Method and apparatus of primary cell indication for enhanced control channel demodulation
First Claim
1. A method for performing blind decoding in a wireless communication system, the method comprising:
- performing, by a user equipment (UE), a first blind decoding in a cell-specific search space on a cell for detecting a Physical Downlink Control Channel (PDCCH);
receiving, by the UE, a Radio Resource Control (RRC) message including information on a UE-specific search space, for monitoring an enhanced-PDCCH (EPDCCH) and identity information; and
performing, by the UE, a second blind decoding in the UE-specific search on the cell for detecting the EPDCCH,wherein the PDCCH is demodulated based on a physical cell identity of the cell,wherein the EPDCCH is demodulated based on the identity information, andwherein the identity information used to demodulate the EPDCCH is different from the physical cell identity used to demodulate the PDCCH.
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Abstract
A method is provided for receiving a downlink control channel in a wireless communication system. A user equipment performs a blind decoding in a first search space on the cell to find a first Physical Downlink Control Channel (PDCCH). The user equipment receives a Radio Resource Control (RRC) message including information on a second search space for monitoring a second PDCCH and identity information, and performs a blind decoding in the second search space on the cell to find the second PDCCH. The first PDCCH is demodulated based on a physical cell identity of the cell, and the second PDCCH is demodulated based on the identity information instead of the physical cell identity.
15 Citations
10 Claims
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1. A method for performing blind decoding in a wireless communication system, the method comprising:
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performing, by a user equipment (UE), a first blind decoding in a cell-specific search space on a cell for detecting a Physical Downlink Control Channel (PDCCH); receiving, by the UE, a Radio Resource Control (RRC) message including information on a UE-specific search space, for monitoring an enhanced-PDCCH (EPDCCH) and identity information; and performing, by the UE, a second blind decoding in the UE-specific search on the cell for detecting the EPDCCH, wherein the PDCCH is demodulated based on a physical cell identity of the cell, wherein the EPDCCH is demodulated based on the identity information, and wherein the identity information used to demodulate the EPDCCH is different from the physical cell identity used to demodulate the PDCCH. - View Dependent Claims (2, 3, 4, 5)
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6. A wireless apparatus configured for performing blind decoding in a wireless communication system, the wireless apparatus comprising:
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a transceiver configured to receive radio signals; and a processor operatively coupled with the transceiver and configured to; perform a first blind decoding in a cell-specific search space on a cell for detecting a Physical Downlink Control Channel (PDCCH), control the transceiver to receive a Radio Resource Control (RRC) message including information on a user equipment (UE)-specific search space, for monitoring an enhanced-PDCCH (EPDCCH) PDCCH, and identity information, and perform a second blind decoding in the UE-specific search space on the cell for detecting the EPDCCH, wherein the PDCCH is demodulated based on a physical cell identity of the cell, wherein the EPDCCH is demodulated based on the identity information, and wherein the identity information used to demodulate the EPDCCH is different from the physical cell identity used to demodulate the PDCCH. - View Dependent Claims (7, 8, 9, 10)
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Specification