Panel-Specific TCI State Pools for MTRP Beam Management
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Solution Overview
Problem
Existing communication systems with multiple transmission and reception points (MTRP) do not adequately account for channel measurement results per panel in terminals with multiple panels, leading to inefficiencies in beam management and communication quality.
Innovation Solution
A method and device for user equipment (UE) to report channel measurement results per panel by transmitting UE capability information, receiving panel-specific TCI state pool information, and activating or deactivating TCI states using MAC-CE signaling, allowing differentiated TCI state configurations for each panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single unified TCI state pool is configured for all panels, then device complexity is reduced, but measurement precision and beam management efficiency deteriorate because panel-specific channel characteristics cannot be accurately captured
Solution Approach 1:
The patent divides the unified TCI state pool into multiple panel-specific TCI state pools, where each pool is dedicated to a specific panel. This segmentation allows each panel to have its own set of TCI states configured based on its specific channel characteristics, thereby improving measurement precision without requiring a completely new unified system.
Solution Approach 2:
The patent applies local quality by configuring TCI states with panel-specific parameters and characteristics. Each panel's TCI state pool is tailored to match the local channel conditions and beam characteristics of that specific panel, rather than using a generic unified configuration for all panels.
2Productivity
If panel-specific TCI state pools are configured for each panel, then beam management efficiency and communication quality improve, but device complexity and signaling overhead increase
Solution Approach 1:
The patent performs preliminary action by pre-configuring panel-specific TCI state pools during the initial connection setup. The base station determines the number of panels based on UE capability information and pre-allocates appropriate TCI state pools, so that when beam management is needed, the UE can immediately utilize the pre-configured panel-specific states without requiring complex real-time allocation decisions.
Solution Approach 2:
The patent applies universality by designing a flexible TCI state pool configuration mechanism that can adapt to different numbers of panels. The base station can dynamically determine and configure an appropriate number of TCI state pools based on UE capability, allowing the same system to serve both single-panel and multi-panel UEs efficiently.
3Adaptability or versatility
If the base station determines the number of panels based on UE capability information, then adaptability improves, but information transmission overhead increases due to additional capability reporting
Solution Approach 1:
The patent applies self-service by enabling the UE to autonomously determine and report its panel configuration capabilities. The UE uses its own internal knowledge of its hardware configuration to self-report the number of panels it has, eliminating the need for the base station to probe or infer this information through complex interaction sequences.
Data Source
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AI summary
A method of a UE, according to one embodiment of the present disclosure, may comprise the steps of: receiving a UE capability information request message from a base station; transmitting, to the base station, in response to the reception of the UE capability information request message, UE capability information including a number of panels and a number of ports of the UE; and receiving, from the base station, upper layer signaling including panel-specific TCI state pool information, wherein the TCI state pool information configured for each panel can include cell lists having one or more cells.