US 12,137,438 B2
Communication method and apparatus
Xinqian Xie, Beijing (CN); Zhiheng Guo, Beijing (CN); Yongqiang Fei, Shenzhen (CN); and Wenping Bi, Shenzhen (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Jul. 12, 2021, as Appl. No. 17/373,085.
Application 17/373,085 is a continuation of application No. PCT/CN2020/072090, filed on Jan. 14, 2020.
Claims priority of application No. 201910049798.1 (CN), filed on Jan. 18, 2019.
Prior Publication US 2021/0345312 A1, Nov. 4, 2021
Int. Cl. H04W 72/044 (2023.01); H04W 72/30 (2023.01)
CPC H04W 72/044 (2013.01) [H04W 72/30 (2023.01)] 20 Claims
OG exemplary drawing
 
1. A communication method, comprising:
determining, by a network device, a first signal, wherein
the first signal comprises a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a first physical broadcast channel (PBCH),
the first PBCH comprises a first PBCH part, a second PBCH part, a third PBCH part, and a fourth PBCH part,
a frequency domain bandwidth occupied by the PSS, the SSS, and the first PBCH is less than 240 subcarriers, and
the PSS, the SSS, and the first PBCH are mapped to different time-domain symbols such that the PSS is mapped to a first time-domain symbol, the first PBCH part is mapped to a second time-domain symbol, the SSS is mapped to a third time-domain symbol, the second PBCH part is mapped to a fourth time-domain symbol, the third PBCH part is mapped to a fifth time-domain symbol, and the fourth PBCH part is mapped to a sixth time-domain symbol;
sending, by the network device, the first signal; and
sending, by the network device, a second signal, wherein
the second signal comprises a second PBCH, the second PBCH comprises a fifth PBCH part, a sixth PBCH part, the first PBCH part, and the second PBCH part,
the fifth PBCH part and the sixth PBCH part are mapped to the second time-domain symbol, the third time-domain symbol, and the fourth time-domain symbol, and
frequency domain resources of the fifth PBCH part and the sixth PBCH part do not overlap with frequency domain resources of the first PBCH part, the SSS, and the second PBCH part.
 
6. A communication method, comprising:
receiving, by a terminal device, a first signal, wherein
the first signal comprises a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a first physical broadcast channel (PBCH),
the first PBCH comprises a first PBCH part, a second PBCH part, a third PBCH part, and a fourth PBCH part,
a frequency domain bandwidth occupied by the PSS, the SSS, and the first PBCH is less than 240 subcarriers, and
the PSS, the SSS, and the first PBCH are mapped to different time-domain symbols such that the PSS is mapped to a first time-domain symbol, the first PBCH part is mapped to a second time-domain symbol, the SSS is mapped to a third time-domain symbol, the second PBCH part is mapped to a fourth time-domain symbol, the third PBCH part is mapped to a fifth time-domain symbol, and the fourth PBCH part is mapped to a sixth time-domain symbol;
processing, by the terminal device, the first signal; and
receiving, by the terminal device, a second signal, wherein
the second signal comprises a second PBCH, the second PBCH comprises a fifth PBCH part, a sixth PBCH part, the first PBCH part, and the second PBCH part,
the fifth PBCH part and the sixth PBCH part are mapped to the second time-domain symbol, the third time-domain symbol, and the fourth time-domain symbol, and
frequency domain resources of the fifth PBCH part and the sixth PBCH part do not overlap with frequency domain resources of the first PBCH part, the SSS, and the second PBCH part.
 
11. An apparatus, comprising:
a memory storing program instructions; and
a processor in communication with the memory, wherein when the processor executes the program, the apparatus is caused to:
determine a first signal, wherein
the first signal comprises a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a first physical broadcast channel (PBCH),
the first PBCH comprises a first PBCH part, a second PBCH part, a third PBCH part, and a fourth PBCH part,
a frequency domain bandwidth occupied by the PSS, the SSS, and the first PBCH is less than 240 subcarriers, and
the PSS, the SSS, and the first PBCH are mapped to different time-domain symbols such that the PSS is mapped to a first time-domain symbol, the first PBCH part is mapped to a second time-domain symbol, the SSS is mapped to a third time-domain symbol, the second PBCH part is mapped to a fourth time-domain symbol, the third PBCH part is mapped to a fifth time-domain symbol, and the fourth PBCH part is mapped to a sixth time-domain symbol;
send the first signal; and
send a second signal, wherein
the second signal comprises a second PBCH, the second PBCH comprises a fifth PBCH part, a sixth PBCH part, the first PBCH part, and the second PBCH part,
the fifth PBCH part and the sixth PBCH part are mapped to the second time-domain symbol, the third time-domain symbol, and the fourth time-domain symbol, and
frequency domain resources of the fifth PBCH part and the sixth PBCH part do not overlap with frequency domain resources of the first PBCH part, the SSS, and the second PBCH part.
 
16. An apparatus, comprising:
a memory storing program instructions; and
a processor in communication with the memory, wherein when the processor executes the program, the apparatus is caused to:
receive a first signal, wherein
the first signal comprises a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a first physical broadcast channel (PBCH),
the first PBCH comprises a first PBCH part, a second PBCH part, a third PBCH part, and a fourth PBCH part,
a frequency domain bandwidth occupied by the PSS, the SSS, and the first PBCH is less than 240 subcarriers, and
the PSS, the SSS, and the first PBCH are mapped to different time-domain symbols such that the PSS is mapped to a first time-domain symbol, the first PBCH part is mapped to a second time-domain symbol, the SSS is mapped to a third time-domain symbol, the second PBCH part is mapped to a fourth time-domain symbol, the third PBCH part is mapped to a fifth time-domain symbol, and the fourth PBCH part is mapped to a sixth time-domain symbol;
process the first signal; and
receiving a second signal, wherein
the second signal comprises a second PBCH, the second PBCH comprises a fifth PBCH part, a sixth PBCH part, the first PBCH part, and the second PBCH part,
the fifth PBCH part and the sixth PBCH part are mapped to the second time-domain symbol, the third time-domain symbol, and the fourth time-domain symbol, and
frequency domain resources of the fifth PBCH part and the sixth PBCH part do not overlap with frequency domain resources of the first PBCH part, the SSS, and the second PBCH part.