Method and device for navigation systems

FIELD: physics.

SUBSTANCE: network element (M) for generating backup data has a control element (M.1) for generating back up data relating to one or more base stations (S1, S2) of at least one navigation system, and a transmitting element (M.3.1) for transmitting back up data over a communication network (P) to a device (R). The positioning device (R) has a positioning receiver (R3) for positioning based on one or more signals transmitted by base stations (S1, S2) over at least one of the said satellite navigation systems; a receiver (R.2.2) for receiving back up data relating to at least one navigation system from the network element (M); and an analysis element (R.1.1) adapted for analysing the received back up data in order to detect information relating to the status of the said one or more signals from the base stations (S1, S2) of the navigation system. The said information relating to the status of the said one or more signals from the base stations (S1, S2) contain indicators to the base station (S1, S2) to which the signal relates, and the said status, which indicates suitability of the signal for using. The device (R) is adapted such that, the signal indicated as unsuitable for use is not used for positioning.

EFFECT: increased accuracy of determining location by providing the positioning device with a list of defective signals transmitted by a specific satellite.

29 cl, 6 dwg, 5 tbl

 

The technical field to which the invention relates.

The invention relates to the field of supporting navigation systems and, in particular, to the format in which information related to the degree of health of the satellites, distributed from the communication network to the terminal. The invention also relates to a device containing the receiver positioning for performing positioning on the basis of one or more signals of satellite navigation systems. The invention also relates to a network element containing the transmitter for transmission to the receiver supports data satellite navigation system. In addition, the invention relates to methods of delivery supporting data satellite navigation device, and method of using supporting data when the positioning device. The invention also relates to a module, the computer program product signal, the carrier having recorded thereon a signal, and server supporting data.

Background of invention

One of the known navigation system is GPS (global positioning system, Global Positioning System), which currently includes more than 20 satellites, half of which is typically located simultaneously in the field of view of the receiver. These satellites transmit, for example, ephemeris data of the satellite, and time data of the satellite. The receiver used for positioning, usually concludes its location by calculating the travel time of the signals received by the receiver simultaneously from several satellites belonging to the positioning system, and calculates the transmission time (Time of Transmission, ToT) signal. For positioning the receiver should normally receive a signal from at least four satellites in view to calculate the location. Another already running a navigation system is the Russian GLONASS (global Navigation System).

In the future will also be available other than GPS and GLONASS navigation system based on satellites. Europe's Galileo system is designed, which will be launched in the next few years. Also expand the adjustments on the basis of the satellites (Space Based Augmentation Systems SBAS)such as WAAS (Wide Area Augmentation System), EGNOS (European Geostationary Navigation Overlay Service) and GAGAN (GPS Aided GEO Augmented Navigation). Increasingly use local adjustments (Local Area Augmentation Systems, LAAS), use of fixed ground-based navigation station. In fact, the system LAAS are not in fact a navigation system based on satellites, although the navigation station is defined as PS is the SAR satellites or pseudolites". Navigation principles applicable to systems based on artificial Earth satellites, can also be applied to systems LAAS. The signals of the pseudo-satellites can be received by a standard receiver for the global satellite navigation systems (Global Navigation Satellite System, GNSS). In addition, Japan has developed its own GPS system is called a system of Quasi-Zenith Satellite System (QZSS).

Navigation system based on satellites, including systems that use pseudo-satellites can generally be defined as global satellite navigation systems (Global Navigation Satellite System, GNSS). In the future, you may be positioning receivers that will be able to perform positioning using simultaneously or alternatively, multiple navigation systems. Such hybrid receivers can switch from the first system to the second system in the case when, for example, the intensity signals of the first system is below a certain limit, or visible satellites of the first system is insufficient, or the constellation of visible satellites of the first system is inadequate for positioning. Discussion the simultaneous use of different systems under difficult conditions, for example in urban areas, where visible is the limited number of satellites. In such a case is almost impossible to navigate on the basis of only one system due to the low availability of signals. However, the integrated use of different navigation systems allows you to navigate in these difficult signal conditions.

Each satellite of the GPS system transmits a sounding signal at the carrier frequency of 1575.42 MHz, which is called the L1 frequency. This frequency is also indicated in the form 154f0where f0=10,23 MHz. In addition, the satellites transmit the other of the probe signal at the carrier frequency 1227,6 MHz, called the L2 frequency (which is equal to 120f0). The satellite modulation of these signals is performed using at least one pseudo-random sequence. For each satellite, this pseudo-random sequence is different. As a result of modulation is generated Kodo-modulated wideband signal. Used modulation technique allows the receiver to distinguish between signals transmitted from different satellites, although essentially they use when transmitting carrier frequencies are the same. The Doppler effect causes a slight (±5 KHz) change the carrier frequency depending on the geometry of the constellation. This method of modulation is called multiple access, code division multiple access (Code Division Multiple Access, CDMA). Each satellite is used to modulate the signal L1 pseudo-random sequence is, for example, so-called code C/a (Coarse/Acquisitin), belonging to the family of codes gold (Gold). Each GPS satellite transmits a signal using the individual code/A. Codes are formed as the sum modulo 2 of two 1023-bit sequence. The first binary sequence G1 is generated using the polynomial X10+X3+1, and the second binary sequence G2 is formed by delaying the polynomial X10+X9+X8+X6+X3+X2+1 so that the delay is different for each satellite. This arrangement allows to produce different C/a codes using identical codes generator. Thus, the C/a-codes are binary codes, the speed of transmission elements in which the GPS system is equal to 1.023 MHz. Code With/And contains 1023 elementary signal, where the duration of the code period is 1 MS. The carrier signal L1 is then modulated with navigation information with a bit data rate of 50 bits/s Navigation information comprises data on the degree of health of the satellite, its orbit, the operation mode of the clock generator, etc.

In the GPS satellites broadcast navigation message, including ephemeris data and time data that is used in a positioning receiver to determine the location of the satellite at a given time. These ephemeris data and the data is sent in frames, which are then broken down into podckaji. Figure 6 shows an example of such a structure of the frame FR. In the GPS system, each frame contains 1500 bits, divided into 5 podkatov, each of which consists of 300 bits. Because the transmission of one bit is 20 MS, for transmission of each podagra need 6 seconds, and the entire frame is transmitted for 30 seconds. Podkatom are assigned numbers from 1 to 5. Each potcake 1, in which, for example, data transfer time, the time of the transfer podagra, as well as information about the deviation hours of the satellite with respect to time in the GPS system.

Podckaji 2 and 3 are used to transmit ephemeris data. Podcat 4 contains other system information, such as coordinated universal time (UTC). Podcat 5 is designed to transfer the almanac data for all satellites. The logical object of these podkatov and frames is called a navigation message GPS, which includes 25 frames or 125 podkatov. Thus, the length of the navigation message is 12 minutes 30 seconds.

In the GPS system time is measured in seconds from the beginning of the week. In the GPS system as the beginning of the week is midnight between Saturday and Sunday. Each transmitted podcat contains information on the time of the GPS week, when passed podcat. Thus, the time data indicates the time of transmission of a particular bit, the EU is ü in the GPS this is the moment of transmission of the last bit in potcake. On satellites, the time is measured using a high-precision atomic chronometers. Despite this, the operation of each satellite is controlled in the control center for the GPS system (not shown), where, for example, compares the time to detect timing errors in the satellites and transmit this information to the satellite.

The satellites during their work, monitor the condition of the equipment. For example, satellites can use the so-called operation of self-control to perform the detection and recording of possible malfunctions in the equipment. Errors and failures can be instant or longer. Based on the degree of serviceability of some of the faults can be corrected or information submitted faulty satellite, can be completely ignored. Faulty satellite installs a sign indicating its failure, in the field of the degree of health of the satellite navigation message. It is also possible that the control unit of the navigation system satellite detects abnormal operation of the satellite or its signals. Therefore, the control unit can also be set for such a satellite indication of a failed state. This indication can also be set when you are testing the satellite, or in time for the th correction of the satellite's orbit.

In addition, it is possible detection of anomalies in the functioning of the satellite by analyzing the transferred signals. For example, the observation station can measure the forecast error of the pseudorange and, if the forecast error deviates from the calculated forecast errors by more than a predefined threshold, the observation station decides to improper functioning of the satellite. Another option is to compare the accuracy of the ephemeris data transmitted by the satellite, with the reference data.

In different navigation systems can vary the number of satellites, their orbital parameters, the structure of the navigation message, etc. So the operating parameters of the receiver positioning based on GPS may not be applicable in the receiver of the other positioning satellite system. On the other hand, at least the principles of the development of the Galileo system indicate that there will be some similarities systems GPS and Galileo that the Galileo receiver will be able, in any case, to use for positioning signals from GPS satellites.

Positioning device (or receiver positioning), i.e. the device that has the ability to perform positioning (to determine your position) on the basis of signals transmitted in the navigation system, not by the teaching strong enough signals from the required number of satellites. For example, it may happen that when executed by a device of the three-dimensional positioning it cannot receive signals from four satellites. This can happen indoors, in urban environment, etc. For communication networks have been developed methods and systems to determine the location under adverse conditions of reception of signals. The requirement to use at least three signals in two-dimensional positioning or four signals in the three-dimensional positioning can not be reduced in the case where the communication network provides only support navigation model in the receiver. However, if the network provides, for example, pressure support, which can be used to determine the height above sea level, just three satellites for three-dimensional positioning, provided that the receiver positioning has access to barometric measurements (e.g., built-in barometer). These so-called supporting navigation systems use other communication network for transmitting information relating to satellites in a positioning device. Accordingly, such devices positioning with the ability to receive and use supporting data, can be called supported GNSS receivers or, more commonly supported by the devices position the scan.

Currently, only support data related to the GPS satellites can be supported by GNSS receivers within the network multiple access code division multiple access (Code Division Multiple Access, CDMA), global system for mobile communications (Global System for Mobile communications, GSM) network and a broadband multiple access code division multiple access (Wideband Code Division Multiple Access W-CDMA). This format supports data directly corresponds to the GPS navigation model defined in the specification GPS-ICD-200 SIS (ICD Interface Control Document; SIS, Signal-In-Space). This navigation model includes the synchronization model and the orbital model. For greater accuracy, use the synchronization model to determine the correlation time of the satellite and the system time, in this case - time GPS system. The orbital model is used to calculate the location of the satellite at a given time. Both types of data required for satellite navigation.

Availability of supporting data can significantly affect the performance of the receiver positioning. In the GPS requires at least 18 seconds (the duration of the first three podkatov) in terms of the reception signal to the GPS receiver retrieves a copy of the navigation message from the signal broadcast by the GPS satellite. Therefore,if no adequate copy of the navigation model (obtained, for example, from a previous session), requires at least 18 seconds before the GPS satellite can be used to calculate the location. Currently, the receivers AGPS (Assisted GPS-GPS support) cellular networks such as global system for mobile communications GSM and universal mobile telecommunications system (Universal Mobile Telecommunications System, UMTS), sends to the receiver a copy of the navigation message and, therefore, the receiver is not required to extract data from a satellite radio, and he can get them directly from the cellular network. Time to the first location (Time To First Fix, TTFF) can be reduced to values less than 18 seconds. This reduction of time to first location may be crucial, for example, when positioning when an emergency call. It also improves the user experience in various usage scenarios, for example, when a user requests information about the services available in the vicinity of its current location. These types of services on the basis of the location information (Location Based Services, LBS) used in the query, the exact location of the user. Consequently, delays in positioning can result in a delay for the user when they receive a reply from the system LBS.

In addition, under adverse reception conditions when galow using supporting data may be the only option for navigation. This is due to the fact that the decrease of the signal power may make it impossible for GNSS receiver receiving a copy of the navigation message. However, when the navigation data is provided to the receiver from an external source (such as a cellular network), navigation is again possible. This can be important when working indoors and in urban areas, where the levels of the signals may be substantially altered as a result of the presence of buildings and other obstacles that weaken the signals from the satellite.

When a mobile terminal equipped with a supported receiver positioning, support requests data, the network sends the mobile terminal according to one of the navigation model for each of the satellites in the field of view supported receiver positioning. The format in which it sends the supporting data specified in various standards. Decisions of the control plane (Control Plane) include a Protocol hosting services radioresource (Radio Resource Location Services Protocol (RRLP) in the GSM system radio resource management Radio Resource Control, RRC) in the network W-CDMA and standards IS-801.1/IS-801.A on a CDMA network. Transmitted via radio information supporting data elements defined in the standard TS 44.035 for the GSM network. And finally, there are decisions plane (user Plane) OMA SUPL 1.0, Open Mobile Alliance, Secure User Plane for Location) and various proprietary solutions for CDMA networks. The factor common to these solutions is that they only support GPS system. However, the enlargement of the Galileo system all standards in the near future should be modified to ensure compatibility with Galileo.

In international publication WO 02/67462 reveal messages supporting GPS data in cellular communication networks and methods of transmission supports GPS data in cellular networks.

The navigation system index satellites to determine the related information. This is called indexing satellites. The index of the satellite is used to identify the navigation model-specific satellite. Each navigation system has its own way of indexing.

The GPS system indexes the satellite (space vehicle Space Vehicle, SV) on the basis of non-random sequences (Pseudo-Random Noise PRN). The PRN number can be identified using code extension D used by satellites.

The Galileo system uses a 7-bit field (1-128)to identify the satellite. The number can be determined using the PRN code used by the satellite.

The GLONASS system uses a 5-bit field to distinguish between the satellites. The number can be determined using the location of the SPU is nick in the plane of the orbit (this location is called "slot (slot)). In addition, unlike other systems, GLONASS uses multiple access frequency division Frequency Division Multiple Access, FDMA), to allocate broadcast satellites in the spectrum. It should also be noted the use of code extension CDMA system GLONASS. Therefore, there is a table in which are set the slot number for the satellite frequency radio. This mapping is required to include in any format supporting data.

The SBAS system, similar to GPS, uses the PRN numbers, but they are offset 120. Therefore, the first satellite of the SBAS system has a number of satellites is equal to 120.

Since the document QZSS SIS ICD is not published yet, no detailed information about the index of the satellites in this system. However, since the system uses GPS correction, a format that is compatible with the GPS system, will be with high probability is also compliant with the QZSS system.

Pseudo-satellites (LAAS Local Area Augmentation System) are the most problematic in terms of indexing. Currently there is no standard defined for the index of the pseudo-satellites. However, indexing should at least be approximated by indexing the GPS type, as they are used PRN numbers, similar to the GPS system. Therefore, by guaranteeing a sufficient range of indices with Letnikov there is the possibility of describing transmitters LAAS indexed GPS type.

In addition to these requirements (indexing, synchronization model and the orbital model) navigation model should contain information about the beginning of the countdown for the model {time tREFERENCEin the model synchronization, similar to the time stamp, required for orbital model), the period of validity of the model, the publication of data (in order to be able to distinguish between sets of data model), and the degree of health of the spacecraft (specifies whether the navigation data from the spacecraft).

The current field of the degree of health of the satellite needs to be modified as future GPS system (and other systems) don't transmit only one signal and various signals at different frequencies. In addition, it is possible that one of these signals is unusable, but the rest of the signals are excellent. Moreover, the parameter of the degree of health of the satellite must be able to have guidelines on this problem. The current solution in the GPS system only allows to establish the existence of a fault in some signal (without detection of the signal). The problem was previously solved only indication that the entire satellite is faulty, without a precise definition of the specific signal.

Summary of the invention

According to this invention instead of specifying the while what a satellite is faulty, provide a list of defective signals that are transmitted to a specific satellite. If damaged, the entire satellite, has a special significance for marking any signal that a particular satellite as defective. This approach can be used at least for GPS, Galileo, GLONASS, SBAS, LAAS and QZSS. There are also reservations for yet unknown future systems.

In accordance with the first aspect of the present invention proposes a device containing

- examining element adapted for research received support data relating to at least one navigation system

characterized in that the said examining element adapted for studies supporting data, to detect information related to the status of one or more signals of the reference stations of at least one of the navigation system, said information relating to the status of the aforementioned one or more signals of the reference stations contains an indication on the reference station the signal, and said status indicating the suitability of the signal-to-use, and the device is adapted so as not to use for positioning the signal that is specified as unsuitable for the use of the Finance.

In accordance with the second aspect of this invention features a network element containing

- managing element for the formation of supporting data related to one or more reference stations of at least one navigation system

characterized in that the network element also contains a

- investigating the item, adapted for the study of status referred to one or more signals of the reference stations of the navigation system to determine the suitability of the signal to the positioning device;

and a control element adapted to

- insert into the supporting data for each signal, which is defined investigating the item as unsuitable for the positioning device, indicate the unsuitability of the signal, these instructions contains information on the signal and on the reference station the signal.

In accordance with a third aspect of the present invention, a system containing

is the network element that contains the

- managing element for the formation of supporting data related to one or more reference stations of at least one navigation system; and

- transmitting element for supporting data transmission in the communication network;

- the device that contains the

receiver positioning the La performing positioning on the basis of one or more signals, transmitted reference stations mentioned at least one satellite navigation system;

receiver for receiving the aforementioned supporting data from the communication network; and

- investigating the item, adapted for the study adopted supporting data

characterized in that the network element also contains a

- investigating the item, adapted for the study received navigation data to detect information related to the status of the aforementioned one or more signals of the reference stations of the navigation system, said information relating to the status of the aforementioned one or more signals of the reference stations contains an indication on the reference station the signal, and said status indicating the suitability of the signal-to-use;

where the control element is adapted to

- insert into the supporting data for each signal, which is defined explores element as unusable when the positioning device, indicate the unsuitability of the signal, referred to the indication contains the information about the signal and on the reference station the signal;

and this mentioned exploring the device element adapted to examine the supporting data for detecting information relating to the status of the aforementioned one or more signals of the reference stations of the navigation system, the above information relating to the status of the aforementioned one or more signals of the reference stations contains an indication on the reference station the signal, and said status indicating the usability of the signal, where the device is adapted not to use when positioning the signal, which is indicated as unusable.

In accordance with the fourth aspect of the present invention proposes a module containing examining element adapted for research received support data relating to at least one satellite navigation system

characterized in that the said examining element adapted for studies supporting data, to detect information related to the status of one or more signals of the reference stations of at least one of the navigation system, said information relating to the status of the aforementioned one or more signals of the reference stations contains an indication on the reference station the signal, and said status indicating the usability of the signal, and the module also has an output for forming guidance on this signal, which is listed as unfit for use.

In accordance with the fifth aspect of this is subramania proposed method, including

- the formation of supporting data related to one or more reference stations of at least one navigation system

characterized in that the method also includes

- study of the status of one or more signals of the reference stations of at least one navigation system to determine the suitability of the signal to be used for the positioning device; and

- insert in the supporting data for each signal, which is defined in the study as unusable when the positioning device, indicate a deterioration of the signal-to-use, these instructions contains information on the signal and on the reference station the signal.

In accordance with the sixth aspect of the present invention proposes a method of using supporting data when the positioning device, the method contains

- reception of supporting data related to one or more reference stations of at least one navigation system

characterized in that the method also includes

the study received support data to detect information related to the status of the aforementioned one or more signals of the reference stations of the navigation system, said information relating to the status of the one mentioned is about or more signals of the reference stations, contains an indication on the reference station the signal, and said status indicating the suitability of the signal; and

the exclusion of such a signal, indicated as unusable, of the signals used in the positioning device.

In accordance with the seventh aspect of this invention features a computer program product for storing a computer program having executable computer instructions for

- the formation of supporting data related to one or more reference stations of at least one navigation system

wherein the computer program also includes executable computer instructions for

- study of the status of one or more signals of the reference stations of at least one navigation system to determine the suitability of a signal for use in positioning;

- insert into the supporting data for each signal, which is defined in the study as unusable when the positioning device, indicate a deterioration of the signal-to-use, these instructions contains information on the signal and on the reference station the signal.

In accordance with the eighth aspect of the present invention offers the I'm a computer software product for storing computer program having executable computer instructions for

reception supporting data related to one or more reference stations of at least one navigation system

wherein the computer program also includes executable computer instructions for

- research received support data to detect information related to the status of the aforementioned one or more signals of the reference stations of the navigation system, said information relating to the status of the aforementioned one or more signals of the reference stations contains an indication on the reference station the signal, and said status indicating the usability of the signal; and

exceptions to such a signal, indicated as unusable, of the signals used in the positioning device.

In accordance with the ninth aspect of the present invention proposes a signal for delivery to the supporting data in the device;

the signal contains

- supporting data related to one or more reference stations of at least one navigation system

characterized in that the signal also contains for each signal base station, unfit for the position, indicating the unsuitability of the signal using the indication from which contains information on the signal and on the reference station, belongs to the signal.

In accordance with the tenth aspect of the present invention is proposed medium having recorded thereon a signal for delivery supporting data on the device, the signal contains

- supporting data related to one or more reference stations of at least one navigation system

characterized in that the signal also contains for each signal base station, which is not suitable for positioning the indication of inability to use the signal for positioning the indication contains the information about the signal and on the reference station the signal.

In accordance with the eleventh aspect of this invention features the server supports data containing

- managing element for the formation of supporting data related to one or more reference stations of at least one navigation system;

characterized in that the server supports data also contains

- examining element adapted to study the status of one or more signals of the reference stations of the navigation system to determine the suitability of the signal to the positioning device,

in this, the control element adapted for insertion into the supporting data for each signal, which is researched and developed the store the item is identified as unsuitable for the positioning device, indicate the unsuitability of the signal-to-use, and referred to the indication contains the information about the signal and on the reference station the signal.

The invention provides several advantages compared with the prior art. In those cases, when the damage is limited to a particular signal, other signals transmitted by a particular satellite, are still applicable and therefore have more usable signals and, therefore, can be improved service availability (A-GNSS.

Description of the drawings

Below is a more detailed description of the invention with reference to the accompanying drawings,

which figure 1 shows a simplified diagram of the system, which can use the invention,

figure 2 presents in the form of a simplified block diagram of the reference receiver navigation system in accordance with an example embodiment of the present invention,

3 shows in a simplified block diagram of a network element in accordance with an example embodiment of the present invention,

4 shows in a simplified block diagram of a device in accordance with an example embodiment of the present invention,

figure 5 shows an example embodiment of the present invention; and

figure 6 shows an example of a structure of a frame used in the GPS system.

Detailed description is of the inventions

Figure 1 shows an example of system 1, which can be used for positioning of the device R. the System 1 includes a support station S, for example the satellites S1 of the first navigation systems such as GPS and the satellites S2 of the second navigation systems such as GLONASS. Here it should be noted that GPS and GLONASS are mentioned only as non-limiting examples and can also be used to anchor the station's different from satellites (e.g., pseudo-satellites system LAAS). In addition, using a larger number of reference stations than shown in figure 1. The navigation system contains one or more ground station G. the Ground station G controls the operation of the satellites S1, S2 navigation systems 2, 3, respectively. Ground station G may, for example, to determine deviations of the orbits of the satellites and the accuracy of the clocks of the satellites (not shown). If the ground station G detects the need for orbit correction or hours of the satellites S1, S2, it transmits a control signal (or signals) to the satellites S1, S2, which then performs the correcting operation based on the control signal(s). In other words, the ground station G refers to the ground segment of the navigation system.

In the process of its functioning satellites S1, S2 control the status of their equipment. The satellites S1, S2 can use the SQL, for example, the operation of the self-control to detect possible malfunctions in the equipment and submit the report. Errors and failures can be instant or longer. Based on the degree of serviceability of some of the faults can be corrected, or information submitted faulty satellite, can be completely ignored. Faulty satellites S1, S2 sets in the field of the degree of health of the satellite navigation message sign, indicating a malfunction of the satellite. Satellite S1, S2 can also be specified in the navigation message, the signal or signals that operate incorrectly. It is also possible that the ground station G may discover that a partner is not functioning correctly, and set the indication of the faulty signal(s) that satellite. This indication can then be transmitted in the navigation message in the communication network R.

In this non-limiting example embodiment, the communication network R is a GSM network, and the network element M that interacts with the reference receiver is a mobile service center location (Serving Mobile Location Centre (SMLC) of the GSM network. The reference receiver C.2 may send supporting data in the network element M Network supporting member retains data in memory M (3) for transmission to the device R, when is this device requires supporting data to perform the operations supported positioning. It is also possible to transmit supporting data from the network element M in the R before they will need. For example, the device R may request supporting data for all visible satellites and to store navigation data in the memory R.4 R for later use.

The network element M can also be the center SMLC GSM network. Center SMLC or is a separate network element (such as MSC) or an integrated set of functional capabilities of the base station controller base station (Base Station Controller BSC))that contains functionality required to support services based on location. Center SMLC manages the overall coordination and allocation of resources required to determine the location of the device R. It also calculates the final assessment of the location and calculates the achieved accuracy. Center SMLC can control the number of units of measurement location Measurement Unit (LMU) with the aim of obtaining measurements of mutual interference in determining the location or assistance in determining the location of the mobile stations in the zones served by them.

Now the main elements of the example embodiment of the reference receiver will be described in more detail using figure 2. The description applies to both the reference receiver With the first navigation the authorized system, and to a reference receiver With the second navigation system, although practical implementation may differ from each other. The reference receiver C.2 contains the controller C.1 to control its functioning. The controller C.1 contains, for example, a processor, microprocessor, digital signal processor (Digital Signal Processor, DSP), or a combination of these elements. Obviously, in the controller C.1 can be more than one processor, microprocessor, CPU, DSP, etc. There is also a block C.2 receiving, containing the receiver Is for receiving signals from the satellites S1, S2 navigation system. The reference receiver also includes a communication unit C.3 for the direct or indirect exchange of information by using the network element M communication network & communication Unit C.3 contains the transmitter C.3.1 for transmitting signals in a network element M and, if necessary, the receiver Is for receiving signals transmitted by the network element M in the reference receiver C. the Reference receiver may also include a memory 4 for storing data and software (computer code).

