Patent ID: 8095168
Filing Date: 2012-01-10
Classification: H04W

Abstract:
1. A method for performing closed loop transmit power control of a fractional dedicated physical channel (F-DPCH), the method comprising: receiving transmit power control (TPC) symbols on an F-DPCH and common pilot channel (CPICH) symbols; calculating a short term signal power estimate using the TPC symbols; calculating a short term noise power estimate using the CPICH symbols; calculating a short term signal-to-interference ratio (SIR) on the F-DPCH by dividing the short term signal power estimate with the short term noise power estimate; calculating a long term signal power estimate using the TPC symbols; calculating a long term noise power estimate using the TPC symbols; calculating a long term SIR by dividing the long term signal power estimate with the long term noise power estimate; comparing the long term SIR to a TPC quality target; adjusting an SIR target based on comparison of the long term SIR to the TPC quality target; comparing the short term SIR to the SIR target; and generating a TPC command based on comparison of the short term SIR to the SIR target.