Patents by Inventor Cássio Barboza Ribeiro

Cássio Barboza Ribeiro 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: 10652936
    Abstract: Methods, apparatuses, systems, and computer program products for transmitting/receiving scheduling assignment(s) (SAs) are provided. One method is directed to including a short version of a target ID (i.e., short ID) in a SA. The method may also include transmitting the SA including the short ID to one or more monitoring UE(s). The monitoring UE(s) may then compare the short ID to target ID(s) being monitored. The corresponding data from the SA may be decoded if there is a match between the short ID and any of the target ID(s).
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: May 12, 2020
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Cássio Barboza Ribeiro, Juha Sakari Korhonen
  • Patent number: 10250364
    Abstract: An aspect of this invention is a definition of a set of reused channel state information reference signal (CSI-RS) resources among transmission points, which can be lower power nodes, for intra-cell coordinated multi-point (CoMP) operation. Separate CSI-RS resources are defined for each transmission point for sporadic separate measurements to be made by user equipment. The sporadic measurements may be implemented with low additional overhead, and are used for generating potentially simplified CSI feedback to an evolved NodeB that enables adapting shared channel reuse and also potentially making related channel quality indicator (CQI) compensation.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: April 2, 2019
    Assignee: Nokia Corporation
    Inventors: Cássio Barboza Ribeiro, Pekka Markus Nikolai Janis, Klaus Hugl
  • Patent number: 10237833
    Abstract: According to an example embodiment of this application, a method may include by a processor, processing communication with a network element, the communication comprising one or more frames, wherein each frame comprises at least two subframes; receiving a signaling indicating definition of subframe groups; receiving a power control command for controlling a transmission power; and applying the power control command.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: March 19, 2019
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Cássio Barboza Ribeiro, Juha Sakari Korhonen, Esa Tapani Tiirola, Kari Pekka Pajukoski
  • Publication number: 20190069218
    Abstract: A method including receiving information on a first channel on preconfigured channel elements in a transmission time interval of a wireless communication system, wherein the information on the first channel includes first system information and downlink control information related to a transmission of second system information on a second channel in the transmission time interval. The method may further include receiving the second system information based on the downlink control information.
    Type: Application
    Filed: November 4, 2016
    Publication date: February 28, 2019
    Inventors: Cassio Barboza RIBEIRO, Timo Erkki Lunttila, Juha Heiskala, Michal Cierny, Klaus Hugl
  • Publication number: 20180213562
    Abstract: There is provided a method comprising determining, at a first access point, whether a carrier from a plurality of carriers is a primary listen-before-talk carrier or a secondary listen-before-talk carrier and providing information using the carrier, said information comprising an indication of whether the respective carrier is a primary listen-before-talk carrier or a secondary listen-before-talk carrier.
    Type: Application
    Filed: August 17, 2015
    Publication date: July 26, 2018
    Inventors: Michal CIERNY, Klaus HUGL, Timo Erkki LUNTTILA, Cassio Barboza RIBEIRO
  • Patent number: 9942742
    Abstract: A technique may include transmitting, by a user device in a proximity-based services wireless network via a first time-frequency resource identified by a first logical time index within N logical time resources and a first logical frequency index in the range from 0 to M?1, a first occurrence of a signal for the user device during a transmission period; determining a time index adjustment associated with the first logical frequency index; determining, by the user device, a second logical time index of a second time-frequency resource for transmitting from the user device a second occurrence of the signal within the transmission period, the second logical time index being determined based on the first logical time index and the time index adjustment associated with the first logical frequency index; and transmitting, by the user device via the second time-frequency resource, a second occurrence of the signal during the transmission period.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: April 10, 2018
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Weidong Yang, Juha Sakari Korhonen, Esa Tapani Tiirola, Cassio Barboza Ribeiro
  • Patent number: 9743425
    Abstract: Systems and techniques for resource allocation for scheduling assignment. A scheduling assignment is transmitted and/or received using resources that are divided into first and second scheduling assignment resources. A dual resource mapping in accordance with an scheduling assignment index is performed to define first and second resources for transmission and/or reception of the scheduling assignment.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: August 22, 2017
    Assignee: Nokia Technologies Oy
    Inventors: Weidong Yang, Juha S. Korhonen, Esa T. Tiirola, Cassio Barboza Ribeiro
  • Patent number: 9736833
    Abstract: One embodiment is directed to a method for operating base stations in a heterogeneous network. The method may include receiving, by a first base station, an indication for a second base station to use flexible time division duplex mode (502), assessing an amount of interference that will be caused by the second base station (504)-(508), deciding how to adjust a transmission power of the second base station (509), and sending the second base station a request to adjust the transmission power (510).
