Patents by Inventor Ian Herwono

Ian Herwono has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8019346
    Abstract: The invention provides a method for assisting handover of a user terminal's, UT's, communication session in an integrated multi RAT network, said method to be carried out by an RNCI being installed in said network, said method comprising the following steps:— receiving a “Handover Candidate” message comprising a message type identifier information element identifying said message as being a “Handover Candidate” message and which message identifies said session and which message further identifies a candidate RNC of said network, wherein said candidate RNC constitutes an RNC handover candidate for said session,— establishing the identity of said RNC by investigating said message,— associating said communication session with said candidate RNC identified in the previous step. The invention provides an RNC1, RNC2, and software, realising the method according to the invention.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: September 13, 2011
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Joachim Sachs, Ian Herwono
  • Patent number: 7961875
    Abstract: The invention provides a method for ciphering and transmitting data, to be used by a communication device being arranged to transmit data through a first data port (241, 2002) according to a first transmission protocol, and to form ciphered exploiting a ciphering algorithm being fed with a first set of ciphering parameters, comprising a ciphering parameter CP5; said device being further arranged to transmit data through a second data port (242, 2003) according to an alternative transmission protocol, said method comprising the steps of: defining an alternative ciphering parameter, ACP, having a bit length equal to the bit length of CP5, forming a second set of ciphering parameters by substituting said CP5 with said ACP in said first set of ciphering parameters, forming ciphered data by subjecting the data to said ciphering algorithm being fed with said second set of ciphering parameters, transmitting said ciphered data through said second data port (242, 2003).
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: June 14, 2011
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Joachim Sachs, Ian Herwono
  • Publication number: 20110030043
    Abstract: A method of authenticating a user to a service provider by means of an authentication provision unit, the method comprising: in a first stage of the method: receiving credentials from a user; determining whether the credentials received from the user represent a valid logon; and if that determination is positive: generating at least one network address comprising a domain address and at least one instance parameter, the instance parameter uniquely identifying the user and the instance of generation of the network address; and providing the network address to the user; and in a second stage of the method: receiving a parameter from a service provider; determining whether the received parameter indicates a valid attempt to log on to the service provider by checking that the received parameter matches an instance parameter that has previously been issued to a user and that has not previously been received from a service provider; and if that determination is positive: signalling to the service provider over a se
    Type: Application
    Filed: February 19, 2009
    Publication date: February 3, 2011
    Inventors: James E. Jones, Ian Herwono
  • Publication number: 20090287922
    Abstract: The present invention relates to communications, and in particular though not exclusively to forming a secure connection between two untrusted devices. The present invention provides a method of securely connecting a first device (A) to a second device (B) using a third party authentication server (AS) coupled to the second device, the first device and the authentication server both having first device shared secret data (SSDa) and the second device and the authentication server both having second device shared secret data (SSDb).
    Type: Application
    Filed: May 31, 2007
    Publication date: November 19, 2009
    Inventors: Ian Herwono, Paul W. Hodgson
  • Publication number: 20090131053
    Abstract: The invention provides a method, to be used by a RNC (230), for assisting a handover of a data session from a first routing path, associated with a first access network, to an alternative routing path, associated with an alternative access network, wherein data is routed over said first access network to a UT (240) by binding a session identifier to a first routing identifier, wherein said session identifier and said first routing identifier are defined in accordance with a standard protocol routing scheme of said first access network, the method comprising the following steps: —receiving a capability message uniquely identifying said UT (240) according to a standard protocol routing scheme of said first access network and according to an alternative standard protocol routing scheme of said alternative access network, —creating an alternative routing identifier for said session complying with the standard protocol routing scheme of said alternative access network and associating said alternative routing ident
    Type: Application
    Filed: April 29, 2005
    Publication date: May 21, 2009
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Joachim Sachs, Ian Herwono
  • Publication number: 20080205345
    Abstract: The invention provides a method for assisting handover of a user terminal's, UT's, communication session in an integrated multi RAT network, said method to be carried out by an RNCI being installed in said network, said method comprising the following steps:— receiving a “Handover Candidate” message comprising a message type identifier information element identifying said message as being a “Handover Candidate” message and which message identifies said session and which message further identifies a candidate RNC of said network, wherein said candidate RNC constitutes an RNC handover candidate for said session,— establishing the identity of said RNC by investigating said message,— associating said communication session with said candidate RNC identified in the previous step. The invention provides an RNC1, RNC2, and software, realising the method according to the invention.
    Type: Application
    Filed: September 30, 2005
    Publication date: August 28, 2008
    Inventors: Joachim Sachs, Ian Herwono
  • Publication number: 20080192925
    Abstract: The invention provides a method for ciphering and transmitting data, to be used by a communication device being arranged to transmit data through a first data port (241, 2002) according to a first transmission protocol, and to form ciphered exploiting a ciphering algorithm being fed with a first set of ciphering parameters, comprising a ciphering parameter CP5; said device being further arranged to transmit data through a second data port (242, 2003) according to an alternative transmission protocol, said method comprising the steps of: defining an alternative ciphering parameter, ACP, having a bit length equal to the bit length of CP5, forming a second set of ciphering parameters by substituting said CP5 with said ACP in said first set of ciphering parameters, forming ciphered data by subjecting the data to said ciphering algorithm being fed with said second set of ciphering parameters, transmitting said ciphered data through said second data port (242, 2003).
    Type: Application
    Filed: May 16, 2005
    Publication date: August 14, 2008
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Joachim Sachs, Ian Herwono
  • Publication number: 20080192696
    Abstract: The invention provides a method for assisting handover of a communication session associated with a UT from a first radio access point, AP1, to a second radio access point, AP2, in a radio access network, said method to be carried out by said AP1 and comprising the steps of:—receiving a handover intention notify message comprising a session identifier identifying said session and indicating that said UT intends to perform a session handover,—assigning said session a buffer memory space in a memory of said AP1,—buffering downlink data packets addressed to said UT in said buffer memory as a response on receiving said handover intention notify message. The invention further provides a UT, an AP1, AP2, an AR, and software program/s co-operating and/or realizing the method according to the invention. The invention provides a smoother handover.
    Type: Application
    Filed: July 25, 2005
    Publication date: August 14, 2008
    Inventors: Joachim Sachs, Ian Herwono
  • Publication number: 20080095112
    Abstract: A method and devices for performing a handover of a data unit based communication that involves a sequence of data units from a first connection (51) between a first sender (10) and a receiver (4) to a second connection (52) between a second sender (20) and said receiver (4), which comprises indicating to thc receiver (4) a reference data unit among data units provided to both the first sender (10) and the second sender as a part of the handover, and where the receiver, based on the reference data unit, keeps a record for identifying such data units among those data units provided to both the first sender (10) and the second sender (20) that were sent over the first connection (51) and successfully.received by the receiver (4), prior to the communication having been passcd to the second communication (52).
    Type: Application
    Filed: May 14, 2004
    Publication date: April 24, 2008
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Henning Wiemann, Joachim Sachs, Ian Herwono