Patents by Inventor Walter Gerhard Alois Muller
Walter Gerhard Alois Muller 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: 10721638Abstract: The present invention relates to a method and apparatus for testing mobile terminals in an OFDMA system, in which all or part of available downlink radio resources in a cell are transmitted. A processing unit in a test apparatus splits a set of contiguous resource blocks into separate contiguous portions. A first contiguous portion of the set of resource blocks is allocated to users of a first type, and a second contiguous portion of the set of resource blocks is allocated to users of a second type. A transmitter in the test apparatus transmits test signals to the users of the first type and the second type using the at least one contiguous set of resource blocks.Type: GrantFiled: January 18, 2019Date of Patent: July 21, 2020Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Muhammad Ali Kazmi, Joakim Axmon, Christian Bergljung, Farshid Ghasemzadeh, Walter Gerhard Alois Müller
-
Publication number: 20190159047Abstract: The present invention relates to a method and apparatus for testing mobile terminals in an OFDMA system, in which all or part of available downlink radio resources in a cell are transmitted. A processing unit in a test apparatus splits a set of contiguous resource blocks into separate contiguous portions. A first contiguous portion of the set of resource blocks is allocated to users of a first type, and a second contiguous portion of the set of resource blocks is allocated to users of a second type. A transmitter in the test apparatus transmits test signals to the users of the first type and the second type using the at least one contiguous set of resource blocks.Type: ApplicationFiled: January 18, 2019Publication date: May 23, 2019Inventors: Muhammad Ali Kazmi, Joakim Axmon, Christian Bergljung, Farshid Ghasemzadeh, Walter Gerhard Alois Müller
-
Patent number: 10219172Abstract: The present invention relates to a method and apparatus for testing mobile terminals in an OFDMA system, in which all or part of available downlink radio resources in a cell are transmitted. A processing unit in a test apparatus splits a set of contiguous resource blocks into separate contiguous portions. A first contiguous portion of the set of resource blocks is allocated to users of a first type, and a second contiguous portion of the set of resource blocks is allocated to users of a second type. A transmitter in the test apparatus transmits test signals to the users of the first type and the second type using the at least one contiguous set of resource blocks.Type: GrantFiled: February 24, 2016Date of Patent: February 26, 2019Assignee: Telefonaktieboloaget LM Ericsson (publ)Inventors: Muhammad Kazmi, Joakim Axmon, Christian Bergljung, Farshid Ghasemzadeh, Walter Gerhard Alois Müller
-
Patent number: 9445339Abstract: The invention relates to a method for supporting cell change between frequency layers. The method is performed in a Radio Network node of a wireless communication network deploying two frequency layers. The Radio Network node serves a User Equipment in a cell of a first of the two frequency layers. The User Equipment is configured to perform measurements on the first frequency layer, and to exclude measurements on a second of the two frequency layers. The method comprises receiving information from the User Equipment related to a coverage of a target cell of the second frequency layer, and determining whether to change to the target cell based on the received information.Type: GrantFiled: October 10, 2014Date of Patent: September 13, 2016Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Joakim Axmon, Muhammad Ali Kazmi, Walter Gerhard Alois Müller
-
Publication number: 20160174086Abstract: The present invention relates to a method and apparatus for testing mobile terminals in an OFDMA system, in which all or part of available downlink radio resources in a cell are transmitted. A processing unit in a test apparatus splits a set of contiguous resource blocks into separate contiguous portions. A first contiguous portion of the set of resource blocks is allocated to users of a first type, and a second contiguous portion of the set of resource blocks is allocated to users of a second type. A transmitter in the test apparatus transmits test signals to the users of the first type and the second type using the at least one contiguous set of resource blocks.Type: ApplicationFiled: February 24, 2016Publication date: June 16, 2016Inventors: Muhammad Kazmi, Joakim Axmon, Christian Bergljung, Farshid Ghasemzadeh, Walter Gerhard Alois Müller
-
