CN115515081A

CN115515081A - Wireless communication method and communication device

Info

Publication number: CN115515081A
Application number: CN202110633850.5A
Authority: CN
Inventors: 王亚鑫; 余芳; 李岩
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2022-12-23
Also published as: WO2022257629A1

Abstract

The application provides a wireless communication method and a communication device. The method comprises the following steps: generating an identifier of a group session corresponding to an aggregation group, wherein the aggregation group comprises at least two terminals, the at least two terminals are in communication connection with communication equipment, and the at least two terminals provide an aggregation service for the communication equipment; and establishing the group session according to the identifier of the group session. According to the scheme, the communication equipment can be in communication connection with the plurality of terminals, so that the plurality of terminals can shunt data of the communication equipment, and the requirement of the communication equipment on large flow can be met. Moreover, the plurality of terminals can back up each other, when part of the terminals are in failure or overloaded, other terminals still provide services for the communication equipment, and therefore the requirement of the communication equipment for corresponding reliability can be met.

Description

Wireless communication method and communication device

Technical Field

The present application relates to the field of wireless communication technologies, and in particular, to a wireless communication method and a communication apparatus.

Background

In some application scenarios, a communication device, such as an industrial device in an industrial application, does not communicate directly with a network, but communicates with the network through a terminal. In the uplink direction, the communication device transmits uplink data to the terminal, and the terminal transmits the uplink data to the network. In the downlink direction, the terminal receives downlink data to be sent to the communication device from the network and sends the downlink data to the communication device.

Currently, with the improvement of the capability of a communication device, the communication device has the requirements of reliability and large flow. However, the capability of the terminal to which the communication device is connected is limited, and the terminal also has a possibility of failure, so that the requirements of the communication device for reliability and a large flow rate cannot be satisfied.

Disclosure of Invention

The embodiment of the application provides a wireless communication method and a communication device, which are used for meeting the requirements of communication equipment on reliability and large flow.

In a first aspect, the present embodiments provide a wireless communication method, which may be performed by a session management network element or a module (e.g., a chip) applied in the session management network element. The method comprises the following steps: generating an identifier of a group session corresponding to an aggregation group, wherein the aggregation group comprises at least two terminals, the at least two terminals are in communication connection with communication equipment, and the at least two terminals provide an aggregation service for the communication equipment; and establishing the group session according to the identification of the group session.

According to the scheme, the communication equipment can be in communication connection with the plurality of terminals, so that the plurality of terminals can shunt data of the communication equipment, and the requirement of the communication equipment on large flow can be met. Moreover, the plurality of terminals can be mutually backed up, when part of the terminals are in failure or overloaded, other terminals still provide services for the communication equipment, and therefore the requirement of the communication equipment on corresponding reliability can be met.

In a possible implementation method, a first request is received from a first terminal, where the first request includes identification information of the first terminal and identification information of the communication device, and the first request is used to request to join the aggregation group or to request to establish a group session for the communication device; and if the first terminal is determined to be contained in the terminal list, authorizing the first terminal to join the aggregation group, wherein the terminal list contains terminals capable of providing the aggregation service for the communication equipment.

According to the scheme, whether the first terminal is added into the aggregation group can be judged based on the request of the first terminal, so that the terminals of the aggregation group can be increased as required.

In a possible implementation method, a first message is sent to a radio access network device, where the first message includes identification information of the group session, identification information of the first terminal, first QoS information of QoS flows of the group session, and second QoS information of QoS flows of the session of the first terminal, and the first message is used to request establishment of the group session.

According to the scheme, the related information of the group session is sent to the wireless access network equipment, and the wireless access network equipment can receive and transmit the data of the communication equipment through the group session, so that a plurality of terminals can share one group session, and the resource saving is facilitated.

In a possible implementation method, the first QoS information includes a first QFI and a first bandwidth parameter corresponding to the first QFI; the second QoS information includes a second QFI.

In a possible implementation method, the first message further includes first indication information, where the first indication information indicates that the radio access network device or the first terminal determines a second bandwidth parameter corresponding to the second QFI.

According to the above scheme, the second bandwidth parameter corresponding to the second QFI can be determined by the radio access network device or the first terminal, and the accuracy of the second bandwidth parameter can be improved.

In a possible implementation method, the first message further includes a first association relationship, where the first association relationship is used to indicate an association relationship between the first QFI and the second QFI; alternatively, the first QFI is the same as the second QFI.

According to the scheme, the incidence relation between the data transmission between the terminal and the wireless access network equipment and the data transmission between the wireless access network equipment and the user plane network element can be established, so that the correct transmission of the communication equipment on the user plane can be realized.

In one possible implementation, sending QoS rules for the group session to the first terminal; wherein, when the first request is used for requesting to join the aggregation group, the QoS rule includes the identification information of the session of the first terminal and the second QoS information; alternatively, in a case where the first request is for requesting establishment of a group session for the communication device, the QoS rule includes identification information of the group session and the second QoS information. Optionally, the QoS rule further includes the first indication information.

According to the scheme, the first terminal can correctly use the session of the first terminal to send the data of the communication equipment, so that the data can be correctly mapped to the group session on the radio access network equipment side.

In a possible implementation method, a group session establishment request from an application function network element is received, where the group session establishment request includes identification information of the communication device and a terminal list, and the terminal list includes terminals capable of providing an aggregation service for the communication device; and determining the aggregation group according to the position information of the terminals in the terminal list, wherein the at least two terminals contained in the aggregation group are all from the terminal list.

According to the scheme, the session management network element can autonomously determine the aggregation group, and the efficiency of determining the aggregation group can be improved.

In a possible implementation method, a join request is received from a first terminal, where the join request includes identification information of the first terminal and identification information of the communication device, and the join request is used to request to join the aggregation group; and determining the aggregation group according to the position information of the first terminal, wherein the at least two terminals included in the aggregation group include the first terminal, and the at least two terminals access the same wireless access network device.

In one possible implementation method, a first message is sent to the radio access network device, where the first message includes identification information of the group session, identification information of terminals in the aggregation group, third QoS information of QoS flows of the group session, and fourth QoS information of QoS flows of terminals in the aggregation group.

In a possible implementation method, the third QoS information includes a third QFI and a third bandwidth parameter corresponding to the third QFI; the fourth QoS information includes a fourth QFI.

In a possible implementation method, the first message further includes second indication information, where the second indication information indicates that the fourth bandwidth parameter corresponding to the fourth QFI is determined by the radio access network device or a terminal in the aggregation group.

According to the above scheme, the fourth bandwidth parameter corresponding to the fourth QFI may be determined by the radio access network device or the terminal in the aggregation group, so as to improve the accuracy of the fourth bandwidth parameter.

In a possible implementation method, the first message further includes a second association relationship, where the second association relationship is used to indicate an association relationship between the third QFI and the fourth QFI; alternatively, the third QFI is the same as the fourth QFI.

In a possible implementation method, a QoS rule for the group session is sent to the terminals in the aggregation group, where the QoS rule includes the identification information of the session of the terminal and the fourth QoS information. Optionally, the QoS rule further includes the second indication information.

In a possible implementation method, a QoS rule for the group session is sent to the terminals in the aggregation group, where the QoS rule includes the identification information of the group session and the fourth QoS information. Optionally, the QoS rule further includes the second indication information.

According to the scheme, the terminal in the aggregation group can correctly use the session or the group session of the terminal to send the data of the communication equipment, so that the data can be correctly mapped to the group session on the radio access network equipment side.

In a possible implementation method, a session establishment notification is sent to a terminal in the aggregation group, where the session establishment notification includes identification information of the group session, and the session establishment notification is used to notify the terminal in the aggregation group to initiate group session establishment; receiving a session establishment request from a terminal in the aggregated group, wherein the session establishment request includes identification information of the group session, and the session establishment request is used for requesting to establish the group session.

According to the above scheme, a group session can be established based on a session establishment request of the terminal, so that the terminal can sense the group session, and a subsequent terminal can transmit data of the communication device to the wireless access network device through the group session or receive data from the wireless access network device through the group session.

In a possible implementation method, sending, to a policy control network element, identification information and third indication information of the communication device, where the third indication information is used to request establishment of a group session for the communication device; and receiving fourth indication information from the policy control network element and the QoS configuration of the default QoS flow of the group session, wherein the fourth indication information indicates that the group session can be established.

In one possible implementation, the QoS configuration of the default QoS flow for the group session includes default bandwidth parameters.

In a second aspect, the present application provides a wireless communication method, which may be performed by a radio access network device or a module (e.g., a chip) applied in the radio access network device. The method comprises the following steps: receiving a first message from a session management network element, wherein the first message comprises identification information of a group session corresponding to an aggregation group, and the first message is used for requesting to establish the group session; the aggregation group comprises at least two terminals, the at least two terminals are in communication connection with the communication equipment, and the at least two terminals provide aggregation service for the communication equipment; and establishing the group session according to the identification information of the group session.

According to the scheme, the communication equipment can be in communication connection with the plurality of terminals, so that the plurality of terminals can shunt data of the communication equipment, and the large-flow requirement of the communication equipment can be met. Moreover, the plurality of terminals can back up each other, when part of the terminals are in failure or overloaded, other terminals still provide services for the communication equipment, and therefore the requirement of the communication equipment for corresponding reliability can be met.

In a possible implementation method, the first message further includes identification information of the first terminal, first QoS information of QoS flows of the group session, and second QoS information of QoS flows of the sessions of the first terminal.

In a possible implementation method, determining a offloading policy according to the first bandwidth parameter and the channel state information of the first terminal, where the offloading policy includes an offloading proportion of the first terminal; determining the second bandwidth parameter according to the shunting strategy; and sending the second bandwidth parameter to the first terminal.

According to the scheme, the wireless access network equipment determines the second bandwidth parameter, so that the first terminal performs shunt control according to the second bandwidth parameter.

In a possible implementation method, the first bandwidth parameter and the split ratio of the first terminal are sent to the first terminal, and the first bandwidth parameter and the split ratio of the first terminal are used to determine the second bandwidth parameter.

According to the scheme, the terminal determines the second bandwidth parameter, so that the first terminal performs shunt control according to the second bandwidth parameter.

In a possible implementation method, a first data packet is received from the first terminal, wherein the first data packet comprises the second QFI and first data from the communication device; generating a second data packet according to the first association relation, wherein the second data packet comprises the first QFI and the first data; and sending the second data packet to the user plane network element.

In a possible implementation method, a third data packet is received from the user plane network element, and the third data packet includes the first QFI and the second data; generating a fourth data packet according to the first association relationship, wherein the fourth data packet comprises the second QFI and the second data; and sending the fourth data packet to the first terminal.

In a possible implementation method, the first message further includes identification information of terminals in the aggregation group, third QoS information of QoS flows of the group session, and fourth QoS information of QoS flows of terminals in the aggregation group.

In a possible implementation method, determining a offloading policy according to the third bandwidth parameter and channel state information of the terminals in the aggregation group, where the offloading policy includes an offloading duty ratio of the terminals in the aggregation group; determining the fourth bandwidth parameter according to the shunting strategy; and sending the fourth bandwidth parameter to the terminals in the aggregation group.

According to the scheme, the wireless access network equipment determines the fourth bandwidth parameter, so that the terminal performs the shunt control according to the fourth bandwidth parameter.

In a possible implementation method, the third bandwidth parameter and the split ratio of the terminals in the aggregation group are sent to the terminals in the aggregation group, and the third bandwidth parameter and the split ratio of the terminals in the aggregation group are used to determine the fourth bandwidth parameter.

According to the scheme, the terminal determines the fourth bandwidth parameter, so that the terminal performs shunt control according to the fourth bandwidth parameter.

In one possible implementation method, a fifth data packet is received from the terminal in the aggregation group, and the fifth data packet includes the fourth QFI and the third data from the communication device; generating a sixth data packet according to the second association relationship, wherein the sixth data packet includes the third QFI and the third data; and sending the sixth data packet to the user plane network element.

In a possible implementation method, a seventh data packet is received from a user plane network element, where the seventh data packet includes the third QFI and the fourth data; generating an eighth data packet according to the second association relationship, wherein the eighth data packet includes the fourth QFI and the fourth data; and sending the eighth data packet to the terminals in the aggregation group.

In a possible implementation method, a offloading rule is sent to a terminal in the aggregation group, where the offloading rule is used to instruct the terminal to send a rule of an uplink data packet from the communication device, and/or instruct the terminal to send a rule of a downlink data packet from the radio access network device.

According to the scheme, the shunting rule is sent to the terminal, so that the terminal can receive and send the data packet of the communication equipment according to the shunting rule, and the shunting control of the data packet of the communication equipment is realized. And because the group session is adopted between the wireless access network equipment and the user plane network element, one data transmission tunnel is commonly used, and the identifier of the group session of the whole group is commonly used, when the shunting rule needs to be adjusted, only the wireless access network equipment and the terminal need to negotiate, and an additional signaling flow is not needed in a core network, so that the time for adjusting the shunting rule is saved, and the flexibility for configuring and adjusting the shunting rule is improved.

