Wireless Resource Sharing Between Heterogeneous Networks
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Solution Overview
Problem
Current technologies face challenges in enabling fair and efficient wireless resource sharing between heterogeneous wireless networks, particularly in coexisting secondary networks without causing interference to primary users in TV white spaces and other RF spectrum bands.
Innovation Solution
A method and apparatus for managing wireless resource sharing, involving the receipt of coexistence values and spectral environment information from networks, generating resource allocations, and communicating these allocations to ensure fair usage and minimize interference, utilizing a coexistence manager that processes resource requests and spectrum data to facilitate dynamic allocation across heterogeneous networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple heterogeneous wireless networks share the same RF spectrum bands, then spectrum utilization efficiency is improved, but interference between networks increases
Solution Approach 1:
The patent introduces a coexistence manager as an intermediary entity that mediates resource allocation between heterogeneous wireless networks. The coexistence manager receives resource requests from multiple networks, evaluates their coexistence values, and makes centralized allocation decisions to optimize spectrum utilization while preventing interference, thus resolving the contradiction between improved productivity and reduced harmful factors.
Solution Approach 2:
The patent dynamically changes the allocation parameters (resource blocks, time slots, frequency channels) based on real-time spectral environment information and coexistence values. By adjusting these parameters adaptively, the system maximizes spectrum utilization efficiency while maintaining acceptable interference levels between networks.
2Ease of operation
If dynamic resource reallocation is implemented based on real-time spectral data, then fairness among networks is improved, but system complexity increases
Solution Approach 1:
The patent implements a self-service mechanism where each network autonomously calculates its own coexistence value based on its spectral environment information and service requirements. Networks submit these pre-calculated values to the coexistence manager, which simplifies the overall system complexity while maintaining fairness, as the computational burden is distributed rather than centralized.
Solution Approach 2:
The system employs feedback loops where spectral environment information is continuously monitored and fed back to the coexistence manager, which then adjusts resource allocations accordingly. This feedback mechanism ensures fairness among networks through dynamic reallocation while managing complexity by using standardized feedback channels and protocols.
3Ease of operation
If coexistence values are calculated and compared across networks, then resource allocation fairness is improved, but information processing requirements increase
Solution Approach 1:
The patent applies partial action by having the coexistence manager focus on evaluating only the most critical parameters from each network's spectral environment information, rather than processing all possible data. This selective evaluation approach maintains allocation fairness while reducing the overall information processing requirements and data volume that needs to be handled.
Data Source
AI summary
Method, apparatus, and computer program product embodiments are disclosed to provide for wireless resource sharing on a fair basis between heterogeneous wireless networks to enable coexistence in a TV band white space. An example embodiment of the invention includes a method, comprising the steps of: receiving a coexistence value associated with a wireless network; receiving radio frequency spectral environment information of the wireless network; receiving coexistence values and radio frequency spectral environment information of wireless networks neighboring the wireless network; receiving a resource request for the wireless network; generating a resource allocation based at least on the received coexistence values and received radio frequency spectral environment information; and communicating at least a portion of the generated resource allocation to the wireless network. The resulting embodiments provide for wireless resource sharing on a fair basis between heterogeneous wireless networks to enable coexistence of secondary networks.