US 12,047,886 B2Granted

Signal sending method, signal receiving method, and device

AssigneeHuawei Technologies Co., Ltd.

InventorsJuan Zheng, Chaojun Li

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Abstract

A signal sending method, a signal receiving method, and a device. The signal sending method includes: generating synchronization signals, where the synchronization signals include a first synchronization signal and a second synchronization signal; and sending the synchronization signals, where the first synchronization signal and the second synchronization signal overlap in time domain, and within a time domain resource in which the first synchronization signal and the second synchronization signal overlap, there is an intersection set between a frequency domain resource corresponding to the first synchronization signal and a frequency domain resource corresponding to the second synchronization signal. In this way, frequency domain resources occupied by the synchronization signals may be reduced, thereby saving frequency domain resources for another data transmission process. In addition, the two synchronization signals may further share a part of the frequency domain resources, thereby improving resource utilization.

Claims10

Dependent claims

A signal sending method, comprising:

generating a first synchronization signal and a second synchronization signal, wherein the first synchronization signal is generated based on a first sequence, and the second synchronization signal is generated based on a second sequence, wherein the first sequence is obtained based on the second sequence and a third sequence;
and
sending the first and second synchronization signals, wherein the first synchronization signal and the second synchronization signal overlap in time domain, and within a time domain resource in which the first synchronization signal and the second synchronization signal overlap, there is an intersection set between a frequency domain resource corresponding to the first synchronization signal and a frequency domain resource corresponding to the second synchronization signal,
wherein the first sequence has a length of KCL and is obtained based on the second sequence and the third sequence according to at least one of the following:
(1) the first sequence is obtained based on a sequence whose length is K*N, and the sequence whose length is K*N is obtained based on (1a) the second sequence whose length is N and (1b) a fifth sequence whose length is K, wherein the fifth sequence whose length is K is obtained based on the third sequence whose length is H;
(2) the first sequence is obtained based on (2a) a fourth sequence whose length is L and (2b) a fifth sequence whose length is K and which is obtained based on the third sequence whose length is H, wherein the fourth sequence whose length is L is obtained based on the second sequence whose length is N;
(3) the first sequence is obtained based on a sequence whose length is H*N, and the sequence whose length is H*N is obtained based on (3a) the second sequence whose length is N and (3b) the third sequence whose length is H;
or
(4) the first sequence is obtained based on a sequence whose length is H*L, the sequence whose length is H*L is obtained based on (4a) a fourth sequence whose length is L and (4b) the third sequence whose length is H, wherein the fourth sequence whose length is L is obtained based on the second sequence whose length is N,
wherein L is a quantity of subcarriers included in M resource units, and wherein M is a positive integer.

7 more elements

A signal receiving method, comprising:

receiving a first synchronization signal from a network device, wherein the first synchronization signal and a second synchronization signal overlap in time domain, and within a time domain resource in which the first synchronization signal and the second synchronization signal overlap, there is an intersection set between a frequency domain resource corresponding to the first synchronization signal and a frequency domain resource corresponding to the second synchronization signal, wherein the first synchronization signal is generated based on a first sequence, and the second synchronization signal is generated based on a second sequence, wherein the first sequence is obtained based on the second sequence and a third sequence;
and
performing synchronization with the network device based on the first synchronization signal, wherein
the second synchronization signal is corresponding to the network device,
wherein the first sequence has a length of KCL and is obtained based on the second sequence and the third sequence according to at least one of the following:
(1) the first sequence is obtained based on a sequence whose length is K*N, and the sequence whose length is K*N is obtained based on (1a) the second sequence whose length is N and (1b) a fifth sequence whose length is K, wherein the fifth sequence whose length is K is obtained based on the third sequence whose length is H;
(2) the first sequence is obtained based on (2a) a fourth sequence whose length is L and (2b) a fifth sequence whose length is K and which is obtained based on the third sequence whose length is H, wherein the fourth sequence whose length is L is obtained based on the second sequence whose length is N;
(3) the first sequence is obtained based on a sequence whose length is H*N, and the sequence whose length is H*N is obtained based on (3a) the second sequence whose length is N and (3b) the third sequence whose length is H;
or
(4) the first sequence is obtained based on a sequence whose length is H*L, the sequence whose length is H*L is obtained based on (4a) a fourth sequence whose length is L and (4b) the third sequence whose length is H, wherein the fourth sequence whose length is L is obtained based on the second sequence whose length is N,
wherein L is a quantity of subcarriers included in M resource units, and wherein M is a positive integer.

