CN104184640B - The base station system and fault self-recovery method, apparatus of a kind of annular networking - Google Patents
The base station system and fault self-recovery method, apparatus of a kind of annular networking Download PDFInfo
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Abstract
The application embodiment discloses a kind of base station system of annular networking, which includes：At least one base station, the base station includes the upper level network element of N number of annular member device and at least one annular member device, N number of annular member device mutually cascades, the one end not cascaded in the annular member device mutually cascaded is connected to the first optical port, the other end not cascaded is connected to the second optical port, first optical port and the second optical port are located on the identical baseband board in the same upper level network element, or, respectively on the different baseband boards in the same upper level network element or on the baseband board of different upper level network elements, the N is the natural number more than or equal to 1.The application embodiment also discloses the fault self-recovery method and its device of a kind of base station system of annular networking.Embodiments herein mode extends the application scenarios of annular networking.
Description
Technical field
This application involves mobile communication technology field, the base station system of more particularly to a kind of annular networking and fault self-recovery side
Method, device.
Background technology
According to Open Base Station Architecture alliance (OBSAI, Open Base Station Architecture
Initiative definition), public land mobile network (PLMN, Public Land Mobile Network) is by multiple base stations
The base station system of composition is realized.Multiple base station composition base station systems are involved in the networking mode of each base station, different networkings
Mode is different by the influence to mobile communication.Typically, the networking mode of base station system includes bus-type, star-like, annular etc..
But in the prior art, various annular networking mode application scenarios are single, it is impossible to adapt to the requirement of a variety of base station types.Than
Such as, for non-distributed base station, if carrying out annular networking, the both ends of ring network are not only likely located at same BSC or RNC
Situation, and may need to be located at different BSC or RNC.In addition, during the network operation, based on a variety of causes, looped network may
Break down, looped network self-healing ability as quick as possible is at this moment also needed to, to recover normal business, however, existing networking
Mode limits the extensive use of fault self-recovery.
The content of the invention
In order to solve the above technical problems, the embodiment of the present application provides the base station system and fault self-recovery of a kind of annular networking
Method, apparatus, with the applicable scene of expansion hula networking, realizes the fault self-recovery of annular networking.
The base station system for the annular networking that presently filed embodiment provides includes：At least one base station, the base station bag
The upper level network element of N number of annular member device and at least one annular member device is included, N number of annular member device is mutual
Cascade, the one end not cascaded in the annular member device mutually cascaded is connected to the first optical port, and the other end not cascaded is connected to
Second optical port, first optical port and the second optical port are located on the different baseband boards in the same upper level network element or difference
On the baseband board of upper level network element, the N is the natural number more than or equal to 1.
Preferably, when the base station is non-distributed base station, it is described annular member device for base station transceiver BTS,
Base station NodeB or evolved base station eNodeB, when the base station is distributed base station, the annular member device is remote for radio frequency
End unit RRU；When the annular networking is 2G/3G base station networks, the upper level network element is base station controller BSC or wireless network
Network controller RNC, when the annular networking is RF remote unit RRU annular networkings, the upper level network element is Base Band Unit
BBU, when the annular networking is LTE network base station annular networking, the upper level network element is upper for the annular member device
Level-one access gateway and management equipment.
Presently filed embodiment additionally provides a kind of fault self-recovery method of annular networking base station system, and the method is fitted
For the base station system of distributed base station composition, the annular networking base station system is foregoing base station system, and this method includes：
Obtain the configuration ginseng that the RF remote unit RRU on annular networking is obtained when accessing the optical port of Base Band Unit BBU
Number；
When the loop on detecting annular networking breaks down, traffic direction on the loop passes through in the reverse direction
First control word notifies the first Base Band Unit BBU, and each radio frequency is notified by the second control word in the traffic direction on the loop
Far-end unit RRU and the second Base Band Unit BBU；
Judge preset Self healing Strategy type, the Self healing Strategy type includes rapidly self-healing and self-healing at a slow speed；
According to preset corresponding Self healing Strategy according to the configuration parameter and the first control word and/or the second control word pair
Each RF remote unit RRU carries out link switchover or link re-establishment, the cell on each RF remote unit RRU delete/
Rebuild, carrying out base band data commutative relation to the first Base Band Unit BBU, the second Base Band Unit BBU reconfigures, to realize failure certainly
More.
Preferably, the preset Self healing Strategy is rapidly self-healing strategy, then：
After the first control word is received, base band data friendship is carried out to the first Base Band Unit BBU according to the configuration parameter
The relation of changing reconfigures；
It is remote to each radio frequency below trouble point in traffic direction according to the configuration parameter after the second control word is received
End unit RRU carry out the link switchover in up and down direction and establish the second Base Band Unit BBU to trouble point in traffic direction with
Under each RF remote unit RRU between link.
It is further preferred that after the first control word is received, the first Base Band Unit BBU is notified by way of hard break
On the first baseband processing unit BPU, which utilizes the configuration parameter in interrupt processing function
Base band data exchange is completed to reconfigure；
After the second control word is received, the second base band on the second Base Band Unit BBU is notified by way of hard break
Processing unit BPU, the second baseband processing unit BPU establish Base Band Unit in interrupt processing function using the configuration parameter
Link between each RF remote unit RRU of below BBU to trouble point in traffic direction.
Preferably, the preset Self healing Strategy type is Self healing Strategy at a slow speed, then：
After the first control word is received, base band data friendship is carried out to the first Base Band Unit BBU according to the configuration parameter
The relation of changing reconfigures, and deletes the cell established on each RF remote unit RRU in traffic direction below trouble point；
After the second control word is received, each RF remote unit RRU below trouble point in traffic direction is attempted to build
Vertical OM channel, and weight carries out the cell on each RF remote unit RRU according to the result for establishing OM channel
Build；Base band data relation is carried out according to the configuration parameter to the second Base Band Unit BBU to reconfigure.
It is further preferred that each RF remote unit RRU to below trouble point in traffic direction attempts to establish behaviour
Specifically included as maintenance channel：
Judge whether each RF remote unit RRU in traffic direction below trouble point has configuration parameter；
If so, then attempt to establish OM channel according to the configuration parameter, untill heartbeat is lost；If
It is no, then reattempted to after heartbeat loss and establish OM channel.
It is it is further preferred that described according to establishing the result of OM channel to small on each RF remote unit RRU
Area carries out reconstruction and specifically includes：
If establishing the result of OM channel to be successfully established, cell is re-established；
It is each below trouble point on latency services direction if the result for establishing OM channel is not set up success
RF remote unit RRU resets accesses the second Base Band Unit BBU again.
Preferably, obtained during the optical port of the RF remote unit RRU access Base Band Unit BBU obtained on annular networking
Configuration parameter specifically include：
The first optical port on the baseband board of Base Band Unit BBU is controlled to close, the second optical port of control is opened and receives initiation to connect
The RF remote unit RRU entered, retains the configuration parameter of Base Band Unit of the access with the first optical port；
The second optical port on the baseband board of Base Band Unit BBU is controlled to close, the first optical port of control is opened and receives initiation to connect
The RF remote unit RRU entered, retains the configuration parameter of Base Band Unit BBU of the access with the second optical port.
It is further preferred that first control word is the Z.80.0 control word in multiplexing CPRI specifications, first control
Word includes the flag bit for being used for label detection to link failure；Second control word is multiplexing fiber-optic switching control word
Z.144.0, which includes the flag bit for being used for label detection to link failure.
Presently filed embodiment additionally provides a kind of fault self-recovery device of annular networking base station system.The device is applicable in
In the base station system of distributed base station composition, the annular networking base station system is foregoing base station system, which includes：Ginseng
Number acquiring unit, malfunction notification unit, tactful judging unit and fault self-recovery unit, wherein：
The parameter acquiring unit, for obtaining the RF remote unit RRU on annular networking in access Base Band Unit BBU
Optical port when obtained configuration parameter；
The malfunction notification unit, on detecting annular networking loop break down when, on the loop
Traffic direction notifies the first Base Band Unit BBU by the first control word in the reverse direction, leads in the traffic direction on the loop
Cross the second control word and notify each RF remote unit RRU and the second Base Band Unit BBU；
The strategy judging unit, for judging preset Self healing Strategy type, the Self healing Strategy type includes quick
Self-healing and at a slow speed self-healing；
The fault self-recovery unit, for being controlled according to preset corresponding Self healing Strategy according to the configuration parameter and first
Word processed and/or the second control word carry out link switchover or link re-establishment to each RF remote unit RRU, to each RF remote unit
Cell on RRU is deleted or rebuild, and carrying out base band data to the first Base Band Unit BBU, the second Base Band Unit BBU exchanges pass
System reconfigures, to realize fault self-recovery.
The annular networking base station system that presently filed embodiment provides, two optical port can be located at same higher level's net
On identical baseband board in member, either respectively on the different baseband boards in the same upper level network element or different upper level network elements
Baseband board on, base station no matter what type, the both ends of the base station system support ring originate from same baseband board, difference
Baseband board but same upper level network element and different upper level network elements, have adapted to various base station types, extend and have refined annular
The application scenarios of networking.It can be realized to ring network in addition, the embodiment of the present application provides the fault self-recovery scheme based on ring network
The self-healing of failure.
Brief description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in application, for those of ordinary skill in the art, without creative efforts,
Other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is one embodiment networking structure figure of the base station system of annular networking；
Fig. 2 a are one of networking structure implementation situation of base station system of annular networking；
Fig. 2 b are the two of the networking structure implementation situation of the base station system of annular networking；
Fig. 2 c are the three of the networking structure implementation situation of the base station system of annular networking；
Fig. 3 is the flow chart of one embodiment of the fault self-recovery method of the base station system of annular networking；
Fig. 4 a are one of latency measurement signaling diagram；
Fig. 4 b are the two of latency measurement signaling diagram；
Fig. 4 c establish signaling diagram for relevant parameter configuration and cell；
Fig. 5 is the flow chart of another embodiment of the fault self-recovery method of the base station system of annular networking；
Fig. 6 is that the fault self-recovery device of the base station system of annular networking forms structure diagram.
Embodiment
It is in order to make those skilled in the art better understand the technical solutions in the application, real below in conjunction with the application
The attached drawing in example is applied, the technical solution in the embodiment of the present application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.It is common based on the embodiment in the application, this area
Technical staff's all other embodiments obtained without making creative work, should all belong to the application protection
Scope.
Referring to Fig. 1, the figure shows one embodiment networking structure of the base station system of the annular networking of the application.This is
System 10 includes：At least one base station, base station include the upper level network element 12 of 4 annular member devices 11 and 1 annular member device,
4 annular member devices mutually cascade, and one end S1 not cascaded in the annular member device mutually cascaded is connected to the first optical port
IR1, the other end S2 not cascaded are connected to the second optical port IR2, the first optical port IR1 and the second optical port IR2 and are located at same higher level
On identical baseband board in network element.In this embodiment, it is necessary to be described as follows some：
When can be shared in actual application middle ring shape member device by other base stations, such as, in present mainstream
Base station compositional model in, among the separated framework of baseband processing unit BBU and RF remote unit RRU of base station, RRU can be with
Belong to multiple base stations, in other words each annular member device can be used for representing other base stations in Fig. 1, so as to form a base
Stand system, certainly, simplest base station system can only include a base station, so that the annular member device conducts of 4 in figure
One modular unit of the list base station.Second, the quantity of the annular member device mutually cascaded in this embodiment is 4, it is actual
On, in specific business procedure, the quantity of the annular member device can be more or less, as long as without prejudice to being erected at the base
The business realizing stood in system.Third, two optical ports IR1 and IR2 are located on same baseband board in this embodiment, it is actual
On, during concrete application, the first optical port IR1 and the second optical port IR2 can be positioned at the different base band of same upper level network element
On plate, it can also be located on the respective baseband board of different upper level network elements.
In the above-described embodiments, annular member device and upper level network element are used in different base station types or annular networking
In the case of heterogeneous networks, different specific components can be presented as.Such as traditional non-distributed base station, annular
Member device can show as base station transceiver BTS, base station NodeB or evolved base station eNodeB, for distributed base station
For, show as RRU.When annular networking is 2G/3G base station networks, the upper level network element of annular member device can be that base station is controlled
Device BSC or radio network controller (RNC) processed, when annular networking is RF remote unit RRU annular networkings, upper level network element can be with
For Base Band Unit BBU, when annular networking is LTE network base station annular networking, upper level network element can be annular member device
Upper level access gateway and management equipment.
In order to illustrate more clearly of the technical solution of the annular networking base station system of the application, base station class in a distributed manner below
Explained exemplified by type.As it was previously stated, in distributed base station, single base station is usually by a baseband processing unit BBU and more
A RF remote unit RRU compositions.Baseband processing unit BBU can include master clock unit (CCU, Control Clock
Unit), baseband processing unit (BPU, Baseband Processing Unit), power supply unit (PSU, Power Supply
Unit), fan control unit (FCU, Fan Control Unit) and backboard, wherein：Master clock unit CCU is used for realization
The function for CCB, TB module that OBSAI is defined, may have multiple CCU in a BBU, when there are during two CCU, the two structure
Into main and standby relation；Baseband processing unit BPU is used for realization the Base-Band Processing function for the BB modules that OBSAI is defined.Under normal conditions,
There is optical fiber interface (also known as optical port) on BPU, interconnected BBU and RRU by these " optical ports ".During practical business, to carry
BPU, is usually inserted on the groove position of CCU by high power system capacity.Divide three kinds of situations that annular networking is specifically discussed below：
The first implementation situation：Annular networking based on single baseband board.Referring to Fig. 2 a, include 4 in the annular networking
RRU (is individually identified as RRU1, RRU2, RRU3, RRU4), and two mouths are output and input in each RRU, passes through these inputs
And delivery outlet realize the cascade between RRU, RRU mutually cascade in one end (not cascading end) of RR1 and one end of RRU4 (do not cascade
End) it is free end, which is connected to the optical port on the BPU in BBU, and specifically, RRU1 is connected to the light on BPU grooves position 2
Mouth IR1, RRU2 is connected to the optical port R1 on BPU grooves position 2, so as to fulfill annular networking.In the figure, although showing BPU's
Two groove positions (groove position 1,2), but in this case, two optical ports are respectively positioned on BPU grooves position 2, i.e., on identical monobasal.
Second of implementation situation：Based on the annular networking across baseband board.Referring to Fig. 2 b, in the annular networking, RRU1's
The IR1 optical ports that end is connected to BPU grooves position 2, the IR1 optical ports for not cascading end and being connected to BPU grooves position 0 of RRU4 are not cascaded.Certainly, originally
Field technology personnel can not also cascade end by two of RRU and be connected to other optical ports of other groove positions of BPU, so as to occur a variety of
Optical port combines, as long as two optical ports in the combination of these optical ports are located at different baseband boards, you can realize the annular across baseband board
Networking.
The third implementation situation：Based on the annular networking across base station.Referring to Fig. 2 c, in the figure, two base stations are shown
The end that do not cascade of BBU, RRU1 may be coupled to any one optical port in first BBU of base station, such as, the BPU grooves position 2 in figure
IR1 optical ports, the end that do not cascade of RRU4 may be coupled to any one optical port in second BBU of base station, such as, BPU grooves position 0
IR1 optical ports.Co-ordination is completed by OMC when business is realized between different base station BBU.
