CN110267284B - 4G small base station side data transmission method based on software definition and 4G small base station - Google Patents
4G small base station side data transmission method based on software definition and 4G small base station Download PDFInfo
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- CN110267284B CN110267284B CN201910569611.0A CN201910569611A CN110267284B CN 110267284 B CN110267284 B CN 110267284B CN 201910569611 A CN201910569611 A CN 201910569611A CN 110267284 B CN110267284 B CN 110267284B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0205—Traffic management, e.g. flow control or congestion control at the air interface
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The embodiment of the invention discloses a 4G small base station side data transmission method based on software definition and a 4G small base station. The method comprises the following steps: receiving first information sent by core network equipment of a communication operator or a communication equipment manufacturer through a pre-selected and configured docking interface in the adaptation layer from a plurality of docking interfaces set in the 4G small base station according to an application scene and sending the first information to the protocol control layer; processing first information by a target protocol stack branch selected and deployed from a plurality of protocol stack branches loaded in advance in a software configuration mode according to an application scene in a protocol control layer to obtain first processing information and sending the first processing information to a physical layer; and processing the first processing information through a physical layer and then sending the first processing information to the outside through an air interface. The 4G small base station adopting the technical scheme can be flexibly suitable for various application scenes, and the beneficial effects of flexibly, simply and conveniently configuring and/or cutting the protocol stack of the protocol control layer according to application requirements are realized.
Description
Technical Field
The embodiment of the invention relates to the technical field of wireless communication, in particular to a software-defined-based 4G small base station side data transmission method and a 4G small base station.
Background
With the development of the fourth generation (4G) wireless communication technology, the coverage requirement on 4G signals is higher and higher, especially, the traffic is low, but the bandwidth requirement is high, such as indoor coverage, oil field coverage, urban blind area coverage, underground garages, basement coverage, tunnel coverage, and private network coverage of different frequency bands. The coverage requirement can be met by a coverage mode of a micro-cellular small base station, and the radio frequency, the power amplifier and the base band are arranged in one case, so that the deployment is flexible and convenient.
The inventor finds that: for different coverage requirements, when a UE (User Equipment) communicates with a small base station, or when the small base station communicates with the small base station, protocols in wireless communication standards are different, and related parameters of the protocols are also different, however, currently, both the UE and the small base station use common protocols in the wireless communication standard (LTE). Based on the current LTE protocol stack design mode, if the protocol is temporarily cut according to the requirements of a user scene, the workload of code reconstruction is large and errors are easy to occur. For example, when only the mobility management function of the RRC (Radio Resource Control) layer is removed, mobility management in an idle state, mobility management in a link state, and corresponding cell selection and cell reselection need to be modified accordingly, so that the original design and code are reconstructed, the workload is greater than that of new development, and the probability of bug occurrence is high and the stability is poor. In brief, modifying a protocol at a point involves changes to other protocols.
Disclosure of Invention
The embodiment of the invention provides a software-definition-based 4G small base station side data transmission method and a 4G small base station, aiming at enabling the 4G small base station adopting the data transmission method to be flexibly suitable for various application scenes and realizing flexible, simple and convenient configuration and/or cutting of a protocol stack according to the requirements of the application scenes.
In a first aspect, an embodiment of the present invention provides a software-defined 4G small base station side data transmission method, including:
receiving first information sent by core network equipment of a communication operator or a communication equipment manufacturer through a pre-selected and configured docking interface in an adaptation layer from a plurality of docking interfaces set in a 4G small base station according to application requirements and/or application scenes, and sending the first information to a protocol control layer;
processing the first information through a target protocol stack branch selected and deployed from a plurality of protocol stack branches loaded in advance in a software configuration mode according to application requirements and/or application scenes in a protocol control layer to obtain first processing information, and sending the first processing information to a physical layer;
and processing the first processing information through a physical layer and then sending the first processing information to the outside through an air interface.
In a second aspect, an embodiment of the present invention provides a software-defined 4G small base station side data transmission method, including:
receiving second information sent by a user terminal through an air interface of a physical layer, and sending the second information to a protocol control layer;
processing the second information through a target protocol stack branch selected and deployed from a plurality of protocol stack branches loaded in advance in a software configuration mode according to application requirements and/or application scenes in a protocol control layer to obtain second processing information, and sending the second processing information to an adaptation layer;
and sending the second processing information to core network equipment of a communication operator or a communication equipment manufacturer through a pre-selected and configured docking interface in the adaptation layer from a plurality of docking interfaces set in the 4G small base station according to the application requirement and/or the application scene.
In a third aspect, an embodiment of the present invention provides a 4G small cell base station, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the program to implement the software-definition-based 4G small cell base station-side data transmission method according to any embodiment of the present invention.
In the technical scheme provided by the embodiment of the invention, a protocol framework of the 4G small base station is divided into an adaptation layer, a protocol control layer and a physical layer according to different functions, and at least one protocol stack branch is preloaded in the protocol control layer so that maintenance personnel can select a target protocol stack branch from a plurality of preloaded protocol stack branches for deployment by using a software configuration mode according to application needs and/or application scenes. Before the 4G small base station is formally put into use to transmit data uplink and downlink, firstly, according to application requirements and/or application scenes, a software configuration mode is utilized to select and deploy target protocol stack branches from a plurality of preloaded protocol stack branches for a protocol control layer so that the 4G small base station can be flexibly suitable for various application scenes, and matched protocol stack branches are selected and deployed, so that the beneficial effect of flexibly, simply and conveniently configuring and/or cutting a protocol stack of the protocol control layer according to the requirements of the application scenes is achieved, the operation of code reconstruction of maintenance personnel for cutting a general protocol during the change of the application scenes of the 4G small base station is saved, the code reconstruction workload is large, and errors are easy to occur.
Drawings
Fig. 1 is a schematic diagram of a protocol framework of a 4G small cell base station based on software definition in a first embodiment of the present invention;
fig. 2 is a flowchart of a data transmission method based on software definition at the 4G small base station side in the second embodiment of the present invention;
fig. 3 is a flowchart of a data transmission method based on software definition at the 4G small base station side in the third embodiment of the present invention;
fig. 4 is a schematic diagram of indoor coverage of a 4G small cell base station based on software definition in a fourth embodiment of the present invention;
fig. 5 is a schematic diagram of coverage of a 4G small base station urban blind area based on software definition in a fourth embodiment of the present invention;
fig. 6 is a schematic diagram of a software-defined transmission of a 4G femtocell private network in a fourth embodiment of the present invention;
fig. 7 is a schematic diagram of emergency communication of a 4G small cell base station based on software definition in the fourth embodiment of the present invention;
fig. 8 is a schematic hardware structure diagram of a 4G small cell base station based on software definition in the fifth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Before discussing exemplary embodiments in greater detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.
