Patents by Inventor Alan Barbieri

Alan Barbieri 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: 9998310
    Abstract: A distributed radio frequency communication system facilitates communication between a wireless terminal and a core network. The system includes a remote radio unit (RRU) coupled to at least one antenna to communicate with the wireless terminal. The RRU includes electronic circuitry to perform at least a first portion of a first-level protocol of a radio access network (RAN) for communicating between the wireless terminal and the core network. The system also includes a baseband unit (BBU) coupled to the core network, and configured to perform at least a second-level protocol of the RAN. A fronthaul link is coupled to the BBU and the RRU. The fronthaul link utilizes an adaptive fronthaul protocol for communication between the BBU and the RRU. The adaptive fronthaul protocol has provisions for adapting to conditions of the fronthaul link and radio network by changing the way data is communicated over the fronthaul link.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: June 12, 2018
    Inventors: Alan Barbieri, Dario Fertonani
  • Publication number: 20180145738
    Abstract: A method for providing multi-hypothesis channel quality indicator (MH-CQI) feedback is described. Hypotheses corresponding to rank indicator (RI) and precoding matrix indicator (PMI) assumptions associated with a dominant interferer are selected. Multi-hypothesis channel quality indicator (MH-CQI) values based on the selected hypotheses are generated. The multi-hypothesis channel quality indicator (MH-CQI) values are encoded. The multi-hypothesis channel quality indicator (MH-CQI) values are sent as feedback.
    Type: Application
    Filed: January 17, 2018
    Publication date: May 24, 2018
    Inventors: Stefan Geirhofer, Peter Gaal, Tingfang Ji, Alan Barbieri
  • Patent number: 9949248
    Abstract: Methods and apparatus are disclosed for improving blind-decoding and interference suppression associated with interference from non-serving cells in a wireless network, specifically, performing interference suppression on the non-serving cell control channel. Various aspect employ network-assisted blind-decoding of non-serving cell signals at UEs through the coordination, communication, and use of communication restriction conditions. Network aspects may restrict certain communications between eNBs and served UEs, and communicate the restrictions to non-served UE. The non-served UEs can then leverage the restrictions for more efficient blind-decoding of interfering eNB signals and interference cancellation of interfering eNB signals.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: April 17, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Alan Barbieri, Tao Luo
  • Patent number: 9924504
    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus configures a first downlink (DL) control channel for a user equipment (UE) being served by the first transmission point, the configuration facilitating decoding of the first DL control channel by at least one UE being served by a second transmission point, and transmits the first DL control channel.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: March 20, 2018
    Inventors: Alan Barbieri, Tao Luo
  • Patent number: 9917629
    Abstract: A method for providing multi-hypothesis channel quality indicator (MH-CQI) feedback is described. Hypotheses corresponding to rank indicator (RI) and precoding matrix indicator (PMI) assumptions associated with a dominant interferer are selected. Multi-hypothesis channel quality indicator (MH-CQI) values based on the selected hypotheses are generated. The multi-hypothesis channel quality indicator (MH-CQI) values are encoded. The multi-hypothesis channel quality indicator (MH-CQI) values are sent as feedback.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: March 13, 2018
    Assignee: QUALCOMM Incoroporated
    Inventors: Stefan Geirhofer, Peter Gaal, Tingfang Ji, Alan Barbieri
  • Publication number: 20180034669
    Abstract: A distributed radio frequency communication system facilitates communication between a wireless terminal and a core network. The system includes a remote radio unit (RRU) coupled to at least one antenna to communicate with the wireless terminal. The RRU includes electronic circuitry to perform at least a first portion of a first-level protocol of a radio access network (RAN) for communicating between the wireless terminal and the core network. The system also includes a baseband unit (BBU) coupled to the core network, and configured to perform at least a second-level protocol of the RAN. A fronthaul link is coupled to the BBU and the RRU. The fronthaul link utilizes an adaptive fronthaul protocol for communication between the BBU and the RRU. The adaptive fronthaul protocol has provisions for adapting to conditions of the fronthaul link and radio network by changing the way data is communicated over the fronthaul link.
    Type: Application
    Filed: March 11, 2016
    Publication date: February 1, 2018
    Inventors: Alan Barbieri, Dario Fertonani
  • Publication number: 20180013581
    Abstract: A distributed radio frequency communication system facilitates communication between a wireless terminal and a core network. The system includes a remote radio unit (RRU) coupled to at least one antenna to communicate with the wireless terminal. The RRU includes electronic circuitry to perform at least a first portion of a first-level protocol of a radio access network (RAN) for communicating between the wireless terminal and the core network. The system also includes a baseband unit (BBU) coupled to the core network, and configured to perform at least a second-level protocol of the RAN. A fronthaul link is coupled to the BBU and the RRU. The fronthaul link utilizes an adaptive fronthaul protocol for communication between the BBU and the RRU. The adaptive fronthaul protocol has provisions for adapting to conditions of the fronthaul link and radio network by changing the way data is communicated over the fronthaul link.
