UE Power Allocation for Multi-Cell Subframe Priorities
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Solution Overview
Problem
In current communications systems, when user equipment (UE) accesses multiple cell groups with different transmission subframe time granularities, idle transmit power on subframes with earlier transmission times cannot be efficiently re-allocated to subframes with later transmission times, leading to waste and low power utilization due to differing priorities and subframe lengths.
Innovation Solution
The UE determines the start time points of control subframes for target subframes with different priorities and allocates power based on uplink channel information, preferentially allocating to subframes with lower frequencies or earlier start times, using a time difference threshold to configure power allocation priorities and ensure efficient power utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If transmit power is preferentially allocated to transmission subframes with earlier transmission times, then transmission reliability of high-priority subframes is improved, but power utilization efficiency deteriorates due to inability to re-allocate idle power from high-priority to low-priority subframes
Solution Approach 1:
The patent implements dynamic power allocation by determining priorities of transmission subframes based on their transmission times and establishing flexible allocation rules. The system dynamically adjusts power distribution according to real-time subframe priorities, allowing idle power from high-priority subframes to be re-allocated to low-priority subframes, thus resolving the contradiction between transmission reliability and power utilization efficiency
Solution Approach 2:
The patent changes the parameter of power allocation by introducing priority-based allocation rules that consider transmission time differences. By modifying how power is allocated from static to dynamic based on subframe priorities, the system enables efficient re-allocation of idle power while maintaining transmission reliability
2Reliability
If transmit power is allocated based on fixed priority rules for earlier subframes, then transmission timing reliability is improved, but adaptability to varying data transmission needs deteriorates
Solution Approach 1:
The patent makes the power allocation system dynamic by establishing priority determination mechanisms that adapt to different transmission scenarios. The system can flexibly adjust power allocation based on whether subframes belong to same or different cell groups, and whether they have overlapping transmission times, thus maintaining timing reliability while improving adaptability
Solution Approach 2:
The patent applies different power allocation rules to different local scenarios: when subframes belong to the same cell group versus different cell groups, and when transmission times overlap versus do not overlap. This localized quality approach allows the system to maintain timing reliability for critical subframes while adapting power allocation to specific transmission needs
Data Source
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AI summary
This disclosure discloses a power allocation method and apparatus, and belongs to the field of communications technologies. The method includes: determining, by UE, a first start time point of a first control subframe and a second start time point of a second control subframe; determining, based on the first start time point and the second start time point, whether a priority of a first target subframe is higher than a priority of a second target subframe; and if the priority of the first target subframe is higher than the priority of the second target subframe, allocating, based on first uplink channel information and second uplink channel information, power to the UE in a base station or a cell group in which the first target subframe is located, and allocating reserved power of the UE to the UE in a base station or a cell group in which the second target subframe is located; or if the priority of the first target subframe is lower than the priority of the second target subframe, allocating, based on first uplink channel information and second uplink channel information, power to the UE in a base station or a cell group in which the second target subframe is located, and allocating reserved power of the UE to the UE in a base station or a cell group in which the first target subframe is located.