Patents by Inventor Alan Rottinghaus
Alan Rottinghaus 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).
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Patent number: 10966141Abstract: The exemplary embodiments of the invention provide at least a method and an apparatus to determine a beacon signal for a network node, where the network node is configured to connect with a cluster of access points in a wireless communication network, and where the beacon signal identifies the cluster; and send the beacon signal towards the wireless communication network. Further, the exemplary embodiments of the invention provide at least a method and an apparatus to determine a dominant access point of a cluster of access points based on signaling from at least one access point associated with the cluster of access points; and in response to the determining, direct communications towards the dominant access point of the cluster of access points.Type: GrantFiled: July 4, 2013Date of Patent: March 30, 2021Assignee: Nokia Solutions and Networks OyInventors: Mark Cudak, Amitabha Ghosh, Thomas Kovarik, Rapeepat Ratasuk, Alan Rottinghaus, Timothy Thomas, Frederick Vook
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Patent number: 10231254Abstract: An exemplary method includes determining, at a centralized processing apparatus of a wireless network, a first subset of downlink user plane data corresponding to one or more wireless user equipments at least by calculating input data required at each of one or more L1 PHY processing stages of a remote processing apparatus, wherein the first subset includes bits required by a remote processing apparatus to select a first symbol for transmission to the one or more user equipments at a first time slot; and streaming, via a fronthaul interface, the bits of the first subset followed by bits of one or more further subset of downlink user plane data, wherein the bits of the further subset of user plane data includes only the bits required to select by the remote processing apparatus a next symbol for transmission to the one or more of the wireless user equipments at a next time slot immediately following the first time slot.Type: GrantFiled: January 18, 2017Date of Patent: March 12, 2019Assignee: Nokia Technologies OyInventors: David Chen, Alan Rottinghaus, David Baietto, Yuda Luz
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Patent number: 10194441Abstract: Described are techniques for limiting bandwidth requirements for user equipment UE data sent on a front haul link between a remote radio head RRH and a baseband unit BBU. For a given UE a subset of a plurality of beams is selected based on received energies of the plurality of beams, and for the given UE only data from the selected subset of beams transmitting on a front haul link. Multiple techniques are detailed for how the subset is selected, including (when UE allocation information is available) averaged received beam energy, total received beam energy, maximum received beam energy and also (when UE allocation information is not available). For further bandwidth reduction a special data compression technique uses the received energies of each beam to select a minimum gain offset value after dividing the data into I and Q components.Type: GrantFiled: December 20, 2016Date of Patent: January 29, 2019Assignee: Nokia Solutions and Networks OyInventors: Xiaoyong Yu, Ke-Kang Chin, Alan Rottinghaus
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Patent number: 10080215Abstract: This specification describes a method comprising generating a first packet based on user plane data relating to a single user which is output by a first L1 PHY processing stage, the first packet including a proper subset of the user plane data which is to be transmitted to the user equipment during a first time-slot symbol; passing the first packet to a second L1 PHY processing stage across a split fronthaul interface in a first time period having a duration corresponding to a duration of transmission of the first time-slot symbol; and passing one or more subsequent packets including the remainder of the user plane data across the split fronthaul interface in one or more successive time periods which are immediately subsequent to the first time period.Type: GrantFiled: August 5, 2016Date of Patent: September 18, 2018Assignee: Nokia Technologies OyInventors: David Chen, Alan Rottinghaus, David Baietto, Yuda Luz
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Publication number: 20180176898Abstract: Described are techniques for limiting bandwidth requirements for user equipment UE data sent on a front haul link between a remote radio head RRH and a baseband unit BBU. For a given UE a subset of a plurality of beams is selected based on received energies of the plurality of beams, and for the given UE only data from the selected subset of beams transmitting on a front haul link. Multiple techniques are detailed for how the subset is selected, including (when UE allocation information is available) averaged received beam energy, total received beam energy, maximum received beam energy and also (when UE allocation information is not available). For further bandwidth reduction a special data compression technique uses the received energies of each beam to select a minimum gain offset value after dividing the data into I and Q components.Type: ApplicationFiled: December 20, 2016Publication date: June 21, 2018Inventors: Xiaoyong Yu, Ke-Kang Chin, Alan Rottinghaus
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Publication number: 20180042003Abstract: This specification describes a method comprising generating a first packet based on user plane data relating to a single user which is output by a first L1 PHY processing stage, the first packet including a proper subset of the user plane data which is to be transmitted to the user equipment during a first time-slot symbol; passing the first packet to a second L1 PHY processing stage across a split fronthaul interface in a first time period having a duration corresponding to a duration of transmission of the first time-slot symbol; and passing one or more subsequent packets including the remainder of the user plane data across the split fronthaul interface in one or more successive time periods which are immediately subsequent to the first time period.Type: ApplicationFiled: August 5, 2016Publication date: February 8, 2018Inventors: David Chen, Alan Rottinghaus, David Baietto, Yuda Luz