In a third aspect, embodiments of the present application provide a wireless communication method, which may be performed by a terminal or a module (e.g., a chip) applied in the terminal. The method comprises the following steps: receiving a shunting rule from a wireless access network device, wherein the shunting rule is used for indicating a rule that the terminal sends an uplink data packet from a communication device and/or indicating a rule that the terminal sends a downlink data packet from the wireless access network device; and sending an uplink data packet from the communication equipment to the wireless access network equipment and/or sending a downlink data packet from the wireless access network equipment to the communication equipment according to the shunting rule.

According to the scheme, the terminal can receive and transmit the data packet of the communication equipment according to the shunting rule, and the shunting control of the data packet of the communication equipment is realized, so that the requirement of the communication equipment on large flow and the requirement on reliability are met.

In a possible implementation method, a first request is sent to a session management network element, where the first request includes identification information of the terminal and identification information of the communication device; receiving a QoS rule for a group session from the session management network element; wherein, when the first request is used for requesting to join the aggregation group, the QoS rule includes identification information of a session of the terminal and QoS information of the terminal; or, in a case where the first request is for requesting establishment of a group session for the communication device, the QoS rule includes identification information of the group session and QoS information of the terminal, where the QoS information includes QFI. Optionally, the QoS rule further includes indication information, which is used to indicate that the radio access network device or the terminal determines the bandwidth parameter corresponding to the QFI.

In a possible implementation method, receiving bandwidth parameters corresponding to the group session from the radio access network device and a split ratio of the terminal; and determining the bandwidth parameter corresponding to the QFI according to the bandwidth parameter corresponding to the group session and the shunting ratio of the terminal.

According to the scheme, the terminal determines the bandwidth parameters, so that the terminal performs shunt control according to the bandwidth parameters.

In a possible implementation method, in a case where the first request is for requesting establishment of a group session for the communication device, receiving a URSP, where the URSP includes identification information of the communication device; after detecting the data packet from the communication device, sending the first request to the session management network element according to the URSP.

In a possible implementation method, in a case that the first request is used to request establishment of a group session for the communication device, receiving a session establishment notification from a session management network element, where the session establishment notification includes identification information of the group session, and the session establishment notification is used to notify the terminal to initiate establishment of the group session; the first request also includes identification information of the group session.

In a fourth aspect, an embodiment of the present application provides a communication apparatus, which may be a session management network element, and may also be a module (e.g., a chip) for the session management network element. The apparatus has a function of implementing any of the implementation methods of the first aspect described above. The function can be realized by hardware, and can also be realized by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the functions described above.

In a fifth aspect, an embodiment of the present application provides a communication apparatus, which may be a radio access network device and may also be a module (e.g., a chip) for a radio access network device. The apparatus has a function of implementing any of the implementation methods of the second aspect described above. The function can be realized by hardware, and can also be realized by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the functions described above.

In a sixth aspect, embodiments of the present application provide a communication apparatus, which may be a terminal, and may also be a module (e.g., a chip) for the terminal. The apparatus has a function of implementing any of the implementation methods of the third aspect described above. The function can be realized by hardware, and can also be realized by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the functions described above.

In a seventh aspect, an embodiment of the present application provides a communication apparatus, including a processor and a memory; the memory is configured to store computer instructions, and when the apparatus is running, the processor executes the computer instructions stored in the memory, so as to cause the apparatus to perform any implementation method of the first to third aspects.

In an eighth aspect, an embodiment of the present application provides a communication apparatus, which includes means or units (means) for performing each step of any implementation method in the first to third aspects.

In a ninth aspect, an embodiment of the present application provides a communication device, which includes a processor and an interface circuit, where the processor is configured to communicate with other devices through the interface circuit, and perform any implementation method in the first to third aspects. The processor includes one or more.

In a tenth aspect, an embodiment of the present application provides a communication apparatus, including a processor coupled to a memory, where the processor is configured to call a program stored in the memory to execute any implementation method in the first to third aspects. The memory may be located within the device or external to the device. And the processor may be one or more.

In an eleventh aspect, the present application further provides a computer-readable storage medium, which stores instructions that, when executed on a communication apparatus, cause any implementation method in the first to third aspects to be performed.

In a twelfth aspect, the present application further provides a computer program product, which includes a computer program or an instruction, when the computer program or the instruction is executed by a communication device, the method of any implementation method in the first to third aspects is executed.

In a thirteenth aspect, an embodiment of the present application further provides a chip system, including: a processor configured to perform any of the implementation methods of the first to third aspects.

In a fourteenth aspect, an embodiment of the present application further provides a communication system, where the communication system includes a session management network element and a radio access network device configured to execute any implementation method of the second aspect; wherein the session management network element is configured to send a first message to the radio access network device.

Drawings

FIG. 1 (a) is a schematic diagram of a 5G network architecture based on a service-oriented architecture;

FIG. 1 (b) is a schematic diagram of a 5G network architecture based on a point-to-point interface;

fig. 2 is a schematic diagram of a wireless communication method according to an embodiment of the present application;

fig. 3 is a schematic diagram of a method for implementing multi-terminal aggregation according to an embodiment of the present application;

fig. 4 is a schematic diagram of a wireless communication method according to an embodiment of the present application;

fig. 5 is a schematic diagram of a wireless communication method according to an embodiment of the present application;

fig. 6 is a schematic diagram of a wireless communication method according to an embodiment of the present application;

fig. 7 is a schematic diagram of a wireless communication method according to an embodiment of the present application;

fig. 8 is a schematic diagram of a communication device according to an embodiment of the present application;

fig. 9 is a schematic diagram of a communication device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more clear, the present application will be further described in detail with reference to the accompanying drawings. The particular methods of operation in the method embodiments may also be applied in device embodiments or system embodiments.

FIG. 1 (a) is a schematic diagram of a fifth generation (5G) network architecture based on a service architecture. The 5G network architecture shown in fig. 1 (a) may include three parts, namely a terminal, a Data Network (DN) and an operator network. The functions of some of the network elements will be briefly described below.

Wherein the operator network may comprise one or more of the following network elements: an Authentication Server Function (AUSF) Network element, a Network open Function (NEF) Network element, a Policy Control Function (PCF) Network element, a Unified Data Management (UDM) Network element, a Unified Data Repository (UDR), a Network storage Function (Network storage Function, NRF) Network element, an Application Function (AF) Network element, an access and mobility management Function (AMF) Network element, a Session Management Function (SMF) Network element, a Radio Access Network (RAN) device, and a user plane Function (user plane, UPF) Network element, a Network Slice Selection Function (Slice) Network element, a sf Network element, and the like. In the operator network, network elements or devices other than the radio access network device may be referred to as core network elements or core network devices.

The radio access network device may be a base station (base station), an evolved NodeB (eNodeB), a Transmission Reception Point (TRP), a next generation base station (next generation NodeB, gNB) in a 5G mobile communication system, a next generation base station in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a wireless fidelity (WiFi) system, etc.; the present invention may also be a module or a unit that performs part of the functions of the base station, for example, a Centralized Unit (CU) or a Distributed Unit (DU). The radio access network device may be a macro base station, a micro base station or an indoor station, a relay node or a donor node, and the like. The embodiments of the present application do not limit the specific technology and the specific device form used by the radio access network device. In the embodiments of the present application, a base station is described as an example of a radio access network device.

A terminal may also be referred to as a terminal equipment, a User Equipment (UE), a mobile station, a mobile terminal, etc. The terminal can be widely applied to various scenes, for example, device-to-device (D2D), vehicle-to-equipment (V2X) communication, machine-type communication (MTC), internet of things (IOT), virtual reality, augmented reality, industrial control, automatic driving, telemedicine, smart grid, smart furniture, smart office, smart wearing, smart transportation, smart city, and the like. The terminal can be cell-phone, panel computer, take the computer of wireless transceiver function, wearable equipment, vehicle, unmanned aerial vehicle, helicopter, aircraft, steamer, robot, arm, intelligent home equipment etc.. The embodiment of the present application does not limit the specific technology and the specific device form adopted by the terminal.

The base stations and terminals may be fixed or mobile. The base station and the terminal can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on the water surface; it may also be deployed on airborne airplanes, balloons and satellite vehicles. The embodiment of the application does not limit the application scenarios of the base station and the terminal.

And the AMF network element executes functions of mobility management, access authentication/authorization and the like. In addition, it is also responsible for transferring user policy between the terminal and the PCF.

The SMF network element performs functions such as session management, control policy execution issued by PCF, selection of UPF, and Internet Protocol (IP) address allocation of the terminal.

The UPF network element is used as an interface UPF with a data network to complete functions of user plane data forwarding, session/stream level-based charging statistics, bandwidth limitation and the like.

And the UDM network element executes functions of managing subscription data, user access authorization and the like.

And the UDR executes the access function of the type data such as the subscription data, the strategy data, the application data and the like.

And the NEF network element is used for supporting the opening of the capability and the event.

The AF network element transfers requirements of the application side on the network side, such as Quality of Service (QoS) requirements or user status event subscriptions, etc. The AF may be a third party functional entity or an application service deployed by an operator, such as an IP Multimedia Subsystem (IMS) voice call service.

And the PCF network element is responsible for performing policy control functions such as charging, qoS bandwidth guarantee, mobility management, terminal policy decision and the like aiming at the session and service stream levels.

The NRF network element can be used for providing a network element discovery function and providing network element information corresponding to the network element type based on the request of other network elements. NRF also provides network element management services such as network element registration, update, de-registration, and network element status subscription and push.

And the AUSF network element is responsible for authenticating the user so as to determine whether the user or the equipment is allowed to access the network.

And the NSSF network element is used for selecting the network slice, counting the users in the network slice and the like.

The DN is a network outside the operator network, the operator network can access a plurality of DNs, and the DN can deploy a plurality of services and provide services such as data and/or voice for the terminal. For example, the DN is a private network of a certain intelligent factory, a sensor installed in a workshop of the intelligent factory can be a terminal, a control server of the sensor is deployed in the DN, and the control server can provide services for the sensor. The sensor can communicate with the control server, obtain the instruction of the control server, transmit the sensor data gathered to the control server, etc. according to the instruction. For another example, the DN is an internal office network of a company, the mobile phone or computer of the employee of the company may be a terminal, and the mobile phone or computer of the employee may access information, data resources, and the like on the internal office network of the company.

In fig. 1 (a), nausf, nnef, npcf, nudm, naf, namf, and Nsmf are the service interfaces provided by the AUSF, NEF, PCF, UDM, AF, AMF, and SMF, respectively, for invoking the corresponding service operations. N1, N2, N3, N4, and N6 are interface serial numbers. The meaning of these interface serial numbers can be found in the third generation partnership project (3 rd generation partnership project,3 gpp) standard protocol, which is not limited herein.

Fig. 1 (b) is a schematic diagram of a 5G network architecture based on a point-to-point interface, where introduction of functions of network elements may refer to introduction of functions of corresponding network elements in fig. 1 (a), and details are not repeated. The main difference between fig. 1 (b) and fig. 1 (a) is that: the interfaces between the control plane network elements in fig. 1 (a) are served interfaces, and the interfaces between the control plane network elements in fig. 1 (b) are point-to-point interfaces.

In the architecture shown in fig. 1 (b), the interface names and functions between the network elements are as follows:

1) N1: the interface between the AMF and the terminal may be used to deliver QoS control rules, etc. to the terminal.

2) N2: the interface between the AMF and the RAN may be used to transfer radio bearer control information from the core network side to the RAN, and so on.

3) N3: the interface between RAN and UPF is mainly used for transmitting uplink and downlink user plane data between RAN and UPF.

4) And N4: the interface between the SMF and the UPF may be used to transfer information between the control plane and the user plane, including controlling the sending of forwarding rules, qoS control rules, traffic statistics rules, etc. for the user plane and reporting of information for the user plane.

5) N5: the interface between the AF and the PCF may be used for application service request issue and network event report.

6) N6: and the UPF and DN interface is used for transmitting the uplink and downlink user data stream between the UPF and the DN.

7) N7: the interface between the PCF and the SMF may be used to send a Protocol Data Unit (PDU) session granularity and a service data stream granularity control policy.

8) And N8: the interface between the AMF and the UDM may be used for the AMF to obtain subscription data and authentication data related to access and mobility management from the UDM, and for the AMF to register information related to current mobility management of the terminal with the UDM.

9) N9: and the user interface between the UPF and the UPF is used for transmitting the uplink and downlink user data streams between the UPFs.

