Wireless Transmission Power Control for Dynamic Radio Resources
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing transmission power, particularly in dynamically changing radio resource usage scenarios, leading to ambiguity in processing transmission power control commands across different types of uplink resources.
Innovation Solution
A method for controlling transmission power in wireless communication systems involves receiving transmission power control commands for first and second radio resource sets, where the first set allows dynamic changes and the second set does not, with different open-loop control parameters applied to each and the same closed-loop parameters used for both, ensuring efficient power management by determining when to apply or accumulate positive or negative power control commands based on maximum or minimum transmission power thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If transmission power control commands are processed uniformly across all uplink resources, then device complexity is reduced, but transmission power control efficiency deteriorates due to ambiguity in dynamically changing radio resource scenarios
Solution Approach 1:
The patent segments uplink resources into two distinct types: first uplink resources with dynamic radio resource usage and second uplink resources with static radio resource usage. This segmentation allows different processing rules to be applied to each type, resolving the ambiguity in power control command processing while maintaining clear, manageable complexity through type-based differentiation.
Solution Approach 2:
The patent introduces dynamic determination of resource type based on whether radio resources are dynamically changed. First uplink resources are identified by dynamic radio resource changes, while second uplink resources have static allocations. This dynamic classification enables the system to adapt power control processing to the actual resource state, improving control efficiency without requiring complex predefined rules.
2Measurement precision
If different open-loop control parameters are applied to first and second radio resource sets, then transmission power control precision is improved, but device complexity increases
Solution Approach 1:
The patent applies different open-loop control parameters specifically to first radio resource sets (with dynamic usage) versus second radio resource sets (with static usage). This local differentiation ensures that power control precision is optimized for each resource type's characteristics, while the clear type-based classification prevents excessive complexity by avoiding the need for individual parameter management for each resource.
Data Source
AI summary
A method for controlling transmission power of a user equipment (UE) in a wireless communication system supporting dynamic changes of a use of radio resources is discussed. The method includes receiving a transmission power control (TPC) command, for a first radio resource set and a second radio resource set, including open-loop control parameters and a closed-loop control parameter. In addition, the first radio resource set is configured to allow the dynamic changes, and the second radio resource set is configured to prevent the dynamic changes. The method further includes controlling transmission power values of the first radio resource set and second radio resource set respectively using the open-loop control parameters and the closed-loop control parameter. Furthermore, each of the open-loop control parameters is respectively applied to the first radio resource set and the second radio resource set, and the closed-loop control parameter is commonly applied to the first radio resource set and the second radio resource set.