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WO2023122976A1 - Procédés et appareils de communication, terminal, puce, support de stockage, produit et programme - Google Patents

Procédés et appareils de communication, terminal, puce, support de stockage, produit et programme Download PDF

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Publication number
WO2023122976A1
WO2023122976A1 PCT/CN2021/142147 CN2021142147W WO2023122976A1 WO 2023122976 A1 WO2023122976 A1 WO 2023122976A1 CN 2021142147 W CN2021142147 W CN 2021142147W WO 2023122976 A1 WO2023122976 A1 WO 2023122976A1
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WO
WIPO (PCT)
Prior art keywords
relay
terminal
relay terminal
remote terminal
timer
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2021/142147
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English (en)
Chinese (zh)
Inventor
张博源
卢前溪
冷冰雪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp Ltd
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 Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to PCT/CN2021/142147 priority Critical patent/WO2023122976A1/fr
Priority to CN202180103388.6A priority patent/CN118120293A/zh
Publication of WO2023122976A1 publication Critical patent/WO2023122976A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters

Definitions

  • the embodiments of the present application relate to the technical field of mobile communication, and specifically relate to a communication method, device, terminal, chip, storage medium, product, and program.
  • Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems are capable of supporting communication with multiple users by sharing available system resources (eg, time, frequency, and power).
  • system resources eg, time, frequency, and power.
  • a wireless communication system may include terminals that can communicate directly with other terminals.
  • a relay terminal may operate as a relay between a base station and a remote terminal (Remote UE).
  • a relay terminal may receive signals from a base station, and forward or retransmit the received signals to a remote terminal.
  • a relay terminal may receive signals from a remote terminal and forward or retransmit the received signals to the base station.
  • Embodiments of the present application provide a communication method, device, terminal, chip, storage medium, product, and program.
  • the embodiment of the present application provides a communication method, the method including:
  • the remote terminal starts or restarts a first timer whose timing duration is the first duration at the first moment;
  • the remote terminal During the operation of the first timer, the remote terminal maintains a first relay link connection; wherein, the first relay link is between the remote terminal and the first relay terminal relay links between them.
  • an embodiment of the present application provides a communication method, the method including:
  • the first relay terminal When the first relay terminal performs cell reselection, the first relay terminal starts or restarts a second timer whose timing duration is the first duration at a third moment;
  • the first relay terminal maintains a first relay link connection; wherein, the first relay link is between the remote terminal and the first relay terminal relay links between them.
  • an embodiment of the present application provides a communication device, and the communication device includes:
  • a starting unit configured to start or restart a first timer with a timing duration of a first duration at a first moment when the first relay terminal performs cell reselection
  • a maintenance unit configured to maintain a first relay link connection during the operation of the first timer; wherein the first relay link is between the remote terminal and the first relay terminal relay links between them.
  • the embodiment of the present application provides a communication device, and the communication device includes:
  • a starting unit configured to start or restart a second timer whose timing duration is the first duration at a third moment when the first relay terminal performs cell reselection;
  • a maintenance unit configured to maintain a first relay link connection during the operation of the second timer; wherein the first relay link is a connection between a remote terminal and the first relay terminal Relay link.
  • the embodiment of the present application provides a remote terminal, including: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute the A method as described in one aspect.
  • the embodiment of the present application provides a first relay terminal, including: a processor and a memory, the memory is used to store a computer program, the processor is used to invoke and run the computer program stored in the memory, and execute The method as described in the second aspect.
  • an embodiment of the present application provides a chip, including: a processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes the method described in the first aspect or the second aspect .
  • the embodiment of the present application provides a computer storage medium for storing a computer program, and the computer program enables a remote terminal to execute the method described in the first aspect or the second aspect.
  • an embodiment of the present application provides a computer program product, including computer program instructions, where the computer program instructions cause a remote terminal to execute the method described in the first aspect or the second aspect.
  • the embodiment of the present application provides a computer program, the computer program causes a remote terminal to execute the method as described in the first aspect or the second aspect.
  • the remote terminal when the first relay terminal performs cell reselection, the remote terminal starts or restarts a first timer with a timing duration of the first duration at the first moment; During the operation of the device, the connection of the first relay link is maintained; wherein, the first relay link is a relay link between the remote terminal and the first relay terminal.
  • the remote terminal when the first relay terminal performs cell reselection, the remote terminal does not immediately release the first relay link connection between the remote terminal and the first relay terminal, so that the relay terminal Instead, during the operation of the first timer, the first relay link connection is maintained, so that the problem of frequent reselection of the relay terminal by the remote terminal can be avoided.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application
  • FIG. 2 is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a method for switching from a direct path to an indirect path provided by the related art
  • FIG. 4 is a schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of another communication method provided by the embodiment of the present application.
  • FIG. 6 is a schematic diagram of the structural composition of a communication device provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of the structural composition of another communication device provided by the embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • the communication system 100 may include a first relay terminal 110 , a network device 120 and a remote terminal 130 .
  • the network device 120 may communicate with the first relay terminal 110 through an air interface.
  • Multi-service transmission is supported between the first relay terminal 110 and the network device 120 .
  • the remote terminal 130 can communicate with the first relay terminal 110 .
  • Multi-service transmission is supported between the remote terminal 130 and the first relay terminal 110 .
  • the remote terminal 130 and the first relay terminal 110 may be located in the same cell or different cells.
  • the embodiment of the present application is only described with the communication system 100 as an example, but the embodiment of the present application is not limited thereto. That is to say, the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (Long Term Evolution, LTE) system, LTE Time Division Duplex (Time Division Duplex, TDD), Universal Mobile Communication System (Universal Mobile Telecommunication System, UMTS), Internet of Things (Internet of Things, IoT) system, Narrow Band Internet of Things (NB-IoT) system, enhanced Machine-Type Communications (eMTC) system, 5G communication system (also known as New Radio (NR) communication system), or future communication systems (such as 6G, 7G communication systems), etc.
  • LTE Long Term Evolution
  • LTE Time Division Duplex Time Division Duplex
  • TDD Time Division Duplex
  • Universal Mobile Telecommunication System Universal Mobile Telecommunication System
  • UMTS Universal Mobile Communication System
  • Internet of Things Internet of Things
  • NB-IoT Narrow Band Internet of Things
  • the network device 120 may be an access network device that communicates with the first relay terminal 110 .
  • the access network device may provide communication coverage for a specific geographical area, and may communicate with the first relay terminal 110 located within the coverage area.
  • the network devices in this embodiment of the present application may include access network devices 121 and/or core network devices 122 .
