WO2021098792A1

WO2021098792A1 - Virtual base station construction method and apparatus, base station and wireless network system

Info

Publication number: WO2021098792A1
Application number: PCT/CN2020/130185
Authority: WO
Inventors: 黄晓庆
Original assignee: 深圳前海达闼云端智能科技有限公司
Priority date: 2019-11-22
Filing date: 2020-11-19
Publication date: 2021-05-27
Also published as: CN110769428B; CN110769428A

Abstract

Embodiments of the present application relate to the field of communication technology, disclose a virtual base station construction method and apparatus, a base station and a wireless network system. The virtual base station construction method in the present application comprises: acquiring wireless information of an environment where a base station is located; determining, according to the wireless information, a first frequency band in which a virtual base station operates; and constructing the virtual base station according to the first frequency band, wherein the virtual base station accesses a core network by means of a backhaul network. The present embodiment enables a constructed virtual base station to adapt to a surrounding wireless environment. The construction method is simple and flexible, improving the applicability of the virtual base station, reducing the difficulty in constructing and addressing the base station, and reducing construction costs of the virtual base station.

Description

Method, device, base station and wireless network system for constructing virtual base station

Cross-references to related applications

This application is filed based on a Chinese patent application with an application number of 201911156717.4 and an application date of November 22, 2019, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated into this application by way of introduction.

Technical field

The embodiments of the present application relate to the field of communication technologies, and in particular, to a method, device, base station, and wireless network system for constructing a virtual base station.

Background technique

Mobile communication networks have become a part of people’s daily lives, not only changing our lives, but with the application of 5G, it will also change our society. The basis of all this is to provide network coverage with sufficient capacity through network base stations. In many densely populated areas, such as shopping centers, airports, and railway stations, people have a great demand for the Internet. On the other hand, wireless network addressing and station establishment are very difficult. How to deploy wireless networks in combination with the environment is a very popular research direction.

The inventor found that there are at least the following problems in related technologies: in densely populated areas, people’s demand for networks is very large, and the existing mainstream base station designs are software and hardware integration, customized for specific networks, once the deployment is completed, basically Cannot be changed, and flexibility is poor. In addition, wireless network addressing and station establishment are very difficult, which leads to poor network experience for users in densely populated areas.

Summary of the invention

The purpose of the embodiments of this application is to provide a method, device, base station and wireless network system for constructing a virtual base station, so that the constructed virtual base station is compatible with the surrounding wireless environment, the construction method is simple and flexible, and the applicability of the virtual base station is improved. It reduces the difficulty of addressing base station construction and reduces the cost of virtual base station construction.

In order to solve the above technical problems, the embodiments of the present application provide a method for constructing a virtual base station, including: acquiring wireless information of the environment in which the base station is located; determining the first frequency band in which the virtual base station operates according to the wireless information; constructing according to the first frequency band The virtual base station, where the virtual base station accesses the core network through the backhaul network.

The embodiment of the present application also provides an apparatus for constructing a virtual base station, including: an acquisition module, a first determination module, and a first construction module; the acquisition module is used to acquire wireless information of the environment in which the base station is located; the first determination module is used to According to the wireless information, the first frequency band in which the virtual base station operates is determined; the first construction module is used to construct the virtual base station according to the first frequency band, wherein the virtual base station accesses the core network through the backhaul network.

The embodiment of the present application also provides a base station, including: at least one processor, multiple antennas and radio frequency units ARU connected to the processor; and a memory communicatively connected to the at least one processor; wherein the memory may store The instructions are executed by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can execute the aforementioned method for constructing a virtual base station.

The embodiment of the present application also provides a wireless network system, including: a terminal and the above-mentioned base station; the terminal is in communication connection with the base station, and the base station accesses the core network through a backhaul network. The backhaul network includes a wired backhaul network and a wireless network. The backhaul network, the wired backhaul network is a wired network in the site environment of the base station, and the wireless backhaul network consists of a backhaul gateway, a wireless network, and a backhaul server connected in sequence.

Compared with the prior art, the implementation of this application determines the first frequency band in which the virtual base station operates according to the wireless information of the environment, and constructs the virtual base station according to the first frequency band, so that no matter what wireless environment the base station is in, A virtual base station that adapts to the wireless environment can be constructed, which improves the flexibility of the virtual base station to adapt to the surrounding wireless environment; for example, when the wireless environment changes, the first frequency band can be re-determined to reconstruct the wireless environment. The virtual base station does not need to be re-arranged, and the existing equipment can be used to complete the reconstruction of the virtual base station, which further reduces the cost of constructing the virtual base station. At the same time, it is connected to the core network through the backhaul network, because there is no need to go through complicated wiring. The virtual base station is connected to the core network, reducing the difficulty of addressing and laying out the virtual base station and the volume of wiring.

In addition, the backhaul network includes: 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 that are connected in sequence; the wired backhaul network is a wired network in the site environment of the base station. The internet. A wired backhaul network and a wireless backhaul network are provided, so that the virtual base station can flexibly choose to access the backhaul network according to actual needs.

In addition, the method for constructing a virtual base station further includes: determining a second frequency band in which the backhaul gateway operates according to 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 by the wireless environment, so that the wireless environment will not cause interference to the communication frequency band of the backhaul gateway, and the communication quality of the backhaul 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 there is no wired network in the site environment of the base station; or receiving an instruction to construct the backhaul gateway. Since the backhaul network can also be a wired network in the site environment of the base station, there is no need to construct a backhaul gateway; and when there is no wired network in the site environment of the base station, the virtual base station can access the core network through the wireless backhaul network Therefore, the construction of the backhaul gateway can be determined based on the site environment, and can also be determined according to the instructions for constructing the backhaul gateway, which improves the flexibility of constructing the backhaul gateway.

In addition, constructing a virtual base station according to the first frequency band specifically includes: according to the first frequency band, selecting the antenna and radio frequency unit ARU corresponding to the first frequency band as the first ARU; according to the first frequency band and the first ARU, configuring the first application in the base station The first parameter of and the second parameter of the second application, the virtual base station is composed of the first application, the second application, and the first ARU. The first application is used to process the protocol stack and services above the RLC layer of the radio link layer control protocol, It also provides a backhaul interface. The second application is used to process the respective protocols and real-time services corresponding to the RLC layer, the medium access control MAC layer, and the physical layer. Through the first frequency band and the first ARU, the first parameter of the first application and the second parameter of the second application are configured, so that the first application, the second application, and the first ARU can work together to realize the function of the physical base station. A simple way to construct a virtual base station reduces the complexity and construction cost of constructing a virtual base station.

In addition, if the number of virtual base stations to be constructed is N, N is an integer greater than 0; according to wireless information, determining the first frequency band that the virtual base station operates includes: according to wireless information, determining that the environment where the base station is located is not used The frequency band of each virtual base station is selected from the determined unused frequency bands. Multiple virtual base stations can be constructed, and the first frequency band corresponding to each virtual base station is different from each other. At the same time, the first frequency band that each virtual base station runs does not belong to the surrounding frequency bands, so as to avoid mutual interference when each virtual base station is running. It also avoids the problem of the surrounding wireless environment interfering with each virtual base station.

In addition, according to the wireless information, determining the second frequency band that the backhaul gateway operates includes: determining the unused frequency band in the environment according to the wireless information; selecting the lowest frequency band or the least interference from the determined unused frequency bands The frequency band is used as the second frequency band. Since the lower the frequency band, the better the propagation characteristics of the backhaul gateway, the smaller the interference, and the better the communication quality of the backhaul gateway. Therefore, the minimum interference or the lowest frequency band is selected as the second frequency band to further ensure the communication quality of the backhaul gateway.

In addition, the base station includes multiple antennas and radio frequency unit ARUs; constructing a backhaul gateway according to the second frequency band specifically includes: according to the second frequency band, selecting the ARU corresponding to the second frequency band as the second ARU; according to the second frequency band and the second ARU , Configure the third parameter of the third application in the base station. The third application and the second ARU form the backhaul gateway. The third application is used to execute the baseband function of the user equipment and the air interface protocol of the user equipment. Through the second frequency band and the second ARU, configure the third parameters of the third application, so that the third application and the second ARU work together to form a backhaul gateway, so that the backhaul gateway can be constructed in a simple way, reducing the number of backhauls. The complexity and construction cost of the gateway.

In addition, after constructing the virtual base station and constructing the backhaul gateway, the method for constructing the virtual base station further includes: calling the backhaul application to connect the virtual base station and the backhaul gateway. The backhaul application connects the virtual base station and the backhaul gateway, which solves the problem of data transmission between the virtual base station and the backhaul gateway.

In addition, the number of backhaul gateways is multiple. Since there are multiple backhaul gateways, multiple virtual base stations can be connected to the same backhaul gateway, and each virtual base station can be connected to a backhaul gateway, so that the virtual base stations can connect to the backhaul gateway flexibly.

In addition, the method for constructing a virtual base station also includes: if a faulty wireless backhaul network is detected, reconnect the virtual base station connected to the faulty wireless backhaul network to the normal wireless backhaul network, so that the virtual base station can access Core Network. When a faulty wireless backhaul network occurs, by reconnecting the virtual base station to the normal wireless backhaul network, the stability of access to the core network is improved, and the network provided by the virtual base station is more stable.

In addition, the virtual base station is connected to the core network through the wired network in the site environment of the base station; if a fault in the wired backhaul network is detected and a normal wireless backhaul network is detected, the virtual base station is disconnected from the failed wired backhaul Connection between networks, reconnecting the virtual base station to the normal wireless backhaul network, so that the virtual base station can access the core network;

Or, if the wired backhaul network is detected to be faulty and the normal wireless backhaul network is not detected, the connection between the virtual base station and the failed wired backhaul network will be disconnected, the normal wireless backhaul network will be rebuilt, and the virtual The base station is connected to the reconstructed normal wireless backhaul network, so that the virtual base station is connected to the core network. By reconnecting the virtual base station to the normal wireless backhaul network, the stability of access to the core network is improved, and the network provided by the virtual base station is more stable.

