WO2022222748A1 - Procédé et appareil de communication par relais - Google Patents

Procédé et appareil de communication par relais Download PDF

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Publication number
WO2022222748A1
WO2022222748A1 PCT/CN2022/085260 CN2022085260W WO2022222748A1 WO 2022222748 A1 WO2022222748 A1 WO 2022222748A1 CN 2022085260 W CN2022085260 W CN 2022085260W WO 2022222748 A1 WO2022222748 A1 WO 2022222748A1
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Prior art keywords
qos
parameter set
network element
candidate
user equipment
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PCT/CN2022/085260
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English (en)
Chinese (zh)
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许胜锋
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华为技术有限公司
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Publication of WO2022222748A1 publication Critical patent/WO2022222748A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]

Definitions

  • the present application relates to the field of communication, and more particularly, to a relay communication method and apparatus.
  • D2D device-to-device
  • UE user equipment
  • AN access network
  • RAN radio access network
  • Remote UE remote user equipment
  • Relay UE relay user equipment
  • D2D communication can support relay, that is, the Remote UE can use the Proximity-based Services Communication 5 (PC5) link between the Remote UE and the Relay UE and the protocol data unit (PDU) of the Relay UE. ) session to realize the uplink and downlink transmission of data.
  • PC5 Proximity-based Services Communication 5
  • PDU protocol data unit
  • the present application provides a relay communication method and device, which can guarantee the end-to-end QoS requirements of a Remote UE.
  • a first aspect provides a relay communication method, which is characterized by comprising: a first network element acquiring a QoS requirement of a data flow of a remote user equipment; the first network element, according to the QoS requirement of the data flow, Send the first candidate parameter set to the second network element, where the first candidate parameter set is used to determine the target QoS parameter set, and the QoS parameters in the target QoS parameter set are used for the connection between the relay user equipment and the user plane function network element. transfer the data stream between.
  • the first network element such as a PCF network element
  • the first network element can generate a first candidate parameter set for the data flow according to the QoS requirements of the data flow of the remote user equipment obtained from the AF network element, and use
  • the RAN node selects a matching candidate QoS configuration file that satisfies the data flow transmission between the current relay user equipment and the user plane network element, and further, the second network element, such as the SMF network element or the relay user equipment, prepares a Select the QoS configuration file to determine the PC5 QoS parameters of the PC5 link, and then adjust the QoS configuration of the PC5 link and the Relay UE PDU session to ensure the end-to-end QoS requirements of the remote user equipment.
  • the first network element obtains the identification information and data flow information of the remote user equipment from, and stores the identification information and data flow information of the remote user equipment.
  • the first network element determines that the requested service data flow is the remote user according to the stored identification information and data flow information of the remote user equipment and the acquired QoS requirements of the data flow of the remote user equipment device data flow.
  • the method further includes: the first candidate parameter set includes at least one QoS parameter set.
  • the first candidate parameter set includes multiple QoS parameter sets, so that multiple candidate QoS configuration files can be generated, which is convenient for the RAN to select and match the candidate QoS configuration files, and then the SMF network element or the relay user equipment Determine the PC5 QoS parameters updated by the PC5 link according to the matching candidate QoS configuration file, realize the adjustment of the QoS configuration of the PC5 link and the Relay UE PDU session, and ensure the end-to-end QoS requirements of the remote user equipment.
  • the QoS requirement of the data flow of the remote user equipment obtained by the first network element is (x, y, z), where x, y, and z are three different QoS parameters, and x, y, and z are greater than or equal to 0.
  • the first network element can generate different QoS parameter sets according to the QoS requirement, for example, (x1, y1, z1), (x2, y2, z2), (x3, y3, z3) . . .
  • x1, x2, x3 are three QoS parameters that meet the requirements of parameter x
  • y1, y2, y3 are three QoS parameters that meet the requirements of parameter y
  • z1, z2, z3 are three QoS parameters that meet the requirements of parameter z.
  • the first network element can generate different QoS parameters according to the delay requirement.
  • the delay parameters can be 6ms, 7ms, 8ms, x1, x2, x3 are 6ms, 7ms, 8ms respectively, that is to say, three sets of QoS parameters can be generated.
  • the delay parameters in these three sets of QoS parameters They are 6ms, 7ms, and 8ms respectively.
  • the method further includes: the first network element sending a second candidate parameter set to the second network element according to the QoS requirement of the data flow; or, The first network element sends a second candidate parameter set to the second network element according to the first candidate parameter set; wherein, the second candidate parameter set is used to determine the target proximity based service communication PC5 QoS parameter set, the The PC5 QoS parameters in the target PC5 QoS parameter set are used to transmit the data stream between the relay user equipment and the remote user equipment.
  • the first network element can also send the second candidate parameter set, and then the second network element selects the target PC5 QoS parameter set according to the second candidate parameter set, and then determines the PC5 according to the matching candidate QoS configuration file.
  • PC5 QoS parameters for link updates Adjust the QoS configuration of PC5 link and Relay UE PDU session to ensure the end-to-end QoS requirements of remote user equipment.
  • the first network element generates a first candidate parameter set, where the QoS parameters are used to transmit the data flow between the relay user equipment and the user plane function network element, and the first network element also A second set of candidate parameters may be generated, wherein the PC5 QoS parameters are used to transmit the data stream between the relay user equipment and the remote user equipment.
  • the first network element may generate the second candidate parameter set according to the QoS requirement of the data flow, or may determine the second candidate parameter set according to the generated first candidate parameter set.
  • the QoS requirement of the data flow of the remote user equipment obtained by the first network element is (x, y, z), where x, y, and z are three different QoS parameters, and x, y, and z are greater than or equal to 0.
  • the first network element can generate different QoS parameter sets (first parameter sets) according to the QoS requirements, for example, (x1, y1, z1), (x2, y2, z2), (x3, y3, z3) . . .
  • x1, x2, x3 are three QoS parameters that meet the requirements of parameter x
  • y1, y2, y3 are three QoS parameters that meet the requirements of parameter y
  • z1, z2, z3 are three QoS parameters that meet the requirements of parameter z
  • the first network element can generate different sets of PC5 QoS parameters according to the QoS requirement or the first candidate parameter set, for example, (x1', y1', z1'), (x2', y2', z2'), (x3 ', y3', z3').
  • x1' and x1 are used as the QoS parameters of the PC5 link and the QoS parameters of the PDU session respectively, and should meet the requirements of the parameter x, y1' and y1, z1' and z1 are the same.
  • the first network element can generate different QoS parameters according to the delay requirement.
  • the delay parameters can be 6ms, 7ms, 8ms, x1, x2, x3 are 6ms, 7ms, 8ms respectively, that is to say, three sets of QoS parameters can be generated.
  • the delay parameters in these three sets of QoS parameters are 6ms, 7ms, and 8ms respectively; the first network element can generate different sets of PC5 QoS parameters according to the QoS requirements or the first candidate parameter set, for example, the delay parameters can be 4ms, 3ms, 2ms, x1', x2' , x3' are 4ms, 3ms, and 2ms respectively, that is to say, three sets of PC5 QoS parameters can be generated, and the delay parameters in these three sets of PC5 QoS parameters are 4ms, 3ms, and 2ms, respectively.
  • the method further includes: the second candidate parameter set includes at least one PC5 QoS parameter set.
  • the second candidate parameter set includes a plurality of PC5 QoS parameter sets, which are used to determine the target PC5 QoS parameter set, and then combine the target PC5 QoS parameter set and the matching candidate QoS configuration file to determine the PC5 link update PC5 QoS parameters to adjust the QoS configuration of the PC5 link and Relay UE PDU session to ensure the end-to-end QoS requirements of the remote user equipment.
  • the method further includes: the first network element sending the correspondence between the first QoS parameter set and the second QoS parameter set to the second network element, or, the The first network element sends the second network element the correspondence between the QoS parameters in the first QoS parameter set and the QoS parameters in the second QoS parameter set; the first QoS parameter set belongs to the first candidate parameter set, and the second QoS parameter set belongs to the first candidate parameter set.
  • the QoS parameter set belongs to the second candidate parameter set.
  • the first network element sends the correspondence between the first QoS parameter set and the second QoS parameter set or the correspondence between the QoS parameters in the two parameter sets, and then the second network element matches the candidate according to the correspondence and
  • the QoS configuration file determines the PC5 QoS parameters of the PC5 link update, realizes the adjustment of the PC5 link QoS parameters, and guarantees the end-to-end QoS requirements of the remote user equipment.
  • the first network element selects one parameter set in the first candidate parameter set as the first QoS parameter set, and the first network element selects the second candidate parameter set which is the same as the first QoS parameter set A parameter set corresponding to the set is used as the second QoS parameter set, and the first QoS parameter set and the second QoS parameter set are sent; or, the first network element sends the QoS parameters and the second QoS parameter set in the first QoS parameter set The PC5 QoS parameter corresponding to the QoS parameter in .
  • the first candidate parameter set includes: (x1, y1, z1), (x2, y2, z2), (x3, y3, z3)...
  • the second candidate parameter set includes: (x1', y1', z1'), (x2', y2', z2'), (x3', y3', z3').
  • the first network element may send the first QoS parameter set (x1, y1, z1) and the second QoS parameter set (x1', y1', z1') to the second network element.
  • x1 and x1' are the corresponding QoS parameters, and the correspondence here refers to that x1 is the QoS parameter for data flow transmission between the relay user equipment and the user plane functional network element, and x1' is the QoS parameter at the remote end.
  • the PC5 QoS parameters of the data stream transmitted between the user equipment and the relay user equipment, x1 and x1' meet the QoS requirements of the data stream.
  • the first network element may send the correspondence between x1 and x1' to the second network element.
  • the method further includes: the first network element determining the first candidate parameter set according to the QoS requirement of the data flow.
  • the method further includes: the first network element determining the first candidate parameter according to the QoS requirement of the data flow and the identification information of the remote user equipment gather.
  • the method further includes: the first network element determining the first candidate parameter according to the QoS requirement of the data flow and the subscription information of the remote user equipment set; or the first network element determines the first candidate parameter set according to the QoS requirements of the data flow and the subscription information of the relay user equipment; or the first network element determines the first candidate parameter set according to the QoS requirements of the data flow and the remote user equipment
  • the subscription information of the end user equipment and the subscription information of the relay user equipment determine the first candidate parameter set.
  • the first network element determines the first candidate parameter set according to the QoS requirements of the data flow and the subscription information of the remote user equipment or relay user equipment, which refers to the QoS requirements of the data flow and
  • the QoS parameters included in the subscription information are used to determine possible QoS parameters used for relaying user equipment and transmitting data streams on the user plane.
  • the subscription information of the remote user equipment and the relaying user equipment it is helpful to further meet the requirements for the user equipment to transmit the data. QoS requirements of the flow.
  • the QoS requirement of the data flow of the remote user equipment obtained by the first network element is (x, y, z), where x, y, and z are three different QoS parameters, and x, y, and z are greater than or equal to 0.
  • the subscription information of the remote user equipment includes QoS parameters x2, x3, and x5, and the first network element can generate the first candidate parameter set according to the QoS requirements and the subscription information: (x2, y2, z2), (x3, y3, z3), (x5, y5, z5).
  • the method further includes: the first network element is a policy control function network element or a unified data management function network element, and the second network element is a session management function network element Yuan.
  • a second aspect provides a relay communication method, characterized by comprising: a second network element receiving a first candidate parameter set from a first network element, where the first candidate parameter set is used to determine a target QoS parameter set, the QoS parameters in the target QoS parameter set are used to transmit the data flow of the remote user equipment between the relay user equipment and the user plane function network element; the second network element according to the first candidate parameter set, Sending an alternative QoS configuration file to the radio access network RAN node, the alternative QoS configuration file is used by the RAN node to determine the matching alternative QoS configuration file; the second network element receives the matching alternative QoS configuration file from the RAN node , wherein the matching candidate QoS configuration file is the QoS configuration file satisfied by the RAN node, and the matching candidate QoS configuration file belongs to the candidate QoS configuration file; the second network element, according to the matching candidate QoS configuration file, sends a The relay user equipment sends PC5 QoS parameters, and the PC5 Qo
  • the second network element receives the first candidate parameter set, determines the candidate QoS configuration file and sends it to the RAN, and the RAN selects and matches the candidate QoS configuration file from it, and the second network element selects and matches the candidate QoS configuration file according to the matching
  • the alternative QoS configuration file determines the PC5 QoS parameters for transmitting the data stream between the relay user equipment and the remote user equipment, further realizes the adjustment of PC5 link configuration parameters, and ensures the end-to-end QoS requirements of the remote user equipment.
  • the second network element may generate multiple QoS configuration files for the data flow according to the first candidate parameter set and send them to the RAN node.
  • the matching candidate QoS configuration file of the transmission requirement is associated and sent to the second network element, and the second network element can determine the PC5 QoS parameter according to the matching candidate QoS configuration file.
  • the method further includes: the second network element determining the PC5 QoS parameter according to the matching candidate QoS configuration file; the second network element reporting to the The relay user equipment sends the PC5 QoS parameters.
