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).

  • Patent number: 9264207
    Abstract: The invention relates to a control channel signal for use in a mobile communication system providing at least two different scheduling modes. Further the invention relates to a scheduling unit for generating the control channel signal and a base station comprising the scheduling unit. The invention also relates to the operation of a mobile station and a base station for implementing a scheduling mode using the control channel signal proposed by the invention. In order to facilitate the use of different scheduling schemes for user data transmission while avoiding an additional flag for indicating the scheduling mode in the control signaling, the invention proposes the use of code points in existing control channel signal fields. Further, the invention proposes a specific scheduling mode for use in combination with the proposed new control channel signal according to the invention.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: February 16, 2016
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventor: Christian Wengerter
  • Patent number: 9264193
    Abstract: The present invention relates to a method for receiving control information within a subframe of a multi-carrier communication system supporting carrier aggregation, the method comprising the following steps performed at a receiving node: performing a blind detection for the control information within a search space by means of a first search pattern, wherein the first search pattern is one of a plurality of search patterns, each of the plurality of search patterns comprising a plurality of candidates distributed on any of a plurality of aggregation levels, and wherein the plurality of search patterns further comprises a second search pattern whose candidates are non-overlapping the candidates of the first search pattern on the same aggregation levels.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: February 16, 2016
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Sujuan Feng, Alexander Golitschek Edler von Elbwart, Christian Wengerter, Michael Einhaus
  • Publication number: 20160044680
    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: October 22, 2015
    Publication date: February 11, 2016
    Inventors: Akihiko Nishio, Christian Wengerter, Hidetoshi Suzuki, Masaru Fukuoka
  • Publication number: 20160021624
    Abstract: The invention relates to methods for informing an eNodeB on the transmit power status of a user equipment in a mobile communication system using component carrier (CC) aggregation. Furthermore, the invention is also related to the implementation of these methods by hardware and their implementation in software. The invention proposes procedures that allow the eNodeB to recognize the power usage status of a UE in a communication system using carrier aggregation. The UE indicates to the eNodeB, when the UE is close to using its total maximum UE transmit power or when it has exceeded same. This is achieved by the UE including indicator(s) and/or new MAC CEs to one or more protocol data units transmitted on respective component carriers within a single sub-frame that is providing the eNodeB with power status information. The MAC CEs may report a per-UE power headroom. Alternatively, the MAC CEs may report per-CC power headrooms and/or power reductions applied to the respective uplink CCs.
    Type: Application
    Filed: September 25, 2015
    Publication date: January 21, 2016
    Inventors: Martin Feuersaenger, Joachim Loehr, Christian Wengerter
  • Publication number: 20160020883
    Abstract: The present invention relates to providing control information within a search space for blind decoding in a multi-carrier communication system. In particular, the control information is carried within a sub-frame of the communication system, the sub-frame including a plurality of control channel elements. The control channel elements may be aggregated into candidates for blind decoding. The number of control channel elements in a candidate is called aggregation level. In accordance with the present invention, the candidates of lower aggregation levels are localised, meaning that the control channel elements of one candidate are located adjacently to each other in the frequency domain. Some candidates of the higher aggregation level(s) are distributed in the frequency.
    Type: Application
    Filed: September 25, 2015
    Publication date: January 21, 2016
    Inventors: Alexander Golitschek Edler von Elbwart, Sujuan Feng, Christian Wengerter, Hidetoshi Suzuki
  • Publication number: 20150365210
    Abstract: Wireless communication wherein channel estimation accuracy is improved while keeping the position of each bit in a frame, even when a modulation system having a large modulation multiple value is used for a data symbol. An encoding operation encodes and outputs transmitting data (bit string) and a bit converting operation converts at least one bit of a plurality of bits constituting a data symbol to be used for channel estimation, among the encoded bit strings, into ‘1’ or ‘0’. A modulating operation modulates the bit string inputted from the bit converting operation by using a single modulation mapper and a plurality of data symbols are generated.
    Type: Application
    Filed: August 25, 2015
    Publication date: December 17, 2015
    Inventors: Kenichi MIYOSHI, Hidetoshi Suzuki, Katsuhiko Hiramatsu, Christian Wengerter, Alexander Golitschek Edler Von Elbwart
  • Patent number: 9204444
    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: Grant
    Filed: April 10, 2014
    Date of Patent: December 1, 2015
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Akihiko Nishio, Christian Wengerter, Hidetoshi Suzuki, Masaru Fukuoka
  • Publication number: 20150341919
    Abstract: The invention suggests a method for providing control signalling in a communication system, comprising the steps performed by a base station of the communication system of generating a control channel signal comprising a transport format and a channel quality indicator trigger signal for triggering a transmission of a channel quality indicator by at least one terminal to the base station, and transmitting the generated control channel signal to at least one terminal, wherein said transport format is a predetermined format for user data transmission by the at least one terminal to the base station and said control channel signal indicates a predetermined mode for reporting the channel quality indicator to the base station, wherein the channel quality indicator transmission is to be triggered by the at least one terminal based on the channel quality indicator trigger signal.
    Type: Application
    Filed: August 4, 2015
    Publication date: November 26, 2015
    Inventors: Alexander Golitschek Edler von Elbwart, Christian Wengerter, Joachim Löhr
  • Patent number: 9179424
    Abstract: The invention relates to methods for informing an eNodeB on the transmit power status of a user equipment in a mobile communication system using component carrier (CC) aggregation. Furthermore, the invention is also related to the implementation of these methods by hardware and their implementation in software. The invention proposes procedures that allow the eNodeB to recognize the power usage status of a UE in a communication system using carrier aggregation. The UE indicates to the eNodeB, when the UE is close to using its total maximum UE transmit power or when it has exceeded same. This is achieved by the UE including indicator(s) and/or new MAC CEs to one or more protocol data units transmitted on respective component carriers within a single sub-frame that is providing the eNodeB with power status information. The MAC CEs may report a per-UE power headroom. Alternatively, the MAC CEs may report per-CC power headrooms and/or power reductions applied to the respective uplink CCs.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: November 3, 2015
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Martin Feuersaenger, Joachim Loehr, Christian Wengerter
  • Publication number: 20150312935
    Abstract: A semi-persistent resource scheduling (SPS) allocation of a user equipment is deactivated in an LTE-based mobile communication system without requiring changes to the Physical layer-to-MAC layer interface and/or changes to PDCCH formats agreed by the 3GPP. A combination of NDI value and MCS index is defined that commands release of SPS resources. An alternative solution proposed defines a special transport block size that when signaled in a PDCCH commands release of SPS resources.
    Type: Application
    Filed: July 6, 2015
    Publication date: October 29, 2015
    Inventors: Joachim Lohr, Alexander Golitschek Edler Von Elbwart, Martin Feuersanger, Christian Wengerter
  • Patent number: 9173213
    Abstract: The present invention relates to providing control information within a search space for blind decoding in a multi-carrier communication system. In particular, the control information is carried within a sub-frame of the communication system, the sub-frame including a plurality of control channel elements. The control channel elements may be aggregated into candidates for blind decoding. The number of control channel elements in a candidate is called aggregation level. In accordance with the present invention, the candidates of lower aggregation levels are localized, meaning that the control channel elements of one candidate are located adjacently to each other in the frequency domain. Some candidates of the higher aggregation level(s) are distributed in the frequency.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: October 27, 2015
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Alexander Golitschek Edler von Elbwart, Sujuan Feng, Christian Wengerter, Hidetoshi Suzuki
  • Publication number: 20150305061
    Abstract: The invention relates to methods for transmitting a buffer status report (BSR) in a mobile communication system, more particularly to the definition of rules for triggering, generating and transmitting BSRs. The invention also relates to a data transmission method utilizing new rules to decide data of which radio bearers is transmitted within a given transmission time interval. Moreover, the invention relates to scheduling method for radio resources that is taking into account additional scheduling-relevant information from the buffer status reporting and/or data transmission method. To avoid unnecessary grants from the network and to suggest an advanced handling of data transmissions the invention suggests a buffer status reporting and data transmission schemes that take into account the scheduling mode of data of radio bearers pending for transmission to decide whether to report on it in a buffer status report, respectively, whether to multiplex the data to a transport block for transmission.
