Abstract:
Transportation systems and infrastructure increasingly use wireless communication systems to provide access and payment methods for users. Because the wireless communication systems across transportation platforms differ, a need exists to indicate whether a device is interoperable with different systems. In an aspect, a method, an apparatus, a computer-readable medium are provided. The apparatus may be configured to detect on the apparatus a contactless application for accessing transportation infrastructure. The apparatus may be configured to determine whether the apparatus is compatible with device requirements of the contactless application for accessing transportation infrastructure and to provide a compatibility indication based on the determination.
Abstract:
Aspects disclosed herein relate to improving near field communication (NFC) device positioning for performing a NFC action based on one or more sensory cues. In one example, a NFC device may be equipped to detect that a device is attempting to perform a NFC action to communicate with a remote NFC device and may provide a first sensory cue to indicate a first location on a first surface of the device corresponding to an antenna location on a second surface of the device in response to the determination that the device is attempting to perform the NFC action. The NFC device may be further operable to determine a type of NFC action the device is attempting to perform and provide a second sensory cue indicating a second location on the first surface of the device based on one or more factors associated with the determined type of NFC action.
Abstract:
Aspects disclosed herein relate to improving technology detection and collision resolution among multiple NFC devices using a NFC type-A RF technology. In one example, a communications device is equipped to determine that a first device sensing response message includes one or more collisions, identify a first remote NFC device of the plurality of remote NFC devices by performing collision resolution on the first device sensing response message, transmit a sleep request message to the first remote NFC device that prohibits the first remote NFC device from responding to a first device sensing request message and the first device sensing request message, receive a second device sensing response message that includes collisions among the plurality of remote NFC devices, and identify a second remote NFC device of the plurality of remote NFC devices by performing collision resolution on the second device sensing response message.
Abstract:
Aspects disclosed herein relate to improving mechanisms for managing logical connection establishment between a NFCC (730) and a DH (760). In one example, with a NFC device (700) a NFCC (730) may be configured to receive a core initialization command, from a DH (760), as part of an initialization and activation procedure. The NFCC (730) may be configured to transmit a core initialization response to the DH (760) without information associated with a static RF connection. Thereafter, the NFC device (700) may detect one or more remote NFC endpoints (330). The NFCC (730) may further be operable to determine a maximum payload size and an initial number of credits for the static RF connection based, at least in part, on at least one of a RF interface or a RF protocol used by a remote NFC endpoint (330) chosen for communications, and transmit the determined maximum payload size and the initial number of credits to the DH (760) to establish a logical connection (764).
Abstract:
Exemplary embodiments are directed to wireless power. A chargeable device may comprise receive circuitry for coupling to a receive antenna. The receive circuitry may comprise at least one sensor to sense one or more parameters associated with the chargeable device. Further, the receive circuitry may comprise a tuning controller operably coupled to the at least one sensor to generate one or more tuning values in response to the one or more sensed parameters. Additionally, the receive circuitry may comprise a matching circuit operably coupled to the tuning controller for tuning the receive antenna according to the one or more tuning values.
Abstract:
Accessing memory on a first device from a second device is supported by reversible host/ client interfacing between the devices. The reversible interfacing permits the first and second devices to be configured respectively as host and client, or respectively as client and host.
Abstract:
A method for determining when to delay sending a response for distance bounding by a target device is described. The method includes receiving a challenge in a polling frame from a verifier device on a carrier signal for inductively coupled communication. The method also includes delaying a response adhering to rules of NFC type-A using a processing time multiplier. The method further includes sending the response to the verifier device in a listen frame.
Abstract:
Aspects disclosed herein relate to providing an improved collision resolution mechanism for handling multiple NFC-A devices where one or more of the NFC-A devices may not support SDD. In one example, a communications device is equipped to determine that a remote NFC device of two or more remote NFC devices supports SDD, resolve the remote NFC device of the two or more remote NFC devices using SDD, and determine whether a remaining remote NFC device of the two or more remote NFC devices supports SDD. In an aspect in which the remaining remote NFC device does not support SDD, the communications device may be equipped to set a flag indicating that unresolved remote NFC devices are present and/or send a read identifier (RID) message to the remaining remote NFC device.
Abstract:
Aspects disclosed herein relate to providing peer mode passive communications while accounting for a power level available to operate a NFC device. In the disclosed aspects, a near field communication (NFC) device may be equipped to detect a value for a power level available to operate the NFC device. The NFC device may be further equipped to determine a first duration to allocate for a listening mode and a second duration to allocate for a polling mode based at least in part on the determined available power level value and select a RF discovery loop based on the determined first duration and second duration. The NFC device may be further operable to perform peer mode discovery using the selected RF discovery loop.
Abstract:
Aspects disclosed herein relate to improving mechanisms for prompting a NFCC to update data exchange parameters for ISO-DEP communications between a DH and a remote NFC endpoint. In an example, with a NFC device a DH may be configured to receive an activation message from a NFCC that is using a Frame RF interface over NFC-B RF technology, determine that one or more data exchange parameters included in the activation message are different from one or more corresponding current relevant data exchange parameters that the NFCC is configured to implement, generate an RF parameter update command including the one or more data exchange parameters corresponding to the one or more current relevant data exchange parameters that are determined to be different, and send the generated RF parameter update command to the NFCC to prompt the NFCC to update the one or more corresponding current relevant data exchange parameters.