Uplink Power Control with Unified TCI for 5G Beam Management
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Solution Overview
Problem
The existing wireless communication systems face challenges in effectively providing various services, including enhanced mobile broadband, ultra-reliable low-latency communications, and massive machine-type communications, due to inefficiencies in power control mechanisms, especially in high-frequency bands like mmWave and terahertz frequencies, which affect signal transmission and reception.
Innovation Solution
The method involves the transmission and reception of uplink channels based on power control configuration information, including unified transmission configuration indication (TCI) state type, to optimize power control for physical uplink shared channels and control channels, enhancing beam management and resource allocation in 5G and 6G systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing power control mechanisms are used in high-frequency bands, then signal transmission and reception become inefficient, but implementing new power control mechanisms increases system complexity
Solution Approach 1:
The patent changes the parameters of power control by introducing unified TCI state type configuration information and separate power control configuration for different uplink channels (PUSCH and PUCCH). This allows the system to adapt power control parameters specifically for high-frequency bands, improving signal transmission efficiency without requiring a complete redesign of the power control mechanism
Solution Approach 2:
The patent segments the power control configuration by separating it into different configurations for PUSCH and PUCCH channels, and by introducing unified TCI state type configuration. This segmentation allows targeted optimization for each channel type while maintaining overall system manageability, resolving the contradiction between improved reliability and reduced complexity
2Productivity
If unified TCI state type configuration information is added to RRC messages, then power control optimization for uplink channels is improved, but message complexity and processing overhead increase
Solution Approach 1:
The patent introduces a unified TCI state type configuration that can be applied across multiple uplink channels (both PUSCH and PUCCH). This unified approach allows a single configuration mechanism to serve multiple functions and channels, improving power control optimization efficiency while avoiding the need for separate complex configurations for each channel type
Solution Approach 2:
The configuration is designed to be dynamic, allowing the base station to selectively include unified TCI state type configuration information in RRC messages based on service requirements and channel conditions. This dynamic approach enables the system to optimize power control only when needed, reducing unnecessary message complexity and processing overhead
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a terminal in a wireless communication system in the present disclosure to solve the above problems, comprises receiving, from a base station, a radio resource control (RRC) message including first power control configuration information for an uplink (UL) channel; and transmitting, to the base station, the UL channel based on at least one of the first power control configuration information or second power control configuration information. The RRC message includes the second power control configuration information in case that the RRC message further includes unified transmission configuration indication (TCI) state type configuration information, The first power control configuration information relates to a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH).