Group Call Management via Broadcast and Unicast Prioritization
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Solution Overview
Problem
Cellular broadband-based PTT systems are inefficient due to unicast control messages and media, which require devices to transition to a 'connected' mode, reducing battery life and utilizing large network resources.
Innovation Solution
A method for managing group calls that determines the association between user communication entities and delivery methods, prioritizing calls, and selectively conveying call control messages via unicast or broadcast, optimizing resource utilization and reducing unnecessary transitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If unicast control messages and media are used in cellular broadband-based PTT systems, then individual user communication can be delivered, but battery life is reduced and network resources are consumed
Solution Approach 1:
The patent segments the delivery of control messages and media into two distinct pathways: broadcast for common information and unicast for individual communications. This allows devices to receive group communications efficiently via broadcast while reserving unicast only when necessary for individual user needs, thereby reducing unnecessary mode transitions and battery consumption.
Solution Approach 2:
The patent introduces a broadcast channel as an intermediary mechanism for delivering control messages and media to multiple users simultaneously. This broadcast intermediary eliminates the need for each user to transition to connected mode individually, allowing them to receive group communications in a more energy-efficient state.
2Reliability
If unicast control messages and media are used in cellular broadband-based PTT systems, then individual user communication can be delivered, but network resources are utilized excessively
Solution Approach 1:
The patent segments the network resource utilization by separating broadcast-based group communications from unicast-based individual communications. This segmentation allows the network to serve multiple users simultaneously through efficient broadcast channels for common content, reserving unicast resources only for users requiring individualized service, thereby reducing overall network resource consumption.
Solution Approach 2:
The patent implements a universal broadcast channel that can serve multiple users simultaneously for delivering control messages and media. This multi-functional broadcast mechanism replaces multiple individual unicast connections, allowing a single network resource to serve multiple purposes and reducing the total quantity of network resources required.
3Reliability
If devices transition to connected mode to receive control messages or media, then communication can be established, but battery life is reduced
Solution Approach 1:
The patent introduces a broadcast channel as an intermediary that enables communication establishment without requiring devices to transition to connected mode. Users can receive control messages and media through this broadcast intermediary while remaining in a lower-power state, thereby establishing communication reliably while preserving battery life.
Solution Approach 2:
The patent changes the operational parameter of device mode by enabling broadcast-based communication that allows users to remain in idle or reduced-power states rather than transitioning to full connected mode. This parameter change in communication methodology enables reliable communication establishment while minimizing energy consumption associated with mode transitions.
Data Source
AI summary
A method and system of managing group calls is disclosed. The method of comprises receiving call control signaling associated with a group of user communication entities; identifying a user communication entity of the group of user communication entities; determining a first association between the user communication entity, the first group call and at least one of a first delivery method and a second delivery method; in response to determining the first association: determining that the user communication entity is participating in a second group call; determining whether a first priority associated with the first group call and the user communication entity is higher than a second priority associated with the second group call and the user communication entity; and based on a determination that the first priority is higher, conveying to the user communication entity via the first delivery method a call control message associated with the first group call.