10 N10: the interface between the SMF and the UDM may be used for the SMF to acquire the subscription data related to session management from the UDM, and for the SMF to register the information related to the current session of the terminal with the UDM.

11 N11), N11: the interface between the SMF and the AMF may be used to transfer PDU session tunnel information between the RAN and the UPF, to transfer control messages to the terminal, to transfer radio resource control information to the RAN, and so on.

12 N12), N12: the interface between the AMF and the AUSF can be used for initiating an authentication process from the AMF to the AUSF, wherein the SUCI can be carried as a subscription identifier;

13 N13), N13: the interface between the UDM and the AUSF may be used for the AUSF to obtain the user authentication vector from the UDM to execute the authentication procedure.

14 N15), N15: the interface between PCF and AMF can be used to send down terminal strategy and access control relative strategy.

15 N35): and the interface between the UDM and the UDR can be used for the UDM to acquire the user subscription data information from the UDR.

16 N36, N36: the interface between the PCF and the UDR may be used for the PCF to obtain policy related subscription data and application data related information from the UDR.

It is to be understood that the above network elements or functions may be network elements in a hardware device, or may be software functions running on dedicated hardware, or virtualization functions instantiated on a platform (e.g., a cloud platform). Optionally, the network element or the function may be implemented by one device, may also be implemented by multiple devices together, and may also be a functional module in one device, which is not specifically limited in this embodiment of the present application.

The session management network element, the user plane network element, and the policy control network element in this application may be the SMF, UPF, and PCF in fig. 1 (a) or fig. 1 (b), respectively, or may be a network element having the functions of the SMF, UPF, and PCF in future communication, for example, a sixth generation (6 g) network, which is not limited in this application. In the embodiments of the present application, an SMF, a UPF, and a PCF are respectively used as an example of a session management network element, a user plane network element, and a policy control network element.

In order to solve the problems of insufficient performance of a single terminal and reliability of equipment, the embodiment of the application provides a scheme of multi-terminal capability aggregation, namely, a plurality of terminals jointly transmit and receive data for one communication equipment, the capabilities of the plurality of terminals are aggregated together to form a large bandwidth, and meanwhile, the plurality of terminals can mutually back up each other to solve the reliability problem.

It should be noted that, the communication device in the embodiment of the present application refers to a device that needs to transmit and receive data through a terminal, for example, in an industrial scenario, the communication device may be an industrial device. In the uplink direction, the communication device transmits uplink data to the terminal, which transmits the uplink data to the network, and in the downlink direction, the terminal receives downlink data from the network and transmits the downlink data to the communication device.

Fig. 2 is a schematic diagram of a wireless communication method according to an embodiment of the present application. The method comprises the following steps:

in step 201, the smf generates an identifier of a group session corresponding to the aggregation group.

The aggregation group comprises at least two terminals, the at least two terminals are in communication connection with the communication equipment, and the at least two terminals provide aggregation service for the communication equipment.

Here, the aggregation service refers to that the terminals in the aggregation group provide services for the communication device at the same time, and is specifically represented as: in the uplink direction, the communication equipment simultaneously sends the complete data to be sent to each terminal, and each terminal respectively sends a part of the complete data to the network according to the shunting rule. In the downlink direction, each terminal receives partial data in the complete data which needs to be sent to the communication equipment from the network, then the received partial data is sent to the communication equipment, and the communication equipment obtains the complete data according to the data received from each terminal; or, each terminal receives the complete data to be sent to the communication equipment from the network, then sends the received complete data to the communication equipment, and the communication equipment performs deduplication on the complete data received from each terminal to obtain corresponding data.

The group session here refers to a session shared by the terminals in the aggregation group, and the session is used for transmitting data of the communication device to the network or receiving data required to be transmitted to the communication device from the network.

In step 202, the smf establishes the group session based on the group session identifier.

According to the scheme, the communication equipment can be in communication connection with the plurality of terminals, so that the plurality of terminals can shunt data of the communication equipment, and the requirement of the communication equipment on large flow can be met. Moreover, the plurality of terminals can back up each other, when part of the terminals are in failure or overloaded, other terminals still provide services for the communication equipment, and therefore the requirement of the communication equipment for corresponding reliability can be met.

Fig. 3 is a schematic diagram of a method for implementing multi-terminal aggregation according to an embodiment of the present disclosure. In this example, the communication device connects two terminals simultaneously in a wired or wireless manner, and each terminal has its own Packet Data Convergence Protocol (PDCP) entity. The base station is connected with the base station through respective Radio Link Control (RLC), medium Access Control (MAC) and Physical (PHY) entities, and the base station has a unified PDCP entity, combines data sent by the PDCP entities of the two terminals, and sends the combined data to the UPF through a group session facing the aggregation group. The base station can make and configure a shunting rule for the two terminals, and select the sequence number of the data packet to be sent at the PDCP entity. That is, both terminals receive all data packets, but only send data packets with specific sequence numbers according to the offloading rule, and the data packets sent by both terminals can be reordered according to the sequence numbers through aggregation of the base station, so as to obtain all data packets, thereby achieving the purpose of offloading and transmitting the data packets.

As an implementation method, the generation of the aggregation group may be that the SMF determines whether to join the terminal to the aggregation group based on a request of the terminal, or that the SMF actively generates an aggregation group. The two methods are explained below.

In the first method, the SMF judges whether to add a terminal to the aggregation group based on the request of the terminal.

For example, before step 201, the SMF receives a first request from the first terminal, where the first request includes identification information of the first terminal and identification information of the communication device, and the first request is a join request for requesting to join the aggregation group, or the first request is a session establishment request for requesting to establish a group session for the communication device. After receiving the first request, the SMF determines whether the first terminal is included in a terminal list, and if so, authorizes the first terminal to join the aggregation group, where the terminal list includes terminals capable of providing the aggregation service for the communication device, the terminal list may be an application function network element related to the communication device, such as an industrial controller, and provided to the PCF, and then provided to the SMF by the PCF, or the terminal list may be configured on the SMF by an operator, or configured on the PCF by the operator, and then provided to the SMF by the PCF.

Illustratively, the SMF stores a communication device a and a terminal list corresponding to the communication device a, where the terminal list includes a terminal 1, a terminal 2, a terminal 3, and a terminal 4. If the terminal 1 sends the first request to the SMF, and the SMF determines that the terminal 1 is included in the terminal list, the terminal 1 is authorized to join the aggregation group, that is, the aggregation group includes the terminal 1. If the terminal 5 sends the first request to the SMF, and the SMF determines that the terminal 5 is not included in the terminal list, the terminal 5 is not authorized to join the aggregation group, that is, the aggregation group does not include the terminal 5.

According to the first method, if a certain terminal wants to join the aggregation group, the terminal firstly needs to send a first request to the SMF, and when the SMF authorizes the terminal to join, the terminal can join the aggregation group. If a terminal does not send the first request, the terminal is not joined to the aggregation group. For example, when all of the terminal 1, the terminal 2, the terminal 5, and the terminal 6 transmit the first request, the aggregation group generated by the SMF includes the terminal 1 and the terminal 2.

In the second method, the SMF actively generates an aggregation group.

In the method, rather than generating an aggregation group by sending a request by each terminal, the SMF actively generates an aggregation group.

As an implementation method, an application function network element, such as an industrial controller, associated with the communication device sends a group session establishment request to the SMF, where the group session establishment request includes identification information of the communication device and a terminal list, and the terminal list includes terminals capable of providing an aggregation service for the communication device, and then the SMF determines an aggregation group according to location information of the terminals in the terminal list, where the terminals included in the aggregation group are all from the terminal list. Illustratively, the application function network element provides the SMF with identification information of the communication device a and a terminal list, where the terminal list includes the terminal 1, the terminal 2, the terminal 3, and the terminal 4, for example, the terminal 1, the terminal 2, and the terminal 3 are accessed to the same base station, and the terminal 4 is accessed to another base station, and then the SMF determines that the aggregation group includes the terminal 1, the terminal 2, and the terminal 3, but does not include the terminal 4, according to the location information (represented by the accessed base station) of each terminal in the terminal list.

As another implementation method, an SMF receives a join request from any terminal, such as a first terminal, where the join request includes identification information of the first terminal and identification information of a communication device, and the join request is used to request to join an aggregation group, and the SMF determines the aggregation group according to location information of the first terminal, where the aggregation group includes the first terminal and other terminals that access to the same base station as the first terminal. For example, terminal 1 sends a join request to the SMF, and then the SMF determines that the aggregation group includes terminal 1 and other terminals, such as terminal 2, terminal 3, and terminal 4, which access to the same base station as terminal 1, that is, the determined aggregation group includes terminal 1, terminal 2, terminal 3, and terminal 4. The method takes a joining request sent by a certain terminal as a trigger condition, triggers SMF to generate an aggregation group, and does not need other terminals to send joining requests subsequently.

If the SMF determines the aggregation group through the first method, as an implementation method, the SMF may further send a first message to the base station, where the first message includes identification information of the group session, identification information of the first terminal, first QoS information of a QoS flow of the group session, and second QoS information of a QoS flow of a session of the first terminal, and the first message is used to request establishment of the group session. After receiving the first message, the base station may establish the group session according to the identification information of the group session.

Optionally, the first QoS information includes a first Quality of Service Flow Identity (QFI) and a first bandwidth parameter corresponding to the first QFI, where the first QFI is used to identify QoS flows of the group session, and the first bandwidth parameter may include, for example, a 5G QoS Identity (5G QoS Identity, 5qi), a Guaranteed Flow Bit Rate (GFBR), and a Maximum Flow Bit Rate (MFBR). The second QoS information includes a second QFI identifying a QoS flow for the session of the first terminal.

Optionally, the first message may further include first indication information, where the first indication information indicates that the base station or the first terminal determines a second bandwidth parameter corresponding to the second QFI, and the second bandwidth parameter includes, for example, a GFBR. As an implementation method, the base station determines the second bandwidth parameter, for example, the base station determines a offloading policy according to the first bandwidth parameter and the channel state information of the first terminal, where the offloading policy includes an offloading proportion of the first terminal, the base station determines the second bandwidth parameter according to the offloading policy, and then the base station sends the second bandwidth parameter to the first terminal. As another implementation method, the terminal determines the second bandwidth parameter, the base station sends the first bandwidth parameter and the split ratio of the first terminal to the first terminal, and then the terminal determines the second bandwidth parameter according to the first bandwidth parameter and the split ratio of the first terminal. The second bandwidth parameter may include, for example, a GFBR corresponding to the first terminal. Illustratively, the GFBR included in the first bandwidth parameter is 100 megabits per second (Mbps), the GFBR included in the second bandwidth is 50Mbps, and the fractional share of the first terminal is 50%.

Optionally, when the group session is used between the terminal and the base station, the group session is also used between the base station and the UPF, and a first QFI of QoS flows in the group session between the base station and the UPF is the same as a second QFI of QoS flows in the group session between the terminal and the base station. In this case, after receiving the data packet from the communication device, the first terminal adds a second QFI to the data packet, and after receiving the data packet from the terminal, the base station sends the data packet to the UPF. Or the base station receives a data packet from the UPF, wherein the data packet comprises the first QFI, and then the base station directly sends the data packet to the terminal.

Optionally, the first QFI is different from the second QFI, where the group session is used between the terminal and the base station and the group session is also used between the base station and the UPF, or the session is used between the terminal and the base station and the group session is used between the base station and the UPF, and the first message further includes a first association relationship, where the first association relationship is used to indicate an association relationship between the first QFI and the second QFI. In this case, the communication device sends a data packet to the terminal, where the data packet includes first data, the first terminal adds a second QFI to the data packet after receiving the data packet to obtain the first data packet, and then sends the first data packet to the base station, and the base station generates a second data packet according to the first association relationship after receiving the first data packet, where the second data packet includes the first QFI and the first data, and then the base station sends the second data packet to the UPF. Or, the UPF sends a third data packet to the base station, where the third data packet includes the first QFI and the second data, and after receiving the third data packet, the base station generates a fourth data packet according to the first association relation, where the fourth data packet includes the second QFI and the second data, and then the base station sends the fourth data packet to the first terminal. Therefore, when the first QFI is different from the second QFI, the base station needs to map the QFIs in the data packet according to the first association relationship.

If the SMF determines the aggregation group by the first method, the SMF may also send the QoS rules for the group session to the first terminal.

Wherein, when the first request is used to request to join the aggregation group, the QoS rule includes identification information of a session of the first terminal and second QoS information, and optionally, the QoS rule further includes the first indication information. In this case, the first terminal does not perceive the group session. That is, the first terminal and the base station perform data transceiving through the session of the first terminal, and the base station and the UPF perform data transceiving through the group session, where the session of the terminal and the session of the group have an association relationship, specifically expressed as the first association relationship.

Wherein, when the first request is used to request to establish a group session for the communication device, the QoS rule includes identification information of the group session and second QoS information, and optionally, the QoS rule further includes the first indication information. In this case, the first terminal perceives the group session. That is, the first terminal and the base station perform data transceiving through the group session, and the base station and the UPF also perform data transceiving through the group session. The second QFI corresponding to the group session between the terminal and the base station may be the same as or different from the first QFI corresponding to the group session between the base station and the UPF.

As an implementation method, in a case that the first request is used to request to establish a group session for the communication device, a trigger condition for triggering the first terminal to send the first request may be, for example: the first terminal receives a User Routing Selection Policy (URSP), wherein the URSP includes identification information of the communication equipment, and after detecting a data packet from the communication equipment, the first terminal sends the first request to the SMF according to the URSP. That is, the URSP triggers the first terminal to send a first request to the SMF to request establishment of the group session after detecting the data packet from the communication device.

If the SMF determines the aggregation group through the second method, as an implementation method, the SMF may further send a first message to the base station, where the first message includes identification information of the group session, identification information of the terminal in the aggregation group, third QoS information of the QoS flow of the group session, and fourth QoS information of the QoS flow of the terminal in the aggregation group, and the first message is used to request establishment of the group session. After receiving the first message, the base station may establish the group session according to the identification information of the group session. That is, the QoS flow of each terminal in the aggregation group corresponds to a fourth QoS information, and the fourth QoS information of different terminals may be the same or different, and is not limited.

Optionally, the third QoS information includes a third QFI and a third bandwidth parameter corresponding to the third QFI, where the third QFI is used to identify the QoS flow of the group session, and the third bandwidth parameter may include, for example, 5QI, GFBR, and MFBR. The fourth QoS information includes a fourth QFI for identifying QoS flows for sessions of terminals within the aggregated group.

Optionally, the first message may further include second indication information, where the second indication information indicates that a base station or a terminal in the aggregation group determines a fourth bandwidth parameter corresponding to a fourth QFI, and the fourth bandwidth parameter includes, for example, a GFBR. As an implementation method, the base station determines a fourth bandwidth parameter, for example, the base station determines a offloading policy according to the third bandwidth parameter and channel state information of the terminals in the aggregation group, where the offloading policy includes an offloading ratio of the terminals in the aggregation group, the base station determines the fourth bandwidth parameter according to the offloading policy, and then the base station sends the fourth bandwidth parameter to the terminals in the aggregation group. That is, for each terminal, the base station determines the offloading policy of the terminal according to the third bandwidth parameter and the channel state information of each terminal in the aggregation group, where the offloading policy includes an offloading ratio of the terminal, and thus the base station determines the fourth bandwidth parameter of the terminal according to the offloading ratio of the terminal. As another implementation method, the terminal determines a fourth bandwidth parameter, the base station sends the third bandwidth parameter and the split ratio of the terminal in the aggregation group to the terminal in the aggregation group, and then the terminal determines the fourth bandwidth parameter according to the third bandwidth parameter and the split ratio of the terminal. The fourth bandwidth parameter may include, for example, a GFBR corresponding to the terminal. That is, each terminal in the aggregation group determines the fourth bandwidth parameter of the terminal according to the third bandwidth parameter and the split ratio of the terminal. Illustratively, the GFBR included in the third bandwidth parameter is 100Mbps, the GFBR included in the fourth bandwidth is 50Mbps, and the split ratio of the terminal is 50%.

Optionally, when the group session is used between the terminal and the base station, the group session is also used between the base station and the UPF, and the third QFI of the QoS flow in the group session between the base station and the UPF is the same as the fourth QFI of the QoS flow in the group session between the terminal and the base station. In this case, after receiving the data packet from the communication device, the terminal in the aggregation group adds a fourth QFI to the data packet, and after receiving the data packet from the terminal, the base station sends the data packet to the UPF. Or the base station receives a data packet from the UPF, wherein the data packet comprises the third QFI, and then the base station directly sends the data packet to the terminal.

Optionally, the third QFI is different from the fourth QFI, where the group session is used between the terminal and the base station and the group session is also used between the base station and the UPF, or the group session is used between the terminal and the base station and the group session is used between the base station and the UPF, the first message further includes a second association relationship, and the second association relationship is used to indicate an association relationship between the third QFI and the fourth QFI. In this case, the communication device sends a data packet to the terminal in the aggregation group, where the data packet includes third data, the terminal adds a fourth QFI to the data packet after receiving the data packet to obtain a fifth data packet, and then sends the fifth data packet to the base station, and after receiving the first data packet, the base station generates a sixth data packet according to the first association relationship, where the sixth data packet includes the third QFI and the third data, and then the base station sends the sixth data packet to the UPF. Or, the UPF sends a seventh data packet to the base station, where the seventh data packet includes the third QFI and the fourth data, and after receiving the seventh data packet, the base station generates an eighth data packet according to the first association relation, where the eighth data packet includes the fourth QFI and the fourth data, and then the base station sends the eighth data packet to the terminals in the aggregation group. Therefore, when the third QFI is different from the fourth QFI, the base station needs to map the QFIs in the data packet according to the second association relationship.

If the SMF determines the aggregation group through the second method, the SMF may also send the QoS rule for the group session to the first terminal.

In an implementation method, the QoS rule includes identification information of a session of a terminal in the aggregation group and fourth QoS information, and optionally, the QoS rule further includes the second indication information. In this case, the terminals within the aggregation group are unaware of the group session. That is, data transmission and reception are performed between the terminal and the base station in the aggregation group through the session of the terminal, and data transmission and reception are performed between the base station and the UPF through the group session, and the session of the terminal and the session of the group have an association relationship, which is specifically represented by the second association relationship.

In another implementation method, the QoS rule includes identification information of the group session and fourth QoS information, and optionally, the QoS rule further includes the second indication information. In this case, the terminals within the aggregation group are aware of the group session. That is, the terminals in the aggregation group perform data transmission and reception with the base station through the group session, and the base station also performs data transmission and reception with the UPF through the group session. The fourth QFI corresponding to the group session between the terminal and the base station and the third QFI corresponding to the group session between the base station and the UPF may be the same or different.

As an implementation method, enabling terminals within an aggregation group to perceive a group session may be implemented by: the SMF sends a session establishment notification to the terminals in the aggregation group, wherein the session establishment notification contains identification information of the group session, and the session establishment notification is used for notifying the terminals in the aggregation group to initiate group session establishment. And the terminals in the aggregation group send session establishment requests to the SMF, wherein the session establishment requests comprise identification information of the group session, and the session establishment requests are used for requesting to establish the group session. I.e. a session establishment request is initiated by a terminal within the aggregated group, the terminal may perceive the group session.

As an implementation method, the SMF may determine the first bandwidth parameter or the third bandwidth parameter by: the SMF sends identification information and third indication information of the communication equipment to the PCF, the third indication information is used for requesting to establish the group session for the communication equipment, the PCF sends fourth indication information and QoS configuration of default QoS flow of the group session to the SMF, and the fourth indication information indicates that the group session can be established. Optionally, the QoS configuration of the default QoS flow of the group session includes default bandwidth parameters. The SMF may determine the first bandwidth parameter or the third bandwidth parameter according to the default bandwidth parameter.

As an implementation method, the base station may further send a offloading rule to the terminal in the aggregation group, where the offloading rule is used to instruct the terminal in the aggregation group to send an uplink data packet from the communication device, and/or instruct the terminal in the aggregation group to send a downlink data packet from the base station. The terminal may send an uplink data packet from the communication device to the base station and/or send a downlink data packet from the base station to the communication device according to the offloading rule. Exemplarily, the offloading rule corresponding to the terminal 1 instructs the terminal 1 to start sending from a data packet with a starting sequence number, and subsequently send 1 data packet every 2 sequence numbers, where taking the starting sequence number as 0 as an example, the sequence numbers of the data packets sent by the terminal 1 are 0,3,6,9, 12, \8230;, in sequence. In this example, the corresponding split ratio of terminal 1 is 33.3%.

The scheme in the embodiment of fig. 2 is described below with reference to specific examples.

Fig. 4 is a schematic diagram of a wireless communication method according to an embodiment of the present application. In this embodiment, the SMF determines the aggregation group by the first method, that is, the SMF determines whether to add the terminal to the group based on the request of the terminal. And in this embodiment, the terminal does not perceive the group session.

The method comprises the following steps:

in step 401, the af sends an aggregation request to the PCF.

The AF here may be an industrial server or an industrial controller, etc.

For example, the AF sends the aggregation request to the PCF via the NEF or UDR.

The aggregation request includes identification information of the communication device, qoS requirements, and a terminal list corresponding to the communication device.

The communication device is a device that needs to use the aggregation service, and the identification information of the communication device may be an address or an Identification (ID). The QoS requirements include information such as bandwidth requirements. The terminal list includes one or more terminals, which refer to terminals capable of providing the aggregation service for the communication device.

It should be noted that this step 401 is an optional step. When the step 401 is not executed, the operator may configure the identification information of the communication device, the QoS requirement, and the terminal list corresponding to the communication device on the PCF in a configuration manner.

In step 402, the terminal 1 sends a join request to the SMF, where the join request includes identification information of the terminal 1 and identification information of the communication device.

The join request is used for requesting to join an aggregation group providing an aggregation service for the communication device, and the aggregation group may include one or more terminals. The aggregation group is also referred to as a terminal group.

The terminal 1 may send an N1 message to the SMF, where the N1 message includes the join request.

The terminal 1 and the communication device are connected by wire or wireless, and thus can communicate by wire or wireless.

In step 403, the smf sends a session management policy (SM policy) request to the PCF, where the session management policy request includes the indication information and the identification information of the communication device.

The indication is used to request establishment of a group session for the communication device.

In step 404, the pcf sends a session management policy to the SMF, the session management policy including the indication information, the terminal list and the QoS flow configuration.

Wherein the indication information is used for indicating that the group session can be established or indicating that the group session is available. When the PCF is configured with the identification information of the communication device and the communication device corresponds to a terminal list, the PCF determines that the group session is available.

The terminal list is the terminal list in step 401 above, or a terminal list preconfigured by an operator, where the terminal list includes terminals capable of providing the aggregation service for the communication device.

The QoS Flow configuration is a QoS Flow configuration of a default QoS Flow corresponding to the group session, and the QoS Flow configuration includes a 5G QoS identifier (5G QoS identifier, 5qi) and bandwidth parameters, for example, the bandwidth parameters include a Guaranteed Flow Bit Rate (GFBR) and a Maximum Flow Bit Rate (MFBR). Where 5QI is used to characterize a QoS flow, and one 5QI corresponds to a set of characterization parameters. The PCF may refer to the QoS requirement described in step 401 when generating the QoS flow configuration.

At step 405, the smf allows terminal 1 to join the group session.

Specifically, if the SMF receives the terminal list, and indicates that the terminal list includes the terminal 1, the SMF authorizes the terminal 1 to join the aggregation group, and allows the terminal 1 to join the group session corresponding to the aggregation group.

It should be noted that if the group session is not established, the SMF needs to establish the group session.

At step 406, the smf assigns an identification of the group session.

Alternatively, the identification of the group session may be identification information of the communication device.

In step 407, the smf selects a UPF and configures an uplink forwarding rule based on the identification information of the communication device to the UPF.

And step 408, the UPF sends the shared uplink N3 port information distributed by the UPF to the SMF.

In step 409, the smf sends a join response to the base station requesting that a group session be established for the communication device.

The SMF may send an N2 message to the base station, the N2 message including the join response.

The join response includes an identifier of the group session, an aggregation group, QFI 1 allocated to the group session, qoS profiles (QoS profiles) corresponding to QFI 1, QFI2 allocated to the session of the terminal 1, qoS profiles corresponding to QFI2, indication information, and an association relationship.

Optionally, the join response further includes shared uplink N3 port information on the UPF corresponding to the group session.

Wherein the aggregation group includes terminals configured to provide an aggregation service to the communication device. Only terminal 1 is currently included in the aggregation group.

Optionally, the QoS profile corresponding to QFI 1 includes 5QI, GFBR and MFBR, where the 5QI, GFBR and MFBR may be respectively the same as the 5QI, GFBR and MFBR in the QoS flow configuration of the default QoS flow in step 404.

The QoS profile corresponding to QFI2 includes 5QI and MFBR. The 5QI contained in the QoS profile corresponding to QFI2 has a mapping relationship with the 5QI contained in the QoS profile corresponding to QFI 1, that is, according to the 5QI contained in the QoS profile corresponding to QFI 1, the 5QI contained in the QoS profile corresponding to QFI2 can be determined. The MFBR included in the QoS profile corresponding to QFI2 may be determined by the SMF according to the subscription information of the terminal 1 and the MFBR included in the QoS profile corresponding to QFI 1, where the subscription information of the terminal 1 may be obtained by the SMF from the UDM through the PCF, for example, which is not limited in this application. For example, the MFBR included in the QoS profile corresponding to QFI2 may be the smaller value of the MFBR included in the QoS profile corresponding to QFI 1 and the MFBR included in the subscription information of terminal 1. And the indication information added into the response is used for indicating that the base station determines the GFBR corresponding to the QFI 2.

