WO2008061474A1 - Method and device for paging in trunking system - Google Patents

Method and device for paging in trunking system Download PDF

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Publication number
WO2008061474A1
WO2008061474A1 PCT/CN2007/071091 CN2007071091W WO2008061474A1 WO 2008061474 A1 WO2008061474 A1 WO 2008061474A1 CN 2007071091 W CN2007071091 W CN 2007071091W WO 2008061474 A1 WO2008061474 A1 WO 2008061474A1
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WO
WIPO (PCT)
Prior art keywords
wireless node
called
location area
paging
call setup
Prior art date
Application number
PCT/CN2007/071091
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English (en)
French (fr)
Inventor
Yingxin Pan
Original Assignee
Da Tang Mobile Communications Equipment Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Da Tang Mobile Communications Equipment Co., Ltd. filed Critical Da Tang Mobile Communications Equipment Co., Ltd.
Priority to JP2009537474A priority Critical patent/JP5254242B2/ja
Priority to US12/516,309 priority patent/US8934924B2/en
Priority to EP07817281.4A priority patent/EP2091262B1/en
Publication of WO2008061474A1 publication Critical patent/WO2008061474A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/08—User notification, e.g. alerting and paging, for incoming communication, change of service or the like using multi-step notification by increasing the notification area
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/08—Trunked mobile radio systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/04—User notification, e.g. alerting and paging, for incoming communication, change of service or the like multi-step notification using statistical or historical mobility data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/06—User notification, e.g. alerting and paging, for incoming communication, change of service or the like using multi-step notification by changing the notification area

Definitions

  • the present invention relates to the field of trunking system communication technologies, and in particular, to a paging method and apparatus in a cluster system. Background technique
  • the cluster system is an advanced mobile communication scheduling system.
  • the so-called cluster system that is, the available channels of the system can be shared by all users of the system, and has an automatic channel selection function, which is a multi-purpose, high-performance and inexpensive wireless scheduling of shared resources, cost sharing, shared channel devices and services. Communication Systems.
  • the cluster system has very high requirements for fast call setup. In addition, due to the particularity of the application customer group, the call completion rate is also very high.
  • Cluster systems are mostly centralized control call systems, which are implemented by adding a scheduling subsystem to an existing mobile public network, such as the Global System for Mobile Communications (GSM) network.
  • GSM Global System for Mobile Communications
  • a distributed cluster system which does not pass the mobile public network and has an independent calling system.
  • the structure of the system is as shown in FIG. 1 , including a wireless node (TRN, Trunking Radio Node) 10, a dispatch center (TDC, Trunking Dispatching Center) 20, a location register (TLR, Trunking Location Register) 30, a management station (AS, Application)
  • the service 40 and the dispatching station 50 further include a voice gateway (VGW) 60, a data gateway (DGW, Data Gateway) 70, and a Trunking Interworking Node (TIN) 80.
  • VGW voice gateway
  • DGW Data Gateway
  • TIN Trunking Interworking Node
  • TRN10 is used to enable user equipment (UE, User Equipment) through its air interface
  • the 90 access network performs mobility management and call control on the UE 90 that accesses the TRN 10, and notifies the TDC 20, the TLR 30, and other TRNs 10 of the information about the UE 90 that accesses the TRN 10, and obtains and stores the UE 90 information sent by the other TRN 10.
  • the TDC 20 is configured to perform scheduling control on the UE 90 through the TRN 10 and the TLR 30 in the network according to the scheduling of the dispatching station.
  • TLR30 is used to store UE90 related Information, providing information for the TRN10 to assist the TRN10 in mobility management of the UE.
  • the AS 40 is configured to perform management operations on information related to the UE 90 stored in the TLR 30.
  • the dispatching station 50 is a device for performing scheduling control and service management on the UE 90 in the trunking communication network, and mainly performs scheduling command of the cluster call.
  • the VGW 60 is used to implement interconnection and voice communication of the TRN 10, TDC 20, TLR 30 in the system with the public switched telephone network and/or the public land mobile network 100.
  • the DGW 70 is used to implement interconnection and data communication between the TRN 10, the TDC 20, and the TLR 30 in the system and the external service network/data server 110.
  • TIN80 is used to implement inter-network communication between different cluster networks in the system.
  • the network side initiates paging to the UE according to the location area/routing area information of the called UE that it holds.
  • the network side will not be able to page the UE.
  • a secondary paging scheme is adopted in the mobile public network to reduce the occurrence of the above situation.
  • the so-called secondary paging means that: the network side initiates paging to the called UE in the location area/routing area according to the location area/routing area information of the called UE that is saved; if the called UE has moved to a new location The area/routing area, and the new location information is not reported to the network side in time, the network side will not be able to page to the called UE in the original location area/routing area. At this time, the network side will automatically expand the paging range, and the called UE will be paged twice in the adjacent location area/routing area of the original location area/routing area, thereby improving the paging success rate and the called connection rate.
  • the problem of paging the users of the cluster system through the mobile public network is that if the paging method is adopted, the range of paging of the user is limited, only for one location area/routing area; if the method of secondary paging is adopted , the paging delay is larger. Moreover, whether paging or secondary paging is used, paging can only be performed in the location area/routing area under the jurisdiction of the same core network, and paging across the core network is not supported.
  • the technical problem to be solved by the present invention is to provide a paging method and apparatus in a cluster system for a distributed cluster system, to expand the paging range, shorten the paging delay, and also support paging across TRNs. , solve the problem that the page cannot be paged across the TRN due to the user's high-speed movement.
  • the calling user equipment UE initiates a call setup request to find the location area where the called UE is located.
  • the location area and the adjacent location area of the location area page the called UE.
  • the following location is used to find the location area where the called UE is located:
  • the first wireless node where the calling UE is located receives the call setup request message sent by the calling UE; when the called UE is in the first wireless node, the first wireless node obtains the called UE according to the information of the called UE that it holds. In the location area, sending a call setup response message to the calling UE;
  • the route queries to the second wireless node where the called UE is located, establishes a link between the first wireless node and the second wireless node, and sends a call setup request message to the second wireless.
  • the node obtains, by the second wireless node, the location area where the called UE is located according to the information of the called UE that it saves.
  • paging the called UE when the called UE is in the first wireless node, paging the called UE according to the following steps: when the adjacent location area of the location area where the called UE is located belongs to other wireless nodes, the first wireless node will Transmitting the information of the adjacent location area and the call setup request message to the corresponding wireless node; the first wireless node paging the called UE in the location area where the called UE is located and the adjacent location area belonging to the local node, Other wireless nodes page the called UE in the corresponding location area.
