CN200973101Y - CDMA network modem - Google Patents
CDMA network modem Download PDFInfo
- Publication number
- CN200973101Y CN200973101Y CNU2006200475340U CN200620047534U CN200973101Y CN 200973101 Y CN200973101 Y CN 200973101Y CN U2006200475340 U CNU2006200475340 U CN U2006200475340U CN 200620047534 U CN200620047534 U CN 200620047534U CN 200973101 Y CN200973101 Y CN 200973101Y
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- module
- interface module
- modem
- division multiple
- multiple access
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Abstract
The utility model relates to a Code Division Multiple Access (CDMA) network modem, which comprises a main module, a radio frequency interface module connected with the main module circuit connection, a SIM card interface module, an Ethernet interface module, an audio interface module and a serial interface module, as well as an antenna connected with the radio frequency interface module and a power supply module in the circuit connection with the main module. The utility model provides a Code Division Multiple Access (CDMA) network modem embedded with a complete TCP/IP protocol, which provides a standard asynchronous serial RS232 interface and an Ethernet interface and can be used to all equipments with the serial terminals to provide the terminal equipments without the TCP/IP protocol processing function with the wireless communication capacity.
Description
Technical field
The utility model relates to a kind of modem for code division multiple access network, serve industry user's data transmission service, be specially adapted to discontinuity, paroxysmal and frequent, a spot of transfer of data, be particularly suitable for M2M (general reference machine-machine, people-machine, the correspondence between people-people) application in field.
Background technology
Modem (modulator-demodulator) is the abbreviation of Modulator/DEModulator (modulator/demodulator).It is by modulation digital signal to be converted to analog signal at transmitting terminal, and is a kind of device of digital signal at receiving terminal again with analog signal conversion by demodulation.
Information in the computer is formed digital signal by " 0 " and " 1 ", and what pass in phone line can only be analog electrical signal.So, when two computers will carry out transfer of data by telephone wire (dialling up on the telephone), just need an equipment to be responsible for the conversion of digital-to-analogue such as us, this digital to analog converter is exactly Modem.Computer is converted to corresponding analog signal to digital signal by Modem earlier when sending data, this process is called " modulation ".Before the signal of ovennodulation is sent to another computer by telephone carrier, also to be responsible for analog signal is reduced to the digital signal of calculating function identification via recipient's Modem, this process is called " demodulation ".Digital-to-analogue conversion process by such one " modulation " and " demodulation " just, thus realized telecommunication between two computers.
Modal Modem is exactly the modulator-demodulator by the online of telephone wire dial mode.This network access is fewer for ISP and net user's initial investment, need not to transform circuit, installs also fairly simplely, and this mode is substantially all adopted in therefore early stage online.Popular along with broadband network, more high speed Modem (also being referred to as basic Modem) can more and more enter people's life.And the high speed modem of technical grade need be applied to occasion widely, and the device category of required connection is more, and the reliability requirement height is so have higher requirement to the development of modem.
CDMA1X is a kind of novel mobile data communication business, CDMA 1X is the communication technology that CHINAUNICOM releases in improving optimization cdma network process of construction, its wave point of further having upgraded makes it support high speed supplementary service channel, thereby can realize high-speed internet access service.CDMA1X is in transfer rate, and function aspects has outstanding technical advantage than GPRS, and the theoretical speed of CDMA1X is 153.6Kbps.
Along with the continuous development of network technology, the continuous upgrading of network plan, modulator-demodulator must constantly adapt to the variation of communications platform, just application prospect widely can be arranged, for the client brings better service.
In addition, multiple interfaces helps Modem and is applied to environment more widely, is convenient to for multiple user terminal provides service, and networking mode is flexible.Multiple technical grade Modem on the market only possesses USB (universal serial bus) and wave point, and this has just limited the diversity of Modem networking mode.
The utility model content
A kind of modem for code division multiple access network that the utility model provides, embedded complete ICP/IP protocol, the asynchronous serial RS232 interface and the Ethernet interface of standard are provided, applicable to the equipment of all band serial port terminals, for the terminal equipment that does not possess the ICP/IP protocol processing provides wireless communication ability.
