CN113382462B - Multi-closed-loop power control system and control method suitable for satellite communication - Google Patents
Multi-closed-loop power control system and control method suitable for satellite communication Download PDFInfo
- Publication number
- CN113382462B CN113382462B CN202110551982.3A CN202110551982A CN113382462B CN 113382462 B CN113382462 B CN 113382462B CN 202110551982 A CN202110551982 A CN 202110551982A CN 113382462 B CN113382462 B CN 113382462B
- Authority
- CN
- China
- Prior art keywords
- power
- power control
- cni
- subsystem
- satellite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/08—Closed loop power control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18519—Operations control, administration or maintenance
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a multi-closed-loop power control system and a multi-closed-loop power control method suitable for satellite communication, and belongs to the technical field of satellite communication. The system comprises an antenna, a satellite modem, a DPD predistortion subsystem, an up-conversion amplifier, a coupler, a duplexer, a power divider, a down-conversion low-noise amplifier, a broadband detection module and a power control subsystem. The invention has the beneficial effects that: the control system and the control method can detect the transmitting power of the antenna reverse transmitting link in real time, realize the real-time control of the transmitting power of the system link according to the forward CNI, the reverse packet error rate and the DPD predistortion system which are fed back by the main station, and ensure the working stability of the system.
Description
The technical field is as follows:
the invention belongs to the technical field of satellite communication, and particularly relates to a multi-closed-loop power control system and a multi-closed-loop power control method suitable for satellite communication.
Background art:
the mobile satellite ground station communication system is called 'communication in motion' for short. The satellite-in-motion communication system can track platforms such as satellites in real time in the moving process of moving carriers such as vehicles, ships, airplanes and the like, continuously transmit multimedia information such as voice, data, images and the like, and can meet the requirements of various military and civil emergency communication and multimedia communication under moving conditions. The satellite communication system well solves the problem that various moving carriers such as vehicles, ships and the like continuously transmit multimedia information such as voice, data, high-definition dynamic video images, faxes and the like in real time through a geostationary satellite in motion, is a major breakthrough in the communication field, is an application field with vigorous and rapid development in the current satellite communication field, and has very wide development prospects in both military and civil fields.
The tracking of the current communication-in-motion antenna needs to be carried out based on beacons and carriers, the beacons and the carriers are adjusted and controlled by the satellite according to the requirements of a coverage area, the antenna can realize the tracking of a forward signal and the measurement of signal strength, but cannot carry out real-time monitoring control on a reverse transmitting link, and cannot accurately control the transmitting power.
Disclosure of Invention
In order to solve the above problems, a primary object of the present invention is to provide a multi-closed-loop power control system and a control method suitable for satellite communication, where the control system and the control method can perform real-time detection on the transmit power of an antenna reverse transmit link, and implement real-time control on the transmit power of a system link according to a forward CNI, a reverse packet error rate and a DPD predistortion system fed back by a master station, so as to ensure the stability of system operation.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a multi-closed-loop power control system suitable for satellite communication comprises an antenna, a satellite modem, a DPD pre-distortion subsystem, an up-conversion amplifier, a coupler, a duplexer, a power divider, a down-conversion low-noise amplifier, a broadband detection module and a power control subsystem.
Further, the antenna is connected with a duplexer.
Furthermore, the duplexer, the down-conversion low-noise amplifier, the satellite modem, the DPD pre-distortion subsystem, the up-conversion amplifier and the coupler are circularly connected.
Further, the DPD predistortion subsystem, the up-conversion amplifier, the coupler and the power divider are connected in a circulating manner.
Furthermore, the power divider, the broadband detection module and the power control subsystem are sequentially connected.
Further, the power divider is connected with the DPD predistortion subsystem.
Further, the satellite modem is connected to a power control subsystem.
Furthermore, the antenna can realize the receiving and sending of satellite signals, the signals output by the satellite modem are sent to the satellite through the antenna system, and meanwhile, the satellite is received to send information to the satellite modem.
Further, the satellite Modem, abbreviated as "Modem", can implement demodulation of received satellite signals and modulation of signals to be transmitted, and implement network management and service processing at the same time.
Furthermore, the DPD pre-distortion subsystem adjusts the carrier output power in real time based on the feedback of the power amplifier output power value, so as to ensure that the power amplifier is in a linear working area and avoid the signal distortion.
