WO2024104454A2

WO2024104454A2 - Communication method, computer-readable storage medium, and communication apparatus

Info

Publication number: WO2024104454A2
Application number: PCT/CN2023/132225
Authority: WO
Inventors: 韩立锋
Original assignee: 展讯通信（上海）有限公司
Priority date: 2022-11-17
Filing date: 2023-11-17
Publication date: 2024-05-23
Also published as: CN118055457A; WO2024104454A3

Abstract

A communication method, a computer-readable storage medium, and a communication apparatus. The method comprises: sending first information, wherein the first information is used for indicating a rate at which an access network device expects a core network device to send service data. The solution provided in the present application can be conducive to improving the success rate of data transmission.

Description

Communication method, computer readable storage medium and communication device

This application claims priority to the Chinese patent application filed with the China Patent Office on November 17, 2022, with application number 202211440099.8 and invention name “Communication method, computer-readable storage medium and communication device”, the entire contents of which are incorporated by reference in this application.

Technical Field

The present application relates to the field of communication technology, and in particular to a communication method, a computer-readable storage medium, and a communication device.

Background technique

With the development of wireless communication technology, the services that need to be transmitted in some application scenarios have the characteristics of large data volume and high transmission delay requirements, which brings great challenges to the network's transmission capacity and scheduling algorithms.

For example, Extended Reality (XR) technology integrates the physical environment with the virtual environment, providing users with a fully immersive virtual experience environment, and has broad application prospects in the era of the fifth-generation mobile communications technology (5G). XR technology refers to a variety of technologies such as virtual reality (VR), augmented reality (AR) and mixed reality (MR). Services transmitted based on XR technology can be called XR services. The data of XR services is usually high-definition real-time video data, which has the characteristics of large data volume and high transmission delay requirements, and has high requirements for network transmission capabilities.

Summary of the invention

One of the technical problems to be solved by this application is: how to improve the success rate of data transmission.

In a first aspect, an embodiment of the present application provides a communication method, the method comprising:

Optionally, first information is sent, where the first information is used to indicate a rate at which the access network device expects the core network device to send service data.

Optionally, the expected rate of the access network device is determined according to the storage capacity of the access network device and/or the rate at which the access network device sends the service data.

Optionally, the business data is XR business data.

Optionally, the method further includes: receiving a response to the first information.

Optionally, the response to the first information includes second information, where the second information is used to indicate a rate at which the core network device sends the service data, and the rate indicated by the second information is different from the rate indicated by the first information.

Optionally, if the response does not include the second information, the rate at which the core network device sends the service data is the rate indicated by the first information.

Optionally, the first information further carries a terminal identifier, and the rate indicated by the first information is associated with the terminal indicated by the terminal identifier.

Optionally, if the first information does not carry the terminal identifier, the rate indicated by the first information is a public rate.

Optionally, the method further includes: sending a switching request and third information, wherein the third information is used to indicate a rate at which the core network device sends the service data.

In a second aspect, an embodiment of the present application provides a communication method, the method comprising: receiving first information, the first information being used to indicate a rate at which a core network device expects an access network device to send service data.

Optionally, the business data is XR business data.

Optionally, the method further includes: sending a response to the first information.

Optionally, if the first information does not carry the terminal identifier, the rate indicated by the first information is associated with the terminal to which the access network device is connected.

Optionally, the method further includes: receiving fourth information, wherein the fourth information is used to indicate a rate expected by the target access network device, the rate indicated by the fourth information being different from a rate at which the core network device sends the service data to the source access network device.

In a third aspect, an embodiment of the present application provides a communication method, the method comprising: receiving a switching request and third information, the third information being used to indicate a rate at which a core network device sends service data.

Optionally, fourth information is sent, where the fourth information is used to indicate a rate at which the core network device expected by the target access network device to send the service data, and the rate indicated by the fourth information is different from the rate indicated by the third information.

