CN102158990A

CN102158990A - 3g communication module

Info

Publication number: CN102158990A
Application number: CN2010101100140A
Authority: CN
Inventors: 沈峰
Original assignee: Shanghai Simcom Wireless Solutions Co Ltd
Current assignee: Shanghai Simcom Wireless Solutions Co Ltd
Priority date: 2010-02-11
Filing date: 2010-02-11
Publication date: 2011-08-17

Abstract

The invention discloses a 3G communication module which comprises a TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) function module and a big dipper function communication module used for locating big dipper satellites. The TD-SCDMA function module is in inserting fitting with the big dipper function communication module. The 3G communication module can be used in various fields, such as security and the like and can be used as a handheld terminal having video communication and positioning functions. Secondary development can be conducted on the basis of the 3G communication module, the engineer development time, the labour cost, the instrumental equipment cost and other costs of broad enterprises in the fields of wireless communication terminals, communication equipment and the like can be reduced, the development period of engineers can be effectively shortened so as to promote products to come into the market earlier, and the efficiency can be improved. A user can develop a product which simultaneously has big dipper navigation and positioning functions, a weather forecasting function, a solar calender/lunar calender accurate time service function, a voice and video communication function and a rapid wireless Internet access function.

Description

The 3G communication module

Technical field

The present invention relates to a kind of wireless communication module, particularly relate to a kind of wireless communication module that has TD-SCDMA and Big Dipper time service positioning function at domestic communication field the time.

Background technology

Along with the continuous maturation in domestic 3G market with popularize, the particularly extensive use of the own standard TD-SCDMA of China, and domestic big-dipper satellite navigation system is perfect gradually, make Chinese be full of expectation to the 3G network TD-SCDMA that has independent intellectual property right and the integrated application of big-dipper satellite navigation system, can be fully from independent research, all multifactor considerations such as cost savings and safety guarantee, the communication module of a set TD-SCDMA and big-dipper satellite navigation system goes for national communications and transportation, army, electric power, communication, geological prospecting, resource investigation, forest fire protection, medical first aid, accurate measurement, use in fields such as target monitoring.

Have a lot of TD-SCDMA mobile phones to have the mobile phone of GPS function on the market now, but its use has limitation, also do not have to contain simultaneously the 3G wireless communication module of TD-SCDMA and big-dipper satellite navigation system at present in the prior art.

Summary of the invention

The technical problem to be solved in the present invention is to overcome the 3G communication module of the prior art defectives such as having TD-SCDMA and big-dipper satellite positioning function simultaneously that is unrealized, and a kind of 3G communication module with Big Dipper function is provided.

The present invention solves above-mentioned technical problem by following technical proposals:

A kind of 3G communication module, its characteristics are that it comprises that a TD-SCDMA functional module and is used for the Big Dipper function communication module of big-dipper satellite location, and this TD-SCDMA functional module cooperates for pegging graft with this Big Dipper function communication module.

Wherein, this TD-SCDMA functional module and this Big Dipper function communication module slot interface by separately plugs.

Wherein, this TD-SCDMA functional module is this Big Dipper function communication module power supply by slot interface, and this Big Dipper function communication module outputs to this TD-SCDMA functional module with the dipper system data message that receives by slot interface.

Positive progressive effect of the present invention is: the present invention can be applicable to a lot of fields, can make fields such as a handheld terminal that has video calling and a positioning function and security protection.Can also on basis of the present invention, carry out secondary development, can save the costs such as engineers development time, manpower and instrument and equipment of field enterprises such as vast wireless communication terminal, communication equipment, can effectively shorten the construction cycle of engineers, so that the quickening time to market (TTM) is raised the efficiency.The user can develop have simultaneously Big Dipper navigation locating function, weather forecast, solar calendar the lunar calendar precisely really time service function, voice and video call function, fast wireless function of surfing the Net.

Description of drawings

Fig. 1 is the TD-SCDMA 3G part front schematic view of preferred embodiment of the present invention;

Fig. 2 is the TD-SCDMA 3G part reverse side schematic diagram of preferred embodiment of the present invention;

Fig. 3 is the Big Dipper part front schematic view of preferred embodiment of the present invention;

Fig. 4 is the Big Dipper part reverse side schematic diagram of preferred embodiment of the present invention;

Fig. 5 is the complete front schematic view of the Big Dipper and TD-SCDMA assembling back of preferred embodiment of the present invention;

Fig. 6 is the complete side schematic view of the Big Dipper and TD-SCDMA assembling back of preferred embodiment of the present invention.

Embodiment

Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.

Shown in Fig. 1-6,3G communication module of the present invention comprises that a TD-SCDMA functional module 16 and is used for the Big Dipper function communication module 15 of big-dipper satellite location, and both cooperate for pegging graft.In the present embodiment, this TD-SCDMA functional module 16 and this Big Dipper function communication module 15 plug by slot interface 6 and 12 separately.Wherein this TD-SCDMA functional module 16 is the commercially available prod with this Big Dipper function communication module 15, is the state of the art.

For further understanding the present invention, specifically be described below.At first, the 3G communication module in the present embodiment is a kind of wireless communication module of the HSDPA/GGE of support bimodulus.Module radio frequency under the TD-SCDMA pattern is supported the 2010-2025MHz frequency range, supports four frequency ranges of 850/900/1800/1900MHz under the GSM pattern.The radio-frequency technique index of TD-SCDMA pattern and GSM pattern is all followed the protocol specification of 3GPP 2003/3R4, and HSDPA radio-frequency technique index is followed the protocol specification of 3GPP 2005/12 R5.

