Panel-Specific Uplink Transmission Beam Management
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G NR, face challenges in efficiently scheduling and optimizing panel-specific uplink transmissions, leading to suboptimal performance in terms of beam management and resource allocation.
Innovation Solution
The method involves a base station indicating a UE panel for uplink transmission and the UE determining a transmit panel based on this indication, using a corresponding transmit beam to send the uplink transmission, while also considering beam pairing and capability reports to optimize aggregated slots or mini-slots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If panel-specific uplink transmissions are implemented, then beam management performance is improved, but device complexity increases
Solution Approach 1:
The UE antenna array is divided into multiple panels, with each panel having its own beam management capabilities. The base station receives separate beam management information for each panel, allowing independent optimization of beamforming for different spatial directions and transmission requirements.
Solution Approach 2:
The patent introduces panel dimension to the traditional beam management structure. Instead of managing beams from a single antenna array perspective, the system now manages beams across multiple panels, adding a spatial dimension to beam management that improves coverage and reliability.
2Adaptability or versatility
If multiple panels are used for uplink transmission, then transmission diversity is improved, but resource allocation complexity increases
Solution Approach 1:
Uplink transmissions are segmented across multiple panels, with each panel capable of independent transmission. This allows the system to exploit spatial diversity by transmitting the same or different data streams from different panels, improving reliability and adaptability.
Solution Approach 2:
Each panel is designed with universal beam management capabilities, allowing any panel to serve multiple functions including uplink transmission, downlink reception, and beam training. This multi-functionality reduces overall system complexity despite having multiple panels.
3Productivity
If panel indication is implemented for uplink transmission, then resource allocation efficiency is improved, but signaling overhead increases
Solution Approach 1:
The base station performs preliminary beam management and panel selection before uplink transmission. By determining the optimal panel and beam configuration in advance, the system can allocate resources more efficiently without requiring extensive real-time signaling during actual transmission.
Solution Approach 2:
The system implements feedback mechanisms where the UE reports beam management information for each panel, and the base station uses this feedback to make informed decisions about panel allocation and beam configuration, optimizing resource allocation while managing signaling overhead.
Data Source
AI summary
To schedule panel specific uplink transmissions, the UE may assist in the scheduling of the panel specific uplink transmission by improving the manner in which the specific panel is indicated for uplink transmission. The apparatus receives, from a base station, an indication of a UE panel for an uplink transmission. The apparatus determines a Tx panel at the UE based on the indication of the UE panel. The apparatus transmits, to the base station, the uplink transmission using the Tx beam associated with the Tx panel.