  • the method further includes:
  • the called UE sends a paging response message to the current wireless node where it is located at the current location, and establishes a mobility management connection and a radio resource management connection with the wireless node.
  • the method further includes:
  • the primary and the called UE establish communication; when the current wireless node is not the first wireless node, the current wireless node sends a paging response message to the first wireless node.
  • the first wireless node establishes a link with the current wireless node, and the primary and the called UE establish communication.
  • paging the called UE when the called UE is in the second wireless node, paging the called UE according to the following steps: when the adjacent location area of the location area where the called UE is located belongs to other wireless nodes, the second wireless node will Transmitting the information of the adjacent location area and the call setup request message to the corresponding wireless node; the second wireless node paging the called UE in the location area where the called UE is located and the adjacent location area belonging to the local node, Other wireless nodes page the called UE in the corresponding location area.
  • the method further includes:
  • the called UE sends a paging response message to the current wireless node where it is located at the current location, and the absence
  • the line node establishes a mobility management connection and a radio resource management connection.
  • the method further includes:
  • the primary and the called UE establish communication; otherwise, when the current wireless node is the first wireless node, release the chain between the first wireless node and the second wireless node Road, complete call setup of the calling UE;
  • the second wireless node sends the information of the current wireless node to the first wireless node, releasing the link between the current wireless node and the first wireless node;
  • the first wireless node sends a call setup request message to the current wireless node, and after receiving the call setup response message sent by the current wireless node, completes call setup of the calling UE.
  • the present invention further provides a paging device in a cluster system, including: an inquiring unit, configured to: according to a call setup request initiated by a calling user equipment UE, find a location area where the called UE is located;
  • the query unit includes:
  • a receiving unit configured to receive a call setup request message sent by the calling UE
  • a determining unit configured to determine whether the primary and the called UE are all in the first wireless node
  • the same node query unit is configured to: when the primary and the called UE are in the first wireless node, obtain the location area where the called UE is located according to the information of the called UE saved by the first wireless node, and send a call setup response message to the calling UE. ;
  • An inter-node query unit configured to: when the calling UE is in the first wireless node, and the called UE is in the second wireless node, routing the query to the second wireless node where the called UE is located, establishing the first wireless node and the second wireless The link between the nodes sends a call setup request message to the second wireless node, and the second wireless node obtains the location area where the called UE is located according to the information of the called UE that is saved by the second wireless node.
  • the paging unit includes:
  • a location area determining unit configured to determine whether an adjacent location area of the location area where the called UE is located belongs to another wireless node
  • a notifying unit configured to send the information of the adjacent location area and the call setup request message to the other wireless node when the adjacent location area of the location area of the called UE belongs to another wireless node; a unit, configured to be in a location area where the called UE is located and a node belonging to the called UE The neighboring location area pages the called UE, informing the other wireless node to page the called UE in the corresponding location area.
  • the network side when the calling UE initiates a call request, the network side, after looking up the location area where the called UE is located, will page the called UE in the location area and the adjacent location area of the location area. It can be seen that when the called UE moves between the location areas, whether the called UE can report its current location information in time, whether the network side knows the current location of the called UE, the network side automatically expands the paging. The range, so that the probability of the network side paging to the UE at one time is greatly increased, and the paging delay is shortened.
  • FIG. 1 is a schematic diagram of a network structure of a distributed cluster system
  • FIG. 3 is a flow chart of Embodiment 2 of the method of the present invention.
  • Figure 5 is a flow chart of Embodiment 3 of the method of the present invention.
  • FIG. 6 is a schematic view showing the structure of the apparatus of the present invention. detailed description
  • the network side when the calling UE initiates a call request, the network side, after looking up the location area where the called UE is located, will page the called UE in the location area and the adjacent location area of the location area, thereby The range of paging has been expanded to shorten the paging delay.
  • UE1 When UE1 calls UE2, UE1 is the calling UE and UE2 is the called UE. It is assumed that UE1 is in the location area A1 belonging to TRN1, UE2 is in the location area B1 belonging to TRN2, and location areas B2 and B3 are B1. Adjacent location area.
  • TRN1 and TRN2 are in the same TRN.
  • the flow of UE1 calling UE2 is shown in FIG. 2.
  • step 201 UE1 sends a call setup request message to TRN1, that is, the calling UE initiates a call to the network side.
  • TRN1 After receiving the call setup request message, TRN1 obtains the called UE, that is, UE2. The number of the UE2 belongs to the TRN, and the TRN1 returns a call setup response message to the UE1, and pages the UE2 in the adjacent location areas B2 and B3 of the location area B1, B1.
  • step 203 after receiving the call setup response message, UE1 sends a call completion indication message to TRN1.
  • step 204 UE2 receives the paging message and sends a paging response message to TRN1.
  • TRN1 and UE2 establish MM and RR connections.
  • step 206 UE1 establishes communication with UE2 to make a call.
  • the location areas B1, B2, and B3 all belong to the TRN1.
  • TRN1 can directly search for the three location areas. Call to UE2.
  • TRN1 needs to send the call setup request message and the information of the location area B3 to TRN3, and TRN3 pages UE2 in the location area B3.
  • TRN3 will receive the paging response message of UE2, and establish mobility management (MM, Mobility Management) and radio resource management (RR, Radio Resource Management) with UE2. ) Connect and send a page response message to TRN1. At this time, TRN1 and TRN3 will establish a link, and UE1 and UE2 establish communication to make a call.
  • MM Mobility Management
  • RR Radio Resource Management
  • Embodiment 2 when UE1 and UE2 are in the same TRN, that is, TRN1 and TRN2 are different TRNs. At this time, the flow of UE1 calling UE2 is as shown in FIG. 3.
  • step 301 UE1 sends a call setup request message to TRN1, that is, the calling UE initiates a call to the network side.
  • step 302 the routing query process, TRN1 queries that UE2 is in TRN2 and establishes a link with TRN2.
  • TRN1 sends a call setup request message to TRN2.
  • TRN2 receives the call setup request message sent by TRN1, if it finds that there is a neighboring location area belonging to other TRNs, it also sends a call setup request message to the TRN to which the adjacent location area belongs.
  • TRN2 finds that the adjacent location area B3 of the location area B1 belongs to TRN3, the call setup request message and the location area B3 information are also sent to TRN3.
  • step 305 the TRN that received the call setup request message pages UE2 in the corresponding location area. If location areas Bl, B2, and B3 all belong to TRN2, then only TRN2 pages UE2 in location areas Bl, B2, and B3. If the location areas Bl, B2 belong to TRN2 and the location area B3 belongs to TRN3, TRN3 will receive the call setup request message sent by TRN2 and the information of location area B3. At this time, not only TRN2 pages UE2 in location areas B1, B2, but TRN3 will also page UE2 in location area B3.
  • step 306 UE2 receives the paging message, sends a paging response message to the TRN currently in which it is located, and establishes an MM and RR connection with the current TRN.
  • UE2 receives the paging message in the location area governed by TRN2, it sends a paging response message to TRN2, and establishes an MM and RR connection with TRN2. If UE2 receives the paging message in the location area governed by TRN3, it sends a paging response message to TRN3, and establishes an MM and RR connection with TRN3.
  • step 307 the TRN that received the paging response message sends the paging response message to TRN2.
  • TRN3 receives the paging response message sent by UE2, and TRN3 sends the message to TRN2, so that TRN2 knows that UE2 is in TRN3.
  • TRN2 will determine if the page response message is from another TRN.
  • TRN2 initiates a call route re-provisioning process, and sends the TRN address of the current UE2 to TRN1, and releases the link between TRN1 and TRN2, and step 311 is performed.
  • step 309 UE1 and UE2 establish communication and make a call.
  • TRN1 initiates a call setup request to the TRN where UE2 is actually located.
  • the paging response message sent by UE2 to TRN3 will be sent to TRN2 by TRN3, and TRN2 initiates a call routing reconfiguration process, sending the address of TRN3 to TRN1, and releasing TRN1 and TRN2.
  • the link between. TRN1 will then initiate a call setup request to TRN3.
  • the TRN currently in which UE2 is located responds to the call setup request of TRN1.
  • TRN1 sends a call setup response message to UE1, and UE1 returns a call completion indication message to TRN1, thereby completing call setup of the calling UE.
  • Embodiment 2 although the primary and the called UE are not in the same TRN, the principle of the network side making a call to the called UE is exactly the same as that in Embodiment 1, that is, the paging range is automatically expanded, thereby making the network The probability of paging to the UE at one time is greatly increased, and the paging delay is also shortened.
  • FIG. 4 is based on this case. Signaling flow chart.
  • Embodiment 3 if UE1 and UE2 are in the same TRN but the paging is initiated, UE2 moves into the TRN where UE1 is located, that is, TRN1. At this time, the flow of UE1 calling UE2 is as shown in FIG. 5.
  • step 501 UE1 sends a call setup request message to TRN1, that is, the calling UE initiates a call to the network side.
  • step 502 the routing query process, TRN1 queries UE2 to be in TRN2, and establishes a link with TRN2.
  • TRN1 sends a call setup request message to TRN2.
  • step 504 after TRN2 receives the call setup request message sent by TRN1, if it finds that there is a neighbor location area belonging to another TRN, it also sends a call setup request message to the TRN to which the adjacent location area belongs.
  • TRN2 finds that the adjacent location area B3 of the location area B1 belongs to TRN1, the call setup request message and the location area B3 information are also sent to TRN1.
  • step 505 the TRN that received the call setup request message pages UE2 in the corresponding location area. If location areas Bl, B2, and B3 all belong to TRN2, then only TRN2 pages UE2 in location areas Bl, B2, and B3. If the location areas Bl, B2 belong to TRN2 and the location area B3 belongs to TRN1, TRN1 will receive the call setup request message sent by TRN2 and the information of location area B3. At this time, not only TRN2 pages UE2 in the location areas B1, B2, but TRN1 will also page UE2 in the location area B3.
  • step 506 UE2 receives the paging message, sends a paging response message to the TRN it is currently in, and establishes an MM and RR connection with the corresponding TRN.
  • UE2 If UE2 receives a paging message in the location area governed by TRN2, it sends a paging tone to TRN2. The message should be established, and MM and RR connections are established with TRN2. If UE2 receives the paging message in the location area governed by TRN1, it sends a paging response message to TRN1, and establishes a MM and RR connection with TRN1.
  • step 507 if TRN1 receives the paging response message sent by UE2, it notifies TRN2 to perform call routing reconfiguration.
  • TRN2 After TRN2 receives the route reconfiguration notification sent by TRN1, it will release the link between it and TRN1. In step 508, TRN1 sends a call setup response message to UE1, and UE1 returns a call completion indication message to TRN1, thereby completing call setup of the calling UE.
  • the present invention also provides a paging apparatus in a cluster system
  • Fig. 6 shows the structure of the apparatus, the apparatus comprising an inquiry unit 61 and a paging unit 62.
  • the query unit 61 includes a receiving unit 611, a judging unit 612, a co-node query unit 613, and an inter-node query unit 614.
  • the paging unit 62 includes a location area judging unit 621, a notifying unit 622, and a UE paging unit 623.
  • all the TRNs have the device.
  • the device implements the corresponding function according to the TRN in which it is located.
  • UE1 When UE1 calls UE2, UE1 is the calling UE and UE2 is the called UE. It is assumed that UE1 is in the location area A1 belonging to TRN1, UE2 is in the location area B1 belonging to TRN2, and location areas B2 and B3 are B1. Adjacent location area.
  • the query unit 61 in the paging device initiates a call setup request message according to the UE1, searches for the called UE, that is, the location area where the UE2 is located, and uses the seek location.
  • the calling unit 62 pages the UE2 in the location area where the UE2 is located and the adjacent location area of the location area.
  • the device When the UE1 sends a call setup request message to the network side, the device receives the call setup request message sent by the UE1 through the receiving unit 611 at TRN1, and uses the determining unit 612 to determine whether UE1 and UE2 are both in the same wireless node.
  • TRN1 and TRN2 are the same TRN.
  • the same node query unit 613 obtains the location area where the UE2 is located according to the information of the UE2 saved by the TRN1, that is, the location area B1, and sends the same to the UE1. Call setup response message.
  • the paging device determines, by the location area determining unit 621, the adjacent location areas of the location area B1, that is, the location areas B2, B3, whether there are other TRNs.
  • the adjacent location area belongs to other TRNs, and the location location area ⁇ 3 is located in the other TRN, the information of the location area ⁇ 3 is notified by the notification unit 622.
  • the call setup request message sent by the UE1 is sent to the TRN to which the location area B3 belongs.
  • the paging apparatus pages the UE2 in the location area B1 and the adjacent location area B2 through the UE paging unit 623, and notifies the TRN to which the location area B3 belongs to page the UE2 in the location area B3.
