The Price of the Golden 6G Band: Evaluation of Beam Management Effort in FR3

2026-09-15

AI Summary

本文研究了6G网络FR3频段的波束管理问题，通过评估波束对齐灵敏度、切换率等指标，指出实现稳定高吞吐量需大量波束管理。

Abstract

Frequency Range 3 (FR3), 7.125-24.25 GHz, regarded as the "golden band" for 6G networks, has less challenging propagation characteristics than FR2 while offering much wider bandwidth for high data rate applications than FR1. Reusing existing FR1 infrastructure for FR3 network deployments requires gNodeBs (gNBs) to employ antenna arrays and perform beam management, which has proven challenging at FR2. In this paper, we extensively study and characterize the beam management effort in an FR3 urban network, in terms of: beam alignment sensitivity, number of directional link opportunities, gNB handover and beam switch rates, and beam steering distance. Our results show that achieving a high and stable mobile throughput requires significant beam management effort across FR3 bands. While the beam tracking requirements are less stringent at the lower frequencies due to wider beams, the beam switching rate to a non-adjacent beam is relatively comparable at FR3 and FR2.

Problem

• Beam Management
• FR3
• 6G Networks
• Urban Network
• Mobile Throughput

Innovation

• Beam Management
• Frequency Range 3 (FR3)
• 6G Networks
• gNodeBs (gNBs)
• Beam Switching Rate