公开(公告)号：US11576164B2

公开(公告)日：2023-02-07

申请号：US16948899

申请日：2020-10-05

Applicant: QUALCOMM Incorporated

Inventor： Wooseok Nam ,  Jing Sun ,  Tao Luo ,  Xiaoxia Zhang ,  Zhifei Fan ,  Srinivas Yerramalli ,  Sungwoo Park ,  Akula Reddy ,  Ahmed Abdelaziz Ibrahim Abdelaziz Zewail

IPC: H04W4/00 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station (BS), an indication of a plurality of sets of slot format indicator parameters. The UE may receive, from the BS, a communication that identifies a set of slot format indicator parameters from the plurality of sets of slot format indicator parameters. Numerous other aspects are provided.

公开(公告)号：US11570728B2

公开(公告)日：2023-01-31

申请号：US17248231

申请日：2021-01-14

Applicant: QUALCOMM Incorporated

Inventor： Vinay Chande ,  Arumugam Chendamarai Kannan ,  Srinivas Yerramalli ,  Xiaoxia Zhang ,  Tao Luo

IPC: H04W52/38 ,  H04W52/24

Abstract: Wireless communications systems and methods related to listen-before-talk (LBT) are provided. A first wireless communication device performs an LBT in a channel to contend for a first transmission opportunity (TXOP). The first wireless communication device receives, from a second wireless communication device, a first reservation signal reserving a second TXOP in the channel in response to the LBT, the second TXOP being different from the first TXOP. The first wireless communication device adjusts a signal detection threshold based on transmit power information associated with at least one of the first wireless communication device, the second wireless communication device, first data traffic to be communicated in the first TXOP, or second data traffic to be communicated in the second TXOP. The first wireless communication device determines whether to yield channel access during the second TXOP based on a signal measurement of the first reservation signal and the adjusted signal detection threshold.

公开(公告)号：US11552691B2

公开(公告)日：2023-01-10

申请号：US17071596

申请日：2020-10-15

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo Park ,  Tao Luo ,  Arumugam Chendamarai Kannan ,  Xiaoxia Zhang ,  Wooseok Nam ,  Srinivas Yerramalli ,  Zhifei Fan ,  Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Akula Reddy ,  Jing Sun

IPC: H04B7/06 ,  H04W76/19 ,  H04W56/00 ,  H04L5/00

Abstract: A method of wireless communication, the method including: communicating, by a first wireless communication device with a second wireless communication device, communication signals using a first beam; detecting a failure of the first beam; in response to the failure of the first beam, determining that the first beam is associated with a first beam recovery group of a plurality of beam recovery groups; transmitting a beam failure recovery signal to the second wireless communication device based on determining that the first beam is associated with the first beam recovery group; and communicating, by the first wireless communication device with the second wireless communication device, the communication signals at least in part using a second beam.

公开(公告)号：US11540257B2

公开(公告)日：2022-12-27

申请号：US16359247

申请日：2019-03-20

Applicant: QUALCOMM Incorporated

Inventor： Qingjiang Tian ,  Xiaoxia Zhang ,  Jing Sun ,  Srinivas Yerramalli

IPC: H04L1/16 ,  H04L1/18 ,  H04L5/00 ,  H04W24/10 ,  H04W28/02 ,  H04W28/06 ,  H04W72/02 ,  H04W72/04 ,  H04W74/00 ,  H04W74/08 ,  H04W88/02 ,  H04W88/08 ,  H04W92/10

Abstract: Wireless communications systems and methods related to communicating uplink control information (UCI) in a network operating over multiple aggregated unlicensed carriers are provided. A first wireless communication device communicates, with a second wireless communication device, a downlink communication signal. The first wireless communication device communicates, with the second wireless communication device, an unscheduled uplink communication signal including an uplink report associated with the downlink communication signal, the unscheduled uplink communication signal communicated based on a listen-before-talk (LBT) procedure. The uplink report includes at least one of an acknowledgement (ACK) for data in the downlink communication signal, a negative-acknowledgement (NACK) for the data in the downlink communication signal, or channel information based at least on the downlink communication signal.

公开(公告)号：US11510107B2

公开(公告)日：2022-11-22

申请号：US16927927

申请日：2020-07-13

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Jing Sun ,  Tao Luo ,  Srinivas Yerramalli ,  Zhifei Fan ,  Mostafa Khoshnevisan ,  Wanshi Chen ,  Juan Montojo ,  Peter Gaal ,  Arumugam Chendamarai Kannan

IPC: H04W4/00 ,  H04W28/20 ,  H04W72/04 ,  H04L5/00

Abstract: Aspects relate to implementing multiplexing with a single carrier waveform. In some examples, a total bandwidth may be divided into a plurality of bandwidth parts (BWPs), each including a plurality of tones. Each of the BWPs may further be divided into two or more interlaces, where each interlace includes a respective number of interleaved tones. A base station may assign each of a plurality of UEs a respective set of one or more interlaces within at least one BWP for multiplexing communication with the base station.

公开(公告)号：US11496194B2

公开(公告)日：2022-11-08

申请号：US17131560

申请日：2020-12-22

Applicant: QUALCOMM Incorporated

Inventor： Mohammed Hirzallah ,  Arumugam Chendamarai Kannan ,  Srinivas Yerramalli ,  Xiaoxia Zhang ,  Vasanthan Raghavan ,  Tao Luo

IPC: H04B7/06 ,  H04B7/08

Abstract: The present disclosure relates to methods and devices for wireless communication of an apparatus, e.g., a UE and/or a base station. In one aspect, the apparatus may measure a plurality of beams from a base station or a UE, the plurality of beams corresponding to a plurality of subbands of a wideband channel. The apparatus may also determine whether the plurality of beams include one or more candidate beam groups for each subband of the plurality of subbands. Additionally, the apparatus may transmit, upon determining that the plurality of beams include one or more candidate beam groups for at least one subband of the plurality of subbands, an indication of the one or more candidate beam groups for the at least one subband of the plurality of subbands.

公开(公告)号：US11483794B2

公开(公告)日：2022-10-25

申请号：US16989745

申请日：2020-08-10

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Srinivas Yerramalli ,  Taesang Yoo ,  Junyi Li ,  Yongbin Wei ,  Sudhir Kumar Baghel ,  Shailesh Patil ,  Kapil Gulati ,  Chang-Sik Choi

IPC: H04W64/00 ,  H04W4/029 ,  H04W4/40 ,  H04W74/08 ,  G01S11/04 ,  G01S5/02 ,  H04L5/00

Abstract: This disclosure provides systems, methods and apparatuses for wireless communication that may allow a user equipment (UE) to determine its relative position and distances to other UEs more accurately than standard vehicle-to-everything (V2X) communications allow. In some implementations, a UE (or other wireless communication device) participating in a positioning operation may transmit and receive positioning signals on an unlicensed radio band, and may transmit and receive non-positioning signals on a V2X channel (or on another suitable channel) of a radio access network (RAN). The positioning signals may include positioning reference signals (PRSs) associated with observed time difference of arrival (OTDOA) positioning operations, ranging signals associated with round-trip time (RTT) positioning operations, or other suitable signals from which the position of the UE can be determined.

公开(公告)号：US11405926B2

公开(公告)日：2022-08-02

申请号：US16802292

申请日：2020-02-26

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Xiaoxia Zhang ,  Vinay Chande ,  Srinivas Yerramalli ,  Arumugam Chendamarai Kannan

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

Abstract: Aspects are provided that allow a base station to use visual information of interfering UEs for optimizing shared channel access and beam and interference management and tracking. The base station may obtain visual information of a UE. The base station may then access a shared channel to communicate with the UE based on the visual information. After accessing the shared channel, the base station may communicate with the UE over the shared channel using one or more beams based on the visual information. Efficient channel access and communication in mmW environments may thereby be achieved.

公开(公告)号：US11405909B2

公开(公告)日：2022-08-02

申请号：US16868330

申请日：2020-05-06

Applicant: QUALCOMM Incorporated

Inventor： Zhifei Fan ,  Jing Sun ,  Xiaoxia Zhang ,  Tao Luo ,  Srinivas Yerramalli ,  Wooseok Nam ,  Sungwoo Park ,  Arumugam Chendamarai Kannan

IPC: H04W72/04 ,  H04W76/11 ,  H04B7/06 ,  H04L1/00 ,  H04L5/00 ,  H04L25/02

Abstract: A base station transmits a first downlink control information (DCI) portion in a physical downlink control channel (PDCCH), wherein the first DCI portion indicates a second DCI portion. The base station jointly encodes multiple component DCIs, each of the component DCIs providing a resource allocation in combination with the first DCI portion. The apparatus transmits the second DCI portion comprising the jointly encoded multiple component DCIs in a physical downlink shared channel (PDSCH).

公开(公告)号：US11388605B2

公开(公告)日：2022-07-12

申请号：US16871803

申请日：2020-05-11

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Xiaoxia Zhang ,  Taesang Yoo

IPC: H04W16/14 ,  H04W72/04 ,  H04L5/00 ,  H04B7/06 ,  H04W74/08

Abstract: To improve overall throughput and reliability of communications for a user equipment (UE) on a shared radio spectrum, the UE may share an acquired transmission opportunity (TxOP) with multiple transmission receive points (TRPs) or peer UEs. In an aspect of the disclosure, a method, and an apparatus are provided. The apparatus is configured to trigger at least one TRP or at least one peer UE to share an acquired TxOP, and receive downlink/uplink transmissions from the at least one TRP or peer UE during the TxOP based in part on a listen before talk (LBT) indication and a TxOP sharing mode. The apparatus is also configured to obtain the TxOP via an LBT procedure and to adjust a contention window (CW) of the LBT procedure based on a success-failure ratio the downlink/uplink transmissions from the at least one TRP or peer UE.