WO2025031137A1

WO2025031137A1 - Multicast configuration indication methods and apparatuses

Info

Publication number: WO2025031137A1
Application number: PCT/CN2024/106942
Authority: WO
Inventors: 王婷婷
Original assignee: Shanghai National Engineering Research Center of Digital Television Co Ltd
Current assignee: Shanghai National Engineering Research Center of Digital Television Co Ltd
Priority date: 2023-08-04
Filing date: 2024-07-23
Publication date: 2025-02-13
Anticipated expiration: 2026-02-04
Also published as: CN117042066A

Abstract

Multicast configuration indication methods and apparatuses. A method comprises: generating MBS multicast configuration information of a serving cell, generating indication information, and sending the MBS multicast configuration information of the serving cell and the indication information to a user device. The other method comprises: acquiring the MBS multicast configuration information of the serving cell, and acquiring the indication information, the indication information being used for indicating whether MBS session information, corresponding to multicast services, among the MBS multicast configuration information of the serving cell is the same as MBS session information, corresponding to multicast services, among MBS multicast configuration information of an adjacent cell; and when the MBS session information of the serving cell is the same as that of the adjacent cell, and the user device moves from the serving cell to the adjacent cell, using the MBS session information of the serving cell to continue to receive the multicast services.

Description

A multicast configuration indication method and device

Technical Field

本发明涉及一种通信技术领域，尤其涉及一种多播配置指示方法及装置。The present invention relates to the field of communication technology, and in particular to a multicast configuration indication method and device.

Background Art

随着互联网的迅速发展和大屏幕多功能用户设备的普及，出现了大量移动数据多媒体业务和各种高带宽多媒体业务，为了有效利用移动网络资源，3GPP提出了多媒体广播多播业务，通过一个数据源向多个目标用户设备传送数据的技术，实现了网络资源的共享，提高了网络资源的利用率。考虑到LTE系统提出的MBS业务传输机制与单播业务传输机制完全独立，需要建立独立的基站，通过单独组网的方式才能实现MBS业务的传输和接收。由此，3GPP R17所定义的5G系统中提出，基站可以同时传输单播业务和多播业务，进而可以采用现有的基站实现多播业务的收发传输。With the rapid development of the Internet and the popularization of large-screen multi-functional user devices, a large number of mobile data multimedia services and various high-bandwidth multimedia services have emerged. In order to effectively utilize mobile network resources, 3GPP proposed multimedia broadcast multicast services, which transmit data from one data source to multiple target user devices, realizing the sharing of network resources and improving the utilization of network resources. Considering that the MBS service transmission mechanism proposed by the LTE system is completely independent of the unicast service transmission mechanism, it is necessary to establish an independent base station and realize the transmission and reception of MBS services through a separate networking method. Therefore, the 5G system defined by 3GPP R17 proposes that the base station can transmit unicast services and multicast services at the same time, and then the existing base station can be used to realize the transmission and reception of multicast services.

然而，R17所针对的是处于连接态下的UE的多播业务接收机制，对于3GPP新引入的RRC_INACTIVE(也可称为RRC非激活态)的UE，现今仍未提出一套完整的、显著高效的、受广泛认可的多播业务接收机制。最新的会议研究讨论提出：基站在UE当前所在的服务小区范围内下发MBS多播配置信息，使处于RRC非激活态下的UE根据MBS多播配置信息进行配置，以在当前所在的服务小区成功接收对应的多播业务。However, R17 is aimed at the multicast service reception mechanism of UE in the connected state. For the UE in RRC_INACTIVE (also known as RRC inactive state) newly introduced by 3GPP, there is still no complete, significantly efficient and widely recognized multicast service reception mechanism. The latest conference research and discussion proposed: the base station sends MBS multicast configuration information within the service cell where the UE is currently located, so that the UE in the RRC inactive state can be configured according to the MBS multicast configuration information to successfully receive the corresponding multicast service in the current service cell.

但是，发明人在执行接收的过程中，发现最新研究至少还存在如下问题：处于RRC非激活态的UE在服务小区接收多播业务，若UE发生移动，从服务小区移动到相邻小区后，还需要获取基站在相邻小区范围内下发的MBS多播配置信息并完成配置，UE才能继续接收多播业务，这可能导致传输时延、数据包丢失等现象，进而降低UE接收MBS业务的连续性。However, during the reception process, the inventor discovered that the latest research still has at least the following problems: when a UE in an RRC inactive state receives multicast services in a serving cell, if the UE moves from the serving cell to an adjacent cell, it is also necessary to obtain the MBS multicast configuration information sent by the base station within the adjacent cell and complete the configuration before the UE can continue to receive the multicast services. This may cause transmission delays, data packet loss, etc., thereby reducing the continuity of the UE's reception of MBS services.

因此，现有技术亟需一种多播配置提示方法。Therefore, the prior art is in urgent need of a multicast configuration prompt method.

发明内容Summary of the invention

针对目前处于RRC非激活态下接收MBS业务的用户设备发生移动时存在的上述问题，本发明提供一种多播配置指示方法及装置。In view of the above problems existing when a user equipment receiving MBS services in an RRC inactive state moves, the present invention provides a multicast configuration indication method and device.

提供一种多播配置指示方法，方法由网络设备执行，方法包括：A multicast configuration indication method is provided, the method being executed by a network device, and the method comprising:

生成服务小区的MBS多播配置信息，MBS多播配置信息包括对应于多播业务的MBS 会话信息，使处于RRC非激活态下的用户设备在服务小区内接收多播业务时，以服务小区的MBS多播配置信息中的MBS会话信息进行接收；Generate MBS multicast configuration information for the serving cell, the MBS multicast configuration information including the MBS corresponding to the multicast service Session information, so that when a user equipment in an RRC inactive state receives a multicast service in a serving cell, it receives the service using the MBS session information in the MBS multicast configuration information of the serving cell;

生成指示信息，指示信息用于指示服务小区的MBS多播配置信息中对应于多播业务的MBS会话信息，和相邻小区的MBS多播配置信息中对应于多播业务的MBS会话信息是否相同；Generate indication information, where the indication information is used to indicate whether the MBS session information corresponding to the multicast service in the MBS multicast configuration information of the serving cell and the MBS session information corresponding to the multicast service in the MBS multicast configuration information of the neighboring cell are the same;

将服务小区的MBS多播配置信息和指示信息发送至用户设备，如果服务小区和相邻小区的MBS会话信息相同，用户设备从服务小区移动至相邻小区时，将以服务小区的MBS会话信息继续接收多播业务。The MBS multicast configuration information and indication information of the serving cell are sent to the user equipment. If the MBS session information of the serving cell and the neighboring cell is the same, when the user equipment moves from the serving cell to the neighboring cell, it will continue to receive the multicast service with the MBS session information of the serving cell.

提供一种多播配置指示方法，方法由用户设备执行，方法包括：A multicast configuration indication method is provided, the method being executed by a user equipment, and the method comprising:

获取服务小区的MBS多播配置信息，MBS多播配置信息包括对应于多播业务的MBS会话信息，使处于RRC非激活态下的用户设备在服务小区内接收多播业务时，以服务小区的MBS多播配置信息中的MBS会话信息进行接收；Acquire MBS multicast configuration information of the serving cell, the MBS multicast configuration information including MBS session information corresponding to the multicast service, so that when a user equipment in an RRC inactive state receives the multicast service in the serving cell, the user equipment receives the multicast service using the MBS session information in the MBS multicast configuration information of the serving cell;

获取指示信息，指示信息用于指示服务小区的MBS多播配置信息中对应于多播业务的MBS会话信息，和相邻小区的MBS多播配置信息中对应于多播业务的MBS会话信息是否相同；Acquire indication information, where the indication information is used to indicate whether the MBS session information corresponding to the multicast service in the MBS multicast configuration information of the serving cell and the MBS session information corresponding to the multicast service in the MBS multicast configuration information of the neighboring cell are the same;

如果服务小区和相邻小区的MBS会话信息相同，用户设备从服务小区移动至相邻小区时，将以服务小区的MBS会话信息继续接收多播业务。If the MBS session information of the serving cell and the neighboring cell is the same, when the user equipment moves from the serving cell to the neighboring cell, it will continue to receive the multicast service with the MBS session information of the serving cell.

提供一种多播配置指示装置，包括：A multicast configuration indication device is provided, comprising:

生成模块，包括：Generate modules, including:

第一生成单元，用于生成服务小区的MBS多播配置信息，MBS多播配置信息包括对应于多播业务的MBS会话信息，使处于RRC非激活态下的用户设备在服务小区内接收多播业务时，以服务小区的MBS多播配置信息中的MBS会话信息进行接收；A first generating unit is configured to generate MBS multicast configuration information of a serving cell, wherein the MBS multicast configuration information includes MBS session information corresponding to a multicast service, so that when a user equipment in an RRC inactive state receives a multicast service in the serving cell, the user equipment receives the multicast service using the MBS session information in the MBS multicast configuration information of the serving cell;

第二生成单元，用于生成指示信息，指示信息用于指示服务小区的MBS多播配置信息中对应于多播业务的MBS会话信息，和相邻小区的MBS多播配置信息中对应于多播业务的MBS会话信息是否相同；a second generating unit, configured to generate indication information, the indication information being used to indicate whether the MBS session information corresponding to the multicast service in the MBS multicast configuration information of the serving cell and the MBS session information corresponding to the multicast service in the MBS multicast configuration information of the neighboring cell are the same;

发送模块，用于将服务小区的MBS多播配置信息和指示信息发送至用户设备，如果服务小区和相邻小区的MBS会话信息相同，用户设备从服务小区移动至相邻小区时，将以服务小区的MBS会话信息继续接收多播业务。The sending module is used to send the MBS multicast configuration information and indication information of the serving cell to the user equipment. If the MBS session information of the serving cell and the neighboring cell is the same, when the user equipment moves from the serving cell to the neighboring cell, it will continue to receive the multicast service with the MBS session information of the serving cell.

接收模块，用于接收服务小区的MBS多播配置信息，MBS多播配置信息包括对应于多播业务的MBS会话信息，使处于RRC非激活态下的用户设备在服务小区内接收多播业务时，以服务小区的MBS多播配置信息中的MBS会话信息进行接收；以及The receiving module is used to receive MBS multicast configuration information of the serving cell, wherein the MBS multicast configuration information includes MBS session information corresponding to the multicast service, so that when the user equipment in the RRC inactive state receives the multicast service in the serving cell, receiving the MBS session information in the MBS multicast configuration information of the serving cell; and

接收指示信息，指示信息用于指示服务小区的MBS多播配置信息中对应于多播业务的MBS会话信息，和相邻小区的MBS多播配置信息中对应于多播业务的MBS会话信息是否相同；receiving indication information, where the indication information is used to indicate whether the MBS session information corresponding to the multicast service in the MBS multicast configuration information of the serving cell and the MBS session information corresponding to the multicast service in the MBS multicast configuration information of the neighboring cell are the same;

处理模块，如果服务小区和相邻小区的MBS会话信息相同，用户设备从服务小区移动至相邻小区时，将以服务小区的MBS会话信息继续接收多播业务。The processing module, if the MBS session information of the serving cell and the neighboring cell is the same, when the user equipment moves from the serving cell to the neighboring cell, it will continue to receive the multicast service with the MBS session information of the serving cell.

提供一种基站，包括处理器和存储器，所述存储器设置为存储计算机程序，所述计算机程序被所述处理器执行时，使得所述处理器实现如上述发送指示信息的多播配置指示方法。A base station is provided, comprising a processor and a memory, wherein the memory is configured to store a computer program, and when the computer program is executed by the processor, the processor implements the multicast configuration indication method for sending indication information as described above.

提供一种终端，包括处理器和存储器，所述存储器设置为存储计算机程序，所述计算机程序被所述处理器执行时，使得所述处理器实现上述接收指示信息的多播配置指示方法。A terminal is provided, comprising a processor and a memory, wherein the memory is configured to store a computer program, and when the computer program is executed by the processor, the processor implements the multicast configuration indication method for receiving indication information.

一种计算机可读存储介质，包括计算机程序，所述计算机程序被处理器执行时，使得所述处理器实现所述任一项方法。A computer-readable storage medium comprises a computer program, and when the computer program is executed by a processor, the processor is enabled to implement any one of the methods.

本发明的有益效果：引入一种指示信息，通过指示信息可以使用户设备明确当前所在的服务小区的MBS多播配置信息中对应于多播业务的MBS会话信息，和相邻小区中同种多播业务的MBS会话信息是否相同，当UE从服务小区移动至相邻小区时，可以根据指示结果，决定是否直接使用服务小区的MBS会话信息，继续接收多播业务，可以避免出现传输时延、数据包丢失等现象，进而提高UE接收MBS业务的连续性。The beneficial effects of the present invention are as follows: an indication information is introduced, through which the user equipment can clearly understand whether the MBS session information corresponding to the multicast service in the MBS multicast configuration information of the current serving cell is the same as the MBS session information of the same multicast service in the adjacent cell. When the UE moves from the serving cell to the adjacent cell, it can decide whether to directly use the MBS session information of the serving cell to continue receiving the multicast service based on the indication result, thereby avoiding transmission delay, data packet loss and the like, thereby improving the continuity of the UE receiving the MBS service.

BRIEF DESCRIPTION OF THE DRAWINGS

图1用于在本发明的一种实施方式中，发送指示信息的流程示意图；FIG1 is a schematic diagram of a process for sending indication information in one embodiment of the present invention;

图2用于在本发明的一种实施方式中，接收指示信息的流程示意图；FIG. 2 is a schematic diagram of a process for receiving indication information in one embodiment of the present invention;

图3用于在本发明的一种实施方式中，发送装置的结构示意图；FIG3 is a schematic structural diagram of a sending device in one embodiment of the present invention;

图4用于在本发明的一种实施方式中，接收装置的结构示意图。FIG. 4 is a schematic structural diagram of a receiving device in one embodiment of the present invention.

DETAILED DESCRIPTION

下面结合附图和具体实施例对本发明作进一步说明，但不作为本发明的限定。The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

本发明提供一种多播配置指示方法及装置，解决现有技术中的问题，通过引入一种指示信息，通过指示信息可以指示服务小区和相邻小区的MBS会话信息是否相同，可以使UE从服务小区移动到相邻小区时，根据指示结果决定是否直接使用服务小区的MBS会话信息，继续接收多播业务，避免导致因进入相邻小区后需要重新接收MBS多播配置信息，而出现传输时延、数据包丢失等现象。The present invention provides a multicast configuration indication method and device to solve the problems in the prior art. By introducing an indication information, the indication information can indicate whether the MBS session information of the serving cell and the neighboring cell are the same, so that when the UE moves from the serving cell to the neighboring cell, it can decide whether to directly use the MBS session information of the serving cell according to the indication result. Continue to receive multicast services to avoid transmission delays, data packet losses, etc. caused by the need to re-receive MBS multicast configuration information after entering an adjacent cell.

首先提供的一种多播配置指示方法，方法由网络设备执行，方法包括：First, a multicast configuration indication method is provided, the method is executed by a network device, and the method includes:

生成服务小区的MBS多播配置信息，MBS多播配置信息包括对应于多播业务的MBS会话信息，使处于RRC非激活态下的用户设备在服务小区内接收多播业务时，以服务小区的MBS多播配置信息中的MBS会话信息进行接收；Generate MBS multicast configuration information of the serving cell, the MBS multicast configuration information including MBS session information corresponding to the multicast service, so that when a user equipment in an RRC inactive state receives the multicast service in the serving cell, the user equipment receives the multicast service using the MBS session information in the MBS multicast configuration information of the serving cell;

具体地，考虑到如果处于RRC非激活态的UE在服务小区接收多播业务时，如果UE发生移动，从服务小区移动到相邻小区的过程中，要经历小区重选、小区预留和接入限制等操作，并且在UE进入相邻小区后，还需要获取基站在相邻小区范围内周期性下发的MBS多播配置信息并完成配置，UE才能继续接收多播业务。由此，本发明提供一种多播配置指示方法，网络设备生成MBS多播配置信息和指示信息，指示信息用于指示服务小区的MBS多播配置信息中的对应于该UE接收的该多播业务的MBS会话信息与相邻小区的MBS会话信息是否相同，如果相同，则UE移动至相邻小区后，可以直接使用已配置的服务小区的MBS会话信息接收多播业务，可以避免导致出现传输时延、数据包丢失等现象，提高MBS业务接收连续性。Specifically, considering that if a UE in an RRC inactive state receives a multicast service in a serving cell, if the UE moves, in the process of moving from the serving cell to the adjacent cell, it needs to go through operations such as cell reselection, cell reservation and access restriction, and after the UE enters the adjacent cell, it needs to obtain the MBS multicast configuration information periodically sent by the base station within the adjacent cell range and complete the configuration, so that the UE can continue to receive the multicast service. Therefore, the present invention provides a multicast configuration indication method, in which a network device generates MBS multicast configuration information and indication information, and the indication information is used to indicate whether the MBS session information corresponding to the multicast service received by the UE in the MBS multicast configuration information of the serving cell is the same as the MBS session information of the adjacent cell. If they are the same, after the UE moves to the adjacent cell, it can directly use the configured MBS session information of the serving cell to receive the multicast service, which can avoid the occurrence of transmission delays, data packet loss and the like, and improve the continuity of MBS service reception.

其中，网络设备执行的多播配置指示方法的流程，可以如图1所示，生成MBS多播配置信息、生成指示信息、发送MBS多播配置信息、发送指示信息，网络设备执行的流程还可以是生成MBS多播配置信息、发送MBS多播配置信息、生成指示信息、发送指示信息。Among them, the process of the multicast configuration indication method executed by the network device can be as shown in Figure 1, generating MBS multicast configuration information, generating indication information, sending MBS multicast configuration information, and sending indication information. The process executed by the network device can also be generating MBS multicast configuration information, sending MBS multicast configuration information, generating indication information, and sending indication information.

本发明还提供一种多播配置指示方法，方法由用户设备执行，方法包括：The present invention also provides a multicast configuration indication method, which is executed by a user equipment and includes:

获取指示信息，指示信息用于指示服务小区的MBS多播配置信息中对应于多播业务的MBS会话信息，和相邻小区的MBS多播配置信息中对应于多播业务的MBS会话信息是否相同； Acquire indication information, where the indication information is used to indicate whether the MBS session information corresponding to the multicast service in the MBS multicast configuration information of the serving cell and the MBS session information corresponding to the multicast service in the MBS multicast configuration information of the neighboring cell are the same;

具体地，用户设备接收MBS多播配置信息和指示信息，指示信息用于指示服务小区的MBS多播配置信息中的对应于该UE接收的该多播业务的MBS会话信息与相邻小区的MBS会话信息是否相同，如果相同，则UE移动至相邻小区后，可以直接使用已配置的服务小区的MBS会话信息接收多播业务，可以避免导致出现传输时延、数据包丢失等现象，提高MBS业务接收连续性。Specifically, the user equipment receives MBS multicast configuration information and indication information, where the indication information is used to indicate whether the MBS session information corresponding to the multicast service received by the UE in the MBS multicast configuration information of the serving cell is the same as the MBS session information of the adjacent cell. If they are the same, after the UE moves to the adjacent cell, it can directly use the configured MBS session information of the serving cell to receive the multicast service, thereby avoiding transmission delays, data packet loss and the like, and improving the continuity of MBS service reception.

其中，用户设备执行的多播配置指示方法的流程，可以如图2所示，接收MBS多播配置信息和指示信息，如果指示服务小区和相邻小区的MBS会话信息相同，则UE移动至相邻小区后可直接使用已配置的服务小区的MBS会话信息接收多播业务。此处需要注意的是，本发明对接收MBS多播配置信息和指示信息的具体顺序不做限制，即可以先接收MBS多播配置信息后接收指示信息，可以先接收指示信息后接收MBS多播配置信息，还可以同时接收MBS多播配置信息和指示信息。The process of the multicast configuration indication method executed by the user equipment may be as shown in FIG2 , where the MBS multicast configuration information and indication information are received. If the MBS session information indicating the serving cell and the neighboring cell are the same, the UE may directly use the configured MBS session information of the serving cell to receive the multicast service after moving to the neighboring cell. It should be noted here that the present invention does not limit the specific order of receiving the MBS multicast configuration information and the indication information, that is, the MBS multicast configuration information may be received first and then the indication information, the indication information may be received first and then the MBS multicast configuration information, or the MBS multicast configuration information and the indication information may be received simultaneously.

其中，基站生成并发送服务小区的MBS多播配置信息，相应地，UE可以接收服务小区的MBS多播配置信息。具体地，基站可以发送携带MBS多播配置信息的RRC释放连接消息，UE获取RRC释放连接消息将从RRC连接态转入RRC非激活态，并且获取RRC释放连接消息中携带的MBS多播配置信息，进而可以获取对应于UE处于RRC非激活态下能接收的多播业务的MBS会话信息并进行对应配置，进而使UE在RRC非激活态在接收多播业务；基站可以依次发送系统消息或专用信令、发送多播MCCH的配置信息、发送携带MBS多播配置信息的多播MCCH信息，UE可以依次获取系统消息或专用信令、获取多播MCCH的配置信息、获取多播MCCH信息，进而获取多播MCCH信息中携带的MBS多播配置信息，进而可以获取对应于UE处于RRC非激活态下能接收的多播业务的MBS会话信息并进行对应配置，进而使UE在RRC非激活态在接收多播业务。The base station generates and sends the MBS multicast configuration information of the serving cell, and correspondingly, the UE can receive the MBS multicast configuration information of the serving cell. Specifically, the base station can send an RRC release connection message carrying MBS multicast configuration information. The UE obtains the RRC release connection message and switches from the RRC connection state to the RRC inactive state, and obtains the MBS multicast configuration information carried in the RRC release connection message, and then obtains the MBS session information corresponding to the multicast service that the UE can receive in the RRC inactive state and performs corresponding configuration, so that the UE can receive the multicast service in the RRC inactive state; the base station can send system messages or dedicated signaling, send multicast MCCH configuration information, and send multicast MCCH information carrying MBS multicast configuration information in sequence. The UE can obtain system messages or dedicated signaling, obtain multicast MCCH configuration information, and obtain multicast MCCH information in sequence, and then obtain the MBS multicast configuration information carried in the multicast MCCH information, and then obtain the MBS multicast session information corresponding to the multicast service that the UE can receive in the RRC inactive state and perform corresponding configuration, so that the UE can receive the multicast service in the RRC inactive state.

其中，基站生成并发送指示信息，相应地，UE可以接收指示信息，具体地，基站可以发送单独指示信息，也可以发送将指示信息携带在MBS多播配置信息中进行发送，还可以采用其他形式进行发送，UE可以单独获取指示信息，也可以通过MBS多播配置信息获取其携带的指示信息。如果服务小区和相邻小区的MBS会话信息相同，用户设备从服务小区移动至相邻小区时，将以服务小区的MBS会话信息继续接收多播业务，进而可以避免用户设备的丢包和额外损耗，提升用户的性能。The base station generates and sends the indication information, and accordingly, the UE can receive the indication information. Specifically, the base station can send a separate indication information, or send the indication information carried in the MBS multicast configuration information, or send it in other forms. The UE can obtain the indication information separately, or obtain the indication information carried by the MBS multicast configuration information. If the MBS session information of the serving cell and the neighboring cell is the same, when the user equipment moves from the serving cell to the neighboring cell, it will continue to receive the multicast service with the MBS session information of the serving cell, thereby avoiding packet loss and additional loss of the user equipment and improving the performance of the user.

例如，系统存在一基站，基站覆盖多个小区，其中一个小区中存在一用户设备UE₁，UE₁所在的当前小区为服务小区，UE₁在服务小区内获取基站下发的服务小区的MBS多播配置信息PTM configuration₁，进而获取MBS多播配置信息中携带的MBS₁会话信息并进行配置，使UE₁处在RRC非激活态下时能接收多播业务MBS₁，如果UE₁从当前所处的服务小区移动到相邻小区后，若基于现有技术，处于RRC非激活态的UE₁在接收MBS₁的过程中从服务小区移动到相邻小区时，UE₁需要先获取基站在相邻小区中周期性下发的系统消息或专用信令以获取多播MCCH配置信息，从而根据多播MCCH配置信息获取周期性下发的多播MCCH信息，才能根据多播MCCH信息获取相邻小区的MBS多播配置信息PTM configuration₂，最后获取其包含的MBS₁会话信息并完成配置，才能开始接收MBS₁，然而，MBS₁数据包一直处于下发状态，UE₁进入相邻小区后无法及时尽快接收MBS₁，进而导致MBS₁的数据包丢失。相应地，本专利提供的技术方案，可以通过指示信息，向UE₁指示服务小区的MBS多播配置信息PTM configuration₁中的MBS₁会话信息，和相邻小区的MBS多播配置信息PTM configuration₂中的MBS₁会话信息是否相同，如果相同，则UE₁从服务小区移动至相邻小区时可以直接以服务小区的MBS₁会话信息直接继续接收MBS₁多播业务，可以及时接收MBS₁的数据包，避免数据包丢失的现象，进而提高UE₁接收MBS₁的连续性。For example, there is a base station in the system, and the base station covers multiple cells. In one of the cells, there is a user equipment UE ₁ , and the current cell where UE ₁ is located is the serving cell. UE ₁ obtains the MBS multicast configuration of the serving cell sent by the base station in the serving cell. The UE 1 receives the information PTM configuration ₁ , and then obtains the MBS ₁ session information carried in the MBS multicast configuration information and performs configuration, so that the UE ₁ can receive the multicast service MBS ₁ when it is in the RRC inactive state. If the UE ₁ moves from the current serving cell to the adjacent cell, based on the prior art, when the UE ₁ in the RRC inactive state moves from the serving cell to the adjacent cell during the process of receiving MBS ₁ , the UE ₁ needs to first obtain the system message or dedicated signaling periodically sent by the base station in the adjacent cell to obtain the multicast MCCH configuration information, and then obtain the periodically sent multicast MCCH information according to the multicast MCCH configuration information, and then obtain the MBS multicast configuration information PTM configuration ₂ of the adjacent cell according to the multicast MCCH information, and finally obtain the MBS ₁ session information contained therein and complete the configuration, and then start to receive MBS _1. However, the MBS ₁ data packet is always in the sending state, and the UE ₁ cannot receive the MBS ₁ as soon as possible after entering the adjacent cell, which leads to the loss of the MBS ₁ data packet. Accordingly, the technical solution provided by this patent can indicate to UE ₁ through indication information whether the MBS ₁ session information in the MBS multicast configuration information PTM configuration ₁ of the serving cell and the MBS ₁ session information in the MBS multicast configuration information PTM configuration ₂ of the adjacent cell are the same. If they are the same, when UE ₁ moves from the serving cell to the adjacent cell, it can directly continue to receive the MBS ₁ multicast service with the MBS ₁ session information of the serving cell, and can receive the MBS ₁ data packet in time to avoid the phenomenon of data packet loss, thereby improving the continuity of UE ₁ receiving MBS ₁ .

需要注意的是，通信系统中可以存在多个基站，每个基站可以覆盖多个小区，每个小区中可以接入多个UE，其中存在UE可以在RRC非激活态下接收一个或多个多播业务。为便于表述，本发明基于一个可以在RRC非激活态下接收多播业务的UE进行分析，将该UE当前所处的小区视为服务小区，而基站生成的服务小区的MBS多播配置信息中可以包含该服务小区中所有的多播业务所对应的MBS会话信息，而该UE获取多播配置信息后，可以通过多播配置信息获取其中携带的、该UE在RRC非激活态下能接收的一个或多个多播业务所对应的一个或多个MBS会话信息并进行对应配置，进而对应接收一个或多个多播业务。It should be noted that there may be multiple base stations in the communication system, each base station may cover multiple cells, and each cell may access multiple UEs, among which there are UEs that can receive one or more multicast services in the RRC inactive state. For ease of description, the present invention is based on an analysis of a UE that can receive multicast services in the RRC inactive state, and the cell where the UE is currently located is regarded as the service cell, and the MBS multicast configuration information of the service cell generated by the base station may include the MBS session information corresponding to all the multicast services in the service cell. After the UE obtains the multicast configuration information, it can obtain the one or more MBS session information corresponding to the one or more multicast services that the UE can receive in the RRC inactive state carried in the multicast configuration information and perform corresponding configuration, and then receive one or more multicast services accordingly.

需要注意的是，本专利所述的从服务小区移动至相邻小区后并根据指示信息决定是否使用服务小区的MBS会话信息的技术方案，主要使用处于RRC非激活态下的UE，即处于RRC非激活态下的UE从服务小区移动至相邻小区后，可以根据指示信息，决定是否使用服务小区的MBS会话信息。但是，在实际操作中，也可以适用于处于RRC连接态或处于RRC空闲态下的UE。It should be noted that the technical solution described in this patent for determining whether to use the MBS session information of the serving cell according to the indication information after moving from the serving cell to the neighboring cell is mainly used for UEs in the RRC inactive state, that is, after the UE in the RRC inactive state moves from the serving cell to the neighboring cell, it can determine whether to use the MBS session information of the serving cell according to the indication information. However, in actual operation, it can also be applied to UEs in the RRC connected state or in the RRC idle state.

需要注意的是，本专利所述的相邻小区是至少与服务小区有一个相同的多播业务的小区，相邻小区可以与服务小区同属于一个网络设备的覆盖范围之下，也可以和服务小区不属于同一个网络设备的覆盖范围。It should be noted that the adjacent cell described in this patent is a cell that has at least one same multicast service as the serving cell. The adjacent cell may be under the coverage of the same network device as the serving cell, or may not be under the coverage of the same network device as the serving cell.

