WO2023216117A1 - 一种中继通信方法、装置、设备及存储介质 - Google Patents

一种中继通信方法、装置、设备及存储介质 Download PDF

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Publication number
WO2023216117A1
WO2023216117A1 PCT/CN2022/092064 CN2022092064W WO2023216117A1 WO 2023216117 A1 WO2023216117 A1 WO 2023216117A1 CN 2022092064 W CN2022092064 W CN 2022092064W WO 2023216117 A1 WO2023216117 A1 WO 2023216117A1
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Prior art keywords
relay
remote
qos
terminal
indication information
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PCT/CN2022/092064
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English (en)
French (fr)
Inventor
沈洋
王鑫丽
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202280001682.0A priority Critical patent/CN117397300A/zh
Priority to PCT/CN2022/092064 priority patent/WO2023216117A1/zh
Publication of WO2023216117A1 publication Critical patent/WO2023216117A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point

Definitions

  • the present disclosure relates to the field of communication technology, and in particular, to a relay communication method, device, equipment and storage medium.
  • Proximity based Services can provide relay functions to support the fifth generation wireless communication system (The 5th Generation Wireless Communication System, 5G) ProSe remote user equipment (User Equipment, UE) network connection.
  • the ProSe UE-to-Network Relay can be used for public safety services and commercial services, including interactive services, for example. Among them, UE-to-Network Relay is also called relay UE (Relay UE).
  • ProSe UE-to-Network Relay can support the following functions to achieve connection with the network:
  • the 5G ProSe UE-to-Network Relay discovery service defined in the current specification can allow ProSe UE-to-Network Relay to be 5G ProSe Remote UE discovery; use ProSe UE-to-Network Relay as a UE to access the 5G system (5G System, 5GS).
  • IP Internet Protocol
  • Ethernet unstructured service types
  • the present disclosure provides a relay communication method, device, equipment and storage medium.
  • a relay communication method which method is applied to a relay terminal.
  • the method may include: in response to receiving relay service requests sent by multiple remote terminals, The terminal performs quality of service QoS capability testing. Based on the capability detection results, multiple remote terminals are relayed to the network.
  • the disclosed relay terminal passes the capability detection and performs relay services for multiple remote terminals based on the capability detection results, thereby achieving fair and effective QoS sharing for each remote terminal accessing the network through the same relay.
  • relaying multiple remote terminals to access the network may include: in response to the capability detection result indicating that the QoS capability is not satisfied, providing relay for multiple remote terminals at the same time.
  • the service includes sending resource limitation indication information to at least one remote terminal among multiple remote terminals, where the resource limitation indication information is used to instruct the remote terminal to adjust the relay access network policy.
  • sending the resource restriction indication information to at least one remote terminal among the plurality of remote terminals may include: according to the priority level corresponding to each remote terminal among the plurality of remote terminals, At least one remote terminal whose priority level meets the preset conditions sends resource restriction indication information.
  • the method may further include: in response to meeting a condition for creating a packet data unit PDU session, re-creating the PDU session.
  • meeting the conditions for creating a PDU session includes at least one of the following: the packet data unit PDU session created by the relay terminal is not sufficient to allow multiple remote terminals to access the network; creating a new PDU after receiving Session instructions.
  • relaying multiple remote terminals to access the network includes: responding to the capability detection result that the QoS capability is satisfied and providing relay services to multiple remote terminals at the same time, Perform relaying on multiple remote terminals so that multiple remote terminals can access the network.
  • a relay communication method which method is applied to a remote terminal.
  • the method may include: receiving resource limitation indication information sent by the relay terminal, and the resource limitation indication information is medium
  • the relay terminal is sent based on the quality of service QoS capability detection result, which is sent when the QoS capability does not meet the requirement to provide relay services for multiple remote terminals at the same time; the relay access network policy is adjusted based on the resource limitation indication information.
  • the present disclosure adjusts the relay access network policy through the resource restriction indication information sent after the relay terminal capability detection, thereby achieving fair and effective QoS sharing for each remote terminal accessing the network through the same relay.
  • adjusting the relay access network policy includes: adjusting the QoS level of the remote terminal in response to the remote terminal supporting multiple QoS levels.
  • adjusting the relay access network policy includes: adjusting the relay terminal accessed by the remote terminal.
  • a relay communication device is provided.
  • the device is a relay terminal.
  • the device includes: a processing module configured to respond to receiving relay service requests sent by multiple remote terminals.
  • the relay terminal performs quality of service QoS capability detection; the processing module is also used to relay access to the network for multiple remote terminals based on the capability detection results.
  • the disclosed relay terminal passes the capability detection and performs relay services for multiple remote terminals based on the capability detection results, thereby achieving fair and effective QoS sharing for each remote terminal accessing the network through the same relay.
  • the device further includes: a sending module, configured to provide relay services to multiple remote terminals at the same time in response to the capability detection result being that the QoS capability is not satisfied, and to at least one of the multiple remote terminals.
  • the remote terminal sends resource limitation indication information, and the resource limitation indication information is used to instruct the remote terminal to adjust the relay access network policy.
  • the sending module is further configured to: send the resource recipient to at least one remote terminal whose priority level meets the preset condition according to the priority level corresponding to each remote terminal among the plurality of remote terminals. Limited instruction information.
  • the processing module is further configured to: in response to meeting the conditions for creating a packet data unit PDU session, re-create the PDU session.
  • the device further includes: a receiving module; the conditions for creating a PDU session include at least one of the following: the packet data unit PDU session created by the relay terminal does not meet the requirements for multiple remote terminals to access the network. ; The receiving module receives the instruction information to create a new PDU session.
  • the processing module is further configured to: provide relay services for multiple remote terminals simultaneously in response to the capability detection result being that the QoS capabilities are satisfied, and perform relaying for the multiple remote terminals so that the multiple remote terminals can A remote terminal accesses the network.
  • a relay communication device is provided.
  • the device is a remote terminal.
  • the device includes: a receiving module configured to receive resource limitation indication information sent by the relay terminal.
  • the resource limitation indication information It is the detection result of the QoS capability of the relay terminal based on the quality of service, and is sent when the QoS capability is not sufficient to provide relay services for multiple remote terminals at the same time; the processing module is used to adjust the relay access network policy based on the resource restriction indication information. .
  • the present disclosure adjusts the relay access network policy through the resource restriction indication information sent after the relay terminal capability detection, thereby achieving fair and effective QoS sharing for each remote terminal accessing the network through the same relay.
  • the processing module is further configured to: adjust the QoS level of the remote terminal in response to the fact that the remote terminal supports multiple QoS levels.
  • the processing module is also used to adjust the relay terminal accessed by the remote terminal.
  • a relay communication device including: a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to perform the first aspect or the first aspect The method described in any one of the embodiments.
  • a relay communication device including: a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to execute the second aspect or the second aspect The method described in any one of the embodiments.
  • a non-transitory computer-readable storage medium which when instructions in the storage medium are executed by a processor of the relay terminal, enables the relay terminal to execute the first aspect or the third aspect.
  • a non-transitory computer-readable storage medium which when instructions in the storage medium are executed by a processor of a remote terminal, enables the remote terminal to execute the second aspect or the third aspect.
  • the relay terminal passes the capability detection and performs relay services for multiple remote terminals based on the capability detection results, thereby enabling access to the network through the same relay.
  • Each remote terminal realizes fair and effective QoS sharing.
  • Figure 1 is a schematic diagram of a relay communication scenario according to an exemplary embodiment.
  • Figure 2 is a schematic diagram of an end-to-end QoS configuration according to an exemplary embodiment.
  • Figure 3 is a flow chart of a relay communication method according to an exemplary embodiment.
  • Figure 4 is a flow chart of another relay communication method according to an exemplary embodiment.
  • Figure 5 is a flow chart of yet another relay communication method according to an exemplary embodiment.
  • Figure 6 is a flow chart of yet another relay communication method according to an exemplary embodiment.
  • Figure 7 is a flow chart of another relay communication method according to an exemplary embodiment.
  • Figure 8 is a schematic diagram of a relay communication signaling flow according to an exemplary embodiment.
  • Figure 9 is a schematic diagram of another relay communication signaling flow according to an exemplary embodiment.
  • Figure 10 is a schematic diagram of a relay communication device according to an exemplary embodiment.
  • Figure 11 is a schematic diagram of another relay communication device according to an exemplary embodiment.
  • Figure 12 is a schematic diagram of a relay communication device according to an exemplary embodiment.
  • This scenario can include remote terminals (i.e. 5G ProSe Remote UE or ProSe Remote UE, Remote UE, remote UE, etc.), Relay UE , base station, core network and data network (Data Network).
  • the base station can be the Next Generation-Radio Access Network (NG-RAN)
  • the core network can be the 5G Core Network (5G Core, 5GC)
  • NG-RAN and 5GC can be collectively referred to as 5GS.
  • Relay UE can use the Uu interface to relay with NG-RAN to realize information exchange, and can use the PC5 interface to relay with Remote UE to realize information exchange.
  • the N6 interface can be used to implement data communication with the data network.
  • relay communication scenario shown in Figure 1 is only a schematic illustration.
  • the relay communication system may also include other network devices or terminals, such as wireless backhaul devices, etc.
  • Figure 1 Not drawn.
  • the embodiments of the present disclosure do not limit the number of devices and terminals included in the relay communication scenario.
  • the relay communication scenario of the embodiment of the present disclosure includes a network that provides wireless communication functions.
  • the network with this wireless communication function can be implemented using different communication technologies, such as Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Time Division Multiple Access (Time Division Multiple Access) Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency-Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single Carrier FDMA, SC-FDMA) , Carrier Sense Multiple Access with Collision Avoidance (Carrier Sense Multiple Access with Collision Avoidance).
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • Time Division Multiple Access Time Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA frequency division multiple access
  • OFDMA Orthogonal frequency division multiple access
  • Single carrier frequency division multiple access Single Carrier FDMA, SC-FDMA
  • networks can be divided into 2G (English: Generation) networks, 3G networks, 4G networks or future evolution networks, such as 5G networks.
  • 5G networks can also be called new wireless networks ( New Radio, NR).