  • the access network device 121 may include one or a combination of at least two of the following: an evolved base station (Evolutional Node B, eNB or eNodeB) in a Long Term Evolution (Long Term Evolution, LTE) system, a next-generation wireless access network (Next Generation Radio Access Network, NG RAN) equipment, base station (gNB), small station, micro station in NR system, wireless controller in Cloud Radio Access Network (Cloud Radio Access Network, CRAN), wireless fidelity (Wireless- Fidelity, Wi-Fi) access point, transmission reception point (transmission reception point, TRP), relay station, access point, vehicle equipment, wearable device, hub, switch, bridge, router, future evolution of public land mobile Network equipment in the network (Public Land Mobile Network, PLMN), etc.
  • Evolutional Node B, eNB or eNodeB in a Long Term Evolution (Long Term Evolution, LTE) system
  • NG RAN Next Generation Radio Access Network
  • CRAN Cloud Radio Access Network
  • Wi-Fi Wireless-
  • the core network device 122 may be a 5G core network (5G Core, 5GC) device, and the core network device 122 may include one or a combination of at least two of the following: access and mobility management function (Access and Mobility Management Function, AMF), Authentication Server Function (AUSF), User Plane Function (UPF), Session Management Function (SMF), Location Management Function (LMF), Policy Control Function (Policy Control Function, PCF).
  • AMF Access and Mobility Management Function
  • AUSF Authentication Server Function
  • UPF User Plane Function
  • SMF Session Management Function
  • LMF Location Management Function
  • Policy Control Function Policy Control Function
  • PCF Policy Control Function
  • the core network device may also be an Evolved Packet Core (EPC) device of an LTE network, for example, a data gateway (Session Management Function+Core Packet Gateway, SMF+ PGW-C) equipment.
  • EPC Evolved Packet Core
  • SMF+PGW-C can realize the functions of SMF and PGW-C at the same time.
  • the above-mentioned core network device 122 may also be called by other names, or a new network entity may be formed by dividing functions of the core network, which is not limited in this embodiment of the present application.
  • the remote terminal, the first relay terminal or the second relay terminal in this application may be referred to as user equipment (User Equipment, UE), mobile station (Mobile Station, MS), mobile terminal (Mobile Terminal, MT), Subscriber unit, subscriber station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device.
  • user equipment User Equipment, UE
  • MS Mobile Station
  • MT mobile terminal
  • Subscriber unit Subscriber station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device.
  • the remote terminal, the first relay terminal or the second relay terminal may include one or a combination of at least two of the following: a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with a wireless communication function, a computing device or Other processing devices connected to wireless modems, servers, mobile phones, tablets (Pads), wireless computers, PDAs, desktop computers, personal digital assistants, portable media players, smart speakers, navigation Devices, smart watches, smart glasses, smart necklaces and other wearable devices, pedometers, digital TVs, virtual reality (Virtual Reality, VR) first relay terminals, augmented reality (Augmented Reality, AR) first relay terminals, Wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, wireless terminals in smart grid, transportation security safety), wireless terminals in smart cities, wireless terminals in smart homes, and vehicles, vehicle-mounted equipment, vehicle-mounted modules, wireless modems (modems), and handheld devices in the Internet of Vehicles system (handheld), customer first relay terminal (Customer Premise Equipment
  • Fig. 1 is only an illustration of a system applicable to this application, and of course, the method shown in the embodiment of this application can also be applied to other systems.
  • system and “network” are often used interchangeably herein.
  • the term “and/or” in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations.
  • the character "/" in this article generally indicates that the contextual objects are an "or” relationship.
  • the "indication” mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship.
  • A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • the "correspondence" mentioned in the embodiments of the present application may mean that there is a direct correspondence or an indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated. , configuration and configured relationship.
  • pre-defined may refer to defined in the protocol.
  • the "protocol” may refer to a standard protocol in the communication field, for example, it may include the LTE protocol, the NR protocol, and related protocols applied to future communication systems, which is not limited in this application .
  • FIG. 2 is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • a relay terminal can implement a relay between a remote terminal and an access network device.
  • the adaptation layer i.e., Sidelink Rounting Adaptation Protocol (SRAP)
  • SRAP Sidelink Rounting Adaptation Protocol
  • UTRAN Universal Terrestrial Radio Access Network
  • UTRAN Universal Terrestrial Radio Access Network
  • CP Control Plane
  • User Plane, UP radio link layer control
  • RLC Radio Link Control
  • Uu Service Data Adaptation Protocol Service Data Adaptation Protocol, SDAP
  • Packet Data Convergence Protocol Packet Data Convergence Protocol
  • Radio Resource Control Radio Resource Control, RRC
  • RLC Radio Link Control
  • MAC Media Access Control
  • PHY physical layer
  • SDAP, PDCP, SRAP, RLC, MAC, and PHY in this embodiment of the present application may be entities, for example, the SDAP layer may be an SDAP entity.
  • the relay terminal communicates with the remote terminal through the PC5 interface, and the relay terminal communicates with the access network device through the Uu interface.
  • the Uu adaptation layer of the relay terminal supports the uplink bearer mapping between the access PC5 RLC channels, which is used for the relay on the Uu path of the relay terminal and the access to the Uu RLC channel.
  • different end-to-end bearers of the same remote terminal and/or different remote terminals for example, Signaling Radio Bearer (SRB), Data Radio Bearer (DRB)
  • SRB Signaling Radio Bearer
  • DRB Data Radio Bearer
  • N may be an integer greater than or equal to 1.
  • the Uu adaptation layer is used to support the remote terminal identification of the uplink service (multiplexing data from multiple remote terminals).
  • the identification information of the Uu radio bearer of the remote terminal and the identification information of the remote terminal may be included in the uplink Uu adaptation layer, so that the access network device associates the Uu radio bearer of the remote terminal with the received data packet of a specific PDCP entity.
  • the Uu adaptation layer of the relay terminal can be used to support the downlink bearer mapping at the gNB to map the end-to-end radio bearers (SRB, DRB) of the remote terminal to Uu RLC through the Uu path of the relay terminal channel.
  • the Uu adaptation layer can be used to support multiple end-to-end radio bearers (SRB, DRB) of the remote terminal and/or different remote terminals and a downlink N:1 bearer between a Uu RLC channel on the Uu path of the relay terminal Mapping and data multiplexing.
  • the Uu adaptation layer needs to identify the remote terminal that supports downlink services.
  • the identity information of the Uu radio bearer of the remote terminal (for example, may include the layer 2 identifier of the remote terminal) and the identification information of the remote terminal need to be put into the Uu adaptation layer through the gNB at the downlink, so that the relay terminal will transfer from the remote terminal Data packets received by the Uu radio bearer are mapped to its associated PC5 RLC channel.
