A communication method and device

Abstract

A communication method and device, the method comprising: a first network element sends N groups of QoS feature information corresponding to a first QoS flow to a second network element, and then receives first indication information from the second network element, the first indication information is used to indicate a group of QoS feature information selected by the second network element for the first QoS flow, the group of QoS feature information selected for the first QoS flow is one of the N groups of QoS feature information; the first network element sends second indication information to a third network element, the second indication information is used to indicate a group of QoS feature information selected for the first QoS flow. The first QoS flow can be specifically carried on the second network element, and the above technical solution can be used to enable the second network element to participate in the selection of QoS feature information, thereby ensuring that the QoS parameters of the first QoS flow can match the QoS that can be met by the auxiliary network device, effectively guaranteeing the service quality of the service, and improving the user's service experience.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a communication method and device. Background Art

[0002] In dual connectivity (DC) mode, the terminal device will maintain connection with the primary network device and the secondary network device at the same time, and the primary network device can decide to establish the terminal device's Quality of Service (QoS) flow on the secondary network device. In the prior art, the primary network device can select a set of QoS parameters for the QoS flow based on its own implementation and indicate it to the secondary network device. However, since the primary network device may not know the air interface link status of the secondary network device or the board capabilities of the secondary network device, the QoS parameters selected by the primary network device may not match the QoS that the secondary network device can actually guarantee, which in turn causes the QoS of the user's service to be unable to be guaranteed, affecting the service experience. Summary of the invention

[0003] The embodiments of the present application provide a communication method and apparatus for selecting QoS parameters that can guarantee the service quality for a QoS flow when there are two nodes on the access side, thereby improving the user's service experience.

[0004] In a first aspect, an embodiment of the present application provides a communication method, which can be executed by a first network element or by a component (such as a chip or circuit) configured in the first network element, the method comprising: the first network element sends N groups of QoS feature information corresponding to a first QoS flow to a second network element, where N is an integer greater than or equal to 1; the first network element receives first indication information from the second network element, and the first indication information is used to indicate a group of QoS feature information selected by the second network element for the first QoS flow, and the group of QoS feature information selected for the first QoS flow is one of the N groups of QoS feature information; the first network element sends second indication information to a third network element, and the second indication information is used to indicate the group of QoS feature information selected for the first QoS flow.

[0005] By adopting this technical solution, the first network element can send N groups of QoS feature information corresponding to the first QoS flow to the second network element, so that the second network element can participate in the selection of QoS feature information, thereby ensuring that the QoS parameters of the first QoS flow can match the QoS that can be met by the auxiliary network device, effectively ensuring the service quality of the business and improving the user's service experience.

[0006] In a possible design of the first aspect, the first network element may be a main network device accessed by the terminal device, the second network element may be an auxiliary network device accessed by the terminal device, and the third network element may be a core network device; or, the first network element may be a central unit (CU) in an auxiliary network device accessed by the terminal device, the second network element may be a distributed unit (DU) in an auxiliary network device accessed by the terminal device, and the third network element may be a main network device accessed by the terminal device; or, the first network element may be a CU in a network device accessed by the terminal device, the second network element may be a DU in a network device accessed by the terminal device, and the third network element may be a core network device.

[0007] In the embodiment of the present application, the two nodes on the access side may be the main network device and the auxiliary network device to which the terminal device accesses, or may be the CU and DU in the network device to which the terminal device accesses. In the first scenario, if the main network device decides to divert the first QoS flow to the auxiliary network device for transmission, the main network device may send multiple groups of QoS feature information corresponding to the first QoS flow to the auxiliary network device, and the auxiliary network device selects the QoS feature information to be applied for the first QoS flow, and then indicates the selected group of QoS feature information to the main network device. In this way, the auxiliary network device can participate in the selection of QoS feature information, thereby ensuring that the QoS parameters of the first QoS flow diverted to the auxiliary network device can match the QoS that the auxiliary network device can meet, effectively guaranteeing the service quality of the service and improving the user's service experience.

[0008] In the second scenario, since the QoS flow of the service is usually carried on the DU, multiple groups of QoS feature information corresponding to the QoS flow are sent to the DU through the CU, and the DU selects a suitable group of QoS feature information and feeds it back to the CU. This allows the final selected QoS feature information to match the service quality that the DU can guarantee, thereby effectively ensuring the service quality of the service and improving the user's service experience.

[0009] In a possible design of the first aspect, the method also includes: the first network element receives M groups of QoS feature information corresponding to the first QoS flow from the third network element, and then determines the N groups of QoS feature information based on the M groups of QoS feature information, where M is an integer greater than or equal to N.

[0010] In a possible design of the first aspect, the method also includes: the first network element receives auxiliary information from the second network element, and the auxiliary information is used to indicate the quality of service QoS that the second network element can meet. In this way, the first network element determines the N groups of QoS feature information based on the M groups of QoS feature information, and determines the N groups of QoS feature information from the M groups of QoS feature information based on the auxiliary information.

[0011] In a possible design of the first aspect, the method also includes: the first network element can also modify the values ​​of one or more QoS parameters in one or more groups of QoS feature information in the N groups of QoS feature information.

[0012] In an embodiment of the present application, the first network element may filter the M groups of QoS feature information corresponding to the first QoS flow received from the third network element, and send part or all of the groups of QoS feature information that meet the conditions to the second network element. The filtering may refer to filtering the number of QoS feature information or changing one or more QoS in one or more groups of QoS feature information. This can effectively improve the processing effect of the second network element.

[0013] In a possible design of the first aspect, each group of QoS feature information may include values ​​of one or more of the following QoS parameters: uplink maximum flow bit rate (maximum flow bit rate, MFBR), downlink MFBR, uplink guaranteed flow bit rate (guaranteed flow bit rate, GFBR), downlink GFBR, uplink maximum packet loss rate (maximum packet loss rate, MPLR), downlink MPLR, packet delay budget (packet delay budget, PDB), packet error rate (packet error rate, PER), fifth generation QoS indication (5G QoS identifier, 5QI), maximum data burst volume (maximum data burst volume, MDBV), and priority of QoS flow.

[0014] In a second aspect, an embodiment of the present application provides a communication method, which can be executed by a second network element or by a component (such as a chip or circuit) configured in the second network element, the method comprising: the second network element receives N groups of QoS feature information corresponding to a first QoS flow from a first network element, where N is an integer greater than or equal to 1; the second network element selects a group of QoS feature information for the first QoS flow from the N groups of QoS feature information; the second network element sends first indication information to the first network element, and the first indication information is used to indicate a group of QoS feature information selected by the second network element for the first QoS flow.

[0015] In a possible design of the second aspect, the first network element may be a main network device accessed by the terminal device, the second network element may be an auxiliary network device accessed by the terminal device, and the third network element may be a core network device; or, the first network element may be a central unit CU in an auxiliary network device accessed by the terminal device, the second network element may be a distributed unit DU in an auxiliary network device accessed by the terminal device, and the third network element may be a main network device accessed by the terminal device; or, the first network element may be a CU in a network device accessed by the terminal device, the second network element may be a DU in a network device accessed by the terminal device, and the third network element may be a core network device.

[0016] In a possible design of the second aspect, the method also includes: the second network element sends auxiliary information to the first network element, where the auxiliary information is used to indicate a quality of service QoS that can be met by the second network element.

[0017] In a possible design of the second aspect, each group of QoS feature information may include the values ​​of one or more of the following QoS parameters: uplink maximum flow bit rate MFBR, downlink MFBR, uplink guaranteed flow bit rate GFBR, downlink GFBR, uplink maximum packet loss rate MPLR, downlink MPLR, packet delay budget PDB, packet error rate PER, fifth-generation QoS indication 5QI, maximum data burst volume MDBV, and priority of QoS flow.

[0018] The beneficial effects of various possible designs of the second aspect can be referred to the corresponding description in the first aspect and will not be repeated here.

[0019] In a third aspect, an embodiment of the present application provides another communication method, which can be executed by a primary network device or by a component (such as a chip or circuit) configured on the primary network device. The method includes: the primary network device sends a first indication message to the secondary network device, and the first indication message is used to instruct the secondary network device to turn on the high-speed mode of the terminal device; the primary network device receives a high-speed configuration generated by the secondary network device for the terminal device from the secondary network device.

[0020] By adopting this technical solution, the main network device and the auxiliary network device can maintain synchronization in high-speed mode, thereby effectively enhancing the stability and reliability of business transmission and improving user experience.

[0021] In a possible design of the third aspect, the first indication information is included in a secondary station add request message, and the high-speed configuration is included in a secondary station add request confirmation message; or, the first indication information is included in a secondary station modification request message, and the high-speed configuration is included in a secondary station modification request confirmation message.

[0022] In an embodiment of the present application, the main network device can synchronize the high-speed mode during the process of configuring dual connections for the terminal device or changing dual connections, thereby effectively improving the flexibility of the method.

