METHOD, APPARATUS, AND COMPUTER PROGRAMME FOR TRANSMITTING COMMON AND DEMODULATION PILOT SIGNALS IN MULTI-ANTENNA WIRELESS COMMUNICATIONS,申请号EP20130708929-传众专利搜索

METHOD, APPARATUS, AND COMPUTER PROGRAMME FOR TRANSMITTING COMMON AND DEMODULATION PILOT SIGNALS IN MULTI-ANTENNA WIRELESS COMMUNICATIONS

申请公布号：EP2742641(B1)

申请号：EP20130708929

申请日期：2013.01.24

申请公布日期：2016.01.20

申请人：

TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

发明人：NAMMI, SAIRAMESH;CHAPMAN, THOMAS;GÖRANSSON, BO

分类号：H04B7/08;H04B7/04;H04B7/06;H04L5/00;H04L25/02

主分类号：H04B7/08

摘要：<p>Multiple antennas employed at transmitting and receiving nodes can significantly increase a MIMO system capacity, especially when channel knowledge of link(s) between the transmitting and receiving nodes is available at the transmitting node. Channel knowledge may be acquired through feedback provided by the receiving node based on a plurality of common pilots transmitted by the transmitting node. The common pilots may include legacy and non-legacy pilots. If the feedback indicates that data demodulation at the receiving node can be enhanced, the transmitting node may also transmit demodulation pilot signal(s), which may coincide with the transmission of data. The receiving node can use the demodulation pilot signal(s), alone or with the common pilot signal(s), to demodulate data received from the transmitting node. The transmitting node may notify the receiving node to monitor for the demodulation pilot signal(s) through higher layer signaling and/or scheduling orders over a control channel.</p>