Traffic Profile-Based Resource Allocation in Wireless Networks
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Solution Overview
Problem
Current resource allocation techniques in wireless telecommunications networks are inefficient due to diverse traffic characteristics of applications, leading to unnecessary resource allocation and power consumption, as they do not account for the varying activity patterns of user equipment.
Innovation Solution
A method to determine and provide a traffic profile to the network, which characterizes the timing and size of data packets, allowing for optimized resource allocation by matching resource allocation to the expected traffic patterns, including configuring discontinuous reception to conserve battery power and efficiently manage radio resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If resources are allocated continuously to support communication between user equipment and base station, then communication reliability is improved, but resource waste increases due to allocation during periods when no traffic occurs
Solution Approach 1:
The patent implements discontinuous reception (DRx) where the user equipment periodically wakes up to check for downlink data and enters sleep mode during periods with no traffic. This periodic action allows the system to maintain communication reliability by being available when needed while reducing resource waste by entering low-power state during idle periods.
Solution Approach 2:
The patent dynamically adjusts the DRx cycle length and resource allocation based on the observed traffic profile of the application. When traffic is detected, the system transitions to active communication mode; when traffic ceases, it transitions to sleep mode. This dynamic adaptation resolves the contradiction between maintaining reliability and reducing resource waste.
2Adaptability or versatility
If user equipment maintains continuous radio resource connection for diverse applications, then service availability is improved, but power consumption increases unnecessarily
Solution Approach 1:
The user equipment uses discontinuous reception with periodic wake-up intervals to check for incoming data. This allows the device to maintain service availability by periodically checking for traffic while significantly reducing power consumption compared to continuous monitoring. The periodic action enables the device to sleep during idle periods while remaining responsive when data arrives.
Solution Approach 2:
The system changes operational parameters (DRx cycle length, resource allocation) based on the traffic profile of different applications. For applications with long idle periods, longer DRx cycles are used to minimize power consumption while maintaining availability. This parameter adaptation resolves the contradiction between service availability and power consumption.
3Device complexity
If resources are allocated based on generic resource management techniques, then system simplicity is maintained, but resource allocation efficiency deteriorates due to inability to match traffic characteristics
Solution Approach 1:
The system performs preliminary traffic profiling by monitoring and characterizing the traffic patterns of applications before optimizing resource allocation. This preliminary action captures the traffic profile (inter-arrival times, data rates) which is then used to configure appropriate DRx parameters and resource allocation strategies, improving efficiency without requiring complex real-time analysis.
Solution Approach 2:
The user equipment itself provides traffic profile information to the network, enabling the network to allocate resources efficiently. Rather than requiring the network to complexly analyze traffic patterns, the device self-identifies its traffic characteristics and communicates them to the network, which then uses this information for optimized resource allocation. This self-service approach improves efficiency while maintaining system simplicity.
Data Source
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AI summary
A method of facilitating allocation of resources to support communication between user equipment and a base station of a wireless telecommunications network, user equipment, a method of allocating resources to support communication between user equipment and a base station of a wireless telecommunications network, a base station and computer program products are disclosed. The method of facilitating allocation of resources to support communication between a user equipment and a base station of a wireless telecommunications network comprises the steps of: determining a traffic profile, the traffic profile characterising timing of traffic comprised of data packets transmitted between the user equipment and the base station due to an application being executed by the user equipment; and providing the traffic profile to the base station for use when allocating the resources to support communication between the user equipment and the base station during execution of the application. In this way, the particular traffic characteristics of the user equipment can be estimated and provided to the network in order to assist the network when determining how best to allocate resources to support the user equipment. This enables the network to better match the resources allocated to the likely traffic profile of the user equipment. This helps to better match the resource allocation to the user equipment to avoid periods when resources are allocated but no traffic occurs or when traffic is available but the resources are.