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US 12,464,484 B2Granted
Indicating network types to use for SIP messages
AssigneeMalikie Innovations Limited
InventorsAndrew Allen, Adrian Buckley, Jan Hendrik Lucas Bakker
Life of this patent
Estimating the term…
Abstract
In some examples, a user equipment (UE) detects a change in a radio access technology, and in response to the change in the radio access technology, receives information sent by a wireless network. The UE compares the received information to a policy to determine whether a feature is supported by the wireless network, and based on the comparing, sends an indication informing the wireless network which network type of plural different network types to use for sending a Session Initiation Protocol (SIP) message.
Claims20
A method comprising:
- establishing, by a user equipment (UE), a connection with a wireless network using a radio access technology;
- receiving, by the UE, over a first transport, a first Session Initiation Protocol (SIP) message from the wireless network including a first request to establish a service with the wireless network using the first transport;
- determining, by the UE, that the service cannot be established using the first transport based on memory-stored information including a policy associated with the radio access technology;
- sending, by the UE, a second SIP message to the wireless network including an indication that the first request has been rejected, wherein the indication comprises a second transport;
- in response to the second SIP message, receiving, by the UE, over the second transport, a third SIP message from the wireless network including a second request to establish the service with the wireless network using the second transport;
- determining, by the UE, that a change of communication capabilities of the wireless network has occurred;
- and
- in response to the determining, sending, by the UE, a fourth SIP message to the wireless network, wherein the fourth SIP message indicates a need to transfer the service.
5 more elements
A user equipment (UE) comprising:
- a memory configured to store information including a policy associated with a radio access technology;
- and
- a processor configured to:
- establish a connection with a wireless network using the radio access technology;
- receive, over a first transport, a first Session Initiation Protocol (SIP) message from the wireless network including a first request to establish a service with the wireless network using the first transport;
- determine that the service cannot be established using the first transport based on the information stored in the memory;
- send a second SIP-message to the wireless network including an indication that the first request has been rejected, wherein the indication comprises a second transport;
- in response to the second SIP message, receive, over the second transport, a third SIP message from the wireless network including a second request to establish the service with the wireless network using the second transport;
- determine that a change of communication capabilities of the wireless network has occurred;
- and
- in response to the determination, send a fourth SIP message to the wireless network in response to detecting a change of communication capabilities of the wireless network, wherein the fourth SIP message indicates a need to transfer the service.
8 more elements
Dependencies are inferred from the claim text.