CN115734168A

CN115734168A - Transmission method and communication device of broadcast service data

Info

Publication number: CN115734168A
Application number: CN202110996542.9A
Authority: CN
Inventors: 李秉肇; 胡小群; 邓猛; 王刚; 陈伟; 王彩娟; 赵晓飞
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2023-03-03

Abstract

The application provides a transmission method of broadcast service data and a communication device. The method comprises the following steps: the access network node determines that the first message contains a data packet of a first broadcast service according to the first message from the core network node; the access network node determines a first broadcast channel corresponding to a first broadcast service according to configuration information, wherein the configuration information is used for configuring the first broadcast channel corresponding to the first broadcast service; and the access network node sends the data packet of the first broadcast service to the terminal equipment in the first broadcast channel. The resource utilization rate can be improved.

Description

Transmission method and communication device for broadcast service data

Technical Field

The present application relates to the field of communications, and in particular, to a transmission method and a communication apparatus for broadcast service data.

Background

The broadcast service is a service that provides data to a plurality of terminal devices, for example, a service of playing a television program, live broadcasting, and the like.

At present, a multimedia broadcast multicast service (MBS) in a Long Term Evolution (LTE) system and a multicast/Multicast Broadcast Service (MBS) in a New Radio (NR) system are complex to implement, and a service establishment process of information interaction of a plurality of network nodes and a terminal device are required to receive various information of an access network node, so that the terminal device can obtain broadcast service data. For remote areas with limited transmission resources, such as forests or deserts, the complexity of the current broadcast service implementation process is higher, and the resource utilization rate is lower.

Disclosure of Invention

The application provides a transmission method of broadcast service data and a communication device, which can improve the resource utilization rate.

In a first aspect, a method for transmitting broadcast service data is provided, where the method may be performed by an access network node or a module (e.g., a chip) configured at the access network node.

The method comprises the following steps: determining that a first message contains a data packet of a first broadcast service according to the first message from a core network node; determining a first broadcast channel corresponding to a first broadcast service according to configuration information, wherein the configuration information is used for configuring the first broadcast channel corresponding to the first broadcast service; and transmitting the data packet of the first broadcast service to the terminal equipment in the first broadcast channel.

According to the scheme, the access network node can determine the transmission channel corresponding to the broadcast service based on the preconfigured information, and correspondingly, the terminal device also determines the transmission channel corresponding to the broadcast service based on the preconfigured information, so that the terminal device and the access network device can achieve consensus on the transmission channel corresponding to the broadcast service based on the preconfigured information, and the access network node and the terminal device are prevented from determining the broadcast channel for receiving the broadcast service data through multi-level information interaction. The complexity of realizing the data transmission of the broadcast service is reduced, and the resource utilization rate is improved.

With reference to the first aspect, in some implementation manners of the first aspect, the determining that the first packet includes a data packet of a first broadcast service according to the first packet from the core network node includes: determining that the first message comprises a data packet of a first broadcast service according to first port identification information in the first message; alternatively, the method comprises the following steps:

determining that the first message comprises a data packet of a broadcast service according to a first destination address and/or first port identification information in the first message, wherein the first destination address is a destination address of a message used by an access network node for receiving the data packet comprising the broadcast service; determining a data packet of a broadcast service included in the first message as a data packet of the first broadcast service according to first port identification information in the first message;

the first port identification information is identification information of a port corresponding to the first broadcast service.

According to the scheme, the core network node indicates the data packet containing the broadcast service in the message by including the first destination address and/or the first port identification information in the message, so that the broadcast service data can be transmitted between the core network node and the access network node in a routing mode, and the transmission of the broadcast service data can be realized between the core network node and the access network node without a complex broadcast service session establishment process. The complexity of broadcast service deployment can be reduced, and the deployment efficiency is improved.

With reference to the first aspect, in certain implementations of the first aspect, the first destination address and/or the first port identification information are predefined;

alternatively, the method further comprises: sending first indication information to the core network node, wherein the first indication information is used for indicating the first destination address; and/or receiving second indication information from the server, wherein the second indication information is used for indicating the first port identification information.

According to the above solution, the first destination address of the packet and/or the first port identification information for indicating that the packet sent by the core network node contains the data packet of the broadcast service may be predefined, such as predefined by a protocol, or obtained through information interaction. The access network node and the core network node can achieve consensus on the destination address and/or the port identification information of the message corresponding to the broadcast service, and the message corresponding to the broadcast service can be transmitted between the core network node and the access network node in a routing mode.

With reference to the first aspect, in certain implementations of the first aspect, the configuration information includes a correspondence between a plurality of broadcast services and a plurality of broadcast channels, where one broadcast channel of the plurality of broadcast channels is used to transmit a data packet of the broadcast service corresponding to the one broadcast channel, and the plurality of broadcast services includes the first broadcast service.

According to the scheme, the configuration information can configure the corresponding relation between the plurality of broadcast services and the plurality of broadcast channels, so that the access network node and the terminal equipment are prevented from determining the broadcast channel for receiving the broadcast service data through multi-level information interaction. The complexity of realizing the data transmission of the broadcast service is reduced, and the resource utilization rate is improved.

With reference to the first aspect, in some implementation manners of the first aspect, one broadcast channel of the multiple broadcast channels in the correspondence corresponds to one port identification information, and one piece of the port identification information is identification information of a port corresponding to one broadcast service, and the determining, according to the configuration information, a first broadcast channel corresponding to a first broadcast service includes: determining the first broadcast channel according to the configuration information and first port identification information, where the first packet includes the first port identification information, and the first port identification information is identification information of a port corresponding to the first broadcast service.

With reference to the first aspect, in some implementation manners of the first aspect, the sending the configuration information further includes configuration parameter information corresponding to the first broadcast channel, and sending a data packet of the first broadcast service to a terminal device in the first broadcast channel includes: processing the data packet of the first broadcast service according to the configuration parameter information; and sending the processed data packet of the first broadcast service to the terminal equipment through the first broadcast channel.

With reference to the first aspect, in certain implementations of the first aspect, the configuration parameter information includes one or more of the following parameter information: the configuration parameter information of a packet data convergence protocol PDCP layer, the configuration parameter information of a radio link control RLC layer or a radio network temporary identifier RNTI corresponding to the first broadcast channel.

According to the above solution, the configuration information includes relevant parameter information of the broadcast channel, so that after the access network node determines the first broadcast channel corresponding to the first broadcast service, the access network node may process the data according to the configuration parameter information, for example, encapsulate a data packet of the first broadcast service. Correspondingly, the terminal device is configured with the same configuration parameter information, and the terminal device decapsulates the received data packet with the encapsulation based on the configuration parameter information. The data packet of the broadcast service can be transmitted between the access network node and the terminal equipment according to the configuration information. The method and the device avoid the situation that the access network node and the terminal equipment determine the broadcast channel for receiving the broadcast service data through multi-level information interaction. The complexity of realizing the data transmission of the broadcast service is reduced, and the resource utilization rate is improved.

With reference to the first aspect, in certain implementations of the first aspect, the configuration information is predefined.

According to the above scheme, the content of the configuration information may be predefined, for example, the content of the configuration information is specified by a protocol, and the terminal device and the access network node are configured with the configuration information at factory shipment, so that the transmission of the broadcast service data is performed under the condition of agreement.

With reference to the first aspect, in some implementations of the first aspect, the sending, to a terminal device, a data packet of the first broadcast service on the first broadcast channel includes: and sending a second message to the terminal device in the first broadcast channel, where the second message includes a data packet of the first broadcast service, where the second message is the first message, or the second message is a message whose destination address is a second destination address, and the second destination address is a destination address of a message used by the terminal device to receive the data packet including the broadcast service.

With reference to the first aspect, in some implementation manners of the first aspect, the destination address in the second message is a second destination address, and the second message is obtained by replacing the first destination address in the first message with the second destination address.

According to the scheme, the access network node can send the first message from the core network node to the terminal equipment through the first broadcast channel, or the access network node can replace the destination address in the first message with the destination address of the terminal equipment for receiving the broadcast service data, and the access network node does not need to perform other disassembling operations on the first message, so that the complexity of broadcast service data transmission and the transmission delay are reduced.

With reference to the first aspect, in certain implementations of the first aspect, the method further includes: sending third indication information, wherein the third indication information is used for indicating a public broadcast channel and receiving a third message from the core network node, and the third message comprises a data packet of a second broadcast service; if the configuration information does not configure the broadcast channel corresponding to the second broadcast service, sending fourth indication information, where the fourth indication information is used to indicate that the public broadcast channel is scheduled to transmit a data packet of the second broadcast service; and transmitting the data packet of the second broadcast service in the public broadcast channel.

According to the scheme, the broadcast channels corresponding to part of the broadcast services can be preconfigured between the access network node and the terminal equipment, for example, the preconfigured information can include the broadcast channels corresponding to key broadcast services to be received by most of the terminal equipment, and other broadcast services can share the common broadcast channel for transmission, so that on one hand, flexible opening and closing of non-key broadcast services can be realized, and on the other hand, storage overhead caused by the preconfigured broadcast channels corresponding to each broadcast service of the access network node and the terminal equipment can be reduced.

In a second aspect, a method for transmitting broadcast service data is provided, where the method may be performed by a terminal device or a module (e.g., a chip) configured in the terminal device.

The method comprises the following steps: determining a first broadcast channel corresponding to a first broadcast service according to configuration information, wherein the configuration information is used for configuring the first broadcast channel corresponding to the first broadcast service; and receiving data packets of the first broadcast service from the access network node on the first broadcast channel.

According to the scheme, the terminal device can determine the transmission channel corresponding to the broadcast service based on the preconfigured information, and correspondingly, the access network node also determines the transmission channel corresponding to the broadcast service based on the preconfigured information, so that the terminal device and the access network device can achieve consensus on the transmission channel corresponding to the broadcast service based on the preconfigured information, and the access network node and the terminal device are prevented from determining the broadcast channel for receiving the broadcast service data through multi-level information interaction. The complexity of realizing the data transmission of the broadcast service is reduced, and the resource utilization rate is improved.

With reference to the second aspect, in some implementations of the second aspect, the configuration information includes a correspondence between a plurality of broadcast services and a plurality of broadcast channels, where one broadcast channel of the plurality of broadcast channels is used to transmit a data packet of a broadcast service corresponding to the one broadcast channel, and the plurality of broadcast services includes the first broadcast service.

With reference to the second aspect, in some implementation manners of the second aspect, the determining, in the correspondence, a broadcast channel in the multiple broadcast channels corresponds to a port identification information, where one of the port identification information is an identification information of a port corresponding to a broadcast service, and the determining, according to the configuration information, a first broadcast channel corresponding to a first broadcast service includes: and determining the first broadcast channel according to the configuration information and first port identification information, wherein the first port identification information is identification information of a port corresponding to the first broadcast service.

With reference to the second aspect, in certain implementations of the second aspect, the receiving, at the first broadcast channel, a data packet of a first broadcast service from an access network node includes: receiving a second message from the access network node in the first broadcast channel, where the second message includes a data packet of the first broadcast service, and the second message includes a first destination address or a second destination address, where the first destination address is a destination address used by the access network node to receive a message including the data packet of the broadcast service, and the second destination address is a destination address used by a terminal device to receive a message including the data packet of the broadcast service.

With reference to the second aspect, in some implementations of the second aspect, the configuration information further includes configuration parameter information corresponding to the first broadcast channel, and the method further includes: and processing the data packet of the first broadcast service according to the configuration parameter information.

With reference to the second aspect, in some implementations of the second aspect, the configuration parameter information includes one or more of the following parameter information: the configuration parameter information of a PDCP layer, the configuration parameter information of a RLC layer of radio link control or a Radio Network Temporary Identifier (RNTI) corresponding to the first broadcast channel.

With reference to the second aspect, in certain implementations of the second aspect, the configuration information is predefined.

