WO2022257629A1

WO2022257629A1 - Wireless communication method and communication apparatus

Info

Publication number: WO2022257629A1
Application number: PCT/CN2022/089310
Authority: WO
Inventors: 王亚鑫; 余芳; 李岩
Original assignee: 华为技术有限公司
Priority date: 2021-06-07
Filing date: 2022-04-26
Publication date: 2022-12-15
Also published as: CN115515081B; CN115515081A

Abstract

A wireless communication method and communication apparatus. The method comprises: 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 communicatively connected to a communication device; 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 this solution, the communication device can be communicatively connected to a plurality of terminals, so that the plurality of terminals can offload data of the communication device, thereby achieving a large traffic requirement of the communication device. In addition, the plurality of terminals may be backed up for each other. When some of the terminals fail or are heavy in load, other terminals can still provide services for the communication device. Therefore, the reliability requirement of the communication device can also be met.

Description

A wireless communication method and communication device

Cross References to Related Applications

This application claims the priority of the Chinese patent application with the application number 202110633850.5 and the application name "A Wireless Communication Method and Communication Device" submitted to the China Patent Office on June 07, 2021, the entire contents of which are incorporated in this application by reference middle.

technical field

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

Background technique

In some application scenarios, communication devices, such as industrial devices in industrial applications, do not directly communicate with the network, but communicate with the network through terminals. In the uplink direction, the communication device sends uplink data to the terminal, and the terminal sends it to the network. In the downlink direction, the terminal receives downlink data from the network that needs to be sent to the communication device, and sends the downlink data to the communication device.

At present, with the improvement of the capability of a communication device, the communication device has the requirement of reliability and large flow. However, the capability of the terminal connected to the communication device has an upper limit, and the terminal also has the possibility of failure, so that the requirements of the communication device for reliability and large flow cannot be met.

Contents of the invention

Embodiments of the present application provide a wireless communication method and a communication device, so as to meet the requirements of communication equipment for reliability and large traffic.

In a first aspect, the embodiment of the present application provides a wireless communication method, and the method may be executed by a session management network element or a module (such as a chip) applied to the session management network element. The method includes: generating an identifier of a group session corresponding to an aggregation group, the aggregation group includes at least two terminals, the at least two terminals are communicatively connected to a communication device, and the at least two terminals provide aggregation services for the communication device ; Establish the group session according to the identifier of the group session.

According to the solution above, the communication device can communicate with multiple terminals, so that the multiple terminals can offload the data of the communication device, so that the large traffic demand of the communication device can be realized. Moreover, the multiple terminals can serve as backups for each other, and when some terminals fail or are overloaded, other terminals still provide services for the communication device, so the corresponding reliability requirements of the communication device can also be met.

In a possible implementation method, a first request from a first terminal is received, the first request includes the identification information of the first terminal and the identification information of the communication device, and the first request is used to request to join the aggregation The group or is used to request to establish a group session for the communication device; if it is determined that the first terminal is included in the terminal list, then the first terminal is authorized to join the aggregation group, wherein the terminal list includes information that can provide information for the communication device. An endpoint for the aggregation service.

According to the above solution, based on the request of the first terminal, it can be judged whether to add the first terminal to the aggregation group, so as to increase the number of terminals in the aggregation group on demand.

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

According to the above solution, the related information of the group session is sent to the wireless access network device, and the wireless access network device can send and receive data of the communication device through the group session, so that multiple terminals can share a group session, which is helpful save resources.

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 the second bandwidth parameter corresponding to the second QFI .

According to the foregoing solution, the radio access network device or the first terminal may determine the second bandwidth parameter corresponding to the second QFI, which may improve the accuracy of the second bandwidth parameter.

In a possible implementation method, the first message further includes a first association relationship, and the first association relationship is used to indicate the association relationship between the first QFI and the second QFI; or, the first QFI Same as this second QFI.

According to the above solution, an association relationship between the data transmission between the terminal and the radio access network device and the data transmission between the radio access network device and the user plane network element can be established, so as to realize correct transmission of the communication device on the user plane.

In a possible implementation method, the QoS rule used for the group session is sent to the first terminal; wherein, when the first request is used to request to join the aggregation group, the QoS rule includes the The identification information of the session of the first terminal and the second QoS information; or, when the first request is used to request to establish a group session for the communication device, the QoS rule includes the identification information of the group session and the information of the group session The second QoS information. Optionally, the QoS rule further includes the above-mentioned first indication information.

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

In a possible implementation method, a group session establishment request from an application function network element is received, the group session establishment request includes the identification information of the communication device and a terminal list, and the terminal list includes information that can be used by the communication device A terminal providing aggregation services; determining the aggregation group according to the location 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 above solution, the aggregation group can be determined independently by the session management network element, which can improve the efficiency of determining the aggregation group.

In a possible implementation method, a joining request from a first terminal is received, where the joining request includes identification information of the first terminal and identification information of the communication device, and the joining request is used to request joining the aggregation group; Determine the aggregation group according to the location 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 are connected to the same wireless access network equipment.

In a 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 aggregated group, and information about the group session. The third QoS information of the QoS flow and the fourth QoS information of the QoS flows of the 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 radio access network device or the terminals in the aggregation group determine the fourth QFI corresponding to the fourth QFI. Four bandwidth parameters.

According to the above solution, the fourth bandwidth parameter corresponding to the fourth QFI can be determined by the wireless access network device or the terminal in the aggregation group, which can improve the accuracy of the fourth bandwidth parameter.

In a possible implementation method, the first message further includes a second association relationship, and the second association relationship is used to indicate the association relationship between the third QFI and the fourth QFI; or, the third QFI Same as this fourth QFI.

In a possible implementation method, the QoS rule used 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 above-mentioned second indication information.

In a possible implementation method, the QoS rule used 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 above-mentioned second indication information.

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

In a possible implementation method, a session establishment notification is sent to the terminals in the aggregation group, the session establishment notification includes the identification information of the group session, and the session establishment notification is used to notify the terminals in the aggregation group Initiating the establishment of a group session; receiving a session establishment request from a terminal in the aggregation group, the session establishment request includes identification information of the group session, and the session establishment request is used to request establishment of the group session.

According to the above solution, a group session can be established based on the session establishment request of the terminal, so that the terminal can perceive the group session, and subsequently the terminal can send the data of the communication device to the wireless access network device through the group session or from the wireless access network device through the group session. The group session receives data from radio access network devices.

In a possible implementation method, the identification information of the communication device and the third indication information are sent to the policy control network element, and the third indication information is used to request to establish a group session for the communication device; The fourth indication information of the element and the QoS configuration of the default QoS flow of the group session, the fourth indication information indicates that the group session can be established.

In a possible implementation method, the QoS configuration of the default QoS flow of the group session includes a default bandwidth parameter.

In a second aspect, the embodiment of the present application provides a wireless communication method, and the method may be executed by a radio access network device or a module (such as a chip) applied to the radio access network device. The method includes: receiving 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 establishment of the group session; the aggregation group Including at least two terminals, the at least two terminals are communicatively connected to the communication device, and the at least two terminals provide aggregation services for the communication device; according to the identification information of the group session, the group session is established.

According to the solution above, the communication device can communicate with multiple terminals, so that the multiple terminals can offload the data of the communication device, so that the large traffic demand of the communication device can be realized. Moreover, the multiple terminals can serve as backups for each other. When some terminals fail or are overloaded, other terminals still provide services for the communication device, so the corresponding reliability requirements of the communication device can also be met.

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

In a possible implementation method, an offload strategy is determined according to the first bandwidth parameter and the channel state information of the first terminal, and the offload strategy includes the offload ratio of the first terminal; according to the offload strategy, the offload strategy is determined. a second bandwidth parameter; sending the second bandwidth parameter to the first terminal.

According to the above solution, the radio access network device determines the second bandwidth parameter, so that the first terminal performs offload control according to the second bandwidth parameter.

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

According to the above solution, the terminal determines the second bandwidth parameter, so that the first terminal performs offload control according to the second bandwidth parameter.

In a possible implementation method, a first data packet from the first terminal is received, and the first data packet includes the second QFI and the first data from the communication device; according to the first association relationship, generate a second data packet, where the second data packet includes the first QFI and the first data; and sending the second data packet to a user plane network element.

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

In a possible implementation method, the first message further includes the identification information of the terminal in the aggregation group, the third QoS information of the QoS flow of the group session, and the third QoS information of the QoS flow of the terminal in the aggregation group. Fourth QoS information.

In a possible implementation method, an offload strategy is determined according to the third bandwidth parameter and the channel state information of the terminals in the aggregation group, and the offload strategy includes the offload ratio of the terminals in the aggregation group; according to The distribution policy determines the fourth bandwidth parameter; and sends the fourth bandwidth parameter to the terminals in the aggregation group.

According to the above solution, the radio access network device determines the fourth bandwidth parameter, so that the terminal performs offload control according to the fourth bandwidth parameter.

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

According to the above solution, the terminal determines the fourth bandwidth parameter, so that the terminal performs offload control according to the fourth bandwidth parameter.

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

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

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

According to the solution above, the distribution rule is sent to the terminal, so that the terminal can send and receive the data packet of the communication device according to the distribution rule, and realize the distribution control of the data packet of the communication device. Moreover, since group sessions are used between radio access network equipment and user plane network elements, a data transmission tunnel is shared, and group session identifiers of the entire group are shared, so when the offloading rules need to be adjusted, only the radio access The network access device and the terminal negotiate, and the core network does not require additional signaling procedures, which saves the time for adjusting distribution rules and increases the flexibility of configuration and adjustment of distribution rules.

In a third aspect, the embodiment of the present application provides a wireless communication method, and the method may be executed by a terminal or a module (such as a chip) applied to the terminal. The method includes: receiving an offloading rule from a wireless access network device, where the offloading rule is used to instruct the terminal to send an uplink data packet from the communication device, and/or instruct the terminal to send a downlink data packet from the wireless access network device A data packet rule: according to the distribution rule, send the uplink data packet from the communication device to the radio access network device and/or send the downlink data packet from the radio access network device to the communication device.