[0023] In a possible design of the third aspect, the method also includes: the primary network device sends an RRC reconfiguration message to the terminal device, and the RRC reconfiguration message includes the high-speed configuration; the primary network device receives an RRC reconfiguration completion message from the terminal device, and sends the RRC reconfiguration completion message to the secondary network device, and the RRC reconfiguration completion message is used to indicate that the terminal device has completed the high-speed configuration.

[0024] In a possible design of the third aspect, the method also includes: the main network device turns off the high-speed mode of the terminal device; the main network device sends a second indication information to the auxiliary network device, and the second indication information is used to instruct the auxiliary network device to turn off the high-speed mode of the terminal device.

[0025] In a possible design of the third aspect, the method also includes: the main network device receives third indication information from the auxiliary network device, and the third indication information is used to instruct the main network device to turn off the high-speed mode of the terminal device; the main network device turns off the high-speed mode of the terminal device according to the third indication information.

[0026] In the embodiment of the present application, the primary network device and the secondary network device may also synchronously turn off the high-speed mode of the terminal device.

[0027] In a possible design of the third aspect, the method also includes: the main network device receives fourth indication information from the terminal device or the core network device, and the fourth indication information is used to indicate that the terminal device supports the high-speed mode in the dual connection scenario.

[0028] In a fourth aspect, an embodiment of the present application provides another communication method, which can be executed by a secondary network device or by a component (such as a chip or circuit) configured in the secondary network device. The method includes: the secondary network device receives a first indication message from the main network device, and the first indication message is used to instruct the secondary network device to turn on the high-speed mode of the terminal device; the secondary network device generates a high-speed configuration for the terminal device based on the first indication message; and the secondary network device sends the high-speed configuration to the main network device.

[0029] In a possible design of the fourth aspect, the first indication information is included in a secondary station add request message, and the high-speed configuration is included in a secondary station add request confirmation message; or, the first indication information is included in a secondary station modification request message, and the high-speed configuration is included in a secondary station modification request confirmation message.

[0030] In a possible design of the fourth aspect, the method also includes: the secondary network device receives an RRC reconfiguration completion message from the primary network device, and the RRC reconfiguration completion message is used to indicate that the terminal device has completed the high-speed configuration.

[0031] In a possible design of the fourth aspect, the method also includes: the auxiliary network device receives second indication information from the main network device, and the second indication information is used to instruct the auxiliary network device to turn off the high-speed mode of the terminal device; the auxiliary network device turns off the high-speed mode of the terminal device according to the second indication information.

[0032] In a possible design of the fourth aspect, the method also includes: the auxiliary network device turns off the high-speed mode of the terminal device; the auxiliary network device sends a third indication information to the main network device, and the third indication information is used to instruct the main network device to turn off the high-speed mode of the terminal device.

[0033] In a possible design of the fourth aspect, the auxiliary network device includes a central unit CU and a distributed unit DU; the auxiliary network device receives the first indication information from the main network device, which may include: the CU of the auxiliary network device receives the first indication information from the main network device; the auxiliary network device generates a high-speed configuration for the terminal device according to the first indication information, which may include: the CU of the auxiliary network device sends the first indication information to the DU of the auxiliary network device, and the DU of the auxiliary network device generates the high-speed configuration according to the first indication information; the auxiliary network device sends the high-speed configuration to the main network device, which may include: the DU of the auxiliary network device sends the high-speed configuration to the CU of the auxiliary network device, and the CU of the auxiliary network device sends the high-speed configuration to the main network device.

[0034] The beneficial effects of various possible designs of the fourth aspect can be referred to the corresponding description in the third aspect and will not be repeated here.

[0035] In a fifth aspect, an embodiment of the present application provides a communication device, which has the function of implementing the first aspect or any possible design of the first aspect, or has the function of implementing the second aspect or any possible design of the second network element, or has the function of implementing the third aspect or any possible design of the third aspect, or has the function of implementing the fourth aspect or any possible design of the fourth aspect. The function of the auxiliary network device. The device can be a network device or a chip included in the network device. The functions of the above-mentioned communication device can be implemented by hardware, or can be implemented by hardware executing corresponding software, and the hardware or software includes one or more modules or units or means corresponding to the above-mentioned functions.

[0036] In a possible design, the structure of the device includes a processing module and a transceiver module, wherein the processing module is configured to support the device to perform the function corresponding to the first network element in the first aspect or any one of the designs of the first aspect, or to perform the function corresponding to the second network element in the second aspect or any one of the designs of the second aspect, or to perform the function corresponding to the main network device in the third aspect or any one of the possible designs of the third aspect, or to perform the function corresponding to the auxiliary network device in any one of the possible designs of the fourth aspect or the fifth aspect. The transceiver module is used to support the communication between the device and other communication devices. For example, when the device is the first network element, N groups of QoS feature information corresponding to the first QoS flow can be sent to the second network element. The communication device may also include a storage module, which is coupled to the processing module and stores program instructions and data necessary for the device. As an example, the processing module may be a processor, the communication module may be a transceiver, and the storage module may be a memory. The memory may be integrated with the processor or may be separately provided from the processor, which is not limited in the present application.

[0037] In another possible design, the structure of the device includes a processor and may also include a memory. The processor is coupled to the memory and can be used to execute computer program instructions stored in the memory so that the device executes the method in the first aspect or any possible design of the first aspect, or executes the method in the second aspect or any possible design of the second aspect, or executes the method in the third aspect or any possible design of the third aspect, or executes the method in the fourth aspect or any possible design of the fourth aspect. Optionally, the device also includes a communication interface, and the processor is coupled to the communication interface. When the device is a network device, the communication interface can be a transceiver or an input / output interface; when the device is a chip included in the network device, the communication interface can be an input / output interface of the chip. Optionally, the transceiver can be a transceiver circuit, and the input / output interface can be an input / output circuit.

[0038] In a sixth aspect, an embodiment of the present application provides a chip system, comprising: a processor, the processor being coupled to a memory, the memory being used to store programs or instructions, and when the program or instructions are executed by the processor, the chip system implements the method of the first aspect or any possible design of the first aspect, or implements the second aspect or any possible design of the second aspect, or implements the third aspect or any possible design of the third aspect, or implements the fourth aspect or any possible design of the fourth aspect.

[0039] Optionally, the chip system also includes an interface circuit, which is used to interact with code instructions to the processor.

[0040] Optionally, there may be one or more processors in the chip system, and the processor may be implemented by hardware or software. When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc. When implemented by software, the processor may be a general-purpose processor implemented by reading software code stored in a memory.

[0041] Optionally, the memory in the chip system may be one or more. The memory may be integrated with the processor or may be separately provided with the processor, which is not limited in the present application. Exemplarily, the memory may be a non-transient processor, such as a read-only memory ROM, which may be integrated with the processor on the same chip or may be provided on different chips. The present application does not specifically limit the type of memory and the arrangement of the memory and the processor.

[0042] In the seventh aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program or instructions stored thereon. When the computer program or instructions are executed, the computer executes the method of the first aspect or any possible design of the first aspect, or executes the method of the second aspect or any possible design of the second aspect, or executes the method of the third aspect or any possible design of the third aspect, or executes the method of the fourth aspect or any possible design of the fourth aspect.

[0043] In an eighth aspect, an embodiment of the present application provides a computer program product. When a computer reads and executes the computer program product, the computer executes the method in the first aspect or any possible design of the first aspect, or executes the method in the second aspect or any possible design of the second aspect, or executes the method in the third aspect or any possible design of the third aspect, or executes the fourth aspect or any possible design of the fourth aspect.

[0044] In a ninth aspect, an embodiment of the present application provides a communication system, the communication system comprising the first network element and the second network element described in the first aspect and the second aspect. Optionally, the communication system may further include at least one terminal device. Optionally, the communication system may further include a third network element.

[0045] In a tenth aspect, an embodiment of the present application provides a communication system, the communication system comprising the primary network device and the secondary network device described in the third aspect and the fourth aspect. Optionally, the communication system may also include at least one terminal device. Optionally, the communication system may also include a core network device. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A schematic diagram of a network architecture of a communication system applicable to an embodiment of the present application;

[0047] Figure 2a , Figure 2b , Figure 2c and Figure 2d A schematic diagram of a dual connection scenario provided in an embodiment of the present application;

[0048] Figure 3 A flow chart of a communication method provided in an embodiment of the present application;

[0049] Figure 4a , Figure 4b and Figure 4c A schematic diagram of an application scenario of a communication method according to an embodiment of the present application;

[0050] Figure 5a and Figure 5b A specific example of a communication method provided in an embodiment of the present application;

[0051] Figure 6 A flowchart of another communication method provided in an embodiment of the present application;

[0052] Figure 7 A specific implementation method of synchronizing a high-speed mode between a primary network device and a secondary network device in another communication method provided in an embodiment of the present application;

[0053] Figure 8 Another specific implementation method of synchronizing a high-speed mode between a primary network device and a secondary network device in another communication method provided in an embodiment of the present application;

[0054] Fig. 9 A schematic diagram of a communication device provided in an embodiment of the present application;

[0055] Fig.10 A schematic diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0057] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: global system for mobile communications (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), fifth generation (5G) communication system or new radio (NR) system, or applied to future communication systems or other similar communication systems.

