CN115278521A - Wireless access method and system - Google Patents
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- CN115278521A CN115278521A CN202210824223.4A CN202210824223A CN115278521A CN 115278521 A CN115278521 A CN 115278521A CN 202210824223 A CN202210824223 A CN 202210824223A CN 115278521 A CN115278521 A CN 115278521A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
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- 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
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- 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
- H04W16/24—Cell structures
- H04W16/28—Cell structures using beam steering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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Abstract
The invention discloses a wireless access method and a system, wherein the method comprises the following steps: the remote station carries out network dynamic planning on each station to obtain network dynamic planning parameters corresponding to each station; the network dynamic planning parameters indicate that the site is a backbone site or a common site; the remote station sends the network dynamic planning parameters to each station, and simultaneously carries out directional beam coverage on the backbone stations; the backbone station tracks the directional beam to establish a backbone link between the backbone station and the remote station; and after receiving the network signal sent by the remote station based on the backbone link, the backbone station performs wireless network coverage on the common station. According to the technical scheme, the remote station carries out directional beam coverage on the station determined as the backbone station, the backbone station establishes a backbone link with the remote station based on the directional beam to realize network connection with the remote station, and the backbone station carries out wireless network coverage on the station determined as the common station to realize wireless access of the station with variable distribution.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a wireless access method and a wireless access system.
Background
With the rapid development of terrestrial mobile communication networks, the number of users, the types of mobile services, and the requirements for bandwidth and delay are also increasing correspondingly. The ground communication network is rapidly expanded from urban areas, villages and towns and other scenes to rural areas, mountainous areas, mining areas, islands, sea surfaces and other scenes. These scenarios usually have fewer sites and are distributed scattered, which is not suitable for terrestrial communication network construction, and are usually solved by adopting broadband wireless access technology.
In the prior art, a Mesh ad hoc network technology is generally adopted to access a station to a network. However, this technique needs to extend the coverage by multi-hop, and the communication quality is degraded after multi-hop, which makes it difficult to achieve wireless access to a remote station.
Disclosure of Invention
The invention provides a wireless access method, which is used for realizing wireless access of a dynamic site and improving communication quality.
In a first aspect, an embodiment of the present invention provides a wireless access method, including:
the remote station carries out network dynamic planning on each station to obtain network dynamic planning parameters corresponding to each station; the network dynamic planning parameter indicates that the site is a backbone site or a common site;
the remote station sends the network dynamic planning parameters to each station, and simultaneously performs directional beam coverage on the backbone stations;
the backbone site tracking the directional beam to establish a backbone link between the backbone site and the remote station;
and the backbone station receives the network signal sent by the remote station based on the backbone link and performs wireless network coverage on the common station based on the network signal.
The technical scheme of the embodiment of the invention provides a wireless access method, which comprises the following steps: the remote station carries out network dynamic planning on each station to obtain network dynamic planning parameters corresponding to each station; the network dynamic planning parameters indicate that the site is a backbone site or a common site; the remote station sends the network dynamic planning parameters to each station, and simultaneously covers the backbone stations with directional beams; the backbone site tracks the directional beam to establish a backbone link between the backbone site and the remote station; and the backbone site receives the network signal sent by the remote station based on the backbone link and performs wireless network coverage on the common site based on the network signal. According to the technical scheme, the remote station can dynamically plan the network of each station to determine that each station is a backbone station or a common station, and sends the network dynamic planning parameters to the backbone station and the common station, and meanwhile covers the directional beams of the backbone station, the backbone station can establish a backbone link between the backbone station and a multi-beam base station contained in the remote station based on the directional beams to realize network connection with the remote station based on the backbone link, and receives a network signal sent by the remote station based on the backbone link, so that the backbone station can cover the common station in a wireless network based on the network signal, the requirement of variable station distribution is met, and wireless access of each station is realized.
Further, before the remote station performs network dynamic planning on each station to obtain a network dynamic planning parameter corresponding to each station, the method further includes:
the station determines the position of each station based on the included first Beidou positioning module, and sends the position of the station and the network state to a network dynamic supervision platform of the remote station based on the included short wave data transmission module.
Further, the remote station performs network dynamic planning on each station to obtain a network dynamic planning parameter corresponding to each station, including:
and the network dynamic supervision platform of the remote station performs network dynamic planning on each station according to the station position and the network state of each station so as to determine the network dynamic planning parameters corresponding to each station.
Further, the network dynamic supervision platform of the remote station performs network dynamic planning on each station according to the station position and the network state of each station, so as to determine the network dynamic planning parameter corresponding to each station, including:
the network dynamic supervision platform of the remote station partitions each site according to the site position and the network state of each site;
and determining the site at the middle position in each area as the backbone site, and determining the sites at other positions as common sites.
Further, the remote station transmitting the network dynamic planning parameters to each of the stations includes:
the remote station sends the network dynamic planning parameters to each station based on a multi-spot beam base station;
correspondingly, before the remote station sends the network dynamic planning parameters to each of the stations, the method further includes:
and the multipoint wave beam base station of the remote terminal station determines the position of the base station based on the contained second Beidou positioning module and sends the position of the base station to the network dynamic supervision platform based on the contained short wave data transmission equipment.
