CN100446584C - Method and system for releasing mobile switching centre resource - Google Patents

Method and system for releasing mobile switching centre resource Download PDF

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Publication number
CN100446584C
CN100446584C CN 200610033397 CN200610033397A CN100446584C CN 100446584 C CN100446584 C CN 100446584C CN 200610033397 CN200610033397 CN 200610033397 CN 200610033397 A CN200610033397 A CN 200610033397A CN 100446584 C CN100446584 C CN 100446584C
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switching center
mobile switching
resource
verification
resources
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CN 200610033397
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Chinese (zh)
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CN1878346A (en )
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杨志东
砾 蒋
邱学海
品 陈
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华为技术有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATIONS NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATIONS NETWORKS
    • H04W36/00Handoff or reselection arrangements

Abstract

本发明涉及一种释放移动交换中心资源的方法,包括以下步骤:(a)当移动台在第一移动交换中心达到切换稳态时,第一移动交换中心启动切换稳态定时器;(b)所述第一移动交换中心在切换稳态定时器超时后启动资源核查,所述资源为第二移动交换中心的资源;(c)若资源核查失败,则所述第一移动交换中心释放第一移动交换中心的相关资源。 The present invention relates to a process for releasing resources in the mobile switching center, comprising the steps of: (a) when the mobile station is switched a first mobile switching center reaches a steady state, the first mobile switching center shot timer switch starts; (b) the first mobile switching center after the handover start resource verification steady state timer expires, the resource is a resource of a second mobile switching center; (c) if the resource verification fails, then the first release of the first mobile switching center Related resources mobile switching center. 本发明还提供一种对应的释放移动交换中心资源的系统。 The present invention also provides a system release of the mobile switching center to a corresponding resource. 本发明通过局间资源核查,使得在局间切换时能够正常释放MSC的相关资源,提高了资源的使用率。 The present invention interoffice resource verification, enabling a normal release associated resources when switching between the MSC Bureau improve the utilization of resources.

Description

释放移动交换中心资源的方法及系统技术领域本发明涉及通讯领域,更具体地说,涉及一种释放移动交换中心资源的方法及系统。 The method of releasing a mobile switching center resources TECHNICAL FIELD The present invention relates to communication systems, and more particularly, to a method and system for releasing resources in the mobile switching center. 背景技术移动用户在进行数据业务过程中可能由于位置的变化引发局间切换,该切换如图1所示,其具体的切换和拆线流程如下:第一移动交换中心(Mobile Services Switching Center, MSC)在为移动台进行数据服务过程中发现移动台需要切换到第二MSC时,向第二MSC发起切换请求消息(FACDIR2)。 BACKGROUND Mobile data service user performing the process may change in position due to the inter-office handover initiation, the switch shown in Figure 1, the specific handoff and disconnect procedure is as follows: the first mobile switching center (Mobile Services Switching Center, MSC during) the process of data services to mobile station found in the mobile station needs to switch to a second MSC, it initiates a handover request message to the second MSC (FACDIR2). 第二MSC收到切换请求消息后,为移动台分配无线信道和地面电路,并在分配成功后向第一MSC返回切换响应消息(facdir2)。 After the second MSC handover request message is received, radio channel allocation and mobile ground station circuit, and returns a handover response message (FACDIR2) assigned to the first MSC after successful. 切换成功后,第二MSC向第一MSC发送切换完成消息(MSONCH)。 After a successful handover, the first MSC to the second MSC transmits a handover complete message (MSONCH). 移动台切换完成后,切换方的移动台发起拆线请求消息,第二MSC向第一MSC发送拆线请求消息(DROPSERV),第一MSC收到拆线请求消息后,释放相关的资源,向第二MSC发送拆线响应消息(dropserv)。 After the completion of the handover the mobile station, the mobile station initiates the handover party disconnect request message, the second message requesting MSC (DROPSERV) transmits to the first MSC disconnects the first MSC receives the clear request message, releasing relevant resources, the The second MSC transmits a response message disconnect (dropserv). 