With reference to the second aspect, in certain implementations of the second aspect, the method further includes: receiving third indication information from the access network node at a control channel, wherein the third indication information is used for indicating a public broadcast channel, and receiving fourth indication information if a broadcast channel corresponding to a second broadcast service is not configured in the configuration information, wherein the fourth indication information is used for indicating that the public broadcast channel is scheduled to transmit a data packet of the second broadcast service; and receiving the data packet of the second broadcast service from the access network node on the public broadcast channel according to the fourth indication information.

With reference to the second aspect, in some implementations of the second aspect, the determining, according to the configuration information, a first broadcast channel corresponding to a first broadcast service includes: acquiring a user operation instruction, wherein the user operation instruction is used for indicating to acquire a data packet of the first broadcast service; and responding to the user operation instruction, and determining a first broadcast channel corresponding to the first broadcast service according to the configuration information.

In a third aspect, a method for transmitting broadcast service data is provided, where the method may be performed by a core network node or a module (e.g., a chip) configured at the core network node.

The method comprises the following steps: determining that a fourth message contains a data packet of the broadcast service according to one or more of a first source address, a third destination address or port identification information corresponding to the broadcast service in the fourth message, wherein the fourth message is a received message from a server; and sending a first message to a first access network node, wherein a destination address of the first message is a first destination address, the first destination address is a destination address of a message used by the first access network node for receiving a data packet containing a broadcast service, and the first message is obtained by replacing the third destination address in the fourth message with the first destination address.

According to the scheme, the server, the core network node and the access network node can indicate the data packet containing the broadcast service in the message through the message address and/or the port identification information, so that the broadcast service data can be transmitted among the network nodes in a routing manner, and the transmission of the broadcast service data among the server, the core network node and the access network node can be realized without a complicated broadcast service session establishment process. The complexity of broadcast service deployment can be reduced, and the deployment efficiency is improved.

With reference to the third aspect, in certain implementations of the third aspect, the method further includes: and sending fifth indication information to the server, where the fifth indication information is used to indicate the third destination address, where the third destination address is a destination address used by the core network node to receive a packet including a data packet of a broadcast service.

With reference to the third aspect, in certain implementations of the third aspect, the first source address, the third destination address, or the port identification information is predefined.

With reference to the third aspect, in certain implementations of the third aspect, the first destination address is predefined; or the method further comprises: first indication information is received from the first access network node, the first indication information indicating the first destination address.

With reference to the third aspect, in certain implementations of the third aspect, the method further includes: copying the fourth message to obtain a backup message, and replacing the first destination address in the backup message with a fourth destination address to obtain a third message, wherein the fourth destination address is a destination address of a message used by a second access network node for receiving a data packet containing a broadcast service; and sending the third message to the second access network node.

In a fourth aspect, a communication device is provided, which in one design may include a module that performs a one-to-one correspondence to the method/operation/step/action described in the first aspect, where the module may be a hardware circuit, a software circuit, or a combination of a hardware circuit and a software circuit. In another design, the apparatus includes: a processing unit, configured to determine, according to a first packet from a core network node, that the first packet includes a data packet of a first broadcast service; the processing unit is further configured to determine a first broadcast channel corresponding to a first broadcast service according to configuration information, where the configuration information is used to configure the first broadcast channel corresponding to the first broadcast service; and the transceiving unit is used for sending the data packet of the first broadcast service to the terminal equipment in the first broadcast channel.

With reference to the fourth aspect, in some implementations of the fourth aspect, the processing unit is specifically configured to:

determining that the first message comprises a data packet of a first broadcast service according to first port identification information in the first message; or,

With reference to the fourth aspect, in certain implementations of the fourth aspect, the first destination address and/or the first port identification information is predefined;

or the transceiver unit is further configured to send first indication information to the core network node, where the first indication information is used to indicate the first destination address, and/or the transceiver unit is further configured to receive second indication information from a server, where the second indication information is used to indicate the first port identification information.

With reference to the fourth aspect, in some implementations of the fourth aspect, the configuration information includes a correspondence between a plurality of broadcast services and a plurality of broadcast channels, where one broadcast channel of the plurality of broadcast channels is used to transmit a data packet of a broadcast service corresponding to the one broadcast channel, and the plurality of broadcast services include the first broadcast service.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, one broadcast channel of the multiple broadcast channels in the correspondence corresponds to a port identification information, and one of the port identification information is an identification information of a port corresponding to a broadcast service, and the processing unit is specifically configured to determine the first broadcast channel according to the configuration information and a first port identification information, where the first packet includes the first port identification information, and the first port identification information is an identification information of a port corresponding to the first broadcast service.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the configuration information further includes configuration parameter information corresponding to the first broadcast channel, and the processing unit is further configured to process the data packet of the first broadcast service according to the configuration parameter information; the transceiving unit is specifically configured to send the processed data packet of the first broadcast service to the terminal device through the first broadcast channel.

With reference to the fourth aspect, in some implementations of the fourth aspect, the configuration parameter information includes one or more of the following parameter information: the configuration parameter information of a PDCP layer, the configuration parameter information of a RLC layer of radio link control or a Radio Network Temporary Identifier (RNTI) corresponding to the first broadcast channel.

With reference to the fourth aspect, in certain implementations of the fourth aspect, the configuration information is predefined.

With reference to the fourth aspect, in some implementations of the fourth aspect, the transceiver unit is specifically configured to send a second packet to the terminal device in the first broadcast channel, where the second packet includes a data packet of the first broadcast service, where the second packet is the first packet, or the second packet is a packet whose destination address is a second destination address, and the second destination address is a destination address of a packet that includes a data packet of a broadcast service and is used for being received by the terminal device.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the destination address in the second message is a second destination address, and the second message is obtained by replacing the first destination address in the first message with the second destination address.

With reference to the fourth aspect, in some implementations of the fourth aspect, the transceiving unit is further configured to send third indication information on the control channel, where the third indication information is used to indicate a common broadcast channel; the transceiver unit is further configured to receive a third packet from the core network node, where the third packet includes a data packet of a second broadcast service; the processing unit is further configured to determine that the configuration information does not configure the broadcast channel corresponding to the second broadcast service; the transceiving unit is further configured to send fourth indication information, where the fourth indication information is used to indicate that the common broadcast channel is scheduled to transmit a data packet of the second broadcast service; the transceiving unit is further configured to transmit a data packet of the second broadcast service on the common broadcast channel.

In a fifth aspect, a communication device is provided, which in one design may include a module corresponding to one to perform the method/operation/step/action described in the second aspect, where the module may be a hardware circuit, a software circuit, or a combination of a hardware circuit and a software circuit. In another design, the apparatus includes: a processing unit, configured to determine a first broadcast channel corresponding to a first broadcast service according to configuration information, where the configuration information is used to configure the first broadcast channel corresponding to the first broadcast service; and the transceiving unit is used for receiving the data packet of the first broadcast service from the access network node in the first broadcast channel.

With reference to the fifth aspect, in certain implementations of the fifth aspect, the configuration information includes a correspondence between a plurality of broadcast services and a plurality of broadcast channels, one broadcast channel of the plurality of broadcast channels is used to transmit a data packet of the broadcast service corresponding to the one broadcast channel, and the plurality of broadcast services include the first broadcast service.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, one broadcast channel of the multiple broadcast channels in the correspondence corresponds to one port identification information, and one piece of the port identification information is identification information of a port corresponding to one broadcast service, and the processing unit is specifically configured to determine the first broadcast channel according to the configuration information and the first port identification information, where the first port identification information is identification information of a port corresponding to the first broadcast service.

With reference to the fifth aspect, in certain implementations of the fifth aspect, the transceiver unit is specifically configured to receive, in the first broadcast channel, a second packet from the access network node, where the second packet includes a first destination address or a second destination address, where the first destination address is a destination address used by the access network node to receive a packet including a data packet of a broadcast service, and the second destination address is a destination address used by a terminal device to receive a packet including a data packet of a broadcast service.

With reference to the fifth aspect, in some implementations of the fifth aspect, the configuration information further includes configuration parameter information corresponding to the first broadcast channel, and the processing unit is further configured to process the data packet of the first broadcast service according to the configuration parameter information.

With reference to the fifth aspect, in some implementations of the fifth aspect, the configuration parameter information includes one or more of the following parameter information: the configuration parameter information of a PDCP layer, the configuration parameter information of a RLC layer of radio link control or a Radio Network Temporary Identifier (RNTI) corresponding to the first broadcast channel.

With reference to the fifth aspect, in certain implementations of the fifth aspect, the configuration information is predefined.

With reference to the fifth aspect, in certain implementations of the fifth aspect, the transceiving unit is further configured to receive third indication information from the access network node on a control channel, where the third indication information is used to indicate a common broadcast channel; the processing unit is further configured to determine that the configuration information does not configure a broadcast channel corresponding to the second broadcast service; the transceiving unit is further configured to receive fourth indication information, where the fourth indication information is used to indicate that the common broadcast channel is scheduled to transmit a data packet of the second broadcast service; the transceiving unit is configured to receive, according to the fourth indication information, a data packet of the second broadcast service from the access network node on the common broadcast channel.

With reference to the fifth aspect, in some implementations of the fifth aspect, the obtaining unit is configured to obtain a user operation instruction, where the user operation instruction is used to instruct to obtain the data packet of the first broadcast service; the processing unit is specifically configured to determine, in response to the user operation instruction, a first broadcast channel corresponding to the first broadcast service according to the configuration information.

In a sixth aspect, a communication apparatus is provided, and in a design, the apparatus may include a module that performs one-to-one correspondence to the method/operation/step/action described in the third aspect, where the module may be a hardware circuit, a software circuit, or a combination of a hardware circuit and a software circuit. In another design, the apparatus includes: the processing unit is configured to determine that the fourth message includes a data packet of a broadcast service according to one or more of a first source address, a third destination address, or port identification information corresponding to the broadcast service in the fourth message, where the fourth message is a received message from a server; a transceiving unit, configured to send a first packet to a first access network node, where a destination address of the first packet is a first destination address, the first destination address is a destination address of a packet that is used by the first access network node to receive a data packet including a broadcast service, and the first packet is obtained by replacing the third destination address in the fourth packet with the first destination address.

With reference to the sixth aspect, in certain implementations of the sixth aspect, the transceiver unit is further configured to send fifth indication information to the server, where the fifth indication information is used to indicate the third destination address, and the third destination address is a destination address of a core network node for receiving a packet including a data packet of a broadcast service.

With reference to the sixth aspect, in certain implementations of the sixth aspect, the first source address, the third destination address, or the port identification information is predefined.

With reference to the sixth aspect, in certain implementations of the sixth aspect, the first destination address is predefined;

or the transceiving unit is further configured to receive first indication information from the first access network node, where the first indication information is used to indicate the first destination address.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the processing unit is further configured to copy the fourth packet to obtain a backup packet, and replace the first destination address in the backup packet with a fourth destination address to obtain a third packet, where the fourth destination address is a destination address used by the second access network node to receive a packet including a data packet of a broadcast service; the transceiver unit is further configured to send the third packet to the second access network node.

In a seventh aspect, a communications apparatus is provided that includes a processor. The processor may implement the method of the first aspect as well as any one of the possible implementations of the first aspect. Optionally, the communication device further comprises a memory, and the processor is coupled to the memory and configured to execute the instructions in the memory to implement the method in any one of the possible implementations of the first aspect and the first aspect. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface. In the embodiment of the present application, the communication interface may be a transceiver, a pin, a circuit, a bus, a module, or other types of communication interfaces, without limitation.

In one implementation, the communication device is an access network node. When the communication device is an access network node, the communication interface may be a transceiver, or an input/output interface.

In another implementation, the communication device is a chip configured in an access network node. When the communication device is a chip configured in an access network node, the communication interface may be an input/output interface and the processor may be a logic circuit.

Alternatively, the transceiver may be a transmit-receive circuit. Alternatively, the input/output interface may be an input/output circuit.

In an eighth aspect, a communications apparatus is provided that includes a processor. The processor may implement the method of the second aspect described above and any one of the possible implementations of the second aspect. Optionally, the communication device further comprises a memory, and the processor is coupled to the memory and configured to execute the instructions in the memory to implement the method in any one of the possible implementations of the second aspect and the second aspect. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface. In the embodiment of the present application, the communication interface may be a transceiver, a pin, a circuit, a bus, a module, or other types of communication interfaces, without limitation.

