Dynamic Control Channel Resource Allocation in Mobile Networks
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Solution Overview
Problem
Current resource allocation schemes for control channels in mobile networks are either inflexible and inefficient, such as in Wi-Fi networks, or static and unable to adapt to changing conditions, like in LTE networks, leading to high control overhead and suboptimal resource utilization.
Innovation Solution
A method and network node for dynamic resource allocation that monitors control channel load, adjusts the number of control channels based on load status, and allocates resources efficiently by determining the required number of control channels and resource elements per channel, considering factors like maximum failure rate, delay, and collision probability, while also aligning with neighboring nodes to avoid interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If contention based resource allocation is used (as in Wi-Fi networks), then resource sharing between control channels and data transmission is improved, but control overhead increases and resource utilization efficiency deteriorates
Solution Approach 1:
The patent segments the resource allocation into separate control channel resources and data transmission resources. Control channels are allocated specific resource elements independently from data resources, preventing control overhead from consuming data transmission capacity. This segmentation allows efficient monitoring of control channel load and dynamic adjustment without affecting data resources.
Solution Approach 2:
The patent implements dynamic resource allocation where the number of control channels and resource elements per control channel are adjusted based on monitored load conditions. The system transitions from static allocation to dynamic adjustment, increasing control channels when load is high and decreasing when load is low, optimizing both control overhead and resource utilization efficiency in real-time.
2Device complexity
If scheduling based resource allocation is used (as in LTE networks), then resource allocation structure is improved, but adaptability to changing network conditions deteriorates
Solution Approach 1:
The patent introduces a feedback mechanism where the network node continuously monitors control channel load conditions and uses this feedback to dynamically adjust the number of control channels and resource elements allocated. This closed-loop control enables the system to adapt to changing network conditions while maintaining a structured resource allocation framework.
Solution Approach 2:
The patent changes the parameters of resource allocation dynamically based on network conditions. The number of control channels and resource elements per channel are adjusted as variables rather than fixed values, allowing the system to maintain structural organization while adapting flexibly to varying load conditions through parameter modification.
3Quantity of substance
If the number of control channels is increased to handle high load, then control channel capacity is improved, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent makes the number of control channels dynamic rather than static. The system monitors control channel load and adjusts the number of channels in real-time, increasing capacity when needed and reducing it when load decreases. This dynamic adjustment ensures optimal resource utilization efficiency while maintaining adequate control channel capacity to handle varying network loads.
4Ease of manufacture
If static resource allocation is used, then implementation simplicity is improved, but flexibility in adapting to load changes deteriorates
Solution Approach 1:
The patent implements a self-service mechanism where the network node autonomously monitors its own control channel load and automatically adjusts resource allocation without external intervention. This self-monitoring and self-adjusting capability provides flexibility in adapting to load changes while keeping the implementation relatively simple, as the system manages its own resource allocation dynamically.
Data Source
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AI summary
The present disclosure provides a method (300) in a network node for dynamic resource allocation for control channels. The method (300) comprises: monitoring (S310) a control channel load on the network node; and adjusting (S320) resource allocation for control channels based on the control channel load.