Early measurement reporting with RRC resume request message and indication of request for early measurements in association with paging

Patent metadata

Field	Value
Publication number	US-12127027-B2
Application number	US-202017430088-A
Country	US
Kind code	B2
Filing date	Feb 3, 2020
Priority date	Feb 12, 2019
Publication date	Oct 22, 2024
Grant date	Oct 22, 2024

Abstract

Systems and methods related to early measurement reporting are disclosed. In some embodiments, a method performed by a wireless device in a cellular communications system comprises transmitting measurements with a first message to a network node. The first message is a request to resume a connection of the wireless device with a target cell, and the measurements are measurements performed by the wireless device while in a dormant state. Corresponding embodiments of a wireless device are also disclosed. Embodiments of a method of operation of a wireless device for reception of a request for early measurements in association with a paging message and corresponding embodiments of a wireless device are also disclosed. Embodiments of methods of operation of a network node and corresponding embodiments of a network node are also disclosed.

First claim

What is claimed is:

1. A method, performed by a wireless device for an early measurement request in association with a paging procedure, the method comprising:
receiving a message in a cell on which the wireless device is camping and while the wireless device is in a dormant state, the message comprising either: (a) a paging message or (b) a separate message that is multiplexed with the paging message;
detecting that the message contains an indication that the wireless device is to report available early measurements taken while the device is in the dormant state during a resume-like procedure performed during a state transition of the wireless device; and
reporting at least one early measurement in accordance with the indication.

2. The method of claim 1 further comprising:
determining that the at least one early measurement is available at the wireless device; and
wherein reporting the at least one early measurement comprises reporting the at least one early measurement upon determining that the at least one early measurement is available at the wireless device.

3. The method of claim 1 wherein the message comprises the paging message.

4. The method of claim 1 wherein the message comprises the separate message that is multiplexed with the paging message.

5. The method of claim 1 wherein the paging message comprises a Radio Resource Control, RRC, Paging message.

6. The method of claim 1 wherein the separate message that is multiplexed with the paging message comprises a UEInformationRequest message.

7. The method of claim 1 wherein detecting that the message contains the indication that the wireless device is to report the available early measurements comprises first decoding at least a portion of the message.

8. The method of claim 7 wherein decoding at least a portion of the message comprises decoding the portion of the message using security keys provided by a last cell in which the wireless device was in a CONNECTED state.

9. The method of claim 7 wherein decoding the at least a portion of the message comprises decoding the at least a portion of the message using security keys provided by the cell on which the wireless device is camping.

10. The method of claim 9 wherein the security keys are included in the received message.

11. A wireless device for a cellular communications system, the wireless device adapted to:
receive a message in a cell on which the wireless device is camping and while the wireless device is in a dormant state, the message comprising either: (a) a paging message or (b) a separate message that is multiplexed with the paging message;
detect that the message contains an indication that the wireless device is to report available early measurements taken while the device is in the dormant state during a resume-like procedure performed during a state transition of the wireless device; and
report at least one early measurement in accordance with the indication.

12. The wireless device of claim 11 wherein the wireless device comprises:
one or more transmitters;
one or more receivers; and
processing circuitry associated with the one or more transmitters and the one or more receivers, the processing circuitry configured to cause the wireless device to:
receive the message in the cell on which the wireless device is camping;
detect that the message contains the indication that the wireless device is to report the available early measurements during the resume-like procedure; and
report the at least one early measurement in accordance with the indication.

13. A method, performed by a network node, for an early measurement request in association with a paging procedure, the method comprising:
sending a message within a cell on which a wireless device, while the wireless device is in a dormant state, is camping, the message comprising either: (a) a paging message or (b) a separate message that is multiplexed with the paging message, the message containing an indication that the wireless device is to report available early measurements taken while the wireless device is in the dormant state during a resume-like procedure performed during a state transition of the wireless device; and
receiving, from the wireless device, at least one early measurement in response to the sent message.

14. The method of claim 13 wherein the message comprises the paging message.

15. The method of claim 13 wherein the message comprises the separate message that is multiplexed with the paging message.

16. The method of claim 15 wherein the separate message comprises a UEInformationRequest message.

17. The method of claim 13 wherein the paging message comprises a Radio Resource Control, RRC, Paging message.

18. The method of claim 13 wherein the message contains security keys to be used by the wireless device to decode at least a portion of the message.

19. A network node for a cellular communications system, the network node adapted to:
send a message within a cell on which a wireless device, while the wireless device is in a dormant state, is camping, the message comprising either: (a) a paging message or (b) a separate message that is multiplexed with the paging message, the message containing an indication that the wireless device is to report available early measurements taken while the wireless device is in the dormant state during a resume-like procedure performed during a state transition of the wireless device; and
receive, from the wireless device, at least one early measurement in response to the sent message.

20. The network node of claim 19 wherein the network node comprises processing circuitry configured to cause the network node to:
send the message within the cell on which the wireless device is camping; and
receive, from the wireless device, the at least one early measurement in response to the sent message.

Assignees

• Ericsson Telefon Ab L M

Inventors

• Da Silva Icaro Leonardo J
• Orsino Antonino
• Bergqvist Jens
• Yilmaz Osman Nuri Can
• Teyeb Oumer
• Rugeland Patrik

Classifications

• H04W68/005

  Transmission of information for alerting of incoming communication · CPC title

• H04W12/0431

  Key distribution or pre-distribution; Key agreement · CPC title

• H04W76/19

  Connection re-establishment · CPC title

• H04W76/27

  Transitions between radio resource control [RRC] states · CPC title

• H04W24/10 Primary

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