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WO2023010363A1 - Procédé et dispositif d'émission-réception de signal, et système de communication - Google Patents

Procédé et dispositif d'émission-réception de signal, et système de communication Download PDF

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Publication number
WO2023010363A1
WO2023010363A1 PCT/CN2021/110682 CN2021110682W WO2023010363A1 WO 2023010363 A1 WO2023010363 A1 WO 2023010363A1 CN 2021110682 W CN2021110682 W CN 2021110682W WO 2023010363 A1 WO2023010363 A1 WO 2023010363A1
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WIPO (PCT)
Prior art keywords
paging
paging occasion
terminal device
occasion
paging message
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PCT/CN2021/110682
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English (en)
Chinese (zh)
Inventor
李国荣
张磊
王昕�
Original Assignee
富士通株式会社
李国荣
张磊
王昕�
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Application filed by 富士通株式会社, 李国荣, 张磊, 王昕� filed Critical 富士通株式会社
Priority to PCT/CN2021/110682 priority Critical patent/WO2023010363A1/fr
Publication of WO2023010363A1 publication Critical patent/WO2023010363A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user

Definitions

  • the embodiment of the present application relates to the technical field of communications.
  • the network device On the Uu interface, the network device (for example, gNB) sends a paging message to the terminal device (for example, UE).
  • the paging message can include paging of mobile called data initiated by the 5G core network (5GC) and RAN paging initiated by the radio access network (RAN), paging radio resource control idle (RRC_IDLE) status and radio resource control deactivation (RRC_INACTIVE ) state of the terminal equipment.
  • FIG. 1 is a schematic diagram of a network device (for example, Network) sending paging to a terminal device (for example, UE) through a Uu interface.
  • SL relay sidelink relay
  • UE-to-Network relay UE-to-Network relay
  • a relay terminal for example, relay UE
  • a relay is performed between a remote terminal (for example, a remote UE) and a network device.
  • Figure 2 is a schematic diagram of UE-to-Network relay.
  • the remote terminal (for example, remote UE) 103 is located outside the coverage of the network device 101 (out of coverage, OOC), and the relay terminal (for example, relay UE) 102 is located in the network device 101 coverage (in coverage, IC).
  • the remote terminal (for example, remote UE) 103 is located within the coverage of the network device 101 (in coverage, IC), and the relay terminal (for example, relay UE) 102 is located in the network device 101 Within the coverage (in coverage, IC), the remote terminal and the relay terminal are in the same cell coverage.
  • the remote terminal (for example, remote UE) 103 is located within the coverage of the network device 104 (in coverage, IC), and the relay terminal (for example, relay UE) 102 is located in the network device 101 Within the coverage (in coverage, IC), the remote terminal and the relay terminal are in different cell coverages.
  • the relay terminal (for example, relay UE) 102 communicates with the network device 101 using the NR Uu link on the Uu interface, and the remote terminal (for example, remote The UE) 103 and the relay terminal (for example, relay UE) 102 can communicate on the PC5 interface, for example, using an NR sidelink link.
  • the relay UE monitors paging occasions (PO) for the remote UE that has a PC5-RRC connection with itself. That is to say, when the network pages the remote UE (for example, when the remote UE is called), the network sends a paging message to the remote UE at the PO corresponding to the remote UE. The relay UE wakes up at the PO of the remote UE, and monitors whether there is a paging message for the remote UE in the network. If the paging message for the remote UE is received, the relay UE forwards the paging message to the remote UE.
  • PO paging occasions
  • the remote UE In order to receive the paging message on the side link (Sidelink, SL), the remote UE needs to listen to the physical side link control channel (PSCCH) on the side link and decode the physical side link shared channel (PSSCH), so as to obtain the side chain Sidelink Control Information (SCI) to determine whether there is a sidelink transmission for itself.
  • PSCCH physical side link control channel
  • PSSCH physical side link shared channel
  • the inventors of the present application found that there is no regulation at present when the remote UE should monitor whether there is a paging message forwarded by the relay UE in the SL, and there is no enhancement of side link discontinuous reception (SL DRX) for the paging message Therefore, the remote UE needs to continuously monitor the PSCCH to receive paging messages, so the power consumption of the remote UE will greatly increase.
  • SL DRX side link discontinuous reception
  • embodiments of the present application provide a method, device, and communication system for sending and receiving signals, and the relay UE can schedule a call after receiving a first paging opportunity related to a first paging message sent by a network device.
  • the relay UE and the remote UE are responsible for the second paging
  • the timing can have a consistent understanding, the remote UE does not have to continuously monitor the PSCCH or continuously receive the paging message on the side link, so the power consumption of the remote UE can be reduced, and the radio resources of the side link can be saved at the same time.
  • an apparatus for sending and receiving signals which is applied to a first terminal device, and includes a first sending and receiving unit, and the first sending and receiving unit is configured to:
  • an apparatus for sending and receiving signals which is applied to a second terminal device, and includes a second sending and receiving unit, and the second sending and receiving unit is configured to:
  • the second paging occasion is located after the first paging occasion in the time domain
  • the first timing is the timing when the first terminal device receives the first paging message.
  • the relay UE can send the second paging to the remote UE at the predetermined second paging occasion after receiving the first paging occasion related to the first paging message sent by the network device message and/or control information related to the second paging message (such as information carried by the PSCCH or SCI), so that the relay UE and the remote UE can have a consistent understanding of the second paging occasion, and the remote UE does not have to continuously monitor the PSCCH or The paging message on the side link is continuously received, so the power consumption of the remote UE can be reduced, and the wireless resources of the side link can be saved at the same time.
  • control information related to the second paging message such as information carried by the PSCCH or SCI
  • Fig. 1 is a schematic diagram of a network device sending paging to a terminal device through a Uu interface
  • Figure 2 is a schematic diagram of UE-to-Network relay
  • FIG. 3 is a schematic diagram of a method for sending and receiving signals in an embodiment of the first aspect of the present application
  • Fig. 4 is a schematic diagram of sending a paging message in an embodiment of the first aspect of the present application
  • Fig. 5 is a schematic diagram of PO1 and PO2;
  • Fig. 6 is a schematic diagram of a method for sending and receiving signals in an embodiment of the second aspect
  • Fig. 7 is a schematic diagram of a device for sending and receiving signals in an embodiment of the third aspect
  • Fig. 8 is a schematic diagram of a device for sending and receiving signals in an embodiment of the fourth aspect
  • Fig. 9 is a schematic diagram of a terminal device according to an embodiment of the fifth aspect.
  • Fig. 10 is a schematic diagram of a network device of an embodiment of the fifth aspect.
  • the terms “first”, “second”, etc. are used to distinguish different elements from the title, but do not indicate the spatial arrangement or time order of these elements, and these elements should not be referred to by these terms restricted.
  • the term “and/or” includes any and all combinations of one or more of the associated listed items.
  • the terms “comprising”, “including”, “having” and the like refer to the presence of stated features, elements, elements or components, but do not exclude the presence or addition of one or more other features, elements, elements or components.
  • the term “communication network” or “wireless communication network” may refer to a network conforming to any of the following communication standards, such as New Radio (NR, New Radio), Long Term Evolution (LTE, Long Term Evolution), Enhanced Long-term evolution (LTE-A, LTE-Advanced), wideband code division multiple access (WCDMA, Wideband Code Division Multiple Access), high-speed packet access (HSPA, High-Speed Packet Access), etc.
  • NR New Radio
  • New Radio Long Term Evolution
  • LTE-A Long-term evolution
  • LTE-A Long-term evolution
  • WCDMA Wideband Code Division Multiple Access
  • HSPA High-Speed Packet Access
  • the communication between devices in the communication system can be carried out according to any stage of communication protocols, such as but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G , New Radio (NR, New Radio), etc., and/or other communication protocols that are currently known or will be developed in the future.
  • Network device refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services for the terminal device.
  • Network equipment may include but not limited to the following equipment: integrated access and backhaul node (IAB-node), base station (BS, Base Station), access point (AP, Access Point), sending and receiving point (TRP, Transmission Reception Point), broadcast transmitter, mobile management entity (MME, Mobile Management Entity), gateway, server, radio network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller), etc.
  • IAB-node integrated access and backhaul node
  • BS Base Station
  • AP access point
  • TRP Transmission Reception Point
  • MME mobile management entity
  • MME Mobile Management Entity
  • gateway server
  • RNC Radio Network Controller
  • BSC Base Station Controller
  • the base station may include but not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), and 5G base station (gNB), etc., and may also include Remote Radio Head (RRH, Remote Radio Head) , Remote Radio Unit (RRU, Remote Radio Unit), relay (relay) or low-power nodes (such as femeto, pico, etc.).
  • Node B Node B
  • eNodeB or eNB evolved Node B
  • gNB 5G base station
  • RRH Remote Radio Head
  • RRU Remote Radio Unit
  • relay relay
  • low-power nodes such as femeto, pico, etc.
  • base station may include some or all of their functions, each base station may provide communication coverage for a particular geographic area.
  • the term "cell” can refer to a base station and/or its coverage area depending on the context in which the term is used.
  • the term "User Equipment” (UE, User Equipment) or “terminal equipment” (TE, Terminal Equipment or Terminal Device), for example, refers to a device that accesses a communication network through a network device and receives network services.
  • a terminal device may be fixed or mobile, and may also be called a mobile station (MS, Mobile Station), a terminal, a subscriber station (SS, Subscriber Station), an access terminal (AT, Access Terminal), a station, etc.
  • the terminal equipment may include but not limited to the following equipment: Cellular Phone (Cellular Phone), Personal Digital Assistant (PDA, Personal Digital Assistant), wireless modem, wireless communication equipment, handheld equipment, machine-type communication equipment, laptop computer, Cordless phones, smartphones, smart watches, digital cameras, and more.
  • Cellular Phone Cellular Phone
  • PDA Personal Digital Assistant
  • wireless modem wireless communication equipment
  • handheld equipment machine-type communication equipment
  • laptop computer Cordless phones
  • Cordless phones smartphones, smart watches, digital cameras, and more.
  • the terminal device can also be a machine or device for monitoring or measurement, such as but not limited to: a machine type communication (MTC, Machine Type Communication) terminal, Vehicle communication terminal, device to device (D2D, Device to Device) terminal, machine to machine (M2M, Machine to Machine) terminal, etc.
  • MTC Machine Type Communication
  • Vehicle communication terminal device to device (D2D, Device to Device) terminal
  • M2M Machine to Machine
  • network side refers to one side of the network, which may be a certain base station, or may include one or more network devices as above.
  • user side or “terminal side” or “terminal device side” refers to a side of a user or a terminal, which may be a certain UE, or may include one or more terminal devices as above.
  • the high-level signaling may be, for example, radio resource control (RRC) signaling; for example, it is called an RRC message (RRC message), for example, it includes MIB, system information (system information), and a dedicated RRC message; or it is called RRC IE (RRC information element).
  • RRC radio resource control
  • the high-level signaling may also be, for example, MAC (Medium Access Control) signaling; or called MAC CE (MAC control element). But the present application is not limited thereto.
  • the first terminal device may be the relay UE shown in Figure 2, that is, the first terminal device may be replaced with the relay UE;
  • the second terminal device may be the remote UE shown in Figure 2, that is, the second terminal The device can be replaced with remote UE.
  • the embodiment of the first aspect provides a method for sending and receiving signals, which is applied to a first terminal device, for example, a relay UE.
  • Fig. 3 is a schematic diagram of a method for sending and receiving signals in an embodiment of the first aspect of the present application. As shown in Fig. 3, the method includes:
  • Operation 301 Listen to a first paging opportunity, and receive a first paging message sent by a network device;
  • Operation 302 Send a second paging message and/or control information related to the second paging message to the second terminal device at a second paging occasion, where the second paging occasion is located in the time domain of the first paging After the time.
  • control information related to the second paging message may be the information carried in the PSCCH, such as the content of the first phase side link control information (SCI), including priority, PSSCH resource allocation, resource reservation period, The format of the SCI in the second stage, the resource amount of the SCI in the second stage, the modulation and coding scheme (MCS), etc., or the control information related to the second paging message may be side link control information (SCI).
  • SCI phase side link control information
  • MCS modulation and coding scheme
  • the first terminal device sends a second paging message and/or control information related to the second paging message to the second terminal device at the second paging occasion, which may be that the first terminal device
  • the SCI (carried in PSCCH and PSSCH) related to the second paging message is sent at the right time, and the L1 destination ID contained in the SCI can be the L1 ID of the second terminal device; or it can be sent by the first terminal device at the second paging time
  • the PSCCH related to the second paging message which indicates the resources of the PSSCH, and the PSSCH can carry the SCI of the second stage and/or the second paging message; or it can be that the first terminal device sends the second paging message at the second paging occasion PSCCH and PSSCH related to the paging message, where the PSSCH carries the second paging message.
  • the second paging occasion is located after the first paging occasion in the time domain, or the second paging occasion is located in the time domain in the first paging occasion and the PDCCH indicates the first paging message After the PDSCH.
  • the relay UE can send the second paging message to the remote UE at a predetermined second paging occasion after receiving the first paging occasion related to the first paging message sent by the network device and/or Or the control information related to the second paging message (such as the information carried by the PSCCH or SCI), so that the relay UE and the remote UE can have a consistent understanding of the second paging occasion, and the remote UE does not have to continuously monitor the PSCCH or continuously receive
  • the paging message on the side link can reduce the power consumption of the remote UE and save the wireless resources of the side link.
  • Fig. 4 is a schematic diagram of sending a paging message in the embodiment of the first aspect of the present application.
  • the first paging occasion PO1 (paging occasion 1) is the paging occasion of the Uu interface corresponding to the second terminal device (for example, remote UE).
  • the configuration and calculation of PO1 can refer to the configuration of the Uu interface currently specified
  • the calculation formula, in the configuration and calculation formula, the UE_ID used is the UE_ID of the remote UE, that is, the value of the 5G-S-TMSI modulo 1024 of the remote UE.
  • the first terminal device monitors PO1, and receives the paging message sent by the network device gNB to the remote UE, that is, the first paging message.
  • PO1 may also be referred to as PO1 of the remote UE.
  • the second paging occasion PO2 (paging occasion 2) is the second paging message and/or the second paging message sent by the first terminal device (for example, relay UE) to the remote UE on the side link
  • the paging occasion where the related control information (such as the information carried by the PSCCH or the SCI) is located.
  • the second paging message corresponds to the first paging message, for example, the second paging message is the same as the first paging message, or the relay UE parses and/or splits and/or reassembles the first paging message, etc. processing, so as to obtain the second paging message for the remote UE.
  • 5GC represents the 5G core network.
  • Figure 5 is a schematic diagram of PO1 and PO2. As shown in Figure 5, the PO2 of the remote UE is behind the PO1 of the remote UE or after the PDSCH indicated by the PDCCH in PO1.
  • the remote UE can discontinuously monitor the SCI on the sidelink (carried in the PSCCH and PSSCH) on PO2, thereby reducing the power consumption of the remote UE.
  • TDD time division duplex
  • the PO of the Uu interface is in the downlink slot
  • the PO on the SL is the moment when the relay UE sends paging and/or paging-related control information, and the Uu carrier is used in the SL (or In the case where SL and Uu have the same carrier)
  • the PO on SL is one or more than one SL slot in the uplink slot of the relay UE, or one or more than one SL symbol (symbol) in the SL slot.
  • PO2 is the predetermined paging occasion after PO1 or PDSCH indicated by PDCCH in PO1, therefore, relay UE and remote UE have a consistent understanding of PO2.
