Method and apparatus for allocating control channel in wireless communication system
AssigneeLG Electronics Inc.
InventorsJin Young Chun, Bin Chul Ihm, Ji Won Kang, Ki Tae Kim, Sung Ho Park, Su Nam Kim
Life of this patent
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Abstract
Provided are a method and an apparatus for allocating a control channel in a wireless communication system. A base station allocates an enhanced physical downlink control channel (e-PDCCH) to a localized region within a physical downlink shared channel (PDSCH) region, allocates the e-PDCCH to a distributed region within the PDSCH region, and transmits a scheduling assignment via the allocated e-PDCCH.
Claims12
A method for allocating, by a base station (BS), a control channel in a wireless communication system, the method comprising:
- allocating an enhanced physical downlink control channel (e-PDCCH) to a localized region which is contiguously configured in a frequency domain or a distributed region which is dispersedly configured in the frequency domain;
- and
- transmitting a scheduling assignment through the allocated e-PDCCH,
- wherein the e-PDCCH is allocated only to the distributed region when an e-PDCCH format with a highest aggregation level, among a plurality of predetermined aggregation levels, is configured, and
- wherein the e-PDCCH format with the highest aggregation level corresponds to an e-PDCCH format 4.
A base station (BS) in a wireless communication system, the BS comprising:
- a memory;
- a radio frequency (RF) unit;
- and
- a processor coupled to the memory, and the RF unit,
- wherein the processor is configured to:
- allocate an enhanced physical downlink control channel (e-PDCCH) to a localized region which is contiguously configured in a frequency domain or a distributed region which is dispersedly configured in the frequency domain,
- control the RF unit to transmit a scheduling assignment through the allocated e-PDCCH,
- wherein the e-PDCCH is allocated only to the distributed region when an e-PDCCH format with a highest aggregation level, among a plurality of predetermined aggregation levels, is configured, and
- wherein the e-PDCCH format with the highest aggregation level corresponds to an e-PDCCH format 4.
A method for receiving, by a user equipment (UE), a scheduling assignment in a wireless communication system, the method comprising:
- receiving an enhanced physical downlink control channel (e-PDCCH) to a localized region which is contiguously configured in a frequency domain or a distributed region which is dispersedly configured in the frequency domain;
- and
- receiving a scheduling assignment through the allocated e-PDCCH,
- wherein the e-PDCCH is allocated only to the distributed region when an e-PDCCH format with a highest aggregation level, among a plurality of predetermined aggregation levels, is configured, and
- wherein the e-PDCCH format with the highest aggregation level corresponds to an e-PDCCH format 4.
Dependencies are inferred from the claim text.