Patents by Inventor Christian Wengerter

Christian Wengerter 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).

  • Publication number: 20100095183
    Abstract: A method of HARQ process configuration in a mobile communication system, wherein a plurality of HARQ processes are transmitted from a transmitter to a receiver including the step of configuring a plurality of HARQ processes of unrestricted use for data flows having different priorities and the step of pre-configuring at least one reserved HARQ process for specific data flows of high priority. According to another embodiment, instead of a reserved HARQ process, an additional HARQ process is pre-configured.
    Type: Application
    Filed: December 6, 2009
    Publication date: April 15, 2010
    Applicant: PANASONIC CORPORATION
    Inventors: Dragan PETROVIC, Eiko Seidel, Christian Wengerter
  • Patent number: 7697565
    Abstract: A transmission apparatus for transmitting data has a table that includes a plurality of constellation versions for a 64 QAM modulation scheme. Each of the constellation versions defines at least one of (i) bit positions in a bit sequence and (ii) logical values of bits of the bit sequence. A transmission section transmits data using one of the constellation versions based on the table.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: April 13, 2010
    Assignee: Panasonic Corporation
    Inventors: Alexander Golitschek, Christian Wengerter, Michael Philipp Schmitt, Eiko Seidel
  • Patent number: 7693179
    Abstract: A hybrid ARQ retransmission method involves encoding data packets with a forward error correction (FEC) technique prior to transmission. The data packets are re-transmitted based on an automatic repeat request (ARQ) and subsequently soft-combined with previously received erroneous data packets either on a symbol-by-symbol or a bit-by-bit basis. The symbols of the erroneous data packets are modulated by employing a first signal constellation. The symbols of the re-transmitted data packets are modulated by employing at least a second signal constellation. Each symbol bit has a mean bit reliability defined by the individual bit reliabilities over all symbols of the predetermined signal constellation. The first constellation and the at least second signal constellation are selected such that the combined mean bit reliabilities for the respective bits of all transmissions are averaged out.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: April 6, 2010
    Assignee: Panasonic Corporation
    Inventors: Alexander Golitschek, Christian Wengerter, Michael Philipp Schmitt, Eiko Seidel
  • Patent number: 7688900
    Abstract: A data transmitting device for transmitting data on a channel within a CDMA system may simultaneously convey data with a plurality of other data transmitting devices on one channel. The data transmitting device includes an interleaver that receives an interleaver pattern parameter, generates a respective interleaver pattern in accordance with the received parameter, and interleaves a source data stream using the generated interleaver pattern to produce an interleaved data stream. The generated interleaver pattern has interleaver characteristics that differ from the interleaver characteristics of at least one other data transmitting device that simultaneously transmits data on the channel.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: March 30, 2010
    Assignee: Panasonic Corporation
    Inventors: Christian Wengerter, Alexander Golitschek Edler Von Elbwart, Eiko Seidel
  • Publication number: 20100061345
    Abstract: The invention relates to a method, apparatus and system for configuring control channels in a mobile communication network and a mobile station. In order to suggest another improved scheme for configuring control channels, in particular control channels related to the transmission of user data the invention suggests aligning the size of the control channel information of different formats to an equal number of coded control channel information bits and/or modulation symbols for each control channel. The control channels may comprise scheduling related control information. According to another aspect of the invention, a more flexible solution is proposed that may allow for taking different geometries of mobile stations within a cell into account.
    Type: Application
    Filed: December 10, 2007
    Publication date: March 11, 2010
    Applicant: PANASONIC Corporation
    Inventors: Christian Wengerter, Hidetoshi Suzuki, Akihiko Nishio
  • Publication number: 20100046459
    Abstract: Provided is a radio communication base station device which can prevent lowering of use efficiency of a channel communication resource for performing a frequency diversity transmission when simultaneously performing a frequency scheduling transmission and the frequency diversity transmission in a multicarrier communication. In the device, a modulation unit (12) executes a modulation process on Dch data after encoded so as to generate a Dch data symbol. A modulation unit (22) executes a modulation process on the encoded Lch data so as to generate an Lch data symbol. An allocation unit (103) allocates the Dch data symbol and the Lch data symbol to respective subcarriers constituting an OFDM symbol and outputs them to a multiplexing unit (104). Here, when a plurality of Dch are used for a Dch data symbol of one mobile station, the allocation unit (103) uses Dch of continuous channel numbers.
    Type: Application
    Filed: June 18, 2008
    Publication date: February 25, 2010
    Applicant: PANASONIC CORPORATION
    Inventors: Akihiko Nishio, Christian Wengerter, Hidetoshi Suzuki, Masaru Fukuoka
  • Publication number: 20100040003
    Abstract: Provided is a radio communication base station device which can reduce the number of judgment times for a control signal in a mobile station, thereby suppressing power consumption by the mobile station. The radio communication base station device (100) includes: a mapping setting unit (122) which sets a mapping method in a mapping unit (102); the mapping unit (102) which maps a control signal to respective mobile stations to any of subcarriers constituting the OFDM symbol according to the mapping method set by the mapping setting unit (122); an MCS setting unit (121) which references a mapping table in which correlation between a plurality of MCS having different MCS levels and mapping methods is set according to the judgment result of the mapping setting unit (122) and sets MCS in encoding/modulation units (101-1 to 101-n).
    Type: Application
    Filed: September 1, 2008
    Publication date: February 18, 2010
    Applicant: PANASONIC CORPORATION
    Inventors: Akihiko Nishio, Hidetoshi Suzuki, Christian Wengerter
  • Publication number: 20100023830
    Abstract: The invention relates to a method and apparatus for providing an improved scheme for encoding control information for transmitting user data. Further the method and apparatus may allow for reducing the control signaling overhead. These advantages may be achieved by interpreting information on at least one link adaptation parameter for transmitting the user data to determine the at least one link adaptation parameter for transmitting the user data, wherein the at least one link adaptation parameter for transmitting the user data is comprised in control signaling. According to the invention the interpretation of the information depends on at least one link adaptation parameter employed for transmitting the control signaling.
    Type: Application
    Filed: August 31, 2007
    Publication date: January 28, 2010
    Applicant: Panasonic Corporation
    Inventors: Christian Wengerter, Akihiko Nishio, Hidetoshi Suzuki
  • Patent number: 7631247
    Abstract: A method of HARQ process configuration in a mobile communication system, wherein a plurality of HARQ processes are transmitted from a transmitter to a receiver comprising the step of configuring a plurality of HARQ processes of unrestricted use for data flows having different priorities and the step of pre-configuring at least one reserved HARQ process for specific data flows of high priority. According to another embodiment, instead of a reserved HARQ process, an additional HARQ process is pre-configured.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: December 8, 2009
    Assignee: Panasonic Corporation
    Inventors: Dragan Petrovic, Elko Seidel, Christian Wengerter
  • Publication number: 20090280823
    Abstract: The invention relates to an improved paging procedure for mobile nodes in a mobile communication system. A UE in idle mode is paged by a network entity via a selectable frequency subband of the system bandwidth. For every resource block, comprising part of the paging message or a diversity repetition thereof, a respective frequency subband is selected based on various parameters. These parameters may include: load in the subbands, UE capability in the tracking area and/or importance of paging information within the resource block. Furthermore, additional parity bits may be transmitted instead of the diversity repetition of the paging message, wherein the resource blocks, comprising the additional parity bits, are also transmitted via selectable frequency subbands. Thereby, the delay for changing from the idle to the active state of a mobile node may be reduced by increasing reliability of paging message transmission and resources may be utilized more efficiently.