  • Fig. 3 is a schematic flowchart of a method for switching from a direct path to an indirect path provided by the related art, the method including:
  • the remote terminal sends a measurement report to the network device.
  • the measurement report may include: one or more candidate relay terminals and traditional Uu measurement.
  • uplink and/or downlink information may be transmitted between the remote terminal and the network device.
  • the remote terminal Before sending the measurement report, the remote terminal can filter suitable relay terminals according to the relay selection criteria. For example, the remote terminal may report candidate relay terminals that meet high-level criteria (for example, the value of Sidelink-Reference Signal Receiving Power (Sidelink-Reference Signal Receiving Power, SL-RSRP) is greater than a certain value).
  • high-level criteria for example, the value of Sidelink-Reference Signal Receiving Power (Sidelink-Reference Signal Receiving Power, SL-RSRP) is greater than a certain value).
  • the remote terminal may report at least one of the following: the identifier of the relay terminal, the identifier of the serving cell of the relay terminal, and SL measurement information.
  • the SL measurement quantity can be the SL-RSRP of the candidate relay terminal. If there is no SL-RSRP, use Sidelink Discovery-Reference Signal Receiving Power (Sidelink Discovery-Reference Signal Receiving Power, SD-RSRP).
  • the remote terminal can perform measurement based on the measurement configuration, so as to obtain a measurement report.
  • the measurement configuration may be pre-configured by the remote terminal, or the measurement configuration may be configured by the network device.
  • the remote terminal may determine to send the measurement report to the network device based on the event trigger. For example, the remote terminal sends a measurement report to the network device when it determines that the measurement value of a certain candidate relay terminal is higher than the threshold.
  • Traditional Uu measurement may include the measurement result of the cell where the remote terminal is located.
  • the network device determines to switch the remote terminal to the target relay terminal, and the network device sends an RRC reconfiguration (RRC Reconfiguration) message to the target relay terminal.
  • RRC reconfiguration RRC Reconfiguration
  • the RRC reconfiguration message includes at least one of the following: the identifier of the remote terminal, the layer 2 identifier of the remote terminal, Uu and PC5 RLC configuration for relay, and bearer mapping configuration.
  • the network device sends an RRC reconfiguration message to the remote terminal.
  • the RRC reconfiguration message includes at least one of the following: an identifier of the target relay terminal, a PC5 RLC configuration for the relay service, and a related end-to-end radio bearer.
  • the remote terminal After receiving the RRC reconfiguration message sent by the network device, the remote terminal stops UP and CP transmission through Uu.
  • the step of the network device sending the RRC reconfiguration message to the target relay terminal may be performed successively or simultaneously with the step of the network device sending the RRC reconfiguration message to the remote terminal, which is not limited in this embodiment of the present application. The order in which these two steps are performed.
  • the remote terminal establishes a PC5 connection with the target relay terminal.
  • any one of the remote terminal and the target relay terminal sends a direct link establishment request to the other terminal based on the identity of the other terminal, and performs PC5RRC upon receiving a response message sent by the other terminal.
  • the two terminals exchange at least one of the following: PC5 RLC configuration, bearer configuration, capability information, etc., and then the connection between the remote terminal and the target terminal PC5 is established.
  • the remote terminal sends an RRC reconfiguration complete (RRC Reconfiguration Complete) message to the network device through the relay terminal to complete the path switching process.
  • RRC reconfiguration complete RRC Reconfiguration Complete
  • the information path between the remote terminal and the network device is switched from a direct path to an indirect path, so that the remote terminal realizes the transmission of uplink and/or downlink information with the network device through the relay terminal.
  • the relay terminal needs to immediately release the PC5-RRC connection with the remote terminal and perform relay reselection .
  • the relay terminal is in RRC idle (idle)/inactive (inactive)
  • the remote terminal immediately releases the current PC5-RRC connection and immediately performs relay reselection, there will be The remote terminal frequently reselects the relay terminal.
  • the remote terminal when the relay terminal performs cell reselection, the remote terminal may not immediately release the current PC5-RRC connection. - The RRC connection is kept for a period of time.
  • Fig. 4 is a schematic flow diagram of a communication method provided in the embodiment of the present application. As shown in Fig. 4, the method includes:
  • the remote terminal starts or restarts a first timer with a timing duration of a first duration at a first moment.
  • the remote terminal may receive a notification message sent by the first relay terminal (for example, the following first indication information or second indication information or other information), the notification message is used to indicate that the first relay terminal The terminal performs cell reselection, so that the remote terminal determines that the first relay terminal performs cell reselection based on the notification message.
  • the remote terminal may determine that the first relay terminal performs cell reselection when determining that the first relay terminal transitions from a connected (connected) state to an idle state or an inactive state.
  • the remote terminal may determine that the first The relay terminal performs cell reselection.
  • the embodiment of this application does not limit how the remote terminal determines the method for the first relay terminal to perform cell reselection. Any method by which the remote terminal can determine the first relay terminal for cell reselection is within the protection scope of this application. Inside.
  • the first moment may be the moment when the remote terminal determines that the first relay terminal performs cell reselection.
  • the first moment may be the moment when the notification message is received, or the first moment may be the moment obtained by adding the processing time of the notification message to the moment when the notification message is received, or the first moment may be the moment in response to the notification message time.
  • the remote terminal may start or restart the first timer with a timing duration of the first duration at the first moment based on the configuration information of the first timer.
  • the first timer configuration information may include the first duration, or the first timer configuration information may include the first duration and the first moment.
  • the first timer may be any timer in the remote terminal, or the first timer may be a dedicated timer.
  • the dedicated timer may be configured by the first timer configuration information.
  • the remote terminal maintains the first relay link connection; wherein, the first relay link is the connection between the remote terminal and the first relay Relay link between terminals.
  • the duration corresponding to the running period of the first timer may be greater than 0 and less than or equal to the first duration.
  • the remote terminal maintains the first relay link connection. It can be understood that the remote terminal does not release the first relay link connection. In the case that the remote terminal maintains the first relay link connection, the remote terminal can exchange information with the relay terminal.
  • maintaining the first relay link connection may be referred to as maintaining the first relay link connection, or maintaining the first relay link connection, or not releasing or not disconnecting the first relay link.
  • maintaining the first relay link connection or maintaining the first relay link connection, or not releasing or not disconnecting the first relay link.
  • the remote terminal when the first relay terminal performs cell reselection, the remote terminal starts or restarts the first timer whose timing duration is the first duration; , maintaining the first relay link connection; wherein, the first relay link is a relay link between the remote terminal and the first relay terminal.
