Broadcast data communication method and apparatus, and device

Patent metadata

Field	Value
Publication number	US-12532274-B2
Application number	US-202118017414-A
Country	US
Kind code	B2
Filing date	Jul 27, 2021
Priority date	Jul 27, 2020
Publication date	Jan 20, 2026
Grant date	Jan 20, 2026

Abstract

Disclosed are a broadcast data transmission method and apparatus, and a device. The method includes determining first configuration information of a beam switching position, or, using second configuration information of a second cyclic prefix (CP), and the first configuration information/the second configuration information includes a configured synchronization signal block (SSB) candidate position, a broadcast control channel detection occasion, and a time-domain scheduling parameter of a data channel for receiving broadcast data; and according to the first configuration information/the second configuration information, transmitting an SSB and a broadcast control channel in a beam behind the beam switching position or the CP. By using the method provided in the present disclosure, the problem of efficient reception of broadcast data under beam switching during higher SCS can be solved.

First claim

What is claimed is:

1 . A method for broadcast data communication, comprising:
determining a first configuration information, wherein the first configuration information comprises a configured Synchronization Signal Block, SSB, candidate position, a broadcast control channel monitoring occasion, and a time-domain scheduling parameter of a data channel for receiving broadcast data; transmitting an SSB and a broadcast control channel according to the first configuration information; wherein the SSB candidate position is configured as: each SSB candidate position occupies a fixed number of OFDM symbols, and SSB candidate positions of two adjacent SSBs are discontinuous; wherein in a single-slot configuration, a first SSB candidate position: symbol number 2 / 3 / 4 / 5 , and a second SSB candidate position: symbol number 9 / 10 / 11 / 12 .

2 . The method according to claim 1 , wherein the broadcast control channel monitoring occasion is configured as any one of:
a start symbol of a broadcast control channel corresponding to a first SSB in a slot is a first symbol after a beam switching position of the first SSB, or is in a position same as a position of a start symbol of the first SSB; a start symbol of a broadcast control channel corresponding to a second SSB in the slot is a first symbol after a beam switching position of the second SSB, or is in a position same as a position of a start symbol of the second SSB.

3 . The method according to claim 1 , wherein in response to a mode 1 in which a multiplexing relationship between the SSB and the broadcast control channel is a time division multiplexing, the time-domain scheduling parameter of the data channel are configured as:
at least one time-domain scheduling parameter among {S=2, L=4}, {S=9, L=4}, {S=2, L=11} or {S=6, L=7}; or
at least one time-domain scheduling parameter among {S=3, L=3}, {S=10, L=3}, {S=3, L=10} or {S=6, L=7}; or
at least one time-domain scheduling parameter among {S=1, L=5}, {S=8, L=5}, {S=1, L=12} or {S=6, L=7};
wherein S is a start symbol of the data channel, and L is a quantity of symbols of the data channel;
in response to a mode 3 in which a multiplexing relationship between the SSB and the broadcast control channel is a frequency division multiplexing, the time-domain scheduling parameter of the data channel are configured as:
at least one time-domain scheduling parameter among {S=4, L=2}, {S=7, L=2}, {S=11, L=2}, {S=4, L=9} or {S=6, L=7}; or
at least one time-domain scheduling parameter among {S=5, L=1}, {S=7, L=2}, {S=12, L=1}, {S=5, L=8} or {S=6, L=7}; or
at least one time-domain scheduling parameter among {S=3, L=3}, {S=7, L=2}, {S=10, L=3}, {S=3, L=10} and {S=6, L=7};
wherein S is a start symbol of the data channel, and L is a quantity of symbols of the data channel.

4 . The method according to claim 1 , wherein in response to a mode 3 in which a multiplexing relationship between the SSB and the broadcast control channel being a frequency division multiplexing, the time-domain scheduling parameter of the data channel are configured as:
at least one time-domain scheduling parameter among {S=3, L=4}, {S=10, L=4}, {S=3, L=11}, {S=5, L=9}, {S=5, L=3}, {S=11, L=3} or {S=7, L=7}; or
at least one time-domain scheduling parameter among {S=4, L=3}, {S=11, L=3}, {S=4, L=10}, {S=5, L=9}, {S=6, L=2}, {S=12, L=2} or {S=7, L=7}; or
at least one time-domain scheduling parameter among {S=2, L=5}, {S=9, L=5}, {S=2, L=12}, {S=5, L=9}, {S=4, L=4}, {S=10, L=4} or {S=7, L=7};
wherein S is a start symbol of the data channel, and L is a quantity of symbols of the data channel;
in response to a mode 2 in which a multiplexing relationship between the SSB and the broadcast control channel being a frequency division multiplexing, the broadcast control channel monitoring occasion and the time-domain scheduling parameter of the data channel are configured as:
at least one time-domain scheduling parameter among {S=4, L=2}, {S=7, L=2}, {S=9, L=2}, {S=12, L=2}, {S=4, L=3}, {S=4, L=5}, {S=9, L=3} or {S=9, L=5};
wherein S is a start symbol of the data channel, and L is a quantity of symbols of the data channel.

Assignees

• Datang mobile communications equipment co ltd

Inventors

• Wang Junwei

Classifications

• H04W72/0446

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

• H04W72/30

  Resource management for broadcast services · CPC title

• H04L27/2607

  Cyclic extensions · CPC title

• H04B7/0695

  using beam selection · CPC title

• H04L5/0007

  the frequencies being orthogonal, e.g. OFDM(A) or DMT · CPC title