公开(公告)号：US20230125259A1

公开(公告)日：2023-04-27

申请号：US18084052

申请日：2022-12-19

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Paul Marinier ,  Afshin Haghighat ,  Guodong Zhang ,  Diana Pani ,  J. Patrick Tooher ,  Marian Rudolf ,  Ghyslain Pelletier ,  Christopher R. Cave ,  Yan Li ,  Allan Y. Tsai ,  Pascal M. Adjakple

IPC: H04B7/024 ,  H04B7/06

Abstract: Embodiments contemplate methods and systems for determining and communicating channel state information (CSI) for one or more transmission points (or CSI reference signal resources). Embodiments further contemplate determining transmission states may include applying at least one transmission state parameter to channel state information (CSI). Embodiments also contemplate reporting CSI based on the transmission state and/or at least one transmission state parameter applied thereto.

公开(公告)号：US11546893B2

公开(公告)日：2023-01-03

申请号：US16890485

申请日：2020-06-02

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Erdem Bala ,  Philip J. Pietraski ,  Sung-Hyuk Shin ,  Guodong Zhang ,  Allan Y. Tsai ,  Joseph S. Levy ,  Pascal M. Adjakple ,  John W. Haim ,  Robert L. Olesen ,  Kyle Jung-Lin Pan

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/024 ,  H04L1/18 ,  H04B7/06 ,  H04L1/16

Abstract: A method and apparatus for transmitting uplink control information (UCI) for Long Term Evolution-Advanced (LTE-A) using carrier aggregation is disclosed. Methods for UCI transmission in the uplink control channel, uplink shared channel or uplink data channel are disclosed. The methods include transmitting channel quality indicators (CQI), precoding matrix indicators (PMI), rank indicators (RI), hybrid automatic repeat request (HARQ) acknowledgement/non-acknowledgement (ACK/NACK), channel status reports (CQI/PMI/RI), source routing (SR) and sounding reference signals (SRS). In addition, methods for providing flexible configuration in signaling UCI, efficient resource utilization, and support for high volume UCI overhead in LTE-A are disclosed.

公开(公告)号：US20220294772A9

公开(公告)日：2022-09-15

申请号：US16783561

申请日：2020-02-06

Applicant: InterDigital Patent Holdings, Inc.

Inventor： MAHMOUD WATFA ,  Guanzhou Wang ,  Saad Ahmad ,  Pascal M. Adjakple ,  Ulises Olvera-Hernandez

IPC: H04L29/06 ,  H04W76/15

Abstract: Methods and apparatuses for offloading traffic from a third generation partnership project (3GPP) access network to a non-3GPP access point (AP) are disclosed. A 3GPP access network entity may receive subscription information associated with a wireless transmit receive unit (WTRU). The 3GPP access network entity may further receive traffic associated with the WTRU. The 3GPP access network entity may further determine whether to offload the traffic to the non-3GPP AP based on the subscription information. The 3GPP access network entity may also forward the traffic to the non-3GPP AP based on its determination.

公开(公告)号：US11240859B2

公开(公告)日：2022-02-01

申请号：US16589342

申请日：2019-10-01

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Pascal M. Adjakple ,  Ulises Olvera-Hernandez ,  Peter S. Wang ,  Kai Liu ,  Saad Ahmad

IPC: H04W76/10 ,  H04W76/15 ,  H04W36/28 ,  H04W28/02 ,  H04W36/22 ,  H04W72/04 ,  H04W72/08 ,  H04W88/06 ,  H04W36/12

Abstract: A method and apparatus for multiple radio access technology (multi-RAT) access mode operation for a wireless transmit/receive unit (WTRU) are disclosed. A WTRU and a network may enable a multi-RAT access mode of operation based on at least one of WTRU subscription, a service agreement of the WTRU, a roaming status of the WTRU, a selected access point name (APN), an Internet protocol (IP) flow class, a subscriber profile identity for the WTRU, requested quality of service, or a proximity indication indicating proximity to a cell supporting multi-RAT access mode. The WTRU may send a capability indication of support of multi-RAT access to a network, wherein the multi-RAT access mode is enabled based on the capability indication. A partial handover of bearers may be performed. In performing the handover, the target cell is determined based on a priority rule.