  • the second network element determines the PC5 QoS parameter according to the matching candidate QoS configuration file sent by the RAN and sends it to the relay user equipment. It is used for relay user equipment to notify remote user equipment to adjust PC5 QoS parameters of PC5 link to ensure end-to-end QoS requirements of remote user equipment.
  • the method further includes: the second network element receiving a second candidate parameter set from the first network element, the second candidate parameter set including at least A PC5 QoS parameter set; the second network element determines a target PC5 QoS parameter set according to the second candidate parameter set and the matching candidate QoS configuration file, and the target PC5 QoS parameter set includes the PC5 QoS parameter.
  • the second network element can receive the second candidate parameter set, and according to the second candidate parameter set and the matching candidate QoS configuration file, the target PC5 QoS parameter set can be determined, and further according to the target PC5 QoS parameter set The set determines the PC5 QoS parameters, which are used by the relay user equipment to notify the remote user equipment to adjust the PC5 QoS parameters of the PC5 link to ensure the end-to-end QoS requirements of the remote user equipment.
  • the first candidate parameter set received by the second network element includes: (x1, y1, z1), (x2, y2, z2), (x3, y3, z3)
  • the second candidate parameter set includes: (x1 ', y1', z1'), (x2', y2', z2'), (x3', y3', z3')
  • the second network element determines the target PC5 QoS parameter set as ( x1', y1', z1'), and further determine PC5 QoS parameters according to the target PC5 QoS parameter set.
  • the method further includes: the second network element receiving the correspondence between the first QoS parameter set and the second QoS parameter set from the first network element, or , the second network element receives the correspondence between the QoS parameters in the first QoS parameter set from the first network element and the QoS parameters in the second QoS parameter set, where the first QoS parameter set belongs to the first candidate parameter set, The second QoS parameter set belongs to the second candidate parameter set; the second network element determines the PC5 QoS parameter according to the corresponding relationship and the matching candidate QoS configuration file.
  • the second network element receives the corresponding relationship between the first QoS parameter set and the second QoS parameter set or the corresponding relationship between the QoS parameters in the two parameter sets, and then the second network element matches the candidate according to the corresponding relationship and
  • the QoS configuration file determines the PC5 QoS parameters of the PC5 link, realizes the adjustment of the QoS parameters of the PC5 link, and ensures the end-to-end QoS requirements of the remote user equipment.
  • the correspondence between the second network element receiving the first parameter set and the second parameter set is: (x1, y1, z1) corresponds to (x1', y1', z1'), or the QoS parameters of the first parameter set and The corresponding relationship between the QoS parameters of the second parameter set is: x1 corresponds to x1'. Further, the second network element determines the PC5 QoS parameter according to the corresponding relationship and the matching candidate QoS configuration file.
  • the method further includes: if the relay user equipment has been pre-configured or the network is authorized to configure the QoS parameters in the first QoS parameter set and the second QoS parameter set.
  • the first network element is a policy control function network element or a unified data management function network element
  • the second network element is a session management function network element
  • a relay communication method which includes: a first network element obtains a quality of service (QoS) requirement of a data flow of a remote user equipment; request, and send the corresponding relationship to the second network element; wherein, the corresponding relationship includes at least a first corresponding relationship and a second corresponding relationship, the first corresponding relationship includes the corresponding relationship between the first QoS parameter and the second QoS parameter, the The second correspondence includes the correspondence between the third QoS parameter and the fourth QoS parameter; wherein the first QoS parameter and the third QoS parameter are used to transmit the A data flow, the second QoS parameter and the fourth QoS parameter are used to transmit the data flow between the relay user equipment and the user plane functional network element, and the second QoS parameter is different from the fourth QoS parameter.
  • QoS quality of service
  • the corresponding relationship refers to the corresponding relationship between the PC5 QoS parameter and the QoS parameter corresponding to the PDU session of the Relay UE.
  • the first network element can generate multiple sets of QoS parameter correspondences for the data flow according to the QoS requirements of the data flow of the remote user equipment obtained from the AF network element.
  • the correspondence between the QoS parameters of the data flow transmitted between the relay user equipment and the remote user equipment and the QoS parameters used to transmit the data flow between the relay user equipment and the user plane function network element, used for RAN node selection The candidate QoS configuration file is currently matched, and the SMF network element or the relay user equipment further determines the PC5 QoS parameters of the PC5 link according to the matching candidate QoS configuration file, and then adjusts the QoS configuration of the PC5 link to ensure the remote user equipment. end-to-end QoS requirements.
  • the QoS requirement of the data flow of the remote user equipment obtained by the first network element is (x, y, z), where x, y, and z are three different QoS parameters, and x, y, and z are greater than or equal to 0.
  • the first network element can generate different correspondences according to the QoS requirements, for example, the first correspondence is the correspondence between x1 and x1', and the second correspondence is the correspondence between x2 and x2'.
  • x1, x2, x1', x2' are three QoS parameters that meet the requirements of parameter x, wherein, it should be understood that x1 and x1' are the first QoS parameter and the third QoS parameter respectively, which are used in the relay user equipment
  • x1 and x1' are the first QoS parameter and the third QoS parameter respectively, which are used in the relay user equipment
  • the data stream is transmitted with the remote user equipment
  • x2 and x2' are the second QoS parameter and the fourth QoS parameter respectively, and are used to transmit the data stream between the relay user equipment and the user plane functional network element.
  • the second network element generates two sets of different QoS parameters corresponding to the PDU sessions of the Relay UE according to the QoS requirements, that is, the second QoS parameter is different from the fourth QoS parameter.
  • the method further includes: the first network element sends indication information to the second network element according to the QoS requirement of the data flow; wherein, the indication The information is used to instruct to generate an alternative QoS configuration file, and the alternative QoS configuration file is used for the RAN node to determine a matching alternative QoS configuration file, where the matching alternative QoS configuration file is a QoS configuration file satisfied by the RAN node.
  • the first network element generates the instruction information for instructing the second network element to generate an alternative QoS configuration file, which is further used by the RAN node to determine that the matching of the transmission data flow between the current relay user equipment and the user plane network element is satisfied.
  • Alternative QoS configuration file the instruction information ensures that the second network element generates the matching alternative QoS configuration file, provides preconditions for the subsequent determination of the PC5 QoS parameters of the PC5 link, and then realizes the adjustment of the QoS configuration of the PC5 link, ensuring long-distance End-to-end QoS requirements for end-user equipment.
  • the method further includes: the first network element determining the corresponding relationship according to the QoS requirement of the quality of service of the data flow.
  • the method further includes: the first network element determining a corresponding relationship according to the QoS requirement of the data flow and the identification information of the remote user equipment.
  • the method further includes: the first network element determining the corresponding relationship according to the QoS requirement of the data flow and the subscription information of the remote user equipment; or the The first network element determines the corresponding relationship according to the QoS requirement of the data flow and the subscription information of the relay user equipment; or the first network element determines the corresponding relationship according to the QoS requirement of the data flow and the subscription information of the remote user equipment and the subscription information of the remote user equipment. Relay the subscription information of the user equipment to determine the corresponding relationship.
  • the first network element determines multiple sets of correspondences according to the QoS requirements of the data flow and the subscription information of the remote user equipment or relay user equipment, which refers to the QoS requirements and subscription information of the data flow.
  • the included QoS parameters are used to determine the correspondence between the possible PC5 QoS parameters and the QoS parameters corresponding to the PDU session of the Relay UE. Combined with the subscription information of the remote user equipment and the relay user equipment, it is helpful to further meet the requirements for the user equipment to transmit the data stream. QoS requirements.
  • the QoS requirement of the data flow of the remote user equipment obtained by the first network element is (x, y, z), where x, y, and z are three different QoS parameters, and x, y, and z are greater than or equal to 0.
  • the subscription information of the remote user equipment includes QoS parameters x3 and x5, and the first network element can generate corresponding relationships according to the QoS requirements and the subscription information: x3 and x3', x5 and x5'.
  • the method further includes: the first network element is a policy control function network element or a unified data management function network element, and the second network element is a session management function network element Yuan.
  • a relay communication method which is characterized by comprising: a second network element receiving a correspondence from the first network element; the second network element, according to the correspondence and the sixth QoS parameter, sends a
  • the sixth QoS parameter is the QoS parameter satisfied by the link between the relay user equipment and the user plane function network element; wherein, the correspondence includes at least the first correspondence and the second correspondence
  • the first correspondence includes the correspondence between the first QoS parameter and the second QoS parameter
  • the second correspondence includes the correspondence between the third QoS parameter and the fourth QoS parameter
  • the first QoS parameter and The third QoS parameter is used for transmitting the data flow of the remote user equipment between the relay user equipment and the remote user equipment, and the second QoS parameter and the fourth QoS parameter are used for the relay user equipment
  • the data stream is transmitted between the user plane function network element, and the second QoS parameter is different from the fourth QoS parameter.
  • the second network element receives at least two sets of corresponding relationships, and determines an alternative QoS configuration file according to the corresponding relationship and sends it to the RAN, and the RAN selects and matches the alternative QoS configuration file from the second network element.
  • the element determines the sixth QoS parameter for transmitting the data flow between the relay user equipment and the user plane network element according to the matching candidate QoS configuration file, and further determines the relationship between the remote user equipment according to the sixth QoS parameter and the corresponding relationship.
  • the fifth QoS parameter (PC5 QoS parameter) of the data stream is transmitted to further realize the adjustment of PC5 link configuration parameters and ensure the end-to-end QoS requirements of the remote user equipment.
  • the method further includes: the second network element determines the fifth QoS parameter according to the sixth QoS parameter and the corresponding relationship; The relay user equipment sends the fifth QoS parameter.
  • the second network element can determine the corresponding PC5 QoS parameter according to the parameters and the corresponding relationship of the PDU session of the Relay UE, and the second network element sends the PC5 QoS parameter to the relay user equipment, which is used for the relay user equipment to indicate
  • the remote user equipment realizes the adjustment of PC5 link configuration parameters to ensure the end-to-end QoS requirements of the remote user equipment.
  • the correspondences received by the second network element are the correspondence between x1 and x1', and the second correspondence is the correspondence between x2 and x2'.
  • x1, x2, x1', x2' are four QoS parameters that meet the requirement of parameter x, wherein, it should be understood that x1 and x1' are the first QoS parameter and the third QoS parameter respectively, which are used in the relay user equipment
  • the data stream is transmitted with the remote user equipment
  • x2 and x2' are the second QoS parameter and the fourth QoS parameter respectively, and are used to transmit the data stream between the relay user equipment and the user plane functional network element.
  • the second network element may generate an alternative QoS configuration file according to x1' and x2', and the RAN node determines a matching alternative QoS configuration file that satisfies the data flow transmitted between the current relay user equipment and the user plane network element.
  • the QoS configuration file determines a sixth QoS parameter x3' for relaying user equipment to transmit between user plane network elements, and determines a fifth QoS parameter corresponding to the sixth QoS parameter x3' according to the first correspondence and the second correspondence.
  • the QoS requirement of the data flow of the remote user equipment obtained by the first network element is (x, y, z), where x, y, z are three different QoS parameters, and x, y, z are greater than or equal to 0. Then the first network element can generate different correspondences according to the QoS requirements, for example, the first correspondence is the correspondence between x1 and x1', and the second correspondence is the correspondence between x2 and x2'.
  • x1, x2, x1', x2' are three QoS parameters that meet the requirements of parameter x, wherein, it should be understood that x1 and x1' are the first QoS parameter and the third QoS parameter respectively, which are used in the relay user equipment
  • x1 and x1' are the first QoS parameter and the third QoS parameter respectively, which are used in the relay user equipment
  • the data stream is transmitted with the remote user equipment
  • x2 and x2' are the second QoS parameter and the fourth QoS parameter respectively, and are used to transmit the data stream between the relay user equipment and the user plane functional network element.
  • the second network element generates two sets of different QoS parameters corresponding to the PDU sessions of the Relay UE according to the QoS requirements, that is, the second QoS parameter is different from the fourth QoS parameter.
  • the method further includes: the second network element receiving a matching candidate QoS configuration file from a RAN node, wherein the matching candidate QoS configuration file is the RAN The QoS configuration file satisfied by the node; the second network element determines the sixth QoS parameter according to the matching candidate QoS configuration file.
  • the second network element receives from the RAN node a matching candidate QoS configuration file that satisfies the data flow transmitted between the current relay user equipment and the user plane network element, and the second network element is further based on the matching candidate QoS configuration file.
  • the QoS parameters used for relaying the transmission between the user equipment and the user plane network elements are determined.
  • the method further includes: the second network element sends an alternative QoS configuration file to the RAN node according to the corresponding relationship, where the alternative QoS configuration file is used for The RAN node determines to match the alternative QoS profile.
  • the second network element generates the candidate QoS configuration file according to the corresponding relationship and sends it to the RAN node, so that the RAN node determines the matching candidate that satisfies the transmission data flow between the current relay user equipment and the user plane network element.
  • QoS profile
  • the method further includes: generating, by the second network element, the candidate QoS configuration file according to the second QoS parameter and the fourth QoS parameter; the second The network element sends the alternative QoS configuration file to the RAN node.
