Timing advance information acquisition and feedback method, terminal and base station

A timing advance information and acquisition method technology, applied in wireless communication, electrical components, synchronization devices, etc., can solve the problem of inability to guarantee NR system communication reliability, inability to realize multi-beam TA distinction, TA definition and TA command transmission Issues such as inability to continue

Active Publication Date: 2018-12-25
VIVO MOBILE COMM CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0006] Embodiments of the present invention provide a timing advance information acquisition and feedback method, a terminal, and a base station to solve the problem that the definition of TA and the transmission

Method used

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  • Timing advance information acquisition and feedback method, terminal and base station
  • Timing advance information acquisition and feedback method, terminal and base station
  • Timing advance information acquisition and feedback method, terminal and base station

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Embodiment Construction

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0034] Such as image 3 As shown, an embodiment of the present invention provides a method for acquiring timing advance information, which is applied to a terminal, and includes:

[0035] Step 301: Send a random access message to the base station on the target beam;

[0036] It should be noted that in this embodiment, the timing advance (TA) information is corresponding to the beam, that is, one TA information corresponds to one beam, and when the t...

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Abstract

The invention provides a method for obtaining timing advance information, a feedback method, a terminal and a base station, which relate to the technical field of communication. The method for obtaining timing advance information is applied to a terminal. The method comprises the following steps: sending a random access message to a base station on a target beam; receiving timing advance TA information corresponding to the target beam fed back by the base station according to the random access message. The scheme avoids the problem that TA information of multi-beam can not be distinguished bycorresponding TA information with beam, ensures the terminal to obtain accurate uplink synchronization, and ensures the communication reliability of NR system.

Description

Technical field [0001] The present invention relates to the field of communication technology, in particular to a method for obtaining and feedback of timing advance information, a terminal and a base station. Background technique [0002] In the Long Term Evolution (Long Term Evolution, LTE) system, each serving cell of a user equipment (User Experience, UE, also known as a terminal) is divided into a Timing Advance Group (TAG). The UE considers that the TA values ​​of serving cells of the same TAG are the same, and that the TA values ​​of serving cells of different TAGs are different. [0003] With the introduction of a transmit and receive point (TRP), a control panel (panel), and a beam (beam), a downlink cell can include multiple TRPs, a TRP can include multiple panels, and a panel can send multiple beams. At the same time, with the introduction of multiple UE panels, one uplink UE can simultaneously send multiple beams through multiple panels. [0004] This makes the TA value...

Claims

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Application Information

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IPC IPC(8): H04W56/00H04W74/08
CPCH04W56/0055H04W74/0833
Inventor 岳然吴昱民鲁智
Owner VIVO MOBILE COMM CO LTD
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