公开(公告)号：US20250070836A1

公开(公告)日：2025-02-27

申请号：US18914901

申请日：2024-10-14

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Yuan Sheng Jin ,  Fengjun Xi ,  Pengfei Xia ,  Nirav B. Shah ,  Hanqing Lou ,  Robert L. Olesen ,  Oghenekome Oteri

IPC: H04B7/06 ,  H04B7/0452 ,  H04L25/02 ,  H04L25/03 ,  H04L27/26 ,  H04W84/12

Abstract: Systems, methods and instrumentalities are disclosed to enable time domain null-forming. An access point (AP) may be configured to send a channel training request to a station (STA). The AP may be configured to receive a channel training packet in response to the channel training request. The channel training packet may include a legacy long training field (LTF). The AP may estimate the channel. The channel estimation may be computed using the legacy LTF. The AP may compute a null-forming vector using the channel estimation. The AP may use the null-forming vector to precode the entire packet.

公开(公告)号：US12155450B2

公开(公告)日：2024-11-26

申请号：US18197198

申请日：2023-05-15

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Kyle Jung-Lin Pan ,  Fengjun Xi ,  Afshin Haghighat ,  Oghenekome Oteri ,  Chunxuan Ye ,  Frank La Sita ,  Robert Olesen ,  Moon-il Lee

IPC: H04B7/08 ,  H04B7/06 ,  H04B17/327 ,  H04W24/10 ,  H04B7/0452

Abstract: A WTRU may include a memory and a processor. The processor may be configured to receive beam grouping information from a gNB or transmission and reception point (TRP). The beam grouping information may indicate a group of beams that the WTRU may report using group-based reporting. The group-based reporting may be a reduced level of reporting compared to a beam-based reporting. The group-based report may include measurement information for a representative beam. The representative beam may be one of the beams in the group or represents an average of the beams in the group. Alternatively, the representative beam may be a beam that has a maximum measurement value compared to other beams in the group. The group-based report may include a reference signal received power (RSRP) for the representative beam and a differential RSRP for each additional beamin the beam group.

公开(公告)号：US20240356659A1

公开(公告)日：2024-10-24

申请号：US18758988

申请日：2024-06-28

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Robert L. Olesen ,  Rui Yang ,  Moon-il Lee ,  Alphan Sahin ,  Hanqing Lou ,  Fengjun Xi ,  Frank La Sita ,  Byung K. Yi ,  Janet A. Stern-Berkowitz

IPC: H04B15/02 ,  H04B1/10 ,  H04B1/403 ,  H04B7/0413 ,  H04B15/00 ,  H04B17/318 ,  H04W16/14 ,  H04W88/06

CPC classification number: H04B15/02 ,  H04B1/10 ,  H04B1/1027 ,  H04B1/406 ,  H04B7/0413 ,  H04B15/00 ,  H04B17/318 ,  H04W16/14 ,  H04W88/06

Abstract: Systems, methods, and instrumentalities are disclosed for transmitting a message. For example, a first radio access technology (RAT) and/or a second RAT may be determined. The first RAT may be determined for reception of data. The second RAT may be determined for the reception of the data, perhaps for example based on an indication received via the first RAT. The data may be received via a first node associated with the first RAT and a second node associated with the second RAT.

公开(公告)号：US12040852B2

公开(公告)日：2024-07-16

申请号：US18141686

申请日：2023-05-01

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Wei Chen ,  Fengjun Xi ,  Kyle Jung-Lin Pan

IPC: H04B7/0408 ,  H04B7/0404 ,  H04B7/06 ,  H04W88/02

CPC classification number: H04B7/0408 ,  H04B7/0404 ,  H04B7/0617 ,  H04W88/02

Abstract: Methods and apparatus for beam management are disclosed. A WTRU may include a plurality of antenna panels, each antenna panel comprising a plurality of antennas configured to transmit on directional transmit (TX) beams. The WTRU may send, to a transmission reception point (TRP), antenna panel capability information for the plurality of antenna panels and receive a reference signal (RS) configuration for configuring RS resource sets. The WTRU may send an RS transmission trigger frame identifying triggered RS resource sets from the configured RS resource sets. The WTRU may identify a set of antenna panels to be used with the triggered RS resource sets. The WTRU may determine an UL TX beam sweeping mode and an association between the triggered RS resources sets and the set of antenna panels. The WTRU may perform UL beam sweeping using the triggered RS resource sets and associated set of antenna panels.

