CN101415260A - Mobile communication terminal with GPS locating function - Google Patents
Mobile communication terminal with GPS locating function Download PDFInfo
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- CN101415260A CN101415260A CNA2008102035847A CN200810203584A CN101415260A CN 101415260 A CN101415260 A CN 101415260A CN A2008102035847 A CNA2008102035847 A CN A2008102035847A CN 200810203584 A CN200810203584 A CN 200810203584A CN 101415260 A CN101415260 A CN 101415260A
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- gps
- satellite
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Abstract
The invention discloses a mobile communication terminal with GPS positioning function, comprising a GPS satellite signal preprocessor and a baseband processor for mobile communication. The GPS satellite signal preprocessor is connected with a GPS radio frequency circuit. The GPS radio frequency circuit outputs a processed GPS satellite baseband signal to the GPS satellite signal preprocessor which is provided with a satellite signal correlator and a satellite signal calculator for obtaining the original data of the satellite which are transferred to the baseband processor for mobile communication by a satellite information channel. The baseband processor for mobile communication is used for obtaining information on the current position of the mobile communication terminal. The mobile communication terminal with GPS positioning function can be applied to various situations where the mobile communication and GPS positioning are needed, such as specific applications of positioning, navigation, monitoring, etc.
Description
Technical field
The present invention relates to mobile communication terminal, particularly a kind of mobile communication terminal with global positioning satellite (GlobalPositioning System is called for short GPS) function.
Background technology
Along with the raising of development and national economy and living standards of the people, and the opening of GPS technology, scale and the scope of domestic use GPS are more and more wide.In view of a large amount of popularize of mobile communication in the numerous people daily life, on mobile communication terminal, realize with low cost and realize that the GPS navigation system seems particularly important easily.
The mobile communication terminal that has the gps satellite positioning function at present generally adopts, and uses independently gps satellite locating module or chip, is connected by serial ports with baseband processor or application processor, utilizes powerful processing capacity, finishes the location navigation function.The baseband processor here refers to the processor of the management of wireless communications function in the mobile phone, and application processor is meant the processor of handling non-communication functions such as man-machine interface and multimedia function in the smart mobile phone.Use the mobile communication terminal of this independent GPS structure, price is higher, and volume is bigger.
Summary of the invention
For overcoming the deficiency of above-mentioned prior art, the technical problem to be solved in the present invention provides a kind of mobile communication terminal of the GPS of having positioning function, and integrated GPS function in baseband processor cooperates relevant hardware and software to finish positioning function.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of mobile communication terminal with GPS positioning function comprises gps satellite signal preprocessor and mobile communication baseband processor,
Described gps satellite signal preprocessor is connected with the GPS radio circuit, and the gps satellite baseband signal after this GPS radio circuit will be handled exports this gps satellite signal preprocessor to,
This gps satellite signal preprocessor has satellite-signal correlator and satellite-signal calculator, be used to obtain the satellite initial data, information channel sends the mobile communication baseband processor to via satellite, and described mobile communication baseband processor is used to obtain the current location information of this mobile communication terminal.
Described gps satellite signal preprocessor is connected with first memory, and this first memory is used for storage code and data.
Described mobile communication baseband processor is connected with second memory, and this second memory is used for storage code and data.
Described first memory and second memory are RAM memory, flash memory, ROM memory, eprom memory, eeprom memory, register, hard disk, removable disk, CD-ROM, or become one, are arranged in jointly ASIC with the processor that links to each other.
Described mobile communication baseband processor links to each other with the mobile communication radio frequency, and the two transmits the baseband signal of uplink and downlink mutually.
Described mobile communication baseband processor is given the location message handler with the locator data of terminal by the locating information channel transfer, and this locating information processor is used for the mode of described locating information by visual or pure digi-tal shown.
Described satellite information passage and locating information passage are UART mouth, USB, I2C, SPI connected mode.
Described locating information processor and mobile communication baseband processor realize in a phy chip, the message transmission channels that described locating information passage is an in house software.