If multiple virtual base stations are constructed; reconstruct a normal wireless backhaul network, which specifically includes: obtain the first frequency band of each virtual base station; select the lowest frequency band or the frequency band with the least interference from the multiple first frequency bands as the new first frequency band Two frequency bands; deconstruct the virtual base station corresponding to the new second frequency band, and use the first ARU of the deconstructed virtual base station as the new second ARU; reconfigure the third application in the base station according to the new second frequency band and the new second ARU The third parameter of, the reconfigured third application and the new second ARU reconstitute a new backhaul gateway, and the new backhaul gateway, wireless network and backhaul server reconstitute a normal wireless backhaul network. Even if there is no high-quality frequency band as the second frequency band in the current wireless environment, the virtual base station can be deconstructed, and the lowest frequency band or the frequency band with the least interference from the first frequency band of the virtual base station can be selected as the new second frequency band to ensure the backhaul of the gateway. The best propagation characteristics ensure the network quality of the wireless backhaul network.

Description of the drawings

One or more embodiments are exemplified by the pictures in the corresponding drawings. These exemplified descriptions do not constitute a limitation on the embodiments. The elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the attached drawings do not constitute a scale limitation.

Fig. 1 is a specific flowchart of a method for constructing a virtual base station according to the first embodiment of the present application;

FIG. 2 is a specific flowchart of a method for constructing a virtual base station according to the second embodiment of the present application;

FIG. 3 is a schematic diagram of the structure of a virtual base station and a backhaul gateway according to the second embodiment of the present application;

4 is a schematic diagram of a communication architecture for backhauling network failures according to the second embodiment of the present application;

FIG. 5 is a schematic diagram of a communication architecture for a wired network failure according to the second embodiment of the present application;

FIG. 6 is a schematic diagram of a specific structure of a device for constructing a virtual base station according to the third embodiment of the present application;

FIG. 7 is a schematic structural diagram of a base station according to the fourth embodiment of the present application;

FIG. 8 is a schematic structural diagram of a base station provided according to the fifth embodiment of the present application;

Fig. 9 is a schematic structural diagram of a wireless network system provided according to the sixth embodiment of the present application.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the various embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. However, a person of ordinary skill in the art can understand that in each embodiment of the present application, many technical details are proposed for the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solution claimed in this application can be realized.

The following divisions of the various embodiments are for convenience of description, and should not constitute any limitation on the specific implementation of the present application, and the various embodiments may be combined with each other without contradiction.

The inventor found that the current network in densely populated areas is not good, which affects the use of users. The usual improvement method is to add base stations in the densely populated areas. However, the construction of base stations involves the selection of addresses, and the establishment of base stations cannot be flexibly established. Regional network quality. Although this application mainly solves how to flexibly build base stations in densely populated areas, the virtual base station method described in this application can also solve the problem of flexible site construction in places where there is a need for site construction or where backhaul network resources are limited.

The first embodiment of the application relates to a method for constructing a virtual base station. The method for constructing a virtual base station is applied to a base station. The base station can be installed independently in crowded areas such as shopping malls, airports, railway stations, etc. In the electronic equipment of the space, for example, containers, exhibition cabinets and other equipment. The specific process of the method for constructing the virtual base station is shown in FIG. 1.

Step 101: Acquire wireless information of the environment where the base station is located.

Specifically, the base station can be established in the form of a micro-station, which is convenient for installation in crowded areas. 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 an input device; a collection module can also be set on the base station, and the collection module can collect wireless information of the surrounding environment to obtain wireless information.

Step 102: Determine the first frequency band operated by the virtual base station according to the wireless information.

In a specific implementation, the number of virtual base stations to be constructed can be determined in advance. For example, the number of virtual base stations to be constructed can be determined according to the requirements of the operator. The number of virtual base stations to be constructed can be N, where 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, then the number of virtual base stations to be constructed is Three.

According to the wireless information, determine the unused frequency band in the environment where the base station is located; select the first frequency band that each virtual base station operates separately from the determined unused frequency bands.

Specifically, in the base station, a base station scheduling program can be set to execute the steps 101 to 103. For ease of understanding, the base station scheduling determines the frequency bands that have been used in the environment where the base station is located based on wireless information, The frequency bands other than the used frequency bands are regarded as the unused frequency bands in the environment. In order to ensure that each virtual base station does not interfere with each other during operation, the first frequency band that each virtual base station operates is different. The first frequency band in which each virtual base station operates is selected from the determined unused frequency bands. For example, currently available frequency bands include 2.6G frequency band, 1.8G frequency band and 3.4G frequency band. If it is determined that the unused frequency bands are 2.6G frequency band and 1.8G frequency band, then 2.6G frequency band can be selected as the first frequency band of virtual base station A. , The 1.8G frequency band can be selected as the first frequency band of the virtual base station B.

Step 103: Construct a virtual base station according to the first frequency band, where the virtual base station accesses the core network through the backhaul network.

