CN113660613A

CN113660613A - Communication method and communication system of micro base station

Info

Publication number: CN113660613A
Application number: CN202110898910.6A
Authority: CN
Inventors: 蒋毅; 刘国勇
Original assignee: Super Communications Co ltd
Current assignee: Super Communications Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2021-11-16

Abstract

The application provides a communication method and a communication system of a micro base station. Wherein the method comprises the following steps: an active antenna unit of the micro base station receives a communication signal sent by a request user terminal; sending the communication signal to a data communication satellite, and sending the communication signal to a distribution unit of the micro base station distributed at a different geographical position from the active antenna unit of the micro base station by the data communication satellite; the distribution units of the micro base stations distributed in different geographical positions from the active antenna units of the micro base stations process the communication signals and send the processed communication signals to a core network; and the core network communicates with the search user terminal according to the processed communication signal.

Description

Communication method and communication system of micro base station

Technical Field

The present application relates to the field of communications technologies, and in particular, to a communication method and a communication system for a micro base station.

Background

The technology development in the prior art brings diversified communication modes, and great convenience is brought to the life of a user. The user terminal realizes the communication with another user terminal through the existing communication system, and realizes the communication between users in different regions. Wherein, in the process of communication between users, the base station is indispensable as a relay device in the communication system.

In the process of realizing the prior art, the inventor finds that:

in the communication process of the existing communication system, only short-time communication requirements are needed for remote places or some remote places, the base station for deploying the existing communication system is a high cost, and the maintenance of base station equipment in the later period cannot be avoided.

Therefore, it is desirable to provide a solution for low-cost micro base station communication.

Disclosure of Invention

The embodiment of the application provides a technical scheme of low-cost micro base station communication, which is used for solving the problem of high communication cost in some communication processes in the prior art.

Specifically, a communication method of a micro base station includes the following steps:

an active antenna unit of the micro base station receives a communication signal sent by a request user terminal;

sending the communication signal to a data communication satellite, and sending the communication signal to a distribution unit of the micro base station distributed at a different geographical position from the active antenna unit of the micro base station by the data communication satellite;

the distribution units of the micro base stations distributed in different geographical positions from the active antenna units of the micro base stations process the communication signals and send the processed communication signals to a core network;

and the core network communicates with the search user terminal according to the processed communication signal.

Furthermore, the active antenna unit of the micro base station is also provided with a signal selection sending unit;

the signal selection sending unit is provided with a signal selection sending condition, and when the communication signal meets the signal selection sending condition, the communication signal is sent to the data communication satellite and sent to the distribution unit of the micro base station distributed at a different geographical position from the active antenna unit of the micro base station by the data communication satellite.

Further, when the communication signal satisfies the signal selection sending condition, the communication signal is sent to the data communication satellite, and the data communication satellite sends the communication signal to the distribution unit of the micro base station distributed at a different geographical position from the active antenna unit of the micro base station, which specifically includes:

when the signal transmission consumption resource consumed by the distribution unit which sends the communication signal to the micro base station is larger than the signal transmission consumption resource consumed by the distribution unit which sends the communication signal to the data communication satellite and sends the communication signal to the micro base station by the data communication satellite, the communication signal is selected to be sent to the data communication satellite and sent to the distribution unit of the micro base station distributed at the different geographical position from the active antenna unit of the micro base station by the data communication satellite;

wherein the signal transmission resources comprise at least power transmission consuming resources.

Further, before the communication signal is transmitted to the data communication satellite and is transmitted by the data communication satellite to the distribution unit of the micro base station distributed at a different geographical position from the active antenna unit of the micro base station, the method further includes:

processing the communication signal to generate a communication signal transmitted through a satellite link;

and sending the generated communication signal transmitted through the satellite link to a data communication satellite, and sending the communication signal to a distribution unit of the micro base station distributed at a different geographical position from the active antenna unit of the micro base station by the data communication satellite.

Further, the core network communicates with the search user terminal according to the processed communication signal, and specifically includes:

and the core network selects one of the satellite link passing through the data communication satellite or the satellite link not passing through the data communication satellite according to the processed communication signal to communicate with the search user terminal.

