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A timing advance indication method, base station, terminal and device

A technology of time advance and time advance group, which is applied in the field of communication, and can solve problems such as the influence of time quantization unit selection and the influence of uplink orthogonality

Active Publication Date: 2020-11-10
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Embodiments of the present invention provide a timing advance indication method, a base station, a terminal, and a device, so as to solve the time difference between uplink timing offset and uplink signal alignment time versus timing advance when performing uplink timing adjustment in the prior art Quantization unit selection has an impact, which in turn affects the issue of uplink orthogonality

Method used

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  • A timing advance indication method, base station, terminal and device
  • A timing advance indication method, base station, terminal and device
  • A timing advance indication method, base station, terminal and device

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Embodiment Construction

[0142] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but 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 creative efforts fall within the protection scope of the present invention.

[0143] Such as figure 1 As shown, an embodiment of the present invention provides a timing advance indication method, which is applied to a base station, and the method includes:

[0144] Step 101, sending subcarrier spacing configuration information of a physical uplink shared channel PUSCH and / or a physical uplink control channel PUCCH to a terminal.

[0145] First, the base station needs to realize a communication connection with the terminal. Afte...

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Abstract

The present invention provides a timing advance indication method, a base station, a terminal and a device. The method includes: sending subcarrier spacing configuration information of the physical uplink shared channel PUSCH and / or the physical uplink control channel PUCCH to the terminal; receiving the The preamble fed back by the terminal according to the subcarrier spacing configuration information; according to the preamble, obtain the quantized value of the timing advance corresponding to the tracking area; send the quantized value of the timing advance to the terminal, the implementation of the present invention For example, in the case of ensuring that the signaling overhead remains unchanged, the indication of the uplink timing advance is effectively realized, and the random access mechanism of 5G NR can be adjusted according to the uplink carrier interval. The quantization interval of the timing advance is realized, and the uplink is orthogonal sex.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a timing advance indicating method, base station, terminal and device. Background technique [0002] In LTE (Long Term Evolution, Long Term Evolution), all downlink and uplink control channels, data channels and reference signals use the same 15 kHz subcarrier spacing. In addition, the preamble format of each PRACH (Physical Random Access Channel) supports only one SCS (subcarrier spacing, subcarrier spacing). For example, the subcarrier spacing supported by preamble formats 0 to 3 is 1.25kHz, and the subcarrier spacing supported by preamble format 4 is 7.5kHz. [0003] Different from LTE, different subcarrier spacings can be used in the uplink and downlink control channels, data channels and reference signals of 5G NR (New Radio). At the same time, each preamble format of NR also supports multiple subcarrier intervals. [0004] In order to avoid mutual interfer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W56/00H04W74/08H04L5/00
CPCH04L5/0008H04L5/0048H04W56/0005H04W56/0045H04W56/0055H04W74/0833H04L5/001H04L27/261H04W56/0015H04L5/0092H04L27/26025H04W74/002H04L27/2692H04L27/2613H04L5/0094
Inventor 达人赵铮任斌艾托尼皮埃尔郑方政李铁高秋彬
Owner DATANG MOBILE COMM EQUIP CO LTD
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