CN118055457A

CN118055457A - Communication method, computer-readable storage medium, and communication device

Info

Publication number: CN118055457A
Application number: CN202211440099.8A
Authority: CN
Inventors: 韩立锋
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2022-11-17
Filing date: 2022-11-17
Publication date: 2024-05-17
Also published as: WO2024104454A2

Abstract

A communication method, a computer-readable storage medium, and a communication device, the method comprising: and sending first information, wherein the first information is used for indicating the rate of sending service data by core network equipment expected by the access network equipment. The scheme provided by the application can be beneficial to improving the success rate of data transmission.

Description

Communication method, computer-readable storage medium, and communication device

Technical Field

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

Background

With the development of wireless communication technology, the service to be transmitted in some application scenarios has the characteristics of large data volume, high transmission delay requirement and the like, and brings great challenges to the transmission capacity of the network, a scheduling algorithm and the like.

For example, the Extended Reality (XR) technology fuses a physical environment and a virtual environment, can provide a completely immersive virtual experience environment for a user, and has a wide application prospect in The Fifth generation mobile communication technology (The Extended Reality-Generation mobile communications, 5G) era. XR technology refers to various kinds of common names such as Virtual Reality (VR), augmented Reality (Augmented Reality AR), and Mixed Reality (MR). The service transmitted based on the XR technology can be called XR service, the data of the XR service is usually high-definition real-time video data, and the XR service has the characteristics of large data volume, high transmission delay requirement and the like, and has high requirement on network transmission capability.

Disclosure of Invention

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

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

Optionally, first information is sent, where the first information is used to indicate a rate at which the core network device that is expected by the access network device sends service data.

Optionally, the desired rate of the access network device is determined according to the storage capability of the access network device and/or the rate at which the service data is sent by the access network device.

Optionally, the service data is XR service data.

Optionally, the method further comprises: a response to the first information is received.

Optionally, the response of 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 common rate.

Optionally, the method further comprises: and sending a switching request and third information, wherein the third information is used for indicating the rate of sending the service data by the core network equipment.

In a second aspect, an embodiment of the present application provides a communication method, including: and receiving first information, wherein the first information is used for indicating the rate of sending service data by core network equipment expected by access network equipment.

Optionally, the service data is XR service data.

Optionally, the method further comprises: and sending a response of the first information.

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

Optionally, the method further comprises: and receiving fourth information, wherein the fourth information is used for indicating the rate expected by target access network equipment, and the rate indicated by the fourth information is different from the rate at which the core network equipment sends the service data to source access network equipment.

In a third aspect, an embodiment of the present application provides a communication method, including: and receiving a switching request and third information, wherein the third information is used for indicating the rate of sending service data by the core network equipment.

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 sends 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 apparatus, including: and the communication module is used for sending first information, wherein the first information is used for indicating the rate of sending service data by the core network equipment expected by the access network equipment.

In a fifth aspect, an embodiment of the present application further provides a communication apparatus, including: and the communication module is used for receiving first information, and the first information is used for indicating the rate of sending service data by the core network equipment expected by the access network equipment.

In a sixth aspect, an embodiment of the present application further provides a communication apparatus, including: and the communication module is used for receiving the switching request and third information, wherein the third information is used for indicating the rate of sending the service data by the core network equipment.

In a seventh aspect, embodiments of the present application further provide a computer readable storage medium, which when executed by a computer, causes the communication method provided in the first aspect or the second aspect or the third aspect to be performed.

In an eighth aspect, an embodiment of the present application further provides a communication apparatus, including a memory and a processor, where the memory stores a computer program executable on the processor, and the processor executes the steps of the communication method provided in the first aspect when the processor executes the computer program.

In a ninth aspect, an embodiment of the present application further provides a communication apparatus, including a memory and a processor, where the memory stores a computer program executable on the processor, and the processor executes the steps of the communication method provided in the second aspect when the processor executes the computer program.

In a tenth aspect, an embodiment of the present application further provides a communication apparatus, including a memory and a processor, where the memory stores a computer program executable on the processor, and the processor executes the steps of the communication method provided in the third aspect when the processor executes the computer program.

