WO2022206007A1 - 中继通信方法及装置、存储介质、中继设备 - Google Patents

中继通信方法及装置、存储介质、中继设备 Download PDF

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Publication number
WO2022206007A1
WO2022206007A1 PCT/CN2021/136028 CN2021136028W WO2022206007A1 WO 2022206007 A1 WO2022206007 A1 WO 2022206007A1 CN 2021136028 W CN2021136028 W CN 2021136028W WO 2022206007 A1 WO2022206007 A1 WO 2022206007A1
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Prior art keywords
access
rrc
request
relay
timer
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PCT/CN2021/136028
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English (en)
French (fr)
Inventor
邓云
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展讯通信（上海）有限公司
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Publication of WO2022206007A1 publication Critical patent/WO2022206007A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery

Definitions

  • the present invention relates to the field of communication technologies, and in particular, to a relay communication method and device, a storage medium, and a relay device.
  • a remote user equipment accesses the network through the relay device (Relay), and can carry out services and expand the coverage of the network.
  • Remote UEs can be located at the cell edge, or outside the network coverage.
  • the relay is within the coverage of the cell, and usually the channel environment where it is located is relatively good.
  • the Relay that is serving the Remote UE is in the Radio Resource Control (RRC) connection state.
  • RRC Radio Resource Control
  • the Relay In order to enable the Relay to save power better, the Relay is now allowed to enter the idle state or inactive state (Inactive). At this time, if a Remote UE expects to access the network through the Relay, the Relay needs to establish an RRC connection or restore the RRC connection (for Inactive state transitions to connected state).
  • the technical problem solved by the present invention is how to improve the access success rate of the relay device when establishing or restoring an RRC connection.
  • an embodiment of the present invention provides a relay communication method, the relay communication method includes: receiving access indication information of a remote user equipment, where the access indication information is used to indicate that access to a network is required; responding to After receiving the access indication information, directly initiate an RRC recovery request or an RRC setup request, or, if there is a running timer forbidding access, determine whether to initiate an RRC recovery request or not according to the type of the running timer.
  • the RRC establishment request is to request to establish an RRC connection to forward the data of the remote user equipment.
  • the determining whether to initiate the RRC recovery request or the RRC setup request according to the type of the running timer includes: stopping the running of the timer, and initiating the RRC recovery request or the RRC setup request.
  • the determining whether to initiate the RRC recovery request or the RRC establishment request according to the type of the running timer includes: when the timer type is the timing duration configured by the base station, initiating the RRC recovery request or the RRC recovery request. Establish a request, and prohibit initiating its own service before the timer expires; or, prohibit initiating the RRC recovery request or the RRC establishment request until the timer expires.
  • the timer type is T302.
  • the determining whether to initiate an RRC recovery request or an RRC setup request according to the type of the running timer includes: when the timer type is a timing duration related to an access category, initiating the RRC recovery request or the RRC setup request. the RRC setup request, and before the timer expires, prohibit itself from initiating the service of the access class; or prohibit initiating the RRC recovery request or the RRC setup request originating from the access class, until the timer expires.
  • the timer type is T390.
  • the relay communication method further includes: if there is no running access prohibition timer, according to the access parameter with the highest or second highest priority, or according to the remote user equipment's own access parameter.
  • Access parameters implement access control.
  • the method before performing the access control according to the access parameter, the method further includes: receiving the access parameter of the remote user equipment.
  • the implementing the access control according to the access parameter includes: implementing the access control by using the access parameter of the remote user equipment with the highest or second highest priority.
  • the access parameter includes an access reason and/or an access type and an access identifier.
  • an embodiment of the present invention further discloses a relay communication apparatus
  • the relay communication apparatus includes: a receiving module, configured to receive access indication information of a remote user equipment, where the access indication information is used for Indicates that access to the network is required; the request initiating module is used to directly initiate an RRC recovery request or an RRC establishment request in response to receiving the access indication information, or, if there is a running timer that prohibits access, according to the ongoing The type of the running timer determines whether to initiate an RRC recovery request or an RRC establishment request to request the establishment of an RRC connection to forward the data of the remote user equipment.
  • the embodiment of the present invention also discloses a storage medium on which a computer program is stored, and when the computer program is run by a processor, the steps of the relay communication method are executed.
  • An embodiment of the present invention further discloses a relay device, including a memory and a processor, the memory stores a computer program that can be run on the processor, and the processor executes the computer program when the processor runs the computer program. The steps of the relay communication method.
  • the embodiment of the present invention also discloses another relay communication method.
  • the relay communication method may include: receiving access indication information of the remote user equipment, where the access indication information is used to indicate that the network needs to be accessed; if If there is no running timer for prohibiting access, the access control is implemented according to the access parameter of the highest or second highest priority, or according to the access parameter of the remote user equipment.
  • the embodiment of the present invention further discloses another relay communication apparatus, the relay communication apparatus includes: an indication information receiving module, configured to receive access indication information of a remote user equipment, where the access indication information is used to indicate It needs to access the network; the access control module is used for, when there is no running timer forbidding access, according to the access parameter of the highest or second highest priority, or according to the access parameter of the remote user equipment access parameters to implement access control.
  • an indication information receiving module configured to receive access indication information of a remote user equipment, where the access indication information is used to indicate It needs to access the network
  • the access control module is used for, when there is no running timer forbidding access, according to the access parameter of the highest or second highest priority, or according to the access parameter of the remote user equipment access parameters to implement access control.
  • the relay device after receiving the indication information that the remote user equipment needs to access the network, the relay device can ignore the possible running timer for prohibiting access, and directly initiate an RRC recovery request or an RRC establishment request, thereby improving the middle The success rate of the relay device accessing the network; or the relay device can determine whether to initiate an RRC recovery request or an RRC setup request according to the type of the running timer, and the type of the timer can reflect the load status of the base station, so that the relay device is in In the access control, the load of the base station is considered to avoid further congestion caused by accessing the network again in a high load state, thereby balancing the network load.
  • the relay device can use the access reason with the highest or second highest priority to implement access control, or use the remote user equipment with the highest or second highest priority to implement access control.
  • the access reason, access class and access identity implement access control.
  • the relay device implements access control by adopting a higher priority access reason, which can improve the success rate of the relay device accessing the network.
  • FIG. 1 is a flowchart of a relay communication method according to an embodiment of the present invention.
  • FIG. 2 is a flowchart of another relay communication method according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a relay communication device according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of another relay communication apparatus according to an embodiment of the present invention.
  • the relay device after receiving the indication information that the remote user equipment needs to access the network, the relay device can ignore the possibly running access prohibition timer, and directly initiate an RRC recovery request or an RRC establishment request, thereby improving the middle
  • the success rate of the relay device accessing the network or the relay device can determine whether to initiate an RRC recovery request or an RRC establishment request according to the type of the running timer, and the type of the timer can reflect the load status of the base station, so that the relay is connected to the network.
  • the load of the base station is taken into account when entering the control, so as to avoid further congestion caused by accessing the network again in a high load state, thereby balancing the network load.
  • the technical solution of the present invention can be applied to 5G (5 Generation) communication systems, 4G and 3G communication systems, and various new communication systems in the future, such as 6G and 7G.