  • the second paging occasion (PO2) in operation 302 may be determined according to the first paging occasion (PO1) or the PDSCH indicated by the PDCCH in PO1.
  • the first paging occasion is a paging occasion corresponding to the second terminal device on the Uu interface.
  • PO1 is calculated by the remote UE according to the Uu interface PO calculation formula and configured parameters.
  • the second paging occasion (PO2) has a predetermined time offset relative to the first paging occasion (PO1) or the PDSCH indicated by the PDCCH in PO1.
  • the time offset may be configured by a network device (for example, gNB) to the first terminal device, for example, the network device configures the time offset to the first terminal through a system information block (SIB) or a radio resource control (RRC) message device; or, the time offset may be pre-configured to the first terminal device; or, the time offset is configured to the first terminal device by the second terminal device, for example, the second terminal device sends the time offset through the PC5-RRC message
  • the offset is configured to the first terminal device.
  • the unit of the time offset can be frame (frame) or half frame (half frame) or slot (slot) or symbol (symbol) or side link slot (SL slot) or side link symbol (SL symbol), etc. .
  • the time offset can be individually configured or pre-configured for different remote UEs. For example, assuming that the relay UE has PC5 RRC connections with remote UE1 and remote UE2, for the relay UE, the time offset and remote UE1 corresponding time offset and remote UE1 can be configured or pre-configured. The time offset corresponding to UE2; or, the time offset can also be configured for a group of remote UEs.
  • the relay UE can be configured or pre-configured
  • the time offset corresponding to remote UE1 and remote UE2 (these two remote UEs form a group) and the time offset corresponding to remote UE3; or, the same time offset can also be configured for all remote UEs, for example, assuming that the relay UE and remote UE1, remote UE2, and remote UE3 have PC5 RRC connections, and for relay UEs, remote UE1, remote UE2, and remote UE3 can be configured or pre-configured to correspond to the same time offset.
  • the time offset may be the time offset in the sidelink (sidelink) transmission resource pool of the first terminal device.
  • the unit of the time offset is slot
  • PO2 is PO1 or PO1
  • the method of determining PO2 is similar to the time offset of other units.
  • the second terminal device may be provided by the network device or the first terminal device with information about the sidelink transmission resource pool of the first terminal device, so that the second terminal device can use the sidelink (sidelink) transmission resource pool
  • the time unit is used as a time offset to determine PO2.
  • the time offset may be the time offset in the sidelink (sidelink) receiving resource pool of the second terminal device.
  • the unit of the time offset is slot
  • PO2 is PO1 or the PDSCH indicated by the PDCCH in PO1
  • the first SL slot in the side link receiving resource pool of the remote UE is added to the slot of the time offset.
  • the method of determining PO2 is similar.
  • the first terminal device may be provided by the network device or the second terminal device with information about the sidelink (sidelink) receiving resource pool of the second terminal device, so that the first terminal device can use the sidelink (sidelink) to receive The time unit in the resource pool is used as the time offset to determine PO2.
  • the second paging occasion is the first paging occasion or the Kth one in the side link transmission resource pool of the first terminal device after the PDSCH indicated by the PDCCH in the first paging occasion SL time slot (slot) (or, PSCCH transmission opportunity), K is a natural number.
  • K is 1. That is, the second paging occasion (PO2) is the first paging occasion or the first time slot (slot) in the side link transmission resource pool of the first terminal device after the PDSCH indicated by the PDCCH in the first paging occasion. ), that is, PO2 is the first available SL transmission resource of the relay UE after PO1 or the PDSCH indicated by the PDCCH in PO1.
  • PO1 can be slot 2 of subframe 5 with SFN 0.
  • SFN system frame number
  • the second terminal device may be provided by the network device or the first terminal device with information about the sidelink (sidelink) transmission resource pool of the first terminal device, so that the second terminal device can use the sidelink (sidelink) Send the scheduled time slot in the resource pool as PO2.
  • the second paging occasion is the first paging occasion or the Lth SL time slot in the side link receiving resource pool of the second terminal device after the PDSCH indicated by the PDCCH in the first paging occasion (slot) (or, PSCCH monitoring opportunity), L is a natural number.
  • L is 1. That is, the second paging occasion is the first paging occasion or the first time slot (slot) in the side link receiving resource pool of the second terminal device after the PDSCH indicated by the PDCCH in the first paging occasion. That is to say, PO2 is the first available SL receiving resource of the remote UE after PO1 or the PDSCH indicated by the PDCCH in PO1.
  • PO2 can be in SFN 0 slot 2 of subframe 5.
  • the first terminal device may be provided by the network device or the second terminal device with information about the sidelink (sidelink) receiving resource pool of the second terminal device, so that the first terminal device can use the sidelink (sidelink) Receives a scheduled time slot in the resource pool as PO2.
  • the second paging occasion is obtained by calculating parameters.
  • the parameters used to calculate the second paging occasion are not exactly the same as the parameters used to calculate the first paging occasion (for example, PO1 in FIG. 4 ). That is, the parameters for calculating PO2 are configured at least partially separately from the parameters for calculating PO1.
  • the parameters used to calculate the second paging opportunity include at least one of the following parameters: paging discontinuous reception cycle (paging DRX cycle), the number of paging radio frames in the paging discontinuous reception cycle, the number of paging radio frames The number of paging occasions and the offset value for determining the paging radio frame.
  • paging discontinuous reception cycle paging DRX cycle
  • the number of paging radio frames in the paging discontinuous reception cycle the number of paging radio frames
  • the number of paging occasions and the offset value for determining the paging radio frame The parameters used to calculate the second paging opportunity.
  • the paging discontinuous reception cycle takes the uplink time slot of the first terminal device as the unit, or takes the side link time slot as the unit .
  • the parameters for calculating the second paging occasion may be configured by the network device (for example, the network device configures the parameters for calculating PO2 to the first terminal device through a SIB or RRC message), or be pre-configured, or be configured by the second Terminal device configuration (for example, the second terminal device configures the parameters for calculating PO2 for the first terminal device through a PC5-RRC message).
  • the first terminal device monitors PO1, and if it receives the paging message from the network device to the remote UE, the PDSCH indicated by the PDCCH in PO1 or the first paging opportunity is calculated according to this group of parameters
  • the Mth PO2 in more than one PO2 sends the paging message and/or the control information related to the paging message to the remote UE (M is a natural number, which can be 1), for example, after the PDSCH indicated by the PDCCH in PO1 or PO1
  • the next PO2 that is, the first candidate opportunity
  • the method for calculating PO2 may be consistent with the method for calculating PO1 at the Uu interface, or other formulas may be used.
  • PO2 and/or PO1 can be calculated in the manner shown in Table 1 below.
  • the first paging occasions appear repeatedly in the time domain (for example, PO1 calculated according to the above Table 1 repeatedly appears in the time domain), each first paging occasion or the PDCCH in the first paging occasion There are more than one second paging occasions after the indicated PDSCH, and the first terminal device receives more than one second paging occasion after receiving the first paging occasion related to the first paging message or the PDSCH indicated by the PDCCH in the first paging occasion In the second paging occasion, send the second paging message and/or control information related to the second paging message to the second terminal device (remote UE).
  • the second terminal device remote device
  • one PO1 corresponds to one PO2. If the monitoring of the current PO2 fails to receive the second paging message, it is necessary to monitor the PO2 corresponding to the next PO1 (that is, the next PO1 or the next PO1 PO2 after the PDSCH indicated by the PDCCH) to receive the second paging message again; and in Embodiment 5, one PO1 may correspond to more than one PO2, thus, the second terminal device can A second paging message is received.
  • each PO2 among more than one PO2 corresponding to one PO1 may be PO2 obtained according to Embodiments 1 to 4, or the side chain after the PDSCH indicated by the PDCCH in the PO1 or PO1 One PSCCH monitoring occasion (SL PSCCH monitoring occasion) or one side link time slot (SL slot).
