公开(公告)号：HK1056075A1

公开(公告)日：2004-01-30

申请号：HK03108242

申请日：2003-11-13

Applicant: QUALCOMM INC

Inventor： PETER BLACK J

IPC: H04B7/005 ,  H04W36/18 ,  H04W36/30 ,  H04W52/40

Abstract: A communication system including a closed loop power control system. Prior to allowing a handoff to a new base station, the subscriber station verifies that its reverse link signal is being received by the destination base station with sufficient energy. The determination is made based on the received reverse link power control commands from the base station. Moreover, a handoff may be forced when the base station providing the best forward link signal is not receiving the reverse link signal from the subscriber station with sufficient energy.

公开(公告)号：HK1045229A1

公开(公告)日：2002-11-15

申请号：HK02106623

申请日：2002-09-09

Applicant: QUALCOMM INC

Inventor： LING FUNYUN ,  PETER BLACK J ,  KENNETH EASTON D

IPC: H04B1/7075 ,  H04B1/707 ,  H04L20090101 ,  H04B1/709 ,  H04L27/00 ,  H04L27/233

Abstract: Coherent detection of high-speed digital wireless communications becomes more difficult when the frequencies of the transmitter and receiver oscillators do not coincide. A frequency-locked loop may be used to characterize this frequency offset by processing the samples received on a pilot channel. Rather than using the offset information thus derived to correct the frequency of the received signal, the invention realizes a considerable computational savings by applying a frequency correction to the despread pilot samples instead.