CN101467399B - Method for updating unified access terminal identification and access terminal - Google Patents

Method for updating unified access terminal identification and access terminal Download PDF

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CN101467399B
CN101467399B CN2007800001163A CN200780000116A CN101467399B CN 101467399 B CN101467399 B CN 101467399B CN 2007800001163 A CN2007800001163 A CN 2007800001163A CN 200780000116 A CN200780000116 A CN 200780000116A CN 101467399 B CN101467399 B CN 101467399B
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subnet
access terminal
target
uati
uati update
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CN101467399A (en
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吕莎
陈顺林
宋友厉
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Beijing Wisdom Partner Technology Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/04—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration using triggered events
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/02—Inter-networking arrangements

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Abstract

The invention provides a method for communication and an access terminal (AT) in a wireless network having a plurality of subnets. The method comprises: determining, based upon movement of the access terminal in a dormant state to a target subnet from a source subnet, whether ColorCode of the source subnet matches the SecondaryColorCode of the target subnet; if the ColorCode of the source subnet does not match the secondaryColorCode of the target subnet, the access terminal initiating a Unicast Access Terminal Identifier (UATI) update request to the target subnet; if the ColorCode of the source subnet matches the secondaryColorCode of the target subnet, delaying the UATI update. The method and the system of the inventive embodiment reduce the delay needed by establishing the AT calling, and improve the connection capacity of the AT calling.

Description

更新统一接入终端标识的方法和接入终端Method for updating unified access terminal identification and access terminal

技术领域technical field

本发明涉及无线通信技术领域，具体来说，涉及到更新统一接入终端标识的方法和接入终端。The present invention relates to the technical field of wireless communication, and in particular, relates to a method for updating a unified access terminal identifier and an access terminal.

背景技术Background technique

在第三代合作组织(3GPP2)定义的高速率分组数据(HRPD)标准中，当休眠状态的接入终端(AT)从一个子网移动到另一个子网时，要求该接入终端发起更新其统一接入终端标识(UATI)和相应用户路由相关信息的请求。为了降低休眠状态的接入终端在子网间频繁移动所产生的UATI请求，3GPP2中的HRPD3.0协议提供了第二色码(SecondaryColorCode)功能。当休眠AT从源子网移动到目标子网时，如果该AT存储的色码(ColorCode)与目标子网的SecondaryColorCode相互匹配，则该AT不发起UATI请求。目标子网中的该AT处于空闲状态。In the High Rate Packet Data (HRPD) standard defined by the Third Generation Partnership Organization (3GPP2), a dormant access terminal (AT) is required to initiate an update when it moves from one subnet to another Its Uniform Access Terminal Identity (UATI) and corresponding user routing related information requests. In order to reduce the UATI request generated by the access terminal in the dormant state frequently moving between subnets, the HRPD3.0 protocol in 3GPP2 provides a secondary color code (SecondaryColorCode) function. When the dormant AT moves from the source subnet to the target subnet, if the color code (ColorCode) stored by the AT matches the SecondaryColorCode of the target subnet, the AT does not initiate a UATI request. The AT in the target subnet is idle.

从而，当休眠状态的AT移动进入目标子网时，如果在比较该AT存储的ColorCode与目标子网的SecondaryColorCode后，该AT不与目标子网建立连接，那么该源子网和该目标子网都不会直接知道该AT的位置。Therefore, when a dormant AT moves into the target subnet, if the AT does not establish a connection with the target subnet after comparing the ColorCode stored by the AT with the SecondaryColorCode of the target subnet, then the source subnet and the target subnet Neither will directly know the location of the AT.

当前的HRPD标准中，如果休眠状态的AT不与目标子网建立连接，AT会通过子网间的通信将该AT与目标子网相连接，源子网可以通过跨子网寻呼来呼叫该AT。In the current HRPD standard, if the dormant AT does not establish a connection with the target subnet, the AT will connect the AT to the target subnet through communication between subnets, and the source subnet can call the AT through cross-subnet paging. AT.

图1为HRPD子网间的信令示意图。AT100在源子网102中建立会话并保存会话信息。在源子网102的扇区参数(SectorParameters)消息中，ColorCode为7。目标子网104具有数值为7的SecondaryColorCode。因此，当休眠状态的AT100移动到目标子网104时，因为AT100存储的ColorCode与目标子网104的SecondaryColorCode相匹配，所以AT100不发起UATI请求。FIG. 1 is a schematic diagram of signaling between HRPD subnets. AT 100 establishes a session in source subnet 102 and saves session information. In the sector parameter (SectorParameters) message of the source subnet 102, the ColorCode is 7. Target subnetwork 104 has a SecondaryColorCode value of seven. Therefore, when the dormant AT 100 moves to the target subnet 104 , the AT 100 does not initiate a UATI request because the ColorCode stored by the AT 100 matches the SecondaryColorCode of the target subnet 104 .