需要说明的是，本专利所述的用户设备包括手机终端、车载终端，所述的网络设备包括基站、核心网，其中，将指示信息直接发送至用户设备的网络设备通常为基站，而与用户设备建立多播会话的网络设备通常为核心网。It should be noted that the user equipment described in this patent includes mobile terminals and vehicle terminals, and the network equipment includes base stations and core networks. The network equipment that directly sends the instruction information to the user equipment is usually the base station, and the network equipment connected to the user equipment is usually the base station. The network device that is used to establish a multicast session is usually the core network.

在本发明一种实施方式中，指示信息中每一个比特位采用0或1赋值，以分别指示服务小区的MBS会话信息和相邻小区的MBS会话信息相同，或不同，或相邻小区不提供多播业务。In an embodiment of the present invention, each bit in the indication information is assigned a value of 0 or 1 to indicate that the MBS session information of the serving cell is the same as or different from the MBS session information of the neighboring cell, or that the neighboring cell does not provide multicast services.

具体地，指示信息中的比特位可以按照自高位到低位或自低位到高位的顺序，与所指示的按照预设的排序顺序的相邻小区一一对应。Specifically, the bits in the indication information may correspond one-to-one with the indicated neighboring cells in a preset sorting order in an order from high to low or from low to high.

其中，对于指示信息中比特位的赋值，可以采用第一种赋值方式，则赋值方式为：Among them, for the assignment of the bits in the indication information, the first assignment method can be adopted, and the assignment method is:

当赋值为0时，指示服务小区的MBS会话信息和比特位对应的相邻小区的MBS会话信息相同；When the value is 0, it indicates that the MBS session information of the serving cell is the same as the MBS session information of the neighboring cell corresponding to the bit;

当赋值为1时，指示服务小区的MBS会话信息和比特位对应的相邻小区的MBS会话信息不同。When the value is 1, it indicates that the MBS session information of the serving cell is different from the MBS session information of the neighboring cell corresponding to the bit.

其中，对于指示信息中比特位的赋值，可以采用第二种赋值方式，则赋值方式为：Among them, for the assignment of the bits in the indication information, the second assignment method can be used, and the assignment method is:

当赋值为0时，指示服务小区的MBS会话信息和比特位对应的相邻小区的MBS会话信息不同；When the value is 0, it indicates that the MBS session information of the serving cell is different from the MBS session information of the neighboring cell corresponding to the bit;

当赋值为1时，指示服务小区的MBS会话信息和比特位对应的相邻小区的MBS会话信息相同。When the value is 1, it indicates that the MBS session information of the serving cell is the same as the MBS session information of the neighboring cell corresponding to the bit.

其中，对于指示信息中比特位的赋值，还可以指示相邻小区不提供多播业务，例如，当赋值为0时，指示相邻小区不提供多播业务；或者当赋值为1时，指示相邻小区不提供多播业务。例如，当系统存在一基站，基站覆盖四个小区Cell₁，Cell₂，Cell₃，Cell₄，其中，Cell₁接收多播业务MBS₁和MBS₂，Cell₂，Cell₃，Cell₄接收多播业务MBS₂，当Cell₁中的UE₁在RRC非激活态下接收MBS₁时，指示信息的赋值为0时，指示所有相邻小区Cell₂，Cell₃，Cell₄中均不提供多播业务MBS₁，指示信息也可以赋值为1，以指示所有相邻小区Cell₂，Cell₃，Cell₄中均不提供多播业务MBS₁。在实际操作中，UE₁还可以通过获取MBS多播配置信息，进而获取相邻小区列表，相邻小区列表中明确每一个相邻小区是否可以接收对应的多播业务，由此也可确定相邻小区是否提供多播业务。The value of the bit in the indication information may also indicate that the neighboring cell does not provide multicast services. For example, when the value is 0, it indicates that the neighboring cell does not provide multicast services; or when the value is 1, it indicates that the neighboring cell does not provide multicast services. For example, when there is a base station in the system, the base station covers four cells Cell ₁ , Cell ₂ , Cell ₃ , and Cell ₄ , wherein Cell ₁ receives multicast services MBS ₁ and MBS ₂ , and Cell ₂ , Cell ₃ , and Cell ₄ receive multicast services MBS _2. When UE ₁ in Cell ₁ receives MBS ₁ in an RRC inactive state, when the value of the indication information is 0, it indicates that all neighboring cells Cell ₂ , Cell ₃ , and Cell ₄ do not provide multicast services MBS _1. The indication information may also be assigned a value of 1 to indicate that all neighboring cells Cell ₂ , Cell ₃ , and Cell ₄ do not provide multicast services MBS ₁ . In actual operation, UE ₁ may also obtain MBS multicast configuration information and then obtain a neighboring cell list, which specifies whether each neighboring cell can receive a corresponding multicast service, thereby determining whether the neighboring cell provides a multicast service.

在本发明一种实施方式中，指示信息的比特位总数可以为0比特，可以用于表示所有的相邻小区与服务小区的MBS会话信息是否相同。In an implementation manner of the present invention, the total number of bits of the indication information may be 0 bits, which may be used to indicate whether the MBS session information of all neighboring cells is the same as that of the serving cell.

例如，当系统存在一基站，基站覆盖四个小区Cell₁，Cell₂，Cell₃，Cell₄，其中，Cell₁接收多播业务MBS₁和MBS₂，Cell₂，Cell₃，Cell₄接收多播业务MBS₁，当Cell₁中的UE₁在RRC非激活态下接收MBS₁时，指示信息可以采用0比特的方式指示所有相邻小区Cell₂，Cell₃，Cell₄中的MBS₁的多播会话信息与服务小区Cell₁的MBS₁会话信息相同，指示信息也可以采用0比特的方式指示所有相邻小区Cell₂，Cell₃，Cell₄中的MBS₁的多播会话信息与服务小区Cell₁的MBS₁会话信息不同。For example, when there is a base station in the system, the base station covers four cells Cell ₁ , Cell ₂ , Cell ₃ , Cell ₄ , wherein Cell ₁ receives multicast services MBS ₁ and MBS ₂ , Cell ₂ , Cell ₃ , Cell ₄ receive multicast services MBS ₁ , when UE ₁ in Cell ₁ receives MBS ₁ in an RRC inactive state, the indication information may use 0 bits to indicate that the multicast session information of MBS ₁ in all neighboring cells Cell ₂ , Cell ₃ , Cell ₄ is the same as the MBS ₁ session information of the serving cell Cell ₁ , and the indication information It is also possible to use 0 bits to indicate that the multicast session information of MBS ₁ in all neighboring cells Cell ₂ , Cell ₃ , and Cell ₄ is different from the MBS ₁ session information of the serving cell Cell ₁ .

在本发明一种实施方式中，指示信息的比特位总数可以为0比特，可以用于表示服务小区没有提供相邻小区中的MBS会话信息。In an implementation manner of the present invention, the total number of bits of the indication information may be 0 bits, which may be used to indicate that the serving cell does not provide the MBS session information in the neighboring cell.

具体地，指示信息的比特位总数可以为0比特，即可以表示指示信息缺省，服务小区没有提供相邻小区中的MBS会话信息，不说明服务小区和相邻小区的MBS会话信息相同或不同，也就是说，用户设备需要到相邻小区后重新接收相邻小区的MBS会话信息，才能继续接收多播业务。Specifically, the total number of bits of the indication information can be 0 bits, which means that the indication information is default, the serving cell does not provide the MBS session information in the neighboring cell, and does not indicate whether the MBS session information of the serving cell and the neighboring cell is the same or different. In other words, the user equipment needs to go to the neighboring cell and re-receive the MBS session information of the neighboring cell before it can continue to receive the multicast service.

在本发明一种实施方式中，指示信息的比特位总数可以为0比特，可以用于表示所有相邻小区均不提供多播业务。In an implementation manner of the present invention, the total number of bits of the indication information may be 0 bits, which may be used to indicate that all neighboring cells do not provide multicast services.

例如，当系统存在一基站，基站覆盖四个小区Cell₁，Cell₂，Cell₃，Cell₄，其中，Cell₁接收多播业务MBS₁和MBS₂，Cell₂，Cell₃，Cell₄接收多播业务MBS₂，当Cell₁中的UE₁在RRC非激活态下接收MBS₁时，指示信息可以采用0比特的方式指示所有相邻小区Cell₂，Cell₃，Cell₄均不提供多播业务MBS₁。For example, when there is a base station in the system, the base station covers four cells Cell ₁ , Cell ₂ , Cell ₃ , and Cell ₄ , among which Cell ₁ receives multicast services MBS ₁ and MBS ₂ , and Cell ₂ , Cell ₃ , and Cell ₄ receive multicast service MBS _2. When UE ₁ in Cell ₁ receives MBS ₁ in an RRC inactive state, the indication information can use 0 bits to indicate that all adjacent cells Cell ₂ , Cell ₃ , and Cell ₄ do not provide multicast service MBS ₁ .

在本发明一种实施方式中，指示信息的比特位总数可以为1比特，用于表示所有的相邻小区与服务小区的MBS会话信息是否相同。In an implementation manner of the present invention, the total number of bits of the indication information may be 1 bit, which is used to indicate whether the MBS session information of all neighboring cells is the same as that of the serving cell.

具体地，指示信息的比特位可以为1比特，可以采用第一种赋值方式，即赋值为0时，指示所有的相邻小区与服务小区的MBS会话信息相同，赋值为1时，则指示至少一个相邻小区与服务小区的MBS会话信息不同；还可以采用第二种赋值方式，即赋值为0时，指示至少一个相邻小区与服务小区的MBS会话信息不同，赋值为1时，指示所有的相邻小区与服务小区的MBS会话信息相同。Specifically, the bit position of the indication information can be 1 bit, and the first assignment method can be used, that is, when the assignment value is 0, it indicates that the MBS session information of all neighboring cells is the same as that of the serving cell, and when the assignment value is 1, it indicates that the MBS session information of at least one neighboring cell is different from that of the serving cell; the second assignment method can also be used, that is, when the assignment value is 0, it indicates that the MBS session information of at least one neighboring cell is different from that of the serving cell, and when the assignment value is 1, it indicates that the MBS session information of all neighboring cells is the same as that of the serving cell.

例如，当系统存在一基站，基站覆盖四个小区Cell₁，Cell₂，Cell₃，Cell₄，其中，Cell₁接收多播业务MBS₁和MBS₂，Cell₂，Cell₃，Cell₄接收多播业务MBS₁，当Cell₁中的UE₁在RRC非激活态下接收MBS₁时，指示信息采用第一种赋值方式，即指示信息为“0”时，指示所有相邻小区Cell₂，Cell₃，Cell₄中的MBS₁的多播会话信息与服务小区Cell₁的MBS₁会话信息相同，为“1”时，指示相邻小区Cell₂，Cell₃，Cell₄中至少一个相邻小区的MBS₁的多播会话信息与服务小区Cell₁的MBS₁会话信息不同；指示信息采用第二种赋值方式，即指示信息为“1”时，指示所有相邻小区Cell₂，Cell₃，Cell₄中的MBS₁的多播会话信息与服务小区Cell₁的MBS₁会话信息相同，为“0”时，指示相邻小区Cell₂，Cell₃，Cell₄中至少一个相邻小区的MBS₁的多播会话信息与服务小区Cell₁的MBS₁会话信息不同。For example, when there is a base station in the system, the base station covers four cells Cell ₁ , Cell ₂ , Cell ₃ , and Cell ₄ , wherein Cell ₁ receives multicast services MBS ₁ and MBS ₂ , and Cell ₂ , Cell ₃ , and Cell ₄ receive multicast services MBS _1. When UE ₁ in Cell ₁ receives MBS ₁ in an RRC inactive state, the indication information adopts the first assignment method, that is, when the indication information is "0", it indicates that the multicast session information of MBS ₁ in all neighboring cells Cell ₂ , Cell ₃ , and Cell ₄ is the same as the MBS ₁ session information of the serving cell Cell ₁ ; when it is "1", it indicates that the multicast session information of MBS 1 of at least one neighboring cell among the neighboring cells Cell ₂ , Cell ₃ , and Cell ₄ is the same as the MBS ₁ session information of the serving cell Cell _1. ₁ session information is different; the indication information adopts the second assignment method, that is, when the indication information is "1", it indicates that the multicast session information of MBS ₁ in all neighboring cells Cell ₂ , Cell ₃ , and Cell ₄ is the same as the MBS ₁ session information of the serving cell Cell ₁ ; when it is "0", it indicates that the multicast session information of MBS ₁ in at least one neighboring cell among the neighboring cells Cell ₂ , Cell ₃ , and Cell ₄ is different from the MBS ₁ session information of the serving cell Cell ₁ .

在本发明一种实施方式中，指示信息的比特位总数可以提供多播业务的相邻小区的总数，每一比特位用于指示对应的相邻小区的MBS会话信息与服务小区的MBS会话信息是否相同。In one embodiment of the present invention, the total number of bits of the indication information may provide the total number of neighboring cells of the multicast service. Each bit is used to indicate whether the MBS session information of the corresponding neighboring cell is the same as the MBS session information of the serving cell.

具体地，指示信息的比特位可以为提供对应相同的多播业务的相邻小区个数，比特位可以采用第一种赋值方式，即赋值为0时，指示提供多播业务的对应的相邻小区与服务小区的MBS会话信息相同，赋值为1时，指示提供多播业务的对应的相邻小区与服务小区的MBS会话信息不同；还可以采用第二种赋值方式，即赋值为0时，指示提供多播业务的对应的相邻小区与服务小区的MBS会话信息不同，赋值为1时，指示提供多播业务的对应的相邻小区与服务小区的MBS会话信息相同。Specifically, the bit position of the indication information may be the number of adjacent cells providing the same corresponding multicast service, and the bit position may adopt the first assignment method, that is, when the assignment value is 0, it indicates that the MBS session information of the corresponding adjacent cell providing the multicast service is the same as that of the serving cell, and when the assignment value is 1, it indicates that the MBS session information of the corresponding adjacent cell providing the multicast service is different from that of the serving cell; the second assignment method may also be adopted, that is, when the assignment value is 0, it indicates that the MBS session information of the corresponding adjacent cell providing the multicast service is different from that of the serving cell, and when the assignment value is 1, it indicates that the MBS session information of the corresponding adjacent cell providing the multicast service is the same as that of the serving cell.

例如，当系统存在一基站，基站覆盖四个小区Cell₁，Cell₂，Cell₃，Cell₄，其中，Cell₁接收多播业务MBS₁，Cell₂，Cell₃接收多播业务MBS₁和MBS₂，Cell₄接收多播业务MBS₂，当Cell₁中的UE₁在RRC非激活态下接收MBS₁时，此时提供MBS₁的相邻小区是Cell₂和Cell₃，因此指示信息的比特位总数为2位，每一比特位分别指示对应的Cell₂和Cell₃的MBS₁的多播会话信息与服务小区Cell₁的MBS₁会话信息是否相同。其中，指示信息可以采用第一种赋值方式，即指示信息为“00”时，指示提供MBS₁的相邻小区Cell₂和Cell₃中的MBS₁的多播会话信息与服务小区Cell₁的MBS₁会话信息相同；指示信息为“01”时，指示提供MBS₁的相邻小区Cell₂的MBS₁的多播会话信息与服务小区Cell₁的MBS₁会话信息不同，提供MBS₁的相邻小区Cell₃的MBS₁的多播会话信息与服务小区Cell₁的MBS₁会话信息相同；指示信息为“10”时，指示提供MBS₁的相邻小区Cell₂的MBS₁的多播会话信息与服务小区Cell₁的MBS₁会话信息相同，提供MBS₁的相邻小区Cell₃的MBS₁的多播会话信息与服务小区Cell₁的MBS₁会话信息不同；指示信息为“11”时，指示提供MBS₁的相邻小区Cell₂和Cell₃的MBS₁的多播会话信息与服务小区Cell₁的MBS₁会话信息不同，此处指示信息中的比特位自低位至高位与相邻小区的ID升序对应。其中，指示信息中的比特位还可以自低位至高位与相邻小区的ID降序对应。另外，指示信息还可以采用第二种赋值方式，此处不再赘述。For example, when there is a base station in the system, the base station covers four cells Cell ₁ , Cell ₂ , Cell ₃ , and Cell ₄ , among which Cell ₁ receives multicast service MBS ₁ , Cell ₂ and Cell ₃ receive multicast services MBS ₁ and MBS ₂ , and Cell ₄ receives multicast service MBS _2. When UE ₁ in Cell ₁ receives MBS ₁ in RRC inactive state, the adjacent cells providing MBS ₁ are Cell ₂ and Cell _3. Therefore, the total number of bits of the indication information is 2 bits, and each bit indicates whether the multicast session information of MBS ₁ of the corresponding Cell ₂ and Cell ₃ is the same as the MBS ₁ session information of the serving cell Cell ₁ . The indication information may adopt the first assignment method, that is, when the indication information is "00", it indicates that the multicast session information of MBS ₁ in the neighboring cells Cell ₂ and Cell ₃ providing MBS ₁ is the same as the MBS ₁ session information of the serving cell Cell ₁ ; when the indication information is "01", it indicates that the multicast session information of MBS ₁ in the neighboring cell Cell ₂ providing MBS 1 is different from the MBS ₁ session information of the serving cell Cell 1, and the multicast session information of MBS 1 in the neighboring cell Cell 3 providing MBS ₁ is the same as the MBS ₁ session information of the serving cell Cell ₁ ; when the indication information is "10", it indicates that the multicast session information of MBS ₁ in the neighboring cell Cell ₂ providing MBS 1 is the same as the MBS ₁ session information of the serving cell Cell ₁ , and the multicast session information of MBS ₁ in the neighboring cell Cell ₃ providing MBS ₁ is different from the MBS 1 session information of the serving cell Cell ₁ ; when the indication information is "11", it indicates that the multicast session information of MBS ₁ in the neighboring cell Cell 2 providing MBS ₁ is the same as the MBS 1 session information of the serving cell Cell 1, and the multicast session information of MBS ₁ in the neighboring cell Cell ₃ providing MBS 1 is different from the MBS ₁ session information of the serving cell Cell ₁ . The multicast session information of MBS ₁ of the neighboring cells Cell ₂ and Cell _{3 of 1} _is different from the MBS ₁ session information of the serving cell Cell _1. Here, the bits in the indication information correspond to the IDs of the neighboring cells in ascending order from low to high. Among them, the bits in the indication information can also correspond to the IDs of the neighboring cells in descending order from low to high. In addition, the indication information can also adopt the second assignment method, which will not be repeated here.

在本发明一种实施方式中，指示信息的比特位总数可以相邻小区的总数，提供多播业务的相邻小区对应的比特位用于指示相邻小区的MBS会话信息与服务小区的MBS会话信息是否相同。In an embodiment of the present invention, the total number of bits of the indication information may be the total number of neighboring cells, and the bits corresponding to the neighboring cells providing multicast services are used to indicate whether the MBS session information of the neighboring cells is the same as the MBS session information of the serving cell.

具体地，指示信息的比特位可以是相邻小区的总数，可以采用第一种赋值方式，即赋值为0时，指示对应的相邻小区与服务小区的MBS会话信息相同，赋值为1时，指示对应的相邻小区与服务小区的MBS会话信息不同；还可以采用第二种赋值方式，即赋值为0时，指示对应的相邻小区与服务小区的MBS会话信息不同，赋值为1时，指示对应的相邻小区与服务小区的MBS会话信息相同。Specifically, the bit position of the indication information may be the total number of neighboring cells, and the first value assignment method may be used, that is, when the value is 0, it indicates that the MBS session information of the corresponding neighboring cell is the same as that of the serving cell, and when the value is 1, it indicates that the MBS session information of the corresponding neighboring cell is different from that of the serving cell; the second value assignment method may also be used, that is, when the value is 0, it indicates that the MBS session information of the corresponding neighboring cell is different from that of the serving cell, and when the value is 1, it indicates that the corresponding neighboring cell Same as the MBS session information of the serving cell.

例如，当系统存在一基站，基站覆盖四个小区Cell₁，Cell₂，Cell₃，Cell₄，其中，Cell₁接收多播业务MBS₁，Cell₂，Cell₃，Cell₄接收多播业务MBS₁和MBS₂，当服务小区Cell₁中的UE₁在RRC非激活态下接收MBS₁时，指示信息的比特位总数为3位，每一比特位分别指示Cell₂，Cell₃，Cell₄的MBS₁的多播会话信息与服务小区Cell₁的MBS₁会话信息是否相同。其中，指示信息可以采用第一种赋值方式，即指示信息为“000”时，指示Cell₂，Cell₃，Cell₄中的MBS₁的多播会话信息与服务小区Cell₁的MBS₁会话信息均相同；指示信息为“001”时，指示Cell₂的MBS₁的多播会话信息与服务小区Cell₁的MBS₁会话信息不同，Cell₃和Cell₄的MBS₁的多播会话信息与服务小区Cell₁的MBS₁会话信息相同；指示信息为“010”时，指示Cell₃与Cell₁的MBS₁会话信息不同，Cell₂和Cell₄与Cell₁的MBS₁会话信息相同；指示信息为“011”时，指示Cell₄与Cell₁的MBS₁会话信息相同，Cell₂和Cell₃与Cell₁的MBS₁会话信息不同；指示信息为“100”时，指示Cell₄与Cell₁的MBS₁会话信息不同，Cell₂和Cell₃与Cell₁的MBS₁会话信息相同；“101”时，指示Cell₃与Cell₁的MBS₁会话信息相同，Cell₂和Cell₄与Cell₁的MBS₁会话信息相同；“110”时，指示Cell₂与Cell₁的MBS₁会话信息相同，Cell₃和Cell₄与Cell₁的MBS₁会话信息相同；指示信息为“111”时，指示Cell₂，Cell₃，Cell₄的MBS₁的多播会话信息与服务小区Cell₁的MBS₁会话信息均不同。此处指示信息中的比特位自低位至高位与相邻小区的ID升序对应。其中，指示信息中的比特位还可以自低位至高位与相邻小区的ID降序对应。另外，指示信息还可以采用第二种赋值方式，此处不再赘述。For example, when there is a base station in the system, the base station covers four cells Cell ₁ , Cell ₂ , Cell ₃ , and Cell ₄ , among which Cell ₁ receives multicast service MBS ₁ , Cell ₂ , Cell ₃ , and Cell ₄ receive multicast services MBS ₁ and MBS _2. When UE ₁ in serving cell Cell ₁ receives MBS ₁ in RRC inactive state, the total number of bits of the indication information is 3 bits, and each bit indicates whether the multicast session information of MBS ₁ of Cell ₂ , Cell ₃ , and Cell ₄ is the same as the MBS ₁ session information of serving cell Cell ₁ . Among them, the indication information can adopt the first assignment method, that is, when the indication information is "000", it indicates that the multicast session information of MBS ₁ in Cell ₂ , Cell ₃ , and Cell ₄ is the same as the MBS ₁ session information of the serving cell Cell ₁ ; when the indication information is "001", it indicates that the multicast session information of MBS ₁ of Cell ₂ is different from the MBS ₁ session information of the serving cell Cell ₁ , and the multicast session information of MBS ₁ of Cell ₃ and Cell ₄ is the same as the MBS ₁ session information of the serving cell Cell ₁ ; when the indication information is "010", it indicates that the MBS ₁ session information of Cell ₃ is different from that of Cell ₁ , and Cell ₂ and Cell ₄ are the same as the MBS ₁ session information of Cell ₁ ; when the indication information is "011", it indicates that the MBS ₁ session information of Cell ₄ is the same as that of Cell ₁ , and Cell ₂ and Cell ₃ are the same as the MBS 1 session information of Cell _1. ₁ session information is different; when the indication information is "100", it indicates that the MBS ₁ session information of Cell ₄ is different from that of Cell ₁ , and the MBS ₁ session information of Cell ₂ and Cell ₃ is the same as that of Cell ₁ ; when "101", it indicates that the MBS ₁ session information of Cell ₃ is the same as that of Cell ₁ , and the MBS ₁ session information of Cell ₂ and Cell ₄ is the same as that of Cell ₁ ; when "110", it indicates that the MBS ₁ session information of Cell ₂ is the same as that of Cell ₁ , and the MBS ₁ session information of Cell ₃ and Cell ₄ is the same as that of Cell ₁ ; when the indication information is "111", it indicates that the multicast session information of MBS ₁ of Cell ₂ , Cell ₃ , and Cell ₄ is different from the MBS ₁ session information of the serving cell Cell _1. The bits in the indication information here correspond to the IDs of the neighboring cells in ascending order from low to high. The bits in the indication information may also correspond to the IDs of the neighboring cells in descending order from low to high. In addition, the indication information may also adopt the second value assignment method, which will not be described in detail here.

需要注意的是，在实际操作中，指示信息中还可以包括不提供相应的多播业务的相邻小区的比特位部分，对于该部分的赋值也可以采用上述第一种或第二种赋值。但是UE由于知晓相邻小区列表，明确不同的相邻小区是否发送该指示信息所对应的多播业务，对指示信息中不发送该多播业务的相邻小区的比特位部分，也就不会进行解码或读取，或者认为这些比特位所指示的信息没有意义。It should be noted that, in actual operation, the indication information may also include the bit portion of the neighboring cells that do not provide the corresponding multicast service, and the first or second value assignment may be used for the portion. However, since the UE knows the neighboring cell list and knows whether different neighboring cells send the multicast service corresponding to the indication information, the UE will not decode or read the bit portion of the neighboring cells that do not send the multicast service in the indication information, or will consider that the information indicated by these bits is meaningless.

在本发明一种实施方式中，网络设备发送指示信息的过程，包括：In one embodiment of the present invention, the process of the network device sending the indication information includes:

向用户设备发送RRC连接释放消息，RRC连接释放消息携带指示信息。An RRC connection release message is sent to the user equipment, where the RRC connection release message carries indication information.

在本发明一种实施方式中，向用户设备发送RRC连接释放消息的过程，包括：In one implementation of the present invention, the process of sending an RRC connection release message to a user equipment includes:

使用对应于用户设备的C-RNTI加扰调度RRC连接释放消息的PDCCH，RRC连接释放消息携带指示信息，指示信息用于指示用户设备于服务小区的MBS会话信息，和相邻小区的MBS会话信息是否相同。The PDCCH of the RRC connection release message is scrambled using the C-RNTI corresponding to the user equipment. The RRC connection release message carries indication information, and the indication information is used to indicate whether the MBS session information of the user equipment in the serving cell is the same as the MBS session information of the neighboring cell.

在本发明一种实施方式中，用户设备接收指示信息的过程，包括： In one embodiment of the present invention, the process of receiving indication information by the user equipment includes:

接收来自网络设备的RRC连接释放消息，获取RRC连接释放消息携带的指示信息。Receive an RRC connection release message from the network device, and obtain indication information carried in the RRC connection release message.

在本发明一种实施方式中，接收来自网络设备的RRC连接释放消息的过程，包括：In one embodiment of the present invention, the process of receiving an RRC connection release message from a network device includes:

监听由C-RNTI加扰的PDCCH，根据PDCCH中的调度信息接收RRC连接释放消息的PDCCH，获取RRC连接释放消息携带的指示信息，指示信息用于指示用户设备于服务小区的MBS会话信息，和相邻小区的MBS会话信息是否相同。Monitor the PDCCH scrambled by the C-RNTI, receive the PDCCH of the RRC connection release message according to the scheduling information in the PDCCH, and obtain the indication information carried by the RRC connection release message, where the indication information is used to indicate whether the MBS session information of the user equipment in the serving cell is the same as the MBS session information of the neighboring cell.

具体地，网络设备使用C-RNTI加扰RRC连接释放消息的PDCCH，用户设备监听由C-RNTI加扰的PDCCH，根据PDCCH中的调度信息接收RRC连接释放消息，进而获取RRC连接释放消息中所携带的指示信息，使用户设备明确用户设备于服务小区的MBS会话信息，和相邻小区的MBS会话信息是否相同，进而是用户设备移动至相邻小区后，可以根据指示信息，决定是否直接使用服务小区的MBS会话信息。Specifically, the network device uses C-RNTI to scramble the PDCCH of the RRC connection release message, the user equipment monitors the PDCCH scrambled by C-RNTI, receives the RRC connection release message according to the scheduling information in the PDCCH, and then obtains the indication information carried in the RRC connection release message, so that the user equipment can clearly understand whether the MBS session information of the user equipment in the serving cell is the same as the MBS session information of the adjacent cell. Then, after the user equipment moves to the adjacent cell, it can decide whether to directly use the MBS session information of the serving cell according to the indication information.

在本发明一种实施方式中，RRC连接释放消息包括服务小区的MBS多播配置信息；In one embodiment of the present invention, the RRC connection release message includes MBS multicast configuration information of the serving cell;

MBS多播配置信息包括：MBS multicast configuration information includes:

至少一个MBS会话信息，每个MBS会话信息分别对应一多播业务，指示信息独立于服务小区的MBS会话信息，或指示信息处于服务小区的MBS会话信息中；at least one MBS session information, each MBS session information corresponds to a multicast service, and the indication information is independent of the MBS session information of the serving cell, or the indication information is in the MBS session information of the serving cell;

和/或and/or

相邻小区列表，相邻小区列表至少包含一个相邻小区的标识，相邻小区至少提供一种与服务小区相同的多播业务；A neighboring cell list, where the neighboring cell list includes at least one neighboring cell identifier, and the neighboring cell provides at least one multicast service that is the same as that of the serving cell;

指示信息与多播业务、相邻小区对应关联，以指示用户设备于服务小区的MBS会话信息，和相邻小区的MBS会话信息是否相同。The indication information is associated with the multicast service and the neighboring cell to indicate whether the MBS session information of the user equipment in the serving cell is the same as the MBS session information of the neighboring cell.

