Downlink control information (DCI) validation for enhanced physical downlink control channel (ePDCCH)

At least one non-transitory machine readable storage medium, for downlink (DL) grant validation, comprising a plurality of instructions that, when executed, cause a system to:

• receive from a node a downlink grant that is semi-persistent scheduling (SPS) activate downlink grant masked with a cell radio network temporary identifier (C-RNTI) for a resource allocation (RA) including an enhanced physical downlink control channel (ePDCCH) physical resource block (PRB) carrying the downlink grant in a subframe;
• validate a downlink control information (DCI) format of the downlink grant;
• treat the ePDCCH PRBs as PDSCH PRBs upon receipt of the SPS activate downlink grant in the subframe containing the ePDCCH PRBs;
• perform a physical downlink shared channel (PDSCH) rate matching to the ePDDCH PRBs containing the SPS activate downlink grant;
• and determine that the downlink grant is received with a non-matching cyclic redundancy check (CRC) when the DCI format is not validated.

At least one non-transitory machine readable storage medium comprising a plurality of instructions adapted to be executed to implement a method to receive a physical downlink shared channel (PDSCH) physical resource block (PRB) resource allocation (RA), comprising:

• receiving from a node a PDSCH PRB resource allocation, wherein an enhanced physical downlink control channel (ePDCCH) is in a resource block group (RBG) or contiguous PRBs associated with the PDSCH PRB resource allocation;
• treating the ePDCCH PRBs as PDSCH PRBs upon receiving the SPS activate downlink grant in a subframe containing the ePDCCH PRBs;
• performing a physical downlink shared channel (PDSCH) rate matching to the ePDDCH PRBs containing the SPS activate downlink grant;
• and excluding the at least one ePDCCH PRB from the PDSCH PRB resource allocation so the at least one ePDCCH PRB is not part of the PDSCH PRB resource allocation.

A method for uplink (UL) grant validation, comprising:

• receiving, from a node at a wireless device, a semi-persistent scheduling (SPS) activation downlink control information (DCI), wherein cyclic redundancy check (CRC) bits for an enhanced physical downlink control channel (ePDCCH) is masked with a SPS cell radio network temporary identifier (C-RNTI);
• receiving from the node a physical downlink shared channel (PDSCH) without a corresponding enhanced physical downlink control channel (ePDCCH) in a subframe;
• validating an uplink grant in a physical resource block (PRB) for the PDSCH without the corresponding ePDCCH;
• treating the ePDCCH PRBs as PDSCH PRBs upon receiving the SPS activate downlink grant in the subframe containing the ePDCCH PRBs;
• and performing a physical downlink shared channel (PDSCH) rate matching to the ePDDCH PRBs containing the SPS activate downlink grant.

At least one non-transitory machine readable storage medium, for uplink (UL) grant validation, comprising a plurality of instructions that, when executed, cause a system to:

• receive, from a node at a wireless device, a semi-persistent scheduling (SPS) activation downlink control information (DCI), wherein cyclic redundancy check (CRC) bits for an enhanced physical downlink control channel (ePDCCH) is masked with a SPS cell radio network temporary identifier (C-RNTI);
• receive, from the node, a physical downlink shared channel (PDSCH) without a corresponding enhanced physical downlink control channel (ePDCCH) in a subframe;
• validate an uplink grant in a physical resource block (PRB) for the PDSCH without the corresponding ePDCCH;
• treat the ePDCCH PRBs as PDSCH PRBs upon receipt of the SPS activate downlink grant in the subframe containing the ePDCCH PRBs;
• and perform a physical downlink shared channel (PDSCH) rate matching to the ePDDCH PRBs containing the SPS activate downlink grant.