SYSTEMS AND METHODS FOR UNEQUAL ERROR PROTECTION AND SOFT DECISION CALCULATIONS
First Claim
1. A wireless communications device, comprising:
- a demodulator configured for computing a plurality of estimated bits for a modulated input signal representing a plurality of symbols associated with a frame, said plurality of estimated bits comprising estimated values for a plurality of frame bits and at least one forward error correction (FEC) error bit encoded into said plurality of symbols; and
at least one FEC decision decoder configured for receiving at least a first portion of said plurality of estimated bits and calculating values for a first portion of said plurality of frame bits associated with said first portion of said plurality of estimated bits,wherein said plurality of estimated bits are computed based on a condition of a communication channel associated with said modulated input signal and a frequency deviation (L) associated with said demodulator.
1 Assignment
0 Petitions
Accused Products
Abstract
A wireless communications device (200) is provided. The device includes a demodulator (210) configured for computing estimated bits for a modulated input signal 220 representing a the symbols associated with a frame, the estimated bits including estimated values for a frame of bits and at least one forward error correction (FEC) error bit encoded into the symbols. The device further includes an FEC decision decoder (212) configured for receiving at least a first portion of the estimated bits and calculating values for a first portion of the frame bits associated with the first portion of said the estimated bits, where the estimated bits are computed based on a condition of a communication channel associated with the modulated input signal and a frequency deviation associated with said demodulator.
-
Citations
20 Claims
-
1. A wireless communications device, comprising:
-
a demodulator configured for computing a plurality of estimated bits for a modulated input signal representing a plurality of symbols associated with a frame, said plurality of estimated bits comprising estimated values for a plurality of frame bits and at least one forward error correction (FEC) error bit encoded into said plurality of symbols; and at least one FEC decision decoder configured for receiving at least a first portion of said plurality of estimated bits and calculating values for a first portion of said plurality of frame bits associated with said first portion of said plurality of estimated bits, wherein said plurality of estimated bits are computed based on a condition of a communication channel associated with said modulated input signal and a frequency deviation (L) associated with said demodulator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method for operating a wireless communications device in a wireless communications network, comprising:
-
demodulating a modulated input signal received over a communication channel, said modulated input signal comprising a plurality of symbols associated with a frame; computing a plurality of estimated bits from said modulated input signal, said plurality of estimated bits comprising estimated values for a plurality of frame bits and at least one forward error correction (FEC) error bit encoded into said plurality of symbols; and calculating values for at least a first portion of said plurality of frame bits associated with said first portion of said plurality of estimated bits, wherein said plurality of estimated bits are computed based on a condition of said communication channel and a frequency deviation (L) associated with said demodulating. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
-
-
18. A method of performing soft decision calculations in a multi-level continuous phase modulation (CPM) system, the method comprising:
-
determining phase and amplitude information for an input modulated signal; and performing said soft decision calculations using the determined phase and amplitude information. - View Dependent Claims (19, 20)
-
Specification