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CN100438701C - Multicast broadcast channel distributing method in voice multicast broadcast service - Google Patents

Multicast broadcast channel distributing method in voice multicast broadcast service Download PDF

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CN100438701C
CN100438701C CN 200610025772 CN200610025772A CN100438701C CN 100438701 C CN100438701 C CN 100438701C CN 200610025772 CN200610025772 CN 200610025772 CN 200610025772 A CN200610025772 A CN 200610025772A CN 100438701 C CN100438701 C CN 100438701C
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multicast
broadcast
service
channel
voice
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CN 200610025772
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CN1859771A (en )
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仲海泉
侯智强
戴明扬
高树亮
鲁智锋
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华为技术有限公司
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Abstract

本发明涉及移动通信领域,公开了一种语音组播广播业务中组播广播信道分配方法,使得当BSS建立小区组播广播信道失败时,MS可以尽可能地加入组播。 The present invention relates to the field of mobile communications, discloses a speech broadcast multicast service in the multicast broadcast channel allocation method, such as a cell BSS establish the multicast broadcast channel fails, the MS may join the multicast as possible. 本发明中,在VGCS/VBS业务中BSS建立小区的组播广播信道失败的情况下,向该小区中的需要加入该业务的MS发送信道分配失败消息,其中携带该MS可用的相邻小区的组播广播信道信息,该MS则根据相邻小区的组播广播信道信息,加入指定的相邻小区的组播广播信道。 In the present invention, at VGCS / VBS business establishment where the multicast broadcast channel in a cell of the BSS fails, this requires the addition of a cell in the service MS sends a channel assignment failure message carrying the neighbor cell is available for the MS a multicast broadcast channel information, the neighboring cell according to the MS the multicast broadcast channel information, to the specified multicast broadcast channel in neighboring cells.

Description

语音组播广播业务中组播广播信道分配方法 A broadcast channel allocation method in a multicast voice BCMCS

技术领域 FIELD

本发明涉及移动通信领域,特别涉及语音组播广播业务(Voice Group Call Service and Voice Broadcast Service,简称"VGCS/VBS,,)。 The present invention relates to the field of mobile communications, particularly to a voice multicast broadcast service (Voice Group Call Service and Voice Broadcast Service, abbreviated "VGCS / VBS ,,).

背景技术 Background technique

众所周知,铁路是国家经济的一条大动脉,而铁路通信是铁路运输生产的主动脉。 As we all know, the railway is a main artery of the national economy, rail transport and railway communications is the production of the aorta. 建立一个安全、可靠、可持续发展的铁路系统关系着国计民生。 Establish a safe, secure and sustainable development of the rail system bearing on people's livelihood. 在欧洲得到广泛试-验的铁路全球通移动通讯系统(GSM for Railway,简称"GSM-R")作为一种先进的技术体系,为铁路专用通信提供了一个功能强大、业务丰富、稳定可靠的综合信息化平台,在我国的发展也已经提上了曰程,其运用前景不可小觑。 It has been widely tested in Europe - inspection of railway Global System for Mobile Communications (GSM for Railway, referred to as the "GSM-R") as an advanced technology system, provides a powerful, rich business, stable and reliable integrated into a dedicated communication railway information platform, the development of China has also been put on the said process, the prospects of its use should not be overlooked.

GSM-R是在全J泉移动通信系统(Global System for mobile Communication,简称"GSM")之上增加集群通信功能而构成的一个铁路专用的移动通信系统。 GSM-R is to increase the cluster communication function J over all the springs mobile communication system (Global System for mobile Communication, referred to as "GSM") constituted by a railway mobile communication system. 所增加的集群功能包含先进话音呼叫业务(Advanced Speech Call Item,简称"ASCI")功能,由GSM Phase2十(GSM阶段2 + ) The increased clustering capabilities include advanced voice call service (Advanced Speech Call Item, referred to as the "ASCI") function, the GSM Phase2 ten (GSM Phase 2 +)

标准定义。 Standard definition.

ASCI功能包含了三种专用移动通信的基本业务:增强的多级优先与强占权(Enhanced Multi-Level Precedence and Pre-emption, 简称"eMLPP")、 VGCS和语音广播业务(Voice Broadcast Service,筒称"VBS")。 ASCI features include the basic operations of three kinds of private mobile communications: enhanced multi-level precedence and usurped rights (Enhanced Multi-Level Precedence and Pre-emption, referred to as "eMLPP"), VGCS and Voice Broadcast Service (Voice Broadcast Service, said tube "VBS").

其中,VGCS是由多方参加,其中一部分人可以讲话,多方聆听的点对多点的语音通信方式。 Which, VGCS was attended by the parties, some of them can speak, listen to the multi-way voice communication multipoint. 它突破了点对点通信的局限性,能够快速建立呼叫。 It breaks through the limitations point to point communication, to quickly establish a call.

这项业务中包含两种身份的成员,调度员和业务用户:调度员可以是固网用户或者移动用户,最多只能有五个,也可以没有,通过网络为其建立的 This business is included members of the two identities, dispatchers and business users: Dispatchers can be fixed-line users or mobile users, can only have five, or may not, for the establishment of the network

专用通道参与组播的语音通信;业务用户为签约VGCS业务的移动用户,数量不限,被叫业务用户通过组播区域内的组播通道参与組播的语音通信。 Dedicated channels are involved in voice communication multicast; VGCS service users subscription service mobile users, an unlimited number of users participating in voice communication service called multicast channel within a multicast area multicast.

在呼叫建立期间,给主叫业务用户和调度员提供标准的双向信道,给所有的^皮叫业务用户分配同一业务信道的下行链路进行接听。 During the call setup, the calling business users and dispatchers provide a standard two-way channel, carried answer to all ^ downlink skin called business users are assigned the same traffic channel. VGCS业务呼叫在任何时刻只允许1个业务用户及至多5个调度员同时讲话。 VGCS service call at any time allowing only one business users and up to five simultaneous speech dispatcher.

在整个呼叫过程中业务用户要通过抢占上行链路来实现讲者和听者身份之间的转变。 Throughout the course of the call to service users to achieve the transition between speakers and listeners to seize the identity through the uplink. 处于听状态的业务用户可以通过抢上行的操作,即通过按一键通(Push To Talk,简称"PTT")按键获得讲话权参与讲话。 In the listening state the user can grab an uplink service operation, i.e. to obtain a press PTT (Push To Talk, referred to as "PTT") involved in speech by the speaker right button. 抡上行的操作按照"先到先得,,的方式进行,也即谁先抢到谁说话,其他业务用户只有当上行空闲时才可以继续抢上行的操作。而调度员由于具有自己的专用通道, 所以无需要抢上行的操作,随时可以参与讲话。 Picked up operation in accordance with the "first come first served ,, way, that is who should grab who speak only when other business users can continue to idle up to grab up operation. And because the dispatcher has its own dedicated channel , so no need to rush up the operation, ready to be involved in speech.

一个特定的VGCS业务通信由组识别号(Group ID,简称"组ID")和组播区域唯一确定,组ID与组播区域合起来称为组播参考。 VGCS a particular communication service is uniquely identified by the group identifier (Group ID, referred to as "group ID") and the multicast area and the multicast group ID are collectively referred to multicast the reference region.

其中,组ID标识该组的功能,即由哪些身份的成员参加; 一个业务用户可以同时签约多个组ID,并给它们设置不同的优先级;组播区域是指VGCS 业务通信所覆盖的地理范围,以无线蜂窝小区(Cell)为基本单位,可以由一个或多个蜂窝小区组成。 Wherein, the group ID of the group identification function, i.e., attended by members which identity; a user may subscribe to a plurality of service ID sets at the same time, and they are set to a different priority; multicast area refers to the geographical coverage of the communication service VGCS range, wireless cell (the cell) as a basic unit, may consist of one or more cell components. 这些小区可以属于同一移动交换中心(Mobile Switching Center,简称"MSC"),也可以属于不同MSC。 These cells may belong to the same mobile switching center (Mobile Switching Center, referred to as "MSC"), you may belong to a different MSC. 呼叫时每个相关小区有一个组播通道,其中上行链路仅供当前讲者使用(组发射模式),所有听者守候在下行链路上(组接收模式),有关组播的通知消息在通知信道(Notification Channel,筒称"NCH")上广播。 Each cell has associated call a multicast channel, wherein the uplink only speakers currently used (set of transmit mode), waiting for all listeners on the downlink (receive mode group), a notification message about the multicast notification channel (notification channel, said cartridge "NCH") broadcast.

业务用户通过拨打所签约的组ID,可以在组播区域内呼叫所有签约了该组ID的业务用户。 Service group ID dialed by the user subscription, the subscription can call all the group ID of the user service in the multicast area. 组播区域内业务用户接收到组播通知消息后,如果为本组成员,则可加入该呼叫;如果不为本組成员,则忽略此組播通知消息。 After the multicast service area can receive multicast notification message, if the membership in the group, can be added to the call; if not present group members, multicast notification message is ignored. in

6组播进行的过程中,组播区域外的本组成员进入该组播区域也会收到组#番通知消息,并可以加入呼叫。 Process for the multicast 6, the outer member of the multicast group into the region of the multicast group # Fan region also receive a notification message, and can be added to the call.

