RU2661850C1 - Architecture of the subscriber terminal of the personal satellite communication network - Google Patents

Abstract

FIELD: technique of network communication.

SUBSTANCE: invention relates to network communication technologies. Architecture of the subscriber terminal of the personal satellite communication network, comprising a subscriber terminal, that consists of three independent modules, the first can be selected from the group: a smartphone, a tablet or a laptop; the second provides telephone communication, the third provides broadband access to the Internet, is characterized in that the second module provides access to a narrow-band satellite channel in the S-band for reception on a low-directional helical antenna of pilot signals, call signals and synchronization in the service channel, the mode of telephone communication and SMS-messages, the third module provides access to a broadband satellite communication channel operating in the Ka-band, to provide broadband access to the Internet through a personal satellite communication network using phased antenna arrays, wherein the second and third modules are configured to be shared or separately used, and their dimensions are commensurable with the dimensions of the first module.

EFFECT: technical result consists in increasing data transmission rate.

4 cl, 10 dwg

Description

The invention relates to the field of personal satellite communications, and in particular to the architecture of a subscriber terminal of a personal satellite communication network in a low-orbit satellite system.

The prior art subscriber terminals (AT) personal satellite communications network (SPperSS) are:

- a satellite wearable telephone set that allows working both in the SpSSSS and in the mobile communications network (SPS) of the 2G generation, ensuring operation only at low information transfer speeds (up to 12 kbit / s), having a high cost and requiring constant presence in the open air radio visibility of relay satellites;

- special adapters for satellite calls “Thuraya SatSleeve”, into which you can insert a smartphone that provides operation only at low data rates and requires constant presence in the open air to ensure radio visibility of satellite repeaters (SR);

- access points for a narrow-band satellite channel (TDU) of communication “IridiumGO” (see US9252868 from 02.02.2016, US2016087339 from 03.24.2016, USD768127 from 04.10.2016) and “Inmarsat IsatHub” (see US6542117 from 04/01/2003, EP084587070 from 06/03/1998) operating on a unidirectional antenna and ensuring operation only at low information transfer rates;

- access points to the broadband (TDSH) satellite communication channel, operating on a highly directional antenna of the phased array type antenna (PHA) in the L-band, which have significant weight and size characteristics, making them not portable, but transportable and, in addition, providing not high speed information transfer (up to 1 Mbps).

A distinctive feature of such ATs is that they work, as a rule, in the frequency ranges L and S.

A technical solution is also known, chosen as the closest analogue of the claimed invention, disclosed in the description (see RU2614049C2, 03/22/2017), in which subscribers are provided with access to telephone communications by supplying low-orbit satellite transmitters (NOSR) with multi-beam antennas and application optimized frequency-orbital plan to reduce the interaction of subscribers and intersecting service areas of spacecraft (SC) from different orbital planes, which will increase the energy YETİK radio link and used in subscriber terminals of a simple small-sized non-directional antenna, which reduces the size, weight and power consumption of the subscriber terminals.

The disadvantage of the technical solution indicated as the closest analogue is that this solution does not provide the consumer with broadband Internet access.

The technical result of the claimed invention is the provision of broadband access to the Internet through SperSS in places where there is no access to the Internet through terrestrial wired or radio networks;

achieving small sizes and weights that make AT personal (wearable) and allow you to transfer TDU and TDH in one case with a smartphone or tablet;

providing with the availability of TDU and TDSH, which allows the subscriber to move freely in the radio access area of the “Blue Tooth” or “Wi-Fi” network, without thinking about the need to be in the radio communication zone (SRS) of the NOSR;

ensuring the availability of TDU and TDSH, which allows you to create an operation algorithm in which only TDSU is constantly operating in SperSS, consuming significantly less electricity than TDSH, which reduces the energy costs of the AT as a whole, the use of two S and Ka bands at once allows the subscriber with abundant atmospheric precipitation should always be in touch, but without broadband Internet access (as in the Ka-band during rain, signal transmission is significantly impaired).

The technical result of the claimed invention is achieved by creating the architecture of the SPperSS AT containing AT, which consists of three independent modules, the first of which can be selected from the group: smartphone, tablet or laptop; the second provides telephone communications, the third provides broadband Internet access, while the second module provides access to a narrow-band satellite communication channel in the S-band for receiving pilot signals, call and synchronization signals in the service channel and a telephone communication mode to the unidirectional spiral antenna SMS-messaging, the third module provides access to the broadband satellite communication channel operating in the Ka-band to provide broadband access to the Internet through SperSS using the FA , The second and third module configured to joint or separate use, and their dimensions are comparable with the dimensions of the first module.

In a private embodiment, the second module contains an S-band modem, a GLONASS receiver, a Blue Tooth modem, and a USB interface.

In another particular embodiment, the third module comprises a Ka-band transmitting headlamp, a Ka-band phased active antenna array (AFAR), a Ka-band modem, a USB interface, a Blue Tooth modem, a Wi-Fi modem, an Ethernet interface.

In another particular embodiment, the dimensions and shape of the third module repeat the dimensions and shape of the first module, and the second module is in the form of a small box, a cylinder or a truncated cone with a sliding antenna located on the top of the retractable rod.

The claimed invention is illustrated by the following figures:

FIG. 1 - the appearance of the TDH (satellite router);

FIG. 2 - the appearance of the TDH (satellite router) with the TDU (satellite phone) connected to it via the USB port;

FIG. 3 - a generalized scheme for organizing AT communications in SPerSS and ATP;

FIG. 4 - functional diagram of the AT;

FIG. 5 is a structural diagram of a transmitting slotted phased array lamp for carrying with a smartphone in one case;

FIG. 6 is a structural diagram of a receiving slotted AFAR TDSH for carrying with a smartphone in one case;

FIG. 7 - algorithm of the operation of the AT when initiating a call with the AT in a narrowband communication channel;

FIG. 8 is a diagram of an AT operation when receiving a call signal in a narrowband communication channel;

FIG. 9 - algorithm of the AT when receiving a call in a broadband communication channel;

FIG. 10 - algorithm of the operation of the AT during the initialization of broadband Internet access (or broadband call) with the AT in the Ka-band.

The positions in FIG. 1 to 9 denote the following:

1 - НСОР;

2 –CA GLONASS;

3 - modem S-band TDU;

4 - Ka-band modem of the access point to the broadband communication channel TDSH;

5 - smartphone or tablet;

6 - base station (BS) ATP;

7 - transceiver unidirectional antenna (MNA) S-band;

8 - transmitting headlamp Ka-band TDH;

9 - receiving AFAR Ka-band TDSH;

10 –TDSH;

11 - TDU;

12 - GLONASS receiver TDU;

13 - Blue Tooth TDSH modem;

14 - USB TDSH interface;

15 - USB TDU interface;

16 - modem Blue Tooth TDU;

17 - Wi-Fi modem TDU;

18 - the second interface of the USB TDU;

19 - Ethernet TDU interface;

20 - GLONASS receiver TDU;

21 - crystal oscillator frequency TDU;

22 - low-noise antenna amplifier-convector (LNA-K) S-band TDU;

23 - power amplifier-convector (UM-K) S-band TDU;

24 - TDSh modulator;

25 - TDSS demodulator;

26 - router TDU;

27 - USB TDU interface;

28 - Blue Tooth TDU interface;

29 - TDU operation control controller;

30 - crystal oscillator frequency TDSH;

31.1 - 31.N - LNA-K Ka-band TDSH;

32 - preliminary LNA of Ka-band TDSH;

33 - power amplifier-convector (UM-K) Ka-band TDSH;

34 - TDSh modulator;

35 - TDSS demodulator;

36 - router TDSH;

37 - USB TDSH interface;

38 - Blue Tooth TDH interface;

39 - controller control the operation of the TDH;

40 - Ethernet TDSH interface;

41 - Wi-Fi TDSH interface;

42 - adder high-frequency signals (HF) TDSH;

43 - divider RF signals TDSH;

44.1 - 44.N - phase shifters (PV) of the receiving HEADLIGHTS of the TDSh;

45.1 - 45.N - FV of the transmitting HEADLIGHT ТДШ;

46 is a diagram-forming diagram of a TDH;

47 - block auto tracking frequency TDSH.

The claimed device is as follows.

АТ consists of: a smartphone or tablet computer 5, ТДУ 11 and ТДШ 10, which are connected to each other by wired USB connections or wireless Blue Tooth connections, ТДУ 11 can be connected directly to both the USB port ТДШ 10, and to a smartphone or tablet computer 5 In addition, smartphones, tablets and laptops can be connected to the TDH 10 with wireless Wi-Fi connections, and laptops and computers can be connected via wired Ethernet connections.

Three versions of the AT:

6 inches1) for carrying in one case a smartphone with a size of 6 inches, TDSh 10, 6 inches and TDU 11;

8 inches2) for carrying in one case a tablet computer 8 inches in size, TDSh 10 in the size of 8 inches and TDU 11;

10 inches3) for carrying in one case a tablet computer with a size of 10 inches, TDSh 10 with a size of 10 inches and TDU 11.

