CN110493822B - Point-to-multipoint communication device and system - Google Patents
Point-to-multipoint communication device and system Download PDFInfo
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- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0268—Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
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Abstract
The application relates to a point-to-multipoint communication device and a point-to-multipoint communication system, wherein different air interface service streams are divided according to user requirements according to QoS attributes (such as priorities) of remote machine services, and then data transmission is carried out according to the different air interface service streams, so that QoS attributes of different users and different services are accurately guaranteed and managed, complex application scenes and requirements are adapted, and the requirements of different users are met.
Description
Technical Field
The present application relates to the field of microwave communications technologies, and in particular, to a point-to-multipoint communication apparatus and system.
Background
The microwave communication technology can be divided into point-to-point networking communication and point-to-multipoint networking communication, and due to the characteristics of flexibility and convenience of a microwave communication use mode, large bandwidth, high speed, small transmission delay and the like, microwave transmission is widely applied to various application scenes, for example: the method comprises the following scenes of 4G/5G network return, video monitoring return, broadband access, enterprise private lines, operator backbone network erection, rural network return and the like.
In the point-to-multipoint networking communication scheme, the entire microwave communication system is a distributed radio system, and is generally composed of a communication network composed of a central station (near-end unit) and a terminal station (far-end unit), and can spatially transmit information from one point to multipoint. The near-end machine forms a circular wireless area covering 360 degrees, and a communication line can be established on one side of the far-end machine only by arranging a small directional antenna facing the direction of the near-end machine. Each remote unit may be assigned tens or hundreds of service subscribers and may be extended to subscribers hundreds of miles away through the relay station if necessary. Therefore, the wireless frequency is effectively utilized, the equipment utilization rate is high, and the monitoring system of the near-end machine can efficiently monitor the state of each service user line and the equipment state and maintain the user.
However, in the current point-to-multipoint communication system, generally, when different time-frequency resources are divided for different remote terminals, the Quality of Service (QoS) attribute guarantee and management for each Service is not accurate.
Disclosure of Invention
In view of the foregoing, it is necessary to provide a point-to-multipoint communication apparatus and system for solving the technical problem that QoS attribute guarantee and management for each service is not accurate when different remote terminals divide different time-frequency resources in the above current point-to-multipoint communication system.
In a first aspect, an embodiment of the present application provides a point-to-multipoint communication apparatus, including: the system comprises a complex stream management module, an air interface scheduling module, a physical layer module and a radio frequency processing module;
the complex flow management module is used for managing QoS attribute data of a plurality of remote machine services; the management comprises dividing different air interface service flows for the service data of the remote terminal according to different QoS requirements;
the air interface scheduling module is used for determining the data volume of each air interface service flow according to the QoS requirement of each air interface service flow divided by the complex flow management module and sending the service data corresponding to each data volume to the physical layer module;
the physical layer module is used for receiving the service data sent by the air interface scheduling module, modulating and coding the service data and then sending the service data to the radio frequency processing module;
and the radio frequency processing module is used for receiving the modulated and coded service data sent by the physical layer module and converting the modulated and coded service data into a radio frequency signal for sending.
In one embodiment, the complex flow management module includes a complex flow classification unit, a soft switch unit, and an air interface flow management unit;
the complex flow classification unit is used for carrying out flow strategy control and QoS attribute modification on the service data according to the user requirements and sending the controlled and modified service data to the soft switch unit;
the soft exchange unit is used for dividing the controlled and modified service data into data streams of different remote terminals according to the MAC address and sending the divided service data to the air interface stream management unit;
and the air interface flow management unit is used for dividing the service data sent by the soft switching unit into different air interface service flows according to different QoS requirements on an air interface and performing queue management on each air interface service flow.
In one embodiment, the complex flow classification unit is further configured to perform at least one of port marking, traffic shaping, traffic policing, packet filtering, redirection, and adapting an ethernet-side QoS attribute.
In one embodiment, the air interface scheduling module is configured to determine the size of the service data to be sent of each air interface service flow through a preset dynamic scheduling algorithm according to the QoS requirement, air interface physical resources, and a channel condition of each air interface service flow, and send the service data to the physical layer module through the channel physical frame resources according to a preset physical frame format.
In one embodiment, the complex stream classification unit is disposed in a switch chip; the soft exchange unit, the air interface flow management unit and the air interface scheduling module are arranged in a Central Processing Unit (CPU); the physical layer module is arranged in the FPGA.