In a fourth aspect, an embodiment of the present application further provides a communication device, comprising: a communication module, configured to send first information, wherein the first information is used to indicate a rate at which a core network device expects an access network device to send service data.

In a fifth aspect, an embodiment of the present application further provides a communication device, comprising: a communication module, configured to receive first information, wherein the first information is used to indicate a rate at which a core network device expects an access network device to send service data.

In a sixth aspect, an embodiment of the present application further provides a communication device, comprising: a communication module, configured to receive a switching request and third information, wherein the third information is configured to indicate a rate at which a core network device sends service data.

In a seventh aspect, an embodiment of the present application further provides a computer-readable storage medium, and when the computer program is executed by a computer, the communication method provided in the first aspect, the second aspect, or the third aspect is executed.

In an eighth aspect, an embodiment of the present application further provides a communication device, comprising a memory and a processor, wherein the memory stores a computer program that can be executed on the processor, and when the processor runs the computer program, the steps of the communication method provided in the first aspect are executed.

In the ninth aspect, an embodiment of the present application further provides a communication device, comprising a memory and a processor, wherein the memory stores a computer program that can be executed on the processor, and when the processor runs the computer program, the steps of the communication method provided in the second aspect are executed.

In the tenth aspect, an embodiment of the present application also provides a communication device, including a memory and a processor, wherein the memory stores a computer program that can be executed on the processor, and when the processor runs the computer program, the steps of the communication method provided in the third aspect are executed.

Compared with the prior art, the technical solution of the embodiment of the present application has the following beneficial effects:

In the solution of the embodiment of the present application, the access network device sends the first information, and the first information is used to indicate the rate at which the access network device expects the core network device to send service data. With such a solution, since the access network device actively reports the transmission rate of the service data it expects, the core network device can send the service data at a more suitable rate, which is conducive to reducing the situation where the service data transmission fails due to inappropriate rate.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a flow chart of a communication method in the prior art;

FIG2 is a flow chart of a communication method in an embodiment of the present application;

FIG3 is a flow chart of another communication method in an embodiment of the present application;

FIG4 is a schematic diagram of the structure of a first communication device in an embodiment of the present application;

FIG5 is a schematic diagram of the structure of a second communication device in an embodiment of the present application;

FIG6 is a schematic diagram of the structure of a third communication device in an embodiment of the present application;

FIG. 7 is a schematic diagram of the structure of a fourth communication device in an embodiment of the present application.

Detailed ways

It should be noted that the communication systems to which the embodiments of the present application are applicable include but are not limited to long term evolution (LTE) systems, fifth generation (5G) systems (such as new radio (NR) systems), and future evolution systems or multiple communication convergence systems. Among them, the 5G system can be a non-standalone (NSA) 5G system or a standalone (SA) 5G system. The solutions of the embodiments of the present application can also be applicable to various new communication systems in the future, such as 6G, 7G, etc.

The terminal in the embodiments of the present application may refer to various forms of user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), remote station, remote terminal, mobile device, user terminal, terminal equipment (Terminal Equipment), wireless communication equipment, user agent or user device. The terminal may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal in the future 5G network or a terminal in the future evolved Public Land Mobile Network (PLMN), etc., and the embodiments of the present application are not limited to this. In some embodiments of the present application, the terminal device may also be a device with transceiver functions, For example, a chip system may include a chip and other discrete devices.

