METHOD FOR SEARCHING FOR ENHANCED PHYSICAL DOWNLINK CONTROL CHANNEL REGION
First Claim
1. A method for searching for an Enhanced Physical Downlink Control Channel (E-PDCCH) in a wireless access system, the method comprising;
- searching for a legacy Physical Downlink Control Channel (PDCCH) by blind-decoding a control channel region; and
searching for the E-PDCCH based on the detected legacy PDCCH,wherein the legacy PDCCH always occupies all of first, second, and third symbols of a subframe to which the E-PDCCH is allocated.
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Abstract
The present invention relates to methods for searching an enhanced physical downlink control channel (E-PDCCH), and a device for supporting the methods. According to one embodiment of the present invention, a method for searching an enhanced physical downlink control channel (E-PDCCH) in a wireless access system can comprise the steps of: performing a blind decoding on a control channel region and searching a legacy physical downlink control channel (PDCCH); and searching the E-PDCCH on the basis of the searched legacy PDCCH. In this case, in a subframe to which the E-PDCCH is allocated, using all symbols of the subframe from a first symbol to a third symbol is always preferred for allocation of the legacy PDCCH.
59 Citations
12 Claims
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1. A method for searching for an Enhanced Physical Downlink Control Channel (E-PDCCH) in a wireless access system, the method comprising;
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searching for a legacy Physical Downlink Control Channel (PDCCH) by blind-decoding a control channel region; and searching for the E-PDCCH based on the detected legacy PDCCH, wherein the legacy PDCCH always occupies all of first, second, and third symbols of a subframe to which the E-PDCCH is allocated. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A User Equipment (UE) for searching for an Enhanced Physical Downlink Control Channel (E-PDCCH) in a wireless access system, the UE comprising;
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a transmission module; a reception module; and a processor configured to search for the E-PDCCH, wherein the processor searches for a legacy Physical Downlink Control Channel (PDCCH) by blind-decoding a control channel region, and searches for the E-PDCCH based on the detected legacy PDCCH, and wherein the legacy PDCCH always occupies all of first, second, and third symbols of a subframe to which the E-PDCCH is allocated. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification