User Equipment Power Headroom Reporting for Multi-Base Station Scheduling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In the new network architecture where user equipment (UE) communicates with multiple base stations, existing power headroom reporting methods only allow each base station to know the power headroom relative to itself, leading to inaccurate power scheduling decisions as no base station can comprehensively understand the UE's power headroom situations across all base stations.
Innovation Solution
The UE reports power headroom information to both the master and secondary base stations, enabling each base station to perform power scheduling based on the other's power headroom, thus improving the accuracy of power allocation decisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the UE reports power headroom to each base station separately using conventional PHR methods, then each base station can obtain power headroom information, but each base station can only know the power headroom relative to itself, leading to inaccurate power scheduling decisions
Solution Approach 1:
The patent introduces a master base station as an intermediary that collects power headroom information from the UE and shares it with secondary base stations. This mediator enables all base stations to access complete power headroom information without requiring the UE to send separate reports to each base station, thus improving information completeness while maintaining measurement accuracy.
Solution Approach 2:
The patent combines power headroom reporting for multiple base stations into a single unified report sent by the UE to the master base station. This merging approach consolidates what would otherwise be multiple separate reporting channels into one efficient mechanism, ensuring all base stations receive comprehensive power headroom information simultaneously.
2Productivity
If the UE sends separate power headroom reports to multiple base stations, then each base station can make power scheduling decisions, but the overall power scheduling accuracy remains insufficient because no base station has complete information
Solution Approach 1:
The patent implements preliminary power headroom reporting to the master base station before actual power scheduling decisions are made by individual base stations. This advance reporting ensures that complete power headroom information is available to all base stations prior to scheduling, enabling more accurate decisions without delaying the scheduling process.
Solution Approach 2:
The patent establishes a feedback mechanism where the master base station receives power headroom information from the UE and distributes it to secondary base stations. This feedback loop ensures that all base stations have access to the latest power headroom data, improving the accuracy of their scheduling decisions while maintaining efficient operations.
Data Source
Figure 1A
Figure 1B
Figure 2A~3
AI summary
The present invention relates to the communications field, and provides a power headroom reporting method and apparatus, and a user equipment, which can improve accuracy of power scheduling by a base station. The power headroom reporting apparatus (20) includes: an acquisition unit (21), configured to acquire a power headroom of the apparatus (20) relative to a first base station, and a power headroom of the apparatus (20) relative to a second base station, where the power headroom for the first base station refers to a power headroom for one or more cells of the first base station corresponding to the apparatus (20), and the power headroom for the second base station refers to a power headroom for one or more cells of the second base station corresponding to the apparatus (20); and a sending unit (22), configured to send the power headroom for the first base station acquired by the acquisition unit (21) to the second base station, and send the power headroom for the second base station to the first base station. The present invention is applied to power scheduling technologies.