当源子网102需要寻呼AT100时，会首先在源子网102内部进行寻呼。如果源子网102内部寻呼失败，源子网102会通过其与目标子网104间的通信得知AT100在目标子网104内。When the source subnet 102 needs to page the AT 100 , it will first perform paging inside the source subnet 102 . If the internal paging of the source subnet 102 fails, the source subnet 102 will know that the AT 100 is in the target subnet 104 through the communication between the source subnet 102 and the target subnet 104 .

由于目标子网104中没有AT100的会话信息，如果AT100需要与目标子网104建立连接，目标子网104可以通过子网间通信从源子网102中获得AT100的会话信息并建立连接。Since there is no session information of AT 100 in the target subnet 104, if AT 100 needs to establish a connection with the target subnet 104, the target subnet 104 can obtain the session information of AT 100 from the source subnet 102 through inter-subnet communication and establish a connection.

这样，利用SecondaryColorCode的特征，休眠状态的AT在一个子网和另一个子网间的来回移动不会更新UATI，并通过子网通信传送接入网(AN)和AT之间的信令。In this way, using the feature of SecondaryColorCode, the dormant AT will not update the UATI when it moves back and forth between one subnet and another subnet, and the signaling between the access network (AN) and the AT is transmitted through subnet communication.

当来自源子网的呼叫需要连接到AT时，由于该AT已经移动到了一个目标子网，所以源子网内部的寻呼不会成功。然后，将在该源子网和目标子网之间进行寻呼从而找到该AT。源子网内部的失败寻呼以及跨子网的寻呼必然带来更大的寻呼延时，甚至遗漏寻呼，因而产生较差的寻呼连接性能。When a call from a source subnet needs to be connected to an AT, paging inside the source subnet will not succeed because the AT has already moved to a target subnet. The AT will then be found by paging between the source and target subnets. Failed paging within the source subnet and paging across subnets will inevitably lead to greater paging delay, or even missed paging, thus resulting in poor paging connection performance.

当目标子网的该AT发起呼叫请求时，由于没有与该AT相关的会话信息，所以该目标子网必须从源子网中检索与该AT相关的信息。在该会话信息被传送到该目标子网后，该呼叫建立才能够继续进行，并且A8、A10和UATI信息才能得以更新。这延迟了AT的呼叫建立，并导致呼叫连接性能较差。When the AT of the target subnet initiates a call request, since there is no session information related to the AT, the target subnet must retrieve the information related to the AT from the source subnet. After the session information is transmitted to the target subnet, the call setup can proceed and the A8, A10 and UATI information can be updated. This delays call setup at the AT and results in poor call connection performance.

因此，当AT在两个或更多子网内移动时，需要提供一种有效的信令传输方法，特别是当AT处于休眠状态时。Therefore, when the AT moves within two or more subnets, it is necessary to provide an effective signaling transmission method, especially when the AT is in a dormant state.

发明内容Contents of the invention

本发明实施例提供一种接入终端在具有多个子网的无线网络中进行通信的方法，通过该方法可以提高AT呼叫的连接性能。An embodiment of the present invention provides a method for an access terminal to communicate in a wireless network with multiple subnets, through which the connection performance of an AT call can be improved.

本发明实施例提供了一种接入终端，通过该接入终端可以提高AT呼叫的连接性能。An embodiment of the present invention provides an access terminal, through which the connection performance of an AT call can be improved.

为了达到上述目的，本发明实施例的技术方案是这样实现的：In order to achieve the above object, the technical solution of the embodiment of the present invention is achieved in this way:

一种接入终端在具有多个子网的无线网络中进行通信的方法，该方法包括：A method for an access terminal to communicate in a wireless network having multiple subnets, the method comprising:

当休眠状态的接入终端从源子网移动到第一目标子网时，判断所述源子网的色码ColorCode是否与所述第一目标子网的第二色码SecondaryColorCode相一致；When the access terminal in the dormant state moves from the source subnet to the first target subnet, determine whether the color code ColorCode of the source subnet is consistent with the second color code SecondaryColorCode of the first target subnet;

如果所述源子网的ColorCode与所述第一目标子网的SecondaryColorCode不一致，所述接入终端向所述第一目标子网发起统一接入终端标识UATI更新请求；If the ColorCode of the source subnet is inconsistent with the SecondaryColorCode of the first target subnet, the access terminal initiates a UATI update request to the first target subnet;

如果所述源子网的ColorCode与所述第一目标子网的SecondaryColorCode一致，所述接入终端向所述第一目标子网延迟所述UATI更新请求。If the ColorCode of the source subnet matches the SecondaryColorCode of the first target subnet, the access terminal defers the UATI update request to the first target subnet.

