CN101022630A

CN101022630A - Double-module cellphone communication control method

Info

Publication number: CN101022630A
Application number: CNA2007100875605A
Authority: CN
Inventors: 舒姗姗
Original assignee: Shanghai Wingtech Electronic Technology Co Ltd
Current assignee: Shanghai Wingtech Electronic Technology Co Ltd
Priority date: 2007-04-02
Filing date: 2007-04-02
Publication date: 2007-08-22

Abstract

A method for controlling communication of double-mode mobile phone includes setting two module to be on slow clock state for decreasing power consumption of module when double-mode mobile phone is on standby process, only entering into normal operation mode when module is to be operated by user, enabling module to receive-transmit data through serial interface only under normal operation mode and enabling to use two modules to receive-transmit data on turns according to specified condition.

Description

A kind of control method of dual-mode handset communication

Technical field

The present invention relates to a kind of dual-mode handset inter-module communication interface control method, relate in particular to the module interface control timing in dual-mode handset field.

Background technology

Mobile phone has become the requisite communication tool of people now, the present domestic GSM that has, CDMA, three kinds of mobile telephone networks such as PHS, these three kinds of standards respectively have characteristics, can satisfy the needs of the different occasions of people, so just having produced needs a mobile phone to support the demand of two or more standard networks, some GSM-CDMA dual-mode handsets and GSM-PHS dual-mode handset have also appearred on the market, current dual-mode handset normally adopts and two kinds of standard mobile modules are worked in a mode in the system simultaneously realizes, this structure realizes convenient, highly versatile.Like this, the communication modes between two modules becomes an important problem, at first needs to guarantee the reliable transmission of interface data, and secondly, interface should not be too complicated, the difficulty that the complex interface design can increase software cost and integrate debugging.This paper has proposed the communication interface design between a kind of two modules, and this design is succinctly reliable, the power consumption in the time of can also controlling the mobile phone operation simultaneously, and can guarantee that two modules develop separately after debugging finishes, carry out the integration debugging of system comparatively easily.

Summary of the invention

1), the technical problem that will solve

Interface design in the dual-mode handset scheme between the module.

2) technical scheme

For guaranteeing two module reliable communications, and the requirement of economizing on electricity in the mobile phone running, and guarantee the succinct of interface between the module, technical solution of the present invention is as follows:

Interface connects as Fig. 1, adopts the full duplex serial ports to carry out transfer of data; Two pairs of I/O mouths and a pair of UART serial ports are done transmitting-receiving and are waken control up.

Owing to have two modules to work simultaneously in a mobile phone, so dual-mode handset power consumption unavoidably can be bigger, for reducing the dual-mode handset power consumption as far as possible, dual-mode handset in the standby process in most cases two modules all be in slow clock status, can reduce module power consumption like this, have only the user to operate to module, or module just can withdraw from slow clock status when having incident to be processed, enter normal mode of operation, also only could be normal by the serial ports transceive data at the normal mode of operation lower module.When a module needs another module transceive data, need wake the other side up by serial ports; Another module withdraws from then will notify the other side can begin to send data by an I/O mouth after slow clock module is ready to receive data.

Description of drawings

Fig. 1 is the system construction drawing of this programme;

Fig. 2 be among Fig. 1 modules A to the sequential chart of module B transmission primaries data;

Fig. 3 be among Fig. 1 module B to the sequential chart of modules A transmission primaries data.

Embodiment

As shown in Figure 1, I/OM1 is a delivery outlet, and modules A is used for notification module B, and current modules A has been ready to receive data;

I/OM2 is the input port, and module B is used for notification module A, when front module B has been ready to receive data, after modules A is notified, begins to send data;

UARTM is the full duplex serial ports that modules A is communicated by letter with module B, is used to receive and dispatch interface command and wake module.

RXM is the input port, when module B needs wake module A, can send a string spcial character earlier, when modules A is received data from RXM, withdraws from slow clock module, prepares to receive data, and at I/OM1 output high level; Module B begins the transmission interface order data after detecting the I/OS1 high level, and this moment, modules A received order data from RXM.

TXM is a delivery outlet, and when modules A had data will send to module B, modules A sent a string spcial character earlier, is used for wake module B; After modules A detects I/OM2 and is high level, begin from TXM transmission interface order data.

I/OS1 is the input port, and modules A is used for notification module B, and current modules A has been ready to receive data;

I/OS2 is a delivery outlet, and module B is used for notification module A, when front module B has been ready to receive data;

UARTS is the full duplex serial ports that modules A is communicated by letter with module B, is used to receive and dispatch interface command and wake module.

RXS is the input port, when modules A needs wake module B, can send a string spcial character earlier, when module B receives data from RXS, withdraws from slow clock module, prepares to receive data, and at I/OS2 output high level; Modules A begins the transmission interface order data after detecting the I/OS2 high level, and this moment, module B received order data from RXS.

