A 45nm CMOS RF-to-Bits LTE/WCDMA FDD/TDD 2×2 MIMO Base-Station Transceiver SoC with 200MHz RF Bandwidth

📋 论文概要

提出一种45nm CMOS工艺的RF-to-Bits LTE/WCDMA FDD/TDD 2×2 MIMO基站收发机SoC，支持200MHz射频带宽，实现高度集成，满足大规模MIMO基站对射频收发机在体积和性能上的需求。

💡 主要创新点

• 采用RF-to-Bits直接数字化架构，将射频前端、混合信号和数字基带集成在单芯片SoC中，显著提升集成度。
• 支持FDD/TDD双工方式和LTE/WCDMA多模操作，具有200MHz宽带能力，适应不同基站部署场景。

📄 原文摘要

S. Uppathil1, S. Kaylor1, A. Akour1, V. Wang1, M. Fares1, F. Dulger1, A. Frank1, D. Ghosh1, S. Madhavapeddi1, H. Safiri1, J. Mehta1, A. Jain1, H. Choo1, E. Zhang1, C. Sestok1, C. Fernando1, Rajagopal K.A. 2, S. Ramakrishnan2, V. Sinari2, V. Baireddy2 Texas Instruments, Dallas, TX, 2 Texas Instruments, Bangalore, India 1 Increasing mobile data demands are pushing cellular network capacity. Massive MIMO base stations with large antenna arrays and smaller cell sizes demand higher integration in radio transceivers than what is available [1]. We present a 45nm CMOS transceiver SoC with 4x5Gbps SerDes interface, supporting all 3GPP bands from 400MHz to 4GHz with 200MHz instantaneous RF bandwidth (BW). The SoC (Fig. 9.1.1) includes two transmitters (TX), two receivers (RX), and one high-BW receiver (FBRX) for TX digital pre-distortion feedback (DPD), antenna tuning or network listening. Three integrated RF PLLs

👥 作者与机构

N. Klemmer1, S. Akhtar1, V. Srinivasan1, P. Litmanen1, H. Arora1,