Multi-Panel Terminal Links Across Serving and Non-Serving Cells
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Solution Overview
Problem
In high-frequency communication scenarios, such as those in the 5G NR system above 6 GHz, beam-based transmission and reception lead to insufficient spatial diversity, resulting in poor communication quality due to channel fading.
Innovation Solution
A terminal with multiple antenna panels communicates with both a serving cell and a non-serving cell using different antenna panels simultaneously, employing dynamic TCI states and beam measurements to optimize data reception and transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam-based transmission is used in high-frequency communication, then coverage is ensured, but spatial diversity is insufficient leading to poor communication quality
Solution Approach 1:
The terminal is divided into multiple antenna panels (first antenna panel, second antenna panel, etc.), each capable of independently communicating with different cells. This segmentation enables the system to simultaneously maintain beam-based transmission for coverage while utilizing multiple spatial locations for diversity, resolving the contradiction between coverage and spatial diversity.
Solution Approach 2:
The patent introduces a multi-cell communication dimension alongside the traditional single-cell beam transmission. By enabling the terminal to communicate with both a serving cell and a non-serving cell simultaneously through different antenna panels, the system adds a dimensional aspect to spatial diversity without sacrificing beam-based coverage efficiency.
2Adaptability or versatility
If multiple antenna panels communicate with multiple cells simultaneously, then spatial diversity is improved, but device complexity increases
Solution Approach 1:
The antenna panels are designed with multi-functionality, where each panel can serve multiple purposes: communicating with the serving cell, communicating with non-serving cells, and performing beam measurements. This universal design reduces the need for separate dedicated components for each function, thereby managing complexity while achieving enhanced spatial diversity.
Solution Approach 2:
The system incorporates beam measurement and feedback mechanisms where the terminal measures beams from both serving and non-serving cells, reports measurement results, and receives configuration adjustments. This feedback loop enables dynamic optimization of communication quality while managing complexity through automated adaptation rather than manual configuration.
Data Source
AI summary
A method for wireless communication is performed by a terminal having a plurality of antenna panels, and includes: respectively communicating with a first cell and a second cell by different antenna panel, in which the first cell is a service cell of the terminal, and the second cell is a cell other than a service cell of the terminal.