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WO2018137284A1 - 一种传输寻呼消息的方法及装置 - Google Patents

一种传输寻呼消息的方法及装置 Download PDF

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Publication number
WO2018137284A1
WO2018137284A1 PCT/CN2017/078198 CN2017078198W WO2018137284A1 WO 2018137284 A1 WO2018137284 A1 WO 2018137284A1 CN 2017078198 W CN2017078198 W CN 2017078198W WO 2018137284 A1 WO2018137284 A1 WO 2018137284A1
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WO
WIPO (PCT)
Prior art keywords
user equipment
message
paging
subframe
transmitting
Prior art date
Application number
PCT/CN2017/078198
Other languages
English (en)
French (fr)
Inventor
徐海博
邝奕如
坦尼•纳坦•爱德华
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN202210101410.XA priority Critical patent/CN114845391B/zh
Priority to CN201780069035.2A priority patent/CN109923912B/zh
Publication of WO2018137284A1 publication Critical patent/WO2018137284A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W68/00User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/005Transmission of information for alerting of incoming communication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W68/00User notification, e.g. alerting and paging, for incoming communication, change of service or the like

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for transmitting a paging message.
  • the direct connection communication mode refers to that the UE directly connects to the base station and performs communication.
  • the non-direct connection communication mode is that the remote user equipment (Remote UE) is connected to the base station through a relay user equipment (Relay User Equipment, Relay UE), and the Relay UE can pass the Internet Protocol (IP) layer. (Layer 3) Implement data forwarding between the base station and the Remote UE.
  • IP Internet Protocol
  • the Packet Data Convergence Protocol (PDCP) layer of the Remote UE can solve the data of the Remote UE, so that the data of the Remote UE has security risks and the like.
  • the Relay UE can forward data by using a data relay method below the PDCP layer based on the Radio Link Control (RLC) layer.
  • the remote user equipment can be called an evolution.
  • Evolved Remote UE eRemote UE
  • the relay user equipment may be called an Evolved Relay UE (eRelay UE).
  • the eRemote UE may receive a control message such as a system message and a paging message sent by the base station by using a direct link with the base station, and perform a data plane with the base station by using a side link between the eRelay UE and the eRelay UE.
  • a control message such as a system message and a paging message sent by the base station by using a direct link with the base station
  • a data plane with the base station by using a side link between the eRelay UE and the eRelay UE.
  • the base station When the core network needs to send data to the eRemote UE in the RRC_IDLE state, the base station needs to send a paging message to the eRemote UE to trigger the eRemote UE to enter the RRC_CONNECTED state, and the eRemote UE only needs to wake up once in one paging cycle, and the base station will At the time point when the eRemote UE wakes up, a paging message is sent to the eRemote UE through a Physical Downlink Control Channel (PDCCH).
  • PDCCH Physical Downlink Control Channel
  • the paging message sent by the base station through the PDCCH cannot be accepted, and the base station cannot establish a communication connection with the eRemote UE.
  • the embodiment of the present application provides a method and an apparatus for transmitting a paging message, which can solve the problem that the paging message sent by the base station cannot be received when the eRemote UE is outside the coverage of the base station.
  • an embodiment of the present application provides a method for transmitting a paging message, where the method includes:
  • the first user equipment receives the first message sent by the network device, where the first message is used to page the second user equipment, and the first message includes at least the paging information of the second user equipment.
  • the first user equipment then generates a second message according to the first message, where the second message is used to page the second user equipment, and the second message includes the paging information of the second user equipment.
  • the first user equipment determines that the second user equipment listens to the listening time of the second message and acquires a resource for sending the second message, so that the first user equipment can use the The resource that sends the second message sends the second message to the second user equipment.
  • the paging information of the second user equipment includes the second user equipment identifier and core network domain information.
  • the first user equipment may be an eRemote UE
  • the second user equipment may be an eRemote UE
  • the network equipment may be a base station
  • the second user equipment identifier may be an IMSI, an S-TMSI, an IMSI mod 1024 of the second user equipment, or other may An identifier that represents the identity of the second user device.
  • the base station may first send the first message to the first user equipment, and then the first user equipment determines that the second user equipment monitors the listening time of the second message, the first user equipment may be used to page the second user during the listening time.
  • the second message of the device is sent to the second user equipment. Since the first user equipment is generally within the coverage of the base station, even if the second user equipment is not within the coverage of the base station, the first user equipment can receive the Call the message.
  • the information for determining the listening time needs to be acquired first, and the method for obtaining the information for determining the monitoring time is:
  • the first user equipment receives the third message sent by the second user equipment, where the third message carries information for determining the listening time; or the first user equipment receives the fourth message sent by the network device, and the fourth message is carried in the fourth message. Information for determining the listening time.
  • the second user equipment or the network device sends information for determining the listening time to the first user equipment, and the first user equipment can determine the listening time of the second user equipment. So that the time for the first user equipment to send the second message is the same as the time for the second user equipment to listen to the second message, so that the paging message can be received even if the second user equipment is not within the coverage of the base station, and compared to The base station transmits a paging message to the second user equipment through the downlink, and the power consumed by the first user equipment to transmit the paging message to the second user equipment through the sidelink is lower.
  • the information sent by the second user equipment or the network device to the first user equipment for determining the listening time includes the second user equipment identifier, the specific paging period of the second user equipment, and the system default paging. At least one of the cycles.
  • the first user equipment before determining the listening time, the first user equipment needs to determine a first identity for determining the listening time, and also needs to determine a first paging cycle for determining the listening time.
  • the first identifier is the first user equipment identifier or the second user equipment identifier, and the first identifier that is used by the first user equipment and the second user equipment to determine the listening time is the same, that is, the first identifier used by the first user equipment. If the first user equipment is identified, the first identifier used by the second user equipment is also the first user equipment identifier; if the first identifier used by the first user equipment is the second user equipment identifier, the second user equipment The first identifier adopted is also the second user equipment identifier.
  • the first paging cycle is the particular paging cycle, or the smaller of the particular paging cycle and the system default paging cycle.
  • the specific paging cycle is a UE-specific Paging cycle of the second user equipment eRemote UE, and the system default paging cycle is a default Paging cycle broadcast by the base station.
  • the first user equipment and the second user equipment employ the same first paging cycle when determining the listening time.
  • the determining the listening time may be further completed according to the combining the first identifier and the first paging period.
  • the process further ensures that the first user equipment can send a second message to the second user equipment on the sidelink, and the second user equipment can receive the second message on the sidelink.
  • the first user equipment may further receive resource pool configuration information configured by the network device for transmitting the second message, where the resource pool configuration information includes At least one of the following information:
  • bitmap bitmap for indicating a subframe in which the second message is transmitted
  • a frequency domain resource location for transmitting the second message A frequency domain resource location for transmitting the second message.
  • the first user equipment determines the listening time of the second user equipment to listen to the second message, which may be implemented as follows:
  • the second message can be sent on the determined radio frame and the subframe, so that the second user equipment does not need to constantly monitor the sidelink, and only needs to Wake up when listening to the second message to receive the second message.
  • the first user equipment determines the location of the radio frame and the location of the subframe monitored by the second user equipment in the sidelink sidelink according to the first identifier, the first paging period, and the nB, which may be implemented as :
  • the first user equipment Determining, by the first user equipment, the location of the radio frame and the location of the subframe monitored by the second user equipment when listening to the downlink according to the first identifier, the first paging period, and the nB, and then the first user equipment monitors the downlink according to the second user equipment.
  • the location of the radio frame and the subframe monitored by the way to determine the second user equipment The location of the radio frame and the location of the subframe monitored on the sidelink sidelink.
  • the first user equipment may determine the location of the radio frame and the location of the subframe that the first user equipment listens to when listening to the downlink according to the following formula.
  • the SFN is the location of the subframe; T is the first paging cycle; N is min (T, nB), and is used to indicate the number of radio frames included in a first paging cycle; Ns:max(1, nB /T), used to indicate the number of subframes included in a radio frame; UE_ID is the first identifier.
  • the SFN obtained by Equation 1 can determine the location of the radio frame monitored by the second user equipment when listening to the downlink.
  • i_s can be obtained, and according to the value of i_s and the value of NS and the position of the subframe.
  • the relationship table can determine the location of the radio frame that the second user equipment listens to when listening to the downlink.
  • the value of the i_s corresponding to the FDD system and the TDD system is different from the correspondence between the value of the NS and the subframe position.
  • the second user equipment adds a first offset to the subframe position monitored by the second user equipment when the second user equipment listens to the downlink, where the first offset is greater than or a positive integer equal to 0; or, the location of the subframe monitored by the second user equipment in the sidelink is the first in the resource pool after adding the second offset to the location of the subframe monitored by the second user equipment when listening to the downlink A subframe that is operative to transmit the second message, the second offset being a positive integer greater than or equal to zero.
  • the location of the radio frame and the location of the subframe monitored by the second user equipment while listening to the downlink are the same as the radio frame position and the subframe position of the second user equipment in the sidelink listening;
  • the location of the radio frame that the second user equipment listens while listening to the downlink is the same as the location of the radio frame that the second user equipment listens on the sidelink.
  • the location of the subframe monitored by the second user equipment while listening to the downlink has a different correspondence relationship with the location of the subframe monitored by the second user equipment in the sidelink.
  • the second frame corresponding to the second terminal corresponding to the TDD configuration 0 to the TDD configuration 6 needs to be monitored in the sidelink: 3, 3, 2 3, 3, 2, 3;
  • the subframe numbers that need to be monitored in the sidelink from the TDD configuration 0 to the TDD configuration 6 are: 7. 7, 7, 2, 2, 7;
  • the subframe numbers corresponding to the second terminal corresponding to the TDD configuration 6 that need to be monitored in the sidelink are: 8, 8, 7, 3, 3, 2, and 8, respectively.
  • the first user equipment determines the listening time of the second user equipment to listen to the second message, and specifically includes:
  • the first user equipment determines that the second user equipment needs to monitor the resource pool period number of the second message in a first paging period, and the resource pool period number is the first number. Identifies mod N.
  • the first user equipment determines that the second user equipment needs to monitor the subframe number of the second message in a resource pool period, where the subframe number is floor (first identifier /N) mod M, and then the first user equipment can Determining, according to the resource pool period number and the subframe number, a subframe position that the second user equipment listens on the sidelink.
  • the first user equipment may trigger an RRC connection establishment procedure to switch to the RRC_CONNRECTED state.
  • the first user equipment and the base station can communicate by using a dedicated message, so that the first user equipment can request the base station to acquire the resource for sending the second message, or the base station actively passes.
  • the dedicated message sends a resource for transmitting the second message to the first user equipment, thereby enabling the first user equipment to use the resource provided by the base station to send the second message through the sidelink.
  • the network device when the network device needs to send the first message to the first user equipment, if the first user equipment is in the RRC_IDLE state, the network device triggers the RRC connection establishment process of the first user equipment, so that the first user The device transitions to the RRC_CONNRECTED state. After the first user equipment is switched to the RRC_CONNRECTED state, the first user equipment and the base station can communicate by using a dedicated message, so that the first user equipment can request the base station to acquire the resource for sending the second message, or the base station actively passes.
  • the dedicated message sends a resource for transmitting the second message to the first user equipment, thereby enabling the first user equipment to use the resource provided by the base station to send the second message through the sidelink.
  • the first user equipment acquires a resource for sending the second message
  • the first user equipment may send a fifth message to the network device, where the fifth message is used to request to acquire a resource for sending the second message;
  • the first user equipment receives the sixth message sent by the network device, where the sixth message includes resource information or resource pool information that the network device allocates for the first user equipment to send the second message.
  • the fifth message includes at least one of the following information:
  • the purpose of the request is to indicate that the purpose of the fifth message is to acquire a resource for sending the second message
  • the number of paging information included in the second message, and each second user equipment corresponds to one paging information
  • the number of bits contained in the second message is the number of bits contained in the second message.
  • Each group of paging information includes a second device identifier and a core domain information, and the core domain information is a CS domain or a PS domain.
  • the first user equipment acquires a resource for sending the second message, and may also be implemented as:
  • the first user equipment acquires a resource for sending the second message from the first message, where the first message includes resource information or resource pool information allocated by the network device for the first user equipment to send the second message.
  • the first user equipment may further receive the first message by using the RRC layer, and generate, by the RRC layer, the second message according to the first message.
  • the second message generated by the first user equipment by using the RRC layer may be applicable to any short-distance connection technology, not only limited to the sidelink connection, but also may be a WLAN connection, etc., and the paging message transmitted by the application is extended.
  • the scope of application of the method may be applicable to any short-distance connection technology, not only limited to the sidelink connection, but also may be a WLAN connection, etc., and the paging message transmitted by the application is extended. The scope of application of the method.
  • an embodiment of the present application provides a method for transmitting a paging message, where the method includes:
  • the second user equipment determines the listening time of the second message, the second message is used to page the second user equipment, the second message includes the paging information of the second user equipment, and then the second user equipment monitors the monitoring time.
  • the second message sent by the first user equipment receives the second message when the second message is monitored.
  • the paging information of the second user equipment includes the second user equipment identifier and core network domain information.
  • the first user equipment may be an eRemote UE
  • the second user equipment may be an eRemote UE
  • the network equipment may be a base station
  • the second user equipment identifier may be an IMSI, an S-TMSI, an IMSI mod 1024 of the second user equipment, or other may An identifier that represents the identity of the second user device.
  • the second user equipment can first determine the listening time of the second message, and can listen to the second message sent by the first user equipment during the listening time, which is equivalent to the first user equipment transmitting the paging message through the sidelink. Even if the second user equipment is not within the coverage of the base station The second message can be received through the sidelink. In addition, the process of transmitting the second message through the sidelink between the first user equipment and the second user equipment consumes more power than transmitting the second message through the downlink between the base station and the second user equipment. small.
  • the information for determining the listening time needs to be acquired first, and the method for obtaining the information for determining the monitoring time is:
  • the second user equipment further needs to send a third message to the first user equipment, where the third message carries a specific paging period of the second user equipment, and then the second user equipment receives the seventh message sent by the first user equipment, where the The seven messages carry information for determining the listening time.
  • the first user may receive the information sent by the second user equipment for determining the listening time, and the second user equipment may determine the listening time of the second user equipment, so that The time when the second user equipment sends the second message is the same as the time when the second user equipment listens to the second message, so that the paging message can be received even if the second user equipment is not within the coverage of the base station, and the downlink is compared to the base station.
  • the link transmits a paging message to the second user equipment, and the power consumed by the first user equipment to transmit the paging message to the second user equipment through the sidelink is lower.
  • the information for determining the listening time includes at least one of a first user equipment identifier, nB, and a system default paging cycle broadcast by the network device, and nB is the number of subframes included in one paging cycle. ;or,
  • the information used to determine the listening time is resource pool configuration information configured by the network device for transmitting the second message, and the resource pool configuration information includes at least one of the following information:
  • bitmap bitmap for indicating a subframe in which the second message is transmitted
  • a frequency domain resource location for transmitting the second message A frequency domain resource location for transmitting the second message.
  • the resource pool configuration information may be used to determine, by the resource pool configuration information, the listening time of the second user equipment to listen to the second message, and may further determine, for sending the second message.
  • the first user equipment can send the second message to the second user equipment by using the resource for sending the second message, and the first user equipment and the second user equipment can use the sidelink transmission. Paging message.
  • the second user equipment determines a first identity for determining the listening time and also determines a first paging cycle for determining the listening time.
  • the first identifier is the first user equipment identifier or the second user equipment identifier, and the first user equipment and the second user equipment are used to determine that the first identifier of the listening time is the same.
  • the first paging cycle is a specific paging cycle, or the smaller of the specific paging cycle and the system default paging cycle.
  • the specific paging cycle is a UE-specific Paging cycle of the second user equipment eRemote UE, and the default paging cycle of the system is the default broadcast by the base station. Paging cycle.
  • the first user equipment and the second user equipment employ the same first paging cycle when determining the listening time.
  • the determining the listening time may be further completed according to the combining the first identifier and the first paging period.
  • the process in turn, can monitor the sidelink at the listening time, thereby receiving the second message sent by the second user equipment through the sidelink at the listening time.
  • the second user equipment determines the listening time of the second message, which can be implemented as follows:
  • the second user equipment determines the location of the subframe monitored by the second user equipment on the sidelink sidelink according to the first identifier, the first paging cycle, and the nB.
  • the second user equipment determines the location of the subframe monitored by the second user equipment in the sidelink sidelink according to the first identifier, the first paging period, and the nB, which may be implemented as follows:
  • the second user equipment Determining, by the second user equipment, the location of the radio frame and the location of the subframe monitored by the second user equipment when listening to the downlink according to the first identifier, the first paging period, and the nB, and then the second user equipment monitors the downlink according to the second user equipment.
  • the location of the radio frame and the subframe monitored by the way determines the location of the radio frame and the subframe monitored by the second user equipment in the sidelink.
  • the second user equipment determines the listening time for listening to the second message, it is not necessary to always listen to the sidelink, and only needs to wake up at the listening time to listen to the second message.
  • the second user equipment may determine the location of the radio frame and the location of the subframe that the first user equipment listens to when listening to the downlink according to the following formula.
  • the SFN is the location of the subframe; T is the first paging cycle; N is min (T, nB), and is used to indicate the number of radio frames included in a first paging cycle; Ns:max(1, nB /T), used to indicate the number of subframes included in a radio frame; UE_ID is the first identifier.
  • the SFN obtained by Equation 1 can determine the location of the radio frame monitored by the second user equipment when listening to the downlink.
  • i_s can be obtained, and according to the value of i_s and the value of NS and the position of the subframe.
  • the relationship table can determine the location of the radio frame that the second user equipment listens to when listening to the downlink.
  • the value of the i_s corresponding to the FDD system and the TDD system is different from the correspondence between the value of the NS and the subframe position.
  • the second user equipment adds a first offset to the subframe position monitored by the second user equipment when the second user equipment listens to the downlink, where the first offset is greater than or equal to a positive integer of 0; or,
  • the second user equipment listens to the downlink of the second user equipment at the location of the subframe monitored by the sidelink
  • the position of the subframe monitored by the waypoint plus the second offset, the first subframe in the resource pool that can be used to transmit the second message, and the second offset is a positive integer greater than or equal to 0.
