Synchronization signal transmission and detection method, transmission end, receiving end, and storage medium

Patent metadata

Field	Value
Publication number	US-10659273-B2
Application number	US-201615773172-A
Country	US
Kind code	B2
Filing date	Oct 26, 2016
Priority date	Nov 4, 2015
Publication date	May 19, 2020
Grant date	May 19, 2020

Abstract

Embodiments of the present invention disclose a synchronization signal transmission and detection method, transmission end, and receiving end. The synchronization signal transmission method includes: transmitting on M consecutive transmission symbols, a synchronization signal or a part of the synchronization signal, wherein M is an integer not less than 2, the transmission symbols include a cyclic prefix and a useful symbol portion, and the content carried in the cyclic prefix is the content in the last part of the useful symbol. The embodiments of the present invention also provide a computer storage medium.

First claim

The invention claimed is:

1. A synchronization signal sending method, comprising:
sending a synchronization signal or a part of the synchronization signal on M consecutive transmission symbols;
wherein M is an integer no less than 2,
each of the transmission symbols comprises a Cyclic Prefix (CP) and a useful symbol part, and content carried in the CP is a last portion of content carried in the useful symbol part;
wherein there are Q sending modes for sending the synchronization signal, and Q is an integer no less than 2; and for each sending mode of the Q sending modes, at least one common transmission symbol exists in M consecutive transmission symbols corresponding to the sending mode, and content carried in a useful symbol part of the at least one common transmission symbol is as same as or opposite to or conjugate to content carried in a useful symbol part of a common transmission symbol corresponding to any other of the Q sending modes.

2. The method according to claim 1 ,
wherein a CP length of at least one of the M transmission symbols in any one of the Q sending modes is different from that in any other of the Q sending modes.

3. The method according to claim 1 , wherein
a useful symbol part of a common transmission symbol m q in a sending mode q carries x m q (n); where n is 0 or a positive integer less than N; q is 0 or a positive integer less than Q; N is a positive integer, which is a number of sampling points included in the useful symbol part of each transmission symbol, and m q is 0 or a positive integer less than M; and
a useful symbol part of a transmission symbol k q in the sending mode q is obtained by multiplying a cyclic shift of x m q (n) by 1 or −1, or by conjugating a cyclic shift of x m q (n), where k q is 0 or a positive integer less than M and not equal to m q .

4. The method according to claim 3 , wherein
the useful symbol part of the transmission symbol k q is x k q (n);
when k q <m q ,

x

k
q

⁡

(
n
)

=

A

k
q

·

x

m
q

⁡

(

mod
⁡

(

N
+
n
-

∑

i
=

k
q

+
1

m
q

⁢

⁢

L
⁡

(
i
)

,
N

)

)

,

where A k q is a preset parameter that is not 0, and L(i) is a length of a CP of an i th transmission symbol;
when k q >m q ,

x

k
q

⁡

(
n
)

=

B

k
q

·

x

m
q

⁡

(

mod
⁡

(

n
+

∑

i
=

m
q

+
1

k
q

⁢

⁢

L
⁡

(
i
)

,
N

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,

where B k q is a preset parameter that is not

Assignees

• Zte Corp

Inventors

• Han Xianghui
• Xia Shuqiang
• Zhang Wen
• Dai Bo
• Dai Qian
• Shi Jing

Classifications

• H04W56/0085 Primary

  detecting a given structure in the signal · CPC title

• H04L27/2601

  Multicarrier modulation systems · CPC title

• H04W72/0446

  Resources in time domain, e.g. slots or frames · CPC title

• H04L27/2607

  Cyclic extensions · CPC title

• H04W56/0015

  one node acting as a reference for the others · CPC title