The structure of the example embodiment of the network element M is shown in figure 3. The network element M contains the controller M.1. The controller M.1 network element can be created on the basis of processor, microprocessor, DSP, or a combination of these elements. Obviously, in the controller M.1 who may be more than one processor, microprocessor, DSP, etc. Network element M can interact with the reference receiver via the first communication unit M2. The first communication unit M2 contains the receiver M for receiving signals from the reference receivers With the navigation system. The first communication unit M.2 may also contain a transmitter M for transmission, for example, request messages in the reference receiver With the navigation system. The network element M also includes a second communication unit C.3 to communicate with base stations or other access points of the communication network R. the Second communication unit M contains transmitter M for transmitting signals to the base station and the receiver M for receiving signals transmitted by base stations In the network element M Network element M also contains memory M for storing data and software (computer code).

The network element M receives maintenance data or radio satellites through the use of the reference receiver, or by some other external solutions, such as from a server supporting data X, designed to collect and transmit such information in a communication network. The server supports data X contains elements similar to the network element M in respect of transactions relating to the reception of navigational data, formation and transfer the e supporting data (i.e. the receiver M, the controller M.1, transmitter M and memory M). The server supports data X may also contain elements of the reference receiver C.2. The server supports data X is, for example, a server, a commercial service provider, which can be requested supporting data, it is possible for a fee.

The reference receiver is not necessarily a separate device placed outside the communication network P, but may be part of a network element M

In another example embodiment, the server supports data X can also analyze the signals received reference receiver (which may also be part of a server supporting data (X), and determine that it is operating properly, the signal to the satellite.

4 shows in a simplified block diagram of the device R in accordance with an example embodiment of the present invention. The device R contains one or more receivers positioning R.3 for receiving signals from the supporting stations 81, 82, one or more navigation systems. This can be a single receiver positioning R.3 for each navigation system, support for which is provided by the device R, or you can use a single receiver positioning R.3 for performing positioning on the basis of signals from more than one navigation system. The R also when holding the controller R.1 to control the operation of the device R. In addition, the controller R.1 network element can be created on the basis of processor, microprocessor, DSP, or a combination of these elements. Obviously, it can also be used more than one processor, microprocessor, CPU, DSP, etc. is Also possible that the receiver positioning R.3 may contain control R.3.1 (e.g., processor, microprocessor, and/or the processor D8P) or receiver positioning R.3 uses when positioning controller device R. it is also Possible that some of the operations of positioning performed a control element R.3.1 receiver positioning R.3, and some other operations of positioning performed by the controller R.1 device. The device R may communicate with the base station In the communication network R through the communication unit R.2. The communication unit R.2 contains the receiver R.2.2 to signals received from the base station In the communication network & communication Unit M2 also contains a transmitter R.2.1 for messages transmitted to the base station In the communication network R. the Data and the software may be stored in memory R.4 device. The R is also provided a user interface R.5 (UI), which contains, for example, the display R.5.1, keypad R.5.2 (and/or keyboard), and tools for recording and playback of sound R.5.3, such as a microphone and speaker who govorili. It is also possible that the device has more than one user interface.

The device R is, for example, mobile communication device, designed to exchange information with the communication network R in a known manner. The user interface R.5 can be common for mobile communication and receiver positioning R.3.

It will be shown below does not limit the invention to the example of the fields of the information element integrity in real time (Real-Time Integrity) with reference to table 1. Table 1 shows the corresponding number of bits. In accordance with this invention, it is assumed that the field Real-Time Integrity is used to transfer data on the degree of health of the companion device R.

Table 1
The number of bitsScale factorRangeUnitsInclusive.
The next field is included in every message
UTC3210-(232-1)cut the water M
The following field is available in each signal (time NBS)
Bad SSSJD141--

Field Real-Time Integrity information element supporting data (Assistance Data Information Element) of the GNSS system contains parameters that describe real-time status of the GNSS constellations. Originally designed for adifferential applications parameter integrity of the constellation of satellites in real time is of great importance, because there are no distinctive correction data by which the device R may determine defectless each satellite signal. Data integrity satellites in real time (Real-Time Satellite Integrity) notify the R about possible defects in the work of the satellite(s) - constellation GNSS systems in real time or nearly in real time. The network element M must pass the field Real Time Integrity, together with the current list of defective signals in any attempt positioning system (A-GNSS and whenever depart supporting data A-GNSS. If the number of faulty signals (Number of Bad Signals, NBS) is zero, the field of Real Time Integrity will be omitted. When information ELEH the UNT Extended Reference IE is included in the request message RRLP (Radio Resource Location Protocol) Measure Position Request or message RRLP Assistance Data, station MS will interpret the absence of a eld, Real Time Integrity in supporting data provided by the center SMLC as zero the number of faulty signals. If there is no Extended Reference, this interpretation applies when supporting data are provided by the network element M following up on the previous request R on the transfer of Real Time data Integrity.

Field UTC specifies the value of coordinated universal time (UTC), when the list was created.

The NBS value specifies the number of SSS ID, from which it follows that R should not use it at this time at the same location. The NBS value is determined from the list Bad_SSS ID.

Field Bad_SSS ID is used to specify the system, the index of the satellite SSS ID, parameters SV/Slot and the Signal ID for the satellite signal, which is not functioning correctly. Since the display contains information about the satellite system, the field Bad_SSS ID usually can be used to specify other positioning signals of other satellites and other satellite systems. This field SSS ID is a 14-bit field that is divided into 3 following subfields:

the first three bits form the System ID field that contains the ID number of the satellite system;

the next six bits form the field SV/Slot ID, which contains the index of the satellite in the system;

and the last five bits form the field ID Signal containing the ID signal is Ala positioning.

For the field SSS ID, use the following bit mask:

System ID (3 bits, range 0...7): xxx-----------

SV/Slot ID (6 bits, range 0...63): ---xxx-----

System ID (5 bits, range 0...31): ---------xxxxx

Parameter System ID specifies the satellite system belongs to the satellite and the signal. In the current version of this interface supports the following systems: GPS, Galileo and SBAS, GLONASS, QZSS and LAAS (pseudo-satellites). Table 2 shows the correspondence between the system and the System ID field value.

Table 2
System IDDesignation
GPS0
SBAS (e.g., WAAS, EGNOS)1
Galileo2
GLONAS3
QZSS4
LAAS5
Reserved for future use6
Reserved for future use7

Field SV ID is the index of the satellite in the satellite system is E. The parameter SV ID values range: 0-63. The range of values SV ID starts from 0 for each satellite system. The actual PRN number of the satellite can be obtained by adding a specific offset for satellite systems to the value of the SV ID. Offsets are defined in the following table 3.

Table 3
System IDThe offset parameter indexValue
GPSSV_BASE_GPS1
SBASSV_BASE_SBAS120
GalileoSV_BASE_GALILEO1
GLONASSSV_BASE_1
QZSSSV_BASE_QZSSTBD
LAASSV_BASE_LAASTBD

In the case of GLONASS option SV ID refers to the slot number of the orbit particular satellite.

However, it is also possible to use other implementations, other than those referred to above, Thu is to provide information, appropriate is not working correctly signals.

Field ID Signal indicates a signal of the positioning satellite from various signals generated by the satellite. The ANY value is used in the field ID Signal when a particular satellite is selected without giving any signal. This is necessary, for example, in the information element integrity in real time, when transmitted notification of damage the integrity of the satellite, and not information about the specific fault signal.

Table 4
The ID signalDesignation
Any0
GPS_L1_CA1
GPS_L2C (data)2
GPS_L2C (control signal)3
GPS_L5 (data)4
GPS_L5 (control signal)5
GALILEO_L1-C (data)6
GALILEO_L1-C (control signal)7
GALILEO_E5A (data) 8
GALILEO_E5A (control signal)9
GALILEO_E5B (data)10
GALILEO_E5B (control signal)11
GLONASS L112
L2C GLONASS13
Reserved for future use14-31

Message supporting data the navigation system also contains other fields and information elements in addition, element integrity in real time. However, they are not important from the point of view of the present invention and there is no need for more detailed consideration.

When you want to send a message supporting data the navigation system in a communication network, for example, from a network element M in R, the information is displayed in one or more messages used in the communication network. For example, in communication networks (GSM, there is a specific approach to the delivery of the message (Radio Resource Location Services Protocol (RRLP) to transmit information relating to the location. This approach is described in 3GPP TS 44.031, which defines the format supports GPS data used for exchange between the set the first element M and a device R. In this invention, this approach can be used to send a more General data about the degree of health in the device R.

In the network element M of available navigation information such as correction DGPS/DGNSS, ephemeris and correction of clock and calendar data is displayed in the corresponding fields of the message(s) supporting data. Ephemeris correction clock, calendar, and other data related to a specific satellite, receive the navigation message, the satellite or from an external service X. the Message is accepted reference receiver or a reference receiver in the external technician module X. a Message supporting data contains control cipher Control) to specify whether the information is encrypted, the item serial number encryption (Ciphering Serial Number) information element data Information Element). Information element data IE) moves the navigation information. This element is described below in table 5.

For example, a message supporting data (Assistance Data) is formed so that it corresponds to a message of fixed length, not necessarily occupying the entire message. It may contain three sets of data: correction DGPS/DGNSS, ephemeris and correction clock, calendar, and other information. In the case when the message is fixed length, the ima is t the number of information items less than the number of available bits in the remaining part of the message is placed bits of padding. Usually not permitted indefinite extra bits between the elements. In example embodiments, the channel for sending messages Assistance Data is, for example, channel SSN (Broadcast Control Channel broadcast control channel)on which the service is used SMSCB DRX (SMSCB, Short Message Service Cell Broadcast - broadcast short message service in a cell; DRX - discontinuous reception). One of the SMSCB message has a fixed length of data equal to 82 octets, and the maximum data length of Assistance Data network, GPS, 82 octets. The device R may identify the message LCS SMSCB using Message identifiers Identifier described in 3GPP TS 23.041.

1
Table 5
BitsResolutionRangeUnitsAppearanceAvailability
CipherCipher1---0-1---M
ControlOn/Off
Ciphering1---0-1---1M
Key Flag
Ciphering Serial Number16---0-65535---1
Data638----------M

Figure 5 shows an example of supportive messages in accordance with an example embodiment of the present invention. The message contains a field A.1 integrity in real time (Real-Time Integrity). This field A.1 Real-Time Integrity field contains A.1.1 time (UTC) and one or more fields A.2 Bad Signal Indication in accordance with the number of faulty signals, which must be communicated to the device R. Field A.2 Bad Signal Indication with whom holds information about the satellite, belongs to the defective signal (A.2.2), about the system that owns the satellite (a), as well as an indication of the defective signal (A.2.3). This example supports the message And does not explicitly specify the number of bad signals, but this value can be directly obtained from a number of fields A.2 Bad Signal Indication included in the message.

Below will be described an application example of the format supports messages in accordance with this invention. The network element has a storage area M in memory M for storing navigation data received from the reference receiver With. If there are no stored navigation data, for example, for the first satellites of the navigation system, the controller M.1 network element generates a request message (not shown) and transmits it to the first communication unit M.2 network element. The transmitter M performs, if necessary, Protocol conversion, message and transmits the message to the reference receiver With the first navigation system. The receiver S communication unit, the first reference receiver receives the message, performs, if necessary, Protocol conversion, and transmits the message to the controller C.1 reference receiver C. the Controller C.1 examines the message and determines that it is a request for transmission of the navigation data in the network element M If memory is .4 contains the requested navigation data, they can be transmitted to the network element M, if there is no need to update the navigation data before sending it.

After updating the navigation data controller C.1 reference receiver generates a message containing navigation data, and transmits it to the transmitter C.3.1 second communication unit, the first reference receiver C. the Controller C.1 also determines whether the satellites are functioning correctly. The controller C.1 explores the signals from such defective satellites in order to determine whether there are any useful signals, which can be taken from this satellite. For example, the controller C.1 can measure the forecast error of the pseudorange and, if the forecast error deviates from the calculated forecast errors by more than a predefined threshold value, the controller C.1 decides to improper functioning of the satellite. Another option is to compare the accuracy of the ephemeris data transmitted by the satellite, with the reference data. If the study indicates that there is at least one useful signal from the satellite, the controller C.1 forms an indication for each of the defective (i.e. damaged) signals that the satellite message supporting data. However, if the study indicates that the damaged are all signals de is planned satellite for this satellite can be formed a special value indication (="any" (any)). In this case, the communication supporting data there is only one field A.2 Bad Signal Indication related to this satellite.

After execution, if necessary Protocol conversions transmitter C.3.1 transmits navigation data in the network element M Receiver M network element receives the message, performs, if necessary, Protocol conversion, and transmits the message to the controller M.1 network element or stores the received navigation data directly in memory M network element. The memory may contain certain areas (M and M figure 3) for storing navigation data from navigation systems. Therefore, the data stored in the area reserved for the navigation system, from which the received navigation data.

Supporting data can be transferred to the device R or on request or by broadcast, for example, on the control channel of the communication network R. In the GSM system defined message format GPS Assistance Data Broadcast Message (broadcast data transmission supports GPS), which can be used in such broadcast programs for GPS. Supporting data included in the message format, is certain in this invention. For example, the controller M.1 network element M checks (M)whether there are any indications of defective signals, and, if the test indicates that there is at least one invalid signal, the controller M.1 forms the field A.1 Real-Time Integrity and inserts (M) in his field A.2 Bad Signal Indication for the defective signals/satellites. Then the controller M.1 creates a message supporting data field containing A.1 Real-Time Integrity, for transmission to the device R.

It should be noted that the definition of time in this format supports data differs from the currently used time in a GPS network. As noted earlier, for example, the GPS time is returned to the starting point each week. Under the new definition of time, it is not. In addition, the method for determining the time is irrelevant from the point of view of the present invention.

The controller can view the first navigation data the navigation system stored in the first storage area M to, when required, to form other messages supporting data for transmission to other navigation data.

When composing a message supporting data And it can be transmitted in the communication network. The controller M.1 transmits data in the storage area of the message supports data M second communication unit M network element Transmitter M second communication unit of the network element M performs the necessary operations for generating signals, bearing supporting data, and transmits signals to the communication network R.

The signals are then received by receiver R.2.2 block communication device R. the Receiver R.2.2 demodulates the data from the received signals and, for example, transmits data to the controller R.1 device R. the Controller R.1 stores the data in memory R.4 R and analyses supporting data (R.1.1). The study includes the definition of the fields A.2 Bad Signal Indication (R.1.2) (if they exist). As noted above, the device R may conclude that the number of faulty signals based on the number of fields A.2 Bad Signal Indication, is included in this message. Indication of faulty signals can be transmitted to the receiver positioning R.3, for example, through output line R.1.3 controller R.1. However, it is possible that the controller R.1 also used in the operations of positioning, when there is no need to transfer data (specifying the defective signals and/or the number of bad signals in the receiver positioning R.3, but the controller R.1 can use the data stored in the memory R.4.

Memory R.4 may include a storage area R.4.1 for storing navigation data received supporting data, and for storing indications of faulty signals. In some situations, the navigation data can be received from satellites by demodulation of the received signals from them.

To the GDS supports data extracted from the record(s) supporting data they can be stored in memory and used for positioning. For example, when the receiver positioning R.3 can only demodulate the signals of one or two satellites, the receiver positioning R.3 can use supporting data to perform positioning.

When the receiver positioning R.3 you must use navigation data from one or more satellites, it also verifies information related to the field of integrity in real-time to determine whether there are any signals from the satellites are functioning correctly and tries to use them instead of the other signals/companions.

The device R can perform positioning at certain intervals or when predetermined conditions. The predefined condition may include, for example, one or more of the following situations: the user initiates a call, for example, the emergency center; the user selects the operation of positioning in the device menu R; the R and the communication network R perform switching to another cell of the communication network R; network connection P sends a positioning request to the device R, and so on.

It is also possible that the communication network, such as network element M, queries the device R to perform positioning. The request may be sent when ispolzovaniem delivery mechanism of RRLP messages. The response can also be sent using the delivery mechanism of RRLP messages.

When positioning, the receiver positioning R.3 or controller R.1 device may determine whether a sufficient number of latest navigation data stored in the memory R.4. If some navigation data are outdated (i.e. they become obsolete with respect to a given time), or are missing any of the necessary navigational data, the device can generate and send the request message to the network of R, for example, to the base station, which forwards the request message to the network element M Network element M collects the requested navigation data and generates a response message. Then the response message is transmitted via the serving base station In the device R. the Receiver R.2.2 communication unit, R.2 device receives and demodulates the response message to extract the navigation data. The navigation data is stored, for example, in the storage area navigation data R.4.1 memory R.4.

It should be noted that the navigation support message contains various elements (namely, toe_MSB, interval matching, IOD, toc, tGD, toe, r0, r1), which are certainly important for the proper functioning of the mod is Lee navigation but they are not essential from the point of view of this invention. For example, the beginning of the countdown for the model can be specified in various ways (at a given time, toe_MSB, tocand tth), but the change does not affect the functionality of sending information about the degree of health of the spacecraft. Parameters that are not significant from the point of view of the present invention, are given only for completeness.

