公开(公告)号：US11076388B2

公开(公告)日：2021-07-27

申请号：US15868529

申请日：2018-01-11

Applicant: QUALCOMM Incorporated

Inventor： Wei Zeng ,  Tingfang Ji ,  Joseph Binamira Soriaga

IPC: H04W88/08 ,  H04W88/02 ,  H04W72/04 ,  H04W76/27 ,  H04L5/00

Abstract: Various aspects are provided for dynamic configuration of common uplink bursts. For example, the described apparatus and methods include receiving, at a user equipment (UE), an indicator of a length of a common uplink burst from a gNB, configuring the common uplink burst having the length as identified by the indicator, and transmitting, from the UE, the common uplink burst to the gNB.

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：US11006424B2

公开(公告)日：2021-05-11

申请号：US16376601

申请日：2019-04-05

Applicant: QUALCOMM Incorporated

Inventor： Wei Zeng ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  John Edward Smee ,  Naga Bhushan

IPC: H04W72/04 ,  H04W28/26 ,  H04L29/08 ,  H04W72/08 ,  H04W52/02 ,  H04W74/08 ,  H04W72/12 ,  H04W74/00

Abstract: Wireless communications systems and methods related to the reduction in a probability of collision for grant-less transmissions from internet of everything (IOE) devices while not increasing search complexity at a base station are disclosed. An IOE device randomly selects a first access resource from a common pool that the base station searches to initiate a transmission. If a metric associated with the data transmission is predicted to exceed a threshold, the IOE device also requests a second access resource from a reserved access pool from the base station, that the base station does not search. The IOE includes the request in the data transmission. The base station and the IOE device switch to the second access resource after the base station identifies an available resource from the reserved access pool and the IOE device completes the data transmission using the second access resource.

公开(公告)号：US10980022B2

公开(公告)日：2021-04-13

申请号：US15211011

申请日：2016-07-15

Applicant: QUALCOMM INCORPORATED

Inventor： Wei Zeng ,  Joseph Binamira Soriaga ,  Alexandros Manolakos ,  Tingfang Ji

IPC: H04L12/00 ,  H04W72/04 ,  H04L5/14 ,  H04L5/00 ,  H04W28/02 ,  H04W88/02 ,  H04W88/08

Abstract: Wireless communications systems and methods related to a coupled mode common uplink burst in Time Division Duplex (TDD) sub-frame structure are disclosed. Upon receiving a signal requesting a user to transmit a sounding reference signal (SRS) and a control channel within a common uplink (UL) burst in each sub-frame communicated between the user and a base station, the user transmits the common UL burst comprising the SRS coupled with the control channel spanning the same frequency bandwidth.

公开(公告)号：US10778487B2

公开(公告)日：2020-09-15

申请号：US16442017

申请日：2019-06-14

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Wanshi Chen ,  Hao Xu ,  Wei Zeng

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

Abstract: A method and apparatus for demodulation reference signal (DMRS) communication are described. The method and apparatus include determining a DMRS pattern for at least two multiplexing schemes. In some aspects, the at least two multiplexing schemes may include orthogonal frequency-division multiplexing (OFDM) and single carrier frequency-division multiplexing (SC-FDM). Further, in some aspects, the DMRS pattern may correspond to a continuous tone pattern in each subframe transmitted in accordance with both SC-FDM and OFDM. Additionally, in some aspects, the DMRS pattern may correspond to a comb tone pattern in each subframe transmitted in accordance with both SC-FDM and OFDM. The method and apparatus further include transmitting a DMRS in accordance with at least one of the two multiplexing schemes and based on the DMRS pattern.

