Uplink Power Allocation Between LTE and NR Carriers
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently allocating transmission power across multiple radio access technologies (RATs) in user equipment, leading to suboptimal performance and throughput, especially in scenarios involving both LTE and NR.
Innovation Solution
A dynamic power allocation method is implemented using controller equipment that identifies performance characteristics such as SINR and spectral efficiency to adjust uplink power between LTE and NR carriers, optimizing power allocation based on measured performance metrics and channel conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If transmission power is allocated across multiple radio access technologies (RATs) in user equipment, then system robustness and coverage are improved, but power efficiency and throughput deteriorate due to suboptimal power distribution
Solution Approach 1:
The patent implements dynamic power allocation that continuously adjusts power distribution between LTE and NR RATs based on real-time channel conditions, SINR measurements, and spectral efficiency metrics. This dynamic approach replaces static power allocation with adaptive control, allowing the system to optimize throughput while maintaining robustness across varying network conditions.
Solution Approach 2:
The patent changes the power allocation parameters by introducing SINR-based and spectral efficiency-based allocation strategies. These parameter changes enable the system to adapt power distribution according to actual channel quality, resolving the contradiction between maintaining robust connectivity and achieving high throughput by optimizing the power split based on measured performance metrics.
2Productivity
If dynamic power allocation based on performance characteristics is implemented, then aggregated data rate and signal quality are improved, but system complexity increases due to additional measurements and control mechanisms
Solution Approach 1:
The patent implements feedback mechanisms where the system measures SINR and spectral efficiency for each RAT, uses these measurements to determine optimal power allocation, and applies the allocated power in subsequent transmissions. This closed-loop feedback approach enables improved aggregated data rate while managing complexity through systematic measurement and control procedures.
Solution Approach 2:
The system performs self-optimization by autonomously measuring its own performance characteristics (SINR, spectral efficiency) and adjusting power allocation without requiring external network control. This self-service approach improves productivity while containing complexity within the user equipment rather than requiring complex network-side coordination.
3Reliability
If power is allocated to multiple RATs simultaneously, then network coverage and connectivity are improved, but power consumption increases leading to reduced battery life
Solution Approach 1:
The patent applies partial action by allocating power to multiple RATs only when performance metrics indicate benefit, rather than continuously maximizing power to all RATs. The SINR-based and spectral efficiency-based allocation strategies ensure power is distributed partially to each RAT according to actual need, maintaining connectivity while reducing unnecessary power consumption compared to uniform or maximum power allocation.
Data Source
AI summary
The technologies described herein are generally directed to modeling radio wave propagation in a fifth generation (5G) network or other next generation networks. For example, a method described herein can include, for a network application, identifying, by a system comprising a processor, a user equipment communicatively coupled to base station equipment via a first network connection implementing a first radio access technology and a second network connection implementing a second radio access technology. The method can further include identifying, by the system, performance characteristics of the first network connection and the second network connection. Further, the method can include, based on the first performance characteristic and the second performance characteristic, facilitating, by the system, allocating, to the user equipment, power for uplink transmission by the first network connection and the second network connection, resulting in an uplink power allocation.