如果呼叫涉及多个MSC,那么由其中一个MSC负责组播的管理,称之为Anchor MSC (锚点MSC ),其它MSC则为Relay MSC (中继MSC )。 If the call involves multiple MSC, then the MSC which is responsible for a multicast management, called MSC Records (anchor MSC), compared to other MSC Relay MSC (relay MSC). Anchor MSC负责建立所有的连接,包括到本MSC的指定小区、相关Relay MSC以及调度台的连接,并通过一个会议桥完成语音的分发,Relay MSC到Anchor MSC之间仅需建立一条链路。 Anchor MSC is responsible for establishing all the connections, connected to this MSC's designated area, as well as the relevant Relay MSC dispatcher include and distribute complete voice through a conference bridge, only Relay MSC to establish a link between the Anchor MSC. Relay MSC负责其所属小区下行i吾音的分发。 Relay MSC is responsible for the distribution of their respective cell downlink i my tone.

VBS业务与VGCS业务具有相似的业务功能,主要差别在于:在VBS 业务广播期间只有广播发起者可以讲话,其他业务用户没有讲话的权利,始终处于接收状态。 VBS business and business VGCS have similar business functions, the main difference is that: Only the initiator broadcast during the broadcast can speak VBS business, other business users do not have the right to speak, always in the receiving state. 调度员如果不是广播的发起者也没有讲话的权利。 If the dispatcher is not a broadcast rights initiator he did not speak. 讲话用户无须按PTT键。 Speaking users do not press the PTT key.

而eMLPP业务则可以保证优先建立高优先权的呼叫。 The service is guaranteed eMLPP priority to establish a high priority call. 由于铁路紧急呼叫或列车自动控制等许多通信应用,都要求网络无论处于何种负栽状况下均能迅速建立这些呼叫,即使在一个小区发生拥塞时,例如,所有无线电频率和业务信道均被占用等情况下,eMLPP业务将立即切断低优先权的呼叫,优先建立高优先权的呼叫。 Since the railway automatic train control or emergency call and so many communication applications, whether in the network can require the rapid establishment of a call under these conditions which negatively plant, even when a cell congestion occurs, for example, all radio frequencies and the traffic channel are occupied inferior situation, eMLPP business will immediately cut low-priority call, priority to establish a high priority call.

根据GSM协议[3GPP TS 03.68 V7.2.0]描述,组播发起后,在小区中周期性发送不带组播广播信道信息的组播通知消息。 The GSM protocol [3GPP TS 03.68 V7.2.0] description, the multicast initiated periodically transmitted in a cell without a channel from the multicast broadcast channel information of the notification message. 当属于此组播的移动台 This undoubtedly multicast mobile station

(Mobile Station,简称"MS")检测到不带组播广播信道信息的组播通知消息后,MS给基站子系统(Base Station Subsystem,简称"BSS")上报组播通知响应消息。 (Mobile Station, referred to as "MS") detects Multicast without the multicast broadcast channel information notification message, MS to the base station subsystem (Base Station Subsystem, referred to as "BSS") reported multicast notification response message. 如果该小区中有空闲的业务信道(Traffic Channel,简称 If there is a cell in the idle traffic channel (Traffic Channel, referred to as

"TCH")资源,则BSS可以成功分配组播广#"信道。 "TCH") resources, the BSS can successfully allocate multicast wide # "channel.

BSS在成功分配组播广播信道后,在NCH信道上广播携带组播广播信道信息的信道释放(channel release)消息。 BSS After successfully allocated the multicast broadcast channel, a broadcast channel in the multicast broadcast channel carries NCH channel release information (channel release) message. MS解码信道释放消息中组播广播信道信息,将自动加入到组播广播信道上,对该信道进行监听。 MS decodes the channel release message in the multicast broadcast channel information will be automatically added to the multicast broadcast channel, listening to the channel.

组播广播信道分配后,如果BSS检测到该小区中没有属于此组播的MS, BSS将释放所分配的組播广播信道。 After the multicast broadcast channel assignment, if the BSS detects that the cell does not belong to this multicast of the MS, the BSS releases the multicast broadcast channel allocated. 之后,如果有属亍此組播的MS进入该小区后,这些MS也会向BSS上报组播通知响应消息,从而重新触发BSS 分配组4番广〗番信道。 Then, if the case of the right foot of this multicast MS enters the cell, the MS will report the multicast notification response message to the BSS, BSS assignment group which re-trigger 4 Fan Guang〗 Fan channel.

在实际应用中,上述方案存在以下问题:当BSS分配小区组播广播信道失败时,MS无法加入组播。 In practical applications, the presence of the above-described embodiment the following problems: When a cell BSS dispensing the multicast broadcast channel fails, the MS can not join the multicast.