On the base station system basis of above-mentioned annular networking, present invention also provides a kind of annular networking base station system
The embodiment of fault self-recovery method, the embodiment are suitable for the base station system of distributed base station composition, the annular networking base station system
Unite the base station system referred to for previous embodiment.Referring to Fig. 3, the figure shows the flow of this method embodiment, which includes：
Step S31：Obtained during the optical port for obtaining the access Base Band Unit of the RF remote unit RRU on annular networking BBU
Configure parameter；
To realize normal business, each RF remote unit RRU must access Base Band Unit BBU (optical port), and establish
Cell, configuration parameter here include the various configuration parameters for meeting business needs, such as, can be time delay configuration parameter, day
Line configures parameter and the configuration of I/Q data passage etc..These configuration parameter acquirings can be retained in the optical port of Base Band Unit BBU after
Place, can also also be stored in each RF remote unit RRU, subsequently to need when utilizes at the same time.
Step S32：When the loop on detecting annular networking breaks down, the negative side of the traffic direction on the loop
The first Base Band Unit BBU is notified upwardly through the first control word, and the pros of the traffic direction on the loop are upwardly through second
Control word notifies each RF remote unit RRU and the second Base Band Unit BBU；
The loop failure form of expression on annular networking is varied, for example can be two RF remote units
The link cascaded between RRU disconnects, or photo-signal channel signal strength is excessively weak between RRU, but either under which kind of situation
Loop breaks down, and failure can be checked, the mode of inspection can be by checking the presence or absence of optical signal, strong and weak or bottom
Whether step-out etc. determines whether loop breaks down for layer link.Detect loop break down after, will to both direction into
Row fault message transmission.Here direction can be determined using regular traffic direction as with reference to benchmark.Under normal conditions, one
After the completion of a annular networking is set up, actual business will be configured on the loop, the traffic direction of practical business can be from one
The optical port of Base Band Unit BBU in a loop is set out to another Base Band Unit BBU (in identical baseband board or different baseband boards
But in the case of identical Base Band Unit BBU, two Base Band Unit BBU here are identical BBU), or opposite direction, this
Depending on specific business tine and the situation of current annular.The application (is referred to as downlink by positive direction of traffic direction
Direction), after detecting that loop breaks down, upstream RRU (the i.e. RF remote lists in the reverse direction of traffic direction of trouble point
First RRU) it will learn that loop breaks down by the first control word, and in downstream RRU (the i.e. positive directions of traffic direction of trouble point
On RF remote unit RRU) will learn that loop breaks down by the second control word, the first control word here and the second control
Word processed can be pre-defined control word, its main function is to transmit fault message.In actual application, it is contemplated that
With the compatibility of existing way and saving bandwidth resources as far as possible, existing control word can be multiplexed, i.e., to existing control word
Transformed to play the role of transmitting fault message.For example for the first control word, it can be multiplexed in CPRI specifications Z.80
Control word, which includes the flag bit for being used for label detection to link failure, in the conventional form of the control word
Z.80.0 it is used to represent alarm RRU ID, Z.80.1 represents specific warning information, the application sets flag bit 2 and represents on RRU ID
Detect link failure；For the second control word, it can include second control word with multiplexing fiber-optic switching control word Z.144
Flag bit for label detection to link failure.Pass through the transmission of the first control word, the base band in the reverse direction of traffic direction
Optical port on unit B BU will receive the information of loop fault；By the transmission of the second control word, in the positive direction of traffic direction
Each RF remote unit RRU and Base Band Unit BBU in this direction on optical port will receive the information of loop fault.
It should also be noted that, using " first " Base Band Unit BBU and " second " Base Band Unit BBU in this step, still, this is not
It cannot be identical Base Band Unit BBU to mean two Base Band Unit BBU, such as, foregoing based on identical baseband board networking
Under situation, the first Base Band Unit BBU and the second Base Band Unit BBU are identical Base Band Unit.
Step S33：Judge preset Self healing Strategy type, the Self healing Strategy type includes rapidly self-healing and at a slow speed oneself
More；
Here be two classes by Self healing Strategy Type division, i.e., rapidly self-healing and at a slow speed self-healing, it is necessary to explanation be fast here
Fast self-healing and self-healing at a slow speed are opposite concepts, and the other types outside rapidly self-healing type can be described as self-healing at a slow speed, at a slow speed
Other types outside self-healing can be described as rapidly self-healing, can't exclude that there may be this used here as the two relative concepts
The situation of sample：, can also there are base also there are subtype under some self-healing type, such as rapidly self-healing type
This rapidly self-healing and preferable rapidly self-healing etc..Different self-healing types, corresponding self-healing mode have differences, therefore, need here
The self-healing type being currently configured is judged, to take measures to realize self-healing for different self-healing types.
Step S34：According to preset corresponding Self healing Strategy according to the configuration parameter and the first control word and/or second
Control word carries out link switchover or link re-establishment to each RF remote unit RRU, to the cell on each RF remote unit RRU into
Row deletion/reconstruction, carries out base band data commutative relation to the first Base Band Unit BBU, the second Base Band Unit BBU and reconfigures, with reality
Existing fault self-recovery.
