Method for transmitting or receiving PDCCH and user equipment or base station for the method
AssigneeLG Electronics Inc.
InventorsKijun Kim, Daewon Lee, Hanbyul Seo, Hakseong Kim
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Abstract
A method for receiving a physical downlink control channel (PDCCH) at a downlink subframe through a user equipment (UE) in a wireless communication system comprises the step of detecting the PDCCH by performing blind decoding for a search space including a plurality of PDCCH candidates included in the downlink subframe, wherein the blind decoding is performed in accordance with order of priority given to each of a plurality of sub-search spaces constituting the search space.
Claims12
A method for receiving an enhanced physical downlink control channel (E-PDCCH) in a data region of a downlink subframe by a user equipment (UE) in a wireless communication system, the method comprising the step of:
- detecting the E-PDCCH by performing blind decoding of a plurality of E-PDCCH candidates included in a search space for the E-PDCCH,
- wherein the blind decoding is performed in accordance with an order of priority given to each of a plurality of sub-search spaces constituting the search space, and
- wherein the order of priority is determined based on downlink transmission information including at least one of a transmission data rate of a physical downlink shared channel (PDSCH) indicated by the E-PDCCH, a payload size of the PDSCH, a transmission modulation order of the PDSCH, and the number of resource blocks allocated to the PDSCH.
A user equipment configured to receive an enhanced physical downlink control channel (E-PDCCH) in a data region of a downlink subframe in a wireless communication system, the user equipment comprising:
- a radio frequency (RF) unit;
- and
- a processor,
- wherein the processor is configured to detect the E-PDCCH by performing blind decoding of a plurality of E-PDCCH candidates included in a search space for the E-PDCCH, and the blind decoding is performed in accordance with an order of priority given to each of a plurality of sub-search spaces constituting the search space, and
- wherein the order of priority is determined based on downlink transmission information including at least one of a transmission data rate of a physical downlink shared channel (PDSCH) indicated by the E-PDCCH, a payload size of the PDSCH, a transmission modulation scheme of the PDSCH, and the number of resource blocks allocated to the PDSCH.
A method for transmitting an enhanced physical downlink control channel (E-PDCCH) in a data region of a downlink subframe from a base station to a user equipment (UE) in a wireless communication system, the method comprising the steps of:
- dividing a search space for the E-PDCCH including a plurality of E-PDCCH candidates into a plurality of sub-search spaces;
- giving an order of priority to each of the plurality of sub-search spaces;
- and
- transmitting the E-PDCCH to the user equipment through the sub-search spaces on the basis of the given order of priority,
- wherein the order of priority is determined based on downlink transmission information including at least one of a transmission data rate of a physical downlink shared channel (PDSCH) indicated by the E-PDCCH, a payload size of the PDSCH, a transmission modulation scheme of the PDSCH, and the number of resource blocks allocated to the PDSCH.
A base station configured to transmit an enhanced physical downlink control channel (E-PDCCH) to a user equipment in a data region of downlink subframe in a wireless communication system, the base station comprising:
- a processor,
- wherein the processor is configured to
- divide a search space for the E-PDCCH including a plurality of E-PDCCH candidates included in the downlink subframe into a plurality of sub-search spaces,
- give an order of priority to each of the plurality of sub-search spaces, and
- transmit the E-PDCCH to the user equipment through the sub-search spaces on the basis of the given order of priority, and
- wherein the order of priority is determined based on downlink transmission information including at least one of a transmission data rate of a physical downlink shared channel (PDSCH) indicated by the E-PDCCH, a payload size of the PDSCH, a transmission modulation scheme of the PDSCH, and the number of resource blocks allocated to the PDSCH.
Dependencies are inferred from the claim text.