Micro Base Station Activation for Accurate Signal Measurement
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Solution Overview
Problem
In heterogeneous cellular networks, micro base stations often incorrectly determine signal strength due to sparse synchronization signals, leading to inefficient resource allocation and interference issues.
Innovation Solution
A method and apparatus where a first base station receives measurement results from user equipment, determines the need for a handover operation, and instructs the second base station to start up, ensuring accurate signal strength measurement and reducing unnecessary resource waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If periodic sending of DRS signal is adopted to detect micro base station signal, then UE can determine signal strength of micro base station, but measurement precision deteriorates due to sparse synchronization signal in time domain
Solution Approach 1:
The macro base station performs preliminary measurement of the micro base station signal using its own receiving unit before the UE needs to connect. This preliminary measurement includes obtaining reference signal received power and reference signal received quality of the micro base station, and determining whether the micro base station can provide service based on these measurements. This preliminary action resolves the contradiction by providing reliable measurement data in advance, eliminating the need for sparse periodic DRS signals while ensuring both measurement precision and reliability.
2Use of energy by moving object
If micro base station is disabled to reduce power consumption, then energy efficiency improves, but signal coverage and service availability deteriorate
Solution Approach 1:
The system implements feedback mechanism where the macro base station continuously measures the micro base station signal strength and quality, and uses this feedback information to dynamically control the micro base station's operational state. The macro base station determines whether the micro base station should be activated based on real-time channel conditions and service requirements. This feedback loop resolves the contradiction by ensuring the micro base station is activated only when needed, optimizing energy efficiency while maintaining service availability through intelligent control based on measured signal conditions.
3Object-affected harmful factors
If micro base station is disabled to reduce interference to neighboring cells, then interference levels decrease, but service coverage and handover capability deteriorate
Solution Approach 1:
The system dynamically adjusts the micro base station's operational state based on real-time conditions. The macro base station measures the micro base station signal periodically and determines activation based on current service needs and channel conditions. This dynamic approach resolves the contradiction by allowing the micro base station to be disabled during low-traffic periods (reducing interference) while being quickly activated when service or handover is needed (maintaining adaptability). The system transitions between states based on measured reference signal quality and service requirements.
Data Source
AI summary
A method and an apparatus for assisting a terminal in measuring are provided, which relate to the field of communications network technologies and may implement correct measurement on signal strength of a micro base station, thereby preventing UE from incorrectly determining the signal strength of the micro base station. In embodiments of the present invention, a first base station receives a measurement result for a second base station sent by UE, where the first base station provides a service for the UE; the first base station determines, according to the measurement result, whether a handover operation needs to be started; when the handover operation needs to be started, the first base station instructs the second base station to start up, and hands over the UE to the second base station for a service provided by the second base station.