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Method and device for transmitting reference signal in cell using unlicensed frequency band

一种非授权频段、参考信号的技术，应用在传输参考信号领域，能够解决影响UE移动性性能、发送机会点无法发送参考信号、信道繁忙等问题

Active Publication Date: 2020-01-31
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, at the sending opportunity points of the preset period, the base station may detect that the channel is busy, so that the reference signal cannot be sent at one or more sending opportunity points
In this way, it affects the UE's cell synchronization and CSI measurement, which in turn affects the mobility performance of the UE.

Method used

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  • Method and device for transmitting reference signal in cell using unlicensed frequency band
  • Method and device for transmitting reference signal in cell using unlicensed frequency band
  • Method and device for transmitting reference signal in cell using unlicensed frequency band

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Embodiment Construction

[0083] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, 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 making creative efforts shall fall within the protection scope of the present invention.

[0084] It should be understood that, in this embodiment of the present invention, a user equipment (User Equipment, UE) may be called a terminal (Terminal), a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal), etc., and the user equipment may be wirelessly The access network (Radio Access Network, RAN) communicates with one or more core networks. For example, the user equipment can be a mobile phone (or called a "cellular" phone), a c...

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Abstract

The invention discloses a method and a device for transmitting a reference signal in a cell using an unlicensed frequency band. The method comprises the following steps: determining a candidate resource set used when a first reference signal is transmitted on a cell using an unlicensed frequency band, wherein the candidate resource set comprises a preset resource and at least one flexible candidate resource; determining a first candidate resource used when the first reference signal is transmitted in the cell using the unlicensed frequency band, a channel on the unlicensed frequency band corresponding to the first candidate resource being in an idle state, and the first candidate resource being a preset resource or a flexible candidate resource in a candidate resource set; and sending thefirst reference signal on the first candidate resource. The embodiments of the present invention can improve the success rate of sending a reference signal.

Description

technical field [0001] Embodiments of the present invention relate to the communication field, and more specifically, relate to a method and device for transmitting a reference signal in a cell using an unlicensed frequency band. Background technique [0002] When performing cell selection, reselection or handover, user equipment (User Equipment, UE) needs to perform cell synchronization and identification, channel state information (Channel State Information, CSI) measurement and radio resource management (Radio Resource Management, RRM) measurement. Cell synchronization includes initial coarse synchronization and time-frequency tracking fine synchronization. Specifically, the UE can complete initial coarse synchronization according to the Primary Synchronization Signal (PSS) and the Secondary Synchronization Signal (SSS) periodically sent by the base station, and according to the cell-specific reference signal (Cell-specific Reference Signal) periodically sent by the base...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W72/04H04W74/08
CPCH04W16/10H04W74/08H04W48/16H04W88/08H04W72/542H04B17/3913H04B1/10H04L5/001H04W4/12H04W16/14H04W28/18H04W72/0453
Inventor 官磊大卫·马瑞泽柯柏安
Owner HUAWEI TECH CO LTD
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