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

• US 9,750,021 B2
• Filed: 06/13/2013
• Issued: 08/29/2017
• Est. Priority Date: 06/18/2012
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Fuse, Shumpei, Sawada, Shinichi, Ishikura, Katsutoshi, Suzuki, Shigeto, Takagi, Yuhsuke
• Primary Examiner(s): Yao, Kwang B
• Assistant Examiner(s): Bokhari, Syed M
• Application Number:
  US14/408,373
• Publication Number:
  US 20150195837A1
• Time in Patent Office: 1,538 Days
• Field of Search: 370329, 370331, 370312, 370315, 370328, 455436
• CPC Class Codes: H04B 7/022 Site diversity; Macro-diversity using two or more spaced independent antennas H04B7/04
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0098 Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/27 between access points
• CPC Class Codes: H04W 76/34 Selective release of ongoing connections
• CPC Class Codes: H04W 84/045 using private Base Stations, e.g. femto Base Stations, home Node B
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: H04W 88/08 Access point devices

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

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.