Service-Aware Uplink Power Control for Variable Antenna Attenuation
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Solution Overview
Problem
The integration of multiple functions in terminal devices, such as mobile phones, results in varying antenna attenuation based on orientation and operative modes, leading to increased uplink bit error rates due to inadequate power allocation.
Innovation Solution
A power control method and device that determines target service types through data type tags in PDU sessions, configures and adjusts receiving powers based on service requirements, and calculates transmission powers within the limits of maximum transmission power to optimize power allocation for different service types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal device uses a fixed power allocation strategy, then the device complexity is reduced, but the uplink bit error rate increases due to varying antenna attenuation in different orientations and service scenarios
Solution Approach 1:
The patent implements dynamic power allocation by adjusting the target receiving power based on the determined service type. The base station dynamically configures different target receiving powers for different service types (e.g., eMBB, uRLLC, mMTC) instead of using a fixed power allocation strategy, thereby adapting to varying antenna attenuation conditions in different orientations and service scenarios while reducing uplink bit error rates
Solution Approach 2:
The patent changes the power allocation parameter (target receiving power) based on the service type. By determining the service type from the PDU session establishment request and selecting corresponding target receiving power values, the system optimizes power allocation for different service requirements without significantly increasing device complexity
2Reliability
If the terminal device increases transmission power to compensate for antenna attenuation, then the uplink bit error rate decreases, but the energy consumption increases
Solution Approach 1:
The patent optimizes the transmission power parameter by configuring different target receiving powers based on service types. This prevents unnecessary increases in transmission power when high power is not required for the current service scenario, thereby reducing energy consumption while maintaining acceptable uplink bit error rates
Solution Approach 2:
The patent applies partial power increase only when necessary by matching the target receiving power to the specific service type requirements. Instead of uniformly increasing power for all services, the system applies power adjustment selectively based on the determined service type, avoiding excessive energy consumption for services that do not require high power
Data Source
AI summary
A power control method includes: receiving a protocol data unit (PDU) session establishment request sent by a terminal device; determining a target service type carried by a PDU session corresponding to the PDU session establishment request according to a data type tag carried by the PDU session establishment request; determining a target receiving power corresponding to the target service type according to the target service type and a configured receiving power of a base station; sending the target receiving power corresponding to the target service type to the terminal device.