公开(公告)号：US12262200B2

公开(公告)日：2025-03-25

申请号：US18503798

申请日：2023-11-07

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Mahmoud Watfa ,  Behrouz Aghili ,  Saad Ahmad ,  Ulises Olvera-Hernandez

IPC: H04L9/40 ,  H04L41/0893 ,  H04W4/18 ,  H04W8/02 ,  H04W8/08 ,  H04W12/06 ,  H04W16/02 ,  H04W48/18 ,  H04W60/00 ,  H04W76/10 ,  H04W88/14

Abstract: 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.

公开(公告)号：US12245074B2

公开(公告)日：2025-03-04

申请号：US18736392

申请日：2024-06-06

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Saad Ahmad ,  Behrouz Aghili ,  Xiaoyan Shi ,  Samir Ferdi ,  Michelle Perras

IPC: H04W28/02 ,  H04W40/22 ,  H04W76/23

Abstract: Methods and apparatuses directed to non-access stratum procedures in connection with layer 2 relaying are provided. A method implemented in a first WTRU, may comprise: receiving, from a second WTRU, a first sidelink transmission comprising a first information indicating an amount of time for the first WTRU to refrain from transmitting, to the second WTRU; determining to reselect to a third WTRU responsive to receiving the first information and based on a second sidelink transmission from the third WTRU; reselecting or autonomous reselecting to the third WTRU; establishing a connection with the third WTRU; and transmitting, to the third WTRU, a third sidelink transmission comprising a second information indicating congestion as a cause for the reselection.

公开(公告)号：US20240340766A1

公开(公告)日：2024-10-10

申请号：US18293943

申请日：2022-07-29

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Taimoor Abbas ,  Behrouz Aghili ,  Xiaoyan Shi ,  Anuj Sethi ,  Samir Ferdi ,  Michelle Perras

IPC: H04W40/24 ,  H04W8/00 ,  H04W40/22 ,  H04W76/14

CPC classification number: H04W40/246 ,  H04W40/22 ,  H04W76/14 ,  H04W8/005

Abstract: Systems, methods, and instrumentalities are described herein that are associated with providing access to a network (e.g., if access to a different network is lost, affected, etc.). A WTRU may act as a relay to another WTRU, For example, a first VVTRU may act as a relay WTRU (e.g., a VVTRU to network relay, such as a proximity services (ProSe) WTRU to network relay) towards a second WTRU (e.g., a remote WTRU). The first WTRU may provide discovery and/or connection establishment associated with the second WTRU accessing the network (e.g., if there is a service disruption to another network).

公开(公告)号：US12101739B2

公开(公告)日：2024-09-24

申请号：US17618213

申请日：2020-06-16

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Alec Brusilovsky ,  Xiaoyan Shi ,  Ulises Olvera-Hernandez ,  Guanzhou Wang ,  Saad Ahmad ,  Samir Ferdi ,  Behrouz Aghili

IPC: H04W68/02 ,  H04W48/18 ,  H04W68/00

CPC classification number: H04W68/02 ,  H04W48/18 ,  H04W68/005

Abstract: A method for use in wireless transmit/receive unit (WTRU) which assesses both a first network and a second network to receive radio frames from each of the first network and the second network is disclosed. The method comprise: obtaining a first paging occasion (PO) as the first network's current PO and a second PO as the second network's current PO; determining whether there is a PO collision between the first PO and the second PO, on condition that there is the PO collision, selecting a network from the first network and the second network, and sending a request to the selected network; receiving, from the selected network, a collision avoidance parameter corresponding to the request; calculating a third PO for the selected network using the collision avoidance parameter, and using the third PO as the selected network's current PO.

公开(公告)号：US20240236718A9

公开(公告)日：2024-07-11

申请号：US18277337

申请日：2022-02-15

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Behrouz Aghili ,  Samir Ferdi ,  Alec Brusilovsky

IPC: H04W24/04 ,  H04W36/14 ,  H04W36/24

CPC classification number: H04W24/04 ,  H04W36/14 ,  H04W36/24

Abstract: The disclosure pertains to methods and apparatus for minimization of service interruption in wireless networks, such as 5G networks. According to an embodiment, a method, implemented in a wireless transmit/receive unit, WTRU, comprises: transmitting, to a second network, first information indicating a request to register with the second network, wherein the first information comprises information indicating an identity of a first network to which the WTRU is currently registered; receiving, from the second network, second information indicating an acceptance of registration to the second network, wherein the second information comprises information indicating a maximum amount of PDU sessions, wherein the maximum amount corresponds to a limit of allowable PDU sessions; and transmitting, to the second network, third information indicating a request to establish a second amount of PDU sessions no more than the limit of allowable PDU sessions.

