US 2026/0101351 A1 · METHODS, ARCHITECTURES, APPARATUSES AND SYSTEMS FOR PRECODER TYPE REPORTING

Abstract

For a wireless transmit-receive unit (WTRU) moving between near field and far field (NF/FF) regions of a cell, the planar wave approximation used in the FF region may not be adapted to the NF region. Therefore, the WTRU may determine a transmission precoder type of a set of transmission precoder types, and at least one downlink (DL) reference signal (RS). The WTRU may perform one or more measurements based on the DL RS. The WTRU may determine a transmission precoder type from the set of transmission precoder types based on the one or more measurements meeting the associated conditions. The WTRU may transmit a report to the network, the report comprising an indication of the determined transmission precoder type, to be used by the network for DL transmissions to the WTRU, for improved reception of these transmissions by the WTRU in the region where the WTRU is located.

Claims18

Dependent claims

A method, implemented by a wireless transmit-receive unit (WTRU) in a network, comprising:

receiving configuration information comprising a set of precoder types and one or more associated conditions for determining a precoder type from the set of precoder types, and receiving one or more downlink reference signal (DL RS);
performing one or more measurements based on the one or more DL RS;
determining a precoder type from the set of precoder types based on the one or more measurements satisfying one or more of the one or more associated conditions;
and
transmitting a report to the network, the report comprising an indication of the determined precoder type.

2 more elements

A wireless transmit-receive unit (WTRU) in a network, comprising at least one processor and configured to:

receive configuration information comprising a set of precoder types and one or more associated conditions for determining a precoder type from the set of precoder types, and receive one or more downlink reference signal (DL RS);
perform one or more measurements based on the one or more DL RS;
determine a precoder type from the set of precoder types based on the one or more measurements satisfying one or more of the one or more associated conditions;
and
transmit a report to the network, the report comprising an indication of the determined precoder type.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

18/906,615Filed 4 Oct 2024

Published

9 Apr 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

H04B 7/0456
MIMO systems: selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
H04W 72/23
Control channels or signalling for resource management: in the downlink direction of a wireless link, i.e. towards a terminal
H04B 7/0639
Feedback format: using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
H04L 5/0048
Arrangements for allocating sub-channels of the transmission path: allocation of pilot signals, i.e. of signals known to the receiver

Methods, architectures, apparatuses and systems for precoder type reporting

Life of this patent

Methods, architectures, apparatuses and systems for precoder type reporting

Life of this patent

Abstract

Claims18