Patents by Inventor Lorenzo Casaccia

Lorenzo Casaccia 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: 8755357
    Abstract: A method and apparatus manages resources in a wireless communication system by transmitting a multi-carrier switch command message to an access terminal instructing the access terminal to switch between a diversity mode where each antenna module of a plurality antenna modules receives a single carrier signal transmitted at a single carrier frequency and a multi-carrier mode where a first antenna module of the plurality antenna modules receives a first multi-carrier signal transmitted at a first carrier frequency and a second antenna module receives a second multi-carrier signals transmitted at a second carrier frequency.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: June 17, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Lorenzo Casaccia, Durga Prasad Malladi
  • Publication number: 20140153923
    Abstract: Various exemplary methods and apparatus are directed to using Visible Light Communication (VLC) in a downlink, e.g., a supplemental downlink, in combination with a wireless radio downlink/ uplink pair. A gateway is coupled, via a wireline link, to a VLC access point. In some embodiments, the gateway includes a wireless radio base station. A user equipment device detects a visible light signal from the VLC access point, and transmits a radio signal to a communications device, e.g., a gateway including a base station or a macro base station, indicating that the UE device is in a VLC coverage area. The gateway configures the VLC access point to serve as a supplemental wireless cell which supports downlink communications. The gateway sends traffic signals to the VLC access point, via the wireline, which are converted by the VLC access point into VLC signals which are transmitted. The UE device receives VLC downlink traffic signals and transmits a corresponding acknowledgment signal via an uplink radio channel.
    Type: Application
    Filed: December 1, 2012
    Publication date: June 5, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Lorenzo Casaccia, Junyi Li, Thomas Joseph Richardson, Aleksandar Jovicic
  • Patent number: 8743861
    Abstract: A control scheme using packet headers allows GSM EDGE Radio Access Network (GERAN) systems to increase spectral efficiency through multiplexing techniques, such as superposition coding, multi-user packet transmission, joint detection, and/or joint decoding. A fast feedback scheme for GERAN allows Voice over Internet Protocol (VoIP) frames to be transmitted over GERAN air interfaces without excessive feedback latency. As a result, Hybrid Automatic Repeat-reQuest (H-ARQ) acknowledgements may be timely provided for end-to-end VoIP calls that traverse GERAN air interfaces. Additionally, Incremental Redundancy H-ARQ and link quality feedback latencies are decreased.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: June 3, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Aleksandar Damnjanovic, Lorenzo Casaccia, Niels Peter Skov Andersen
  • Patent number: 8694869
    Abstract: Transmission techniques are provided that improve service continuity and reduce interruptions in delivery of content that can be caused by transitions that occur when the User Equipment (UE) moves from one cell to the other, or when the delivery of content changes from a Point-to-Point (PTP) connection to a Point-to-Multipoint (PTM) connection in the same serving cell, and vice-versa. Such transmission techniques enable seamless delivery of content across cell borders and/or between different transmission schemes such as Point-to-Multipoint (PTM) and Point-to-Point (PTP). Mechanisms for adjusting different streams and for recovering content from each data block during such transitions are also provided so that data is not lost during a transition. In addition, mechanisms for realigning data during decoding at a receiving terminal are also provided.
    Type: Grant
    Filed: August 19, 2004
    Date of Patent: April 8, 2014
    Assignee: QUALCIMM Incorporated
    Inventors: Francesco Grilli, Alkinoos Hector Vayanos, Lorenzo Casaccia
  • Patent number: 8687607
    Abstract: Feedback from user stations to the base station for a multicast/broadcast transmission is performed by decoding multicast/broadcast data received from a transmitter on a downlink resource, forming a feedback message corresponding to the reception of the multicast/broadcast data, and queuing the feedback message for transmission to the transmitter on an uplink resource. The uplink resource used corresponds to the downlink resource used for the multicast/broadcast transmission. For unicast transmissions the uplink resource is dedicated to an uplink transmission corresponding to a downlink transmission on the downlink resource.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: April 1, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Lorenzo Casaccia, Francesco Grilli
  • Publication number: 20140064068
    Abstract: Interactions between radio access network (RAN)-based and legacy wireless local area network (WLAN) mobility is described in which a multi-mode mobile device receives a management indication from a wide area wireless network (WWAN) to manage connectivity with the WLAN, such as in discovery, association, or specific traffic offload for the WLAN. The mobile device obtains a status of its internal WLAN radio and determines whether to process the management indication based on the status. Data offloading is also described in which the mobile device receives an indication from the WWAN to offload data to the WLAN associated with the mobile device. In response, the mobile device suspends application of a current offload policy, which had been received from the core network, based on the indication and transmits its data according to the indication.
