US 11,641,258 B2 · Method and apparatus for low-overhead and low latency multi-beam operation

Abstract

Systems, devices, and methods for low-overhead and low latency multi-beam operation in an advanced wireless communication system. A method of a user equipment (UE) for a multi-beam operation in a wireless communication system includes: receiving, from a base station (BS), a sounding reference signal (SRS) resource configuration; receiving, from the BS, a triggering message instructing the UE to transmit an SRS; receiving, from the BS, a configuration for a transmission configuration indicator (TCI) state that includes an identification (ID) indicating the SRS resource configuration; identifying a set of resources to transmit the SRS; and transmitting, to the BS over an uplink channel, the SRS based on the SRS resource configuration with a spatial domain transmission filter. The UE receives a downlink transmission from the BS with a spatial domain receive filter that is determined according to the ID included in the TCI state that is indicated for the downlink transmission.

Claims20

Dependent claims

A method comprising:

receiving:
a sounding reference signal (SRS) resource configuration,
an indication for transmission of an SRS, and
an indication for a transmission configuration indicator (TCI) state, wherein the TCI state includes:
an identification (ID) indicating the SRS resource configuration, and
quasi co-location-Type D (QCL-Type D) properties for the ID;
determining a set of resources for the SRS transmission;
and
transmitting the SRS based on the SRS resource configuration using a first spatial domain filter.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/301,451Filed 2 Apr 2021 · continuation

Priority

1 Aug 2018

Published

US 2021/0226745 A122 Jul 2021

Granted

2 May 2023

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

H04L 5/005
Allocation of pilot signals, i.e. of signals known to the receiver: of common pilots, i.e. pilots destined for multiple users or terminals
H04B 7/0408
Using two or more spaced independent antennas: using two or more beams, i.e. beam diversity
H04B 7/06968
Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping: using quasi-colocation [QCL] between 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…

Family

Application62/713,091Us provisional application · filed 1 Aug 2018

Application62/715,925Us provisional application · filed 8 Aug 2018

Application62/717,417Us provisional application · filed 10 Aug 2018

Application62/723,838Us provisional application · filed 28 Aug 2018

Application62/723,861Us provisional application · filed 28 Aug 2018

Application62/750,622Us provisional application · filed 25 Oct 2018

Application16/523,857Parent of this continuation · filed 26 Jul 2019

US 2021/0226745 A1Pre-grant publication · published 22 Jul 2021

US 10,972,244 B2Parent of this continuation

US 2020/0044797 A1Published application

US 11,641,258 B2This patent

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

Method and apparatus for low-overhead and low latency multi-beam operation

Life of this patent

Method and apparatus for low-overhead and low latency multi-beam operation

Life of this patent

Abstract

Claims20