第二MSC收到拆线响应消息后释放相关的资源。 The second MSC received stitches after the release of resources associated with the response message. 但是某些情况(如局间链路闪断等)将导致局间拆线请求消息丢失,从而第一MSC由于没有收到拆线请求消息而保留已经建立起的资源。 However, in some cases (e.g., FLASH interoffice links, etc.) will result in the loss of interoffice clear request message to the first MSC disconnect request message is not received due to the reserved resources have been established. 对于第一MSC,其由于没有收到拆线请求消息,认为移动用户的通话仍在继续,不会释放当前已经建立的资源。 For the first MSC, which is the absence of clear request message is received, that the mobile user's call continues, it does not release the resources currently established. 由于VLR (拜访位置寄存器,VLR)中的移动用户状态一直处于通话状态,无法发起再发起呼叫,这必然会影响到移动用户的话单,也将导致第一MSC的资源永久性的占用。 As the mobile user status VLR (Visitor Location Register, VLR) in the call has been in a state, can not initiate another call, this is bound to affect the user's mobile phone bill will also lead to permanent occupancy of the first MSC resources. 在<< TIA/EIA-41-D >>里对TDM语音切换局间拆线消息丢失情况已经有相应的处理。 In << TIA / EIA-41-D >> of the disconnect message is lost in between TDM voice switch Bureau case has a corresponding process. 如果MSC发起拆线(FACREL)后没有收到拆线响应消息(facrel),则会重发拆线消息,重发到一定次数后还是没有收到拆线响应消息的话就会进行复位电路的操作,具体请参考《丁1^£认-41-0〉〉中的5.2.5.1章节。 If the MSC initiates disconnection response message is not received (facrel) stitches (FACREL), it resends a disconnect message, after a certain number of retransmissions to disconnect response message is not received, then the operation will reset circuit For details, please refer to "Ding 1 ^ £ recognize section 5.2.5.1 of -41-0 >>. 但上述文件没有从根本上解决拆线消息丢失的问题,因为对于接收拆线消息的MSC,只有在收到对局的拆线消息后才能释放资源,其完全依赖于对局的消息。 However, the above document does not solve the disconnect message from the fundamental problem of lost, because the disconnect message is received for the MSC, only after receiving a disconnect message game to release resources, which depends entirely on the game news. 如果一直无法收到对局重发的拆线消息,则资源还是无法释放。 If you have been unable to receive stitches message retransmission game, the resource is still not released. 发明内容本发明要解决的技术问题在于,针对现有技术的上述局间切换时由于局间释放消息丢失使得资源无法释放的缺陷,提供一种释放移动交换中心资源的方法及系统。 SUMMARY OF THE INVENTION The technical problem to be solved is that, since the release message is lost interoffice resources such defects can not be released, there is provided a method and system for releasing resources in the mobile switching center for switching between the above-described prior art bureau. 本发明解决其技术问题所采用的技术方案是:构造一种释放移动交换中心资源的方法,包括以下步骤:(a) 当移动台在第一移动交换中心达到切换稳态时,第一移动交换中心启动切换稳态定时器;(b) 所述第一移动交换中心在切换稳态定时器超时后启动资源核査,所述资源为第二移动交换中心的资源;(c) 若资源核査失败,则所述第一移动交换中心释放第一移动交换中心的相关资源。 The present invention solves the technical problem using the technical solution: A method for a mobile switching center configured to release resources, comprising the steps of: (a) when the mobile station is switched a first mobile switching center reaches a steady state, the first mobile switching shot timer starts switching center; (b) the first mobile switching center after the handover start resource verification steady state timer expires, the resource is a resource of a second mobile switching center; (c) if the verification resources fails, the first mobile switching center of the first free resources associated with the mobile switching center. 在本发明所述的释放移动交换中心资源的方法中,所述步骤(b)包括: (bl)所述第一移动交换中心在切换稳态定时器超时后向第二移动交换中心发送资源核査请求;(b2)所述第一移动交换中心启动资源核查定时器。 In the process of releasing the resources of the mobile switching center according to the present invention, the step (b) comprises: (bl) a mobile switching center of the first core resource to the second mobile switching center a steady state after the switching timer expires check request; (B2) of the first mobile switching center resource verification timer starts. 