Beam State Activation via Unified TCI for Flexible High-Band Coverage
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Solution Overview
Problem
Wireless signals in high frequency bands decay quickly, leading to reduced coverage, necessitating a flexible beam update mechanism.
Innovation Solution
A unified TCI (transmission configuration indicator) architecture is applied to both uplink and downlink channels, allowing for the activation of beam states using DCI, MAC CE, and power control parameters to optimize beam management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If beam states are activated using separate mechanisms for uplink and downlink, then channel-specific beam management is achieved, but system complexity and signaling overhead increase
Solution Approach 1:
The patent combines uplink and downlink beam state activation into a unified MAC CE mechanism. A single MAC CE can activate beam states for both uplink and downlink channels simultaneously, eliminating the need for separate activation procedures and reducing overall system complexity while maintaining channel-specific management capabilities
Solution Approach 2:
The MAC CE structure is designed to serve multiple functions: it can activate beam states for downlink only, uplink only, or both uplink and downlink channels depending on configuration. This multi-functional approach reduces the number of separate mechanisms needed while preserving adaptability to different channel management requirements
2Speed
If beam states are activated without mode indication, then activation speed increases, but beam application accuracy decreases
Solution Approach 1:
The patent pre-configures beam state groups with specific mode indications (uplink, downlink, or both) before activation. When a MAC CE activates beam states, the appropriate mode is already determined from the pre-configured groups, enabling fast activation without real-time mode negotiation while ensuring accurate beam application to the correct channels
3Adaptability or versatility
If unified TCI architecture is applied to both uplink and downlink, then beam management flexibility improves, but configuration complexity increases
Solution Approach 1:
The patent segments the unified TCI architecture into configurable groups, where each group can be independently configured for uplink, downlink, or both directions. This segmentation allows flexible beam management across channels while simplifying configuration by breaking down the unified architecture into manageable, independently configurable units
Solution Approach 2:
Different groups of beam states can be configured with different modes and parameters tailored to specific channel requirements. This local customization within the unified architecture enables optimized beam management for each channel type while maintaining overall system flexibility
Data Source
AI summary
Example implementations include a wireless communication method of receiving, by a wireless communication device from a network, beam state activation information, the beam state activation information corresponding to a mode, and communicating, by the wireless communication with the network, a target signal according to at least one of the beam state activation information or the mode, wherein the target signal comprises at least one of downlink target signal or uplink target signal. Example implementations also include a wireless communication method of sending, by a network to a wireless communication device, a beam state activation information, the beam state activation information corresponding to a mode, and communicating, by the network with the wireless communication device, a target signal according to at least one of the beam state activation information or the mode, wherein the target signal comprises at least one of downlink target signal or uplink target signal.