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Method for realizing wireless access of DMR (Digital Mobile Radio) digital-trunked grouped data

A technology of packet data and wireless access, which is applied in wireless communication, digital transmission system, error prevention/detection using the return channel, etc. It can solve the problem of low channel resource utilization, improve the success rate of channel access, reduce Time slot waste and performance improvement are obvious

Inactive Publication Date: 2010-12-08
NEOLINK COMM TECH HANGZHOU +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0019] The purpose of the present invention is to solve the problem of low channel resource utilization in existing data access methods, and to invent a DMR digital trunking packet data wireless access method that can improve channel utilization

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  • Method for realizing wireless access of DMR (Digital Mobile Radio) digital-trunked grouped data
  • Method for realizing wireless access of DMR (Digital Mobile Radio) digital-trunked grouped data
  • Method for realizing wireless access of DMR (Digital Mobile Radio) digital-trunked grouped data

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0036] Such as Figure 3-6 shown.

[0037] A DMR digital trunking packet data wireless access implementation method, it comprises the following steps:

[0038] First of all, in the uplink access process of the mobile station packet data, a new data access application signaling is added for channel occupancy application for transmitting packet data; this application adopts random access mode, since the application signaling only occupies one frame Even if there is a collision, it only occurs within one frame time. Compared with the data directly sent by the mobile station, it avoids the situation of "wasting" multiple frames after collision with the uplink data of other mobile stations; After success, the base station will set the channel occupancy flag in the public announcement channel and send the access control signaling, according to the number of...

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Abstract

The invention relates to a method for realizing wireless access of DMR (Digital Mobile Radio) digital-trunked grouped data, which is characterized by comprising the following steps of: firstly, newly adding a data access application signaling in the upstream access process of the grouped data of a mobile station; secondly, realizing access control by adding corresponding fields in the data heads of response data on the downstream channel control of a base station; and thirdly, adding reserved access control parameter fields of tail blocks of the data to be confirmed in the downstream data sending process of the base station, then making the base station carry out channel access control while accomplishing downstream data sending to reserve time slots required for the mobile station to send the response data, and setting a channel-occupied identification in a common announcing channel, thereby ensuring that the mobile station can occupy response data information returned by the channel in time. The invention improves the channel access success rate of the mobile station in the process of transmitting the grouped data, reduces time slot waste caused by collision when the grouped data is randomly accessed to the channel and improves the utilization rate of the channel.

Description

technical field [0001] The invention relates to a trunking wireless communication technology, in particular to a digital mobile radio (DMR) digital trunking technology, specifically a method for realizing wireless access of DMR digital trunking packet data. Background technique [0002] As we all know, with the development of professional radio communication, the traditional analog wireless services are increasingly unable to meet the needs of users, and the analog operation mode is no longer applicable in many cases. This prompts the adoption of new technologies to support various basic and enhanced business functions necessary for professional radios, and the emergence of digital trunking communication systems solves this problem very well. [0003] The digital trunking communication system utilizes today's advanced digital technology and plays a very important role in command and dispatch. It adopts digital signaling method and voice digital coding technology, which make...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/04H04W74/08H04L1/00H04L1/18
CPCH04W84/08H04W74/002H04W74/0808
Inventor 徐子平姜河郑伟超戎骏
Owner NEOLINK COMM TECH HANGZHOU
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