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Method and apparatus for storing log likelihood ratios in interleaved form to reduce hardware memory

A log-likelihood ratio, memory technology, applied in electrical components, digital transmission systems, forward error control, etc., can solve problems such as data errors

Inactive Publication Date: 2011-02-23
QUALCOMM INC
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

These imperfections lead to errors in the data processed by the receiver

Method used

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  • Method and apparatus for storing log likelihood ratios in interleaved form to reduce hardware memory
  • Method and apparatus for storing log likelihood ratios in interleaved form to reduce hardware memory
  • Method and apparatus for storing log likelihood ratios in interleaved form to reduce hardware memory

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Embodiment Construction

[0022] The detailed description given below in conjunction with the accompanying drawings is intended as an illustration of various aspects of the present disclosure and is not intended to represent the only aspects in which the present disclosure may be practiced. Each aspect described in this disclosure is presented by way of example or illustration only, and is not necessarily to be considered preferred or advantageous over other aspects. The detailed description includes specific details in order to facilitate a comprehensive understanding of the present disclosure. It will be apparent, however, to one skilled in the art that the present disclosure may be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form in order to avoid obscuring the concepts of the disclosure. The use of abbreviations and other descriptive terms is for convenience and clarity only and is not intended to limit the scope of the ...

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Abstract

An apparatus and method for storing log likelihood ratios in an interleaved form comprising receiving a plurality of interleaved codewords (710); obtaining at least one log likelihood ratio (LLR) for the plurality of interleaved codewords (720); storing the at least one LLR in a memory (730); deinterleaving the plurality of interleaved codewords after the at least one LLR has been stored in the memory (740); and performing a bit decision of the deinterleaved codewords using the stored at least one LLR (750).

Description

[0001] Claiming priority under 35 U.S.C. § 119 [0002] This patent application claims priority to Provisional Application No. 61 / 041,212, filed March 31, 2008, entitled "Storing LLRs in Interleaved Form to Reduce Hardware Memory" (Storing LLRs in Interleaved Form to Reduce Hardware Memory), This application is assigned to the assignee of the present application and is hereby expressly incorporated by reference. technical field [0003] The present disclosure generally relates to apparatus and methods for decoding in wireless communication systems. More specifically, the present disclosure relates to storing log-likelihood ratio (LLR) information in an interleaved form. Background technique [0004] Wireless communication systems are widely deployed to provide various types of communication content such as voice, data, and so on. These systems may be multiple-access systems capable of supporting communication with multiple users by sharing available system resources (eg, b...

Claims

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Application Information

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IPC IPC(8): H04L1/00
CPCH04L1/0045H04L1/0071H04L1/1845
Inventor N·N·拉特纳卡J·刘C·斯坦斯基
Owner QUALCOMM INC
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