  • the remote terminal when the first relay terminal performs cell reselection, the remote terminal does not immediately release the first relay link connection between the remote terminal and the first relay terminal, so that the relay terminal Instead, during the operation of the first timer, the first relay link connection is maintained, so that the problem of frequent reselection of the relay terminal by the remote terminal can be avoided.
  • the first duration is broadcast by a network device in a cell where the remote terminal is located.
  • the network equipment of the cell where the remote terminal is located may mean that the remote terminal is located in the coverage area of the network equipment.
  • the first duration is sent by the network equipment of the cell where the remote terminal is located through first dedicated signaling.
  • the first duration is sent by the first relay terminal through PC5 signaling.
  • the first duration is generated or preconfigured by the remote terminal.
  • the first timer configuration information may be obtained in the following manner:
  • the first timer configuration information is broadcast by the network device of the cell where the remote terminal is located; or, the first timer configuration information is sent by the network device of the cell where the remote terminal is located through a first dedicated signaling or, the first timer configuration information is sent by the first relay terminal through PC5 signaling; or, the first timer configuration information is generated or pre-configured by the remote terminal.
  • the remote terminal may send the first duration or timer configuration information (for example, first configuration information or second configuration information) to the first relay terminal.
  • first duration or timer configuration information for example, first configuration information or second configuration information
  • the second configuration information is determined based on the first configuration information, and the second configuration information may be the same as or different from the first configuration information.
  • the first duration or timer configuration information may be included in a system message (System Information, SI).
  • SI System Information
  • the system message may be broadcast by the network equipment of the cell where the remote terminal is located.
  • the method further includes: when the remote terminal receives the first duration broadcast by the network equipment of the cell where the remote terminal is located or sent through the first dedicated signaling, or, the When the remote terminal generates the first duration, the remote terminal sends the first duration to the first relay terminal.
  • the remote terminal may send the first duration to the first relay terminal through PC5 signaling.
  • the remote terminal after the remote terminal receives the first timer configuration information broadcast by the network equipment of the cell where the remote terminal is located or sent through the first dedicated signaling, or, the remote terminal generates or When the first timer configuration information is preconfigured, the remote terminal sends the timer configuration information to the first relay terminal.
  • the remote terminal may send timer configuration information to the first relay terminal through PC5 signaling.
  • the remote terminal when the first relay terminal performs cell reselection, sends the first duration or timer configuration information to the first relay terminal.
  • the remote terminal may first send the first duration or timer configuration information to the first relay terminal, and then start or restart the first timer with the first duration.
  • the remote terminal may first start or restart a first timer with a timing duration of the first duration, and then send the first duration or timer configuration information to the first relay terminal.
  • the remote terminal may simultaneously send the first duration or timer configuration information to the first relay terminal, and start or restart the first timer whose timing duration is the first duration.
  • the timing for the remote terminal to start or restart the first timer is as follows:
  • the remote terminal starts or restarts the timing duration at the first moment in response to the first indication information sent by the first relay terminal through PC5 signaling to the first duration a first timer; wherein, the first indication information instructs the first relay terminal to perform cell reselection.
  • the remote terminal in response to the second indication information sent by the first relay terminal through PC5 signaling, the remote terminal starts or restarts the timing at the first moment for the first The duration of the first timer; wherein, the second indication information indicates to start or restart the first timer.
  • the first moment may be the time when the response to the first instruction information or the second instruction information is completed or the time when the processing is completed.
  • the timing for the remote terminal to stop the first timer is as follows:
  • the remote terminal stops the first timer at a second moment.
  • the first relay terminal may periodically or aperiodically send the discovery message to the remote terminal.
  • the first relay terminal may send the discovery message to the remote terminal every preset time period.
  • the remote terminal may feed back third feedback information to the first relay terminal, or may not feed back any information to a relay terminal.
  • each discovery message sent by the first relay terminal to the remote terminal may include the identifier of the network device of the cell where the first relay terminal resides.
  • the remote terminal uses the cell identifier in the currently received discovery message
  • the cell identity is determined as the cell identity reselected by the first relay terminal.
  • the remote terminal stops the first timer at the second moment in response to the third indication information sent by the first relay terminal through PC5 signaling; the third indication information Instructing the first relay terminal to successfully enter the RRC connection state.
  • the third indication information may be sent to the first relay terminal by the network device of the cell where the first relay terminal resides, so that the first relay terminal may send the third indication information to the remote terminal.
  • the third indication information is RRC dedicated signaling or UP plane message.
  • the third indication information may be automatically generated by the first relay terminal when it determines that it has successfully entered the RRC connected state.
  • the remote terminal responds to the fourth indication information sent by the first relay terminal through PC5 signaling; stops the first timer at the second moment; the fourth indication information Instructing to stop the first timer.
  • the method further includes:
  • the remote terminal continues to maintain the first relay link connection.
  • stopping the first timer may be referred to as closing the first timer, or terminating the first timer, or interrupting the first timer.
  • the method further includes: when the first timer expires, the remote terminal releases the first relay link connection, and performs relay terminal reselection.
  • the remote terminal when the first relay terminal performs cell reselection, the remote terminal does not immediately release the first relay link, but does not receive the first relay terminal within the first duration. In the case of the third indication information or the fourth indication information, the first relay link is released and relay terminal reselection is performed.
  • the method further includes: the remote terminal releasing the first relay link connection in response to the first release request sent by the first relay terminal through PC5 signaling, and Perform relay terminal reselection; wherein, the first release request indicates to release the first relay link connection.
  • the remote terminal may first release the first relay link connection, and then perform relay terminal reselection. In some other embodiments, the remote terminal may perform the steps of releasing the first relay link connection and reselecting a relay terminal at the same time. In some other embodiments, the remote terminal may perform relay terminal reselection first, and then perform the step of releasing the first relay link connection. For example, when the first timer expires, the remote terminal may maintain the first relay link connection and perform relay terminal reselection. In the case of reselecting the second relay terminal, the remote terminal may simultaneously In the case of having the first relay link connection and the second relay link connection, the remote terminal may release the first relay link connection.
  • the second relay link is a relay link between the remote terminal and the second relay terminal.
  • the remote terminal in the case that the remote terminal has both the first relay link connection and the second relay link connection, and if the third indication information or the fourth indication sent by the first relay terminal is still not received information, the remote terminal can release the first relay link connection; but if it receives the third indication information or the fourth indication information sent by the first relay terminal, the remote terminal can release the first relay link or the second Relay link.
