Invention Grant
- Patent Title: Link acquistion in directional wireless systems
-
Application No.: US14986471Application Date: 2015-12-31
-
Publication No.: US09698885B1Publication Date: 2017-07-04
- Inventor: Sanjai Kohli , Djordje Tujkovic , Kirshna Gomadam
- Applicant: Facebook, Inc.
- Applicant Address: US CA Menlo Park
- Assignee: Facebook, Inc.
- Current Assignee: Facebook, Inc.
- Current Assignee Address: US CA Menlo Park
- Main IPC: H04K1/10
- IPC: H04K1/10 ; H04B7/06 ; H04B7/0408 ; H04L7/00

Abstract:
A procedure to establish a link in a directional wireless system where two nodes cannot listen to each other unless optimized beamforming pair is used and timing and framing synchronization is acquired. The procedure determines a set of beamforming pairs that the nodes can use for communication in addition to acquiring the framing and timing synchronization. Training packets are periodically transmitted by a transmitter while a receiver listens in each of a number of receive directions. Training packets are sent N times in N directions while a receiver listens in each of M receive directions until all N×M possible transmit and receive direction pair possibilities are tried. The receiver informs the transmitter which transmit and receive direction pairs were successful in creating communication links between the nodes.
Public/Granted literature
- US20170195025A1 Link Acquistion in directional wireless systems Public/Granted day:2017-07-06
Information query