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Method, device and system for sending measurement reference signal srs

A technology for measuring reference signals and sending by terminals, applied in wireless communication, network traffic/resource management, access restriction, etc., can solve the problem of low utilization of network resources, achieve the effect of increasing scheduling flexibility and enhancing resource utilization

Active Publication Date: 2016-04-06
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In the prior art, when the base station triggers SRS through DCI, the utilization rate of network resources is relatively low

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  • Method, device and system for sending measurement reference signal srs
  • Method, device and system for sending measurement reference signal srs
  • Method, device and system for sending measurement reference signal srs

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Embodiment Construction

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] Firstly, the configuration and sending process of the periodic SRS and the aperiodic SRS are respectively introduced. If the base station needs the terminal to send periodic SRS, it can configure the terminal by sending high-layer signaling (RRC signaling). During the configuration process, the base station notifies the terminal of the par...

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Abstract

Provided in embodiments of the present invention are a method, device, and system for sending a sounding reference signal (SRS). The method for sending an SRS comprises sending to a UE a DCI containing SRS information bits, said SRS information bits containing at least 2 bits and information instructing the UE to reconfigure the periodic SRS parameters or information instructing the UE to carry out cross-carrier-triggered dynamic aperiodic SRS; and, receiving from the UE an SRS transmitted on the basis of the SRS information bits. By redefining some of the many configurations contained in the SRS information bits of the DCI, the embodiments of present invention enable the DCI to be used not only for aperiodic-SRS parameter configuration and triggering, but also for other purposes, such as for reconfiguring periodic-SRS parameters and for cross-carrier-triggered dynamic aperiodic SRS, thereby enhancing scheduling flexibility and overall resource utilization.

Description

technical field [0001] Embodiments of the present invention relate to wireless communication technologies, and in particular to a method, device and system for sending a measurement reference signal (sounding reference signal, SRS for short hereinafter). Background technique [0002] The uplink measurement reference signal is a signal sent by a terminal (User equipment; UE for short) to a base station, and the content of the signal is known to both the terminal and the base station. After the base station receives the SRS, it can measure the wireless channel and related transmission conditions between the terminal and the base station. In Long Term Evolution Advanced (LTE-A for short) technology, SRS is divided into two types, the first type is called periodic measurement reference signal (PeriodicSRS), and the other type is called dynamic aperiodic measurement reference signal (AperiodicSRS). ). Once the periodic SRS is enabled, the terminal will periodically and continuo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/14
CPCH04W24/00H04W24/02H04W28/18H04W48/08H04W72/12
Inventor 周永行大卫·马瑞泽李强夏媛
Owner HUAWEI TECH CO LTD
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