  • the second user equipment determines the listening time of the second message, which can be implemented as follows:
  • the second user equipment determines that the second user equipment needs to monitor the resource pool period number of the second message in a first paging period, where the resource pool period number is the first identifier mod N, and then the second user equipment determines During a resource pool period, the second user equipment needs to monitor the subframe number of the second message, and the subframe number is floor (first identifier /N) mod M, and the second user equipment can then use the resource pool period number and the subframe. The number determines the subframe position at which the second user equipment listens on the sidelink.
  • the second user equipment determines the listening time for listening to the second message, and may also be implemented as:
  • the device monitors the frame number and the subframe number of the second message on the sidelink, where SL_offset is a resource pool offset.
  • the present application provides an apparatus for transmitting a paging message, where the apparatus may implement the functions performed by the first user equipment in the foregoing first aspect, and the functions may be implemented by hardware, or may be performed by hardware.
  • Software Implementation The hardware or software includes one or more modules corresponding to the above functions.
  • the apparatus includes a processor and a communication interface configured to support the apparatus to perform the corresponding functions of the above methods.
  • the communication interface is used to support communication between the device and other network elements.
  • the apparatus can also include a memory for coupling with the processor that retains the program instructions and data necessary for the apparatus.
  • the present application provides an apparatus for transmitting a paging message, where the apparatus may implement the functions performed by the second user equipment in the foregoing second aspect, and the functions may be implemented by hardware, or may be performed by hardware.
  • Software Implementation The hardware or software includes one or more modules corresponding to the above functions.
  • the apparatus includes a processor and a communication interface configured to support the apparatus to perform the corresponding functions of the above methods.
  • the communication interface is used to support communication between the device and other network elements.
  • the apparatus can also include a memory for coupling with the processor that retains the program instructions and data necessary for the apparatus.
  • the application provides a system for transmitting a paging message, including the first user equipment, the second user equipment, and the network equipment in the foregoing aspect.
  • the present application provides a computer storage medium for storing computer software instructions for use in the first user equipment, including a program designed to perform the above aspects.
  • the application example provides a computer storage medium for storing computer software instructions used by the second user equipment end, which includes a program designed to perform the above aspects.
  • the base station directly sends a paging message to the second user equipment.
  • the base station may Sending the first message to the first user equipment, where the first user equipment and the second user equipment determine the listening time of the second user equipment to listen to the second message, and the first user equipment can be used for paging in the listening time.
  • the second message of the second user equipment is sent to the second user equipment. Since the first user equipment is generally within the coverage of the base station, the second user equipment can receive the first user equipment even if the second user equipment is not within the coverage of the base station. To the paging message.
  • FIG. 1 is a schematic structural diagram of a network structure according to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of another network structure provided by an embodiment of the present application.
  • FIG. 3 is a flowchart of a method for transmitting a paging message according to an embodiment of the present application
  • FIG. 4 is a flowchart of another method for transmitting a paging message according to an embodiment of the present application
  • FIG. 5 is an exemplary schematic diagram of a method for transmitting a paging message according to an embodiment of the present application
  • FIG. 6 is an exemplary schematic diagram of another method for transmitting a paging message according to an embodiment of the present disclosure
  • FIG. 7 is an exemplary schematic diagram of another method for transmitting a paging message according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of another method for transmitting a paging message according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of another method for transmitting a paging message according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of another method for transmitting a paging message according to an embodiment of the present application.
  • FIG. 11 is a schematic diagram of another method for transmitting a paging message according to an embodiment of the present application.
  • FIG. 12 is a schematic diagram of a logical structure of an apparatus for transmitting a paging message according to an embodiment of the present application
  • FIG. 13 is a schematic structural diagram of another apparatus for transmitting a paging message according to an embodiment of the present application.
  • a User Equipment also called a terminal, is a device that provides voice and/or data connectivity to a user, for example, a handheld device with a wireless connection function, an in-vehicle device, and the like.
  • Common user devices include, for example, mobile phones, tablets, notebook computers, PDAs, mobile internet devices (MIDs), wearable devices such as smart watches, smart bracelets, pedometers, and the like.
  • a base station also known as a radio access network (RAN) device, is a device that accesses a user equipment to a wireless network, including but not limited to: an evolved Node B (eNB), a wireless network.
  • Radio network controller RNC
  • Node B NB
  • BSC Base Station Controller
  • BTS Base Transceiver Station
  • HNB BaseBand Unit
  • future network such as a 5G network (such as a network applying a new radio technology), a Node B (gNB) that continues to evolve.
  • gNB Node B
  • it may also include a Wifi access point (AP), a transmission and reception point (TRP), and the like.
  • AP Wifi access point
  • TRP transmission and reception point
  • first and second and the like in the specification and claims of the present application are used to distinguish different objects, and are not intended to describe a particular order of the objects.
  • the first user equipment in the application may be an eRelay UE
  • the second user equipment may be an eRemote UE.
  • the principle of the present application is that the base station sends a paging message that needs to be sent to the eRemote UE to the eRelay UE through the downlink, and then the eRelay UE sends the paging message to the eRemote UE through the sidelink (hereinafter, the eRelay UE passes the eRemote UE to the eRemote UE)
  • the paging message sent by the sidelink is called an SL paging message).
  • the method for the eRelay UE to send the SL paging message to the eRemote UE is: the eRelay UE determines the listening time of the eRemote UE to listen to the paging message by using the identifier of the eRemote UE and the UE-specific Paging cycle, and acquires the LA paging message allocated by the base station.
  • the eRelay UE sends a paging message to the eRemote UE using the resources allocated by the base station during the listening time.
  • the eRemote UE also communicates with the eRelay UE to determine the listening time and listen to the SL paging message sent by the eRelay UE.
  • the base station does not need to directly send a paging message to the eRemote UE, and even if the eRemote UE is not within the coverage of the base station, the paging message can be received by the eRelay UE.
  • the network architecture includes: a base station 101, an eRelay UE 102 within the coverage of the base station 101, and a plurality of eRemote UEs 103 having a sidelink connection with the eRelay UE 102.
  • the eRemote UE103 has the characteristics of small size, low power consumption, and the like, and is generally a wearable device, such as a smart watch or a smart hand.
  • the base station 101 and the eRelay UE 102 can communicate between the uplink and the downlink.
  • the eRelay UE 102 and the eRemote UE 103 can communicate through the sidelink communication technology, and the communication link between the eRelay UE 102 and the eRemote UE 103 can be referred to as a side link, and between the eRelay UE 102 and the eRemote UE 103
  • the communication can be performed by using the non-3GPP access technology, for example, the Bluetooth access technology, the WALN access technology, and the like.
  • the present application does not limit this.
  • the following is an example in which the eRelay UE 102 and the eRemote UE 103 communicate with each other through sidelink communication.
  • FIG. 1 is only a schematic diagram of a network architecture applied in the present application. In actual deployment, the number of devices in the network structure is not limited to the number of devices shown in FIG. 1.
  • the base station 101 may include: a communication interface 1011, a processor 1012, a memory 1013, and at least one communication bus 1014.
  • the communication bus 101 is used to implement connection and mutual communication between the devices.
  • the eRelay UE 102 may include: Communication interface 1021, processor 1022, memory 1023, and at least one communication bus 1024 for implementing connection and mutual communication between these devices;
  • eRemote UE 103 may include: communication interface 1031, processor 1032, memory 1033, and at least A communication bus 1034 is used to implement the connections and intercommunication between these devices.
  • the communication interface 1011, the communication interface 1021, and the communication interface 1031 can be implemented by an antenna, and can be used for data interaction with an external network element.
  • the communication interface 1011 of the base station 101 can send and receive data packets with the eRelay UE 102 or Other information, and the communication interface 1011 of the base station 101 can also send and receive data packets or other information between the eRemote UE 103 (the connection relationship between the communication interface 1011 and the communication interface 1031 is omitted in FIG. 2); the communication interface 1021 of the eRelay UE 102 can Transmitting or transmitting data packets or other information between the base station 101 or the eRemote UE 103.
  • the communication interface 1031 may send the data of the eRemote UE 103 and other information to the communication interface 1021. After receiving the data or other information, the communication interface 1021 sends data or other information to the communication interface 1011 through the radio bearer between the eRelay UE 102 and the base station. And handed over to the base station 101 for processing.
  • the processor 1012, the processor 1022, and the processor 1032 may be a central processing unit (CPU), may be an application specific integrated circuit (ASIC), or be configured to be implemented.
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • DSP Digital Singnal Processor
  • FPGAs Field Programmable Gate Arrays
  • the processor 1012, the processor 1022, and the processor 1032 have processing management functions.
  • the processor 1012 in the base station 101 can process the data or information sent by the received eRelay UE 102, and the processor 1022 in the eRelay UE 102 can The received data or information transmitted by the eRemote UE0103 is processed, and the data or information sent by the base station 101 can also be processed.
  • the processor 1032 in the eRemote UE 103 can process data or information generated by the Remote UE 103 itself or process information or data sent by other devices.
  • the memory 1013, the memory 1023, and the memory 1033 may be a volatile memory such as a random access memory (RAM) or a non-volatile memory.
  • RAM random access memory
  • non-volatile memory For example, read-only memory (English: Read-Only Memory, ROM), flash memory, hard disk drive (HDD) or solid state drive (SSD); or the above type of memory The combination.
  • the memory 1013, the memory 1023, and the memory 1033 may be The data or program code supporting the data transmission method according to the embodiment of the present invention is stored, so that the processor 1012, the processor 1022, and the processor 1032 perform the embodiments of the present invention according to data or program code stored in the memory of the device in which the device is located. Data transfer method.
  • the communication bus 1014, the communication bus 1024, and the communication bus 1034 can be divided into an address bus, a data bus, a control bus, etc., and can be an industry standard architecture (Industry Standard Architecture, ISA) bus, and an external device interconnection (English: Peripheral Component) , PCI) bus or extended industry standard architecture (English: Extended Industry Standard Architecture, EISA) bus.
  • ISA Industry Standard Architecture
  • PCI Peripheral Component
  • EISA Extended Industry Standard Architecture
  • the embodiment of the present application provides a transmission search.
  • the method of calling a message is as shown in FIG. 3, and the method includes:
  • the network device sends a first message to the first user equipment, where the first message is used to page the second user equipment, and the first message includes at least paging information of the second user equipment.
  • the paging information of the second user equipment includes the second user equipment identifier and the core network domain information, and the core network domain information may be a Circuit Switching (CS) domain or a Packet Switching (PS) domain.
  • CS Circuit Switching
  • PS Packet Switching
  • the network device in this step may be a base station, and the first user equipment in the embodiment of the present application may be an eRelay UE, and the second user equipment may be an eRemote UE, and the second user equipment described in this embodiment is A second user device having a link with the first user device.
  • the base station When the base station needs to send data to the eRemote UE in the RRC_IDLE state, it needs to send a paging message to the eRemote UE, thereby triggering the eRemote UE to enter the RRC_CONNECTED state.
  • the base station sends the paging message to the eRelay UE, and the eRelay UE further sends the paging message to the eRemote UE.
  • the first message sent by the base station to the eRelay UE may be a broadcast message or a dedicated message sent to the eRelay UE.
  • the first message may include paging information of multiple eRemote UEs that the base station needs to send a paging message, where the paging information of the eRemote UE that establishes the sidelink with the eRelay UE is included, and includes The paging information of the eRemote UE that does not establish a sidelink with the eRelay UE; when the first message is a dedicated message sent to the eRelay UE, the first message includes paging information of multiple eRemote UEs that the base station needs to send the paging message, and these
  • the eRemote UE is an eRemote UE that has established a sidelink with the eRelay UE.
  • the first user equipment generates a second message according to the first message, where the second message is used to page the second user equipment, and the second paging message includes the paging information of the second user equipment.
  • the eRelay UE needs to filter the paging information of the eRemote UE with the sidelink from the first message, and generate a second message for each eRemote UE that is selected, corresponding to The second message of each eRemote UE respectively includes paging information of the respective eRemote UE.
  • the eRelay UE generates a second message, the second The message includes paging information of all eRemote UEs carried in the first message.
  • the eRelay UE does not perform any screening, and directly forwards the first message to at least one eRemote UE with its own sidelink.
  • the eRelay UE needs to obtain the paging information of the eRemote UE in the first message, and generate a second message for each eRemote UE according to the first message, corresponding to the second of each eRemote UE.
  • the messages respectively contain paging information of the respective eRemote UEs.
  • the eRelay UE generates a second message, where the second message includes paging information of all eRemote UEs carried in the first message.
  • the first message received by the eRelay UE1 is a broadcast message, and the first message carries paging information of three second user equipments, which are eRemote UE1, eRemote UE2, and eRemote UE3, respectively.
  • eRemote UE1 There is a sidelink connection between eRemote UE1 and eRemote UE2 and eRelay UE1, and a sidelink connection exists between eRemote UE3 and eRelay UE2.
  • the eRemote UE1 needs to generate the second message for the eRemote UE1 and the eRemote UE2, and the second message corresponding to the eRemote UE1 includes the paging information of the eRemote UE1, and the second message corresponding to the eRemote UE2 includes the paging information of the eRemote UE2.
  • the first user equipment determines a listening time for the second user equipment to listen to the second message.
  • the first user equipment determines a resource used to send the second message.
  • step 302 does not limit the execution order between step 302, step 303, and step 304.
  • the second user equipment determines a listening time for listening to the second message.
  • the method for determining the listening time by the second user equipment is the same as the method for determining the listening time by the first user equipment, but the method for the second user equipment to obtain the parameter for determining the listening time and the method for obtaining the monitoring time by the first user equipment.
  • the method of information is different.
  • step 305 does not limit the execution sequence between step 305 and step 302, step 303, and step 304 above, and step 305 only needs to be performed before step 306.
  • the first user equipment sends a second message to the second user equipment by using a resource for sending the second message at the listening time.
  • the second user equipment monitors the second message sent by the first user equipment during the listening time.
  • both the first user equipment and the second user equipment have determined that the second user equipment listens to the monitoring time of the second message, and the first user equipment sends the second message at the listening time, where the second user equipment is The second message can be monitored at the listening time.
  • the second user equipment receives the second message.
  • the second user equipment After receiving the second message, the second user equipment also needs to notify the upper layer protocol layer of the device identifier, so that the upper layer protocol layer triggers the second user equipment to initiate the RRC connection establishment process, and transitions to the RRC_CONNECTED state.
  • the method for transmitting a paging message may be unable to send a paging message directly to the second user equipment in the prior art, and the second user equipment may not be within the signal coverage of the base station.
  • the base station may first send the first message to the first user equipment, and then the first user equipment and the second user equipment determine the listening time of the second user equipment to listen to the second message.
  • a user equipment can send a second message for paging the second user equipment to the second user equipment at the listening time. Since the first user equipment is generally within the coverage of the base station, even if the second user equipment is not in the Within the coverage of the base station, the paging message can also be received by the first user equipment.
  • the eRemote UE directly receives the paging message sent by the base station and consumes a higher power, and receiving the paging message through the sidelink between the eRemote UE and the eRelay UE can reduce the consumed power.
  • both the first user equipment and the second user equipment need to first determine the listening time of the second user equipment to listen to the second message, and then the first user equipment passes the sidelink to the second user at the listening time.
  • the device sends the second message to enable the second user equipment to receive the second message at the listening time.
  • the parameters required for determining the listening time are obtained, and based on this, in an implementation manner provided by the embodiment of the present invention, the obtaining determining is monitored.
  • the method of parameters required at time is as shown in FIG. 4, and the method includes:
  • the second user equipment sends a third message to the first user equipment, where the third message carries information used to determine the listening time.
  • the information used to determine the listening time in the third message may include a specific paging period of the second user equipment (ie, a UE-specific Paging cycle of the eRemote UE), and a default Paging cycle broadcast by the base station. At least one of the second user equipment identification.
  • the first user equipment and the second user equipment need to use the first identifier when determining the listening time, and the first identifier may be the first user equipment identifier or the second user equipment identifier, the first user.
  • the device and the second user equipment negotiate in advance whether the first identifier used is the first user equipment identifier or the second user equipment identifier. It can be understood that when the first identifier used is the second user equipment identifier, the third user equipment identifier is included in the third message.
  • the third message may be a newly defined PC5-S message transmitted between the eRemote UE and the eRelay UE.
  • the third message may be determined as a paging monitoring request message.
  • the third message may also be an existing message, for example, a request message (Direct_Communicaiton_Request), which may be sent by the eRemote UE, for establishing a Sidelink connection between the eRemote UE and the eRelay UE, that is, the eRemote UE sends a establish sidelink connection to the eRelay UE.
  • a request message (Direct_Communicaiton_Request)
  • the request message When the request message is received, the information contained in the third message described above may be carried in the request message.
  • the first user equipment sends a seventh message to the second user equipment.
  • the first user equipment After receiving the third message, the first user equipment replies with the seventh message to the second user equipment, when the first identifier used by the first user equipment and the second user equipment determines that the first identifier is the first user equipment identifier.
  • the first user equipment identifier needs to be carried in the seventh message.
  • the second user equipment may determine the listening time by nB (the number of subframes included in one paging cycle), the default paging cycle broadcast by the network device, and some information known by the first user equipment, or the first user.
  • the device may also determine the listening time through the resource pool configuration information and some information known by the first user equipment.
  • the seventh message may carry at least one of nB and a system default paging cycle broadcast by the network device; or
  • the seventh message may carry resource pool configuration information configured by the network device for transmitting the second message, where the resource pool configuration information includes at least one of the following information:
  • bitmap bitmap for indicating a subframe in which the second message is transmitted
  • a frequency domain resource location for transmitting the second message A frequency domain resource location for transmitting the second message.
  • the seventh message may further include an offset PO_offset for receiving the second message configured by the first user equipment for the second user equipment, where PO_offset is the first user equipment according to the second user equipment identifier and the paging period.
  • An offset configured for the second user equipment to determine a subframe position at which the second user equipment listens for the second message.
  • the seventh message may be a newly defined PC5-S message transmitted between the eRemote UE and the eRemote UE.
  • the seventh message can be determined as a Paging Monitoring Reponse.
  • the seventh message may also be an existing message, for example, a response message (Direct_Communicaiton_Reponse) that may be sent by the eRelay UE to establish a Sidelink connection between the eRemote UE and the eRelay UE, that is, the eRemote UE sends a establish sidelink connection to the eRelay UE.
  • the response message may be carried in the request message carrying the information contained in the seventh message described above.