Further, the sending, by the remote station, the network dynamic planning parameter to each of the sites, and performing directional beam coverage on the backbone site at the same time includes:
the remote station sends the network dynamic planning parameters to the common station based on short wave data transmission equipment contained in the multi-spot beam base station, and sends the network dynamic planning parameters and the base station position to the backbone station;
and the remote station carries out directional beam covering on the backbone station based on the beam forming antenna contained in the multi-spot beam base station.
Further, the backbone site tracking the directional beam to establish a backbone link between the backbone site and the remote station includes:
determining an initial alignment angle of an antenna unit included in the backbone site;
controlling the antenna unit to point to the initial alignment angle so that the antenna unit and the beam-forming antenna are roughly aligned, and establishing an initial link between the antenna unit and the beam-forming antenna based on the rough alignment;
the antenna unit receives a network signal sent by the beam forming antenna based on the initial link and carries out cone scanning on the initial alignment angle according to the strength of the network signal;
and adjusting the initial alignment angle according to the scanning result to obtain a target alignment angle, controlling the antenna unit to point to the target alignment angle so as to accurately align the antenna unit and the beam forming antenna, and establishing the backbone link between the antenna unit and the beam forming antenna based on the accurate alignment.
Further, determining an initial alignment angle of the antenna units included in the backbone site includes:
and performing attitude calculation according to the position information, the speed information and the angle information of the backbone site, attitude information of an antenna unit contained in the backbone site and the position of the base station, and determining the initial alignment angle of the antenna unit.
Further, after the remote station transmits the network dynamic planning parameters to each of the stations based on the multi-spot beam base station, the method further includes:
configuring the backbone sites based on the network dynamic planning parameters to construct backbone nodes based on the backbone sites, the backbone nodes including the backbone sites, a first local wireless coverage module and a sector site;
and configuring the common station based on the network dynamic planning parameters to construct a common node based on the common station, wherein the common node comprises the common station and a second local wireless coverage module.
Further, after receiving the network signal sent by the remote station based on the backbone link, the backbone station performs wireless network coverage on the common station, including:
establishing, within the backbone node, a network connection between the backbone station and the sector station based on the first local wireless coverage module;
after receiving the network signal sent by the remote station based on the backbone link, the backbone station sends the network signal to the sector station based on the first local wireless coverage module, so that a sector corresponding to the sector station is wirelessly covered based on sector antennas included in the sector station, and the common station located in the sector is wirelessly covered.
Further, after performing wireless network coverage on the common station, the method further includes:
and the common station performs wireless network coverage on a coverage range corresponding to the common station based on the included second local wireless coverage module.
Further, still include:
the remote station accesses a local network through an access network contained in the multi-spot beam base station, and determines a network signal corresponding to the remote station through a private network gateway contained in the multi-spot beam base station.
In a second aspect, an embodiment of the present invention further provides a wireless access system, including: a remote station and a station;
the remote station is used for performing network dynamic planning on each station to obtain network dynamic planning parameters corresponding to each station; the network dynamic planning parameters indicate that the site is a backbone site or a common site; sending the network dynamic planning parameters to each site, and simultaneously covering the backbone sites with directional beams;
the site is configured to track the directional beam based on the backbone site to establish a backbone link between the backbone site and the remote station; so that the backbone station receives the network signal sent by the remote station based on the backbone link and performs wireless network coverage on the common station based on the network signal.
For the description of the second aspect in the present application, reference may be made to the detailed description of the first aspect; in addition, for the beneficial effects described in the second aspect, reference may be made to the beneficial effect analysis of the first aspect, which is not described herein again.
These and other aspects of the present application will be more readily apparent from the following description.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a wireless access system according to an embodiment of the present invention;
fig. 2 is a flowchart of a wireless access method according to an embodiment of the present invention;
fig. 3 is a flowchart of another wireless access method according to an embodiment of the present invention;
fig. 4 is a flowchart of step 370 in another wireless access method according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating four groups of sector antennas spliced in another wireless access method according to an embodiment of the present invention;
fig. 6 is a schematic diagram of performing wireless coverage on a station in another wireless access method according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.
The terms "first" and "second" and the like in the description and drawings of the present application are used for distinguishing different objects or for distinguishing different processes for the same object, and are not used for describing a specific order of the objects.
Furthermore, the terms "including" and "having," and any variations thereof, as referred to in the description of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements recited, but may alternatively include other steps or elements not recited, or may alternatively include other steps or elements inherent to such process, method, article, or apparatus.
Before discussing exemplary embodiments in greater detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently, or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like. In addition, the embodiments and features of the embodiments in the present invention may be combined with each other without conflict.
It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described herein as "exemplary" or "such as" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present relevant concepts in a concrete fashion.
In the description of the present application, the meaning of "a plurality" means two or more unless otherwise specified.
Fig. 1 is a schematic diagram of a wireless access system according to an embodiment of the present invention, and as shown in fig. 1, the wireless access system may include a remote station and a station, where the station may be a backbone station or a common station. The remote station can comprise a network dynamic supervision platform and a multi-spot beam base station, and the multi-spot beam base station comprises a second Beidou positioning module, an access gateway, a private network gateway, short wave data transmission equipment and a beam forming antenna. When the site is a backbone site, a backbone node can be configured based on the backbone site, the backbone node comprises the backbone site, a first local wireless coverage module and a sector station, and the backbone site comprises a first Beidou positioning module, an antenna unit and a short wave data transmission module; when the station is a common station, the common node can be configured based on the common station, the common node comprises the common station and a second local wireless coverage module, and the common station comprises a first Beidou positioning module and a short wave data transmission module.
The radio access method proposed in the present application will be described in detail below with reference to the radio access system and various embodiments shown in fig. 1.
Fig. 2 is a flowchart of a wireless access method according to an embodiment of the present invention, where this embodiment is applicable to a situation that requires implementing wireless access of a dynamic station and improving communication quality, and the method may be executed by the wireless access system shown in fig. 1, as shown in fig. 2, the method specifically includes the following steps:
And the network dynamic planning parameters indicate that the site is a backbone site or a common site.
Specifically, the remote station may include a network dynamic supervision platform, and the network dynamic supervision platform may perform over-the-horizon network dynamic planning according to the location information of each station and the network state between the stations, and determine a network dynamic planning parameter corresponding to each station, where the network dynamic planning parameter may indicate that the station is a backbone station or a common station, and may also be used to configure each station as a backbone node or a common node. Specifically, the sites within a preset area range in the jurisdiction range of the remote station may be divided into one area, and the sites located at the middle position in the same area and connected to more other sites may be determined as backbone sites, and the other sites may be determined as normal sites.
The sites within each region may include a backbone site or may include a backbone site and at least one common site. For example, if a preset site is taken as a center and no other site exists in a preset area range, it may be determined that only one site exists in an area corresponding to the preset area range, and the site is determined as a backbone site.
It should be noted that, for dynamic sites, each site has the capability of being configured as a backbone site, and when a site location corresponding to a site changes, a backbone site may be determined as a normal site, and a normal site may also be determined as a backbone site.
In the embodiment of the invention, based on a network supervision platform contained in the remote station, the partitioning of the sites in the jurisdiction of the remote station is realized, the sites in each area are determined as backbone sites or common sites, and further, the determination of each site in the jurisdiction of the remote station as a backbone site or a common site is realized.
Specifically, the remote station may further include a multi-spot beam base station, the network dynamic monitoring platform may send the network dynamic planning parameter to the multi-spot beam base station, and the multi-spot beam base station may further send the dynamic planning parameter to each station. The multi-spot beam base station may include beamforming antennas to provide directional beam coverage for the backbone sites based on the beamforming antennas. Of course, when the multi-spot beam base station sends the dynamic planning parameter to the backbone site, the base station location of the multi-spot beam base station may also be sent to the backbone site.
In the embodiment of the invention, the remote station can send the network dynamic planning parameters to each station so as to configure each station based on the network dynamic planning parameters, and can also carry out directional beam coverage on the backbone station so as to provide a foundation for the backbone station to establish the backbone connection with the multipoint beam base station based on the directional beam.
Specifically, the backbone site may track the directional beam to establish a backbone link between the backbone site and the multi-spot beam base station based on the location information of the backbone site and the location information of the multi-spot beam base station in the remote station, that is, the backbone link between the backbone site and the remote station is established based on the site location and the base station location. The remote station may send a network signal based on the multi-spot beam base station, and the multi-spot beam base station may further send the network signal to the backbone site based on the backbone link, so that the backbone site is wirelessly accessed to the network, and further the backbone site may perform network coverage on a common site corresponding to the backbone site, so that the common site is also wirelessly accessed to the network.
In the embodiment of the invention, the backbone site establishes the backbone link between the antenna unit of the backbone node and the beam forming antenna of the multipoint beam base station by tracking the directional beam.
And 240, the backbone station receives the network signal sent by the remote station based on the backbone link, and performs wireless network coverage on the common station based on the network signal.
After the site is determined to be a backbone site, constructing a backbone node based on the backbone site, wherein the backbone node may include the backbone site, a first local wireless coverage module, and a sector station; after determining that the station is a normal station, a normal node may be constructed based on the normal station, and the normal node may include the normal station and a second local wireless coverage module.
Specifically, the multi-spot beam base station of the remote station may send a network signal sent by the local network to the remote station to the backbone site based on a backbone link between the multi-spot beam base station and the backbone site, the backbone site may establish a wired network connection with the sector station based on the first local wireless coverage module in the backbone site to which the backbone site belongs, and send the network signal to the sector station, and then the sector station may perform wireless network coverage on a sector corresponding to the sector station based on the network signal, thereby implementing wireless network coverage on a common site in the sector. The sector stations comprised by the backbone node may comprise at least one sector antenna, and one sector antenna may achieve a 90 ° coverage of the area network. Therefore, when the sector station comprises a sector antenna, 90-degree regional network coverage can be realized; when the sector station comprises two sector antennas, 180-degree area network coverage can be realized; when the sector station comprises three sector antennas, 270-degree regional network coverage can be realized; when the sector station comprises four sector antennas, 360-degree area network coverage can be realized.
In practical application, the number of sector antennas included in a sector station can be determined according to the distribution of backbone stations and common stations in an area, so that the sector station includes one, two, three or four sector antennas, and further the sector station can realize network coverage of 90 °, 180 °, 270 ° or 360 ° in the area, and further realize wireless network coverage of all common stations in the area.
In the embodiment of the invention, after the sites are partitioned, the sites in each area are determined as the backbone sites or the common sites, firstly, the wireless network coverage of each backbone site is realized based on the multipoint beam base station contained in the remote station, secondly, after the backbone nodes are constructed based on the backbone sites, the wireless network coverage of the common sites in the area is realized based on the sector stations in the backbone nodes, and further, the wireless access of all the sites is realized.
The embodiment of the invention provides a wireless access method, which comprises the following steps: the remote station carries out network dynamic planning on each station to obtain network dynamic planning parameters corresponding to each station; the network dynamic planning parameters indicate that the site is a backbone site or a common site; the remote station sends the network dynamic planning parameters to each station, and simultaneously performs directional beam coverage on the backbone stations; the backbone site tracking the directional beam to establish a backbone link between the backbone site and the remote station; and the backbone site receives the network signal sent by the remote station based on the backbone link and performs wireless network coverage on the common site based on the network signal. According to the technical scheme, the remote station can dynamically plan the network of each station in the jurisdiction range to determine that each station is a backbone station or a common station, the dynamic network planning parameters are sent to the backbone station and the common station, directional beam coverage is conducted on the backbone station, the backbone station can establish a backbone link between the backbone link and a multi-beam base station contained in the remote station based on the directional beam, network connection with the remote station is achieved based on the backbone link, a network signal sent by the remote station is received based on the backbone link, the backbone station can conduct wireless network coverage on the common station, the requirement of variable station distribution is met, and wireless access of each station is achieved.
Fig. 3 is a flowchart of another radio access method according to an embodiment of the present invention, which is embodied on the basis of the foregoing embodiment. As shown in fig. 3, in this embodiment, the method may further include:
and 310, the remote station accesses a local network through an access network contained in the multi-spot beam base station, and determines a network signal corresponding to the remote station through a private network gateway contained in the multi-spot beam base station.
The multipoint wave beam base station can comprise a second Beidou positioning module, an access gateway, a private network gateway, short wave data transmission equipment and a wave beam forming antenna.
In particular, the access gateway is used to access the wireless access system to a local network, for example, the wireless access system may be accessed to the local network using an ethernet interface or a TDM interface. The private network gateway is used for isolating the wireless access system from the local network to generate network signals in the wireless access system. Specifically, the remote station may access the remote station to the local network through an access network included in the multi-spot beam device, and may further access a wireless access system including the remote station to the local network, and the remote station may isolate the wireless access system from the local network through a dedicated gateway included in the multi-spot beam device to determine a network signal within the wireless access system, which may be used for network coverage of a station included in the wireless access system.
In addition, the private network gateway is also used for receiving, transmitting and processing network signals in the wireless access system and controlling a beam forming antenna.
In the embodiment of the invention, the remote station can access the network signal from the local network based on the access gateway and the private network gateway contained in the multi-spot beam base station, and determines the network signal in the wireless access system according to the network signal accessed in the local network to realize the access of the network signal.
And step 320, the multipoint wave beam base station of the remote station determines the position of the base station based on the contained second Beidou positioning module, and sends the position of the base station to the network dynamic supervision platform based on the contained short wave data transmission equipment.
The second Beidou positioning module can adopt Beidou precise positioning to determine the position information of the beam forming antenna and determine the position information as the position of the base station. The short wave data transmission equipment can be used for information transmission between the multipoint wave beam base station and the network dynamic supervision platform.
Specifically, the multi-spot beam base station can determine the base station position based on the second Beidou positioning module, and send the base station position to the network supervision platform based on the short wave data transmission equipment, so that the base station position is accurately calibrated, and the accurate pointing of the base station position is ensured.
In the embodiment of the invention, the second Beidou positioning module and the short wave data transmission equipment contained in the multipoint wave beam base station can be matched with each other, so that the network dynamic supervision platform receives the accurate base station position.
And step 330, the station determines the position of each station based on the included first Beidou positioning module, and sends the position of the station and the network state to a network dynamic supervision platform of the remote station based on the included short wave data transmission module.
Each site in the jurisdiction range of the remote station has the capability of constructing backbone nodes and comprises a first Beidou positioning module and a short wave data transmission module, wherein the first Beidou positioning module is used for determining the site position, and the short wave data transmission module is used for carrying out information transmission with a network dynamic supervision platform of the remote station so as to send site information to the network dynamic supervision platform of the remote station. The site information may include the site location and the network status of the site, which may be the network connectivity of the site with other sites.
Specifically, the station can determine the position of the station based on the first Beidou positioning module, and periodically transmit the position of the station and the network state of the station to a network dynamic supervision platform of a remote station based on the short wave data transmission module.
The short wave data transmission module can provide a low-cost and beyond-the-horizon communication scheme for information interaction between a remote station and a site, and is more stable and lower in cost compared with narrow-band satellite communication means such as Beidou short messages and skynet.
In the embodiment of the invention, the first Beidou positioning module can determine the site position in real time and send the site position to a network dynamic monitoring platform of the remote station in real time or periodically so that the remote station monitors the position change condition of each site and provides a data basis for network dynamic planning.
And the network dynamic planning parameter indicates that the site is a backbone site or a common site.
In one embodiment, step 340 may specifically include:
the network dynamic supervision platform of the remote station partitions each site according to the site position and the network state of each site; and determining the station at the middle position in each area as the backbone station, and determining the stations at other positions as common stations.
