PON Wireless Handover Elimination
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Solution Overview
Problem
High-speed wireless networks face frequent handover interruptions due to the small cell size of high-speed wireless service, leading to increased latency, packet loss, and abnormal terminations of communication sessions, especially in mobile environments like vehicular pathways.
Innovation Solution
A passive optical network (PON) system that broadcasts downstream packets from an optical line terminal (OLT) to multiple optical network terminals (ONTs), eliminating the need for handovers between adjacent cells by treating each cell as a sector of the same base station, allowing seamless communication across a larger area without interruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If high speed wireless service is implemented with small cell size, then data throughput is improved, but handover frequency increases causing service interruptions
Solution Approach 1:
The patent merges multiple base stations into a single logical base station by connecting them through a passive optical network. This allows the network to treat multiple cells as one unified coverage area, eliminating handovers when mobile stations move between adjacent cells served by different base stations but within the same PON domain.
Solution Approach 2:
The passive optical network acts as an intermediary connecting multiple base stations, enabling them to function as a unified communication domain. The PON infrastructure allows downstream packets to be broadcast to multiple ONTs simultaneously, creating seamless coverage without traditional handover mechanisms.
2Speed
If cell size is reduced to provide high speed wireless service, then data throughput is improved, but the number of handovers required increases
Solution Approach 1:
Multiple base stations are merged into a single logical entity through the PON architecture. This consolidation eliminates the need for complex handover management between adjacent cells, as the network treats all cells under the same PON as a unified service area with continuous coverage.
3Adaptability or versatility
If frequent handovers are executed between cells, then mobile subscriber can maintain connectivity while moving, but service interruptions and packet loss increase
Solution Approach 1:
The PON-based unified base station architecture provides continuous service coverage without interruptions. Downstream packets are broadcast simultaneously to multiple ONTs across different physical cells, ensuring that mobile stations always have available coverage without breaking connectivity during movement.
Data Source
AI summary
In one embodiment, a method for providing wireless communications utilizing a passive optical network (PON) is disclosed. The method includes receiving, at a PON, downstream packets from a base station destined for a mobile station, and transmitting the downstream packets to wireless transceivers associated with PON. The method also includes receiving, at the first wireless transceiver communicatively coupled to a first optical network terminal (ONT), the downstream packets from the first ONT and transmitting a first wireless signal comprising the downstream packets to a first cell. The method also includes receiving, at a second wireless transceiver communicatively coupled to a second ONT, the downstream packets from the second ONT and transmitting a second wireless signal comprising the downstream packets to a second cell.