In one embodiment, the complex stream classification unit is disposed in a switch chip; the soft switch unit, the air interface flow management unit, the air interface scheduling module and the physical layer module are arranged in the FPGA.
In one embodiment, the complex stream classification unit, the soft switch unit, the air interface stream management unit, the air interface scheduling module, and the physical layer module are all disposed in an FPGA.
In one embodiment, the soft switching unit and the air interface flow management unit are implemented by a plurality of logic queue interfaces, and the plurality of logic queue interfaces, the complex flow management module, the air interface scheduling module, and the physical layer are collectively arranged in an FPGA.
In one embodiment, the rf processing module is further configured to receive the rf signal, convert the rf signal, process the rf signal, and transmit the processed rf signal to the physical layer module for analysis.
In a second aspect, an embodiment of the present application provides a point-to-multipoint communication system, including: a near-end machine and a far-end machine; the near-end machine comprises the point-to-multipoint communication device provided by the embodiment of the first aspect.
In a third aspect, an embodiment of the present application provides a point-to-multipoint communication system, including: a near-end machine and a far-end machine; the remote terminal comprises the point-to-multipoint communication device provided by the embodiment of the first aspect.
According to the point-to-multipoint communication device and system provided by the embodiment of the application, different air interface service flows are divided according to user requirements according to QoS attributes (such as priorities) of remote machine services, and then data transmission is performed according to the different air interface service flows, so that QoS attributes of different services of different users are accurately guaranteed and managed, complex application scenes and requirements are adapted more, and the requirements of different users are met.
Drawings
Fig. 1 is a block diagram of a point-to-multipoint communication device according to an embodiment;
fig. 2 is a block diagram of a point-to-multipoint communication device according to an embodiment;
fig. 3 is a block diagram of a point-to-multipoint communication device according to an embodiment;
fig. 4 is a block diagram of a point-to-multipoint communication device according to an embodiment;
fig. 5 is a block diagram of a point-to-multipoint communication device according to an embodiment;
fig. 6 is a block diagram of a point-to-multipoint communication device according to an embodiment;
fig. 7 is a block diagram of a point-to-multipoint communication device according to an embodiment;
fig. 8 is a diagram of a point-to-multipoint communication system, according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments.
The terms "first," "second," "third," and "fourth," etc. in the description and claims of this application and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
In one embodiment, fig. 2 provides a point-to-multipoint communication apparatus comprising: the system comprises a complex stream management module, an air interface scheduling module, a physical layer module and a radio frequency processing module; the complex flow management module is used for managing QoS attribute data of a plurality of remote machine services; the management comprises dividing different air interface service flows for the service data of the remote terminal according to different QoS requirements; the air interface scheduling module is used for determining the data volume of each air interface service flow according to the QoS requirement of each air interface service flow divided by the complex flow management module and sending the service data corresponding to each data volume to the physical layer module; the physical layer module is used for receiving the service data sent by the air interface scheduling module, modulating and coding the service data and then sending the service data to the radio frequency processing module; and the radio frequency processing module is used for receiving the modulated and coded service data sent by the physical layer module and converting the modulated and coded service data into a radio frequency signal for sending.
In this embodiment, the complex stream management module, the air interface scheduling module, the physical layer module, and the radio frequency processing module are connected in a manner that the complex stream management module is connected to the air interface scheduling module, the air interface scheduling module is connected to the physical layer module, the physical layer module is connected to the radio frequency processing module, and corresponding data flows from the complex stream management module to the air interface scheduling module, from the air interface scheduling module to the physical layer module, and then to the radio frequency processing module.
The complex stream management module is used for managing QoS attribute (such as priority) data of a plurality of remote machine services; the management comprises dividing different air interface service flows for the service data of the remote terminal according to different QoS requirements; for example, after the complex stream management module accepts the QoS attributes of the services of the remote terminals on the ethernet side, the complex stream management module may divide the service data into different data streams according to different remote terminals, then continuously classify the service data based on the QoS attributes of the service data, divide different air interface service streams, and then send the divided service data to the air interface scheduling module according to the different air interface service streams.