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

In the scheme of the embodiment of the application, the access network equipment sends the first information, and the first information is used for indicating the rate of sending the service data by the core network equipment expected by the access network equipment. By adopting the scheme, the access network equipment actively reports the transmission rate of the service data expected by the access network equipment, and the core network equipment can transmit the service data at a more suitable rate, so that the situation of service data transmission failure caused by unsuitable rate is reduced.

Drawings

FIG. 1 is a flow chart of a communication method in the prior art;

FIG. 2 is a flow chart of a communication method according to an embodiment of the application;

FIG. 3 is a flow chart of another communication method according to an embodiment of the application;

fig. 4 is a schematic structural diagram of a first communication device according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a second communication device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a third communication device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a fourth communication device according to an embodiment of the present application.

Detailed Description

It should be noted that, the communication system applicable to the embodiment of the present application includes, but is not limited to, a long term evolution (long term evolution, abbreviated as LTE) system, a fifth generation (5 th-generation, abbreviated as 5G) system (e.g., a New Radio (NR) system), and a future evolution system or a plurality of communication fusion systems. The 5G system may be a non-independent Networking (NSA) 5G system or an independent networking (standalone, SA) 5G system. The scheme of the embodiment of the application can be also applied to various new communication systems in the future, such as 6G, 7G and the like.

A terminal in an embodiment of the present application may refer to various forms of User Equipment (UE), an access terminal, a subscriber unit, a subscriber Station, a Mobile Station (MS), a remote Station, a remote terminal, a Mobile device, a User terminal, a terminal device (Terminal Equipment), a wireless communication device, a User agent, or a User Equipment. The terminal may also be a cellular phone, a cordless phone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, a wearable device, a terminal in a future 5G network or a terminal in a future evolved public land mobile network (Public Land Mobile Network, PLMN) and so on, which the embodiments of the present application are not limited. In some embodiments of the present application, the terminal device may also be a device with a transceiver function, such as a chip system. The chip system may include a chip and may also include other discrete devices.

The access network device in the embodiment of the present application is a device that provides a wireless communication function for a terminal, and may also be referred to as a radio access network (radio access network, abbreviated as RAN) device, or an access network element, where the access network device may support at least one wireless communication technology, such as LTE, NR, and so on. For example, the access network device may be a Base Station (BS) (also referred to as a base station device), the device providing the base station function in the second generation (2 nd-generation, 2G) network includes a base radio transceiver station (base transceiver station, BTS) and the device providing the base station function in the third generation (3 rd-generation, 3G) network includes a Node B (Node B), the device providing the base station function in the fourth generation (4 th-generation, 4G) network includes an evolved Node B (eNB), the device providing the base station function in the wireless local area network (wireless local area networks, WLAN) is an Access Point (AP), the device providing the base station function in NR, the next generation base station Node (next generation Node base station, gNB), and the Node B continuing to evolve (ng-eNB), wherein the Node B and the terminal device communicate using NR technology, the device and the Node B are connected to the core network by using evolved universal terrestrial radio access (Evolved Universal Terrestrial Radio Access, E-UTRA) and the Node B using the evolved terrestrial radio access technology. The access network device in the embodiment of the application also comprises a device for providing the function of the base station in a new communication system in future, and the like. In some embodiments, the access network device may also be a device, such as a system-on-a-chip, having the functionality to provide wireless communication for the terminal. By way of example, the chip system may include a chip, and may also include other discrete devices.

The first core network device in the embodiments of the present application may be an access and mobility management function (ACCESS AND Mobility Management Function, AMF) entity or a session management function (session management function, SMF) entity. The access network equipment establishes control plane signaling connection through the control plane interface N2 and the AMF and is used for realizing the functions of wireless access bearing control and the like. The AMF is mainly responsible for functions such as authentication of the terminal, mobility management of the terminal, network Slice (SMF) selection, and the like. The AMF may provide routing of N1/N2 interface session management (session management, SM) messages as SMFs; and maintaining and managing state information of the terminal. The SMF is mainly responsible for all control plane functions of terminal session management including user plane function (user plane function, UPF) selection, network interconnect protocol (internet protocol, IP) address assignment, quality of service (quality of service, qoS) management of the session.

