CN113965890B

CN113965890B - Transmission method and device of multicast service data

Info

Publication number: CN113965890B
Application number: CN202010683196.4A
Authority: CN
Inventors: 彦楠; 周锐; 张大钧
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2023-03-24
Anticipated expiration: 2040-07-15
Also published as: CN113965890A; WO2022012196A1

Abstract

The disclosure relates to the field of communication, and discloses a method and a device for transmitting multicast service data, which are used for realizing multicast service transmission in a 5G NR system. The method comprises the following steps: after determining at least one multicast service which is allowed to be received by a terminal in a multicast mode, a network side sends multicast mode indication information generated based on the at least one multicast service to the terminal by adopting an air interface special signaling, and the terminal receives service data of the at least one multicast service in a multicast mode on a corresponding multicast service channel based on multicast service related channel configuration information corresponding to the received multicast mode indication information, so that the signaling is prevented from being sent to the terminal which does not request to use a multicast service set, the condition of signaling waste is effectively avoided, and the system performance is guaranteed.

Description

Transmission method and device of multicast service data

Technical Field

The present disclosure relates to the field of communications, and in particular, to a method and an apparatus for transmitting multicast service data.

Background

In the prior art, a Long Term Evolution (LTE) system supports Multimedia Broadcast Multicast Services (MBMS) in the following manner: a User Equipment (UE) acquires a service area identifier, carrier information, and Multicast service related Control information of a Multicast service, such as configuration information of a Multicast Control Channel (MCCH) or configuration information of a Single-Cell Multicast Control Channel (SC-MCCH), through system information, and then acquires, on the corresponding Multicast Control Channel, a plurality of Multicast service related Channel configuration information, such as a Multicast Traffic Channel (MTCH) or a Single-Cell Multicast Traffic Channel (SC-MTCH), based on the acquired Multicast service related Control Channel information, and finally selects, for a Multicast service of interest, a corresponding Multicast Traffic Channel to receive corresponding Multicast service data.

Referring to fig. 1, in the LTE system, in the prior art, a process of receiving multicast service data by a UE is controlled by a Multi-cell/Multicast Coordination Entity (MCE), and no matter whether the UE is in an idle state or a connected state, the UE can directly receive interested multicast service data on the premise of obtaining multicast service related control information and multicast service related channel configuration information.

However, in The fifth generation mobile communication technology New radio (5G NR) system, only The implementation procedure of The unicast technology is currently defined, and The implementation procedure of The multicast service is not yet defined, but The architecture of The fourth generation mobile communication technology (4G) system and The architecture of The system are different, so The 5G system cannot directly follow The operation procedure of The 4G system.

In view of the above, a new method flow needs to be redesigned for the 5G system to overcome the above drawbacks.

Disclosure of Invention

The embodiment of the disclosure provides a method and a device for transmitting multicast service data, which are used for realizing multicast service transmission in a 5G NR system.

The embodiment of the present disclosure provides the following specific technical solutions:

in a first aspect, a method for transmitting multicast service data includes:

determining at least one multicast service which allows the terminal to receive in a multicast mode based on a multicast service set, and generating corresponding multicast mode indication information based on the at least one multicast service;

and sending the multicast mode indication information to a terminal by adopting an air interface special signaling, and enabling the terminal to determine corresponding multicast service related channel configuration information based on the multicast mode indication information and receive service data of the at least one multicast service on a corresponding multicast service channel by adopting a multicast mode based on the multicast service related channel configuration information.

Optionally, generating corresponding multicast mode indication information based on the at least one multicast service includes:

generating a corresponding Radio Network Temporary Identifier (RNTI) based on the at least one multicast service, and taking the RNTI as multicast mode indication information;

sending the multicast mode indication information to a terminal by using an air interface dedicated signaling, and enabling the terminal to determine corresponding multicast service related channel configuration information based on the multicast mode indication information, and receiving service data of the at least one multicast service on a corresponding multicast service channel by using a multicast mode based on the multicast service related channel configuration information, including:

sending the RNTI to a terminal by adopting air interface special information, and enabling the terminal to execute the following operations: analyzing a multicast control channel based on the RNTI to obtain multicast service related channel configuration information corresponding to the at least one multicast service, and receiving service data of the at least one multicast service on a corresponding multicast service channel in a multicast mode based on the multicast service related channel configuration information.

generating corresponding multicast service related channel configuration information based on the at least one multicast service, and taking the multicast service related channel configuration information as multicast mode indication information;

sending the configuration information of the multicast service related channel to a terminal by adopting an air interface special signaling, and enabling the terminal to execute the following operations: and directly receiving the service data of the at least one multicast service on the corresponding multicast service channel in a multicast mode based on the obtained configuration information of the multicast service related channel.

generating at least one corresponding service identifier based on the at least one multicast service, and using the at least one service identifier as multicast mode indication information;

sending the multicast mode indication information to a terminal by using an air interface dedicated signaling, and enabling the terminal to determine corresponding multicast service related channel configuration information based on the multicast mode indication information, and receive service data of the at least one multicast service on a corresponding multicast service channel based on the multicast service related channel configuration information, including:

sending the at least one service identifier to a terminal by adopting an air interface special signaling, and enabling the terminal to execute the following operations: acquiring the multicast service related channel configuration information corresponding to the at least one service identifier from a multicast service related channel configuration information set issued from a network side, and receiving the service data of the at least one multicast service on a corresponding multicast service channel in a multicast mode based on the multicast service channel configuration information.

Optionally, the air interface dedicated signaling includes any one of:

radio resource control, RRC, signaling;

a medium access control layer control element, MAC CE;

and the physical layer downlink control information DCI.

In a second aspect, a method for transmitting multicast service data includes:

receiving multicast mode indication information sent by a network side by adopting air interface special signaling, wherein the multicast service information is generated based on at least one multicast service after the network side determines that the terminal is allowed to receive the multicast service in a multicast mode based on a multicast service set;

and determining corresponding multicast service related channel configuration information based on the multicast mode indication information, and receiving the service data of the at least one multicast service on a corresponding multicast service channel in a multicast mode based on the multicast service related channel configuration information.

Optionally, receiving the multicast mode indication information sent by the network side using the air interface dedicated signaling includes:

receiving multicast mode indication information sent by the network side by adopting an air interface special signaling, wherein the multicast mode indication information is a Radio Network Temporary Identifier (RNTI);

determining corresponding multicast service related channel configuration information based on the multicast mode indication information, and receiving service data of the at least one multicast service on a corresponding multicast service channel in a multicast mode based on the multicast service related channel configuration information, including:

analyzing a multicast control channel based on the received RNTI to obtain multicast service related channel configuration information corresponding to the at least one multicast service, and receiving service data of the at least one multicast service on a corresponding multicast service channel in a multicast mode based on the multicast service related channel configuration information.

receiving multicast mode indication information sent by the network side by adopting an air interface special signaling, wherein the multicast mode indication information is multicast service related channel configuration information of the at least one multicast service;

and directly receiving the service data of the at least one multicast service on the corresponding multicast service channel in a multicast mode based on the obtained configuration information of the multicast service related channel.

receiving multicast mode indication information sent by the network side by adopting an air interface special signaling, wherein the multicast mode indication information is at least one service identifier corresponding to the at least one multicast service;

and acquiring multicast service related channel configuration information corresponding to the at least one service identifier from a multicast service related channel information set issued by the network side based on the received at least one service identifier, and receiving service data of the at least one multicast service in a multicast mode on a corresponding multicast service channel based on the multicast service related channel configuration information.

Optionally, the air interface dedicated signaling includes any one of the following:

radio resource control, RRC, signaling;

a medium access layer control element MAC CE;

and the physical layer downlink control information DCI.

In a third aspect, a network device includes:

a memory for storing executable instructions;

a processor for reading and executing the executable instructions stored in the memory, performing the following processes:

determining at least one multicast service allowing the terminal to receive in a multicast mode based on a multicast service set, and generating corresponding multicast mode indication information based on the at least one multicast service;

Optionally, the processor is configured to generate corresponding multicast mode indication information based on the at least one multicast service, and to:

sending the multicast mode indication information to a terminal by using an air interface dedicated signaling, and enabling the terminal to determine corresponding multicast service related channel configuration information based on the multicast mode indication information, and receive service data of the at least one multicast service on a corresponding multicast service channel by using a multicast mode based on the multicast service related channel configuration information, wherein the processor is configured to:

sending the multicast mode indication information to a terminal by using an air interface dedicated signaling, so that the terminal determines corresponding multicast service related channel configuration information based on the multicast mode indication information, and receives service data of the at least one multicast service on a corresponding multicast service channel based on the multicast service related channel configuration information, wherein the processor is configured to:

sending the at least one service identifier to a terminal by adopting an air interface special signaling, and enabling the terminal to execute the following operations: and acquiring the multicast service related channel configuration information corresponding to the at least one service identifier from a multicast service related channel configuration information set issued by a network side, and receiving the service data of the at least one multicast service on a corresponding multicast service channel in a multicast mode based on the multicast service channel configuration information.

Optionally, the air interface dedicated signaling includes any one of:

radio resource control, RRC, signaling;

a medium access control layer control element, MAC CE;

and the physical layer downlink control information DCI.

