Invention Grant
- Patent Title: MIMO slotted aloha (MSA) system
- Patent Title (中): MIMO时隙aloha(MSA)系统
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Application No.: US14029966Application Date: 2013-09-18
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Publication No.: US09585111B2Publication Date: 2017-02-28
- Inventor: Qingyuan Dai , Charles H. Woloszynski
- Applicant: Elbit Systems of America, LLC
- Applicant Address: US TX Fort Worth
- Assignee: Elbit Systems of America, LLC
- Current Assignee: Elbit Systems of America, LLC
- Current Assignee Address: US TX Fort Worth
- Agency: Conley Rose, P.C.
- Main IPC: H04L7/00
- IPC: H04L7/00 ; H04W56/00 ; H04J3/06 ; H04L27/26

Abstract:
A method including receiving at a synchronizing node a first reference frame from a first reference node at a first time and storing a first time value representing the first time, and calculating a timing estimator by subtracting a minimum time value, representing the distance from the synchronizing node to the first reference node, from the first time value. The method includes receiving at the synchronizing node a second reference frame at a second time and transmitting from the synchronizing node to the first reference node a short timing contention time frame. The method includes receiving at the synchronizing node from the first reference node an arrival time value representing the time at which the first reference node received the short timing contention frame and calculating a time drift from the first arrival time value and the second time value and adjusting the timing estimator based on the time drift.
Public/Granted literature
- US20140016626A1 MIMO SLOTTED ALOHA (MSA) SYSTEM Public/Granted day:2014-01-16
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