在本发明所述的释放移动交换中心资源的方法中,所述步骤(b)中第一移动交换中心向第二移动交换中心发送的资源核查请求中包括有进行切换的移动台的标识或局间切换电路号。 In the process of releasing the resources of the mobile switching center according to the present invention, the resource request for the verification of step (b) is a first mobile switching center transmits to the second mobile switching center comprises a mobile station identity or bureau for switching switch between circuit number. 在本发明所述的释放移动交换中心资源的方法中,所述步骤(C)包括:(cl)所述第二移动交换中心接收到来自第一移动交换中心的资源核査请求时,若移动台在第二移动交换中心的切换状态处于稳态,则向第一移动交换中心返回资源核査成功响应消息;若移动台在第二移动交换中心的切换状态处于、非稳态,则向第一移动交换中心返回资源核査失败响应消息;(c2)若所述第一移动交换中心未接收到来自第二移动交换中心的资源核查成功响应消息,则释放第一移动交换中心的相关资源。 In the process of releasing the resources of the mobile switching center according to the present invention, the step (C) comprises: said second mobile switching center receives (Cl) to verify the resource request from the first mobile switching center, if the mobile in the second switching state of the mobile station switching center in a steady state, the return to the first mobile switching center resources verification success response message; if the mobile station is in a handover state of the second mobile switching center, a non-steady-state, then to the second a mobile switching center returns a resource response message verification fails; (C2) if the first mobile switching center does not receive the resource from the second mobile switching center verification success response message is a first free resources associated with the mobile switching center. 在本发明所述的释放移动交换中心资源的方法中,所述步骤(c2)中还包括若所述第一移动交换中心接收到来自第二移动交换中心的资源核查成功响应消息,则返回步骤(a)。 In the process of releasing the resources of the mobile switching center according to the present invention, the step (c2) further comprises a first mobile switching center if the resource is received from the second mobile switching center to verify the success response message, it returns to step (a). 在本发明所述的释放移动交换中心资源的方法中,所述步骤(c2)中所述未收到资源核查成功响应消息包括资源核査定时器超时和收到资源核查失败响应消息。 In the process of releasing the resources of the mobile switching center according to the present invention, the step (c2) is not received in the resource verification success response message comprising resources and receive resources verification timer expires verification failure response message. 在本发明所述的释放移动交换中心资源的方法中,还包括当移动台在第二移动交换中心达到切换稳态时,第二移动交换中心启动第二切换稳态定时器, 所述第二移动交换中心在第二切换稳态定时器超时后启动资源核査的流程。 In the process of releasing the resources of the mobile switching center according to the present invention, when the mobile station further comprises a second mobile switching center to reach the steady state switching, the mobile switching center to initiate the second-shot second switch, the second the mobile switching center resources to start the process of verification of the steady-state after the second switch timer expires. 本发明还提供一种释放移动交换中心资源的系统,包括移动台和至少两个移动交换中心,所述移动交换中心包括有进行切换和资源释放的切换模块,所述移动交换中心还包括有切换稳态定时器以及资源核査模块,所述资源核查模块在切换稳态定时器超时后进行对端移动交换中心的资源核査并在资源核査失败时指示切换模块释放本端移动交换中心的相关资源。 The present invention also provides a system for releasing resources in the mobile switching center, comprising at least two mobile stations and mobile switching center, said mobile switching center comprises a switching module and a resource release switch, said mobile switching center further comprises a switching shot timer module and a resource verification, verification of the resource modules in the handover-shot resource verification of the end of the mobile switching center of a timeout and instructs the local switching module is released at the mobile switching center resource verification failure related resources. 在本发明所述的释放移动交换中心资源的系统中,所述移动交换中心还包括有资源核查定时器,所述资源核査失败包括资源核査定时器超时和收到对端移动交换中心的资源核查失败响应消息。 A mobile switching center in the system of the present invention, the resource release, the mobile switching center further includes a timer verification of resources, the resource includes a resource verification fails verification timer expires and received from the peer mobile switching center resources verification failure response message. 