Telecommunication system, and data-packets switch, and method

Patent 5974035 Issued on October 26, 1999. Estimated Expiration Date:

December 19, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Method and installation for switching packets
Patent #: 5381409
Issued on: 01/10/1995
Inventor: Folkert de Vries

Method of handover and route diversity in mobile radio communication
Patent #: 5408514
Issued on: 04/18/1995
Inventor: Sakamoto, et al.

Method and apparatus for supporting mobile communications in asynchronous transfer mode based networks
Patent #: 5487065
Issued on: 01/23/1996
Inventor: Acampora, et al.

Cellular communications system having passive handoff
Patent #: 5621786
Issued on: 04/15/1997
Inventor: Fischer, et al.

System and method for increasing throughput of inter-network gateways using a hardware assist engine
Patent #: 5691985
Issued on: 11/25/1997
Inventor: Lorenz, et al.

Soft handoff in a cellular telecommunications system Patent #: 5722074
Issued on: 02/24/1998
Inventor: Muszynski

Inventor

Norp, Antonius Hendrikus Johannes

Assignee

Koninklijke PTT Nederland N.V.

Application

No. 769413 filed on 12/19/1996

US Classes:

370/331, Hand-off control370/401, Bridge or gateway between networks370/465, Adaptive370/471Message having an address header

Examiners

Primary: Pham, Chi
Assistant: Duong, Frank

Attorney, Agent or Firm

Michaelson & Wallace, Michaelson; Peter L.

Foreign Patent References

0 450 708 EP. 04/14/1995
WO 92/22034 WO. 12/14/1992

International Class

H04L 012/56

Foreign Application Priority Data

1996-01-05 NL

Abstract

In a telecommunication system, a mobile terminal is connected, before initiation of a handover procedure, to a first base station, and first data packets flow from the first base station by way of a first link to a data-packets switch which, in response thereto, transmits third data packets by way of a third link. After termination of the handover procedure, the mobile terminal is connected to a second base station, and second data packets flow from the second base station by way of a second link to the data-packets switch which, in response thereto, transmits third data packets by way of the third link. By, during the handover procedure, coupling both the first link and the second link to the third link by way of the data-packets switch, during the handover procedure data packets are switched in an advantageous manner, which requires no great accuracy and no additional analyzing/converting device.

Other References

A.S. Acampora et al, "An Architecture and Methodology for Mobile-Executed Handoff in Cellular ATM Networks", IEEE Journal on Selected Areas in Communications, vol. 12, No. 8, Oct. 1994, pp. 1365-1375
L. Van Hauwermeiren et al., "Requirements for Mobility Support in ATM", Conference Record of IEEE Globecom, Communications: The Global Bridge, San Francisco, California, Nov. 28 -Dec. 2, 1994, pp. 1691-1695
M.J. McTiffin et al., "Mobile Access to an ATM Network Using a CDMA Air Interface", IEEE Journal on Selected Areas in Communications, vol. 12, No. 5, Jun. 1994, pp. 900-908
D. Raychaudhuri et al., "ATM-Based Transport Architecture for Multiservices Wireless Personal Communication Networks", IEEE Journal on Selected Areas in Communications, vol. 12, No. 8, Oct. 1994, pp. 1401-141