    Type: Application
    Filed: June 9, 2015
    Publication date: October 22, 2015
    Inventors: Martin Feuersaenger, Joachim Loehr, Christian Wengerter
  • Publication number: 20150296493
    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: June 24, 2015
    Publication date: October 15, 2015
    Inventors: Christian Wengerter, Joachim Loehr
  • Patent number: 9148267
    Abstract: Wireless communication wherein channel estimation accuracy is improved while keeping the position of each bit in a frame, even when a modulation system having a large modulation multiple value is used for a data symbol. An encoding operation encodes and outputs transmitting data (bit string) and a bit converting operation converts at least one bit of a plurality of bits constituting a data symbol to be used for channel estimation, among the encoded bit strings, into ‘1’ or ‘0’. A modulating operation modulates the bit string inputted from the bit converting operation by using a single modulation mapper and a plurality of data symbols are generated.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: September 29, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Kenichi Miyoshi, Hidetoshi Suzuki, Katsuhiko Hiramatsu, Christian Wengerter, Alexander Golitschek Edler Von Elbwart
  • Patent number: 9131484
    Abstract: The invention suggests a method for providing control signalling in a communication system, comprising the steps performed by a base station of the communication system of generating a control channel signal comprising a transport format and a channel quality indicator trigger signal for triggering a transmission of a channel quality indicator by at least one terminal to the base station, and transmitting the generated control channel signal to at least one terminal, wherein said transport format is a predetermined format for user data transmission by the at least one terminal to the base station and said control channel signal indicates a predetermined mode for reporting the channel quality indicator to the base station, wherein the channel quality indicator transmission is to be triggered by the at least one terminal based on the channel quality indicator trigger signal.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: September 8, 2015
    Assignee: Godo Kaisha IP Bridge 1
    Inventors: Alexander Golitschek Edler von Elbwart, Christian Wengerter, Joachim Löhr
  • Patent number: 9131490
    Abstract: The invention relates to a new structure of a control channel region within a sub-frame of a 3GPP-based based communication system using OFDM in the downlink. This new structure of a control channel region is inter alia particularly suitable for conveying physical downlink control channel information from a donor eNodeB to a relay node. The control channel region is divided in CCEs that have equal size irrespective of the presence of further cell-specific and/or UE-specific reference signals within the control channel region. This is achieved by dividing the control channel region in plural sub-CCEs that are combined to CCEs all having equal size (in terms of resource elements that can be used for the signaling of control information). The control channel region is divided in the frequency domain and/or time domain in a FDM respectively TDM fashion in order to obtain the sub-CCEs.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: September 8, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Sujuan Feng, Alexander Golitschek Edler von Elbwart, Christian Wengerter
  • Patent number: 9131501
    Abstract: The invention relates to a method for dynamically controlling the PUSCH of a SCell in a backhaul link of a communication system utilizing a relay node with carrier aggregation, where the SCell is inband with respect to the access link between the relay node and the UEs. In order to avoid subframe blocking due to inband operation, the PUSCH of an SCell may be deactivated. The new downlink-only configuration of the SCell allows the relay node to use all resources of the SCell for scheduling resources for uplink and downlink transmissions in the access link. The PUSCH may deactivated and activated e.g. depending on the need for higher data rates in the uplink and downlink of the access link between the relay node and the UEs. The decision to deactivate/activate the PUSCH of an SCell may be taken by the DeNB or the relay node.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: September 8, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Osvaldo Gonsa, Joachim Loehr, Sujuan Feng, Christian Wengerter
  • Publication number: 20150237644
    Abstract: The present invention relates to transmitting and receiving data in a multicarrier communication system in which the transmission and reception is performed on a transmission time interval basis. In particular, dynamic bundling of transmission time intervals is dynamically configurable for each scheduling assignment. The dynamic bundling may be applied in uplink and/or in downlink transmission between a terminal and a network node.
    Type: Application
    Filed: February 14, 2013
    Publication date: August 20, 2015
    Inventors: Alexander Golitschek Edler von Elbwart, Christian Wengerter, Hidetoshi Suzuki
  • Patent number: 9112686
    Abstract: The aim of the present invention is to provide an efficient and reliable transmission/reception mechanisms for a communication system with multiple component carriers, each of which further includes physical resources such as transmission slot/symbol, subcarrier/frequency subband, code, or radiation pattern. Accordingly, the control signal of a component carrier comprises a scheduling assignment specifying for said component carrier a resource for transmission of a data signal, and an allocation map specifying that a scheduling assignment has been sent for another component carrier. Signalizing the allocation map enables detection of possibly missed scheduling assignments.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: August 18, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Priya Hariharan, Christian Wengerter
  • Patent number: 9100981
    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: Grant
    Filed: December 26, 2013
    Date of Patent: August 4, 2015
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Christian Wengerter, Joachim Loehr