Patents by Inventor Saad Ahmad

Saad Ahmad 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: 9860939
    Abstract: Systems, methods, and instrumentalities are disclosed that may provide assistance across networks using different radio access technologies. A centralized gateway CGW (210, 710) may be provided to facilitate the assistance via client devices in the networks (220). The CGW (210, 710) and client devices may use a common protocol (311) and common interface to take actions relating to the assistance (780).
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: January 2, 2018
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Rocco Di Girolamo, Jean-Louis Gauvreau, Zinan Lin, Joseph M. Murray, Athmane Touag, Saad Ahmad, Martino Freda
  • Publication number: 20170374611
    Abstract: A method and apparatus are described for supporting a two-stage device-to-device (D2D) discovery using a D2D interworking function (IWF). A D2D IWF component may be configured to perform mapping between an application running on an application server and a third generation partnership project (3GPP) network, and provide a set of application programming interfaces (APIs) to allow discovery to be provided as a service to D2D applications. An application identifier may be mapped to a 3GPP identifier. Further, a method and apparatus are described for performing client-server discovery. A first wireless transmit/receive unit (WTRU) may be configured for a listen-only operation, and a second WTRU may be configured to transmit beacons. The first and second WTRUs may perform a radio access network (RAN) discovery procedure at an access stratum (AS) layer. A method and apparatus for performing charging for D2D service using a D2D IWF are also described.
    Type: Application
    Filed: September 11, 2017
    Publication date: December 28, 2017
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Ravikumar V. Pragada, Saad Ahmad, Balaji Raghothaman, Samian J. Kaur, Pascal M. Adjakple, Ulises Olvera-Hernandez, Zhuorong Deng, Kiran K. Vanganuru, Gregory S. Sternberg, Guanzhou Wang, Michael F. Starsinic, Alexander Reznik, Juan Carlos Zuniga, Eldad M. Zeira
  • Patent number: 9839045
    Abstract: Described herein is a silent period method and apparatus for dynamic spectrum management. The methods include configuration and coordination of silent periods across an aggregated channel in a wireless communication system. A silent period management entity (SPME) dynamically determines silent period schedules for channels based on system and device information and assigns a silent period duration and periodicity for each silent period. The SPME may reconfigure the silent period schedule based on system delay, system throughput, channel quality or channel management events. A silent period interpretation entity (SPIE) receives and implements the silent period schedule. The silent periods for the channels may be synchronized, independent, or set-synchronized.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: December 5, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Martino M. Freda, Liangping Ma, Saad Ahmad, Jean-Louis Gauvreau, Alpaslan Demir, Chunxuan Ye
  • Publication number: 20170337394
    Abstract: Location and other status information may be communicated between Proximity Service (ProSe) users. A ProSe function may retrieve a ProSe WTRU's location data from SLP and provide it to a monitoring WTRU via a ProSe discovery procedure or EPC-level ProSe discovery procedure. A ProSe function may retrieve a ProSe WTRU's location data from a ProSe WTRU and provide it to monitoring WTRUs via a ProSe discovery procedure. A ProSe WTRU may broadcast its location and/or other status information in a discovery message. A ProSe function may encrypt the location and/or other status information for encryption before broadcast. A ProSe WTRU may send its location and/or other status information via a user plane to another ProSe WTRU or ProSe group. A ProSe function may verify whether a WTRU is permitted to disclose and/or process information (e.g., location information) and may indicate to a WTRU whether to disclose information, e.g., before the information is disclosed, and/or whether to process the information.
    Type: Application
    Filed: October 2, 2015
    Publication date: November 23, 2017
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Guanzhou Wang, Loic Canonne-Velasquez, Saad Ahmad, Mahmoud Watfa, Dimitrios Karampatsis
  • Publication number: 20170332272
    Abstract: A method and apparatus for multiple radio access technology (multi-RAT) access mode operation for a wireless transmit/receive unit (WTRU) are disclosed. A WTRU and a network may enable a multi-RAT access mode of operation based on at least one of WTRU subscription, a service agreement of the WTRU, a roaming status of the WTRU, a selected access point name (APN), an Internet protocol (IP) flow class, a subscriber profile identity for the WTRU, requested quality of service, or a proximity indication indicating proximity to a cell supporting multi-RAT access mode. The WTRU may send a capability indication of support of multi-RAT access to a network, wherein the multi-RAT access mode is enabled based on the capability indication. A partial handover of bearers may be performed. In performing the handover, the target cell is determined based on a priority rule.