  • the second network element generates a corresponding relationship according to the QoS parameters used to relay the data flow between the user equipment and the user plane network element in the corresponding relationship to generate an alternative QoS configuration file and send it to the RAN node for the
  • the RAN node determines an alternative QoS profile that satisfies the matching of the data flow transmitted between the current relay user equipment and the user plane network element.
  • the method further includes: receiving, by the second network element, indication information from the first network element, where the indication information is used to instruct to generate an alternative QoS configuration file;
  • the second network element generates the alternative QoS configuration file according to the second QoS parameter and the fourth QoS parameter, including: the second network element, according to the indication information, the second QoS parameter and the fourth QoS parameter, The alternative QoS profile is generated.
  • the second network element generates an alternative QoS configuration file according to the indication information, which is used by the RAN node to determine the matching alternative QoS configuration file that satisfies the transmission data flow between the current relay user equipment and the user plane network element.
  • the method further includes: the first network element is a policy control function network element or a unified data management function network element, and the second network element is a session management function network element Yuan.
  • a relay communication apparatus executes the units of the methods of the first aspect or various embodiments thereof.
  • the relay communication device determines the PC5 QoS parameters of the PC5 link by matching the alternative QoS configuration file by performing the method in the first aspect or various embodiments thereof, thereby realizing the adjustment of the PC5 link and the Relay UE PDU.
  • the QoS configuration of the session ensures the end-to-end QoS requirements of the remote user equipment.
  • a relay communication device In a sixth aspect, a relay communication device is provided, the relay communication device executing the means of the method of the second aspect or various embodiments thereof.
  • the relay communication device determines the PC5 QoS parameters of the PC5 link by matching the alternative QoS configuration file by performing the method in the second aspect or various embodiments thereof, thereby realizing the adjustment of the PC5 link and the Relay UE PDU.
  • the QoS configuration of the session ensures the end-to-end QoS requirements of the remote user equipment.
  • a relay communication apparatus executes the means of the method in the third aspect or various embodiments thereof.
  • the relay communication device determines the PC5 QoS parameters of the PC5 link by matching the alternative QoS configuration file by performing the method in the third aspect or various embodiments thereof, and then realizes the adjustment of the PC5 link and the Relay UE PDU.
  • the QoS configuration of the session ensures the end-to-end QoS requirements of the remote user equipment.
  • a relay communication apparatus executes the means of the method in the fourth aspect or various embodiments thereof.
  • the relay communication device determines the PC5 QoS parameter of the PC5 link by matching the alternative QoS configuration file by performing the method in the fourth aspect or its various embodiments, and then realizes the adjustment of the PC5 link and the Relay UE PDU.
  • the QoS configuration of the session ensures the end-to-end QoS requirements of the remote user equipment.
  • a relay communication device comprising, a memory, and a processor, where the memory is used for storing computer instructions, and the processor is used for executing the computer instructions stored in the memory, so that the relay communication device executes the first or the first A relay communication method in the second aspect or the third aspect or the fourth aspect and various possible implementations thereof.
  • the relay communication device determines the PC5 QoS parameter of the PC5 link by matching the alternative QoS configuration file by performing the method in the above embodiment, and then realizes the adjustment of the QoS configuration of the PC5 link and the Relay UE PDU session, Ensure the end-to-end QoS requirements of remote user equipment.
  • processors there are one or more processors and one or more memories.
  • the memory may be integrated with the processor, or the memory may be provided separately from the processor.
  • a relay communication apparatus including one of the above-mentioned first network element, second network element, remote user equipment, and relay user equipment.
  • a computer-readable medium stores a computer program (also referred to as code, or instruction) when it runs on a computer, causing the computer to execute the above-mentioned first aspect, The method in any possible implementation manner of the second aspect, the third aspect and the fourth aspect.
  • a twelfth aspect provides a computer program product, the computer program product comprising: a computer program (which may also be referred to as code, or instructions) that, when the computer program is executed, causes the first or second aspect or the The method in any of the possible implementations of the third aspect or the fourth aspect is performed.
  • a computer program which may also be referred to as code, or instructions
  • FIG. 1 shows a schematic diagram of a relay communication system architecture 100 suitable for an embodiment of the present application.
  • FIG. 2 shows a schematic diagram of a network architecture 200 suitable for the relay communication system according to the embodiment of the present application.
  • FIG. 3 shows a schematic block diagram suitable for the relay communication method provided by the embodiment of the present application.
  • FIG. 4 shows a schematic interaction diagram applicable to the relay communication method provided by the embodiment of the present application.
  • FIG. 5 shows another schematic block diagram suitable for the relay communication method provided by the embodiment of the present application.
  • FIG. 6 shows another schematic interaction diagram applicable to the relay communication method provided by the embodiment of the present application.
  • FIG. 7 shows a schematic block diagram of a relay communication apparatus applicable to the embodiment of the present application.
  • FIG. 8 shows a schematic structural diagram of a relay communication apparatus applicable to an embodiment of the present application.
  • the wireless communication systems mentioned in the embodiments of the present application include but are not limited to: Long Term Evolution (Long Term Evolution, LTE) system, LTE Frequency Division Duplex (Frequency Division Duplex, FDD) system, LTE Time Division Duplex (Time Division Duplex, TDD) system ), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, fifth generation (5th Generation, 5G) system, future sixth generation (6th generation) generation, 6G) or New Radio (New Radio, NR), etc.
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the communication system 100 may include two user equipments, such as the user equipment 111 and the user equipment 112 shown in FIG. 1 , and the communication system 100 may also include one access network device, such as the one shown in FIG. 1 .
  • Access network equipment 121 may be any access network device.
  • the user equipment 111 when the user equipment 111 is outside the network coverage or the communication signal with the access network equipment 121 is not good, it can communicate with the user equipment 112, and the user equipment 112 can communicate with the access network equipment 121, thereby realizing
  • the user equipment 111 communicates with the access network device 121, and the access network device 121 forwards the data to the data network through the UPF.
  • the user equipment 111 is connected to the network through indirect communication, and may be referred to as a remote user equipment (Remote UE) in this embodiment of the present application, and the user equipment 121 may be regarded as a user equipment that assists the Remote UE to access the network , which may be referred to as a relay user equipment relay user equipment (Relay UE) in this embodiment of the present application. That is, the Remote UE communicates with the network through the Relay UE to realize uplink and downlink data transmission between the Remote UE and the network.
  • Remote UE remote user equipment
  • Relay UE relay user equipment relay user equipment
  • FIG. 2 shows a schematic diagram of a network architecture 200 of the communication system of the present application.
  • the network architecture of the communication system includes but is not limited to the following network elements:
  • User equipment The user equipment in this embodiment of the present application may also be referred to as: user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal (mobile terminal, MT), access Terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user equipment, etc.
  • the user equipment may be a device that provides voice/data connectivity to the user, eg, a handheld device with wireless connectivity, a vehicle-mounted device, and the like.
  • terminals are: mobile phone (mobile phone), tablet computer, notebook computer, PDA, mobile internet device (MID), wearable device, virtual reality (virtual reality, VR) device, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, and smart grids wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, cellular phone, cordless phone, session initiation protocol , SIP) telephones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, automotive Devices, wearable devices, user equipment in the future 5G network or user equipment in the future evolved public land mobile network (public land mobile network, PLMN), etc., are not limited in this embodiment of the present application.
  • the user equipment may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
  • the user equipment may also be a user equipment in an internet of things (internet of things, IoT) system.
  • IoT internet of things
  • IoT is an important part of the development of information technology in the future. Its main technical feature is to connect items to the network through communication technology, so as to realize the intelligent network of human-machine interconnection and interconnection of things.
  • the IOT technology can achieve massive connections, deep coverage, and power saving of terminals through, for example, a narrow band (narrow band) NB technology.
  • the NB may include one resource block (RB), that is, the bandwidth of the NB is only 180KB.
  • RB resource block
  • the terminals must be discrete in access. According to the communication method of the embodiment of the present application, the congestion problem of the massive terminals of the IOT technology when accessing the network through the NB can be effectively solved.
  • the access device in this embodiment of the present application may be a device for communicating with user equipment, and the access device may also be referred to as an access network device or a wireless access network device, for example, the access device may be an LTE system
  • the evolved base station (evolved NodeB, eNB or eNodeB) in the network can also be a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario, or the access device can be a relay station, access point, Vehicle-mounted devices, wearable devices, access devices in future 5G networks or access devices in future evolved PLMN networks, etc., can be access points (access points, APs) in WLAN, or new wireless systems (new wireless systems).
  • the gNB in the radio, NR) system is not limited in this embodiment of the present application.
  • the user equipment may also communicate with user equipments in other communication systems, for example, inter-device communication.
  • the user equipment may also transmit (eg, send and/or receive) time synchronization messages with user equipments in other communication systems.
  • Access device in this embodiment of the present application may be a device used for communicating with user equipment, and the access device may also be referred to as an access network device or a wireless access network device,
  • the access device may be an evolved NodeB (evolved NodeB, eNB or eNodeB) in the LTE system, or may be a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario, or the access device
  • the device can be a relay station, an access point, a vehicle-mounted device, a wearable device, an access device in a 5G network or an access device in a future evolved PLMN network, etc. It can be an access point (AP) in a WLAN , which may be a gNB in an NR system, which is not limited in this embodiment of the present application.
  • AP access point
  • the access device is a device in the RAN, or in other words, is a RAN node that accesses the user equipment to the wireless network.
  • gNB transmission reception point
  • eNB evolved Node B
  • RNC radio network controller
  • Node B Node B, NB
  • BSC Base Station Controller
  • BTS Base Transceiver Station
  • HNB Home Base Station
  • a network device may include a centralized unit (CU) node, or a distributed unit (DU) node, or a RAN device including a CU node and a DU node, or a control plane CU node (CU).
  • CU centralized unit
  • DU distributed unit
  • RAN device including a CU node and a DU node, or a control plane CU node (CU).
  • CU-UP nodes user plane CU nodes
  • the access device provides services for the cell, and the user equipment communicates with the access device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may correspond to the access device (for example, a base station).
  • a cell can belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here can include: urban cell (metro cell), micro cell (micro cell), pico cell (pico cell), millicell Femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • a carrier in an LTE system or a 5G system can have multiple cells working on the same frequency at the same time.
  • the concepts of the above-mentioned carrier and cell can also be considered equivalent.
  • CA carrier aggregation
  • the concepts of the carrier and the cell are equivalent, for example, the user equipment accessing a carrier is equivalent to accessing a cell.
  • the communication system of the present application can also be applied to the vehicle to everything (V2X) technology, that is, the user equipment of the present application can also be a car, for example, a smart car or an autonomous car.
  • V2X vehicle to everything
  • V2X represents different communication targets.
  • V2X can include but is not limited to: vehicle to vehicle (V2V), vehicle to infrastructure (V2I), vehicle to network (vehicle to network, V2N), and vehicle to pedestrian (V2P).
  • V2V vehicle to vehicle
  • V2I vehicle to infrastructure
  • V2N vehicle to network
  • V2P vehicle to pedestrian
  • an access device can configure a "zone" for the UE.
  • the area may also be referred to as a geographic area.
  • regions the world will be divided into regions, which are defined by reference points, length, and width.
  • the UE determines an area identifier (identifier, ID), it will use the length and width of the area, the number of areas above the length, the number of areas above the width, and reference points to perform the remaining operations.
  • ID area identifier
  • the above information can be configured by the access device.
  • V2X services can be provided in two ways: namely, a Proximity-based Services Communication 5 (PC5) interface based approach and a Uu interface based approach.
  • the PC5 interface is an interface defined on the basis of a sidelink, and by using this interface, communication transmission can be directly performed between communication devices (eg, automobiles).
  • the PC5 interface can be used outside of coverage (OOC) and in coverage (IC), but only authorized communication devices can use the PC5 interface for transmission.
  • Access and Mobility Management Function (AMF) network element mainly used for mobility management and access management, etc., and can be used to implement mobility management entity (MME) in the LTE system Functions other than session management, such as lawful interception and access authorization/authentication.
  • MME mobility management entity
  • the AMF network element provides services for a session in the user equipment, a storage resource of the control plane is provided for the session to store the session identifier, the SMF network element identifier associated with the session identifier, and the like.
  • the functions of the access and mobility management network elements can be implemented.
  • Session Management Function network element: mainly used for session management, Internet Protocol (IP) address allocation and management of user equipment, selection and management of user plane functions, policy control, or The termination point of the charging function interface and the downlink data notification, etc. In this embodiment of the present application, it can be used to implement the function of the session management network element.
  • IP Internet Protocol
  • PCF Policy Control Function
  • Unified data management (UDM) network element It is mainly responsible for the processing of UE subscription data, including the storage and management of user IDs, user subscription data, and authentication data.
  • User Plane Function (UPF) network element It can be used for packet routing and forwarding, or quality of service (QoS) processing of user plane data.
  • User data can be accessed to a data network (DN) through this network element, and user data can also be received from the data network and transmitted to the user equipment through the access network equipment.