造成这种情况的主要原因在于,由于在小区没有空闲的TCH资源时, BSS分配组播广播信道失败,BSS发送channel release (信道释放)消息给MSI,消息中没有组播广播信道的信息。 Main reason for this is that, since the cell when there is no idle TCH resources, the BSS fails allocated the multicast broadcast channel, the BSS transmits channel release (channel release) to the MSI message, the message is not a multicast broadcast channel information. MS1进入空闲状态。 MS1 enters an idle state. 这样,MSl就无法加入到组^"中。 In this way, MSl will not be able to join the group ^ "in.

发明内容 SUMMARY

有鉴于此,本发明的主要目的在于提供一种语音组播广播业务中组播广播信道分配方法,使得当BSS建立小区组播广播信道失败时,MS可以尽可能地加入组^燔。 In view of this, the main object of the present invention is a broadcast channel allocation method to provide a speech BCMCS multicast, so that when a cell BSS establish the multicast broadcast channel fails, the MS may be added to the burnt ^ groups as possible.

为实现上述目的,本发明提供了一种语音组播广播业务中组播广播信道分配方法,包含以下步骤: To achieve the above object, the present invention provides a method of broadcasting a voice channel allocation for multicast broadcast multicast service, comprising the steps of:

如果网络侧基站子系统在建立小区的组播广播信道时失败,则向该小区中需要加入该组播广播信道的移动台发送信道分配失败消息,其中携带该移动台可用的相邻小区的组播广播信道信息; If the network side fails to establish the base station subsystem the multicast broadcast channel in a cell, the cell is required to join the multicast broadcast channel, the mobile station sends a channel assignment failure message carrying the mobile station to the neighboring cells available for a group multicast broadcast channel information;

所述移动台收到所述信道分配失败消息后,根据所述相邻小区的组播广播信道信息,加入指定的相邻小区的组播广播信道。 After the mobile station receives the channel allocation failure message, the multicast broadcast channel in accordance with the multicast broadcast channel information of the neighbor cell, to the specified neighboring cell.

其中,还包含以下步骤:所述移动台检测相邻小区的信号,并向所述基站子系统上报测量报告消 Wherein, further comprising the steps of: signal detection cell adjacent to the mobile station, the base station subsystem to eliminate measurement report

息,其中携带所检测的相邻小区的信息; Information, wherein the information carried in the neighboring cells detected;

所迷基站子系统从所述移动台可用的相邻小区中选择一个,所述相邻小区建立有所述组播广播信道,将该相邻小区的组播广播信道信息携带在所述信道分配失败消息中发送给该移动台,其中,根据该移动台上报的测量报告消息中的相邻小区的信息决定该移动台可用的相邻小区。 The fan base station subsystem mobile station selects one of said available neighboring cells, the neighbor of the cell to establish a multicast broadcast channel, the neighboring cell information is carried in the multicast broadcast channel in the channel assignment failure message sent to the mobile station, wherein the mobile station determines the available neighboring cell information of the adjacent cell according to a measurement report message reported by the mobile station is.

此外在所述方法中,所述测量报告消息中携带N个相邻小区的信息,并根据这些小区的信号质量依次排列,其中N为非负整数。 Further, in the method, the measurement report message carrying information of the N neighboring cells, and these are sequentially arranged according to signal quality of the cell, where N is a non-negative integer.

此外在所述方法中,还包含以下步骤: Further in the method, further comprising the step of:

如果所述移动台可用的相邻小区至少有两个,且所述相邻小区建立有所述组播广播信道,则根据该移动台上报的测量报告消息中的相邻小区的信息, 选择信号质量最优的相邻小区,将该相邻小区的组播广播信道信息携带在所 Neighboring cell if the mobile station has available at least two, and the neighboring cells establish the multicast broadcast channel in accordance with the information of the adjacent cell measurement report message reported by the mobile station, select signal best quality neighbor cell, the neighbor cell information is carried in the multicast broadcast channel in the

述信道分配失败消息中发送给所述移动台。 Said channel assignment failure message to the mobile station. 此外在所述方法中,还包含以下步骤: Further in the method, further comprising the step of:

如果所述移动台可用的相邻小区为零个,则所述基站子系统向该移动台发送所述信道分配失败消息,其中未携带组播广播信道信息; If the neighboring cell a mobile station is available is zero, then the base station subsystem transmits the channel assignment failure message to the mobile station, which does not carry the information of the multicast broadcast channel;

所述移动台根据收到的所述信道分配失败消息,转入空闲状态。 Allocation failure message to the mobile station according to the channel received, into an idle state.

此外在所述方法中,如果所述测量报告消息中携带零个相邻小区的信息,则所述移动台可用的相邻小区为零个。 Further, in the method, if the measurement report message carrying information of an adjacent cell zero, then the mobile station neighbor cell available for a zero.

