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Method and device for sending uplink reference signal

A technology of reference signal and transmission method, which is applied in the field of communication, can solve problems such as the reduction of reliability of uplink reference signal transmission, and achieve the effect of improving reliability

Active Publication Date: 2021-08-03
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology only uses the SC-OFDM technology to determine the transmission power of the uplink reference signal. If the existing technology is used to determine the transmission power of the uplink reference signal, the transmission reliability of the uplink reference signal may be reduced.

Method used

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  • Method and device for sending uplink reference signal
  • Method and device for sending uplink reference signal
  • Method and device for sending uplink reference signal

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Embodiment Construction

[0042] Hereinafter, some terms used in this application are explained to facilitate the understanding of those skilled in the art.

[0043] 1) Terminal equipment, also known as User Equipment (UE), mobile station (MS), mobile terminal (MT), etc., is a device that provides voice and / or or data connectivity devices, such as handheld devices with wireless connectivity, vehicle-mounted devices, etc. At present, examples of some terminal devices are: mobile phone (mobile phone), tablet computer (Pad), notebook computer, palmtop computer, mobile Internet device (Mobile Internet Device, MID), wearable device, such as smart watch, smart bracelet, Pedometer, etc., computer with wireless transceiver function, virtual reality (virtual reality, VR) terminal equipment, augmented reality (augmented reality, AR) terminal equipment, wireless terminal in industrial control (industrial control), unmanned driving (selfdriving) Wireless terminals in remote medical surgery, wireless terminals in ...

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Abstract

The present application provides a method and device for sending an uplink reference signal, wherein the method includes: an access network device sends signaling to a terminal device, and the terminal device determines the sequence type of the uplink reference signal according to the signaling. The terminal device determines the transmission power of the uplink reference signal according to the sequence type of the uplink reference signal. The terminal device sends the uplink reference signal by using the transmit power of the uplink reference signal. In order to improve the reliability of the uplink reference signal transmission.

Description

technical field [0001] The present application relates to the field of communication technology, and in particular to a method and device for sending an uplink reference signal. Background technique [0002] In the Long Term Evolution (LTE) network, uplink data transmission adopts single carrier-Orthogonal frequency division multiplexing (Single carrier-Orthogonal frequency division multiplexing, SC-OFDM) technology, and downlink data transmission adopts cyclic prefix OFDM Use (Cyclic prefix-Orthogonal frequency division multiplexing, CP-OFDM) technology. [0003] When the terminal equipment adopts the SC-OFDM technology, the transmitted uplink reference signal, such as the sounding reference signal (Sounding Reference Signal, SRS), and the signal on the uplink shared channel (Physical Uplink Shared Channel, PUSCH) occupy continuous frequency domain resources. Usually, in the LTE network, the SRS is transmitted on the last symbol of a subframe, and the subframe is not used ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04W52/14H04W72/04
CPCH04L5/0048H04W52/146H04W72/0473H04L5/00H04W72/04H04W52/325H04W52/262H04W52/24H04W52/36
Inventor 纪刘榴秦龙
Owner HUAWEI TECH CO LTD