  • FIG. 1 is a flowchart of a relay communication method according to an embodiment of the present invention.
  • the relay communication method in the embodiment of the present invention can be used on the side of a relay device, that is, each step of the method can be executed by the relay device.
  • the relay device may be user equipment, or may be any other implementable device.
  • the relay communication method may be implemented in the form of a software program, and the software program runs in a processor integrated inside a chip or a chip module.
  • the relay communication method may include the following steps:
  • Step S101 Receive access indication information of a remote user equipment, where the access indication information is used to indicate that a network needs to be accessed;
  • Step S102 In response to receiving the access indication information, directly initiate an RRC recovery request or an RRC setup request, or, if there is a running timer forbidding access, determine whether to initiate or not according to the type of the running timer An RRC recovery request or an RRC setup request is used to request the establishment of an RRC connection to forward data or signaling of the remote user equipment.
  • the relay communication method may be implemented in the form of a software program, and the software program runs in a processor integrated inside a chip or a chip module.
  • the method can also be implemented by combining software with hardware, which is not limited in this application.
  • the relay device is within the coverage of the serving cell and can provide relay services for other remote user equipment (Remote UE).
  • the Relay can periodically broadcast a Discovery message to the surrounding, so that the surrounding Remote UEs can discover the Relay.
  • the Remote UE can learn the information of the serving cell accessed by the Relay through the discovery information, such as the cell identity and the PLMN identity to which the cell belongs.
  • the relay device in the embodiment of the present invention is in an idle state or an inactive state.
  • the Remote UE can establish a mechanism for direct communication with the Relay, such as establishing a PC5 RRC connection.
  • the Remote UE sends access indication information to the Relay through the PC5 RRC connection to indicate that it needs to access the network.
  • the Remote UE can indicate that it needs to access the network through explicit signaling, or it can indicate the need to access the network through an implicit way, such as Remote UE.
  • Data can be sent to the Relay, but the destination address of the data is not the Relay.
  • the Relay needs to realize that the Remote UE needs to send the data to the network.
  • the Relay needs to be transferred to the RRC connection state. If the Relay was in the inactive state before, the Relay needs to send an RRC Resume Request at this time. If the Relay was in an idle state before, the Relay needs to send an RRC setup request (RRC Setup Request).
  • the relay device may perform the following operations: determine whether it is allowed to initiate an RRC recovery request or an RRC setup request, that is, the relay device determines whether it is allowed to initiate an RRC recovery request or an RRC setup request. Whether there is a running timer that prohibits access to itself. The relay device cannot initiate an RRC recovery request or an RRC setup request (that is, an RRC recovery request and an RRC setup request) before the access prohibition timer expires.
  • the access prohibition timer may include T302 and T390.
  • T302 Relay initiates an RRC establishment request or RRC recovery request for its own service, but the serving base station returns RRC rejection or RRC release, which includes the duration of the wait time (wait time), that is, the duration of timer T302.
  • wait time the wait time
  • the timer T302 is started. Before the timer T302 expires, the Relay cannot initiate an RRC establishment request or an RRC recovery request.
  • timer T390 For timer T390, when Relay tries to access the network according to its own service requirements, and uses a certain access category (Access category) to perform access control (Access Control), it finds that it is barred (Barred), that is, access is not allowed, Relay A timer T390 is started for the access type provided by its own non-access stratum when the access is required this time, and the specific duration is a duration value generated by the Relay according to the rules of the protocol. That is to say, the timer T390 is related to the access type. After the timer T390 expires, the Relay considers that the prohibition of the access type has been eliminated, that is, the access type can be used to initiate an RRC setup request or an RRC recovery request. .
  • Access category access category
  • Barrred access control
  • Relay A timer T390 is started for the access type provided by its own non-access stratum when the access is required this time, and the specific duration is a duration value generated by the Relay according to the rules of the
  • the relay device may directly initiate an RRC recovery request or an RRC establishment request.
  • the relay device will directly initiate an RRC recovery request or an RRC setup request regardless of whether there is a running access-forbidden timer. For example, if the relay device detects that there is a running timer for prohibiting access, the relay device can ignore the running timer.
  • the technical scheme of the present invention can improve the success rate of the relay device accessing the network.
  • the relay device may directly initiate an RRC recovery request or an RRC establishment request without performing the step of detecting the timer.
  • the relay device may determine whether to initiate an RRC recovery request or an RRC establishment request according to the type of the running timer. Since the type of the timer can reflect the load state of the base station or the configuration state of the network, the relay device considers the type of the timer when requesting access, which can optimize the access.
  • the technical scheme of the present invention enables the relay device to access the The load of the base station is considered in the control to avoid further congestion caused by re-accessing the network in a high load state, thereby balancing the network load.
  • the Relay receives a response returned by the serving base station, and the Relay establishes an RRC connection with the serving base station. After that, the Relay can transmit its service request and other information to the Remote UE through the established RRC connection, and then a data radio bearer can be established between the serving base station and the Relay to transmit the data of the Remote UE, which is the exchange of service data and information between the Remote UE and the serving base station. It provides a channel and acts as a relay.
  • the technical solutions of the embodiments of the present invention can be used in a sidelink relay (sidelink relay) scenario, or in a relay scenario of other communication methods.
  • the relay device needs to provide Following the service, the data or signaling of the user equipment is forwarded to the network side.
  • step S102 shown in FIG. 1 may include the following steps: stop running the timer, and initiate the RRC recovery request or the RRC establishment request.
  • the relay device will stop running the timer and initiate the RRC recovery request or the RRC establishment request.
  • stopping the running of the timer refers to terminating the timer, that is, when the subsequent relay device initiates a connection request for its own service, the timer will no longer work.
  • step S102 shown in FIG. 1 may include the following steps: when the timer type is the timing duration configured by the base station, initiating the RRC recovery request or the RRC establishment request, And before the timer expires, it is forbidden to initiate a service by itself.
  • the timer type is T302.
  • the timer T302 is only used for the service requirement of the Relay itself, and does not involve the service requirement of the Remote UE. That is to say, the timer T302 is only for the service of the relay equipment itself, and does not limit the service of the remote user equipment.
  • the Relay can use the continuous running timer T302, that is, the Relay is not allowed to initiate a connection request for its own service requirements, but the Relay is allowed to assume the relay role for the Remote UE, that is, the Relay is allowed to initiate a connection request for the Remote UE's service requirements.
  • the relay device prohibits initiating the RRC recovery request or the RRC setup request until the timer expires.
  • the timer type is T302.
  • the Relay when the Relay needs to access the network after receiving the request of the Remote UE, it continues to use the current mechanism, that is, the Relay cannot initiate an RRC establishment request or an RRC recovery request according to the service requirements of the Remote UE before T302 times out.
  • timer referred to in the embodiment of the present invention is not limited to T302, and may also be any name or any form of timer configured for the relay by the base station that appears in the evolution of the subsequent communication technology.
  • step S102 shown in FIG. 1 may include the following steps: when the timer type is a timing duration related to an access category, initiating the RRC recovery request or the RRC establishment request, and prohibit itself from initiating a service request originating from the access category before the timer expires.
