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Sounding reference signal sending method, a base station, a terminal and communication equipment

A technology for detecting reference signals and sending methods, which is applied in wireless communication, digital transmission systems, electrical components, etc., and can solve problems such as high overhead of physical layer control signaling

Active Publication Date: 2019-05-24
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the technical solution of the present invention is to provide a sounding reference signal sending method, base station, terminal and communication equipment, which are used to solve the problem of relatively large physical layer control signaling overhead when performing semi-persistent SRS transmission resource set indication in the prior art question

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  • Sounding reference signal sending method, a base station, a terminal and communication equipment
  • Sounding reference signal sending method, a base station, a terminal and communication equipment
  • Sounding reference signal sending method, a base station, a terminal and communication equipment

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Embodiment Construction

[0059] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. 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.

[0060] The method for sending the sounding reference signal SRS described in the specific embodiment of the present invention is applied to the base station, such as figure 1 shown, including:

[0061] S110. Send physical layer dynamic downlink control information to the terminal; the physical layer dynamic downlink control information includes resource indication information of an available semi-persistent SRS resource set, and the resource indication...

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Abstract

The invention provides a sounding reference signal sending method, a base station, a terminal and communication equipment. The sending method comprises the following steps: sending physical layer dynamic downlink control information to the terminal; Wherein the physical layer dynamic downlink control information comprises resource indication information of an available semi-persistent SRS resourceset; wherein the resource indication information is used for indicating the terminal to select one of N semi-persistent SRS resource sets in M pre-configured semi-persistent SRS resource sets to sendthe semi-persistent SRS, M and N are both positive integers, and N is smaller than M. According to the method, a terminal is indicated to select a partial semi-persistent SRS resource set in a pre-configured semi-persistent SRS resource set in resource indication information; The number of bits of an indication domain used for indicating the selectable SRS resource set indication is reduced, andtherefore the problem that in the prior art, when the resource set indication for semi-continuous SRS transmission is carried out, the physical layer control signaling overhead is large is solved.

Description

technical field [0001] The present invention relates to the field of wireless technology, in particular to a method for sending a sounding reference signal, a base station, a terminal and a communication device. Background technique [0002] In the NR system, in order to meet the requirement of a one-way delay of less than 0.5ms for the service user plane of Ultra-reliable and Low Latency Communications (URLLC) scenarios, a grant-free transmission scheme is proposed , compared with the scheduling-based transmission (Grant-based transmission), it can save the delay caused by the uplink scheduling request (Scheduling Request, SR for short) authorization process, but at the same time, because it is not based on base station scheduling, the transmission reliability becomes worse, Resource utilization becomes low. Based on this problem, a solution is proposed to gradually transform the initial scheduling-free transmission into scheduling-based transmission through the issuance of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W72/12
Inventor 张轶王飞夏亮柯颋
Owner CHINA MOBILE COMM LTD RES INST