Patents by Inventor Ulises Olvera-Hernandez

Ulises Olvera-Hernandez 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).

  • METHOD AND APPARATUS FOR MANAGING SERVICE CONTINUITY
    Publication number: 20130003698
    Abstract: Methods and apparatus are disclosed that determine whether service continuity is allowed in a target cell for a wireless transmit/receive unit (WTRU) connected to a source local gateway (LGW) via a local internet protocol access (LIPA) Packet Data Network (PDN) connection. The existence of a connection between the source LGW and a target LGW is also determined. Whether the WTRU user settings allow service continuity is determined. On a condition that service continuity is not allowed for the target LGW or for the WTRU, the LIPA PDN connection is deactivated. On a condition that service continuity is allowed for the target network and for the WTRU, the LIPA PDN connection is maintained. Methods for handling handover, paging and emergency calls are also described herein.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 3, 2013
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Ulises Olvera-Hernandez, Mahmoud Watfa, Saad Ahmad
  • Method and apparatus for canceling a circuit switched fallback
    Patent number: 8340023
    Abstract: A method and apparatus may be used to cancel a communication session. The apparatus may transmit a first message to initiate a communication session and then transmit a second message that indicates a request to cancel the communication session. If the apparatus determines that there is an ongoing Packet Switched (PS) session, the apparatus may continue the ongoing PS session on a current Radio Access Technology (RAT) without performing an intersystem change. If the apparatus receives a handover (HO) command, the apparatus may transmit a message to reject the HO command, or it may ignore the HO command.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: December 25, 2012
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Mahmoud Watfa, Ulises Olvera-Hernandez, Behrouz Aghili, Shankar Somasundaram
  • Efficient media independent handover protocol operation enhancements
    Patent number: 8331313
    Abstract: The present invention modifies existing media independent handover (MIH) function (MIHF) frame format as defined by the IEEE 802.21 standard. In one embodiment, the variable load of the MIHF frame is modified to eliminate the MIHF variable header by defining the MIHF identification (ID) field and the session ID field as fixed fields in the MIHF fixed header. Thus, the MIHF variable load is only made up of the MIHF payload. In another embodiment, a field such as an information element (IE), a header, or MIH service data such as a command or an event, is represented by a type field, a length field and a value field (TLV). The length of the value field is exactly 128 octets, and the length field only occupies one octet.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: December 11, 2012
    Assignee: InterDigital Technology Corporation
    Inventors: Mahmoud Watfa, Ulises Olvera-Hernandez, Shamim Akbar Rahman
  • Method and apparatus for performing a handover in an evolved universal terrestrial radio access network
    Patent number: 8331326
    Abstract: A method and an apparatus for performing a handover in an evolved universal terrestrial radio access network (E-UTRAN) are disclosed. A wireless transmit/receive unit (WTRU) sends a measurement report to a source evolved Node B (eNB), and receives a handover command from the source eNB. The WTRU initiates reception and processing of a primary broadcast channel (P-BCH) at the target cell after receiving the handover command. The WTRU then sends a random access preamble to the target eNB, receives a random access response from the target eNB, and sends a handover complete message to the target eNB. The reception and processing of the P-BCH may be initiated immediately after receiving the handover command or after sending the handover complete message. The WTRU may apply default configuration or source cell configuration in the target cell until a target cell SFN and/or P-BCH information are acquired.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: December 11, 2012
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Peter S. Wang, Guodong Zhang, Jin Wang, Mohammed Sammour, Shankar Somasundaram, Stephen E. Terry, Ulises Olvera-Hernandez
  • METHOD AND APPARATUS FOR USING CONTROL PLANE TO TRANSMIT AND RECEIVE DATA
    Publication number: 20120294236
    Abstract: Methods and apparatus are described for transmitting and receiving data by a wireless transmit/receive unit (WTRU) over the control plane. The methods may receive data without the use of an Internet Protocol (IP) address. In an example method, a WTRU may enter an evolved packet system (EPS) mobility management (EMM)-registered control plane only (CPO) state after receiving an attach accepted message for CPO operation, and enter an EMM-deregistered state after receiving a detach message, a tracking area update (TAU) reject message or an attach reject message. In another method, a WTRU may switch between operational modes that use an IP address and a user plane to transmit and receive data, and the CPO mode.
