Communication Circuit Power Control for 5G EN-DC Compliance
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Solution Overview
Problem
In the context of 5G EN-DC, terminal devices face challenges in adjusting the difference between NR transmission power and requested power to comply with the 6 dBm limit, as the total LTE and NR transmission power exceeds the permissible limit, preventing the necessary adjustment of NR transmission power to meet the predetermined value.
Innovation Solution
A communication circuit with a first and second transmitter circuit, where the second transmitter circuit is placed in a transmission halt state when the difference between requested power and scheduled power exceeds a predetermined value, ensuring that the NR transmission power does not exceed the permissible limit by calculating the scheduled power based on the maximum transmission power and requested power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If LTE transmission is conducted simultaneously with NR transmission, then the terminal device can achieve dual connectivity communication, but the total transmission power exceeds the permissible limit, preventing adjustment of NR transmission power to meet the 6 dBm difference requirement
Solution Approach 1:
The patent implements dynamic power adjustment by continuously monitoring the difference between NR transmission power and requested power, and dynamically halting or resuming NR transmission based on whether this difference exceeds the 6 dBm threshold. This dynamic control mechanism allows the system to adapt to varying power conditions while maintaining dual connectivity capability.
Solution Approach 2:
The patent employs periodic monitoring and control cycles where the terminal device repeatedly checks the power difference condition, halts transmission when the threshold is exceeded, and can resume transmission when conditions improve. This periodic action ensures continuous compliance with power requirements while maintaining communication functionality.
2Power
If NR transmission power is reduced to meet the 6 dBm difference requirement, then power compliance is achieved, but communication performance deteriorates when LTE transmission is already conducted at high power
Solution Approach 1:
Instead of permanently reducing NR transmission power, the patent implements periodic transmission halts only when the power difference exceeds 6 dBm. This allows the system to maintain high communication performance during normal operation while periodically halting transmission to meet power compliance requirements, thus balancing performance and regulatory adherence.
Solution Approach 2:
The patent changes the transmission state parameter (active/halted) based on the power difference condition. When the difference between NR transmission power and requested power exceeds 6 dBm, the transmission parameter is changed to halted state, and can be restored to active state when conditions improve, thus dynamically adjusting to maintain compliance without permanent performance degradation.
Data Source
AI summary
A communication circuit includes a first transfer circuit that includes a first transmitter circuit, and a second transfer circuit that includes a second transmitter circuit that can transmit a signal simultaneously with the first transmitter circuit. The second transmitter circuit is configured to be placed in a transmission halt state when a difference between requested power and scheduled power is greater than a predetermined value, the requested power being requested transmission power, the scheduled power being transmission power to be transmitted based on the requested power.