  • the heterogeneous query unit 614 routes the query to the TRN2 where the UE2 is located, establishes a link between TRN1 and TRN2, and sends a call setup request.
  • the message arrives at TRN2, and the location area where the UE2 is located, that is, the location area Bl, is obtained by the TRN2 according to the information of the UE2 it holds.
  • the paging apparatus judges whether the adjacent location areas of the location area B1, that is, the location areas B2, B3, belong to other TRNs by the location area judging unit 621.
  • the notification unit 622 transmits the information of the location area B3 and the call setup request message sent by the UE1 to the TRN to which the location area B3 belongs.
  • the paging apparatus pages the UE2 in the location area B1 and the adjacent location area B2 through the UE paging unit 623, and notifies the TRN to which the location area B3 belongs to page the UE2 in the location area B3.
  • DSPs digital signal processors
  • ASICs application specific integrated circuits
  • FPGAs field programmable gate arrays
  • a general purpose processor may be a microprocessor, but in another case the processor may be any conventional processor, controller, microcontroller or state machine.
  • the processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, multiple micro-locations A microprocessor, one or more microprocessors that incorporate a DSP core, or any other such structure.
  • the steps of the method described in connection with the above disclosed embodiments may be embodied directly in hardware, a software module executed by a processor, or a combination of the two.
  • Software modules may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.
  • a typical storage medium is coupled to the processor such that the processor can read information from the storage medium and can write information to the storage medium.
  • the storage medium is an integral part of the processor.
  • the processor and storage medium may exist in an ASIC.
  • the ASIC may exist in a subscriber station.
  • the processor and storage medium may exist as discrete components in the subscriber station.

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Description

集群系统中的寻呼方法和装置 本申请要求于 2006 年 11 月 24 日提交中国专利局、 申请号为 200610144067.8、 发明名称为"集群系统中的寻呼方法和装置"的中国专利申请 的优先权， 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及集群系统通信技术领域，尤其涉及一种集群系统中的寻呼方法 和装置。 背景技术
集群系统是一种高级移动通信调度系统。所谓集群系统， 即系统所具有的 可用信道可为系统的全体用户共用， 具有自动选择信道功能， 它是共享资源、 分担费用、共用信道设备及服务的多用途、 高效能而又廉价的无线调度通信系 统。 集群系统对快速呼叫建立的要求非常高， 另外由于应用的客户群体的特殊 性， 对呼叫的接通率要求也非常高。
集群系统大多是集中控制的呼叫系统， 通过在已有的移动公网， 例如： 全 球移动通信系统（GSM ) 网络， 添加调度子系统来实现的。
目前， 新提出一种分布式的集群系统， 该系统不通过移动公网， 具有独立 的呼叫系统。该系统的结构如图 1所示， 包括无线节点（TRN, Trunking Radio Node ) 10、调度中心（ TDC， Trunking Dispatching Center )20、位置寄存器（ TLR, Trunking Location Register ) 30、 管理台 ( AS, Application Service ) 40和调度 台 50， 还包括语音网关 ( VGW, Voice Gateway ) 60、 数据网关（DGW, Data Gateway ) 70和互连节点 ( TIN, Trunking Interworking Node ) 80。
