CSI Scheduling in CoMP Networks for Periodic Traffic
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Solution Overview
Problem
In Coordinated Multipoint (CoMP) networks, existing protocols face challenges in efficiently scheduling Channel State Information (CSI) processes in association with periodic traffic, which is critical for maintaining reliable communication, especially in mission-critical applications like factory automation where delays can lead to catastrophic failures.
Innovation Solution
A transmission reception point (TRP) determines the periodicity of periodic traffic and schedules the CSI process in advance of the next traffic window, allowing for resource allocation optimization, and optionally includes an intra-window supplemental CSI process to ensure timely feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If CSI processes are scheduled dynamically without advance planning, then scheduling flexibility is maintained, but reliability and timing consistency deteriorate for periodic traffic
Solution Approach 1:
The patent applies preliminary action by determining the periodicity of periodic traffic and scheduling the CSI process in advance of the next traffic window. This advance scheduling ensures that CSI processes are allocated predetermined time-frequency resources before the actual transmission occurs, guaranteeing timing consistency and reliability for periodic traffic while avoiding last-minute scheduling conflicts.
2Productivity
If CSI processes are scheduled in advance for periodic traffic, then resource allocation efficiency is improved, but scheduling flexibility for dynamic traffic is reduced
Solution Approach 1:
The patent segments the scheduling approach into two distinct parts: (1) advance scheduling of CSI processes for periodic traffic with predetermined periodicity, and (2) dynamic scheduling capability for other traffic types. This segmentation allows resource allocation optimization for periodic traffic while preserving scheduling flexibility for dynamic and unpredictable traffic patterns.
Solution Approach 2:
The patent implements a hybrid scheduling mechanism that combines static advance scheduling for periodic CSI processes with dynamic scheduling capabilities. The system dynamically determines periodicity for periodic traffic and maintains the ability to adapt to changing traffic conditions, thus balancing resource allocation efficiency with scheduling flexibility.
3Loss of energy
If CSI processes are scheduled without considering traffic periodicity, then scheduling simplicity is maintained, but resource overhead increases due to inefficient allocation
Solution Approach 1:
The patent changes the scheduling parameter from ad-hoc individual scheduling to periodic scheduling based on determined traffic periodicity. By identifying and utilizing the periodic nature of traffic patterns, the system optimizes resource allocation to match actual traffic demands, reducing resource overhead while maintaining manageable scheduling complexity through the regularity of periodic allocations.
Data Source
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AI summary
In an embodiment, a transmission reception point (TRP) apparatus of a Coordinated Multipoint (CoMP) network, determines a periodicity of periodic traffic between the TRP apparatus and a user equipment (UE), and schedules a Channel State Information (CSI) process in advance of a traffic window for a next instance of the periodic traffic in accordance with the determined periodicity. In another embodiment, the UE of the CoMP network performs the CSI process in advance of the traffic window for the next instance of periodic traffic between the UE and the TRP apparatus, the CSI process being scheduled in accordance with the determined periodicity of the periodic traffic.