  • the remote terminal when the first timer expires, releases the first relay link connection and performs relay terminal reselection, including: Before a timer expires, the remote terminal does not receive the request message sent by the first relay terminal through PC5 signaling, and when the first timer expires, the remote terminal releases the The above-mentioned first relay link is connected, and the relay terminal is reselected;
  • the method further includes: before the first timer expires, the remote terminal receives a request message sent by the first relay terminal through PC5 signaling, and When the first timer expires, the remote terminal continues to maintain the connection of the first relay link; wherein, the request message indicates to continue maintaining the connection of the first relay link.
  • the method further includes: selecting a second relay terminal at the remote terminal according to a relay terminal reselection criterion, establishing a second relay link connection with the second relay terminal, and When the first timer expires, the remote terminal releases the first relay link connection.
  • the remote terminal establishes the second relay connection with the second relay terminal, and if the first timer does not expire, the remote terminal can not only connect to the first relay terminal through the first relay link
  • the remote terminal may communicate with the second relay terminal through the second relay link connection, or the remote terminal may communicate with the first relay terminal through the first relay link connection, or the remote terminal may communicate with the first relay terminal through the first relay link connection.
  • the end terminal can communicate with the second relay terminal through the second relay link connection.
  • the method further includes: selecting a second relay terminal at the remote terminal according to a relay terminal reselection criterion, and establishing a second relay link connection with the second relay terminal, And when the first timer has not expired, the remote terminal releases the first relay link connection.
  • the second relay link is a relay link between the remote terminal and the second relay terminal.
  • the method also includes:
  • the remote terminal When it is determined that the difference between the measured reference signal receiving power (Reference Signal Receiving Power, RSRP) of the second relay terminal and the RSRP of the first relay terminal is greater than a threshold value, the remote terminal The terminal switches from the first relay link connection to the second relay link connection; wherein the second relay link is a relay between the remote terminal and the second relay terminal link.
  • RSRP Reference Signal Receiving Power
  • RSRP may include SL-RSRP or SD-RSRP.
  • the above-mentioned first dedicated signaling includes: radio resource control RRC signaling or user plane UP signaling.
  • the aforementioned PC5 signaling includes one of the following: PC5-RRC signaling, PC5-S signaling, Sidelink-MAC Control Element (Sidelink-MAC Control Element, SL-MAC CE), radio link layer control (RLC Control) control protocol data unit (Protocol Data Unit, PDU), PC5 adaptation layer.
  • Fig. 5 is a schematic flow chart of another communication method provided by the embodiment of the present application. As shown in Fig. 5, the method includes:
  • the first relay terminal starts or restarts a second timer with a timing duration of a second duration at a third moment.
  • the first relay terminal maintains the first relay link connection; wherein, the first relay link is a connection between the remote terminal and the first relay Relay link between terminals.
  • the first moment may be different or the same as the third moment.
  • the first duration may be the same as or different from the second duration.
  • the first timer and the second timer may be timers of the same type, or timers of different types.
  • the first relay terminal may start or restart a second timer with a timing duration of the second duration based on the configuration information of the second timer.
  • the second timer configuration information may include the second duration, or the second timer configuration information may include the second duration and the third moment.
  • the second timer configuration information based on the first relay terminal may be the same as or different from the first timer configuration information based on the remote terminal.
  • the second timer may be any timer in the remote terminal, or the second timer may be a dedicated timer.
  • the dedicated timer may be configured by the second timer configuration information.
  • the remote terminal and the first relay terminal can jointly maintain the first relay link connection, thereby avoiding frequent reselection of the remote terminal. Select the relay terminal question.
  • the second duration is broadcast by the network equipment of the cell where the first relay terminal resides; or,
  • the second duration is sent by the network equipment of the cell where the first relay terminal resides through second dedicated signaling; or,
  • the second duration is sent by the remote terminal through PC5 signaling; or,
  • the second duration is generated or preconfigured by the first relay terminal.
  • the second timer configuration information may be obtained in the following manner:
  • the second timer configuration information is broadcast by the network device of the cell where the remote terminal is located; or, the second timer configuration information is sent by the network device of the cell where the remote terminal is located through the first dedicated signaling or, the second timer configuration information is sent by the first relay terminal through PC5 signaling; or, the second timer configuration information is generated or pre-configured by the remote terminal.
  • the first relay terminal may send the second duration or the second timer configuration information or the first timer configuration information determined based on the second timer configuration information to the remote terminal.
  • the second duration or timer configuration information may be included in a system message (System Information, SI).
  • SI System Information
  • the system message may be broadcast by the network equipment of the cell where the first relay terminal resides.
  • the first relay terminal when the first relay terminal receives the second duration broadcast by the network equipment of the cell where the first relay terminal resides or sent through second dedicated signaling, or, the When the first relay terminal generates the second duration, the first relay terminal sends the second duration to the remote terminal.
  • the first relay terminal may send the second duration to the remote terminal through PC5 signaling.
  • the first relay terminal After the first relay terminal receives the timer configuration information broadcast by the network equipment of the cell where the first relay terminal resides or sent through first dedicated signaling, or, the first relay terminal When a relay terminal generates or pre-configures timer configuration information, the first relay terminal sends the timer configuration information to the remote terminal.
  • the first relay terminal terminal may send timer configuration information to the remote terminal through PC5 signaling.
  • the first relay terminal when the first relay terminal performs cell reselection, the first relay terminal sends the second duration or timer configuration information to the remote terminal.
  • the first relay terminal may first send the second duration or timer configuration information to the remote terminal, and then start or restart the second timer with the second duration.
  • the first relay terminal may first start or restart a second timer with a second duration, and then send the second duration or timer configuration information to the remote terminal.
  • the first relay terminal may simultaneously perform sending the second duration or timer configuration information to the remote terminal, and start or restart the second timer whose timing duration is the second duration.
  • the timing for the first relay terminal to start or restart the first timer is described below:
  • the first relay terminal after the first relay terminal sends the first indication information to the remote terminal through PC5 signaling, it starts or restarts the second timer with the timing duration of the second duration at the third moment. A timer; wherein, the first indication information instructs the first relay terminal to perform cell reselection.
  • the first relay terminal responds to the first feedback information sent by the remote terminal through PC5 signaling, and at the third moment starts or restarts the timer whose timing duration is the second duration.
  • the first feedback information is: feedback information for the first indication information instructing the first relay terminal to perform cell reselection.
  • the first relay terminal after the first relay terminal sends the second indication information to the remote terminal through PC5 signaling, it starts or restarts the second timer with a timing duration of the second duration at the third moment. Two timers; wherein, the second indication information indicates to start or restart the second timer.
  • the first relay terminal starts or restarts the timer with a timing duration of the second duration at the third moment in response to the second feedback information sent by the remote terminal through PC5 signaling.
  • the timing for the first relay terminal to stop the first timer is described below:
  • the second timing is stopped at the fourth moment device.
  • the first relay terminal stops the second timer at a fourth moment in response to the third feedback information sent by the remote terminal through PC5 signaling; the third feedback information It is: feedback information for the discovery message carrying the reselected cell identifier.
  • the second timer when the first relay terminal sends the third indication information to the remote terminal through PC5 signaling, the second timer is stopped at the fourth moment; the third The indication information indicates that the first relay terminal successfully enters the RRC connection state.
  • the first relay terminal stops the second timer at a fourth moment in response to the fourth feedback information for the third indication information sent by the remote terminal through PC5 signaling;
  • the third indication information indicates that the first relay terminal successfully enters the RRC connection state.
  • the second timer is stopped at the fourth moment; the fourth The indication information indicates to stop the first timer of the remote terminal.
  • the first relay terminal stops the second timer at the fourth moment in response to the fifth feedback information for the fourth indication information sent by the remote terminal through PC5 signaling;
  • the fourth indication information indicates to stop the first timer of the remote terminal.
  • the method further includes:
  • the first relay terminal continues to maintain the first relay link connection.
  • stopping the second timer may be referred to as disabling the second timer, or terminating the second timer, or interrupting the second timer.
  • the method also includes:
  • the first relay terminal releases the first relay link connection.
  • the method also includes:
  • the first relay terminal releases the first relay link connection in response to the second release request sent by the remote terminal through PC5 signaling; the second release request indicates to release the first relay link link connection.
  • the releasing the first relay link connection by the first relay terminal when the second timer expires includes: before the second timer expires, The first relay terminal does not send a request message to the remote terminal through PC5 signaling, and when the second timer expires, the first relay terminal releases the first relay chain road connection.
  • the first relay terminal before the second timer expires, the first relay terminal sends a request message to the remote terminal through PC5 signaling, and when the second timer expires, The first relay terminal continues to maintain the connection of the first relay link.
  • the request message indicates to continue maintaining the first relay link connection.
  • the above-mentioned second dedicated signaling includes: radio resource control RRC signaling or user plane UP signaling.
  • the above-mentioned PC5 signaling includes one of the following: PC5-RRC signaling, PC5-S signaling, sidelink-medium access control control element SL-MAC CE, radio link layer control Control protocol data unit RLC Control PDU, PC5 adaptation layer.
  • a link maintenance timer for the remote terminal and/or the first relay terminal.
  • the timer is used when the first relay terminal performs cell reselection, the remote terminal and/or The first relay terminal still maintains the current relay link (that is, the above-mentioned first relay link) before the timer expires.
  • the timer can be configured in at least one of the following ways:
  • the network side broadcasts the system message to the remote terminal or the first relay terminal.
  • the remote terminal and the first relay terminal further negotiate the configuration of the timer through the PC5-RRC message.
  • the network side configures through dedicated signaling.
  • the following two ways can be considered for configuration:
  • the network side first configures the timer to the first relay terminal through RRC dedicated signaling, and the first relay terminal further sends the timer configuration to the remote terminal through a PC5-RRC message.
  • the network side directly configures the timer to the remote terminal through RRC dedicated signaling, and the remote terminal sends the timer configuration to the first relay terminal through a PC5-RRC message.
  • the timer configuration is autonomously generated by the first relay terminal, and the timer configuration is sent to the remote terminal through a PC5-RRC message/SL MAC CE.
  • the timer configuration is autonomously generated by the remote terminal, and the timer configuration is sent to the first relay terminal through a PC5-RRC message/SL MAC CE.
  • At least one of the following conditions may be considered as the trigger condition of the timer:
  • the first relay terminal when it starts to perform cell reselection, it will indicate to the remote terminal through the PC5-RRC/PC5-S message, and when the remote terminal receives the PC5-RRC/PC5-S message , start the timer.
  • the first relay terminal may start the timer by explicitly instructing the remote terminal, specifically, the explicit instruction may be sent through PC5-RRC/PC5-S or SL-MAC CE.
  • one of the following conditions can be considered as the stop condition of the timer:
  • the remote terminal detects a new cell identity from the discovery message sent by the first relay terminal, it can be considered that the first relay terminal has successfully performed cell reselection.
  • the message indication may be RRC dedicated signaling Or UP news.
  • the first relay terminal may stop the timer by explicitly instructing the remote terminal, for example, the explicit instruction may be sent through PC5-RRC/PC5-S, SL-MAC CE or RLC Control PDU.
  • the remote terminal can release the PC5-RRC connection and execute the first relay terminal re-election.
  • the remote terminal may immediately perform the first relay terminal reselection,
  • the remote terminal selects a new suitable second relay terminal according to the existing first relay terminal reselection criteria, the remote terminal can still maintain the current link before the link maintenance timer expires, and at the same time , the remote terminal can start to establish a PC5-RRC or PC5-S connection with the new second relay terminal.
  • the remote terminal can release the PC5-RRC or PC5-S connection with the previous first relay terminal; on the other hand, if the original first relay terminal successfully After performing cell reselection, the remote terminal can release the PC5-RRC or PC5-S connection with the new second relay terminal.
  • a method for continuously maintaining the connection between the current first relay terminal and the remote terminal PC5-RRC/PC5-S when the first relay terminal performs cell reselection is proposed, thereby reducing the number of remote terminals
  • the frequency for performing reselection of the first relay terminal is more conducive to energy saving of the terminal.
  • the first relay terminal may send a link maintenance request to the remote terminal, and the remote terminal may not release the current link after receiving the request message.
  • an RSRP measurement threshold value A may be configured for the remote terminal.
  • the remote terminal performs reselection of the first relay terminal, the measured RSRP measurement value of the new second relay terminal is higher than the current
  • the remote terminal can immediately release the PC5-RRC/PC5-S link with the original first relay terminal and switch to the new second trunk terminal.
  • sequence numbers of the above-mentioned processes do not mean the order of execution, and the order of execution of the processes should be determined by their functions and internal logic, and should not be used in this application.
  • the implementation of the examples constitutes no limitation.
  • the terms “downlink”, “uplink” and “sidelink” are used to indicate the transmission direction of signals or data, wherein “downlink” is used to indicate that the transmission direction of signals or data is sent from the station The first direction to the user equipment in the cell, “uplink” is used to indicate that the signal or data transmission direction is the second direction sent from the user equipment in the cell to the station, and “side line” is used to indicate that the signal or data transmission direction is A third direction sent from UE1 to UE2.
  • “downlink signal” indicates that the transmission direction of the signal is the first direction.