公开(公告)号：US20240214117A1

公开(公告)日：2024-06-27

申请号：US18600174

申请日：2024-03-08

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Kyle Jung-Lin Pan ,  Fengjun Xi ,  Robert L. Olesen ,  Chunxuan Ye ,  Janet A. Stern-Berkowitz

IPC: H04L1/00 ,  H03M13/09 ,  H04B7/06 ,  H04W48/10 ,  H04W74/0833

CPC classification number: H04L1/0067 ,  H03M13/09 ,  H04B7/0617 ,  H04B7/0623 ,  H04B7/0695 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/007 ,  H04L1/0072 ,  H04W74/0833 ,  H04W48/10

Abstract: A method for transmitting system information on a PBCH is described herein. A transmission/reception point (TRP) may generate a concatenated master information block (MIB) transport block that includes information bits associated with system bandwidth information, timing information, system frame number (SFN), a beam sweeping configuration, and a control resource set (CORESET). The TRP may then attach at least 16 cyclic redundancy check (CRC) bits to the concatenated MIB and then prioritize the concatenated MIB and the at least 16 CRC bits based on content. The TRP may then perform channel coding of the prioritized concatenated MIB and the at least 16 CRC bits to produce coded bits using at least one polar encoder with a coding rate that is less than 1/3, perform rate matching via repetition on the coded bits, and then transmit the rate matched, coded bits on the PBCH of a radio frame.

公开(公告)号：US20240048272A1

公开(公告)日：2024-02-08

申请号：US18483202

申请日：2023-10-09

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Chunxuan Ye ,  Nirav B. Shah ,  Fengjun Xi ,  Kyle Jung-Lin Pan

IPC: H04L1/00 ,  H03M13/11 ,  H03M13/00 ,  H04L1/1812 ,  H04L1/1867

CPC classification number: H04L1/0057 ,  H04L1/0069 ,  H04L1/005 ,  H03M13/116 ,  H03M13/6306 ,  H03M13/6393 ,  H04L1/1819 ,  H03M13/1102 ,  H04L1/0041 ,  H04L1/1812 ,  H04L1/1867 ,  H03M13/13

Abstract: A method may comprise receiving a first signal comprising first LDPC bits including systematic bits and parity bits and transmitting information indicating that the first signal was incorrectly received. A second signal comprising second LDPC bits may be received in response to the transmitting. The second signal may include LDPC bits according to a lifting size of an LDPC base graph.

公开(公告)号：US11844105B2

公开(公告)日：2023-12-12

申请号：US17845617

申请日：2022-06-21

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Kyle Jung-Lin Pan ,  Fengjun Xi ,  Chunxuan Ye

IPC: H04W74/00 ,  H04W56/00 ,  H04W74/08 ,  H04W72/30

CPC classification number: H04W74/008 ,  H04W56/001 ,  H04W72/30 ,  H04W74/0833

Abstract: Methods, systems, and devices for addressing collisions of possible random access channel (RACH) occasions. A wireless transmit receive unit (WTRU) may receive an indication of semi-static UL/DL information including configuration of RACH occasions in a remaining minimum system information (RMSI) and an indication of one or more actually transmitted synchronization signal (SS) blocks. The WTRU may then assess whether there are RACH occasions based on the configuration information and determine whether any of the RACH occasions are valid, wherein the RACH occasion may be valid based on Based on the RACH occasion is after all actually transmitted SS blocks indicated and/or whether an SS block override is disabled or enabled. The WTRU may transmit a RACH in one or more of the RACH occasions that have been determined to be valid.

公开(公告)号：US20230396361A1

公开(公告)日：2023-12-07

申请号：US18453534

申请日：2023-08-22

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Kyle Jung-Lin Pan ,  Fengjun Xi

IPC: H04L1/00 ,  H04J11/00 ,  H04L69/324 ,  H04L5/00

CPC classification number: H04L1/0061 ,  H04J11/0073 ,  H04L1/0072 ,  H04L69/324 ,  H04L5/0053 ,  H04J11/0076

Abstract: Systems, methods, and instrumentalities are disclosed for error check-based synchronization. Physical Broadcast Channel (PBCH) data may be determined. A scrambling (e.g., a first scrambling) of the PBCH data may be scrambled via a sequence (e.g., a first sequence). The first sequence may be based on a cell ID and/or timing information. Error check bits may be attached to the scrambled PBCH data and to the timing information. The error check bits may include one or more cyclic redundancy check (CRC) bits. The scrambled PBCH data, the timing information (e.g., the unscrambled timing information), and/or the attached error check bits may be polar encoded. The polar encoding may result in polar encoded bits. A scrambling (e.g., a second scrambling) of the polar encoded bits may be scrambled via a sequence (e.g., a second sequence). The first sequence and the second sequence may be different. The polar encoded bits may be transmitted.

公开(公告)号：US20230362968A1

公开(公告)日：2023-11-09

申请号：US18345237

申请日：2023-06-30

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Fengjun Xi ,  Wei Chen ,  Kyle Jung-Lin Pan ,  Moon-il Lee ,  Chunxuan Ye

IPC: H04W72/53 ,  H04W76/27 ,  H04B7/06 ,  H04B7/08 ,  H04L5/00 ,  H04W24/08 ,  H04W80/02 ,  H04W72/23

CPC classification number: H04W72/53 ,  H04W76/27 ,  H04B7/0626 ,  H04B7/088 ,  H04L5/0051 ,  H04L5/0092 ,  H04W24/08 ,  H04W80/02 ,  H04W72/23

Abstract: A wireless transmit/receive unit (WTRU) may receive a first downlink control information (DCI) in a first slot. The first DCI may include an indication of a first quasi co-location (QCL) reference. The WTRU may receive a second DCI in a second slot. The second DCI may include scheduling information for a first physical downlink shared channel (PDSCH) transmission. The WTRU may receive the first PDSCH transmission in accordance with the first QCL reference indicated by the first DCI received in the first slot and in accordance with the scheduling information for the first PDSCH transmission included in the second DCI received in the second slot.

公开(公告)号：US11770220B2

公开(公告)日：2023-09-26

申请号：US17171499

申请日：2021-02-09

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Erdem Bala ,  Alphan Sahin ,  Moon-il Lee ,  Mihaela C. Beluri ,  Rui Yang ,  Janet A. Stern-Berkowitz ,  Fengjun Xi ,  Afshin Haghighat

IPC: H04W84/04 ,  H04L5/00 ,  H04J11/00

CPC classification number: H04L5/0007 ,  H04J11/00 ,  H04L5/0048 ,  H04L5/0091 ,  H04W84/042

Abstract: Systems, methods, and instrumentalities are disclosed for physical (PHY) layer multiplexing of different types of traffic in 5G systems. A device may receive a communication. The communication may include a first traffic type. The device may monitor the communication for an indication that the communication includes a second traffic type that is multiplexed with and/or punctures the first traffic type. An indicator received in the communication and detected by the monitoring may indicate where the second traffic type is located in the communication. The first traffic type and the second traffic type may be multiplexed at a resource element (RE) level. For example, a first traffic type may be punctured by a second traffic type at the RE level. The device may decode one or more of the first or second traffic types in the communication based on the indication.