    Type: Application
    Filed: July 13, 2017
    Publication date: November 16, 2017
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Pascal M. Adjakple, Ulises Olvera-Hernandez, Peter S. Wang, Kai Liu, Saad Ahmad
  • Patent number: 9813842
    Abstract: Methods, apparatus, systems, devices, and computer program products directed to enhancements to proximity-based services (ProSe) direct discovery are provided. Among the methods is a method that may be implemented in a proximity services (ProSe) function and that may include receiving a discovery request message including a ProSe application identifier; determining whether or not the ProSe function can retrieve a valid ProSe application code corresponding to the ProSe application identifier; and transmitting a reject-type discovery response message conditioned on the determining that a valid ProSe application code is not available to the ProSe function.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: November 7, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Saad Ahmad, Amir Helmy, Guanzhou Wang, Loic Canonne-Velasquez, Ulises Olvera-Hernandez, Mahmoud Watfa
  • Publication number: 20170303322
    Abstract: Methods and devices are described for communication using proximity services (ProSe). An aggregate maximum bit rate parameter (AMBR) may limit a data rate that may be transmitted by one or more ProSe bearers. A wireless transmit-receive unit (WTRU) may request authorization from the network prior to establishing a ProSe bearer specifying a required quality of service (QoS) or other requirements. Each ProSe bearer may have a corresponding EPS bearer to support service continuity. Packets may be evaluated by a WTRU first using a ProSe check to determine if the packet is destined for a ProSe bearer and then using a packet filter or filters in order of precedence. Embodiments may include methods of initiation communication after discovery. Embodiments may include methods of maintaining session continuity when traffic is switched between an evolved packet system (EPS) bearer and a ProSe bearer.
    Type: Application
    Filed: October 2, 2015
    Publication date: October 19, 2017
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Mahmoud Watfa, Guanzhou Wang, Saad Ahmad, Amir Helmy, Loic Canonne-Velasquez, Dimitrios Karampatsis, Samian Kaur, Ulises Olvera-Hernandez
  • Publication number: 20170303228
    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: June 19, 2017
    Publication date: October 19, 2017
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Mahmoud Watfa, Ulises Olvera-Hernandez, Pascal M. Adjakple, Kai Liu, Peter S. Wang, Saad Ahmad, Behrouz Aghili
  • Publication number: 20170289866
    Abstract: Methods, apparatus, and systems are disclosed for handover of a Wireless Transmitter/Receiver Unit (WTRU) moving between a local network and another network. The WTRU established a local IP access (LIPA) session in the local network via a first Access Point (AP). The method includes receiving, by a second AP in the other network, a request to connect to the other network; and transitioning the LIPA session in the local IP network to a managed remote access (MRA) session in the other network. The transitioning includes establishing a path between the first AP and the second AP via a gateway, and informing the gateway of the transition to the MRA session.
    Type: Application
    Filed: June 22, 2017
    Publication date: October 5, 2017
    Inventors: Mahmoud Watfa, Saad Ahmad, Pascal M. Adjakple, Ulises Olvera-Hernandez, Behrouz Aghili
  • Publication number: 20170290066
    Abstract: A method, device, and system for a reporting process. A home monitoring device may be equipped with a camera or some type of sensor. The home monitoring device may generate data based on input from the camera or sensor. A reporting device may receive the data from a home monitoring device. The reporting device may assess this information to determine if an event has occurred. The reporting device may send a message including the data based on the determination. The reporting device may establish a multiway communication between the home monitoring device, the user interface, and the reporting device.
