-
公开(公告)号：US20170086086A1
公开(公告)日：2017-03-23
申请号：US14862985
申请日：2015-09-23
Applicant: QUALCOMM Incorporated
Inventor： Ashok BHATIA , Vishal AGARWAL , Dominic Gerard FARMER , Carlos Horacio ALDANA
CPC classification number: H04W24/10 , H04L43/0864 , H04W64/00 , H04W72/005
Abstract: In one aspect, a method performed by an access point in a wireless local area network (WLAN), includes receiving a first ranging request message from a first device and monitoring for a second ranging request message from a second device on a channel of the WLAN. The first ranging request message includes a device identifier of the first device and the second ranging request message includes a device identifier of the second device. In response to receiving the second ranging request message, the access point combines the device identifier of the first device, first timing information associated with the first ranging request message, the device identifier of the second device, and second timing information associated with the second ranging request message into a single ranging response message. The access point then broadcasts the single ranging response message on the channel of the WLAN.
-
公开(公告)号：US20230137847A1
公开(公告)日：2023-05-04
申请号：US18148837
申请日：2022-12-30
Applicant: QUALCOMM Incorporated
Inventor： Giriraj GOYAL , Vishal AGARWAL , Steven SINGER
IPC: H04W28/04 , H04W12/033
Abstract: The disclosure relates generally to wireless communication, and more particularly to selective relay of data packets. A method includes receiving one or more received data packets from a series of transmitted data packets that are transmitted from a host device over a host piconet during a plurality of listening time slots of the host piconet; receiving a bitmap over a primary/secondary piconet, wherein the bitmap includes a plurality of bitmap portions and each bitmap portion respectively corresponds to one of the plurality of listening time slots of the host piconet; analyzing the received bitmap to identify one or more missed data packets from the series of transmitted data packets that were not received from the host device; and generating a relay list of missed data packets based on the analyzing of the bitmap.
-
公开(公告)号：US20190261293A1
公开(公告)日：2019-08-22
申请号：US16402203
申请日：2019-05-02
Applicant: QUALCOMM Incorporated
Inventor： Jie WU , Daniel Fred FILIPOVIC , Emilija Milorad SIMIC , Vishal AGARWAL
Abstract: System and method for temperature-calibration of a crystal oscillator (XO) in a mobile device. A temperature-calibration status of the XO is determined and a trigger condition related to temperature-calibration of the XO is detected. If the temperature-calibration status of the XO is not fully temperature-calibrated or if the XO has not been previously temperature-calibrated, a temperature-calibration session is initiated by an XO manager based on the condition, wherein a receiver is configured to receive signals and temperature-calibration of the XO is performed in a background mode based on the received signals. The condition based triggering ensures that the XO is temperature-calibrated prior to launch of any position based or global navigation satellite systems (GNSS) based applications on the mobile device. The trigger condition can include first use or power-on, charging, presence in an outdoor environment, variation in operating temperature, pre-specified time, and/or user input pertaining to the mobile device.
-
公开(公告)号：US20180292522A1
公开(公告)日：2018-10-11
申请号：US15481738
申请日：2017-04-07
Applicant: QUALCOMM Incorporated
Inventor： Dirceu CAVENDISH , Ashok BHATIA , Nicolas GRAUBE , Vishal AGARWAL
IPC: G01S13/76 , H04W64/00 , H04L5/00 , G01S13/06 , G01S13/534 , H04W84/12 , G01S13/42 , H04B5/00 , H04L12/26 , G01S5/14
CPC classification number: G01S13/765 , G01S5/14 , G01S13/06 , G01S13/426 , G01S13/534 , H04B5/0043 , H04L5/0055 , H04L9/3247 , H04L9/3297 , H04L43/10 , H04L63/12 , H04L2209/80 , H04W12/00502 , H04W12/06 , H04W64/003 , H04W64/006 , H04W84/12
Abstract: Disclosed are methods, devices, systems, apparatus, servers, media, and other implementations, including a method, performed at a first wireless device, for secure range determination that includes transmitting a first signed message at a first time instance, with the first signed message, including a first payload, configured to be received by a second wireless device at a second time instance, and receiving at a fourth time instance a verifiable acknowledgement message transmitted from the second wireless device at a third time instance in response to the first signed message. The method further includes verifying that the verifiable acknowledgement message originated from the second wireless device, and, responsive to a verification that the verifiable acknowledgement message originated from the second wireless device, transmitting a second signed message including a second payload with at least timing information for the first time instance and the fourth time instance.
-
公开(公告)号：US20160049945A1
公开(公告)日：2016-02-18
申请号：US14827192
申请日：2015-08-14
Applicant: QUALCOMM Incorporated
Inventor： Vishal AGARWAL , Mahadevan Srinivasan
IPC: H03L1/02
Abstract: In some examples, compensating for hysteretic characteristics of a crystal oscillator in a timing circuit includes obtaining a plurality of successive temperature measurements. From the plurality of successive temperature measurements, a temperature gradient having a sign and a magnitude can be determined. A frequency compensation parameter can then be determined based on any combination of two or more factors chosen from a set of factors including a temperature measurement, the sign of the temperature gradient, and the magnitude of the temperature gradient. A frequency error of the timing circuit can then be compensated based on the frequency compensation parameter.
Abstract translation: 在一些示例中，补偿定时电路中的晶体振荡器的滞后特性包括获得多个连续的温度测量。 从多个连续的温度测量可以确定具有符号和幅度的温度梯度。 然后可以基于从包括温度测量，温度梯度的符号和温度梯度的幅度的一组因素中选择的两个或多个因子的任何组合来确定频率补偿参数。 然后可以基于频率补偿参数补偿定时电路的频率误差。
-
Patent Agency Ranking
公开(公告)号：US20140004887A1
公开(公告)日：2014-01-02
申请号：US13774342
申请日：2013-02-22
Applicant: QUALCOMM INCORPORATED
Inventor： Dominic Gerard FARMER , Vishal AGARWAL , Emilija Milorad SIMIC , Daniel Fred FILIPOVIC , Sasidhar MOWA
CPC classification number: H04W56/00 , G01S19/235 , H03L1/022
Abstract: Systems and methods for temperature-calibration of an uncompensated XO in a mobile device during mobile device operation. The XO is temperature-calibrated based on assistance from wireless signals, such as from satellite source, and optionally from terrestrial sources such as WWAN, CDMA, etc. Based on one or more received wireless signals received at a receiver, corresponding frequency estimates of the XO are obtained and correlated with corresponding operating temperatures in a processor. Based on one or more samples of frequency estimates and associated temperatures, the XO is temperature-calibrated in the processor wherein a frequency-temperature (FT) model is formulated for the XO. The frequency of the temperature-calibrated XO can be determined from the FT model at any given temperature.
Abstract translation: 用于移动设备操作期间移动设备中未补偿的XO的温度校准的系统和方法。 基于来自无线信号（例如来自卫星源）和可选地从诸如WWAN，CDMA等地面源的无线信号进行温度校准。基于在接收机处接收到的一个或多个接收到的无线信号，相应的频率估计 获得XO并与处理器中的对应操作温度相关联。 基于频率估计和相关温度的一个或多个样本，XO在处理器中被温度校准，其中为XO制定了频率 - 温度（FT）模型。 温度校准XO的频率可以在任何给定温度下从FT模型确定。
-
公开(公告)号：US20240032122A1
公开(公告)日：2024-01-25
申请号：US18253313
申请日：2021-03-25
Applicant: QUALCOMM Incorporated
Inventor： Benjamin CAMPBELL , Mayank BATRA , Ivan OAKES , Laurent WOJCIESZAK , Dishant SRIVASTAVA , Nitin Raghavendra KIDIYOOR , Vishal AGARWAL , Joel LINSKY , Douglas KOGAN
IPC: H04W76/15 , H04L65/1069 , H04L65/401
CPC classification number: H04W76/15 , H04L65/1069 , H04L65/4015
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first peripheral device may establish, with a user equipment (UE), a first connected isochronous stream (CIS), a second CIS, and a control channel for the first CIS and the second CIS, where the first peripheral device is configured to output audio signals for the first CIS and handle feedback for the first CIS. The first peripheral device may transmit, to a second peripheral device paired with the first peripheral device, an indication that the second peripheral device is to output audio signals for the second CIS and handle feedback for the second CIS. The first peripheral device may receive the first CIS, while maintaining the control channel for the first CIS and the second CIS. Numerous other aspects are described.
-
公开(公告)号：US20210266851A1
公开(公告)日：2021-08-26
申请号：US17316588
申请日：2021-05-10
Applicant: QUALCOMM Incorporated
Inventor： Giriraj GOYAL , Vishal AGARWAL
Abstract: Systems and methods for network coordination are disclosed. A method comprises listening to a primary device during a receiving slot group of a primary/secondary (P/S) piconet shared between the primary device and the secondary device, determining based on the listening during the receiving slot group whether the primary device is attempting to communicate with the secondary device, listening to a host device on a host piconet during a transmitting slot group of the P/S piconet in response to a determination that the primary device is not attempting to communicate with the secondary device, and transmitting to the primary device over the P/S piconet during the transmitting slot group of the P/S piconet in response to a determination that the primary device is attempting to communicate with the secondary device.
-
公开(公告)号：US20200329443A1
公开(公告)日：2020-10-15
申请号：US16843846
申请日：2020-04-08
Applicant: QUALCOMM Incorporated
Inventor： Giriraj GOYAL , Vishal AGARWAL , Nitin Raghavendra KIDIYOOR
Abstract: Systems and methods for Bluetooth voice link shadowing are disclosed. A primary device may receive an eSCO packet from host device over master slot(s) of an enhanced synchronization connection oriented (eSCO) window within an interval of a host piconet shared between the host and primary devices. A secondary device may sniff for the eSCO packet also over master slot(s) of the eSCO window. When the primary device successfully receives the eSCO packet from the host, it may unconditionally relay the packet to the secondary device. Alternatively, it may conditionally relay the packet when the secondary device does not successfully sniff the packet. When the secondary device successfully sniffs the eSCO packet from the host, it may unconditionally relay the packet to the primary device. Alternatively, it may conditionally relay the packet when the primary device does not successfully receive the packet.
-
公开(公告)号：US20200213958A1
公开(公告)日：2020-07-02
申请号：US16234427
申请日：2018-12-27
Applicant: QUALCOMM Incorporated
Inventor： Giriraj GOYAL , Vishal AGARWAL
Abstract: Systems and methods for network coordination are disclosed. A method comprises listening to a primary device during a receiving slot group of a primary/secondary (P/S) piconet shared between the primary device and the secondary device, determining based on the listening during the receiving slot group whether the primary device is attempting to communicate with the secondary device, listening to a host device on a host piconet during a transmitting slot group of the P/S piconet in response to a determination that the primary device is not attempting to communicate with the secondary device, and transmitting to the primary device over the P/S piconet during the transmitting slot group of the P/S piconet in response to a determination that the primary device is attempting to communicate with the secondary device.
-
-
-
-
-
-
-
-
-
Search Results
23
records
(took 0.018 seconds)