In all three versions, the size and shape of the TDH 10 repeats the size and shape of a smartphone (or tablet computer) 5, and the TDU 11 has the shape of a small box, a cylinder or a truncated cone with a sliding antenna located on the top of the sliding antenna. This design allows you to store and carry AT in one case.

TDU 11 consists of: an S-band 7 MNA transceiver made of a spiral antenna on a retractable rod, an S-band 3 modem, a GLONASS receiver 12, a Blue Tooth 13 modem, and a USB 14 interface.

TDSh 10 consists of: a transmitting HEADLIGHT Ka-band 8, a receiving AFAR Ka-band 9, a Ka-band 4 modem, a Blue Tooth 16 modem, a Wi-Fi 17 modem, two USB 15 and 18 interfaces, an Ethernet 19 interface.

The composition of antibodies is presented in more detail on a generalized functional diagram.

The S-band 3 modem of the TDU consists of: SNA-receiving MNA 7 GLONASS receiver connected by internal coaxial cables to the LNA-K 22 S-band, convector power amplifier (UM-K) 23 S-band and GLONASS receiver 20; LNA-K 22, connected by an internal coaxial cable with a demodulator 25 and an internal bus with a crystal frequency generator 21; a demodulator 25, connected by an internal data bus of the information channel to the router 26, an internal data bus of the control channel with the operation control controller 29 and an internal bus with a crystal frequency generator 21; a router 26 is connected by an internal data bus of the information channel to the USB 27 interface and the Blue Tooth interface 28, and also connected by an internal data bus of the control channel to the operation control controller 29;

UM-K 23 of the S-band is connected to an internal coaxial cable with a modulator 24 and an internal bus with a crystal oscillator frequency 21; the modulator 24 is connected by an internal data bus of the information channel to the router 36, an internal data bus of the control channel with an operation control controller 29 and an internal bus by a frequency crystal oscillator 21.

The Ka-band 3 modem of the TDSh consists of: a Ka-band 9 AFAR receiving device connected by waveguide paths with preliminary LNAs 31.1 - 31.N, connected by waveguide paths with phase shifters (PV) 44.1 - 44.N, connected to the RF signal adder 42, connected by waveguide paths with LNA-K Ka-band 31, connected by an internal coaxial cable with a demodulator 35 and an internal bus with a crystal oscillator frequency 30; the demodulator 35 is connected by an internal data bus of the information channel to the router 36, an internal data bus of the control channel with the operation control controller 39 and an internal bus with a frequency crystal oscillator 30; the router 36 is connected by internal data bus data channel with interfaces: USB 37, Blue Tooth 38, Ethernet 40 and Wi-Fi 41, as well as connected by an internal data bus control channel with the operation control controller 49;

FV 44.1 - 44.N of receiving AFARs are connected to a diagram-forming circuit 46 connected to a frequency tracking unit 47 connected to an internal data bus of a control channel with an operation control controller 39, and also connected to an internal bus with a frequency crystal oscillator 30;

the transmitting HEADLIGHT 8 of the Ka-band is connected to the PV 45.1 - 45.N connected to the RF signal splitter 43, connected to the UM-K of the Ka-band 32, connected to the modulator 34, connected by the internal data bus of the information channel to the router 36, internal a control channel data transmission bus with an operation control controller 39 and an internal bus with a frequency crystal oscillator 30;

PV (45.1 - 45.N) transmitting HEADLIGHTS are connected to a beam-forming circuit 46.

Further, as a non-exclusive example, the main technical characteristics of the claimed device are given:

1) technical characteristics of the TDU:

1.1) Synchronization of the built-in quartz frequency synthesizer - external from 1 Hz, received by an external GPS / GLONASS receiver and transmitted through an external connector.

1.2) Characteristics of the radio interface of the subscriber satellite radio line in the S-band:

1.2.1) information transfer protocol - CDMA, used in terrestrial mobile networks of the second generation (2G) of the IS-95 standard;

1.2.2) modulation methods - QPSK, BPSK;

1.2.3) coding methods: internal - convolutional, external - Reed-Solomon turbo code, wideband spreading based on Walsh codes;

1.2.4) channelization method - (MF-CDMA) multiple access with frequency-code division multiplexing;

1.2.5) signal structure - noise-like broadband signals;

1.2.6) frequency range:

- downlink: 21.7 ÷ 2.2 GHz;

- radio line up: 1.98 ÷ 2.01 GHz;

1.2.7) radiation power - up to 0.5 W;

1.2.8) information transfer rate:

- downlink: 12 ÷ 24 kbit / s;

- radio link up: 6 ÷ 12 kbit / s.

