Unified TCI Pool Across Multiple Component Carriers
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in signaling overhead and power consumption when managing transmission configuration indicators (TCIs) across multiple component carriers (CCs), particularly in configuring directional beams for user equipment (UE) in 4G and 5G networks.
Innovation Solution
Configuring a single TCI state pool for multiple CCs, allowing the UE to use a common TCI pool for different TCI types, such as joint downlink and uplink TCI, downlink common beam TCI, and uplink common beam TCI, to reduce signaling overhead and improve power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate TCI pools are configured for each CC, then TCI configuration flexibility is improved, but signaling overhead increases
Solution Approach 1:
The patent merges multiple separate TCI pools into a single shared TCI pool that serves multiple CCs. The base station transmits a single TCI pool configuration that can be applied across different CCs, eliminating the need for separate TCI pool configurations for each CC. This reducing of redundant signaling while maintaining the ability to configure TCI states for different CCs through the unified pool structure.
Solution Approach 2:
The single TCI pool is designed to serve multiple functions across different CCs. The same TCI pool configuration can be applied to different CCs, allowing the system to maintain TCI configuration flexibility while using a universal structure that reduces signaling overhead. The patent enables one TCI pool to fulfill the role of multiple separate pools.
2Adaptability or versatility
If separate TCI pools are configured for each CC, then TCI configuration flexibility is improved, but power consumption increases
Solution Approach 1:
The patent merges multiple separate TCI pools into a single shared TCI pool that serves multiple CCs. The base station transmits a single TCI pool configuration that can be applied across different CCs, eliminating the need for separate TCI pool configurations for each CC. This reducing of redundant signaling while maintaining the ability to configure TCI states for different CCs through the unified pool structure.
Solution Approach 2:
The patent extracts the common TCI pool structure from individual CC configurations. By identifying and extracting the shared TCI pool that can be universally applied across multiple CCs, the system eliminates redundant TCI configuration transmissions for each CC, thereby reducing the energy consumption associated with processing and transmitting multiple separate configurations.
3Loss of information
If a single TCI pool is configured for multiple CCs, then signaling overhead is reduced, but TCI configuration complexity increases
Solution Approach 1:
The patent segments the TCI configuration into distinct TCI state types (e.g., downlink TCI, uplink TCI, joint TCI) within the unified pool. Each TCI state type can be independently configured and applied to different CCs, which simplifies the management of the single pool by breaking it down into manageable segments rather than treating it as a monolithic complex structure.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may communicate with a base station using a beamforming configuration, according to a transmission configuration indicator (TCI) configuration. The UE may receive a message including a TCI configuration. The UE may determine based on the TCI configuration, a TCI pool for a TCI state type of a set of TCI state types and a set of CCs. The UE may then perform the wireless communication via a directional beam based on the TCI pool for the TCI state type and the set of component carriers (CCs).