CN103023696B - Fault handling method, RRU and fault processing system - Google Patents
Fault handling method, RRU and fault processing system Download PDFInfo
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Abstract
The invention provides a kind of fault handling method, RRU and fault processing system, wherein, fault handling method includes: when radio frequency remote unit RRU breaks down, described RRU uses its IR light mouth to connect troubleshooting control end by optical modem, receive described troubleshooting by described IR light mouth and control the troubleshooting order that end sends, wherein, described IR light mouth processes chip with the base station signal in described RRU respectively and Ethernet switching chip is connected；Described RRU sends described troubleshooting order to described Ethernet switching chip, makes described Ethernet switching chip carry out the troubleshooting of described RRU according to described troubleshooting order.By the present invention, save the manpower of RRU troubleshooting, time, decrease the danger of operation；Improve RRU port integrated level, that has saved RRU realizes cost.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method for processing a fault when a Radio Remote Unit (RRU) fails, an RRU, and a fault processing system.
Background
The 3G network largely uses a distributed base station architecture, and a base station under the architecture is divided into an RRU and a BBU (baseband processing unit). Currently, BBU and RRU installed in a network are separated, BBU is installed in a machine room, RRU is installed in a high tower or a floor, and RRU and BBU are directly connected by optical fiber, as shown in fig. 1. In fig. 1, the RRU is installed on a tower, the BBU is installed in a machine room of a base station, such as an EMB5216 base station, and in addition, an OM (operation and maintenance) management station manages the BBU and the RRU through a Switch.
The RRU has two types of interfaces, one is an Ethernet test interface, the other is an IR optical interface connected with a base station, the two types of ports are separated independently, and the ports do not communicate with each other. Under normal conditions, the RRU is connected with the base station through an optical module and an optical fiber, a signal transmitted to the RRU by the base station is processed through a SERDES (SERializer-DESerializer) chip, when the RRU cannot be accessed and the RRU has a problem, an ethernet debugging interface of the RRU needs to be connected to a PC through a network cable, and the RRU is connected to the PC through special software to check the state or repair the RRU.
However, the RRU is installed at a high place and is not easily touched by people, and when the RRU is connected to the ethernet debugging interface, the RRU needs to climb to a high building or a high tower to connect a network cable to the ethernet debugging interface, which causes the operational danger of the ethernet debugging interface connected to the RRU, consumes labor and time, and causes low RRU inspection and repair efficiency.
Disclosure of Invention
The invention provides a fault processing method, an RRU (remote radio unit) and a fault processing system, and aims to solve the problems that an Ethernet debugging interface connected with the RRU is dangerous to operate, consumes manpower and time and has low RRU checking and repairing efficiency when the RRU fails in the prior art.
In order to solve the above problem, the present invention discloses a fault handling method, which comprises: when a radio remote unit RRU fails, the RRU uses an IR optical port of the RRU to connect a fault processing control end through an optical modem, and receives a fault processing command sent by the fault processing control end through the IR optical port, wherein the IR optical port is respectively connected with a base station signal processing chip and an Ethernet switching chip in the RRU; and the RRU sends the fault processing command to the Ethernet switching chip, so that the Ethernet switching chip carries out fault processing on the RRU according to the fault processing command.
Preferably, the step of sending the fault handling command to the ethernet switching chip by the RRU includes: when only one of the connection between the IR optical port and the base station signal processing chip and the connection between the IR optical port and the Ethernet switching chip is opened, the RRU judges whether the currently opened connection is the connection between the IR optical port and the Ethernet switching chip; if so, the RRU sends the fault processing command to the Ethernet switching chip; if not, the RRU switches the currently opened connection into the connection between the IR optical port and the Ethernet switching chip, and sends the fault processing command to the Ethernet switching chip.
Preferably, the step of switching, by the RRU, the currently opened connection to the connection between the IR optical port and the ethernet switching chip includes: the RRU determines that the RRU resetting frequency reaches a first threshold value; and switching the currently opened connection between the IR optical port and the base station signal processing chip into the connection between the IR optical port and the Ethernet switching chip, and enabling the connection holding time of the IR optical port and the Ethernet switching chip to meet a second threshold value.
Preferably, the fault handling method further includes: and the RRU receives an opening maintaining command sent by the fault processing control end within the maintaining time of the second threshold value, so that the connection between the IR optical port and the Ethernet switching chip is always in an opening state before the fault processing is finished.
Preferably, the step of sending the fault processing command to the ethernet switching chip by the RRU, so that the ethernet switching chip performs fault processing on the RRU according to the fault processing command includes: when the connection between the IR optical port and the base station signal processing chip and the connection between the IR optical port and the Ethernet switching chip are both opened, the RRU respectively sends the fault processing command to the base station signal processing chip and the Ethernet switching chip; when the base station signal processing chip receives the fault processing command, determining that the data format of the fault processing command is an Ethernet data format, and not processing; and when the Ethernet switching chip receives the fault processing command, determining that the data format of the fault processing command is the Ethernet data format, and performing fault processing on the RRU according to the fault processing command.
In order to solve the above problem, the present invention also discloses a remote radio unit RRU, which includes: a connection receiving module, configured to, when the RRU fails, connect a fault processing control terminal through an optical modem using an IR optical port of the RRU, and receive a fault processing command sent by the fault processing control terminal through the IR optical port, where the IR optical port is connected to a base station signal processing chip and an ethernet switching chip in the RRU, respectively; and the fault processing module is used for sending the fault processing command to the Ethernet switching chip so that the Ethernet switching chip carries out fault processing on the RRU according to the fault processing command.
Preferably, the fault processing module is configured to determine whether a currently opened connection is a connection between the IR optical port and the ethernet switching chip when only one of the connection between the IR optical port and the base station signal processing chip and the connection between the IR optical port and the ethernet switching chip is opened; if yes, sending the fault processing command to the Ethernet switching chip; if not, the currently opened connection is switched to the connection between the IR optical port and the Ethernet switching chip, and the fault processing command is sent to the Ethernet switching chip.
Preferably, when the currently opened connection is switched to the connection between the IR optical port and the ethernet switching chip, the fault processing module determines that the number of times of resetting the RRU reaches a first threshold; and switching the currently opened connection between the IR optical port and the base station signal processing chip into the connection between the IR optical port and the Ethernet switching chip, and enabling the connection holding time of the IR optical port and the Ethernet switching chip to meet a second threshold value.
Preferably, the fault processing module is further configured to receive an open hold command sent by the fault processing control terminal within the hold time of the second threshold, so that the connection between the IR optical port and the ethernet switching chip is always in an open state before the fault processing is completed.
Preferably, the fault processing module is configured to send the fault processing command to the base station signal processing chip and the ethernet switching chip respectively when both the connection between the IR optical port and the base station signal processing chip and the connection between the IR optical port and the ethernet switching chip are open; when the base station signal processing chip receives the fault processing command, determining that the data format of the fault processing command is an Ethernet data format, and not processing; and when the Ethernet switching chip receives the fault processing command, determining that the data format of the fault processing command is the Ethernet data format, and performing fault processing on the RRU according to the fault processing command.
In order to solve the above problem, the present invention also discloses a fault handling system, including: the system comprises a fault processing control end, an optical modem and a Radio Remote Unit (RRU); the fault processing control end is connected with an IR optical port of the RRU through the optical modem, and the IR optical port is respectively connected with a base station signal processing chip and an Ethernet switching chip in the RRU; the fault processing control end is used for sending a fault processing command to the RRU when the RRU has a fault, and receiving a fault processing result returned by the RRU; the optical modem is configured to modulate an electrical signal of the fault processing command sent by the fault processing control terminal into an optical signal and send the optical signal to the RRU, and modulate an optical signal of the fault processing result sent by the RRU into an electrical signal and send the electrical signal to the fault processing control terminal; and the RRU is used for receiving the fault processing command through the IR optical port and sending the fault processing command to the Ethernet switching chip, so that the Ethernet switching chip carries out fault processing on the RRU according to the fault processing command.
Preferably, the RRU is configured to receive the fault handling command through the IR optical port, and determine whether a currently-opened connection is a connection between the IR optical port and the ethernet switching chip when only one of a connection between the IR optical port and the base station signal processing chip and a connection between the IR optical port and the ethernet switching chip is opened; if so, sending the fault processing command to the Ethernet switching chip, so that the Ethernet switching chip performs fault processing on the RRU according to the fault processing command; if not, switching the currently opened connection to the connection between the IR optical port and the Ethernet switching chip, and sending the fault processing command to the Ethernet switching chip, so that the Ethernet switching chip performs fault processing on the RRU according to the fault processing command; or, the RRU is configured to receive the fault processing command through the IR optical port, and when both the connection between the IR optical port and the base station signal processing chip and the connection between the IR optical port and the ethernet switching chip are opened, send the fault processing command to the base station signal processing chip and the ethernet switching chip, respectively; when the base station signal processing chip receives the fault processing command, determining that the data format of the fault processing command is an Ethernet data format, and not processing; and when the Ethernet switching chip receives the fault processing command, determining that the data format of the fault processing command is the Ethernet data format, and performing fault processing on the RRU according to the fault processing command.
Compared with the prior art, the invention has the following advantages:
the fault processing control end and the IR optical port of the RRU are connected through the optical modem, and the IR optical port is respectively connected with the base station signal processing chip and the Ethernet switching chip of the RRU, wherein the fault processing control end can be connected with the optical modem through a common network cable, and the IR optical port of the RRU can be connected with the optical modem through an optical fiber originally connected with the base station. When the RRU has problems, the RRU can not be accessed to a base station, the RRU is not required to be positioned and repaired by climbing a tower or connecting an Ethernet debugging interface of the RRU with a high building, the RRU can be directly operated by connecting an optical fiber of the RRU with a machine room through an optical modem, and a fault processing control end of the machine room sends a fault processing command to the RRU through the optical modem so as to carry out fault processing on the RRU, so that the labor and the time are saved, and the operation risk is reduced; and the IR optical port of the RRU is respectively connected with the base station signal processing chip and the Ethernet switching chip, and the Ethernet debugging interface and the IR optical port of the RRU are integrated together without an additional Ethernet debugging interface, so that the integration level of the RRU port is improved, and the realization cost of the RRU is saved.
