Open-Loop Power Control for Multiplexed Wireless Services
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing power control indications for multiple services, particularly in scenarios where different services require varying reliability and latency standards, leading to potential interference or conflicts when dynamically multiplexed on the same time-frequency resources.
Innovation Solution
The method involves transmitting scheduling information indicating multiple open-loop power levels associated with uplink transmissions on a wireless channel, selecting the appropriate power level based on the type of service, and transmitting open-loop power control information to the wireless device to ensure successful reception of the uplink transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple services are dynamically multiplexed on the same time-frequency resources, then resource utilization efficiency is improved, but interference and conflicts between transmissions occur
Solution Approach 1:
The patent applies local quality by configuring different power control parameters specifically for different service types (eMBB and URLLC) within the same system. Each service type receives tailored open-loop power control configurations including path loss compensation factors and target received power levels, allowing localized optimization of transmission power for each service's specific requirements while coexisting on shared resources.
Solution Approach 2:
The patent implements parameter changes by dynamically adjusting open-loop power control parameters based on service type. The system modifies key parameters such as path loss compensation factors (alpha values), target received power levels (P0), and maximum power reductions specific to each service type, enabling adaptive power control that resolves interference while maintaining high resource utilization.
2Reliability
If different power control parameters are used for different service types, then transmission reliability is improved, but system complexity increases
Solution Approach 1:
The patent applies segmentation by separating power control configurations into distinct sets for different service types. The system maintains separate open-loop power control parameter configurations for eMBB and URLLC services, with dedicated path loss compensation factors and target power levels for each segment, simplifying the management of multiple service types through structured separation.
Solution Approach 2:
The patent implements universality by designing a unified power control framework that handles multiple service types through a common architecture. The base station and UE are configured with multi-functional capabilities to process and apply different power control parameter sets based on service type indicators, reducing overall system complexity through standardized multi-purpose mechanisms.
Data Source
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AI summary
Systems, methods and apparatus for power control indication for multiple services. A base station may transmit scheduling information to a UE indicating first, second, and third open-loop power levels associated with uplink transmissions on a first wireless channel. The base station may select one of the first, second, or third open-loop power levels to be used for a first uplink transmission based on a type of service associated with the first uplink transmission. For example, the first open-loop power level may be associated with enhanced mobile broadband (eMBB) services, the second open-loop power level may be a base open-loop power level associated with ultra-reliable low-latency communication (URLLC) services, and the third open-loop power level may be a boosted open-loop power level associated with URLLC services. The base station may transmit power control information to the UE indicating the power level.