一种无线通信系统，该无线通信系统包括：A wireless communication system, the wireless communication system includes:

多个子网；multiple subnets;

至少一个接入终端；at least one access terminal;

所述至少一个接入终端，用于存储其所属源子网的色码ColorCode；The at least one access terminal is used to store the color code ColorCode of the source subnet to which it belongs;

当在休眠状态下从所述源子网向第一目标子网移动时，所述至少一个接入终端，判断所述源子网的ColorCode是否与第一目标子网的第二色码SecondaryColorCode相一致；When moving from the source subnet to the first target subnet in the dormant state, the at least one access terminal determines whether the ColorCode of the source subnet is the same as the SecondaryColorCode of the first target subnet. consistent;

如果所述源子网的ColorCode与所述第一目标子网的SecondaryColorCode不一致，所述至少一个接入终端向所述第一目标子网发起统一接入终端标识UATI更新请求；If the ColorCode of the source subnet is inconsistent with the SecondaryColorCode of the first target subnet, the at least one access terminal initiates a UATI update request to the first target subnet;

如果所述源子网的ColorCode与所述第一目标子网的SecondaryColorCode一致，所述至少一个接入终端向所述第一目标子网延迟所述UATI更新请求。The at least one access terminal delays the UATI update request to the first target subnet if the ColorCode of the source subnet matches the SecondaryColorCode of the first target subnet.

综上所述，基于休眠状态的接入终端在子网间的移动，根据各子网的ColorCode和SecondaryColorCode值，判断应该立即发起UATI更新请求，还是延迟UATI更新。通过本发明实施例的技术方案，减少了AT呼叫建立所需的延迟，提高了呼叫的连接性能。To sum up, based on the movement of the access terminal in the dormant state between subnets, it is judged whether to initiate a UATI update request immediately or delay the UATI update according to the ColorCode and SecondaryColorCode values of each subnet. Through the technical scheme of the embodiment of the invention, the delay required for AT call establishment is reduced, and the connection performance of the call is improved.

附图说明Description of drawings

通过以下的详细描述并结合附图，可以充分说明本公开文件中所述实施例的特征、目标和优点。The features, objects and advantages of the embodiments described in this disclosure can be fully explained by the following detailed description in conjunction with the accompanying drawings.

图1为现有技术中的通信系统示意图；FIG. 1 is a schematic diagram of a communication system in the prior art;

图2为本发明一个实施例的流程图；Fig. 2 is the flowchart of an embodiment of the present invention;

图3为本发明另一个实施例的流程图；Fig. 3 is a flowchart of another embodiment of the present invention;

图4为本发明另一个实施例的流程图。Fig. 4 is a flowchart of another embodiment of the present invention.

具体实施方式Detailed ways

下面结合图2-4，并比较和参照图1的现有系统的相关部分详细说明本发明的实施例。The embodiment of the present invention will be described in detail below in conjunction with FIGS. 2-4 and by comparing and referring to relevant parts of the existing system in FIG. 1 .

当休眠状态的AT 100从源子网102移动到目标子网104时，如果AT 100确定其存储的ColorCode值匹配目标子网104的SecondaryColorCode值，即目标子网104不需要UATI更新，则AT 100可能不发起UATI更新请求，而是延迟目标子网104的UATI更新。When the AT 100 in the dormant state moves from the source subnet 102 to the target subnet 104, if the AT 100 determines that its stored ColorCode value matches the SecondaryColorCode value of the target subnet 104, that is, the target subnet 104 does not need UATI update, then the AT 100 Instead of initiating a UATI update request, the UATI update for the target subnet 104 may be delayed.

可以用多种方法来延迟该UATI更新。AT 100延迟UATI更新的一个实施例就是其启动UATI更新计时器。如果该UATI更新计时器超时，AT 100将向目标子网104发起UATI更新请求。本发明实施例可以用多种方法来定义该UATI更新计时器的长度。例如，该UATI更新计时器的值可以由该AT移动到的目标子网104进行定义，并被发送给AT 100。一个实施例通过目标子网104发送的SectorParameters消息中的UATI更新触发定时器(UATIUpdateTriggerTimer)值来定义该UATI更新计时器的长度。下面的表1示出了SectorParameters消息相关部分中的UATIUpdateTriggerTimer。加下划线来强调该UATIUpdateTriggerTimer。The UATI update can be delayed in a number of ways. One embodiment of the AT 100 delaying the UATI update is that it starts the UATI update timer. If the UATI update timer expires, the AT 100 will initiate a UATI update request to the target subnet 104. In the embodiment of the present invention, various methods may be used to define the length of the UATI update timer. For example, the value of the UATI update timer may be defined by the target subnet 104 to which the AT moves and sent to the AT 100. In one embodiment, the length of the UATI update timer is defined by the UATI update trigger timer (UATIUpdateTriggerTimer) value in the SectorParameters message sent by the target subnet 104 . Table 1 below shows the UATIUpdateTriggerTimer in the relevant part of the SectorParameters message. Underlined to emphasize the UATIUpdateTriggerTimer.

……...

  SecondaryColorCodeIncludedSecondaryColorCodeIncluded   0 or 10 or 1   SecondaryColorCodeCountSecondaryColorCodeCount   0 or 30 or 3   UATIUpdateTriggerTimer UATIUpdateTriggerTimer   0 or 120 or 12

以下域中只包括0或SecondaryColorCodeCount的值：Only 0 or SecondaryColorCodeCount values are included in the following fields:

  SecondaryColorCodeSecondaryColorCode   8 8

……...

