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WO2018126462A1 - Procédé de communication, dispositif associé, et système - Google Patents

Procédé de communication, dispositif associé, et système Download PDF

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Publication number
WO2018126462A1
WO2018126462A1 PCT/CN2017/070513 CN2017070513W WO2018126462A1 WO 2018126462 A1 WO2018126462 A1 WO 2018126462A1 CN 2017070513 W CN2017070513 W CN 2017070513W WO 2018126462 A1 WO2018126462 A1 WO 2018126462A1
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WO
WIPO (PCT)
Prior art keywords
base station
terminal
link
signal quality
maintenance command
Prior art date
Application number
PCT/CN2017/070513
Other languages
English (en)
Chinese (zh)
Inventor
董雪峰
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 PCT/CN2017/070513 priority Critical patent/WO2018126462A1/fr
Priority to CN201780082575.4A priority patent/CN110178433B/zh
Priority to CN202111058157.6A priority patent/CN113727455A/zh
Priority to PCT/CN2017/079017 priority patent/WO2018126547A1/fr
Publication of WO2018126462A1 publication Critical patent/WO2018126462A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a communication method, related device, and system.
  • a double connection (Dual Connectivity, DC for short) in the communication technology is a user equipment (User Equipment, UE for short), which refers to a radio resource control (English: Radio Resource Control, RRC) connection state RRC_CONNECTED
  • RRC Radio Resource Control
  • the UE needs to access a primary cell group (English: Master Cell Group, MCG for short) and a secondary cell group (English: Secondary Cell Group, SCG for short).
  • the UE in the RRC_CONNECTED state may be configured to use the radio resources provided by two different eNBs, one as the primary base station ( The master eNodeB (MeNB) provides the MCG, and the secondary eNB (English: Secondary eNB, SeNB for short) provides the SCG.
  • the two eNBs are connected by the X2 interface.
  • the bearer situation of each link between the UE, the MeNB, the SeNB, and the core network is as shown in FIG. 1.
  • the UE is in the link in the MCG
  • the UE is in the SCG.
  • the link between the link between the MeNB and the SeNB, the link between the MeNB and the CN, and the link between the SeNB and the CN can carry the control plane (English: control plane, CP: data) and the user plane.
  • Control plane referred to as UP data
  • the line in Figure 1 represents the link
  • the larger ellipse indicates the range of the MCG
  • the smaller ellipse indicates the range of the SCG.
  • the network configures the UE to exit the DC mode (along with modifying the link between the UE and the eNB, and the eNB and the EPC). Between the links). If the UE is in the RRC_CONNECTION state and there is no DC connection, when the radio signal quality or traffic bearer satisfies the condition of DC entry, the network configures the UE to enter the DC (with the modification of the UE and the eNB) The link between, and the link between the eNB and the EPC).
  • the MCG in the Tight interworking mode using the DC mode adopts the LTE technology
  • the SCG adopts the 5G technology, which is adopted by the LTE technology and the 5G technology.
  • the technology will vary in throughput and latency, causing the network to frequently switch to the DC state and exit the DC state. Switching to the DC state is accompanied by the establishment of the link, and exiting the DC state is accompanied by the logout of the link;
  • the establishment or deregistration of the link in the MCG/SCG requires the interaction between the MeNB/SeNB and the CN. Therefore, when the 5G technology and the LTE technology are involved in the DC, the number of interaction signaling between the MeNB/SeNB and the CN is significantly improved. , greatly increased communication overhead.
  • the embodiment of the invention discloses a communication method, a related device and a system, which can save communication overhead between the base station and the core network.
  • the embodiment of the present invention provides a communication method, where the method is applied to a dual connectivity scenario, in which the terminal maintains a connection with the first base station and the second base station by using a radio resource control link, and the The throughput of the first base station is higher than the throughput of the second base station, the method includes: the terminal acquiring the first signal quality and the first bandwidth of the terminal in the first base station; when the first signal quality is higher than the pre- When the second signal quality is set, and the first bandwidth meets the requirement of the service that carries the terminal, the terminal sends a link maintenance command, where the link maintenance command is used to instruct the second base station to connect the terminal to the second base station.
  • the RRC link is configured as a dormant state.
  • the terminal requests the second base station to configure the link between the terminal and the second base station to be in a dormant state, so that the terminal can transmit control plane data through the link between the terminal and the second base station.
  • User plane data without transmitting control plane data and user plane data through the link between the terminal and the first base station; since the base station configures the link to sleep state without canceling the link, it does not exist
  • the second base station and the core network exchange signaling according to the link logout, which greatly saves the base. The cost of the station and the core network.
  • the second signal quality is a real-time signal quality of the terminal in the second base station, or a preset signal quality threshold.
  • the terminal sends a link maintenance command, including: sending, by the terminal, the first base station The link maintenance command is configured to enable the first base station to send the link maintenance command to the second base station through an X2 interface; or the terminal sends the link maintenance command to the second base station.
  • the terminal sends a link After the command is maintained, the method further includes: acquiring, by the terminal, a third signal quality and a second bandwidth of the terminal in the first base station; when the third signal quality is lower than a preset fourth signal quality, or the second bandwidth is not When the requirement for the service of the terminal is met, the terminal sends a service start command, where the service start command is used to instruct the second base station to configure the radio resource control link of the terminal and the second base station to be in an active state.
  • the terminal requests the second base station to configure the link of the terminal in the second base station to be in an active state, and the process does not need to re-establish the link between the terminal and the second base station, so there is no new
  • the establishment of the link causes the base station to exchange signaling with the core network, which further saves the overhead of the base station and the core network.
  • the embodiment of the present invention provides a communication method, where the method is applied to a dual connectivity scenario, in which the terminal maintains a connection with a base station and a first base station through a radio resource control link, and the base station The throughput is higher than the throughput of the first base station.
  • the base station here may also be referred to as a second base station.
  • the method includes: the base station receives a link maintenance command generated by the terminal; and the base station maintains an instruction according to the link.
  • the indication is that the terminal and the line resource control link of the base station are configured as a dormant state.
  • the terminal requests the second base station to configure the link between the terminal and the second base station to be in a dormant state, so that the terminal can transmit control plane data through the link between the terminal and the second base station.
  • User plane data without transmitting control plane data and user plane data through the link between the terminal and the first base station; since the base station configures the link to sleep state without canceling the link, it does not exist
  • the second base station exchanges signaling with the core network due to the logoff of the link, which greatly saves the overhead of the base station and the core network.
  • the base station described herein refers to the second base station.
  • the base station receives the link maintenance command generated by the terminal, including:
  • the base station according to the indication of the link maintenance instruction, the terminal and the base station After the line resource control link is configured as the dormant state, the base station further includes: the base station receives the service start command; and the base station configures the line resource control link of the terminal and the base station to be active according to the indication of the service start command. State.
  • the terminal requests the second base station to configure the link of the terminal in the second base station to be in an active state, and the process does not need to re-establish the link between the terminal and the second base station, so there is no new
  • the establishment of the link causes the base station to exchange signaling with the core network, which further saves the overhead of the base station and the core network.
  • a base station as described herein refers to a second base station.
  • an embodiment of the present invention provides a terminal, where the terminal maintains a connection with a first base station and a second base station by using a RRC link, and the throughput of the first base station is higher than that of the second base station.
  • the terminal includes: a processor and a transmitter coupled to the processor, wherein: the processor is configured to: acquire a first signal quality and a first bandwidth of the terminal in the first base station; Transmitting a link maintenance command, where the first signal quality is higher than a preset second signal quality, and the first bandwidth satisfies a requirement of a service carrying the terminal, where the link maintenance command is used to indicate the first
  • the second base station configures the radio resource control link of the terminal and the second base station to a dormant state.
  • the terminal requests the second base station to configure the link between the terminal and the second base station to be in a dormant state, so that the terminal can transmit control plane data through the link between the terminal and the second base station.
  • User plane data without transmitting control plane data and user plane data through the link between the terminal and the first base station; since the base station configures the link to sleep state without canceling the link, it does not exist
  • the second base station exchanges signaling with the core network due to the logoff of the link, which greatly saves the overhead of the base station and the core network.
  • the second signal quality is a real-time signal quality of the terminal in the second base station, or a preset signal quality threshold.
  • the transmitter sends a link maintenance command, specifically: sending the first base station
  • the link maintenance command is configured to enable the first base station to send the link maintenance command to the second base station through an X2 interface; or send the link maintenance command to the second base station.
  • the transmitter sending chain After the path is maintained, the processor is further configured to: acquire a third signal quality and a second bandwidth of the terminal in the first base station; the transmitter is further configured to: when the third signal quality is lower than a preset And transmitting, by the service start command, the service start command, where the second base station is used to indicate the radio resource control link between the terminal and the second base station, where the second signal quality does not meet the requirement of the service that carries the terminal. Configured to be active state.
  • the third signal quality of the terminal in the dual-connected DC scenario in the second base station is not good enough, or the second bandwidth of the terminal in the second base station does not satisfy the service that carries the terminal.
  • the request the terminal requests the second base station to configure the link of the terminal in the second base station to be in an active state, and the process does not need to re-establish the link between the terminal and the second base station, so there is no new
  • the establishment of the link causes the base station to exchange signaling with the core network, which further saves the overhead of the base station and the core network.
  • an embodiment of the present invention provides a base station, which may also be referred to as a second base station, and the base station and the first base station respectively maintain a connection with the terminal through a RRC link, and the throughput of the first base station is high.
  • the base station includes a processor and a receiver, wherein: the receiver is configured to: receive a link maintenance instruction generated by the terminal; the processor is configured to: according to the indication of the link maintenance instruction, The line resource control link of the terminal and the base station is configured as a dormant state.
  • the terminal requests the second base station to configure the link between the terminal and the second base station to be in a dormant state, so that the terminal can transmit control plane data through the link between the terminal and the second base station.
  • User plane data without transmitting control plane data and user plane data through the link between the terminal and the first base station; since the base station configures the link to sleep state without canceling the link, it does not exist
  • the second base station exchanges signaling with the core network due to the logoff of the link, which greatly saves the overhead of the base station and the core network.
