Patents by Inventor Hajo Bakker

Hajo Bakker 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: 8081689
    Abstract: The invention concerns a method for performing frequency selective control channel scheduling in networks using an OFDM spectrum, whereby a base station (BS1-BS8) broadcasts on at least one predefined subcarrier which is known to all mobile terminals (T1-T4) a signaling information common to all mobile terminals (T1-T4) indicating the position of at least one subcarrier of at least one frequency selective shared control channel and at least one identification of at least one addressed mobile terminal, the base station (BS1-BS8) sends signaling information for said at least one addressed mobile terminal at the indicated position of said at least one subcarrier of said at least one frequency selective shared control channel, and at least one mobile terminal (T1-T4) measures at least one subcarrier of said at least one frequency selective shared control channel for channel quality estimation, a base station (BS1-BS8), a mobile terminal (T1-T4) and a network (CN) therefor.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: December 20, 2011
    Assignee: Alcatel Lucent
    Inventors: Ralph Ballentin, Stephen Kaminski, Hajo Bakker, Chan Zhou, Gerhard Wunder
  • Publication number: 20110287805
    Abstract: The invention relates to a telecommunication method in a base station of a mobile communication system, the mobile communication system comprising a plurality of base stations, a communication link being established between the base station and a user equipment, the method comprising the following steps performed by the base station: selecting one of the plurality of base stations as a target base station for a handover of the user equipment; transmitting a handover request to the target base station; receiving a handover request acknowledgement from the target base station, the handover request acknowledgment being indicative of at least one physical resource of the target base station; and transmitting a handover command to the user equipment via the communication link using the at least one physical resource. The handover command being descriptive of information required for accessing the target base station.
    Type: Application
    Filed: January 29, 2010
    Publication date: November 24, 2011
    Inventors: Stephen Kaminski, Thorsten Wild, Hajo Bakker, Danish Aziz, Rolf Sigle, Heidrum Grob-Lipski, Uwe Doetsch, Michael Schmidt
  • Patent number: 8010147
    Abstract: The invention relates to a method for uplink transmission interference limitation in a wireless communications system comprising a mobile network arranged in a radio cell configuration, each cell comprising a serving base station providing communications service to at least one user terminal inside the cell area, the method comprising the steps of selecting and forcing a first group of cell-associated terminals to stop transmission for a certain period of time selecting a second group of terminals for measuring the signal power present at their uplink transmission frequency; calculating an indication of the interference level generated by at least the second group of selected terminals in at least one neighboring cell; selecting a third group of cell-associated terminals and setting their uplink transmission power to a certain value according to the calculated interference level.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: August 30, 2011
    Assignee: Alcatel Lucent
    Inventors: Stephen Kaminski, Hajo Bakker
  • Patent number: 8005085
    Abstract: The invention concerns a method for distribution of data packets (MBMS Data) from an access network node (aGW) via at least one base station (eNB) to at least one user terminal (UE) in a single frequency mobile communication network whereby information (T1(tx), T2(tx)) is added in the access network node (aGW) to the data packets (MBMS Data) indicating in which time intervals the data packets (MBMS Data) have to be sent from the at least one base station (eNB) to the at least one user terminal (UE), and information (SN) is added in the access network node (aGW) to the data packets (MBMS Data) indicating the order of the distribution of the data packets (MBMS Data), an access network node (aGW), a base station (eNB) and a single frequency mobile communication network therefor.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: August 23, 2011
    Assignee: Alcatel Lucent
    Inventors: Hajo Bakker, Dietrich Zeller
  • Patent number: 7764663
    Abstract: The invention concerns a method for minimizing the interference in a cellular OFDM communication network, wherein mobile stations are divided into groups according to the radio channel quality, the interference levels of mobile stations which belong to a first group of mobile stations with a radio channel quality which is lower than that of at least one other group are combined into a common interference level, the sub-carriers of the OFDM communication network are divided into quantities according to the common interference level of the first group of mobile stations and sub-carriers which belong to a first quantity with a common interference level which is lower than that of at least one other group are selected as preferred subcarriers for transmission to the mobile stations that belong to the first group.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: July 27, 2010
