Technique of encoding harq feedback information with two separate codewords with unequal error protection for dtx and ack/nack

A technology of feedback information and error protection, applied in the direction of unequal error protection, error prevention, transmission path separation device, etc., can solve problems such as data throughput loss, simplify system planning and configuration, reduce damage and operation errors The effect of the risk

Inactive Publication Date: 2012-10-24
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Significant loss of data throughput may occur due to such errors
[0021] Therefore, the problem of enhanced error protection for encoding DL HARQ feedback information arises

Method used

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  • Technique of encoding harq feedback information with two separate codewords with unequal error protection for dtx and ack/nack
  • Technique of encoding harq feedback information with two separate codewords with unequal error protection for dtx and ack/nack
  • Technique of encoding harq feedback information with two separate codewords with unequal error protection for dtx and ack/nack

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Embodiment Construction

[0050] In the following, for purposes of illustration and not limitation, specific details are set forth, such as particular sequences of steps, components and configurations, in order to provide a thorough understanding of the present invention. It will be apparent to those skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. For example, although embodiments will be described with respect to E-UTRA, LTE, and LTE-Advanced systems, it will be apparent to those skilled in the art that the invention can also be practiced in the context of other systems. Also, although embodiments will be described with respect to a particular HARQ feedback indicator having a particular bit length, the invention can also be practiced with different bit lengths. Again, although embodiments will be described with respect to a certain number of aggregated component carriers, the invention can also be practiced with a different n...

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Abstract

A technique for encoding downlink Hybrid Automatic Repeat Request, HARQ, feedback information in a mobile station supporting aggregated component carriers is provided. A method implementation of this technique comprises the steps of obtaining (302) first HARQ feedback indicators providing information regarding receipt of Physical Downlink Control Channels, PDCCH, for activated component carriers, obtaining (304) second HARQ feedback indicators providing information regarding decoding of Physical Downlink Shared Channels, PDSCH, codewords carried by the component carriers, encoding (306) the first HARQ feedback indicators into a first coded part, and encoding (308) the first HARQ feedback indicators into a second coded part, wherein the first and the second HARQ feedback indicators are encoded separate from each other.

Description

technical field [0001] The present invention generally relates to the technical field of encoding downlink (DL) hybrid automatic repeat request (HARQ) feedback information. In particular, the present invention relates to a technique for encoding DL HARQ feedback information using a first HARQ feedback indicator and a second HARQ feedback indicator, wherein the first HARQ feedback indicator provides a physical downlink control channel on an activated component carrier (PDCCH), and the second HARQ feedback indicator provide information about the decoding of the Physical Downlink Shared Channel (PDSCH) codeword carried by the component carrier. Background technique [0002] The HARQ protocol is a variation of the ARQ error control protocol. In standard ARQ, error detection (ED) information bits are added to the data to be transmitted, such as cyclic redundancy check (CRC) bits. In HARQ, Forward Error Correction (FEC) bits are also added to the ED bits. HARQ is used in High S...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04L27/26H04L1/00H04L1/16
CPCH04L5/0005H04L1/0073H04L27/2601H04L1/007H04L1/1607H04L2001/0098H04L2001/125H04L1/0088H04L5/0053H04W76/28H04L1/1864H04L1/1812
Inventor 郑荣富R.鲍尔德迈尔D.格尔斯滕伯格D.拉松
Owner TELEFON AB LM ERICSSON (PUBL)
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