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
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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.
Claims15
A method for allocating a control channel in a wireless communication system, the method comprising:
- allocating an enhanced physical downlink control channel (e-PDCCH);
- and
- transmitting a scheduling assignment through the allocated e-PDCCH,
- wherein the allocating the e-PDCCH comprises:
- when an enhanced control channel element (CCE) aggregation level of a corresponding e-PDCCH format is below a predetermined value, allocating the 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
- when the e-CCE aggregation level is not below the predetermined value, allocating the e-PDCCH to only to the distributed region.
A base station for allocating a control channel in a wireless communication system, the base station comprising:
- a radio frequency (RF) unit for transmitting or receiving a radio signal;
- and
- a processor connected to the RF unit, and configured to:
- allocate an enhanced physical downlink control channel (e-PDCCH);
- and
- transmit a scheduling assignment through the allocated e-PDCCH,
- wherein the processor is configured to allocate the e-PDCCH by an allocation process that comprises:
- when an enhanced control channel element (CCE) aggregation level of a corresponding e-PDCCH format is below a predetermined value, allocating the 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
- when the e-CCE aggregation level is not below the predetermined value, allocating the e-PDCCH to only to the distributed region.
Dependencies are inferred from the claim text.