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Method and device for signal transmission

A technology of signal transmission and communication device, applied in the field of signal transmission, can solve the problems of signal interference, inability to adjust the timing of sending SRS, etc., and achieve the effects of directional transmission, flexibility and transmission efficiency improvement.

Active Publication Date: 2022-04-05
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] When the terminal device sends SRS to the serving cell, it can adjust the timing of SRS transmission according to the timing advance (TA) with the serving cell, but when the terminal device sends SRS to the neighboring cell, it cannot know the TA with the neighboring cell, so The timing of sending SRS cannot be adjusted, which may cause the SRS sent by the terminal device to interfere with other signals of neighboring cells

Method used

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  • Method and device for signal transmission
  • Method and device for signal transmission
  • Method and device for signal transmission

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Embodiment Construction

[0072] The technical solution in this application will be described below with reference to the accompanying drawings.

[0073] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments, and are not intended to limit the application.

[0074] To facilitate the understanding of the embodiments of the present application, some terms involved in the embodiments of the present application are firstly introduced below.

[0075] 1. Beam

[0076] In the 5G system or NR system, high-frequency communication is used, that is, signals in a high-frequency band (such as a frequency band higher than 6 GHz) are used to transmit data. A major problem with high-frequency communications is that signal energy drops off dramatically w...

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Abstract

The present application provides a method and device for signal transmission. The method includes: receiving RACH configuration information of a neighboring cell from a positioning management device or a serving cell, where the RACH configuration information includes RACH resource and preamble information; The cell sends the preamble; receives the uplink TA of the neighboring cell determined by the neighboring cell according to the preamble. By enabling the terminal device to obtain the uplink TA of the neighboring cell, the terminal device can adjust the timing of sending the uplink signal to the neighboring cell according to the uplink TA of the neighboring cell, so that the SRS sent by the terminal device to the neighboring cell can be avoided to a certain extent. Other signals in the cell cause interference.

Description

technical field [0001] The present application relates to the field of communications, and in particular to a method and device for signal transmission. Background technique [0002] In some cases, a base station in a neighboring cell needs to receive an uplink signal sent by a terminal device for measurement. For example, in the uplink time difference of arrival (UTDOA) positioning method, the terminal device sends a sounding reference signal (Sounding Reference Signal, SRS), and multiple base stations including neighboring cell base stations receive the SRS sent by the terminal device, and measure For the receiving time information of the SRS, the positioning management device calculates the uplink time difference of arrival according to the receiving time information of the SRS received by multiple base stations, and combines the geographical locations of multiple base stations to realize the positioning of the terminal device. [0003] When the terminal device sends SRS...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04W74/00H04W74/08H04W72/04H04W72/08
CPCH04L5/0048H04L5/0094H04W74/006H04W74/004H04W74/0833H04W72/046H04W72/0446H04W72/541H04W72/23H04W74/002H04W74/008H04W64/00H04W56/0045H04L5/0023H04L5/0032H04L5/008H04L5/0091
Inventor 陈磊于莹洁王艺
Owner HUAWEI TECH CO LTD
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