CN114071578A

CN114071578A - Data transmission method and device, core network equipment and access network side equipment

Info

Publication number: CN114071578A
Application number: CN202010754573.9A
Authority: CN
Inventors: 谢振华; 张艳霞; 柯小婉
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2022-02-18
Also published as: WO2022022568A1

Abstract

The application discloses a data transmission method, a data transmission device, core network equipment and access network side equipment, and belongs to the technical field of communication. The data transmission method comprises the following steps: after a service data sending channel is established with first access network side equipment, resource information is obtained, wherein the service data sending channel is used for the first access network side equipment to receive service data to be sent to a terminal user, and the resource information comprises at least one of first resource information and second resource information; sending a termination identifier through the first resource and/or sending a termination identifier through the second resource; the first resource is a resource which is allocated to the first access network side device and is aimed at the terminal user, and the second resource is a resource which is allocated to the second access network side device and is aimed at the terminal user. The embodiment of the application can finish forwarding the multicast service data aiming at a certain terminal user.

Description

Data transmission method and device, core network equipment and access network side equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a data transmission method and apparatus, a core network device, and an access network side device.

Background

In the related art, when a terminal of a unicast service is switched, since a data transmission channel between a base station and a core network is dedicated to each terminal, in the case of unicast, the core network may transmit an end instruction to the data transmission channel of the switched terminal through the base station, while data of a multicast service is transmitted through a shared channel between the base station and the core network, the shared channel being shared by a plurality of unspecified terminals, and when a terminal of the multicast service is switched, it is impossible to end forwarding the multicast service data to a certain terminal.

Disclosure of Invention

An object of the embodiments of the present application is to provide a data transmission method, an apparatus, a core network device, and an access network side device, which can solve a problem how to finish forwarding multicast service data for a certain terminal user.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, a data transmission method is provided, which is applied to a first core network device, and includes:

after a service data sending channel is established with first access network side equipment, resource information is obtained, wherein the service data sending channel is used for the first access network side equipment to receive service data to be sent to a terminal user, and the resource information comprises at least one of first resource information and second resource information;

sending a termination identifier through the first resource and/or sending a termination identifier through the second resource;

the first resource is a resource which is allocated to the first access network side device and is aimed at the terminal user, and the second resource is a resource which is allocated to the second access network side device and is aimed at the terminal user.

In a second aspect, a data transmission method is provided, which is applied to a second core network device, and includes:

after controlling a first core network device and a first access network side device to establish a service data sending channel, acquiring resource information, wherein the resource information comprises at least one of information of a first resource and information of a second resource;

sending the resource information to a first core network device;

the first resource is a resource which is allocated to the first access network side device and is aimed at the terminal user, the second resource is a resource which is allocated to the second access network side device and is aimed at the terminal user, and the resource information is used for the first core network device to send the termination identifier through the first resource and/or the second resource.

In a third aspect, a data transmission method is provided, which is applied to a first access network side device, and includes:

after a service data sending channel is established with first core network equipment, acquiring information of a third resource aiming at a terminal user through second core network equipment;

stopping sending the service data through the third resource if a condition is met;

the third resource is a resource, which is allocated by a second access network side device and is for the terminal user, or a resource, which is allocated by the second core network device and is for the terminal user.

In a fourth aspect, a data transmission apparatus is provided, which is applied to a first core network device, and includes:

a first obtaining module, configured to obtain resource information after establishing a service data sending channel with a first access network side device, where the service data sending channel is used for the first access network side device to receive service data to be sent to a terminal user, and the resource information includes at least one of information of a first resource and information of a second resource;

a first transmission module, configured to send a termination identifier through the first resource, and/or send a termination identifier through the second resource;

In a fifth aspect, a data transmission apparatus is provided, which is applied to a second core network device, and includes:

a second obtaining module, configured to obtain resource information after controlling a first core network device and a first access network side device to establish a service data sending channel, where the resource information includes at least one of information of a first resource and information of a second resource;

a second transmission module, configured to send the resource information to the first core network device;

In a sixth aspect, a data transmission apparatus is provided, which is applied to a first access network-side device, and includes:

a third obtaining module, configured to obtain, by a second core network device, information of a third resource for the terminal user after establishing a service data transmission channel with the first core network device;

the second processing module is used for stopping sending the service data through the third resource under the condition that the condition is met;

In a seventh aspect, a core network device is provided, which includes a processor, a memory, and a program or an instruction stored on the memory and executable on the processor, and when executed by the processor, the program or the instruction implements the steps of the method according to the first aspect or implements the steps of the method according to the second aspect.

In an eighth aspect, an access network side device is provided, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor, and when executed by the processor, the program or instructions implement the steps of the method according to the third aspect.

A ninth aspect provides a readable storage medium on which is stored a program or instructions which, when executed by a processor, carries out the steps of the method according to the first aspect, or the steps of the method according to the second aspect, or the steps of the method according to the third aspect.

In a tenth aspect, a chip is provided, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a network-side device program or instruction to implement the method according to the first aspect, or to implement the method according to the second aspect, or to implement the method according to the third aspect.

In the embodiment of the application, after a service data sending channel is established with a first access network side device, resource information is obtained, wherein the resource information comprises at least one of information of a first resource and information of a second resource; and sending a termination identifier through the first resource and/or sending a termination identifier through the second resource, thereby achieving the purpose of ending forwarding of the multicast service data aiming at a certain terminal user.

Drawings

Fig. 1 is a block diagram of a network system to which an embodiment of the present application is applicable;

fig. 2 is a flowchart illustrating a data transmission method according to an embodiment of the present application;

fig. 3 is a second flowchart of a data transmission method according to an embodiment of the present application;

fig. 4 is a third schematic flowchart of a data transmission method according to an embodiment of the present application;

FIG. 5 is a schematic interaction diagram illustrating a data transmission method according to an embodiment of the present application;

FIG. 6 is a second schematic diagram illustrating an interaction of a data transmission method according to an embodiment of the present application;

FIG. 7 is a block diagram of a data transmission device according to an embodiment of the present application;

fig. 8 is a second block diagram of a data transmission method according to an embodiment of the present application;

fig. 9 is a third block diagram of a data transmission method according to an embodiment of the present application;

fig. 10 is a block diagram showing a configuration of a communication apparatus according to an embodiment of the present application;

fig. 11 shows a block diagram of an access network device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that embodiments of the application can be practiced in sequences other than those illustrated or described herein, and the terms "first" and "second" used herein generally do not denote any order, nor do they denote any order, for example, the first object may be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It is noted that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advan)ced, LTE-a) systems, and may also be used for other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications, such as 6 th generation (6 th generation)^thGeneration, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be called as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, the Wearable Device includes: bracelets, earphones, glasses and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network-side device 12 may be a Base Station or a core network, where the Base Station may be referred to as a node B, an evolved node B, an access Point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a WLAN access Point, a WiFi node, a Transmit Receiving Point (TRP), or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but a specific type of the Base Station is not limited.

The data transmission method provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

In the data transmission method of the embodiment of the application, after controlling a first core network device (UPF) and a first access network side device (first base station) to establish a service data transmission channel, a second core network device (AMF and SMF) acquires resource information, where the resource information includes at least one of information of a first resource and information of a second resource, the first resource is a resource allocated to the terminal user by the first access network side device, and the second resource is a resource allocated to the terminal user by the second access network side device; the second core network device sends the resource information to the first core network device, and the first core network device sends a termination identifier through the first resource and/or the second resource to indicate termination of forwarding, so that the purpose of terminating forwarding of multicast service data for a certain terminal user is achieved. The first access network side equipment acquires information of a third resource aiming at the terminal user through the second core network equipment after establishing a service data sending channel with the first core network equipment; and stopping sending the service data through the third resource under the condition that the condition is met, for example, stopping sending the service data through the third resource when a termination identifier is received or a timeout event occurs, thereby achieving the purpose of ending forwarding the multicast service data for a certain terminal user.

As shown in fig. 2, an embodiment of the present application provides a data transmission method, which is applied to a first core network device, where the first core network device is specifically a User Plane Function (UPF), and the method includes:

step 201: after a service data sending channel is established with first access network side equipment, resource information is obtained, wherein the service data sending channel is used for the first access network side equipment to receive service data to be sent to a terminal user, and the resource information comprises at least one of information of a first resource and information of a second resource.

The service data sending channel is a shared channel not specific to a specific terminal user, and the service data is multicast service data. After a service data transmission channel is established with a first access network side device, a first core network device transmits multicast service data to the first access network side device through the service data transmission channel, and the first access network side device distributes the multicast service data to a terminal in a broadcasting mode or a point-to-point mode.

