CN-122001928-A - Policy aware user equipment address change handling

Abstract

Embodiments of the present disclosure relate to policy aware user equipment address change processing. The present disclosure provides a method comprising establishing a session management SM policy association with a session management function, SMF, for a packet data unit, PDU, session of a user equipment, UE, wherein a plurality of UE addresses are used in the PDU session. The method includes receiving information from the SMF indicating that a first UE address of a plurality of UE addresses has been released from the PDU session. The method includes making a determination that a first UE address is used to identify an AF session with an application function AF, wherein the AF session is associated with a PDU session. And based on the determination, the method includes terminating an AF session with the AF or requesting the AF to select a second UE address among the plurality of UE addresses to identify the AF session.

Inventors

• A. Papagirchio
• B. PAUL
• T. J. Luo Qiaoning

Assignees

• 诺基亚技术有限公司

Dates

Publication Date

20260508

Application Date

20251104

Priority Date

20241107

Claims (10)

1. 1. An apparatus for communication, comprising: At least one memory configured to store instructions, and At least one processing circuitry configured to access the at least one memory and execute the instructions to cause the apparatus at least to: Establishing a session management SM policy association for a session management function SMF for a packet data unit PDU session of a user equipment UE, wherein a plurality of UE addresses are used in said PDU session; receiving information from the SMF indicating that a first UE address of the plurality of UE addresses has been released from the PDU session; A determination is made that the first UE address is used to identify an AF session with an application function AF, wherein the AF session is associated with the PDU session, and based on the determination, Terminating the AF session with the AF or requesting the AF to select a second UE address among the plurality of UE addresses to identify the AF session.
2. 2. The apparatus of claim 1, wherein the apparatus is caused to terminate the AF session based on the determination, or The apparatus is caused to request the AF to select the second UE address among the plurality of UE addresses to identify the AF session.
3. 3. The apparatus of claim 1, wherein the at least one processing circuitry is configured to execute the instructions to cause the apparatus to further at least: Receiving information indicating that one or more of the plurality of UE addresses is susceptible to change, Transmitting information to the AF indicating that the one or more of the plurality of UE addresses is susceptible to alteration, for the UE to select another one of the plurality of UE addresses to identify the AF session, Wherein the at least one processing circuitry is configured to execute the instructions to cause the apparatus to further select other UE addresses as suggested UE addresses to identify the AF session, and Wherein the information indicating that the one or more of the plurality of UE addresses is susceptible to change is sent to the AF together with information indicating the proposed UE address.
4. 4. A method for communication, comprising: Establishing a session management SM policy association for a session management function SMF for a packet data unit PDU session of a user equipment UE, wherein a plurality of UE addresses are used in said PDU session; receiving information from the SMF indicating that a first UE address among the plurality of UE addresses has been released from the PDU session; A determination is made that the first UE address is used to identify an AF session with an application function AF, wherein the AF session is associated with the PDU session, and based on the determination, Terminating the AF session with the AF or requesting the AF to select a second UE address among the plurality of UE addresses to identify the AF session.
5. 5. The method of claim 4, wherein the method comprises terminating the AF session based on the determination, or The method includes requesting the AF to select the second UE address among the plurality of UE addresses to identify the AF session.
6. 6. The method of claim 4, wherein the method further comprises: receiving information indicating that one or more of the plurality of UE addresses is susceptible to change, and Transmitting information to the AF indicating that the one or more of the plurality of UE addresses is susceptible to change, for the UE to select another UE address among the plurality of UE addresses to identify the AF session, Wherein the method further comprises selecting other UE addresses as suggested UE addresses to identify the AF-session, and Wherein information indicating that one or more of the plurality of UE addresses is susceptible to change is sent to the AF along with information indicating the proposed UE address.
7. 7. An apparatus for communication, comprising: At least one memory configured to store instructions, and At least one processing circuitry configured to access the at least one memory and execute the instructions to cause the apparatus at least to: Establishing a session management SM policy association for a session management function SMF for a packet data unit PDU session of a user equipment UE, wherein a plurality of UE addresses are used in said PDU session; Establishing an AF session with an application function AF, wherein the AF session is identified by a UE address and the AF session is associated with the PDU session, and Information indicating the UE address used to identify the AF session is sent to the SMF for consideration by the SMF in one or more address allocation procedures in which at least one of the plurality of UE addresses is to be released.
8. 8. The apparatus of claim 7, wherein the at least one processing circuitry is configured to execute the instructions to cause the apparatus to further at least: Receiving information from the SMF indicating that a first UE address between the plurality of UE addresses has been released from the PDU session; Making a determination that the first UE address is used to identify the AF session and based on the determination, Terminating the AF session with the AF or requesting the AF to select a second UE address among the plurality of UE addresses to identify the AF session.
9. 9. A method for communication, comprising: Establishing a session management SM policy association for a session management function SMF for a packet data unit PDU session of a user equipment UE, wherein a plurality of UE addresses are used in said PDU session; Establishing an AF session with an application function AF, wherein the AF session is identified by a UE address and the AF session is associated with the PDU session, and Information indicating the UE address used to identify the AF session is sent to the SMF for consideration by the SMF in one or more address allocation procedures in which at least one of the plurality of UE addresses is to be released.
10. 10. The method of claim 9, wherein the method further comprises: Receiving information from the SMF indicating that a first UE address between the plurality of UE addresses has been released from the PDU session; A determination is made that the first UE address is used to identify the AF session, and based on the determination, Terminating the AF session with the AF or requesting the AF to select a second UE address among the plurality of UE addresses to identify the AF session.