The system comprises a complex flow management module, an air interface scheduling module, a physical layer module and a data transmission module, wherein the air interface scheduling module is used for determining the data volume of each air interface service flow according to the QoS requirement of each air interface service flow divided by the complex flow management module and transmitting the service data corresponding to each data volume to the physical layer module; optionally, in an embodiment, the air interface scheduling module is configured to determine, according to the QoS requirement, air interface physical resources, and a channel condition of each air interface service stream, a size of service data to be sent of each air interface service stream through a preset dynamic scheduling algorithm, and send the service data to the physical layer module through the channel physical frame resources according to a preset physical frame format. Specifically, the air interface scheduling module takes each air interface service flow as a unit, obtains the QoS requirement, air interface physical resources, channel conditions and other influencing factors of each air interface service flow, calls a preset dynamic scheduling algorithm to determine the size of the transmission data of each air interface service flow, and transmits the service data to be transmitted through the channel physical frame resources according to a preset physical frame format based on the determined size of the flow data of each air interface service flow, that is, transmits the service data to be transmitted to the physical layer module.
The physical layer module is used for receiving the service data sent by the air interface scheduling module, modulating and coding the service data and then sending the service data to the radio frequency processing module; specifically, after receiving the service data sent by the air interface scheduling module, the physical layer module modulates and encodes the service data to form a physical frame (service data) and then sends the physical frame (service data) to the radio frequency processing module, or, if the receiving end of the physical layer module receives the physical frame sent by the radio frequency processing module, demodulates and decodes the physical frame to form a data packet to be sent to the ethernet side.
The radio frequency processing module is used for receiving the modulated and coded service data sent by the physical layer module and converting the modulated and coded service data into a radio frequency signal to be sent. Specifically, the radio frequency processing module includes an RF SoC (radio frequency module) and an antenna module, where the radio frequency module is configured to receive service data (in a preset physical frame format) provided by the physical layer module, perform signal conversion, such as DA conversion, and then up-convert the converted data to a transmission frequency point, so as to form a radio frequency signal and send the radio frequency signal through the antenna module. Optionally, in an embodiment, the radio frequency processing module is further configured to receive a radio frequency signal, convert the radio frequency signal for processing, and transmit the radio frequency signal to the physical layer module for analysis. Specifically, the antenna module in the rf processing module may further receive an external rf signal, perform signal conversion, such as AD conversion, on the received rf signal through the rf module, and then send the converted signal to the physical layer module, so that the physical layer module demodulates and decodes the signal, and transmits a demodulated and decoded data packet to the ethernet side.
According to the point-to-multipoint communication device provided by the embodiment, different air interface service streams are divided according to the requirements of users according to the QoS attributes (such as priorities) of the services of each remote terminal, and then data transmission is performed according to the different air interface service streams, so that QoS attributes of different users and different services are accurately guaranteed and managed, complex application scenes and requirements are adapted more, and the requirements of different users are met.
Based on the functions and data flow direction of the complex stream management module, the air interface scheduling module, the physical layer module, and the radio frequency processing module mentioned in the above embodiments, in an embodiment, as shown in fig. 2, the complex stream management module includes a complex stream classification unit, a soft switching unit, and an air interface stream management unit; the complex flow classification unit is used for carrying out flow strategy control and QoS attribute modification on the service data according to the user requirements and sending the controlled and modified service data to the soft switch unit; a soft switching unit, configured to divide the controlled and modified service data into data streams of different remote terminals according to a Media Access Control (MAC) Address, and send the divided service data to an air interface stream management unit; and the air interface flow management unit is used for dividing the service data sent by the soft switching unit into different air interface service flows according to different QoS requirements on an air interface and performing queue management on each air interface service flow.
The complex flow classification unit is used for carrying out flow strategy control and QoS attribute modification on the service data according to the user requirements and sending the controlled and modified service data to the soft switch unit; optionally, in an embodiment, the complex flow classification unit is further configured to perform at least one of port marking, traffic shaping, traffic policing, packet filtering, redirection, and adapting an ethernet-side QoS attribute. Specifically, the functions implemented by the complex flow classification unit include port marking, flow shaping, flow monitoring, packet filtering, redirection, and the like, wherein the complex flow classification unit is based on a Virtual Local Area Network (VLAN) ID, a QinQ technology (also called a Stacked VLAN or a Double VLAN), a VLAN ID inside and outside a packet, a VLAN 802.1p priority of a VLAN packet, an 802.1p priority of a VLAN inside a QinQ packet, and an outer VLAN ID, or based on a VLAN ID of a Tag inside and outside a QinQ packet, a dual Tag of a QinQ packet, a destination MAC address, a header source MAC address, a protocol type field in an ethernet, a Differential Service Code Point (DSCP) priority of an IP packet, an IP priority of an IP packet, a three-layer protocol type of a packet, an ingress interface, an egress interface, an Access Control List (ACL) rule, a matching order, and the like, and implements flow shaping, and the like, Flow strategies such as flow supervision, message filtering, redirection and the like. In practical application, the function of the complex flow classification unit is equivalent to a complete switch function, and the QoS attribute of the ethernet can be accepted or modified to meet the QoS requirements of users for different types of services. Optionally, the function of the complex flow module may be implemented in switch hardware, or CPU hardware, or FPGA hardware, according to the actual situation.
The soft switching unit is used for dividing the controlled and modified service data into data streams of different remote terminals according to the MAC address and sending the divided service data to the air interface stream management unit; specifically, the soft switch unit implements functions including an MAC switching function, that is, service data is exchanged and distributed to different remote terminals according to an MAC address; in practical applications, the softswitch Unit function may be implemented in switch hardware, or Central Processing Unit (CPU) hardware, or Field-Programmable Gate Array (FPGA) hardware according to actual situations.
The air interface flow management unit is used for dividing the service data sent by the soft switch unit into different air interface service flows according to different QoS requirements on an air interface and performing queue management on each air interface service flow. Specifically, the functions of the air interface flow management unit include classification and establishment of air interface service flows, and queue management of each air interface flow. In actual use, since air interface transmission is required, based on this, the air interface management module may divide the air interface into different air interface service streams according to QoS requirements of different services.
In the point-to-multipoint communication apparatus provided in this embodiment, a complex stream is classified according to user requirements to perform stream policy control and QoS attribute modification, a data packet from a switch chip is formed into data of different user terminals RT according to MAC addresses through a switch function, air interface service flows are classified and established through an air interface flow management function, and queues of congestion avoidance and congestion management of each air interface flow are managed, so that different air interface service flows are divided according to user requirements according to QoS attributes (such as priorities) of each remote terminal service, and then data transmission is performed according to different air interface service flows, thereby implementing QoS attribute guarantee and management of different services of different users accurately, and satisfying requirements of different users.
In addition, it should be noted that the complex stream classification unit, the soft switch unit, the air interface flow management module, the air interface scheduling module, the physical layer module, and the radio frequency processing module are all software program division modules, which are divided according to functions to solve the technical problem described above, but in practical application, these software modules need to be implemented by being supported on hardware, and therefore, based on the functional modules provided in the embodiments, the present application provides several hardware architecture designs. As shown in fig. 3, the apparatus includes 6 functional modules, a complex stream classification unit, a soft switch unit, an air interface stream management module, an air interface scheduling module, a physical layer module, and a radio frequency processing module, and in practical application, the 6 modules can provide various architecture designs according to different hardware types.
Optionally, a first architecture is provided: the complex flow classification unit is arranged in the exchange chip; the soft exchange unit, the air interface flow management and air interface scheduling module are arranged in a Central Processing Unit (CPU); the physical layer module is arranged in the FPGA.
The structure adopts a mode of a switch chip, a main CPU and a physical layer FPGA to set the functional modules. As shown in fig. 4, the switching chip integrates a complex flow classification unit, and its implementation functions include port marking, complex flow classification, flow shaping, flow supervision, packet filtering, redirection, and other flow policies, and bear the QoS attributes of the ethernet side, and perform flow policy control and QoS attribute modification according to the user requirements. The main CPU integrates a soft switch unit, an air interface flow management unit and an air interface scheduling module, wherein the soft switch unit is used for realizing functions and comprises the steps of forming data of different user terminals RT by data packets from a switch chip according to MAC addresses; the functions realized by the air interface flow management unit comprise classification and establishment of air interface service flows, and queue management of congestion avoidance, congestion management and the like of each air interface flow; the air interface scheduling module is used for dynamically scheduling and adapting data to a physical frame format according to the QoS requirement of each air interface service flow, the physical resource and channel condition of the air interface, and sending the data to the physical layer module by taking each air interface service flow as a unit. The FPGA is integrated with a physical layer module, the physical layer module is used for realizing related work of a physical layer, receiving scheduled data content through a Peripheral Component Interconnect Express (PCIE) interface of a high-speed serial computer, and forming data frames according to a physical frame format through coding modulation and sending the data frames to a radio frequency processing module.