此外在所述方法中,如果所述测量报告消息中携带一个或多个相邻小区的信息,并且这些相邻小区均在本次语音组播广播业务的组播区域之外,则所述移动台可用的相邻小区为零个。 Further, in the method, if the measurement report message carries information of the one or more adjacent cells and the adjacent cells are outside of this voice multicast multicast broadcast service area, the mobile It sets a zero available neighboring cells.

此外在所述方法中,如果所述移动台可用的一个或多个相邻小区均在建立所述组播广播信道时失败,则所述移动台可用的相邻小区为零个。 Further, in the method, if the one mobile station or more adjacent available cells have failed in establishing the multicast broadcast channel, then the mobile station neighbor cell available for a zero. 此外在所述方法中,还包含以下步骤: Further in the method, further comprising the step of:

当所述语音组播广播业务发起后,所述基站子系统在所述组播区域中周期性广播组播通知消息,其中未携带组播广播信道信息; When the voice multicast broadcast service initiated, the base station subsystem periodically broadcast multicast notification message in the multicast area, which does not carry the information of the multicast broadcast channel;

所述移动台接收到所述组播通知消息后,向所述基站子系统返回组播通知响应消息; After the mobile station receives the multicast notification message, the multicast notification response message returned to the base station subsystem;

所述基站子系统根据收到的所述组播通知响应消息,建立所述移动台当前小区的组播广播信道。 The base station subsystem in response to the received multicast message according to the notification, the mobile station is currently establishing the multicast cell broadcast channel.

通过比较可以发现,本发明的技术方案与现有技术的主要区别在于,在VGCS/VBS业务中BSS建立小区的组播广播信道失败的情况下,向该小区中的需要加入该业务的MS发送信道分配失败消息,其中携带该MS可用的相邻小区的组播广播信道信息,该MS则根据相邻小区的组播广播信道信息, 加入指定的相邻小区的组播广播信道。 By comparison we found that the main difference between the aspect of the present invention and the prior art in that, in the VGCS / VBS business establishment BSS case the multicast broadcast channel of a cell failure, the need to add to the cell of the MS sends the service a channel allocation failure message carrying the multicast broadcast channel information of the neighboring cells available for the MS, the MS according to the neighboring cell information of the multicast broadcast channel, a multicast broadcast channel is added to the specified neighboring cell. 这样,在BSS建立小区的组播广播信道失败时,MS可以尽可能地通过相邻小区的组播广播信道加入VGCS/VBS 业务,提高了用户体验。 Thus, when establishing the multicast broadcast channel in a cell fails BSS, MS may be added VGCS / VBS multicast traffic through the adjacent cells broadcast channel as much as possible, to improve the user experience.

附图说明 BRIEF DESCRIPTION

图1是根据本发明第一实施方式的VGCS/VBS业务中组播广播信道分配方法流程图; FIG 1 is a flowchart of a broadcast channel allocation method according to a first embodiment VGCS embodiment of the present invention / VBS multicast service;

图2是根据本发明第二实施方式的VGCS/VBS业务中组播广播信道分配方法流程图。 FIG 2 is a flowchart of a broadcast channel allocation method according to a second embodiment VGCS embodiment of the present invention / VBS multicast service. 具体实施方式 detailed description

为使本发明的目的、技术方案和优点更加清楚,下面将结合附图对本发明作进一步地详细描迷。 To make the objectives, technical solutions, and advantages of the invention more clearly, following with reference to the present invention will be further described in detail lost.

本发明在BSS的组播广播信道分配失败时,在条件允许的情况下,BSS 可以将MS相邻小区的同一组播的组播广播信道信息通知给MS,从而MS 可以根据该信息加入到相邻小区的组播广播信道中,进行VGCS/VBS业务。 A multicast broadcast channel information according to the present invention, when the multicast broadcast channel allocation BSS fails, in a case where conditions permit, the neighboring BSS MS may be the same multicast cell is notified to the MS, so the MS may be added to the basis of the phase information multicast neighbor cell broadcast channel, a VGCS / VBS service. 其中,条件允许是指MS的有一个或多个可用的相邻小区并且至少有一个相邻小区建立了该组播的组播广播信道。 Wherein, it refers to conditions that permit the MS has one or more available neighboring cells and at least one adjacent cell to establish the multicast multicast broadcast channel. 可用的相邻小区是指该相邻小区的信号强度满足该MS的基本需求。 Available neighboring cell refers to a signal strength of the neighbor cell meet the basic needs of the MS.

本发明第一实施方式的VGCS/VBS业务中组播广播信道分配方法如图1 所示。 VGCS a first embodiment of the present invention embodiment / VBS broadcast multicast service channel assignment method as shown in FIG.

