Spectrum Sharing Reference Signal Coordination
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Solution Overview
Problem
Current wireless communications systems face challenges in efficiently sharing spectrum between mobile network operators, particularly in coordinating spectrum sharing among operators and their subscribed user equipment.
Innovation Solution
The proposed solution involves a method for wireless communications that enables spectrum sharing by allowing a first network entity to use secondary frequency resources of a second mobile network, while coordinating the transmission of reference signals on both frequency resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If spectrum sharing is enabled between multiple mobile network operators, then spectral efficiency and user throughput are improved, but coordination complexity and interference management become more difficult
Solution Approach 1:
The patent segments the frequency spectrum into different resource blocks and time slots, allowing multiple operators to share spectrum in a structured manner. The gNodeB divides available frequency resources into dedicated portions for each operator while enabling shared access during specific time periods, reducing coordination complexity through systematic partitioning.
Solution Approach 2:
The patent implements preliminary actions by having the gNodeB transmit reference signals before actual data transmission. These reference signals enable user equipment to measure channel conditions and determine appropriate reception parameters in advance, facilitating smoother spectrum sharing and reducing real-time coordination complexity.
2Ease of operation
If reference signals are transmitted on secondary frequency resources, then initial access and random access procedures are facilitated, but signal interference and measurement accuracy challenges increase
Solution Approach 1:
The patent uses reference signals as intermediary elements that mediate between different operators' frequency resources. These reference signals serve as common measurement benchmarks that user equipment can reliably detect and measure, enabling initial access procedures while providing a foundation for accurate channel condition assessment despite the presence of multiple operators.
Solution Approach 2:
The gNodeB transmits reference signals on secondary frequency resources before actual communication begins. This preliminary transmission allows user equipment to measure channel conditions and configure reception parameters in advance, facilitating initial access procedures while establishing a baseline for accurate signal measurement that accounts for interference from multiple operators.
Data Source
AI summary
Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for measurement and initial access for sharing spectrum between mobile network operators.