Filtering relevant early measurement results

Patent metadata

Field	Value
Publication number	US-12250582-B2
Application number	US-202017784663-A
Country	US
Kind code	B2
Filing date	Dec 18, 2020
Priority date	Dec 23, 2019
Publication date	Mar 11, 2025
Grant date	Mar 11, 2025

Abstract

Methods performed by wireless device for filtering relevant early measurement results are provided. Operations of such methods include obtaining multiple idle/inactive measurement results while the wireless device is in an idle/inactive state and transitioning from the idle/inactive state to an active state. Operations may include, responsive to transitioning from the idle/inactive state to the active state, selecting a subset of the idle/inactive measurement results based on capabilities of frequencies associated with idle/inactive measurement results to be used by the wireless device. Operations may further include transmitting the subset of the idle/inactive measurement results to a network node in a wireless communication network.

First claim

What is claimed is:

1. A method performed by a wireless device the method comprising:
obtaining a plurality of idle/inactive measurement results while the wireless device is in an idle/inactive state;
selecting a subset of the plurality of idle/inactive measurement results based on the wireless device capabilities at frequencies associated with idle/inactive measurement results to be used by the wireless device;
transmitting the subset of the plurality of idle/inactive measurement results to a network node in a wireless communication network in a radio resource control (RRC) resume request message; and
transitioning from the idle/inactive state to an active state.

2. The method of claim 1 , wherein the network node is a second network node and the wireless device is connected to the wireless communication network via a first network node in the wireless communication network, the method further comprising:
receiving a message from the first network node instructing the wireless device to transition to the idle/inactive state;
receiving idle/inactive state measurement configurations; and
transitioning to the idle/inactive state,
wherein obtaining the plurality of measurement results comprises, responsive to transitioning to the idle/inactive state, performing idle/inactive state measurements.

3. The method of claim 2 , wherein the idle/inactive state measurement configurations comprise:
a list of intra-radio access technology, RAT, frequencies and/or inter-RAT frequencies; and
instructions for when to measure a signal transmitted on the intra-RAT frequencies and/or inter-RAT frequencies,
wherein performing idle/inactive state measurements comprises generating the plurality of measurement results by measuring the signal transmitted on the intra-RAT frequencies and/or inter-RAT frequencies based on the instructions.

4. The method of claim 3 , wherein the idle/inactive state measurement configurations further comprise:
instructions for how to measure a signal transmitted on the intra-RAT frequencies and/or inter-RAT frequencies.

5. The method of claim 2 , wherein the message comprises a first message comprising a radio resource control, RRC, release, the method further comprising:
transmitting a second message to the second network node of the wireless communication network, the second message comprising the RRC resume request requesting transition to the active state;
responsive to transmitting the second message, receiving a third message from the second network node, the third message comprising a RRC setup message; and
transmitting a fourth message to the second network node, the fourth message comprising a RRC setup complete message,
wherein transitioning from the idle/inactive state to the active state comprises, responsive to receiving the third message, transitioning to a RRC connected state.

6. The method of any of claim 2 , wherein the message comprises a first message comprising a radio resource control, RRC, release, the method further comprising:
transmitting a second message to the second network node of the wireless communication network, the second message comprising the RRC resume request requesting transition to the active state;
responsive to transmitting the second message, receiving a third message from the second network node, the third message comprising a RRC resume message; and
responsive to receiving the third message, transmitting a fourth message to the second network node, the fourth message comprising a RRC resume complete message,
wherein transitioning from the idle/inactive state to the active state comprises, responsive to receiving the third message, transitioning to a RRC connected state.

7. The method of claim 1 , further comprising receiving a request to report idle/inactive measurement results,
wherein transmitting the subset of the plurality of measurement results is in response to receiving the request.

8. The method of any of claim 1 , wherein determining the subset of the plurality of idle/inactive measurement results comprises determining whether to include first measurement results associated with a first frequency in the subset based on whether the wireless device supports carrier aggregation and/or dual connectivity using a serving frequency and the first frequency.

9. The method of claim 8 , wherein determining whether to include the first measurement results associated with the first frequency in the subset comprises determining whether the wireless device supports carrier aggregation between the first frequency and any other frequency for which the wireless device can support dual connectivity with the serving frequency.

10. The method of claim 8 ,
wherein determining whether to include the first measurement results associated with the first frequency in the subset comprises including the first measurement results associated with the first frequency if the plurality of idle/inactive measurement reports includes measurement results in the report for a second frequency, and
wherein the wireless device is capable of dual connectivity between the serving frequency and the second frequency and the wireless device is capable of carrier aggregation between the first frequency and the second frequency.

11. The method of claim 1 , further comprising receiving subset configuration instructions from the network node in the wireless communication network, the subset configuration instructions indicating how to determine the idle/inactive measurement reports to include in the subset.

12. The method of claim 1 , further comprising receiving subset timing instructions from the network node in the wireless communication network, the subset timing instructions indicating when to determine and transmit the subset.

13. The method of claim 1 , further comprising receiving an indication of a request to report early measurements earlier than transmitting the RRC resume request message.

14. The method of claim 1 , wherein determining the subset of the plurality of idle/inactive measurement results is based on historical data of frequencies the wireless device has been configured to operate in carrier aggregation or dual connectivity with a serving frequency.

15. The method of claim 14 , wherein determining the subset of the plurality of idle/inactive measurement results based on historical data of frequencies the wireless device has been configured to operate in carrier aggregation or dual connectivity with a serving frequency implemented by machine learning.

16. A wireless device operating in a wireless communication network, the wireless device comprising:
processing circuitry; and
memory coupled to the processing circuitry having instructions stored therein that are executable by the processing circuitry to cause the wireless device to:
obtain a plurality of idle/inactive measurement results while the wireless device is in an idle/inactive state;
determine a subset of the plurality of idle/inactive measurement results based on the wireless device capabilities at frequencies associated with idle/inactive measurement results to be used by the wireless device;
transmit the subset of the plurality of idle/inactive measurement results to a network node in a wireless communication network in a radio resource control (RRC) resume request message; and
transition from the idle/inactive state to an active state.

17. The wireless device of claim 16 , wherein the instructions are further executable to cause the wireless device to:
wherein the network node is a second network node and the wireless device is connected to the wir

Assignees

• Ericsson Telefon Ab L M

Inventors

• Teyeb Oumer
• Rugeland Patrik
• Bergqvist Jens

Classifications

• H04W76/30

  Connection release · CPC title

• H04W76/15

  Setup of multiple wireless link connections · CPC title

• H04W76/20

  Manipulation of established connections · CPC title

• H04W76/19

  Connection re-establishment · CPC title

• Y02D30/70

  in wireless communication networks · CPC title