[0058] Please refer to Figure 1 , is a schematic diagram of a network architecture of a communication system applicable to an embodiment of the present application. The communication system includes a core network device 110, a wireless access network device 120 and at least one terminal device (such as Figure 1 The terminal device 130 and the terminal device 140 in the figure are connected to the wireless access network device by wireless means, and the wireless access network device is connected to the core network device by wireless or wired means. The core network device and the wireless access network device can be independent and different physical devices, or the functions of the core network device and the logical functions of the wireless access network device can be integrated on the same physical device, or the functions of some core network devices and some wireless access network devices can be integrated on one physical device. The terminal device can be fixed or movable. Figure 1 This is just a schematic diagram. The communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices. Figure 1 The embodiments of the present application do not limit the number of core network devices, wireless access network devices and terminal devices included in the communication system.

[0059] The terminal device is a device with wireless transceiver function, which is connected to the wireless access network device by wireless means, so as to access the communication system. The terminal device may also be referred to as a terminal, user equipment (UE), a mobile station, a mobile terminal, etc. The terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality terminal device, an augmented reality terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in remote surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal device.

[0060] As an example but not limitation, the terminal device can also be a wearable device. Wearable devices can also be called wearable smart devices or smart wearable devices, etc., which are a general term for the application of wearable technology to intelligently design and develop wearable devices for daily wear, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also realize powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and can realize complete or partial functions without relying on smartphones, such as smart watches or smart glasses, etc., as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets, smart helmets, and smart jewelry for vital sign monitoring.

[0061] The terminal device can also be a vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit that is built into the vehicle as one or more components or units. The vehicle can implement the method of the present application through the built-in vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit.

[0062] The wireless access network device is a device in the network used to access the terminal device to the wireless network device. The wireless access network device is a node in the wireless access network, which can also be called a base station, or a RAN node (or device). In this application, the wireless access network device can be referred to as a network device. Unless otherwise specified, the network devices in the following text all refer to wireless access network devices. The wireless access network device can be a base station, an evolved base station (evolved NodeB, eNodeB) in an LTE system or an evolved LTE system (LTE-Advanced, LTE-A), a next generation base station (next generation NodeB, gNB) in a 5G communication system, a transmission reception point (TRP), a base band unit (base band unit, BBU), a WiFi access point (access point, AP), a base station in a future mobile communication system, or an access node in a WiFi system. The wireless access network device can also be a module or unit that completes some functions of a base station, for example, a central unit (CU) or a distributed unit (DU). The embodiments of the present application do not limit the specific technology and specific device form adopted by the wireless access network device.

[0063] In a separate deployment architecture where the wireless access network equipment includes CU and DU, a CU can be connected to one or more DUs, and there is a control plane interface between the CU and the DU. Specifically, the CU is used to support protocols such as radio resource control (RRC), packet data convergence protocol (PDCP), and service data adaptation protocol (SDAP); the DU is used to support radio link control (RLC) layer protocols, media access control (MAC) layer protocols, and physical layer protocols.

[0064] The network devices and terminal devices in the embodiments of the present application can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on airplanes, balloons, and artificial satellites in the air. The embodiments of the present application do not limit the application scenarios of the network devices and terminal devices.

[0065] The network device and the terminal device may communicate through the authorized spectrum, or may communicate through the unauthorized spectrum, or may communicate through both the authorized spectrum and the unauthorized spectrum. The network device and the terminal device may communicate through the spectrum below 6 gigahertz (GHz), or may communicate through the spectrum above 6 GHz, or may communicate through the spectrum below 6 GHz and the spectrum above 6 GHz at the same time. The embodiment of the present application does not limit the spectrum resources used between the network device and the terminal device.

[0066] The embodiments of the present application can be applied in a dual connectivity (DC) scenario, where the dual connectivity refers to a terminal device simultaneously accessing two network devices, where one network device is a primary network device and the other network device is a secondary network device. The primary network device may also be referred to as a master station or a master node (MN), and the secondary network device may also be referred to as a secondary station or a secondary node (SN).

[0067] Figure 2a to Figure 2d A schematic diagram of a dual connection scenario provided in an embodiment of the present application. The dual connection when the core network is an evolved packet core (EPC) can also be called an evolved universal terrestrial radio access and new air interface dual connection (E-UTRA NR dual connectivity, EN-DC) mode. For example, Figure 2a As shown, the core network is EPC, the main network device is an LTE base station, and the auxiliary network device is an NR base station. In this scenario, there is an X2 interface between the LTE base station and the NR base station, at least a control plane connection, and there may also be a user plane connection; there is an S1 interface between the LTE base station and the EPC, at least a control plane connection, and there may also be a user plane connection; there is an S1-U interface between the NR base station and the EPC, that is, there is only a user plane connection. The LTE base station can provide air interface resources for the terminal device through at least one LTE cell, and the at least one LTE cell is called a master cell group (MCG). Correspondingly, the NR base station can also provide air interface resources for the terminal device through at least one NR cell, and the at least one NR cell is called a secondary cell group (SCG).

[0068] The core network is the fifth generation core network (5GC), that is, the dual connection of the core network in the 5G communication system can also be called the new air interface and evolved universal terrestrial radio access dual connection (NR E-UTRA dual connectivity, NE-DC) mode. For example, Figure 2b As shown, the core network is 5GC, the LTE base station is the main network device, and the NR base station is the auxiliary network device. In this scenario, there is an Xn interface between the LTE base station and the NR base station, at least a control plane connection, and there may also be a user plane connection; there is an NG interface between the LTE base station and the 5GC, at least a control plane connection, and there may also be a user plane connection; there is an NG-U interface between the NR base station and the 5GC, that is, there is only a user plane connection. The LTE base station can provide air interface resources for the terminal device through at least one LTE cell, and the at least one LTE cell is called MCG. Correspondingly, the NR base station can also provide air interface resources for the terminal through at least one NR cell, and the at least one NR cell is called SCG.

[0069] like Figure 2c As shown, the core network is 5GC, the NR base station is the main network device, and the LTE base station is the auxiliary network device. In this scenario, there is an Xn interface between the NR base station and the LTE base station, at least a control plane connection, and there may also be a user plane connection; there is an NG interface between the NR base station and the 5GC, at least a control plane connection, and there may also be a user plane connection; there is an NG-U interface between the NR base station and the 5GC, that is, there is only a user plane connection. At this time, the NR base station can provide air interface resources for the terminal device through at least one NR cell, and the at least one NR cell is called MCG. Correspondingly, the LTE base station can also provide air interface resources for the terminal device through at least one LTE cell, and the at least one LTE cell is called SCG.

[0070] like Figure 2d As shown, when the core network is 5GC, both the main network device and the auxiliary network device are NR base stations. The interface between the NR main base station and the NR auxiliary base station is an Xn interface, which has at least a control plane connection and may also have a user plane connection; there is an NG interface between the NR main base station and 5GC, which has at least a control plane connection and may also have a user plane connection; there is an NG-U interface between the NR auxiliary base station and 5GC, that is, there is only a user plane connection. At this time, the NR main base station can provide air interface resources for the terminal device through at least one NR cell, and the at least one NR cell is called MCG. Correspondingly, the NR auxiliary base station can also provide air interface resources for the terminal device through at least one NR cell, and the at least one NR cell is called SCG.

[0071] It should be noted that the terms "system" and "network" in the embodiments of the present application can be used interchangeably. "Multiple" refers to two or more. In view of this, "multiple" can also be understood as "at least two" in the embodiments of the present application. "At least one" can be understood as one or more, for example, one, two or more. For example, including at least one means including one, two or more, and there is no restriction on which ones are included. For example, including at least one of A, B and C, then A, B, C, A and B, A and C, B and C, or A and B and C can be included. Similarly, the understanding of descriptions such as "at least one" is similar. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / ", unless otherwise specified, generally indicates that the associated objects before and after are in an "or" relationship.

[0072] Unless otherwise specified, the embodiments of the present application mention ordinal numbers such as "first" and "second" for distinguishing between multiple objects, and are not used to limit the order, timing, priority or importance of multiple objects, and the descriptions of "first" and "second" do not limit the objects to be different.

[0073] Please refer to Figure 3 , is a flow chart of a communication method provided in an embodiment of the present application, the method comprising:

[0074] Step S301: A first network element sends N groups of QoS feature information (QoS profiles) corresponding to a first QoS flow to a second network element, where N is an integer greater than or equal to 1.

[0075] Optionally, the first network element may also send an identifier of the first QoS flow (ie, QoS flow ID) to the second network element.

[0076] In one embodiment, if Figure 4aAs shown, the terminal device can be configured with dual connections, the first network element can be the main network device accessed by the terminal device, the second network element can be the auxiliary network device accessed by the terminal device, and the third network element can be a core network device, the auxiliary network device is connected to the main network device, and the main network device further has a control plane connection with the core network device. Exemplarily, the core network device can be an access and mobility management function (AMF) entity. In this embodiment, the main network device can send the identifier of the first QoS flow and the N groups of QoS feature information corresponding to the first QoS flow to the auxiliary network device when deciding to divert the first QoS flow of the terminal device to the auxiliary network device for transmission. Optionally, the main network device can adopt a CU-DU split architecture, in which case the main network device can specifically refer to the CU in the main network device; similarly, the auxiliary network device can also adopt a CU-DU split architecture, in which case the auxiliary network device specifically refers to the CU in the auxiliary network device.

[0077] It should be noted that in Figure 4a In the illustrated implementation mode, the primary network device may, after configuring dual connections for the terminal device, execute step S301 to send N groups of QoS feature information corresponding to the first QoS flow to the secondary network device; alternatively, the primary network device may also execute the methods in steps S301 to S306 in the process of preparing to configure dual connections for the terminal device. For example, when adding a secondary network device, the primary network device may negotiate QoS feature information with the secondary network device, report a group of QoS feature information selected by the secondary network device to the core network device, and then provide the terminal device with dual connection configuration. This application is not limited to this.

[0078] In another embodiment, if Figure 4b As shown, the terminal device can be configured with dual connections, and the auxiliary network device accessed by the terminal device adopts a CU-DU split architecture, the first network element can be the CU in the auxiliary network device accessed by the terminal device, and the second network element can be the DU in the auxiliary network device accessed by the terminal device, the auxiliary network device is connected to the main network device, and the main network device is further connected to the core network device. Exemplarily, the core network device can be an AMF. In this embodiment, when the main network device decides to divert the first QoS flow of the terminal device to the auxiliary network device for transmission, the CU in the auxiliary network device can receive the identifier of the first QoS flow and N groups of QoS feature information corresponding to the first QoS flow from the main network device, and then send the identifier of the first QoS flow and N groups of QoS feature information corresponding to the first QoS flow to the DU in the auxiliary network device.

[0079] In yet another embodiment, Figure 4cAs shown, the network device to which the terminal device accesses adopts a CU-DU separation architecture, the first network element may be a CU in the network device to which the terminal device accesses, the second network element may be a DU in the network device to which the terminal device accesses, and the third network element may be a core network device, which is connected to the core network device, and exemplarily, the core network device may be an AMF. In this embodiment, the CU in the network device to which the terminal device accesses may receive an identifier of the first QoS flow and N groups of QoS feature information corresponding to the first QoS flow from the core network device, and then send the identifier of the first QoS flow and the N groups of QoS feature information corresponding to the first QoS flow to the DU in the network device.

[0080] In an embodiment of the present application, a set of QoS feature information corresponding to the QoS flow may include the values ​​of one or more of the following QoS parameters: uplink maximum flow bit rate (maximum flow bit rate, MFBR), downlink MFBR, uplink guaranteed flow bit rate (guaranteed flow bit rate, GFBR), downlink GFBR, uplink maximum packet loss rate (maximum packet loss rate, MPLR), downlink MPLR, packet delay budget (packet delay budget, PDB), packet error rate (packet error rate, PER), fifth generation QoS indication (5G QoS identifier, 5QI), maximum data burst volume (maximum data burst volume, MDBV), QoS flow priority. Of course, a set of QoS feature information may also include the values ​​of other QoS parameters, which are not listed one by one in this application. It should be noted that a set of QoS feature information corresponding to a QoS flow may also be referred to as a set / set of QoS parameters or QoS profile corresponding to the QoS flow, or may have other names, which are not limited by this application.

[0081] For example, a set of QoS characteristic information may include an upstream MFBR, a downstream MFBR, an upstream GFBR and a downstream GFBR, wherein the maximum values ​​of the upstream MFBR, the downstream MFBR, the upstream GFBR and the downstream GFBR are all 4 Gbps.

[0082] Step S302: The second network element receives N groups of QoS feature information corresponding to the first QoS flow from the first network element.

[0083] Step S303: The second network element selects a group of QoS feature information for the first QoS flow from the N groups of QoS feature information.

[0084] Step S304: The second network element sends first indication information to the first network element, where the first indication information is used to indicate the group of QoS feature information selected by the second network element for the first QoS flow, where the group of QoS feature information is one of the N groups of QoS feature information.

[0085] In an embodiment of the present application, the second network element may select a group of QoS feature information that can meet the highest QoS requirement from the N groups of QoS feature information according to the QoS that it can meet, and then inform the first network element of the selected group of QoS feature information through the first indication information. The first indication information may be an index of the selected group of QoS feature information in the N groups of QoS feature information, or may be a specific value of each QoS parameter included in the group of QoS feature information, which is not limited by the present application.

[0086] It should be noted that in Figure 4b and Figure 4c In the illustrated embodiment, since the second network element adopts a CU-DU separated architecture, in the specific process of selecting QoS feature information, the CU may perform the judgment on the QoS parameters included in the QoS feature information, or the DU may perform the judgment on the QoS parameters in the QoS feature information, or the CU may perform the judgment on part of the QoS parameters and the DU may perform the judgment on another part of the QoS parameters, which is not limited in the present application.

[0087] Step S305: The first network element receives first indication information from the second network element.

[0088] Optionally, the first network element may also receive an identifier of the first QoS flow and M groups of QoS feature information corresponding to the first QoS flow from a third network element, and then determine the N groups of QoS feature information based on the received M groups of QoS feature information. The N groups of QoS feature information may be a subset of the M groups of QoS feature information. For example, the first network element may receive auxiliary information from the second network element for indicating the QoS that the second network element can meet, and then determine the N groups of QoS feature information from the M groups of QoS feature information based on the received auxiliary information, wherein the N groups of QoS feature information are part or all of the M groups of QoS feature information, or in other words, one or more groups of QoS feature information sent by the first network element to the second network element may be the same as or different from one or more groups of QoS feature information received by the first network element from the third network element. The auxiliary information may include specific values ​​of each QoS parameter in a group of QoS feature information, indicating the QoS that the second network element can guarantee.

[0089] That is to say, the first network element can directly forward the M groups of QoS feature information corresponding to the first QoS flow received from the third network element as the N groups of QoS feature information to the second network element, and N is equal to M at this time; the first network element can also filter the M groups of QoS feature information corresponding to the first QoS flow received from the third network element, and send some groups of QoS feature information (that is, the N groups of QoS feature information) to the second network element, and N is less than M at this time.

[0090] Optionally, on this basis, after the first network element determines N groups of QoS feature information from the M groups of QoS feature information, it can further modify the values ​​of one or more QoS parameters in one or more groups of QoS feature information in the N groups of QoS feature information to obtain the final N groups of QoS feature information.

[0091] For example, assuming that the first network element is a primary network device accessed by a terminal device, the second network element is a secondary network device accessed by the terminal device, and the third network element is a core network device, the primary network device may receive an identifier of a first QoS flow and M groups of QoS feature information corresponding to the first QoS flow from the core network device. If the primary network device decides to configure the first QoS flow as a bearer anchored on the secondary network device, the primary network device may send the M groups of QoS feature information received from the core network device to the secondary network device, and the secondary network device selects a group of QoS feature information applied to the first QoS flow, and carries the index of the selected group of QoS feature information in the first indication information and sends it to the primary network device.

[0092] If the primary network device decides to configure the first QoS flow as a bearer anchored on the primary network device, the primary network device may determine N groups of QoS feature information from the received M groups of QoS feature information, and then send the N groups of QoS feature information to the secondary network device, which selects a group of QoS feature information to be applied to the first QoS flow, and carries the index of the selected group of QoS feature information in the first indication information and sends it to the primary network device. The N groups of QoS feature information may be different from the M groups of QoS feature information, and the difference may refer to the number of N groups being different from that of M groups or the value of a specific QoS parameter in any one or more groups of the N groups of QoS feature information being different from the value of a specific QoS parameter in one or more groups of the M groups of QoS feature information. For example, the main network device may remove several groups of QoS feature information from the M groups of QoS feature information, and then send the remaining N groups of QoS feature information to the auxiliary network device, or the main network device may further modify the specific values ​​of one or more QoS parameters in one or more groups of QoS feature information in the remaining N groups of QoS feature information to obtain the final N groups of QoS feature information, where N is an integer less than M; alternatively, the main network device may directly modify the specific values ​​of one or more QoS parameters in one or more groups of QoS feature information in the M groups of QoS feature information to obtain the final M groups of QoS feature information, where N is equal to M, and the M groups of QoS feature information are the N groups of QoS feature information.

[0093] Step S306: The first network element sends second indication information to the third network element, where the second indication information is used to indicate the group of QoS feature information selected for the first QoS flow.

[0094] In an embodiment of the present application, the second indication information may be the index of the selected group of QoS feature information in the M groups of QoS feature information, or may be the specific values ​​of each QoS parameter included in the group of QoS feature information, which is not limited by the present application.