In a specific implementation, according to the first frequency band, the antenna and radio unit ARU corresponding to the first frequency band are selected as the first ARU; according to the first frequency band and the first ARU, the first parameters and second parameters of the first application in the base station are configured. The second parameter of the application is composed of the first application, the second application and the first ARU to form a virtual base station. The first application is used to process the protocol stack and services above the RLC layer of the radio link layer control protocol and provide a backhaul interface. The second application is used to process the respective protocols and real-time services of the RLC layer, the medium access control MAC layer, and the physical layer.

Specifically, the 5G network architecture can be divided into a centralized unit (Centralized Unit, referred to as "CU"), a distributed unit (Distributed Unit, referred to as "DU"), and an antenna and radio unit (Antenna and Radio Unit, referred to as "ARU"). ). The physical carrier that implements the CU function and the DU function may be the same device or different devices, and there is no specific limitation. 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 ARUs is the same as the number of virtual base stations to be constructed, and each virtual base station corresponds to one ARU. If the number of virtual base stations to be constructed is one, the number of ARUs is one. According to the first frequency band, the ARU corresponding to the first frequency band is selected as the first ARU. According to the first ARU and the first frequency band, the first parameter of the first application and the 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, that is, the first application or the second application The second application can control the operation of the first ARU.

It should be noted that the working frequency of the first ARU can be adjusted as needed. For example, if the first ARU works in the 2.6G frequency band of 160M, the working frequency can be adjusted to select the 2.6G frequency band of 100M as the virtual base station operation. The first frequency band.

It is understandable that after the construction of the virtual base station is completed, the virtual base station can access the core network through the backhaul network. The backhaul network can be a wired network in the site environment of the base station. For example, if there is a wired IP network in the environment where the site is located at mall A, the wired IP network can be used as a backhaul network, and the virtual base station can be wired Access the wired IP network, and then access the core network of the designated operator through the wired IP network.

Compared with the prior art, the implementation of this application determines the first frequency band in which the virtual base station operates according to the wireless information of the environment, and constructs the virtual base station according to the first frequency band, so that no matter what wireless environment the base station is in, A virtual base station that adapts to the wireless environment can be constructed, which improves the flexibility of the virtual base station to adapt to the surrounding wireless environment; for example, when the wireless environment changes, the first frequency band can be re-determined to reconstruct the wireless environment. The virtual base station does not need to be re-arranged, and the existing equipment can be used to complete the reconstruction of the virtual base station, which further reduces the cost of constructing the virtual base station. At the same time, it is connected to the core network through the backhaul network, because there is no need to go through complicated wiring. The virtual base station is connected to the core network, reducing the difficulty of virtual deployment and the volume of wiring.

The second embodiment of the present application relates to a method for constructing a virtual base station. The second embodiment is a further improvement of the first embodiment. The main improvement lies in the following: in the second embodiment of this application, the backhaul network includes: a wireless backhaul network and a wired backhaul network; the wireless backhaul network is connected in sequence The wired backhaul network is a wired network in the site environment of the base station; the method for constructing the virtual base station also includes constructing a backhaul gateway. The specific process of the virtual base station construction method is shown in Figure 2.

Step 201: Acquire wireless information of the environment where the base station is located.

Step 202: Determine the first frequency band operated by the virtual base station according to the wireless information.

Step 203: Construct a virtual base station according to the first frequency band.

Step 204: Determine the second frequency band operated by the backhaul gateway according to the wireless information.

The backhaul network may include: a wired IP network, or a wireless backhaul network, which is composed of a backhaul gateway, a wireless network, and a backhaul server that are sequentially connected. The constructed virtual base station can be backhauled through a wired IP network, or it can be backhauled through a wireless backhaul network. The backhaul gateway in the wireless backhaul network is connected to the wireless network. The wireless network can be a wireless network of a pre-selected operator. It is connected to the backhaul server through the wireless network. The backhaul server can be set by the base station provider. The transmission server accesses the operator’s core network.

Before step 204, it can be determined whether a backhaul gateway needs to be constructed. In a specific implementation, it can be judged whether there is a wired network in the site environment of the base station. If it exists, the wired network can be used as the backhaul network, or the wired network can not be used as the backhaul network. If the station of the base station is determined If there is no wired network in the site environment, it is determined that a wireless backhaul network needs to be constructed. The site address in this embodiment refers to the geographic address where the base station is established.

In another specific implementation, it can also be determined whether an instruction to construct a backhaul gateway is received, and if it is determined that an instruction to construct a backhaul gateway is received, it is determined that a backhaul network needs to be constructed. The instruction for constructing the backhaul gateway may be manually sent to the base station by a terminal held manually, or the instruction for constructing the backhaul gateway may be manually input to the base station through the input terminal of the base station. The instruction for constructing the backhaul gateway may also be determined based on the operator’s network deployment information. For example, the network deployment information of operator 1 is input to the base station, and the network deployment information indicates that the backhaul gateway needs to be constructed, then the network deployment information can be determined based on the network deployment information. The network deployment information generates instructions for constructing a backhaul gateway.

