CN101980553A - Method and system for updating information in digital trunking system - Google Patents

Method and system for updating information in digital trunking system Download PDF

Info

Publication number
CN101980553A
CN101980553A CN2010105151921A CN201010515192A CN101980553A CN 101980553 A CN101980553 A CN 101980553A CN 2010105151921 A CN2010105151921 A CN 2010105151921A CN 201010515192 A CN201010515192 A CN 201010515192A CN 101980553 A CN101980553 A CN 101980553A
Authority
CN
China
Prior art keywords
information updating
ptt
ptt information
terminal
priority
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN2010105151921A
Other languages
Chinese (zh)
Inventor
许烨
杜昱
许廷超
潘成林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
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 ZTE Corp filed Critical ZTE Corp
Priority to CN2010105151921A priority Critical patent/CN101980553A/en
Publication of CN101980553A publication Critical patent/CN101980553A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a method and a system for updating information in a digital trunking system. After a user is authenticated, a dispatching control centre sets the priority of a push-to-talk (PTT) information updating request received in an authentication process and updates the PTT information according to the priority of the PTT information updating request. The method and the system can avoid the PTT information updating delay or failure to the largest extent, so that the timeliness of the PTT information updating is guaranteed.

Description

The method and system of information updating in the digital cluster system
Technical field
The present invention relates to the digital cluster communication field, especially the method and system of information updating in the digital clustering communication system.
Background technology
Digital clustering communication system comprises: base station sub-system, mobile switching subsystem and trunking dispatching subsystem.
Terminal links to each other with digital cluster system by air interface, for terminal provides various group services.
Base station sub-system comprises base station transceiver and base station controller, links to each other with trunking dispatching subsystem, mobile switching subsystem by standard interface, satisfies the miscellaneous service demand of terminal, comprises group service, telephone service and data service.
Mobile switching subsystem belongs to the core net in the mobile communication system, and its network entity comprises mobile switching centre and attaching position register, mainly finishes the storage and the management function of related service function end message.
Trunking dispatching subsystem is made up of dispatching control center, dispatching home location register, colony terminal database, dispatch server and client, and scheduler subsystem is mainly finished colony dispatching service.
Dispatching control center is the master control point of trunked call, finishes the processing of colony dispatching calling, comprises the discriminating colony terminal, sets up various trunked calls, judges the request of cluster conversation power etc.Dispatching control center also receives the cluster speech data from reverse link, is distributed to corresponding forward link again according to the character of calling out.
Dispatching home location register is carried out the colony terminal database management operation, finishes charging, authentication and authorization function in the digital cluster system.When cluster carried out paging by unified group id, authentication and paging function were independent.
Dispatch server and client provide the management of colony terminal in the group and scheduling feature.Dispatching client is divided into dispatching desk and turnkey console.Dispatching desk is used for group in the compass of competency and terminal are carried out command scheduling; Turnkey console is used for group in the compass of competency and terminal are carried out group's terminal management.Dispatch server is the acting server of dispatching client operation dispatching and management.
The Speech Communication of digital cluster communication has outstanding feature, promptly adopts PTT (Push To Talk) button to continue in a mode that pushes to talk, called need not can answering by off-hook, and the speed that continues is fast, and function such as to support to group busy.Just because of these characteristics of digital cluster communication, it is widely used in some professional moving communicating field, for example large enterprises, traffic, taxi dispatching, harbour, public security, departments such as fire-fighting, same trunking communication also can be applied to common voice call occasion.
Digital cluster system will be called out branch for individual calling and group calling, in order to realize this clustering functionality of group calling, need to write down on the terminal end message of corresponding system side grouping information and terminal oneself, and the content of informational needs that writes down on the terminal and system side record is consistent.System side increases, deletes, revises the grouping information of terminal correspondence or revises the group member information and the end message of terminal correspondence, need upgrade accordingly end message, perhaps is referred to as the information synchronization of system side and end side.Equally, group's alter operation that terminal oneself triggers, as group leader certain terminal is deleted, added to some group member from this group and in this group, become the group member of this group or the attribute that group leader revises group member as group, after these operate successfully, system side also needs new information synchronization on the terminal of group member, and PTT information as herein described comprises grouping information, group information, group member information and end message.
Existing P TT information updating initiates that dual mode is arranged in the digital cluster system, and the one, end side is initiated PTT information updating request, and performing step specifically describes following (see figure 2):
(201) terminal is initiated the start position register request from control channel and is given dispatching control center;
(202) dispatching control center is initiated terminal location registration authentication request to dispatching home location register;
(203) dispatching home location register is returned terminal location registration authentication responses to dispatching control center;
(204) dispatching control center is registered to the terminal home position;
(205) dispatching control center and dispatching home location register are carried out PTT information updating request group summary info flow process;