In a fourth aspect, a terminal includes:

a memory for storing executable instructions;

Optionally, the processor is configured to receive multicast mode indication information sent by the network side using an air interface dedicated signaling, and configured to:

determining corresponding multicast service-related channel configuration information based on the multicast mode indication information, and receiving service data of the at least one multicast service in a multicast mode on a corresponding multicast service channel based on the multicast service-related channel configuration information, wherein the processor is configured to:

and acquiring the multicast service related channel configuration information corresponding to the at least one service identifier from a multicast service related channel information set issued by the network side based on the received at least one service identifier, and receiving the service data of the at least one multicast service in a multicast mode on a corresponding multicast service channel based on the multicast service related channel configuration information.

Optionally, the air interface dedicated signaling includes any one of:

radio resource control, RRC, signaling;

a medium access layer control element MAC CE;

and the physical layer downlink control information DCI.

In a fifth aspect, a network side device includes:

a generating unit, configured to determine, based on a multicast service set, at least one multicast service that allows the terminal to receive in a multicast mode, and generate corresponding multicast mode indication information based on the at least one multicast service;

and the transmission unit is used for sending the multicast mode indication information to the terminal by adopting an air interface special signaling, and enabling the terminal to determine corresponding multicast service related channel configuration information based on the multicast mode indication information and receive the service data of the at least one multicast service on a corresponding multicast service channel by adopting a multicast mode based on the multicast service related channel configuration information.

In a sixth aspect, a terminal includes:

a determining unit, configured to receive multicast mode indication information sent by a network side using air interface dedicated signaling, where the multicast service information is generated based on at least one multicast service after the network side determines, based on a multicast service set, that the terminal is allowed to receive in a multicast mode;

and the receiving unit is used for determining corresponding multicast service related channel configuration information based on the multicast mode indication information and receiving the service data of the at least one multicast service on a corresponding multicast service channel in a multicast mode based on the multicast service related channel configuration information.

In a seventh aspect, a storage medium, wherein instructions when executed by a processor, enable the processor to perform any of the above methods of the first aspect.

In an eighth aspect, a storage medium, wherein instructions when executed by a processor, enable the processor to perform the method of any of the second aspects.

In the embodiment of the disclosure, after determining at least one multicast service that allows a terminal to receive in a multicast mode, a network side sends multicast mode indication information generated based on the at least one multicast service to the terminal by using an air interface dedicated signaling, and the terminal receives service data of the at least one multicast service in a multicast mode on a corresponding multicast service channel based on multicast service related channel configuration information corresponding to the received multicast mode indication information; therefore, multicast service transmission is realized in the 5G NR system, and signaling is prevented from being sent to a terminal which does not request to use a multicast service set, so that the condition of signaling waste is effectively avoided, and the system performance is guaranteed; meanwhile, when a multicast mode is adopted, the service data is copied step by the router and the switch in the network and is sent to each terminal, so that the server resource can be saved, and the bandwidth resource of the network backbone can also be saved.

Drawings

Fig. 1 is a schematic diagram of an LTE system architecture in the prior art;

fig. 2 is a schematic diagram illustrating a flow of transmitting multicast service data according to an embodiment of the present disclosure;

fig. 3 is a schematic flowchart of multicast service transmission performed by using a first multicast mode indication information in the embodiment of the present disclosure;

fig. 4 is a schematic flowchart of multicast service transmission performed by using indication information of a second multicast mode in the embodiment of the present disclosure;

fig. 5 is a schematic flowchart of multicast service transmission performed by using indication information of a third multicast mode in the embodiment of the present disclosure;

fig. 6 is a physical architecture diagram of a base station according to an embodiment of the present disclosure;

fig. 7 is a schematic diagram of a physical architecture of a terminal according to an embodiment of the present disclosure;

FIG. 8 is a schematic diagram of a logic architecture of a base station in an embodiment of the present disclosure;

fig. 9 is a schematic diagram of a logic architecture of a terminal according to an embodiment of the disclosure.

Detailed Description

In order to implement multicast service transmission in a 5G NR system, in the embodiment of the present disclosure, after determining at least one multicast service that allows a terminal to receive in a multicast mode, a network side sends multicast mode indication information to the terminal by using an air interface dedicated signaling, and the terminal further obtains channel configuration information related to the multicast service based on the obtained multicast mode indication information, so as to receive service data in a multicast mode on a corresponding multicast service channel.

Preferred embodiments of the present disclosure will be described in further detail below with reference to the accompanying drawings.

Referring to fig. 2, in the embodiment of the present disclosure, a specific process for transmitting multicast service data is as follows:

step 200: and the terminal sends the multicast service set requested to be used to the network side.

Specifically, the terminal may select a plurality of multicast services that are interested in itself from the multicast services provided by the network side, form a multicast service set, and request the network side to use the multicast service set.

In practical application, the network side and the terminal side may agree in advance with a multicast service set that may be interested by the terminal side, or may configure the multicast service set that may be interested by the terminal side at a higher layer on the network side. In the embodiment of the present disclosure, only the example that the terminal reports the multicast service set to the network side is taken as an example for introduction, and details are not described herein again.

Step 210: the network side determines at least one multicast service which allows the terminal to receive in a multicast mode based on the received multicast service set.

Specifically, for each multicast service included in the multicast service set, the network side may respectively determine whether to allow the terminal to use the multicast service in the following manner, taking any one multicast service X in the multicast service set as an example:

the network side can calculate the total number of terminals currently using the multicast service X, and when the total number of the terminals is determined to reach a preset threshold value, the terminals are judged to receive the multicast service X in a multicast mode.

The prediction threshold values of the total number of terminals corresponding to different multicast services may be the same or different, and may be flexibly set according to actual application scenarios, which is not described herein again.

Step 220: and the network side generates corresponding multicast mode indication information based on the at least one multicast service.

Specifically, the network side may generate the multicast mode indication information in a plurality of ways, including but not limited to the following three ways:

a1, the Network side generates a corresponding Radio Network Temporary Identity (RNTI) corresponding to the at least one multicast service, and the RNTI is used as multicast mode indication information.

B1, the network side generates corresponding multicast service related channel configuration information corresponding to the at least one multicast service, and the corresponding multicast service related channel configuration information is used as multicast mode indication information.

And C1, the network side generates at least one corresponding service identifier corresponding to the at least one multicast service, and the at least one service identifier is used as multicast mode indication information.

Step 230: and the network side sends the multicast mode indication information to the terminal by adopting an air interface special signaling.

Optionally, there are multiple types of air interface dedicated signaling that may be adopted by the network side, including but not limited to the following three types:

through Radio Resource Control (RRC) signaling;

a Control unit (MAC CE) controlled by Media Access Control;

through the Downlink Control Information (DCI) of the physical layer.

Step 240: and the terminal determines corresponding multicast service related channel configuration information according to the received multicast mode indication information.

Specifically, the terminal may determine the corresponding multicast service related configuration information in, but not limited to, the following three manners.

And A2, if the multicast mode indication information is RNTI, the terminal can analyze the multicast control channel based on the obtained RNTI so as to obtain the configuration information of the multicast service related channel.

And B2, if the multicast mode indication information is multicast service related channel configuration information of at least one multicast service, the terminal can directly obtain the multicast service related channel configuration information.

And C2, if the multicast mode indication information is at least one service identifier, the terminal can acquire the multicast service related channel configuration information corresponding to the at least one service identifier from a multicast service related channel information set issued by the network side.

Step 250: and the terminal receives the service data of the at least one multicast service in a multicast mode on a corresponding multicast service channel based on the multicast service related information configuration information.

The above embodiments are further described in detail below using three different application scenarios.

Scene one: the multicast mode indication information is RNTI.

Referring to fig. 3, the detailed process of multicast service transmission between the network side and the terminal in the multicast mode is as follows:

step 300: the terminal sends a set requesting to use the multicast service to the network side.

Step 310: the network side determines at least one multicast service which allows the terminal to receive in a multicast mode based on the received multicast service set.

the network side can calculate the total number of terminals currently using the multicast service X, and when the total number of the terminals is determined to reach a preset threshold value, the terminals are judged to receive the multicast service X in a multicast mode, and on the other hand, if the total number of the terminals is determined to not reach the preset threshold value, the terminals are judged to receive the multicast service X at an air interface in a unicast mode.

On the other hand, if the network side determines that the terminal is not allowed to receive the service data of a certain service in a multicast mode, the network side may directly send the related information of the certain service to the terminal in a unicast mode.

Step 320: and the network side sends the dynamic RNTI to the terminal by adopting an air interface special signaling.

Specifically, the dynamic RNTI may be a Single Cell-RNTI (SC-RNTI).

Step 330: and the terminal analyzes the multicast control channel through the dynamic RNTI to obtain and determine corresponding multicast service related channel configuration information.

Specifically, after receiving the dynamic RNTI, the terminal may analyze the multicast control channel using the dynamic RNTI, and obtain a message including configuration information of a multicast service related channel of each multicast service in the multicast service set, for example, an SCPTMConfiguration message.

In the embodiment of the present disclosure, the dynamic RNTI is utilized to obtain the multicast service related configuration information of all multicast services received in a multicast manner, so that when the network side sends the dynamic RNTI to the terminal by using the air interface dedicated signaling, the terminal is allowed to use all multicast services in the multicast service set by default.