According to the above solution, the terminal can send and receive the data packets of the communication device according to the distribution rule, so as to realize the distribution control of the data packets of the communication device, so as to meet the requirements of the communication device for large flow and reliability.

In a possible implementation method, a first request is sent to the session management network element, where the first request includes the identification information of the terminal and the identification information of the communication device; The QoS rule of the session; wherein, in the case that the first request is used to request to join the aggregation group, the QoS rule includes the identification information of the session of the terminal and the QoS information of the terminal; or, in the first request In the case of 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 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 the bandwidth parameter corresponding to the group session and the offload ratio of the terminal from the wireless access network device; according to the bandwidth parameter corresponding to the group session and the offload ratio of the terminal , to determine the bandwidth parameter corresponding to the QFI.

According to the above solution, the bandwidth parameter is determined by the terminal, so that the terminal performs offload control according to the bandwidth parameter.

In a possible implementation method, when the first request is used to request to establish a group session for the communication device, a URSP is received, and the URSP includes the identification information of the communication device; After the data packet, according to the URSP, send the first request to the session management network element.

In a possible implementation method, when the first request is used to request to establish a group session for the communication device, a session establishment notification from a session management network element is received, and the session establishment notification includes the group session The identification information of the session establishment notification is used to notify the terminal to initiate the establishment of the group session; then the first request also includes the identification information of the group session.

In a fourth aspect, the embodiment of the present application provides a communication device, and the device may be a session management network element, or may be a module (such as a chip) for the session management network element. The device has the function of realizing any realization method of the first aspect above. This function may be implemented by hardware, or may be implemented by executing corresponding software on the hardware. The hardware or software includes one or more modules corresponding to the above functions.

In a fifth aspect, the embodiment of the present application provides a communication device, and the device may be a radio access network device, or may be a module (such as a chip) for the radio access network device. The device has the function of implementing any implementation method of the second aspect above. This function may be implemented by hardware, or may be implemented by executing corresponding software on the hardware. The hardware or software includes one or more modules corresponding to the above functions.

In a sixth aspect, the embodiment of the present application provides a communication device, and the device may be a terminal, or a module (such as a chip) for the terminal. The device has the function of realizing any realization method of the third aspect above. This function may be implemented by hardware, or may be implemented by executing corresponding software on the hardware. The hardware or software includes one or more modules corresponding to the above functions.

In the seventh aspect, the embodiment of the present application provides a communication device, including a processor and a memory; the memory is used to store computer instructions, and when the device is running, the processor executes the computer instructions stored in the memory so that the device executes Any implementation method in the first aspect to the third aspect above.

In an eighth aspect, the embodiment of the present application provides a communication device, including a unit or means (means) for performing each step of any implementation method in the first aspect to the third aspect.

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

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

In the eleventh aspect, the embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium stores instructions, and when it is run on a communication device, the above-mentioned first to third aspects Any implementation method of is executed.

In the twelfth aspect, the embodiment of the present application also provides a computer program product, the computer program product includes a computer program or instruction, when the computer program or instruction is run by a communication device, any of the above first to third aspects The implementation method is executed.

In a thirteenth aspect, the embodiment of the present application further provides a chip system, including: a processor, configured to execute any implementation method in the first aspect to the third aspect above.

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

Description of drawings

Figure 1(a) is a schematic diagram of a 5G network architecture based on a service architecture;

Figure 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 provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of a method for realizing multi-terminal aggregation provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of a wireless communication method provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of a wireless communication method provided by an embodiment of the present application;

FIG. 6 is a schematic diagram of a wireless communication method provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of a wireless communication method provided by an embodiment of the present application;

FIG. 8 is a schematic diagram of a communication device provided by an embodiment of the present application;

FIG. 9 is a schematic diagram of a communication device provided by an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solution and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings. The specific operation methods in the method embodiments can also be applied to the device embodiments or system embodiments.

Figure 1(a) is a schematic diagram of the fifth generation (5th generation, 5G) network architecture based on the service architecture. The 5G network architecture shown in Figure 1(a) can include three parts, namely terminals, data network (data network, DN) and operator network. The functions of some of the network elements are briefly introduced and described below.

Wherein, the operator network may include one or more of the following network elements: authentication server function (Authentication Server Function, AUSF) network element, network exposure function (network exposure function, NEF) network element, policy control function (policy control function, PCF) network element, unified data management (unified data management, UDM) network element, unified database (Unified Data Repository, UDR), network storage function (Network Repository Function, NRF) network element, application function (application function, AF) ) network elements, access and mobility management function (access and mobility management function, AMF) network elements, session management function (session management function, SMF) network elements, radio access network (radio access network, RAN) equipment and users Plane function (user plane function, UPF) network element, network slice selection function (Network Slice Selection Function, NSSF) network element (not shown in the figure), etc. In the above operator network, network elements or devices other than radio access network devices may be referred to as core network elements or core network devices.

The wireless access network equipment can be a base station (base station), an evolved base station (evolved NodeB, eNodeB), a transmission reception point (transmission reception point, TRP), and 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 (Wireless Fidelity, WiFi) system, etc.; it can also be a module or unit that completes some functions of the base station, for example, It can be a centralized unit (central unit, CU) or a distributed unit (distributed unit, DU). The radio access network equipment may be a macro base station, a micro base station or an indoor station, or a relay node or a donor node. The embodiment of the present application does not limit the specific technology and specific equipment form adopted by the radio access network equipment. In the embodiments of the present application, a base station is used as an example of a radio access network device for description.

A terminal may also be called terminal equipment, user equipment (user equipment, UE), mobile station, mobile terminal, and so on. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things ( internet of things, IOT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearables, smart transportation, smart city, etc. Terminals can be mobile phones, tablet computers, computers with wireless transceiver functions, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc. The embodiment of the present application does not limit the specific technology and specific equipment form adopted by the terminal.

Base stations and terminals can be fixed or mobile. Base stations and terminals can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and artificial satellites in the air. The embodiments of the present application do not limit the application scenarios of the base station and the terminal.

The AMF network element performs functions such as mobility management and access authentication/authorization. In addition, it is also responsible for transferring user policies between the terminal and the PCF.

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

The UPF network element, as the interface UPF with the data network, completes functions such as user plane data forwarding, session/flow-based charging statistics, and bandwidth limitation.

The UDM network element performs functions such as managing subscription data and user access authorization.

UDR implements the access function of contract data, policy data, application data and other types of data.

NEF network elements are used to support the opening of capabilities and events.

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

The PCF network element is responsible for policy control functions such as charging for sessions and service flow levels, QoS bandwidth guarantee, mobility management, and terminal policy decision-making.

The NRF network element can be used to provide a network element discovery function, and provide 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, network element status subscription and push, etc.

The AUSF network element is responsible for authenticating users to determine whether users or devices are allowed to access the network.

The NSSF network element is used to select a network slice and count users in the network slice.

DN is a network outside the operator's network. The operator's network can access multiple DNs, and various services can be deployed on the DN, which can provide data and/or voice services for terminals. For example, DN is a private network of a smart factory. The sensors installed in the workshop of the smart factory can be terminals, and the control server of the sensors is deployed in the DN, and the control server can provide services for the sensors. The sensor can communicate with the control server, obtain instructions from the control server, and transmit the collected sensor data to the control server according to the instructions. For another example, DN is a company's internal office network. The mobile phone or computer of the company's employees can be a terminal, and the employee's mobile phone or computer can access information and data resources on the company's internal office network.

In Figure 1(a), Nausf, Nnef, Npcf, Nudm, Naf, Namf, and Nsmf are the service interfaces provided by the above-mentioned AUSF, NEF, PCF, UDM, AF, AMF, and SMF, respectively, and are used to call corresponding service operations. N1, N2, N3, N4, and N6 are interface serial numbers. The meanings of these interface serial numbers may refer to the meanings defined in the third generation partnership project (3rd generation partnership project, 3GPP) standard agreement, and no limitation is made here.

Figure 1(b) is a schematic diagram of a 5G network architecture based on a point-to-point interface. The introduction of the functions of the network elements can refer to the introduction of the functions of the corresponding network elements in Figure 1(a), and will not be repeated here. The main difference between Figure 1(b) and Figure 1(a) is that the interface between each control plane network element in Figure 1(a) is a service interface, and each control plane network element in Figure 1(b) The interface between them is a point-to-point interface.

In the architecture shown in Figure 1(b), the interface names and functions between each network element are as follows:

1), N1: the interface between the AMF and the terminal, which can be used to transmit QoS control rules and the like to the terminal.

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

3), N3: the interface between the RAN and the UPF, mainly used to transfer the uplink and downlink user plane data between the RAN and the UPF.

4), N4: The interface between SMF and UPF, which can be used to transfer information between the control plane and the user plane, including controlling the distribution of forwarding rules, QoS control rules, traffic statistics rules, etc. Information reporting.

5), N5: the interface between the AF and the PCF, which can be used for sending application service requests and reporting network events.

6), N6: the interface between UPF and DN, used to transfer the uplink and downlink user data flow between UPF and DN.

7), N7: the interface between PCF and SMF, which can be used to deliver protocol data unit (protocol data unit, PDU) session granularity and service data flow granularity control policy.

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

9), N9: a user plane interface between UPF and UPF, used to transmit uplink and downlink user data flows between UPFs.

10), N10: the interface between SMF and UDM, which can be used for SMF to obtain session management-related subscription data from UDM, and for SMF to register terminal current session-related information with UDM.

11), N11: the interface between SMF and AMF, which can be used to transfer PDU session tunnel information between RAN and UPF, transfer control messages sent to terminals, transfer radio resource control information sent to RAN, etc.

12), N12: the interface between AMF and AUSF, which can be used for AMF to initiate an authentication process to AUSF, which can carry SUCI as a subscription identifier;

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

14), N15: the interface between the PCF and the AMF, which can be used to issue terminal policies and access control-related policies.

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

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

It can be understood that the above-mentioned network element or function may be a network element in a hardware device, or a software function running on dedicated hardware, or a virtualization function instantiated on a platform (for example, a cloud platform). Optionally, the foregoing network element or function may be implemented by one device, or jointly implemented by multiple devices, or may be a functional module in one device, which is not specifically limited in this embodiment of the present application.

The session management network element, user plane network element, and policy control network element in this application can be the SMF, UPF, and PCF in Figure 1(a) or Figure 1(b), respectively, or they can be future communications such as the sixth generation ( In the 6th generation, 6G) network, network elements having the functions of the above-mentioned SMF, UPF, and PCF are not limited in this application. In the embodiment of the present application, SMF, UPF, and PCF are respectively used as an example of a session management network element, a user plane network element, and a policy control network element for description.

In order to solve the problem of insufficient single terminal performance and equipment reliability, the embodiment of this application proposes a multi-terminal capability aggregation solution, that is, multiple terminals jointly send and receive data for a communication device, and the capabilities of multiple terminals are aggregated together to form a large bandwidth , at the same time multiple terminals can back up each other to solve the reliability problem.

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

FIG. 2 is a schematic diagram of a wireless communication method provided by an embodiment of the present application. The method includes the following steps:

In step 201, the SMF generates an identifier of a group session corresponding to the aggregated group.

The aggregation group includes at least two terminals, the at least two terminals are communicatively connected to the communication device, and the at least two terminals provide the aggregation service for the communication device.

The aggregation service here means that the terminals in the aggregation group provide services for the communication device at the same time. The specific performance is: in the uplink direction, the communication device sends the complete data to be sent to each terminal at the same time, and each terminal according to the distribution rules, each sending a portion of the complete data to the network. In the downlink direction, each terminal receives part of the complete data that needs to be sent to the communication device from the network, and then sends the received part of the data to the communication device, and the communication device obtains the complete data based on the data received from each terminal. data; or, each terminal receives the complete data that needs to be sent to the communication device from the network, and then sends the received complete data to the communication device, and the communication device deduplicates the complete data received from each terminal to obtain the corresponding data .

The group session here refers to a session shared by various terminals in the aggregated group, and the session is used to send data of the communication device to the network, or receive data from the network that needs to be sent to the communication device.

In step 202, the SMF establishes a group session according to the identifier of the group session.

FIG. 3 is a schematic diagram of a method for realizing multi-terminal aggregation provided by an embodiment of the present application. In this example, the communication device is connected to two terminals through wires or wirelessly at the same time, and each terminal has its own packet data convergence protocol (packet data convergence protocol, PDCP) entity. Connect to the base station through their respective radio link control (radio link control, RLC), medium access control (medium access control, MAC), and physical (physical, PHY) entities. The base station has a unified PDCP entity for two terminals The data sent by the PDCP entities in the group are combined and sent to the UPF through the aggregated group-oriented group session. Among them, the communication device copies the data packet to be sent and sends it to two terminals at the same time. The PDCP entities of the two terminals use the serial number of the application data packet to synchronize the serial number of the data packet in the PDCP layer. The base station can set And configure the distribution rule, select the sequence number of the data packet to be sent in the respective PDCP entity. That is, both terminals receive all data packets, but only send data packets with specific serial numbers according to the distribution rules. The data packets sent by the two terminals are aggregated by the base station, and can be reordered according to serial numbers to obtain all data packets. The purpose of data packet offload transmission.

As an implementation method, the generation of the above aggregation group may be based on the terminal's request by the SMF to determine whether to add the terminal to the aggregation group, or the SMF may actively generate an aggregation group. These two methods are described below.

Method 1: The SMF judges whether to add a terminal to the aggregation group based on the request of the terminal.

For example, before the above step 201, the SMF receives a first request from the first terminal, the first request includes the identification information of the first terminal and the identification information of the communication device, the first request is a join request, and is used to request Join the aggregation group, or the first request is a session establishment request, which is used to request to establish a group session for the communication device. After receiving the first request, the SMF judges whether the first terminal is included in the terminal list, and if so, authorizes the first terminal to join the aggregation group, wherein the terminal list includes terminals capable of providing aggregation services for the communication device , the terminal list can be provided to the PCF by the application function network elements related to the communication equipment, such as industrial controllers, etc., and then provided to the SMF by the PCF, or the terminal list can also be configured on the SMF by the operator, or by Operators are configured on the PCF, and then provided to the SMF by the PCF.

Exemplarily, communication device A and a terminal list corresponding to communication device A are stored on the SMF, and the terminal list includes terminal 1 , terminal 2 , terminal 3 and terminal 4 . If the terminal 1 sends the first request to the SMF, and the SMF determines that the terminal list includes the terminal 1, then authorizes the terminal 1 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 terminal wants to join the aggregation group, the terminal first 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 certain terminal does not send the first request, the terminal will not be added to the aggregation group. For example, if Terminal 1, Terminal 2, Terminal 5, and Terminal 6 all send the above-mentioned first request, then the aggregation group generated by the SMF includes Terminal 1 and Terminal 2.

Method 2: SMF actively generates aggregation groups.

In this method, the aggregation group is not generated by each terminal sending a request, but an aggregation group is actively generated by the SMF.

As an implementation method, an application function network element related to the communication device, such as an industrial controller, sends a group session establishment request to the SMF, and the group session establishment request includes the identification information of the communication device and a terminal list, and the terminal list contains terminals capable of providing aggregation services for the communication device, and then the SMF determines an aggregation group according to the location information of the terminals in the terminal list, wherein the terminals included in the aggregation group all come from the terminal list. Exemplarily, the application function network element provides the identification information of communication device A and a terminal list to the SMF, and the terminal list includes terminal 1, terminal 2, terminal 3 and terminal 4, for example, terminal 1, terminal 2 and terminal 3 connect access the same base station, and terminal 4 accesses another base station, the SMF determines that the aggregation group includes terminal 1, terminal 2, and terminal 3, but excluding terminal 4.

As another implementation method, the SMF receives a join request from any terminal such as the first terminal, the join request includes the identification information of the first terminal and the identification information of the communication device, and the join request is used to request to join the aggregation group, Then, the SMF determines an aggregation group according to the location information of the first terminal, where the aggregation group includes the first terminal and other terminals connected to the same base station as the first terminal. Exemplarily, Terminal 1 sends a joining request to SMF, and then SMF determines that Terminal 1 is included in the aggregation group, as well as other terminals connected to the same base station as Terminal 1, such as Terminal 2, Terminal 3, and Terminal 4, that is, determine The aggregation group of includes Terminal 1, Terminal 2, Terminal 3, and Terminal 4. In this method, a join request sent by a certain terminal is used as a trigger condition to trigger the SMF to generate an aggregation group, and no other terminal is required to send join requests later.

If the SMF determines the aggregation group through the above method 1, as an implementation method, the SMF may also send a first message to the base station, the first message includes the identification information of the group session, the identification information of the first terminal, the group The first QoS information of the QoS flow of the session and the second QoS information of the QoS flow of the session of the first terminal, and the first message is used to request to establish a group session. After receiving the first message, the base station can 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 (Quality of Service Flow Identity, QFI) and a first bandwidth parameter corresponding to the first QFI, and the first QFI is used to identify the QoS flow of the group session , the first bandwidth parameter may include, for example, a 5G QoS identifier (5G QoS Identifier, 5QI), a guaranteed flow bit rate (Guaranteed Flow Bit Rate, GFBR), and a maximum flow bit rate (Maximum Flow Bit Rate, MFBR). The second QoS information includes a second QFI, where the second QFI is used to identify the QoS flow of 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 the second bandwidth parameter corresponding to the second QFI, and the second bandwidth parameter includes, for example, GFBR. As an implementation method, the base station determines the second bandwidth parameter. For example, the base station determines the offload strategy according to the first bandwidth parameter and the channel state information of the first terminal. The offload strategy includes the offload ratio of the first terminal. The policy determines the second bandwidth parameter, 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 offload ratio of the first terminal to the first terminal, and then the terminal determines the bandwidth parameter according to the first bandwidth parameter and the offload ratio of the first terminal. Second bandwidth parameter. Wherein, the second bandwidth parameter here may include, for example, the GFBR corresponding to the first terminal. Exemplarily, the GFBR included in the first bandwidth parameter is 100 megabits per second (Mbps), the GFBR included in the second bandwidth is 50 Mbps, and the offload ratio of the first terminal is 50%.

Optionally, when the above-mentioned 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 QoS flow first QFI in the group session between the base station and the UPF is related to the terminal and the base station The second QFI of the QoS flows in the group session between them is the same. 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. Alternatively, the base station receives a data packet from the UPF, and the data packet includes 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, wherein the above-mentioned 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 terminal and the base station are used between the terminal and the base station session and the group session is used between the base station and the UPF, the above-mentioned first message further includes a first association relationship, and the first association relationship is used to indicate the association relationship between the first QFI and the second QFI. In this case, the communication device sends a data packet to the terminal, and the data packet contains the first data. After the first terminal receives the data packet, it adds a second QFI to the data packet to obtain the first data packet, and then sends it to The base station, after receiving the first data packet, the base station generates a second data packet according to the first association relationship, 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, the third data packet contains 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 relationship, and the fourth data The 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 QFI in the data packet according to the first association relationship.

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

Wherein, in the case that the above-mentioned first request is used to request to join the aggregation group, the QoS rule includes the identification information of the session of the first terminal and the second QoS information. Optionally, the QoS rule also includes the above-mentioned first Instructions. In this situation, the first terminal is not aware of the group conversation. That is, data is sent and received between the first terminal and the base station through a session of the first terminal, and data is sent and received between the base station and the UPF through a group session, and there is an association between the session of the terminal and the session of the group. It is expressed as the above-mentioned first association relationship.