  • SL PSCCH monitoring occasion One PSCCH monitoring occasion
  • SL slot one side link time slot
  • each second terminal device when multiple (for example, at least 2) second terminal devices are in the UE-to-Network relay scenario, each second terminal device has respective PO2.
  • the second paging occasions corresponding to the at least two second terminal devices can completely overlap in the time domain (thus, paging messages can be sent to more than one remote UE in one PO2, saving SL resources), without Overlap (thereby, the receiving time of the paging message of each remote UE can be dispersed, thereby distributing the load (load) of paging) or partial overlap (thus, the effects of complete overlap and non-overlap can be taken into account).
  • the first terminal device may send the second paging message and/or control information related to the second paging message based on the feedback from the second terminal device For example, when the second paging message is not successfully received by the second terminal device, the first terminal device may no longer send the second paging message, and/or, when the second paging message is not successfully received by the second terminal device
  • the first terminal device When receiving, for example, the second terminal device may feed back HARQ NACK to the first terminal device, or the second paging message requires HARQ feedback but the first terminal device does not receive the HARQ feedback, etc., the first terminal device responds in the second paging message
  • the second paging message and/or the control information related to the second paging message are sent in the next PSCCH monitoring occasion (PSCCH monitoring occasion) or the next side link transmission resource (for example, SL slot) after the corresponding PSFCH,
  • the second terminal device needs to continuously monitor N1 side link resources (such as SL
  • Embodiment 5 since there is more than one PO2 after one PO1 or the PDSCH indicated by the PDCCH in PO1, in Embodiment 5, the second search can also be retransmitted on the more than one PO2. paging message, the second terminal device needs to monitor the more than one PO2 to receive the second paging message.
  • the first terminal device may blindly transmit the second paging message, for example, the first terminal device may transmit the second paging message more than once.
  • Paging message the first terminal device sends N2 (N2 is a positive integer) PSCCH monitoring occasions (PSCCH monitoring occasion) or the next side link after sending the second paging message or the control information related to the second paging message Send the second paging message and/or the control information related to the second paging message in the resource (for example, SL slot), if the second terminal device receives the second paging message correctly, it can no longer monitor the subsequent side chain Otherwise, the second terminal device monitors N2 side link resources (for example, SL slot) after PO2 to receive the second paging message.
  • N2 is a positive integer
  • PSCCH monitoring occasion PSCCH monitoring occasion
  • the resource for example, SL slot
  • Embodiment 5 since there is more than one PO2 after one PO1 or the PDSCH indicated by the PDCCH in PO1, in Embodiment 5, the second search can also be retransmitted on the more than one PO2. paging message, the second terminal device needs to monitor the more than one PO2 to receive the second paging message.
  • the first terminal device sends a second paging message and/or to one or at least two second terminal devices (remote UE) at the second paging occasion
  • the relay UE when the relay UE knows the PO1 of the remote UE and does not parse the content of the paging message, that is, the relay UE can determine which remote UE(s) to send the paging message to according to PO1, without parsing the paging carried in the paging message
  • the relay UE can combine the paging message and /or the control information related to the paging message is (respectively) sent to the remote UE(s).
  • the relay UE listens to PO1 and receives a paging message, it can send the paging message and/or the control information related to the paging message in PO2 corresponding to remote UE1, and the remote The paging message and/or the control information related to the paging message are sent in PO2 corresponding to UE2, wherein, PO2 corresponding to remote UE1 and PO2 corresponding to remote UE2 may completely overlap, partially overlap or not overlap.
  • the first terminal device parses the first paging message, and includes paging messages for at least two second terminal devices in the first paging message
  • the first terminal device sends the second paging message to the at least two second terminal devices at the second paging occasion corresponding to the at least two second terminal devices and/or the second paging message related
  • the control information of the first paging message is the same as the second paging message (for example, the first terminal device does not split the first paging message).
  • the relay UE parses the content of the paging message (for example, the first paging message), that is, the relay UE can know the list of UE identifiers included in the paging message, if the paging message includes remote UE1 and the identity of remote UE2, the relay UE can send the paging message (for example, the first paging message) and/or the control information related to the paging message to remote UE1 in PO2 corresponding to remote UE1, and send the paging message to remote UE1 in PO2 corresponding to remote UE2 Send the paging message (for example, the first paging message) and/or the control information related to the paging message to the remote UE2.
  • the paging message for example, the first paging message
  • the relay UE can know the list of UE identifiers included in the paging message, if the paging message includes remote UE1 and the identity of remote UE2, the relay UE can send the paging message (for example
  • the first terminal device parses the first paging message, and the first paging message includes paging messages for at least 2 second terminal devices Next, the first paging message is split to form a second paging message for each second terminal device, wherein, at the second paging occasion corresponding to each of the at least two second terminal devices, the first terminal device, Send the corresponding second paging message and/or control information related to the second paging message to each second terminal device.
  • the relay UE parses the content of the paging message (for example, the first paging message), that is, the relay UE can know the list of UE identifiers included in the paging message, if the paging message includes remote UE1 and the identity of remote UE2, the relay UE can split the paging message into two paging messages, wherein paging message 1 (ie, the second paging message corresponding to remote UE1) corresponds to remote UE1, and paging message 2 (ie, corresponding to remote UE2 The second paging message) corresponds to remote UE2, sends paging message 1 and/or control information related to paging message 1 to remote UE1 in PO2 corresponding to remote UE1, and sends paging message 2 and/or paging message 1 in PO2 corresponding to remote UE2 Or the control information related to the paging message 2 is sent to the remote UE2.
  • paging message 1 ie, the second paging message corresponding to remote UE
  • the first terminal device parses the first paging message, if the The first paging message includes a paging message for a second terminal device, then the first terminal device sends a second paging message to the second terminal device at a second paging opportunity corresponding to the second terminal device paging message and/or control information related to the second paging message, wherein the second paging message is the same as the first paging message, that is, the first terminal device does not split the first paging message, but The first paging message is sent to the second terminal device as a second paging message.
  • remote UE1 and remote UE2 are both connected to relay UE, and PO1 corresponding to remote UE1 and PO1 corresponding to remote UE2 overlap at least partially, when relay UE listens to PO1 corresponding to these two remote UEs, it receives a paging message (that is, the paging message), the relay UE parses the paging message, and the paging message only contains the paging record for remote UE1 (that is, the first paging message only includes the paging message for remote UE1), then the relay UE can only Send the paging message and/or the control information related to the paging message to the remote UE1 at the PO2 corresponding to the remote UE1, instead of sending it to the remote UE2, so as to save SL resources.
  • a paging message that is, the paging message
  • the relay UE parses the paging message
  • the paging message only contains the paging record for remote UE1 (that is, the first paging message only
  • the length of the second paging occasion PO2 is related to the PBSCH/synchronization signal block (SSB) or reference signal in the side link, for example, multiple beams (beam) or SL-
  • the length of PO2 is proportional to the number of beams or SL-SSBs in SL or the number of SL-SSBs actually sent.
  • the relay UE can send the second paging message to the remote UE at a predetermined second paging occasion after receiving the first paging occasion related to the first paging message sent by the network device and/or Or the control information related to the second paging message, so that the relay UE and the remote UE can have a consistent understanding of the second paging opportunity, and the remote UE does not have to continuously monitor the PSCCH or continuously receive paging messages on the side link, so , while reducing the power consumption of the remote UE and saving radio resources of the side link.
  • the embodiment of the second aspect of the present application provides a method for sending and receiving signals, which is applied to a second terminal device.
  • the method for sending and receiving signals in the embodiment of the second aspect corresponds to the method for sending and receiving signals in the embodiment of the first aspect.
  • Fig. 6 is a schematic diagram of a method for sending and receiving signals in an embodiment of the second aspect. As shown in Figure 6, the methods for sending and receiving signals include:
  • Operation 601 monitor the second paging opportunity (PO2), and receive the second paging message sent by the first terminal device (relay UE) and/or the control information related to the second paging message, wherein the second paging opportunity is at It is located after the first paging occasion in the time domain, and the first occasion is the occasion when the first terminal device receives the first paging message.
  • PO2 the second paging opportunity
  • the second paging opportunity is at It is located after the first paging occasion in the time domain, and the first occasion is the occasion when the first terminal device receives the first paging message.
  • the remote UE can receive the first paging opportunity related to the first paging message sent by the network device or the scheduled second paging after the PDSCH indicated by the PDCCH in the first paging occasion.
  • the paging opportunity receives the second paging message and/or the control information related to the second paging message from the relay UE, so that the relay UE and the remote UE can have a consistent understanding of the second paging occasion, and the remote UE does not have to continuously monitor the PSCCH Or continuously receive the paging message on the side link, so the power consumption of the remote UE can be reduced, and the wireless resources of the side link can be saved at the same time.
  • the second paging occasion may be determined based on the first paging occasion.
  • the first paging opportunity is the paging opportunity corresponding to the second terminal device on the Uu interface, and PO1 is calculated by the remote UE according to the Uu interface PO calculation formula and configured parameters.
  • the second paging occasion (PO2) has a predetermined time offset relative to the first paging occasion (PO1) or the PDSCH indicated by the PDCCH in PO1.
  • the time offset may be configured by a network device (for example, gNB) to the second terminal device, for example, the network device configures the time offset to the second terminal through a system information block (SIB) or a radio resource control (RRC) message device; or, the time offset may be pre-configured to the second terminal device; or, the time offset is configured to the second terminal device by the first terminal device, for example, the first terminal device sends the time offset through the PC5-RRC message
  • the offset is configured to the second terminal device.
  • the unit of the time offset may be frame (frame) or half frame (half frame) or time slot (slot) or symbol (symbol) or SL slot or SL symbol.
  • the time offset can be individually configured or pre-configured for different remote UEs. For example, assuming that the relay UE has PC5 RRC connections with remote UE1 and remote UE2, for the relay UE, the time offset and remote UE1 corresponding time offset and remote UE1 can be configured or pre-configured. The time offset corresponding to UE2; or, the time offset can also be configured for a group of remote UEs.
  • the relay UE can be configured or pre-configured
  • the time offset corresponding to remote UE1 and remote UE2 (these two remote UEs form a group) and the time offset corresponding to remote UE3; or, the same time offset can also be configured for all remote UEs, for example, assuming that the relay UE and remote UE1, remote UE2, and remote UE3 have PC5 RRC connections, and for relay UEs, remote UE1, remote UE2, and remote UE3 can be configured or pre-configured to correspond to the same time offset.
  • the time offset may be the time offset in the sidelink (sidelink) transmission resource pool of the first terminal device.
  • the unit of the time offset is slot
  • PO2 is PO1 or PO1
  • the method of determining PO2 is similar to the time offset of other units.
  • the second terminal device may be provided by the network device or the first terminal device with information about the sidelink transmission resource pool of the first terminal device, so that the second terminal device can use the sidelink (sidelink) transmission resource pool
  • the time unit is used as a time offset to determine PO2.
  • the time offset may also be the time offset in the sidelink (sidelink) receiving resource pool of the second terminal device.
  • the unit of the time offset is slot
  • PO2 is indicated by PO1 or the PDCCH in PO1
  • the method of determining PO2 is similar to the time offset of other units.
  • the second terminal device may be provided by the network device or the first terminal device with information about the sidelink (sidelink) sending resource pool of the first terminal device, so that the second terminal device can use the sidelink (sidelink) to send A time unit (for example, time slot) in the resource pool is used as a time offset to determine PO2.
  • a time unit for example, time slot
  • the second paging occasion is the first paging occasion or the Kth one in the side link transmission resource pool of the first terminal device after the PDSCH indicated by the PDCCH in the first paging occasion SL time slot (slot) (or, PSCCH transmission opportunity), K is a natural number.
  • K is 1. That is, the second paging occasion (PO2) is the first paging occasion or the first time slot (slot) in the side link transmission resource pool of the first terminal device after the PDSCH indicated by the PDCCH in the first paging occasion. ), that is, PO2 is the first available SL transmission resource of the relay UE after PO1 or the PDSCH indicated by the PDCCH in PO1.
  • PO1 can be slot 2 of subframe 5 with SFN 0.
  • SFN system frame number
  • the second terminal device may be provided by the network device or the first terminal device with information about the sidelink (sidelink) transmission resource pool of the first terminal device, so that the second terminal device can use the sidelink (sidelink) Send the scheduled time slot in the resource pool as PO2.
  • the second paging occasion is the first paging occasion or the Lth SL time slot in the side link receiving resource pool of the second terminal device after the PDSCH indicated by the PDCCH in the first paging occasion (slot) (or, PSCCH monitoring opportunity), L is a natural number.
  • L is 1. That is, the second paging occasion is the first paging occasion or the first time slot (slot) in the side link receiving resource pool of the second terminal device after the PDSCH indicated by the PDCCH in the first paging occasion. That is to say, PO2 is the first available SL receiving resource of the remote UE after PO1 or the PDSCH indicated by the PDCCH in PO1.
  • PO2 can be in SFN 0 slot 2 of subframe 5.
  • the first terminal device may be provided by the network device or the second terminal device with information about the sidelink (sidelink) receiving resource pool of the second terminal device, so that the first terminal device can use the sidelink (sidelink) Receives a scheduled time slot in the resource pool as PO2.
  • the remote UE obtains the second paging opportunity by calculating the parameters.
  • the parameters used to calculate the second paging occasion are not exactly the same as the parameters used to calculate the first paging occasion (for example, PO1 in FIG. 4 ). That is, the parameters for calculating PO2 are configured at least partially separately from the parameters for calculating PO1.
  • the parameters used to calculate the second paging opportunity include at least one of the following parameters: paging discontinuous reception cycle (paging DRX cycle), the number of paging radio frames in the paging discontinuous reception cycle, the number of paging radio frames The number of paging occasions and the offset value for determining the paging radio frame.
  • paging discontinuous reception cycle paging DRX cycle
  • the number of paging radio frames in the paging discontinuous reception cycle the number of paging radio frames
  • the number of paging occasions and the offset value for determining the paging radio frame The parameters used to calculate the second paging opportunity.
  • the paging discontinuous reception cycle takes the uplink time slot of the first terminal device as the unit, or takes the side link time slot as the unit .
  • the parameters used to calculate the second paging occasion may be configured by the network device (for example, the network device configures the parameters used to calculate PO2 to the second terminal device through a SIB or RRC message), or be pre-configured, or be configured by the first Terminal device configuration (for example, the first terminal device configures the parameters for calculating PO2 for the second terminal device through a PC5-RRC message).
  • the second terminal device performs paging monitoring in more than one PO2 calculated according to the set of parameters, so as to receive the second paging message.
  • the method for calculating PO2 may be consistent with the method for calculating PO1 at the Uu interface, or other formulas may be used.
  • PO2 and/or PO1 can be calculated in the manner shown in Table 1 in the embodiment of the first aspect.
  • the first paging occasions appear repeatedly in the time domain (for example, PO1 calculated according to the above Table 1 repeatedly appears in the time domain), each first paging occasion or the PDCCH in the first paging occasion There is more than one second paging opportunity after the indicated PDSCH, and the second terminal device performs paging at the first paging occasion or at more than one second paging occasion after the PDSCH indicated by the PDCCH in the first paging occasion call monitoring.
  • one PO1 corresponds to one PO2. If the second paging message is not successfully received at the current PO2, the second terminal device needs to receive the second paging message at the PO2 corresponding to the next PO1 (that is, the next PO1 or the next PO2). PO2 after the PDSCH indicated by the PDCCH in PO1) monitors again to receive the second paging message; and in Embodiment 5, one PO1 may correspond to more than one PO2, and the second terminal device may be in the more than one PO2 Monitoring is performed on one PO2, so that the second terminal device can receive the second paging message with a relatively low delay.