In one implementation, the communication device is a terminal device. When the communication device is a terminal device, the communication interface may be a transceiver, or an input/output interface.

In another implementation, the communication device is a chip configured in the terminal device. When the communication device is a chip configured in a terminal device, the communication interface may be an input/output interface, and the processor may be a logic circuit.

In a ninth aspect, a communications apparatus is provided that includes a processor. The processor may implement the method of any one of the above third aspect and possible implementations of the third aspect. Optionally, the communication device further comprises a memory, and the processor is coupled to the memory and configured to execute the instructions in the memory to implement the method in any possible implementation manner of the third aspect and the third aspect. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface. In the embodiment of the present application, the communication interface may be a transceiver, a pin, a circuit, a bus, a module, or other types of communication interfaces, and is not limited.

In one implementation, the communication device is a core network node. When the communication device is a core network node, the communication interface may be a transceiver, or an input/output interface.

In another implementation, the communication device is a chip configured in a core network node. When the communication device is a chip configured in a core network node, the communication interface may be an input/output interface, and the processor may be a logic circuit.

In a tenth aspect, a processor is provided, comprising: input circuit, output circuit and processing circuit. The processing circuit is configured to receive a signal via the input circuit and transmit a signal via the output circuit, so that the processor performs the method of the first, second, or third aspect and any one of the possible implementations of the first, second, or third aspect.

In an eleventh aspect, there is provided a computer program product comprising: a computer program (which may also be referred to as code, or instructions), which when executed, causes a computer to perform the method of any of the possible implementations of the first, second or third aspect described above.

In a twelfth aspect, a computer-readable storage medium is provided, which stores a computer program (which may also be referred to as code or instructions) that, when executed on a computer, causes the computer to perform the method of any of the above-mentioned first, second or third aspects and possible implementations of the first, second or third aspects.

In a thirteenth aspect, there is provided a communication system comprising at least one of the aforementioned access network nodes and at least one of the aforementioned terminal devices; or comprises at least one of the aforementioned access network nodes and at least one of the aforementioned core network nodes; or, comprising at least one of the aforementioned core network nodes, at least one of the aforementioned access network nodes and at least one of the aforementioned terminal devices.

Drawings

Fig. 1 is a schematic architecture of a communication system suitable for use in embodiments of the present application;

fig. 2 is a schematic diagram of an SC-PTM transmission scheme provided herein;

fig. 3 is a schematic flow chart of an MBS service establishment procedure provided in the present application;

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

fig. 5 is a schematic diagram of a transmission method of broadcast service data according to an embodiment of the present application;

fig. 6 is a schematic block diagram of a communication device provided by an embodiment of the present application;

fig. 7 is a schematic structural diagram of a terminal device provided in an embodiment of the present application;

fig. 8 is a schematic structural diagram of an access network device provided in an embodiment of the present application;

fig. 9 is a schematic structural diagram of a core network device according to an embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, 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 embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

The terms "first," "second," and the like in the description and in the claims, and in the drawings, of the embodiments of the 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 may be interchanged under appropriate circumstances such that embodiments of the application described herein may be implemented in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, a Universal Mobile Telecommunications System (UMTS), a universal microwave access interoperability for microwave access (WiMAX) communication system, a fifth generation (5 g) system or a New Radio (NR) system, and future communication systems, such as a sixth generation mobile communication system. Or a system in which a plurality of communication systems are integrated, and the present application is not limited to this.

Fig. 1 is a schematic configuration diagram of a communication system suitable for use in an embodiment of the present application.

As shown in fig. 1, the communication system may comprise at least one core network node, such as core network node 101 shown in fig. 1; the communication system may further comprise at least one access network node, such as the access network node 102 shown in fig. 1; the communication system may further comprise at least one terminal device, such as

terminal devices

103, 104 shown in fig. 1. The

terminal devices

103, 104 may be mobile or stationary. The core network node 101 may receive data from the server and send it to the terminal device via the access network node 101. Optionally, the communication system may comprise a server. Access network node 102 may communicate with at least one terminal device (e.g., terminal device 103 and/or terminal device 104) via a wireless communication link connection. The access network node 102 may transmit data from the core network node to the terminal device over the wireless communication link. The data may be broadcast service data. The node in the communication system can apply the transmission scheme of the broadcast service data provided by the embodiment of the application, and the complexity of broadcast service data transmission is reduced.

The terminal device in the embodiments of the present application may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device in the embodiment of the present application may be a mobile phone, a tablet computer, a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in remote medical care, a wireless terminal in a smart grid, a wireless terminal in transportation security, a wireless terminal in a smart city, a wireless terminal in a smart home, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with a wireless communication function, a computing device, a vehicle-mounted device, a wearable device, a terminal device in a 5G network, or a device in a public land mobile communication network (PLMN) terminal in future evolution. It should be understood that the present application is not limited to the particular form of the terminal device.

The access network node in the embodiment of the present application may be a device having a wireless transceiving function in the access network. The apparatus includes, but is not limited to: a base station, an evolved node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a home base station (e.g., home evolved node B, or home node B, HNB), a Base Band Unit (BBU), an Access Point (AP) in a wireless fidelity (WIFI) system, a wireless relay node, a wireless backhaul node, a Transmission Point (TP), or a Transmission and Reception Point (TRP), etc. The device may also be a network node forming a gNB or a transmission point, such as a baseband unit (BBU), or a Distributed Unit (DU), etc. It should be understood that the present application is not limited to the particular form of network device.

The core network node in the embodiment of the present application may be a node responsible for data routing and forwarding related functions, and may correspond to different devices in different communication systems. For example, in a 3G mobile communication system, a core network Node may correspond to a Serving GPRS Support Node (SGSN) of a General Packet Radio Service (GPRS) and/or a Gateway GPRS Support Node (GGSN) of a GPRS; the Mobile Management Entity (MME) and/or the serving gateway (S-GW) may be corresponded in the 4G mobile communication system; in the 5G mobile communication system, an access and mobility management Function (AMF) node, a Session Management Function (SMF) node, or a User Plane Function (UPF) node may be accessed correspondingly.

A multimedia broadcast multicast service (MBS) in an LTE system or a multicast broadcast multicast service (MBS) in an NR system is mainly applicable to services for multiple UEs, such as television program broadcasting, live broadcasting, and the like. The multicast transmission technology refers to a technology for transmitting MBS service data to a plurality of UEs simultaneously through a base station. The MBS service may be sent to the UE by the network device in a unicast (unicast) manner by establishing a bearer (bearer) dedicated to the UE for the UE, or may be sent to the UE in a multicast (multicast) manner by establishing a bearer dedicated to the MBS service. When a large amount of UE needs to receive a certain MBS service, the service is sent in a unicast mode, and special load bearing needs to be established for the large amount of UE, so that resources are consumed; if the service is sent to the UE in a multicast mode, only the special bearer for the MBS needs to be established, and all the UEs interested in the service can receive the MBS through the bearer, so that the air interface resources are saved, the frequency spectrum utilization rate is improved, and the transmission efficiency is improved.

The single cell point to multi-point (SC-PTM) multicast service and MBS service establishment procedures are described below.

1. SC-PTM multicast service

The SC-PTM technology is a technology for simultaneously transmitting the same service data to a plurality of UEs by using shared data information, a group of UEs receiving the same service data use the same downlink configuration to receive the service data, and a communication link does not need to be respectively established for each UE. As shown in fig. 2 below, an SC-PTM has a single-cell multicast control channel (SC-MCCH) and a single-cell multicast transport channel (SC-MTCH), and a terminal device acquires information related to receiving the MCCH by receiving a System Information Block (SIB), and receives the MCCH according to the information related to receiving the MCCH. The MCCH includes related information for receiving the SC-PTM service data, for example, the related information for receiving the SC-PTM service data may include, but is not limited to, a mapping relationship between a Temporary Mobile Group Identity (TMGI) and a radio network temporary identity (G-RNTI), a Logical Channel Identity (LCID), resource location information of a transmission opportunity of the SC-PTM service data, and the like.

In the SC-PTM technology, a cell identifies service data sent to a plurality of UEs through G-RNTIs, and each G-RNTI can be associated with one MBMS service. The terminal equipment receives SC-PTM transmission resources which are dispatched by DCI carried by a Physical Downlink Control Channel (PDCCH) through detecting the PDCCH carrying the G-RNTI.

2. MBS service establishment procedure

Fig. 3 is a schematic flow chart of the current MBS service establishment process. The MBS setup procedure includes, but is not limited to, the following steps:

1. a Core Network (CN) sends an MBMS session start request to a multi-cell/Multicast Coordination Entity (MCE) to initiate a service establishment procedure. The MBMS session start request may include a cell list corresponding to an area information (e.g., a cell list) that may carry a service identifier and a service to be broadcasted, and a quality of service requirement. The MCE is a logic node in the wireless access network and is responsible for admission control, wireless resource allocation and transmission parameter allocation of cells in the MBS region and the like.

And 1a, the MCE sends an MBMS recovery starting response to the CN and responds to a service establishment process initiated by the CN.

And 2, the MCE determines to adopt an SC-PTM transmission mode for the MBMS bearing.

The mce sends an MBMS session start request to the eNB. The MBMS session start request may include a cell list corresponding to an area information (e.g., a cell list) that may carry a service identifier and a service to be broadcasted, and a quality of service requirement.

And 3a, the eNB sends the MBMS session response to the MCE.

In the above process, a CN-to-bs data transmission channel is allocated, for example, the data transmission channel may be a General Packet Radio Service (GPRS) tunneling protocol-user interface (GTP-U) channel. The CN to base station data transmission channel is allocated well may mean that the channel address and the channel number of the GTP-U channel for data transmission are allocated well.

And 4, after receiving the service establishment request, the eNB informs the UE of the arrival of the service through the SC-MCCH and sends the MTCH configuration information to the UE. For example, the SC-MCCH may carry a TMGI corresponding to a service, a G-RNTI corresponding to the TMGI, information such as Discontinuous Reception (DRX) parameters, and layer 2 configuration information of the MTCH.

5. And the core network sends the data to the eNB from the established GTP-U channel.

And 6, the eNB sends the MBMS user data to the UE through the MTCH.

In summary, currently, broadcast service (or multicast service) data can be transmitted from a server to a terminal device, and the broadcast service (or multicast service) data can be realized only by information interaction of a plurality of network nodes in an establishment process and by receiving a plurality of information of access network nodes by the terminal device. The advantage of this complex procedure is that it can support complex application scenarios, these procedures can support more flexible resource allocation, for example, there are more types of MBS services, and the QoS requirements and/or sending areas of these MBS services are different, so that the transmission resources of the base station can be dynamically used to send different types of MBS service data to the UE through MCCH scheduling. However, the deployment requires a long development time, a large workload, and a low deployment efficiency, which cannot meet the demand of timely deployment in remote areas, and the resource utilization rate of the current transmission mode of the broadcast service is low.

For remote areas, such as forests or deserts, the requirement on the richness of MBS service types is not high, and only some safety type (such as weather early warning information) or news type (such as real-time headlines) broadcast service data need to be received, so that the application provides that the network and the terminal equipment can achieve consensus on the transmission channel of the broadcast service based on the preconfigured information, and the network and the terminal equipment can be prevented from determining the broadcast channel for receiving the broadcast service data through information interaction. The complexity of realizing the broadcast service is reduced, and the resource utilization rate is improved.

The following describes a transmission method of broadcast service data provided in an embodiment of the present application with reference to the accompanying drawings.

Fig. 4 is a schematic flow chart of a transmission method 400 of broadcast service data according to an embodiment of the present application.

S401, the server sends a fourth message to the core network node.

Accordingly, the core network node receives the fourth message from the server.

Optionally, one or more of the first source address, the third destination address, or the port identification information corresponding to the broadcast service in the fourth packet is used to indicate that the fourth packet includes a data packet of the broadcast service.