8 more elements

A network device, comprising:

a processor, configured to generate synchronization signals, wherein the synchronization signals include a first synchronization signal and a second synchronization signal;
and
a transceiver, configured to send the synchronization signals, wherein the first synchronization signal and the second synchronization signal overlap in time domain, and within a time domain resource in which the first synchronization signal and the second synchronization signal overlap, there is an intersection set between a frequency domain resource corresponding to the first synchronization signal and a frequency domain resource corresponding to the second synchronization signal, wherein the first synchronization signal is generated based on a first sequence, and the second synchronization signal is generated based on a second sequence, wherein the first sequence is obtained based on the second sequence and a third sequence,
wherein the first sequence has a length of KCL and is obtained based on the second sequence and the third sequence according to at least one of the following:
(1) the first sequence is obtained based on a sequence whose length is K*N, and the sequence whose length is K*N is obtained based on (1a) the second sequence whose length is N and (1b) a fifth sequence whose length is K, wherein the fifth sequence whose length is K is obtained based on the third sequence whose length is H;
(2) the first sequence is obtained based on (2a) a fourth sequence whose length is L and (2b) a fifth sequence whose length is K and which is obtained based on the third sequence whose length is H, wherein the fourth sequence whose length is L is obtained based on the second sequence whose length is N;
(3) the first sequence is obtained based on a sequence whose length is H*N, and the sequence whose length is H*N is obtained based on (3a) the second sequence whose length is N and (3b) the third sequence whose length is H;
or
(4) the first sequence is obtained based on a sequence whose length is H*L, the sequence whose length is H*L is obtained based on (4a) a fourth sequence whose length is L and (4b) the third sequence whose length is H, wherein the fourth sequence whose length is L is obtained based on the second sequence whose length is N,
wherein L is a quantity of subcarriers included in M resource units, and wherein M is a positive integer.

7 more elements

A terminal device, comprising:

a transceiver, configured to receive a first synchronization signal from a network device, wherein the first synchronization signal and a second synchronization signal overlap in time domain, and within a time domain resource in which the first synchronization signal and the second synchronization signal overlap, there is an intersection set between a frequency domain resource corresponding to the first synchronization signal and a frequency domain resource corresponding to the second synchronization signal, wherein the first synchronization signal is generated based on a first sequence, and the second synchronization signal is generated based on a second sequence, wherein the first sequence is obtained based on the second sequence and a third sequence;
and
a processor, configured to perform synchronization with the network device based on the first synchronization signal, wherein
the second synchronization signal is corresponding to the network device,
wherein the first sequence has a length of KCL and is obtained based on (a) the second sequence and (b) the third sequence according to at least one of the following:
(1) the first sequence is obtained based on a sequence whose length is K*N, and the sequence whose length is K*N is obtained based on (1a) the second sequence whose length is N and (1b) a fifth sequence whose length is K, wherein the fifth sequence whose length is K is obtained based on the third sequence whose length is H;
(2) the first sequence is obtained based on (2a) a fourth sequence whose length is L and (2b) a fifth sequence whose length is K and which is obtained based on the third sequence whose length is H, wherein the fourth sequence whose length is L is obtained based on the second sequence whose length is N;
(3) the first sequence is obtained based on a sequence whose length is H*N, and the sequence whose length is H*N is obtained based on (3a) the second sequence whose length is N and (3b) the third sequence whose length is H;
or
(4) the first sequence is obtained based on a sequence whose length is H*L, the sequence whose length is H*L is obtained based on (4a) a fourth sequence whose length is L and (4b) the third sequence whose length is H, wherein the fourth sequence whose length is L is obtained based on the second sequence whose length is N,
wherein L is a quantity of subcarriers included in M resource units, and wherein M is a positive integer.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/377,537Filed 16 Jul 2021 · continuation
Priority: CN 201910104172.618 Jan 2019
Published: US 2021/0345335 A14 Nov 2021
Granted: 23 Jul 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification32 codes

H04L 5/005
Allocation of pilot signals, i.e. of signals known to the receiver: of common pilots, i.e. pilots destined for multiple users or terminals
H04W 56/001
Synchronisation arrangements: synchronization between nodes
H04J 11/0073
Cell search, i.e. determining cell identity [cell-ID]: acquisition of primary synchronisation channel, e.g. detection of cell-ID within cell-ID group
H04J 11/0076
Cell search, i.e. determining cell identity [cell-ID]: acquisition of secondary synchronisation channel, e.g. detection of cell-ID group