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: 8170047
    Abstract: Techniques for transmitting data and training sequence efficiently using new slot and block formats are described. A transmitter processes (e.g., encodes, interleaves, and partitions) a data block to obtain multiple output blocks. For each output block, the transmitter generates multiple bursts having a training sequence that is shared by these bursts. The transmitter sends the multiple bursts for each output block in multiple time slots, e.g., consecutive time slots in one frame. The multiple bursts for each output block may (1) include one or more short training sequences, (2) omit guard periods between adjacent bursts, (3) include a first tail bit field at the start of the first burst and a second tail bit field at the end of the last burst, (4) include at least one stealing flag field, or (5) have any combination of the above.
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: May 1, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Niels Peter Skov Andersen, Lorenzo Casaccia
  • Patent number: 8155020
    Abstract: Techniques for supporting policy control and charging (PCC) functions in a wireless communication network are described. In one design, a Policy Control and Charging Rules Function (PCRF) may receive a request from a first network entity (e.g., a home agent) to establish a PCC session for a user equipment (UE) accessing the first network entity using a mobility protocol (e.g., Mobile IP). The PCRF may determine the mobility protocol used by the UE based on an IP-CAN Type parameter included in the request. The PCRF may determine PCC rules for the PCC session based on the mobility protocol and may send the PCC rules to the first network entity. The first network entity may apply the PCC rules on packets for the PCC session and may count each packet for charging. A second network entity may forward the packets but would not count these packets for charging.
    Type: Grant
    Filed: January 13, 2009
    Date of Patent: April 10, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Gerardo Giaretta, Kalle I. Ahmavaara, Lorenzo Casaccia, George Tsirtsis, Arungundram C. Mahendran
  • Patent number: 8145228
    Abstract: In a communication system (100), a method and apparatus provide for efficient control of call requests from mobile stations (102-104) to base station (101). Mobile station (102-104) receives an initial call request block probability from base station (101), determines an elapsed time from an effective time of the initial call request block probability, and adjusts the initial call request block probability based on an elapsed time. Mobile station (102-104) uses the adjusted initial call request to block call request.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: March 27, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Lorenzo Casaccia, Sai Yiu Duncan Ho, Ragulan Sinnarajah
  • Publication number: 20120069796
    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: Application
    Filed: March 28, 2011
    Publication date: March 22, 2012
    Applicant: QUALCOMM Incorporated
    Inventors: Lorenzo Casaccia, Durga Prasad Malladi
  • Publication number: 20120014268
    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-ARM) 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: Application
    Filed: January 10, 2011
    Publication date: January 19, 2012
    Applicant: QUALCOMM Incorporated
    Inventors: Aleksandar Damnjanovic, Lorenzo Casaccia, Niels Peter Skov Andersen
  • Patent number: 8098818
    Abstract: A method and an apparatus for secure registration for a multicast-broadcast-multimedia system (MBMS) are disclosed. A random number is generated by a broadcast-multicast-service center (BM-SC) and broadcast to user equipment in the coverage area of a radio access network (RAN). A memory module or smart card (UICC) in the user equipment generates a radio access network key (RAK) which is a function of the random number and a key selected from the group consisting of a public land mobile network key (PK) and a broadcast access key (BAK), and then generates a temporary registration key (RGK) as a function of the RAK, a service identification number and a user identification number, for example, P-TMSI, which may be extracted by the RAN to authenticate the registration as legitimate.
    Type: Grant
    Filed: July 7, 2003
    Date of Patent: January 17, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Francesco Grilli, Lorenzo Casaccia, James Semple, Parag A. Agashe
  • Patent number: 8073087
    Abstract: Methods and apparatus are disclosed herein for providing incremental redundancy in a wireless communication system to aid in error recovery. One or more redundancy versions are sent on different carriers than the primary version of information to be transmitted. At the receiver end the redundancy versions may be combined using hard or soft combining techniques, including selection combining, selective soft combining or soft combining.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: December 6, 2011
    Assignee: Qualcomm Incorporated
    Inventors: Lorenzo Casaccia, Durga Prasad Malladi
  • Publication number: 20110256896
    Abstract: Certain aspects of the present disclosure propose methods for identifying machine to machine (M2M) devices and services. Each device may indicate its M2M functionality either for each of the services performed by the device or for all of its services to a core network. The core network may report the M2M functionality of the device to other nodes in the network that may be involved with the M2M functionality of the device.
    Type: Application
    Filed: September 28, 2010
    Publication date: October 20, 2011
    Inventors: Gerardo Giaretta, Josef J. Blanz, Lorenzo Casaccia, John Wallace Nasielski, Haipeng Jin, Krishna S. Pandit, Nathan Edward Tenny
  • Patent number: 8018930
    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 14, 2005
    Date of Patent: September 13, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Lorenzo Casaccia, Durga Prasad Malladi
  • Publication number: 20110211533
    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: Application
    Filed: May 10, 2011
    Publication date: September 1, 2011
    Applicant: QUALCOMM Incorporated
    Inventors: Lorenzo Casaccia, Durga Prasad Malladi
  • Patent number: 8009752
    Abstract: Methods and apparatus are disclosed herein for providing incremental redundancy in a wireless communication system to aid in error recovery. One or more redundancy versions are sent on different carriers than the primary version of information to be transmitted. At the receiver end the redundancy versions may be combined using hard or soft combining techniques, including selection combining, selective soft combining or soft combining.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: August 30, 2011
    Assignee: Qualcomm Incorporated
    Inventors: Lorenzo Casaccia, Durga Prasad Malladi
  • Publication number: 20110140846
    Abstract: An apparatus and method for registration-less paging comprising establishing a mobile device identity for a mobile device in a wireless network; determining a time instance for the identified mobile device to listen to pages; sending a page from the wireless network to the identified mobile device during the determined time instance. In one example, the apparatus and method is for a network-initiated attach procedure comprising receiving a request to attach a mobile device in a wireless network; generating a paging message based on the request to attach the mobile device; sending a paging indicator to a mobile device based on the paging message during a time instance based on an agreed rule; and accepting an attach procedure from the mobile device based on the paging indicator.
    Type: Application
    Filed: December 10, 2010
    Publication date: June 16, 2011
    Applicant: QUALCOMM Incorporated
    Inventors: Josef J. Blanz, Gerardo Giaretta, Haipeng Jin, Serge Willenegger, Nathan E. Tenny, Lorenzo Casaccia, John Wallace Nasielski, Chennagiri Krishna Subramanaya Pandit
  • Patent number: 7957351
    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: March 30, 2006
    Date of Patent: June 7, 2011
    Assignee: Qualcomm Incorporated
    Inventors: Lorenzo Casaccia, Durga Prasad Malladi
  • Patent number: 7881270
    Abstract: In a method and apparatus for providing a flexible network architecture, an apparatus operable in a communication system comprises one or more logical entities adapted to provide a set of functions related to a connection through the communication system, wherein said logical entities are connected in series, and a subset of said functions are provided by each occurrence of said logical entities.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: February 1, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Kalle I. Ahmavaara, Lorenzo Casaccia
  • Publication number: 20110007653
    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: Application
    Filed: September 17, 2010
    Publication date: January 13, 2011
    Applicant: QUALCOMM, Incorporated
    Inventors: Lorenzo Casaccia, Durga Prasad Malladi
  • Patent number: 7869417
    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: July 19, 2006
    Date of Patent: January 11, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Aleksandar Damnjanovic, Lorenzo Casaccia, Niels Peter Skov Andersen
  • Patent number: 7813732
    Abstract: A base station in a wireless communications network counts mobile stations receiving broadcast content via multi-user channel. The base station broadcasts a repeating message identifying at least one broadcast content stream and, for each stream, a REGISTER (R) or DO NOT REGISTER (DNR) indicator. Mobile stations periodically re-examine contents of this message. When the indicator is R for a broadcast content stream, mobile stations whose users have elected to receive it send the base station a registration message for that stream. When the number of registered mobile stations reaches a prescribed number, the base station changes the indicator to DNR. When the indicator is DNR for a broadcast content stream, mobile stations refrain from sending any registration message for that broadcast content stream. The base station may institute a recount by resetting the indicator to R.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: October 12, 2010
    Assignee: Qualcomm Incorporated
    Inventors: Francesco Grilli, Lorenzo Casaccia
  • Publication number: 20100157791
    Abstract: Methods and apparatus are disclosed herein for providing incremental redundancy in a wireless communication system to aid in error recovery. One or more redundancy versions are sent on different carriers than the primary version of information to be transmitted. At the receiver end the redundancy versions may be combined using hard or soft combining techniques, including selection combining, selective soft combining or soft combining.
    Type: Application
    Filed: February 10, 2010
    Publication date: June 24, 2010
    Applicant: QUALCOMM Incorporated
    Inventors: Lorenzo Casaccia, Durga Prasad Malladi
  • Patent number: 7639653
    Abstract: A method and apparatus resolves conflicts and ambiguities of GSM standards arising in DTM by monitoring only selected downlink timeslots for uplink status flags (USFs). Downlink timeslots with a packet data channel (PDCH) are monitored for a USF from a lowest numbered time slot, B(0), to a maximum time slot B(MAX) where B(MAX) is equal to the lowest transmission uplink timeslot, B(x), in the corresponding TDMA uplink frame if the second lowest transmission uplink timeslot B(x)+1, is a circuit switched timeslot and where B(MAX) is equal to the second lowest transmission timeslot in the corresponding TDMA frame, B(x)+1, otherwise.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: December 29, 2009
    Assignee: QUALCOMM Incorporated
    Inventor: Lorenzo Casaccia
  • Publication number: 20090300207
    Abstract: Systems and methodologies are described that facilitate tunneling within wireless communication systems. Flow identification information is dynamically generated for data flows within a communication system. This flow identification information assists in determining appropriate flow specific policies to be applied with respective data flows. The flow identification information along with the flow specific policies can be communicated to an access mechanism which transmits the data flows in accordance with the flow specific policies. Different aspects relate to using source addresses in combination with the flow identification information for identifying different IP flows originating at a plurality of sources. The flow identification information also facilitates in verifying if different flows are transmitted in accordance with appropriate rules. The generated data flows are transmitted with respective flow identification information in order to facilitate the verification process.
    Type: Application
    Filed: June 1, 2009
    Publication date: December 3, 2009
    Applicant: QUALCOMM Incorporated
    Inventors: Gerardo Giaretta, Kalle Ahmavaara, Lorenzo Casaccia, Georgios Tsirtsis