CN107708129B - Method and system for hybrid networking of wireless private power network - Google Patents
Method and system for hybrid networking of wireless private power network Download PDFInfo
- Publication number
- CN107708129B CN107708129B CN201710962417.XA CN201710962417A CN107708129B CN 107708129 B CN107708129 B CN 107708129B CN 201710962417 A CN201710962417 A CN 201710962417A CN 107708129 B CN107708129 B CN 107708129B
- Authority
- CN
- China
- Prior art keywords
- base station
- frequency band
- 230mhz
- macro base
- client terminal
- 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
- 230000006855 networking Effects 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000004891 communication Methods 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 238000002955 isolation Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a method and a system for hybrid networking of a wireless private network of electric power, wherein the method comprises the following steps: setting the working frequency band of a macro base station as a 1.8GHz frequency band, and setting the working frequency band of a micro base station as a 230MHz frequency band; and setting client terminal equipment, realizing communication connection between the macro base station and the micro base station according to the client terminal equipment, and executing conversion between a 230MHz frequency band and a 1.8GHz frequency band through the client terminal equipment. The method fully utilizes the characteristics of high bandwidth of 1.8GHz and deep coverage of 230MHz, and can effectively complete the coverage of a wireless signal blind area; the conversion between 1.8GHz and 230MHz is realized through the mixed CPE, and the conversion from high frequency to low frequency is realized; a networking mode suitable for power services is designed according to the frequency band characteristics, and the cost of a communication system is reduced to the greatest extent.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a method and a system for hybrid networking of a power wireless private network.
Background
The wireless communication technology is positioned to meet the conditions of wide coverage and node dispersion of various communication terminals, is widely applied to services such as power utilization information acquisition, power distribution automation, energy efficiency management, distributed energy access and mobile operation in the power field, simultaneously supports transmission of various high-bandwidth services such as video services, emergency rescue services, scheduling control services and the like, and can be popularized and developed in the power and other industrial fields. In order to meet the development requirements of the smart power grid, national power grid companies develop repeated research and practical verification on wireless communication networks with different frequency bands, which mainly comprise 230MHz and 1.8GHz power wireless private networks.
The 230MHz frequency band is mainly used by industries such as energy, army, weather, earthquake, water conservancy, ground and mining, light industry, construction and the like at present; the frequency points are discrete, and the power energy industry has 40 authorized frequency points, and is the industry with the most authorized frequency points. The transmission rate is 1.76Mbps, and the transmission distance is long, the power consumption is low, but the penetration capability is weak, and the rate is low.
LTE1.8G communication system, electric power can apply for 5MHz bandwidth, total bandwidth is 28Mbps, wherein the up-stream rate can reach 18Mbps, the down-stream rate can reach 10Mbps, the actual throughput rate is about 30%. The transmission rate is high, but the volume is large and the power consumption is high.
The 230MHz and 1.8GHz wireless communication system is composed of a core network, a base station, a terminal and a network manager. The core network is responsible for the transmission of service data and the control management of the access network; the access network provides radio coverage, access control for the terminal device, etc.
In terms of frequency spectrum, referring to fig. 1, the 230MHz frequency spectra are discrete, each being 25 KHz; the 1.8GHz spectrum is continuous 5 MHz. The 230MHz frequency spectrum has the characteristic of large transmission distance which is 5-6 times of 1.8GHz theoretically, but no matter which mode, the wireless signal coverage has a blind area. The same area is covered by 1.8GHz and 230MHz at the same time, and the problems of high construction cost and great operation and maintenance difficulty exist.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a method and a system for hybrid networking of a wireless power private network, so as to overcome the defect of high operation and maintenance difficulty of the conventional power networking mode.
The embodiment of the invention provides a method for hybrid networking of a wireless private network of electric power, which comprises the following steps: setting the working frequency band of a macro base station as a 1.8GHz frequency band, and setting the working frequency band of a micro base station as a 230MHz frequency band; and setting client terminal equipment, realizing communication connection between the macro base station and the micro base station according to the client terminal equipment, and executing conversion between a 230MHz frequency band and a 1.8GHz frequency band through the client terminal equipment.
In a possible implementation manner, the client terminal device is further configured to isolate the macro base station from the micro base station.
In one possible implementation, the method further includes: and accessing low-bandwidth equipment by using the micro base station, and accessing high-bandwidth equipment by using the macro base station.
