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Signal transmission method, base station and communication system

A technology of signal transmission and communication system, applied in the field of signal transmission method, base station and communication system, can solve the problems of waste of power resources, affect the quality of service, limited power resources of terminals, etc., and achieve the effect of improving performance and good quality of service

Active Publication Date: 2012-05-23
SHANGHAI HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the process of implementing the present invention, the inventors found that the above-mentioned solution has at least the following defects: the above-mentioned technical solution improves the service quality of the user by increasing the transmission power of the terminal, but the increase in power will affect the service quality of other users. At the same time, The power resources of the terminal are limited, so increasing the transmit power of the terminal will lead to waste of valuable power resources of the terminal

Method used

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  • Signal transmission method, base station and communication system
  • Signal transmission method, base station and communication system
  • Signal transmission method, base station and communication system

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Embodiment approach

[0078] When the base station learns that there are two users respectively located at the edge of the cell through a certain method (such as feedback from the user to the base station, etc.). One of the implementations is as follows: For example, the first terminal in the first cell estimates the SINRs from the first base station and the second base station respectively through the pilot signal or training sequence of the downlink channel, and measures the SINRs from the first cell and the corresponding The difference between the SINRs of the signals of the adjacent second cells is small, for example, the difference between the two SINRs is smaller than a set threshold limit. Then the first terminal can notify the first base station that it is at the edge of the cell through uplink signaling, and in the same way, the second terminal of the second cell uses the same method to notify the second base station that it is at the edge of the cell;

[0079] After the first base station...

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Abstract

The invention relates to the technical field of communication, and discloses a signal transmission method, a base station and a communication system. The method comprises the following steps: acquiring information that a first terminal is positioned on the edge of a cell; determining system resources and first pilot information of data signals sent by the first terminal; sending the information of the system resources and the first pilot information to the first terminal; receiving data signals sent by at least two terminals including the first terminal on the system resources, wherein pilot frequencies of the data signals sent by the at least two terminals are orthogonal, and the pilot frequency of a first data signal sent by the first terminal corresponds to the first pilot information;and according to the pilot frequencies of the data signals sent by the at least two terminals, detecting the first data signal sent by the first terminal from the received data signals. The technicalscheme can improve service quality not by improving the transmitted power of the terminals.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a signal transmission method, a base station and a communication system. Background technique [0002] With the rapid development of mobile communication technology, more and more people use mobile communication. However, due to the limitation of mobile communication, users located at the cell edge usually have poor performance due to the influence of the actual channel environment and neighboring cells. Specifically, in the uplink direction, since the terminal (MS: Mobile Station) is far away from the central area of ​​the base station (BS: Base Station), affected by factors such as shadow fading and interference from adjacent cells, compared with users in the central area, there is A poor signal-to-interference and noise ratio (SINR: Signal-to-Interference and Noise Ratio) leads to an increase in the probability that the base station receives a terminal signal incorrectl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/12H04B7/04
Inventor 刘晟赵印伟司宏杰
Owner SHANGHAI HUAWEI TECH CO LTD
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