CN106937314B

CN106937314B - IR interface remote monitoring system and method for radio remote base stations

Info

Publication number: CN106937314B
Application number: CN201511018939.1A
Authority: CN
Inventors: 王彬
Original assignee: Putian Information Technology Co Ltd
Current assignee: Putian Information Technology Co Ltd
Priority date: 2015-12-29
Filing date: 2015-12-29
Publication date: 2020-01-31
Anticipated expiration: 2035-12-29
Also published as: CN106937314A

Abstract

The invention relates to an remote monitoring system and a method for an IR interface of a radio remote station, wherein the system comprises an intelligent terminal integrated with a debugging control unit, and is used for sending a debugging instruction to a BBU device to control debugging and receive returned debugging and testing data and analyze the data, an Ethernet processing module, a debugging and triggering control module and a data cache scheduling module are arranged in a FPGA chip in the BBU device, a second debugging and triggering control module and a time domain and frequency domain switching scheduling module are arranged in a second FPGA chip in an RRU device, and are used for scheduling service data and the debugging and testing data by adopting a time-division multiplexing scheduling mode according to the debugging instruction and sending the read debugging and testing data to the intelligent terminal.

Description

IR interface remote monitoring system and method for radio remote base stations

Technical Field

The invention relates to the technical field of communication, in particular to an IR interface remote monitoring system and method of radio remote base stations.

Background

In a mobile communication system, the system has higher and higher requirements for the processing capability of the device due to the influence of objective factors such as cost, power consumption and networking flexibility. The device is often required to complete data processing of multiple cells and multiple antennas, and also high requirements are provided for resource utilization rate, integration level and the like of the device, especially for current TD and LTE base station systems. In the deployment of a Base station, a Radio Remote Unit (RRU) and a baseband processing Unit (BBU) of the Base station are often separated by using a Radio Remote technology, and the BBU device and the RRU device are connected by an optical fiber, which increases the debugging difficulty.

Currently, in a mobile communication system, there are two methods for debugging BBU devices and RRU devices:

and , adding extra hardware resources on the BBU equipment and the RRU equipment, such as adding test boards in the BBU equipment and the RRU equipment, and testing the BBU equipment and the RRU equipment.

The second debugging method comprises the following steps: the test board card and the test instrument are externally connected, the existing interfaces of the BBU equipment and the RRU equipment are applied, the connection is re-carried out to collect the debugging and testing data, and then the debugging and testing of the BBU equipment and the RRU equipment are realized.

The current debugging method has the following problems.

Although the test board is integrated inside the BBU device and the RRU device, and the testing and the debugging are realized without rewiring, because the BBU device and the RRU device are limited by cost, power consumption, and the like, software and hardware resources of the BBU device and the RRU device basically have no extra resources for testing and debugging, and the addition of extra testing and debugging hardware and interfaces often has a great influence on the cost.

The second debugging method comprises the following steps: although the debugging function is realized through the test board card and the test instrument which are arranged outside the BBU equipment and the RRU equipment, the resources of the BBU equipment and the RRU equipment are not increased, when the debugging is carried out, the existing interfaces of the BBU equipment and the RRU equipment need to be applied for re-wiring, the current service is inevitably interrupted, and the on-line debugging and testing requirements of a commercial network are not met; in addition, the external special test board card and the test instrument need the field support of professional personnel, and the debugging cost is increased.

Disclosure of Invention

The invention provides IR interface remote monitoring systems and methods for RRU, which aims to solve the problems that in the prior art, extra hardware resources are required to be added on BBU equipment and RRU equipment, so that the cost and power consumption of the BBU equipment and the RRU equipment are increased, and the problems that in the prior art, a test board card and a test instrument are required to be externally connected, and the existing interfaces of the BBU equipment and the RRU equipment are required to be re-connected during debugging and testing, so that the normal operation of the current service is influenced.

For this purpose, the invention proposes the following technical solutions.

