CN101471789A - Multi-mode data transmission device with USB interface - Google Patents
Multi-mode data transmission device with USB interface Download PDFInfo
- Publication number
- CN101471789A CN101471789A CNA2007101736775A CN200710173677A CN101471789A CN 101471789 A CN101471789 A CN 101471789A CN A2007101736775 A CNA2007101736775 A CN A2007101736775A CN 200710173677 A CN200710173677 A CN 200710173677A CN 101471789 A CN101471789 A CN 101471789A
- Authority
- CN
- China
- Prior art keywords
- chip
- processing chip
- gprs
- wlan
- usb interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to a multi-mode data transmission device with a USB interface, which comprises a PCB (a printed circuit board), wherein, the PCB is provided with a USB interface chip, a level switch chip, a WLAN baseband processing chip, a WLAN RF processing chip, a GPRS/enhanced GPRS baseband processing chip, a GPRS/enhanced GPRS RF processing chip, a time-division synchronous code division multiple access technique baseband processing chip, a time-division synchronous code division multiple access technique RF processing chip, and an antenna device are arranged on the PCB. The multi-mode data transmission device realizes the compatibility of the existing network technology, supports three data services on one device at the same time, and leads a client to complete the compatibility of the above-mentioned functions by utilizing a single wireless internet device.
Description
Technical field
The present invention relates to communication field, relate in particular to a kind of USB interface that has, and integrated WLAN (WLAN (wireless local area network)), GPRS/EGPRS (GPRS/Enhanced GPRS) and TD-SCDMA communication protocols such as (CDMA (Code Division Multiple Access) that the time-division is synchronous) realize being connected with notebook computer or PC by USB interface the data transmission device of use.
Background technology
At present, WLAN is used on a large scale as a kind of means of transfer of data access service that provide, and has laid a large amount of wlan networks at family, enterprise, hot zones, and it is just becoming a kind of a kind of main means of obtaining data transport service.At present, become the main flow of wlan network based on the mechanics of communication in the WLAN field of IEE802.11g agreement.TD-SCDMA is a kind of mobile communications network that polytype, high-quality multimedia service can be provided as one of present three big 3G standards, can realize static 2Mbps transmission speed, middle low speed 384Kbps, the data transport service of high speed 144Kbps speed.GPRS/EGPRS is that a kind of can the utilization has frequency band, adopts packet-switch technology, can realize the technology up to the efficient data transmission service of 473Kbps.
In present these several technology that realize transfer of data, the pluses and minuses of having nothing in common with each other: the IEE802.11g WLAN (wireless local area network) is because the restriction of network coverage, generally the occasion that can only be deployed with access point in family, enterprise, airport, hotel or senior consumption place etc. could be used, but under this occasion, the user can obtain the data access service than higher speed; For GPRS/EGPRS, though message transmission rate is not high, because the scope of disposing is wider at present, the whole city or the whole nation cover often, and this makes the user that the data communication service that GPRS/EGPRS inserts and utilizes it to provide can be provided in any place; As emerging TD-SCDMA 3G network,, will progressively grow up in future though the network coverage now is narrower, and compare WLAN, have better mobility and roaming service can be provided, and for GPRS/EGPRS, the advantage that transmission rate is arranged again, future development are very good.
Discuss from top contrast, we can say, present, these several technology have complementary, can allow the user according to different occasions, according to different needs, enjoy the service of wireless data transmission whenever and wherever possible.
In addition, present, common radio data-transmission equipment all is PCMICA (notebook proprietary extensions groove) card, can only use on notebook, and can not directly use on desktop PC.USB interface is now as a kind of general-purpose interface, develops into present USB2.0 from USB1.0 before, and transfer of data is more and more faster, use also more and more widely, no matter notebook computer, or Desktop PC, manufacturer all can reserve a lot of USB interface.Therefore, exploitation has a USB interface, but and the wireless internet accessing device of functions such as integrated WLAN, GPRS/EGPRS and TD-SCDMA will have the meaning of very practical and extensive use.Present EGPRS card independently on the market, independently the WLAN card is very universal, but the PCMICA interface is in the majority, is necessary so the access terminals of three kinds of standards of a kind of EGPRS/TD/WLAN of having concurrently and USB interface is provided.
Summary of the invention
The purpose of this invention is to provide a kind of USB interface that has, and the wireless internet accessing device of functions such as integrated WLAN, GPRS/EGPRS and TD-SCDMA, to realize the compatibility of existing network technology, can on an equipment, support simultaneously three kinds of data, services, make the client utilize the single wireless Internet device to finish compatibility above several functions.
