TDD Power Control via Subframe Classification Sets
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Solution Overview
Problem
Current power control mechanisms in time division duplex (TDD) communication networks, particularly in local area TDD networks, face challenges in efficiently managing varying interference levels between and within subframes, leading to inflexible transmission power settings that do not adequately adapt to different interference scenarios.
Innovation Solution
The proposed solution involves classifying subframes into different classification sets, selecting and configuring power control parameters for each set to dynamically adjust transmission power settings, allowing for flexible power control that matches varying interference scenarios by using a mechanism that classifies subframes, selects power control parameters, and configures power control settings for each subframe based on its classification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If power control parameters are configured uniformly for all subframes, then device complexity is reduced, but adaptability to different interference scenarios deteriorates
Solution Approach 1:
The patent segments subframes into different classification sets (e.g., first classification sets and second classification sets) based on their interference characteristics. Different power control parameters are then configured for each classification set, enabling differentiated power control strategies that adapt to varying interference scenarios while maintaining manageable system complexity through structured organization.
2Reliability
If transmission power settings are made flexible to adapt to varying interference levels, then network performance is improved, but ease of operation deteriorates
Solution Approach 1:
The patent implements power control mechanisms that respond to feedback about interference levels and channel conditions. By continuously monitoring the radio environment and adjusting power settings based on this feedback, the system automatically adapts to varying interference scenarios, improving network performance while reducing the need for manual intervention and maintaining ease of operation.
3Adaptability or versatility
If power control parameters are selected and configured separately for different subframe classification sets, then adaptability to interference scenarios is improved, but device complexity increases
Solution Approach 1:
The patent applies local quality by configuring power control parameters specifically for each subframe classification set based on its unique interference characteristics. This allows optimized power control settings for different subframe types (e.g., subframes with different DL-UL switching patterns) while using a systematic approach that manages the complexity through standardized classification and parameter selection procedures.
Data Source
AI summary
There is provided a mechanism for conducting power control in a time division based communication. Subframes of a frame structure of the time division based communication are classified into at two or more classification sets, each classification set comprising at least one subframe. For each of the classification sets, power control related parameters are selected in accordance with the interference on the respective subframes. On the basis of the selected power control related parameters, a power control parameter set is configured defining a power control setting for each subframe of the frame structure. A UE receiving the power control parameter set applies the power control related parameters in the power control.