Wherein, when the above-mentioned first request is used to request to establish a group session for the communication device, the QoS rule includes the identification information of the group session and the second QoS information. Optionally, the QoS rule also includes the above-mentioned first 1. Instructions. In this situation, the first terminal perceives the group conversation. That is, data is sent and received between the first terminal and the base station through the group session, and data is also sent and received between the base station and the UPF through the group session. Wherein, 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, when the above-mentioned first request is used to request the establishment of a group session for the communication device, the trigger condition for triggering the first terminal to send the first request may be, for example: the first terminal receives the user's routing selection Policy (UE Routing Selection Policy, URSP), the URSP includes the identification information of the communication device, then the first terminal sends the above-mentioned first request to the SMF according to the URSP after detecting the data packet from the communication device. That is, the URSP triggers the first terminal to send a first request to the SMF after detecting the data packet from the communication device, so as to request to establish a group session.

If the SMF determines the aggregation group through the above method two, as an implementation method, the SMF can also send a first message to the base station, the first message includes the identification information of the group session and 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 terminals in the aggregation group, and the first message is used to request the 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 piece of fourth QoS information, and the fourth QoS information of different terminals may be the same or different, which is not limited.

Optionally, the third QoS information includes a third QFI and a third bandwidth parameter corresponding to the third QFI, 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 , MFBR. The fourth QoS information includes a fourth QFI, and the fourth QFI is used to identify the QoS flow of the session of the terminal in the aggregation group.

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

Optionally, when the above-mentioned 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 QoS flow third QFI in the group session between the base station and the UPF is related to the terminal and the base station The fourth QFI of the QoS flows in the group session between is the same. 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 the base station sends the data packet to the UPF after receiving the data packet from the terminal. Or, the base station receives a data packet from the UPF, and the data packet includes 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, wherein the above-mentioned 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 terminal and the base station are used between the terminal and the base station session and the group session is used between the base station and the UPF, the above-mentioned first message further includes a second association relationship, and the second association relationship is used to indicate the 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, the data packet contains the third data, and after receiving the data packet, the terminal adds a fourth QFI to the data packet to obtain the fifth data packet, Then send it to the base station. After receiving the first data packet, the base station generates a sixth data packet according to the first association relationship. The sixth data packet contains 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, the seventh data packet contains 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 relationship, and the eighth data The 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 above, 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 sessions of terminals in the aggregation group and fourth QoS information, and optionally, the QoS rule also includes the above-mentioned second indication information. In this situation, the terminals in the aggregated group do not perceive the group conversation. That is, the terminal in the aggregation group and the base station perform data transmission and reception through the session of the terminal, and the data transmission and reception between the base station and the UPF use the group session, and the session of the terminal has an association relationship with the session of the group. It is specifically expressed as the above-mentioned second association relationship.

In another implementation method, the QoS rule includes the identification information of the group session and the fourth QoS information, and optionally, the QoS rule also includes the above-mentioned second indication information. In this case, the terminals in the aggregation group perceive the group conversation. That is, the terminals in the aggregation group and the base station perform data transmission and reception through the group session, and the base station and UPF also perform data transmission and reception through the group session. Wherein, the fourth QFI corresponding to the group session between the terminal and the base station may be the same as or different from the third QFI corresponding to the group session between the base station and the UPF.

As an implementation method, the following method can be used to make the terminals in the aggregation group aware of the group session: the SMF sends a session establishment notification to the terminals in the aggregation group, and the session establishment notification includes the identification information of the group session. The session establishment notification is used to notify the terminals in the aggregation group to initiate group session establishment. A terminal in the aggregated group sends a session establishment request to the SMF, the session establishment request includes identification information of the group session, and the session establishment request is used to request establishment of the group session. That is, if a terminal in the aggregation group initiates a session establishment request, then the terminal can perceive the group session.

As an implementation method, the SMF can determine the above-mentioned first bandwidth parameter or the third bandwidth parameter through the following method: the SMF sends the identification information of the communication device and the third indication information to the PCF, and the third indication information is used to request the establishment of a communication device for the communication device. For the group session, the PCF sends fourth indication information and the QoS configuration of the default QoS flow of the group session to the SMF, where 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 a default bandwidth parameter. 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 can also send a distribution rule to the terminals in the aggregation group, where the distribution rule is used to indicate the rules for the terminals in the aggregation group to send uplink data packets from the communication device, and/or indicate the aggregation group The rules for sending downlink data packets from the base station by the terminal in it. The terminal may send the uplink data packet from the communication device to the base station and/or send the downlink data packet from the base station to the communication device according to the distribution rule. Exemplarily, the distribution rule corresponding to terminal 1 instructs terminal 1 to start sending data packets with the initial sequence number, and to send a data packet every 2 subsequent serial numbers. Taking the initial sequence number as 0 as an example, the terminal 1 The sequence numbers of the data packets sent are 0, 3, 6, 9, 12, .... In this example, the diversion ratio corresponding to terminal 1 is 33.3%.

The solution in the above embodiment in FIG. 2 will be described below with reference to specific examples.

FIG. 4 is a schematic diagram of a wireless communication method provided by an embodiment of the present application. In this embodiment, the SMF determines the aggregation group through the above method one, that is, the SMF judges whether to add the terminal to the group based on the terminal's request. And in this embodiment, the terminal does not perceive the group conversation.

The method includes the following steps:

In step 401, the AF sends an aggregation request to the PCF.

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

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

The aggregation request includes the identification information of the communication device, the QoS requirement and the terminal list corresponding to the communication device.

Wherein, 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 (identification, ID). The QoS requirements include, for example, information such as bandwidth requirements. The terminal list includes one or more terminals, and the one or more terminals refer to terminals that can provide aggregation services for the communication device.

It should be noted that this step 401 is an optional step. When step 401 is not performed, 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 through configuration.

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

The join request is used to request to join the aggregation group that provides the aggregation service for the communication device, and the aggregation group may include one or more terminals. The aggregation group is also called a terminal group.

Terminal 1 may send an N1 message to the SMF, and the N1 message includes the above joining request.

The terminal 1 is connected to the communication device in a wired or wireless manner, so the communication can be performed in a wired or wireless manner.

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

The indication information is used to request to establish a group session for the communication device.

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

Wherein, the indication information is used to indicate that the group session can be established, or is used to indicate that the group session is available. Wherein, when the identification information of the communication device is configured on the PCF, 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 the terminal list pre-configured by the operator, and the terminal list includes terminals capable of providing aggregation services for the communication device.

The QoS flow configuration is the QoS flow configuration of the default QoS flow corresponding to the group session. The QoS flow configuration includes a 5G QoS identifier (5G QoS Identifier, 5QI) and a bandwidth parameter. The bandwidth parameter includes, for example, a guaranteed flow bit rate (Guaranteed Flow Bit Rate, GFBR), maximum flow bit rate (Maximum Flow Bit Rate, MFBR). Among them, 5QI is used to represent the characteristics of a QoS flow, and one 5QI corresponds to a group of characteristic parameters. Wherein, when the PCF is generating the QoS flow configuration, reference may be made to the QoS requirements described in step 401 above.

In step 405, the SMF allows Terminal 1 to join the group session.

Specifically, when the SMF receives the terminal list, indicating that the terminal list includes terminal 1, the SMF authorizes 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 has not been established, the SMF also needs to establish the group session.

In step 406, the SMF allocates an identifier for the group session.

Optionally, the identifier of the group conversation 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.

In step 408, the UPF sends the shared uplink N3 port information allocated by the UPF to the SMF.

Step 409, the SMF sends a joining response to the base station, where the joining response is used to request to establish a group session for the communication device.

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

The joining response includes the identifier of the group session, the aggregation group, the QFI 1 allocated for the group session, the QoS profile (QoS profile) corresponding to QFI 1, the QFI 2 allocated for the session of Terminal 1, and the QFI 2 corresponding to QoS configuration file, indication information and association relationship.

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

Wherein, the aggregation group includes a terminal configured to provide the aggregation service to the communication device. The aggregation group currently only includes Terminal 1.

Optionally, the QoS configuration file corresponding to QFI 1 includes 5QI, GFBR and MFBR, wherein, 5QI, GFBR and MFBR here can be respectively 5QI, GFBR and MFBR in the QoS flow configuration of the default QoS flow in the above step 404 same.

Among them, the QoS configuration file corresponding to QFI 2 includes 5QI and MFBR. There is a mapping relationship between the 5QI contained in the QoS configuration file corresponding to QFI 2 and the 5QI contained in the QoS configuration file corresponding to QFI 1, that is, the QoS configuration corresponding to QFI 2 can be determined according to the 5QI contained in the QoS configuration file corresponding to QFI 1 5QI included in the file. The MFBR contained in the QoS configuration file corresponding to QFI 2 can be determined by the SMF according to the subscription information of Terminal 1 and the MFBR contained in the QoS configuration file corresponding to QFI 1. The subscription information of Terminal 1, for example, can be obtained from the SMF through the PCF. The one obtained by UDM is not limited in this application. For example, the MFBR included in the QoS configuration file corresponding to QFI 2 may be the smaller value of the MFBR included in the subscription information of the terminal 1 and the MFBR included in the QoS configuration file corresponding to QFI 1. The indication information in the above adding response is used to indicate that the base station determines the GFBR corresponding to QFI 2.

The above association relationship refers to the association relationship between the group session and the session of Terminal 1, or refers to the association relationship between QFI 2 and QFI 1.

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

Step 410, the SMF configures the QoS rule for the group session to the terminal 1 through the N1 message, and the QoS rule is applied to the QoS flow identified by the QFI 2 in the session of the terminal 1.

The QoS rule includes the identification of the session of the terminal 1, the identification information of the communication device, QFI 2, the QoS configuration file corresponding to the QFI2 and indication information, and the indication information is used to indicate that the base station or the terminal determines the GFBR corresponding to the QFI 2.

Step 411, the base station configures access network resources (AN resource) for terminal 1 and configures distribution rules for terminal 1.

Among them, the shunt rule is used to instruct terminal 1 to send data packets, for example, instruct terminal 1 to start sending uplink data packets with the starting sequence number, and then send an uplink data packet every 2 sequence numbers, starting with the starting sequence number If the number is 0 as an example, the sequence numbers of the uplink data packets sent by the terminal 1 are 0, 3, 6, 9, 12, . . .

As an implementation method, the GFBR corresponding to QFI 2 can be generated by the base station and sent to terminal 1. For example, the base station determines the offload strategy of the group session according to the QoS configuration file corresponding to QFI 1, the channel state information of the terminals in the aggregation group, and the aggregate maximum bit rate (Aggregate Maximum Bit Rate, AMBR) of the terminals in the aggregation group , the distribution policy is used to indicate the proportion or size of the data flow of the group session on each terminal in the aggregation group. Wherein, the base station can determine the GFBR corresponding to the above-mentioned QFI 2 according to the distribution strategy, and then send it to the terminal 1.

As another implementation method, terminal 1 may also determine the GFBR corresponding to QFI 2 according to offload scheduling information sent by the base station. For example, the offload scheduling information sent by the base station to Terminal 1 includes indication information and the GFBR corresponding to the group session. For example, the indication information indicates that Terminal 1 needs to send half of the traffic on the group session, and the GFBR corresponding to the group session is 100 megabits per second (Mbps), then the terminal can calculate that the GFBR corresponding to QFI 2 is 50Mbps.

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

Wherein, the information of the access network tunnel includes an identifier of the information of the access network tunnel.

Step 413, the SMF sends the information of the access network tunnel to the UPF, establishes the N3 shared tunnel, and configures the downlink forwarding rule for the UPF at the same time, and the downlink forwarding rule instructs the UPF to pass the downlink data packet that needs to be sent to the communication device through the corresponding N3 shares the tunnel for sending.

After completing the above operations, subsequently, in the uplink direction, after terminal 1 receives the uplink data packet from the communication device, it can add QFI 2 to the header of the uplink data packet, and send it to the base station through the session of terminal 1, the base station After receiving the uplink data packet carrying QFI 2, according to the relationship between QFI 2 and QFI 1, add QFI 1 to the header of the uplink data packet, and then send the uplink data packet to UPF. Among them, the implementation method of "adding QFI 1 to the packet header of the uplink data packet", for example, can be to use QFI 1 to replace QFI 2, that is, to delete QFI 2 and add QFI 1, or not to delete the already carried QFI 1, but directly newly added QFI 2. In the downlink direction, the base station receives the downlink data packet from the UPF through the group session. The header of the downlink data packet contains QFI 1, and the base station adds Go to QFI 2, and then send the downlink data packet to Terminal 1 through the session of Terminal 1. That is, the base station and terminal 1 send and receive data packets through the session of terminal 1, and the base station and UPF send and receive data packets through a group session, and terminal 1 does not perceive the group session. Among them, the implementation method of "adding QFI 2 to the header of the downlink data packet", for example, can be to use QFI 2 to replace QFI 1, that is, to delete QFI 1 and add QFI 2, or not to delete the already carried QFI 2, but add QFI 1 directly.

After terminal 1 joins the aggregation group, other terminals may also join the aggregation group one after another. The following takes terminal 2 joining the aggregation group as an example for illustration.

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

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

Terminal 2 may send an N1 message to the SMF, and the N1 message includes the above joining request.

The terminal 2 is connected to the communication device in a wired or wireless manner, so the communication can be performed in a wired or wireless manner.

In step 415, the SMF allows terminal 2 to join the group session.

Specifically, SMF determines that terminal 2 is included in the terminal list according to the terminal list received from AF or according to the terminal list configured by the operator, then SMF authorizes terminal 2 to join the aggregation group, and allows terminal 2 to join the aggregation group corresponding group conversation. 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, nor does it allow the terminal 2 to join the group session corresponding to the aggregation group.

Step 416, the SMF sends a join response to the base station, where the join response is used to request to update the aggregation group.

The SMF may send an N2 message to the base station, and the N2 message includes a joining response.

The joining response includes the identifier of the group session, the QFI 3 allocated for the session of the terminal 2, the QoS configuration file corresponding to the QFI 3, the indication information, and the association relationship.

Among them, the QoS configuration file corresponding to QFI 3 includes 5QI and MFBR. There is a mapping relationship between the 5QI contained in the QoS configuration file corresponding to QFI 3 and the 5QI contained in the QoS configuration file corresponding to QFI 1, that is, the QoS configuration corresponding to QFI 3 can be determined according to the 5QI contained in the QoS configuration file corresponding to QFI 1 5QI included in the file. The MFBR contained in the QoS configuration file corresponding to QFI 3 can be determined by the SMF according to the subscription information of Terminal 2 and the MFBR contained in the QoS configuration file corresponding to QFI 1. The subscription information of Terminal 2, for example, can be obtained from the SMF through the PCF. The one obtained by UDM is not limited in this application. For example, the MFBR included in the QoS configuration file corresponding to QFI 3 may be the smaller value of the MFBR included in the subscription information of the terminal 2 and the MFBR included in the QoS configuration file corresponding to QFI 1. The indication information in the above adding response is used to indicate that the base station or terminal determines the GFBR corresponding to QFI 3.

The above association relationship refers to the association relationship between the group session and the session of the terminal 2, or refers to the association relationship between QFI 3 and QFI 1.

Step 417, the SMF configures the QoS rule for the group session to the terminal 2 through the N1 message, and the QoS rule is applied to the QoS flow identified by the QFI 3 in the session of the terminal 2.

The QoS rule includes the identification of the session of the terminal 2, the identification information of the communication device, the QFI 3, the QoS configuration file corresponding to the QFI 3, and the indication information, and the indication information is used to indicate that the base station or the terminal determines the GFBR corresponding to the QFI 3.

Step 418 , the base station configures access network resources for Terminal 1 and Terminal 2 and configures distribution rules for Terminal 1 and Terminal 2 .

Since terminal 2 is added to the aggregation group, the access network resources configured for terminal 1 in the preceding steps need to be updated, and the distribution rules configured for terminal 1 in the preceding steps also need to be updated. In addition, the base station also needs to configure access network resources and distribution rules for the terminal 2 .

Wherein, the offload rule configured for terminal 1 is used to instruct terminal 1 to send uplink data packets, and the offload rule configured for terminal 2 is used to instruct terminal 2 to send uplink data packets. For example, instruct terminal 1 to start sending the uplink data packet with the starting sequence number, and then send an uplink data packet every other sequence number, and instruct terminal 2 to start sending a data packet after the starting sequence number, and then send every subsequent uplink data packet Send 1 uplink data packet every other sequence number. Taking the starting sequence number as 0 as an example, the sequence numbers of the uplink data packets sent by terminal 1 are 0, 2, 4, 6, 8, ..., and the sequence numbers of uplink data packets sent by terminal 2 are 1, 3, 5, 7, 9, ....

Wherein, the method for determining the GFBR corresponding to QFI 2 and the GFBR corresponding to QFI 3 can refer to the description of the aforementioned step 411. It should be noted that, the difference from the aforementioned step 411 is that the aggregation group currently includes Terminal 1 and Terminal 2, so when determining the GFBR corresponding to QFI 2 and the GFBR corresponding to QFI 3, it is necessary to combine the AMBR of Terminal 2, AMBR of terminal 3, channel state information of terminal 2, and channel state information of terminal 3.

In the above solution, the terminal joins the aggregation group that provides the aggregation service for the communication device by sending a joining request. The core network only maintains a shared group session. The base station can flexibly formulate a traffic distribution strategy according to the QoS configuration file corresponding to the group session provided by the core network. At the same time, the base station can associate the QFI in the terminal session according to the session association relationship provided by the core network. With the QFI in the group session, the terminal does not perceive the group session, and still receives and sends data from the terminal session. Through this solution, a communication device can directly communicate with multiple terminals in an aggregation group. When some terminals in the aggregation group cannot continue to provide services for the communication device due to failure or overload, they can still be connected by Other terminals in the aggregation group continue to provide services for the communication device, so stable services can be provided for the communication device, which is beneficial to saving resources.

FIG. 5 is a schematic diagram of a wireless communication method provided by an embodiment of the present application. In this embodiment, the SMF determines the aggregation group through the second method above, that is, the SMF actively determines the aggregation group. And in this embodiment, the terminal does not perceive the group conversation. The method includes 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 may be 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, and the group session establishment request includes identification information of the communication device and a terminal list.

The group session establishment request is used to request to establish 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 aggregation services for the communication device.

Step 502b is the same as step 402, and reference may be made to the foregoing description.

Step 503 to step 504, same as step 403 to step 404, can refer to the foregoing description.

In step 505, the SMF determines the aggregation group and assigns a group session identifier.

When the above step 502a is executed, the SMF can determine the 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 SMF queries AMF for the location information of Terminal 1, Terminal 2, and Terminal 3. For example, if 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 SMF can determine the aggregation group The group contains Terminal 1 and Terminal 2, but does not contain Terminal 3. Of course, this is only used as an example to illustrate the specific implementation manner of determining the aggregation group. In practice, there are many implementation methods for determining the aggregation group according to the location information of the terminal, which are not limited.

When the above step 502b is executed, the SMF can query the AMF for other terminals connected to the same base station as the terminal 1 according to the identification information of the terminal 1. For example, there is a terminal 2 under the base station accessed by the terminal 1. The aggregation group includes Terminal 1 and Terminal 2.

For ease of description, the aggregation group is constituted by terminal 1 and terminal 2 as an example for description below.

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

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

Step 507 to step 508, same as step 407 to step 408, can refer to the foregoing description.

Step 509, the SMF sends a group configuration request to the base station, where the group configuration request is used to request to establish a group session for the communication device.

