Beamforming-based communication method and network device

Patent metadata

Field	Value
Publication number	US-12244375-B2
Application number	US-202217720544-A
Country	US
Kind code	B2
Filing date	Apr 14, 2022
Priority date	Oct 16, 2019
Publication date	Mar 4, 2025
Grant date	Mar 4, 2025

Abstract

A beamforming-based communication method includes: obtaining cell information; when the cell information meets a preset low-load condition, dividing to-be-processed broadcast messages into a plurality of broadcast message groups; determining, based on a preset correspondence between a broadcast message and a broadcast beam, a broadcast beam group corresponding to each broadcast message group and a broadcast beam for sending no broadcast message in each time window; sending the broadcast message group in each time window by using the broadcast beam group; and shutting down, in each time window, the broadcast beam for sending no broadcast message. Some broadcast beams are used in each time window to send the broadcast message, and the broadcast beam for sending no broadcast message is shut down.

First claim

What is claimed is:

1. A beamforming-based communication method performed by
a processor,
a memory is coupled to the processor, and the memory comprises instructions that, when executed by the processor, cause the processor to perform operations comprising:
obtaining cell information;
when the cell information meets a preset low-load condition, dividing, based on the cell information, to-be-processed broadcast messages into a plurality of broadcast message groups, wherein the to-be-processed broadcast messages are all broadcast messages to be sent in a time window, each broadcast message group corresponds to one time window, and a length of each time window is equal to a synchronization signal sending periodicity;
wherein the cell information is downlink resource utilization; and the operations further comprise:
based on the downlink resource utilization being less than a first preset threshold, determining that the cell information meets the preset low-load condition and
when the downlink resource utilization is less than the first preset threshold and the downlink resource utilization is greater than or equal to a second preset threshold, dividing the to-be-processed broadcast messages into a first quantity of broadcast message groups; and
when the downlink resource utilization is less than the second preset threshold, dividing the to-be-processed broadcast messages into a second quantity of broadcast message groups, wherein both the first quantity and the second quantity are positive integers greater than 1, the first quantity is less than the second quantity, and the second quantity is less than or equal to a total quantity of broadcast beams configured for a cell;
determining, based on a preset correspondence between a broadcast message and a broadcast beam, a broadcast beam group corresponding to each broadcast message group and a broadcast beam for sending no broadcast message in each time window;
sending the broadcast message group in each time window by using the broadcast beam group; and
shutting down, in each time window, the broadcast beam for sending no broadcast message.

2. The beamforming-based communication method according to claim 1 , wherein the broadcast message comprises at least one of a synchronization signal block, a system information block type 1 (SIB1) message, other system information (OSI), or a paging message.

3. A beamforming-based communication method
performed by a processor,
a memory is coupled to the processor, and the memory comprises instructions that, when executed by the processor, cause the processor to perform operations comprising:
obtaining cell information;
when the cell information meets a preset low-load condition, dividing, based on the cell information, to-be-processed broadcast messages into a plurality of broadcast message groups, wherein the to-be-processed broadcast messages are all broadcast messages to be sent in a time window, each broadcast message group corresponds to one time window, and a length of each time window is equal to a synchronization signal sending periodicity; wherein the cell information is a quantity of access users;
based on the quantity of access users being less than a first preset user quantity, determining that the cell information meets the preset low-load condition;
when the quantity of access users is less than the first preset user quantity and the quantity of access users is greater than or equal to a second preset user quantity, dividing the to-be-processed broadcast messages into a third quantity of broadcast message groups; and
when the quantity of access users is less than the second preset user quantity, dividing the to-be-processed broadcast messages into a fourth quantity of broadcast message groups, wherein both the third quantity and the fourth quantity are positive integers greater than 1, the third quantity is less than the fourth quantity, and the fourth quantity is less than or equal to a total quantity of broadcast beams configured for a cell;
determining, based on a preset correspondence between a broadcast message and a broadcast beam, a broadcast beam group corresponding to each broadcast message group and a broadcast beam for sending no broadcast message in each time window;
sending the broadcast message group in each time window by using the broadcast beam group; and
shutting down, in each time window, the broadcast beam for sending no broadcast message.

4. The beamforming-based communication method according to claim 3 , wherein the broadcast message comprises at least one of a synchronization signal block, a system information block type 1 (SIB1) message, other system information (OSI), or a paging message.

5. A beamforming-based communication method comprising:
executed by a processor,
a memory is coupled to the processor, and the memory comprises instructions that, when executed by the processor, cause the processor to perform operations comprising:
obtaining cell information;
when the cell information meets a preset low-load condition, dividing, based on the cell information, to-be-processed broadcast messages into a plurality of broadcast message groups, wherein the to-be-processed broadcast messages are all broadcast messages to be sent in a time window, each broadcast message group corresponds to one time window, and a length of each time window is equal to a synchronization signal sending periodicity; wherein the cell information compromises downlink resource utilization and a quantity of access users;
based on the downlink resource utilization being less than a first preset threshold and the quantity of access users is less than a first preset user quantity, determining that the cell information meets the preset low-load condition;
when the downlink resource utilization falls within a first downlink resource utilization range and the quantity of access users falls within a first user quantity range, dividing the to-be-processed broadcast messages into a fifth quantity of broadcast message groups, wherein the first downlink resource utilization range is a range that is less than the first preset threshold and not less than a second preset threshold, and the first user quantity range is a range that is less than the first preset user quantity and not less than a second preset user quantity; and
when the downlink resource utilization falls within a second downlink resource utilization range and the quantity of access users falls within a second user quantity range, dividing the to-be-processed broadcast messages into a sixth quantity of broadcast message groups, wherein the second downlink resource utilization range is a range that is less than the second preset threshold, the second user quantity range is a range that is less than the second preset user quantity, both the fifth quantity and the sixth quantity are positive integers greater than 1, the fifth quantity is less than the sixth quantity, and the sixth quantity is less than or equal to a total quantity of broadcast beams configured for a cell;
determining, based on a preset correspondence between a broadcast message and a broadcast beam, a broadcast beam group corresponding to each broadcast message group and a broadcast beam for sending no broadcast message in each time window;
sending the broadcast message group in each time window by using the broadcast beam group; and
shutting down, in each time window, the broadcast beam for sending no broadcast message.

6. The beamforming-based communication method according to claim 5 , wherein the broadcast message comprises at least one of a synchronization signal block, a system information block type 1 (SIB1) message, other system information (OSI), or a paging message.

7. A communication apparatus comprising:
a processor; and
a memory

Assignees

• Huawei Tech Co Ltd

Inventors

• Zhao Wei
• Yu Guohua
• Liu Guanqun
• Wang Daowei
• Xie Bo
• Li Baomin

Classifications

• H04W56/0015

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

• H04W48/16

  Discovering, processing access restriction or access information · CPC title

• H04W48/10

  using broadcasted information · CPC title

• H04B7/063

  Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection · CPC title

• H04B7/0617 Primary

  for beam forming · CPC title