Patents by Inventor Luis Miguel Santos Barreto
Luis Miguel Santos Barreto 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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Publication number: 20180352388Abstract: A method to control cell selection and/or re-selection in a communication system comprising a plurality of cells with which terminal devices may communicate, the method including the steps of: determining that a terminal device is to start a session for a certain service, the service using a reception frequency; based on that determination, changing at least one cell selection and/or re-selection parameter in respect of the terminal device with the effect that a subsequent cell selection and/or re-selection performed by the device would favor cells that use the reception frequency used in the service session over other cells.Type: ApplicationFiled: June 6, 2018Publication date: December 6, 2018Inventors: Sari Kaarina Nielsen, Luis Miguel Santos Barreto, Quan Tat, Kimmo Tapio Kettunen, Jussi Olavi Numminen
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Patent number: 10015644Abstract: A method to control cell selection and/or re-selection in a communication system comprising a plurality of cells with which terminal devices may communicate, the method including the steps of: determining that a terminal device is to start a session for a certain service, the service using a reception frequency; based on that determination, changing at least one cell selection and/or re-selection parameter in respect of the terminal device with the effect that a subsequent cell selection and/or re-selection performed by the device would favor cells that use the reception frequency used in the service session over other cells.Type: GrantFiled: July 11, 2017Date of Patent: July 3, 2018Assignee: Conversant Wireless Licensing S.a.r.l.Inventors: Sari Kaarina Nielsen, Luis Miguel Santos Barreto, Quan Tat, Kimmo Tapio Kettunen, Jussi Olavi Numminen
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Publication number: 20170374534Abstract: A method to control cell selection and/or re-selection in a communication system comprising a plurality of cells with which terminal devices may communicate, the method including the steps of: determining that a terminal device is to start a session for a certain service, the service using a reception frequency; based on that determination, changing at least one cell selection and/or re-selection parameter in respect of the terminal device with the effect that a subsequent cell selection and/or re-selection performed by the device would favor cells that use the reception frequency used in the service session over other cells.Type: ApplicationFiled: July 11, 2017Publication date: December 28, 2017Inventors: Sari Kaarina Nielsen, Luis Miguel Santos Barreto, Quan Tat, Kimmo Tapio Kettunen, Jussi Olavi Numminen
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Patent number: 9736657Abstract: A method to control cell selection and/or re-selection in a communication system comprising a plurality of cells with which terminal devices may communicate, the method including the steps of: determining that a terminal device is to start a session for a certain service, the service using a reception frequency; based on that determination, changing at least one cell selection and/or re-selection parameter in respect of the terminal device with the effect that a subsequent cell selection and/or re-selection performed by the device would favor cells that use the reception frequency used in the service session over other cells.Type: GrantFiled: March 20, 2015Date of Patent: August 15, 2017Assignee: Core Wireless Licensing S.a.r.l.Inventors: Sari Kaarina Nielsen, Luis Miguel Santos Barreto, Quan Tat, Kimmo Tapio Kettunen, Jussi Olavi Numminen
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Publication number: 20150195685Abstract: A method to control cell selection and/or re-selection in a communication system comprising a plurality of cells with which terminal devices may communicate, the method including the steps of: determining that a terminal device is to start a session for a certain service, the service using a reception frequency; based on that determination, changing at least one cell selection and/or re-selection parameter in respect of the terminal device with the effect that a subsequent cell selection and/or re-selection performed by the device would favor cells that use the reception frequency used in the service session over other cells.Type: ApplicationFiled: March 20, 2015Publication date: July 9, 2015Inventors: Sari Kaarina Nielsen, Luis Miguel Santos Barreto, Quan Tat, Kimmo Tapio Kettunen, Jussi Olavi Numminen
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Apparatus, computer program product, and methods for flexible data unit segmentation and arrangement
