CN110769428A - Method and device for constructing virtual base station, base station and wireless network system - Google Patents
Method and device for constructing virtual base station, base station and wireless network system Download PDFInfo
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- CN110769428A CN110769428A CN201911156717.4A CN201911156717A CN110769428A CN 110769428 A CN110769428 A CN 110769428A CN 201911156717 A CN201911156717 A CN 201911156717A CN 110769428 A CN110769428 A CN 110769428A
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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
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/10—Dynamic resource partitioning
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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
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
Abstract
The embodiment of the invention relates to the technical field of communication, and discloses a method and a device for constructing a virtual base station, the base station and a wireless network system. The method for constructing the virtual base station comprises the following steps: acquiring wireless information of an environment where a base station is located; determining a first frequency band for the operation of the virtual base station according to the wireless information; and constructing the virtual base station according to the first frequency band, wherein the virtual base station is accessed to a core network through a return network. According to the embodiment, the constructed virtual base station is adapted to the surrounding wireless environment, the construction mode is simple and flexible, the applicability of the virtual base station is improved, the difficulty of base station construction addressing is reduced, and the construction cost of the virtual base station is reduced.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a method and a device for constructing a virtual base station, the base station and a wireless network system.
Background
Mobile communication networks have become a part of people's daily lives, not only have changed our lives, but with the application of 5G, our society will also be changed. The basis for all this is to provide network coverage with sufficient capacity through the network base stations. In many areas with dense crowds, such as shopping centers, airports, train stations, people have a great demand for networks. On the other hand, the wireless network is very difficult to address and build. How to deploy wireless networks in conjunction with the environment is a very hot research direction.
The inventors found that at least the following problems exist in the related art: in an area with dense crowds, people have very large requirements on a network, and the existing mainstream base station design is soft and hard integrated and customized for a specific network, and once deployment is completed, the base station can not be basically changed and has poor flexibility. And the wireless network addressing and the station building are very difficult, which results in poor network experience of users in densely populated areas.
Disclosure of Invention
The embodiment of the invention aims to provide a method, a device, a base station and a wireless network system for constructing a virtual base station, so that the constructed virtual base station is adaptive to the surrounding wireless environment, the construction mode is simple and flexible, the applicability of the virtual base station is improved, the difficulty in constructing and addressing the base station is reduced, and the construction cost of the virtual base station is reduced.
In order to solve the above technical problem, an embodiment of the present invention provides a method for constructing a virtual base station, including: acquiring wireless information of an environment where a base station is located; determining a first frequency band for the virtual base station to operate according to the wireless information; and constructing a virtual base station according to the first frequency band, wherein the virtual base station is accessed to the core network through a return network.
The embodiment of the present invention further provides a device for constructing a virtual base station, including: the device comprises an acquisition module, a first determination module and a first construction module; the acquisition module is used for acquiring wireless information of the environment where the base station is located; the first determining module is used for determining a first frequency band of the virtual base station according to the wireless information; the first building module is used for building a virtual base station according to the first frequency band, wherein the virtual base station is accessed to the core network through a backhaul network.
An embodiment of the present invention further provides a base station, including: the system comprises at least one processor, a plurality of antennas and a radio frequency unit ARU, wherein the antennas and the radio frequency unit ARU are connected with the processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions that are executable by the at least one processor to enable the at least one processor to perform the method of virtual base station construction described above.
An embodiment of the present invention further provides a wireless network system, including: a terminal and the base station; the terminal is in communication connection with the base station, and the base station is accessed to the core network through the return network, wherein the return network comprises a wired return network and a wireless return network, the wired return network is a wired network in the site environment of the base station, and the wireless return network consists of a return gateway, a wireless network and a return server which are sequentially connected.
Compared with the prior art, the method and the device have the advantages that the first frequency band for the operation of the virtual base station is determined according to the wireless information of the environment, and the virtual base station is constructed according to the first frequency band, so that the virtual base station which is suitable for the wireless environment can be constructed no matter what wireless environment the base station is in, and the flexibility of the virtual base station which is suitable for the surrounding wireless environment is improved; for example, when the wireless environment changes, the virtual base station suitable for the wireless environment can be reconstructed by re-determining the first frequency band, and the reconstruction of the virtual base station can be completed by using the existing equipment without re-laying the base station, so that the cost for constructing the virtual base station is further reduced; meanwhile, the core network is accessed through the return network, and the virtual base station is accessed into the core network without complex wiring, so that the difficulty in constructing, addressing and laying the virtual base station and the wiring volume are reduced.
In addition, the backhaul network includes: a wireless backhaul network and a wired backhaul network; the wireless return network consists of a return gateway, a wireless network and a return server which are connected in sequence; the wired backhaul network is a wired network in the site environment of the base station. A wired backhaul network and a wireless backhaul network are provided, so that the virtual base station can flexibly select to access the backhaul network according to actual needs.
In addition, the method for constructing the virtual base station further comprises the following steps: determining a second frequency band for the operation of the return gateway according to the wireless information; and constructing a backhaul gateway according to the second frequency band, wherein the virtual base station is in communication connection with the backhaul gateway. The second frequency band is determined through the wireless environment, so that the wireless environment cannot cause interference to the communication frequency band of the return gateway, and the communication quality of the return gateway is ensured.
In addition, before determining the second frequency band in which the backhaul gateway operates according to the wireless information, the method for constructing the virtual base station further includes: determining that no wired network exists in a site environment of a base station; or, an instruction to construct a backhaul gateway is received. The return network can also be a wired network in the site environment of the base station without constructing a return gateway; and when the wired network does not exist in the site environment of the base station, the virtual base station can be accessed to the core network through the wireless backhaul network, so that the construction of the backhaul gateway can be determined based on the site environment and can also be determined according to the instruction for constructing the backhaul gateway, and the flexibility for constructing the backhaul gateway is improved.
In addition, constructing a virtual base station according to the first frequency band specifically includes: selecting an antenna and a radio frequency unit ARU corresponding to the first frequency band as a first ARU according to the first frequency band; configuring a first parameter of a first application and a second parameter of a second application in the base station according to a first frequency band and a first ARU, wherein the first application, the second application and the first ARU form a virtual base station, the first application is used for processing a protocol stack and services above a radio link layer control protocol (RLC) layer and providing a return interface, and the second application is used for respectively processing protocols and real-time services corresponding to the RLC layer, a Medium Access Control (MAC) layer and a physical layer. The first parameters of the first application and the second parameters of the second application are configured through the first frequency band and the first ARU, so that the first application, the second application and the first ARU are matched to run, the function of the entity base station is realized, the virtual base station is constructed in a simple mode, and the complexity and construction cost for constructing the virtual base station are reduced.
In addition, if the number of the virtual base stations to be constructed is N, N is an integer greater than 0; determining a first frequency band in which the virtual base station operates according to the wireless information, specifically comprising: determining unused frequency bands in the environment where the base station is located according to the wireless information; and respectively selecting a first frequency band in which each virtual base station operates from the determined unused frequency bands. The virtual base stations can be constructed in multiple numbers, the first frequency bands corresponding to the virtual base stations are different from one another, and meanwhile the first frequency band in which each virtual base station operates does not belong to the frequency band used around, so that mutual interference during operation of each virtual base station is avoided, and the problem that the surrounding wireless environment interferes with each virtual base station is also avoided.
In addition, determining a second frequency band in which the backhaul gateway operates according to the wireless information specifically includes: determining unused frequency bands in the environment according to the wireless information; and selecting the lowest frequency band or the frequency band with the minimum interference from the determined unused frequency bands as the second frequency band. The lower the frequency band is, the better the propagation characteristic of the backhaul gateway is, the smaller the interference is, and the better the communication quality of the backhaul gateway is, so the minimum interference or the lowest frequency band is selected as the second frequency band, and the communication quality of the backhaul gateway is further ensured.
In addition, the base station comprises a plurality of antennas and a radio frequency unit ARU; constructing a backhaul gateway according to the second frequency band, specifically comprising: according to the second frequency band, selecting an ARU corresponding to the second frequency band as a second ARU; and configuring a third parameter of a third application in the base station according to the second frequency band and the second ARU, wherein the third application and the second ARU form a backhaul gateway, and the third application is used for executing a baseband function of the user equipment and an air interface protocol of the user equipment. And configuring a third parameter of the third application through the second frequency band and the second ARU, so that the third application and the second ARU are matched to run to form the backhaul gateway, the backhaul gateway is constructed in a simple manner, and the complexity and construction cost for constructing the backhaul gateway are reduced.
In addition, after the virtual base station is constructed and the backhaul gateway is constructed, the method for constructing the virtual base station further includes: and calling a backhaul application to connect the virtual base station and the backhaul gateway. The virtual base station and the backhaul gateway are connected through the backhaul application, so that the problem of data transmission between the virtual base station and the backhaul gateway is solved.
In addition, the number of backhaul gateways is multiple. Due to the fact that the plurality of backhaul gateways are arranged, a plurality of virtual base stations can be connected with the same backhaul gateway, and each virtual base station can be connected with one backhaul gateway, so that the virtual base stations can be flexibly connected with the backhaul gateways.
In addition, the method for constructing the virtual base station further comprises the following steps: if the wireless backhaul network with the fault is detected, the virtual base station connected with the wireless backhaul network with the fault is accessed to the normal wireless backhaul network again, so that the virtual base station is accessed to the core network. When a wireless backhaul network fails, the virtual base station is accessed into the normal wireless backhaul network again, so that the stability of the access core network is improved, and the network provided by the virtual base station is more stable.
In addition, the virtual base station is accessed to the core network through a wired network in the site environment of the base station; if the wired backhaul network is detected to be faulty and the normal wireless backhaul network is detected to exist, disconnecting the virtual base station from the faulty wired backhaul network, and reconnecting the virtual base station to the normal wireless backhaul network to enable the virtual base station to access the core network; or, if the wired backhaul network is detected to be faulty and the normal wireless backhaul network is not detected, disconnecting the virtual base station from the faulty wired backhaul network, reconstructing the normal wireless backhaul network, and connecting the virtual base station to the reconstructed normal wireless backhaul network, so that the virtual base station is accessed to the core network. By re-accessing the virtual base station to the normal wireless backhaul network, the stability of accessing to the core network is improved, so that the network provided by the virtual base station is more stable.
