公开(公告)号：US12133277B2

公开(公告)日：2024-10-29

申请号：US17517229

申请日：2021-11-02

申请人： InterDigital Patent Holdings, Inc.

发明人： Guanzhou Wang ,  Saad Ahmad ,  Mahmoud Watfa ,  Ulises Olvera-Hernandez ,  Xiaoyan Shi ,  Bartosz Balazinski

IPC分类号： H04W76/19 ,  H04W12/06 ,  H04W36/00 ,  H04W48/18 ,  H04W76/30 ,  H04W36/30

CPC分类号： H04W76/19 ,  H04W12/06 ,  H04W36/0022 ,  H04W36/0033 ,  H04W48/18 ,  H04W76/30 ,  H04W36/305

摘要： A method and a system are disclosed for providing session continuity in a 5G system. A wireless transmit receive unit (WTRU) may receive, from a session management function (SMF), a first Non-Access Stratum (NAS) message indicating a Packet Data Unit (PDU) session re-establishment. Upon receiving the first NAS message, the WTRU may determine an old PDU session ID based on the NAS message and generate a new PDU session ID. The WTRU may transmit a second NAS message indicating a PDU session establishment request. The second NAS message may include the old and new PDU session IDs. Upon receiving the PDU session establishment request, the SMF may determine that the old PDU session ID is associated with an existing PDU session for which the PDU session re-establishment is requested. The SMF may also determine that the new PDU session ID is associated with a new PDU session to be established.

公开(公告)号：US11950198B2

公开(公告)日：2024-04-02

申请号：US16636399

申请日：2018-08-10

申请人： InterDigital Patent Holdings, Inc.

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

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

CPC分类号： H04W60/005 ,  H04W48/18 ,  H04W76/16

摘要： 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

申请人： InterDigital Patent Holdings, Inc.

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

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

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

摘要： 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：US11855892B2

公开(公告)日：2023-12-26

申请号：US16088380

申请日：2017-03-30

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

发明人： Guanzhou Wang ,  Saad Ahmad ,  Mahmoud Watfa

IPC分类号： H04L45/741 ,  H04L45/745 ,  H04W40/24

CPC分类号： H04L45/741 ,  H04L45/745 ,  H04W40/246

摘要： A system and apparatus for addressing the different types of mobility of a wireless transmit/receive unit (WTRU) in a network. A radio access network (RAN) may send a request for configuration information to a gateway device including a device ID of a WTRU, a service ID, and a RAN address. Once the RAN receives configuration information from the gateway device including a forwarding table, the RAN may be prepared to receive non-IP data from a WTRU including a routing tag. The routing tag may be based on the device ID of a WTRU and service ID. The RAN may transmit the non-IP data received from the WTRU to the gateway device over a routing path based on the routing tag and a forwarding table where the non-IP data is forwarded on to its detention, such as another WTRU or an Application Server.

公开(公告)号：US20230300734A1

公开(公告)日：2023-09-21

申请号：US18202109

申请日：2023-05-25

申请人： InterDigital Patent Holdings, Inc.

发明人： Mahmoud Watfa ,  Saad Ahmad

IPC分类号： H04W48/18 ,  H04W36/06 ,  H04W36/24

CPC分类号： H04W48/18 ,  H04W36/06 ,  H04W36/24 ,  H04W36/12

摘要： Systems, methods, and instrumentalities are disclosed for network slice selection and/or reselection. A WTRU may receive updated assistance information for network slice selection and/or reselection. The WTRU may apply local policies to determine when to use the updated assistance information to access a network slice. The WTRU may determine whether to contact an existing network slice function or a new network slice function to establish a connection to a network slice. Based on the determination, the WTRU may transmit different information to the network. The network slice selection and/or reselection may be initiated by a WTRU or by a network.

公开(公告)号：US20220141743A1

公开(公告)日：2022-05-05

申请号：US17577591

申请日：2022-01-18

申请人： InterDigital Patent Holdings, Inc.

发明人： Mahmoud Watfa ,  Guanzhou Wang ,  Behrouz Aghili ,  Amir Helmy

IPC分类号： H04W36/12 ,  H04W36/00

摘要： 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：US10925067B2

公开(公告)日：2021-02-16

申请号：US16197867

申请日：2018-11-21

申请人： InterDigital Patent Holdings, Inc.

发明人： Mahmoud Watfa ,  Pascal M. Adjakple ,  Saad Ahmad

IPC分类号： H04W72/04 ,  H04W28/02 ,  H04W48/08 ,  H04W76/10 ,  H04W28/12 ,  H04W4/14 ,  H04W76/16 ,  H04W48/16

摘要： Techniques for congestion management in a communication network are contemplated. For example, a wireless transmit receive unit (WTRU) may include a Radio Resource Control (RRC) layer and a Non-Access Stratum (NAS) layer. The RRC layer may receive an indication for a service, for example from the NAS. The indication may be interpreted as a request for the particular service indicated. For example, the indicated service may correspond to at least one of: a mobile originated (MO) voice communication, a circuit switched fallback (CSFB) supplementary service (SS), or a MO short message service (SMS). The RRC layer may receive a signal from a network indicating that one or more services provided by the network are allowed. The RRC layer may send a connection request to the network for the service sought by the NAS if that service is one of the one or more services allowed.

公开(公告)号：US10534932B2

公开(公告)日：2020-01-14

申请号：US15516337

申请日：2015-10-02

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

发明人： Guanzhou Wang ,  Loic Canonne-Velasquez ,  Saad Ahmad ,  Mahmoud Watfa ,  Dimitrios Karampatsis

IPC分类号： H04L29/00 ,  G06F21/62 ,  H04W4/029 ,  H04L29/08 ,  H04L29/06 ,  H04W8/00 ,  H04W12/08 ,  H04W84/04

摘要： 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.

公开(公告)号：US10448444B2

公开(公告)日：2019-10-15

申请号：US15255904

申请日：2016-09-02

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

发明人： Pascal M Adjakple ,  Mahmoud Watfa ,  Ulises Olvera-Hernandez ,  Peter S Wang ,  Kai Liu ,  Saad Ahmad ,  Ghyslain Pelletier

IPC分类号： H04L12/28 ,  H04W76/15 ,  H04W60/00 ,  H04J1/16

摘要： A WTRU may send a registration message to a core network (CN) that is associated with a first cell of a first radio access technology (RAT) and a second cell of a second RAT. The WTRU may receive, on the first cell of the first RAT with a first radio resource control (RRC) protocol, a RRC reconfiguration message that includes information for communications with the second cell of the second RAT. The first cell of the first RAT may be utilized for mobility management and a second RRC protocol may be utilized with the second cell of the second RAT.

公开(公告)号：US20190124489A1

公开(公告)日：2019-04-25

申请号：US16089252

申请日：2017-03-30

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

发明人： Saad Ahmad ,  Mahmoud Watfa

IPC分类号： H04W4/40 ,  H04W4/06

摘要： A system and apparatus are disclosed herein for vehicle to everything (V2X) wireless communication. A V2X wireless transmit/receive unit (WTRU) may receive a vehicle to everything (V2X) message including configuration information and a road side unit (RSU) address. The WTRU may then transmit a message to the RSU according to the configuration information including multimedia broadcast multicast services (MBMS) data. The configuration information may include a MBMS service descriptor. One or more of the V2X messages may include priority information, WTRU type information, or both.