(206) dispatching control center is initiated PTT information updating paging to terminal, and the terminal response paging;
(207) dispatching control center and dispatching home location register are carried out PTT information updating request group and terminal details flow process;
(208) dispatching control center is synchronized to terminal with the PTT information updating, and terminal is replied response;
(209) dispatching control center is notified PTT information updating result to dispatching home location register, and dispatching home location register is replied;
(210) the PTT information updating is finished, and dispatching control center discharges the paging to terminal, and terminal answer response, finishes release, PTT information updating success.
The 2nd, system side is initiated the PTT information updating, and performing step specifically describes following (see figure 3):
(301) system side is carried out group's change on dispatching client, has perhaps revised the information of group and group member, dispatching client notice dispatch server;
(302) dispatching control center is replied to dispatch server return, and dispatch server is replied this and replied dispatching client;
(303) dispatching control center carries out authentication to dispatching home location register to group or the group member of operating before;
(304) dispatching home location register is returned authentication responses to dispatching control center;
(305) dispatching control center and dispatching home location register are carried out PTT information updating request group summary info flow process;
(306) dispatching control center is initiated PTT information updating paging to terminal, and the terminal response paging;
(307) dispatching control center and dispatching home location register are carried out PTT information updating request group and terminal details flow process;
(308) dispatching control center is synchronized to terminal with the PTT information updating, and terminal is replied response;
(309) dispatching control center is notified PTT information updating result to dispatching home location register, and dispatching home location register is replied;
(310) the PTT information updating is finished, and dispatching control center discharges the paging to terminal, and terminal answer response, finishes release, PTT information updating success.
In the prior art, the PTT information updating needs the starting up of terminal location registers to trigger, patent CN200510092551 for example, this patent has been set forth the group information of terminal according to the end side storage, generate a random number and end side verification and, and they being sent to network side by the PTT location registers, network side determines whether described terminal is initiated group information updating again.The verification comparison method that this patent provides has been guaranteed the integrality and the correctness of end side group information, needing terminal location to register triggers, location information of terminals takies control channel in wireless side, if the terminal location registration message is lost or location registers is untimely, just can not in time trigger renewal.
Patent CN200710176180.9 for another example, this patent has mainly been set forth group information updating method and system in the digital cluster system, when terminal is carried out group's alter operation, the flip flop group group information updating, guarantee network side and end side group information synchronously.Precondition is this terminal to be carried out the operation of group change, and real-time trigger group information upgrades immediately, and in present digital cluster system, terminal being carried out the operation of group's change can both not carry out in real time, will influence trunked call like this.
Summary of the invention
The technical problem to be solved in the present invention has provided the method and system of information updating in a kind of digital cluster system, has avoided the information updating that the existing information renewal technology causes in digital cluster system time-delay or failure, has guaranteed the promptness of information updating.
For solving the problems of the technologies described above, the invention provides the method for information updating in a kind of digital cluster system, wherein, after the user passes through authentication, dispatching control center is provided with the priority of the PTT information updating request of receiving in the authentication process, and carries out the PTT information updating according to the priority of PTT information updating request.
Further, described dispatching control center priority that PTT information updating request is set comprises: the priority of PTT information updating request is set to the highest.
Further, when the priority of PTT information updating request be set to the highest after, described dispatching control center is preferential to be triggered described priority and is set to the highest PTT information updating.
Further, described PTT information updating request is initiated by end side, and at this moment, the special service number of expression PTT information updating is carried in described PTT information updating request.
Further, described PTT information updating request is initiated by end side, and at this moment, described terminal cancellation sends position register request.
The present invention also provides the system of information updating in a kind of digital cluster system, comprise dispatching control center, wherein, described dispatching control center, be used for being provided with the priority of the PTT information updating request that authentication process receives, also be used for carrying out the PTT information updating according to the priority of PTT information updating request.
Further, the described dispatching control center priority that also is used for PTT information updating request is set to the highest.
Further, described dispatching control center also is used for, when the priority of PTT information updating request be set to the highest after, preferentially trigger described priority and be set to the highest PTT information updating.
Further, described system also comprises terminal, and described terminal is used to initiate PTT information updating request, also is used for carrying in PTT information updating request the special service number of expression PTT information updating.
Further, described system also comprises terminal, is used for when initiating PTT information updating request, and cancellation sends position register request.
