Methods and apparatus for improving peer communications using an active communication mode
First Claim
1. A method of wireless communications, comprising:
- detecting a field generated by a remote near field communication (NFC) device within an operating volume of an NFC device;
establishing a peer communication link with the remote NFC device using an active communication mode, wherein the peer communication link is deselected after being established while being maintained;
determining that the peer communication link with the remote NFC device is to be reactivated;
transmitting a wakeup request message to the remote NFC device to reactivate the peer communication link; and
performing a radio frequency (RF) collision avoidance process on one or more wakeup responses received from the remote NFC device in response to transmission of the wakeup request message, wherein the performing the RF collision avoidance process further comprises;
determining whether an active communication mode flag has been set; and
transmitting a message to the remote NFC device without performing the RF collision avoidance process before the transmitting message based on a determination that the active communication mode flag has not been set.
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Accused Products
Abstract
Aspects disclosed herein relate to providing peer communications between NFC enabled devices using an active communication mode. In one example, a communications device is equipped to detect a remote NFC device field within an operating volume, establish a peer communication link with the remote NFC device using an active communication mode, determine that the peer communication link is to be deselected, and transmit a deselection request message to the remote NFC device indicating to the remote NFC device that it has been deselected while maintaining the peer communication link. In another example, a communications device is equipped to sense an operating volume, as part of an active communication mode collision avoidance procedure, determine that no field is sensed, initiate an unmodulated carrier as part of switching an operating field to an on state, and maintain the unmodulated carrier for a collision avoidance threshold duration of time.
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Citations
28 Claims
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1. A method of wireless communications, comprising:
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detecting a field generated by a remote near field communication (NFC) device within an operating volume of an NFC device; establishing a peer communication link with the remote NFC device using an active communication mode, wherein the peer communication link is deselected after being established while being maintained; determining that the peer communication link with the remote NFC device is to be reactivated; transmitting a wakeup request message to the remote NFC device to reactivate the peer communication link; and performing a radio frequency (RF) collision avoidance process on one or more wakeup responses received from the remote NFC device in response to transmission of the wakeup request message, wherein the performing the RF collision avoidance process further comprises; determining whether an active communication mode flag has been set; and transmitting a message to the remote NFC device without performing the RF collision avoidance process before the transmitting message based on a determination that the active communication mode flag has not been set. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A non-transitory computer-readable medium comprising code executable by a processor for:
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detecting a field generated by a remote near field communication (NFC) device within an operating volume of an NFC device; establishing a peer communication link with the remote NFC device using an active communication mode, wherein the peer communication link is deselected after being established while being maintained; determining that the peer communication link with the remote NFC device is to be reactivated; transmitting a wakeup request message to the remote NFC device to reactivate the peer communication link; and performing a radio frequency (RF) collision avoidance process on one or more wakeup responses received from the remote NFC device in response to transmission of the wakeup request message, wherein the performing the RF collision avoidance process further comprises; determining whether an active communication mode flag has been set; and transmitting a message to the remote NFC device without performing the RF collision avoidance process before the transmitting message based on a determination that the active communication mode flag has not been set. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An apparatus for communications, comprising:
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means for detecting a field generated remote near field communication (NFC) device within an operating volume of an NFC device; means for establishing a peer communication link with the remote NFC device using an active communication mode, wherein the peer communication link is deselected after being established while being maintained; means for determining that the peer communication link with the remote NFC device is to be reactivated; means for transmitting a wakeup request message to the remote NFC device to reactivate the peer communication link; and means for performing a radio frequency (RF) collision avoidance process on one or more wakeup responses received from the remote NFC device in response to transmission of the wakeup request message, wherein the means for performing the RF collision avoidance process further comprises; means for determining whether an active communication mode flag has been set and means for transmitting a message to the remote NFC device without performing the RF collision avoidance process before the transmitting message based on a determination that the active communication mode flag has not been set. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. An apparatus for NFC communications, comprising:
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a transceiver; a memory; a processor coupled to the memory; and an active communication mode module coupled to at least one of the memory or the processor and configured to; detect a field generated by a remote near field communication (NFC) device within an operating volume of an NFC device; establish a peer communication link with the remote NFC device using an active communication mode, wherein the peer communication link is deselected after being established while being maintained; wherein the active communication mode module is further configured to determine that the peer communication link with the remote NFC device is to be reactivated; wherein the transceiver is further configured to transmit a wakeup request message to the remote NFC device to reactivate the peer communication link; and wherein the active communication mode module is further configured to a radio frequency (RF) collision avoidance process on one or more wakeup responses received from the remote NFC device in response to transmission of the wakeup request message, wherein the performing the RF collision avoidance process further; determines whether an active communication mode flag has been set; and transmits a message to the remote NFC device without performing the RF collision avoidance process before the transmitting message based on a determination that the active communication mode flag has not been set. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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Specification