Patent ID: 8842622
Filing Date: 2014-09-23
Classification: H04B,H04L,H04W

Abstract:
1. A method implementable in a wireless transmit/receive unit (WTRU) in communication with a plurality of transmission (Tx) points, comprising: receiving radio resource control (RRC) signaling including first and second parameters of a demodulation reference signals (DM-RS) configuration associated with the plurality of Tx points; receiving, on a downlink control channel associated with a forthcoming coordinated downlink transmission to the WTRU, downlink control information including an indication of an antenna port index, scrambling identity and number of layers; determining the scrambling identity based on the indication and on whether a single codeword of a plurality of codewords is enabled or multiple codewords of the plurality of codewords are enabled; on condition that the scrambling identity is determined to be a first value: on condition that the scrambling identity is determined to be a second value: