公开(公告)号：AU767841B2

公开(公告)日：2003-11-27

申请号：AU6530599

申请日：1999-12-16

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： PINARD PATRICK ,  KAWAGUCHI DEAN

IPC: H04L29/08 ,  G06K17/00 ,  H04L12/28 ,  H04L29/06 ,  H04W48/20 ,  H04W52/02 ,  H04W84/12 ,  H04L12/26

Abstract: A communications network comprising a wireless local area network includes a plurality of access points connected to a host computer and each other, and a plurality of mobile units with each mobile unit being arranged for association with at least one access point. The mobile units are arranged to periodically scan for and identify the most eligible access point for association at the highest data rate on the basis of a performance criteria at the current data rate.

公开(公告)号：CA2506121C

公开(公告)日：2010-09-21

申请号：CA2506121

申请日：1996-10-01

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： PINARD PATRICK ,  HEIMAN FREDERIC

IPC: H04W48/20 ,  G01S5/02 ,  H04W4/04 ,  H04W84/12

Abstract: A data communications network including a number of stationary access points and a number of mobile units. Each mobile unit is configured to scan for and select a most eligible access point for association therewith on the basis of received access point signal quality and loading factors at the access point. A physical area is defined within which all mobile units must be kept and access points are provided adjacent the exit point(s) from the physical area.

公开(公告)号：DE69637751D1

公开(公告)日：2009-01-02

申请号：DE69637751

申请日：1996-10-28

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： PINARD PATRICK ,  HEIMAN FREDERIC

IPC: H04L12/28 ,  G06K7/00 ,  G06K17/00 ,  H04B1/707 ,  H04B1/713 ,  H04B1/7156 ,  H04L5/14 ,  H04L12/56 ,  H04W48/16 ,  H04W48/20 ,  H04W84/12 ,  H04W88/06

Abstract: A communications network comprising a cellular local area wireless network includes a plurality of access points (5) connected to a house computer (4) and each other, and a plurality of mobile units (2) each mobile unit being arranged for association with an access point. The mobile units are arranged to periodically scan for and identify the most eligible access point for association on the basis of the criteria of best quality signal strength and loading factor. In order to identify when mobile units are being removed from a predetermined area, access points having directional antennae (22) are situated adjacent exit points (21) to detect when mobile units are in a vicinity.

公开(公告)号：CA2186923A1

公开(公告)日：1997-04-28

申请号：CA2186923

申请日：1996-10-01

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： PINARD PATRICK ,  HEIMAN FREDERIC

IPC: G06K7/00 ,  G06K17/00 ,  H04B1/707 ,  H04B1/713 ,  H04B1/7156 ,  H04L5/14 ,  H04L12/28 ,  H04L12/56 ,  H04W48/16 ,  H04W48/20 ,  H04W84/12 ,  H04W88/06 ,  H04Q7/36 ,  H04Q7/32

Abstract: A communications network comprising a cellular local area wireless network includes a plurality of access points connected to a housed computer and each other, and a plurality of mobile units each mobile unit being arranged for association with an access point. The mobile units are arranged to periodically scan for and identify the most eligible access point for association on the basis of the criteria of best quality signal strength and loading factor. In order to identify when mobile units are being removed from a predetermined area, access points having directional antennae are situated adjacent exit points to detect when mobile units are in a vicinity.