Drawings
Fig. 1 is a schematic diagram of a network connection during normal operation of an RRU in the prior art;
fig. 2 is a schematic diagram of a network connection when an RRU needs to be repaired after a failure of the RRU according to an embodiment of the present invention;
FIG. 3 is a flow chart of steps of a fault handling method according to a first embodiment of the invention;
FIG. 4 is a flow chart of the steps of a fault handling method according to the second embodiment of the present invention;
FIG. 5 is a flow chart of the steps of a fault handling method according to the third embodiment of the present invention;
FIG. 6 is a flow chart of the steps of a method of fault handling according to the fourth embodiment of the present invention;
fig. 7 is a block diagram of a RRU according to a fifth embodiment of the present invention;
fig. 8 is a block diagram of a fault handling system according to a sixth embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
In the present invention, as shown in fig. 2, when an RRU fails, the optical fiber connection between the RRU and the BBU of the base station is disconnected, the optical fiber is connected to the optical modem, and then a failure processing control terminal, such as an OM management station, is connected to the optical modem, thereby realizing that the failure processing control terminal is connected to the RRU through the optical modem. The connection between the optical modem and the fault processing control end can adopt a common network cable such as a twisted pair, and the connection between the optical modem and the RRU adopts an optical fiber between the original RRU and a base station. The fault processing control end is connected with an IR optical port of the RRU through an optical modem, and the IR optical port is connected with a base station signal processing chip in the RRU, such as a SERDES chip, and also connected with an Ethernet switching chip in the RRU.
Example one
Referring to fig. 3, a flowchart illustrating steps of a fault handling method according to a first embodiment of the present invention is shown.
The fault processing method of the embodiment comprises the following steps:
step S102: when the RRU fails, the RRU uses the IR optical port of the RRU to be connected with the fault processing control terminal through the optical modem, and receives a fault processing command sent by the fault processing control terminal through the IR optical port.
Wherein, the IR optical port is respectively connected with a base station signal processing chip and an Ethernet switching chip in the RRU.
When the RRU has a fault due to a problem, a person skilled in the art can connect the fault processing control terminal and the RRU in the above manner, and the fault processing control terminal sends a fault processing command, such as a command for querying the state of the RRU and a command for repairing the RRU, and the RRU receives the fault processing command from the fault processing control terminal through the IR optical port to perform subsequent fault processing.
Step S104: and the RRU sends a fault processing command to the Ethernet switching chip, so that the Ethernet switching chip carries out fault processing on the RRU according to the fault processing command.
After receiving the fault processing command through the IR optical port, the RRU may be handed to the ethernet switching chip for corresponding processing in various feasible ways.
According to the embodiment, the optical modem is connected with the fault processing control end and the IR optical port of the RRU, and the IR optical port is respectively connected with the base station signal processing chip and the Ethernet switching chip of the RRU, wherein the fault processing control end can be connected with the optical modem through a common network cable, and the IR optical port of the RRU can be connected with the optical modem through an optical fiber originally connected with the base station. When the RRU has problems, the RRU can not be accessed to a base station, the RRU is not required to be positioned and repaired by climbing a tower or connecting an Ethernet debugging interface of the RRU with a high building, the RRU can be directly operated by connecting an optical fiber of the RRU with a machine room through an optical modem, and a fault processing control end of the machine room sends a fault processing command to the RRU through the optical modem so as to carry out fault processing on the RRU, so that the labor and the time are saved, and the operation risk is reduced; and the IR optical port of the RRU is respectively connected with the base station signal processing chip and the Ethernet switching chip, and the Ethernet debugging interface and the IR optical port of the RRU are integrated together without an additional Ethernet debugging interface, so that the integration level of the RRU port is improved, and the realization cost of the RRU is saved.
Example two
Referring to fig. 4, a flowchart illustrating steps of a fault handling method according to a second embodiment of the present invention is shown.
The fault processing method of the embodiment comprises the following steps:
step S202: when the RRU fails, the fault processing control end is connected with the IR optical port of the RRU through the optical modem.
As mentioned above, the optical modem and the fault handling control terminal are connected by using a common network cable, and the optical modem and the IR optical port of the RRU are connected by using an optical fiber between the original RRU and the base station. The IR optical port of the RRU is connected with both a base station signal processing chip in the RRU and an Ethernet switching chip in the RRU.
Step S204: and the fault processing control end sends a fault processing command to the RRU.
For example, an RRU status query command, an RRU repair command, or other fault handling commands.
Step S206: and the RRU receives the fault processing command through the IR optical port and delivers the fault processing command to an Ethernet switching chip of the RRU.
The RRU is provided with an Ethernet switching chip and a base station signal processing chip. The base station signal processing chip is used for processing base station transmission signals when the RRU is normal, and the Ethernet switching chip is used for processing fault processing commands in an Ethernet data format of the fault processing control end when the RRU fails.
