Radar-Coexistence Resource Scheduling for User Equipment
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Solution Overview
Problem
Existing communication systems face interference between radar signals used for sensing and data communication, necessitating methods to minimize interference and optimize resource utilization.
Innovation Solution
User equipment and base stations measure radar signals to identify unused data resources by generating time and frequency measurement information, allowing for coordinated data communication without disrupting radar sensing operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If radar and data communication share the same time-frequency resources, then resource utilization is improved, but interference between radar signal and data signal increases
Solution Approach 1:
The patent segments the time-frequency resource into radar periods and data periods, with guard periods in between. The time axis is divided into multiple radar periods where radar signals are transmitted, and data periods where data communication occurs, preventing overlap and reducing interference while maintaining resource sharing efficiency
Solution Approach 2:
The guard period acts as an intermediary buffer between radar periods and data periods. This intermediary time slot allows the system to transition between radar and data communication modes, preventing direct interference while enabling both functions to share the same spectrum resources
2Object-affected harmful factors
If guard period is increased to minimize interference, then interference reduction is improved, but available data transmission time is reduced
Solution Approach 1:
The patent dynamically adjusts the guard period length based on the detected radar signal characteristics. The base station measures radar signal parameters (strength, frequency, timing) and adapts the guard period duration accordingly, minimizing unnecessary time loss while ensuring sufficient protection against interference when needed
Data Source
AI summary
A method of operating a user equipment, includes: generating time measurement information about a plurality of radar periods in which a radar signal is received on a first frequency band, by measuring the radar signal transmitted from a radar; reporting the time measurement information to a base station; receiving, from the base station, control information based on the time measurement information; identifying, based on the control information, a first data resource included in a data period, which is unused by the radar, between the plurality of radar periods; and performing data communication with the base station based on the first data resource.