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公开(公告)号：US11582638B2
公开(公告)日：2023-02-14
申请号：US16239450
申请日：2019-01-03
Applicant: QUALCOMM Incorporated
Inventor： Giriraj Goyal , Vishal Agarwal , Steven Singer
IPC: H04W28/04 , H04W12/033 , H04W84/18
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：US10912146B2
公开(公告)日：2021-02-02
申请号：US15712720
申请日：2017-09-22
Applicant: QUALCOMM Incorporated
Inventor： Giriraj Goyal , Ravi Shekhar , Vishal Agarwal , Srivathsa Sridhara
Abstract: The disclosure relates to performing a reliable broadcast from a source device to a plurality of nodes. In an aspect, a representative node establishes a first wireless communication link with each of one or more non-representative nodes, receives, from each of the one or more non-representative nodes, information indicating an ability of the one or more non-representative nodes to sniff wireless communications, establishes a second wireless communication link with the source device, configures the second wireless link based on the information received from the one or more non-representative nodes, sends control information for the second wireless communication link to each of the one or more non-representative nodes, and receives communications from the source device over the second wireless communication link, wherein the one or more non-representative nodes sniff the communications on the second wireless communication link based on the control information for that link.
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公开(公告)号：US10887765B2
公开(公告)日：2021-01-05
申请号：US16048613
申请日：2018-07-30
Applicant: QUALCOMM Incorporated
Inventor： Vishal Agarwal , Giriraj Goyal
Abstract: A method for relay protection using authentication packets in Bluetooth communications is described. The method includes establishing, by a first wireless device, a Bluetooth communication connection to a second wireless device. The method also includes generating, by the first wireless device, an encrypted authentication packet that includes authentication information and a message integrity check (MIC). The method also includes transmitting, by the first wireless device, the encrypted authentication packet to the second wireless device.
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公开(公告)号：US20200037157A1
公开(公告)日：2020-01-30
申请号：US16048613
申请日：2018-07-30
Applicant: QUALCOMM Incorporated
Inventor： Vishal Agarwal , Giriraj Goyal
Abstract: A method for relay protection using authentication packets in Bluetooth communications is described. The method includes establishing, by a first wireless device, a Bluetooth communication connection to a second wireless device. The method also includes generating, by the first wireless device, an encrypted authentication packet that includes authentication information and a message integrity check (MIC). The method also includes transmitting, by the first wireless device, the encrypted authentication packet to the second wireless device.
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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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Patent Agency Ranking
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：US11553343B2
公开(公告)日：2023-01-10
申请号：US16218396
申请日：2018-12-12
Applicant: QUALCOMM Incorporated
Inventor： Vishal Agarwal , Huibert Denboer , Giriraj Goyal
Abstract: The apparatus receives a first PDU and a first CRC that is based on the first PDU. The first PDU is encrypted based on a first nonce. The apparatus decrypts the first PDU to obtain a first payload and a first cipher stream. The apparatus soft combines the decrypted first payload with a decrypted set of payloads. The set of payloads have been encrypted based on at least one nonce different than the first nonce. The apparatus generates a second CRC based on the soft combined decrypted payloads and based on the first cipher stream. The apparatus determines whether the generated second CRC for the soft combined decrypted payloads passes a CRC check against the first CRC.
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公开(公告)号：US20210250225A1
公开(公告)日：2021-08-12
申请号：US16783343
申请日：2020-02-06
Applicant: QUALCOMM Incorporated
Inventor： Vishal Agarwal , Giriraj Goyal
IPC: H04L12/24 , H04L1/00 , H04L5/00 , H04L12/801
Abstract: Methods, systems, and devices for dynamic link recovery are described. Generally, a first device may transmit a first packet to a second device using a first set of transmission parameters, and may monitor for a feedback message from the second device. The first device may not receive a feedback message, and may therefore generate a second packet with the same sequence number as the first packet, and may introduce an error to the second packet that will trigger a feedback message from the second device, and may transmit the second packet to the second device using second transmission parameters (e.g., that are more robust than the first transmission parameters). The first device may monitor for and receive a feedback message from the second device.
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公开(公告)号：US20200322092A1
公开(公告)日：2020-10-08
申请号：US16376795
申请日：2019-04-05
Applicant: QUALCOMM Incorporated
Inventor： Giriraj Goyal , Vishal Agarwal , Nitin Raghavendra Kidiyoor
IPC: H04L1/16 , H04L1/00 , H04L12/801 , H04L5/00
Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for sniffing, by a secondary wireless audio device, a first packet (including a first sequence number (SEQN) associated with a primary wireless audio device) from a source device to the primary wireless audio device. The secondary wireless audio device may increment a packet counter based on sniffing the first packet, and may receive a second packet (including a second SEQN associated with the secondary wireless audio device) from the source device. The secondary wireless audio device may transmit an acknowledgement (ACK) message corresponding to the second packet, and may increment its packet based thereon. In some examples, both the primary wireless audio device and the second wireless audio device may alternate between transmitting ACK messages for owned SEQNs.
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公开(公告)号：US10735139B1
公开(公告)日：2020-08-04
申请号：US16277481
申请日：2019-02-15
Applicant: QUALCOMM Incorporated
Inventor： Giriraj Goyal , Vishal Agarwal , Nitin Raghavendra Kidiyoor
IPC: H04L1/00 , H04L5/00 , H04L12/801 , H04L12/743 , H04W56/00 , H04L1/16
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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