Specifically, the network dynamic supervision platform may divide each site into at least one area according to the site location and the network state of each site in the jurisdiction range of the remote station, and each area may include one backbone site and at least one common site, or may include only one backbone site. The backbone station can perform wireless network coverage on the common station, so that stations which are located at the middle position in the area and are connected with more other stations can be determined as the backbone station, and other stations in the area can be determined as the common stations.
As shown in fig. 1, each site in the jurisdiction of the remote station is divided into two areas, and each area includes a backbone site and four common sites. Of course, in practical applications, if there is a preset site far from other sites, the site may be divided into an area, and the site is determined as a backbone site.
In practical application, the network supervision platform is also used for completing user registration management, terminal communication control, service data query statistics and the like.
In the embodiment of the invention, the sites are partitioned based on a network supervision platform contained in the remote station, the sites in each area are determined as the backbone sites or the common sites, and the sites in the jurisdiction range of the remote station are further determined as the backbone sites or the common sites.
In one embodiment, step 350 may specifically include:
the remote station sends the network dynamic planning parameters to the common station based on short wave data transmission equipment contained in the multi-spot beam base station, and sends the network dynamic planning parameters and the base station position to the backbone station; and the remote station carries out directional beam covering on the backbone station based on the beam forming antenna contained in the multi-spot beam base station.
The beam forming antenna adopts a sub6G active phased array antenna system, works at 5.8GHz, is horizontally and vertically polarized, has a coverage range of +/-45 degrees, simultaneously adopts a micro-strip delay line and a switch to design a 4-bit phase shifter, realizes phase beam scanning control and is used for covering directional beams of all backbone sites according to the dynamic planning requirements of a network.
Specifically, after determining that the site is the backbone site, the network dynamic planning parameter and the base station position indicating that the site is the backbone site may be sent to the backbone site. After determining that the station is a normal station, the network dynamic planning parameter indicating that the station is a normal station may be sent to the normal station. Meanwhile, the remote station can also perform directional beam coverage on the backbone station based on the beam forming antennas included in the multipoint beam station.
In the embodiment of the invention, the multi-spot beam base station can send the network dynamic planning parameters to the backbone sites and the common sites based on the short wave data transmission equipment, so that the backbone sites and the common sites can construct the backbone nodes and the common nodes based on the network dynamic planning parameters.
The backbone node comprises the backbone site, a first local wireless coverage module and a sector site, and the common node comprises the common site and a second local wireless coverage module.
In practical applications, after a site is determined to be a backbone site, a backbone node may be constructed based on the backbone site, and after a site is determined to be a common site, a common node may be constructed based on the backbone site. Namely, after the remote station sends the network dynamic planning parameters to each station based on the multi-spot beam base station, the backbone nodes are constructed based on the backbone stations, and the common nodes are constructed based on the backbone stations.
In addition, a local wireless coverage module belonging to the same node is deployed and connected with a node station (backbone node or common node) in a wired mode to complete service data and protocol processing, and the local broadband network access is completed through a network port by completing the regional coverage of a peripheral wireless network through WiFi; according to different application scenes, the WiFI module can be configured and selected in different coverage ranges of 100 m-1000 m.
In the embodiment of the invention, the backbone nodes and the common nodes are respectively constructed based on the backbone sites and the common sites.
Specifically, the backbone site may track the directional beam to establish a backbone link between the backbone site and the multi-spot beam base station, that is, a backbone link between the backbone site and the remote site, based on the location information of the backbone site and the location information of the multi-spot beam base station in the remote site, that is, based on the site location and the base station location.
Fig. 4 is a flowchart of step 370 in another wireless access method according to an embodiment of the present invention, as shown in fig. 4, in an implementation manner, step 370 may specifically include:
The antenna unit can be loaded with a servo system, and the servo system realizes real-time accurate tracking of beams of the antenna unit of the backbone site and directional beams of a multi-spot beam base station in a remote station by adopting beam following control software of a tracking mechanism of low-cost MEMS inertial navigation, beidou, network planning parameter guidance and signal reference level, establishes reliable connection and completes wireless access of the backbone site.
The backbone station is used as a network relay node, and can meet the communication coverage requirement within 120km without multi-hop relay, thereby reducing the complexity of a wireless access system.
Further, step 3710 may specifically include:
and performing attitude calculation according to the position information, the speed information and the angle information of the backbone site, attitude information of an antenna unit contained in the backbone site and the position of the base station, and determining the initial alignment angle of the antenna unit.
Specifically, the servo system can acquire position information, speed information and angle information of a backbone station, attitude information of an antenna unit contained in the backbone station and a base station position, start two-axis (azimuth and elevation) stable control, and calculate an initial alignment angle of the antenna unit in a coordinate system corresponding to the backbone station through attitude calculation.
In practical applications, after the wireless access system starts operating, it is necessary to initialize the antenna units included in the backbone site, so that the beams of the antenna units point to the lowest point, and start a carrier receiver and other devices.
Specifically, the servo system may control the driving antenna unit to point to the initial alignment angle, so that the beam of the antenna unit points to the directional beam of the multi-spot beam base station, and the coarse alignment of the antenna unit and the beam forming unit is realized. Of course, after the coarse alignment is established, an initial link between the antenna unit and the beamforming antenna may be established, and then the beamforming unit may transmit the network signal to the antenna unit based on the initial link.
