Information processing device, information processing method, and a program for information processing for performing measurement of first and second frequency bands based on first and second discovery reference signals within first and second periods respectively

Patent metadata

Field	Value
Publication number	US-10200942-B2
Application number	US-201816019272-A
Country	US
Kind code	B2
Filing date	Jun 26, 2018
Priority date	May 9, 2014
Publication date	Feb 5, 2019
Grant date	Feb 5, 2019

Abstract

A device including a measurement unit configured to perform measurement of each of one or more frequency bands that are a part of a plurality of frequency bands that are not used by a terminal device. The measurement unit does not perform measurement of each of the remaining frequency bands among the plurality of frequency bands or performs measurement of each of the remaining frequency bands at a frequency lower than a frequency of the measurements of each of the one or more frequency bands, which makes it possible to improve measurement performed by a terminal device.

First claim

The invention claimed is:

1. A device comprising:
processing circuitry configured to
receive frequency group information on a frequency group including a first frequency band and a second frequency band, and measurement gap information on a measurement gap including a first period and a second period, the frequency group information and the measurement gap information being transmitted from a control entity via a base station, the first period and the second period not overlapping in a tithe direction;
perform, based on the received frequency group information and the received measurement gap information, measurement of the first frequency band based on a first discovery reference signal transmitted in the first frequency band within the first period included in the measurement gap;
perform, based on the received frequency group information and the received measurement gap information, measurement of the second frequency band based on a second discovery reference signal transmitted in the second frequency band within the second period included in the measurement gap; and
report a result of the measurements of the first and second frequency bands to the base station.

2. The device according to claim 1 ,
wherein the measurement gap is an extended measurement gap.

3. The device according to claim 1 ,
wherein the processing circuitry performs the measurement of the first frequency band that is used by the same base station based on a discovery reference signal and a cell-specific reference signal transmitted by the same base station in the first frequency band within the first period, or performs the measurement of the second frequency band that is used by the same base station based on a discovery reference signal and a cell-specific reference signal transmitted by the same base station in the second frequency band within the second period.

4. The device according to claim 1 ,
wherein at least one of the first period and the second period is a period shorter than 6 milliseconds.

5. The device according to claim 1 ,
wherein the processing circuitry performs measurement of a frequency group and measurement of one or more other frequency bands or measurement of one or more other frequency groups based on a priority of the frequency group including the first frequency band and the second frequency band and a priority of the one or more other frequency bands or a priority of the one or more other frequency groups.

6. The device according to claim 1 ,
wherein the measurement gap includes an additional period, and
the processing circuitry performs measurement of an additional frequency band based on a discovery reference signal transmitted in the additional frequency band within the additional period.

7. The device according to claim 1 ,
wherein the first period includes a plurality of first subframes and the second period includes a plurality of second subframes, the first subframes and the second subframes not overlapping in the tune direction.

8. The device according to claim 1 ,
wherein the frequency group information and measurement gap information are transmitted from the control entity in a case it is determined that two or more frequency bands in which a discover reference signal is transmitted exist.

Assignees

• Sony Corp

Inventors

• Uchiyama Hiromasa
• Takano Hiroaki
• Furuichi Sho

Classifications

• H04W72/0453

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title

• H04W24/10

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

• H04W88/02

  Terminal devices · CPC title

• H04W72/04

  Wireless resource allocation · CPC title

• H04W52/0209 Primary

  in terminal devices · CPC title