Physical uplink control channel (PUCCH) resource mapping using an enhanced physical downlink control channel (ePDCCH)

摘要

Technology for physical uplink control channel (PUCCH) resource mapping corresponding to an enhanced physical downlink control channel (ePDCCH) is disclosed. One method can include a node mapping a PUCCH resource nPUCCH(1) corresponding to an ePDCCH for PUCCH resource hybrid automatic repeat request-acknowledgement (HARQ-ACK) feedback. The PUCCH resource nPUCCH(1) can be determined using a lowest PRB index including at least one enhanced control channel element (eCCE) of ePDCCH resources and a total number of eCCE in one physical resource block (PRB).

主权项

1. A method for physical uplink control channel (PUCCH) resource mapping corresponding to an enhanced physical downlink control channel (ePDCCH) from a node, comprising:
mapping a PUCCH resource nPUCCH(1) corresponding to an ePDCCH for PUCCH resource hybrid automatic repeat request-acknowledgement (HARQ-ACK) feedback, wherein the PUCCH resource nPUCCH(1) is determined using a lowest PRB index including at least one enhanced control channel element (eCCE) of ePDCCH resources and a total number of eCCE in one physical resource block (PRB), wherein the PUCCH resource nPUCCH(1) is represented by nPUCCH(1)=E·(IPRB—ePDCCHlowest—index−NPRB,ePDCCHoffset)+neCCE+NePUCCH(1) for frequency-division duplexing (FDD), where E is the total number of eCCE in one PRB, IPRB—ePDCCHlowest—index is a lowest PRB index including at least one eCCE of ePDCCH resources, NPRB,ePDCCHoffset is a starting PRB index for an ePDCCH region, neCCE is a first eCCE index number in a lowest PRB used for transmission of the corresponding ePDCCH in a downlink subframe 0≦neCCE