US 2020/0403750 A1 · METHOD AND APPARATUS FOR SIGNALING APERIODIC CHANNEL STATE INDICATION REFERENCE SIGNALS FOR LTE OPERATION

Abstract

First aperiodic zero power channel state information reference signal configuration information of a serving cell can be transmitted. Second aperiodic zero power channel state information reference signal configuration information of the serving cell can be transmitted. Downlink control information can be transmitted on a physical control channel in a subframe of the serving cell. The downlink control information can include an aperiodic zero power channel state information reference signal indicator bit field that indicates a selection of one of at least the first aperiodic zero power channel state information reference signal configuration, the second aperiodic zero power channel state information reference signal configuration, and no aperiodic zero power channel state information reference signal in the subframe.

Claims20

Dependent claims

A method in a base station, the method comprising:

transmitting first aperiodic zero power channel state information reference signal configuration information of a serving cell;
transmitting second aperiodic zero power channel state information reference signal configuration information of the serving cell;
and
transmitting downlink control information on a physical control channel in a subframe of the serving cell, where the downlink control information includes an aperiodic zero power channel state information reference signal indicator bit field that indicates a selection of one out of at least
the first aperiodic zero power channel state information reference signal configuration,
the second aperiodic zero power channel state information reference signal configuration, and
no aperiodic zero power channel state information reference signal in the subframe.

4 more elements

An apparatus comprising:

a controller that controls operations of the apparatus;
and
a transceiver that
transmits first aperiodic zero power channel state information reference signal configuration information of a serving cell,
transmits second aperiodic zero power channel state information reference signal configuration information of the serving cell, and
transmits downlink control information on a physical control channel in a subframe of the serving cell, where the downlink control information includes an aperiodic zero power channel state information reference signal indicator bit field that indicates a selection of one out of at least
the first aperiodic zero power channel state information reference signal configuration,
the second aperiodic zero power channel state information reference signal configuration, and
no aperiodic zero power channel state information reference signal in the subframe.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/013,871Filed 8 Sep 2020

Priority

30 Jan 2015

Published

24 Dec 2020

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

H04L 5/0048
Arrangements for allocating sub-channels of the transmission path: allocation of pilot signals, i.e. of signals known to the receiver
H04B 7/0626
Feedback content: channel coefficients, e.g. channel state information [CSI]
H04L 1/0039
Arrangements specific to the receiver: other detection of signalling, e.g. detection of TFCI explicit signalling
H04L 1/0067
Systems characterized by the type of code used: rate matching

Family

Application62/109,928Us provisional application · filed 30 Jan 2015

Application14/672,342Division · filed 30 Mar 2015

Application15/396,412Continuation · filed 30 Dec 2016

Application16/159,561Continuation · filed 12 Oct 2018

Application17/013,871Continuation

Application15/396,412Division

US 10,084,577 B2Related patent

US 10,142,072 B2Related patent

US 10,771,215 B2Related patent

US 11,398,888 B2Related patent

US 2016/0227548 A1Published application