TXS is a delivery outlet, and when module B had data to send to modules A, module B sent a string spcial character earlier, is used for wake module A; After module B detects I/OS1 and is high level, begin from TXS transmission interface order data.

As shown in Figure 2, the data transmission procedure of modules A to module B transmission data described among the figure.

M-Ready: connecting line level between I/OM1 and the I/OS1 among Fig. 1.

S-Ready: connecting line level between I/OM2 and the I/OS2 among Fig. 1.

Data-interface: the connecting line among Fig. 1 between UARTM and the UARTS (data wire) level.

As shown in Figure 3, the data transmission procedure of module B to modules A transmission data described among the figure.

M-Ready: connecting line level between I/OM1 and the I/OS1 among Fig. 1.

S-Ready: connecting line level between I/OM2 and the I/OS2 among Fig. 1.

Data-interface: the connecting line among Fig. 1 between UARTM and the UARTS (data wire) level.Modules A is given module B transmission data:

Step 1: system's start that powers on, after opening initialization was finished, two modules all entered slow clock module.This moment, data-interface was a high level; M-Ready, S-Ready are low level.

Step 2: modules A detects I/OM2 when being low level, exports a string character from TXM, has data to transmit with notification module B.

When step 3: module B detects serial ports transfer of data is arranged, withdraw from slow clock module, prepare to receive data, begin to detect the command header of interface command, and from I/OS2 output high level, notification module A can begin to send data.

Step 4: modules A detect I/OM2 become high level after, begin to send data, after module B detects command header, begin to receive and the processing command data.

Step 5: after module B is received current data packet,, and allow to enter slow clock module from the I/OS2 output low level.

Step 6: connect step 4, after modules A sends current data packet, if continue to send next packet, need to detect the state of I/OM2, when I/OM2 is low level, just export a string character from TXM, notification module B has data to transmit.After this forwarding step 3 to continues to carry out.

Step 7: after current data packet sent, if there is not other action need to carry out, modules A and module B entered slow clock status again.

Module B transmits data to modules A:

Step 2: module B detects I/OS1 when being low level, exports a string character from TXS, has data to transmit with notification module B.。

Step 3: after modules A detects serial ports data inputs is arranged, withdraw from slow clock module, prepare to receive data, beginning sense command head, and from I/OM1 output high level, notification module B can begin to send data.

After step 4: module B detects I/OS1 and becomes high level, begin to send data, after modules A detects command header, begin to receive and the processing command data.

Step 5: after modules A is received current data packet,, and allow to enter slow clock module from the I/OM1 output low level.

Step 6: connect step 4, after module B sends current data packet, if continue to send next packet, need to detect the state of I/OS1, when I/OS1 is low level, just export a string data from TXS, notification module A has data to transmit.After this forwarding step 3 to continues to carry out.

English abbreviation	The Chinese full name	English full name
English abbreviation	The Chinese full name	English full name	PHS	Personal handhold telephone system	Personal Handset System
GSM	Global system for mobile communications	Global System for Mobile communications	PHS	Personal handhold telephone system	Personal Handset System
GSM	Global system for mobile communications	Global System for Mobile communications	CDMA	Code division multiple access	Code Division Multiple Access
DTMF	Dual-tone multifrequency	Dual-tone multi-frequency	CDMA	Code division multiple access	Code Division Multiple Access

Claims

1. the control method of a dual-mode handset intermodule communication interface, wherein said dual-mode handset comprises that two modules move different communication standards respectively, described two modules are moved in relatively independent mode, and between be connected with two data signal lines by two control signal wires, communicate and data interaction, this method comprises:

1) system's start that powers on, after opening initialization was finished, two modules all entered slow clock module, and this moment, data-interface was a high level; Control signal M-Ready, S-Ready are low level;

2) modules A is when to detect control signal delivery outlet I/OM2 be low level, and TXM exports a string character from full duplex serial ports delivery outlet, has data to transmit with notification module B;

When 3) module B detects serial ports transfer of data is arranged, withdraw from slow clock module, prepare to receive data, begin to detect the command header of interface command, and from control signal delivery outlet I/OS2 output high level, notification module A can begin to send data;

4) after modules A detects control signal input port I/OM2 and becomes high level, begin to send data, after module B detects command header, begin to receive and the processing command data;

5) after module B is received current data packet,, and allow to enter slow clock module from control signal delivery outlet I/OS2 output low level;

6) connect step 4), after modules A sends current data packet, if continue to send next packet, need to detect the state of control signal input port I/OM2, when I/OM2 is low level, just export a string character from TXM, notification module B has data to transmit.After this forwarding step 3) to continues to carry out;

7) after current data packet sent, if there is not other action need to carry out, modules A and module B entered slow clock status again.

2. the method for claim 1, wherein the interface of two modules connects and adopts the full duplex serial ports to carry out transfer of data; Two pairs of I/O mouths and a pair of UART serial ports are done transmitting-receiving and are waken control up.