Method and device of generating time-varying preamble sequence and pseudorandom noise (PN) binary sequence in direct sequence spread spectrum (DSSS) communications

US8254362B2 · kind B2 · utility

Assignee

• The Boeing Company · US

Inventors

• Xinyu Wang · Beijing, CN
• Igor Elgorriaga · Rancho Palos Verdes, US
• Marcus R. Gahler · Auburn, US
• Robert P. Higgins · Seattle, US
• Yefim Poberezhskiy · Thousand Oaks, US
• Paul R. Norris · Issaquah, US
• Brian J. Hatley · Issaquah, US
• Michael S. Foster · Federal Way, US

Key dates

• Filing date: Jan 9, 2008
• Grant date: Aug 28, 2012
• Expiry date: Apr 24, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W56/003
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

Embodiments of the disclosure provide methods, apparatus, and articles allowing two nodes to communicate in a slot-based direct sequencing spreading communication system. Both a preamble sequence and a payload data spreading PN sequence are generated from the Time of Day and a given user code. Generated sequences are synchronized between two communicating nodes to allow slot-based DSSS communication to take place. Generated sequences also change dynamically from slot to slot to provide waveform security.