IP Library › Granted Patent US 9,750,021
Granted Patent B2
US 9,750,021 · App. 14/408,373 · Granted Aug 29, 2017

Wireless communication system, wireless communication method, mobile station device, base station device, program, and recording medium

Inventors: Shumpei Fuse (Osaka, JP); Shinichi Sawada (Osaka, JP); Katsutoshi Ishikura (Osaka, JP); Shigeto Suzuki (Osaka, JP); Yuhsuke Takagi (Osaka, JP)
Assignee: Sharp Kabushiki Kaisha
H04W72/0453H04B7/022H04L5/001H04L5/0098H04W24/08H04W72/0426H04W76/066H04W84/045H04W88/06H04W88/08
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Quick Facts
Patent No.
US 9,750,021
App. No.
14/408,373
Granted
Aug 29, 2017
Kind
B2
Abstract

A wireless communication system includes a first base station device, a second base station device, a mobile station device configured to communicate with the first base station device using a first component carrier and to communicate with the second base station device using a second component carrier. The first base station device includes a disconnection preparation requesting unit configured to transmit to the second base station device, a disconnection preparation request that requests the second base station device to prepare to disconnect the second component carrier.

Claims (9)

1. A wireless communication system comprising:

a first base station device;

a second base station device; and

a mobile station device configured to communicate with the first base station device using a first component carrier and to communicate with the second base station device using a second component carrier, wherein

the second base station device comprises:

carrier aggregation communication rejection determining circuitry that determines, based on a result of measurement of a communication environment, whether or not to disconnect the second component carrier; and

carrier aggregation communication rejection requesting circuitry that transmits, in a case that the carrier aggregation communication rejection determining circuitry determines to disconnect the second component carrier, to the first base station device, a carrier aggregation communication rejection request that requests the first base station device to reject carrier aggregation communication, and

the first base station device comprises:

disconnection preparation requesting circuitry that transmits, upon receiving the carrier aggregation communication rejection request, to the second base station device, a disconnection preparation request that requests the second base station device to prepare to disconnect the second component carrier.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 17, 2014
From: FUSE, SHUMPEI; SAWADA, SHINICHI; ISHIKURA, KATSUTOSHI; SUZUKI, SHIGETO; TAKAGI, YUHSUKE
To: SHARP KABUSHIKI KAISHA
Reel/Frame 034527/0263 →
Priority Claims (2)
JP 2012-136980 · Jun 18, 2012 · national
JP 2012-158998 · Jul 17, 2012 · national
Continuity (1)
Related Publication 20150195837A1 · Jul 9, 2015