When the RRU fails, only one of the two connection paths between the IR optical port and the base station signal processing chip and between the IR optical port and the ethernet switching chip may be opened, or both of the two connection paths may be opened.
When only one of the connection between the IR optical port and the base station signal processing chip and the connection between the IR optical port and the Ethernet switching chip is opened, the RRU judges whether the currently opened connection is the connection between the IR optical port and the Ethernet switching chip; if so, the RRU directly sends the fault processing command to the Ethernet switching chip; if not, the RRU switches the currently opened connection from the IR optical port to the base station signal processing chip to the connection between the IR optical port and the Ethernet switching chip, and sends a fault processing command to the Ethernet switching chip.
When the connection between the IR optical port and the base station signal processing chip and the connection between the IR optical port and the Ethernet switching chip are both opened, the RRU respectively sends a fault processing command to the base station signal processing chip and the Ethernet switching chip; when the base station signal processing chip receives the fault processing command, determining that the data format of the fault processing command is the Ethernet data format by judging, and not processing the fault processing command; when the ethernet switching chip receives the fault processing command, the data format of the fault processing command is determined to be the ethernet data format by judgment, and fault processing is performed on the RRU according to the fault processing command, such as returning to the state of the RRU or repairing the RRU.
Preferably, when only one of the connection between the IR optical port and the base station signal processing chip and the connection between the IR optical port and the ethernet switching chip is open, and the currently open connection is the connection between the IR optical port and the base station signal processing chip, the RRU switches the connection between the currently open IR optical port and the base station signal processing chip to the connection between the IR optical port and the ethernet switching chip by determining that the number of times of resetting the RRU reaches a first threshold, and makes the connection holding time between the IR optical port and the ethernet switching chip satisfy a second threshold. Wherein, the first threshold and the second threshold can be set by those skilled in the art as appropriate according to actual conditions. And switching is carried out when the RRU resetting frequency is determined to reach the first threshold value, so that the RRU is ensured to be in a fault state indeed, cannot be accessed to a base station, and cannot be operated through the base station side, and the RRU fault is prevented from being misjudged. After the current connection is switched, the connection holding time of the IR optical port and the Ethernet switching chip meets a second threshold value, and enough time for necessary operation of the fault processing control terminal on the RRU can be ensured.
More preferably, the RRU receives an open hold command sent by the fault processing control terminal within the hold time of the second threshold, so that the connection between the IR optical port and the ethernet switching chip is always in an open state before the fault processing is completed. By the opening maintaining command, the connection between the IR optical port and the Ethernet switching chip is opened all the time before the fault processing is finished, so that the time for repairing the RRU is fully ensured.
Step S208: and the Ethernet switching chip receives the fault processing command and carries out fault processing on the RRU according to the fault processing command.
The fault processing of the RRU by the ethernet switching chip according to the fault processing command may be performed by those skilled in the art with reference to the related art, and the details of the present invention are not described herein.
Through the embodiment, when one path of a signal entering from an IR optical port of the RRU is communicated to a base station signal processing chip, such as one SERDES chip, and the RRU is only opened to a certain path, the switching of the two paths that the signal of the RRU is only communicated to the Ethernet switching chip and the base station signal processing chip is controlled by a command is supported; and when the signal entering through the IR optical port is led to both the Ethernet switching chip and the base station signal processing chip, controlling the Ethernet switching chip not to process the non-Ethernet signal and controlling the base station signal processing chip not to process the Ethernet signal. Therefore, the processing of the fault processing command of the Ethernet data format by the Ethernet switching chip is realized, the RRU is positioned and repaired without climbing a high tower or connecting an Ethernet debugging interface of the RRU to a high building after the RRU has the problem, and the RRU can be directly operated in a machine room through an optical fiber connected with the RRU, so that the labor and the time are saved, and the operation risk is reduced; and the Ethernet debugging interface before the RRU is removed, and the Ethernet debugging interface and the IR optical port are integrated together, so that the cost is saved.
EXAMPLE III
Referring to fig. 5, a flowchart illustrating steps of a fault handling method according to a third embodiment of the present invention is shown.
In this embodiment, for example, only one of the connection between the IR optical port and the SERDES chip of the base station signal processing chip and the connection between the IR optical port and the ethernet switching chip is opened, the fault processing method of this embodiment includes the following steps:
step S302: and when the RRU is operated, only one of the Ethernet exchange chip channel and the SERDES chip channel is opened, and the IR optical port signal is only led to one of the chips.
The RRU supports the command to switch the channel and maintain the channel, when the RRU is opened as the channel of the Ethernet exchange chip, the channel can be switched to the channel of the SERDES chip through the command, when the channel is the channel of the SERDES chip, the RRU can be maintained in the channel through the command, and after the link is communicated, the RRU can be switched to the channel of the Ethernet exchange chip through the command. And the path to the SERDES chip is opened by the RRU under the condition of normal operation.
Step S304: judging whether the RRU operates normally and can be accessed to the base station normally, if so, executing step S320; if not, go to step S306.
