Coexistence management in wireless communications

1. A method comprising:

determining traffic priority information of a first wireless network that includes a first radio configured to communicate according to a first communication protocol on a plurality of overlapping channels;

determining an operating mode of a second radio as a power save operating mode based on the traffic priority information of the first wireless network, the second radio included in a second wireless network and configured to communicate according to a second communication protocol on the plurality of overlapping channels, the power save operating mode configured to avoid interference on the plurality of overlapping channels with traffic in the first wireless network;

operating the second radio in the determined power save operating mode; and

receiving a notification through a third radio of a third wireless network that indicates that a client device included in the second wireless network has traffic to send to the second radio with a higher priority than the traffic in the first wireless network, the third radio configured to communicate according to a third communication protocol that is different than the first and second communication protocols.

2. The method of claim 1 , further comprising, in response to the notification, changing operation of the second radio in the second wireless network from the power save operating mode to a normal operating mode to receive the traffic from the client device.

3. The method of claim 1 , wherein at least one of:

the second radio is co-located with the first radio; or

the third radio is co-located with the second radio.

4. The method of claim 1 , further comprising notifying one or more client devices in the second wireless network that the second radio is operating in the power save operating mode so the client devices do not send traffic over the second wireless network while the second radio is in the power save operating mode.

5. The method of claim 4 , wherein notifying the one or more client devices in the second wireless network that the second radio is operating in the power save operating mode comprises the second radio setting a power save bit to notify the one or more client devices that the second radio is in the power save operating mode.

6. The method of claim 1 , wherein:

determining traffic priority information of the first wireless network that includes the first radio configured to communicate according to the first communication protocol comprises determining traffic priority information of a wireless personal area network (WPAN) that includes a WPAN radio configured to communicate according to one of a Bluetooth protocol, a ZigBee protocol, or a Thread protocol; and

determining the operating mode of the second radio comprises determining the operating mode of a wireless local area network (WLAN) radio configured to communicate according to an IEEE 802.11 protocol.

7. A wireless communication device, comprising:

a first radio configured to communicate in a first wireless network according to a first communication protocol on a plurality of overlapping channels;

a second radio co-located with the first radio and configured to communicate in a second wireless network according to a second communication protocol on the plurality of overlapping channels;

a third radio configured to communicate in a third wireless network according to a third communication protocol that is different than the first and second communication protocols; and

a coexistence management circuit coupled to the first radio and the second radio, the coexistence management circuit configured to:

determine traffic priority information of the first wireless network;

determine an operating mode of the second radio as a power save operating mode based on the traffic priority information of the first wireless network, the power save operating mode configured to avoid interference on the plurality of overlapping channels with traffic in the first wireless network;

operate the second radio in the determined power save operating mode; and

receive a notification through the third radio that indicates that a client device included in the second wireless network has traffic to send to the second radio with a higher priority than the traffic in the first wireless network.

8. The wireless communication device of claim 7 , wherein the coexistence management circuit is further configured, in response to the notification, to change operation of the second radio in the second wireless network from the power save operating mode to a normal operating mode to receive the traffic from the client device.

9. The wireless communication device of claim 7 , wherein the coexistence management circuit is further configured to notify one or more client devices in the second wireless network that the second radio is operating in the power save operating mode so the client devices do not send traffic over the second wireless network while the second radio is in the power save operating mode.

10. The wireless communication device of claim 9 , wherein the coexistence management circuit is configured to notify the one or more client devices in the second wireless network that the second radio is operating in the power save operating mode by the second radio setting a power save bit to notify the one or more client devices that the second radio is in the power save operating mode.

11. The wireless communication device of claim 7 , wherein:

the first wireless network comprises a wireless personal area network (WPAN);

the first radio comprises a WPAN radio;

the first communication protocol comprises one of a Bluetooth protocol, a ZigBee protocol, or a Thread protocol;

the second wireless network comprises a wireless local area network (WLAN);

the second radio comprises a WLAN radio; and

the second communication protocol comprises an IEEE 802.11 protocol.