  • the foregoing seventh message may also be a message periodically broadcast by the second user equipment, where the broadcast message may be a newly defined sidelink between the first user equipment and the second user equipment.
  • the broadcast message sent on the broadcast message may also be an existing one.
  • the first user may receive the broadcast message through the sidelink, and then obtain the information carried in the broadcast message.
  • the first user equipment may further obtain, from the network device, the second user equipment identifier, and the UE-specific Paging cycle of the second user equipment, used to determine the monitoring time, where the network side device may Sending a fourth message to the first user equipment, where the fourth message carries the information of the UE-specific Paging cycle of the second user equipment for determining the listening time.
  • the information for determining the listening time includes at least one of a second user equipment identifier, a system default paging period, and a specific paging period of the second user equipment.
  • the base station may separately send a fourth message of the UE-specific Paging cycle carrying the eRemote UE to the eRelay UE in the form of a dedicated message, or may be in the paging.
  • the eRemote UE sends the UE-specific Paging cycle of the eRemote UE to the eRelay UE.
  • the network side device includes the MME and the base station. First, the MME sends a paging message of the UE-specific Paging cycle carrying the eRemote UE to the base station.
  • the base station After receiving the paging message, the base station sends a paging message of the UE-specific Paging cycle of the eRemote UE to the eRelay UE.
  • the fourth message may be the first message described in the embodiment shown in FIG. That is, the first message may also include a specific paging cycle of the second user equipment.
  • the first user equipment and the second user equipment may determine, according to the information obtained by the first user equipment and the second user equipment, that the second user equipment monitors the second message, in the determining, Before the second user equipment monitors the listening time of the second message, both the first user equipment and the second user equipment need to determine a first identifier for determining the listening time, and a first paging period for determining the first listening time.
  • the first identifier is the first user equipment identifier or the second user equipment identifier, that is, the device identifier of the eRelay UE or the device identifier of the eRemote UE.
  • the device identifier may be an International Mobile Subscriber Identity (IMSI), an S-TMSI, an IMSI mod 1024 of the user equipment, or other identifiers that may represent the identity of the user equipment.
  • IMSI International Mobile Subscriber Identity
  • S-TMSI S-TMSI
  • IMSI mod 1024 of the user equipment
  • the first paging cycle may be a specific paging cycle of the second user equipment, or a smaller one of a specific paging cycle of the second user equipment and a system default paging cycle broadcast by the network device, ie, the first paging cycle. It may be the UE-specific Paging cycle of the eRemote UE, or the smaller of the UE-specific Paging cycle of the eRemote UE and the default Paging cycle broadcast by the base station.
  • the listening time can be determined according to the information used to determine the listening time.
  • the method for determining the listening time is the same as the method for determining the listening time by the first user equipment and the second user equipment.
  • the following uses the first user equipment as an example for description.
  • the following embodiments of the present application provide the following three methods for determining the listening time.
  • the first user equipment determines the location of the radio frame and the location of the subframe monitored by the second user equipment in the sidelink according to the first identifier, the first paging cycle, and the nB.
  • the specific determining method is: first, the first user equipment determines, according to the first identifier, the first paging period, and the nB, the location of the radio frame and the location of the subframe monitored by the second user equipment when listening to the downlink, and then according to the The location of the radio frame and the subframe monitored by the second user equipment when listening to the downlink, and determining the location of the radio frame and the location of the subframe monitored by the second user equipment in the sidelink.
  • the location of the radio frame and the location of the subframe monitored by the eRemote UE when the Uu interface listens to the downlink may be determined according to the following formula.
  • SFN is the location of the subframe
  • T is the first paging cycle
  • N is min(T, nB), It indicates the number of radio frames included in a first paging cycle
  • Ns:max(1, nB/T) is used to indicate the number of subframes included in one radio frame
  • UE_ID is the first identifier.
  • the SFN obtained by the above formula 1 can determine the location of the radio frame monitored by the eRemote UE when listening to the downlink. According to Equation 2, i_s can be obtained, and then the eRemote UE can be determined to listen to the downlink according to i_s in combination with Table 1 or Table 2. The position of the sub-frame to be monitored.
  • the possible subframe positions are 0, 4, 5, and 9.
  • the position of the subframe monitored by the eRemote UE when listening to the downlink may be determined according to i_s and Table 1.
  • the possible subframe positions are 0, 1, 5, and 6.
  • the position of the subframe monitored by the eRemote UE when listening to the downlink may be determined according to i_s and Table 2.
  • the eRemote UE After determining the location of the radio frame and the location of the subframe monitored by the eRemote UE in the downlink, the eRemote UE can determine the location of the radio frame and the location of the subframe monitored by the eRemote UE, and the determining method includes the following two implementation manners:
  • Implementation 1 According to the position of the radio frame and the position of the subframe monitored by the configured eRemote UE while listening to the downlink, the eRemote UE determines the correspondence between the location of the radio frame and the location of the subframe monitored by the eRemote UE in the sidelink. The location of the radio frame and the location of the subframe monitored by the sidelink.
  • the location of the radio frame and the location of the subframe monitored by the eRemote UE while listening to the downlink are the same as the location of the radio frame monitored by the eRemote UE in the sidelink and the position of the subframe, as shown in FIG. 5, the eRemote UE is in the sidelink.
  • the radio frames to be monitored are the radio frame A and the radio frame X
  • the sub-frames to be monitored are the sub-frames represented by the shaded portions in the radio frame A and the radio frame X.
  • the location of the radio frame monitored by the eRemote UE while listening to the downlink is the same as the location of the radio frame monitored by the eRemote UE in the sidelink, and the subframe that the eRemote UE listens while listening to the downlink according to different TDD configurations.
  • the location of the subframe is different from the location of the subframe monitored by the eRemote UE in the sidelink.
  • Table 3 One possible correspondence is shown in Table 3.
  • the Uu PO in Table 3 represents the eRemote UE while listening to the downlink.
  • the SL PO represents the location of the subframe that the eRemote UE listens on in the sidelink.
  • the second user equipment adds a first offset to the subframe position monitored by the second user equipment when the second user equipment listens to the downlink, where the first offset is greater than or equal to 0. Positive integer.
  • the first offset may be configured by the first user equipment, or may be configured by the base station, or may be a preset value.
  • the subframe number is Subfrmae#0
  • the subframe whose subframe number is Subfrmae#0.
  • the first one of the resource pools may be used for transmission.
  • the subframe of the second message the second offset is a positive integer greater than or equal to 0.
  • the second offset may be configured by the first user equipment, or may be configured by the base station, or may be a preset value.
  • the subframe number is Subfrmae#0
  • the subframe number is Subfrmae #5.
  • the first user equipment determines, according to the resource pool configuration information, the first identifier, and the first paging cycle, the number N of resource pool periods included in one paging cycle of the second user equipment, and uses in each resource pool period.
  • the number M of subframes used to send the second message in each resource pool period may be determined, thereby determining each resource.
  • the index numbers corresponding to the subframes that can be used to send the second message in the pool cycle are 0, 1, 2, ..., M-1, respectively.
  • the bitmap of the subframe used for transmitting the second message in one resource pool period is (0010000000, 0000000100)
  • the numbers are 0,1 respectively. As shown in FIG.
  • the subframe for transmitting the second message according to the bitmap is a subframe corresponding to the shaded area, that is, in the resource period 1, there are two subframes for transmitting the second message, the first one.
  • the subframe used for transmitting the second message is the subframe 2 in the first frame, then the index number corresponding to the subframe is 0, and the second subframe used for transmitting the second message is the child in the first frame.
  • the first user equipment determines that the second user equipment needs to monitor the resource pool period number of the second message in a first paging period, and the resource pool period number is the first identifier mod N.
  • N is the number of resource pool periods included by the eRemote UE determined in the previous step in one paging cycle.
  • the first user equipment determines that the second user equipment needs to listen to the index number corresponding to the subframe of the second message in a resource pool period, and the subframe index number is floor (first identifier /N) mod M.
  • the first user equipment determines, according to the resource pool period number determined in step 2 and the subframe index number determined in step 3, the subframe position monitored by the second user equipment in the sidelink.
  • the subframe position corresponding to the subframe number may be determined from the resource pool period corresponding to the resource pool period number, where the subframe position is the second user equipment listening on the sidelink Subframe position.
  • the resource pool period is 20 ms
  • the resource pool offset is 10 ms
  • the bitmap of the uplink subframe position for transmitting the second message in one resource pool period is (0010000000, 0000000000).
  • two eRelay UEs have two connections to them (link)
  • the relationship is either an eRemote UE with a side-link connection established, and the paging periods of the two eRemote UEs are both 320 ms. If the subframe position of the eRemote UE1 allocated to the eRemote UE1 in each paging cycle is the subframe 0 shown in FIG.
  • subframe position allocated by the eRelay UE to the eRemote UE2 in each paging cycle is as shown in the figure.
  • the PO_offsets that the eRelay UE needs to configure for the two eRemote UEs are 2 and 22, respectively.
  • the first user equipment and the second user equipment may determine the listening time of the second user equipment to listen to the second message, and then the first user equipment sends the second message during the listening time, and the second user equipment may The second time is received by the second user equipment, so that the second user equipment does not need to listen to the second message on the downlink, and the power consumption is reduced, and the second user equipment does not need to constantly monitor the sidelink, and only needs to wake up at the listening time to receive the second message.
  • the message is fine.
  • the second user equipment Before the second user equipment sends the second message to the second user equipment, it is not only necessary to determine the listening time of the second user equipment to listen to the second message, but also to determine the resource for sending the second message, in another embodiment of the present invention.
  • the method for determining, by the first user equipment, the resource for sending the second message is described in the foregoing step 204.
  • the first user equipment After the first user equipment receives the first message sent by the network device, if it is determined that the first message includes the device identifier of the eRemote UE that has established a sidelink connection with itself, whether the first user equipment is in the RRC_IDLE state or the RRC_CONNECTED state, the first The user equipment determines that the second user equipment monitors the subframe of the second message in the sidelink, and further combines the frequency domain resource location for transmitting the second message included in the resource pool configuration information, in the determined subframe, etc.
  • the frequency domain resource for transmitting the second message is randomly selected in a probabilistic manner.
  • the first user equipment After the first user equipment receives the first message sent by the network device, if it is determined that the first message includes the device identifier of the eRemote UE that has established a sidelink connection with itself, if the first user equipment is in the RRC_IDLE state, the first user equipment Determining, by the second user equipment, the subframe of the second message in the sidelink, and combining the frequency domain resource location for transmitting the second message included in the resource pool configuration information, and randomly acquiring the subframe in the determined probability Select the frequency domain resource used to transmit the second message.
  • the first user equipment After the first user equipment receives the first message sent by the network device, if it is determined that the first message includes the device identifier of the eRemote UE that has established a sidelink connection with itself, if the first user equipment is in the RRC_CONNECTED state, the first user equipment Sending a fifth message to the network device, where the fifth message is used to request to obtain the resource for sending the second message, and after receiving the fifth message, the network device returns a sixth message to the first user equipment, where the sixth message includes the network device The resource information or resource pool information allocated by the first user equipment for sending the second message.
  • the fifth message includes at least one of the following information:
  • the purpose of the request is to indicate that the purpose of the fifth message is to acquire a resource for sending the second message;
  • the time at which the second message is sent may be the frame number and the subframe number used by the first user equipment to send the second message;
  • the number of paging information included in the second message, each second user equipment corresponding to one paging information, each paging information includes a second user equipment identifier and a core network domain information, and the core network domain information is circuit switched. (Circuit Switching, CS) domain or Packet Switching (PS) domain.
  • CS Circuit Switching
  • PS Packet Switching
  • the network device sends a first message for paging the second user equipment to the first user equipment by means of a broadcast, if it is determined that the first message includes a sidelink connection established with itself.
  • the device identifier of the eRemote UE the first user equipment determines that the second user equipment monitors the subframe of the second message in the sidelink, and further combines the frequency domain resource location for transmitting the second message included in the resource pool configuration information, and determines the In the subframe, the frequency domain resource for transmitting the second message is randomly selected in an equal probability manner.
  • the network device sends the first message for paging the second user equipment to the first user equipment in a manner of a dedicated message, where the first message is further used to transmit the second resource.
  • the frequency domain resource location, and the first user equipment after determining that the second user equipment listens to the subframe of the second message in the sidelink, may use the frequency domain resource location carried in the first message in the determined subframe.
  • the frequency domain resource to send a second message to the second user equipment.
  • the network side device When the network device needs to send the first message to the first user equipment, if the first user equipment is in the RRC_IDLE state or the ECM_IDLE state, the network side device first sends a paging message to the first user equipment, so that the first user equipment converts Go to the RRC_CONNECTED state ECM_CONNECTED state. After the first user equipment is in the RRC_CONNECTED state or the ECM_CONNECTED state, the network device sends a first message for paging the second user equipment to the first user equipment in the form of a dedicated message, where the first message is further carried for transmission.
  • the frequency domain resource location of the second resource, and the first user equipment, after determining that the second user equipment listens to the subframe of the second message in the sidelink, can use the frequency domain resource carried in the first message in the determined subframe.
  • the frequency domain resource indicated by the location sends a second message to the second user equipment.
  • the MME when the MME needs to send a paging message to the eRemote UE that has a sidelink connection with the eRelay UE by using the eRelay UE, the MME first determines the status of the eRelay UE, and if it is determined that the eRelay UE is in the RRC_IDLE state or ECM_IDLE The MME sends a paging message to the eRelay UE to trigger the eRelay UE to perform state transition.
  • the MME After the MME determines that the eRelay UE enters the ECM_CONNECTED and RRC_CONNECTED states, the MME sends a paging message for paging the eRemote UE to the base station, and then the base station sends a first message for paging the eRemote UE to the eRelay UE by using dedicated signaling, first.
  • the message carries this The device identifier of the eRemote UE and the location of the frequency domain resource used to send the second message.
  • the eRemote UE After the eRelay UE determines the listening time of the second message, the eRemote UE can send the second message to the eRemote UE by using the frequency domain resource indicated by the frequency domain resource location carried in the first message.
  • the first user equipment When the first user equipment receives the first message sent by the network device for paging the eRemote UE, if it is determined that the first message includes the device identifier of the eRemote UE that has established a sidelink connection with itself, and the first user equipment is in the RRC_IDLE In the state, the first user equipment may trigger an RRC connection setup procedure to transition to the RRC_CONNECTED state. After being transferred to the RRC_CONNECTED state, the first user equipment sends a fifth message to the network device, where the fifth message is used to request to obtain the resource for sending the second message, and after receiving the fifth message, the network device returns the first message to the first user equipment.
  • the sixth message includes a resource information or resource pool information allocated by the network device for the first user equipment to send the second message.
  • the fifth message includes at least one of the following information:
  • the purpose of the request is to indicate that the purpose of the fifth message is to acquire a resource for sending the second message;
  • the time at which the second message is sent may be the frame number and the subframe number used by the first user equipment to send the second message;
  • the number of paging information included in the second message, each second user equipment corresponding to one paging information, each paging information includes a second user equipment identifier and a core network domain information, and the core network domain information is circuit switched. (Circuit Switching, CS) domain or Packet Switching (PS) domain.
  • CS Circuit Switching
  • PS Packet Switching
  • the first The user equipment can transmit a paging message for paging the second user equipment to the second user equipment by using the sidelink.
  • the embodiment of the present application provides a protocol stack, as shown in the figure. 8 is shown.
  • the base station can transmit the first message through the Uu interface of the RRC layer, that is, the base station can send the first message to the eRelay through the Paging Control Channel (PCCH) and the Paging Control Channel (PCH) of the air interface.
  • PCCH Paging Control Channel
  • PCH Paging Control Channel
  • the RRC layer of the eRelay UE After the RRC layer of the eRelay UE receives the first message sent by the base station through the Uu interface, if it is determined that the first message includes the device identifier of the eRemote UE that has established a sidelink connection with itself, the RRC layer of the eRelay UE generates the device including the eRemote UE. The second message is identified and the second message is sent to the RLC layer of PC5. Then, in the transparent transmission mode, the RLC layer of the PC5 does not perform any processing on the second message, and directly sends the second message to the PC5 through the defined Stand-Alone Dedicated Control Channel (SPCCH) for transmitting the second message.
  • SPCCH Stand-Alone Dedicated Control Channel
  • the MAC layer of the PC5 does not perform any processing on the second message, and directly sends the second message to the physical layer (PHY) layer of the PC5 through the transport channel SL-PCH for transmitting the second message.
  • PHY physical layer
  • the PHY layer of the PC5 of the eRemote UE After receiving the second message, the PHY layer of the PC5 of the eRemote UE transmits the second message to the MAC layer of the PC5 through the transport channel SL-PCH for transmitting the second message, and then the MAC layer of the PC5 transmits the message through the SPCCH. Give the RRC layer. If the second message includes the device identifier of the eRemote UE, the RRC layer transmits the device identifier of the eRemote UE to the upper protocol layer.
  • the configuration of the protocol stack shown in FIG. 8 can also be implemented as the configuration shown in FIG. 9.
  • Another embodiment of the present application also provides another protocol stack, as shown in FIG.
  • the base station may transmit the first message through the Uu interface of the PDCP layer. Specifically, the base station may send a dedicated message to the eRelay UE through the DCCH and the DCH of the air interface: an RRC connection reconfiguration message, and an RRC connection reconfiguration message. Contains the first message.
  • the process of transmitting the message by the subsequent eRelay UE and the eRemote UE is the same as that in the embodiment corresponding to FIG. 8, and details are not described herein again.
  • the configuration of the protocol stack shown in FIG. 10 can also be replaced with the configuration shown in FIG.
  • the second message generated by the first user equipment by using the RRC layer is applicable to any short-distance connection technology, that is, the first user equipment and the second user equipment may not only be transmitted through the sidelink.
  • the second message may also be used to transmit the second message by means of a Wireless Local Area Networks (WLAN) or the like.
  • WLAN Wireless Local Area Networks
  • the solution provided by the embodiment of the present invention is mainly introduced from the perspectives of the first user equipment and the second user equipment. It can be understood that the first user equipment and the second user equipment comprise corresponding hardware structures and/or software modules for performing the respective functions.
  • the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.
  • the embodiment of the present application may perform the division of the function modules on the first user equipment and the second user equipment according to the foregoing method example.
