US 12,192,929 B2 · Method for reference signal time synchronization and calibration

Abstract

This disclosure describes methods and systems for configuring, requesting, performing, and reporting timing measurements of reference signals in a wireless network for purposes of time synchronization between various reference signal transmission-reception points of the wireless network. The reference signal timing measurements may be used to derive time offsets for performing time synchronization and calibration of the transmission-reception points that help improve geographical positioning of wireless devices in the wireless network.

Claims20

Dependent claims

A method performed by a network node for reference signal synchronization in a wireless network, comprising:

sending reference signal configuration information to a first transmission reception point (TRP 1) and a second transmission reception point (TRP 2) of the wireless network;
sending measurement requests to trigger the TRP 1 and/or the TRP 2 to perform timing measurements of reference signals communicated between the TRP 1 and the TRP 2 according to the reference signal configuration information;
receiving, from the TRP 1 and/or the TRP 2, measurement reports of the timing measurements;
and
generating time offset information for synchronizing between the TRP 1 and the TRP 2.

2 more elements

A method performed by a network node for reference signal synchronization in a wireless network, comprising:

sending reference signal configuration information to a first transmission reception point (TRP 1), a second transmission reception point (TRP 2), and a third transmission reception point (TRP 3) of the wireless network;
sending measurement requests to trigger the TRP 1, the TRP 2, and/or the TRP 3 to perform timing measurements of reference signals communicated between the TRP 1, and the TRP 2 and the TRP 3 according to the reference signal configuration information;
receiving, from the TRP 1, TRP 2, and/or the TRP 3, measurement reports of the timing measurements;
and
generating time offset information for synchronizing the TRP 1, the TRP 2, and the TRP 3.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/858,317Filed 6 Jul 2022 · continuation

Priority

7 Aug 2020

Published

US 2022/0353832 A13 Nov 2022

Granted

7 Jan 2025

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

H04W 56/001
Synchronisation arrangements: synchronization between nodes
H04W 56/0015
Synchronization between nodes: one node acting as a reference for the others
H04L 5/0048
Arrangements for allocating sub-channels of the transmission path: allocation of pilot signals, i.e. of signals known to the receiver
H04W 56/004
Synchronisation arrangements: compensating for timing error of reception due to propagation delay

Method for reference signal time synchronization and calibration

Life of this patent

Method for reference signal time synchronization and calibration

Life of this patent

Abstract

Claims20