Described gps satellite signal preprocessor and mobile communication baseband processor realize in same ASIC phy chip, the bus interface channel that described satellite information passage is asic chip inside.
Described satellite initial data comprises satellite-signal propagation time and almanac data.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention has the mobile communication terminal of GPS positioning function, adopted the scheme that the gps satellite signal processor is integrated into the baseband processor the inside, gps satellite signal processor and baseband processor cooperate together initial data decoding are obtained positional information, again it are sent to the locating information processor by the locating information passage and position information processing.Compare with the method for the independent gps satellite receiver module of traditional employing or with the method that initial data sends to application processor processes, this method has been utilized the vacant data-handling capacity of baseband processor, have simple in structurely, realize convenient and advantage with low cost.
The present invention has the mobile communication terminal of GPS positioning function, can be used in the various occasions that need mobile communication and GPS location simultaneously, and as location positioning, navigation, monitoring etc. are concrete uses.
Description of drawings
Fig. 1 is the system principle diagram of mobile communication terminal of the present invention.
Embodiment
Specific embodiments of the present invention are further described in detail below in conjunction with drawings and Examples, but should not limit protection scope of the present invention with this.
Embodiment one has global system for mobile communications (the Global Systemfor Mobile Communications of GPS positioning function, abbreviation GSM), GPRS (GeneralPacket Radio Service, be called for short GPRS) system or enhanced data rates for gsm evolution technology (Enhanced Data Rate for GSM Evolution, be called for short EDGE) system communication module, comprise satellite-signal preprocessor, radio circuit and baseband processor, the fit applications processor is a complete smart mobile phone scheme.
See also the system principle diagram of Fig. 1 mobile communication terminal of the present invention.The present invention has the mobile communication terminal of GPS positioning function, comprises gps satellite signal preprocessor 101 and mobile communication baseband processor 104.
Described gps satellite signal preprocessor 101 is connected with GPS radio circuit 100, gps satellite baseband signal after this GPS radio circuit 100 will be handled exports this gps satellite signal preprocessor 101 to, this gps satellite signal preprocessor 101 is connected with first memory 107, and this first memory 107 is used to processor storage data and code.These gps satellite signal preprocessor 101 implementation algorithms and data input and output control, it has satellite-signal correlator and satellite-signal calculator, this correlator be mainly used to obtain fast satellite-signal by each satellite transmission that searches to the needed time of ground receiver.Simultaneously, the ephemeris of each satellite that this gps satellite signal preprocessor 101 can also obtain searching comprises orbit parameter, time parameter, intensity etc., these data via satellite information channel 103 send mobile communication baseband processor 104 to.
In the embodiment of the invention, if as external chip, gps satellite signal preprocessor 101 is integrated in the function of GPS radio circuit 100, and the chip that can select for use has GNS4540.
When gps satellite signal preprocessor 101 and mobile communication baseband processor 104 are two independent chips, satellite information path 10 3 can be UART Universal Asynchronous Receiver Transmitter (UniversalAsynchronous Receiver/Transmitter, be called for short the UART mouth), can also comprise USB (Universal Serial Bus, abbreviation USB), inter-IC bus (INTER-IC, abbreviation I2C), serial peripheral interface modes such as (Serial peripheral interface are called for short SPI).The information of transmitting on the satellite information path 10 3 comprises satellite initial data such as the orbit parameter of each satellite and time parameter.
Mobile communication baseband processor 104 is used for initial data via satellite, separates the equation with many unknowns group, thereby obtains the current location information of this mobile communication terminal, comprises the current location and the time at terminal place.This equation group is:
[(X
1-X
0)
2+(Y
1-Y
0)
2+(Z
1-Z
0)
2]
1/2＝c?T
1-cΔt
0
[(X
2-X
0)
2+(Y
2-Y
0)
2+(Z
2-Z
0)
2]
1/2＝c?T
2-cΔt
0
[(X
3-X
0)
2+(Y
3-Y
0)
2+(Z
3-Z
0)
2]
1/2＝c?T
3-cΔt
0
[(X
4-X
0)
2+(Y
4-Y
0)
2+(Z
4-Z
0)
2]
1/2＝c?T
4-cΔt
0
Wherein, X
i, Y
i, Z
i, T
i(i=1,2,3,4) are respectively the propagation time of the satellite of the known spatial coordinate of four satellites and measurement to receiver, and c is a velocity of radio wave, X
0, Y
0, Z
0, Δ t
0Being the space coordinates and the clock correction of receiver, also is four unknown numbers will finding the solution.