The determination of whether the RRU operates normally and whether the RRU can access the base station normally can be implemented by those skilled in the art using related technologies, for example, the determination of whether the output power of each RRU channel is normal, the standing-wave ratio is normal, the RRU temperature is normal, and the like, which is not limited in this respect.
When the RRU is judged to be abnormal in operation and can not be normally accessed to the base station, the RRU is proved to have a problem and needs to be subjected to fault treatment.
Step S306: and determining that the RRU has a fault and cannot be accessed to the base station.
Step S308: the RRU judges whether the current path of the RRU is an Ethernet switching chip path, if so, the step S310 is executed; if not, go to step S316.
Step S310: the RRU judges whether the Ethernet exchange chip access holding time exceeds 30 minutes, and the access is switched to an SERDES chip access, if yes, the step S304 is returned; if not, go to step S312.
The method comprises the following steps that a path leading to an SERDES chip is opened under the condition that the RRU normally operates, a reset mechanism is added after the RRU cannot be accessed, the frequency of RRU reset is recorded in a high-end memory of the RRU, the path of the RRU is switched to a path leading to an Ethernet exchange chip after the RRU is reset for 5 times, and the time for opening the path of the Ethernet exchange chip is 30 minutes; the RRU is connected to the PC within 30 minutes, and the opening and holding command can be sent to the RRU through the PC side so that the RRU can be kept opening a channel of the Ethernet switching chip; and when the RRU is positioned and repaired, the RRU is switched to a SERDES chip channel by a command or reset. If the opening maintaining command is not sent and is kept in the path of the Ethernet switching chip, the RRU automatically switches to the path of the SERDES chip after the time of 30 minutes.
Step S312: and connecting the optical fiber of the base station side connected with the RRU to a PC (personal computer), connecting the RRU (particularly an IR (infrared) optical port of the RRU) through the PC, and inputting a command to enable the RRU to keep an open channel as a channel of an Ethernet switching chip for checking and repairing the RRU.
Step S314: judging whether the repair is successful, if not, returning to the step S304; if yes, go to step S320 to end the process.
Step S316: judging whether the self-reset frequency of the RRU after the RRU can not access the base station reaches 5 times, if so, executing step S318; if not, the process returns to step S308.
Step S318: the RRU opens the ethernet switching chip path and performs step S310.
Step S320: and the RRU is accessed to the base station to normally operate, and a signal path of the IR optical port only leads to the SERDES chip.
According to the embodiment, a hardware structure and a software function of the RRU support that a signal entering through an IR optical port is led to either an Ethernet switching chip or an SERDES chip, when the RRU normally works, the signal entering the RRU through the IR optical port is only transmitted to the SERDES chip, when the RRU cannot be accessed to a base station due to self abnormality, the signal entering the RRU through the IR optical port is only transmitted to the Ethernet switching chip, at the moment, a pair of optical fibers connected with the RRU at a base station side are pulled out, the optical fibers at the base station side are connected to an optical port input port of an optical modem, a PC end is connected to an electrical port output port of the optical modem, the PC side is connected to the RRU through special software, and the state of the RRU is checked or the RRU is repaired. Therefore, the RRU supports the hardware structure and the software function that one path of a signal entering the RRU through the IR optical port is communicated with the SERDES chip, the other path is communicated with the Ethernet exchange chip, and only one path is opened; the switching time of the path leading to the Ethernet switching chip and the SERDES chip is opened by the RRU; furthermore, the RRU is directly operated in the machine room through the optical fiber connected with the RRU, so that the labor and the time are saved, and the operation risk is reduced.
Example four
Referring to fig. 6, a flowchart illustrating steps of a fault handling method according to a fourth embodiment of the present invention is shown.
In this embodiment, for example, the connection between the IR optical port and the SERDES chip of the base station signal processing chip and the connection between the IR optical port and the ethernet switching chip are both opened, the fault processing method of this embodiment includes the following steps:
step S402: and when the RRU is operated, the Ethernet exchange chip channel and the SERDES chip channel are both opened, and the IR optical port signal is respectively communicated to the Ethernet exchange chip and the SERDES chip.
Step S404: judging whether the RRU operates normally and can access the base station normally, if so, executing step S412; if not, go to step S406.
Step S406: and determining that the RRU has a fault and cannot be accessed to the base station.
Step S408: and connecting the optical fiber of the base station side connected with the RRU to a PC (personal computer), and connecting the RRU (particularly an IR (infrared) optical port of the RRU) through the PC to check and repair the RRU.
The hardware structure and software function of the RRU support that signals entering through the IR optical port are led to both the Ethernet switching chip and the SERDES chip, wherein the Ethernet switching chip does not process signals in a non-Ethernet data format, and the SERDES chip does not process signals in an Ethernet data format. When the RRU is normally used, both the two paths are in an open state; when the RRU fails, connecting an optical fiber at the other end of the RRU, namely an optical fiber connected with the BBU side, to an optical port input port of an optical modem, connecting a PC side to an electrical port output port of the optical modem, and connecting the PC side to the RRU through special software to check the state of the RRU or repair the RRU.
Step S410: judging whether the RRU operates normally and can be accessed to a base station, if so, executing a step S412; if not, the process returns to step S406.
