Patent ID: 7940738
Filing Date: 2011-05-10
Classification: H04B,H04L

Abstract:
1. A method of processing a code division multiple access signal comprising data channel information, a pilot signal for providing a training sequence and control channel information used in decoding said data channel information, the method comprising: receiving a CDMA signal; processing the received CDMA signal with a CDMA detector; extracting the control channel information from the processed CDMA signal, the control channel information identifying at least one characteristic of the received CDMA signal; additionally extracting pilot symbol information from the pilot signal, the control channel information being distinct from the pilot symbol information; and using the extracted control channel information, in addition to the extracted pilot symbol information, to equalize a subsequent received signal; wherein extracting the control channel information from the processed CDMA signal comprises performing error correction on the control channel information, the performance of the error correction comprising decoding the control channel information; and wherein extracting the control channel information from the processed CDMA signal further comprises re-encoding the decoded control channel information; wherein using the extracted control channel information, in addition to the extracted pilot symbol information, to equalize the subsequent received signal comprises using the re-encoded decoded control channel information to equalize the subsequent received signal; wherein processing the received CDMA signal comprises filtering the received CDMA signal using filter coefficients; wherein equalizing the subsequent received signal comprises using the re-encoded decoded control channel information to update the filter coefficients; wherein the extracted control channel information comprises a high spreading factor and a low modulation order.