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System And Method To Implement Reliable Fault Tolerant Redundancy For Satcom Rf Path

Abstract: The present disclosure relates to a system (100) for implementation of redundancy for satellite communication, the system includes one or more BUC devices (106-1, 106-2) configured to receive a set of signals from a source (102) to perform amplification of the received set of signals, the BUC devices share a set of status parameters between them. The BUC devices coupled to associated load circuit (110) through the RF switch (108). A control unit (114) configured in the BUC devices to determine the set of status parameters of the BUC devices and assign, atleast one BUC device as master and adjacent BUC devices as stand-by wherein, upon determination of defect in the master BUC device, defective BUC device is removed from the associated load circuit and switch standby BUC device to master mode to perform uninterrupted service

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
01 September 2021
Publication Number
09/2023
Publication Type
INA
Invention Field
ELECTRONICS
Status
Email
info@khuranaandkhurana.com
Parent Application

Applicants

Bharat Electronics Limited
Corporate Office, Outer Ring Road, Nagavara, Bangalore - 560045, Karnataka, India.

Inventors

1. SANDEEP VERMA
Communications /PDIC, Bharat Electronics Limited, Jalahalli Post, Bangalore - 560013, Karnataka, India.
2. PRIYADARSHINI M P
Communications /PDIC, Bharat Electronics Limited, Jalahalli Post, Bangalore - 560013, Karnataka, India.
3. NIDHI SRIVASTAVA
Communications /PDIC, Bharat Electronics Limited, Jalahalli Post, Bangalore - 560013, Karnataka, India.