    Type: Application
    Filed: March 12, 2013
    Publication date: March 6, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Gavin B. Horn, Arnaud Meylan, Rohit Kapoor, Gerardo Giaretta, Durga Prasad Malladi, Lorenzo Casaccia
  • Patent number: 8626161
    Abstract: Systems and methodologies are described that facilitate enabling multiple address access between two or more networks. A home agent can update a binding cache with a particular proxy binding update (PBU) to include two or more network gateway IP addresses associated with a user equipment (UE) within two or more networks or systems. When the UE in idle mode moves between networks or systems to which registration has occurred, an attachment procedure is not performed since the home agent includes the network gateway IP addresses related to such UE. Thus, inter-system idle mode mobility is enabled without having to perform a full attachment, re-registration, or de-registration based on the network location of the UE.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: January 7, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Gerardo Giaretta, Kalle I. Ahmavaara, Lorenzo Casaccia, Georgios Tsirtsis
  • Publication number: 20130322302
    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus transmits a first set of capabilities to a first cell. The first set of capabilities is for communication with the first cell. The apparatus transmits information associated with a second set of capabilities to the first cell. The second set of capabilities is for communication with a second cell. The apparatus moves from the first cell to the second cell. The apparatus communicates with the second cell based on the transmitted information.
    Type: Application
    Filed: November 4, 2011
    Publication date: December 5, 2013
    Applicant: QUALCOMM INCORPORATED
    Inventors: Aziz Gholmieh, Lorenzo Casaccia, Xipeng Zhu, Masato Kitazoe, Osok Song
  • Patent number: 8593981
    Abstract: A remote station for a wireless communication system including a base station is disclosed. The remote station includes a front end structure configured to receive packet data in parallel on a subset of carrier frequencies. Each packet data is preceded by a header field for identifying the remote station as the recipient of the packet data and the subset of carrier frequencies is based on a set of a corresponding number of multiple carrier frequencies.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: November 26, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Lorenzo Casaccia, Durga Prasad Malladi
  • Patent number: 8488710
    Abstract: In a particular embodiment, a method of providing redundancy for error recovery in multi-carrier wireless communications includes transmitting a primary version of information via a first carrier, transmitting a first portion of a redundancy version of the information via a second carrier, and transmitting a second portion of the redundancy version of the information via a third carrier. The primary version is encoded using a first encoding scheme and the redundancy version is encoded using a second encoding scheme. The primary version, the first portion, and the second portion are transmitted substantially simultaneously.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: July 16, 2013
    Assignee: Qualcomm Incorporated
    Inventors: Lorenzo Casaccia, Durga Prasad Malladi
  • Patent number: 8477673
    Abstract: Providing for retransmission of SFN data, including SFN operated MBMS data, in a manner that preserves synchronization of scheduled SFN transmissions is disclosed herein. As an example, SFN data can be transmitted in a first allocation period, and an un-received or indecipherable SFN data packet associated with the SFN data can be scheduled in a second allocation period. More particularly, the un-received or indecipherable SFN data packet can be allocated to a block of the second allocation period that is scheduled for non-SFN transmission, for instance. Accordingly, SFN retransmission can take place on a cell by cell basis without substantially affecting SFN transmissions synchronized among the cells.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: July 2, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Lorenzo Casaccia, Nathan E. Tenny
  • Patent number: 8437347
    Abstract: Methods and apparatus are described for broadcasting content. Encoding the content to be multicast/broadcast into multiple streams, wherein at least one stream provides a base portion of the content, and additional streams provide enhancements to the content. A wireless communication device receives the broadcast and decodes streams in accordance with the reception capabilities of the wireless device. The configuration of the wireless device can be determined based on the wireless device's capability to decode multiple streams. In addition, the configuration of the wireless device can be determined based on a subscriber level of the wireless device.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: May 7, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Lorenzo Casaccia, Francesco Grilli
  • Patent number: 8320922
    Abstract: Systems and techniques are disclosed relating to communications. The systems and techniques include an input device, generating a time period in response to a broadcast channel selection from the input device, generating a request to register the broadcast channel if the time period ends before receiving a second broadcast channel selection, and transmitting the request to an access network. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: November 27, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Baaziz Achour, Lorenzo Casaccia, Ragulan Sinnarajah
  • Patent number: 8289920
    Abstract: Systems and methods for switching among networks (e.g., heterogeneous) and inter-working between a source access system and a target access system, by implementing tunneling from the AT to the target access system via the source access system. An inter-system handoff control component can facilitate setting tunneling by the mobile unit to the target access and/or between the source access system and the target access system—wherein signaling/packeting associated with the target system can be transferred over the source system.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: October 16, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Jun Wang, Edward G. Tiedemann, Jr., John Wallace Nasielski, Kalle I. Ahmavaara, Lorenzo Casaccia, Peerapol Tinnakornsrisuphap
  • Patent number: 8285281
    Abstract: Systems and methods that enable a network to configure its neighbor relation (e.g., automatically) by commanding each user equipment (UE) to scan its respective area for neighbor base stations on a predetermined frequency or radio access technology. Moreover, the network can compile lists (e.g., whitelists that identify base stations associated with the network, and black lists that indicate base stations associated with foreign networks) and advise the UEs accordingly (e.g., regarding possibilities for availability of base stations.) The network can therefore configure its neighbor relations automatically and with a higher precision as compared to manual configurations.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: October 9, 2012
    Assignee: Qualcomm Incorporated
    Inventors: Oronzo Flore, Lorenzo Casaccia, Mungal Singh Dhanda
  • Publication number: 20120218922
    Abstract: Certain aspects of the present disclosure propose techniques for independently signaling features supported by a user equipment (UE) in different duplexing modes. The UE may be capable of communicating in frequency division duplexing (FDD) and time division duplexing (TDD) modes. The UE may obtain a FDD-specific feature group indicators (FGIs) set and a TDD-specific FGIs set, and signal at least one of the FDD-specific FGIs set or TDD-specific FGIs set. In addition, the UE may take one or more actions to reduce the likelihood of transitioning to a mode of operation that is different from its current mode of operation.
