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).
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Publication number: 20250254640Abstract: Methods, apparatus and systems for managing a connection state of a Wireless Transmit/Receive Unit (WTRU) that is in Mobile Initiated Communication Only (MICO) mode are disclosed. One representative method may include the WTRU obtaining information indicating that the WTRU is to initiate registration prior to sending a Service Request (SR). The representative method may further include the WTRU sending a registration request in accordance with the obtained information and sending a SR after registering with a Network Entity.Type: ApplicationFiled: February 6, 2025Publication date: August 7, 2025Inventors: Guanzhou Wang, Saad Ahmad, Behrouz Aghili, Ulises Olvera-Hernandez
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Publication number: 20250254505Abstract: Systems, methods, and instrumentalities are disclosed for priority handling for ProSe Communications. A relay wireless transmit/receive unit (WTRU) may act as a relay between the network and the remote WTRU. The relay WTRU may receive a temporary mobile group identity (TMGI) request message from a remote WTRU. The TMGI request message may include a TMGI, a ProSe per packet priority level associated with the TMGI, etc. The relay WTRU may receive an evolved multimedia broadcast multicast service (eMBMS) data packet from a network. The eMBMS may be associated with the TMGI. The relay WTRU may apply the received ProSe per packet priority level associated with the TMGI to the received eMBMS data packet. The relay WTRU may relay the eMBMS data packet to the remote WTRU based on the ProSe per packet priority level. The relay WTRU may forward the eMBMS data packet to the remote WTRU via a PC5 interface.Type: ApplicationFiled: March 25, 2025Publication date: August 7, 2025Applicant: InterDigital Patent Holdings, Inc.Inventors: Mahmoud Watfa, Guanzhou Wang, Saad Ahmad, Amir Helmy, Ulises Olvera-Hernandez
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Patent number: 12382333Abstract: A method implemented on a UE includes determining an application class of an application, and permitting or barring access by the application to a communication network according to a comparison of the determined application with a rule to provide application class based access control. The application is classified into the determined application class. The application is classified into the determined application class by a home network. The application is classified into the determined application class by a 3GPP layer. The application is classified into the determined application class by a visited network. The visited network classifies the application into a further application class. The rule includes a list of applications for permitting or barring access by the applications according to the comparison of the determined application class with the rule.Type: GrantFiled: September 27, 2022Date of Patent: August 5, 2025Assignee: InterDigital Patent Holdings, Inc.Inventors: Guanzhou Wang, Sudhir Kumar Baghel, Li-Hsiang Sun, Saad Ahmad
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Publication number: 20250247681Abstract: Methods, devices, and systems for changing a layer 2 (L2) identifier (ID) during an ongoing vehicle-to-everything (V2X) session between a source wireless transmit/receive unit (WTRU) and a peer WTRU include communicating between the source and a peer WTRUs based on an existing layer 2 (L2) identifier (ID). On a condition that a trigger event occurs, the source WTRU generates a new source L2 ID, communicates the new source L2 ID to the peer WTRU, receives from the peer WTRU a message that responds to the new source L2 ID, and communicates between the source WTRU and the peer WTRU based on the new source L2 ID.Type: ApplicationFiled: March 18, 2025Publication date: July 31, 2025Inventors: Michelle Perras, Khalid Anwar, Saad Ahmad, Alec Brusilovsky, Samir Ferdi
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Publication number: 20250234418Abstract: Methods, systems, and apparatuses for protocol data unit (PDU) session management over different access technologies (ATS) are disclosed. A wireless transmit/receive unit (WTRU) may receive a first message from a network over a first access technology. The first message may include an indication for the WTRU to reestablish resources for one or more protocol data unit (PDU) sessions over a second access technology. The WTRU may determine that a PDU session of the one or more PDU sessions is locally deactivated by the WTRU. The WTRU may send a second message via the first access technology. The second message may include a PDU session status information element (IE) indicating the PDU session is locally deactivated such that the network releases the PDU session.Type: ApplicationFiled: April 2, 2025Publication date: July 17, 2025Applicant: InterDigital Patent Holdings, Inc.Inventors: Mahmoud Watfa, Behrouz Aghili, Saad Ahmad, Xiaoyan Shi, Ulises Olvera-Hernandez
