Back to results
US 7,890,833 B2Granted
Wireless communication using codeword encoded with high-rate code
AssigneeIntel Corporation
InventorsBo Xia, Minnie Ho, Eric Jacobsen
Life of this patent
Estimating the term…
Abstract
Embodiments of the present invention provide methods and apparatus for wireless communication using codeword with high-rate codes. Other embodiments may be described and claimed.
Claims18
A method, comprising:
- allocating, by a receiver within a wireless communication system, a fixed amount of memory for codeword processing;
- receiving, at the receiver, a codeword encoded with a high code rate;
- adjusting expansion factors for a high-rate portion of an H-matrix of a low-density parity check code (LDPC) to fully utilize the fixed amount of memory in decoding of the codeword;
- determining that incremental redundancy is desired;
- and
- reducing the expansion factors, based on said determining that the incremental redundancy is desired, such that a desired mother code rate fits in the fixed amount of memory for a mother codeword length corresponding to a size of the fixed amount of memory.
3 more elements
An apparatus comprising:
- a receive block adapted to receive a codeword encoded with a high code rate;
- and
- a decode block configured:
- to allocate a fixed amount of memory for codeword processing;
- to adjust expansion factors for a high-rate portion of an H-matrix to fully utilize the fixed amount of memory in decoding of the codeword;
- to determine that incremental redundancy is desired;
- and
- to reduce, based on said determination that incremental redundancy is desired, the expansion factors such that a desired mother code rate fits in the fixed amount of memory for a mother codeword length corresponding to a size of the fixed amount of memory.
5 more elements
An article of manufacture comprising:
- a storage medium;
- and
- a set of instructions stored in the storage medium, which when executed by a processor causes an apparatus to perform operations comprising:
- allocating a fixed amount of memory for codeword processing;
- determining whether incremental redundency is desired;
- and
- adjusting expansion factors of a low density parity check code based on said determining of whether incremental redundancy is desired, wherein the expansion factors are adjusted such that a desired mother code rate fits in the fixed amount of memory for a mother codeword length corresponding to a size of the fixed amount of memory.
4 more elements
Dependencies are inferred from the claim text.