CN102788987A - A-GNSS (Assisted Global Navigation Satellite System) assisted positioning system - Google Patents
A-GNSS (Assisted Global Navigation Satellite System) assisted positioning system Download PDFInfo
- Publication number
- CN102788987A CN102788987A CN2012102872922A CN201210287292A CN102788987A CN 102788987 A CN102788987 A CN 102788987A CN 2012102872922 A CN2012102872922 A CN 2012102872922A CN 201210287292 A CN201210287292 A CN 201210287292A CN 102788987 A CN102788987 A CN 102788987A
- Authority
- CN
- China
- Prior art keywords
- gnss
- positioning system
- module
- app
- assisted
- 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.)
- Granted
Links
- 238000012545 processing Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 abstract description 7
- 230000000576 supplementary effect Effects 0.000 description 19
- 230000005540 biological transmission Effects 0.000 description 5
- 238000012937 correction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- BYGHZDSINXXOSM-UHFFFAOYSA-N 2-(9h-fluoren-2-yl)-5-[5-(9h-fluoren-2-yl)thiophen-2-yl]thiophene Chemical compound C1=C2CC3=CC=CC=C3C2=CC=C1C(S1)=CC=C1C(S1)=CC=C1C1=CC=C2C3=CC=CC=C3CC2=C1 BYGHZDSINXXOSM-UHFFFAOYSA-N 0.000 description 1
- 101150116940 AGPS gene Proteins 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 description 1
- 208000016570 early-onset generalized limb-onset dystonia Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052627 muscovite Inorganic materials 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Landscapes
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention provides an A-GNSS (Assisted Global Navigation Satellite System) assisted positioning system. The assisted positioning system comprises a GNSS reference receiver, a reference station server, a data processing center, an A-GNSS server and an A-GNSS terminal. The A-GNSS terminal comprises an APP (Application) module, a GNSS positioning module and a control module. The APP module receives and analyzes the navigation data obtained from the A-GNSS server according to a positioning request, and outputs assisted navigation information. After adopting the technical proposal of the invention, an existing GNSS portable communication device can realize the assisted positioning function by installing a third application software on the basis without increasing or modifying the hardware.
Description
Technical field
The present invention relates to the satellite navigation signals processing technology field; Relate in particular to a kind of through APP program (third party application) reception and processing GNSS system supplymentary information; To realize A-GNSS (Assisted-Global Navigation Satellite System; Assisted global Navsat positioning system is called for short A-GNSS) system.
Background technology
GLONASS (Global Navigation Satellite System; GNSS) utilize Navsat to carry out timing, location and range finding, can in worldwide, realize round-the-clock, comprehensive three dimensions, speed and the temporal information that real-time high-precision is provided for sea, land and aerial user continuously.At present, GNSS has comprised GPS of USA, Muscovite GLONASS, the Galileo system of European Union, the triones navigation system of China, is example with the gps system, and this system mainly is made up of three parts, i.e. space segment, Ground Control part and user's set part.Space segment is made up of 24 satellites, is distributed on the plane, 6 roads.Ground Control part is by the master station of the work of being in charge of, coordinating whole ground control system, under the control of master station, injects the ground-plane antenna of seeking text, forms as the monitoring station and the communication backup system of automatic data acquisition center to satellite.The user's set part mainly is made up of GPS receiver and satellite antenna.
At present; When user's environment for use is comparatively complicated; Comparatively faint from the GNSS satellite-signal that the GNSS satellite navigation system receives; Receiver needs just might perhaps even possibly correctly not receive and the demodulation of satellite signal for a long time; If extraneous can the data messages such as clock correction parameter, ephemeris, relocatable code phase-delay quantity, Doppler shift and various error corrections of receiver required receiver location, time, visible satellite sequence, each visible satellite in signal capture and positioning calculation process be offered receiver, so according to these information, receiver combines GNSS information and above supplementary to locate; Can shorten primary positioning time; And auxiliary signal capable of using improves integral time improving the sensitivity of receiver, this locator meams be the auxiliary satellite navigation system (Assisted-Global Navigation Satellite System, A-GNSS).
