CN109168132A - Information identification and method of reseptance and device based on position control - Google Patents
Information identification and method of reseptance and device based on position control Download PDFInfo
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- CN109168132A CN109168132A CN201810722798.9A CN201810722798A CN109168132A CN 109168132 A CN109168132 A CN 109168132A CN 201810722798 A CN201810722798 A CN 201810722798A CN 109168132 A CN109168132 A CN 109168132A
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- information
- position control
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
- G01S19/04—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing carrier phase data
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
- G01S19/07—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing data for correcting measured positioning data, e.g. DGPS [differential GPS] or ionosphere corrections
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/23—Testing, monitoring, correcting or calibrating of receiver elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/40—Correcting position, velocity or attitude
- G01S19/41—Differential correction, e.g. DGPS [differential GPS]
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Radio Relay Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The information based on position control that the present invention provides a kind of identifies and method of reseptance, comprising: information distributing end encode and be modulated information to information distributing region；Information receiving end generates local coder by position control code generator；Information receiving end receives the data that information distributing end is broadcast and selects the information suitable for information distributing region according to local coder corresponding with information distributing region, and demodulates to the information selected.The system bigger for service range, the advantage that the method for subregion agreement coding receives control information is bigger, reception amount including reducing data, reduce packet loss quantity, promote treatment effeciency, the demand to user receiving end processing capacity, memory source etc. is reduced, to reduce the cost of user receiving end.In traffic above-ground information (containing navigation correction information) broadcast, it can be achieved that the seamless trans-regional switching of acquisition of information, ensures the continuity and validity of acquisition of information.
Description
Technical field
The present invention relates to data identification and reception technique field, and in particular to it is a kind of based on position control information identification and
Method of reseptance and device.
Background technique
Many information services are, the location informations of Internet Information Service available user relevant with position, thus
Location based service (LBS:LocationBasedServices) information is provided for user, incoherent information is not necessarily to
It is sent to user.In radio broadcasting, either satellite broadcasting or terrestrial radio broadcast, information is in entirely covering model
Enclose propagation.
In the GNSS (Global Navigation Satellite System, Global Navigation Satellite System) that satellite is broadcast
In differential correction information, signal is identical in its signal cover, but user position only needs and user local
The relevant control information in position.This causes user to receive bulk information, but needs from these bulk informations through the side such as search
Formula extracts information useful to oneself on a small quantity.All there is biggish waste to the resource for broadcasting end and receiving end in this, such as larger
Service coverage, Grid dimension be more than it is several hundred a when, the reception control information of full dose simultaneously search current grid point will waste
Message capacity not only consumes limited calculating and memory source, and time-consuming.
In terrestrial radio broadcast, such as traffic information broadcasting, the information scope of application are only regional areas.It uses at present
Mode be local zone broadcast, adjacent area using different frequency broadcasts to avoid interfering with each other, this means that vapour
Vehicle need just to can guarantee according to the timely switching frequency of variation (channel) of position during long-distance running acquisition of information not between
It is disconnected.Otherwise relevant information cannot be received.
Summary of the invention
The present invention by being encoded at information distributing end according to effective suitable application region of information and being modulated to information,
And the receiving end (user) of information then according to oneself from navigational satellite system (GNSS) obtained in position control code generator it is raw
At local code, the information received is demodulated.Only extract useful information relevant with local position.
Aspect is broadcast in navigation correction information satellite, the purpose of the present invention is control according to user receiving end dynamic position
To corresponding coding, solve to avoid when a wide range of star base enhances and services using the capture of its control information for realizing this area
Each user receives termination and demodulates incoherent useless control information.
In traffic above-ground information (containing navigation correction information) broadcast, the purpose of the present invention is according to user receiving end dynamic bit
It sets control to be encoded accordingly, receives unit frequency without switching, the seamless trans-regional switching of acquisition of information can be realized.It ensures
The continuity and validity of acquisition of information.
The technical solution adopted by the invention is as follows:
A kind of information identification and method of reseptance based on position control, comprising:
Information distributing end encode and be modulated information to information distributing region；
Information receiving end generates local coder by position control code generator；
Information receiving end receives the data broadcast of information distributing end, according to local coder corresponding with information distributing region,
The information suitable for information distributing region is selected, and the information selected is demodulated.
Further, information receiving end obtains position control code generator from navigational satellite system.
Further, the information distributing end includes that satellite broadcasting broadcasts end or end is broadcast in terrestrial broadcasting.
Further, satellite broadcasting broadcasts end in satellite-signal coverage area, to each information distributing region distribution one
A coding is modulated processing to the information and coding in each information distributing region, is then modulated on carrier wave and is broadcast.
