Wireless Device Power-Aware Radio Resource Allocation
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Solution Overview
Problem
Current wireless communication networks, particularly for Machine-to-Machine (M2M) and Internet of Things (IoT) devices, face performance degradation due to suboptimal radio resource allocation, especially in scenarios where network nodes have limited knowledge of user equipment conditions, leading to increased power consumption and interference.
Innovation Solution
A method where wireless communication devices obtain information on power consumption and performance metrics such as path loss and interference, and send indication parameters to network nodes to influence radio resource configuration, opting for single-tone transmission over multi-tone when load and interference are higher, thereby improving resource allocation and device performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If network nodes allocate radio resources based on limited knowledge of device conditions, then resource allocation can be simplified, but device performance deteriorates and power consumption increases
Solution Approach 1:
The patent implements feedback by having wireless communication devices measure their own performance metrics (power consumption, path loss, interference, signal quality) and report these measurements to the network node. This enables the network node to make informed resource allocation decisions based on actual device conditions rather than limited knowledge, thereby improving device performance while maintaining relatively simple network node architecture.
Solution Approach 2:
The patent applies self-service by enabling devices to autonomously measure their own performance parameters and generate capability indicators without requiring complex network node analysis. The device performs self-assessment of its radio resource usage efficiency and communicates this information to the network, allowing the system to optimize resource allocation based on device-generated data rather than network-side monitoring.
2Productivity
If devices use multi-tone transmission to improve data rate, then productivity increases, but interference and power consumption increase
Solution Approach 1:
The patent implements dynamics by making the transmission mode (single-tone vs. multi-tone) adaptive rather than fixed. The device dynamically selects the transmission mode based on real-time channel conditions, interference levels, and performance requirements. The network node allocates different types of radio resources (single-tone or multi-tone) based on the capability indicators reported by devices, allowing the system to optimize between data rate and interference on a per-device, per-time basis.
3Measurement precision
If devices report detailed capability information to network nodes, then resource allocation accuracy improves, but signaling overhead increases
Solution Approach 1:
The patent applies the extraction principle by having devices report only the most relevant capability indicators needed for resource allocation decisions, rather than transmitting complete device state information. The device extracts and reports key metrics such as power consumption levels, path loss measurements, interference observations, and signal quality indicators. This selective reporting provides the network node with sufficient information for accurate resource allocation while minimizing signaling overhead.
4Reliability
If devices operate with higher power consumption to improve signal quality, then reliability improves, but energy efficiency deteriorates
Solution Approach 1:
The patent applies parameter changes by having the network node adjust radio resource parameters (such as modulation scheme, code rate, resource block allocation, and transmission mode) based on capability indicators reported by devices. When devices report poor signal quality or high interference, the network node can allocate more robust resources or increase transmission power. When conditions are good, the network node can allocate more efficient resources, thereby dynamically optimizing the balance between signal quality and power consumption rather than using fixed high-power operation.
Data Source
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AI summary
A wireless communication device and method therein for improving its performance are disclosed. The wireless communication device obtains information on power consumption requirement and/or performance of certain carriers regarding at least one of path loss, load and interference. The wireless communication device determines an indication parameter associated with preferences of the wireless communication device based on the obtained information. The wireless communication device then sends the indication parameter to the network node and receives signals from the network node with allocated radio resources configured by the network node based on the indication parameter.