Emergency Multimedia Session Binding for Faster Wireless Call Setup
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Solution Overview
Problem
Wireless communication networks face inefficiencies in establishing multimedia sessions, particularly during emergency situations, leading to increased setup times and negatively impacting user experience.
Innovation Solution
A multimedia controller in the communication network pre-approves multimedia sessions between user devices by creating a contact binding that indicates the network location of emergency contacts, allowing for one-way and then two-way multimedia sessions to be established quickly without the need for a traditional handshake process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional IMS signaling handshake process is used to establish multimedia sessions, then connection reliability is ensured through proper authentication and resource reservation, but session setup time increases significantly
Solution Approach 1:
The system performs preliminary actions by pre-establishing contact bindings between emergency contacts during normal conditions. These bindings include pre-authenticated session information and network location data that can be rapidly activated during emergencies without requiring full IMS handshake procedures, thus reducing setup time while maintaining connection reliability through pre-validated authentication.
Solution Approach 2:
The session establishment process is segmented into normal mode (using full IMS signaling for non-emergency calls) and emergency mode (using pre-configured contact bindings). This segmentation allows the system to bypass time-consuming authentication and resource reservation steps during emergencies while maintaining reliability through the pre-validated binding information.
2Reliability
If traditional IMS signaling procedures are followed for emergency calls, then proper resource reservation and network coordination are achieved, but the signaling load increases and delays critical emergency communication
Solution Approach 1:
Resource reservation information is pre-configured in the contact bindings during normal system operation. When an emergency call is initiated, the multimedia controller directly utilizes these pre-reserved resource allocations without triggering additional resource reservation signaling, thereby maintaining reliable resource allocation while dramatically improving emergency response efficiency by eliminating signaling delays.
3Ease of operation
If full two-way multimedia session establishment is attempted immediately during emergencies, then complete bidirectional communication is achieved, but setup time increases and one-way communication capability is delayed
Solution Approach 1:
The contact bindings are pre-configured with the capability to immediately establish one-way multimedia sessions. When an emergency call is initiated, the calling device can immediately transmit audio/video data through the pre-established binding while the receiving device is simultaneously notified. This allows critical one-way communication to begin instantly, with bidirectional communication being fully established as the receiving device comes online, thereby reducing the time to establish communication while maintaining ease of operation.
Data Source
AI summary
Various embodiments comprise a communication network comprising a multimedia controller. The multimedia controller receives an emergency contact list from a user device that identifies another user device. The multimedia controller transfers an emergency contact request to the other user device and receives an accept response from the other user device. The multimedia controller creates a contact binding that pre-approves multimedia sessions between the user device and the other user device and that indicates a network location of the other user device. The multimedia controller receives an emergency call request from the user device to establish an emergency multimedia session with the other user device and forwards the request to the other user device. The multimedia controller establishes a one-way multimedia session between the user device and the other user device. The multimedia controller establishes a two-way multimedia session in response to the other user device accepting the emergency call request.