WO2013078959A1 - 集群系统中动态重组的方法、系统及交换机 - Google Patents
集群系统中动态重组的方法、系统及交换机 Download PDFInfo
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- WO2013078959A1 WO2013078959A1 PCT/CN2012/085096 CN2012085096W WO2013078959A1 WO 2013078959 A1 WO2013078959 A1 WO 2013078959A1 CN 2012085096 W CN2012085096 W CN 2012085096W WO 2013078959 A1 WO2013078959 A1 WO 2013078959A1
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- terminal
- group
- subscription information
- switch
- group subscription
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/08—User group management
Definitions
- the present invention relates to mobile communication technologies, and in particular, to a method, system, and switch for dynamic reassembly in a cluster system. Background technique
- a trunking communication system dynamic reorganization is initiated by the dispatching station.
- Some mobile stations are grouped into temporary groups, and members in the temporary group can be added and deleted through signaling or the entire temporary group can be deleted.
- Fire trucks, firefighters, police and building staff are in their respective communication groups.
- the dispatching command center can divide the fire truck, firefighters, police and building staff into a dynamic group. , All personnel are uniformly dispatched and commanded to more effectively eliminate fires. After the fire is extinguished, the dispatching command center can delete the dynamic group, and the original staff member returns to the fixed group.
- the subscription information of the mobile station that needs to be dynamically reorganized is stored in the user subscription data server; the subscriber subscription data server sends the subscription information of the mobile station to the network side switch, the network The switch on the side controls the terminal to complete dynamic reorganization according to the subscription information sent by the user subscription data server.
- the inventor has found that at least the following problems exist in the prior art: If the group subscription information sent by the user subscription data server to the network side switch is concentrated in a short time, the network side switch will be caused in a short time. The group subscription information is sent to the terminal frequently, and even a signaling storm occurs on the air interface between the network-side switch and the terminal. Summary of the invention
- the invention provides a method, a system and a switch for dynamic reorganization in a cluster system, which are used to solve the problem that the switch frequently sends information to the terminal and causes an air interface signaling storm when the dynamic reorganization is implemented in the prior art.
- the present invention provides a method for dynamic reorganization in a cluster system, including:
- the switch receives the group subscription information sent by the user subscription data server, in the buffer that has been started. If the timer is not finished, the buffer timer is reset, and the group subscription information includes a group identifier and a terminal identifier belonging to the group;
- the switch After the buffer timer expires, the switch acquires all group subscription information corresponding to each of the terminal identifiers according to the terminal identifier in the received group subscription information; Each group subscription information corresponding to each of the terminal identifiers is sent to a terminal corresponding to each of the terminal identifiers to implement dynamic reorganization.
- the invention provides a switch, comprising:
- a receiving module configured to receive group subscription information sent by the user subscription data server, and reset the buffer timer if the started buffer timer timing is not completed, where the group subscription information includes a group Group identification and terminal identification belonging to the group;
- an obtaining module configured to acquire, after the timing of the buffering timer, all the group subscription information corresponding to each of the terminal identifiers according to the terminal identifier in the received group subscription information;
- a sending module configured to send the obtained all the group subscription information corresponding to each of the terminal identifiers to the terminal corresponding to each of the terminal identifiers to implement dynamic reorganization.
- the present invention provides a system for dynamic reorganization in a cluster system, including any of the switches and user subscription data servers provided by the present invention.
- the switch receives the group subscription information sent by the user subscription data server, and if the started buffer timer timing is not over, the buffer timer is After the buffer timer expires, all the group subscription information corresponding to each terminal is obtained from the received group subscription information according to the terminal identifier in the group subscription information, and then sent to each group.
- Each terminal implements dynamic reorganization, resets the buffer timer every time the group subscription information is received, and only performs the sending operation after the buffer timer expires, which solves the problem that the user subscribes to the data server in a short time.
- FIG. 1 is a flowchart of a method for dynamically reorganizing a cluster system according to an embodiment of the present invention
- 2A is a flowchart of a method for dynamically reorganizing in a cluster system according to another embodiment of the present invention
- 2B is a flowchart of a switch actively pushing a group subscription information to a terminal according to another embodiment of the present invention
- 2C is a flowchart of a terminal actively requesting a switch to send a group subscription information according to another embodiment of the present invention
- FIG. 3 is a schematic structural diagram of a switch according to an embodiment of the present invention.
- FIG. 4 is a schematic structural diagram of a switch according to another embodiment of the present invention.
- FIG. 5 is a schematic structural diagram of a system for dynamic reorganization in a cluster system according to an embodiment of the present invention.
- 1 is a flowchart of a method for dynamic reorganization in a cluster system according to an embodiment of the present invention. As shown in FIG. 1, the method of this embodiment includes:
- Step 101 The switch receives the group subscription information sent by the user subscription data server, and resets the buffer timer if the started buffer timer timing is not completed.
- each terminal when dynamic reorganization is required, each terminal pre-signs and stores the group subscription information on the user subscription data server.
- the group subscription information mainly includes: group information subscribed by the user, information of the user, and authority information of the user in the group.
- the group information subscribed by the user mainly refers to the group name, the group identifier, and the like; the user information mainly refers to the number, user name, terminal identifier, and the like of the terminal corresponding to the user; Yes: Emergency call rights, normal call rights, called rights, etc.
- the user subscription data server when there is a new group to be established, or when there is already a change in the group information, for example, when a new user terminal joins or quits, the user subscription data server will have a changed group.
- the group subscription information is sent to the switch in the core network.
- the switch of the core network receives the group subscription information sent by the user subscription data server.
- the operations of establishing a new group, changing the existing group information, and the like may be performed by an administrator, and the user subscription data server may send the group subscription information by the administrator, but is not limited thereto.
- the administrator can also be responsible for maintaining the user's subscription data server.
- the server When a new establishment or change of a group occurs more frequently in a short period of time, the user signs the data service. In a short period of time, the server frequently sends the group subscription information to the switch of the core network, which causes the group subscription information sent by the user subscription data server to the switch to be concentrated in a short time.
- the switch of the core network once the switch of the core network receives the group subscription information, it immediately sends the received group subscription information to the terminal in the group.
- the switch of the core network When a terminal joins multiple groups at the same time, and the multiple groups joined by the terminal change in a short time, the switch of the core network frequently sends the group subscription information to the terminal in a short time. When a certain level is reached, an air interface signaling storm is triggered.
- the switch in this embodiment presets a buffer timer, and presets the timing time of the buffer timer, and specifies the group subscription information to be received after the buffer timer expires. Sending to the corresponding terminal, buffering the group subscription information to the terminal by setting a buffer timer and specifying the usage characteristics of the buffer timer.
- the timing of the buffer timer can be adaptively set according to the actual application scenario, and modification is allowed.
- the switch starts the buffer timer when it starts up or when it receives the group subscription information for the first time.
- the switch receives the group subscription information sent by the user group signing server. If the buffer timer that has been started when the group subscription information is received ends, the buffer timer is reset, that is, the buffer is buffered. The timer is cleared to reset the buffer timer. In this way, when the subscriber contracted data server centrally sends the group subscription information in a short time, the switch will frequently receive the group subscription information, and will frequently reset the buffer timer before the buffer timer expires.
- the subscriber subscription data server centrally sends the group subscription information to the switch in a short time, since the buffer timer is reset before the timing ends, the switch frequently receives the group subscription information.
- the group subscription information does not need to be sent to the terminal frequently, and the buffering of the group subscription information is realized.
- Step 102 After the buffer timer expires, the switch acquires all group subscription information corresponding to each terminal identifier according to the terminal identifier in the received group subscription information.
- the switch can send the received group subscription information to the terminal.
- the switch classifies the group subscription information received during the period according to the terminal identifier included in each group subscription information, and obtains all group subscription information corresponding to each terminal. .
- Each of the terminal identifiers uniquely corresponds to one terminal, and the group subscription information corresponding to each terminal identifier is group subscription information corresponding to each terminal.
- Each terminal can join multiple groups at the same time.
- the switch obtains all the group subscription information that needs to be sent to each terminal, and lays the foundation for sending the group subscription information to the terminal at one time for the subsequent steps.
- the switch needs to reset the buffer timer to prepare for subsequent reception and transmission of the group subscription information.
- the switch can reset the buffer timer according to the trigger of the group subscription information received again.
- the switch may also set a restart interval according to the actual application, and reset the buffer timer when the restart interval is reached after the buffer timer expires.
- Step 103 The switch sends all the group subscription information corresponding to each terminal identifier to the terminal corresponding to each terminal identifier to implement dynamic reorganization.
- the switch of the core network needs to separately send the group subscription information of the dynamic group to each terminal in the dynamic group, so as to truly implement dynamic re-grouping.
- the switch For a terminal that joins multiple groups at the same time, the switch sends all the group subscription information corresponding to the terminal to the terminal through the air interface with the terminal.
- This transmission method significantly reduces the number of times the information is transmitted to the terminal through the air interface, as compared with the prior art in which a group subscription information is transmitted every time a group subscription information is received.
- the problem that the switch frequently sends the group subscription information to the terminal when the switch receives the group subscription information set in a short time is solved, and the air interface signaling storm caused by the problem is solved.
- the buffer timer is reset, and only after the buffer timer expires, according to the terminal identifier in the group subscription information, All the group subscription information corresponding to each terminal is obtained in the received group subscription information, and then all group subscription information corresponding to each terminal is sent to each terminal at a time to implement dynamic reorganization.
- the switch resets the buffer timer every time the group subscription information is received by setting the buffer timer, and the group subscription information is sent to the terminal only after the buffer timer expires.
- the process of the group issuing the group subscription information to the terminal is independent of the process of the switch continuing to receive the group subscription information, and does not affect each other.
- the switch can not send the received group subscription information to the terminal for a long time, and the switch in this embodiment is also configured.
- a counter is used to count the number of times the buffer timer is reset from startup to the end of the timer, and also sets the reset threshold. When the number of resets of the buffer timer reaches the reset threshold, it indicates that a certain number of group subscription information has been received, and the group subscription information has not been sent to the terminal for some time, so the switch buffers the timer.
- the current timing state is set to the timing end state, so that the buffer timer is timed out, so as to send the received group subscription information to the terminal.
- the switch clears the reset count of the buffer timer to 0, so that the number of times the buffer timer is reset is re-counted after the buffer timer is reset or restarted. After that, when the switch receives the group subscription information sent by the user subscription data server, the buffer timer is reset.
- FIG. 2 is a flowchart of a method for dynamically reorganizing in a cluster system according to another embodiment of the present invention. As shown in FIG. 2A, the method in this embodiment includes:
- Step 201 When a new group is established or a group that already exists changes, the user subscription data server sends the group subscription information to the switch of the core network.
- the sent group subscription information is group subscription information of the newly established group or group subscription information of the changed one.
- Step 202 The switch of the core network receives the group subscription information sent by the user subscription data server, and resets the buffer timer when receiving the group subscription information.
- Step 203 After the buffer timer expires, the switch resets the buffer timer, and obtains, according to the terminal identifier in the received group subscription information, all group subscription information corresponding to each terminal identifier, and simultaneously The download flag corresponding to each terminal identifier is set to true (Ture), indicating that group subscription information needs to be sent to these terminals.
- Ture true
- the user subscription data server After the buffer timer is reset, when a new group is established or a group change has occurred, the user subscription data server will continue to send the group subscription information or change of the newly established group to the switch of the core network. Group signing information. The switch will continue to receive group subscription information.
- the switch After the buffer timer expires, the switch obtains all the group subscription information corresponding to each terminal, and sets the download flag of each terminal to true to indicate that the group subscription information needs to be sent to these terminals. At the same time, after the buffer timer expires, the switch resets the buffer timer.
- Step 204 The switch sends all the group subscription information corresponding to each terminal identifier to the terminal corresponding to each terminal identifier to implement dynamic reorganization.
- the switch may send the group subscription information to each terminal in different manners according to the state of the terminal.
- the switch may send the group subscription information to the corresponding terminal through a Non-Access Stratum (NAS) process.
- NAS Non-Access Stratum
- the switch sends all the group subscription information corresponding to the terminal to the base station, and the base station sends a download command to the terminal; after receiving the download instruction of the base station, the terminal downloads all the corresponding group subscription information from the base station, and after the download is completed, Returning the download completion message to the base station; after receiving the download completion message of the terminal, the base station returns a download end message to the switch, so as to complete the delivery of the group subscription information.
- NAS Non-Access Stratum
- the switch When the terminal is in the idle state, the switch initiates a paging (PAGING) procedure to the terminal to notify the terminal to establish a signaling connection. After the switch establishes a signaling connection with the terminal, the switch sends all the group subscription information corresponding to the terminal to the terminal through the NAS message.
- PAGING paging
- the switch can send all the group subscription information corresponding to the terminal to the corresponding terminal through the NAS message after the terminal is online.
- the switch may also send all group subscription information corresponding to the terminal to the terminal through the NAS process according to the download request of the terminal.
- the switch sends the group subscription information to the terminal through the base station.
- the switch needs to send the group subscription information to a large number of terminals, so that the switch can send the group subscription information to the large number of terminals at the same time, causing traffic imbalance and air interface signaling storm, so that the switch can successfully All the group subscription information corresponding to the terminal is successfully sent to each terminal.
- This embodiment provides an implementation manner in which the switch sends all the group subscription information corresponding to the terminal to each terminal, specifically: the switch presets the sending period. For example, it is sent every 1 minute, and the number of terminals that can be sent in each transmission period is specified in advance. For example, it is specified that only group subscription information can be sent to 20 terminals in each transmission period.
- the switch can send group subscription information to a specified number of terminals within a preset sending period.
- the switch when the terminal is in the connected state, the switch can start the NAS process every one minute, and select a specified number from the remaining terminals, and all the group subscription information corresponding to each terminal is respectively determined by the NAS process. Send to the selected terminal.
- the remaining terminal refers to a terminal that has not sent the group subscription information to the switch according to the sending period.
- This embodiment includes:
- Step 2a When the preset transmission period arrives, the switch of the core network sends a paging (PAGING) message to the base station of the coverage terminal.
- the number of PAGING messages sent in each sending period is the specified number of terminals, and is set to N, where N is an integer greater than or equal to 1.
- N is an integer greater than or equal to 1.
- the N PAGING messages sent by the switch to the base station are the first PAGING message to the Nth PAGING message, respectively.
- Step 2b The base station forwards the PAGING message to the corresponding N terminals.
- the corresponding terminals are N.
- Step 2c After receiving the PAGING message, each terminal establishes a signaling connection with the switch through the base station.
- Step 2d After the signaling connection is established, the switch sends all group subscription information corresponding to each terminal to the base station.
- All group subscription information corresponding to each terminal is all group subscription information corresponding to the terminal identifier of each terminal.
- Step 2e The base station sends a group subscription information download instruction to each terminal.
- Step 2f Each terminal downloads all group subscription information that is adapted to itself according to the group subscription information download instruction, and returns a download completion message to the base station after the download is completed, to report Know that the base station download is over.
- Step 2g The base station sends a download end message to the switch to notify the switch that the download ends.
- the switch When the switch receives the download end message, it will set the download flag of the terminal to false.
- Step 2h When the next transmission period arrives, the switch of the core network sends a PAGING message to the base station of the coverage terminal. As shown in FIG. 2B, during the transmission period, the N PAGING messages sent by the switch to the base station are the N+1 PAGING message to the 2N PAGING message, respectively.
- the switch selects N terminals from the remaining terminals according to the download flag, so as to establish a signaling connection with the N terminals through the base station, and send the group subscription information to the N terminals.
- the switch sets a transmission period, and when the transmission period arrives, the base station initiates a paging procedure to the terminal, and further sets a paging to only a specified number of terminals in each paging procedure. Sending all the group subscription information corresponding to each group to a batch of terminals during the transmission period, and transmitting all the group subscription information corresponding to each group to another batch of terminals in the next transmission period, and preventing the occurrence by setting the transmission period and the specified number.
- the air interface signaling storm also ensures the balance of traffic.
- the foregoing implementation manner is mainly a manner in which a switch actively pushes group subscription information to a terminal.
- the active push mode is mainly applied to the terminal just after booting; after the terminal card machine, the switch usually pushes the group subscription information to the terminal according to the group change or new build.
- the present embodiment also allows the terminal to actively initiate downloading of all the group subscription information corresponding to the terminal, and the switch delivers all the group subscription information corresponding to the terminal to the terminal according to the download request of the terminal.
- the implementation mainly includes:
- Step 21 The terminal sends a group download request to the base station, where the download request includes a terminal identifier.
- Steps 21 and 22 describe the process in which the terminal actively sends a group download request to the switch.
- Step 23 The switch sends all group subscription information corresponding to the terminal to the base station according to the terminal identifier in the group download request. After receiving the download request, the switch obtains the terminal identifier of the terminal that sends the download request. Then, the switch obtains all group subscription information corresponding to the terminal from all the group subscription information corresponding to each terminal identifier, and sends all group subscription information corresponding to the terminal to the terminal identifier according to the terminal identifier. Base station.
- Step 24 The base station sends a group subscription information download instruction to the terminal.
- Step 25 The terminal downloads all the group subscription information corresponding to the base station according to the group subscription information download instruction of the base station, and sends a download completion message to the base station after the download is completed.
- Step 26 After receiving the download completion message, the base station sends a download end message to the switch to notify the switch that the download is complete.
- the above steps 23 to 26 describe the process in which the switch sends all group subscription information corresponding to the terminal to the terminal.
- the switch can simultaneously respond to the requests of the terminals. If there are a large number of terminals simultaneously requesting to download all the group subscription information corresponding to the download, in order to avoid the air interface signaling storm, the switch may send the corresponding period according to the preset transmission period and only to the specified number of terminals in each transmission period. All the group subscription information, that is, the switch sends all the group subscription information corresponding to the terminal to the terminal in the corresponding transmission period of the terminal.
- a terminal threshold may be preset, and when the number of terminals requesting the download of all the group subscription information corresponding to the download is lower than the terminal threshold, it is considered that all the terminals corresponding to the download are simultaneously initiated.
- the request for group signing information is conversely considered to be a request for a large number of terminals to simultaneously initiate downloading of all group signing information corresponding to the group.
- the terminal threshold value may be set according to actual conditions, and the specific value is not limited in this embodiment.
- the sending period, the specified number, and the timing time of the buffering timer allow the tracking area update process (TA), the base station, or the entire network to be configurable to ensure flexibility of dynamic reorganization. .
- the switch sets the cache time of the group subscription information, and caches the group subscription information in a certain period of time, thereby preventing the same group subscription information from being repeatedly received and causing repeated transmission to the terminal, to a certain extent.
- the probability of causing a storm of mouth-to-air signaling is reduced.
- the batch-time transmission of the group subscription information is realized, thereby further reducing the air interface signaling wind.
- the probability of a violent occurrence The configurability of the cache time, the send cycle, and the specified number guarantees the flexibility of the dynamic reorganization process.
- FIG. 3 is a schematic structural diagram of a switch according to an embodiment of the present invention. As shown in FIG. 3, the switch in this embodiment includes: a receiving module 31, an obtaining module 32, and a sending module 33.
- the receiving module 31 is connected to the buffer timer, and configured to receive the group subscription information sent by the user subscription data server, and reset the buffer timer if the started buffer timer timing is not completed.
- the group subscription information includes a group identifier and a terminal identifier belonging to the group.
- the obtaining module 32 is configured to be connected to the receiving module 31 and the buffering timer, and configured to acquire, according to the terminal identifier in the group subscription information received by the receiving module 31, the terminal identifier corresponding to each terminal identifier after the buffering timer expires. All group signing information.
- the sending module 33 is connected to the obtaining module 32, and is configured to send all the group subscription information corresponding to each terminal identifier acquired by the obtaining module 32 to the terminal corresponding to each terminal identifier to implement dynamic reorganization.
- the function modules of the switch in this embodiment can be used to perform the method of dynamic reassembly in the cluster system shown in FIG. 1.
- the specific working principle is not described here. For details, refer to the description of the method embodiments.
- the switch of the embodiment when receiving the group subscription information sent by the user subscription data server, resets the buffer timer, and only after the buffer timer expires, the terminal identifier in the group subscription information is used. All group subscription information corresponding to each terminal is obtained from the received group subscription information, and then sent to each terminal to implement dynamic reorganization, and the buffer timer is reset every time the group subscription information is received. And the method of performing the sending operation only after the buffering timer expires, which solves the problem that the switch frequently sends the group subscription information to the terminal when the user subscription data server sends the group subscription information to the switch in a short time. The air interface signaling storm caused by the switch frequently sending group subscription information to the terminal is avoided.
- FIG. 4 is a schematic structural diagram of a switch according to another embodiment of the present invention. The embodiment is implemented based on the embodiment shown in FIG. 3. As shown in FIG. 4, the switch in this embodiment further includes: a reset processing module 34.
- the reset processing module 34 is connected to the buffer timer, and is configured to set the buffer timer from the current timing state to the timing end state when the reset count of the buffer timer reaches the preset reset count threshold, and The number of resets of the buffer timer is cleared to zero.
- the transmitting module 33 of this embodiment includes: a first sending unit 331 and a second sending unit 332.
- the first sending unit 331 is connected to the acquiring module 32, and configured to send a paging message to the specified number of terminals according to the terminal identifier to establish a signaling connection with the specified number of terminals in the preset sending period.
- the second sending unit 332 is connected to the first sending unit 331, and is configured to: after the first sending unit 33 1 connects to the designated number of terminals, connect all the groups corresponding to each of the specified number of terminals. Group subscription information is sent to each terminal.
- the above functional unit can be used to execute the process of the method shown in FIG. 2B, and the specific working principle is not described again. For details, refer to the description of the method embodiment.
- the sending module 33 of this embodiment may further include: a receiving unit 333 and a third sending unit 334.
