Dual Connectivity Pcmax Determination via Synchronization Segmentation
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Solution Overview
Problem
Current power control methods for wireless communication in dual connectivity scenarios, particularly in unsynchronized operations, are inadequate as they fail to accurately determine the maximum transmission power (P CMAX) due to significant timing differences between subframes from different cell groups, leading to inefficient power usage and potential interference.
Innovation Solution
The method involves determining P CMAX by identifying subframe pairs and calculating power limits based on synchronization levels, allowing for adaptive power control in both synchronized and unsynchronized dual connectivity operations, ensuring efficient power usage and reduced interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If power control methods are applied in unsynchronized dual connectivity operations, then transmission power can be regulated, but accurate determination of maximum transmission power (P CMAX) cannot be achieved due to significant timing differences between subframes from different cell groups
Solution Approach 1:
The patent segments the power control determination process by identifying specific subframe pairs between MCG and SCG, and calculating P CMAX separately for each cell group based on their respective timing characteristics. This allows accurate power determination in unsynchronized operations by treating each cell group's timing independently rather than assuming synchronization.
Solution Approach 2:
The patent introduces dynamic adaptation of power control methods based on synchronization status. The terminal determines whether operations are synchronized or unsynchronized and applies appropriate power control calculations accordingly. This dynamic approach enables accurate P CMAX determination across both synchronized and unsynchronized dual connectivity scenarios.
2Use of energy by moving object
If adaptive power control is implemented for both synchronized and unsynchronized operations, then efficient power usage is achieved, but system complexity increases due to multiple determination methods
Solution Approach 1:
The patent implements dynamic power control adaptation where the terminal determines its synchronization status and selects the appropriate power control method. For synchronized operations, standard power control applies; for unsynchronized operations, the patent's specific P CMAX determination method is used. This dynamic switching enables efficient power usage across different scenarios without requiring permanently complex mechanisms.
Solution Approach 2:
The patent changes the power control parameters and calculation methods based on synchronization status. By adjusting how P CMAX is determined according to whether operations are synchronized or unsynchronized, the system achieves efficient power usage in both modes while managing complexity through parameter adaptation rather than structural complexity.
3Ease of manufacture
If standard power control methods are used in dual connectivity, then implementation is straightforward, but interference increases and regulatory limits may not be met due to inaccurate P CMAX determination
Solution Approach 1:
The patent segments power control into cell-group-specific calculations, determining P CMAX separately for MCG and SCG based on their individual timing characteristics. This segmented approach ensures that power limits are accurately determined for each cell group, preventing excessive interference while maintaining ease of implementation through systematic separation of calculations.
Solution Approach 2:
The patent incorporates feedback mechanisms where the terminal monitors its transmission power and adjusts based on determined P CMAX values that account for unsynchronized timing. This feedback-based power adjustment ensures regulatory compliance and interference reduction while maintaining straightforward implementation through systematic power monitoring and adaptation.
Data Source
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AI summary
There is disclosed a method for operating a terminal (10) in a wireless communication network, the terminal (10) being adapted for dual connectivity, the method comprising determining a total configured maximum output power PCMAX of the terminal (10) based on a synchronization level. There are also disclosed further related devices and methods.