  • this disclosure sometimes refers to the wireless communication network as simply a network.
  • the base station involved in this disclosure may also be called a wireless access network device.
  • the wireless access network device can also be: an evolved base station (evolved Node B, eNB), a home base station, an access point (Access Point, AP) in a wireless fidelity (Wireless Fidelity, WIFI) system, and a wireless backhaul node Or a transmission point (TP), etc., it can also be a gNB in the NR system, or it can be a component or part of the equipment that constitutes a base station, etc.
  • the network device can also be a vehicle-mounted device.
  • V2X vehicle-to-everything
  • the remote terminal or relay terminal involved in this disclosure may also be called a terminal device, a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal, MT), etc., and is a device that provides users with voice and /or data connectivity devices, for example, the terminal can be a handheld device, a vehicle-mounted device, etc. with wireless connection function.
  • the terminals are: smartphones (Mobile Phone), pocket computers (Pocket Personal Computer, PPC), PDAs, personal digital assistants (Personal Digital Assistant, PDA), notebook computers, tablet computers, wearable devices, or Vehicle equipment, etc.
  • V2X vehicle-to-everything
  • the terminal device may also be a vehicle-mounted device. It should be understood that the embodiments of the present disclosure do not limit the specific technology and specific equipment form used by the terminal.
  • the relay terminal involved in this disclosure should be a terminal device having a relay function.
  • Remote UE when Remote UE needs to communicate with the user plane function (User Plane Function, UPF), it can be relayed through Relay UE.
  • QoS quality of service
  • End-to-End QoS end-to-end QoS
  • the corresponding QoS control of the PC5 interface such as PC5 QoS control
  • PDU Packet Data Unit
  • PC5 QoS can be controlled using PC5 QoS rules and PC5 QoS parameters, such as specified in clause 5.4 of Technical Specification (TS) 23.287.
  • the PC5 QoS parameters may include, for example, PC5 QoS indicator (PC5 QoS indicator, PQI), guaranteed flow bit rate (Guaranteed Flow Bit Rate, GFBR), maximum flow bit rate (Maximum Flow Bit Rate, MFBR), PC5 link aggregation Maximum bit rate (PC5 link Aggregated Maximum Bit Rate, PC5 LINK-AMBR), range (Range), etc.
  • PC5 QoS indicator PC5 QoS indicator, PQI
  • guaranteed flow bit rate Guarantee Flow Bit Rate, GFBR
  • maximum flow bit rate Maximum Flow Bit Rate
  • MFBR maximum flow bit rate
  • PC5 link aggregation Maximum bit rate PC5 link Aggregated Maximum Bit Rate, PC5 LINK-AMBR
  • range Range
  • the Uu QoS of the PDU session established between Relay UE and UPF can be controlled using QoS rules and 5G QoS parameters.
  • the 5G QoS parameters can be, for example, 5G QoS indicator (5G QoS indicator, 5QI), GFBR, MFBR, etc.
  • End-to-End QoS can only be satisfied when the QoS requirements are appropriately translated and satisfied on both branches, PC5 QoS and Uu QoS respectively.
  • QoS mapping can be pre-configured or provided to the user by using the Policy Control Function (PCF) of the proximity service policy (Prose Policy).
  • PCF Policy Control Function
  • Prose Policy proximity service policy
  • Relay UE The QoS mapping may include one or more mapping entries, for example, it may include mapping entries in 5QI and PQI.
  • the session management function (SMF) of the network test can use the PDU session (Session) according to the Policy and Charging Control (PCC) rules or its local configuration.
  • PCC Policy and Charging Control
  • Establishment/Modification procedure generates QoS rules and QoS Flow level QoS parameters (such as 5QI, GFBR, MFBR, etc.) and signals to Relay UE.
  • the SMF always provides QoS Flow level QoS parameters to the Relay UE when establishing QoS Flow. Then, the Relay UE determines the PQI based on the QoS mapping, and determines the PC5 QoS parameters for the corresponding PC5 QoS Flow through the determined PQI, and sets the GFBR and MFBR of the PC5 guaranteed bit rate (Guaranteed Bit Rate, GBR) QoS flow to GBR respectively. GFBR and MFBR values of the QoS flow.
  • GBR Guarantee Bit Rate
  • Remote UE can provide QoS information (Info) to Relay UE to achieve the establishment or modification of PC5 QoS Flows.
  • the PC5 QoS parameters contained in the QoS Info received by the Relay UE can be interpreted as the QoS requirements that the Relay UE needs to meet, that is, the End-to-End QoS requirements for service transmission between the Remote UE and the UPF.
  • PC5 QoS parameters may include, for example, PQI, and other conditional parameters, such as MFBR/GFBR and other parameters.
  • the Relay UE can use the 5QI in the mapping entry to control Uu QoS, and the Relay UE can use the PQI in the mapping entry to control PC5 QoS. If the End-to-End QoS requirement cannot be supported by any mapping entry in the QoS map, the Relay UE determines the 5QI for Uu QoS control and the PQI for PC5 QoS control based on its implementation. Relay UE provides QoS Info (which may include, for example, the PQI value selected by Relay UE) to Remote UE as part of the Accept message.
  • QoS Info which may include, for example, the PQI value selected by Relay UE
  • the present disclosure provides a relay communication method.
  • the relay terminal passes the capability detection and performs relay services for multiple remote terminals based on the capability detection results, thereby enabling remote terminals to access the network through the same relay. End terminals achieve fair and effective QoS sharing.
  • FIG 3 is a flow chart of a relay communication method according to an exemplary embodiment.
  • a relay communication method can be used for relay terminals, such as Figure 1, Relay UE in Figure 2, this method may include the following steps:
  • step S11 in response to receiving relay service requests sent by multiple remote terminals, quality of service QoS capability detection is performed on the relay terminal.
  • the Remote UE when the Remote UE needs to access the network but there is no network coverage around it, the Remote UE can discover the relay and establish a connection with the relay, thereby enabling the Remote UE to access the network. Therefore, the Remote UE can perform the relay discovery procedure and thereby detect the Relay UE. And establish a connection with Relay UE.
  • the Relay UE can perform QoS capability detection to determine whether the Relay UE can meet the QoS required by multiple Remote UEs.
  • step S12 multiple remote terminals are relayed to access the network based on the capability detection results.
  • Relay UE can perform corresponding relays on multiple Remote UEs to access the network based on the QoS capability detection results in S11.
  • the disclosed relay terminal passes the capability detection and performs relay services for multiple remote terminals based on the capability detection results, thereby achieving fair and effective QoS sharing for each remote terminal accessing the network through the same relay.
  • Fig. 4 is a flow chart of another relay communication method according to an exemplary embodiment. As shown in Fig. 4, a relay communication method is used to conduct on-process processing of multiple remote terminals based on capability detection results. Following access to the network, the following steps may be included:
  • step S21 in response to the capability detection result being that the QoS capability is not satisfied and providing relay services for multiple remote terminals at the same time, resource restriction indication information is sent to at least one remote terminal among the multiple remote terminals.
  • the resource is limited.
  • the instruction information is used to instruct the remote terminal to adjust the relay access network policy.
  • the Relay UE can send Limited Resource Indication information to at least one Remote UE among the multiple Remote UEs.
  • the resource limitation indication information can be used to instruct the corresponding Remote UE to adjust the relay access network policy.
  • sending resource restriction indication information to at least one remote terminal among multiple remote terminals may include: according to the priority level corresponding to each remote terminal among the multiple remote terminals, Resource restriction indication information is sent to at least one remote terminal whose priority level meets a preset condition.
  • different Remote UEs may be pre-configured with different priority levels.
  • resource restriction indication information can be sent to at least one Remote UE whose priority level meets the preset conditions.
  • the preconfigured priority level can also refer to the priority level (Priority level) in the PQI in the PC5 QoS information, and use the Priority level in the PQI as the priority of the corresponding Remote UE.
  • the preset condition may be that a priority threshold is preconfigured, and the Relay UE may send resource limitation indication information to at least one Remote UE whose priority level is lower than the priority threshold.
  • the preset condition may be to send resource limitation indication information to at least one Remote UE with a lower priority level. For example, it is to send resource limitation indication information to the Remote UE with the lowest priority level; or it is to sort multiple Remote UEs from high to low or from low to high according to the priority level, and send the sorted result priority level to The lowest X Remote UEs send resource restriction indication information.
  • X is a positive integer, and its specific value can be set arbitrarily according to the actual situation, and is not limited in this disclosure.
  • FIG. 5 is a flow chart of yet another relay communication method according to an exemplary embodiment. As shown in Figure 5, a relay communication method may also include the following steps:
  • step S31 in response to satisfying the conditions for creating a packet data unit PDU session, the PDU session is re-created.
  • the PDU session can be re-created for the corresponding Remote UE.
  • the conditions for creating a PDU session include at least one of the following: the packet data unit PDU session created by the relay terminal is not sufficient to allow multiple remote terminals to access the network; creating a new session after receiving PDU session indication information.
  • Relay UE can pre-create a PDU session.
  • the PDU session can be re-created for the unsatisfied Remote UE.
  • the Relay UE may not have created a PDU session in advance, and the current relay service requests of multiple Remote UEs may include instructions for creating new PDU sessions.
  • the Relay UE may create a new PDU session based on The instruction information of the PDU session re-creates the PDU session for the current multiple Remote UEs.
  • the Relay UE can continue to provide corresponding relay services for the Remote UEs among multiple Remote UEs that have not sent resource limitation indication information. .
  • it may include creating a new PDU session for a Remote UE that has not sent resource restriction indication information.
  • FIG. 6 is a flow chart of yet another relay communication method according to an exemplary embodiment. As shown in Figure 6, a relay communication method is used to perform on-process processing on multiple remote terminals based on capability detection results. Following access to the network, the following steps may be included:
  • step S41 in response to the capability detection result being that the QoS capability satisfies the requirement to simultaneously provide relay services for multiple remote terminals, relaying the multiple remote terminals is performed so that the multiple remote terminals access the network.
  • Relay UE can satisfy all relay services of multiple Remote UEs, that is, the required QoS of multiple Remote UEs can be satisfied.
