Qualcomm Incorporated

Nitin Raghavendra Kidiyoor

Giriraj Goyal

Vishal Agarwal

Sourabh Jana

Naveenraj Subramanian

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an assisting wireless device may track a first retransmission metric that is based on a number of retransmitted packets that the assisting wireless device received from a source device. The assisting wireless device may receive, from a sink wireless device, an acknowledgement assistance request indicating a second retransmission metric for the sink wireless device. The assisting wireless device may transmit, to the sink wireless device, a response to the acknowledgement assistance request based on respective values of the first retransmission metric and the second retransmission metric. Numerous other aspects are described.

Assisted acknowledgement for wireless streaming

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first peripheral device may receive audio stream packets sniffed from an owner audio stream assigned to a second peripheral device paired with the first peripheral device. The first peripheral device may receive a synchronization message from the second peripheral device that includes an owner packet bitmap that identifies packets in the owner audio stream. The first peripheral device may identify missed packets that the first peripheral device missed from the owner audio stream, based on a result of a comparison of the owner packet bitmap and a sniffer packet bitmap that identifies sniffed audio stream packets. The first peripheral device may transmit a response message indicating the missed packets. Numerous other aspects are described.

Techniques for stereo on peripheral devices

An apparatus may receive, from a second device over a first communications link, a first bitmap indicating a first set of packets received by the second device from a third device; determine a second bitmap indicating a second set of packets received by the first device from the third device, each of the first set of packets and the second set of packets comprising at least a fragment of a PDU; transmit, to the second device, information indicating a third set of packets based on the first bitmap and based on the second bitmap, the third set of packets being unsuccessfully received by the first device from the third device; and receive a fourth set of packets from the second device based on transmission of the information indicating the third set of packets, the fourth set of packets including information from the third set of packets.

System and method for construction of a protocol data unit using selective relay

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.

Bluetooth voice link mirroring

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.

Retransmission and new packet detection in wireless systems

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.

Growing community of inventors

Bengaluru, India

Nitin Raghavendra Kidiyoor