If a plurality of virtual base stations are constructed; reconstructing a normal wireless backhaul network specifically includes: acquiring a first frequency band of each virtual base station; selecting the lowest frequency band or the frequency band with the minimum interference from the plurality of first frequency bands as a new second frequency band; deconstructing a virtual base station corresponding to the new second frequency band, and taking a first ARU of the deconstructed virtual base station as a new second ARU; and reconfiguring a third parameter of a third application in the base station according to the new second frequency band and the new second ARU, reconfiguring the reconfigured third application and the new second ARU to form a new backhaul gateway, and reconfiguring the new backhaul gateway, the wireless network and the backhaul server to form a normal wireless backhaul network. Even if no high-quality frequency band is used as the second frequency band in the current wireless environment, the lowest frequency band or the frequency band with the minimum interference is selected from the first frequency bands of the virtual base station to be used as the new second frequency band by deconstructing the virtual base station, so that the transmission characteristic of the backhaul gateway is optimal, and the network quality of the wireless backhaul network is ensured.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a detailed flowchart of a method for constructing a virtual base station according to a first embodiment of the present invention;
fig. 2 is a detailed flowchart of a method for constructing a virtual base station according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a virtual base station and backhaul gateway according to a second embodiment of the present invention;
FIG. 4 is a schematic diagram of a communication architecture for backhaul network failure according to a second embodiment of the present invention;
fig. 5 is a schematic diagram of a communication architecture for a fault in a wired network according to a second embodiment of the present invention;
fig. 6 is a schematic structural diagram of an apparatus for constructing a virtual base station according to a third embodiment of the present invention;
fig. 7 is a schematic structural diagram of a base station according to a fourth embodiment of the present invention;
fig. 8 is a schematic structural diagram of a base station according to a fifth embodiment of the present invention;
fig. 9 is a schematic structural diagram of a wireless network system according to a sixth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.
The following embodiments are divided for convenience of description, and should not constitute any limitation to the specific implementation manner of the present invention, and the embodiments may be mutually incorporated and referred to without contradiction.
The inventor finds that the network in the dense crowd area is not good at present, and the use of the user is affected, and a common improvement mode is to add a base station in the dense crowd area, but the base station construction relates to the selection of addresses, and the base station cannot be flexibly established, so that the network quality in the area is improved. Although the present application mainly solves how to flexibly construct base stations in crowd-dense areas, the virtual base station method described in the present application can also solve the problem of flexibly constructing stations in any places where there is a need for constructing stations or where backhaul network resources are limited.
The first embodiment of the present invention relates to a method for constructing a virtual base station, which is applied to a base station, and the base station can be independently installed in a crowd-concentrated area such as a mall, an airport, a train station, and the like, or can be installed in other electronic devices having a receiving space, such as a container, a display cabinet, and the like. The specific flow of the method for constructing the virtual base station is shown in fig. 1.
Step 101: and acquiring wireless information of the environment in which the base station is positioned.
In particular, the base station may be in the form of a micro-station, which is convenient to install in a densely populated area. The wireless information of the environment in which the base station is located may include: information of frequency bands used in the environment. The wireless information can be manually collected and then input into the base station through the input device; the base station can also be provided with an acquisition module, and the acquisition module acquires wireless information of the surrounding environment so as to obtain the wireless information.
Step 102: and determining a first frequency band in which the virtual base station operates according to the wireless information.
In a specific implementation, the number of virtual base stations to be constructed may be predetermined, for example, the number of virtual base stations to be constructed may be determined according to the needs of an operator. The number of the virtual base stations to be constructed can be N, wherein N is an integer greater than 0; for example, operator a needs to deploy 2 virtual base stations, and operator B needs to deploy 1 virtual base station, so that the number of virtual base stations to be constructed is 3.
Determining unused frequency bands in the environment where the base station is located according to the wireless information; and respectively selecting a first frequency band in which each virtual base station operates from the determined unused frequency bands.
Specifically, in the base station, a base station scheduling program may be configured to perform the steps 101 to 103, and for facilitating understanding, the base station scheduling determines a frequency band used in an environment where the base station is located according to the wireless information, and takes a frequency band other than the frequency band used as a frequency band not used in the environment. In order to ensure that the virtual base stations do not interfere with each other in the operation process, the first frequency bands in which each virtual base station operates are different. And respectively selecting a first frequency band in which each virtual base station operates from the determined unused frequency bands. For example, the currently available frequency bands include a 2.6G frequency band, a 1.8G frequency band, and a 3.4G frequency band, and if it is determined that the unused frequency bands are the 2.6G frequency band and the 1.8G frequency band, the 2.6G frequency band may be selected as the first frequency band of the virtual base station a, and the 1.8G frequency band may be selected as the first frequency band of the virtual base station B.
Step 103: and constructing a virtual base station according to the first frequency band, wherein the virtual base station is accessed to the core network through a return network.
