公开(公告)号：US10924167B2

公开(公告)日：2021-02-16

申请号：US16261166

申请日：2019-01-29

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Renqiu Wang ,  Seyong Park ,  Naga Bhushan ,  Jay Kumar Sundararajan ,  Jing Jiang ,  Yi Huang ,  Joseph Binamira Soriaga ,  Tingfang Ji

IPC: H04B7/0456 ,  H04J13/00 ,  H04L27/26 ,  H04B1/69 ,  H04W72/10 ,  H04J11/00 ,  H04J13/10

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device such as a user equipment (UE) may identify a codebook matrix having a number of rows equal to a first number and a number of columns equal to a second number, the first number equal to a number of UEs supported for communication with a base station, and the second number equal to a sequence length of a set of UE specific signature sequences, where the rows of the codebook matrix comprise a Welch bound equality (WBE) achieving vector set. The UE may identify a UE specific signature sequence based at least in part on a mapping between an identifier associated with the UE to one or more rows of the codebook matrix, and communicate with the base station based at least in part on the UE specific signature sequence.

公开(公告)号：US20200382253A1

公开(公告)日：2020-12-03

申请号：US16859402

申请日：2020-04-27

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Yi Huang ,  Joseph Binamira Soriaga ,  Tao Luo

IPC: H04L5/00 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for handling delayed sounding reference signal (SRS) transmission. A user equipment may be configured to receive, from a network, at least one SRS parameter and a first downlink control information (DCI), wherein the first DCI includes a first request for transmission of a first SRS; identify a first slot for transmission of the first SRS based on said at least one SRS parameter and the first DCI; determine that the first slot is not available for transmission of the first SRS; identify a second slot for transmission of the first SRS in response to the determining that the first slot is not available for transmission of the first SRS; determine a maximum SRS delay associated with the first SRS; and determine whether to transmit the first SRS in the second slot based on the maximum SRS delay.

公开(公告)号：US10826741B2

公开(公告)日：2020-11-03

申请号：US16552943

申请日：2019-08-27

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Peter Gaal ,  Yi Huang ,  Renqiu Wang ,  Hao Xu ,  Tao Luo

IPC: H04L25/03 ,  H04L27/26 ,  H04B7/06 ,  H04J11/00

Abstract: Adjacent channel leakage-power ratio (ACLR) can be reduced at a transmitter of a device. A modulated signal can be mapped into a plurality of tone sets in a frequency domain, wherein the plurality of tone sets include a first, a second, and a third set of tones. The first and the third set of tones can be converted in the frequency domain to a fourth and a fifth set of tones, respectively, in a time domain. A zero padding of one or more symbols associated with the fourth and the fifth set of tones can be performed to output a sixth and a seventh set of tones, respectively. The sixth and the seventh set of tones can be converted to an eighth and a ninth set of tones, respectively, in the frequency domain. The eighth and the ninth set of tones can be processed for transmitting to another wireless device.

公开(公告)号：US20200322120A1

公开(公告)日：2020-10-08

申请号：US16838410

申请日：2020-04-02

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Yi Huang ,  Seyedkianoush Hosseini ,  Seyed Ali Akbar Fakoorian

IPC: H04L5/02 ,  H04W28/04 ,  H04W72/12 ,  H04L1/18 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit a downlink control transmission and multiple downlink data transmissions to a user equipment (UE). The UE may schedule an uplink data transmission based on the downlink control transmission and may schedule transmission acknowledgement messages based on the multiple downlink data transmissions. The UE may identify that the scheduled uplink data transmission overlaps with the scheduled transmission acknowledgement messages. The UE may generate one or more acknowledgement codebooks for transmission of the multiple transmission acknowledgment messages and may multiplex the one or more acknowledgement codebooks with the uplink data transmission on the uplink data channel. In some cases, the UE may multiplex the codebooks based on determining that a set of timing thresholds are satisfied by an earliest of the multiple transmission acknowledgement messages and the uplink data transmission with respect to one or more downlink transmissions.

公开(公告)号：US20200314761A1

公开(公告)日：2020-10-01

申请号：US16805430

申请日：2020-02-28

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Peter Gaal ,  Wei Yang ,  Yi Huang ,  Wanshi Chen ,  Xiao Feng Wang ,  Seyed Ali Akbar Fakoorian ,  Alexandros Manolakos ,  James Beckman ,  Aamod Khandekar

IPC: H04W52/14 ,  H04W52/08 ,  H04W8/24 ,  H04L25/02 ,  H04L5/00 ,  H04W72/12

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a plurality of transmit power control commands identifying a plurality of transmit power values, wherein the plurality of transmit power control commands relate to a set of out-of-order communications. The UE may determine a transmit power for a communication based at least in part on the plurality of transmit power control commands. The UE may transmit the communication based at least in part on the determining the transmit power. Numerous other aspects are provided.

公开(公告)号：US20200314709A1

公开(公告)日：2020-10-01

申请号：US16828155

申请日：2020-03-24

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Yi Huang ,  Tao Luo

IPC: H04W36/00 ,  H04W72/14 ,  H04W72/12 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify physical uplink shared channel (PUSCH) configuration parameters to send a handover completion message at the end of a handover. A source cell may notify the UE of a handover via a handover command and the UE may acquire system information, and in some cases, a downlink message, from a target cell. The UE may identify a waveform configuration, numerology configuration, and/or modulation scheme using information from the handover command message, the system information, and/or the downlink message. The UE may also determine occasions for transmitting a PUSCH. For example, each occasion may include a set of time-frequency resources on which the PUSCH may be transmitted. The UE may send the handover completion message to the target cell via the PUSCH, during the one or more identified occasions, using the identified configuration parameters.

公开(公告)号：US20200313732A1

公开(公告)日：2020-10-01

申请号：US16831516

申请日：2020-03-26

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Seyedkianoush Hosseini ,  Yi Huang ,  Seyed Ali Akbar Fakoorian ,  Wanshi Chen ,  Xiaoxia Zhang

IPC: H04B7/0417 ,  H04B7/0456 ,  H04W72/04 ,  H04W72/14 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. A UE may determine resource amounts for transmitting feedback codebook for two different service types based on satisfaction of a multiplexing condition by overlapping resource schedules. The codebooks may be encoded according to different coding rates to generate encoded feedback codebooks. The encoded codebooks may be mapped to transmission resources according to codebook payload sizes, encoding rates, and available resources and transmitted according to the mapping.

公开(公告)号：US10784934B2

公开(公告)日：2020-09-22

申请号：US16476408

申请日：2018-02-05

Applicant: Qualcomm Incorporated

Inventor： Se Yong Park ,  Wei Zeng ,  Alexandros Manolakos ,  Sony Akkarakaran ,  Yi Huang ,  Renqiu Wang ,  Hao Xu ,  Yu Zhang ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Peter Gaal

IPC: H04B7/0456 ,  H04L5/00 ,  H04L27/26

Abstract: Methods, systems, and devices for wireless communication are described that support a low peak-to-average power ratio (PAPR) precoded reference signal design for multiple-input, multiple-output (MIMO) transmissions. A user equipment (UE) may identify multiple sets of symbols associated with different reference signal waveforms, where each reference signal waveform may be associated with a low PAPR. In some cases, different single-carrier reference signal waveforms may be mapped to subsets of frequency resources through frequency division multiplexing (FDM) for a transmission on a single antenna. However, the addition of single-carrier waveforms through FDM for a transmission via an antenna may result in an uplink transmission having a high PAPR (e.g., as compared to single-carrier waveforms). The UE may reduce the PAPR of the uplink transmission by multiplexing the reference signal waveforms in the time domain (e.g., using time division multiplexing (TDM)).

公开(公告)号：US20200259689A1

公开(公告)日：2020-08-13

申请号：US16862960

申请日：2020-04-30

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Xiao Feng Wang ,  Peter Gaal ,  Wanshi Chen

IPC: H04L27/144 ,  H04W48/08 ,  H04W8/24 ,  H04L27/26 ,  H04L5/00 ,  H04J13/00 ,  H04W76/27

Abstract: Methods, systems, and devices for wireless communications are described in which a base station may provide an indication of a reference signal to be used in demodulation of a π/2 BPSK modulation scheme for communications between a UE and the base station. The base station may indicate whether a first type of reference signal or a second type of reference signal is to be transmitted. The second type of reference signal may be a π/2 BPSK DMRS that has a reference signal sequence that has a lower PAPR. The second type of reference signal sequence may be a power deboosted version of the first reference signal sequence. The indication from the base station of the type of reference signal may be provided via RRC signaling, such as a cell-specific RRC transmission or a UE-specific RRC transmission.

公开(公告)号：US10743296B2

公开(公告)日：2020-08-11

申请号：US15792375

申请日：2017-10-24

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Renqiu Wang ,  Hao Xu ,  Wanshi Chen

IPC: H04W72/04 ,  H04L5/00

Abstract: A new design for an uplink control channel is provided. A User Equipment (UE) determines, based on a tone mapping pattern from a plurality of tone mapping patterns for an uplink control channel, resources for transmitting the uplink control channel, and transmits the uplink control channel using the determined resources. A Base Station (BS) determines a tone mapping pattern from a plurality of tone mapping patterns for an uplink control channel, and transmits information regarding the determined tone mapping pattern to at least one UE. The BS receives the uplink control channel based on the tone mapping pattern.