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Channel sharing method for code division multiple access based cluster mobile communication system

A mobile communication system and channel sharing technology, applied in the field of channel sharing, can solve problems affecting system access capacity, channel resource waste, user capacity limitation, etc., and achieve the effects of reducing interference, increasing capacity, and reducing demand

Inactive Publication Date: 2012-06-13
SHENZHEN ZTE TRUNKING TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If there are 100 users in a group in a single cell, 100 channels in the front and reverse directions need to be occupied when implementing trunking services such as trunking calls, which leads to a serious waste of channel resources, especially the reverse channel resources. At the same time, the cell interference is increased, which limits the user capacity in a single cell and affects the access capacity of the entire system.

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  • Channel sharing method for code division multiple access based cluster mobile communication system
  • Channel sharing method for code division multiple access based cluster mobile communication system
  • Channel sharing method for code division multiple access based cluster mobile communication system

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Embodiment Construction

[0022] It is believed that the above and other objects, features and advantages of the present invention can be more clearly understood through the following detailed description of the embodiments of the present invention in conjunction with the accompanying drawings.

[0023] The core idea of ​​the channel sharing method of the present invention is: according to the call characteristics of the trunking mobile communication system, that is, at a certain moment, only one mobile terminal in a group can obtain the right to speak and send a reverse voice data packet, while the group The other mobile terminals in the group do not have the right to speak and can only receive forward voice data packets. In this way, for all mobile terminals in the group, the base station subsystem in the trunking mobile communication system only needs to allocate two channel resources for the forward and reverse directions. The cluster service can be realized. These four channel resources include th...

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Abstract

A Channel sharing method in the cluster mobile communication system based on CDMA comprises the following steps: The subsystem of the base station allocates a forward voice sharing channel for all the mobile terminals in a group; The subsystem of the base station allocates a forward signaling sharing channel for all the mobile terminals of the same cell in the group; The subsystem of the base station allocates a private reverse voice channel for the mobile terminals of speaking-use in the group; The subsystem of the base station allocates a reverse signaling sharing channel for the mobile terminals of listening-use of the same cell in the group. The present channel sharing method can take good advantages of the calling characteristic of the cluster communication system and the code division resources of the CDMA effectively. While maintaining a high voice quality of the cluster mobile communication system, the method can decreases both the demand for channel resources and the interference in the air channel, and increases the system capability as well.

Description

technical field [0001] The present invention relates to a trunking mobile communication system adopting code division multiple access (CDMA) system, and specifically relates to a channel sharing method in such a trunking mobile communication system. Background technique [0002] The code division multiple access technology adopted in the CDMA cellular mobile communication system is a multiple access method based on wideband spread spectrum technology. It is a multiple access modulation technology commonly used in mobile communication. It has high spectral efficiency and Interference and difficult to intercept and other characteristics. CDMA2000, WCDMA and TD-SCDMA proposed in the third-generation mobile communication standard all adopt code division multiple access technology, which can make the third-generation mobile communication system have larger capacity and higher data rate. [0003] The trunking communication system refers to a dedicated dispatching mobile communica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04W72/04H04W84/08
CPCH04W76/005H04W72/005H04W84/08H04W76/45H04W72/30
Inventor 刘学敏杨嘉安
Owner SHENZHEN ZTE TRUNKING TECH CORP