In a specific implementation, according to a first frequency band, selecting an antenna and a radio frequency unit (ARU) corresponding to the first frequency band as a first ARU; configuring a first parameter of a first application and a second parameter of a second application in the base station according to a first frequency band and a first ARU, wherein the first application, the second application and the first ARU form a virtual base station, the first application is used for processing a protocol stack and services above a radio link layer control protocol (RLC) layer and providing a return interface, and the second application is used for respectively processing protocols and real-time services corresponding to the RLC layer, a Medium Access Control (MAC) layer and a physical layer.
Specifically, the 5G network architecture can be divided into a Centralized Unit (CU), a Distributed Unit (DU), and an Antenna and Radio Unit (ARU). The entity bearer for implementing the CU function and the DU function may be the same device or different devices, and is not limited specifically. In this embodiment, the first application may be used to implement the CU function, and the second application may be used to implement the DU function.
The number of the ARUs is the same as that of the virtual base stations to be constructed, each virtual base station corresponds to one ARU, and if the number of the virtual base stations to be constructed is 1, the number of the ARUs is 1. And according to the first frequency band, selecting the ARU corresponding to the first frequency band as the first ARU. According to the first ARU and the first frequency band, a first parameter of the first application and a second parameter of the second application can be configured, so that the first application, the second application and the first ARU can be used in combination, namely the first application or the second application can control the first ARU to operate.
It should be noted that the operating frequency of the first ARU may be adjusted as needed, for example, if the first ARU operates in the 2.6G frequency band of 160M, the 2.6G frequency band of 100M may be selected as the first frequency band in which the virtual base station operates by adjusting the operating frequency.
It is understood that after the virtual base station is constructed, the virtual base station can access the core network through the backhaul network. The backhaul network may be a wired network in a site environment of the base station, for example, if a wired IP network exists in an environment where the site is located in a mall a, the wired IP network may be used as the backhaul network, and the virtual base station may access the wired IP network in a wiring manner, and further access a core network of a designated operator through the wired IP network.
Compared with the prior art, the method and the device have the advantages that the first frequency band for the operation of the virtual base station is determined according to the wireless information of the environment, and the virtual base station is constructed according to the first frequency band, so that the virtual base station which is suitable for the wireless environment can be constructed no matter what wireless environment the base station is in, and the flexibility of the virtual base station which is suitable for the surrounding wireless environment is improved; for example, when the wireless environment changes, the virtual base station suitable for the wireless environment can be reconstructed by re-determining the first frequency band, and the reconstruction of the virtual base station can be completed by using the existing equipment without re-laying the base station, so that the cost for constructing the virtual base station is further reduced; meanwhile, the core network is accessed through the return network, and the virtual base station is accessed into the core network without complex wiring, so that the difficulty of virtual wiring and the wiring volume are reduced.
The second embodiment of the invention relates to a method for constructing a virtual base station. The second embodiment is a further improvement of the first embodiment, and the main improvements are as follows: in a second embodiment of the present invention, a backhaul network comprises: a wireless backhaul network and a wired backhaul network; the wireless return network consists of a return gateway, a wireless network and a return server which are connected in sequence; the wired return network is a wired network in the site environment of the base station; the method for constructing the virtual base station further comprises constructing a backhaul gateway. The specific flow of the virtual base station construction method is shown in fig. 2.
Step 201: and acquiring wireless information of the environment in which the base station is positioned.
Step 202: and determining a first frequency band in which the virtual base station operates according to the wireless information.
Step 203: and constructing a virtual base station according to the first frequency band.
Step 204: and determining a second frequency band for the operation of the backhaul gateway according to the wireless information.
The backhaul network may include: the wired IP network can also be a wireless return network, and the wireless return network consists of a return gateway, a wireless network and a return server which are connected in sequence. The constructed virtual base station can carry out backhaul through a wired IP network and can also carry out backhaul through a wireless backhaul network. The wireless return network is connected with the return gateway, the wireless network can be the wireless network of a preselected operator, and is connected with the return server through the wireless network, the return server can be set by a base station provider, and the return server is connected with the core network of the operator.
Before step 204, it can be determined whether a backhaul gateway needs to be constructed. In a specific implementation, it may be determined whether a wired network exists in the site environment of the base station, and if the wired network exists, the wired network may be used as the backhaul network, or the wired network may not be used as the backhaul network, and if it is determined that the wired network does not exist in the site environment of the base station, it is determined that a wireless backhaul network needs to be constructed. In this embodiment, the address refers to a geographical address for establishing the base station.
In another specific implementation, it may be further determined whether an instruction for constructing a backhaul gateway is received, and if it is determined that the instruction for constructing the backhaul gateway is received, it is determined that a backhaul network needs to be constructed. The instruction for constructing the backhaul gateway may be sent to the base station by a terminal manually held by the base station, or may be manually input to the base station through an input end of the base station. The instruction for constructing the backhaul gateway may also be determined based on network deployment information of the operator, for example, the network deployment information of the operator 1 is input to the base station, and the instruction for constructing the backhaul gateway may be generated according to the network deployment information when the network deployment information indicates that the backhaul gateway needs to be constructed.