, the invention provides a IR interface remote monitoring system for a radio remote base station, which is suitable for monitoring IR interfaces connecting BBU equipment and RRU equipment, wherein the BBU equipment is internally provided with a FPGA chip and a DDR chip, the RRU equipment is internally provided with a second FPGA chip, and the monitoring system comprises:

the intelligent terminal is integrated with a debugging control unit, is connected with the BBU equipment, and is used for sending a debugging instruction to the BBU equipment, controlling the debugging of the IR interface, receiving debugging data returned by the BBU equipment, and analyzing to obtain a debugging result;

setting in the th FPGA chip:

the Ethernet processing module is used for receiving a debugging instruction sent by the intelligent terminal, forwarding the debugging instruction to the th debugging trigger control module and sending debugging data to the intelligent terminal;

, a test trigger control module for sending an acquisition instruction to the data cache scheduling module according to the test instruction, and controlling the data cache scheduling module to acquire the test data;

the data cache scheduling module is used for acquiring debugging data, caching the debugging data into the DDR chip, performing ping-pong scheduling on service data and the debugging data by adopting a time-sharing multiplexing scheduling mode, and sending the read debugging data to the Ethernet processing module;

setting in the second FPGA chip:

the second modulation and test trigger control module is used for sending an acquisition instruction to the time domain and frequency domain switching and scheduling module according to the modulation and test instruction and controlling the time domain and frequency domain switching and scheduling module to acquire modulation and test data;

and the time domain and frequency domain switching scheduling module is used for scheduling and switching the service data and the testing data by adopting a time-sharing multiplexing scheduling mode, and sending the testing data to the data caching scheduling module through an IR interface.

Preferably, a type field is added in a data frame transmitted by the IR interface, and the type field is used for distinguishing debug data and traffic data.

Preferably, the intelligent terminal is further configured to send location information corresponding to the intelligent terminal to the BBU device;

the ethernet processing module is further configured to receive the location information and forward the location information to the th commissioning trigger control module.

Optionally, the intelligent terminal is a PC, and the location information includes a MAC address, an IP address, and a port number of the PC.

Optionally, the tuning instruction includes a tuning data type, a tuning data amount, and a time position of transmitting and receiving the tuning data.

In addition, , the present invention further provides a remote monitoring method for IR interface of remote radio base station, including:

s1, the BBU equipment receives a debugging instruction sent by the intelligent terminal integrated with the debugging control unit through the Ethernet processing module;

s2, the Ethernet processing module forwards the debugging command to a debugging trigger module;

s3, the debugging trigger module sends an acquisition instruction to the data cache scheduling module according to the debugging instruction, and controls the data cache scheduling module to acquire debugging data;

s4, the data buffer scheduling module collects the testing data, buffers the testing data into the DDR chip, performs ping-pong scheduling of the service data and the testing data by adopting a time-sharing multiplexing scheduling mode, and sends the read testing data to the Ethernet processing module;

and S5, the Ethernet processing module forwards the testing data to the intelligent terminal, and the testing data is analyzed by the intelligent terminal to obtain a testing result.

Preferably, the debugging and testing data collected in step S4 includes downlink frequency domain data from the BBU device to the RRU device, uplink frequency domain data from the RRU device to the BBU device, uplink time domain data inside the RRU device, and downlink time domain data inside the RRU device.

Specifically, the acquiring uplink time domain data inside the RRU device and downlink time domain data inside the RRU device includes:

the second debugging and testing triggering module sends an acquisition instruction to the time domain and frequency domain switching and scheduling module according to the debugging and testing instruction, and controls the time domain and frequency domain switching and scheduling module to acquire debugging and testing data;

and the time domain and frequency domain switching and scheduling module carries out scheduling switching of service data and scheduling and measuring data by adopting a time-sharing multiplexing scheduling mode, and sends the scheduling and measuring data to the data cache and scheduling module through an IR interface.

Preferably, the IR interface adds a type field in the data frame when transmitting data, and the type field is used for distinguishing the debug data from the traffic data.