TRN10用于通过其具有的空中接口， 使用户设备 ( UE , User Equipment )
90接入网络， 对接入本 TRN10的 UE90进行移动性管理和呼叫控制， 将接入 本 TRN10的 UE90的相关信息通知 TDC20、 TLR30和其它的 TRN10, 获得并 保存其它 TRN10发送的 UE90信息。 TDC20用于根据调度台的调度通过网络 中的 TRN10、 TLR30对 UE90进行调度控制。 TLR30用于存储 UE90的相关 信息， 为 TRN10提供信息， 协助 TRN10对 UE的移动性管理。 AS40用于对 TLR30存储的 UE90的相关信息进行管理操作。 调度台 50是对集群通信网络 中的 UE90进行调度控制和业务管理的设备， 主要完成集群呼叫的调度指挥。 VGW60用于实现系统中的 TRN10、 TDC20、 TLR30与公共电话交换网和 /或 公共陆地移动网 100的互连和语音通信。 DGW70用于实现系统中的 TRN10、 TDC20、 TLR30与外部的业务网 /数据服务器 110的互连和数据通信。 TIN80 用于实现该系统中不同集群网络之间的跨网通信。
在移动公网中， 网络侧根据其保存的被叫 UE的位置区 /路由区信息，向该 UE发起寻呼。 但是在某些特殊情况下， 由于无线网络质量不好， 或 UE所处 的位置区 /路由区发生变化而 UE未及时上报， 将导致网络侧寻呼不到 UE。
在移动公网中采用二次寻呼的方案以减少上述情况的发生。所谓二次寻呼 是指： 网络侧根据其保存的被叫 UE的位置区 /路由区信息， 在该位置区 /路由 区向被叫 UE发起寻呼； 如果被叫 UE已经移动到新的位置区 /路由区， 并且没 有及时将新的位置信息上报给网络侧， 则网络侧在原来的位置区 /路由区将无 法寻呼到被叫 UE。 此时， 网络侧将自动扩大寻呼范围， 在原来的位置区 /路由 区的相邻位置区 /路由区二次寻呼被叫 UE, 从而提高寻呼成功率和被叫接通 率。
通过移动公网对集群系统用户进行寻呼的问题在于：如果采用一次寻呼的 方式， 则对用户寻呼的范围有限制， 仅仅针对一个位置区 /路由区； 如果采用 二次寻呼的方式， 则寻呼时延较大。 而且， 无论采用一次寻呼还是二次寻呼， 都只能在同一个核心网管辖的位置区 /路由区内寻呼 , 不支持跨核心网的寻呼。
针对分布式集群系统， 也没有提出具体的呼叫方法。 发明内容
有鉴于此，本发明解决的技术问题是针对分布式集群系统提供一种集群系 统中的寻呼方法和装置， 以扩大寻呼的范围， 缩短寻呼时延， 还可以支持跨 TRN的寻呼， 解决因用户高速移动而跨 TRN时寻呼不到的问题。
为此， 本发明提供的技术方案如下：
主叫用户设备 UE发起呼叫建立请求， 查找被叫 UE所在的位置区， 在所 述位置区和所述位置区的相邻位置区寻呼被叫 UE。
在实施例中， 按下述步骤查找被叫 UE所在的位置区：
主叫 UE所处的第一无线节点接收主叫 UE发送的呼叫建立请求消息； 当被叫 UE处于第一无线节点时， 由第一无线节点根据其保存的被叫 UE 的信息获得被叫 UE所在的位置区， 向主叫 UE发送呼叫建立响应消息；
当被叫 UE处于第二无线节点时， 路由查询到被叫 UE所处的第二无线节 点， 建立第一无线节点和第二无线节点之间的链路，发送呼叫建立请求消息到 第二无线节点， 由第二无线节点根据其保存的被叫 UE的信息获得被叫 UE所 在的位置区。
在实施例中， 当被叫 UE处于第一无线节点时， 按下述步骤寻呼被叫 UE: 当被叫 UE所在位置区的相邻位置区属于其它无线节点时， 第一无线节点 将所述相邻位置区的信息和所述呼叫建立请求消息发送给相应的无线节点； 第一无线节点在被叫 UE所在的位置区和属于本节点的相邻位置区寻呼被 叫 UE, 所述其它无线节点在相应的位置区寻呼被叫 UE。
在实施例中， 进一步包括：
被叫 UE在当前位置向其所处的当前无线节点发送寻呼响应消息，和该无 线节点建立移动性管理连接和无线资源管理连接。
在实施例中， 进一步包括：
当所述当前无线节点为第一无线节点时， 主、 被叫 UE建立通信； 当所述当前无线节点不是第一无线节点时，所述当前无线节点将寻呼响应 消息发送给第一无线节点， 第一无线节点和所述当前无线节点建立链路， 主、 被叫 UE建立通信。
在实施例中， 当被叫 UE处于第二无线节点时， 按下述步骤寻呼被叫 UE: 当被叫 UE所在位置区的相邻位置区属于其它无线节点时， 第二无线节点 将所述相邻位置区的信息和所述呼叫建立请求消息发送给相应的无线节点； 第二无线节点在被叫 UE所在的位置区和属于本节点的相邻位置区寻呼被 叫 UE, 所述其它无线节点在相应的位置区寻呼被叫 UE。
在实施例中， 进一步包括：
被叫 UE在当前位置向其所处的当前无线节点发送寻呼响应消息，和该无 线节点建立移动性管理连接和无线资源管理连接。
在实施例中， 进一步包括：
当所述当前无线节点为第二无线节点时， 主、 被叫 UE建立通信； 否则， 当所述当前无线节点为第一无线节点时，释放第一无线节点和第二无线节 点之间的链路， 完成主叫 UE的呼叫建立；
当所述当前无线节点为其它节点时，第二无线节点将所述当前无线节点的 信息发送给第一无线节点， 释放其和第一无线节点之间的链路；
第一无线节点向所述当前无线节点发送呼叫建立请求消息 ,在收到所述当 前无线节点发送的呼叫建立响应消息后， 完成主叫 UE的呼叫建立。
基于上述方法， 本发明还提供一种集群系统中的寻呼装置， 包括： 查询单元， 用于根据主叫用户设备 UE发起呼叫建立请求， 查找被叫 UE 所在的位置区；
寻呼单元， 用于在所述位置区和所述位置区的相邻位置区寻呼被叫 UE。 在实施例中， 所述查询单元包括：
接收单元， 用于接收主叫 UE发送的呼叫建立请求消息；
判断单元， 用于判断主、 被叫 UE是否都处于第一无线节点；
同节点查询单元， 用于当主、 被叫 UE都处于第一无线节点时， 根据第一 无线节点保存的被叫 UE的信息获得被叫 UE所在的位置区， 向主叫 UE发送 呼叫建立响应消息；
异节点查询单元， 用于当主叫 UE处于第一无线节点、 被叫 UE处于第二 无线节点时， 路由查询到被叫 UE所处的第二无线节点， 建立第一无线节点和 第二无线节点之间的链路，发送呼叫建立请求消息到第二无线节点， 由第二无 线节点根据其保存的被叫 UE的信息获得被叫 UE所在的位置区。
在实施例中， 所述寻呼单元包括：
