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Method of terminal transmitting sounding reference signal and method therefor

A sounding reference signal, aperiodic technology, applied in pilot signal distribution, signaling distribution, wireless communication, etc., can solve the problem of not providing aperiodic SRS configuration information, etc., to improve communication performance and accurate uplink channel estimation Effect

Active Publication Date: 2016-10-26
LG ELECTRONICS INC
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, detailed aperiodic SRS configuration information and methods for controlling the uplink transmission power of aperiodic SRS transmission have not been proposed so far

Method used

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  • Method of terminal transmitting sounding reference signal and method therefor
  • Method of terminal transmitting sounding reference signal and method therefor
  • Method of terminal transmitting sounding reference signal and method therefor

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Embodiment Construction

[0051] Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It is to be understood that the detailed description, which will be disclosed with reference to the accompanying drawings, is intended to describe exemplary embodiments of the present invention, rather than to describe the only embodiments in which the present invention can be practiced. The following detailed description includes details in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced without these details. For example, the following description will be made on the assumption that the mobile communication system is a 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) system, but the present invention is also applicable to other mobile communication systems excluding content unique to the 3GPP LTE system.

[0052] In...

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Abstract

Disclosed are a method of a terminal transmitting a Sounding Reference Signal (SRS) on the basis of aperiodic SRS triggering and a method for controlling uplink transmission power to transmit an aperiodic SRS in a wireless communication system. The method of the terminal transmitting the SRS on the basis of the aperiodic SRS triggering according to the present invention comprises the steps of: receiving a plurality of aperiodic SRS configuration information from the base station; receiving an aperiodic SRS transmission triggering indicator from the base station; selecting the specific aperiodic SRS configuration information among the plurality of aperiodic SRS configuration information on the basis of at least one among a sub-frame index for receiving the aperiodic SRS transmission triggering indicator, a time relation between the aperiodic SRS transmission sub-frames, and an uplink channel state; and transmitting an aperiodic SRS for the aperiodic SRS transmission triggering indicator on the basis of the selected aperiodic SRS configuration information, the plurality of aperiodic SRS configuration information including the information about a resource for transmitting the aperiodic SRS corresponding to the aperiodic SRS transmission triggering indicator. In addition, according to the present invention, the terminal can be used for receiving a power offset value for transmitting the aperiodic SRS from the base station and determining a transmission power value for transmitting the aperiodic SRS.

Description

[0001] This application is an invention patent application with the original application number 201180027587.X (international application number: PCT / KR2011 / 004088, application date: June 3, 2011, invention name: method for controlling the uplink transmission power of sounding reference signal transmission and user equipment). technical field [0002] The present invention relates to a wireless communication system, and more specifically, to a method for a user equipment (UE) to send a sounding reference signal (SRS) based on aperiodic SRS triggering and a method for UE to control the uplink transmission power of aperiodic SRS transmission method. Background technique [0003] Although wireless communication technology has evolved to LTE based on Wideband Code Division Multiple Access (WCDMA), the needs and expectations of users and service providers are still growing. Since the development of other radio access technologies is also underway, new technological evolutions ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W52/14H04W52/32H04W52/36
CPCH04W52/36H04L5/0007H04L5/0023H04L5/0048H04L5/0053H04W52/146H04W52/325
Inventor 李承旻徐翰瞥金沂濬金学成
Owner LG ELECTRONICS INC
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