  • Relay UE can perform corresponding relay services for multiple Remote UEs so that multiple Remote UEs can access the network.
  • the Relay UE can be pre-created with a PDU session and use the pre-created PDU session to relay multiple Remote UEs.
  • Relay UE can also create new PDU sessions for multiple Remote UEs to relay multiple Remote UEs.
  • the disclosed Relay UE can pass capability detection and perform relay services for multiple Remote UEs based on the capability detection results, thereby achieving fair and effective QoS sharing for each Remote UE accessing the network through the same relay.
  • FIG. 7 is a flow chart of a relay communication method according to an exemplary embodiment.
  • a relay communication method can be used for relay terminals, such as Figure 1, For Remote UE in Figure 2, the method may include the following steps:
  • step S51 receive resource limitation indication information sent by the relay terminal.
  • the resource limitation indication information is when the relay terminal provides relay services for multiple remote terminals at the same time based on the quality of service QoS capability detection result that the QoS capability is not satisfied. Sent.
  • the Remote UE may receive the resource restriction indication information sent by the Relay UE.
  • This resource limitation indication information is sent when the Relay UE detects that the QoS capability is not satisfied based on the QoS capability and provides relay services to multiple Remote UEs at the same time.
  • the Remote UE that receives the resource limitation indication information sent by the Relay UE may be a Remote UE whose priority level meets the preset conditions, such as a Remote UE with a lower priority level.
  • the preset condition may be a priority threshold configured in advance
  • the Remote UE that receives the resource restriction indication information sent by the Relay UE may be a Remote UE with a priority level lower than the priority threshold.
  • the preset condition may be the Remote UE with the lowest priority level among the multiple Remote UEs determined by the Relay UE side; or, the X Remote UEs with the lowest priority level among the multiple Remote UEs determined by the Relay UE side. one.
  • step S52 the relay access network policy is adjusted based on the resource restriction indication information.
  • the Remote UE can adjust the relay access network policy of the Remote UE based on the received resource restriction indication information.
  • adjusting the relay access network policy may include: adjusting the QoS level of the remote terminal in response to the remote terminal supporting multiple QoS levels.
  • a Remote UE may be configured with multiple QoS levels.
  • the Remote UE receives the resource restriction indication information sent by the Relay UE, it means that the QoS requirements of the Remote UE cannot be satisfied by the Relay UE. Therefore, the Remote UE can adjust the QoS level, such as lowering the QoS level, that is, lowering the QoS requirements, so that the Relay UE can meet the QoS requirements of the Remote UE and complete the relay.
  • the QoS level can be divided into multiple levels according to the actual situation. For example, it can include 3 levels.
  • the first level is the highest level, that is, the QoS must strictly meet the set parameters;
  • the second level is the QoS that can be combined with It is not necessary to strictly meet the set parameters, but it still needs to meet certain conditions (that is, lowering the minimum requirement threshold of each QoS parameter);
  • the third level is QoS and does not need to strictly meet the set parameters, as long as the relay can be completed, Just establish a PDU session with UPF.
  • the above is only an example and describes a possible implementation, but does not limit the present disclosure in any way.
  • adjusting the relay access network policy may include: adjusting the relay terminal accessed by the remote terminal.
  • the Remote UE when the Remote UE receives the resource restriction indication information sent by the Relay UE, it means that the QoS requirements of the Remote UE cannot be satisfied by the Relay UE. Therefore, the Remote UE can adjust the access Relay UE, that is, the Remote UE chooses to use other Relay UEs that may meet the QoS requirements of the Remote UE to access the network.
  • the present disclosure adjusts the relay access network policy through the resource restriction indication information sent after the relay terminal capability detection, thereby achieving fair and effective QoS sharing for each remote terminal accessing the network through the same relay.
  • FIG 8 is a schematic diagram of a relay communication signaling process according to an exemplary embodiment. As shown in Figure 8, the relay communication signaling process may include the following steps:
  • step S61 Relay UE is authorized to serve as a relay and provide corresponding services.
  • step S62 the Remote UE is authorized to access the relay and provide corresponding services.
  • S61 and S62 are initial configuration steps, and there is no strict execution order. S61 and S62 only indicate the need to perform initial configuration authorization (Authorization) and provide (Provisioning) corresponding services for Remote UE and Relay UE in advance.
  • Authorization initial configuration authorization
  • Provisioning Provisioning
  • step S63 a PDU session (Session) is established between Relay UE and UPF.
  • S63 is an optional step. In some cases, it means that the Relay UE can establish a PDU session with the UPF in advance, so that it can be used when the Relay UE relays for the Remote UE.
  • Relay UE can establish a PDU session for any relay service node (Relay Service Code) it supports before establishing a connection with Remote UE.
  • relay service node Relay Service Code
  • step S64 the Remote UE executes the relay discovery procedure.
  • Remote UE in S64 needs to access the network at this time, but there is no network coverage around the Remote UE.
  • Remote UE can perform relay discovery procedures in order to detect Relay UE. As part of the discovery process, Remote UE can obtain information about the connection services provided by Relay UE.
  • step S65 the Remote UE sends a relay service request to the Relay UE and attempts to establish a connection.
  • the Remote UE selects the Relay UE discovered in S64 and attempts to establish a connection for unicast mode communication. For example, as described in clause 6.4.3.6 of TS 23.304, the Remote UE may provide PC5 QoS info to the Relay UE during connection establishment and, in some examples, may also provide PC5 QoS rules to the Relay UE.
  • step S66 Relay UE performs QoS capability detection.
  • the Relay UE can check whether it has the ability to provide relay services for these Remote UEs at the same time based on the QoS required by each Remote UE.
  • Relay UE For the IP PDU Session type (Type) and IP service on the PC5 reference point, the Relay UE needs to assign an IPv6 prefix or IPv4 address to the Remote UE.
  • step S67 the Relay UE sends resource restriction indication information to at least one Remote UE.
  • the Relay UE if the Relay UE cannot provide connections to these Remote UEs due to capacity limitations, the Relay UE will send resource limitation indication information to the Remote UEs with lower priority.
  • step S68 the Remote UE adjusts the relay access network policy according to the resource restriction indication information.
  • the Remote UE that receives the resource restriction indication information can reselect the Relay UE or adjust the QoS level.
  • step S69 Relay UE re-creates the PDU session.
  • Relay UE Before completing the establishment of the PC5 connection with the Remote UE, a new PDU Session establishment procedure can be initiated to the UPF to create a new PDU painting for corresponding relay.
  • the Remote UE adjusts the relay access network policy, it can resend the relay service request to the Relay UE and re-execute the above S65.
  • step S70 the Relay UE allocates an IP address/prefix to the Remote UE.
  • the Remote UE is assigned an IPv6 prefix at Layer-3 or IPv4 address. It can be understood that Layer-3 is the network layer.
  • the Remote UE may request the Relay UE to modify QoS. Therefore, the relay communication signaling process may also include the following steps:
  • step S7l the Remote UE initiates Layer-2 link modification indication information to the Relay UE.
  • the Remote UE can use the Layer-2 link modification procedure to provide new PC5 QoS rules (Rule) to the Relay UE.
  • Rule PC5 QoS rules
  • Layer-2 is the data link layer.
  • step S72 the Relay UE adjusts the PDU session according to the link modification indication information.
  • Relay UE can generate a packet filter (Packet Filter) used on the Uu interface based on the received PC5 QoS Rule, and can perform Remote UE request PDU Session Modification to establish a new QoS Flow or bind services to the existing QoS Flow.
  • Packet Filter Packet Filter
  • step S73 the Relay UE sends Remote UE reports of multiple Remote UEs to the SMF.
  • each Remote user (User) identity (Identity document, ID) identification, Remote UE Info and other messages may be included for the PDU Session related to the relay.
  • Remote User ID is the identity of the successfully connected Remote UE user (provided through User Info).
  • Remote UE info is used to assist in identifying Remote UE in 5GC.
  • SMF can store the Remote User ID and related Remote UE info in the SM context of the Relay UE for this PDU Session related to the relay.
  • the Relay UE can provide the corresponding Relay service for the Remote UE.
  • the relay terminal of the present disclosure passes the capability detection and performs relay services for multiple remote terminals based on the capability detection results, thereby achieving fair and effective QoS sharing for each remote terminal accessing the network through the same relay.
  • FIG. 9 is a schematic diagram of another relay communication signaling process according to an exemplary embodiment. As shown in Figure 9, the relay communication signaling process may include the following steps:
  • step S81 Relay UE is authorized to serve as a relay and provide corresponding services.
  • step S82 the Remote UE is authorized to access the relay and provide corresponding services.
  • step S83 the Relay UE can establish a PDU Session with the UPF.
  • step S84 the Remote UE executes the relay discovery procedure.
  • step S85 the Remote UE sends a relay service request to the Relay UE and attempts to establish a connection.
  • step S86 Relay UE performs QoS capability detection.
  • step S87 Relay UE re-creates the PDU session.
  • the capability of Relay UEs can provide connections for these Remote UEs.
  • the PDU session established in S83 can be used directly.
  • the Relay UE will complete the PC5 between it and the Remote UE.
  • a new PDU Session establishment procedure can be initiated to UPF to create a new PDU painting for corresponding relay.
  • step S88 the Relay UE allocates an IP address/prefix to the Remote UE.
  • step S89 the Remote UE initiates Layer-2 link modification indication information to the Relay UE.
  • step S90 the Relay UE adjusts the PDU session according to the link modification indication information.
  • step S91 the Relay UE sends Remote UE reports of multiple Remote UEs to the SMF.
  • the disclosed relay terminal passes the capability detection and performs relay services for multiple remote terminals based on the capability detection results, thereby achieving fair and effective QoS sharing for each remote terminal accessing the network through the same relay.
  • embodiments of the present disclosure also provide a relay communication device.
  • the relay communication device provided by the embodiments of the present disclosure includes hardware structures and/or software modules corresponding to each function.
  • the embodiments of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is performed by hardware or computer software driving the hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to go beyond the scope of the technical solutions of the embodiments of the present disclosure.
  • FIG 10 is a schematic diagram of a relay communication device according to an exemplary embodiment.
  • the device 100 may be a relay terminal, that is, a Relay UE.