Described mobile communication baseband processor 104 links to each other with mobile communication radio circuit 102, and the two transmits the baseband signal of uplink and downlink mutually.Described mobile communication baseband processor 104 is connected with second memory 108, and this second memory 108 is used for storage code and data.Mobile communication baseband processor 104 is used to finish protocol algorithm realization and data input and output control.Mobile communication baseband processor 104 is finished on the basis of basic communication functions, and also the satellite initial data that information channel 103 is via satellite transmitted is carried out computing, obtains current location information.Mobile communication baseband processor 104 dateouts are the locator data of terminal, can comprise information such as three-dimensional position, speed.These locator datas send locating information processor 106 to by locating information path 10 5.
Base-Band Processing among the present invention and the combination of the card of radio frequency are more.Such as: PNX5209 and SI4220.
Mobile communication baseband processor 104 sends the locator data of terminal to locating information processor 106 by locating information path 10 5, and this locating information processor 106 is used for the mode of described locating information by visual or pure digi-tal shown.
The processor of locating information described in the present embodiment 106 is positioned at application processor, and corresponding locating information path 10 5 is the UART that connect between mobile communication baseband processor 104 and the locating information processor 106, or connected modes such as SPI, I2C, USB.The information of transmitting on the locating information path 10 5 comprises three-dimensional position, information such as speed.
In sum, described satellite information path 10 3 is divided into two kinds according to the structural area of gps satellite signal preprocessor 101 and 104 two processors of mobile communication baseband processor.When these two processors all were independent chip, its data connected mode comprised SPI, I2C, UART, modes such as USB.In the time of within two processors all are positioned at a chip, its data connected mode also comprises chip internal bus connected mode except above-mentioned connected mode.
Described locating information path 10 5 is distinguished according to locating information processor position, and when locating information processor and baseband processor realized in a chip, the locating information passage was exactly that message mechanism by in house software is sent to the upper strata and handles.When the locating information processor was the application processor of an independent special use, the locating information passage can be USB, UART, and I2C, SPI etc. also can be the MUX multiplex modes that operates on USB or the UART.
Mobile communication terminal of the present invention is not limited to the GSM/GPRS/EDGE system, alternative system can be a Bluetooth communication system, cordless telephone system, the wireless network that meets IEEE802.11, the wireless network that meets IEEE802.16, code division multiple access (Code Division Multiple Access is called for short CDMA) system, the 3rd generation (being 3G), the 4th generation wireless communication systems such as (being 4G).
The present invention has realized a kind of mobile communication terminal that uses the mobile communication baseband processor to carry out the location computing of part gps satellite, utilize the GPS receiving chip (being the gps satellite signal preprocessor) and the section processes ability of mobile communication baseband processor to finish the location computing jointly, thereby know the current particular location of portable terminal.
The above is preferred embodiment of the present invention only, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should be technology category of the present invention.
Claims (10)
1, a kind of mobile communication terminal with GPS positioning function is characterized in that comprising gps satellite signal preprocessor (101) and mobile communication baseband processor (104),
Described gps satellite signal preprocessor (101) is connected with GPS radio circuit (100), and the gps satellite baseband signal after this GPS radio circuit (100) will be handled exports this gps satellite signal preprocessor (101) to,
This gps satellite signal preprocessor (101) has satellite-signal correlator and satellite-signal calculator, be used to obtain the satellite initial data, information channel (103) sends mobile communication baseband processor (104) to via satellite, and described mobile communication baseband processor (104) is used to obtain the current location information of this mobile communication terminal.
