Coexistence Base Station Interference Status Collection
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Solution Overview
Problem
Coexistence base stations struggle to determine which neighbor base station is interfering with subscriber stations, leading to inefficient resource allocation and delayed updates in interference status information, which affects communication quality and resource management.
Innovation Solution
Subscriber stations report their interference status directly to the coexistence base station during initialization, including unique identifier information of interfering neighbor base stations, allowing timely updates in the coexistence database and optimizing air interface resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the base station continuously queries interference status information of subscriber stations, then the interference status information can be obtained, but the base station cannot determine which neighbor base station is causing the interference and air interface resources are wasted
Solution Approach 1:
The patent implements a feedback mechanism where subscriber stations actively report interference status information including the unique identifier of the interfering neighbor base station to the serving base station. This feedback approach transforms the passive querying system into an active reporting system, enabling the base station to immediately identify interference sources without continuous queries, thus resolving the contradiction between information completeness and time efficiency.
Solution Approach 2:
The subscriber station performs self-detection of interference by monitoring received signals from neighbor base stations and autonomously generates interference status reports containing the unique identifier of the interfering base station. This self-service mechanism eliminates the need for the base station to continuously query each subscriber station, saving air interface resources while maintaining accurate and timely interference information.
2Reliability
If the base station updates interference status information frequently, then the information remains current, but air interface resources are consumed
Solution Approach 1:
The patent implements periodic broadcasting by neighbor base stations of their unique identifier information to subscriber stations in the overlap area. This periodic action ensures that subscriber stations have up-to-date information about active neighbor base stations, enabling them to accurately report interference status only when necessary, thus maintaining information reliability while reducing unnecessary air interface resource consumption compared to continuous updates.
3Object-affected harmful factors
If transceiving synchronization is guaranteed among base stations, then interference between base stations is avoided, but the system complexity increases due to rigid frame timing alignment requirements
Solution Approach 1:
The patent introduces a coexistence database as an intermediary component that stores and manages information about neighbor base stations including their unique identifiers and frame timing information. This database acts as a mediator that coordinates the operations of different base stations, enabling them to avoid mutual interference through informed scheduling decisions without requiring complex real-time synchronization protocols, thus reducing system complexity while maintaining interference avoidance.
Data Source
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AI summary
A method and system for co-exist BS collecting interfered status information of terminal. The present invention mainly comprises: after terminal in overlap area of adjacent station received the broadcast connection message, the terminal transmits report message, includes the interfered status information, to belonged co-exist BS; the co-exist BS collects and saves the interfered status information of terminal according to the received report message. With the present invention, the co-exist BS can collect the interfered status information of all the appendent terminal in time during the adjacent station initiation, and update and save the collected information into co-exist database.