A retransmission method in a cluster system

A cluster system and cluster technology, applied in the field of retransmission, can solve the problems of retransmission processing that cannot monitor the terminal channel quality, affect the demodulation performance of cluster services, etc., and achieve the effect of improving demodulation performance

Active Publication Date: 2018-12-11
CHENGDU TD TECH LTD
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Problems solved by technology

[0003] For ordinary unicast services in the LTE system, the terminal can feed back the downlink channel quality to the base station, and the base station can perform retransmission processing according to the downlink channel quality fed back by the terminal. The combining gain brought by retransmission can improve the demodulation performance of downlink data, while The

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  • A retransmission method in a cluster system
  • A retransmission method in a cluster system
  • A retransmission method in a cluster system

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[0027] In order to make the purpose, technical means, and advantages of this application clearer, the following further describes this application in detail with reference to the accompanying drawings.

[0028] figure 1 This is a schematic diagram of the basic flow of the retransmission method in the cluster system provided in this application. Such as figure 1 As shown, the method includes:

[0029] Step 101: For a cluster user in base station one cell A, the base station receives a measurement report reported by each monitoring terminal in the cluster user.

[0030] Wherein, the monitoring terminal triggers the measurement report to report when the BLER of the GTCH channel is greater than the set threshold, and the corresponding measurement report carries the BLER value and the cluster user identification ID.

[0031] Step 102: For the cell in step 101, the base station periodically counts the received measurement reports, and performs retransmission processing after the proportion ...

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Abstract

The invention discloses a retransmission method in a cluster system, comprising: for a cluster user under a cell of a base station, the base station receives a measurement report reported by each monitoring terminal in the cluster user; wherein the monitoring terminal triggers a measurement report to be reported when the BLER of the GTCH channel is greater than a set BLER threshold value, and theBLER value and the cluster user identifier ID are carried in the corresponding measurement report; For the cell, the base station periodically counts the received measurement report and performs retransmission processing after the proportion of the monitoring terminals reporting the measurement report to all the monitoring terminals reaches a set threshold value; Wherein the monitoring terminal is a user terminal which currently accesses the cell and is not turned off. The application can improve the demodulation performance of the cluster service.

Description

technical field [0001] The present application relates to the retransmission technology in the communication system, in particular to a retransmission method in the trunking system. Background technique [0002] The LTE private network trunking system is mainly composed of three logical channels: GCCH, GTCH and GPCCH. The GCCH channel is mainly used to transmit the control plane data of the cluster users, the GTCH channel is mainly used to transmit the user plane data of the cluster users, and the GPCCH main channel mainly uses It is used to transmit the paging data of trunk users. [0003] For ordinary unicast services in the LTE system, the terminal can feed back the downlink channel quality to the base station, and the base station can perform retransmission processing according to the downlink channel quality fed back by the terminal. The combining gain brought by retransmission can improve the demodulation performance of downlink data, while The trunking service is a t...

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Application Information

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IPC IPC(8): H04W24/10H04W84/08H04L1/16
CPCH04L1/1607H04W24/10H04W84/08
Inventor 鲜柯黄伟王梦茹
Owner CHENGDU TD TECH LTD
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