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A synchronization sequence sending method, synchronization detection method and device

A technology of synchronous sequence and synchronous detection, which is applied in the field of communication, and can solve the problems of the limitation of the length and bandwidth of the synchronous sequence sequence, low detection accuracy, etc.

Active Publication Date: 2020-12-11
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for transmitting a synchronous sequence, a synchronous detection method and a device, which solve the problem that the sequence length and bandwidth of the synchronous sequence in the prior art are mutually restricted, resulting in low detection accuracy

Method used

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  • A synchronization sequence sending method, synchronization detection method and device
  • A synchronization sequence sending method, synchronization detection method and device
  • A synchronization sequence sending method, synchronization detection method and device

Examples

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no. 1 example

[0125] like figure 1 As shown, the first embodiment of the present invention provides a method for sending a synchronization sequence, including:

[0126] Step 11, setting a target synchronization sequence with good autocorrelation characteristics; wherein, at least one segment of the sequence intercepted in the time domain or frequency domain of the target synchronization sequence is a sub-synchronization sequence, and the sub-synchronization sequence has good autocorrelation Correlation characteristics and good cross-correlation characteristics between the sub-synchronization sequences;

[0127] Step 12, sending the target synchronization sequence to the terminal.

[0128] The first embodiment of the present invention is applied to the base station side, and the base station side sets a target synchronization sequence, and the target synchronization sequence has good sub-correlation characteristics and cross-correlation characteristics. And if a sequence or multiple sequen...

no. 2 example

[0194] like figure 2 As shown, the second embodiment of the present invention provides a synchronous detection method, including:

[0195] Step 21, receiving the target synchronization sequence sent by the base station with good autocorrelation characteristics;

[0196] Step 22, performing synchronization detection according to the target synchronization sequence.

[0197] The second embodiment of the present invention is applied to the terminal side, that is, the terminal side receives the target synchronization sequence sent by the base station, and performs synchronization detection according to its own needs and the received target synchronization sequence to realize synchronization timing.

[0198] Specifically, step 22 in the second embodiment of the present invention includes:

[0199] Step 221, intercepting a sequence in the time domain or frequency domain of the target synchronization sequence as a sub-synchronization sequence, the sub-synchronization sequence has ...

no. 3 example

[0222] like image 3 As shown, the third embodiment of the present invention provides a device for sending a synchronization sequence, including:

[0223] A sequence setting module 31, configured to set a target synchronization sequence with good autocorrelation characteristics; wherein at least one sequence intercepted in the time domain or frequency domain of the target synchronization sequence is a sub-synchronization sequence, and the sub-synchronization sequence having good autocorrelation properties and good cross-correlation properties between the sub-synchronization sequences;

[0224] A sequence sending module 32, configured to send the target synchronization sequence to the terminal.

[0225] Specifically, the sequence setting module described in the third embodiment of the present invention includes:

[0226] A reference acquisition module, configured to acquire a reference synchronization sequence with good autocorrelation characteristics;

[0227] The rearrange...

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Abstract

The present invention provides a synchronization sequence transmission method, synchronization detection method and device. The transmission method includes: setting a target synchronization sequence with good autocorrelation characteristics; wherein, intercepting in the time domain or frequency domain of the target synchronization sequence The obtained at least one sequence is a sub-synchronization sequence, the sub-synchronization sequence has good autocorrelation characteristics and the sub-synchronization sequences have good cross-correlation characteristics; the target synchronization sequence is sent to the terminal; the embodiment of the present invention For terminals with different bandwidths or different carrier intervals, after the base station sends the same target synchronization sequence, the terminal can intercept the corresponding sub-synchronization sequence according to its own needs for synchronization detection, which not only ensures the accuracy of synchronization detection, but also improves the target Scope of application of the synchronization sequence.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method for sending a synchronization sequence, a method and a device for detecting synchronization. Background technique [0002] In the 5G system, since the multi-beam system needs to be supported, the synchronization sequence has a long period. In order to reduce the delay of synchronization detection, it is necessary to improve the accuracy of a detection as much as possible; for this reason, the synchronization sequence should be as long as possible, and the From a domain perspective, the bandwidth of the synchronization sequence should be as wide as possible. In 5G communication, the user's system bandwidth will range from 180k to 80M. In the same frequency band, different users will have different working bandwidth. In order to ensure the performance of a detection and support users with different bandwidths, it is necessary for the synchronization sequenc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26
CPCH04L27/2655H04L27/2671H04L27/2672H04L27/2613H04J13/0062H04W56/0015H04L27/2675H04L27/2666H04L1/1642H04L5/0094
Inventor 赵铮任斌郑方政马文平孙韶辉潘学明
Owner DATANG MOBILE COMM EQUIP CO LTD
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