在本发明所述的释放移动交换中心资源的系统中,所述资源核查模块通过向对端移动交换中心发送资源核査请求并根据返回的资源核查响应消息进行资源核查。 A mobile switching center in the system of the present invention, the resource release, the resources resource verification by the verification module to send the resource request to the verification terminal and the mobile switching center according to the response message returned by the resource verification. 在本发明所述的释放移动交换中心资源的系统中,所述移动交换中心还包括有资源核査定时器,所述资源核査模块在发送资源核查消息时启动资源核查定时器,并根据资源核査定时器是否超时判断资源核查是否成功。 A mobile switching center in the system of the present invention, the resource release, the mobile switching center further includes a timer resource verification, the verification module resource verification timer when start resource transmission resource verification message, according to the resource and checking whether the timer expires determine whether the resource verification was successful. 本发明的释放移动交换中心资源的方法及系统,通过局间资源核查,使得在局间切换时能够正常释放MSC的相关资源,提高了资源的使用率。 The mobile switching center resource release method and system of the present invention, the resource interoffice verification, enabling a normal release associated resources when switching between the MSC Bureau improve the utilization of resources. 附图说明下面将结合附图及实施例对本发明作进一步说明,附图中-图1是现有移动台局间切换的示意图;图2是本发明释放移动交换中心资源的方法的示意图;图3是本发明释放移动交换中心资源的系统中的移动交换中心的结构框图;图4是本发明释放移动交换中心资源方法的流程图;图5是本发明释放移动交换中心资源方法的资源核査流程图。 BRIEF DESCRIPTION OF THE DRAWINGS The preferred embodiments of the present invention will be further described in the drawings - FIG 1 is a schematic diagram of a mobile station between existing Bureau handover; FIG. 2 is a schematic diagram of the present invention is a method to release a mobile switching center resources; FIG. 3 is a block diagram of a mobile switching center MSC releases system resources of the present invention; FIG. 4 is a flowchart of the present invention, the mobile switching center resource release process; FIG. 5 is a mobile switching center according to the present invention, the release of resources, resource verifying method flow chart. 具体实施方式如图2所示,移动台开始从第一移动交换中心(Mobile Services Switching Center, MSC)切换到第二MSC,并处于切换稳态时,启动切换稳态定时器。 DETAILED DESCRIPTION As shown in FIG. 2, the mobile station starts switching from a first mobile switching center (Mobile Services Switching Center, MSC) to the MSC a second, and in the steady state switching, switching shot timer starts. 当切换完成,移动台再向第二MSC发起拆线请求消息给第一MSC。 When the handover is completed, the mobile station into the second MSC initiates disconnection request message to the first MSC. 若由于某种原因,上述拆线消息丢失而使第一MSC不能接收到拆线请求消息,从而第二MSC不能接收到来自第一MSC的拆线响应消息(或拆线响应消息丢失)。 If for some reason the loss of the disconnect message is not the first MSC receives the disconnect request message to the second MSC can not receive a disconnect response message from the first MSC (or disconnect response message is lost). 第二MSC等待拆线响应消息超时后,释放第二MSC上的相关资源。 After the disconnection response message to the second MSC waits for the timeout, the free resources associated with a second MSC. 第一MSC发现自己处于切换稳态一定时间后(切换稳态定时器超时), 向第二MSC发起资源核査请求消息并启动资源核查定时器。 The first MSC found themselves in a steady state after a certain time switch (switch-shot timeout), initiate a resource verification request message and starts a timer resource verification to the second MSC. 上述资源核査请求消息中包括有移动台的标识(Mobile Station ID)或局间切换电路号(Inter MSC Circuit ID)。 It said resource request message includes verification of identity between the mobile station (Mobile Station ID) number or local switching circuit (Inter MSC Circuit ID). 第二MSC收到来自第一MSC的资源核査请求消息后,如果移动台在第二MSC的切换状态处于稳态,则向第一MSC返回资源核查成功响应消息, 该消息中包括有核査成功标志;否则向第一MSC返回资源核查失败响应消息, 该消息中包括有核査失败标志。 