Description:TECHNICAL FIELD
[0001] The present disclosure relates, in general, to satellite systems, and more specifically, relates to a system and method for transmitting reliable IRNSS dual-band receiver parameters over the network.

BACKGROUND
[0002] Indian Regional Navigation Satellite System (IRNSS) is an independent, indigenously developed satellite navigation system developed by India. It is mainly designed to provide positional information services not only in India but also to the region extending up to 1500km from its boundary, which is its primary service area unlike GPS providing services for the entire Global. IRNSS may provide two types of services i.e., standard positioning services (SPS) for all users, and restricted services (RS) an encrypted service for particular users.
[0003] IRNSS operates in two bands L5 (1164.45 MHz to 1188.45 MHz with 24 MHz bandwidth) and S-band (2483.778 MHz to 2500.278 MHz with 16.5 MHz bandwidth). IRNSS constellation consists of 7 satellites out of which 3 are in geostationary earth orbit and 4 in geosynchronous orbit. All the satellites may be continuously visible in the Indian region for 24 hours a day. The IRNSS is expected to provide position accuracy of less than 20 meters over India and a region extending outside the land mass to about 1,500 kilometers. The system provides two types of SPS and RS. Both services may be provided at two frequencies, one in the L5 band and the other in the S band.
[0004] An example of such satellite system is recited in a Patent US007366522B2 titled “Method and System for Location Tracking” which describes techniques for location tracking, location utilization, and dissemination and management of location information are disclosed. A location monitoring system includes at least a plurality of mobile computing devices supported by a wireless network and a web server to the wireless network. Another example is recited in a patent CN203616481U -2014-05-28 titled “GPS Ethernet interface data demultiplexer” which describes GPS Ethernet interface data de-multiplexer, that has a GPS antenna, a GPS module and a GPS data processing module connected to the GPS module. Another example is recited in a patent CN203587804U 2014-05-07 titled “GPS serial interface and Ethernet interface data de-multiplexer” that describes the GPS module decodes the received GPS radiofrequency signal and outputs decoded information; the GPS data processing module compiles and packages the decoded information according to requirement, and outputs the information to the multi-serial port expansion module, the GPS data processing module employs the Ethernet interface to carry out real time data exchange with external terminal equipment.
[0005] Yet another example is recited in a patent CN203616480U 2014-05-28 titled “GPS radiofrequency signal and serial interface data demultiplexer” that describes the GPS antenna to receive a GPS radiofrequency signal; the GPS radiofrequency signal shunt module inputs and outputs the received GPS radiofrequency signal to a plurality of radio frequency interfaces.
[0006] It is desired to overcome the drawbacks, shortcomings, and limitations associated with existing solutions, and develop a means providing IRNSS spatial and temporal information that is sent to multiple consumers at all times over IP network.

OBJECTS OF THE PRESENT DISCLOSURE
[0007] An object of the present disclosure relates, in general, to the satellite system, and more specifically, relates to a system and method for transmitting reliable IRNSS dual-band receiver parameters over the network.
[0008] Another object of the present disclosure is to provide a system that reduces the complexity of the system by keeping redundant IRNSS receivers that makes the system cost-effective.
[0009] Another object of the present disclosure is to provide a system that transmits the IRNSS spatial and temporal information to multiple consumers at all times over an IP network.
[0010] Yet another object of the present disclosure is to provide a redundant IRNSS system to ensure the IRNSS service availability.

SUMMARY
[0011] The present disclosure relates in general, to the satellite system, and more specifically, relates to a system and method for transmitting reliable IRNSS dual-band receiver parameters over the network. The main objective of the present disclosure is to overcome the drawback, limitations, and shortcomings of the existing system and solution, by providing a system and method that transmits IRNSS dual band receiver information such as Almanac and Ephemeris along with its positional, velocity and timing information data over the network.
[0012] The present disclosure provides a system for transmitting reliable IRNSS dual-band receiver parameters over the network. The system includes a pair of antennas adapted to receive a set of IRNSS radio frequency signals. The set of IRNSS radio frequency signals is the dual-band frequencies of the L5 and S bands. A pair of receivers coupled to the pair of antennas, the pair of receivers receives the set of IRNSS radio frequency signals from the pair of antennas. The pair of receivers receive either an L5 radio signal or S-band radio signal or both (L5 & S) from the pair of antennas. A processor operatively coupled to the pair of receivers, the processor is configured to process the received set of IRNSS radio frequency signal and outputs the IRNSS raw parameters that contain spatial and temporal information. The spatial and temporal information selected from satellite ephemeris parameters, almanac parameters, satellite position, satellite clock correction parameters, total group delay, user range accuracy, status messages, user position, velocity, time and other secondary information, ionospheric delay corrections and earth orientation parameters.
[0013] Further, the plurality of consumer systems coupled to the pair of receivers through a network, the plurality of consumer systems receives the IRNSS raw parameters that contain spatial and temporal information over the network at the periodic interval and on-demand requests, wherein the plurality of consumer systems perform post-processing of received IRNSS raw parameters facilitating IRNSS services to the consumers. The mutually agreed interface control protocol is established between the processor and the plurality of consumer systems.
[0014] Moreover, the plurality of consumer systems, upon an unstable state of any of the pair of receivers, is connected to the available receivers to ensure continuous IRNSS services to consumers. The IRNSS raw parameters are transmitted to other plurality of consumers over serial/universal serial bus (USB)/radio interfaces. Besides, incorporating IRNSS dual band redundant receiver system may ensure the IRNSS service availability at all times with less number of IRNSS receivers for operation thereby reducing the cost.
[0015] Various objects, features, aspects, and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.

BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The following drawings form part of the present specification and are included to further illustrate aspects of the present disclosure. The disclosure may be better understood by reference to the drawings in combination with the detailed description of the specific embodiments presented herein.
[0017] FIG. 1 illustrates an exemplary view of the system for transmitting reliable IRNSS dual band receiver parameter over network, in accordance with an embodiment of the present disclosure.
[0018] FIG. 2 illustrates an exemplary flow chart of the method for transmitting reliable IRNSS dual band receiver parameter over network, in accordance with an embodiment of the present disclosure.

DETAILED DESCRIPTION
[0019] The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. If the specification states a component or feature “may”, “can”, “could”, or “might” be included or have a characteristic, that particular component or feature is not required to be included or have the characteristic.
[0020] As used in the description herein and throughout the claims that follow, the meaning of “a,” “an,” and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.
[0021] The present disclosure relates, in general, to the satellite system, and more specifically, relates to a system and method for transmitting reliable IRNSS dual-band receiver parameters over the network. The present disclosure relates to a method and system that describe the transmission of IRNSS dual-band (L5 + S) receiver information such as Almanac and Ephemeris along with its positional, velocity and timing information data over the network. The system consists of IRNSS dual-frequency (L5 and S-Band) receiver, IRNSS dual-frequency antenna and a processing system. The IRNSS dual frequency antenna is used to receive the IRNSS radio frequency signals. The dual-band IRNSS receiver is used to decode the IRNSS radio frequency signal and provide the processed raw measurements along with spatial and temporal information. The processing system of the IRNSS receiver transmits the processed IRNSS raw measurements along with spatial and temporal information over the IP network. The system transmits the IRNSS data over the IP network at periodic interval and on-demand requests. A mutually agreed interface control protocol established between the processing system and the consumer to transmit the IRNSS raw measurements. The consumer systems may do the post-processing of received IRNSS receiver parameters. The present disclosure can be described in enabling detail in the following examples, which may represent more than one embodiment of the present disclosure.
[0022] The present disclosure provides the system for transmitting reliable IRNSS dual-band receiver parameters over the network. The system includes a pair of antennas adapted to receive a set of IRNSS radio frequency signals. The set of IRNSS radio frequency signals is the dual-band frequencies of L5 and S band. A pair of receivers coupled to the pair of antennas, the pair of receivers receives the set of IRNSS radio frequency signals from the pair of antennas. The pair of receivers receive either L5 radio signal or S-band radio signal or both (L5 & S) from the pair of antennas. A processor operatively coupled to the pair of receivers, the processor is configured to process the received set of IRNSS radio frequency signal and outputs the IRNSS raw parameters that contain spatial and temporal information. The spatial and temporal information selected from satellite ephemeris parameters, almanac parameters, satellite position, satellite clock correction parameters, total group delay, user range accuracy, status messages, user position, velocity, time and other secondary information, ionospheric delay corrections and earth orientation parameters.
[0023] Further, the plurality of consumer systems coupled to the pair of receivers through a network, the plurality of consumer systems receives the IRNSS raw parameters that contain spatial and temporal information over the network at the periodic interval and on-demand requests, wherein the plurality of consumer systems perform post-processing of received IRNSS raw parameters facilitating IRNSS services to the consumers. The mutually agreed interface control protocol is established between the processor and the plurality of consumer systems.
[0024] Moreover, the plurality of consumer systems, upon an unstable state of any of the pair of receivers, is connected to the available receivers to ensure continuous IRNSS services to consumers. The IRNSS raw parameters are transmitted to other plurality of consumers over Serial/USB/radio interfaces. Besides, incorporating IRNSS dual band redundant receiver system may ensure the IRNSS service availability at all times with less number of IRNSS receivers for operation thereby reducing the cost.
[0025] The advantages achieved by the system of the present disclosure can be clear from the embodiments provided herein. A redundant IRNSS system that may be used to ensure the IRNSS service availability. Incorporating IRNSS dual band redundant receiver system may ensure the IRNSS service availability at all times with less number of IRNSS receivers for operation thereby reducing the cost. The description of terms and features related to the present disclosure shall be clear from the embodiments that are illustrated and described; however, the invention is not limited to these embodiments only. Numerous modifications, changes, variations, substitutions, and equivalents of the embodiments are possible within the scope of the present disclosure. Additionally, the invention can include other embodiments that are within the scope of the claims but are not described in detail with respect to the following description.
[0026] FIG. 1 illustrates an exemplary view of the system for transmitting reliable IRNSS dual-band receiver parameters over the network, in accordance with an embodiment of the present disclosure.
