Segment Allocation in Broadband Wireless Systems
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In broadband wireless communication systems, the limited number of segments and potential segment duplication between neighboring sectors lead to deteriorated downlink throughput and modulation capabilities due to shared carrier sets and increased interference.
Innovation Solution
An apparatus and method for segment allocation that prioritizes sector pairs based on proximity, calculated by interference and path loss, to minimize segment duplication and allocate unique segments to each sector, ensuring accurate channel estimation and reduced interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the same segment is allocated to neighboring sectors, then the system simplifies segment management, but downlink throughput deteriorates due to carrier set duplication and increased interference
Solution Approach 1:
The patent applies local quality by allocating different segments to neighboring sectors based on their specific geographic locations and interference characteristics. Each sector receives a segment tailored to its local environment, ensuring that carrier sets are differentiated in high-interference areas while maintaining simplicity in low-interference areas. This resolves the contradiction by making segment allocation locally optimized rather than uniformly simple.
Solution Approach 2:
The patent changes the segment allocation parameter dynamically based on proximity metrics and interference levels between sectors. By adjusting which segments are assigned to which sectors according to calculated proximity values, the system optimizes downlink throughput while managing complexity through systematic parameter variation rather than arbitrary allocation.
2Device complexity
If the same segment is allocated to neighboring sectors, then segment allocation becomes simpler, but modulation capability deteriorates due to inaccurate channel estimation
Solution Approach 1:
The patent implements local quality by allocating segments based on the specific channel characteristics and geographic proximity of each sector. Neighboring sectors that would cause interference receive different segments, ensuring that pilot signals are transmitted on different carrier sets. This enables accurate channel estimation for each sector while keeping the allocation rule systematic and manageable.
Solution Approach 2:
The patent applies preliminary action by calculating proximity metrics and determining optimal segment allocations before actual communication begins. The system pre-assigns segments to sectors based on predicted interference patterns and geographic relationships, ensuring that channel estimation can proceed accurately from the start without requiring dynamic adjustments during operation.
3Ease of operation
If the same segment is allocated to neighboring sectors, then resource management becomes easier, but interference between sectors increases leading to reduced system performance
Solution Approach 1:
The patent applies local quality by differentiating segment allocation based on the specific interference environment of each sector. Neighboring sectors are assigned different segments when proximity calculations indicate potential interference, while sectors that are farther apart or have different directional characteristics may share segments. This maintains ease of operation through systematic rules while reducing harmful interference.
Solution Approach 2:
The patent introduces proximity metrics and interference calculation algorithms as intermediaries between the resource management system and actual segment allocation. These intermediaries analyze the relationships between sectors and mediate the allocation process, automatically determining which sectors should receive different segments to minimize interference while maintaining overall system simplicity.
4Measurement precision
If different segments are allocated to neighboring sectors, then channel estimation accuracy improves, but segment allocation complexity increases
Solution Approach 1:
The patent manages complexity by systematically varying segment allocation parameters based on calculable proximity metrics rather than requiring complex manual configuration. The system changes segment assignments according to objective mathematical relationships between sectors, making the complexity manageable through algorithmic determination rather than arbitrary decisions.
Solution Approach 2:
The patent applies self-service by enabling the system to automatically determine optimal segment allocations based on its own knowledge of sector locations, distances, and interference characteristics. The network autonomously calculates proximity metrics and assigns segments without requiring external manual intervention, reducing operational complexity while maintaining high channel estimation accuracy.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An apparatus and method for allocations segments in a broadband wireless communication system is provided. Sector pairs are generated with respect to all sectors existing in different cells and the generated sector pairs are sorted according to priority based on a proximity. A sector pair having a top priority among unselected sector pairs is selected. Segments are allocated to all sectors of a cell including each sector of the selected sector pair. Accordingly, segments can be allocated to sectors while minimizing downlink throughput deterioration caused by segment duplication.