  • the device 100 may include: a processing module 101, configured to provide services to the relay terminal in response to receiving relay service requests sent by multiple remote terminals. Quality QoS capability detection; the processing module 101 is also used to relay access to the network for multiple remote terminals based on the capability detection results.
  • the disclosed relay terminal passes the capability detection and performs relay services for multiple remote terminals based on the capability detection results, thereby achieving fair and effective QoS sharing for each remote terminal accessing the network through the same relay.
  • the apparatus 100 further includes: a sending module 102, configured to provide relay services to multiple remote terminals simultaneously in response to a capability detection result indicating that the QoS capability is not satisfied, and to provide relay services to at least one of the multiple remote terminals.
  • the remote terminal sends resource limitation indication information, and the resource limitation indication information is used to instruct the remote terminal to adjust the relay access network policy.
  • This disclosure can instruct the Remote UE to adjust the corresponding relay access network policy through the resource restriction indication information, thereby achieving fair and effective QoS sharing for each remote terminal accessing the network through the same relay.
  • the sending module 102 is further configured to: send a resource-limited message to at least one remote terminal whose priority level meets a preset condition according to the priority level corresponding to each remote terminal among the plurality of remote terminals. Instructions.
  • This disclosure can ensure that the Relay UE gives priority to provide relay services to important Remote UEs by sending resource restriction indication information to at least one Remote UE whose priority level meets the preset conditions.
  • the processing module 101 is further configured to: in response to meeting the conditions for creating a packet data unit PDU session, re-create a PDU session.
  • the device 100 further includes: a receiving module 103; the conditions for creating a PDU session include at least one of the following: the packet data unit PDU session created by the relay terminal does not meet the requirements for multiple remote terminals to access the network. ; The receiving module 103 receives the instruction information to create a new PDU session.
  • the processing module 101 is further configured to: in response to the capability detection result being that the QoS capability satisfies the QoS capability requirement, simultaneously provide relay services for multiple remote terminals, and perform relaying for multiple remote terminals, so that multiple The remote terminal accesses the network.
  • FIG 11 is a schematic diagram of a relay communication device according to an exemplary embodiment.
  • the device 200 may be a remote terminal, that is, a Remote UE.
  • the device 200 may include: a receiving module 201 for receiving resource limited indication information sent by the relay terminal.
  • the resource limited indication information is based on The quality of service QoS capability detection result is sent when the QoS capability is not sufficient to provide relay services for multiple remote terminals at the same time; the processing module 202 is used to adjust the relay access network policy based on the resource limitation indication information.
  • the present disclosure adjusts the relay access network policy through the resource restriction indication information sent after the relay terminal capability detection, thereby achieving fair and effective QoS sharing for each remote terminal accessing the network through the same relay.
  • the processing module 202 is further configured to: adjust the QoS level of the remote terminal in response to the remote terminal supporting multiple QoS levels.
  • This disclosure adjusts the corresponding QoS level through Remote UE, thereby achieving fair and effective QoS sharing for each remote terminal accessing the network through the same relay.
  • the processing module 202 is also used to adjust the relay terminal accessed by the remote terminal.
  • This disclosure adjusts the accessed Relay UE through the Remote UE, thereby achieving fair and effective QoS sharing for each remote terminal accessing the network through the same relay.
  • Figure 12 is a schematic diagram of a relay communication device 300 according to an exemplary embodiment.
  • the device 300 may be provided as a Relay UE, or as a Remote UE.
  • the device 300 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, a RedCap terminal, and other devices.
  • device 300 may include one or more of the following components: processing component 302, memory 304, power component 306, multimedia component 308, audio component 310, input/output (I/O) interface 312, sensor component 314, and Communication component 316.
  • Processing component 302 generally controls the overall operations of device 300, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 302 may include one or more processors 320 to execute instructions to complete all or part of the steps of the above method.
  • processing component 302 may include one or more modules that facilitate interaction between processing component 302 and other components.
  • processing component 302 may include a multimedia module to facilitate interaction between multimedia component 308 and processing component 302.
  • Memory 304 is configured to store various types of data to support operations at device 300 . Examples of such data include instructions for any application or method operating on device 300, contact data, phonebook data, messages, pictures, videos, etc.
  • Memory 304 may be implemented by any type of volatile or non-volatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable and programmable read-only memory (EEPROM).
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EEPROM erasable and programmable read-only memory
  • EPROM programmable read-only memory
  • ROM read-only memory
  • magnetic memory flash memory, magnetic or optical disk.
  • Power component 306 provides power to the various components of device 300 .
  • Power components 306 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to device 300 .
  • Multimedia component 308 includes a screen that provides an output interface between the device 300 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide action.
  • multimedia component 308 includes a front-facing camera and/or a rear-facing camera.
  • the front camera and/or the rear camera may receive external multimedia data.
  • Each front-facing camera and rear-facing camera can be a fixed optical lens system or have a focal length and optical zoom capabilities.
  • Audio component 310 is configured to output and/or input audio signals.
  • audio component 310 includes a microphone (MIC) configured to receive external audio signals when device 300 is in operating modes, such as call mode, recording mode, and speech recognition mode. The received audio signals may be further stored in memory 304 or sent via communication component 316 .
  • audio component 310 also includes a speaker for outputting audio signals.
  • the I/O interface 312 provides an interface between the processing component 302 and a peripheral interface module, which may be a keyboard, a click wheel, a button, etc. These buttons may include, but are not limited to: Home button, Volume buttons, Start button, and Lock button.
  • Sensor component 314 includes one or more sensors that provide various aspects of status assessment for device 300 .
  • the sensor component 314 can detect the open/closed state of the device 300, the relative positioning of components, such as the display and keypad of the device 300, and the sensor component 314 can also detect the position change of the device 300 or a component of the device 300. , the presence or absence of user contact with device 300 , device 300 orientation or acceleration/deceleration and temperature changes of device 300 .
  • Sensor assembly 314 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact.
  • Sensor assembly 314 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 314 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 316 is configured to facilitate wired or wireless communications between device 300 and other devices.
  • Device 300 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 316 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 316 also includes a near field communication (NFC) module to facilitate short-range communications.
  • NFC near field communication
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • device 300 may be configured by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable Gate array (FPGA), controller, microcontroller, microprocessor or other electronic components are implemented for executing the above method.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable Gate array
  • controller microcontroller, microprocessor or other electronic components are implemented for executing the above method.
  • a non-transitory computer-readable storage medium including instructions such as a memory 304 including instructions, which are executable by the processor 320 of the device 300 to complete the above method is also provided.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
  • This disclosed Relay UE will perform a capability check when it is selected by multiple Remote UEs. When multiple Remote UEs are identified and the Relay UE cannot serve multiple Remote UEs at the same time due to capacity limitations, the Relay UE will send a Limited Resource Indication to the Remote UE with a lower QoS priority. If the Remote UE supports multiple QoS levels, the Remote UE can reselect the Relay UE or lower the QoS level. This can achieve fair and effective QoS sharing for remote terminals accessing the network through the same relay.
  • “plurality” in this disclosure refers to two or more, and other quantifiers are similar.
  • “And/or” describes the relationship between related objects, indicating that there can be three relationships.
  • a and/or B can mean: A exists alone, A and B exist simultaneously, and B exists alone.
  • the character “/” generally indicates that the related objects are in an “or” relationship.
  • the singular forms “a”, “the” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise.
  • first, second, etc. are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other and do not imply a specific order or importance. In fact, expressions such as “first” and “second” can be used interchangeably.
  • first information may also be called second information, and similarly, the second information may also be called first information.