Specification

Claims:1. A system (100) for implementation of fault-tolerant redundancy for satellite communication, said system comprising: one or more block up converter (BUC) devices (106-1, 106-2) configured to receive a set of signals from a source (102) to perform amplification of the received set of signals, said one or more BUC devices (106-1, 106-2) coupled to each other to share a set of status parameters between the one or more BUC devices; a radio frequency (RF) switch (108) coupled to each of the one or more BUC devices (106-1, 106-2) through logical links (112), said one or more BUC devices coupled to associated load circuit (110) through the RF switch to output the received set of signals; and a control unit (114) configured in the one or more BUC devices, the control unit configured to: determine the set of status parameters of the one or more BUC devices (106-1, 106-2); and assign, atleast one BUC device of one or more BUC devices (106-1, 106-2) as master and adjacent BUC devices as stand-by based on the determined set of status parameters, wherein, upon determination of defect in the master BUC device, the control unit (114) configured to remove defective BUC device from the associated load circuit and switch standby BUC device to master mode such that atleast one BUC device of the one or more BUC devices(106-1, 106-2) is operating at any given instance to perform uninterrupted service. 2. The system as claimed in claim 1, wherein the logical link (116) is established among one or more BUC devices (106-1, 106-2) to exchange the set of status parameters between the one or more BUC devices, wherein logical links (112) among one or more BUC devices (106-1, 106-2) and RF switch (108) establishing dedicated path between one or more BUC devices (106-1, 106-2) and load circuit (110) through RF switch. 3. The system as claimed in claim 1, wherein the set of status parameters comprise health information, configuration information and any combination thereof. 4. The system as claimed in claim 1, wherein the one or more BUC devices (106-1, 106-2) comprise a first BUC device (106-1) and a second BUC device (106-2), wherein signal amplification is activated when the logical link is established between at least one BUC of one or more BUC devices (106-1, 106-2) and RF switch (108), wherein sub-second time convergent reliable link is achieved between the source (102) and load circuit (110) through one or more BUC devices (106-1, 106-2). 5. The system as claimed in claim 4, wherein the logical link (112) is established between the first BUC device (106-1) and RF switch (108) such that switch control of first BUC device (106-1) is connected to first position control of RF switch (108), first position indication of the RF switch (108) is connected to self-position indication of first BUC device (106-1) and second position indication of the RF switch (108) is connected to other position indication of the first BUC device (106-1). 6. The system as claimed in claim 4, wherein the logical link (112) is established between the second BUC device (106-2) and RF switch (108)such that switch control of the second BUC device (106-2) is connected to second position control of RF switch (108), second position indication of the RF switch (108) is connected to self-position indication of second BUC device(106-2) and first position indication of the RF switch (108)is connected to other position indication of the second BUC device (106-2). 7. The system as claimed in claim 1, wherein the one or more BUC devices (106-1, 106-2) are operated in redundant mode in two fashions, the two fashions comprise auto mode and manual mode. 8. The system as claimed in claim 7, wherein at auto mode, first BUC device (106-1) and the second BUC device (106-2) communicate with each other and mutually decide one of the BUC deviceas master and other BUC device as stand-by. 9. The system as claimed in claim 7, wherein at manual mode, user selects at least one of the one or more BUC devices as master and other BUC devices as stand-by. 10. A method (400) for implementation of fault-tolerant redundancy for satellite communication system, said method comprising: receiving (402), at one or more block up converter (BUC) devices, a set of signals from a source to amplify the set of signals, the one or more BUC devices coupled to each other to share a set of status parameters between the one or more BUC devices; determining (404), at a control unit configured in the one or more BUC devices, the set of status parameters of the one or more BUC devices, the RF switch coupled to each of the one or more BUC devices through logical links, wherein the one or more BUC devices coupled to associated load circuit through the RF switch to output the received set of signals; and assigning (406), atleast one BUC device of one or more BUC devices as master and adjacent BUC devices as standby based on the determined set of status parameters, wherein, upon determination of defect in the master BUC device, the control unit configured to remove defective BUC device from the associated load circuit and switch standby BUC device to master mode such that atleast one BUC device of the one or more BUC devices is operating at any given instance to perform uninterrupted service. , Description:TECHNICAL FIELD [0001] The present disclosure relates, in general, to satellite communication systems, and more specifically, relates to a system and method to implement reliable fault-tolerant redundancy for satellite communication (SATCOM) RF path. BACKGROUND [0002] Satellite communication systems tend to have an indoor unit and an outdoor unit. The indoor unit includes a modem, and the outdoor unit consists of an antenna and various sub-systems for transmit and receive. Outdoor units consist of a range of block upconverters (BUC’s), power supply units (PSU’s) for BUC’s, low noise block converters (LNB’s), radio frequency (RF) switch, waveguide and the likes for use in satellite earth stations. The RF signal flow between the indoor unit and the outdoor unit is usually done over an RF link, which can be a coaxial cable or waveguide link. The power level of RF signal on the RF link from the indoor unit to the antenna is low and not suitable for transmission over the air interface. The power level of the RF signal is usually amplified before transmitting over the air interface that is from the antenna towards the satellite. [0003] In the case of RF transmission link, indoor modem acts as a signal source and outdoor antenna can be referred to as load. An electronic device, which is an RF amplification device and can be a power amplifier or BUC is used on RF link between the indoor unit and the outdoor unit and transforms the low power RF signal arriving from the signal source into a high-power RF signal. In case of RF receive link, outdoor antenna acts as a signal source and the indoor modem can be referred to as load. An electronic device, which is an RF amplification device and can be a low noise amplifier is used on RF link between outdoor unit and indoor unit and transforms the low power RF signal arriving from the signal source into a high-power RF signal. [0004] Few existing system known in art includes controlling coupling and uncoupling of RF ports included in an RF switch matrix including first-side RF ports and second-side RF ports, where each of the first-side ports is configured to be selectively coupled to at least one of two or more of the second-side RF ports, identifying one or more of the second-side RF ports as active ports including an active port, causing the RF switch matrix to couple the active port to a signal port included in the first-side RF ports, obtaining at least one of a bit error rate and a signal to noise ratio for a demodulation of an RF stream received via the active port, and causing, in response to at least one of the matrix to couple the signal port to a spare port included in the second-side RF ports. Another existing system includes RF redundancy switch for selecting and outputting an output signal from a plurality of source signals. The RF redundancy switch selects the output signal from the input RF signals based on measurement of at least one signal validity criteria for the plurality of source signals, by application of a signal selection function thereto. [0005] Another existing system includes redundant amplifier, including a first switch for connecting, on a one-to-one basis, inputs P1 to Pm to m of outputs Q1 to Qn, where m and n are natural numbers and m

Documents

Application Documents

# Name Date
1 202141039623-STATEMENT OF UNDERTAKING (FORM 3) [01-09-2021(online)].pdf 2021-09-01
2 202141039623-POWER OF AUTHORITY [01-09-2021(online)].pdf 2021-09-01
3 202141039623-FORM 1 [01-09-2021(online)].pdf 2021-09-01
4 202141039623-DRAWINGS [01-09-2021(online)].pdf 2021-09-01
5 202141039623-DECLARATION OF INVENTORSHIP (FORM 5) [01-09-2021(online)].pdf 2021-09-01
6 202141039623-COMPLETE SPECIFICATION [01-09-2021(online)].pdf 2021-09-01
7 202141039623-Proof of Right [28-09-2021(online)].pdf 2021-09-28
8 202141039623-POA [18-10-2024(online)].pdf 2024-10-18
9 202141039623-FORM 13 [18-10-2024(online)].pdf 2024-10-18
10 202141039623-AMENDED DOCUMENTS [18-10-2024(online)].pdf 2024-10-18
11 202141039623-FORM 18 [29-08-2025(online)].pdf 2025-08-29