The association relationship refers to an association relationship between a group session and a session of the terminal 1, or refers to an association relationship between QFI2 and QFI 1.

The shared upstream N3 port information on the UPF corresponding to the group session is assigned by the UPF in step 408 above.

In step 410, the smf configures to terminal 1, via the N1 message, the QoS rules for the group session, which apply to the QoS flows identified by QFI2 in the session of terminal 1.

The QoS rule includes an identifier of a session of the terminal 1, identification information of the communication device, QFI2, a QoS profile corresponding to QFI2, and indication information indicating that the base station or the terminal determines a GFBR corresponding to QFI 2.

Step 411, the base station configures AN access network resource (AN resource) for the terminal 1 and configures a offloading rule for the terminal 1.

The offloading rule is used to instruct the terminal 1 to send a rule of data packets, for example, instruct the terminal 1 to start sending an uplink data packet with a starting sequence number, and subsequently send 1 uplink data packet with every 2 sequence numbers, where taking the starting sequence number as 0 as an example, the sequence numbers of the uplink data packets sent by the terminal 1 are sequentially 0,3,6,9, 12, \ 8230; \8230;.

As an implementation method, the GFBR corresponding to QFI2 may be generated by the base station and then sent to terminal 1. For example, the base station determines a offloading policy of the group session according to a QoS profile corresponding to the QFI 1, channel state information of terminals in the aggregation group, and an Aggregation Maximum Bit Rate (AMBR) of the terminals in the aggregation group, where the offloading policy is used to indicate a proportion or a size of data streams of the group session on each terminal in the aggregation group. The base station may determine the GFBR corresponding to QFI2 according to the offloading policy, and then send the GFBR to the terminal 1.

As another implementation method, the terminal 1 may also determine the GFBR corresponding to the QFI2 according to the offloading scheduling information sent by the base station. For example, the offloading scheduling information sent by the base station to the terminal 1 includes indication information and a GFBR corresponding to the group session, for example, the indication information indicates that the terminal 1 needs to send half of traffic on the group session, and the GFBR corresponding to the group session is 100 megabits per second (Mbps), so that the terminal can calculate that the GFBR corresponding to QFI2 is 50Mbps.

Step 412, the base station allocates AN access network Tunnel (AN Tunnel), and sends information of the access network Tunnel to the SMF, where the access network Tunnel is used to receive downlink data of the group session.

The information of the access network tunnel comprises an identifier of the information of the access network tunnel.

In step 413, the smf sends the information of the access network tunnel to the UPF, establishes the N3 shared tunnel, and configures a downlink forwarding rule for the UPF, where the downlink forwarding rule indicates that the UPF sends a downlink data packet to be sent to the communication device through the N3 shared tunnel corresponding to the group session.

After the above operations are completed, subsequently, in the uplink direction, after the terminal 1 receives the uplink data packet from the communication device, QFI2 may be added to the packet header of the uplink data packet and sent to the base station through the session of the terminal 1, and after the base station receives the uplink data packet carrying QFI2, QFI 1 is added to the packet header of the uplink data packet according to the association relationship between QFI2 and QFI 1, and then the uplink data packet is sent to the UPF through the group session. The implementation method of "adding QFI 1 to the packet header of the uplink data packet" may, for example, replace QFI2 with QFI 1, that is, delete QFI2 and add QFI 1, or may directly add QFI2 instead of deleting QFI 1 that is already carried. In the downlink direction, the base station receives a downlink data packet from the UPF through a group session, the packet header of the downlink data packet contains QFI 1, the base station adds QFI2 to the packet header of the downlink data packet according to the association relationship between the QFI2 and the QFI 1, and then the downlink data packet is sent to the terminal 1 through the session of the terminal 1. That is, the base station and the terminal 1 transmit and receive the data packet through the session of the terminal 1, the base station and the UPF transmit and receive the data packet through the group session, and the terminal 1 does not sense the group session. The implementation method of "adding QFI2 to the packet header of the downlink data packet" may, for example, replace QFI 1 with QFI2, that is, delete QFI 1 and add QFI2, or may directly add QFI 1 instead of deleting QFI2 that is already carried.

After terminal 1 joins the aggregation group, there may be other terminals subsequently joined to the aggregation group. The following description will be made by taking an example in which the terminal 2 joins the aggregation group.

In step 414, terminal 2 sends a join request to SMF, where the join request includes the identification information of terminal 2 and the identification information of the communication device.

The join request is used to request to join an aggregation group that provides an aggregation service for the communication device, where the aggregation group currently already includes the terminal 1.

Terminal 2 may send an N1 message to the SMF, where the N1 message includes the join request.

The terminal 2 is connected to a communication device by wire or wireless, and thus can communicate by wire or wireless.

The smf allows terminal 2 to join the group session, step 415.

Specifically, the SMF determines that the terminal list includes the terminal 2 according to the terminal list received from the AF or according to the terminal list configured by the operator, and then the SMF authorizes the terminal 2 to join the aggregation group and allows the terminal 2 to join the group session corresponding to the aggregation group. Of course, if the terminal list does not include the terminal 2, the SMF does not authorize the terminal 2 to join the aggregation group, and does not allow the terminal 2 to join the group session corresponding to the aggregation group.

At step 416, the smf sends a join response to the base station requesting an update to the aggregation group.

The SMF may send an N2 message to the base station, the N2 message including a join response.

The join response includes the identifier of the group session, QFI3 allocated to the session of the terminal 2, qoS profile corresponding to QFI3, indication information, and association relationship.

The QoS profile corresponding to QFI3 includes 5QI and MFBR. The 5QI contained in the QoS profile corresponding to QFI3 has a mapping relationship with the 5QI contained in the QoS profile corresponding to QFI 1, that is, according to the 5QI contained in the QoS profile corresponding to QFI 1, the 5QI contained in the QoS profile corresponding to QFI3 can be determined. The MFBR included in the QoS profile corresponding to QFI3 may be determined by the SMF according to the subscription information of the terminal 2 and the MFBR included in the QoS profile corresponding to QFI 1, where the subscription information of the terminal 2 may be obtained by the SMF from the UDM through the PCF, for example, which is not limited in this application. For example, the MFBR included in the QoS profile corresponding to QFI3 may be a smaller value of the MFBR included in the QoS profile corresponding to QFI 1 and the MFBR included in the subscription information of terminal 2. And the indication information added into the response is used for indicating that the base station or the terminal determines the GFBR corresponding to the QFI 3.

The association relationship refers to an association relationship between a group session and a session of the terminal 2, or refers to an association relationship between QFI3 and QFI 1.

In step 417, the smf configures to terminal 2, via the N1 message, the QoS rules for the group session, which apply to the QoS flows identified by QFI3 in the session of terminal 2.

The QoS rule includes an identifier of a session of the terminal 2, identification information of the communication device, QFI3, a QoS profile corresponding to QFI3, and indication information indicating that the base station or the terminal determines a GFBR corresponding to QFI 3.

Step 418, the base station configures access network resources for terminal 1 and terminal 2 and configures a offloading rule for terminal 1 and terminal 2.

Since the aggregation group has the terminal 2 added, the access network resource configured for the terminal 1 in the foregoing step needs to be updated, and the offloading rule configured for the terminal 1 in the foregoing step also needs to be updated. And, the base station also needs to configure access network resources and offloading rules for the terminal 2.

The distribution rule configured for the terminal 1 is used to instruct the terminal 1 to send the rule of the uplink data packet, and the distribution rule configured for the terminal 2 is used to instruct the terminal 2 to send the rule of the uplink data packet. For example, the terminal 1 is instructed to start sending from the uplink data packet with the starting sequence number, and then 1 uplink data packet is sent every 1 sequence number, and the terminal 2 is instructed to start sending from a data packet after the starting sequence number, and then 1 uplink data packet is sent every 1 sequence number. Taking the initial sequence number of 0 as an example, the sequence numbers of the uplink data packets sent by the terminal 1 are 0,2,4,6,8, \ 8230 \ 8230;, the sequence numbers of the uplink data packets sent by the terminal 2 are 1,3,5,7,9, \ 8230; \ 8230;.

The manner of determining the GFBR corresponding to QFI2 and the GFBR corresponding to QFI3 may refer to the description of step 411. It should be noted that, different from the foregoing step 411, the aggregation group currently includes terminal 1 and terminal 2, and therefore when determining the GFBR corresponding to QFI2 and the GFBR corresponding to QFI3, the AMBR of terminal 2, the AMBR of terminal 3, the channel state information of terminal 2, and the channel state information of terminal 3 need to be combined at the same time.

In the above scheme, the terminal joins the aggregation group providing the aggregation service for the communication device by sending the joining request. The core network only maintains a shared group session, the base station can flexibly make a shunting strategy according to a QoS configuration file corresponding to the group session provided by the core network, meanwhile, the base station can associate QFI in the terminal session and QFI in the group session according to a session association relation provided by the core network, the terminal does not sense the group session, and data are still received and sent from the terminal session. Through the scheme, one communication device can directly communicate with a plurality of terminals in one aggregation group, and when part of the terminals in the aggregation group cannot continuously provide services for the communication device due to faults or overload and the like, other terminals in the aggregation group can still continuously provide services for the communication device, so that stable services can be provided for the communication device, and resource saving is facilitated.

Fig. 5 is a schematic diagram of a wireless communication method according to an embodiment of the present application. In this embodiment, the SMF determines the aggregation group by the second method, that is, the SMF actively determines the aggregation group. And in this embodiment, the terminal does not perceive the group session.

The method comprises the following steps:

in step 501, the af sends an aggregation request to the PCF.

This step is the same as step 401, and reference is made to the foregoing description.

This step 501 is an optional step.

In step 502a, the af sends a group session establishment request to the SMF, where the group session establishment request includes identification information of the communication device and a terminal list.

The group session establishment request is for requesting establishment of a group session for the communication device. Wherein, the terminal list includes one or more terminals, and the one or more terminals refer to terminals capable of providing the aggregation service for the communication device.

Step 502b, synchronization step 402, may refer to the foregoing description.

In steps 503 to 504, and in steps 403 to 404, reference is made to the above description.

The smf determines 505 an aggregation group and assigns an identification of the group session.

When the above step 502a is performed, the SMF may determine an aggregation group according to the location information of the terminals in the terminal list. For example, the terminal list received by the SMF from the AF includes terminal 1, terminal 2, and terminal 3. Then, the SMF queries the AMF for the location information of terminal 1, the location information of terminal 2, and the location information of terminal 3, for example, it is determined that terminal 1 and terminal 2 are connected to the same base station, and terminal 3 is connected to another base station, then the SMF may determine that terminal 1 and terminal 2 are included in the aggregation group, but terminal 3 is not included. Of course, the specific implementation of determining the aggregation group is described here only as an example, and there are many implementation methods for determining the aggregation group according to the location information of the terminal in practice, which are not limited.

When the step 502b is executed, the SMF may query the AMF for other terminals accessing to the same base station as the terminal 1 according to the identification information of the terminal 1, for example, if there is a terminal 2 under the base station accessed by the terminal 1, and then the SMF determines that the aggregation group includes the terminal 1 and the terminal 2.

For convenience of explanation, the configuration of the aggregation group including the terminal 1 and the terminal 2 will be described below as an example.

In step 506, the SMF selects a UPF according to the aggregation group.

Specifically, the SMF selects one UPF according to the location information of the terminals in the aggregation group.

In steps 507 to 508, as well as in steps 407 to 408, reference is made to the above description.

The smf sends a group configuration request to the base station requesting to establish a group session for the communication device, step 509.

The SMF may send an N2 message to the base station, the N2 message including a group configuration request.

The group configuration request includes an identifier of a group session, an aggregation group, QFI 1 allocated to the group session, a QoS configuration file (QoS profile) corresponding to QFI 1, QFI2 allocated to the session of terminal 1, a QoS configuration file corresponding to QFI2, QFI3 allocated to the session of terminal 2, a QoS configuration file corresponding to QFI3, indication information, and an association relationship.

Optionally, the group configuration request further includes shared uplink N3 port information on the UPF corresponding to the group session.

Wherein the aggregation group includes terminals configured to provide an aggregation service to the communication device.

Optionally, the QoS profile corresponding to QFI 1 includes 5QI, GFBR and MFBR, where the 5QI, GFBR and MFBR may be respectively the same as the 5QI, GFBR and MFBR in the QoS flow configuration of the default QoS flow in step 504.