Example one
Fig. 1 is a schematic diagram of a protocol framework of a 4G small cell base station based on software definition according to an embodiment of the present invention, and is applicable to the 4G small cell base station in different signal coverage application scenarios. As shown in fig. 1, the protocol framework of the 4G small cell base station based on software definition provided in this embodiment is divided into three functional layers according to different functions and calculated amounts, which are an adaptation layer, a protocol control layer, and a physical layer that are sequentially connected. Wherein the content of the first and second substances,
the adaptive layer comprises at least one docking interface adapted to core network equipment of a communication operator or a communication equipment manufacturer, and is used for transmitting information received from the core network equipment to a protocol control layer through one docking interface which is preselected and configured from a plurality of docking interfaces set in a 4G small base station, or transmitting the information received from the protocol control layer to the core network equipment;
the protocol control layer analyzes information transferred to the protocol control layer according to a target protocol stack branch selected and deployed from a plurality of protocol stack branches loaded in advance in a software configuration mode, and transmits an analysis result to the physical layer or the adaptation layer, wherein the target protocol stack branch is determined according to application requirements and/or application scenes;
and the physical layer comprises an air interface and is used for processing the information received from the air interface and transmitting the information to the protocol control layer according to the target protocol stack branch deployed by the protocol control layer, or processing the information received from the protocol control layer and transmitting the information to the outside through the air interface.
Specifically, the adaptation layer provides a docking interface for docking with core network devices of different communication carriers or communication device manufacturers, and the docking interface provided by the adaptation layer should have an adaptation function because the docking interfaces of the core network devices of different communication carriers or communication device manufacturers are different, and particularly, the docking interface is controlled by a base station.
The physical layer is used for supporting basic algorithms of the physical layer, including channel coding and decoding, FFT (Fast Fourier transform), channel estimation, synchronous detection, CORDIC (Coordinate Rotation Digital Computer) Rotation, modulation and demodulation, frequency hopping control and logic, DFE (Digital Front-End).
The protocol Control layer is used for controlling the physical layer and analyzing data, and includes RRC (Radio Resource Control), MAC (Medium Access Control), and the like, and may also include a core network of a communication operator if necessary.
The Protocol Control layer specifically includes RRC, PDCP (Packet Data Convergence Protocol), RLC (Radio Link Control), and MAC of the Control plane, and PDCP, RLC, and MAC of the user plane; in a special emergency communication application scenario, the protocol control layer further needs to support a core network of a communication operator, and further includes a Non-access stratum (NAS) and other core network protocols.
Furthermore, the adaptation layer and the protocol control layer are deployed on a DSP (Digital Signal Processing) or an ARM core, and can be flexibly configured or updated through software; the physical layer is implemented by an FPGA (Field-Programmable Gate Array) or an ASIC (Application Specific Integrated circuit), and is composed of a plurality of basic modules.
According to the protocol framework, a user can select and deploy a target protocol stack branch from a plurality of protocol stack branches which are loaded in advance for the 4G small base station by using a software configuration mode according to actual requirements, so that the 4G small base station performs information processing according to the target protocol stack branch, the purpose of defining the 4G small base station by software is achieved, the beneficial effects of flexibly, simply and conveniently configuring and/or cutting a protocol control layer protocol stack according to the requirements of an application scene are achieved, and the operation of code reconstruction for cutting a general protocol by maintainers when the application scene of the 4G small base station is changed is saved.
Example two
Fig. 2 is a flowchart of a data transmission method at the 4G small base station side based on software definition according to a second embodiment of the present invention, which is applicable to a case where a 4G small base station performs data downlink transmission in various different signal coverage application scenarios, where protocol stack deployments of the 4G small base station are different in the different signal coverage application scenarios, and the method is executed by the 4G small base station using the 4G small base station protocol framework according to the second embodiment of the present invention.
As shown in fig. 2, the method of this embodiment specifically includes:
s210, receiving first information sent by core network equipment of a communication operator or a communication equipment manufacturer through a pre-selected and configured docking interface in the adaptation layer from a plurality of docking interfaces set in the 4G small cell base station according to application requirements and/or application scenes, and sending the first information to a protocol control layer.
The adaptation layer provides an adaptation function of a communication signal transmission mode with a communication operator or a communication equipment manufacturer, so that the 4G small base station can be flexibly docked with core network equipment of different communication operators or communication equipment manufacturers, for example, according to core network interface requirements of different communication operators, different communication equipment manufacturers or private network users, a docking interface of the adaptation layer is configured through software to complete docking with the core network of the communication operator or equipment manufacturer, and first information sent by the core network equipment of the communication operator or communication equipment manufacturer is received after the docking is successful.
The first information refers to data and signaling transmitted in a downlink transmission process, and similarly, the second information mentioned below refers to data and signaling transmitted in an uplink transmission process. It is to be noted that "first" and "second" in "first information" and "second information" are used to distinguish different objects, that is, distinguish a downlink transmission process and an uplink transmission process, and are not used to describe a specific order.
The docking interface is an interface connected with a core network on the 4G small cell, and the 4G small cell communicates with the core network equipment through the interface. The 4G small base station in this embodiment is provided with multiple interfaces, for example, an optical fiber interface, a microwave interface, a satellite interface, a network interface, and the like. Through the control parameter interface provided by the adaptation layer, one docking interface which is pre-selected and configured from a plurality of docking interfaces set in the 4G small base station can be selected and configured according to application requirements and/or application scenes, for example, the docking interface can be selected and configured according to the type of an actual interface which is docked with the adaptation layer, the interface type, the interface rate and the interface address of the docking interface of the adaptation layer can be configured, for example, a microwave interface, an optical fiber interface and a satellite interface, and the interface rate and the interface address are different.
S220, processing the second information through a target protocol stack branch selected and deployed from the preloaded multiple protocol stack branches in a software configuration mode according to application requirements and/or application scenes in the protocol control layer to obtain second processing information, and sending the second processing information to the adaptation layer.