The access network device in the embodiment of the present application is a device that provides wireless communication functions for terminals, and may also be referred to as a radio access network (RAN) device, or an access network element, etc., wherein the access network device may support at least one wireless communication technology, such as LTE, NR, etc. For example, the access network device may be a base station (BS) (also referred to as a base station device), a device that provides base station functions in a second-generation (2nd-generation, 2G) network includes a base transceiver station (BTS), a device that provides base station functions in a third-generation (3rd-generation, 3G) network includes a node B, a device that provides base station functions in a fourth-generation (4th-generation, 4G) network includes an evolved Node B (eNB), and a device that provides base station functions in a wireless local area network (WLAN) includes an evolved Node B (eNB). In 5G networks (WLAN), the device that provides base station functions is the access point (AP), the device that provides base station functions in NR is the next generation node base station (gNB), and the evolved node B (ng-eNB), wherein the gNB and the terminal device communicate using NR technology, and the ng-eNB and the terminal device communicate using Evolved Universal Terrestrial Radio Access (E-UTRA) technology, and both gNB and ng-eNB can be connected to the 5G core network. The access network device in the embodiment of the present application also includes a device that provides base station functions in a future new communication system, etc. In some embodiments, the access network device can also be a device that provides wireless communication functions for the terminal, such as a chip system. For example, the chip system may include a chip and may also include other discrete devices.

The first core network device in the embodiment of the present application can be an access and mobility management function (AMF) entity or a session management function (SMF) entity. The access network device establishes a control plane signaling connection with AMF through the control plane interface N2 to implement functions such as wireless access bearer control. AMF is mainly responsible for terminal authentication, terminal mobility management, network slice selection, SMF selection and other functions. AMF can act as SMF to provide routing of N1/N2 interface session management (SM) messages; maintenance and Manages the status information of the terminal. SMF is mainly responsible for all control plane functions of terminal session management, including user plane function (UPF) selection, Internet protocol (IP) address allocation, and session quality of service (QoS) management.

The second core network device in the embodiment of the present application may be a UPF entity. The access network device is connected to the UPF entity through the user plane interface N3 for transmitting terminal data. In other words, the UPF entity mainly completes functions such as routing and forwarding of user plane data.

It should be noted that the AMF entity, SMF entity, and UPF entity in the embodiments of the present application are just names, and the names do not limit the entities themselves. In 5G networks and other future networks, the network elements or devices corresponding to these entities may also have other names, and the embodiments of the present application do not specifically limit this.

The solution provided in the embodiment of the present application can be used in the XR scenario, that is, the solution of the embodiment of the present application can be used to transmit the data of the XR service. Among them, the data of the XR service can be video data. This article mainly takes the data of the XR service as an example to specifically describe the communication method provided in the embodiment of the present application. In actual application scenarios, the communication method provided in the embodiment of the present application can also be used for the transmission of other business data.

In the XR scenario, the XR server (XR Server) transmits XR business data to the terminal via the network and presents it.

Referring to Figure 1, Figure 1 is a flow chart of a communication method in the prior art. More specifically, Figure 1 shows a data transmission process of an XR service in the prior art.

Specifically, the data transmission of the XR service starts from the XR server. The XR server sends the XR service data to the UPF entity, and then the UPF entity sends the XR service data to the access network device. The access network device further sends the XR service data to the terminal. The terminal can be configured with an XR-related application (not shown in Figure 1), so that the XR service data can be displayed to the user on the terminal.

Currently, the 3rd Generation Partnership Project (3GPP) has determined that UPF sends XR to access network devices at a constant rate. data.

From the perspective of a single network element, the UPF entity, as the gateway of the core network, has a large enough storage capacity and strong processing capabilities. Access network equipment is usually responsible for data transmission on the wireless interface, and its storage capacity is small and not suitable for storing large amounts of data. In addition, from the perspective of the interface between network elements, the N6 interface on the UPF entity belongs to the backbone network and has a large transmission capacity.

When using the existing solution to transmit XR data, the UPF entity may send XR data to the access network device at an excessively high rate, which may easily cause the access network device to be unable to store or transmit on the wireless interface, and there is a risk of discarding data packets.

Specifically, after the access network device receives the XR service data sent by the UPF entity, it will not send it to the terminal immediately. The access network device needs to perform a series of processing on the XR service data, and then call resources to send the XR service data to the terminal after the processing is completed. Therefore, in the process of the UPF entity sending XR service data to the terminal, it needs to be temporarily or temporarily stored in the access network device. When the storage space available on the access network device is small or the transmission of the wireless interface is limited and cannot adapt to the rate at which the UPF entity sends data, the access network device may discard the data due to the inability to store it, resulting in the failure of transmission of some service data.

