Multimedia Session Availability Notification in Wireless Networks
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Solution Overview
Problem
Wireless communication networks fail to effectively or efficiently notify calling user devices when called user devices become available to participate in voice calls due to scenarios like being powered off, in do-not-disturb mode, or lacking coverage.
Innovation Solution
A method and system in wireless communication networks to notify user devices of availability by receiving multimedia registration requests, correlating them with session requests, and transferring notifications to originating devices indicating the availability of terminating devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the network waits for the called user device to become available before notifying the calling user device, then notification accuracy is improved, but notification timeliness deteriorates
Solution Approach 1:
The network performs preliminary actions by detecting user device availability status changes and proactively preparing notifications before the calling user device attempts to establish a session. When a called user device transitions from unavailable to available state, the network detects this change and sends a notification to the calling user device in advance, rather than waiting passively for session establishment failure.
2Reliability
If the network implements comprehensive availability detection and notification mechanisms, then service reliability is improved, but system complexity increases
Solution Approach 1:
The network utilizes existing self-service mechanisms and available information within the IMS architecture to detect user device availability. Instead of implementing complex external monitoring systems, the network leverages registration messages, session initiation protocol exchanges, and existing network state information that user devices and network elements already generate and maintain during normal operation.
Solution Approach 2:
The notification mechanism is designed to work universally across different user device states and network conditions. The same availability detection and notification framework handles various scenarios including powered-off devices, do-not-disturb mode, coverage loss, and non-voice network attachment, eliminating the need for separate specialized mechanisms for each case.
3Speed
If the network sends immediate notifications upon availability detection, then notification responsiveness is improved, but information accuracy may deteriorate
Solution Approach 1:
The notification system incorporates feedback mechanisms to verify and update availability status. After sending an initial availability notification, the network continues to monitor the called user device state and can send update notifications or corrections if the availability status changes before the calling user device attempts session establishment, ensuring information remains accurate.
Data Source
AI summary
Various embodiments comprise wireless communication network to notify user devices of user availability. In some examples, the wireless communication network comprises multimedia circuitry. The multimedia circuitry receives a multimedia registration request from a terminating user device and registers the terminating user device for multimedia services. The multimedia circuitry correlates the multimedia registration of the terminating user device with a multimedia session request received from an originating user device. The multimedia circuitry transfers a notification for delivery to the originating user device that indicates an availability of the terminating user device.