Furthermore, the up-conversion amplifier can mix and convert the L-band signal output by the Modem into a Ku-band satellite signal.
Further, the coupler can divide one path of microwave power into a plurality of paths of microwave power to be output in proportion.
Further, the power divider divides one path of signal into two paths of signals to be output.
Further, the broadband detection module detects the carrier output power based on the broadband detection chip and outputs a power level value.
Furthermore, the power control subsystem converts the power level value through an ADC, and outputs the command to the Modem according to the corresponding judgment condition.
Further, the down-conversion low-noise amplifier converts the frequency of the received satellite signal into an L-band and amplifies the signal.
The invention also provides a multi-closed-loop power control system and a control method suitable for satellite communication, wherein the control method comprises the following steps:
s1: the satellite modem is connected with the up-conversion amplifier;
s2: the output end of the up-conversion amplifier outputs two paths of signals through a coupler, and one path of signal is connected with the interface of the transmitting end of the duplexer and is output to an antenna; one path of signal is divided into two paths by a power divider, wherein one path of signal is connected with a power detection module, and the other path of signal is connected with a DPD pre-distortion subsystem; the DPD predistortion subsystem realizes the control of power output nonlinear distortion; the power detection module detects the output power of the power amplifier in real time and feeds back the power value to the master control system;
s3: the power control subsystem feeds back the power value to the Modem through an RS422 interface in real time, and controls the output power by combining three parameters of a reverse CNI, a reverse false alarm rate parameter and a forward CNI value which are sent to the satellite Modem by the satellite main station system.
Further, the specific control step of the output power control in S3 includes:
s31: the power control subsystem compares the forward CNI value and the RSSI value with forward theoretical CNI values and RSSI values under different longitudes and latitudes in a system database to judge the working state of the antenna;
s32: in the S31, under the condition that the antenna is in a normal operating state, the operating state of the up-conversion amplifier is determined by detecting the power at the output end of the up-conversion amplifier to perform the first-stage power control;
s33: while detecting the output power of the up-conversion amplifier in the S32, the satellite modem compares the reverse CNI value fed back by the satellite master station system with reverse theoretical CNI values under different longitudes and latitudes to perform second-stage power control;
s34: in the working process of the system, the DPD predistortion subsystem realizes the third-level power control of the transmitting power by acquiring and tracking the input signal at the front end of the up-conversion amplifier and the output signal at the rear end of the up-conversion amplifier in real time.
Further, the method of the first-stage power control, the second-stage power control, and the third-stage power control in S3 is dynamic power compensation, and the dynamic power compensation step includes:
s101: acquiring values of parameters of Pout, RSSI, rx-CNI and Tx-CNI;
s102: performing logical operation by using the parameters in S101: (| RSSI-RSSI theory |≤1300)&&(|Rx-CNI-Rx-CNI theory Less than or equal to 5); if the operation result of the expression is true, the next step is carried out，
S103: performing logical operation by using the parameters in S101: i Tx-CNI-Tx-CNI theory |≤5；
S104: pmodem and Pout are compared by LUT lookup;
s105: the deviation value of the theoretical value in the Pout and LUT table is more than or equal to P threshold ；
S106: DPD automatic gain control;
s107: outputting the corrected signal according to the LUT output power;
s108: output P theory And then, the process is ended.
Further, if the expression operation result in S102 is true, the process proceeds to step S103; if the signal is false, the power control subsystem enters S104 after adaptive adjustment of Modem power control;
further, if the operation result of the expression in S103 is true, the process directly proceeds to step S104; if the signal is false, the power control subsystem enters S104 after adaptive adjustment of Modem power control;
further, the deviation value of the theoretical value in the LUT table in the S105 is more than or equal to P threshold If the judgment is true, the process proceeds to S106, and if the judgment is false, the process proceeds to S108 by skipping S106 and S107.
The invention has the beneficial effects that: the control system and the control method can detect the transmitting power of the antenna reverse transmitting link in real time, realize the real-time control of the transmitting power of the system link according to the forward CNI, the reverse packet error rate and the DPD predistortion system which are fed back by the main station, and ensure the working stability of the system.
Drawings
FIG. 1 is a block diagram of the system architecture of the present invention;
FIG. 2 is a flow chart of the present invention for obtaining input parameters associated with a power control subsystem;
FIG. 3 is a flow chart of the power dynamics compensation of the present invention;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-3, the present invention is implemented as follows:
a multi-closed-loop power control system suitable for satellite communication comprises an antenna, a satellite modem, a DPD predistortion subsystem, an up-conversion amplifier, a coupler, a duplexer, a power divider, a down-conversion low-noise amplifier, a broadband detection module and a power control subsystem.
The antenna is connected with the duplexer.
The duplexer, the down-conversion low-noise amplifier, the satellite modem, the DPD pre-distortion subsystem, the up-conversion amplifier and the coupler are in circulating connection.
The DPD predistortion subsystem, the up-conversion amplifier, the coupler and the power divider are in circulating connection.
The power divider, the broadband detection module and the power control subsystem are sequentially connected.
The power divider is connected with the DPD predistortion subsystem.
The satellite modem is connected with the power control subsystem.
The embodiment also provides a multi-closed-loop power control method suitable for satellite communication, which comprises the following steps:
s201: the output end of the up-conversion amplifier outputs two paths of signals through a coupler, wherein one path of signal is connected with the interface of the transmitting end of the duplexer, and the other path of signal is connected with the power detection module;
s202: the power detection module detects the output power Pout of the up-conversion amplifier in real time and feeds a level value Vdec corresponding to the power back to the power control subsystem;
s203: the system detects the RSSI value of the satellite beacon signal strength, and simultaneously feeds the RSSI value of the beacon strength back to the power control subsystem through the SPI interface;
s204: when the system works normally, the Modem feeds back the carrier modulation demodulation values Rx-CNI and Tx-CNI to the power control subsystem through the RS422 interface.
S205: the power control subsystem detects the system link according to the feedback output power level value Vout, RSSI value, forward carrier-to-noise ratio Rx-CNI and reverse carrier-to-noise ratio Tx-CNI, and dynamically compensates the system power according to the control flow shown in figure 3.
The method of dynamic power replenishment comprises the steps of:
s301: acquiring values of parameters of Pout, RSSI, rx-CNI and Tx-CNI;
s302: performing logical operation by using the parameters in S301: (| RSSI-RSSI theory |≤1300)&&(|Rx-CNI-Rx-CNI theory Less than or equal to 5); if the operation result of the expression is true, then the next step is carried out,
s303: performing logical operation by using the parameters in S301: i Tx-CNI-Tx-CNI theory |≤5；
S304: pmodem and Pout are compared through LUT table look-up;
s305: the deviation value of the theoretical value in the Pout and LUT table is more than or equal to P threshold ；
S306: DPD automatic gain control;
s307: outputting a signal after the output power is corrected according to the LUT;
s308: output P theory And then, the process is ended.
If the operation result of the expression in the step S302 is true, the step S303 is executed; if the false is true, the power control subsystem enters S304 after adaptive adjustment of Modem power control;
if the operation result of the expression in the step S303 is true, directly entering a step S304; if the false is true, the power control subsystem enters S304 after adaptive adjustment of Modem power control;
the deviation value of the theoretical value in the LUT table in the S305 is more than or equal to P threshold If the judgment is true, the process proceeds to S306, and if the judgment is false, the process skips S306 and S307 and proceeds directly to S308.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (10)
1. A multi-closed-loop power control method suitable for satellite communication, the power control method comprising:
s1: the satellite modem is connected with the up-conversion amplifier;
s2: the output end of the up-conversion amplifier outputs two paths of signals through a coupler, and one path of signal is connected with the interface of the transmitting end of the duplexer and is output to an antenna; one path of signal is divided into two paths by a power divider, wherein one path of signal is connected with a power detection module, and the other path of signal is connected with a DPD pre-distortion subsystem; the DPD predistortion subsystem realizes the control of power output nonlinear distortion; the power detection module detects the output power of the power amplifier in real time and feeds back the power value to the master control system;
s3: the power control subsystem feeds back the power value to the Modem through an RS422 interface in real time, and controls the output power by combining three parameters of a reverse CNI, a reverse false alarm rate parameter and a forward CNI value which are sent to the satellite Modem by the satellite main station system.