Further, the coverage area that end is broadcast in each terrestrial broadcasting distributes a coding, to each information distributing region
Information and coding be modulated processing, be then modulated on carrier wave and broadcast.
Further, in the overlapped coverage region that end is broadcast in terrestrial broadcasting, the coexisting region of coding, information are generated
Receiving end can demodulate information corresponding with the coding using any one coding in the coexisting region of coding.
Further, terrestrial broadcasting broadcasts end and broadcasts information using the same frequency.
Also a kind of star base enhancement information processing method of the present invention, including based on position control information identification and recipient
Method, this method comprises:
Information distributing end encode and be modulated information to information distributing region；
Information receiving end generates local coder by position control code generator；
Information receiving end receives the data broadcast of information distributing end, according to local coder corresponding with information distributing region,
The information suitable for information distributing region is selected, and the information selected is demodulated.
The present invention also provides a kind of terrestrial broadcastings to broadcast seamless cross district switching method, including the information identification based on position control
And method of reseptance, this method comprises:
Information distributing end encode and be modulated information to information distributing region；
Information receiving end generates local coder by position control code generator；
Information receiving end receives the data broadcast of information distributing end, according to local coder corresponding with information distributing region,
The information suitable for information distributing region is selected, and the information selected is demodulated.
The information based on position control that the present invention also provides a kind of identifies and reception device, described device include:
Coding for encoding to information distributing region, and is pre-stored in information distributing end by coding unit；
Position control code generator, for generating local coder based on the information receiving end region that is encoded to prestored,
Local coder has corresponding relationship with the coding for being pre-stored in information distributing end, and information receiving end receives information according to local coder and broadcasts
The information of originator；
Demodulating unit, for being demodulated to the received information of information receiving end.
The beneficial effects of the present invention are:
The system bigger for service range, the advantage that the method for subregion agreement coding receives control information is bigger, packet
The reception amount for reducing data is included, packet loss quantity is reduced, promotes treatment effeciency, reduces and user receiving end processing capacity, memory is provided
The demand in source etc., to reduce the cost of user receiving end.
In traffic above-ground information (containing navigation correction information) broadcast, it can be achieved that the seamless trans-regional switching of acquisition of information, is protected
Hinder the continuity and validity of acquisition of information.
Detailed description of the invention
Fig. 1 is that satellite of the present invention broadcasts coverage area division exemplary diagram；
Fig. 2 is that exemplary diagram is broadcast on ground of the present invention；
Fig. 3 is satellite navigation enhancement information in subregion of the present invention identification and method of reseptance schematic diagram；
Fig. 4 is that the present invention is based on the identification of the information of position control and reception device structure charts.
Specific embodiment
In navigation enhancing serving satellite is broadcast, the control information of different zones can be modulated by encoding,
User terminal (information receiving end) is then by initial alignment as a result, control code generator generation and information distributing by location information
The corresponding coding in region demodulates signal, obtains the control information of corresponding region, user terminal is avoided to need to demodulate all clothes
It is engaged in the control information in region, and needs to carry out full search just and can obtain the control information of corresponding grid property, thus significantly
It promotes user terminal treatment effeciency, reduce the demand to processor and memory source.
In terrestrial radio broadcast, traffic information broadcasting (may include differential correction information) is in the whole country using same
Frequency, the applicable information in different zones region are modulated and are broadcast by pre-arranged code.User terminal (information receiving end) passes through ground
It manages location information and obtains scheduled region code, and control local code generator and generate corresponding coding, the solution for broadcast message
Adjust, the signal overlap area of adjacent area because using different codings, can tell information relevant to geographical location and
It can guarantee without the uninterrupted of frequency error factor and acquisition of information.
Hereinafter, in conjunction with the accompanying drawings and embodiments to the present invention is based on the identifications of the information of position control and method of reseptance to make into one
Step illustrates.
Mode is broadcast in satellite broadcasting, in satellite-signal coverage area, by control information according to the grid used when calculating
A coded sequence is distributed to each region in region, control information used in different grids with respective different coded sequence come
Coverage area is divided into 9 regions, the coding of the control information in each region and its effective geographic area as shown in Figure 1 by differentiation
It is modulated processing, is then modulated on carrier wave (such as L-band) and is broadcast.This method is in fact by satellite whole district information
It broadcasts and has been modified to geographical area information and broadcasts.Not only achieve the effect that zone beam is broadcast, and the regional choice having
Flexibility.
Mode is broadcast in terrestrial broadcasting, the coverage area of each transmitting station distributes a coded sequence, such as a-quadrant point
With code 1, as shown in Figure 2.The coding of the information broadcast in each region or control information and its effective coverage is modulated processing, so
After be modulated on carrier wave (such as VHF wave band) and broadcast.It is two or three in the overlay region of two or three coverage areas
The coexistence of coding, user terminal using any one coding can demodulate with this yard of corresponding effective information, without solving
Recall the information in other regions.On the other hand coding also ensures that coexistence mobile subscriber receives effective information incessantly.