表1Table 1

如果第二色码指示(SecondaryColorCodeIncluded)等于0，则表示该接入网不定义该UATIUpdateTriggerTimer域的值。但是如果SecondaryColorCodeIncluded不等于0，则该接入网以秒为单位定义该UATIUpdateTriggerTimer域的值。If the secondary color code indication (SecondaryColorCodeIncluded) is equal to 0, it means that the access network does not define the value of the UATIUpdateTriggerTimer field. But if SecondaryColorCodeIncluded is not equal to 0, then the access network defines the value of the UATIUpdateTriggerTimer field in seconds.

该接入网可以根据当前网络负载设置SectorParameters消息中的UATIUpdateTriggerTimer的值，该UATIUpdateTriggerTimer的缺省值为1800。该UATIUpdateTriggerTimer的值相应地随网络负载的增加而增加，反之亦然。The access network can set the value of the UATIUpdateTriggerTimer in the SectorParameters message according to the current network load, and the default value of the UATIUpdateTriggerTimer is 1800. The value of the UATIUpdateTriggerTimer increases accordingly as the network load increases, and vice versa.

该接入网也可以向AT 100发送时间值。AT 100可以使用收到的时间和自己当前时间的差值来确定该UATI更新计时器的长度。例如，AT 100收到时间值为上午11:05，而AT 100的当前时间为上午11:02，则UATI更新计时器的长度为180秒。The access network may also send a time value to the AT 100. The AT 100 can use the difference between the received time and its own current time to determine the length of the UATI update timer. For example, AT 100 receives the time value as 11:05 am, and the current time of AT 100 is 11:02 am, then the length of UATI update timer is 180 seconds.

如果在该UATI更新计时器超时之前，AT 100移动回源子网102，则停止该UATI更新计时器。但是如果AT 100移动到另一个子网，且基于另一个子网的SecondaryColorCode不需要更新UATI，则通过新接入子网的SectorParameters消息中的UATIUpdateTriggerTimer值复位并重新启动该UATI更新计时器。If the AT 100 moves back to the source subnet 102 before the UATI update timer expires, the UATI update timer is stopped. But if the AT 100 moves to another subnet, and the SecondaryColorCode based on another subnet does not need to update the UATI, then the UATIUpdateTriggerTimer value in the SectorParameters message of the newly accessed subnet is reset and the UATI update timer is restarted.

当UATI更新计时器超时后，AT 100向目标子网104发送更新UATI的UATI更新请求。该目标AN根据该UATI更新请求重新分配一个UATI，并从源子网102中检索AT 100的会话信息。现在该AT会话信息就被存储于目标子网104中，而源子网102就不再保留该会话信息了。一旦AT 100得知连接到目标子网104，或UATI被更新，则AT 100停止该UATI更新计时器。After the UATI update timer expires, the AT 100 sends a UATI update request for updating the UATI to the target subnet 104. The target AN redistributes a UATI according to the UATI update request, and retrieves the session information of the AT 100 from the source subnet 102. The AT session information is now stored in the target subnet 104, and the source subnet 102 no longer retains the session information. Once the AT 100 learns to connect to the target subnet 104, or the UATI is updated, the AT 100 stops the UATI update timer.

参见图2所示的一个实施例，休眠状态的AT 200移动到相邻的目标子网204，并且在目标子网204中发起UATI更新。首先，AT 200在源子网202的服务区中接收该源子网202发送的SectorParameters消息，该参数中携带的ColorCode的值为7，SecondaryColorCode的值为8和9，UATIUpdateTriggerTimer为T1。Referring to one embodiment shown in FIG. 2, a dormant AT 200 moves to an adjacent target subnet 204 and initiates a UATI update in the target subnet 204. First, the AT 200 receives the SectorParameters message sent by the source subnet 202 in the service area of the source subnet 202. The value of the ColorCode carried in the parameter is 7, the values of the SecondaryColorCode are 8 and 9, and the UATIUpdateTriggerTimer is T1.

AT 200向分组控制功能(PCF)实体206发起请求，以便在源子网202中注册会话，然后其被分配UATI。成功注册后，AT 200存储源子网202的ColorCode值，值为7，然后进入数据包会话休眠状态。AT 200 initiates a request to Packet Control Function (PCF) entity 206 to register the session in source subnet 202, which is then assigned a UATI. After successfully registering, the AT 200 stores the ColorCode value of the source subnet 202, which is 7, and then enters the packet session dormant state.

当休眠状态的AT 200移动到目标子网204时，AT 200接收目标子网204发送的SectorParameters消息，该消息中携带的ColorCode的值为8，SecondaryColorCode的值为7，UATIUpdateTriggerTimer为T2。AT 200确定其存储的ColorCode值与目标子网204的SecondaryColorCode值之一相等，即7，但不等于目标子网204的ColorCode，然后AT 200启动长度为T2的UATI更新计时器。When the AT 200 in the dormant state moves to the target subnet 204, the AT 200 receives the SectorParameters message sent by the target subnet 204, the value of the ColorCode carried in the message is 8, the value of the SecondaryColorCode is 7, and the UATIUpdateTriggerTimer is T2. The AT 200 determines that its stored ColorCode value is equal to one of the SecondaryColorCode values of the target subnet 204, i.e. 7, but not equal to the ColorCode of the target subnet 204, and then the AT 200 starts a UATI update timer of length T2.