On the other hand, in the embodiment of the present disclosure, it is assumed that the multicast service set includes three types of multicast services, which are respectively: multicast service 1, multicast service 2, and multicast service 3, which are assumed to correspond to multicast service channel 1, multicast service channel 2, and multicast service channel 3, respectively.

Then, the terminal includes the multicast service channel configuration information of each of the multicast service channel 1, the multicast service channel 2 and the multicast service channel 3 from the multicast service related channel configuration information resolved from the multicast control channel according to the obtained dynamic RNTI.

Step 340: the terminal receives the service data of the multicast service 1 on the multicast service channel 1 by adopting a multicast mode.

Step 350: the terminal receives the service data of the multicast service 2 in a multicast mode on the multicast service channel 2.

Step 360: the terminal receives the service data of the multicast service 3 on the multicast service channel 3 by adopting a multicast mode.

Therefore, the terminal can receive the service data of the interested multicast service on different multicast service channels respectively by adopting a multicast mode.

Scene two: the multicast mode indication information is multicast service related channel configuration information of at least one multicast service.

Referring to fig. 4, the detailed process of multicast transmission by the network side and the terminal side in the multicast mode is as follows:

step 400: and the terminal sends the multicast service set requested to be used to the network side.

Step 410: the network side determines at least one multicast service which allows the terminal to receive in a multicast mode based on the received multicast service set.

Step 420: and the network side sends the multicast service related channel configuration information of the at least one multicast service to the terminal by adopting an air interface special signaling.

Step 430: and the terminal directly receives the multicast service related channel configuration information of the at least one multicast service.

In the embodiment of the present disclosure, it is assumed that the multicast service set includes three services, which are: multicast service 1, multicast service 2, and multicast service 3 are assumed to correspond to multicast service channel 1, multicast service channel 2, and multicast service channel 3, respectively.

Further, it is assumed that the configuration information of the multicast service related channel sent by the network side to the terminal only includes the configuration information including the multicast service channel 2 and the multicast service channel 3, that is, the terminal is only allowed to use the multicast service 2 and the multicast service 3 in a multicast manner.

Step 440: and the terminal receives the service data of the multicast service 1 in a unicast mode.

Step 450: the terminal receives the service data of the multicast service 2 in a multicast mode on the multicast service channel 2.

Step 460: the terminal receives the service data of the multicast service 3 on the multicast service channel 3 by adopting a multicast mode.

Therefore, the terminal can receive the service data which is not allowed to be received by the network side in the multicast mode in the unicast mode, and respectively adopt the multicast mode on other different multicast service channels, and receive the service data which is allowed to be received by the network side in the multicast mode.

Scene three: the multicast mode indication information is at least one service identifier.

Referring to fig. 5, the detailed procedure of the network side and the terminal for multicast service transmission is as follows:

step 500: and the terminal sends the multicast service set requested to be used to the network side.

Step 510: the network side determines at least one multicast service which allows the terminal to receive in a multicast mode based on the received multicast service set.

Step 520: and the network side sends at least one service identifier corresponding to the at least one multicast service to the terminal by adopting an air interface special signaling.

Step 530: and the terminal receives the at least one service identification.

In the embodiment of the present disclosure, it is assumed that the service set includes three services, which are respectively: multicast service 1, multicast service 2, and multicast service 3 are assumed to correspond to multicast service channel 1, multicast service channel 2, and multicast service channel 3, respectively.

Specifically, in the embodiment of the present disclosure, two service identifiers are assumed to be included, which are respectively: service identifier 2 and service identifier 3, which are assumed to correspond to multicast service 2 and multicast service 3, respectively.

Step 540: and the network terminal sends the configuration information set of the multicast service related channels to the terminal.

Specifically, there is no definite chronological order among steps 500-530 and 540.

Step 550: and the terminal acquires the configuration information of the multicast service related channel corresponding to the at least one service identifier from the acquired configuration information set of the multicast service related channel.

Specifically, it is assumed that the configuration information set of the multicast service related channel sent by the network side to the terminal includes: multicast traffic channel configuration information 1 of a multicast traffic channel 1, multicast traffic channel configuration information 2 of a multicast traffic channel 2, and multicast traffic channel configuration information 3 of a multicast traffic channel 3.

Correspondingly, since the terminal only receives the service identifier 2 and the service identifier 3 issued by the network side, the terminal receives the multicast service channel configuration information 1 of the multicast service channel 1, the multicast service channel configuration information 2 of the multicast service channel 2, and the multicast service channel configuration information 3 of the multicast service channel 3. However, the terminal only allows to use the multicast service channel configuration information 2 of the multicast service channel 2 and the multicast service channel configuration information 3 of the multicast service channel 3 corresponding to the service identifier 2 and the service identifier 3 sent by the network, and receive the service data of the corresponding multicast service 2 and the service data of the multicast service 3 by adopting a multicast mode.

