PtMP Wireless Communication Subchannel Partitioning for PLMR Throughput
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Solution Overview
Problem
Current Point to Multipoint (PtMP) wireless communication systems operating over Private Land Mobile Radio (PLMR) channels face limited throughput due to narrow channel bandwidth, restricting high-speed data communication in mission-critical applications.
Innovation Solution
The system partitions total bandwidth into subchannels with fixed bandwidth, allowing each sector to use a subset of subchannels, creating a subchannel bit map to indicate availability, enabling communication over combined adjacent or non-adjacent PLMR channels, thereby increasing throughput without rearranging channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If PtMP wireless communication systems operate over single PLMR channels, then the system can maintain compatibility with existing PLMR infrastructure, but the throughput is limited by the narrow channel bandwidth
Solution Approach 1:
The patent segments the available frequency spectrum into multiple subchannels, each with fixed bandwidth. The processor partitions the total bandwidth into subchannels and assigns subsets to different sectors, enabling parallel data transmission across multiple subchannels to achieve high throughput while maintaining manageable system complexity through structured organization
Solution Approach 2:
The patent combines multiple adjacent and non-adjacent PLMR channels into a unified communication system. The processor aggregates bandwidth from multiple channels, creating a pooled resource that can be dynamically allocated to sectors, thereby achieving high throughput without requiring complete reconfiguration of existing PLMR infrastructure
2Speed
If the system combines multiple adjacent and non-adjacent PLMR channels to increase throughput, then data communication speed improves, but channel allocation and management complexity increases
Solution Approach 1:
The patent segments the combined PLMR channels into frequency-adjacent subchannels with fixed bandwidth. The processor creates a systematic partitioning that groups channels into manageable subchannel units, which can be independently allocated to sectors using subchannel bit maps, thereby simplifying the management of combined channels while maintaining high data communication speed
Solution Approach 2:
The patent changes the parameter of channel organization from individual PLMR channels to aggregated subchannels with fixed bandwidth. This parameter transformation allows the system to treat multiple channels as unified resources, simplifying allocation logic through standardized subchannel units while achieving high throughput through combined bandwidth
3Productivity
If PLMR channels are rearranged to create continuous bands for improved communication, then frequency utilization improves, but system reconfiguration and deployment complexity increases
Solution Approach 1:
Instead of rearranging PLMR channels to create continuous frequency bands, the patent inverts the approach by implementing logical continuity through subchannel bit maps and processor-managed allocation. The system maintains the original physical channel assignments while achieving continuous frequency utilization through virtual aggregation, thereby improving frequency utilization without increasing deployment complexity
Data Source
AI summary
A system and method for PtMP wireless communication is provided. The PtMP wireless communication system can include a plurality of sectors each including a base station and a remote station(s). A total bandwidth the system can be determined based on a frequency range of a continuous band allocated to the system, or one or more PLMR channels when the system communicates over a Private Land Mobile Radio (PLMR) band having one or more channels. The total bandwidth can be portioned into subchannel(s), each having fixed subchannel bandwidth. Each sector can be assigned a subset of the plurality of subchannels. A subchannel bit map can be created and populated for the plurality of subchannels, specifying whether availability of each subchannel for the particular sector, and the base stations of each sector can communicate over the subchannels allocated to the at least one sector according to the respective populated subchannel bit map.