In the existing A-GNSS aided positioning system; A-GNSS builds the satellite parametric reduction receiver in outdoor open space, utilizes mobile communications network (GSM/GPRS, CDMA, TD-SCDMA, WCDMA etc.) to transmit these secondary satellite information to the locating terminal receiver then, is calculated the position at the terminal that is positioned by network-side or terminal; To reduce the time delay that the GNSS chip obtains satellite-signal; Reduce primary positioning time, synchronous signal is more weak is hidden remedying that the area also can the nationality mobile network, and improves sensitivity through navigation bit information and long-time integration; Alleviate the dependency degree of GNSS chip to satellite, structure is shown in accompanying drawing 1.
100 is A-GNSS aided positioning system composition frame chart; Specifically be embodied as: in mobile radio communication, dispose a cover locating platform 101; Locating platform receives the GNSS satellite-signals through GNSS reference receiver 102, and sends output information to reference station server 103,103 and satellite-signal is converted into effective positioning assistance data leaves in the database 104; These data can be updated in life cycle separately; Auxiliary data information in the database 104 sends A-GNSS server 105,105 to through the internet can provide the GNSS location required auxiliary data, and the mutual A-GNSS auxiliary positioning function of accomplishing between the A-GNSS terminal 106.Wherein, Many GNSS receivers have been disposed in the locating platform 101; After through hub the signal of each GNSS receiver being pooled to the GNSS information management platform, all GNSS satellite-signals that just can be in locating platform provides whole GNSS reference net coverage are in case start the A-GNSS positioning flow; Its number of the sub-district at place, i.e. CELLID at present at first can be reported to locating platform in the terminal.Locating platform can obtain the latitude and longitude of base station that the terminal belongs to the sub-district at present according to CELLID, and the database of inquiry positioning assistance data obtains the overhead current satellite ephemeris information in this base station, sends these satellite ephemeris information to terminal through high-level signaling then.This moment, satellite-signal just can be caught according to these satellite ephemeris information in the terminal; Carry out the measurement of pseudorange; And calculate the position at place at present, terminal, could confirm which is current visible satellite and need not be as traditional G NSS location all satellites be all carried out traversal search.Effective like this shortening searched the star time, also reduced battery consumption.If in indoor or buildings compact district; Because the locating terminal sky is blocked; The terminal promptly enables to receive auxiliary data also can't carry out correct measurement the time; Locating platform can adopt non-GNSS location technology (like CELLID, TA, EOTD etc.) that the terminal is positioned, though on precision, decrease, has improved position success rate effectively.
At present; Improving and building along with each GNSS satellite navigation system; Satellite-based location navigation function has obtained the attention and the application of all trades and professions; And, can solve that sensitivity problem and the A-GNSS of short TTFF time also are widely used under the particular surroundings along with the continuous upgrading and the expansion of product functions such as the continuous development of terminal markets such as smart mobile phone flat board and perfect, smart mobile phone flat board.The A-GNSS receiver needs network support; Existing mobile phone, PAD, notebook computer, PDA etc. possess communication function and positioning function; Along with being widely used of portable set; With increasingly high to positioning requirements, portable equipment such as mobile phone, PDA has in the market also been proposed the demand of assist location, also realize advantages of good positioning effect to solve in urban canyons, the bad zone of satellite-signal such as indoor.Therefore, how on existing level of hardware, letting general portable set realize auxiliary positioning function with lower expense and simple mode, is a problem of present mobile platform positioning field.
Summary of the invention
The purpose of this invention is to provide a kind of A-GNSS aided positioning system, can on existing GNSS portable communication apparatus basis, realize auxiliary positioning function, and not need the additional hardware expense.
The present invention provides a kind of A-GNSS aided positioning system, comprises the GNSS reference receiver; The reference station server, data processing centre (DPC), A-GNSS server and A-GNSS terminal; Said A-GNSS terminal comprises the APP module, GNSS locating module and control module, and said APP module is according to Location Request; Receive and resolve the navigation data that obtains from the A-GNSS server, output navigation supplementary.
Further, said control module is controlled said APP module unlatching or is quit work.
Further, said control module is controlled the reception that said navigation supplementary was opened or closed to said GNSS locating module.
Further, said APP module is exported said navigation supplementary through the interface of standard.
Further, the said A-GNSS server that resolved of said positioning system is accomplished.
Further, the said GNSS locating module that resolved of said positioning system is accomplished.
Further, said GNSS locating module is a single mode, bimodulus or multimode locating module.
