公开(公告)号：US11228956B2

公开(公告)日：2022-01-18

申请号：US17002246

申请日：2020-08-25

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04W36/12 ,  H04W36/00 ,  H04W36/22

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：US20210297914A1

公开(公告)日：2021-09-23

申请号：US17343270

申请日：2021-06-09

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Mahmoud Watfa ,  Behrouz Aghili

IPC: H04W36/12 ,  H04W36/38

Abstract: Methods, apparatus and systems using Enhanced Dedicated Core Network (DCN) selection are disclosed. One representative method includes receiving, by the core network entity from another core network entity, information indicating that a DCN type is new or has change for a wireless transmit/receive unit (WTRU); and sending a message, by the core network entity to the WTRU, including a new or a changed DCN type.

公开(公告)号：US10757626B2

公开(公告)日：2020-08-25

申请号：US16385529

申请日：2019-04-16

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04W36/12 ,  H04W36/00 ,  H04W36/22

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：US20200267616A1

公开(公告)日：2020-08-20

申请号：US16866097

申请日：2020-05-04

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Mahmoud Watfa ,  Behrouz Aghili

IPC: H04W36/12 ,  H04W36/38

Abstract: Methods, apparatus and systems using Enhanced Dedicated Core Network (DCN) selection are disclosed. One representative method includes receiving, by the core network entity from another core network entity, information indicating that a DCN type is new or has change for a wireless transmit/receive unit (WTRU); and sending a message, by the core network entity to the WTRU, including a new or a changed DCN type.

公开(公告)号：US10231216B2

公开(公告)日：2019-03-12

申请号：US15626541

申请日：2017-06-19

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Mahmoud Watfa ,  Ulises Olvera-Hernandez ,  Pascal M Adjakple ,  Kai Liu ,  Peter S Wang ,  Saad Ahmad ,  Behrouz Aghili

IPC: H04W72/04 ,  H04W76/10 ,  H04W60/04 ,  H04W60/00 ,  H04W76/27 ,  H04W76/12 ,  H04W84/04 ,  H04W80/04 ,  H04W88/06 ,  H04W92/10

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.

公开(公告)号：US20190014530A1

公开(公告)日：2019-01-10

申请号：US16066608

申请日：2017-01-05

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Behrouz Aghili ,  Saad Ahmad ,  Mahmoud Watfa

IPC: H04W48/08 ,  H04W28/12

Abstract: Systems, methods, and instrumentalities are disclosed for enhancements to NAS Protocol to transmit user data over a signaling plane. A wireless transmit receive unit (WTRU) may send a first NAS message to a network device that may include a request to send user data via a control plane. The network device may establish the control plane for the WTRU. The control plane may be established without establishing a user plane connection. The network device may determine a maximum transmission rate for the WTRU to send user data via the control plane. The network device may send a second NAS message to the WTRU. The second NAS message may indicate that the control plane has been established for the WTRU and the maximum transmission rate.

公开(公告)号：US10085292B2

公开(公告)日：2018-09-25

申请号：US15660658

申请日：2017-07-26

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Ana Lucia A. Pinheiro ,  Jean-Louis Gauvreau ,  Rocco Di Girolamo ,  Joseph M. Murray ,  Christopher R. Cave ,  Diana Pani ,  Behrouz Aghili ,  Mahmoud Watfa

IPC: H04W68/00 ,  H04W76/04 ,  H04W64/00 ,  H04W8/22 ,  H04W88/02 ,  H04W8/24 ,  H04W52/02 ,  H04W4/70 ,  H04W76/27 ,  H04W76/20

CPC classification number: H04W76/27 ,  H04W4/70 ,  H04W8/22 ,  H04W8/24 ,  H04W52/0209 ,  H04W64/00 ,  H04W68/005 ,  H04W76/20 ,  H04W76/28 ,  H04W76/38 ,  H04W88/02 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1226 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/21 ,  Y02D70/23 ,  Y02D70/24

Abstract: A method and apparatus for supporting machine-type communications (MTC) are disclosed. A wireless transmit/receive unit (WTRU) may configure itself to operate in a mobile-originated-only mode. The WTRU may perform no, or a subset of, radio resource control (RRC) idle and/or non-access stratum (NAS) idle/standby state procedures in the mobile-originated-only mode. For example, the WTRU may perform cell reselection but not paging monitoring in the mobile-originated-only mode. Alternatively, the WTRU may perform paging monitoring but not cell reselection and location update. The operation in the mobile-originated-only mode may be triggered explicitly or implicitly. For example, the WTRU may operate in the mobile-originated-only mode if an inactivity timer expires. The WTRU may switch the mode in accordance with a pre-configured schedule. After transition of the operation mode, the WTRU may send a message to the network indicating such mode switch.

公开(公告)号：US20180242214A1

公开(公告)日：2018-08-23

申请号：US15959701

申请日：2018-04-23

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04W36/12 ,  H04W36/00

CPC classification number: H04W36/12 ,  H04W36/0055 ,  H04W36/22

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：US20180103418A1

公开(公告)日：2018-04-12

申请号：US15834048

申请日：2017-12-06

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Behrouz Aghili ,  Joseph M. Murray ,  Jean-Louis Gauvreau ,  Ana Lucia A. Pinheiro ,  Diana Pani ,  Lujing Cai ,  Sylvie Gomes ,  Christopher R. Cave

IPC: H04W48/10 ,  H04W8/24 ,  H04W4/00

CPC classification number: H04W48/10 ,  H04W4/00 ,  H04W4/70 ,  H04W8/24

Abstract: Disclosed herein are embodiments for Machine Type Communication (MTC). The techniques disclosed may reduce signaling by transmitting MTC data over control planes and avoiding a full cycle of connection procedures typically required for transmission. MTC data may be directly appended to a control plane message. In addition, in order to reduce the signaling load, a WTRU may autonomously release the connection without being told by the network. Techniques may be used to indicate a network provider's machine type communication (MTC) capability. The MTC services or capabilities that may be provided by a respective network operator may be communicated to a WTRU.

公开(公告)号：US09781636B2

公开(公告)日：2017-10-03

申请号：US15149536

申请日：2016-05-09

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Mahmoud Watfa ,  Behrouz Aghili ,  Ulises Olvera-Hernandez ,  Nobuyuki Tamaki ,  Pascal M. Adjakple ,  J. Patrick Tooher ,  Peter S. Wang

IPC: H04W4/00 ,  H04W36/00 ,  H04B7/212 ,  H04J3/06

CPC classification number: H04W36/0022 ,  H04B7/2125 ,  H04B7/2126 ,  H04J3/0638 ,  H04W36/0033

Abstract: Method and apparatus efficiently signal and use resources for wireless communications supporting circuit switched (CS) and packet switched sessions (PS). Signaling and interaction between the wireless transmit/receive unit (WTRU), and various network entities, such as the Mobility Management Entity (MME), the Visitor Location Register (VLR), and Base Stations (BS), are used to implement circuit switched fall back (CSFB) in a PS system.