US 11,310,013 B2 · CSI-RS design with dynamic subframe structure

Abstract

Methods, systems, and devices for wireless communication are described. A base station and user equipment (UE) may use subframe configurations that include dynamically scheduled channel state information reference signal (CSI-RS) symbols. For example, a base station may identify a subframe configuration that includes one or more sets of CSI-RS symbols of a subframe. The base station may indicate to a UE whether sets of CSI-RS symbols may be enabled or disabled during the subframe. The UE may receive multiple CSI-RSs at different locations within the subframe as indicated by the base station, and transmit CSI feedback to the base station based on at least one of the received CSI-RSs. In some examples, multiple base stations may coordinate the use of subframe configurations that include CSI-RS symbols that may be enabled or disabled.

Claims30

Dependent claims

A method for wireless communication, comprising:

receiving an indication of a subframe configuration;
canceling reception associated with at least one set of channel state information reference signal (CSI-RS) resources from a plurality of sets of CSI-RS resources based at least in part on the subframe configuration defining a symbol as an uplink symbol;
and
receiving one or more CSI-RSs at corresponding locations in a subframe in accordance with the indication.

1 more element

An apparatus for wireless communications, comprising:

a processor of a user equipment (UE);
a transceiver coupled with the processor;
and
memory coupled with the processor, the memory and
the processor configured to cause the apparatus to:
receive an indication of a subframe configuration;
cancel reception associated with at least one set that one or more sets of channel state information reference signal (CSI-RS) resources from a plurality of sets of CSI-RS resources based at least in part on the subframe configuration defining a symbol as an uplink symbol;
and
receive one or more CSI-RSs at corresponding locations in a subframe in accordance with the indication.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/672,411Filed 1 Nov 2019 · continuation

Priority

18 May 2016

Published

US 2020/0067672 A127 Feb 2020

Granted

19 Apr 2022

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 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
H04L 5/0053
Arrangements for allocating sub-channels of the transmission path: allocation of signalling, i.e. of overhead other than pilot signals
H04L 5/0094
Signalling for the administration of the divided path, e.g. signalling of configuration information: indication of how sub-channels of the path…
H04W 72/0446
Based on the type of the allocated resource: resources in time domain, e.g. slots or frames

Family

Application62/338,500Us provisional application · filed 18 May 2016

Application15/372,916Parent of this continuation · filed 8 Dec 2016

US 2020/0067672 A1Pre-grant publication · published 27 Feb 2020

US 10,511,421 B2Parent of this continuation

US 2017/0338924 A1Published application

US 11,310,013 B2This patent

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

CSI-RS design with dynamic subframe structure

Life of this patent

CSI-RS design with dynamic subframe structure

Life of this patent

Abstract

Claims30