CN100373964C - Realizing method for broadcasting service in CDMA digital cluster system - Google Patents
Realizing method for broadcasting service in CDMA digital cluster system Download PDFInfo
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- CN100373964C CN100373964C CNB2004100276431A CN200410027643A CN100373964C CN 100373964 C CN100373964 C CN 100373964C CN B2004100276431 A CNB2004100276431 A CN B2004100276431A CN 200410027643 A CN200410027643 A CN 200410027643A CN 100373964 C CN100373964 C CN 100373964C
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Abstract
The present invention discloses a method for realizing broadcast service in a code division multiple access systematic digital trunking system in the field of mobile communication. The present invention comprises that a dispatching desk initiates a broadcast service request to a trunking dispatching server; the trunking dispatching server transmits a broadcast request message to a dispatching client side; the trunking dispatching client side initiates the broadcast service request to a base station; the base station establishes broadcast service channels in sectors; the base station informs the trunking dispatching client side the completion of the establishment of the channels; the trunking dispatching client side transmits channel assignment messages to the base station; the base station informs terminals parameters of broadcast channels; the terminals capture the broadcast channels and start monitoring. The present invention can overcome the defect that the existing CDMA systematic trunking communication system can not realize the broadcast service, and can realize the function of broadcast service in the CDMA systematic digital trunking system.
Description
Technical field
The present invention relates to mobile communication system, relate in particular to the implementation method of broadcasting service in the trunked mobile communication system of CDMA (Code Division MultiplexAccess, code division multiple access) standard.
Background technology
Along with mobile communcations system in the increasingly extensive application of every field such as economic and social life, mobile communcations system technology itself is also among fast development, from at present just at widely used second generation mobile communcations system, arrive ripe perfect third generation mobile system, the demand of user for communication system satisfied in technical development day by day.More more and more effectively satisfy the demand of appreciation type business such as comprising image, audio frequency, real-time multimedia service interaction, thereby making mobile communication system in people's live and work, bring into play more and more important effect.Wherein, trunking communication has become an indispensable business tine day by day, and digital cluster system is an important branch of mobile communication system.Digital cluster system is meant one group of wireless channel of multiple users share, and dynamically use the dedicated mobile communications subsystem of these channels, it is a kind of commander, dispatching patcher, in some social economies, the relatively advanced country of industrial or agricultural, the departments such as enterprise, cause, industrial and mineral, oil field, farm, public security, police and army that commander, scheduling feature are had relatively high expectations all very press for this system.
The digital cluster system device of CDMA standard comprises base station transceiver, base station controller and mobile switching centre, colony terminal, cluster client end and trunking dispatch server and colony dispatching platform, colony terminal not only has the various functions of CDMA2000 system, and increase PTT (Push ToTalk) button, be used to support trunked call; Trunked base station controller and trunked base station transceiver are formed the trunked base station system jointly, the function of compatible CDMA20001X base station, and can provide more group service for the user; The function of cluster client end is the IAD as trunked call, and signaling and service chaining between base station and the trunking dispatch server are provided, and the speech business stream of group service is compiled and distribute (Dispatch); Trunking dispatch server is the centralized control point of group service, be used for the cluster user authentication, set up trunked call, call request between the user in the arbitration group, the group service voice packet that receiving uplink comes, and be distributed to down link, adopt grouped data to select the mode of distribution technically; The colony dispatching platform can be initiated the cluster broadcast ﹠ call.
The digital cluster system main feature of CDMA standard is to adopt half-duplex communication mode to realize continuing fast, and supports group call, the i.e. method of calling of one-to-many.In trunking communication, the user shares forward channel in same sub-district domestic demand in the requirement group, when group user calling or speech, as long as pin the PTT key, just can converse with other users in the group, this PTT business is widely used in intercom system, group system, for providing the command scheduling function as group users such as public security, fire-fighting, communications and transportation, airport aviation, construction site, big assembly, military scheduling.Along with the progress of society and the enhancing of flow of personnel, be accompanied by the fast development of mobile communication technology, the field of personal communication is more and more wider, and group service also turns to the individual to use gradually.Between for example young fashion personage or chat, the communication between the household internal member in the groupuscule etc.The digital cluster system of CDMA standard not only can attract new personal user, more can attract some professional users for operator.