1.3) TDU dimensions:

- minium - 145 * 10 ÷ 20 * 8 ÷ 15 mm;

- medium - 185 * 10 ÷ 20 * 10 ÷ 20 mm;

- maximum - 250 * 10 ÷ 20 * 10 ÷ 20 mm.

2) technical characteristics of the TDH:

2.1) Synchronization of the built-in quartz frequency synthesizer - external from 1Hz, received from the TDU and through an external connector.

2.2) Characteristics of the radio interface of the subscriber satellite radio line in the Ka-band:

2.2.1) technology - W-CDMA, used in terrestrial mobile networks of the third generation (3G) standard UMTS or orthogonal frequency multiplexing (OFDMA) WiMAX standard IEEE 802.16;

2.2.2) modulation methods - QPSK, BPSK;

2.2.3) coding methods: internal - convolutional, external - Reed-Solomon turbo code, wideband spreading based on Walsh codes;

2.2.4) channel separation method — frequency-code division multiple access (MF-CDMA) for W-CDMA technology or orthogonal frequency multiplexing (OFDMA) for WiMAX technology;

2.2.5) the structure for W-CDMA signal technology is noise-like wideband signals, and for WiMAX technology, radio signals at orthogonal subcarrier frequencies;

2.2.6) frequency range:

- downlink: 17.7 ÷ 20.2 GHz;

- radio link up: 27.5 ÷ 30 GHz;

2.2.7) radiation power - up to 0.5 - W;

2.2.8) information transfer rate:

- downlink: 512 ÷ 4096 Mbps;

- radio link up: 128 ÷ 1024 Mbps.

2.3) TDSH dimensions without power supply:

- minium - 145 * 75 * 8 ÷ 15 mm;

- medium - 185 * 105 * 10 ÷ 20 mm;

- maximum - 250 * 158 * 10 ÷ 25 mm.

The following describes the operation of the claimed device.

AT operation modes:

1) in narrow-band mode of operation in the S-band:

1.1) receiving AT call signal in the narrow-band mode of operation (OA);

1.2) transmission of the call signal to the URP;

2) in broadband mode:

2.1) receiving an AT call signal in a broadband mode of operation (SRR) from a subscriber or Internet server;

2.2) transmitting the subscriber's call signal to the ShRP or transmitting the request to the Internet server.

The AT can only work as a smartphone in the ATP, and if the connection to the ATP is lost, it switches to the S-band (narrow channel) mode of the satellite radio subscriber line (ARL) of the satellite communication (SS), while the operation of the TDU receiving path is activated. In order to ensure satellite communications operation in the ARL, it is necessary to go to an open place and install the TDU and TDH by pointing their antennas up, while the TDU can be carried with you or connected to the USB TDH interface. To ensure the operation of the TDH, it is necessary to install it on a horizontal platform, because TDS antennas are highly directional. A smartphone using TDU in ARL SS can only work on receiving telephony and SMS-messages, and if broadband access to the Internet is required, then separately it is necessary to purchase, install and activate a TDH. At the choice of the user, you can only purchase TDUs and not purchase TDSHs, but TDSU cannot work separately from TDUs, and TDUs without TDSs can work.

TDU, upon activation, goes into standby mode for receiving pilot signals and call signals in the service channel of the ARL SS from NOSR. Accepting constantly IP packets in the service channel, the TDU reads their headers and determines that the recipient IP address is specified in the IP address field, it first initiates the procedure for selecting the NOSP for registration, then sends the registration request to the selected NOSP, receiving a positive response, sets up its RF path for working with the provided resource of the on-board relay complex (DBK) of the NOSR (frequency and sequence code of the NPS), then generates a response signal to the caller and sends it to the NOSR, which relayes it to the caller Bonlent.

If the TDU receives a call that needs to be answered in the broadband channel, then the TDU transmits a call signal to the TDN via the USB interface or the Blue Tooth radio interface, in addition, the TDU activates the reception of signals with ballistic information about the NOSR flight path in the service channel and then transfers this information to the TDN. Having received a call signal and ballistic information from the TDU, the TDH forms a beam directed to the NOSR on the transmitting headlamp, and the receiving AFAR tunes to receive signals in a certain direction from the NOSR. The receiving AFAR and the transmitting PHAR TDSS constantly monitor their direction to the NOSR in the auto tracking mode. When switching to another NOSR, the receiving AFAR and the transmitting PHAR TDSS go to its tracking. At the end of a broadband access session, the TDH switches to standby mode for receiving call signals from the TDU.