Step S412: and the RRU is accessed to the base station to normally operate, the Ethernet switching chip channel and the SERDES chip channel are both opened, and IR optical port signals are respectively communicated to the Ethernet switching chip and the SERDES chip.
According to the embodiment, the RRU supports the simultaneous transmission of the signals entering through the IR optical port to the Ethernet switching chip and the SERDES chip, the Ethernet switching chip discards the messages in the non-Ethernet data format without performing other processing, and the SERDES chip does not process the messages in the Ethernet data format, so that RRU fault processing under the condition that the two channels of the RRU are simultaneously opened by directly connecting the optical fibers of the RRU in a machine room is realized, manpower and time are saved, and the operation risk is reduced.
EXAMPLE five
Referring to fig. 7, a block diagram of a structure of an RRU according to a fifth embodiment of the present invention is shown.
The RRU of this embodiment has an IR optical port, a base station signal processing chip, and an ethernet switching chip. The IR optical port is respectively connected with a base station signal processing chip and an Ethernet switching chip in the RRU. When the RRU fails, the optical fiber on the original base station side of the RRU is used and connected with a failure processing control end through an optical modem, and the failure processing control end carries out the failure processing of the RRU.
The RRU of this embodiment includes: a connection receiving module 502, configured to, when an RRU fails, connect a failure processing control terminal through an optical modem using an IR optical port of the RRU, and receive a failure processing command sent by the failure processing control terminal through the IR optical port, where the IR optical port is connected to a base station signal processing chip and an ethernet switching chip in the RRU, respectively; the fault processing module 504 is configured to send a fault processing command to the ethernet switching chip, so that the ethernet switching chip performs fault processing on the RRU according to the fault processing command.
Preferably, the fault processing module 504 is configured to determine whether a currently opened connection is a connection between the IR optical port and the ethernet switching chip when only one of the connection between the IR optical port and the base station signal processing chip and the connection between the IR optical port and the ethernet switching chip is opened; if yes, sending a fault processing command to the Ethernet switching chip; if not, the currently opened connection is switched to the connection between the IR optical port and the Ethernet switching chip, and the fault processing command is sent to the Ethernet switching chip.
Preferably, when the currently opened connection is switched to the connection between the IR optical port and the ethernet switching chip, the fault processing module 504 determines that the number of times of resetting the RRU reaches a first threshold; and switching the connection between the currently opened IR optical port and the base station signal processing chip into the connection between the IR optical port and the Ethernet switching chip, and enabling the connection holding time of the IR optical port and the Ethernet switching chip to meet a second threshold value.
Preferably, the fault processing module 504 is further configured to receive an open hold command sent by the fault processing control terminal within the hold time of the second threshold, so that the connection between the IR optical port and the ethernet switching chip is in an open state until the fault processing is completed.
Preferably, the fault processing module 504 is configured to send a fault processing command to the base station signal processing chip and the ethernet switching chip when both the connection between the IR optical port and the base station signal processing chip and the connection between the IR optical port and the ethernet switching chip are open; when the base station signal processing chip receives the fault processing command, determining that the data format of the fault processing command is an Ethernet data format, and not processing the fault processing command; and when the Ethernet switching chip receives the fault processing command, determining that the data format of the fault processing command is the Ethernet data format, and performing fault processing on the RRU according to the fault processing command.
The RRU of this embodiment is used to implement the function of the RRU part in the corresponding fault processing method in the foregoing multiple method embodiments, and has the beneficial effects in the corresponding method embodiments, which are not described herein again.
EXAMPLE six
Referring to fig. 8, a block diagram of a fault handling system according to a sixth embodiment of the present invention is shown.
The fault handling system of the present embodiment includes: a fault handling control 602, an optical modem 604, and an RRU 606. The fault processing control terminal 602 is connected to an IR optical port of the RRU606 through the optical modem 604, and the IR optical port is connected to a base station signal processing chip and an ethernet switching chip in the RRU606, respectively.
Wherein,
the fault processing control end 602 is configured to send a fault processing command to the RRU606 and receive a fault processing result returned by the RRU606 when the RRU606 fails.
The optical modem 604 is configured to modulate an electrical signal of the fault handling command sent by the fault handling control terminal 602 into an optical signal and send the optical signal to the RRU606, and modulate an optical signal of a fault handling result sent by the RRU606 into an electrical signal and send the electrical signal to the fault handling control terminal 602.
And the RRU606 is configured to receive the fault processing command through the IR optical port and send the fault processing command to the ethernet switching chip, so that the ethernet switching chip performs fault processing on the RRU606 according to the fault processing command.
