數字中繼器

數字中繼器

  • 數字中繼器
    ART/138CP
    20120611 - 20131211
    13319

    許廣然先生
    1. Hardware Platform (Industry): ICS Digital Repeater Unit: One FPGA (Stratix or Cyclone or Arria or equivalent) together with the RF transceiver and power amplifier. The FPGA will implement DPD for PA linearization and ICS for interference cancellation. RF Transceiver Board: Using third-party components, the RF transceiver will convert the IF to RF and vice versa for GSM multi-carrier/3G/4G (2 standards dependent on customer feedback). Power Amplifier: Power amplifier with a signal bandwidth of 2-25 MHz for thermal efficiency improvement. Weatherproof Enclosure Service & Donor Antennas Pair of antennas with high front to back ratios and high isolation 2. Hardware Feasibility Study (Compact): ICS Digital Repeater Unit (Compact and Semi-Portable): One FPGA (Stratix or Cyclone or Aria or equivalent) together with the RF transceiver and power amplifier. The FPGA will implement DPD for PA linearization and ICS for interference cancellation. RF Transceiver Board: Using third-party components, the RF transceiver will convert the IF to RF and visa versa for emergency access bands. Power Amplifier: Power amplifier with a signal bandwidth of 2-25 MHz for thermal efficiency improvement. Weatherproof and Harsh environments Enclosure Service & Donor Antennas (Compact) Pair of antennas with high front to back ratios and high isolation 3. Technical Design Documents for each hardware platform
    Altera [贊助機構] 深圳中科創迪通訊技術有限公司 [贊助機構]

    這個項目的重點是開發一個新的先進射頻和天線技術平台。本平台的目標應用是廣播和通信技術。本項目將集中在三方面:1)結合干擾消除方案2)功率放大器的數字預失真(DPD)技術3)先進的功率放大器以配和用於 3G和4G網絡低成本及緊湊型設計的中繼器。功率放大器的DPD是實現中繼器可重構必不可少的技術(軟件升級,而不是硬件升級)和降低成本的平台,允許使用較低成本的功率放大器。本項目研發的干擾消除技術將提高前端和後端天線之間的隔離30dB,允許天線之間的距離減少以實現緊湊型的中繼單元。數字放大器採用數字控制的電路,以減少熱耗散的能量,使數字中繼器使用較小的散熱器。本平台項目以以往項目累積的經驗和知識產權如有源天線,波束成形技術,隔離技術,建立先進的前端和後端天線系統;結合功率放大器的DPD和新的干擾消除技術。 無論是利基市場或是大型基礎設施市場,本平台開發的技術能立即應用。本天線和射頻組將與應科院的其他組以及業界一起開發這個新的平台。