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 a user plane interface N3 and is used for transmitting data of the terminal. In other words, the UPF entity mainly completes functions such as routing forwarding of user plane data.

It should be noted that, in the embodiment of the present application, the AMF entity, the SMF entity, the UPF entity, and the like are just one name, and the name does not limit the entity itself. In 5G networks and other networks in the future, network elements or devices corresponding to these entities may also be named, which is not particularly limited in the embodiments of the present application.

The scheme provided by the embodiment of the application can be used for XR scenes, namely, the scheme of the embodiment of the application can be adopted for transmitting the data of XR business. The XR service data may be video data. The communication method provided by the embodiment of the application is mainly described by taking the data of XR service as an example. In an actual application scenario, the communication method provided by the embodiment of the application can also be used for transmitting other service data.

In the XR scenario, an XR Server (XR Server) transmits data of the XR service to the terminal via the network and presents it.

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

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

Currently, the third generation partnership project (the 3rd Generation Partnership Project, 3GPP for short) determines that the UPF sends XR data to the access network device at a constant rate.

From the perspective of a single network element, the UPF entity acts as a gateway of the core network, and has enough storage capacity and strong processing capacity. Access network devices are generally responsible for data transmission over a wireless interface, which has a small memory capacity and is not suitable for storing large amounts of data. In addition, from the interface point of view between network elements, the N6 interface above the UPF entity belongs to the backbone network, and the transmission capacity is larger.

When the existing scheme is adopted to transmit XR data, the UPF entity may send the XR data to the access network device at an excessively high rate, which easily causes that the access network device cannot store or cannot transmit at the wireless interface, and there is a risk of discarding the data packet.

Specifically, after receiving the XR service data issued by the UPF entity, the access network device does not issue the XR service data to the terminal immediately, and the access network device needs to perform a series of processing on the XR service data, and invokes the resource to send the XR service data to the terminal after the processing is completed. Therefore, when the storage space available by the access network device is small or the transmission of the wireless interface is limited, and the rate of the data sent by the UPF entity cannot be adapted, the access network device may discard the data due to the fact that the data cannot be stored, so that the transmission of part of the service data fails.

Similar to XR scenario, in other service scenarios, the UPF entity also uses a constant rate to send service data to the access network device, and there is a case that the access network device may discard data because it cannot adapt to the rate at which the UPF entity issues service data, thereby causing failure in transmission of part of service data.

In view of this, an embodiment of the present application provides a communication method, where in the solution of the embodiment of the present application, an access network device sends first information, where the first information is used to indicate a rate at which a core network device expected by the access network device sends service data to the access network device. By adopting the scheme, the access network equipment actively reports the transmission rate of the service data expected by the access network equipment, and the core network equipment can transmit the service data at a more suitable rate, so that the situation of service data transmission failure caused by unsuitable rate is reduced.

Referring to fig. 2, fig. 2 is a flow chart of a communication method according to an embodiment of the application. As shown in fig. 2, the method shown in fig. 2 may include S21 to S24. In the present application, S in each step number represents a step (step).

S21, the access network equipment sends first information to the first core network equipment. The first information is used for indicating the rate of sending service data by the core network equipment expected by the access network equipment.

Wherein the rate indicated by the first information may comprise at least one of: an uplink packet unit (PACKET DATA unit, abbreviated PDU) session maximum rate (Session Aggregate Maximum Bit Rate), a downlink PDU session maximum rate (Session Aggregate Maximum Bit Rate), an uplink guaranteed rate for a quality of service (Quality of Service, abbreviated QoS) flow, a downlink guaranteed rate for a QoS flow, an uplink maximum rate for a QoS flow, and a downlink maximum rate for a QoS flow. Wherein, the QoS flow is the minimum differentiated granularity of QoS, and the data packets in one QoS flow have the same QoS requirement.

