Near field communication method and mobile terminal

Abstract

The embodiment of the present invention discloses a near-field communication method and a mobile terminal. The AID routing table is stored in a storage space corresponding to the security mode of the AP, and the AID routing table includes a link between at least one AID and at least one destination address. One-to-one correspondence. After receiving the AID selection command sent by the NFC controller for initiating the NFC service, the AP obtains the target AID by parsing the AID selection command. Then, the AP queries the AID routing table to obtain the first destination address corresponding to the target AID. If the object corresponding to the first destination address is the SE, the AP establishes the first link between itself and the SE. And, all subsequent received service data belonging to the same NFC service as the AID selection command is sent to the SE until a new AID selection command is received. In this near field communication method, the AP directly sends the data of the NFC service to the SE, so the SE does not need to support the SWP protocol. Therefore, the complexity and cost of the NFC service architecture in the mobile terminal are reduced.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a near field communication method and a mobile terminal. Background technique [0002] Near Field Communication (NFC) is a short-range high-frequency radio technology evolved from RFID (Radio Frequency Identification, radio frequency identification). The working frequency of NFC is 13.56Hz, the effective range is within 20cm, and its transmission speed is 106Kbit / s, 212Kbit / s, or 424Kbit / s. NFC has 3 working modes: card reader mode, peer-to-peer mode, and card emulation mode. In the card reader mode, the NFC device generates a radio frequency field to read and write data from an external NFC tag using the same standard. In point-to-point mode, NFC can communicate with other NFC devices for point-to-point data transmission. In the card simulation mode, the card reader is an active device that generates a radio frequency field; the NFC device is a passive device that s...

AI Technical Summary

Problems solved by technology

[0008] However, the implementation of the SWP software protocol stack is relatively complicated, which makes the complexity and cost of SE support for the SWP protocol implementation process very high

Images