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Abstract

本公开是关于一种中继通信方法、装置、设备及存储介质，方法包括：响应于接收到多个远端终端发送的中继服务请求，对中继终端进行服务质量QoS能力检测。基于能力检测结果，对多个远端终端进行中继接入网络。本公开中继终端通过能力检测，并基于能力检测结果执行对多个远端终端的中继服务，从而可以实现通过同一中继接入网络的各远端终端实现公平且有效的QoS共享。

Description

一种中继通信方法、装置、设备及存储介质 技术领域
本公开涉及通信技术领域，尤其涉及一种中继通信方法、装置、设备及存储介质。
背景技术
邻近业务(Proximity based Services，ProSe)用户设备到网络中继(User Equipment-to-Network Relay)可以提供中继功能，以支持用于第五代无线通信系统(The 5th Generation Wireless Communication System，5G)ProSe远端(Remote)用户设备(User Equipment，UE)的网络连接。该ProSe UE-to-Network Relay可以用于公共安全服务和商业服务，例如包括互动服务。其中，UE-to-Network Relay也称为中继UE(Relay UE)。
ProSe UE-to-Network Relay可以支持以下功能以实现与网络的连接：例如在现行规范中所定义的5G ProSe UE-to-Network Relay发现(Discovery)服务，可以允许ProSe UE-to-Network Relay被5G ProSe Remote UE发现；将ProSe UE-to-Network Relay作为UE接入5G系统(5G System，5GS)。中继5G ProSe Remote UE与网络之间，并支持互联网协议(Intemet Protocol，IP)、以太网或非结构化业务类型的单播流量，例如包括上行链路和下行链路。
但是当多个Remote UE选中同一个Relay UE以进行网络连接时，如何为多个Remote UE提供中继是目前亟需解决的问题。
发明内容
为克服相关技术中存在的问题，本公开提供了一种中继通信方法、装置、设备及存储介质。
根据本公开实施例的第一方面，提供了一种中继通信方法，该方法应用于中继终端，方法可以包括：响应于接收到多个远端终端发送的中继服务请求，对中继终端进行服务质量QoS能力检测。基于能力检测结果，对多个远端终端进行中继接入网络。本公开中继终端通过能力检测，并基于能力检测结果执行对多个远端终端的中继服务，从而可以实现通过同一中继接入网络的各远端终端实现公平且有效的QoS共享。
在一种可能的实施方式中，基于能力检测结果，对多个远端终端进行中继接入网络，可以包括：响应于能力检测结果为QoS能力不满足同时为多个远端终端提供中继服务，向多个远端终端中的至少一个远端终端发送资源受限指示信息，资源受限指示信息用于指示 远端终端调整中继接入网络策略。
在一种可能的实施方式中，向多个远端终端中的至少一个远端终端发送资源受限指示信息，可以包括：根据多个远端终端中各远端终端对应的优先级等级，向优先级等级满足预设条件的至少一个远端终端，发送资源受限指示信息。
在一种可能的实施方式中，方法还可以包括：响应于满足创建分组数据单元PDU会话的条件，重新创建PDU会话。
在一种可能的实施方式中，满足创建PDU会话的条件包括以下至少之一：中继终端已创建的分组数据单元PDU会话不满足使多个远端终端接入网络；接收到创建新的PDU会话的指示信息。
在一种可能的实施方式中，基于能力检测结果，对多个远端终端进行中继接入网络，包括：响应于能力检测结果为QoS能力满足同时为多个远端终端提供中继服务，执行对多个远端终端进行中继，以使多个远端终端接入网络。
根据本公开实施例的第二方面，提供了一种中继通信方法，该方法应用于远端终端，方法可以包括：接收中继终端发送的资源受限指示信息，资源受限指示信息为中继终端基于服务质量QoS能力检测结果，为QoS能力不满足同时为多个远端终端提供中继服务时发送的；基于资源受限指示信息调整中继接入网络策略。本公开通过中继终端能力检测后发送的资源受限指示信息调整中继接入网络策略，从而实现通过同一中继接入网络的各远端终端实现公平且有效的QoS共享。
在一种可能的实施方式中，调整中继接入网络策略，包括：响应于远端终端支持多个QoS等级，调整远端终端的QoS等级。
在一种可能的实施方式中，调整中继接入网络策略，包括：调整远端终端接入的中继终端。
根据本公开实施例的第三方面，提供了一种中继通信装置，装置为中继终端，装置包括：处理模块，用于响应于接收到多个远端终端发送的中继服务请求，对中继终端进行服务质量QoS能力检测；处理模块还用于，基于能力检测结果，对多个远端终端进行中继接入网络。本公开中继终端通过能力检测，并基于能力检测结果执行对多个远端终端的中继服务，从而可以实现通过同一中继接入网络的各远端终端实现公平且有效的QoS共享。
在一种可能的实施方式中，装置还包括：发送模块，用于响应于能力检测结果为QoS能力不满足同时为多个远端终端提供中继服务，向多个远端终端中的至少一个远端终端发送资源受限指示信息，资源受限指示信息用于指示远端终端调整中继接入网络策略。
在一种可能的实施方式中，发送模块还用于：根据多个远端终端中各远端终端对应的 优先级等级，向优先级等级满足预设条件的至少一个远端终端，发送资源受限指示信息。
在一种可能的实施方式中，处理模块还用于：响应于满足创建分组数据单元PDU会话的条件，重新创建PDU会话。
在一种可能的实施方式中，装置还包括：接收模块；满足创建PDU会话的条件包括以下至少之一：中继终端已创建的分组数据单元PDU会话不满足使多个远端终端接入网络；接收模块接收到创建新的PDU会话的指示信息。
在一种可能的实施方式中，处理模块还用于：响应于能力检测结果为QoS能力满足同时为多个远端终端提供中继服务，执行对多个远端终端进行中继，以使多个远端终端接入网络。
根据本公开实施例的第四方面，提供了一种中继通信装置，装置为远端终端，装置包括：接收模块，用于接收中继终端发送的资源受限指示信息，资源受限指示信息为中继终端基于服务质量QoS能力检测结果，为QoS能力不满足同时为多个远端终端提供中继服务时发送的；处理模块，用于基于资源受限指示信息调整中继接入网络策略。本公开通过中继终端能力检测后发送的资源受限指示信息调整中继接入网络策略，从而实现通过同一中继接入网络的各远端终端实现公平且有效的QoS共享。
在一种可能的实施方式中，处理模块还用于：响应于远端终端支持多个QoS等级，调整远端终端的QoS等级。
在一种可能的实施方式中，处理模块还用于：调整远端终端接入的中继终端。
根据本公开实施例的第五方面，提供了一种中继通信设备，包括：处理器；用于存储处理器可执行指令的存储器；其中，处理器被配置为执行第一方面或第一方面任意一种实施方式中所述的方法。
根据本公开实施例的第六方面，提供了一种中继通信设备，包括：处理器；用于存储处理器可执行指令的存储器；其中，处理器被配置为执行第二方面或第二方面任意一种实施方式中所述的方法。
根据本公开实施例的第七方面，提供了一种非临时性计算机可读存储介质，当存储介质中的指令由中继终端的处理器执行时，使得中继终端能够执行第一方面或第一方面任意一种实施方式中所述的方法。
根据本公开实施例的第八方面，提供了一种非临时性计算机可读存储介质，当存储介质中的指令由远端终端的处理器执行时，使得远端终端能够执行第二方面或第二方面任意一种实施方式中所述的方法。
本公开的实施例提供的技术方案可以包括以下有益效果：中继终端通过能力检测，并 基于能力检测结果执行对多个远端终端的中继服务，从而可以实现通过同一中继接入网络的各远端终端实现公平且有效的QoS共享。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种中继通信场景示意图。
图2是根据一示例性实施例示出的一种端到端QoS配置示意图。
图3是根据一示例性实施例示出的一种中继通信方法流程图。
图4是根据一示例性实施例示出的另一种中继通信方法流程图。
图5是根据一示例性实施例示出的又一种中继通信方法流程图。
图6是根据一示例性实施例示出的再一种中继通信方法流程图。
图7是根据一示例性实施例示出的另一种中继通信方法流程图。
图8是根据一示例性实施例示出的一种中继通信信令流程示意图。
图9是根据一示例性实施例示出的另一种中继通信信令流程示意图。
图10是根据一示例性实施例示出的一种中继通信装置示意图。
图11是根据一示例性实施例示出的另一种中继通信装置示意图。
图12是根据一示例性实施例示出的一种中继通信设备示意图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。
本公开所涉及的方法可以应用于图1所示的中继通信场景中，该场景可以包括远端终端(即5G ProSe Remote UE或称ProSe Remote UE、Remote UE、远端UE等)、Relay UE、基站、核心网和数据网络(Data Network)。其中，基站可以是下一代无线接入网(Next Generation-Radio Access Network，NG-RAN)，核心网可以是5G核心网(5G Core，5GC)，NG-RAN和5GC可以统称为5GS。
正如图1所示出的，Relay UE可以使用Uu接口与NG-RAN进行中继以实现信息交互， 以及可以使用PC5接口与Remote UE进行中继以实现信息交互。对于包含NG-RAN和5GC的5GS可以使用N6接口与数据网络实现数据通信。
可以理解的是，图1所示的中继通信场景仅是进行示意性说明，该中继通信系统中还可以包括其它网络设备或终端，例如还可以包括无线回传设备等，在图1中未画出。本公开实施例对该中继通信场景中包括的各个设备数量和终端数量不做限定。
进一步可以理解的是，本公开实施例的中继通信场景包含了提供无线通信功能的网络。该无线通信功能的网络可以采用不同的通信技术实现，例如码分多址(Code Division Multiple Access，CDMA)、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency-Division Multiple Access，OFDMA)、单载波频分多址(Single Carrier FDMA，SC-FDMA)、载波侦听多路访问/冲突避免(Carrier Sense Multiple Access with Collision Avoidance)。根据不同网络的容量、速率、时延等因素可以将网络分为2G(英文：Generation)网络、3G网络、4G网络或者未来演进网络，如5G网络，5G网络也可称为是新无线网络(New Radio，NR)。为了方便描述，本公开有时会将无线通信网络简称为网络。
进一步的，本公开中涉及的基站也可以称为无线接入网络设备。该无线接入网络设备还可以是：演进型基站(evolved Node B，eNB)、家庭基站、无线保真(Wireless Fidelity，WIFI)系统中的接入点(Access Point，AP)、无线回传节点或者传输点(Transmission Point，TP)等，还可以为NR系统中的gNB，或者，还可以是构成基站的组件或一部分设备等。当为车联网(V2X)通信系统时，网络设备还可以是车载设备。应理解，本公开的实施例中，对网络设备所采用的具体技术和具体设备形态不做限定。
进一步的，本公开中涉及的远端终端或中继终端，也可以称为终端设备、移动台(Mobile Station，MS)、移动终端(Mobile Terminal，MT)等，是一种向用户提供语音和/或数据连通性的设备，例如，终端可以是具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例为：智能手机(Mobile Phone)、口袋计算机(Pocket Personal Computer，PPC)、掌上电脑、个人数字助理(Personal Digital Assistant，PDA)、笔记本电脑、平板电脑、可穿戴设备、或者车载设备等。此外，当为车联网(V2X)通信系统时，终端设备还可以是车载设备。应理解，本公开实施例对终端所采用的具体技术和具体设备形态不做限定。
当然，本公开所涉及的中继终端应为具有实现中继功能的终端设备。