The objective of the invention is to be achieved through the following technical solutions:
A kind of multi-mode data transmission device with USB interface, it comprises a printed circuit board (PCB), its characteristics are that this printed circuit board (PCB) is provided with:
An one USB interface chip and a level transferring chip;
The one WLAN (wireless local area network) baseband processing chip that is connected with this USB interface chip is connected with a WLAN RF process chip on it;
One GPRS/Enhanced GPRS the baseband processing chip that is connected with this USB interface chip is connected with one GPRS/Enhanced GPRS radio frequency processing chip on it;
The one synchronous CDMA (Code Division Multiple Access) baseband processing chip of time-division that is connected with this USB interface chip is connected with synchronous CDMA (Code Division Multiple Access) radio frequency processing chip of a time-division on it;
One is connected to the antenna assembly of this WLAN RF process chip, this GPRS/Enhanced GPRS radio frequency processing chip and should the time-division synchronous CDMA (Code Division Multiple Access) radio frequency processing chip.
Wherein, this USB interface chip, this level transferring chip, this WLAN (wireless local area network) baseband processing chip and this WLAN RF process chip are located at the front of this printed circuit board (PCB); The CDMA (Code Division Multiple Access) radio frequency processing chip that this GPRS/Enhanced GPRS radio frequency processing chip, this GPRS/Enhanced GPRS baseband processing chip, this time-division are synchronous and the back side of should synchronous CDMA (Code Division Multiple Access) baseband processing chip of time-division being located at this printed circuit board (PCB).
Wherein, this antenna assembly is the shared antenna of synchronous CDMA (Code Division Multiple Access) radio frequency processing chip of one GPRS/Enhanced GPRS radio frequency processing chip and time-division and the combination that a WLAN RF process chip is used antenna.
Positive progressive effect of the present invention is:
1, realizes the compatibility of existing network technology, can on an equipment, support three kinds of data, services simultaneously, make the client utilize the single wireless Internet device to finish compatibility above several functions;
2, adopt USB interface, transmission speed is fast, uses extensively.
Description of drawings
Fig. 1 is the hardware block diagram of preferred embodiment of the present invention.
Fig. 2 is the data path schematic diagram of preferred embodiment of the present invention.
Fig. 3 is the positive chip layout schematic diagram of the circuit board of preferred embodiment of the present invention.
Fig. 4 is the back of circuit board chip layout schematic diagram 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.
For convenience of explanation, each several part has adopted English abbreviation among the figure, and its concrete implication is described as follows:
WLAN: WLAN (wireless local area network);
GPRS/EGPRS: GPRS/Enhanced GPRS;
TD-SCDMA: the CDMA (Code Division Multiple Access) that the time-division is synchronous.
As shown in Figures 1 to 4, the present invention is a wireless internet accessing device with USB interface of functions such as WLAN, GPRS/EGPRS and TD-SCDMA, WLAN adopts the IEE802.11g agreement in the present embodiment, employing is used by the USB interface of inserting notebook computer or desktop PC, satisfies the USB2.0 standard with the interface specification of notebook computer or Desktop PC.Hardware device on the card can be divided into: wlan subsystem, GPRS/EGPRS subsystem and TD-SCDMA subsystem, wherein, wlan subsystem is supported the 802.11g standard, and the GPRS/EGPRS subsystem supports Class12 and TD-SCDMA subsystem to support the 384Kbps/2Mbps standard to be connected.Therefore it can regard a complex of wlan network interface card and GPRS/EGPRS and TD-SCDMA data terminal as, it can provide the WLAN wireless network to insert by wlan subsystem on the one hand, on the other hand, its data link dial-up access the Internet that can provide by GPRS/EGPRS and TD-SCDMA subsystem again.
Fig. 1 is a hardware block diagram of the present invention.Wlan subsystem is made of WLAN process chip 6 and WLAN antenna 7.The WLAN process chip 6 main contents of being responsible for 802.11 protocol-dependent contents and Base-Band Processing and processing radio frequency part.WLAN antenna 7 is responsible for the reception and the transmission of radio-frequency (RF) data signal.GPRS/EGPRS chip part 2 mainly is made up of GPRS/EGPRS baseband processing chip 21, radio frequency processing chip 22.GPRS/EGPRS baseband processing chip 21 is responsible for GSM, EGPRS protocol stack and the relevant ancillary equipment of control.Its radio frequency processing chip 22 is handled the content of radio frequency part.TD-SCDMA chip part 4 mainly is made up of TD-SCDMA baseband processing chip 41, radio frequency processing chip 42.Wherein, TD-SCDMA baseband processing chip 41 is responsible for realizing TD-SCDMA protocol stack and the relevant ancillary equipment of control.TD-SCDMA radio frequency processing chip 42 is handled the content of radio frequency part.Interface conversion circuit adopts USB interface chip 1, realizes the chip of USB to UART (UART Universal Asynchronous Receiver Transmitter) interface conversion, is responsible for bi-directional data conversion between USB and UART, and the communication logic of wlan subsystem and GPRS/EGPRS and TD-SCDMA subsystem is provided; Level transferring chip 8 is responsible for the function that the USB5V power source conversion becomes the required power level of system.The antenna system of wireless internet accessing device, GPRS/EGPRS antenna 3 and TD-SCDMA antenna 5 adopt shares PIFA antenna 9, and WLAN antenna 7 adopts SMD Patch antenna, has reduced the volume of wireless internet accessing device, and has reduced cost.
