CN102474493B

5G,4G

Title

Method and device for transmitting downlink reference signal in wireless communication system supporting multiple antennas

Application Number:

CN2010836108

Publication Date:

14-01-2015

Current Assignee:

LG

Family ID:

Application Date:

13-08-2010

Declaring Company:

LG

Publication Country:

US

Priority Date:

14-08-2009

Title

Method and device for transmitting downlink reference signal in wireless communication system supporting multiple antennas

Application Number:

CN2010836108

Family ID:

Publication Country:

US

Publication Date:

14-01-2015

Application Date:

13-08-2010

Priority Date:

14-08-2009

Current Assignee:

LG

Declaring Company:

LG

Abstract  Abstract

in the context of a wireless communication system and claims a supporting method and device for wireless communication system in multi-antenna transmission downlink reference signal. In one embodiment of the invention wherein the base station transmits channel state information for up to 8 antenna ports-method of the reference signal comprises the following steps: according to the predetermined pattern. to be used for channel state information of up to 8 antenna port-the reference signal is mapped to has an extended cyclic prefix (CP) structure of the down-link sub-data area and transmitting the downlink subframe for channel state information of up to 8 antenna port-the reference signal has been mapped to and in a predetermined pattern. to be used for channel state information of up to 8 antenna port-the reference signal is mapped to 2 symbols on the subframe data area for mapping to the downlink defining at least one 4 on the sub-carrier position of each OFDM symbol of the 2 OFDM symbols in the middle of and 4 subcarrier locations defined in the predetermined pattern can be 3 subcarrier interval is set.

In the context of wireless communication systems disclosed are a method and device for transmitting a downlink reference signal in a wireless communication system supporting multiple antennas. In one embodiment of the present invention a method in which a base station transmits a channel-state-information reference signal for up to 8 antenna ports comprises the steps of 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 is 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.

In the context of wireless communication systems disclosed are a method and device for transmitting a downlink reference signal in a wireless communication system supporting multiple antennas. In one embodiment of the present invention a method in which a base station transmits a channel-state-information reference signal for up to 8 antenna ports comprises the steps of 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 is 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.