Because the antenna unit and the beam forming antenna are only roughly aligned, the strength of the network signal received by the antenna unit is weaker than that of the network signal sent by the beam forming unit. Therefore, the initial alignment angle needs to be calibrated, and the strength of the network signal received by the antenna unit is improved on the premise that the strength of the network signal sent by the beam forming unit is not changed.
Specifically, the servo system may enter an automatic tracking state, and a carrier detection module in the antenna unit may determine whether to perform cone scanning on the strength of the network signal received by the antenna. The antenna unit receives a network signal sent by a beam forming antenna based on an initial link, determines the strength of the network signal, and if the strength of the network signal received by the antenna unit is weaker than a preset strength, needs to calibrate an initial alignment angle to obtain an angle error.
Therefore, the servo system can perform cone scanning, determine the signal strength of network signals and perform fine alignment by changing the search radius of the cone scanning.
In practical application, if the conical scanning cannot track the network signal, the blind scanning mode is started to reacquire the network signal.
Specifically, the scanning result obtained after the cone scanning is finished may be the alignment angle of the antenna unit, and the initial alignment angle may be adjusted to the alignment angle included in the scanning result, that is, the target alignment angle may be determined. And then the driving antenna unit can be controlled to point at the target alignment angle, the antenna unit can be accurately aligned with the beam forming antenna, and a backbone link between the antenna unit and the beam forming antenna is established based on the accurate alignment.
The backbone link can be a directional high-gain communication link, the communication frequency band is a permitted frequency band of 5.8GHz, and the link throughput is not less than 300Mbps, so that the realization of high bandwidth and large capacity is supported, and the influence of a complex wireless environment on wireless communication is effectively solved.
In the backbone link, the site position and the network state reported by the backbone site, and various data and related instructions issued by the remote site can be transmitted by adopting a short wave data transmission module; the short wave data transmission module can realize over-the-horizon transmission interaction of information between a remote station and a station at low cost, and is convenient for completing accurate beam pointing and dynamic planning.
In the embodiment of the invention, the backbone site establishes the backbone link between the antenna unit of the backbone node and the beam forming antenna of the multipoint beam base station by tracking the directional beam.
And 380, after the backbone station receives the network signal sent by the remote station based on the backbone link, performing wireless network coverage on the common station.
In one embodiment, step 380 may specifically include:
establishing, within the backbone node, a network connection between the backbone station and the sector station based on the first local wireless coverage module; and after receiving the network signal sent by the remote station based on the backbone link, the backbone station sends the network signal to the sector station based on the first local wireless coverage module, so that the sector corresponding to the sector station is subjected to wireless network coverage based on the sector antenna included in the sector station, and the common station in the sector is subjected to wireless network coverage.
The sector station realizes radial 6km area coverage through a high-gain sector antenna with 90 degrees, the antenna gain is 18 +/-1 dBi, the standing wave is less than or equal to 2, the port isolation is greater than or equal to 30dB, the high front-to-back ratio performance of the antenna is realized through choke groove design, and the first null filling is realized through the weight of the cosecant square on the vertical surface. The sector station of the same node is arranged nearby the backbone station and is in wired connection with the backbone station, and the sector communication coverage with the radial distance of 5-6 km is completed through a sector antenna; and seamless coverage in a larger angle range or even 360 degrees can be realized by splicing a plurality of sector antennas.
Fig. 5 is a schematic diagram of splicing four groups of sector antennas in another wireless access method according to an embodiment of the present invention, and as shown in fig. 5, by splicing 4 groups of 90 ° high-gain sector antennas, it is possible to implement wireless network coverage without a blind area of 360 ° over 12 km.
In the embodiment of the invention, after the backbone site receives the network signal, the network signal can be sent to the sector site based on the first local wireless coverage module in the backbone node to which the backbone site belongs, and then the sector corresponding to the sector site is subjected to wireless network coverage based on the sector antenna contained in the sector site, so that the wireless network coverage of the common site in the sector is realized.
The common station is configured with a high-gain omnidirectional antenna for forming transceiving intercommunication with the high-gain sector antenna of the sector station.
Fig. 6 is a schematic diagram of wirelessly covering stations in another wireless access method according to an embodiment of the present invention, and as shown in fig. 6, in the wireless coverage diagram, backbone stations and normal stations are already determined according to station positions and network states of the stations, and backbone nodes are constructed based on the backbone stations and normal nodes are constructed based on the normal stations. Backbone sites in the backbone nodes can periodically send site positions and network states to the remote sites, the remote sites can send base station positions and network dynamic planning parameters to the backbone sites, and then the backbone sites can automatically track the remote sites and establish backbone links with the remote sites. Furthermore, a multi-spot beam base station included in the remote station can transmit the network signal to a backbone station through a backbone link, the backbone station can perform local network coverage in the backbone node, specifically, the network signal can be transmitted to a sector station based on a first local wireless coverage module, the sector station can complete 12km wireless network coverage based on a sector antenna, the network signal can be transmitted to a common station in a sector corresponding to the sector antenna based on the sector antenna, and then the common station can perform local network coverage in the common node, so as to realize wireless network coverage in the common node.