Wherein the fourth packet includes a data packet of the first broadcast service. The port identification information corresponding to the broadcast service in the fourth packet includes first port identification information, and the first port identification information is identification information of a port corresponding to the first broadcast service. That is, when the fourth packet includes the first port identification information, the fourth packet includes a packet of the first broadcast service.

S402, the core network node determines the fourth message as a message corresponding to the broadcast service according to the fourth message.

The core network node may determine that the fourth packet includes a data packet of the broadcast service according to one or more of the first source address, the third destination address, or port identification information corresponding to the broadcast service.

Optionally, the fourth packet is an Internet Protocol (IP) packet. The first source address and the third destination address are IP addresses.

It should be noted that the broadcast service in this embodiment refers to a service for multiple terminal devices, and may also be a multicast service, that is, a data packet of the same broadcast service that is simultaneously sent to multiple terminal devices by one access network node, and the multiple terminal devices receive the data packet of the broadcast service simultaneously and process the data packet of the broadcast service individually. On the network side, the messages of the data packets containing the broadcast services can be transmitted among the server, the core network node and the access network node without adopting a broadcast mode. For example, the server and the core network may send the fourth packet in a one-to-one manner. For example, the fourth packet may be transmitted between the core network node and the server by using an IP unicast technique in an IP transport network. The IP address (e.g., the destination address and/or the source address) used by the core network node to receive the packet containing the data packet of the broadcast service is not an IP broadcast address, and may be an IP unicast address corresponding to the core network node. In a specific implementation, if the core network node determines that the fourth packet is a packet including a broadcast service according to an IP address (such as the first source address and/or the third destination address), it may be understood that the IP address is used to indicate that the packet from the server includes a packet of a broadcast service for multiple terminal devices.

In this embodiment, a packet including a data packet of a broadcast service may be referred to as a packet corresponding to the broadcast service.

For example, the third destination address is used to indicate a packet corresponding to the broadcast service, and the server sets the destination address of the packet corresponding to the broadcast service sent to the core network node as the third destination address, so that after receiving the packet from the server, the core network node determines whether the packet corresponds to the broadcast service according to whether the destination address is the third destination address. And the core network node receives the fourth message from the server, and determines that the fourth message is a message corresponding to the broadcast service according to the destination address in the fourth message as a third destination address.

In one embodiment, the third destination address may be a destination address of a packet corresponding to a predefined broadcast service.

The third destination address may be preconfigured in the server and the core network node, and the server and the core network node may determine, according to the preconfigured information, the destination address of the packet corresponding to the broadcast service as the third destination address. And when the server sends the message corresponding to the broadcast service, setting the destination address as the third destination address. And the core network node determines that the message is a message corresponding to the broadcast service according to the fact that the destination address of the message from the server is a third destination address.

In another embodiment, the server may send, to the core network node, indication information a, where the indication information a is used to indicate that a destination address of a packet corresponding to the broadcast service sent by the server is a third destination address.

Correspondingly, the core network node receives the indication information a, and determines that the message with the destination address being the third destination address sent by the server is the message corresponding to the broadcast service according to the indication information a. The server and the core network node can achieve consensus on the destination address corresponding to the message corresponding to the broadcast service.

In another embodiment, the core network node may send fifth indication information to the server, where the fifth indication information is used to indicate that a destination address of the core network node receiving the packet corresponding to the broadcast service is a third destination address.

Correspondingly, the server receives the fifth indication information from the core network node, and determines that the destination address of the packet corresponding to the broadcast service received by the core network node is the third destination address according to the fifth indication information. The server and the core network node can achieve consensus on the destination address corresponding to the broadcast message.

Optionally, the destination address of the packet corresponding to the broadcast service may belong to an address range, where the address range includes the third destination address, and after receiving a packet from the server, the core network node may determine that the packet is a packet corresponding to the broadcast service if the destination address of the packet belongs to the address range of the packet corresponding to the broadcast service.

For example, the IP address range xxx.xxx.000 to xxx.xxx.255 may be specified as the destination address range of the message corresponding to the broadcast service. After receiving the fourth packet from the server, the core network node may determine that the fourth packet is a packet corresponding to a broadcast service, where a destination address of the fourth packet is xxx.xxx.098 (that is, an example of the third destination address). It should be understood that the destination address range is only an example, and the application is not limited thereto.

For another example, the third destination address and the port identification information corresponding to the broadcast service may be used to indicate that the fourth packet is a packet corresponding to the broadcast service. When the server sends the data packet corresponding to the first broadcast service to the core network node through a fourth packet, the destination address of the fourth packet is the third destination address, and the fourth packet includes the first port identification information, that is, the identification information of the port corresponding to the first broadcast service. And the core network node receives the fourth message from the server, and determines that the fourth message is a message corresponding to the broadcast service according to the third destination address and the first port identification information in the fourth message.

Alternatively, the port identification information corresponding to the broadcast service may be predefined or notified to the core network node by the server.

For another example, the first source address may be used to indicate that the fourth packet is a packet corresponding to a broadcast service. Optionally, the first source address may be a source address of a packet corresponding to a predefined broadcast service. Or, the server may send, to the core network node, indication information B for indicating that a source address of a packet corresponding to the broadcast service sent by the server is the first source address. Or, the core network node may send, to the server, indication information C, where the indication information C is used to indicate that a source address, used by the core network node to receive the packet corresponding to the broadcast service, is the first source address.

Optionally, the source address of the packet corresponding to the broadcast service may belong to an address range, where the address range includes the first source address, and after receiving a packet from the server, the core network node may determine that the packet is a packet corresponding to the broadcast service if the source address of the packet belongs to the address range of the packet corresponding to the broadcast service.

S403, the core network node sends the first packet to the first access network node.

Accordingly, the first access network node receives the first packet from the core network node.

And after receiving the fourth message from the server, the core network node determines at least one access network node which needs to receive the data packet of the broadcast service, wherein the at least one access network node comprises the first access network node. The core network node sends a message to each access network node in the at least one access network node, wherein each message comprises a data packet of the first broadcast service, and each message comprises a destination address of a message corresponding to the received broadcast service of the corresponding access network node. The message received by the first access network node is a first message. The destination address in the first message is a first destination address. The first destination address is a destination address corresponding to the first access network node.

In an embodiment, after receiving the fourth packet, the core network node may determine a destination address of each access network node in the at least one access network node that needs to receive the packet corresponding to the broadcast service.

The first destination address may be a destination address used by the first access network node for receiving the message.

In an example, each access network node of the at least one access network node may send indication information to the core network node, respectively, where the indication information is used for a corresponding access network node to receive a destination address of the packet, that is, a destination address corresponding to the access network node. For example, the first access network node may send, to the core network node, first indication information indicating a first destination address, which is used by the first access network node to receive a packet corresponding to the broadcast service. The core network node may determine, according to the first indication information, that the destination address corresponding to the first access network node is the first destination address.

In another example, the core network node may obtain a destination address corresponding to each of the at least one access network node from other nodes. For example, the core network node is a UPF node, and the UPF node may obtain, from other core network nodes, a destination address of the at least one access network node for receiving a packet corresponding to the broadcast service. For example, the other core network nodes may be SMF nodes, operation Administration and Maintenance (OAM) nodes, but the present application is not limited thereto.

The core network node determines a destination address, used for receiving the message corresponding to the broadcast service, of each access network node which needs to receive the message corresponding to the broadcast service, then generates a message corresponding to the broadcast service corresponding to the at least one access network node according to the fourth message, and sends the message corresponding to the corresponding broadcast service to each access network node in the at least one access network node. For example, a core network node sends a first packet to a first access network node, where the first packet includes a data packet of a first broadcast service, and a destination address of the first packet is a first destination address, and the first destination address is a destination address corresponding to the first access network node. And the core network node sends a third message to a second access network node, wherein the third message comprises a data packet of the first broadcast service, the destination address of the third message is a fourth destination address, and the fourth destination address is the destination address corresponding to the second access network node.

Optionally, multiple access network nodes need to receive a packet corresponding to the broadcast service. The core network node copies the fourth message to obtain a plurality of fourth messages (including the fourth message received from the server and the backup message obtained by copying the fourth message) with the same number as the plurality of access network nodes. And the core network node replaces the destination address of each fourth message in the plurality of fourth messages to obtain a plurality of messages corresponding to the broadcast service, wherein each message in the plurality of messages comprises the destination address corresponding to the access network node for receiving the message.

For example, as shown in fig. 5, the server sends a fourth packet to the core network node, where an IP header of the fourth packet includes a source IP address and a destination IP address, the source IP address is used to indicate that the fourth packet comes from the server, the destination IP address is a third destination address, and the third destination address is a destination address used by the core network node to receive a packet corresponding to the broadcast service. And the user data packet protocol (UDP) header in the fourth message may include identification information of a port corresponding to the message corresponding to the broadcast service, and if the UDP header includes the port identification 2 corresponding to the message corresponding to the first broadcast service, the UDP header includes the port identification 2. The inner transport layer encapsulation in the fourth message includes a data packet of the first broadcast service. After receiving the fourth packet, the core network node may determine that the fourth packet is a packet corresponding to the broadcast service according to that the destination IP address included in the IP header of the fourth packet is the third destination address. The core network node determines that the access network node receiving the message corresponding to the broadcast service is a first access network node and a second access network node, wherein a destination address corresponding to the first access network node is a first destination address, and a destination address corresponding to the second access network node is a fourth destination address. The core network node copies the fourth messages to obtain 2 fourth messages with the number equal to that of the access network nodes, replaces the destination address of one fourth message with the first destination address corresponding to the first access network node to obtain a first message, and sends the first message to the first access network node. And the core network node replaces the destination address of the other fourth message with a fourth destination address corresponding to the second access network node to obtain a third message, and then sends the third message to the second access network node. If the plurality of access network nodes also comprise other access network nodes, the same operation is adopted, the fourth message is copied to replace the destination address, and the message with the destination address replaced is sent to the corresponding access network node. The core network node only replaces the destination address in the IP header to realize the message forwarding corresponding to the broadcast service, and does not need to execute other processing on the fourth message, thereby reducing the transmission delay of the message.

Optionally, the first destination address is a destination address used by the first access network node to receive a packet corresponding to the broadcast service. The core network node may receive the indication information sent by each access network node in the at least one access network node, and obtain a destination address, used by each access network node to receive the packet corresponding to the broadcast service, or the core network node may obtain, from another node, a destination address, used by each access network node in the at least one access network node to receive the packet corresponding to the broadcast service.

In another embodiment, the destination addresses of the packets corresponding to the broadcast services received by the access network node are all the first destination addresses.

That is to say, the destination addresses corresponding to the messages corresponding to the broadcast services sent by the core network node to the access network node are the first destination addresses.

In one example, the first destination address of the packet corresponding to the broadcast service received by the access network node may be predefined. The core network node and the access network node may each determine the first destination address according to preconfigured information. And after receiving the fourth message from the server, the core network node sends a message corresponding to the broadcast service to at least one access network node which needs to receive the message corresponding to the broadcast service, wherein the destination address of the message corresponding to each broadcast service is the first destination address. Each access network node can determine that the received message is a message corresponding to the broadcast service according to the first destination address. The message received by the first access network node is a first message, and the first access network node determines that the first message is a message corresponding to the broadcast service according to the fact that the destination address in the first message is a first destination address.

In another example, the core network node may send indication information D to the access network node, where the indication information D is used to indicate that a destination address corresponding to a packet corresponding to a broadcast service sent by the core network node is a first destination address, and the access network node may determine, according to the indication information D, that the packet is a packet corresponding to the broadcast service if the destination address in the packet from the core network is the first destination address.

Optionally, the core network node may replace the destination address in the fourth message with the first destination address, obtain a message corresponding to the broadcast service sent to the access network node, and send the message obtained after replacing the destination address to at least one access network node that needs to receive a data packet of the broadcast service.

S404, the first access network node determines that the first packet is a packet corresponding to the first broadcast service.

The first access network node may determine, according to the first destination address and/or the first port identification information in the first packet, that the first packet is a packet corresponding to a broadcast service. The first port identification information is identification information of a port corresponding to the first broadcast service.