  • each PO2 among more than one PO2 corresponding to one PO1 may be PO2 obtained according to Embodiments 1 to 4, or the side chain after the PDSCH indicated by the PDCCH in the PO1 or PO1 One PSCCH monitoring occasion (SL PSCCH monitoring occasion) or one side link time slot (SL slot).
  • SL PSCCH monitoring occasion One PSCCH monitoring occasion
  • SL slot one side link time slot
  • each second terminal device when multiple (for example, at least 2) second terminal devices are in the UE-to-Network relay scenario, each second terminal device has respective PO2.
  • the second paging occasions corresponding to the at least two second terminal devices can completely overlap in the time domain (thus, paging messages can be sent to more than one remote UE in one PO2, saving SL resources), without Overlap (thereby, the receiving time of the paging message of each remote UE can be dispersed, thereby distributing the load (load) of paging) or partial overlap (thus, the effects of complete overlap and non-overlap can be taken into account).
  • the second terminal device when the second paging message is not successfully received by the second terminal device, for example, the second terminal device may feed back a HARQ NACK to the first terminal device, or the second paging message requires HARQ feedback but the first terminal device does not receive HARQ feedback, etc., the second terminal device can continuously monitor the N1 side link resources after the physical side link feedback channel (PSFCH) corresponding to PO2 (such as SL slot), N1 is a positive integer (such as 1), to receive the second paging message, or, the second terminal device is at the next first paging opportunity or the first paging opportunity after the PDSCH indicated by the PDCCH in the first paging opportunity Two paging occasions to perform paging monitoring.
  • PSFCH physical side link feedback channel
  • the first terminal device can resend the second paging message on the more than one PO2,
  • the second terminal device may perform paging monitoring on the more than one PO2 to receive the second paging message.
  • the first terminal device may blindly transmit the second paging message, for example, the first terminal device may transmit the second paging message more than once.
  • Paging message the first terminal device sends N2 (N2 is a positive integer) PSCCH monitoring occasions (PSCCH monitoring occasion) or the next side link after sending the second paging message or the control information related to the second paging message If the second paging message is sent in the resource (for example, SL slot), if the second terminal device receives the second paging message correctly, it can no longer monitor the subsequent side link resources; otherwise, the second terminal device keeps monitoring until after PO2 N2 side link resources (for example, SL slot) for receiving the second paging message.
  • N2 is a positive integer
  • PSCCH monitoring occasion PSCCH monitoring occasion
  • Embodiment 5 since there is more than one PO2 after one PO1 or the PDSCH indicated by the PDCCH in PO1, in Embodiment 5, the second search can also be retransmitted on the more than one PO2. paging message, the second terminal device needs to monitor the more than one PO2 to receive the second paging message.
  • the remote UE can monitor the predetermined second paging occasion after the relay UE receives the first paging occasion related to the first paging message sent by the network device, thus, the relay UE and The remote UE can have a consistent understanding of the second paging opportunity.
  • the remote UE does not have to continuously monitor the PSCCH or continuously receive the paging messages on the side link. Therefore, the power consumption of the remote UE can be reduced, and the radio frequency of the side link can be saved. resource.
  • An embodiment of the present application provides an apparatus for sending and receiving signals, which is applied to a first terminal device, for example, a relay UE.
  • Fig. 7 is a schematic diagram of the device for transmitting and receiving signals in the embodiment of the third aspect.
  • the device for transmitting and receiving signals 700 includes a first transceiving unit 701, and the first transceiving unit 701 is configured as:
  • the second paging occasion is determined based on the first paging occasion.
  • the second paging occasion has a predetermined time offset relative to the first paging occasion or the PDSCH indicated by the PDCCH in the first paging occasion.
  • the time offset is configured by the network device, or is preconfigured, or is configured by the second terminal device.
  • the time offset is the time offset in the sidelink (sidelink) sending resource pool of the first terminal device, or the time offset in the sidelink (sidelink) receiving resource pool of the second terminal device time offset.
  • the second paging occasion is after the first paging occasion or after the PDSCH indicated by the PDCCH in the first paging occasion in the side link transmission resource pool of the first terminal device Kth side link time slot (slot), K is a natural number.
  • K is 1.
  • the second paging occasion is after the first paging occasion or after the PDSCH indicated by the PDCCH in the first paging occasion in the side link receiving resource pool of the second terminal device
  • the Lth side link time slot (slot), L is a natural number.
  • L is 1.
  • the second paging occasion is obtained by calculating parameters, wherein the parameters used to calculate the second paging occasion are not exactly the same as the parameters used to calculate the first paging occasion .
  • the parameters used to calculate the second paging occasion include at least one of the following parameters: paging discontinuous reception period, the number of paging radio frames in the paging discontinuous reception period, paging The number of paging occasions in the radio frame and the offset value for determining the paging radio frame.
  • the paging discontinuous reception cycle (paging DRX cycle) is in units of uplink time slots, or in units of side link time slots.
  • the parameters used for calculating the second paging occasion are configured by the network device, or are pre-configured, or are configured by the second terminal device.
  • the first paging occasion occurs repeatedly in the time domain
  • the first terminal device After receiving the first paging occasion of the first paging message or at more than one second paging occasions after the PDSCH indicated by the PDCCH in the first paging occasion, the first terminal device sends a message to the second terminal The device (remote UE) sends the second paging message.
  • the second paging occasions corresponding to the at least two second terminal devices are completely overlapped, partially overlapped or not overlapped in the time domain.
  • the first terminal device sends the second paging message in the next PSCCH monitoring occasion (PSCCH monitoring occasion) or the next side link transmission resource, or, the first terminal device sends the second paging message after the next first paging occasion
  • the second paging message is sent at a paging occasion.
  • the first terminal device sends a second paging message and/or information related to the second paging message to one or at least two second terminal devices (remote UE) at the second paging occasion.
  • Control information wherein the first paging occasions corresponding to the at least two second terminal devices are at least partially overlapped.
  • the first transceiver unit 701 is also configured to:
  • the first terminal device parse the first paging message, wherein, in the case that the first paging message includes paging messages for at least 2 second terminal devices, the at least 2 second terminal devices sending the second paging message and/or the control information related to the second paging message to the at least two second terminal devices at the corresponding second paging occasions, the first paging message is related to the second paging message
  • the calling message is the same.
  • the first transceiver unit 701 is also configured to:
  • the first terminal device parse the first paging message, wherein the first paging message includes In the case of the paging message of the terminal device, and, at the second paging occasion corresponding to the second terminal device, send the second paging message and/or the second paging message to the second terminal device related control information.
  • the first transceiving unit 701 is further configured to make the first terminal device:
  • the first paging message includes paging messages for at least two second terminal devices
  • splitting the first paging message to form a second paging message for each of the second terminal devices wherein, the first terminal device sends the corresponding second paging message to each second terminal device at the second paging occasion corresponding to each of the at least two second terminal devices and/or the second paging message is related to control information.
  • the length of the second paging occasion is related to the SSB or reference signal in the side link and/or equal to X time slots or PSCCH monitoring occasions (PSCCH monitoring occasion), where X is a natural number.
  • the first paging occasion is a paging occasion corresponding to the Uu interface of the second terminal device.
  • the device 700 for sending and receiving signals reference may be made to the embodiment of the first aspect.
  • An embodiment of the present application provides an apparatus for sending and receiving signals, which is applied to a second terminal device, for example, a remote UE.
  • Fig. 8 is a schematic diagram of a device for transmitting and receiving signals in an embodiment of the fourth aspect.
  • the device for transmitting and receiving signals 800 includes a second transceiving unit 801, and the second transceiving unit 801 is configured to:
  • the second paging occasion is located in the first paging time domain in the time domain
  • the first timing is the timing when the first terminal device receives the first paging message.
  • the second paging occasion is determined based on the first paging occasion.
  • the second paging occasion has a predetermined time offset relative to the first paging occasion or the PDSCH indicated by the PDCCH in the first paging occasion.
  • the time offset is configured by the network device, or is preconfigured, or is configured by the first terminal device.
  • the time offset is a time offset in a sidelink (sidelink) sending resource pool of the first terminal device, or a sidelink (sidelink) receiving resource pool of the second terminal device time offset in .
  • the second paging occasion is the first paging occasion in the side link transmission resource pool of the first terminal device after the first paging occasion or after the PDSCH indicated by the PDCCH in the first paging occasion K side link time slots (slots), K is a natural number.
  • K is 1.
  • the second paging opportunity is the second paging opportunity in the side link receiving resource pool of the second terminal device after the first paging occasion or after the PDSCH indicated by the PDCCH in the first paging occasion L side link time slots (slots), where L is a natural number.
  • L is 1.
  • the second paging occasion is obtained by calculating parameters, wherein the parameters used to calculate the second paging occasion are not exactly the same as the parameters used to calculate the first paging occasion .
  • the parameters used to calculate the second paging opportunity include at least one of the following: paging discontinuous reception period, the number of paging radio frames in the paging discontinuous reception period, the number of paging radio frames The number of paging occasions and the offset value for determining the paging radio frame.
  • the paging discontinuous reception cycle (paging DRX cycle) is in units of uplink time slots, or in units of side link time slots.
  • the parameters used for calculating the second paging occasion are configured by the network device, or are pre-configured, or are configured by the first terminal device.
  • the first paging occasion occurs repeatedly in the time domain
  • the second terminal device In more than one second paging occasion after the first paging occasion at which the first terminal equipment receives the first paging message or after the PDSCH indicated by the PDCCH in the first paging occasion, the second terminal device, Perform paging monitoring.
  • the second paging occasions corresponding to the at least two second terminal devices are completely overlapped, partially overlapped or not overlapped in the time domain.
  • the second terminal device when the second paging message is not successfully received, the second terminal device performs paging monitoring in the next PSCCH monitoring occasion (PSCCH monitoring occasion) or the next side link transmission resource, or , the second terminal device performs paging monitoring at a second paging occasion after the next first paging occasion.
  • PSCCH monitoring occasion PSCCH monitoring occasion
  • the second terminal device when the second paging message is not successfully received, performs paging monitoring in the next PSCCH monitoring occasion (PSCCH monitoring occasion) or the next side link transmission resource, or , the second terminal device performs paging monitoring at a second paging occasion after the next first paging occasion.
  • the length of the second paging occasion is related to the SSB or reference signal in the side link, and/or equal to X time slots or PSCCH monitoring occasions (PSCCH monitoring occasion), where X is a natural number.
  • the first paging occasion is a paging occasion corresponding to the Uu interface of the second terminal device.
  • An embodiment of the present application also provides a communication system, where the communication system may include a first terminal device, a second terminal device, and a network device.
  • the first terminal device is, for example, a relayUE
  • the second terminal device is, for example, a remote UE
  • the network device is, for example, a gNB.
  • the network device can communicate with the first terminal device through the Uu link, and the first terminal device and the second terminal device can communicate through the sidelink.
  • Fig. 9 is a schematic diagram of a terminal device according to an embodiment of the fifth aspect, where the terminal device may be a first terminal device or a second terminal device.
  • the terminal device 900 may include a processor 910 and a memory 920 ; the memory 920 stores data and programs, and is coupled to the processor 910 . It is worth noting that this figure is exemplary; other types of structures may also be used in addition to or instead of this structure to implement telecommunications functions or other functions.
  • the processor 910 may be configured to execute a program to implement the method described in the embodiment of the first aspect or the embodiment of the second aspect.
  • the terminal device 900 may further include: a communication module 930 , an input unit 940 , a display 950 , and a power supply 960 .
  • a communication module 930 the terminal device 900 may further include: a communication module 930 , an input unit 940 , a display 950 , and a power supply 960 .
  • the functions of the above components are similar to those of the prior art, and will not be repeated here. It should be noted that the terminal device 900 does not necessarily include all the components shown in FIG. have technology.
  • Fig. 10 is a schematic diagram of a network device of an embodiment of the fifth aspect.
  • the network device 1000 may include: a processor 1010 (such as a central processing unit CPU) and a memory 1020 ; the memory 1020 is coupled to the processor 1010 .
  • the memory 1020 can store various data; in addition, it also stores a program 1030 for information processing, and executes the program 1030 under the control of the processor 1010 .
  • the processor 1010 may be configured to assist the first terminal device and the second terminal device to execute programs to implement the methods described in the embodiments of the first aspect and the second aspect.
  • the network device 1000 may further include: a transceiver 1040 and an antenna 1050 ; wherein, the functions of the above components are similar to those of the prior art, and will not be repeated here. It should be noted that the network device 1000 does not necessarily include all the components shown in FIG. 10 ; in addition, the network device 1000 may also include components not shown in FIG. 10 , and reference may be made to the prior art.
  • An embodiment of the present application further provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the methods described in the embodiments of the first aspect and the second aspect.
  • the embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program causes the terminal device to execute the methods described in the first and second embodiments.
  • the above devices and methods in this application can be implemented by hardware, or by combining hardware and software.
  • the present application relates to a computer-readable program that, when executed by a logic component, enables the logic component to realize the above-mentioned device or constituent component, or enables the logic component to realize the above-mentioned various methods or steps.
  • the present application also relates to storage media for storing the above programs, such as hard disks, magnetic disks, optical disks, DVDs, flash memories, and the like.
  • the method/device described in conjunction with the embodiments of the present application may be directly embodied as hardware, a software module executed by a processor, or a combination of both.
  • one or more of the functional block diagrams shown in the figure and/or one or more combinations of the functional block diagrams may correspond to each software module or each hardware module of the computer program flow.
  • These software modules may respectively correspond to the steps shown in the figure.
  • These hardware modules for example, can be realized by solidifying these software modules by using a Field Programmable Gate Array (FPGA).
  • FPGA Field Programmable Gate Array
  • a software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or any other form of storage medium known in the art.
  • a storage medium can be coupled to the processor such that the processor can read information from, and write information to, the storage medium, or it can be an integral part of the processor.
  • the processor and storage medium can be located in the ASIC.
  • the software module can be stored in the memory of the mobile terminal, or can be stored in a memory card that can be inserted into the mobile terminal.
  • the software module can be stored in the MEGA-SIM card or large-capacity flash memory device.
  • One or more of the functional blocks described in the accompanying drawings and/or one or more combinations of the functional blocks can be implemented as a general-purpose processor, a digital signal processor (DSP) for performing the functions described in this application ), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any suitable combination thereof.
  • DSP digital signal processor
  • ASICs application specific integrated circuits
  • FPGAs field programmable gate arrays
  • One or more of the functional blocks described in the drawings and/or one or more combinations of the functional blocks can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors processor, one or more microprocessors in communication with a DSP, or any other such configuration.
  • a method for sending and receiving signals, applied to the first terminal device comprising:
  • the second paging occasion is determined according to the first paging occasion.
  • the second paging occasion has a predetermined time offset relative to the first paging occasion or a physical downlink shared channel (PDSCH) indicated by a physical downlink control channel (PDCCH) in the first paging occasion.
  • PDSCH physical downlink shared channel
  • PDCCH physical downlink control channel
  • the time offset is configured by the network device, or is pre-configured, or is configured by the second terminal device.
  • the time offset is a time offset in a sidelink (sidelink) sending resource pool of the first terminal device, or a time offset in a sidelink (sidelink) receiving resource pool of the second terminal device. shift.
  • the second paging occasion is after the first paging occasion or after the physical downlink shared channel (PDSCH) indicated by the physical downlink control channel (PDCCH) in the first paging occasion.
  • PDSCH physical downlink shared channel
  • PDCCH physical downlink control channel
  • the second paging occasion is after the first paging occasion or after the physical downlink shared channel (PDSCH) indicated by the physical downlink control channel (PDCCH) in the first paging occasion.
  • PDSCH physical downlink shared channel
  • PDCCH physical downlink control channel
  • the second paging occasion is
  • the parameters used for calculating the second paging occasion are not exactly the same as the parameters used for calculating the first paging occasion.
  • the parameters used to calculate the second paging opportunity include at least one of the following parameters: paging discontinuous reception period, the number of paging radio frames in the paging discontinuous reception period, and the paging occasion of the paging radio frame and determine the offset value of the paging radio frame.
  • the unit of the paging discontinuous reception cycle (paging DRX cycle) is the uplink slot, or the unit of the side link slot.
  • the parameters used for calculating the second paging occasion are configured by the network device, or are pre-configured, or are configured by the second terminal device.
  • the first paging occasion occurs repeatedly in the time domain
  • PDSCH physical downlink shared channel
  • PDCCH physical downlink control channel
  • the first terminal device After the first terminal device receives the first paging occasion of the first paging message or after the physical downlink shared channel (PDSCH) indicated by the physical downlink control channel (PDCCH) in the first paging occasion In more than one second paging occasion, sending the second paging message and/or control information related to the second paging message to a second terminal device (remote UE).
  • a second terminal device remote UE
  • the second paging occasions corresponding to the at least two second terminal devices are completely overlapped, partially overlapped or not overlapped in the time domain.
  • the first terminal device sends the second paging message and/or the control information of the second paging message in the next PSCCH monitoring occasion (PSCCH monitoring occasion) or the next side link transmission resource, or, the The first terminal device sends the second paging opportunity after the next first paging occasion or at a second paging occasion after the physical downlink shared channel (PDSCH) indicated by the physical downlink control channel (PDCCH) in the first paging occasion. Control information related to the paging message and/or the second paging message.
  • PSCCH monitoring occasion PSCCH monitoring occasion
  • PDSCH physical downlink shared channel
  • PDCCH physical downlink control channel
  • the first terminal device sends a second paging message and/or control information related to the second paging message to one or at least two second terminal devices (remote UEs) at the second paging occasion,
  • the first paging occasions corresponding to the at least two second terminal devices are at least partially overlapped.
  • the first terminal device parses the first paging message
  • the first paging message includes paging messages for at least 2 second terminal devices
  • the first paging message is the same as the second paging message.
  • the first terminal device parsing the first paging message
  • the first paging message includes a paging message for one second terminal device
  • the first terminal device parses the first paging message
  • the first paging message includes paging messages for at least two second terminal devices, splitting the first paging message to form a second paging message for each of the second terminal devices message,
  • the first terminal device sends the corresponding second paging message and/or the second Control information related to paging messages.
  • the length of the second paging occasion is related to the SSB or reference signal in the side link, and/or equal to X time slots or PSCCH monitoring occasions (PSCCH monitoring occasion), where X is a natural number.
  • the first paging occasion is a paging occasion corresponding to the second terminal device on the Uu interface.
  • a method for sending and receiving signals, applied to a second terminal device comprising:
  • the second paging occasion is located after the first paging occasion in the time domain
  • the first timing is the timing when the first terminal device receives the first paging message.
  • the second paging occasion is determined according to the first paging occasion.
  • the second paging occasion has a predetermined time offset relative to the first paging occasion or a physical downlink shared channel (PDSCH) indicated by a physical downlink control channel (PDCCH) in the first paging occasion.
  • PDSCH physical downlink shared channel
  • PDCCH physical downlink control channel
  • the time offset is configured by the network device, or is pre-configured, or is configured by the first terminal device.
  • the time offset is a time offset in a sidelink (sidelink) sending resource pool of the first terminal device, or a time offset in a sidelink (sidelink) receiving resource pool of the second terminal device. shift.
  • the second paging occasion is after the first paging occasion or after the physical downlink shared channel (PDSCH) indicated by the physical downlink control channel (PDCCH) in the first paging occasion.
  • PDSCH physical downlink shared channel
  • PDCCH physical downlink control channel
  • the second paging occasion is after the first paging occasion or after the physical downlink shared channel (PDSCH) indicated by the physical downlink control channel (PDCCH) in the first paging occasion.
  • PDSCH physical downlink shared channel
  • PDCCH physical downlink control channel
  • the second paging opportunity is obtained by calculating parameters
  • the parameters used for calculating the second paging occasion are not exactly the same as the parameters used for calculating the first paging occasion.
  • the parameters used to calculate the second paging opportunity include at least one of the following: a paging discontinuous reception cycle, the number of paging radio frames in the paging discontinuous reception cycle, and the number of paging opportunities of the paging radio frame and determine the offset value of the paging radio frame.
  • the unit of the paging discontinuous reception cycle is the uplink time slot, or the unit of the side link time slot.
  • the parameters for calculating the second paging occasion are configured by the network device, or are pre-configured, or are configured by the first terminal device.
  • the first paging occasion occurs repeatedly in the time domain
  • PDSCH physical downlink shared channel
  • PDCCH physical downlink control channel
  • PDCCH Physical Downlink Control Channel
  • the second paging occasions corresponding to the at least two second terminal devices are completely overlapped, partially overlapped or not overlapped in the time domain.
  • the second terminal device performs paging monitoring at the next PSCCH monitoring occasion (PSCCH monitoring occasion) or the next side link transmission resource, or, the second terminal device performs paging monitoring after the next first paging occasion Paging monitoring is performed at the time of calling.
  • the length of the second paging occasion is related to the SSB or reference signal in the side link, and/or equal to X time slots or PSCCH monitoring occasions (PSCCH monitoring occasion), where X is a natural number.
  • the first paging occasion is a paging occasion corresponding to the second terminal device on the Uu interface.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Un mode de réalisation de la présente invention concerne un dispositif et un procédé d'émission-réception de signal, et un système de communication. Le dispositif d'émission-réception de signal est appliqué à un premier dispositif terminal et comprend une première unité d'émission-réception. La première unité d'émission-réception est configurée pour: surveiller une première occasion de radiomessagerie et recevoir un premier message de radiomessagerie transmis par un périphérique de réseau; et transmettre un second message de radiomessagerie et/ou une information de commande relative au second message de radiomessagerie à un second dispositif terminal (équipement utilisateur distant) à une seconde occasion de radiomessagerie, la seconde occasion de radiomessagerie étant subséquente à la première occasion de radiomessagerie dans un domaine temporel.
PCT/CN2021/110682 2021-08-04 2021-08-04 Procédé et dispositif d'émission-réception de signal, et système de communication WO2023010363A1 (fr)

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Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

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PCT/CN2021/110682 WO2023010363A1 (fr) 2021-08-04 2021-08-04 Procédé et dispositif d'émission-réception de signal, et système de communication

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108307489A (zh) * 2016-08-11 2018-07-20 中兴通讯股份有限公司 信息处理方法、装置、用户设备及基站
US20180324749A1 (en) * 2015-11-26 2018-11-08 Huawei Technologies Co., Ltd. Paging Method and Device
CN109891947A (zh) * 2016-11-04 2019-06-14 惠州Tcl移动通信有限公司 在无线通信系统中通过中继装置进行寻呼和连接建立
US20200404587A1 (en) * 2019-06-24 2020-12-24 Qualcomm Incorporated Power enhancement techniques for vehicle-to-pedestrian wireless communication systems

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180324749A1 (en) * 2015-11-26 2018-11-08 Huawei Technologies Co., Ltd. Paging Method and Device
CN108307489A (zh) * 2016-08-11 2018-07-20 中兴通讯股份有限公司 信息处理方法、装置、用户设备及基站
CN109891947A (zh) * 2016-11-04 2019-06-14 惠州Tcl移动通信有限公司 在无线通信系统中通过中继装置进行寻呼和连接建立
US20200404587A1 (en) * 2019-06-24 2020-12-24 Qualcomm Incorporated Power enhancement techniques for vehicle-to-pedestrian wireless communication systems

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