公开(公告)号：US11950198B2

公开(公告)日：2024-04-02

申请号：US16636399

申请日：2018-08-10

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Guanzhou Wang ,  Saad Ahmad ,  Khalid Anwar ,  Behrouz Aghili ,  Ulises Olvera-Hernandez ,  Mahmoud Watfa

IPC: H04W60/00 ,  H04W48/18 ,  H04W76/16

CPC classification number: H04W60/005 ,  H04W48/18 ,  H04W76/16

Abstract: 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.

公开(公告)号：US11877151B2

公开(公告)日：2024-01-16

申请号：US17731573

申请日：2022-04-28

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Mahmoud Watfa ,  Behrouz Aghili ,  Saad Ahmad ,  Ulises Olvera-Hernandez

IPC: H04L9/40 ,  H04L41/0893 ,  H04W8/08 ,  H04W48/18 ,  H04W76/10 ,  H04W12/06 ,  H04W8/02 ,  H04W16/02 ,  H04W4/18 ,  H04W60/00 ,  H04W88/14

CPC classification number: H04W12/06 ,  H04L63/0876 ,  H04W4/18 ,  H04W8/02 ,  H04W16/02 ,  H04W60/00 ,  H04W88/14

Abstract: 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.

公开(公告)号：US20220141743A1

公开(公告)日：2022-05-05

申请号：US17577591

申请日：2022-01-18

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Mahmoud Watfa ,  Guanzhou Wang ,  Behrouz Aghili ,  Amir Helmy

IPC: H04W36/12 ,  H04W36/00

Abstract: Methods and apparatuses for redirecting a wireless transmit/receive unit (WTRU) to a dedicated core network (CN) node are described. An apparatus is configured to initiate a Service Request with a non-dedicated network node. The apparatus is configured to receive a special identifier in response to the Service Request, which indicates the apparatus should be redirected to a dedicated CN node based on subscription information. Radio access network resources associated with the apparatus may be released and the apparatus may then perform a tracking area update (TAU) request which is then forwarded to the dedicated CN node.

公开(公告)号：US20190037488A1

公开(公告)日：2019-01-31

申请号：US16148769

申请日：2018-10-01

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Guanzhou Wang ,  Saad Ahmad ,  Behrouz Aghili ,  Martino M. Freda ,  Mahmoud Watfa ,  Ulises Olvera-Hernandez ,  Pascal M. Adjakple

IPC: H04W52/02 ,  H04W68/02 ,  H04W72/04 ,  H04W76/28

Abstract: A wireless transmit/receive unit (WTRU) is configured to receive at least three sets of parameters associated with power saving. A first set of the parameters is associated with an idle state. A second set of the parameters is associated with a connected state. A third set of the parameters is associated with not being in a connected state and remains registered with a network and maintains a packet data network (PDN) connection. The WTRU is configured to enter active times based on the third set of parameters on a condition that the WTRU is not in the connected state and remains registered with the network. During the active times, the WTRU is configured to monitor physical downlink control channels (PDCCHs) for paging messages.

公开(公告)号：US10091723B2

公开(公告)日：2018-10-02

申请号：US15088895

申请日：2016-04-01

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Guanzhou Wang ,  Saad Ahmad ,  Behrouz Aghili ,  Martino M. Freda ,  Mahmoud Watfa ,  Ulises Olvera-Hernandez ,  Pascal M. Adjakple

IPC: H04W4/00 ,  H04W52/02 ,  H04W68/02 ,  H04W72/04 ,  H04W76/28

Abstract: Methods and apparatus may be used for selecting power saving mechanisms in a wireless transmit/receive unit (WTRU). For example, a WTRU may support at least power saving mode (PSM) and/or extended discontinuous reception (eDRX) mode. The WTRU may send a request message including parameters associated with the supported power saving mechanisms, such as an active time for PSM and a preferred DRX value for eDRX mode. The WTRU may receive an accept message including at least one selected parameter indicating the power saving mechanism for the WTRU selected by the network (NW). The WTRU may activate the selected power saving mechanism, and may start a validity timer to define the duration of use of the selected power saving mechanism. In another example, a WTRU configured to use eDRX may receive paging signals for system information (SI) change over a prolonged Broadcast Control Channel (BCCH) modification period.