  • the timer type is T390.
  • the timer type is related to the access category, and the timer only limits the services of the relay device itself belonging to the access category. Then, the relay device can initiate the RRC recovery request or the RRC establishment request, but before the timer expires, it is prohibited from initiating the service originating from the access category by itself.
  • initiating the RRC recovery request or the RRC setup request originating from the access category is prohibited until the timer expires.
  • the timer type is T390.
  • the timer not only limits the services of the relay device itself belonging to the access category, but also limits the services of the remote UEs belonging to the access category. Then, when the remote UE requests the relay device to access the network for services belonging to this category, the relay device will not initiate an RRC recovery request or the RRC setup request until the timer expires.
  • the above embodiment is an implementation when there is a running timer that prohibits access.
  • the relay device When there is no timer that is running to prohibit access, the relay device will implement access control according to the flow of the method shown in FIG. 2 . .
  • the relay communication method may include the following steps:
  • Step S201 Receive access indication information of a remote user equipment, where the access indication information is used to indicate that a network needs to be accessed;
  • Step S202 If there is no running access prohibition timer, implement access control according to the access parameter with the highest or second highest priority, or according to the access parameter of the remote user equipment.
  • step S201 For the specific implementation manner of step S201, reference may be made to the relevant embodiments of step S101, which will not be repeated here.
  • the relay device may implement access control according to its own access parameter with the highest or second highest priority.
  • the access parameters include an access reason, an access category (Access category) and/or an access identity (Access identity). That is to say, when the relay device implements access control according to the service requirements of the remote UE, it always adopts the access parameters with higher priority, so as to ensure the success rate of access and ensure that the remote UE can be provided with medium priority. continue service.
  • the access cause and the access category have a mapping relationship, and when one of them is determined, the other can be determined.
  • the Relay when the Relay always implements the access control based on the access reason with the higher priority, the Relay implements the access control according to the access category corresponding to the access reason with the higher priority.
  • the upper layer of the user equipment such as a relay device
  • the access layer of the user equipment is based on the access layer. Class and access identifier, and implement access control according to the access control parameters in the system message to determine whether to allow access to the network.
  • the relay device may implement access control according to the access parameters of the remote user equipment.
  • the access parameters of the remote user equipment can be sent to the relay device through the PC5 RRC connection in advance.
  • step S202 receiving the access parameters of the remote user equipment. For example, when the remote UE indicates to the relay device that it needs to access the network through the PC5 RRC connection, it can send the access parameters to the relay device at the same time.
  • the relay device may also implement access control according to its own access parameters.
  • the access parameters of the multiple remote user equipments will all be sent to the relay device.
  • the relay device can use the access parameters of the remote user equipment with the highest or second highest priority to implement access control, thereby improving the success rate of access. "At the same time” here does not mean complete synchronization in time, and there may be certain differences.
  • the relay device receives network access requests from multiple remote user equipments within a period of time, it will be based on the highest priority among the multiple user equipments. or the next highest access parameter to implement access control.
  • the Relay receives service requests or connection requests from multiple Remote UEs.
  • the Relay uses the access reason with the highest priority or the next highest priority among the multiple Remote UEs as the access control factor for this time. Access reason.
  • an embodiment of the present invention further discloses a relay communication device 30 .
  • the relay communication device 30 may include:
  • a receiving module 301 configured to receive access indication information of a remote user equipment, where the access indication information is used to indicate that a network needs to be accessed;
  • the request initiating module 302 is configured to directly initiate an RRC recovery request or an RRC establishment request in response to receiving the access indication information, or, if there is a running timer forbidding access, according to the running timer
  • the type determines whether to initiate an RRC recovery request or an RRC setup request to request the establishment of an RRC connection to forward data or signaling of the remote user equipment.
  • the embodiments of the present invention can solve the access control problem when the relay device accesses the network due to the requirement of the Remote UE, improve the success rate of the relay device's access, and also consider the load state of the network to avoid the high load state. Accessing the network again causes further congestion.
  • the relay communication device 40 may include:
  • An indication information receiving module 401 configured to receive access indication information of a remote user equipment, where the access indication information is used to indicate that a network needs to be accessed;
  • the access control module 402 is configured to implement access according to its own access parameter with the highest or second highest priority or according to the access parameter of the remote user equipment when there is no running timer for prohibiting access. access control.
  • the embodiments of the present invention can improve the access success rate by implementing access control when there is no running timer for prohibiting access, so as to be able to preferentially provide relay services for remote UEs.
  • the above-mentioned relay communication device 30 and relay communication device 40 may correspond to a chip with a relay communication function in a relay device, such as SOC (System-On-a-Chip, system on chip), baseband chip, etc. ; or correspond to a relay device including a chip module with a relay communication function; or correspond to a chip module with a data processing function chip, or correspond to a relay device.
  • a relay device such as SOC (System-On-a-Chip, system on chip), baseband chip, etc.
  • a relay device including a chip module with a relay communication function or correspond to a chip module with a data processing function chip, or correspond to a relay device.
  • each module/unit included in each device and product described in the above-mentioned embodiments it may be a software module/unit, a hardware module/unit, or a part of a software module/unit and a part of a hardware module/unit .
  • each module/unit included therein may be implemented by hardware such as circuits, or at least some of the modules/units may be implemented by a software program.
  • the remaining (if any) part of the modules/units can be implemented by hardware such as circuits; for each device and product applied to or integrated in the chip module, the modules/units contained therein can be They are all implemented by hardware such as circuits, and different modules/units can be located in the same component of the chip module (such as chips, circuit modules, etc.) or in different components, or at least some of the modules/units can be implemented by software programs.
  • the software program runs on the processor integrated inside the chip module, and the remaining (if any) part of the modules/units can be implemented by hardware such as circuits; for each device and product applied to or integrated in the terminal, each module contained in it
  • the units/units may all be implemented in hardware such as circuits, and different modules/units may be located in the same component (eg, chip, circuit module, etc.) or in different components in the terminal, or at least some of the modules/units may be implemented by software programs Realization, the software program runs on the processor integrated inside the terminal, and the remaining (if any) part of the modules/units can be implemented in hardware such as circuits.
  • An embodiment of the present invention further discloses a storage medium, which is a computer-readable storage medium, and stores a computer program thereon. When the computer program runs, the relay communication method shown in FIG. 1 or FIG. 2 can be executed. A step of.
  • the storage medium may include ROM, RAM, magnetic or optical disks, and the like.
  • the storage medium may also include a non-volatile memory (non-volatile) or a non-transitory (non-transitory) memory and the like.
  • the embodiment of the present invention further discloses a relay device, the relay device may include a memory and a processor, and the memory stores a computer program that can run on the processor.
  • the processor may execute the steps of the method shown in FIG. 1 or FIG. 2 when the computer program is executed.
  • the relay device may be user equipment, specifically including but not limited to terminal devices such as mobile phones, computers, and tablet computers.
  • the technical solution of the present invention is also applicable to different network architectures, including but not limited to relay network architecture, dual link architecture, Vehicle-to-Everything (vehicle-to-anything communication) architecture and other architectures.
  • the core network described in the embodiments of the present application may be an evolved packet core network (evolved packet core, EPC for short), a 5G Core Network (5G core network), or a new type of core network in a future communication system.
  • the 5G Core Network consists of a set of devices, and implements access and mobility management functions (Access and Mobility Management Function, AMF) for functions such as mobility management, and provides functions such as packet routing and forwarding and QoS (Quality of Service) management.
  • AMF Access and Mobility Management Function
  • UPF User Plane Function
  • SMF Session Management Function
  • EPC consists of MME that provides functions such as mobility management and gateway selection, Serving Gateway (S-GW) that provides functions such as packet forwarding, and PDN Gateway (P-GW) that provides functions such as terminal address allocation and rate control.
  • S-GW Serving Gateway
  • P-GW PDN Gateway
  • a base station (base station, BS for short) in the embodiments of the present application which may also be referred to as base station equipment, is a device deployed in a radio access network (RAN) to provide a wireless communication function.
  • the equipment that provides base station functions in 2G networks includes base transceiver stations (English: base transceiver station, referred to as BTS), the equipment that provides base station functions in 3G networks includes NodeB (NodeB), and the equipment that provides base station functions in 4G networks.
  • eNB evolved NodeB
  • WLAN wireless local area networks
  • the device that provides base station functions is access point (access point, referred to as AP), 5G New Radio (New Radio) , referred to as NR) in the device gNB that provides base station functions, and the node B (ng-eNB) that continues to evolve, wherein the gNB and the terminal use NR technology for communication, and the ng-eNB and the terminal use E-UTRA (Evolved Universal Terrestrial Radio Access) technology to communicate, both gNB and ng-eNB can be connected to the 5G core network.
  • the base station in the embodiment of the present application also includes a device and the like that provide the function of the base station in a new communication system in the future.
  • the base station controller in this embodiment of the present application is a device for managing base stations, such as a base station controller (BSC) in a 2G network and a radio network controller (RNC) in a 3G network. ), and may also refer to a device for controlling and managing base stations in a new communication system in the future.
  • BSC base station controller
  • RNC radio network controller
  • the network side network in the embodiment of the present invention refers to a communication network that provides communication services for terminals, including a base station of a wireless access network, a base station controller of a wireless access network, and a device on the core network side.
  • the terminal in this embodiment of the present application may refer to various forms of user equipment (user equipment, UE for short), access terminal, subscriber unit, subscriber station, mobile station, mobile station (mobile station, built as MS), remote station, remote station A terminal, mobile device, user terminal, terminal equipment, wireless communication device, user agent or user equipment.
  • user equipment user equipment, UE for short
  • access terminal subscriber unit, subscriber station, mobile station, mobile station (mobile station, built as MS), remote station, remote station
  • subscriber unit subscriber station
  • mobile station mobile station (mobile station, built as MS)
  • remote station remote station
  • remote station remote station
  • remote station remote station
  • mobile device mobile device
  • user terminal terminal equipment
  • terminal equipment wireless communication device
  • user agent or user equipment user agent
  • the terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), Handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices with wireless communication capabilities, terminal devices in future 5G networks or future evolved public land mobile communication networks (Public Land Mobile Network, referred to as PLMN), which is not limited in this embodiment of the present application.
  • PLMN Public Land Mobile Network
  • the embodiment of the present application defines the unidirectional communication link from the access network to the terminal as the downlink, the data transmitted on the downlink is the downlink data, and the transmission direction of the downlink data is called the downlink direction;
  • the unidirectional communication link is the uplink, the data transmitted on the uplink is the uplink data, and the transmission direction of the uplink data is called the uplink direction.
  • connection in the embodiments of the present application refers to various connection modes such as direct connection or indirect connection, so as to realize communication between devices, which is not limited in the embodiments of the present application.
  • the processor may be a central processing unit (central processing unit, CPU for short), and the processor may also be other general-purpose processors, digital signal processors (digital signal processor, DSP for short) , application specific integrated circuit (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM for short), programmable read-only memory (PROM for short), erasable programmable read-only memory (EPROM for short) , Electrically Erasable Programmable Read-Only Memory (electrically EPROM, EEPROM for short) or flash memory.
  • Volatile memory may be random access memory (RAM), which acts as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous Dynamic random access memory
  • SDRAM synchronous Dynamic random access memory
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM Synchronous connection dynamic random access memory
  • DR RAM direct memory bus random access memory
  • the above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination.
  • the above-described embodiments may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server or data center Transmission by wire or wireless to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that contains one or more sets of available media.
  • the usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media.
  • the semiconductor medium may be a solid state drive.
  • the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.
  • the disclosed method, apparatus and system may be implemented in other manners.
  • the device embodiments described above are only illustrative; for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation; for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included individually, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units.
  • the above-mentioned integrated units implemented in the form of software functional units can be stored in a computer-readable storage medium.
  • the above-mentioned software functional unit is stored in a storage medium, and includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute some steps of the methods described in the various embodiments of the present invention.
  • the aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM for short), Random Access Memory (RAM for short), magnetic disk or CD, etc. that can store program codes medium.

