PUCCH TCI State Segmentation for Beam Management
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently applying transmission beams for uplink data channels, particularly in providing seamless services across various frequency bands and service requirements.
Innovation Solution
A method and device for efficiently managing transmission beams in a wireless communication system, where a user equipment (UE) receives configuration information from a base station for physical uplink control channel (PUCCH) resources, including transmission configuration indicator (TCI) states and application times, and transmits PUCCH based on this information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple TCI states are configured for PUCCH resources, then beamforming capability and service versatility are improved, but system complexity and configuration management difficulty increase
Solution Approach 1:
The patent segments the TCI state configuration into separate fields: a first field indicating a first TCI state for initial beam configuration, and a second field indicating a second TCI state for service-specific beam configuration. This segmentation allows the UE to manage multiple beams systematically by processing them in distinct configuration stages, reducing the complexity of handling multiple TCI states simultaneously.
Solution Approach 2:
The patent applies preliminary action by configuring the first TCI state before the second TCI state. The first TCI state is established initially, and then the second TCI state is configured subsequently with a timing indication. This sequential preliminary configuration allows the UE to prepare beam settings in advance, making the overall system more manageable while maintaining versatility.
2Manufacturing precision
If TCI state application time is extended, then beam switching accuracy is improved, but service continuity and time sensitivity deteriorate
Solution Approach 1:
The patent introduces dynamic timing control by differentiating between two timing parameters: a first timing indication associated with the first TCI state and a second timing indication associated with the second TCI state. This dynamic timing mechanism allows the system to adjust the application time of each TCI state according to service requirements, achieving accurate beam switching when needed while maintaining service continuity when time sensitivity is critical.
Solution Approach 2:
The patent segments the timing control into separate indications for different TCI states. The first timing indication controls when the first TCI state is applied, and the second timing indication controls when the second TCI state is applied. This segmentation enables independent timing optimization for each beam configuration, allowing the system to balance accuracy and continuity based on specific service needs.
3Adaptability or versatility
If multiple PUCCH resources are configured with different TCI states, then uplink control channel flexibility is improved, but resource management complexity increases
Solution Approach 1:
The patent segments the PUCCH resource configuration into multiple fields, each associated with a specific TCI state. The first field links to the first TCI state, and the second field links to the second TCI state. This segmentation allows the UE to manage each PUCCH resource and its corresponding beam configuration independently, reducing the overall complexity of managing multiple resources with different TCI states while maintaining flexibility.
Solution Approach 2:
The patent incorporates feedback mechanisms where the UE reports on the application of TCI states and PUCCH resource configuration. This feedback allows the base station to verify proper configuration and adjust resource allocation accordingly, simplifying resource management by ensuring that only properly configured resources are activated, thereby reducing unnecessary complexity.
Data Source
AI summary
The present disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. According to various embodiments of the present disclosure, a method performed by a UE in a wireless communication system may comprise the steps of: receiving, from a base station, configuration information for one or more physical uplink control channel (PUCCH) resources indicating at least one transmission configuration indicator (TCI) state, and information about a TCI state application time; receiving, from the base station, first downlink control information (DCI) including information indicating first one or more TCI states, receiving, from the base station, second DCI including information indicating second one or more TCI states and an indicator for at least one PUCCH resource, and scheduling a PUCCH; and transmitting the PUCCH to the base station on the basis of the first DCI, the second DCI, and the TCI state application time.