Method and Arrangement in a Telecommunication System

Patent metadata

Field	Value
Publication number	US-2023217243-A1
Application number	US-202318121327-A
Country	US
Kind code	A1
Filing date	Mar 14, 2023
Priority date	Dec 6, 2007
Publication date	Jul 6, 2023
Grant date	—

Abstract

Handling of UE capability information in a mobile telecommunications network wherein an eNodeB receives information regarding the UE capability information from the UE and stores the information. The eNodeB sends the UE capability information to the EPC, i.e., to an MME, which receives and stores the UE capability information. When the UE transits from idle to active state, does an initial attach, or when a part of the UE capabilities have changed, it sends a message to the eNodeB regarding the update. The eNodeB forwards the message to the MME, which sends a response associated with the previously stored UE capability information to the eNodeB. The eNodeB decides whether the UE capabilities stored in the MME is up-to-date based on the message from the UE and the response from the MME. If the UE holds updated UE capabilities the eNodeB can request updated UE capability information from the UE.

First claim

What is claimed is:

1 . A method for a user equipment (UE) associated with UE capabilities, for handling UE capability information of the UE in a mobile telecommunications network comprising a core network node and a radio base station, the method comprising:
sending a first message comprising UE capability information of the UE; sending a second message comprising information indicative of the UE capabilities, wherein the second message comprises a flag indicating that the UE capabilities of the UE need to be updated; and receiving a request for the UE capability information from the radio base station.

2 . The method of claim 1 , wherein the first message is sent to the radio base station.

3 . The method of claim 1 , wherein the second message is sent to the core network node via the radio base station.

4 . The method of claim 1 , wherein the second message is sent when the UE intends to switch from idle state to active state.

5 . A user equipment (UE) associated with UE capabilities, for handling UE capability information of the UE in a mobile
telecommunications network that comprises a core network node and a radio base station, the UE comprising:
receiver circuitry; and
transmitter circuitry,
wherein the UE is configured to use the receiver circuitry and transmitter circuitry to:
send a first message comprising UE capability information of the UE;
send a second message comprising information indicative of the UE capabilities, wherein the second message comprises a flag that indicates that the UE capabilities of the UE need to be updated; and
receive a request for the UE capability information from the radio base station.

6 . The UE of claim 5 , wherein the first message is sent to the radio base station.

7 . The UE of claim 5 , wherein the second message is sent to the core network node via the radio base station.

8 . The UE of claim 5 , wherein the second message is sent when the UE intends to switch from idle state to active state.

9 . A method for a radio base station for handling user equipment (UE) capability information of a UE in a mobile telecommunications network comprising a core network node and the radio base station, wherein the UE is associated with UE capabilities, the method comprising:
receiving a first message from the UE comprising UE capability information of the UE; providing a second message from the UE to the core network node, the second message comprising information indicative of the UE capabilities, wherein the second message comprises a flag indicating that the UE capabilities of the UE need to be updated; and sending a request to the UE for the UE capability information.

10 . A radio base station for handling user equipment (UE) capability information of a UE in a mobile telecommunications network that comprises a core network node and the radio network node, wherein the UE is associated with UE capabilities, the radio network node comprising:
receiver circuitry; and transmitter circuitry, wherein the radio network node is configured to use the receiver circuitry and transmitter circuitry to: receive a first message from the UE comprising UE capability information of the UE; provide a second message from the UE to the core network node, the second message comprising information indicative of the UE capabilities, wherein the second message comprises a flag indicating that the UE capabilities of the UE need to be updated; and send a request to the UE for the UE capability information.

Assignees

• Ericsson Telefon Ab L M

Inventors

• Mildh Gunnar
• Nordstrand Ingrid
• Rácz András
• Stattin Magnus
• Wallentin Pontus

Classifications

• H04W12/037

  of the control plane, e.g. signalling traffic · CPC title

• H04W8/22 Primary

  Processing or transfer of terminal data, e.g. status or physical capabilities · CPC title

• H04W12/10

  Integrity · CPC title

• H04L63/20

  for managing network security; network security policies in general (filtering policies H04L63/0227) · CPC title

• H04W8/08

  Mobility data transfer · CPC title