Verification of resources received from the second MSC to the first MSC request message, if the mobile station is in a steady state of the second switch of the MSC, the MSC returns to the first resource in response to successful verification message, the message includes verification symbol of success; otherwise, returns to the first MSC resource verification failure response message, the message includes the verification failure flag. 第一MSC收到第二MSC的资源核查响应消息,如果资源核査成功,则不做任何操作(或者重启切换稳态定时器,从而等待一定时间后重新进行资源核査);如果资源核査失败,则释放第一MSC的相关资源。 The first MSC MSC receives a second message in response to verification of a resource, if the resource verification is successful, no operation (or restart switch-shot, so that after waiting a predetermined time to re-verification of resources); If the resource verification fails, the release of the first MSC related resources. 如果资源核査定时器超时,而第一MSC还没有收到来自第二MSC的资源核査响应消息,则释放第一MSC的相关资源。 If the resource verification timer expires, and the first MSC has not received verification from the second resource response message to the MSC, the MSC's first release related resources. 请参照图3所示,为实现上述操作,本发明中的移动交换中心需包括有切换模块34、切换稳态定时器31、资源核查模块32以及资源核査定时器33, 其中资源核査模块32分别连接到切换稳态定时器31和资源核査定时器33, 而切换模块34则连接到切换稳态定时器31和资源核査模块32。 Referring to FIG. 3, to achieve the above operation, in the present invention for an mobile switching center 34 comprises a switching module, the switching-shot 31, the resources 32 and resource verification module verifying the timer 33, wherein the resource verification module 32 are respectively connected to the switching-shot timer 31 and the timer 33 verification resources, switching module 34 is connected to the switching module 31 and resource verification shot timer 32. 切换模块34与现有系统中的切换模块类似,其用于在切换时向对端的移动交换中心发送切换请求消息,并在接收到对端的拆线请求消息后返回拆线响应消息及释放相关资源。 The switching module 34 is similar to the conventional switching system module for transmitting a request message to the mobile switching center to the side switch when switching, and returns after receiving the stitches of the disconnect request message in response to the end of the message and releases related resources . 切换稳态定时器31和资源核查定时器33用于计时,其分别由切换模块34和资源核査模块32触发。 Shot timer switch 31 and a timer 33 for timing verification of resources, which are triggered by the switching module 34 and resource verification module 32. 上述两个逻辑定时器可由两个物理计时器分别实现。 Both timers can be two logical timers are physically implemented. 此外,该切换稳态定时器31和资源核査定时器33也可由一个物理计时器实现,通过在不同阶段分别由切换模块34和资源核査模块32触发,从而实现不同的计时策略。 In addition, the handover-shot timer 31 and resource verification timer 33 may also be a physical implementation by triggering each at different stages by the switching module 34 and resource verification module 32, in order to achieve different timing strategies. 即在资源核查前由切换模块34控制,进行切换稳态计时; 而在资源核査阶段,由资源核査模块32控制,进行资源核查计时。 That is verified by the resource control before the switching module 34, the steady-state switching timing; and resource verification stage, verification module 32 controls the resources, the resources to verify timing. 资源核查模块32用于进行资源核査,其在切换稳态定时器31超时后向对端移动交换中心发送资源核査请求消息,并启动资源核査定时器33。 Resource verification module 32 for verifying a resource, which transmits a resource request message to the mobile switching center to the end 31 after verification of the switching-shot times out, the timer 33 and starts verification of resources. 资源核査模块32还用于接收来自对端移动交换中心的资源核査响应消息,并根据资源核査响应消息判断资源核查是否成功。 Resource verification module 32 is further configured to receive a resource from a peer verification response message the mobile switching center, resources and determines whether a response message according to the resource check being successful verification. 若资源核査失败(接收到资源核查失败响应消息或资源核査定时器33超时),则资源核查模块32发送信号到切换模块34,使切换模块34释放相关资源。 If the verification fails resources (receiving the resource response message or the resource verification fails verification timer 33 times out), the resource verification module 32 sends a signal 34 to the switching module, the switching module 34 release the resources. 图4为本发明释放移动交换中心资源方法的流程图。 FIG 4 is a flowchart of a method of resources the mobile switching center to release the present invention. 在本实施例中,假设移动台从第一MSC切换到第二MSC,其步骤如下:S41:移动台从第一MSC切换到第二MSC过程中,第一MSC启动切换稳态定时器31,切换稳态定时器31在移动台处于切换稳态时启动;S42:第一MSC若在预定时间内未接收到来自第二MSC的拆线请求消息(例如切换稳态定时器31超时),则该第一MSC启动资源核査,以检查第一MSC与第二MSC间的连接是否出现问题(例如局间链路闪断等);第一MSC判断资源核査是否失败(步骤S43),若资源核査失败,则释放第一MSC上的相关资源(步骤S44);若资源核查成功,则返回步骤S41。 In the present embodiment, it is assumed the mobile station switches from the first MSC to the second MSC, steps are as follows: S41: The mobile station is switched from the first MSC to the second MSC during a first start switch MSC-shot 31, shot timer 31 starts switching when switching the mobile station is in a steady state; S42: when not receiving the first MSC from the second MSC disconnect request message within a predetermined time (e.g., switching-shot 31 times out), the the first MSC to start the verification of resources to check if the first MSC issues (e.g. flash interoffice links, etc.) occurs and the connection between the second MSC; first MSC determines whether the resource verification fails (step S43,), if resource verification fails, then release related resources on the first MSC (step S44); if the resource verification is successful, return to step S41. 图5为本发明释放移动交换中心资源方法的资源核査流程图,其步骤如下:S51:在切换稳态定时器31超时的情况下,第一MSC向第二MSC发送资源核查请求消息,以检査第一MSC与第二MSC间的连接是否出现问题(例如局间链路闪断等);S52:启动资源核査定时器33,使其开始计时,上述的资源核査请求消息中包括有进行局间切换的移动台的标识(MSID)或局间切换电路号,其中对于数据业务,局间切换电路号为无效值,核査消息可以不以局间切换电路号为依据;S53:第一MSC判断是否接收到来自第二MSC的资源核査成功响应消息,即来自第二MSC的资源核查响应消息是否携带成功标志;若第一MSC接收到来自第二MSC的资源核查成功响应消息(即第二MSC 在接收到上述资源核查请求消息后,若此时移动台在第二MSC的切换状态处于稳态,则向第一MSC返回资源核查成功响应消息,该 5 a flowchart of resources in the resource verification method for a mobile switching center to release the present invention comprises the following steps: S51: in case of switching-shot 31 times out, the first MSC to the second MSC transmits a request message verification resources to check whether the first MSC issues (e.g. flash interoffice links, etc.) occurs and the connection between the second MSC; S52: start resource verification timer 33, it starts counting the resource request message includes verification It has identified the mobile station inter interoffice handover (the MSID) or local switching circuit number, wherein for data traffic between, interoffice switch circuit number is an invalid value, the verification message may not be in a number of inter-office based switching circuitry; S53: the first MSC determines whether the resource is received from the second MSC verification success response message, i.e., from the second MSC resource verification response message carrying the success flag; if the first verification of the resources from the MSC receives the success response message to the second MSC (i.e., the second MSC after receiving said resource request message verification, if the handover where the mobile station is in a steady state of the second MSC, the first MSC returns a resource to the verification success response message, the 息中携带有核查成功标志),则返回步骤S41。 Interest in carrying verification success flag), step S41 is returned. 若第一MSC收到来自第二MSC的资源核查失败响应消息(即第二MSC 在接收到上述资源核查请求消息后,若此时移动台在第二MSC的切换状态不处于稳态,则向第一MSC返回资源核查失败响应消息,该消息中携带有核査失败标志),则释放第一MSC上的相关资源(步骤S56)。 When the MSC receives a first resource from the second verification failure response message to the MSC (i.e., the second MSC after receiving said resource request message verification, if at this time the mobile station is not in the steady state of the second switch of the MSC is to the first MSC returns a resource verification failure response message that carries the verification failure flag), the free resources associated with the first MSC (step S56). 若第一MSC没有收到来自第二MSC的资源核査响应消息,则检査资源核查定时器33是否超时(步骤S55)。 If the resource does not receive the first MSC from the second MSC verification response message, the resource is checked to verify whether the timer 33 times out (step S55). 若资源核查定时器33超时,则执行步骤S56,释放第一MSC上的相关资源;若资源核査定时器33未超时,则返回步骤S53。 If the timer 33 times out resource verification is performed step S56, the first release resources on the MSC; resource verifying if the timer 33 does not time out, returns to step S53. 在第二MSC上同样具有资源核査能力。 On the second MSC also has a resource verification capabilities. 当移动台在第二MSC达到切换稳态时,第二MSC启动其上的第二切换稳态定时器。 When the mobile station reaches the second MSC handover steady state, the second MSC handover start second-shot thereon. 在第二切换稳态定时器超时后,第二MSC同第一MSC —样启动资源核査流程(如图4及图5所示)。 In the steady state the second switching timer expires, the first MSC with the second MSC - like start resource verification process (shown in FIG. 4 and FIG. 5). 以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到的变化或替换,都应涵盖在本发明的保护范围之内。 Above, the present invention is merely preferred specific embodiments, but the scope of the present invention is not limited thereto, any skilled in the art in the art within the scope of the invention disclosed can be easily thought of the changes or Alternatively, it shall fall within the protection scope of the present invention. 因此,本发明的保护范围应该以权利要求的保护范围为准。 Accordingly, the scope of the present invention should be defined by the scope of the claims.

Claims (11)

  1. 1、一种释放移动交换中心资源的方法,其特征在于,包括以下步骤: (a)当移动台在第一移动交换中心达到切换稳态时,第一移动交换中心启动切换稳态定时器; (b)所述第一移动交换中心在切换稳态定时器超时后启动资源核查,所述资源为第二移动交换中心的资源; (c)若资源核查失败,则所述第一移动交换中心释放第一移动交换中心的相关资源。 1. A method of releasing a mobile switching center resources, characterized by comprising the steps of: (a) when the mobile station in the first mobile switching center to reach steady-state switch, the first mobile switching center-shot start switch; (b) said first mobile switching center to initiate a steady state after the handover resource verification timer expires, the resource is a resource of a second mobile switching center; (c) if the resource verification fails, the first mobile switching center free resources associated with the first mobile switching center.
  2. 2、 根据权利要求1所述的释放移动交换中心资源的方法,其特征在于, 所述步骤(b)包括:(bl)所述第一移动交换中心在切换稳态定时器超时后向第二移动交换中心发送资源核査请求;(b2)所述第一移动交换中心启动资源核查定时器。 2, a mobile switching center according to the method of releasing resources according to claim 1, wherein said step (b) comprises: (bl) the first mobile switching center a steady state after the switching to the second timer expires. the mobile switching center sends a resource request verification; (B2) of the first mobile switching center resource verification timer starts.
  3. 3、 根据权利要求2所述的释放移动交换中心资源的方法,其特征在于, 所述步骤(b)中第一移动交换中心向第二移动交换中心发送的资源核査请求中包括有进fi^刀换的移动台的标识或局间切换电路号。 3, the mobile switching center resource release method according to claim 2, wherein said resource request verification step (b) is a first mobile switching center transmits to the second mobile switching center comprises an intake fi ^ knife exchange between a mobile station identifier or local switching circuit number.
  4. 4、 根据权利要求2所述的释放移动交换中心资源的方法,其特征在于, 所述步骤(c)包括:(cl)所述第二移动交换中心接收到来自第一移动交换中心的资源核査请求时,若移动台在第二移动交换中心的切换状态处于稳态,则向第一移动交换中心返回资源核査成功响应消息;若移动台在第二移动交换中心的切换状态处于非稳态,则向第一移动交换中心返回资源核査失败响应消息;(c2)若所述第一移动交换中心未接收到来自第二移动交换中心的资源核查成功响应消息,则释放第一移动交换中心的相关资源。 4. The method of claim release of resources a mobile switching center according to claim 2, wherein said step (c) comprises: (cl) the second mobile switching center core receives the resource from the first mobile switching center when the search request, if the mobile station in the handover state of the second mobile switching center in a steady state, the return to the first mobile switching center resources verification success response message; if the mobile station in the second switching state of the mobile switching center is unstable state, the first mobile switching center to return a failure response message verification resources; (C2) if the first mobile switching center does not receive the resource from the second mobile switching center to verify the success response message, then the release of the first mobile switching Related resource Center.
