Patents by Inventor Mirko Schacht

Mirko Schacht 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: 8346256
    Abstract: A method of provisioning multicast services is provided. In an example, the method includes forming a plurality of multicast groups, each of the plurality of multicast groups associated with one of a plurality of first channel quality ranges. A request for a multicast service and an indicator (e.g., a channel quality indicator (CQI)) indicating a channel quality of a mobile unit are received from the mobile unit. The mobile unit is assigned to one of the plurality of multicast groups based on the indicated channel quality and the plurality of first channel quality ranges.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: January 1, 2013
    Assignee: Alcatel Lucent
    Inventors: Stefan Brueck, Mirko Schacht, Hans Peter Schefczik
  • Patent number: 8125947
    Abstract: The present invention provides a method of wireless communication involving at least one mobile unit and at least one base station configured to transmit data over first and second data channels and corresponding first and second control channels. The method includes accessing control information associated with data to be transmitted over the first data channel and mapping the control information to a portion of the second control channel.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: February 28, 2012
    Assignee: Alcatel Lucent
    Inventors: Rainer Bachl, Jens Mueckenheim, Mirko Schacht
  • Patent number: 8005059
    Abstract: Embodiments provided include a method for transmitting a packet to a receiver over primary and supplemental channels in a wireless communication network. Indications of a primary code and a set of N supplemental codes assigned to the receiver are communicated over a control channel. When it is determined that a packet should be transmitted over a supplemental channel, a first portion of the packet and a supplemental channel indicator are transmitted over a same single packet transmission time interval on the primary channel and a second portion of the packet is transmitted over the same single packet transmission time interval on the supplemental channel corresponding to the supplemental channel indicator. The supplemental channel uses an assigned specific supplemental code belonging to the set of N supplemental codes assigned to the receiver. When the packet should not be transmitted over a supplemental channel, the packet is transmitted over the primary channel.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: August 23, 2011
    Assignee: Alcatel Lucent
    Inventors: Jens Mueckenheim, Anil M Rao, Mirko Schacht
  • Patent number: 7965665
    Abstract: In a UMTS wireless communication system a UE autonomously determines that it is going to transit from an active traffic mode into an idle traffic mode and informs the NodeBs in its active set that it is doing so. It does so either by using Layer 1 signaling, using the uplink DPCCH to send a message to the NodeBs indicating the transition, or by using Layer 2 signaling by via MAC PDUs that contain the message, which are delivered on the uplink E-DPDCH to the NodeBs.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: June 21, 2011
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Rainer Walter Bachl, Anil M Rao, Mirko Schacht
  • Patent number: 7920517
    Abstract: A technique is disclosed for determining values of different portions of a total uplink interference, which can be used for scheduling and load control at a base station, for example. A disclosed example includes obtaining measurements from individual users and using those measurements to determine corresponding portions of a total uplink interference at the base station. One portion is associated with users that are controlled by a scheduler for that base station. Another portion is associated with users that are not controlled by that scheduler. Determining each of the portions individually and using a received total wideband power measurement allows for determining each of the major portions of the total uplink interference at a base station.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: April 5, 2011
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Rainer W. Bachl, Jens Mueckenheim, Mirko Schacht
  • Patent number: 7706262
    Abstract: The present invention provides a method of wireless communication. The method includes determining whether a packet includes a voice payload or control information based on at least one property of the packet.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: April 27, 2010
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Michael Link, Mirko Schacht, Sudeep Kumar Palat, Said Tatesh
  • Patent number: 7693529
    Abstract: In the method of scheduling, an order in which mobile stations are scheduled is changed based on at least one transmit beam criteria.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: April 6, 2010
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Mirko Schacht, Peter Jung
  • Patent number: 7689222
    Abstract: In one embodiment of managing the use of channelization codes during soft handoff of a mobile station from a transferring network station to a candidate network station, a determination is made as to whether a field associated with an existing channelization code used by the candidate network station is unused and meets timing criteria associated with a corresponding field received by the mobile station from the transferring network station. Based on this determination, a channelization code for use by the candidate network station in communicating with the mobile station is assigned.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: March 30, 2010
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Roland Johannes Guethaus, Philip Charles Sapiano, Mirko Schacht
  • Patent number: 7675895
    Abstract: The present invention provides a method of wireless telecommunication is provided. The method includes accessing a plurality of first data packets having a first size, accessing at least one second data packet having a second size, the second size being larger than the first size, forming a plurality of third data packets comprising portions of the at least one second data packet based upon the first and second sizes, and selecting at least one of the plurality of first data packets based upon the plurality of third data packets.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: March 9, 2010