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Abstract

一种中继通信方法及装置、存储介质、中继设备，中继通信方法包括：接收远端用户设备的接入指示信息，所述接入指示信息用于指示需要接入网络；响应于接收到所述接入指示信息，直接发起RRC恢复请求或RRC建立请求，或者，如果存在正在运行的禁止接入的定时器，则根据正在运行的定时器的类型确定是否发起RRC恢复请求或RRC建立请求，以请求建立RRC连接来转发所述远端用户设备的数据或信令。本发明技术方案能够提升中继设备在建立RRC连接或恢复RRC连接时的接入成功率。

Description

中继通信方法及装置、存储介质、中继设备
本申请要求2021年3月31日提交中国专利局、申请号为202110349347.7、发明名称为“中继通信方法及装置、存储介质、中继设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，尤其涉及一种中继通信方法及装置、存储介质、中继设备。
背景技术
在侧边链路传输中继(sidelink relay)场景中，一个远端用户设备(Remote UE)通过中继设备(Relay)接入网络，可以开展业务，可以拓展网络的覆盖。Remote UE可以处于小区边缘，或者处于网络覆盖范围之外。Relay处于小区覆盖范围之内，通常其所处的信道环境比较好。通常正在为Remote UE提供服务的Relay处于无线资源控制(Radio Resource Control,RRC)连接态，此时如果Remote UE与Relay之间已经建立了PC5 RRC连接，一旦Remote UE建立新的业务或者期待接入网络，Relay可以立即通过当前RRC连接向网络转发Remote UE的业务请求或接入请求。
为了使得Relay能够更好的省电，现在允许Relay进入空闲态或非激活态(Inactive)，此时如果有Remote UE期待通过这个Relay接入网络，Relay就需要建立RRC连接或者恢复RRC连接(针对非激活态转入连接态)。
但是，在建立RRC连接或恢复RRC连接时，Relay如何执行接入控制是需要解决的问题。
发明内容
本发明解决的技术问题是如何提升中继设备在建立RRC连接或恢复RRC连接时的接入成功率。
为解决上述技术问题，本发明实施例提供一种中继通信方法，中继通信方法包括：接收远端用户设备的接入指示信息，所述接入指示信息用于指示需要接入网络；响应于接收到所述接入指示信息，直接发起RRC恢复请求或RRC建立请求，或者，如果存在正在运行的禁止接入的定时器，则根据正在运行的定时器的类型确定是否发起RRC恢复请求或RRC建立请求，以请求建立RRC连接来转发所述远端用户设备的数据。
可选的，所述根据正在运行的定时器的类型确定是否发起RRC恢复请求或RRC建立请求包括：停止运行所述定时器，并发起所述RRC恢复请求或所述RRC建立请求。
可选的，所述根据正在运行的定时器的类型确定是否发起RRC恢复请求或RRC建立请求包括：在所述定时器类型为基站配置的定时时长时，发起所述RRC恢复请求或所述RRC建立请求，并在所述定时器计时结束之前，禁止发起自身业务；或者，禁止发起所述RRC恢复请求或所述RRC建立请求，直至所述定时器超时。
可选的，所述定时器类型为T302。
可选的，所述根据正在运行的定时器的类型确定是否发起RRC恢复请求或RRC建立请求包括：在所述定时器类型为接入类别相关的定时时长时，发起所述RRC恢复请求或所述RRC建立请求，并在所述定时器计时结束之前，禁止自身发起所述接入类别的业务；或者，禁止发起源于所述接入类别的所述RRC恢复请求或所述RRC建立请求，直至所述定时器超时。
可选的，所述定时器类型为T390。
可选的，所述中继通信方法还包括：如果不存在正在运行的禁止接入的定时器，则根据优先级最高或次高的自身的接入参数，或者根 据所述远端用户设备的接入参数实施接入控制。
可选的，所述根据接入参数实施接入控制之前还包括：接收所述远端用户设备的接入参数。
可选的，所述根据接入参数实施接入控制包括：采用优先级最高或次高的远端用户设备的接入参数实施接入控制。
可选的，所述接入参数包括接入原因和/或接入类别、接入标识。
为解决上述技术问题，本发明实施例还公开了一种中继通信装置，中继通信装置包括：接收模块，用于接收远端用户设备的接入指示信息，所述接入指示信息用于指示需要接入网络；请求发起模块，用于响应于接收到所述接入指示信息，直接发起RRC恢复请求或RRC建立请求，或者，如果存在正在运行的禁止接入的定时器，则根据正在运行的定时器的类型确定是否发起RRC恢复请求或RRC建立请求，以请求建立RRC连接来转发所述远端用户设备的数据。
本发明实施例还公开了一种存储介质，其上存储有计算机程序，所述计算机程序被处理器运行时执行所述中继通信方法的步骤。
本发明实施例还公开了一种中继设备，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行所述中继通信方法的步骤。
本发明实施例还公开了另一种中继通信方法，所述中继通信方法可以包括：接收远端用户设备的接入指示信息，所述接入指示信息用于指示需要接入网络；如果不存在正在运行的禁止接入的定时器，则根据优先级最高或次高的自身的接入参数，或者根据所述远端用户设备的接入参数实施接入控制。
本发明实施例还公开了另一种中继通信装置，所述中继通信装置包括：指示信息接收模块，用于接收远端用户设备的接入指示信息，所述接入指示信息用于指示需要接入网络；接入控制模块，用于在不存在正在运行的禁止接入的定时器时，根据优先级最高或次高的自身 的接入参数，或者根据所述远端用户设备的接入参数实施接入控制。
与现有技术相比，本发明实施例的技术方案具有以下有益效果：
本发明技术方案中，中继设备在接收到远端用户设备需要接入网络的指示信息之后，能够忽略可能运行的禁止接入的定时器，直接发起RRC恢复请求或RRC建立请求，从而提升中继设备接入网络的成功率；或者中继设备可以依据正在运行的定时器的类型确定是否发起RRC恢复请求或RRC建立请求，而定时器的类型能够反映基站的负载状态，使得中继设备在接入控制时考虑基站的负载，避免在高负载状态再次接入网络导致进一步拥塞，从而均衡网络负载。
进一步地，如果不存在正在运行的禁止接入的定时器，中继设备可以采用优先级最高或次高的接入原因实施接入控制，或者采用优先级最高或次高的远端用户设备的接入原因、接入类别以及接入标识实施接入控制。本发明技术方案中，中继设备采用较高优先级的接入原因实施接入控制能够提升中继设备接入网络的成功率。
附图说明
图1是本发明实施例一种中继通信方法的流程图；
图2是本发明实施例另一种中继通信方法的流程图；
图3是本发明实施例一种中继通信装置的结构示意图；
图4是本发明实施例另一种中继通信装置的结构示意图。
具体实施方式
如背景技术中所述，在建立RRC连接或恢复RRC连接时，Relay如何执行接入控制是需要解决的问题。
本发明实施例中，中继设备在接收到远端用户设备需要接入网络的指示信息之后，能够忽略可能运行的禁止接入的定时器，直接发起RRC恢复请求或RRC建立请求，从而提升中继设备接入网络的成功 率；或者中继设备可以依据正在运行的定时器的类型确定是否发起RRC恢复请求或RRC建立请求，而定时器的类型能够反映基站的负载状态，使得中继在接入控制时考虑基站的负载，避免在高负载状态再次接入网络导致进一步拥塞，从而均衡网络负载。
本方明技术方案可适用于5G(5 Generation)通信***，还可适用于4G、3G通信***，还可适用于未来新的各种通信***，例如6G、7G等。
为使本发明的上述目的、特征和优点能够更为明显易懂，下面结合附图对本发明的具体实施例做详细的说明。
图1是本发明实施例一种中继通信方法的流程图。
本发明实施例的中继通信方法可以用于中继设备侧，也即可以由所述中继设备执行所述方法的各个步骤。所述中继设备可以是用户设备，也可以是其他任意可实施的设备。
可以理解的是，在具体实施中，所述中继通信方法可以采用软件程序的方式实现，该软件程序运行于芯片或芯片模组内部集成的处理器中。
具体而言，所述中继通信方法可以包括以下步骤：
步骤S101：接收远端用户设备的接入指示信息，所述接入指示信息用于指示需要接入网络；
步骤S102：响应于接收到所述接入指示信息，直接发起RRC恢复请求或RRC建立请求，或者，如果存在正在运行的禁止接入的定时器，则根据正在运行的定时器的类型确定是否发起RRC恢复请求或RRC建立请求，以请求建立RRC连接来转发所述远端用户设备的数据或信令。
需要指出的是，本实施例中各个步骤的序号并不代表对各个步骤的执行顺序的限定。
可以理解的是，在具体实施中，所述中继通信方法可以采用软件程序的方式实现，该软件程序运行于芯片或芯片模组内部集成的处理器中。该方法也可以采用软件结合硬件的方式实现，本申请不作限制。
