Pilot synchronization channel structure for CDMA mobile communication system
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United States of America Patent
Stats
-
Nov 15, 2005
Grant Date -
Dec 6, 2001
app pub date -
May 31, 2001
filing date -
Aug 9, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention discloses a pilot synchronization channel structure for mobile communication systems. The channel structure includes a pilot channel overlapping a synchronization channel (SCH), defined in the wideband code division multiple access (WCDMA) protocol. Each frame of the pilot channel consists of plural time slots. Each time slot is packed with pre-selected pilot symbols, after spread spectrum and scrambling. The overlap can be defined as search code of one symbol length with pilot signal of m-1 symbols length by intermittent overlap. The overlap can also be defined as search code of one symbol length with pilot signal of m symbols length by continuous overlap. The invention combines organically both CDMA 2000 and WCDMA standards to provide better pilot and synchronization functions.
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