公开(公告)号：US11337095B2

公开(公告)日：2022-05-17

申请号：US16734254

申请日：2020-01-03

Applicant: QUALCOMM Incorporated

Inventor： Weiliang Zeng ,  Sanaz Barghi ,  Pouriya Sadeghi ,  Supratik Bhattacharjee ,  Taesang Yoo ,  Xiaoxia Zhang ,  Yisheng Xue

IPC: H04W24/10 ,  H04W72/04 ,  H04B7/06 ,  H04W24/08

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, a request that the UE report a predicted future channel state information measurement. Upon receiving the request, the UE may measure, during a first time period, a channel to obtain measured channel state information. The UE may then determine the predicted future channel state information for a second time period based on the measured channel state information. In some case, the second time period may be subsequent to the first time period. Upon determining the predicted future channel state information measurement, the UE may transmit, to the base station, a channel state information report. In some aspects, the channel state information report may be indicative of the predicted future channel state information measurement.

公开(公告)号：US11206661B2

公开(公告)日：2021-12-21

申请号：US16671053

申请日：2019-10-31

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Alexandros Manolakos ,  Amir Farajidana ,  Supratik Bhattacharjee ,  Seyedkianoush Hosseini

IPC: H04W72/04 ,  H04L5/00

Abstract: In an aspect, a method of wireless communication includes receiving, by a user equipment (UE), downlink control information (DCI) having a resource allocation of allocated physical resource blocks (PRBs). The method additionally includes employing at least one of a) a wideband decoder, b) a wideband channel estimator, c) a bandwidth-specific decoder, or d) a bandwidth-specific channel estimator for wireless communications based at least on a feature of the resource allocation in the DCI. In other aspects a UE transmits, to a base station, an indication of UE capabilities regarding support of wideband physical resource group (PRG) for various transmission time interval (TTI) durations.

公开(公告)号：US20210211912A1

公开(公告)日：2021-07-08

申请号：US16734254

申请日：2020-01-03

Applicant: QUALCOMM Incorporated

Inventor： Weiliang Zeng ,  Sanaz Barghi ,  Pouriya Sadeghi ,  Supratik Bhattacharjee ,  Taesang Yoo ,  Xiaoxia Zhang ,  Yisheng Xue

IPC: H04W24/10 ,  H04W24/08 ,  H04B7/06 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, a request that the UE report a predicted future channel state information measurement. Upon receiving the request, the UE may measure, during a first time period, a channel to obtain measured channel state information. The UE may then determine the predicted future channel state information for a second time period based on the measured channel state information. In some case, the second time period may be subsequent to the first time period. Upon determining the predicted future channel state information measurement, the UE may transmit, to the base station, a channel state information report. In some aspects, the channel state information report may be indicative of the predicted future channel state information measurement.

公开(公告)号：US10687263B2

公开(公告)日：2020-06-16

申请号：US16275214

申请日：2019-02-13

Applicant: QUALCOMM Incorporated

Inventor： Karthika Paladugu ,  Gavin Bernard Horn ,  Prashanth Haridas Hande ,  Keiichi Kubota ,  Prasad Reddy Kadiri ,  Alberto Rico Alvarino ,  Masato Kitazoe ,  Umesh Phuyal ,  Supratik Bhattacharjee

IPC: H04W36/18 ,  H04W36/08 ,  H04W76/27 ,  H04W12/00 ,  H04W12/04 ,  H04W12/10 ,  H04W36/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment concurrently communicates with a source base station (BS) and a target BS on a connection with the source BS and a connection with the target BS as part of a make-before-break (MBB) handover procedure; and performs a common packet data convergence protocol (PDCP) function for the connection with the source BS and the connection with the target BS before the connection with the source BS is released as part of the MBB handover procedure. Numerous other aspects are provided.

公开(公告)号：US10667222B2

公开(公告)日：2020-05-26

申请号：US15926934

申请日：2018-03-20

Applicant: QUALCOMM Incorporated

Inventor： Gaurav Nigam ,  Sibasish Das ,  Supratik Bhattacharjee ,  Ankit Verma ,  Hongbo Yan ,  Navid Ehsan ,  Ashok Mantravadi ,  Surendra Boppana

IPC: H04W52/32 ,  H04W52/14 ,  H04W52/50 ,  H04W72/04

Abstract: Aspects of the present disclosure provide techniques for the user equipment (UE) to select a power management mode from a plurality of power management modes supported by the UE based on decoding of a portion of the downlink subframe. For example, when the UE receives a subframe from a base station, the UE may decode a control channel region of the subframe to determine whether the subframe includes a channel grant allocated to the UE. If no channel grant is included in the subframe, the UE may select a power management mode for the UE from the plurality of power management modes supported by the UE that maximizes the UE's sleep opportunities while balancing the deficient performance costs.

公开(公告)号：US20190124586A1

公开(公告)日：2019-04-25

申请号：US15792361

申请日：2017-10-24

Applicant: Qualcomm Incorporated

Inventor： Mustafa Emin Sahin ,  Raghu Challa ,  Pengkai Zhao ,  Parisa Cheraghi ,  Supratik Bhattacharjee ,  Yongle Wu

IPC: H04W48/16 ,  H04B17/382

Abstract: Methods, systems, and devices for wireless communications are described. An exemplary method includes receiving a signal corresponding to a frequency band, scanning for communications activity within the frequency band, wherein scanning for communications activity within the frequency band comprises performing a correlation calculation on samples of the signal, and determining whether to attempt a connection establishment within the frequency band based at least in part on the correlation calculation on samples of the signal. When the scanning identifies an indication of activity, a scanning device may attempt to establish a connection with a base station within the frequency band. When the scanning identifies an indication of no activity, a scanning device may refrain from attempting to establish a connection with a base station within the frequency band, and may perform the correlation-enhanced frequency scanning on a different frequency band.

公开(公告)号：US09125209B2

公开(公告)日：2015-09-01

申请号：US13789656

申请日：2013-03-07

Applicant: QUALCOMM Incorporated

Inventor： Hisham A. Mahmoud ,  Supratik Bhattacharjee ,  Brian Clarke Banister

IPC: G01R31/08 ,  H04W76/04 ,  H04L1/00

CPC classification number: H04W76/28 ,  H04L1/0026 ,  H04L1/0027

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus determines whether a channel quality indicator (CQI) is to be reported during any one of x subframes immediately after a start of a next on-duration, an on-duration being a duration over which a downlink control channel is monitored every discontinuous reception (DRX) cycle, and x being a number of subframes used to generate a CQI report, schedules a wake-up time for reporting the CQI when the CQI is to be reported during any one of the x subframes immediately after the start of the next on-duration, and reports the CQI based on a reference subframe. The CQI may be based on a last subframe of a previous DRX cycle active time, and reported at a first subframe of the next on-duration.

Abstract translation: 提供了一种用于无线通信的方法，装置和计算机程序产品。 该装置确定在紧接着下一个开启持续时间之后的x个子帧中的任一个子帧期间是否报告信道质量指示符（CQI），接通持续时间是每个不连续接收监视下行链路控制信道的持续时间 （DRX）周期，x是用于生成CQI报告的子帧的数量，在紧接在下一个开始后的x子帧中的任何一个x子帧期间报告CQI时，调度用于报告CQI的唤醒时间 并且基于参考子帧来报告CQI。 CQI可以基于先前DRX周期活动时间的最后一个子帧，并且在下一个开启持续时间的第一子帧处报告。

公开(公告)号：US20130122841A1

公开(公告)日：2013-05-16

申请号：US13670580

申请日：2012-11-07

Applicant: Qualcomm Incorporated

Inventor： Shivratna Giri Srinivasan ,  Raghu Narayan Challa ,  Supratik Bhattacharjee ,  Brian Clarke Banister

IPC: H04W56/00

CPC classification number: H04W56/00 ,  H04B1/7083 ,  H04J11/0069 ,  H04L27/2663

Abstract: Methods and apparatus for determining a reference sequence and timing based on normalized correlations are described. One example method generally includes receiving, at a first antenna of an apparatus, a first signal comprising a reference sequence; receiving, at a second antenna of the apparatus, a second signal comprising the same reference sequence; sampling the first and second signals to form first and second signal sequences; correlating the first and second signal sequences with each of one or more candidate sequences for the reference sequence using normalization; and determining the reference sequence and timing for the first and second signals based on the normalized correlations.

Abstract translation: 描述了基于归一化相关性来确定参考序列和定时的方法和装置。 一个示例性方法通常包括在装置的第一天线处接收包括参考序列的第一信号; 在装置的第二天线处接收包括相同参考序列的第二信号; 对第一和​​第二信号进行采样以形成第一和第二信号序列; 使用归一化将第一和第二信号序列与用于参考序列的一个或多个候选序列中的每一个相关; 以及基于所述归一化相关性来确定所述第一和第二信号的参考序列和定时。

公开(公告)号：US20130121188A1

公开(公告)日：2013-05-16

申请号：US13671877

申请日：2012-11-08

Applicant: QUALCOMM INCORPORATED

Inventor： Sibasish Das ,  Shivratna Giri Srinivasan ,  Supratik Bhattacharjee ,  Brian Clarke Banister

IPC: H04W56/00

CPC classification number: H04W56/00 ,  H04J11/0073 ,  H04J11/0076 ,  H04L27/0014 ,  H04L27/261 ,  H04L27/2657 ,  H04L27/2675 ,  H04L2027/0034 ,  H04L2027/0036

Abstract: Certain aspects of the present disclosure relate to a technique for estimating a frequency offset of a local oscillator using primary synchronization signal (PSS) and secondary synchronization signal (SSS) while initially acquiring a long term evolution (LTE) signal. In certain aspects, a frequency offset estimation procedure may include PSS-based frequency offset estimation and SSS-based frequency offset refinement. The PSS-based frequency offset estimation may include determining a suitable reference PSS and using the ascertained reference PSS to estimate a PSS-based frequency offset. The SSS-based frequency offset refinement may include determining a suitable reference SSS using the PSS based frequency offset and using the ascertained reference SSS to refine PSS-based frequency offset from the PSS-based frequency offset estimation.

Abstract translation: 本公开的某些方面涉及在初始获取长期演进（LTE）信号的同时使用主同步信号（PSS）和辅同步信号（SSS）来估计本地振荡器的频率偏移的技术。 在某些方面，频率偏移估计过程可以包括基于PSS的频偏估计和基于SSS的频偏修正。 基于PSS的频率偏移估计可以包括确定合适的参考PSS并且使用确定的参考PSS来估计基于PSS的频率偏移。 基于SSS的频率偏移精化可以包括使用基于PSS的频率偏移来确定合适的参考SSS，并且使用所确定的参考SSS来从基于PSS的频率偏移估计来精简基于PSS的频率偏移。

公开(公告)号：US20230300671A1

公开(公告)日：2023-09-21

申请号：US17698513

申请日：2022-03-18

Applicant: QUALCOMM Incorporated

Inventor： Yubing Jian ,  Arvind Vardarajan Santhanam ,  Ertugrul Necdet CIFTCIOGLU ,  Arnaud Meylan ,  Reza Shahidi ,  Supratik Bhattacharjee ,  Gautham Hariharan

IPC: H04W28/02

CPC classification number: H04W28/0289 ,  H04W28/0284 ,  H04W28/0236

Abstract: Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a receiving device, such as a user equipment (UE), may reduce packet congestion associated with communications between the receiving device and a transmitting device, such as a server, via a radio access network (RAN). The receiving device may measure congestion metrics associated with receiving data packets from the transmitting device via the RAN. The congestion metrics may include RAN congestion metrics and transport or application layer congestion metrics associated with the network connection between the receiving device and the transmitting device. The receiving device may estimate packet congestion at the receiving device according to the measured congestion metrics. The receiving device may modify connection parameters of the network connection based on the estimated packet congestion. The receiving device may communicate with the transmitting device over the network connection in accordance with the modified connection parameters.