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

The group configuration request includes the identifier of the group session, the aggregation group, the QFI 1 assigned to the group session, the QoS profile (QoS profile) corresponding to QFI 1, the QFI 2 assigned to the session of Terminal 1, and the QFI 2 Corresponding QoS configuration file, QFI 3 allocated for the session of terminal 2, QoS configuration file corresponding to QFI 3, indication information and association relationship.

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

Wherein, the aggregation group includes a terminal configured to provide the aggregation service to the communication device.

Optionally, the QoS configuration file corresponding to QFI 1 includes 5QI, GFBR and MFBR, wherein, 5QI, GFBR and MFBR here can be respectively 5QI, GFBR and MFBR in the QoS flow configuration of the default QoS flow in the above-mentioned step 504 same.

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

The QoS configuration file corresponding to QFI 3 includes 5QI and MFBR. There is a mapping relationship between the 5QI contained in the QoS configuration file corresponding to QFI 3 and the 5QI contained in the QoS configuration file corresponding to QFI 1, that is, the QoS configuration corresponding to QFI 3 can be determined according to the 5QI contained in the QoS configuration file corresponding to QFI 1 5QI included in the file. The MFBR contained in the QoS configuration file corresponding to QFI 3 can be determined by the SMF according to the subscription information of Terminal 2 and the MFBR contained in the QoS configuration file corresponding to QFI 1. The subscription information of Terminal 2, for example, can be obtained from the SMF through the PCF. The one obtained by UDM is not limited in this application. For example, the MFBR included in the QoS configuration file corresponding to QFI 3 may be the smaller value of the MFBR included in the subscription information of the terminal 2 and the MFBR included in the QoS configuration file corresponding to QFI 1.

The indication information in the above-mentioned group configuration request is used to indicate that the base station or the terminal determines the GFBRs corresponding to QFI 2 and QFI 3 respectively.

The above association relationship refers to the association relationship between the group session and the session of Terminal 1 and the session of Terminal 2, or refers to the association relationship between QFI 2 and QFI 1, and the relationship between QFI 3 and QFI 1 connection relation. Alternatively, it can be understood that the foregoing association relationship refers to an association relationship between a group session and a session of terminals in the aggregation group.

The shared uplink N3 port information corresponding to the group session on the UPF is allocated by the UPF in step 508 above.

Step 510a, the SMF configures the QoS rule for the group session to the terminal 1 through the N1 message, and the QoS rule is applied to the QoS flow identified by the QFI 2 in the session of the terminal 1.

The QoS rule includes the identification of the session of the terminal 1, the identification information of the communication device, QFI 2, the QoS configuration file corresponding to the QFI 2, and indication information, and the indication information is used to indicate that the base station or the terminal determines the GFBR corresponding to the QFI 2.

Step 510b, the SMF configures the QoS rule for the group session to the terminal 2 through the N1 message, and the QoS rule is applied to the QoS flow identified by the QFI 3 in the session of the terminal 2.

Step 511 , the base station configures access network resources for Terminal 1 and Terminal 2 and configures distribution rules for Terminal 1 and Terminal 2 .

For the specific implementation process of this step, reference may be made to the relevant descriptions of step 411 and step 418, and details are not repeated here.

Step 512 to step 513, same as step 412 to step 413, can refer to the foregoing description.

The embodiment in Figure 5 can achieve the same technical effect as the embodiment in Figure 4, the main difference between the embodiment in Figure 5 and the embodiment in Figure 4 is: in the embodiment in Figure 5, the SMF can actively determine the aggregation group group, while in the embodiment of FIG. 4 above, each terminal requests to join the aggregation group.

FIG. 6 is a schematic diagram of a wireless communication method provided by an embodiment of the present application. In this embodiment, the SMF determines the aggregation group through the above method one, that is, the SMF judges whether to add the terminal to the group based on the terminal's request. And in this embodiment, the terminal perceives the group conversation.

The method includes the following steps:

Step 601 is the same as step 401 above.

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

The session establishment request is used to request establishment of a group session.

Wherein, before step 602, the terminal 1 may receive the URSP from the PCF, the URSP includes the identification information of the communication device, and is used for the terminal 1 to identify the data packet from the communication device. After terminal 1 detects the data packet from the communication device, according to the URSP, it triggers sending the above session establishment request to the SMF.

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

Step 609, the SMF sends a group configuration request to the base station, where the group configuration request is used to request to establish a group session for the communication device.

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

The above-mentioned relationship refers to the relationship between QFI 2 and QFI 1. It should be noted that when QFI 1 is the same as QFI 2, the group configuration request does not need to include the above association relationship.

Optionally, the QoS configuration file corresponding to QFI 1 includes 5QI, GFBR and MFBR, wherein 5QI, GFBR and MFBR here can be the same as 5QI, GFBR and MFBR in the QoS flow configuration of the default QoS flow in the above steps .

Among them, the QoS configuration file corresponding to QFI 2 includes 5QI and MFBR. There is a mapping relationship between the 5QI contained in the QoS configuration file corresponding to QFI 2 and the 5QI contained in the QoS configuration file corresponding to QFI 1, that is, the QoS configuration corresponding to QFI 2 can be determined according to the 5QI contained in the QoS configuration file corresponding to QFI 1 5QI included in the file. The MFBR contained in the QoS configuration file corresponding to QFI 2 can be determined by the SMF according to the subscription information of Terminal 1 and the MFBR contained in the QoS configuration file corresponding to QFI 1. The subscription information of Terminal 1, for example, can be obtained from the SMF through the PCF. The one obtained by UDM is not limited in this application. For example, the MFBR included in the QoS configuration file corresponding to QFI 2 may be the smaller value of the MFBR included in the subscription information of the terminal 1 and the MFBR included in the QoS configuration file corresponding to QFI 1. The indication information in the above-mentioned group configuration request is used to indicate that the base station or the terminal determines the GFBR corresponding to QFI 2.

The shared uplink N3 port information corresponding to the group session on the UPF is allocated by the UPF in the above steps.

Step 610, the SMF configures the QoS rule for the group session to the terminal 1 through the N1 message, and the QoS rule is applied to the QoS flow identified by the QFI 2 of the group session.

The QoS rule includes the identification of the group session, the identification information of the communication device, QFI 2, the QoS configuration file corresponding to QFI 2 and indication information, and the indication information is used to instruct the base station or terminal to determine the GFBR corresponding to QFI 2.

Step 611 to step 613 are the same as step 411 to step 413.

In the case where the above QFI 1 is different from QFI 2, after the above operations are completed, subsequently, in the uplink direction, after terminal 1 receives the uplink data packet from the communication device, it can add QFI 2 to the header of the uplink data packet , and send it to the base station through the session of terminal 1. After receiving the uplink data packet carrying QFI 2, the base station adds QFI 1 to the header of the uplink data packet according to the relationship between QFI 2 and QFI 1, and then The uplink data packet is sent to the UPF through the group session. Among them, the implementation method of "adding QFI 1 to the packet header of the uplink data packet", for example, can be to use QFI 1 to replace QFI 2, that is, to delete QFI 2 and add QFI 1, or not to delete the already carried QFI 1, but directly newly added QFI 2. In the downlink direction, the base station receives the downlink data packet from the UPF through the group session. The header of the downlink data packet contains QFI 1, and the base station adds Go to QFI 2, and then send the downlink data packet to Terminal 1 through the session of Terminal 1. That is, the base station and terminal 1 send and receive data packets through the session of terminal 1, and the base station and UPF send and receive data packets through a group session, and terminal 1 does not perceive the group session. Among them, the implementation method of "adding QFI 2 to the header of the downlink data packet", for example, can be to use QFI 2 to replace QFI 1, that is, to delete QFI 1 and add QFI 2, or not to delete the already carried QFI 2, but add QFI 1 directly.

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

Wherein, before step 614, the terminal 2 may receive the URSP from the PCF, the URSP includes identification information of the communication device, and is used for the terminal 2 to identify the data packet from the communication device. After the terminal 2 detects the data packet from the communication device, according to the URSP, it triggers sending the above session establishment request to the SMF.

Step 615 is the same as step 415.

In step 616, the SMF sends a group configuration request to the base station, where the group configuration request is used to request to update the aggregation group.

The group configuration request includes the identifier of the group session, the QFI 3 allocated for the group session, the QoS configuration file corresponding to the QFI 3, instruction information and association relationship.

The relationship refers to the relationship between QFI 3 and QFI 1. It should be noted that when QFI 3 is the same as QFI 1, the association relationship may not be included in the group configuration request.

Among them, the QoS configuration file corresponding to QFI 3 includes 5QI and MFBR. There is a mapping relationship between the 5QI contained in the QoS configuration file corresponding to QFI 3 and the 5QI contained in the QoS configuration file corresponding to QFI 1, that is, the QoS configuration corresponding to QFI 3 can be determined according to the 5QI contained in the QoS configuration file corresponding to QFI 1 5QI included in the file. The MFBR contained in the QoS configuration file corresponding to QFI 3 can be determined by the SMF according to the subscription information of Terminal 2 and the MFBR contained in the QoS configuration file corresponding to QFI 1. The subscription information of Terminal 2, for example, can be obtained from the SMF through the PCF. The one obtained by UDM is not limited in this application. For example, the MFBR included in the QoS configuration file corresponding to QFI 3 may be the smaller value of the MFBR included in the subscription information of the terminal 2 and the MFBR included in the QoS configuration file corresponding to QFI 1. The indication information in the above adding response is used to indicate that the base station determines the GFBR corresponding to QFI 3.

Step 617, the SMF configures the QoS rule for the group session to the terminal 2 through the N1 message, and the QoS rule is applied to the QoS flow identified by the QFI 3 of the group session.

The QoS rule includes the identification of the group session, the identification information of the communication device, QFI 3, the QoS configuration file corresponding to QFI 3 and indication information, and the indication information is used to indicate that the base station or terminal determines the GFBR corresponding to QFI 3.

Step 618 is the same as step 418.

The embodiment in FIG. 6 can achieve the same technical effect as the embodiment in FIG. 4 . The main difference between the embodiment in FIG. 6 and the embodiment in FIG. 4 is that each of the aggregation groups in the embodiment in FIG. The terminal perceives the group session, and the terminal and the base station send and receive data through the group session, that is, after the terminal receives the data packet from the communication device, it sends it to the base station through the group session, and the base station sends it to the UPF through the group session. Wherein, the QFI corresponding to the group session between the terminal and the base station (such as the above QFI 2, QFI 3) and the QFI corresponding to the group session between the base station and the UPF (such as the above QFI 1) may be the same or different. However, in the above-mentioned embodiment of FIG. 4 , each terminal in the aggregation group is not aware of the group session, and data is sent and received between the terminal and the base station through the session of the terminal.

FIG. 7 is a schematic diagram of a wireless communication method provided by an embodiment of the present application. In this embodiment, the SMF determines the aggregation group through the second method above, that is, the SMF actively determines the aggregation group. And in this embodiment, the terminal perceives the group conversation.

The method includes the following steps:

Step 701 is the same as step 501.

Step 702a to step 702b are the same as step 502a to step 502b.

Step 703 to step 705 are the same as step 503 to step 505.

In step 706a, the SMF sends a session establishment notification to Terminal 1, the session establishment notification includes identification information of the group session and identification information of the communication device, and the session establishment notification is used to instruct Terminal 1 to initiate group session establishment.

In step 706b, the SMF sends a session establishment notification to the terminal 2, the session establishment notification includes the identification information of the group session and the identification information of the communication device, and the session establishment notification is used to instruct the terminal 2 to initiate the establishment of the group session.

Step 707a, Terminal 1 sends a session establishment request to the SMF, the session establishment request includes identification information of the group session and identification information of Terminal 1, and the session establishment request is used to request establishment of the group session.

Step 707b, Terminal 2 sends a session establishment request to the SMF, the session establishment request includes identification information of the group session and identification information of Terminal 2, and the session establishment request is used to request establishment of the group session.

Step 708 to step 710 are the same as step 506 to step 508.

Step 711, the SMF sends a group configuration request to the base station, where the group configuration request is used to request to establish a group session for the communication device.

The group configuration request includes the identifier of the group session, the aggregation group, the QFI 1 allocated for the group session, the QoS profile (QoS profile) corresponding to QFI 1, the QFI 2 allocated for the group session, and the corresponding QFI 2 QoS configuration file, QFI 3 assigned to the group session, QoS configuration file corresponding to QFI 3, indication information and association relationship.

The above-mentioned relationship refers to the relationship between QFI 2 and QFI 1, and the relationship between QFI 3 and QFI 1. It should be noted that when QFI 1 and QFI 2 are the same, the above group configuration request does not need to indicate the association relationship between QFI 2 and QFI 1. When QFI 1 is the same as QFI 3, the above group configuration request does not need to indicate the association between QFI 3 and QFI 1.

Step 712a, the SMF configures the QoS rule for the group session to the terminal 1 through the N1 message, and the QoS rule is applied to the QoS flow identified by the QFI 2 of the group session.

Step 712b, the SMF configures the QoS rule for the group session to the terminal 2 through the N1 message, and the QoS rule is applied to the QoS flow identified by the QFI 3 of the group session.

Step 713 to step 715 are the same as step 511 to step 513.

The embodiment in FIG. 7 can achieve the same technical effect as the embodiment in FIG. 5 . The main difference between the embodiment in FIG. 7 and the embodiment in FIG. 5 is that each of the aggregation groups in the embodiment in FIG. The terminal perceives the group session, and the terminal and the base station send and receive data through the group session, that is, after the terminal receives the data packet from the communication device, it sends it to the base station through the group session, and the base station sends it to the UPF through the group session. Wherein, the QFI corresponding to the group session between the terminal and the base station (such as the above QFI 2, QFI 3) and the QFI corresponding to the group session between the base station and the UPF (such as the above QFI 1) may be the same or different. However, in the above-mentioned embodiment of FIG. 5 , each terminal in the aggregation group is not aware of the group session, and data is sent and received between the terminal and the base station through the session of the terminal.

It can be understood that, in order to implement the functions in the above embodiments, the base station, session management network element, policy control network element, user plane network element and terminal include hardware structures and/or software modules corresponding to each function. Those skilled in the art should easily realize that the present application can be implemented in the form of hardware or a combination of hardware and computer software with reference to the units and method steps of the examples described in the embodiments disclosed in the present application. Whether a certain function is executed by hardware or computer software drives the hardware depends on the specific application scenario and design constraints of the technical solution.

FIG. 8 and FIG. 9 are schematic structural diagrams of possible communication devices provided by the embodiments of the present application. These communication devices can be used to implement the functions of the base station, session management network element, policy control network element, user plane network element, and terminal in the above method embodiments, so the beneficial effects of the above method embodiments can also be realized. 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 it may be a Modules (such as chips) for surface network elements and terminals.

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

When the communication device 800 is used to realize the function of the session management network element in the method embodiments shown in FIG. 2, FIG. 4 to FIG. The group includes at least two terminals, the at least two terminals are communicatively connected to the communication device, and the at least two terminals provide aggregation services for the communication device; according to the identifier of the group session, the group session is established.

In a possible implementation method, the transceiver 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 It is used to request to join the aggregation group or to request to establish a group session for the communication device; the processing unit 810 is configured to determine that the first terminal is included in the terminal list, and then authorize the first terminal to join the aggregation group, wherein , the terminal list includes terminals capable of providing aggregation services for the communication device.

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

In a possible implementation method, the transceiver unit 820 is configured to send the QoS rule used 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 the session identification information of the first terminal and the second QoS information; or, when the first request is used to request to establish a group session for the communication device, the QoS rule includes the group The identification information of the group session and the second QoS information. Optionally, the QoS rule further includes the above-mentioned first indication information.

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

In a possible implementation method, the transceiver unit 820 is configured to receive a joining request from a first terminal, where the joining request includes the identification information of the first terminal and the identification information of the communication device, and the joining request is used to request Join the aggregation group; the processing unit 810 is configured to determine the aggregation group according to the location 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 are connected to the same wireless access network device.

In a possible implementation method, the transceiver 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 and identification information of 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 terminal in the aggregation group.

In a possible implementation method, the transceiver unit 820 is configured to send the 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 above-mentioned second indication information.

In a possible implementation method, the transceiver unit 820 is configured to send the 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 transceiver unit 820 is configured to send a session establishment notification to the terminals in the aggregation group, the session establishment notification includes the identification information of the group session, and the session establishment notification is used to notify the A terminal in the aggregated group initiates group session establishment; receives a session establishment request from a terminal in the aggregated group, the session establishment request includes the identification information of the group session, and the session establishment request is used to request the establishment of the group session Group conversation.

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

When the communication device 800 is used to realize the functions of the base station in the method embodiments shown in FIGS. The identification information of the corresponding group session, the first message is used to request to establish the group session; the aggregation group includes at least two terminals, the at least two terminals are connected to the communication device in communication, and the at least two terminals are The communication device provides aggregation services; 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 first QoS information includes the first QFI and the first bandwidth parameter corresponding to the first QFI; the second QoS information includes the second QFI.

In a possible implementation method, the processing unit 810 is configured to determine an offload strategy according to the first bandwidth parameter and the channel state information of the first terminal, and the offload strategy includes the offload ratio of the first terminal; The offloading strategy determines the second bandwidth parameter; the transceiver unit 820 is configured to send the second bandwidth parameter to the first terminal.

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

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

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

In a possible implementation method, the processing unit 810 is configured to determine an offload strategy according to the third bandwidth parameter and the channel state information of the terminals in the aggregation group, the offload strategy includes the terminals in the aggregation group according to the offload strategy, determine the fourth bandwidth parameter; the transceiver unit 820 is configured to send the fourth bandwidth parameter to terminals in the aggregation group.

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

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

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

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

When the communication device 800 is used to implement the functions of the terminal in the method embodiments shown in FIGS. A rule for an uplink data packet from a communication device, and/or a rule for instructing the terminal to send a downlink data packet from the wireless access network device; the processing unit 810 is configured to transmit to the wireless access network through the transceiver unit 820 according to the distribution rule The network access device sends the uplink data packet from the communication device and/or sends the downlink data packet from the wireless access network device to the communication device.

In a possible implementation method, the transceiver unit 820 is configured to send a first request to a session management network element, where the first request includes the identification information of the terminal and the identification information of the communication device; A QoS rule for a group session; wherein, in the case that the first request is used to request to join an aggregated group, the QoS rule includes the identification information of the session of the terminal and the QoS information of the terminal; or, In the case that 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 QoS information of the terminal, and 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, the transceiver unit 820 is configured to receive the bandwidth parameter corresponding to the group session from the wireless access network device and the offload ratio of the terminal; the processing unit 810 is configured to The bandwidth parameter corresponding to the session and the offload ratio of the terminal determine the bandwidth parameter corresponding to the QFI.

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

In a possible implementation method, the transceiver unit 820 is configured to receive a session establishment notification from a session management network element when the first request is for requesting establishment of a group session for the communication device, the session establishment notification The first request includes the identification information of the group session, and the session establishment notification is used to notify the terminal to initiate the establishment of the group session; then the first request also includes the identification information of the group session.

More detailed descriptions about the processing unit 810 and the transceiver unit 820 can be directly obtained by referring to the relevant descriptions in the method embodiments shown in FIG. 2 , and FIG. 4 to FIG. 7 , and details are not repeated here.

As shown in FIG. 9 , a 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 can be 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 executed by the processor 910 or storing input data required by the processor 910 to execute the instructions or storing data generated after the processor 910 executes the instructions.

When the communication device 900 is used to implement the methods shown in FIG. 2 , FIG. 4 to FIG. 7 , the processor 910 is used to implement the functions of the above-mentioned processing unit 810 , and the interface circuit 920 is used to implement the functions of the above-mentioned transceiver unit 820 .

