PTT Ready Modes for Balancing Response Time and Battery Life
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Solution Overview
Problem
Push-to-talk (PTT) mobile stations experience reduced battery life due to frequent resource checks required for quick call connections, which compromise service quality.
Innovation Solution
The implementation of customizable PTT ready modes, including non-slotted operation, reduced slot cycle times, multiple phone number assignments, separate paging channels, multicast paging, lower loaded access channels, increased transmit power, lower loaded frequency channels, and gated traffic channels, allows users to optimize battery usage while maintaining service quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the mobile station checks the paging channel more frequently to enable faster PTT response times, then the response time is improved, but the battery life is reduced
Solution Approach 1:
The system dynamically adjusts the paging channel check frequency based on operational mode. In PTT mode, checks occur more frequently to ensure quick response times, while in conventional mode, checks are less frequent to conserve battery. This dynamic adaptation allows the system to optimize between response speed and battery consumption based on current operational requirements.
Solution Approach 2:
The patent changes the parameter of paging channel check frequency based on the operational mode. When PTT mode is activated, the check frequency parameter is increased to enable faster response. When in conventional mode, the parameter is reduced to save battery power. This parameter adjustment directly addresses the contradiction by allowing the system to have different performance characteristics under different operating conditions.
2Reliability
If the mobile station operates in PTT mode with frequent paging channel checks, then the service availability is improved, but the energy consumption increases
Solution Approach 1:
The system dynamically switches between PTT mode and conventional mode based on user activation. When PTT mode is active, the system maintains high service availability through frequent paging channel checks. When deactivated, it switches to conventional mode with reduced energy consumption. This dynamic mode switching allows the system to provide high reliability only when actually needed.
Solution Approach 2:
The patent implements periodic paging channel checks with different periods depending on the operational mode. In PTT mode, the period is shorter (more frequent checks) to ensure high service availability. In conventional mode, the period is longer (less frequent checks) to reduce energy consumption. This periodic action with variable periods resolves the contradiction between reliability and energy use.
Data Source
AI summary
A push-to-talk (PTT) mobile station having a PTT ready mode, the mobile station having a controller adapted for executing computer program code; a memory connected to the controller for storing computer program code; computer program code stored in the memory and executable by the controller for operating the mobile station in the PTT ready mode selected from a plurality of PTT ready mode techniques, for establishing a PTT session; and a radio subsystem connected to the controller and the memory, the subsystem being configured for enabling the PTT mobile station to operate in the PTT ready mode for establishing one of the PTT session, PTT traffic, or both the PTT session and PTT traffic.