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A reference signal transmission method and device

A technology for a reference signal and a transmission method, which is applied in the field of reference signal transmission methods and devices, and can solve the problems of many time-frequency resources and the like

Active Publication Date: 2020-08-14
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the phase compensation reference signal occupies more time-frequency resources

Method used

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  • A reference signal transmission method and device
  • A reference signal transmission method and device
  • A reference signal transmission method and device

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Embodiment Construction

[0117] The embodiments provided by the present invention will be described in detail below in conjunction with the accompanying drawings. The network architecture and business scenarios described in the embodiments of the present invention are to more clearly illustrate the technical solutions of the embodiments of the present invention, and do not constitute limitations on the technical solutions provided by the embodiments of the present invention. The evolution of the architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present invention are also applicable to similar technical problems.

[0118] figure 1 A schematic diagram of a possible system network of the present invention is shown. Such as figure 1 As shown, at least one terminal 10 communicates with a radio access network (Radio access network, RAN for short). The RAN includes at least one base station 20 (base station, BS for short), and for clarity,...

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Abstract

The application discloses a reference signal transmission method and device. The base station sends a first reference signal and a second reference signal, where the first reference signal is sent through a first group of antenna ports, and the second reference signal is sent through a second group of antenna ports, and the first group of antenna ports includes At least two antenna ports, the second group of antenna ports includes at least two antenna ports; the time-frequency resources mapped by the second reference signal are the same; or at least two of the antennas in the second group of antenna ports The time-frequency resources mapped to the second reference signal sent on the ports are the same. Through the above solution, the second reference signals transmitted on different ports are mapped to the same time-frequency resource, which reduces the time-frequency resource occupation.

Description

technical field [0001] The present application relates to the technical field of mobile communication, and in particular to a reference signal transmission method and device. Background technique [0002] With the development of mobile communication technology, the demand for communication rate and capacity is increasing day by day. The 3rd Generation Partnership Project 3GPP (The 3rd Generation Partnership Project) takes high-frequency frequency bands into consideration in system design in the next generation evolved wireless system (New Radio, NR). In a wireless system, for example, a local oscillator in a base station or a terminal is not ideal, and the random jitter of the local oscillator causes phase noise (phase noise, PN) in an output carrier signal. As the carrier frequency increases, the phase noise power will increase, so the influence of the phase noise cannot be ignored, and the reference signal needs to be used to estimate the phase noise at the receiving end....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00
CPCH04L5/0025H04L5/0048H04L5/0007H04L5/0092H04B7/0456H04L5/005H04L27/2614H04W72/1263H04L5/00H04W72/535
Inventor 孙裕秦熠栗忠峰
Owner HUAWEI TECH CO LTD