公开(公告)号：US11496449B2

公开(公告)日：2022-11-08

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: H04L9/40 ,  H04W76/15 ,  H04W92/20 ,  H04W92/04

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：US20220330344A1

公开(公告)日：2022-10-13

申请号：US17608789

申请日：2020-05-04

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

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

IPC: H04W74/08 ,  H04L5/00 ,  H04L27/26 ,  H04L1/18

Abstract: Methods and system may be used for collision detection for orthogonal frequency division multiple access (OFDMA)-based random access. A wireless transmit/receive unit (WTRU) may receive, from an access point (AP), a first trigger frame triggering random access using OFDMA. The WTRU may transmit, to the AP, in response to the first trigger frame a trigger-based frame including user specific control information in a signal (SIG) field. The WTRU may receive an acknowledgment/negative acknowledgment (ACK/NAK) message indicating that the trigger-based frame was successfully detected at the AP or that the trigger-based frame was not successfully detected at the AP. The WTRU receive, from the AP, a scheduling retransmission frame including rescheduling information for STAs with corrupted UL transmissions. On a condition that the scheduling retransmission frame indicates that a collision of the trigger-based frame was detected, the WTRU may retransmit the trigger-based frame

公开(公告)号：US20220322325A1

公开(公告)日：2022-10-06

申请号：US17621351

申请日：2020-06-25

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Patrick SVEDMAN ,  Qing LI ,  Mohamed AWADIN ,  Yifan LI ,  Allan Y. TSAI ,  Gudon ZHANG ,  Lakshmi R. IYER

IPC: H04W72/04 ,  H04W24/08 ,  H04W72/02

Abstract: An electronic device including a transceiver to communicate with a network; and circuitry. The circuitry is configured to perform beam failure detection on a monitored cell; detect a beam failure on the monitored cell; determine at least one new set of candidate beam reference signals (CB-RSs) from at least one set of CB-RS configured for the device; determine if any CB-RS in the at least one new set of CB-RSs meets a criterion, and in a case that any CB-RS in the at least one new set of CB-RSs meets the criterion: select a beam corresponding to a CB-RS in the new set that meets the criterion as the new beam, and indicate the selected new beam to the network; and in a case that no CB-RS in the new set of CB-RS meets a criterion, indicate to the network that no CB-RS in the new set meets the criterion.

公开(公告)号：US11456784B2

公开(公告)日：2022-09-27

申请号：US17323677

申请日：2021-05-18

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Hanging Lou ,  Alphan Sahin ,  Xiaofei Wang ,  Rui Yang ,  Oghenekome Oteri ,  Li-Hsiang Sun

IPC: H04B7/0452 ,  H04B7/06 ,  H04W84/12

Abstract: An AP/PCP may perform user selection/pairing/grouping based on a measurement of an analog transmission (e.g., signal to noise ratio (SNR) or signal to interference plus noise ratio (SINR)). The SNRs may be used, for example by the station, to determine best beams and/or beam pairs and/or worst beams and/or beam pairs. A station may feed back the best few beams and/or beam pairs for a Tx and Rx virtual antenna pair. A station may feed back the worst few beams for the Tx and Rx virtual antenna pair. The AP/PCP may receive the indication(s) and/or use the indication(s) to group the stations.

公开(公告)号：US20220294601A1

公开(公告)日：2022-09-15

申请号：US17824572

申请日：2022-05-25

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Janet A. Stern-Berkowitz ,  Pouriya Sadeghi ,  Nobuyuki Tamaki ,  Moon-il Lee ,  Ghyslain Pelletier ,  Li-Hsiang Sun ,  Marian Rudolf

IPC: H04L5/14 ,  H04L1/18 ,  H04W72/12

Abstract: A wireless transmit/receive unit (WTRU) may monitor a common physical downlink control channel (PDCCH) search space for a downlink control information (DCI) signal and a first radio network terminal identifier (RNTI). In an example, the DCI signal may include an uplink (UL)/downlink (DL) configuration indication. In a further example, the first RNTI may be associated with UL/DL configuration information. The WTRU may transmit UL data or receive DL data based on the received UL/DL configuration indication. In another example, the DCI may include a plurality of UL/DL configuration indications. In an additional example, a plurality of WTRUs may monitor the common PDCCH search space for the first RNTI. Also, the UL/DL configuration indication may indicate UL/DL configuration information on a symbol basis. Further, the WTRU may receive a second RNTI which is associated with the UL/DL configuration indication.

公开(公告)号：US20220294515A1

公开(公告)日：2022-09-15

申请号：US17828984

申请日：2022-05-31

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Oghenekome Oteri ,  Alphan Sahin ,  Hanqing Lou ,  Li-Hsiang Sun ,  Rui Yang

IPC: H04B7/06 ,  H04B7/0452 ,  H04W74/08

Abstract: Methods for multiple input-multiple output (MIMO) transmission are provided herein. A method may include sensing, using at least one of a plurality of antenna chains, radio frequency (RF) energy on a channel in a first time duration and may indicate the channel is busy. RF energy may be sensed on the channel using the at least one of the plurality of antenna chains in a second time duration and may indicate the channel is not busy. A method may include sending energy level sensed during the second time duration, a frame using the at least one of the plurality of antenna chains. The frame may indicate timing information associated with a MIMO transmission. The MIMO transmission may be sent using the indicated timing information and the at least one of the plurality of antenna chains.

公开(公告)号：US20220287034A1

公开(公告)日：2022-09-08

申请号：US17750617

申请日：2022-05-23

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Guodong Zhang ,  Jin Wang ,  Kyle Jung-Lin Pan ,  Jean-Louis Gauvreau ,  Stephen E. Terry

IPC: H04W72/04 ,  H04L1/16 ,  H04L1/18 ,  H04L1/00 ,  H04L5/00 ,  H04W72/12

Abstract: Methods, systems, and apparatus for supporting uplink Transmission Time Interval (TTI) bundling in Long Term Evolution (LTE) are provided. Methods, systems, and apparatus for signaling, activation/deactivation, and wireless transmit/receive unit (WTRU) behavior are also provided.

公开(公告)号：US11432300B2

公开(公告)日：2022-08-30

申请号：US16272161

申请日：2019-02-11

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Xiaofei Wang ,  Guodong Zhang

IPC: H04W72/08 ,  H04W74/08 ,  H04W84/12

Abstract: A station (STA) may include an antenna and a processor operatively coupled to the antenna. The processor and the antenna may be configured to send, to an access point (AP), a first message including an indication of one or more secondary channels in an operating band. The operating band may include a primary channel and the one or more secondary channels. The processor and the antenna may be further configured to receive, from the AP, a second message including an indication of a channel of the one or more secondary channels to use in a scheduled transmission period.

公开(公告)号：US20220264420A1

公开(公告)日：2022-08-18

申请号：US17735781

申请日：2022-05-03

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Sudheer A. Grandhi

IPC: H04W40/04 ,  H04W28/18 ,  H04W48/14 ,  H04W52/04

Abstract: A method and apparatus are disclosed for enabling communications in a wireless local area network (WLAN). A wireless transmit and receive unit (WTRU) may receive, from an access point (AP), a management frame comprising capability information. The capability information may comprise an indication of support for reception via non-contiguous channels. The WTRU may transmit, on a condition that reception via non-contiguous channels is supported, at least one data packet, to the AP, via multiple non-contiguous channels. The multiple non-contiguous channels may be used simultaneously.

公开(公告)号：US20220248343A1

公开(公告)日：2022-08-04

申请号：US17672329

申请日：2022-02-15

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Benoit Pelletier ,  Diana Pani ,  Joseph Levy ,  Fengjun Xi ,  Christopher R. Cave

IPC: H04W52/32 ,  H04L5/00 ,  H04W52/14 ,  H04W52/28 ,  H04W52/34 ,  H04W52/36

Abstract: A wireless transmit/receive unit (WTRU) may utilize pre-configured rules for scaling power levels. Channels may be grouped based on a type of data to be transmitted. A power level of a channel from a group may be scaled using the pre-configured rules. A power level of a channel of a supplementary carrier may be scaled before another channel of a non-supplementary carrier.