2. The method as claimed in claim 1, wherein the step of controlling the output power in S3 comprises:
s31: the power control subsystem compares the forward CNI value and the RSSI value with forward theoretical CNI values and RSSI values under different longitudes and latitudes in a system database to judge the working state of the antenna;
s32: in the S31, under the condition that the antenna is in a normal operating state, the operating state of the up-conversion amplifier is determined by detecting the power at the output end of the up-conversion amplifier to perform the first-stage power control;
s33: while detecting the output power of the up-conversion amplifier in the S32, the satellite modem compares the reverse CNI value fed back by the satellite master station system with reverse theoretical CNI values under different longitudes and latitudes to perform second-stage power control;
s34: in the working process of the system, the DPD pre-distortion subsystem realizes the third-level power control of the transmitting power by acquiring and tracking the input signal at the front end of the up-conversion amplifier and the output signal at the rear end of the up-conversion amplifier in real time.
3. The method as claimed in claim 2, wherein the first stage power control, the second stage power control, and the third stage power control are dynamic power compensation, and the dynamic power compensation comprises:
s101: acquiring values of parameters of Pout, RSSI, rx-CNI and Tx-CNI;
s102: performing logical operation by using the parameters in S101: (| RSSI-RSSI theory |≤1300)&&(|Rx-CNI-Rx-CNI theory Less than or equal to 5); if the operation result of the expression is true, then the next step is carried out,
s103: performing logic operation by using the parameters in S101: i Tx-CNI-Tx-CNI theory |≤5；
S104: pmodem and Pout are compared through LUT table look-up;
s105: the deviation value of the theoretical value in the Pout and LUT table is more than or equal to P threshold ；
S106: DPD automatic gain control;
s107: outputting the corrected signal according to the LUT output power;
s108: output P theory And then, the process is ended.
4. The method as claimed in claim 3, wherein if the operation result of the expression in S102 is true, the step S103 is performed; if the signal is false, the power control subsystem enters S104 after adaptive adjustment of Modem power control;
if the operation result of the expression in the step S103 is true, directly entering a step S104; if the signal is false, the power control subsystem enters S104 after adaptive adjustment of Modem power control;
in said S105The theoretical value deviation value in the LUT table is more than or equal to P threshold If the judgment is true, the process proceeds to S106, and if the judgment is false, the process proceeds to S108 by skipping S106 and S107.
5. A power control system for implementing the multi-closed-loop power control method suitable for satellite communication of any one of claims 1-4, wherein the system comprises an antenna, a satellite modem, a DPD predistortion subsystem, an up-conversion amplifier, a coupler, a duplexer, a power divider, a down-conversion low-noise amplifier, a broadband detection module, and a power control subsystem.
6. The power control system of claim 5, wherein the antenna is coupled to a duplexer.
7. The power control system of claim 5, wherein the diplexer, down-conversion low noise amplifier, satellite modem, DPD predistortion subsystem, up-conversion amplifier, coupler are cyclically connected.
8. The power control system of claim 5, wherein the DPD predistortion subsystem, the upconverting amplifier, the coupler, and the power divider are cyclically connected.
9. The power control system of claim 5 wherein the power divider, the wideband detection module, and the power control subsystem are connected in sequence.
10. The power control system of claim 5 wherein the power splitter is coupled to a DPD predistortion subsystem and the satellite modem is coupled to a power control subsystem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110551982.3A CN113382462B (en) | 2021-05-20 | 2021-05-20 | Multi-closed-loop power control system and control method suitable for satellite communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110551982.3A CN113382462B (en) | 2021-05-20 | 2021-05-20 | Multi-closed-loop power control system and control method suitable for satellite communication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113382462A CN113382462A (en) | 2021-09-10 |
| CN113382462B true CN113382462B (en) | 2023-03-21 |
Family
ID=77571481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110551982.3A Active CN113382462B (en) | 2021-05-20 | 2021-05-20 | Multi-closed-loop power control system and control method suitable for satellite communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113382462B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114531195B (en) * | 2022-02-18 | 2024-01-23 | 北京爱科迪通信技术股份有限公司 | Multi-mode multi-caliber multi-band backpack satellite station |
