公开(公告)号：US20180102821A1

公开(公告)日：2018-04-12

申请号：US15608670

申请日：2017-05-30

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Yu Zhang ,  Jing Jiang ,  June Namgoong ,  Wanshi Chen ,  Tingfang Ji

IPC: H04B7/04 ,  H04B7/0413 ,  H04L5/00

CPC classification number: H04B7/0482 ,  H04B7/0413 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0048

Abstract: Aspects of the disclosure relate to a transmitting device, which may explicitly or implicitly signal the use of continuous precoding for a resource block (RB) cluster. For example, the transmitting device may implicitly indicate that continuous precoding is applied to an RB cluster by dynamically controlling one or more parameters of a transmission over those RBs. Further, when continuous precoding is applied to an RB cluster, the transmitting device may explicitly or implicitly signal the dynamic control over one or more transmission properties, with an aim to maximize the benefits of such continuous precoding. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20180083824A1

公开(公告)日：2018-03-22

申请号：US15612562

申请日：2017-06-02

Applicant: QUALCOMM Incorporated

Inventor： Yang Yang ,  Jing Jiang ,  Alexandros Manolakos ,  Santosh Paul Abraham

IPC: H04L27/38 ,  H04L27/22 ,  H04W72/04 ,  H04B1/10 ,  H04L1/00

CPC classification number: H04L27/0008 ,  H04B1/1027 ,  H04L1/0003 ,  H04L1/0023 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/14 ,  H04L27/183 ,  H04L27/186 ,  H04L27/2634 ,  H04L27/3405 ,  H04L27/3488 ,  H04W16/14 ,  H04W72/0446

Abstract: Techniques are described that provide nested constellations in which a lower order modulation scheme may be nested within constellation points of a higher-order modulation scheme. A higher-order modulation scheme, having a first constellation, may be used for a first subset of transmissions (e.g., data payload transmissions). A lower-order modulation scheme, having a second constellation, may be used for a second subset of transmissions (e.g., reference signal transmissions, embedded control transmissions, tapered payload transmissions, etc.). A subset of constellation points of the first constellation may be selected for transmitting the second subset of transmissions. A receiver may receive the transmissions and demodulate/decode the transmissions. In the event that other transmitters are transmitting concurrently, and using similar nested constellation techniques, the receiver may be able to perform improved interference mitigation compared to interference mitigation that may be performed on interfering signals that use different constellation points.

公开(公告)号：US20170339697A1

公开(公告)日：2017-11-23

申请号：US15591374

申请日：2017-05-10

Applicant: QUALCOMM Incorporated

Inventor： Seyong PARK ,  Jing Jiang ,  Hao Xu ,  Lu Zhao ,  Alexandros Manolakos ,  June Namgoong ,  Wei Zeng ,  Huang Lou

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0453 ,  H04L5/0007 ,  H04L5/0044 ,  H04L25/03821 ,  H04L27/2602 ,  H04W16/14

Abstract: Aspects of the present disclosure describe a guard band signal for communication on a guard band between a first frequency band utilized by a first radio access technology having a first sub-carrier spacing and a second frequency band utilized by a second radio access technology having a second sub-carrier spacing that is a multiple of the first sub-carrier spacing. The guard band signal includes a symbol that is repeated a number of times equal to the multiple. The guard band signal may be generated and transmitted by a transmitting device. The guard band signal may be received and decoded by a receiving device. The guard band signal is interpretable according to a first numerology of the first radio access technology and according to a second numerology of the second radio access technology.

公开(公告)号：US20170295589A1

公开(公告)日：2017-10-12

申请号：US15291626

申请日：2016-10-12

Applicant: QUALCOMM Incorporated

Inventor： Jay Kumar Sundararajan ,  Joseph Binamira Soriaga ,  Jing Jiang ,  Tingfang Ji ,  Alexandros Manolakos ,  Krishna Kiran Mukkavilli

IPC: H04W72/12 ,  H04L25/08 ,  H04L29/06 ,  H04L5/14

CPC classification number: H04W72/1215 ,  H04L5/14 ,  H04L25/08 ,  H04L69/22 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/1268 ,  H04W72/1278 ,  H04W74/002

Abstract: Aspects of the disclosure relate to a configurable subframe structure for use in next generation (e.g., fifth generation or 5G) wireless networks utilizing a time division duplex (TDD) carrier that minimizes interference with adjacent legacy wireless networks. The configurable subframe structure may be configured to produce next generation subframes, each including at least one of a downlink portion or an uplink portion, to substantially align downlink portions with corresponding legacy downlink subframes and/or uplink portions with corresponding legacy uplink subframes.

公开(公告)号：US20170272296A1

公开(公告)日：2017-09-21

申请号：US15251904

申请日：2016-08-30

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Jing Jiang ,  June Namgoong ,  Tao Luo ,  Joseph Binamira Soriaga ,  Tingfang Ji

IPC: H04L27/26 ,  H04L5/00 ,  H04W76/04 ,  H04W72/04

CPC classification number: H04L27/2613 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0082 ,  H04L5/1469 ,  H04W72/042 ,  H04W76/28

Abstract: Aspects of the present disclosure provide a wireless device that communicates with another wireless device utilizing self-contained subframes. The wireless device communicates with a scheduling entity utilizing a plurality of self-contained subframes that include a first subframe and a second subframe. Each of the self-contained subframes includes an uplink (UL) portion and a downlink (DL) portion. The wireless device further receives DL control information from the scheduling entity in the DL portion of the first subframe, and transmits UL data that includes a plurality of reference signal bursts to the scheduling entity in the UL portion of the first subframe. The plurality of reference signal bursts are uniformly spaced in at least a portion of the UL portion of the first subframe.