    Assignee: Alcatel Lucent
    Inventors: Stephen Kaminski, Hajo Bakker, Rupert Rheinschmitt
  • Patent number: 7675894
    Abstract: The present invention relates to a method for gaining channel quality information at a base station of a multi-carrier radio communication system having a plurality of orthogonal frequency sub-carriers. According to the present invention, the method comprises the steps of: measuring a Channel Frequency Response at a user terminal of said multi-carrier radio communication channel; extracting samples of said Channel Frequency Response represented in the frequency domain at a predefined oversampling factor; sending said samples on a signaling channel from said user terminal to said base station; performing a windowing operation on the received samples in the time domain; determining a channel quality information for each of said sub-carriers on a representation in the frequency domain of said received samples after windowing operation.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: March 9, 2010
    Assignee: Alcatel Lucent
    Inventors: Gerhard Wunder, Zhou Chan, Stephen Kaminski, Hajo Bakker
  • Patent number: 7630347
    Abstract: The present invention relates to an interface unit comprising a first component for establishing a connection to a radio network controller of a radio network sub-system by means of a first communication protocol, a second component for establishing a connection to at least one access point of a wireless local area network by means of a second communication protocol, a third component for converting the second communication protocol to the first communication protocol and for converting the first communication protocol to the second communication protocol and a fourth component for providing data indicative of a load situation of at least one access point to the radio network controller.
    Type: Grant
    Filed: September 17, 2003
    Date of Patent: December 8, 2009
    Assignee: Alcatel
    Inventors: Stephen Kaminski, Hajo Bakker, Klaus Keil, Manfred Litzenburger
  • Publication number: 20090185520
    Abstract: A method of providing a multimedia multicast service in a digital wireless communication network, the network having a network controller for controlling of at least one base station, comprising establishing a single data stream from the network controller to the base station for transmitting of multimedia data, by means of a single lub link or transport bearer and establishing a separate communication link and a separate data queue for each user equipment in a radio cell of the base station which requests the multimedia data.
    Type: Application
    Filed: January 5, 2009
    Publication date: July 23, 2009
    Applicant: Alcatel
    Inventors: Hajo BAKKER, Dietrich Zeller
  • Patent number: 7545763
    Abstract: The present invention relates to a method for sending channel quality information in a multi-carrier radio communication system comprising at least one mobile terminal and at least one base station, said channel quality information being sent on a signaling channel by said mobile terminal to said base station.
    Type: Grant
    Filed: January 6, 2006
    Date of Patent: June 9, 2009
    Assignee: Alcatel Lucent
    Inventors: Gerhard Wunder, Chan Zhou, Stephen Kaminski, Hajo Bakker
  • Publication number: 20090116391
    Abstract: The invention relates to a method for controlling the flow of data between an RNC (R) and a base station (BS) of a UMTS mobile communications system with HSDPA capability via an lub interface (I2), where an HS-DSCH Frame Protocol mechanism is implemented in the lub interface (I2) to provide control and data services for the communication of HSDPA user data between the RNC and the base station, wherein a capacity overload control entity (COCU) monitors information about actual lub interface data transport flow (IDF), and when a determined lub interface (I2) transport capacity value is reached, the data transport flow is reduced in the lub interface (I2).
    Type: Application
    Filed: December 24, 2008
    Publication date: May 7, 2009
    Applicant: ALCATEL
    Inventors: Hajo BAKKER, Bernd Haberland, Anne Agin
  • Patent number: 7505771
    Abstract: The present invention relates to a telecommunication method in a wireless cellular telecommunication system having a radio network controller and a base station, where the method receives a number of orthogonal variable spreading factor codes from the radio network controller by the base station, evaluates a load situation by the base station, and in case the orthogonal variable spreading factor codes received from the radio network controller are insufficient for the load situation: requesting a change of the number of orthogonal variable spreading factor codes from the radio network controller by the base station.
    Type: Grant
    Filed: July 19, 2004
    Date of Patent: March 17, 2009
    Assignee: Alcatel
    Inventors: Klaus Keil, Stephen Kaminski, Hajo Bakker, Siegfried Klein, Günther Herzog
  • Patent number: 7489654
    Abstract: A method for controlling the flow of data between an RNC and a base station of a UMTS mobile communications system with HSDPA capability via an Iub interface, where an HS-DSCH Frame Protocol mechanism is implemented in the Iub interface to provide control and data services for the communication of HSDPA user data between the RNC and the base station, wherein a capacity overload control entity monitors information about actual Iub interface data transport flow, and when a determined Iub interface transport capacity value is reached, the data transport flow is reduced in the Iub interface.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: February 10, 2009
    Assignee: ALCATEL
    Inventors: Hajo Bakker, Bernd Haberland, Anne Agin
  • Patent number: 7433707
    Abstract: The invention relates to a telecommunication method comprising the steps of: receiving of a required quality of service parameter set from a core network by a radio network controller, selecting a sub-set of air interfaces from a set of air interfaces, the sub-set containing air interfaces, which support the required quality of service parameter set, providing the sub-set to a node of a radio access network having the set of air interfaces, selecting an air interface from the sub-set by the node for providing the required quality of service to a user equipment.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: October 7, 2008
    Assignee: ALCATEL
    Inventors: Stephen Kaminski, Hajo Bakker, Bernd Haberland
  • Publication number: 20080233886
    Abstract: The invention concerns a method for scheduling of service data intended to be sent from a base station (BS1) over radio interfaces to a user terminal (UE1) by means of at least one control message sent from the base station (BS1) to the user terminal (UE1), whereby said at least one control message comprises or allows for a determination of at least one of the orders when the user terminal (UE1) shall perform reception of downlink data and when and under which circumstances the user terminal (UE1) shall send HARQ feedback information in upcoming transmission time intervals (TTI), a base station (BS1), a user terminal (UE1) and a communication network therefor.
    Type: Application
    Filed: March 18, 2008
    Publication date: September 25, 2008
    Applicant: Alcatel Lucent
    Inventors: Stephen KAMINSKI, Uwe Doetsch, Osman Aydin, Hajo Bakker, Klaus Keil, Markus Gruber
  • Publication number: 20080232332
    Abstract: The invention concerns a method for scheduling of service data intended to be sent from a user terminal (UE1) over radio interfaces to a base station (BS1) by means of at least one control message sent from the base station (BS1) to the user terminal (UE1), whereby said at least one control message at least indicates or allows for a determination of a change of predefined transmission time intervals (TTI) in which the user terminal (UE1) shall send transport blocks comprising service data to the base station (BS1), a base station (BS1), a user terminal (UE1) and a communication network therefor.
    Type: Application
    Filed: March 18, 2008
    Publication date: September 25, 2008
    Applicant: Alcatel Lucent
    Inventors: Stephen KAMINSKI, Uwe Doetsch, Aydin Osman, Hajo Bakker, Klaus Keil, Markus Gruber
  • Publication number: 20080101334
    Abstract: The invention concerns a method for distribution of data packets (MBMS Data) from an access network node (aGW) via at least one base station (eNB) to at least one user terminal (UE) in a single frequency mobile communication network whereby information (T1(tx), T2(tx)) is added in the access network node (aGW) to the data packets (MBMS Data) indicating in which time intervals the data packets (MBMS Data) have to be sent from the at least one base station (eNB) to the at least one user terminal (UE), and information (SN) is added in the access network node (aGW) to the data packets (MBMS Data) indicating the order of the distribution of the data packets (MBMS Data), an access network node (aGW), a base station (eNB) and a single frequency mobile communication network therefor.