Specifically, after a service data transmission channel is established with a first access network side device, resource information sent by a second core network device is obtained, where the first resource information is sent to the second core network device by the first access network side device, and the second resource information is sent to the second core network device by the second access network side device. The information of the first resource may be carried by a handover notification message sent by the first access network side device. The information of the second resource may be carried by a handover response message sent by the second access network side device.

Step 202: and sending a termination identifier through the first resource and/or sending a termination identifier through the second resource.

The termination identifier may be used to indicate to stop forwarding the service data, or indicate that the service data is ended, where the termination identifier in this embodiment is an end mark.

In the data transmission method of the embodiment of the application, after a service data sending channel is established with a first access network side device, resource information is acquired, wherein the resource information includes at least one of information of a first resource and information of a second resource; and sending a termination identifier through the first resource and/or sending a termination identifier through the second resource, thereby achieving the purpose of ending forwarding of the multicast service data aiming at a certain terminal user.

Optionally, the sending the termination identifier through the second resource includes:

receiving a termination identifier sent by the first access network side equipment;

and sending a termination identifier through the second resource.

The terminal user may be specifically a switching terminal user, that is, a terminal user that is switched from the first access network side device to the second access network side device. The first access network side device is a first base station (source base station), and the second access network side device is a second base station (target base station).

Here, the first core network device may first send, through the first resource, a termination identifier to the first access network-side device, where the termination identifier indicates that the first access network-side device stops forwarding, and then the first access network-side device sends, through the first core network device, the termination identifier to the second access network-side device to indicate that the second access network-side device stops forwarding, that is, the first access network-side device first sends the terminal identifier to the first core network device, and then the first core network device sends, through the second resource, the termination identifier to the second access network-side device.

Further optionally, the data transmission method in the embodiment of the present application further includes:

and stopping sending the service data through the second resource.

In this embodiment of the present application, after establishing a service data transmission channel with a first access network side device, the first access network side device may send service data to a first core network device, and the first core network device sends the service data to a second access network side device through a second resource. After receiving the termination identifier sent by the first access network-side device, the first core network device may stop sending the service data through the second resource.

As shown in fig. 3, an embodiment of the present application further provides a data transmission method applied to a second core network device, where the second core network device includes an Access and Mobility Management Function (AMF) and a Session Management Function (SMF), and the method includes:

step 301: and after controlling the first core network device and the first access network side device to establish a service data sending channel, acquiring resource information.

The resource information includes at least one of information of the first resource and information of the second resource. The first resource is a resource which is allocated by a first access network side device and is aimed at a terminal user, the second resource is a resource which is allocated by a second access network side device and is aimed at the terminal user, and the resource information is used for the first core network device to send a termination identifier through the first resource and/or the second resource.

The service data sending channel is a shared channel not specific to a specific terminal user, and the service data is multicast service data.

Optionally, the information of the first resource may be carried by a handover notification message sent by the first access network side device. The information of the second resource may be carried by a handover response message sent by the second access network side device.

Step 302: and sending the resource information to the first core network equipment.

Here, after controlling the first core network device and the first access network side device to establish the service data transmission channel, the resource information is acquired and forwarded to the first core network device, so that the first core network device transmits the termination identifier through the first resource and/or the second resource. Specifically, the AMF obtains resource information and sends the resource information to the SMF, and the SMF sends the resource information to the first core network device, i.e., the UPF.

In the data transmission method of the embodiment of the application, after controlling the first core network device and the first access network side device to establish a service data sending channel, resource information is acquired; and sending the resource information to the first core network equipment so that the first core network equipment can send a termination identifier through the first resource and/or send the termination identifier through the second resource, thereby achieving the purpose of finishing forwarding the multicast service data aiming at a certain terminal user.

As shown in fig. 4, an embodiment of the present application further provides a data transmission method, which is applied to a first access network-side device, where the first access network-side device is specifically a first base station (source base station), and the method includes:

step 401: and after a service data sending channel is established with the first core network equipment, acquiring information of a third resource aiming at the terminal user through the second core network equipment.

The service data sending channel is a shared channel not specific to a specific terminal, and the service data is multicast service data.

The third resource is a resource allocated by the second base station for the terminal, or a resource allocated by the second core network device for the terminal.

The information of the third resource may be carried by a handover command sent to the first base station by the second core network device.