In an embodiment, the first destination address is a destination address used by the first access network node to receive a packet corresponding to a broadcast service, and the first access network node determines that the first packet is a packet corresponding to a broadcast service according to that the destination address of the first packet is the first destination address.

Optionally, the first destination address may be a predefined destination address used by the first access network node for receiving a packet corresponding to the broadcast service. Or, the first access network node may send first indication information to the core network node, where the first indication information is used to indicate the first destination address, where the first access network node is used to receive the packet corresponding to the broadcast service. And enabling the message corresponding to the broadcast service sent by the core network node to the first access network node to include the first destination address.

And after determining that the first message is the broadcast service message according to the first destination address, the first access network node determines that a data packet of the broadcast message included in the first message is specifically the first broadcast service data packet according to the first port identification information in the first message. But the application is not limited thereto. For example, the first packet includes identification information of the first broadcast service, and the first access network node determines, according to the service identification information of the first broadcast service, that a data packet of the broadcast packet included in the first packet is specifically a data packet of the first broadcast service.

In another embodiment, the first access network node determines that the first packet is a packet corresponding to a broadcast service according to the first port identification information. After receiving the first packet, the first access network node obtains first port identification information included in the first packet, where the first port identification information is identification information of a port corresponding to a first broadcast service, and then the first access network node may determine that the first packet is a packet corresponding to a broadcast service.

Optionally, the first port identification information may be port identification information corresponding to a predefined broadcast service. Or, the first access network node may receive second indication information from the server, where the second indication information is used to indicate that the identifier of the port corresponding to the first broadcast service is the first port identifier information. And the first access network node can determine that the first message is a message corresponding to the broadcast service according to the first port identification information.

According to the scheme, the core network node can transmit the data packet of the broadcast service to the access network node in a routing mode without executing a complex session establishment process between the access network node and the core network node. The complexity of broadcast service deployment can be reduced, and the deployment efficiency is improved.

S405, the first access network node determines a first broadcast channel corresponding to the first broadcast service according to the configuration information.

And the first access network node determines that the first message contains a data packet of the first broadcast service according to the first port identification information in the first message. The first access network node may determine, according to the configuration information, a first broadcast channel corresponding to the first broadcast service. The first broadcast channel is used for transmitting data packets of a first broadcast service.

In other words, the configuration information may be used to determine a broadcast channel corresponding to the broadcast service, that is, the configuration information may be used to determine a corresponding relationship between the broadcast service and the broadcast channel. In a specific embodiment, the configuration information may configure a broadcast channel corresponding to one broadcast service, or may configure multiple broadcast channels corresponding to multiple broadcast services.

It should be noted that different transmission channels may have different corresponding logical transmission resources and/or different physical transmission resources, for example, different transmission channels may have different corresponding logical transmission parameters. Or, the time-frequency positions of the corresponding physical transmission resources may be different for different transmission channels. The first broadcast channel is a pre-configured transmission channel for transmitting data packets of a first broadcast service, and the first access network node may be pre-configured with configuration parameter information corresponding to the first broadcast channel.

The first access network node may be preconfigured with a correspondence of the broadcast service and the broadcast channel, the correspondence including that the first broadcast service corresponds to the first broadcast channel. The first access network node determines a first broadcast channel corresponding to the first broadcast service according to the pre-configured corresponding relationship.

Optionally, the corresponding relationship includes a corresponding relationship between a plurality of broadcast services and a plurality of broadcast channels, where one broadcast channel in the plurality of broadcast channels is used to transmit a data packet of a broadcast service corresponding to the one broadcast channel, and the plurality of broadcast services include a first broadcast service. Optionally, the corresponding relationship may be one-to-one, one-to-many, many-to-one, or many-to-many, which is not limited in this application.

In one embodiment, one broadcast channel of the plurality of broadcast channels in the correspondence corresponds to one port identification information, and one port identification information is used for identifying one broadcast service. The first access network node may determine the first broadcast channel according to the correspondence and the first port identification information.

For example, the first access network node may pre-configure a corresponding relationship as shown in table 1, optionally, the corresponding relationship shown in table 1 may be configuration information, and the corresponding relationship includes a corresponding relationship between 3 broadcast services and 3 broadcast channels. Wherein, the port number corresponding to the first broadcast service is 2 (i.e. an example of the first port identification information), and the identification Information (ID) of the corresponding broadcast channel (i.e. the first broadcast channel) is 1; the port number corresponding to the second broadcast service is 3, and the ID of the corresponding broadcast channel is 2; the identification information of the port corresponding to the third broadcast service is 1, and the ID of the corresponding broadcast channel is 3. After receiving the first message, the first access network node determines that the first message includes a data packet of a first broadcast service according to the port number included in the first message being 2. The first access network node may determine, according to the correspondence shown in table 1 and the port number 2, that the broadcast channel corresponding to the first broadcast service is a broadcast channel with an ID of 1, that is, the first broadcast channel.

TABLE 1

Broadcast service	First broadcast service	Second broadcast service	Third broadcast service
				Port number	2	3	1
Broadcast channel ID	1	2	3

It should be understood that the tables provided in the embodiments of the present application are examples provided in the embodiments of the present application, and the present application is not limited thereto, for example, table 1 shows a corresponding relationship between a plurality of broadcast services and a broadcast channel, but the corresponding relationship provided in the present application may also only include a corresponding relationship between one broadcast service and one broadcast channel, and for example, values of the port identification information and the identification information of the broadcast channel in table 1 are also only examples, and the present application is not limited thereto, and other identification manners may also be adopted for the port identification information and the identification information of the broadcast channel.

Optionally, the configuration information may further include frequency information corresponding to each broadcast service, and the first access network node may send a data packet of the broadcast service on a broadcast channel on a corresponding frequency according to the frequency information.

For example, the first access network device supports 3 operating frequencies, such as frequency point 1, frequency point 2, and frequency point 3, where each frequency point has 3 cells operating at the frequency point. Several broadcast channels may be included on each cell. The first access network node may pre-configure a corresponding relationship as shown in table 2, where the configuration information indicates that the first broadcast service uses frequency point 1, and after receiving a data packet of the first broadcast service, the first access network device determines to select a working frequency point to send the data packet of the first broadcast service on broadcast channel 1 of each of three cells of frequency point 1. The first broadcast channel is broadcast channel 1 at frequency point 1.

TABLE 2

Broadcast service	First broadcast service	Second broadcast service	Third broadcast service
				Port number	2	3	1
Broadcast channel ID	1	2	3
				Frequency information	Frequency point 1	Frequency point 1, frequency point 2	Frequency point 2

Alternatively, the frequency information may be 1 or more. When a plurality of frequency information corresponding to one broadcast service is available, the first access network node sends a data packet of the broadcast service in a corresponding broadcast channel on each frequency point corresponding to the broadcast service.

For example, after receiving the data packet of the second broadcast service, the first access network node may determine, according to the correspondence shown in table 2, that the frequency point corresponding to the second broadcast service is frequency point 1 and frequency point 2, and the broadcast channel corresponding to the second broadcast service is broadcast channel 2, and then the first access network node sends the data packet of the second broadcast service on broadcast channel 2 on frequency point 1, and sends the data packet of the second broadcast service on broadcast channel 2 on frequency point 2.

In another embodiment, one broadcast channel of the multiple broadcast channels in the correspondence may correspond to one port identification information and one destination address, and the first access network node may determine the first broadcast channel according to the correspondence, the first port identification information, and the first destination address.

For example, a destination address of a packet corresponding to a broadcast service, which is used by a first access network node to receive the broadcast service, belongs to an address range, which may include an IP address 1 and an IP address 2, as shown in table 3, for example, a first destination address in the first packet is an IP address 1, and first port identification information included in the first packet is a port number 1. The first access network node may determine the broadcast channel 1 according to the IP address 1 and the port number 1 in the first message. The first access network node may send data packets of the first broadcast service to the terminal device on broadcast channel 1. Optionally, the configuration information further includes frequency information corresponding to the broadcast channel and shown in table 3, and the first access network node may further determine that the broadcast channel 1 of the cell operating on the frequency point 1 sends the data packet of the first broadcast service to the terminal device.

TABLE 3

In another embodiment, one broadcast channel of the plurality of broadcast channels in the correspondence may correspond to a plurality of broadcast services.

The first access network device may identify, through different identification information, data packets of multiple broadcast services transmitted in the same broadcast channel, so that the terminal device may distinguish different broadcast services according to the identification information. For example, a data packet of a broadcast service indicates a transmission resource through Downlink Control Information (DCI), radio Network Temporary Identifiers (RNTIs) corresponding to the broadcast service in the same broadcast channel may be different, and the RNTIs are used for scrambling the downlink control information. And the terminal equipment can detect the DCI corresponding to the first broadcast service transmitted in the broadcast channel according to the RNTI corresponding to the first broadcast service.

Optionally, the configuration information of the access network device may further include configuration parameter information corresponding to a plurality of broadcast channels.

The first access network node may determine configuration parameter information of the first broadcast channel according to the configuration information, and process a data packet of the first broadcast service according to the configuration parameter information. Optionally, the correspondence may include identification information of configuration parameter information corresponding to the plurality of broadcast channels.

For example, the correspondence relationship shown in table 5 includes a port number, a broadcast channel ID, frequency information, and a configuration parameter information ID corresponding to one broadcast service. The first access network node may determine, according to the correspondence shown in table 5, a broadcast channel 1 (i.e., an example of the first broadcast channel) corresponding to the first broadcast service, and the first access network node may also determine, according to the correspondence, that the ID of the configuration parameter information corresponding to the broadcast channel 1 is 1. The first access network node may have processed the data packet of the first broadcast service according to the configuration parameter information identified as 1 in the configuration information.

TABLE 4

Broadcast service	First broadcast service	Second broadcast service	Third broadcast service	Fourth broadcast service
					Port number	1	2	1	2
Broadcast channel ID	1	2	3	4
					Frequency information	Frequency point 1	Frequency point 1	Frequency point 2, frequency point 3	Frequency point 3
Configuration parameter information ID	1	2	3	4

S406, the first access network node sends a data packet of the first broadcast service in the first broadcast channel.

After determining the first broadcast channel corresponding to the first broadcast service, the first terminal device may broadcast the data packet of the first broadcast service in the first message in the first broadcast channel.

Optionally, the first access network node is preconfigured with configuration parameter information of the first broadcast channel, and the first access network node processes the data packet of the first broadcast service according to the configuration parameter information of the first broadcast channel and sends the processed data packet of the first broadcast service through the first broadcast channel.

The configuration parameter information may include, but is not limited to, one or more of the following:

packet Data Convergence Protocol (PDCP) layer configuration parameter information, radio Link Control (RLC) layer configuration parameter information, medium Access Control (MAC) layer configuration parameter information, or a radio network temporary identifier RNTI corresponding to a first broadcast channel.

For example, the configuration parameter information may include PDCP layer configuration parameter information corresponding to the first broadcast channel, and the PDCP layer configuration parameter information may include one or more parameters of downlink PDCP Sequence Number (SN) size parameter information, indication information of whether header compression is used, reordering timer information, ciphering protection information, integrity protection information, or identification information of a Data Radio Bearer (DRB). The first access network node may perform PDCP layer encapsulation on the data packet of the first broadcast service according to the PDCP layer configuration parameter information.

The downlink PDCP Sequence Number (SN) size parameter information may be referred to as a PDCP-SN-SizeDL, for example, the PDCP-SN-SizeDL parameter may indicate that the downlink PDCP Sequence Number (SN) size is 18 bits. The indication information of whether to use the header compression may be referred to as header compression, for example, the header compression may indicate that the header compression is not used. The reordering timer information indicates a maximum time for the terminal device to wait for reordering, and the encryption protection information may indicate whether encryption protection is used. The integrity protection information may indicate whether integrity protection is used. The configuration parameter information may include identification information of the DRB, which may be 31. But the application is not limited thereto.

For another example, the configuration parameter information may include RLC layer configuration parameter information corresponding to the first broadcast channel, and the RLC layer configuration parameter information may include RLC mode indication information, logical channel identification information, sequence number indication information, or reassembly timer information. The first access network node may perform RLC layer encapsulation processing on the data packet of the first broadcast service according to the RLC layer configuration parameter information.

