Communication method and communication apparatus

Patent metadata

Field	Value
Publication number	US-2025220580-A1
Application number	US-202519080960-A
Country	US
Kind code	A1
Filing date	Mar 17, 2025
Priority date	Sep 16, 2022
Publication date	Jul 3, 2025
Grant date	—

Abstract

A communication method includes receiving a wake-up signal in N time units, and demodulating the wake-up signal. The wake-up signal includes N1 first signals and N2 second signals. Each first signal indicates a first bit value, each second signal indicates a second bit value, a signal power of each first signal is not 0, and a signal power of each second signal is 0. Each first signal occupies one time unit, and each second signal occupies one time unit. Each first signal includes a part whose power is 0 and a part whose power is not 0, a time length of the part whose signal power is not 0 in at least one time unit is greater than 0 and less than a length of the time unit, where N is an integer greater than 1, N1 and N2 are integers greater than or equal to 0, and N1+N2=N.

First claim

1 . A communication method, comprising:
receiving a wake-up signal in N time units, wherein the wake-up signal comprises N1 first signals and N2 second signals, each first signal indicates a first bit value, each second signal indicates a second bit value, a signal power of each first signal is not 0, a signal power of each second signal is 0, each of the N1 first signals occupies one of the N time units, each of the N2 second signals occupies one of the N time units, each first signal comprises a part whose power is 0 and a part whose power is not 0, a time length occupied by the part whose signal power is not 0 in each first signal in at least one of the N time units is greater than 0 and less than a length of each time unit, N is an integer greater than 1, N1 and N2 are integers greater than 0 or equal to 0, and N1+N2=N; and demodulating the wake-up signal.

2 . The method according to claim 1 , further comprising:
receiving indication information, wherein the indication information indicates time information of each first signal, and the time information of each first signal comprises at least one of the following: a ratio of the time length occupied by the part whose signal power is not 0 in each first signal to the length of each time unit, the time length occupied by the part whose signal power is not 0 in each first signal, a ratio of a time length occupied by the part whose signal power is 0 in each first signal to the length of each time unit, or the time length occupied by the part whose signal power is 0 in each first signal.

3 . The method according to claim 2 , wherein the indication information is period value configuration information of a synchronization signal, and an association relationship exists between a period value of the synchronization signal and the time information of each first signal.

4 . The method according to claim 1 , further comprising:
periodically receiving a synchronization signal, wherein an association relationship exists between a period value of the synchronization signal and time information of each first signal, and the time information of each first signal comprises at least one of the following: a ratio of the time length occupied by the part whose signal power is not 0 in each first signal to the length of each time unit, the time length occupied by the part whose signal power is not 0 in each first signal, a ratio of a time length occupied by the part whose signal power is 0 in each first signal to the length of each time unit, or the time length occupied by the part whose signal power is 0 in each first signal.

5 . The method according to claim 1 , further comprising:
receiving configuration information, wherein the configuration information comprises an offset value of the part whose signal power is not 0 in each first signal in each time unit, or an offset value of the part whose signal power is 0 in each first signal in each time unit, wherein the offset value of the part whose signal power is not 0 in each first signal in each time unit is any one of the following: an offset value between a start location of the part whose signal power is not 0 in each first signal and a start location of each time unit, an offset value between the start location of the part whose signal power is not 0 in each first signal and an end location of each time unit, an offset value between an end location of the part whose signal power is not 0 in each first signal and the start location of each time unit, or an offset value between the end location of the part whose signal power is not 0 in each first signal and the end location of each time unit; and the offset value of the part whose signal power is 0 in each first signal in each time unit is any one of the following: an offset value between a start location of the part whose signal power is 0 in each first signal and the start location of each time unit, an offset value between the start location of the part whose signal power is 0 in each first signal and the end location of each time unit, an offset value between an end location of the part whose signal power is 0 in each first signal and the start location of each time unit, and an offset value between the end location of the part whose signal power is 0 in each first signal and the end location of each time unit.

6 . A communication method, comprising:
generating a wake-up signal; and sending the wake-up signal in N time units, wherein the wake-up signal comprises N1 first signals and N2 second signals, each first signal indicates a first bit value, each second signal indicates a second bit value, a signal power of each first signal is not 0, a signal power of each second signal is 0, each of the N1 first signals occupies one of the N time units, each of the N2 second signals occupies one of the N time units, each first signal comprises a part whose power is 0 and a part whose power is not 0, a time length of the part whose signal power is not 0 in each first signal in at least one of the N time units is greater than 0 and less than a length of each time unit, N is an integer greater than 1, N1 and N2 are integers greater than 0 or equal to 0, and N1+N2=N.

7 . The method according to claim 6 , further comprising:
sending indication information, wherein the indication information indicates time information of each first signal, and the time information of each first signal comprises at least one of the following: a ratio of the time length occupied by the part whose signal power is not 0 in each first signal to the length of each time unit, the time length occupied by the part whose signal power is not 0 in each first signal, a ratio of a time length occupied by the part whose signal power is 0 in each first signal to the length of each time unit, or the time length occupied by the part whose signal power is 0 in each first signal.

8 . The method according to claim 7 , wherein the indication information is period value configuration information of a synchronization signal, and an association relationship exists between a period value of the synchronization signal and the time information of each first signal.

9 . The method according to claim 6 , further comprising:
periodically sending a synchronization signal, wherein an association relationship exits between a period value of the synchronization signal and time information of each first signal, and the time information of each first signal comprises at least one of the following: a ratio of the time length occupied by the part whose signal power is not 0 in each first signal to the length of each time unit, the time length occupied by the part whose signal power is not 0 in each first signal, a ratio of a time length occupied by the part whose signal power is 0 in each first signal to the length of each time unit, or the time length occupied by the part whose signal power is 0 in each first signal.

10 . The method according to claim 6 , further comprising:
sending configuration information, wherein the configuration information comprises an offset value of the part whose signal power is not 0 in each first signal in each time unit, or an offset value of the part whose signal power is 0 in each first signal in each time unit, wherein the offset value of the part whose signal power is not 0 in each first signal in each time unit is any one of the following: an offset value between a start location of the part whose signal power is not 0 in each first signal and a start location of each time unit, an offset value between the start location of the part whose signal power is not 0 in each first signal and an end location of each time unit, an offset value between an end location of the part whose signal power is not 0 in each fir

Assignees

• Huawei Tech Co Ltd

Inventors

• Xue Yifan
• Xue Lixia
• Li Qiang

Classifications

• H04W52/028

  switching on or off only a part of the equipment circuit blocks · CPC title

• H04W52/0235

  where the received signal is a power saving command · CPC title

• H04W52/0229 Primary

  where the received signal is a wanted signal · CPC title

• H04W52/0216 Primary

  using a pre-established activity schedule, e.g. traffic indication frame · CPC title

• H04W56/0015

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