The QoS profile corresponding to QFI2 includes 5QI and MFBR. The 5QI contained in the QoS profile corresponding to QFI2 has a mapping relationship with the 5QI contained in the QoS profile corresponding to QFI 1, that is, according to the 5QI contained in the QoS profile corresponding to QFI 1, the 5QI contained in the QoS profile corresponding to QFI2 can be determined. The MFBR included in the QoS profile corresponding to QFI2 may be determined by the SMF according to the subscription information of the terminal 1 and the MFBR included in the QoS profile corresponding to QFI 1, where the subscription information of the terminal 1 may be obtained by the SMF from the UDM through the PCF, for example, which is not limited in this application. For example, the MFBR included in the QoS profile corresponding to QFI2 may be a smaller value of the MFBR included in the QoS profile corresponding to QFI 1 and the MFBR included in the subscription information of the terminal 1.

The QoS profile corresponding to QFI3 contains 5QI and MFBR. The 5QI contained in the QoS configuration file corresponding to QFI3 has a mapping relationship with the 5QI contained in the QoS configuration file corresponding to QFI 1, that is, the 5QI contained in the QoS configuration file corresponding to QFI3 can be determined according to the 5QI contained in the QoS configuration file corresponding to QFI 1. The MFBR included in the QoS profile corresponding to QFI3 may be determined by the SMF according to the subscription information of the terminal 2 and the MFBR included in the QoS profile corresponding to QFI 1, where the subscription information of the terminal 2 may be obtained by the SMF from the UDM through the PCF, for example, which is not limited in this application. For example, the MFBR included in the QoS profile corresponding to QFI3 may be the smaller value of the MFBR included in the QoS profile corresponding to QFI 1 and the MFBR included in the subscription information of terminal 2.

The indication information in the group configuration request is used for indicating that the base station or the terminal determines the GFBRs respectively corresponding to QFI2 and QFI 3.

The association relationship refers to an association relationship between the group session and the session of the terminal 1 and the session of the terminal 2, or refers to an association relationship between QFI2 and QFI 1, and an association relationship between QFI3 and QFI 1. Alternatively, the association relationship refers to an association relationship between the group session and the sessions of the terminals in the aggregation group.

The shared upstream N3 port information on the UPF corresponding to the group session is assigned by the UPF in step 508 described above.

In step 510a, the smf configures to terminal 1, via the N1 message, the QoS rules for the group session that apply to the QoS flows identified by QFI2 in the session of terminal 1.

The QoS rule includes an identifier of a session of the terminal 1, identifier information of the communication device, QFI2, a QoS profile corresponding to the QFI2, and indication information, where the indication information is used to indicate that the base station or the terminal determines a GFBR corresponding to the QFI 2.

In step 510b, the smf configures to terminal 2, via an N1 message, the QoS rules for the group session that apply to the QoS flows identified by QFI3 in the session of terminal 2.

Step 511, the base station configures access network resources for terminal 1 and terminal 2 and configures a offloading rule for terminal 1 and terminal 2.

For a specific implementation process of this step, reference may be made to relevant descriptions of step 411 and step 418, and details are not described again.

In steps 512 to 513, and in steps 412 to 413, reference is made to the above description.

The embodiment of fig. 5 can achieve the same technical effects as the embodiment of fig. 4, and the main differences between the embodiment of fig. 5 and the embodiment of fig. 4 are: in the embodiment of fig. 5, the SMF may actively determine the aggregation group, and in the embodiment of fig. 4, each terminal requests to join the aggregation group.

Fig. 6 is a schematic diagram of a wireless communication method according to an embodiment of the present application. In this embodiment, the SMF determines the aggregation group by the first method, that is, the SMF determines whether to add the terminal to the group based on the request of the terminal. And in this embodiment, the terminal is aware of the group session.

The method comprises the following steps:

step 601 is the same as step 401.

In step 602, the terminal 1 sends a session establishment request to the SMF, where the session establishment request includes identification information of the terminal 1 and identification information of the communication device.

The session establishment request is for requesting establishment of a group session.

Before step 602, terminal 1 may receive a URSP from the PCF, where the URSP includes identification information of a communication device, and is used for terminal 1 to identify a data packet from the communication device. After detecting the data packet from the communication device, the terminal 1 triggers the transmission of the session establishment request to the SMF according to the URSP.

Step 603 to step 608, which are the same as the above step 403 to step 408.

Step 609, the smf sends a group configuration request to the base station, the group configuration request requesting to establish a group session for the communication device.

The group configuration request includes an identifier of the group session, an aggregation group, QFI 1 allocated to the group session, qoS configuration files (QoS profiles) corresponding to QFI 1, QFI2 allocated to the group session, qoS configuration files corresponding to QFI2, indication information, and an association relationship.

The above association relationship refers to an association relationship between QFI2 and QFI 1. It should be noted that, when QFI 1 and QFI2 are the same, the group configuration request may not necessarily include the association relationship.

Optionally, the QoS profile corresponding to the QFI 1 includes 5QI, GFBR and MFBR, where the 5QI, GFBR and MFBR may be respectively the same as the 5QI, GFBR and MFBR in the QoS flow configuration of the default QoS flow in the above step.

The QoS profile corresponding to QFI2 includes 5QI and MFBR. The 5QI contained in the QoS configuration file corresponding to QFI2 has a mapping relationship with the 5QI contained in the QoS configuration file corresponding to QFI 1, that is, the 5QI contained in the QoS configuration file corresponding to QFI2 can be determined according to the 5QI contained in the QoS configuration file corresponding to QFI 1. The MFBR included in the QoS profile corresponding to QFI2 may be determined by the SMF according to the subscription information of the terminal 1 and the MFBR included in the QoS profile corresponding to QFI 1, where the subscription information of the terminal 1 may be obtained by the SMF from the UDM through the PCF, for example, which is not limited in this application. For example, the MFBR included in the QoS profile corresponding to QFI2 may be a smaller value of the MFBR included in the QoS profile corresponding to QFI 1 and the MFBR included in the subscription information of the terminal 1. The indication information in the group configuration request is used for indicating that the base station or the terminal determines the GFBR corresponding to QFI 2.

The shared upstream N3 port information on the UPF corresponding to the group session is assigned by the UPF in the above step.

Step 610, the smf configures to terminal 1, through the N1 message, the QoS rules for the group session that apply to the QoS flow identified by QFI2 of the group session.

The QoS rule includes an identifier of the group session, identifier information of the communication device, QFI2, a QoS profile corresponding to QFI2, and indication information, where the indication information is used to indicate that the base station or the terminal determines a GFBR corresponding to QFI 2.

Steps 611 to 613, and steps 411 to 413.

In the case that QFI 1 is different from QFI2, after the above operations are completed, and subsequently, in the uplink direction, after the terminal 1 receives an uplink data packet from the communication device, QFI2 may be added to the packet header of the uplink data packet and sent to the base station through the session of the terminal 1, and after the base station receives the uplink data packet carrying QFI2, according to the association relationship between QFI2 and QFI 1, QFI 1 is added to the packet header of the uplink data packet, and then the uplink data packet is sent to the UPF through the group session. The implementation method of "adding QFI 1 to the packet header of the uplink data packet" may be, for example, replacing QFI2 with QFI 1, that is, deleting QFI2 and adding QFI 1, or may be directly adding QFI2 instead of deleting QFI 1 already carried. In the downlink direction, the base station receives a downlink data packet from the UPF through a group session, the packet header of the downlink data packet contains QFI 1, the base station adds QFI2 to the packet header of the downlink data packet according to the association relationship between QFI2 and QFI 1, and then the downlink data packet is sent to the terminal 1 through the session of the terminal 1. That is, the base station and the terminal 1 transmit and receive the data packet through the session of the terminal 1, the base station and the UPF transmit and receive the data packet through the group session, and the terminal 1 does not sense the group session. The implementation method of "adding QFI2 to the packet header of the downlink data packet" may, for example, replace QFI 1 with QFI2, that is, delete QFI 1 and add QFI2, or may directly add QFI 1 instead of deleting QFI2 that is already carried.

In step 614, terminal 2 sends a session establishment request to the SMF, where the session establishment request includes the identification information of terminal 2 and the identification information of the communication device.

The terminal 2 and the communication device are connected by a wired or wireless method, and thus can communicate by a wired or wireless method.

Before step 614, terminal 2 may receive the URSP from the PCF, where the URSP includes the identification information of the communication device, and is used for terminal 2 to identify the data packet from the communication device. After detecting the packet from the communication device, the terminal 2 triggers the transmission of the session establishment request to the SMF according to the URSP.

Step 615, synchronize step 415.

At step 616, the smf sends a group configuration request to the base station, the group configuration request requesting updating of the aggregation group.

The group configuration request includes an identifier of the group session, QFI3 allocated to the group session, a QoS configuration file corresponding to QFI3, indication information, and an association relationship.

The association relationship refers to an association relationship between QFI3 and QFI 1. It should be noted that, when QFI3 is the same as QFI 1, the association relationship may not be included in the group configuration request.

The QoS profile corresponding to QFI3 includes 5QI and MFBR. The 5QI contained in the QoS profile corresponding to QFI3 has a mapping relationship with the 5QI contained in the QoS profile corresponding to QFI 1, that is, according to the 5QI contained in the QoS profile corresponding to QFI 1, the 5QI contained in the QoS profile corresponding to QFI3 can be determined. The MFBR included in the QoS profile corresponding to QFI3 may be determined by the SMF according to the subscription information of the terminal 2 and the MFBR included in the QoS profile corresponding to QFI 1, where the subscription information of the terminal 2 may be obtained by the SMF from the UDM through the PCF, for example, which is not limited in this application. For example, the MFBR included in the QoS profile corresponding to QFI3 may be a smaller value of the MFBR included in the QoS profile corresponding to QFI 1 and the MFBR included in the subscription information of terminal 2. And the indication information added into the response is used for indicating that the base station determines the GFBR corresponding to the QFI 3.

Step 617, the smf configures to terminal 2, via the N1 message, the QoS rules for the group session that apply to the QoS flow identified by QFI3 of the group session.

The QoS rule includes an identifier of the group session, identification information of the communication device, QFI3, a QoS profile corresponding to QFI3, and indication information indicating that the base station or the terminal determines a GFBR corresponding to QFI 3.

Step 618, synchronize step 418.

The embodiment of fig. 6 can achieve the same technical effect as the embodiment of fig. 4, and the main differences between the embodiment of fig. 6 and the embodiment of fig. 4 are: each terminal in the aggregation group in the embodiment of fig. 6 senses the group session, and the terminal and the base station transmit and receive data through the group session, that is, after receiving the data packet of the communication device, the terminal transmits the data packet to the base station through the group session, and the base station transmits the data packet to the UPF through the group session, where QFI (such as QFI2 and QFI 3) corresponding to the group session between the terminal and the base station may be the same as or different from QFI (such as QFI 1) corresponding to the group session between the base station and the UPF. However, each terminal in the aggregation group in the embodiment of fig. 4 does not sense the group session, and the terminal and the base station transceive data through the session of the terminal.

Fig. 7 is a schematic diagram of a wireless communication method according to an embodiment of the present application. In this embodiment, the SMF determines the aggregation group by the second method, that is, the SMF actively determines the aggregation group. And in this embodiment, the terminal is aware of the group session.

The method comprises the following steps:

step 701, step 501 is synchronized.

Step 702a to step 702b, and step 502a to step 502b.

Step 703 to step 705, as well as step 503 to step 505.

Step 706a, smf sends to terminal 1 a session establishment notification including identification information of the group session and identification information of the communication device, the session establishment notification being used to instruct terminal 1 to initiate group session establishment.

Step 706b, the smf sends to terminal 2a session establishment notification including identification information of the group session and identification information of the communication device, the session establishment notification being for instructing terminal 2 to initiate the group session establishment.

In step 707a, the terminal 1 sends a session establishment request to the SMF, where the session establishment request includes identification information of the group session and identification information of the terminal 1, and the session establishment request is used to request establishment of the group session.

In step 707b, the terminal 2 sends a session establishment request to the SMF, where the session establishment request includes identification information of the group session and identification information of the terminal 2, and the session establishment request is used to request to establish the group session.

From 708 to 710, as well as from 506 to 508.

In step 711, the smf sends a group configuration request to the base station requesting that a group session be established for the communication device.

The group configuration request includes an identifier of the group session, an aggregation group, QFI 1 allocated to the group session, a QoS configuration file (QoS profile) corresponding to QFI 1, QFI2 allocated to the group session, a QoS configuration file corresponding to QFI2, QFI3 allocated to the group session, a QoS configuration file corresponding to QFI3, indication information, and an association relationship.

