WO2016106755A1

WO2016106755A1 - Method, device and system for supporting multimedia broadcast multicast service transmission

Info

Publication number: WO2016106755A1
Application number: PCT/CN2014/096067
Authority: WO
Inventors: 李元杰; 张屹; 王婷
Original assignee: 华为技术有限公司
Priority date: 2014-12-31
Filing date: 2014-12-31
Publication date: 2016-07-07
Also published as: CN107113575A; CN107113781B; CN107113575B; WO2016107600A1; CN107113781A

Abstract

Disclosed are a method, device and system for supporting multimedia broadcast multicast service transmission. The communication system comprises: a first wireless access device and a second wireless access device, wherein the first wireless access device manages a first cell, and the second wireless access device manages a second cell, with the first cell belonging to a first MBMS single frequency network area (MA), and the second cell belonging to a second MA; and the first wireless access device and the second wireless access device acquire the same MBMS synchronization identifier, generate the same MBMS synchronization signal and broadcast the MBMS synchronization signal over the same radio resource. By using the technical solution of the embodiments of the present invention, it is more convenient in actual deployment, multiple MAs cooperatively transmitting the same MBMS synchronization signal can be realized, which can not only enlarge the coverage range of the synchronization signal, but also can save transmission resources.

Description

支持多媒体广播多播业务传输的方法，设备及***Method, device and system for supporting multimedia broadcast multicast service transmission

技术领域Technical field

本发明涉及无线通信技术领域，具体涉及一种支持多媒体广播多播业务传输的方法，设备及***。The present invention relates to the field of wireless communication technologies, and in particular, to a method, device and system for supporting multimedia broadcast multicast service transmission.

背景技术Background technique

在无线通信网络中，用户基于无线接入设备提供的接入功能，接入无线网络即可享受通信服务。以移动通信网络为例，在用户设备(user equipment，简称：UE)与基站(base station，简称：BS)建立连接后，网络通常会为用户建立点对点的单播承载，以提供用户级的通信服务，如语音呼叫、视频点播、文件下载等。In a wireless communication network, a user can enjoy communication services based on an access function provided by a wireless access device and accessing a wireless network. Taking a mobile communication network as an example, after a user equipment (UE) establishes a connection with a base station (base station, BS for short), the network usually establishes a point-to-point unicast bearer for the user to provide user-level communication. Services such as voice calls, video on demand, file downloads, etc.

随着智能手机和平板电脑的快速普及，用户对于移动视频业务、应用程序下载等数据业务的需求与日俱增，网络承载的数据流量也急剧攀升。此时，如果沿用单播承载方式，大量的单播承载将会占用大量的网络资源，容易引发网络拥塞问题。为了能更好地适应这些应用场景，多媒体广播多播业务(multimedia broadcast multicast service，简称：MBMS)应运而生。MBMS通过建立单点对多点的多播承载，可以同时向多个用户提供相同内容。因此，特别适用于用户兴趣度集中的场景，如：重大赛事直播、定制视频推送、应用程序更新等。With the rapid spread of smartphones and tablets, users' demand for data services such as mobile video services and application downloads is increasing day by day, and the data traffic carried by the network has also risen sharply. At this time, if the unicast bearer mode is used, a large number of unicast bearers will occupy a large amount of network resources, which may easily cause network congestion. In order to better adapt to these application scenarios, a multimedia broadcast multicast service (MBMS) has emerged. MBMS can provide the same content to multiple users at the same time by establishing a single-to-multipoint multicast bearer. Therefore, it is especially suitable for scenarios where user interest is concentrated, such as: live broadcast of major events, customized video push, application update, etc.

图1为现有技术中移动通信网络的部署示意图，包括一个或多个基站。每个基站管理一个或多个小区(cell)，图1中以一个基站管理一个小区为例。每个小区中分布有若干个用户设备，这些用户设备与基站可以通过空口(air interface)连接，接入小区后即可享受通信服务。以体育直播为例，假设多个用户设备同时请求体育直播服务。如图1的左上方所示，基站可以通过多个点对点的单播承载，分别向多个用户设备(UE 1,UE 2,UE 3)传输体育直播的视频内容。由于不同的单播承载会占用不同的网络资源，如果用户设备的数目过多，或者网络资源有限，则容易出现视频卡顿或中断情况，影响用户的业务体验。如图1左下方所示，基站还可以通过一个单点对多点的多播承载，同时向多个用户设备(UE 1’,UE 2’,UE 3’)传输相同的视频内容。由于多播承载的占用的网络资源，几乎不会随着用户设备数目的增加而变化。因此，能有效地保障用户的业务体验，并且用户设备的数目越多，网络资源的利用率越高。FIG. 1 is a schematic diagram of deployment of a mobile communication network in the prior art, including one or more base stations. Each base station manages one or more cells. In FIG. 1, one base station manages one cell as an example. There are several user equipments distributed in each cell. These user equipments and base stations can be connected through an air interface. After accessing the cell, they can enjoy communication services. Taking the live sports broadcast as an example, it is assumed that a plurality of user equipments simultaneously request a sports live broadcast service. As shown in the upper left of Figure 1, the base station can The video content of the live sports broadcast is transmitted to a plurality of user equipments (UE 1, UE 2, UE 3) through a plurality of point-to-point unicast bearers. If different unicast bearers occupy different network resources, if the number of user equipments is too large, or network resources are limited, video jams or interruptions may occur, affecting the user's service experience. As shown in the lower left of Fig. 1, the base station can also transmit the same video content to a plurality of user equipments (UE 1', UE 2', UE 3') through a single-point to multi-point multicast bearer. Due to the occupied network resources of the multicast bearer, it hardly changes as the number of user devices increases. Therefore, the service experience of the user can be effectively guaranteed, and the more the number of user devices, the higher the utilization of network resources.

在长期演进(long term evolution，简称LTE)***中，MBMS传输包括单小区传输模式，以及MBMS单频网络(multimedia broadcast multicast service single frequency network,简称：MBSFN)传输模式。MBSFN传输是指，在多个小区中采用相同的无线资源配置，同时传输相同的数据内容。如图1所示，小区1、小区2和小区3可以采用相同的无线资源配置，由基站1、基站2和基站3同时传输相同的视频内容。这样，用户设备(UE4)在接收视频内容的时候，来自多个小区的信号，如同来自一个小区的多径信号，有效地克服了小区间的干扰。因此，MBSFN传输的增益包括接收机的合并增益，以及减少的小区间的干扰，从而进一步地提升了用户(尤其是小区边缘用户)的业务体验。In a long term evolution (LTE) system, the MBMS transmission includes a single cell transmission mode and a multimedia broadcast multicast service single frequency network (MBSFN) transmission mode. MBSFN transmission refers to using the same radio resource configuration in multiple cells while transmitting the same data content. As shown in FIG. 1, cell 1, cell 2, and cell 3 can adopt the same radio resource configuration, and the same video content is simultaneously transmitted by the base station 1, the base station 2, and the base station 3. In this way, when the user equipment (UE4) receives the video content, the signals from the multiple cells, like the multipath signals from one cell, effectively overcome the interference between the cells. Therefore, the gain of the MBSFN transmission includes the combined gain of the receiver and the reduced inter-cell interference, thereby further improving the service experience of the user, especially the cell edge user.

在LTE中，MBMS也被称为演进的MBMS(evolved MBMS,简称为eMBMS)，除明确强调外，本申请对这两者不作区分。为了支持MBSFN传输，LTE中定义了MBSFN同步区(MBSFN synchronization area)和MBSFN区域(MBSFN area,简称：MA)的概念。MBSFN同步区内的基站能够保持时间同步，并进行MBSFN传输。一个基站的单个载波上的所有小区只能属于一个MBSFN同步区。MBSFN传输以MA为单位，MA由MBSFN同步区内的一些小区组成，属于该MA的所有小区协作完成MBSFN传输。例如，图1中的小区1、小区2和小区3可以组成一个MA。一个MBSFN 同步区可以包括一个或多个MA，多个MA之间可以相互重叠，一个小区可以同时属于多个MA。In LTE, MBMS is also referred to as evolved MBMS (evolved MBMS, abbreviated as eMBMS), and the present application does not distinguish between the two unless explicitly emphasized. In order to support MBSFN transmission, the concept of MBSFN synchronization area (MBSFN area) and MBSFN area (MBSFN area, abbreviated as MA) is defined in LTE. The base station in the MBSFN synchronization area can maintain time synchronization and perform MBSFN transmission. All cells on a single carrier of a base station can belong to only one MBSFN synchronization area. The MBSFN transmission is in units of MA, and the MA is composed of some cells in the MBSFN synchronization area, and all cells belonging to the MA cooperate to complete MBSFN transmission. For example, cell 1, cell 2, and cell 3 in FIG. 1 may constitute one MA. One MBSFN The synchronization area may include one or more MAs, and multiple MAs may overlap each other, and one cell may belong to multiple MAs at the same time.

图2为现有技术中MBMS应用的示意图。如图2所示，一个MBSFN同步区包括三个MA(MA 1,MA 2,MA 3)。其中，MA 1包括三个小区，MA 2包括七个小区，MA 3包括两个小区。MA 1和MA 2部分重叠，MA 2和MA 3相邻。其中，小区2和小区3既属于MA 1，也属于MA 2。2 is a schematic diagram of an MBMS application in the prior art. As shown in FIG. 2, one MBSFN synchronization area includes three MAs (MA 1, MA 2, MA 3). Among them, MA 1 includes three cells, MA 2 includes seven cells, and MA 3 includes two cells. MA 1 and MA 2 partially overlap, and MA 2 and MA 3 are adjacent. Among them, cell 2 and cell 3 belong to both MA 1 and MA 2.

目前实际部署的LTE***中，通常采用混合载波的形式实现MBMS传输。参与MBMS传输的小区采用时分复用方式配置无线资源，同一个载波上既可以支持MBMS传输，也能够支持单播传输。这种类型的小区被称为MBMS/单播混合小区(MBMS/Unicast-mixed cell)。用户设备在接收MBMS数据之前，需要与小区进行同步，随后获取MBMS数据相关的控制信息。在MBMS/单播混合小区，同步信号以小区为单位进行发送，同步信号中携带有该小区的小区标识(cell identity，简称：Cell ID或CI)。不同的小区发送不同的同步信号，不同的同步信号携带有不同的小区标识。用户设备通过检测小区的同步信道进行同步，并确定唯一的小区标识，进而接收广播信息。即同步信道和广播信道仍然以小区为单位，承载MBMS数据和控制信息的多播信道以MA为单位。In the currently deployed LTE system, MBMS transmission is usually implemented in the form of a hybrid carrier. The cells participating in the MBMS transmission use the time division multiplexing method to configure the radio resources, and the same carrier can support both the MBMS transmission and the unicast transmission. This type of cell is called an MBMS/Unicast-mixed cell. Before receiving the MBMS data, the user equipment needs to synchronize with the cell, and then acquire control information related to the MBMS data. In the MBMS/unicast hybrid cell, the synchronization signal is transmitted in units of cells, and the synchronization signal carries the cell identity (Cell ID or CI) of the cell. Different cells send different synchronization signals, and different synchronization signals carry different cell identifiers. The user equipment synchronizes by detecting the synchronization channel of the cell, and determines a unique cell identity, thereby receiving broadcast information. That is, the synchronization channel and the broadcast channel are still in units of cells, and the multicast channel carrying MBMS data and control information is in units of MA.

此外，早期的LTE标准讨论中，也考虑采用专用载波的形式实现MBMS传输，小区可专门使用一个载波进行MBMS传输，该载波可称为MBMS专用载波。这种类型的小区被称为MBMS专用小区(MBMS-dedicated cell)。但直到现在，LTE标准中关于MBMS专用小区的具体方案都没有结果。例如，MBMS小区的同步过程，MBMS数据及相关控制信息的传输过程，在标准中仍然是一片空白。In addition, in the discussion of the early LTE standard, MBMS transmission is also considered in the form of a dedicated carrier, and the cell can exclusively use one carrier for MBMS transmission, and the carrier can be called an MBMS dedicated carrier. This type of cell is called an MBMS-dedicated cell. But until now, the specific schemes for MBMS dedicated cells in the LTE standard have no results. For example, the synchronization process of the MBMS cell, the transmission process of the MBMS data and related control information, is still blank in the standard.

现有技术中，关于MBMS专用载波的同步方案也有讨论。例如，借助于小区已有的下行同步方案，在该小区中增加MBMS专用载波，并设置该MBMS专用载波和该小区的已有载波保持下行同步。用户设备与该小区同步之后，即可实现与MBMS专用载波的同步。但是，这种方案在实际部署中会有较多限制，要求MBMS专用载波的范围，小于或等于现有小区的覆盖范围。In the prior art, a synchronization scheme for an MBMS dedicated carrier is also discussed. For example, by means of the existing downlink synchronization scheme of the cell, an MBMS dedicated carrier is added in the cell, and the MBMS dedicated carrier and the existing carrier of the cell are set to maintain downlink synchronization. User equipment is the same as the cell After the step, synchronization with the MBMS dedicated carrier can be achieved. However, this scheme has more restrictions in actual deployment, and requires the range of the dedicated carrier of the MBMS to be less than or equal to the coverage of the existing cell.

此外，也有方案考虑将MBMS专用载波配置为仅支持MBSFN传输的载波，认为此时原有的小区概念需要重新讨论，以小区为单位配置同步信道及广播信道的方法不再适用。作为替代，该方案建议以MA为单位配置同步信道和广播信道。换言之，相同的MA内传输相同的同步信号，该同步信号携带该MA的唯一标识，不同的MA间传输不同的同步信号。对于MA重叠的情况，如一个较大的MA由多个较小的MA组成，通过这些较小的MA的覆盖的组合来完成这个较大的MA的覆盖。这个较大的MA本身无需再单独配置同步信道或广播信道。如果用户设备需要接入这个较大的MA，可以通过检测这些较小的MA的广播信道和控制信道实现。In addition, there are also plans to consider configuring the MBMS dedicated carrier to only support the carrier of the MBSFN transmission. It is considered that the original cell concept needs to be re-discussed, and the method of configuring the synchronization channel and the broadcast channel in the cell unit is no longer applicable. Instead, the scheme proposes to configure the synchronization channel and the broadcast channel in units of MA. In other words, the same synchronization signal is transmitted in the same MA, and the synchronization signal carries the unique identifier of the MA, and different synchronization signals are transmitted between different MAs. For the case where the MA overlaps, such as a larger MA consisting of multiple smaller MAs, the coverage of this larger MA is accomplished by the combination of coverage of these smaller MAs. This larger MA itself does not need to separately configure the synchronization channel or the broadcast channel. If the user equipment needs to access this larger MA, it can be implemented by detecting the broadcast channels and control channels of these smaller MAs.

