Patent ID: 8611311

Claim:
A receiver unit configured to receive a wireless signal comprising at least first and second signal instances, each signal instance comprising data and a pilot signal, the receiver unit comprising: a processor configured to: determine a first channel estimate for the first signal instance; use the first channel estimate and a spread pilot signal associated with the first signal instance to estimate a first pilot of the first signal instance; determine a second channel estimate for the second signal instance; and use the second channel estimate and a spread pilot signal associated with the second signal instance to estimate a second pilot of the second signal instance; and a buffer configured to accumulate the estimated first and second pilots, the processor being configured to subtract the accumulated, estimated first and second pilots from the received signal to estimate a pilot-canceled received signal, the processor being configured to use the estimated pilot-canceled received signal to demodulate data of the first signal instance, wherein the buffer is further configured to accumulate (a) the estimated first pilot according to a first estimated time offset of the first signal instance and (b) the estimated second pilot according to a second estimated time offset of the second signal instance.