在步骤101中,当VGCS/VBS业务发起后,BSS在组播区域中的NCH 信道上周期性广播组播通知消息,由于还未建立组播广播信道,因此在该组播通知消息中未携带组播广播信道信息。 In step 101, when the VGCS / VBS for initiating a service, BSS NCH periodically broadcast multicast channels in a multicast area notification message, since the multicast broadcast channel has not been established, thus notification message does not carry the multicast a multicast broadcast channel information.

在步骤102中,当组播区域内的小区A中的MS接收到组播通知消息后, 如果该MS为该组播组的成员,则向BSS返回组播通知响应消息。 In step 102, when the cell A in the multicast area of ​​the MS receives the multicast notification message, if a member of the multicast group of the MS, the BSS returns to the multicast notification response message.

在步骤103中,BSS根据收到的组播通知响应消息,建立MS当前小区的组播广播信道,如果建立组播广播信道成功,则根据现有技术,向MS返回携带该组播广播信道信息的消息,MS根据该消息加入该小区的组播广播信道;如果因为一些原因,例如当前小区没有空闲的TCH资源,使得建立组播广播信道失败,则进入步骤104。 In step 103, BSS multicast notification response message is received, the MS establishing a multicast broadcast channel current cell, if the broadcast channel to establish a multicast channel successfully, then according to the prior art, return to the multicast broadcast channel carries the information to the MS message, the MS joins a multicast message based on the broadcast channel of the cell; If for some reason, such as the current cell is not idle TCH resource, so that the establishment of the multicast broadcast channel fails, the process proceeds to step 104.

在步骤104中,根据现有技术,MS会检测相邻小区的信号,并向BSS 周期性上报测量报告(measurementreport)消息,其中携带所检测的N (N 为非负整数)个相邻小区的信息,并根据这些小区的信号质量依次排列。 In step 104, according to the prior art, the MS detects an adjacent cell signal, and to periodically report measurement report BSS (MeasurementReport) message carrying the detected N (N is a nonnegative integer) of the adjacent cells information, and sequentially arranged according to signal quality of these cells. one

般地,每480毫秒MS上报一次测量报告消息。 Camel, once every 480 milliseconds MS reports the measurement report message. 在步骤105中,当BSS建立小区的组播广播信道失败时,BSS根才居该MS上报的测量报告消息中的相邻小区的信息决定该MS可用的相邻小区。 In step 105, when the multicast broadcast channel established BSS cell fails, BSS Gencai ranking information of the neighboring cell measurement report message reported by the MS in the MS determines the available neighboring cells.

如果MS可用并已建有组播广播信道的相邻小区至少有两个,则BSS根据该MS上报的测量报告消息中的相邻小区的信息,选择一个信号质量最优的相邻小区。 If the MS has available and the multicast broadcast channel to at least two neighboring cells, the BSS according to the information of the adjacent cell of the measurement report message reported by the MS selects an optimal signal quality of a neighboring cell. 进入步骤106。 Proceeds to step 106.

在步骤106中,BSS向该MS发送信道分配失败消息,其中携带BSS所选择的最优的相邻小区的组播广播信道信息。 In step 106, BSS sends a channel allocation failure message to the MS, the BSS carries the multicast chooses the best neighbor cell broadcast channel information. 另外,这里所说的信道分配失败消息也可以是现有4支术的channel release (信道释放)消息。 Further, here the channel assignment failure message may be a conventional four surgery channel release (channel release) message.

在步骤107中,MS收到信道分配失败消息后,根据该消息中的相邻小区的组播广播信道信息,监听并加入指定的相邻小区的组播广播信道,从而可以接收相应的VGCS/VBS业务。 After step 107, MS channel assignment failure message is received, the multicast broadcast channel in accordance with information of the neighboring cells in the message, the listener and adding the multicast broadcast channel specified neighboring cell, so as to receive a respective VGCS / VBS business. 这样,尽管BSS建立小区的组播广播信道失败,MS还是可以通过相邻小区的组播广播信道加入VGCS/VBS业务, 从而提高了用户体验。 Thus, although the establishment of the multicast broadcast channel BSS cell fails, the MS may be added or a VGCS / VBS multicast traffic through the adjacent cells broadcast channel, thereby improving the user experience.

本发明第二实施方式的VGCS/VBS业务中组播广播信道分配方法如图2 所示。 VGCS a second embodiment of the present invention embodiment / VBS service in the multicast broadcast channel allocation method shown in FIG.

步骤201到步骤204分别与步骤101到步骤104相类似,此处不再赘述。 Step 201 to step 204 and step 101 are respectively similar to step 104, it will not be repeated here.

在步骤205中,当BSS建立小区的组播广播信道失败时,BSS从MS可用并已建立组播广播信道的相邻小区中选择一个,其中,根据该MS上报的测量报告消息中的相邻小区的信息决定该MS可用的相邻小区。 In step 205 the neighboring cells, BSS established when the multicast broadcast channel in the cell fails, BSS available and established the multicast broadcast channel selected from a MS, wherein adjacent measurement report message reported by the MS in accordance with determining the information cell of the MS available neighboring cells.