Next is the communication module in the big-dipper satellite location Service of Timing of assembling operating frequency: 2491.75MHz on the basis of original 3G wireless communication module.3G communication module in the present embodiment can the outputting standard time signal comprises the Gregorian calendar (year, month, day, week, time, minute, second), information such as the lunar calendar (month, day); When the module Big Dipper is located, can provide clock accurately to system;

Module Big Dipper performance in the present embodiment satisfies following the requirement:

Table 1

Sequence	Module Big Dipper receptivity index	Module Big Dipper receptivity parameter
			1	Receiver channel	6
2	Cold start-up head catches the time	≤2s
			3	The recapturing unlocked time	≤1s
4	Automatic positioning time	3min
			5	The automatic time service time	2min
6	The highest receiving sensitivity	-162.6dBW(G/T＝23dB/K)
			7	The locator data turnover rate	1Hz, 8Hz, 16Hz are optional
8	Positioning accuracy	Less than 100m/95% (input vertical error 10m)
			9	Time service 1PPS precision	Less than 100ns
10	The 1PPS characteristic	1Hz, Transistor-Transistor Logic level, pulse duration 31.25ms

11	Dynamic property	3600km/h
			12	Interface protocol	" Big Dipper customer equipment data interface protocol " V4.0 version
13	Interface features	The RS-232 level, baud rate is adjustable

When module of the present invention is specifically made, at first consider the special application field and the scope of module, need make the contour structures and the size of reasonable module.3G communication module in the present embodiment is a kind of assemblnig radio communication module, promptly is connected with the deck interface between TD-SCDMA module (as Fig. 2) and the Big Dipper module (as Fig. 3), makes TD-SCDMA 3G module have the dipper system function.Whole parts such as the base band of TD module employing HSDPA/GGE bimodulus, radio frequency all are placed in the front of module PCB4, highly are integrated in 1 scope of Base-Band Processing zone, can also add radome and keep shielding, as Fig. 1.In addition, TD-SCDMA bimodulus module radio frequency processing zone 2 also adds radome and keeps shielding; TD-SCDMA bimodulus module radio-frequency communication place radio frequency interface 3; Module-external interface 5 comprises power supply, GPIO, analogue audio frequency input interface, analogue audio frequency output interface, usim card interface, UART interface etc. are provided.Other several places among the figure are illustrated: TD-SCDMA radiofrequency signal point 7, earth terminal 8, the auxiliary fixedly leg 9 of module makes the module effective grounding.

Big Dipper navigation positioning system chip is integrated in the positive zone of PCB of the independent module of another one, adds radome, as Fig. 3.The module for power supply of Big Dipper part is powered by primary module (as card 6 places), module assembling back dipper system data message can be exported by the external interface in the module map 15, after the user can connect Big Dipper satellite signal reception antenna energising work outside, this module can be received the star location, output position information, time, the lunar calendar, calendar etc., also can utilize satellite to communicate with one another in case of necessity, this also is design adds Big Dipper function on 3G TD-SCDMA module a main cause, relatively is fit to our state inner core unit and uses.The user can directly be buckled in module on the mainboard and weld fixing feet, so that finish the functional module of design 3G TD-SCDMA part and dipper system part fast.

When Big Dipper functional module do not need to be felt by certain customers, Big Dipper functional module can be disassembled and clog interface on the TD-SCDMA 3G module with the interface plug, prevent dust enters of long duration, phenomenon such as short circuit or ESD.The size aspect is on the size basis of the wireless communication module of original TD-SCDMA+ Big Dipper bimodulus, and length is done suitably and dwindled, and module thickness has a little to be increased.

In addition, the miscellaneous part among the figure is illustrated, the buckle structure 10 that is used for fixing with the TD-SCDMA functional module on the Big Dipper functional module, it can prevent becoming flexible, shake or dropping of module.This buckle structure is those skilled in the art's conventional techniques means, does not repeat them here.This module also comprises Big Dipper radiofrequency signal interface 11, the interface 12 on the Big Dipper functional module and between the TD-SCDMA module, Big Dipper radiofrequency signal point 13, and earth terminal 14.

Above introduce, it only is preferable implementation of the present invention, can not limit practical range of the present invention with this, for example change TD performance configuration, Big Dipper performance configuration, size or other structure etc., and the improvement known of those skilled in that art, all should belong to the covering scope of patent of the present invention.

Though more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, under the prerequisite that does not deviate from principle of the present invention and essence, can make numerous variations or modification to these execution modes.Therefore, protection scope of the present invention is limited by appended claims.

Claims

1. a 3G communication module is characterized in that, it comprises that a TD-SCDMA functional module and is used for the Big Dipper function communication module of big-dipper satellite location, and this TD-SCDMA functional module cooperates for pegging graft with this Big Dipper function communication module.

2. 3G communication module as claimed in claim 1 is characterized in that, this TD-SCDMA functional module and this Big Dipper function communication module plug by slot interface separately.

3. 3G communication module as claimed in claim 2, it is characterized in that, this TD-SCDMA functional module is this Big Dipper function communication module power supply by slot interface, and this Big Dipper function communication module outputs to this TD-SCDMA functional module with the dipper system data message that receives by slot interface.