Specifically, the first information is used to indicate a desired rate of the access network device, and the desired rate is a rate at which the second core network device transmits service data. More specifically, the rate indicated by the first information is a rate at which the access network device expects the second core network device to send traffic 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 procedure. 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 traffic transmission to update the desired rate.

Prior to S21, the access network device may determine a rate desired by the access network device.

In particular, the access network device may determine the desired rate based on the storage capabilities of the access network device and/or the rate at which the access network device transmits traffic data over the wireless interface. In other words, the access network device may determine the desired rate based on its own storage capacity and/or the rate at which it sends traffic data to the terminal.

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

If the first information carries the terminal identification, the first core network device may determine that the rate indicated by the first information is associated with the target terminal. In other words, the rate indicated by the first information is a rate expected by the access network device to be adopted by the second core network device in the service transmission process of the target terminal.

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

Further, since the access network device has not yet transmitted service data to the target terminal during the service establishment of the target terminal, the access network device may determine the desired rate according to the storage capability during the service establishment of the target terminal. During traffic transmission at the target terminal, the access network device may determine the desired rate based on the storage capacity and/or the rate at which traffic data is sent to the target terminal over the wireless interface.

Specifically, the number of target terminals may be 1 or more, and this embodiment is not limited thereto.

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

In particular, the access network device may determine the desired rate based on the rate at which traffic data is sent to one or more terminals of the connection. That is, the access network device does not determine the desired rate according to the rate at which the service data is transmitted to the specific terminal, nor does the rate indicated by the first information.

As one example, the access network device may determine the desired rate based on the capacity and/or the downstream throughput.

In a specific implementation, the access network device may send the above-mentioned common rate to the first core network device. Then, in the service establishment process or the service transmission process of a certain terminal, if the access network device sends first information carrying the terminal identifier, the first core network device can determine the rate adopted by the service transmission of the terminal according to the first information. If the access network device does not send the first information, the first core network device may determine a rate adopted by the service transmission of the terminal according to the common rate.

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

S23, the first core network device sends control information to the second core network device, wherein the control information is used for indicating the rate to the second core network device.

It should be noted that, the execution sequence of S22 and S23 is not limited in the embodiment of the present application, and S22 may be executed first and S23 may be executed second, or S23 may be executed first and S22 may be executed second, 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 the service data to the second core network device through the control information.

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

Specifically, if the first core network device determines that the rate indicated by the first information is not used, the first core network device may modify the rate indicated by the first information to obtain a modified rate. Further, the first core network device may inform the access network device of the modified rate and instruct the network device to send traffic data at the modified rate. More specifically, the response of the first information may include a 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 of the first information, it may be known that the second core network device will send the service data at the modified rate.

And if the first core network equipment determines to adopt the rate indicated by the first information, indicating the second core network equipment 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 of the first information to the access device, wherein the response of the first information does not include the modified rate. In this case, after the access network device receives the response of the first information, it may learn that the second core network device will send the service data at the rate indicated by the first information.

In another example, the first core network device may not determine 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 transmits control information and a response to the first information, wherein a rate indicated by the control information is the same as a rate indicated by the first information.

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

In particular, the second core network device may send traffic data to the access network device at a rate indicated by the control information. I.e. the rate at which the second core network device performs the control information indication.

More specifically, if the rate indicated by the control information is the rate indicated by the first information, the second core network device sends service data to the access network device at a rate desired by the access network device. And if the rate indicated by the control information is the modified rate, the second core network equipment adopts the modified rate to send service data to the access network equipment.

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

The process of sending service data to the terminal by the access network device may refer to the related description of the existing downlink data transmission, which is not described herein.

Further, the scheme provided by the embodiment of the application can be suitable for the scene of switching the access network equipment.

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

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

Wherein the third information may be used to indicate a rate at which the second core network device transmits traffic data. More specifically, the rate indicated by the third information is a rate at which the second core network device transmits 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 transmits service data to the source access device.