继续回到图1，当Remote UE需要与用户面功能(User Plane Function，UPF)之间通信连接时，可以通过Relay UE进行中继。在进行中继时，Remote UE与UPF之间中继服 务的服务质量(Quality of Service，QoS)要求，即端到端QoS(End-to-End QoS)可以通过Remote UE与Relay UE之间的PC5接口的相应QoS控制(如PC5 QoS控制)，以及Relay UE与UPF之间建立的分组数据单元(Packet Data Unit，PDU)会话的QoS控制(即，Uu QoS控制)来满足。如图2所示出的，例如在技术规范(Technical Specification，TS)23.287的第5.4条中所规定的，PC5 QoS可以用PC5 QoS规则和PC5 QoS参数来控制。其中，PC5 QoS参数例如可以包括PC5 QoS指示符(PC5 QoS indicator，PQI)、保证流比特速率(Guaranteed Flow Bit Rate，GFBR)、最大流比特速率(Maximum Flow Bit Rate，MFBR)、PC5链路聚合最大比特速率(PC5 link Aggregated Maximum Bit Rate，PC5 LINK-AMBR)、范围(Range)等。又例如，在TS 23.501的第5.7条中所规定的，对在Relay UE与UPF之间建立的PDU会话的QoS(即Uu QoS)，可以用QoS规则和5G QoS参数来控制。其中，5G QoS参数可以例如5G QoS指示符(5G QoS indicator，5QI)、GFBR、MFBR等。
可以理解的是，只有当QoS要求被适当地转换并且分别在PC5 QoS和Uu QoS这两个分支上被满足时，才可以满足End-to-End QoS。
在相关技术中，例如在TS 23.304的第5.1.4.1条中所规定的，QoS映射可以通过使用邻近业务策略(Prose Policy)的策略控制功能(Policy Control Function，PCF)来被预先配置或者提供给Relay UE。QoS映射中可以包括一项或多项映射条目，例如可以包括5QI和PQI中的映射条目。
对于由网络发起建立的QoS流(Flow)，网络测的会话管理功能(Session Management Function，SMF)可以根据策略与计费控制(Policy and Charging Control，PCC)规则或其本地配置使用PDU会话(Session)建立(Establishment)/修改(Modification)程序向Relay UE生成QoS规则和QoS Flow级别QoS参数(例如5QI、GFBR、MFBR等)以及信号。
对于用于中继的PDU会话，SMF总是在建立QoS Flow时向Relay UE提供QoS Flow级别QoS参数。然后，Relay UE基于QoS映射确定PQI，并通过确定的PQI决定用于相应PC5 QoS Flow的PC5 QoS参数，并且将PC5保障比特速率(Guaranteed Bit Rate，GBR)QoS流的GFBR和MFBR分别设置为GBR QoS流的GFBR和MFBR值。
对于由Remote UE发起的PC5 QoS Flows，Remote UE可以向Relay UE提供QoS信息(Info)以实现PC5QoS Flows的建立或修改。Relay UE接收到的QoS Info中包含的PC5 QoS参数，可以解释为Relay UE需要满足的QoS要求，即Remote UE与UPF之间的业务传输的End-to-End QoS要求。其中，PC5 QoS参数例如可以包括PQI，以及有条件的其它参数，例如MFBR/GFBR等参数。
如果End-to-End QoS要求可以被QoS映射中的映射条目支持，则Relay UE可以使用 映射条目中的5QI以实现控制Uu QoS，以及Relay UE可以使用映射条目中的PQI以实现控制PC5 QoS。如果End-to-End QoS要求不能被QoS映射中的任何映射条目支持，则Relay UE根据其实现决定用于Uu QoS控制的5QI和用于PC5 QoS控制的PQI。Relay UE向Remote UE提供QoS Info(例如可以包括由Relay UE选择的PQI值)作为接受(Accept)消息的一部分。
然而，Remote UE与UPF之间的End-to-End QoS建立时，忽略了当大量Remote UE通过同一个Relay UE进行中继连接的情况下，Relay UE能力受限的问题。例如，数据传输速率限制等等。即如何在中继具有有限的能力时，管理中继后的大规模Remote UE的QoS流，成为了亟需解决的问题。
因此，本公开提供了一种中继通信方法，中继终端通过能力检测，并基于能力检测结果执行对多个远端终端的中继服务，从而可以实现通过同一中继接入网络的各远端终端实现公平且有效的QoS共享。
图3是根据一示例性实施例示出的一种中继通信方法的流程图，如图3所示，一种中继通信方法，该中继通信方法可以用于中继终端，例如图1、图2中的Relay UE，该方法可以包括以下步骤：
在步骤S11中，响应于接收到多个远端终端发送的中继服务请求，对中继终端进行服务质量QoS能力检测。
在一些例子中，当Remote UE需要访问网络但是其周围并没有网络覆盖时，Remote UE可以通过发现中继并于中继建立连接，从而实现Remote UE访问网络。因此，Remote UE可以执行中继发现程序，从而检测到Relay UE。并与Relay UE建立连接。
当Relay UE同时被多个Remote UE选中来提供网络连接时，该Relay UE可以进行QoS能力检测，以确定该Relay UE是否可以满足多个Remote UE所要求的QoS。
在步骤S12中，基于能力检测结果，对多个远端终端进行中继接入网络。
在一些例子中，Relay UE可以基于S11中的QoS能力检测结果，对多个Remote UE进行相应的中继，以接入网络。
本公开中继终端通过能力检测，并基于能力检测结果执行对多个远端终端的中继服务，从而可以实现通过同一中继接入网络的各远端终端实现公平且有效的QoS共享。
图4是根据一示例性实施例示出的另一种中继通信方法的流程图，如图4所示，一种中继通信方法，该方法基于能力检测结果，对多个远端终端进行中继接入网络，可以包括以下步骤：
在步骤S21中，响应于能力检测结果为QoS能力不满足同时为多个远端终端提供中继 服务，向多个远端终端中的至少一个远端终端发送资源受限指示信息，资源受限指示信息用于指示远端终端调整中继接入网络策略。
在一些例子中，若Relay UE由于能力限制，无法同时为多个Remote UE提供中继服务，Relay UE可以向多个Remote UE中的至少一个Remote UE发送资源受限指示(Limited Resource Indication)信息。该资源受限指示信息可以用于指示相应的Remote UE调整中继接入网络策略。
本公开实施例提供的通信方法中，向多个远端终端中的至少一个远端终端发送资源受限指示信息，可以包括：根据多个远端终端中各远端终端对应的优先级等级，向优先级等级满足预设条件的至少一个远端终端，发送资源受限指示信息。
在一些例子中，不同的Remote UE可以被预先配置不同的优先级等级。根据预先配置的预设条件，可以向优先级等级满足预设条件的至少一个Remote UE，发送资源受限指示信息。在又一些例子中，预先配置的优先级等级还可以参考PC5 QoS信息中PQI中的优先级(Priority level)，并将PQI中的Priority level作为相应Remote UE的优先级。
在一些例子中，预设条件例如可以是预先配置有优先级阈值，Relay UE可以向优先级等级低于该优先级阈值的至少一个Remote UE，发送资源受限指示信息。当然，在另一些例子中，预设条件可以是向优先级等级较低的至少一个Remote UE，发送资源受限指示信息。例如，是向优先级等级最低一个Remote UE，发送资源受限指示信息；或是，根据优先级等级对多个Remote UE由高到低或由低到高进行排序，并向排序结果优先级等级最低的X个Remote UE，发送资源受限指示信息。可以理解，X为正整数，其具体数值可以根据实际情况进行任意设定，本公开不做限定。
图5是根据一示例性实施例示出的又一种中继通信方法的流程图，如图5所示，一种中继通信方法，该方法还可以包括以下步骤：
在步骤S31中，响应于满足创建分组数据单元PDU会话的条件，重新创建PDU会话。
在一些例子中，若Relay UE可以支持Remote UE创建PDU会话的条件，则可以为相应的Remote UE重新创建PDU会话。
本公开实施例提供的通信方法中，满足创建PDU会话的条件包括以下至少之一：中继终端已创建的分组数据单元PDU会话不满足使多个远端终端接入网络；接收到创建新的PDU会话的指示信息。
在一些例子中，Relay UE可以预先创建有PDU会话，当预先创建的PDU会话无法满足当前多个Remote UE接入网络时，可以针对不满足的Remote UE重新创建PDU会话。当然，在另一些例子中，还可以是Relay UE预先并没有创建PDU会话，则当前多个Remote  UE的中继服务请求中可以包括创建新的PDU会话的指示信息，Relay UE可以根据创建新的PDU会话的指示信息为当前多个Remote UE重新创建PDU会话。
当然，在另一些例子中，若Relay UE向部分Remote UE发送了资源受限指示信息，则Relay UE可以继续为多个Remote UE中未发送资源受限指示信息的Remote UE提供相应的中继服务。例如可以包括为未发送资源受限指示信息的Remote UE创建新的PDU会话。
图6是根据一示例性实施例示出的再一种中继通信方法的流程图，如图6所示，一种中继通信方法，该方法基于能力检测结果，对多个远端终端进行中继接入网络，可以包括以下步骤：
在步骤S41中，响应于能力检测结果为QoS能力满足同时为多个远端终端提供中继服务，执行对多个远端终端进行中继，以使多个远端终端接入网络。
在一些例子中，若Relay UE的能力可以满足多个Remote UE的所有中继服务，即满足多个Remote UE的所要求的QoS。Relay UE可以执行对多个Remote UE进行相应的中继服务，以使多个Remote UE可以接入网络。
在一些例子中，Relay UE可以预先创建有PDU会话，并使用预先创建的PDU会话进行多个Remote UE的中继。当然，在另一些例子中，Relay UE也可以为多个Remote UE创建新的PDU会话，以进行多个Remote UE的中继。
本公开Relay UE可以通过能力检测，并基于能力检测结果执行对多个Remote UE的中继服务，从而可以实现通过同一中继接入网络的各Remote UE实现公平且有效的QoS共享。
图7是根据一示例性实施例示出的一种中继通信方法的流程图，如图7所示，一种中继通信方法，该中继通信方法可以用于中继终端，例如图1、图2中的Remote UE，该方法可以包括以下步骤：
在步骤S51中，接收中继终端发送的资源受限指示信息，资源受限指示信息为中继终端基于服务质量QoS能力检测结果为QoS能力不满足同时为多个远端终端提供中继服务时发送的。
在一些例子中，Remote UE可以接收到Relay UE发送的资源受限指示信息。该资源受限指示信息为Relay UE基于QoS能力检测结果为QoS能力不满足同时为多个Remote UE提供中继服务时发送的。
在一些例子中，可以理解，接收到Relay UE发送的资源受限指示信息的Remote UE可以是优先级等级满足预设条件的Remote UE，例如优先级等级较低的Remote UE。例如， Remote UE可以预先配置有相应的优先级等级。预设条件例如可以是预先配置有优先级阈值，接收到Relay UE发送的资源受限指示信息的Remote UE可以是优先级等级低于该优先级阈值的Remote UE。又例如，预设条件可以是Relay UE侧确定的多个Remote UE中优先级等级最低的Remote UE；或是，Relay UE侧确定的多个Remote UE中优先级等级最低的X个Remote UE中的一个。
在步骤S52中，基于资源受限指示信息调整中继接入网络策略。
Remote UE可以基于接收到的资源受限指示信息调整该Remote UE的中继接入网络策略。
本公开实施例提供的通信方法中，调整中继接入网络策略，可以包括：响应于远端终端支持多个QoS等级，调整远端终端的QoS等级。