In the embodiment of the invention, based on the steps, all stations in the jurisdiction range of the remote station can be wirelessly accessed into the network, so that the wireless network coverage of all stations is realized.
Another wireless access method provided in an embodiment of the present invention includes: the remote station accesses a local network through an access network contained in the multi-spot beam base station and determines a network signal corresponding to the remote station through a private network gateway contained in the multi-spot beam base station; the multipoint wave beam base station of the remote terminal station determines the position of the base station based on the contained second Beidou positioning module and sends the position of the base station to the network dynamic supervision platform based on the contained short wave data transmission equipment; the station determines the position of each station based on the included first Beidou positioning module, and sends the position of the station and the network state to a network dynamic supervision platform of the remote station based on the included short wave data transmission module; the network dynamic supervision platform of the remote station performs network dynamic planning on each station according to the station position and the network state of each station so as to determine the network dynamic planning parameters corresponding to each station; the remote station sends the network dynamic planning parameters to each station based on a multipoint beam base station, and simultaneously performs directional beam coverage on the backbone stations; the backbone site tracks the directional beam to establish a backbone link between the backbone site and the remote station; configuring the backbone sites based on the network dynamic planning parameters to construct backbone nodes based on the backbone sites; configuring the common site based on the network dynamic planning parameters to construct common nodes based on the common site; and the backbone station carries out wireless network coverage on the common station after receiving the network signal sent by the remote station based on the backbone link. According to the technical scheme, the remote station can firstly access the local network and determine a network signal, the base station position of the contained multi-spot beam base station is determined, secondly, the station position and the network state sent by each station in the administration range can be received, dynamic network planning is carried out on each station based on the station position and the network state of each station, each station is determined to be a backbone station or a common station, dynamic network planning parameters are sent to the backbone station and the common station, directional beam covering is carried out on the backbone station, a backbone node can be constructed based on the backbone station, a common node is constructed based on the common station, the backbone station can establish a backbone link between the multi-spot beam base station contained in the remote station and the multi-spot beam base station contained in the remote station based on the directional beam, network connection with the remote station is achieved based on the backbone link, the backbone station can carry out wireless network covering on the common station in a sector based on sector stations in the backbone node, the common station carries out wireless network covering on the coverage range corresponding to the common station, the requirement of changeable distribution of the stations is met, and wireless access of each station is achieved.
Short wave data transmission is adopted to realize intelligent dynamic planning data over-the-horizon transmission interaction of a communication network, a Beidou positioning time service technology, an intelligent beam forming technology, a multipoint beam technology, a servo tracking technology and a sector covering splicing technology are combined, and the problem of mobile multi-site remote broadband wireless access of 120km relay, over 300Mbps of backbone links, 50Mbps of user links and less than 10ms of communication delay is solved. Solving the problem of parameter interaction of network dynamic planning based on Beidou positioning and short-wave beyond-the-horizon data transmission; realizing beam forming and simultaneous multi-point beam based on a beam forming antenna, solving the requirement of multi-site movement and variable distribution and keeping the network reliable and stable; the remote wireless broadband communication is realized based on the ground network instead of satellite communication, the cost is low, and the communication delay is small; based on the high-gain sector antenna and the monopole omnidirectional antenna technology, the coverage of the backbone nodes to the broadband wireless communication area within the range of 6km around is realized. The method and the device can provide a universal, reliable and economic solution for offshore visual range/beyond visual range wireless access, unmanned aerial vehicle wireless monitoring, highway broadband coverage, oilfield mine broadband coverage, scenic spot broadband coverage, forest fire prevention wireless broadband transmission, mountain area/island wireless relay and the like.
The embodiment of the invention also provides a wireless access system, which comprises a remote station and a site; the remote station is used for carrying out network dynamic planning on each station to obtain network dynamic planning parameters corresponding to each station; the network dynamic planning parameter indicates that the site is a backbone site or a common site; sending the network dynamic planning parameters to each website, and simultaneously performing directional beam coverage on the backbone website; the station is configured to track the directional beam based on the backbone station to establish a backbone link between the backbone station and the remote station; and enabling the backbone station to receive the network signal sent by the remote station based on the backbone link and perform wireless network coverage on the common station based on the network signal.
The system adopts the Beidou high-precision positioning and short-wave beyond-the-horizon transmission technology, and combines the intelligent beam forming technology, the multi-spot beam technology, the dynamic network planning technology, the sector covering and splicing technology and the wireless broadband communication system design to realize the remote broadband wireless access facing the grouping application requirements of dynamic multi-sites and group sites.
The wireless access system provided by the embodiment of the invention can execute the wireless access system provided by any embodiment of the invention, and has corresponding beneficial effects of the execution method.
In addition, the technical scheme of the invention conforms to the relevant regulations of national laws and regulations in terms of data acquisition, storage, use, processing and the like.
It is to be noted that the foregoing description is only exemplary of the invention and that the principles of the technology may be employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (13)
1. A wireless access method, comprising:
the remote station carries out network dynamic planning on each station to obtain network dynamic planning parameters corresponding to each station; the network dynamic planning parameters indicate that the site is a backbone site or a common site;
the remote station sends the network dynamic planning parameters to each station, and simultaneously performs directional beam coverage on the backbone stations;
the backbone site tracking the directional beam to establish a backbone link between the backbone site and the remote station;
and the backbone station carries out wireless network coverage on the common station after receiving the network signal sent by the remote station based on the backbone link.
2. The wireless access method according to claim 1, wherein before the remote station dynamically plans the network of each station to obtain the network dynamic planning parameters corresponding to each station, the method further comprises:
the station determines the position of each station based on the included first Beidou positioning module, and sends the position of the station and the network state to a network dynamic supervision platform of the remote station based on the included short wave data transmission module.
3. The wireless access method according to claim 2, wherein the remote station performs network dynamic planning on each station to obtain a network dynamic planning parameter corresponding to each station, and the method comprises:
and the network dynamic supervision platform of the remote station performs network dynamic planning on each station according to the station position and the network state of each station so as to determine the network dynamic planning parameters corresponding to each station.
4. The wireless access method according to claim 3, wherein the network dynamic supervision platform of the remote station dynamically plans the network of each station according to the station location and the network status of each station to determine the network dynamic planning parameters corresponding to each station, and includes:
the network dynamic supervision platform of the remote station partitions each site according to the site position and the network state of each site;
and determining the site at the middle position in each area as the backbone site, and determining the sites at other positions as common sites.
5. The wireless access method of claim 2, wherein said remote station transmitting said network dynamic planning parameters to each of said stations comprises:
the remote station transmits the network dynamic planning parameters to each station based on a multi-spot beam base station;
correspondingly, before the remote station sends the network dynamic planning parameters to each of the stations, the method further includes:
and the multi-spot beam base station of the remote station determines the position of the base station based on the included second Beidou positioning module and sends the position of the base station to the network dynamic supervision platform based on the included short wave data transmission equipment.
6. The wireless access method of claim 5, wherein the remote station sending the network dynamic planning parameters to each of the sites while performing directional beam coverage on the backbone site comprises:
the remote station sends the network dynamic planning parameters to the common station based on short wave data transmission equipment contained in the multi-spot beam base station, and sends the network dynamic planning parameters and the base station position to the backbone station;
and the remote station carries out directional beam covering on the backbone station based on the beam forming antenna contained in the multi-spot beam base station.
7. The wireless access method of claim 6, wherein the backbone site tracking the directional beam to establish a backbone link between the backbone site and the remote station comprises:
determining an initial alignment angle of an antenna unit included in the backbone site;
controlling the antenna unit to point to the initial alignment angle so that the antenna unit and the beam-forming antenna are roughly aligned, and establishing an initial link between the antenna unit and the beam-forming antenna based on the rough alignment;
the antenna unit receives a network signal sent by the beam forming antenna based on the initial link and carries out cone scanning on the initial alignment angle according to the strength of the network signal;
and adjusting the initial alignment angle according to the scanning result to obtain a target alignment angle, controlling the antenna unit to point to the target alignment angle so as to accurately align the antenna unit and the beam forming antenna, and establishing the backbone link between the antenna unit and the beam forming antenna based on the accurate alignment.
8. The wireless access method of claim 7, wherein determining an initial alignment angle of antenna units included in the backbone site comprises:
and performing attitude calculation according to the position information, the speed information and the angle information of the backbone site, attitude information of an antenna unit contained in the backbone site and the position of the base station, and determining the initial alignment angle of the antenna unit.
9. The wireless access method of claim 6, wherein after the remote station transmits the network dynamic planning parameters to each of the stations based on a multi-spot beam base station, further comprising:
configuring the backbone sites based on the network dynamic planning parameters to construct backbone nodes based on the backbone sites, the backbone nodes including the backbone sites, a first local wireless coverage module and a sector site;
and configuring the common station based on the network dynamic planning parameters to construct a common node based on the common station, wherein the common node comprises the common station and a second local wireless coverage module.
10. The wireless access method of claim 9, wherein the backbone station performs wireless network coverage on the common station after receiving the network signal transmitted by the remote station based on the backbone link, and the method comprises:
establishing, within the backbone node, a network connection between the backbone station and the sector station based on the first local wireless coverage module;
after receiving the network signal sent by the remote station based on the backbone link, the backbone station sends the network signal to the sector station based on the first local wireless coverage module, so that a sector corresponding to the sector station is wirelessly covered based on sector antennas included in the sector station, and the common station located in the sector is wirelessly covered.
11. The wireless access method according to claim 9, further comprising, after performing wireless network coverage on the normal station:
and the common station performs wireless network coverage on a coverage range corresponding to the common station based on the included second local wireless coverage module.
12. The wireless access method according to claim 5, further comprising:
the remote station accesses a local network through an access network contained in the multi-spot beam base station, and determines a network signal corresponding to the remote station through a private network gateway contained in the multi-spot beam base station.
13. A wireless access system, comprising: a remote station and a site;
the remote station is used for performing network dynamic planning on each station to obtain network dynamic planning parameters corresponding to each station; the network dynamic planning parameter indicates that the site is a backbone site or a common site; sending the network dynamic planning parameters to each website, and simultaneously performing directional beam coverage on the backbone website;
the station is configured to track the directional beam based on the backbone station to establish a backbone link between the backbone station and the remote station; so that the backbone station receives the network signal sent by the remote station based on the backbone link and performs wireless network coverage on the common station based on the network signal.
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