Specifically, in the access network device switching flow, the source access network device sends a switching request to the target access network device, and in addition, the source access network device sends third information to the target access network device.

In one example, the source access network device sends the handover request before sending 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 when sending the handover request. In yet another example, the source access network device may send the third information before sending the handover request.

The source access network device informs the target access network device of the current rate of sending the service data by the second core network device 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 an implementation, the response to the third information may be carried in the response to the handover request.

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

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

Wherein the fourth information is used to indicate a desired rate for the target access network device. That is, the fourth information is used to indicate a rate at which the second core network device desired by the target access network device sends service data to the target access network device. The terminal indicated by the terminal identifier carried by the fourth information can be the terminal initiating the switching of the access network equipment.

In a specific implementation, the target access network device may determine whether to continue the rate indicated by the third information before performing S32. If the result is yes, the target access network device may not send the fourth information. That is, without performing S32 and S33, the default second core network device continues to transmit traffic data to the target access network device at the rate indicated by the third information.

The fourth information may be sent to the first core network device if the target access network device determines that the rate indicated by the third information is not to be used. More specifically, the target access network device may determine the rate desired by the target access device based on its own storage capabilities and/or the rate at which traffic data is sent over the wireless interface. Regarding the description of the determination of the desired rate by the target access network device, reference may be made to the description regarding S21 above, which is not repeated here.

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 handover request, the target access network device sends a path handover request to the first core network device, and in response to the path handover (PATH SWITCH) request, the first core network device sends a path handover response to the target access network device. Wherein the path switch request may not include the fourth information if the target access network device determines to follow the rate indicated by the third information; if the target access network device determines that the rate indicated by the third information is not to be used, the path switch request may include fourth information and, accordingly, the path switch 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 employ the rate indicated by the fourth information. Or the first core network device may also modify the rate indicated by the fourth information to obtain a modified rate. Further, the response of 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 by adopting 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 by adopting the rate indicated by the fourth information; and if the first core network equipment receives the fourth information and modifies the fourth information, the second core network equipment sends service data to the target access network equipment by adopting the modified rate.

For more details about the communication method shown in fig. 3, reference may be made to the related description of fig. 2, and a detailed description thereof will be omitted.

It will be appreciated that in a specific implementation, the method may be implemented in a software program running on a processor integrated within a chip or a chip module; alternatively, the method may be implemented in hardware or a combination of hardware and software, for example, implemented in a dedicated chip or chip module, or implemented in a dedicated chip or chip module in combination with a software program.

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

Referring to fig. 4, fig. 4 is a schematic structural diagram of a first communication apparatus according to an embodiment of the present application, where the communication apparatus shown in fig. 4 may be deployed in the access network device, and the apparatus shown in fig. 4 may include: the communication module 41, wherein,

The communication module 41 is configured to send first information, where the first information is used to indicate a rate at which the core network device that is expected by the access network device sends service data.

In a specific implementation, the communication apparatus shown in fig. 4 may correspond to a chip with a communication function in the access network device; or corresponds to the access network device including a chip or a chip module having a communication function therein, or corresponds to the access network device.

Referring to fig. 5, fig. 5 is a schematic structural diagram of a second communication apparatus according to an embodiment of the present application, and the communication apparatus shown in fig. 5 may be disposed in the first core network device. The apparatus shown in fig. 5 may include: a communication module 51.

The communication module 51 is configured to receive first information, where the first information is used to indicate a rate at which the core network device that is expected by the access network device sends service data.

In a specific implementation, the communication apparatus shown in fig. 5 may correspond to a chip with a communication function in the core network device; or corresponds to a chip or a chip module having a communication function included in the core network device, or corresponds to the core network device.

Referring to fig. 6, fig. 6 is a schematic structural diagram of a third communication apparatus according to an embodiment of the present application, where the communication apparatus shown in fig. 6 may be deployed in the target access network device described above. The apparatus shown in fig. 6 may include: the communication module 61, wherein,

The communication module 61 is configured to receive a handover 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 apparatus shown in fig. 6 may correspond to a chip with a communication function in the access network device; or corresponds to the access network device including a chip or a chip module having a communication function therein, or corresponds to the access network device.

For more matters such as the working principle, the working method and the beneficial effects of the communication device in the embodiment of the present application, reference may be made to the above related description about the communication method, which is not repeated here.

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

The embodiment of the application also provides a fourth communication device, which comprises a memory and a processor, wherein the memory stores a computer program capable of running on the processor, and the processor executes the steps of the communication method when running the computer program. The communication device may be the access network device above, or may be the first core network device above.

Referring to fig. 7, fig. 7 is a schematic structural diagram of a fourth communication device according to an embodiment of the present application. The communication device shown in fig. 7 includes a memory 71 and a processor 72, the processor 72 being coupled to the memory 71, the memory 71 being either located within the communication device or located outside the communication device. The memory 71 and the processor 72 may be connected by a communication bus. The memory 71 has stored thereon a computer program executable on the processor 72, which processor 72 executes the steps of the communication method provided by the above-described embodiments when it is executed.

It should be appreciated that in the embodiment of the present application, the processor may be a central processing unit (central processing unit, abbreviated as CPU), and the processor may also be other general purpose processors, digital signal processors (DIGITAL SIGNAL processors, abbreviated as DSP), application Specific Integrated Circuits (ASIC), off-the-shelf programmable gate arrays (field programmable GATE ARRAY, abbreviated as FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an erasable programmable ROM (erasable PROM EPROM), an electrically erasable programmable ROM (ELECTRICALLY EPROM, EEPROM), or a flash memory. The volatile memory may be a random access memory (random access memory, RAM for short) which acts as an external cache. By way of example, and not limitation, many forms of random access memory (random access memory, RAM) are available, such as static random access memory (STATIC RAM, SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (double DATA RATE SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCHLINK DRAM, SLDRAM), and direct memory bus random access memory (direct rambus RAM, DR RAM).

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

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

In the several embodiments provided in the present application, it should be understood that the disclosed method, apparatus and system may be implemented in other manners. For example, the device embodiments described above are merely illustrative; for example, the division of the units is only one logic function division, and other division modes can be adopted in actual implementation; for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of 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 the embodiments of the present application may be integrated in one processing unit, or each unit may be physically included separately, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units. For example, for each device or product applied to or integrated on a chip, each module/unit included in the device or product may be implemented in hardware such as a circuit, or at least some modules/units may be implemented in software program, where the software program runs on a processor integrated inside the chip, and the remaining (if any) part of modules/units may be implemented in hardware such as a circuit; for each device and product applied to or integrated in the chip module, each module/unit contained in the device and product can be realized in a hardware manner such as a circuit, different modules/units can be located in the same component (such as a chip, a circuit module and the like) or different components of the chip module, or at least part of the modules/units can be realized in a software program, the software program runs on a processor integrated in the chip module, and the rest (if any) of the modules/units can be realized in a hardware manner such as a circuit; for each device, product, or application to or integrated with the terminal, each module/unit included in the device, product, or application may be implemented in hardware such as a circuit, where different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components in the terminal, or at least some modules/units may be implemented in a software program, where the software program runs on a processor integrated within the terminal, and the remaining (if any) some modules/units may be implemented in hardware such as a circuit.

The integrated units implemented in the form of software functional units described above may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium, and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory RAM), a magnetic disk, or an optical disk, etc., which can store program codes.

It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In this context, the character "/" indicates that the front and rear associated objects are an "or" relationship.

The term "plurality" as used in the embodiments of the present application means two or more.

The first, second, etc. descriptions in the embodiments of the present application are only used for illustrating and distinguishing the description objects, and no order is used, nor is the number of the devices in the embodiments of the present application limited, and no limitation on the embodiments of the present application should be construed.

Although the present application is disclosed above, the present application is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the application, and the scope of the application should be assessed accordingly to that of the appended claims.

Claims

1. A method of communication, the method comprising:

And sending first information, wherein the first information is used for indicating the rate of sending service data by core network equipment expected by the access network equipment.

2. The method according to claim 1, wherein the rate desired by the access network device is determined based on the storage capabilities of the access network device and/or the rate at which the service data is sent by the access network device.

3. The method according to claim 1 or 2, wherein the service data is XR service data.

4. A method according to any one of claims 1 to 3, further comprising:

A response to the first information is received.

5. The method of claim 4, wherein the response to the first information includes second information indicating a rate at which the core network device transmits the traffic data, and wherein the second information indicates a rate different from the rate indicated by the first information.

6. The method of claim 5, wherein the rate at which the core network device sends the traffic data is the rate indicated by the first information if the response does not include the second information.

7. A method according to any one of claims 1 to 6, wherein the first information further carries a terminal identity, and wherein the rate indicated by the first information is associated with a terminal indicated by the terminal identity.

8. The method of claim 7, wherein the rate indicated by the first information is a common rate if the first information does not carry the terminal identification.

9. The method according to any one of claims 1 to 8, further comprising:

and sending a switching request and third information, wherein the third information is used for indicating the rate of sending the service data by the core network equipment.

10. A method of communication, the method comprising:

and receiving first information, wherein the first information is used for indicating the rate of sending service data by core network equipment expected by access network equipment.

11. The method according to claim 10, wherein the rate desired by the access network device is determined based on the storage capabilities of the access network device and/or the rate at which the service data is sent by the access network device.

12. The method according to claim 10 or 11, wherein the service data is XR service data.

13. The method according to any one of claims 10 to 12, further comprising:

And sending a response of the first information.

14. The method of claim 13, wherein the response to the first information includes second information indicating a rate at which the core network device transmits the traffic data, and wherein the second information indicates a rate different from the rate indicated by the first information.

15. The method of claim 14, wherein the rate at which the core network device sends the traffic data is the rate indicated by the first information if the response does not include the second information.

16. A method according to any one of claims 10 to 15, wherein the first information further carries a terminal identity, the rate indicated by the first information being associated with the terminal indicated by the terminal identity.

17. The method of claim 16, wherein the rate indicated by the first information is a common rate if the first information does not carry the terminal identification.

18. The method according to any one of claims 10 to 17, further comprising:

and receiving fourth information, wherein the fourth information is used for indicating the rate expected by target access network equipment, and the rate indicated by the fourth information is different from the rate at which the core network equipment sends the service data to source access network equipment.

19. The method of claim 18, wherein the fourth information is carried in a path switch request.

20. A method of communication, the method comprising:

and receiving a switching request and third information, wherein the third information is used for indicating the rate of sending service data by the core network equipment.

21. The method of claim 20, wherein the method further comprises:

And sending fourth information, wherein the fourth information is used for indicating the rate of sending the service data by the core network equipment expected by the target access network equipment, and the rate indicated by the fourth information is different from the rate indicated by the third information.

22. A communication device, the device comprising:

And the communication module is used for sending first information, wherein the first information is used for indicating the rate of sending service data by the core network equipment expected by the access network equipment.

23. A communication device, the device comprising:

And the communication module is used for receiving first information, and the first information is used for indicating the rate of sending service data by the core network equipment expected by the access network equipment.

24. A communication device, the device comprising:

And the communication module is used for receiving the switching request and third information, wherein the third information is used for indicating the rate of sending the service data by the core network equipment.

25. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when run by a computer, causes the communication method of any one of claims 1 to 9 or the communication method of any one of claims 10 to 19 or the communication method of claim 20 or 21 to be performed.

26. A communication device comprising a memory and a processor, the memory having stored thereon a computer program executable on the processor, characterized in that the processor executes the steps of the communication method according to any of claims 1 to 9 when the computer program is executed.

27. A communication device comprising a memory and a processor, the memory having stored thereon a computer program executable on the processor, characterized in that the processor executes the steps of the communication method according to any of claims 10 to 19 when the computer program is executed.

28. A communication device comprising a memory and a processor, the memory having stored thereon a computer program executable on the processor, characterized in that the processor executes the steps of the communication method according to claim 20 or 21 when the computer program is executed.