Methods and apparatus for enabling stateless communication in a mobile network

Patent metadata

Field	Value
Publication number	US-2025386313-A1
Application number	US-202418743384-A
Country	US
Kind code	A1
Filing date	Jun 14, 2024
Priority date	Jun 14, 2024
Publication date	Dec 18, 2025
Grant date	—

Abstract

A wireless transmit/receive unit (WTRU) transmits, to an Access and Mobility Management Function (AMF) in a network, a registration request including information indicating that a communication with the network is requested. In an example, the communication may be stateless communication (SC). The WTRU receives, from the AMF, a registration accept message including a communication token (CT). In an example, the CT may be granted by a communication management function (CMF). Additionally or alternatively, the CMF may be a stateless CMF (SCMF). Additionally or alternatively, the CT may be a stateless CT (SCT). Further, the WTRU determines to transmit data to the network. The WTRU determines that a connection between the WTRU and the network is unstable. The WTRU transmits a communication request message to the network, including the CT. The WTRU receives a communication response from the network. Additionally or alternatively, the communication response includes a confirmation of data transmission.

First claim

What is claimed:

1 . A method performed in a wireless transmit/receive unit (WTRU), the method comprising:
transmitting, to a network node in a network, a registration request including information indicating that a communication with the network is requested; receiving, from the network node, a registration accept message including a communication token (CT); determining to transmit data to the network; determining that a connection between the WTRU and the network is unstable; transmitting, to the network, a communication request message, including the CT; and receiving, from the network, a communication response.

2 . The method of claim 1 , wherein the communication is stateless communication (SC) and the network node is an AMF.

3 . The method of claim 1 , wherein the registration request further includes information about the requested communication, including one or more of: an operation type, one or more network function identities, one or more application function identities, payload size, payload type, or endpoint information.

4 . The method of claim 1 , wherein the CT is granted by a communication management function (CMF).

5 . The method of claim 4 , wherein the CMF is a stateless CMF (SCMF) and the CT is a stateless CT (SCT).

6 . The method of claim 1 , wherein the communication request message is a non-access stratum (NAS) message.

7 . The method of claim 1 , wherein the communication response includes a confirmation of data transmission.

8 . The method of claim 4 , wherein the communication response is received from the CMF.

9 . The method of claim 1 , wherein the communication response includes information indicating that one or more CT rules have changed.

10 . The method of claim 1 , wherein the communication response is an SC response.

11 . A wireless transmit/receive unit (WTRU) comprising:
a transceiver; and a processor operatively coupled to the transceiver; wherein:
the transceiver is configured to transmit, to a network node in a network, a registration request including information indicating that a communication with a network is requested;
the transceiver is configured to receive, from the network node, a registration accept message including a communication token (CT);
the processor is configured to determine to transmit data to the network;
the processor is configured to determine that a connection between the WTRU and the network is unstable;
the transceiver is configured to transmit, to the network, a communication request message, including the CT; and
the transceiver is configured to receive, from the network, a communication response.

12 . The WTRU of claim 11 , wherein the communication is stateless communication (SC) and the network node is an AMF.

13 . The WTRU of claim 11 , wherein the registration request further includes information about the requested communication, including one or more of: an operation type, one or more network function identities, one or more application function identities, payload size, payload type, or endpoint information.

14 . The WTRU of claim 11 , wherein the CT is granted by a communication management function (CMF).

15 . The WTRU of claim 14 , wherein the CMF is a stateless CMF (SCMF) and the CT is a stateless CT (SCT).

16 . The WTRU of claim 11 , wherein the communication request message is a non-access stratum (NAS) message.

17 . The WTRU of claim 11 , wherein the communication response includes a confirmation of data transmission.

18 . The WTRU of claim 14 , wherein the communication response is received from the CMF.

19 . The WTRU of claim 11 , wherein the communication response includes indication information indicating that one or more CT rules have changed.

20 . The WTRU of claim 11 , wherein the communication response is an SC response.

Assignees

• Interdigital Patent Holdings Inc

Inventors

• Al-Hares Mohamad Kenan
• Roy Michel
• Olvera-Hernandez Ulises
• Wang Zhibi
• Starsinic Michael
• Abbas Taimoor

Classifications

• H04W48/18

  Selecting a network or a communication service · CPC title

• H04W60/00 Primary

  Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration · CPC title