Wireless Resource Allocation for High Power Devices
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Solution Overview
Problem
High power wireless devices in wireless networks may not require additional resources assigned by conventional schedulers, leading to inefficient resource allocation, as they often benefit from favorable treatment despite not providing substantial enhanced service due to quality of service requirements.
Innovation Solution
An access node determines the quality of service metric for high power wireless devices and reduces their reported power headroom to assign default modulation and coding schemes, treating them as default devices when their quality of service metric does not meet specific criteria, thereby balancing network load and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional schedulers assign additional resources to high power wireless devices, then the devices can transmit at higher power levels, but wireless resource efficiency deteriorates because the devices do not require the additional resources
Solution Approach 1:
The system changes the parameter treatment of high power wireless devices by applying power headroom reduction based on QoS class indicators. When a device's QCI indicates it does not require enhanced service, the system reduces its reported power headroom, which prevents the scheduler from allocating excessive resources. This parameter adjustment resolves the contradiction by allowing high power transmission while preventing wasteful resource allocation.
2Reliability
If conventional schedulers assign resources based on power capability, then high power devices can maintain transmission quality, but network load balancing deteriorates due to over-allocation of resources
Solution Approach 1:
The system introduces dynamic parameter modification by reducing power headroom reports for high power devices whose QoS requirements do not justify enhanced resource allocation. This causes the scheduler to treat these devices as default power devices, achieving proper network load balancing while maintaining adequate transmission quality through appropriate resource allocation.
Solution Approach 2:
The system uses QoS class indicator feedback to determine whether high power wireless devices require enhanced resource allocation. Based on this feedback mechanism, the access node selectively applies power headroom reduction, ensuring that transmission quality is maintained for devices that need it while preventing over-allocation for devices that do not require enhanced service.
Data Source
AI summary
Systems and methods are described for assigning wireless resources to a high power wireless device. In some embodiments, a quality of service metric used for communication between a wireless device and an access node is identified, wherein the wireless device is configured to transmit an uplink signal at a first signal level that meets a power criteria. Default uplink resource are assigned to the wireless device based on the identified quality of service criteria, wherein the default uplink resources are associated with a default wireless device configured to transmit an uplink signal at a second signal level that does not meet the power criteria. And uplink communication is received at the access node from the wireless device using the assigned default uplink resources.