  • each function module may be divided according to each function, or two or more functions may be integrated in the In a processing module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and may be further divided in actual implementation.
  • FIG. 12 is a schematic diagram showing a possible structure of a first user equipment (eRelay UE) involved in the foregoing embodiment.
  • the first user equipment includes: a receiving module 121, which generates The module 122, the determining module 123, the obtaining module 124, the sending module 125, and the converting module 126.
  • the receiving module 121 is configured to support the first user equipment to receive the first message sent by the network device in step 301 in FIG. 3, and the third message sent by the second user equipment in step 401 in FIG. 4; the generating module 122, The first user equipment is configured to perform step 302 in FIG. 3; the determining module 123 is configured to support the first user equipment to perform step 304 in FIG. 3; and the obtaining module 124 is configured to support the first user equipment to perform the method in FIG. Step 305:
  • the sending module 125 is configured to support the first user equipment to perform step 306 in FIG. 3, and step 402 in FIG. 4; the converting module 126 is configured to support the first user equipment to trigger the RRC establishment process, and switch to the RRC_CONNRECTED state. .
  • the generating module 122, the determining module 123, the obtaining module 124, and the converting module 126 shown in FIG. 12 can be integrated into the processor 1022 shown in FIG. 2 to make the processor 1022.
  • the execution module 122, the determination module 123, the acquisition module 124, and the specific function of the conversion module 126, the receiving module 121 and the sending module 125 can be integrated into the communication interface 1021 shown in FIG. 2, so that the communication interface 1021 executes the receiving module 121 and transmits The specific function of module 125.
  • FIG. 13 is a schematic diagram showing a possible structure of a second user equipment (eRemote UE) involved in the foregoing embodiment.
  • the second user equipment includes: a determining module 131, a listening module 132, a sending module 133, and a receiving module 134.
  • the determining module 131 is configured to support the second user equipment to perform step 305 in FIG. 3; the listening module 132 is configured to support the second user equipment to perform step 307 in FIG. 3; and the sending module 133 is configured to support the second user.
  • the device performs step 401 in FIG. 4; the receiving module 134 is configured to support the second user equipment to perform the second message sent by the first user equipment in step 306 in FIG. 3, and the seventh message sent by the first user equipment in FIG. .
  • the determining module 131 shown in FIG. 13 can be integrated into the processor 1032 shown in FIG. 2, so that the processor 1032 executes the determining module 131, and the listening module 132.
  • the specific function, the sending module 133, the receiving module 134 can be integrated in the communication interface 1031 shown in FIG. 2, so that the communication interface 1031 executes the sending module 133, and receives the specific function of the module 134.
  • the embodiment of the present application further provides a data transmission system, which may include the first user equipment, the second user equipment, and the network equipment described in any of the foregoing embodiments.
  • Embodiments of the present application also provide a computer storage medium for storing computer software instructions for use by the first user device, including a program designed to perform the steps performed by the first user device in the above embodiments.
  • the application example provides a computer storage medium for storing computer software instructions used by the second user equipment, which includes steps for executing the first user equipment in the foregoing embodiment.
  • the steps of a method or algorithm described in connection with the present disclosure may be implemented in a hardware, or may be implemented by a processor executing software instructions.
  • the software instructions may be composed of corresponding software modules, which may be stored in a random access memory (RAM), a flash memory, a read only memory (ROM), an erasable programmable read only memory ( Erasable Programmable ROM (EPROM), electrically erasable programmable read only memory (EEPROM), registers, hard disk, removable hard disk, compact disk read only (CD-ROM) or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the processor and the storage medium can be located in an ASIC. Additionally, the ASIC can be located in a core network interface device.
  • the processor and the storage medium may also exist as discrete components in the core network interface device.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network devices. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each functional unit may exist independently, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the present application can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation. .
  • the technical solution of the present application which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
  • a hard disk or optical disk, etc. includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present application.

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Abstract

本申请公开一种传输寻呼消息的方法及装置,涉及通信技术领域,可以解决在eRemote UE处于基站的覆盖范围之外的情况下,无法接收基站发送的寻呼消息的问题。本申请通过第一用户设备接收网络设备发送的第一消息,第一消息用于寻呼第二用户设备,第一消息中至少包括第二用户设备的寻呼信息,第一用户设备根据第一消息生成第二消息,第二消息用于寻呼第二用户设备,第二消息中包含第二用户设备的寻呼信息,然后第一用户设备确定第二用户设备监听第二消息的监听时间,并获取用于发送第二消息的资源,进而在所述监听时间,使用用于发送第二消息的资源向所述第二用户设备发送第二消息。本申请提供的方案适于传输寻呼消息时采用。

Description

一种传输寻呼消息的方法及装置
本申请要求于2017年01月25日提交中国专利局、申请号为201710061368.2、发明名称为“一种传输寻呼消息的方法”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及无线通信技术领域,尤其涉及一种传输寻呼消息的方法及装置。
背景技术
目前,用户设备(User Equipment,UE)与基站之间存在两种通信方式,分别为直连接通信方式和非直连接通信方式。其中,直连接通信方式是指UE直接与基站连接,并进行通信。非直连接通信方式是指,远端用户设备(Remote User Equipment,Remote UE)通过中继用户设备(Relay User Equipment,Relay UE)与基站连接,Relay UE可以通过网络协议(Internet Protocol,IP)层(层三)实现基站与Remote UE之间的数据转发。然而在Relay UE转发数据的过程中,Remote UE的分组数据汇聚协议(Packet Data Convergence Protocol,PDCP)层可以解出Remote UE的数据,使得Remote UE的数据存在安全隐患等问题。为了解决这些问题,Relay UE可以通过基于无线链路控制(Radio Link Control,RLC)层以上,PDCP层以下的数据中继方式来转发数据,在这种情况下,远端用户设备可以称为演进型远端用户设备(Evolved Remote UE,eRemote UE),中继用户设备可以称为演进型中继用户设备(Evolved Relay UE,eRelay UE)。
其中,eRemote UE可以通过与基站之间的直连链路来接收基站发送的系统消息、寻呼消息等控制消息,通过与eRelay UE之间的侧行链路(sidelink)来与基站进行数据面数据的传输。当核心网需要向处于RRC_IDLE状态的eRemote UE发送数据时,需要通过基站来向eRemote UE发送寻呼消息来触发eRemote UE进入RRC_CONNECTED状态,eRemote UE只需在一个寻呼周期内醒来一次,基站会在eRemote UE醒来的时间点通过下行控制信道(Physical Downlink Control Channel,PDCCH)向eRemote UE发送寻呼消息。
然而,如果eRemote UE处于基站的覆盖范围之外,就无法接受到基站通过PDCCH发送的寻呼消息,导致基站无法与eRemote UE建立通信连接。
发明内容
本申请的实施例提供一种传输寻呼消息的方法及装置,可以解决在eRemote UE处于基站的覆盖范围之外的情况下,无法接收基站发送的寻呼消息的问题。
为达到上述目的,本申请的实施例采用如下技术方案:
第一方面,本申请的实施例提供一种传输寻呼消息的方法,该方法包括:
第一用户设备接收网络设备发送的第一消息,第一消息用于寻呼第二用户设备,第一消息中至少包括第二用户设备的寻呼信息。然后第一用户设备根据第一消息生成第二消息,第二消息用于寻呼第二用户设备,第二消息中包含第二用户设备的寻呼信息。然后第一用户设备确定第二用户设备监听所述第二消息的监听时间并获取用于发送所述第二消息的资源,进而第一用户设备就可以在所述监听时间,使用所述用于发送所述第二消息的资源向第二用户设备发送所述第二消息。
其中,第二用户设备的寻呼信息包含第二用户设备标识以及核心网域信息。第一用户设备可以为eRemote UE,第二用户设备可以为eRemote UE,网络设备可以为基站,第二用户设备标识可以为第二用户设备的IMSI、S-TMSI、IMSI mod 1024,或者为其他可以代表第二用户设备身份的标识。
由于基站可以先将第一消息发送给第一用户设备,进而第一用户设备确定第二用户设备监听第二消息的监听时间,第一用户设备即可在监听时间将用于寻呼第二用户设备的第二消息发送给第二用户设备,由于第一用户设备一般都在基站的覆盖范围内,所以即使第二用户设备未在基站的覆盖范围内,也能够通过第一用户设备接收到寻呼消息。
在一种可能的设计中,在第一用户设备确定监听时间之前,需先获取用于确定监听时间的信息,获取用于确定监听时间的信息的方法为:
第一用户设备接收述第二用户设备发送的第三消息,第三消息中携带用于确定监听时间的信息;或者,第一用户设备接收网络设备发送的第四消息,第四消息中携带用于确定监听时间的信息。
可见,在第一用户设备确定监听时间之前,第二用户设备或者网络设备会将用于确定监听时间的信息发送给第一用户设备,进而第一用户设备就可以确定第二用户设备的监听时间,使得第一用户设备发送第二消息的时间与第二用户设备监听第二消息的时间相同,进而即使第二用户设备未在基站的覆盖范围内也可接收到寻呼消息,且相比于基站通过下行链路向第二用户设备传输寻呼消息,第一用户设备通过sidelink向第二用户设备传输寻呼消息所消耗的功率更低。
在一种可能的设计中,第二用户设备或者网络设备向第一用户设备发送的用于确定监听时间的信息包括第二用户设备标识,第二用户设备的特定寻呼周期,系统默认寻呼周期中的至少一项。
在一种可能的设计中,在确定监听时间之前,第一用户设备需要确定用于确定监听时间的第一标识,还需要确定用于确定所述监听时间的第一寻呼周期。
其中,第一标识为第一用户设备标识或者第二用户设备标识,第一用户设备和第二用户设备用于确定监听时间的第一标识相同,即若第一用户设备所采用的第一标识为第一用户设备标识,则第二用户设备所采用的第一标识也为第一用户设备标识;若第一用户设备所采用的第一标识为第二用户设备标识,则第二用户设备所采用的第一标识也为第二用户设备标识。
第一寻呼周期为所述特定寻呼周期,或者为所述特定寻呼周期和所述系统默认寻呼周期中较小的一个。其中,特定寻呼周期为第二用户设备eRemote UE的UE-specific Paging cycle,系统默认寻呼周期为基站广播的default Paging cycle。第一用户设备和第二用户设备在确定监听时间时采用的是相同的第一寻呼周期。
如此,第一用户设备确定了用于确定监听时间的第一标识和用于确定监听时间的第一寻呼周期之后,就可以根据结合第一标识和第一寻呼周期来进一步完成确定监听时间的过程,进而保证了第一用户设备可以在sidelink上向第二用户设备发送第二消息,且第二用户设备可以在sidelink上接收到第二消息。
在一种可能的设计中,在第一用户设备确定监听时间之前,第一用户设备还可以接收网络设备配置的用于传输所述第二消息的资源池配置信息,所述资源池配置信息包括以下信息中的至少一种:
资源池偏移量;
资源池周期长度;
用于指示传输所述第二消息的子帧的位图bitmap;
用于传输所述第二消息的频域资源位置。
在一种可能的设计中,第一用户设备确定第二用户设备监听所述第二消息的监听时间,具体可以实现为:
第一用户设备根据第一标识、第一寻呼周期以及nB确定第二用户设备在侧行链路sidelink监听的无线帧的位置和子帧的位置,所述nB为一个寻呼周期内包含的子帧数量。
如此,第一用户设备确定第二用户监听的无线帧位置和子帧位置后,即可在确定的无线帧和子帧上发送第二消息,这样第二用户设备就无需一直监听sidelink,只需在需要监听第二消息时醒来就可以接收到第二消息。
在一种可能的设计中,第一用户设备根据第一标识、第一寻呼周期以及nB确定第二用户设备在侧行链路sidelink监听的无线帧的位置和子帧的位置,具体可以实现为:
第一用户设备根据第一标识、第一寻呼周期以及nB确定第二用户设备监听下行链路时监听的无线帧的位置和子帧的位置,然后第一用户设备根据第二用户设备监听下行链路时监听的无线帧和子帧的位置,确定第二用户设备 在侧行链路sidelink监听的无线帧的位置和子帧的位置。
在一种可能的设计中,第一用户设备可以根据以下公式来确定第一用户设备监听下行链路时监听的无线帧的位置和子帧的位置。
公式1:SFN mod T=(T div N)*(UE_ID mod N)
公式2:i_s=floor(UE_ID/N)mod Ns
其中,SFN为子帧的位置;T为第一寻呼周期;N为min(T,nB),用于表示一个第一寻呼周期中包含的无线帧的数量;Ns:max(1,nB/T),用于表示一个无线帧中包含的子帧数量;UE_ID为第一标识。
通过公式1求得SFN就可以确定第二用户设备监听下行链路时监听的无线帧的位置,根据公式2可以求得i_s,进而根据i_s的取值与NS的取值与子帧位置的对应关系表,就可以确定第二用户设备监听下行链路时监听的无线帧的位置。其中,FDD系统和TDD系统对应的i_s的取值与NS的取值与子帧位置的对应关系表不同。
在一种可能的设计中,第二用户设备在sidelink监听的子帧的位置为第二用户设备监听下行链路时监听的子帧位置加第一偏移量,第一偏移量为大于或等于0的正整数;或者,第二用户设备在sidelink监听的子帧的位置为第二用户设备监听下行链路时监听的子帧的位置加第二偏移量后所述资源池中第一个可用于传输所述第二消息的子帧,所述第二偏移量为大于或等于0的正整数。
在一种可能的设计中,对于FDD系统,第二用户设备在监听下行链路时监听的无线帧的位置和子帧的位置,与第二用户设备在sidelink监听的无线帧位置和子帧位置相同;
对于TDD系统,第二用户设备在监听下行链路时监听的无线帧的位置,与第二用户设备在sidelink监听的无线帧位置相同。根据不同的TDD配置,第二用户设备在监听下行链路时监听的子帧的位置,与第二用户设备在sidelink监听的子帧的位置之间有不同的对应关系。
其中一种可能的对应关系为:当第二终端需要在下行链路中监听的子帧编号0时,从TDD配置0至TDD配置6对应的所述第二终端需要在sidelink中监听的子帧编号为2;
当第二终端需要在下行链路中监听的子帧编号为1时,从TDD配置0至TDD配置6对应的第二终端需要在sidelink中监听的子帧编号分别为:3、3、2、3、3、2、3;
当所述第二终端需要在下行链路中监听的子帧编号为5时,从TDD配置0至TDD配置6对应的所述第二终端需要在sidelink中监听的子帧编号分别为:7、7、7、2、2、2、7;
当所述第二终端需要在下行链路中监听的子帧编号为6时,从TDD配置 0至TDD配置6对应的所述第二终端需要在sidelink中监听的子帧编号分别为:8、8、7、3、3、2、8。
在一种可能的设计中,第一用户设备确定第二用户设备监听第二消息的监听时间,具体包括:
第一用户设备根据资源池配置信息和第一标识、第一寻呼周期,确定第二用户设备的一个第一寻呼周期内包含的资源池周期数量N,以及在每个资源池周期中用于发送第二消息的子帧数量M,然后第一用户设备确定在一个第一寻呼周期内,第二用户设备需要监听第二消息的资源池周期编号,资源池周期编号为所述第一标识mod N。然后第一用户设备确定在一个资源池周期内,第二用户设备需要监听第二消息的子帧编号,所述子帧编号为floor(第一标识/N)mod M,进而第一用户设备可以根据所述资源池周期编号和所述子帧编号确定第二用户设备在sidelink监听的子帧位置。
在一种可能的设计中,第一用户设备确定第二用户设备监听第二消息的监听时间,具体可以实现为:第一用户设备根据第一标识和第一寻呼周期确定第三偏移量PO_offset,然后第一用户设备根据[帧号*10+子帧号+SL_offset]modulo(第一寻呼周期)=PO_offset确定第二用户设备在sidelink监听第二消息的帧号和子帧号,其中,SL_offset为所述资源池偏移量。
在一种可能的设计中,若第一用户设备处于RRC_IDLE状态,则在第一用户设备接收网络设备发送的第一消息之后,第一用户设备可以触发RRC连接建立过程,转换至RRC_CONNRECTED状态。在第一用户设备转换至RRC_CONNRECTED状态之后,第一用户设备与基站之间就可以通过专用消息进行通信,使得第一用户设备可以向基站请求获取用于发送第二消息的资源,或者基站主动通过专用消息向第一用户设备发送用于发送第二消息的资源,进而使得第一用户设备能够使用基站提供的资源来通过sidelink发送第二消息。
在一种可能的设计中,当网络设备需要向第一用户设备发送第一消息时,若第一用户设备处于RRC_IDLE状态,则网络设备触发第一用户设备的RRC连接建立过程,使第一用户设备转换至RRC_CONNRECTED状态。在第一用户设备转换至RRC_CONNRECTED状态之后,第一用户设备与基站之间就可以通过专用消息进行通信,使得第一用户设备可以向基站请求获取用于发送第二消息的资源,或者基站主动通过专用消息向第一用户设备发送用于发送第二消息的资源,进而使得第一用户设备能够使用基站提供的资源来通过sidelink发送第二消息。
在一种可能的设计中,第一用户设备获取用于发送第二消息的资源,具 体可以实现为:第一用户设备向网络设备发送第五消息,第五消息用于请求获取发送所述第二消息的资源;
第一用户设备接收所述网络设备发送的第六消息,第六消息包含网络设备为第一用户设备分配的用于发送第二消息的资源信息或者资源池信息。
在一种可能的设计中,第五消息包括下述信息中的至少一种:
请求目的,所述请求目的用于指示所述第五消息的目的为获取用于发送第二消息的资源;
发送第二消息的时间;
第二消息中包含的寻呼信息的数量,每个第二用户设备对应一个寻呼信息;
第二消息中包含的比特数。
其中,每组寻呼信息中包含一个第二用设备标识和一个核心网域信息,核心网域信息为CS域或PS域。
在一种可能的设计中,第一用户设备获取用于发送第二消息的资源,具体还可以实现为:
第一用户设备从第一消息中获取用于发送第二消息的资源,第一消息中包含网络设备为第一用户设备分配的用于发送第二消息的资源信息或者资源池信息。
在一种可能的设计中,第一用户设备还可以通过无线资源控制层接收第一消息,并由无线资源控制层根据第一消息生成所述第二消息。
第一用户设备通过无线资源控制层生成的第二消息可以适用于任一种短距离连接技术,不仅仅限制于sidelink连接,还可以为WLAN连接等,扩展了本申请提供的传输寻呼消息的方法的应用范围。
第二方面,本申请的实施例提供一种传输寻呼消息的方法,该方法包括:
第二用户设备确定监听第二消息的监听时间,第二消息用于寻呼第二用户设备,第二消息中包含所述第二用户设备的寻呼信息,然后第二用户设备在监听时间监听第一用户设备发送的第二消息,当监听到第二消息时,接收第二消息。
其中,第二用户设备的寻呼信息包含第二用户设备标识以及核心网域信息。第一用户设备可以为eRemote UE,第二用户设备可以为eRemote UE,网络设备可以为基站,第二用户设备标识可以为第二用户设备的IMSI、S-TMSI、IMSI mod 1024,或者为其他可以代表第二用户设备身份的标识。
可见,第二用户设备可以先确定监听第二消息的监听时间,且可以在监听时间监听到第一用户设备发送的第二消息,相当于第一用户设备可以通过sidelink来传输寻呼消息,这样即使第二用户设备未处于基站的覆盖范围内也 可以通过sidelink来接收第二消息。另外,相比于通过基站与第二用户设备之间的下行链路来传输第二消息,通过第一用户设备与第二用户设备之间的sidelink来传输第二消息的过程所消耗的功率更小。
在一种可能的设计中,在第二用户设备确定监听第二消息的监听时间之前,需先获取用于确定监听时间的信息,获取用于确定监听时间的信息的方法为:
第二用户设备还需向第一用户设备发送第三消息,第三消息中携带第二用户设备的特定寻呼周期,然后第二用户设备接收第一用户设备发送的第七消息,所述第七消息中携带用于确定所述监听时间的信息。
可见,在第一用户设备确定监听时间之前,第一用户可以接收到第二用户设备发送的用于确定监听时间的信息,进而第二用户设备就可以确定第二用户设备的监听时间,使得第一用户设备发送第二消息的时间与第二用户设备监听第二消息的时间相同,进而即使第二用户设备未在基站的覆盖范围内也可接收到寻呼消息,且相比于基站通过下行链路向第二用户设备传输寻呼消息,第一用户设备通过sidelink向第二用户设备传输寻呼消息所消耗的功率更低。
在一种可能的设计中,用于确定监听时间的信息包括第一用户设备标识,nB以及网络设备广播的系统默认寻呼周期中的至少一个,nB为一个寻呼周期内包含的子帧数量;或者,
用于确定监听时间的信息为网络设备配置的用于传输第二消息的资源池配置信息,资源池配置信息包括以下信息中的至少一种:
资源池偏移量;
资源池周期长度;
用于指示传输所述第二消息的子帧的位图bitmap;
用于传输所述第二消息的频域资源位置。
在第一用户设备获取到用于传输第二消息的资源池配置信息之后,既可以通过资源池配置信息确定第二用户设备监听第二消息的监听时间,又可以确定用于发送第二消息的资源,进而第一用户设备就可以在确定出的监听时间,使用用于发送第二消息的资源来向第二用户设备发送第二消息,可以实现第一用户设备和第二用户设备使用sidelink传输寻呼消息。
在一种可能的设计中,第二用户设备确定用于确定监听时间的第一标识,还需要确定用于确定监听时间的第一寻呼周期。第一标识为第一用户设备标识或者第二用户设备标识,第一用户设备和第二用户设备用于确定监听时间的第一标识相同。第一寻呼周期为特定寻呼周期,或者为特定寻呼周期和系统默认寻呼周期中较小的一个。其中,特定寻呼周期为第二用户设备eRemote UE的UE-specific Paging cycle,系统默认寻呼周期为基站广播的default  Paging cycle。第一用户设备和第二用户设备在确定监听时间时采用的是相同的第一寻呼周期。
如此,第二用户设备确定了用于确定监听时间的第一标识和用于确定监听时间的第一寻呼周期之后,就可以根据结合第一标识和第一寻呼周期来进一步完成确定监听时间的过程,进而即可在监听时间监听sidelink,从而接收到第二用户设备在监听时间通过sidelink发送的第二消息。
在一种可能的设计中,第二用户设备确定监听第二消息的监听时间,具体可以实现为:
第二用户设备根据第一标识、第一寻呼周期以及nB确定第二用户设备在侧行链路sidelink监听的子帧的位置。
在一种可能的设计中,第二用户设备根据第一标识、第一寻呼周期以及nB确定第二用户设备在侧行链路sidelink监听的子帧的位置,具体可以实现为:
第二用户设备根据第一标识、第一寻呼周期以及nB确定第二用户设备监听下行链路时监听的无线帧的位置和子帧的位置,然后第二用户设备根据第二用户设备监听下行链路时监听的无线帧和子帧的位置,确定第二用户设备在sidelink监听的无线帧和子帧的位置。
如此,在第二用户设备确定监听第二消息的监听时间后,就无需一直监听sidelink,只需在监听时间醒来就可以监听到第二消息。
在一种可能的设计中,第二用户设备可以根据以下公式来确定第一用户设备监听下行链路时监听的无线帧的位置和子帧的位置。
公式1:SFN mod T=(T div N)*(UE_ID mod N)
公式2:i_s=floor(UE_ID/N)mod Ns
其中,SFN为子帧的位置;T为第一寻呼周期;N为min(T,nB),用于表示一个第一寻呼周期中包含的无线帧的数量;Ns:max(1,nB/T),用于表示一个无线帧中包含的子帧数量;UE_ID为第一标识。
通过公式1求得SFN就可以确定第二用户设备监听下行链路时监听的无线帧的位置,根据公式2可以求得i_s,进而根据i_s的取值与NS的取值与子帧位置的对应关系表,就可以确定第二用户设备监听下行链路时监听的无线帧的位置。其中,FDD系统和TDD系统对应的i_s的取值与NS的取值与子帧位置的对应关系表不同。
在一种可能的设计中,第二用户设备在sidelink监听的子帧的位置为第二用户设备监听下行链路时监听的子帧位置加第一偏移量,第一偏移量为大于等于0的正整数;或者,
第二用户设备在sidelink监听的子帧的位置为第二用户设备监听下行链 路时监听的子帧的位置加第二偏移量后资源池中第一个可用于传输第二消息的子帧,第二偏移量为大于等于0的正整数。
在一种可能的设计中,第二用户设备确定监听第二消息的监听时间,具体可以实现为:
第二用户设备根据资源池配置信息和第一标识、第一寻呼周期,确定第二用户设备的一个第一寻呼周期内包含的资源池周期数量N,以及在每个资源池周期中用于发送所述第二消息的子帧数量M。然后,第二用户设备确定在一个第一寻呼周期内,第二用户设备需要监听第二消息的资源池周期编号,资源池周期编号为所述第一标识mod N,进而第二用户设备确定在一个资源池周期内,第二用户设备需要监听第二消息的子帧编号,子帧编号为floor(第一标识/N)mod M,进而第二用户设备即可根据资源池周期编号和子帧编号确定第二用户设备在sidelink监听的子帧位置。
在一种可能的设计中,第二用户设备确定监听第二消息的监听时间,具体还可以实现为:
第二用户设备根据第一标识和第一寻呼周期确定第三偏移量PO_offset,然后根据[帧号*10+子帧号+SL_offset]modulo(第一寻呼周期)=PO_offset确定第二用户设备在sidelink监听所述第二消息的帧号和子帧号,其中,SL_offset为资源池偏移量。
第三方面,本申请提供了一种传输寻呼消息的装置,该装置可以实现上述第一方面中第一用户设备所执行的功能,所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个上述功能相应的模块。
在一种可能的设计中,该装置的结构中包括处理器和通信接口,该处理器被配置为支持该装置执行上述方法中相应的功能。该通信接口用于支持该装置与其他网元之间的通信。该装置还可以包括存储器,该存储器用于与处理器耦合,其保存该装置必要的程序指令和数据。
第四方面,本申请提供了一种传输寻呼消息的装置,该装置可以实现上述第二方面中第二用户设备所执行的功能,所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个上述功能相应的模块。
在一种可能的设计中,该装置的结构中包括处理器和通信接口,该处理器被配置为支持该装置执行上述方法中相应的功能。该通信接口用于支持该装置与其他网元之间的通信。该装置还可以包括存储器,该存储器用于与处理器耦合,其保存该装置必要的程序指令和数据。
第五方面,本申请提供一种传输寻呼消息的系统,包括上述方面所述的第一用户设备、第二用户设备及网络设备。
第六方面,本申请提供了一种计算机存储介质,用于储存为上述第一用户设备所用的计算机软件指令,其包含用于执行上述方面所设计的程序。
第七方面,本申请例提供了一种计算机存储介质,用于储存为上述第二用户设备端所用的计算机软件指令,其包含用于执行上述方面所设计的程序。
相比于现有技术中基站直接向第二用户设备发送寻呼消息,当第二用户设备未在基站的信号覆盖范围之内,会无法接收到寻呼消息相比,本申请中,基站可以先将第一消息发送给第一用户设备,进而第一用户设备和第二用户设备确定第二用户设备监听第二消息的监听时间,第一用户设备即可在监听时间将用于寻呼第二用户设备的第二消息发送给第二用户设备,由于第一用户设备一般都在基站的覆盖范围内,所以即使第二用户设备未在基站的覆盖范围内,也能够通过第一用户设备接收到寻呼消息。
附图说明
为了更清楚地说明本申请或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍。
图1为本申请的实施例提供的一种网络结构的结构示意图;
图2为本申请的实施例提供的另一种网络结构的逻辑结构示意图;
图3为本申请的实施例提供的一种传输寻呼消息的方法的流程图;
图4为本申请的实施例提供的另一种传输寻呼消息的方法的流程图;
图5为本申请的实施例提供的一种传输寻呼消息的方法的示例性示意图;
图6为本申请的实施例提供的另一种传输寻呼消息的方法的示例性示意图;
图7为本申请的实施例提供的另一种传输寻呼消息的方法的示例性示意图;
图8为本申请的实施例提供的另一种传输寻呼消息的方法的示意图;
图9为本申请的实施例提供的另一种传输寻呼消息的方法的示意图;
图10为本申请的实施例提供的另一种传输寻呼消息的方法的示意图;
图11为本申请的实施例提供的另一种传输寻呼消息的方法的示意图;
图12为本申请的实施例提供的一种传输寻呼消息的装置的逻辑结构示意图;
图13为本申请的实施例提供的另一种传输寻呼消息的装置的逻辑结构示意图。
具体实施方式
本申请描述的系统架构以及业务场景是为了更加清楚的说明本申请的技术方案,并不构成对于本申请提供的技术方案的限定,本领域普通技术人员可知,随着系统架构的演变和新业务场景的出现,本申请提供的技术方案对于类似的技术问题,同样适用。
需要说明的是,本申请中,“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请中被描述为“示例性的”或者“例如”的任何实施例或设计方 案不应被解释为比其他实施例或设计方案更优选或更具优势。确切而言,使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
用户设备(User Equipment,UE),又称之为终端,是一种向用户提供语音和/或数据连通性的设备,例如,具有无线连接功能的手持式设备、车载设备等。常见的用户设备例如包括:手机、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device,MID)、可穿戴设备,例如智能手表、智能手环、计步器等。
基站,又称为无线接入网(Radio Access Network,RAN)设备是一种将用户设备接入到无线网络的设备,包括但不限于:演进型节点B(evolved Node B,eNB)、无线网络控制器(radio network controller,RNC)、节点B(Node B,NB)、基站控制器(Base Station Controller,BSC)、基站收发台(Base Transceiver Station,BTS)、家庭基站(例如,Home evolved NodeB,或Home Node B,HNB)、基带单元(BaseBand Unit,BBU),未来网络,如5G网络(如应用新无线(new radio)技术的网络)中的继续演进的节点B(gNB)。此外,还可以包括Wifi接入点(Access Point,AP),收发节点(transmission&reception point,TRP)等。
本申请的说明书和权利要求书中的术语“第一”和“第二”等是用于区别不同的对象,而不是用于描述对象的特定顺序。例如,本申请中的第一用户设备可以为eRelay UE,第二用户设备可以为eRemote UE。
本申请的原理为:基站通过下行链路将需要发送给eRemote UE的寻呼消息发送给eRelay UE,进而由eRelay UE将通过sidelink将寻呼消息发送给eRemote UE(以下将eRelay UE向eRemote UE通过sidelink发送的寻呼消息称为SL寻呼消息)。eRelay UE向eRemote UE发送SL寻呼消息的方法为:eRelay UE通过eRemote UE的标识和UE-specific Paging cycle确定eRemote UE监听寻呼消息的监听时间,并获取基站分配的用于发送SL寻呼消息的资源,进而eRelay UE在监听时间上,使用基站分配的资源向eRemote UE发送寻呼消息。eRemote UE也会通过与eRelay UE进行通信,从而确定监听时间,并监听eRelay UE发送的SL寻呼消息。采用这种方法就无需基站直接向eRemote UE发送寻呼消息,即使eRemote UE未处于基站的覆盖范围内,也能够通过eRelay UE接收到寻呼消息。
在详细描述本申请的技术方案之前,为了便于理解,先对本申请的实施例所应用的场景进行介绍。如图1所示,本申请提供的传输寻呼消息的方法可以应用于图1所示的网络架构中。该网络架构中包含:基站101,处于基站101覆盖范围内的eRelay UE102,以及与eRelay UE102存在sidelink连接的多个eRemote UE103。其中,eRemote UE103具有体积小、功耗低等特点,一般为可穿戴设备,例如:智能手表、智能手等。基站101和eRelay UE102之间可以通过上行链路和下行链路进行通信。eRelay UE102和eRemote UE103之间可以通过sidelink通信技术进行通信,eRelay UE102和eRemote UE103之间的通信链路可称为sidelink,另外,eRelay UE102和eRemote UE103之间 也可以通过non-3GPP接入技术进行通信,例如蓝牙接入技术、WALN接入技术等,本申请对此不作限定,以下均以eRelay UE102和eRemote UE103之间通过sidelink通信为例进行说明。需要说明的是,图1仅为本申请所应用的网络架构的示意图,在实际部署过程中,网络结构中设备的数量不限于图1中所示出的设备数量。