    Type: Application
    Filed: June 19, 2017
    Publication date: October 5, 2017
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Peter S. Wang, Kai Liu, Pascal M. Adjakple, Saad Ahmad, Ulises Olvera-Hernandez, Virgil Comsa, Mahmoud Watfa
  • Patent number: 9781761
    Abstract: A method and apparatus for multiple radio access technology (multi-RAT) access mode operation for a wireless transmit/receive unit (WTRU) are disclosed. A WTRU and a network may enable a multi-RAT access mode of operation based on at least one of WTRU subscription, a service agreement of the WTRU, a roaming status of the WTRU, a selected access point name (APN), an Internet protocol (IP) flow class, a subscriber profile identity for the WTRU, requested quality of service, or a proximity indication indicating proximity to a cell supporting multi-RAT access mode. The WTRU may send a capability indication of support of multi-RAT access to a network, wherein the multi-RAT access mode is enabled based on the capability indication. A partial handover of bearers may be performed. In performing the handover, the target cell is determined based on a priority rule.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: October 3, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Pascal M. Adjakple, Ulises Olvera-Hernandez, Peter S. Wang, Kai Liu, Saad Ahmad
  • Publication number: 20170280465
    Abstract: Systems and methods for dynamic white space management are described. First, local handling of channel queries, in which a channel query by a white space device (WSD) is handled by a local dynamic spectrum management (DSM) server, if the DSM server has all the information necessary for providing a response to the channel query. Second, a search extension, in which a WSDB passes part of a search for available channels to a local DSM server. Third, assisting of an available channel calculation, in which a DSM server provides spectrum sensing information to WSDBs to improve the available channel calculation within the WSDBs. And fourth, dynamic bandwidth management to meet the coexistence requirements. In addition, the content of the messages and procedures that enable the above value-adding functions and interactions with the WSDB systems are described.
    Type: Application
    Filed: June 13, 2017
    Publication date: September 28, 2017
    Inventors: Saad Ahmad, Jean-Louis Gauvreau, Rocco Di Girolamo, Alexander Reznik, Liangping Ma, Chunxuan Ye, Alpaslan Demir, Angelo A. Cuffaro
  • Patent number: 9763179
    Abstract: A method and apparatus are described for supporting a two-stage device-to-device (D2D) discovery using a D2D interworking function (IWF). A D2D IWF component may be configured to perform mapping between an application running on an application server and a third generation partnership project (3GPP) network, and provide a set of application programming interfaces (APIs) to allow discovery to be provided as a service to D2D applications. An application identifier may be mapped to a 3GPP identifier. Further, a method and apparatus are described for performing client-server discovery. A first wireless transmit/receive unit (WTRU) may be configured for a listen-only operation, and a second WTRU may be configured to transmit beacons. The first and second WTRUs may perform a radio access network (RAN) discovery procedure at an access stratum (AS) layer. A method and apparatus for performing charging for D2D service using a D2D IWF are also described.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: September 12, 2017
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Ravikumar V. Pragada, Saad Ahmad, Balaji Raghothaman, Samian J. Kaur, Pascal M. Adjakple, Ulises Olvera-Hernandez, Zhuorong Deng, Kiran K. Vanganuru, Gregory S. Sternberg, Guanzhou Wang, Michael F. Starsinic, Alexander Reznik, Juan Carlos Zuniga, Eldad M. Zeira
  • Publication number: 20170257886
    Abstract: Systems, methods, and instrumentalities are disclosed such that a network (e.g., a radio access network, RAN, node) may provide a wireless transmit/receive unit (WTRU) with a service-based network access for a new service. The RAN node may comprise a receiver, a transmitter, and a processor operatively coupled to the receiver and the transmitter. The receiver may be configured to receive a request message from the WTRU. The request message may indicate service-based network access information. The processor may be configured to select a service node belonging to a core network based on information in the request message. The transmitter may be configured to send a response message to the WTRU. The response message may indicate accepted service-based network access information, wherein the accepted service-based network access information is associated with at least one public land mobile network (PLMN) identifier (ID).
    Type: Application
    Filed: May 22, 2017
    Publication date: September 7, 2017
    Inventors: Pascal M Adjakple, Peter S Wang, Kai Liu, Ulises Olvera-Hernandez, Saad Ahmad, Shamim Akbar Rahman
  • Publication number: 20170257843
    Abstract: A method and apparatus for machine type communication (MTC) authentication and triggering may be performed by an MTC interworking function (MTC-IWF). On a condition an Internet protocol (IP) connection does not exist between a services capability server (SCS) and an MTC device, a device trigger message may be received by the MTC device over a Tsp interface. The device trigger message may include a cryptographic key and may have an associated level of urgency. The method may further comprise determining a level of network congestion and transmitting the device trigger, including the received cryptographic key, to the MTC device in accordance with the associated level of urgency. A report may be sent to the SCS, associated with the determined level of network congestion, to indicate either success or failure of the device triggering procedure. The received cryptographic key may be used to secure an IP connection.
