Abstract:
A turbo code encoder with an interleaver having two recursive systematic constituent code (RSC) encoders. The encoder encodes a finite sequence of informative bits without requiring a plurality of tail bits to flush the registers of each encoder to an all-zero state. The interleaver reduces the turbo code overhead by using only a single tail bit sequence. The interleaver also selectively reorders integers in accordance with a predefined set of rules.
Abstract:
Outer loop/weighted open loop power control method controls transmission power levels in a spread spectrum time division duplex communication base station. The base station receives a communication including a transmitted power level and measures its received power level. Based in part on the measured power level and the transmitted power level, a path loss estimate is determined. A quality of the path loss estimate is also determined. The transmission power level for a communication from the base station is based in part on weighting the path loss estimate in response to the estimate's quality.
Abstract:
Outer loop/weighted open loop power control apparatus controls transmission power levels in a spread spectrum time division duplex communication user equipment (UE). The user equipment receives a communication including an transmitted power level and measures its received power level. Based in part on the measured power level and the transmitted power level, a path loss estimate is determined. A quality of the path loss estimate is also determined. The transmission power level for a communication from the user equipment is based on in part weighting the path loss estimate in response to the estimate's quality.