In a specific implementation, the unused frequency band in the environment is determined according to wireless information; the lowest frequency band or the frequency band with the least interference is selected from the determined unused frequency band as the second frequency band. In order to avoid the problem of mutual interference during the operation of the constructed virtual base station and the backhaul gateway, and to ensure the communication quality of the backhaul gateway, the second frequency band in which the backhaul gateway operates can 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 wireless information is 1.8G, and the unused frequency band is 2.6G; then the 2.6G frequency band can be selected as the second frequency band.

It is worth mentioning that step 204 in this embodiment can also be performed after step 201, that is, after step 201 is performed, step 204 is performed, and step 205 is performed after step 204; since the communication quality of the backhaul gateway is high, it can be Before determining the first frequency band, first determine the second frequency band, and select the lowest frequency band or the frequency band with the least interference as the second frequency band. Because the lower the frequency band, the better the propagation characteristics of the backhaul gateway, and the smaller the interference, the communication quality of the backhaul gateway. The better, so the least interference or the lowest frequency band is selected as the second frequency band, which can further ensure the network quality of the backhaul gateway.

Step 205: Construct a backhaul gateway according to the second frequency band, where the virtual base station is in communication connection with the backhaul gateway.

In a specific implementation, the base station includes multiple antennas and radio frequency units ARUs. According to the second frequency band, select the ARU corresponding to the second frequency band as the second ARU; according to the second frequency band and the second ARU, configure the third parameter of the third application in the base station, and the third application and the second ARU form the backhaul gateway , The third application is used to execute the baseband function of the user equipment and the air interface protocol of the user equipment.

Specifically, the third application may be an application with a backhaul function, and the third application is used to complete the baseband function of the user equipment and the air interface protocol of the user equipment.

Step 206: Invoke the backhaul application to connect the virtual base station and the backhaul gateway.

Specifically, the backhaul application is run on the hardware of the base station, and the backhaul application can call the protocol stack to implement data transmission between the virtual base station and the backhaul gateway. Since the first application and the third application mainly complete the air interface communication function, they cannot communicate directly. The function of the protocol gateway is realized through the backhaul application, thereby realizing the data transmission between the virtual base station and the backhaul gateway.

The process of constructing a virtual base station and constructing a backhaul gateway is described below in conjunction with FIG. 3.

For example, there are three operators in the current market, namely Operator 1, Operator 2, and Operator 3. Table 1 shows the working frequency bands and bandwidths of the three operators.

Table 1

The base station is equipped with two ARUs each in the 2.6G frequency band, two ARUs in the 1.8G frequency band, and one ARU in the 3.4G, 3.5G, and 4.9G frequency bands.

If it is determined based on the wireless information that the above frequency bands are all unused frequency bands, then the 6 frequency bands in Table 1 can be selected as the first frequency bands of the 6 virtual base stations. According to the first frequency band and wireless information, the 2.6G frequency band of 100MHz is selected as the operating frequency. The second frequency band. Combine the second ARU running in the 2.6G frequency band of 100MHz and the backhaul application to form a backhaul gateway. The first ARU, the first application, and the second application form a virtual base station. 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. The dashed line in Figure 3 shows the direction of the data stream sent by the terminal. The wireless network is connected to the wireless network through the virtual base station, the backhaul application, and the backhaul gateway in turn. The wireless network accesses each designated core network through the backhaul server. The virtual base station can access the corresponding core network, for example, the virtual base station 1 accesses the core network 1, the virtual base station 2 accesses the core network 2, and the virtual base station 3 accesses the core network 3.

In a specific implementation, after the virtual base station is connected to the backhaul gateway, if a faulty wireless backhaul network is detected, the virtual base station connected to the failed wireless backhaul network is reconnected to the normal wireless backhaul network. So that the virtual base station is connected to the core network.

Specifically, if a faulty wireless backhaul network is detected, it can also detect whether the current base station has a normal wireless backhaul network. If there is a normal wireless backhaul network, it can directly connect to the faulty wireless backhaul network. The connected virtual base station reconnects to the normal wireless backhaul network. If there is no normal wireless backhaul network, a normal wireless backhaul network can be rebuilt, and the virtual base station connected to the failed wireless backhaul network can be connected to the reconstructed normal wireless backhaul network. It is understandable that in the process of rebuilding the normal wireless backhaul network, if there are remaining ARUs in the base station, the remaining ARUs can be used to rebuild the normal wireless backhaul network. If there are no remaining ARUs in the base station, then The first frequency band of each virtual base station can be obtained; the lowest frequency band or the frequency band with the least interference from the multiple first frequency bands is selected as the new second frequency band; the virtual base station corresponding to the new second frequency band is deconstructed, and the deconstructed virtual base station The first ARU is used as the new second ARU; according to the new second frequency band and the new second ARU, the third parameter of the third application in the base station is reconfigured, and the reconfigured third application and the new second ARU are reconfigured A new backhaul gateway is formed, and a normal wireless backhaul network is formed by the new backhaul gateway, wireless network and backhaul server. At the same time, the new first frequency band can be re-selected as the new first frequency band of the deconstructed virtual base station, and the second ARU corresponding to the backhaul gateway of the failed wireless backhaul network can be re-used as the new first frequency band of the deconstructed virtual base station. For an ARU, a new virtual base station is reconstructed from the new first frequency band and the new first ARU.