It should also be emphasized that the actual number of bits and the scale factors are subject to change in case of new specifications or modifications. Changing the number of bits and/or scaling factors does not change the essence of the invention. For example, adding permissions in the component of velocity will not be characterized by the invention. As another example, consider the parameter SS ID. Currently used standards in the method of indexing allows to distinguish only between the satellites of the GPS system. Offered now option SS ID contains information about the system and the satellite. These two values can be reflected in the same field, but this is not necessary (if the system is defined in some other field). Therefore, a simple modification of the fields also cannot change the essence of the invention.

Network connection R may be a wireless network, etc the water network or combination of networks. Above mentioned is not limiting the invention, examples of communication networks, but here we can also specify the WLAN and WiMax.

Operation the various elements of the system can be run mostly by software, i.e. the controllers of the elements operate on the basis of computer instructions. Undoubtedly, some operations or part of them may be hard-coded, that is implemented in hardware.

1. The device (R) for positioning, the containing element (R.1.1) for research received support data relating to at least one navigation system;
characterized in that said element (R.1.1) to study adapted for studies supporting data to detect information related to the status of one or more signals of the reference stations (S1, S2) of at least one of the navigation system, said information relating to the status of the aforementioned one or more signals of the reference stations (S1, S2)contains an indication on the reference station (S1, S2)belongs to the signal, and said status indicating the suitability of the signal for use with the device (R) is adapted so as not be used for positioning the signal, which is listed as unfit for use.

2. The device (R) according to claim 1, from causesa fact, that the above information relating to the status transmitted in the message field containing the Real-Time Integrity (Integrity Real-Time) (A.1)where the above-mentioned item (R.1.1) to study adapted for field research is Real-Time Integrity (A.1)to determine the number of signals that are indicated as unusable, and to identify the signals specified as unfit for use.

3. The device (R) according to claim 2, characterized in that the mentioned field Real-Time Integrity (A.1) contains one field Bad Signal Indication (Indication of Defective Signal) (A.2) for each unusable signal, and the above-mentioned item (R.1.1) for research includes defining element (R.1.2), adapted to check the number of fields Bad Signal Indication (A.2) in the Real-Time Integrity (A.1)to determine the number of signals referred to as unfit for use.

4. The device (R) according to claim 3, characterized in that the mentioned field Bad Signal Indication (A.2) contains an indication on the reference station (S1, S2)belongs to the signal.

5. The device (R) according to claim 4, characterized in that said indication on the reference station (S1, S2)to which the signal is assigned a predetermined value to indicate that all signals of one reference station (S1, S2) are unusable, in fact the field of Real-Time Integrity (A.1) contains only one who OLE Bad Signal Indication (A.2) for such reference station (S1, S2).

6. The device (R) for any p 5, characterized in that the said defining element (R.1.2) is adapted to determine that all the signals of the navigation system are suitable for use when the check indicates that no field Bad Signal Indication (A.2) in the Real-Time Integrity.

7. The device (R) according to any one of claims 1 to 5, characterized in that the receiver positioning is adapted to receive signals from at least two different navigation systems.

8. The device (R) according to any one of claims 1 to 5, characterized in that the information relating to the status of the aforementioned one or more signals of the reference stations (S1, S2) of the navigation system provides an indication to the navigation system, which includes supporting data, and the element (R.1.1) to study adapted to determine the above-mentioned indication of the navigation system.

9. The device (R) according to any one of claims 1 to 5, characterized in that it is a mobile device.

10. Network element (M) to generate supporting data containing control (M.1) to generate supporting data related to one or more reference stations (S1, S2) of at least one navigation system;
characterized in that the network element (M) also contains an element (M.1.1) to study the status upon is wrapped one or more signals of the reference stations (S1, S2) of the navigation system to determine the suitability of the signal to the positioning device (R);
and control (M.1) adapted for insertion into the supporting data for each signal, which is defined by the element (M.1.1) for research as unsuitable for the positioning device (R), indicate the unsuitability of the signal, these instructions contains information on the signal and on the reference station (S1, S2)belongs to the signal.

11. Network element (M) of claim 10, wherein the control element (M.1) adapted to generate a message containing the Real-Time Integrity (A.1)where the above-mentioned field of Real-Time Integrity (A.1) contains the above-mentioned indication of unsuitability for each signal element (M.1.1) for studies identified as unusable when the positioning device (R).

12. Network element (M) according to claim 11, characterized in that the control element (M.1) is adapted to form one field Bad Signal Indication (A.2) for each unusable signal in the above-mentioned field of Real-Time Integrity (A.1).

13. Network element (M) in item 12, characterized in that the control element (M.1) is adapted to include in the mentioned field Bad Signal Indication (A.2) the above-mentioned indication on the reference station (S1, S2)belongs to the signal.

14. Network element (M) in item 13, featuring the the action scene, that the control element (M.1) is adapted to assign a predetermined value of said indication on the reference station (S1, S2)belongs to the signal, to indicate that all signals of one reference station (S1, S2) are unusable, and form for such reference station (S1, S2) only one field Bad Signal Indication (A.2) in the mentioned field Real-Time Integrity (A.1).

15. Network element (M) according to any one of p-14, characterized in that the network element (M) also contains a receiver (M) for receiving the navigation data from at least one satellite navigation system.

16. Network element (M) according to any one of p-14, characterized in that it is the center of the mobile switching system GSM.

17. Network element (M) according to any one of p-14, characterized in that the said supporting data include at least one of the following systems:
global positioning system (Global Positioning System);
the GLONASS system;
the Galileo system;
the system of Quasi-Zenith Satellite System;
system adjustments based on satellites (Space Based Augmentation System); or
the system of local corrections (Local Area Augmentation System).

18. Network element (M) according to any one of p-14, characterized in that it is a network element of one of the following networks:
GSM network;
the UMTS communications network;
the CDMA communication network;
the communications network W-CDMA;
network connection WLAN;
with the th WiMax.

19. System for positioning, comprising: a network element (M)which contains the control element (M.1) to generate supporting data related to one or more reference stations (S1, S2) of at least one navigation system; and transmitting element (M) for supporting data transmission in a communication network (R); the device (R), which contains the receiver positioning (R.3) to perform positioning based on one or more signals of the reference stations (S1, S2) of at least one of the mentioned satellite navigation system receiver (R.2.2) for receiving the aforementioned supporting data from a communication network (R); and item (R.1.1) for research received support data;
characterized in that the network element (M) of the system also contains an element (M.1.1) to study the received navigation data to detect information related to the status of the aforementioned one or more signals of the reference stations (S1, S2) of the navigation system, said information relating to the status of the aforementioned one or more signals of the reference stations (S1, S2)contains an indication on the reference station (S1, S2)belongs to the signal, and said status indicating the usability of the signal-to-use;
and control (M.1) adapted for insertion into the supporting data for the each signal, which element (M.1.1) for studies identified as unusable when the positioning device (R), indicating the unsuitability of the signal-to-use, and referred to the instruction contains information about the signal and on the reference station (S1, S2)belongs to the alarm;
as mentioned element (R.1.1) to study in the device (R) is adapted for research supporting data, to detect information related to the status of the aforementioned one or more signals of the reference stations (S1, S2) of the navigation system where the above-mentioned information relating to the status of the aforementioned one or more signals of the reference stations (S1, S2)contains an indication on the reference station (S1, S2)belongs to the signal, and said status indicating the usability of the signal, and the device (R) is adapted so as not to use to positioning such a signal, which is listed as unfit for use.

20. The system according to claim 19, characterized in that it also comprises a receiver (M) for receiving signals of the reference stations (S1, S2) of at least one satellite navigation system.

21. The system according to claim 19 or 20, characterized in that it also comprises a receiver (M) for receiving the navigation data from at least one satellite navigation system with the server is supporting data (X).

22. Module (R.1) for device positioning, the containing element (R.1.1) for research received support data relating to at least one satellite navigation system;
characterized in that said element (R.1.1) adapted for studies supporting data to detect information related to the status of one or more signals of the reference stations (S1, S2) of at least one of the navigation system, said information relating to the status of the aforementioned one or more signals of the reference stations (S1, S2)contains an indication on the reference station (S1, S2)belongs to the signal, and said status indicating the usability of the signal, and the module also has an output (R.1.3) to form instructions this signal, which is listed as unfit for use.

23. The transfer method supporting data to the device (R), including: formation of supporting data related to one or more reference stations (S1, S2) of at least one navigation system;
characterized in that the method also includes the study of the status of one or more signals of the reference stations (S1, S2) of at least one navigation system to determine the suitability of the signal to be used for positioning of the device (R); and paste in support the maintenance data for each signal, which is defined in the study as unusable when the positioning device (R), indicate a deterioration of the signal-to-use, these instructions contains information on the signal and on the reference station the signal.