当该UATI更新计时器超时，AT 200停止该UATI更新计时器，并向目标子网204请求UATI更新。目标子网204为AT 200重新分配一个UATI。成功更新UATI后，AT 200重新存储ColorCode的值，值为8。When the UATI update timer expires, the AT 200 stops the UATI update timer, and requests the UATI update to the target subnet 204. Target subnet 204 reassigns a UATI to AT 200. After successfully updating UATI, AT 200 restores the value of ColorCode, which is 8.

现在结合图3说明本发明的另一个实施例，休眠状态的AT 300移动跨越多个相邻的子网，并在目标子网中更新UATI。首先，AT 300在源子网302的服务区中接收源子网302发送的SectorParameters消息，该消息中携带的ColorCode的值为7，SecondaryColorCode为的值8，UATIUpdateTriggerTimer为T1。Another embodiment of the present invention is now described in conjunction with FIG. 3 , the AT 300 in the dormant state moves across a plurality of adjacent subnets, and updates the UATI in the target subnet. First, the AT 300 receives the SectorParameters message sent by the source subnet 302 in the service area of the source subnet 302. The value of the ColorCode carried in the message is 7, the value of the SecondaryColorCode is 8, and the UATIUpdateTriggerTimer is T1.

AT 300向PCF 308发起在源子网302中注册会话的请求，然后其被分配UATI。ColorCode的值为7。成功注册后，AT 300存储源子网302的ColorCode值，然后进入数据包会话休眠状态。AT 300 initiates a request to PCF 308 to register the session in source subnet 302, which is then assigned a UATI. The value of ColorCode is 7. After successfully registering, the AT 300 stores the ColorCode value of the source subnet 302, and then enters the packet session dormancy state.

当休眠状态的AT 300移动到第一目标子网304时，其接收第一目标子网304发送的SectorParameters消息，该消息中携带的ColorCode的值为8，SecondaryColorCode的值为7和9，UATIUpdateTriggerTimer为T2。AT 300确定其存储的ColorCode具有第一目标子网304的SecondaryColorCode包括的值，即7，但不等于第一目标子网304的ColorCode值，然后AT 300启动长度T2的UATI更新计时器。When the AT 300 in the dormant state moved to the first target subnet 304, it received the SectorParameters message sent by the first target subnet 304, the value of the ColorCode carried in the message was 8, the value of the SecondaryColorCode was 7 and 9, and the UATIUpdateTriggerTimer was T2. The AT 300 determines that its stored ColorCode has the value included in the SecondaryColorCode of the first target subnet 304, i.e. 7, but not equal to the ColorCode value of the first target subnet 304, and then the AT 300 starts a UATI update timer of length T2.

在该UATI更新计时器超时前，休眠状态的AT 300移动到第二目标子网306。AT 300接收第二目标子网306发送的SectorParameters消息，该消息中携带的ColorCode的值为9，SecondaryColorCode的值为7和8，UATIUpdateTriggerTimer为T3。AT 300确定其存储的ColorCode具有第二目标子网306的SecondaryColorCode包括的值，即7，但不等于第二目标子网306的ColorCode的值，然后AT 300将该UATI更新计时器置为T3，并启动该UATI更新计时器。The dormant AT 300 moves to the second target subnet 306 before the UATI update timer expires. The AT 300 receives the SectorParameters message sent by the second target subnet 306, the value of the ColorCode carried in the message is 9, the values of the SecondaryColorCode are 7 and 8, and the UATIUpdateTriggerTimer is T3. The AT 300 determines that the ColorCode stored has the value included in the SecondaryColorCode of the second target subnet 306, i.e. 7, but not equal to the value of the ColorCode of the second target subnet 306, then the AT 300 sets the UATI update timer to T3, And start the UATI update timer.

如果该UATI更新计时器超时，AT 300停止该UATI更新计时器，并向第二目标子网306请求UATI更新。第二目标子网306为AT 300重新分配UATI。成功更新UATI后，AT 300存储ColorCode的值，该ColorCode的值为9。If the UATI update timer expires, the AT 300 stops the UATI update timer, and requests a UATI update to the second target subnet 306. The second target subnet 306 reassigns the UATI for the AT 300. After successfully updating UATI, AT 300 stores the value of ColorCode, which has a value of 9.