High-precision navigation terminal (receiver) in user terminal, such as positioned at a-quadrant obtains grid ID using initial alignment
(A), coding (code 1) is prestored by the way that regional ID inquiry is corresponding, is then selected with algorithm process (similar to the capture of CDMA signal)
Wherein it is suitable for the control information in the region out, the control information includes global correcting information and region ionosphere, troposphere
Correcting information etc..In this manner, although the area A receives function and receives all (satellite broadcast modes) or part (terrestrial broadcasting
Mode) data, but only demodulate with the relevant information of code 1, and abandon other all information unrelated with a-quadrant.Specific mistake
Journey is as shown in Figure 3.The control information of other grids is using the signal of different patterns because not with the locally generated pattern of receiver
It cannot be demodulated together.
The present invention also proposes a kind of star base enhancement information processing method, including the information identification based on position control and receives
Method.
The present invention also goes out a kind of terrestrial broadcasting and broadcasts seamless cross district switching method, including based on position control information identification and
Method of reseptance.
The present invention also proposes a kind of information identification and reception device based on position control, as shown in figure 4, described device packet
It includes:
Coding for encoding to information distributing region, and is pre-stored in information distributing end by coding unit；
Position control code generator, for generating local coder based on the information receiving end region that is encoded to prestored,
Local coder has corresponding relationship with the coding for being pre-stored in information distributing end, and information receiving end receives information according to local coder and broadcasts
The information of originator；
Demodulating unit, for being demodulated to the received information of information receiving end.
Although the invention has been described by way of example and in terms of the preferred embodiments, but it is not for limiting the present invention, any this field
Technical staff without departing from the spirit and scope of the present invention, may be by the methods and technical content of the disclosure above to this hair
Bright technical solution makes possible variation and modification, therefore, anything that does not depart from the technical scheme of the invention, and according to the present invention
Technical spirit any simple modifications, equivalents, and modifications to the above embodiments, belong to technical solution of the present invention
Protection scope.
Claims (10)
1. a kind of information identification and method of reseptance based on position control characterized by comprising
Information distributing end encode and be modulated information to information distributing region；
Information receiving end generates local coder by position control code generator；
Information receiving end receives the data that information distributing end is broadcast and is selected according to local coder corresponding with information distributing region
It is demodulated suitable for the information in information distributing region, and to the information selected.
2. a kind of information identification and method of reseptance based on position control as described in claim 1, which is characterized in that information connects
Receiving end obtains position control code generator from navigational satellite system.
3. a kind of information identification and method of reseptance based on position control as claimed in claim 2, which is characterized in that the letter
It includes that satellite broadcasting broadcasts end or end is broadcast in terrestrial broadcasting that breath, which broadcasts end,.
4. a kind of information identification and method of reseptance based on position control as claimed in claim 3, which is characterized in that satellite is wide
End is broadcast in satellite-signal coverage area, a coding is distributed to each information distributing region, to each information distributing area
The information and coding in domain are modulated processing, are then modulated on carrier wave and are broadcast.
5. a kind of information identification and method of reseptance based on position control as claimed in claim 3, which is characterized in that eachly
The wide coverage area for broadcasting end distributes a coding, is modulated place to the information and coding in each information distributing region
Reason, is then modulated on carrier wave and is broadcast.
6. a kind of information identification and method of reseptance based on position control as claimed in claim 5, which is characterized in that on ground
It broadcasts in the overlapped coverage region at end, generates the coexisting region of coding, coexisting region of the information receiving end in coding
It is interior that information corresponding with the coding can be demodulated using any one coding.
7. a kind of information identification and method of reseptance based on position control as claimed in claim 6, which is characterized in that ground is wide
It broadcasts end and information is broadcast using the same frequency.
8. a kind of star base enhancement information processing method, which is characterized in that including as claimed in claim 4 based on position control
Information identification and method of reseptance.
9. seamless cross district switching method is broadcast in a kind of terrestrial broadcasting, which is characterized in that including being based on position as claimed in claim 7
The information of control identifies and method of reseptance.
