Beam management method, apparatus thereof and beam management device

Patent metadata

Field	Value
Publication number	US-12439277-B2
Application number	US-202318137017-A
Country	US
Kind code	B2
Filing date	Apr 20, 2023
Priority date	May 11, 2020
Publication date	Oct 7, 2025
Grant date	Oct 7, 2025

Abstract

A beam management method, an apparatus thereof and an intelligent beam management device. The method includes querying a database according to position information (x0, y0, z0) of a terminal equipment, the database including multiple entries, each entry containing beam measurement related information of a point (xi, yi, zi), selecting entries corresponding to points in a predetermined range of the terminal equipment from the database; selecting no more than a first number of identifiers (IDs) of base station transmitter beams with the highest number of occurrences from all the selected entries; and determining a base station transmitter beam serving the terminal equipment according to whether beams corresponding to the no more than a first number of IDs of base station transmitter beams belong to a serving base station or another base station.

First claim

What is claimed is:

1. A beam management apparatus comprising:
a memory; and
processor circuitry coupled to the memory and configured to:
perform beam selection based on beam measurement related information,

wherein the beam measurement related information includes:
a value of a Reference Signal Received Power; and
a weight, wherein
the weight represents confidence of a beam measurement result; or
the weight is proportional to the number of beams searched, and

the beam measurement related information further includes part or all of the following information:
a position information;
a base station transmitter beam identifier;
whether a beam measurement result is optimal; and
a timestamp.

2. The beam management apparatus according to claim 1 , wherein,
the base station transmitter beam identifier corresponds to a beam identifier with the highest Reference Signal Received Power among one or more beams for measurement, the one or more beams being configured by a serving base station.

3. The beam management apparatus according to claim 1 , wherein
if a beam measurement for performing the beam selection is based on an exhaustive beam search, a measurement result that is reported is considered optimal.

4. The beam management apparatus according to claim 1 , wherein,
the timestamp indicates a time when the measurement result has been collected, or the timestamp includes the date and time.

5. The beam management apparatus according to claim 1 , wherein
the processor circuitry is further configured to:
query a database according to position information of a terminal equipment, the database including multiple entries, each entry recording beam measurement related information of a position, and
select entries corresponding to positions in a predetermined range area of the position of the terminal equipment from the database.

6. The beam management apparatus according to claim 5 , wherein
the processor circuitry is further configured to:
acquire beam measurement related information of the terminal equipment, and
fill the beam measurement related information of the terminal equipment into a database.

7. The beam management apparatus according to claim 5 , wherein
the processor circuitry is further configured to select a first number of base station transmitter beam identifiers with the highest number of occurrences from all the selected entries.

8. The beam management apparatus according to claim 7 , wherein the processor circuitry is further configured to determine base station transmitter beams serving the terminal equipment according to whether beams corresponding to the selected first number of base station transmitter beam identifiers belong to a serving base station or another base station, wherein
in the beams corresponding to the selected first number of base station transmitter beam identifiers, if the number of beams belonging to the other base station is greater than the number of beams belonging to the serving base station, the processing unit hands the terminal equipment over to the other base station, and determines a base station transmitter beam serving the terminal equipment according to a beam selection result of the other base station, and
in the beams corresponding to the selected first number of base station transmitter beam identifiers, if the number of beams belonging to the serving base station is greater than or equal to the number of beams belonging to the other base station, the processing unit selects a base station transmitter beam serving the terminal equipment according to the beams belonging to the serving base station.

9. The beam management apparatus according to claim 8 , wherein selecting a base station transmitter beam serving the terminal equipment by the processor circuitry according to the beams belonging to the serving base station comprises:
transmitting, to the serving base station, base station transmitter beam identifiers of the beams belonging to the serving base station in the beams corresponding to the selected first number of base station transmitter beam identifiers and the highest received signal power strength corresponding to these beams;
receiving a beam selection result fed back by the serving base station; and
updating the database according to the beam selection result.

10. The beam management apparatus according to claim 8 , wherein selecting a base station transmitter beam serving the terminal equipment by the processing unit according to the beams belonging to the serving base station comprises:
configuring the terminal equipment to perform Reference Signal Received Power measurement on the beams corresponding to the selected first number of base station transmitter beam identifiers and selecting a beam with the highest received signal power strength;
determining whether a difference between the received signal power strength of the selected beam and the highest received signal power strength in the received signal power strengths associated with the beams corresponding to the selected first number of base station transmitter beam identifiers in the database is less than a second threshold; performing beam adjustment for the terminal equipment to obtain a beam selection result if it is determined yes; taking the selected beam as the beam selection result if it is determined no; and
updating the database according to the beam selection result.

11. The beam management apparatus according to claim 7 , wherein the number of occurrences of each base station transmitter beam identifier is the sum of all weights of all entries corresponding to the base station transmitter beam identifier in all the selected entries, or the sum of numbers of all entries corresponding to the base station transmitter beam identifier in all the selected entries.

12. The beam management apparatus according to claim 1 , wherein the apparatus is applied in a network device or a multiple access edge cloud.

13. The beam management apparatus according to claim 1 , wherein the beam selection comprises acquiring multi-path fingerprints by performing offline training for dedicated period of time and online learning for beam adjustment, the multi-path fingerprints being multipath channel characteristics associated with locations which are obtained through a beam measurement.

14. A beam measurement apparatus configured to:
a memory; and
processor circuitry coupled to the memory and configured to:
report beam measurement related information to the network device for intelligent beam management, wherein

the beam measurement related information includes:
a value of a Reference Signal Received Power; and
a weight, wherein
the weight represents confidence of a beam measurement result; or
the weight is proportional to the number of beams searched, and

the beam measurement related information further includes part or all of the following information:
a position information;
a base station transmitter beam identifier;
whether a beam measurement result is optimal; and
a timestamp.

15. The beam measurement apparatus according to claim 14 , wherein,
the base station transmitter beam identifier corresponds to the beam identifier with the highest Reference Signal Received Power among one or more beams for measurement, the one or more beams being configured by a serving base station.

16. The beam measurement apparatus according to claim 14 , wherein if a beam measurement is based on an exhaustive beam search, the reported measurement result is considered optimal.

17. The beam measurement apparatus accordin

Assignees

• Fujitsu Ltd

Inventors

• Yi Su
• Sun Gang
• Wang Xin

Classifications

• H04B7/0695

  using beam selection · CPC title

• H04B7/06952

  Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping · CPC title

• G06F16/245

  Query processing · CPC title

• G06F16/29

  Geographical information databases · CPC title

• H04B7/0617

  for beam forming · CPC title