公开(公告)号：US20240163966A1

公开(公告)日：2024-05-16

申请号：US18552555

申请日：2022-03-25

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Hongkun LI ,  Michael STARSINIC ,  Quang LY ,  Catalina MLADIN ,  Jiwan NINGLEKHU ,  Pascal ADJAKPLE

IPC: H04W76/28 ,  H04W40/02

CPC classification number: H04W76/28 ,  H04W40/02 ,  H04W92/18

Abstract: Methods, apparatus, and systems are described for improved discontinuous reception (DRX) for PCS communication (e.g., including unicast, groupcast and broadcast) for a User Equipment (UE) and particularly for reducing the power consumption.

公开(公告)号：US20240163736A1

公开(公告)日：2024-05-16

申请号：US18283979

申请日：2022-04-05

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Ulises Olvera-Hernandez ,  Michel Roy ,  Robert Gazda ,  Scott Hergenhan

IPC: H04W36/00 ,  H04W76/15

CPC classification number: H04W36/0033 ,  H04W76/15

Abstract: The disclosure pertains to a method implemented in a Wireless Transmit/Receive Unit (WTRU) for service continuity during an application context relocation (ACR) procedure. The method includes determining, by the WTRU, one or more local area data network (LADN) data network names (DNNs) that require service continuity. The method additionally includes indicating, to a network by the WTRU, the LADN DNNs that require service continuity. The network is configured to use the list to maintain a protocol data unit (PDU) session toward a source LADN DNN, after the WTRU leaves a service area of a source LADN, while ACR is being executed and release the PDU session when the ACR is complete.

公开(公告)号：US11985549B2

公开(公告)日：2024-05-14

申请号：US15891279

申请日：2018-02-07

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Michelle Perras ,  Alexander Reznik

IPC: H04W36/00 ,  H04L61/5007 ,  H04W8/14

CPC classification number: H04W36/0016 ,  H04L61/5007 ,  H04W8/14 ,  H04W36/0011

Abstract: Embodiments contemplate that the transfer of an Internet Protocol (IP) address from one (e.g. a first) Gateway (GW) to another (e.g. a second) Gateway (GW) may improve the Dynamic Mobility Management (DMM) handling in any network environment, including a dense network environment. Embodiments contemplate a dense network may enable a User Equipment (UE or wireless transmit/receive unit (WTRU)) to be connected to the closest GW while the IP address transfer may enable the usage of a relatively short data path (e.g. perhaps a “shortest” data path), which may be useful in the context of DMM, perhaps even for existing flows. Using the contemplated capability of moving IP addresses may minimize the number of IP addresses allocated and/or the number of tunnels to be maintained.

公开(公告)号：US11985062B2

公开(公告)日：2024-05-14

申请号：US17798925

申请日：2021-02-16

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Xavier De Foy ,  Shamim Rahman ,  Chonggang Wang

IPC: H04L69/164 ,  H04L9/40 ,  H04L45/00 ,  H04L45/24 ,  H04L67/56

CPC classification number: H04L45/566 ,  H04L45/24 ,  H04L63/0428 ,  H04L67/56 ,  H04L69/164

Abstract: Methods and apparatuses for enabling multi-host multipath secure transport with Quick User Datagram Protocol (UDP) Connections (QUIC) are described herein. A method performed by a client endpoint may involve sending, to a network node, a request to establish a QUIC connection with a destination endpoint, the request to establish the QUIC connection including a flow identifier (ID). The method may involve receiving, from the network node, a response including an indication that the request to establish the QUIC connection with the destination endpoint is accepted. The method may involve encapsulating inner QUIC packetized data within outer QUIC packetized data, the inner QUIC packetized data including the flow ID. The method may involve sending, to the network node, the outer QUIC packetized data for forwarding toward the destination endpoint based on the flow ID.

公开(公告)号：US20240155722A1

公开(公告)日：2024-05-09

申请号：US18501547

申请日：2023-11-03

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Achref Methenni ,  Michael Starsinic ,  Rocco Di Girolamo ,  Ulises Olvera-Hernandez ,  Magurawalage Chathura Madhusanka Sarathchandra ,  Saad Ahmad ,  Renan Krishna

IPC: H04W76/20

CPC classification number: H04W76/20

Abstract: A first policy control function (PCF) in a first network node may receive an indication from a session management function (SMF) that a protocol data unit (PDU) session is an alternative PDU session, and an indication of whether the PDU session is in a drop state. The first PCF may send a message with an indication to a second PCF in a second network node to indicate that the network node is serving a PDU session that is an alternative PDU session. In an example, the message with an indication to the second PCF may also identify the PDU session. The first PCF may receive a message from the second PCF with an indication that a second PDU session has experienced a fault or degraded performance. Further, the first PCF may send a message to the SMF to change the PDU session to a no-drop state.

