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Notification method, device and system of power difference information

A power difference and power technology, which is applied to the notification method, equipment and system fields of power difference information, and can solve problems such as poor performance.

Active Publication Date: 2020-06-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the performance of DFT-s-OFDM waveform is worse than that of OFDM waveform in frequency selective channel

Method used

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  • Notification method, device and system of power difference information
  • Notification method, device and system of power difference information
  • Notification method, device and system of power difference information

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Embodiment Construction

[0108] Embodiments of the present application are described below in conjunction with the accompanying drawings.

[0109] The terms "uplink" and "downlink" appearing in this application are used in some scenarios to describe the direction of data / information transmission, for example, the "uplink" direction is the direction in which the data / information is transmitted from the terminal device to the network side, " The "downlink" direction is the direction in which the data / information is transmitted from the network side device to the terminal device, and the "uplink" and "downlink" are only used to describe the direction, and the specific devices where the data / information transmission starts and ends are not limited.

[0110]The terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be und...

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Abstract

The invention discloses a power difference information notification method and device, and relates to the field of communication. A network device sends power difference information corresponding to different waveforms and / or modulation modes to a terminal device. The power difference is the offset of the power of the reference signal and the power of the PDSCH adopting a certain waveform or modulation mode, and the power difference is used for the terminal device to calculate the CSI.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a method, device and system for notifying power difference information. Background technique [0002] In the frequency band below 52.6GHz, NR (new radio, new air interface) adopts OFDM (orthogonal frequency division multiplexing) waveform in the downlink, and uses OFDM waveform and DFT-s-OFDM (discrete fourier transform spread orthogonal frequency) in the uplink. divisionmultiplexing, based on Fourier transform extended orthogonal frequency division multiplexing) waveforms. [0003] During downlink transmission, the network device sends CSI-RS (channel state information-reference signal, channel state information reference signal) resource configuration information and CSI (channel state information, channel state information) report configuration information to the terminal device. The terminal device measures the CSI-RS according to the CSI-RS resource c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04L5/00H04B7/06H04W72/54
CPCH04L5/0048H04B7/0626H04W72/23H04W52/325H04W52/262H04W52/143Y02D30/70H04W72/54
Inventor 刘凤威陈磊邱晶
Owner HUAWEI TECH CO LTD
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