In this step, the second core network device may send the resource for the terminal allocated by the second base station or the resource for the terminal allocated by the second core network device to the first base station, so that the first base station sends the service data through the third resource. For example, the first base station sends the service data to the second base station through the resource allocated by the second base station for the terminal, or the first base station sends the service data to the second core network device through the resource allocated by the second core network device for the terminal, and the second core network device sends the service data to the second base station through the resource allocated by the second base station for the terminal.

Step 402: and stopping transmitting the service data through the third resource under the condition that the condition is met.

In this embodiment of the present application, service data is sent by referring to a third resource of the terminal, and when a condition is satisfied, the sending of the service data by using the third resource is stopped, for example, when a termination identifier is received, or a timeout event occurs, the sending of the service data by using the third resource is stopped.

In the data transmission method of the embodiment of the application, after a service data sending channel is established with first core network equipment, information of a third resource for a terminal user is obtained through second core network equipment; and under the condition of meeting the condition, stopping sending the service data through the third resource, thereby achieving the purpose of finishing forwarding the multicast service data aiming at a certain terminal user.

Optionally, the data transmission method according to the embodiment of the present application further includes:

sending the information of the first resource to the second core network device;

wherein the first resource is a resource allocated by the first base station and aiming at the terminal user.

Here, the information of the first resource is sent to the second core network device, and the second core network device sends the information of the first resource to the first core network device, so that the first core network device sends a termination identifier to the first base station through the first resource to instruct the first base station to terminate forwarding the multicast service data.

Optionally, the condition is that a termination identifier is received through the first resource.

Optionally, the condition is occurrence of a timeout event.

The timeout event may be that the timer is overtime, or the time length for the first base station to forward the service data through the third resource reaches a preset time length.

Further optionally, in the data transmission method according to the embodiment of the present application, when the service data is stopped being sent through the third resource, the method further includes:

and sending a termination identifier through the third resource.

Specifically, the terminating identifier is sent to the second base station through the resource allocated by the second base station for the terminal user, or the terminating identifier is sent to the second core network device through the resource allocated by the second core network device for the terminal user, and then the terminating identifier is sent to the second base station by the second core network device.

The data transmission method of the present application is described below with reference to specific embodiments.

The data transmission method of the embodiment of the application has the precondition that the core network sends the multicast data through the shared channel between the core network and the source base station, and the source base station distributes the multicast data to the terminal in a broadcasting mode or a point-to-point mode.

The first embodiment is as follows: as shown in fig. 5, the data transmission method in the embodiment of the present application includes:

step 501: the source base station sends a handover notification message to the AMF.

Here, the source base station decides to perform a Handover operation, selects a target base station, and transmits a Handover notification message, such as a Handover Required message, to the AMF. The handover notification message may indicate that forwarding resources are required.

The selection may be based on measurement reports or candidate cell information when selecting the target base station, or may be autonomous.

Step 502: the AMF sends a handover request to the target base station.

The Handover Request may be a Handover Request message, where the Handover Request carries information in a Handover notification message and also carries information indicating that resources are required to be forwarded.

Step 503: and the target base station reserves air interface resources and downlink forwarding receiving resources and returns a switching response to the AMF.

The Handover Response may be a Handover Response message, which may carry information of the downlink forwarding reception resource for the terminal.

Step 504: and the AMF and the SMF send the information of the downlink forwarding receiving resource of the target base station to the UPF.

The information of the downlink forwarding receiving resource (the information of the second resource) may be tunnel information, and the AMF and the SMF may also reserve a core network forwarding resource for the terminal, for example, notify the UPF to reserve an uplink forwarding resource.

Step 505: and the AMF sends a switching command to the source base station, the switching command carries information of the third resource, and the source base station informs the UE of switching to the target base station.

The information of the third resource is information of a downlink forwarding resource for the terminal allocated by the target base station or information of an uplink forwarding resource for the terminal allocated by the second core network device.

The source base station forwards the multicast service data to the target base station through the downlink forwarding receiving resource; or the core network forwards the multicast service data to the core network, and the core network forwards the multicast service data received through the forwarding channel to the target base station through the target base station forwarding channel.

Step 506: and the terminal is switched to the target base station and sends a switching confirmation to the target base station.

For example, a Handover Confirm message is sent to the target base station.

Step 507: and the target base station sends a switching completion message to the AMF.