    Type: Application
    Filed: February 27, 2012
    Publication date: August 30, 2012
    Applicant: QUALCOMM Incorporated
    Inventors: Thomas Klingenbrunn, Lorenzo Casaccia, Bhupesh Manoharlal Umatt, Pradeep Sagane Gowda, Daniel Amerga, Shyamal Ramachandran, Muralidharan Murugan, Swaminathan Sureshchandran, Dinesh Dharmaraju, Sudhir S. Halbhavi, Vitaly Drapkin, Raghu Narayan Challa
  • Patent number: 8228935
    Abstract: Systems, methodologies, and devices are described that enable communication devices, such as mobile devices, to efficiently connect and communicate with public data networks (PDNs) even if overlapping Internet protocol address spaces exist in the PDNs. The subject innovation can employ virtual home agents (v-HAs) that can respectively serve PDNs. To facilitate connection of a mobile device to a desired PDN, a message, including an identifier relating to the desired PDN, can be transmitted to a v-HA and it can be discovered whether that v-HA serves the desired PDN; if so, the v-HA transmits the message to a “home” home agent (h-HA) associated with the desired PDN; and if not, the v-HA can transmit a switch message indicating the correct v-HA to which the message should be sent. Concatenation of communication tunnels associated with the correct v-HA and h-HA facilitate efficient communication associated with the mobile device and desired PDN.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: July 24, 2012
    Assignee: Qualcomm Incorporated
    Inventors: George Tsirtsis (Georgios), Gerardo Giaretta, Lorenzo Casaccia, Kalle I. Ahmavaara
  • Patent number: 8208388
    Abstract: Method for segmented message transmission wherein each message is first divided into segments and the segments are fragmented. A segment parameter is applied to each segment, and a segment identifier to each fragment. The fragments are provided to a lower level for preparation into frames for transmission. One embodiment is applied to the transmission of short duration messages, such as control messages. A timer is used to detect an erasure within a plurality of transmission frames, wherein the timer uses an average inter-arrival time period between transmitted frames to determine a missing frame. In one embodiment, the time period is given as ?*AIT, wherein ? is a constant value, and AIT is the average inter-arrival time of frames.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: June 26, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Lorenzo Casaccia, Ragulan Sinnarajah
  • Patent number: 8208925
    Abstract: An inter-system handover system for a wireless communication system supports hand-down and hand-up of user equipment (UE) to different radio access technologies, including synchronous and asynchronous systems. Latency and handover connection failures are reduced by an access node (nodeB) broadcasting information about neighboring systems (targets) when the UE reception (RX) capability is both inside or outside the reception range of the target. A single RX chain is sufficient, although transitioning between a wireless wide area network (WWAN) to a wireless local area network may (WLAN) may advantageously benefit from simultaneous operation on two Rx chains. Optimized list of neighboring RAT systems (targets) are broadcast from the network, including measurement parameters and reporting instructions. Thereby, UE-driven reporting minimizes latencies. UE reports other-system searches to network only if needed for a handover.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: June 26, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Rashid Ahmed Akbar Attar, Durga Prasad Malladi, Francesco Grilli, Kirti Gupta, Lorenzo Casaccia, Nathan Edward Tenny, Oronzo Flore
  • Patent number: 8169953
    Abstract: A Global System for Mobile Communications (GSM) network supports multi-carrier operation on the downlink and/or uplink for a mobile station. The mobile station receives an assignment of multiple carriers for a first link in the GSM network, receives an assignment of at least one carrier for a second link in the GSM network, and exchanges data with the GSM network via the multiple carriers for the first link and the at least one carrier for the second link. The first link may be the downlink and the second link may be the uplink, or vice versa. The mobile station may receive data on multiple carriers at the same time for multi-carrier operation on the downlink. The mobile station may transmit data on multiple carriers at the same time for multi-carrier operation on the uplink.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: May 1, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Aleksandar Damnjanovic, Lorenzo Casaccia