Summarizing the foregoing, once again dwell on the distinguishing features of the claimed invention:

1) consists of three modules:

smartphone, or tablet, or laptop;

access points to a narrow-band satellite communication channel operating in the S-band for receiving pilot signals, call and synchronization signals in the service channel to a unidirectional spiral antenna, and for providing a telephone communication mode and SMS messages;

access points to the broadband satellite communication channel operating in the Ka-band to provide broadband access to the Internet through SperSS using a phased array antenna (PAR);

2) the access point to the narrow-band satellite communication channel and the access point to the broadband satellite communication channel does not contain an integrated module for working in the SPS network of the 2G, 3G and 4G generations, but connects to any smartphone, tablet or laptop via Blue Tooth or Wi-Fi wireless connections -Fi, which reduces the cost of AT, allows the user not to carry TDU and TDSS SPperSS, but just be in the coverage area of Blue Tooth or Wi-Fi radio networks, allows you to increase the transmission power of AT above the allowable in a mobile phone requirements for increasing the speed of information transfer;

3) unlike similar solutions in the AT “Thuraya SatSleeve”, the proposed access point to the narrow-band satellite communication channel can work both connected to the smartphone’s case and separately from it, which allows the subscriber to move freely in the radio access area of the “Blue Tooth” network without hesitation about the need to be in the SRS NOSR;

4) unlike similar solutions in AT “IridiumGO” and “Inmarsat IsatHub”, the proposed access point to the broadband satellite communication channel is equipped with a PAR and not low-directional antennas and therefore provides broadband Internet access;

5) unlike similar solutions in AT “Iridium Pilot”, the proposed access point to the broadband satellite communication channel is equipped with headlamps operating in the Ka-band and therefore having smaller dimensions, making it possible to make the AT personal (wearable) and not automobile (portable);

6) in addition, the operation of the proposed access point to the broadband satellite communication channel in the Ka-band allows for several times faster information transfer with energy costs comparable to those of AT “Iridium Pilot”, “IridiumGO” and “Inmorsat IsatHub”;

The claimed invention provides:

1) broadband access to the Internet through SperSS in places where there is no access to the Internet through unearthly wired or radio networks;

2) the small size and weight make the AT personal (wearable) and allow you to transfer TDU and TDH in the same case with a smartphone or tablet;

3) the presence of TDU and TDH allows the subscriber to move freely in the radio access zone of the “Blue Tooth” or “Wi-Fi” network, without thinking about the need to be in the air defense system;

4) the presence of a TDU and a TDH allows you to create an operating algorithm in which only the TDU is constantly running in SPerSS, which consumes significantly less electricity than the access point to a broadband communication channel, and reduces the energy costs of the AT as a whole;

5) the use of two S and Ka bands at once allows the subscriber to always be in touch with heavy precipitation, but without broadband access to the Internet (as in the Ka-band, signal transmission is significantly impaired during rain).

The claimed technical result is achieved by the following:

1) the use of TDU, constantly working in SperSS and providing reception in the S-band of call signals, pilot signals and synchronization signals, as well as providing operation in the mode of telephony and receiving SMS messages;

2) the application of the TDH, which is included in the work in the SpSSSS in the Ka-band and providing broadband access to the Internet;

3) the use of Blue Tooth or Wi-Fi radio networks to access SperSS from a smartphone via access points, as well as the ability to connect to the TDU via USB and the ability to connect to the TDSS via USB and Ethernet.

Claims (4)

1. The architecture of the subscriber terminal of a personal satellite communication network, comprising a subscriber terminal, which consists of three independent modules, the first of which can be selected from the group: smartphone, tablet or laptop; the second provides telephone communications, the third provides broadband Internet access, characterized in that the second module provides access to a narrow-band satellite communication channel in the S-band for receiving pilot signals, call signals and synchronization signals in the service channel on a unidirectional spiral antenna, telephone mode communications and SMS-messages, the third module provides access to a broadband satellite communication channel operating in the Ka-band to provide broadband access to the Internet through a staff network hydrochloric satellite communication using phased array antennas, the second and third module configured to joint or separate use, and their dimensions are comparable with the dimensions of the first module. 2. The architecture of the subscriber terminal according to claim 1, characterized in that the second module contains an S-band modem, a GLONASS receiver, a Blue Tooth modem, a USB interface. 3. The architecture of the subscriber terminal according to claim 1, characterized in that the third module contains a transmitting phased antenna array of Ka-band, a receiving active phased antenna array of Ka-band, Ka-band modem, USB interface, Blue Tooth modem, Wi-Fi modem , USB interface, Ethernet interface. 4. The architecture of the subscriber terminal according to claim 1, characterized in that the size and shape of the third module follows the size and shape of the first module, and the second module has the shape of a small box, cylinder or truncated cone with a sliding antenna located on the top of the retractable rod.

Images