公开(公告)号：US20200235965A1

公开(公告)日：2020-07-23

申请号：US16785309

申请日：2020-02-07

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Janet A. Stern-Berkowitz ,  Pouriya Sadeghi ,  J. Patrick Tooher ,  Samian Kaur ,  Marian Rudolf ,  Pascal M. Adjakple

IPC: H04L27/00 ,  H04L5/00 ,  H04W16/14 ,  H04W72/12

Abstract: Systems, methods, and instrumentalities are disclosed for Uplink operation in LTE unlicensed spectrum (LTE-U). A wireless transmit/receive unit (WTRU) may receive licensed assisted access (LAA) configuration information, e.g., for a first cell from a second cell. The first cell may be associated with operation in an unlicensed band, and the second cell may be associated with operation in a licensed band. The WTRU may determine whether a first subframe is a sounding reference signal (SRS) subframe for the first cell. If the first subframe is an SRS subframe for the first cell, the WTRU may determine SRS resources for the first subframe and determine whether the WTRU is triggered to transmit an SRS transmission in the first subframe. If it is determined the WTRU is triggered to transmit the SRS transmission in the first subframe, the WTRU may transmit the SRS transmission on the SRS resources for the first subframe.

公开(公告)号：US10708810B2

公开(公告)日：2020-07-07

申请号：US15538394

申请日：2015-12-23

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Guanzhou Wang ,  Ghyslain Pelletier ,  Diana Pani ,  Pascal M. Adjakple

IPC: H04W28/02 ,  H04L12/875 ,  H04L12/835 ,  H04W72/12 ,  H04W88/06 ,  H04W28/08 ,  H04L12/851

Abstract: Embodiments may include methods, systems, and apparatuses for integrating a first radio access technology and a second radio access technology in a wireless transmit/receive unit (WTRU). The embodiments may include: gathering, by the WTRU, one or more metrics related to uplink/downlink transmissions; determining, based on the one or more metrics, that an amount of data from the first radio access technology should be offloaded to the second radio access technology; transmitting a first portion of the data to a base station using the first radio access technology; and transmitting a second portion of the data to a wireless local access network (WLAN) access point (AP) using the second radio access technology, wherein the WLAN AP is connected to the base station through an interface.

公开(公告)号：US10581813B2

公开(公告)日：2020-03-03

申请号：US14026546

申请日：2013-09-13

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

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

IPC: H04L29/06

Abstract: Methods and apparatuses for offloading traffic from a third generation partnership project (3GPP) access network to a non-3GPP access point (AP) are disclosed. A 3GPP access network entity may receive subscription information associated with a wireless transmit receive unit (WTRU). The 3GPP access network entity may further receive traffic associated with the WTRU. The 3GPP access network entity may further determine whether to offload the traffic to the non-3GPP AP based on the subscription information. The 3GPP access network entity may also forward the traffic to the non-3GPP AP based on its determination.

公开(公告)号：US10524199B2

公开(公告)日：2019-12-31

申请号：US15700799

申请日：2017-09-11

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： 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

IPC: H04W48/18 ,  H04W76/14 ,  H04W8/00 ,  H04W84/04 ,  H04L29/06 ,  H04W12/06 ,  H04L12/14 ,  H04M15/00 ,  H04W4/24 ,  H04L29/08 ,  H04W8/20 ,  H04W8/24 ,  H04W60/04

Abstract: 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.

公开(公告)号：US10178678B2

公开(公告)日：2019-01-08

申请号：US15033620

申请日：2014-10-30

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Mahmoud Watfa ,  Pascal M. Adjakple ,  Saad Ahmad

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

Abstract: 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：US10171276B2

公开(公告)日：2019-01-01

申请号：US15543794

申请日：2016-01-28

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Janet A. Stern-Berkowitz ,  Pouriya Sadeghi ,  J. Patrick Tooher ,  Samian Kaur ,  Marian Rudolf ,  Pascal M. Adjakple

IPC: H04L5/00 ,  H04W72/12 ,  H04L27/00 ,  H04W74/08 ,  H04W16/14

Abstract: Systems, methods, and instrumentalities are disclosed for Uplink operation in LTE unlicensed spectrum (LTE-U). A wireless transmit/receive unit (WTRU) may receive licensed assisted access (LAA) configuration information, e.g., for a first cell from a second cell. The first cell may be associated with operation in an unlicensed band, and the second cell may be associated with operation in a licensed band. The WTRU may determine whether a first subframe subframe is a sounding reference signal (SRS) subframe for the first cell. If the first subframe is an SRS subframe for the first cell, the WTRU may determine SRS resources for the first subframe and determine whether the WTRU is triggered to transmit an SRS transmission in the first subframe. If it is determined the WTRU is triggered to transmit the SRS transmission in the first subframe, the WTRU may transmit the SRS transmission on the SRS resources for the first subframe.