Method and apparatus for managing beam in beamforming system

Patent metadata

Field	Value
Publication number	US-9960830-B2
Application number	US-201715477567-A
Country	US
Kind code	B2
Filing date	Apr 3, 2017
Priority date	Apr 4, 2016
Publication date	May 1, 2018
Grant date	May 1, 2018

Abstract

A pre-5th-generation (5G) or 5G communication system for supporting higher data rates Beyond 4th-generation (4G) communication system such as long term evolution (LTE) is provided. In a beam update method of a terminal, measuring a beam reference signal (BRS) transmitted from a base station, determining whether a beam measurement information transmission condition is satisfied, if the beam measurement information transmission condition is satisfied, transmitting beam measurement information to the base station, receiving information about a base station transmitting beam from the base station, and updating information about a terminal receiving beam based on the received information about the base station transmitting beam.

First claim

What is claimed is:

1. A method by a terminal, the method comprising:
measuring a beam reference signal (BRS) transmitted from a base station;
determining whether a beam measurement information transmission condition is satisfied;
if the beam measurement information transmission condition is satisfied, transmitting beam measurement information to the base station;
receiving information about a base station transmitting beam from the base station; and
updating information about a terminal receiving beam based on the received information about the base station transmitting beam.

2. The method of claim 1 , wherein the measuring of the BRS includes measuring a first type reference signal and measuring a second type reference signal in a region identified based on the measured first type reference signal.

3. The method of claim 1 , further comprising:
when a request for a beam measurement information report is received from the base station, transmitting the beam measurement information to the base station.

4. The method of claim 1 , wherein the beam measurement information transmission condition includes instructing the terminal to report the beam measurement information if an absolute value of a difference between beam quality information for the n-th BRS and beam quality information for the (n−1)-th BRS exceeds a predetermined threshold.

5. The method of claim 1 , wherein the beam measurement information transmission condition includes instructing the terminal not to report the beam measurement information for a given time if an absolute value of a difference between beam quality information for the n-th BRS and beam quality information for the (n−1)-th BRS is smaller than a predetermined threshold.

6. A terminal comprising:
a transceiver configured to transmit or receive a signal; and
at least one processor configured to:
measure a beam reference signal (BRS) transmitted from a base station, to determine whether a beam measurement information transmission condition is satisfied,
if the beam measurement information transmission condition is satisfied, transmit beam measurement information to the base station,
receive information about a base station transmitting beam from the base station, and
update information about a terminal receiving beam based on the received information about the base station transmitting beam.

7. The terminal of claim 6 , wherein the at least one processor is further configured to:
measure a first type reference signal, and
measure a second type reference signal in a region identified based on the measured first type reference signal.

8. The terminal of claim 6 , wherein the at least one processor is further configured to, when a request for a beam measurement information report is received from the base station, transmit the beam measurement information to the base station.

9. The terminal of claim 6 , wherein the beam measurement information transmission condition includes instructing the terminal to report the beam measurement information if an absolute value of a difference between beam quality information for the n-th BRS and beam quality information for the (n−1)-th BRS exceeds a predetermined threshold.

10. The terminal of claim 6 , wherein the beam measurement information transmission condition includes instructing the terminal not to report the beam measurement information for a given time if an absolute value of a difference between beam quality information for the n-th BRS and beam quality information for the (n−1)-th BRS is smaller than a predetermined threshold.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Yoo Hyunil
• Kim Jaewon
• Noh Jeehwan
• Ryu Hyunseok
• Son Hyukmin
• Yu Hyunkyu

Classifications

• H04W72/542

  using measured or perceived quality · CPC title

• H01Q3/30

  varying the {relative} phase {between the radiating elements of an array (H01Q3/2605, H01Q3/2658, H01Q3/2682, H01Q3/44 take precedence)} · CPC title

• H04B7/0628

  Diversity capabilities · CPC title

• H04L29/08315

  Electricity · mapped topic

• H04W16/28

  using beam steering · CPC title