Similar to the XR scenario, in other business scenarios, the UPF entity also sends business data to the access network device at a constant rate. There is also a situation where the access network device may discard data because it cannot adapt to the rate at which the UPF entity sends business data, resulting in failure to transmit some business data.

In view of this, an embodiment of the present application provides a communication method. In the solution of the embodiment of the present application, the access network device sends first information, and the first information is used to indicate the rate at which the access network device expects the core network device to send service data. With such a solution, since the access network device actively reports the transmission rate of the service data it expects, the core network device can send the service data at a more suitable rate, which is conducive to reducing the situation where the service data transmission fails due to inappropriate rate.

Referring to FIG. 2, FIG. 2 is a flow chart of a communication method in an embodiment of the present application. As shown in FIG. 2, the method shown in FIG. 2 may include S21 to S24. The S in each step number stands for step.

S21, the access network device sends first information to the first core network device, wherein the first information is used to indicate the rate at which the access network device expects the core network device to send service data.

The rate indicated by the first information may include at least one of the following: uplink packet data unit (PDU) session maximum rate (Session Aggregate Maximum Bit Rate), downlink PDU session maximum rate (Session Aggregate Maximum Bit Rate), uplink guaranteed rate of Quality of Service (QoS) flow, downlink guaranteed rate of QoS flow, uplink maximum rate of QoS flow, downlink maximum rate of QoS flow. QoS flow is the minimum granularity of QoS distinction, and the data packets in a QoS flow have the same QoS requirements.

Specifically, the first information is used to indicate the rate expected by the access network device, and the expected rate is the rate at which the second core network device sends service data. More specifically, the rate indicated by the first information is the rate at which the access network device expects the second core network device to send service data to the access network device. The first core network device may refer to an AMF entity, or an SMF entity, and the second core network device may refer to a UPF entity, but is not limited thereto.

In a specific implementation, the access network device may send the first information during the service establishment process. The access network device may also send the first information after the service is established. In other words, the access network device may also send the first information during the service transmission process to update the expected rate.

Before S21, the access network device may first determine the rate expected by the access network device.

Specifically, the access network device can determine the expected rate according to the storage capacity of the access network device and/or the rate at which the access network device sends service data at the wireless interface. In other words, the access network device can determine the expected rate according to its own storage capacity and/or the rate at which it sends service data to the terminal.

In the first specific example, the first information may carry a terminal identifier, the terminal identifier may be used to indicate a terminal, and the terminal indicated by the terminal identifier may be recorded as a target terminal.

If the first information carries a terminal identifier, the first core network device may determine that the rate indicated by the first information is associated with the target terminal. The network device expects the second core network device to adopt the rate during the service transmission of the target terminal.

In a specific implementation, the access network device may send the first information during a service establishment process of the target terminal, or may send the first information during a service transmission process of the target terminal.

Furthermore, since the access network device has not yet sent service data to the target terminal during the service establishment process of the target terminal, the access network device can determine the expected rate according to the storage capacity during the service establishment process of the target terminal. During the service transmission process of the target terminal, the access network device can determine the expected rate according to the storage capacity and/or the rate at which the service data is sent to the target terminal at the wireless interface.

Specifically, the number of target terminals may be one or more, which is not limited in this embodiment.

In the second specific example, the first information may not carry the terminal identifier. If the first information does not carry the terminal identifier, the rate indicated by the first information is a common rate. In other words, the rate indicated by the first information can be applicable to any terminal accessing the access network device.

Specifically, the access network device may determine the expected rate based on the rate at which service data is sent to one or more connected terminals. That is, the access network device does not determine the expected rate based on the rate at which service data is sent to a specific terminal, and the rate indicated by the first information is not determined based on the rate at which the access network device sends service data to a specific terminal.

As an example, the access network device may determine the expected rate based on storage capacity and/or downlink throughput.

