Apparatus and method for transmitting and receiving data in communication/broadcasting system
US-9214960-B2 · Dec 15, 2015 · US
Puncturing scheme based decoder optimizations
US9124403B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9124403-B2 |
| Application number | US-201313975051-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 23, 2013 |
| Priority date | Apr 30, 2013 |
| Publication date | Sep 1, 2015 |
| Grant date | Sep 1, 2015 |
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Abstract
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Systems and methods for decoding bitstreams are described. The bitstreams may be encoded using a punctured convolution code and received from a wireless network. A puncture pattern associated with a modulation and coding scheme used to encode the bitstream is determined, and punctured log-likelihood ratios (LLRs) generated from the bitstream are ignored while decoding the bitstream. The puncture pattern may be characterized by one or more algorithms that identify punctured LLRs in a repetitive sequence of LLRs. A decoder may exclude punctured LLRs from calculations related to bitstream decoding. The decoder may comprise a Viterbi decoder or an algebraic decoder. Other aspects, embodiments, and features are also claimed and described.
First claim
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What is claimed is: 1. In a wireless communication device having a modem, the modem comprising: a receiver circuit; and a decoder coupled to the receiver circuit, wherein the decoder is configured to: use a pattern recognition algorithm to determine a puncture pattern in a bitstream received by the receiver circuit, the puncture pattern being associated with a modulation and coding scheme (MCS) used to encode a message transmitted in the bitstream; and ignore a plurality of l…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H03M13/6362Primary
Electricity · mapped topic
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- What does patent US9124403B2 cover?
- Systems and methods for decoding bitstreams are described. The bitstreams may be encoded using a punctured convolution code and received from a wireless network. A puncture pattern associated with a modulation and coding scheme used to encode the bitstream is determined, and punctured log-likelihood ratios (LLRs) generated from the bitstream are ignored while decoding the bitstream. The punctur…
- Who is the assignee on this patent?
- Qualcomm Inc
- What technology area does this patent fall under?
- Primary CPC classification H03M13/6362. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 01 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).