公开(公告)号：US20210105724A1

公开(公告)日：2021-04-08

申请号：US16948833

申请日：2020-10-01

Applicant: QUALCOMM INCORPORATED

Inventor： Yi Huang ,  Gokul Sridharan ,  Wanshi Chen ,  Wei Yang ,  Peter Gaal

IPC: H04W52/14 ,  H04W52/36 ,  H04W8/24 ,  H04B7/0456 ,  H04B7/06 ,  H04W72/04

Abstract: Wireless communications systems and methods related to wireless communications in a system are provided. A user equipment (UE) may transmit to a base station (BS), an indication of a maximum transmit power capability of the UE. The UE may receive from the BS, a transmit precoding configuration based on the UE's maximum transmit power capability. Additionally, the UE may transmit to the BS, a communication signal using the transmit precoding configuration.

公开(公告)号：US10959247B2

公开(公告)日：2021-03-23

申请号：US16002912

申请日：2018-06-07

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Wanshi Chen ,  Peter Gaal ,  Joseph Binamira Soriaga ,  Yi Huang

IPC: H04W72/04 ,  H04W72/12 ,  H04L1/00 ,  H04L1/16 ,  H04L5/00 ,  H04W52/32 ,  H04W52/34

Abstract: Aspects directed towards new radio (NR) transmissions of uplink control information (UCI) are disclosed. In a particular example, a priority is assigned to each of a plurality of UCI components such that the priority is assigned according to at least one of a type or payload size respectively associated with each of the plurality of UCI components. The plurality of UCI components are then transmitted based on the priority respectively assigned to each of the plurality of UCI components.

公开(公告)号：US20210051691A1

公开(公告)日：2021-02-18

申请号：US17087098

申请日：2020-11-02

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/12 ,  H04L5/00 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communications are described that support splitting resources among different types of control information and uplink data for transmission on an uplink shared channel. A base station may transmit a grant indicating resource elements (REs) of an uplink shared channel allocated to a user equipment (UE) for an uplink transmission. The UE may process the grant and split the granted REs between different types of uplink control information (UCI) and uplink data based on a reference payload size. The UE may generate an uplink transmission based on the splitting of the REs, and may transmit the uplink transmission in the REs of the uplink shared channel indicated in the grant. The base station may monitor the REs of the uplink shared channel for the uplink transmission in accordance with the splitting of the plurality of REs.

公开(公告)号：US10813060B2

公开(公告)日：2020-10-20

申请号：US16250651

申请日：2019-01-17

Applicant: QUALCOMM Incorporated

Inventor： Xiao Feng Wang ,  Tao Luo ,  Wanshi Chen ,  Peter Gaal ,  Sony Akkarakaran ,  Yi Huang ,  Renqiu Wang

IPC: H04W52/36 ,  H04W72/04 ,  H04W84/04

Abstract: A method and apparatus are provided for generating and reporting a reference power headroom report (PHR) for New Radio (NR). A user equipment (UE) decides to report a reference power headroom (PH) for at least one carrier frequency in a transmission time interval (TTI). The UE determines at least one of an index (j) of a target received power of a Physical Uplink Shared Channel (PUSCH) to be transmitted in the TTI and a path loss scaling factor, an index (qd) of a reference signal used for measuring path loss for the carrier frequency, or an index (l) of a power control process used for the carrier frequency. The UE then calculates the reference PH based on one or more of the determined at least one index, and reports, in the TTI, a PHR including the reference PH for the carrier frequency.

公开(公告)号：US20200314900A1

公开(公告)日：2020-10-01

申请号：US16805514

申请日：2020-02-28

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Wei Yang ,  Peter Gaal ,  Yi Huang ,  Amir Aminzadeh Gohari ,  Seyed Ali Akbar Fakoorian

IPC: H04W74/08 ,  H04W72/10 ,  H04L1/18

Abstract: Methods, systems, and devices are described for handling transmissions or channels in wireless communications that collide with one another. The described techniques relate to handling the collision between multiple overlapping channels (e.g., two or more channels of the same priority). For example, a collision resolution configuration may include resolving the collisions among the channels of the same priority first (e.g., feedback information transmissions first, and then control information), among the channels of the same service type first (e.g., normal channels first, and then low latency channel(s)), or across all of the channels of all priorities at once. Collisions may be resolved by dropping or rescheduling overlapping information from the lower priority transmission(s) or channel(s) in consideration of the higher priority transmission(s) or channel(s), or by multiplexing or piggybacking overlapping information from a first priority transmission(s) or channel(s) with a second priority transmission(s) or channel(s).

公开(公告)号：US10778316B2

公开(公告)日：2020-09-15

申请号：US16374387

申请日：2019-04-03

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Gokul Sridharan ,  Jay Kumar Sundararajan ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Wei Yang

IPC: H04B7/06 ,  H04B7/0456

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may apply an open-loop multiple-input multiple-output (MIMO) scheme among a plurality of antenna groups associated with a plurality of antennas, wherein phase coherence cannot be maintained between the plurality of antenna groups; and may apply a closed-loop MIMO scheme among antennas within each antenna group of the plurality of antenna groups, wherein phase coherence can be maintained between antennas included in each antenna group of the plurality of antenna groups. Numerous other aspects are provided.

公开(公告)号：US10736093B2

公开(公告)日：2020-08-04

申请号：US16215493

申请日：2018-12-10

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Wanshi Chen ,  Hao Xu ,  Peter Gaal ,  Yi Huang ,  Renqiu Wang ,  Seyong Park

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04L5/14 ,  H04B7/212

Abstract: Aspects of the disclosure relate to wireless communication systems configured to provide techniques for strategically placing a sounding reference signal (SRS) within a slot to improve the decoding timeline. Aspects of the disclosure further relate to wireless communication systems configured to optimize the physical downlink control channel (PDCCH) search space within a slot to improve the decoding timeline. Features may also include placing the SRS near the end of the slot, such as after the uplink user data traffic and the corresponding uplink demodulation reference signal (DMRS). In addition, features may also include identifying the PDCCH search space within the slot based on at least a slot index of the slot. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20200186310A1

公开(公告)日：2020-06-11

申请号：US16702369

申请日：2019-12-03

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Yi Huang ,  Alexandros Manolakos ,  Wanshi Chen ,  Peter Gaal ,  Gokul Sridharan ,  Juan Montojo

IPC: H04L5/00 ,  H04W72/04 ,  H04B7/0456

Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device may identify multiple demodulation reference signal (DMRS) symbols corresponding to multiple DMRS ports of a multiple input multiple output configuration. The transmitting device may generate multiple phase-rotated and precoded DMRS symbols by applying an orthogonal cover code, a phase rotation scheme, and a precoding matrix to the identified DMRS symbols. The transmitting device may map the phase-rotated and precoded DMRS symbols to time-frequency resources corresponding to multiple antenna ports, and transmit a DMRS based on the mapped phase-rotated and precoded DMRS symbols. The transmitting device may transmit the DMRS using multiple antennas that correspond to the antenna ports.

公开(公告)号：US10594532B2

公开(公告)日：2020-03-17

申请号：US16228168

申请日：2018-12-20

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Hao Xu ,  Jing Jiang ,  Yi Huang ,  Wei Zeng ,  Wanshi Chen ,  Tingfang Ji

IPC: H04L27/26 ,  H04B7/0404 ,  H04B7/06 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0456 ,  H04J13/12

Abstract: A configurable new radio (NR) uplink (UL) transmission may use transmit diversity. A user equipment (UE) may identify an uplink transmission of at least one stream as using one of cyclic prefix orthogonal frequency division multiplexing or discrete Fourier transform spread orthogonal frequency division multiplexing. The UE may apply a precoding matrix to the at least one identified stream. The precoding matrix changes over time. The precoding matrix may change based on closed loop feedback, a precoding cycling pattern, and/or a code division multiplexing group. The UE may transmit the at least one identified stream from multiple antennas according to the applied precoding matrix.

公开(公告)号：US10567205B2

公开(公告)日：2020-02-18

申请号：US15674428

申请日：2017-08-10

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Sony Akkarakaran ,  Wei Zeng ,  Peter Gaal ,  Yi Huang ,  Renqiu Wang ,  Hao Xu ,  Tao Luo ,  Tingfang Ji

IPC: H04L27/26 ,  H04L5/00 ,  H04J11/00

Abstract: Methods, systems, and devices for wireless communications are described that support frequency and time domain multiplexing for low peak-to-average waveforms with multiple streams. A user equipment (UE) may identify sets of symbols associated with different streams (e.g., multiple single-carrier discrete Fourier transform (DFT)-spread waveforms), where each stream may be associated with a low peak-to-average power ratio (PAPR). In some cases, different waveforms may be mapped to subsets of frequency resources through frequency division multiplexing (FDM). The UE may further reduce the PAPR of the multiplexed waveforms by performing time division multiplexing (TDM) across the single-carrier streams, and sets of symbols that are not used by one waveform may be used by another waveform. Frequency domain phase ramps may be applied to align the multiplexed waveforms. Signals included in an uplink transmission according to these techniques may maintain properties similar to single-carrier waveforms, including a low PAPR.