Synchronous sequence sending method, and synchronous detection method and apparatus

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

Active Publication Date: 2018-07-17
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 s

Method used

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  • Synchronous sequence sending method, and synchronous detection method and apparatus
  • Synchronous sequence sending method, and synchronous detection method and apparatus
  • Synchronous sequence sending method, and synchronous detection method and apparatus

Examples

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no. 1 example

[0125] Such as 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 seq...

no. 2 example

[0194] Such as 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 h...

no. 3 example

[0222] Such as 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 rearra...

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Abstract

The invention provides a synchronous sequence sending method, and a synchronous detection method and apparatus. The sending method comprises the following steps: setting a target synchronous sequencewith good autocorrelation property, wherein at least a segment of sequence intercepted on the time domain or the frequency domain of the target synchronous sequence is a sub-synchronous sequence, thesub-synchronous sequence has good autocorrelation property, and the sub-synchronous sequences have good cross-correlation property; and sending the target synchronous sequence to a terminal. In the synchronous sequence sending method provided by the embodiment of the invention, for terminals with different bandwidths or terminals with different carrier intervals, after a base station side sends the same target synchronous sequence, the terminals can intercept the corresponding sub-synchronous sequences according to own requirements to perform synchronous detection, thereby not only ensuring the synchronous detection accuracy, but also improving the application range of the target synchronous 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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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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