Automatic Full Email Download in Poor Wireless Coverage
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Solution Overview
Problem
Mobile communication devices, such as Blackberries, typically download only a partial email header due to limited resources, leading to incomplete email access in areas with poor wireless coverage, like airplanes or remote locations, where users cannot download full emails.
Innovation Solution
Implementing a method and apparatus that automatically downloads full emails, including attachments, when the device enters airplane mode, out-of-office areas, or detects poor coverage, using a system comprising a computing device, email server, and mobile communication device with event handlers to manage state changes, quality of service events, and memory management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If only partial email header is downloaded to save resources, then device memory and battery life are preserved, but complete email access is lost in areas with poor wireless coverage
Solution Approach 1:
The system performs preliminary actions by detecting when the device enters airplane mode or poor coverage areas, then proactively downloads the complete email and attachments before service is lost. This preemptive download ensures full email access is achieved while utilizing available battery life before it becomes critical.
2Reliability
If only partial email header is downloaded to conserve bandwidth, then wireless data usage is reduced, but full email content remains inaccessible when coverage is lost
Solution Approach 1:
The system detects entry into airplane mode or poor coverage areas and immediately initiates complete email downloads while any wireless connection remains available. This preliminary action maximizes bandwidth utilization during available connectivity windows, ensuring full email access without wasteful repeated download attempts later.
3Reliability
If full emails are always downloaded, then complete email access is ensured, but device memory and battery life are excessively consumed
Solution Approach 1:
The system applies local quality by differentiating between normal operation and airplane mode/poor coverage scenarios. During normal operation, only partial email headers are downloaded to conserve memory. When airplane mode or poor coverage is detected, the system locally adapts by downloading complete emails and attachments, providing targeted full access only where and when needed.
4Reliability
If partial email headers are downloaded to optimize resource usage, then memory and battery are preserved, but users cannot access full email content in poor coverage areas
Solution Approach 1:
The system performs preliminary detection of airplane mode or poor coverage conditions and automatically initiates complete email downloads before the user attempts to access full content. This preliminary action eliminates the need for users to manually check coverage conditions or repeatedly attempt downloads, providing seamless access to complete emails when needed.
Data Source
AI summary
A mobile communication device, computer readable storage medium, and method for determining whether to download a full instance of an email. The mobile communication device determines a change in quality of service of wireless communication, and sends a request to completely download from an email server a full instance of an email, based on the mobile communication device determining that the change in quality of service of wireless communication indicates the mobile communication device is entering a poor wireless coverage area.