Dual-card dual-standby mobile phone and communication method and communication system thereof

Abstract

The invention discloses a dual-card dual-standby mobile phone and a communication method and a communication system thereof. The dual-card dual-standby mobile phone comprises a single standby mobile phone body, a card support, a carrier band circuit board and a control chip, wherein the single standby mobile phone body is provided with a slot; the card support is fixedly inserted into the slot; the end part, which is close to the outer side of the single standby mobile phone body, of the card support is provided with a limiting slot; the carrier band circuit board is arranged on the card support; one end, which is close to the outer side of the single standby mobile phone body, of the carrier band circuit board is provided with a mounting part for mounting the control chip and a chip of a second SIM (Subscriber Identity Module) card; a plurality of salient points which can be electrically contacted with the first SIM card protrude from the other end of the carrier band circuit board; the control chip is arranged on the carrier band circuit band; the control chip can be electrically contacted with the first SIM card and the second SIM card respectively. According to the technical scheme, a dual-card dual-standby mode of a single-slot mobile phone can be realized on the premise of ensuring communication safety performance and power saving.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a dual-card dual-standby mobile phone, a communication method and a communication system thereof. Background technique [0002] At present, most of the mobile phones on the market are single-slot mobile phones, which cannot directly meet the requirements of users with two or more SIM cards and multiple numbers. You can only use additional mobile phones to maintain the use of two mobile phone numbers or use dual-card dual-standby mobile phones. . The technologies for realizing dual-card dual-standby of mobile phones in the prior art are listed below. [0003] 1. Thin-film SIM card technology, a thin-film SIM card is covered and pasted on the contact surface of the original SIM card, so that it can be used for switching between two numbers, but the thin-film SIM card cannot realize dual-card dual-standby, and can only switch SIM cards , the mobile phone can only be on stand...

AI Technical Summary

Problems solved by technology

[0003] 1. Thin-film SIM card technology, a thin-film SIM card is covered and pasted on the contact surface of the original SIM card, so that it can be used for switching between two numbers, but the thin-film SIM card cannot realize dual-card dual-standby, and can only switch SIM cards , the mobile phone can only be on standby with one number at any time

[0004] 2. One card with multiple numbers technology, store multiple sets of security keys in a standard SIM operating system, achieve the function of one SIM card with multiple numbers, switch and use in the mobile phone menu; although a single SIM is realized in the physical appearance card requirements, but affects the security of the operator's SIM card key

In order to implement this method of one card with two numbers, it is necessary to decrypt the security keys of the original SIM cards of the two operators by abnormal means. These highly sensitive security keys cannot be easily obtained, even if they are obtained, it will be very difficult for the user. It is a serious safety hazard; and this product can only be switched to use, and the mobile phone can only be on standby with one number at any time

[0005] 3. In the SIM bluetooth card adaptation technology, the bluetooth function of the mobile phone itself is connected to the SIM card bluetooth adapter, and the app program running on the mobile phone is used to contact the authentication server through the Internet access capability provided by the SIM originally inserted in the mobile phone, and control The SIM card inserted in the Bluetooth SIM card adapter runs the authentication command, sends the authentication result to the remote authentication server to log in to the network, and then forwards the voice call and SMS to the APP program to achieve dual card dual standby. This solution requires the user to Carrying a SIM card Bluetooth adapter with you requires additional power supply, charging and carrying burdens, and it occupies the Bluetooth channel of the mobile phone. The mobile phone can no longer use other Bluetooth devices such as Bluetooth headsets. Once the Bluetooth communication is disconnected, it will no longer be able to answer or dial and send and receive text messages.

Moreover, the SIM card inserted in the adapter can no longer realize the data Internet access function, only voice and text messages, which cannot meet the user's Internet access needs.

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