The software configuration may be configured by software operation, such as a software programming configuration and a software instruction configuration.
The protocol stack branch is formed by cutting and combining the general protocols in advance according to different application requirements and/or application scenes. After determining the application requirements and/or application scenarios of the 4G small cell, selecting and deploying a target protocol stack branch for the protocol control layer by using a software configuration manner, for example, selecting and deploying by using a software instruction manner.
As a specific implementation manner of this embodiment, the protocol stack branch may include: a protocol stack a branch, a protocol stack B branch, a protocol stack C branch, a protocol stack D branch, a protocol stack E1 branch, a protocol stack E2 branch, and a protocol stack F branch. Wherein, the first and the second end of the pipe are connected with each other,
the protocol stack A is branched into a general base station protocol stack;
the protocol stack B branch is a protocol stack branch which deletes the RRC mobility management function on the basis of a general base station protocol stack;
the protocol stack C branch is a protocol stack branch which simplifies the X2 interface protocol of the base station on the basis of the general base station protocol stack;
the protocol stack branch D is a protocol stack branch which combines an MAC layer and an RLC layer on the basis of a general base station protocol stack;
the protocol stack E1 branch is a protocol stack branch for deleting the mobile management related content in the NAS on the basis of a general base station protocol stack;
the protocol stack E2 branch is a protocol stack branch for deleting the authentication content in the NAS on the basis of a general base station protocol stack;
the protocol stack F is a protocol stack branch that merges the simplified core network into an eNB (Evolved Node B) on the basis of the universal base station protocol stack.
The protocol stack A branch is suitable for an application scene of a common base station, the protocol stack B branch, the protocol stack C branch, the protocol stack D branch and the protocol stack E1 branch are suitable for a wireless communication transmission application scene with a fixed terminal position, and the protocol stack D branch, the protocol stack E2 branch and the protocol stack F branch are suitable for an emergency rescue wireless communication transmission application scene.
Typically, all protocol stack branches may be loaded in the 4G small cell in advance, and before the 4G small cell is put into use formally, a target protocol stack branch is selected from a plurality of preloaded protocol stack branches in a software configuration manner for deployment according to an application requirement and/or an application scenario, so that the protocol control layer can process received data and signaling according to the deployed target protocol stack branch.
Typically, according to application requirements and/or application scenarios, only the target protocol stack branch is loaded for the 4G small cell, and after the target protocol stack branch is deployed, the 4G small cell can be normally used in the corresponding application scenarios.
As a specific implementation manner of this embodiment, before S210, the method may further include: and selecting and deploying a target protocol stack branch matched with the protocol configuration selection instruction of the adaptation layer from a plurality of preloaded protocol stack branches for the protocol control layer according to the protocol configuration selection instruction of the adaptation layer.
The protocol configuration selection instruction of the adaptation layer mainly refers to a protocol branch selection instruction.
According to application requirements and/or application scenarios, selecting and deploying a target protocol stack branch from a plurality of preloaded protocol stack branches for a protocol control layer through a protocol branch selection instruction of an adaptation layer, wherein the deployment mode can be remote deployment, for example, selecting and deploying a target protocol stack branch from a plurality of protocol stack branches preloaded in a 4G small cell base station through the protocol branch selection instruction of the adaptation layer remotely, and if the application requirements and/or the application scenarios of the 4G small cell base station are adjusted, reselecting and deploying through the protocol selection instruction of the adaptation layer at any time (on the premise that a plurality of protocol stack branches are preloaded in the 4G small cell base station). It is worth pointing out that, when only the 4G small base station is loaded with the matched protocol stack branch according to the application requirement and/or the application scenario, the deployment cannot be performed through remote reconfiguration after the deployment, or only limited reconfiguration adjustment can be performed through the remote.
As another specific implementation manner of this embodiment, before S210, the method may further include: and selecting and deploying a target protocol stack branch or a pre-configured control parameter matched with the control parameter instruction from a plurality of pre-loaded protocol stack branches for the protocol control layer according to the control parameter instruction of the protocol control layer received through a control parameter configuration interface of the 4G small base station.
When the protocol stack branch is deployed for the protocol control layer, the control parameter command can be sent to the protocol control layer through the control parameter configuration interface so as to directly select and deploy the matched target protocol stack branch for the protocol control layer, and meanwhile, other control parameters can be configured for the protocol control layer through the control parameter command.
Specifically, the control parameter instruction of the protocol control layer may include a protocol branch selection instruction, and may further include an air interface mutual interference prevention parameter instruction, an air interface frame structure configuration instruction, and a scheduling control instruction, where the air interface mutual interference prevention parameter instruction and the air interface frame structure configuration instruction are used in an application scenario of a private network or an emergency network, and the scheduling control instruction is used in an application scenario of the emergency network. And sending an air interface mutual interference prevention parameter instruction, an air interface frame structure configuration instruction and a scheduling control instruction to the protocol control layer through a control parameter configuration interface of the protocol control layer, namely configuring mutual interference prevention parameters, an air interface frame structure and service scheduling control.
It is worth pointing out that, when only the 4G small cell is loaded with the matched protocol stack branch according to the application requirement and/or the application scenario, if a relatively large update is required after deployment, other protocol stack branches may be loaded at the near end of the 4G small cell via the control parameter configuration interface or other debugging interfaces, and then the matched target protocol stack branch is redeployed according to the requirement.
In this step, the protocol control layer processes the data and the signaling according to the pre-deployed target protocol stack branch, and the pre-deployed target protocol stack branch is matched with the application requirement and/or the application requirement and is a protocol obtained by cutting or combining the general protocol according to the application requirement and/or the application scenario, so that the 4G small base station implementing the data transmission method provided by this embodiment can be flexibly applied to various application scenarios.
And S230, processing the first processing information through a physical layer, and sending the first processing information to the outside through an air interface.
The physical layer can be realized by a chip, so that the volume of the 4G small base station can be reduced, for example, the volume of the 4G small base station is reduced to the size of a notebook from the size of the existing backpack or the size of a draw-bar box.