Patent number: 9071988Abstract: Apparatus, computer program products and methods allow inclusion and segmentation of multiple SDUs within a PDU, and generate information (such as header information) necessary to identify, e.g., the position of the segmented SDUs within the PDU. Prior knowledge of the typically used (i.e., predetermined) SDU size is used to perform segmentation operations, hi one exemplary variant, apparatus, methods and computer program products determine if a particular one of a set of input data units (SDUs) is to be segmented in order to fit a portion of the set, including a segment of the particular input data unit, into an output data unit (PDU); segment the input data unit in response to determining the particular input data unit is to be segmented; add the portion of the set to a data portion of the output data unit, and add into the output data unit an indication of a position of the segment in the data portion.Type: GrantFiled: March 14, 2008Date of Patent: June 30, 2015Assignee: Core Wireless Licensing S.a.r.lInventors: Timothy Norris, Michael Whitehead, Luis Miguel Santos Barreto -
Patent number: 8862141Abstract: Systems, methods, and apparatuses are provided for facilitating allocation of a common resource to a terminal. A method may include transmitting one or more inbound packet data units including an indication of a category of a terminal and an indication of an identity of the terminal to a network node responsible for managing allocation of a common resource to the terminal. The method may further include receiving an absolute grant of a portion of the common resource to the terminal, wherein the absolute grant is issued by the network node based at least in part upon the transmitted indication of the category of the terminal. Corresponding systems and apparatuses are also provided.Type: GrantFiled: May 10, 2010Date of Patent: October 14, 2014Assignee: Nokia CorporationInventors: Luis Miguel Santos Barreto, Marcus Wimmer, Masatoshi Nakamata, Karri Markus Ranta-aho
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Patent number: 8781126Abstract: A method, apparatus and computer program product are provided to facilitate security in response to a handover from an initial network to a subsequent network, such as a handover between a packet-switched network and a circuit-switched network. The method, apparatus and computer program product may provide at least one security key for use in the subsequent network following handover from the initial network such that communications conducted via the subsequent network, including initial communications, may be secure. In order to provide at least one security key for use in the subsequent network, at least one security key of the initial network may be identified along with a nonce in response to a determination that a handover is to be made. The at least one security key of the subsequent network may then be determined based upon the at least one security key of the initial network and the nonce.Type: GrantFiled: November 2, 2009Date of Patent: July 15, 2014Assignee: Nokia CorporationInventors: Stuart Geary, Luis Miguel Santos Barreto, Simone Provvedi, Steven Franklin, Keiichi Kubota
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Patent number: 8605668Abstract: A user equipment UE obtains channel configurations from each of a serving cell and n neighbor cells which have been determined to be suitable for data communications with the UE, from which the UE creates a combined channel configuration and utilizes it for multipoint communications with those cells. In specific embodiments: the respective channel configurations are obtained from the respective cells' system information; the n neighbor cells are determined to be suitable by the UE comparing each cell's received signal strength/quality against a threshold. The UE may get a neighbor cell list NCL and the threshold and consider each cell on the NCL as one of the n neighbor cells if its signal strength/quality exceed the threshold, then the UE may acquire system information for only those n neighbor cells instead of all cells on the NCL. The UE then reports in uplink signaling that the n neighbor cells are suitable.Type: GrantFiled: April 28, 2011Date of Patent: December 10, 2013Assignee: Renesas Mobile CorporationInventors: Keiichi Kubota, Brian Alexander Martin, Luis Miguel Santos Barreto, Christopher Peter Callender
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Patent number: 8594748Abstract: An apparatus detects, over multiple transfers, an amount of data transferred to/from a network per transfer and/or an amount of time elapsed between transfers; and based at least on the detecting, the apparatus decides whether to trigger an early release from the network in order to at least reduce power consumption in the apparatus, where the decision is made in consideration of at least one configuration aspect of the network. In specific embodiments, the decision is made in consideration of availability and/or suitability of the power saving feature and configuration support in the network, which may be re-detected periodically; re-detection occurs after cell mobility, and/or network access element mobility and/or network control element mobility. An amount of useful data transfer per length of each connection for recent transfers can trigger the decision. Deactivating an early release may be based only on an amount of time that elapses between the transfers.Type: GrantFiled: February 21, 2009Date of Patent: November 26, 2013Assignee: Nokia CorporationInventors: Luis Miguel Santos Barreto, Timothy Norris, Stuart Geary