但是，该方案在实际部署中，仍然存在一定限制。一方面，考虑到这个较大MA的覆盖需要依赖于这些较小MA各自的覆盖，以及不同MA之间存在相互干扰，每个MA的覆盖应当考虑到最坏情况。对于广播信道的覆盖要求，该方案建议与MBMS/单播混合小区的覆盖要求相同。因此，在实际部署中，该方案对于网络的覆盖要求较高。另一方面，该方案对于MA部分重叠的情况可能并不适用。以图2为例，图2中的MA 1和MA 2部分重叠。由于MA 2不是由多个其他MA组成，如果简单地沿用该方案，只在MA 1和MA 3中配置同步信道，则MA 2的覆盖会出现漏洞。为了避免这种情况，可能需要预先规划好MA的配置，这在实际部署中也会造成一定限制。However, there are still some limitations in the actual deployment of the program. On the one hand, considering that the coverage of this larger MA needs to depend on the respective coverage of these smaller MAs, and the mutual interference between different MAs, the coverage of each MA should take into account the worst case. For the coverage requirements of the broadcast channel, the scheme is recommended to be the same as the coverage requirement of the MBMS/unicast hybrid cell. Therefore, in actual deployment, the solution has higher requirements for network coverage. On the other hand, this scheme may not be applicable for the case where the MA overlaps partially. Taking FIG. 2 as an example, MA 1 and MA 2 in FIG. 2 partially overlap. Since the MA 2 is not composed of a plurality of other MAs, if the scheme is simply used, the synchronization channel is only configured in MA 1 and MA 3, and the coverage of the MA 2 may be vulnerable. In order to avoid this situation, it may be necessary to pre-plan the configuration of the MA, which will also impose certain restrictions in the actual deployment.

发明内容Summary of the invention

有鉴于此，本发明实施例中提供了一种支持MBMS传输的方法，设备及***，以利于MBMS传输的实际部署。In view of this, the embodiment of the present invention provides a method for supporting MBMS transmission, and a device And system to facilitate the actual deployment of MBMS transmission.

具体地，本发明实施例可以通过如下技术方案实现：Specifically, the embodiment of the present invention can be implemented by the following technical solutions:

第一方面，提供了一种支持多媒体广播多播业务MBMS传输的无线接入设备，所述无线接入设备管理第一小区，所述第一小区属于第一MBMS单频网络区域MA，所述无线接入设备包括：a first aspect, a radio access device supporting MBMS transmission of a multimedia broadcast multicast service, where the radio access device manages a first cell, where the first cell belongs to a first MBMS single frequency network area MA, Wireless access devices include:

无线接口，与所述无线接口连接的发送器，以及与所述发送器连接的处理器；其中，所述处理器用于控制所述无线接入设备：a wireless interface, a transmitter coupled to the wireless interface, and a processor coupled to the transmitter; wherein the processor is configured to control the wireless access device:

获取MBMS同步标识；根据所述MBMS同步标识生成MBMS同步信号；以及基于预配置的无线资源，广播所述MBMS同步信号；其中，所述MBMS同步标识，所述预配置的无线资源也适用于第二小区，所述第二小区属于第二MA，所述第一MA与所述第二MA不同。Obtaining an MBMS synchronization identifier; generating an MBMS synchronization signal according to the MBMS synchronization identifier; and broadcasting the MBMS synchronization signal based on the pre-configured radio resource; wherein the MBMS synchronization identifier, the pre-configured radio resource is also applicable to The second cell belongs to the second MA, and the first MA is different from the second MA.

结合第一方面，在第一方面的第一种可能的实现方式中，所述MBMS同步标识为第二MA标识，所述第一小区同属于所述第二MA；其中，With reference to the first aspect, in a first possible implementation manner of the first aspect, the MBMS synchronization identifier is a second MA identifier, and the first cell belongs to the second MA;

与所述第一MA相比，所述第二MA包含的小区的数目更多；或者，与所述第一小区相比，所述第二小区覆盖的地理区域更大。The second MA includes more cells than the first MA; or, the second cell covers a larger geographic area than the first cell.

结合第一方面，在第一方面的第二种可能的实现方式中，所述MBMS同步标识为第二MA标识，所述第一小区不属于所述第二MA。With reference to the first aspect, in a second possible implementation manner of the first aspect, the MBMS synchronization identifier is a second MA identifier, and the first cell does not belong to the second MA.

结合第一方面，第一方面的第一种可能的实现方式，或第二种可能的实现方式，在第一方面的第三种可能的实现方式中，所述无线接入设备为基站，所述基站还包括第一接收器；所述处理器用于控制所述无线接入设备获取MBMS同步标识，包括：With reference to the first aspect, the first possible implementation manner of the first aspect, or the second possible implementation manner, in a third possible implementation manner of the first aspect, the wireless access device is a base station, where The base station further includes a first receiver, where the processor is configured to control the wireless access device to obtain an MBMS synchronization identifier, including:

所述处理器用于与所述第一接收器通信，以使：所述基站接收核心网络设备发送的第一配置消息，所述第一配置消息中包含所述MBMS同步标识。The processor is configured to communicate with the first receiver, so that: the base station receives a first configuration message sent by a core network device, where the first configuration message includes the MBMS synchronization flag knowledge.

结合第一方面的第三种可能的实现方式，在第一方面的第四种可能的实现方式中，所述第一配置消息为MBMS调度信息消息；其中，With reference to the third possible implementation of the first aspect, in a fourth possible implementation manner of the first aspect, the first configuration message is an MBMS scheduling information message, where

当所述MBMS同步标识为第二MA标识，且所述第一小区不属于所述第二MA时，所述第二MA标识为所述MBMS调度信息消息中已有的第一MA标识之外，新增的用于生成MBMS同步信号的标识；When the MBMS synchronization identifier is the second MA identifier, and the first cell does not belong to the second MA, the second MA identifier is other than the first MA identifier that is already in the MBMS scheduling information message. , an added identifier for generating an MBMS synchronization signal;

当所述MBMS同步标识为第二MA标识，且所述第一小区同属于所述第二MA时，所述MBMS调度信息消息中还包括：用于指示所述无线接入设备根据所述第二MA标识生成MBMS同步信号的信息。When the MBMS synchronization identifier is the second MA identifier, and the first cell belongs to the second MA, the MBMS scheduling information message further includes: indicating, by the wireless access device, according to the The second MA identifies information for generating an MBMS synchronization signal.

结合第一方面，第一方面的第一种至第四种可能的实现方式中的任意一种可能的实现方式，在第一方面的第五种可能的实现方式中，所述无线接入设备为MBMS广播设备，所述MBMS广播设备为部署用于MBMS传输的广播设备，所述MBMS广播设备包括第一存储器，所述第一存储器中存储了用于指示所述MBMS同步标识的代码；所述处理器用于控制所述无线接入设备获取MBMS同步标识，包括：With reference to the first aspect, any one of the first to the fourth possible implementation manners of the first aspect, in a fifth possible implementation manner of the first aspect, the wireless access device For an MBMS broadcast device, the MBMS broadcast device is a broadcast device deployed for MBMS transmission, the MBMS broadcast device includes a first memory, and a code for indicating the MBMS synchronization identifier is stored in the first memory; The processor is configured to control the wireless access device to obtain an MBMS synchronization identifier, including:

所述处理器用于读取所述第一存储器中的用于指示所述MBMS同步标识的代码。The processor is configured to read a code in the first memory for indicating the MBMS synchronization identifier.

结合第一方面，第一方面的第一种至第五种可能的实现方式中的任意一种可能的实现方式，在第一方面的第六种可能的实现方式中，所述无线接入设备包括：With reference to the first aspect, any one of the first to the fifth possible implementation manners of the first aspect, in a sixth possible implementation manner of the first aspect, the wireless access device include:

第二存储器，所述第二存储器中存储了用于指示所述预配置的无线资源的代码；和/或，a second memory, in the second memory, storing a code for indicating the pre-configured wireless resource; and/or,

第二接收器，用于接收核心网络设备发送的第二配置消息，所述第二配置消息用于初始化或更新所述预配置的无线资源； a second receiver, configured to receive a second configuration message sent by the core network device, where the second configuration message is used to initialize or update the pre-configured wireless resource;

其中，当所述无线接入设备为MBMS广播设备时，所述第二存储器与所述第一存储器相同或不同；当所述无线接入设备为基站时，所述第二接收器与所述第一接收器相同或不同。Wherein, when the wireless access device is an MBMS broadcast device, the second memory is the same as or different from the first memory; when the wireless access device is a base station, the second receiver is The first receivers are the same or different.

结合第一方面，第一方面的第一种至第六种可能的实现方式中的任意一种可能的实现方式，在第一方面的第七种可能的实现方式中，With reference to the first aspect, any one of the possible implementation manners of the first to the sixth possible implementation manners of the first aspect, in the seventh possible implementation manner of the first aspect,

所述预配置的无线资源由通信协议规定，所述预配置的无线资源的帧结构，与用于单播传输的无线资源的帧结构不同。The pre-configured radio resource is specified by a communication protocol, and a frame structure of the pre-configured radio resource is different from a frame structure of a radio resource used for unicast transmission.

第二方面，提供了一种支持多媒体广播多播业务MBMS传输的核心网络设备，所述核心网络设备分别与第一无线接入设备，第二无线接入设备连接，所述第一无线接入设备管理第一小区，所述第二无线接入设备管理第二小区，所述第一小区属于第一MBMS单频网络区域MA，所述第二小区属于第二MA，所述第一MA与所述第二MA不同，所述核心网络设备包括：A second aspect provides a core network device that supports MBMS transmission of a multimedia broadcast multicast service, where the core network device is respectively connected to a first wireless access device and a second wireless access device, where the first wireless access The device manages the first cell, and the second radio access device manages the second cell, where the first cell belongs to the first MBMS single frequency network area MA, the second cell belongs to the second MA, and the first MA The second MA is different, and the core network device includes:

有线接口，发送器，以及处理器；其中，所述处理器用于与所述发送器和所述有线接口通信，以使所述核心网络设备：a wired interface, a transmitter, and a processor; wherein the processor is configured to communicate with the transmitter and the wired interface to cause the core network device to:

向所述第一无线接入设备发送第一MBMS同步标识；向所述第二无线接入设备发送第二MBMS同步标识；其中，所述第一MBMS同步标识和所述第二MBMS同步标识为相同的MBMS同步标识，所述MBMS同步标识用于生成MBMS同步信号。Sending a first MBMS synchronization identifier to the first radio access device; and sending a second MBMS synchronization identifier to the second radio access device; wherein the first MBMS synchronization identifier and the second MBMS synchronization identifier are The same MBMS synchronization identifier is used to generate an MBMS synchronization signal.

结合第二方面，在第二方面的第一种可能的实现方式中，所述处理器用于与所述发送器和所述有线接口通信，以使所述核心网络设备：In conjunction with the second aspect, in a first possible implementation of the second aspect, the processor is configured to communicate with the transmitter and the wired interface, so that the core network device:

在所述第一小区同属于所述第二MA，且所述第二MA包含的小区的数目多于或等于所述第一MA时；或者，在所述第一小区同属于所述第二 MA，且所述第二小区覆盖的地理区域大于或等于所述第一小区时；When the first cell belongs to the second MA, and the number of cells included by the second MA is greater than or equal to the first MA; or, the first cell belongs to the second a MA, and the geographical area covered by the second cell is greater than or equal to the first cell;

确定所述第二MA为主MA，所述主MA的标识作为所述MBMS同步标识。Determining that the second MA is a primary MA, and the identifier of the primary MA is used as the MBMS synchronization identifier.

结合第二方面，在第二方面的第二种可能的实现方式中，所述MBMS同步标识为第二MA标识；并且，所述第一小区不属于所述第二MA。With reference to the second aspect, in a second possible implementation manner of the second aspect, the MBMS synchronization identifier is a second MA identifier; and, the first cell does not belong to the second MA.

结合第二方面、第二方面的第一种可能的实现方式、或第二种可能的实现方式，在第二方面的第三种可能的实现方式中，所述核心网络设备为多播协调实体，所述第一MBMS同步标识通过MBMS调度信息消息发送；其中，当所述第一小区不属于所述第二MA时，所述第二MA标识为所述MBMS调度信息消息中已有的第一MA标识之外，新增的用于生成MBMS同步信号的标识；当所述第一小区同属于所述第二MA时，所述MBMS调度信息消息中还包括：用于指示所述无线接入设备根据所述第二MA标识生成MBMS同步信号的信息。With reference to the second aspect, the first possible implementation manner of the second aspect, or the second possible implementation manner, in a third possible implementation manner of the second aspect, the core network device is a multicast coordination entity The first MBMS synchronization identifier is sent by using an MBMS scheduling information message, where the second MA identifier is an existing one of the MBMS scheduling information messages when the first cell does not belong to the second MA. An identifier for generating an MBMS synchronization signal, in addition to an MA identifier, where the first cell belongs to the second MA, the MBMS scheduling information message further includes: The ingress device generates information of the MBMS synchronization signal according to the second MA identifier.

结合第二方面，以及第二方面的第一种可能的实现方式至第三种可能的实现方式中的任意一种可能的实现方式，在第二方面的第四种可能的实现方式中，所述处理器用于与所述发送器和所述有线接口通信，以使所述核心网络设备：向所述第一无线接入设备和所述第二无线接入设备发送指示信息，以使所述第一无线接入设备和所述第二无线接入设备为所述MBMS同步信号配置相同的无线资源。With reference to the second aspect, and any one of the first possible implementation manners of the second aspect to the third possible implementation manner, in a fourth possible implementation manner of the second aspect, The processor is configured to communicate with the transmitter and the wired interface to cause the core network device to: send indication information to the first wireless access device and the second wireless access device, to enable the The first wireless access device and the second wireless access device configure the same wireless resource for the MBMS synchronization signal.

第三方面，还提供了一种通信***，所述通信***包括：如上述第一方面及各种可能实现方式中任一提供的无线接入设备，以及如上第二方面及各种可能实现方式中任一提供的核心网络设备。 In a third aspect, a communication system is provided, the communication system comprising: the wireless access device as provided in any of the first aspect and various possible implementations, and the second aspect and various possible implementations above The core network device provided by either.

第四方面，还提供了一种通信***，所述通信***支持多媒体广播多播业务MBMS传输，所述通信***包括第一无线接入设备和第二无线接入设备，所述第一无线接入设备管理第一小区，所述第二无线接入设备管理第二小区，所述第一小区属于第一MBMS单频网络区域MA，所述第二小区属于第二MA，所述第一MA与所述第二MA不同，第一无线接入设备用于：获取第一MBMS同步标识；根据所述第一MBMS同步标识生成第一MBMS同步信号；基于预配置的第一无线资源，广播所述第一MBMS同步信号；第二无线接入设备用于：获取第二MBMS同步标识；根据所述第二MBMS同步标识生成第二MBMS同步信号；基于预配置的第二无线资源，广播所述第二MBMS同步信号；In a fourth aspect, a communication system is also provided, the communication system supporting MBMS transmission of a multimedia broadcast multicast service, the communication system comprising a first wireless access device and a second wireless access device, the first wireless connection The ingress device manages the first cell, and the second radio access device manages the second cell, where the first cell belongs to the first MBMS single frequency network area MA, the second cell belongs to the second MA, and the first MA Different from the second MA, the first radio access device is configured to: acquire a first MBMS synchronization identifier; generate a first MBMS synchronization signal according to the first MBMS synchronization identifier; and based on the pre-configured first radio resource, a broadcast station Decoding a first MBMS synchronization signal; the second radio access device is configured to: acquire a second MBMS synchronization identifier; generate a second MBMS synchronization signal according to the second MBMS synchronization identifier; and broadcast the radio resource according to the pre-configured second radio resource a second MBMS synchronization signal;

其中，所述第一MBMS同步标识和所述第二MBMS同步标识为相同的MBMS同步标识，所述预配置的第一无线资源和所述预配置的第二无线资源为相同的无线资源。The first MBMS synchronization identifier and the second MBMS synchronization identifier are the same MBMS synchronization identifier, and the pre-configured first radio resource and the pre-configured second radio resource are the same radio resource.

