Qualcomm Incorporated

Qualcomm Technologies International, Ltd.

Benjamin Campbell

Mayank Batra

Dishant Srivastava

Robin Heydon

Laurent Wojcieszak

Steven Singer

Harith Haboubi

Jonathon Sole

Joel Linsky

Ahmed Ragab Elsherif

Nicholas G Jones

Richard Turner

Laurence George Richardson

Srivathsa Sridhara

Srikant Kuppa

Ravi Shekhar

Derrick Chu Lin

Richard Cardoe

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device (WCD) may communicate, via a wireless link, with an audio device using a first configuration having first values for communication parameters. The WCD may transmit an indication to switch to a second configuration based at least in part on a configuration switch trigger, the configuration switch trigger being based at least in part on one or more of a link quality metric associated with the wireless link or a change of a use state of the WCD, and the second configuration having second values for the communication parameters associated with a reduction in voltage-induced interference in an audio output of the audio device. Numerous other aspects are described.

Configuration switch triggers for audio device communications

A device includes one or more processors configured to execute instructions to obtain, at a first audio output device, first spatial audio data and a first reference time associated, and to cause the first reference time and data representing at least a portion of the first spatial audio data to be transmitted from the first audio output device. The instructions further cause the one or more processors to receive, at the first audio output device from a second audio output device, second spatial audio data and a second reference time. The instructions further cause the one or more processors to, based on the first reference time and the second reference time, time-align the first spatial audio data and the second spatial audio data to generate combined audio data representing a three-dimensional (3D) sound field and to generate audio output based on the combined audio data.

Spatial audio data exchange

Reduced Advanced Audio Distribution Profile (A2DP) latency on a link between a source and a pair of headphones may be achieved by improving the quality of the link between secondary and primary and establishing a direct link between the source and secondary to mitigate the link quality issues of the source and primary link. In one example, this involves receiving, via a first receiver, packets from a source on a first wireless connection, determining, by the first receiver, that a first packet received via the first wireless connection has an error, establishing a second connection between the first receiver and a second receiver, and establishing a third connection between the second receiver and the source. In particular, the first receiver may be configured as a primary True Wireless Stereo (TWS) Bluetooth device and the second receiver may be configured as a secondary TWS Bluetooth device.

Latency reduction

Two devices (e.g., two wireless Bluetooth earbuds) may exchange device address information (e.g., Bluetooth address information) and may identify a primary address. When either of the devices connect to a source device (e.g., a phone), the primary address may be used by the connecting device such that the pair of devices appear as a single device (e.g., a Bluetooth-pairable device) to the source device, regardless of the device connecting to the source device as the primary device. The primary device may then send identity information (e.g., that has been exchanged with the secondary device) to the source device, such that the source device may connect to either of the two devices. Further, once a primary device connects to the source device, the primary device may transmit, to the secondary device, connection information such that the secondary device may connect to the source device and operate in the primary role.

Address management for Bluetooth devices

Methods, systems, and devices for wireless communications are described. One method may include determining that a quality condition of a primary Bluetooth-enabled device is lower than a quality condition of a secondary Bluetooth-enabled device. The primary Bluetooth-enabled device may transmit, to the secondary Bluetooth-enabled device, a handover request message based on the determining. The handover request message may include a subset of connection information associated with a connection between the primary Bluetooth-enabled device and a device in wireless communications with the primary Bluetooth-enabled device. The primary Bluetooth-enabled device may receive, from the secondary Bluetooth-enabled device, a handover response message based on the handover request message. As a result, the primary Bluetooth-enabled device may handover, to the secondary Bluetooth-enabled device, at least one logical transport channel of the set of logical transport channels based on the handover response message.

Handover of extended synchronous connection-oriented logical transport channel

A device capable of operating according to a wireless communications protocol, the device being configured to: receive media data from one of a plurality of inputs; determine an offset period of time in dependence on which one of the plurality of inputs the media data is received from; determine a time for playing the received media data in dependence on the determined offset period and a clock value; encapsulate the media data and time data representing the determined time in a broadcast packet; and broadcast the packet in accordance with the wireless communications protocol.

Time to play

A device capable of operating according to a wireless communications protocol, the device being configured to: receive audio data from an audio data source; generate volume control data for controlling the playback volume of the audio data; encapsulate the audio data and volume control data in a broadcast packet; and broadcast the packet in accordance with the wireless communications protocol.

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Bury St Edmunds, United Kingdom

Benjamin Campbell