- the receiving unit 333 is configured to receive a group download request sent by the terminal, where the group download request includes a terminal identifier.
- the third sending unit 334 is connected to the receiving unit 333, and is configured to send, after the receiving unit 333 receives the group download request, all the group subscription information corresponding to the terminal to the terminal.
- the third sending unit 334 is specifically configured to send, to the terminal, all the group subscription information corresponding to the terminal in the sending period corresponding to the terminal.
- the above functional unit can be used to execute the process of the method shown in FIG. 2C, and the specific working principle is not described again. For details, refer to the description of the method embodiment.
- the switch of this embodiment sets the buffer timer, and resets the buffer timer before the end of the buffer timer by each time the group subscription information is received, and only after the buffer timer expires
- the operation mode of all the group subscription information corresponding to the terminal is sent to the terminal at one time, which solves the problem that the switch frequently sends the group subscription information to the terminal when the user subscription data server sends the group subscription information to the switch in a short time.
- the air interface signaling storm caused by the switch frequently sending group subscription information to the terminal is avoided.
- the switch in this embodiment sends all the group subscription information corresponding to all the terminals to each terminal in a timely manner, and the traffic is balanced and the load of the switch is balanced. The air interface signaling storm is further prevented.
- FIG. 5 is a schematic structural diagram of a system for dynamic reorganization in a cluster system according to an embodiment of the present invention. As shown in FIG. 5, the system of this embodiment includes: a switch 51 and a subscriber subscription data server 52.
- the switch 51 can use the switch provided by the foregoing embodiment of the present invention.
- For the working principle refer to the description of the method shown in FIG. 1 to FIG. 2C.
- the implementation structure can be seen in FIG. 3 or FIG. Show, no longer repeat them here.
- system of this embodiment further includes: a base station 53 and a terminal 54.
- the subscriber subscription data server 52 sends the group subscription information to the switch 51.
- the switch 51 resets the buffer timer every time it receives the group subscription information and before the end of the buffer timer that has started, and acquires each of the received group subscription information after the buffer timer expires. All the group subscription information corresponding to each terminal, and then the switch 51 sends all the group subscription information corresponding to each terminal to the terminal 54 through the base station 53 to implement dynamic reorganization.
- the system of this embodiment can also be used to perform the flow of the embodiment shown in any of Figures 1 - 2C.
- the switch in the system sets the buffer timer and passes the buffer timing that has been initiated each time the group subscription information is received.
- the buffer timer is reset before the timer expires, and only the group subscription information corresponding to each terminal is sent to the terminal once after the buffer timer expires, which solves the problem that the user subscribes to the data server in a short time.
- the switch frequently sends the group subscription information to the terminal, which avoids the air interface signaling storm caused by the switch frequently sending the group subscription information to the terminal.
- the switch of the embodiment sends all the group subscription information corresponding to all the terminals to each terminal in a timely manner, and the balance of the traffic and the balance of the switch itself are implemented, thereby further preventing the occurrence of the air interface signaling storm.
Abstract
本发明提供一种集群系统中动态重组的方法、系统及交换机。其中方法包括：交换机在接收到群组签约信息时将已启动且定时未结束的緩冲定时器重置，所述群组签约信息包括群组标识和属于群组的终端标识；当緩冲定时器定时结束后，交换机根据终端标识，获取与每个终端标识对应的所有群组签约信息；交换机将获取的与每个终端标识对应的所有群组签约信息，分别发送给与每个终端标识对应的终端，以实现动态重组。交换机包括：接收模块、获取模块和发送模块。釆用本发明技术方案，可以解决现有技术在实现动态重组时存在的交换机频繁地向终端发送信息导致空口信令风暴的问题。
Description
集群系统中动态重组的方法、 系统及交换机
技术领域 本发明涉及移动通信技术， 尤其涉及一种集群系统中动态重组的方 法、 系统及交换机。 背景技术
集群通信系统中， 动态重组是由调度台发起， 将一些移动台组建为临时 组， 并可以通过信令添加和删除临时组内的成员或者删除整个临时组。 例如： 平时消防车、 消防人员、 警察和大楼工作人员分别属于各自的通信组内， 当 大楼发生火灾时， 调度指挥中心可以将消防车、 消防人员、 警察和大楼工作 人员划分到一个动态组内， 对所有人员进行统一调度指挥， 更加有效地朴灭 火灾。 当朴灭火灾后， 调度指挥中心可以删除动态组， 原来的工作人员又回 到了固定的组中。
在 TETRA集群系统中， 如果需要进行动态重组， 需要动态重组的移动 台的签约信息就会被存储在用户签约数据服务器中； 用户签约数据服务器将 移动台的签约信息发送给网络侧的交换机， 网络侧的交换机根据用户签约数 据服务器发送的签约信息控制各终端完成动态重组。
在实现本发明过程中， 发明人发现现有技术中至少存在如下问题： 如果 用户签约数据服务器发送给网络侧交换机的群组签约信息在短时间内集中， 就会导致网络侧交换机在短时间内频繁的向终端发送群组签约信息， 甚至导 致网络侧交换机与终端之间的空口发生信令风暴。 发明内容
本发明提供一种集群系统中动态重组的方法、 系统及交换机， 用以解 决现有技术在实现动态重组时存在的交换机频繁地向终端发送信息导致 空口信令风暴的问题。
本发明提供一种集群系统中动态重组的方法， 包括：
交换机接收用户签约数据服务器发送的群组签约信息， 在已启动的緩冲
定时器定时未结束的情况下， 将所述緩冲定时器重置， 所述群组签约信息包 括群组标识和属于群组的终端标识；
当所述緩冲定时器定时结束后， 所述交换机根据接收到的群组签约信 息中的终端标识， 获取与每个所述终端标识对应的所有群组签约信息； 所述交换机将获取的与每个所述终端标识对应的所有群组签约信息， 分 别发送给与每个所述终端标识对应的终端， 以实现动态重组。
本发明提供一种交换机， 包括：
接收模块， 用于接收用户签约数据服务器发送的群组签约信息， 在已 启动的緩冲定时器定时未结束的情况下， 将所述緩冲定时器重置， 所述群 组签约信息包括群组标识和属于群组的终端标识；
获取模块， 用于在所述緩冲定时器定时结束后， 根据接收到的群组签 约信息中的终端标识， 获取与每个所述终端标识对应的所有群组签约信 息；
发送模块，用于将获取的与每个所述终端标识对应的所有群组签约信息， 分别发送给与每个所述终端标识对应的终端， 以实现动态重组。
本发明提供一种集群系统中动态重组的系统， 包括本发明提供的任一交 换机和用户签约数据服务器。
本发明的集群系统中动态重组的方法、 系统及交换机， 交换机在接收 到用户签约数据服务器发送的群组签约信息且在已启动的緩冲定时器定 时未结束的情况下， 将緩冲定时器重置， 只有当緩冲定时器定时结束后， 才根据群组签约信息中的终端标识， 从所接收到的群组签约信息中获取每 个终端对应的所有群组签约信息， 然后分别发送给每个终端以实现动态重 组， 通过每接收到群组签约信息就重置緩冲定时器， 且只有在緩冲定时器 定时结束后才执行发送操作的方式， 解决了用户签约数据服务器在短时间 内集中向交换机发送群组签约信息时， 交换机频繁地向终端发送群组签约 信息的问题， 避免了因交换机频繁地向终端发送群组签约信息而导致的空 口信令风暴。 附图说明 图 1为本发明一实施例提供的集群系统中动态重组的方法流程图；
图 2 A为本发明另一实施例提供的集群系统中动态重组的方法流程 图；
图 2B为本发明另一实施例提供的交换机主动向终端推送群组签约信 息的流程图；
图 2C为本发明另一实施例提供的终端主动请求交换机下发群组签约 信息的流程图；
图 3为本发明一实施例提供的交换机的结构示意图；
图 4为本发明另一实施例提供的交换机的结构示意图；
图 5为本发明一实施例提供的集群系统中动态重组的系统结构示意 图。 具体实施方式 图 1为本发明一实施例提供的集群系统中动态重组的方法流程图。 如 图 1所示， 本实施例的方法包括：
步骤 101、 交换机接收用户签约数据服务器发送的群组签约信息， 在 已启动的緩冲定时器定时未结束的情况下， 将緩冲定时器重置。
在具体实施过程中， 当需要动态重组时， 每个终端会预先签约， 并将 群组签约信息存储在用户签约数据服务器上。 群组签约信息主要包括： 用 户签约的群组信息、 用户的信息、 用户在群组中的权限信息等。 其中， 用 户签约的群组信息主要是指群组名称、 群组标识等； 用户的信息主要是指 用户对应的终端的号码、 用户名称、 终端标识等； 用户在群组中的权限信 息例如可以是： 紧急呼叫权限、 普通呼叫权限、 被叫权限等。
对于用户签约数据服务器来说， 当有新的群组要建立， 或者当已存在 群组信息发生变更， 例如有新的用户终端加入或退出等时， 用户签约数据 服务器就要将有变化的群组签约信息发送给核心网中的交换机。 核心网的 交换机接收用户签约数据服务器发送的群组签约信息。 其中， 新群组的建 立、 已存在群组信息的变更等操作可由管理员来执行， 用户签约数据服务 器发送群组签约信息可由管理员触发， 但并不限于此。 另外， 管理员还可 以负责对用户签约数据服务器进行维护等。
当群组的新建立或变更在短时间内发生比较频繁时， 用户签约数据服
务器在短时间内就会频繁地向核心网的交换机发送群组签约信息， 这就会 造成用户签约数据服务器发送给交换机的群组签约信息在短时间内集中。 在现有技术中， 核心网的交换机一旦接收到群组签约信息， 就会立即将接 收到的群组签约信息发送给群组中的终端。 对于一个终端同时加入了多个 群组， 而该终端所加入的多个群组在短时间内都有变化时， 核心网的交换 机就会在短时间内向该终端频繁地发送群组签约信息， 当达到一定程度 时， 就会引发空口信令风暴。 为了解决该问题， 本实施例的交换机预先设 定一緩冲定时器， 并预先设定了緩冲定时器的定时时间， 并规定緩冲定时 器定时结束后才将接收到的群组签约信息发送给所对应的终端， 通过设置 緩冲定时器并规定緩冲定时器的使用特性实现对向终端发送群组签约信 息的緩冲。 其中， 緩冲定时器的定时时间可以根据实际应用场景适应性设 置， 且允许进行修改。
其中， 交换机在启动时或者在第一次接收到群组签约信息时， 启动緩 冲定时器。
