公开(公告)号：PL178086B1

公开(公告)日：2000-02-29

申请号：PL31667195

申请日：1995-09-08

Applicant: IBM

Inventor： BAKER MURRAY C ,  BHATTACHARYA PARTHA P ,  CHEN JEANE S C ,  CHEUNG ROGER Y M ,  KRISHNA ARVIND ,  REISSNER PETER E ,  NAGHSHINEH MAHMOUD

IPC: H04L12/28 ,  H04L12/56 ,  H04W40/24 ,  H04W40/28 ,  H04W40/36 ,  H04W92/02 ,  H04Q11/04

Abstract: A method of routing packets through a fixed source routing communications network from and to mobile units. With this invention an initial access point is determined when a communications session is established to or from a mobile unit through the network. Location information is updated each time the mobile unit moves out of the range of one access point and into the range of another access point of the network. When packets for the session are to be transmitted to the mobile unit from the wired network, the packets are forwarded from the initial access point to a current access point, which by definition is in the range of the mobile unit. When packets for the session are to be transmitted from the mobile unit and to the wired network, the access point intercepts these packets and routes them to their destination and/or initiates route discovery to those destinations. When packets are to be transmitted between mobiles at different access points. The packets are sent between the current access points and not through the home access points.

公开(公告)号：CZ9603749A3

公开(公告)日：1997-04-16

申请号：CZ374996

申请日：1995-06-15

Applicant: IBM

Inventor： CHEUNG ROGER Y M ,  REISSNER PETER E ,  MCKAY DANNY N

IPC: H04B7/26 ,  H04L12/28

CPC classification number: H04W88/08 ,  H04W24/00 ,  H04W48/20 ,  H04W84/12 ,  H04W88/04 ,  H04W92/02

公开(公告)号：HU9603625D0

公开(公告)日：1997-02-28

申请号：HU9603625

申请日：1995-06-15

Applicant: IBM

Inventor： CHEUNG ROGER Y M ,  MCKAY DANNY N ,  REISSNER PETER E

IPC: H04B7/26 ,  H04L12/28

Abstract: An internetworking node for providing internetworking services for mobile wireless nodes. Each mobile wireless node is associated with at the most one internetworking node. Each mobile wireless node selects which internetworking node it will associate with. The internetworking node will then act for all wireless nodes associated to it in relaying messages between wireless nodes or between a wired Local Area Network (LAN) and the wireless nodes.

公开(公告)号：CA2129200A1

公开(公告)日：1996-01-30

申请号：CA2129200

申请日：1994-07-29

Applicant: IBM CANADA

Inventor： BAKER MURRAY C ,  CHEUNG ROGER Y M ,  PERKINS CHARLES E ,  REISSNER PETER E

IPC: H04L12/28 ,  H04L12/46

Abstract: An internetworking node for providing internetworking services for mobile wireless nodes is disclosed. Each mobile wireless node is associated with at the most one internetworking node. Each mobile wireless node selects which internetworking node it will associate with. The internetworking node will then act for all wireless nodes associated to it in relaying messages between wireless nodes or between a wired lane and the wireless nodes. A tracking mechanism for such a system which maintains a table of all the internetworking nodes the wireless node has recently heard and deleting all such internetworking nodes which have not been heard recently is disclosed. A switching mechanism for such a system for determining when the wireless mobile node should switch its association from one internetworking node to another is also disclosed. The switching mechanism determines whether a particular internetworking node overheard by the mobile wireless node has been heard recently, and if not will associate with such an internetworking node. Otherwise the wireless node maintains its current association, with a particular internetworking node until a failure to communicate occurs or the said tracking mechanism deletes its reference to the said internetworking node.