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Synchronization indication method and device

A technology of synchronous indication and information indication, which is applied in the field of communication and can solve the problems of long delay in obtaining SSBIndex

Pending Publication Date: 2021-03-19
CHINA MOBILE COMM LTD RES INST +1
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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 synchronization indication method and device to solve the problem of a large time delay for the terminal to obtain SSBIndex

Method used

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  • Synchronization indication method and device
  • Synchronization indication method and device
  • Synchronization indication method and device

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Embodiment Construction

[0061] The transmission of the SSB is periodic and has a certain period (Synchronization Measurement Timing Configuration (Synchronization Measurement Timing Configuration, SMTC) period (period)) and duration (SMTC duration). The SSB beam sweeping (sweeping) is completed within the SMTC duration, that is, the entire cell coverage is completed. Within SMTCduration, the symbol position occupied by each SSB index is fixed. Taking 15KHz subcarrier spacing (SCS) as an example, such as figure 1 As shown, there are two SSB candidate positions within 1 ms, and the two SSB candidate positions are fixed, and their starting positions are fixed as symbol#2 and symbol#8. For frequencies below 6GHz, the maximum number of SSBs to be sent is 8, which takes 4ms. Send SSB #0, 1, 2, 3, 4, 5, 6, 7 sequentially at the SSB candidate position within these 4ms, see figure 1 .

[0062] The following will clearly and completely describe the technical solutions in the embodiments of the present inve...

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Abstract

Provided in embodiments of the present invention are a synchronization indication method and device. The method comprises the following step of receiving first information indicating whether a terminal acquires an SSB index of a target cell according to timing information of a serving cell. In the embodiments of the present invention, the network issues the auxiliary information to indicate whether the terminal can acquire the SSB index of the target cell of the pilot frequency or the inter-system according to the timing information of the serving cell, thereby reducing the measurement delay of the target cell and improving the mobility performance.

Description

technical field [0001] The embodiments of the present invention relate to the field of communication technologies, and in particular to a synchronization indication method and device. Background technique [0002] In scenarios such as reporting the beam quality, the terminal needs to report the index (index) of the synchronization signal block (Synchronization Signal and PBCH block, SSB) corresponding to the beam quality at the same time. Therefore, the terminal needs to obtain the SSB index. [0003] The delay for the terminal to obtain the SSB index is related to the SSB sending period and the number of samples. Taking the 160ms SSB transmission cycle as an example, the delay for the terminal to obtain the SSB index is at least 480 milliseconds (ms). Considering the Discontinuous Reception (DRX) configuration, the number of frequency points to be tested and other information, the delay for obtaining the SSB index will be even greater . For frequency points above 6 GHz, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02H04W56/00
CPCH04W24/02H04W56/001
Inventor 陈晶晶
Owner CHINA MOBILE COMM LTD RES INST
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