具体地，MBS多播配置信息中可以包括MBS会话信息，指示信息可以处于MBS会话信息中，可以处于MBS会话信息外且处于MBS多播配置信息中，还可以处于MBS多播配置信息之外，指示信息与多播业务一一关联，以对应指示的每一个多播业务在服务小区中的MBS会话信息，和相邻小区中的MBS会话信息是否相同，其中，指示信息的数据结构可以表示为：Specifically, the MBS multicast configuration information may include MBS session information, the indication information may be in the MBS session information, may be outside the MBS session information and in the MBS multicast configuration information, or may be outside the MBS multicast configuration information, the indication information is associated with the multicast service one by one, to indicate whether the MBS session information of each multicast service indicated in the serving cell is the same as the MBS session information in the adjacent cell, wherein the data structure of the indication information may be expressed as follows:

Multicast-NeighbourCell BIT STRING(SIZE(maxNeighCellMBS))Multicast-NeighbourCell BIT STRING(SIZE(maxNeighCellMBS))

其中，Multicast-NeighbourCell为指示信息，其中maxNeighCellMBS可以是相邻小区的个数，相邻小区的总数取决于相邻小区列表，相应的，相邻小区列表的数据结构可以表示为：

Among them, Multicast-NeighbourCell is indication information, and maxNeighCellMBS can be the number of neighboring cells. The total number of neighboring cells depends on the neighboring cell list. Accordingly, the data structure of the neighboring cell list can be expressed as:

若指示信息处于MBS会话信息中，则相应的数据结构可以表示为：
If the indication information is in the MBS session information, the corresponding data structure can be expressed as:

其中，MBS-SessionInfo为MBS会话信息，Multicast-NeighbourCell为指示信息。Among them, MBS-SessionInfo is MBS session information, and Multicast-NeighbourCell is indication information.

若指示信息独立于MBS会话信息，则相应的数据结构可以表示为：
If the indication information is independent of the MBS session information, the corresponding data structure can be expressed as:

其中，MBS-SessionInfo为MBS会话信息，Multicast-NeighbourCell为指示信息，mbs-SessionId为多播业务对应的MBS会话ID，MBS会话信息MBS-SessionInfo、指示信息Multicast-NeighbourCell均与mbs-SessionId关联，以指示对应的多播业务于服务小区内的MBS会话信息与相邻小区的 MBS会话信息是否相同。Among them, MBS-SessionInfo is MBS session information, Multicast-NeighbourCell is indication information, mbs-SessionId is the MBS session ID corresponding to the multicast service, and the MBS session information MBS-SessionInfo and indication information Multicast-NeighbourCell are associated with mbs-SessionId to indicate the MBS session information of the corresponding multicast service in the serving cell and the neighboring cell. Check whether the MBS session information is the same.

需要注意的是，本专利所述的数组名称，信息名称，例如Multicast-NeighbourCell、MBS-Multicast-NeighbourCell均是一种示例，实际操作中也可以采用其他名称进行表述，本发明对此不做限制。It should be noted that the array names and information names described in this patent, such as Multicast-NeighbourCell and MBS-Multicast-NeighbourCell, are all examples. Other names can also be used for expression in actual operations, and the present invention does not limit this.

例如，当系统存在一基站，基站覆盖四个小区Cell₁，Cell₂，Cell₃，Cell₄，这四个小区均接收多播业务MBS₁，当服务小区Cell₁中的UE₁在RRC非激活态下接收MBS₁时，网络设备可以生成指示信息，使RRC连接释放消息承载指示信息，使用C-RNTI₁加扰调度RRC连接释放消息的PDCCH，相应的，用户设备UE₁监听由C-RNTI加扰的PDCCH，根据PDCCH中的调度信息接收RRC连接释放消息，以接收指示信息，指示信息可以如下所述：For example, when there is a base station in the system, the base station covers four cells Cell ₁ , Cell ₂ , Cell ₃ , and Cell ₄ , and the four cells all receive the multicast service MBS _1. When UE ₁ in the serving cell Cell ₁ receives MBS ₁ in the RRC inactive state, the network device can generate indication information, so that the RRC connection release message carries the indication information, and uses C-RNTI ₁ to scramble the PDCCH that schedules the RRC connection release message. Correspondingly, the user equipment UE ₁ monitors the PDCCH scrambled by the C-RNTI, receives the RRC connection release message according to the scheduling information in the PDCCH, so as to receive the indication information. The indication information can be as follows:

当MBS₁的指示信息处于MBS多播配置信息的MBS₁会话信息时：When the indication information of MBS ₁ is in the MBS ₁ session information of the MBS multicast configuration information:

其中，指示信息的比特位总数可以是0比特，用于表示所有的相邻小区Cell₂，Cell₃，Cell₄中的MBS₁会话信息与Cell₁中的MBS₁会话信息相同，即Multicast-NeighbourCell这一项缺省，相应的数据结构如下：
The total number of bits of the indication information may be 0 bits, which indicates that the MBS ₁ session information in all neighboring cells Cell ₂ , Cell ₃ , and Cell ₄ is the same as the MBS ₁ session information in Cell ₁ , that is, the Multicast-NeighbourCell item is defaulted, and the corresponding data structure is as follows:

其中，指示信息的比特位总数也可以是1比特，用于表示所有的相邻小区Cell₂，Cell₃，Cell₄中的MBS₁会话信息与Cell₁中的MBS₁会话信息相同，此时若采用上述第一种赋值方式，可以表示为“0”，相应的数据结构如下：

The total number of bits of the indication information may also be 1 bit, which is used to indicate that the MBS ₁ session information in all the neighboring cells Cell ₂ , Cell ₃ , and Cell ₄ is the same as the MBS ₁ session information in Cell _1. In this case, if the first value assignment method is adopted, it can be represented as "0", and the corresponding data structure is as follows:

上述的Multicast-NeighbourCell取值为0。The value of the Multicast-NeighbourCell mentioned above is 0.

指示信息的比特位总数也可以是提供多播业务的相邻小区的总数，每一比特位用于表示对应的相邻小区Cell₂，Cell₃，Cell₄中的MBS₁会话信息与Cell₁中的MBS₁会话信息相同，此时若采用上述第一种赋值方式，可以表示为“000”，相应的数据结构如下：
The total number of bits of the indication information may also be the total number of adjacent cells providing multicast services, and each bit is used to indicate that the MBS ₁ session information in the corresponding adjacent cells Cell ₂ , Cell ₃ , and Cell ₄ is the same as the MBS ₁ session information in Cell _1. In this case, if the first value assignment method is used, it can be expressed as "000", and the corresponding data structure is as follows:

上述的Multicast-NeighbourCell取值为000。The value of the Multicast-NeighbourCell mentioned above is 000.

指示信息的比特位总数还可以是相邻小区的总数，提供多播业务的相邻小区对应的比特位用于指示相邻小区的MBS会话信息与服务小区的MBS会话信息是否相同。基于上述实施例，若Cell₁，Cell₂，Cell₃均接收MBS₁和MBS₂，而Cell₄接收MBS₂和MBS₃，此时针对Cell₁中UE₁接收MBS₁进行分析，Cell₁为服务小区，Cell₂，Cell₃，Cell₄均为相邻小区，Cell₂，Cell₃为提供对应的多播业务MBS₁的相邻小区，如果此时Cell₂，Cell₃中的MBS₁会话信息与Cell₁中的MBS₁会话信息相同，采用上述第一种赋值方式，即提供多播业务的相邻小区Cell₂，Cell₃对应的比特位的部分可以表示为“00”，而不提供多播业务的相邻小区对应的比特位的部分则可以任意表示为“1”或者“0”，最后，该指示信息表示为“000”或“100”，相应的数据结构如下：

The total number of bits of the indication information may also be the total number of neighboring cells, and the bits corresponding to the neighboring cells providing multicast services are used to indicate whether the MBS session information of the neighboring cells is the same as the MBS session information of the serving cell. Based on the above embodiment, if Cell ₁ , Cell ₂ , and Cell ₃ all receive MBS ₁ and MBS ₂ , and Cell ₄ receives MBS ₂ and MBS ₃ , then an analysis is performed on UE ₁ receiving MBS ₁ in Cell ₁ , Cell ₁ is a serving cell, Cell ₂ , Cell ₃ , and Cell ₄ are all neighboring cells, Cell ₂ and Cell ₃ are neighboring cells providing the corresponding multicast service MBS ₁ , if at this time the MBS ₁ session information in Cell ₂ and Cell ₃ is the same as the MBS ₁ session information in Cell ₁ , the first value assignment method is adopted, that is, the bit portion corresponding to the neighboring cells Cell ₂ and Cell ₃ providing the multicast service can be represented as "00", and the bit portion corresponding to the neighboring cell not providing the multicast service can be arbitrarily represented as "1" or "0", and finally, the indication information is represented as "000" or "100", and the corresponding data structure is as follows:

上述的Multicast-NeighbourCell取值为000或100。The value of the Multicast-NeighbourCell mentioned above is 000 or 100.

当MBS₁的指示信息独立于MBS多播配置信息的MBS₁会话信息时：When the indication information of MBS ₁ is independent of the MBS ₁ session information of the MBS multicast configuration information:

指示信息的比特位总数还可以是相邻小区的总数，提供多播业务的相邻小区对应的比特位用于指示相邻小区的MBS会话信息与服务小区的MBS会话信息是否相同。基于上述实施例，若Cell₁，Cell₂，Cell₃均接收MBS₁和MBS₂，而Cell₄接收MBS₂和MBS₃，此时针对Cell₁中UE₁接收MBS₁进行分析，Cell₁为服务小区，Cell₂，Cell₃，Cell₄均为相邻小区，Cell₂， Cell₃为提供对应的多播业务MBS₁的相邻小区，如果此时Cell₂，Cell₃中的MBS₁会话信息与Cell₁中的MBS₁会话信息相同，采用上述第一种赋值方式，即提供多播业务的相邻小区Cell₂，Cell₃对应的比特位的部分可以表示为“00”，而不提供多播业务的相邻小区对应的比特位的部分则可以任意表示为“1”或者“0”，最后，该指示信息表示为“000”或“100”，相应的数据结构如下：
The total number of bits of the indication information may also be the total number of neighboring cells, and the bits corresponding to the neighboring cells providing multicast services are used to indicate whether the MBS session information of the neighboring cells is the same as the MBS session information of the serving cell. Based on the above embodiment, if Cell ₁ , Cell ₂ , and Cell ₃ all receive MBS ₁ and MBS ₂ , and Cell ₄ receives MBS ₂ and MBS ₃ , then an analysis is performed on UE ₁ receiving MBS ₁ in Cell ₁ , Cell ₁ is the serving cell, Cell ₂ , Cell ₃ , and Cell ₄ are all neighboring cells, and Cell ₂ , Cell ₃ is a neighboring cell that provides the corresponding multicast service MBS _1. If the MBS ₁ session information in Cell ₂ and Cell ₃ is the same as the MBS ₁ session information in Cell ₁ , the first value assignment method is adopted, that is, the bit portion corresponding to the neighboring cells Cell ₂ and Cell ₃ that provide the multicast service can be represented as "00", and the bit portion corresponding to the neighboring cell that does not provide the multicast service can be arbitrarily represented as "1" or "0". Finally, the indication information is represented as "000" or "100", and the corresponding data structure is as follows:

需要注意的是，MBS多播配置信息可以包括多个MBS会话信息，每个MBS会话信息分别对应一多播业务，每个指示信息也用于分别指示对应的多播业务于服务小区中的MBS会话信息和相邻小区的MBS会话信息是否相同。例如，当系统存在一基站，基站覆盖四个小区，这四个Cell₁，Cell₂，Cell₃，Cell₄均接收多播业务MBS₁和MBS₂，其中，Cell₁中的UE₁在RRC非激活态下接收MBS₁和MBS₂，此时，针对UE₁接收多播业务，Cell₁为服务小区，Cell₂，Cell₃，Cell₄为相邻小区，基站向Cell₁下发的MBS多播配置信息中包括MBS₁会话信息和MBS₂会话信息，UE₁接收到MBS多播配置信息后，将根据其中的MBS₁会话信息、MBS₂会话信息进行分别配置以分别实现MBS₁，MBS₂的接收，相应的，基站生成对应于MBS₁的指示信息和对应于MBS₂的指示信息，对应于MBS₁的指示信息用于指示向Cell₁下发的MBS多播配置信息中的MBS₁会话信息，和向Cell₂，Cell₃，Cell₄下发的MBS多播配置信息中的MBS₁会话信息是否相同，如果相同，当UE₁从Cell₁移动到Cell₂，Cell₃，Cell₄ 后，可以直接使用Cell₁下的MBS₁会话信息，接收MBS₁，对应于MBS₂的指示信息用于指示向Cell₁下发的MBS多播配置信息中的MBS₂会话信息，和向Cell₂，Cell₃，Cell₄下发的MBS多播配置信息中的MBS₂会话信息是否相同，如果相同，当UE₁从Cell₁移动到Cell₂，Cell₃，Cell₄后，可以直接使用Cell₁下的MBS₂会话信息，接收MBS₂。It should be noted that the MBS multicast configuration information may include multiple MBS session information, each MBS session information corresponds to a multicast service, and each indication information is also used to indicate whether the MBS session information of the corresponding multicast service in the serving cell is the same as the MBS session information of the adjacent cell. For example, when there is a base station in the system, the base station covers four cells, and the four Cell ₁ , Cell ₂ , Cell ₃ , and Cell ₄ all receive multicast services MBS ₁ and MBS _2. Among them, UE ₁ in Cell ₁ receives MBS ₁ and MBS ₂ in an RRC inactive state. At this time, for UE ₁ receiving multicast services, Cell ₁ is a serving cell, Cell ₂ , Cell ₃ , and Cell ₄ are neighboring cells, and the MBS multicast configuration information sent by the base station to Cell ₁ includes MBS ₁ session information and MBS ₂ session information. After UE ₁ receives the MBS multicast configuration information, it will be configured according to the MBS ₁ session information and the MBS ₂ session information therein to respectively realize the reception of MBS ₁ and MBS _2. Correspondingly, the base station generates indication information corresponding to MBS ₁ and indication information corresponding to MBS ₂ , and the indication information corresponding to MBS ₁ is used to indicate to Cell 1 that UE 1 receives the multicast service. Whether the MBS ₁ session information in the MBS multicast configuration information sent to _{Cell 1} is the same as the MBS ₁ session information in the MBS multicast configuration information sent to Cell ₂ , Cell ₃ , and Cell _4. If they are the same, when UE ₁ moves from Cell ₁ to Cell ₂ , Cell ₃ , and Cell _4, After that, the MBS ₁ session information under Cell ₁ can be directly used to receive MBS _1. The indication information corresponding to MBS ₂ is used to indicate whether the MBS ₂ session information in the MBS multicast configuration information sent to Cell ₁ and the MBS ₂ session information in the MBS multicast configuration information sent to Cell ₂ , Cell ₃ , and Cell ₄ are the same. If they are the same, when UE ₁ moves from Cell ₁ to Cell ₂ , Cell ₃ , and Cell ₄ , it can directly use the MBS ₂ session information under Cell ₁ to receive MBS ₂ .