In the framework, a hardware framework with 3-level data processing is used, various functions are decomposed into different modules, the pressure of a processor can be reduced, and the hardware specification (CPU main frequency, FPGA resources and the like) is low, which is equivalent to reducing the cost and power consumption of single hardware, improving the fault repair rate and enabling the repair cost of the hardware framework to be low.
Optionally, a second architecture is provided: in one embodiment, the complex stream classification unit is disposed in a switch chip; the soft switch unit, the air interface flow management unit, the air interface scheduling module and the physical layer module are arranged in the FPGA.
The functional modules are set in a mode of a switch chip and an FPGA. As shown in fig. 5, the switching chip integrates a complex flow classification unit, and its implementation functions include port marking, complex flow classification, flow shaping, flow supervision, packet filtering, redirection, and other flow policies, and accepts the QoS attribute of the ethernet side, and performs flow policy control and QoS attribute modification according to the user requirement. The FPGA integrates a soft switch unit, an air interface flow management unit, an air interface scheduling module and a physical layer module, wherein the functions of the soft switch unit for realizing comprise that a data packet from a switch chip forms data of different user terminals RT according to MAC addresses; the functions that the air interface flow management unit is used for realizing include classification and establishment of air interface service flows, and queue management of congestion avoidance, congestion management and the like of each air interface flow; the function that the air interface scheduling module is used for realizing comprises that each air interface service flow is taken as a unit, and according to the QoS requirement of each air interface service flow, the physical resource and channel condition of the air interface, data is dynamically scheduled and adapted to a physical frame format and is sent to a physical layer module; the physical layer module is used for realizing the related work of the physical layer, receiving the scheduled data content through the PCIE interface, and forming a data frame according to a physical frame format through coding modulation to be sent to the radio frequency processing module.
In the framework, partial functions are integrated (related functions of a CPU are put into an FPGA), so that the hardware cost and the power consumption are reduced, and the integration level of the whole framework is higher.
Optionally, a third architecture is provided: in an embodiment, the complex stream classification unit, the soft switch unit, the air interface stream management unit, the air interface scheduling module, and the physical layer module are all disposed in an FPGA.
In the framework, the function modules are set only in an FPGA mode. As shown in fig. 6, all functional modules are realized in an FPGA in a centralized manner, that is, all functional modules are integrated in one FPGA chip, and in this architecture, the flows can be classified directly according to the idle flows, that is, the complex flows are classified, soft switching and idle flow management are combined into the complex flows for processing. The architecture has the advantages of high integration level, less data link processing interaction, lowest processing time delay, optimal performance, low overall hardware cost and low power consumption.
Optionally, a fourth architecture is provided: in an embodiment, the soft switching unit and the air interface flow management unit are implemented by a plurality of logic queue interfaces, and the plurality of logic queue interfaces, the complex flow management module, the air interface scheduling module, and the physical layer are collectively arranged in an FPGA.
Under the structure, as shown in fig. 7, the function of the soft switch unit is replaced by using the complex stream classification, the function of the soft switch mainly distinguishes the data streams of different RTs, and the purpose of the soft switch is realized when the complex stream is classified by using the particularity of the complex stream classification and by setting the way that the data of different RTs are divided into different data streams. In addition, the air interface flow management unit mainly relates to the QoS processing, when the complex flow classification is carried out for the export operation, the same aim is achieved by using the strategy, namely, a plurality of logic queue interfaces are realized inside the FPGA, and the complex flow classification is integrally used for realizing the classification of a plurality of RT different QoS attribute data. The framework adopts a plurality of logic queue interfaces to replace a soft interaction module and an air interface flow management unit, so that the point-to-multipoint communication device reduces processing modules, reduces the pressure of a processor and improves the operation efficiency of the whole device.
The point-to-multipoint communication device provided by the application provides four different hardware architectures according to different functional modules, and the four architectures have different emphasis points on cost, power consumption, performance and hardware capability, so that the point-to-multipoint communication device can be more suitable for different development requirements and scene applications. The multi-level hardware architectures such as the switch, the CPU, the FPGA and the like in each architecture can realize more reasonable data caching capacity, and can relieve the data congestion and data packet loss conditions, so that the service data can be transmitted more stably and smoothly.