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Publication number: 20250234196Abstract: Embodiments include methods and apparatuses for providing access to a network slice in a communication system. In an embodiment, a network server that implements a Control Plane (CP) Network Function (NF) may receive a Non-Access Stratum (NAS) message from a wireless transmit and receive unit (WTRU). The NAS message comprises a Mobility Management (MM) message for registration and a Session Management (SM) messages for a specific service provided by the network slice. After selecting the network slice, the network server may transmit the SM message to another CP NF in the network slice to establish a communication link between the WTRU and the network slice.Type: ApplicationFiled: March 12, 2025Publication date: July 17, 2025Applicant: InterDigital Patent Holdings, Inc.Inventors: Mahmoud Watfa, Behrouz Aghili, Saad Ahmad, Ulises Olvera-Hernandez
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Patent number: 12363669Abstract: A WTRU may initiate access for a PDU session over multiple access networks. The WTRU may register with two or more access networks. For example, the WTRU may register with a 3GPP access network (e.g., LTE Advanced) and a non-3GPP access network (e.g., Wi-Fi). The WTRU may determine to request a multi-access PDU session for a (e.g., at least one) PDU session. A multi-access PDU session may correspond to a PDU session where the WTRU communicates one or more PDUs associated with the PDU session over the 3GPP access network and one or more PDUs associated with the PDU session over the non-3GPP access network. The WTRU may receive a confirmation message indicating that a multi-access PDU session has been established. The WTRU may send uplink data over the 3GPP access network and the non-3GPP access network, e.g., in accordance with the established multi-access PDU session.Type: GrantFiled: February 29, 2024Date of Patent: July 15, 2025Assignee: InterDigital Patent Holdings, Inc.Inventors: Guanzhou Wang, Saad Ahmad, Khalid Anwar, Behrouz Aghili, Ulises Olvera-Hernandez, Mahmoud Watfa
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Patent number: 12356180Abstract: Methods, apparatus, and systems for a wireless transmit receive unit (WTRU) performing relay communications are provided. A method may include receiving a first message indicating: (1) a first security policy associated with a first data link, and (2) a maximum data rate for integrity protection (MDRIP) supported by the remote WTRU; transmitting, to a network, a second message indicating: (1) an MDRIP supported by the remote WTRU or by the relay WTRU, and (2) a request for PDU session establishment; receiving, from the network, a third message indicating a second security policy for a second data link; and establishing the first data link with the remote WTRU on the condition that an end-to-end (e2e) security policy is compatible with the second security policy, wherein the e2e security policy is determined according to the second security policy and a UP security policy of the relay WTRU.Type: GrantFiled: October 28, 2021Date of Patent: July 8, 2025Assignee: InterDigital Patent Holdings, Inc.Inventors: Samir Ferdi, Alec Brusilovsky, Michelle Perras, Xiaoyan Shi, Saad Ahmad
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Publication number: 20250220440Abstract: Systems, methods, and instrumentalities are provided for a network control node for connecting a wireless transmit/receive unit (WTRU) to a network slice in a network. The network control node may receive service information associated with a service being requested by the WTRU, wherein the service information comprises one or more of a service class, a quality of service (QoS) requirement, or a mobility characteristic. The network control node may determine slice information associated with a plurality of network slices, wherein the slice information comprises one or more of an identifier of the network slice, priority of the network slice, a service class served by the network slice, a target device class, a QoS target, mobility support, security service, charging information, and/or performance information. The network control node may determine subscriber information for the WTRU.Type: ApplicationFiled: March 17, 2025Publication date: July 3, 2025Applicant: InterDigital Patent Holdings, Inc.Inventors: Guanzhou Wang, Mahmoud Watfa, Saad Ahmad