Patent number: 9307426Abstract: The present invention relates to a method and apparatus for testing mobile terminals in an OFDMA system, in which all or part of available downlink radio resources in a cell are transmitted. A processing unit in a test apparatus splits a set of contiguous resource blocks into separate contiguous portions. A first contiguous portion of the set of resource blocks is allocated to users of a first type, and a second contiguous portion of the set of resource blocks is allocated to users of a second type. A transmitter in the test apparatus transmits test signals to the users of the first type and the second type using the at least one contiguous set of resource blocks.Type: GrantFiled: November 5, 2012Date of Patent: April 5, 2016Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Muhammad Ali Kazmi, Farshid Ghasemzadeh, Joakim Axmon, Walter Gerhard Alois Müller, Christian Bergljung
-
Publication number: 20160073277Abstract: The present invention relates to a method and apparatus for testing mobile terminals in an OFDMA system, in which all or part of available downlink radio resources in a cell are transmitted. A processing unit in a test apparatus splits a set of contiguous resource blocks into separate contiguous portions. A first contiguous portion of the set of resource blocks is allocated to users of a first type, and a second contiguous portion of the set of resource blocks is allocated to users of a second type. A transmitter in the test apparatus transmits test signals to the users of the first type and the second type using the at least one contiguous set of resource blocks.Type: ApplicationFiled: November 5, 2012Publication date: March 10, 2016Inventors: Muhammad Ali Kazmi, Farshid Ghasemzadeh, Joakim Axmon, Walter Gerhard Alois Müller, Christian Bergljung
-
Patent number: 9191851Abstract: A telecommunications node (28) comprises a communication interface (36) and a parameter controller (40). The node (28) acquires timing advance (TA) information and angle of arrival (AoA) information through the communication interface (36). The timing advance (TA) information and angle of arrival (AoA) information are based on uplink signals received over a radio interface (32) from one or more wireless terminals (30) that are involved or have been involved in handover. The parameter controller (40) uses the timing advance (TA) information and the angle of arrival (AoA) information to make a determination of size and shape of a cell of a radio access network.Type: GrantFiled: September 28, 2012Date of Patent: November 17, 2015Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Oumer Teyeb, Angelo Centonza, Muhammad Ali Kazmi, Gunnar Mildh, Walter Gerhard Alois Müller
-
Publication number: 20150024754Abstract: The invention relates to a method for supporting cell change between frequency layers. The method is performed in a Radio Network node of a wireless communication network deploying two frequency layers. The Radio Network node serves a User Equipment in a cell of a first of the two frequency layers. The User Equipment is configured to perform measurements on the first frequency layer, and to exclude measurements on a second of the two frequency layers. The method comprises receiving information from the User Equipment related to a coverage of a target cell of the second frequency layer, and determining whether to change to the target cell based on the received information.Type: ApplicationFiled: October 10, 2014Publication date: January 22, 2015Inventors: Joakim Axmon, Muhammad Ali Kazmi, Walter Gerhard Alois Müller
-
Patent number: 8892103Abstract: The invention relates to a method for supporting cell change between frequency layers. The method is performed in a UE and/or a RN node of a wireless communication network deploying two frequency layers. The RN node serves a UE in a cell of a first of the two frequency layers. The UE is configured to perform measurements on the first frequency layer, and to exclude measurements on a second of the two frequency layers. The method comprises receiving (610) measurement results from the UE, for measurements performed on a cell of the first frequency layer, determining (620) a location of the UE based on the measurement results, assessing (630) a coverage of a target cell of the second frequency layer based on the location and a coverage map for the two frequency layers, and determining (640) whether to change to the target cell based on the assessment.Type: GrantFiled: May 4, 2012Date of Patent: November 18, 2014Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Joakim Axmon, Muhammad Ali Kazmi, Walter Gerhard Alois Müller
-
