Staggered Compressed Mode Scheduling for Wireless Interference Mitigation
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Solution Overview
Problem
In cellular telecommunications networks, the SF/2 method for compressed mode in user equipment (UEs) increases interference within and between cells due to sudden power level changes during data compression, leading to cascading interference effects when multiple UEs enter compressed mode in close succession.
Innovation Solution
A management server coordinates the scheduling of compressed mode time slots across multiple cells to maximize the time distance between UE entries into compressed mode, ensuring that UEs in different cells enter compressed mode at staggered times within a predetermined period, thereby minimizing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the SF/2 method is used to compress data before and after scheduled time gaps in compressed mode, then data loss is prevented during measurements, but transmission power levels increase causing increased interference to UEs within the same cell or in neighboring cells
Solution Approach 1:
The system segments the compressed mode entries of different UEs into separate time slots. The management server schedules time gaps for multiple UEs such that they do not enter compressed mode simultaneously, but rather in a staggered manner. This temporal segmentation prevents the simultaneous power level increases that cause cascading interference, while still allowing each UE to perform measurements without data loss.
2Productivity
If multiple UEs enter compressed mode in close succession, then measurement opportunities are maximized, but cascading interference effects occur due to successive power level changes
Solution Approach 1:
The management server implements a periodic scheduling mechanism that distributes compressed mode entries across different time slots for multiple UEs. By establishing regular time patterns and staggering the compressed mode entries, the system maintains high measurement efficiency while preventing the successive power level changes that lead to cascading interference effects.
Data Source
AI summary
This application pertains to systems, apparatus and methods for decreasing interference in wireless networks caused by User Equipments (UEs) entering compressed mode. Under certain generally accepted communication protocols, a UE can transmit at a higher power relative to normal transmissions when it enters compressed mode. These high power transmissions can cause interference both for UEs within the same cell (e.g., small cells or macrocells) as well as for UEs in neighboring cells. This interference can be minimized by using the presently disclosed systems, apparatus and methods to schedule time slots for UEs to go into compressed mode such that the distance in time between any two UEs going into compressed mode across one or more neighboring cells is maximized. By spreading out the interference effect of UEs going into compressed mode over time, overall interference in the wireless network can be decreased.