Base Station Scheduling for Adjacent Band Interference Avoidance
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Solution Overview
Problem
In mobile communications, interference occurs when user equipment (UE) uses one system on a frequency band and another system on an adjacent frequency band, leading to conflicts in message reception and transmission between different communication systems.
Innovation Solution
A scheduling method where a base station receives an indication of interference from the UE and generates temporary scheduling information to avoid overlapping scheduling times with the second system, allowing the UE to receive data from the second system without conflicting with the first system's scheduling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the base station schedules the UE continuously without interruption, then the productivity of the first system is improved, but the UE cannot receive data from the second system due to interference
Solution Approach 1:
The base station implements periodic scheduling interruptions by sending notification signals to the UE at specific time points, allowing the UE to pause receiving data from the first system and switch to receive data from the second system. This periodic action pattern enables both systems to operate without permanent conflict.
Solution Approach 2:
The scheduling mechanism dynamically adjusts between normal scheduling mode and interrupted scheduling mode based on real-time conditions. The base station determines whether to send notification signals based on current service conditions, making the scheduling flexible and adaptive rather than fixed.
2Adaptability or versatility
If the base station sends frequent notification signals to interrupt scheduling, then the adaptability to second system reception is improved, but the loss of time for scheduling operations increases
Solution Approach 1:
The base station sends notification signals in advance before the UE needs to switch systems. By predicting when the UE will need to receive data from the second system, the base station proactively interrupts scheduling at optimal moments, minimizing disruption to overall scheduling efficiency while ensuring timely system switching.
3Reliability
If the base station modifies scheduling information based on service conditions, then the reliability of service delivery is improved, but the device complexity increases
Solution Approach 1:
The base station monitors service conditions and uses this feedback to determine when to send notification signals. By continuously observing system state and adjusting scheduling decisions based on this feedback, the base station maintains reliable service delivery while keeping the control logic manageable through condition-based decision making.
Data Source
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AI summary
The present invention discloses a scheduling method and a device, which may avoid a conflict between scheduling performed by a first system on a UE and using, by the UE, a second system on a frequency band adjacent to a frequency band of the first system, such as receiving or sending, by the UE, data or a message of the second system. In this way, the problem of mutual interference in message reception and transmission that are performed by the UE in two systems on adjacent frequency bands is solved. The scheduling method provided in an embodiment of the present invention includes the following: receiving, by a base station in a first system, a first indication sent by a user equipment UE, where the first indication indicates that interference exists between the first system and a second system; generating, by the base station, temporary scheduling information, and sending the temporary scheduling information to the UE; and scheduling, by the base station, the UE according to the temporary scheduling information, where the time at which the base station schedules the UE according to the temporary scheduling information does not overlap the time at which the UE receives data from the second system.