在一些例子中，Remote UE可以被配置有多个QoS等级。当Remote UE接收到Relay UE发送的资源受限指示信息，则意味着该Remote UE的QoS要求无法被Relay UE所满足。因此，Remote UE可以调整QoS等级，例如降低QoS等级，即降低QoS要求，从而便于Relay UE满足该Remote UE的QoS要求，从而完成中继。
在一些例子中，QoS等级可以根据实际情况划分为多个等级，例如可以包括3个等级，第一个等级为最高等级，即QoS必须严格满足设定的参数；第二个等级为QoS可与无须严格满足设定的参数，但仍然需要满足一定的条件(即降低QoS各参数的最低要求门限)；第三个等级为QoS可与无须严格满足设定的参数，只需能完成中继，与UPF建立PDU会话即可。当然可以理解的是，上述仅为一种示例，描述了一种可能的实现方式，但并不对本公开具有任何限定。
本公开实施例提供的通信方法中，调整中继接入网络策略，可以包括：调整远端终端接入的中继终端。
可以理解，当Remote UE接收到Relay UE发送的资源受限指示信息，则意味着该Remote UE的QoS要求无法被Relay UE所满足。因此，该Remote UE可与调整接入的Relay UE，即Remote UE选择采用其它的可能满足该Remote UE的QoS要求的Relay UE接入网络。
应当理解，Remote UE与Relay UE的部分执行方式相类似，因此，相应描述具体可以参考网络设备中相应的部分，本公开在此不再赘述。
本公开通过中继终端能力检测后发送的资源受限指示信息调整中继接入网络策略，从而实现通过同一中继接入网络的各远端终端实现公平且有效的QoS共享。
图8是根据一示例性实施例示出的一种中继通信信令流程示意图，如图8所示，该中 继通信信令流程可以包括以下步骤：
在步骤S61中，Relay UE被授权作为中继，并提供相应服务。
在步骤S62中，Remote UE被授权允许接入中继，并提供相应服务
可以理解的是，S61和S62作为初始配置步骤，并无严格执行顺序。S61和S62仅表示需要预先为Remote UE和Relay UE进行初始配置授权(Authorization)以及提供(Provisioning)相应的服务。
在步骤S63中，Relay UE与UPF之间建立PDU会话(Session)。
在一些例子中，S63作为可选的步骤，在一些情况下，表示Relay UE可以提前与UPF建立PDU会话，以便后续Relay UE为Remote UE进行中继时使用。
可以理解的是，Relay UE可以在与Remote UE建立连接之前为其支持的任何中继服务节点(Relay Service Code)建立PDU会话。
在步骤S64中，Remote UE执行中继发现程序。
可以理解，S64中Remote UE此时需要接入网络，但是Remote UE周围并无网络覆盖。Remote UE则可以执行中继发现程序，以便检测到Relay UE。作为发现程序的一部分，Remote UE可以获取到关于Relay UE提供的连接服务。
在步骤S65中，Remote UE向Relay UE发送中继服务请求，并尝试建立连接。
在一些例子中，Remote UE选择S64中发现的Relay UE，并尝试建立用于单播模式通信的连接。例如，在TS 23.304的第6.4.3.6条中描述的，Remote UE可以在连接建立期间向Relay UE提供PC5 QoS info，在一些例子中，还可以向Relay UE提供PC5 QoS规则。
在步骤S66中，Relay UE进行QoS能力检测。
当多个Remote UE选择了同一个Relay UE时，该Relay UE可以根据各Remote UE要求的QoS，检查其是否有能力同时为这些Remote UE进行中继服务。
可以理解的是，能力限制可能是由Relay UE的硬件部署造成的。对于PC5参考点上的IP PDU Session类型(Type)和IP业务，Relay UE需要为Remote UE分配IPv6前缀或IPv4地址。
在步骤S67中，Relay UE向至少一个Remote UE发送资源受限指示信息。
在一些例子中，如果Relay UE由于能力限制不能为这些Remote UE提供连接，则Relay UE将向优先级较低的Remote UE发送资源受限指示信息。
在步骤S68中，Remote UE根据资源受限指示信息调整中继接入网络策略。
在一些例子中，如果Remote UE支持多(Multiple)QoS等级(Class)，则接收到资源受限指示信息的Remote UE可以重新选择Relay UE或调整QoS等级。
在步骤S69中，Relay UE重新创建PDU会话。
在一些例子中，如果没有执行S63，即没有与Relay UE相关的PDU Session，或者S63中的PDU Session不满足当前多个Remote UE的要求，又或者需要新的PDU Session进行中继时，Relay UE在完成与Remote UE之间PC5连接建立之前，可以向UPF发起新的PDU Session建立程序，以创建新的PDU绘画进行相应中继。
可以理解的是，当Remote UE调整中继接入网策略后，可以向Relay UE重新发送中继服务请求，并重新执行上述S65。
在步骤S70中，Relay UE为Remote UE分配IP地址/前缀。
在一些例子中，可以参考TS 23.304的第5.5.1.3条中所定义的，对于PC5参考点上的IP PDU Session Type和IP业务，为Remote UE在第三层(Layer-3)分配IPv6前缀或IPv4地址。可以理解的是，Layer-3为网络层。
在一些情况下，Remote UE可以向Relay UE提出修改QoS要求，因此，该中继通信信令流程还可以包括以下步骤：
在步骤S7l中，Remote UE向Relay UE发起第二层(Layer-2)链路修改指示信息。
在一些例子中，Remote UE可以使用Layer-2链路修改程序向Relay UE提供新的PC5 QoS规则(Rule)。具体可以参考TS 23.304的第6.4.3.4条中所规定的，本公开不做限定。可以理解的是，Layer-2为数据链路层。
在步骤S72中，Relay UE根据链路修改指示信息调整PDU会话。
在一些例子中，Relay UE可以根据接收到的PC5 QoS Rule生成在Uu接口上使用的包过滤器(Packet Filter)，并且可以执行Remote UE要求PDU Session Modification以建立新的QoS Flow或将业务绑定到现有的QoS Flow。
在步骤S73中，Relay UE向SMF发送多个Remote UE的Remote UE报告。
例如，可以包括各Remote用户(User)身份(Identity document，ID)标识、Remote UE Info等消息，以用于与中继相关的PDU Session。其中，Remote User ID是成功连接的Remote UE用户的身份(通过User Info提供)。Remote UE info用于辅助在5GC中识别Remote UE。
SMF可以将Remote User ID和相关的Remote UE info存储在Relay UE的SM上下文中，用于与中继相关的此PDU Session。
在一些例子中，当上述步骤部分或全部执行完毕后，Relay UE则可以为Remote UE提供相应的Relay业务。
本公开中继终端通过能力检测，并基于能力检测结果执行对多个远端终端的中继服 务，从而可以实现通过同一中继接入网络的各远端终端实现公平且有效的QoS共享。
图9是根据一示例性实施例示出的另一种中继通信信令流程示意图，如图9所示，该中继通信信令流程可以包括以下步骤：
在步骤S81中，Relay UE被授权作为中继，并提供相应服务。
在步骤S82中，Remote UE被授权允许接入中继，并提供相应服务
在步骤S83中，Relay UE可以与UPF之间建立PDU Session。
在步骤S84中，Remote UE执行中继发现程序。
在步骤S85中，Remote UE向Relay UE发送中继服务请求，并尝试建立连接。
在步骤S86中，Relay UE进行QoS能力检测。
可以理解的是，S81至S86执行过程与S61至S66相类似，具体可以参考图8中相应的描述，本公开不再赘述。
在步骤S87中，Relay UE重新创建PDU会话。
在一些例子中，若Relay UE的能力可以为这些Remote UE提供连接。可以直接使用S83中建立的PDU会话。当然，在一些例子中，若没有执行S83，或者S83中的PDU Session不满足当前多个Remote UE的要求，又或者需要新的PDU Session进行中继时，Relay UE在完成与Remote UE之间PC5连接建立之前，可以向UPF发起新的PDU Session建立程序，以创建新的PDU绘画进行相应中继。
在步骤S88中，Relay UE为Remote UE分配IP地址/前缀。
在步骤S89中，Remote UE向Relay UE发起第二层(Layer-2)链路修改指示信息。
在步骤S90中，Relay UE根据链路修改指示信息调整PDU会话。
在步骤S91中，Relay UE向SMF发送多个Remote UE的Remote UE报告。
可以理解的是，S88至S91执行过程与S70至S73相类似，具体可以参考图8中相应的描述，本公开不再赘述。
本公开中继终端通过能力检测，并基于能力检测结果执行对多个远端终端的中继服务，从而可以实现通过同一中继接入网络的各远端终端实现公平且有效的QoS共享。
需要说明的是，本领域内技术人员可以理解，本公开实施例上述涉及的各种实施方式/实施例中可以配合前述的实施例使用，也可以是独立使用。无论是单独使用还是配合前述的实施例一起使用，其实现原理类似。本公开实施中，部分实施例中是以一起使用的实施方式进行说明的。当然，本领域内技术人员可以理解，这样的举例说明并非对本公开实施例的限定。
基于相同的构思，本公开实施例还提供一种中继通信装置。
可以理解的是，本公开实施例提供的中继通信装置为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。结合本公开实施例中所公开的各示例的单元及算法步骤，本公开实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的方法来实现所描述的功能，但是这种实现不应认为超出本公开实施例的技术方案的范围。
图10是根据一示例性实施例示出的一种中继通信装置的示意图。参照图10，该装置100可以是中继终端即Relay UE，该装置100可以包括：处理模块101，用于响应于接收到多个远端终端发送的中继服务请求，对中继终端进行服务质量QoS能力检测；处理模块101还用于，基于能力检测结果，对多个远端终端进行中继接入网络。
本公开中继终端通过能力检测，并基于能力检测结果执行对多个远端终端的中继服务，从而可以实现通过同一中继接入网络的各远端终端实现公平且有效的QoS共享。
在一种实施例中，装置100还包括：发送模块102，用于响应于能力检测结果为QoS能力不满足同时为多个远端终端提供中继服务，向多个远端终端中的至少一个远端终端发送资源受限指示信息，资源受限指示信息用于指示远端终端调整中继接入网络策略。
本公开通过资源受限指示信息可以指示Remote UE调整相应的中继接入网络策略，从而实现通过同一中继接入网络的各远端终端实现公平且有效的QoS共享。
在一种实施例中，发送模块102还用于：根据多个远端终端中各远端终端对应的优先级等级，向优先级等级满足预设条件的至少一个远端终端，发送资源受限指示信息。
本公开通过向优先级等级满足预设条件的至少一个Remote UE发送资源受限指示信息，可以保证Relay UE优先保证为重要的Remote UE提供中继服务。
在一种实施例中，处理模块101还用于：响应于满足创建分组数据单元PDU会话的条件，重新创建PDU会话。
在一种实施例中，装置100还包括：接收模块103；满足创建PDU会话的条件包括以下至少之一：中继终端已创建的分组数据单元PDU会话不满足使多个远端终端接入网络；接收模块103接收到创建新的PDU会话的指示信息。
在一种实施例中，处理模块101还用于：响应于能力检测结果为QoS能力满足同时为多个远端终端提供中继服务，执行对多个远端终端进行中继，以使多个远端终端接入网络。
关于上述实施例中的装置100，其中各个模块执行操作的具体方式已经在有关方法的实施例中进行了详细描述，此处将不做详细阐述说明。
图11是根据一示例性实施例示出的一种中继通信装置的示意图。参照图11，该装置 200可以是远端终端即Remote UE，该装置200可以包括：接收模块201，用于接收中继终端发送的资源受限指示信息，资源受限指示信息为中继终端基于服务质量QoS能力检测结果为QoS能力不满足同时为多个远端终端提供中继服务时发送的；处理模块202，用于基于资源受限指示信息调整中继接入网络策略。
本公开通过中继终端能力检测后发送的资源受限指示信息调整中继接入网络策略，从而实现通过同一中继接入网络的各远端终端实现公平且有效的QoS共享。
在一种实施例中，处理模块202还用于：响应于远端终端支持多个QoS等级，调整远端终端的QoS等级。
本公开通过Remote UE调整相应的QoS等级，从而实现通过同一中继接入网络的各远端终端实现公平且有效的QoS共享。
在一种实施例中，处理模块202还用于：调整远端终端接入的中继终端。
本公开通过Remote UE调整接入的Relay UE，从而实现通过同一中继接入网络的各远端终端实现公平且有效的QoS共享。
关于上述实施例中的装置200，其中各个模块执行操作的具体方式已经在有关方法的实施例中进行了详细描述，此处将不做详细阐述说明。
图12是根据一示例性实施例示出的一种中继通信设备300示意图。例如，设备300可以被提供为Relay UE，或者是Remote UE。参照图12，设备300可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理、RedCap终端等设备。
参照图12，设备300可以包括以下一个或多个组件：处理组件302，存储器304，电力组件306，多媒体组件308，音频组件310，输入/输出(I/O)接口312，传感器组件314，以及通信组件316。
处理组件302通常控制设备300的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件302可以包括一个或多个处理器320来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件302可以包括一个或多个模块，便于处理组件302和其他组件之间的交互。例如，处理组件302可以包括多媒体模块，以方便多媒体组件308和处理组件302之间的交互。
存储器304被配置为存储各种类型的数据以支持在设备300的操作。这些数据的示例包括用于在设备300上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器304可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)， 可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电力组件306为设备300的各种组件提供电力。电力组件306可以包括电源管理系统，一个或多个电源，及其他与为设备300生成、管理和分配电力相关联的组件。
多媒体组件308包括在所述设备300和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件308包括一个前置摄像头和/或后置摄像头。当设备300处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件310被配置为输出和/或输入音频信号。例如，音频组件310包括一个麦克风(MIC)，当设备300处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器304或经由通信组件316发送。在一些实施例中，音频组件310还包括一个扬声器，用于输出音频信号。
I/O接口312为处理组件302和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件314包括一个或多个传感器，用于为设备300提供各个方面的状态评估。例如，传感器组件314可以检测到设备300的打开/关闭状态，组件的相对定位，例如所述组件为设备300的显示器和小键盘，传感器组件314还可以检测设备300或设备300一个组件的位置改变，用户与设备300接触的存在或不存在，设备300方位或加速/减速和设备300的温度变化。传感器组件314可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件314还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件314还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件316被配置为便于设备300和其他设备之间有线或无线方式的通信。设备300可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件316经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件316还包括近场通信(NFC)模块，以促进短 程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，设备300可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器304，上述指令可由设备300的处理器320执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
本公开Relay UE在其被多个Remote UE选中时将执行能力检查。当识别出多个Remote UE，且Relay UE由于能力限制不能同时为多个Remote UE服务时，Relay UE将向QoS优先级较低的Remote UE发送Limited Resource Indication。Remote UE如果支持多个QoS等级，则Remote UE可以重新选择Relay UE或降低QoS等级。从而可以实现通过同一中继接入网络的各远端终端实现公平且有效的QoS共享。
进一步可以理解的是，本公开中“多个”是指两个或两个以上，其它量词与之类似。“和/或”，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。字符“/”一般表示前后关联对象是一种“或”的关系。单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
进一步可以理解的是，术语“第一”、“第二”等用于描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开，并不表示特定的顺序或者重要程度。实际上，“第一”、“第二”等表述完全可以互换使用。例如，在不脱离本公开范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。
进一步可以理解的是，本公开实施例中尽管在附图中以特定的顺序描述操作，但是不应将其理解为要求按照所示的特定顺序或是串行顺序来执行这些操作，或是要求执行全部所示的操作以得到期望的结果。在特定环境中，多任务和并行处理可能是有利的。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利范围来限制。

Claims (13)

  1. 一种中继通信方法，其特征在于，应用于中继终端，所述方法包括：
    响应于接收到多个远端终端发送的中继服务请求，对所述中继终端进行服务质量QoS能力检测；
    基于所述能力检测结果，对所述多个远端终端进行中继接入网络。
  2. 根据权利要求1所述的方法，其特征在于，所述基于所述能力检测结果，对所述多个远端终端进行中继接入网络，包括：
    响应于所述能力检测结果为QoS能力不满足同时为所述多个远端终端提供中继服务，向所述多个远端终端中的至少一个远端终端发送资源受限指示信息，所述资源受限指示信息用于指示远端终端调整中继接入网络策略。
  3. 根据权利要求2所述的方法，其特征在于，所述向所述多个远端终端中的至少一个远端终端发送资源受限指示信息，包括：
    根据所述多个远端终端中各远端终端对应的优先级等级，向优先级等级满足预设条件的至少一个远端终端，发送资源受限指示信息。
  4. 根据权利要求1至3中任意一项所述的方法，其特征在于，所述方法还包括：
    响应于满足创建分组数据单元PDU会话的条件，重新创建PDU会话。
  5. 根据权利要求4所述的方法，其特征在于，所述满足创建PDU会话的条件包括以下至少之一：
    所述中继终端已创建的分组数据单元PDU会话不满足使所述多个远端终端接入网络；
    接收到创建新的PDU会话的指示信息。
  6. 根据权利要求1所述的方法，其特征在于，基于所述能力检测结果，对所述多个远端终端进行中继接入网络，包括：
    响应于所述能力检测结果为QoS能力满足同时为所述多个远端终端提供中继服务，执行对所述多个远端终端进行中继，以使所述多个远端终端接入网络。
  7. 一种中继通信方法，其特征在于，应用于远端终端，所述方法包括：
    接收中继终端发送的资源受限指示信息，所述资源受限指示信息为所述中继终端基于服务质量QoS能力检测结果，为QoS能力不满足同时为多个远端终端提供中继服务时发送的；
    基于所述资源受限指示信息调整中继接入网络策略。
  8. 根据权利要求7所述的方法，其特征在于，所述调整中继接入网络策略，包括：
    响应于所述远端终端支持多个QoS等级，调整所述远端终端的QoS等级。
  9. 根据权利要求7所述的方法，其特征在于，所述调整中继接入网络策略，包括：
    调整所述远端终端接入的中继终端。
  10. 一种中继通信装置，其特征在于，所述装置为中继终端，所述装置包括：
    处理模块，用于响应于接收到多个远端终端发送的中继服务请求，对所述中继终端进行服务质量QoS能力检测；
    处理模块还用于，基于所述能力检测结果，对所述多个远端终端进行中继接入网络。
  11. 一种中继通信装置，其特征在于，所述装置为远端终端，所述装置包括：
    接收模块，用于接收中继终端发送的资源受限指示信息，所述资源受限指示信息为所述中继终端基于服务质量QoS能力检测结果为QoS能力不满足同时为多个远端终端提供中继服务时发送的；
    处理模块，用于基于所述资源受限指示信息调整中继接入网络策略。
  12. 一种通信设备，其特征在于，所述设备为中继终端或远端终端，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：执行权利要求1至6或7至9中任意一项所述的方法。
  13. 一种非临时性计算机可读存储介质，当所述存储介质中的指令由中继终端或远端终端的处理器执行时，使得中继终端能够执行权利要求1至6或7至9中任意一项所述的方法。
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CN112752240A (zh) * 2019-10-30 2021-05-04 大唐移动通信设备有限公司 直接通信的处理方法、装置、中继终端及远端终端
US20210297992A1 (en) * 2020-03-20 2021-09-23 Qualcomm Incorporated Channel restrictions for relayed sidelink communications
CN113543266A (zh) * 2020-04-16 2021-10-22 展讯半导体(南京)有限公司 无线通信链路建立方法与装置、终端和中继设备

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CN107079370A (zh) * 2015-11-09 2017-08-18 华为技术有限公司 一种信号强度测量方法及设备
CN112752240A (zh) * 2019-10-30 2021-05-04 大唐移动通信设备有限公司 直接通信的处理方法、装置、中继终端及远端终端
US20210297992A1 (en) * 2020-03-20 2021-09-23 Qualcomm Incorporated Channel restrictions for relayed sidelink communications
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