公开(公告)号：US20190312700A1

公开(公告)日：2019-10-10

申请号：US16405442

申请日：2019-05-07

Applicant: QUALCOMM INCORPORATED

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Xiao feng Wang ,  Sony Akkarakaran ,  Wooseok Nam ,  Sumeeth Nagaraja ,  Kaushik Chakraborty ,  Shengbo Chen

IPC: H04L5/00 ,  H04W76/15 ,  H04L27/26

Abstract: Wireless communications systems and methods related to reusing long-term evolution (LTE) resources for new radio (NR) system operations are provided. A UE receives, from a base station, a reference signal configuration of a first network of a long-term evolution (LTE) radio access technology (RAT). The UE and the base station are associated with a second network of another RAT. The reference signal configuration indicates at least a number of antenna ports associated with a reference signal of the first network. The UE determines a location of the reference signal associated with the reference signal configuration and receives, from the base station, a data signal of the second network based at least on the location of the reference signal of the first network.

公开(公告)号：US10327154B2

公开(公告)日：2019-06-18

申请号：US15705148

申请日：2017-09-14

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth Nagaraja ,  Tao Luo ,  Ajay Gupta ,  Makesh Pravin John Wilson ,  Kaushik Chakraborty ,  Sony Akkarakaran ,  Vinod Viswanatha Menon

IPC: H04W16/28 ,  H04B7/06 ,  H04B7/08 ,  H04L5/00 ,  H04B17/318 ,  H04B17/336

Abstract: Apparatuses and methods of beam switching are presented. A beam switch message (BSM) is transmitted to a second device via a first beam set. The BSM includes a command to switch from communication via the first beam set to communication via a second beam set at a switch time. A response message is received from the second device via the first beam set. The response message indicates that the second device received the BSM. A communication is sent to the second device via the second beam set after the switch time if the response message is received.

公开(公告)号：US10326576B2

公开(公告)日：2019-06-18

申请号：US15948539

申请日：2018-04-09

Applicant: QUALCOMM INCORPORATED

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Xiao feng Wang ,  Sony Akkarakaran ,  Wooseok Nam ,  Sumeeth Nagaraja ,  Kaushik Chakraborty ,  Shengbo Chen

IPC: H04L5/00 ,  H04W76/15 ,  H04L27/26 ,  H04W72/04

Abstract: Wireless communications systems and methods related to reusing long-term evolution (LTE) resources in a nested network system are provided. A first wireless communication device receives, from a second wireless communication device, a reference signal configuration of a first network of a long-term evolution (LTE) radio access technology (RAT). The first wireless communication device and the second wireless communication device are associated with a second network of another RAT. The first wireless communication device receives, from the second wireless communication device, a communication signal in the second network based on the reference signal configuration of the first network. The reference signal configuration indicates at least one of a frequency tone of a reference signal of the first network, a time period of the reference signal of the first network, or a number of antenna ports associated with the reference signal of the first network.

公开(公告)号：US20190159280A1

公开(公告)日：2019-05-23

申请号：US16193786

申请日：2018-11-16

Applicant: QUALCOMM Incorporated

Inventor： Kaushik Chakraborty ,  Rahul Malik ,  Srinivas Yerramalli ,  Tamer Kadous

IPC: H04W76/28 ,  H04W76/15 ,  H04W52/02

Abstract: Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support communications between a base station and a user equipment (UE) on multiple carriers. A UE may maintain a connection with a base station on a first carrier (e.g., an anchor carrier), and the UE may use a discontinuous reception (DRX) cycle on a second carrier. The DRX cycle may include scheduled on-durations during which the UE may monitor the second carrier for signaling from the base station. To reduce the power consumption at the UE associated with repeatedly monitoring scheduled on-durations, the base station may transmit wake-up signaling to the UE on the first carrier to identify the on-durations that include data from the base station. Accordingly, the UE may monitor these on-durations for the data and avoid monitoring other on-durations to limit power consumption.

公开(公告)号：US20180070380A1

公开(公告)日：2018-03-08

申请号：US15385058

申请日：2016-12-20

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth Nagaraja ,  Tao Luo ,  Sony Akkarakaran ,  Makesh Pravin John Wilson ,  Aitzaz Ahmad ,  Kaushik Chakraborty

IPC: H04W74/08 ,  H04W72/04 ,  H04W16/28

CPC classification number: H04W74/0833 ,  H04B7/00 ,  H04B7/0695 ,  H04W16/28 ,  H04W72/0406 ,  H04W72/0446

Abstract: Wireless communications systems and methods related to performing random access procedures. A base station (BS) receives, from a user equipment (UE), a plurality of random access preambles from a plurality of beam directions, wherein each of the plurality of random access preambles is received from a different beam direction, and wherein the plurality of random access preambles are associated with multiple random access opportunities of a random access attempt. The BS sends, in response to the plurality of random access preambles, a plurality of random access response (RAR) messages in the plurality of beam directions.

公开(公告)号：US09674769B2

公开(公告)日：2017-06-06

申请号：US13734952

申请日：2013-01-05

Applicant: QUALCOMM Incorporated

Inventor： Kaushik Chakraborty ,  Bongyong Song ,  Soumya Das

IPC: H04W48/16 ,  H04L5/00 ,  H04W52/02 ,  H04W84/04

CPC classification number: H04W48/16 ,  H04L5/0053 ,  H04W52/0206 ,  H04W84/045 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146

Abstract: A method of beacon detection performed by a small cell device includes: exchanging beacon parameters with a user equipment (UE); entering a low power mode after exchanging the beacon parameters with the UE; receiving, from the UE, a beacon in a random access channel (RACH) preamble containing the beacon parameters while in the low power mode; entering a high power mode in response to receiving the beacon; and associating with the UE while in the high power mode. The method of beacon detection allows a small cell device to transition from a low power mode to a high power mode in an efficient manner. The transmission may be triggered by a user equipment that is entering a service area of the small cell device.

公开(公告)号：US09603110B2

公开(公告)日：2017-03-21

申请号：US14600481

申请日：2015-01-20

Applicant: QUALCOMM Incorporated

Inventor： Kaushik Chakraborty ,  Soumya Das ,  Olufunmilola Awoniyi-Oteri ,  Nitinkumar Sagarbhai Barot

IPC: H04W56/00 ,  H04W88/06

CPC classification number: H04W56/0005 ,  H04W88/06

Abstract: A user equipment may identify one or more trigger factors associated with an assistance mode. The assistance mode may include a second radio associated with a second radio access technology (RAT) assisting a first radio associated with a first RAT. The UE may then measure a frequency offset between a first clock of the first radio and a second clock of the second radio based at least in part on the one or more trigger factors. The first clock may be associated with a first oscillator crystal, and the second clock may be associated with a second oscillator crystal. The UE may then store the frequency offset for use by the first radio and the second radio in the assistance mode.

公开(公告)号：US20160212677A1

公开(公告)日：2016-07-21

申请号：US14600360

申请日：2015-01-20

Applicant: QUALCOMM Incorporated

Inventor： Kaushik Chakraborty ,  Soumya Das ,  Edwin Chongwoo Park

IPC: H04W40/02 ,  H04B1/40

CPC classification number: H04W40/02 ,  H04B1/0483 ,  H04B1/40 ,  H04B1/525 ,  H04B17/11 ,  H04B17/14 ,  H04B17/21 ,  H04W84/12

Abstract: A combined signal path in a UE may use portions of a WWAN transceiver and portions of a WLAN transceiver. The combined signal path may be a combined Tx signal path or a combined Rx signal path. The combined signal path in the UE may be calibrated. Calibration may involve using a feedback path, such as a WWAN feedback path, a WLAN feedback path, or a combination of both WWAN and WLAN feedback paths.

Abstract translation: UE中的组合信号路径可以使用WWAN收发器的部分和WLAN收发器的部分。 组合信号路径可以是组合的Tx信号路径或组合的Rx信号路径。 可以校准UE中的组合信号路径。 校准可以涉及使用诸如WWAN反馈路径，WLAN反馈路径或WWAN和WLAN反馈路径的组合的反馈路径。

公开(公告)号：US11889481B2

公开(公告)日：2024-01-30

申请号：US17585304

申请日：2022-01-26

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Xiaoxia Zhang ,  Jing Sun ,  Tao Luo ,  Srinivas Yerramalli ,  Kaushik Chakraborty ,  Arumugam Chendamarai Kannan ,  Sungwoo Park ,  Wooseok Nam ,  Juan Montojo

IPC: H04W72/04 ,  H04W72/044

CPC classification number: H04W72/044

Abstract: Aspects described herein relate to resource block allocation for time domain single-carrier waveform processing in new radio (NR). Specifically, in an aspect, a guard band may be allocated for a single-carrier waveform in a time or frequency domain. In another aspect, a resource block may be allocated for a time domain single-carrier waveform.

公开(公告)号：US11770221B2

公开(公告)日：2023-09-26

申请号：US17469747

申请日：2021-09-08

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo Park ,  Srinivas Yerramalli ,  Wooseok Nam ,  Xiaoxia Zhang ,  Tao Luo ,  Jing Sun ,  Arumugam Chendamarai Kannan ,  Vinay Chande ,  Kaushik Chakraborty ,  Olufunmilola Omolade Awoniyi-Oteri ,  Sony Akkarakaran ,  Mostafa Khoshnevisan ,  Zhifei Fan

IPC: H04L5/00 ,  H04W72/0453 ,  H04L27/26

CPC classification number: H04L5/0007 ,  H04L5/0053 ,  H04L27/2607 ,  H04L27/26025 ,  H04L27/2636 ,  H04L27/2678 ,  H04W72/0453

Abstract: Methods, systems, and devices for time domain single carrier (SC) waveform communications are described. A user equipment (UE) may generate an SC waveform by resampling (e.g., up-sampling) mapped information bits prior to insertion of a cyclic prefix (CP) or guard interval (GI). Performing resampling prior to CP/GI insertion allows for resource allocation flexibility and a base station may allocate resources for the SC waveform in accordance with this flexibility. For example, a base station may not be limited or restricted to a certain number of resources for SC waveform communications and may therefore determine a resource allocation for the UE based on the capability of the UE to perform resampling prior to CP/GI insertion. The resampling may be performed according to a set of parameters including a resampling ratio, which may be indicated to the UE via control signaling (e.g., from the base station).