Frequency Band Scheduling for Overlapping NR-LTE Interference
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Solution Overview
Problem
Existing interference detection and circumvention techniques for overlapping frequency bands in wireless communication systems like NR and LTE are limited, leading to low spectrum utilization and impaired transmission performance.
Innovation Solution
A frequency band scheduling method that dynamically adjusts available frequency bands based on real-time interference strength or weakness by dividing frequency bands into interference-free and interference bands, using channel state information for measurement and configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequency hopping is performed to avoid interference and improve reliability, then communication reliability is improved, but uplink and downlink communication cannot be performed simultaneously
Solution Approach 1:
The patent implements dynamic frequency selection where the second communication node dynamically chooses between frequency hopping and non-frequency hopping modes based on channel conditions and communication requirements. This allows the system to adaptively switch between reliability-focused and productivity-focused operation, resolving the contradiction between communication reliability and simultaneous communication capability.
Solution Approach 2:
The patent changes the frequency hopping parameter (whether to perform frequency hopping or not) based on different communication scenarios. By controlling the frequency hopping behavior of the second communication node, the system can achieve both high reliability when needed and simultaneous uplink-downlink communication when channel conditions permit, thus resolving the technical contradiction.
2Reliability
If the second communication node performs frequency hopping to avoid interference, then communication reliability is improved, but the node cannot determine whether to hop frequencies
Solution Approach 1:
The patent implements a feedback mechanism where the first communication node sends indication information to the second communication node, guiding whether the second node should perform frequency hopping. This feedback loop enables the second node to make informed frequency hopping decisions based on overall channel conditions and system requirements, resolving the contradiction between improving reliability through frequency hopping and maintaining ease of operation.
Solution Approach 2:
The first communication node acts as an intermediary that provides frequency hopping guidance to the second communication node. This intermediary mechanism allows the second node to benefit from frequency hopping for reliability improvement without needing to independently determine hopping parameters, thus maintaining ease of operation while achieving communication reliability.
3Ease of operation
If the first communication node sends indication information to guide frequency hopping, then the second node can determine whether to hop frequencies, but signaling overhead increases
Solution Approach 1:
The patent applies partial action by sending frequency hopping indication information only when necessary (e.g., when channel conditions require frequency hopping or when avoiding collisions), rather than continuously. This reduces signaling overhead while still providing the second communication node with the needed guidance to make frequency hopping decisions, resolving the contradiction between ease of operation and signaling overhead.
Data Source
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AI summary
Provided are a frequency band scheduling method, a communication node, and a computer-readable storage medium. The method includes that: a reference frequency band and at least one detection frequency band are acquired, where the reference frequency band is a frequency band in which a first system does not interfere with a second system, and the at least one detection frequency band is a frequency band in which the first system and the second system interfere with each other; frequency band configuration information is sent to a terminal device, where the frequency band configuration information includes configuration information of the reference frequency band and configuration information of all detection frequency bands; frequency band measurement information that the terminal device sends according to the frequency band configuration information is received, where the frequency band measurement information includes measurement information of the reference frequency band and measurement information of the all detection frequency bands; and an available frequency band of the terminal device is determined according to the frequency band measurement information.