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US 11,863,323 B2Granted
Avoiding multiple retransmissions of signalling transported by 5G NAS transport
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsIvo Sedlacek, Kaj Johansson, Mikael Wass
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Abstract
A wireless device and an Access and Mobility Management Function (AMF) and methods performed by a wireless device and an AMF, respectively.
Claims21
A method implemented in a wireless device, comprising:
- transmitting a transport message to an Access and Mobility Function (AMF), wherein the transport message comprises a session management message to be forwarded by the AMF to a Session Management Function (SMF);
- and
- after transmitting the transport message to the AMF, receiving a message transmitted by the AMF, wherein the message comprises the session management message and an indication of non-delivery of the session management message, wherein
- the transport message is an uplink (UL) transport message, and
- the session management message is a 5G session management (5GSM) message.
2 more elements
A non-transitory computer readable medium storing a computer program comprising instructions for configuring a wireless device to:
- transmit a transport message to an Access and Mobility Function (AMF), wherein the transport message comprises a session management message to be forwarded by the AMF to a Session Management Function (SMF);
- and
- after transmitting the transport message to the AMF, process a received message that was transmitted by the AMF, wherein the received message comprises the session management message and an indication of non-delivery of the session management message, wherein
- the transport message is an uplink (UL) transport message, and
- the session management message is a 5G session management (5GSM) message.
2 more elements
A wireless device, the wireless device comprising:
- a receiver;
- a transmitter;
- and
- processing circuitry coupled to the receiver and the transmitter, wherein the wireless device is configured to:
- employ the transmitter to transmit a transport message to an Access and Mobility Function (AMF), wherein the transport message comprises a session management message to be forwarded by the AMF to a Session Management Function (SMF);
- and
- after transmitting the transport message to the AMF, process a received message that was transmitted by the AMF, wherein the received message comprises the session management message and an indication of non-delivery of the session management message, wherein
- the transport message is an uplink (UL) transport message, and
- the session management message is a 5G session management (5GSM) message.
6 more elements
A method performed by a 3GPP Access and Mobility Management Function (AMF), comprising:
- receiving a transport message transmitted by a wireless device, wherein the transport message comprises a session management message;
- determining whether the session management message can be forwarded to a 3GPP Session Management Function (SMF);
- as a result of determining that the session management message cannot be forwarded to a SMF, transmitting a message to the wireless device, the message comprising the session management message and an indication of non-delivery of the session management message to a SMF, wherein
- the transport message is an uplink (UL) transport message, and
- the session management message is a 5G session management (5GSM) message.
2 more elements
Dependencies are inferred from the claim text.