Publication number: 20140126380Abstract: The present invention relates to a method and apparatus for testing mobile terminals in an OFDMA system, in which all or part of available downlink radio resources in a cell are transmitted. A processing unit in a test apparatus splits a set of contiguous resource blocks into separate contiguous portions. A first contiguous portion of the set of resource blocks is allocated to users of a first type, and a second contiguous portion of the set of resource blocks is allocated to users of a second type. A transmitter in the test apparatus transmits test signals to the users of the first type and the second type using the at least one contiguous set of resource blocks.Type: ApplicationFiled: November 5, 2012Publication date: May 8, 2014Inventors: Muhammad Ali Kazmi, Farshid Ghasemzadeh, Joakim Axmon, Walter Gerhard Alois Müller, Christian Bergljung
-
Publication number: 20140064247Abstract: A telecommunications node (28) comprises a communication interface (36) and a parameter controller (40). The node (28) acquires timing advance (TA) information and angle of arrival (AoA) information through the communication interface (36). The timing advance (TA) information and angle of arrival (AoA) information are based on uplink signals received over a radio interface (32) from one or more wireless terminals (30) that are involved or have been involved in handover. The parameter controller (40) uses the timing advance (TA) information and the angle of arrival (AoA) information to make a determination of size and shape of a cell of a radio access network.Type: ApplicationFiled: September 28, 2012Publication date: March 6, 2014Inventors: Oumer Teyeb, Angelo Centonza, Muhammad Ali Kazmi, Gunnar Mildh, Walter Gerhard Alois Müller
-
Patent number: 8526357Abstract: The present invention relates to methods and arrangements for handling unreliable scheduling grants in a WCDMA-communication system. A user equipment detects that a received scheduling grant is unreliable and adjust its serving grant based on that information. The user equipment is also able to report continuously received unreliable grants as an event to the network, allowing the network to adapt its operation to reduce the unreliable grants.Type: GrantFiled: May 18, 2005Date of Patent: September 3, 2013Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Muhammad Ali Kazmi, Walter Gerhard Alois Muller, Rutger Gustav Gillbert Andersson, Dirk Gerstenberger, Karl Olof Joakim Bergstrom, Stefan Parkvall
-
Publication number: 20130150054Abstract: The invention relates to a method for supporting cell change between frequency layers. The method is performed in a UE and/or a RN node of a wireless communication network deploying two frequency layers. The RN node serves a UE in a cell of a first of the two frequency layers. The UE is configured to perform measurements on the first frequency layer, and to exclude measurements on a second of the two frequency layers. The method comprises receiving (610) measurement results from the UE, for measurements performed on a cell of the first frequency layer, determining (620) a location of the UE based on the measurement results, assessing (630) a coverage of a target cell of the second frequency layer based on the location and a coverage map for the two frequency layers, and determining (640) whether to change to the target cell based on the assessment.Type: ApplicationFiled: May 4, 2012Publication date: June 13, 2013Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Joakim Axmon, Muhammad Ali Kazmi, Walter Gerhard Alois Muller
-
Publication number: 20130070663Abstract: The present invention relates to a method in a serving base station (130) for controlling handover of a relay node (140) to a target cell (150A) controlled by a target base station (150). The method comprises the steps of obtaining information (91) indicating if the target base station and/or the target cell supports handling of relay nodes or not; avoiding handover of said relay node to said target cell in case the target base station and/or the target cell does not support handling of relay nodes (94). The invention furthermore relates to a base station for performing said method.Type: ApplicationFiled: May 3, 2012Publication date: March 21, 2013Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Fredrik Gunnarsson, Stefan Engström, Gunnar Mildh, Walter Gerhard Alois Müller, Stefan Henrik Andreas Wager
-
Publication number: 20010036827Abstract: In a telecommunications network wherein a location area contains GSM cells having adjacent or neighboring UTMS cells, a dedicated procedure is employed to download information about a UTMS cell to a mobile station. After entering the location area, the mobile is notified of the presence of the UTMS cell. In response to the notice, the mobile is operated to acquire specified information about the UTMS cell from the network, such as frequency and scrambling code combinations, radio access bearer configuration, and information pertaining to intersystem cell selection.Type: ApplicationFiled: March 21, 2001Publication date: November 1, 2001Applicant: Telefonaktiebolaget L M Ericsson (pub1)Inventors: Peter Hans Edlund, Mattias Hagberg, Walter Gerhard Alois Muller, Yngve Bengt Persson