2, the mobile communication terminal with GPS positioning function according to claim 1 is characterized in that described gps satellite signal preprocessor (101) is connected with first memory (107), and this first memory (107) is used for storage code and data.
3, the mobile communication terminal with GPS positioning function according to claim 1 is characterized in that described mobile communication baseband processor (104) is connected with second memory (108), and this second memory (108) is used for storage code and data.
4, according to claim 2 and 3 described mobile communication terminals with GPS positioning function, it is characterized in that described first memory (107) and second memory (108) are RAM memory, flash memory, ROM memory, eprom memory, eeprom memory, register, hard disk, removable disk, CD-ROM, or become one, be arranged in jointly ASIC with the processor that links to each other.
5, the mobile communication terminal with GPS positioning function according to claim 1 is characterized in that described mobile communication baseband processor (104) links to each other with mobile communication radio frequency (102), and the two transmits the baseband signal of uplink and downlink mutually.
6, the mobile communication terminal with GPS positioning function according to claim 1, it is characterized in that described mobile communication baseband processor (104) sends the locator data of terminal to locating information processor (106) by locating information passage (105), this locating information processor (106) is used for the mode of described locating information by visual or pure digi-tal shown.
7, the mobile communication terminal with GPS positioning function according to claim 6 is characterized in that described satellite information passage (103) and locating information passage (105) are UART mouth, USB, I2C, SPI connected mode.
8, the mobile communication terminal with GPS positioning function according to claim 6, it is characterized in that described locating information processor (106) and mobile communication baseband processor (104) realize in a phy chip, described locating information passage (105) is the message transmission channels of in house software.
9, the mobile communication terminal with GPS positioning function according to claim 1, it is characterized in that described gps satellite signal preprocessor (101) and mobile communication baseband processor (104) realize in same ASIC phy chip, described satellite information passage (103) is the bus interface channel of asic chip inside.
10, the mobile communication terminal with GPS positioning function according to claim 1 is characterized in that described satellite initial data comprises satellite-signal propagation time and almanac data.
Priority Applications (1)
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|---|---|---|---|
| CNA2008102035847A CN101415260A (en) | 2008-11-28 | 2008-11-28 | Mobile communication terminal with GPS locating function |
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|---|---|---|---|
| CNA2008102035847A CN101415260A (en) | 2008-11-28 | 2008-11-28 | Mobile communication terminal with GPS locating function |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450828A (en) * | 2018-11-05 | 2019-03-08 | 北京理工大学 | Signal processing chip |
| CN112769443A (en) * | 2021-04-07 | 2021-05-07 | 上海麦腾物联网科技有限公司 | Internet of vehicles 5G communication system |
| CN113447967A (en) * | 2021-06-28 | 2021-09-28 | 西安邮电大学 | Application processor chip integrated with satellite navigation baseband IP and integration method |
| RU222331U1 (en) * | 2023-06-30 | 2023-12-21 | Акционерное общество "Научно-производственная фирма " Микран" | Satellite terrestrial user terminal for satellite communications |
-
2008
- 2008-11-28 CN CNA2008102035847A patent/CN101415260A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450828A (en) * | 2018-11-05 | 2019-03-08 | 北京理工大学 | Signal processing chip |
| CN109450828B (en) * | 2018-11-05 | 2020-05-29 | 北京理工大学 | Signal processing chip |
| CN112769443A (en) * | 2021-04-07 | 2021-05-07 | 上海麦腾物联网科技有限公司 | Internet of vehicles 5G communication system |
| CN113447967A (en) * | 2021-06-28 | 2021-09-28 | 西安邮电大学 | Application processor chip integrated with satellite navigation baseband IP and integration method |
| CN113447967B (en) * | 2021-06-28 | 2024-04-12 | 西安邮电大学 | Application processor chip integrating satellite navigation baseband IP and integration method |
| RU222331U1 (en) * | 2023-06-30 | 2023-12-21 | Акционерное общество "Научно-производственная фирма " Микран" | Satellite terrestrial user terminal for satellite communications |
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Open date: 20090422 |