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Method and apparatus for blind decoding

A technology of blind decoding and successful decoding, which is applied in the field of blind decoding of messages, and can solve problems such as damage to mobile station battery life, high cost, and high possibility of message format

Inactive Publication Date: 2014-08-27
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nevertheless, the totality of message format possibilities is still very large, even limiting the aggregate of CCEs that can be used
This search burden can be computationally expensive, to the point where it impairs the battery life of the mobile station, or even to the point where the mobile station barely has the processing speed necessary to cover the search space in the time allowed

Method used

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  • Method and apparatus for blind decoding
  • Method and apparatus for blind decoding
  • Method and apparatus for blind decoding

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Experimental program
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Embodiment Construction

[0017] figure 2 A simplified illustration of one embodiment of a wireless communication network 10 is presented in which a base station 12 transmits downlink signals to a plurality of mobile stations 14 (eg, mobile stations 14-1 through 14-n). Those skilled in the art will recognize that the network 10 typically includes a plurality of base stations that individually or cooperatively support a potentially large number of mobile stations, and will also recognize that the actual number of mobile stations supported by the illustrated base stations 12 may be dynamic. Amount of change. Also, in at least one embodiment, network 10 is configured according to the LTE / E-UTRA standard as published by 3GPP, and base stations 12 (eg, enhanced NodeBs) and mobile stations 16 are also configured for LTE operation. However, the teachings presented herein have advantageous applicability beyond LTE-based implementations.

[0018] The methods and apparatus taught herein broadly provide for eff...

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Abstract

In accordance with the teachings presented herein, a method and apparatus provide a reduced search space for blind decoding of messages contained in signals received by a communication receiver, where the messages have an unknown format. Improving blind detection efficiency in this manner provides a number of advantages, including but not limited to lower power consumption through reduced processing overhead and lower power consumption through expanded sleep opportunities. As a non-limiting example, the communication receiver includes a mobile station configured for operation in accordance with a Long Term Evolution (LTE) standard (as published by 3GPP for the E-UTRA system), wherein the mobile station is configured to determine the message format likelihood by And based on the message format likelihood, the received DCI message is blindly decoded to reduce the search space of DCI message decoding.

Description

technical field [0001] The present invention relates generally to signal processing, and more particularly to blind decoding of messages in received signals. Background technique [0002] The Evolved Universal Terrestrial Radio Access (E-UTRA) standard under development, as published by the 3rd Generation Partnership Project (3GPP), envisages sending downlink control information (DCI) to the target according to varying message formats mobile station. Because the amount and type of information conveyed in a given message of these downlink messages depends on the message content specific to the target mobile station, the message format (e.g., size, coding, and / or subframe alignment) can vary from message to News changes. Example details for possible DCI message formats are given in section 5.5.3 of 3GPP TS 36.212 V8.2.0 (2008-03). [0003] The technical specification explains that each DCI message conveys uplink power control commands or downlink or uplink scheduling inform...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
CPCH04L1/0038Y02B60/50H04L1/0091H04L1/0046
Inventor B·林多夫M·卡姆夫F·诺德斯特伦
Owner TELEFON AB LM ERICSSON (PUBL)