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Method and device for adjusting power

A technology of power and transmission power, applied in the field of communication, can solve the problems of user equipment interference, only consideration, transmission quality may not be improved, etc., to achieve the effect of providing throughput

Inactive Publication Date: 2009-12-09
CHINA MOBILE COMM GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the existing power control process is aimed at a single user equipment, and only considers its individual channel conditions when performing power control on a certain user equipment
[0004] The problem brought by the existing technology is: each user equipment decides to increase the transmission power in order to improve its own transmission quality. causing more disturbance
Although the transmission power of each user equipment is increased, the interference is also increasing, so the transmission quality is not necessarily improved, and the total power of the cell is increased, which affects the total throughput of the system

Method used

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  • Method and device for adjusting power

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Embodiment Construction

[0020] In the embodiment of the present invention, the power of multiple terminals is adjusted according to the distance between adjacent terminals. For terminals with a short distance, the power is appropriately lowered to reduce interference between terminals. The transmission quality can also be guaranteed, and the system can be improved. total throughput.

[0021] see figure 1 , the main flow of the power adjustment method in this embodiment is as follows:

[0022] Step 101: the first terminal determines that there is a second terminal within its propagation range.

[0023] Step 102: The first terminal determines a first distance and a second distance from the second terminal at the first moment and the second moment respectively.

[0024] Step 103: the first terminal calculates a power adjustment amount according to the first distance and the second distance.

[0025] Step 104: The first terminal determines the transmission power that should be used according to the cu...

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Abstract

The invention discloses a method for adjusting power, which is used for reducing the interference among terminals and improving the throughput of a system. The method comprises the following steps: a first terminal confirms that a second terminal exists in the transmission range of the first terminal; the first terminal respectively confirms a first distance and a second distance with the second terminal in a first moment and a second moment; the first terminal calculates a power adjusted quantity according to the first distance and the second distance; and the first terminal confirms adopted transmission power according to current transmission power and the power adjustment quantity. The invention also discloses a device for realizing the method.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for adjusting power. Background technique [0002] With the rapid development of wireless Internet multimedia communication, the capacity and reliability of wireless communication systems need to be improved urgently. Among them, power control has always been one of the focus issues. [0003] The traditional adaptive power control (Adaptive Power Control, APC) method is: set the power control threshold for all users, the transmitting end will report the carrier-to-interference ratio, and the network side will compare the carrier-to-interference ratio with the set threshold, if it is higher than If the threshold is set, power control is used, otherwise it is not used. When using power control, if the sender is in APC mode, then reduce the transmit power level and determine the setting of Adaptive Modulation and Coding (AMC), otherwise, the sender increases the trans...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/005
Inventor 金鑫
Owner CHINA MOBILE COMM GRP CO LTD