10. a kind of information identification and reception device based on position control, which is characterized in that described device includes:
Coding for encoding to information distributing region, and is pre-stored in information distributing end by coding unit；
Position control code generator, it is local for generating local coder based on the information receiving end region that is encoded to prestored
The coding for encoding and being pre-stored in information distributing end has corresponding relationship, and information receiving end receives information distributing end according to local coder
Information；
Demodulating unit, for being demodulated to the received information of information receiving end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810722798.9A CN109168132A (en) | 2018-07-03 | 2018-07-03 | Information identification and method of reseptance and device based on position control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810722798.9A CN109168132A (en) | 2018-07-03 | 2018-07-03 | Information identification and method of reseptance and device based on position control |
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| Publication Number | Publication Date |
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| CN109168132A true CN109168132A (en) | 2019-01-08 |
Family
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| CN201810722798.9A Pending CN109168132A (en) | 2018-07-03 | 2018-07-03 | Information identification and method of reseptance and device based on position control |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113645003A (en) * | 2021-08-09 | 2021-11-12 | 武汉熙瑞祥云信息科技有限公司 | Regional oriented digital broadcasting and receiving system and method |
| CN114598374A (en) * | 2020-12-07 | 2022-06-07 | 千寻位置网络有限公司 | Data processing method and device, electronic equipment and computer readable medium |
| CN115913323A (en) * | 2022-10-14 | 2023-04-04 | 西安空间无线电技术研究所 | Low-orbit access selection method based on space-time grid and storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6594469B1 (en) * | 2000-08-29 | 2003-07-15 | Globalstar L.P. | Methods and apparatus for broadcasting regional information over a satellite communication system |
| US20050085183A1 (en) * | 2003-10-21 | 2005-04-21 | Samsung Electronics Co., Ltd | Digital broadcast system for providing area-specialized additional information broadcast service and broadcast service method using the same |
| CN1856999A (en) * | 2003-09-22 | 2006-11-01 | 皇家飞利浦电子股份有限公司 | Method and device for digital broadcasting |
| CN101300752A (en) * | 2005-10-06 | 2008-11-05 | 三星电子株式会社 | Method of acquiring initial GPS signal in broadcasting system and system using the method |
| US7535402B1 (en) * | 2004-04-19 | 2009-05-19 | Novariant, Inc. | Navigation with satellite communications |
| CN101715099A (en) * | 2009-09-11 | 2010-05-26 | 数源科技股份有限公司 | Area information based system and method for realizing the directed broadcasting of data broadcasting |
| CN102905218A (en) * | 2011-07-29 | 2013-01-30 | 北京三星通信技术研究有限公司 | Broadcasting service data transmission method |
| CN103686997A (en) * | 2013-12-10 | 2014-03-26 | 中国民用航空飞行校验中心 | Ground-based broadcasting type locating method |
-
2018
- 2018-07-03 CN CN201810722798.9A patent/CN109168132A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6594469B1 (en) * | 2000-08-29 | 2003-07-15 | Globalstar L.P. | Methods and apparatus for broadcasting regional information over a satellite communication system |
| CN1856999A (en) * | 2003-09-22 | 2006-11-01 | 皇家飞利浦电子股份有限公司 | Method and device for digital broadcasting |
| US20070124750A1 (en) * | 2003-09-22 | 2007-05-31 | Koninklijke Philips Electronics N.V. | Method and device for digital broadcasting |
| US20050085183A1 (en) * | 2003-10-21 | 2005-04-21 | Samsung Electronics Co., Ltd | Digital broadcast system for providing area-specialized additional information broadcast service and broadcast service method using the same |
| US7535402B1 (en) * | 2004-04-19 | 2009-05-19 | Novariant, Inc. | Navigation with satellite communications |
| CN101300752A (en) * | 2005-10-06 | 2008-11-05 | 三星电子株式会社 | Method of acquiring initial GPS signal in broadcasting system and system using the method |
| CN101715099A (en) * | 2009-09-11 | 2010-05-26 | 数源科技股份有限公司 | Area information based system and method for realizing the directed broadcasting of data broadcasting |
| CN102905218A (en) * | 2011-07-29 | 2013-01-30 | 北京三星通信技术研究有限公司 | Broadcasting service data transmission method |
| CN103686997A (en) * | 2013-12-10 | 2014-03-26 | 中国民用航空飞行校验中心 | Ground-based broadcasting type locating method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114598374A (en) * | 2020-12-07 | 2022-06-07 | 千寻位置网络有限公司 | Data processing method and device, electronic equipment and computer readable medium |
| CN114598374B (en) * | 2020-12-07 | 2023-08-29 | 千寻位置网络有限公司 | Data processing method, device, electronic equipment and computer readable medium |
| CN113645003A (en) * | 2021-08-09 | 2021-11-12 | 武汉熙瑞祥云信息科技有限公司 | Regional oriented digital broadcasting and receiving system and method |
| CN115913323A (en) * | 2022-10-14 | 2023-04-04 | 西安空间无线电技术研究所 | Low-orbit access selection method based on space-time grid and storage medium |
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Application publication date: 20190108 |