  • DN data network
  • the transmission resources and scheduling functions that provide services for user equipment in the UPF network element are managed and controlled by the SMF network element. In this embodiment of the present application, it can be used to implement the function of the user plane network element.
  • Network Exposure Function Network element: It is used to securely open services and capabilities provided by 3GPP network functions to the outside, and mainly supports the secure interaction between 3GPP networks and third-party applications.
  • AF network element used to perform data routing affected by applications, access network open function network elements, or interact with the policy framework to perform policy control, such as affecting data routing decisions, policy control functions Or provide some services of a third party to the network side.
  • NSF Network Slice Selection Function
  • AUSF Authentication Server Function
  • Network Repository Function (NRF) network element: supports registration and discovery of network functions.
  • Unified Data Repository (UDR) network element stores and obtains subscription data used by UDM and PCF.
  • the N2 interface is the reference point between the RAN and AMF entities, which is used for sending NAS (Non-Access Stratum, non-access stratum) messages, etc.
  • the N3 interface is the reference point between the RAN and UPF network elements, It is used to transmit data on the user plane, etc.
  • the N4 interface is the reference point between the SMF network element and the UPF network element, and is used to transmit information such as the tunnel identification information of the N3 connection, the data buffer indication information, and the downlink data notification message.
  • the UE, (R)AN, UPF and DN in FIG. 2 are generally referred to as data plane network functions and entities, and the data traffic of the user can be transmitted through the PDU session established between the UE and the DN, and the transmission will pass through ( R)AN and UPF are two network function entities; while other parts are called control plane network functions and entities, which are mainly responsible for functions such as authentication and authentication, registration management, session management, mobility management and policy control, thereby Realize reliable and stable transmission of user layer traffic.
  • the above-mentioned network architecture applied to the embodiments of the present application is only a network architecture described from the perspective of a traditional point-to-point architecture and a service-oriented architecture, and the network architecture applicable to the embodiments of the present application is not limited thereto. Any network architecture capable of implementing the functions of the foregoing network elements is applicable to the embodiments of the present application.
  • the name of the interface between each network element in FIG. 2 is just an example, and the name of the interface in the specific implementation may be other names, which are not specifically limited in this application.
  • the names of the messages (or signaling) transmitted between the above network elements are only an example, and do not constitute any limitation on the functions of the messages themselves.
  • network element may also be referred to as an entity, a device, an apparatus, or a module, etc., which is not particularly limited in this application.
  • SMF SMF network element
  • SMF entity SMF entity
  • FIG. 3 is a schematic block diagram of a relay communication method provided by an embodiment of the present application.
  • the method 300 may include the following steps:
  • the first network element acquires the QoS requirement of the data flow #A of the remote user equipment.
  • the first network element may obtain the QoS requirements of the remote user equipment from the application function network element AF, and the QoS requirements may include delay parameters, rate, priority, reliability, etc., and the corresponding data flow #A Flow description.
  • the data flow description can be in the form of triples (destination IP address, destination port and transport layer protocol) or quintuple (source IP address, source port, destination IP address, destination port and transport layer protocol).
  • the first network element may also acquire the UE address (UE address) of the remote user equipment, the AF identifier (AF Identifier), and the identification information of the user equipment.
  • UE address UE address
  • AF identifier AF Identifier
  • the application function network element AF can acquire the QoS requirement and other information by interacting with the remote user equipment on the service requirement.
  • the first network element may be a PCF network element or a UDM network element.
  • the first network element generates a first candidate parameter set for the data flow #A according to the QoS requirement, and sends the set to the second network element.
  • the first network element determines a first alternative parameter set according to the QoS requirement and the identification information of the remote user equipment, where the first alternative parameter set refers to an alternative QoS parameter set (Alternative QoS parameter sets) , including at least one QoS parameter set (QoS parameter set), the first candidate parameter set is used to determine a target QoS parameter set, and the QoS parameters in the target QoS parameter set are used for transmission between the second device and the UPF network element The stream #A.
  • the first alternative parameter set refers to an alternative QoS parameter set (Alternative QoS parameter sets) , including at least one QoS parameter set (QoS parameter set)
  • the first candidate parameter set is used to determine a target QoS parameter set
  • the QoS parameters in the target QoS parameter set are used for transmission between the second device and the UPF network element The stream #A.
  • the first network element may determine the first candidate parameter set according to the QoS requirement of the data flow #A and the subscription information of the remote user equipment.
  • the subscription information of the remote user equipment may include the QoS parameters authorized to use, and may also include the correspondence between the QoS parameters of the Relay UE PDU session and the PC5 link QoS parameters.
  • the first network element may further determine the first candidate parameter set according to the QoS requirement of the data flow #A and the subscription information of the relay user equipment.
  • the subscription information of the relay user equipment may include authorized QoS parameters, and may also include the correspondence between the QoS parameters of the Relay UE PDU session and the PC5 link QoS parameters.
  • the first network element may further determine the first candidate parameter set according to the QoS requirement of the data flow #A and the subscription information of the remote user equipment and the relay user equipment.
  • the subscription information of the remote user equipment and the relay user equipment may include authorized QoS parameters.
  • the first network element may also generate and send the second candidate parameter set to the second network element.
  • the second candidate parameter set refers to an optional PC5 QoS parameter set (Alternative PC5 QoS parameter sets), including at least one PC5 QoS parameter set (PC5 QoS parameter set), and the second candidate parameter set is used to determine the target PC5 QoS parameter set, the QoS parameters in the target PC5 QoS parameter set are used to transmit data flow #A between the second device and the first device.
  • the first network element further sends a correspondence between the first QoS parameter set and the second QoS parameter set to the second network element, where the first QoS parameter set belongs to the first candidate parameter set, The second QoS parameter set belongs to the second candidate parameter set.
  • the second network element sends the candidate QoS configuration file to the RAN node according to the first candidate parameter set.
  • the second network element generates and sends alternative QoS profiles (Alternative QoS profiles, AQPs) according to the first set of alternative parameters, where the alternative QoS profiles refer to the fact that the second network element for the same QoS flow
  • alternative QoS profiles refer to the fact that the second network element for the same QoS flow
  • Multiple groups of QoS configuration files may be provided for the RAN, and any group of the multiple groups of QoS configuration files may be used to transmit the data flow between the relay user equipment and the user plane functional network element.
  • the second network element generates an alternative QoS configuration file for the data flow #A according to the first alternative parameter set.
  • each QoS configuration file in the candidate QoS configuration files is generated according to the QoS parameter set in the first candidate parameter set, and the QoS parameters in the QoS configuration file are the same as the QoS parameters in the QoS parameter set.
  • the second network element may be an SMF network element.
  • the second network element or the relay user equipment determines the PC5 QoS parameter.
  • the RAN node when the RAN node finds that the configuration file associated with the current QoS flow cannot be satisfied, it selects from the candidate QoS configuration file and sends the index information matching the candidate QoS configuration file to the second network element.
  • the second network element determines the PC5 QoS parameter according to the matching candidate QoS configuration file.
  • the second network element while receiving the first candidate parameter set from the first network element, the second network element also receives a second candidate parameter set, the QoS parameters in the first candidate parameter set and the first candidate parameter set
  • the QoS parameters in the two candidate parameter sets may have a one-to-one relationship, for example, the Nth QoS parameter in the first candidate parameter set corresponds to the Nth QoS parameter in the second candidate parameter set, and N may be the first candidate The number of QoS parameters in the parameter set.
  • the second network element determines the PC5 QoS parameters according to the second candidate parameter set and the matching candidate QoS configuration file.
  • the second network element determines the QoS parameter set in the first candidate parameter set corresponding to the matching candidate QoS configuration file, and then according to the QoS parameter set in the first candidate parameter set and the QoS parameter set in the second candidate parameter set
  • the set of QoS parameters determines the PC5 QoS parameters.
  • the second network element receives the correspondence between the QoS parameters in the first QoS parameter set and the QoS parameters in the second QoS parameter set sent from the first network element, and the first QoS parameter set belongs to the first QoS parameter set.
  • the candidate parameter set, the second QoS parameter set belongs to the second candidate parameter set.
  • the second network element determines the PC5 QoS parameter according to the corresponding relationship and the matching candidate QoS configuration file.
  • the second network element determines the QoS parameters of the corresponding Relay UE PDU session according to the matched candidate QoS configuration file, and further, the second network element determines the corresponding PC5 according to the QoS parameters of the Relay UE PDU session and the corresponding relationship QoS parameters.
  • PC5 QoS parameters can also be performed by the relay user equipment.
  • the relay user equipment determines the PC5 QoS according to the corresponding relationship.
  • the corresponding relationship may be the corresponding relationship between 5QI and PQI.
  • the first network element generates various candidate parameter sets or groups of parameter correspondences according to the QoS requirements of the data flow of the remote user equipment
  • the second network element generates the corresponding relationship between the various candidate parameter sets or groups according to the various candidate parameter sets or groups
  • the parameter correspondence can generate an alternative QoS configuration file
  • the RAN node selects and matches the alternative QoS configuration file from the alternative QoS configuration file according to the current data stream transmission requirements and sends it to the second network element.
  • the second network element or the middle The user equipment can determine the PC5 QoS parameters updated by the PC5 link according to the matching candidate QoS configuration file, thereby realizing the adjustment of the QoS configuration of the PC5 link and the Relay UE PDU session, and ensuring the end-to-end QoS requirements of the first device.
  • PC5 link may also be a PC5 connection.
  • the first device is used as an example of a Remote UE
  • the second device is used as an example of a Relay UE
  • the PCF is used as an example of the first network element
  • the SMF is used as an example of the second network element
  • the first device communicates with the network side through the second device.
  • the first network element may also be a UDM.
  • FIG. 4 is a schematic interaction diagram of a relay communication method provided by an embodiment of the present application.
  • the method 400 of FIG. 4 corresponds to the specific implementation steps of the method 300 of FIG. 3 .
  • the method shown in FIG. 4 may include steps S401-S412, and the steps S401-S412 will be described in detail below respectively.
  • the first device establishes a PC5 link with the second device, the second device establishes a PDU session, and completes the establishment of a data plane connection with a user plane functional network element.
  • the user plane function network element may be a UPF network element.
  • the process of establishing a connection between the first device and the network side is mainly divided into two parts, one is establishing a PC5 link between the first device and the second device, and the other is establishing a PDU session by the second device.
  • the first device and the second device respectively obtain authorization information and communication parameter information from the network.
  • the authorization information specifically includes authorizing the first device and the second device as Remote UE and Relay UE respectively, and the communication parameter information includes the PC5 QoS parameter authorized by the network for the communication between the first device and the second device, which can be used for the first device to communicate with the second device. QoS parameter configuration of the PC5 link between the second devices.
  • the second device establishes a PDU session.
  • the session management function network element SMF assigns an address #1 to the second device, which is used for the second device to perform uplink and downlink data transmission with the UPF.
  • Address #1 may be an IP address, a MAC address, and the like.
  • the first device establishes a PC5 link with the second device.
  • the second device and the first device discover each other and establish a PC5 link, and the second device will assign the first device IP address #2 for PC5 communication, and the second device will also assign the first device an IP address #2 for network-side communication Address #3, the second device can forward uplink or downlink data for the first device according to the address #3, thereby realizing data transmission between the first device and the UPF, and ensuring the communication between the first device and the network side.
  • the address #3 may be an IP address, or may be an IP address and a port number.
  • the second device reports information #A to the PCF.
  • This step includes the second device sending information #A to the SMF, and the SMF sending the information #A to the PCF.
  • the second device may send the information #A through the Remote UE Report message, and the SMF sends the information #A to the PCF through the session management policy negotiation process.
  • the information #A includes: identification information of the first device and address #3 of the first device.
  • the identification information of the first device may be a Subscription Concealed Identifier (SUCI), a User Permanent Identifier (SUPI), a Generic Public Subscription Identifier (GPSI) or an application layer identifier (APP layer ID).
  • SUCI Subscription Concealed Identifier
  • SUPI User Permanent Identifier
  • GPSI Generic Public Subscription Identifier
  • APP layer ID application layer identifier
  • the address #3 of the first device can be understood as address information used by the first device to transmit data, that is, data flow information of the first device.
  • the PCF acquires the information #A, and stores the information #A.
  • the PCF acquires information #B.
  • the PCF can obtain the information #B from the application function network element AF.
  • the information #B includes the UE address (UE address) of the first device, the AF identifier (AF Identifier), the data flow description (Flow description), the QoS requirement (QoS reference), and the identification information of the first device.
  • the UE address may be an IP address or a MAC address.
  • the data flow description can be in the form of a triple (destination IP address, destination port and transport layer protocol) or a five-tuple (source IP address, source port, destination IP address, destination port and transport layer protocol).
  • the data flow corresponding to the data flow description is recorded as service data flow #A.
  • PCF obtains information #B, which can also be understood as PCF obtaining information #B of service data flow #A.
  • the QoS requirements may include delay parameters, rate, priority, reliability, and the like.
  • AF first sends a QoS AF session creation request message to NEF, the request message includes information #B, and NEF further sends a policy authorization creation request message to PCF, which carries information # B.
  • the AF can interact with the first device through the application layer to obtain information #B, thereby obtaining information #B.
  • the embodiment of this application only provides an example of obtaining information #B, and other methods may be used to obtain information #B during specific implementation. , which does not affect the implementation of other steps, can all be applied to the embodiments of the present application, which are not limited in the present application.
  • the PCF determines the first candidate parameter set for the data stream #A of the first device according to the information #B.
  • the first candidate parameter set refers to an optional QoS parameter set (Alternative QoS parameter sets), including at least one OoS parameter set (QoS parameter set), and the first candidate parameter set is used to determine the target QoS parameter set,
  • the QoS parameters in the target QoS parameter set are used to transmit the data flow #A between the second device and the UPF network element.
  • the QoS parameter set may specifically include: 5G QoS indicator (5QI), packet delay budget (Packet Delay Budget), uplink guaranteed bit rate (UL-guaranteed bitrate), downlink guaranteed bit rate (DL-guaranteed bitrate) bitrate), packet error rate and other QoS parameters.
  • 5G QoS indicator 5G QoS indicator
  • Packet Delay Budget packet delay budget
  • uplink guaranteed bit rate UL-guaranteed bitrate
  • DL-guaranteed bitrate downlink guaranteed bit rate
  • packet error rate and other QoS parameters.
  • the PCF determines the first candidate parameter set according to the QoS requirements of the data flow #A in the information #B and the information of the first device.
  • the information of the first device may be address #3 information of the first device.
  • the data stream corresponding to the data stream #A is described as the data stream of the first device
  • the first device is the remote user equipment
  • the PCF network element determines that the data stream #A is the data stream of the remote user equipment, and then The first candidate parameter set is determined for the remote user equipment according to the QoS requirement of the data flow #A.
  • the PCF determines that the data flow #A is the data flow of the remote user equipment according to the data flow description corresponding to the data flow #A is the same as the address #3 of the first device in the information #A, and then according to the QoS of the data flow #A
  • the requirement is to determine a first set of candidate parameters for the remote user equipment.
  • the data stream description corresponding to data stream #A is the same as the address #3 of the first device in information #A. It can be understood that any information in the data stream description is the same as the corresponding information in address #3 of the first device, such as the data stream description.
  • the middle source address is the same as the source address in address #3 of the first device.
  • the PCF may determine the first candidate parameter set according to the QoS requirement of the data flow #A and the subscription information of the first device, wherein the subscription information of the first device may include the authorized use
  • the QoS parameter may also be the corresponding relationship between the QoS parameter of the Relay UE PDU session and the PC5 link QoS parameter.
  • the PCF may determine the first candidate parameter set in combination with the QoS requirements of the data flow #A and the authorized QoS parameters or the corresponding relationship.
  • the PCF can determine that the first device The delay parameters in the candidate parameter set are 4ms, 5ms, and 6ms, respectively.
  • the delay parameter requirement in the QoS requirement of data flow #A in information #B is 10ms
  • the correspondence between the QoS parameter of the Relay UE PDU session included in the subscription information of the first device and the QoS parameter of the PC5 link is (4ms). , 6ms), (5ms, 5ms), (6ms, 4ms), then the PCF can determine that the delay parameters in the first candidate parameter set are 4ms, 5ms, and 6ms, respectively.
  • the PCF may determine the first candidate parameter set according to the QoS requirement of the data flow #A and the subscription information of the second device, wherein the subscription information of the second device may include authorized use QoS parameters or the correspondence between the QoS parameters of the Relay UE PDU session and the PC5 link QoS parameters.
  • the PCF may determine the first candidate parameter set in combination with the QoS requirements of the data flow #A and the authorized QoS parameters or the corresponding relationship.
  • the delay parameter requirement in the QoS requirement of data flow #A in information #B is 10ms
  • the subscription information of the second device includes the authorized use delay QoS parameters of 4ms, 5ms and 6ms
  • the PCF can determine the first
  • the delay parameters in the candidate parameter set are 4ms, 5ms, and 6ms, respectively.
  • the delay parameter requirement in the QoS requirement of data flow #A in information #B is 10ms
  • the corresponding relationship between the QoS parameter of the Relay UE PDU session included in the subscription information of the second device and the QoS parameter of the PC5 link is (4ms).
  • 6ms) 5ms, 5ms
  • the PCF can determine that the delay parameters in the first candidate parameter set are 4ms, 5ms, and 6ms, respectively.
  • the PCF may determine the first candidate parameter set according to the QoS requirements of data flow #A and the subscription information of the first device and the second device, and the PCF may combine the QoS requirements of data flow #A with And, the QoS parameters authorized to be used by the first device and the second device determine the first candidate parameter set.
  • the delay parameter requirement in the QoS requirement of data flow #A in information #B is 10ms
  • the subscription information of the first device includes the authorized delay QoS parameters of 4ms, 6ms, 8ms and 12ms
  • the subscription of the second device includes the authorized delay QoS parameters of 3ms, 4ms, 6ms and 12ms
  • the PCF can take the intersection parameter information of the delay QoS parameters authorized to use by the first device and the second device, that is, 4ms, 6ms and 12ms.
  • PCF The delay parameters in the first candidate parameter set can be determined to be 4ms and 6ms, respectively, in combination with the QoS requirements of the data flow #A and the intersection parameter information.
  • the delay parameter requirement in the QoS requirement of data flow #A in information #B is 10ms
  • the subscription information of the first device includes the authorized use delay QoS parameters of 4ms, 6ms, 8ms and 12ms
  • the second device's The subscription information includes the authorized delay QoS parameters of 3ms, 4ms, 6ms and 12ms.
  • the PCF can determine the delay QoS parameters of the Relay UE PDU session as 3ms, 4ms and 6ms according to the subscription information of the second device.
  • the subscription information of a device determines that the PC5 delay QoS parameters are 4ms, 6ms, and 8ms.
  • the delay parameters in the first candidate parameter set that meet the delay requirements are determined as: 4ms, 6ms, respectively.
  • the PCF may also identify its preferred set of QoS parameters.
  • the PCF may also generate a second set of candidate parameters.
  • the second candidate parameter set refers to an optional PC5 QoS parameter set (Alternative PC5 QoS parameter sets), including at least one PC5 QoS parameter set (PC5 QoS parameter set), and the second candidate parameter set is used to determine the target PC5 QoS parameter set, the QoS parameters in the target PC5 QoS parameter set are used to transmit data flow #A between the second device and the first device.
  • the PC5OoS parameter set may specifically include: PC5 5G QoS Indicator (PQI), Packet Delay Budget (Packet Delay Budget), Uplink Guaranteed Bit Rate (UL-guaranteed bitrate), Downlink Guaranteed Bit Rate (DL- guaranteed bitrate), packet error rate and other QoS parameters.
  • PQI PC5 5G QoS Indicator
  • Packet Delay Budget Packet Delay Budget
  • Uplink Guaranteed Bit Rate UL-guaranteed bitrate
  • DL- guaranteed bitrate Downlink Guaranteed Bit Rate
  • packet error rate and other QoS parameters.
  • each PC5 QoS parameter set in the second candidate parameter set corresponds to each QoS parameter set in the first candidate parameter set.
  • the PCF determines the second candidate parameter set according to the QoS requirements of the data flow #A in the information #B and the identification information of the first device.
  • the data stream #A is the data stream of the first device
  • the first device is the remote user equipment
  • the PCF network element determines that the data stream #A is the remote user equipment according to the identification information of the remote user equipment. data flow, and then determine a second candidate parameter set for the remote user equipment according to the QoS requirement of data flow #A.
  • the PCF may determine the second candidate parameter set according to the QoS requirement of the data flow #A and the subscription information of the first device, wherein the subscription information of the first device may include authorized use
  • the QoS parameter may also be the corresponding relationship between the QoS parameter of the Relay UE PDU session and the PC5 link QoS parameter.
  • the PCF may determine the second candidate parameter set in combination with the QoS requirements of the data flow #A and the authorized QoS parameters or the corresponding relationship.
  • the delay parameter requirement in the QoS requirement of data flow #A in information #B is 10ms
  • the subscription information of the first device includes the authorized delay QoS parameters of 4ms, 5ms and 6ms
  • the PCF can determine the second The delay parameters in the candidate parameter set are 6ms, 5ms, and 4ms, respectively.
  • the delay parameter requirement in the QoS requirement of data flow #A in information #B is 10ms
  • the correspondence between the QoS parameter of the Relay UE PDU session included in the subscription information of the first device and the QoS parameter of the PC5 link is (4ms).
  • the PCF can determine that the delay parameters in the second candidate parameter set are 6ms, 5ms, and 4ms, respectively.
  • the PCF may determine the second candidate parameter set according to the QoS requirement of the data flow #A and the subscription information of the second device, wherein the subscription information of the second device may include the authorized use Correspondence between QoS parameters or QoS parameters of Relay UE PDU sessions and PC5 link QoS parameters.
  • the PCF may determine the second candidate parameter set in combination with the QoS requirements of the data flow #A and the authorized QoS parameters or the corresponding relationship.
  • the PCF can determine the second device.
  • the delay parameters in the candidate parameter set are 6ms, 5ms, and 4ms, respectively.
  • the delay parameter requirement in the QoS requirement of data flow #A in information #B is 10ms
  • the corresponding relationship between the QoS parameter of the Relay UE PDU session included in the subscription information of the second device and the QoS parameter of the PC5 link is (4ms).
  • the PCF can determine that the delay parameters in the second candidate parameter set are 6ms, 5ms, and 4ms, respectively.
  • the PCF may determine the second candidate parameter set according to the QoS requirements of the data flow #A and the subscription information of the first device and the second device, and the PCF may combine the QoS requirements of the data flow #A with the The QoS requirements and the QoS parameters authorized to be used by the first device and the second device determine the second candidate parameter set.
  • the delay parameter requirement in the QoS requirement of data flow #A in information #B is 10ms
  • the subscription information of the first device includes the authorized delay QoS parameters of 4ms, 6ms, 8ms and 12ms
  • the subscription of the second device includes the authorized delay QoS parameters of 3ms, 4ms, 6ms and 12ms
  • the PCF can take the intersection parameter information of the delay QoS parameters authorized to use by the first device and the second device, that is, 4ms, 6ms and 12ms.
  • PCF The delay parameters in the second candidate parameter set can be determined to be 6ms and 4ms, respectively, in combination with the QoS requirements of the data flow #A and the intersection parameter information.
  • the delay parameter requirement in the QoS requirement of data flow #A in information #B is 10ms
  • the subscription information of the first device includes the authorized use delay QoS parameters of 4ms, 6ms, 8ms and 12ms
  • the second device's The subscription information includes the authorized delay QoS parameters of 3ms, 4ms, 6ms and 12ms.
  • the PCF can determine the delay QoS parameters of the Relay UE PDU session as 3ms, 4ms and 6ms according to the subscription information of the second device.
  • the subscription information of the device determines that the PC5 delay QoS parameters are 4ms, 6ms, and 8ms.
  • the delay parameters in the second candidate parameter set that meet the delay requirements are determined to be: 6ms, 4ms, respectively.
  • the PCF determines the second candidate parameter set according to the first candidate parameter set.
  • the delay parameter requirement in the QoS requirement of data flow #A in information #B is 10ms
  • the PCF needs to split the delay of the PC5 link and the Relay UE PDU session according to the end-to-end delay requirement of 10ms, the delay of the PC5 link
  • the delay is xms
  • the delay of the Relay UE PDU session is x'ms, where x ⁇ 0 and x' ⁇ 0.
  • the delay of the PC5 link and the delay of the Relay UE PDU session need to satisfy: x+x' ⁇ 10ms.
  • the PCF generates the second candidate parameter set. Specifically, for example, if the delays in the first candidate parameter set generated by the PCF are 6ms, 7ms and 8ms, the PCF splits the delay of the PC5 link according to the delay requirement of 10ms
  • the delay of the session with the Relay UE PDU that is, the PC5 link delay x 1 ⁇ 4ms, x 2 ⁇ 3ms, x 3 ⁇ 2ms. That is to say, the second candidate parameter set is that the medium delays are x 1 , x 2 , and x 3 .
  • the delay of the PC5 link refers to the delay of transmitting data stream #A between the first device and the second device
  • the delay of the Relay UE PDU session refers to the transmission delay between the second device and the UPF. Latency of data stream #A.
  • the PCF sends the information #C to the SMF in the session management policy negotiation process.
  • the PCF may generate two kinds of information, and the PCF sends the information #C into two cases:
  • the PCF sends information #C to the SMF, where the information #C includes the first candidate parameter set, the QoS notification control message and the data flow #A information of the first device.
  • the PCF generates PCC rules according to the service requirements requested by the AF and sends them to the SMF.
  • the information #C can be placed in the PCC rules, that is, the PCF can send the first candidate parameter set, the QoS notification control message and the first device's Data stream #A is sent in PCC rules.
  • the information #C includes the first candidate parameter set, the second candidate parameter set, the QoS notification control message and the data flow #A information of the first device.
  • the specific sending method is the same as that of Case 1.