  • the receiver receives a link maintenance command generated by the terminal, specifically, receiving a link maintenance command sent by the first base station, where the A link maintenance command of a base station is sent by the terminal and sent to the first base station; or the link maintenance command generated and transmitted by the terminal is received.
  • the processor according to the indication of the link maintenance instruction, the terminal and the base station After the line resource control link is configured as a dormant state, the receiver is also used to: The service start command is received; the processor is further configured to: configure the line resource control link of the terminal and the base station to be an active state according to the indication of the service start command.
  • the third signal quality of the terminal in the dual-connected DC scenario in the second base station is not good enough, or the second bandwidth of the terminal in the second base station does not satisfy the service that carries the terminal.
  • the request the terminal requests the second base station to configure the link of the terminal in the second base station to be in an active state, and the process does not need to re-establish the link between the terminal and the second base station, so there is no new
  • the establishment of the link causes the base station to exchange signaling with the core network, which further saves the overhead of the base station and the core network.
  • an embodiment of the present invention provides a terminal, where the terminal maintains a connection with a first base station and a second base station by using a radio resource control link, and a throughput of the first base station is higher than a throughput of the second base station.
  • the terminal includes a first acquiring unit and a first sending unit, where the first acquiring unit is configured to acquire a first signal quality and a first bandwidth of the terminal in the first base station; When the first signal quality is higher than the preset second signal quality, and the first bandwidth satisfies the requirement of the service that carries the terminal, the link maintenance command is used to indicate that the second base station is the terminal
  • the radio resource control link with the second base station is configured as a dormant state.
  • the terminal requests the second base station to configure the link between the terminal and the second base station to be in a dormant state, so that the terminal can transmit control plane data through the link between the terminal and the second base station.
  • User plane data without transmitting control plane data and user plane data through the link between the terminal and the first base station; since the base station configures the link to sleep state without canceling the link, it does not exist
  • the second base station exchanges signaling with the core network due to the logoff of the link, which greatly saves the overhead of the base station and the core network.
  • the second signal quality is a real-time signal quality of the terminal in the second base station, or a preset signal quality threshold.
  • the first sending unit sends a link maintenance command, specifically: A base station sends a link maintenance command to enable the first base station to send the link maintenance command to the second base station through an X2 interface; or send the link maintenance command to the second base station.
  • the terminal further includes And a second obtaining unit, configured to acquire a third signal quality and a second bandwidth of the terminal in the first base station after the first sending unit sends a link maintenance command; a sending unit, configured to send a service start instruction, where the third signal quality is lower than a preset fourth signal quality, or the second bandwidth does not meet the requirement of the service that carries the terminal, where the service start command is used to indicate
  • the second base station configures the radio resource control link of the terminal and the second base station to an active state.
  • the terminal requests the second base station to configure the link of the terminal in the second base station to be in an active state, and the process does not need to re-establish the link between the terminal and the second base station, so there is no new
  • the establishment of the link causes the base station to exchange signaling with the core network, which further saves the overhead of the base station and the core network.
  • the embodiment of the present invention provides a base station, where the base station is also referred to as a second base station, and the base station and the first base station respectively maintain a connection with the terminal through a RRC link, and the first base station
  • the throughput is higher than the throughput of the base station
  • the base station includes a processor and a receiver
  • the base station includes a first receiving unit and a first configuration unit, wherein the first receiving unit is configured to receive a link maintained by the terminal
  • the first configuration unit is configured to configure, according to the indication of the link maintenance instruction, the line resource control link of the terminal and the base station to a dormant state.
  • the terminal requests the second base station to configure the link between the terminal and the second base station to be in a dormant state, so that the terminal can pass the link between the terminal and the second base station. Transmitting control plane data and user plane data without transmitting control plane data and user plane data through a link between the terminal and the first base station; since the base station configures the link to sleep state, the chain is not logged out Therefore, there is no interaction between the second base station and the core network due to the logout of the link, which greatly saves the overhead of the base station and the core network.
  • the first receiving unit receives a link maintenance command that is generated by the terminal, specifically: receiving a link maintenance command sent by the first base station, where The link maintenance command of the first base station is generated by the terminal and sent to the first base station; or the link maintenance command generated and transmitted by the terminal is received.
  • the base station further includes a second receiving unit and a second configuration unit, where the The receiving unit is configured to: after the first configuration unit configures the line resource control link of the terminal and the base station to be in a dormant state according to the indication of the link maintenance instruction, receive a service start command; the second configuration unit And configured to configure the line resource control link of the terminal and the base station to be in an active state according to the instruction of the service start command.
  • the terminal requests the second base station to configure the link of the terminal in the second base station to be in an active state, and the process does not need to re-establish the link between the terminal and the second base station, so there is no new
  • the establishment of the link causes the base station to exchange signaling with the core network, which further saves the overhead of the base station and the core network.
  • the embodiment of the present invention provides a communication system, where the communication system includes a terminal and a base station, where the terminal is the third aspect, or any possible implementation manner of the third aspect, or the fifth aspect, or the fifth The terminal described in any of the possible implementations of the aspect; the base station is the fourth aspect, or any possible implementation manner of the fourth aspect, or the sixth aspect, or any possible implementation of the sixth aspect The base station described in the manner.
  • the terminal requests the second base station to configure the link between the terminal and the second base station to be in a dormant state, so that the terminal can transmit a control plane through the link between the terminal and the second base station.
  • the terminal requests the second base station to configure the link of the terminal in the second base station to be in an active state, and the process does not need to re-establish the link between the terminal and the second base station, so there is no new link
  • the establishment of the path causes the base station to exchange signaling with the core network, which further saves the overhead of the base station and the core network.
  • FIG. 1 is a schematic diagram of a scenario of a communication system in the prior art
  • FIG. 2 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a scenario of a communication system according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of a communication method according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of interaction of a communication method according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of interaction of still another communication method according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of still another terminal according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of another base station according to an embodiment of the present invention.
  • the terminal in the embodiment of the present invention may be a user equipment UE, for example, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a mobile internet device (English: mobile internet device, abbreviated as: MID), and a wearable device (such as a smart watch (such as The iWatch, etc.), the smart phone, the pedometer, etc., may also be other devices that can be accessed in the cellular mobile network.
  • a user equipment UE for example, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a mobile internet device (English: mobile internet device, abbreviated as: MID), and a wearable device (such as a smart watch (such as The iWatch, etc.), the smart phone, the pedometer, etc., may also be other devices that can be accessed in the cellular mobile network.
  • a user equipment UE for example, a mobile phone, a tablet computer, a notebook computer, a palmtop computer,
  • the user equipment in the embodiment of the present invention may be connected to the network based on the dual connectivity DC technology, the dual connectivity technology involves the MCG and the SCG, the base station providing the MCG is referred to as the second base station, and the base station providing the SCG is referred to as the first base station.
  • the MCG and the SCG in the embodiment of the present invention adopt different wireless communication technologies (may also be described as different wireless communication technologies used by the first base station and the second base station), and the throughput of the communication technology adopted by the SCG is higher than the MCG.
  • the throughput of the adopted communication technology (which may also be described as the throughput of the first base station is higher than the throughput of the second base station), for example, 5G, fourth generation mobile communication technology (English: the 4th Generation mobile communication, referred to as : 4G), LTE, third-generation mobile communication technology (English: 3rd-Generation, referred to as: 3G), second-generation mobile communication technology specifications (English: 2-Generation wireless telephone technology, referred to as: 2G) are different communication Technology, in which the throughput is 5G, 4G, LTE, 3G, 2G in order from high to low. New communication technologies are also likely to be introduced in the future, and the throughput of new communication technologies is usually higher.
  • FIG. 2 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • the communication system includes a core network CN, a UE, an LTE-based base station eNB, and a 5G-based base station gNB, where the core network CN can
  • the 5G next-generation core network (English: Next Gen Core) can also be a 4G core network (English: Evolved Packet Core, EPC for short).
  • the UE uses Tight Interworking based on dual-connected DC technology to access the network.
  • the eNB provides the MCG for the UE, that is, the eNB here assumes the task of the MeNB in the background art
  • the gNB provides the SCG for the UE, that is, the gNB here assumes the task of the SeNB in the background art
  • the UE has a radio resource control link (ie, a radio resource control link between the UE and the second base station) in the MCG
  • the UE has a radio resource control link in the SCG (ie, between the UE and the first base station) Radio resource control link)
  • the eNB and the CN There is a radio resource control link between the gNB and the CN, and a radio resource control link exists between the gNB and the CN.
  • FIG. 3 is a schematic diagram of a corresponding scenario.
  • the largest ellipse in FIG. 3 indicates the range of the MCG, and the second largest ellipse indicates the range of the SCG.
  • the smallest ellipse indicates that the signal quality of the UE in the MCG is stronger than that in the SCG.
  • the connection between any two nodes indicates the link between the two nodes.
  • control plane English: control plane, CP for short
  • user plane English: user plane, abbreviation: UP
  • Control the embodiment of the present invention will focus on how to control the UE's link in the MCG (corresponding to the dotted line connecting the UE and the eNB in FIG. 3) to transmit data.
  • the implementation of the communication system 20 can refer to the specific execution flow in the embodiment shown in FIG.
  • FIG. 4 is a schematic flowchart diagram of a communication method according to an embodiment of the present invention, where the method includes but is not limited to the following steps.
  • Step S401 The terminal acquires the first signal quality and the first bandwidth of the first base station.
  • the UE can detect the signal quality of the cell in which the UE resides in real time, so the UE can obtain the signal quality of the SCG in the SCG. Since the SCG is provided by the first base station, it can also be described as acquiring the UE.
  • the signal quality in a base station the currently acquired signal quality may be referred to as a first signal quality.
  • the UE measures the signal strength of the cell in which the UE resides. It is not described here. It can be understood that the signal quality can be received by the reference signal (English: Reference Signal Receiving Power, RSRP for short). ), reference signal reception quality (English: ReferenceSignalReceivingQuality, referred to as: RSRQ), received signal strength indication (English: Received Signal Strength Indication, referred to as: RSSI) and other parameters to measure.
  • the bandwidth of the link of the UE in the cell is a certain value, and the UE can directly obtain the value.
  • the bandwidth sent by the cell can be used to obtain the bandwidth of the link.
  • the bandwidth of the link may also be detected by itself, and the bandwidth of the currently acquired link may be referred to as a first bandwidth.
  • step S402 may be performed, otherwise, the radio resource between the terminal and the second base station is reserved.
  • the current state of the control link ie, the service state
  • the second signal quality here
  • the quantity may be the real-time signal quality of the terminal in the second base station (which may also be described as the real-time signal quality of the terminal in the SCG), or a preset signal quality threshold.
  • the service requirements here may include data transmission requirements.
  • the UE needs to download a high-definition video with a very large amount of data.
  • the UE needs to receive more data in a unit time to ensure that the HD video is downloaded as soon as possible;
  • the relatively large bandwidth of the UE receiving data facilitates the UE to receive the HD video in a shorter time, and the UE can determine the required bandwidth according to the size of the data that it is currently transmitting. If the first bandwidth is greater than or equal to the bandwidth required by the UE to transmit data, it indicates that the first bandwidth meets the requirement of the service that carries the terminal.
  • the SCG can provide 10 megabits (M) for the UE and the UE actually needs 15 megabits (M), the SCG cannot meet the requirements of the service carrying the UE, if the SCG can The bandwidth provided for the UE is 10 megabits (M), and the bandwidth actually required by the UE is 5 megabits (M), so the SCG can meet the requirements of the service carrying the UE.
  • the sequence of operations for obtaining the first signal quality and the operation for acquiring the first bandwidth are not limited herein.
  • the throughput of the SCG in which the UE is located is higher than the throughput of the MCG in which the UE is located.
  • the SCG adopts 5G technology
  • the MCG adopts LTE technology, so that the throughput of the SCG is higher than the throughput of the MCG.
  • Step S402 The UE sends a link maintenance command.
  • the link maintenance command is used to trigger the second base station to configure the link of the UE in the MCG to a dormant state.
  • the second base station may configure the link of the UE in the MCG to be in a different state according to the requirement of the UE, and the state of the link may be a dormant state (English: dormant state) or an active state ( English: active state), etc., where the active state refers to the state in which the link is transmitting traffic, and the dormant state refers to the state in which the link is in an inactive state, but is ready to transmit a new service; therefore, the UE can be It is also possible to configure the base station to make the link of the UE in the MCG in a dormant state, and when the link in the MCG is in a dormant state, the link may transmit information for maintaining the link uninterrupted.
  • the user plane data may not be transmitted.
  • the UE (and possibly the base station) may be configured such that the UE's link in the MCG is in a dormant state, and the UE's link in the MCG is in an active state.
  • the link can Normally transfer various control plane data and user plane data.
  • the UE sends an instruction to the second base station to trigger the base station to configure the UE in the MCG as a dormant state, and the UE sends another command to the second base station to trigger the base station to
  • the link of the UE in the MCG is configured to be in an active state.
  • the instruction in the embodiment of the present invention that indicates that the link of the UE in the MCG is configured to be in a sleep state is a link maintenance command;
  • the link configured as an active state is a service start command.
  • the link of the UE in the MCG is not in a dormant state, and the link enters the dormant state after the base station configures according to the link maintenance command; the UE sends the service.
  • the command is started, the link of the UE in the MCG is not in an active state, and the link enters the active state after the base station performs configuration according to the service start command.
  • Step S403 The base station receives the link maintenance command.
  • the base station is a base station that provides the MCG, that is, the second base station, and the base station receives and receives the link maintenance command to include at least two possibilities.
  • the possibility is that after the UE sends the link maintenance command, the first base station receives The link maintains the command, and then the first base station forwards the link maintenance command to the base station, and accordingly, the base station receives the link maintenance command sent by the first base station; and secondly, the base station receives the sent by the UE.
  • Link maintenance instructions is a base station that provides the MCG, that is, the second base station, and the base station receives and receives the link maintenance command to include at least two possibilities. The possibility is that after the UE sends the link maintenance command, the first base station receives The link maintains the command, and then the first base station forwards the link maintenance command to the base station, and accordingly, the base station receives the link maintenance command sent by the first base station; and secondly, the base station receives the sent by the UE.
  • Link maintenance instructions is
  • Step S404 The base station configures the link of the UE in the MCG to be in a dormant state according to the link maintenance command.
  • the base station configuring the UE in the MCG to be in a dormant state may be implemented by unilaterally setting some parameters for the base station, or may be implemented by the base station negotiating with the UE; when the base station confirms that the After the link in the MCG is configured to be in the dormant state, the UE may send a response response to the UE to notify that the link of the UE in the MCG is in a dormant state. Of course, the response may not be sent to the UE. After the link is configured to be in a dormant state, the UE's transmit power and received power on the link can be saved.
  • steps S405-S408 may be performed after steps S401-S404, and steps S405-S408 are described as follows.
  • Step S405 The terminal acquires its third signal quality and the second bandwidth in the first base station.
  • the manner in which the terminal acquires the third signal quality is the same as the manner in which the first signal quality is obtained, except that the acquisition timings of the two signal qualities are different, and the third signal quality is a link between the UE and the second base station.
  • the manner in which the terminal acquires the second bandwidth is the same as the method of obtaining the first bandwidth, except that the acquisition timing of the two bandwidths is different, and the second bandwidth is the bandwidth acquired when the link between the UE and the second base station is in the dormant state.
  • the embodiment of the present invention further determines whether the third signal quality is smaller than the fourth signal quality, and determines whether the second bandwidth meets the requirement of the service of the bearer terminal.
  • the fourth signal quality herein may be a real-time signal quality of the terminal in the second base station (which may also be described as a real-time signal quality of the terminal in the SCG), or a preset signal.
  • the quality threshold, where the fourth signal quality and the previous second signal quality are both preset signal quality thresholds, the second signal quality and the fourth signal quality may or may not be equal.
  • step S406 may be performed.
  • Case 1 the UE determines that the third signal quality of the UE in the secondary cell group SCG is smaller than the fourth signal quality
  • the second case the UE determines the SCG. The requirements for the service carrying the UE are not met, and in the third case, both situation 1 and case 2 are established.
  • Step S406 The UE sends a service start command, where the service start command is used to trigger the second base station to configure the link of the UE in the MCG as an active state.
  • Step S407 The base station receives the service start instruction.
  • the receiving, by the base station, the service start command includes at least two possibilities.
  • the first possibility is that after the UE sends the service start command, the first base station receives the service start command.
  • the first base station forwards the service start command to the base station (ie, the second base station), and correspondingly, the base station receives the service start command sent by the first base station; and secondly, the base station receives the service start command sent by the UE .
  • Step S408 The base station configures the link of the UE in the MCG as an active state according to the service start command.
  • the base station configuring the link of the UE in the MCG to be in an active state may be implemented by unilaterally setting some parameters for the base station, or may be implemented by negotiating the base station with the UE; After the station confirms that the link of the UE in the MCG is configured to be in an active state, it may send a response response to the UE to notify that the link of the UE in the MCG is configured to be in an active state. The UE sends a response response.
  • FIG. 5 is an interaction diagram of the above possibility one
  • FIG. 6 is an interaction diagram of the above possibility 2.
  • the terminal requests the second base station to configure the link between the terminal and the second base station to be in a dormant state, so that the terminal can transmit through the link between the terminal and the second base station.
  • the terminal requests the second base station to configure the link of the terminal in the second base station to be in an active state, and the process does not need to re-establish the link between the terminal and the second base station, so there is no new link
  • the establishment of the path causes the base station to exchange signaling with the core network, which further saves the overhead of the base station and the core network.
  • FIG. 7 is a flowchart of a terminal 70.
  • the terminal 70 includes a processor 701 and a transmitter 702 coupled to the processor 701.
  • the processor 701 and the transmitter 702 are connected to each other through a bus. .
  • the processor 701 may be one or more central processing units (English: Central Processing Unit, CPU for short). In the case that the processor 701 is a CPU, the CPU may be a single core CPU or a multi-core CPU.
  • Transmitter 702 is configured to transmit a signal to transmit data, wherein:
  • the processor 701 is configured to: acquire a first signal quality and a first band of the terminal in the first base station
  • the transmitter 702 is configured to: send a link maintenance command, where the first signal quality is higher than a preset second signal quality, and the first bandwidth meets a requirement of a service carrying the terminal, the chain
  • the path maintenance command is used to instruct the second base station to configure the radio resource control link of the terminal and the second base station to a dormant state.
  • the terminal requests the second base station to configure the link between the terminal and the second base station to be in a dormant state, so that the terminal can transmit control plane data through the link between the terminal and the second base station.
  • User plane data without transmitting control plane data and user plane data through the link between the terminal and the first base station; since the base station configures the link to sleep state without canceling the link, it does not exist
  • the second base station exchanges signaling with the core network due to the logoff of the link, which greatly saves the overhead of the base station and the core network.
  • the second signal quality is a real-time signal quality of the terminal in the second base station, or is a preset signal quality threshold.
  • the transmitter sends a link maintenance command, specifically: sending a link maintenance command to the first base station, so that the first base station sends the link maintenance command to the first base station through the X2 interface.
  • the second base station or transmitting the link maintenance command to the second base station.
  • the processor is further configured to: acquire a third signal quality and a second bandwidth of the terminal in the first base station; And transmitting, when the third signal quality is lower than a preset fourth signal quality, or the second bandwidth does not meet the requirement of the service that carries the terminal, sending a service start instruction, where the service start command is used to indicate the second
  • the base station configures the radio resource control link of the terminal and the second base station to an active state.
  • the third signal quality of the terminal in the dual-connected DC scenario in the second base station is not good enough, or the second bandwidth of the terminal in the second base station does not satisfy the service that carries the terminal.
