公开(公告)号：US20220295539A1

公开(公告)日：2022-09-15

申请号：US17686243

申请日：2022-03-03

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Yi Huang ,  Jing Sun ,  Xiaoxia Zhang

IPC: H04W72/14 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communication at a user equipment (UE) are described. A first network node may receive, from a second network node, downlink control information based on monitoring at least one of a first physical downlink control channel candidate or a second physical downlink control channel candidate that are linked for physical downlink control channel repetition. In some examples, the second physical downlink control channel candidate may end later in time than the first physical downlink control channel candidate. The first network node may identify an absence of a scheduled physical downlink shared channel based on the downlink control information. The first network node may then transmit, to the base station, a feedback message in response to the downlink control information at least a threshold number of time units after the second physical downlink control channel candidate.

公开(公告)号：US11445552B2

公开(公告)日：2022-09-13

申请号：US16735370

申请日：2020-01-06

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Andrei Dragos Radulescu ,  Ananta Narayanan Thyagarajan ,  Pravjyot Singh Deogun ,  Xiaoxia Zhang ,  Kapil Bhattad

IPC: H04W4/00 ,  H04W74/08 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may obtain a signal received over a wireless channel, the signal configuring one or more random access parameters for the wireless channel. The UE may obtain a downlink control signal over the wireless channel, wherein the downlink control signal comprises an indication of a trigger and a location of one or more random access occasions for the UE. The UE may output, based at least in part on the downlink control signal, a random access signal for transmission on the wireless channel during at least one of the one or more random access occasions and according to the one or more random access parameters and the location. The UE may establish a connection with a base station based at least in part on the random access signal.

公开(公告)号：US11438930B2

公开(公告)日：2022-09-06

申请号：US16738957

申请日：2020-01-09

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Tao Luo ,  Sony Akkarakaran ,  Jing Sun

IPC: H04L1/18 ,  H04W74/08 ,  H04W56/00 ,  H04B7/0417 ,  H04W72/04 ,  H04W74/00

Abstract: Methods, systems, and devices for a two-step random access channel (RACH) procedure are described that may enable a user equipment (UE) and a base station to perform a two-step RACH procedure and begin communications using an accurate timing advance (TA). The UE may send a first RACH message of the two-step RACH procedure to the base station. The base station may determine an accurate TA based on the contents of the first RACH message. The base station may prepare a downlink control message and a corresponding second RACH message to send to the UE. The base station may include scheduling information for the second message and an indication of the TA in the downlink control message. The base station may identify one or more data fields in bits within the downlink control message reserved for information other than the TA and replace the bits with the TA indication.

公开(公告)号：US11432229B2

公开(公告)日：2022-08-30

申请号：US16592517

申请日：2019-10-03

Applicant: QUALCOMM Incorporated

Inventor： Ozcan Ozturk ,  Andrei Dragos Radulescu ,  Aleksandar Damnjanovic ,  Xiaoxia Zhang ,  Jing Sun

IPC: H04W48/12 ,  H04W72/08 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A base station may identify a globally unique set of characteristics associated with a cell associated with the base station. The base station may generate a signature value unique to the cell based at least in part on a hash of the globally unique set of characteristics associated with the cell. The base station may transmit a control signal over a channel of a shared radio frequency spectrum band, the control signal comprising a physical cell identifier of the cell and the signature value.

公开(公告)号：US11431430B2

公开(公告)日：2022-08-30

申请号：US16711768

申请日：2019-12-12

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Tao Luo ,  Tamer Kadous ,  Juan Montojo ,  Xiao Feng Wang ,  Sony Akkarakaran

IPC: H04J11/00 ,  H04W48/12 ,  H04L5/00 ,  H04W72/12

Abstract: User equipment associated with a legacy network may utilize a bottom-to-top search technique to identify relevant control channel samples. Generating a control channel that is configured for the bottom-to-top search technique may lead to poor performance in a single-carrier waveform, which may be disadvantageous as networks move toward New Radio. In some aspects, described herein, a base station generates a control channel that is configured to minimize gaps in the control channel, and a user equipment performs a top-to-bottom search technique to identify relevant control channel samples. By using the top-to-bottom search technique, degradation of single-carrier waveforms is reduced and efficiency is improved.