    Type: Application
    Filed: June 28, 2007
    Publication date: November 12, 2009
    Inventors: Dragan Petrovic, Christian Wengerter
  • Publication number: 20090262699
    Abstract: The invention relates to a method and scheduling apparatus for reserving radio resources in radio resource block units in a mobile communication system for a plurality of users. Further, another aspect of the invention is the indication of a radio resource reservation in radio resource block units in a mobile communication system to one of a plurality of mobile terminals. To provide a new mechanism allowing an efficient utilization of radio resources the invention proposes a resource reservation mechanism that reserves radio resources for a plurality of users in resource block units. Thereby, individual resource blocks are reserved for the individual users for a reservation period that comprises a plurality of time slots (or sub-frames). Further, the resource block reservations for the users overlap at least partially among the users, i.e. individual ones of the resource blocks are reserved for plural users.
    Type: Application
    Filed: February 7, 2007
    Publication date: October 22, 2009
    Applicant: PANASONIC CORPORATION
    Inventors: Christian Wengerter, Joachim Lohr, Alexander Golitschek Edler Von Elbwart
  • Publication number: 20090262858
    Abstract: An ARQ (re-) transmission method of transmitting data in a wireless communication system wherein data packets are transmitted from a transmitter to a receiver, using a first transmission and a second transmission based on a repeat request. The method comprises the steps of modulating data at the transmitter using a first signal constellation pattern to obtain a first data symbol. The first data symbol is transmitted as the first transmission to the receiver using a first diversity branch. Further, the data is modulated at the transmitter using a second signal constellation pattern to obtain a second data symbol. Then, the second data symbol is transmitted as the second transmission to the receive over a second diversity branch. Finally, the received first and second data symbol data symbol are diversity combined at the receiver. The invention further relates to a transmitter and a receiver embodied to carry out the method of the invention.
    Type: Application
    Filed: June 23, 2009
    Publication date: October 22, 2009
    Applicant: PANASONIC CORPORATION
    Inventors: Christian WENGERTER, Alexander Golitschek Edler von Elbwart, Eiko Seidel
  • Publication number: 20090245407
    Abstract: A method of transmitting data in a wireless communication system from a transmitter to a receiver, comprising the steps of modulating data at the transmitter using a first signal constellation pattern to obtain a first data symbol. The first data symbol is transmitted to the receiver using a first diversity branch. Further, the data is modulated at the transmitter using a second signal constellation pattern to obtain a second data symbol. Then, the second data symbol is transmitted to the receiver over a second diversity path. Finally, the received first and second data symbol are diversity combined at the receiver. The invention further relates to a transmitter and a receiver embodied to carry out the method of the invention.
    Type: Application
    Filed: June 12, 2009
    Publication date: October 1, 2009
    Applicant: PANASONIC CORPORATION
    Inventors: Christian WENGERTER, Alexander GOLITSCHEK EDLER VON ELBWART, Eiko SEIDEL
  • Publication number: 20090219912
    Abstract: A method is described for scheduling a plurality of data flows to a plurality of shared channels in a wireless communication system transmitting data packets in time intervals of frames and applying adaptive modulation and coding. The method comprises the steps of determining virtual link adaptation parameters for at least a part of all combinations of data flow and shared channel, based on state information from the respective shared channel, and based on Quality of Service requirements for the respective data flow; calculating potential data rates for said combinations of data flow and shared channel, based on said virtual link adaptation parameters; calculating priority values for said combinations of data flow and shared channel, based on said potential data rates; and selecting, based on the calculated priority values, for at least a part of the shared channels, a data flow for which data is to be transmitted on each of these shared channel during the time interval of one frame.
    Type: Application
    Filed: June 20, 2006
    Publication date: September 3, 2009
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Christian Wengerter, Jan Ohlhorst
  • Publication number: 20090221297
    Abstract: The present invention relates to a method for balancing the distribution of interference between radio cells in a wireless communication system comprising cells in which subcarrier blocks are used for communication. A number of adjacent cells build a cell cluster. Moreover, the present invention relates to a corresponding method adapted for use in a system in which multi beam antennas or multiple antennas are used. Furthermore, the present invention relates to base stations performing the above method as well as a communication system comprising the base stations. To reduce the large average SIR variations without causing additional SIR estimation, measurement and calculation problem as introduced with power control the invention suggests to group subcarrier blocks into a plurality of subcarrier block sets in each cell of a cell cluster, to determine transmission power levels for each of the cells of said cell cluster, and to assign transmission power levels to the subcarrier block sets.