Wherein the physical layer implements channel coding and decoding, FFT, channel estimation, synchronization detection, cordic rotation, modulation and demodulation, frequency hopping control and logic, DFE (digital front end). Since the function of the physical layer is implemented by a chip, the function cannot be modified at will, but the selection of the parameter or path of the physical layer may be completed through a control parameter configuration interface of the protocol control layer, for example, whether the physical layer needs to support a DC (Direct Current) cancellation function, or whether the physical layer supports an IQ-Mismatch (IQ imbalance) function, or the number of multi-stage filters is configured according to the bandwidth resource of a user, so as to control the effective bandwidth.
And the physical layer processes the first processing information and sends the first processing information to the outside through an air interface so as to enable a User Equipment (UE) to receive the first processing information, and the 4G small cell completes data downlink transmission.
It is worth pointing out that the present embodiment relates to the tailoring and merging of the common protocols, and relates to the interface protocol stack between the UE and the eNB, and the tailoring and configuration of the interface protocol stack between the eNB and the eNB. If the 4G small cell adopting the protocol framework selects a common base station mode (for example, a protocol stack A branch is deployed), the common UE can communicate with the 4G small cell without any change; if the 4G small base station adopting the protocol framework selects an emergency rescue wireless communication mode (for example, one of a protocol stack D branch, a protocol stack E2 branch and a protocol stack F branch is deployed), the SIM card of common UE (user equipment) needs to be replaced or a special terminal after protocol cutting is used for communicating with the 4G small base station; if the 4G small cell base station adopting the protocol framework selects a wireless communication mode with a fixed terminal position (for example, one of a protocol stack B branch, a protocol stack C branch, a protocol stack D branch, and a protocol stack E1 branch is deployed), the terminal after the protocol cutting needs to be used to communicate with the 4G small cell base station.
According to the technical scheme provided by the embodiment of the invention, the protocol framework of the 4G small base station is divided into an adaptation layer, a protocol control layer and a physical layer according to different functions. The protocol control layer is pre-loaded with at least one protocol stack branch to enable maintenance personnel to selectively deploy according to application needs and/or application scenes.
Before the 4G small base station is put into use formally, firstly, configuring or selecting a corresponding interface, which can be a network port, an optical fiber interface, a microwave interface and a satellite interface, in an adaptation layer according to a use scene of a user, if the application scene is a general wireless communication network, updating or adjusting interface definition according to an interface of a core network of a communication operator or a communication equipment manufacturer butted with the 4G small base station, completing butt joint with the core network, and if the application scene is a special wireless communication network, customizing the interface of the adaptation layer according to the requirement of the user on the 4G small base station; and then, selecting and deploying a target protocol stack branch from the preloaded multiple protocol stack branches for the protocol control layer in advance according to the application requirement and/or the application scene. The target protocol stack branch is configured in advance according to an application scenario, for example, if the target protocol stack branch is a universal wireless communication network, only the RRC, PDCP, RLC, and MAC protocols of the control plane and the PDCP, RLC, and MAC protocols of the user plane need to be configured in the protocol stack branch; in case of a private network wireless communication network, in addition to the RRC, PDCP, RLC, MAC protocols of the control plane and the PDCP, RLC, MAC protocols of the user plane, NAS protocols of the control plane need to be configured in the protocol stack branch, and these protocols can be tailored. If the wireless communication network is a private network, the air interface frame structure of the private network and the routing scheduling control can be configured through the control parameter command via the control parameter configuration interface.
When the 4G small base station is in formal use, network frequency band scanning is firstly carried out, and a frequency band which does not conflict with the surrounding frequency band or a frequency band which is resided in the surrounding frequency band and has smaller interference power is selected. After selecting the frequency band, the 4G small cell establishes a cell, i.e., starts to send the synchronization sequence and the corresponding broadcast information, and establishes the picocell coverage.
According to the technical scheme, the 4G small base station can be flexibly suitable for various application scenes, the target protocol stack branch is selected and deployed from the preloaded multiple protocol stack branches, the beneficial effects that the protocol control layer protocol stack is flexibly, simply and conveniently configured and/or cut according to the requirements of the application scenes are achieved, the operation of code reconstruction by maintainers for cutting a general protocol during the application scene change of the 4G small base station is saved, the code reconstruction workload is large, and errors are easy to occur.
EXAMPLE III
Fig. 3 is a flowchart of a data transmission method on the 4G small base station side based on software definition according to a third embodiment of the present invention, and is applicable to a case where a 4G small base station performs uplink data transmission in various different signal coverage application scenarios, where protocol stack deployments of the 4G small base station are different in different signal coverage application scenarios.
The difference between this embodiment and the second embodiment is only that the transmission direction of data is different, the second embodiment is a data downlink transmission process, and this embodiment is a data uplink transmission process.
As shown in fig. 3, the method provided in this embodiment specifically includes:
s310, receiving second information sent by the user terminal through an air interface of a physical layer, and sending the second information to a protocol control layer.
Wherein the physical layer implements channel coding and decoding, FFT, channel estimation, synchronization detection, cordic rotation, modulation and demodulation, frequency hopping control and logic, DFE (digital front end).
The physical layer can be realized by a chip, so that the volume of the 4G small base station can be reduced, for example, the volume of the 4G small base station is reduced to the size of a notebook from the size of the existing backpack or the size of a draw-bar box.
S320, selecting and deploying a target protocol stack branch from the preloaded multiple protocol stack branches in a software configuration mode through the protocol control layer according to application requirements and/or application scenes, processing the second information to obtain second processing information, and sending the second processing information to the adaptation layer.
The protocol stack branch is formed by cutting and combining the general protocols in advance according to different application requirements and/or application scenes.
As a specific implementation manner of this embodiment, the protocol stack branch may include: protocol stack a branch, protocol stack B branch, protocol stack C branch, protocol stack D branch, protocol stack E1 branch, protocol stack E2 branch, and protocol stack F branch. Wherein, the first and the second end of the pipe are connected with each other,
the protocol stack A is branched into a universal base station protocol stack;
the protocol stack B branch is a protocol stack branch which deletes the RRC mobility management function on the basis of a general base station protocol stack;
the protocol stack C branch is a protocol stack branch which simplifies the X2 interface protocol of the base station on the basis of the general base station protocol stack;
the protocol stack branch is a protocol stack branch which combines an MAC layer and an RLC layer on the basis of a general base station protocol stack;
the protocol stack E1 branch is a protocol stack branch for deleting the mobile management related content in the NAS on the basis of a general base station protocol stack;
the protocol stack E2 branch is a protocol stack branch for deleting the authentication content in the NAS on the basis of a general base station protocol stack;
the protocol stack F is a protocol stack branch that merges the simplified core network into an eNB (Evolved Node B) on the basis of the universal base station protocol stack.