In a specific implementation, according to the wireless information, determining an unused frequency band in the environment; and selecting the lowest frequency band or the frequency band with the minimum interference from the determined unused frequency bands as the second frequency band. In order to avoid the problem of mutual interference between the constructed virtual base station and the backhaul gateway during operation and ensure the communication quality of the backhaul gateway, the second frequency band in which the backhaul gateway operates may be selected from the determined unused frequency bands. For example, the first frequency band is 3.4G and 3.5G, the used frequency band in the wireless information is 1.8G, and the unused frequency band is 2.6G; then the 2.6G band may be selected as the second band.
It should be noted that step 204 in this embodiment may also be executed after step 201, that is, after step 201 is executed, step 204 is executed, and after step 204, step 205 is executed; because the communication quality of the backhaul gateway is high, the second frequency band can be determined before the first frequency band is determined, and the lowest frequency band or the frequency band with the smallest interference is selected as the second frequency band.
Step 205: and constructing a backhaul gateway according to the second frequency band, wherein the virtual base station is in communication connection with the backhaul gateway.
In one specific implementation, the base station includes a plurality of antennas and a radio unit ARU. According to the second frequency band, selecting an ARU corresponding to the second frequency band as a second ARU; and configuring a third parameter of a third application in the base station according to the second frequency band and the second ARU, wherein the third application and the second ARU form a backhaul gateway, and the third application is used for executing a baseband function of the user equipment and an air interface protocol of the user equipment.
Specifically, the third application may be an application with backhaul function, and the third application is configured to implement a baseband function of the user equipment and an air interface protocol of the user equipment.
Step 206: and calling a backhaul application to connect the virtual base station and the backhaul gateway.
Specifically, a backhaul application is run on the hardware of the base station, which can invoke a protocol stack to implement data transmission between the virtual base station and the backhaul gateway. The first application and the third application mainly complete an air interface communication function, so direct communication cannot be realized, and the function of a protocol gateway is realized through a backhaul application, so that data transmission between the virtual base station and the backhaul gateway is realized.
The following describes the process of constructing the virtual base station and the backhaul gateway with reference to fig. 3.
For example, there are three operators in the market, namely operator 1, operator 2 and operator 3, and table 1 shows the operating frequency bands and bandwidths of the three operators.
TABLE 1
Two ARUs in a 2.6G frequency band, two ARUs in a 1.8G frequency band and one ARU in a 3.4G frequency band, a 3.5G frequency band and a 4.9G frequency band are installed on the base station.
If it is determined that the frequency bands are all unused frequency bands according to the wireless information, the 6 frequency bands in table 1 may be selected as first frequency bands of the 6 virtual base stations, respectively, and according to the first frequency bands and the wireless information, a 2.6G frequency band of 100MHz is selected as a second frequency band for operation. And combining the second ARU operating in the 2.6G frequency band of 100MHz with the backhaul application to form the backhaul gateway. The first ARU, the first application and the second application are combined to form a virtual base station, and in fig. 3, the first application is represented by a CU function module, the second application is represented by a DU function module, and the third application is represented by a backhaul module. In fig. 3, the dotted line indicates the trend of the data stream sent by the terminal, and the data stream sequentially passes through the virtual base station, the backhaul application, and the backhaul gateway to access the wireless network, the wireless network accesses each specified core network through the backhaul server, and the virtual base station of each operator can access the corresponding core network, for example, the virtual base station 1 is accessed to the core network 1, the virtual base station 2 is accessed to the core network 2, and the virtual base station 3 is accessed to the core network 3.
In a specific implementation, after the virtual base station is connected with the backhaul gateway, if a failed wireless backhaul network is detected, the virtual base station connected with the failed wireless backhaul network is re-accessed to the normal wireless backhaul network, so that the virtual base station is accessed to the core network.
Specifically, after detecting that there is a failed wireless backhaul network, it may also detect whether there is a normal wireless backhaul network in the current base station, and if there is a normal wireless backhaul network, it may directly reconnect the virtual base station connected to the failed wireless backhaul network to the normal wireless backhaul network. If no normal wireless backhaul network exists, the normal wireless backhaul network can be reconstructed, and the virtual base station connected with the failed wireless backhaul network is accessed to the reconstructed normal wireless backhaul network. It can be understood that, in the process of reconstructing the normal wireless backhaul network, if there are remaining ARUs in the base station, the normal wireless backhaul network may be reconstructed using the remaining ARUs, and if there are no remaining ARUs in the base station, the first frequency band of each virtual base station may be obtained; selecting the lowest frequency band or the frequency band with the minimum interference from the plurality of first frequency bands as a new second frequency band; deconstructing a virtual base station corresponding to the new second frequency band, and taking a first ARU of the deconstructed virtual base station as a new second ARU; and reconfiguring a third parameter of a third application in the base station according to the new second frequency band and the new second ARU, reconfiguring the reconfigured third application and the new second ARU to form a new backhaul gateway, and forming a normal wireless backhaul network by the new backhaul gateway, the wireless network and the backhaul server. Meanwhile, a new first frequency band can be reselected as a new first frequency band of the deconstructed virtual base station, a second ARU corresponding to the backhaul gateway of the failed wireless backhaul network is reselected as a new first ARU of the deconstructed virtual base station, and a new virtual base station is reconstructed by the new first frequency band and the new first ARU.