The method and system of information updating in the digital cluster system provided by the invention, wherein, PTT information updating request both can be initiated by end side, can be that dispatch server or dispatching client are initiated also by system side, if end side is initiated, special service number is carried in PTT information updating request when then initiating, and expression PTT information updating request is different with other information; After dispatching control center is received PTT information updating request, the priority of PTT information updating request is set, generally its priority is set to the highlyest, and PTT information updating request has higher priority than other information, has guaranteed that PTT information updating request can be by priority treatment.Compared with prior art, the present invention can avoid PTT information updating time-delay or failure to the full extent, has guaranteed the promptness of PTT information updating.
Description of drawings
Fig. 1 is the composition diagram of existing digital cluster system;
Fig. 2 is the flow chart of the PTT information updating that terminal is initiated in the prior art;
Fig. 3 is the flow chart of the PTT information updating that system initiates in the prior art;
Fig. 4 is the flow chart (comprising position register request) of the PTT information updating that terminal is initiated among the present invention;
Fig. 5 is the flow chart (not comprising position register request) of the PTT information updating that terminal is initiated among the present invention;
Fig. 6 is the flow chart of the PTT information updating that dispatch server or dispatching client are initiated among the present invention;
Fig. 7 is the composition diagram of PTT information update system among the present invention.
Embodiment
The present invention will be further described in detail below in conjunction with accompanying drawing.
Basic thought of the present invention is: after the user passed through authentication, dispatching control center was provided with the priority of the PTT information updating request of receiving in the authentication process, and carries out the PTT information updating according to the priority of PTT information updating request.
Based on above-mentioned thought, the invention provides the method for information updating in a kind of digital cluster system, wherein, after the user passes through authentication, dispatching control center is provided with the priority of the PTT information updating request of receiving in the authentication process, and carries out the PTT information updating according to the priority of PTT information updating request.It is the highest generally to be that the priority of PTT information updating request is set to, and so described dispatching control center is preferential to be triggered described priority and be set to the highest PTT information updating.If described PTT information updating request is initiated by end side, at this moment, the special service number of expression PTT information updating is carried in described PTT information updating request, and at this moment, described terminal can be cancelled the transmission position register request.
As shown in Figure 4, terminal is initiated the flow process of PTT information updating request among the present invention, has wherein comprised position registration request, specifically describes as follows:
(401) terminal is initiated the PTT information updating, sends PTT information updating request from Traffic Channel, and carries the special service number (for example " * 80 " form) and the terminal current position information of sign " PTT information updating ";
(402) dispatching control center sends PTT information authentication request to dispatching home location register;
(403) dispatching control center sends position register request to dispatching home location register, carries the current location information of terminal in the PTT information updating request;
(404) dispatching home location register is that this terminal generates PTT information update operation record, this terminal information new record more in the Cluster Database before covering, and marking terminal needs the PTT information updating.
(405) after dispatching home location register was received PTT information authentication request, analyzing special service number was " PTT information updating ", and dispatching home location register is returned PTT information authentication responses.If this terminal illegal (the expired or terminal of terminal account number is deleted etc.), then refusal; If this terminal is legal, accept this request, carry back terminal essential information (as version number and information updating mark) and give dispatching control center.
(406) dispatching home location register is replied to the registration of dispatching control center home position.
(407) result that returns according to dispatching home location register of dispatching control center replies to terminal PTT information updating request and accepts to reply, carried terminal information in replying, and PTT information updating type code is for activating.
(408) priority of dispatching control center PTT information updating request is set to the highest.Need the terminal of information updating all to distribute certain resource to each in the dispatching control center, if have in the dispatching control center this moment some terminals wait to be updated, be that the information updating resource has taken, discharge to set up this moment the earliest but also do not begin the resource that PTT information updating terminal takies, preferentially trigger priority and be set to the highest PTT information updating.
Delay when (409) then waiting for one, system side is initiated the PTT information updating flow process of follow-up Digital Clustering, system side inquires terminal from database need the PTT information updating, send paging to terminal, terminal response paging, system side discharge terminal after the terminal with the PTT information synchronization and finish information updating.
As shown in Figure 5, terminal is initiated the form that PTT information updating request does not comprise position register request among the present invention, and its flow process specifically describes as follows:
(501) terminal is initiated the PTT information updating, sends PTT information updating request from Traffic Channel, and carries the special service number (for example " * 80 " form) and the terminal current position information of sign " PTT information updating ";
(502) dispatching control center sends PTT information authentication request to dispatching home location register;
(503) dispatching home location register is that this terminal generates PTT information update operation record, this terminal information new record more in the Cluster Database before covering, and marking terminal needs the PTT information updating.
(504) after dispatching home location register was received PTT information authentication request, analyzing special service number was " PTT information updating ", and dispatching home location register is returned PTT information authentication responses.If this terminal illegal (the expired or terminal of terminal account number is deleted etc.), then refusal; If this terminal is legal, accept this request, carry back terminal essential information (as version number and information updating mark) and give dispatching control center.
(505) result that returns according to dispatching home location register of dispatching control center replies to terminal PTT information updating request and accepts to reply, carried terminal information in replying, and PTT information updating type code is for activating.
(506) priority of dispatching control center PTT information updating request is set to the highest.Need the terminal of information updating all to distribute certain resource to each in the dispatching control center, if have in the dispatching control center this moment some terminals wait to be updated, be that the information updating resource has taken, discharge to set up this moment the earliest but also do not begin the resource that PTT information updating terminal takies, preferentially trigger priority and be set to the highest PTT information updating.
Delay when (507) then waiting for one, system side is initiated the PTT information updating flow process of follow-up Digital Clustering, system side inquires terminal from database need the PTT information updating, send paging to terminal, terminal response paging, system side discharge terminal after the terminal with the PTT information synchronization and finish information updating.
As shown in Figure 6, dispatch server or dispatching client are initiated the flow process of PTT information updating request among the present invention, specifically describe as follows:
(601) keeper in the digital cluster system enters PTT information update operation interface, inquiry terminal, and the interface Query Result shows PTT information updating state and the PTT information update operation button that comprises termination number, terminal;
(602) select a terminal, carry out " PTT information updating " operation, trigger the PTT information updating of this terminal;
(603) system side sends PTT information updating request to dispatching control center, sign PTT information updating in the request, and carry this terminal information and upgrade tabulation;
(604) dispatching control center is replied to system side answer PTT information updating;
(605) after dispatching control center is accepted the dispatch server request, to dispatching home location register acquisition request end message;
(606) dispatching home location register is returned to dispatching control center and is obtained the end message authentication responses, returns terminal information (as the more specific location information of IMSI, MDN and terminal);
(607) priority of dispatching control center PTT information updating request is set to the highest, need the terminal of information updating all to distribute certain resource to each in the dispatching control center, if have in the dispatching control center this moment some terminals wait to be updated, be that the information updating resource has taken, discharge to set up this moment the earliest but also do not begin the resource that PTT information updating terminal takies, preferentially trigger priority and be set to the highest PTT information updating;
Delay when (608) then waiting for one, initiate the PTT information updating flow process of follow-up Digital Clustering, system side inquires terminal from the colony terminal database need the PTT information updating, send paging to terminal, terminal response paging, system side discharge terminal after the terminal with the PTT information synchronization and finish information updating.
The present invention also provides the system of information updating in a kind of digital cluster system, as shown in Figure 7, comprise dispatching control center, wherein, described dispatching control center, be used for being provided with the priority of the PTT information updating request that authentication process receives, also be used for carrying out the PTT information updating according to the priority of PTT information updating request.Generally speaking, the priority of described dispatching control center PTT information updating request is set to the highest, and preferentially triggers described priority and be set to the highest PTT information updating.Described system also comprises terminal, and described terminal is used to initiate PTT information updating request, also is used for carrying in PTT information updating request the special service number of expression PTT information updating, can also be used for cancellation and send position register request.
The method and system of information updating in the digital cluster system provided by the invention, wherein, PTT information updating request both can be initiated by end side, can be that dispatch server or dispatching client are initiated also by system side, if end side is initiated, special service number is carried in PTT information updating request when then initiating, and expression PTT information updating request is different with other information; After dispatching control center is received PTT information updating request, initiate PTT information authentication request to dispatching home location register, after authentication was passed through, dispatching home location register fed back to dispatching control center with end message.Next, the priority of dispatching control center replacement PTT information updating request, generally it is set to the highlyest, and PTT information updating request is by priority treatment, thereby avoids PTT information updating time-delay or failure.The present invention compared with prior art, and is simple, convenient, and farthest guaranteed the promptness of PTT information updating.
Above embodiment and embodiment only are the elaborations to technical solution of the present invention, can not be interpreted as limitation of the present invention, based on any modification of the present invention spirit and principle, be equal to and replace and innovate, all should be included within protection scope of the present invention.

Claims (10)

1. the method for information updating in the digital cluster system, it is characterized in that: after the user passes through authentication, dispatching control center is provided with the priority of the PTT information updating request of receiving in the authentication process, and carries out the PTT information updating according to the priority of PTT information updating request.
2. method according to claim 1 is characterized in that: the priority that described dispatching control center is provided with PTT information updating request comprises: the priority of PTT information updating request is set to the highest.
3. method according to claim 2 is characterized in that: when the priority of PTT information updating request be set to the highest after, described dispatching control center is preferential to be triggered described priority and is set to the highest PTT information updating.
4. method according to claim 1 is characterized in that: described PTT information updating request is initiated by end side, and at this moment, the special service number of expression PTT information updating is carried in described PTT information updating request.
5. method according to claim 1 is characterized in that: described PTT information updating request is initiated by end side, and at this moment, described terminal cancellation sends position register request.
6. the system of information updating in the digital cluster system, comprise dispatching control center, it is characterized in that: described dispatching control center, be used for being provided with the priority of the PTT information updating request that authentication process receives, also be used for carrying out the PTT information updating according to the priority of PTT information updating request.
7. system according to claim 6 is characterized in that: the priority that described dispatching control center also is used for PTT information updating request is set to the highest.
8. system according to claim 7 is characterized in that: described dispatching control center also is used for, when the priority of PTT information updating request be set to the highest after, preferentially trigger described priority and be set to the highest PTT information updating.
9. system according to claim 6 is characterized in that: described system also comprises terminal, and described terminal is used to initiate PTT information updating request, also is used for carrying in PTT information updating request the special service number of expression PTT information updating.
10. system according to claim 6 is characterized in that: described system also comprises terminal, is used for when initiating PTT information updating request, and cancellation sends position register request.
CN2010105151921A 2010-10-20 2010-10-20 Method and system for updating information in digital trunking system Pending CN101980553A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010105151921A CN101980553A (en) 2010-10-20 2010-10-20 Method and system for updating information in digital trunking system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010105151921A CN101980553A (en) 2010-10-20 2010-10-20 Method and system for updating information in digital trunking system

Publications (1)

Publication Number Publication Date
CN101980553A true CN101980553A (en) 2011-02-23

Family

ID=43601030

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010105151921A Pending CN101980553A (en) 2010-10-20 2010-10-20 Method and system for updating information in digital trunking system

Country Status (1)

