Systems, methods, and devices for protection management-based coexistence enhancement in wireless devices
Systems, methods, and devices enhance performance of collocated transceivers in wireless devices. Methods include identifying, using a processing device, an assertion of a radio frequency (RF) active signal, canceling activity of a first transceiver in response to identifying the assertion of the RF active signal, the RF active signal being associated with a second transceiver collocated with the first transceiver, and generating, using the processing device, a network allocation vector (NAV) reset signal in response to identifying a de-assertion of the RF active signal, the NAV reset signal resetting a timer of a wireless device comprising the first transceiver and the second transceiver.
1 . A method comprising:
identifying, using a processing device, an assertion of a radio frequency (RF) active signal;
canceling activity of a first transceiver in response to identifying the assertion of the RF active signal, the RF active signal being associated with a second transceiver collocated with the first transceiver; and
generating, using the processing device, a network allocation vector (NAV) reset signal in response to identifying a de-assertion of the RF active signal, the NAV reset signal resetting a timer of a wireless device in which the first transceiver and the second transceiver are collocated, the generating of the NAV reset signal further comprising generating a control frame in response to identifying the de-assertion of the RF active signal.
2 . The method of claim 1 further comprising:
generating a protection frame in response to identifying the assertion of the RF active signal.
3 . The method of claim 2 , wherein the generating of the control frame is triggered by a termination of the RF active signal.
4 . The method of claim 3 , wherein the protection frame is a CTS-to-Self frame, and wherein the control frame is a CF-End frame.
5 . The method of claim 4 , wherein the CTS-to-Self frame comprises a duration field identifying a period of time for which activity of the first transceiver is suspended.
6 . The method of claim 4 , further comprising:
resetting a NAV timer in response to receiving the CF-End frame.
7 . The method of claim 6 , wherein the generating of the NAV reset signal comprises:
transmitting the CF-End frame to a plurality of peer devices.
8 . The method of claim 7 further comprising:
resetting NAV timers of the plurality of peer devices.
9 . The method of claim 1 , wherein the first transceiver is compatible with a Wi-Fi communications protocol, and wherein the second transceiver is compatible with a Bluetooth protocol.
10 . A system comprising:
a first transceiver configured to be compatible with a first wireless communications protocol;
a second transceiver collocated with the first transceiver and configured to be compatible with a second wireless communications protocol; and
processing elements coupled to the first transceiver and the second transceiver, the processing elements being configured to:
identify an assertion of a radio frequency (RF) active signal associated with the second transceiver;
cancel activity of the first transceiver in response to identifying the assertion of the RF active signal; and
generate a NAV reset signal in response to identifying a de-assertion of the RF active signal, the NAV reset signal resetting a timer associated with the first transceiver, the generating of the NAV reset signal further comprising generating a control frame in response to identifying the de-assertion of the RF active signal.
11 . The system of claim 10 , wherein the processing elements are further configured to:
generate a protection frame in response to identifying the assertion of the RF active signal; and
wherein the generating of the control frame is triggered by a termination of the RF active signal.
12 . The system of claim 11 , wherein the protection frame is a CTS-to-Self frame, wherein the control frame is a CF-End frame, and wherein the CTS-to-Self frame comprises a duration field identifying a period of time for which activity of the first transceiver is suspended.
13 . The system of claim 12 , wherein the processing elements are further configured to:
reset a NAV timer in response to receiving the CF-End frame.
14 . The system of claim 12 , wherein the processing elements are further configured to:
transmit the CF-End frame to a plurality of peer devices, wherein the plurality of peer devices is configured to reset their NAV timers in response to receiving the CF-End frame.
15 . The system of claim 10 , wherein the first transceiver is configured to be compatible with a Wi-Fi communications protocol, and wherein the second transceiver is configured to be compatible with a Bluetooth protocol.
16 . A device comprising:
processing elements configured to:
identify an assertion of a radio frequency (RF) active signal;
cancel activity of a first transceiver in response to identifying the assertion of the RF active signal, the RF active signal being associated with a second transceiver collocated with the first transceiver; and
generate a NAV reset signal in response to identifying a de-assertion of the RF active signal, the NAV reset signal resetting a timer of a wireless device in which the first transceiver and the second transceiver are collocated, the generating of the NAV reset signal further comprising generating a control frame in response to identifying the de-assertion of the RF active signal.
17 . The device of claim 16 , wherein the processing elements are further configured to:
generate a protection frame in response to identifying the assertion of the RF active signal; and
wherein the generating of the control frame is triggered by a termination of the RF active signal.
18 . The device of claim 17 , wherein the protection frame is a CTS-to-Self frame, wherein the control frame is a CF-End frame, and wherein the CTS-to-Self frame comprises a duration field identifying a period of time for which activity of the first transceiver is suspended.
19 . The device of claim 18 , wherein the processing elements are further configured to:
reset a NAV timer in response to receiving the CF-End frame.
20 . The device of claim 18 , wherein the processing elements are further configured to:
transmit the CF-End frame to a plurality of peer devices, wherein the plurality of peer devices is configured to reset their NAV timers in response to receiving the CF-End frame.