Seamless playback and switching for wireless communications devices
地域：
CA
CA San Jose
摘要
Systems, methods, and devices seamlessly playback data files using one or more wireless connections. Methods include establishing a first wireless connection between a source device and a sink device, the first wireless connection using a first transmission protocol and transmitting audio data via the first wireless connection. Methods further include determining a switch should be initiated based on one or more signal quality metrics, the one or more signal quality metrics representing, at least in part, an estimate of a quality of the first wireless connection. Methods also include switching to a second wireless connection between the source device and the sink device, the second wireless connection using a second transmission protocol, and the second wireless connection using data packets encapsulated for transmission in accordance with the second transmission protocol.
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This application claims the benefit under 35 U.S.C. § 119(e) of US Provisional Patent Application No. 62/981,389 filed on Feb. 25, 2020, which is incorporated herein by reference in its entirety for all purposes.
This disclosure generally relates to wireless communications devices, and more specifically, to seamless playback of data files, such as audio files, between such wireless communications devices.
Wireless communications devices may communicate with each other via one or more communications modalities, such as a Wireless Fidelity (Wi-Fi) connection or a Bluetooth connection. Accordingly, such wireless communication may be implemented in a manner compliant with a wireless communication protocol. Moreover, such wireless communications devices may include various hardware components to facilitate such communication. For example, wireless communications devices may include a Bluetooth radio and a Wi-Fi radio. Conventional techniques for utilizing such radios are limited because they are not able to efficiently and effectively ensure seamless switching between such connections for the purposes of playback of data files, such as audio files.
權(quán)利要求
What is claimed is:1. A method comprising:establishing a first wireless connection between a source device and a sink device, the first wireless connection using a first transmission protocol; establishing a second wireless connection and setting a second transceiver associated with the second wireless connection to a power save mode; transmitting audio data via the first wireless connection; determining, using a processing device, a switch should be initiated based on one or more signal quality metrics, the one or more signal quality metrics representing, at least in part, an estimate of a quality of the first wireless connection; setting the second transceiver and second wireless connection to an active mode; and switching to the second wireless connection using a second transmission protocol, and the switching comprising beginning encapsulation of data packets for transmission in accordance with the second transmission protocol, wherein the data packets comprise Bluetooth Audio/Video Remote Control Profile (A2DP) data packets each encapsulated in a data packet of the second transmission protocol. 2. The method of claim 1 , wherein the first transmission protocol is a Bluetooth transmission protocol, and wherein the second transmission protocol is a Wireless Fidelity (Wi-Fi) transmission protocol. 3. The method of claim 2 , wherein the audio data is transmitted using Bluetooth A2DP data packets, and wherein audio data transmitted on the second wireless connection comprises Bluetooth A2DP data packets encapsulated for transmission using the Wi-Fi transmission protocol. 4. The method of claim 1 , wherein the one or more signal quality metrics include a packet loss value associated with the first wireless connection. 5. The method of claim 1 , wherein the one or more signal quality metrics include a bit error rate value associated with the first wireless connection. 6. The method of claim 5 further comprising estimating the bit error rate based on at least one of an Received Signal Strength Indicator (RSSI) value, a bit reliability value, and a distance between the source device and the sink device. 7. The method of claim 1 , wherein the source device is a music streamer, wherein the sink device is a wireless headset, and wherein the switching is implemented while the wireless headset is playing received audio data. 8. The method of claim 1 , wherein the switching further comprises:transmitting the audio data on both the first wireless connection and the second wireless connection; receiving a switch complete notification from the sink device; and disconnecting the first wireless connection. 9. The method of claim 1 , wherein the first transmission protocol is a Bluetooth Low Energy transmission protocol, and wherein the second transmission protocol is a Wi-Fi transmission protocol. 10. A system comprising:a first transceiver included in a source device and configured to transmit and receive data values via a first wireless connection and in accordance with a Bluetooth transmission protocol; a second transceiver included in the source device and configured to transmit and receive data values via a second wireless connection and in accordance with a Wi-Fi transmission protocol; a first antenna coupled to the first transceiver; a second antenna coupled to the second transceiver; and a processing device comprising one or more processors configured to:establish, via the first transceiver, a first wireless connection between the source device and a sink device; establish, via the second transceiver, a second wireless connection and set the second transceiver to a power save mode; transmit audio data via the first wireless connection; determine a switch should be initiated based on one or more signal quality metrics, the one or more signal quality metrics representing, at least in part, an estimate of a quality of the first wireless connection; set the second transceiver to an active mode; and switch to the second wireless connection, the switching comprising beginning encapsulation of the data packets for transmission in accordance with the Wireless Fidelity (Wi-Fi) transmission protocol, wherein the data packets comprise Bluetooth Audio/Video Remote Control Profile (A2DP) data packets each encapsulated in a data packet of the second transmission protocol. 11. The system of claim 10 , wherein the one or more signal quality metrics include a packet loss value associated with the first wireless connection. 12. The system of claim 11 , wherein the audio data is transmitted using Bluetooth A2DP data packets, and wherein audio data transmitted on the second wireless connection comprises Bluetooth A2DP data packets encapsulated for transmission using the Wi-Fi transmission protocol. 13. The system of claim 10 , wherein the one or more signal quality metrics include a bit error rate value associated with the first wireless connection. 14. The system of claim 10 , wherein the source device is a music streamer, and wherein the sink device is a wireless headset. 15. The system of claim 14 , wherein the switching is implemented while the wireless headset is playing received audio data. 16. A device comprising:a first transceiver included in a source device and configured to transmit and receive data values via a first wireless connection and in accordance with a first transmission protocol; a second transceiver included in the source device and configured to transmit and receive data values via a second wireless connection and in accordance with a second transmission protocol; and a processing device comprising one or more processors configured to:establish, via the first transceiver, a first wireless connection between the source device and a sink device; establish, via the second transceiver, a second wireless connection and set the second transceiver to a power save mode; transmit audio data via the first wireless connection; determine a switch should be initiated based on one or more signal quality metrics, the one or more signal quality metrics representing, at least in part, an estimate of a quality of the first wireless connection; set the second transceiver to an active mode; and switch to the second wireless connection, the switching comprising beginning encapsulation of the data packets for transmission in accordance with the second transmission protocol, wherein the data packets comprise Bluetooth Audio/Video Remote Control Profile (A2DP) data packets each encapsulated in a data packet of the second transmission protocol. 17. The device of claim 16 , wherein the first transmission protocol is a Bluetooth transmission protocol, wherein the second transmission protocol is a Wireless Fidelity (Wi-Fi) transmission protocol, wherein the audio data is transmitted using Bluetooth A2DP data packets, and wherein audio data transmitted on the second wireless connection comprises Bluetooth A2DP data packets encapsulated for transmission using the Wi-Fi transmission protocol. 18. The device of claim 16 , wherein the one or more signal quality metrics include a packet loss value associated with the first wireless connection. 19. The device of claim 16 , wherein the one or more signal quality metrics include a bit error rate value associated with the first wireless connection. 20. The device of claim 16 , wherein the source device is a music streamer, and wherein the sink device is a wireless headset, and wherein the switching is implemented while the wireless headset is playing received audio data.
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