Qualcomm Incorporated

Alan Gillespie

John Hillan

Dubai Chingalande

Jeremy R O'Donoghue

Anssi Haverinen

Ashish Banthia

Alberto Salcedo

Neeraj Bhatia

A method is described. The method includes enabling and configuring poll mode for a near field communication (NFC) data exchange format (NDEF) radio frequency (RF) interface configuration. The method also includes determining that a remote NFC endpoint includes an NFC forum tag once an NFC controller (NFCC) has successfully completed protocol activation. The method further includes performing activation operations based on an RF protocol of the NFC forum tag.

Systems and methods for an inductive communication interface

Aspects disclosed herein relate to activating a single wire protocol (SWP) interface with a circuit card. A single wire protocol (SWP) activation procedure is initiated with a circuit card. During the SWP activation procedure, an unexpected frame may be received, and a different SWP activation procedure may be initiated with the circuit card based at least in part on receiving the unexpected frame during the SWP activation procedure.

Techniques for activating single wire communications

Aspects disclosed herein relate to partitioning LLCP responsibilities between the NFCC and DH. In an example, with a NFC device a DH maybe configured to establish a LLCP link with a remote NFC endpoint through a NFCC, and partition LLCP related responsibilities between the DH and the NFCC when the NFCC is operable for LLCP split communications. Further, the NFCC may be operable to receive a PDU from a remote NFC endpoint, determine whether the received PDU is a SYMM PDU or a link deactivation PDU, and communicate the received PDU to a DH upon a determination that the received PDU is not a SYMM PDU or a link deactivation PDU.

Methods and apparatus for improving NFC LLCP partitioning

Aspects disclosed herein relate to improving mechanisms for managing logical connection establishment between NFCC and a DH. In one example, with a NFC device a NFCC may be configured to receive a core initialization command, from a DH, as part of an initialization and activation procedure. The NFCC may be configured to transmit a core initialization response to the DH without information associated with a static RF connection. Thereafter, the NFC device may detect one or more remote NFC endpoints. The NFCC 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 chosen for communications, and transmit the determined maximum payload size and the initial number of credits to the DH to establish a logical connection.

Methods and apparatus for improving management of NFC logical connections

The present application presents example data routing methods and apparatuses for reducing the amount of nonvolatile memory required to store secure element application locations associated with a near-field communications device. For example, the present disclosure presents a method of communication routing in a near-field communication device, which can include receiving, at a near-field communications controller (NFCC), a routing request message (e.g. from a requesting device), wherein the routing request message includes an original application identifier (AID) associated with an application. The example method may also include generating a compressed AID by applying a hash function to the original AID, reading an entry corresponding to the compressed AID in a routing data structure, wherein the entry contains one or more secure element pointers associated with one or more secure elements, and querying at least one of the secure elements to determine whether each contains the application.

Growing community of inventors

Farnborough, United Kingdom

Alan Gillespie