Invention Grant
- Patent Title: Method and systems for radio transmission with distributed cyclic delay diversity
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Application No.: US15838607Application Date: 2017-12-12
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Publication No.: US10237055B1Publication Date: 2019-03-19
- Inventor: Kyeong Jin Kim , Philip Orlik
- Applicant: Mitsubishi Electric Research Laboratories, Inc.
- Applicant Address: US MA Cambridge
- Assignee: Mitsubishi Electric Research Laboratories, Inc.
- Current Assignee: Mitsubishi Electric Research Laboratories, Inc.
- Current Assignee Address: US MA Cambridge
- Agent Gene Vinokur; James McAleenan; Hironori Tsukamoto
- Main IPC: H04L7/08
- IPC: H04L7/08 ; H04L7/00 ; H04B1/7073 ; H04B1/7097 ; H04L27/26 ; H04B7/06

Abstract:
Systems and methods for a communication system including a set of transmitters, wherein operations of the set of transmitters are synchronized with an accuracy bound by a synchronization error. A controller forms a message with ordered symbols including data symbols and at least one identification symbol, and controls transmitters from the set of transmitters to transmit the message using a cyclic delay diversity (CDD). Wherein each transmitting transmitter prior to transmitting, circularly rotates the ordered symbols of the message with a unique shift, then copies some symbols located at an end of the message. Wherein a number of the copied symbols is based on a predetermined cyclic prefix length, into a first position in the rotated message, to form a transmitter identifiable message, and transmits via each transmitting transmitter the transmitter identifiable message.
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