Transmission power adjustment method and base station based on group user terminals
A transmission power and user terminal technology, applied in the field of communication, can solve problems such as waste of resources, failure to meet downlink out-of-sync conditions, frequent resource reconfiguration, etc., to achieve the effect of reducing waste of resources, reducing power consumption, and ensuring communication quality
Active Publication Date: 2017-03-15
CHENGDU TD TECH LTD
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Problems solved by technology
[0004] However, among all group user terminals, some group user terminals may determine that the downlink out-of-synchronization condition is satisfied, while other group user terminals may determine that the downlink out-of-synchronization condition is not satisfied
In this way, it is incomplete for the base station to perform resource reconfiguration only according to the downlink radio link failure message sent by one or some group user terminals based on the poor reception quality of the common pilot in the cell, resulting in frequent resource reconfiguration and resource Serious waste
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[0020] Aiming at the problems of frequent resource reconfiguration and serious waste of resources in the prior art, embodiments of the present invention provide a method to reduce the number of resource reconfigurations by adjusting the transmission power, thereby ensuring the downlink communication quality of group user terminals. And at the same time reduce the waste of resources. The method of the embodiment of the present invention specifically includes:
[0021] First, after receiving the downlink radio link failure message sent by the first group of user terminals in the first group, increase the first transmit power currently corresponding to the first group to obtain the second transmit power, and within a specified time Keeping the second transmit power constant, and at the same time counting the number of group user terminals that send downlink radio link failure messages in the first group within a specified time, and based on the counted number and the group user t...
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The invention provides a transmitting power adjustment method based on group user terminals and a base station. The method comprises the following steps: after a downlink radio link failure message sent by a first group user terminal of a first group is received, first transmitting power which is currently corresponding to the first group is increased to obtain second transmitting power, and the second transmitting power remains unchanged within a specified time; the number of group user terminals in the first group which send downlink radio link failure messages within the specified time is counted, and power adjustment proportion is obtained according to the counted number and the total number of the group user terminal in the first group; and the second transmitting power is adjusted according to the power adjustment proportion. By the technical scheme, downlink communication quality of the group user terminals is guaranteed by appropriate adjustment of the transmitting power, and waste of resources which is caused by frequent reconfiguration of resources is minimized.
Description
technical field [0001] The present invention relates to communication technology, in particular to a method for adjusting transmission power based on group user terminals and a base station. Background technique [0002] Long Term Evolution (LTE) of Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) is referred to as TD-LTE. As a representative of broadband digital communication system, TD-LTE has high bandwidth utilization efficiency, Due to the high efficiency of service bearing, the TD-LTE-based digital trunking communication system has become a new direction for the development of digital trunking. [0003] Due to the lack of private network frequency band resources, all user terminals under each group service in the digital trunking communication system (referred to as group user terminals) share the same downlink configuration, and the downlink interference is relatively heavy. The group user terminal judges whether the receiving quality of the common ...
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IPC IPC(8): H04W4/08H04W52/26H04W52/36
Inventor 王成王亮
Owner CHENGDU TD TECH LTD