The RLC mode indication information may indicate that the RLC mode is an un-acknowledged mode (UM), the logical channel identifier information may be 31, and the sequence number indication information may indicate that the sequence number length is 2 bits. The reassembly timer information may indicate a maximum time to perform reassembly sequencing of 0ms. The logical channel identity (LCH) may be an LCH ID. But the application is not limited thereto.

For another example, the configuration parameter information may include RNTI information corresponding to the first broadcast channel, and the RNTI information may be group RNTI (i.e., G-RNTI) information corresponding to a group of terminal devices. The first access network node may perform physical layer processing on the data packet of the first broadcast service according to the G-RNTI information.

For example, the first access network node notifies the terminal device of a physical transmission resource (e.g., a Physical Downlink Shared Channel (PDSCH) resource) for carrying a data packet of the first broadcast service through the DCI, and the first access network node performs scrambling processing on the DCI according to RNTI information corresponding to the first broadcast channel and then sends the DCI to the terminal device. Optionally, one or more of a format of the DCI, a search space (search space) corresponding to the DCI, and a control resource set (core set) carrying the DCI may be pre-configured. For example, the search space corresponding to the DCI may be a common search space configured in a system information block 1 (system information block 1, sib1) by the first access network node, the CORESET carrying the DCI may be CORESET0, and the DCI format may be format 1-0. But the application is not limited thereto.

Optionally, the first access network node may be preconfigured with configuration parameter information for a plurality of broadcast channels, including the first broadcast channel.

For example, the first access network node may be configured with configuration parameter information for 3 broadcast channels as shown in table 5. As shown in table 5, the configuration parameter information of each broadcast channel includes RNTI information, PDCP layer configuration parameter information, and RLC layer configuration parameter information. The first access network node may determine configuration parameter information of the first broadcast channel according to the identifier of the first broadcast channel, and process the data packet of the first broadcast service according to the configuration parameter information. In table 5, RNTI information of each broadcast channel is different, and PDCP configuration parameter information and RLC configuration parameter information are the same, but the application is not limited thereto, and PDCP configuration parameter information and/or RLC configuration parameter information of different broadcast channels may also be different.

TABLE 5

The first access network node may send a second packet in the first broadcast channel, where the second packet includes a data packet of the first broadcast service.

In one embodiment, the destination address in the second message is the first destination address. That is, the first access network node does not modify the destination address in the first message, and sends the second message including the first destination address to the terminal device.

For example, the first destination address is an IP address, and after receiving the first packet, the first access network node reserves the IP address in the first packet, that is, the first destination address, so that the IP address in the second packet is also the first destination address. Or the second message may be the first message. That is, the first access network node forwards the received first packet to the terminal device through the first broadcast channel. For example, the first access network node processes the data packet of the first broadcast service according to the configuration parameter information of the first broadcast channel, where the data packet of the first broadcast service may be included in a first message, and the first access network node processes the first message according to the configuration parameter information of the first broadcast channel and then sends the first message to the terminal device.

Optionally, the first destination address may be a predefined destination address of the access network node and the terminal device for receiving the broadcast message. Or, the first access network node may send indication information to a terminal device that receives the broadcast packet, where the indication information is used to indicate that a destination address corresponding to the broadcast packet is a first destination address, so that both the first access network node and the terminal device receive the broadcast packet by using the first destination address.

In another embodiment, the destination address included in the second packet is a second destination address. The second destination address is a destination address used by the terminal device for receiving the broadcast message.

Optionally, the second message is obtained by replacing the first destination address in the first message with a second destination address by the first access network node.

For example, after replacing the first destination address in the first message with the second destination address to obtain a second message, the first access network node sends the second message to the terminal device through the first broadcast channel. Optionally, the first access network node processes the data packet of the first broadcast service according to the configuration parameter information of the first broadcast channel, where the data packet of the first broadcast service may be included in a second packet, and the first access network node processes the second packet according to the configuration parameter information of the first broadcast channel and then sends the second packet to the terminal device.

If the terminal device needs to receive the data packet of the first broadcast service, the terminal device may determine, according to the configuration information, a first broadcast channel corresponding to the first broadcast service, and receive the data packet of the first broadcast service in the first broadcast channel.

The terminal device may be preconfigured with a correspondence between the broadcast service and the broadcast channel, where the correspondence includes that the first broadcast service corresponds to the first broadcast channel. And the terminal equipment determines a first broadcast channel corresponding to the first broadcast service according to the pre-configured corresponding relation.

The terminal device may obtain a user operation instruction, where the user operation instruction is used to instruct an operation of obtaining a data packet of the first broadcast service, and in response to the operation instruction, the terminal device determines, according to the configuration information, that a transmission channel corresponding to the first broadcast service is the first broadcast channel. So that the terminal device can receive the data packet of the first broadcast service through the first broadcast channel. The user (user) may refer to a user using the terminal device, and therefore, the terminal device may also be referred to as a User Equipment (UE). The terminal device may obtain the user operation instruction through a User Interface (UI) of the terminal device, where the UI may also be referred to as a user interface or a user operation interface. Illustratively, the user interface may be a display screen or a keyboard, or the like.

For example, the broadcast service may be a broadcast television service, a user may select a television channel to be watched through an Application (APP) interface of the terminal device, for example, an APP interface is displayed on a display screen of the terminal device, a selection item of a plurality of television channels is displayed on the APP interface, the user performs an operation of acquiring the television channel 1, for example, the user clicks the selection item corresponding to the television channel 1 by touching the display screen, and the terminal device may acquire an operation instruction (i.e., an example of a user operation instruction) of acquiring the television channel 1 (i.e., the first broadcast service) by touching the display screen. After the terminal device obtains the operation instruction, the first broadcast channel for transmitting the data packet of the television channel 1 is determined according to the configuration information, and then the terminal device can receive the data packet of the television channel 1 in the first broadcast channel.

Optionally, the corresponding relationship includes a corresponding relationship between a plurality of broadcast services and a plurality of broadcast channels, where one broadcast channel in the plurality of broadcast channels is used to transmit a data packet of a broadcast service corresponding to the one broadcast channel, and the plurality of broadcast services include a first broadcast service.

In another embodiment, one broadcast channel of the plurality of broadcast channels in the correspondence corresponds to one port identification information, and one port identification information is used to identify one broadcast service. The first access network node may determine the first broadcast channel according to the correspondence and the first port identification information.

It should be noted that the correspondence included in the configuration information of the terminal device needs to be the same as the correspondence included in the configuration information of the access network device, and for example, the correspondence shown in table 2 or table 3 is configured for both the terminal device and the network device. Or the corresponding relation configured in the configuration information of the terminal equipment is a partial corresponding relation in the corresponding relation configured in the configuration information of the first access network equipment. The terminal equipment and the first access network equipment can achieve consensus on the broadcast channel corresponding to the broadcast service, and the access network equipment does not need to send multi-level indication information to inform the terminal equipment of the broadcast channel corresponding to the broadcast service.

Optionally, the configuration information for configuring the broadcast service and the broadcast channel of the terminal device may be predefined or may be acquired from a server.

In an optional implementation manner, the configuration information of the terminal device includes a correspondence between the first broadcast service and the first broadcast channel. The first broadcast service may be a service in which the server provides broadcast service configuration information (e.g., a broadcast service other than the first broadcast service) to the terminal device. When the terminal device needs to acquire the broadcast service configuration information, the terminal device may receive a data packet of the first broadcast service through the first broadcast channel.

For example, the first configuration information of the terminal device configures a corresponding relationship between the first broadcast service and the first broadcast channel, for example, the first configuration information may include an ID, configuration parameters, and the like of the first broadcast channel corresponding to the first broadcast service, and the first configuration information may also configure information such as a port number (for example, the port number is 6000) of a packet for acquiring the first broadcast service. When the terminal device needs to obtain the broadcast service configuration information, the terminal device receives the data packet of the first broadcast service in the first broadcast channel, and receives the broadcast service configuration information from the server from the port 6000. The broadcast service configuration information may configure a correspondence between at least one broadcast service and a broadcast channel. For example, a data packet of the first broadcast service received by the terminal device through the first broadcast channel includes broadcast service configuration information, where the broadcast service configuration information includes broadcast channel information and port number information corresponding to the second broadcast service and the third broadcast service as shown in table 6.

TABLE 6

Broadcast service	Second broadcast service	Third broadcast service
			Port number	3	1
Broadcast channel ID	2	3

That is to say, the mapping relationship configured by the first configuration information of the terminal device is a partial mapping relationship in the mapping relationship configured in the configuration information of the first access network device. For example, only the corresponding relationship between the first broadcast service and the first broadcast channel is configured in the first configuration information of the terminal device, and the first broadcast service provides the configuration information of other broadcast services for the terminal device. The terminal device can obtain the configuration information of other broadcast services by obtaining the data packet of the first broadcast service from the server through the first broadcast channel, so that the terminal device can obtain the configuration information of other broadcast services provided by the first access network device from the server through the first broadcast service.

Optionally, the broadcast service configuration information may further include one or more of a service name of the broadcast service, frequency information, configuration parameter information of a broadcast channel, and RNTI information.

For example, the broadcast service configuration information included in the data packet of the first broadcast service may be used to configure information related to one or more broadcast services. The broadcast service configuration information may include information as shown in table 7, and the broadcast service configuration information configures port numbers, broadcast channel IDs, frequency information, service names, G-RNTIs, configuration parameters of PDCP, and configuration parameters of RLC of a plurality of broadcast services, i.e., a second broadcast service, a third broadcast service, and an nth broadcast service, respectively. The terminal device can obtain the data packet of the corresponding broadcast service according to the broadcast service configuration information according to the user requirement.

TABLE 7

Optionally, the terminal device is configured with configuration parameter information of the first broadcast channel, and the terminal device processes the data packet of the first broadcast service according to the configuration parameter information of the first broadcast channel, and sends the processed data packet of the first broadcast service through the first broadcast channel.

the configuration parameter information of the PDCP layer, the configuration parameter information of the RLC layer or the radio network temporary identifier RNTI corresponding to the first broadcast channel.

The configuration parameter information of the first broadcast channel preconfigured by the terminal equipment is the same as the configuration parameter information of the first broadcast channel of the first access network node. If the configuration parameter information of the first broadcast channel includes the RNTI information, the first access network node performs physical layer encapsulation processing on the data packet of the first broadcast service according to the RNTI information, and correspondingly, the terminal device performs physical layer decapsulation processing according to the RNTI information. Optionally, one or more of a format of the DCI, a search space (search space) corresponding to the DCI, and a control resource set (core set) carrying the DCI may be preconfigured, and the DCI related preconfigured information is the same as the preconfigured information of the first access network node.

For example, the search space corresponding to the DCI may be a common search space configured by the first access network node through a system information block 1 (sib1), the CORESET carrying the DCI may be CORESET0, and the DCI format may be format 1-0. The terminal device detects the DCI with the DCI format 1-0 according to the common search space of the RNTI information corresponding to the first broadcast channel in CORESET 0. And the terminal equipment determines a physical transmission resource (such as a PUSCH resource) carrying the data packet of the first broadcast service according to the DCI, and the data packet of the first broadcast service is received on the physical transmission resource.

If the configuration parameter information of the first broadcast channel comprises RLC layer parameter information, the first access network node performs RLC layer encapsulation processing on a data packet of the first broadcast service according to the RLC layer parameter information, and correspondingly, the terminal device performs RLC layer decapsulation processing on the received data packet of the first broadcast service with RLC layer encapsulation according to the RLC layer parameter information.

If the configuration parameter information of the first broadcast channel comprises PDCP layer parameter information, the first access network node performs PDCP layer encapsulation on the data packet of the first broadcast service according to the PDCP layer parameter information, and correspondingly, the terminal device performs PDCP layer decapsulation on the received data packet of the first broadcast service with PDCP layer encapsulation according to the PDCP layer parameter information.

For example, in the terminal device, a modem (modem) module specifically performs decapsulation processing on a physical layer, a PDCP layer, and an RLC layer, the modem module sends a decapsulated data packet of the first broadcast service to a network card module inside the terminal device, and a terminal APP that needs to receive the data packet of the first broadcast service listens to the first port identification information through the network card module, and acquires the corresponding data packet of the first broadcast service according to the first port identification information.

And the modulation and demodulation module obtains a second message after de-encapsulation, wherein the second message comprises a data packet of the first broadcast service. And the modulation and demodulation module sends the decapsulated second message to a network card module of the terminal equipment.

In one embodiment, the network card module replaces the destination address in the second message with the IP address of the network card module, so that the terminal APP can access the data of the network card module through the IP address of the network card module.

In another embodiment, the network card module may be a network card module established for a broadcast service. The IP address of the network card module is a second destination address for the terminal device to receive the broadcast message. The network card module can be used for accessing data by the terminal APP without replacing an IP address after acquiring the second message. Optionally, the terminal device may be preconfigured with configuration parameter information of a plurality of broadcast channels, the plurality of broadcast channels including the first broadcast channel. Correspondingly, the first access network node pre-configuration information comprises configuration parameter information of the plurality of broadcast channels.

For example, the first access network node is configured with configuration parameter information corresponding to 3 broadcast channels as shown in table 2. The terminal device may be configured with the configuration parameter information corresponding to the 3 broadcast channels shown in table 2, or the terminal device may be configured with the configuration parameter information corresponding to a part of the 3 broadcast channels.

It should be noted that the predefined or preconfigured information described in the embodiments of the present application may be information stored in the node or the device when the node or the device is shipped from the factory.

According to the scheme, the access network node and the terminal equipment can achieve consensus on the transmission channel corresponding to the broadcast service according to the preconfigured information respectively, the transmission channel corresponding to the broadcast service does not need to be interacted with the terminal equipment through communication through the access network node, and the complexity of realizing data packet transmission of the broadcast service is reduced. And the rapid and simple broadcast service deployment can be realized.

In an alternative embodiment, the first access network node and the terminal device may pre-configure a correspondence between the partial broadcast service and the broadcast channel. Other broadcast services than the portion of broadcast service may be transmitted over the common broadcast channel.

That is to say, the data packets of other broadcast services except the pre-configured correspondence relationship between the first access network node and the terminal device may share the common broadcast channel for transmission, where the common broadcast channel may be configured for the terminal device by the first access network node.

For example, the first access network node may broadcast the configuration information of the control channel through a system message (or MCCH message), and the terminal device may determine the control channel according to the received system message (or MCCH message) from the first access network node. The control channel is used for transmitting configuration information of the common broadcast channel, and the first access network node may send third indication information on the control channel, where the third indication information is used for indicating the common broadcast channel, and for example, the third indication information includes physical resource configuration information of the common broadcast channel and related parameter information. The related parameter information may include information such as a mapping relationship between the TMGI, the G-RNTI, and the LCID. After receiving the broadcast message from the core network node, the first access network node judges whether the first access network node is preconfigured with a corresponding broadcast channel, and if the first access network node is preconfigured with a corresponding broadcast channel, the first access network node sends a broadcast service data packet contained in the broadcast message in the broadcast channel. If the first access network node does not pre-configure a corresponding broadcast channel, the first access network node schedules a public broadcast channel to transmit a broadcast service data packet contained in the broadcast message.

For example, the first access network node receives the first packet from the core network node, where the first packet includes a data packet of a first broadcast service, and the first access network node may determine that a preconfigured correspondence includes a correspondence between the first broadcast service and a first broadcast channel, and send the data packet of the first broadcast service through the first broadcast channel. When the first access network node receives a third packet from the core network node, where the third packet includes a data packet of the second broadcast service, the first access network node may determine that the preconfigured correspondence does not include a broadcast channel corresponding to the second broadcast service, and the first access network node sends the data packet of the second broadcast service through the common broadcast channel. Specifically, the first access network node sends fourth indication information, where the fourth indication information is used to indicate that the common broadcast channel is scheduled to transmit a data packet of the second broadcast service, for example, the fourth indication information is DCI of the scheduled broadcast channel, and the fourth indication information carries a G-RNTI indicated by the third indication information and identification information of the second broadcast service, which indicate that the first access network node schedules the common broadcast channel to transmit the data packet of the second broadcast service. And after the first access network node sends the fourth indication information, sending a data packet of the second broadcast service in a public broadcast channel.

Correspondingly, if the terminal device needs to receive the data packet of the second broadcast service, the terminal device may determine, according to the pre-configured corresponding relationship, that the corresponding relationship does not include the broadcast channel corresponding to the second broadcast service. The terminal device may detect, according to the G-RNTI indicated by the third indication information, the indication information for scheduling the common broadcast channel, for example, fourth indication information that the terminal device detects a fourth indication information from the first access network node, and the terminal device may determine, according to the fourth indication information carrying the identification information of the second broadcast service, that the first access network node schedules the common broadcast channel to transmit a data packet of the second service. The terminal device receives the data packet of the second broadcast service in the common broadcast channel according to the fourth indication information.

The method provided by the embodiment of the present application is described in detail above with reference to fig. 2 to 5. Hereinafter, the apparatus and the device provided in the embodiments of the present application will be described in detail with reference to fig. 6 to 9. In order to implement the functions in the method provided by the embodiments of the present application, each network element may include a hardware structure and/or a software module, and implement the functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether any of the above functions is implemented as a hardware structure, a software module, or a combination of a hardware structure and a software module depends upon the particular application and design constraints imposed on the technical solution.

Fig. 6 is a schematic block diagram of a communication device provided in an embodiment of the present application. As shown in fig. 6, the communication device 600 may include a transceiving unit 620.

In one possible design, the communication apparatus 600 may correspond to the terminal device in the above method embodiment, or a chip configured in (or used in) the terminal device, or other apparatuses, modules, circuits, or units capable of implementing the method of the terminal device.

It should be understood that the communication apparatus 600 may correspond to a terminal device in the method 400 according to the embodiment of the present application, and the communication apparatus 600 may include a unit for executing the method executed by the terminal device in the method 400 in fig. 4. Also, each unit in the communication apparatus 600 is respectively configured to implement the corresponding operation, function and flow of the terminal device in the method 400 in fig. 4.

Optionally, the communication device 600 may further include a processing unit 610, and the processing unit 610 may be configured to process instructions or data to implement corresponding operations.

It should also be understood that, when the communication apparatus 600 is a chip configured (or used) in a terminal device, the transceiver unit 620 in the communication apparatus 600 may be an input/output interface or circuit of the chip, and the processing unit 610 in the communication apparatus 600 may be a processor in the chip.

Optionally, the communication apparatus 600 may further include a storage unit 630, where the storage unit 630 may be used to store instructions or data, and the processing unit 610 may execute the instructions or data stored in the storage unit to enable the communication apparatus to implement corresponding operations.

It should be understood that the transceiving unit 620 in the communication device 600 may be implemented by a communication interface (such as a transceiver or an input/output interface), for example, may correspond to the transceiver 710 in the terminal device 700 shown in fig. 7. The processing unit 610 in the communication apparatus 600 may be implemented by at least one processor, for example, may correspond to the processor 720 in the terminal device 700 shown in fig. 7. The processing unit 610 in the communication device 600 may also be implemented by at least one logic circuit. The storage unit 630 in the communication apparatus 600 may correspond to a memory in the terminal device 700 shown in fig. 7.

Alternatively, the communication apparatus 600 may further include an acquisition unit that acquires a user operation instruction. The obtaining unit may output the user operation instruction to the processing unit 610, and the processing unit 610 executes corresponding operations in the above method embodiments according to the user operation instruction.

It should also be understood that, the specific processes of the units for executing the corresponding steps described above have been described in detail in the above method embodiments, and are not described herein again for brevity.

In another possible design, the communication device 600 may correspond to an access network node in the above method embodiments, for example, or a chip configured in (or used in) the access network node, or other device, module, circuit, or unit capable of implementing the method of the access network node.

It should be understood that the communication apparatus 600 may correspond to an access network node in the method 400 according to an embodiment of the present application, and that the communication apparatus 600 may include means for performing the method performed by the access network node in the method 400 in fig. 4. Also, each unit in the communication apparatus 600 is respectively configured to implement the operation, function and flow corresponding to the access network node in the method 400 in fig. 4.

It should also be understood that, when the communication apparatus 600 is a chip configured in (or used in) an access network node, the transceiver unit 620 in the communication apparatus 600 may be an input/output interface or circuit of the chip, and the processing unit 610 in the communication apparatus 600 may be a processor in the chip.

Optionally, the communication device 600 may further include a storage unit 630, where the storage unit 630 may be used to store instructions or data, and the processing unit 610 may execute the instructions or data stored in the storage unit to enable the communication device to implement corresponding operations.

It should be understood that when the communication apparatus 600 is an access network node, the transceiving unit 620 in the communication apparatus 600 may be implemented by a communication interface (such as a transceiver or an input/output interface), for example, may correspond to the transceiver 810 in the access network device 800 shown in fig. 8. The processing unit 610 in the communication apparatus 600 may be implemented by at least one processor, for example, may correspond to the processor 820 in the access network device 800 shown in fig. 8, and the processing unit 610 in the communication apparatus 600 may be implemented by at least one logic circuit.

In another possible design, the communication apparatus 600 may correspond to the core network node in the above method embodiment, for example, or a chip configured in (or used for) the core network node, or other apparatus, module, circuit, or unit capable of implementing the method of the core network node.

It should be understood that the communication apparatus 600 may correspond to a core network node in the method 400 according to the embodiment of the present application, and that the communication apparatus 600 may include means for performing the method performed by the core network node in the method 400 in fig. 4. Each unit in the communication apparatus 600 is configured to implement the operation, function, and flow corresponding to the core network node in the method 400 in fig. 4.

It should also be understood that, when the communication device 600 is a chip configured (or used) in a core network node, the transceiver unit 620 in the communication device 600 may be an input/output interface or circuit of the chip, and the processing unit 610 in the communication device 600 may be a processor in the chip.

It should be understood that when the communication apparatus 600 is a core network node, the transceiving unit 620 in the communication apparatus 600 may be implemented by a communication interface (such as a transceiver or an input/output interface), for example, may correspond to the transceiver 910 in the communication device 900 shown in fig. 9. The processing unit 610 in the communication apparatus 600 may be implemented by at least one processor, for example, may correspond to the processor 920 in the communication device 900 shown in fig. 9, and the processing unit 610 in the communication apparatus 600 may be implemented by at least one logic circuit.

Fig. 7 is a schematic structural diagram of a terminal device 700 according to an embodiment of the present application. The terminal device 700 can be applied to the system shown in fig. 1, and performs the functions of the terminal device in the above method embodiment. As shown in fig. 7, the terminal device 700 includes a processor 720 and a transceiver 710. Optionally, the terminal device 700 further comprises a memory. The processor 720, the transceiver 710 and the memory may communicate with each other via internal communication paths to transfer control and/or data signals. The memory is used for storing computer programs, and the processor 720 is used for executing the computer programs in the memory to control the transceiver 710 to transmit and receive signals.

The processor 720 and the memory may be combined into a processing device, and the processor 720 is configured to execute the program codes stored in the memory to realize the functions. In particular implementations, the memory may be integrated with processor 720 or separate from processor 720. The processor 720 may correspond to the processing unit in fig. 6.

The transceiver 710 may correspond to the transceiver unit of fig. 6. The transceiver 710 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). Wherein the receiver is used for receiving signals, and the transmitter is used for transmitting signals.

It should be understood that the terminal device 700 shown in fig. 7 is capable of implementing the procedures involving the terminal device in the method embodiment shown in fig. 4. The operations and/or functions of the modules in the terminal device 700 are respectively for implementing the corresponding flows in the above-described method embodiments. Reference may be made specifically to the description of the above method embodiments, and a detailed description is appropriately omitted herein to avoid redundancy.

The processor 720 may be configured to perform the actions described in the previous method embodiments that are implemented inside the terminal device, and the transceiver 710 may be configured to perform the actions described in the previous method embodiments that the terminal device transmits to or receives from the network device. Please refer to the description of the previous embodiment of the method, which is not repeated herein.