在实际应用过程中， 交换机接收用户群组签约服务器发送的群组签约 信息， 如果在接收到群组签约信息时已启动的緩冲定时器定时结束， 将緩 冲定时器重置， 即将緩冲定时器清零， 使緩冲定时器重新开始定时。 这样 当用户签约数据服务器在短时间内集中发送群组签约信息时， 交换机就会 频繁的接收群组签约信息， 并会频繁地在緩冲定时器定时结束前将緩冲定 时器重置。
由上述可见， 当用户签约数据服务器在短时间内集中向交换机发送群 组签约信息时， 由于緩冲定时器会在定时结束前就被重置， 使得交换机在 频繁地接收群组签约信息的情况下不必立即频繁的向终端发送群组签约 信息， 实现了对群组签约信息的緩冲。
步骤 102、 当緩冲定时器定时结束后， 交换机根据接收到的群组签约 信息中的终端标识， 获取与每个终端标识对应的所有群组签约信息。
当緩冲定时器定时结束时， 说明用户签约数据服务器在緩冲定时器的 定时时间内没有再发送过群组签约信息， 表明用户签约数据服务器集中发 送群组签约信息的此次操作已经结束。 此时， 交换机可以向终端下发接收 到的群组签约信息。
在该步骤中， 交换机根据每个群组签约信息中包括的终端标识， 将这 段时间内接收到的群组签约信息以终端为依据进行分类， 获取与每个终端 对应的所有群组签约信息。 其中， 每个终端标识唯一对应于一个终端， 故 与每个终端标识对应的群组签约信息即为与每个终端对应的群组签约信 息。 每个终端可以同时加入多个群组。
通过上述操作， 交换机获取到需要发送给每个终端的所有群组签约信 息， 为后续步骤一次性将所有群组签约信息发送给终端打下了基础。
进一步， 当緩冲定时器定时结束后， 交换机需要重置緩冲定时器， 以 为后续继续接收和发送群组签约信息做准备。 其中， 交换机可以根据再一 次接收到的群组签约信息的触发重置緩冲定时器。 或者交换机还可以根据 实际应用情况， 设置一重启时间间隔， 在緩冲定时器定时结束之后的时间 达到重启时间间隔时， 重置緩冲定时器。
步骤 103、交换机将获取的与每个终端标识对应的所有群组签约信息， 分别发送给与每个终端标识对应的终端， 以实现动态重组。
在一个动态群组的建立过程中， 核心网的交换机需要将该动态群组的 群组签约信息分别发送给该动态群组中的每个终端， 才能真正实现动态重 组。
对于同时加入多个群组的终端来说， 交换机通过与终端之间的空口一 次将该终端对应的所有群组签约信息都发送给该终端。 这种发送方式与现 有技术中每接收到一个群组签约信息就发送一个群组签约信息的方式相 比， 明显的减少了通过空口向终端发送信息的次数。 解决了交换机在短时 间内集中接收群组签约信息集时频繁向终端发送群组签约信息的问题， 进 而解决了因此引起的空口信令风暴问题。
在本实施例中， 核心网中的交换机在接收到群组签约信息时， 将緩冲 定时器重置， 只有当緩冲定时器定时结束后， 才根据群组签约信息中的终 端标识， 从所接收到的群组签约信息中获取每个终端对应的所有群组签约 信息， 然后分别将每个终端对应的所有群组签约信息一次发送给每个终 端， 以实现动态重组。 在本实施例中， 交换机通过设置緩冲定时器， 在每 接收到群组签约信息时就重置緩冲定时器， 且只有在緩冲定时器定时结束 后才向终端下发群组签约信息的方式， 使得用户签约数据服务器在短时间
内集中向交换机发送群组签约信息时， 交换机集中接收到的群组签约信息 得到了緩冲， 解决了交换机频繁地向终端发送群组签约信息的问题， 从而 避免了因交换机在短时间内频繁地向终端发送群组签约信息而导致的空 口信令风暴。
进一步说明， 在本实施例中， 当緩冲定时器定时结束后， 交换机向终 端下发群组签约信息的过程， 与交换机继续接收群组签约信息的过程相互 独立， 并不相互影响。
进一步， 为了防止用户签约数据服务器在长时间内不停的向交换机发 送群组签约信息， 导致交换机在长时间内无法将接收到的群组签约信息发 送给终端， 本实施例的交换机还设置了一计数器， 用于统计緩冲定时器从 启动到定时结束之间被重置的次数， 同时还设置了重置次数门限。 当緩冲 定时器的重置次数达到重置次数门限时， 说明已经接收到一定数量的群组 签约信息， 且已经有一段时间未能向终端发送群组签约信息， 故交换机将 緩冲定时器由当前定时状态置为定时结束状态， 以使緩冲定时器定时结 束， 以便于向终端发送接收到的群组签约信息。 同时， 交换机将緩冲定时 器的重置次数清 0, 以便于在緩冲定时器被重置或重启后， 重新计数緩冲 定时器的被重置的次数。 之后， 当交换机再接收到用户签约数据服务器发 送的群组签约信息后， 将緩冲定时器重置。
图 2 A为本发明另一实施例提供的集群系统中动态重组的方法流程 图。 如图 2A所示， 本实施例的方法包括：
步骤 201、 在有新的群组建立或已经存在的群组发生变更时， 用户签 约数据服务器向核心网的交换机发送群组签约信息。
其中， 所述发送的群组签约信息是新建立的群组的群组签约信息或发 生变更的群组签约信息。
步骤 202、 核心网的交换机接收用户签约数据服务器发送的群组签约 信息， 并在接收到群组签约信息时将緩冲定时器重置。
步骤 203、 在上述緩冲定时器定时结束后， 交换机重置緩冲定时器， 并根据接收到的群组签约信息中的终端标识， 获取与每个终端标识对应的 所有群组签约信息， 同时将与每个终端标识对应终端的下载标志置为真 ( Ture ) , 表明需要向这些终端发送群组签约信息。
在重置緩冲定时器后， 又有新的群组建立或已存在群组发生变更时， 用户签约数据服务器会继续向核心网的交换机发送新建立的群组的群组 签约信息或发生变更的群组签约信息。 而交换机会继续接收群组签约信 息。
在緩冲定时器定时结束后， 交换机获取每个终端对应的所有群组签约 信息， 并将每个终端的下载标志置为真， 以表示需要向这些终端下发群组 签约信息。 同时， 在緩冲定时器定时结束后， 交换机重置緩冲定时器。
在该过程中， 交换机向终端下发群组签约信息和接收新的群组签约信 息的过程互不影响。
步骤 204、 交换机将每个终端标识对应的所有群组签约信息， 发送给 与每个终端标识对应的终端， 以实现动态重组。
其中， 根据终端的状态， 交换机可以釆用不同的方式将群组签约信息 发送给每个终端。
具体的， 当终端处于连接 （Connection ) 状态时， 交换机可以通过非 接入层（ Non-Access Stratum; 简称为： NAS )流程将群组签约信息发送给 对应的终端。具体的，交换机将终端对应的所有群组签约信息发送给基站， 基站向终端发送下载指令； 终端接收到基站的下载指令后， 从基站下载所 对应的所有群组签约信息， 并在下载结束后向基站返回下载完成消息； 基 站接收到终端的下载完成消息后， 向交换机返回下载结束消息， 从而完成 群组签约信息的下发。
当终端处于空闲 （Idle ) 状态时， 交换机向终端发起寻呼 （PAGING ) 流程， 通知终端建立信令连接。 当交换机与终端建立起信令连接后， 交换 机通过 NAS消息将终端对应的所有群组签约信息发送给该终端。
当终端不在线 （例如终端关机） 时， 交换机可以在终端上线后通过 NAS消息将终端对应的所有群组签约信息发送给对应的终端。
另外， 交换机也可以根据终端的下载请求， 通过 NAS流程将终端对 应的所有群组签约信息发送给终端。
在上述各情况下， 交换机都是通过基站将群组签约信息发送给终端 的。
其中， 如果交换机在短时间内接收到的群组签约信息涉及到大量终端
时， 则对交换机来说， 就需要向大量终端分别发送群组签约信息， 为了避 免交换机同时向大量终端发送群组签约信息造成流量不均衡和空口信令 风暴， 以使交换机能够成功将每个终端对应的所有群组签约信息均成功的 发送给每个终端， 本实施例提供一种交换机向各终端发送其所对应的所有 群组签约信息的实施方式， 具体为： 交换机预先设定发送周期， 例如每隔 1分钟发送一次， 并预先指定好每个发送周期内可以发送的终端个数， 例 如指定在每个发送周期内只能向 20个终端发送群组签约信息。 则交换机 可以在预设发送周期内， 向指定个数个终端发送群组签约信息。
基于上述实施方式， 当终端处于连接状态时， 交换机可以每隔 1分钟 启动一次 NAS流程， 并从剩余终端中选择出指定个数个， 通过 NAS流程 将各终端所对应的所有群组签约信息分别发送给选择出的终端。 其中， 剩 余终端是指按照发送周期交换机还没有将群组签约信息发送给的终端。
当终端处于空闲状态时， 交换机根据预设发送周期向终端发送群组签 约信息的过程如图 2B所示。 该实施方式包括：
