Method and apparatus of primary cell indication for enhanced control channel demodulation
First Claim
1. A method for receiving a downlink control channel in a wireless communication system, the method comprising:
- receiving, by a user equipment, synchronization signals on a cell;
determining, by the user equipment, a physical cell identity of the cell based on the synchronization signals;
performing, by the user equipment, a blind decoding in a first search space on the cell to find a first Physical Downlink Control Channel (PDCCH);
receiving, by the user equipment, a Radio Resource Control (RRC) message including configuration information on the cell, the configuration information including information on a second search space for monitoring a second PDCCH and identity information, wherein the information on the second search space includes information on a size of the second search space and information on a location of the second search space; and
performing a blind decoding in the second search space on the cell to find the second PDCCH using the configuration information,wherein the first PDCCH is demodulated based on the physical cell identity, andwherein the second PDCCH is demodulated based on the identity information included in the configuration information of the RRC message, instead of the physical cell identity determined based on the synchronization signals.
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Abstract
Method and apparatus of primary cell indication for enhanced control channel demodulation method and apparatus are disclosed. Control information receiving method in a multi-distributed node system includes demodulating a first cell identification (ID) based on a synchronization signal (SS), demodulating information indicating a second cell ID based on a radio resource control (RRC) message and demodulating enhanced physical downlink control channel (e-PDCCH) based on the second cell ID, Accordingly, it may be possible to reduce complexity that occurs when the optimal prediction motion vector is induced and to enhance efficiency.
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Citations
8 Claims
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1. A method for receiving a downlink control channel in a wireless communication system, the method comprising:
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receiving, by a user equipment, synchronization signals on a cell; determining, by the user equipment, a physical cell identity of the cell based on the synchronization signals; performing, by the user equipment, a blind decoding in a first search space on the cell to find a first Physical Downlink Control Channel (PDCCH); receiving, by the user equipment, a Radio Resource Control (RRC) message including configuration information on the cell, the configuration information including information on a second search space for monitoring a second PDCCH and identity information, wherein the information on the second search space includes information on a size of the second search space and information on a location of the second search space; and performing a blind decoding in the second search space on the cell to find the second PDCCH using the configuration information, wherein the first PDCCH is demodulated based on the physical cell identity, and wherein the second PDCCH is demodulated based on the identity information included in the configuration information of the RRC message, instead of the physical cell identity determined based on the synchronization signals. - View Dependent Claims (2, 3, 7)
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4. A wireless apparatus configured for receiving a downlink control channel 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; instruct the transceiver to receive synchronization signals on a cell; determine a physical cell identity of the cell based on the synchronization signals; perform a blind decoding in a first search space on the cell to find a first Physical Downlink Control Channel (PDCCH); instruct the transceiver to receive a Radio Resource Control (RRC) message including configuration information on the cell, the configuration information including information on a second search space for monitoring a second PDCCH and identity information, wherein the information on the second search space includes information on a size of the second search space and information on a location of the second search space; and perform a blind decoding in the second search space on the cell to find the second PDCCH using the configuration information, wherein the first PDCCH is demodulated based on the physical cell identity, and wherein the second PDCCH is demodulated based on the identity information included in configuration information of the RRC message, instead of the physical cell identity determined based on the synchronization signals. - View Dependent Claims (5, 6, 8)
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Specification