[0095] It should be noted that in the embodiment of the present application, if the first indication information and the second indication information both use indexes, then the values ​​of the first indication information and the second indication information may be the same or different, but the indicated set of QoS feature information is the same. That is, the first indication information and the second indication information are used to indicate the same set of QoS feature information, but the index of the set of QoS feature information in the N sets of QoS feature information sent by the first network element to the second network element and the index of the set of QoS feature information in the M sets of QoS feature information received by the first network element from the third network element may be the same or different. This may be because the number of the N sets of QoS feature information sent by the first network element to the third network element is different from the number of the M sets of QoS feature information received by the first network element from the third network element, that is, N is less than M. Even if N is equal to M, the first network element sends the M sets of QoS feature information received from the third network element to the second network element without deletion. Then, when the first network element sends the M sets of QoS feature information, it is possible to change the arrangement order between the M sets of QoS feature information, thereby causing the index of the same set of QoS feature information to change.

[0096] Figure 5a and Figure 5b Two specific examples of a communication method provided in the embodiments of the present application. Figure 5a As shown, the terminal device has been configured with dual connections, the first network element is the main network device to which the terminal device accesses, the second network element is the auxiliary network device to which the terminal device accesses, and the third network element is AMF. In step S501, AMF may send the identifier of the first QoS flow (e.g., QFI) and the selected multiple groups of QoS feature information to the main network device. Optionally, since there may be multiple protocol data unit (PDU) sessions, and the identifiers of QoS flows in different PDU sessions may be the same, in step S501, AMF may also send the identifier of the PDU session in which the first QoS flow is located to the main network device. In step S502, the main network device may send the identifier of the first QoS flow received from AMF and the multiple groups of QoS feature information for selection to the auxiliary network device. In step S503, the auxiliary network device may send the identifier of the first QoS flow and a set of reference QoS feature information selected from the multiple groups of QoS feature information for selection according to the quality of service that the auxiliary network device itself can meet to the main network device. In step S503, the primary network device may send the identifier of the first QoS flow and a selected set of reference QoS feature information to the AMF.

[0097] like Figure 5bAs shown, two possible application scenarios may be included, one of which is: the terminal device is not configured with dual connection, the first network element is the CU of the network device accessed by the terminal device, the second network element is the DU of the network device accessed by the terminal device, and the third network element is the AMF, or the terminal is configured with dual connection, and the network device specifically refers to the main network device accessed by the terminal device. The first application scenario is: the terminal device is configured with dual connection, the first network element is the CU of the auxiliary network device accessed by the terminal device, the second network element is the DU in the auxiliary network device accessed by the terminal device, and the third network element is the main network device accessed by the terminal device; Figure 5b The process shown in Figure 5a The same is true in the above description, so no further description is given here.

[0098] Optionally, in a possible implementation, the first network element may receive auxiliary information from the second network element, the auxiliary information being used to indicate the QoS that the second network element can meet, and optionally, the auxiliary information being used to indicate the QoS with the highest requirement that the second network element can meet. In this way, after the first network element receives M groups of QoS feature information corresponding to the first QoS flow from the third network element, it may select a group of QoS feature information with the highest QoS requirement that the second network element can meet based on the auxiliary information, and then send the group of QoS feature information to the second network element. Furthermore, after receiving confirmation information (e.g., ACK) for the group of QoS feature information from the second network element, the first network element may send second indication information to the third network element, the second indication information being used to indicate the selected group of QoS feature information.

[0099] It can be seen that in the embodiment of the present application, the two nodes on the access side can be the main network device and the auxiliary network device to which the terminal device accesses. If the main network device decides to divert the first QoS flow to the auxiliary network device for transmission, the main network device can send multiple groups of QoS feature information corresponding to the first QoS flow to the auxiliary network device, and the auxiliary network device selects the QoS feature information to be applied for the first QoS flow, and then indicates the selected group of QoS feature information to the main network device. In this way, by adopting this technical solution, the auxiliary network device can participate in the selection of QoS feature information, thereby ensuring that the QoS parameters of the first QoS flow diverted to the auxiliary network device can match the QoS that the auxiliary network device can meet, effectively ensuring the service quality of the business and improving the user's business experience.

[0100] Similarly, the two nodes on the access side can be the CU and DU in the network device to which the terminal device accesses. Since the QoS flow of the service is usually carried on the DU for transmission, multiple groups of QoS feature information corresponding to the QoS flow are sent to the DU through the CU, and the DU selects a suitable group of QoS feature information from them and feeds it back to the CU, so that the finally selected QoS feature information can match the service quality that the DU can guarantee, thereby effectively guaranteeing the service quality of the service and improving the user's service experience.

[0101] Optionally, in a possible implementation, the selection of some QoS parameters in the QoS feature information may be completed by the CU, and the selection of the remaining QoS parameters may be completed by the DU. At this time, the QoS feature information sent by the CU to the DU may be different from the QoS feature information received by the CU from the core network or the main network device. Specifically, the QoS parameters included in the QoS feature information sent by the CU to the DU may be part of the QoS parameters included in the QoS feature information received by the CU.

[0102] Please refer to Figure 6 , is a flow chart of another communication method provided in an embodiment of the present application, the method comprising:

[0103] Step S601: The primary network device sends first indication information to the secondary network device, where the first indication information is used to instruct the secondary network device to enable a high speed mode of the terminal device.

[0104] The primary network device may also be referred to as a primary node, for example, a primary base station; the secondary network device may also be referred to as a secondary node, for example, a secondary base station.

[0105] The embodiments of the present application can be applied to scenarios where the terminal device is in a high-speed mobile state, such as high-speed railways, highways, etc. In this scenario, the network device (such as the main network device or the auxiliary network device) can turn on the high-speed mode for the connected terminal device. For example, the network device can determine whether the terminal device is in high-speed movement or whether it is a high-speed user through a preset algorithm, and then decide whether to turn on the high-speed mode for the terminal device. As an example, the network device can detect the moving speed of the terminal device, and determine the terminal device whose detected moving speed exceeds a certain set threshold as a high-speed user, and then turn on the high-speed mode for the terminal device. The high-speed mode means that the network device can provide a dedicated physical layer configuration for the terminal device, which can also be called a high-speed configuration. The high-speed configuration is used to instruct the terminal device to work according to the enhanced radio resource management (radio resource management, RRM) requirements in the high-speed mode, and / or instruct the terminal device to work according to the demodulation performance requirements in the high-speed mode. The high-speed configuration can also be called a high-speed enhanced configuration.

[0106] On the basis of enabling the high-speed mode for the terminal device, the network device may also decide to configure dual connections for the connected terminal device. It should be noted that the sequence of enabling the high-speed mode for the terminal device and configuring the dual connections for the terminal device is not limited in the embodiment of the present application.

[0107] In the specific implementation of step S601, after deciding to turn on the high-speed mode of the terminal device, the primary network device may send the first indication information to the secondary network device to instruct the secondary network device to also turn on the high-speed mode of the terminal device, so that the high-speed mode can be synchronized between the primary network device and the secondary network device, that is, the consistency of turning on the high-speed mode can be maintained. In view of this, the first indication information can also be understood as being used to instruct the primary network device to decide to turn on the high-speed mode of the terminal device.

[0108] It should be noted that after the main network device decides to turn on the high-speed mode of the terminal device, the main network device can immediately turn on the high-speed mode of the terminal device, such as sending the high-speed configuration generated by the main network device to the terminal device so that the terminal device can apply these high-speed configurations as soon as possible; or, the main network device can also determine a start time by negotiating with the auxiliary network device, and then turn on the high-speed mode of the terminal device at the same time at the start time, for example, sending the high-speed configuration generated by itself and the high-speed configuration generated by the auxiliary network device to the terminal device together, which is not limited in the present application.

[0109] Step S602: The secondary network device receives first indication information from the primary network device.

[0110] Step S603: The auxiliary network device generates a high-speed configuration for the terminal device according to the first indication information.

[0111] Step S604: The auxiliary network device sends the high-speed configuration to the primary network device.

[0112] Specifically, if the auxiliary network device adopts a CU-DU separation architecture, in the specific embodiment of steps S602 to S604, the CU in the auxiliary network device may receive the first indication information from the main network device, and then send the first indication information to the DU in the auxiliary network device. Furthermore, the DU in the auxiliary network device may generate a high-speed configuration for the terminal device according to the first indication information, and then send the generated high-speed configuration to the CU in the auxiliary network device, and the CU then sends the high-speed configuration to the main network device.

[0113] Step S605: The primary network device receives, from the secondary network device, a high-speed configuration generated by the secondary network device for the terminal device.

[0114] In one implementation, the first indication information may be included in the secondary station adding request message, and the high-speed configuration generated by the secondary network device may be included in the secondary station adding request confirmation message. That is, the primary network device may execute the above method during the process of configuring dual connection for the terminal device to synchronize the high-speed mode between the primary network device and the secondary network device. Figure 7 As shown, in step S701, if the primary network device decides to configure dual connections for the terminal device, the primary network device may send a secondary station addition request message to the secondary network device, and the secondary station addition request message includes the first indication information. After receiving the first indication information, the secondary network device may decide to turn on the high-speed mode of the terminal device and generate a corresponding high-speed configuration for the terminal device, and then send a secondary station addition request confirmation message to the primary network device in step S702, and the secondary station addition request confirmation message includes the high-speed configuration generated by the secondary network device.