The point-to-multipoint communication device can be applied to a microwave point-to-multipoint communication system, and is suitable for both a near-end machine and a far-end machine in the point-to-multipoint communication system in practical use. Based on the point-to-multipoint communication device provided in the embodiment of the present application, optionally, as shown in fig. 8, an embodiment of the present application provides a point-to-multipoint communication system, where the system includes: a near-end machine and a far-end machine; the near-end machine comprises the point-to-multipoint communication device provided by the embodiment. Optionally, in an embodiment, the remote machine includes the point-to-multipoint communication apparatus provided in the above embodiments. The device can be applied to a near-end machine or a far-end machine for realizing point-to-multipoint communication and guaranteeing QoS (quality of service) attributes of users in a communication system. In addition, the present invention may be applied to the environment of a trunk ethernet, an access network, a metropolitan area network, and the like, which is not limited in this embodiment. Therefore, the point-to-multipoint communication device provided by the embodiment of the application can be installed in various scenes, the application convenience is greatly improved, and the diversified requirements of the application process are met.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A point-to-multipoint communication apparatus for use in a microwave communication system, the apparatus comprising: the system comprises a complex stream management module, an air interface scheduling module, a physical layer module and a radio frequency processing module;
the complex stream management module is used for managing the QoS attribute data of a plurality of remote machine services; the management comprises dividing different air interface service flows for the service data of the remote terminal according to different QoS requirements;
the air interface scheduling module is configured to determine a data volume of each air interface service flow according to the QoS requirement of each air interface service flow divided by the complex flow management module, and send service data corresponding to each data volume to the physical layer module;
the physical layer module is used for receiving the service data sent by the air interface scheduling module, modulating and coding the service data and then sending the service data to the radio frequency processing module;
the radio frequency processing module is used for receiving the modulated and coded service data sent by the physical layer module and converting the modulated and coded service data into a radio frequency signal to be sent;
the complex flow management module comprises a complex flow classification unit, a soft switching unit and an air interface flow management unit;
the complex flow classification unit is used for carrying out flow strategy control and QoS attribute modification on the service data according to user requirements and sending the controlled and modified service data to the soft switch unit; wherein the QoS attribute is the priority of the service data;
the soft switching unit is used for dividing the controlled and modified service data into data streams of different remote terminals according to the MAC address and sending the divided service data to the air interface stream management unit;
the air interface flow management unit is configured to divide the service data sent by the soft switch unit into different air interface service flows according to different QoS requirements on an air interface, and perform queue management on each air interface service flow.
2. The apparatus of claim 1, wherein the complex flow classification unit is further configured to perform at least one of port marking, traffic shaping, traffic policing, packet filtering, redirection, and adapting Ethernet-side QoS attributes.
3. The apparatus according to claim 2, wherein the air interface scheduling module is configured to determine a size of the service data to be sent of each air interface service flow through a preset dynamic scheduling algorithm according to a QoS requirement, air interface physical resources, and a channel condition of each air interface service flow, and send the service data to the physical layer through a channel physical frame resource according to a preset physical frame format.
4. The apparatus of claim 3, wherein the complex flow classification unit is disposed in a switch chip; the soft switching unit, the air interface flow management unit and the air interface scheduling module are arranged in a Central Processing Unit (CPU); the physical layer module is arranged in a Field Programmable Gate Array (FPGA).
5. The apparatus of claim 3, wherein the complex flow classification unit is disposed in a switch chip; the soft switching unit, the air interface flow management unit, the air interface scheduling module and the physical layer are arranged in an FPGA.
6. The apparatus according to claim 3, wherein the complex stream classification unit, the soft switch unit, the air interface stream management unit, the air interface scheduling module, and the physical layer are all disposed in an FPGA.
7. The apparatus according to claim 3, wherein the soft switch unit and the air interface flow management unit are implemented by a plurality of logical queue interfaces, and the plurality of logical queue interfaces, the air interface scheduling module, and the physical layer module are collectively disposed in an FPGA.
8. The apparatus of claim 1, wherein the rf processing module is further configured to receive an rf signal, convert the rf signal for processing, and transmit the rf signal to the physical layer module for analysis.
9. A point-to-multipoint communication system for use in a microwave communication system, said system comprising: a near-end machine and a far-end machine; a point-to-multipoint communication device according to any of claims 1 to 8 incorporated in said near-end unit.
10. A point-to-multipoint communication system for use in a microwave communication system, said system comprising: a near-end machine and a far-end machine; a point-to-multipoint communication device according to any of claims 1-8 incorporated in said remote terminal.
Priority Applications (2)
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