Three-Way OFDMA Handover for Wireless Throughput
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Solution Overview
Problem
Current OFDMA wireless communication systems are limited in data throughput due to the restriction of a wireless device communicating with only one base station at a time, which restricts bandwidth usage and reduces maximum throughput to one-third of the allocated spectrum, especially when handling multiple services concurrently.
Innovation Solution
Establishing multiple connections between a wireless device and multiple base stations using different segments of an OFDMA frame, allowing for concurrent processing and handover between these connections to utilize the full bandwidth spectrum, thereby increasing data throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a wireless device communicates with only one base station at a time using a single segment of OFDMA frame, then device complexity is reduced and ease of operation is improved, but data throughput is limited to one-third of the allocated spectrum bandwidth
Solution Approach 1:
The OFDMA frame is divided into three segments, with each segment handled by a different base station. The wireless device establishes separate connections for each segment, allowing concurrent processing of data from multiple base stations. This segmentation enables the device to utilize the full bandwidth spectrum across all three segments simultaneously, achieving three-way concurrent processing and increasing data throughput from one-third to the full allocated spectrum bandwidth.
2Productivity
If a wireless device establishes multiple connections with multiple base stations using different segments of OFDMA frame, then data throughput increases by utilizing full bandwidth spectrum, but device complexity and difficulty of detecting and measuring signals increase
Solution Approach 1:
A synchronization mechanism is introduced as an intermediary function to manage the multiple connections. The device performs synchronization procedures with each base station, detecting and measuring signal parameters such as timing and frequency offsets. This intermediary synchronization process coordinates the multiple connections, allowing the device to handle concurrent data streams from three base stations while maintaining signal integrity and measurement accuracy.
3Productivity
If a wireless device concurrently processes data from multiple base stations using different segments, then data throughput and network efficiency are enhanced, but the difficulty of coordinating and managing multiple connections increases
Solution Approach 1:
The connection management system implements dynamic coordination where the wireless device can flexibly establish, maintain, and terminate connections with different base stations based on current network conditions and data requirements. The device dynamically allocates processing resources to handle concurrent data streams from multiple base stations, adjusting connection priorities and resource allocation in real-time to optimize network efficiency while managing coordination complexity.
Data Source
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AI summary
Methods and apparatus for establishing multiple connections between a wireless device and multiple base stations and transferring data using these connections via different segments of an orthogonal frequency division multiple access (OFDMA) frame are provided. The multiple connections may be used for multi-way (e.g., three-way) concurrent processing, multi-way (e.g., three-way) handover, or a hybrid between concurrent processing and multi-way handover in an effort to increase data throughput for the wireless device.