[0115] In another implementation, the first indication information may be included in the secondary station modification request message, and the high-speed configuration generated by the secondary network device may be included in the secondary station modification request message. That is, the primary network device may also perform the above method in the process of modifying the dual connection configuration to synchronize the high-speed mode between the primary network device and the secondary network device. Figure 8 As shown, in step S801, if the primary network device decides to modify the dual connection configuration of the terminal device, the primary network device may send a secondary station modification request message to the secondary network device, and the secondary station modification request message includes the first indication information. After receiving the first indication information, the secondary network device may decide to turn on the high-speed mode of the terminal device and generate a corresponding high-speed configuration for the terminal device, and then send a secondary station modification request confirmation message to the primary network device in step S802, and the secondary station modification request confirmation message includes the high-speed configuration generated by the secondary network device.

[0116] After step S605, Figure 7 Steps S703 to S705 in Figure 8 As shown in steps S803 to S805 in , the primary network device may also send an RRC reconfiguration message to the terminal device, and the RRC reconfiguration message includes the high-speed configuration generated by the secondary network device. After completing the high-speed configuration, the terminal device may send an RRC reconfiguration completion message to the primary network device, and the RRC reconfiguration completion message is used to indicate that the terminal device has completed the high-speed configuration provided by the secondary network device. Furthermore, the primary network device may also send the received RRC reconfiguration completion message to the secondary network device.

[0117] Optionally, in an embodiment of the present application, the main network device determines that the high-speed mode of the terminal device is to be turned off, and sends a second indication message to the auxiliary network device, where the second indication message is used to instruct the auxiliary network device to turn off the high-speed mode of the terminal device, or it can also be understood that the second indication message is used to notify the auxiliary network device that the main network device decides to turn off the high-speed mode of the terminal device. The main network device can also generate a release configuration for the high-speed mode for the terminal device. Similarly, after the auxiliary network device receives the second indication message, it can also generate a release configuration for the high-speed mode for the terminal device, and then send the release configuration to the main network device. In this way, the main network device can send the release configuration of the high-speed mode generated by itself and the release configuration of the high-speed mode generated by the auxiliary network device to the terminal device, so that the main network device and the auxiliary network device are also consistent in whether to turn off the high-speed mode.

[0118] Optionally, in an embodiment of the present application, the auxiliary network device may also determine to turn off the high-speed mode of the terminal device, and send a third indication message to the main network device, the third indication message is used to instruct the main network device to turn off the high-speed mode of the terminal device, or it can also be understood that the third indication message is used to notify the main network device: the auxiliary network device decides to turn off the high-speed mode of the terminal device. The auxiliary network device can also generate a release configuration of the high-speed mode for the terminal device and send it to the main network device, for example, it can be sent to the main network device together with the above-mentioned third indication message, so that after the main network device receives the third indication message, it can also generate a release configuration of the high-speed mode for the terminal device, and then send the release configuration of the high-speed mode generated by itself and the release configuration of the high-speed mode generated by the auxiliary network device to the terminal device, so that the main network device and the auxiliary network device are also consistent in whether to turn off the high-speed mode.

[0119] By adopting the above technical solution, the main network device and the auxiliary network device to which the terminal device accesses can maintain consistency in opening and closing the high-speed mode, thereby effectively enhancing the stability and reliability of the terminal device's business transmission and improving the business experience.

[0120] Optionally, the primary network device may receive fourth indication information from the terminal device or the core network device, and the fourth indication information is used to indicate that the terminal device supports the high-speed mode in the dual-connection scenario. The fourth indication information can also be understood as the capability information of the terminal device, which is used to indicate whether the terminal device has the capability to support the high-speed enhanced configuration in the dual-connection scenario.

[0121] Optionally, in a possible implementation, the high-speed mode can also be triggered by the auxiliary network device, that is, the auxiliary network device can also detect that the terminal device is in a high-speed moving state, decide to turn on the high-speed mode of the terminal device, and then send the indication information for instructing to turn on the high-speed mode of the terminal device to the main network device, as well as the high-speed configuration generated for the terminal device. For example, the auxiliary network device can actively send an auxiliary station modification request message to the main network device, and the auxiliary station modification request message carries the indication information for instructing to turn on the high-speed mode of the terminal device, as well as the high-speed configuration generated by the auxiliary network device. The specific implementation of the indication information is similar to the first indication information, and will not be repeated here.

[0122] Similarly, in the scenario where the auxiliary network device triggers the high-speed mode to be turned on, the main network device may determine to turn off the high-speed mode of the terminal device, and send the second indication information to the auxiliary network device to instruct the auxiliary network device to turn off the high-speed mode of the terminal device. Alternatively, the auxiliary network device may determine to turn off the high-speed mode of the terminal device, and send the third indication information to the main network device to instruct the main network device to turn off the high-speed mode of the terminal device.

[0123] It can be seen from this that in the embodiment of the present application, the two operations of triggering the turning on of the high-speed mode of the terminal device and triggering the turning off of the high-speed mode of the terminal device can be independent of each other. The turning on or off of the high-speed mode can be initiated by the main network device or by the auxiliary network device.

[0124] Specifically, in the scenario where the high-speed mode is turned on by the primary network device, the high-speed mode can be turned off by the primary network device, or by the secondary network device. In the scenario where the high-speed mode is turned on by the secondary network device, the high-speed mode can be turned off by the primary network device, or by the secondary network device.

[0125] The present application also provides a communication device, please refer to Fig. 9 , is a schematic diagram of the structure of a communication device provided in an embodiment of the present application, the communication device 900 includes: a transceiver module 910 and a processing module 920. The communication device can be used to implement the functions of the network device involved in any of the above method embodiments. For example, the communication device can be a network device, or a chip included in the network device.

[0126] The communication device can serve as a first network element or a second network element to execute Figure 3The method embodiment shown in . Wherein, the first network element may be a main network device accessed by a terminal device, and correspondingly, the second network element may be an auxiliary network device accessed by the terminal device, and the third network element may be a core network device. Alternatively, the first network element may be a central unit CU in an auxiliary network device accessed by the terminal device, and correspondingly, the second network element may be a distributed unit DU in an auxiliary network device accessed by the terminal device, and the third network element may be a main network device accessed by the terminal device. Alternatively, the first network element may be a CU in a network device accessed by the terminal device, and correspondingly, the second network element may be a DU in a network device accessed by the terminal device, and the third network element may be a core network device.

[0127] Exemplarily, when the communication device acts as a first network element, executing Figure 3 In the method embodiment shown in , the transceiver module 910 is used to send N groups of QoS feature information corresponding to the first QoS flow to the second network element, where N is an integer greater than or equal to 1; and receive first indication information from the second network element, the first indication information being used to indicate a group of QoS feature information selected by the second network element for the first QoS flow, the group of QoS feature information selected for the first QoS flow being one of the N groups of QoS feature information; the processing module 920 is used to send second indication information to the third network element through the transceiver module 910, the second indication information being used to indicate a group of QoS feature information selected for the first QoS flow.

[0128] In one possible design, the transceiver module 910 is also used to receive M groups of QoS feature information corresponding to the first QoS flow from a third network element; the processing module 920 is also used to determine the N groups of QoS feature information based on the M groups of QoS feature information, where M is an integer greater than or equal to N.

[0129] In one possible design, the transceiver module 910 is also used to receive auxiliary information from the second network element, where the auxiliary information is used to indicate the quality of service QoS that can be met by the second network element; the processing module 920 is also used to determine the N groups of QoS feature information from the M groups of QoS feature information based on the auxiliary information.

[0130] In one possible design, the processing module 920 is further used to modify the values ​​of one or more QoS parameters in one or more groups of QoS feature information among the N groups of QoS feature information.

[0131] When the communication device acts as a second network element, executing Figure 3In the method embodiment shown in , the transceiver module 910 is used to receive N groups of QoS feature information corresponding to the first QoS flow from the first network element, where N is an integer greater than or equal to 1; the processing module 920 is used to select a group of QoS feature information for the first QoS flow from the N groups of QoS feature information; the transceiver module 910 is used to send first indication information to the first network element, and the first indication information is used to indicate a group of QoS feature information selected by the second network element for the first QoS flow.

[0132] In one possible design, the transceiver module 910 is also used to send auxiliary information to the first network element, where the auxiliary information is used to indicate the quality of service QoS that can be met by the second network element.

[0133] The communication device can also be used as a main network device or a secondary network device to perform Figure 6 In the method embodiment shown in , the main network device may be the main network device accessed when the terminal device is in dual connection, and the auxiliary network device may be the auxiliary network device accessed when the terminal device is in dual connection.

