Handling of inactive/idle measurement configurations and inactive/idle measurements upon inter-RAT cell reselection

Patent metadata

Field	Value
Publication number	US-12543079-B2
Application number	US-202318487198-A
Country	US
Kind code	B2
Filing date	Oct 16, 2023
Priority date	Mar 28, 2019
Publication date	Feb 3, 2026
Grant date	Feb 3, 2026

Abstract

Systems and methods are disclosed herein that relate to handling of dormant state measurement configurations and associated measurements upon inter-Radio Access Technology (RAT) cell reselection. In some embodiments, a method performed by a wireless device comprises receiving one or more dormant state measurement configurations from a network node of a source RAT, performing measurements while in a dormant state in accordance with at least one of the one or more dormant state measurement configurations, and performing an inter-RAT cell reselection from the source RAT to a target RAT while in the dormant state. The method further comprises, upon performing the inter-RAT cell reselection, performing one or more actions to handle dormant state measurement configurations and/or measurements performed in accordance with dormant state measurement configurations. Corresponding embodiments of a wireless device are also disclosed.

First claim

What is claimed is:

1 . A method performed by a wireless device, the method comprising:
receiving a dormant state measurement configuration for a source Radio Access Technology, RAT, from a network node of the source RAT; performing measurements while in a first dormant state in accordance with the dormant state measurement configuration; performing an inter-RAT cell reselection from the source RAT to a target RAT while in the first dormant state; and upon performing the inter-RAT cell reselection from the source RAT to the target RAT while in the first dormant state, stopping a timer that limits an amount of time that the wireless device is to perform measurements in accordance with the dormant state measurement configuration for the source RAT; releasing the dormant state measurement configuration; and stopping performance of measurements made in accordance with the dormant state measurement configuration for the source RAT.

2 . The method of claim 1 wherein the dormant state measurement configuration received from the network node comprises a dormant state measurement configuration for measuring on cells, frequencies, and/or beams associated with the source RAT.

3 . The method of claim 2 wherein the dormant state measurement configuration received from the network node comprises a dormant state measurement configuration for measuring on cells, frequencies, and/or beams associated with the target RAT.

4 . The method of claim 1 further comprising reporting the measurements to a target RAT network node.

5 . A wireless device adapted to:
receive a dormant state measurement configuration for a source Radio Access Technology, RAT, from a network node of the source RAT; perform measurements while in a first dormant state in accordance with the dormant state measurement configuration; perform an inter-RAT cell reselection from the source RAT to a target RAT while in the first dormant state; and upon performing the inter-RAT cell reselection from the source RAT to the target RAT while in the first dormant state, stop a timer that limits an amount of time that the wireless device is to perform measurements in accordance with the dormant state measurement configuration for the source RAT; release the dormant state measurement configuration; and stop performance of measurements made in accordance with the dormant state measurement configuration for the source RAT.

6 . The wireless device of claim 5 wherein the dormant state measurement configuration received from the network node comprises a dormant state measurement configuration for measuring on cells, frequencies, and/or beams associated with the source RAT.

7 . The wireless device of claim 6 , wherein the dormant state measurement configuration received from the network node comprises a dormant state measurement configuration for measuring on cells, frequencies, and/or beams associated with the target RAT.

8 . The wireless device of claim 5 wherein the wireless device is further adapted to report the measurements to a target RAT network node.

Assignees

• Ericsson Telefon Ab L M

Inventors

• Da Silva Icaro L J
• Rugeland Patrik
• Teyeb Oumer
• Bergqvist Jens
• Ramachandra Pradeepa

Classifications

• H04W76/30

  Connection release · CPC title

• H04W36/0058 Primary

  Transmission of hand-off measurement information, e.g. measurement reports · CPC title

• Y02D30/70

  in wireless communication networks · CPC title

• H04W48/18

  Selecting a network or a communication service · CPC title

• H04W24/10

  Scheduling measurement reports {; Arrangements for measurement reports} · CPC title