公开(公告)号：US20240155489A1

公开(公告)日：2024-05-09

申请号：US18501670

申请日：2023-11-03

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Michael Starsinic ,  Saad Ahmad ,  Guanzhou Wang

IPC: H04W52/02 ,  H04W48/10

CPC classification number: H04W52/0225 ,  H04W48/10

Abstract: A method performed by a wireless transmit receive unit (WTRU), of receiving a mobile terminated (MT) transmission using an ambient Internet of Things (IOT) service (AIS) is described. The method includes the WTRU receiving an activation signal from a radio access network (RAN) node and harvesting energy. The WTRU determines a format of the received activation signal and based on the format of the activation signal, determines to begin an MT Data procedure with the network. The WTRU receives system information broadcasted by the RAN node and determines to continue the MT data procedure with the network. The WTRU transmits a MT data request message to the RAN node; and receives a MT data container message from the RAN node. The MT data request may include an RRC part and NAS part. The MT data request may include a device identifier and an AIS ID.

公开(公告)号：US20240155335A1

公开(公告)日：2024-05-09

申请号：US18279554

申请日：2022-03-04

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Antonio de la Oliva ,  Joseph Levy ,  Robert Gazda

IPC: H04W12/02 ,  H04W12/033 ,  H04W12/08

CPC classification number: H04W12/02 ,  H04W12/033 ,  H04W12/08

Abstract: Methods and apparatuses for privacy enhancement are provided herein. A method performed by a station, STA (201), may include transmitting, to an access point, AP (202), a first frame including information indicating that the STA (201) will use an over-the-air medium access control, otaMAC, address for a frame sent to the AP (202). The method may further include generating (210) a second frame for transmission to the AP (202) including a network MAC, nMAC, address of the STA (201), encrypting (211) the generated second frame, and replacing (212) the nMAC address with an otaMAC address either during the encryption or after the encryption. The method may further include transmitting (213) the encrypted second frame, including the otaMAC, to the AP (202), such that the AP (202) may replace (214) the otaMAC address with the nMAC address and decrypt (215) the second frame for forwarding via a distribution system, DS (203).

公开(公告)号：US20240147410A1

公开(公告)日：2024-05-02

申请号：US18499630

申请日：2023-11-01

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Tuong Hoang ,  Fumihiro Hasegawa ,  Tao Deng ,  Paul Marinier ,  Moon IL Lee ,  Jaya Rao ,  Kunjan Shah

IPC: H04W64/00 ,  H04B17/318

CPC classification number: H04W64/00 ,  H04B17/328

Abstract: A target wireless transmit/receive unit (WTRU) may determine a signal quality of a received sidelink positioning reference signal (SL-PRS) from each anchor WTRU of a sidelink positioning group. The target WTRU may determine whether the sidelink positioning group is suitable for sidelink positioning, for example based on whether a number of anchor WTRUs of the sidelink positioning group that are suitable for sidelink positioning exceeds a threshold value. The target WTRU may determine a position of the target WTRU, for example using the sidelink positioning group based on the number of anchor WTRUs of the sidelink positioning group that are suitable for sidelink positioning exceeding the threshold value.

公开(公告)号：US20240147324A1

公开(公告)日：2024-05-02

申请号：US18538529

申请日：2023-12-13

Applicant: InterDigital Patent Holdings, Inc.

Inventor： J. Patrick Tooher ,  Ghyslain Pelletier ,  Benoit Pelletier ,  Paul Marinier ,  Yugeswar Deenoo ,  Martino M. Freda

IPC: H04W36/00 ,  H04W24/10 ,  H04W48/16 ,  H04W74/0833 ,  H04W84/04

CPC classification number: H04W36/0085 ,  H04W24/10 ,  H04W36/0055 ,  H04W48/16 ,  H04W74/0833 ,  H04W84/045

Abstract: Methods to perform, maintain and report measurements on a transmission-reception point (TRP) using limited reference signal transmission are described herein. The mobility measurement reports may utilize physical channels. Methods to obtain measurements on neighbor TRPs using limited RS transmissions are also described herein. Random-Access procedures to enable the addition of a neighbor TRP or handover without requiring higher layer signaling (and possibly without an interface between source and target TRP) are also described herein. New triggers to perform RA in order to decrease handover latency are also described herein. Wireless Transmit/Receive Unit (WTRU) behavior upon receiving RAR from multiple possible TRPs are also described herein. For example, a WTRU may store RAR information and use it later in an interrupted RA procedure.

公开(公告)号：US11968533B2

公开(公告)日：2024-04-23

申请号：US17440574

申请日：2020-03-27

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Samir Ferdi ,  Alec Brusilovsky ,  Guanzhou Wang

IPC: H04L29/06 ,  H04W12/08 ,  H04W12/106 ,  H04W60/00

CPC classification number: H04W12/08 ,  H04W12/106 ,  H04W60/00

Abstract: Method and apparatus for secure access control in wireless communications are disclosed. In an example, a method includes receiving a broadcast message including system information, identifying a first set of hashed identifiers (IDs) and a first random number based on the system information, and each ID of the first set of hashed IDs is individually hashed using at least the first random number. The method also includes calculating a first hash value for each ID of a second set of IDs using at least the first random number, determining whether at least a hashed ID of the second set of IDs matches a hashed ID of the first set of hashed IDs, and sending a request message based on a determination that at least a hashed ID of the second set of IDs matches a hashed ID of the first set of hashed IDs.