US8948121B2

5G,4G

Title

METHOD AND DEVICE FOR TRANSMITTING A DOWNLINK REFERENCE SIGNAL IN A WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE ANTENNAS

Application Number:

US201414165238

Publication Date:

03-02-2015

Current Assignee:

LG

Family ID:

Application Date:

27-01-2014

Publication Country:

US

Priority Date:

14-08-2009

Declaring Company:

LG

Abstract  Abstract

A method for a base station to transmit a channel-state-information reference signal for up to 8 antenna ports includes mapping in accordance with a predetermined pattern the channel-state-information reference signal for up to 8 antenna ports onto a data region of a downlink subframe having an extended cyclic prefix (CP) structure and transmitting the downlink subframe onto which the channel-state-information reference signal for up to 8 antenna ports has been mapped; and in the predetermined pattern the channel-state-information reference signal for up to 8 antenna ports in mapped onto 2 OFDM symbols on the data region of the downlink subframe with a definition for mapping onto at least one of 4 subcarrier wave positions in each of the 2 OFDM symbols and the 4 subcarrier wave positions defined in the predetermined pattern can be disposed at 3 subcarrier wave intervals.

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.