In a specific implementation, the access network device may send the above-mentioned common rate to the first core network device. Afterwards, during the service establishment process or service transmission process of a certain terminal, if the access network device sends the first information carrying the terminal identification, the first core network device may determine the rate adopted for the service transmission of the terminal based on the first information. If the access network device does not send the first information, the first core network device may determine the rate adopted for the service transmission of the terminal based on the above-mentioned common rate.

S22, the first core network device sends a response to the first information to the access network device.

S23, the first core network device sends control information to the second core network device, where the control information is used to indicate a rate to the second core network device.

It should be noted that the embodiment of the present application does not limit the execution order of S22 and S23. S22 may be executed first and then S23, or S23 may be executed first and then S22, or S22 and S23 may be executed simultaneously.

In a specific implementation of S22, in response to the first information, the first core network device may send a response to the first information to the access network device. In step S33, the first core network device may indicate the rate of sending service data to the second core network device through control information.

In a specific example, before sending a response to the first information, the first core network device may first determine whether to use the rate indicated by the first information.

Specifically, if the first core network device determines not to use the rate indicated by the first information, the first core network device may modify the rate indicated by the first information to obtain a modified rate. Furthermore, the first core network device may notify the access network device of the modified rate, and instruct the network device to send service data at the modified rate. More specifically, the response to the first information may include the modified rate, and the rate indicated by the control information is the modified rate. In this case, after the access network device receives the response to the first information, it can be learned that the second core network device will use the modified rate to send service data.

If the first core network device determines to use the rate indicated by the first information, it instructs the second core network device to send service data at the rate indicated by the first information through control information. That is, the rate indicated by the control information is the same as the rate indicated by the first information. More specifically, the first core network device sends a response to the first information to the access device, wherein the response to the first information does not include the modified rate. In this case, after the access network device receives the response to the first information, it can be learned that the second core network device will send service data at the rate indicated by the first information.

In another example, the first core network device may not judge or modify the rate indicated by the first information, and the first core network device may directly use the rate indicated by the first information. In other words, in response to the first information, the first core network device sends control information and a response to the first information, wherein the rate indicated by the control information is the same as the rate indicated by the first information.

S24, the second core network device sends service data to the access network device.

Specifically, the second core network device may send service data to the access network device at the rate indicated by the control information. That is, the second core network device executes the rate indicated by the control information.

More specifically, if the rate indicated by the control information is the rate indicated by the first information, the second core network device uses the rate expected by the access network device to send service data to the access network device. If the rate indicated by the control information is the above-mentioned modified rate, the second core network device uses the modified rate to send service data to the access network device.

S25, the access network device sends service data to the terminal.

For the process of the access network device sending service data to the terminal, reference may be made to the relevant description of the existing downlink data transmission, which will not be described in detail here.

Furthermore, the solution provided in the embodiment of the present application can be applicable to the scenario of access network device switching.

Referring to Fig. 3, Fig. 3 is a flow chart of another communication method in an embodiment of the present application. The communication method shown in Fig. 3 may include S31 to S33.

S31, the source access network device sends a switching request and third information to the target access network device.

The third information may be used to indicate the rate at which the second core network device sends service data. More specifically, the rate indicated by the third information is the rate at which the second core network device sends service data to the source access network device. In other words, the rate indicated by the third information is the rate at which the second core network device currently sends service data to the source access device.

Specifically, in the access network device switching process, the source access network device sends a switching request to the target access network device. In addition, the source access network device also sends a switching request to the target access network device. Third information.

In one example, the source access network device first sends the handover request and then sends the third information. In another example, the third information may be carried in the handover request, and the source access network device sends the third information together with the handover request. In another example, the source access network device may first send the third information and then send the handover request.

Therefore, the source access network device informs the target access network device of the current rate at which the second core network device sends service data through the third information.

Further, in response to the third information, the target access network device may send a response to the third information to the access network device. In a specific implementation, the response to the third information may be carried in a response to the handover request.

S32, the target access network device sends fourth information to the first core network device.

