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MULTIPLEXING RESOURCE ELEMENT GROUPS FOR CONTROL CHANNEL ELEMENTS OF CONTROL CHANNELS

  • US 20140071935A1
  • Filed: 09/09/2013
  • Published: 03/13/2014
  • Est. Priority Date: 09/07/2012
  • Status: Abandoned Application
First Claim
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1. A method for constructing a mapping among Resource Element Groups (REGs) and Control Channel Elements (CCEs) in a set of Physical Resource Block (PRB) pairs used for transmitting Physical Downlink Control CHannels (PDCCHs) from a base station to User Equipments (UEs), wherein a PRB pair includes a number of sub-carriers over a Transmission Time Interval (TTI) with the sub-carriers mapped to sixteen REGs having respective indexes, and wherein a CCE includes four REGs or eight REGs in a same PRB pair or in different PRB pairs, the method comprising the steps of:

  • forming four REG groups wherein REG group#0 includes {REG#0, REG#4, REG#8, REG#12}, REG group#1 includes {REG#1, REG#5, REG#9, REG#13}, REG group#2 includes {REG#2, REG#6, REG#10, REG#14}, and REG group#3 includes {REG#3, REG#7, REG#11, REG#15}; and

    mapping a REG group to a CCE when the CCE includes four REGs and mapping a pair of REG groups to a CCE when the CCE includes eight REGs,wherein the pair of REG groups includes either REG group#0 and REG group#2 or REG group#1 and REG group#3.

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