Fault message is delivered to relevant RF remote by above-described embodiment after loop fault is detected by control word
Unit R RU and Base Band Unit, and loop self-healing is carried out according to current self-healing type, this mode can realize loop certainly automatically
More.Different self-healing modes can be selected for different self-healing Configuration Types by being additionally, since, and meet actual business requirement,
Extend the application range of annular networking fault self-recovery.
Needing to obtain configuration parameter in the step S31 of above-described embodiment, the mode of acquisition configuration parameter is very much, such as,
Handshake mechanism is directly taken to obtain configuration parameter in RRU and BBU, these configuration parameters can be preserved only according to actual needs
On Base Band Unit BBU, each RF remote unit RRU can also be also saved at the same time.The application is preferably as follows
Realize configuration parameter acquisition, which by taking foregoing second of annular networking situation as an example (referring to Fig. 2 b), referring to Fig. 4 a, 4b,
4c, wherein Fig. 4 a one of for latency measurement signaling diagram, Fig. 4 b be latency measurement signaling diagram two, Fig. 4 c be relevant parameter configure with
Cell establishes process signaling diagram：
(1) the eNodeB OAM modules control BPU0 on CCU closes optical port IR1, control BPU2 opens IR1 and receives access
RRU1~RRU4, each RRU retain the configuration parameter of access BPU2；
(2) eNodeB OAM modules notice RRU is accessed from another direction and is resetted RRU, while controls BPU2 to close
Optical port IR1, control BPU0 open RRU1~RRU4 that IR1 receives access, and each RRU retains the configuration parameter of access BPU0.
In actual application, in order to which the initial configuration with user is adapted, both direction access is obtained in each RRU
After the parameter of BPU, start to work according to the initial configuration of user.Such as if user configuration into RRU1 under normal condition~
RRU4 accesses BBU from BPU2, then needs eNodeB OAM modules control BPU0 to close optical port IR1, control BPU2 openings IR1 to receive
RRU1~RRU4 of access, opens the optical port IR1 of BPU0 again after each RRU is worked normally.
Referring to Fig. 5, the figure shows another of the fault self-recovery method of the annular networking base station system of the application offer
The flow of embodiment, the flow include：
Step S51：Obtained during the optical port for obtaining the access Base Band Unit of the RF remote unit RRU on annular networking BBU
Configure parameter；
Step S52：When the loop on detecting annular networking breaks down, the negative side of the service route on the loop
The first Base Band Unit BBU is notified upwardly through the first control word, and the pros of the service route on the loop are upwardly through second
Control word notifies each RF remote unit RRU and the second Base Band Unit BBU；
Step S53：Judge preset Self healing Strategy type；If type is rapidly self-healing, step S54 is performed；If
Type is self-healing at a slow speed, then performs step S55；
Step S54：After the first control word is received, base is carried out to the first Base Band Unit BBU according to the configuration parameter
Band data exchange relation reconfigures；After the second control word is received, according to the configuration parameter to trouble point in traffic direction
Following each RF remote unit RRU carries out the link switchover in up and down direction and establishes the second Base Band Unit BBU to business
The link between each RF remote unit RRU on direction below trouble point.
Step S55:After the first control word is received, base is carried out to the first Base Band Unit BBU according to the configuration parameter
Band data exchange relation reconfigures, and deletes the cell established on each RF remote unit RRU in traffic direction below trouble point；
After the second control word is received, each RF remote unit RRU below trouble point in traffic direction is attempted to establish operation dimension
Passage is protected, and the cell on each RF remote unit RRU is rebuild according to the result for establishing OM channel；According to institute
Configuration parameter is stated to reconfigure the second Base Band Unit BBU progress base band data relation.
In step S55, each RF remote unit RRU below trouble point in traffic direction is attempted to establish Operation and Maintenance
Passage can specifically be realized as follows：
Judge whether each RF remote unit RRU in traffic direction below trouble point has configuration parameter；
If so, then attempt to establish OM channel according to the configuration parameter, untill heartbeat is lost；If
It is no, then reattempted to after heartbeat loss and establish OM channel.
In actual application, in order to ensure that OM channel is successfully established, it may be necessary in turn in RF remote
(input port and delivery outlet, also known as main light port and backup optical port, main light port are that loop configures when normal to two mouths of unit R RU
First line of a couplet BBU optical ports, backup optical port is cascades the optical port of next stage RRU when loop is normal) on attempt access Base Band Unit
BBU, untill success.
In step S55, the cell on each RF remote unit RRU is carried out according to the result for establishing OM channel
Reconstruction can specifically be realized as follows：
If establishing the result of OM channel to be successfully established, cell is re-established；
It is each below trouble point on latency services direction if the result for establishing OM channel is not set up success
RF remote unit RRU resets accesses the second Base Band Unit BBU again.
In order to illustrate more clearly of the technical solution of the application, explained in detail by taking a specific example as an example again below
Release.The example is by taking the annular networking in Fig. 2 as an example, i.e., mutual including four RF remote unit RRU, four RF remote units
Cascade, wherein the one end not cascaded is connected to a Base Band Unit BBU, the other end not cascaded is connected to a Base Band Unit
BBU, assume in this example that link of the loop fault point between RRU2 and RRU3 disconnects, then the self-healing of complete annular networking
Journey can include：
(1) loop fault is quickly detected by the cooperation of RRU and BBU.In actual application, loop event is detected
Also need to be reported to OMC in a manner of alarm in time after barrier.