[0134] Exemplarily, when the communication device acts as a master network device, executing Figure 6 In the method embodiment shown in , the transceiver module 910 is used to send a first indication message to the auxiliary network device, and the first indication message is used to instruct the auxiliary network device to turn on the high-speed mode of the terminal device; the processing module 920 is used to receive the high-speed configuration generated by the auxiliary network device for the terminal device from the auxiliary network device through the transceiver module 910.

[0135] In one possible design, the first indication information is included in a secondary station add request message, and the high-speed configuration is included in a secondary station add request confirmation message; or, the first indication information is included in a secondary station modify request message, and the high-speed configuration is included in a secondary station modify request confirmation message.

[0136] In one possible design, the transceiver module is used to send an RRC reconfiguration message to a terminal device, wherein the RRC reconfiguration message includes the high-speed configuration; and receive an RRC reconfiguration completion message from the terminal device, and send the RRC reconfiguration completion message to a secondary network device, wherein the RRC reconfiguration completion message is used to indicate that the terminal device has completed the high-speed configuration.

[0137] In one possible design, the processing module 920 is used to turn off the high-speed mode of the terminal device; the transceiver module 910 is used to send a second indication message to the auxiliary network device, and the second indication message is used to instruct the auxiliary network device to turn off the high-speed mode of the terminal device.

[0138] In one possible design, the transceiver module 910 is used to receive a third indication information from a secondary network device, and the third indication information is used to instruct the primary network device to turn off the high-speed mode of the terminal device; the processing module 920 is used to turn off the high-speed mode of the terminal device according to the third indication information.

[0139] In one possible design, the transceiver module 910 is also used to receive fourth indication information from the terminal device or the core network device, where the fourth indication information is used to indicate that the terminal device supports the high-speed mode in the dual connection scenario.

[0140] When the communication device is used as a secondary network device, execution Figure 6 In the method embodiment shown in , the transceiver module 910 is used to receive first indication information from the main network device, and the first indication information is used to instruct the auxiliary network device to turn on the high-speed mode of the terminal device; the processing module 920 is used to generate a high-speed configuration for the terminal device according to the first indication information; the transceiver module 910 is also used to send the high-speed configuration to the main network device.

[0141] In one possible design, the first indication information is included in a secondary station add request message, and the high-speed configuration is included in a secondary station add request confirmation message; or, the first indication information is included in a secondary station modify request message, and the high-speed configuration is included in a secondary station modify request confirmation message.

[0142] In one possible design, the transceiver module 910 is also used to receive an RRC reconfiguration completion message from the main network device, where the RRC reconfiguration completion message is used to indicate that the terminal device has completed the high-speed configuration.

[0143] In one possible design, the transceiver module 910 is also used to receive a second indication information from the main network device, and the second indication information is used to instruct the auxiliary network device to turn off the high-speed mode of the terminal device; the processing module 920 is also used to turn off the high-speed mode of the terminal device according to the second indication information.

[0144] In one possible design, the processing module 920 is also used to turn off the high-speed mode of the terminal device; the transceiver module 910 is also used to send a third indication message to the main network device, and the third indication message is used to instruct the main network device to turn off the high-speed mode of the terminal device.

[0145] It should be understood that the processing module 920 involved in the communication device can be implemented by a processor or a processor-related circuit component, and the transceiver module 910 can be implemented by a transceiver or a transceiver-related circuit component. The operations and / or functions of each module in the communication device are respectively to achieve, for example, Figure 3 , Figure 5a , Figure 5b , Figure 6 , Figure 7 or Figure 8 For the sake of brevity, the corresponding process of the method shown in is not repeated here.

[0146] Please refer to Fig.10 , is another structural diagram of a communication device provided in an embodiment of the present application. The communication device may be specifically a network device, such as a base station, used to implement the functions of the network device involved in any of the above method embodiments, and the network device may be Figure 3 , Figure 5a , Figure 5b The first network element or the second network element in the method embodiment shown in , or it may also be Figure 6 , Figure 7 , Figure 8 The master network device or the slave network device in the method embodiment shown in FIG.

[0147] The network device includes: one or more radio frequency units, such as a remote radio unit (RRU) 1001 and one or more baseband units (BBU) (also called digital unit, digital unit, DU) 1002. The RRU 1001 can be called a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 10011 and a radio frequency unit 10012. The RRU 1001 part is mainly used for the transmission and reception of radio frequency signals and the conversion of radio frequency signals and baseband signals. The BBU 1002 part is mainly used for baseband processing, controlling the base station, etc. The RRU 1001 and the BBU 1002 can be physically set together or physically separated, that is, a distributed base station.

[0148] The BBU 1002 is the control center of the base station, which can also be called a processing unit, and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, spread spectrum, etc. For example, the BBU (processing unit) 1002 can be used to control the base station to execute the operation process of the network device in the above method embodiment.

[0149] In one example, the BBU 1002 may be composed of one or more boards, and the multiple boards may jointly support a wireless access network with a single access indication (such as an LTE network), or may respectively support wireless access networks with different access standards (such as an LTE network, a 5G network, or other networks). The BBU 1002 may also include a memory 10021 and a processor 10022, and the memory 10021 is used to store necessary instructions and data. The processor 10022 is used to control the base station to perform necessary actions, such as controlling the base station to perform the sending operation in the above method embodiment. For example, when the base station is Figure 3When the first network element in the method embodiment shown in , the processor can be used to control the base station to execute sending operations such as sending N groups of QoS feature information corresponding to the first QoS flow to the second network element, and sending second indication information to the third network element. The memory 10021 and the processor 10022 can serve one or more single boards. In other words, the memory and processor can be set separately on each single board. It is also possible that multiple single boards share the same memory and processor. In addition, necessary circuits can be set on each single board.

[0150] An embodiment of the present application also provides a chip system, including: a processor, the processor is coupled to a memory, the memory is used to store programs or instructions, when the program or instructions are executed by the processor, the chip system implements the method in any of the above method embodiments.

[0151] Optionally, the processor in the chip system may be one or more. The processor may be implemented by hardware or by software. When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc. When implemented by software, the processor may be a general-purpose processor implemented by reading software code stored in a memory.

[0152] Optionally, the memory in the chip system may be one or more. The memory may be integrated with the processor or may be separately provided with the processor, which is not limited in the present application. Exemplarily, the memory may be a non-transient processor, such as a read-only memory ROM, which may be integrated with the processor on the same chip or may be provided on different chips. The present application does not specifically limit the type of memory and the arrangement of the memory and the processor.

[0153] Exemplarily, the chip system can be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), a central processor unit (CPU), a network processor (NP), a digital signal processor (DSP), a microcontroller unit (MCU), a programmable logic device (PLD) or other integrated chips.

[0154] It should be understood that each step in the above method embodiment can be completed by a logic circuit in a processor or an instruction in software form. The method steps disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware processor, or by a combination of hardware and software modules in a processor.

[0155] An embodiment of the present application further provides a computer-readable storage medium, in which computer-readable instructions are stored. When a computer reads and executes the computer-readable instructions, the computer executes a method in any of the above method embodiments.

[0156] The embodiment of the present application also provides a computer program product. When a computer reads and executes the computer program product, the computer executes the method in any of the above method embodiments.

[0157] The embodiment of the present application further provides a communication system, the communication system comprising a first network element and a second network element. Optionally, the communication system may further comprise at least one terminal device. Optionally, the communication system may further comprise a third network element.

[0158] Among them, the first network element can be the main network device accessed by the terminal device, and correspondingly, the second network element is the auxiliary network device accessed by the terminal device, and the third network element can be the core network device; or, the first network element can be the central unit CU in the auxiliary network device accessed by the terminal device, and correspondingly, the second network element can be the distributed unit DU in the auxiliary network device accessed by the terminal device, and the third network element can be the main network device accessed by the terminal device; or, the first network element can be the CU in the network device accessed by the terminal device, and correspondingly, the second network element can be the DU in the network device accessed by the terminal device, and the third network element can be the core network device. The first network element, the second network element and the third network element can cooperate with each other to perform Figure 3 , Figure 5a , Figure 5b For details of the method embodiment shown in , please refer to the description of the method embodiment above, which will not be repeated here.

[0159] The embodiment of the present application also provides a communication system, which includes a primary network device and a secondary network device. Optionally, the communication system may also include at least one terminal device. Optionally, the communication system may also include a core network device. The primary network device and the secondary network device may cooperate with each other to perform Figure 6 , Figure 7 , Figure 8 For details of the method embodiment shown in , please refer to the description of the method embodiment above, which will not be repeated here.

[0160] It should be understood that the processor mentioned in the embodiments of the present application may be a CPU, or other general-purpose processors, DSPs, ASICs, FPGAs or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0161] It should also be understood that the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM).

[0162] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, the memory (storage module) is integrated in the processor.

[0163] It should be noted that the memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0164] It should be understood that the various digital numbers involved in the various embodiments of the present application are only distinguished for the convenience of description, and the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0165] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0166] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0167] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0168] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0169] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0170] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk, or an optical disk.

[0171] In the various embodiments of the present application, unless otherwise specified or provided in a logical conflict, the terms and / or descriptions between the different embodiments are consistent and may be referenced to each other, and the technical features in the different embodiments may be combined to form new embodiments according to their inherent logical relationships.