结合第四方面，在第四方面的第一种可能的实现方式中，所述通信***还包括：In conjunction with the fourth aspect, in a first possible implementation manner of the fourth aspect, the communications system further includes:

分别与所述第一无线接入设备、所述第二无线接入设备连接的核心网络设备，用于：向所述第一无线接入设备发送所述第一MBMS同步标识；向所述第二无线接入设备发送所述第二MBMS同步标识。a core network device that is connected to the first wireless access device and the second wireless access device, respectively, configured to: send the first MBMS synchronization identifier to the first wireless access device; The second wireless access device sends the second MBMS synchronization identifier.

结合第四方面的第一种可能的实现方式，在第四方面的第二种可能的实现方式中，所述MBMS同步标识为第二MA标识；并且，所述第一小区不属于所述第二MA。With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the MBMS synchronization identifier is a second MA identifier, and the first cell does not belong to the first Two MA.

结合第四方面的第一种可能的实现方式，在第四方面的第三种可能的实现方式中，所述核心网络设备用于： In conjunction with the first possible implementation of the fourth aspect, in a third possible implementation of the fourth aspect, the core network device is configured to:

在所述第二MA包含的小区的数目多于或等于所述第一MA时；或者，在所述第二小区覆盖的地理区域大于或等于所述第一小区时；When the number of cells included in the second MA is greater than or equal to the first MA; or when the geographical area covered by the second cell is greater than or equal to the first cell;

结合第四方面，以及第一种至第三种可能的实现方式中的任意一种可能的实现方式，在第四方面的第四种可能的实现方式中，所述核心网络设备为多播协调实体，所述第一MBMS同步标识通过MBMS调度信息消息发送；With reference to the fourth aspect, and any one of the first to the third possible implementation manners, in a fourth possible implementation manner of the fourth aspect, the core network device is a multicast coordinated Entity, the first MBMS synchronization identifier is sent by using an MBMS scheduling information message;

其中，当所述第一小区不属于所述第二MA时，所述第二MA标识为所述MBMS调度信息消息中已有的第一MA标识之外，新增的用于生成MBMS同步信号的标识；When the first cell does not belong to the second MA, the second MA identifier is used to generate an MBMS synchronization signal, except for the first MA identifier that is already in the MBMS scheduling information message. Identification

当所述第一小区同属于所述第二MA时，所述MBMS调度信息消息中还包括：用于指示所述无线接入设备根据所述第二MA标识生成MBMS同步信号的信息。When the first cell belongs to the second MA, the MBMS scheduling information message further includes: information used to instruct the wireless access device to generate an MBMS synchronization signal according to the second MA identifier.

结合第四方面，以及第一种至第四种可能的实现方式中的任意一种可能的实现方式，在第四方面的第五种可能的实现方式中，所述核心网络设备用于：With reference to the fourth aspect, and any one of the first to the fourth possible implementation manners, in a fifth possible implementation manner of the fourth aspect, the core network device is used to:

向所述第一无线接入设备和所述第二无线接入设备发送指示信息，以使所述第一无线接入设备和所述第二无线接入设备为所述MBMS同步信号配置相同的无线资源。Sending indication information to the first wireless access device and the second wireless access device, so that the first wireless access device and the second wireless access device configure the same for the MBMS synchronization signal Wireless resources.

第五方面，还提供了一种支持多媒体广播多播业务(MBMS)传输的方法，包括：In a fifth aspect, a method for supporting Multimedia Broadcast Multicast Service (MBMS) transmission is also provided, including:

无线接入设备获取MBMS同步标识，所述无线接入设备管理第一小区，所述第一小区属于第一MBMS单频网络区域MA；The wireless access device acquires an MBMS synchronization identifier, and the wireless access device manages the first cell, The first cell belongs to the first MBMS single frequency network area MA;

所述无线接入设备根据所述MBMS同步标识，生成MBMS同步信号；Generating, by the wireless access device, an MBMS synchronization signal according to the MBMS synchronization identifier;

所述无线接入设备基于预配置的无线资源，广播所述MBMS同步信号；The wireless access device broadcasts the MBMS synchronization signal based on a pre-configured wireless resource;

其中，所述MBMS同步标识，所述预配置的无线资源也适用于第二小区，所述第二小区属于第二MA，所述第一MA与所述第二MA不同。The MBMS synchronization identifier, the pre-configured radio resource is also applicable to the second cell, the second cell belongs to the second MA, and the first MA is different from the second MA.

结合第五方面，在第五方面的第一种可能的实现方式中，所述MBMS同步标识为第二MA标识，所述第一小区同属于所述第二MA；其中，With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, the MBMS synchronization identifier is a second MA identifier, and the first cell belongs to the second MA;

结合第五方面，在第五方面的第二种可能的实现方式中，所述MBMS同步标识为第二MA标识，所述第一小区不属于所述第二MA。With reference to the fifth aspect, in a second possible implementation manner of the fifth aspect, the MBMS synchronization identifier is a second MA identifier, and the first cell does not belong to the second MA.

结合第五方面、第五方面的第一种可能的实现方式或第二种可能的实现方式，在第五方面的第三种可能的实现方式中，所述无线接入设备为基站，则所述无线接入设备获取MBMS同步标识，包括：With reference to the fifth aspect, the first possible implementation manner of the fifth aspect, or the second possible implementation manner, in a third possible implementation manner of the fifth aspect, the wireless access device is a base station, The wireless access device obtains the MBMS synchronization identifier, including:

所述基站接收核心网络设备发送的第一配置消息，所述第一配置消息中包含所述MBMS同步标识。The base station receives a first configuration message sent by the core network device, where the first configuration message includes the MBMS synchronization identifier.

结合第五方面的第三种可能的实现方式，在第五方面的第四种可能的实现方式中，所述第一配置消息为MBMS调度信息消息；其中，With reference to the third possible implementation manner of the fifth aspect, in a fourth possible implementation manner of the fifth aspect, the first configuration message is an MBMS scheduling information message, where

当所述MBMS同步标识为第二MA标识，且所述第一小区同属于所述第二MA时，所述MBMS调度信息消息中还包括：用于指示所述无线接入设备根据所述第二MA标识生成MBMS同步信号的信息。When the MBMS synchronization identifier is a second MA identifier, and the first cell belongs to the same In the second MA, the MBMS scheduling information message further includes: information used to instruct the wireless access device to generate an MBMS synchronization signal according to the second MA identifier.

结合第五方面、第五方面的第一种可能的实现方式或第二种可能的实现方式，在第五方面的第五种可能的实现方式中，所述无线接入设备为MBMS广播设备，所述MBMS广播设备为部署用于MBMS传输的广播设备，所述MBMS广播设备中存储了用于指示所述MBMS同步标识的代码；则所述无线接入设备获取所述MBMS同步标识，包括：With reference to the fifth aspect, the first possible implementation manner of the fifth aspect, or the second possible implementation manner, in a fifth possible implementation manner of the fifth aspect, the wireless access device is an MBMS broadcast device, The MBMS broadcast device is a broadcast device for deploying an MBMS, and the MBMS broadcast device stores a code for indicating the MBMS synchronization identifier.

所述MBMS广播设备读取内部存储的用于指示所述MBMS同步标识的代码。The MBMS broadcast device reads an internally stored code indicating the MBMS synchronization identity.

结合第五方面以及第五方面的第一种至第五中可能的实现方式中的任意一种实现方式，在第五方面的第六中可能的实现方式中，所述方法还包括：所述MBMS广播设备读取内部存储的用于指示所述预配置的无线资源的代码；和/或，接收核心网络设备发送的第二配置消息，所述第二配置消息用于初始化或更新所述预配置的无线资源。With reference to the fifth aspect, and any one of the first to fifth possible implementation manners of the fifth aspect, in a sixth possible implementation manner of the fifth aspect, the method further includes: The MBMS broadcast device reads an internally stored code for indicating the pre-configured wireless resource; and/or receives a second configuration message sent by the core network device, the second configuration message being used to initialize or update the pre- Configured wireless resources.

第六方面，还提供了一种支持多媒体广播多播业务MBMS传输的方法，所述方法适用于核心网络设备，所述核心网络设备分别与第一无线接入设备，第二无线接入设备连接，所述第一无线接入设备管理第一小区，所述第二无线接入设备管理第二小区，所述第一小区属于第一MBMS单频网络区域MA，所述第二小区属于第二MA，所述第一MA与所述第二MA不同，所述方法包括：向所述第一无线接入设备发送第一MBMS同步标识；向所述第二无线接入设备发送第二MBMS同步标识；其中，所述第一MBMS同步标识和所述第二MBMS同步标识为相同的MBMS同步标识，所述MBMS同步标识用于生成MBMS同步信号。 The sixth aspect, further provides a method for supporting MBMS transmission of a multimedia broadcast multicast service, where the method is applicable to a core network device, where the core network device is respectively connected to a first wireless access device and a second wireless access device. The first radio access device manages a first cell, and the second radio access device manages a second cell, where the first cell belongs to a first MBMS single frequency network area MA, and the second cell belongs to a second MA: The first MA is different from the second MA, the method includes: sending a first MBMS synchronization identifier to the first wireless access device; and sending a second MBMS synchronization to the second wireless access device And the first MBMS synchronization identifier and the second MBMS synchronization identifier are the same MBMS synchronization identifier, and the MBMS synchronization identifier is used to generate an MBMS synchronization signal.

结合第六方面，在第六方面的第一种可能的实现方式中，所述方法还包括：所述核心网络设备在所述第一小区同属于所述第二MA，且所述第二MA包含的小区的数目多于或等于所述第一MA时；或者，在所述第一小区同属于所述第二MA，且所述第二小区覆盖的地理区域大于或等于所述第一小区时；确定所述第二MA为主MA，所述主MA的标识作为所述MBMS同步标识。With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the method further includes: the core network device belongs to the second MA in the first cell, and the second MA When the number of the included cells is greater than or equal to the first MA; or, the first cell belongs to the second MA, and the geographical area covered by the second cell is greater than or equal to the first cell Determining that the second MA is the primary MA, and the identifier of the primary MA is used as the MBMS synchronization identifier.

结合第六方面，在第六方面的第二种可能的实现方式中，所述MBMS同步标识为第二MA标识；并且，所述第一小区不属于所述第二MA。With reference to the sixth aspect, in a second possible implementation manner of the sixth aspect, the MBMS synchronization identifier is a second MA identifier; and the first cell does not belong to the second MA.

结合第六方面、第六方面的第一种可能的实现方式、或第六种可能的实现方式，在第六方面的第三种可能的实现方式中，所述核心网络设备为多播协调实体，所述第一MBMS同步标识通过MBMS调度信息消息发送；其中，当所述第一小区不属于所述第二MA时，所述第二MA标识为所述MBMS调度信息消息中已有的第一MA标识之外，新增的用于生成MBMS同步信号的标识；当所述第一小区同属于所述第二MA时，所述MBMS调度信息消息中还包括：用于指示所述无线接入设备根据所述第二MA标识生成MBMS同步信号的信息。With reference to the sixth aspect, the first possible implementation manner of the sixth aspect, or the sixth possible implementation manner, in a third possible implementation manner of the sixth aspect, the core network device is a multicast coordination entity The first MBMS synchronization identifier is sent by using an MBMS scheduling information message, where the second MA identifier is an existing one of the MBMS scheduling information messages when the first cell does not belong to the second MA. An identifier for generating an MBMS synchronization signal, in addition to an MA identifier, where the first cell belongs to the second MA, the MBMS scheduling information message further includes: The ingress device generates information of the MBMS synchronization signal according to the second MA identifier.

结合第六方面，以及第六方面的第一种可能的实现方式至第三种可能的实现方式中的任意一种可能的实现方式，在第二方面的第四种可能的实现方式中，所述核心网络设备向所述第一无线接入设备和所述第二无线接入设备发送指示信息，以使所述第一无线接入设备和所述第二无线接入设备为所述MBMS同步信号配置相同的无线资源。With reference to the sixth aspect, and any one of the first possible implementation manners of the sixth aspect to the third possible implementation manner, in a fourth possible implementation manner of the second aspect, The core network device sends indication information to the first wireless access device and the second wireless access device, so that the first wireless access device and the second wireless access device are synchronized by the MBMS The signal is configured with the same radio resources.

第七方面，还提供了一种支持多媒体广播多播业务MBMS传输的用户设备，其特征在于，所述用户设备包括：In a seventh aspect, a user supporting MBMS transmission of a multimedia broadcast multicast service is also provided The device, wherein the user equipment includes:

存储器，接收器，以及分别与所述存储器和所述接收器连接的处理器；其中，所述存储器存储了用于指示MBMS同步信号的代码，以及用于指示MBMS同步信号占用的无线资源的代码，所述处理器用于与所述存储器和所述接收器通信，以使所述用户设备：a memory, a receiver, and a processor respectively coupled to the memory and the receiver; wherein the memory stores a code for indicating an MBMS synchronization signal, and a code for indicating a radio resource occupied by the MBMS synchronization signal The processor is configured to communicate with the memory and the receiver to cause the user equipment to:

基于所述MBMS同步信道，搜索所述MBMS同步信号；解析所述MBMS同步信号，以获得所述MBMS同步信号承载的MBMS同步标识，其中，所述MBMS同步标识为MBMS单频网络区域MA的标识。Searching for the MBMS synchronization signal based on the MBMS synchronization channel; parsing the MBMS synchronization signal to obtain an MBMS synchronization identifier carried by the MBMS synchronization signal, where the MBMS synchronization identifier is an identifier of an MBMS single frequency network area MA .

结合上述第一方面至第七方面及各种可能的实现方式中的任意一种实现方式，所述MBMS同步信号与支持单播传输的同步信号具有相同的结构，但不同的取值；或者，In combination with any one of the foregoing first to seventh aspects and various possible implementation manners, the MBMS synchronization signal has the same structure as the synchronization signal supporting unicast transmission, but has different values; or

所述MBMS同步信号占用的无线资源的帧结构，不同于支持单播传输的同步信号占用的无线资源的帧结构。The frame structure of the radio resource occupied by the MBMS synchronization signal is different from the frame structure of the radio resource occupied by the synchronization signal supporting the unicast transmission.

第八方面，还提供了一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序代码，所述计算机程序代码被处理器或处理单元执行时，可以使无线接入设备执行如上第五方面及各种可能实现方式中任意一种实现方式提供的方法，或者使核心网络设备执行如上第六方面及各种可能实现方式中任意一种实现方式提供的方法。In an eighth aspect, a computer readable storage medium is stored, the computer readable storage medium storing computer program code, when executed by a processor or a processing unit, enabling the wireless access device to perform the above The fifth aspect and the method provided by any one of the various possible implementation manners, or the core network device is configured to perform the method provided by any one of the foregoing sixth aspect and various possible implementation manners.

需要说明的是，针对第五方面及各种可能实现方式中任意一种实现方式提供的方法，或者第六方面及各种可能实现方式中任意一种实现方式提供的方法，还可以提供基于硬件模块或软件模块或软硬件结合模块的实现方式。例如，将其中的发送器替换为发送模块或发送单元，接收器替换为接收模块或接收单元，处理器替换为处理模块或处理单元，存储器替换为存储模块或存储单元。It should be noted that the method provided by the fifth aspect and any one of the possible implementation manners, or the method provided by any one of the sixth aspect and various possible implementation manners, may also provide hardware-based The implementation of a module or software module or a combination of hardware and software. For example, replacing the transmitter therein with a transmitting module or a transmitting unit, replacing the receiver with a receiving module or a receiving unit, replacing the processor with a processing module or a processing unit, and replacing the memory with Storage module or storage unit.

