公开(公告)号：US11234223B2

公开(公告)日：2022-01-25

申请号：US16566835

申请日：2019-09-10

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Wanshi Chen ,  Peter Gaal ,  Wei Zeng ,  Hao Xu ,  Yi Huang

IPC: H04W72/04 ,  H04L5/00

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided that may be configured to receive a downlink control message, to determine a beta offset value for transmitting UCI based at least in part on the downlink control message, and to transmit the UCI on an uplink shared channel interleaved with data based on the determined beta offset value. The apparatus may identify the beta offset from a set of values based on the downlink control message. An apparatus may identify resources allocated for PUSCH and may map UCI to the identified resources for PUSCH in a frequency interleaved manner over a bandwidth of the identified resources. The apparatus may map data to the identified resources in a time-first or frequency-first manner, and may transmit a signal comprising UCI and data on the identified resources of the PUSCH in accordance with the mapping.

公开(公告)号：US20210359731A1

公开(公告)日：2021-11-18

申请号：US17246374

申请日：2021-04-30

Applicant: QUALCOMM Incorporated

Inventor： Saeid Sahraei ,  Gokul Sridharan ,  Shimman Arvind Patel ,  Krishna Kiran Mukkavilli ,  June Namgoong ,  Taesang Yoo ,  Renqiu Wang

IPC: H04B7/0456 ,  H04B7/06 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communications are described in which a base station may identify a null space matrix that lies within a null space of an effective channel matrix for communications between the base station and a user equipment (UE). An indication of the null space matrix may be provided to the UE, and the null space matrix used to determine modifications to a precoding matrix. The base station and UE may determine a redistribution matrix that provides a reduced variance of transmission powers for a number of transmission channels, where a product of the null space matrix and the redistribution matrix may be computed and added to the precoding matrix to generate a modified precoding matrix. The modified precoding matrix may be used to generate the communications from the base station and UE with reduced power variance across channels.

公开(公告)号：US11122535B2

公开(公告)日：2021-09-14

申请号：US15646730

申请日：2017-07-11

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Wanshi Chen ,  Hao Xu ,  Alberto Rico Alvarino ,  Peter Gaal

IPC: H04W64/00 ,  H04W4/70 ,  H04B17/318 ,  H04L5/00 ,  H04W74/00

Abstract: Certain aspects of the present disclosure generally relate to DL-based and UL-based positioning reference signal (PRS) techniques that may help facilitate positioning procedures in systems deploying narrowband devices, such as NB-IoT devices. An exemplary method includes determining resources within a narrowband region of a wider system bandwidth for transmitting a positioning reference signal (PRS), transmitting the PRS using the determined resources, and estimating a position of a wireless node based on at least one first measurement of a first reference signal and the PRS transmitted within a narrowband region.

公开(公告)号：US11051324B2

公开(公告)日：2021-06-29

申请号：US16254398

申请日：2019-01-22

Applicant: QUALCOMM Incorporated

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

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

Abstract: Aspects of the present disclosure provide mechanisms for utilizing a single uplink grant to transmit scheduling requests (SRs) for two or more logical channels. A base station may allocate a separate grant of uplink resources for each SR opportunity (e.g., each logical channel for which a user equipment (UE) may transmit a SR to the base station). When the allocated uplink resources are within the same time period, the UE may select a subset of the SR opportunities for which to transmit a SR and partition the subset into one or more groups of SR opportunities. The UE may then generate one or more SR bits representing the one or more groups of SR opportunities and transmit the one or more SR bits on the single uplink grant.

公开(公告)号：US11051193B2

公开(公告)日：2021-06-29

申请号：US15215148

申请日：2016-07-20

Applicant: Qualcomm Incorporated

Inventor： Renqiu Wang ,  Madhavan Srinivasan Vajapeyam ,  Hao Xu ,  Wanshi Chen ,  Peter Gaal ,  Yongbin Wei

IPC: H04W24/10 ,  H04W4/70 ,  H04L5/00

Abstract: Aspects of the present disclosure provided techniques that for wireless communications by a base station (BS). An exemplary method, performed by a base station, generally includes identifying an operating state of a user equipment that communicates with the BS in at least one narrowband region, determining, based on the operating state, one or more operating parameters of a configurable measurement procedure whereby the user equipment (UE) tunes away from the narrowband region to measure signals transmitted from other BSs, and configuring the UE to perform the measurement procedure in accordance with the determined operating parameters.

公开(公告)号：US11026255B2

公开(公告)日：2021-06-01

申请号：US16020915

申请日：2018-06-27

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Peter Gaal ,  Xiao Feng Wang ,  Juan Montojo ,  Yi Huang ,  Renqiu Wang ,  Seyong Park

IPC: H04W72/14 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described that support discontinuous scheduling. A base station may transmit, to a user equipment (UE), a grant of resources of a communication channel over a multiple of aggregated TTIs. The UE may monitor a control channel for the grant of resources transmitted by base station. The base station and the UE may identify a location of an excluded TTI within the plurality of aggregated TTIs. The excluded TTI may correspond to a TTI for communicating synchronization signals, random access channel (RACH) signals, or the like. The base station may communicate with the UE via the resources of the communication channel over at least a subset of the aggregated TTIs based on the grant and the location of the excluded TTI.

公开(公告)号：US11018828B2

公开(公告)日：2021-05-25

申请号：US15713270

申请日：2017-09-22

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Wanshi Chen ,  Wei Zeng ,  Alexandros Manolakos ,  Hao Xu ,  Renqiu Wang ,  Yi Huang ,  Peter Gaal ,  Naga Bhushan

IPC: H04L5/00 ,  H04W52/18 ,  H04L27/26 ,  H04W72/04 ,  H04W52/36

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for Uplink MIMO reference signals and data transmission schemes communications systems operating according to 5G technologies. For example, one or more techniques for enabling PRG selection and conveying that selection are provided. In some cases, precoder selection techniques may be provided. Further, in some cases, techniques may be provided to distinguish OFDM and DFT-s-OFDM by using different ports.

公开(公告)号：US20210144039A1

公开(公告)日：2021-05-13

申请号：US17152761

申请日：2021-01-19

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Yi Huang ,  Renqiu Wang ,  Sony Akkarakaran ,  Peter Gaal ,  Tao Luo

IPC: H04L27/26 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. Pre-discrete Fourier transform (DFT) time-domain spreading codes may be applied for UE multiplexing for uplink control information (e.g., over shared resources of an uplink slot). For example, a moderate number of UEs may be multiplexed within the same slot by having each UE spread modulation symbols before DFT-spreading by different spreading code. For orthogonality across UEs, the pre-DFT spreading codes may be selected as orthogonal cover codes (OCCs). The spreading sequences can be generated from a set of any orthogonal sequences or generated from unitary matrices. In some cases, orthogonality in the time domain may be kept as well as a frequency division multiplexed (FDM) structure in the frequency domain. For such property, a Fourier basis OCC design may be used. In some other examples, a Hadamard matrix based OCC design may be used.

公开(公告)号：US11005695B2

公开(公告)日：2021-05-11

申请号：US16126332

申请日：2018-09-10

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Peter Gaal ,  Yi Huang ,  Renqiu Wang ,  Xiao Feng Wang ,  Sony Akkarakaran ,  Timo Ville Vintola ,  Tao Luo

IPC: H04L27/34 ,  H04L27/36 ,  H04L5/00 ,  H04L27/26 ,  H04J13/00 ,  H04L15/03 ,  H04L25/03

Abstract: Certain aspects of the present disclosure relate to methods and apparatus relating to reference signal design for Pi/2-binary phase shift keying (Pi/2-BPSK) modulation with frequency domain spectral shaping (FDSS). In certain aspects, a method includes generating a set of Gold sequences each having a length and adjusting the length of each of the Gold sequences in the set of Gold sequences. The method also includes applying a phase rotation to each of the Gold sequences in the set of Gold sequences and modulating each of the Gold sequences in the set of Gold sequences by a DFT-s-OFDM with frequency domain spectral shaping (FDSS). The method further includes selecting one or more sequences from the set of modulated Gold sequences based on a parameter and transmitting the one or more sequences to a user equipment (UE) or a base station (BS).

公开(公告)号：US11005620B2

公开(公告)日：2021-05-11

申请号：US16008908

申请日：2018-06-14

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/00 ,  H04L5/00 ,  H04L27/26

Abstract: Various aspects described herein relate to techniques for uplink reference signal sequence design in wireless communications systems. A method, a computer-readable medium, and an apparatus are provided. In an aspect, the method includes identifying a set of sequences to include at least a base sequence, a reverse order sequence of the base sequence, a complex conjugate sequence of the base sequence, or a reverse order complex conjugate sequence of the base sequence, and transmitting an uplink reference signal based on at least one of the sequences in the set. The techniques described herein may apply to different communications technologies, including 5th Generation (5G) New Radio (NR) communications technology.