For example, as shown in Figure 4, the base station has constructed 3 virtual base stations, which belong to operator 1, operator 2, and operator 3. Each virtual base station is connected to the core network through a wireless backhaul network; if virtual base station 1 And the virtual base station 3 each access the core network through the corresponding backhaul network. When the wireless network in the backhaul network 1 is damaged, and the wireless network in the backhaul network 3 is damaged, then at this time, you can reconnect the virtual base station 1 and The virtual base station 3 is connected to the same wireless backhaul network 2, and accesses the core network through the wireless backhaul network 2, thus ensuring the network stability of the three virtual base stations. At the same time, it can release the backhaul gateway corresponding to the virtual base station 1. And release the backhaul gateway corresponding to the virtual base station 3 to save communication resources.

In another implementation, if the virtual base station accesses the core network through the wired network in the site environment of the base station, if the wired backhaul network is detected to be faulty and a normal wireless backhaul network is detected, the virtual base station is disconnected from the core network. For the connection between the faulty wired backhaul networks, reconnect the virtual base station to the normal wireless backhaul network so that the virtual base station is connected to the core network; or, if the wired backhaul network is detected to be faulty and the normal wireless backhaul network is not detected Wireless backhaul network, disconnect the connection between the virtual base station and the faulty wired backhaul network, rebuild the normal wireless backhaul network, and connect the virtual base station to the reconstructed normal wireless backhaul network to make the virtual base station Access to the core network.

Specifically, if multiple virtual base stations are constructed; a normal wireless backhaul network is reconstructed, the specific process is: obtain the first frequency band of each virtual base station; select the lowest frequency band or the least interference from the multiple first frequency bands Frequency band as the new second frequency band; deconstruct the virtual base station corresponding to the new second frequency band, and use the first ARU of the deconstructed virtual base station as the new second ARU; reconfigure according to the new second frequency band and the new second ARU The third parameter of the third application in the base station is composed of the reconfigured third application and the new second ARU to form a new backhaul gateway, and the new backhaul gateway, wireless network and backhaul server to form a normal wireless backhaul. Transmission network.

For example, as shown in Figure 5, the base station has constructed 3 virtual base stations, which belong to operator 1, operator 2, and operator 3. If virtual base station 1 and virtual base station 2 each access the core through the corresponding wireless backhaul network Network, the virtual base station 3 is connected to the wired IP network of operator 3 and accesses the core network of operator 3. If the wireless network in the backhaul network 1 is damaged, and the wired IP network of operator 3 is damaged, then at this time, If it is determined that there is a normal wireless backhaul network, 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 can be accessed through the wireless backhaul network 2. This ensures the network availability of the three virtual base stations.

For another example, as shown in Figure 5, if the virtual base station 1 and the virtual base station 2 each access 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 accesses the core of the operator 3. If the wireless network in backhaul network 1 is damaged, the wireless network in backhaul network 2 is also damaged, and the wired IP network of operator 3 is damaged, then at this time, the backhaul gateway can be rebuilt; at this time, The first frequency band of each virtual base station 1, virtual base station 2, and virtual base station 3 can be obtained, and the frequency band with the least or lowest interference from the three first frequency bands can be selected as the new second frequency band. Assume that the first frequency band of virtual base station 3 is selected as the new second frequency band. The new second frequency band can deconstruct the virtual base station 3, and use the first ARU of the deconstructed virtual base station 3 as the new second ARU. According to the new second frequency band and the new second ARU, configure the third application in the base station The third parameter is the reconfigured third application and the new second ARU to reconstitute the normal backhaul gateway. The normal backhaul gateway, wireless network and backhaul server rebuild the normal wireless backhaul network 3, and the virtual The base station 1 and the virtual base station 2 are connected to the same wireless backhaul network 3, and access the core network through the wireless backhaul network 3. The two backhaul gateways of the failed backhaul network 1 and the failed backhaul network 2 can be deconstructed, and two new virtual base stations can be reconstructed by using the released ARU and frequency band. After reconstruction, there are a total of 4 in the base station The virtual base station, a wireless backhaul network 3, thus ensures the network stability of the 4 virtual base stations. At this time, the operator 3 does not have its own virtual base station and can rely on its public network (commonly known as "big network") to provide services .

The method for constructing a virtual base station provided in this embodiment improves the disaster tolerance of access to the core network by reconnecting the virtual base station to the normal wireless backhaul network when a faulty wireless network occurs.

The division of the steps of the various methods above is just for clarity of description. When implemented, it can be combined into one step or some steps can be split and decomposed into multiple steps. As long as they include the same logical relationship, they are all within the scope of protection of this patent. ; Adding insignificant modifications to the algorithm or process or introducing insignificant design, but not changing the core design of the algorithm and process are within the scope of protection of the patent.

The third embodiment of the present application relates to an apparatus for constructing a virtual base station. The specific structure of the apparatus 30 is shown in FIG. 6, and includes: an acquisition module 301, a first determination module 302, and a first construction module 303. The obtaining module 301 is used to obtain wireless information of the environment where the base station is located; the first determining module 302 is used to determine the first frequency band in which the virtual base station operates according to the wireless information; the first construction module 303 is used to construct the virtual base station according to the first frequency band, where , The virtual base station accesses the core network through the backhaul network.

It is not difficult to find that this embodiment is an example of a device corresponding to the first embodiment, and this embodiment can be implemented in cooperation with the first embodiment. The related technical details mentioned in the first embodiment are still valid in this embodiment, and in order to reduce repetition, they will not be repeated here. Correspondingly, the related technical details mentioned in this embodiment can also be applied in the first embodiment.

The fourth embodiment of the present application relates to a device for constructing a virtual base station. This embodiment is a further improvement of the third embodiment. The main improvement lies in: this embodiment also includes: a second determining module 304 and a second determining module 304. Construction module 305; the specific structure of the device 30 is shown in Figure 7. The second determination module 304 is used to determine the second frequency band that the backhaul gateway operates according to wireless information; the second construction module 305 is used to construct the backhaul according to the second frequency band The backhaul gateway, where the virtual base station is in communication connection with the backhaul gateway, where the backhaul network includes a wireless backhaul network composed of a backhaul gateway, a wireless network, and a backhaul server that are sequentially connected.

It is not difficult to find that this embodiment is an example of a device corresponding to the second embodiment, and this embodiment can be implemented in cooperation with the first embodiment. The related technical details mentioned in the first embodiment are still valid in this embodiment, and in order to reduce repetition, they will not be repeated here. Correspondingly, the related technical details mentioned in this embodiment can also be applied in the first embodiment.

It is worth mentioning that the modules involved in this embodiment are all logical modules. In practical applications, a logical unit can be a physical unit, a part of a physical unit, or multiple physical units. The combination of units is realized. In addition, in order to highlight the innovative part of this application, this embodiment does not introduce units that are not closely related to solving the technical problems proposed by this application, but this does not mean that there are no other units in this embodiment.

The fifth embodiment of the present application relates to a base station. The specific structure of the base station is shown in FIG. 8, and includes: at least one processor 401, multiple antennas connected to the processor 401, and a radio frequency unit ARU (402 in FIG. 7) And, a memory 403 communicatively connected with at least one processor 401; wherein the memory 403 stores instructions that can be executed by at least one processor 401, and the instructions are executed by at least one processor 401, so that at least one processor 401 can execute The method of constructing a virtual base station in the first embodiment or the second embodiment.

The memory 403 and the processor 401 are connected in a bus manner. The bus may include any number of interconnected buses and bridges, and the bus links one or more various circuits of the processor 401 and the memory 403 together. The bus can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art, and therefore, will not be further described herein. The bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices on the transmission medium. The data processed by the processor is transmitted on the wireless medium through the antenna, and further, the antenna also receives the data and transmits the data to the processor.

The processor 401 is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. The memory can be used to store data used by the processor when performing operations.

The sixth embodiment of the present application relates to a wireless network system. The structure of the wireless network system is shown in FIG. 9 and includes: a terminal and a base station in the fourth embodiment; the terminal communicates with the base station, and the base station accesses through the backhaul network The core network, where the backhaul network includes a wired backhaul network and a wireless backhaul network. The wired backhaul network is a wired network in the site environment of the base station. The wireless backhaul network consists of a backhaul gateway, a wireless network, and a backhaul network connected in sequence. Pass server composition. Figure 9 shows the case where the backhaul network is a wireless backhaul network.

The terminal may be a device with the function of transmitting wireless signals, such as a mobile phone, a robot, a computer, and so on.

Those skilled in the art can understand that all or part of the steps in the method of the above-mentioned embodiments can be completed by instructing relevant hardware through a program. The program is stored in a storage medium and includes several instructions to enable a device (which can be a single-chip microcomputer). , A chip, etc.) or a processor (processor) execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disks or optical disks and other media that can store program codes. .

Those of ordinary skill in the art can understand that the above-mentioned embodiments are specific examples for realizing the present application, and in actual applications, various changes can be made in form and details without departing from the spirit and spirit of the present application. range.

Claims

A method for constructing a virtual base station includes:

Obtain wireless information of the environment where the base station is located;

Determine the first frequency band in which the virtual base station operates according to the wireless information;

The virtual base station is constructed according to the first frequency band, wherein the virtual base station accesses the core network through a backhaul network.
The method for constructing a virtual base station according to claim 1, wherein the backhaul network comprises: a wireless backhaul network and a wired backhaul network;

The wireless backhaul network is composed of a backhaul gateway, a wireless network, and a backhaul server that are sequentially connected;

The wired backhaul network is a wired network in the site environment of the base station.
The method for constructing a virtual base station according to claim 2, wherein the method for constructing a virtual base station further comprises:

Determine the second frequency band in which the backhaul gateway operates according to the wireless information;

The backhaul gateway is constructed according to the second frequency band, wherein the virtual base station is in communication connection with the backhaul gateway.
The method for constructing a virtual base station according to claim 3, wherein, before the 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 comprises:

It is determined that there is no wired network in the site environment of the base station; or,

An instruction to construct the backhaul gateway is received.
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:

According to the first frequency band, an antenna and radio frequency unit ARU corresponding to the first frequency band is selected as the first ARU;

According to the first frequency band and the first ARU, the first parameter of the first application and the second parameter of the second application in the base station are configured. An ARU forms the virtual base station, the first application is used to process the protocol stack and services above the RLC layer of the radio link layer control protocol, and provides a backhaul interface, and the second application is used to process the RLC layer separately , Media access control MAC layer and the corresponding protocol and real-time service of the physical layer.
The method for constructing a virtual base station according to any one 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 the first frequency band operated by the virtual base station according to the wireless information specifically includes:

Determine, according to the wireless information, an unused frequency band in the environment where the base station is located;

The first frequency band in which each virtual base station operates separately is selected from the determined unused frequency bands.
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:

According to wireless information, determine the unused frequency bands in the environment;

Select the lowest frequency band or the frequency band with the least interference from the determined unused frequency bands as the second frequency band.
The method for constructing a virtual base station according to claim 3, wherein the base station includes a plurality of antennas and radio frequency units ARU;

The constructing the backhaul gateway according to the second frequency band specifically includes:

Selecting the ARU corresponding to the second frequency band as the second ARU according to the second frequency band;

According to the second frequency band and the second ARU, the third parameter of the third application in the base station is configured, the third application and the second ARU form the backhaul gateway, and the third application It is used to perform the baseband function of the user equipment and the air interface protocol of the user equipment.
The method for constructing a virtual base station according to any one of claims 3 to 7, wherein, after constructing the virtual base station and constructing the backhaul gateway, the method for constructing the virtual base station further comprises:

Invoke the backhaul application to connect the virtual base station and the backhaul gateway.
The method for constructing a virtual base station according to claim 4, wherein the number of said backhaul gateways is multiple.
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 a faulty wireless backhaul network is detected, the virtual base station connected to the faulty wireless backhaul network is reconnected to the normal wireless backhaul network, so that the virtual base station can access the core network .
The method for constructing a virtual base station according to any one of claims 3 to 9, wherein the virtual base station accesses the core network through a wired network in the site environment of the base station;

The method for constructing the virtual base station further includes:

If it is detected that the wired backhaul network is faulty and the normal wireless backhaul network is detected, the connection between the virtual base station and the failed wired backhaul network is disconnected, and the virtual base station is Reconnect with the normal wireless backhaul network, so that the virtual base station can access the core network;

or,

If a failure of the wired backhaul network is detected and a normal wireless backhaul network is not detected, the connection between the virtual base station and the failed wired backhaul network is disconnected, and a normal wireless backhaul is rebuilt The network connects the virtual base station with a reconstructed normal wireless backhaul network, so that the virtual base station accesses the core network.
The method for constructing a virtual base station according to claim 12, wherein, if a plurality of virtual base stations are constructed,

The reconstruction of a normal wireless backhaul network specifically includes:

Acquiring the first frequency band of each virtual base station;

Selecting the lowest frequency band or the frequency band with the least interference from the plurality of first frequency bands as the new second frequency band;

Deconstruct the virtual base station corresponding to the new second frequency band, and use the deconstructed first ARU of the virtual base station as a new second ARU;

According to the new second frequency band and the new second ARU, the third parameter of the third application in the base station is reconfigured to be reconfigured by the reconfigured third application and the new second ARU The new backhaul gateway is composed of the new backhaul gateway, the wireless network and the backhaul server to form a normal wireless backhaul network.
A device for constructing a virtual base station, including: an acquisition module, a first determination module, and a first construction module;

The acquisition module is used to acquire wireless information of the environment where the base station is located;

The first determining module is configured to determine the first frequency band in which the virtual base station operates according to the wireless information;

The first construction module is configured to construct the virtual base station according to the first frequency band, wherein the virtual base station accesses the core network through a backhaul network.
The device for constructing a virtual base station according to claim 14, further comprising: a second determining module and a second constructing module;

The second determining module is configured to determine the second frequency band in which the backhaul gateway operates according to the wireless information;

The second construction module is configured to construct the backhaul gateway according to the second frequency band, wherein the virtual base station is in communication connection with the backhaul gateway, and the backhaul network includes a backhaul network connected in sequence. A wireless backhaul network composed of a gateway, a wireless network, and a backhaul server.
A base station, including:

At least one processor, multiple antennas and radio frequency units ARU connected to the processor; and,

A memory communicatively connected with the at least one processor; wherein,

The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can execute any one of claims 1-13. The method of virtual base station construction.
A wireless network system, comprising: a terminal and the base station according to claim 14;

The terminal is in communication connection with the base station, and the base station accesses the core network through the backhaul network. The backhaul network includes a wired backhaul network and a wireless backhaul network. In the wired network in the site environment of the base station, the wireless backhaul network is composed of a backhaul gateway, a wireless network, and a backhaul server that are sequentially connected.