如果MS可用并已建立组播广播信道的相邻小区为零个,则进入步骤206。 If the MS has been established and is available neighboring cells the multicast broadcast channel number is zero, the process proceeds to step 206. 具体地说,有如下三种情况: Specifically, the following three cases:

如果测量报告消息中携带零个相邻小区的信息,则MS可用的相邻小区 If the zero carry the information of the neighboring cell measurement report message, the MS available neighboring cells

为零个; A is zero;

如果测量报告消息中携带一个或多个相邻小区的信息,并且这些相邻小区均在本次VGCS/VBS业务的组播区域之外,则MS可用的相邻小区为零个; If the measurement report message carrying information of the one or more adjacent cells and the adjacent cells are in the multicast area outside this VGCS / VBS services, the neighboring cells available for a MS is zero;

如果MS可用的一个或多个相邻小区均在建立组播广播信道时失败,例如,该MS可用的相邻小区有两个,但这两个小区的均由于没有空闲的TCH 资源导致建立组播广播信道失败,则MS可用并已建立组播广播信道的相邻小区为零个。 If the MS available one or more neighboring cells have failed in establishing the multicast broadcast channel, for example, the MS has two available neighboring cells, but since the two cells are no free resources TCH lead to the establishment of the group multicast broadcast channel fails, the MS neighbor cell is available and the multicast broadcast channel to establish a zero.

在步骤206中,BSS向该MS发送信道分配失败消息,其中未携带组播广播信道信息。 In step 206, BSS sends a channel assignment failure message to the MS, which do not carry the multicast broadcast channel information.

在步骤207中,MS根据收到的信道分配失败消息,由于没有组播广播信道信息,MS转入空闲状态。 In step 207, MS according to a channel allocation failure message is received, since no multicast broadcast channel information, the MS proceeds to the idle state.

根据上述实施方式,本领域普通技术人员容易理解,采用本发明方法, 可以最大程度的利用MS可用的各个小区组播广播信道资源,使得网络侧可以尽可能地为MS提供VGCS/VBS业务支持,提高了用户体验。 According to this embodiment, those of ordinary skill in the art readily appreciate that the method of the present invention, MS may maximize the use of available multicast respective cell broadcast channel resources so that the network side may provide VGCS / VBS MS possible operational support, improve the user experience.

虽然通过参照本发明的某些优选实施方式,已经对本发明进行了图示和描述,但本领域的普通技术人员应该明白,可以在形式上和细节上对其作各种改变,而不偏离本发明的精神和范围。 While the invention has been shown and described with reference to certain preferred embodiments of the present invention, but those of ordinary skill in the art should be understood that various changes may be made thereto in form and detail without departing from the present the spirit and scope of the invention.

Claims (9)