公开(公告)号：US11425727B2

公开(公告)日：2022-08-23

申请号：US16909442

申请日：2020-06-23

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo Park ,  Mostafa Khoshnevisan ,  Wooseok Nam ,  Tao Luo ,  Jing Sun ,  Xiaoxia Zhang ,  Arumugam Chendamarai Kannan ,  Yisheng Xue

IPC: H04W56/00 ,  H04W72/04 ,  H04W8/24 ,  H04W52/02 ,  H04W76/27 ,  H04W80/02 ,  H04W76/15

Abstract: A user equipment (UE) transmits, to a base station, a transmission configuration indication (TCI) report indicating associations between a plurality of TCIs and one or more UE panels of the UE; receives, from the base station in response to the TCI report, a TCI configuration message indicating a first set of TCI of the plurality of TCIs for a physical downlink control channel (PDCCH) transmission; and skips monitoring, based at least in part on the TCI configuration message, a control resource set (CORESET) associated with a second set of TCI of the plurality of TCIs.

公开(公告)号：US11411791B2

公开(公告)日：2022-08-09

申请号：US16927971

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: H04J11/00 ,  H04L27/26 ,  H04B7/06 ,  H04L5/00 ,  H04W56/00 ,  H04W72/04

Abstract: Aspects relate to implementing multiplexing with a single carrier waveform. In some examples, intra-symbol multiplexing of data and other information on a single carrier symbol may be implemented utilizing pre-discrete Fourier transform (DFT) multiplexing. In addition, time domain rate-matching may be performed on the data to rate-match the data around the other information based on a number of usable samples in the time domain within the symbol for the data.

公开(公告)号：US11405888B2

公开(公告)日：2022-08-02

申请号：US16908282

申请日：2020-06-22

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Jing Sun ,  Xiaoxia Zhang

IPC: H04L5/00 ,  H04W64/00 ,  H04W74/08 ,  H04W16/14 ,  H04W80/02 ,  H04W72/04

Abstract: Disclosed are techniques for wireless communication. In an aspect, a transmitter device performs, at a first time during a positioning session, a clear channel assessment (CCA) procedure on each of a plurality of subbands in a shared spectrum frequency range, and transmits, at a second time during the positioning session, positioning reference signals on a subset of subbands of the plurality of subbands that cleared the CCA procedure.

公开(公告)号：US20220240271A1

公开(公告)日：2022-07-28

申请号：US17720831

申请日：2022-04-14

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/12 ,  H04W24/10

Abstract: Wireless communications systems and methods related to communicating in a communication medium are provided. A base station (BS) receives from a user equipment (UE), feedback information of the UE. The BS determines a schedule for the UE. The schedule includes a scheduling duty cycle based on the feedback information of the UE. The BS communicates with the UE, a communication signal based on the schedule.

公开(公告)号：US20220240252A1

公开(公告)日：2022-07-28

申请号：US17721646

申请日：2022-04-15

Applicant: QUALCOMM Incorporated

Inventor： Qingjiang Tian ,  Xiaoxia Zhang ,  Jing Sun ,  Kapil Bhattad ,  Srinivas Yerramalli ,  Chih-Hao Liu

IPC: H04W72/04 ,  H04W28/02

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for a base station transmitting to a user equipment (UE) a partial bandwidth configuration for uplink transmissions, where the partial bandwidth configuration may indicate a channel interlace and a portion of a channel bandwidth, for example, for autonomous uplink (AUL) transmissions. The base station may also transmit to the UE an AUL configuration including a group identifier. The UE may determine a starting offset with respect to an AUL subframe for a partial bandwidth transmission based on the group identifier. In some cases, different UEs may be grouped into groups of UEs allocated non-overlapping resources, and UEs allocated overlapping resources may have different starting offsets to begin transmitting. According to the determined starting offset, the UE may perform the partial bandwidth transmission over the channel interlace and the portion of the channel bandwidth.