Blind decoding for an enhanced physical downlink control channel (EPDCCH)
AssigneeIntel Corporation
InventorsXiaogang Chen, Seunghee Han, Yuan Zhu, Qinghua Li, Jong-Kae Fwu
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Abstract
Technology for a user equipment (UE) configured for blind decoding downlink control information (DCI) from an enhanced physical downlink control channel (EPDCCH) is disclosed. The UE can receive, from a base station, the EPDCCH that includes the DCI. The UE can attempt one or more times to decode the DCI from enhanced control channel elements (ECCE) of the EPDCCH from physical resource block (PRB) region candidates in a PRB set using a selected set of enhanced resource element group (EREG) index maps for the ECCE until the DCI is successfully decoded.
Claims26
An apparatus of a user equipment (UE) configured for blind decoding downlink control information (DCI) from an enhanced physical downlink control channel (EPDCCH), the apparatus comprising one or more processors and memory configured to:
- receive, from a base station, the EPDCCH that includes the DCI;
- and
- attempt one or more times to decode the DCI from enhanced control channel elements (ECCE) of the EPDCCH from physical resource block (PRB) region candidates in a PRB set using a selected set of enhanced resource element group (EREG) index maps for the ECCE until the DCI is successfully decoded.
An apparatus of a user equipment (UE) operable to perform blind decoding downlink control information (DCI) from an enhanced physical downlink control channel (EPDCCH), the apparatus comprising one or more processors and memory configured to:
- receive, at the UE from an evolved Node B (eNB), the EPDCCH along with a physical downlink shared channel (PDSCH) in a resource allocation (RA);
- and
- attempt, at the UE, one or more times to decode the DCI from enhanced control channel elements (ECCE) of the EPDCCH from a physical resource block (PRB) pair using a selected set of enhanced resource element group (EREG) index mappings for the ECCE until the DCI is successfully decoded.
At least one non-transitory machine readable storage medium having instructions embodied thereon for mapping, at a base station, resource elements (RE) to enhanced control channel elements (ECCE) of an enhanced physical downlink control channel (EPDCCH), the instructions when executed by one or more processors of the base station perform the following:
- determining a number of ECCE used to transmit downlink control information (DCI);
- and
- mapping resource elements (RE) to enhanced resource element groups (EREG) of the ECCE assigned to the DCI using an EREG index.
Dependencies are inferred from the claim text.