Preferably, the RRU606 is configured to receive the fault processing command through the IR optical port, and determine whether the currently opened connection is the connection between the IR optical port and the ethernet switching chip when only one of the connection between the IR optical port and the base station signal processing chip and the connection between the IR optical port and the ethernet switching chip is opened; if so, sending the fault processing command to the Ethernet switching chip, so that the Ethernet switching chip performs fault processing on the RRU606 according to the fault processing command; if not, switching the currently opened connection to the connection between the IR optical port and the Ethernet switching chip, and sending a fault processing command to the Ethernet switching chip to enable the Ethernet switching chip to perform RRU fault processing according to the fault processing command; or, the RRU606 is configured to receive the fault processing command through the IR optical port, and send the fault processing command to the base station signal processing chip and the ethernet switching chip when both the connection between the IR optical port and the base station signal processing chip and the connection between the IR optical port and the ethernet switching chip are open; when the base station signal processing chip receives the fault processing command, determining that the data format of the fault processing command is an Ethernet data format, and not processing the fault processing command; when the ethernet switching chip receives the fault processing command, the data format of the fault processing command is determined to be the ethernet data format, and the RRU606 is subjected to fault processing according to the fault processing command.
Preferably, when only one of the connection between the IR optical port and the base station signal processing chip and the connection between the IR optical port and the ethernet switching chip is opened, the RRU606 determines that the RRU reset time reaches a first threshold value when the currently opened connection is switched to the connection between the IR optical port and the ethernet switching chip; and switching the connection between the currently opened IR optical port and the base station signal processing chip into the connection between the IR optical port and the Ethernet switching chip, and enabling the connection holding time of the IR optical port and the Ethernet switching chip to meet a second threshold value.
Preferably, when only one of the connection between the IR optical port and the base station signal processing chip and the connection between the IR optical port and the ethernet switching chip is opened, and the currently opened connection is switched to the connection between the IR optical port and the ethernet switching chip, the RRU606 also receives an opening hold command sent by the fault processing control terminal 602 within the hold time of the second threshold, so that the connection between the IR optical port and the ethernet switching chip is always in an open state before the fault processing is completed.
The fault handling system of this embodiment is configured to implement the corresponding fault handling method in the foregoing multiple method embodiments, and has the beneficial effects of the corresponding method embodiment, which are not described herein again.
According to the invention, on one hand, the RRU supports that one path of a signal entering the RRU through the IR optical port is communicated with the SERDES chip, the other path is communicated with the Ethernet exchange chip, and only the hardware structure and the software function of one path are opened, and the RRU performs RRU fault treatment under the condition that the RRU opens the switching of the paths communicated with the Ethernet exchange chip and the SERDES chip; on the other hand, the RRU supports that signals entering through the IR optical port are simultaneously transmitted to the Ethernet switching chip and the SERDES chip, the Ethernet switching chip discards messages in a non-Ethernet data format without performing other processing, and the SERDES chip does not process RRU fault processing under the condition that the messages in the Ethernet data format are not processed. According to the invention, after the RRU cannot be accessed due to the self-problem of the RRU, the RRU does not need to be positioned and repaired by climbing a high tower or connecting an Ethernet debugging interface of the RRU with a high building, and the RRU can be directly operated in a machine room through the optical fiber connected with the RRU, so that the labor and the time are saved, and the operation risk is reduced; and an Ethernet debugging interface before the RRU is removed, and the debugging interface and the IR interface are integrated together, so that the realization cost of the RRU is saved.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. As for the RRU and the embodiment of the fault handling system, since they are basically similar to the embodiment of the method, the description is simple, and for the relevant points, reference may be made to part of the description of the embodiment of the method.
The fault processing method, the RRU and the fault processing system provided by the present invention are introduced in detail, and a specific example is applied in the text to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understand the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A method of fault handling, comprising:
when a radio remote unit RRU fails, the RRU uses an IR optical port of the RRU to connect a fault processing control end through an optical modem, and receives a fault processing command sent by the fault processing control end through the IR optical port, wherein the IR optical port is respectively connected with a base station signal processing chip and an Ethernet switching chip in the RRU;
the RRU sends the fault processing command to the Ethernet switching chip, so that the Ethernet switching chip carries out fault processing on the RRU according to the fault processing command;
wherein, the step of sending the fault processing command to the ethernet switching chip by the RRU includes: when only one of the connection between the IR optical port and the base station signal processing chip and the connection between the IR optical port and the Ethernet switching chip is opened, the RRU judges whether the currently opened connection is the connection between the IR optical port and the Ethernet switching chip; if so, the RRU sends the fault processing command to the Ethernet switching chip; if not, the RRU switches the currently opened connection into the connection between the IR optical port and the Ethernet switching chip, and sends the fault processing command to the Ethernet switching chip.
2. The method of claim 1, wherein the RRU switching the currently open connection to the connection between the IR optical port and the ethernet switching chip comprises:
the RRU determines that the RRU resetting frequency reaches a first threshold value;
and switching the currently opened connection between the IR optical port and the base station signal processing chip into the connection between the IR optical port and the Ethernet switching chip, and enabling the connection holding time of the IR optical port and the Ethernet switching chip to meet a second threshold value.
3. The method of claim 2, further comprising:
and the RRU receives an opening maintaining command sent by the fault processing control end within the maintaining time of the second threshold value, so that the connection between the IR optical port and the Ethernet switching chip is always in an opening state before the fault processing is finished.
4. The method of claim 1, wherein the RRU sends the failure handling command to the ethernet switching chip, and the step of enabling the ethernet switching chip to perform the failure handling of the RRU according to the failure handling command comprises:
when the connection between the IR optical port and the base station signal processing chip and the connection between the IR optical port and the Ethernet switching chip are both opened, the RRU respectively sends the fault processing command to the base station signal processing chip and the Ethernet switching chip;
when the base station signal processing chip receives the fault processing command, determining that the data format of the fault processing command is an Ethernet data format, and not processing;
and when the Ethernet switching chip receives the fault processing command, determining that the data format of the fault processing command is the Ethernet data format, and performing fault processing on the RRU according to the fault processing command.
5. A remote radio unit, RRU, comprising:
a connection receiving module, configured to, when the RRU fails, connect a fault processing control terminal through an optical modem using an IR optical port of the RRU, and receive a fault processing command sent by the fault processing control terminal through the IR optical port, where the IR optical port is connected to a base station signal processing chip and an ethernet switching chip in the RRU, respectively;
the fault processing module is used for sending the fault processing command to the Ethernet switching chip so that the Ethernet switching chip can carry out fault processing on the RRU according to the fault processing command;
the fault processing module is configured to determine whether a currently-opened connection is a connection between the IR optical port and the ethernet switching chip when only one of the connection between the IR optical port and the base station signal processing chip and the connection between the IR optical port and the ethernet switching chip is opened; if yes, sending the fault processing command to the Ethernet switching chip; if not, the currently opened connection is switched to the connection between the IR optical port and the Ethernet switching chip, and the fault processing command is sent to the Ethernet switching chip.
6. The RRU of claim 5, wherein the fault handling module determines that the RRU reset number reaches a first threshold when switching the currently opened connection to the connection between the IR optical port and the Ethernet switch chip; and switching the currently opened connection between the IR optical port and the base station signal processing chip into the connection between the IR optical port and the Ethernet switching chip, and enabling the connection holding time of the IR optical port and the Ethernet switching chip to meet a second threshold value.
7. The RRU of claim 6, wherein the fault handling module is further configured to receive an on-hold command sent by the fault handling control terminal within the holding time of the second threshold, so that the connection between the IR optical port and the ethernet switching chip is always in an on state before the fault handling is completed.
8. The RRU of claim 5, wherein the fault handling module is configured to send the fault handling command to the base station signal processing chip and the ethernet switching chip when both the connection between the IR optical port and the base station signal processing chip and the connection between the IR optical port and the ethernet switching chip are open; when the base station signal processing chip receives the fault processing command, determining that the data format of the fault processing command is an Ethernet data format, and not processing; and when the Ethernet switching chip receives the fault processing command, determining that the data format of the fault processing command is the Ethernet data format, and performing fault processing on the RRU according to the fault processing command.
9. A fault handling system, comprising: the system comprises a fault processing control end, an optical modem and a Radio Remote Unit (RRU); the fault processing control end is connected with an IR optical port of the RRU through the optical modem, and the IR optical port is respectively connected with a base station signal processing chip and an Ethernet switching chip in the RRU;
wherein,
the fault processing control terminal is used for sending a fault processing command to the RRU when the RRU has a fault, and receiving a fault processing result returned by the RRU;
the optical modem is configured to modulate an electrical signal of the fault processing command sent by the fault processing control terminal into an optical signal and send the optical signal to the RRU, and modulate an optical signal of the fault processing result sent by the RRU into an electrical signal and send the electrical signal to the fault processing control terminal;
the RRU is used for receiving the fault processing command through the IR optical port and sending the fault processing command to the Ethernet switching chip, so that the Ethernet switching chip carries out fault processing on the RRU according to the fault processing command;
the RRU is configured to receive the fault processing command through the IR optical port, and determine whether a currently-opened connection is a connection between the IR optical port and the ethernet switching chip when only one of the connection between the IR optical port and the base station signal processing chip and the connection between the IR optical port and the ethernet switching chip is opened; if so, sending the fault processing command to the Ethernet switching chip, so that the Ethernet switching chip performs fault processing on the RRU according to the fault processing command; if not, switching the currently opened connection to the connection between the IR optical port and the Ethernet switching chip, and sending the fault processing command to the Ethernet switching chip, so that the Ethernet switching chip performs fault processing on the RRU according to the fault processing command.
10. The system of claim 9,
the RRU is further configured to receive the fault processing command through the IR optical port, and when both the connection between the IR optical port and the base station signal processing chip and the connection between the IR optical port and the ethernet switching chip are open, send the fault processing command to the base station signal processing chip and the ethernet switching chip, respectively; when the base station signal processing chip receives the fault processing command, determining that the data format of the fault processing command is an Ethernet data format, and not processing; and when the Ethernet switching chip receives the fault processing command, determining that the data format of the fault processing command is the Ethernet data format, and performing fault processing on the RRU according to the fault processing command.
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| CN101193397A (en) * | 2006-11-28 | 2008-06-04 | 中兴通讯股份有限公司 | A management and maintenance method based on RF remote communication |
| CN101360311A (en) * | 2007-07-30 | 2009-02-04 | 大唐移动通信设备有限公司 | Test maintaining system and method |
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