  • the PCF may also send the correspondence between the first parameter set and the second parameter set to the SMF, or send the correspondence between the QoS parameters in the first parameter set and the QoS parameters in the second parameter set, For example, send the correspondence between parameter sets (x 1 , x 2 , x 3 ) and parameter sets (x 1 ', x 2 ', x 3 '), where x 1 and x 1 ' correspond, and x 2 and x 2 'corresponding, x 3 and x 3 ' correspond.
  • the correspondence between the 5QI in the first parameter set and the PQI in the second parameter set is sent, and the correspondence can be understood as the correspondence of specific parameters, for example, x 1 and x 1 ′ satisfy the total delay requirement.
  • the first parameter set is one of the first candidate parameter sets
  • the second parameter set is one of the second candidate parameter sets.
  • the SMF receives the information #C, and stores the information #C.
  • the SMF generates an alternative QoS profile (Alternative QoS profiles, AQPs) according to the information #C.
  • the alternative QoS profile refers to that SMF can provide multiple sets of QoS profiles for the RAN for the same QoS flow, and any one of the multiple sets of QoS profiles can be used to relay user equipment and user plane functional network elements The data stream is transmitted between them.
  • the candidate QoS configuration file includes at least one QoS configuration file
  • the QoS configuration file in the candidate QoS configuration file corresponds to the QoS parameter set in the first candidate parameter set.
  • the specific QoS parameters in each QoS profile are: 5QI (5G QoS Identifier, 5G QoS indicator), ARP (Allocation and Retention Priority, allocation retention priority), GFBR (Guaranteed Flow Bit Rate, guaranteed stream bit rate) and MFBR (Maximum Flow Bit Rate), optionally including QNC (QoS Notification Control, QoS Notification Control) or 5QI, ARP; optionally including RQA (Reflective QoS Attribute, reverse QoS attribute). It is consistent with the specific content of the configuration file in the prior art.
  • the SMF generates or modifies QoS flow #1 for the PDU session according to the PCC rules obtained from the PCF.
  • QoS flow #1 is associated with an alternate QoS profile. Associate the data flow #A with the corresponding QoS flow #1, and the identifier of the QoS flow #1 is QFI#1 (QoS Flow Identifier, QFI).
  • each PDU session can establish one or more QoS flows, and each QoS flow is identified by a QFI (QoS Flow Identifier, QoS Flow Identifier) , QFI uniquely identifies a QoS flow in a session.
  • QFI QoS Flow Identifier
  • QoS flow can carry multiple service data flows with the same QoS requirements.
  • the information #C includes a first candidate parameter set
  • the SMF generates an alternative QoS configuration file for the data flow #A according to the first candidate parameter set.
  • each QoS configuration file in the candidate QoS configuration files is generated according to the QoS parameter set in the first candidate parameter set, and the QoS parameters in the QoS configuration file are the same as the QoS parameters in the QoS parameter set.
  • the first candidate parameter set includes three parameter sets, respectively: (x 1 , y 1 , z 1 ), (x 2 , y 2 , z 2 ), (x 3 , y 3 , z 3 ), Among them, x 1 , x 2 , and x 3 are three QoS parameters that meet the requirements of parameter x, y 1 , y 2 , and y 3 are three QoS parameters that meet the requirements of parameter y, and z 1 , z 2 , and z 3 are parameters that meet the requirements
  • the three QoS parameters required by z, x, y, and z are three different QoS parameter requirements respectively, and x, y, and z are greater than or equal to 0.
  • SMF can generate three QoS profiles according to the three parameter sets, which are: (x 1 , y 1 , z 1 ), (x 2 , y 2 , z 2 ), (x 3 , y 3 , z 3 ) .
  • the QoS parameter may be a delay parameter, a rate, a priority, etc., which are not limited in this embodiment of the present application.
  • the SMF sends information #D to the RAN.
  • This information #D includes an alternate QoS profile, QFI #1 and notification control messages.
  • This information #D is used to inform the RAN of the alternative QoS profile associated with QoS flow #1.
  • the notification control message is used to instruct the RAN to enable the notification control mechanism, send a notification message to the SMF, and inform the SMF of the current Supported QoS profile information or better profile information.
  • the RAN can judge whether the current configuration file cannot be guaranteed or the preferred configuration file can be determined according to the QoS requirements and the current data transmission situation.
  • the more preferred configuration file can be understood as the QoS parameters satisfied by the current Relay UE PDU session may be better than the QoS parameters of the currently associated configuration file, for example, the delay of the configuration file associated with the current QoS flow #1 Relay UE PDU session The parameter is 6ms, but the RAN detects that the current QoS flow can meet the delay parameter of 4ms. In this case, the RAN will also notify the control mechanism, send a notification message to the SMF, and inform the SMF of the currently supported better configuration file information.
  • the RAN sends the information #E to the SMF according to the information #D.
  • the RAN When the RAN finds that the configuration file associated with the current QoS flow #1 cannot be satisfied or has a more preferred configuration file, it sends the supported QoS configuration file information or the index information of the better configuration file information. Therefore, the information #E includes the notification message, the index information matching the alternative QoS profile.
  • the matching candidate QoS profile is the QoS profile satisfied by the RAN
  • the QoS profile satisfied by the RAN refers to that the RAN selects from the candidate QoS profile for QoS flow #1 to satisfy the current second device and the UPF.
  • the QoS profile of traffic #A is transmitted between.
  • the matching candidate QoS profile corresponds to a parameter set in the first candidate parameter set.
  • the SMF determines the PC5 QoS parameters of the current PC5 link according to the information #E.
  • the PC5 QoS parameter is used to transmit data stream #A between the second device relay and the first device.
  • the SMF receives the second candidate parameter set sent from the PCF, and determines the PC5 QoS parameters according to the second candidate parameter set and the matching candidate QoS configuration file.
  • the second network element while receiving the first candidate parameter set from the first network element, the second network element also receives a second candidate parameter set sent from the first network element.
  • the QoS parameters in the parameter set and the QoS parameters in the second candidate parameter set may have a one-to-one relationship, for example, the Nth QoS parameter in the first candidate parameter set corresponds to the Nth QoS parameter in the second candidate parameter set, N may be the number of QoS parameters in the first candidate parameter set.
  • the second network element determines the PC5 QoS parameters according to the second candidate parameter set and the matching candidate QoS configuration file.
  • the second network element determines the QoS parameter set in the first candidate parameter set corresponding to the matching candidate QoS configuration file, and then according to the QoS parameter set in the first candidate parameter set and the QoS parameter set in the second candidate parameter set
  • the set of QoS parameters determines the PC5 QoS parameters.
  • the SMF receives the correspondence between the first QoS parameter set and the second QoS parameter set sent from the PCF, where the first QoS parameter set belongs to the first candidate parameter set, and the second QoS parameter set belongs to the first QoS parameter set.
  • Two alternative parameter sets. SMF can determine the target PC5 QoS parameter set according to the corresponding relationship and the second candidate parameter set, the target PC5 QoS parameter set includes the PC5 QoS parameter, and further determine the PC5 according to the target PC5 QoS parameter set and the matching candidate QoS configuration file. QoS parameters.
  • the SMF receives the correspondence between the QoS parameters in the first QoS parameter set and the QoS parameters in the second QoS parameter set sent from the PCF, and the SMF determines the PC5 according to the correspondence and the matching candidate QoS configuration file QoS parameters.
  • the second candidate parameter set received by SMF from PCF is: (x 1 ', y 1 ', z 1 '), (x 2 ', y 2 ', z 2 '), (x 3 ', y 3 ', z 3 '),
  • the matching candidate QoS configuration file is (x 2 , y 2 , z 2 )
  • the target PC5 QoS parameter set can be determined to be (x 2 ', y 2 ', z 2 ')
  • the first The correspondence between the QoS parameter set and the second QoS parameter set is (x 1 , y 1 , z 1 ) and (x 1 ', y 1 ', z 1 '), and PC5 QoS parameters can be determined in combination with the correspondence.
  • the SMF may determine the target PC5 QoS parameter set according to the preconfigured correspondence between the first QoS parameter set and the second QoS parameter set, and the second candidate parameter set, the target PC5 QoS parameter set
  • the set contains the PC5 QoS parameters, and the PC5 QoS parameters are further determined according to the target PC5 QoS parameter set and the matching candidate QoS profile.
  • the SMF determines the PC5 QoS parameters according to the pre-configured correspondence between the first QoS parameter set and the second QoS parameter set and matching the candidate QoS configuration file.
  • the SMF can determine the matching candidate QoS configuration file according to the index information of the matching candidate QoS configuration file in the information #E. It should be noted that, when the matching candidate QoS profile indicated by the indication information #A includes a better profile, the SMF may not perform the step of determining the PQI. In this case, the current QoS flow #1 can better satisfy the QoS parameters of the Relay UE PDU session. For example, the delay parameter can be increased from the current 6ms to 4ms, the delay requirement of QoS flow #1 is 10ms, and the corresponding PC5 QoS The parameters may not be adjusted. For example, the delay parameter of the PC5 link is currently 4ms, which still meets the total delay requirement without adjustment.
  • this step is optional. If the corresponding relationship between the QoS parameters in the first QoS parameter set and the PC5 QoS parameters in the second QoS parameter set has been configured on the second device, and the PC5 QoS parameters are determined by the second device according to the corresponding relationship, SMF does not need to perform this step.
  • the corresponding relationship may be the corresponding relationship between 5QI and PQI.
  • S410 the SMF sends information #F to the second device.
  • the SMF sends the information #F to the second device through the NAS message of the AMF.
  • Information #F is used to indicate the QoS parameters satisfied by the current Relay UE PDU session of the second device.
  • the information #F includes: the QoS parameter matching the candidate QoS profile and the identifier QFI#1 of the QoS flow #1, wherein the QoS parameter satisfied by the Relay UE PDU session may be 5QI#1.
  • information #F also includes PC5 QoS parameters, such as PQI.
  • the SMF can determine whether PC5 QoS parameters need to be included in message #F. Specifically, the SMF judges according to whether the second device is pre-configured or the network is authorized to configure the corresponding relationship between the QoS parameters in the first QoS parameter set and the QoS parameters in the second QoS parameter set. If configured, the PC5 QoS parameters are not included in the message #F; if not configured, the PC5 QoS parameters are included in the message #F.
  • the second device determines the PC5 QoS parameter according to the information #F.
  • the second device determines the QoS parameter according to the information #F, and further determines the QoS parameter according to the corresponding relationship between the QoS parameter in the first QoS parameter set and the QoS parameter in the second QoS parameter set.
  • PC5 QoS parameters The corresponding relationship may be pre-configured on the second device or acquired from the network, and may specifically be the corresponding relationship between 5QI and PQI.
  • the second device determines the PQI according to the 5QI information and the corresponding relationship in the information #F.
  • this step is an optional step, and is executed when the PC5 QoS parameter is not included in the information #F.
  • the second device sends request information to the first device.
  • the request message includes PC5 QoS flow information and PC5 QoS parameters, eg, PFI#1 and PQI#1.
  • the request message is used to request the first device to modify the PC5 QoS parameters corresponding to the PC5 QoS flow in the current PC5 link, and realize the adjustment of the PC5 QoS parameters through the PC5 link modification process.
  • the request message may be a link modification request message.
  • the PCF generates a first candidate parameter set for the data flow #A of the first device according to the QoS request provided by the AF, and the SMF generates a variety of backup parameters for the data flow #A according to the candidate parameter set.
  • the SMF obtains the current Relay UE PDU session from the RAN to match the alternative QoS configuration file, and then the SMF or the second device determines the PC5 QoS parameters updated by the PC5 link according to the matching configuration file, and then realizes the adjustment of the PC5 link.
  • the QoS configuration of the session with the Relay UE PDU ensures the end-to-end QoS requirements of the first device.
  • FIG. 5 is another schematic block diagram of a relay communication method provided by an embodiment of the present application.
  • the method 500 may include the following steps:
  • the first network element acquires the QoS requirement of the data flow #A of the remote user equipment.
  • the first network element may obtain the QoS requirements of the remote user equipment from the application function network element AF, and the QoS requirements may include delay parameters, rate, priority, reliability, etc., and the corresponding data flow #A Flow description.
  • the data flow description can be in the form of triples (destination IP address, destination port and transport layer protocol) or quintuple (source IP address, source port, destination IP address, destination port and transport layer protocol).
  • the first network element may also acquire the UE address (UE address) of the remote user equipment, the AF identifier (AF Identifier), and the identification information of the user equipment.
  • UE address UE address
  • AF identifier AF Identifier
  • the application function network element AF can acquire the QoS requirement and other information by interacting with the remote user equipment on the service requirement.
  • the first network element may be a PCF network element or a UDM network element.
  • the first network element generates the corresponding relationship between multiple groups of PC5 QoS parameters and the QoS parameters of the Relay UE PDU session for the data flow #A according to the QoS requirement, and sends it to the second network element.
  • the first network element determines the correspondence between multiple groups of PC5 QoS parameters and the QoS parameters of the Relay UE PDU session according to the QoS requirements and the identification information of the remote user equipment, wherein the multiple groups of correspondence may include the first correspondence and
  • the second correspondence relationship includes the correspondence between the first QoS parameter and the second QoS parameter, and the second correspondence relationship includes the correspondence between the third QoS parameter and the fourth QoS parameter.
