ANTENNA PORT MAPPING METHOD AND DEVICE FOR DEMODULATION REFERENCE SIGNALS
摘要
An antenna port mapping method and device for demodulation reference signals. The method includes: determining a transmission rank for a downlink transmission to a user terminal; determining one or more reference signal antenna ports for the downlink transmission based on the transmission rank, wherein each port is defined by an group/code pair comprising a code division multiplexing group and orthogonal cover code; mapping reference signal antenna ports to group/code pairs for each transmission rank such that the code division multiplexing group and code orthogonal cover code are the same for a given antenna port for every transmission rank; and transmitting the downlink reference symbols over the reference signal antenna ports corresponding to the transmission rank.
申请公布号
WO2011088589(A1)
申请公布日期
2011.07.28
申请号
WO2010CN00084
申请日期
2010.01.20
申请人
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL);HU, YANG;ASTELY, DAVID;HAMMARWALL, DAVID;JOENGREN, GEORGE;SONG, XINGHUA;WANG, JIANFENG