Cellular Network Resource Allocation for UE Collision Reduction
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Solution Overview
Problem
The increasing traffic on cellular network radio interfaces due to a growing number of communication devices leads to higher collision likelihoods with shared recurring resources, increasing latency and reducing user experience.
Innovation Solution
The solution involves allocating distinct recurring resources on a radio interface for different sets of communication devices based on classification criteria such as capabilities and traffic patterns, allowing flexible scheduling and minimizing collision likelihoods by grouping UEs appropriately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If shared recurring resources are allocated to handle increasing traffic from a growing number of UEs, then the network can accommodate more devices, but the likelihood of collisions increases
Solution Approach 1:
The patent segments the set of UEs into multiple groups based on classification criteria (e.g., traffic patterns, device capabilities). Each group is assigned dedicated recurring resources instead of all UEs sharing the same resources. This segmentation reduces the number of UEs competing for the same resources, thereby reducing collision likelihood while maintaining the ability to serve a large total number of UEs.
2Productivity
If shared recurring resources are used for multiple UEs, then resource utilization is improved, but latency increases due to collisions and control signaling
Solution Approach 1:
By segmenting UEs into groups with dedicated recurring resources, the patent reduces collisions and the associated retransmissions and control signaling. This maintains efficient resource utilization across the network while reducing transmission latency for individual UEs, as they face fewer conflicts when accessing their designated resources.
3Reliability
If distinct recurring resources are allocated for different sets of UEs, then collision likelihood is reduced, but device complexity increases due to set classification and resource management
Solution Approach 1:
The patent performs preliminary classification of UEs into sets based on their characteristics (traffic patterns, device capabilities) before resource allocation. This preliminary action allows the network to pre-assign appropriate recurring resources to each set, reducing real-time scheduling complexity while maintaining low collision rates. The classification and resource assignment are established in advance, simplifying ongoing resource management.
Data Source
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AI summary
First reoccurring resources on a radio interface of a cellular network (100) are allocated and shared between communication devices (121-125) assigned to a first set (151). Second reoccurring resources on the radio interface are allocated and shared between communication devices (121-125) assigned to a second set (152). A control message is sent, the control message indicating the first reoccurring resources and the second reoccurring resources. The control message may optionally be sent employing a broadcast transmission (110).