The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2014
Filed:
Jan. 31, 2011
Shaomin MO, Montville, NJ (US);
John A. Gu, Rockaway, NJ (US);
Ming Luo, Fairfax, VA (US);
Reza Ghanadan, Berkeley Heights, NJ (US);
Joseph Farkas, Merrimack, NH (US);
John A. Tranquilli, Jr., Merrimack, NH (US);
Shaomin Mo, Montville, NJ (US);
John A. Gu, Rockaway, NJ (US);
Ming Luo, Fairfax, VA (US);
Reza Ghanadan, Berkeley Heights, NJ (US);
Joseph Farkas, Merrimack, NH (US);
John A. Tranquilli, Jr., Merrimack, NH (US);
Collison Communications, Inc., Peterborough, NH (US);
Abstract
A method of providing medium access control for a wireless mobile ad hoc network includes defining a TDMA network timing frame including a data (DATA) zone having one or more time slots structured to support multiuser detection (MUD) of concurrent transmissions during each slot, a negative acknowledgment (NACK) zone during which nodes transmit requests for retransmission of packets destined to but not successfully received by the nodes, a broadcast (BC) zone during which network management messages are broadcast to the nodes, and a control (CTRL) zone. A primary master (PM) node is selected and operates as a source of network time for all the nodes. Each node synchronizes its time to that of the PM node during the CTRL zone in a distributed manner, by exchanging control messages with the PM node or other nodes located one or more hops from the PM node.