Accommodating interference between wireless streaming and control protocols
Disclosed wireless systems, devices, and methods accommodate interference between different communication protocols. One illustrative wireless communications system embodiment includes: an accessory device and a media device. The accessory device supports a wireless streaming protocol and a wireless control protocol that interferes with the wireless streaming protocol. The media device intermittently communicates with the accessory device via the wireless control protocol while streaming an audio signal to the accessory device via the wireless streaming protocol, limiting a duration of each wireless control protocol communication interval to less than a guaranteed packet loss threshold (which exceeds twice the potential packet loss threshold) of the wireless streaming protocol. The devices may each include a radio module and a controller. The radio module operates in a first wireless mode to support the wireless control protocol, and operates in a second wireless mode to support the wireless streaming protocol, where the first modes are incompatible. The controller switches the radio module between the first and second wireless modes with a first mode duration less than a predetermined threshold.
1. A wireless network device comprising:
a radio module operable in a first wireless mode to support a first communications protocol having intermittent communication intervals, and operable in a second wireless mode to support a second communications protocol, wherein the first wireless mode is incompatible with the second wireless mode, wherein the second communications protocol has packet streaming with:
a packet duration P,
a packet interval duration D,
R repetitions of each packet, R being a positive integer,
Nth-order non-offset interleaving, N being a positive integer, and
a potential packet loss threshold T=NRD−P; and
a controller that switches the radio module between the first and second wireless modes with a first mode duration less than or equal to the potential packet loss threshold of the second communications protocol.
2. The device of claim 1 , wherein the first and second communications protocols couple the device to different remote devices.
3. The device of claim 1 , wherein the first communications protocol is Bluetooth Low Energy (BLE) or IEEE 802.15.4-compliant.
4. The device of claim 1 , wherein the first communications protocol is a wireless control protocol and the second communications protocol is a wireless streaming protocol.
5. The device of claim 4 , wherein the device uses the first communications protocol to receive control settings and uses the second communications protocol to receive an audio signal.
6. The device of claim 5 , wherein the device is an accessory device that intermittently communicates with a media device via the first communications protocol while streaming an audio signal from the media device via the second communications protocol.
7. The device of claim 6 , wherein the device is an earbud, headset, or hearing aid, and the media device is a mobile phone.
8. A wireless network device comprising:
a radio module operable in a first wireless mode to support a first communications protocol having intermittent communication intervals, and operable in a second wireless mode to support a second communications protocol, wherein the first wireless mode is incompatible with the second wireless mode, wherein the second communications protocol has packet streaming with:
a packet duration P,
a packet interval duration D,
R repetitions of each packet, R being a positive integer,
Nth-order non-offset interleaving, N being a positive integer, and
a potential packet loss threshold T=NRD−P; and
a controller that switches the radio module between the first and second wireless modes with a first mode duration less than a predetermined threshold, wherein the controller adjusts a relative timing of the first and second communications protocols, and wherein the predetermined threshold exceeds the potential packet loss threshold but is less than or equal to a guaranteed packet loss threshold of the second communications protocol.
9. The device of claim 8 , wherein the first and second communications protocols couple the device to different remote devices.
10. The device of claim 8 , wherein the first communications protocol is Bluetooth Low Energy (BLE) or IEEE 802.15.4-compliant.
11. The device of claim 8 , wherein the first communications protocol is a wireless control protocol and the second communications protocol is a wireless streaming protocol.
12. The device of claim 11 , wherein the device uses the first communications protocol to receive control settings and uses the second communications protocol to receive an audio signal.
13. The device of claim 12 , wherein the device is an accessory device that intermittently communicates with a media device via the first communications protocol while streaming an audio signal from the media device via the second communications protocol.
14. The device of claim 13 , wherein the device is an earbud, headset, or hearing aid, and the media device is a mobile phone.
15. A method of communicating with co-existing wireless protocols for streaming and control, the method comprising:
communicating a data stream from a transmitting device to a receiving device using a wireless streaming protocol, the wireless streaming protocol providing packet streaming with:
a packet duration P,
a packet interval duration D,
R repetitions of each packet, R being a positive integer,
Nth-order non-offset interleaving, N being a positive integer, and
a potential packet loss threshold T=NRD−P;
dropping portions of the data stream at the transmitting or receiving device to provide intermittent communication intervals for a wireless control protocol; and
communicating a control signal during said intermittent communication intervals, wherein each intermittent communication interval has a duration less than a predetermined threshold, wherein the predetermined threshold is less than or equal to the potential packet loss threshold.
16. A method of communicating with co-existing wireless protocols for streaming and control, the method comprising:
communicating a data stream from a transmitting device to a receiving device using a wireless streaming protocol, the wireless streaming protocol providing packet streaming with:
a packet duration P,
a packet interval duration D,
R repetitions of each packet, R being a positive integer,
Nth-order non-offset interleaving, N being a positive integer, and
a potential packet loss threshold T=NRD−P;
dropping portions of the data stream at the transmitting or receiving device to provide intermittent communication intervals for a wireless control protocol;
communicating a control signal during said intermittent communication intervals, wherein each intermittent communication interval has a duration less than a predetermined threshold; and
adjusting a timing of the intermittent communication intervals relative to packet timing of the data stream, wherein the predetermined threshold is less than or equal to twice a potential packet loss threshold of the wireless streaming protocol.