In order to achieve the above object, the utility model provides a kind of modem for code division multiple access network, it comprises primary module, and distinguishes radio frequency interface module, SIM card interface module, ethernet interface module, audio interface module and the serial interface module that circuit connects with primary module;
Further, described modem for code division multiple access network also comprises the antenna that connects described radio frequency interface module is connected described primary module with circuit supply module;
Described primary module comprises the radio circuit that links to each other with radio frequency interface module, and this radio circuit is supported the wireless communication standard of CDMA2000 network, by with the purpose that reaches with wireless communication that is connected of radio-frequency module and antenna;
Described primary module also comprises baseband portion, and described baseband portion comprises electric energy piece, digital processing piece and the system connector that circuit connects;
Described electric energy piece is made up of several discrete adjusters, is the primary module power supply;
Described digital signal processing module is made up of digital processing chip and some memories;
Described system connector has several pins, and being connected of primary module and other parts of modulator-demodulator is provided, and has the conversion input function of analog to digital signal, phonetic entry and output function;
Described primary module supports the radio frequency of cdma network to receive and send (RX and TX) standard, the embedded Digital Signal Processing kernel of this primary module makes modulator-demodulator have speech recognition, voice record, compress speech, echo cancellation performance is supported 16 flash memory and SRAM (static storage), supports pure speech pattern and all radio configuration, support the high-speed data transfer of primary and backup channel, have general-purpose interface bus, have the microprocessor power-down mode, built-in house dog;
Described radio frequency interface module connects primary module and antenna, and by antenna, modulator-demodulator and outside cdma wireless network communicate;
Described SIM card interface module provides and being connected of outside SIM card, and after SIM card was inserted slot, equipment was discerned the information that SIM comprises automatically;
Described ethernet interface module can communicate with the terminal equipment that possesses the ICP/IP protocol function for equipment provides the Ethernet interface of 10/100BaseT;
Described audio interface module links to each other with external equipment by serial port connector, carries out communicating by letter of voice signal with the modulator-demodulator primary module simultaneously, and according to the audio frequency connection of inside, equipment is supported the input and output of single-ended and both-end balance simulation signal;
Described serial interface module realizes that modem and the external equipment that has serial line interface communicate;
In a single day described supply module is connected with the modem primary module, power with regard to the permanent modem of being.
A kind of modem for code division multiple access network that the utility model provides utilizes the CDMA1X mobile communications network as transmission medium, helps to realize the trade management modernization, the modem for code division multiple access network that targets such as data acquisition and control automatization, the utility model provide is powerful, and stability is high, can be widely used in finance, insurance, security, commercial, public security, traffic, the tax, meteorology, industry and fields such as oil.
A kind of modem for code division multiple access network that the utility model provides has the following function feature:
1, supports single-frequency 800MHZ, support the CDMA1X wireless network;
2, support voice, SMS;
3, dual-tone multifrequency function DTMF;
4, SMS is supported MT/MO (descending/up) pattern of point-to-point, CB (Cell Broadcast CB), PDU (protocol Data Unit) pattern;
5, work baud rate: 300-115200bits/s;
6, support online flank speed 153kbps;
7,2W radio-frequency power output;
8, exterior terminal is provided with and controls with the mode of operation of AT instruction to module by serial ports;
9, the business of Zhi Chiing comprises: calling transfer, and MPTY, call blocking, telephone directory, fixed number is called out, Call Waiting or maintenance, infrared ray SIM transfer of data, echo cancellation, SIM kit, USSD are chargeed in the calling line authentication;
10, support TCP/IP (transmission control protocol/Internet Protocol), UDP (User Datagram Protoco (UDP)) and PPP (peer-peer protocol) agreement;
11, support A5/1 and A5/5 cryptographic algorithm.
Description of drawings
Fig. 1 is the structural representation of a kind of modem for code division multiple access network of providing of the utility model.