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Publication number: 20130039238Abstract: A wireless device operates such that at least a part of a radio system of the wireless device is temporarily shut down so as to be unable to receive downlink frames and is powered up so as to be capable of receiving downlink frames. The wireless device schedules the transmission time of an uplink frame to occur when the radio system of the wireless device has been powered up so that the wireless device is capable of receiving a downlink frame.Type: ApplicationFiled: August 12, 2011Publication date: February 14, 2013Inventors: Luis Miguel Santos Barreto, Stuart I. Geary, Frederic Garreau
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Publication number: 20120276915Abstract: A user equipment UE sends to a network an indication that a neighbor cell is suitable for data communications with the UE. The UE is in a state with a serving cell in which no dedicated physical channel is allocated to the UE. In response to the indication the network and UE conduct multipoint communications between the UE and the serving cell and the neighbor cell using a common channel configuration the UE receives from at least one of the serving cell and the neighbor cell. In a UTRAN embodiment the state is a CELL-FACH state. Various embodiments details specific RRC messages for various signaling, and in one embodiment there are different procedures depending on whether the serving cell and the neighbor cell belong to the same or different NodeB groups. Further embodiments address when the neighbor cell is no longer suitable for multipoint data communications with the UE.Type: ApplicationFiled: April 28, 2011Publication date: November 1, 2012Inventors: Keiichi Kubota, Brian Alexander Martin, Luis Miguel Santos Barreto, Christopher Peter Callender
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Publication number: 20120275389Abstract: A user equipment UE obtains channel configurations from each of a serving cell and n neighbor cells which have been determined to be suitable for data communications with the UE, from which the UE creates a combined channel configuration and utilizes it for multipoint communications with those cells. In specific embodiments: the respective channel configurations are obtained from the respective cells' system information; the n neighbor cells are determined to be suitable by the UE comparing each cell's received signal strength/quality against a threshold. The UE may get a neighbor cell list NCL and the threshold and consider each cell on the NCL as one of the n neighbor cells if its signal strength/quality exceed the threshold, then the UE may acquire system information for only those n neighbor cells instead of all cells on the NCL. The UE then reports in uplink signaling that the n neighbor cells are suitable.Type: ApplicationFiled: April 28, 2011Publication date: November 1, 2012Inventors: Keiichi Kubota, Brian Alexander Martin, Luis Miguel Santos Barreto, Christopher Peter Callender
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Publication number: 20120196609Abstract: Systems, methods, and apparatuses are provided for facilitating allocation of a common resource to a terminal. A method may include transmitting one or more inbound packet data units including an indication of a category of a terminal and an indication of an identity of the terminal to a network node responsible for managing allocation of a common resource to the terminal. The method may further include receiving an absolute grant of a portion of the common resource to the terminal, wherein the absolute grant is issued by the network node based at least in part upon the transmitted indication of the category of the terminal. Corresponding systems and apparatuses are also provided.Type: ApplicationFiled: May 10, 2010Publication date: August 2, 2012Applicant: NOKIA CORPORATIONInventors: Luis Miguel Santos Barreto, Markus Wimmer, Masatoshi Nakamata, Karri Markus Ranta-Aho
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Publication number: 20110002269Abstract: A method and a device for adapting a buffer of a terminal are provided, said method comprising the steps of (i) a network provides data to the terminal; and (ii) the terminal adapts its buffer based on the data provided. Furthermore, a communication system comprising such a device is provided.Type: ApplicationFiled: December 18, 2008Publication date: January 6, 2011Applicant: NOKIA CORPORATIONInventors: Kari Markus Ranta-Aho, Antti Anton Toskala, Woonhee Hwang, Luis Miguel Santos Barreto