Optionally, the terminal device 700 may further include a user interface, where the user interface is used to obtain a user operation instruction, and the user interface may be referred to as a user interaction interface or a user operation interface. The user interface may be, for example, a display screen with a pressure sensor or a keyboard or the like.

Optionally, the terminal device 700 may further include a power supply for supplying power to various devices or circuits in the terminal device.

In addition, in order to improve the functions of the terminal device, the terminal device 700 may further include input and output means, such as one or more of an input unit, a display unit, an audio circuit, a camera, a sensor, and the like, and the audio circuit may further include a speaker, a microphone, and the like.

Fig. 8 is a schematic structural diagram of an access network device according to an embodiment of the present application, where the access network device 800 may be applied in the system shown in fig. 1, and executes the functions of the access network node in the foregoing method embodiments.

As shown in fig. 8, the access network device 800 includes a processor 820 and a transceiver 810. Optionally, the access network apparatus 800 further comprises a memory. The processor 820, the transceiver 810 and the memory may communicate with each other via the internal connection path to transfer control and/or data signals. The memory is used for storing computer programs, and the processor 820 is used for executing the computer programs in the memory to control the transceiver 810 to transmit and receive signals.

The processor 820 and the memory may be combined into a processing device, and the processor 820 is configured to execute the program codes stored in the memory to realize the functions. In particular implementations, the memory may also be integrated with the processor 820 or separate from the processor 820. The processor 820 may correspond to the processing unit in fig. 6.

The transceiver 810 described above may correspond to the transceiving unit in fig. 6. The transceiver 810 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). Wherein the receiver is used for receiving signals, and the transmitter is used for transmitting signals.

It should be understood that the access network device 800 shown in fig. 8 is capable of implementing the various processes of the access network node involved in the method embodiment shown in fig. 4. The operations and/or functions of the modules in the access network device 800 are respectively for implementing the corresponding flows in the above method embodiments. Reference may be made specifically to the description of the above method embodiments, and a detailed description is omitted here where appropriate to avoid repetition.

It should be understood that the access network device 800 shown in fig. 8 may be an eNB or a gNB, alternatively, an access network device including a Central Unit (CU), a Distributed Unit (DU), an Active Antenna Unit (AAU), and the like, and alternatively, CUs may be specifically divided into a CU-CP and a CU-UP. The present application is not limited to the specific architecture of the access network device.

Fig. 9 is a schematic structural diagram of a communication device 900 according to an embodiment of the present application, where the network device 900 may be applied to the system shown in fig. 1, and executes the functions of the core network node in the foregoing method embodiments. The communication device 900 may include a transceiver 910, a processor 920, and a memory 930.

It should be appreciated that the communication device 900 shown in fig. 9 is capable of implementing the various processes of the core network node involved in the method embodiment shown in fig. 4. The operations and/or functions of the respective modules in the communication device 900 are respectively for implementing the corresponding flows in the above-described method embodiments. Reference may be made specifically to the description of the above method embodiments, and a detailed description is appropriately omitted herein to avoid redundancy.

The embodiment of the application also provides a processing device, which comprises a processor and a (communication) interface; the processor is configured to perform the method of any of the method embodiments described above. It is to be understood that the processing means may be one or more chips.

According to the method provided by the embodiment of the present application, the present application further provides a computer program product, which includes: computer program code which, when executed by one or more processors, causes an apparatus comprising the processors to perform the method in the embodiment shown in fig. 4.

The technical solutions provided in the embodiments of the present application may be wholly or partially implemented by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, a network appliance, a terminal appliance, a core network appliance, a machine learning appliance, or other programmable apparatus. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.).

According to the method provided by the embodiment of the present application, the present application further provides a computer-readable storage medium storing program code, which when executed by one or more processors causes an apparatus including the processors to execute the method in the embodiment shown in fig. 4.

According to the method provided by the embodiment of the present application, the present application further provides a system, which includes the foregoing one or more network devices. The system may further comprise one or more of the terminal devices as previously described.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment. The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for transmitting broadcast service data, comprising:

determining that a first message from a core network node contains a data packet of a first broadcast service;

determining a first broadcast channel corresponding to a first broadcast service according to configuration information, wherein the configuration information is used for configuring the first broadcast channel corresponding to the first broadcast service;

and sending the data packet of the first broadcast service to terminal equipment in the first broadcast channel.

2. The method of claim 1, wherein the determining that the first packet contains a packet of a first broadcast service according to the first packet from the core network node comprises:

determining that the first message comprises a data packet of a first broadcast service according to first port identification information in the first message;

or,

determining that the first message comprises a data packet of a broadcast service according to a first destination address in the first message, wherein the first destination address is a destination address of an access network node for receiving a message containing the data packet of the broadcast service;

determining a data packet of a broadcast service included in the first message as a data packet of the first broadcast service according to first port identification information in the first message;

wherein the first port identification information is identification information of a port corresponding to the first broadcast service.

3. The method according to claim 2, wherein the first destination address and/or the first port identification information is predefined; or,

the method further comprises the following steps:

sending first indication information to the core network node, wherein the first indication information is used for indicating the first destination address; and/or receiving second indication information from a server, wherein the second indication information is used for indicating the first port identification information.

4. The method according to any one of claims 1 to 3, wherein the configuration information includes a correspondence relationship between a plurality of broadcast services and a plurality of broadcast channels, one of the plurality of broadcast channels is used for transmitting a data packet of the broadcast service corresponding to the one broadcast channel, and the plurality of broadcast services includes the first broadcast service.

5. The method of claim 4, wherein one of the broadcast channels in the corresponding relationship corresponds to a port identification information, one of the port identification information is an identification information of a port corresponding to a broadcast service, and,

the determining, according to the configuration information, a first broadcast channel corresponding to a first broadcast service includes:

determining the first broadcast channel based on the configuration information and first port identification information,

the first packet includes the first port identification information, where the first port identification information is identification information of a port corresponding to the first broadcast service.

6. The method according to any of claims 1 to 5, wherein the configuration information further comprises configuration parameter information corresponding to the first broadcast channel,

and, the sending the data packet of the first broadcast service to the terminal device in the first broadcast channel includes:

processing the data packet of the first broadcast service according to the configuration parameter information;

and sending the processed data packet of the first broadcast service to the terminal equipment through the first broadcast channel.

7. The method of claim 6, wherein the configuration parameter information comprises one or more of the following parameter information:

and configuring parameter information of a packet data convergence protocol PDCP layer, configuring parameter information of a radio link control RLC layer or a radio network temporary identifier RNTI corresponding to the first broadcast channel.

8. The method according to any of claims 1 to 7, characterized in that the configuration information is predefined.

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

the sending the data packet of the first broadcast service to the terminal device in the first broadcast channel includes:

sending a second message to the terminal device on the first broadcast channel, wherein the second message comprises a data packet of the first broadcast service,

the second packet is the first packet, or the second packet is a packet whose destination address is a second destination address, where the second destination address is a destination address of a packet used by the terminal device to receive a data packet including a broadcast service.

10. The method according to claim 9, wherein the destination address in the second message is a second destination address, and the second message is obtained by replacing the first destination address in the first message with the second destination address.

11. The method according to any one of claims 1 to 10, further comprising:

sending third indication information, wherein the third indication information is used for indicating a public broadcast channel;

receiving a third message from the core network node, wherein the third message comprises a data packet of a second broadcast service;

if the configuration information does not configure the broadcast channel corresponding to the second broadcast service, sending fourth indication information, where the fourth indication information is used to indicate that the public broadcast channel is scheduled to transmit a data packet of the second broadcast service;

and transmitting the data packet of the second broadcast service in the public broadcast channel.

12. A method for transmitting broadcast service data, comprising:

and receiving a data packet of the first broadcast service from the access network node on the first broadcast channel.

13. The method of claim 12, wherein the configuration information includes a correspondence relationship between a plurality of broadcast services and a plurality of broadcast channels, and one of the plurality of broadcast channels is used for transmitting a data packet of a broadcast service corresponding to the one broadcast channel, and the plurality of broadcast services includes the first broadcast service.

14. The method of claim 13, wherein one of the broadcast channels in the corresponding relationship corresponds to a port identification information, one of the port identification information is an identification information of a port corresponding to a broadcast service, and,

15. The method according to any of claims 12 to 14, wherein the receiving the data packet of the first broadcast service from the access network node on the first broadcast channel comprises:

receiving a second message from the access network node in the first broadcast channel, where the second message includes a data packet of the first broadcast service, and a destination address of the second message includes a first destination address or a second destination address, where the first destination address is a destination address used by the access network node to receive a message including the data packet of the broadcast service, and the second destination address is a destination address used by a terminal device to receive a message including the data packet of the broadcast service.

16. The method according to any one of claims 12 to 15, wherein the configuration information further includes configuration parameter information corresponding to the first broadcast channel, the method further comprising:

and processing the data packet of the first broadcast service according to the configuration parameter information.

17. The method of claim 16, wherein the configuration parameter information comprises one or more of the following parameter information:

18. The method according to any of claims 12 to 17, wherein the configuration information is predefined.

19. The method according to any one of claims 12 to 18, further comprising:

receiving third indication information from the access network node, wherein the third indication information is used for indicating a public broadcast channel;

if the configuration information does not configure a broadcast channel corresponding to a second broadcast service, receiving fourth indication information, where the fourth indication information is used to indicate that the public broadcast channel is scheduled to transmit a data packet of the second broadcast service;

and receiving a data packet of the second broadcast service from the access network node on the public broadcast channel according to the fourth indication information.

20. The method according to any one of claims 12 to 19, wherein the determining the first broadcast channel corresponding to the first broadcast service according to the configuration information comprises:

acquiring a user operation instruction, wherein the user operation instruction is used for indicating to acquire a data packet of the first broadcast service;

and responding to the user operation instruction, and determining a first broadcast channel corresponding to the first broadcast service according to the configuration information.

21. A method for transmitting broadcast service data, comprising:

determining that a fourth message contains a data packet of a broadcast service according to one or more of a first source address, a third destination address or port identification information corresponding to the broadcast service in the fourth message, wherein the fourth message is a received message from a server;

sending a first message to a first access network node, where a destination address of the first message is a first destination address, the first destination address is a destination address of a message used by the first access network node to receive a data packet containing a broadcast service, and the first message is obtained by replacing the third destination address in the fourth message with the first destination address.

22. The method of claim 21, further comprising:

and sending fifth indication information to the server, where the fifth indication information is used to indicate the third destination address, and the third destination address is a destination address of a core network node used to receive a packet including a data packet of a broadcast service.

23. The method of claim 21, wherein the first source address, the third destination address, or the port identification information is predefined.

24. The method according to any of claims 21 to 23, wherein the first destination address is predefined; or,

the method further comprises the following steps:

receiving first indication information from the first access network node, the first indication information indicating the first destination address.

25. The method of any one of claims 21 to 24, further comprising:

copying the fourth message to obtain a backup message, and replacing the first destination address in the backup message with a fourth destination address to obtain a third message, wherein the fourth destination address is a destination address of a message used by a second access network node for receiving a data packet containing a broadcast service;

and sending the third message to the second access network node.

26. A communications device comprising at least one processor coupled to a memory;

the memory is used for storing programs or instructions;

the at least one processor is configured to execute the programs or instructions to cause the apparatus to implement the method of any one of claims 1 to 11.

27. A communications device comprising at least one processor coupled to a memory;

the memory is used for storing programs or instructions;

the at least one processor is configured to execute the programs or instructions to cause the apparatus to implement the method of any of claims 12 to 20.

28. A communications apparatus comprising at least one processor coupled to a memory;

the memory is used for storing programs or instructions;

the at least one processor is configured to execute the programs or instructions to cause the apparatus to implement the method of any of claims 21-24.

29. A computer-readable storage medium having stored thereon instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1 to 11.

30. A computer-readable storage medium having stored thereon instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 12 to 20.

31. A computer-readable storage medium having stored thereon instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 21 to 24.