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: 20120113794
    Abstract: Systems and methods for providing an efficient mechanism for transmitting interference vectors to communications terminals, such as user equipments (UEs), in an over the air radio telecommunications network with spatially multiplexed multiple user multiple input multiple output (MU-MIMO) capability. A new pre-coding information downlink channel is defined. Messages containing semi-persistent interference vector information for MU-MIMO user equipment are defined and transmitted over the new channel in a manner that allows infrequent transmission and efficient use of resources. Using the interference vectors and applying inter-user interference adaptation to received messages, the UEs may receive spatially multiplexed MIMO transmissions and actively remove inter-user interference after reception of the messages. Compression of the pre-coding vector information transmitted over the pre-coding information channel may result in additional increases in efficiency in the system.
    Type: Application
    Filed: January 28, 2010
    Publication date: May 10, 2012
    Applicant: Nokia Corporation
    Inventors: Timo Roman, Cássio Ribeiro, Tommi Koivisto, Lars Lindh
  • Publication number: 20110106952
    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: Application
    Filed: May 15, 2008
    Publication date: May 5, 2011
    Applicant: NOKIA CORPORATION
    Inventors: Klaus Doppler, Carl Wijting, Cássio Ribeiro, Mika Rinne
  • Publication number: 20110103317
    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: Application
    Filed: November 2, 2009
    Publication date: May 5, 2011
    Applicant: NOKIA CORPORATION
    Inventors: Cassio Ribeiro, Olav Tirkkonen, Esa Tiirola, Kari Pajukoski
  • Publication number: 20100093364
    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: Application
    Filed: September 11, 2009
    Publication date: April 15, 2010
    Applicant: Nokia Corporation
    Inventors: Cassio Ribeiro, Juha S. Korhonen, Pekka Janis, Klaus Doppler, Carl Wijting, Olav Tirkkonen, Klaus Hugl
  • Publication number: 20100040029
    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: Application
    Filed: August 15, 2008
    Publication date: February 18, 2010
    Inventors: Klaus Doppler, Cassio Ribeiro, Carl Simon Wijting, Mika P. Rinne, Klaus Hugl
  • Publication number: 20100011110
    Abstract: An apparatus, system, and method for a communication network that includes base stations, mobile terminals, and media servers. A base station may receive enable a device-to-device connection between a media server and a mobile terminal. The mobile terminal and the media server may establish the enabled device-to-device connection to create an underlay network within the cellular network, the underlay network including the mobile terminal, the media server, and the device-to-device connection. In some embodiments, the mobile terminal and the media server each include a device-to-device radio that is used to establish and maintain the device-to-device connection.
    Type: Application
    Filed: July 14, 2008
    Publication date: January 14, 2010
    Inventors: Klaus Doppler, Cassio Ribeiro, Carl S. Wijting, Klaus Hugl, Mika P. Rinne, Juha S. Korhonen, Timo Eric Roman