Method for reducing power consumption of radio-frequency SIM card in standby mode

Abstract

A method for reducing power consumption of a radio-frequency SIM card in a standby mode is characterized by comprising the following steps: when the radio-frequency SIM card is in the standby mode, using a main control integrated circuit (120) to periodically send wake-up clock pulses (Pwd) to enable a radio-frequency wireless receiving and sending chip (100) to be started normally; using the radio-frequency wireless receiving and sending chip (100) to detect the state of communication with a peripheral device and send different indication signals to self and the main control integrated circuit (120); and continuously switching on the radio-frequency wireless receiving and sending chip (100) and the main control integrated circuit (120) to enable the radio-frequency SIM card to be communicated with the peripheral device, or immediately switching off the radio-frequency wireless receiving and sending chip (100) and continuously switching off the main control integrated circuit (120) toenable the radio-frequency SIM card to work in a small current mode, and terminating the wake-up working state. The scheme of the method of the invention can enable the radio-frequency SIM card and aradio-frequency hand-held device to work in the standby (suspend) mode in most time, thus the total standby (suspend) duration can be prolonged relatively.

Description

technical field [0001] The present invention relates to a record carrier for use with a machine, in particular a record carrier with semiconductor circuit elements, and in particular to a method for reducing the power consumption of a radio frequency SIM card in standby mode. Background technique [0002] The radio frequency wireless transceiver chip used in the radio frequency SIM card in the prior art usually includes working states such as transceiver mode, standby (sleep) mode and shutdown mode, wherein the power consumption of the transceiver mode is far greater than that of the standby (sleep) mode ; The power consumption of the standby (sleep) mode is greater than that of the shutdown mode. [0003] In the standby (sleep) mode, the main control chip in the RF SIM card usually wakes up the RF wireless transceiver chip at regular intervals. During the entire wake-up process, the RF wireless transceiver chip in the RF SIM card or RF mobile terminal is normal. Start, and...

AI Technical Summary

Problems solved by technology

[0004] Generally speaking, the existing technology is to reduce the frequency of wake-up, within a certain period of time, to reduce the number of times the radio frequency wireless transceiver chip is woken up as much as possible, so as to reduce the average power consumption in standby mode, but the result of this process is that the radio frequency The time from waking up to normal working mode of the SIM card will be

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