Embodiment
Followingly specify a kind of better embodiment of the present utility model according to Fig. 1:
As shown in Figure 1, the utility model provides a kind of modem for code division multiple access network, it comprises primary module 1, and distinguishes radio frequency interface module 2, SIM card interface module 3, ethernet interface module 4, audio interface module 5 and the serial interface module 6 that circuit connects with primary module 1;
Further, described modem for code division multiple access network also comprises the antenna 7 that connects described radio frequency interface module 2 is connected described primary module 1 with circuit supply module 8;
Described primary module 1 comprises the radio circuit that links to each other with radio frequency interface module 2, and this radio circuit is supported the wireless communication standard of CDMA2000 network, by with the purpose that reaches radio-frequency module 2 and being connected of antenna 7 with wireless communication;
Described primary module 1 also comprises baseband portion, and described baseband portion comprises electric energy piece, digital processing piece and the system connector that circuit connects;
Described electric energy piece is made up of several discrete adjusters, is the primary module power supply;
Described digital signal processing module is made up of digital processing chip and some memories, and memory is that the SRAM (static memory) and the flash memory of standard formed;
Described system connector has several pins, and being connected of primary module and other parts of modulator-demodulator is provided, and has the conversion input function of analog to digital signal, phonetic entry and output function;
Described primary module 1 supports the radio frequency of cdma network to receive and send (RX and TX) standard, the embedded Digital Signal Processing kernel of this primary module makes modulator-demodulator have speech recognition, voice record, compress speech, echo cancellation performance is supported 16 flash memory and SRAM (static storage), supports pure speech pattern and all radio configuration, support the high-speed data transfer of primary and backup channel, have general-purpose interface bus, have the microprocessor power-down mode, built-in house dog;
Described radio frequency interface module 2 connects primary module 1 and antenna 7, and by antenna 7, modulator-demodulator and outside cdma wireless network communicate;
Described SIM card interface module 3 provides and being connected of outside SIM card, and after SIM card was inserted slot, equipment was discerned the information that SIM comprises automatically;
Described ethernet interface module 4 can communicate with the terminal equipment that possesses the ICP/IP protocol function for equipment provides the Ethernet interface of 10/100BaseT;
Described audio interface module 5 is by serial port connector link to each other with external equipment (as loud speaker), simultaneously carry out communicating by letter of voice signal with the modulator-demodulator primary module, audio frequency according to inside connects, and equipment is supported the input and output of single-ended and both-end balance simulation signal;
Described serial interface module 6 realizes that modem and the external equipment that has serial line interface communicate;
In a single day described supply module 8 is connected with the modem primary module, power with regard to the permanent modem of being.
A kind of modem for code division multiple access network that the utility model provides utilizes the CDMA1X mobile communications network as transmission medium, helps to realize the trade management modernization, the modem for code division multiple access network that targets such as data acquisition and control automatization, the utility model provide is powerful, and stability is high, can be widely used in finance, insurance, security, commercial, public security, traffic, the tax, meteorology, industry and fields such as oil.
A kind of modem for code division multiple access network that the utility model provides has the following function feature:
1, supports single-frequency 800MHZ, support the CDMA1X wireless network;
2, support voice, SMS;
3, dual-tone multifrequency function DTMF;
4, SMS is supported MT/MO (descending/up) pattern of point-to-point, CB (Cell Broadcast CB), PDU (protocol Data Unit) pattern;
5, work baud rate: 300-115200bits/s;
6, support online flank speed 153kbps;
7,2W radio-frequency power output;
8, exterior terminal is provided with and controls with the mode of operation of AT instruction to module by serial ports;
9, the business of Zhi Chiing comprises: calling transfer, and MPTY, call blocking, telephone directory, fixed number is called out, Call Waiting or maintenance, infrared ray SIM transfer of data, echo cancellation, SIM kit, USSD are chargeed in the calling line authentication;
10, support TCP/IP (transmission control protocol/Internet Protocol), UDP (User Datagram Protoco (UDP)) and PPP (peer-peer protocol) agreement;
11, support A5/1 and A5/5 cryptographic algorithm.
Claims (2)
1. modem for code division multiple access network, it is characterized in that, comprise primary module (1), and radio frequency interface module (2), SIM card interface module (3), ethernet interface module (4), audio interface module (5) and the serial interface module (6) of the connection of same primary module (1) difference circuit.
2. modem for code division multiple access network as claimed in claim 1, it is characterized in that described modem for code division multiple access network also comprises the antenna (7) that connects described radio frequency interface module (2) is connected described primary module (1) with circuit supply module (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200475340U CN200973101Y (en) | 2006-11-06 | 2006-11-06 | CDMA network modem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200475340U CN200973101Y (en) | 2006-11-06 | 2006-11-06 | CDMA network modem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200973101Y true CN200973101Y (en) | 2007-11-07 |
Family
ID=38884351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200475340U Expired - Fee Related CN200973101Y (en) | 2006-11-06 | 2006-11-06 | CDMA network modem |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200973101Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667694A (en) * | 2017-03-27 | 2018-10-16 | 中富通股份有限公司 | Multi-standard signal adapter |
-
2006
- 2006-11-06 CN CNU2006200475340U patent/CN200973101Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667694A (en) * | 2017-03-27 | 2018-10-16 | 中富通股份有限公司 | Multi-standard signal adapter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071107 Termination date: 20141106 |
|
| EXPY | Termination of patent right or utility model |