    Type: Application
    Filed: October 25, 2007
    Publication date: May 1, 2008
    Applicant: Alcatel Lucent
    Inventors: Hajo BAKKER, Dietrich Zeller
  • Publication number: 20080039131
    Abstract: The invention relates to a method for uplink transmission interference limitation in a wireless communications system comprising a mobile network arranged in a radio cell configuration, each cell comprising a serving base station providing communications service to at least one user terminal inside the cell area, the method comprising the steps of selecting and forcing a first group of cell-associated terminals to stop transmission for a certain period of time selecting a second group of terminals for measuring the signal power present at their uplink transmission frequency; calculating an indication of the interference level generated by at least the second group of selected terminals in at least one neighbouring cell; selecting a third group of cell-associated terminals and setting their uplink transmission power to a certain value according to the calculated interference level.
    Type: Application
    Filed: August 8, 2007
    Publication date: February 14, 2008
    Applicant: Alcatel Lucent
    Inventors: Stephen KAMINSKI, Hajo Bakker
  • Publication number: 20070173257
    Abstract: A method of supporting soft/softer handover mechanisms for High-Speed Uplink Packet Access (HSUPA) in a cellular communication network (1) with a plurality of base stations (2.1, 2.2), wherein said handover mechanisms include establishing an additional link to at least one additional network cell from a User Equipment (UE) (3) capable of using HSUPA and linked to a serving network cell (2.1a) via a first link. The proposed method comprises the steps of: upon detection of a soft/softer handover request from the user equipment (3), checking by a serving base station (2.1) of the plurality of base stations if at least a first predefined processing capacity is available at the additional network cell for allowing the requested handover; if said first processing capacity is available, controlling of said handover by means of the serving base station (2.
    Type: Application
    Filed: November 16, 2006
    Publication date: July 26, 2007
    Inventors: Hajo Bakker, Dietrich Zeller
  • Publication number: 20070165569
    Abstract: The invention concerns a method for minimising the interference in a cellular OFDM communication network (CN), wherein mobile stations (T1-T4) are divided into groups according to the radio channel quality (RCQTvec), the interference levels (NLTvec) of mobile stations (T1, T2) which belong to a first group of mobile stations (T1, T2) with a radio channel quality (RCQTvec) which is lower than that of at least one other group are combined into a common interference level (NLGvec), the sub-carriers (SC) of the OFDM communication network (CN) are divided into quantities according to the common interference level (NLGvec) of the first group of mobile stations (T1, T2) and sub-carriers (SC) which belong to a first quantity with a common interference level (NLGvec) which is lower than that of at least one other group are selected as preferred sub-carriers for transmission to the mobile stations (T1, T2) that belong to the first group, and a base station (BS1) and mobile station (T1-T4) for this.
    Type: Application
    Filed: January 16, 2007
    Publication date: July 19, 2007
    Applicant: Alcatel Lucent
    Inventors: Stephen Kaminski, Hajo Bakker, Rupert Rheinschmitt
  • Publication number: 20070153929
    Abstract: The invention concerns a method for performing frequency selective control channel scheduling in networks using an OFDM spectrum, whereby a base station (BS1-BS8) broadcasts on at least one predefined subcarrier which is known to all mobile terminals (T1-T4) a signaling information common to all mobile terminals (T1-T4) indicating the position of at least one subcarrier of at least one frequency selective shared control channel and at least one identification of at least one addressed mobile terminal, the base station (BS1-BS8) sends signaling information for said at least one addressed mobile terminal at the indicated position of said at least one subcarrier of said at least one frequency selective shared control channel, and at least one mobile terminal (T1-T4) measures at least one subcarrier of said at least one frequency selective shared control channel for channel quality estimation, a base station (BS1-BS8), a mobile terminal (T1-T4) and a network (CN) therefor.
    Type: Application
    Filed: December 18, 2006
    Publication date: July 5, 2007
    Inventors: Ralph Ballentin, Stephen Kaminski, Hajo Bakker, Chan Zhou, Gerhard Wunder