The protocol stack A branch is suitable for an application scene of a common base station, the protocol stack B branch, the protocol stack C branch, the protocol stack D branch and the protocol stack E1 branch are suitable for a wireless communication transmission application scene with a fixed terminal position, and the protocol stack D branch, the protocol stack E2 branch and the protocol stack F branch are suitable for an emergency rescue wireless communication transmission application scene.
As a specific implementation manner of this embodiment, before S310, the method may further include: and selecting and deploying a target protocol stack branch matched with the protocol configuration selection instruction of the adaptation layer for the protocol control layer from a plurality of preloaded protocol stack branches according to the protocol configuration selection instruction of the adaptation layer.
As another specific implementation manner of this embodiment, before S310, the method may further include: and selecting and deploying a target protocol stack branch or a pre-configured control parameter matched with the control parameter instruction from a plurality of pre-loaded protocol stack branches for the protocol control layer according to the control parameter instruction of the protocol control layer received through a control parameter configuration interface of the 4G small base station.
Specifically, the control parameter instruction of the protocol control layer may include a protocol branch selection instruction, and may further include an air interface mutual interference prevention parameter instruction, an air interface frame structure configuration instruction, and a scheduling control instruction, where the air interface mutual interference prevention parameter instruction and the air interface frame structure configuration instruction are used in an application scenario of a private network or an emergency network, and the scheduling control instruction is used in an application scenario of the emergency network. And sending an air interface mutual interference prevention parameter instruction, an air interface frame structure configuration instruction and a scheduling control instruction to the protocol control layer through a control parameter configuration interface of the protocol control layer, so that the mutual interference prevention parameter, the air interface frame structure and the service scheduling control can be configured.
S330, the second processing information is sent to core network equipment of a communication operator or a communication equipment manufacturer through a pre-selected and configured docking interface in the adaptation layer from a plurality of docking interfaces set in the 4G small base station according to application requirements and/or application scenes.
Specifically, the interface type of the docking interface of the adaptation layer may be an optical fiber interface, a microwave interface, a satellite interface, or an internet access, and may be selected according to the type of the actual interface to be docked with the adaptation layer, and the interface type, the interface rate, and the interface address of the docking interface of the adaptation layer may be configured, for example, the microwave interface, the optical fiber interface, and the satellite interface, and the interface rate and the interface address are different.
For the sake of brevity, the present embodiment is not explained in detail herein, and reference is made to the aforementioned embodiments for further description.
According to the technical scheme, the 4G small base station can be flexibly suitable for various application scenes, the target protocol stack branch is selected and deployed from the preloaded multiple protocol stack branches, the beneficial effects that the protocol control layer protocol stack is flexibly, simply and conveniently configured and/or cut according to the requirements of the application scenes are achieved, the operation of code reconstruction by maintainers for cutting a general protocol during the application scene change of the 4G small base station is saved, the code reconstruction workload is large, and errors are easy to occur.
Example four
On the basis of the foregoing embodiments, the deployment of the 4G small cell will be explained in this embodiment by taking several common application scenarios of the 4G small cell as examples.
Indoor coverage application scene of (I) 4G small base station
As shown in fig. 4, since the 4G small base station 401 is small and light, it can be installed in a wall-mounted or ceiling-mounted manner. In this application scenario, the docking interface of the adaptation layer may be an optical fiber interface, and is connected to the core network of the communication carrier or the communication equipment manufacturer through an optical fiber 403. Because all there is the fiber interface passageway in the current building, consequently need not to carry out the fiber optic cable wiring alone when installing 4G little basic station 401, simple convenient.
Moreover, because the 4G small cell 401 has low power consumption, it is only necessary to use common civil power supply, in order to prevent the 4G small cell 401 from powering down due to sudden power failure, a rechargeable battery may be configured in the accessory device of the 4G small cell 401, and meanwhile, the heat dissipation problem (low power consumption) of the 4G small cell 401 does not need to be considered, and the requirement on the installation environment is not high, and the normal room temperature is only required.
The 4G small base station 401 may obtain a synchronous clock signal of 1PPS (Pulse Per Second) through the beidou or GPS (Global Positioning System), and the beidou or GPS antenna 402 may be disposed outdoors or indoors near a window.
The protocol framework of the 4G small cell base station 401 is divided into an adaptation layer, a protocol control layer and a physical layer according to different functions. The protocol control layer is pre-loaded with at least one protocol stack branch to enable maintenance personnel to selectively deploy according to application needs and/or application scenes. The protocol stack a branch is applicable to the application scenario.
Before the 4G small cell 401 is put into use in this application scenario formally, first, according to this application scenario, a corresponding interface is configured or selected as an optical fiber interface on an adaptation layer, an optical fiber interface rate is configured through a control parameter configuration interface, and according to interface information of a core network of a communication operator or a communication equipment manufacturer that is docked with the 4G small cell 401, communication operator or communication equipment manufacturer information and a corresponding core network IP address are configured through the control parameter configuration interface, a docking interface definition is updated or adjusted, and docking with the core network is completed.
And then, according to the application scene, a matched protocol stack A branch is pre-deployed for the protocol control layer in advance. The protocol stack branch a is preconfigured according to the application scenario, for example, if the protocol stack branch a is a universal wireless communication network, only RRC, PDCP, RLC, and MAC protocols of the control plane and PDCP, RLC, and MAC protocols of the user plane need to be configured in the protocol stack branch a; in case of a private network wireless communication network, the protocol stack a branch needs to configure a NAS protocol of the control plane in addition to the RRC, PDCP, RLC, MAC protocol of the control plane and the PDCP, RLC, MAC protocol of the user plane.
When the 4G small cell base station 401 is formally applied to the application scenario, first, network frequency band scanning is performed, and a frequency band that does not conflict with the surrounding frequency band or a frequency band that has a smaller interference power and resides in the surrounding frequency band is selected. After selecting the frequency band, the 4G small cell 401 establishes a cell, that is, starts to send the synchronization sequence and the corresponding broadcast information, and establishes the picocell coverage.
