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公开(公告)号：US10819489B2
公开(公告)日：2020-10-27
申请号：US16207991
申请日：2018-12-03
Applicant: QUALCOMM Incorporated
Inventor： Vishal Agarwal , Giriraj Goyal
Abstract: Methods, systems, and devices for real-time ACK/NACK are described. The method includes a primary wireless device receiving a transmission from a source wireless device over a wireless link established between the source wireless device and the primary wireless device, determining whether the primary wireless device correctly received a data packet during the transmission, determining whether a first indication of ACK is received from a secondary wireless device during a time gap after receiving the transmission from the source wireless device, the first indication associated with the transmission between the source wireless device and the primary wireless device, and sending a second indication of ACK or NACK to the source wireless device based on whether the primary wireless device correctly received the data packet and whether the first indication is received from the secondary wireless device during the time gap.
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公开(公告)号：US20200266927A1
公开(公告)日：2020-08-20
申请号：US16277481
申请日：2019-02-15
Applicant: QUALCOMM Incorporated
Inventor： Giriraj Goyal , Vishal Agarwal , Nitin Raghavendra Kidiyoor
Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for receiving a first packet comprising a first sequence number (SEQN) and a second packet comprising a second SEQN, and obtaining a first hash for the first packet and a second hash for the second packet. The receiving device may classify the second packet as one of a new packet or a retransmission of the first packet based on a comparison between the first SEQN and the second SEQN and a comparison between the first hash and the second hash. The receiving device may selectively process the payload of the second packet based on the classifying.
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公开(公告)号：US20200221336A1
公开(公告)日：2020-07-09
申请号：US16239450
申请日：2019-01-03
Applicant: QUALCOMM Incorporated
Inventor： Giriraj Goyal , Vishal Agarwal , Steven Singer
Abstract: The disclosure relates generally to wireless communication, and more particularly to selective relay of data packets. A method includes listening to a host device in one or more listening time slots of a host piconet, identifying one or more bitmap portions of a bitmap, wherein the identified one or more bitmap portions corresponds to the one or more listening time slots of the host piconet, determining whether a data packet having a data packet payload is effectively received from the host device during the one or more listening time slots, and populating the bitmap with one or more corresponding signifiers.
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公开(公告)号：US10375504B2
公开(公告)日：2019-08-06
申请号：US15840917
申请日：2017-12-13
Applicant: QUALCOMM Incorporated
Inventor： Srivathsa Sridhara , Ravi Shekhar , Vishal Agarwal , Giriraj Goyal
IPC: H04S7/00 , H04B17/318 , H04W4/80
Abstract: There is a need to enable a wireless device to output signals such that the natural instincts of the user may be triggered. The present disclosure provides a solution by enabling a wireless device to determine a time delay and intensity difference associated with an audio output at a subset output devices based at least in part on a perceived spatial placement of at least one signal, a position of the transmitting device, and/or a signal strength associated with the signal. Using the time delay and the intensity difference, the output devices farthest from the transmitting device may output the at least one signal using the time delay and the intensity difference such that the user may detecting differences in the sound wave's time of arrival and intensity at the left ear versus the right ear, and thus, perceive the location of the audio source.
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公开(公告)号：US08994466B2
公开(公告)日：2015-03-31
申请号：US13829603
申请日：2013-03-14
Applicant: QUALCOMM Incorporated
Inventor： Daniel Fred Filipovic , Sasidhar Movva , Vishal Agarwal , Dominic Gerard Farmer , Sridhar Bandaru
Abstract: Methods, apparatuses, systems and computer-readable media for addressing the aging of oscillation (XO) crystals are presented. Some embodiments may determine a change of age of the XO crystal since last prior use of the XO crystal. Embodiments may then determine that at least one calibration parameter is not suitable for use in at least one calibration technique of the XO crystal, based on the change of age of the XO crystal. Embodiments may then determine at least one fresh calibration parameter configured to update the at least one calibration parameter for suitable use in the at least one calibration technique of the XO crystal.
Abstract translation: 提出了用于解决振荡（XO）晶体老化的方法，装置，系统和计算机可读介质。 一些实施方案可以确定自上次使用XO晶体以来XO晶体的年龄变化。 然后，实施例可以基于XO晶体的年龄变化来确定至少一个校准参数不适用于XO晶体的至少一个校准技术。 实施例然后可以确定至少一个新的校准参数，其被配置为更新所述至少一个校准参数，以便在XO晶体的至少一个校准技术中适合使用。
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Patent Agency Ranking
公开(公告)号：US11653318B2
公开(公告)日：2023-05-16
申请号：US17316588
申请日：2021-05-10
Applicant: QUALCOMM Incorporated
Inventor： Giriraj Goyal , Vishal Agarwal
CPC classification number: H04W56/001 , H04L5/0055 , H04W36/0016 , H04W84/20
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.
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公开(公告)号：US11115902B2
公开(公告)日：2021-09-07
申请号：US16128235
申请日：2018-09-11
Applicant: QUALCOMM Incorporated
Inventor： Srivathsa Sridhara , Vishal Agarwal
Abstract: Methods, systems, and devices for wireless communications are described. A device may communicate with a second device, which may be a Bluetooth device, using a relay profile (e.g., a low energy (LE) isochronous (ISO) relay profile). In accordance with broadcast discovery signaling by the device and decisions made by the Bluetooth device, the device may synchronize to a broadcast isochronous stream (BIS) from another device. The device may then establish a communication link with the second device (e.g., a synchronous connection oriented (SCO) link, an enhanced synchronous connection oriented (eSCO) link, an asynchronous connection less (ACL) link) to be used for relay of the BIS. The device may then convert, based on the relay profile, broadcast isochronous data packets of the BIS to SCO packets, eSCO packets, and/or ACL packets, and relay the converted packets to the second device via the established communication link.
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公开(公告)号：US10887051B2
公开(公告)日：2021-01-05
申请号：US16239361
申请日：2019-01-03
Applicant: QUALCOMM Incorporated
Inventor： Vishal Agarwal , Giriraj Goyal
Abstract: Methods, systems, and devices for real time error recovery are described. The method may include a wireless device, such as a secondary wireless device, communicatively linked with another wireless device, such as a primary wireless device, and may include the wireless device identifying a first nonce value that is set based on a first packet counter value associated with a data packet stream between a source wireless device and the other wireless device, identifying a second nonce value that is set based on a second packet counter value associated with the data packet stream, receiving a first packet from the data packet stream, determining a sequence number for the first packet based on receiving the first packet, and decrypting the first packet using the first nonce value or the second nonce value based on the sequence number for the first packet.
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公开(公告)号：US10701171B2
公开(公告)日：2020-06-30
申请号：US16133544
申请日：2018-09-17
Applicant: QUALCOMM Incorporated
Inventor： Vishal Agarwal , Jagdeep Kumar Hans
Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may transmit a smart friend request message to a set of nodes in the wireless mesh network. The set of nodes may be associated with a friend feature that may include maintaining one or more element messages intended for the first node when the first node is in a low power state. Each of the one or more element messages intended for the first node may include an element address corresponding to an element at the first node. The smart friend request message may indicate a hierarchy of element addresses to maintain at the second node. The apparatus may operate in the low power state during which the second node maintains the one or more element messages for the first node based at least in part on the hierarchy of element addresses.
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公开(公告)号：US09907035B2
公开(公告)日：2018-02-27
申请号：US13784046
申请日：2013-03-04
Applicant: QUALCOMM Incorporated
Inventor： Jie Wu , Daniel Fred Filipovic , Emilija Milorad Simic , Vishal Agarwal
CPC classification number: H04W56/00 , G01S19/235 , H03L1/022
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.
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