US 10,313,912 B2 · Configuration of coordinated multipoint transmission hypotheses for channel state information reporting

Abstract

A system and method for providing an eNodeB with the flexibility to configure a Channel State Information (CSI) report to match a specific Coordinated Multipoint (CoMP) transmission hypothesis, which is a candidate for a downlink transmission to a User Equipment (UE) is disclosed. A UE receives, from the eNodeB, a configuration message that specifies a CSI report. The CSI report is specified by a particular interference hypothesis and a particular desired signal hypothesis corresponding to data transmission over at least one effective channel characterized by a specific reference signal. The UE estimates interference according to the interference hypothesis, and/or estimates at least one effective channel by performing measurements on the specific reference signal, and determines a CSI report based on the interference estimation and on the estimated effective channel. The UE also transmits the CSI report to the eNodeB.

Claims14

Dependent claims

A network node, comprising:

a transmitter configured to transmit a configuration message to a User Equipment (UE), the configuration message specifying at least one Channel State Information (CSI) report indicating an interference hypothesis and a desired signal hypothesis corresponding to a hypothetical data transmission over an effective channel that is characterized by a reference signal, where the interference hypothesis and the desired signal hypothesis are indicated, at least in part, by a Channel State Information- Interference Measurement (CSI-IM) configuration, and a Channel State Information- Reference Signal (CSI-RS) configuration, respectively, to configure the UE to:
estimate interference according to the specified interference hypothesis;
estimate properties of the effective channel;
and
determine the at least one CSI report based on the interference estimation and the estimated properties of the effective channel;
and
a receiver configured to receive, from the UE, the at least one CSI report.

4 more elements

A User Equipment (UE), comprising:

a communication interface configured to receive a configuration message from a network node, wherein the configuration message specifies at least one first Channel State Information (CSI) report specifying an interference hypothesis and a desired signal hypothesis corresponding to a hypothetical data transmission over an effective channel that is characterized by a reference signal, where the interference hypothesis and the desired signal hypothesis are specified, at least in part, by a Channel State Information-Interference Measurement (CSI-IM) configuration, and a Channel State Information-Reference Signal (CSI-RS) configuration, respectively;
a controller configured to estimate interference according to the specified interference hypothesis, estimate the properties of the effective channel, and determine at least one CSI report based on the interference estimation and the estimated properties of the effective channel;
and
a transmitter configured to transmit the at least one CSI report to the network node.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

15/940,851Filed 29 Mar 2018 · continuation

Priority

19 Mar 2012

Published

US 2018/0220321 A12 Aug 2018

Granted

4 Jun 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

H04W 24/10
Supervisory, monitoring or testing arrangements: scheduling measurement reports ; Arrangements for measurement reports
H04B 17/345
Measuring or estimating channel quality parameters: interference values
H04L 1/0026
Characterised by the signalling: transmission of channel quality indication
H04L 5/0032
Arrangements for allocating sub-channels of the transmission path: distributed allocation, i.e. involving a plurality of allocating devices, each…

Family

Application61/612,920Us provisional application · filed 19 Mar 2012

PCT/SE2013/050235Parent of this continuation · filed 13 Mar 2013

Application15/094,546Parent of this continuation · filed 8 Apr 2016

US 9,337,970 B2Parent of this continuation · filed 10 May 2016

US 2018/0220321 A1Pre-grant publication · published 2 Aug 2018

US 9,961,582 B2Parent of this continuation

Application13/877,799Parent of this continuation

US 2014/0112173 A1Published application

US 2016/0227430 A1Published application

US 10,313,912 B2This patent

From the US filing history. Foreign family members aren’t listed.

Configuration of coordinated multipoint transmission hypotheses for channel state information reporting

Life of this patent

Configuration of coordinated multipoint transmission hypotheses for channel state information reporting

Life of this patent

Abstract

Claims14