WO2011019228A2

5G,4G

Title

Method and apparatus for transmitting downlink reference signal in wireless communication system that supports multiple antennas

Application Number:

WO2010KR05319

Publication Date:

17-02-2011

Family ID:

Application Date:

13-08-2010

Declaring Company:

LG

Publication Country:

US

Priority Date:

14-08-2009

Title

Method and apparatus for transmitting downlink reference signal in wireless communication system that supports multiple antennas

Application Number:

WO2010KR05319

Family ID:

Publication Country:

US

Publication Date:

17-02-2011

Application Date:

13-08-2010

Priority Date:

14-08-2009

Declaring Company:

LG

Abstract  Abstract

The present invention relates to a wireless communication system and in particular to a method and an apparatus for transmitting a downlink reference signal in a wireless communication system that supports multiple antennas. The method for transmitting a channel status information reference signal for a maximum of eight antenna ports according to one embodiment of the present invention comprises: in a base station mapping the channel status information reference signal for a maximum of eight antenna ports onto a data region of a downlink subframe having a general cyclic prefix (CP) configuration according to a preset pattern; and in the base station transmitting the downlink subframe into which the channel status reference signal for the maximum of eight antenna ports has been mapped wherein the preset pattern defines the channel status information reference signal for the maximum of eight antenna ports to be mapped onto two OFDM symbols of the data region in the downlink subframe and then mapped to at least one of four subcarrier positions in each of the two OFDM symbols and wherein the four subcarrier positions defined by the preset pattern may be two consecutive subcarrier positions and two other consecutive subcarrier positions spaced apart by four subcarriers.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.