In digital clustering communication system, broadcasting service is a very main function, adopts the mode of broadcasting to initiate all user's communications in user and the system.Because broadcasting service is widely used in a certain zone of needs or a large number of users obtains the occasion of message simultaneously,, then there are a lot of members may just can't obtain the information that obtain if adopt the mode of common group calling to call out this moment.Broadcasting service principal character in the trunked communication system comprises the following aspects, at first can utilize Limited resources, particularly Radio Resource is supported in and is in an emergency, and the command scheduling function under the condition that the user concentrates is characterized in that the number of users of the information that receives is bigger; In addition, broadcasting service generally has only broadcast originator to speak, and other user is mute.Broadcast service is provided for the validated user of certain coverage, exceeds coverage, then can't provide.Broadcasting service mainly is a half-duplex mode, and promptly Guang Bo promoter can speak, and every other user can only answer in the system, and does not have the right of speech.And in traditional cdma system, employing be the full duplex call mode, each user monopolizes channel, can't realize broadcasting service.So CDMA standard cluster communication system also can't be realized broadcasting service at present.
Summary of the invention
The technical problem to be solved in the present invention is the shortcoming that existing CDMA standard cluster communication system can't be realized broadcasting service, in the hope of proposing a kind of method that realizes the broadcasting service function in the digital cluster system of CDMA standard.
For achieving the above object, the present invention proposes the method that realizes cluster broadcasting service in a kind of CDMA standard digital cluster system, may further comprise the steps:
The first step: dispatching desk is to the trunking dispatch server originates broadcast request;
Second step: trunking dispatch server sends broadcast request message to dispatching client; It is broadcasting service and the long code information that comprises this broadcasting use that this message uses the broadcast ﹠ call pattern of redetermination to represent;
The 3rd step: cluster client end is to the base station originates broadcast request; And frame biasing, carrier frequency and the RC of the use of designated broadcast Traffic Channel;
The 4th step: broadcasting service channel BFCH (BroadcastFundamental Channel) is set up in the base station in each sector, uses the specific WALSH sign indicating number of broadcasting service channel;
The 5th step: base station notice cluster client end PDC channel is set up and is finished;
The 6th step: cluster client end comprises the information that makes qualified terminal can receive this broadcasting service channel to base station transmitting channel assignment message in the assignment message; The content that is comprised is the frame biasing of user's appointment, Long Code Mask, parameters such as broadcasting service channel WALSH sign indicating number, radio configuration, carrier frequency;
The 7th step: the parameter of base station notice terminal broadcasting service channel, and notice MS begins to catch broadcasting service channel;
The 8th step: the capture terminal broadcasting service channel also begins to monitor, and tells the cluster client end broadcasting service channel to catch by the base station and finishes.
The 9th step: base station notice cluster client end: broadcasting service channel is caught and is finished.
In the said method, set up in the sub-district of broadcasting service channel at a plurality of needs, finish if there is the broadcasting service channel of a sub-district to set up, then can return broadcasting service channel foundation to PDS and finish message, dispatching desk notification broadcast user can loquitur.
Above-mentioned broadcasting service channel BFCH is the channel that is exclusively used in receiving broadcasting information that all broadcasting users are shared in the sub-district, adopt identical WALSH sign indicating number, long code, frame biasing FO (Frame Offset), carrier frequency and radio configuration RC (Radio Configuration, radio configuration).Wherein, the WALSH sign indicating number of broadcasting service channel use can adopt mode fixing or that reserve to use for broadcasting service; Long code can be distributed unitedly by trunking dispatch server, and identical long code is all used at the broadcasting family; The frame biasing can be distributed by trunking dispatch server.
The present invention adopts special-purpose broadcasting service channel, is formulating the zone or is being to specify colony to send broadcast, thereby can realize the business of broadcasting in the digital cluster system of CDMA standard.
Description of drawings
Fig. 1 is the method flow diagram of embodiment of the present invention;
Fig. 2 is the information interaction schematic diagram of the inventive method.
Embodiment
Below in conjunction with the drawings and specific embodiments the method for the invention is further described:
Broadcasting service is a service feature important in a kind of group system, and it can utilize finite wireless resources fully, in case of emergency, the crowd who relatively concentrates is carried out command scheduling, and the number of users of receiving information is bigger.Broadcasting service adopts half-duplex mode to carry out work, and promptly Guang Bo promoter can speak, and every other user can only answer in the system, does not have the right of speech.
In the process that broadcasting service realizes, adopt the broadcasting service channel BFCH (Broadcast Fundamental Channel) of a special use to transmit broadcast message, need set up in the sub-district of broadcasting service at each, set up a BFCH, all broadcasting users all use this BFCH to come receiving broadcasting information in the sub-district.This broadcasting service channel is all shared all members in the sub-district, promptly adopt identical WALSH sign indicating number, long code and frame biasing FO (Frame Offset), and carrier frequency and radio configuration RC (Radio Configuration, radio configuration) that broadcasting service channel BFCH uses also are identical.Wherein, the WALSH sign indicating number of broadcasting service channel use can adopt mode fixing or that reserve to use for broadcasting service; Long code can be distributed unitedly by trunking dispatch server, and identical long code is all used at the broadcasting family; The frame biasing can be distributed by trunking dispatch server.
In order to realize broadcasting service, need to set special business option and represent, at first on the colony dispatching platform, by dispatcher's originates broadcast.This moment, trunking dispatch server PDS sent broadcast request message to cluster client end PDC.It is broadcasting service and the long code information that comprises this broadcasting use that this message uses the broadcast ﹠ call pattern of redetermination to represent; Cluster client end PDC sends broadcasting service channel (BFCH) foundation request to all the trunked base station systems or the base station system under the designated cell of its connection; And frame biasing, carrier frequency and the RC of the use of designated broadcast Traffic Channel.Broadcasting service channel (only setting up Traffic Channel at forward direction) is set up in the base station in its each sector, use the specific WALSH sign indicating number of broadcasting service channel; After broadcasting service channel was set up end, base station notice PDC channel was set up and is finished; PDC is to base station transmitting channel assignment message, wherein comprise the frame biasing of user's appointment, Long Code Mask, parameters such as broadcasting service channel WALSH sign indicating number, radio configuration, carrier frequency, the parameter of base station notice mobile station MS broadcasting service channel, and the notice mobile station MS begins to catch broadcasting service channel; The MS that meets the assignment condition can respond this assignment message, begins to catch broadcasting service channel; After travelling carriage is caught broadcasting service channel, can listen to the speech in the broadcasting; Notice PDC broadcasting service channel is caught and is finished.Set up in the sub-district of broadcasting service channel at a plurality of needs, finish if there is the broadcasting service channel of a sub-district to set up, then can return broadcasting service channel foundation to PDS and finish message, dispatching desk notification broadcast user can loquitur.
Fig. 1 is the flow chart that the embodiment of the invention realizes cluster broadcasting service.With the group system based on the CDMA standard is example.In order to realize broadcasting service, the present invention at first by dispatching desk to the trunking dispatch server originates broadcast request, after trunking dispatch server is received this request, transmit this broadcast request message to dispatching client.By cluster client end to the base station sub-system originates broadcast request, after base station sub-system is received this request, set up broadcasting service channel, after broadcasting service channel is set up successfully in each sector, base station sub-system notice cluster client end, broadcasting service channel is set up and is finished; Cluster client end is to base station sub-system transmitting channel assignment message, and comprises the information that makes qualified terminal use can receive this broadcasting service channel; Base station sub-system is notified the parameter of terminal use's broadcasting service channel, and notifies the terminal use to begin to catch broadcasting service channel; Behind the capture terminal broadcasting service channel, begin to monitor broadcasting service channel, and notify the cluster client end broadcasting service channel to catch by base station sub-system and finish, colony dispatching platform notification broadcast user can loquitur.Detailed process is as described below:
101. beginning;
102. dispatching desk is to the dispatch server originates broadcast request;
103. dispatch server sends broadcast request message to dispatching client;
104. dispatching client is to the base station originates broadcast request;
105. broadcasting service channel is set up in the base station;
106. base station notice cluster client end channel is set up and is finished;
107. dispatching client is to base station transmitting channel assignment message;
108. terminal begins to catch broadcasting service channel;
109. terminal begins to monitor broadcasting service channel;
1010. dispatching desk notification broadcast user can loquitur;
1011. finish.
Fig. 2 is the information interaction schematic diagram of the inventive method.
201. dispatch server sends broadcast request message to dispatching client;
202. dispatching client sends broadcasting service channel to the base station and sets up request message;
203. hold consultation between colony terminal and the base station, set up broadcasting service channel;
204. trunked base station sends broadcasting service channel foundation to dispatching client and finishes message;
205. dispatching client sends broadcasting service channel assignment request to the base station;
206. the base station sends broadcasting service channel assignment request to colony terminal;
207. catch broadcasting service channel;
208. broadcasting service channel is set up and is finished.
The digital cluster system of CDMA standard adopts the third generation systems technology of mobile communication, has bigger technology and business development space; The method that the present invention proposes can realize the broadcasting service function making the group system of CDMA standard can satisfy the demand of cluster user in the digital cluster system of CDMA standard.
Claims (9)
1. realize the method for broadcasting service in the code division multiple access standard digital cluster system, it is characterized in that, may further comprise the steps:
The first step: dispatching desk is to the trunking dispatch server originates broadcast request;
Second step: trunking dispatch server sends broadcast request message to dispatching client;
The 3rd step: cluster client end is to the base station originates broadcast request;
The 4th step: broadcasting service channel is set up in each sector in the base station;
The 5th step: base station notice cluster client end channel is set up and is finished;
The 6th step: cluster client end is to base station transmitting channel assignment message;
The 7th step: the parameter of base station notice terminal broadcasting service channel, and the notice terminal begins to catch broadcasting service channel;
The 8th step: the capture terminal broadcasting service channel also begins to monitor.
2. realize the method for broadcasting service in the code division multiple access standard digital cluster system according to claim 1, it is characterized in that, also comprised for the 9th step: base station notice cluster client end broadcasting service channel is caught and is finished.
3. realize the method for broadcasting service in the code division multiple access standard digital cluster system according to claim 1, it is characterized in that second step, described message comprised the broadcast request message of the long code information of this broadcasting use.
4. realize the method for broadcasting service in the code division multiple access standard digital cluster system according to claim 1, it is characterized in that described the 3rd step also comprises frame biasing, carrier frequency and the radio configuration that the designated broadcast Traffic Channel is used.
5. realize the method for broadcasting service in the code division multiple access standard digital cluster system according to claim 1, it is characterized in that, comprise the information that makes qualified terminal can receive this broadcasting service channel in the described assignment message of the 6th step.
6. realize the method for broadcasting service in the code division multiple access standard digital cluster system according to claim 1, it is characterized in that, set up in the sub-district of broadcasting service channel at a plurality of needs, if having the broadcasting service channel of a sub-district to set up finishes, then can return broadcasting service channel foundation to trunking dispatch server and finish message, dispatching desk notification broadcast user can loquitur.
7. according to the method that realizes broadcasting service in claim 1 or the 6 described code division multiple access standard digital cluster systems, it is characterized in that, described broadcasting service channel BFCH is the channel that is exclusively used in receiving broadcasting information that all broadcasting users are shared in the sub-district, adopts identical broadcasting service channel WALSH sign indicating number, long code, frame biasing, carrier frequency and radio configuration.
8. realize the method for broadcasting service in the code division multiple access standard digital cluster system according to claim 7, it is characterized in that the broadcasting service channel WALSH sign indicating number that described broadcasting service channel uses adopts mode fixing or that reserve to use for broadcasting service; Described long code is distributed unitedly by trunking dispatch server, and broadcasting user all uses identical long code; Described frame biasing is distributed by trunking dispatch server.
9. realize the method for broadcasting service according to claim 1 or 5 in the code division multiple access standard digital cluster system, it is characterized in that, described channel assignment message of the 6th step comprises the frame biasing of user's appointment, Long Code Mask, broadcasting service channel WALSH sign indicating number, radio configuration, carrier frequency parameter.
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| CNB2004100276431A CN100373964C (en) | 2004-06-12 | 2004-06-12 | Realizing method for broadcasting service in CDMA digital cluster system |
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| CN100463542C (en) * | 2005-03-03 | 2009-02-18 | 中兴通讯股份有限公司 | Method for transmitting broadcast channel assignment message in CDMA standard group communication system |
| CN101159929B (en) * | 2007-10-23 | 2010-09-08 | 中兴通讯股份有限公司 | Method of implementing cluster session in digital cluster communication system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1432934A (en) * | 2001-12-28 | 2003-07-30 | Lg电子株式会社 | Data content transmitting system and method |
| US6606305B1 (en) * | 1998-11-25 | 2003-08-12 | Lucent Technologies Inc. | Apparatus, method and system for automatic telecommunication conferencing and broadcasting |
| WO2003096578A1 (en) * | 2002-05-13 | 2003-11-20 | Samsung Electronics Co., Ltd. | Method for providing broadcast service in a cdma mobile communication system |
| CN1494331A (en) * | 2002-10-31 | 2004-05-05 | 深圳市中兴通讯股份有限公司 | Mobile communication system and method for realizing mass business |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6606305B1 (en) * | 1998-11-25 | 2003-08-12 | Lucent Technologies Inc. | Apparatus, method and system for automatic telecommunication conferencing and broadcasting |
| CN1432934A (en) * | 2001-12-28 | 2003-07-30 | Lg电子株式会社 | Data content transmitting system and method |
| WO2003096578A1 (en) * | 2002-05-13 | 2003-11-20 | Samsung Electronics Co., Ltd. | Method for providing broadcast service in a cdma mobile communication system |
| CN1494331A (en) * | 2002-10-31 | 2004-05-05 | 深圳市中兴通讯股份有限公司 | Mobile communication system and method for realizing mass business |
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