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Publication number: 20180042040Abstract: An exemplary method includes determining, at a centralized processing apparatus of a wireless network, a first subset of downlink user plane data corresponding to one or more wireless user equipments at least by calculating input data required at each of one or more L1 PHY processing stages of a remote processing apparatus, wherein the first subset includes bits required by a remote processing apparatus to select a first symbol for transmission to the one or more user equipments at a first time slot; and streaming, via a fronthaul interface, the bits of the first subset followed by bits of one or more further subset of downlink user plane data, wherein the bits of the further subset of user plane data includes only the bits required to select by the remote processing apparatus a next symbol for transmission to the one or more of the wireless user equipments at a next time slot immediately following the first time slot.Type: ApplicationFiled: January 18, 2017Publication date: February 8, 2018Inventors: David Chen, Alan Rottinghaus, David Baietto, Yuda Luz
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Publication number: 20150201368Abstract: The exemplary embodiments of the invention provide at least a method and an apparatus to determine a beacon signal for a network node, where the network node is configured to connect with a cluster of access points in a wireless communication network, and where the beacon signal identifies the cluster; and send the beacon signal towards the wireless communication network. Further, the exemplary embodiments of the invention provide at least a method and an apparatus to determine a dominant access point of a cluster of access points based on signaling from at least one access point associated with the cluster of access points; and in response to the determining, direct communications towards the dominant access point of the cluster of access points.Type: ApplicationFiled: July 4, 2013Publication date: July 16, 2015Inventors: Mark Cudak, Amitabha Ghosh, Thomas Kovarik, Rapeepat Ratasuk, Alan Rottinghaus, Timothy Thomas, Frederick Vook
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Patent number: 9042941Abstract: A method includes selecting a subset k of N accessible antennas to use to process a transmission received at the N antennas and sent by a user equipment, and processing the transmission from the user equipment at least by using baseband information from the k antennas. An apparatus includes one or more processors and one or more memories including computer program code. The one or more memories and the computer program code are configured to, with the one or more processors, cause the apparatus to perform at least the following: selecting a subset k of N accessible antennas to use to process a transmission received at the N antennas and sent by a user equipment; and processing the transmission from the user equipment at least by using baseband information from the k antennas. Additional apparatus, computer programs, and computer program products are disclosed.Type: GrantFiled: June 15, 2012Date of Patent: May 26, 2015Assignee: Nokia Solutions and Networks OyInventors: Phil Fleming, Shirish Nagaraj, Alan Rottinghaus, Roy Yang, Yuda Luz, David Baietto, Gerald Gutowski
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Patent number: 8934561Abstract: A method is disclosed that includes accessing baseband information for a number, N (N>1), of antennas accessible by a number of baseband units, where the baseband information correspond to a transmission by a user equipment and is received at the N antennas. The method includes determining values for one or more metrics for the baseband information for the N antennas. The method includes selecting, based on the determined values, a subset k of the N antennas and corresponding baseband information to use to determine output data for the transmission by the user equipment. The method includes determining the output data for the user equipment using the baseband information from the k antennas. Apparatus and computer program products are also disclosed.Type: GrantFiled: June 15, 2012Date of Patent: January 13, 2015Assignee: Nokia Siemens Networks OYInventors: Phil Fleming, Shirish Nagaraj, Alan Rottinghaus, Roy Yang, Yuda Luz, David Baietto
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Publication number: 20130170574Abstract: A method is disclosed that includes accessing baseband information for a number, N (N>1), of antennas accessible by a number of baseband units, where the baseband information correspond to a transmission by a user equipment and is received at the N antennas. The method includes determining values for one or more metrics for the baseband information for the N antennas. The method includes selecting, based on the determined values, a subset k of the N antennas and corresponding baseband information to use to determine output data for the transmission by the user equipment. The method includes determining the output data for the user equipment using the baseband information from the k antennas. Apparatus and computer program products are also disclosed.Type: ApplicationFiled: June 15, 2012Publication date: July 4, 2013Inventors: Phil FLEMING, Shirish Nagaraj, Alan Rottinghaus, Roy Yang, Yuda Luz, David Baietto
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Publication number: 20130172050Abstract: A method includes selecting a subset k of N accessible antennas to use to process a transmission received at the N antennas and sent by a user equipment, and processing the transmission from the user equipment at least by using baseband information from the k antennas. An apparatus includes one or more processors and one or more memories including computer program code. The one or more memories and the computer program code are configured to, with the one or more processors, cause the apparatus to perform at least the following: selecting a subset k of N accessible antennas to use to process a transmission received at the N antennas and sent by a user equipment; and processing the transmission from the user equipment at least by using baseband information from the k antennas. Additional apparatus, computer programs, and computer program products are disclosed.Type: ApplicationFiled: June 15, 2012Publication date: July 4, 2013Inventors: Phil Fleming, Shirish Nagaraj, Alan Rottinghaus, Roy Yang, Yuda Luz, David Baietto, Gerald Gutowski
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Publication number: 20070223602Abstract: Arrangements relating to an Orthogonal Frequency Division Multiplexing (OFDM) receiver (200) can include performing at least one Low-Density Parity Check (LDPC) decoding attempt on a received signal (725) and evaluating at least one parity check for each LDPC decoding attempt (735). Failed LDPC decoding attempts can be counted according to the evaluated parity checks (740). The signal can be selectively processed through at least one joint demodulation-decoding loop according to the counting of failed LDPC decoding attempts (745).Type: ApplicationFiled: March 23, 2006Publication date: September 27, 2007Inventors: Xiaoyong Yu, Michael Kloos, Alan Rottinghaus