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A method for transmitting data in a cluster group call

A technology of transmission method and transmission scheme, applied in the direction of digital transmission system, transmission system, network flow/resource management, etc., can solve the problem that PDSCH trunking group call service transmission is not given, and LTE system does not consider point-to-multipoint trunking service And other issues

Inactive Publication Date: 2016-01-20
POTEVIO INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, point-to-multipoint trunking services have not been considered in the specifications of the LTE system, and how to use PDSCH to realize the transmission of trunking group call services is not given in the current LTE protocol

Method used

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  • A method for transmitting data in a cluster group call
  • A method for transmitting data in a cluster group call
  • A method for transmitting data in a cluster group call

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] In the embodiment of the present invention, when transmitting trunking group call data on the PDSCH, the eNB encapsulates the DCI format on the PDCCH through the preset dedicated DCI format for trunking group call transmission, and sends the encapsulated DCI scrambled by the identifier; the UE detects to the PDCCH, and then demodulates the PDSCH corresponding to the PDCCH. According to the characteristics of the trunking group call service, through the preset DCI format for trunking group call transmission, data can be transmitted on the PDSCH to realize the point-to-multipoint trunking service, while ensuring the normal operation of various functions of the LTE system itself.

[0024] See attached figure 1 It is a schematic f...

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Abstract

The invention discloses a data transmission method in trunking group call. The method comprises the following steps: packaging DCI (downlink control information) through a preset DCI format dedicated for trunking group call transmission on a physical downlink control channel (PDCCH) by a base station eNB (evolved bode B); sending the DCI scrambled and packaged by an identification; detecting the PDCCH by a terminal UE (user equipment); and demodulating a physical downlink shared channel (PDSCH) corresponding to the PDCCH. After data transmission method provided by the embodiment of the invention is applied, group call business data can be transmitted on the PDSCH so as to transmit the multipoint trunking business.

Description

technical field [0001] The present invention relates to the technical field of communications, and more specifically, to a method for transmitting data in a trunking group call. Background technique [0002] The trunking group call service is a point-to-multipoint service, which plays a huge role in the field of professional communication. At present, digital trunking communication systems with trunking group call services that are widely used in China include terrestrial trunking radio (TETRA), integrated digital enhanced network (iDEN), global open trunking structure (GoTa) and 800MHz based on GSM technology. Cluster (GT800), etc., these systems are based on GSM technology or CDMA technology. [0003] TD-LTE technology is a new generation of broadband mobile communication wireless access technology. Compared with the wireless access technology of the existing 2G and 3G mobile communication systems, it has the characteristics of high transmission rate, small transmission d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/10H04W28/06H04L1/00
Inventor 周欣吕征南韦玮
Owner POTEVIO INFORMATION TECH CO LTD