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

When the above 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 embodiment. The base station chip receives information from other modules in the base station (such as radio frequency modules or antennas), and the information is sent to the base station by the terminal; or, the base station chip sends information to other modules in the base station (such as radio frequency modules or antennas). The information is sent by the base station to the terminal.

It can be understood that the processor in the embodiments of the present application can be a central processing unit (Central Processing Unit, CPU), and can also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application-specific integrated circuits (Application Specific Integrated Circuit, ASIC), Field Programmable Gate Array (Field Programmable Gate Array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. A general-purpose processor can be a microprocessor, or any conventional processor.

The method steps in the embodiments of the present application may be implemented by means of hardware, or may be implemented by means of a processor executing software instructions. Software instructions can be composed of corresponding software modules, and software modules can 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, hard disk, removable hard disk, 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 a component of the processor. The processor and storage medium can be located in the ASIC. In addition, the ASIC can be located in the base station or the terminal. Certainly, the processor and the storage medium may also exist in the base station or the terminal as discrete components.

In the above embodiments, all or part of them may be implemented by software, hardware, firmware or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer programs or instructions. When the computer program or instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are executed 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 devices. The computer program or instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program or instructions may be downloaded from a website, computer, A server or data center transmits to another website site, computer, server or data center by wired or wireless means. The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrating one or more available media. The available medium may be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; it may also be an optical medium, such as a digital video disk; and it may also be a semiconductor medium, such as a solid state disk. The computer readable storage medium may be a volatile or a nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

In each embodiment of the present application, if there is no special explanation and logical conflict, the terms and/or descriptions between different embodiments are consistent and can be referred to each other, and the technical features in different embodiments are based on their inherent Logical relationships can be combined to form new embodiments.

In this application, "at least one" means one or more, and "multiple" means two or more. "And/or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone, where A, B can be singular or plural. In the text description of this application, the character "/" generally indicates that the contextual objects are an "or" relationship; in the formulas of this application, the character "/" indicates that the contextual objects are a "division" Relationship.

It can be understood that the various numbers involved in the embodiments of the present application are only for convenience of description, and are not used to limit the scope of the embodiments of the present application. The size of the serial numbers of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its functions and internal logic.

Claims

A wireless communication method applied to a session management network element, characterized in that it includes:

Generate an identifier of a group session corresponding to an aggregation group, the aggregation group includes at least two terminals, the at least two terminals are communicatively connected to the communication device, and the at least two terminals provide aggregation services for the communication device ;

Establish the group session according to the identifier of the group session.
The method of claim 1, further comprising:

receiving 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 use requesting to establish a group session for the communication device;

Determining that the first terminal is included in the terminal list, authorizing the first terminal to join the aggregation group, where the terminal list includes terminals capable of providing aggregation services for the communication device.
The method of claim 2, further comprising:

sending a first message to the radio access network device, where the first message includes the identification information of the group session, the identification information of the first terminal, and the first QoS of the QoS flow of the group session information and second QoS information of the QoS flow of the session of the first terminal, and the first message is used to request establishment of the group session.
The method of claim 3, wherein

The first QoS information includes a first quality of service flow identifier QFI and a first bandwidth parameter corresponding to the first QFI;

The second QoS information includes a second QFI.
The method of claim 4, wherein

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 the second bandwidth parameter corresponding to the second QFI.
The method of claim 5, wherein,

The first message further includes a first association relationship, where the first association relationship is used to indicate the association relationship between the first QFI and the second QFI; or,

The first QFI is the same as the second QFI.
The method according to any one 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 to request to join the aggregation group, the QoS rule includes the identification information of the session of the first terminal and the second QoS information; or,

In a case where the first request is for requesting to establish a group session for the communication device, the QoS rule includes identification information of the group session and the second QoS information.
The method of claim 1, further comprising:

receiving 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 aggregation services for the communication device ;

The aggregation group is determined according to the location information of the terminals in the terminal list, where the at least two terminals included in the aggregation group are from the terminal list.
The method of claim 1, further comprising:

receiving a joining request from a first terminal, where the joining request includes identification information of the first terminal and identification information of the communication device, and the joining request is used to request joining the aggregation group;

Determine the aggregation group according to the location 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 are connected to The same wireless access network device.
The method according to claim 8 or 9, further comprising:

sending a first message to the radio access network device, where the first message includes the identification information of the group session, the identification information of the terminals in the aggregated group, and the third information of the QoS flow of the group session QoS information and fourth QoS information of the QoS flows of the terminals in the aggregation group.
The method of claim 10, wherein

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.
The method according to claim 11, wherein the first message further includes second indication information, and the second indication information indicates that the radio access network device or the terminal in the aggregation group Determine a fourth bandwidth parameter corresponding to the fourth QFI.
The method according to claim 11 or 12, characterized in that,

The first message further includes a second association relationship, and the second association relationship is used to indicate the association relationship between the third QFI and the fourth QFI; or,

The third QFI is the same as the fourth QFI.
The method according to any one of claims 11 to 13, further comprising:

Sending the QoS rule used 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.
The method according to any one of claims 11 to 13, further comprising:

sending the QoS rule used 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.
A wireless communication method applied to wireless access network equipment, characterized in that it includes:

receiving 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 establishment of the group session; the aggregation group Including at least two terminals, the at least two terminals are communicatively connected to the communication device, and the at least two terminals provide aggregation services for the communication device;

Establish the group session according to the identification information of the group session.
The method of claim 16, wherein,

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

The first QoS information includes a first quality of service flow identifier QFI and a first bandwidth parameter corresponding to the first QFI;

The second QoS information includes a second QFI.
The method of claim 17, wherein,

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 the second bandwidth parameter corresponding to the second QFI.
The method of claim 18, further comprising:

determining an offload strategy according to the first bandwidth parameter and the channel state information of the first terminal, where the offload strategy includes the offload ratio of the first terminal;

Determine the second bandwidth parameter according to the offload strategy;

sending the second bandwidth parameter to the first terminal.
The method of claim 18, further comprising:

Sending the first bandwidth parameter and the offload ratio of the first terminal to the first terminal, where the first bandwidth parameter and the offload ratio of the first terminal are used to determine the second bandwidth parameter.
A method according to any one of claims 17 to 20, wherein,

The first message also includes a first association relationship, and the first association relationship is used to indicate the association relationship between the first QFI and the second QFI; or, the first QFI and the second QFI Two QFIs are the same;

The method also includes:

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

generating a second data packet according to the first association relationship, the second data packet including the first QFI and the first data;

Send the second data packet to a user plane network element.
The method of claim 16, wherein,

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;

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;

The method also includes:

determining an offload strategy according to the third bandwidth parameter and the channel state information of the terminals in the aggregation group, where the offload strategy includes the offload ratio of the terminals in the aggregation group;

determining the fourth bandwidth parameter according to the offload strategy;

sending the fourth bandwidth parameter to the terminals in the aggregation group.
The method of claim 22, further comprising:

Sending the third bandwidth parameter and the offload ratio of the terminals in the aggregation group to the terminals in the aggregation group, where the third bandwidth parameter and the offload ratio of the terminals in the aggregation group are used for determining the fourth bandwidth parameter.
The method according to any one of claims 16 to 23, further comprising:

sending an offloading rule to terminals in the aggregation group, where the offloading rule is used to instruct the terminal to send an uplink data packet from the communication device, and/or instruct the terminal to send an uplink data packet from the wireless access Rules for downlink data packets of network devices.
A wireless communication method applied to a terminal, characterized in that it includes:

receiving a distribution rule from a wireless access network device, where the distribution rule is used to instruct the terminal to send an uplink data packet from the communication device, and/or instruct the terminal to send a downlink data packet from the wireless access network device Packet rules;

Send the uplink data packet from the communication device to the radio access network device and/or send the downlink data packet from the radio access network device to the communication device according to the distribution rule.
The method of claim 25, further comprising:

sending 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 QoS rules for group sessions from the session management network element;

Wherein, when the first request is used to request to join an aggregation group, the QoS rule includes the identification information of the session of the terminal and the QoS information of the terminal; or,

In the case that the first request is used to request to establish a group session for the communication device, the QoS rule includes the identification information of the group session and the QoS information of the terminal, and the QoS information includes the service Quality logo QFI.
The method of claim 26, further comprising:

receiving the bandwidth parameter corresponding to the group session from the radio access network device and the offload ratio of the terminal;

Determine the bandwidth parameter corresponding to the QFI according to the bandwidth parameter corresponding to the group session and the offload ratio of the terminal.
The method according to claim 26 or 27, wherein, in the case where the first request is for requesting establishment of a group session for the communication device, the method further comprises:

receiving a user routing policy URSP, where the URSP includes identification information of the communication device;

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

After the data packet from the communication device is detected, the first request is sent to the session management network element according to the URSP.
The method according to any one of claims 26 to 28, wherein, in the case where the first request is for requesting establishment of a group session for the communication device, the method further comprises:

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 group session establishment;

Then the first request further includes identification information of the group session.
A communication device, characterized by comprising a module for performing the method according to any one of claims 1 to 15, or a module for performing the method according to any one of claims 16 to 24, or Means for carrying out the method as claimed in any one of claims 25 to 29.
A communication device, characterized in that it includes a processor and an interface circuit, the processor is used to communicate with other devices through the interface circuit, and execute the method described in any one of claims 1 to 15, or implement the claim 16 to 24, or perform the method of any one of claims 25 to 29.
A communication system, characterized by comprising a session management network element and a radio access network device configured to perform the method according to any one of claims 16 to 24; wherein the session management network element is used to provide the The wireless access network device sends the first message.
A computer-readable storage medium, characterized in that instructions are stored in the computer-readable storage medium, and when the instructions are run on a communication device, the method described in any one of claims 1 to 29 is executed .
A computer program product, characterized in that the computer program product includes a computer program or an instruction, and when the computer program or instruction is executed by a communication device, the method described in any one of claims 1 to 29 is executed.