Based on the same inventive concept, the embodiment of the present invention further provides a system for hybrid networking of wireless private power networks, including: a macro base station, a micro base station and a client terminal device; the working frequency band of the macro base station is a 1.8GHz frequency band, and the working frequency band of the micro base station is a 230MHz frequency band; the client terminal equipment is arranged between the macro base station and the micro base station, and is used for executing the conversion between the 230MHz frequency band and the 1.8GHz frequency band, so that the communication connection between the macro base station and the micro base station is realized.
In a possible implementation manner, an isolation filter is integrated inside the client terminal device, and the isolation filter is used for isolating the macro base station from the micro base station.
In one possible implementation, the isolation filter is a cavity filter.
In a possible implementation manner, the micro base station is configured to access a low bandwidth device, and the macro base station is configured to access a high bandwidth device.
The method and the system for hybrid networking of the electric wireless private network fully utilize the characteristics of high bandwidth of 1.8GHz and deep coverage of 230MHz, and can effectively complete coverage of a wireless signal blind area; the conversion between 1.8GHz and 230MHz is realized through the mixed CPE, and the conversion from high frequency to low frequency is realized; a networking mode suitable for power services is designed according to the frequency band characteristics, and the cost of a communication system is reduced to the greatest extent.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a diagram of a 230MHz spectrum of the prior art;
fig. 2 is a flowchart of a method for hybrid networking of wireless private networks according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a networking principle in an embodiment of the present invention;
fig. 4 is a block diagram of a system for hybrid networking of wireless private networks according to an embodiment of the present invention;
FIG. 5 is a diagram illustrating filter design criteria of the transceiver isolator according to an embodiment of the present invention.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, methods, means, elements well known to those skilled in the art have not been described in detail so as not to obscure the present invention.
According to an embodiment of the present invention, a method for hybrid networking of a wireless private network and a power wireless network is provided, and fig. 2 is a flowchart of the method, which specifically includes steps 101-102:
step 101: and setting the working frequency range of the macro base station as a 1.8GHz frequency range, and setting the working frequency range of the micro base station as a 230MHz frequency range.
In the networking mode provided by the embodiment of the invention, the macro base station works in a 1.8GHz frequency band, the micro base station works in a 230MHz frequency band, namely the 1.8GHz frequency band adopts the macro base station mode to cover a large area, the 230MHz frequency band adopts the micro base station mode to perform regional blind patching, the characteristics of high bandwidth of 1.8GHz and 230MHz deep coverage are fully utilized, and the coverage of a wireless signal blind area can be effectively completed.
Step 102: and setting client terminal equipment, realizing communication connection between the macro base station and the micro base station according to the client terminal equipment, and executing conversion between a 230MHz frequency band and a 1.8GHz frequency band through the client terminal equipment.
In the embodiment of the present invention, the macro base station and the micro base station are communicatively connected through a Customer Premises Equipment (CPE). Meanwhile, the micro base station is accessed to the low-bandwidth equipment, and the macro base station is accessed to the high-bandwidth equipment. The low-bandwidth equipment is accessed to LTE1.8G CPE terminals through LTE 230MHz micro base stations, and each micro base station can be accessed to 30 communication terminals; and terminal equipment with high bandwidth requirement is accessed to the 1.8GHz base station. The networking principle schematic diagram of the wireless communication system is shown in fig. 3, wherein a micro base station is not shown in fig. 3, a 230 terminal represents a low-bandwidth terminal, and an LTE1.8G base station represents a macro base station. In the embodiment of the invention, the low bandwidth represents that the bandwidth is less than a first preset bandwidth, and the high bandwidth represents that the bandwidth is greater than a second preset bandwidth; and the first preset bandwidth and the second preset bandwidth may be the same or different. Low bandwidth devices refer to devices requiring low speed transmission, which generally have low power consumption and small size, such as devices for transmitting power consumption information; high bandwidth devices refer to devices requiring high speed transmission, such as devices used to transmit video.
According to the method for hybrid networking of the electric wireless private network, provided by the embodiment of the invention, the characteristics of high bandwidth of 1.8GHz and deep coverage of 230MHz are fully utilized, and the coverage of a wireless signal blind area can be effectively finished; the conversion between 1.8GHz and 230MHz is realized through the mixed CPE, and the conversion from high frequency to low frequency is realized; a networking mode suitable for power services is designed according to the frequency band characteristics, and the cost of a communication system is reduced to the greatest extent.
On the basis of the above embodiments, the client terminal device provided in the embodiments of the present invention is further configured to isolate the macro base station from the micro base station. The isolation does not act to disconnect the transmission between the macro base station and the micro base station, but rather to reduce the impact between the macro base station and the micro base station.
Based on the same inventive concept, an embodiment of the present invention further provides a system for hybrid networking of wireless power private networks, as shown in fig. 4, including: a macro base station 41, a micro base station 42 and a client terminal device 43.
The working frequency band of the macro base station 41 is a 1.8GHz frequency band, and the working frequency band of the micro base station 42 is a 230MHz frequency band;
the Customer Premises Equipment (CPE) 43 is disposed between the macro base station 41 and the micro base station 42, and the customer premises equipment 43 is configured to perform conversion between a 230MHz frequency band and a 1.8GHz frequency band, so as to implement communication connection between the macro base station and the micro base station.
On the basis of the above embodiment, the isolation filter is integrated inside the client terminal device 43, and the isolation filter is used for isolating the macro base station from the micro base station.
In the embodiment of the invention, the CPE with the autonomous network function needs to have the capability of simultaneous receiving and transmitting, so the isolation between the receiving and transmitting channels refers to the anti-blocking index of a 230MHz and LTE1.8GHz system, the radio frequency power amplifier index of a base station in the system and the spatial isolation index between the receiving and transmitting antennas, and the CPE needs to be provided with a receiving and transmitting isolator with 50dB isolation. Referring to fig. 5, the filter design shown in fig. 5 is obtained using filter simulation software.
In the embodiment of the invention, the isolation filter is realized by adopting a cavity filter. Compared with filters with other properties, the cavity filter has the advantages of firm structure, stable and reliable performance, small volume, moderate quality factor Q value, far high-end parasitic passband and good heat dissipation performance, and can be used in occasions with higher power and frequency.
On the basis of the above embodiment, the micro base station is used for accessing the low bandwidth device, and the macro base station is used for accessing the high bandwidth device.
The system for hybrid networking of the electric wireless private network provided by the embodiment of the invention fully utilizes the characteristics of high bandwidth of 1.8GHz and deep coverage of 230MHz, and can effectively complete coverage of a wireless signal blind area; the conversion between 1.8GHz and 230MHz is realized through the mixed CPE, and the conversion from high frequency to low frequency is realized; a networking mode suitable for power services is designed according to the frequency band characteristics, and the cost of a communication system is reduced to the greatest extent.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (2)
1. A method for hybrid networking of wireless private networks of electric power is characterized by comprising the following steps:
setting the working frequency band of a macro base station as a 1.8GHz frequency band, and setting the working frequency band of a micro base station as a 230MHz frequency band; and
setting a client terminal device, realizing communication connection between the macro base station and the micro base station according to the client terminal device, and executing conversion between a 230MHz frequency band and a 1.8GHz frequency band through the client terminal device,
the isolation filter is integrated in the client terminal equipment and is also used for isolating the macro base station from the micro base station, wherein the isolation filter is a cavity filter;
and accessing low-bandwidth equipment by using the micro base station and accessing high-bandwidth equipment by using the macro base station.
2. A system for hybrid networking of wireless private power networks, comprising: a macro base station, a micro base station and a client terminal device;
the working frequency band of the macro base station is a 1.8GHz frequency band, and the working frequency band of the micro base station is a 230MHz frequency band;
the client terminal equipment is arranged between the macro base station and the micro base station, and is used for executing the conversion between a 230MHz frequency band and a 1.8GHz frequency band to realize the communication connection between the macro base station and the micro base station;
an isolation filter is integrated in the client terminal equipment and used for isolating the macro base station from the micro base station, wherein the isolation filter is a cavity filter;
the micro base station is used for accessing low-bandwidth equipment, and the macro base station is used for accessing high-bandwidth equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710962417.XA CN107708129B (en) | 2017-10-17 | 2017-10-17 | Method and system for hybrid networking of wireless private power network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710962417.XA CN107708129B (en) | 2017-10-17 | 2017-10-17 | Method and system for hybrid networking of wireless private power network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107708129A CN107708129A (en) | 2018-02-16 |
| CN107708129B true CN107708129B (en) | 2021-03-26 |
Family
ID=61185167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710962417.XA Active CN107708129B (en) | 2017-10-17 | 2017-10-17 | Method and system for hybrid networking of wireless private power network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107708129B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108632828B (en) * | 2018-05-10 | 2023-09-22 | 国家电网公司 | Base station for distinguishing core networks with different frequency bands and processing method thereof |
| CN108600032A (en) * | 2018-05-10 | 2018-09-28 | 国家电网公司 | The network management of multiband equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1518393A (en) * | 2003-01-28 | 2004-08-04 | 埃沃列姆公司 | Channel switching method of CDMA mobile radio system and base station of CDMA mobile radio system |
| CN101106422A (en) * | 2007-08-02 | 2008-01-16 | 重庆重邮信科（集团）股份有限公司 | Terminal synchronization method and device for TD-SCDMA system repeater |
| CN103428727A (en) * | 2012-05-14 | 2013-12-04 | 中兴通讯股份有限公司 | Method and system for detecting UE approaching micro base station |
| CN106911366A (en) * | 2015-12-22 | 2017-06-30 | 华为技术有限公司 | Wireless communications method and device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2011043411A1 (en) * | 2009-10-07 | 2013-03-04 | 住友電気工業株式会社 | Base station equipment |
| WO2011143815A1 (en) * | 2010-05-19 | 2011-11-24 | Huawei Technologies Co., Ltd. | Multi-band handover via an adaptive handover threshold |
| CN102104392B (en) * | 2010-12-15 | 2013-10-09 | 华为技术有限公司 | Multi-band multi-channel transceiving device and method as well as base station system |
| US9351190B2 (en) * | 2012-10-15 | 2016-05-24 | Headwater Partners LLC | Interference characterization based on scheduling a transmission mode |
| CN105101427B (en) * | 2014-05-20 | 2018-10-09 | 重庆邮电大学 | A kind of resource allocation methods and device of carrier aggregation system |
| CN105515621B (en) * | 2014-09-25 | 2018-12-04 | 北京信威通信技术股份有限公司 | Multiband multi-antenna base station device and multiband conversion method |
-
2017
- 2017-10-17 CN CN201710962417.XA patent/CN107708129B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1518393A (en) * | 2003-01-28 | 2004-08-04 | 埃沃列姆公司 | Channel switching method of CDMA mobile radio system and base station of CDMA mobile radio system |
| CN101106422A (en) * | 2007-08-02 | 2008-01-16 | 重庆重邮信科（集团）股份有限公司 | Terminal synchronization method and device for TD-SCDMA system repeater |
| CN103428727A (en) * | 2012-05-14 | 2013-12-04 | 中兴通讯股份有限公司 | Method and system for detecting UE approaching micro base station |
| CN106911366A (en) * | 2015-12-22 | 2017-06-30 | 华为技术有限公司 | Wireless communications method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107708129A (en) | 2018-02-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Gozalvez | 5G worldwide developments [mobile radio] | |
| CN103313259B (en) | The relaying emergent radio data communication framework of low latitude balloon load | |
| EP4250624A3 (en) | Communication method and apparatus using beamforming in wireless communication system | |
| CN107708129B (en) | Method and system for hybrid networking of wireless private power network | |
| CN104955055B (en) | Method and apparatus for determining and planning wireless network deployment adequacy when using based on vehicles relay node | |
| Gözde et al. | 4G/LTE technology for smart grid communication infrastructure | |
| CN106162945A (en) | Honeycomb base station device and data transmission method, communication equipment and communication system | |
| CN201904781U (en) | WiFi (wireless fidelity) base station antenna system capable of supplying non-interfering channels simultaneously | |
| CN107172709B (en) | A kind of wireless dummy resource management and allocation method based on junction network | |
| CN103634808B (en) | Radio Network System | |
| CN103580766B (en) | Frequency control method of heterogeneous station type of multi-frequency TDMA (time division multiple access) satellite communication system | |
| CN105472544B (en) | A kind of wireless discrete narrow band spectrum aggregating CPE terminal for supporting wifi to access | |
| CN102651873B (en) | Signal transmission method, system and equipment for indoor distribution system | |
| CN106912056A (en) | A kind of 230MHz micro-base stations and its network-building method | |
| Jia et al. | LTE wireless private network planning in electric power system | |
| Almantheri et al. | TV white space (TVWS) trial in Oman: Phase one (Technical) | |
| CN107889165A (en) | Mobile substation free wireless public LTE network scheduling termination high-speed communication system and method | |
| CN103702363A (en) | Method for compressing signals from frequencies and downlink signal compressing system | |
| CN109769253A (en) | A kind of indoor communications covering system | |
| CN103561409A (en) | Spectrum leasing method in hierarchical cellular network | |
| CN107690132B (en) | LTE230 communication quality optimization method | |
| CN108111572B (en) | Data transmission system and method | |
| CN202889638U (en) | Electric power emergency communication network system | |
| Arias et al. | Performance of advanced metering infrastructure using cellular communication based on uplink CDMA | |
| Fawal et al. | CTMC modeling for M2M/H2H coexistence in a NB-IoT adaptive eNodeB |
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 |