Uplink Antenna Panel Reporting for Multi-Panel Capability Visibility
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Solution Overview
Problem
Network side devices in communication systems like 5G lack sufficient information about the uplink transmission characteristics of terminals with multiple antenna panels, limiting their ability to optimize network performance.
Innovation Solution
Terminals report or receive information to determine uplink transmission characteristics, such as antenna panel identifiers and relationship information, using downlink signals to indicate beam information, enabling network side devices to obtain and utilize more detailed terminal information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If terminals support multiple antenna panels for uplink transmission, then transmission performance and flexibility are improved, but network side devices cannot obtain sufficient information about terminal capabilities
Solution Approach 1:
The terminal feeds back uplink transmission characteristic information to the network side device through uplink signaling. This feedback mechanism enables the network side device to obtain terminal capability information including antenna panel identifiers and panel relationship information, resolving the information asymmetry while maintaining multi-panel transmission flexibility
Solution Approach 2:
The patent introduces panel relationship information as an intermediary element that connects downlink reception characteristics with uplink transmission characteristics. This intermediary enables the network side device to infer uplink transmission capabilities from downlink measurements without requiring direct terminal capability reporting
2Reliability
If the terminal reports detailed antenna panel information, then the network side device can optimize uplink transmission, but the signaling overhead and complexity increase
Solution Approach 1:
The patent extracts only the essential uplink transmission characteristic information (antenna panel identifier and panel relationship information) that the network side device needs for optimization. By selecting and reporting only critical parameters rather than complete terminal capability sets, signaling overhead and processing complexity are reduced while maintaining transmission reliability
Solution Approach 2:
The reported panel relationship information serves multiple functions: it identifies the antenna panel for uplink transmission, establishes the correspondence between downlink and uplink panels, and enables beam management. This multi-functionality reduces the need for separate signaling for each function, thereby reducing overall complexity
Data Source
AI summary
Embodiments of the present disclosure provide an uplink transmission characteristics confirmation method, includes: obtaining, by a terminal, first information, wherein the first information includes information reported by the terminal to a network side device or information received by the terminal from the network side device; determining uplink transmission characteristic of the terminal, wherein the uplink transmission characteristic is an antenna panel for the uplink transmission determined by terminal according to the first information, or the uplink transmission characteristic is determined by the terminal according to the first information and second information, and the second information includes panel relationship information of the terminal.