For example, a Handover Complete message is sent to the AMF.

Step 508: the AMF and the SMF update the session resources of the core network.

Here, the AMF, receiving the handover complete message, may update the core network session resource using the information of the downlink forwarding reception resource, for example, notify the UPF of the information of the downlink forwarding reception resource.

Step 509: and the UPF sends an endmark to the target base station through the downlink forwarding and receiving resource of the target base station.

Here, send endmark to the target base station to instruct the target base station to stop forwarding, for example, SMF notifies UPF to stop forwarding so as to instruct UPF to send endmark, and the source base station may stop forwarding after a certain time period.

As another alternative embodiment, the source base station stops forwarding after a certain period of forwarding, and sends endmark through the third resource.

Example two: as shown in fig. 6, the data transmission method in the embodiment of the present application includes:

step 601: and the source base station sends a switching notification message to the AMF, wherein the switching notification message carries the information of the first resource.

Step 602: the AMF sends a handover request to the target base station.

Step 603: and the target base station reserves air interface resources and downlink forwarding receiving resources and returns a switching response to the AMF.

Step 604: and the AMF and the SMF indicate the UPF to reserve the core network forwarding resources for the terminal and send the information of the first resources to the UPF.

The core network forwarding resource (third resource) for the terminal may be an uplink forwarding tunnel.

Step 605: the AMF and the SMF send a switching command to the source base station, the switching command carries information of core network forwarding resources, and the source base station informs the UE to be switched to the target base station.

Step 606: and the terminal is switched to the target base station and sends a switching confirmation to the target base station.

For example, a Handover Confirm message is sent to the target base station.

Step 607: and the target base station sends a switching completion message to the AMF.

For example, a Handover Complete message is sent to the AMF.

Step 608: and the AMF updates the session resources of the core network.

Step 609: the UPF sends endmark to the source base station through the first resource.

Here, the UPF sends an endmark to the source base station through the first resource, for instructing the source base station to stop forwarding, and the source base station sends an endmark to the target base station, for instructing the target base station to stop forwarding.

Here, the target source base station may directly send an endmark to the target base station, or may send an endmark to the target base station through the UPF.

In the data transmission method of the embodiment of the application, after controlling a first core network device UPF to establish a service data transmission channel with a source base station, an AMF and an SMF acquire resource information, where the resource information includes at least one of information of a first resource and information of a second resource, the first resource is a resource allocated by the source base station and is specific to the terminal user, and the second resource is a resource allocated by a target base station and is specific to the terminal user; the AMF sends the resource information to the UPF, and the UPF sends a termination identifier through the first resource and/or the second resource to indicate termination of forwarding, so that the purpose of terminating forwarding of multicast service data for a certain terminal user is achieved. After establishing a service data transmission channel with the UPF, the source base station acquires information of a third resource aiming at the terminal user through the AMF and the SMF; and stopping sending the service data through the third resource under the condition that the condition is met, for example, stopping sending the service data through the third resource when a termination identifier is received or a timeout event occurs, thereby achieving the purpose of ending forwarding the multicast service data for a certain terminal user.

It should be noted that, in the data transmission method provided in the embodiment of the present application, the execution main body may be a data transmission device, or a control module in the data transmission device for executing the data transmission method. In the embodiment of the present application, a data transmission method performed by a data transmission device is taken as an example, and the data transmission device provided in the embodiment of the present application is described.

As shown in fig. 7, an embodiment of the present application provides a data transmission apparatus 700, which is applied to a first core network device, and includes:

a first obtaining module 701, configured to obtain resource information after establishing a service data sending channel with a first access network side device, where the service data sending channel is used for the first access network side device to receive service data to be sent to a terminal user, and the resource information includes at least one of information of a first resource and information of a second resource;

a first transmission module 702, configured to send a termination identifier through the first resource and/or send a termination identifier through the second resource;

In the data transmission apparatus according to the embodiment of the present application, the first transmission module includes:

the first receiving submodule is used for receiving a termination identifier sent by the first access network side equipment;

and the first sending submodule is used for sending the termination identifier through the second resource.

In the data transmission apparatus according to the embodiment of the present application, the first transmission module further includes:

and the first processing module is used for stopping sending the service data through the second resource.

In the data transmission apparatus according to the embodiment of the present application, the service data transmission channel is a shared channel not specific to a specific terminal user, and the service data is multicast service data.