[0027] Referring to FIG. 1, system 100 for transmitting reliable IRNSS dual band receiver parameters over the network is disclosed. The system 100 can include a pair of antennas (102-1, 102-2 (which are collectively referred to as a pair of antennas 102, herein)), a pair of receiver system (104-1, 104-2 (which are collectively referred to as a pair of receivers 104, herein)), IP network 106, a plurality of consumer system (108-1 to 108-N (which are collectively referred to as consumer system 108, herein)) and a processor 110.
[0028] The pair of antennas 102 coupled to the pair of receivers 104 and adapted to receive a set of IRNSS radio frequency signals, where the IRNSS radio frequency signals are the dual-band frequencies of L5 and S-band. The receiver system 104 can receive the set of IRNSS radio frequency signals. In an exemplary embodiment, the receiver system 104 can be dual-band IRNSS receiver that can receive either L5 radio signal or S-band radio signal or both (L5 & S) from the antenna 102. The IRNSS receiver 104 can include a processing system (also referred to as processor 110), that process the received set of IRNSS radio frequency signal (also referred to as IRNSS radio signal) and outputs the IRNSS raw parameters that contain spatial and temporal information.
[0029] After baseband processing in the receiver system 104, the output is raw data known as spatial and temporal information. The spatial and temporal information selected from satellite ephemeris parameters, almanac parameters, satellite position, satellite clock correction parameters, total group delay, user range accuracy, status messages, user position, velocity, time and other secondary information, ionospheric delay corrections and earth orientation parameters. In an exemplary embodiment, the receiver system 104 as shown in the example can include two IRNSS dual band receivers and two IRNSS dual frequency antenna and multiple consumer systems.
[0030] The plurality of IRNSS consumer systems 108 is connected to the IRNSS receiver system 104 via IP network 106. The processor 110 of the receiver system transmits the IRNSS raw parameters that contain spatial and temporal information to the consumer systems 108 over the IP network at the periodic interval and on-demand requests. The requested data is sent over IP network 106. The receiver system 104 sends the spatial and temporal information (also referred to as IRNSS data) over the link at the periodic interval and on-demand requests to the consumer system 108 through the IP network 106. Mutually agreed interface control protocol established between the processing system and the consumer.
[0031] The consumer system 108 may do the post-processing of received IRNSS raw parameters that contain spatial and temporal information. IRNSS raw parameters may be transmitted to other consumers over Serial/USB/radio interfaces. To ensure the availability of IRNSS services at all times, redundant IRNSS receivers are used. IRNSS consumer system 108 may first be connected to the first IRNSS receiver system 104-1. If under any circumstances, the first receiver system is not available, then within 3msec the consumer system 108 may be connected to other IRNSS receiver system 104-2 via IP network 106 and performs same functionalities.
[0032] For example, as shown in FIG.1, there are two IRNSS dual band receiver systems 102, if the first receiver system 104-1 is not available, the IP network 106 still has IRNSS raw parameters from the second receiver system, thereby ensuring continuous data available to consumers. The whole idea is to reduce the number of receiver systems, antenna’s so that overall cost can be reduced. From the IP network 106, based demand request protocol, consumers can obtain the required information.
[0033] Thus, the present invention overcomes the drawbacks, shortcomings, and limitations associated with existing solutions, and provides a system that reduces the complexity of the system by keeping redundant IRNSS receivers that makes the system cost-effective. The system transmits the IRNSS spatial and temporal information to multiple consumers at all times over the IP network and provides a redundant IRNSS system to ensure the IRNSS service availability.
[0034] FIG. 2 illustrates an exemplary flow chart of the method for transmitting reliable IRNSS dual-band receiver parameters over the network, in accordance with an embodiment of the present disclosure.
[0035] Referring to FIG. 2, method 200 includes at block 202, the pair of antennas adapted to receive a set of IRNSS radio frequency signals. At block 204, the pair of receivers coupled to the pair of antennas, the pair of receivers receives the set of IRNSS radio frequency signals from the pair of antennas. At block 206, the processor operatively coupled to the pair of receivers, the processor configured to process the received set of IRNSS radio frequency signal and outputs the IRNSS raw parameters that contain spatial and temporal information.
[0036] At block 210, the plurality of consumer systems coupled to the pair of receivers through a network, the plurality of consumer systems receives the IRNSS raw parameters that contain spatial and temporal information over the network at the periodic interval and on-demand requests, wherein the plurality of consumer systems perform post-processing of the received IRNSS raw parameters facilitating IRNSS services to the consumers.
[0037] It will be apparent to those skilled in the art that the system 100 of the disclosure may be provided using some or all of the mentioned features and components without departing from the scope of the present disclosure. While various embodiments of the present disclosure have been illustrated and described herein, it will be clear that the disclosure is not limited to these embodiments only. Numerous modifications, changes, variations, substitutions, and equivalents will be apparent to those skilled in the art, without departing from the spirit and scope of the disclosure, as described in the claims.

ADVANTAGES OF THE PRESENT INVENTION
[0038] The present invention provides a system that reduces the complexity of the system by keeping redundant IRNSS receivers that makes the system cost-effective.
[0039] The present invention provides a system that transmits the IRNSS spatial and temporal information to multiple consumers at all times over IP network.
[0040] The present invention provides a redundant IRNSS system to ensure IRNSS service availability.
 
, Claims:1. A system (100) for transmitting reliable Indian regional navigation satellite system (IRNSS) dual band receiver parameters over the network, the system comprising:
a pair of antennas (102) adapted to receive a set of IRNSS radio frequency signals;
a pair of receivers (104) coupled to the pair of antennas, the pair of receivers receives the set of IRNSS radio frequency signals from the pair of antennas;
a processor (110) operatively coupled to the pair of receivers, the processor configured to process the received set of IRNSS radio frequency signal and outputs the IRNSS raw parameters that contain spatial and temporal information;
a plurality of consumer systems (108) coupled to the pair of receivers through a network, the plurality of consumer systems receives the IRNSS raw parameters that contain spatial and temporal information over the network at the periodic interval and on-demand requests, wherein the plurality of consumer systems perform post-processing of received IRNSS raw parameters facilitating IRNSS services to the consumers.

2. The system as claimed in claim 1, wherein the set of IRNSS radio frequency signals are the dual-band frequencies of L5 and S-band.

3. The system as claimed in claim 1, wherein the pair of receivers receive either an L5 radio signal or S-band radio signal or both L5 & S from the pair of antennas.

4. The system as claimed in claim 1, wherein the spatial and temporal information selected from satellite ephemeris parameters, almanac parameters, satellite position, satellite clock correction parameters, total group delay, user range accuracy, status messages, user position, velocity, time and other secondary information, ionospheric delay corrections and earth orientation parameters.

5. The system as claimed in claim 1, wherein a mutually agreed interface control protocol is established between the processor (110) and the plurality of consumer systems (108).

6. The system as claimed in claim 1, wherein plurality of consumer systems (108), upon an unstable state of any of the pair of receivers, is connected to the available receivers to ensure continuous IRNSS services to consumers.

7. The system as claimed in claim 1, wherein the IRNSS raw parameters is transmitted to other plurality of consumer system over any or a combination of the serial interface, universal serial bus interface (USB) and radio interfaces.

8. A method (200) for transmitting reliable Indian regional navigation satellite system (IRNSS) dual band receiver parameters over the network, the method comprising:
receiving (202), by a pair of antennas, a set of IRNSS radio frequency signals;
receiving (204), by a pair of receivers, the set of IRNSS radio frequency signals from the pair of antennas, the pair of receivers coupled to the pair of antennas;
processing (206), at a processor, the received set of IRNSS radio frequency signal and outputs the IRNSS raw parameters that contain spatial and temporal information, the processor operatively coupled to the pair of receivers;
receiving (208), at a plurality of consumer systems, the IRNSS raw parameters that contain spatial and temporal information over the network at the periodic interval and on-demand requests, the plurality of consumer systems coupled to the pair of receivers through a network, wherein the plurality of consumer systems perform post-processing of received IRNSS raw parameters facilitating IRNSS services to the consumers.