For example, as shown in fig. 4, the base station constructs 3 virtual base stations, which belong to operator 1, operator 2, and operator 3; each virtual base station is accessed to a core network through a wireless backhaul network; if the virtual base station 1 and the virtual base station 3 are respectively accessed to the core network through the corresponding backhaul networks, and when the wireless network in the backhaul network 1 is damaged and the wireless network in the backhaul network 3 is damaged, at this time, the virtual base station 1 and the virtual base station 3 can be connected to the same wireless backhaul network 2 again, and the core network is accessed through the wireless backhaul network 2, so that the network stability of the 3 virtual base stations is ensured, and meanwhile, the backhaul gateway corresponding to the virtual base station 1 and the backhaul gateway corresponding to the virtual base station 3 can be released, thereby saving communication resources.
In another implementation, if the virtual base station accesses the core network through a wired network in the site environment of the base station, if it is detected that the wired backhaul network fails and it is detected that a normal wireless backhaul network exists, the connection between the virtual base station and the failed wired backhaul network is disconnected, and the virtual base station is reconnected to the normal wireless backhaul network again, so that the virtual base station accesses the core network; or, if the wired backhaul network is detected to be faulty and the normal wireless backhaul network is not detected, disconnecting the virtual base station from the faulty wired backhaul network, reconstructing the normal wireless backhaul network, and connecting the virtual base station to the reconstructed normal wireless backhaul network, so that the virtual base station is accessed to the core network.
Specifically, if a plurality of virtual base stations are constructed; reconstructing a normal wireless backhaul network, specifically comprising the following steps: acquiring a first frequency band of each virtual base station; selecting the lowest frequency band or the frequency band with the minimum interference from the plurality of first frequency bands as a new second frequency band; deconstructing a virtual base station corresponding to the new second frequency band, and taking a first ARU of the deconstructed virtual base station as a new second ARU; and reconfiguring a third parameter of a third application in the base station according to the new second frequency band and the new second ARU, reconfiguring the reconfigured third application and the new second ARU to form a new backhaul gateway, and reconfiguring the new backhaul gateway, the wireless network and the backhaul server to form a normal wireless backhaul network.
For example, as shown in fig. 5, the base station constructs 3 virtual base stations, which belong to operator 1, operator 2, and operator 3; if the virtual base station 1 and the virtual base station 2 are respectively accessed to the core network through the corresponding wireless backhaul network, the virtual base station 3 is connected to the wired IP network of the operator 3 and accessed to the core network of the operator 3, and if the wireless network in the backhaul network 1 is damaged and the wired IP network of the operator 3 is damaged, then it is determined that a normal wireless backhaul network exists, and the virtual base station 1 and the virtual base station 3 can be reconnected to the same wireless backhaul network 2 and accessed to the core network through the wireless backhaul network 2. Thereby ensuring network availability of the 3 virtual base stations.
For another example, as shown in fig. 5, if the virtual base station 1 and the virtual base station 2 are each accessed to the core network through the corresponding wireless backhaul network, the virtual base station 3 is connected to the wired IP network of the operator 3 and is accessed to the core network of the operator 3, and if the wireless network in the backhaul network 1 is damaged, the wireless network in the backhaul network 2 is also damaged, and the wired IP network of the operator 3 is damaged, then the backhaul gateway may be reconstructed at this time; at this time, the respective first frequency bands of the virtual base station 1, the virtual base station 2 and the virtual base station 3 may be obtained, the frequency band with the minimum or the lowest interference is selected from the three first frequency bands to serve as a new second frequency band, it is assumed that the first frequency band of the virtual base station 3 is selected to serve as the new second frequency band, the virtual base station 3 may be deconstructed, the deconstructed first ARU of the virtual base station 3 serves as a new second ARU, the third parameter of the third application in the base station is configured according to the new second frequency band and the new second ARU, the normal backhaul gateway is recomposed by the reconfigured third application and the new second ARU, the normal backhaul gateway, the normal wireless network 3 is recomposed by the normal backhaul gateway, the wireless network and the backhaul server, the virtual base station 1 and the virtual base station 2 are connected to the same wireless backhaul network 3, and the core network is accessed through the wireless backhaul network 3. Two backhaul gateways of the failed backhaul network 1 and the failed backhaul network 2 can be deconstructed, two new virtual base stations are reconstructed by using the released ARU and frequency band, and after the reconfiguration, the base stations have 4 virtual base stations in total and one wireless backhaul network 3, thereby ensuring the network stability of the 4 virtual base stations, and at this time, the operator 3 does not have its own virtual base station and can provide services by means of its public network (commonly called "large network").
In the method for constructing the virtual base station provided by the embodiment, when a wireless network with a fault occurs, the virtual base station is re-accessed to a normal wireless backhaul network, so that the disaster tolerance of the access core network is improved.
The steps of the above methods are divided for clarity, and the implementation may be combined into one step or split some steps, and the steps are divided into multiple steps, so long as the same logical relationship is included, which are all within the protection scope of the present patent; it is within the scope of the patent to add insignificant modifications to the algorithms or processes or to introduce insignificant design changes to the core design without changing the algorithms or processes.
A third embodiment of the present invention relates to an apparatus for constructing a virtual base station, and a specific structure of the apparatus 30 is shown in fig. 6, and includes: an obtaining module 301, a first determining module 302 and a first constructing module 303. The obtaining module 301 is configured to obtain wireless information of an environment where a base station is located; the first determining module 302 is configured to determine a first frequency band in which the virtual base station operates according to the wireless information; the first constructing module 303 is configured to construct a virtual base station according to the first frequency band, where the virtual base station is accessed to the core network through the backhaul network.
It should be understood that this embodiment is an example of the apparatus corresponding to the first embodiment, and may be implemented in cooperation with the first embodiment. The related technical details mentioned in the first embodiment are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the first embodiment.
A fourth embodiment of the present invention relates to an apparatus for constructing a virtual base station, and the present embodiment is a further improvement of the third embodiment, and the main improvements are that: in this embodiment, the present invention further includes: a second determination module 304 and a second construction module 305; the specific structure of the apparatus 30 is shown in fig. 7, and the second determining module 304 is configured to determine, according to the wireless information, a second frequency band in which the backhaul gateway operates; the second constructing module 305 is configured to construct a backhaul gateway according to the second frequency band, wherein the virtual base station is communicatively connected to the backhaul gateway, and the backhaul network includes a wireless backhaul network composed of a backhaul gateway, a wireless network, and a backhaul server, which are sequentially connected.
It should be understood that this embodiment is an example of the apparatus corresponding to the second embodiment, and may be implemented in cooperation with the first embodiment. The related technical details mentioned in the first embodiment are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the first embodiment.
It should be noted that each module referred to in this embodiment is a logical module, and in practical applications, one logical unit may be one physical unit, may be a part of one physical unit, and may be implemented by a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, elements that are not so closely related to solving the technical problems proposed by the present invention are not introduced in the present embodiment, but this does not indicate that other elements are not present in the present embodiment.
A fifth embodiment of the present invention relates to a base station, which has a specific configuration as shown in fig. 8 and includes: at least one processor 401, a plurality of antennas and radio frequency units ARU (402 in FIG. 7) connected to the processor 401; and a memory 403 communicatively coupled to the at least one processor 401; the memory 403 stores instructions executable by the at least one processor 401, and the instructions are executed by the at least one processor 401, so that the at least one processor 401 can execute the method for constructing a virtual base station in the first embodiment or the second embodiment.
The memory 403 and the processor 401 are connected by a bus, which may include any number of interconnected buses and bridges that link one or more of the various circuits of the processor 401 and the memory 403. The bus may also link various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor is transmitted over a wireless medium via an antenna, which further receives the data and transmits the data to the processor.
The processor 401 is responsible for managing the bus and general processing and may provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And the memory may be used to store data used by the processor in performing operations.
A sixth embodiment of the present invention relates to a wireless network system having a configuration as shown in fig. 9, and including: a terminal and a base station in the fourth embodiment; the terminal is in communication connection with the base station, and the base station is accessed to the core network through the return network, wherein the return network comprises a wired return network and a wireless return network, the wired return network is a wired network in the site environment of the base station, and the wireless return network consists of a return gateway, a wireless network and a return server which are sequentially connected. Fig. 9 shows the case where the backhaul network is a wireless backhaul network.
The terminal may be a device having a function of transmitting a wireless signal, such as a mobile phone, a robot, a computer, etc.
Those skilled in the art can understand that all or part of the steps in the method of the foregoing embodiments may be implemented by a program to instruct related hardware, where the program is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, etc.) or a processor (processor) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (17)
1. A method for constructing a virtual base station is characterized by comprising the following steps:
acquiring wireless information of an environment where a base station is located;
determining a first frequency band for the operation of the virtual base station according to the wireless information;
and constructing the virtual base station according to the first frequency band, wherein the virtual base station is accessed to a core network through a return network.
2. The method of claim 1, wherein the backhaul network comprises: a wireless backhaul network and a wired backhaul network;
the wireless backhaul network consists of a backhaul gateway, a wireless network and a backhaul server which are connected in sequence;
the wired backhaul network is a wired network in a site environment of the base station.
3. The method for constructing a virtual base station according to claim 2, wherein the method for constructing a virtual base station further comprises:
determining a second frequency band for the operation of the backhaul gateway according to the wireless information;
and constructing the backhaul gateway according to the second frequency band, wherein the virtual base station is in communication connection with the backhaul gateway.
4. The method of claim 3, wherein before determining the second frequency band in which the backhaul gateway operates according to the wireless information, the method of constructing the virtual base station further comprises:
determining that a wired network does not exist in a site environment of the base station;
alternatively, the first and second electrodes may be,
and receiving an instruction for constructing the return gateway.
