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Uplink reference signal sending method and device

A technology of a reference signal and a transmission method, applied in the field of communication, can solve the problems of reducing the reliability of uplink reference signal transmission and the like

Active Publication Date: 2018-11-02
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Uplink reference signal sending method and device

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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 invention provides an uplink reference signal sending method and device. The method comprises the steps that an access network device sends a signal to a terminal device, and the terminal device determines a sequence type of an uplink reference signal according to the signal; the terminal device determines a transmit power of the uplink reference signal according to the sequence type of the uplink reference signal; and the terminal device sends the uplink reference signal by using the transmit power of the uplink reference signal. The uplink reference signal is expected to transmit more reliably.

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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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
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