Description

Policy aware user equipment address change handling Technical Field The present disclosure relates generally to telecommunications and, in particular, to policy control and authorization in a telecommunications system. Background A telecommunications system may be considered a facility that enables communication sessions between two or more entities, such as user terminals, base stations, and/or other nodes by providing carriers between the various entities involved in the communication path. The telecommunication system may be provided, for example, in the form of a communication network and one or more compatible communication devices. The communication session may include, for example, data communications for carrying communications such as voice, video, electronic mail (email), text messages, multimedia, and/or content data. Non-limiting examples of services provided include two-way or multi-way calls, data communications, or multimedia services, and access to data network systems such as the internet. In a wireless telecommunication system, at least a portion of a communication session between at least two base stations occurs over a wireless link. Examples of wireless telecommunication systems include Public Land Mobile Networks (PLMNs), satellite-based communication systems, and different wireless local area networks, such as Wireless Local Area Networks (WLANs). Some wireless systems may be divided into cells and are therefore commonly referred to as cellular systems. The user may access the telecommunications system through a suitable communication device or terminal. The user's communication equipment may be referred to as User Equipment (UE) or user equipment. The communication device is provided with suitable signal receiving and transmitting means for enabling communication, for example enabling access to a communication network or communication directly with other users. The communication device may access a carrier provided by a station, such as a base station of a cell, and transmit and/or receive communications on the carrier. A telecommunications system and associated equipment typically operate in accordance with a given standard or specification which sets out what the various entities associated with the telecommunications system are permitted to do and how that operation should be achieved. Communication protocols and/or parameters which shall be used for the connection of the various entities are also typically defined. One example of a telecommunication system is the Universal Mobile Telecommunication System (UMTS). Other examples of telecommunication systems are Long Term Evolution (LTE), LTE-advanced, and so-called 5G or New Radio (NR) networks. NR is being standardized by the third generation partnership project (3 GPP). Disclosure of Invention Example implementations of the present disclosure relate to telecommunications, and in particular, to policy control and authorization in a telecommunications system. The present disclosure includes, but is not limited to, the following example implementations. Some example implementations provide an apparatus comprising at least one memory configured to store instructions, and at least one processing circuitry configured to access the at least one memory, and execute the instructions to cause the apparatus at least to establish a Session Management (SM) policy association with a Session Management Function (SMF) for a Packet Data Unit (PDU) session of a User Equipment (UE), wherein a plurality of UE addresses are used in the PDU session, receive information from the SMF indicating that a first UE address of the plurality of UE addresses has been released from the PDU session, make a determination that the first UE address is used to identify an AF session with an Application Function (AF), wherein the AF session is associated with the PDU session, and terminate the AF session with the AF or request the AF to select a second UE address between the plurality of UE addresses to identify the AF session based on the determination. Some example implementations provide a method comprising establishing a Session Management (SM) policy association with a Session Management Function (SMF) for a Packet Data Unit (PDU) session of a User Equipment (UE), wherein a plurality of UE addresses are used in the PDU session, receiving information from the SMF indicating that a first UE address of the plurality of UE addresses has been released from the PDU session, making a determination that the first UE address is used to identify an AF session with an Application Function (AF), wherein the AF session is associated with the PDU session, and terminating the AF session with the AF or requesting the AF to select a second UE address among the plurality of UE addresses to identify the AF session based on the determination. Some example implementations provide an apparatus comprising at least one memory configured to store instructions, and at least one processing