公开(公告)号：US20030099226A1

公开(公告)日：2003-05-29

申请号：US10279698

申请日：2002-10-24

Applicant: IPWIRELESS, INC.

Inventor： Alan Edward Jones ,  David Trewren

IPC: H04L012/28

CPC classification number: H04J13/0044 ,  H04B1/707 ,  H04B2201/70705 ,  H04J13/20

Abstract: 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 (SF0) to a new spreading factor (SFn) The received burst (405) is processed with a CDMA detector (310), using the allocated spreading factor (SF0), 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 (SF0) Application in a Node B (150A) of a UMTS system (100), particularly in UTRA TDD mode, for processing received uplink communication is described.

Abstract translation: 当CDMA突发（405）的扩频因子已经从分配的扩频因子（SF0）改变为新的扩频因子（SFn）时，接收的码分多址，CDMA，突发（405）的处理。接收的突发（405） ）用CDMA检测器（310）处理，使用分配的扩频因子（SF0）来提供CDMA检测器输出; 确定突发的新扩频因子（SFn）; 并且CDMA检测器输出被从新的扩展因子（SFn）确定的因子抽取。 抽取器可以是FIR抽取器（315），并且可以使用UMTS系统（100）的节点B（150A）中的新扩展因子（SFn）和分配的扩展因子（SF0）应用的值来确定抽头权重， ，特别是在UTRA TDD模式中，描述了用于处理接收到的上行链路通信。