Method for measuring wireless communication state in wireless communication system and apparatus therefor

Patent metadata

Field	Value
Publication number	US-10021585-B2
Application number	US-201415031654-A
Country	US
Kind code	B2
Filing date	Nov 7, 2014
Priority date	Nov 7, 2013
Publication date	Jul 10, 2018
Grant date	Jul 10, 2018

Abstract

The present invention relates to a method and an apparatus for performing, by a terminal having multiple antennas, measurement reporting in a wireless communication system. In particular, the method comprises the steps of: receiving a multicast-broadcast single-frequency network (MBSFN) reference signal; performing a measurement for radio resource management for each of the multiple antennas, using the MBSFN reference signal; and reporting the result of the measurement, wherein the result of the measurement is determined on the basis of the measurement values of all diversity branches corresponding to the multiple antennas.

First claim

What is claimed is:

1. A method for performing measurement reporting by a user equipment with a plurality of antennas including a first antenna branch and a second antenna branch in a wireless communication system, the method comprising:
receiving an MBSFN (multicast-broadcast single-frequency network) reference signal;
measuring MBSFN RSRQs (reference signal received qualities) for RRM (radio resource management) on each of the plurality of the antennas by using the MBSFN reference signal; and
reporting a sum of the MBSFN RSRQs to which a correction value for correcting an antenna imbalance between the first antenna branch and the second antenna branch is applied.

2. The method of claim 1 , wherein the correction value is received through higher layer signaling.

3. A user equipment (UE) with a plurality of antennas including a first antenna branch and a second antenna branch for performing measurement reporting in a wireless communication system, the UE comprising:
a radio frequency unit; and
a processor,
wherein the processor is configured to receive an MBSFN (multicast-broadcast single-frequency network) reference signal,
to measure MBSFN RSRQs (reference signal received qualities) for RRM (radio resource management) on each of the plurality of the antennas by using the MBSFN reference signal, and
to report a sum of the MBSFN RSRQs to which a correction value for correcting an antenna imbalance between the first antenna branch and the second antenna branch is applied.

Assignees

• Lg Electronics Inc

Inventors

• Kim Youngtae
• Kim Kijun
• Kim Hyungtae
• Park Jonghyun

Classifications

• H04B17/346

  Noise values (signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR] H04B17/336) · CPC title

• H04W4/06

  Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services · CPC title

• H04B7/0452

  Multi-user MIMO systems · CPC title

• H04B17/24 Primary

  with feedback of measurements to the transmitter · CPC title

• H04W24/10 Primary

  Scheduling measurement reports {; Arrangements for measurement reports} · CPC title