步骤 2a、 当预设发送周期到达时， 核心网的交换机向覆盖终端的基站 发送寻呼 （PAGING ) 消息。 其中， 每个发送周期内发送的 PAGING消息 的个数即为指定的终端个数， 设置为 N, 其中 N是大于或等于 1的整数。 如图 2B所示， 在当前发送周期内， 交换机向基站发送的 N个 PAGING消 息， 分别为第一 PAGING消息至第 N PAGING消息。
步骤 2b、 基站将 PAGING消息转发给对应的 N个终端。
在本实施例中， 对应的终端为 N个。
步骤 2c、 每个终端接收到 PAGING消息后， 通过基站与交换机建立 信令连接。
步骤 2d、在信令连接建立后， 交换机将每个终端对应的所有群组签约 信息发送给基站。
每个终端对应的所有群组签约信息即为每个终端的终端标识对应的 所有群组签约信息。
步骤 2e、 基站向每个终端发送群组签约信息下载指令。
步骤 2f、 每个终端根据群组签约信息下载指令， 从基站下载与自己适 应的所有群组签约信息， 并在下载结束后向基站返回下载完成消息， 以告
知基站下载结束。
步骤 2g、 基站向交换机发送下载结束消息， 以告知交换机下载结束。 交换机接收到下载结束消息时， 会将该终端的下载标志置为假
( False ) , 以标识该终端对应的群组签约信息已发送。
步骤 2h、 当下一个发送周期到达时，核心网的交换机向覆盖终端的基 站发送 PAGING消息。 如图 2B所示， 在该发送周期内， 交换机向基站发 送的 N个 PAGING消息，分别为第 N+1 PAGING消息至第 2N PAGING消 息。
同时， 交换机根据下载标志从剩余的终端中再选出 N个终端， 以通过 基站与这 N个终端建立信令连接， 并将群组签约信息发送给这 N个终端。
由于后续步骤与上述步骤 2b-步骤 2g相同， 在此不再重复赘述。
在该实施方式中， 交换机通过设置发送周期， 并在发送周期到达时， 通过基站向终端发起寻呼流程， 进一步通过设置每次寻呼过程中只向指定 个数的终端发起寻呼， 在每个发送周期内向一批终端发送各自所对应的所 有群组签约信息， 在下一个发送周期向另一批终端发送各自所对应的所有 群组签约信息， 通过设定发送周期和指定个数可以防止发生空口信令风 暴， 还保证了流量的均衡性。
上述实施方式主要为交换机主动向终端推送群组签约信息的方式。 在 实际应用过程中，主动推送方式主要应用于终端刚开机时；在终端卡机后， 交换机通常是根据群组的变更或新建时才主动向终端推送群组签约信息。 而本实施例还允许终端主动发起下载其所对应的所有群组签约信息， 而交 换机根据终端的下载请求将该终端所对应的所有群组签约信息下发给终 端。 如图 2C所示， 该实施方式主要包括：
步骤 21、终端向基站发送群组下载请求，所述下载请求包括终端标识。 步骤 22、基站接收群组下载请求， 并将接收到的群组下载请求转发给 交换机。
步骤 21和步骤 22描述的是终端主动向交换机发送群组下载请求的过 程。
步骤 23、 交换机根据群组下载请求中的终端标识， 将与该终端对应的 所有群组签约信息发送给基站。
其中， 交换机接收到下载请求后， 从中获取发送下载请求的终端的终 端标识。 然后， 交换机根据该终端标识从获取的与每个终端标识对应的所 有群组签约信息中， 获取与该终端对应的所有群组签约信息， 并将与该终 端对应的所有群组签约信息发送给基站。
步骤 24、 基站向终端发送群组签约信息下载指令。
步骤 25、 终端根据基站的群组签约信息下载指令， 从基站下载其所对 应的所有群组签约信息， 并在完成下载后向基站发送下载完成消息。
步骤 26、 基站接收下载完成消息后， 向交换机发送下载结束消息， 以 告知交换机下载结束。
上述步骤 23-步骤 26描述的是交换机将与终端对应的所有群组签约信 息发送给终端的过程。
进一步， 在上述实施过程中， 如果仅有少量终端同时发起下载所对应 的所有群组签约信息的请求， 则交换机可以同时响应这些终端的请求。 如 果有大量终端同时发起下载所对应的所有群组签约信息的请求， 为了避免 空口信令风暴， 交换机可以根据预设发送周期， 并在每个发送周期仅向指 定个数的终端发送所对应的所有群组签约信息， 即交换机在终端对应的发 送周期内， 将终端所对应的所有群组签约信息发送给终端。 对于交换机来 说， 可以预先设定一终端门限值， 当发起下载所对应的所有群组签约信息 的请求的终端数量低于终端门限值时， 认为是少量终端同时发起下载所对 应的所有群组签约信息的请求， 反之认为是大量终端同时发起下载所对应 的所有群组签约信息的请求。 其中， 终端门限值可以根据实际情况进行设 置， 本实施例不限定其具体数值。
进一步， 在本实施例上述各实施例方式中， 发送周期、 指定个数以及 緩冲定时器的定时时间允许跟踪区更新流程 （TA ) 、 基站或全网可配置， 以保证动态重组的灵活性。
在本实施例中， 交换机设定群组签约信息的緩存时间， 将群组签约信 息在一定时间内緩存起来， 防止同一群组签约信息不断重复被接收而造成 重复发送给终端问题， 在一定程度上降低了造成口空信令风暴的概率。 进 一步， 本实施例通过设置发送周期并指定每个发送周期内向指定个数个终 端发送， 实现了群组签约信息的分批分时发送， 进一步降低了空口信令风
暴发生的概率。 而緩存时间、 发送周期和指定个数的可配置保证了动态重 组过程的灵活性。
图 3为本发明一实施例提供的交换机的结构示意图。 如图 3所示， 本 实施例的交换机包括： 接收模块 31、 获取模块 32和发送模块 33。
接收模块 31 , 与緩冲定时器连接， 用于接收用户签约数据服务器发送 的群组签约信息， 在已启动的緩冲定时器定时未结束的情况下， 将緩冲定 时器重置， 所述群组签约信息包括群组标识和属于群组的终端标识。
获取模块 32 , 与接收模块 31和緩冲定时器连接， 用于在緩冲定时器 定时结束后， 根据接收模块 3 1接收到的群组签约信息中的终端标识， 获 取与每个终端标识对应的所有群组签约信息。
发送模块 33 , 与获取模块 32连接， 用于将获取模块 32获取的与每个 终端标识对应的所有群组签约信息， 分别发送给与每个终端标识对应的终 端， 以实现动态重组。
本实施例交换机的各功能模块可用于执行图 1所示集群系统中动态重 组的方法流程， 其具体工作原理不再赘述， 详见方法实施例的描述。
本实施例的交换机， 在接收到用户签约数据服务器发送的群组签约信 息时， 将緩冲定时器重置， 只有当緩冲定时器定时结束后， 才根据群组签 约信息中的终端标识， 从所接收到的群组签约信息中获取每个终端对应的 所有群组签约信息， 然后分别发送给每个终端以实现动态重组， 通过每接 收到群组签约信息就重置緩冲定时器， 且只有在緩冲定时器定时结束后才 执行发送操作的方式， 解决了用户签约数据服务器在短时间内集中向交换 机发送群组签约信息时， 交换机频繁地向终端发送群组签约信息的问题， 避免了因交换机频繁地向终端发送群组签约信息而导致的空口信令风暴。
图 4为本发明另一实施例提供的交换机的结构示意图。 本实施例基于 图 3所示实施例实现， 如图 4所示， 本实施例的交换机还包括： 重置处理 模块 34。
重置处理模块 34 , 与緩冲定时器连接， 用于在緩冲定时器的重置次数 达到预设重置次数门限时， 将緩冲定时器由当前定时状态置为定时结束状 态， 并将緩冲定时器的重置次数清 0。
本实施例的发送模块 33包括：第一发送单元 331和第二发送单元 332。
第一发送单元 331 , 与获取模块 32连接， 用于在预设发送周期内， 根 据终端标识向指定个数个终端发送寻呼消息， 以与指定个数个终端建立信 令连接。 第二发送单元 332 , 与第一发送单元 331连接， 用于在第一发送 单元 33 1与指定个数个终端连接信令连接后， 将与指定个数个终端中每个 终端对应的所有群组签约信息发送给每个终端。
上述功能单元可用于执行图 2B所示方法的流程， 其具体工作原理不 再赘述， 详见方法实施例的描述。
进一步， 本实施例的发送模块 33还可以包括： 接收单元 333和第三 发送单元 334。
其中， 接收单元 333 , 用于接收终端发送的群组下载请求， 所述群组 下载请求包括终端标识。 第三发送单元 334 , 与接收单元 333连接， 用于 在接收单元 333接收到群组下载请求后， 将与终端对应的所有群组签约信 息发送给终端。 其中， 第三发送单元 334具体用于在该终端对应的发送周 期内， 将该终端对应的所有群组签约信息发送给该终端。