Claims

1. A communication method, characterized in that: The method comprises: The first network element receives M groups of QoS feature information corresponding to the first quality of service QoS flow from the third network element; The first network element determines N groups of QoS feature information according to the M groups of QoS feature information, where N is an integer greater than or equal to 1, and M is an integer greater than or equal to N; The first network element sends the N groups of QoS feature information corresponding to the first QoS flow to the second network element; The first network element receives first indication information from the second network element, where the first indication information is used to indicate a group of QoS feature information selected by the second network element for the first QoS flow, where the group of QoS feature information selected for the first QoS flow is one of the N groups of QoS feature information; The first network element sends second indication information to the third network element, where the second indication information is used to indicate a group of QoS feature information selected for the first QoS flow.

2. The method according to claim 1, characterized in that The first network element is a primary network device accessed by the terminal device, the second network element is a secondary network device accessed by the terminal device, and the third network element is a core network device; Alternatively, the first network element is a central unit CU in a secondary network device accessed by the terminal device, the second network element is a distributed unit DU in a secondary network device accessed by the terminal device, and the third network element is a primary network device accessed by the terminal device; Alternatively, the first network element is a CU in a network device to which the terminal device accesses, the second network element is a DU in a network device to which the terminal device accesses, and the third network element is a core network device.

3. The method according to claim 1, characterized in that The method further comprises: The first network element receives auxiliary information from the second network element, where the auxiliary information is used to indicate a quality of service QoS that can be met by the second network element; The first network element determines the N groups of QoS feature information according to the M groups of QoS feature information, including: The first network element determines the N groups of QoS feature information from the M groups of QoS feature information according to the auxiliary information.

4. The method according to claim 3, characterized in that The method further comprises: The first network element modifies the values ​​of one or more QoS parameters in one or more groups of QoS feature information among the N groups of QoS feature information.

5. The method according to any one of claims 1 to 4, characterized in that Each set of QoS feature information includes the values ​​of one or more of the following QoS parameters: Upstream maximum flow bit rate MFBR, downstream MFBR, upstream guaranteed flow bit rate GFBR, downstream GFBR, maximum packet loss rate MPLR, packet delay budget PDB, and packet error rate PER.

6. A communication method, characterized in that: The method comprises: The second network element receives N groups of QoS feature information corresponding to the first quality of service QoS flow from the first network element, where the N groups of QoS feature information are determined according to the M groups of QoS feature information received by the first network element, the M groups of QoS feature information correspond to the first QoS flow, N is an integer greater than or equal to 1, and M is an integer greater than or equal to N; The second network element selects a group of QoS feature information for the first QoS flow from the N groups of QoS feature information; The second network element sends first indication information to the first network element, where the first indication information is used to indicate a group of QoS feature information selected by the second network element for the first QoS flow.

7. The method according to claim 6, characterized in that The first network element is a primary network device accessed by the terminal device, and the second network element is a secondary network device accessed by the terminal device; Alternatively, the first network element is a central unit CU in the auxiliary network device to which the terminal device accesses, and the second network element is a distributed unit DU in the auxiliary network device to which the terminal device accesses; Alternatively, the first network element is a CU in a network device to which the terminal device accesses, and the second network element is a DU in a network device to which the terminal device accesses.

8. The method according to claim 6, characterized in that The method further comprises: The second network element sends auxiliary information to the first network element, where the auxiliary information is used to indicate a quality of service QoS that can be met by the second network element.

9. The method according to any one of claims 6 to 8, characterized in that Each set of QoS feature information includes the values ​​of one or more of the following QoS parameters: Upstream maximum flow bit rate MFBR, downstream MFBR, upstream guaranteed flow bit rate GFBR, downstream GFBR, maximum packet loss rate MPLR, packet delay budget PDB, and packet error rate PER.

10. A communication device, characterized in that: The device includes: A transceiver module, configured to receive M groups of QoS feature information corresponding to a first quality of service QoS flow from a third network element; A processing module, configured to determine N groups of QoS feature information according to the M groups of QoS feature information, where N is an integer greater than or equal to 1, and M is an integer greater than or equal to N; The transceiver module is further used to send the N groups of QoS feature information corresponding to the first QoS flow to the second network element; The transceiver module is further used to receive first indication information from the second network element, where the first indication information is used to indicate a group of QoS feature information selected by the second network element for the first QoS flow, where the group of QoS feature information selected for the first QoS flow is one of the N groups of QoS feature information; The processing module is further used to send second indication information to the third network element through the transceiver module, where the second indication information is used to indicate a group of QoS feature information selected for the first QoS flow.

11. The device according to claim 10, characterized in that The device is a primary network device accessed by a terminal device, the second network element is an auxiliary network device accessed by the terminal device, and the third network element is a core network device; Alternatively, the device is a central unit CU in a secondary network device accessed by the terminal device, the second network element is a distributed unit DU in a secondary network device accessed by the terminal device, and the third network element is a primary network device accessed by the terminal device; Alternatively, the device is a CU in a network device to which the terminal device accesses, the second network element is a DU in a network device to which the terminal device accesses, and the third network element is a core network device.

12. The device according to claim 10, characterized in that The transceiver module is further used to receive auxiliary information from the second network element, where the auxiliary information is used to indicate the quality of service QoS that can be met by the second network element; The processing module is specifically configured to determine the N groups of QoS feature information from the M groups of QoS feature information according to the auxiliary information.

13. The device according to claim 12, characterized in that The processing module is further used to modify the values ​​of one or more QoS parameters in one or more groups of QoS feature information among the N groups of QoS feature information.

14. The device according to any one of claims 10 to 13, characterized in that Each set of QoS feature information includes the values ​​of one or more of the following QoS parameters: Upstream maximum flow bit rate MFBR, downstream MFBR, upstream guaranteed flow bit rate GFBR, downstream GFBR, maximum packet loss rate MPLR, packet delay budget PDB, and packet error rate PER.

15. A communication device, characterized in that: The device comprises: A transceiver module, configured to receive N groups of QoS feature information corresponding to a first quality of service QoS flow from a first network element, wherein the N groups of QoS feature information are determined according to M groups of QoS feature information received by the first network element, and the M groups of QoS feature information correspond to the first QoS flow, wherein N is an integer greater than or equal to 1, and M is an integer greater than or equal to N; A processing module, configured to select a set of QoS feature information for the first QoS flow from the N sets of QoS feature information; The transceiver module is further used to send first indication information to the first network element, where the first indication information is used to indicate a group of QoS feature information selected by the device for the first QoS flow.

16. The device according to claim 15, characterized in that The first network element is a primary network device accessed by the terminal device, and the device is a secondary network device accessed by the terminal device; Alternatively, the first network element is a central unit CU in a secondary network device to which the terminal device accesses, and the device is a distributed unit DU in a secondary network device to which the terminal device accesses; Alternatively, the first network element is a CU in a network device to which the terminal device is connected, and the device is a DU in a network device to which the terminal device is connected.

17. The device according to claim 15, characterized in that The transceiver module is further used to send auxiliary information to the first network element, where the auxiliary information is used to indicate the quality of service QoS that the device can meet.

18. The device according to any one of claims 15 to 17, characterized in that Each set of QoS feature information includes the values ​​of one or more of the following QoS parameters: Upstream maximum flow bit rate MFBR, downstream MFBR, upstream guaranteed flow bit rate GFBR, downstream GFBR, maximum packet loss rate MPLR, packet delay budget PDB, and packet error rate PER.

19. A communication device, characterized in that: The apparatus comprises at least one processor coupled to at least one memory: The at least one processor is configured to execute a computer program or instruction stored in the at least one memory, so that the apparatus executes the method according to any one of claims 1 to 5, or the apparatus executes the method according to any one of claims 6 to 9.

20. A computer-readable storage medium, characterized in that: Used to store instructions, when the instructions are executed, the method according to any one of claims 1 to 5 is implemented, or the method according to any one of claims 6 to 9 is implemented.

21. A communication device, characterized in that: including a processor and an interface circuit; The interface circuit is used to exchange code instructions to the processor; The processor is used to run the code instructions to execute the method according to any one of claims 1 to 5, or the processor is used to run the code instructions to execute the method according to any one of claims 6 to 9.

22. A computer program product, characterized in that When a computer reads and executes the computer program product, the computer is enabled to execute the method according to any one of claims 1 to 5, or execute the method according to any one of claims 6 to 9.

23. A communication system, characterized in that: The communication system comprises a first network element and a second network element, wherein: The first network element is used to execute the method according to any one of claims 1 to 5, and the second network element is used to execute the method according to any one of claims 6 to 9.

24. The communication system according to claim 23, further comprising a third network element, wherein the third network element is configured to: Sending M groups of QoS feature information corresponding to a first quality of service QoS flow to the first network element, where M is an integer greater than or equal to 1; Second indication information is received from the first network element, where the second indication information is used to indicate a set of QoS feature information selected for the first QoS flow.

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