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    METHOD AND APPARATUS FOR MULTI-RAT ACCESS MODE OPERATION
    321.
    发明申请
    METHOD AND APPARATUS FOR MULTI-RAT ACCESS MODE OPERATION 有权

    公开(公告)号：US20220232650A1

    公开(公告)日：2022-07-21

    申请号：US17590096

    申请日：2022-02-01

    Applicant: InterDigital Patent Holdings, Inc.

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

    IPC: H04W76/15 ,  H04W36/28 ,  H04W28/02 ,  H04W36/22 ,  H04W72/04 ,  H04W72/08

    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.

    METHODS FOR SUPPORTING BSS EDGE USER TRANSMISSIONS
    323.
    发明申请
    METHODS FOR SUPPORTING BSS EDGE USER TRANSMISSIONS 有权

    公开(公告)号：US20220217770A1

    公开(公告)日：2022-07-07

    申请号：US17610343

    申请日：2020-05-08

    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

    Inventor： Li Hsiang Sun ,  Hanqing Lou ,  Alphan Sahin ,  Xiaofei Wang ,  Rui Yang ,  Frank La Sita

    IPC: H04W74/00 ,  H04W74/08 ,  H04W72/04 ,  H04W72/10 ,  H04B17/318

    Abstract: Methods and apparatuses for enhancing random access procedures are described herein. A method performed by an access point (AP) may comprise allocating a plurality of random access (RA) resource units (RA-RUs) for transmitting a message from a station (STA) to the AP over an upper or lower frequency band. The method may comprise transmitting, to a station (STA), one or more physical layer convergence procedure (PLCP) protocol data unit (PPDU) over the upper or lower frequency bands. Each of the one or more PPDUs may include a trigger frame, and the trigger frame may include an indication of the plurality of RA-RUs and a target received signal strength indicator (TRSSI) associated with at least one of the upper or lower frequency bands. The method may comprise receiving, in response to the trigger frame, the message from the STA in one of the plurality of RA-RUs.

    METHOD AND APPARATUS FOR MEDIUM ACCESS CONTROL FOR UNIFORM MULTIPLE ACCESS POINTS COVERAGE IN WIRELESS LOCAL AREA NETWORKS
    327.
    发明申请
    METHOD AND APPARATUS FOR MEDIUM ACCESS CONTROL FOR UNIFORM MULTIPLE ACCESS POINTS COVERAGE IN WIRELESS LOCAL AREA NETWORKS 有权

    公开(公告)号：US20220182106A1

    公开(公告)日：2022-06-09

    申请号：US17677566

    申请日：2022-02-22

    Applicant: InterDigital Patent Holdings, Inc.

    Inventor： Xiaofei Wang ,  Guodong Zhang ,  Oghenekome Oteri ,  Pengfei Xia

    IPC: H04B7/024 ,  H04W72/12 ,  H04B7/06 ,  H04W72/08

    Abstract: A method and apparatus may be used in multi-AP and multi-wireless transmit/receive unit joint transmissions. The apparatus may be configured to transmit a joint transmission request on a first medium, and receive a joint transmission response on the first medium. In response, the apparatus my perform a joint transmission negotiation on a second medium and transmit data on the second medium based on the joint transmission negotiation. The apparatus may be configured to perform coordinated sectorized or beamformed transmissions through access point (AP)/PCP negotiations. The apparatus may provide an indication of support for joint transmission and coordinated sectorized or beamformed transmissions. The method and apparatus may also implement multi-AP/WTRU request-to-send (RTS)/clear-to-send (CTS) procedures. The apparatus may be configured to perform coordinated sectorized or beamforming grouping.

    DETERMINING PHYSICAL CHANNEL RESOURCES IN A WIRELESS NETWORK
    328.
    发明申请
    DETERMINING PHYSICAL CHANNEL RESOURCES IN A WIRELESS NETWORK 有权

    公开(公告)号：US20220150887A1

    公开(公告)日：2022-05-12

    申请号：US17584998

    申请日：2022-01-26

    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

    Inventor： Moon-il Lee ,  Janet A. Stern-Berkowitz ,  Bala Erdem ,  Afshin Haghighat ,  Mihaela C. Beluri

    IPC: H04W72/04 ,  H04W52/36

    Abstract: A method performed by a wireless transmit/receive unit (WTRU) may include receiving configuration information for reporting a power headroom (PH) associated with each of a plurality of cells, wherein a first cell uses first time intervals each having a first length and a second cell uses second time intervals each having a second length. The method may include transmitting a first uplink transmission using a first carrier frequency associated with the first cell and transmitting, in one of the second time intervals that is fully overlapped by the one of the first time intervals, based on the received configuration information, a report including information indicating a first PH corresponding to the one of the first time intervals and a second PH corresponding to the earliest one in time of the second time intervals that is fully overlapped by the one of the first time intervals.

    MAINTAINING TIME ALIGNMENT WITH MULTIPLE UPLINK CARRIERS
    329.
    发明申请
    MAINTAINING TIME ALIGNMENT WITH MULTIPLE UPLINK CARRIERS 有权

    公开(公告)号：US20220150856A1

    公开(公告)日：2022-05-12

    申请号：US17579548

    申请日：2022-01-19

    Applicant: InterDigital Patent Holdings, Inc.

    Inventor： Paul Marinier ,  Bhaskar M. Anepu ,  Ghyslain Pelletier ,  Robert L. Olesen

    IPC: H04W56/00 ,  H04L5/00 ,  H04L27/26 ,  H04W74/08

    Abstract: Maintaining time alignment with multiple carriers is contemplated. A group of uplink carriers (UL CC sets) that operate with a single Timing Advance (TA) may be determined, and a TA value may be applied to a specific UL CC set. A wireless transmit/receive unit's (WTRU) capability of using multiple TAs may define a group index of a few bits for each UL CC set. A TA Command received in a Random Access Response message may be used to apply the TA value to each UL carrier of the UL CC set. The WTRU may determine which UL CC set the TA value applies to based on which DL carrier the command was transmitted from. The WTRU may determine which UL CC set the TA value applies to based on the Group Index being explicitly provided in the command. The WTRU may release multi-CC configurations upon Time Alignment Timer (TAT) expiry.

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