The association relationship refers to the association relationship between QFI2 and QFI 1, and the association relationship between QFI3 and QFI 1. It should be noted that, when QFI 1 and QFI2 are the same, the association relationship between QFI2 and QFI 1 need not be indicated in the group configuration request. When QFI 1 and QFI3 are the same, the association relationship between QFI3 and QFI 1 need not be indicated in the group configuration request.

Optionally, the QoS profile corresponding to QFI 1 includes 5QI, GFBR and MFBR, where the 5QI, GFBR and MFBR may be respectively the same as the 5QI, GFBR and MFBR in the QoS flow configuration of the default QoS flow in the above step.

The QoS profile corresponding to QFI2 includes 5QI and MFBR. The 5QI contained in the QoS configuration file corresponding to QFI2 has a mapping relationship with the 5QI contained in the QoS configuration file corresponding to QFI 1, that is, the 5QI contained in the QoS configuration file corresponding to QFI2 can be determined according to the 5QI contained in the QoS configuration file corresponding to QFI 1. The MFBR included in the QoS profile corresponding to QFI2 may be determined by the SMF according to the subscription information of the terminal 1 and the MFBR included in the QoS profile corresponding to QFI 1, where the subscription information of the terminal 1 may be obtained by the SMF from the UDM through the PCF, for example, which is not limited in this application. For example, the MFBR included in the QoS profile corresponding to QFI2 may be the smaller value of the MFBR included in the QoS profile corresponding to QFI 1 and the MFBR included in the subscription information of terminal 1.

The QoS profile corresponding to QFI3 includes 5QI and MFBR. The 5QI contained in the QoS configuration file corresponding to QFI3 has a mapping relationship with the 5QI contained in the QoS configuration file corresponding to QFI 1, that is, the 5QI contained in the QoS configuration file corresponding to QFI3 can be determined according to the 5QI contained in the QoS configuration file corresponding to QFI 1. The MFBR included in the QoS profile corresponding to QFI3 may be determined by the SMF according to the subscription information of the terminal 2 and the MFBR included in the QoS profile corresponding to QFI 1, where the subscription information of the terminal 2 may be obtained by the SMF from the UDM through the PCF, for example, which is not limited in this application. For example, the MFBR included in the QoS profile corresponding to QFI3 may be the smaller value of the MFBR included in the QoS profile corresponding to QFI 1 and the MFBR included in the subscription information of terminal 2.

Step 712a, the smf configures to terminal 1, through the N1 message, the QoS rules for the group session that apply to the QoS flows identified by QFI2 of the group session.

The QoS rule includes an identifier of the group session, identification information of the communication device, QFI2, a QoS profile corresponding to QFI2, and indication information, where the indication information is used to indicate that the base station or the terminal determines a GFBR corresponding to QFI 2.

Step 712b, the smf configures to terminal 2, via the N1 message, the QoS rules for the group session that apply to the QoS flows identified by QFI3 of the group session.

Step 713 to step 715, as in step 511 to step 513.

The embodiment of fig. 7 can achieve the same technical effects as the embodiment of fig. 5, and the main differences between the embodiment of fig. 7 and the embodiment of fig. 5 are: each terminal in the aggregation group in the embodiment of fig. 7 perceives the group session, and the terminal and the base station transmit and receive data through the group session, that is, after receiving the data packet of the communication device, the terminal transmits the data packet to the base station through the group session, and the base station transmits the data packet to the UPF through the group session, where QFI (such as QFI2 and QFI 3) corresponding to the group session between the terminal and the base station may be the same as or different from QFI (such as QFI 1) corresponding to the group session between the base station and the UPF. However, each terminal in the aggregation group in the embodiment of fig. 5 does not sense the group session, and the terminal and the base station transmit and receive data through the session of the terminal.

It is to be understood that, in order to implement the functions in the foregoing embodiments, the base station, the session management network element, the policy control network element, the user plane network element and the terminal include hardware structures and/or software modules corresponding to the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and method steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software driven hardware depends on the particular application scenario and design constraints imposed on the solution.

Fig. 8 and 9 are schematic structural diagrams of a possible communication device provided in an embodiment of the present application. These communication devices can be used to implement the functions of the base station, the session management network element, the policy control network element, the user plane network element, and the terminal in the above method embodiment, so that the beneficial effects of the above method embodiment can also be achieved. In the embodiment of the present application, the communication device may be a base station, a session management network element, a policy control network element, a user plane network element, and a terminal, or may be a module (e.g., a chip) applied to the base station, the session management network element, the policy control network element, the user plane network element, and the terminal.

As shown in fig. 8, the communication device 800 includes a processing unit 810 and a transceiving unit 820. The communication apparatus 800 is configured to implement the functions of the base station, the session management network element, the policy control network element, the user plane network element, and the terminal in the method embodiments shown in fig. 2 and fig. 4 to fig. 7.

When the communication apparatus 800 is used to implement the functions of the session management network element in the method embodiments shown in fig. 2,4 to 7: a processing unit 810, configured to generate an identifier of a group session corresponding to an aggregation group, where the aggregation group includes at least two terminals, the at least two terminals are in communication connection with a communication device, and the at least two terminals provide an aggregation service for the communication device; and establishing the group session according to the identifier of the group session.

In a possible implementation method, the transceiving unit 820 is configured to receive a first request from a first terminal, where the first request includes identification information of the first terminal and identification information of the communication device, and the first request is used to request to join the aggregation group or to request to establish a group session for the communication device; a processing unit 810, configured to determine that the first terminal is included in a terminal list, and authorize the first terminal to join the aggregation group, where the terminal list includes terminals capable of providing an aggregation service for the communication device.

In a possible implementation method, the transceiving unit 820 is configured to send a first message to the radio access network device, where the first message includes identification information of the group session, identification information of the first terminal, first QoS information of a QoS flow of the group session, and second QoS information of a QoS flow of a session of the first terminal, and the first message is used to request to establish the group session.

In a possible implementation method, the transceiving unit 820 is configured to send the QoS rule for the group session to the first terminal; wherein, when the first request is used for requesting to join the aggregation group, the QoS rule includes the identification information of the session of the first terminal and the second QoS information; alternatively, in a case where the first request is for requesting establishment of a group session for the communication device, the QoS rule includes identification information of the group session and the second QoS information. Optionally, the QoS rule further includes the first indication information.

In a possible implementation method, the transceiving unit 820 is configured to receive a group session establishment request from an application function network element, where the group session establishment request includes identification information of the communication device and a terminal list, and the terminal list includes terminals capable of providing an aggregation service for the communication device; a processing unit 810, configured to determine the aggregation group according to location information of terminals in the terminal list, where the at least two terminals included in the aggregation group are all from the terminal list.

In a possible implementation method, the transceiving unit 820 is configured to receive a join request from a first terminal, where the join request includes identification information of the first terminal and identification information of the communication device, and the join request is used to request to join the aggregation group; a processing unit 810, configured to determine the aggregation group according to the location information of the first terminal, where the at least two terminals included in the aggregation group include the first terminal, and the at least two terminals access to the same radio access network device.

In a possible implementation method, the transceiving unit 820 is configured to send a first message to the radio access network device, where the first message includes identification information of the group session, identification information of terminals in the aggregation group, third QoS information of QoS flows of the group session, and fourth QoS information of QoS flows of terminals in the aggregation group.

In a possible implementation method, the transceiving unit 820 is configured to send a QoS rule for the group session to the terminals in the aggregation group, where the QoS rule includes the identification information of the session of the terminal and the fourth QoS information. Optionally, the QoS rule further includes the second indication information.

In a possible implementation method, the transceiving unit 820 is configured to send a QoS rule for the group session to the terminals in the aggregation group, where the QoS rule includes the identification information of the group session and the fourth QoS information.

In a possible implementation method, the transceiving unit 820 is configured to send a session establishment notification to the terminals in the aggregation group, where the session establishment notification includes identification information of the group session, and the session establishment notification is used to notify the terminals in the aggregation group to initiate group session establishment; receiving a session establishment request from a terminal in the aggregation group, wherein the session establishment request comprises identification information of the group session, and the session establishment request is used for requesting to establish the group session.

In a possible implementation method, the transceiving unit 820 is configured to send identification information and third indication information of the communication device to a policy control network element, where the third indication information is used to request to establish a group session for the communication device; and receiving fourth indication information from the policy control network element and the QoS configuration of the default QoS flow of the group session, wherein the fourth indication information indicates that the group session can be established.

When the communication apparatus 800 is used to implement the functionality of the base station in the method embodiments shown in fig. 4 to 7: a transceiving unit 820, configured to receive a first message from a session management network element, where the first message includes identification information of a group session corresponding to an aggregation group, and the first message is used to request to establish the group session; the aggregation group comprises at least two terminals, the at least two terminals are in communication connection with the communication equipment, and the at least two terminals provide aggregation service for the communication equipment; the processing unit 810 is configured to establish the group session according to the identification information of the group session.

In a possible implementation method, the processing unit 810 is configured to determine an offloading policy according to the first bandwidth parameter and the channel state information of the first terminal, where the offloading policy includes an offloading proportion of the first terminal; determining the second bandwidth parameter according to the shunting strategy; a transceiving unit 820, configured to send the second bandwidth parameter to the first terminal.

In a possible implementation method, the transceiver 820 is configured to send the first bandwidth parameter and the split ratio of the first terminal to the first terminal, where the first bandwidth parameter and the split ratio of the first terminal are used to determine the second bandwidth parameter.

In a possible implementation method, the transceiving unit 820 is configured to receive a first data packet from the first terminal, where the first data packet includes the second QFI and the first data from the communication device; a processing unit 810, configured to generate a second data packet according to the first association relationship, where the second data packet includes the first QFI and the first data; a transceiving unit 820, configured to send the second data packet to a user plane network element.

In a possible implementation method, the transceiving unit 820 is configured to receive a third data packet from a user plane network element, where the third data packet includes the first QFI and the second data; the processing unit 810 is configured to generate a fourth data packet according to the first association relationship, where the fourth data packet includes the second QFI and the second data; a transceiving unit 820, configured to send the fourth data packet to the first terminal.

In a possible implementation method, the processing unit 810 is configured to determine a offloading policy according to the third bandwidth parameter and channel state information of the terminals in the aggregation group, where the offloading policy includes an offloading ratio of the terminals in the aggregation group; determining the fourth bandwidth parameter according to the shunting strategy; a transceiving unit 820, configured to send the fourth bandwidth parameter to the terminals in the aggregation group.

In a possible implementation method, the transceiver 820 is configured to send the third bandwidth parameter and the split ratio of the terminals in the aggregation group to the terminals in the aggregation group, where the third bandwidth parameter and the split ratio of the terminals in the aggregation group are used to determine the fourth bandwidth parameter.

In a possible implementation method, the transceiving unit 820 is configured to receive a fifth data packet from the terminal in the aggregation group, where the fifth data packet includes the fourth QFI and the third data from the communication device; a processing unit 810, configured to generate a sixth data packet according to the second association relationship, where the sixth data packet includes the third QFI and the third data; a transceiving unit 820, configured to send the sixth data packet to the user plane network element.

In a possible implementation method, the transceiving unit 820 is configured to receive a seventh data packet from a user plane network element, where the seventh data packet includes the third QFI and the fourth data; the processing unit 810 is configured to generate an eighth data packet according to the second association relationship, where the eighth data packet includes the fourth QFI and the fourth data; a transceiving unit 820, configured to send the eighth data packet to the terminals in the aggregation group.

In a possible implementation method, the transceiver 820 is configured to send a offloading rule to a terminal in the aggregation group, where the offloading rule is used to instruct the terminal to send a rule of an uplink data packet from the communication device and/or instruct the terminal to send a rule of a downlink data packet from the radio access network device.

When the communication apparatus 800 is used to implement the functions of the terminal in the method embodiments shown in fig. 4 to 7: a transceiving unit 820, configured to receive a offloading rule from a radio access network device, where the offloading rule is used to instruct the terminal to send a rule of an uplink data packet from a communication device, and/or instruct the terminal to send a rule of a downlink data packet from the radio access network device; a processing unit 810, configured to send, according to the offloading rule, an uplink data packet from the communication device to the radio access network device and/or send a downlink data packet from the radio access network device to the communication device through the transceiving unit 820.

In a possible implementation method, the transceiving unit 820 is configured to send a first request to a session management network element, where the first request includes identification information of the terminal and identification information of the communication device; receiving a QoS rule for a group session from the session management network element; wherein, in case that the first request is for requesting to join the aggregation group, the QoS rule includes identification information of a session of the terminal and QoS information of the terminal; or, in a case where the first request is for requesting establishment of a group session for the communication device, the QoS rule includes identification information of the group session and QoS information of the terminal, the QoS information including QFI. Optionally, the QoS rule further includes indication information for indicating that the radio access network device or the terminal determines the bandwidth parameter corresponding to the QFI.