(2) RRU makes decisions processing to loop fault information.
RRU in chain rupture state and support annular networking：It is if there is backup IR interface configuration parameters, then automatic to use
Backup parameter on another direction of loop (corresponding IR interfaces are defined as backup optical port) is attempted to establish Operation and Maintenance and lead to
Road, until position is lost in heartbeat；If there is no the IR interface configuration parameters of backup, heartbeat is resetted automatically in backup optical after losing
Mouth is attempted to re-establish OM channel.
(3) the BPU veneers of BBU make decisions processing to loop fault information.
BPU (may be that identical BPU baseband boards may also be different baseband boards) on annular networking both ends is detected
After RRU loop fault message, different actions is performed according to configuration RRU loop Self healing Strategy：
, will be at once intelligently between re-matching BBU and RRU if RRU loop Self healing Strategy type configuration is rapidly self-healing
Data exchange relation, BPU in the positive direction of loop traffic direction rebuild IR links between failure RRU3, RRU4.
If RRU loop Self healing Strategy type configuration is self-healing at a slow speed, the BPU in the positive direction of loop traffic direction
Rebuild the IR links between failure RRU3, RRU4.
After above-mentioned work is completed, BPU reports RRU loop indicating fault at the eNodeB OAM self-healings on CCU
Module is managed, BPU veneer signs, the type of self-healing processing, the knot of self-healing processing to carry out self-healing treatment is illustrated in indicating fault
Fruit, so as to the good integrated judgment of eNodeB OAM self-healings processing modules and carries out subsequent treatment.
(4) the eNodeB OAM self-healings processing module on CCU veneers carries out RRU loop self-healing processing.
(4.1) if BPU rapidly self-healing and has handled success, eNodeB OAM self-healings processing module is only with the side of event
Formula reports OMC to remind user, otherwise carries out follow-up determination processing；
(4.2) if RRU loop is located in same BBU, and the Operation and Maintenance path of failure RRU has been successfully established,
ENodeB OAM self-healing processing modules notifying cell management module deletes the cell established on failure RRU and rebuilds cell, place
Manage successfully eNodeB OAM self-healings processing module and OMC is only reported in a manner of event to remind user, otherwise disconnect failure RRU
Operation and maintenance link, attempt reset failure RRU, carry out follow-up determination processing；
(4.3) if RRU loop is located in same BBU, and (BBU does not lead to the Operation and Maintenance path of failure RRU for foundation
Cross the heartbeat message detection between RRU on Operation and maintenance link), eNodeBOAM OAM self-healing processing modules notifying cell pipe
Reason module, which deletes, establishes cell on failure RRU, on the BPU veneers on another direction of former RRU loop, wait therefore
The reset of barrier RRU accesses again；Otherwise：
(4.4) if RRU loop is located at different BBU, eNodeB OAM self-healing processing modules notifying cell management module
The cell established on failure RRU is deleted, while reports RRU loop indicating fault to illustrate to carry out certainly in indicating fault to OMC
More the BBU marks that handle, BPU veneer signs, the type of self-healing processing, self-healing processing as a result, so as to OMC integrated judgments and into
Row subsequent treatment.
(5) OMC carries out RRU loop self-healing processing
Corresponding business processing BBU recovery operation maintenance links on failure RRU after OMC notices failure RRU breaks down
With reconstruction cell.
The above describes the fault self-recovery method of the annular networking base station system of the application in detail, correspondingly,
Present invention also provides a kind of embodiment of the fault self-recovery device of annular networking base station system.Referring to Fig. 6, the figure shows this
The structure diagram of device embodiment.The device is suitable for the base station system of distributed base station composition, the annular networking base station system
Unite includes for foregoing base station system, the device：Parameter acquiring unit U61, malfunction notification unit U62, tactful judging unit U63
And fault self-recovery unit U64, wherein：
Parameter acquiring unit U61, for obtaining the access Base Band Unit of the RF remote unit RRU on annular networking BBU's
The configuration parameter obtained during optical port；
Malfunction notification unit U62, on detecting annular networking loop break down when, the industry on the loop
Business flow direction notifies the first Base Band Unit BBU, the pros of the service route on the loop by the first control word in the reverse direction
Each RF remote unit RRU and the second Base Band Unit BBU are notified upwardly through the second control word；
Tactful judging unit U63, for judging preset Self healing Strategy type, the Self healing Strategy type is included quickly certainly
More and self-healing at a slow speed；
Fault self-recovery unit U64, for being controlled according to preset corresponding Self healing Strategy according to the configuration parameter and first
Word processed and/or the second control word carry out link switchover or link re-establishment to each RF remote unit RRU, to each RF remote unit
Cell on RRU delete/rebuild, and carrying out base band data to the first Base Band Unit BBU, the second Base Band Unit BBU exchanges pass
System reconfigures, to realize fault self-recovery.