Country Link
CN (1) CN101980553A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105451193A (en) * 2014-08-05 2016-03-30 成都鼎桥通信技术有限公司 Group information synchronization method and network device
CN113453211A (en) * 2021-05-11 2021-09-28 阳光凯讯(北京)科技有限公司 Roaming scene service processing system applied to narrow-band cluster communication system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1917671A (en) * 2005-08-16 2007-02-21 中兴通讯股份有限公司 Method for keeping information synchronizntion of group between terminal side and network side in group communication system
CN1992930A (en) * 2005-12-27 2007-07-04 中兴通讯股份有限公司 Method for implementing on-disturbing service in traditional group call of digital trunking communication system
CN101090531A (en) * 2007-08-01 2007-12-19 中兴通讯股份有限公司 Real-time trigger group information synchronous method for network side in trunking communication system
CN101115243A (en) * 2007-09-12 2008-01-30 中兴通讯股份有限公司 Method and device for cluster terminal to synchronize data of system
CN101137133A (en) * 2007-10-22 2008-03-05 中兴通讯股份有限公司 Method and apparatus for updating group information of cluster system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1917671A (en) * 2005-08-16 2007-02-21 中兴通讯股份有限公司 Method for keeping information synchronizntion of group between terminal side and network side in group communication system
CN1992930A (en) * 2005-12-27 2007-07-04 中兴通讯股份有限公司 Method for implementing on-disturbing service in traditional group call of digital trunking communication system
CN101090531A (en) * 2007-08-01 2007-12-19 中兴通讯股份有限公司 Real-time trigger group information synchronous method for network side in trunking communication system
CN101115243A (en) * 2007-09-12 2008-01-30 中兴通讯股份有限公司 Method and device for cluster terminal to synchronize data of system
CN101137133A (en) * 2007-10-22 2008-03-05 中兴通讯股份有限公司 Method and apparatus for updating group information of cluster system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105451193A (en) * 2014-08-05 2016-03-30 成都鼎桥通信技术有限公司 Group information synchronization method and network device
CN113453211A (en) * 2021-05-11 2021-09-28 阳光凯讯(北京)科技有限公司 Roaming scene service processing system applied to narrow-band cluster communication system

Similar Documents

Publication Publication Date Title
CN103167500B (en) A kind of realize the method and system that call-in of mobile telephone set is uniformly processed
CN101090531B (en) Real-time trigger group information synchronization method for network side in trunking communication system
CN101072390B (en) Dynamic group management method for digital trunking communication system
CN100455070C (en) Establishment and control for CDMA digital packet calling
CN100574477C (en) The method and the system thereof of right of speech control and right of speech prompting in a kind of Digital Clustering
CN101707745B (en) Method, system and device for selecting call groups
CN101521876B (en) System and method for remote-closing/ resurrection of value aggregate terminal
CN101083804B (en) Realizing method for packet member to perform temporary scheduling by digital cluster communication system
CN100536591C (en) Calling method in colony system
CN100499845C (en) Method for control traditional packet scheduling platform of CDMA digital cluster system
CN101119539B (en) Method to implement inhibition, revival function in digital cluster system
CN101141707B (en) Digital cluster system and cluster call establishment and release method
CN102857876A (en) Synchronizing method for cluster information in radio cluster communication system and corresponding devices
CN100544515C (en) The implementation method of busy prompt service in the digital clustering communication system
CN101860421B (en) Method and system for realizing uplink takeover of group calling channel
CN104104803B (en) Call business method and system and system end and calling terminal
CN101980553A (en) Method and system for updating information in digital trunking system
CN101610454A (en) Wait for implementation method, terminal and the system of cluster user group in the group system
CN1980417A (en) Method for realizing positioning in digit clustering communication system
CN100461901C (en) Method for realizing CDMA traditional packet digital calling talk process
CN100579155C (en) Busy calling forwarding method
CN101137113A (en) Method for obtaining activation calling information of digital cluster system
CN100450218C (en) Method for inquiring packet-member state in packet system
CN105163287A (en) Method for realizing provisional group call accession function in cluster communication system
CN101137114B (en) Method for obtaining activation calling information of digital cluster system

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20110223