Dynamic Frequency Resource Sharing in Wireless Base Stations
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently sharing frequency resources between base stations operated by different mobile network operators, particularly in scenarios where the available frequency resources are scarce and not fully utilized.
Innovation Solution
A method where a first base station transmits instructions to channel measurement target terminals to send signals for channel measurement to a second base station, allowing the second base station to measure channels and determine a shared frequency resource based on the measurement information, which is then shared with the first base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If frequency resources are allocated exclusively to each base station operated by different operators, then each base station can guarantee its own service quality, but frequency resources cannot be fully utilized and network efficiency is reduced
Solution Approach 1:
The patent implements dynamic frequency resource sharing where base stations can switch between exclusive and shared usage modes based on real-time channel conditions and traffic demands. The network management system dynamically allocates frequency resources, allowing base stations to transition from static exclusive allocation to flexible dynamic sharing, thereby improving overall network efficiency while maintaining service quality through adaptive control.
Solution Approach 2:
The patent changes the allocation parameters of frequency resources from fixed operator-specific assignments to dynamic parameters that can be adjusted based on channel measurement results, traffic load, and interference levels. By modifying these allocation parameters adaptively, the system achieves better resource utilization while preserving service quality guarantees through parameter-based control mechanisms.
2Productivity
If frequency resources are shared between base stations operated by different operators, then resource utilization is improved, but interference between base stations increases
Solution Approach 1:
The patent implements a feedback mechanism where channel measurement results are continuously collected and used to adjust frequency resource allocation decisions. Base stations report channel quality indicators back to the network management system, which uses this feedback information to dynamically determine optimal sharing configurations, thereby maximizing resource utilization while keeping interference within acceptable limits through closed-loop control.
Solution Approach 2:
The patent performs preliminary channel measurements and interference assessments before finalizing frequency resource sharing decisions. By conducting advance measurements of channel conditions and potential interference levels, the system can pre-evaluate suitable sharing configurations and select optimal allocations that balance resource utilization with interference control, preventing harmful interference before it occurs.
3Measurement precision
If channel measurement is performed extensively to determine optimal shared frequency resources, then resource allocation accuracy is improved, but measurement time and system complexity increase
Solution Approach 1:
The patent applies partial measurement action by selecting only representative terminals for channel measurements rather than measuring all terminals comprehensively. The network management system identifies key measurement targets based on traffic patterns and channel conditions, performing measurements on a selective subset that provides sufficient information for accurate resource allocation decisions, thereby reducing measurement time while maintaining adequate allocation accuracy.
Solution Approach 2:
The patent segments the channel measurement process into multiple stages or layers, performing coarse measurements first to identify promising frequency resources, then conducting finer measurements only on selected candidates. This segmented approach divides the measurement task into manageable parts, reducing overall measurement time while achieving sufficient precision through hierarchical measurement strategies.
Data Source
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AI summary
A method, performed by a first base station, includes transmitting, to channel measurement target terminals determined from among terminals communicating with the first base station using first frequency resources, information instructing to transmit a signal for channel measurement to the second base station; transmitting, to the second base station, information indicating that the signal for channel measurement is to be transmitted from the channel measurement target terminals; receiving, from the second base station, measurement information about channels between the second base station and the channel measurement target terminals; determining a shared frequency resource to be shared with the second base station from among the first frequency resources, based on the measurement information about the channels between the second base station and the channel measurement target terminals; and transmitting information about the shared frequency resource to the second base station.