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Method and apparatus for uplink power control

A technology of power control and power, applied in the field of communication, can solve problems such as inter-cell interference of user transmit power at the edge of transmit power spectral density

Inactive Publication Date: 2016-03-30
ZTE CORP
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Problems solved by technology

[0007] The present invention is proposed to solve the problem that the increase of central user transmit power spectral density will lead to too high transmit power of edge users during power control, which will cause serious inter-cell interference. Therefore, the main purpose of the present invention is to provide an uplink Method and device for road power control, to solve the above problems

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  • Method and apparatus for uplink power control
  • Method and apparatus for uplink power control
  • Method and apparatus for uplink power control

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Embodiment Construction

[0026] Functional Overview

[0027] Considering that during power control, the increase of the transmit power spectral density of the central user will cause the transmit power of the edge users to be too high and cause serious inter-cell interference, the embodiment of the present invention provides a method and device for uplink power control, which The method includes: calculating the downlink path loss of the mobile station in the serving cell; calculating the path loss from the mobile station to the adjacent cell; calculating the path of the mobile station according to the downlink path loss of the mobile station in the serving cell and the path loss from the mobile station to the adjacent cell Compensate the transmission power; obtain the basic open-loop transmission power of the mobile station according to the path compensation transmission power of the mobile station.

[0028] In the embodiment of the present invention, by measuring the received power of the downlink p...

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Abstract

A method for uplink power control and an apparatus thereof are disclosed. The method includes: obtaining the path loss of a mobile station in the serving cell; obtaining the path losses of the mobile station to the neighboring cells; setting the path compensation transmission power of the mobile station according to the path loss of the mobile station in the serving cell and the path losses of the mobile station to the neighboring cells; setting the basic open loop transmission power of the mobile station with the path compensation transmission power of the mobile station; and implementing the uplink power control according to the basic open loop transmission power. With the technical solution of this invention, a compromise between the spectrum efficiency of the system and that of the cell edge users can be made easily and effectively.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a method and device for uplink power control. Background technique [0002] Power control in wireless mobile communication is to allow each transmitter to obtain satisfactory reception quality with appropriate transmission power in the current wireless environment, while minimizing interference. Regardless of the uplink or the downlink, proper power control can increase system capacity, improve system anti-interference performance, reduce transmit power and save manufacturing costs. [0003] For a wireless communication system using OFDM technology, interference between cells becomes a very important factor affecting system capacity. In the existing uplink power control method, the transmit power density spectrum is adjusted by compensating the path loss value (or large-scale fading value, including path loss, penetration loss, shadow fading and antenna gain). As a result, us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/10H04W52/10H04W52/14H04W52/24
CPCH04W52/10H04B17/104H04W52/146H04W52/242
Inventor 张芳
Owner ZTE CORP
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