24. The way to use supporting data when the positioning device (R), including: formation of supporting data related to one or more reference stations (S1, S2) of at least one navigation system;
characterized in that the method also includes the study received support data to detect information related to the status of the aforementioned one or more signals of the reference stations (S1, S2) of the navigation system, said information relating to the status of the aforementioned one or more signals of the reference stations (S1, S2)contains an indication on the reference station (S1, S2)belongs to the signal, and said status indicating the usability of the signal; and an exception signal, which is listed as unfit for use, of the signals used for positioning (R).

25. Memory for storing a computer program having executable computer instructions for forming the supporting data related to one or Bo is her reference stations (S1, S2) at least one navigation system;
wherein the computer program also includes executable computer instructions for
study of the status of one or more signals of the reference stations (S1, S2) of at least one navigation system to determine the suitability of a signal for use in positioning the device (R);
insert into supporting data for each signal, which is defined in the study as unusable when the positioning device (R), indicate a deterioration of the signal-to-use, these instructions contains information on the signal and on the reference station the signal.

26. Memory for storing a computer program having executable computer instructions for receiving supporting data related to one or more reference stations (S1, S2) of at least one navigation system;
wherein the computer program also includes executable computer instructions for research received support data to detect information related to the status of the aforementioned one or more signals of the reference stations (S1, S2) of the navigation system, said information relating to the status of the aforementioned one or more signals of the reference stations (S1, S2), with whom holds indication on the reference station (S1, S2)belongs to the signal, and said status indicating the usability of the signal; and the exclusion of such a signal, which is listed as unfit for use, of the signals used for positioning of the device (R).

27. Read by the processor recording medium on which the recorded signal for delivery to the supporting data in the device (R), where the specified signal contains supporting data related to one or more reference stations (S1, S2) of at least one navigation system;
characterized in that the signal also contains, for each signal of the reference station (S1, S2), unsuitable for positioning the indication of the deterioration of signal-to-use, these instructions contains information on the signal and on the reference station (S1, S2)belongs to signal that the device implements the method of using supporting data when the positioning device

28. Server supporting data (X)containing a control element (M.1) to generate supporting data related to one or more reference stations (S1, S2) of at least one navigation system;
characterized in that the server supporting data (X) contains an element (M.1.2) to study the status of one or more signals of the reference stations (1, S2) of the navigation system to determine the suitability of the signal to the positioning device (R);
when this control element (M.1) adapted for insertion into the supporting data for each signal element (M.1.1) for studies identified as unsuitable for the positioning device (R), indicate a deterioration of the signal-to-use, and referred to the indication contains the information about the signal and on the reference station (S1, S2)belongs to the signal.

29. Server supporting data (X) p, characterized in that it also comprises a receiver (M) for receiving signals from base stations (S1, S2) of at least one satellite navigation system.



 

Same patents:

FIELD: physics, navigation.

SUBSTANCE: invention relates to method and device of satellite positioning. In compliance with this invention, multiple navigation satellites controlled by at least one ground control center, are located at medium-altitude orbits to transmit, via unidirectional communication lines and system of reference beacons, the data on time and location for separate satellite.

EFFECT: reduced interval between origination of departure from normal condition and user notification of said departure.

10 cl, 2 dwg

FIELD: measuring technology.

SUBSTANCE: invention refers to method and device for greater positional accuracy of a terminal with using of a measurement collection. The technical effect is ensured by obtaining an initial position estimation and correction thereof by means of measurements. The correction is enabled by deriving a measurement vector from the initial position estimation. Observation matrixes are formed for measurements. Weight factor matrixes are evaluated. The measurement vector provides a basis to derive a correction vector that is used to correct the initial position estimations.

EFFECT: higher accuracy of the initial position estimation for the wireless terminal.

30 cl, 13 dwg, 1 tbl

FIELD: radio engineering.

SUBSTANCE: invention is related to detection of ground position of aircraft and to device that comprises facilities for periodical distribution of position data, facilities for distribution of inertial data, facilities for detection of moving object position during each issue of position data, on this basis, and facilities for detection of moving object position between two serial issues of position data, besides time interval between two serial issues of data is divided into time intervals of equal duration, which are separated by intermediate moments of time, facility that identifies position of moving object for each current intermediate moment of time on the basis of position in previous intermediate moment of time and on the basis of its displacement in time interval limited by current and previous moments of time, displacement of which is calculated with the help of inertial data.

EFFECT: improved accuracy and speed of data update on ground position of aircraft.

14 cl, 1 dwg

FIELD: physics; navigation.

SUBSTANCE: invention relates to a system for determining location of an object. The proposed system can operate with any of the satellite radar system used in practice, such as GPS/GLONASS and next generation system GALLILEO. The proposed system consists of two independent parts: one system for emitting satellite signals inside a tunnel and one processor, hardware, software, or hardware and software, which are built into the basic satellite receiver used for determining location of an object.

EFFECT: processing information received from satellite signals relayed in a tunnel to determine location of an object, person, vehicle etc, inside the tunnel.

12 cl, 4 dwg

FIELD: information technologies.

SUBSTANCE: geometric filter is applied to set of GNSS signal data with application of geometric combination of carrier phases to obtain array of ambiguity assessments for geometric combination of carrier phases and according statistical information. Bank of ionospheric filters is applied to set of GNSS signal data with application of ionospheric combination of carrier phases, which does not depend on geometry, for obtain array of ambiguity assessments for ionospheric combination of carrier phases and according statistical information. Bank of quintessence filters is applied to set of GNSS signal data with application of carrier phase combination that does not depend on geometry and does not depend on ionosphere to obtain array of ambiguity assessments for combination of carrier phases, which does not depend on geometry and does not depend on ionosphere, and according statistical information. Code filter is applied to set of GNSS signal data with application of carrier code combination aggregate, which does not depend on geometry and does not depend on ionosphere. Obtained arrays are combined to produce combined array of ambiguity assessments for all observations of phase.

EFFECT: increased speed and reliability of ambiguity resolution.

47 cl, 40 dwg

FIELD: radio engineering.

SUBSTANCE: invention relates to radio engineering and can be used for locating whatever object on the Earth surface and in navigation. Proposed system comprises the 1st, 2nd and 3rd reference points (A, B, C), immobile relative to the Earth, spaced apart and not located on one line. Space platform (S) is visible from aforesaid points. At least, one object (P) stays above or on the Earth surface. Transmitter (1) operates in an on-line mode with one of the nodes selected by aforesaid fixed reference points (A, B, C) and space platform (S) to emit pulses at preset frequency, each pulse being emitted at preset, certain time interval. Receiver (2) maintains on-line communication with each aforesaid fixed reference points, object (P) and transmitter (1) to receive aforesaid pulses on the trajectory between platform (S) and points (A, B, C) communicating with receiver (2). Control unit (3) features on-line communication with transmitter (1) and receiver (2) intended for computing side faces of tetrahedron, for each pulse, the apices of which are defined by points (A, B, C) and platform (S). Time during which each pulse runs along aforesaid trajectory between platform (S) and every point (A, B, C) allows defining the continuation of trajectory of mentioned platform (S), when it stays visible for fixed reference points (A, B, C), and the equation of its flight. Both provide for possibility of computing probable locations of object (P) by both control unit (3) and object (P) proper.

EFFECT: exact and comprehensive trajectory determination.

32 cl, 4 dwg

FIELD: radio engineering.

SUBSTANCE: invention relates to radio communication hardware and can be used in wireless systems designed to use data array for facilitating selected signal detection. Data can be retrieved from previous data via estimation of changes observed in such parametres, as time and location, which endanger validity. In some cases, data can be corrected to suits parametre variations. Corrected data can be calculated by receiver with the help of incomplete measurements of signal sets, particularly if data intended for facilitating signal detection from remote source incorporate parameters notably different from those usually supplied. New data shall not be obligatorily received until validity of previous data expires due to constraints to time interpolation via Doppler coefficients, is mobile station displacement is not identified.

EFFECT: reduced data processing and exchange load in receivers.

38 cl, 4 dwg

FIELD: communication devices.

SUBSTANCE: invention relates to positioning systems and can be used for resolving floating point ambiguity of a carrier wave. The invention uses known position of a user receiver, which was not moved, or kinematic mode in real time systems for initialising floating point ambiguity values in a wide area differential global positioning system when the user receiver moves. After that carrier phase measurements corrected for refraction, obtained at the user receiver of the global positioning system, are corrected by including corresponding initial floating point ambiguity values, and floating point ambiguity values are considered known (small deviation) in subsequent processes for positioning the user receiver in the wide area differential global positioning system.

EFFECT: more accurate positioning in real time.

22 cl 6 dwg

FIELD: communication devices.

SUBSTANCE: invention relates to a system for positioning in kinematic mode in real time using pseudolites. The location of pseudolites and location of a stationary base station are known in advance by a user processor, and the codes and phases of carrier signals, transmitted from the pseudolites are measured by the stationary base station, mobile base station and mobile receiver. Data of codes and phases of carrier signals, measured by the stationary base station, mobile base station and mobile receiver, are transmitted to the user processor using a data transmission line. The user processor defines the baseline between the stationary base station and the mobile base station, as well as the baseline between the mobile base station and the mobile receiver. The two baselines and the location of the stationary base station known in advance are used to determine position of the mobile receiver.

EFFECT: more accurate positioning.

40 cl, 3 dwg

FIELD: physics; communication.

SUBSTANCE: wireless communication device, known as a mobile station (MS), contains a standard wireless communication system, as well as a communication subsystem of a wireless computer network and can also include positioning using global positioning system (GPS). An MS operator can use any or all of these systems to determine the current location of the MS. MS are provided with location based services, based on their current location, such as sales information, schedules, prices, maps etc. In a typical application several points for accessing a computer network, or radio beacons, are distributed on the whole geographical area and are used to determine location of an MS with significantly high degree of accuracy. Based on the current location of an MS radio beacons can provide location based services.

EFFECT: more accurate determination of location of a mobile communication device.

45 cl, 7 dwg

FIELD: physics.

SUBSTANCE: network element (M) for generating backup data has a control element (M.1) for generating back up data relating to one or more base stations (S1, S2) of at least one navigation system, and a transmitting element (M.3.1) for transmitting back up data over a communication network (P) to a device (R). The positioning device (R) has a positioning receiver (R3) for positioning based on one or more signals transmitted by base stations (S1, S2) over at least one of the said satellite navigation systems; a receiver (R.2.2) for receiving back up data relating to at least one navigation system from the network element (M); and an analysis element (R.1.1) adapted for analysing the received back up data in order to detect information relating to the status of the said one or more signals from the base stations (S1, S2) of the navigation system. The said information relating to the status of the said one or more signals from the base stations (S1, S2) contain indicators to the base station (S1, S2) to which the signal relates, and the said status, which indicates suitability of the signal for using. The device (R) is adapted such that, the signal indicated as unsuitable for use is not used for positioning.

EFFECT: increased accuracy of determining location by providing the positioning device with a list of defective signals transmitted by a specific satellite.

29 cl, 6 dwg, 5 tbl

FIELD: radio engineering.

SUBSTANCE: there determined is location of reference station in reference station according to signals received in it from complex of satellites, there determined is location of user receiver where user is located on the basis of measurement results received in it and on the basis of modification values calculated in reference station for correction of errors and there calculated is vector of relative position by calculating difference between location of reference station and location of the user.

EFFECT: improving determination accuracy of object location.

19 cl, 9 dwg

FIELD: physics.

SUBSTANCE: proposed method comprises reception of radio signals, analysis of output data of a group of receivers in combination with the data of weather pickups, and generation of navigation data quality signals and corrections to said data for its consumers.

EFFECT: higher probability of detecting intolerable abnormality of navigation satellite signals coming from all operated navigation systems GLONASS, GPS and GALILEO.

2 cl, 1 dwg

FIELD: physics.

SUBSTANCE: navigation system calculates positions which are corrected using complementary filters, each of which excludes data coming from one of the satellites when a fault is detected in one of the satellites. The complementary filter which excludes this satellite becomes the main filter and the other complementary filters are initiated by the new main filter.

EFFECT: reduced computational load in the navigation system.

5 cl, 2 dwg

FIELD: physics.

SUBSTANCE: to receive a radio-navigation signal modulated by a signal containing a BOC (n1,m) component and a BOC (n2,m) component, correlation between the current signal at the reception point and the modulating signal, and correlation between the shifted signal at the reception point and the modulating signal is carried out in a time interval with duration T. The current signal at the reception point is generated in form of a binary signal containing one segment of the BOC (n2,m) signal with overall duration (1-αA)T during the said time interval. The shifted signal at the reception point is generated in form of a binary signal containing one segment of the BOC (n1,m) signal with overall duration αBT during the said time interval.

EFFECT: high accuracy of synchronising a received signal with a reference signal.

13 cl, 9 dwg

FIELD: information technology.

SUBSTANCE: mobile communication device uses a position finding method using a position finding filter, for example a Kalman filter which is initialised by measurements from reference stations, for example satellites and/or base stations, which can be obtained during different periods. Accordingly, the position finding filter can be used to evaluate the position without the need to first obtain at least three different signals during the same measurement period.

EFFECT: high efficiency and reliability of position finding for mobile receivers of a global positioning system in unfavourable signal propagation conditions when coincidence of range measurements may not occur on time.

40 cl, 9 dwg

FIELD: information technology.

SUBSTANCE: request for auxiliary data issued by a mobile station is received at a server station and in response to the request, the server station sends to the server station ephemeral data as part of auxiliary data. After receiving the request for auxiliary data issued by the mobile station, the server station decides on the possibility of the mobile station reaching given accuracy for determining location is provided with transmitted ephemeral data. In the affirmative case, the server station sends transmitted ephemeral data to the mobile station. In the negative case, the server station sends to the mobile station long-term ephemeral data instead of transmitted ephemeral data as part of the requested auxiliary data. The long-term ephemeral data are extracted from forecasts of orbit satellites and they have validity interval which is sufficiently long compared to the ephemeral data transmitted by satellites.

EFFECT: high accuracy of position finding.

8 cl, 3 dwg

FIELD: physics.

SUBSTANCE: device includes a GPS/GLONASS receiver, an antenna, a user interface (keyboard, display, sound), a communication interface, nonvolatile memory, a microcontroller, consisting of a unit for calculating the coordinate vector from code measurements, a unit for calculating the increment of the coordinate vector from phase measurements, a filter unit based on a least-square method, a unit for calculating a specified coordinate vector from the filtration results, a unit for working with interfaces, where the microcontroller includes a unit for analysing stability of the phase solution, a unit for evaluating duration of measurements and geometrical factor of the constellation of satellites, as well as a correcting unit consisting of a counter for counting stable solutions and a decision unit for deciding on continuing measurements, interfaces for time marking external events and outputting the second mark.

EFFECT: highly accurate determination of coordinates of a receiver based on differential processing of phase measurements with complete elimination of phase ambiguity.

1 dwg

FIELD: physics.

SUBSTANCE: device includes a GPS/GLONASS receiver, an antenna, a user interface (keyboard, display, sound), a communication interface, nonvolatile memory, a microcontroller, consisting of a unit for calculating the coordinate vector from code measurements, a unit for calculating the increment of the coordinate vector from phase measurements, a filter unit based on a least-square method, a unit for calculating a specified coordinate vector from the filtration results, a unit for working with interfaces, where the microcontroller includes a unit for analysing stability of the phase solution, a unit for evaluating duration of measurements and geometrical factor of the constellation of satellites, as well as a correcting unit consisting of a counter for counting stable solutions and a decision unit for deciding on continuing measurements, interfaces for time marking external events and outputting the second mark.

EFFECT: highly accurate determination of coordinates of a receiver based on differential processing of phase measurements with complete elimination of phase ambiguity.

1 dwg

FIELD: physics.

SUBSTANCE: navigation is performed using low earth orbit (LEO) satellite signals, as well as signals from two sources of ranging signals for determining associated calibration information, where a position is calculated using a navigation signal, a first and a second ranging signal and calibration information. Also possible is providing a plurality of transmission channels on a plurality of transmission time intervals using pseudorandom noise (PRN) and merging communication channels and navigation channels into a LEO signal. The method also involves broadcasting a LEO signal from a LEO satellite. Also disclosed is a LEO satellite data uplink. The invention also discloses various approaches to localised jamming of navigation signals.

EFFECT: high efficiency and ensuring navigation with high level of integration and security.

14 cl, 34 dwg

FIELD: the invention refers to radio technique means of determination of a direction, location, measuring of distance and speed with using of spaced antennas and measuring of a phase shift or time lag of taking from them signals.

SUBSTANCE: the proposed mode of determination of coordinates of an unknown transmitter is based on the transmitter's emitting of a tracing signal to the satellite, on receiving of signals of an unknown transmitter and legimite transmitters which coordinates are known, on forming a file of clusters, on selection of the best clusters out of which virtual bases are formed for calculating coordinates of legimite and unknown transmitters according to the coordinates of legimite transmitters and the results of calculation of their coordinates one can calculate mistakes of measuring which are taken into account at calculating the coordinates of the unknown transmitter.

EFFECT: increases accuracy of determination of coordinates of an unknown transmitter in the system of a satellite communication with a relay station on a geostationary satellite.

2 dwg, 1 tbl

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