  • the term “and/or” is only an association relationship describing associated objects, indicating that there may be three relationships. Specifically, A and/or B may mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this article generally indicates that the contextual objects are an "or” relationship.
  • FIG. 6 is a schematic diagram of the structure and composition of a communication device provided by an embodiment of the present application, which is applied to a remote terminal. As shown in FIG. 6, the communication device 600 includes:
  • a starting unit 601 configured to start or restart a first timer with a timing duration of a first duration at a first moment when the first relay terminal performs cell reselection;
  • a maintenance unit 602 configured to maintain a first relay link connection during the operation of the first timer; wherein, the first relay link is the connection between the remote terminal and the first relay terminal link between relays.
  • the first duration is broadcast by the network equipment of the cell where the remote terminal is located; or,
  • the first duration is sent by the network equipment of the cell where the remote terminal is located through the first dedicated signaling; or,
  • the first duration is sent by the first relay terminal through PC5 signaling; or,
  • the first duration is generated or preconfigured by the remote terminal.
  • the communication device 600 further includes a transceiver unit 603, and the transceiver unit 603 is used for:
  • the remote terminal When the remote terminal receives the first duration broadcast by the network equipment of the cell where the remote terminal is located or sent through the first dedicated signaling, or the remote terminal generates the first duration , sending the first duration to the first relay terminal.
  • the starting unit 601 is also used to:
  • the first relay terminal Responding to the first indication information sent by the first relay terminal through PC5 signaling, start or restart the first timer whose timing duration is the first duration at the first moment; wherein, the first A piece of indication information instructs the first relay terminal to perform cell reselection; or,
  • the first relay terminal In response to the second indication information sent by the first relay terminal through PC5 signaling, starting or restarting the first timer whose timing duration is the first duration at the first moment; wherein, the first The second indication information indicates to start or restart the first timer.
  • the communication device 600 further includes a stop unit 604, and the stop unit 604 is used for:
  • the third indication information indicates that the first relay terminal has successfully entered the RRC connection state
  • the fourth indication information In response to the fourth indication information sent by the first relay terminal through PC5 signaling; stop the first timer at a second moment; the fourth indication information indicates to stop the first timer.
  • the maintenance unit 602 is further configured to continue to maintain the first relay link connection after the first timer is stopped.
  • the communication device 600 further includes a release reselection unit 605, and the release reselection unit 605 is used for:
  • the first release request indicates to release the The above-mentioned first trunk link connection.
  • the release reselection unit 605 is also used to:
  • the remote terminal does not receive the request message sent by the first relay terminal through PC5 signaling, and when the first timer expires, release the The first relay link is connected, and the relay terminal is reselected;
  • the maintenance unit 602 is further configured to: before the first timer expires, the remote terminal receives the request message sent by the first relay terminal through PC5 signaling, and when the first timer expires, case, continue to maintain the connection of the first relay link;
  • the request message indicates to continue maintaining the first relay link connection.
  • the release reselection unit 605 is also used to:
  • the remote terminal selects a second relay terminal according to the relay terminal reselection criteria, establishes a second relay link connection with the second relay terminal, and the first timer expires, release said first trunk link connection; or,
  • the remote terminal selects a second relay terminal according to a relay terminal reselection criterion, establishes a second relay link connection with the second relay terminal, and the first timer does not expire, releasing the first trunk link connection;
  • the second relay link is a relay link between the remote terminal and the second relay terminal.
  • the communication device 600 further includes a switching unit 606, and the switching unit 606 is used for:
  • the second relay link is a relay link between the remote terminal and the second relay terminal.
  • the first dedicated signaling includes: radio resource control RRC signaling or user plane UP signaling.
  • the PC5 signaling includes one of the following: PC5-RRC signaling, PC5-S signaling, sidelink-medium access control control element SL-MAC CE, radio link layer control control protocol Data unit RLC Control PDU, PC5 adaptation layer.
  • FIG. 7 is a schematic diagram of the structure and composition of another communication device provided in the embodiment of the present application, which is applied to the first relay terminal. As shown in FIG. 7, the communication device 700 includes:
  • a starting unit 701 configured to start or restart a second timer with a timing duration of a second duration at a third moment when the first relay terminal performs cell reselection;
  • a maintenance unit 702 configured to maintain a first relay link connection during the operation of the second timer; wherein the first relay link is between the remote terminal and the first relay terminal the relay link.
  • the second duration is broadcast by the network equipment of the cell where the first relay terminal resides; or,
  • the second duration is sent by the network equipment of the cell where the first relay terminal resides through second dedicated signaling; or,
  • the second duration is sent by the remote terminal through PC5 signaling; or,
  • the second duration is generated or preconfigured by the first relay terminal.
  • the communication device 700 further includes a transceiver unit 703, and the transceiver unit 703 is used for:
  • the first relay terminal After the first relay terminal receives the second duration broadcast by the network equipment of the cell where the first relay terminal resides or sent through the second dedicated signaling, or the first relay terminal generates In the case of the second duration, sending the second duration to the remote terminal.
  • the starting unit 701 is also used to:
  • the first indication information instructs the first relay terminal to perform cell reselection
  • the first feedback information is : Feedback information for the first indication information instructing the first relay terminal to perform cell reselection
  • the second indication information In the case of sending the second indication information to the remote terminal through PC5 signaling, start or restart the second timer whose timing duration is the second duration at the third moment; wherein, the second indication The information indicates to start or restart the second timer;
  • the second feedback information In response to the second feedback information sent by the remote terminal through PC5 signaling, start or restart the second timer whose timing duration is the second duration at the third moment; wherein the second feedback information is : Feedback information for the second indication information indicating to start or restart the second timer.
  • the communication device 700 further includes a stop unit 704, and the stop unit 704 is used for:
  • the third feedback information is: a discovery message carrying the reselected cell identity feedback information
  • the third indication information indicates that the first relay terminal successfully enters the RRC connection state
  • the third indication information indicates that the first relay terminal Successfully enter the RRC connection state
  • the fourth indication information indicates to stop the first timer of the remote terminal ;
  • the fourth indication information indicates to stop the remote terminal first timer.
  • the maintenance unit 702 is further configured to continue to maintain the first relay link connection after the second timer is stopped.
  • the communication device 700 further includes a release unit 705, and the release unit 705 is used for:
  • the second release request In response to the second release request sent by the remote terminal through PC5 signaling, release the first relay link connection; the second release request indicates to release the first relay link connection.
  • the releasing unit 705 is further configured to: before the second timer expires, the first relay terminal does not send a request message to the remote terminal through PC5 signaling, and at the second When the second timer expires, releasing the first relay link connection;
  • the maintenance unit 702 is further configured to: before the second timer expires, the first relay terminal sends a request message to the remote terminal through PC5 signaling, and when the second timer expires, continue to maintain the connection of the first relay link;
  • the request message indicates to continue maintaining the first relay link connection.