Preferably, the step S1 further includes: sending the position information corresponding to the intelligent terminal to the BBU equipment;

the step S2 further includes the Ethernet processing module forwarding the location information to a th debugging trigger module;

the step S5 includes: and the Ethernet processing module combines the debugging data with the position information, packages the debugging data, forwards the packaged debugging data to the intelligent terminal, and analyzes the debugging data through the intelligent terminal to obtain a debugging result.

The invention has the beneficial effects that:

the invention provides a remote monitoring system and a remote monitoring method for an IR interface of a radio remote base station, which are characterized in that an Ethernet processing module, a debugging trigger control module and a data cache scheduling module are arranged in an FPGA chip in BBU equipment, a second debugging trigger control module and a time domain and frequency domain switching scheduling module are arranged in a second FPGA chip of RRU equipment, the existing hardware resources of the BBU equipment and the RRU equipment are fully utilized, namely the FPGA chips, the interfaces and the DDR chip cache resources of the BBU equipment and the RRU equipment are multiplexed, and debugging data are acquired and transmitted to an intelligent terminal for analysis by a time-sharing multiplexing scheduling mode and data cache ping-pong processing;

due to the adoption of a time-sharing multiplexing scheduling mode, the current service does not need to be interrupted during the scheduling, and the normal operation of the current service in the scheduling and testing process is ensured;

the debugging data collected by the BBU equipment and the RRU equipment is remotely sent to the intelligent terminal through the Ethernet processing module, and the debugging data is analyzed through the intelligent terminal, so that remote debugging is realized.

Drawings

The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the invention in any way, and in which:

FIG. 1 is a schematic diagram of an IR interface remote monitoring system of a remote radio base station according to the present invention;

FIG. 2 shows a BBU device IR interface data monitoring schematic;

fig. 3 shows a schematic diagram of IR interface data monitoring of RRU devices;

fig. 4 shows a data frame format of an IR interface transmission;

fig. 5 is a flow chart illustrating a method for remotely monitoring an IR interface of a remote radio base station according to the present invention.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Fig. 1 is a diagram of an IR interface remote monitoring system of a radio remote base station according to an embodiment of the present invention, where the monitoring system is adapted to monitor an IR interface connecting a BBU device and an RRU device in the prior art, an th FPGA chip and a DDR chip are provided in the BBU device, the DDR chip is connected to a th FPGA chip, and a second FPGA chip is provided in the RRU device.

As shown, the monitoring system includes:

the intelligent terminal is integrated with a debugging control unit, is connected with the BBU equipment, and is used for sending a debugging command to the BBU equipment, controlling the debugging of the IR interface, receiving debugging data returned by the BBU equipment, and analyzing to obtain a debugging result;

setting in FPGA chip:

, a testing trigger control module for sending an acquisition instruction to the data cache scheduling module according to the testing instruction, and controlling the data cache scheduling module to acquire the testing data;

the data cache scheduling module is used for acquiring the debugging data, caching the debugging data into the DDR chip, performing ping-pong scheduling on the service data and the debugging data by adopting a time-sharing multiplexing scheduling mode, and sending the read debugging data to the Ethernet processing module;

and setting in a second FPGA chip:

and the time domain and frequency domain switching scheduling module is used for scheduling and switching the service data and the testing data by adopting a time-sharing multiplexing scheduling mode, and sending the testing data to the data caching scheduling module through the IR interface.

The embodiment of the invention realizes the acquisition of the debugging data and transmits the debugging data to an intelligent terminal for analysis by setting an Ethernet processing module, a debugging trigger control module and a data cache scheduling module in an FPGA chip in BBU equipment and setting a second debugging trigger control module and a time-domain frequency-domain switching scheduling module in a second FPGA chip of RRU equipment, fully utilizing the existing hardware resources of the BBU equipment and the RRU equipment, namely multiplexing the FPGA chips, interfaces and DDR chip cache resources of the BBU equipment and the RRU equipment, and performing time-division multiplexing scheduling and data cache ping-pong processing.

When the intelligent terminal monitors abnormal service, the intelligent terminal sends a debugging instruction to the BBU equipment and informs an FPGA chip of the BBU equipment to acquire time domain and frequency domain debugging data of the BBU equipment and/or the RRU equipment, wherein the debugging instruction can be defined according to actual requirements as implementation modes.