采用本发明实施例如上述各方面介绍的提供的技术方案，与现有的MBSFN传输相比，在实际部署中更加方便，可以实现多MA协作传输相同的MBMS同步信号，既能够提升同步信号的覆盖范围，也能够节省传输资源。在一些可选的实施方式中，当MBMS标识为第二MA标识时，对于第二MA内的小区而言，***消息中无需再传输第二MA标识，可以进一步节省资源开销。在另一些可选实施方式中，通过配置消息传递MBMS同步标识，初始化或更新所述预配置的无线资源，更加灵活方便，但需要占用一定的网络资源。比较来说，在其他一些可选实施方式中，通过协议预先约定，或内置存储器预先配置MBMS同步标识和无线资源，则可以节省一定的网络资源，但是如果需要改变配置，则相对繁琐。The technical solution provided by the implementation of the present invention, as described in the foregoing aspects, is more convenient in actual deployment than the existing MBSFN transmission, and can realize multi-MA cooperative transmission of the same MBMS synchronization signal, which can improve the coverage of the synchronization signal. The scope also saves transmission resources. In some optional implementation manners, when the MBMS identifier is the second MA identifier, the second MA identifier is not required to be transmitted in the system message for the cell in the second MA, which may further save resource overhead. In another optional implementation manner, the pre-configured radio resource is initialized or updated by configuring the message delivery MBMS synchronization identifier, which is more flexible and convenient, but needs to occupy certain network resources. In comparison, in some other optional implementation manners, the MBMS synchronization identifier and the radio resource are pre-configured by the protocol, or the built-in memory pre-configures the MBMS synchronization identifier and the radio resource, but a certain network resource can be saved, but if the configuration needs to be changed, it is relatively cumbersome.

附图说明DRAWINGS

图1为现有技术中移动通信网络的部署示意图；1 is a schematic diagram of deployment of a mobile communication network in the prior art;

图2为现有技术中MBMS应用的示意图；2 is a schematic diagram of an MBMS application in the prior art;

图3为适用于本发明实施例的一种支持MBMS传输的网络架构示意图；3 is a schematic diagram of a network architecture supporting MBMS transmission applicable to an embodiment of the present invention;

图4为本发明实施例中提供的一种支持MBMS传输的通信***的示意图；4 is a schematic diagram of a communication system supporting MBMS transmission according to an embodiment of the present invention;

图5为本发明实施例中提供的一种支持MBMS传输的无线接入设备的示意图；FIG. 5 is a schematic diagram of a wireless access device supporting MBMS transmission according to an embodiment of the present disclosure;

图6为本发明实施例中提供的一种支持MBMS传输的核心网络设备的示意图；FIG. 6 is a schematic diagram of a core network device supporting MBMS transmission according to an embodiment of the present disclosure;

图7为本发明实施例中提供的一种支持MBMS传输的方法示意图。 FIG. 7 is a schematic diagram of a method for supporting MBMS transmission according to an embodiment of the present invention.

具体实施方式detailed description

下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、详细地描述。显然，所描述的实施例是本发明的一部分实施例，而不是全部实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都应属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and in detail described below in conjunction with the accompanying drawings in the embodiments of the present invention. It is apparent that the described embodiments are part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of the present invention.

应理解，本发明实施例的技术方案可以应用于各种通信***，例如：通用移动通信***(universal mobile telecommunication system，简称：UMTS)、长期演进(long term evolution，简称：LTE)***、先进的长期演进(long term evolution advanced，简称：LTE-A)***，以及未来的演进***。在本申请中，术语“网络”和“***”可以相互替换。It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, such as a universal mobile telecommunication system (UMTS), a long term evolution (LTE) system, and an advanced system. Long term evolution advanced (LTE-A) system, and future evolution system. In the present application, the terms "network" and "system" are interchangeable.

还应理解，在本发明实施例中，用户设备可称之为终端(Terminal)、移动台(Mobile Station，简称：MS)或移动终端(Mobile Terminal)等。该用户设备可以经无线接入网络(radio access network，简称：RAN)与一个或多个核心网络(core network，简称：CN)进行通信。例如，用户设备可以是移动电话(或称为“蜂窝”电话)、便携式计算机、平板电脑等，还可以是物联网设备如车载的通信模块等。无线接入网络由无线接入设备组成，无线接入设备通常指基站，也可以指其他的用于提供无线接入服务的其他接入网设备。例如，在UMTS***中，基站可以称为节点B(Node B，简称：NodeB或者NB)。在LTE或LTE-A***中，基站可以称为演进的节点B(evolved Node B，简称：eNodeB或者eNB)。核心网络由多个核心网络设备组成，核心网络设备负责对用户设备的全面控制和相关承载的建立。例如，在LTE或LTE-A***中，核心网络设备包括：移动性管理实体(mobility management entity，简称：MME)、公共数据网络网关(public data network gateway，简称：PDN GW或P-GW)等，服务网关(serving gateway，简称：S-GW)。 It should also be understood that in the embodiment of the present invention, the user equipment may be referred to as a terminal, a mobile station (Mobile Station, MS: Mobile Terminal), or the like. The user equipment can communicate with one or more core networks (CNs) via a radio access network (RAN). For example, the user equipment may be a mobile phone (or "cellular" phone), a portable computer, a tablet computer, etc., and may also be an Internet of Things device such as a vehicle communication module or the like. A radio access network is composed of a radio access device, and the radio access device generally refers to a base station, and may also refer to other access network devices for providing radio access services. For example, in a UMTS system, a base station may be referred to as a Node B (Node B, abbreviated as: NodeB or NB). In an LTE or LTE-A system, a base station may be referred to as an evolved Node B (abbreviated as: eNodeB or eNB). The core network is composed of multiple core network devices, which are responsible for the overall control of the user equipment and the establishment of related bearers. For example, in an LTE or LTE-A system, a core network device includes: a mobility management entity (MME), a public data network gateway (PDN GW or P-GW), and the like. , service gateway (serving gateway, referred to as: S-GW).

图3为适用于本发明实施例的一种支持MBMS传输的网络架构示意图。如图3所示，该网络架构300包括用户设备(301,302)，接入网络设备(311,312,313)和核心网络设备(320,330,340)。应理解，图3中仅出于示意目的列举上述设备，在实际部署中，并不限于图3形式，上述设备的类型和数目都可以适应性地增加或减少，例如，增加其他必备的核心网络设备。以下，本申请将以LTE***为例，介绍本发明的各个实施例。FIG. 3 is a schematic diagram of a network architecture supporting MBMS transmission applicable to an embodiment of the present invention. As shown in FIG. 3, the network architecture 300 includes user equipment (301, 302), access network equipment (311, 312, 313), and core network equipment (320, 330, 340). It should be understood that the foregoing device is listed in FIG. 3 for illustrative purposes only. In actual deployment, it is not limited to the form of FIG. 3, and the types and numbers of the foregoing devices may be adaptively increased or decreased, for example, adding other necessary cores. Internet equipment. Hereinafter, the present application will introduce various embodiments of the present invention by taking an LTE system as an example.

在LTE***中，这些接入网络设备均为基站，具体为eNB。核心网络设备320为MME，核心网络设备330为多小区/多播协调实体(multi-cell/multicast coordination entity，简称：MCE)，核心网络设备340为MBMS网关(简称：MBMS-GW)。为表述方便，本申请中多小区/多播协调实体简称为多播协调实体或MCE。需要说明的是，MCE为逻辑实体，在实际部署中，可以作为一个独立的设备存在，也可以和其他设备合并部署，例如集成到基站或其他核心网络设备中。In an LTE system, these access network devices are all base stations, specifically eNBs. The core network device 320 is an MME, the core network device 330 is a multi-cell/multicast coordination entity (MCE), and the core network device 340 is an MBMS gateway (abbreviation: MBMS-GW). For convenience of presentation, the multi-cell/multicast coordination entity in this application is simply referred to as a multicast coordination entity or an MCE. It should be noted that the MCE is a logical entity. In actual deployment, the MCE can exist as a standalone device or be deployed in combination with other devices, for example, integrated into a base station or other core network devices.

为了支持MBMS传输，特别是MBSFN传输，MCE的功能主要包括：接收并传递MBMS会话控制信令(session control signalling)至eNB，支持会话管理功能(如会话启动，会话停止等)，负责调度eNB管理小区的无线资源，保证单个MA内各小区的无线资源配置的一致性。MBMS-GW支持将MBMS业务数据转发至eNB，MBMS-GW可以与P-GW共部署。In order to support MBMS transmission, especially MBSFN transmission, the functions of the MCE mainly include: receiving and transmitting MBMS session control signalling to the eNB, supporting session management functions (such as session initiation, session stop, etc.), and scheduling eNB management. The radio resources of the cell ensure the consistency of the radio resource configuration of each cell in a single MA. The MBMS-GW supports forwarding MBMS service data to the eNB, and the MBMS-GW can be deployed together with the P-GW.

如图3所示，MBMS-GW与eNB之间的接口称为M1接口，为用户面接口，MBMS-GW通过IP组播的方式，向eNB发送MBMS业务数据。MCE与eNB之间的接口称为M2接口，为控制面接口，基于流控制传输协议(stream control transmission protocol,SCTP)传递M2接口信令，遵循M2接口协议规定。MCE与MME之间接口称为M3接口，为控制面接口，基于SCTP传递M3接口信令，遵循M3接口协议规定。As shown in FIG. 3, the interface between the MBMS-GW and the eNB is called an M1 interface, and is a user plane interface. The MBMS-GW sends MBMS service data to the eNB by means of IP multicast. The interface between the MCE and the eNB is called the M2 interface, and is the control plane interface. The M2 interface signaling is transmitted based on the stream control transmission protocol (SCTP), and the M2 interface protocol is followed. The interface between the MCE and the MME is called the M3 interface, which is the control plane interface. The MTP interface signaling is based on the SCTP and follows the M3 interface protocol.

结合图3，重新考虑如图2所示的MA部分重叠场景。假设一个基站管理一个小区，基站311管理的小区属于MA1，基站312管理的小区同属于 MA1和MA2，基站313管理的小区属于MA2。如背景技术所述，在这种MA配置情况下，现有技术并不适用。为了保证MA 2的覆盖，本发明实施例可以考虑针对MA2，另外配置同步信道，以保证MA2的覆盖。对于基站312管理的小区而言，由于同时属于MA1和MA2，则需要分别配置两套同步信道。这两套同步信道可以由基站312错开发送，但这会造成一定的资源浪费，对于处于MA边缘位置的UE而言，可能会受到相邻MA的更多干扰。并且，当存在多个MA部分重叠时，该方案将会更加复杂，可能并非最佳解决方案。Referring to Figure 3, the MA partial overlap scene as shown in Figure 2 is reconsidered. It is assumed that one base station manages one cell, the cell managed by the base station 311 belongs to MA1, and the cell managed by the base station 312 belongs to the same cell. MA1 and MA2, the cell managed by the base station 313 belongs to MA2. As described in the background, in the case of such an MA configuration, the prior art is not applicable. In order to ensure the coverage of the MA 2, the embodiment of the present invention may consider configuring a synchronization channel for the MA2 to ensure coverage of the MA2. For the cells managed by the base station 312, since they belong to MA1 and MA2 at the same time, two sets of synchronization channels need to be separately configured. The two sets of synchronization channels may be sent by the base station 312, but this may cause a certain waste of resources. For the UE at the edge of the MA, it may be more interfered by the neighboring MA. Moreover, when there are multiple MA parts overlapping, the scheme will be more complicated and may not be the best solution.

考虑到该方案的局限性，本发明实施例中还提供了另一种更优的解决方案。图4为本发明实施例中提供的一种支持MBMS传输的通信***的示意图。如图4所示，通信***400包括第一无线接入设备和第二无线接入设备。其中，第一无线接入设备管理第一小区，第二无线接入设备管理第二小区，第一小区属于第一MBMS单频网络区域MA，第二小区属于第二MA，所述第一MA与所述第二MA不同。In view of the limitations of the solution, another preferred solution is provided in the embodiments of the present invention. FIG. 4 is a schematic diagram of a communication system supporting MBMS transmission according to an embodiment of the present invention. As shown in FIG. 4, the communication system 400 includes a first wireless access device and a second wireless access device. The first radio access device manages the first cell, the second radio access device manages the second cell, the first cell belongs to the first MBMS single frequency network area MA, and the second cell belongs to the second MA, the first MA Different from the second MA.

具体地，所述第一无线接入设备用于：获取第一MBMS同步标识；根据所述第一MBMS同步标识生成第一MBMS同步信号；基于预配置的第一无线资源，广播所述第一MBMS同步信号。Specifically, the first radio access device is configured to: acquire a first MBMS synchronization identifier; generate a first MBMS synchronization signal according to the first MBMS synchronization identifier; and broadcast the first according to the pre-configured first radio resource. MBMS sync signal.

所述第二无线接入设备用于：获取第二MBMS同步标识；根据所述第二MBMS同步标识生成第二MBMS同步信号；基于预配置的第二无线资源，广播所述第二MBMS同步信号。The second radio access device is configured to: acquire a second MBMS synchronization identifier; generate a second MBMS synchronization signal according to the second MBMS synchronization identifier; and broadcast the second MBMS synchronization signal based on the pre-configured second radio resource .

并且，所述第一MBMS同步标识和所述第二MBMS同步标识为相同的MBMS同步标识，所述预配置的第一无线资源和所述预配置的第二无线资源为相同的无线资源。And the first MBMS synchronization identifier and the second MBMS synchronization identifier are the same MBMS synchronization identifier, and the pre-configured first radio resource and the pre-configured second radio resource are the same radio resource.

可选地，该通信***400还包括:分别与所述第一无线接入设备、所述第二无线接入设备连接的核心网络设备，用于：向所述第一无线接入设备发送所述第一MBMS同步标识；向所述第二无线接入设备发送所述第二MBMS同步标识。Optionally, the communication system 400 further includes: a core network device connected to the first wireless access device and the second wireless access device, respectively, configured to: go to the first wireless access device Sending the first MBMS synchronization identifier; and sending the second MBMS synchronization identifier to the second radio access device.

因此，第一无线接入设备和第二无线接入设备在相同的无线资源上，广播相同的MBMS同步信号。对于用户设备而言，属于不同MA的不同小区中传输的MBMS同步信号，相当于来自同一个小区的同步信号，既能够取得接收合并增益，也可以避免不同MA间传输不同的同步信号产生的干扰。因此，与现有的MBSFN传输相比，本发明实施例中的技术方案在实际部署中更加方便，可以实现多MA协作传输相同的MBMS同步信号，既能够提升同步信号的覆盖范围，也能够节省传输资源。Therefore, the first radio access device and the second radio access device broadcast the same MBMS synchronization signal on the same radio resource. For the user equipment, the MBMS synchronization signals transmitted in different cells belonging to different MAs are equivalent to the synchronization signals from the same cell, and can obtain the reception combining gain and the interference generated by different synchronization signals transmitted between different MAs. . Therefore, compared with the existing MBSFN transmission, the technical solution in the embodiment of the present invention is more convenient in actual deployment, and the multi-MA cooperative transmission of the same MBMS synchronization signal can be realized, which can improve the coverage of the synchronization signal and save the same. Transfer resources.

