Pinching antennas enable flexible communication and sensing in 6g networks
Pinching-Antenna-Enabled ISAC: A Unified Architecture for Flexible Communication and Sensing
Information Theory
Summary
Communication systems in future 6G networks need to adapt quickly to changing locations of users and devices. The authors describe a new type of antenna called a pinching antenna, which can dynamically change where it sends signals along a flexible structure. This capability lets the antenna serve both communication and sensing needs in one system, improving how networks handle data and detect nearby objects simultaneously. They also identify challenges and techniques for using these antennas effectively.
What this means in practice
- •For mobile network engineers: Implement flexible antenna systems that can dynamically adjust to users and sensing targets in 6G base stations.
- •For wireless device designers: Design communication devices that balance data transmission and environmental sensing efficiently using pinching antennas.
A position paper. It proposes an approach and reports no results.
Authors
Yunshu Chen, Qing Xue, Chongjun Ouyang, Zhidu Li, Yi Wang, Meng Hua
Abstract
Integrated sensing and communication (ISAC) is a cornerstone of sixth-generation (6G) networks, yet conventional fixed-antenna systems lack the spatial adaptability to cope with dynamic users and targets. The emerging pinching antenna (PA) offers a flexible, low-cost solution by dynamically reconfiguring radiation points along waveguides, introducing large-scale spatial degrees of freedom. This article develops a unified architectural perspective for PA-enabled ISAC. We first discuss the unique advantages of PAs over existing flexible solutions, and then propose a PA-enabled ISAC framework that accommodates both uplink and downlink communication while being compatible with passive and active sensing targets. Within this framework, we identify representative application scenarios, discuss major design challenges, and highlight critical enabling techniques. A numerical case study demonstrates how PA reconfigurability affects the communication-sensing rate trade-off. We also outline open issues to guide further PA-ISAC research for future 6G networks.