Furthermore, the active antenna unit of the micro base station is also provided with a positioning unit;

the positioning unit at least comprises one of a GPS positioning unit, a Beidou positioning unit and a Galileo positioning unit.

The embodiment of the present application further provides a communication system of a micro base station, including:

the receiving module is used for receiving a communication signal sent by a request user terminal by an active antenna unit of the micro base station;

the sending module is used for sending the communication signal to a data communication satellite and sending the communication signal to a distribution unit of the micro base station distributed at a different geographical position from the active antenna unit of the micro base station by the data communication satellite;

the processing module is used for processing the communication signals by the distribution units of the micro base stations distributed at different geographical positions from the active antenna units of the micro base stations and sending the processed communication signals to a core network;

and the communication module is used for the core network to communicate with the search user terminal according to the processed communication signal.

Furthermore, the sending module is also provided with a signal selection sending unit;

Further, before the sending module sends the communication signal to a data communication satellite and the data communication satellite sends the communication signal to a distribution unit of a micro base station distributed at a different geographical location from the active antenna unit of the micro base station, the sending module further includes:

the signal conversion module is used for carrying out signal processing on the communication signal to generate a communication signal transmitted through a satellite link; and sending the generated communication signal transmitted through the satellite link to a data communication satellite, and sending the communication signal to a distribution unit of the micro base station distributed at a different geographical position from the active antenna unit of the micro base station by the data communication satellite.

The technical scheme provided by the embodiment of the application at least has the following beneficial effects: by the communication method and the communication system of the micro base station, the low-cost communication requirement that temporary communication is needed for remote places or remote places can be met.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a flowchart of a communication method of a micro base station according to an embodiment of the present disclosure.

Fig. 2 is a schematic structural diagram of a communication system of a micro base station according to an embodiment of the present disclosure.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The existing communication method basically accesses a communication terminal to a communication network through a base station for communication, that is, the communication is performed through a wireless access network. The wireless access network at least comprises a wireless side access network, a bearer network and a core network. The basic communication logic architecture of the communication network is basically as follows: terminal 1 to access network, access network to bearer network, bearer network to core network, core network to bearer network, bearer network to access network, access network to terminal 2. The communication between the terminals is realized through the logic architecture. In the process that the terminal accesses the access network or the access network accesses the terminal, the process can be realized through a macro base station, a micro base station and the like. In our living environment, there are many remote or sparsely populated areas where people are rarely involved, but where short-term communication needs are sometimes required. In order to meet the communication needs of many remote or sparsely populated areas, base stations are required to be built for remote communication. Moreover, the base station needs to be periodically maintained after being constructed. In contrast, the communication process in remote places is less, and the cost for building and maintaining the base station is high, so in the preferred embodiment provided by the application, how to change the problem of high cost caused by the communication method of the existing base station is a technical problem to be solved by the technical scheme of the application, thereby realizing the communication method of the micro base station with low cost.

Conventional base stations generally include: the system comprises a baseband processing Unit Building Base band Unit, a Radio Remote Unit Remote Radio Unit and a feeder line. The baseband processing unit is mainly responsible for signal modulation. The remote radio unit is mainly responsible for radio frequency processing. The feeder line is connected with the radio remote unit and the antenna. The antenna is mainly responsible for the conversion between guided waves on the cable and space waves in the air. In order to meet user requirements in different environments, the conventional base station is further optimized, namely, is deployed in a separated manner. The optimized base station is reconstructed into the following 3 functional entities: a Centralized Unit, a distributed Unit and an Active Antenna Unit. The centralized unit cuts off the non-real time part of the original baseband processing unit to be defined as responsible for processing the non-real time protocol and service. The distribution unit is redefined by the remaining functions of the original baseband processing unit to be responsible for processing physical layer protocols and real-time services. The active antenna unit is formed by combining part of physical layer processing functions of the original baseband processing unit, the original radio remote unit and the passive antenna.

The Centralized Unit, the distributed Unit and the Active Antenna Unit have various network deployment forms. The network deployment morphology at least comprises: an Active Antenna Unit is deployed outside, and a Centralized Unit and a distributed Unit are deployed in a computer room together through hardware to form a BBU (base band Unit); or the Active Antenna Unit may be deployed outside, the distributed Unit may be deployed in the BBU room, and the Centralized Unit may be deployed in the integrated access room. The selection of the deployment modes needs to comprehensively consider a plurality of factors including the transmission requirement of the service, the construction cost investment, the maintenance difficulty and the like.

The existing modes from the Active Antenna Unit to the distribution Unit can be optical fiber direct connection, passive WDM, Active WDM/OTN modes. The transmission between the Active Antenna Unit to the distribution Unit can be considered as a forward transmission. The distribution Unit Distribute Unit to the Centralized Unit is called a retransmission. The transmission of the Centralized Unit to the core network is called backhaul. In a preferred embodiment provided by the present application, the technical solution is optimized mainly for forward transmission, so as to realize low-cost transmission between an Active Antenna Unit and a distribution Unit.

A data communication satellite, mainly deployed in a geostationary orbit, comprises: high throughput communication satellites, broadband mobile communication satellites, high definition television direct broadcast satellites, and fully electrically propelled satellites. In a preferred embodiment provided by the application, a high-throughput communication satellite, the zhongxing 16 number, is adopted as a relay device for communication transmission signals of the micro base station. It will be appreciated that the choice of data communication satellites as described herein is clearly not intended to limit the scope of the present application.

Referring to fig. 1, a communication method of a micro base station provided in an embodiment of the present application includes the following steps:

s110: the active antenna unit of the micro base station receives a communication signal sent by a requesting user terminal.

Specifically, the micro base station described herein employs distributed deployment, in which an active antenna unit is deployed at a certain location individually for receiving a communication signal sent by a requesting user terminal. The active antenna unit includes at least: a receiving antenna module for receiving a signal; and a power supply module. The power supply module is provided with two parts, namely a wired connection power supply module and an onboard battery power supply module according to the actual deployment environment. The onboard battery supplies power to the active antenna unit to meet the requirements of carrying equipment. It should be understood that the specific representation of the power supply module of the active antenna unit of the micro base station obviously does not limit the scope of protection of the present application.

It should be noted that, the active antenna unit of the micro base station is additionally provided with a module for communicating with a satellite on the basis of the original functional module, so as to implement the communication with lower cost to be implemented in the embodiments of the present application. Adding a module for communicating with a satellite in an active antenna unit of a micro base station at least comprises the following steps: the satellite positioning system comprises a satellite uploading data processing unit, a satellite receiving data processing unit and a Beidou positioning satellite unit. The Beidou positioning satellite unit can also be other positioning satellite units, such as a GPS satellite positioning unit. The Beidou positioning satellite unit or the GPS satellite positioning unit is arranged in the active antenna unit of the micro base station, so that the synchronization of communication signals is realized. And the satellite uploading data processing unit and the satellite receiving data processing unit are both used for processing the signals received by the active antenna unit into satellite communication signals, so that the transmission of communication information is realized.

It is understood that the active antenna unit of the micro base station described herein may be deployed in different environments, i.e., in urban dense population, or in rare remote environments. The active antenna unit of the micro base station can communicate by the existing communication method, or can communicate by a data communication satellite after a satellite communication device is added. Therefore, the problem that higher cost investment and maintenance are caused by the fact that a normal base station needs to be deployed in a remote place to realize short-time communication in the prior art is solved. Meanwhile, the active antenna unit of the micro base station is deployed in a city, and temporary communication can be carried out through a data communication satellite under the condition that the base station of the city is abnormal or has other emergencies. It is also understood that the active antenna unit of the micro base station receives the communication signal from the requesting user terminal, that is, the active antenna unit receives the communication signal from the requesting user terminal through the rf antenna.

S120: and sending the communication signal to a data communication satellite, and sending the communication signal to a distribution unit of the micro base station distributed at a different geographical position from the active antenna unit of the micro base station by the data communication satellite.

Specifically, after receiving a communication signal sent by a requesting user terminal, the active antenna unit of the micro base station converts the communication signal into a satellite data communication signal, and then sends the satellite data communication signal to a communication satellite. The communication satellite sends the satellite data signal to a distribution unit of the micro base station which is different from the active antenna unit of the micro base station in geographic position and is additionally provided with a satellite receiving end.

It should be noted that, the distributed unit of the micro base station and the active antenna unit of the micro base station realize the transmission of the distributed micro base station through the data communication satellite by additionally arranging a terminal for receiving and processing signals by the satellite. After receiving satellite communication signals sent by satellites, the distribution unit of the micro base station processes the satellite data communication signals to generate communication signals.

It is understood that the concentration unit in the micro base station may be located at the same position as the distribution unit, or may not be located at the same position as the distribution unit of the micro base station, which is determined according to the actual situation. For example, in some communication environments, the micro base stations may be distributed by a centralized unit and a distributed unit, or by a centralized unit and a distributed unit located at different positions. The central unit divides the middle non-real time part of the original baseband processing unit to define the part responsible for processing the non-real time protocol and service, and the distribution unit redefines the rest functions of the original baseband processing unit to be responsible for processing the physical layer protocol and the real time service, so that the central unit and the distribution unit of the micro base station can be deployed in a distributed mode according to the actual situation.

Further, in a preferred embodiment provided by the present application, the active antenna unit of the micro base station is further provided with a signal selection sending unit;

Specifically, the setting of the signal selection transmitting unit is selected according to the position of the requesting user terminal and other judgment conditions. And selecting an optimal communication signal transmission mode to transmit signals by setting signal selection sending conditions.

It should be noted that, in a preferred embodiment provided in the present application, when the requesting user terminal is located in a remote geographic location, the signal selection sending unit in the active antenna unit of the micro base station determines that the geographic location cannot realize signal transmission through the micro base station, and then processes the communication signal sent by the requesting user terminal, and sends the communication signal to the data communication satellite, and the data communication satellite sends the communication signal to the distribution unit of the micro base station distributed in a geographic location different from the active antenna unit of the micro base station.

It is understood that a remote geographical location is a location where a base station is not constructed or where the base station is deployed and where maintenance costs are high and not worth deploying the base station. The determination by the signal selection transmitting unit may first determine whether or not the communication signal requesting the transmission of the user terminal can be transmitted without going through the data communication satellite. When it is determined that the communication signal transmitted from the requesting user terminal can be transmitted without passing through the data communication satellite, resources consumed for transmitting the communication signal transmitted from the requesting user terminal are determined, and an optimal communication signal transmission method is selected to transmit the signal.

Further, in a preferred embodiment provided by the present application, when the communication signal satisfies the signal selection sending condition, the sending of the communication signal to the data communication satellite, and the sending of the communication signal by the data communication satellite to the distribution unit of the micro base station distributed at a different geographical location from the active antenna unit of the micro base station specifically includes:

when the signal transmission consumption resource consumed by the distribution unit which sends the communication signal to the micro base station is larger than the signal transmission consumption resource consumed by the distribution unit which sends the communication signal to the data communication satellite and sends the communication signal to the micro base station by the data communication satellite, the communication signal is selected to be sent to the data communication satellite and sent to the distribution unit of the micro base station distributed at the different geographical position from the active antenna unit of the micro base station by the data communication satellite; wherein the signal transmission resources comprise at least power transmission consuming resources.

Specifically, it is considered that in an actual application scenario, when the requesting user terminal is in a non-base station deployment environment, the active antenna unit of the micro base station may directly set the signal selection sending unit to satisfy the signal selection sending condition, send the communication signal to the data communication satellite, and send the communication signal to the distribution unit of the micro base station distributed at a different geographical position from the active antenna unit of the micro base station by the data communication satellite. In a base station deployment environment, such as an area with concentrated cities, the signal selection and transmission unit of the micro base station active antenna unit may select an appropriate communication path for signal transmission according to the signal transmission consumption resource.

It should be noted that the active antenna element signal selection transmitter unit of the micro base station is also configured to allow for unexpected damage or power loss to the base station in the normal base station deployment environment. When the base station is unexpectedly damaged or powered off, the active antenna unit of the micro base station can exert an emergency standby state to realize the transmission of communication signals. It should also be noted that the signal transmission resource is a power resource, a voice bandwidth resource, and the like of the relay device, which are wasted in the communication between the requesting user terminal and the searching user terminal.

Further, in a preferred embodiment provided by the present application, before the communication signal is transmitted to a data communication satellite and is transmitted by the data communication satellite to a distribution unit of a micro base station distributed at a different geographical location from an active antenna unit of the micro base station, the method further includes: processing the communication signal to generate a communication signal transmitted through a satellite link; and sending the generated communication signal transmitted through the satellite link to a data communication satellite, and sending the communication signal to a distribution unit of the micro base station distributed at a different geographical position from the active antenna unit of the micro base station by the data communication satellite.

Specifically, the communication signal is processed to generate a communication signal transmitted via a satellite link. The processing of the satellite signal can be the processing of a satellite data processing unit additionally arranged on the micro base station active antenna unit, or the processing of the communication signal converted into the communication signal transmitted by the satellite link after the micro base station active antenna is sent to the ground satellite communication station through the additionally arranged satellite data processing unit for processing. It will be appreciated that the particular representation of the communication signals transmitted by the satellite link described herein is clearly not intended to limit the scope of the present application.

It will be appreciated that when the data communication satellite is transmitted to a distribution unit of the micro base station that is distributed at a different geographical location from the active antenna unit of the micro base station, the distribution unit of the micro base station may be a device provided with satellite data conversion for receiving and processing signals transmitted by the data communication satellite. The distribution unit of the micro base station can also be a distribution unit which receives data communication satellite signals through equipment of the ground satellite communication station, processes the signals through the equipment of the ground satellite communication station and then sends the signals to the micro base station.

Further, in a preferred embodiment provided by the present application, the active antenna unit of the micro base station is further provided with a positioning unit;

Specifically, the active antenna unit of the micro base station can realize the second pulse synchronization of the clock while realizing the positioning by using a Beidou positioning unit, a GPS positioning unit or a Galileo positioning unit. Meanwhile, the positioning unit arranged on the active antenna unit of the micro base station can be read by a data communication satellite, so that the position of the active antenna unit of the micro base station is obtained. For example, in an actual application scenario, an active antenna unit of a micro base station is provided with a GPS positioning unit, and when the micro base station transmits a communication signal through a data communication satellite, a beidou positioning unit of the micro base station determines the position of the active antenna unit of the micro base station deployed in the field by reading latitude and longitude information of the GPS positioning satellite.

It can be understood that the GPS is a Global Positioning System, the Galileo Positioning unit is a Galileo Global satellite navigation System, and the beidou Positioning unit is a beidou Positioning System. The positioning system adopted by the positioning unit is at least one of the positioning units, and can also be an active antenna unit which is additionally arranged on the micro base station together with the GPS positioning unit and the Beidou satellite positioning unit. It is understood that the positioning system adopted by the positioning unit of the active antenna unit of the micro base station obviously does not limit the protection scope of the present application.

S130: and the distribution units of the micro base stations distributed at different geographical positions from the active antenna units of the micro base stations process the communication signals and send the processed communication signals to a core network.

In particular, the communication signals are processed by distribution units of the micro base stations distributed at different geographical locations from the active antenna units of the micro base stations. The micro base stations are deployed in a distributed mode, and signal transmission between different geographic positions is achieved through a data communication satellite. And when receiving the communication signal, the distribution unit of the micro base station processes the signal. The signal processing described here may be processing performed by the distribution unit of the micro base station upon receiving the communication signal, or processing performed by the concentration unit of the micro base station connected to the distribution unit of the micro base station after the distribution unit of the micro base station receives the signal.

It should be noted that after the distribution unit of the micro base station processes the communication signal, the processed communication signal is sent to the core network. Here, the processed communication signal is sent to the core network, and the processed communication signal can be sent through the existing deployed normal base station.

S140: and the core network communicates with the search user terminal according to the processed communication signal.

Specifically, in the communication with the search user terminal, it is also possible to select whether or not to perform communication with the search user terminal via the data communication satellite.

It should be noted that, when the processed communication signal is communicated with the searching user terminal, a signal selection sending unit may also be provided, so that the processed communication signal is sent through a data communication satellite to save more transmission resources, or through a normal base station to save more transmission resources. It will be appreciated that the signal selection transmitter unit should also consider searching for the location of the user terminal communication where the signal transmission resources are considered. If the position of the search user terminal can only be communicated through the data communication satellite, the data communication satellite is adopted for transmission no matter how much transmission resources are wasted, so that the transmission of communication signals is realized.

Further, in a preferred embodiment provided by the present application, the communicating, by the core network, with the search user terminal according to the processed communication signal specifically includes:

Specifically, considering that the data communication satellite is also used for transmission during communication with the search user terminal, when data communication is performed with the search user terminal, one of a satellite link through the data communication satellite and a satellite link not through the data communication satellite may be selected for communication.

It can be understood that the application of the satellite link through the data communication satellite or the satellite link not through the data communication satellite can solve the problem that the blind spot of the existing communication signal cannot be covered.

In a preferred embodiment provided by the present application, the user terminal is requested to be located in a remote location, and the search user terminal is located in a city concentration area. The process of the requesting user terminal communicating with the searching user terminal may be described as the following process: and requesting the user terminal to send a communication signal to the active antenna unit of the micro base station, and selecting the data communication satellite to send the communication signal by the active antenna unit of the micro base station according to the additionally arranged signal selection sending unit. It can be understood that, the data communication satellite is selected to transmit the communication signal because the location of the requesting user terminal is not necessary or costly due to the deployment of the normal base station, and the communication signal transmitted by the requesting user terminal is transmitted through the data communication satellite, so that the cost of deploying the normal base station can be reduced while signal blind spot coverage is realized. When the data communication satellite transmits the received communication signal to the distribution unit of the micro base station in the urban concentrated area, after the distribution unit of the micro base station processes the communication signal and transmits the communication signal to the core network, the core network selects the normal base station to perform communication with the search user terminal according to the signal selection transmitting unit. Here, the signal selection transmitting unit selects the normal base station to transmit the communication signal, and the normal base station is selected to transmit the communication signal in consideration of the fact that the search user terminal is located in the urban concentrated area and the transmission of the communication signal by the normal base station consumes less transmission resources than the transmission of the communication signal by the data communication satellite. After the distribution unit of the micro base station processes the communication signal and sends the communication signal to the core network, the core network can select the communication between the data communication satellite and the search user terminal according to the signal selection sending unit. The signal selection sending unit selects the data communication satellite to communicate with the search user terminal as standby communication, namely when the normal base station cannot work or is abnormal, the signal selection sending unit covers the blind spot of the signal, and the cost for deploying the normal base station is reduced. When the data communication satellite sends the received communication signal to the distribution unit of the micro base station in the C city concentrated area, after the distribution unit of the micro base station processes the communication signal and sends the communication signal to the core network, the core network selects the data communication satellite according to the signal selection sending unit and sends the data communication satellite to the B city concentrated area, and then the data communication satellite is communicated with the search user terminal. When the data communication satellite sends the received communication signals to the distribution unit of the micro base station in the C city concentrated area, after the distribution unit of the micro base station processes the communication signals and sends the communication signals to the core network, the core network selects the data communication satellite to send to the D desert according to the signal selection sending unit, and the D desert selects the data communication satellite to send to the B city concentrated area through the signal selection sending unit and then communicates with the search user terminal.

It should be understood that the communication method between the requesting ue and the searching ue is not limited to the above example, and the transmission of the communication signal by the method between the other requesting ue and the searching ue obviously does not limit the protection scope of the present application.

Referring to fig. 2, a communication system of a micro base station provided in an embodiment of the present application includes:

a receiving module 10, configured to receive a communication signal sent by a user terminal by an active antenna unit of a micro base station.

It should be noted that, the active antenna unit of the micro base station is additionally provided with a module for communicating with a satellite on the basis of the original functional module, so as to implement the communication with lower cost to be implemented in the embodiments of the present application. Adding a module for communicating with a satellite in an active antenna unit of a micro base station at least comprises the following steps: the satellite uploading data directly selects a data communication satellite to communicate with the user terminal for searching.

In another preferred embodiment provided by the present application, the user terminal is requested to be located in a certain position of the desert, and the user terminal is searched for being located in another position of the desert or another desert. The process of requesting the user terminal to communicate with the searching user terminal may be described as the following process: and requesting the user terminal to send a communication signal to the active antenna unit of the micro base station, and selecting the data communication satellite to send the communication signal by the active antenna unit of the micro base station according to the additionally arranged signal selection sending unit. It can be understood that, the data communication satellite is selected to transmit the communication signal because the location of the requesting user terminal is not necessary or costly due to the deployment of the normal base station, and the communication signal transmitted by the requesting user terminal is transmitted through the data communication satellite, so that the cost of deploying the normal base station can be reduced while signal blind spot coverage is realized. When the data communication satellite sends the received communication signals to the distribution units of the micro base stations in the urban concentrated area, after the distribution units of the micro base stations process the communication signals and send the communication signals to the core network, the core network selects the data communication satellite according to the signal selection sending unit to communicate with the search user terminal. The reason why the signal selection sending unit selects the data communication satellite to communicate with the search user terminal is that the search user terminal is also located in a desert, the position is also high in cost of deploying the normal base station, and the data communication satellite communicates with the search user terminal, so that signal blind spot coverage can be achieved, and meanwhile the cost of deploying the normal base station is reduced.

In a third preferred embodiment provided by the present application, the requesting user terminal is located at a certain position in desert a, the searching user terminal is located in a concentrated area in city b, and the transmission of communication signals between the requesting user terminal and the searching user terminal needs to be realized through a plurality of data communication satellites. The process of the requesting user terminal communicating with the searching user terminal may be described as the following process: and requesting the user terminal to send a communication signal to the active antenna unit of the micro base station, and selecting the data communication satellite to send the communication signal by the active antenna unit of the micro base station according to the additionally arranged signal selection sending unit. It is understood that the data communication satellite is selected to transmit the communication signal because it is not necessary or costly to deploy the normal base station at the location of the requesting user terminal, and the data communication satellite can transmit the communication signal transmitted by the requesting user terminal, such as the data processing unit, the satellite receiving data processing unit, and the beidou positioning satellite unit. The Beidou positioning satellite unit can also be other positioning satellite units, such as a GPS satellite positioning unit. The Beidou positioning satellite unit or the GPS satellite positioning unit is arranged in the active antenna unit of the micro base station, so that the synchronization of communication signals is realized. And the satellite uploading data processing unit and the satellite receiving data processing unit are both used for processing the signals received by the active antenna unit into satellite communication signals, so that the transmission of communication information is realized.

And a sending module 20, configured to send the communication signal to a data communication satellite, and send the communication signal to a distribution unit of the micro base station distributed at a different geographic location from the active antenna unit of the micro base station by the data communication satellite.

And the processing module 30 is configured to process the communication signal by the distribution unit of the micro base station distributed in a different geographical location from the active antenna unit of the micro base station, and send the processed communication signal to the core network.

And the communication module 40 is used for the core network to communicate with the search user terminal according to the processed communication signal. It is understood that the value range of m described herein obviously does not limit the scope of protection of the present application.

In a preferred embodiment provided by the present application, the user terminal is requested to be located in a remote location, and the search user terminal is located in a city concentration area. The process of the requesting user terminal communicating with the searching user terminal may be described as the following process: and requesting the user terminal to send a communication signal to the active antenna unit of the micro base station, and selecting the data communication satellite to send the communication signal by the active antenna unit of the micro base station according to the additionally arranged signal selection sending unit. It can be understood that, the data communication satellite is selected to transmit the communication signal because the location of the requesting user terminal is not necessary or costly due to the deployment of the normal base station, and the communication signal transmitted by the requesting user terminal is transmitted through the data communication satellite, so that the cost of deploying the normal base station can be reduced while signal blind spot coverage is realized. When the data communication satellite transmits the received communication signal to the distribution unit of the micro base station in the urban concentrated area, after the distribution unit of the micro base station processes the communication signal and transmits the communication signal to the core network, the core network selects the normal base station to perform communication with the search user terminal according to the signal selection transmitting unit. Here, the signal selection transmitting unit selects the normal base station to transmit the communication signal, and the normal base station is selected to transmit the communication signal in consideration of the fact that the search user terminal is located in the urban concentrated area and the transmission of the communication signal by the normal base station consumes less transmission resources than the transmission of the communication signal by the data communication satellite. After the distribution unit of the micro base station processes the communication signal and sends the communication signal to the core network, the core network can select the communication between the data communication satellite and the search user terminal according to the signal selection sending unit. The signal selection sending unit selects the data communication satellite to communicate with the search user terminal as standby communication, namely when the normal base station cannot work or is abnormal, the signal selection sending unit directly selects the data communication satellite to communicate with the search user terminal.

In a third preferred embodiment provided by the present application, the requesting user terminal is located at a certain position in desert a, the searching user terminal is located in a concentrated area in city b, and the transmission of communication signals between the requesting user terminal and the searching user terminal needs to be realized through a plurality of data communication satellites. The process of the requesting user terminal communicating with the searching user terminal may be described as the following process: and requesting the user terminal to send a communication signal to the active antenna unit of the micro base station, and selecting the data communication satellite to send the communication signal by the active antenna unit of the micro base station according to the additionally arranged signal selection sending unit. It can be understood that, the data communication satellite is selected to transmit the communication signal because the location of the requesting user terminal is not necessary or costly due to the deployment of the normal base station, and the communication signal transmitted by the requesting user terminal is transmitted through the data communication satellite, so that the cost of deploying the normal base station can be reduced while signal blind spot coverage is realized. When the data communication satellite sends the received communication signal to the distribution unit of the micro base station in the C city concentrated area, after the distribution unit of the micro base station processes the communication signal and sends the communication signal to the core network, the core network selects the data communication satellite according to the signal selection sending unit and sends the data communication satellite to the B city concentrated area, and then the data communication satellite is communicated with the search user terminal. When the data communication satellite sends the received communication signals to the distribution unit of the micro base station in the C city concentrated area, after the distribution unit of the micro base station processes the communication signals and sends the communication signals to the core network, the core network selects the data communication satellite to send to the D desert according to the signal selection sending unit, and the D desert selects the data communication satellite to send to the B city concentrated area through the signal selection sending unit and then communicates with the search user terminal.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the statement that there is an element defined as "comprising" … … does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A communication method of a micro base station is characterized by comprising the following steps:

2. The method of claim 1, wherein the active antenna unit of the micro base station is further provided with a signal selection transmitting unit;

3. The method of claim 2, wherein the communication signal is transmitted to the data communication satellite when the communication signal satisfies the signal selection transmission condition, and is transmitted by the data communication satellite to a distribution unit of the micro base station distributed at a different geographical location from the active antenna unit of the micro base station, specifically comprising:

4. The method of claim 1, wherein prior to transmitting the communication signal to a data communication satellite and by the data communication satellite to a distribution unit of a micro base station distributed at a different geographic location than an active antenna unit of the micro base station, further comprising:

5. The method of claim 1, wherein the core network communicates with the search user terminal according to the processed communication signal, and specifically comprises:

6. The method of claim 1, wherein the active antenna unit of the micro base station is further provided with a positioning unit;

7. A communication system of a micro base station, comprising:

8. The system of claim 7, wherein the transmitting module is further provided with a signal selection transmitting unit;

9. The system of claim 8, wherein the communication signal is transmitted to the data communication satellite when the communication signal satisfies the signal selection transmission condition and is transmitted by the data communication satellite to a distribution unit of the micro base station distributed at a different geographical location from the active antenna unit of the micro base station, comprising:

10. The system of claim 7, wherein the transmitting module, prior to transmitting the communication signal to a data communication satellite for transmission by the data communication satellite to a distribution unit of the micro base station distributed at a different geographic location than the active antenna unit of the micro base station, further comprises: