Patent ID: 9326127
Filing Date: 2016-04-26
CPC Classification: H04M,H04W

Claim Text:
1. A file read/write method used in a mobile terminal, comprising: determining whether a file to be read/written is a large file, wherein the file to be read/written is a file to be written into a calling card of the mobile terminal or a file to be read from the calling card; when determining that the file to be read/written is the large file, negotiating with the calling card a rate of reading/writing the large file, and replacing a standard rate with a high rate as a file read/write rate of the calling card, wherein the rate of reading/writing the large file is negotiated by the mobile terminal sending an application protocol data unit (APDU) data packet to the calling card, wherein the APDU data packet comprises a command type of a current data frame, a rate negotiation instruction, and a new transmission rate value; reading the file to be read/written from the calling card or writing the file to be read/written into the calling card according to the high rate; and automatically recovering the standard rate when the reading or the writing according to the high rate is completed.