Information handling system and peripheral wakeup radio interface configuration
An information handling system wirelessly interfaces with a peripheral device, such as a keyboard or mouse, through primary radios that have a communication protocol, such as Bluetooth. Secondary radios interface with their associated primary radio to provide a low power wake and sleep using wake and sleep signals sent between the secondary radios. A sleep command communicated through the primary radios is acknowledged with the secondary radios to confirm operation of the secondary radios before a subsequent wake command transmits while in the sleep state.
1. An information handling system comprising:
a housing;
a processor disposed in the housing and operable to execute instructions to process information;
a memory disposed in the housing and interfaced with the processor, the memory operable to store the instructions and information;
a wireless interface module having a primary radio, a secondary radio and a processing resource; and
a peripheral device separate from the housing and configured to accept end user inputs, the peripheral device including a peripheral wireless interface module having a peripheral primary radio, a peripheral secondary radio and a peripheral processing resource, the peripheral device operable to convert the end user inputs to user input information and to transmit the user input information with the peripheral primary radio to the wireless interface module primary radio; and
a non-transient memory integrated in the peripheral device and storing peripheral instructions that when executed on the peripheral processing resource:
receive a sleep command with the peripheral primary radio from the primary radio in a wireless personal area network protocol;
in response to the sleep command, send an acknowledgement of the sleep command with the peripheral secondary radio;
in response to the sleep command, sleep the peripheral primary radio and the peripheral processing resource; and
in response to the sleep command, monitor for a wake command with the peripheral secondary radio.
2. The information handling system of claim 1 further comprising:
a non-transient memory integrated in the housing and storing wireless interface instructions that when executed on the peripheral processing resource:
transmits the sleep command with the primary radio in response to a predetermined condition;
receives the acknowledgement of the sleep command with the secondary radio;
in response to the acknowledgement of the sleep command, sleeps the primary radio and the processing resource; and
in response to the acknowledgement of the sleep command, monitor for a wake command with the secondary radio.
3. The information handling system of claim 2 wherein the predetermined condition comprises a power down of the processor.
4. The information handling system of claim 3 wherein the peripheral instructions further:
detect an end user interaction at the peripheral device; and
in response to the end user interaction, transmit the wake command.
5. The information handling system of claim 4 wherein the wireless interface instructions further:
wake the processing resource in response to the wake command; and
issue a command from the processing resource to wake the processor.
6. The information handling system of claim 1 wherein:
the wireless interface instructions and the peripheral instructions cooperate to define wireless personal area network pairing information to establish a wireless personal area network pairing of the wireless interface module and the peripheral device with only the primary radio and peripheral primary radio; and
each of the wireless interface instructions and the peripheral instructions apply the wireless personal area network pairing information to generate the wake command.
7. The information handling system of claim 6 wherein the wake command comprises information modulated with an On-Off Keying protocol and including at least some of the wireless personal area network pairing information.
8. The information handling system of claim 6 wherein the secondary radion and the peripheral secondary radio only transmit the wake command and acknowledgements of the wake command.
9. The information handling system of claim 6 wherein the peripheral comprises a keyboard.
10. A method for managing information handling system peripheral power, the method comprising:
communicating pairing information of a wireless personal area network protocol between the information handling system and the peripheral;
applying the pairing information to communicate user information generated as user inputs from a first primary radio at the peripheral to a second primary radio at the information handling system with a wireless personal area network protocol;
applying the pairing information to define a wake command for communication between first secondary radio at the peripheral and a second secondary radio at the information handling system;
communicating a sleep command from one of the first and second primary radios to the other of the first and second primary radios; and
acknowledging the sleep command through the first and second secondary radios.
11. The method of claim 10 further comprising:
in response to the sleep command, powering down the first and second primary radios; and
monitoring for the wake command with the first and second secondary radios.
12. The method of claim 11 further comprising:
communicating user inputs detected at the peripheral to the information handling system through the first and second primary radios; and
communicating the wake command only through the first and second secondary radios.
13. The method of claim 11 further comprising:
in response to the sleep command, powering down a central processing unit of the information handling system; and
in response to the wake command received at the second secondary radio of the information handling system from the first secondary radio of the peripheral, powering up the central processing unit.
14. The method of claim 10 further comprising:
communicating the pairing information of the wireless personal area network protocol between the information handling system and plural peripherals; and
applying the pairing information to define the wake command for each of the plural peripherals individually and a group wake command all of the plural peripherals.
15. The method of claim 10 further comprising:
applying the pairing information to define an area wake command; and
monitoring for the area wake command with plural peripherals disposed in a predetermined area.
16. The method of claim 10 further comprising:
monitoring signal strength of wireless signals communicated by the first and second primary radios; and
applying the signal strength to define a data rate of a wireless signal for communication of the wake command.
17. The method of claim 10 wherein the peripheral comprises an Internet of things device.
18. A peripheral comprising:
a housing having an input device configured to accept inputs from a user;
a peripheral processing resource interfaced with the input device to generate user input information from the inputs;
a peripheral primary radio disposed in the housing and interfaced with the peripheral processing resource and operable to transmit the user input information with a first wireless protocol;
a peripheral secondary radio interfaced with the peripheral processing resource and operable to receive a wake command; and
non-transitory memory interfaced with the peripheral processing resource and storing instructions that when executed on the peripheral processing resource:
receives a sleep command through the peripheral primary radio;
in response to the sleep command, transmits an acknowledgement of the sleep command with the peripheral secondary radio;
in response to the sleep command, sleeps the peripheral processing resource and the peripheral primary radio; and
in response to the sleep command, monitors for the wake command with the peripheral secondary radio.
19. The peripheral of claim 18 wherein the wake command includes at least a first wake command to wake the peripheral individually and a second wake command to wake the peripheral as part of a group of plural peripherals.
20. The peripheral of claim 17 wherein:
the input device inputs wake the peripheral processing resource from sleep: and
the instructions command the peripheral secondary radio to transmit the wake command in response to input device inputs.