CPC H04L 51/226 (2022.05) [H04L 47/2458 (2013.01); H04L 65/1104 (2022.05); H04L 65/80 (2013.01); H04L 67/61 (2022.05); H04L 69/22 (2013.01); H04W 4/12 (2013.01); H04W 28/0268 (2013.01)] | 20 Claims |
1. A method of operating a wireless communication system to transfer a user message to a message destination using a priority Quality-of-Service (QoS), the method comprising:
a wireless User Equipment (UE) generating a Session Initiation Protocol (SIP) message that comprises a P-Access-Network Info (PANI) header and the user message, wherein the PANI header indicates the priority QoS and an establishment cause and the user message indicates the message destination;
the wireless UE wirelessly transferring the SIP message to the wireless network;
the wireless network wirelessly receiving the SIP message from the UE;
the wireless network transferring the SIP message to a message network; and
the message network receiving the SIP message, and in response to the priority QoS and the establishment cause indicated in the PANI header, generating and transferring another SIP message using the priority QoS and the establishment cause, wherein the other SIP message comprises another PANI header and the user message.
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