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Publication number: 20250220603Abstract: A device for synchronizing multi-modal flows may receive synchronization information associated with a protocol data unit (PDU) session. The synchronization information may indicate a first flow classifier, a second flow classifier, and a synchronization threshold. A first data flow may be determined based on the first flow classifier. A second data flow may be determined based on the second flow classifier. The first data flow and the second data flow may be associated with the PDU session. A synchronization measurement may be determined based on the synchronization information. The synchronization measurement indicates a synchronization value indicative of synchronization between the first data flow and the second data flow. The device may determine that the first data flow and the second data flow are asynchronous based on the synchronization measurement.Type: ApplicationFiled: March 23, 2023Publication date: July 3, 2025Applicant: InterDigital Patent Holdings, Inc.Inventors: Michael Starsinic, Magurawalage Chathura Madhusanka Sarathchandra, Xavier De Foy, Achref Methenni, Rocco Di Girolamo, Saad Ahmad, Michelle Perras, Samir Ferdi, Loic Fontaine, Patrice Hirtzlin
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Patent number: 12349222Abstract: A wireless transmit/receive unit (WTRU) may establish a multi-access (MA) protocol data unit (PDU) in accordance with the examples described herein. The WTRU may establish a new packet data network (PDN) connection or identify a suitable existing PDN connection in an evolved packet core (EPC), establish a MA-PDU in a 5G core network (5GC), and associate the existing PDN with the MA-PDU. The WTRU may already have a MA-PDU session established in 5GC with both 3GGP access leg and non-3GPP access leg in 5GC, and the WTRU may replace the 3GGP access leg in 5GC with a suitable PDN connection in EPC. The WTRU may send a request for establishing a single-access PDU session in 5GC via non-3GPP access, and a 5GC network may upgrade a PDU session established for the WTRU to a MA-PDU with 3GGP access leg in EPC.Type: GrantFiled: February 15, 2021Date of Patent: July 1, 2025Assignee: InterDigital Patent Holdings, Inc.Inventors: Guanzhou Wang, Saad Ahmad
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Publication number: 20250212048Abstract: Systems, methods, and instrumentalities are described herein for assistance to radio area networks (RAN's) for extended Reality (XR) applications. A wireless transmit/receive unit (WTRU) may be configured to receive a configuration message from a network node. The configuration message may indicate a connected mode discontinuous reception (CDRX) active time duration and may indicate that the CDRX active time duration can be extended, determine uplink extended reality media (XRM) data to be sent to the network node. The WTRU may determine a length of time for extending the CDRX active time duration based on a property of the uplink XRM data. The WTRU may send assistance information to the network node. The assistance information may indicate a request to extend the CDRX active time duration by the length of time.Type: ApplicationFiled: March 28, 2023Publication date: June 26, 2025Applicant: InterDigital Patent Holdings, Inc.Inventors: Rocco Di Girolamo, Michael Starsinic, Jaya Rao, Achref Methenni, Saad Ahmad
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Publication number: 20250212270Abstract: Methods and apparatuses are described herein for Personal Internet of Things Network (PIN) management. A first wireless transmit/receive unit (WTRU) may transmit, to a network node in a cellular network, a first non-access stratum (NAS) request indicating capability of the first WTRU as a PIN Element (PE) with Management Capability (PEMC) in a PIN. The WTRU may receive, from the network node, a first NAS response including authorization information, an authorized PIN type and validity duration of the PIN. The WTRU may receive, from a second WTRU, a connection request including PE information associated with the second WTRU. The PE information may include a PE type and a PE capability. The WTRU may transmit, to the second WTRU, based on the PE type and the PE capability being compatible with the authorized PIN type, a connection response indicating the second WTRU is authorized as a PE of the PIN.Type: ApplicationFiled: March 27, 2023Publication date: June 26, 2025Applicant: INTERDIGITAL PATENT HOLDINGS, INC.Inventors: Taimoor Abbas, Debashish Purkayastha, Anuj Sethi, Xiaoyan Shi, Michael Starsinic, Saad Ahmad
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Publication number: 20250212061Abstract: Procedures, methods, architectures, apparatuses, systems, devices, and computer program products directed to analytics-based user plane optimization are provided.Type: ApplicationFiled: March 28, 2023Publication date: June 26, 2025Inventors: Tezcan Cogalan, Morteza Kheirkhah, Alain Mourad, Ulises Olvera-Hernandez, Saad Ahmad, Michael Starsinic, Guanzhou Wang
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Patent number: 12341618Abstract: 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: GrantFiled: March 27, 2024Date of Patent: June 24, 2025Assignee: 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
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Publication number: 20250203500Abstract: In some cases, a network may have restrictions on the number of connections that it can maintain (e.g., for a given area there may be a maximum capacity). Accordingly, there is a need to handle such restrictions in the most efficient manner possible such that devices wishing to connect or with current connections to the network are provided with the best possible chance of achieving their communication goals.Type: ApplicationFiled: March 28, 2023Publication date: June 19, 2025Applicant: INTERDIGITAL PATENT HOLDINGS, INC.Inventors: Michael Starsinic, Ulises Olvera-Hemandez, Samir Ferdi, Anuj Sethi, Saad Ahmad
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Publication number: 20250203501Abstract: Procedures, methods, architectures, apparatuses, systems, devices, and computer program products for a wireless transmit/receive unit (WTRU) to determine slice availability in tracking areas (TAs) of a registration area (RA). In a representative example, the WTRU may use determined slice availability to detect changes in slice availability among different TAs. For example, the WTRU may move from a first TA of a RA where access to a first slice is unavailable to a second TA of the RA where access to the first slice is available. The WTRU may receive information during a registration procedure in the first TA that indicates the first slice is available in less than all TAs of the RA. Upon moving to the second TA, the WTRU may (e.g., again) perform a registration procedure in the second TA of the RA in order to access the first slice in the second TA.Type: ApplicationFiled: February 28, 2025Publication date: June 19, 2025Inventors: Michael Starsinic, Samir Ferdi, Saad Ahmad, Ulises Olvera-Hernandez, Anuj Sethi
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Patent number: 12336026Abstract: A method for setting up a multiple radio access technology (multi-RAT) device-to-device (D2D) communication is disclosed. An application function (AF) in a wireless transmit/receive unit (WTRU) may identify a group of multiple radio access technology (multi-RAT) capable WTRUs to a policy control function (PCF), wherein one or more multi-RAT capable WTRUs of the group of multi-RAT capable WTRUs register as having enhanced device-to-device (ED2D) functionality. The AF may select a multi-RAT capable WTRU from the group of multi-RAT capable WTRUs having ED2D functionality, as a relay for extended D2D operation. The device with ED2D function will act as Relay for ED2D (RED2D). The PCF may then reconfigure the RED2D with group related information. The RED2D may then configure D2D communication among the group of multi-RAT capable WTRUs.Type: GrantFiled: April 20, 2021Date of Patent: June 17, 2025Assignee: INTERDIGITAL PATENT HOLDINGS, INC.Inventors: Debashish Purkayastha, Michel Roy, Robert Gazda, Saad Ahmad, Ulises Olvera-Hernandez
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Publication number: 20250175248Abstract: Methods, devices, and systems are disclosed for multi-hop relays that may be implemented by advertising first relaying capabilities and a first number of hops to reach a remote wireless transmit/receive unit (WTRU), receiving second relaying capabilities and a second number of hops to reach the remote WTRU from a selected relay WTRU, updating a relay capabilities table based on the second relaying capabilities and the second number of hops, receiving a packet comprising a payload, the packet having a traffic type and further comprising a maximum number of hops, selecting the selected relay WTRU based on the traffic type, the maximum number of hops, and the relay capabilities table, generating a first updated packet comprising the payload, the traffic type and a first updated number of hops that is one less than the maximum number of hops, and transmitting the first updated packet to the selected relay WTRU.Type: ApplicationFiled: January 27, 2025Publication date: May 29, 2025Applicant: InterDigital Patent Holdings, inc.Inventors: Michelle PERRAS, Saad Ahmad, Eldad Zeira
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Publication number: 20250175776Abstract: A WTRU may receive a first message comprising one or more criteria associated with an application server. If one or more local application servers satisfy the one or more criteria, the WTRU may send a second message to the local client device. The second message may comprise information for accessing the one or more local application servers in the local network. If no local application servers in the local network satisfy the one or more criteria, the WTRU may send a third message comprising the one or more criteria to a central application management server. The WTRU may receive a fourth message from the central application management server indicating one or more non-local application servers that satisfy the one or more criteria. The WTRU may send a fifth message to the local client device with information for accessing the one or more non-local application servers.Type: ApplicationFiled: March 24, 2023Publication date: May 29, 2025Applicant: InterDigital Patent Holdings, Inc.Inventors: Debashish Purkayastha, Jiwan Ninglekhu, Robert Gazda, Taimoor Abbas, Anuj Sethi, Saad Ahmad, Xiaoyan Shi, Michael Starsinic