The course of work of above device embodiment is：The radio frequency first obtained by parameter acquiring unit U61 on annular networking is remote
End unit RRU accesses the configuration parameter obtained during the optical port of Base Band Unit BBU, and then malfunction notification unit U62 is detecting ring
When loop in shape networking breaks down, service route on the loop notifies first by the first control word in the reverse direction
Base Band Unit BBU, the pros of the service route on the loop notify each RF remote unit RRU upwardly through the second control word
With the second Base Band Unit BBU, tactful judging unit U63 judges preset Self healing Strategy type, and triggers fault self-recovery unit
U64, by the unit according to preset corresponding Self healing Strategy according to the configuration parameter and the first control word and/or the second control
Word carries out link switchover or link re-establishment to each RF remote unit RRU, and the cell on each RF remote unit RRU is deleted
Except/rebuild, carrying out base band data commutative relation to the first Base Band Unit BBU, the second Base Band Unit BBU reconfigures, to realize event
Hinder self-healing.The device embodiment can equally obtain the technique effect of the application preceding method embodiment, to avoid repeating, here
It is not repeated.
It should be noted that：For the simplicity of narration, above-described embodiment of this specification and the various modifications of embodiment
What implementation stressed is all the difference with other embodiment or mode of texturing, identical similar between each situation
Part mutually referring to.For several improved procedures of device embodiment, since it is substantially similar to method reality
Example is applied, so describing fairly simple, the relevent part can refer to the partial explaination of embodiments of method.Device described above
The each unit of embodiment may or may not be physically separate, can both be located at a place, or can also
It is distributed under multiple network environments.In actual application, part therein or complete can be selected according to the actual needs
Portion's unit realizes the purpose of this embodiment scheme, those of ordinary skill in the art without creative efforts,
It can understand and implement.
The above is only the embodiment of the application, it is noted that for the ordinary skill people of the art
For member, on the premise of the application principle is not departed from, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as the protection domain of the application.
Claims (7)
- A kind of 1. fault self-recovery method of annular networking base station system, it is characterised in that the method is suitable for distributed base station The base station system of composition, the annular networking base station system include：At least one base station, the base station include N number of annular member The upper level network element of equipment and at least one annular member device, N number of annular member device mutually cascade, mutually cascade Annular member device in one end for not cascading be connected to the first optical port, the other end not cascaded is connected to the second optical port, described First optical port and the second optical port are located on the different baseband boards in the same upper level network element or the base of different upper level network elements On band plate, the N is the natural number more than or equal to 1, and this method includes：Obtain the configuration parameter that the RF remote unit RRU on annular networking is obtained when accessing the optical port of Base Band Unit BBU；When the loop on detecting annular networking breaks down, traffic direction on the loop passes through first in the reverse direction Control word notifies the first Base Band Unit BBU, and the square of the traffic direction on the loop notifies respectively upwardly through the second control word RF remote unit RRU and the second Base Band Unit BBU；Judge preset Self healing Strategy type, the Self healing Strategy type includes rapidly self-healing and self-healing at a slow speed；According to preset corresponding Self healing Strategy according to the configuration parameter and the first control word and/or the second control word to respectively penetrating Frequency far-end unit RRU carries out link switchover or link re-establishment, and the cell on each RF remote unit RRU delete/rebuild, Base band data commutative relation is carried out to the first Base Band Unit BBU, the second Base Band Unit BBU to reconfigure, to realize fault self-recovery；Wherein, when the preset Self healing Strategy type is rapidly self-healing strategy,After the first control word is received, base band data is carried out to the first Base Band Unit BBU according to the configuration parameter and exchanges pass System reconfigures；After the second control word is received, according to the configuration parameter to each RF remote list below trouble point in traffic direction First RRU carries out the link switchover in up and down direction and establishes the second Base Band Unit BBU to below trouble point in traffic direction Link between each RF remote unit RRU；When the preset Self healing Strategy type is Self healing Strategy at a slow speed,After the first control word is received, base band data is carried out to the first Base Band Unit BBU according to the configuration parameter and exchanges pass System reconfigures, and deletes the cell established on each RF remote unit RRU in traffic direction below trouble point；After the second control word is received, each RF remote unit RRU below trouble point in traffic direction is attempted to establish behaviour Make maintenance channel, and the cell on each RF remote unit RRU is rebuild according to the result for establishing OM channel；Root Base band data relation is carried out according to the configuration parameter to the second Base Band Unit BBU to reconfigure.
- 2. fault self-recovery method according to claim 1, it is characterised in that when the preset Self healing Strategy type is fast During fast Self healing Strategy, after the first control word is received, first on the first Base Band Unit BBU is notified by way of hard break Baseband processing unit BPU, the first baseband processing unit BPU complete base band in interrupt processing function using the configuration parameter Data exchange reconfigures；After the second control word is received, the second Base-Band Processing on the second Base Band Unit BBU is notified by way of hard break Unit B PU, the second baseband processing unit BPU establish Base Band Unit BBU in interrupt processing function using the configuration parameter The link between each RF remote unit RRU on to traffic direction below trouble point.
- 3. fault self-recovery method according to claim 1, it is characterised in that it is described to trouble point in traffic direction below Each RF remote unit RRU trials are established OM channel and are specifically included：Judge whether each RF remote unit RRU in traffic direction below trouble point has configuration parameter；If so, then attempt to establish OM channel according to the configuration parameter, untill heartbeat is lost；If it is not, then Reattempted to after heartbeat loss and establish OM channel.