  • the first QoS parameter and the third QoS parameter refer to PC5 QoS parameters, which are used to transmit data stream #A between the remote user equipment and the relay user equipment
  • the second QoS parameter and the fourth QoS parameter refer to is the QoS parameter corresponding to the PDU session of the Relay UE, which is used to transmit the data stream #A between the relay user equipment and the user plane function network element.
  • the first network element may determine the correspondence between the multiple groups of PC5 QoS parameters and the QoS parameters of the Relay UE PDU session according to the QoS requirements of the data flow #A and the subscription information of the remote user equipment .
  • the subscription information of the remote user equipment may include the authorized QoS parameters, and may also include the correspondence between the QoS parameters of the Relay UE PDU session and the PC5 link QoS parameters.
  • the first network element may also determine the correspondence between the multiple groups of PC5 QoS parameters and the QoS parameters of the Relay UE PDU session according to the QoS requirements of the data flow #A and the subscription information of the relay user equipment .
  • the subscription information of the relay user equipment may include authorized QoS parameters, and may also include the correspondence between the QoS parameters of the Relay UE PDU session and the PC5 link QoS parameters.
  • the first network element may also determine the multiple groups of PC5 QoS parameters and Relay UE PDU sessions according to the QoS requirements of the data flow #A and the subscription information of the remote user equipment and the relay user equipment. Correspondence of QoS parameters.
  • the subscription information of the remote user equipment and the relay user equipment may include authorized QoS parameters.
  • the first network element may also send indication information to the second network element according to the quality of service QoS requirement of the data flow #A, where the indication information is used to instruct the generation of an alternative QoS configuration file, the The candidate QoS configuration file is used by the RAN node to determine the matching candidate QoS configuration file, where the matching candidate QoS configuration file is the QoS configuration file satisfied by the RAN node.
  • the second network element sends the candidate QoS configuration file to the RAN node according to the corresponding relationship between the multiple groups of PC5 QoS parameters and the QoS parameters of the Relay UE PDU session.
  • the second network element includes the QoS parameters of the Relay UE PDU session (for example, the second parameter and the fourth parameter) according to the corresponding relationship between the multiple groups of PC5 QoS parameters and the QoS parameters of the Relay UE PDU session. , to generate an alternative QoS profile for data flow #A. Specifically, each QoS configuration file in the candidate QoS configuration file is generated according to the QoS parameters of the Relay UE PDU session included in the corresponding relationship between a set of PC5 QoS parameters and the QoS parameters of the Relay UE PDU session, and the QoS parameters in the QoS configuration file are generated. The same as the QoS parameters of the Relay UE PDU session in a set of correspondences.
  • the second network element generates for data flow #A according to the indication information and the QoS parameters of the Relay UE PDU session included in the corresponding relationship between the multiple groups of PC5 QoS parameters and the QoS parameters of the Relay UE PDU session.
  • Alternative QoS profiles Alternative QoS profiles.
  • the second network element may be an SMF network element.
  • the second network element or the relay user equipment determines the PC5 QoS parameter.
  • the RAN node when the RAN node finds that the configuration file associated with the current QoS flow cannot be satisfied, it selects from the candidate QoS configuration file and sends the index information matching the candidate QoS configuration file to the second network element.
  • the second network element determines the PC5 QoS parameter according to the matching candidate QoS configuration file.
  • the second network element determines the QoS parameter of the Relay UE PDU session according to the matching candidate QoS configuration file, and according to the QoS parameter of the Relay UE PDU session and the PC5 QoS parameter and the QoS of the Relay UE PDU session The correspondence of the parameters determines the PC5 QoS parameters.
  • PC5 QoS parameters can also be performed by the relay user equipment.
  • the relay user equipment determines the PC5 QoS according to the corresponding relationship.
  • the corresponding relationship may be the corresponding relationship between 5QI and PQI.
  • the first network element generates the corresponding relationship between the QoS parameters of multiple groups of Relay UE PDU sessions and the PC5 QoS parameters and the QoS parameters of the Relay UE PDU sessions according to the QoS requirements of the data flow of the remote user equipment
  • the second The network element may generate an alternative QoS configuration file according to the multiple sets of corresponding relationships
  • the RAN node selects and matches the alternative QoS configuration file from the alternative QoS configuration file according to the current data flow transmission requirement and sends it to the second network element
  • the first The second network element or the relay user equipment can determine the PC5 QoS parameters updated by the PC5 link according to the matching candidate QoS configuration file, and then adjust the QoS configuration of the PC5 link and the Relay UE PDU session to ensure the end-to-end of the first device. end QoS requirements.
  • PC5 link may also be a PC5 connection.
  • FIG. 6 is another schematic interaction diagram of a relay communication method provided by an embodiment of the present application.
  • the method 600 of FIG. 6 corresponds to the specific implementation steps of the method 500 of FIG. 5 .
  • the method shown in FIG. 6 may include steps S601-S611, and the steps S601-S611 will be described in detail below respectively.
  • S601-S603 are basically the same as steps S401-S403 of the method 400, and in order to avoid redundant description, repeated description is not repeated.
  • the PCF generates multiple sets of correspondences for the data stream #A of the first device according to the information #B.
  • the correspondence refers to the correspondence between the PC5 QoS parameters and the QoS parameters corresponding to the PDU session of the Relay UE.
  • the PCF generates a first correspondence relationship and a second correspondence relationship, where the first correspondence relationship includes the correspondence between the first QoS parameter and the second QoS parameter, and the second correspondence relationship includes the correspondence between the third QoS parameter and the fourth QoS parameter.
  • the first QoS parameter and the third QoS parameter refer to the PC5 QoS parameter, which is used to transmit the data stream #A between the second device and the first device
  • the second QoS parameter and the fourth QoS parameter refer to
  • the QoS parameter corresponding to the PDU session of the Relay UE is used to transmit the data stream #A between the second device and the user plane functional network element, and the second device forwards the data stream #A between the first device and the user plane functional network element .
  • the QoS parameter set may specifically include: 5G QoS indicator (5QI), packet delay budget (Packet Delay Budget), uplink guaranteed bit rate (UL-guaranteed bitrate), downlink guaranteed bit rate (DL-guaranteed bitrate) bitrate), packet error rate and other QoS parameters.
  • 5G QoS indicator 5G QoS indicator
  • Packet Delay Budget packet delay budget
  • uplink guaranteed bit rate UL-guaranteed bitrate
  • DL-guaranteed bitrate downlink guaranteed bit rate
  • packet error rate and other QoS parameters.
  • the second QoS parameter is different from the fourth QoS parameter, which means that the PCF generates two different sets of QoS parameters corresponding to the PDU sessions of the Relay UE according to the QoS requirements in the information #B.
  • the PCF determines multiple sets of correspondences according to the QoS requirements of the data flow #A in the information #B and the identification information of the first device.
  • the data stream #A is the data stream of the first device
  • the first device is the remote user equipment
  • the PCF network element determines that the data stream #A is the remote user equipment according to the identification information of the remote user equipment. data flow, and then determine multiple sets of corresponding relationships for the remote user equipment according to the QoS requirements of data flow #A.
  • the PCF may determine the multiple sets of correspondences according to the QoS requirements of the data flow #A and the subscription information of the first device, wherein the subscription information of the first device may include authorized QoS parameters for use , and can also be the correspondence between the Relay UE PDU session QoS parameters and the PC5 link QoS parameters.
  • the PCF may determine multiple sets of correspondences in combination with the QoS requirements of the data flow #A and the authorized QoS parameters or the correspondences.
  • the PCF may determine the corresponding relationship according to the QoS requirement of the data flow #A and the subscription information of the first device, wherein the subscription information of the first device includes the QoS parameters authorized to be used.
  • the PCF can determine multiple sets of correspondences in combination with the QoS requirements of the data flow #A and the QoS parameters authorized for use.
  • the PCF can determine multiple groups of The corresponding relationship is (4ms, 6ms), (5ms, 5ms), (6ms, 4ms).
  • the delay parameter requirement in the QoS requirement of data flow #A in information #B is 10ms
  • the correspondence between the Relay UE PDU session QoS parameter included in the subscription information of the first device and the PC5 link QoS parameter is (4ms, 6ms), (5ms, 5ms), (6ms, 4ms)
  • the PCF can determine multiple sets of corresponding relationships as (4ms, 6ms), (5ms, 5ms), (6ms, 4ms).
  • the PCF may determine multiple sets of correspondences according to the QoS requirements of the data flow #A and the subscription information of the second device, wherein the subscription information of the second device includes the authorized QoS parameters, It can also be the correspondence between Relay UE PDU session QoS parameters and PC5 link QoS parameters.
  • the PCF may determine multiple sets of correspondences in combination with the QoS requirements of the data flow #A and the authorized QoS parameters or the correspondences.
  • the delay parameter requirement in the QoS requirement of data flow #A in information #B is 10ms
  • the subscription information of the second device includes the authorized use delay QoS parameters of 4ms, 5ms and 6ms
  • the PCF can determine the corresponding The relationship is (4ms, 6ms), (5ms, 5ms), (6ms, 4ms).
  • the delay parameter requirement in the QoS requirement of data stream #A in information #B is 10ms
  • the correspondence between the Relay UE PDU session QoS parameter included in the subscription information of the second device and the PC5 link QoS parameter is (4ms, 6ms), (5ms, 5ms), (6ms, 4ms)
  • the PCF can determine multiple sets of corresponding relationships as (4ms, 6ms), (5ms, 5ms), (6ms, 4ms).
  • the PCF may determine multiple sets of correspondences according to the QoS requirements of the data flow #A and the subscription information of the first device and the second device, and the PCF may combine the QoS requirements of the data flow #A and, Multiple sets of corresponding relationships are determined for the QoS parameters authorized to be used by a device and a second device.
  • the delay parameter requirement in the QoS requirement of data flow #A in information #B is 10ms
  • the subscription information of the first device includes the authorized delay QoS parameters of 4ms, 6ms, 8ms and 12ms
  • the subscription of the second device includes the authorized delay QoS parameters of 3ms, 4ms, 6ms and 12ms.
  • the PCF can take the intersection parameter information of the delay QoS parameters authorized to use by the first device and the second device, that is, 4ms, 6ms and 12ms. PCF According to the QoS requirement of the data flow #A and the intersection parameter information, it can be determined that the corresponding relationships of the multiple groups are (4ms, 6ms) and (6ms, 4ms) respectively.
  • the delay parameter requirement in the QoS requirement of data flow #A in information #B is 10ms
  • the subscription information of the first device includes the authorized use delay QoS parameters of 4ms, 6ms, 8ms and 12ms
  • the second device's The subscription information includes the authorized delay QoS parameters of 3ms, 4ms, 6ms and 12ms.
  • the PCF can determine the delay QoS parameters of the Relay UE PDU session as 3ms, 4ms and 6ms according to the subscription information of the second device.
  • the contract information of the device determines that the PC5 delay QoS parameters are 4ms, 6ms, and 8ms. Combined with the delay parameter requirements, it is determined that the corresponding relationships of multiple groups to meet the delay requirements are: (4ms, 6ms), (6ms, 4ms).
  • the PCF may also generate indication information according to the information #B, where the indication information is used to instruct the SMF to generate an alternative QoS configuration file according to the information #B.
  • the alternative QoS profile refers to that SMF can provide multiple sets of QoS profiles for the RAN for the same QoS flow, and any one of the multiple sets of QoS profiles can be used to relay user equipment to relay user equipment and users
  • the data stream is transmitted between the plane functional network elements.
  • the candidate QoS configuration file includes at least one QoS configuration file
  • the QoS configuration file in the candidate QoS configuration file corresponds to the QoS parameter set in the first candidate parameter set.
  • the specific QoS parameters of each QoS profile are: 5QI (5G QoS Identifier, 5G QoS indicator), ARP (Allocation and Retention Priority, allocation retention priority), GFBR (Guaranteed Flow Bit Rate, guaranteed stream bit rate) and MFBR (Maximum Flow Bit Rate), optionally including QNC (QoS Notification Control, QoS Notification Control) or 5QI, ARP; optionally including RQA (Reflective QoS Attribute, reverse QoS attribute). It is consistent with the specific content of the configuration file in the prior art.
  • the second network element generates an alternative QoS configuration for data flow #A according to the QoS parameters of the Relay UE PDU session included in the corresponding relationship between the multiple sets of PC5 QoS parameters and the QoS parameters of the Relay UE PDU session document.
  • each QoS configuration file in the candidate QoS configuration file is generated according to the QoS parameters of the Relay UE PDU session included in the corresponding relationship between a set of PC5 QoS parameters and the QoS parameters of the Relay UE PDU session, and the QoS parameters in the QoS configuration file are generated.
  • the PCF sends the indication information.
  • the PCF sends the information #G to the SMF.
  • Information #G includes information of data flow #A, multiple sets of correspondence and QoS notification control messages.
  • the PCF generates PCC rules according to the service requirements requested by the AF and sends them to the SMF.