It should be understood that the above-mentioned intelligent terminal may be an intelligent terminal device such as a smart phone and a PC, and as implementation modes, a PC is specifically described as an intelligent terminal for controlling, regulating, measuring, receiving, analyzing and obtaining a regulating result in the embodiment of the present invention.

In order to ensure that the BBU equipment can accurately send the acquired debugging data to a target PC, the BBU equipment often stores the position information of the PC, wherein the position information comprises but is not limited to the MAC address, the IP address and the port number of the PC, the position information can be stored in the BBU equipment in advance, but in order to enable any PC integrated with a debugging control unit to realize a remote debugging function, preferably, the PC sends a debugging instruction to the BBU equipment and sends the position information corresponding to the PC to the BBU equipment, at the moment, the Ethernet processing module receives the position information and forwards the position information to the debugging trigger control module, and when the Ethernet processing module receives the debugging data and needs to send the debugging data to the PC, the position information of the PC is obtained from the debugging trigger control module and then sent to realize dynamic configuration.

In addition, the Ethernet processing module also receives debugging data sent by the data cache scheduling module, combines the position information of the PC acquired from the debugging and triggering control module, packs the debugging data, adds a UDP data packet head and a CRC bit, and then sends the debugging data to the PC through an Ethernet bridge and a debugging interface.

It is understood that, because the data volume of the debugging data can be set according to the requirement, when the debugging data volume is large, the Ethernet processing module can also split the debugging data, and then respectively packages and sends the debugging data to the PC.

In the embodiment of the invention, a data cache scheduling module is arranged in an FPGA (field programmable gate array) and controls the DDR chip to carry out ping-pong scheduling of service data and scheduling data in a time-division multiplexing scheduling mode without causing interruption of the current service, when a scheduling instruction is received and the scheduling data needs to be collected, the data cache scheduling module controls the cell 1 cache pool and the standby cache pool in the DDR chip to be matched for use, so that data operation is realized, namely, the inputted ping-pong cell 1 service data is cached to the cell 1 cache pool at the th field time, the inputted scheduling data is cached to the standby cache pool at the second field time through cache scheduling switching, meanwhile, the data ( th field time data) in the cell 1 cache pool is sent out for processing repeatedly, scheduling is realized, switching of the service data and the scheduling data is realized, the inputted scheduling data is cached to the standby cache pool, the additional scheduling data of the service data is realized, and the additional frequency domain data acquisition of the current RRU is ensured, and the additional frequency domain data acquisition is not only required by the DDR chip, and the additional frequency domain data acquisition of the current RRU is ensured.

When the debugging instruction is received, the second debugging trigger control module sends an acquisition instruction to the time domain and frequency domain switching scheduling module, and the time domain and frequency domain switching scheduling module adopts a time division multiplexing scheduling mode to perform scheduling switching of service data and debugging data and send the debugging data to the data scheduling caching module through the IR interface.

In order to support multiple data type packet transmission between the RRU device and the BBU device, such as transmission of service data and scheduling data, preferably, a data frame transmitted by the IR interface is modified, and a type field is added to the data frame transmitted by the IR interface, where the type field is used to distinguish the scheduling data from the service data. As shown in fig. 4, the basic format of the data frame transmitted by the IR interface is: protocol control words, header information, IQ Data 0, … …, IQ Data n, the embodiment of the invention adds type field in the header information of the basic format Data frame to distinguish debug Data and service Data. The design enables the IR interface to be multiplexed without adding the IR interface due to the existence of multiple data types between the RRU equipment and the BBU equipment.

It should be added that, because the data transmission rate between the BBU device and the RRU device is very high, and the transmission rate of the ethernet processing module is relatively limited, in order to ensure that the data transmission of the ethernet processing module is normal, the read rate is reduced to a rate 100 times or less than the original data rate, and the existing debugging network port of the BBU device is multiplexed for remote debugging.

It should be noted that , the intelligent terminal analyzing the data packet of the debug data returned from the BBU device refers to running an analysis tool to analyze, store, and display the analysis result of the collected debug data in real time, and the analysis process includes extracting payload data in the data packet.

Fig. 5 is a method for remotely monitoring an IR interface of a remote radio base station according to an embodiment of the present invention, as shown in fig. 5, the method includes:

s2, the Ethernet processing module transmits the debugging command to the debugging trigger module;

s4, the data cache scheduling module collects the testing data, caches the testing data into the DDR chip, performs ping-pong scheduling of the service data and the testing data by adopting a time-sharing multiplexing scheduling mode, and sends the read testing data to the Ethernet processing module;

According to the embodiment of the invention, hardware resources such as the th FPGA chip in the BBU equipment, the DDR chip and the second FPGA chip in the RRU equipment are multiplexed, a time-sharing multiplexing scheduling mode and data caching ping-pong processing are adopted, the acquisition of the debugging and testing data is realized, the debugging and testing data is transmitted to the intelligent terminal for analysis, the debugging and testing hardware resources are not required to be additionally arranged on the BBU equipment and the RRU equipment, the debugging and testing cost and the power consumption in the debugging and testing process are effectively reduced, the current service is not required to be interrupted when the debugging is carried out, and the normal operation of the current service in the debugging and testing process is ensured.

and the time domain and frequency domain switching and scheduling module carries out scheduling switching of the service data and the scheduling and testing data by adopting a time-sharing multiplexing scheduling mode, and sends the scheduling and testing data to the data caching and scheduling module through an IR interface.

Preferably, step S1 further includes: sending position information corresponding to the intelligent terminal to the BBU equipment;

step S2 further includes the Ethernet processing module forwarding the location information to the debugging trigger module;

step S5 includes: the Ethernet processing module combines the debugging data with the position information, packages the debugging data, forwards the packaged debugging data to the intelligent terminal, and analyzes the debugging data through the intelligent terminal to obtain a debugging result.

Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1, kinds of remote radio base station's IR interface remote monitoring system is applicable to and monitors the IR interface of connecting BBU equipment and RRU equipment, BBU equipment is inside to be equipped with FPGA chip and DDR chip, RRU equipment is inside to be equipped with the second FPGA chip, its characterized in that, monitoring system includes:

setting in the th FPGA chip:

setting in the second FPGA chip:

2. The monitoring system of claim 1, wherein a type field is added to a data frame transmitted by the IR interface, and the type field is used for distinguishing debug data from traffic data.

3. The monitoring system according to claim 1, wherein the intelligent terminal is further configured to send location information corresponding to the intelligent terminal to the BBU device;

4. The monitoring system of claim 3, wherein the intelligent terminal is a PC, and the location information comprises a MAC address, an IP address and a port number of the PC.

5. The monitoring system of , wherein the test instructions include test data type, test data amount, and time of day location of sending and receiving test data.

6, IR interface remote monitoring method of radio remote base station, suitable for monitor the IR interface connecting BBU equipment and RRU equipment, BBU equipment inside is equipped with FPGA chip and DDR chip, RRU equipment inside is equipped with the second FPGA chip, be provided with ethernet processing module, debug trigger module and data buffer dispatch module in the FPGA chip, be provided with the second in the second FPGA chip and debug trigger module and time domain frequency domain switch dispatch module, its characterized in that includes:

s5, the Ethernet processing module forwards the testing data to the intelligent terminal, and the testing data is analyzed by the intelligent terminal to obtain a testing result;

the debugging and testing data collected in the step S4 includes downlink frequency domain data from the BBU device to the RRU device, uplink frequency domain data from the RRU device to the BBU device, uplink time domain data inside the RRU device, and downlink time domain data inside the RRU device;

the acquiring uplink time domain data inside the RRU device and downlink time domain data inside the RRU device includes:

7. The monitoring method according to claim 6, wherein the IR interface adds a type field in a data frame when transmitting data, and the type field is used for distinguishing the debugging data from the traffic data.

8. The monitoring method according to of claim 6 or 7, wherein the step S1 further includes sending location information corresponding to the smart terminal to the BBU device;