  • the request the terminal requests the second base station to configure the link of the terminal in the second base station to be in an active state, and the process does not need to re-establish the link between the terminal and the second base station, There is also no interaction between the base station and the core network due to the establishment of the new link, which further saves the overhead of the base station and the core network.
  • the terminal 70 shown in FIG. 7 if the first signal quality of the terminal in the dual connectivity DC scenario in the first base station is good enough, and the first bandwidth of the terminal in the first base station satisfies the terminal carrying the terminal The demand of the service, the terminal requests the second base station to configure the link between the terminal and the second base station to be in a dormant state, so that the terminal can pass the link between the terminal and the second base station.
  • FIG. 8 is a base station 80 according to an embodiment of the present invention.
  • the base station 80 may also be referred to as a second base station, and the base station 80 and the first base station respectively maintain a connection with the terminal through a radio resource control link.
  • the throughput of the first base station is higher than the throughput of the base station, and the base station 80 includes a processor 801 and a receiver 802 coupled to the processor 801.
  • the processor 801 may be one or more central processing units (English: Central Processing Unit, CPU for short). In the case that the processor 801 is a CPU, the CPU may be a single core CPU or a multi-core CPU.
  • Receiver 802 is configured to receive signals for transmission of data, wherein:
  • the receiver 802 is configured to receive a link maintenance command generated by the terminal, and the processor 801 is configured to: configure the line resource control link of the terminal and the base station to be in a sleep state according to the indication of the link maintenance instruction. Dormant state.
  • the terminal requests the second base station to configure the link between the terminal and the second base station to be in a dormant state, so that the terminal can transmit control through the link between the terminal and the second base station.
  • the receiver receives the link maintenance command generated by the terminal, specifically: receiving a link maintenance command sent by the first base station, where the link maintenance command of the first base station is used by the terminal And sending to the first base station; or receiving the link maintenance command generated and sent by the terminal.
  • the processor after the processor configures the line resource control link of the terminal and the base station to be in a dormant state according to the indication of the link maintenance instruction, the processor is further configured to: receive The service startup command is further configured to: configure the line resource control link of the terminal and the base station to be an active state according to the indication of the service start instruction.
  • the third signal quality of the terminal in the dual-connected DC scenario in the second base station is not good enough, or the second bandwidth of the terminal in the second base station does not satisfy the service that carries the terminal.
  • the request the terminal requests the second base station to configure the link of the terminal in the second base station to be in an active state, and the process does not need to re-establish the link between the terminal and the second base station, so there is no new
  • the establishment of the link causes the base station to exchange signaling with the core network, which further saves the overhead of the base station and the core network.
  • the terminal requests the second base station to configure the link between the terminal and the second base station to be in a dormant state, so that the terminal can pass the link between the terminal and the second base station.
  • FIG. 9 is a schematic diagram of a terminal 90 according to an embodiment of the present invention. Maintaining a connection with the first base station and the second base station by using a radio resource control link, and the throughput of the first base station is higher than the throughput of the second base station, where the terminal includes the first obtaining unit 901 and the first sending
  • the unit 902 is configured to acquire a first signal quality and a first bandwidth of the terminal in the first base station, where the first sending unit 902 is configured to use the first signal quality to be higher than a preset And transmitting, by the second base station, the radio resource control of the second base station and the second base station, when the first bandwidth meets the requirement of the service of the terminal, and sends a link maintenance command
  • the link is configured as a dormant state.
  • the terminal requests the second base station to configure the link between the terminal and the second base station to be in a dormant state, so that the terminal can transmit control plane data through the link between the terminal and the second base station.
  • User plane data without transmitting control plane data and user plane data through the link between the terminal and the first base station; since the base station configures the link to sleep state without canceling the link, it does not exist
  • the second base station exchanges signaling with the core network due to the logoff of the link, which greatly saves the overhead of the base station and the core network.
  • the second signal quality is a real-time signal quality of the terminal in the second base station, or is a preset signal quality threshold.
  • the first sending unit 902 sends a link maintenance command, specifically: sending a link maintenance command to the first base station, so that the first base station connects the link through the X2 interface.
  • the maintenance command is sent to the second base station; or the link maintenance command is sent to the second base station.
  • the terminal further includes a second obtaining unit and a second sending unit, where the second obtaining unit is configured to acquire, after the first sending unit sends 902 a link maintenance command, a third signal quality and a second bandwidth in the first base station; the second sending unit is configured to: when the third signal quality is lower than a preset fourth signal quality, or the second bandwidth does not meet the terminal carrying the terminal.
  • the service start command is sent to instruct the second base station to configure the radio resource control link of the terminal and the second base station to be in an active state.
  • the terminal By running the above unit, if the terminal in the dual connectivity DC scenario is in the second base station If the third signal quality is not good enough, or the second bandwidth of the terminal in the second base station does not meet the requirement of the service carrying the terminal, the terminal requests the second base station to link the terminal in the second base station.
  • the configuration is activated. This process does not need to re-establish the link between the terminal and the second base station. Therefore, there is no interaction between the base station and the core network due to the establishment of the new link, which further saves the base station and the core.
  • the overhead of the network is activated.
  • each unit in FIG. 9 may correspond to the corresponding description of the method embodiment shown in FIG. 4.
  • the terminal 90 shown in FIG. 9 if the first signal quality of the terminal in the dual-connected DC scenario in the first base station is good enough, and the first bandwidth of the terminal in the first base station satisfies the terminal carrying the terminal The demand of the service, the terminal requests the second base station to configure the link between the terminal and the second base station to be in a dormant state, so that the terminal can pass the link between the terminal and the second base station.
  • FIG. 10 is a base station 100 according to an embodiment of the present invention.
  • the base station 100 may also be referred to as a second base station, and the base station 100 and the first base station respectively maintain a connection with the terminal through a radio resource control link.
  • the throughput of the first base station is higher than the throughput of the base station 100
  • the base station includes a processor and a receiver
  • the base station 100 includes a first receiving unit 1001 and a first configuration unit 1002, wherein the first receiving The unit 1001 is configured to receive a link maintenance command generated by the terminal, where the first configuration unit 1002 is configured to configure, according to the indication of the link maintenance instruction, the line resource control link of the terminal and the base station as a dormant state. .
  • the terminal requests the second base station to configure the link between the terminal and the second base station to be in a dormant state, so that the terminal can transmit control through the link between the terminal and the second base station.
  • the first receiving unit 1001 receives the link maintenance command generated by the terminal, specifically: receiving a link maintenance command sent by the first base station, and the link maintenance command of the first base station Generated by the terminal and sent to the first base station; or received the link maintenance command generated and transmitted by the terminal.
  • the base station further includes a second receiving unit and a second configuration unit, where the second receiving unit is configured to: at the first configuration unit, according to the indication of the link maintenance instruction, After the line resource control link of the terminal and the base station is configured as a dormant state, the service start command is received; the second configuration unit is configured to control the link between the terminal and the base station according to the indication of the service start command. Configured to be active state.
  • the terminal requests the second base station to configure the link of the terminal in the second base station to be in an active state, and the process does not need to re-establish the link between the terminal and the second base station, so there is no new
  • the establishment of the link causes the base station to exchange signaling with the core network, which further saves the overhead of the base station and the core network.
  • each unit in the embodiment shown in FIG. 10 may refer to the corresponding description of the method embodiment shown in FIG. 4, and the base station in FIG. 10 is equivalent to the second base station described in FIG.
  • the terminal requests the second base station to configure the link between the terminal and the second base station to be in a dormant state, so that the terminal can pass the link between the terminal and the second base station.
  • the terminal in the communication system 20 of the embodiment of the present invention may be the terminal 70 in the embodiment shown in FIG. 7 or the terminal 90 in the embodiment shown in FIG. 9; the base station in the communication system 20 may be a figure.
  • the terminal requests the second base station to configure the link between the terminal and the second base station to be in a dormant state, so that the terminal can transmit control plane data through the link between the terminal and the second base station.
  • User plane data without transmitting control plane data and user plane data through the link between the terminal and the first base station; since the base station configures the link to sleep state without canceling the link, it does not exist
  • the second base station exchanges signaling with the core network due to the logoff of the link, which greatly saves the overhead of the base station and the core network.
  • the terminal requests the second base station to configure the link of the terminal in the second base station to be in an active state, and the process does not need to re-establish the link between the terminal and the second base station, so there is no new link
  • the establishment of the path causes the base station to exchange signaling with the core network, which further saves the overhead of the base station and the core network.
  • the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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

Abstract

L'invention concerne un procédé de communication, un dispositif associé, et un système. Le procédé est appliqué à un scénario à double connexion dans lequel un terminal maintient respectivement une connexion avec une première station de base et une seconde station de base via une liaison de commande de ressources radio, le débit de la première station de base étant supérieur à celui de la seconde station de base. Le procédé comprend les étapes suivantes : le terminal obtient une première qualité de signal et une première largeur de bande du terminal dans la première station de base ; lorsque la première qualité de signal est supérieure à une seconde qualité de signal prédéfinie et que la première largeur de bande satisfait une exigence de prise en charge d'un service du terminal, le terminal envoie une instruction de maintien de liaison qui est utilisée pour commander à la seconde station de base de configurer la liaison de commande de ressources radio entre le terminal et la seconde station de base de sorte qu'elle soit dans un état dormant. La présente invention économise des surdébits de communication entre des stations de base et un réseau central.
PCT/CN2017/070513 2017-01-06 2017-01-06 Procédé de communication, dispositif associé, et système WO2018126462A1 (fr)

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PCT/CN2017/070513 WO2018126462A1 (fr) 2017-01-06 2017-01-06 Procédé de communication, dispositif associé, et système
CN201780082575.4A CN110178433B (zh) 2017-01-06 2017-03-31 一种通信方法、相关设备及系统
CN202111058157.6A CN113727455A (zh) 2017-01-06 2017-03-31 一种通信方法、相关设备及系统
PCT/CN2017/079017 WO2018126547A1 (fr) 2017-01-06 2017-03-31 Procédé de communication, dispositif associé et système

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