EP2807759A1

5G,4G,3G

Title

EVOLVED NODE B AND METHOD FOR COHERENT COORDINATED MULTIPOINT TRANSMISSION WITH PER CSI-RS FEEDBACK

Application Number:

EP20130741552

Publication Date:

03-12-2014

Current Assignee:

INTEL CORP

Family ID:

48870112

Application Date:

23-01-2013

Declaring Company:

APPLE INC , INTEL CORP

Publication Country:

US

Priority Date:

27-01-2012

View on Espacenet goto-link

Title

EVOLVED NODE B AND METHOD FOR COHERENT COORDINATED MULTIPOINT TRANSMISSION WITH PER CSI-RS FEEDBACK

Application Number:

EP20130741552

Family ID:

48870112

Publication Country:

US

Publication Date:

03-12-2014

Application Date:

23-01-2013

Priority Date:

27-01-2012

Current Assignee:

INTEL CORP

Declaring Company:

APPLE INC , INTEL CORP

View on Espacenet goto-link

Abstract  Abstract

Embodiments of an evolved Node B (eNB) and method for coherent coordinated multipoint transmission with per CSI-RS feedback are generally described herein. In some embodiments the eNB may configure a first cooperating point and a second cooperating point to jointly transmit a multi-node channel-state information (CSI) reference signal (RS) (CSI-RS) in predetermined resource elements of a resource block. The eNB may receive CSI reports as feedback from user equipment (UE). The CSI reports may include a precoding matrix indicator (PMI) indicating relative phase information between the first and second cooperating points based on the multi-node CSI-RS. The CSI reports for the multi-node CSI-RS may be restricted to a PMI of rank-1. The eNB may configure at least the first and second cooperating points for a coherent joint transmission to the UE based at least on the relative phase information. The coherent joint transmission may also be jointly beamformed based on single-node PMIs.

Embodiments of an evolved Node B (eNB) and method for coherent coordinated multipoint transmission with per CSI-RS feedback are generally described herein. In some embodiments the eNB may configure a first cooperating point and a second cooperating point to jointly transmit a multi-node channel-state information (CSI) reference signal (RS) (CSI-RS) in predetermined resource elements of a resource block. The eNB may receive CSI reports as feedback from user equipment (UE). The CSI reports may include a precoding matrix indicator (PMI) indicating relative phase information between the first and second cooperating points based on the multi-node CSI-RS. The CSI reports for the multi-node CSI-RS may be restricted to a PMI of rank-1. The eNB may configure at least the first and second cooperating points for a coherent joint transmission to the UE based at least on the relative phase information. The coherent joint transmission may also be jointly beamformed based on single-node PMIs.

Note:

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