公开(公告)号：US20220312493A1

公开(公告)日：2022-09-29

申请号：US17807323

申请日：2022-06-16

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Tao Luo ,  Xiaoxia Zhang ,  Durga Prasad Malladi

IPC: H04W74/08 ,  H04L1/00 ,  H04W74/00 ,  H04L5/00 ,  H04W24/10 ,  H04W56/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive, from a base station, a downlink transmission in a radio frequency spectrum band and may identify reference resources in the downlink transmission for computing a channel state information (CSI) report. The UE may generate the CSI report based at least in part on the identified reference resources and transmit, in the radio frequency spectrum band, the CSI report in a random access request message to the base station. The base station may receive the request message and identify CSI associated with the band based at least in part on the CSI report included in the random access request message. The base station may transmit, to the UE, a random access response message based at least in part on the identified CSI in the radio frequency spectrum band.

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.

公开(公告)号：US11337246B2

公开(公告)日：2022-05-17

申请号：US16579453

申请日：2019-09-23

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Shimman Arvind Patel ,  Wanshi Chen ,  Naga Bhushan ,  Yongbin Wei ,  Hao Xu ,  Aleksandar Damnjanovic ,  Tingfang Ji ,  Durga Prasad Malladi ,  Srinivas Yerramalli ,  Peter Gaal

IPC: H04W74/00 ,  H04L5/00 ,  H04W56/00 ,  H04W74/08 ,  H04L5/14 ,  H04L27/26

Abstract: Techniques are described for wireless communication. A first method includes transmitting a first signal to indicate accessing a first channel in a radio frequency spectrum band, and transmitting information with the first signal in the radio frequency spectrum band. A second method includes winning contention to access a radio frequency spectrum band, and after the winning contention to access the radio frequency spectrum band, transmitting a first signal to align a starting point of a second signal with a reference boundary associated with the radio frequency spectrum band. A third method includes winning contention to access a radio frequency spectrum band during a first frame period, the first frame selected from a plurality of different frame periods, and transmitting a signal at a periodicity during one or more subframes of the first frame period for each of the plurality of different frame periods.

公开(公告)号：US20220132515A1

公开(公告)日：2022-04-28

申请号：US17571293

申请日：2022-01-07

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Jing Sun ,  Xiaoxia Zhang ,  Kapil Bhattad

IPC: H04W72/08 ,  H04L61/5069 ,  H04W4/08 ,  H04W72/02 ,  H04W72/04 ,  H04W72/12 ,  H04W74/00 ,  H04W28/02 ,  H04B1/10

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, a group identifier of the UE. The UE may receive, from the base station, an indication of one or more group identifiers associated with scheduled communications with the base station during a time period. The UE may contend, based at least in part on the group identifier of the UE and the one or more group identifiers received from the base station, for access to a set of autonomous uplink (AUL) resources during the time period. The UE may perform, based at least in part on the contending, an AUL transmission to the base station using the set of autonomous uplink resources.

公开(公告)号：US20220065978A1

公开(公告)日：2022-03-03

申请号：US17357857

申请日：2021-06-24

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Mukesh Kumar ,  Srinivas Yerramalli

IPC: G01S5/02 ,  H04L5/00 ,  H04W72/04 ,  H04W24/10

Abstract: A user equipment uses positioning reference signals (PRS) and non-PRS signals for position measurements. The non-PRS signals may be downlink and sidelink signals wherein the non-PRS are downlink or sidelink signals that are transmitted for purposes unrelated to positioning. Positioning assistance data is provided to the UE that associates the non-PRS signals with PRS-IDs. The association of the non-PRS signals to the PRS-IDs may be provided by a location server or serving base station. After performing positioning measurements using non-PRS signals, the UE reports measurement information using the PRS-IDs to identify the non-PRS signals used to generate the positioning measurements.

公开(公告)号：US11252703B2

公开(公告)日：2022-02-15

申请号：US16418280

申请日：2019-05-21

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Wanshi Chen ,  Peter Gaal ,  Juan Montojo

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/12 ,  H04L1/18 ,  H04W16/14 ,  H04W24/10

Abstract: Uplink control channel transmission in a shared radio frequency spectrum band may be transmitted using different uplink resources UCI based on a format of uplink control information (UCI) to be transmitted in the uplink control channel transmission. Different time resources, frequency resources, or combinations thereof, for the transmission of UCI by a UE may be provided by a base station and selected by the UE based on a UCI format. The resources to be used for UCI transmission may semi-statically configured, or dynamically indicated to a UE. Uplink transmissions may be configured in interlaces of frequency resources, with each interlace having one or more segments, and a base station may configure different segments for transmission of different format UCI. In some cases, different subframes, or different component carriers, may be configured for different formats of UCI.

公开(公告)号：US20220030593A1

公开(公告)日：2022-01-27

申请号：US17375905

申请日：2021-07-14

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Arumugam Chendamarai Kannan ,  Vasanthan Raghavan ,  Jing Sun ,  Vinay Chande ,  Giovanni Chisci ,  Tao Luo ,  Wooseok Nam ,  Xiaoxia Zhang

IPC: H04W72/04 ,  H04W72/12 ,  H04L5/00 ,  H04L25/02

Abstract: Methods, systems, and devices for wireless communications are described. To support communications across a wideband, a base station and user equipment (UE) may communicate across the wideband using a set of sub-bands that span the carrier bandwidth (e.g., the wideband). In some cases, the UE may transmit, to the base station, an indication of a capability of the UE to communicate a wideband communication with the base station via the set of sub-band based communications with the base station. The UE may receive, from the base station (and, in some cases based on the capability of the UE), a configuration for communicating with the base station in the carrier bandwidth using the set of sub-bands. Then, the UE may communicate with the base station in the carrier bandwidth using one or more of the set of sub-bands in accordance with the configuration.