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Jens Mueckenheim, Mirko Schacht, Said Tatesh
  • Patent number: 7643539
    Abstract: A technique for arranging a receiver device (20) includes equally spacing adjacent rake receivers (26-30) within an observation window (OW). A disclosed technique for updating an observation window includes changing the position of one of the rake fingers (24, 30) while maintaining a position of other ones of the rake fingers. The disclosed technique for arranging rake fingers in a receiver device (20) does not depend on searching and tracking channel conditions and reduces computational complexity without sacrificing receiver performance.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: January 5, 2010
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Rainer W. Bachl, Peter C. Gunreben, Mirko Schacht
  • Patent number: 7526304
    Abstract: In a UMTS wireless communication system, the enhanced dedicated physical control channel (E-DPCCH) that is usually always transmitted together with the enhanced dedicated physical data channel (E-DPDCH) on the uplink from a UE to a NodeB is instead only transmitted when a predetermined “start criterion” is met and is turned off when a predetermined “stop criterion” is met until a “start criterion” is later met again. The UE starts transmitting E-DPCCH whenever the corresponding E-DPDCH transport format combination is different from the previous one in the same HARQ process or some other “start criterion” is met. Multiple mechanisms can be used to decide when the UE should switch off E-DPCCH transmission after the transport format combination of E-DPDCH has changed.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: April 28, 2009
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Rainer Walter Bachl, Anil M Rao, Mirko Schacht, Henry Hui Ye
  • Patent number: 7496066
    Abstract: The present invention provides a method and an apparatus for managing mobility of a wireless communication device across a first and a second access node in a common administrational area of a network. The method comprises using the first access node to assign a temporary identification to the wireless communication device, causing the second access node to identify the first access node from which the temporary identification originates and hiding the mobility of the wireless communication device from the network when routing traffic to a serving access node of the first and second access nodes based on the identified first access node and the temporary identification. In one embodiment, use of software at these access nodes may enable deploying of a centralized logical functionality instead of centralized physical nodes.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: February 24, 2009
    Assignee: Lucent Technologies Inc.
    Inventors: Wilfried Speltacker, Mirko Schacht, Markus Georg Bauer
  • Patent number: 7443819
    Abstract: The present invention provides a method and an apparatus for managing relocation of one or more scrambling codes in a spread spectrum wireless communications system. The method comprises detecting an indication for a serving radio network subsystem relocation that causes a user equipment to leave a first radio network controller and selectively transiting, through an intermediate transition, at least one scrambling code of the one or more scrambling codes associated with an uplink from the first radio network controller to a second radio network controller for the user equipment in response to the indication. The first radio network controller may maintain three pools of scrambling codes, namely, a first pool of one or more relocated scrambling codes (SCs), a second pool of one or more free scrambling codes and a third pool for each of one or more used scrambling codes. By avoiding an early reuse, an uplink scrambling code may be assigned to a particular UE because a target radio network controller, i.e.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: October 28, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Thomas Hempel, Mirko Schacht, Sudeep Palat
  • Patent number: 7430420
    Abstract: The present invention provides a method and an apparatus for controlling a communications system that includes a mobile wireless device, a first and a second base station and a radio network controller. The communications system may allocate frequency bands to users on a multiplicity of channels associated with a multi-layer access network across at least two cells communicatively coupled to a first and a second base station, respectively. The method comprises monitoring a radio emission parameter associated with the first and second base stations that communicate with the mobile wireless device. A radio emission parameter associated with the first and second base stations, such as signal strength or quality, is monitored, to select a target cell among a set of candidate cells for the mobile wireless device and to transfer the mobile wireless device from a first frequency band to a second frequency band.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: September 30, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Fariborz Derakhshan, Enrico Jugl, Mirko Schacht
  • Publication number: 20070253363
    Abstract: A technique is disclosed for determining values of different portions of a total uplink interference, which can be used for scheduling and load control at a base station, for example. A disclosed example includes obtaining measurements from individual users and using those measurements to determine corresponding portions of a total uplink interference at the base station. One portion is associated with users that are controlled by a scheduler for that base station. Another portion is associated with users that are not controlled by that scheduler. Determining each of the portions individually and using a received total wideband power measurement allows for determining each of the major portions of the total uplink interference at a base station.
    Type: Application
    Filed: April 28, 2006
    Publication date: November 1, 2007
    Inventors: Rainer Bachl, Jens Mueckenheim, Mirko Schacht
  • Publication number: 20070253470
    Abstract: A technique for arranging a receiver device (20) includes equally spacing adjacent rake receivers (26-30) within an observation window (OW). A disclosed technique for updating an observation window includes changing the position of one of the rake fingers (24, 30) while maintaining a position of other ones of the rake fingers. The disclosed technique for arranging rake fingers in a receiver device (20) does not depend on searching and tracking channel conditions and reduces computational complexity without sacrificing receiver performance.
    Type: Application
    Filed: April 28, 2006
    Publication date: November 1, 2007
    Inventors: Rainer Bachl, Peter Gunreben, Mirko Schacht
  • Publication number: 20070178902
    Abstract: In one embodiment of managing the use of channelization codes during soft handoff of a mobile station from a transferring network station to a candidate network station, a determination is made as to whether a field associated with an existing channelization code used by the candidate network station is unused and meets timing criteria associated with a corresponding field received by the mobile station from the transferring network station. Based on this determination, a channelization code for use by the candidate network station in communicating with the mobile station is assigned.
    Type: Application
    Filed: January 27, 2006
    Publication date: August 2, 2007
    Inventors: Roland Guethaus, Philip Sapiano, Mirko Schacht
  • Publication number: 20070177555
    Abstract: A method of provisioning multicast services is provided. In an example, the method includes forming a plurality of multicast groups, each of the plurality of multicast groups associated with one of a plurality of first channel quality ranges. A request for a multicast service and an indicator (e.g., a channel quality indicator (CQI)) indicating a channel quality of a mobile unit are received from the mobile unit. The mobile unit is assigned to one of the plurality of multicast groups based on the indicated channel quality and the plurality of first channel quality ranges.
    Type: Application
    Filed: January 27, 2006
    Publication date: August 2, 2007
    Inventors: Stefan Brueck, Mirko Schacht, Hans Schefczik
  • Publication number: 20070133449
    Abstract: The present invention provides a method for associating multiple users with a shared downlink channel. One embodiment of the method may include associating an identifier with a plurality of mobile units and providing at least one multicast service to the plurality of mobile units over a shared channel using the identifier. Another embodiment of the method may include receiving at least one multicast service over a shared channel using an identifier associated with a plurality of mobile units.
    Type: Application
    Filed: December 12, 2005
    Publication date: June 14, 2007
    Inventors: Mirko Schacht, Peter Schefczik, Rainer Bachl
  • Publication number: 20070076707
    Abstract: The present invention provides a method of wireless communication. The method includes determining whether a packet includes a voice payload or control information based on at least one property of the packet.
    Type: Application
    Filed: September 30, 2005
    Publication date: April 5, 2007
    Inventors: Michael Link, Mirko Schacht, Sudeep Palat, Said Tatesh