    Type: Application
    Filed: May 4, 2012
    Publication date: November 22, 2012
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Mahmoud Watfa, Ulises Olvera-Hernandez, Pascal M. Adjakple, Kai Liu, Peter S. Wang, Saad Ahmad, Behrouz Aghili
  • METHOD AND APPARATUS FOR IDENTIFYING MOBILE NETWORK PROTOCOL CAPABILITIES
    Publication number: 20120287906
    Abstract: A method and apparatus for improving handover in an IEEE 802.21 compliant communication network. A query is transmitted from a wireless transmit/receive unit (WTRU) to a media independent handover (MIH) server (MIHS). The WTRU includes a target point of attachment (PoA) and/or a preferred mobile inter protocol (MIP) method. The WTRU receives a response from the MIHS indicating the MIP method supported by the target PoA. Based on the received response, the WTRU may make an informed decision regarding handover.
    Type: Application
    Filed: July 24, 2012
    Publication date: November 15, 2012
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Ulises Olvera-Hernandez, Alan G. Carlton, Juan Carlos Zuniga
  • Cell selection and reselection for closed subscriber group cells
    Patent number: 8310946
    Abstract: A method for applying a priority of a closed subscriber group (CSG) cell, including receiving priority information for each of a plurality of communication frequencies over which the CSG cell can communicate; storing the priority information at a wireless transmit/receive unit; and applying the priority information to at least one of: taking measurements on a communication frequency, selecting to a CSG cell in the communication frequency, or reselecting to a CSG cell in the communication frequency.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: November 13, 2012
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Shankar Somasundaram, Peter S. Wang, Ulises Olvera-Hernandez, Rajat P. Mukherjee
  • METHOD AND APPARATUS FOR CONTROLLING CONNECTIVITY TO A NETWORK
    Publication number: 20120281566
    Abstract: Method and apparatus for controlling connectivity to a network for intermittent data services are disclosed. A new dormant mode is defined such that a wireless transmit/receive unit (WTRU) may transition from a connected state or an idle state to the dormant mode based on triggering conditions. The WTRU may transition from a connected state or an idle state to a dormant mode if the characteristic or the priority of the data matches a characteristics or a priority for the dormant mode and operate using configuration which is different from configuration used for the connected state or the idle state. The WTRU in the dormant mode may perform a WTRU-controlled mobility procedure. The WTRU in the dormant mode may maintain a dedicated resource, such as a cell radio network temporary identity (C-RNTI), for receiving a unicast traffic from the network.
    Type: Application
    Filed: March 30, 2012
    Publication date: November 8, 2012
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Ghyslain Pelletier, Ulises Olvera-Hernandez, Mahmoud Watfa, Saad Ahmad
  • METHOD AND APPARATUS FOR COMMUNICATING SHORT MESSAGE SERVICE AND SUPPLEMENTARY SERVICES MESSAGES
    Publication number: 20120282939
    Abstract: Methods and apparatus for enabling short message service (SMS) and supplementary services (SS) in a long term evolution (LTE) network via evolved packet system (EPS) mobility management (EMM) over the LTE control plane are described. In one embodiment, the radio resource control (RRC) connection signaling radio bearer (SRB) is used for SMS and SS transport over the LTE control plane between a wireless transmit/receive unit (WTRU) and a mobility management entity (MME). EMM interfaces and primitives are defined for actions towards SMS and SS entities for enabling SMS and SS services in LTE via the LTE control plane media. Message formats for SMS and SS message transport are also disclosed for sending SMS and SS messages within EMM uplink (UL) non-access stratum (NAS) transport and downlink (DL) NAS transport messages.
    Type: Application
    Filed: July 16, 2012
    Publication date: November 8, 2012
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Behrouz Aghili, Peter S. Wang, Ulises Olvera-Hernandez, Shankar Somasundaram
  • METHOD AND APPARATUS FOR NON-VOICE EMERGENCY SERVICES
    Publication number: 20120276865
    Abstract: A method and apparatus for performing non-voice emergency services (NOVES) between a wireless transmit/receive unit (WTRU) and a public safety answering point (PSAP) is disclosed. A NOVES session may be initiated by sending a NOVES initiation request message that includes information relating to the NOVES capabilities of the WTRU, and information relating to an emergency situation. The information relating to the NOVES capabilities of the WTRU may include an indication of whether the WTRU supports a fake power-off mode, or whether the WTRU supports PSAP control. Other methods are disclosed that include a method for a PSAP combining a multiple NOVES sessions, and a method for handing over a NOVES session having multiple media streams.
    Type: Application
    Filed: April 27, 2012
    Publication date: November 1, 2012
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Peter S. Wang, Kai Liu, Pascal M. Adjakple, Saad Ahmad, Ulises Olvera-Hernandez, Virgil Comsa, Mahmoud Watfa
  • CELL RESELECTION PROCESS FOR WIRELESS COMMUNICATIONS
    Publication number: 20120275371
    Abstract: A method of cell reselection in a wireless communications system where parameters are transmitted by the network in system information blocks to WTRU's on the network. Parameters are either added or subtracted from an equation representing the signal level and/or quality of a cell. Parameters may be prioritized. The results of the calculations are used to rank the servicing cell and neighboring cells. If a neighboring cell has a higher quality than the servicing cell, then the WTRU reselects the better cell. The network may transmit a blacklist of cells where the WTRU cannot camp as well as a barring timer for each cell where if the timer expires, the cell can again be considered for reselection. Information germane to the reselection decision may be transmitted and used by the network.
    Type: Application
    Filed: July 6, 2012
    Publication date: November 1, 2012
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Shankar Somasundaram, Mohammed Sammour, Ulises Olvera-Hernandez
  • METHOD AND APPARATUS FOR CONTROLLING THE APPLICATION OF SELECTED IP TRAFFIC OFFLOAD AND LOCAL IP ACCESS
    Publication number: 20120275310
    Abstract: A method and apparatus are described for controlling the application of Selected Internet Protocol (IP) traffic offload (SIPTO) or Local IP Access (LIPA) services for a wireless transmit/receive unit (WTRU). The SIPTO and LIPA services may be performed over packet data network (PDN) connections. A user of the WTRU may be prompted to accept or reject the usage of the SIPTO or LIPA services. The user of the WTRU may request switching from SIPTO or LIPA services to non-SIPTO or non-LIPA services.
    Type: Application
    Filed: April 4, 2012
    Publication date: November 1, 2012
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Mahmoud Watfa, Pascal M. Adjakple, Kai Liu, Saad Ahmad, Ulises Olvera-Hernandez, Peter S. Wang
  • Switching multiple link layer resources for media independent handover
    Patent number: 8274946
    Abstract: A method for controlling behavior of lower layer links related to media independent handover (MIH) of a mobile user comprises sending a MIH link actions request primitive from a MIH User entity to a MIH function (MIHF) for requesting actions to be executed on a set of lower layer links to heterogeneous radio access technology (RAT) networks. The primitive includes parameters that indicate the requested actions and an execution time delay. Confirmation primitives are sent back the MIH User entity to convey the results of the execution attempts on the requested actions.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: September 25, 2012
    Assignee: InterDigital Technology Corporation
    Inventors: Ulises Olvera-Hernandez, Khalid S. Hossain, Shamim Akbar Rahman, Mahmoud Watfa, Juan Carlos Zuniga
  • HANDLING OF LOW PRIORITY DEVICES
    Publication number: 20120218889
    Abstract: Methods, apparatus and systems for managing or handling a wireless transmit/receive unit (WTRU) are disclosed. One method includes combined registering the WTRU for a circuit switched (CS) service and a packet switched (PS) service; and the WTRU performing an independent location area update procedure to a mobile switching center (MSC)/visitor location register (VLR) responsive to: (1) the WTRU moving from a first routing area to a second routing area and (2) the WTRU running a back-off timer.
    Type: Application
    Filed: February 22, 2012
    Publication date: August 30, 2012
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Mahmoud WATFA, Pascal M. ADJAKPLE, Ulises OLVERA-HERNANDEZ, Peter S. WANG, Kai LIU, Behrouz AGHILI
  • METHOD AND SYSTEM FOR STATION LOCATION BASED NEIGHBOR DETERMINATION AND HANDOVER PROBABILITY ESTIMATION
    Publication number: 20120213201
    Abstract: The present invention is a method and system for station location based neighbor determination and handover probability estimation. A serving access point determines the location and movement measurements of a station (STA). Neighboring access points report coordinates of cell fringes of the neighboring access points. The STA sends a request for system information to the current access point along with current location of the STA. The current access point provides the system information, and the STA utilizes the system information to determine best handover candidate from among neighboring access points and an estimate of the time for handover.
    Type: Application
    Filed: May 3, 2012
    Publication date: August 23, 2012
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Ulises Olvera-Hernandez, Alan Gerald Carlton
  • Coordinated uplink transmission in LTE DRX operations for a wireless transmit receive unit
    Patent number: 8249004
    Abstract: A method and apparatus for discontinuous reception (DRX) operation in a wireless transmit receive unit aligns uplink and downlink transmissions with a DRX cycle. The transmission may be a channel quality indicator report, a sounding reference signal, or a silence descriptor among other downlink and uplink transmissions.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: August 21, 2012
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Jin Wang, Guodong Zhang, Ulises Olvera-Hernandez
  • Method and system for media independent handover using operation, administration and maintenance protocol
    Patent number: 8249015
    Abstract: A method and system for media independent handover (MIH) using an Ethernet operation, administration and maintenance (OAM) protocol are disclosed. Link connectivity between a user equipment (UE) and an MIH point of service (PoS) is monitored by using an OAM protocol. An OAM trigger indicating a link status is mapped to an MIH event and the MIH event is reported for potential handover. The OAM protocol may be IEEE 802.3ah or 802.1ag.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: August 21, 2012
    Assignee: InterDigital Technology Corporation
    Inventors: Samian Kaur, Ulises Olvera-Hernandez
  • Method and apparatus for identifying mobile network protocol capabilities
    Patent number: 8238261
    Abstract: A method and apparatus for improving handover in an IEEE 802.21 compliant communication network. A query is transmitted from a wireless transmit/receive unit (WTRU) to a media independent handover (MIH) server (MIHS). The WTRU includes a target point of attachment (PoA) and/or a preferred mobile inter protocol (MIP) method. The WTRU receives a response from the MIHS indicating the MIP method supported by the target PoA. Based on the received response, the WTRU may make an informed decision regarding handover.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: August 7, 2012
    Assignee: InterDigital Technology Corporation
    Inventors: Ulises Olvera-Hernandez, Alan G. Carlton, Juan Carlos Zuniga
  • Wireless communication method and device for implementing media independent handover between technologically diversified access networks
    Patent number: 8233455
    Abstract: A wireless communication method and device may be used to perform a media independent handover between technologically diversified access networks. A wireless transmit/receive unit (WTRU) may be configured to communicate with a plurality of technologically diversified access networks, such as Institute of Electrical and Electronics Engineers (IEEE) 802.X networks and Third Generation Partnership Project (3GPP) networks. The WTRU may include a plurality of access network specific protocol stacks and a media independent handover (MIH) function. The WTRU may be configured to communicate information with each of the plurality of access network specific protocol stacks using protocols specific to each to the plurality of access network protocol stacks.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: July 31, 2012
    Assignee: InterDigital Communications Corporation
    Inventors: Kamel M Shaheen, Alan G Carlton, Marian Rudolf, Guang Lu, Juan Carlos Zuniga, Ulises Olvera-Hernandez, Maged M Zaki
  • METHOD AND APPARATUS FOR DATA SECURITY AND AUTOMATIC REPEAT REQUEST IMPLEMENTATION IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20120185743
    Abstract: A method and apparatus for implementing data security and automatic repeat request (ARQ) in a wireless communication system are disclosed. Cipher entities are included in a wireless transmit/receive unit (WTRU) and an access gateway (aGW), and outer ARQ, (or radio link control (RLC)), entities are included in the WTRU and an evolved Node-B (eNode-B). Each cipher entity is located on top of an outer ARQ entity. The cipher entities cipher and decipher a data block by using a generic sequence number (SN) assigned to the data block. The outer ARQ entities may segment the ciphered data block to multiple packet data units (PDUs), may concatenate multiple ciphered data blocks to a PDU, or may generate one PDU from one data block. The outer ARQ entities may segment or re-segment the PDU when a transmission failure occurs.
    Type: Application
    Filed: March 27, 2012
    Publication date: July 19, 2012
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Peter Shaomin Wang, Stephen E. Terry, Ulises Olvera-Hernandez