    Type: Application
    Filed: September 11, 2017
    Publication date: January 11, 2018
    Inventors: Dario Fertonani, Alan Barbieri
  • Publication number: 20180013597
    Abstract: A distributed radio frequency communication system facilitates communication between a wireless terminal and a core network. The system includes a remote radio unit (RRU) coupled to at least one antenna to communicate with the wireless terminal. The RRU includes electronic circuitry to perform at least a first portion of a first-level protocol of a radio access network (RAN) for communicating between the wireless terminal and the core network. The system also includes a baseband unit (BBU) coupled to the core network, and configured to perform at least a second-level protocol of the RAN. A fronthaul link is coupled to the BBU and the RRU. The fronthaul link utilizes an adaptive fronthaul protocol for communication between the BBU and the RRU. The adaptive fronthaul protocol has provisions for adapting to conditions of the fronthaul link and radio network by changing the way data is communicated over the fronthaul link.
    Type: Application
    Filed: September 11, 2017
    Publication date: January 11, 2018
    Inventors: Alan Barbieri, Dario Fertonani
  • Publication number: 20180014336
    Abstract: Improvements to signaling procedures for use in physical random access channel (PRACH)-based proximity detection are disclosed. Signaling and signaling processes from a serving base station may trigger a more efficient and reliable transmission of PRACH from related user equipment (UE). At the dynamic power nodes (DPNs) monitoring for such PRACH-based proximity, features are disclosed which establish neighbor lists for more efficient management of detection and proximity activation.
    Type: Application
    Filed: September 22, 2017
    Publication date: January 11, 2018
    Inventors: Alan Barbieri, Hao Xu, Vikas Jain, Durga Prasad Malladi, Awaiz Ahmad Khan, Samatha Kotla, Balwinderpal Sachdev
  • Publication number: 20170373890
    Abstract: A distributed radio frequency communication system facilitates communication between a wireless terminal and a core network. The system includes a remote radio unit (RRU) coupled to at least one antenna to communicate with the wireless terminal. The RRU includes electronic circuitry to perform at least a first portion of a first-level protocol of a radio access network (RAN) for communicating between the wireless terminal and the core network. The system also includes a baseband unit (BBU) coupled to the core network, and configured to perform at least a second-level protocol of the RAN. A fronthaul link is coupled to the BBU and the RRU. The fronthaul link utilizes an adaptive fronthaul protocol for communication between the BBU and the RRU. The adaptive fronthaul protocol has provisions for adapting to conditions of the fronthaul link and radio network by changing the way data is communicated over the fronthaul link.
    Type: Application
    Filed: September 11, 2017
    Publication date: December 28, 2017
    Inventors: Dario Fertonani, Alan Barbieri
  • Patent number: 9814073
    Abstract: Improvements to signaling procedures for use in physical random access channel (PRACH)-based proximity detection are disclosed. Signaling and signaling processes from a serving base station may trigger a more efficient and reliable transmission of PRACH from related user equipment (UE). At the dynamic power nodes (DPNs) monitoring for such PRACH-based proximity, features are disclosed which establish neighbor lists for more efficient management of detection and proximity activation.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: November 7, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Alan Barbieri, Hao Xu, Vikas Jain, Durga Prasad Malladi, Awaiz Ahmad Khan, Samatha Kotla, Balwinderpal Sachdev
  • Patent number: 9801117
    Abstract: Techniques are provided for channel discovery. For example, there is provided a method operable by a mobile entity that may involve measuring beacon signals associated with the network. In one approach, the method may involve, in response to detecting an Authorized Shared Access (ASA) beacon signal on a frequency common to each network entity on a given ASA channel, extracting frequency information from the ASA beacon signal, wherein the ASA beacon signal comprises a single frequency network (SFN) beacon signal. In another approach, the method may involve, in response to detecting an ASA beacon signal on a frequency common to each network entity on a given ASA channel, extract frequency information from the ASA beacon signal, wherein timing correlates with an operating frequency for the ASA beacon signal.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: October 24, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Peter Gaal, Alan Barbieri, Rajat Prakash
  • Patent number: 9794026
    Abstract: Real-time selection of interference cancellation schemes based on transmission parameters and amount of resource overlap between the desired payload and the interfering payload. Codeword level interference cancellation may be performed where the signal quality of the interfering signal indicates that the interfering payload will be decoded correctly. When performed, codeword level interference cancellation may be monitored to determine if decoding the interfering payload is converging. Other interference cancellation schemes may be selected based on the signal quality of the interfering signal or non-converging decode of the interfering payload. The number of iterations for iterative decoding in codeword level interference cancellation may be dynamically selected. The decoder output (e.g., soft bits) may be used to perform interference cancellations before the decoder is fully converged.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: October 17, 2017