公开(公告)号：US20200252857A1

公开(公告)日：2020-08-06

申请号：US16853086

申请日：2020-04-20

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Tingfang Ji ,  Chong Li ,  Shailesh Patil ,  Joseph Binamira Soriaga ,  Jing Jiang ,  Wei Zeng ,  Alexei Yurievitch Gorokhov ,  Junyi Li

IPC: H04W40/24 ,  H04W74/08 ,  H04W8/00 ,  H04W64/00 ,  H04W72/02

Abstract: Device detection in networks with mixed mobility devices is discussed. Devices in the network first determine a discovery mode from a plurality of discovery modes, wherein the determining is based on a mobility state of the wireless device. The device identifies a set of resources associated with the determined discovery mode, wherein each of the plurality of discovery modes is provisioned with separate resources. A discovery signal is transmitted using the identified set of resources according to the discovery mode. Thus, devices with higher mobility will generally send discovery signals more often than devices that are static or semi-static.

公开(公告)号：US10694527B2

公开(公告)日：2020-06-23

申请号：US15667201

申请日：2017-08-02

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Peter Gaal ,  Jing Jiang ,  Haitong Sun ,  Naga Bhushan ,  Tingfang Ji ,  Wei Zeng ,  Shimman Arvind Patel

IPC: H04W72/08 ,  H04W72/04 ,  H04L12/851 ,  H04L12/911 ,  H04W28/02

Abstract: Certain aspects of the present disclosure provide techniques for co-existence of reliable low-latency and other services in a wireless network. According to certain aspects, a method of wireless communication by a base station is provided. The method generally includes reserving a first region of a set of resources to a first user for at least a first uplink transmission related to a first type of service, receiving the first uplink transmission in the reserved first region, and dynamically assigning resources in a second region of the set of resources for at least a second uplink transmission related to the first type of service.

公开(公告)号：US20200044804A1

公开(公告)日：2020-02-06

申请号：US16594960

申请日：2019-10-07

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Wei Zeng ,  Wanshi Chen ,  Hao Xu ,  Tingfang Ji

IPC: H04L5/00 ,  H04B7/0413 ,  H04B7/06 ,  H04L1/00

Abstract: Both precoded sounding reference signals (SRS) and unprecoded SRS are transmitted from a UE to an eNB. The UE may transmit both in the same subframe using either TDM or FDM. Or the UE may transmit each in different subframes from each other. The eNB uses some combination of the precoded SRS and the unprecoded SRS in scheduling resources for the UE. The eNB may also provide instruction to the UE for PUSCH precoding for data transmission. The eNB may signal the UE to use the same precoding as for the precoded SRS. The eNB may instead signal the UE to use different precoding by including the precoding information or delta information between the precoding used for the precoded SRS and the selected precoding for the PUSCH data.

公开(公告)号：US10425923B2

公开(公告)日：2019-09-24

申请号：US15440947

申请日：2017-02-23

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Hao Xu ,  Wei Zeng ,  Jing Jiang ,  Tingfang Ji

IPC: H04W72/04 ,  H04L5/00 ,  H04L5/26 ,  H04L12/24 ,  H04L27/00

Abstract: Methods, systems, and devices for wireless communication are described that provide for uplink channel multiplexing and waveform selection. Uplink channels to be transmitted from one or more user equipment (UEs) to a base station are multiplexed together or separately into an uplink subframe. Each UE is capable of using different waveforms to transmit different channels. Reference signals are communicated according to an RS pattern, which is symmetric across uplink and downlink channels.

公开(公告)号：US10404332B2

公开(公告)日：2019-09-03

申请号：US15182433

申请日：2016-06-14

Applicant: QUALCOMM Incorporated

Inventor： Tingfang Ji ,  John Edward Smee ,  Joseph Binamira Soriaga ,  Wei Zeng ,  Jing Jiang

IPC: H04W4/00 ,  H04B7/0417 ,  H04L5/00 ,  H04W72/04 ,  H04L25/02 ,  H04W28/02

Abstract: Techniques for utilizing resources in a downlink (DL) common burst are described herein. In one aspect, a channel state information reference signal (CSI-RS) may be included in the DL common burst for channel estimation. In another aspect, a demodulation reference signal (DM-RS) and DL data may be included in the DL common burst for low latency data transmission. In yet another aspect, a measurement reference signal (M-RS) may be included in the DL common burst to assist handover decisions. The techniques described herein may be used for various wireless communications systems.