  • the information #G can be placed in the PCC rules, that is, the PCF can place the corresponding relationship, QoS notification control message and data flow #A information in Sent in PCC rules.
  • the information #G may further include indication information.
  • the SMF generates an alternative QoS profile (Alternative QoS profiles, AQPs) for the data flow #A of the first device according to the information #G, and sends it to the RAN.
  • an alternative QoS profile Alternative QoS profiles, AQPs
  • the SMF generates or modifies QoS flow #1 for the PDU session according to the PCC rules obtained from the PCF.
  • QoS flow #1 associates data flow #A with the corresponding QoS flow #1, and the identifier of this QoS flow #1 is QFI #1 (QoS Flow Identifier, QFI).
  • the SMF generates an alternative QoS configuration file for the data flow #A of the first device according to the information #G. Specifically, the SMF generates the QoS parameters of the PDU session of the second device (for example, the second device according to the multiple sets of corresponding relationships in the information #G) parameter and fourth parameter) to generate an alternative QoS profile for data flow #A.
  • the SMF may generate alternative QoS configuration files according to the QoS parameters of the PDU session of the second device, which are respectively: x 1 ' and x 2 '.
  • the QoS parameter may be a delay parameter, a rate, a priority, etc., which are not limited in this embodiment of the present application.
  • the information #G includes indication information
  • the SMF generates an alternative QoS configuration file for the data flow #A according to the indication information and the corresponding relationship.
  • the SMF sends information #D to the RAN.
  • This information #D includes an alternate QoS profile, QFI #1 and notification control messages.
  • This information #D is used to inform the RAN of the alternative QoS profile associated with QoS flow #1.
  • the notification control message is used to instruct the RAN to enable the notification control mechanism, send a notification message to the SMF, and inform the SMF of the current Supported QoS profile information or better profile information.
  • the RAN can judge whether the current configuration file cannot be guaranteed or the preferred configuration file can be determined according to the QoS requirements and the current data transmission situation.
  • the more preferred configuration file can be understood as the QoS parameters satisfied by the QoS flow #1 of the current Relay UE PDU session can be better than the QoS parameters of the currently associated configuration file, for example, the configuration associated with the QoS flow #1 of the current Relay UE PDU session
  • the delay parameter of the file is 6ms, but the RAN detects that the delay parameter that can be satisfied by the current QoS flow is 4ms. In this case, the RAN will also notify the control mechanism, send a notification message to the SMF, and inform the SMF of the currently supported Better configuration file information.
  • the RAN sends the information #E to the SMF according to the information #D.
  • the RAN finds that the profile associated with the current QoS flow #1 cannot be satisfied or has a more preferred profile, it selects and sends the supported QoS profile information or a better profile from the alternative QoS profiles in message #D Information index information. Therefore, the information #E includes notification messages, index information matching alternative QoS profiles (including supported profile information or better profile information).
  • the matching candidate QoS profile is the QoS profile satisfied by the RAN
  • the QoS profile satisfied by the RAN refers to that the RAN selects from the candidate QoS profile for QoS flow #1 to satisfy the current second device and the UPF.
  • the QoS profile of traffic #A is transmitted between.
  • the SMF determines the fifth QoS parameter according to the information #E.
  • the SMF determines a matching candidate QoS configuration file according to the information #E, and determines a corresponding sixth QoS parameter according to the matching candidate QoS configuration file.
  • the SMF determines the corresponding fifth QoS parameter according to the sixth QoS parameter and the corresponding relationship.
  • the candidate QoS configuration files generated by the SMF according to the QoS parameters (the second parameter and the fourth parameter) of the PDU session of the second device are: x 1 ' and x 2 ', and the matching candidate QoS file notified by the RAN is x 2 ' , the SMF determines that the sixth QoS parameter (the QoS parameter of the second device PDU session) is x 2 ' according to the matching candidate QoS configuration file, and the corresponding relationship is (x 1 , x 1 '), (x 2 , x 2 ') , the SMF determines that the fifth QoS parameter is x 2 according to the sixth QoS parameter and the corresponding relationship.
  • the SMF sends the fifth QoS parameter to the second device, where the fifth QoS parameter is used for QoS parameter configuration of the PC5 link.
  • Steps S610-S612 are similar to steps S410-412 of the method 400, and are not repeated here.
  • the PCF generates multiple sets of correspondences for the data flow #A of the first device according to the QoS request provided by the AF, and the SMF generates multiple alternative QoS for the data flow #A according to the multiple sets of correspondences configuration file
  • the SMF obtains the QoS configuration file matching the current Relay UE PDU session from the RAN
  • the SMF or the second device further determines the fifth QoS parameter according to the matching configuration file and the corresponding relationship, that is, the QoS parameter updated by the PC5 link
  • the QoS configuration of the PC5 link and the Relay UE PDU session can be adjusted to ensure the end-to-end QoS requirements of the first device.
  • the methods and operations implemented by the user equipment may also be implemented by components (such as chips or circuits) that can be used in the user equipment, and implemented by the access network equipment (such as a RAN node).
  • the methods and operations may also be implemented by components (eg, chips or circuits) available for access network equipment.
  • each network element such as a transmitter device or a receiver device
  • each network element includes hardware structures and/or software modules corresponding to performing each function in order to implement the above functions.
  • the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or by computer software-driven hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. middle.
  • the above-mentioned integrated modules can be implemented in the form of hardware, or can be implemented in the form of software function modules. It should be noted that, the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation. The following description will be given by using the division of each function module corresponding to each function as an example.
  • FIG. 7 is a schematic block diagram of a relay communication apparatus provided by an embodiment of the present application.
  • the relay communication device 700 includes a transceiver unit 710 and a processing unit 720 .
  • the transceiver unit 710 may implement corresponding communication functions, and the processing unit 720 is configured to perform data processing, so that the communication apparatus implements the foregoing method embodiments.
  • Transceiver unit 710 may also be referred to as a communication interface or a communication unit.
  • the relay communication apparatus 700 may further include a storage unit, which may be used to store instructions and/or data, and the processing unit 720 may read the instructions and/or data in the storage unit, so that the communication apparatus realizes The aforementioned method embodiments.
  • a storage unit which may be used to store instructions and/or data
  • the processing unit 720 may read the instructions and/or data in the storage unit, so that the communication apparatus realizes The aforementioned method embodiments.
  • the relay communication apparatus 700 may be configured to perform the actions performed by the first network element in the above method embodiments.
  • the relay communication apparatus 700 may be the first network element or a component that can be configured in the first network element.
  • the transceiver unit 710 is configured to perform the operations related to sending and receiving on the first network element side in the above method embodiments
  • the storage unit 720 is configured to perform the operations related to data or instruction storage on the first network element side in the above method embodiments
  • the processing unit 730 is configured to perform the operations related to the processing on the side of the first network element in the above method embodiments.
  • the first network element may be a PCF network element or a UDM network element.
  • the relay communication apparatus 700 may be configured to perform the actions performed by the second network element in the above method embodiments.
  • the relay communication apparatus 700 may be the second network element or may be configured in the second network element
  • the transceiver unit 710 is configured to perform the operations related to the sending and receiving on the second network element side in the above method embodiments
  • the storage unit 720 is configured to perform the data or instruction storage related operations on the second network element side in the above method embodiments.
  • the processing unit 730 is configured to perform the operations related to the processing on the second network element side in the above method embodiments.
  • the second network element may be an SMF network element.
  • the relay communication apparatus 700 is configured to perform the action performed by the first network element in the embodiment shown in FIG. 4 above, and the transceiver unit 710 is configured to acquire the QoS requirement of the data flow of the remote user equipment, According to the QoS requirements of the data flow, it is further used to send a first candidate parameter set to the second network element, where the first candidate parameter set is used to determine a target QoS parameter set, and the QoS parameters in the target QoS parameter set are It is used for transmitting the data stream between the relay user equipment and the user plane functional network element.
  • the processing unit 720 is configured to determine the first candidate parameter set according to the QoS requirement of the data flow.
  • the relay communication apparatus 700 may implement steps or processes corresponding to the first network element in the method 400 and the method 600 according to the embodiments of the present application, and the relay communication apparatus 700 may include a method for executing the method 400 in FIG. 4 . and elements of the method performed by the first network element in the method 600 in FIG. 6 .
  • each unit in the relay communication apparatus 700 and the above-mentioned other operations and/or functions are to implement the corresponding processes of the method 400 in FIG. 4 and the method 600 in FIG. 6 , respectively.
  • the transceiver unit 710 can be used to perform steps 603 and 605 in the method 600
  • the processing unit 720 can be used to perform the step 604 in the method 600 .
  • the relay communication apparatus 700 is configured to perform the action performed by the second network element in the embodiment shown in FIG. 4 above, and the transceiver unit 710 is configured to receive the first candidate parameter set from the first network element , wherein the first candidate parameter set is used to determine a target QoS parameter set, and the QoS parameters in the target QoS parameter set are used to transmit data of the remote user equipment between the relay user equipment and the user plane functional network element flow; also used for sending PC5 QoS parameters to the relay user equipment according to the matching candidate QoS configuration file, the PC5 QoS parameters are used between the relay user equipment and the remote user equipment The data stream is transmitted.
  • the processing unit 720 is configured to determine the PC5 QoS parameter according to the matching candidate QoS configuration file.
  • the relay communication apparatus 700 may implement steps or processes corresponding to the second network element in the method 400 and the method 600 according to the embodiments of the present application, and the relay communication apparatus 700 may include a method for executing the method 400 in FIG. 4 . and elements of the method performed by the second network element in the method 600 in FIG. 6 .
  • each unit in the relay communication apparatus 700 and the above-mentioned other operations and/or functions are to implement the corresponding processes of the method 400 in FIG. 4 and the method 600 in FIG. 6 , respectively.
  • the transceiver unit 710 can be used to execute steps 404 , 407 , 408 and 410 in the method 400
  • the processing unit 720 can be used to execute the method 400 Step 406 and Step 409 in .
  • the transceiver unit 710 can be used to execute steps 605 , 607 , 608 and 610 in the method 600
  • the processing unit 720 can be used to execute the steps in the method 600 . Step 606 and Step 609.
  • the processing unit 720 in the above embodiments may be implemented by at least one processor or processor-related circuit.
  • the transceiver unit 710 may be implemented by a transceiver or a transceiver-related circuit.
  • Transceiver unit 710 may also be referred to as a communication unit or a communication interface.
  • the storage unit may be implemented by at least one memory.
  • an embodiment of the present application further provides a relay communication apparatus 800 .
  • the relay communication apparatus 800 includes a processor 810, the processor 810 is coupled with a memory 820, the memory 820 is used for storing computer programs or instructions and/or data, and the processor 810 is used for executing the computer programs or instructions stored in the memory 820 and/or data.
  • the relay communication apparatus 800 includes one or more processors 810 .
  • the communication apparatus 800 may further include a memory 820 .
  • the relay communication apparatus 800 may include one or more memories 820 .
  • the memory 820 may be integrated with the processor 810, or provided separately.
  • the relay communication apparatus 800 is configured to implement the operations performed by the first network element in the above method embodiments.
  • the processor 810 is configured to implement the processing-related operations performed by the first network element in the above method embodiments.
  • the relay communication apparatus 800 is configured to implement the operations performed by the second network element in the above method embodiments.
  • the processor 810 is configured to implement the processing-related operations performed by the second network element in the above method embodiments.
  • a processor may be an integrated circuit chip with signal processing capabilities.
  • each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be Random Access Memory (RAM), which acts as an external cache.
  • RAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • synchronous link dynamic random access memory Synchlink DRAM, SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the size of the sequence numbers of the above-mentioned processes does not mean the order of execution, and the execution order 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 system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components 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 application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution, and the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes .

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Abstract

La présente demande concerne un procédé et un appareil de communication par relais. Le procédé de communication comprend les étapes suivantes : un premier élément de réseau acquiert une exigence de qualité de service (QoS) d'un flux de données d'un équipement d'utilisateur distant ; le premier élément de réseau génère un premier ensemble de paramètres de rechange pour le flux de données selon l'exigence QoS du flux de données, et envoie le premier ensemble de paramètres de rechange à un second élément de réseau ; le second élément de réseau envoie des fichiers de configuration QoS de rechange à un nœud RAN selon le premier ensemble de paramètres de rechange, de sorte que le nœud RAN sélectionne un fichier de configuration QoS de rechange correspondant qui satisfait la transmission d'un flux de données entre l'équipement d'utilisateur relais actuel et un élément de réseau de plan d'utilisateur ; et le second élément de réseau détermine un paramètre PC5 QoS d'une liaison PC5 selon le fichier de configuration QoS de rechange correspondant. Par conséquent, un ajustement au paramètre QoS de la liaison PC5 est mis en œuvre et une exigence QoS de bout en bout de l'équipement d'utilisateur distant est garantie.
PCT/CN2022/085260 2021-04-21 2022-04-06 Procédé et appareil de communication par relais WO2022222748A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110428551.8 2021-04-21
CN202110428551.8A CN115226164A (zh) 2021-04-21 2021-04-21 中继通信方法和装置

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