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: August 15, 2017
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Cassio Barboza Ribeiro, Michal Cierny
  • Patent number: 9693299
    Abstract: In accordance with an example embodiment of the present invention, a method comprises determining at a base station an activity level, and selecting an availability mode based at least in part on the activity level, wherein the availability mode is one of a full-availability mode, a semi-availability mode and a minimum-availability mode. The method also comprises configuring radio resources for at least the minimum-availability mode and switching to the selected availability mode.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: June 27, 2017
    Assignee: NOKIA TECHNOLOGY OY
    Inventors: Klaus Franz Doppler, Jarkko Lauri Sakari Kneckt, Juha Sakari Korhonen, Cassio Barboza Ribeiro
  • Patent number: 9602178
    Abstract: Various communication systems may benefit from joint precoder and receiver designs for multi-user multiple-input and multiple-output. For example, machine-type communication in long term evolution communication systems may benefit from such designs. A method can include determining channel status information of a current connection. The method can also include indicating the channel status information to a transmitter. The method can further include receiving weight values for a first receiver filter, in response to the channel status information. The method can also include defining the first receiver filter based on the weight values. The method can further include determining effective channel status information of a current connection, and interference from other transmitters. The method can also include defining a second receiver filter based on the weight values, the effective channel status information of the current connection, and the interference.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: March 21, 2017
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Cássio Barboza Ribeiro, Carl Wijting, Ugurlu Umut
  • Publication number: 20160360544
    Abstract: Systems and techniques for resource allocation for scheduling assignment. A scheduling assignment is transmitted and/or received using resources that are divided into first and second scheduling assignment resources. A dual resource mapping in accordance with an scheduling assignment index is performed to define first and second resources for transmission and/or reception of the scheduling assignment.
    Type: Application
    Filed: June 5, 2015
    Publication date: December 8, 2016
    Inventors: Weidong Yang, Juha S. Korhonen, Esa T. Tiirola, Cassio Barboza Ribeiro
  • Patent number: 9351340
    Abstract: In accordance with an example embodiment of the present invention, a method is disclosed that comprises measuring a first link quality of a first link based at least in part on a first power value; measuring a second link quality of a second link based at least in part on a second power value; and determining a suitable device-to-device (D2D) mode for a D2D connection based at least in part on the first link quality, the second link quality, and one or more D2D user equipment (UE) constraints.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: May 24, 2016
    Assignee: Nokia Technologies Oy
    Inventors: Cassio Barboza Ribeiro, Klaus Franz Doppler, Timo Kalevi Koskela, Tao Chen, Sami-Jukka Hakola
  • Publication number: 20160095099
    Abstract: A technique may include transmitting, by a user device in a proximity-based services wireless network via a first time-frequency resource identified by a first logical time index within N logical time resources and a first logical frequency index in the range from 0 to M?1, a first occurrence of a signal for the user device during a transmission period; determining a time index adjustment associated with the first logical frequency index; determining, by the user device, a second logical time index of a second time-frequency resource for transmitting from the user device a second occurrence of the signal within the transmission period, the second logical time index being determined based on the first logical time index and the time index adjustment associated with the first logical frequency index; and transmitting, by the user device via the second time-frequency resource, a second occurrence of the signal during the transmission period.
    Type: Application
    Filed: September 24, 2015
    Publication date: March 31, 2016
    Inventors: Weidong YANG, Juha Sakari KORHONEN, Esa Tapani TIIROLA, Cassio Barboza RIBEIRO
  • Publication number: 20150372727
    Abstract: Various communication systems may benefit from joint precoder and receiver designs for multi-user multiple-input and multiple-output. For example, machine-type communication in long term evolution communication systems may benefit from such designs. A method can include determining channel status information of a current connection. The method can also include indicating the channel status information to a transmitter. The method can further include receiving weight values for a first receiver filter, in response to the channel status information. The method can also include defining the first receiver filter based on the weight values. The method can further include determining effective channel status information of a current connection, and interference from other transmitters. The method can also include defining a second receiver filter based on the weight values, the effective channel status information of the current connection, and the interference.
    Type: Application
    Filed: June 23, 2014
    Publication date: December 24, 2015
    Inventors: Cássio Barboza RIBEIRO, Carl WIJTING, Ugurlu UMUT
  • Publication number: 20150271857
    Abstract: Methods, apparatuses, systems, and computer program products for transmitting/receiving scheduling assignment(s) (SAs) are provided. One method is directed to including a short version of a target ID (i.e., short ID) in a SA. The method may also include transmitting the SA including the short ID to one or more monitoring UE(s). The monitoring UE(s) may then compare the short ID to target ID(s) being monitored. The corresponding data from the SA may be decoded if there is a match between the short ID and any of the target ID(s).
    Type: Application
    Filed: March 2, 2015
    Publication date: September 24, 2015
    Inventors: Cássio Barboza RIBEIRO, Juha Sakari KORHONEN
  • Patent number: 9072060
    Abstract: A network determines that a first radio node communicating on a radio resource with a second radio node is interfering with a third radio node communicating on the radio resource with the network. The network manages the interference by controlling transmit power of at least one of the first radio node and the third radio node. It may be by sending a command that indicates an amount by which the first or second radio node is to decrease its transmit power; and/or that indicates an amount by which the third radio node is to boost its transmit power. The network can measure a sounding signal it triggers from the first radio node, measure and compare to a threshold that guarantees a QoS for the third radio node, and compute appropriate backoff or boost values. The first and second radio nodes may be using device-to-device communications or a femto network.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: June 30, 2015
    Assignee: Nokia Technologies Oy
    Inventors: Klaus Hugl, Cassio Barboza Ribeiro, Klaus F. Doppler, Carl S. Wijting, Pekka Markus Nikolai Janis
  • Patent number: 9025487
    Abstract: A method includes receiving information indicating one or more sets of reference signal patterns from a first transmission point, wherein at least one of the indicated one or more sets of reference signal patterns corresponds to one of one or more other transmission points; measuring the channel quality for the indicated sets of reference signal patterns; and reporting indications of the measured channel quality for the indicated one or more sets of reference signal patterns to the first transmission point. Another method includes transmitting information indicating one or more sets of reference signal patterns from a first transmission point to a user equipment, wherein at least one of the indicated one or more sets of reference signal patterns corresponds to one of one or more other transmission points; and receiving from the user equipment indications of measured channel quality for the indicated one or more sets of reference signal patterns.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: May 5, 2015
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Klaus Hugl, Cassio Barboza Ribeiro, Timo Lunttila
  • Publication number: 20150078216
    Abstract: One embodiment is directed to a method for operating base stations in a heterogeneous network. The method may include receiving, by a first base station, an indication for a second base station to use flexible time division duplex mode (502), assessing an amount of interference that will be caused by the second base station (504)-(508), deciding how to adjust a transmission power of the second base station (509), and sending the second base station a request to adjust the transmission power (510).
    Type: Application
    Filed: May 7, 2013
    Publication date: March 19, 2015
    Applicant: Nokia Corporation
    Inventors: Cassio Barboza Ribeiro, Michal Cierny
  • Patent number: 8892092
    Abstract: Disclosed are apparatus, methods and computer programs to establish device-to-device communications in a wireless network. A method includes sending an initiation message from a first device to initiate device-to-device communication with a second device; receiving a message indicating a request for setting up radio resources for device-to-device communication; sending a message to the second device, the message including a request to set up resources for device-to-device communication and, in response to establishing device-to-device communication with the second device using the resources, sending an acknowledgment that device-to-device communication is established.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: November 18, 2014
    Assignee: Nokia Corporation
    Inventors: Carl Wijting, Klaus F. Doppler, Cassio Barboza Ribeiro, Mika P. Rinne
  • Publication number: 20140254398
    Abstract: Systems and techniques for data traffic management are described. A base station providing data communication services to user devices and capable of transferring traffic to one or more wireless network access points receives data queuing latency information relating to data queuing latency experienced by the one or more user devices, access points, or both. The base station makes determinations relating to offloading of traffic to access points, such as from wireless cellular network frequencies to wireless local area network resources, based on the latency information.
    Type: Application
    Filed: March 5, 2013
    Publication date: September 11, 2014
    Applicant: NOKIA CORPORATION
    Inventors: Zexian Li, Cassio Barboza Ribeiro, Esa M. Malkamaki, Antti S. Sorri