Invention Grant
- Patent Title: Mobile station apparatus, base station apparatus, communication system, communication method, integrated circuit, and mobile station apparatus control program
- Patent Title (中): 移动站装置，基站装置，通信系统，通信方法，集成电路，移动站装置控制程序
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Application No.: US13636591Application Date: 2011-02-21
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Publication No.: US08976748B2Publication Date: 2015-03-10
- Inventor: Katsunari Uemura
- Applicant: Katsunari Uemura
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2010-068713 20100324
- International Application: PCT/JP2011/053634 WO 20110221
- International Announcement: WO2011/118306 WO 20110929
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04W74/08 ; H04W72/12 ; H04H20/67
Abstract:
When a mobile station apparatus capable of being connected to a base station apparatus by using a plurality of frequency bands performs an uplink transmission, the mobile station apparatus selects the optimum combination among the combinations of a plurality of frequency bands and uplink transmission methods, and performs the uplink transmission. The mobile station apparatus aggregates a plurality of cells to connect the same to a base station apparatus and requests, from the base station apparatus, an uplink radio resource required to transmit uplink data. The mobile station apparatus selects, based on a first condition, an uplink for making a radio resource request using a random access channel from the plurality of cells, and selects, based on a second condition, either the radio resource request using the random access channel or the transmission of uplink data using an uplink radio resource common to other mobile station apparatuses.
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