Patents by Inventor Cassio Ribeiro

Cassio 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).

  • Publication number: 20150341773
    Abstract: Methods, apparatuses, and computer program products for efficient signaling in a system supporting D2D over the air discovery are provided. One method may include receiving at a user equipment an indication of screening policies and related parameters for beacon signals received from other devices. The method may then include detecting the beacon signals and applying the screening policies and related parameters to determine which of the detected beacon signals should be included in a report. The method may also include leaving out from the report any of the detected beacon signals that do not meet the screening policies' requirements and/or criteria, and transmitting the report from the user equipment to a network node.
    Type: Application
    Filed: December 21, 2012
    Publication date: November 26, 2015
    Inventors: Cássio Ribeiro, Zexian Li, Juha Korhonen, Carl Wijting
  • Publication number: 20150319723
    Abstract: Methods, apparatuses, and computer program products for synchronization in a network are provided. One method includes configuring a first node for joining a first timings synchronization group with a second node on a lowest stratum, receiving at least one synchronization signal comprising information on at least an identity of the second node, and synchronizing the first node to the first synchronization group based on the synchronization signal.
    Type: Application
    Filed: January 17, 2014
    Publication date: November 5, 2015
    Inventors: Juha S. KORHONEN, Cassio RIBEIRO
  • Patent number: 9107202
    Abstract: An apparatus for providing coordination of device to device communication may include a processor. The processor is configured to communicate a request for a resource allocation to a network communication node (300). The resource allocation is related to resources usable for device to device communication between a first terminal communicating the request and a second terminal. The processor is further configured to receive a resource allocation including an amount and duration of resources to be used for the device to device communication in response to the request (310), and utilize the resource allocation for device to device communication with the second terminal (320).
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: August 11, 2015
    Assignee: Nokia Corporation
    Inventors: Klaus Doppler, Carl Wijting, Cassio Ribeiro, Mika Rinne
  • Publication number: 20150117338
    Abstract: Methods, apparatuses, and computer programs for providing a flexible frequency location for a backwards compatible carrier in a communication system are provided. Embodiments of the invention enable a backwards compatible carrier segment supporting all or a subset of legacy LTE Release transmission modes to be located at an arbitrary position on the system bandwidth (BW) through a cyclic extension of reference signals, such as channel state information reference signals (CSI-RS), and/or other resource element configurations, such as interference measurement reference signals (IMRS), required for supporting PDSCH operation outside the backwards compatible carrier segment.
    Type: Application
    Filed: March 21, 2013
    Publication date: April 30, 2015
    Inventors: Pekka Janis, Cassio Ribeiro, Klaus Hugl
  • Publication number: 20150117310
    Abstract: In accordance with an example embodiment, a method is provided comprising receiving packets of at least one flow in a packet switching function, and based on at least one criterion, deciding in the packet switching function on switching the packets to one or both of a cellular transport radio and a wireless local area network transport radio. In some embodiments, the packet switching function is disposed in a protocol stack between a radio link control protocol layer and a medium access control protocol layer.
    Type: Application
    Filed: April 27, 2012
    Publication date: April 30, 2015
    Applicant: NOKIA CORPORATION
    Inventors: Li Zexian, Cassio Ribeiro, Esa Malkarnaki, Mikko Uusitalo, Antti Sorri
  • Publication number: 20150092656
    Abstract: One embodiment is directed to a method comprising determining to initiate a session; sending a first message over a channel in a subframe dedicated for initiating sessions; and transmitting an information indicating the resource where the next transmission of the session will happen.
    Type: Application
    Filed: September 26, 2014
    Publication date: April 2, 2015
    Inventors: Lars E. Lindh, Juha Sakari Korhonen, Zexian Li, Cassio Ribeiro, Vuokko Nurmela, Carl Wijting
  • Publication number: 20150050927
    Abstract: Systems, methods, apparatuses, and computer program products for signaling support for devices with multiple and/or flexible form factors are provided. One method includes determining, by a device having multiple forms and associated with a network, a current form or a change in the form of the device, determining new parameters according to the determined current form of the device, and reporting the new parameters to the network.
    Type: Application
    Filed: August 15, 2013
    Publication date: February 19, 2015
    Applicant: NOKIA CORPORATION
    Inventors: Martti MOISIO, Osman YILMAZ, Mikko A. UUSITALO, Cassio RIBEIRO, Carl WIJTING
  • Patent number: 8923190
    Abstract: In accordance with an example embodiment of the present invention, a method comprises mapping a first transmission channel to an existing channel of a network element; switching the network element to a secondary communication mode which is one of a secondary transmission mode and a secondary receiving mode; signaling at least one neighbor network element in the secondary communication mode to associate the network element with the at least one neighbor network element; and receiving a first signal on the mapped first transmission channel from the at least one associated network element.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: December 30, 2014
    Assignee: Nokia Corporation
    Inventors: Cassio Ribeiro, Olav Tirkkonen, Esa Tiirola, Kari Pajukoski
  • Publication number: 20140335875
    Abstract: Device discovery may be important in a variety of communication systems including, for example, wireless communication systems. Thus, certain embodiments may provide a device to device beacon design that may provide for efficient interference management and resource allocation. For example, a method may include preparing a proximity communication request including information about a device to device communication state of a discovered user equipment or resource usage of the discovered user equipment. The method may also include transmitting the proximity communication request to a base station.
    Type: Application
    Filed: April 30, 2014
    Publication date: November 13, 2014
    Applicant: Nokia Corporation
    Inventors: Zexian LI, Cassio RIBEIRO, Juha Sakari KORHONEN, Michal CIERNY
  • Publication number: 20140328294
    Abstract: In a non-limiting and example embodiment, a method is provided for controlling usage of prioritized radio channels, comprising: detecting (310), by a secondary user apparatus, an interference limitation of a first radio channel for which a primary user apparatus has priority over the secondary user apparatus, selecting (320), by the secondary user apparatus, the first radio channel for communication with another apparatus to a first direction after detecting the interference limitation, and selecting (330), by the secondary user apparatus, a second radio channel for communication with the other apparatus to a second direction, opposite to the first direction.
    Type: Application
    Filed: October 4, 2011
    Publication date: November 6, 2014
    Applicant: Nokia Corporation
    Inventors: Andrei Malkov, Antti Sorri, Cassio Ribeiro, Enrico Rantala
  • Publication number: 20140313948
    Abstract: Frame structures and signaling arrangements for interference aware scheduling may be applicable to a local area radio system to complement existing wide area cellular systems, like GSM/UMTS/HSPA/LTE. In certain embodiments a method is provided including preparing a frame for transmission in a wireless communication system. The method can also include incorporating an interference report into the frame. The interference report is directly associated with a corresponding resource. The method can further include transmitting the interference report within the frame in the wireless communication system.
    Type: Application
    Filed: January 4, 2011
    Publication date: October 23, 2014
    Applicant: Nokia Corporation
    Inventors: Pekka Jänis, Cássio Ribeiro, Klaus Hugl
  • Publication number: 20140078934
    Abstract: In accordance with the exemplary embodiments of the invention there is at least a method and an apparatus to perform operations including estimating, with a user equipment, one or more delays between receipts at the user equipment of transmissions from a plurality of transmission nodes (610); determining channel state information by compensating for the estimated one or more delays (620); and sending indications of the channel state information and the estimated one or more delays to at least one of the plurality of transmission nodes (630).
    Type: Application
    Filed: May 2, 2012
    Publication date: March 20, 2014
    Applicant: Nokia Corporation
    Inventors: Klaus Hugl, Cássio Ribeiro
  • Patent number: 8638719
    Abstract: Inter-cell interference coordination of multiple transmission ranks can be accomplished by various methods and apparatuses. For example, a method can include defining indexing of resources for which a base station will restrict a maximum rank for transmission. The method can also include informing a neighboring base station of the first base station about the resources for which the base station will restrict the maximum rank of transmission.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: January 28, 2014
    Assignee: Nokia Corporation
    Inventors: Klaus Doppler, Cassio Ribeiro, Marko Lampinen, Olav Tirkkonen
  • Publication number: 20130281143
    Abstract: In accordance with an example embodiment of the present invention, a method comprises receiving at a controlling node an interference measurement report from a first node; determining from a transmission schedule a transmit activity by a second node during an interference measurement period associated with the interference measurement report; estimating a contributing interference from the transmit activity by the second node during the measurement period; and causing an adjustment to the contributing interference.
    Type: Application
    Filed: September 14, 2010
    Publication date: October 24, 2013
    Applicant: NOKIA CORPORATION
    Inventors: Markus Nentwig, Pekka Jänis, Cássio Ribeiro, Chunyan Gao, Haiming Wang
  • Patent number: 8554200
    Abstract: An approach for providing interference measurements for device-to-device communication is disclosed. A logic generates a control signal to instruct a plurality of stations to perform measurement relating to interference or path loss by the stations. The logic then receives measurement information from the stations and determines, based on the measurement information, whether resources are to be scheduled to provide direct communication between two of the stations.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: October 8, 2013
    Assignee: Nokia Corporation
    Inventors: Cassio Ribeiro, Juha Korhonen, Pekka Janis, Klaus Doppler, Carl Wijting, Olav Tirkkonen, Klaus Hugl
  • Publication number: 20130258989
    Abstract: An apparatus, method and system to set a control channel configuration in a response to an indication of interference in a communication system. In one embodiment, an apparatus includes a processor 520 and memory 550 including computer program code. The memory 550 and the computer program code are configured to, with the processor 520, cause the apparatus to detect interference for the apparatus operable on a communication system from another communication system, and provide an indication of the interference to a base station. The memory 550 and the computer program code are further configured to, with the processor 520, cause the apparatus to receive an indication of a relocation of at least a portion of a control channel to a protected area in response to a signal from the base station.
    Type: Application
    Filed: December 20, 2010
    Publication date: October 3, 2013
    Applicant: NOKIA CORPORATION
    Inventors: Cassio Ribeiro, Klaus Doppler, Jarkko Kneckt
  • Publication number: 20130163519
    Abstract: A method, apparatus, and computer program is provided which allows an access point that is operating in multiple bands to be able to have a conflict-free cell identity when hopping to different bands. A first message is received, at an access point, indicating that a reassignment of cell identities has been triggered in a first band. A second message is transmitted, at the access point, indicating if the access point will participate in the reassignment.
    Type: Application
    Filed: June 26, 2011
    Publication date: June 27, 2013
    Applicant: NOKIA CORPORATION
    Inventors: Cassio Ribeiro, Klaus Doppler, Olav Tirkkonen
  • Publication number: 20120281670
    Abstract: In accordance with an example embodiment of the present invention, an apparatus is disclosed that includes a resource module configured to allocate a first resource and a second resource that are at least partially synchronized in at least one of a time domain and a frequency domain in such a way that the first resource and the second resource share at least one of an overlapping frequency band and a same time slot. The apparatus also includes a transceiver configured to transmit a first signal on the first resource and receive a second signal on the second resource, wherein at least one of the first signal and the second signal is at least partially orthogonalized with respect to a third signal that is transmitted on one of the first resource and the second resource from a neighbor network device.
    Type: Application
    Filed: November 3, 2009
    Publication date: November 8, 2012
    Inventors: Esa Tapani Tiirola, Kari Pekka Pajukoski, Cassio Ribeiro, Olav Tirkkonen
  • Patent number: 8279851
    Abstract: An apparatus, system, and method for a communication network that includes a mobile device, a target device, and a connection settings server. The mobile device is configured to transmit a request for device-to-device connection settings data to the connection settings server, the connection settings server is configured to receive the request, determine appropriate device-to-device connection settings data, and transmit the appropriate device-to-device connection settings data to the mobile device, the mobile device is further configured to receive the appropriate device-to-device connection settings data and establish a device-to-device connection with the target device, wherein the establishing of the device-to-device connection is facilitated by the device-to-device connection settings data.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: October 2, 2012
    Assignee: Nokia Corporation
    Inventors: Klaus Doppler, Cassio Ribeiro, Carl Simon Wijting, Mika P. Rinne, Klaus Hugl
  • Publication number: 20120140706
    Abstract: Inter-cell interference coordination of multiple transmission ranks can be accomplished by various methods and apparatuses. For example, a method can include defining indexing of resources for which a base station will restrict a maximum rank for transmission. The method can also include informing a neighboring base station of the first base station about the resources for which the base station will restrict the maximum rank of transmission.
    Type: Application
    Filed: December 2, 2010
    Publication date: June 7, 2012
    Applicant: NOKIA CORPORATION
    Inventors: Klaus Doppler, Cassio Ribeiro, Marko Lampinen, Olav Tirkkonen