Apparatus and method for improving turbo code performance in a communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsNoh-Sun Kim, Yong-Suk Moon
Life of this patent
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Abstract
An apparatus and method for improving turbo code performance in a communication system are provided. In the apparatus, a bit inserter inserts a predetermined number of bits into a transmission information bit stream, if the effective coding rate of a transmission packet is a predetermined coding rate. A turbo encoder turbo-encodes a bit stream received from the bit inserter and outputting code symbols. A rate matcher matches the code symbols to a predetermined size.
Claims18
An apparatus for improving turbo code performance in a communication system, comprising:
- a bit inserter for inserting a predetermined number of bits into a transmission information bit stream, if the effective coding rate of a transmission packet is a predetermined coding rate;
- a turbo encoder for turbo-encoding a bit stream received from the bit inserter and outputting code symbols;
- and
- a rate matcher for matching the code symbols to a predetermined size,
- wherein the rate matcher processes adaptive modulation and coding (AMC) and hybrid automatic repeat request (HARQ) schemes.
An apparatus for improving turbo code performance in a communication system, comprising:
- a turbo encoder for turbo-encoding a transmission information bit stream and outputting code symbols;
- a bit inserter for inserting a predetermined number of bits into the code symbols, if the effective coding rate of a transmission packet is a predetermined coding rate;
- and
- a rate matcher for rate-matching code symbols received from the bit inserter to a predetermined size.
A transmission method in a communication system using a turbo code, comprising the steps of:
- adjusting the size of a transmission information word by inserting a predetermined number of bits into a transmission information bit stream, if the effective coding rate of a transmission packet is a predetermined coding rate;
- generating code symbols by turbo-encoding the size-adjusted information word;
- and
- rate-matching the code symbols to a predetermined size and transmitting the rate-matched code symbols,
- wherein adaptive modulation and coding (AMC) and hybrid automatic repeat request (HARM) schemes are processed by the rate matching.
A transmission method in a communication system using a turbo code, comprising the steps of:
- generating code symbols by turbo-encoding a transmission information bit stream;
- inserting a predetermined number of bits into the code symbols, if the effective coding rate of a transmission packet is a predetermined coding rate;
- and
- rate-matching the bit-inserted code symbols to a predetermined size.
A communication system comprising:
- a rate detector for detecting a coding rate and determining a number of bits to be inserted, when the effective coding rate is one of predetermined coding rates;
- a bit inserter for inserting the number of bits into a transmission information bit stream;
- a turbo encoder for turbo-encoding a bit stream received from the bit inserter and outputting code symbols;
- and
- a rate matcher for matching the code symbols to a predetermined size.
A communication system comprising:
- a turbo encoder for turbo-encoding a transmission information bit stream and outputting code symbols;
- a rate detector for detecting a coding rate and determining a number of bits to be inserted;
- a bit inserter for inserting the number of bits into the code symbols;
- and
- a rate matcher for rate-matching code symbols received from the bit inserter to a predetermined size.
Dependencies are inferred from the claim text.