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Establishment and control for CDMA digital packet calling

A technology of call establishment and call control, which is applied in the direction of selection device, radio/inductive link selection arrangement, etc., can solve the problems of unable to meet unlimited capacity, fast access, impossibility to meet requirements, long connection time, etc., to reduce system Congestion probability, solve cell capacity limitation, and improve the effect of system capacity

Active Publication Date: 2007-06-20
SHENZHEN ZTE TRUNKING TECH CORP
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AI Technical Summary

Problems solved by technology

[0009] Therefore, using this group call control method, the occupation of air interface resources increases linearly with N, the connection time is long, the resource occupation is large, and the capacity is limited, which cannot meet the needs of unlimited capacity and fast access.
Especially in places where group users are concentrated, such as large-scale sports games, a large number of users need to be connected at the same time, and this enhanced group call method cannot meet the requirements

Method used

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  • Establishment and control for CDMA digital packet calling
  • Establishment and control for CDMA digital packet calling
  • Establishment and control for CDMA digital packet calling

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Embodiment Construction

[0051] The present invention will be further introduced below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0052] With reference to shown in Fig. 1, it is a network structure diagram supporting the CDMA digital trunking traditional group call control method of the present invention, and its main components are first introduced as follows:

[0053] MS: Trunking terminal, also referred to as terminal in this article, is a terminal device capable of storing user information, group information, scheduling area judgment, and responding to trunking services such as traditional group calling and paging.

[0054] BSS: Base station subsystem, including a transceiver (BTS) that supports trunking calls, a base station controller (BSC) and a dispatch client (PDC) that interacts with the network side;

[0055] PDS: Dispatch server to realize call control and talk right management of group calls;

[0056] PHR: S...

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Abstract

The method comprises: when establishing a call; the initial end sends the call request to the network side; PHR authenticates the initial end and informs the result to PDS; according to the authentication result, PDS sends the paging request by using traditional group call approach to all BSCs in the cluster scheduling service area; after receiving the paging request, BSC informs all BTS under his control to establish shared forward and backward service channel, and to establish STDL to PDS; after establishing radio channel, BSC informs the PDS and cyclically broadcasts paging message of GID addressing on the paging channel; according to the information in the paging message, the terminals in the cluster are captured as forwarding service channel, and automatically access to the cluster; after PDS receives the establishment completing message sent from BSC, the call is successfully established. The invention can implement the un-limited and fast access of CDMA digital trunking system.

Description

technical field [0001] The invention relates to a digital trunking system, in particular to a method for controlling the trunking call process in the digital trunking system of the CDMA system. Background technique [0002] Mobile communication technology has been developed to the third generation, among which trunking communication has increasingly become an indispensable communication service. Trunking communication refers to a dedicated dispatching communication method, including dedicated command and dispatching communication. During use, trunking users can join calls at the same time, and calls are made in simplex or half-duplex mode. [0003] Trunking communication has experienced the development process from simple intercom system to single base station small system, and then to large-capacity multi-area system, and then experienced the leap from analog trunking to digital trunking, making trunking communication in signaling coding, using multiple access More reliabl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/28
Inventor 李立平王伟权王小平
Owner SHENZHEN ZTE TRUNKING TECH CORP
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