Mobile Sensor Control Unit Bypassing Network Rejection
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Solution Overview
Problem
Devices equipped with cellular radio interfaces face challenges in maintaining communication with a home monitoring service center when rejected by all available wireless communication networks, leading to unnecessary delays and limitations in patient monitoring and mobility.
Innovation Solution
A device with a second control unit that bypasses or erases rejection messages from cellular or wireless data networks, allowing continued communication with the home monitoring service center by selecting alternative networks and managing log-on attempts through a timer and AT commands, ensuring uninterrupted data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the device refrains from further log-on attempts after rejection by a wireless communication network, then network resources are conserved, but communication continuity with the home monitoring service center is compromised
Solution Approach 1:
The device dynamically adjusts its log-on behavior based on network rejection status. When rejected, it temporarily refrains from attempts to conserve resources; when rejection is cleared, it automatically resumes log-on attempts to maintain communication continuity, creating a adaptive response mechanism
Solution Approach 2:
The device implements a feedback mechanism where it monitors network rejection messages and uses this information to control subsequent log-on attempts. The second control unit detects rejection status and adjusts the log-on behavior accordingly, ensuring resources are conserved during rejection periods while maintaining communication capability when possible
2Reliability
If the device continuously attempts log-on after rejection by all available networks, then communication continuity is maintained, but network resources are wasted
Solution Approach 1:
The log-on attempt behavior is made dynamic rather than static. The device adjusts its log-on strategy based on real-time network conditions and rejection status, transitioning between active attempting and restrained states to balance communication needs with resource conservation
3Reliability
If a full functional cellular telephone module is used, then wireless communication capability is ensured, but device complexity and cost increase
Solution Approach 1:
The cellular radio interface functionality is segmented into separate controllable components rather than relying on a monolithic cellular telephone module. This allows selective activation of communication functions and independent control of log-on attempts, reducing overall system complexity while maintaining essential wireless capability
Solution Approach 2:
The device implements automated control mechanisms where the second control unit autonomously manages log-on attempts based on network rejection status. This self-service approach eliminates the need for manual intervention and reduces the complexity of user interface components while ensuring reliable communication behavior
4Loss of energy
If the device pauses log-on attempts for a predetermined time after failure, then network resources are conserved, but communication response time increases
Solution Approach 1:
The device implements periodic log-on attempts with predetermined pauses between failures. This rhythmic pattern of attempting and pausing allows network resources to be conserved during rejection periods while ensuring that communication attempts resume systematically when conditions improve, balancing resource usage with response time
Data Source
AI summary
A wireless apparatus includes a cellular radio interface that is adapted to perform a data exchange by way of a wireless data network, a user identity module containing information for authorization of a user for use of wireless networks, and a control unit which controls establishment and implementation of the data exchange. A second control unit is included and adapted to limit, in respect of the duration of its effect, a rejection of the user identity module expressed by the locally available wireless data networks in logging on to the wireless data network by suitable control of the first control unit in the further course of the log-on process by bypassing communicated information about the rejection.