公开(公告)号：US20170187441A1

公开(公告)日：2017-06-29

申请号：US15176986

申请日：2016-06-08

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Jing Jiang ,  June Namgoong ,  Raghuraman Krishnamoorthl ,  Joseph Binamira Soriaga ,  Tingfang Ji

IPC: H04B7/06 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04B7/0626 ,  H04B7/0663 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0212 ,  H04L25/0216 ,  H04L25/0218 ,  H04L25/022 ,  H04W72/0413

Abstract: Techniques are described for wireless communication. One method includes identifying a plurality of channel responses corresponding to a plurality of channels. Each channel of the plurality of channels corresponds to a pairing of a transmit antenna with a receive antenna. Each channel response of the plurality of channel responses corresponds to a plurality of tone subsets. The method also includes selecting, for each channel of the plurality of channels, a subset of non-frequency domain components of the channel response for the channel, and transmitting, for at least one channel of the plurality of channels, at least one subset of channel state information (CSI). The at least one subset of CSI is based at least in part on at least one of the selected subsets of non-frequency domain components.

公开(公告)号：US20170164367A1

公开(公告)日：2017-06-08

申请号：US15225593

申请日：2016-08-01

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  June Namgoong ,  Raghuraman Krishnamoorthi ,  Jing Jiang ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Krishna Kiran Mukkavilli

IPC: H04W72/04 ,  H04L5/14 ,  H04L12/26 ,  H04L5/00

CPC classification number: H04B10/5055 ,  H04B7/0456 ,  H04B7/0639 ,  H04B7/0691 ,  H04L5/0051 ,  H04L5/14 ,  H04L25/0202 ,  H04L43/16 ,  H04W72/042 ,  H04W72/0453 ,  H04W88/02

Abstract: Methods, systems, and devices for wireless communication are described. One method includes identifying a plurality of intermediate precoders corresponding to a plurality of tone subsets. The plurality of intermediate precoders define a plurality of vectors across the plurality of tone subsets. The method further includes selecting, for each vector of the plurality of vectors, a subset of non-frequency domain components of the vector, such as time-domain components; modifying the plurality of intermediate precoders to a plurality of smoothed precoders based at least in part on the selected subset of non-frequency domain components for each vector; and precoding a plurality of transmit streams using the plurality of smoothed precoders. The plurality of smoothed precoders is smoothed in a frequency domain compared to the plurality of intermediate precoders. Smoothing precoders may enable application of wideband channel estimation techniques using user equipment (UE)-specific reference signals.

公开(公告)号：US12231361B2

公开(公告)日：2025-02-18

申请号：US17758442

申请日：2020-02-01

Applicant: QUALCOMM Incorporated

Inventor： Runxin Wang ,  Muhammad Sayed Khairy Abdelghaffar ,  Yu Zhang ,  Alexandros Manolakos ,  Weimin Duan

IPC: H04L5/00 ,  H04L1/00 ,  H04W72/54

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine downlink (DL) channel state information; and transmit a first sounding reference signal (SRS) and a second SRS, wherein the second SRS is precoded based at least in part on the DL channel state information. Numerous other aspects are provided.

公开(公告)号：US12212522B2

公开(公告)日：2025-01-28

申请号：US17768664

申请日：2019-10-31

Applicant: Qualcomm Incorporated

Inventor： Alexandros Manolakos ,  Yi Huang ,  Wanshi Chen ,  Pavan Kumar Vitthaladevuni ,  Krishna Kiran Mukkavilli ,  Bo Chen ,  Ruifeng Ma ,  Weimin Duan ,  Muhammad Sayed Khairy Abdelghaffar

IPC: H04L5/00 ,  H04W72/0453

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a configuration identifying a first set of frequency resources for transmitting a sounding reference signal, where the sounding reference signal may be used at least for downlink channel state information acquisition. The UE may receive an indication of an association between the configuration for the sounding reference signal and a second set of frequency resources and determine, based on the association, values for one or more sounding reference signal transmission parameters for the first set of frequency resources. The UE may transmit the sounding reference signal on the first set of frequency resources based on the determined one or more values.

公开(公告)号：US12200727B2

公开(公告)日：2025-01-14

申请号：US17758799

申请日：2021-03-04

Applicant: QUALCOMM INCORPORATED

Inventor： Alexandros Manolakos ,  Seyedkianoush Hosseini ,  Gokul Sridharan ,  Hung Dinh Ly

IPC: H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for a user equipment (UE) to identify a first set of scheduled transmissions to be received using a first set of time-frequency resources, where reference signals of the first set of transmissions may be bundled according to a first reference signal bundling pattern. The UE may identify a second scheduled transmission to be received using a second set of time-frequency resources that overlaps with the first set of resources. The UE may determine a second reference signal bundling pattern for bundling the reference signals received in the first set of transmissions. For example, the UE may modify the first reference signal bundling pattern to determine the second reference signal bundling pattern. The UE may receive the second scheduled transmission and the first set of scheduled transmissions according to the second reference signal bundling pattern.