Invention Grant
US07649967B2 Method and device for estimating a signal to interference ratio (SIR) in wideband code division multiple access (WCDMA) systems 有权
用于估计宽带码分多址(WCDMA)系统中的信干比(SIR)的方法和装置

  • Patent Title: Method and device for estimating a signal to interference ratio (SIR) in wideband code division multiple access (WCDMA) systems
  • Patent Title (中): 用于估计宽带码分多址(WCDMA)系统中的信干比(SIR)的方法和装置
  • Application No.: US10530370
    Application Date: 2003-08-20
  • Publication No.: US07649967B2
    Publication Date: 2010-01-19
  • Inventor: Elias Jonsson
  • Applicant: Elias Jonsson
  • Applicant Address: SE Stockholm
  • Assignee: Telefonaktiebolaget L M Ericsson (Publ)
  • Current Assignee: Telefonaktiebolaget L M Ericsson (Publ)
  • Current Assignee Address: SE Stockholm
  • Agent Michael G. Cameron
  • Priority: EP02022734 20021011
  • International Application: PCT/EP03/09208 WO 20030820
  • International Announcement: WO2004/034614 WO 20040422
  • Main IPC: H03D1/04
  • IPC: H03D1/04
Method and device for estimating a signal to interference ratio (SIR) in wideband code division multiple access (WCDMA) systems
Abstract:
A method and device (100) for estimating a signal to interference ratio (SIR) of a signal transmitted from a first unit and to a remotely located second unit in a Wideband Code Division Multiple Access (WCDMA) wireless communication system. The transmitted TPC (Transmit Power Control) is checked and upon this result the SIR is determined. The checking of the TPC includes the estimation of the previous and the present power using a weighted contribution of the pilots and the data.
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