Invention Grant
US08583152B2 Base station apparatus, mobile station, and communications control method 有权
基站装置,移动台和通信控制方法

  • 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
  • Application No.: US12740157
    Application Date: 2008-10-21
  • Publication No.: US08583152B2
    Publication Date: 2013-11-12
  • Inventor: Hiroyuki IshiiYoshihisa Kishiyama
  • Applicant: Hiroyuki IshiiYoshihisa 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
Base station apparatus, mobile station, and communications control method
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.
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