Step 560: and the terminal receives the service data of the multicast service 1 in a unicast mode.

Step 570: the terminal receives the service data of the multicast service 2 in a multicast mode on the multicast service channel 2.

Step 580: the terminal receives the service data of the multicast service 3 on the multicast service channel 3 by adopting a multicast mode.

Based on the same inventive concept, referring to fig. 6, an embodiment of the present disclosure provides a network side device (e.g., a base station), which at least includes:

a memory 601 for storing executable instructions;

a processor 602, configured to read and execute the executable instructions stored in the memory, and perform the following processes:

Optionally, the processor 602 is configured to generate corresponding multicast mode indication information based on the at least one multicast service, and to:

generating corresponding RNTI based on the at least one multicast service, and taking the RNTI as multicast mode indication information;

sending the multicast mode indication information to a terminal by using an air interface dedicated signaling, and instructing the terminal to determine corresponding multicast service related channel configuration information based on the multicast mode indication information, and receive service data of the at least one multicast service on a corresponding multicast service channel by using a multicast mode based on the multicast service related channel configuration information, where the processor 602 is configured to:

sending the RNTI to a terminal by adopting air interface special information, and enabling the terminal to execute the following operations: analyzing the multicast control channel based on the RNTI to obtain the configuration information of the multicast service related channel corresponding to the at least one multicast service, and receiving the service data of the at least one multicast service on the corresponding multicast service channel in a multicast mode based on the configuration information of the multicast service related channel.

sending the multicast mode indication information to a terminal by using an air interface dedicated signaling, instructing the terminal to determine corresponding multicast service related channel configuration information based on the multicast mode indication information, and receiving service data of the at least one multicast service on a corresponding multicast service channel by using a multicast mode based on the multicast service related channel configuration information, where the processor 602 is configured to:

sending the multicast mode indication information to a terminal by using an air interface dedicated signaling, and instructing the terminal to determine corresponding multicast service related channel configuration information based on the multicast mode indication information, and receive service data of the at least one multicast service on a corresponding multicast service channel based on the multicast service related channel configuration information, where the processor 602 is configured to:

RRC signaling;

MAC CE；

DCI。

based on the same inventive concept, referring to fig. 7, an embodiment of the present disclosure provides a terminal, which at least includes:

a memory 701 for storing executable instructions;

a processor 702 for reading and executing executable instructions stored in the memory, and performing the following processes:

and determining corresponding multicast service related channel configuration information based on the multicast mode indication information, and receiving service data of the at least one multicast service on a corresponding multicast service channel in a multicast mode based on the multicast service related channel configuration information.

Optionally, the processor 702 is configured to receive multicast mode indication information sent by the network side using an air interface dedicated signaling, and configured to:

receiving multicast mode indication information sent by the network side by adopting an air interface special signaling, wherein the multicast mode indication information is RNTI (radio network temporary identifier);

based on the multicast mode indication information, determining corresponding multicast service related channel configuration information, and based on the multicast service related channel configuration information, receiving service data of the at least one multicast service in a multicast mode on a corresponding multicast service channel, where the processor 702 is configured to:

Optionally, the air interface dedicated signaling includes any one of:

RRC signaling;

MAC CE；

DCI。

based on the same inventive concept, in the embodiments of the present disclosure, a network-side device is provided, as shown in fig. 8, and at least includes: a generating unit 801 and a transmitting unit 802, wherein,

a generating unit 801, configured to determine, based on a multicast service set, at least one multicast service that the terminal is allowed to receive in a multicast mode, and generate corresponding multicast mode indication information based on the at least one multicast service;

a transmission unit 802, configured to send the multicast mode indication information to a terminal by using an air interface dedicated signaling, and enable the terminal to determine corresponding multicast service related channel configuration information based on the multicast mode indication information, and receive service data of the at least one multicast service on a corresponding multicast service channel by using a multicast mode based on the multicast service related channel configuration information.

The generating unit 801 and the transmitting unit 802 cooperate with each other to implement any one of the methods performed by the base station described in the embodiments of the present disclosure.

Based on the same inventive concept, referring to fig. 9, an embodiment of the present disclosure provides a terminal, which at least includes: a determining unit 901 and a receiving unit 902, wherein,

a determining unit 901, configured to receive multicast mode indication information sent by a network side using air interface dedicated signaling, where the multicast service information is generated based on at least one multicast service after the network side determines, based on a multicast service set, that the terminal is allowed to receive in a multicast mode;

a receiving unit 902, configured to determine corresponding multicast service related channel configuration information based on the multicast mode indication information, and receive service data of the at least one multicast service in a multicast mode on a corresponding multicast service channel based on the multicast service related channel configuration information.

