Dynamic Bandwidth Allocation for Cellular Data Downloads
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Solution Overview
Problem
Wireless communication networks face limited bandwidth compared to wired networks, resulting in slower data transaction speeds for cellular telephone users, including call setup and data file downloads.
Innovation Solution
A system and method that dynamically allocates wireless bandwidth to mobile devices based on available resources, user demand, and communication channel characteristics, providing users with estimated completion times for calls and data sessions, allowing them to make informed decisions about proceeding with communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If wireless bandwidth is increased to improve data transaction speed, then user experience improves, but network capacity and resource availability are exceeded
Solution Approach 1:
The patent implements dynamic bandwidth allocation where the system continuously monitors network conditions, user demand, and channel characteristics to adjust bandwidth allocation in real-time. This allows the network to optimize data transaction speed dynamically without requiring excessive total bandwidth capacity, resolving the contradiction between speed improvement and resource availability.
Solution Approach 2:
The system changes multiple parameters simultaneously including bandwidth allocation, modulation schemes, and coding rates to adapt to current network conditions. By adjusting these parameters dynamically, the system achieves higher effective data transaction speeds when conditions permit while conserving bandwidth when resources are limited.
2Productivity
If more users are served simultaneously to improve network utilization, then overall productivity increases, but individual user data transaction speed decreases
Solution Approach 1:
The patent applies different quality levels of service to different users based on their specific needs, channel conditions, and priority levels. High-priority users or those with excellent channel conditions receive optimized bandwidth allocation for maximum speed, while other users share the remaining capacity. This localized quality approach maintains high individual speeds for critical users while achieving high overall network utilization.
Solution Approach 2:
The system dynamically adjusts bandwidth allocation for each user based on real-time monitoring of network load, user demand, and channel characteristics. When network conditions allow, more users can be served at higher speeds; when congestion occurs, allocation is adjusted to maintain service quality. This dynamic approach resolves the contradiction between serving more users and maintaining individual speed.
3Device complexity
If bandwidth allocation is made static and predictable to simplify management, then system complexity decreases, but adaptability to changing network conditions and user demands deteriorates
Solution Approach 1:
The patent implements self-service mechanisms where the network system automatically monitors its own state, detects changes in bandwidth availability and user demand, and adjusts allocations without external intervention. This self-managing approach maintains low operational complexity while achieving high adaptability, as the system handles its own optimization without requiring complex external control mechanisms.
Solution Approach 2:
The system incorporates continuous feedback loops that monitor network performance, user satisfaction, and resource utilization. This feedback drives automatic adjustments to bandwidth allocation, enabling the system to adapt to changing conditions while maintaining manageable complexity through rule-based or algorithmic decision-making rather than complex human oversight.
Data Source
AI summary
A method for determining an amount of time required to download a data file to a wireless device includes receiving information indicating a first amount of wireless bandwidth allocated for the download of the data file, calculating a first length of time required to download the data file to the wireless device based on the first amount of wireless bandwidth allocated, and comparing the first length of time required to a predetermined amount of time. If the first length of time required is less than the predetermined amount of time, the download begins. If the first length of time required is more than the predetermined amount of time, information indicating the first length of time required is sent to the wireless device, a start download signal is received from the wireless device, and download of the data file to the wireless device begins in response to the start download signal.