Further, said GNSS locating module is the Big Dipper-2 a system locating module.
After adopting technical scheme of the present invention, existing GNSS portable communication apparatus can not increase and revise on the basis of hardware, through the mode of third party's application software is installed, realizes auxiliary positioning function.
Description of drawings
Fig. 1 is existing A-GNSS aided positioning system pie graph;
Fig. 2 is an embodiment of the invention A-GNSS aided positioning system pie graph;
APP module workflow diagram when Fig. 3 is embodiment of the invention MSB pattern;
GNSS locating module workflow diagram when Fig. 4 is embodiment of the invention MSB pattern.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The angle that the A-GNSS technology is initiated from request can be divided into: network is initiated and the terminal is initiated two kinds.It is to be issued after the Location Request through WAP PUSH mode or SMS by platform that network is initiated, and the terminal is set up IP with platform and is connected, the completion positioning flow; Initiate at the terminal then is that the terminal is initiatively set up IP with platform and is connected the initiation Location Request.Can be divided into two kinds of MSA and MSB: MSA (MS-Assisted) from the PVT account form and calculate PVT by locating platform after accomplishing pseudo range measurement by locating terminal; MSB (MS-Based) accomplishes measurements and calculations PVT by locating terminal, and locating platform only provides supplementary.
Fig. 2 utilizes A-GNSS to carry out the system of assist location, shown in 200 be A-GNSS assist location receiver system, can realize two kinds of account forms of MSA of A-GNSS system and MSB.Wherein 201 is the A-GNSS server, can provide the GNSS location required auxiliary data through the A-GNSS locating platform, and 203 is the APP application blocks; Accomplish the request of A-GNSS assist location, receive and resolve functions such as assisting navigation data, the navigation supplementary of resolving through standard interface output then; The 204th, the GNSS locating module can select whether to receive the data message of 203APP application program block transfer, does not receive if select; The then independent location navigation function of accomplishing is as if the data message of selective reception APP transmission, at this moment; If the MSA pattern, then the 204GNSS locating module sends the APP module to after calculating measured values such as pseudorange, sends to the A-GNSS server by APP; Accomplish PVT by the A-GNSS server and resolve, send the GNSS locating module to via APP again and accomplish location navigation; If MSB pattern; Then the supplementary that receives of GNSS locating module utilization is accomplished the location navigation function, output PVT object information, and 202 is control module; Whether may command opens the APP functions of modules to save flow, and also whether may command opens the GNSS locating module.
When 202 control modules are opened APP module 203; The completion of 203APP application blocks is communicated by letter with the 201A-GNSS server; When 202 control modules are opened the APP application blocks; 203 obtain the navigation supplementary from the 201A-GNSS server; Resolve the back and directly export the data messages such as clock correction parameter, ephemeris, relocatable code phase-delay quantity, Doppler shift and various error corrections of locating required receiver location, time, visible satellite sequence, each visible satellite through the mark protocol interface to the 202GNSS receiver, if the MSA pattern, the measured values such as pseudorange that the APP module also will receive the calculating of GNSS locating module send to the 201A-GNSS server; The PVT that is accomplished the terminal by the A-GNSS server resolves, and sends positioning result to APP again and sends the GNSS locating module to via APP.The workflow diagram of the APP application blocks under the MSB pattern is as shown in Figure 3, and detailed process is:
(1) APP began 300 o'clock, and 301 send A-GNSS through mobile communications network opens control signal;
(2) position of sub-district, network based locating terminal place; Send the corresponding satellite supplementary in locating terminal position, 302 receive the supplementary of A-GNSS Server Transport through the standard agreement between located in connection agps system server such as cordless communication network or internet and the terminal user;
(3) 303 resolve the supplementary of reception with form according to the content of standard agreement definition, obtain corresponding assisting navigation information;
(4) when the A-GNSS location requirement, the 304 assisting navigation information with parsing in the step (3) send the GNSS receiver to by standard interface, terminal procedure 305.