5. The method for constructing a virtual base station according to claim 1, wherein the constructing the virtual base station according to the first frequency band specifically includes:
selecting an antenna and a radio frequency unit (ARU) corresponding to the first frequency band as a first ARU according to the first frequency band;
configuring a first parameter of a first application and a second parameter of a second application in the base station according to the first frequency band and the first ARU, wherein the virtual base station is composed of the first application, the second application and the first ARU, the first application is used for processing a protocol stack and services above a radio link layer control protocol (RLC) layer and providing a return interface, and the second application is used for respectively processing protocols and real-time services corresponding to the RLC layer, a Medium Access Control (MAC) layer and a physical layer.
6. The method according to any of claims 1 to 5, wherein if the number of the virtual base stations to be constructed is N, N is an integer greater than 0;
the determining, according to the wireless information, a first frequency band in which the virtual base station operates specifically includes:
determining an unused frequency band in the environment where the base station is located according to the wireless information;
and respectively selecting a first frequency band in which each virtual base station operates from the determined unused frequency bands.
7. The method for constructing a virtual base station according to claim 3, wherein the determining the second frequency band in which the backhaul gateway operates according to the wireless information specifically includes:
determining unused frequency bands in the environment according to the wireless information;
and selecting the lowest frequency band or the frequency band with the minimum interference from the determined unused frequency bands as the second frequency band.
8. The method of claim 3, wherein the base station comprises a plurality of antennas and A Radio Unit (ARU);
the constructing the backhaul gateway according to the second frequency band specifically includes:
selecting the ARU corresponding to the second frequency band as a second ARU according to the second frequency band;
and configuring a third parameter of a third application in the base station according to the second frequency band and the second ARU, wherein the third application and the second ARU form the backhaul gateway, and the third application is used for executing a baseband function of user equipment and an air interface protocol of the user equipment.
9. The method according to any of claims 3 to 7, wherein after the virtual base station is constructed and the backhaul gateway is constructed, the method further comprises:
and calling a backhaul application to connect the virtual base station and the backhaul gateway.
10. The method of claim 4, wherein the number of backhaul gateways is plural.
11. The method for constructing a virtual base station according to any one of claims 2 to 10, wherein the method for constructing a virtual base station further comprises:
if the wireless backhaul network with the fault is detected, the virtual base station connected with the wireless backhaul network with the fault is accessed to the normal wireless backhaul network again, so that the virtual base station is accessed to the core network.
12. The method for constructing the virtual base station according to any one of claims 3 to 9, wherein the virtual base station accesses a core network through a wired network in a site environment of the base station;
the method for constructing the virtual base station further comprises the following steps:
if the wired backhaul network is detected to be faulty and the normal wireless backhaul network is detected to exist, disconnecting the virtual base station from the faulty wired backhaul network, and reconnecting the virtual base station to the normal wireless backhaul network to enable the virtual base station to access the core network;
or the like, or, alternatively,
if the wired backhaul network is detected to be faulty and the normal wireless backhaul network is not detected, disconnecting the virtual base station from the faulty wired backhaul network, reconstructing the normal wireless backhaul network, and connecting the virtual base station with the reconstructed normal wireless backhaul network, so that the virtual base station is accessed to the core network.
13. The method of claim 12, wherein if a plurality of virtual bss are constructed;
the reconstructing the normal wireless backhaul network specifically includes:
acquiring a first frequency band of each virtual base station;
selecting the lowest frequency band or the frequency band with the minimum interference from the plurality of first frequency bands as a new second frequency band;
deconstructing the virtual base station corresponding to the new second frequency band, and taking the first ARU of the deconstructed virtual base station as a new second ARU;
reconfiguring a third parameter of a third application in the base station according to the new second frequency band and the new second ARU, reconfiguring a new backhaul gateway by the reconfigured third application and the new second ARU, and reconfiguring a normal wireless backhaul network by the new backhaul gateway, the wireless network and the backhaul server.
14. An apparatus for virtual base station construction, comprising: the device comprises an acquisition module, a first determination module and a first construction module;
the acquisition module is used for acquiring wireless information of the environment where the base station is located;
the first determining module is used for determining a first frequency band of the virtual base station according to the wireless information;
the first building module is used for building the virtual base station according to the first frequency band, wherein the virtual base station is accessed to a core network through a backhaul network.
15. The apparatus for virtual base station construction according to claim 14, further comprising: a second determination module and a second construction module;
the second determining module is used for determining a second frequency band in which the backhaul gateway operates according to the wireless information;
the second building module is configured to build the backhaul gateway according to the second frequency band, where the virtual base station is in communication connection with the backhaul gateway, and the backhaul network includes a wireless backhaul network composed of a backhaul gateway, a wireless network, and a backhaul server, which are sequentially connected.
16. A base station, comprising:
at least one processor, a plurality of antennas and a radio frequency unit ARU connected with the processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of virtual base station construction according to any of claims 1-13.
17. A wireless network system, comprising: a terminal and a base station according to claim 14; the terminal is in communication connection with the base station, the base station is accessed to a core network through the return network, wherein the return network comprises a wired return network and a wireless return network, the wired return network is a wired network in a station address environment of the base station, and the wireless return network is composed of a return gateway, a wireless network and a return server which are sequentially connected.
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| PCT/CN2020/130185 WO2021098792A1 (en) | 2019-11-22 | 2020-11-19 | Virtual base station construction method and apparatus, base station and wireless network system |
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