The data transmission device of the embodiment of the application acquires resource information after establishing a service data sending channel with a first access network side device, wherein the resource information comprises at least one of information of a first resource and information of a second resource; and sending a termination identifier through the first resource and/or sending a termination identifier through the second resource, thereby achieving the purpose of ending forwarding of the multicast service data aiming at a certain terminal user.

The data transmission device provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 2, and achieve the same technical effect, and for avoiding repetition, details are not repeated here.

As shown in fig. 8, an embodiment of the present application further provides a data transmission apparatus 800, which is applied to a second core network device, and includes:

a second obtaining module 801, configured to obtain resource information after controlling a first core network device and a first access network side device to establish a service data sending channel, where the resource information includes at least one of information of a first resource and information of a second resource;

a second transmission module 802, configured to send the resource information to the first core network device;

the first resource is a resource which is allocated by a first access network side device and is aimed at a terminal user, the second resource is a resource which is allocated by a second access network side device and is aimed at the terminal user, and the resource information is used for the first core network device to send a termination identifier through the first resource and/or the second resource.

The data transmission device of the embodiment of the application acquires the resource information after controlling the first core network equipment and the first access network side equipment to establish the service data sending channel; and sending the resource information to the first core network equipment so that the first core network equipment can send a termination identifier through the first resource and/or send the termination identifier through the second resource, thereby achieving the purpose of finishing forwarding the multicast service data aiming at a certain terminal user.

The data transmission device provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 3, and achieve the same technical effect, and for avoiding repetition, details are not repeated here.

As shown in fig. 9, an embodiment of the present application further provides a data transmission apparatus 900, which is applied to a first access network-side device, and includes:

a third obtaining module 901, configured to obtain, through a second core network device, information of a third resource for the terminal user after a service data sending channel is established with the first core network device;

a second processing module 902, configured to stop sending the service data through the third resource when a condition is met;

the third resource is a resource, which is allocated by the second access network side device and is for the terminal user, or a resource, which is allocated by the second core network device and is for the terminal user.

The data transmission device of the embodiment of the application further includes:

a third transmission module, configured to send information of the first resource to the second core network device;

the first resource is a resource which is allocated to the first access network side device and is aimed at the terminal user.

In the data transmission apparatus according to the embodiment of the present application, the condition is that a termination identifier is received via the first resource.

In the data transmission apparatus according to the embodiment of the present application, the condition is that a timeout event occurs.

a fourth transmission module, configured to send a termination identifier through the third resource.

After a service data sending channel is established with first core network equipment, the data transmission device of the embodiment of the application acquires information of a third resource for a terminal user through second core network equipment; and under the condition of meeting the condition, stopping sending the service data through the third resource, thereby achieving the purpose of finishing forwarding the multicast service data aiming at a certain terminal user.

The data transmission device provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 4, and achieve the same technical effect, and for avoiding repetition, details are not repeated here.

Optionally, as shown in fig. 10, an embodiment of the present application further provides a communication device 1000, which includes a processor 1001, a memory 1002, and a program or an instruction stored in the memory 1002 and executable on the processor 1001, for example, when the communication device 1000 is a first core network device, the program or the instruction is executed by the processor 1001 to implement the above-mentioned processes of the data transmission method embodiment applied to the first core network device, and the same technical effect can be achieved. When the communication device 1000 is a second core network device, the program or the instructions are executed by the processor 501 to implement the processes of the data transmission method embodiment applied to the second core network device, and the same technical effect can be achieved. When the communication device 1000 is a first access network-side device, the program or the instructions are executed by the processor 1001 to implement the above-mentioned processes of the data transmission method embodiment applied to the first access network-side device, and the same technical effects can be achieved.

Specifically, an embodiment of the present application further provides an access network side device, where the access network side device is specifically the first access network side device. As shown in fig. 11, the access network side device 1100 includes: antenna 1101, radio frequency device 1102, baseband device 1103. An antenna 1101 is connected to the radio frequency device 1102. In the uplink direction, the rf device 1102 receives information via the antenna 1101, and sends the received information to the baseband device 1103 for processing. In the downlink direction, the baseband device 1103 processes information to be transmitted and transmits the processed information to the rf device 1102, and the rf device 1102 processes the received information and transmits the processed information through the antenna 1101.

The above-mentioned band processing apparatus may be located in the baseband apparatus 1103, and the method performed by the access network side device in the above embodiment may be implemented in the baseband apparatus 1103, where the baseband apparatus 1103 includes a processor 1104 and a memory 1105.

The baseband apparatus 1103 may include at least one baseband board, for example, and a plurality of chips are disposed on the baseband board, as shown in fig. 11, where one chip, for example, the processor 1104, is connected to the memory 1105 and calls the program in the memory 1105 to perform the network device operations shown in the above method embodiments.

The baseband apparatus 1103 may further include a network interface 1106, such as a Common Public Radio Interface (CPRI), for exchanging information with the rf apparatus 1102.

Specifically, the access network side device of the embodiment of the present invention further includes: the instructions or programs stored in the memory 1105 and capable of being executed on the processor 1104, the processor 1104 invokes the instructions or programs in the memory 1105 to execute the methods executed by the modules shown in fig. 9, and achieve the same technical effects, which are not described herein for avoiding repetition.

The embodiment of the present application further provides a core network device, which includes a processor, a memory, and a program or an instruction stored in the memory and executable on the processor, where the program or the instruction, when executed by the processor, implements the steps of the data transmission method applied to the first core network device or implements the steps of the data transmission method applied to the second core network device.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the data transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement each process of the data transmission method embodiment, and can achieve the same technical effect, and the details are not repeated here to avoid repetition.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A data transmission method is applied to a first core network device, and is characterized by comprising the following steps:

2. The data transmission method according to claim 1, wherein the sending the termination identifier via the second resource includes:

and sending a termination identifier through the second resource.

3. The data transmission method according to claim 2, further comprising:

and stopping sending the service data through the second resource.

4. The data transmission method according to claim 1, wherein the service data transmission channel is a shared channel not specific to a specific end user, and the service data is multicast service data.

5. A data transmission method is applied to a second core network device, and is characterized by comprising the following steps:

sending the resource information to a first core network device;

6. The data transmission method according to claim 5, wherein the traffic data transmission channel is a shared channel not specific to a specific end user, and the traffic data is multicast traffic data.

7. A data transmission method is applied to a first access network side device, and is characterized by comprising the following steps:

8. The data transmission method according to claim 7, further comprising:

the first resource is a resource which is allocated by first access network side equipment and aims at the terminal user.

9. The data transmission method according to claim 8, wherein the condition is that a termination flag is received via the first resource.

10. The data transmission method of claim 7, wherein the condition is occurrence of a timeout event.

11. The data transmission method according to claim 7, further comprising:

and sending a termination identifier through the third resource.

12. The data transmission method according to claim 7, wherein the traffic data transmission channel is a shared channel not specific to a specific end user, and the traffic data is multicast traffic data.

13. A data transmission apparatus, applied to a first core network device, comprising:

14. The data transmission apparatus of claim 13, wherein the first transmission module comprises:

15. The data transmission apparatus of claim 14, wherein the first transmission module further comprises:

16. The data transmission apparatus according to claim 13, wherein the traffic data transmission channel is a shared channel not dedicated to a specific end user, and the traffic data is multicast traffic data.

17. A data transmission apparatus, applied to a second core network device, comprising:

18. The data transmission apparatus according to claim 17, wherein the traffic data transmission channel is a shared channel not dedicated to a specific end user, and the traffic data is multicast traffic data.

19. A data transmission apparatus, applied to a first access network side device, comprising:

20. The data transmission apparatus of claim 19, further comprising:

21. The data transmission apparatus of claim 20, wherein the condition is that a termination flag is received via the first resource.

22. The data transmission apparatus of claim 19, wherein the condition is occurrence of a timeout event.

23. The data transmission apparatus of claim 19, further comprising:

24. The data transmission apparatus according to claim 19, wherein the traffic data transmission channel is a shared channel not dedicated to a specific end user, and the traffic data is multicast traffic data.

25. A core network device comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the data transmission method of any one of claims 1 to 4 or implementing the steps of the data transmission method of any one of claims 5 to 6.

26. An access network-side device comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the data transmission method according to any one of claims 7 to 12.

27. A readable storage medium, characterized in that a program or instructions are stored thereon, which program or instructions, when executed by a processor, carry out the steps of the data transmission method according to one of claims 1 to 4 or the steps of the data transmission method according to one of claims 5 to 6 or the steps of the data transmission method according to one of claims 7 to 12.