A kind of method and apparatus for determining the Downlink Control Information based on ePDCCH

A kind of method and apparatus for determining the Downlink Control Information based on ePDCCH

  • CN 103,716,121 B
  • Filed: 09/28/2012
  • Issued: 03/08/2019
  • Est. Priority Date: 09/28/2012
  • Status: Active Grant
First Claim
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1. a method of it is used to determine the Downlink Control Information based on ePDCCH at user equipment end, wherein this method includesFollowing steps:

  • A receives the control signaling from eNB, wherein the control signaling includes at least one ePDCCH group and its corresponding matchesConfidence breath follows tradition if the control instruction does not include at least one set rank and its corresponding candidate instruction informationHash function;

    If the b control instruction includes at least one set rank and its corresponding candidate instruction information, wherein the candidate refers toShow information for determining with each quantity for gathering the corresponding candidate ePDCCH of rank, then according to the control signaling, based on answeringFor regional ePDCCH or applied to the predetermined Hash function of distributed ePDCCH, candidate resource index information is determined, whereinThe predetermined Hash function is obtained by modifying traditional hash function, wherein the predetermined Kazakhstan applied to regionality ePDCCHUncommon function include required to monitoring obtainable eCCE total quantity parameter information, it is described pre- applied to distribution ePDCCHDetermine hash function include required to monitoring obtainable eREG total quantity parameter information, wherein candidate resource indexInformation includes eCCE and/or eREG index information corresponding at least one described set rank;

    C executes DCI blind detection operation according to the candidate resource index information, with obtain it is corresponding with the control signaling underRow control information.

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