向用户设备发送多播MCCH信息，多播MCCH信息携带指示信息。Multicast MCCH information is sent to the user equipment, where the multicast MCCH information carries indication information.

在本发明一种实施方式中，向用户设备发送多播MCCH信息的过程，包括：In one embodiment of the present invention, the process of sending multicast MCCH information to user equipment includes:

使用一特定的无线网络临时标识加扰调度多播MCCH信息的PDCCH，多播MCCH信息携带指示信息，指示信息用于指示用户设备于服务小区的MBS会话信息，和相邻小区的MBS会话信息是否相同。A specific radio network temporary identifier is used to scramble the PDCCH that schedules the multicast MCCH information. The multicast MCCH information carries indication information, which is used to indicate whether the MBS session information of the user equipment in the serving cell is the same as the MBS session information of the neighboring cell.

在本发明一种实施方式中，用户设备接收指示信息的过程，包括：In one embodiment of the present invention, the process of receiving indication information by the user equipment includes:

接收来自网络设备的多播MCCH信息，获取多播MCCH信息携带的指示信息。Receive multicast MCCH information from the network device, and obtain indication information carried by the multicast MCCH information.

在本发明一种实施方式中，接收来自网络设备的多播MCCH信息的过程，包括：In one embodiment of the present invention, the process of receiving multicast MCCH information from a network device includes:

使用一特定的无线网络临时标识监听PDCCH，根据PDCCH中的调度信息接收多播MCCH信息，获取多播MCCH信息携带的指示信息，指示信息用于指示用户设备于服务小区的MBS会话信息，和相邻小区的MBS会话信息是否相同。A specific wireless network temporary identifier is used to monitor PDCCH, multicast MCCH information is received according to scheduling information in PDCCH, and indication information carried by the multicast MCCH information is obtained. The indication information is used to indicate whether the MBS session information of the user equipment in the serving cell is the same as the MBS session information of the adjacent cell.

在本发明一种实施方式中，多播MCCH信息包括服务小区的MBS多播配置信息；In one embodiment of the present invention, the multicast MCCH information includes MBS multicast configuration information of the serving cell;

MBS多播配置信息包括：MBS multicast configuration information includes:

和/或and/or

具体地，网络设备使用一特定的无线网络临时标识加扰调度多播MCCH信息的PDCCH，多播MCCH信息携带指示信息，以将指示信息发送至用户设备。其中，特定的无线网络临时标识可以是SC-RNTI，可以是Multicast-RNTI，还可以是其他扰码。多播MCCH信息中承载MBS多播配置信息，MBS多播配置信息中可以包括MBS会话信息，指示信息可以处于MBS会话信息中，可以处于MBS会话信息外且处于MBS多播配置信息中，还可以处于MBS多播配置信息之外，指示信息与多播业务一一关联，以对应指示的每一个多播业务在服务小区中的MBS会话信息，和相邻小区中的MBS会话信息是否相同，其中，指示信息的数据结构可以表示为：Specifically, the network device uses a specific wireless network temporary identifier to scramble the PDCCH that schedules the multicast MCCH information, and the multicast MCCH information carries indication information to send the indication information to the user equipment. The specific wireless network temporary identifier can be SC-RNTI, Multicast-RNTI, or other scrambling codes. The multicast MCCH information carries MBS multicast configuration information, and the MBS multicast configuration information can include MBS session information. The indication information can be in the MBS session information, outside the MBS session information and in the MBS multicast configuration information, or outside the MBS multicast configuration information. The indication information is associated with the multicast service one by one, so that each multicast service indicated in the service module Whether the MBS session information in the area is the same as the MBS session information in the adjacent cell, wherein the data structure of the indication information can be expressed as:

其中，MBS-SessionInfo为MBS会话信息，Multicast-NeighbourCell为指示信息，mbs-SessionId为多播业务对应的MBS会话ID，MBS会话信息MBS-SessionInfo、指示信息Multicast-NeighbourCell均与mbs-SessionId关联，以指示对应的多播业务于服务小区内的MBS会话信息与相邻小区的MBS会话信息是否相同。Among them, MBS-SessionInfo is MBS session information, Multicast-NeighbourCell is indication information, mbs-SessionId is the MBS session ID corresponding to the multicast service, and the MBS session information MBS-SessionInfo and the indication information Multicast-NeighbourCell are associated with mbs-SessionId to indicate whether the MBS session information of the corresponding multicast service in the serving cell is the same as the MBS session information of the neighboring cell.

例如，当系统存在一基站，基站覆盖四个小区Cell₁，Cell₂，Cell₃，Cell₄，这四个小区均接收多播业务MBS₁，当服务小区Cell₁中的UE₁在RRC非激活态下接收MBS₁时，网络设备可以周期性下发的系统消息或专用信令，系统消息或专用信令承载多播MCCH配置信息，多播MCCH配置信息指示使用特定的无线网络临时标识加扰调度多播MCCH信息的PDCCH，相应的，用户设备UE₁监听由特定的无线网络临时标识加扰的PDCCH，获取周期性下发的多播MCCH信息，以接收指示信息，指示信息可以如下所述：For example, when there is a base station in the system, the base station covers four cells Cell ₁ , Cell ₂ , Cell ₃ , and Cell ₄ , and these four cells all receive the multicast service MBS _1. When UE ₁ in the serving cell Cell ₁ receives MBS ₁ in the RRC inactive state, the network device may periodically send a system message or dedicated signaling, and the system message or dedicated signaling carries multicast MCCH configuration information. The multicast MCCH configuration information indicates the use of a specific wireless network temporary identifier to scramble the PDCCH for scheduling multicast MCCH information. Accordingly, the user equipment UE ₁ monitors the PDCCH scrambled by the specific wireless network temporary identifier, obtains the multicast MCCH information sent periodically, and receives the indication information. The indication information may be as follows:

其中，指示信息的比特位总数也可以是1比特，用于表示所有的相邻小区Cell₂，Cell₃，Cell₄中的MBS₁会话信息与Cell₁中的MBS₁会话信息相同，此时若采用上述第一种赋值方式，可以表示为“0”，相应的数据结构如下：
The total number of bits of the indication information may also be 1 bit, which is used to indicate that the MBS ₁ session information in all the neighboring cells Cell ₂ , Cell ₃ , and Cell ₄ is the same as the MBS ₁ session information in Cell _1. In this case, if the first assignment method is used, The formula can be expressed as "0", and the corresponding data structure is as follows:

指示信息的比特位总数还可以是相邻小区的总数，提供多播业务的相邻小区对应的比特位用于指示相邻小区的MBS会话信息与服务小区的MBS会话信息是否相同。基于上述实施例，若Cell₁，Cell₂，Cell₃均接收MBS₁和MBS₂，而Cell₄接收MBS₂和MBS₃，此时针对Cell₁中UE₁接收MBS₁进行分析，Cell₁为服务小区，Cell₂，Cell₃，Cell₄均为相邻小区，Cell₂，Cell₃为提供对应的多播业务MBS₁的相邻小区，如果此时Cell₂，Cell₃中的MBS₁会话信息与Cell₁中的MBS₁会话信息相同，采用上述第一种赋值方式，即提供多播业务的相邻小区 Cell₂，Cell₃对应的比特位的部分可以表示为“00”，而不提供多播业务的相邻小区对应的比特位的部分则可以任意表示为“1”或者“0”，最后，该指示信息表示为“000”或“100”，相应的数据结构如下：
The total number of bits of the indication information may also be the total number of neighboring cells, and the bits corresponding to the neighboring cells providing multicast services are used to indicate whether the MBS session information of the neighboring cells is the same as the MBS session information of the serving cell. Based on the above embodiment, if Cell ₁ , Cell ₂ , and Cell ₃ all receive MBS ₁ and MBS ₂ , and Cell ₄ receives MBS ₂ and MBS ₃ , then an analysis is performed on UE ₁ receiving MBS ₁ in Cell ₁ , Cell ₁ is the serving cell, Cell ₂ , Cell ₃ , and Cell ₄ are all neighboring cells, and Cell ₂ and Cell ₃ are neighboring cells providing the corresponding multicast service MBS _1. If the MBS ₁ session information in Cell ₂ and Cell ₃ is the same as the MBS ₁ session information in Cell ₁ , the first value assignment method is adopted, i.e., the neighboring cells providing multicast services are the same. The bit portion corresponding to Cell ₂ and Cell ₃ can be represented as "00", while the bit portion corresponding to the adjacent cell that does not provide multicast services can be arbitrarily represented as "1" or "0". Finally, the indication information is represented as "000" or "100", and the corresponding data structure is as follows:

其中，指示信息的比特位总数也可以是1比特，用于表示所有的相邻小区Cell₂，Cell₃， Cell₄中的MBS₁会话信息与Cell₁中的MBS₁会话信息相同，此时若采用上述第一种赋值方式，可以表示为“0”，相应的数据结构如下：
The total number of bits of the indication information may also be 1 bit, which is used to indicate all the neighboring cells Cell ₂ , Cell ₃ , _The MBS ₁ session information in Cell ₄ is the same as that in Cell _1. If the first value assignment method is used, it can be represented as "0". The corresponding data structure is as follows:

需要注意的是，MBS多播配置信息可以包括多个MBS会话信息，每个MBS会话信息分别对应一多播业务，每个指示信息也用于分别指示对应的多播业务于服务小区中的MBS会话信息和相邻小区的MBS会话信息是否相同。例如，当系统存在一基站，基站覆盖四个小区，这四个Cell₁，Cell₂，Cell₃，Cell₄均接收多播业务MBS₁和MBS₂，其中，Cell₁中的UE₁在RRC非激活态下接收MBS₁和MBS₂，此时，针对UE₁接收多播业务，Cell₁为服务小区，Cell₂，Cell₃，Cell₄为相邻小区，基站向Cell₁下发的MBS多播配置信息中包括MBS₁会话信息和MBS₂会话信息，UE₁接收到MBS多播配置信息后，将根据其中的MBS₁会话信息、MBS₂会话信息进行分别配置以分别实现MBS₁，MBS₂的接收，相应的，基站生成对应于MBS₁的指示信息和对应于MBS₂的指示信息，对应于MBS₁的指示信息用于指示向Cell₁下发的MBS多播配置信息中的MBS₁会话信息，和向Cell₂，Cell₃，Cell₄下发的MBS多播配置信息中的MBS₁会话信息是否相同，如果相同，当UE₁从Cell₁移动到Cell₂，Cell₃，Cell₄后，可以直接使用Cell₁下的MBS₁会话信息，接收MBS₁，对应于MBS₂的指示信息用于指示向Cell₁下发的MBS多播配置信息中的MBS₂会话信息，和向Cell₂，Cell₃，Cell₄下发的MBS多播配置信息中的MBS₂会话信息是否相同，如果相同，当UE₁从Cell₁移动到Cell₂，Cell₃，Cell₄后，可以直接使用Cell₁下的MBS₂会话信息，接收MBS₂。It should be noted that the MBS multicast configuration information may include multiple MBS session information, each MBS session information corresponds to a multicast service, and each indication information is also used to indicate whether the MBS session information of the corresponding multicast service in the serving cell and the MBS session information of the adjacent cell are the same. For example, when there is a base station in the system, the base station covers four cells, and the four Cell ₁ , Cell ₂ , Cell ₃ , and Cell ₄ all receive multicast services MBS ₁ and MBS ₂ , wherein UE ₁ in Cell ₁ receives MBS ₁ and MBS ₂ in the RRC inactive state. At this time, for UE ₁ receiving the multicast service, Cell ₁ is the serving cell. Cell ₂ , Cell ₃ , and Cell ₄ are adjacent cells. The MBS multicast configuration information sent by the base station to Cell ₁ includes MBS ₁ session information and MBS ₂ session information. After UE ₁ receives the MBS multicast configuration information, it will be configured according to the MBS ₁ session information and the MBS ₂ session information to respectively realize the reception of MBS ₁ and MBS _2. Correspondingly, the base station generates indication information corresponding to MBS ₁ and indication information corresponding to MBS _2. The indication information corresponding to MBS _{1 is used to indicate whether the MBS 1} session information in the MBS multicast configuration information sent to Cell ₁ and the MBS ₁ session information in the MBS multicast configuration information sent to Cell ₂ , Cell ₃ , and Cell ₄ are the same. If they are the same, when UE ₁ moves from Cell ₁ to Cell ₂ , Cell ₃ , and Cell ₄ , it can directly use the MBS ₁ session information _{under Cell 1} _to receive MBS _1. The indication information corresponding to MBS ₂ is used to indicate whether the MBS ₂ session information in the MBS multicast configuration information sent to Cell ₁ is the same as the MBS ₂ session information in the MBS multicast configuration information sent to Cell ₂ , Cell ₃ , and Cell _4. If they are the same, when UE ₁ moves from Cell ₁ to Cell ₂ , Cell ₃ , and Cell ₄ , it can directly use the MBS ₂ session information under Cell ₁ to receive MBS ₂ .

向用户设备发送专有消息，专有消息携带指示信息。A dedicated message is sent to the user equipment, where the dedicated message carries indication information.

在本发明一种实施方式中，向用户设备发送专有消息的过程包括：In one embodiment of the present invention, the process of sending a dedicated message to a user equipment includes:

使用G-RNTI加扰调度专有消息的PDCCH，专有消息携带指示信息，用于指示G-RNTI对应的多播业务于服务小区的MBS会话信息，和相邻小区的MBS会话信息是否相同。The PDCCH of the dedicated message is scrambled using the G-RNTI, and the dedicated message carries indication information for indicating whether the MBS session information of the multicast service corresponding to the G-RNTI in the serving cell is the same as the MBS session information of the neighboring cell.

接收来自网络设备的承载指示信息的专有消息，获取专有消息携带的指示信息。Receive a proprietary message carrying indication information from a network device, and obtain the indication information carried by the proprietary message.

在本发明一种实施方式中，接收来自网络设备的专有消息的过程，包括：In one embodiment of the present invention, the process of receiving a proprietary message from a network device includes:

监听由G-RNTI加扰的PDCCH，根据PDCCH中的调度信息接收专有消息，专有消息携带指示信息，用于指示G-RNTI对应的多播业务于服务小区的MBS会话信息，和相邻小区的MBS会话信息是否相同。Monitor the PDCCH scrambled by the G-RNTI, and receive a dedicated message according to the scheduling information in the PDCCH. The dedicated message carries indication information, which is used to indicate whether the MBS session information of the multicast service corresponding to the G-RNTI in the serving cell is the same as the MBS session information of the adjacent cell.

具体地，网络设备可以使用G-RNTI加扰调度专有消息的PDCCH，专有消息携带指示信息，用于指示G-RNTI对应的多播业务于服务小区的MBS会话信息和相邻小区的MBS会话信息是否相同，如果相同，接收到专有消息的用户设备即可使用服务小区的MBS会话信息，直接接收对应的多播业务。指示信息所对应的多播业务可通过G-RNTI确定，在网络设备发送指示信息时，指示信息的发送时间是灵活的，指示信息所对应的多播业务是可选的，指示信息所指示的相邻小区也是可选的。Specifically, the network device can use G-RNTI to scramble the PDCCH of the dedicated message, and the dedicated message carries indication information to indicate whether the multicast service corresponding to the G-RNTI is the same as the MBS session information of the serving cell and the MBS session information of the neighboring cell. If they are the same, the user equipment receiving the dedicated message can use the MBS session information of the serving cell to directly receive the corresponding multicast service. The multicast service corresponding to the indication information can be determined by G-RNTI. When the network device sends the indication information, the sending time of the indication information is flexible, the multicast service corresponding to the indication information is optional, and the neighboring cell indicated by the indication information is also optional.

其中，当指示信息为0比特，用于指示所有的相邻小区与服务小区的MBS会话信息相同时，网络设备使用G-RNTI加扰调取专有消息的PDCCH，用户设备使用G-RNTI监听PDCCH，获取专有消息，用户设备可明确G-RNTI所对应的多播业务于服务小区中的MBS会话与相邻小区中的MBS会话信息相同；指示信息为0比特指示所有的相邻小区与服务小区的MBS会话信息不同时，网络设备使用G-RNTI加扰调取专有消息的PDCCH，用户设备使用G-RNTI监听PDCCH，获取专有消息，用户设备可明确G-RNTI所对应的多播业务于服务小区中的MBS会话与相邻小区中的MBS会话信息不同；指示信息为0比特指示所有相邻小区均不提供多播业务时，网络设备使用G-RNTI加扰调取专有消息的PDCCH，用户设备使用G-RNTI监听PDCCH，获取专有消息，用户设备可明确所有相邻小区均不提供G-RNTI所对应的多播业务。When the indication information is 0 bit, it is used to indicate that the MBS session information of all neighboring cells is the same as that of the serving cell. The network device uses G-RNTI to scramble and retrieve the PDCCH of the proprietary message. The user equipment uses G-RNTI to monitor PDCCH and obtain the proprietary message. The user equipment can clearly know that the MBS session information of the multicast service corresponding to G-RNTI in the serving cell is the same as that in the neighboring cell. The indication information is 0 bit, indicating that all neighboring cells and the serving cell have the same MBS session information. When the MBS session information of the serving cell and the adjacent cell are different, the network device uses the G-RNTI to scramble and retrieve the PDCCH of the proprietary message, and the user equipment uses the G-RNTI to monitor the PDCCH and obtain the proprietary message. The user equipment can clearly know that the MBS session information of the multicast service corresponding to the G-RNTI in the serving cell is different from that in the adjacent cell; when the indication information is 0 bits, indicating that all adjacent cells do not provide multicast services, the network device uses the G-RNTI to scramble and retrieve the PDCCH of the proprietary message, and the user equipment uses the G-RNTI to monitor the PDCCH and obtain the proprietary message. The user equipment can clearly know that all adjacent cells do not provide the multicast service corresponding to the G-RNTI.

其中，当指示信息的比特位总数为1比特，用于指示所有的相邻小区与服务小区的MBS会话信息是否相同时，网络设备使用G-RNTI加扰调取专有消息的PDCCH，用户设备使用G-RNTI监听PDCCH，获取专有消息，用户设备可明确G-RNTI所对应的多播业务于服务小区中的MBS会话与所有的相邻小区中的MBS会话信息是否相同。Among them, when the total number of bits of the indication information is 1 bit, which is used to indicate whether the MBS session information of all neighboring cells is the same as that of the serving cell, the network device uses G-RNTI to scramble and retrieve the PDCCH of the proprietary message, and the user equipment uses G-RNTI to monitor the PDCCH and obtain the proprietary message. The user equipment can clearly know whether the MBS session information of the multicast service corresponding to the G-RNTI in the serving cell is the same as that in all neighboring cells.

其中，当指示信息的比特位总数可以提供多播业务的相邻小区的总数，每一比特位用于指示对应的相邻小区的MBS会话信息与服务小区的MBS会话信息是否相同时，网络设备使用G-RNTI加扰调取专有消息的PDCCH，用户设备使用G-RNTI监听PDCCH，获取专有消息，用户设备可明确G-RNTI所对应的多播业务于服务小区中的MBS会话与每一个提供G-RNTI对应的多播业务的相邻小区中的MBS会话信息是否相同。Among them, when the total number of bits of the indication information can provide the total number of neighboring cells for multicast services, and each bit is used to indicate whether the MBS session information of the corresponding neighboring cell is the same as the MBS session information of the serving cell, the network device uses G-RNTI to scramble and retrieve the PDCCH of the proprietary message, and the user equipment uses G-RNTI to monitor the PDCCH and obtain the proprietary message. The user equipment can clearly determine whether the MBS session of the multicast service corresponding to the G-RNTI in the serving cell is the same as the MBS session information in each neighboring cell that provides the multicast service corresponding to the G-RNTI.

其中，指示信息的比特位总数可以相邻小区的总数，提供多播业务的相邻小区对应的比特位用于指示相邻小区的MBS会话信息与服务小区的MBS会话信息是否相同时，网络设备使用G-RNTI加扰调取专有消息的PDCCH，用户设备使用G-RNTI监听PDCCH，获取专有消息，对于专有消息中提供相应的多播业务的相邻小区的比特位部分，用户设备可明确G-RNTI所对应的多播业务于服务小区中的MBS会话与每一个提供G-RNTI对应的多播业务的相邻小区中的MBS会话信息是否相同，对于不提供相应的多播业务的相邻小区的比特位部分，用户设备可以不进行解码或读取，或者认为这些比特位所指示的信息没有意义。Among them, the total number of bits of the indication information can be the total number of neighboring cells. The bits corresponding to the neighboring cells providing multicast services are used to indicate whether the MBS session information of the neighboring cells is the same as the MBS session information of the serving cell. The network device uses the G-RNTI to scramble and call the PDCCH of the dedicated message. The user equipment uses the G-RNTI to monitor the PDCCH and obtain the dedicated message. For the bit part of the neighboring cells providing the corresponding multicast service in the dedicated message, the user equipment can clearly know whether the MBS session of the multicast service corresponding to the G-RNTI in the serving cell is the same as the MBS session information in each neighboring cell that provides the multicast service corresponding to the G-RNTI. For the bit part of the neighboring cell that does not provide the corresponding multicast service, the user equipment may not decode or read it, or consider that the information indicated by these bits is meaningless.

需要注意的是，指示信息可以是RRC层消息，可以是PDCP层消息，可以是RLC层消息、可以是MAC层消息，可以是PHY层消息。It should be noted that the indication information may be an RRC layer message, a PDCP layer message, an RLC layer message, a MAC layer message, or a PHY layer message.

本发明还提供一种多播配置指示装置，如图3所示，包括：The present invention also provides a multicast configuration indication device, as shown in FIG3 , comprising:

生成模块1，包括：Generate module 1, including:

第一生成单元11，用于生成服务小区的MBS多播配置信息，MBS多播配置信息包括对应于多播业务的MBS会话信息，使处于RRC非激活态下的用户设备在服务小区内接收多播业务时，以服务小区的MBS多播配置信息中的MBS会话信息进行接收；The first generating unit 11 is used to generate MBS multicast configuration information of the serving cell, wherein the MBS multicast configuration information includes MBS session information corresponding to the multicast service, so that when a user equipment in an RRC inactive state receives the multicast service in the serving cell, the user equipment receives the multicast service with the MBS session information in the MBS multicast configuration information of the serving cell;

第二生成单元12，用于生成指示信息，指示信息用于指示服务小区的MBS多播配置信息中对应于多播业务的MBS会话信息，和相邻小区的MBS多播配置信息中对应于多播业务的MBS会话信息是否相同；The second generating unit 12 is used to generate indication information, where the indication information is used to indicate the MBS session information corresponding to the multicast service in the MBS multicast configuration information of the serving cell and the MBS session information corresponding to the multicast service in the MBS multicast configuration information of the neighboring cell. Whether the MBS session information is the same;

发送模块2，用于将服务小区的MBS多播配置信息和指示信息发送至用户设备，如果服务小区和相邻小区的MBS会话信息相同，用户设备从服务小区移动至相邻小区时，将以服务小区的MBS会话信息继续接收多播业务。The sending module 2 is used to send the MBS multicast configuration information and indication information of the serving cell to the user equipment. If the MBS session information of the serving cell and the neighboring cell is the same, when the user equipment moves from the serving cell to the neighboring cell, it will continue to receive the multicast service with the MBS session information of the serving cell.

在本发明一种实施方式中，指示信息的比特位总数为0比特，用于表示所有的相邻小区与服务小区的MBS会话信息是否相同，或表示服务小区没有提供相邻小区中的MBS会话信息；或所有相邻小区均不提供多播业务；或In one embodiment of the present invention, the total number of bits of the indication information is 0 bits, which is used to indicate whether the MBS session information of all neighboring cells is the same as that of the serving cell, or to indicate that the serving cell does not provide the MBS session information in the neighboring cell; or that all neighboring cells do not provide multicast services; or

指示信息的比特位总数为1比特，用于表示所有的相邻小区与服务小区的MBS会话信息是否相同；或The total number of bits of the indication information is 1 bit, which is used to indicate whether the MBS session information of all neighboring cells is the same as that of the serving cell; or

指示信息的比特位总数为提供多播业务的相邻小区的总数，每一比特位用于指示对应的相邻小区的MBS会话信息与服务小区的MBS会话信息是否相同；或The total number of bits of the indication information is the total number of neighboring cells providing multicast services, and each bit is used to indicate whether the MBS session information of the corresponding neighboring cell is the same as the MBS session information of the serving cell; or

指示信息的比特位总数为相邻小区的总数，提供多播业务的相邻小区对应的比特位用于指示相邻小区的MBS会话信息与服务小区的MBS会话信息是否相同。The total number of bits of the indication information is the total number of neighboring cells, and the bits corresponding to the neighboring cells providing multicast services are used to indicate whether the MBS session information of the neighboring cells is the same as the MBS session information of the serving cell.

在本发明一种实施方式中，发送模块可以包括：In one embodiment of the present invention, the sending module may include:

第一发送单元，用于向用户设备发送RRC连接释放消息，RRC连接释放消息携带指示信息。The first sending unit is used to send an RRC connection release message to the user equipment, where the RRC connection release message carries indication information.

第二发送单元，用于向用户设备发送多播MCCH信息，多播MCCH信息携带指示信息。The second sending unit is used to send multicast MCCH information to the user equipment, where the multicast MCCH information carries indication information.

第三发送单元，用于向用户设备发送承载指示信息的专有消息，以直接发送指示信息。The third sending unit is used to send a dedicated message carrying the indication information to the user equipment, so as to directly send the indication information.

在本发明一种实施方式中，第三发送单元包括：In one embodiment of the present invention, the third sending unit includes:

在本发明一种实施方式中，第一发送单元可以包括：In one embodiment of the present invention, the first sending unit may include:

在本发明一种实施方式中，第二发送单元可以包括： In one implementation of the present invention, the second sending unit may include:

在本发明一种实施方式中，RRC连接释放消息和/或多播MCCH信息包括服务小区的MBS多播配置信息；In one embodiment of the present invention, the RRC connection release message and/or the multicast MCCH information includes MBS multicast configuration information of the serving cell;

MBS多播配置信息包括：MBS multicast configuration information includes:

和/或and/or

本发明还提供一种多播配置指示装置，如图4所示，包括：The present invention also provides a multicast configuration indication device, as shown in FIG4 , comprising:

接收模块3，用于接收服务小区的MBS多播配置信息，MBS多播配置信息包括对应于多播业务的MBS会话信息，使处于RRC非激活态下的用户设备在服务小区内接收多播业务时，以服务小区的MBS多播配置信息中的MBS会话信息进行接收；以及A receiving module 3 is used to receive MBS multicast configuration information of a serving cell, wherein the MBS multicast configuration information includes MBS session information corresponding to a multicast service, so that when a user equipment in an RRC inactive state receives a multicast service in the serving cell, the user equipment receives the multicast service using the MBS session information in the MBS multicast configuration information of the serving cell; and

处理模块4，如果服务小区和相邻小区的MBS会话信息相同，用户设备从服务小区移动至相邻小区时，将以服务小区的MBS会话信息继续接收多播业务。Processing module 4: If the MBS session information of the serving cell and the neighboring cell is the same, when the user equipment moves from the serving cell to the neighboring cell, it will continue to receive the multicast service with the MBS session information of the serving cell.

指示信息的比特位总数为相邻小区的总数，提供多播业务的相邻小区对应的比特位用于指示相邻小区的MBS会话信息与服务小区的MBS会话信息是否相同。 The total number of bits of the indication information is the total number of neighboring cells, and the bits corresponding to the neighboring cells providing multicast services are used to indicate whether the MBS session information of the neighboring cells is the same as the MBS session information of the serving cell.

在本发明一种实施方式中，接收模块可以包括：In one embodiment of the present invention, the receiving module may include:

第一接收单元，用于接收来自网络设备的RRC连接释放消息，获取RRC连接释放消息携带的指示信息。The first receiving unit is used to receive an RRC connection release message from a network device and obtain indication information carried in the RRC connection release message.

第二接收单元，用于接收来自网络设备的多播MCCH信息，获取多播MCCH信息携带的指示信息。The second receiving unit is used to receive multicast MCCH information from the network device and obtain indication information carried by the multicast MCCH information.

第三接收单元，用于向用户设备发送承载指示信息的专有消息，以直接发送指示信息。The third receiving unit is used to send a dedicated message carrying the indication information to the user equipment, so as to directly send the indication information.

在本发明一种实施方式中，第三接收单元包括：In one embodiment of the present invention, the third receiving unit includes:

在本发明一种实施方式中，第一接收单元包括：In one embodiment of the present invention, the first receiving unit includes:

在本发明一种实施方式中，第二接收单元包括：In one embodiment of the present invention, the second receiving unit includes:

MBS多播配置信息包括：MBS multicast configuration information includes:

和/或and/or

相邻小区列表，相邻小区列表至少包含一个相邻小区的标识，相邻小区至少提供一种与服务小区相同的多播业务； A neighboring cell list, where the neighboring cell list includes at least one neighboring cell identifier, and the neighboring cell provides at least one multicast service that is the same as that of the serving cell;

本发明还提供一种基站，包括处理器和存储器，存储器设置为存储计算机程序，计算机程序被所述处理器执行时，使得处理器实现如上述发送指示信息的多播配置指示方法。The present invention also provides a base station, comprising a processor and a memory, wherein the memory is configured to store a computer program, and when the computer program is executed by the processor, the processor implements the multicast configuration indication method for sending indication information as described above.

本发明还提供一种终端，包括处理器和存储器，存储器设置为存储计算机程序，计算机程序被所述处理器执行时，使得处理器实现上述接收指示信息的多播配置指示方法。The present invention also provides a terminal, comprising a processor and a memory, wherein the memory is configured to store a computer program, and when the computer program is executed by the processor, the processor implements the multicast configuration indication method for receiving indication information.

本发明还提供一种计算机可读存储介质，包括计算机程序，所述计算机程序被处理器执行时，使处理器实现所述任一项方法。The present invention also provides a computer-readable storage medium, comprising a computer program, and when the computer program is executed by a processor, the processor is enabled to implement any one of the methods.

在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其他任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时，全部或部分地产生按照本申请实施例的流程或功能。计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线)或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如数字视频光盘(digital video disc，DVD))、或者半导体介质(例如固态硬盘(solid state disk，SSD))等。In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or other arbitrary combinations. When implemented using software, it can 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 loading and executing computer program instructions on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable devices. The computer instruction can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instruction can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server, a data center, etc. that contains one or more available media integrations. Available media can be magnetic media (e.g., floppy disks, hard disks, tapes), optical media (e.g., digital video discs (DVD)), or semiconductor media (e.g., solid state disks (SSD)), etc.

本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

以上仅为本发明较佳的实施例，并非因此限制本发明的实施例及保护范围，对于本领域技术人员而言，应当能够意识到凡运用本发明说明书及图示内容所做出的等同替换和显而易见的变化所得到的方案，均应当包含在本发明的保护范围内。 The above are only preferred embodiments of the present invention, and are not intended to limit the embodiments and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

A multicast configuration indication method, characterized in that the method is performed by a network device, and the method comprises:

Generate MBS multicast configuration information of the serving cell, the MBS multicast configuration information including MBS session information corresponding to the multicast service, so that when a user equipment in an RRC inactive state receives the multicast service in the serving cell, the user equipment receives the multicast service using the MBS session information in the MBS multicast configuration information of the serving cell;

generating indication information, the indication information being used to indicate whether the MBS session information corresponding to the multicast service in the MBS multicast configuration information of the serving cell and the MBS session information corresponding to the multicast service in the MBS multicast configuration information of the neighboring cell are the same;

The MBS multicast configuration information of the serving cell and the indication information are sent to the user equipment. If the MBS session information of the serving cell and the neighboring cell is the same, when the user equipment moves from the serving cell to the neighboring cell, it will continue to receive the multicast service with the MBS session information of the serving cell.

The multicast configuration indication method according to claim 1, characterized in that:

The total number of bits of the indication information is 0 bits, which is used to indicate whether the MBS session information of all neighboring cells is the same as that of the serving cell, or to indicate that the serving cell does not provide the MBS session information in the neighboring cells; or to indicate that all neighboring cells do not provide the multicast service; or

The total number of bits of the indication information is 1 bit, which is used to indicate whether the MBS session information of all neighboring cells is the same as that of the serving cell; or

The total number of bits of the indication information is the total number of neighboring cells providing the multicast service, and each bit is used to indicate whether the MBS session information of the corresponding neighboring cell is the same as the MBS session information of the serving cell; or

The total number of bits of the indication information is the total number of neighboring cells, and the bits corresponding to the neighboring cells providing the multicast service are used to indicate whether the MBS session information of the neighboring cells is the same as the MBS session information of the serving cell.

The multicast configuration indication method according to claim 1 or 2 is characterized in that each bit in the indication information is assigned a value of 0 or 1 to respectively indicate that the MBS session information of the serving cell and the MBS session information of the neighboring cell are the same, or different, or that the neighboring cell does not provide the multicast service.

The multicast configuration indication method according to claim 1, wherein the process of the network device sending the indication information comprises:

Sending an RRC connection release message to the user equipment, where the RRC connection release message carries the indication information;

and/or

Sending multicast MCCH information to the user equipment, where the multicast MCCH information carries the indication information;

and/or

A dedicated message is sent to the user equipment, where the dedicated message carries the indication information.

The multicast configuration indication method according to claim 1, 2 or 4, characterized in that the process of sending a dedicated message to the user equipment comprises:

The PDCCH that schedules the dedicated message is scrambled using the G-RNTI, and the dedicated message carries the indication information, which is used to indicate whether the MBS session information of the multicast service corresponding to the G-RNTI in the serving cell is the same as the MBS session information of the neighboring cell.

The multicast configuration indication method according to claim 1, 2 or 4, characterized in that the process of sending the RRC connection release message and/or the multicast MCCH information to the user equipment comprises:

The PDCCH that schedules the RRC connection release message is scrambled using the C-RNTI corresponding to the user equipment, and/or the PDCCH that schedules the multicast MCCH information is scrambled using a specific wireless network temporary identifier, the RRC connection release message and/or the multicast MCCH information carries the indication information, and the indication information is used to indicate whether the MBS session information of the user equipment in the serving cell is the same as the MBS session information of the adjacent cell.

The multicast configuration indication method according to claim 6, characterized in that the RRC connection release message and/or the multicast MCCH information includes MBS multicast configuration information of the serving cell;

The MBS multicast configuration information includes:

at least one MBS session information, each MBS session information corresponds to a multicast service, the indication information is independent of the MBS session information of the serving cell, or the indication information is in the MBS session information of the serving cell;

and/or

A neighboring cell list, the neighboring cell list comprising at least one neighboring cell identifier, the neighboring cell providing at least one multicast service that is the same as that of the serving cell;

The indication information is associated with the multicast service and the neighboring cell to indicate whether the MBS session information of the user equipment in the serving cell is the same as the MBS session information of the neighboring cell.

A multicast configuration indication method, characterized in that the method is executed by a user equipment, and the method comprises:

Acquire MBS multicast configuration information of the serving cell, the MBS multicast configuration information including MBS session information corresponding to the multicast service, so that when a user equipment in an RRC inactive state receives the multicast service in the serving cell, the user equipment receives the multicast service using the MBS session information in the MBS multicast configuration information of the serving cell;

Acquire indication information, where the indication information is used to indicate whether the MBS session information corresponding to the multicast service in the MBS multicast configuration information of the serving cell and the MBS session information corresponding to the multicast service in the MBS multicast configuration information of the neighboring cell are the same;

If the MBS session information of the serving cell and the neighboring cell is the same, when the user equipment moves from the serving cell to the neighboring cell, it will continue to receive the multicast service with the MBS session information of the serving cell.

The multicast configuration indication method according to claim 8, characterized in that:

The multicast configuration indication method according to claim 8 or 9 is characterized in that each bit in the indication information is assigned a value of 0 or 1 to respectively indicate that the MBS session information of the serving cell and the MBS session information of the neighboring cell are the same, or different, or that the neighboring cell does not provide the multicast service.

The multicast configuration indication method according to claim 8, wherein the process of the user equipment receiving the indication information comprises:

Receiving an RRC connection release message from a network device, and acquiring the indication information carried by the RRC connection release message;

and/or

Receiving multicast MCCH information from a network device, and acquiring the indication information carried by the multicast MCCH information;

and/or

A dedicated message carrying the indication information is received from a network device, and the indication information carried by the dedicated message is acquired.

The multicast configuration indication method according to claim 8, 9 or 11, characterized in that the process of receiving a proprietary message from a network device comprises:

Monitor the PDCCH scrambled by the G-RNTI, and receive the dedicated message according to the scheduling information in the PDCCH, wherein the dedicated message carries the indication information, which is used to indicate whether the MBS session information of the multicast service corresponding to the G-RNTI in the serving cell is the same as the MBS session information of the adjacent cell.

The multicast configuration indication method according to claim 8, 9 or 11, characterized in that the process of receiving the RRC connection release message and/or the multicast MCCH information from the network device comprises:

Monitor the PDCCH scrambled by the C-RNTI, receive the PDCCH of the RRC connection release message according to the scheduling information in the PDCCH, and/or use a specific radio network temporary identifier to monitor the PDCCH, and receive the PDCCH of the RRC connection release message according to the scheduling information in the PDCCH. The multicast MCCH information is received by the user equipment, and the indication information carried by the RRC connection release message and/or the multicast MCCH information is obtained, where the indication information is used to indicate whether the MBS session information of the user equipment in the serving cell is the same as the MBS session information of the neighboring cell.

The multicast configuration indication method according to claim 13, characterized in that the RRC connection release message and/or the multicast MCCH information includes MBS multicast configuration information of the serving cell;

The MBS multicast configuration information includes:

and/or

A multicast configuration indication device, characterized by comprising:

Generate modules, including:

A first generating unit is configured to generate MBS multicast configuration information of a serving cell, wherein the MBS multicast configuration information includes MBS session information corresponding to a multicast service, so that when a user equipment in an RRC inactive state receives the multicast service in the serving cell, the user equipment receives the multicast service using the MBS session information in the MBS multicast configuration information of the serving cell;

a second generating unit, configured to generate indication information, wherein the indication information is used to indicate whether the MBS session information corresponding to the multicast service in the MBS multicast configuration information of the serving cell and the MBS session information corresponding to the multicast service in the MBS multicast configuration information of the neighboring cell are the same;

A sending module is used to send the MBS multicast configuration information of the serving cell and the indication information to the user equipment. If the MBS session information of the serving cell and the neighboring cell is the same, when the user equipment moves from the serving cell to the neighboring cell, it will continue to receive the multicast service with the MBS session information of the serving cell.

The multicast configuration indicating device according to claim 15, characterized in that:

The total number of bits of the indication information is the total number of neighboring cells providing the multicast service, and each bit is used to indicate Indicates whether the MBS session information of the corresponding neighboring cell is the same as the MBS session information of the serving cell; or

The multicast configuration indication device according to claim 15 or 16 is characterized in that each bit in the indication information is assigned a value of 0 or 1 to respectively indicate that the MBS session information of the serving cell and the MBS session information of the neighboring cell are the same, or different, or that the neighboring cell does not provide the multicast service.

The multicast configuration indication device according to claim 15, characterized in that the sending module comprises:

A first sending unit, configured to send an RRC connection release message to a user equipment, where the RRC connection release message carries the indication information;

and/or

A second sending unit, configured to send multicast MCCH information to the user equipment, where the multicast MCCH information carries the indication information;

and/or

The third sending unit is used to send a dedicated message carrying the indication information to the user equipment, so as to directly send the indication information.

The multicast configuration indication device according to claim 15, 16 or 18, characterized in that the third sending unit comprises:

The multicast configuration indication device according to claim 15, 16 or 18, characterized in that the first sending unit comprises:

using the C-RNTI corresponding to the user equipment to scramble the PDCCH that schedules the RRC connection release message, wherein the RRC connection release message carries the indication information, wherein the indication information is used to indicate whether the MBS session information of the user equipment in the serving cell is the same as the MBS session information of the neighboring cell;

and/or

The second sending unit includes:

A PDCCH for scheduling the multicast MCCH information is scrambled using a specific radio network temporary identifier. The multicast MCCH information carries the indication information. The indication information is used to indicate whether the MBS session information of the user equipment in the serving cell is the same as the MBS session information of the neighboring cell.

The multicast configuration indication device according to claim 20, characterized in that the RRC connection release message and/or the multicast MCCH information includes MBS multicast configuration information of the serving cell;

The MBS multicast configuration information includes:

and/or

A multicast configuration indication device, characterized by comprising:

a receiving module, configured to receive MBS multicast configuration information of a serving cell, wherein the MBS multicast configuration information includes MBS session information corresponding to a multicast service, so that when a user equipment in an RRC inactive state receives the multicast service in the serving cell, the user equipment receives the multicast service using the MBS session information in the MBS multicast configuration information of the serving cell; and

receiving indication information, where the indication information is used to indicate whether the MBS session information corresponding to the multicast service in the MBS multicast configuration information of the serving cell and the MBS session information corresponding to the multicast service in the MBS multicast configuration information of the neighboring cell are the same;

The processing module, if the MBS session information of the serving cell and the neighboring cell is the same, when the user equipment moves from the serving cell to the neighboring cell, it will continue to receive the multicast service with the MBS session information of the serving cell.

The multicast configuration indication device according to claim 22, characterized in that:

The multicast configuration indication device according to claim 22 or 23 is characterized in that each bit in the indication information is assigned a value of 0 or 1 to respectively indicate that the MBS session information of the serving cell and the MBS session information of the neighboring cell are the same, or different, or that the neighboring cell does not provide the multicast service.

The multicast configuration indication device according to claim 22, characterized in that the receiving module comprises:

A first receiving unit, configured to receive an RRC connection release message from a network device, and obtain the indication information carried by the RRC connection release message;

and/or

A second receiving unit, configured to receive multicast MCCH information from a network device, and obtain the indication information carried by the multicast MCCH information;

and/or

The third receiving unit is used to send a dedicated message carrying the indication information to the user equipment, so as to directly send the indication information.

The multicast configuration indication device according to claim 22, 23 or 25, characterized in that the third receiving unit comprises:

The multicast configuration indication method according to claim 22, 23 or 25, wherein the first receiving unit comprises:

Monitor the PDCCH encrypted by the C-RNTI, receive the PDCCH of the RRC connection release message according to the scheduling information in the PDCCH, and obtain the indication information carried by the RRC connection release message, wherein the indication information is used to indicate whether the MBS session information of the user equipment in the serving cell is the same as the MBS session information of the neighboring cell.

and/or

The second receiving unit comprises:

Use a specific wireless network temporary identifier to monitor PDCCH, receive the multicast MCCH information according to the scheduling information in the PDCCH, and obtain the indication information carried by the multicast MCCH information, wherein the indication information is used to indicate whether the MBS session information of the user equipment in the serving cell is the same as the MBS session information of the adjacent cell.

The multicast configuration indication device according to claim 27, characterized in that the RRC connection release message and/or the multicast MCCH information includes MBS multicast configuration information of the serving cell;

The MBS multicast configuration information includes:

and/or

A neighboring cell list, wherein the neighboring cell list includes at least one neighboring cell identifier, and the neighboring cell at least Provide a multicast service that is the same as that of the serving cell;

A base station comprises a processor and a memory, wherein the memory is configured to store a computer program, and when the computer program is executed by the processor, the processor implements the method according to any one of claims 1 to 7.

A terminal comprises a processor and a memory, wherein the memory is configured to store a computer program, and when the computer program is executed by the processor, the processor implements the method according to any one of claims 8 to 14.

A computer-readable storage medium comprises a computer program, wherein when the computer program is executed by a processor, the processor implements the method according to any one of claims 1 to 14.