Method for instant logging on business
A technology for business and business information, applied in the direction of radio/induction link selection and arrangement, selection of devices, etc., can solve the problems of large time interval, unfavorable synchronization of voice information, increase the cost of trunking network, etc., to improve capacity and save network bandwidth. , the effect of saving network resources
Inactive Publication Date: 2007-10-17
HUAWEI TECH CO LTD
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Problems solved by technology
Therefore, when the RAN is closely connected and does not include multiple network entities, the existing technology has two transmission time differences when transmitting voice information. When the RAN includes multiple network entities, the prior art transmits voice information at least There are three transmission time differences, and the more network entities in the RAN, the greater the transmission time difference, so the time interval for the voice information of the speaker to reach each MS is very large, whi
Method used
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[0066] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0067] When a group call is established, the present invention establishes a dedicated link for each MS between the MS and the RAN, which is the same as the prior art. The difference is that the prior art also establishes dedicated ground links for each MS within the RAN and between the RAN and the PTT Server, while the present invention uses the same RAN within the RAN and between the RAN and the PTT Server. All MSs establish a shared ground link.
[0068] Fig. 5 is a schematic diagram of a cluster network for realizing PTT service in the present invention. In the following, in conjunction with the cluster network structure shown in FIG. 5, it is explained how the present invention establishes the link between each MS and the PTT Server an...
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The method includes following step: when mobile station (MS) in cluster firstly accessing radio access network (RAN) builds a connection, a shared link is built between RAN and cluster server; when the next MS in cluster accesses network through RAN, the built shared link is configured as the transmission link between the next MS and cluster serve. The method also includes: the speaking MS in cluster transmits the service message to RAN, the RAN transmits it to cluster server through shared link; the cluster server copies the service massage and transmits the copied service message to all RAN accessed by MS in cluster through the share link according to numbers of shared links
Description
Technical field [0001] The present invention relates to cluster communication technology, in particular to a method for realizing push-to-talk service. Background technique [0002] In trunking communication, Push-to-Talk (PTT) refers to real-time direct-connected "point-to-point" and "point-to-multipoint" voice communication services. The PTT service uses a half-duplex communication mode, that is, only one person is allowed to speak at the same time, and other people can only receive the voice information of the speaker. Using the PTT service, the caller can initiate a call to a person or a group of people by pressing a button without dialing and waiting for the other party to pick up the phone. The call is connected immediately, and a talk group is quickly established, so it is very convenient for teams, work groups and Collaborative work and communication among other groups. [0003] PTT is based on the "push-to-talk" feature and has a higher demand for access delay than ordin...
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Inventor 路讴
Owner HUAWEI TECH CO LTD