S33, the first core network device sends a response of the fourth information to the target access network device.

The fourth information is used to indicate the rate expected by the target access network device. That is, the fourth information is used to indicate the rate at which the second core network device expects the target access network device to send service data to the target access network device. The fourth information may carry a terminal identifier, and the terminal indicated by the terminal identifier carried by the fourth information may be the terminal that initiates the access network device switching.

In a specific implementation, before executing S32, the target access network device may first determine whether to continue to use the rate indicated by the third information. If the determination result is yes, the target access network device may not send the fourth information. That is, there is no need to execute S32 and S33, and the second core network device continues to send service data to the target access network device at the rate indicated by the third information by default.

If the target access network device determines not to use the rate indicated by the third information, the fourth information may be sent to the first core network device. More specifically, the target access network device may determine the rate expected by the target access device based on its own storage capacity and/or the rate at which service data is sent on the wireless interface. For the description of the target access network device determining the expected rate, please refer to the above description of S21, which will not be repeated here.

It should be noted that the rate indicated by the fourth information is associated with the terminal indicated by the terminal identifier carried by the fourth information.

As a specific example, in response to the switching request, the target access network device sends a path switching request to the first core network device, and in response to the path switching request, the first core network device sends a path switching response to the target access network device. If the target access network device determines to continue using the rate indicated by the third information, the path switching request may not include the fourth information; if the target access network device determines not to continue using the rate indicated by the third information, the path switching request may include the fourth information, and accordingly, the path switching response may include a response to the fourth information.

Further, if the first core network device receives the fourth information, the first core network device may directly adopt the rate indicated by the fourth information. Alternatively, the first core network device may also modify the rate indicated by the fourth information to obtain a modified rate. Further, the response to the fourth information may include the modified rate.

Further, if the first core network device does not receive the fourth information, the second core network device continues to send service data to the target access network device at the rate indicated by the third information; if the first core network device receives the fourth information and does not modify the fourth information, the second core network device sends service data to the target access network device at the rate indicated by the fourth information; if the first core network device receives the fourth information and modifies the fourth information, the second core network device sends service data to the target access network device at the modified rate.

For more information about the communication method shown in FIG. 3 , please refer to the related description of FIG. 2 , which will not be repeated here.

It can be understood that, in a specific implementation, the above method can be implemented in the form of a software program, which runs in a processor integrated inside a chip or a chip module; or, the method can be implemented in hardware or a combination of hardware and software, such as using a dedicated chip or chip module, or using a dedicated chip or chip module in combination with a software program.

It should be understood that the above embodiments can be used alone or in combination with each other to achieve different technical effects.

Referring to FIG. 4 , FIG. 4 is a schematic diagram of the structure of a first communication device in an embodiment of the present application. The communication device shown in FIG. 4 may be deployed in the above-mentioned access network device. The device shown in FIG. 4 may include: a communication module 41, wherein:

The communication module 41 is used to send first information, where the first information is used to indicate the rate at which the access network device expects the core network device to send service data.

In a specific implementation, the communication device shown in Figure 4 may correspond to a chip with communication function in an access network device; or correspond to a chip or chip module with communication function in an access network device, or correspond to an access network device.

5 , which is a schematic diagram of the structure of a second communication device in an embodiment of the present application, the communication device shown in FIG5 can be deployed in the first core network device mentioned above. The device shown in FIG5 can include: a communication module 51 .

The communication module 51 is used to receive first information, where the first information is used to indicate the rate at which the access network device expects the core network device to send service data.

In a specific implementation, the communication device shown in Figure 5 may correspond to a chip with communication function in a core network device; or correspond to a chip or chip module with communication function in a core network device, or correspond to a core network device.

Referring to FIG. 6 , FIG. 6 is a schematic diagram of the structure of a third communication device in an embodiment of the present application. The communication device shown in FIG. 6 can be deployed in the above-mentioned target access network device. The device shown in FIG. 6 may include: a communication module 61, wherein:

The communication module 61 is used to receive a switching request and third information, where the third information is used to indicate a rate at which the core network device sends service data.

In a specific implementation, the communication device shown in Figure 6 may correspond to a chip with communication function in an access network device; or correspond to a chip or chip module with communication function in an access network device, or correspond to an access network device.

For more information about the working principle, working method, beneficial effects, etc. of the communication device in the embodiment of the present application, please refer to the above description of the communication method, which will not be repeated here.

The embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the above-mentioned communication method is executed. The storage medium may include ROM, RAM, a magnetic disk or an optical disk, etc. The storage medium may also include a non-volatile memory (non-volatile) or a non-transitory memory, etc.

The embodiment of the present application also provides a fourth communication device, including a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and the processor executes the steps of the above communication method when running the computer program. The communication device can be the access network device mentioned above, or it can be the first core network device mentioned above.

Referring to FIG. 7 , FIG. 7 is a schematic diagram of the structure of the fourth communication device in the embodiment of the present application. The communication device shown in FIG. 7 includes a memory 71 and a processor 72, the processor 72 and the memory 71 are coupled, and the memory 71 can be located inside the communication device or outside the communication device. The memory 71 and the processor 72 can be connected via a communication bus. The memory 71 stores a computer program that can be run on the processor 72, and the processor 72 executes the steps in the communication method provided in the above embodiment when running the computer program.

It should be understood that in the embodiments of the present application, the processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

It should also be understood that the memory 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 The volatile memory may be a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (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 but not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic random access memory (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).

The above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination thereof. When implemented using software, the above embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer program may be stored in a computer-readable storage medium, or may be transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program may be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired or wireless means.

It should be understood that in the various embodiments of the present application, 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 application.

In the several embodiments provided in this application, it should be understood that the disclosed methods, devices and systems can be implemented in other ways. The examples are merely illustrative; for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation; for example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, which may be electrical, mechanical or other forms.

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.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of hardware plus software functional units. For example, for each device or product applied to or integrated in a chip, each module/unit contained therein may be implemented in the form of hardware such as circuits, or at least part of the modules/units may be implemented in the form of software programs, which run on a processor integrated inside the chip, and the remaining (if any) modules/units may be implemented in the form of hardware such as circuits; for each device or product applied to or integrated in a chip module, each module/unit contained therein may be implemented in the form of hardware such as circuits, and different modules/units may be located in the same component (such as a chip, circuit module, etc.) or different components of the chip module, or at least part of the modules/units may be implemented in the form of software programs. The element can be implemented in the form of a software program, which runs on a processor integrated inside the chip module, and the remaining (if any) modules/units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in the terminal, the various modules/units contained therein can be implemented in the form of hardware such as circuits, and different modules/units can be located in the same component (for example, chip, circuit module, etc.) or in different components in the terminal, or, at least some modules/units can be implemented in the form of a software program, which runs on a processor integrated inside the terminal, and the remaining (if any) modules/units can be implemented in the form of hardware such as circuits.

The above-mentioned integrated unit implemented in the form of a software functional unit can be stored in a computer-readable storage medium. The above-mentioned software functional unit is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform some steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, referred to as ROM), random access memory (Random Access Memory, referred to as RAM), disk or optical disk and other media that can store program codes.

It should be understood that the term "and/or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. 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 "/" in this article indicates that the associated objects before and after are in an "or" relationship.

The "plurality" appearing in the embodiments of the present application refers to two or more.

The first, second, etc. descriptions appearing in the embodiments of the present application are only used for illustration and distinction of the description objects. There is no order, nor do they indicate any special limitation on the number of devices in the embodiments of the present application, and cannot constitute any limitation on the embodiments of the present application.

Although the present application is disclosed as above, the present application is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, so the protection scope of the present application shall be subject to the scope defined by the claims.

Claims

A communication method, characterized in that the method comprises:

Sending first information, where the first information is used to indicate a rate at which the access network device expects the core network device to send service data.
The method according to claim 1 is characterized in that the expected rate of the access network device is determined according to the storage capacity of the access network device and/or the rate at which the access network device sends the service data.
The method according to claim 1 or 2 is characterized in that the service data is data of XR service.
The method according to any one of claims 1 to 3, characterized in that the method further comprises:

A response to the first information is received.
The method according to claim 4 is characterized in that the response to the first information includes second information, and the second information is used to indicate the rate at which the core network device sends the service data, and the rate indicated by the second information is different from the rate indicated by the first information.
The method according to claim 5 is characterized in that if the response does not include the second information, the rate at which the core network device sends the service data is the rate indicated by the first information.
The method according to any one of claims 1 to 6 is characterized in that the first information also carries a terminal identifier, and the rate indicated by the first information is associated with the terminal indicated by the terminal identifier.
The method according to claim 7 is characterized in that if the first information does not carry the terminal identifier, the rate indicated by the first information is a public rate.
The method according to any one of claims 1 to 8, characterized in that The method also includes:

Send a switching request and third information, where the third information is used to indicate the rate at which the core network device sends the service data.
A communication method, characterized in that the method comprises:

First information is received, where the first information is used to indicate a rate at which a core network device expects an access network device to send service data.
The method according to claim 10 is characterized in that the expected rate of the access network device is determined according to the storage capacity of the access network device and/or the rate at which the access network device sends the service data.
The method according to claim 10 or 11 is characterized in that the service data is data of an XR service.
The method according to any one of claims 10 to 12, characterized in that the method further comprises:

A response to the first information is sent.
The method according to claim 13 is characterized in that the response to the first information includes second information, and the second information is used to indicate the rate at which the core network device sends the service data, and the rate indicated by the second information is different from the rate indicated by the first information.
The method according to claim 14 is characterized in that if the response does not include the second information, the rate at which the core network device sends the service data is the rate indicated by the first information.
The method according to any one of claims 10 to 15 is characterized in that the first information also carries a terminal identifier, and the rate indicated by the first information is associated with the terminal indicated by the terminal identifier.
The method according to claim 16, characterized in that if the first information does not carry the terminal identifier, the rate indicated by the first information is a public rate. Rate.
The method according to any one of claims 10 to 17, characterized in that the method further comprises:

Receive fourth information, where the fourth information is used to indicate a rate expected by the target access network device, and the rate indicated by the fourth information is different from a rate at which the core network device sends the service data to the source access network device.
The method according to claim 18, characterized in that the fourth information is carried in a path switching request.
A communication method, characterized in that the method comprises:

A switching request and third information are received, where the third information is used to indicate a rate at which the core network device sends service data.
The method according to claim 20, characterized in that the method further comprises:

Send fourth information, where the fourth information is used to indicate a rate at which the core network device expected by the target access network device sends the service data, and the rate indicated by the fourth information is different from the rate indicated by the third information.
A communication device, characterized in that the device comprises:

The communication module is used to send first information, where the first information is used to indicate the rate at which the access network device expects the core network device to send business data.
A communication device, characterized in that the device comprises:

The communication module is used to receive first information, where the first information is used to indicate the rate at which the access network device expects the core network device to send business data.
A communication device, characterized in that the device comprises:

The communication module is used to receive a switching request and third information, where the third information is used to indicate the rate at which the core network device sends service data.
A computer-readable storage medium having a computer program stored thereon, characterized in that when the computer program is executed by a computer, the communication method described in any one of claims 1 to 9, the communication method described in any one of claims 10 to 19, or the communication method described in claim 20 or 21 is executed.
A communication device comprises a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and wherein the processor executes the steps of the communication method according to any one of claims 1 to 9 when running the computer program.
A communication device comprises a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and wherein the processor executes the steps of the communication method described in any one of claims 10 to 19 when running the computer program.
A communication device comprises a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and wherein the processor executes the steps of the communication method described in claim 20 or 21 when running the computer program.