- 4. fault self-recovery method according to claim 1, it is characterised in that described according to the knot for establishing OM channel Fruit carries out reconstruction to the cell on each RF remote unit RRU and specifically includes：If establishing the result of OM channel to be successfully established, cell is re-established；If the result for establishing OM channel is not set up success, each radio frequency on latency services direction below trouble point Far-end unit RRU resets accesses the second Base Band Unit BBU again.
- 5. the method according to any one of Claims 1-4, it is characterised in that described to obtain penetrating on annular networking The configuration parameter obtained during the optical port of frequency far-end unit RRU access Base Band Unit BBU specifically includes：The first optical port on the baseband board of Base Band Unit BBU is controlled to close, the second optical port of control, which is opened and received, initiates what is accessed RF remote unit RRU, retains the configuration parameter of Base Band Unit of the access with the first optical port；The second optical port on the baseband board of Base Band Unit BBU is controlled to close, the first optical port of control, which is opened and received, initiates what is accessed RF remote unit RRU, retains the configuration parameter of Base Band Unit BBU of the access with the second optical port.
- 6. according to the method described in claim 5, it is characterized in that, first control word is in multiplexing CPRI specification Z.80.0 control word, first control word include the flag bit for being used for label detection to link failure；Second control word is Z.144.0, which includes the flag bit for being used for label detection to link failure to multiplexing fiber-optic switching control word.
- 7. a kind of fault self-recovery device of annular networking base station system, it is characterised in that described device is suitable for distributed base station The base station system of composition, the annular networking base station system include：At least one base station, the base station include N number of annular member The upper level network element of equipment and at least one annular member device, N number of annular member device mutually cascade, mutually cascade Annular member device in one end for not cascading be connected to the first optical port, the other end not cascaded is connected to the second optical port, described First optical port and the second optical port are located on the different baseband boards in the same upper level network element or the base of different upper level network elements On band plate, the N is the natural number more than or equal to 1, which includes：Parameter acquiring unit, malfunction notification unit, strategy judge Unit and fault self-recovery unit, wherein：The parameter acquiring unit, for obtaining light of the RF remote unit RRU on annular networking in access Base Band Unit BBU The configuration parameter obtained during mouth；The malfunction notification unit, on detecting annular networking loop break down when, the business on the loop Direction notifies the first Base Band Unit BBU, the positive direction of the traffic direction on the loop by the first control word in the reverse direction It is upper that each RF remote unit RRU and the second Base Band Unit BBU are notified by the second control word；The strategy judging unit, for judging preset Self healing Strategy type, the Self healing Strategy type includes rapidly self-healing Self-healing at a slow speed；The fault self-recovery unit, for configuring parameter and the first control word according to described according to preset corresponding Self healing Strategy And/or second control word link switchover or link re-establishment are carried out to each RF remote unit RRU, to each RF remote unit RRU On cell deleted or rebuild, to the first Base Band Unit BBU, the second Base Band Unit BBU carry out base band data commutative relation Reconfigure, to realize fault self-recovery；Wherein, when the preset Self healing Strategy type is rapidly self-healing strategy,The fault self-recovery unit is specifically used for, after the first control word is received, according to the configuration parameter to the first base band Unit B BU carries out base band data commutative relation and reconfigures；After the second control word is received, according to the configuration parameter to each RF remote list below trouble point in traffic direction First RRU carries out the link switchover in up and down direction and establishes the second Base Band Unit BBU to below trouble point in traffic direction Link between each RF remote unit RRU；When the preset Self healing Strategy type is Self healing Strategy at a slow speed,The fault self-recovery unit is specifically used for, after the first control word is received, according to the configuration parameter to the first base band Unit B BU carries out base band data commutative relation and reconfigures, and deletes each RF remote unit RRU below trouble point in traffic direction The cell of upper foundation；After the second control word is received, each RF remote unit RRU below trouble point in traffic direction is attempted to establish behaviour Make maintenance channel, and the cell on each RF remote unit RRU is rebuild according to the result for establishing OM channel；Root Base band data relation is carried out according to the configuration parameter to the second Base Band Unit BBU to reconfigure.
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| CN107733522B (en) * | 2017-10-19 | 2020-12-15 | 北京全路通信信号研究设计院集团有限公司 | LTE-R annular network system |
| CN107948948B (en) * | 2017-11-07 | 2020-12-22 | 北京全路通信信号研究设计院集团有限公司 | LTE-R distributed network system |
| CN108768507B (en) * | 2018-06-01 | 2020-06-05 | 武汉虹信通信技术有限责任公司 | Link switching method and system for RRU (radio remote unit) ring network |
| CN111683383B (en) * | 2020-06-08 | 2023-03-24 | 太仓市同维电子有限公司 | Intelligent controller and multi-cell load balancing method of distributed indoor division 5G system |
| CN112714450B (en) * | 2021-03-26 | 2021-07-02 | 新华三技术有限公司 | Method for networking pico-cell base station and method and device for managing network bandwidth |
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| CN101771591A (en) * | 2008-12-26 | 2010-07-07 | 大唐移动通信设备有限公司 | Service transmission method and system under RRU and BBU loop network |
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