上述功能单元可用于执行图 2C所示方法的流程， 其具体工作原理不 再赘述， 详见方法实施例的描述。
本实施例的交换机， 通过设置緩冲定时器， 并通过每接收到群组签约 信息在緩冲定时器定时结束前重置緩冲定时器， 且只有在緩冲定时器定时 结束后才将每个终端对应的所有群组签约信息一次发送给终端的操作方 式， 解决了用户签约数据服务器在短时间内集中向交换机发送群组签约信 息时， 交换机频繁地向终端发送群组签约信息的问题， 避免了因交换机频 繁地向终端发送群组签约信息而导致的空口信令风暴。 另外， 本实施例的 交换机通过定时、 分批将所有终端对应的所有群组签约信息发送给各个终 端， 实现了流量的均衡和交换机自身负担的均衡， 进一步防止了空口信令 风暴的发生。
图 5为本发明一实施例提供的集群系统中动态重组的系统结构示意 图。 如图 5所示， 本实施例的系统包括： 交换机 51和用户签约数据服务 器 52。
其中， 交换机 51可以釆用本发明上述实施例提供的交换机， 其工作 原理可参见图 1-图 2C所示方法的描述， 其实现结构可参见图 3或图 4所
示， 在此均不再赘述。
进一步， 本实施例的系统还包括： 基站 53和终端 54。
本实施例的集群系统中动态重组的系统的工作原理为： 用户签约数据 服务器 52向交换机 51发送群组签约信息。 交换机 51每接收群组签约信 息且在已启动的緩冲定时器定时结束前， 将緩冲定时器重置， 并在緩冲定 时器定时结束后从所接收到的群组签约信息中获取每个终端对应的所有 群组签约信息， 然后交换机 51将获取的每个终端对应的所有群组签约信 息一次性通过基站 53发送给终端 54, 实现动态重组。
本实施例的系统同样可用于执行图 1-图 2C任一所示实施例的流程， 系统中的交换机设定緩冲定时器， 并通过每接收到群组签约信息在已启动 的緩冲定时器定时结束前重置緩冲定时器， 且只有在緩冲定时器定时结束 后才将每个终端对应的所有群组签约信息一次发送给终端的操作方式， 解 决了用户签约数据服务器在短时间内集中向交换机发送群组签约信息时， 交换机频繁地向终端发送群组签约信息的问题， 避免了因交换机频繁地向 终端发送群组签约信息而导致的空口信令风暴。 另外， 本实施例的交换机 通过定时、 分批将所有终端对应的所有群组签约信息发送给各个终端， 实 现了流量的均衡和交换机自身负担的均衡， 进一步防止了空口信令风暴的 发生。
本领域普通技术人员可以理解： 实现上述方法实施例的全部或部分步 骤可以通过程序指令相关的硬件来完成， 前述的程序可以存储于一计算机 可读取存储介质中， 该程序在执行时， 执行包括上述方法实施例的步骤； 而前述的存储介质包括： ROM、 RAM, 磁碟或者光盘等各种可以存储程 序代码的介质。
最后应说明的是： 以上实施例仅用以说明本发明的技术方案， 而非对 其限制； 尽管参照前述实施例对本发明进行了详细的说明， 本领域的普通 技术人员应当理解： 其依然可以对前述各实施例所记载的技术方案进行修 改， 或者对其中部分技术特征进行等同替换； 而这些修改或者替换， 并不 使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。
Claims
1、 一种集群系统中动态重组的方法， 其特征在于， 包括：
交换机接收用户签约数据服务器发送的群组签约信息， 在已启动的緩 冲定时器定时未结束的情况下， 将所述緩冲定时器重置， 所述群组签约信 息包括群组标识和属于群组的终端标识；
当所述緩冲定时器定时结束后， 所述交换机根据接收到的群组签约信 息中的终端标识， 获取与每个所述终端标识对应的所有群组签约信息； 所述交换机将获取的与每个所述终端标识对应的所有群组签约信息， 分别发送给与每个所述终端标识对应的终端， 以实现动态重组。
2、 根据权利要求 1所述的集群系统中动态重组的方法， 其特征在于， 还包括：
当所述緩冲定时器的重置次数达到预设重置次数门限时， 将所述緩冲 定时器由当前定时状态置为定时结束状态， 并将所述重置次数清 0。
3、 根据权利要求 1或 2所述的集群系统中动态重组的方法， 其特征 在于， 所述交换机将获取的与每个所述终端标识对应的所有群组签约信 息， 分别发送给与每个所述终端标识对应的终端， 以实现动态重组包括： 所述交换机在预设发送周期内， 根据所述终端标识向指定个数个终端 发送寻呼消息， 以与所述指定个数个终端建立信令连接， 并将与所述指定 个数个终端中每个终端对应的所有群组签约信息发送给所述每个终端。
4、 根据权利要求 1或 2所述的集群系统中动态重组的方法， 其特征 在于， 所述交换机将获取的与每个所述终端标识对应的所有群组签约信 息， 分别发送给与每个所述终端标识对应的终端， 以实现动态重组包括： 所述交换机接收所述终端发送的群组下载请求， 所述群组下载请求包 括终端标识；
所述交换机根据所述群组下载请求中的终端标识， 将与所述终端对应 的所有群组签约信息发送给所述终端。
5、 根据权利要求 4所述的集群系统中动态重组的方法， 其特征在于， 所述交换机根据所述群组下载请求中的终端标识， 将与所述终端对应的所 有群组签约信息发送给所述终端包括：
所述交换机在所述终端对应的发送周期内， 将所述终端对应的所有群 组签约信息发送给所述终端。
6、 一种交换机， 其特征在于， 包括：
接收模块， 用于接收用户签约数据服务器发送的群组签约信息， 在已 启动的緩冲定时器定时未结束的情况下， 将所述緩冲定时器重置， 所述群 组签约信息包括群组标识和属于群组的终端标识； 获取模块， 用于在所述 緩冲定时器定时结束后， 根据接收到的群组签约信息中的终端标识， 获取 与每个所述终端标识对应的所有群组签约信息；
发送模块， 用于将获取的与每个所述终端标识对应的所有群组签约信 息， 分别发送给与每个所述终端标识对应的终端， 以实现动态重组。
7、 根据权利要求 6所述的交换机， 其特征在于， 还包括：
重置处理模块， 用于在所述緩冲定时器的重置次数达到预设重置次数 门限时， 将所述緩冲定时器由当前定时状态置为定时结束状态， 并将所述 重置次数清 0。
8、 根据权利要求 6或 7所述的交换机， 其特征在于， 所述发送模块 包括：
第一发送单元， 用于在预设发送周期内， 根据所述终端标识向指定个 数个终端发送寻呼消息， 以与所述指定个数个终端建立信令连接；
第二发送单元， 用于将与所述指定个数个终端中每个终端对应的所有 群组签约信息发送给所述每个终端。
9、 根据权利要求 6或 7所述的交换机， 其特征在于， 所述发送模块 包括：
接收单元， 用于接收所述终端发送的群组下载请求， 所述群组下载请 求包括终端标识；
第三发送单元， 用于根据所述群组下载请求中的终端标识， 将与所述 终端对应的所有群组签约信息发送给所述终端。
10、 根据权利要求 9所述的交换机， 其特征在于， 所述第三发送单元 具体用于在所述终端对应的发送周期内， 将所述终端对应的所有群组签约 信息发送给所述终端。
1 1、一种集群系统中动态重组的系统，其特征在于，包括权利要求 6- 10 任一项所述的交换机和用户签约数据服务器。
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| CN107548036B (zh) * | 2016-06-29 | 2019-08-23 | 北京信威通信技术股份有限公司 | 一种跨数据库重组的方法及装置 |
| CN108901067B (zh) * | 2018-06-22 | 2020-10-30 | 武汉虹信通信技术有限责任公司 | 用于宽带集群核心网与调度台间的签约数据同步实现方法 |
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| CN1599326A (zh) * | 2003-09-16 | 2005-03-23 | 华为技术有限公司 | 一种集群业务中动态更新群组信息的方法 |
| CN1708147A (zh) * | 2004-06-11 | 2005-12-14 | 华为技术有限公司 | 实现集群业务动态创建用户组的方法及系统 |
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