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A synchronization signal and broadcast channel switching method in a power wireless communication system

A power wireless communication and synchronization signal technology, applied in the field of wireless communication, can solve problems such as affecting system performance, channel state deterioration, and terminal inability to access.

Active Publication Date: 2021-05-14
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When sudden strong interference occurs on these synchronization and broadcast channels or the channel status deteriorates, it will cause the terminal to be unable to access, seriously affecting system performance

Method used

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  • A synchronization signal and broadcast channel switching method in a power wireless communication system
  • A synchronization signal and broadcast channel switching method in a power wireless communication system

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Embodiment Construction

[0027] Such as figure 1 As shown, the present invention, that is, a synchronization signal and broadcast channel switching method in a power wireless communication system, includes the following steps:

[0028] Step S1, the base station presets a plurality of channel combinations, wherein each channel combination can be used to transmit synchronization signals and / or broadcast channels;

[0029] Specifically, each channel combination contains one or more carriers;

[0030] Synchronization signals include: primary synchronization signal (Primary Synchronization Signal, PSS) and secondary synchronization signal (Secondary Synchronization Signal, SSS);

[0031] The broadcast channel includes: PBCH, which can be used to transmit a master information block (Master Information block, MIB);

[0032] In addition, channel combinations can be used to transmit SIBs in addition to synchronization signals and broadcast channels;

[0033] Step S2, the base station sends a channel combina...

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Abstract

The present invention relates to a synchronization signal and broadcast channel switching method in a power wireless communication system, which includes: a base station presets a plurality of channel combinations for transmitting synchronization signals and / or broadcast channels; the base station sends a channel combination monitoring command to a terminal; The terminal monitors the channel quality of each channel combination according to the channel combination monitoring command, and sends a channel status report to the base station; the base station comprehensively sorts all channel combinations, and selects the optimal channel combination to transmit synchronization signals and / or broadcast channels, And broadcast the comprehensive ranking information of all channel combinations to the terminal; the terminal receives the synchronization signal and / or the broadcast channel according to the comprehensive ranking information of all channel combinations sent by the base station. The present invention selects the optimal channel combination to transmit the synchronous signal and the broadcast channel, and can avoid the interference frequency points in time, thereby ensuring the successful transmission of the synchronous signal and the broadcast channel.

Description

technical field [0001] The invention relates to a wireless communication technology, in particular to a synchronization signal and broadcast channel switching method in a power wireless communication system. Background technique [0002] With the rapid development of wireless mobile communication technology, the demand for wireless communication in all walks of life is increasing. However, due to the limited available wireless spectrum resources, multiple communication systems and multiple communication systems coexist for a long time in the same frequency band. For example, many frequency points in the 223-235MHz frequency band are irregularly occupied by multiple departments, including: the power department is used to deploy power wireless communication systems to promote the construction of smart grids; the Ministry of Geology and Mineral Resources is used to remotely measure water levels instrument; the Ministry of Water Resources for hydrological telemetry; the Ministr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/00H04W72/04H04W72/08H04L5/00H04W72/54
CPCH04L5/0048H04L5/0094H04L5/006H04L5/0062H04W72/23H04W72/30H04W72/541H04W72/542
Inventor 张梦莹王海峰李慧于巧玲周志刚卜智勇陆犇郑敏
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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