Radio telecommunications receiver operative to receive digital data symbols or bits by iterative determination of soft estimates, and a corresponding method
First Claim
1. A radio telecommunications receiver operative to receive symbols or bits by iterative determination of soft estimates of symbols or bits followed by a hard decision as to what symbol or bit was intended, the receiver comprising:
- a first processor operative to provide first soft estimates of symbols or bits of the received signal, the first processor being a successive interference cancellation (SIC) multiple input multiple output (MIMO) detector;
a second processor operative to decode the first soft estimates and to provide second soft estimates of the symbols or bits;
a combiner operative to provide third soft estimates back to the first processor for subsequent further decoding, the third soft estimates of each symbol or bit being dependent upon the respective second soft estimate and a respective previous second soft estimate;
a deinterleaver operative to deinterleave the first soft estimates from the SIC MIMO detector before the first soft estimates are passed to the second processor; and
an interleaver operative to interleave the third soft estimates provided by the combiner before the third soft estimates are passed back to the SIC MIMO detector.
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Accused Products
Abstract
A radio telecommunications receiver operates to receive digital data symbols or bits by iterative determination of soft estimates of symbols or bits followed by a hard decision as to what symbol or bit was intended. The receiver comprises a first processor operative to provide first soft estimates of symbols or bits of the received signal and a second processor operative to decode the first soft estimates and to provide second soft estimates of the symbols or bits. The receiver also comprises a combiner operative to provide third soft estimates back to the first processor for subsequent further decoding, the third soft estimates of each symbol or bit being dependent upon the respective second soft estimate and a respective previous second soft estimate.
27 Citations
8 Claims
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1. A radio telecommunications receiver operative to receive symbols or bits by iterative determination of soft estimates of symbols or bits followed by a hard decision as to what symbol or bit was intended, the receiver comprising:
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a first processor operative to provide first soft estimates of symbols or bits of the received signal, the first processor being a successive interference cancellation (SIC) multiple input multiple output (MIMO) detector; a second processor operative to decode the first soft estimates and to provide second soft estimates of the symbols or bits; a combiner operative to provide third soft estimates back to the first processor for subsequent further decoding, the third soft estimates of each symbol or bit being dependent upon the respective second soft estimate and a respective previous second soft estimate; a deinterleaver operative to deinterleave the first soft estimates from the SIC MIMO detector before the first soft estimates are passed to the second processor; and an interleaver operative to interleave the third soft estimates provided by the combiner before the third soft estimates are passed back to the SIC MIMO detector. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of receiving symbols or bits in a radio telecommunications receiver by iterative determination of soft estimates of symbols or bits followed by a hard decision as to what symbol or bit was intended, the method comprising the steps of:
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processing the received signal using a successive interference cancellation (SIC) multiple input multiple output (MIMO) detector to provide first soft estimates of symbols or bits of the received signal, decoding the first soft estimates to provide second soft estimates of the symbols or bits, deinterleaving the first soft estimates from the SIC MIMO detector before the first soft estimates are decoded to provide the second soft estimates; producing third soft estimates dependent upon the second soft estimate and a previous second soft estimate of each symbol or bit; providing the third soft estimates back to the SIC MIMO detector for subsequent further decoding; and interleaving the third soft estimates before the third soft estimates are provided back to the SIC MIMO detector.
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Specification