发明公开
EP1476953A1 CODE DIVISION MULTIPLE ACCESS RECEIVER 有权
密码分配多址接收机

  • 专利标题: CODE DIVISION MULTIPLE ACCESS RECEIVER
  • 专利标题(中): 密码分配多址接收机
  • 申请号: EP02801963.6
    申请日: 2002-10-23
  • 公开(公告)号: EP1476953A1
    公开(公告)日: 2004-11-17
  • 发明人: JONES, Alan EdwardTREWREN, David
  • 申请人: IPWireless, Inc.
  • 申请人地址: 1001 Bayhill Drive,2nd Floor San Bruno, CA 94066 US
  • 专利权人: IPWireless, Inc.
  • 当前专利权人: IPWireless, Inc.
  • 当前专利权人地址: 1001 Bayhill Drive,2nd Floor San Bruno, CA 94066 US
  • 代理机构: Jepsen, Rene
  • 优先权: GB0125484 20011024
  • 国际公布: WO2003036811 20030501
  • 主分类号: H04B1/707
  • IPC分类号: H04B1/707 H04J11/00
CODE DIVISION MULTIPLE ACCESS RECEIVER
摘要:
Processing of a received code division multiple access, CDMA, burst (405) when a spreading factor of the CDMA burst (405) has been changed from an allocated spreading factor (SFo) to a new spreading factor (SFn). The received burst (405) is processed with a CDMA detector (310), using the allocated spreading factor (SFo), to provide a CDMA detector output; the new spreading factor (SFn) of the burst is determined; and the CDMA detector output is decimated by a factor determined from the new spreading factor (SFn). The decimator may be a FIR decimator (315) and tap weights may be determined using the values of the new spreading factor (SFn) and the allocated spreading factor (SFo). Application in a Node B (150A) of a UMTS system (100), particularly in UTRA TDD mode, for processing received uplink communication is described.
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