| CN116192240B (en) * | 2023-03-07 | 2024-03-12 | 深圳市星楷通讯设备有限公司 | Green power control system and method suitable for satellite communication |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6157811A (en) * | 1994-01-11 | 2000-12-05 | Ericsson Inc. | Cellular/satellite communications system with improved frequency re-use |
| CN1825687A (en) * | 2006-02-27 | 2006-08-30 | 东南大学 | X wave band substrate integrated waveguide single board radio frequency system |
| CN101626355A (en) * | 2009-08-11 | 2010-01-13 | 北京天碁科技有限公司 | Calibration device and calibration method of multi-input multi-output (MIMO) terminal |
| CN103957046A (en) * | 2014-05-06 | 2014-07-30 | 北京航天控制仪器研究所 | Communication in moving antenna adjacent satellite disturbance interception device and method |
| CN105490733A (en) * | 2015-12-28 | 2016-04-13 | 深圳市华讯方舟卫星通信有限公司 | Signal transceiver |
| CN112491459A (en) * | 2020-11-19 | 2021-03-12 | 成都迅翼卫通科技有限公司 | Vehicle-mounted satellite communication antenna feeder system and antenna kit for communication in motion |
-
2021
- 2021-05-20 CN CN202110551982.3A patent/CN113382462B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6157811A (en) * | 1994-01-11 | 2000-12-05 | Ericsson Inc. | Cellular/satellite communications system with improved frequency re-use |
| CN1825687A (en) * | 2006-02-27 | 2006-08-30 | 东南大学 | X wave band substrate integrated waveguide single board radio frequency system |
| CN101626355A (en) * | 2009-08-11 | 2010-01-13 | 北京天碁科技有限公司 | Calibration device and calibration method of multi-input multi-output (MIMO) terminal |
| CN103957046A (en) * | 2014-05-06 | 2014-07-30 | 北京航天控制仪器研究所 | Communication in moving antenna adjacent satellite disturbance interception device and method |
| CN105490733A (en) * | 2015-12-28 | 2016-04-13 | 深圳市华讯方舟卫星通信有限公司 | Signal transceiver |
| CN112491459A (en) * | 2020-11-19 | 2021-03-12 | 成都迅翼卫通科技有限公司 | Vehicle-mounted satellite communication antenna feeder system and antenna kit for communication in motion |
Non-Patent Citations (1)
| Title |
|---|
| "卫星通信调制解调器新技术概述";范国江 等;《第十四届卫星通信学术年会论文集》;20180322;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113382462A (en) | 2021-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113382462B (en) | Multi-closed-loop power control system and control method suitable for satellite communication | |
| CN105607081B (en) | Blank pipe emergency management and rescue Beidou communication navigation integral system | |
| US7184491B2 (en) | Wireless communication apparatus | |
| US7508885B2 (en) | Digitally convertible radio | |
| US6157253A (en) | High efficiency power amplifier circuit with wide dynamic backoff range | |
| US4004224A (en) | Method for fade correction of communication transmission over directional radio paths | |
| CN205405926U (en) | Air traffic control emergency rescue big dipper communication navigation integration system | |
| CN105738929A (en) | Beido communication navigation integrated airborne terminal | |
| CN205665399U (en) | Low -power consumption big dipper communication navigation airborne terminal | |
| CN205539477U (en) | Big dipper communication navigation integration airborne terminal | |
| CN205405927U (en) | Airborne equipment based on big dipper satellite navigation | |
| CN100441006C (en) | Wireless base station and method for controlling gain of receiving channel | |
| US7171159B2 (en) | Transmission power control in a satellite communication system | |
| CN108880657B (en) | Frequency conversion forwarding device based on technology detection technology in air-based relay communication enhancement system | |
| CN114567369B (en) | Half-duplex data forwarding method and system for satellite Internet of things | |
| CN115865114A (en) | Multi-order self-adaptive signal large dynamic receiving method | |
| CN114268358A (en) | High-orbit remote sensing satellite data transmission system and method | |
| CN113938182A (en) | Navigation platform airborne module based on multi-network integration | |
| CN113131994A (en) | Integrated intelligent shipborne satellite communication system | |
| CN207339864U (en) | CORS Radio Data Systems | |
| CN101699771B (en) | Full-digital broadband microwave emitter and control method thereof | |
| CN115396006B (en) | Laser microwave hybrid inter-satellite link system | |
| CN114024557B (en) | Signal transmission method, signal access and coverage unit | |
| CN116073893B (en) | Load system and method for calibrating atmospheric transmission characteristics of multi-band millimeter wave signals | |
| KR100628741B1 (en) | Apparatus and method for digital combine multi carrier transmitter in mobile communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |