Invention Grant
- Patent Title: Base station apparatus, mobile station, and communications control method
- Patent Title (中): 基站装置,移动台和通信控制方法
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Application No.: US12740157Application Date: 2008-10-21
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Publication No.: US08583152B2Publication Date: 2013-11-12
- Inventor: Hiroyuki Ishii , Yoshihisa Kishiyama
- Applicant: Hiroyuki Ishii , Yoshihisa Kishiyama
- Applicant Address: JP Tokyo
- Assignee: NTT DoCoMo, Inc.
- Current Assignee: NTT DoCoMo, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Osha Liang LLP
- Priority: JP2007-282439 20071030
- International Application: PCT/JP2008/069054 WO 20081021
- International Announcement: WO2009/057483 WO 20090507
- Main IPC: H04B15/00
- IPC: H04B15/00

Abstract:
A base station apparatus which communicates in uplink with a mobile station using a random access channel is disclosed. The base station apparatus includes a preamble-sequence securing unit which secures, as preamble sequences not to be used in signal transmission, some preamble sequences of multiple preamble sequences used in the random access channel; and an interference power estimating unit which estimates interference power using the preamble sequences not to be used in the signal transmission.
Public/Granted literature
- US20100255867A1 BASE STATION APPARATUS, MOBILE STATION, AND COMMUNICATIONS CONTROL METHOD Public/Granted day:2010-10-07
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