Enhanced physical downlink control channel scrambling and demodulation reference signal sequence generation

摘要

Methods, apparatuses, and systems are described to provide enhanced physical downlink control channel scrambling and demodulation reference signal sequence generation.

主权项

1. An apparatus to be employed in an enhance node B (eNB), the apparatus comprising:
scrambling circuitry to receive a bit sequence that includes downlink control information (DCI) to be transmitted on an enhanced physical downlink control channel (EPDCCH) and to scramble the bit sequence based on a cell identifier to provide a scrambled bit sequence; and modulating circuitry coupled with the scrambling circuitry to receive the scrambled bits and to modulate the scrambled bits, with a quadrature phase shift keying modulation scheme, to provide a block of complex-valued modulation symbols, wherein the cell identifier is a virtual cell identifier; the DCI is to be transmitted in a first EPDCCH set; the virtual cell identifier corresponds to the first EPDDCH set; and the scrambling circuitry is to scramble the DCI bits based on a scrambling initialization seed cint given by
cint=└ns/2┘*29+NIDePDCCH where ns is a slot number within a radio frame and NIDePDCCH is the virtual cell identifier.