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decode encoded data block

A data block, encoding technique, applied in the field of decoding encoded data blocks

Active Publication Date: 2017-04-12
NVIDIA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can cause problems for receivers when they try to decode chunks of data

Method used

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Embodiment Construction

[0021] The present disclosure recognizes that storing soft information values ​​(eg, LLR values) used in each failed decoding attempt results in a requirement to store large amounts of data. Storing the soft information values ​​in a memory external to the receiver may be preferable in view of the substantial storage requirements for storing the soft information values. In high data rate wireless systems such as systems using the 3GPP LTE protocol, HARQ traffic (ie, the transfer of soft information values ​​between the receiver and memory) may thus place a substantial load on the external memory bandwidth.

[0022] As noted above, the present disclosure provides methods of decoding received encoded data blocks at a receiver. In some embodiments, the memory required to store the soft information values ​​in the data store is reduced due to the compression of the soft information values. Furthermore, by compressing the soft information values ​​before storing them in the data s...

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Abstract

Method, receiver and computer program product for decoding a coded data block received at the receiver are disclosed. A first plurality of coded data bits representing the coded data block are received. First soft information values are determined corresponding to respective ones of the received first plurality of coded data bits, wherein each of the soft information values indicates a likelihood of a corresponding coded data bit having a particular value. An attempt is made to decode the coded data block using the first soft information values. The first soft information values are compressed. The compressed first soft information values are stored in a data store. A second plurality of coded data bits representing the coded data block is received and second soft information values corresponding to respective ones of the received second plurality of coded data bits are determined. The compressed first soft information values are retrieved from the data store and decompressed. The decompressed first soft information values are combined with the second soft information values, and an attempt is made to decode the coded data block using the combined soft information values.

Description

technical field [0001] The present disclosure relates to decoding encoded data blocks, and in particular, the present disclosure relates to decoding received encoded data blocks at a receiver. Background technique [0002] A radio access network allows entities to communicate with each other over wireless radio channels. For example, user equipment (UE) can communicate with network elements such as base stations (or "Node Bs") over a radio access network. When entities communicate with each other, they must adhere to standard protocols so that each entity can correctly interpret data received from other entities. The 3rd Generation Partnership Project (3GPP) is a wireless cellular standard protocol that can be used. [0003] Hybrid Automatic Repeat Request (HARQ) communication can be implemented within the 3GPP protocol. In HARQ communications, blocks of data are encoded for transmission from a transmitter (eg, Node B) to a receiver (eg, UE). When encoded data blocks are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/18
CPCH04L1/005H04L1/1835
Inventor 斯蒂芬·费利克斯丁卡尔·韦苏德万斯泰韦·奥普雷斯
Owner NVIDIA CORP
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