具体如图2所示,基站101可以包括:通信接口1011、处理器1012、存储器1013以及至少一个通信总线1014,通信总线101用于实现这些装置之间的连接和相互通信;eRelay UE102可以包括:通信接口1021、处理器1022、存储器1023以及至少一个通信总线1024,通信总线1024用于实现这些装置之间的连接和相互通信;eRemote UE103可以包括:通信接口1031、处理器1032、存储器1033以及至少一个通信总线1034,通信总线1034用于实现这些装置之间的连接和相互通信。
其中,通信接口1011、通信接口1021、通信接口1031,可以由天线来实现,可用于与外部网元之间进行数据交互,如:基站101的通信接口1011可收发与eRelay UE102间的数据包或其他信息,且基站101的通信接口1011还可收发与eRemote UE103间的数据包或其他信息(图2中省略了通信接口1011与通信接口1031之间的连接关系);eRelay UE102的通信接口1021可收发与基站101间或eRemote UE103之间的数据包或其他信息。例如:通信接口1031可以将eRemote UE103的数据以及其他信息发送至通信接口1021,通信接口1021接收到数据或其他信息后,通过eRelay UE102与基站间的无线承载将数据或其他信息发送至通信接口1011,交由基站101处理。
处理器1012、处理器1022、处理器1032,可能是中央处理器(英文:Central Processing Unit,CPU),也可以是特定集成电路(英文:Application Specific Integrated Circuit,ASIC),或者是被配置成实施本发明实施例的一个或多个集成电路。例如:一个或多个微处理器(英文:Digital Singnal Processor,DSP),或,一个或者多个现场可编程门阵列(英文:Field Programmable Gate Array,FPGA)。处理器1012、处理器1022、处理器1032具有处理管理功能,具体的,基站101中的处理器1012可以对接收到的eRelay UE102发送的数据或信息进行处理,eRelay UE102中的处理器1022可以对接收到的eRemote UE0103发送的数据或信息进行处理,还可以对基站101发送的数据或信息进行处理。eRemote UE103中的处理器1032可以对Remote UE103自身产生的数据或信息进行处理、或者对其他设备发送的信息或数据进行处理。
存储器1013、存储器1023、存储器1033,可以是易失性存储器(volatile memory),例如随机存取存储器(英文:Random-Access Memory,RAM);或者非易失性存储器(non-volatile memory)。例如只读存储器(英文:Read-Only Memory,ROM),快闪存储器(flash memory),硬盘(hard disk drive,HDD)或固态硬盘(英文:Solid-State Drive,SSD);或者上述种类的存储器的组合。具体的,存储器1013、存储器1023、存储器1033内可以 存储支持本发明实施例所述的数据传输方法的数据或程序代码,以便处理器1012、处理器1022、处理器1032根据自身所处设备中存储器内存储的数据或程序代码执行本发明实施例提供的数据传输方法。
通信总线1014、通信总线1024、通信总线1034可以分为地址总线、数据总线、控制总线等,可以是工业标准体系结构(英文:Industry Standard Architecture,ISA)总线、外部设备互连(英文:Peripheral Component,PCI)总线或扩展工业标准体系结构(英文:Extended Industry Standard Architecture,EISA)总线等。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示,图2中仅用一条粗线表示,但并不表示仅有一根总线或一种类型的总线。
结合图1和图2所示的网络架构,为了解决在eRemote UE处于基站的覆盖范围之外的情况下,无法接收基站发送的寻呼消息的问题,本申请的实施例提供了一种传输寻呼消息的方法,如图3所示,该方法包括:
301、网络设备向第一用户设备发送第一消息,第一消息用于寻呼第二用户设备,第一消息中至少包括第二用户设备的寻呼信息。
其中,第二用户设备的寻呼信息包含第二用户设备标识以及核心网域信息,核心网域信息可以为电路交换(Circuit Switching,CS)域或分组交换(Packet Switching,PS)域。
本步骤中的网络设备可以为基站,本申请实施例中的第一用户设备均可以为eRelay UE,第二用户设备均可以为eRemote UE,本申请实施例中所描述的第二用户设备均为与第一用户设备存在连接(link)的第二用户设备。
当基站需要向处于向处于RRC_IDLE状态的eRemote UE发送数据时,需要向eRemote UE发送寻呼消息,从而触发eRemote UE进入RRC_CONNECTED状态。为了防止不在自身覆盖范围内的eRemote UE无法接收到寻呼消息,基站会将寻呼消息发送给eRelay UE,由eRelay UE进一步将寻呼消息发送给eRemote UE。
具体的,基站发送给eRelay UE的第一消息可以为广播消息,也可以为发送给eRelay UE的专用消息。当第一消息为广播消息时,第一消息中可以包含基站需要发送寻呼消息的多个eRemote UE的寻呼信息,其中既包括与eRelay UE建立了sidelink的eRemote UE的寻呼信息,也包括未与eRelay UE建立sidelink的eRemote UE的寻呼信息;当第一消息为发送给eRelay UE的专用消息时,第一消息中包括基站需要发送寻呼消息的多个eRemote UE的寻呼信息,这些eRemote UE均为与eRelay UE建立了sidelink的eRemote UE。
302、第一用户设备根据第一消息生成第二消息,第二消息用于寻呼第二用户设备,第二寻呼消息中包含第二用户设备的寻呼信息。
其中,如果第一消息为广播消息,则eRelay UE需从第一消息中筛选出与自身存在sidelink的eRemote UE的寻呼信息,并分别为筛选出的每个eRemote UE生成第二消息,对应于每个eRemote UE的第二消息分别包含各自的eRemote UE的寻呼信息。或者eRelay UE生成一个第二消息,所述第二 消息中包含第一消息中携带的所有eRemote UE的寻呼信息。或者,eRelay UE不做任何筛选,直接转发所述第一消息给与自身存在sidelink的至少一个eRemote UE。
如果第一消息为专用消息,则eRelay UE需获取第一消息中的eRemote UE的寻呼信息,并根据第一消息分别为每个eRemote UE生成第二消息,对应于每个eRemote UE的第二消息分别包含各自的eRemote UE的寻呼信息。或者eRelay UE生成一个第二消息,第二消息中包含第一消息中携带的所有eRemote UE的寻呼信息。
示例性地,假设eRelay UE1接收到的第一消息为广播消息,第一消息中携带3个第二用户设备的寻呼信息,这三个第二用户设备分别为eRemote UE1、eRemote UE2、eRemote UE3,其中,eRemote UE1、eRemote UE2分别与eRelay UE1之间存在sidelink连接,eRemote UE3与eRelay UE2之间存在sidelink连接。则eRelay UE1需分别为eRemote UE1和eRemote UE2生成第二消息,eRemote UE1对应的第二消息中包含eRemote UE1的寻呼信息,eRemote UE2对应的第二消息中包含eRemote UE2的寻呼信息。
303、第一用户设备确定第二用户设备监听第二消息的监听时间。
其中,第一用户设备确定监听时间的方法将在后续实施例中进行详细介绍,此处暂不赘述。
304、第一用户设备确定用于发送第二消息的资源。
其中,第一用户设备确定目标资源的方法将在后续实施例中进行详细介绍,此处暂不赘述。
需要说明的是,本申请的实施例不限制步骤302、步骤303和步骤304之间的执行顺序。
305、第二用户设备确定监听第二消息的监听时间。
其中,第二用户设备确定监听时间的方法与第一用户设备确定监听时间的方法相同,只是第二用户设备获取用于确定监听时间的参数的方法与第一用户设备获取用于确定监听时间的信息的方法不同。
需要说明的是,本申请的实施例不限制步骤305与上述步骤302、步骤303和步骤304之间的执行顺序,步骤305只需在步骤306之前执行即可。
306、第一用户设备在监听时间,使用用于发送第二消息的资源向第二用户设备发送第二消息。
307、第二用户设备在所述监听时间监听第一用户设备发送的第二消息。
可以理解的是,第一用户设备和第二用户设备均已确定了第二用户设备监听第二消息的监听时间,进而,第一用户设备在该监听时间发送第二消息,第二用户设备即可在该监听时间监听到第二消息。
308、当监听到第二消息时,第二用户设备接收第二消息。
其中,第二用户设备接收到第二消息之后,还需将自身的设备标识通知给上层协议层,以便于上层协议层触发第二用户设备发起RRC连接建立过程,转换至RRC_CONNECTED状态。
本申请的实施例提供的传输寻呼消息的方法,相比于现有技术中基站直接向第二用户设备发送寻呼消息,当第二用户设备未在基站的信号覆盖范围之内,会无法接收到寻呼消息相比,本申请中,基站可以先将第一消息发送给第一用户设备,进而第一用户设备和第二用户设备确定第二用户设备监听第二消息的监听时间,第一用户设备即可在监听时间将用于寻呼第二用户设备的第二消息发送给第二用户设备,由于第一用户设备一般都在基站的覆盖范围内,所以即使第二用户设备未在基站的覆盖范围内,也能够通过第一用户设备接收到寻呼消息。
另外,eRemote UE直接接收基站发送的寻呼消息消耗的功率较高,而通过eRemote UE与eRelay UE之间的sidelink来接收寻呼消息可以降低消耗的功率。
结合图3所示的方法流程,第一用户设备和第二用户设备都需要先确定第二用户设备监听第二消息的监听时间,进而第一用户设备在所述监听时间通过sidelink向第二用户设备发送第二消息,才能够使得第二用户设备在所述监听时间接收到第二消息。以下将对上述步骤303和步骤305中涉及到的第一用户设备和第二用户设备确定第二用户设备监听第二消息的监听时间的方法进行详细说明。
在第一用户设备和第二用户设备确定所述监听时间之前,需先获取确定监听时间时所需的参数,基于此,在本发明实施例提供的一种实现方式中,描述了获取确定监听时间时所需的参数的方法,如图4所示,该方法包括:
401、第二用户设备向第一用户设备发送第三消息,第三消息中携带用于确定监听时间的信息。
其中,第三消息中用于确定监听时间的信息可包含第二用户设备的特定寻呼周期(即eRemote UE的UE-specific Paging cycle),基站广播的系统默认寻呼周期(default Paging cycle),第二用户设备标识中的至少一项。
需要说明的是,第一用户设备和第二用户设备在确定监听时间时均需使用第一标识,该第一标识可以为第一用户设备标识,也可以为第二用户设备标识,第一用户设备和第二用户设备会事先协商所采用的第一标识为第一用户设备标识还是第二用户设备标识。可以理解的是,当所采用的第一标识为第二用户设备标识时,第三消息中需包含第二用户设备标识。
还需说明的是,第三消息可以为一条新定义的在eRemote UE和eRelay UE之间传输的PC5-S消息。例如,第三消息可以定以为寻呼监控请求消息(Paging Monitoring Request)。另外,第三消息也可以为已有的消息,例如可以为eRemote UE发送的用于建立eRemote UE和eRelay UE间的Sidelink连接的请求消息(Direct_Communicaiton_Request),即eRemote UE在向eRelay UE发送建立sidelink连接的请求消息时,可以在该请求消息中携带上述描述的第三消息中所包含的信息。
402、第一用户设备向第二用户设备发送第七消息。
其中,第一用户设备接收到第三消息之后会向第二用户设备回复第七消息,当第一用户设备和第二用户设备协商的确定监听时间所采用第一标识为第一用户设备标识时,第七消息中需携带第一用户设备标识。
另外,第二用户设备可以通过nB(一个寻呼周期内包含的子帧数量)、网络设备广播的默认寻呼周期以及第一用户设备已知的一些信息来确定监听时间,或者,第一用户设备还可以通过资源池配置信息以及第一用户设备已知的一些信息来确定监听时间。对应的,第七消息中可以携带nB以及网络设备广播的系统默认寻呼周期中的至少一个;或者,
第七消息中可以携带网络设备配置的用于传输第二消息的资源池配置信息,所述资源池配置信息包括以下信息中的至少一种:
资源池偏移量SL_offset,SL_offset用于指示资源池相对于SFN=0的起始位置的信息,SNF为无线帧号;
资源池周期长度;
用于指示传输所述第二消息的子帧的位图bitmap;
用于传输所述第二消息的频域资源位置。
除此之外,第七消息中还可携带第一用户设备为第二用户设备配置的接收第二消息的偏移量PO_offset,PO_offset为第一用户设备根据第二用户设备标识和寻呼周期,为第二用户设备配置的用于确定第二用户设备监听第二消息的子帧位置的偏移量。
还需说明的是,第七消息可以为一条新定义的在eRemote UE和eRemote UE之间传输的PC5-S消息。例如,第七消息可以定以为寻呼监控回复消息(Paging Monitoring Reponse)。另外,第七消息也可以为已有的消息,例如可以为eRelay UE发送的用于建立eRemote UE和eRelay UE间的Sidelink连接的响应消息(Direct_Communicaiton_Reponse),即eRemote UE在向eRelay UE发送建立sidelink连接的响应消息时,可以在该请求消息中携带上述描述的第七消息中所包含的信息。
在另一种可能的实现方式中,上述第七消息还可以为第二用户设备周期性广播的一条消息,该广播消息可以为新定义的在第一用户设备和第二用户设备之间的sidelink上发送的广播消息,也可以为已有的侧行链路主信息块消息(Master Information Block-sidelink),第一用户可通过sidelink接收到该广播消息,进而获取该广播消息中携带的信息。
在另一种可能的实现方式中,第一用户设备还可以从网络设备处来获取第二用户设备标识以及第二用户设备的UE-specific Paging cycle用于确定监听时间的信息,网络侧设备可以向第一用户设备发送第四消息,第四消息中携带第二用户设备的UE-specific Paging cycle用于确定监听时间的信息。
其中,用于确定监听时间的信息包括第二用户设备标识,系统默认寻呼周期,以及第二用户设备的特定寻呼周期中的至少一项。
需要说明的是,基站可以以专用消息的形式单独发送一个携带eRemote UE的UE-specific Paging cycle的第四消息给eRelay UE,也可以在寻呼 eRemote UE时,将eRemote UE的UE-specific Paging cycle发送给eRelay UE,在这种情况下,网络侧设备包括MME和基站,首先MME向基站发送携带eRemote UE的UE-specific Paging cycle的寻呼消息,基站接收到该寻呼消息后,再向eRelay UE发送携带eRemote UE的UE-specific Paging cycle的寻呼消息,此时第四消息可以为图3所示的实施例中描述的第一消息,即第一消息中还可以包括第二用户设备的特定寻呼周期。
基于上述步骤中第一用户设备和第二用户设备各自获取的用于确定监听时间的信息,第一用户设备和第二用户设备就可以确定第二用户设备监听第二消息的监听时间,在确定第二用户设备监听第二消息的监听时间之前,第一用户设备和第二用户设备均需确定用于确定监听时间的第一标识,和用于确定第一监听时间的第一寻呼周期。
其中,第一标识为第一用户设备标识或者第二用户设备标识,即为eRelay UE的设备标识或者eRemote UE的设备标识。设备标识具体可以为用户设备的国际移动用户识别码(International Mobile Subscriber Identity,IMSI)、S-TMSI、IMSI mod 1024,或者为其他可以代表用户设备身份的标识。
第一寻呼周期可以为第二用户设备的特定寻呼周期,或者为第二用户设备的特定寻呼周期和网络设备广播的系统默认寻呼周期中较小的一个,即第一寻呼周期可以为eRemote UE的UE-specific Paging cycle,或者为eRemote UE的UE-specific Paging cycle和基站广播的default Paging cycle中较小的一个。
需要说明的是,第一用户设备和第二用户设备确定的第一标识相同,且第一用户设备和第二用户设备确定的第一寻呼周期也相同,在第一用户设备和第二用户设备确定第一标识和第一寻呼周期之后,即可根据用于确定监听时间的信息来确定监听时间。
其中,第一用户设备和第二用户设备确定监听时间的方法相同,以下以第一用户设备为例进行说明,本申请的实施例提供了以下三种确定监听时间的方法。
方法一:
第一用户设备根据第一标识、第一寻呼周期以及nB确定第二用户设备在sidelink监听的无线帧的位置和子帧的位置。
具体的确定方法为:首先,第一用户设备根据第一标识、第一寻呼周期以及nB确定所述第二用户设备监听下行链路时监听的无线帧的位置和子帧的位置,然后根据第二用户设备监听下行链路时监听的无线帧和子帧的位置,确定第二用户设备在sidelink监听的无线帧的位置和子帧的位置。
具体的,可以根据以下公式来确定eRemote UE在Uu口监听下行链路时监听的无线帧的位置和子帧的位置。
公式1:SFN mod T=(T div N)*(UE_ID mod N)
公式2:i_s=floor(UE_ID/N)mod Ns
其中,SFN为子帧的位置;T为第一寻呼周期;N为min(T,nB),用 于表示一个第一寻呼周期中包含的无线帧的数量;Ns:max(1,nB/T),用于表示一个无线帧中包含的子帧数量;UE_ID为第一标识。
通过上述公式1求得SFN就可以确定eRemote UE监听下行链路时监听的无线帧的位置,根据公式2可以求得i_s,进而根据i_s结合表1或表2即可确定eRemote UE监听下行链路时监听的子帧的位置。
对于频分双工(Frequency Division Duplexing,FDD)系统,可能的子帧位置为0,4,5,9,可根据i_s及表1来确定eRemote UE监听下行链路时监听的子帧的位置。
表1
Figure PCTCN2017078198-appb-000001
对于时分双工(Time Division Duplexing,TDD)系统,可能的子帧位置为0,1,5,6,可根据i_s及表2来确定eRemote UE监听下行链路时监听的子帧的位置。
表2
Figure PCTCN2017078198-appb-000002
通过上述过程确定eRemote UE监听下行链路时监听的无线帧的位置和子帧的位置之后,进而可以确定eRemote UE在sidelink监听的无线帧的位置和子帧的位置,确定方法包含以下两种实现方式:
实现方式一:根据配置的eRemote UE在监听下行链路时监听的无线帧的位置和子帧的位置,与eRemote UE在sidelink监听的无线帧的位置和子帧的位置之间的对应关系确定eRemote UE在sidelink监听的无线帧的位置和子帧的位置。
对于FDD系统,eRemote UE在监听下行链路时监听的无线帧的位置和子帧的位置,与eRemote UE在sidelink监听的无线帧的位置和子帧的位置相同,如图5所示,eRemote UE在sidelink监听的无线帧为无线帧A和无线帧X,需要监听的子帧为无线帧A和无线帧X中阴影部分代表的子帧。
对于TDD系统,eRemote UE在监听下行链路时监听的无线帧的位置,与eRemote UE在sidelink监听的无线帧的位置相同,根据不同的TDD配置,eRemote UE在监听下行链路时监听的子帧的位置,与eRemote UE在sidelink监听的子帧的位置之间有不同的对应关系,其中一种可能的对应关系如表3所示,表3中的Uu PO代表eRemote UE在监听下行链路时监听的子帧的位置, SL PO代表eRemote UE在sidelink监听的子帧的位置。
表3
Figure PCTCN2017078198-appb-000003
实现方式二:
对于FDD系统,第二用户设备在sidelink监听的子帧的位置为第二用户设备监听下行链路时监听的子帧位置加第一偏移量,所述第一偏移量为大于或等于0的正整数。其中,第一偏移量可以由第一用户设备配置,也可以由基站配置,或者为预设值。
例如,eRemote UE在监听下行链路时监听的无线帧位置为SFN=10,子帧编号为Subfrmae#0,如果第一偏移值为20,则eRemote UEsidelink监听的为SFN=30的无线帧中,子帧号为Subfrmae#0的子帧。
对于TDD系统,第二用户设备在sidelink监听的子帧的位置为第二用户设备监听下行链路时监听的子帧的位置加第二偏移量后,资源池中第一个可用于传输第二消息的子帧,第二偏移量为大于或等于0的正整数。其中,第二偏移量可以由第一用户设备配置,也可以由基站配置,或者为预设值。
例如,eRemote UE在监听下行链路时监听的无线帧位置为SFN=10,子帧编号为Subfrmae#0,如果第二偏移值为25,则eRemote UEsidelink监听的为SFN=30的无线帧中,子帧编号为Subfrmae#5的子帧。
方法二:
1、第一用户设备根据资源池配置信息和第一标识、第一寻呼周期,确定第二用户设备的一个寻呼周期内包含的资源池周期数量N,以及在每个资源池周期中用于发送第二消息的子帧数量M。
具体的,根据资源池的周期长度,可以确定eRemote UE在一个寻呼周期内包含的资源池周期的数量N,N=寻呼周期长度/资源池的周期长度,进而确定在eRemote UE的一个寻呼周期中的资源池的编号分别为0,1,2…N-1。例如,如图6所示,如果资源池偏移量为10ms,寻呼周期的长度为320ms,资源池的周期长度为20ms,则N=16,在该寻呼周期内资源池的编号分别为0,1,2…15。
另外根据资源池的配置信息中包含的用于指示传输第二消息的子帧的bitmap,可以确定在每个资源池周期中用于发送第二消息的子帧数量M,进而确定在每个资源池周期中可用于发送第二消息的子帧对应的索引号分别为0,1,2…M-1。例如,如果一个资源池周期中用于传输第二消息的子帧的bitmap为(0010000000,0000000100),则可确定M=2,在一个资源周期中用于传输第二消息的子帧对应的索引号分别为0,1。如图6所示,根据bitmap确定的用于传输第二消息的子帧为阴影区域对应的子帧,即在资源周期1中,有两个用于传输第二消息的子帧,第一个用于传输第二消息的子帧为第一帧中的子帧2,那么该子帧对应的索引号为0,第二个用于传输第二消息的子帧为为第一帧中的子帧7,那么该子帧对应的索引号为1。
2、第一用户设备确定在一个第一寻呼周期内,第二用户设备需要监听第二消息的资源池周期编号,所述资源池周期编号为所述第一标识mod N。
其中,N为上一步骤确定的eRemote UE在一个寻呼周期内包含的资源池周期的数量。
3、第一用户设备确定在一个资源池周期内,第二用户设备需要监听第二消息的子帧对应的索引号,子帧索引号为floor(第一标识/N)mod M。
4、第一用户设备根据步骤2确定的资源池周期编号和步骤3确定的子帧索引号确定所述第二用户设备在sidelink监听的子帧位置。
其中,在确定资源池周期编号和子帧编号后,即可从资源池周期编号对应的资源池周期中,确定子帧编号对应的子帧位置,该子帧位置即为第二用户设备在sidelink监听的子帧位置。
方法三:
第一用户设备根据第一标识和第一寻呼周期确定第三偏移量PO_offset,然后第一用户设备根据[帧号*10+子帧号+SL_offset]modulo(第一寻呼周期)=PO_offset确定所述第二用户设备在sidelink监听所述第二消息的帧号和子帧号,其中,SL_offset为所述资源池偏移量。
需要说明的是,在公式[帧号*10+子帧号+SL_offset]modulo(第一寻呼周期)=PO_offset中,SL_offset、第一寻呼周期以及PO_offset均已知,满足该公式的帧号和子帧号即为第二用户设备在sidelink监听第二消息的帧号和子帧号。
示例性的,如图7所示,如果资源池周期为20ms,资源池的偏移量为10ms,一个资源池周期中的用于传输第二消息的上行子帧位置的bitmap为(0010000000,0000000000)。假设一个eRelay UE下有两个与其建立了连接(link) 关系或者建立了侧行链路连接的eRemote UE,且所述两个eRemote UE的寻呼周期都为320ms。如果eRelay UE为eRemote UE1分配的在每个寻呼周期内的子帧位置为图7所示的子帧0,eRelay UE为eRemote UE2分配的在每个寻呼周期内的子帧位置为如图7所示的子帧1,那么eRelay UE需要为两个eRemote UE配置的PO_offset分别为2和22。
对于本申请实施例,第一用户设备和第二用户设备均可以确定第二用户设备监听第二消息的监听时间,进而第一用户设备在监听时间发送第二消息,第二用户设备即可在监听时间收到第二消息,这样第二用户设备就无需在下行链路上监听第二消息,降低了功率消耗,且第二用户设备无需一直监听sidelink,只需在监听时间醒来接收第二消息即可。
第一用户设备在向第二用户设备发送第二消息之前,不仅需要确定第二用户设备监听第二消息的监听时间,还需确定用于发送第二消息的资源,在本发明实施例的另一种实现方式中,对上述步骤204、第一用户设备确定用于发送第二消息的资源的方法进行了说明。
方法1:
当第一用户设备接收到网络设备发送的第一消息后,如果确定第一消息中包含与自身建立了sidelink连接的eRemote UE的设备标识,无论第一用户设备处于RRC_IDLE状态还是RRC_CONNECTED状态,第一用户设备均会确定第二用户设备在sidelink监听第二消息的子帧,进而结合资源池配置信息中包含的用于传输第二消息的频域资源位置,在确定出的子帧中,以等概率的方式随机选择用于传输第二消息的频域资源。
方法2:
当第一用户设备接收到网络设备发送的第一消息后,如果确定第一消息中包含与自身建立了sidelink连接的eRemote UE的设备标识,如果第一用户设备处于RRC_IDLE状态,则第一用户设备确定第二用户设备在sidelink监听第二消息的子帧,进而结合资源池配置信息中包含的用于传输第二消息的频域资源位置,在确定出的子帧中,以等概率的方式随机选择用于传输第二消息的频域资源。
当第一用户设备接收到网络设备发送的第一消息后,如果确定第一消息中包含与自身建立了sidelink连接的eRemote UE的设备标识,如果第一用户设备处于RRC_CONNECTED状态,则第一用户设备向网络设备发送第五消息,第五消息用于请求获取发送第二消息的资源,网络设备接收到第五消息后,会向第一用户设备返回第六消息,第六消息中包含网络设备为第一用户设备分配的用于发送第二消息的资源信息或者资源池信息。
其中,第五消息包含以下信息中的至少一种:
请求目的,该请求目的用于指示第五消息的目的为获取用于发送第二消息的资源;
发送第二消息的时间,具体可以为第一用户设备用于发送第二消息的帧号和子帧号;
第二消息中包含的比特数;
第二消息中包含的寻呼信息的数量,每个第二用户设备对应一个寻呼信息,每个寻呼信息包含一个第二用户设备标识和一个核心网域信息,核心网域信息为电路交换(Circuit Switching,CS)域或者分组交换(Packet Switching,PS)域。
方法3:
如果第一用户设备处于RRC_IDLE状态,则网络设备通过广播的方式将用于寻呼第二用户设备的第一消息发送给第一用户设备,如果确定第一消息中包含与自身建立了sidelink连接的eRemote UE的设备标识,第一用户设备确定第二用户设备在sidelink监听第二消息的子帧,进而结合资源池配置信息中包含的用于传输第二消息的频域资源位置,在确定出的子帧中,以等概率的方式随机选择用于传输第二消息的频域资源。
如果第一用户设备处于RRC_CONNECTED状态,则网络设备以专用消息的方式将用于寻呼第二用户设备的第一消息发送给第一用户设备,第一消息中还携带了用于传输第二资源的频域资源位置,进而第一用户设备在确定第二用户设备在sidelink监听第二消息的子帧之后,即可在确定的子帧中,使用第一消息中携带的频域资源位置所指示的频域资源来向第二用户设备发送第二消息。
方法4:
当网络设备需要向第一用户设备发送第一消息时,如果第一用户设备处于RRC_IDLE状态或者ECM_IDLE状态,则网络侧设备会先向第一用户设备发送寻呼消息,以使得第一用户设备转换至RRC_CONNECTED状态ECM_CONNECTED状态。当第一用户设备处于RRC_CONNECTED状态或者ECM_CONNECTED状态后,网络设备才会以专用消息的形式向第一用户设备发送用于寻呼第二用户设备的第一消息,第一消息中还携带用于传输第二资源的频域资源位置,进而第一用户设备在确定第二用户设备在sidelink监听第二消息的子帧之后,即可在确定的子帧中,使用第一消息中携带的频域资源位置所指示的频域资源来向第二用户设备发送第二消息。
具体而言,当MME需要通过eRelay UE来向与该eRelay UE之间存在sidelink连接的eRemote UE发送寻呼消息时,MME会先判断该eRelay UE的状态,如果确定该eRelay UE处于RRC_IDLE状态或ECM_IDLE状态,MME会向该eRelay UE发送寻呼消息,以触发eRelay UE进行状态的转换。当MME确定eRelay UE进入ECM_CONNECTED和RRC_CONNECTED状态之后,MME向基站发送用于寻呼eRemote UE的寻呼消息,然后基站通过专用信令向eRelay UE发送用于寻呼eRemote UE的第一消息,第一消息中携带了该 eRemote UE的设备标识以及用于发送第二消息的频域资源位置。eRelay UE确定eRemote UE监听第二消息的监听时间之后,即可在该监听时间,使用第一消息中携带的频域资源位置所指示的频域资源向eRemote UE发送第二消息。
方法5:
当第一用户设备收到网络设备发送的用于寻呼eRemote UE的第一消息时,如果确定第一消息中包含与自身建立了sidelink连接的eRemote UE的设备标识,并且第一用户设备处于RRC_IDLE状态,则第一用户设备可以触发RRC连接建立过程,从而转换至RRC_CONNECTED状态。在转入RRC_CONNECTED状态后,第一用户设备向网络设备发送第五消息,第五消息用于请求获取发送第二消息的资源,网络设备接收到第五消息后,会向第一用户设备返回第六消息,第六消息中包含网络设备为第一用户设备分配的用于发送第二消息的资源信息或者资源池信息。
其中,第五消息包含以下信息中的至少一种:
请求目的,该请求目的用于指示第五消息的目的为获取用于发送第二消息的资源;
发送第二消息的时间,具体可以为第一用户设备用于发送第二消息的帧号和子帧号;
第二消息中包含的比特数;
第二消息中包含的寻呼信息的数量,每个第二用户设备对应一个寻呼信息,每个寻呼信息包含一个第二用户设备标识和一个核心网域信息,核心网域信息为电路交换(Circuit Switching,CS)域或者分组交换(Packet Switching,PS)域。
可以理解的是,在第一用户设备和第二用户设备均确定了第二用户设备监听第二消息的监听时间,且第一用户设备确定用于传输第二消息的频域资源之后,第一用户设备即可通过sidelink向第二用户设备传输用于寻呼第二用户设备的寻呼消息,为了实现在sidelink上传输寻呼消息,本申请的实施例给出了一种协议栈,如图8所示。
其中,基站可以通过RRC层的Uu口传输第一消息,即基站可以通过空口的寻呼控制信道(Paging Control Channel,PCCH)和寻呼信道(Paging Control Channel,PCH)将第一消息发送给eRelay UE。
eRelay UE的RRC层通过Uu口接收到基站发送的第一消息后,如果确定第一消息中包含与自身建立了sidelink连接的eRemote UE的设备标识,则eRelay UE的RRC层生成包含eRemote UE的设备标识的第二消息,并将第二消息发送给PC5的RLC层。然后采用透明传输模式,PC5的RLC层不对第二消息进行任何处理,直接通过定义的用于传输第二消息的独立专用控制信道(Stand-Alone Dedicated Control Channel,SPCCH)将第二消息发送给PC5的介质访问控制(Media Access Control,MAC)层。在PC5的MAC层仍采 用透明传输模式,PC5的MAC层不对第二消息进行任何处理,直接通过用于传输第二消息的传输信道SL-PCH将第二消息发送给PC5的物理(Physical Layer,PHY)层。
eRemote UE的PC5的PHY层接收到第二消息后,将第二消息通过用于传输第二消息的传输信道SL-PCH传输给PC5的MAC层,然后PC5的MAC层通过SPCCH将所述消息传递给RRC层。如果第二消息中包含该eRemote UE的设备标识,则RRC层将该eRemote UE的设备标识传输给上层协议层
在一种可能的实现方式中,图8所示的协议栈的构成方式还可以实现为如图9所示的构成方式。
本申请的实施例还提供了另一种协议栈,如图10所示。
其中,基站可以通过PDCP层的Uu口传输第一消息,具体的,基站可以通过空口的DCCH和DCH向eRelay UE发送专用消息:RRC连接重配置(RRC Connection Reconfiguration)消息,RRC连接重配置消息中包含了第一消息。
在eRelay UE接收到第一消息后,后续eRelay UE和eRemote UE传输消息的过程和图8对应的实施例中的描述相同,此处不再赘述。
在一种可能的实现方式中,图10所示的协议栈的构成方式还可以替换为如图11所示的构成方式。
需要说明的是,本申请的实施例中第一用户设备通过RRC层生成的第二消息适用于任意一种短距离连接技术,即第一用户设备和第二用户设备不仅仅可以通过sidelink来传输第二消息,还可以通过无线局域网(Wireless Local Area Networks,WLAN)等方式来传输第二消息。
上述主要从第一用户设备和第二用户设备的角度对本发明实施例提供的方案进行了介绍。可以理解的是,第一用户设备和第二用户设备包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本发明的范围。
本申请的实施例可以根据上述方法示例对第一用户设备和第二用户设备进行功能模块的划分,例如,可以对应各个功能划分各个功能模块,也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。需要说明的是,本申请的实施例中对模块的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。
在采用对应各个功能划分各个功能模块的情况下,本申请的实施例还提供一种传输寻呼消息的装置,该装置可以实现为上述实施例中的第一用户设备。如图12所示,图12示出了上述实施例中所涉及的第一用户设备(eRelay UE)的一种可能的结构示意图。该第一用户设备包括:接收模块121,生成 模块122,确定模块123,获取模块124,发送模块125,转换模块126。
其中,接收模块121用于支持第一用户设备接收图3中的步骤301中网络设备发送的第一消息,以及图4中的步骤401中第二用户设备发送的第三消息;生成模块122,用于支持第一用户设备执行图3中的步骤302;确定模块123,用于支持第一用户设备执行图3中的步骤304;获取模块124,用于支持第一用户设备执行图3中的步骤305;发送模块125,用于支持第一用户设备执行图3中的步骤306,以及图4中的步骤402;转换模块126,用于支持第一用户设备触发RRC建立过程,转换至RRC_CONNRECTED状态。
其中,上述方法实施例涉及的各步骤的所有相关内容均可援引到对应功能模块的功能描述,在此不再赘述。
在采用集成的单元的情况下,需要说明的是,图12所示的生成模块122,确定模块123,获取模块124,转换模块126可以集成在图2所示处理器1022中,使处理器1022执行生成模块122,确定模块123,获取模块124,转换模块126的具体功能,接收模块121、发送模块125可以集成在图2所示的通信接口1021中,使通信接口1021执行接收模块121、发送模块125的具体功能。
在采用对应各个功能划分各个功能模块的情况下,本申请的实施例还提供另一种传输寻呼消息的装置,该装置可以实现为上述实施例中的第二用户设备。如图13所示,图13示出了上述实施例中所涉及的第二用户设备(eRemote UE)的一种可能的结构示意图。该第二用户设备包括:确定模块131,监听模块132,发送模块133,接收模块134。
其中,确定模块131,用于支持第二用户设备执行图3中的步骤305;监听模块132,用于支持第二用户设备执行图3中的步骤307;发送模块133,用于支持第二用户设备执行图4中的步骤401;接收模块134用于支持第二用户设备执行图3中的步骤306中第一用户设备发送的第二消息,以及图4中第一用户设备发送的第七消息。
其中,上述方法实施例涉及的各步骤的所有相关内容均可援引到对应功能模块的功能描述,在此不再赘述。
在采用集成的单元的情况下,需要说明的是,图13所示的确定模块131,监听模块132可以集成在图2所示处理器1032中,使处理器1032执行确定模块131,监听模块132的具体功能,发送模块133,接收模块134可以集成在图2所示的通信接口1031中,使通信接口1031执行发送模块133,接收模块134的具体功能。
本申请的实施例还提供一种数据传输系统,该数据传输系统可以包括上述任一实施例所述的第一用户设备、第二用户设备以及网络设备。
本申请的实施例还提供了一种计算机存储介质,用于储存为上述第一用户设备所用的计算机软件指令,其包含用于执行上述实施例中第一用户设备执行的步骤所设计的程序。
本申请例提供了一种计算机存储介质,用于储存为上述第二用户设备所用的计算机软件指令,其包含用于执行上述实施例中第一用户设备执行的步 骤所设计的程序。
结合本发明公开内容所描述的方法或者算法的步骤可以硬件的方式来实现,也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成,软件模块可以被存放于随机存取存储器(Random Access Memory,RAM)、闪存、只读存储器(Read Only Memory,ROM)、可擦除可编程只读存储器(Erasable Programmable ROM,EPROM)、电可擦可编程只读存储器(Electrically EPROM,EEPROM)、寄存器、硬盘、移动硬盘、只读光盘(CD-ROM)或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器,从而使处理器能够从该存储介质读取信息,且可向该存储介质写入信息。当然,存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外,该ASIC可以位于核心网接口设备中。当然,处理器和存储介质也可以作为分立组件存在于核心网接口设备中。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统,装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络设备上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本发明各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个功能单元独立存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用硬件加软件功能单元的形式实现。
通过以上的实施方式的描述,所属领域的技术人员可以清楚地了解到本申请可借助软件加必需的通用硬件的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在可读取的存储介质中,如计算机的软盘,硬盘或光盘等,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述的方法。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,在本申请揭露的技术范围内的变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。

Claims (43)

  1. 一种传输寻呼消息的方法,其特征在于,包括:
    第一用户设备接收网络设备发送的第一消息,所述第一消息用于寻呼第二用户设备,所述第一消息中至少包括第二用户设备的寻呼信息;
    所述第一用户设备根据所述第一消息生成第二消息,所述第二消息用于寻呼第二用户设备,所述第二消息中包含所述第二用户设备的寻呼信息;
    所述第一用户设备确定所述第二用户设备监听所述第二消息的监听时间;
    所述第一用户设备获取用于发送所述第二消息的资源;