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Publication number: 20100220862Abstract: A method, apparatus and computer program product are provided to facilitate security in response to a handover from an initial network to a subsequent network, such as a handover between a packet-switched network and a circuit-switched network. The method, apparatus and computer program product may provide at least one security key for use in the subsequent network following handover from the initial network such that communications conducted via the subsequent network, including initial communications, may be secure. In order to provide at least one security key for use in the subsequent network, at least one security key of the initial network may be identified along with a nonce in response to a determination that a handover is to be made. The at least one security key of the subsequent network may then be determined based upon the at least one security key of the initial network and the nonce.Type: ApplicationFiled: November 2, 2009Publication date: September 2, 2010Applicant: Nokia CorporationInventors: Stuart Geary, Luis Miguel Santos Barreto, Simone Provvedi, Steven Franklin, Keiichi Kubota
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Patent number: 7768962Abstract: A method and equipment by which a radio access network of a wireless network communicates to a user equipment wireless communication device an indication that the user equipment is to flush one or more send buffers. A flag is included in a message to indicate that the one or more send buffers are to be flushed. The message is for example a message indicating reconfiguration is to be performed, and the flag (if set) is to be interpreted by the user equipment as indicating that the one or more send buffers are to be flushed prior to performing the reconfiguration. A corresponding method and equipment for a user equipment wireless communication device are also provided.Type: GrantFiled: September 22, 2006Date of Patent: August 3, 2010Assignee: Nokia CorporationInventors: Keiichi Kubota, Benoist Sebire, Juho Pirskanen, Karri Ranta-Aho, Luis Miguel Santos Barreto, Michael Whitehead
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APPARATUS, COMPUTER PROGRAM PRODUCT, AND METHODS FOR FLEXIBLE DATA UNIT SEGMENTATION AND ARRANGEMENT
Publication number: 20100111106Abstract: Apparatus, computer program products and methods allow inclusion and segmentation of multiple SDUs within a PDU, and generate information (such as header information) necessary to identify, e.g., the position of the segmented SDUs within the PDU. Prior knowledge of the typically used (i.e., predetermined) SDU size is used to perform segmentation operations, hi one exemplary variant, apparatus, methods and computer program products determine if a particular one of a set of input data units (SDUs) is to be segmented in order to fit a portion of the set, including a segment of the particular input data unit, into an output data unit (PDU); segment the input data unit in response to determining the particular input data unit is to be segmented; add the portion of the set to a data portion of the output data unit, and add into the output data unit an indication of a position of the segment in the data portion.Type: ApplicationFiled: March 14, 2008Publication date: May 6, 2010Applicant: NOKIA CORPORATIONInventors: Timothy Norris, Michael Whitehead, Luis Miguel Santos Barreto -
Publication number: 20100027524Abstract: A method for mapping CS voice data in a packet data channel is described. A CS plane voice data unit which includes a data unit header that has information indicative of a timestamp is generated. The data unit is transmitted over a packet data channel that introduces radio jitter (e.g., a packet switched data channel). The CS plane voice data unit is received and mapping of the data unit is provided based upon the timestamp information. The header may include information indicative of a SN. The timestamp information may be a part of an adaptation layer counter field and the SN may be a part of a packet data control protocol sequencing number field. Alternatively, the timestamp information a may be a part of a first protocol layer SN field and the SN may be a part of a second protocol layer SN field. Apparatus and computer programs are also described.Type: ApplicationFiled: July 31, 2008Publication date: February 4, 2010Inventor: Luis Miguel Santos Barreto
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Publication number: 20090318199Abstract: An apparatus detects, over multiple transfers, an amount of data transferred to/from a network per transfer and/or an amount of time elapsed between transfers; and based at least on the detecting, the apparatus decides whether to trigger an early release from the network in order to at least reduce power consumption in the apparatus, where the decision is made in consideration of at least one configuration aspect of the network. In specific embodiments, the decision is made in consideration of availability and/or suitability of the power saving feature and configuration support in the network, which may be re-detected periodically; re-detection occurs after cell mobility, and/or network access element mobility and/or network control element mobility. An amount of useful data transfer per length of each connection for recent transfers can trigger the decision. Deactivating an early release may be based only on an amount of time that elapses between the transfers.Type: ApplicationFiled: February 21, 2009Publication date: December 24, 2009Applicant: Nokia CorporationInventors: Luis Miguel Santos Barreto, Timothy Norris, Stuart Geary