  1. 1.一种语音组播广播业务中组播广播信道分配方法,其特征在于,包含以下步骤: 如果网络侧基站子系统在建立小区的组播广播信道时失败,则向该小区中需要加入该组播广播信道的移动台发送信道分配失败消息,其中携带该移动台可用的相邻小区的组播广播信道信息; 所述移动台收到所述信道分配失败消息后,根据所述相邻小区的组播广播信道信息,加入指定的相邻小区的组播广播信道。 Broadcast channel allocation method for a multicast broadcast service in a multicast voice, characterized by comprising the steps of: the network side fails if the base station subsystem to establish the multicast broadcast channel in the cell, the cell is required to join the the multicast broadcast channel in the mobile station sends a channel assignment failure message carrying the multicast broadcast channel information of an adjacent cell of the mobile station is available; after the mobile station receives the channel assignment failure message according to the neighboring cell a multicast broadcast channel information, to the specified neighboring cell of the multicast broadcast channel.
  2. 2. 根据权利要求1所述的语音组播广播业务中组播广播信道分配方法, 其特征在于,还包含以下步骤:所述移动台检测相邻小区的信号,并向所述基站子系统上报测量报告消息,其中携带所检测的相邻小区的信息;所述基站子系统从所述移动台可用的相邻小区中选择一个,所述相邻小区建立有所述组播广播信道,将该相邻小区的组播广播信道信息携带在所述信道分配失败消息中发送给该移动台,其中,根据该移动台上报的测量报告消息中的相邻小区的信息决定该移动台可用的相邻小区。 The broadcast channel allocation method according to the voice BCMCS multicast claimed in claim 1, characterized by further comprising the steps of: signal detection cell adjacent to the mobile station, reporting to the base station subsystem information measurement report message, which carries the detected neighbor cell; the base station subsystem to select a neighboring cell from the mobile station is available, the establishment of a neighboring cell of the multicast broadcast channel, and the neighboring cells multicast broadcast channel information is carried in the channel allocation failure message sent to the mobile station, wherein the mobile station determines the available information of the adjacent cell according to a measurement report message reported by the mobile station in the adjacent district.
  3. 3. 根据权利要求2所述的语音组播广播业务中组播广播信道分配方法, 其特征在于,所述测量报告消息中携带N个相邻小区的信息,并根据这些小区的信号质量依次排列,其中N为非负整数。 The broadcast channel allocation method according to the voice BCMCS multicast claimed in claim 2, wherein the measurement report message carrying information of the N neighboring cells, and are sequentially arranged according to signal quality of these cells wherein N is a non-negative integer.
  4. 4. 根据权利要求3所述的语音组播广播业务中组播广播信道分配方法, 其特征在于,还包含以下步骤:如果所述移动台可用的相邻小区至少有两个,且所述相邻小区建立有所述组播广播信道,则根据该移动台上报的测量报告消息中的相邻小区的信息,选择信号质量最优的相邻小区,将该相邻小区的组播广播信道信息携带在所述信道分配失败消息中发送给所述移动台。 The broadcast channel allocation method according to the voice BCMCS multicast claimed in claim 3, wherein, further comprising the step of: if the mobile station is available neighboring cell having at least two, and said phase neighbor cells establish the multicast broadcast channel in accordance with the information of the adjacent cell measurement report message reported by the mobile station, select the best signal quality of the neighboring cell, the multicast broadcast channel information of the neighbor cell carrying the message to the mobile station in the channel allocation failure.
  5. 5. 根据权利要求3所述的语音组播广播业务中组播广播信道分配方法, 其特征在于,还包含以下步骤:如果所述移动台可用的相邻小区为零个,所述相邻小区建立有所述组播广播信道,则所述基站子系统向该移动台发送所述信道分配失败消息,其中未携带组播广播信道信息;所述移动台根据收到的所述信道分配失败消息,转入空闲状态。 The broadcast channel allocation method according to the voice BCMCS multicast claimed in claim 3, wherein, further comprising the step of: if the mobile station is available neighboring cell a zero, the neighboring cells establish the multicast broadcast channel, by the base station subsystem allocates a failure message to the mobile station transmits the channel, which does not carry the information of the multicast broadcast channel; allocation failure message to the mobile station based on the received channel , into an idle state.
  6. 6. 根据权利要求5所述的语音组播广播业务中组播广播信道分配方法, 其特征在于,如果所述测量报告消息中携带零个相邻小区的信息,则所述移动台可用的相邻小区为零个。 The voice broadcast channel allocation method of claim 5 BCMCS multicast claim, wherein, if the measurement report message carrying information of an adjacent cell zero, the station is available with the mobile a zero neighbor cells.
  7. 7. 根据权利要求5所述的语音组播广播业务中组播广播信道分配方法, 其特征在于,如果所述测量报告消息中携带一个或多个相邻小区的信息,并且这些相邻小区均在本次语音组播广播业务的组播区域之外,则所述移动台可用的相邻小区为零个。 The voice broadcast channel allocation method of claim 5 BCMCS multicast claim, wherein, if the measurement report message carries information of the one or more adjacent cells and the adjacent cells are in addition to that the voice multicast multicast broadcast service area, the mobile station an available neighboring cells to zero.
  8. 8. 根据权利要求5所述的语音组播广播业务中组播广播信道分配方法, 其特征在于,如果所述移动台可用的一个或多个相邻小区均在建立所述组播广播信道时失败,则所述移动台可用的相邻小区为零个。 The voice broadcast channel allocation method of claim 5 BCMCS multicast claim, wherein, if the mobile station is available to one or more neighboring cells are established when the multicast broadcast channel fails, the mobile station an available neighboring cells to zero.
  9. 9. 根据权利要求1至8中任一项所述的语音组播广播业务中组播广播信道分配方法,其特征在于,还包含以下步骤:当所述语音组播广播业务发起后,所述基站子系统在所述组播区域中周期性广播组播通知消息,其中未携带组播广播信道信息;所述移动台接收到所述组播通知消息后,向所述基站子系统返回组播通知响应消息;所述基站子系统根据收到的所述组播通知响应消息,建立所述移动台当前小区的组播广播信道' 9. The method of allocating broadcast channel voice multicast broadcast service to any one of claims 1 to claim 8, multicast, characterized in that, further comprising the step of: when the voice multicast broadcast service to initiate the the base station subsystem broadcast multicast notification message periodically in the multicast area, which does not carry the information of the multicast broadcast channel; said mobile station after receiving the multicast notification message, returns to the multicast base station subsystem notification response message; the base station subsystem in response to the received multicast message according to the notification, the mobile station is currently establishing the multicast cell broadcast channel '
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