    所述第一用户设备在所述监听时间,使用所述用于发送所述第二消息的资源向所述第二用户设备发送所述第二消息。
  2. 根据权利要求1所述的传输寻呼消息的方法,其特征在于,所述方法还包括:
    所述第一用户设备接收所述第二用户设备发送的第三消息,所述第三消息中携带用于确定所述监听时间的信息;或者,
    所述第一用户设备接收所述网络设备发送的第四消息,所述第四消息中携带用于确定所述监听时间的信息。
  3. 根据权利要求2所述的传输寻呼消息的方法,其特征在于,所述用于确定所述监听时间的信息包括第二用户设备标识,所述第二用户设备的特定寻呼周期,系统默认寻呼周期中的至少一项。
  4. 根据权利要求3所述的传输寻呼消息的方法,其特征在于,所述方法还包括:
    所述第一用户设备确定用于确定所述监听时间的第一标识,所述第一标识为第一用户设备标识或者所述第二用户设备标识;
    所述第一用户设备确定用于确定所述监听时间的第一寻呼周期,所述第一寻呼周期为所述特定寻呼周期,或者为所述特定寻呼周期和所述系统默认寻呼周期中较小的一个。
  5. 根据权利要求2至4中任一项所述的传输寻呼消息的方法,其特征在于,所述方法还包括:
    所述第一用户设备接收所述网络设备配置的用于传输所述第二消息的资源池配置信息,所述资源池配置信息包括以下信息中的至少一种:
    资源池偏移量;
    资源池周期长度;
    用于指示传输所述第二消息的子帧的位图bitmap;
    用于传输所述第二消息的频域资源位置。
  6. 根据权利要求4所述的传输寻呼消息的方法,其特征在于,所述第一用户设备确定所述第二用户设备监听所述第二消息的监听时间,包括:
    所述第一用户设备根据所述第一标识、所述第一寻呼周期以及nB确定所述第二用户设备在侧行链路sidelink监听的无线帧的位置和子帧的位置,所述nB为一个寻呼周期内包含的子帧数量。
  7. 根据权利要求6所述的传输寻呼消息的方法,其特征在于,所述第一用户设备根据所述第一标识、所述第一寻呼周期以及nB确定所述第二用户设备在侧行链路sidelink监听的无线帧的位置和子帧的位置,包括:
    所述第一用户设备根据所述第一标识、所述第一寻呼周期以及所述nB确定所述第二用户设备监听下行链路时监听的无线帧的位置和子帧的位置;
    所述第一用户设备根据所述第二用户设备监听下行链路时监听的无线帧和子帧的位置,确定所述第二用户设备在侧行链路sidelink监听的无线帧的位置和子帧的位置。
  8. 根据权利要求7所述的传输寻呼消息的方法,其特征在于,
    所述第二用户设备在sidelink监听的子帧的位置为所述第二用户设备监听下行链路时监听的子帧位置加第一偏移量,所述第一偏移量为大于或等于0的正整数;或者,
    所述第二用户设备在sidelink监听的子帧的位置为所述第二用户设备监听下行链路时监听的子帧的位置加第二偏移量后所述资源池中第一个可用于传输所述第二消息的子帧,所述第二偏移量为大于或等于0的正整数。
  9. 根据权利要求5所述的传输寻呼消息的方法,其特征在于,所述第一用户设备确定所述第二用户设备监听所述第二消息的监听时间,包括:
    所述第一用户设备根据所述资源池配置信息和所述第一标识、所述第一寻呼周期,确定所述第二用户设备的一个第一寻呼周期内包含的资源池周期数量N,以及在每个资源池周期中用于发送所述第二消息的子帧数量M;
    所述第一用户设备确定在一个第一寻呼周期内,所述第二用户设备需要监听所述第二消息的资源池周期编号,所述资源池周期编号为所述第一标识modN;
    所述第一用户设备确定在一个资源池周期内,所述第二用户设备需要监听所述第二消息的子帧编号,所述子帧编号为floor(第一标识/N)mod M;
    所述第一用户设备根据所述资源池周期编号和所述子帧编号确定所述第二用户设备在sidelink监听的子帧位置。
  10. 根据权利要求5所述的传输寻呼消息的方法,其特征在于,所述第一用户设备确定所述第二用户设备监听所述第二消息的监听时间,包括:
    所述第一用户设备根据所述第一标识和所述第一寻呼周期确定第三偏移量PO_offset;
    所述第一用户设备根据[帧号*10+子帧号+SL_offset]modulo(第一寻呼周期)=PO_offset确定所述第二用户设备在sidelink监听所述第二消息的帧号和子帧号,其中,SL_offset为所述资源池偏移量。
  11. 根据权利要求1所述的传输寻呼消息的方法,其特征在于,若所述第一用户设备处于RRC_IDLE状态,则在所述第一用户设备接收网络设备发送的第一消息之后,所述方法还包括:
    所述第一用户设备触发RRC连接建立过程,转换至RRC_CONNRECTED状态。
  12. 根据权利要求1至11中任一项所述的传输寻呼消息的方法,其特征在于,所述第一用户设备获取用于发送所述第二消息的资源,包括:
    所述第一用户设备向所述网络设备发送第五消息,所述第五消息用于请求获取发送所述第二消息的资源;
    所述第一用户设备接收所述网络设备发送的第六消息,所述第六消息包含所述网络设备为所述第一用户设备分配的用于发送所述第二消息的资源信息或者资源池信息。
  13. 根据权利要求12所述的传输寻呼消息的方法,其特征在于,所述第五消息包括下述信息中的至少一种:
    请求目的,所述请求目的用于指示所述第五消息的目的为获取用于发送第二消息的资源;
    发送所述第二消息的时间;
    所述第二消息中包含的寻呼信息的数量,每个第二用户设备对应一个寻呼信息;
    所述第二消息中包含的比特数。
  14. 根据权利要求1至11中任一项所述的传输寻呼消息的方法,其特征在于,所述第一用户设备获取用于发送所述第二消息的资源,包括:
    所述第一用户设备从所述第一消息中获取用于发送所述第二消息的资源,所述第一消息中包含所述网络设备为所述第一用户设备分配的用于发送所述第二消息的资源信息或者资源池信息。
  15. 根据权利要求1至14中任一项所述的传输寻呼消息的方法,其特征在于,所述第一用户设备接收网络设备发送的第一消息;所述第一用户设备根据所述第一消息生成所述第二消息,包括:
    所述第一用户设备的无线资源控制层接收所述第一消息,并根据所述第一消息生成所述第二消息。
  16. 一种传输寻呼消息的方法,其特征在于,包括:
    第二用户设备确定监听第二消息的监听时间,所述第二消息用于寻呼所述第二用户设备,所述第二消息中包含所述第二用户设备的寻呼信息;
    所述第二用户设备在所述监听时间监听第一用户设备发送的所述第二消息;
    当监听到所述第二消息时,所述第二用户设备接收所述第二消息。
  17. 根据权利要求16所述的传输寻呼消息的方法,其特征在于,所述方法还包括:
    所述第二用户设备向所述第一用户设备发送第三消息,所述第三消息中携带所述第二用户设备的特定寻呼周期;
    所述第二用户设备接收所述第一用户设备发送的第七消息,所述第七消息中携带用于确定所述监听时间的信息。
  18. 根据权利要求17所述的传输寻呼消息的方法,其特征在于,所述用于确定所述监听时间的信息包括第一用户设备标识,nB以及网络设备广播的系 统默认寻呼周期中的至少一个,所述nB为一个寻呼周期内包含的子帧数量;或者,
    所述用于确定所述监听时间的信息为所述网络设备配置的用于传输第二消息的资源池配置信息,所述资源池配置信息包括以下信息中的至少一种:
    资源池偏移量;
    资源池周期长度;
    用于指示传输所述第二消息的子帧的位图bitmap;
    用于传输所述第二消息的频域资源位置。
  19. 根据权利要求18所述的传输寻呼消息的方法,其特征在于,所述方法还包括:
    所述第二用户设备确定用于确定所述监听时间的第一标识,所述第一标识为所述第一用户设备标识或者所述第二用户设备标识;
    所述第二用户设备确定用于确定所述监听时间的第一寻呼周期,所述第一寻呼周期为所述特定寻呼周期,或者为所述特定寻呼周期和所述系统默认寻呼周期中较小的一个。
  20. 根据权利要求19所述的传输寻呼消息的方法,其特征在于,所述第二用户设备确定监听第二消息的监听时间,包括:
    所述第二用户设备根据所述第一标识、所述第一寻呼周期以及所述nB确定所述第二用户设备在侧行链路sidelink监听的子帧的位置。
  21. 根据权利要求20所述的传输寻呼消息的方法,其特征在于,所述第二用户设备根据所述第一标识、所述第一寻呼周期以及所述nB确定所述第二用户设备在侧行链路sidelink监听的子帧的位置,包括:
    所述第二用户设备根据所述第一标识、所述第一寻呼周期以及所述nB确定所述第二用户设备监听下行链路时监听的无线帧的位置和子帧的位置;
    所述第二用户设备根据所述第二用户设备监听下行链路时监听的无线帧和子帧的位置,确定所述第二用户设备在sidelink监听的子帧的位置。
  22. 根据权利要求21所述的传输寻呼消息的方法,其特征在于,
    所述第二用户设备在sidelink监听的子帧的位置为所述第二用户设备监听下行链路时监听的子帧位置加第一偏移量,所述第一偏移量为大于等于0的正整数;或者,
    所述第二用户设备在sidelink监听的子帧的位置为所述第二用户设备监听下行链路时监听的子帧的位置加第二偏移量后所述资源池中第一个可用于传输所述第二消息的子帧,所述第二偏移量为大于等于0的正整数。
  23. 根据权利要求19所述的传输寻呼消息的方法,其特征在于,所述第二用户设备确定监听第二消息的监听时间,包括:
    所述第二用户设备根据所述资源池配置信息和所述第一标识、所述第一寻呼周期,确定所述第二用户设备的一个第一寻呼周期内包含的资源池周期数量N,以及在每个资源池周期中用于发送所述第二消息的子帧数量M;
    所述第二用户设备确定在一个第一寻呼周期内,所述第二用户设备需要监 听所述第二消息的资源池周期编号,所述资源池周期编号为所述第一标识modN;
    所述第二用户设备确定在一个资源池周期内,所述第二用户设备需要监听所述第二消息的子帧编号,所述子帧编号为floor(第一标识/N)mod M;
    所述第二用户设备根据所述资源池周期编号和所述子帧编号确定所述第二用户设备在sidelink监听的子帧位置。
  24. 根据权利要求19所述的传输寻呼消息的方法,其特征在于,所述第二用户设备确定监听第二消息的监听时间,包括:
    所述第二用户设备根据所述第一标识和所述第一寻呼周期确定第三偏移量PO_offset;
    所述第二用户设备根据[帧号*10+子帧号+SL_offset]modulo(第一寻呼周期)=PO_offset确定所述第二用户设备在sidelink监听所述第二消息的帧号和子帧号,其中,SL_offset为所述资源池偏移量。
  25. 一种传输寻呼消息的装置,其特征在于,所述装置应用于第一用户设备中,所述装置包括:
    存储器,用于存储包括程序指令的信息;
    通信接口,用于接收网络设备发送的第一消息,所述第一消息用于寻呼第二用户设备,所述第一消息中至少包括所述第二用户设备的寻呼信息;
    处理器,与所述存储器和所述通信接口耦合,用于控制程序指令的执行,具体用于根据所述通信接口接收到的所述第一消息生成第二消息,所述第二消息用于寻呼第二用户设备,所述第二消息中包含所述第二用户设备的寻呼信息;确定所述第二用户设备监听所述第二消息的监听时间;
    所述处理器,还用于控制所述通信接口获取用于发送所述第二消息的资源;
    所述处理器,还用于控制所述通信接口在所述监听时间,使用用于发送所述第二消息的资源,向所述第二用户设备发送所述处理器生成的所述第二消息。
  26. 根据权利要求25所述的传输寻呼消息的装置,其特征在于,
    所述通信接口,还用于接收所述第二用户设备发送的第三消息,所述第三消息中携带用于确定所述监听时间的信息;或者,接收所述网络设备发送的第四消息,所述第四消息中携带用于确定所述监听时间的信息;其中,所述用于确定所述监听时间的信息包括所述第二用户设备标识,所述第二用户设备的特定寻呼周期,系统默认寻呼周期中的至少一项。
  27. 根据权利要求26所述的传输寻呼消息的装置,其特征在于,
    所述处理器,还用于确定用于确定所述监听时间的第一标识,所述第一标识为第一用户设备标识或者所述第二用户设备标识;确定用于确定所述监听时间的第一寻呼周期,所述第一寻呼周期为所述特定寻呼周期,或者为所述特定寻呼周期和所述系统默认寻呼周期中较小的一个。
  28. 根据权利要求25至27中任一项所述的传输寻呼消息的装置,其特征在于,
    所述通信接口,还用于接收所述网络设备配置的用于传输所述第二消息的 资源池配置信息,所述资源池配置信息包括以下信息中的至少一种:
    资源池偏移量;
    资源池周期长度;
    用于指示传输所述第二消息的子帧的位图bitmap;
    用于传输所述第二消息的频域资源位置。
  29. 根据权利要求27所述的传输寻呼消息的装置,其特征在于,
    所述处理器,还用于根据所述第一标识、所述第一寻呼周期以及nB确定所述第二用户设备在侧行链路sidelink监听的无线帧的位置和子帧的位置,所述nB为一个寻呼周期内包含的子帧数量。
  30. 根据权利要求29所述的传输寻呼消息的装置,其特征在于,
    所述处理器,具体用于根据所述第一标识、所述第一寻呼周期以及所述nB确定所述第二用户设备监听下行链路时监听的无线帧的位置和子帧的位置;根据所述第二用户设备监听下行链路时监听的无线帧和子帧的位置,确定所述第二用户设备在侧行链路sidelink监听的无线帧的位置和子帧的位置;
    所述第二用户设备在sidelink监听的子帧的位置为所述第二用户设备监听下行链路时监听的子帧位置加第一偏移量,所述第一偏移量为大于或等于0的正整数;或者,
    所述第二用户设备在sidelink监听的子帧的位置为所述第二用户设备监听下行链路时监听的子帧的位置加第二偏移量后所述资源池中第一个可用于传输所述第二消息的子帧,所述第二偏移量为大于或等于0的正整数。
  31. 根据权利要求28所述的传输寻呼消息的装置,其特征在于,
    所述处理器,还用于根据所述资源池配置信息和所述第一标识、所述第一寻呼周期,确定所述第二用户设备的一个第一寻呼周期内包含的资源池周期数量N,以及在每个资源池周期中用于发送所述第二消息的子帧数量M;确定在一个第一寻呼周期内,所述第二用户设备需要监听所述第二消息的资源池周期编号,所述资源池周期编号为所述第一标识mod N;确定在一个资源池周期内,所述第二用户设备需要监听所述第二消息的子帧编号,所述子帧编号为floor(第一标识/N)mod M;根据所述资源池周期编号和所述子帧编号确定所述第二用户设备在sidelink监听的子帧位置。
  32. 根据权利要求28所述的传输寻呼消息的装置,其特征在于,
    所述处理器,还用于根据所述第一标识和所述第一寻呼周期确定第三偏移量PO_offset;根据[帧号*10+子帧号+SL_offset]modulo(第一寻呼周期)=PO_offset确定所述第二用户设备在sidelink监听所述第二消息的帧号和子帧号,其中,SL_offset为所述资源池偏移量。
  33. 根据权利要求25所述的传输寻呼消息的装置,其特征在于,
    所述处理器,还用于触发RRC连接建立过程,转换至RRC_CONNRECTED状态。
  34. 根据权利要求25至33中任一项所述的传输寻呼消息的装置,其特征在于,
    所述通信接口,还用于向所述网络设备发送第五消息,所述第五消息用于请求获取发送所述第二消息的资源;接收所述网络设备发送的第六消息,所述第六消息包含所述网络设备为所述第一用户设备分配的用于发送所述第二消息的资源信息或者资源池信息;
    其中,所述第五消息包括下述信息中的至少一种:
    请求目的,所述请求目的用于指示所述第五消息的目的为获取用于发送第二消息的资源;
    发送所述第二消息的时间;
    所述第二消息中包含的寻呼信息的数量,每个第二用户设备对应一个寻呼信息;
    所述第二消息中包含的比特数。
  35. 根据权利要求25至33中任一项所述的传输寻呼消息的装置,其特征在于,
    所述通信接口,还用于从所述第一消息中获取用于发送所述第二消息的资源,所述第一消息中包含所述网络设备为所述第一用户设备分配的用于发送所述第二消息的资源信息或者资源池信息。
  36. 根据权利要求25至35中任一项所述的传输寻呼消息的装置,其特征在于,
    所述通信接口,还用于通过无线资源控制层接收所述第一消息;
    所述处理器,还用于根据所述第一消息通过无线资源控制层生成所述第二消息。
  37. 一种传输寻呼消息的装置,其特征在于,所述装置应用于第二用户设备中,所述装置包括:
    存储器,用于存储包括程序指令的信息;
    处理器,与所述存储器和通信接口耦合,用于控制程序指令的执行,具体用于确定监听第二消息的监听时间,所述第二消息用于寻呼所第二用户设备,所述第二消息中包含所述第二用户设备的寻呼信息;
    所述处理器,还用于控制所述通信接口在所述监听时间监听第一用户设备发送的所述第二消息;当监听到所述第二消息时,接收所述第二消息。
  38. 根据权利要求37所述的传输寻呼消息的装置,其特征在于,
    所述通信接口,用于向所述第一用户设备发送第三消息,所述第三消息中携带所述第二用户设备的特定寻呼周期;接收所述第一用户设备发送的第七消息,所述第七消息中携带用于确定所述监听时间的信息;
    其中,所述用于确定所述监听时间的信息包括第一用户设备标识,nB以及网络设备广播的系统默认寻呼周期中的至少一个,所述nB为一个寻呼周期内包含的子帧数量;或者,
    所述用于确定所述监听时间的信息为所述网络设备配置的用于传输第二消息的资源池配置信息,所述资源池配置信息包括以下信息中的至少一种:
    资源池偏移量;
    资源池周期长度;
    用于指示传输所述第二消息的子帧的位图bitmap;
    用于传输所述第二消息的频域资源位置。
  39. 根据权利要求38所述的传输寻呼消息的装置,其特征在于,
    所述处理器,还用于确定用于确定所述监听时间的第一标识,所述第一标识为所述第一用户设备标识或者所述第二用户设备标识;确定用于确定所述监听时间的第一寻呼周期,所述第一寻呼周期为所述特定寻呼周期,或者为所述特定寻呼周期和所述系统默认寻呼周期中较小的一个。
  40. 根据权利要求39所述的传输寻呼消息的装置,其特征在于,
    所述处理器,还用于根据所述第一标识、所述第一寻呼周期以及所述nB确定所述第二用户设备在侧行链路sidelink监听的子帧的位置。
  41. 根据权利要求40所述的传输寻呼消息的装置,其特征在于,
    所述处理器,具体用于根据所述第一标识、所述第一寻呼周期以及所述nB确定所述第二用户设备监听下行链路时监听的无线帧的位置和子帧的位置;根据所述第二用户设备监听下行链路时监听的无线帧和子帧的位置,确定所述第二用户设备在sidelink监听的子帧的位置;
    其中,所述第二用户设备在sidelink监听的子帧的位置为所述第二用户设备监听下行链路时监听的子帧位置加第一偏移量,所述第一偏移量为大于等于0的正整数;或者,
    所述第二用户设备在sidelink监听的子帧的位置为所述第二用户设备监听下行链路时监听的子帧的位置加第二偏移量后所述资源池中第一个可用于传输所述第二消息的子帧,所述第二偏移量为大于等于0的正整数。
  42. 根据权利要求39所述的传输寻呼消息的装置,其特征在于,
    所述处理器,还用于根据所述资源池配置信息和所述第一标识、所述第一寻呼周期,确定所述第二用户设备的一个第一寻呼周期内包含的资源池周期数量N,以及在每个资源池周期中用于发送所述第二消息的子帧数量M;确定在一个第一寻呼周期内,所述第二用户设备需要监听所述第二消息的资源池周期编号,所述资源池周期编号为所述第一标识mod N;确定在一个资源池周期内,所述第二用户设备需要监听所述第二消息的子帧编号,所述子帧编号为floor(第一标识/N)mod M;根据所述资源池周期编号和所述子帧编号确定所述第二用户设备在sidelink监听的子帧位置。
  43. 根据权利要求39所述的传输寻呼消息的装置,其特征在于,
    所述处理器,还用于根据所述第一标识和所述第一寻呼周期确定第三偏移量PO_offset;根据[帧号*10+子帧号+SL_offset]modulo(第一寻呼周期)=PO_offset确定所述第二用户设备在sidelink监听所述第二消息的帧号和子帧号,其中,SL_offset为所述资源池偏移量。
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CN115348646A (zh) * 2021-05-12 2022-11-15 展讯半导体(南京)有限公司 消息传输方法及相关装置
CN115529662A (zh) * 2021-06-24 2022-12-27 华为技术有限公司 一种通信方法及装置
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