  5. 5、 根据权利要求4所述的释放移动交换中心资源的方法,其特征在于, 所述步骤(c2)中还包括若所述第一移动交换中心接收到来自第二移动交换中心的资源核查成功响应消息,则返回步骤(a)。 5. The method of claim release of resources the mobile switching center according to claim 4, wherein said step (c2) further comprises a first mobile switching center if the resource is received from the second mobile switching center verification success response message is returned to step (a).
  6. 6、 根据权利要求4所述的释放移动交换中心资源的方法,其特征在于, 所述步骤(c2)中所述未收到资源核查成功响应消息包括资源核查定时器超时和收到资源核查失败响应消息。 6, the mobile switching center according to the method of releasing resources according to claim 4, wherein said step (c2) is not received in the resource verification success response message comprising resources and receive resources verification timer expires verification failure response message.
  7. 7、 根据权利要求1所述的释放移动交换中心资源的方法,其特征在于, 还包括当移动台在第二移动交换中心达到切换稳态时,第二移动交换中心启动第二切换稳态定时器,所述第二移动交换中心在第二切换稳态定时器超时后启动资源核查的流程。 7. The method of releasing a mobile switching center resources according to claim 1, characterized in that, when the mobile station further comprises a second mobile switching center switch reaches a steady state, the second mobile switching center initiating a second timing of switching steady state , the second mobile switching center resources to start the verification process in the steady state after the second switching timer expires.
  8. 8、 一种释放移动交换中心资源的系统,包括移动台和至少两个移动交换中心,所述移动交换中心包括有进行切换和资源释放的切换模块,其特征在于, 所述移动交换中心还包括有切换稳态定时器以及资源核査模块,所述资源核查模块在切换稳态定时器超时后进行对端移动交换中心的资源核査并在资源核查失败时指示切换模块释放本端移动交换中心的相关资源。 8. A mobile system switching center to release resources, the switching center comprises a mobile station and at least two mobile switching center, said mobile switching comprises switching module and a resource release, wherein, said mobile switching center further comprises a switching-shot verification module and a resource, the resource verification module verifying the peer resources to the mobile switching center after the handover timer expires and steady state release of the module indicating switching of the local mobile switching center resource verification fails related resources.
  9. 9、 根据权利要求8所述的释放移动交换中心资源的系统,其特征在于, 所述移动交换中心还包括有资源核查定时器,所述资源核查失败包括资源核査定时器超时和收到对端移动交换中心的资源核査失败响应消息。 9, the mobile switching center according to claim resource release system according to claim 8, wherein, said mobile switching center further includes a timer resource verification, verification failure the resource includes a resource timer expires and verification of the received verification of the resources of the mobile switching center side failure response message.
  10. 10、 根据权利要求8所述的释放移动交换中心资源的系统,其特征在于, 所述资源核査模块通过向对端移动交换中心发送资源核查请求并根据返回的资源核査响应消息进行资源核查。 10, the mobile switching center according to claim resource release system according to claim 8, wherein said resource verification module verifying the resource request for verification to the transmission resource the mobile switching center and ends in accordance with the response message returned by the resource verification .
  11. 11、 根据权利要求IO所述的释放移动交换中心资源的系统,其特征在于, 所述移动交换中心还包括有资源核査定时器,所述资源核查模块在发送资源核査消息时启动资源核査定时器,并根据资源核査定时器是否超时判断资源核査是否成功。 11, according to claim IO release system resources of the mobile switching center, wherein the mobile switching center further includes a timer resource verification, verification of the resource modules at the start resource nuclear verification message transmission resource check the timer and resources to verify success, depending on whether the resource verification timer expires judgment.
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