现在参照图4说明本发明的另一个实施例。休眠状态的AT 400从源子网402移动到相邻的目标子网404，一段很短时间后再移动回源子网402。但是AT 400没有更新UATI。首先，AT 400在源子网402的服务区中接收源子网402发送的SectorParameters消息，该消息中携带的ColorCode的值为7，SecondaryColorCode的值为8和9，UATIUpdateTriggerTimer为T1。Another embodiment of the present invention will now be described with reference to FIG. 4 . A dormant AT 400 moves from a source subnet 402 to an adjacent target subnet 404, and then moves back to the source subnet 402 after a short period of time. But AT 400 did not update UATI. First, the AT 400 receives the SectorParameters message sent by the source subnet 402 in the service area of the source subnet 402. The value of the ColorCode carried in the message is 7, the values of the SecondaryColorCode are 8 and 9, and the UATIUpdateTriggerTimer is T1.

AT 400向PCF 406发起在源子网402中注册会话的请求，然后该AT 400被分配UATI，ColorCode的值为7。成功注册后，AT 400存储源子网402的ColorCode值，该值为7，然后进入数据包会话休眠状态。The AT 400 initiates a request to register the session in the source subnet 402 to the PCF 406, and then the AT 400 is assigned a UATI, and the value of the ColorCode is 7. After successfully registering, the AT 400 stores the ColorCode value of the source subnet 402, which is 7, and then enters the packet session dormant state.

当休眠状态的AT 400移动到目标子网404时，其接收目标子网404发送的SectorParameters消息，该消息中携带的ColorCode的值为8，SecondaryColorCode的值为7，UATIUpdateTriggerTimer为T2。AT 400确定其存储的ColorCode具有目标子网404的SecondaryColorCode包括的值，即7，但不等于目标子网404的ColorCode，然后AT 400启动长度T2的UATI更新计时器。When the AT 400 in the dormant state moves to the target subnet 404, it receives the SectorParameters message sent by the target subnet 404, the value of the ColorCode carried in the message is 8, the value of the SecondaryColorCode is 7, and the UATIUpdateTriggerTimer is T2. The AT 400 determines that its stored ColorCode has the value included in the SecondaryColorCode of the target subnet 404, i.e. 7, but not equal to the ColorCode of the target subnet 404, and then the AT 400 starts a UATI update timer of length T2.

在该UATI更新计时器超时之前，AT 400返回源子网402，并接收源子网402发送的SectorParameters消息，该消息中携带的ColorCode的值为7，SecondaryColorCode的值为8和9，UATIUpdateTriggerTimer为T1。由于AT 400存储的ColorCode具有与接收的源子网402的ColorCode相同的值，即7，AT 400停止UATI更新计时器。但是该AT 400不会启动另一个UATI更新计时器。Before the UATI update timer expires, the AT 400 returns to the source subnet 402, and receives the SectorParameters message sent by the source subnet 402, the value of the ColorCode carried in the message is 7, the values of the SecondaryColorCode are 8 and 9, and the UATIUpdateTriggerTimer is T1 . Since the ColorCode stored by the AT 400 has the same value as the received ColorCode of the source subnet 402, namely 7, the AT 400 stops the UATI update timer. But the AT 400 will not start another UATI update timer.

因此本发明实施例在AT和接入网之间提供了优化AT接入性能的信令，尤其是减少子网间的通信。AT从源子网移动到目标子网后会触发UATI更新。降低了AT的接入时延，提高无线通信的性能。缩短了呼叫建立时延。Therefore, the embodiment of the present invention provides signaling between the AT and the access network to optimize the access performance of the AT, especially to reduce communication between subnets. A UATI update is triggered after the AT moves from the source subnet to the target subnet. The access delay of AT is reduced, and the performance of wireless communication is improved. Reduced call setup delay.

为了能够使本领域技术人员能够理解或应用本发明，以上给出了本发明所公开实施例的详细说明。本领域技术人员很容易对这些实施例做出多种改变，这里所述的一般原理适用于包含在本发明所述的精神和保护范围之内的其他实施例中。因此，本发明的保护范围并不仅仅局限于所述实施例，而是包括所有符合本发明所述原理和新特征在内的最宽的保护范围。In order to enable those skilled in the art to understand or apply the present invention, the above provides detailed descriptions of the disclosed embodiments of the present invention. Those skilled in the art can easily make various changes to these embodiments, and the general principles described here are applicable to other embodiments included in the spirit and protection scope of the present invention. Therefore, the protection scope of the present invention is not limited to the embodiments, but the broadest protection scope including all the principles and new features of the present invention.

Claims (20)

1.一种接入终端在具有多个子网的无线网络中进行通信的方法，其特征在于，包括：1. A method for an access terminal to communicate in a wireless network with multiple subnets, characterized in that, comprising: 当休眠状态的接入终端从源子网移动到第一目标子网时，判断所述源子网的色码ColorCode是否与所述第一目标子网的第二色码SecondaryColorCode相一致；When the access terminal in the dormant state moves from the source subnet to the first target subnet, determine whether the color code ColorCode of the source subnet is consistent with the second color code SecondaryColorCode of the first target subnet; 如果所述源子网的ColorCode与所述第一目标子网的SecondaryColorCode不一致，所述接入终端向所述第一目标子网发起统一接入终端标识UATI更新请求；If the ColorCode of the source subnet is inconsistent with the SecondaryColorCode of the first target subnet, the access terminal initiates a UATI update request to the first target subnet; 如果所述源子网的ColorCode与所述第一目标子网的SecondaryColorCode一致，所述接入终端向所述第一目标子网延迟所述UATI更新请求。If the ColorCode of the source subnet matches the SecondaryColorCode of the first target subnet, the access terminal defers the UATI update request to the first target subnet. 2.根据权利要求1所述的方法，其特征在于，所述延迟所述UATI更新请求的方法包括：2. The method according to claim 1, wherein the method for delaying the UATI update request comprises: 所述接入终端启动UATI更新计时器；The access terminal starts a UATI update timer; 如果所述UATI更新计时器超时，所述接入终端向所述第一目标子网发起UATI更新请求。If the UATI update timer expires, the access terminal initiates a UATI update request to the first target subnet. 3.根据权利要求2所述的方法，其特征在于，该方法进一步包括：3. The method according to claim 2, characterized in that the method further comprises: 利用第一目标子网发送的信息定义所述UATI更新计时器。The UATI update timer is defined using information sent by the first target subnet. 4.根据权利要求3所述的方法，其特征在于，所述信息包括所述第一目标子网发送的扇区参数SectorParameters消息中的UATI更新触发定时器UATIUpdateTriggerTimer的值。4. The method according to claim 3, wherein the information includes the value of the UATI update trigger timer UATIUpdateTriggerTimer in the SectorParameters message sent by the first target subnet. 5.根据权利要求4所述的方法，其特征在于，所述UATIUpdateTriggerTimer的值是根据网络负载定义的。5. The method according to claim 4, wherein the value of the UATIUpdateTriggerTimer is defined according to network load. 6.根据权利要求4所述的方法，其特征在于，所述UATIUpdateTriggerTimer的缺省值为1800。6. The method according to claim 4, wherein the default value of the UATIUpdateTriggerTimer is 1800. 7.根据权利要求3所述的方法，其特征在于，所述信息包括所述第一目标子网发送的时间值，7. The method according to claim 3, wherein the information includes a time value sent by the first target subnet, 所述UATI更新计时器是使用所述第一目标子网发送的时间值和所述接入终端的当前时间来定义的。The UATI update timer is defined using the time value transmitted by the first target subnetwork and the current time of the access terminal. 8.根据权利要求2所述的方法，其特征在于，该方法进一步包括：如果所述接入终端在所述UATI更新计时器超时之前移动回所述源子网，则停止所述UATI更新计时器，所述接入终端不向所述第一目标子网发起UATI更新请求。8. The method of claim 2, further comprising: stopping the UATI update timer if the access terminal moves back to the source subnet before the UATI update timer expires The access terminal does not initiate a UATI update request to the first target subnet. 9.根据权利要求2所述的方法，其特征在于，该方法进一步包括：如果所述接入终端在所述UATI更新计时器超时之前移动到第二目标子网中，且所述接入终端基于所述第二目标子网的SecondaryColorCode确定不需要更新UATI，则复位并重新启动所述UATI更新计时器。9. The method of claim 2, further comprising: if the access terminal moves to a second target subnet before the UATI update timer expires, and the access terminal If it is determined based on the SecondaryColorCode of the second target subnet that the UATI does not need to be updated, then the UATI update timer is reset and restarted. 10.根据权利要求9所述的方法，其特征在于，10. The method of claim 9, wherein, 所述UATI更新计时器是利用所述第二目标子网发送的信息进行复位的。The UATI update timer is reset using information sent by the second target subnet. 11.一种无线通信系统，其特征在于，包括：11. A wireless communication system, comprising: 多个子网；multiple subnets; 至少一个接入终端；at least one access terminal; 所述至少一个接入终端，用于存储其所属源子网的色码ColorCode；The at least one access terminal is used to store the color code ColorCode of the source subnet to which it belongs; 当在休眠状态下从所述源子网向第一目标子网移动时，所述至少一个接入终端，判断所述源子网的ColorCode是否与第一目标子网的第二色码SecondaryColorCode相一致；When moving from the source subnet to the first target subnet in the dormant state, the at least one access terminal determines whether the ColorCode of the source subnet is the same as the SecondaryColorCode of the first target subnet. consistent; 如果所述源子网的ColorCode与所述第一目标子网的SecondaryColorCode不一致，所述至少一个接入终端向所述第一目标子网发起统一接入终端标识UATI更新请求；If the ColorCode of the source subnet is inconsistent with the SecondaryColorCode of the first target subnet, the at least one access terminal initiates a UATI update request to the first target subnet; 如果所述源子网的ColorCode与所述第一目标子网的SecondaryColorCode一致，所述至少一个接入终端向所述第一目标子网延迟所述UATI更新请求。The at least one access terminal delays the UATI update request to the first target subnet if the ColorCode of the source subnet matches the SecondaryColorCode of the first target subnet. 12.根据权利要求11所述的系统，其特征在于，所述至少一个接入终端向所述第一目标子网延迟所述UATI更新请求包括：12. The system of claim 11, wherein the at least one access terminal delaying the UATI update request to the first target subnet comprises: 所述至少一个接入终端启动UATI更新计时器；the at least one access terminal starts a UATI update timer; 如果所述UATI更新计时器超时，所述至少一个接入终端向所述第一目标子网发起UATI更新请求。If the UATI update timer expires, the at least one access terminal initiates a UATI update request to the first target subnet. 13.根据权利要求12所述的系统，其特征在于，利用所述第一目标子网发送的信息定义所述UATI更新计时器。13. The system according to claim 12, wherein the UATI update timer is defined by using the information sent by the first target subnet. 14.根据权利要求13所述的系统，其特征在于，所述信息包括所述第一目标子网发送的扇区参数SectorParameters消息中的UATI更新触发定时器UATIUpdateTriggerTimer的值。14. The system according to claim 13, wherein the information includes the value of the UATI update trigger timer UATIUpdateTriggerTimer in the SectorParameters message sent by the first target subnet. 15.根据权利要求14所述的系统，其特征在于，根据网络负载定义所述UATIUpdateTriggerTimer的值。15. The system according to claim 14, wherein the value of the UATIUpdateTriggerTimer is defined according to network load. 16.根据权利要求14所述的系统，其特征在于，所述UATIUpdateTriggerTimer的缺省值为1800。16. The system according to claim 14, wherein the default value of the UATIUpdateTriggerTimer is 1800. 17.根据权利要求13所述的系统，其特征在于，所述信息包括所述第一目标子网发送的时间值，17. The system according to claim 13, wherein the information includes a time value sent by the first target subnet, 并使用所述第一目标子网发送的时间值和所述至少一个接入终端的当前时间来定义所述UATI更新计时器。And using the time value sent by the first target subnet and the current time of the at least one access terminal to define the UATI update timer. 18.根据权利要求12所述的系统，其特征在于，如果所述至少一个接入终端在所述UATI更新计时器超时之前移动回所述源子网，则所述至少一个接入终端停止所述UATI更新计时器，所述至少一个接入终端不向所述第一目标子网发起UATI更新请求。18. The system of claim 12, wherein if the at least one access terminal moves back to the source subnet before the UATI update timer expires, the at least one access terminal stops all The UATI update timer, the at least one access terminal does not initiate a UATI update request to the first target subnet. 19.根据权利要求12所述的系统，其特征在于，如果所述至少一个接入终端在所述UATI更新计时器超时之前移动到一个第二目标子网中，且所述至少一个接入终端基于所述第二目标子网的SecondaryColorCode确定不需要更新UATI，则所述至少一个接入终端复位并重新启动所述UATI更新计时器。19. The system of claim 12, wherein if the at least one access terminal moves to a second target subnet before the UATI update timer expires, and the at least one access terminal Determining that no UATI update is required based on the SecondaryColorCode of the second target subnet, the at least one access terminal resets and restarts the UATI update timer. 20.一种休眠状态的接入终端在具有多个子网的无线网络中进行统一接入终端标识UATI更新的方法，其特征在于，包括：20. A method for an access terminal in a dormant state to update a unified access terminal identifier UATI in a wireless network with multiple subnets, characterized in that it includes: 当休眠状态的接入终端从源子网移动到第一目标子网时，判断该源子网的色码ColorCode是否与第一目标子网的第二色码SecondaryColorCode相一致；When the access terminal in the dormant state moves from the source subnet to the first target subnet, it is judged whether the color code ColorCode of the source subnet is consistent with the second color code SecondaryColorCode of the first target subnet; 如果所述源子网的ColorCode与所述第一目标子网的SecondaryColorCode不一致，所述接入终端就向所述第一目标子网发起UATI更新请求；If the ColorCode of the source subnet is inconsistent with the SecondaryColorCode of the first target subnet, the access terminal initiates a UATI update request to the first target subnet; 如果所述源子网的ColorCode与所述第一目标子网的SecondaryColorCode一致，所述接入终端启动UATI更新计时器；If the ColorCode of the source subnet is consistent with the SecondaryColorCode of the first target subnet, the access terminal starts a UATI update timer; 如果所述UATI更新计时器超时，所述接入终端向所述第一目标子网发起UATI更新请求；If the UATI update timer expires, the access terminal initiates a UATI update request to the first target subnet; 如果所述接入终端在所述UATI更新计时器超时前移动回所述源子网，则停止所述UATI更新计时器；stopping the UATI update timer if the access terminal moves back to the source subnet before the UATI update timer expires; 如果所述接入终端在所述UATI更新计时器超时前移动到第二目标子网，且所述接入终端基于所述第二目标子网的SecondaryColorCode确定不需要更新UATI，则复位并重新启动所述UATI更新计时器。If the access terminal moves to a second target subnet before the UATI update timer expires, and the access terminal determines based on the SecondaryColorCode of the second target subnet that no UATI update is required, reset and restart The UATI updates the timer.
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