    Type: Application
    Filed: May 22, 2017
    Publication date: September 7, 2017
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Peter S. Wang, Ulises Olvera-Hernandez, Behrouz Aghili, Pascal M. Adjakple, Kai Liu, Mahmoud Watfa, Saad Ahmad, Samian Kaur, Guanzhou Wang
  • Publication number: 20170231029
    Abstract: Method and apparatus for providing information to a network are disclosed. An eNodeB (eNB) may receive pattern information relating to connection state management behavior of a wireless transmit/receive unit (WTRU). The eNB may receive this information over S1 signaling when a connection is established. The eNB may determine a time factor for connection state management, wherein the time factor may be based on the received information. The determine time factor may be used to adjust connection states of the WTRU.
    Type: Application
    Filed: April 27, 2017
    Publication date: August 10, 2017
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Ghyslain Pelletier, Ulises Olvera-Hernandez, Mahmoud Watfa, Saad Ahmad
  • Patent number: 9713039
    Abstract: Methods, apparatus, and systems are disclosed for handover of a Wireless Transmitter/Receiver Unit (WTRU) moving between a local network and another network. The WTRU established a local IP access (LIPA) session in the local network via a first Access Point (AP). The method includes receiving, by a second AP in the other network, a request to connect to the other network; and transitioning the LIPA session in the local IP network to a managed remote access (MRA) session in the other network. The transitioning includes establishing a path between the first AP and the second AP via a gateway, and informing the gateway of the transition to the MRA session.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: July 18, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Mahmoud Watfa, Saad Ahmad, Pascal M Adjakple, Ulises Olvera-Hernandez, Behrouz Aghili
  • Publication number: 20170202038
    Abstract: Methods and apparatus are described for implementing a wireless local area network (WLAN) Proximity Service (ProSe) connection in a WLAN ProSe capable wireless transmit receive unit (WTRU). The WLAN ProSe capable WTRU requests an establishment of a WLAN ProSe connection with other WLAN ProSe capable WTRU(s), where a ProSe discovery process determines the presence of other WLAN ProSe capable WTRU(s). Configuration information is received, via a non-access stratum or a radio resource control message, from a network node to facilitate the WLAN ProSe connection to the other WLAN ProSe capable WTRU(s). The configuration information includes one of a WLAN ID of the other WLAN ProSe capable WTRU(s), a medium access control ID of the other WLAN ProSe capable WTRU(s), a WLAN access point Service Set Identification (SSID) or Basic SSID, a frequency or channel number, a beacon interval, and timing information.
    Type: Application
    Filed: January 23, 2017
    Publication date: July 13, 2017
    Applicant: InterDigital Patent Holdings, Inc.
    Inventor: Saad Ahmad
  • Publication number: 20170195822
    Abstract: Procedures, mechanisms, methods, and techniques are provided that trigger power saving mode (PSM) functionality in the at least one wireless transmit receive units, group of WTRUs or subset of the group of WTRUs. The trigger may be in response to an application layer request to set one or more predetermined PSM settings, wherein the trigger originates from one or more application servers (APs) directed to a core network by way of an interface such as an SCEF that may be included on a device (e.g., a gateway, computing device, and/or the like) and may be configured for enabling the application server to request enabling and disabling PSM functionality.
    Type: Application
    Filed: June 26, 2015
    Publication date: July 6, 2017
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Mahmoud Watfa, Guanzhou Wang, Ulises Olvera-Hernandez, Behrouz Aghili, Pascal M. Adjakple, Dimitrios Karampatsis, Saad Ahmad, Amir Helmy
  • Patent number: 9693366
    Abstract: Systems, methods, and instrumentalities are disclosed such that a WTRU may obtain network operator agnostic wireless access for a service. The WTRU may receive a system information (SI) broadcast from a radio access network (RAN) node. The SI broadcast may indicate that an operator of the RAN node supports service-based network access. The WTRU may send a service request to a virtual service provider to request the service. The WTRU may receive a service response from the virtual service provider. The WTRU may receive a service response from the virtual service provider, the service response indicating a mobile network operator (MNO) to use for obtaining the service and subscription information for accessing the MNO, wherein the MNO is different than the operator of the RAN node. The WTRU may access the MNO to obtain the service.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: June 27, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Pascal M. Adjakple, Peter S. Wang, Kai Liu, Ulises Olvera-Hernandez, Saad Ahmad, Shamim Akbar Rahman