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：US20200296550A1

公开(公告)日：2020-09-17

申请号：US16813311

申请日：2020-03-09

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Alexandros Manolakos ,  Guttorm Ringstad Opschaug ,  Peter Gaal ,  Juan Montojo ,  Joseph Binamira Soriaga ,  Tao Luo ,  Sven Fischer

IPC: H04W4/029 ,  G01S5/02 ,  G01S5/14

Abstract: Methods, systems, and devices for wireless communications are described. Techniques for implementing positioning schemes based on a waveform report are described. A wireless device may receive a waveform reporting request instructing the wireless device to measure a waveform. The wireless device may identify a set of reporting parameters for sampling the waveform, receive the waveform, and generate samples of the waveform based on the set of reporting parameters. The wireless device may transmit a waveform report that is generated based on the samples.

公开(公告)号：US10771221B2

公开(公告)日：2020-09-08

申请号：US16837423

申请日：2020-04-01

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Jing Jiang ,  Alexandros Manolakos ,  Chih-Ping Li

IPC: H04L5/00 ,  H04W72/04 ,  H04W76/27

Abstract: Methods, systems, and devices for wireless communications are described. One method may include receiving radio resource control signaling configured with a first set of demodulation reference signal parameters for transmission of an uplink data channel of a type, receiving downlink control information of a format to activate the transmission of the uplink data channel, identifying a second set of demodulation reference signal parameters for transmission of the uplink data channel of the type based on the received downlink control information, and activating the transmission of the uplink data channel using the first and second set of demodulation reference signal parameters.

公开(公告)号：US20200267026A1

公开(公告)日：2020-08-20

申请号：US16733874

申请日：2020-01-03

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Alberto Rico Alvarino ,  Joseph Binamira Soriaga

IPC: H04L25/02 ,  H04L5/00 ,  H04W72/04 ,  H04W64/00

Abstract: In some aspects, a method of wireless communication by a user equipment (UE) includes receiving, by the UE on a component carrier (CC), a downlink (DL) control information (DCI) that triggers transmission, by the UE on another CC, of an uplink (UL) reference signal (RS) for positioning. The method additionally includes transmitting, by the UE in response to the DCI, the UL RS for positioning on the other CC. In other aspects, a method of wireless communication by a base station includes transmitting, by the base station to a UE on a CC, a DCI that triggers transmission, by the UE on another CC, of an UL RS for positioning. The method additionally includes receiving, by the base station from the UE in response to the DCI, the UL RS for positioning on the other CC.

公开(公告)号：US10715392B2

公开(公告)日：2020-07-14

申请号：US15477955

申请日：2017-04-03

Applicant: QUALCOMM Incorporated

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

IPC: H04L12/24 ,  H04L1/00 ,  H04L27/26 ,  H04W64/00 ,  H04W72/00 ,  H04L5/00 ,  H04W84/00 ,  H04W88/08

Abstract: The present disclosure provides for adaptive resource management in new radio operations that adapts a numerology including a subcarrier spacing and/or cyclic prefix for a user equipment (UE) traveling at a high speed. A base station may transmit via a plurality of remote radio heads (RRH) to a user equipment (UE) is moving along a high speed track. The base station may transmit, in a first time period, using a first numerology including a first subcarrier spacing and a first cyclic prefix ratio, a first transmission for the UE. The base station may transmit, in a subsequent time period, using a second numerology including a second subcarrier spacing and a second cyclic prefix ratio, a second transmission for the UE. At least one of the second subcarrier spacing is different than the first subcarrier spacing or the second cyclic prefix ratio is different than the first cyclic prefix ratio.

公开(公告)号：US20200220761A1

公开(公告)日：2020-07-09

申请号：US16827493

申请日：2020-03-23

Applicant: Qualcomm Incorporated

Inventor： Wooseok Nam ,  Tao Luo ,  Alexandros Manolakos ,  Heechoon Lee ,  Yang Yang ,  Peter Gaal

IPC: H04L27/26 ,  H04L5/00 ,  H04W52/02

Abstract: Methods, systems, and devices for wireless communications are described for configuration aspects of a tracking reference signal in New Radio. A base station may select a first burst duration and a second burst duration for a tracking reference signal (TRS) burst, the first burst duration being different from the second burst duration, and may transmit configuration information indicating the first burst duration and the second burst duration to a user equipment (UE). The base station may transmit a first TRS burst having the first burst duration and a second TRS burst having the second burst duration. The UE may detect the first TRS burst having the first burst duration and the second TRS burst having the second burst duration based at least in part on the configuration information, and perform resource tracking based at least in part on the detected first TRS burst and the second TRS burst.

公开(公告)号：US20200186302A1

公开(公告)日：2020-06-11

申请号：US16701283

申请日：2019-12-03

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Parisa Cheraghi ,  Hari Sankar ,  Joseph Binamira Soriaga ,  Tao Luo ,  Tingfang Ji ,  Peter Gaal ,  Alexei Yurievitch Gorokhov

IPC: H04L5/00 ,  H04L1/16 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described that identify a minimum gap between a control channel transmission on a first component carrier (CC) that triggers a measurement report and an associated reference signal transmission on a second CC. The minimum gap may be based on a resource associated with a control channel transmission and a resource associated with the reference signal transmission. The first CC and the second CC have different numerologies and the minimum gap may be identified in terms of a number of OFDM symbols of the second CC that carries the reference signal transmission. The minimum gap also may be identified based on a location of the control channel transmission within a slot of the first CC. In cases where beam switching is used, the minimum gap may be further based at least in part on a beam switch time for performing the beam switching.

公开(公告)号：US10575217B2

公开(公告)日：2020-02-25

申请号：US16005796

申请日：2018-06-12

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Wanshi Chen ,  Tao Luo ,  Peter Gaal

IPC: H04W28/20 ,  H04W72/04 ,  H04L5/00

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a method for managing SRS transmission in a bandwidth part may include identifying one or more bandwidth parts of a component carrier of a cell to be allocated to a user equipment (UE). The method may also include identifying a sounding reference signal (SRS) bandwidth configuration for each of the one or more bandwidth parts. The method may further include transmitting the SRS bandwidth configuration to the UE. Numerous other aspects are provided.

公开(公告)号：US20200053752A1

公开(公告)日：2020-02-13

申请号：US16535927

申请日：2019-08-08

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Wanshi Chen ,  Xiaoxia Zhang ,  Alexandros Manolakos

IPC: H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. In some cases, multiple timing advances (TAs) may be configured for non-coherent joint transmission (NCJT) with respective transmit receive points (TRPs). For example, a NCJT mode may have multiple TAs semi-statically configured for the UE to follow for each TRP. In some cases, a TA index corresponding to a TA for a TRP may be added as a field to a sounding reference signal (SRS) resource definition (e.g., SRS resource configuration). Additionally or alternatively, the TA index may be determined from an SRS index transmitted by the TRP, where the TA index corresponds to a TA for uplink information in a physical uplink shared channel. Additionally or alternatively, the TA index may be included as a field in a physical uplink control channel (PUCCH) definition to indicate a TA for a corresponding PUCCH that the UE transmits to the TRP.

公开(公告)号：US10455619B2

公开(公告)日：2019-10-22

申请号：US15972934

申请日：2018-05-07

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Joseph Binamira Soriaga ,  Peter Gaal

IPC: H04W74/08 ,  H04W28/02 ,  H04W72/08 ,  H04L5/00 ,  H04L27/26

Abstract: The present disclosure relates to mitigating collision between reference signals and direct current subcarriers both occupying at least a same resource element of a resource block. Specifically, a UE may at least adjust a DMRS pattern within the resource block based on determining an upcoming occurrence of the collision between the DMRS and the DC subcarrier. Further, a network entity may determine that the UE should transmit the DMRS according to an adjusted DMRS pattern and transmit the adjusted DMRS pattern to the UE on a downlink communication channel.