Fig. 2 is a data path schematic diagram of the present invention.Wireless internet accessing device according to the present invention is when work, wireless internet accessing device inserts all by USB and UART interface conversion chip, baseband processing chip, radio frequency processing chip and antenna system for the data of WLAN, GPRS/EGPRS and TD-SCDMA, transmits between user and network.
Because such multimode system chip and the peripheral components of integrated WLAN, GPRS/EGPRS and TD-SCDMA is relative more, therefore dwindle the size and the volume of wireless internet accessing device as far as possible, make its suitable portable characteristics, become the problem that the present invention need solve.GPRS/EGPRS of the present invention and TD-SCDMA partly adopt the PIFA antenna frame of shared support, WLAN partly adopts SMD Patch antenna, so just reduced the shared space of different antennae greatly, thus the volume and the size of having dwindled Internet device on the whole.Certainly, if be not very sensitive design or application scenario, can allow each subsystem use separately dedicated antenna fully at structure space.
The present invention is that to dwindle another measure that Internet device size and volume take be the layout type that adopts two-sided goods of furniture for display rather than for use, chip is placed the two sides of Internet device PCB (printed circuit board (PCB)) plate respectively, so just WLAN, GPRS/EGPRS and each subsystem height of TD-SCDMA integrally can be arranged on the pcb board, thereby reach the purpose of dwindling Internet device size and volume.
As shown in Figure 3 and Figure 4, in this embodiment, the back side of pcb board is provided with GPRS/EGPRS, TD-SCDMA baseband processing chip, GPRS/EGPRS, TD-SCDMA radio frequency processing chip, and peripheral components etc.The front of pcb board is provided with USB and UART interface conversion chip, power level conversion chip 8, and WLAN radio frequency processing chip 62, WLAN baseband processing chip 61 in addition, also is provided with antennal interface at the back side of pcb board, is used for being connected with the antenna system of Internet device.
Obviously,, multiple different circuit board designing method can be arranged, in concrete enforcement, should do corresponding selection, to obtain the effect of simplifying circuit, dwindling the Internet device volume according to employing element model according to the invention thought of two-sided goods of furniture for display rather than for use of the present invention.
Entire equipment of the present invention is a Multifunctional USB equipment physically, and the place that is different from common Multifunctional USB equipment is: it is by USB interface equipment to be carried out identification and management.Thereby its configuration, maintenance and operation are more simple.This wireless internet accessing device carries out identification and management by PC side drive software to equipment, and equipment is operated with the wlan device driving by GPRS/EGPRS that makes up on it and TD-SCDMA device drives.Wireless internet accessing device is supported as a Multifunctional USB peripheral equipment in Windows, promptly from the angle of operating system, can see two equipment, and one is the wlan network interface card, and another is EGPRS and TD-SCDMA modulator-demodulator.
More than introduced under Windows operating system, with the concrete hardware and software method to set up of wireless internet accessing device of the present invention as the wireless internet accessing device of a usb type, obviously, according to invention thought of the present invention, adopt other operating system software or support that the equipment beyond notebook computer and the Desktop PC also is feasible, and this transplanting does not need to do to relate to any change of invention thought 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 (3)
1, a kind of multi-mode data transmission device with USB interface, it comprises a printed circuit board (PCB), it is characterized in that, this printed circuit board (PCB) is provided with:
An one USB interface chip and a level transferring chip;
The one WLAN (wireless local area network) baseband processing chip that is connected with this USB interface chip is connected with a WLAN RF process chip on it;
One GPRS/Enhanced GPRS the baseband processing chip that is connected with this USB interface chip is connected with one GPRS/Enhanced GPRS radio frequency processing chip on it;
The one synchronous CDMA (Code Division Multiple Access) baseband processing chip of time-division that is connected with this USB interface chip is connected with synchronous CDMA (Code Division Multiple Access) radio frequency processing chip of a time-division on it;
One is connected to the antenna assembly of this WLAN RF process chip, this GPRS/Enhanced GPRS radio frequency processing chip and should the time-division synchronous CDMA (Code Division Multiple Access) radio frequency processing chip.
2, the multi-mode data transmission device with USB interface according to claim 1, it is characterized in that this USB interface chip, this level transferring chip, this WLAN (wireless local area network) baseband processing chip and this WLAN RF process chip are located at the front of this printed circuit board (PCB); The CDMA (Code Division Multiple Access) radio frequency processing chip that this GPRS/Enhanced GPRS radio frequency processing chip, this GPRS/Enhanced GPRS baseband processing chip, this time-division are synchronous and the back side of should synchronous CDMA (Code Division Multiple Access) baseband processing chip of time-division being located at this printed circuit board (PCB).
3, the multi-mode data transmission device with USB interface according to claim 2, it is characterized in that this antenna assembly is the shared antenna of synchronous CDMA (Code Division Multiple Access) radio frequency processing chip of one GPRS/Enhanced GPRS radio frequency processing chip and time-division and the combination that a WLAN RF process chip is used antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101736775A CN101471789A (en) | 2007-12-28 | 2007-12-28 | Multi-mode data transmission device with USB interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101736775A CN101471789A (en) | 2007-12-28 | 2007-12-28 | Multi-mode data transmission device with USB interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101471789A true CN101471789A (en) | 2009-07-01 |
Family
ID=40828932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101736775A Pending CN101471789A (en) | 2007-12-28 | 2007-12-28 | Multi-mode data transmission device with USB interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101471789A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101720135B (en) * | 2009-11-30 | 2012-02-29 | 成都林海电子有限责任公司 | Satellite-ground integrated mobile communication system |
| CN102548047A (en) * | 2010-12-30 | 2012-07-04 | 西安龙飞软件有限公司 | Multipurpose 3G (3rd Generation) card for supporting WLAN (Wireless Local Area Network) access |
| CN104735818A (en) * | 2013-12-23 | 2015-06-24 | 京信通信系统（中国）有限公司 | Access point equipment of wireless local area network and signal processing method thereof |
-
2007
- 2007-12-28 CN CNA2007101736775A patent/CN101471789A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101720135B (en) * | 2009-11-30 | 2012-02-29 | 成都林海电子有限责任公司 | Satellite-ground integrated mobile communication system |
| CN102548047A (en) * | 2010-12-30 | 2012-07-04 | 西安龙飞软件有限公司 | Multipurpose 3G (3rd Generation) card for supporting WLAN (Wireless Local Area Network) access |
| CN104735818A (en) * | 2013-12-23 | 2015-06-24 | 京信通信系统（中国）有限公司 | Access point equipment of wireless local area network and signal processing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6334838B2 (en) | Encoded information reading terminal having a multiband antenna | |
| US8954096B2 (en) | Method and apparatus for detecting insertion of SIM card in a portable terminal | |
| US7319715B1 (en) | Systems and methods for a multi-mode wireless modem | |
| CN101141354B (en) | Terminal of selecting access to mobile network or wireless LAN | |
| US10917820B2 (en) | Wireless communication device and control method therefor | |
| CN201278593Y (en) | Multi-mode wireless data card | |
| CN101697640B (en) | Software radio-based wireless communication customer premises equipment | |
| CN105684499A (en) | Coordination techniques for discontinuous reception (drx) operations in dual-connectivity architectures | |
| RU2007144328A (en) | MULTI-MODE TERRESTRIAL MOBILE RADIO STATION | |
| CN101945490A (en) | Software radio-based wireless communication system terminal equipment | |
| WO2011079765A1 (en) | Baseband signal processing device, method and multi-mode base station | |
| EP2099183A1 (en) | A wireless communication apparatus and the configuration method thereof | |
| CN102209402B (en) | The interface of a kind of multimode terminal radio frequency chip and baseband chip | |
| CN111818619B (en) | Method and wireless communication device for data packet distribution over multiple subscriber identities | |
| CN111934801B (en) | System and method for multi-network access by mobile computing devices | |
| CN103944601A (en) | PCIE (peripheral component interface express) interface based software radio frequency transmitter-receiver and method | |
| CN101471789A (en) | Multi-mode data transmission device with USB interface | |
| CN101772216A (en) | Differential mode dual-standby mobile terminal and signal transceiving method thereof | |
| JP3870888B2 (en) | Wireless communication card | |
| CN1307821C (en) | Double-mode radio data card uith PHS and WLAN function | |
| US7162270B2 (en) | Dual communication mode wireless network transmission device | |
| KR101531068B1 (en) | METHOD OF ACCESSING Universal IC Card ON Dual Band Dual Mode MODEM | |
| CN201663637U (en) | Interface of multi-mode terminal radio frequency chip and baseband chip | |
| CN103258221A (en) | Ultrahigh-frequency reader-writer | |
| US20110217939A1 (en) | Information processing apparatus and antenna frequency control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090701 |