Application scene of urban blind area coverage of (II) 4G small base station
As shown in fig. 5, since there are many buildings 404 in urban areas, many blind areas 405 occur, and it is inconvenient to deploy optical fibers around these blind areas 405, a 4G small cell 401 is connected to a core network 407 of a communication carrier or a communication equipment manufacturer by means of microwaves 406.
The application scenario is basically similar to the indoor coverage application scenario of the 4G small cell, and the protocol stack a branch is applicable to the application scenario, which is different from that: the butt joint interface of the adaptation layer in the application scene selects a microwave interface, and the microwave interface rate is configured through controlling the parameter configuration interface, so that the adaptation layer can establish connection with a core network of a communication operator or a communication equipment manufacturer, but not through an optical fiber interface.
Application scenario of (III) 4G small base station private network transmission
As shown in fig. 6, taking an application scenario of highway monitoring as an example, the 4G small cell 401 can be conveniently installed on street lamps on both sides of a highway, and can be powered by solar energy + street lamps + storage batteries. The 4G small base station 401 is connected to a camera 408 installed on the highway through an air interface, and after receiving data shot by the camera 408, transmits the data to the back-end monitoring platform through an optical fiber 403.
Because the installation position of the camera 408 is semi-static and cannot move in real time, the protocol stack in the 4G small cell base station 401 can be cut, for example, the mobility management function of the RRC layer is removed, the authentication of the NAS and the mobility processing in the idle state are removed, and the related signaling and protocol for the user cell switching in the X2 interface protocol of the base station are removed; and because the service is single, the RLC layer and the MAC layer can be combined, the data transmission delay is reduced, and the advantages of a private network are exerted. Therefore, the foregoing protocol stack B branch, protocol stack C branch, protocol stack D branch, and protocol stack E1 branch are applicable to this application scenario.
The difference between the application scenario and the 4G small cell indoor coverage application scenario is that the protocol stack branches deployed at the protocol control layer are different, because of the particularity of the application scenario, the camera 408 and the 4G small cell 401 are in a long-chain connection mode, and can cut out the authentication of the NAS in the protocol stack and the mobility processing in an idle state; the installation position of the camera is semi-static and cannot move in real time, and the mobility management function of the RRC layer can be cut off; the camera has single service, and the RLC layer and the MAC layer can be combined.
That is, according to the application scenario, a matched protocol stack branch is deployed for the protocol control layer of the 4G small cell, for example, the protocol stack B branch, the protocol stack C branch, the protocol stack D branch, and the protocol stack E1 branch, which not only ensures implementation flexibility and transmission reliability, but also exerts the advantages of a private network, and by cutting the protocol stack, transmission delay is reduced. Meanwhile, the mode of cutting the protocol stack is simple and convenient, and the selection and the allocation of the instruction can be realized through the protocol branch.
(IV) 4G small base station emergency communication application scene
As shown in fig. 7, the present application scenario is for emergency communication. The 4G small cell 401 provided by the embodiment of the invention is realized by adopting a multilayer architecture and a core chip, rather than a mode of adopting a plurality of circuit boards, and the volume of the 4G small cell is much smaller than that of the existing 4G emergency small cell. The size of the existing minimum 4G private network emergency small base station is one backpack size, but the 4G small base station 401 realized by adopting the technical framework provided by the embodiment of the invention and the core chip has the size of only half backpack, and the rest space can be reserved for supplying power to the storage battery, so that the cruising ability of the 4G small base station 401 is effectively improved.
In this application scenario, when the 4G small cell base station 401 is used for emergency communication, a core network of a communication operator may be configured in a protocol control layer, and meanwhile, a corresponding emergency communication terminal may be implemented in the following two ways: (1) Under the condition of not changing frequency points, after the SIM card is replaced by the common terminal 409, the 4G small base station 401 can be accessed, and data storage, processing and forwarding are carried out on the 4G small base station 401, so that the emergency terminal has the advantages of low cost and the defect that the card replacing process of the common terminal cannot be lacked; (2) Under the private network frequency point, a special emergency terminal 409 is configured (the corresponding processes such as authentication and the like in the special terminal can be cut) to communicate with the 4G small base station 401, and data storage, processing and forwarding are carried out on the 4G small base station 401.
In the application scenario, the interface type of the adaptation layer docking interface is a satellite interface, a core network protocol of a communication operator is deployed in advance in a protocol control layer according to application requirements and/or an application scenario (for example, an emergency rescue application scenario), the protocol stack branch D, the protocol stack branch E2 and the protocol stack branch F are suitable for the application scenario, the matching deployment mode of the protocol stack branch is simple and convenient, and the command matching deployment can be selected through the protocol branch.
Since the 4G small cell 401 communicates with the communication satellite 410, in consideration of communication cost, the 4G small cell 401 can forward important information through the satellite interface of the 4G small cell 401 during data uplink transmission, and unimportant information is stored locally in the small cell.
Specifically, S220 in the uplink data transmission process of the 4G small cell in the second embodiment may specifically be: selecting and deploying a target protocol stack branch from a plurality of preloaded protocol stack branches and further processing the second information by the core network protocol in a software configuration mode according to application requirements and/or application scenes in a protocol control layer to obtain second preprocessing information; and screening the second preprocessing information according to a preset information screening rule to obtain second processing information, and sending the second processing information to an adaptation layer.
In the uplink data transmission process, first, second information sent by a user terminal is received through an air interface of a physical layer and sent to a protocol control layer, then, after the second information is processed through a target protocol stack branch selected and deployed from a plurality of protocol stack branches loaded in advance and a deployed core network protocol through the protocol control layer according to application requirements and/or application scenes by using a software configuration mode, second preprocessing information which can be sent to an adaptation layer is obtained, in view of the problem of high cost of satellite communication, at the moment, the second preprocessing information can be screened according to a preset information screening rule, unimportant second preprocessing information is filtered out, important second preprocessing information is screened out to serve as second processing information, the second processing information is sent to the adaptation layer, and finally, the second processing information is sent to a communication satellite through a satellite interface selected and configured in advance in the adaptation layer to be forwarded.
Typically, as shown in fig. 7, the on-site emergency command sub-platform 411 may be configured to perform a second pre-processing information screening operation, the emergency terminal screens out important information and unimportant information according to a preset information screening rule through the 4G small cell base station and the on-site emergency command sub-platform 411, the important information is forwarded to the emergency command center 412 through satellite communication 410, and the unimportant information is stored in a storage device carried by the 4G small cell base station 401, so as to facilitate subsequent on-site analysis.
And the information sent by the emergency command center 412 is sent to the 4G small cell site 401 through satellite communication 410, and the 4G small cell site 401 broadcasts or sends the information to the designated emergency terminal 409.
The difference between the present application scenario and the aforementioned three application scenarios is: target protocol stack branches deployed by a protocol control layer are different, a core network of a communication operator is also deployed in the 4G small base station, a docking interface of an adaptation layer is a satellite interface, and communication information is sent to a command center through satellite communication in a screened manner; the core network is deployed in the 4G small base station, a common mobile terminal can be used as an emergency mobile terminal after updating the SIM card, disaster relief and emergency are facilitated, the special mobile terminal can be conveniently accessed to the 4G small base station after the frequency point is adjusted, and the access time delay can be reduced by cutting a protocol stack; meanwhile, the 4G small base station can be externally connected with a large-capacity storage device and a field emergency command sub-platform.
For the sake of brevity, the present embodiment is not explained in detail herein, and reference is made to the aforementioned embodiments for further description.
EXAMPLE five
Fig. 8 is a schematic diagram of a hardware structure of a 4G small cell base station according to a fourth embodiment of the present invention, and as shown in fig. 8, the apparatus includes:
one or more processors 510, one processor 510 being illustrated in FIG. 8;
a memory 520;
a physical layer processing module 530;
and a radio frequency module 540.
The processor 510 may be a CPU (Central Processing Unit), or a DSP (Digital Signal Processing); the physical layer processing module 530 may be an FPGA (Field-Programmable Gate Array) or an ASIC (Application Specific Integrated Circuits).
The processor 510 and memory 520 in the device may be connected by a bus or other means. The data passes through the processor 510, and then reaches the physical layer processing module 530 (FPGA or ASIC) for physical layer processing, and then sends to the rf module 540 for transmission, and vice versa.
The memory 520 is a non-transitory computer-readable storage medium, and can be used to store a software program, a computer-executable program, such as a data transmission method based on a software-defined 4G small base station side in the embodiment of the present invention, including:
receiving first information sent by core network equipment of a communication operator or a communication equipment manufacturer through a pre-selected and configured docking interface in an adaptation layer from a plurality of docking interfaces set in a 4G small base station according to application requirements and/or application scenes, and sending the first information to a protocol control layer;
processing the first information through a target protocol stack branch selected and deployed from a plurality of preloaded protocol stack branches in a software configuration mode according to application requirements and/or application scenes in a protocol control layer to obtain first processing information, and sending the first processing information to a physical layer;
and after the first processing information is processed by the physical layer, the first processing information is sent to the outside through an air interface.
Still another example is a program instruction corresponding to a data transmission method based on a software-defined 4G small base station in an embodiment of the present invention, where the program instruction includes:
receiving second information sent by a user terminal through an air interface of a physical layer, and sending the second information to a protocol control layer;
processing the second information through a target protocol stack branch selected and deployed from a plurality of protocol stack branches loaded in advance in a software configuration mode according to application requirements and/or application scenes in a protocol control layer to obtain second processing information, and sending the second processing information to an adaptation layer;
and sending the second processing information to core network equipment of a communication operator or a communication equipment manufacturer through a pre-selected and configured docking interface in the adaptation layer from a plurality of docking interfaces set by the 4G small cell base station according to application requirements and/or application scenes.
The processor 510 executes various functional applications of the computer device and data processing by running software program instructions stored in the memory 520, namely, implementing the data transmission method on the 4G small base station side of the above method embodiment.
The memory 520 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the computer device, and the like. Further, the memory 520 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the particular embodiments described herein, and that various obvious changes, rearrangements and substitutions will now be apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in some detail by the above embodiments, the invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the invention, and the scope of the invention is determined by the scope of the appended claims.
Claims (8)
1. A data transmission method of a 4G small base station side based on software definition is characterized by comprising the following steps:
receiving first information sent by core network equipment of a communication operator or a communication equipment manufacturer through a pre-selected and configured docking interface in an adaptation layer from a plurality of docking interfaces set in a 4G small base station according to application requirements and/or application scenes, and sending the first information to a protocol control layer;
processing the first information through a target protocol stack branch selected and deployed from a plurality of protocol stack branches loaded in advance in a software configuration mode according to application requirements and/or application scenes in a protocol control layer to obtain first processing information, and sending the first processing information to a physical layer;
after the first processing information is processed by a physical layer, the first processing information is sent out through an air interface;
the method further comprises the following steps: selecting and deploying a target protocol stack branch matched with the protocol configuration selection instruction of the adaptation layer from a plurality of preloaded protocol stack branches for the protocol control layer according to the protocol configuration selection instruction of the adaptation layer;
wherein the protocol configuration selection instruction of the adaptation layer is a protocol branch selection instruction;
selecting and deploying a target protocol stack branch from a plurality of protocol stack branches which are preloaded for a protocol control layer through a protocol branch selection instruction of an adaptation layer according to application requirements and/or application scenes, wherein the deployment mode is remote deployment; when the matched protocol stack branches are loaded for the 4G small base station according to the application requirements and/or application scenes, the deployment cannot be carried out through remote re-matching, and only limited matching adjustment can be carried out remotely;
the protocol stack branch is formed by cutting and combining the universal protocol in advance according to different application requirements and/or application scenes;
the protocol stack branch comprises at least one of:
a protocol stack A branch, a protocol stack B branch, a protocol stack C branch, a protocol stack D branch, a protocol stack E1 branch, a protocol stack E2 branch and a protocol stack F branch; wherein the content of the first and second substances,
the protocol stack A branch is a universal base station protocol stack, the protocol stack B branch is a protocol stack branch which deletes the RRC mobility management function on the basis of the universal base station protocol stack, the protocol stack C branch is a protocol stack branch which simplifies the X2 interface protocol of the base station on the basis of the universal base station protocol stack, and the protocol stack D branch is a protocol stack branch which combines the MAC layer and the RLC layer on the basis of the universal base station protocol stack; the protocol stack E1 branch is a protocol stack branch for deleting the mobile management related content in the NAS on the basis of a general base station protocol stack; the protocol stack E2 branch is a protocol stack branch for deleting the authentication content in the NAS on the basis of a general base station protocol stack; the protocol stack F branch is a protocol stack branch which combines a simplified core network in an eNB on the basis of a general base station protocol stack;
the protocol stack A branch is suitable for an application scene of a common base station, the protocol stack B branch, the protocol stack C branch, the protocol stack D branch and the protocol stack E1 branch are suitable for a wireless communication transmission application scene with a fixed terminal position, and the protocol stack D branch, the protocol stack E2 branch and the protocol stack F branch are suitable for an emergency rescue wireless communication transmission application scene.
2. A data transmission method of a 4G small base station side based on software definition is characterized by comprising the following steps:
receiving second information sent by a user terminal through an air interface of a physical layer, and sending the second information to a protocol control layer;
processing the second information through a target protocol stack branch selected and deployed from a plurality of protocol stack branches loaded in advance in a software configuration mode according to application requirements and/or application scenes in a protocol control layer to obtain second processing information, and sending the second processing information to an adaptation layer;
sending the second processing information to core network equipment of a communication operator or a communication equipment manufacturer through a pre-selected and configured docking interface in an adaptation layer from a plurality of docking interfaces set in a 4G small base station according to application requirements and/or application scenes;
the method further comprises the following steps: selecting and deploying a target protocol stack branch matched with the protocol configuration selection instruction of the adaptation layer from a plurality of preloaded protocol stack branches for the protocol control layer according to the protocol configuration selection instruction of the adaptation layer;
wherein the protocol configuration selection instruction of the adaptation layer is a protocol branch selection instruction;
selecting and deploying a target protocol stack branch from a plurality of protocol stack branches which are preloaded for a protocol control layer through a protocol branch selection instruction of an adaptation layer according to application requirements and/or application scenes, wherein the deployment mode is remote deployment; when the matched protocol stack branches are loaded for the 4G small base station according to the application requirements and/or application scenes, the deployment cannot be carried out through remote re-matching, and only limited matching adjustment can be carried out remotely;
the protocol stack branch is formed by cutting and combining the universal protocol in advance according to different application requirements and/or application scenes;
the protocol stack branch comprises at least one of:
a protocol stack A branch, a protocol stack B branch, a protocol stack C branch, a protocol stack D branch, a protocol stack E1 branch, a protocol stack E2 branch and a protocol stack F branch; wherein the content of the first and second substances,
the protocol stack A branch is a universal base station protocol stack, the protocol stack B branch is a protocol stack branch which deletes the RRC mobility management function on the basis of the universal base station protocol stack, the protocol stack C branch is a protocol stack branch which simplifies the X2 interface protocol of the base station on the basis of the universal base station protocol stack, and the protocol stack D branch is a protocol stack branch which combines the MAC layer and the RLC layer on the basis of the universal base station protocol stack; the protocol stack E1 branch is a protocol stack branch for deleting the mobile management related content in the NAS on the basis of a general base station protocol stack; the protocol stack E2 branch is a protocol stack branch for deleting the authentication content in the NAS on the basis of a general base station protocol stack; the protocol stack F branch is a protocol stack branch which combines a simplified core network in an eNB on the basis of a general base station protocol stack;
the protocol stack A branch is suitable for an application scene of a common base station, the protocol stack B branch, the protocol stack C branch, the protocol stack D branch and the protocol stack E1 branch are suitable for a wireless communication transmission application scene with a fixed terminal position, and the protocol stack D branch, the protocol stack E2 branch and the protocol stack F branch are suitable for an emergency rescue wireless communication transmission application scene.
3. The method of claim 1 or 2, further comprising:
selecting and deploying a target protocol stack branch or a pre-configured control parameter matched with the control parameter instruction from a plurality of pre-loaded protocol stack branches for the protocol control layer according to the control parameter instruction of the protocol control layer received through a control parameter configuration interface of the 4G small cell.
4. The method of claim 3, wherein the control parameter command of the protocol control layer comprises at least one of:
a protocol branch selection instruction, an air interface mutual interference prevention parameter instruction, an air interface frame structure configuration instruction and a scheduling control instruction;
the air interface mutual interference prevention parameter instruction and the air interface frame structure configuration instruction are used for a special network or an emergency network, and the scheduling control instruction is used for the emergency network.
5. The method according to claim 1 or 2, characterized in that the interface type, interface rate and interface address of the interfacing interface of the adaptation layer are configurable;
the interface type includes at least one of:
fiber interface, microwave interface, satellite interface and net gape.
6. The method of claim 1, wherein the interface type of the adaptation layer docking interface is a satellite interface; and the protocol control layer also deploys the core network protocol of a communication operator in advance according to the application requirements and/or application scenes.
7. The method of claim 2, wherein the interface type of the adaptation layer docking interface is a satellite interface; a core network protocol of a communication operator is also deployed in advance in the protocol control layer according to application requirements and/or application scenes;
processing the second information through a target protocol stack branch selected and deployed from a plurality of protocol stack branches loaded in advance in a software configuration mode according to application requirements and/or application scenes in a protocol control layer to obtain second processing information, and sending the second processing information to an adaptation layer, wherein the second processing information comprises:
selecting and deploying a target protocol stack branch from a plurality of preloaded protocol stack branches and the core network protocol in a software configuration mode according to application requirements and/or application scenes in a protocol control layer to further process the second information to obtain second preprocessing information;
and screening the second preprocessing information according to a preset information screening rule to obtain second processing information, and sending the second processing information to an adaptation layer.
8. A 4G small cell comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to implement the software-defined 4G small cell-based data transmission method according to any one of claims 1 to 7.
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| US10367677B2 (en) * | 2016-05-13 | 2019-07-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Network architecture, methods, and devices for a wireless communications network |
| US10630410B2 (en) * | 2016-05-13 | 2020-04-21 | Telefonaktiebolaget Lm Ericsson (Publ) | Network architecture, methods, and devices for a wireless communications network |
| US10797731B2 (en) * | 2017-03-10 | 2020-10-06 | Microsoft Technology Licensing, Llc | Software defined radio for auxiliary receiver |
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| US6134230A (en) * | 1997-08-29 | 2000-10-17 | Telefonaktiebolaget Lm Ericsson | Method for selecting a link protocol for a transparent data service in a digital communications system |
| CN104768199A (en) * | 2015-04-17 | 2015-07-08 | 北京邮电大学 | Data packet transmission method and device |
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