为了更详细地介绍上述通信***400，下面将结合图5进行说明无线接入设备。图5为本发明实施例中提供的一种支持MBMS传输的无线接入设备的示意图。该无线接入设备500，可以为图4所示的通信***400中第一无线接入设备或者第二无线接入设备。该无线接入设备500管理第一小区，所述第一小区属于第一MA。In order to introduce the above communication system 400 in more detail, a wireless access device will be described below with reference to FIG. FIG. 5 is a schematic diagram of a wireless access device supporting MBMS transmission according to an embodiment of the present invention. The wireless access device 500 can be the first wireless access device or the second wireless access device in the communication system 400 shown in FIG. The wireless access device 500 manages a first cell, and the first cell belongs to a first MA.

如图5所示，所述无线接入设备500包括通信接口510，发送器520和处理器530。其中，该通信接口510可以包括：无线接口和有线接口。其中，无线接口可以是指天线，也可以是指连接天线的逻辑或物理接口。此外，无线接入设备500还可以包括接收器540、存储器550等。存储器550可以包括只读存储器和随机存取存储器，并向处理器530提供指令和数据。处理器530控制无线接入设备500的操作，处理器530还可以称为中央处理单元(Central Processing Unit，简称：CPU)。具体的应用中，发射器520和接收器540可以耦合到通信接口510。无线接入设备500的各个组件通过总线***50耦合在一起，其中总线***50除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图中将各种总线都标为总线***50。 As shown in FIG. 5, the wireless access device 500 includes a communication interface 510, a transmitter 520, and a processor 530. The communication interface 510 can include: a wireless interface and a wired interface. The wireless interface may refer to an antenna or a logical or physical interface that connects the antennas. In addition, the wireless access device 500 may further include a receiver 540, a memory 550, and the like. Memory 550 can include read only memory and random access memory and provides instructions and data to processor 530. The processor 530 controls the operation of the wireless access device 500. The processor 530 may also be referred to as a central processing unit (CPU). In a particular application, transmitter 520 and receiver 540 can be coupled to communication interface 510. The various components of the wireless access device 500 are coupled together by a bus system 50, which may include, in addition to the data bus, a power bus, a control bus, a status signal bus, and the like. However, for clarity of description, various buses are labeled as bus system 50 in the figure.

在本发明实施例中，所述无线接入设备500，可以包括：In the embodiment of the present invention, the wireless access device 500 may include:

无线接口510，与所述无线接口510连接的发送器520，以及与所述发送器连接的处理器530。所述处理器530用于控制所述无线接入设备500：获取MBMS同步标识；根据所述MBMS同步标识生成MBMS同步信号；以及基于预配置的无线资源，广播所述MBMS同步信号。其中，所述MBMS同步标识，所述预配置的无线资源也适用于第二小区，所述第二小区属于第二MA，所述第一MA与所述第二MA不同。A wireless interface 510, a transmitter 520 coupled to the wireless interface 510, and a processor 530 coupled to the transmitter. The processor 530 is configured to control the wireless access device 500: acquire an MBMS synchronization identifier; generate an MBMS synchronization signal according to the MBMS synchronization identifier; and broadcast the MBMS synchronization signal based on a pre-configured wireless resource. The MBMS synchronization identifier, the pre-configured radio resource is also applicable to the second cell, the second cell belongs to the second MA, and the first MA is different from the second MA.

该第二小区可以由无线接入设备500之外的其他无线接入设备管理。在不考虑与当前LTE协议的兼容性时，第二小区也可以由无线接入设备500管理。The second cell may be managed by other wireless access devices than the wireless access device 500. The second cell may also be managed by the wireless access device 500 when compatibility with the current LTE protocol is not considered.

在实际部署中，该MBMS同步标识可以是为支持MBMS传输单独设计的同步标识。MBMS同步标识的个数可以有多个，每个同步标识唯一指示一个MBMS同步信号。MBMS同步信号的个数、序列类型、序列长度和序列取值，以及MBMS同步标识和MBMS同步信号的对应关系，可以由通信协议进行约定。无线接入设备收到一个MBMS同步标识后，即可根据该MBMS同步标识，唯一生成一个MBMS同步信号。类似地，所述预配置的无线资源，也可以由该通信协议进行约定。不难理解，通信协议约定的MBMS同步信号和无线资源中的至少一种，与目前LTE通信***中用于单播传输的同步信号和无线资源，应当有所区别，以便用户设备在没有先验信息的情况下，能够获知当前通信***支持MBMS传输。In actual deployment, the MBMS synchronization identifier may be a synchronization identifier designed separately to support MBMS transmission. There may be more than one MBMS synchronization identifier, and each synchronization identifier uniquely indicates one MBMS synchronization signal. The number of MBMS synchronization signals, the sequence type, the sequence length and the sequence value, and the correspondence between the MBMS synchronization identifier and the MBMS synchronization signal can be agreed by the communication protocol. After receiving the MBMS synchronization identifier, the wireless access device can generate an MBMS synchronization signal according to the MBMS synchronization identifier. Similarly, the pre-configured radio resources may also be contracted by the communication protocol. It is not difficult to understand that at least one of the MBMS synchronization signal and the radio resource stipulated by the communication protocol should be different from the synchronization signal and the radio resource used for unicast transmission in the current LTE communication system, so that the user equipment does not have a priori. In the case of information, it can be known that the current communication system supports MBMS transmission.

支持该通信协议的用户设备，可以在预配置的无线资源上，搜索广播的MBMS同步信号。例如，用户设备可以基于序列相关检测方法，使用通信协议预先约定的MBMS同步信号与接收到的信号作时域相关。当时域相关的峰值超过某个阈值时，即可确定接收到MBMS同步信号，并据此获得下行定时及MBMS同步标识。 The user equipment supporting the communication protocol can search for the broadcast MBMS synchronization signal on the pre-configured radio resource. For example, the user equipment may base time domain correlation with the received signal using the MBMS synchronization signal pre-agreed by the communication protocol based on the sequence correlation detection method. When the peak of the domain correlation exceeds a certain threshold, it can be determined that the MBMS synchronization signal is received, and the downlink timing and the MBMS synchronization identifier are obtained accordingly.

可选地，在一种可选实施方式中，该MBMS同步标识为第二MA标识，用户设备接收到MBMS同步信号后，即可获得第二MA标识。该第二MA标识指示的MA为第二MA。在目前的标准协议中，为了区分不同的MA，不同MA具有不同的标识，该标识称为MA标识(MBSFN area identity)。MA标识不能通过同步信号提供给用户设备，而是承载在***消息(system information)中，用户设备需要先同步，再接收***消息，然后获得MA标识。不同的MA内，该MA标识用于加扰MBMS业务数据，用户设备基于该MA标识可以进行解扰操作，以获得MBMS业务数据。因此，该MBMS同步标识为第二MA标识时，对于第二MA内的小区，如第二小区，而言，***消息中无需再传输第二MA标识，可以节省资源开销。针对第一小区，需要考虑第一小区与第二MA的归属关系。Optionally, in an optional implementation manner, the MBMS synchronization identifier is a second MA identifier, and after receiving the MBMS synchronization signal, the user equipment may obtain the second MA identifier. The MA indicated by the second MA identifier is the second MA. In the current standard protocol, in order to distinguish different MAs, different MAs have different identifiers, which are called MBSFN area identity. The MA identifier cannot be provided to the user equipment through the synchronization signal, but is carried in the system information. The user equipment needs to synchronize first, then receive the system message, and then obtain the MA identifier. The MA identifier is used to scramble MBMS service data in different MAs, and the user equipment can perform a descrambling operation based on the MA identifier to obtain MBMS service data. Therefore, when the MBMS synchronization identifier is the second MA identifier, for the cell in the second MA, such as the second cell, the second MA identifier is not required to be transmitted in the system message, which can save resource overhead. For the first cell, the attribution relationship between the first cell and the second MA needs to be considered.

一般来说，该第一小区不属于第二MA。此时，第一小区属于第一MA，可以获得第一MA标识。在本发明实施例中，第一小区仍然需要根据第二MA标识生成并传输MBMS同步信号，该MBMS同步信号携带的是第二MA标识。初看起来，对于第一小区自身而言似乎没有特别增益。但是考虑到不同MA间传输的是相同的MBMS同步信号，对于用户设备而言，避免不同MA间传输不同的同步信号产生的干扰，特别是当第一小区和第二小区(或者说第一MA和第二MA)相邻时，增益仍然客观。Generally, the first cell does not belong to the second MA. At this time, the first cell belongs to the first MA, and the first MA identifier can be obtained. In the embodiment of the present invention, the first cell still needs to generate and transmit an MBMS synchronization signal according to the second MA identifier, where the MBMS synchronization signal carries the second MA identifier. At first glance, there seems to be no particular gain for the first cell itself. However, considering that the same MBMS synchronization signal is transmitted between different MAs, for the user equipment, interference generated by transmitting different synchronization signals between different MAs is avoided, especially when the first cell and the second cell (or the first MA) When adjacent to the second MA), the gain is still objective.

当然，第一小区也可以同属于第二MA，即第一小区既属于第一MA，也属于第二MA。在图3所示实施例中已经考虑过该场景，在本发明实施例中，第一小区中无需配置两套同步信道。理论上，第一MA标识，和第二MA标识都可以用于生成MBMS同步信号。但是，在所述第一小区同属于所述第二MA，且所述第二MA包含的小区的数目多于或等于所述第一MA时；或者，在所述第一小区同属于所述第二MA，且所述第二小区覆盖的地理区域大于或等于所述第一小区时；指定第二MA标识生成MBMS同步信号，可以更好地改善覆盖，节省资源开销。这与背景技术中提及的方案的思路不同，某种程度上甚至可以认为截然相反。在那个方案中，对于MA重叠场景，建议利用多个较小MA的覆盖，完成较大的MA的覆盖。Of course, the first cell may also belong to the second MA, that is, the first cell belongs to both the first MA and the second MA. This scenario has been considered in the embodiment shown in FIG. 3. In the embodiment of the present invention, two sets of synchronization channels need not be configured in the first cell. In theory, both the first MA identity and the second MA identity can be used to generate an MBMS synchronization signal. However, when the first cell belongs to the second MA, and the number of cells included in the second MA is greater than or equal to the first MA; or, the first cell belongs to the same a second MA, where the geographical area covered by the second cell is greater than or equal to the first cell; and the second MA identifier is specified to generate an MBMS synchronization message. No. can better improve coverage and save resources. This is different from the idea of the solution mentioned in the background art, and to some extent it can be considered to be the opposite. In that solution, for the MA overlap scenario, it is recommended to use multiple smaller MA coverages to complete the coverage of the larger MA.

可选地，在一种可选实施方式中，所述无线接入设备500还包括：接收器540；所述处理器530用于控制所述无线接入设备500获取MBMS同步标识，包括：所述处理器530用于与所述接收器540通信，以使：所述无线接入设备500接收核心网络设备发送的配置消息，所述配置消息中包含所述MBMS同步标识。Optionally, in an optional implementation manner, the wireless access device 500 further includes: a receiver 540; the processor 530 is configured to control the wireless access device 500 to acquire an MBMS synchronization identifier, including: The processor 530 is configured to communicate with the receiver 540, so that: the wireless access device 500 receives a configuration message sent by a core network device, where the configuration message includes the MBMS synchronization identifier.

可选地，在另一种可选实施方式中，所述无线接入设备500还包括存储器550，所述存储器550中存储了用于指示所述MBMS同步标识的代码；所述处理器530用于控制所述无线接入设备500获取MBMS同步标识，包括：所述处理器530用于读取所述存储器550中的用于指示所述MBMS同步标识的代码。Optionally, in another optional implementation manner, the wireless access device 500 further includes a memory 550, where the code for indicating the MBMS synchronization identifier is stored in the memory 550; The controlling the wireless access device 500 to acquire the MBMS synchronization identifier includes: the processor 530 is configured to read a code in the memory 550 for indicating the MBMS synchronization identifier.

可选地，本发明实施例和各可选实施方式的基础上，上述无线接入设备500还可以包括：Optionally, based on the embodiment of the present invention and the optional implementation manners, the foregoing wireless access device 500 may further include:

存储器560，所述存储器560中存储了用于指示所述预配置的无线资源的代码；和/或，a memory 560 in which is stored a code for indicating the pre-configured wireless resource; and/or,

接收器570，用于接收核心网络设备发送的第二配置消息，所述第二配置消息用于初始化或更新所述预配置的无线资源。The receiver 570 is configured to receive a second configuration message sent by the core network device, where the second configuration message is used to initialize or update the pre-configured wireless resource.

其中，所述存储器560与存储器550可以是相同或不同的存储器；所述接收器570与所述接收器540可以是相同或不同的接收器。为了简洁，图5中没有再单独示出存储器560和接收器570。 The memory 560 and the memory 550 may be the same or different memories; the receiver 570 and the receiver 540 may be the same or different receivers. For the sake of brevity, the memory 560 and the receiver 570 are not separately shown in FIG.

实际部署中，无线接入设备500可以为基站，也可以是MBMS广播设备，所述MBMS广播设备为部署用于MBMS传输的广播设备。与基站相比，该MBMS广播设备可以理解为单独部署，专用于MBMS传输的广播设备。应理解，专用于MBMS传输不限定为该MBMS广播设备只能用于MBMS传输，该MBMS广播设备显然还可以具有其他功能，但支持MBMS传输是其主要功能。比较而言，基站除了支持MBMS传输外，还会用于支持单播传输，并且支持单播传输，对于基站而言可能更加重要。In an actual deployment, the wireless access device 500 may be a base station or an MBMS broadcast device, and the MBMS broadcast device is a broadcast device deployed for MBMS transmission. Compared to a base station, the MBMS broadcast device can be understood as a broadcast device dedicated to MBMS transmission, which is deployed separately. It should be understood that dedicated to MBMS transmission is not limited to the MBMS broadcast device being used only for MBMS transmission, and the MBMS broadcast device may obviously have other functions, but supporting MBMS transmission is its main function. In comparison, in addition to supporting MBMS transmission, the base station is also used to support unicast transmission and supports unicast transmission, which may be more important for the base station.

上述可选实施方式均适用于无线接入设备500为基站和MBMS广播设备的情形。当无线接入设备500为MBMS广播设备时，由于该MBMS广播设备为单独部署并专用于MBMS传输的广播设备，在设备出厂、初次安装或设备调试时，可以相对容易地内置该存储器550或560，或者，通过外部接口向MBMS传输的广播设备中的存储器550或560拷贝用于指示所述MBMS同步标识的代码。The above optional embodiments are all applicable to the case where the wireless access device 500 is a base station and an MBMS broadcast device. When the wireless access device 500 is an MBMS broadcast device, since the MBMS broadcast device is a broadcast device that is separately deployed and dedicated to MBMS transmission, the memory 550 or 560 can be relatively easily built in the device factory, initial installation, or device debugging. Alternatively, the memory 550 or 560 in the broadcast device transmitted to the MBMS through the external interface copies a code indicating the MBMS synchronization identifier.

在上述可选实施方式中，通过配置消息传递MBMS同步标识，初始化或更新所述预配置的无线资源，更加灵活方便，但需要占用一定的网络资源。比较来说，通过协议预先约定，或内置存储器预先配置MBMS同步标识和无线资源，则可以节省一定的网络资源，但是如果需要改变配置，则相对繁琐。In the foregoing optional implementation manner, the pre-configured radio resource is initialized or updated by configuring the message delivery MBMS synchronization identifier, which is more flexible and convenient, but needs to occupy a certain network resource. In comparison, pre-agreed by protocol, or built-in memory pre-configured MBMS synchronization identifier and radio resources, can save certain network resources, but it is relatively cumbersome if the configuration needs to be changed.

需要说明的是，该MBMS广播设备特别适用于基于MBMS技术的移动电视场景。现有的广播电视运营商或者移动通信运营商，将现有的电视频谱作为MBMS专用载波，单独部署MBMS广播设备，专门用于MBMS传输，以便向用户提供诸如移动电视业务等高速率的数据服务。这些MBMS广播设备，可以配置或集成支持MBMS传输的能力单元，优选地，采用大功率的射频单元和天线。因此，一个MBMS广播设备的覆盖范围可以远远大于目前LTE***中一个基站能够提供的覆盖范围。这样，覆盖一个城市所需的MBMS广播设备的数目，远远少于使用基站的数目。当然，MBMS广播设备也可以和基站混合组网。例如，由MBMS广播设备负责主要覆盖，MBMS广播设备覆盖区域的边缘，再配置基站实现覆盖。对于MBMS业务的热点区域，如学校，商业区，也可以配置基站进行覆盖，并提供容量增强。It should be noted that the MBMS broadcast device is particularly suitable for mobile TV scenarios based on MBMS technology. Existing broadcast TV operators or mobile communication operators use the existing TV spectrum as an MBMS dedicated carrier and separately deploy MBMS broadcast equipment, which is dedicated to MBMS transmission, in order to provide users with high-speed data services such as mobile TV services. . These MBMS broadcast devices can be configured or integrated with capability units that support MBMS transmission, preferably with high power radio units and antennas. Therefore, the coverage of an MBMS broadcast device can be much larger than the coverage that one base station can provide in current LTE systems. This way, covering a city The number of MBMS broadcast devices required is much less than the number of base stations used. Of course, the MBMS broadcast device can also be mixed with the base station. For example, the MBMS broadcast device is responsible for the primary coverage, and the MBMS broadcast device covers the edge of the area, and then the base station is configured to implement coverage. For hotspot areas of the MBMS service, such as schools and commercial areas, base stations can also be configured for coverage and capacity enhancement.

特别地，针对MBMS广播设备和基站混合组网的场景，图4所示实施例中提供的通信***400中，优选第一无线接入设备为基站，第二无线接入设备为MBMS广播设备。并且，考虑到使用MBMS专用载波场景下，现有蜂窝通信***中小区的概念可能会发生变化。本申请中的小区的概念可以进一步扩展，以适用于MBMS广播设备。Specifically, for the scenario of the hybrid networking of the MBMS broadcast device and the base station, in the communication system 400 provided in the embodiment shown in FIG. 4, preferably, the first wireless access device is a base station, and the second wireless access device is an MBMS broadcast device. Moreover, the concept of a cell in an existing cellular communication system may change in consideration of the use of an MBMS dedicated carrier scenario. The concept of a cell in the present application can be further extended to be applicable to an MBMS broadcast device.

以LTE为例，小区是无线接入网络的基本组成单位，是为用户设备提供接入服务的最小服务单位。每个小区具有一个身份证明(identification)，该身份证明也可以称为小区标识(Cell Identity)。该小区标识由无线接入网络的接入设备，如基站，在一定地理区域内广播。处于该地理区域内的用户设备可以基于该小区标识唯一识别该小区，并接入该小区，享受无线通信服务。通常，小区涉及两层含义，一是小区的覆盖区域(coverage area)，与广播小区标识的地理区域相关；二是小区的资源组合，与提供无线通信服务的频率资源相关。覆盖区域与广播小区标识的地理区域相关，但不完全相同，通常定义为达到某一服务要求的地理区域。小区的资源组合，与载波(carrier)相关，但不完全相同。载波通常定义为承载无线通信服务的数据或者控制信令的调制后的波形。一个小区可以有多个载波，一个载波也可以由多个小区共用。Taking LTE as an example, a cell is a basic component of a radio access network, and is a minimum service unit that provides access services for user equipment. Each cell has an identity, which may also be referred to as Cell Identity. The cell identity is broadcast by a access device of the radio access network, such as a base station, within a certain geographic area. The user equipment in the geographic area can uniquely identify the cell based on the cell identity, and access the cell to enjoy wireless communication services. Generally, a cell involves two layers of meanings, one is a coverage area of a cell, and is related to a geographical area of a broadcast cell identifier; and the other is a resource combination of a cell, which is related to a frequency resource that provides a wireless communication service. The coverage area is related to, but not identical to, the geographic area of the broadcast cell identity, and is usually defined as the geographic area required to achieve a certain service. The resource combination of a cell is related to a carrier but not identical. A carrier is typically defined as a modulated waveform that carries data or control signaling for a wireless communication service. A cell may have multiple carriers, and one carrier may also be shared by multiple cells.

在本申请中，由于无线接入设备不再广播小区标识，只广播MBMS同步标识，如第二MA标识。如果未来针对MBMS专用载波，取消小区的概念，则本申请中的小区也可理解为表示对于该无线接入设备，使用该MBMS专用载波广播信号所能覆盖的地理区域。具体考虑MBMS传输，针对MBMS 业务，仍然可以按MA为单位，进行MBSFN传输。不同的MA内的小区，使用不同的MA标识对MBMS业务数据进行加扰。针对MBMS同步信号，可以多MA协作传输，进一步保障覆盖，降低资源开销。此时MA标识类似于原有的小区标识概念，但区别在于，用户设备解析得到的MA标识不一定是用来加扰MBMS业务数据的MA标识。用户设备还可以通过另外的***消息或者MBMS控制信息，获得其他的MA标识。In the present application, since the radio access device no longer broadcasts the cell identity, only the MBMS synchronization identity, such as the second MA identity, is broadcast. If the concept of the cell is cancelled for the MBMS dedicated carrier in the future, the cell in the present application can also be understood as indicating the geographical area that can be covered by the MBMS dedicated carrier broadcast signal for the wireless access device. Consider MBMS transmission specifically for MBMS For services, MBSFN transmission can still be performed in units of MA. Cells in different MAs use different MA identifiers to scramble MBMS service data. For the MBMS synchronization signal, multi-MA cooperative transmission can be used to further ensure coverage and reduce resource overhead. The MA identifier is similar to the original cell identifier concept, but the difference is that the MA identifier obtained by the user equipment resolution is not necessarily the MA identifier used to scramble the MBMS service data. The user equipment can also obtain other MA identifiers through additional system messages or MBMS control information.

为了更详细地介绍上述通信***400，下面将结合图6说明核心网络设备。图6为本发明实施例中提供的一种支持MBMS传输的核心网络设备的示意图。所述核心网络设备600，可以为图4所示实施例中介绍的通信***400的核心网络设备。所述核心网络设备600可以分别与第一无线接入设备和第二无线接入设备连接，其中所述第一无线接入设备管理第一小区，所述第二无线接入设备管理第二小区，所述第一小区属于第一MA，所述第二小区属于第二MA，所述第一MA与所述第二MA不同。并且，所述核心网络设备600可以与图5所示实施例及各可选实施方式中的无线接入设备相互配合，共同支持MBMS传输，相关术语定义，实现方式，技术效果可以参考这些实施例及各可选实施方式的介绍。In order to introduce the above communication system 400 in more detail, the core network device will be described below with reference to FIG. FIG. 6 is a schematic diagram of a core network device supporting MBMS transmission according to an embodiment of the present invention. The core network device 600 may be a core network device of the communication system 400 introduced in the embodiment shown in FIG. The core network device 600 can be respectively connected to the first wireless access device and the second wireless access device, wherein the first wireless access device manages a first cell, and the second wireless access device manages a second cell The first cell belongs to the first MA, the second cell belongs to the second MA, and the first MA is different from the second MA. In addition, the core network device 600 can cooperate with the wireless access device in the embodiment shown in FIG. 5 and the optional implementation manners to support MBMS transmission. Related term definitions, implementation manners, and technical effects can be referred to these embodiments. And an introduction to each of the alternative embodiments.

如图6所示，所述核心网络设备600包括通信接口610，发送器620和处理器630。其中，该通信接口510一般为有线接口，有些接口的个数可以有一个或多个，用于与无线接入设备及其他的核心网络设备相连接。此外，核心网络设备600还可以包括接收器640、存储器650等。存储器650可以包括只读存储器和随机存取存储器，并向处理器630提供指令和数据。处理器630控制核心网络设备600的操作，也可以称为中央处理单元(Central Processing Unit，简称：CPU)。核心网络设备600的各个组件通过总线***50耦合在一起。 As shown in FIG. 6, the core network device 600 includes a communication interface 610, a transmitter 620, and a processor 630. The communication interface 510 is generally a wired interface, and the number of the interfaces may be one or more for connecting to the wireless access device and other core network devices. In addition, core network device 600 may also include a receiver 640, a memory 650, and the like. Memory 650 can include read only memory and random access memory and provides instructions and data to processor 630. The processor 630 controls the operation of the core network device 600, and may also be referred to as a central processing unit (CPU). The various components of core network device 600 are coupled together by bus system 50.

在本发明实施例中，所述核心网络设备600包括：有线接口610，发送器620，以及处理器630；其中，所述处理器用于630与所述发送器和所述有线接口通信，以使所述核心网络设备600：In the embodiment of the present invention, the core network device 600 includes: a wired interface 610, a transmitter 620, and a processor 630; wherein the processor is configured to communicate with the transmitter and the wired interface, so that The core network device 600:

向所述第一无线接入设备发送第一MBMS同步标识；Sending a first MBMS synchronization identifier to the first wireless access device;

向所述第二无线接入设备发送第二MBMS同步标识；Sending a second MBMS synchronization identifier to the second wireless access device;

其中，所述第一MBMS同步标识和所述第二MBMS同步标识为相同的MBMS同步标识，所述MBMS同步标识用于生成MBMS同步信号。The first MBMS synchronization identifier and the second MBMS synchronization identifier are the same MBMS synchronization identifier, and the MBMS synchronization identifier is used to generate an MBMS synchronization signal.

可选地，所述处理器630用于与所述发送器620和所述有线接口610通信，以使所述核心网络设备600：Optionally, the processor 630 is configured to communicate with the transmitter 620 and the wired interface 610, so that the core network device 600:

在所述第一小区同属于所述第二MA，且所述第二MA包含的小区的数目多于或等于所述第一MA时；或者，在所述第一小区同属于所述第二MA，且所述第二小区覆盖的地理区域大于或等于所述第一小区时；When the first cell belongs to the second MA, and the number of cells included by the second MA is greater than or equal to the first MA; or, the first cell belongs to the second a MA, and the geographical area covered by the second cell is greater than or equal to the first cell;

所述核心网络设备600为多播协调实体时，所述第一MBMS同步标识通过MBMS调度信息(MBMS scheduling information)消息发送；其中，When the core network device 600 is a multicast coordination entity, the first MBMS synchronization identifier is sent by using an MBMS scheduling information message;

当所述第一小区不属于所述第二MA时，所述第二MA标识为所述MBMS调度信息消息中已有的第一MA标识之外，新增的用于生成MBMS同步信号的标识；When the first cell does not belong to the second MA, the second MA identifier is an identifier that is used to generate an MBMS synchronization signal, except for the first MA identifier that is already in the MBMS scheduling information message. ;

当所述第一小区同属于所述第二MA时，所述MBMS调度信息消息中还包括：用于指示所述无线接入设备根据所述第二MA标识生成MBMS同步信号的信息。 When the first cell belongs to the second MA, the MBMS scheduling information message further includes: information used to instruct the wireless access device to generate an MBMS synchronization signal according to the second MA identifier.

在实际实现时，上述各实施例及可选实施方式中，涉及核心网络设备与无线接入设备的信令交互，例如核心网络设备向无线接入设备核心网络设备向无线接入设备发送配置消息，以传递发送MBMS同步标识，如第二MA标识，或初始化或更新预配置的用于传输MBMS同步信号的无线资源；或者，核心网络设备向多个无线接入设备发送指示信息，以使多个无线接入设备为MBMS同步信号配置相同的无线资源；都可以重新设计新的消息进行承载，可以合并成一条消息或分成几条消息承载。In actual implementation, the foregoing embodiments and optional implementations involve signaling interaction between a core network device and a wireless access device, for example, the core network device sends a configuration message to the wireless access device core network device to the wireless access device. Transmitting an MBMS synchronization identifier, such as a second MA identity, or initializing or updating a pre-configured wireless resource for transmitting an MBMS synchronization signal; or, the core network device sends indication information to multiple wireless access devices to enable The wireless access devices configure the same radio resources for the MBMS synchronization signals; both can redesign new messages for bearer, and can be combined into one message or divided into several message bearers.

如果考虑基于目前的标准进行改进，可以考虑修改现有的M2接口传递的消息，例如MBMS会话开始启动请求(MBMS session start request)消息，或者，MBMS调度信息。具体地，可以在这些已有消息的基础上，新增字段或修改原有字段，承载新引入的信息。例如，当所述第一小区不属于所述第二MA时，由于现有的MBMS调度信息消息中只会承载第一MA标识，不会承载第二MA标识。因此，对于MBMS调度信息消息而言，这里的第二MA标识则是新增的用于生成MBMS同步信号的标识。再例如，当所述第一小区同属于所述第二MA时，由于现有的MBMS调度信息消息中既会承载第一MA标识，也会承载第二MA标识。因此，需要额外指示所述无线接入设备根据所述第二MA标识生成MBMS同步信号，例如修改字段名称后定义，或直接新增指示信息等。If it is considered to be improved based on the current standard, it may be considered to modify the message delivered by the existing M2 interface, such as an MBMS session start request message or MBMS scheduling information. Specifically, on the basis of these existing messages, a new field or a modified original field may be added to carry the newly introduced information. For example, when the first cell does not belong to the second MA, the existing MAMS scheduling information message only carries the first MA identifier, and does not carry the second MA identifier. Therefore, for the MBMS scheduling information message, the second MA identifier here is the newly added identifier for generating the MBMS synchronization signal. For example, when the first cell belongs to the second MA, the existing MAMS scheduling information message carries the first MA identifier and the second MA identifier. Therefore, the wireless access device needs to be additionally instructed to generate an MBMS synchronization signal according to the second MA identifier, for example, after modifying the field name, or directly adding the indication information.

以下将以LTE***为例，基站为eNB，核心网络设备为MCE，举例说明上述通信***400的工作流程。应理解，该MCE可以为其他核心网络设备，该eNB可以为其他无线接入设备。图7为本发明实施例中提供的一种支持MBMS传输的方法示意图。The following takes the LTE system as an example. The base station is an eNB, and the core network device is an MCE. For example, The workflow of the above communication system 400 will be described. It should be understood that the MCE may be other core network devices, and the eNB may be other wireless access devices. FIG. 7 is a schematic diagram of a method for supporting MBMS transmission according to an embodiment of the present invention.

如图7所示，所述方法包括：As shown in FIG. 7, the method includes:

步骤S701、MCE向eNB 1发送配置消息1，所述配置消息1中携带有第一MBMS同步标识。Step S701: The MCE sends a configuration message 1 to the eNB 1, where the configuration message 1 carries the first MBMS synchronization identifier.

步骤S703、MCE向eNB 2发送配置消息2，所述配置消息2中携带有第二MBMS同步标识。Step S703: The MCE sends a configuration message 2 to the eNB 2, where the configuration message 2 carries the second MBMS synchronization identifier.

其中，所述第一MBMS同步标识和所述第二MBMS同步标识为相同的MBMS同步标识，所述MBMS同步标识用于生成MBMS同步信号。可选地，该MBMS同步标识可以为第二MA标识。可选地，该配置消息1和配置消息2均可以为MBMS调度信息消息。可选地，该eNB也可以替换为MBMS广播设备。并且，当eNB或MBMS广播设备支持读取内部存储的MBMS同步标识时，上述步骤S701或S702中的至少一个可以替换为：eNB或MBMS广播设备读取内部存储的MBMS同步标识。相关概念可参考前述各实施例，此处不再赘述。The first MBMS synchronization identifier and the second MBMS synchronization identifier are the same MBMS synchronization identifier, and the MBMS synchronization identifier is used to generate an MBMS synchronization signal. Optionally, the MBMS synchronization identifier may be a second MA identifier. Optionally, both the configuration message 1 and the configuration message 2 may be an MBMS scheduling information message. Alternatively, the eNB may also be replaced with an MBMS broadcast device. And, when the eNB or the MBMS broadcast device supports reading the internally stored MBMS synchronization identifier, at least one of the foregoing steps S701 or S702 may be replaced by: the eNB or the MBMS broadcast device reads the internally stored MBMS synchronization identifier. For related concepts, refer to the foregoing embodiments, and details are not described herein again.

步骤S705、MCE向eNB 1发送配置消息3，所述配置消息3中携带有用于指示所述eNB 1为MBMS同步信号调度无线资源的信息。Step S705: The MCE sends a configuration message 3 to the eNB 1, where the configuration message 3 carries information for instructing the eNB 1 to schedule radio resources for the MBMS synchronization signal.

步骤S707、MCE向eNB 2发送配置消息4，所述配置消息4中携带有用于指示所述eNB 2为MBMS同步信号调度无线资源的信息。Step S707: The MCE sends a configuration message 4 to the eNB 2, where the configuration message 4 carries information for instructing the eNB 2 to schedule radio resources for the MBMS synchronization signal.

其中，所述配置消息3和配置消息4用于使所述eNB 1和eNB 2为MBMS同步信号调度的无线资源为相同的无线资源。如果所述eNB 1和eNB 2中已预配置用于传输MBMS同步信号的无线资源，例如已由通信协议事先约定时，步骤S705和步骤S707也可以省略。或者，此处的步骤S705和步骤S707也可以用于初始化或更新所述预配置的无线资源。需要说明的是，以上步骤S701、S703、S705、S705之间并不限定执行顺序。并且，步骤S701和S705可以合并为一个步骤，即配置消息1和配置消息3为相同的消息。步骤S703和S707也可以合并为一个步骤，即配置消息2和配置消息4为相同的消息。The configuration message 3 and the configuration message 4 are used to make the radio resources scheduled by the eNB 1 and the eNB 2 for the MBMS synchronization signal to be the same radio resource. If the radio resources for transmitting the MBMS synchronization signal are pre-configured in the eNB 1 and the eNB 2, for example, have been previously agreed by the communication protocol, step S705 and step S707 may also be omitted. Alternatively, step S705 and step S707 herein may also be used to initialize or update the pre-configured radio resources. It should be noted that the execution order is not limited between the above steps S701, S703, S705, and S705. And, step Steps S701 and S705 can be combined into one step, that is, configuration message 1 and configuration message 3 are the same message. Steps S703 and S707 can also be combined into one step, that is, configuration message 2 and configuration message 4 are the same message.

步骤S709、eNB 1根据所述MBMS同步标识生成并广播MBMS同步信号。Step S709, the eNB 1 generates and broadcasts an MBMS synchronization signal according to the MBMS synchronization identifier.

步骤S709’、eNB 2根据所述MBMS同步标识生成并广播MBMS同步信号。Step S709', the eNB 2 generates and broadcasts an MBMS synchronization signal according to the MBMS synchronization identifier.

需要说明的是，上述步骤S709和步骤S709’为并行执行。eNB 1和eNB2在相同的无线资源上广播相同的MBMS同步信号。因此，能够实现多MA协作传输相同的MBMS同步信号，既能够提升同步信号的覆盖范围，也能够并且节省传输资源。It should be noted that the above steps S709 and S709' are performed in parallel. eNB 1 and eNB 2 broadcast the same MBMS synchronization signal on the same radio resource. Therefore, the multi-MA cooperative transmission of the same MBMS synchronization signal can be realized, which can improve the coverage of the synchronization signal, and can also save transmission resources.

本领域技术人员能够理解，本发明实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件，或两者的结合进行实现。为清楚展示硬件和软件的可替换性(interchangeability)，上述的各种说明性部件(illustrative components)和步骤已经通用地描述了它们的功能。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个***的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现所述的功能，但这种实现不应被理解为超出本发明实施例保护的范围。Those skilled in the art can understand that the various illustrative logical blocks and steps listed in the embodiments of the present invention can be implemented by electronic hardware, computer software, or a combination of the two. To clearly illustrate the interchangeability of hardware and software, the various illustrative components and steps described above have generally described their functionality. Whether such functionality is implemented by hardware or software depends on the design requirements of the particular application and the overall system. A person skilled in the art can implement the described functions using various methods for each specific application, but such implementation should not be construed as being beyond the scope of the embodiments of the present invention.

本发明实施例中所描述的各种说明性的逻辑块，模块可以通过通用处理器，数字信号处理器，专用集成电路(ASIC)，现场可编程门阵列(FPGA)或其它可编程逻辑装置，离散门或晶体管逻辑，离散硬件部件，或上述任何组合的设计来实现或操作所描述的功能。通用处理器可以为微处理器，可选地，该通用处理器也可以为任何传统的处理器、控制器、微控制器或状态机。处理器也可以通过计算装置的组合来实现，例如数字信号处理器和微处理器，多个微处理器，一个或多个微处理器联合一个数字信号处理器核，或任何其它类似的配置来实现。The various illustrative logic blocks described in the embodiments of the present invention may be implemented by a general purpose processor, a digital signal processor, an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic device. Discrete gate or transistor logic, discrete hardware components, or any combination of the above are designed to implement or operate the functions described. A general purpose processor may be a microprocessor. Alternatively, the general purpose processor may be any conventional processor, controller, microcontroller, or state machine. The processor can also be implemented by a combination of computing devices, such as a digital signal processor It is implemented with a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other similar configuration.

本发明实施例中所描述的方法或算法的步骤可以直接嵌入硬件、处理器执行的软件模块、或者这两者的结合。软件模块可以存储于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、可移动磁盘、CD-ROM或本领域中其它任意形式的存储媒介中。示例性地，存储媒介可以与处理器连接，以使得处理器可以从存储媒介中读取信息，并可以向存储媒介存写信息。可选地，存储媒介还可以集成到处理器中。处理器和存储媒介可以设置于ASIC中，ASIC可以设置于用户终端中。可选地，处理器和存储媒介也可以设置于用户终端中的不同的部件中。The steps of the method or algorithm described in the embodiments of the present invention may be directly embedded in hardware, a software module executed by a processor, or a combination of the two. The software modules can be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium in the art. Illustratively, the storage medium can be coupled to the processor such that the processor can read information from the storage medium and can write information to the storage medium. Alternatively, the storage medium can also be integrated into the processor. The processor and the storage medium may be disposed in an ASIC, and the ASIC may be disposed in the user terminal. Alternatively, the processor and the storage medium may also be disposed in different components in the user terminal.

在一个或多个示例性的设计中，本发明实施例所描述的上述功能可以在硬件、软件、固件或这三者的任意组合来实现。如果在软件中实现，这些功能可以存储与电脑可读的媒介上，或以一个或多个指令或代码形式传输于电脑可读的媒介上。电脑可读媒介包括电脑存储媒介和便于使得让电脑程序从一个地方转移到其它地方的通信媒介。存储媒介可以是任何通用或特殊电脑可以接入访问的可用媒体。例如，这样的电脑可读媒体可以包括但不限于RAM、ROM、EEPROM、CD-ROM或其它光盘存储、磁盘存储或其它磁性存储装置，或其它任何可以用于承载或存储以指令或数据结构和其它可被通用或特殊电脑、或通用或特殊处理器读取形式的程序代码的媒介。此外，任何连接都可以被适当地定义为电脑可读媒介，例如，如果软件是从一个网站站点、服务器或其它远程资源通过一个同轴电缆、光纤电脑、双绞线、数字用户线(DSL)或以例如红外、无线和微波等无线方式传输的也被包含在所定义的电脑可读媒介中。所述的碟片(disk)和磁盘(disc)包括压缩磁盘、镭射盘、光盘、DVD、软盘和蓝光光盘，磁盘通常以磁性复制数据，而碟片通常以激光进行光学复制数据。上述的组合也可以包含在电脑可读媒介中。 In one or more exemplary designs, the above-described functions described in the embodiments of the present invention may be implemented in hardware, software, firmware, or any combination of the three. If implemented in software, these functions may be stored on a computer readable medium or transmitted as one or more instructions or code to a computer readable medium. Computer readable media includes computer storage media and communication media that facilitates the transfer of computer programs from one place to another. The storage medium can be any available media that any general purpose or special computer can access. For example, such computer-readable media can include, but is not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage or other magnetic storage device, or any other device or data structure that can be used for carrying or storing Other media that can be read by a general purpose or special computer, or a general purpose or special processor. In addition, any connection can be appropriately defined as a computer readable medium, for example, if the software is from a website site, server or other remote source through a coaxial cable, fiber optic computer, twisted pair, digital subscriber line (DSL) Or wirelessly transmitted in, for example, infrared, wireless, and microwave, is also included in the defined computer readable medium. The disks and discs include compact disks, laser disks, optical disks, DVDs, floppy disks, and Blu-ray disks. Disks typically replicate data magnetically, while disks typically optically replicate data with a laser. Combinations of the above may also be included in a computer readable medium.

本发明说明书的上述描述可以使得本领域技术任何可以利用或实现本发明的内容，任何基于所公开内容的修改都应该被认为是本领域显而易见的，本发明所描述的基本原则可以应用到其它变形中而不偏离本发明的发明本质和范围。因此，本发明所公开的内容不仅仅局限于所描述的实施例和设计，还可以扩展到与本发明原则和所公开的新特征一致的最大范围。 The above description of the specification of the present invention may enable any of the art to utilize or implement the present invention. Any modifications based on the disclosure should be considered as obvious in the art. The basic principles described herein can be applied to other variants. Without departing from the spirit and scope of the invention. Therefore, the present disclosure is not limited to the described embodiments and designs, but may be extended to the maximum extent consistent with the principles of the invention and the novel features disclosed.

Claims

一种支持多媒体广播多播业务MBMS传输的无线接入设备，所述无线接入设备管理第一小区，所述第一小区属于第一MBMS单频网络区域MA，其特征在于，所述无线接入设备包括：A radio access device supporting MBMS transmission of a multimedia broadcast multicast service, where the radio access device manages a first cell, where the first cell belongs to a first MBMS single frequency network area MA, and the radio access Incoming devices include:

无线接口，与所述无线接口连接的发送器，以及与所述发送器连接的处理器；其中，所述处理器用于控制所述无线接入设备：a wireless interface, a transmitter coupled to the wireless interface, and a processor coupled to the transmitter; wherein the processor is configured to control the wireless access device:

获取MBMS同步标识；根据所述MBMS同步标识生成MBMS同步信号；以及Obtaining an MBMS synchronization identifier; generating an MBMS synchronization signal according to the MBMS synchronization identifier;

基于预配置的无线资源，广播所述MBMS同步信号；Broadcasting the MBMS synchronization signal based on pre-configured wireless resources;

其中，所述MBMS同步标识，所述预配置的无线资源也适用于第二小区，所述第二小区属于第二MA，所述第一MA与所述第二MA不同。The MBMS synchronization identifier, the pre-configured radio resource is also applicable to the second cell, the second cell belongs to the second MA, and the first MA is different from the second MA.
根据权利要求1所述的无线接入设备，其特征在于：The wireless access device of claim 1 wherein:

所述MBMS同步标识为第二MA标识，所述第一小区同属于所述第二MA；其中，The MBMS synchronization identifier is a second MA identifier, and the first cell belongs to the second MA;

与所述第一MA相比，所述第二MA包含的小区的数目更多；或者，与所述第一小区相比，所述第二小区覆盖的地理区域更大。The second MA includes more cells than the first MA; or, the second cell covers a larger geographic area than the first cell.
根据权利要求1所述的无线接入设备，其特征在于：The wireless access device of claim 1 wherein:

所述MBMS同步标识为第二MA标识，所述第一小区不属于所述第二MA。The MBMS synchronization identifier is a second MA identifier, and the first cell does not belong to the second MA.
根据权利要求1至3任一所述的无线接入设备，其特征在于，所述无线接入设备为基站，所述基站还包括第一接收器；The radio access device according to any one of claims 1 to 3, wherein the radio access device is a base station, and the base station further includes a first receiver;

所述处理器用于控制所述无线接入设备获取MBMS同步标识，包括： The processor is configured to control the wireless access device to obtain an MBMS synchronization identifier, including:

所述处理器用于与所述第一接收器通信，以使：所述基站接收核心网络设备发送的第一配置消息，所述第一配置消息中包含所述MBMS同步标识。The processor is configured to communicate with the first receiver, so that: the base station receives a first configuration message sent by a core network device, where the first configuration message includes the MBMS synchronization identifier.
根据权利要求4所述的无线接入设备，其特征在于：The wireless access device of claim 4, wherein:

所述第一配置消息为MBMS调度信息消息；其中，The first configuration message is an MBMS scheduling information message;

当所述MBMS同步标识为第二MA标识，且所述第一小区不属于所述第二MA时，所述第二MA标识为所述MBMS调度信息消息中已有的第一MA标识之外，新增的用于生成MBMS同步信号的标识；When the MBMS synchronization identifier is the second MA identifier, and the first cell does not belong to the second MA, the second MA identifier is other than the first MA identifier that is already in the MBMS scheduling information message. , an added identifier for generating an MBMS synchronization signal;

当所述MBMS同步标识为第二MA标识，且所述第一小区同属于所述第二MA时，所述MBMS调度信息消息中还包括：用于指示所述无线接入设备根据所述第二MA标识生成MBMS同步信号的信息。When the MBMS synchronization identifier is the second MA identifier, and the first cell belongs to the second MA, the MBMS scheduling information message further includes: indicating, by the wireless access device, according to the The second MA identifies information for generating an MBMS synchronization signal.
根据权利要求1至3任一所述的无线接入设备，其特征在于，所述无线接入设备为MBMS广播设备，所述MBMS广播设备为部署用于MBMS传输的广播设备，所述MBMS广播设备包括第一存储器，所述第一存储器中存储了用于指示所述MBMS同步标识的代码；The wireless access device according to any one of claims 1 to 3, wherein the wireless access device is an MBMS broadcast device, and the MBMS broadcast device is a broadcast device deployed for MBMS transmission, the MBMS broadcast The device includes a first memory in which a code for indicating the MBMS synchronization identifier is stored;

所述处理器用于控制所述无线接入设备获取MBMS同步标识，包括：The processor is configured to control the wireless access device to obtain an MBMS synchronization identifier, including:

所述处理器用于读取所述第一存储器中的用于指示所述MBMS同步标识的代码。The processor is configured to read a code in the first memory for indicating the MBMS synchronization identifier.
根据权利要求1至6任一所述的无线接入设备，其特征在于，所述无线接入设备包括：The wireless access device according to any one of claims 1 to 6, wherein the wireless access device comprises:

第二存储器，所述第二存储器中存储了用于指示所述预配置的无线资源的代码；和/或，a second memory, in the second memory, storing a code for indicating the pre-configured wireless resource; and/or,

第二接收器，用于接收核心网络设备发送的第二配置消息，所述第二配置消息用于初始化或更新所述预配置的无线资源；a second receiver, configured to receive a second configuration message sent by the core network device, where the second The configuration message is used to initialize or update the pre-configured wireless resource;

其中，当所述无线接入设备为MBMS广播设备时，所述第二存储器与所述第一存储器相同或不同；当所述无线接入设备为基站时，所述第二接收器与所述第一接收器相同或不同。Wherein, when the wireless access device is an MBMS broadcast device, the second memory is the same as or different from the first memory; when the wireless access device is a base station, the second receiver is The first receivers are the same or different.
一种支持多媒体广播多播业务MBMS传输的核心网络设备，所述核心网络设备分别与第一无线接入设备，第二无线接入设备连接，所述第一无线接入设备管理第一小区，所述第二无线接入设备管理第二小区，所述第一小区属于第一MBMS单频网络区域MA，所述第二小区属于第二MA，所述第一MA与所述第二MA不同，其特征在于，所述核心网络设备包括：A core network device supporting MBMS transmission of a multimedia broadcast multicast service, where the core network device is respectively connected to a first wireless access device and a second wireless access device, and the first wireless access device manages the first cell, The second radio access device manages the second cell, where the first cell belongs to the first MBMS single frequency network area MA, the second cell belongs to the second MA, and the first MA is different from the second MA The core network device includes:

有线接口，发送器，以及处理器；其中，所述处理器用于与所述发送器和所述有线接口通信，以使所述核心网络设备：a wired interface, a transmitter, and a processor; wherein the processor is configured to communicate with the transmitter and the wired interface to cause the core network device to:

向所述第一无线接入设备发送第一MBMS同步标识；Sending a first MBMS synchronization identifier to the first wireless access device;

向所述第二无线接入设备发送第二MBMS同步标识；Sending a second MBMS synchronization identifier to the second wireless access device;

其中，所述第一MBMS同步标识和所述第二MBMS同步标识为相同的MBMS同步标识，所述MBMS同步标识用于生成MBMS同步信号。The first MBMS synchronization identifier and the second MBMS synchronization identifier are the same MBMS synchronization identifier, and the MBMS synchronization identifier is used to generate an MBMS synchronization signal.
根据权利要求8所述的核心网络设备，其特征在于：The core network device according to claim 8, wherein:

所述处理器用于与所述发送器和所述有线接口通信，以使所述核心网络设备：The processor is configured to communicate with the transmitter and the wired interface to enable the core network device to:

在所述第一小区同属于所述第二MA，且所述第二MA包含的小区的数目多于或等于所述第一MA时；或者，在所述第一小区同属于所述第二MA，且所述第二小区覆盖的地理区域大于或等于所述第一小区时；When the first cell belongs to the second MA, and the number of cells included by the second MA is greater than or equal to the first MA; or, the first cell belongs to the second a MA, and the geographical area covered by the second cell is greater than or equal to the first cell;

确定所述第二MA为主MA，所述主MA的标识作为所述MBMS同步标识。 Determining that the second MA is a primary MA, and the identifier of the primary MA is used as the MBMS synchronization identifier.
根据权利要求8所述的核心网络设备，其特征在于：The core network device according to claim 8, wherein:

所述MBMS同步标识为第二MA标识；并且，所述第一小区不属于所述第二MA。The MBMS synchronization identifier is a second MA identifier; and the first cell does not belong to the second MA.
根据权利要求8至10任一所述的核心网络设备，其特征在于：The core network device according to any one of claims 8 to 10, characterized in that:

所述核心网络设备为多播协调实体，所述第一MBMS同步标识通过MBMS调度信息消息发送；其中，The core network device is a multicast coordination entity, and the first MBMS synchronization identifier is sent by using an MBMS scheduling information message;

当所述第一小区不属于所述第二MA时，所述第二MA标识为所述MBMS调度信息消息中已有的第一MA标识之外，新增的用于生成MBMS同步信号的标识；When the first cell does not belong to the second MA, the second MA identifier is an identifier that is used to generate an MBMS synchronization signal, except for the first MA identifier that is already in the MBMS scheduling information message. ;

当所述第一小区同属于所述第二MA时，所述MBMS调度信息消息中还包括：用于指示所述无线接入设备根据所述第二MA标识生成MBMS同步信号的信息。When the first cell belongs to the second MA, the MBMS scheduling information message further includes: information used to instruct the wireless access device to generate an MBMS synchronization signal according to the second MA identifier.
根据权利要求8至11任一所述的核心网络设备，其特征在于：The core network device according to any one of claims 8 to 11, characterized in that:

所述处理器用于与所述发送器和所述有线接口通信，以使所述核心网络设备：The processor is configured to communicate with the transmitter and the wired interface to enable the core network device to:

向所述第一无线接入设备和所述第二无线接入设备发送指示信息，以使所述第一无线接入设备和所述第二无线接入设备为所述MBMS同步信号配置相同的无线资源。Sending indication information to the first wireless access device and the second wireless access device, so that the first wireless access device and the second wireless access device configure the same for the MBMS synchronization signal Wireless resources.
一种通信***，所述通信***支持多媒体广播多播业务MBMS传输，所述通信***包括第一无线接入设备和第二无线接入设备，所述第一无线接入设备管理第一小区，所述第二无线接入设备管理第二小区，所述第一小区属于第一MBMS单频网络区域MA，所述第二小区属于第二MA，所述第一MA与所述第二MA不同，其特征在于：A communication system, the communication system supporting MBMS transmission of a multimedia broadcast multicast service, the communication system comprising a first wireless access device and a second wireless access device, wherein the first wireless access device manages a first cell, The second radio access device manages the second cell, where the first cell belongs to the first MBMS single frequency network area MA, and the second cell belongs to the second MA. The first MA is different from the second MA and is characterized by:

第一无线接入设备用于：获取第一MBMS同步标识；根据所述第一MBMS同步标识生成第一MBMS同步信号；基于预配置的第一无线资源，广播所述第一MBMS同步信号；The first radio access device is configured to: acquire a first MBMS synchronization identifier; generate a first MBMS synchronization signal according to the first MBMS synchronization identifier; and broadcast the first MBMS synchronization signal according to the pre-configured first radio resource;

第二无线接入设备用于：获取第二MBMS同步标识；根据所述第二MBMS同步标识生成第二MBMS同步信号；基于预配置的第二无线资源，广播所述第二MBMS同步信号；The second radio access device is configured to: acquire a second MBMS synchronization identifier; generate a second MBMS synchronization signal according to the second MBMS synchronization identifier; and broadcast the second MBMS synchronization signal based on the pre-configured second radio resource;

其中，所述第一MBMS同步标识和所述第二MBMS同步标识为相同的MBMS同步标识，所述预配置的第一无线资源和所述预配置的第二无线资源为相同的无线资源。The first MBMS synchronization identifier and the second MBMS synchronization identifier are the same MBMS synchronization identifier, and the pre-configured first radio resource and the pre-configured second radio resource are the same radio resource.
根据权利要求13所述的通信***，其特征在于，还包括：The communication system of claim 13 further comprising:

分别与所述第一无线接入设备、所述第二无线接入设备连接的核心网络设备，用于：向所述第一无线接入设备发送所述第一MBMS同步标识；向所述第二无线接入设备发送所述第二MBMS同步标识。a core network device that is connected to the first wireless access device and the second wireless access device, respectively, configured to: send the first MBMS synchronization identifier to the first wireless access device; The second wireless access device sends the second MBMS synchronization identifier.
根据权利要求14所述的通信***，其特征在于：The communication system according to claim 14 wherein:

所述MBMS同步标识为第二MA标识；并且，所述第一小区不属于所述第二MA。The MBMS synchronization identifier is a second MA identifier; and the first cell does not belong to the second MA.
根据权利要求14所述的通信***，其特征在于，所述核心网络设备用于：The communication system according to claim 14, wherein said core network device is configured to:

在所述第二MA包含的小区的数目多于或等于所述第一MA时；或者，在所述第二小区覆盖的地理区域大于或等于所述第一小区时；When the number of cells included in the second MA is greater than or equal to the first MA; or when the geographical area covered by the second cell is greater than or equal to the first cell;

确定所述第二MA为主MA，所述主MA的标识作为所述MBMS同步标识。 Determining that the second MA is a primary MA, and the identifier of the primary MA is used as the MBMS synchronization identifier.
根据权利要求14至16中任一所述的通信***，其特征在于：A communication system according to any one of claims 14 to 16, wherein:

所述核心网络设备为多播协调实体，所述第一MBMS同步标识通过MBMS调度信息消息发送；The core network device is a multicast coordination entity, and the first MBMS synchronization identifier is sent by using an MBMS scheduling information message;

其中，当所述第一小区不属于所述第二MA时，所述第二MA标识为所述MBMS调度信息消息中已有的第一MA标识之外，新增的用于生成MBMS同步信号的标识；When the first cell does not belong to the second MA, the second MA identifier is used to generate an MBMS synchronization signal, except for the first MA identifier that is already in the MBMS scheduling information message. Identification

当所述第一小区同属于所述第二MA时，所述MBMS调度信息消息中还包括：用于指示所述无线接入设备根据所述第二MA标识生成MBMS同步信号的信息。When the first cell belongs to the second MA, the MBMS scheduling information message further includes: information used to instruct the wireless access device to generate an MBMS synchronization signal according to the second MA identifier.
根据权利要求14至17任一所述的通信***，其特征在于，所述核心网络设备用于：The communication system according to any one of claims 14 to 17, wherein the core network device is used to:

向所述第一无线接入设备和所述第二无线接入设备发送指示信息，以使所述第一无线接入设备和所述第二无线接入设备为所述MBMS同步信号配置相同的无线资源。Sending indication information to the first wireless access device and the second wireless access device, so that the first wireless access device and the second wireless access device configure the same for the MBMS synchronization signal Wireless resources.
一种支持多媒体广播多播业务(MBMS)传输的方法，其特征在于，包括：A method for supporting Multimedia Broadcast Multicast Service (MBMS) transmission, comprising:

无线接入设备获取MBMS同步标识，所述无线接入设备管理第一小区，所述第一小区属于第一MBMS单频网络区域MA；The wireless access device acquires an MBMS synchronization identifier, the wireless access device manages a first cell, and the first cell belongs to a first MBMS single frequency network area MA;

所述无线接入设备根据所述MBMS同步标识，生成MBMS同步信号；Generating, by the wireless access device, an MBMS synchronization signal according to the MBMS synchronization identifier;

所述无线接入设备基于预配置的无线资源，广播所述MBMS同步信号；The wireless access device broadcasts the MBMS synchronization signal based on a pre-configured wireless resource;

其中，所述MBMS同步标识，所述预配置的无线资源也适用于第二小区，所述第二小区属于第二MA，所述第一MA与所述第二MA不同。 The MBMS synchronization identifier, the pre-configured radio resource is also applicable to the second cell, the second cell belongs to the second MA, and the first MA is different from the second MA.
根据权利要求19所述的方法，其特征在于：The method of claim 19 wherein:

所述MBMS同步标识为第二MA标识，所述第一小区同属于所述第二MA；其中，The MBMS synchronization identifier is a second MA identifier, and the first cell belongs to the second MA;

与所述第一MA相比，所述第二MA包含的小区的数目更多；或者，与所述第一小区相比，所述第二小区覆盖的地理区域更大。The second MA includes more cells than the first MA; or, the second cell covers a larger geographic area than the first cell.
根据权利要求19所述的方法，其特征在于：The method of claim 19 wherein:

所述MBMS同步标识为第二MA标识，所述第一小区不属于所述第二MA。The MBMS synchronization identifier is a second MA identifier, and the first cell does not belong to the second MA.
根据权利要求19至21任一所述的方法，其特征在于，所述无线接入设备为基站，则所述无线接入设备获取MBMS同步标识，包括：The method according to any one of claims 19 to 21, wherein the wireless access device is a base station, and the wireless access device acquires an MBMS synchronization identifier, including:

所述基站接收核心网络设备发送的第一配置消息，所述第一配置消息中包含所述MBMS同步标识。The base station receives a first configuration message sent by the core network device, where the first configuration message includes the MBMS synchronization identifier.
根据权利要求22所述的方法，其特征在于：The method of claim 22 wherein:

所述第一配置消息为MBMS调度信息消息；其中，The first configuration message is an MBMS scheduling information message;

当所述MBMS同步标识为第二MA标识，且所述第一小区不属于所述第二MA时，所述第二MA标识为所述MBMS调度信息消息中已有的第一MA标识之外，新增的用于生成MBMS同步信号的标识；When the MBMS synchronization identifier is the second MA identifier, and the first cell does not belong to the second MA, the second MA identifier is other than the first MA identifier that is already in the MBMS scheduling information message. , an added identifier for generating an MBMS synchronization signal;

当所述MBMS同步标识为第二MA标识，且所述第一小区同属于所述第二MA时，所述MBMS调度信息消息中还包括：用于指示所述无线接入设备根据所述第二MA标识生成MBMS同步信号的信息。When the MBMS synchronization identifier is the second MA identifier, and the first cell belongs to the second MA, the MBMS scheduling information message further includes: indicating, by the wireless access device, according to the The second MA identifies information for generating an MBMS synchronization signal.
根据权利要求19至21任一所述的方法，其特征在于，所述无线接入设备为MBMS广播设备，所述MBMS广播设备为部署用于MBMS传输的广播设备，所述MBMS广播设备中存储了用于指示所述MBMS同步标识的代码；则所述无线接入设备获取所述MBMS同步标识，包括：The method according to any one of claims 19 to 21, wherein the wireless access device is an MBMS broadcast device, and the MBMS broadcast device is deployed for MBMS transmission. a broadcast device, the MBMS broadcast device stores a code for indicating the MBMS synchronization identifier; and the wireless access device acquires the MBMS synchronization identifier, including:

所述MBMS广播设备读取内部存储的用于指示所述MBMS同步标识的代码。The MBMS broadcast device reads an internally stored code indicating the MBMS synchronization identity.
根据权利要求19至24任一所述的方法，其特征在于，还包括：The method according to any one of claims 19 to 24, further comprising:

所述MBMS广播设备读取内部存储的用于指示所述预配置的无线资源的代码；和/或，The MBMS broadcast device reads an internally stored code for indicating the pre-configured wireless resource; and/or,

接收核心网络设备发送的第二配置消息，所述第二配置消息用于初始化或更新所述预配置的无线资源。 Receiving a second configuration message sent by the core network device, where the second configuration message is used to initialize or update the pre-configured wireless resource.