    Type: Application
    Filed: November 5, 2004
    Publication date: September 3, 2009
    Inventors: Christian Wengerter, Alexander Golitschek Edler Von Elbwart
  • Publication number: 20090219870
    Abstract: A method of transmitting data packets over a plurality of dynamically allocated resource blocks in at least one or a combination of a time, code or frequency domain on a shared channel of a wireless communication system, comprising the steps of selecting a number of resource block candidates for potential transmission of data packets destined for a receiver and transmitting the data packet to the receiver using at least one allocated resource block from the selected resource block candidates. The invention also relates to a corresponding method of decoding data packets, a transmitter, receiver and communication system.
    Type: Application
    Filed: January 25, 2007
    Publication date: September 3, 2009
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Christian Wengerter, Joachim Löhr
  • Patent number: 7567622
    Abstract: An ARQ (re-) transmission method of transmitting data in a wireless communication system wherein data packets are transmitted from a transmitter to a receiver, using a first transmission and a second transmission based on a repeat request. The method comprises the steps of modulating data at the transmitter using a first signal constellation pattern to obtain a first data symbol. The first data symbol is transmitted as the first transmission to the receiver using a first diversity branch. Further, the data is modulated at the transmitter using a second signal constellation pattern to obtain a second data symbol. Then, the second data symbol is transmitted as the second transmission to the receive over a second diversity branch. Finally, the received first and second data symbol data symbol are diversity combined at the receiver. The invention further relates to a transmitter and a receiver embodied to carry out the method of the invention.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: July 28, 2009
    Assignee: Panasonic Corporation
    Inventors: Christian Wengerter, Alexander Golitschek Edler Von Elbwart, Eiko Seidel
  • Patent number: 7558331
    Abstract: A method of transmitting data in a wireless communication system from a transmitter to a receiver, comprising the steps of modulating data at the transmitter using a first signal constellation pattern to obtain a first data symbol. The first data symbol is transmitteds to the receiver using a first diversity branch. Further, the data is modulated at the transmitter using a second signal constellation pattern to obtain a second data symbol. Then, the second data symbol is transmitted to the receiver over a second diversity path. Finally, the received first and second data symbol are diversity combined at the receiver. The invention further relates to a transmitter and a receiver embodies to carry out the method of invention.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: July 7, 2009
    Assignee: Panasonic Corporation
    Inventors: Christian Wengerter, Alexander Golitschek Edler Von Elbwart, Eiko Seidel
  • Patent number: 7552375
    Abstract: A method of encoding data in a code block comprising an information bit sequence in a communication device of a communication system comprising the step of separating the information bit sequence into a plurality of subsets of information bits. Each subset forming a code block segment. Further, the method comprises the step of encoding the code block segments individually using at least one encoding method. The invention also relates to a correspondingly adapted encoder and communication device to carry out the encoding method.
    Type: Grant
    Filed: April 26, 2004
    Date of Patent: June 23, 2009
    Assignee: Panasonic Corporation
    Inventors: Alexander Golitschek Edler Von Elbwart, Christian Wengerter, Elko Seidel
  • Publication number: 20090122765
    Abstract: The method according to the present invention provides synchronization in a heterogeneous mobile network, for the purpose of interoperability, of a wireless local area network, in which a medium is reserved for a certain service or user in radio channel reservation periods (702) of variable duration, to a radio access network, transmitting data in transmission time intervals of pre-defined duration (603). The variable duration of a radio channel reservation period (702) is defined such that it ends by a pre-defined time period (609) before the end of a transmission time interval (603). The method may be implemented in an access point (1400) of a heterogeneous network as well as in a mobile station (1500).
    Type: Application
    Filed: January 20, 2006
    Publication date: May 14, 2009
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Konstantinos Dimou, Eiko Seidel, Dragan Petrovic, Christian Wengerter