Based on the GNSS locating module workflow of MSB pattern, as shown in Figure 4, concrete steps are:
(1) beginning of locating terminal location is 400 o'clock, judges whether to carry out the A-GNSS assist location by control module 401 earlier;
(2) carry out the A-GNSS assist location if 401 control modules are judged, then 402 open A-GNSS assist location switch, receive the supplementary of APP transmission, give 403 and carry out catching of satellite-signal; Do not carry out the A-GNSS assist location if 401 control modules are judged, then 405 pairs of satellite-signals carry out blind catching;
(3) if 403 under supplementary, capture the visible satellite signal fast in the step (2), obtain the code phase and the Doppler of satellite, then get into 404 tracking satellite signals, the supplementary that combines APP to transmit obtains the complete navigation text;
(4) if 405 pairs of blind catching of satellite-signal in the step (2), what obtain the visible satellite signal defends asterisk, code phase and Doppler, then get into 406 tracking satellite signals, and demodulation obtains navigation message;
(5) 406 and 404 obtain navigation message after, all can send into 407 and carry out PVT and resolve, locate successfully the back and this time finish 408 in the location.
The present invention has realized a kind of A-GNSS aided positioning system; In this system; Go to realize the reception and the parsing of various different satellite navigation system supplementarys by APP application program module independently; Required information is caught and located to output GNSS navigation neceiver, and the GNSS receiver only need receive the supplementary of APP transmission according to host-host protocol, catches satellite navigation signals and location fast; Shorten the FTTF and the sensitivity that improves receiver of GNSS receiver; Because independently APP can realize the parsing of various satellite navigation system supplementarys, common GNSS receiver only need select whether to receive the supplementary of APP transmission, and the independent supplementary of accomplishing location navigation or passing through to receive the APP transmission realizes the A-GNSS receiver function.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. an A-GNSS aided positioning system comprises, the GNSS reference receiver; The reference station server, data processing centre (DPC), A-GNSS server and A-GNSS terminal; It is characterized in that said A-GNSS terminal comprises the APP module, GNSS locating module and control module; Said APP module receives and resolves the navigation data that obtains from the A-GNSS server according to Location Request, output navigation supplementary.
2. A-GNSS aided positioning system according to claim 1 is characterized in that, said control module is controlled said APP module unlatching or quit work.
3. A-GNSS aided positioning system according to claim 1 is characterized in that, said control module is controlled the reception that said navigation supplementary was opened or closed to said GNSS locating module.
4. according to the described A-GNSS aided positioning system of the arbitrary claim of claim 1 to 3, it is characterized in that said APP module is exported said navigation supplementary through the interface of standard.
5. A-GNSS aided positioning system according to claim 1 is characterized in that, resolving by said A-GNSS server of said positioning system accomplished.
6. A-GNSS aided positioning system according to claim 1 is characterized in that, resolving by said GNSS locating module of said positioning system accomplished.
7. A-GNSS aided positioning system according to claim 6 is characterized in that, said GNSS locating module is a single mode, bimodulus or multimode locating module.
8. A-GNSS aided positioning system according to claim 6 is characterized in that, said GNSS locating module is the Big Dipper-2 a system locating module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210287292.2A CN102788987B (en) | 2012-08-14 | 2012-08-14 | A kind of A-GNSS aided positioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210287292.2A CN102788987B (en) | 2012-08-14 | 2012-08-14 | A kind of A-GNSS aided positioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102788987A true CN102788987A (en) | 2012-11-21 |
| CN102788987B CN102788987B (en) | 2016-12-21 |
Family
ID=47154438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210287292.2A Active CN102788987B (en) | 2012-08-14 | 2012-08-14 | A kind of A-GNSS aided positioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102788987B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176197A (en) * | 2013-02-28 | 2013-06-26 | 江苏天源电子有限公司 | Auxiliary Beidou satellite positioning system and positioning tracking terminal based on same |
| CN104570025A (en) * | 2013-10-18 | 2015-04-29 | 芯讯通无线科技（上海）有限公司 | Positioning device and positioning method thereof |
| CN105068100A (en) * | 2015-08-03 | 2015-11-18 | 厦门金网星联科技有限公司 | Satellite navigation assistant positioning system |
| CN105182384A (en) * | 2015-08-24 | 2015-12-23 | 桂林电子科技大学 | Dual-mode real-time pseudo-range differential positioning system and pseudo-range correction data generation method |
| CN105357284A (en) * | 2015-10-20 | 2016-02-24 | 中国有色金属长沙勘察设计研究院有限公司 | GNSS (Global Navigation Satellite System) server and implementation method thereof |
| WO2017084361A1 (en) * | 2015-11-19 | 2017-05-26 | 乐视控股（北京）有限公司 | Method and device for hybrid positioning based on v2x and gnss |
| CN109358354A (en) * | 2018-11-20 | 2019-02-19 | 中国电子科技集团公司第五十四研究所 | A kind of handheld navigation signal simulator |
| CN112904372A (en) * | 2021-04-22 | 2021-06-04 | 电子科技大学 | Auxiliary satellite navigation system and positioning method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1890997A (en) * | 2003-10-10 | 2007-01-03 | 艾利森电话股份有限公司 | Mobile-terminal gateway |
| CN101715163A (en) * | 2009-11-24 | 2010-05-26 | 中兴通讯股份有限公司 | Method and device for acquiring auxiliary positioning data |
-
2012
- 2012-08-14 CN CN201210287292.2A patent/CN102788987B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1890997A (en) * | 2003-10-10 | 2007-01-03 | 艾利森电话股份有限公司 | Mobile-terminal gateway |
| CN101715163A (en) * | 2009-11-24 | 2010-05-26 | 中兴通讯股份有限公司 | Method and device for acquiring auxiliary positioning data |
Non-Patent Citations (1)
| Title |
|---|
| 尚翠丽: "基于A-GPS和GSM混合定位系统的终端软件的实现与完善", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176197A (en) * | 2013-02-28 | 2013-06-26 | 江苏天源电子有限公司 | Auxiliary Beidou satellite positioning system and positioning tracking terminal based on same |
| CN103176197B (en) * | 2013-02-28 | 2014-11-05 | 江苏天源电子有限公司 | Auxiliary Beidou satellite positioning system and positioning tracking terminal based on same |
| CN104570025A (en) * | 2013-10-18 | 2015-04-29 | 芯讯通无线科技（上海）有限公司 | Positioning device and positioning method thereof |
| CN105068100A (en) * | 2015-08-03 | 2015-11-18 | 厦门金网星联科技有限公司 | Satellite navigation assistant positioning system |
| CN105182384A (en) * | 2015-08-24 | 2015-12-23 | 桂林电子科技大学 | Dual-mode real-time pseudo-range differential positioning system and pseudo-range correction data generation method |
| CN105357284A (en) * | 2015-10-20 | 2016-02-24 | 中国有色金属长沙勘察设计研究院有限公司 | GNSS (Global Navigation Satellite System) server and implementation method thereof |
| CN105357284B (en) * | 2015-10-20 | 2019-02-22 | 中国有色金属长沙勘察设计研究院有限公司 | A kind of GNSS server and its implementation |
| WO2017084361A1 (en) * | 2015-11-19 | 2017-05-26 | 乐视控股（北京）有限公司 | Method and device for hybrid positioning based on v2x and gnss |
| CN109358354A (en) * | 2018-11-20 | 2019-02-19 | 中国电子科技集团公司第五十四研究所 | A kind of handheld navigation signal simulator |
| CN109358354B (en) * | 2018-11-20 | 2020-12-15 | 中国电子科技集团公司第五十四研究所 | Handheld navigation signal simulator |
| CN112904372A (en) * | 2021-04-22 | 2021-06-04 | 电子科技大学 | Auxiliary satellite navigation system and positioning method thereof |
| CN112904372B (en) * | 2021-04-22 | 2024-01-12 | 电子科技大学 | Auxiliary satellite navigation system and positioning method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102788987B (en) | 2016-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zangenehnejad et al. | GNSS smartphones positioning: Advances, challenges, opportunities, and future perspectives | |
| CN102788987A (en) | A-GNSS (Assisted Global Navigation Satellite System) assisted positioning system | |
| KR101183753B1 (en) | Tdoa/gps hybrid wireless location system | |
| CN101365957B (en) | Global navigation satellite system | |
| US7970419B2 (en) | Systems, devices and methods for location determination | |
| CN102788982A (en) | Assisted positioning-monitoring system | |
| TWI460457B (en) | Sensor-assisted location-aware mobile device | |
| US20230072669A1 (en) | Vehicle positioning using pseudo range observation and doppler observation values | |
| CN101558323B (en) | Time-based ephemeris identity in assistance data and assistance data request messages | |
| CN105353391A (en) | Location augmentation system of multi-network integration supporting multi-type location terminals and location augmentation method of multi-network integration supporting multi-type location terminals | |
| CN1608211A (en) | GPS satellite signal acquisition assistance system and method in a wireless communications network | |
| MX2008010874A (en) | Global navigation satellite system. | |
| CN103210321A (en) | Terminal equipment positioning method and apparatus | |
| CN102866410A (en) | Method for position determination with measurement stitching | |
| US20080076449A1 (en) | Mobile communication terminal for receiving position information service and method thereof | |
| CN101529269B (en) | Providing and using messages including time related information | |
| CN111781619B (en) | Positioning method, device, equipment and storage medium based on near field communication network | |
| CN101446635B (en) | Ultra-low power consumption, low cost GPS chip architecture for mobile devices | |
| TW201027104A (en) | Systems and methods for accessing data over a short-range data link to enhance the performance of a navigational unit | |
| CN113093250A (en) | Pseudo-range observation data restoration method, positioning information determination method and device | |
| KR20120048953A (en) | Apparatus, system and method for determining position of mobile terminal using access point including gnss receiver | |
| Li et al. | Open source GNSS reference server for assisted-global navigation satellite systems | |
| KR101041313B1 (en) | Wireless telecommunication terminal and method for calculating location information | |
| JP5078352B2 (en) | Partial almanac collection system | |
| CN112904372A (en) | Auxiliary satellite navigation system and positioning method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 523808, A410-A411, room 17, No. two, Songshan hi tech Industrial Development Zone, Songshan Lake, Dongguan, Guangdong, Dongguan, China Applicant after: TECHTOTOP MICROELECTRONICS Co.,Ltd. Address before: 523808, A410-A411, room 17, No. two, Songshan hi tech Industrial Development Zone, Songshan Lake, Dongguan, Guangdong, Dongguan, China Applicant before: TECHTOTOP MICROELECTRICS Co.,Ltd. DONGGUAN CITY |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: DONGGUAN TECHTOP MICROELECTRONICS CO., LTD. TO: TAIDOU MICROELECTRONICS TECHNOLOGY CO., LTD. |
|
| CB02 | Change of applicant information |
Address after: 510663 Guangzhou City, Guangdong province high tech Development Zone, Science City, Cai Cai road, room, No. 11, room A701 Applicant after: TECHTOTOP MICROELECTRONICS Co.,Ltd. Address before: Two road 523808 in Guangdong province Dongguan City Songshan Lake high tech Industrial Development Zone headquarters No. 17 room A410-A411 Applicant before: TECHTOTOP MICROELECTRONICS Co.,Ltd. |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Lining Inventor after: Gao Feng Inventor after: Xu Xiangbin Inventor before: Liu Lining |
|
| CB03 | Change of inventor or designer information | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 510530 Room 301 and 401, Building 42, Dongzhong Road, East District, Guangzhou Economic and Technological Development Zone, Guangdong Province Patentee after: TECHTOTOP MICROELECTRONICS Co.,Ltd. Address before: 510663 Guangzhou City, Guangdong province high tech Development Zone, Science City, Cai Cai road, room, No. 11, room A701 Patentee before: TECHTOTOP MICROELECTRONICS Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An auxiliary positioning system of a-gnss Effective date of registration: 20210107 Granted publication date: 20161221 Pledgee: China Co. truction Bank Corp Guangzhou Tianhe subbranch Pledgor: TECHTOTOP MICROELECTRONICS Co.,Ltd. Registration number: Y2021440000004 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220310 Granted publication date: 20161221 Pledgee: China Co. truction Bank Corp Guangzhou Tianhe subbranch Pledgor: TECHTOTOP MICROELECTRONICS Co.,Ltd. Registration number: Y2021440000004 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An a-gnss aided positioning system Effective date of registration: 20220630 Granted publication date: 20161221 Pledgee: Societe Generale Bank Limited by Share Ltd. Guangzhou branch Pledgor: TECHTOTOP MICROELECTRONICS Co.,Ltd. Registration number: Y2022980009607 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20161221 Pledgee: Societe Generale Bank Limited by Share Ltd. Guangzhou branch Pledgor: TECHTOTOP MICROELECTRONICS Co.,Ltd. Registration number: Y2022980009607 |