The determining unit 901 and the receiving unit 902 cooperate with each other to implement any method executed by the terminal described in the embodiments of the present disclosure.

Based on the same inventive concept, the embodiments of the present disclosure provide a storage medium, and when instructions in the storage medium are executed by a processor, the processor can execute any one of the methods executed by the base station in the above-mentioned flow.

Based on the same inventive concept, the embodiments of the present disclosure provide a storage medium, and when instructions in the storage medium are executed by a processor, the processor can execute any one of the methods executed by the terminal in the above-described flow.

To sum up, in the embodiment of the present disclosure, after determining at least one multicast service that a terminal is allowed to receive in a multicast manner, a network side sends, to the terminal, multicast manner indication information generated based on the at least one multicast service by using an air interface dedicated signaling, and the terminal receives, on a corresponding multicast service channel, service data of the at least one multicast service in a multicast manner based on multicast service related channel configuration information corresponding to the received multicast manner indication information; therefore, multicast service transmission is realized in the 5G NR system, and signaling is prevented from being sent to a terminal which does not request to use the multicast service set, so that the condition of signaling waste is effectively avoided, and the system performance is guaranteed. Meanwhile, when a multicast mode is adopted, the service data is copied step by the router and the switch in the network and is sent to each terminal, so that the server resource can be saved, and the bandwidth resource of the network backbone can also be saved.

As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present disclosure have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the disclosure.

It will be apparent to those skilled in the art that various changes and modifications may be made to the disclosed embodiments without departing from the spirit and scope of the disclosed embodiments. Thus, if such modifications and variations of the embodiments of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is also intended to encompass such modifications and variations.

Claims

1. A method for transmitting multicast service data is characterized by comprising the following steps:

determining at least one multicast service which allows a terminal to receive in a multicast mode based on a multicast service set, and generating corresponding multicast mode indication information based on the at least one multicast service;

sending the multicast mode indication information to a terminal by adopting an air interface special signaling, wherein the multicast mode indication information is used for determining corresponding multicast service related channel configuration information, and receiving service data of at least one multicast service on a corresponding multicast service channel by adopting a multicast mode based on the multicast service related channel configuration information;

generating corresponding multicast mode indication information based on the at least one multicast service, including:

sending the multicast mode indication information to a terminal by using an air interface dedicated signaling, where the multicast mode indication information is used to determine corresponding multicast service related channel configuration information, and receiving service data of the at least one multicast service on a corresponding multicast service channel by using a multicast mode based on the multicast service related channel configuration information, and the method includes:

the RNTI is sent to a terminal by adopting air interface special information, and the RNTI is used for indicating the terminal to execute the following operations: analyzing a multicast control channel based on the RNTI to obtain multicast service related channel configuration information corresponding to the at least one multicast service, and receiving service data of the at least one multicast service on a corresponding multicast service channel in a multicast mode based on the multicast service related channel configuration information.

2. The method of claim 1, wherein generating the corresponding multicast mode indication information based on the at least one multicast service comprises:

sending the configuration information of the multicast service related channel to a terminal by adopting an air interface special signaling, wherein the configuration information of the multicast service related channel is used for indicating the terminal to execute the following operations: and directly receiving the service data of the at least one multicast service on the corresponding multicast service channel in a multicast mode based on the obtained configuration information of the multicast service related channel.

3. The method of claim 1, wherein generating the corresponding multicast mode indication information based on the at least one multicast service comprises:

sending the multicast mode indication information to a terminal by using an air interface dedicated signaling, where the multicast mode indication information is used to determine corresponding multicast service related channel configuration information, and receive service data of the at least one multicast service on a corresponding multicast service channel based on the multicast service related channel configuration information, and the method includes:

sending the at least one service identifier to a terminal by using an air interface dedicated signaling, where the at least one service identifier is used to instruct the terminal to perform the following operations: and acquiring the multicast service related channel configuration information corresponding to the at least one service identifier from a multicast service related channel configuration information set issued by a network side, and receiving the service data of the at least one multicast service on a corresponding multicast service channel in a multicast mode based on the multicast service channel configuration information.

4. The method of any of claims 1 to 3, wherein the air interface dedicated signaling comprises any of:

radio resource control, RRC, signaling;

a medium access control layer control element, MAC CE;

and the physical layer downlink control information DCI.

5. A method for transmitting multicast service data is characterized by comprising the following steps:

receiving multicast mode indication information sent by a network side by adopting air interface special signaling, wherein the multicast mode indication information is generated based on at least one multicast service after the network side determines at least one multicast service which allows a terminal to adopt a multicast mode to receive based on a multicast service set;

determining corresponding multicast service related channel configuration information based on the multicast mode indication information, and receiving service data of the at least one multicast service on a corresponding multicast service channel in a multicast mode based on the multicast service related channel configuration information;

receiving the multicast mode indication information sent by the network side by using the air interface dedicated signaling includes:

6. The method of claim 5, wherein receiving the multicast mode indication information sent by the network side using air interface dedicated signaling comprises:

7. The method of claim 5, wherein receiving the indication information of the multicast mode sent by the network side using the air interface dedicated signaling comprises:

8. The method of any of claims 5 to 7, wherein the air interface dedicated signaling comprises any of:

radio resource control, RRC, signaling;

a medium access layer control element MAC CE;

and the physical layer downlink control information DCI.

9. A network device, comprising:

a memory for storing executable instructions;

wherein, based on the at least one multicast service, generating corresponding multicast mode indication information, the processor is configured to:

generating a corresponding Radio Network Temporary Identifier (RNTI) based on the at least one multicast service, and using the RNTI as multicast mode indication information;

sending the multicast mode indication information to a terminal by using an air interface dedicated signaling, where the multicast mode indication information is used to determine corresponding multicast service related channel configuration information, and receive service data of the at least one multicast service on a corresponding multicast service channel by using a multicast mode based on the multicast service related channel configuration information, and the processor is configured to:

10. The network device of claim 9, wherein the processor is configured to generate corresponding multicast mode indication information based on the at least one multicast service, and to:

11. The network device of claim 9, wherein the processor is configured to generate corresponding multicast mode indication information based on the at least one multicast service, and to:

sending the multicast mode indication information to a terminal by using an air interface dedicated signaling, where the multicast mode indication information is used to determine corresponding multicast service related channel configuration information, and receive service data of the at least one multicast service on a corresponding multicast service channel based on the multicast service related channel configuration information, and the processor is configured to:

12. The network device of any of claims 9-11, wherein the air interface dedicated signaling comprises any of:

radio resource control, RRC, signaling;

a medium access control layer control element, MAC CE;

and the physical layer downlink control information DCI.

13. A terminal, comprising:

a memory for storing executable instructions;

receiving multicast mode indication information sent by a network side by adopting air interface special signaling, wherein the multicast mode indication information is generated based on at least one multicast service after the network side determines at least one multicast service which is allowed to be received by the terminal by adopting a multicast mode based on a multicast service set;

wherein, receiving the multicast mode indication information sent by the network side by using the air interface dedicated signaling, the processor is configured to:

14. The terminal of claim 13, wherein the processor is configured to receive multicast mode indication information sent by the network side using air interface dedicated signaling, and wherein the processor is configured to:

determining corresponding multicast service related channel configuration information based on the multicast mode indication information, and receiving service data of the at least one multicast service on a corresponding multicast service channel in a multicast mode based on the multicast service related channel configuration information, wherein the processor is configured to:

15. The terminal of claim 13, wherein the processor is configured to receive multicast mode indication information sent by the network side using air interface dedicated signaling, and wherein the processor is configured to:

16. The terminal according to any of claims 13-15, wherein the air interface dedicated signaling comprises any of:

radio resource control, RRC, signaling;

a medium access layer control element MAC CE;

and the physical layer downlink control information DCI.

17. A network-side device, comprising:

the generating unit is used for determining at least one multicast service which allows the terminal to adopt a multicast mode to receive based on the multicast service set and generating corresponding multicast mode indication information based on the at least one multicast service;

a transmission unit, configured to send the multicast mode indication information to a terminal by using an air interface dedicated signaling, where the multicast mode indication information is used to determine corresponding multicast service related channel configuration information, and receive service data of the at least one multicast service on a corresponding multicast service channel by using a multicast mode based on the multicast service related channel configuration information;

18. A terminal, comprising:

a determining unit, configured to receive multicast mode indication information sent by a network side using air interface dedicated signaling, where the multicast mode indication information is generated based on at least one multicast service after the network side determines, based on a multicast service set, that the terminal is allowed to receive in a multicast mode;

a receiving unit, configured to determine corresponding multicast service related channel configuration information based on the multicast mode indication information, and receive service data of the at least one multicast service in a multicast mode on a corresponding multicast service channel based on the multicast service related channel configuration information;

19. A storage medium, wherein instructions in the storage medium, when executed by a processor, enable the processor to perform the method of any one of claims 1-4.

20. A storage medium, wherein instructions of the storage medium, when executed by a processor, enable the processor to perform the method of any one of claims 5-8.