位置区判断单元，用于判断被叫 UE所在位置区的相邻位置区是否属于其 它无线节点；
通知单元，用于当被叫 UE所在位置区的相邻位置区属于其它无线节点时， 将所述相邻位置区的信息和所述呼叫建立请求消息发送给所述其它无线节点； UE寻呼单元， 用于在被叫 UE所在的位置区和属于被叫 UE所在节点的 相邻位置区寻呼被叫 UE, 通知所述其它无线节点在相应的位置区寻呼被叫 UE。
在本发明中， 当主叫 UE发起呼叫请求时， 网络侧在查找被叫 UE所在的 位置区后， 将在所述位置区和所述位置区的相邻位置区寻呼被叫 UE。 可以看 出， 当被叫 UE在各位置区之间移动时， 无论被叫 UE是否能及时上报其当前 的位置信息， 无论网络侧是否知道被叫 UE的当前位置， 由于网络侧自动扩大 寻呼范围， 从而使网络侧一次寻呼到该 UE的几率大大增加， 并且缩短了寻呼 时延。 附图说明
图 1是分布式集群系统的网络结构示意图；
图 2是本发明方法实施例 1的流程图 ；
图 3是本发明方法实施例 2的流程图；
图 4是本发明方法实施例 2的信令流程图；
图 5是本发明方法实施例 3的流程图；
图 6是本发明装置的结构示意图。 具体实施方式
在本发明中， 当主叫 UE发起呼叫请求时， 网络侧在查找被叫 UE所在的 位置区后， 将在所述位置区和所述位置区的相邻位置区寻呼被叫 UE, 从而扩 大了寻呼的范围， 缩短寻呼时延。
当 UE1呼叫 UE2时， 此时， UE1为主叫 UE, UE2为被叫 UE, 假设 UE1 处在属于 TRN1的位置区 Al， UE2处在属于 TRN2的位置区 Bl， 位置区 B2、 B3是 B1的相邻位置区。
在实施例 1中， 当 UE1和 UE2处于相同的 TRN时， 即 TRN1和 TRN2 为相同的 TRN, 此时， UE1呼叫 UE2的流程入图 2所示。
在步骤 201中 , UE1向 TRN1发送呼叫建立请求消息， 即主叫 UE向网络 侧发起呼叫。
在步骤 202中 , TRN1收到该呼叫建立请求消息后 ,获得被叫 UE,即 UE2, 的号码， 获知 UE2属于本 TRN, 则 TRNl向 UE1返回呼叫建立响应消息， 并 在位置区 Bl， B1的相邻位置区 B2、 B3寻呼 UE2。
在步骤 203中， UE1收到呼叫建立响应消息后， 向 TRN1发送呼叫完成指 示消息。
在步骤 204中 , UE2收到寻呼消息 , 向 TRN1发送寻呼响应消息。
在步骤 205中 , TRN1和 UE2建立 MM和 RR连接。
在步骤 206中， UE1与 UE2建立通信， 进行通话。
在实施例 1中， 位置区 Bl、 B2和 B3都属于 TRNl , 当 UE2在所述 3个 位置区移动时， 无论 UE2是否及时上报其当前位置， TRN1都可以直接在所 述三个位置区寻呼到 UE2。
如果位置区 B3不属于 TRNl , 而属于 TRN3 , 则 TRN1不能直接在位置 区 B3寻呼 UE2。 此时， TRN1需要将呼叫建立请求消息和位置区 B3的信息 发送给 TRN3 , 由 TRN3在位置区 B3寻呼 UE2。
如果在网络侧发起寻呼时 , UE2移动到位置区 B3， 则 TRN3将收到 UE2 的寻呼响应消息 , 和 UE2建立移动性管理 ( MM, Mobility Management )和无 线资源管理 ( RR, Radio Resource Management )连接， 并将寻呼响应消息送 至 TRN1。 此时， TRN1和 TRN3将建立链路， UE1和 UE2建立通信， 进行通 话。
通过实施例 1可以看出， 当 UE2, 即被叫 UE, 在各位置区之间移动时， 无论被叫 UE是否能及时上报其当前的位置信息， 无论网络侧是否知道被叫 UE的实际当前位置， 由于网络侧自动扩大寻呼范围， 从而使网络侧一次寻呼 到该 UE的几率大大增加， 而且还缩短寻呼时延。
在实施例 2中， 当 UE1和 UE2处于相同的 TRN时， 即 TRN1和 TRN2 为不同的 TRN, 此时， UE1呼叫 UE2的流程如图 3所示。
在步骤 301中， UE1向 TRN1发送呼叫建立请求消息， 即主叫 UE向网络 侧发起呼叫。
在步骤 302中 ,路由查询过程， TRN1查询到 UE2处于 TRN2,并和 TRN2 建立链路。
在步骤 303中 , TRN1向 TRN2发送呼叫建立请求消息。 在步骤 304中， TRN2收到 TRN1发送的呼叫建立请求消息后， 如果发现 存在属于其它 TRN的相邻位置区， 则还要将呼叫建立请求消息发送给该相邻 位置区所属的 TRN。
例如：如果 TRN2发现位置区 B1的相邻位置区 B3属于 TRN3 ,则还要将 呼叫建立请求消息和位置区 B3的信息发送给 TRN3。
在步骤 305中，收到呼叫建立请求消息的 TRN在相应的位置区寻呼 UE2。 如果位置区 Bl、 B2和 B3都属于 TRN2, 则只有 TRN2在位置区 Bl、 B2 和 B3寻呼 UE2。 如果位置区 Bl、 B2属于 TRN2, 位置区 B3属于 TRN3 , 则 TRN3将收到 TRN2发送的呼叫建立请求消息和位置区 B3的信息。 此时， 不 仅 TRN2在位置区 B 1、 B2寻呼 UE2 ,而且 TRN3也将在在位置区 B3寻呼 UE2。
在步骤 306中 , UE2收到寻呼消息， 向其当前所处的 TRN发送寻呼响应 消息， 和当前所处的 TRN建立 MM和 RR连接。
如果 UE2在 TRN2管辖的位置区收到寻呼消息， 则向 TRN2发送寻呼响 应消息 , 和 TRN2建立 MM和 RR连接。 如果 UE2在 TRN3管辖的位置区收 到寻呼消息 , 则向 TRN3发送寻呼响应消息 , 和 TRN3建立 MM和 RR连接。
在步骤 307 中， 收到寻呼响应消息的 TRN将该寻呼响应消息发送给 TRN2。
假设 TRN3收到 UE2发送的寻呼响应消息 , TRN3将该消息发送给 TRN2 , 从而使 TRN2获知 UE2处于 TRN3。
在步骤 308中， TRN2将判断寻呼响应消息是否来自其它的 TRN。
如果是， 则在步骤 310， TRN2发起呼叫路由重配过程， 将 UE2当前所处 的 TRN的地址发送给 TRN1 , 并释放 TRN1和 TRN2之间的链路， 执行步骤 311。
否则， 在步骤 309中， UE1和 UE2建立通信， 进行通话。
在步骤 311中， TRN1向 UE2实际所处的 TRN发起呼叫建立请求。
假设 UE2实际所处的 TRN为 TRN3 ,则 UE2向 TRN3发送的寻呼响应消 息将被 TRN3发送到 TRN2, 并有 TRN2发起呼叫路由重配过程， 将 TRN3的 地址发送给 TRN1 ,并释放 TRN1和 TRN2之间的链路。然后 , TRN1将向 TRN3 发起呼叫建立请求。 在步骤 312中， UE2当前所处的 TRN响应 TRN1的呼叫建立请求。