    Inventors: Alan Barbieri, Tao Luo
  • Patent number: 9781709
    Abstract: Rank indicator and channel quality indicator (CQI) estimation and reporting functionalities are discussed with regard to heterogeneous networks to reduce the number of inconsistent CQI estimates transmitted to an evolved node B (eNB), where the CQI is defined as inconsistent when the rank indicator, on which the CQI is conditioned, is from a different subframe type than the subframe on which the CQI is to be estimated.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: October 3, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Alan Barbieri, Tingfang Ji
  • Patent number: 9750030
    Abstract: Downlink rate adaptation in wireless communication systems are disclosed in which a UE reports RIs for both interference-free and interference-limited subframes. In general, the RI for the interference-free subframes will be higher than the RI reported for the interference-limited subframes. However, an eNB selects an RI and a transmission rate for interference-limited subframes based on what the UE can sustain instead of based only on the RI reported by the UE.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: August 29, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Alan Barbieri, Vikas Jain, Muruganandam Jayabalan, Tao Luo, Saikiran Nudurupati, Fang Chen
  • Patent number: 9642147
    Abstract: Certain aspects of the present disclosure propose methods and apparatus to transmit information about number of active UEs in a cell (e.g., pico cell) that need protection to an interfering cell (e.g., a macro cell). The information may be transmitted in a resource status update message. The active users may be defined as users whose downlink performance and/or quality of service are limited by the available number of protected resources.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: May 2, 2017
    Assignee: QUALCOMM INCORPORATED
    Inventors: Alan Barbieri, Ajay Gupta, Vikas Jain, Osok Song
  • Patent number: 9609536
    Abstract: Certain aspects of the present disclosure provide techniques and apparatuses for wireless communications. According to certain aspects, a set of protected resources, allocated to a base station of a first cell, that are protected by restricting transmissions of a second cell is determined and received power of a first reference signal from the base station in the set of resources is measured. According to certain aspects, a subset of one or more neighbor base stations that have reduced interference in a set of protected resources is determined and received power measurements for the subset of neighbor cells is excluded when calculating receive signal quality measurements for the subframe.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: March 28, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Alan Barbieri, Tingfang Ji, Aleksandar Damnjanovic, Peter Gaal, Tao Luo
  • Patent number: 9584285
    Abstract: Periodic over-the-air channel state information (CSI) reporting to serving cells and one or more non-serving cells via a control channel multi-point attachment is disclosed. The channel state information report may be transmitted based on information indicating how to transmit the channel state information report to the non-serving cell. The information indicating how to transmit the channel state information report may be provided by the serving eNodeB. The information may include a periodicity, offset parameters, timing advance commands, power control commands, and/or an aperiodic report request.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: February 28, 2017
    Assignee: QUALCOMM INCORPORATED
    Inventors: Alan Barbieri, Tingfang Ji, Hao Xu, Wanshi Chen
  • Patent number: 9578515
    Abstract: Techniques are provided for frequency spectrum sharing that allows secondary operators to access a frequency band of a primary operator without interfering with the primary operator's use of the band, while ensuring service continuity for devices of the secondary operators. For example, there is provided a method that may involve identifying an outage on a first channel of a plurality of channels of a spectrum, wherein each of the plurality of channels is allocated to one of a plurality of operators. The method may involve migrating all mobile stations in communication over the first channel of the plurality of channels to at least one other channel of the plurality of channels during the outage.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: February 21, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Peter Gaal, Alan Barbieri, Rajat Prakash, Yi Huang
  • Patent number: 9544115
    Abstract: Methods and apparatuses are described for improving identification of reference signal transmissions at a user equipment (UE). One or more restrictions related to reference signal transmissions in one or more interfering signals can be identified. One or more reference signal transmissions received in the one or more interfering signals can then be detected based at least in part on the one or more restrictions. The one or more reference signal transmissions received in the one or more interfering signals can be processed to improve communications with a serving base station.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: January 10, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Alan Barbieri, Milos Jorgovanovic, Tao Luo