DS-CDMA integration spreading coherent receiver

US7308017B2 · kind B2 · utility

Assignees

• The Research Institute of Telecommunication Transmission, MII · CN
• SOUTHEAST UNIVERSITY · CN

Inventors

• Liangcheng Jiang · 安丰镇, CN
• Xiaohu You · Nanjing, CN
• Junchao Wang · Beijing, CN
• Jinghong Guo · Torrance, US
• Shixin Cheng · 林湖乡, CN

Key dates

• Filing date: Dec 18, 2001
• Grant date: Dec 11, 2007
• Expiry date: Aug 7, 2023

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B1/712
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

The Spread Spectrum integration coherent receiver of the invention employs a time division multiplexing correlator bank and thus obtained coherent channel evaluator as a core. The receiver can execute initial PN synchronization, RAKE diversity coherent combination, AFC and adjacent cell search and combination receipt, and soft handoff. Further, “part capture in parallel based on slide energy window” and “tracking loop based on energy window barycenter” are introduced into the receiver of the invention, thereby simplifying the structure of the RAKE receiver. The receiver is capable of overcoming multipath fading, ensuring the RAKE receipt performance.