在步骤 313中， TRN1向 UE1发送的呼叫建立响应消息， UE1向 TRN1 返回呼叫完成指示消息， 从而完成主叫 UE的呼叫建立。
可以看出， 在实施例 2中， 虽然主、被叫 UE不处于同一个 TRN, 但网络 侧对被叫 UE进行呼叫的原理与实施例 1完全相同， 即自动扩大寻呼范围， 从 而使网络侧一次寻呼到该 UE的几率大大增加， 而且还缩短寻呼时延。
在实施例 2中， 当 UE2所在的位置区 B1的相邻位置区有属于其它 TRN 的时候， 并且 UE2移动到该相邻位置区而未及时上报其当前位置， 图 4是基 于这种情况下的信令流程图。
在实施例 3中 ,如果 UE1和 UE2处于相同的 TRN但在发起寻呼时， UE2 移动进 UE1所处的 TRN, 即 TRN1 ,此时， UE1呼叫 UE2的流程如图 5所示。
在步骤 501中， UE1向 TRN1发送呼叫建立请求消息， 即主叫 UE向网络 侧发起呼叫。
在步骤 502中 ,路由查询过程， TRN1查询到 UE2处于 TRN2,并和 TRN2 建立链路。
在步骤 503中， TRN1向 TRN2发送呼叫建立请求消息。
在步骤 504中， TRN2收到 TRN1发送的呼叫建立请求消息后， 如果发现 存在属于其它 TRN的相邻位置区， 则还要将呼叫建立请求消息发送给该相邻 位置区所属的 TRN。
例如：如果 TRN2发现位置区 B1的相邻位置区 B3属于 TRN1 ,则还要将 呼叫建立请求消息和位置区 B3的信息发送给 TRN1。
在步骤 505中，收到呼叫建立请求消息的 TRN在相应的位置区寻呼 UE2。 如果位置区 Bl、 B2和 B3都属于 TRN2, 则只有 TRN2在位置区 Bl、 B2 和 B3寻呼 UE2。 如果位置区 Bl、 B2属于 TRN2, 位置区 B3属于 TRN1 , 则 TRN1将收到 TRN2发送的呼叫建立请求消息和位置区 B3的信息。 此时， 不 仅 TRN2在位置区 B 1、 B2寻呼 UE2 ,而且 TRN1也将在在位置区 B3寻呼 UE2。
在步骤 506中 , UE2收到寻呼消息， 向其当前所处的 TRN发送寻呼响应 消息 , 和相应的 TRN建立 MM和 RR连接。
如果 UE2在 TRN2管辖的位置区收到寻呼消息， 则向 TRN2发送寻呼响 应消息， 和 TRN2建立 MM和 RR连接。 如果 UE2在 TRN1管辖的位置区收 到寻呼消息 , 则向 TRN1发送寻呼响应消息 , 和 TRN1建立 MM和 RR连接。
在步骤 507中 , TRN1如果收到 UE2发送的寻呼响应消息， 则通知 TRN2 进行呼叫路由重配。
TRN2收到 TRN1发送的路由重配通知后 ,将释放其和 TRN1之间的链路。 在步骤 508中， TRN1向 UE1发送的呼叫建立响应消息， UE1向 TRN1 返回呼叫完成指示消息， 从而完成主叫 UE的呼叫建立。
基于上述方法，本发明还提供一种集群系统中的寻呼装置， 图 6示出了该 装置的结构， 该装置包括查询单元 61和寻呼单元 62。 查询单元 61 包括接收 单元 611、 判断单元 612、 同节点查询单元 613和异节点查询单元 614。 寻呼 单元 62包括位置区判断单元 621、 通知单元 622和 UE寻呼单元 623。 在系统 运行时， 所有的 TRN中都具备该装置， 当主叫 UE发起呼叫时， 该装置根据 其所处的 TRN, 实现相应的功能。
当 UE1呼叫 UE2时， 此时， UE1为主叫 UE, UE2为被叫 UE, 假设 UE1 处在属于 TRN1的位置区 Al， UE2处在属于 TRN2的位置区 Bl， 位置区 B2、 B3是 B1的相邻位置区。
当 UE1向网络侧发送呼叫建立请求消息时， 在 TRN1中， 通过该寻呼装 置中的查询单元 61根据 UE1发起呼叫建立请求消息， 查找被叫 UE, 即 UE2, 所在的位置区， 并利用寻呼单元 62在 UE2所在的位置区和该位置区的相邻位 置区寻呼 UE2。
当 UE1向网络侧发送呼叫建立请求消息时， 该装置通过接收单元 611在 TRN1接收 UE1发送的呼叫建立请求消息， 并利用判断单元 612判断 UE1和 UE2是否都处于相同的无线节点。
当 UE1和 UE2在同一个 TRN时， 即 TRN1和 TRN2为相同的 TRN, 此 时， 同节点查询单元 613根据 TRN1保存的 UE2的信息获得 UE2所在的位置 区， 即位置区 Bl， 并向 UE1发送呼叫建立响应消息。
然后，该寻呼装置通过位置区判断单元 621判断位置区 B1的相邻位置区， 即位置区 B2、 B3，是否有属于其它 TRN的。 当存在相邻位置区属于其它 TRN 时， ϋ殳位置区 Β3位于其它 TRN, 则利用通知单元 622将位置区 Β3的信息 和 UE1发送的呼叫建立请求消息发送给位置区 B3所属的 TRN。
最后， 该寻呼装置通过 UE寻呼单元 623在位置区 B1和相邻位置区 B2 寻呼 UE2, 通知位置区 B3所属的 TRN在位置区 B3寻呼 UE2。
当 UE1和 UE2不在同一个 TRN时，即 TRN1和 TRN2不是同一个 TRN, 此时，异节点查询单元 614路由查询到 UE2所处的 TRN2,建立 TRN1和 TRN2 之间的链路， 发送呼叫建立请求消息到 TRN2, 由 TRN2根据其保存的 UE2 的信息获得 UE2所在的位置区， 即位置区 Bl。
在 TRN2中 , 该寻呼装置通过位置区判断单元 621判断位置区 B1的相邻 位置区， 即位置区 B2、 B3， 是否有属于其它 TRN的。 当存在相邻位置区属于 其它 TRN时， 假设位置区 B3位于其它 TRN, 则利用通知单元 622将位置区 B3的信息和 UE1发送的呼叫建立请求消息发送给位置区 B3所属的 TRN。
然后， 该寻呼装置通过 UE寻呼单元 623在位置区 B1和相邻位置区 B2 寻呼 UE2, 通知位置区 B3所属的 TRN在位置区 B3寻呼 UE2。
可以看出， 当 UE2在各位置区之间移动时， 无论 UE2是否能及时上报其 当前的位置信息， 无论网络侧是否知道 UE2的当前位置， 由于网络侧自动扩 大寻呼范围， 从而使网络侧一次寻呼到该 UE的几率大大增加。
本领域技术人员可以明白，这里结合所公开的实施例描述的各种示例性的 方法步骤和装置单元均可以电子硬件、软件或二者的结合来实现。 为了清楚地 示出硬件和软件之间的可交换性 ,以上对各种示例性的步骤和单元均以其功能 性的形式进行总体上的描述。这种功能性是以硬件实现还是以软件实现依赖于 特定的应用和整个系统所实现的设计约束。本领域技术人员能够针对每个特定 的应用， 以多种方式来实现所描述的功能性，但是这种实现的结果不应解释为 倒是背离本发明的范围。
利用通用处理器、 数字信号处理器（DSP )、 专用集成电路（ASIC )、 现场 可编程门阵列（FPGA )或者其它可编程的逻辑器件、分立门或者晶体管逻辑、 分立硬件组件或者他们之中的任意组合，可以实现或执行结合这里公开的实施 例描述的各种示例性的单元。通用处理器可能是微处理器，但是在另一种情况 中， 该处理器可能是任何常规的处理器、 控制器、 微控制器或者状态机。 处理 器也可能被实现为计算设备的组合， 例如， DSP和微处理器的组合、 多个微处 理器、 一个或者更多结合 DSP核心的微处理器或者任何其他此种结构。
结合上述公开的实施例所描述的方法的步骤可直接体现为硬件、由处理器 执行的软件模块或者这二者的组合。软件模块可能存在于 RAM存储器、闪存、 ROM存储器、 EPROM存储器、 EEPROM存储器、 寄存器、 硬盘、 移动磁盘、 CD-ROM或者本领域熟知的任何其他形式的存储媒质中。 一种典型存储媒质 与处理器耦合，从而使得处理器能够从该存储媒质中读信息，且可向该存储媒 质写信息。 在替换实例中， 存储媒质是处理器的组成部分。 处理器和存储媒质 可能存在于一个 ASIC中。 该 ASIC可能存在于一个用户站中。 在一个替换实 例中 , 处理器和存储媒质可以作为用户站中的分立组件存在。
以上所述的实施例仅为本发明的较佳实施例而已， 并不用以限制本发明， 凡在本发明的精神和原则之内， 所作的任何修改、 等同替换、 改进等， 均应包 含在本发明的保护范围之内。

Claims

权 利 要 求
1、 一种集群系统中的寻呼方法， 其特征在于， 包括：
主叫用户设备 UE发起呼叫建立请求， 查找被叫 UE所在的位置区， 在所 述位置区和所述位置区的相邻位置区寻呼被叫 UE。
2、 根据权利要求 1 所述的方法， 其特征在于， 按下述步骤查找被叫 UE 所在的位置区：
主叫 UE所处的第一无线节点接收主叫 UE发送的呼叫建立请求消息； 当被叫 UE也处于第一无线节点时， 由第一无线节点根据其保存的被叫
UE的信息获得被叫 UE所在的位置区， 向主叫 UE发送呼叫建立响应消息； 当被叫 UE处于第二无线节点时， 路由查询到被叫 UE所处的第二无线节 点， 建立第一无线节点和第二无线节点之间的链路，发送呼叫建立请求消息到 第二无线节点， 由第二无线节点根据其保存的被叫 UE的信息获得被叫 UE所 在的位置区。
3、 根据权利要求 2所述的方法， 其特征在于， 当被叫 UE处于第一无线 节点时， 按下述步骤寻呼被叫 UE:
当被叫 UE所在位置区的相邻位置区属于其它无线节点时， 第一无线节点 将所述相邻位置区的信息和所述呼叫建立请求消息发送给相应的无线节点； 第一无线节点在被叫 UE所在的位置区和属于本节点的相邻位置区寻呼被 叫 UE, 所述其它无线节点在相应的位置区寻呼被叫 UE。
4、 根据权利要求 3所述的方法， 其特征在于， 进一步包括：
被叫 UE在当前位置向其所处的当前无线节点发送寻呼响应消息，和该无 线节点建立移动性管理连接和无线资源管理连接。
5、 根据权利要求 4所述的方法， 其特征在于， 进一步包括：
当所述当前无线节点为第一无线节点时， 主、 被叫 UE建立通信； 当所述当前无线节点不是第一无线节点时，所述当前无线节点将寻呼响应 消息发送给第一无线节点， 第一无线节点和所述当前无线节点建立链路， 主、 被叫 UE建立通信。
6、 根据权利要求 2所述的方法， 其特征在于， 当被叫 UE处于第二无线 节点时， 按下述步骤寻呼被叫 UE: 当被叫 UE所在位置区的相邻位置区属于其它无线节点时， 第二无线节点 将所述相邻位置区的信息和所述呼叫建立请求消息发送给相应的无线节点； 第二无线节点在被叫 UE所在的位置区和属于本节点的相邻位置区寻呼被 叫 UE, 所述其它无线节点在相应的位置区寻呼被叫 UE。
7、 根据权利要求 6所述的方法， 其特征在于， 进一步包括：
被叫 UE在当前位置向其所处的当前无线节点发送寻呼响应消息，和该无 线节点建立移动性管理连接和无线资源管理连接。
8、 根据权利要求 7所述的方法， 其特征在于， 进一步包括：
当所述当前无线节点为第二无线节点时， 主、 被叫 UE建立通信； 否则， 当所述当前无线节点为第一无线节点时，释放第一无线节点和第二无线节 点之间的链路， 完成主叫 UE的呼叫建立；
当所述当前无线节点为其它节点时，第二无线节点将所述当前无线节点的 信息发送给第一无线节点， 释放其和第一无线节点之间的链路；
第一无线节点向所述当前无线节点发送呼叫建立请求消息，在收到所述当 前无线节点发送的呼叫建立响应消息后， 完成主叫 UE的呼叫建立。
9、 一种集群系统中的寻呼装置， 其特征在于， 包括：
查询单元 , 用于根据主叫用户设备 UE发起呼叫建立请求 , 查找被叫 UE 所在的位置区；
寻呼单元， 用于在所述位置区和所述位置区的相邻位置区寻呼被叫 UE。
10、 根据权利要求 9所述的装置， 其特征在于， 所述查询单元包括： 接收单元， 用于接收主叫 UE发送的呼叫建立请求消息；
判断单元， 用于判断主、 被叫 UE是否都处于第一无线节点；
同节点查询单元， 用于当主、 被叫 UE都处于第一无线节点时， 根据第一 无线节点保存的被叫 UE的信息获得被叫 UE所在的位置区， 向主叫 UE发送 呼叫建立响应消息；
异节点查询单元， 用于当主叫 UE处于第一无线节点、 被叫 UE处于第二 无线节点时， 路由查询到被叫 UE所处的第二无线节点， 建立第一无线节点和 第二无线节点之间的链路，发送呼叫建立请求消息到第二无线节点， 由第二无 线节点根据其保存的被叫 UE的信息获得被叫 UE所在的位置区。
11、 根据权利要求 10所述的装置， 其特征在于， 所述寻呼单元包括： 位置区判断单元，用于判断被叫 UE所在位置区的相邻位置区是否属于其 它无线节点；
通知单元，用于当被叫 UE所在位置区的相邻位置区属于其它无线节点时， 将所述相邻位置区的信息和所述呼叫建立请求消息发送给所述其它无线节点；
UE寻呼单元， 用于在被叫 UE所在的位置区和属于被叫 UE所在节点的 相邻位置区寻呼被叫 UE, 通知所述其它无线节点在相应的位置区寻呼被叫 UE。
PCT/CN2007/071091 2006-11-24 2007-11-19 Method and device for paging in trunking system WO2008061474A1 (en)

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