Wireless Access Node Dynamic Subchannel Allocation
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Solution Overview
Problem
Current wireless communication networks inefficiently utilize radio channels, leading to wasted spectral resources due to a primitive interface between wireless network slices and radio channels, which hampers effective service delivery to user devices.
Innovation Solution
The method involves determining and scheduling resource blocks within subchannels for wireless network slices based on usage, allowing for efficient allocation and re-sizing of subchannels based on time-of-day, enabling effective utilization of radio channels for serving wireless communication devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If radio channels are allocated into fixed subchannels for wireless network slices, then network slice isolation is achieved, but spectral resource utilization deteriorates due to wasted resources when demand varies
Solution Approach 1:
The patent implements dynamic subchannel allocation where the network controller continuously monitors resource usage patterns and adjusts subchannel assignments in real-time. This allows the system to maintain network slice isolation while adapting spectral resource distribution to actual demand, preventing both over-provisioning and under-provisioning of resources for different network slices.
Solution Approach 2:
The system changes the parameter of subchannel allocation from fixed to variable based on usage patterns. The network controller modifies allocation parameters dynamically, adjusting the number and size of subchannels assigned to each network slice according to real-time traffic conditions, thereby optimizing spectral efficiency while maintaining isolation guarantees.
2Device complexity
If static resource block allocation is used for network slices, then implementation complexity is reduced, but service delivery efficiency deteriorates when traffic patterns vary throughout the day
Solution Approach 1:
The network controller performs preliminary actions by analyzing historical traffic patterns and predicting future resource requirements. This allows the system to proactively adjust subchannel allocations before traffic peaks occur, optimizing service delivery efficiency without requiring complex real-time reconfiguration during high-traffic periods.
Solution Approach 2:
The system implements self-service through automated resource allocation algorithms that monitor traffic conditions and adjust subchannel assignments without manual intervention. This maintains relatively simple implementation while achieving high service delivery efficiency through adaptive resource management that responds automatically to changing traffic patterns.
3Ease of operation
If uniform subchannel allocation is applied to all network slices, then allocation simplicity is maintained, but resource optimization deteriorates due to varying usage patterns across different services
Solution Approach 1:
The patent applies local quality by assigning different subchannel allocation characteristics to different network slices based on their specific service requirements. Each network slice receives customized resource allocation tailored to its usage patterns, allowing the system to maintain operational simplicity through automated differentiation rather than complex manual configuration.
Data Source
AI summary
A wireless access node serves wireless communication devices over a radio channel that is allocated into subchannels for wireless network slices. The wireless access node determines the wireless network slices used by the wireless communication devices. The wireless access node schedules resource blocks in the subchannels for the wireless network slices to the wireless communication devices based on the wireless network slices used by the wireless communication devices. The wireless access node wirelessly exchanges user data with the wireless communication devices over the scheduled resource blocks in the subchannels for the wireless network slices. The wireless access node re-sizes the subchannels for the wireless network slices based on time-of-day.