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Method for acquiring reference time, and method and equipment for indicating reference time

A reference time and indication technology, applied in the field of communication, can solve problems such as unable to adjust time

Active Publication Date: 2021-06-04
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] An object of the embodiments of the present invention is to provide a method for obtaining a reference time, a method and a device for indicating a reference time, so as to solve the problem that the terminal cannot adjust the time on the terminal side according to the reference time information of neighboring cells

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  • Method for acquiring reference time, and method and equipment for indicating reference time
  • Method for acquiring reference time, and method and equipment for indicating reference time

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Embodiment Construction

[0025] In order to better understand the embodiments of the present invention, the following technical points are introduced first:

[0026] 1. The reference time provided by the network:

[0027] In a Long Term Evolution (LTE) system, the network sends a system message (for example, SIB16) to the UE, and the system message may indicate a reference time amount (for example, T reference ),include:

[0028] (1) Coordinated Universal Time (UTC);

[0029] (2) Sunshine saving time or daylight saving time (Daylight Saving Time, DST);

[0030] (3) Global Positioning System (GPS) time;

[0031] (4) Local time.

[0032] When the UE receives the time information, in order to ensure that the time on the UE side is consistent with the time on the network side, the protocol stipulates that the time position corresponding to the reference time received by the UE is: the end boundary of the system message sending window of the system message. System Frame Number (SFN) boundaries.

[00...

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Abstract

Provided in an embodiment of the present invention are a method for acquiring a reference time, a method for indicating a reference time, and a device. The method comprises that a terminal receives first information from a first cell, wherein the first information is used for assisting the terminal in acquiring reference time information provided by a second cell, and the first cell is an independently working cell; and the terminal obtains reference time information provided by a second cell according to the first information, and the second cell is a neighbor cell of the first cell. In the embodiment of the invention, the first cell working independently sends the first information to the terminal, and the first information can assist the terminal in discovering the reference time information provided by the second cell, so that the terminal can adjust the time of the terminal side according to the reference time information provided by the second cell.

Description

technical field [0001] The embodiment of the present invention relates to the field of communication technologies, and in particular to a method for acquiring a reference time, a method and a device for indicating the reference time. Background technique [0002] In the new air interface (New Radio, NR), in order to support the time-sensitive service (timesensitive service) in the industrial Internet, the terminal (user equipment (User Equipment, UE)) needs high-precision reference time information (for example, the reference time accuracy is 10 nanometers second (ns)), the high-precision reference time information is provided by the network side through broadcast or unicast (for example, through a downlink information transmission information element (DLinformationTranfer IE)). [0003] At present, when the terminal cannot obtain the reference time information of the neighboring cell of the independently working cell, the terminal cannot adjust the time on the terminal side...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W56/00
CPCH04W56/001H04W56/00H04W72/04
Inventor 张艳霞吴昱民
Owner VIVO MOBILE COMM CO LTD
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