本发明实施例中，中继设备(Relay)处于服务小区的覆盖范围之内，可以为其他远端用户设备(Remote UE)提供中继服务。Relay可以周期性的向周边广播发现(Discovery)消息，以便周边的Remote UE可以发现Relay。Remote UE可以通过发现信息获知Relay所接入的服务小区的信息，如小区标识、小区所属的PLMN标识等。
需要说明的是，关于发现信息的具体内容可参照现有技术，本发明实施例对此不做限制。
本发明实施例中的中继设备处于空闲态或非激活态。在步骤S101的具体实施中，当某个Remote UE发现了Relay，并且期望通过Relay接入网络时，Remote UE可以与Relay建立直接通信的机制，例如建立PC5 RRC连接。Remote UE通过PC5 RRC连接向Relay发送接入指示信息，以指示需要接入网络，Remote UE可以通过显式信令指示需要接入网络，也可以通过隐式方式指示需要接入网络，比如Remote UE可以向Relay发送数据，而数据的目的地址不是该Relay，此时Relay需要意识到Remote UE需要将数据发送给网络。此时Relay需要转入RRC连接态，如果之前Relay处于非激活态，Relay此时需要发送RRC恢复请求(RRC Resume Request)。如果之前Relay处于空闲态，Relay此时需要发送RRC建立请求(RRC Setup Request)。
在本发明一个具体实施例中，在发送RRC恢复请求或RRC建立请求之前，中继设备可以执行如下的操作：判断自身是否允许发起RRC恢复请求或RRC建立请求，也就是说，中继设备判断自身是否存在正在运行的禁止接入的定时器。其中，在禁止接入的定时器超时之前，中继设备不能发起RRC恢复请求或RRC建立请求(也即RRC恢复请求和RRC建立请求)。
具体地，禁止接入的定时器可以包括T302和T390。对于定时器 T302，Relay针对自身业务发起了RRC建立请求或RRC恢复请求，但是服务基站返回了RRC拒绝或RRC释放，其中包含等待时间(wait time)的时长，即定时器T302时长。Relay收到之后，启动定时器T302，在定时器T302超时之前，Relay不能发起RRC建立请求或RRC恢复请求。对于定时器T390，Relay在针对自身业务需求尝试接入网络，在利用某个接入类别(Access category)执行接入控制(Access Control)时，发现禁止(Barred)，即不允许接入，Relay针对此次接入需求时自己的非接入层提供的接入类别，启动定时器T390，具体的时长是Relay按照协议的规则生成的一个时长数值。也就是说，定时器T390是与接入类别相关的，在定时器T390超时之后，Relay认为该接入类别的禁止被消除了，也即可以利用该接入类别发起RRC建立请求或RRC恢复请求。
在步骤S102的一种实施方式中，中继设备可以直接发起RRC恢复请求或RRC建立请求。换言之，不论是否存在正在运行的禁止接入的定时器，中继设备都会直接发起RRC恢复请求或RRC建立请求。例如，中继设备检测到存在正在运行的禁止接入的定时器，那么中继设备可以忽略该正在运行的定时器。本发明技术方案能够提升中继设备接入网络的成功率。
在一个可选实施例中，中继设备也可以不执行检测定时器的步骤，直接发起RRC恢复请求或RRC建立请求。
在步骤S102的另一种具体实施方式中，对于存在正在运行的禁止接入的定时器的情况，中继设备可以根据正在运行的定时器的类型确定是否发起RRC恢复请求或RRC建立请求。由于定时器的类型能够反映基站的负载状态或者网络的配置状态，因此中继设备在请求接入时考虑定时器的类型，可以实现接入的优化，本发明技术方案使得中继设备在接入控制时考虑基站的负载，避免在高负载状态再次接入网络导致进一步拥塞，从而均衡网络负载。
进一步地，当Relay发起RRC恢复请求或RRC建立请求之后， Relay接收服务基站返回的响应，Relay与服务基站建立RRC连接。之后Relay可以通过建立的RRC连接为Remote UE传递其业务请求等信息，之后服务基站与Relay之间可以建立数据无线承载以便传输Remote UE的数据，为Remote UE和服务基站之间交互业务数据和信令提供通道，起到中继的作用。
需要说明的是，本发明实施例的技术方案可以用于侧边链路传输中继(sidelink relay)场景，也可以是其他通信方式的中继场景，在上述场景中，需要中继设备提供中继服务，转发用户设备的数据或信令至网络侧。
在本发明一个非限制性的实施例中，图1所示步骤S102可以包括以下步骤：停止运行所述定时器，并发起所述RRC恢复请求或所述RRC建立请求。
本实施例中，无论当前运行的禁止接入的定时器是何种类型，中继设备均会停止运行该定时器，并发起所述RRC恢复请求或所述RRC建立请求。具体而言，停止运行该定时器是指终止该定时器，也即后续中继设备在针对自身业务发起连接请求时，该定时器也不再起作用。
在本发明一个非限制性的实施例中，图1所示步骤S102可以包括以下步骤：在所述定时器类型为基站配置的定时时长时，发起所述RRC恢复请求或所述RRC建立请求，并在所述定时器计时结束之前，禁止自身发起业务。
具体地，所述定时器类型为T302。
本实施例中，Relay收到Remote UE的需求而需要接入网络时，定时器T302仅用于Relay自身的业务需求，而不涉及Remote UE的业务需求。也就是说，定时器T302仅针对中继设备自身的业务，不会对远端用户设备的业务有限制。此时Relay可以采用继续运行定时器T302，即不允许Relay发起针对自身业务需求的连接请求，但允 许Relay为Remote UE承担中继角色，也即允许Relay发起针对Remote UE的业务需求的连接请求。
在本发明另一个非限制性的实施例中，中继设备禁止发起所述RRC恢复请求或所述RRC建立请求，直至所述定时器超时。
具体地，所述定时器类型为T302。
本实施例中，Relay收到了Remote UE的需求而需要接入网络时，继续沿用当前的机制，即T302超时之前Relay不能针对Remote UE的业务需求发起RRC建立请求或RRC恢复请求。
需要说明的是，本发明实施例所称的定时器不限于T302，也可以是后续通信技术的演进过程中出现的任意名称或任意形式的基站为中继配置的定时器。
在本发明一个非限制性的实施例中，图1所示步骤S102可以包括以下步骤：在所述定时器类型为接入类别相关的定时时长时，发起所述RRC恢复请求或所述RRC建立请求，并在所述定时器计时结束之前，禁止自身发起源于所述接入类别的业务请求。
具体地，所述定时器类型为T390。
本实施例中，定时器类型与接入类别相关，并且定时器仅对中继设备自身属于该接入类别的业务有限制。那么，中继设备可以发起所述RRC恢复请求或所述RRC建立请求，但在定时器计时结束之前，禁止自身发起源于所述接入类别的业务。
在本发明另一个非限制性的实施例中，禁止发起源于所述接入类别的所述RRC恢复请求或所述RRC建立请求，直至所述定时器超时。
具体地，所述定时器类型为T390。
与前述实施例不同的是，本实施例中，定时器不仅对中继设备自身属于该接入类别的业务有限制，还对属于该接入类别的远端UE的业务有限制。那么在远端UE针对属于该类别的业务请求中继设备接 入网络时，中继设备将不会发起RRC恢复请求或所述RRC建立请求，直至所述定时器超时。
上述实施例是针对存在正在运行的禁止接入的定时器时的实施方式，在不存在正在运行的禁止接入的定时器时，中继设备将按照图2所示方法的流程实施接入控制。
如图2所示，所述中继通信方法可以包括以下步骤：
步骤S201：接收远端用户设备的接入指示信息，所述接入指示信息用于指示需要接入网络；
步骤S202：如果不存在正在运行的禁止接入的定时器，则根据优先级最高或次高的自身的接入参数，或者根据所述远端用户设备的接入参数实施接入控制。
关于步骤S201的具体实施方式可以参照步骤S101的相关实施例，此处不再赘述。
在步骤S202的一种具体实施中，中继设备可以根据优先级最高或次高的自身的接入参数实施接入控制。所述接入参数包括接入原因、接入类别(Access category)和/或接入标识(Access identity)。也就是说，中继设备在针对远端UE的业务需求实施接入控制时，总是采用较高优先级的接入参数，从而保证接入的成功率，保证能够优先为远端UE提供中继服务。
具体而言，接入原因与接入类别具有映射关系，在确定其中一种时，就可以确定另外一种。具体地，在Relay总是以较高优先级的接入原因实施接入控制时，Relay依据较高优先级接入原因对应的接入类别实施接入控制。用户设备(例如中继设备)的高层在发起业务需求时，会向用户设备的接入层指示接入类别和接入标识，同时也会指示接入原因；用户设备的接入层依据接入类别和接入标识，以及依据***消息中的接入控制参数实施接入控制，判断是否允许接入网络。
在步骤S202的另一种具体实施中，中继设备可以根据所述远端 用户设备的接入参数实施接入控制。其中，远端用户设备的接入参数可以预先通过PC5 RRC连接发送给中继设备。
具体实现中，在步骤S202之前可以包括以下步骤：接收所述远端用户设备的接入参数。例如，远端UE可以在通过PC5 RRC连接向中继设备指示需要接入网络时，一并将接入参数发送给中继设备。
在一个非限制性的实施例中，中继设备还可以根据自身的接入参数实施接入控制。
在一个非限制性的实施例中，在多个远端用户设备同时向中继设备请求接入网络时，多个远端用户设备的接入参数均会发送给中继设备。在这种情况下，中继设备可以采用优先级最高或次高的远端用户设备的接入参数实施接入控制，从而提升接入的成功率。此处“同时”并不表示时间上完全同步，可以有一定的差异，中继设备在一段时间内接收到多个远端用户设备的接入网络请求时，依据多个用户设备中优先级最高或次高的接入参数实施接入控制。
例如，Relay接收多个Remote UE的业务请求或连接请求，在执行接入控制时，Relay以多个Remote UE中最高的优先级或次高优先级的接入原因作为本次实施接入控制的接入原因。
需要说明的是，Relay按照接入类别和接入标识执行接入控制的流程与现有协议规定的方法相同，本发明实施例在此不再赘述
请参照图3，本发明实施例还公开了一种中继通信装置30。中继通信装置30可以包括：
接收模块301，用于接收远端用户设备的接入指示信息，所述接入指示信息用于指示需要接入网络；
请求发起模块302，用于响应于接收到所述接入指示信息，直接发起RRC恢复请求或RRC建立请求，或者，如果存在正在运行的禁止接入的定时器，则根据正在运行的定时器的类型确定是否发起RRC恢复请求或RRC建立请求，以请求建立RRC连接来转发所述远端用 户设备的数据或信令。
本发明实施例能够解决中继设备因为Remote UE的需求而接入网络时的接入控制问题，提升了中继设备接入的成功率，同时也考虑了网络的负荷状态，避免在高负载状态再次接入网络造成进一步拥塞。
请参照图4，本发明实施例还公开了一种中继通信装置40。中继通信装置40可以包括：
指示信息接收模块401，用于接收远端用户设备的接入指示信息，所述接入指示信息用于指示需要接入网络；
接入控制模块402，用于在不存在正在运行的禁止接入的定时器时，根据优先级最高或次高的自身的接入参数，或者根据所述远端用户设备的接入参数实施接入控制。
本发明实施例能够在不存在正在运行的禁止接入的定时器时，通过实施接入控制提升接入成功率，以能够优先为远端UE提供中继服务。
关于所述中继通信装置30和中继通信装置40的工作原理、工作方式的更多内容，可以参照图1至图2中的相关描述，这里不再赘述。
在具体实施中，上述中继通信装置30和中继通信装置40可以对应于中继设备中具有中继通信功能的芯片，例如SOC(System-On-a-Chip，片上***)、基带芯片等；或者对应于中继设备中包括具有中继通信功能的芯片模组；或者对应于具有数据处理功能芯片的芯片模组，或者对应于中继设备。
关于上述实施例中描述的各个装置、产品包含的各个模块/单元，其可以是软件模块/单元，也可以是硬件模块/单元，或者也可以部分是软件模块/单元，部分是硬件模块/单元。例如，对于应用于或集成于芯片的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，或者，至少部分模块/单元可以采用软件程序的 方式实现，该软件程序运行于芯片内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于芯片模组的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于芯片模组的同一组件(例如芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片模组内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于终端的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于终端内同一组件(例如，芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于终端内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现。
本发明实施例还公开了一种存储介质，所述存储介质为计算机可读存储介质，其上存储有计算机程序，所述计算机程序运行时可以执行图1或图2中所示中继通信方法的步骤。所述存储介质可以包括ROM、RAM、磁盘或光盘等。所述存储介质还可以包括非挥发性存储器(non-volatile)或者非瞬态(non-transitory)存储器等。
本发明实施例还公开了一种中继设备，所述中继设备可以包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序。所述处理器运行所述计算机程序时可以执行图1或图2所示方法的步骤。所述中继设备可以是用户设备，具体包括但不限于手机、计算机、平板电脑等终端设备。
本方明技术方案也适用于不同的网络架构，包括但不限于中继网络架构、双链接架构、Vehicle-to-Everything(车辆到任何物体的通信)架构等架构。
本申请实施例中所述核心网可以是演进型分组核心网(evolved packet core，简称EPC)、5G Core Network(5G核心网)，还可以是 未来通信***中的新型核心网。5G Core Network由一组设备组成，并实现移动性管理等功能的接入和移动性管理功能(Access and Mobility Management Function，AMF)、提供数据包路由转发和QoS(Quality of Service)管理等功能的用户面功能(User Plane Function,UPF)、提供会话管理、IP地址分配和管理等功能的会话管理功能(Session Management Function，SMF)等。EPC可由提供移动性管理、网关选择等功能的MME、提供数据包转发等功能的Serving Gateway(S-GW)、提供终端地址分配、速率控制等功能的PDN Gateway(P-GW)组成。
本申请实施例中的基站(base station，简称BS)，也可称为基站设备，是一种部署在无线接入网(RAN)用以提供无线通信功能的装置。例如在2G网络中提供基站功能的设备包括基地无线收发站(英文：base transceiver station,简称BTS)，3G网络中提供基站功能的设备包括节点B(NodeB)，在4G网络中提供基站功能的设备包括演进的节点B(evolved NodeB，eNB)，在无线局域网络(wireless local area networks，简称WLAN)中，提供基站功能的设备为接入点(access point，简称AP)，5G新无线(New Radio，简称NR)中的提供基站功能的设备gNB,以及继续演进的节点B(ng-eNB),其中gNB和终端之间采用NR技术进行通信，ng-eNB和终端之间采用E-UTRA(Evolved Universal Terrestrial Radio Access)技术进行通信，gNB和ng-eNB均可连接到5G核心网。本申请实施例中的基站还包含在未来新的通信***中提供基站功能的设备等。
本申请实施例中的基站控制器，是一种管理基站的装置，例如2G网络中的基站控制器(base station controller，简称BSC)、3G网络中的无线网络控制器(radio network controller，简称RNC)、还可指未来新的通信***中控制管理基站的装置。
本发明实施例中的网络侧network是指为终端提供通信服务的通信网络，包含无线接入网的基站，还可以包含无线接入网的基站控制 器，还可以包含核心网侧的设备。
本申请实施例中的终端可以指各种形式的用户设备(user equipment，简称UE)、接入终端、用户单元、用户站、移动站、移动台(mobile station，建成MS)、远方站、远程终端、移动设备、用户终端、终端设备(terminal equipment)、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，简称SIP)电话、无线本地环路(Wireless Local Loop，简称WLL)站、个人数字处理(Personal Digital Assistant，简称PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network，简称PLMN)中的终端设备等，本申请实施例对此并不限定。
本申请实施例定义接入网到终端的单向通信链路为下行链路，在下行链路上传输的数据为下行数据，下行数据的传输方向称为下行方向；而终端到接入网的单向通信链路为上行链路，在上行链路上传输的数据为上行数据，上行数据的传输方向称为上行方向。
应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/“，表示前后关联对象是一种“或”的关系。
本申请实施例中出现的“多个”是指两个或两个以上。
本申请实施例中出现的第一、第二等描述，仅作示意与区分描述对象之用，没有次序之分，也不表示本申请实施例中对设备个数的特别限定，不能构成对本申请实施例的任何限制。
本申请实施例中出现的“连接”是指直接连接或者间接连接等各种连接方式，以实现设备间的通信，本申请实施例对此不做任何限定。
应理解，本申请实施例中，所述处理器可以为中央处理单元(central processing unit，简称CPU)，该处理器还可以是其他通用处理器、数字信号处理器(digital signal processor，简称DSP)、专用集成电路(application specific integrated circuit，简称ASIC)、现成可编程门阵列(field programmable gate array，简称FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还应理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，简称ROM)、可编程只读存储器(programmable ROM，简称PROM)、可擦除可编程只读存储器(erasable PROM，简称EPROM)、电可擦除可编程只读存储器(electrically EPROM，简称EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，简称RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的随机存取存储器(random access memory，简称RAM)可用，例如静态随机存取存储器(static RAM，简称SRAM)、动态随机存取存储器(DRAM)、同步动态随机存取存储器(synchronous DRAM，简称SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，简称DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，简称ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，简称SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，简称DR RAM)。
上述实施例，可以全部或部分地通过软件、硬件、固件或其他任意组合来实现。当使用软件实现时，上述实施例可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令或计算机程序。在计算机上加载或执行所述计算机指令或计算机程序时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以为通用计算机、专用计算机、计算机网络、或者 其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线或无线方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集合的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质。半导体介质可以是固态硬盘。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
在本申请所提供的几个实施例中，应该理解到，所揭露的方法、装置和***，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的；例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式；例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理包括，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述方法的部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
虽然本发明披露如上，但本发明并非限定于此。任何本领域技术人员，在不脱离本发明的精神和范围内，均可作各种更动与修改，因此本发明的保护范围应当以权利要求所限定的范围为准。

Claims (13)

  1. 一种中继通信方法，其特征在于，包括：
    接收远端用户设备的接入指示信息，所述接入指示信息用于指示需要接入网络；
    响应于接收到所述接入指示信息，直接发起RRC恢复请求或RRC建立请求，或者，如果存在正在运行的禁止接入的定时器，则根据正在运行的定时器的类型确定是否发起RRC恢复请求或RRC建立请求，以请求建立RRC连接来转发所述远端用户设备的信令或数据。
  2. 根据权利要求1所述的中继通信方法，其特征在于，所述根据正在运行的定时器的类型确定是否发起RRC恢复请求或RRC建立请求包括：
    停止运行所述定时器，并发起所述RRC恢复请求或所述RRC建立请求。
  3. 根据权利要求1所述的中继通信方法，其特征在于，所述根据正在运行的定时器的类型确定是否发起RRC恢复请求或RRC建立请求包括：
    在所述定时器类型为基站配置的定时时长时，发起所述RRC恢复请求或所述RRC建立请求，并在所述定时器计时结束之前，禁止自身发起业务请求；
    或者，禁止发起所述RRC恢复请求或所述RRC建立请求，直至所述定时器超时。
  4. 根据权利要求3所述的中继通信方法，其特征在于，所述定时器类型为T302。
  5. 根据权利要求1所述的中继通信方法，其特征在于，所述根据正在运行的定时器的类型确定是否发起RRC恢复请求或RRC建立 请求包括：
    在所述定时器类型为接入类别相关的定时时长时，发起所述RRC恢复请求或所述RRC建立请求，并在所述定时器计时结束之前，禁止自身发起所述接入类别的业务请求；
    或者，禁止发起源于所述接入类别的所述RRC恢复请求或所述RRC建立请求，直至所述定时器超时。
  6. 根据权利要求5所述的中继通信方法，其特征在于，所述定时器类型为T390。
  7. 根据权利要求1所述的中继通信方法，其特征在于，还包括：
    如果不存在正在运行的禁止接入的定时器，则根据优先级最高或次高的自身的接入参数，或者根据所述远端用户设备的接入参数实施接入控制。
  8. 根据权利要求7所述的中继通信方法，其特征在于，所述根据接入参数实施接入控制之前还包括：
    接收所述远端用户设备的接入参数。
  9. 根据权利要求8所述的中继通信方法，其特征在于，所述根据接入参数实施接入控制包括：
    采用优先级最高或次高的远端用户设备的接入参数实施接入控制。
  10. 根据权利要求7至9任一项所述的中继通信方法，其特征在于，所述接入参数包括至少其中之一：接入原因、接入类别、接入标识。
  11. 一种中继通信装置，其特征在于，包括：
    接收模块，用于接收远端用户设备的接入指示信息，所述接入指示信息用于指示需要接入网络；
    请求发起模块，用于响应于接收到所述接入指示信息，直接发起连接恢复请求或连接建立请求，或者，如果存在正在运行的禁止接入的定时器，则根据正在运行的定时器的类型确定是否发起连接恢复请求或连接建立请求，以请求建立RRC连接来转发所述远端用户设备的数据。
  12. 一种存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器运行时执行权利要求1至10中任一项所述中继通信方法的步骤。
  13. 一种中继设备，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，其特征在于，所述处理器运行所述计算机程序时执行权利要求1至10中任一项所述中继通信方法的步骤。
PCT/CN2021/136028 2021-03-31 2021-12-07 中继通信方法及装置、存储介质、中继设备 WO2022206007A1 (zh)

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