  • the second dedicated signaling includes: radio resource control RRC signaling or user plane signaling.
  • the PC5 signaling includes one of the following: PC5-RRC signaling, PC5-S signaling, sidelink-medium access control control element SL-MAC CE, radio link layer control control protocol Data unit RLC Control PDU, PC5 adaptation layer.
  • Fig. 8 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • the communications device 800 may include a remote terminal or a first relay terminal.
  • the communication device 800 shown in FIG. 8 may include a processor 810 and a memory 820, the memory 820 is used to store computer programs, and the processor 810 is used to call and run the computer programs stored in the memory 820 to execute any of the above-mentioned The communication method in the embodiment.
  • the communication device 800 may further include a memory 820 .
  • the processor 810 can call and run a computer program from the memory 820, so as to implement the method in the embodiment of the present application.
  • the memory 820 may be an independent device independent of the processor 810 , or may be integrated in the processor 810 .
  • the communication device 800 may further include a transceiver 830, and the processor 810 may control the transceiver 830 to communicate with other devices, specifically, to send information or data to other devices, or Receive information or data from other devices.
  • the transceiver 830 may include a transmitter and a receiver.
  • the transceiver 830 may further include antennas, and the number of antennas may be one or more.
  • the communication device 800 may specifically be the remote terminal or the first relay terminal in the embodiment of the present application, and the communication device 800 may implement the methods performed by the remote terminal or the first relay terminal in the embodiments of the present application. For the sake of brevity, the corresponding process implemented by the relay terminal will not be repeated here.
  • FIG. 9 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 900 shown in FIG. 9 includes a processor 910, and the processor 910 is configured to call and run a computer program from a memory, so that a device installed with the chip executes the method in the embodiment of the present application.
  • the chip 900 may further include a memory 920 .
  • the processor 910 can invoke and run a computer program from the memory 920, so as to implement the method in the embodiment of the present application.
  • the memory 920 may be an independent device independent of the processor 910 , or may be integrated in the processor 910 .
  • the chip 900 may further include an input interface 930 .
  • the processor 910 can control the input interface 930 to communicate with other devices or chips, specifically, can obtain information or data sent by other devices or chips.
  • the chip 900 may further include an output interface 940 .
  • the processor 910 can control the output interface 940 to communicate with other devices or chips, specifically, can output information or data to other devices or chips.
  • the chip can be applied to the remote terminal or the first relay terminal in the embodiments of the present application, and the chip can implement the remote terminal or the first relay terminal in each method of the embodiments of the present application.
  • the corresponding process of implementation is not repeated here.
  • the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
  • the embodiment of the present application also provides a computer storage medium, which is used to store a computer program, and the computer program enables the remote terminal or the first relay terminal to execute the communication method in any embodiment of the present application.
  • the embodiment of the present application also provides a computer program product, including computer program instructions, the computer program instructions enable the remote terminal or the first relay terminal to implement the communication method in any embodiment of the present application.
  • the computer program product can be applied to the remote terminal or the first relay terminal in the embodiments of the present application, and the computer program instructions enable the computer to execute the method implemented by the network device in the methods of the embodiments of the present application For the sake of brevity, the corresponding process is not repeated here.
  • the embodiment of the present application further provides a computer program, the computer program enables the remote terminal or the first relay terminal to execute the communication method in any embodiment of the present application.
  • the computer program can be applied to the remote terminal or the first relay terminal in the embodiment of the present application.
  • the computer program executes the various methods in the embodiment of the present application. For the sake of brevity, the corresponding process implemented by the network device will not be repeated here.
  • the processor, communication device, or chip in this embodiment of the present application may be an integrated circuit chip that has a signal processing capability.
  • each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
  • the above-mentioned processor, communication device or chip may include any one or more of the following integrations: general-purpose processor, application specific integrated circuit (Application Specific Integrated Circuit, ASIC), digital signal processor (Digital Signal Processor, DSP), digital Signal Processing Device (Digital Signal Processing Device, DSPD), Programmable Logic Device (Programmable Logic Device, PLD), Field Programmable Gate Array (Field Programmable Gate Array, FPGA), Central Processing Unit (Central Processing Unit, CPU), graphics Processor (Graphics Processing Unit, GPU), embedded neural network processor (neural-network processing units, NPU), controller, microcontroller, microprocessor, programmable logic device, discrete gate or transistor logic device, discrete hardware components.
  • ASIC Application Specific Integrated Circuit
  • DSP Digital Signal Processor
  • DSPD Digital Signal Processing Device
  • PLD Programmable Logic Device
  • Field Programmable Gate Array Field Programmable Gate Array
  • FPGA Field Programmable Gate Array
  • CPU Central Processing Unit
  • GPU Graphics Processing Unit
  • embedded neural network processor neural-
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • the steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory or computer storage medium in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash.
  • the volatile memory can be Random Access Memory (RAM), which acts as external cache memory.
  • RAM Static Random Access Memory
  • SRAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM, DDR SDRAM enhanced synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM synchronous connection dynamic random access memory
  • Synchlink DRAM, SLDRAM Direct Memory Bus Random Access Memory
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM) , DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM ), synchronous connection dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include, but not be limited to, these and any other suitable types of memory.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disc, etc., which can store program codes. .

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

Abstract

Des modes de réalisation de la présente demande concernent des procédés et des appareils de communication, un terminal, une puce, un support de stockage, un produit et un programme. Un procédé comprend les étapes suivantes : lorsqu'un premier terminal relais effectue une resélection de cellule, un terminal distant à un premier moment démarre ou redémarre un premier temporisateur ayant une durée de synchronisation qui est une première durée ; et le terminal distant maintient une première connexion de liaison relais tandis que le premier temporisateur fonctionne, la première liaison relais étant une liaison relais entre le terminal distant et le premier terminal relais.
PCT/CN2021/142147 2021-12-28 2021-12-28 Procédés et appareils de communication, terminal, puce, support de stockage, produit et programme Ceased WO2023122976A1 (fr)

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PCT/CN2021/142147 WO2023122976A1 (fr) 2021-12-28 2021-12-28 Procédés et appareils de communication, terminal, puce, support de stockage, produit et programme
CN202180103388.6A CN118120293A (zh) 2021-12-28 2021-12-28 通信方法、装置、终端、芯片、存储介质、产品及程序

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CN119316099A (zh) * 2023-07-11 2025-01-14 中国移动通信有限公司研究院 一种通信方法及基站、终端、存储介质

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