In a possible implementation method, the transceiver 820 is configured to receive a bandwidth parameter corresponding to the group session from the radio access network device and an offload ratio of the terminal; the processing unit 810 is configured to determine the bandwidth parameter corresponding to the QFI according to the bandwidth parameter corresponding to the group session and the split fraction of the terminal.

In a possible implementation method, the transceiving unit 820 is configured to receive a URSP in a case where the first request is for requesting to establish a group session for the communication device, where the URSP includes identification information of the communication device; a processing unit 810, configured to send the first request to the session management network element through the transceiving unit 820 according to the URSP after detecting the data packet from the communication device.

In a possible implementation method, the transceiving unit 820 is configured to receive a session establishment notification from a session management network element in a case that the first request is used to request to establish a group session for the communication device, where the session establishment notification includes identification information of the group session, and the session establishment notification is used to notify the terminal to initiate group session establishment; the first request also includes identification information of the group session.

More detailed descriptions about the processing unit 810 and the transceiver 820 can be directly obtained by referring to the related descriptions in the method embodiments shown in fig. 2 and fig. 4 to fig. 7, which are not repeated herein.

As shown in fig. 9, the communication device 900 includes a processor 910 and an interface circuit 920. The processor 910 and the interface circuit 920 are coupled to each other. It is understood that the interface circuit 920 may be a transceiver or an input-output interface. Optionally, the communication device 900 may further include a memory 930 for storing instructions to be executed by the processor 910 or for storing input data required by the processor 910 to execute the instructions or for storing data generated by the processor 910 after executing the instructions.

When the communication device 900 is used to implement the methods shown in fig. 2,4 to 7, the processor 910 is configured to implement the functions of the processing unit 810, and the interface circuit 920 is configured to implement the functions of the transceiving unit 820.

When the communication device is a chip applied to a terminal, the terminal chip realizes the functions of the terminal in the method embodiment. The terminal chip receives information from other modules (such as a radio frequency module or an antenna) in the terminal, and the information is sent to the terminal by the base station; alternatively, the terminal chip sends information to other modules in the terminal (such as a radio frequency module or an antenna), and the information is sent by the terminal to the base station.

When the communication device is a chip applied to a base station, the base station chip implements the functions of the base station in the above method embodiments. The base station chip receives information from other modules (such as a radio frequency module or an antenna) in the base station, and the information is sent to the base station by the terminal; alternatively, the base station chip sends information to other modules (such as a radio frequency module or an antenna) in the base station, and the information is sent by the base station to the terminal.

It is understood that the Processor in the embodiments of the present Application may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a transistor logic device, a hardware component, or any combination thereof. The general purpose processor may be a microprocessor, but may be any conventional processor.

The method steps in the embodiments of the present application may be implemented by hardware, or may be implemented by software instructions executed by a processor. The software instructions may be comprised of corresponding software modules that may be stored in random access memory, flash memory, read only memory, programmable read only memory, erasable programmable read only memory, electrically erasable programmable read only memory, registers, a hard disk, a removable hard disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may reside in a base station or a terminal. Of course, the processor and the storage medium may reside as discrete components in a base station or terminal.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, a base station, user equipment, or other programmable device. The computer program or instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer program or instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire or wirelessly. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that integrates one or more available media. The usable medium may be a magnetic medium, such as a floppy disk, hard disk, magnetic tape; optical media such as digital video disks; but also semiconductor media such as solid state disks. The computer readable storage medium may be volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

In the embodiments of the present application, unless otherwise specified or conflicting with respect to logic, the terms and/or descriptions in different embodiments have consistency and may be mutually cited, and technical features in different embodiments may be combined to form a new embodiment according to their inherent logic relationship.

In the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. In the text description of the present application, the character "/" generally indicates that the preceding and following associated objects are in an "or" relationship; in the formula of the present application, the character "/" indicates that the preceding and following associated objects are in a "division" relationship.

It is to be understood that the various numerical references referred to in the embodiments of the present application are merely for convenience of description and distinction and are not intended to limit the scope of the embodiments of the present application. The sequence numbers of the above processes do not mean the execution sequence, and the execution sequence of the processes should be determined by the functions and the inherent logic.

Claims

1. A wireless communication method applied to a session management network element, comprising:

generating an identifier of a group session corresponding to an aggregation group, wherein the aggregation group comprises at least two terminals, the at least two terminals are in communication connection with communication equipment, and the at least two terminals provide an aggregation service for the communication equipment;

and establishing the group session according to the identifier of the group session.

2. The method of claim 1, further comprising:

receiving a first request from a first terminal, wherein the first request comprises identification information of the first terminal and identification information of the communication equipment, and the first request is used for requesting to join the aggregation group or requesting to establish a group session for the communication equipment;

and if the first terminal is determined to be included in the terminal list, authorizing the first terminal to join the aggregation group, wherein the terminal list includes terminals capable of providing the aggregation service for the communication equipment.

3. The method of claim 2, further comprising:

sending a first message to a wireless access network device, where the first message includes identification information of the group session, identification information of the first terminal, first QoS information of a QoS flow of the group session, and second QoS information of a QoS flow of a session of the first terminal, and the first message is used to request establishment of the group session.

4. The method of claim 3,

the first QoS information comprises a first QoS flow identifier QFI and a first bandwidth parameter corresponding to the first QFI;

the second QoS information includes a second QFI.

5. The method of claim 4,

the first message further includes first indication information indicating that the radio access network device or the first terminal determines a second bandwidth parameter corresponding to the second QFI.

6. The method of claim 5,

the first message also contains a first incidence relation, and the first incidence relation is used for indicating the incidence relation between the first QFI and the second QFI; or,

the first QFI is the same as the second QFI.

7. The method of any of claims 4 to 6, further comprising:

sending QoS rules for the group session to the first terminal;

wherein, when the first request is used for requesting to join the aggregation group, the QoS rule includes identification information of a session of the first terminal and the second QoS information; or,

the QoS rule includes identification information of the group session and the second QoS information, if the first request is for requesting establishment of a group session for the communication device.

8. The method of claim 1, further comprising:

receiving a group session establishment request from an application function network element, wherein the group session establishment request comprises identification information of the communication equipment and a terminal list, and the terminal list comprises terminals capable of providing aggregation service for the communication equipment;

and determining the aggregation group according to the position information of the terminals in the terminal list, wherein the at least two terminals included in the aggregation group are all from the terminal list.

9. The method of claim 1, further comprising:

receiving a joining request from a first terminal, wherein the joining request comprises identification information of the first terminal and identification information of the communication equipment, and the joining request is used for requesting to join the aggregation group;

and determining the aggregation group according to the position information of the first terminal, wherein the at least two terminals included in the aggregation group include the first terminal, and the at least two terminals access to the same wireless access network device.

10. The method of claim 8 or 9, further comprising:

and sending a first message to a wireless access network device, wherein the first message comprises the identification information of the group session, the identification information of the terminals in the aggregation group, the third QoS information of the QoS flow of the group session and the fourth QoS information of the QoS flow of the terminals in the aggregation group.

11. The method of claim 10,

the third QoS information comprises a third QFI and a third bandwidth parameter corresponding to the third QFI;

the fourth QoS information includes a fourth QFI.

12. The method of claim 11, wherein the first message further includes second indication information indicating that a fourth bandwidth parameter corresponding to the fourth QFI is determined by the wireless access network device or a terminal within the aggregation group.

13. The method of claim 11 or 12,

the first message also contains a second incidence relation, and the second incidence relation is used for indicating the incidence relation between the third QFI and the fourth QFI; or,

the third QFI is the same as the fourth QFI.

14. The method of any of claims 11 to 13, further comprising:

and sending a QoS rule for the group session to the terminals in the aggregation group, wherein the QoS rule comprises the identification information of the session of the terminal and the fourth QoS information.

15. The method of any of claims 11 to 13, further comprising:

and sending a QoS rule for the group session to the terminals in the aggregation group, wherein the QoS rule comprises the identification information of the group session and the fourth QoS information.

16. A wireless communication method applied to a wireless access network device is characterized by comprising the following steps:

receiving a first message from a session management network element, wherein the first message contains identification information of a group session corresponding to an aggregation group, and the first message is used for requesting to establish the group session; the aggregation group comprises at least two terminals, the at least two terminals are in communication connection with communication equipment, and the at least two terminals provide aggregation service for the communication equipment;

and establishing the group session according to the identification information of the group session.

17. The method of claim 16,

the first message further contains identification information of a first terminal, first QoS information of a QoS flow of the group session and second QoS information of a QoS flow of the session of the first terminal;

the second QoS information includes a second QFI.

18. The method of claim 17,

19. The method of claim 18, further comprising:

determining a distribution strategy according to the first bandwidth parameter and the channel state information of the first terminal, wherein the distribution strategy comprises a distribution ratio of the first terminal;

determining the second bandwidth parameter according to the shunting strategy;

and sending the second bandwidth parameter to the first terminal.

20. The method of claim 18, further comprising:

and sending the first bandwidth parameter and the split ratio of the first terminal to the first terminal, wherein the first bandwidth parameter and the split ratio of the first terminal are used for determining the second bandwidth parameter.

21. The method of any one of claims 17 to 20,

the first message also contains a first incidence relation, and the first incidence relation is used for indicating the incidence relation between the first QFI and the second QFI; or, the first QFI is the same as the second QFI;

the method further comprises the following steps:

receiving a first data packet from the first terminal, wherein the first data packet comprises the second QFI and first data from the communication device;

generating a second data packet according to the first association relation, wherein the second data packet comprises the first QFI and the first data;

and sending the second data packet to a user plane network element.

22. The method of claim 16,

the first message also includes identification information of terminals within the aggregation group, third QoS information of QoS flows of the group session, and fourth QoS information of QoS flows of terminals within the aggregation group;

the third QoS information comprises a third QFI and a third bandwidth parameter corresponding to the third QFI; the fourth QoS information comprises a fourth QFI;

the method further comprises the following steps:

determining a distribution strategy according to the third bandwidth parameter and the channel state information of the terminals in the aggregation group, wherein the distribution strategy comprises the distribution ratio of the terminals in the aggregation group;

determining the fourth bandwidth parameter according to the shunting strategy;

sending the fourth bandwidth parameter to terminals within the aggregation group.

23. The method of claim 22, further comprising:

and sending the third bandwidth parameter and the split ratio of the terminals in the aggregation group to the terminals in the aggregation group, wherein the third bandwidth parameter and the split ratio of the terminals in the aggregation group are used for determining the fourth bandwidth parameter.

24. The method of any of claims 16 to 23, further comprising:

and sending a distribution rule to the terminals in the aggregation group, wherein the distribution rule is used for indicating a rule that the terminals send uplink data packets from the communication equipment and/or indicating a rule that the terminals send downlink data packets from the wireless access network equipment.

25. A wireless communication method applied to a terminal is characterized by comprising the following steps:

receiving a shunting rule from a wireless access network device, wherein the shunting rule is used for indicating a rule that the terminal sends an uplink data packet from a communication device and/or indicating a rule that the terminal sends a downlink data packet from the wireless access network device;

and sending an uplink data packet from the communication equipment to the wireless access network equipment and/or sending a downlink data packet from the wireless access network equipment to the communication equipment according to the shunting rule.

26. The method of claim 25, further comprising:

sending a first request to a session management network element, wherein the first request comprises the identification information of the terminal and the identification information of the communication equipment;

receiving a quality of service (QoS) rule for a group session from the session management network element;

wherein, when the first request is used for requesting to join the aggregation group, the QoS rule includes identification information of a session of the terminal and QoS information of the terminal; or,

and in the case that the first request is used for requesting to establish a group session for the communication device, the QoS rule includes identification information of the group session and QoS information of the terminal, and the QoS information includes a quality of service identification QFI.

27. The method of claim 26, further comprising:

receiving bandwidth parameters corresponding to the group session from the wireless access network equipment and the split ratio of the terminal;

and determining the bandwidth parameter corresponding to the QFI according to the bandwidth parameter corresponding to the group session and the distribution ratio of the terminal.

28. The method of claim 26 or 27, wherein in the case that the first request is for establishing a group session for the communication device, the method further comprises:

receiving a user routing policy (URSP), wherein the URSP comprises identification information of the communication equipment;

the sending the first request to the session management network element includes:

and after detecting the data packet from the communication equipment, sending the first request to the session management network element according to the URSP.

29. The method of any of claims 26 to 28, wherein in the case where the first request is for establishing a group session for the communication device, the method further comprises:

receiving a session establishment notification from a session management network element, wherein the session establishment notification includes identification information of the group session, and the session establishment notification is used for notifying the terminal to initiate group session establishment;

the first request also includes identification information of the group session.

30. A communications device comprising means for performing a method as claimed in any one of claims 1 to 15, or means for performing a method as claimed in any one of claims 16 to 24, or means for performing a method as claimed in any one of claims 25 to 29.