CN101056445A - Backup and recovery method for NBAP resource of NodeB - Google Patents

Abstract

The invention relates to a backup method and a recovery method of an NBAP resource of an NodeB, wherein the NodeB includes an SCM and a BBU. The backup method comprises following steps: a step 1 in which an SCM mainboard receives a resource configuration request message sent from a RNC, and sends an NodeB inner configuration request message to the BBU effected by current NBAP; a step 2 in which the BBU receives the NodeB inner configuration request message, completes configuration towards a base band unit, and returns a response message for successful configuration to the SCM mainboard; a step 3 in which the SCM mainboard receives the response message of the successful configuration in the BBU, then configures the NBAP resource on the SCM mainboard, sends the resource to be copied to a SCM spare board; a step 4 in which the SCM spare board modifies corresponding resource based on the copied resource. With the method of the invention, reliability of the resource during the NBAP process is ensured.

Description

Backup and the restoration methods of the NBAP resource of NodeB

Technical field

The present invention relates to backup and the restoration methods of the NBAP resource of NodeB, particularly in NodeB, can be so that rapid data backup and the restoration methods that the data of the upper storage of SCM and a plurality of BBU are consistent.

Background technology

NBAP (NodeB Application Part) agreement belongs to Iub interface wireless network control plane, in NodeB (base station), be in SCM (system control and management unit, System Control Management), to realize the management of wireless network resource.

Because the NBAP resource on the SCM is extremely important, and usually be positioned on the hardware (below be referred to as the SCM plate), in case therefore hardware occurs unusually, will directly cause the NodeB product to be in and to use state. Therefore, usually the NodeB product can be taked to this part resource the processing mode of Hot Spare, adopt the active and standby plate structure wireless network resource of backing up in realtime, occur in the unusual situation at mainboard, by the software handling process slave board is upgraded to mainboard, be the masterslave switchover on the ordinary meaning, reach the purpose that the NodeB product continues use. Warm standby function has become a competitive characteristic of NodeB product, is widely adopted.

Existing implementation is at identical NBAP software and the Hot Spare driver module of active and standby plate operation, the resource that NBAP need to dispose is made independently data resource table, when each NBAP process is finished, after mainboard has been finished configuration to the NBAP resource, the resource that has influence on is packaged into message by pre-designed message structure, send to slave board by the Hot Spare driver module, after slave board is received backup messages, according to message content resource is configured.

But there are the following problems for above-mentioned implementation.

1. data volume is large, and efficient is low.

Designed capacity requirement according to NodeB, when the number of users of the contained fan number of supporting and the support of every contained fan is more, if be placed on the design of SCM plate in the resource set of employing NBAP, resource will take a large amount of internal memories, and whole signalings of NBAP, all need to do a large amount of processing at the SCM plate, affect the efficient of whole system; The NBAP resource all needs to backup, and backup is increased the pressure of Hot Spare driver module.

2. unusual generation easily causes internal resource inconsistent.

According to the whole NodeB NBAP of SCM unified management resource, each baseband processing unit (BaseBand Unit, abbreviation BBU) hardware design structure of the user data of the one or more carrier waves of processing, each NBAP process is from receiving RNC (Radio Network Controller, radio network controller) message of request application Radio Resource (such as, the residential quarter is set up the process request and is set up a residential quarter at NodeB, need to be in NodeB with the parameter of residential quarter such as frequency, time slot, code channel etc. data, NodeB is configured according to these message), configuration successful is (after NBAP receives message, require the content of configuration in the software subsystem configuration RNC message in other NodeB of its control), backup is accomplished to and returns the RNC response message and need certain processing time, in the NBAP message processing procedure, as it is unusual that the SCM mainboard occurs, and then might cause the inconsistent situation of the NBAP resource of storing on BBU and the existing SCM slave board to occur.

This is that on the other hand, because stock number is larger, the time that backup needs is longer, causes the inconsistent possibility increase of resource when also making to a great extent unusual generations because that structure is brought between the inner SCM of employing and BBU plate is inevitably unusual on the one hand.

3. it is inconsistent to switch the rear RNC resource that easily causes.

Because masterslave switchover process itself also will have certain processing time, the original scheme of the message of RNC is generally all done discard processing in during this period of time, NBAP process for the RNC initiation, RNC can not receive the response of NodeB, if the process that before switching, exists ongoing NodeB to initiate, as blocking, reset etc., the response message that abandons RNC during switching then can cause the NBAP resource of NodeB and RNC storage inconsistent.

Summary of the invention

Large for solving existing scheme data volume, efficient is low, abnormal conditions easily cause NodeB internal resource inconsistent and RNC and the inconsistent shortcoming of NodeB resource, and the present invention proposes the restoration methods of the NBAP resource of the backup method of NBAP resource of a kind of NodeB and NodeB.

To achieve these goals, one aspect of the present invention provides the backup method of the NBAP resource of a kind of NodeB, NodeB comprises the control and management cell S CM of system and baseband processing unit BBU, wherein SCM is used for storage to the necessary resource of each BBU distribution NodeB inner configuration request message, BBU is used for resource and the required resource of Base-Band Processing of the upper storage of storage SCM, and the method comprising the steps of:

Step 1, SCM mainboard receive the resource allocation request message that RNC sends, and the BBU that has influence on to this NBAP sends the NodeB inner configuration request message;

Step 2, BBU receives the NodeB inner configuration request message, finishes the configuration to Base Band Unit, returns the configuration successful response message to the SCM mainboard;

Step 3, SCM mainboard receive BBU internal configurations success response message, then dispose the NBAP resource on the SCM mainboard, and the resource that will back up sends to the SCM slave board;

Step 4, the SCM slave board is according to the corresponding resource of resource modifying of backup.

The present invention provides the restoration methods of the NBAP resource of a kind of NodeB on the other hand, wherein, NodeB comprises SCM and BBU, SCM is used for storage to the necessary resource of each BBU distribution NodeB inner configuration request message, and BBU is used for resource and the required resource of Base-Band Processing of the upper storage of storage SCM. The method comprising the steps of:

Step 1, Operation and Maintenance Unit OM detects SCM mainboard abnormal, triggers switching notification message to former SCM slave board, notifies former SCM slave board to switch;

Step 2, former SCM slave board upgrades to new SCM mainboard, starts resource recovery process timer, and the sign reversed process is carried out;

Step 3, new SCM mainboard sends the resource recovery request message to BBU working properly;

Step 4 if new SCM mainboard received the resource recovery response message that all normal operation sub-processors send before timer expiry, then enters step 5; If new SCM mainboard timer expiry before not receiving all resource recovery response messages is not then revised the NBAP resource on the new SCM mainboard, revise to switch being designated Ready, the sign reversed process is finished;

Step 5, the resource recovery response message that new SCM mainboard basis is received disposes the resource on the new SCM mainboard, and abort timer identifies new SCM mainboard reversed process and finishes.

In above-mentioned restoration methods, can also comprise after the step 5 that step: NodeB sends the verification request message to RNC; Perhaps, SCM judges whether the type of message that receives is RNC resource allocation request message or OM resource distribution message, if so, and with message buffering.

Compared with prior art, backup method and the restoration methods of the NBAP resource by NodeB of the present invention, as far as possible comprehensively fast data backup, and behind masterslave switchover, carry out data and recover, integrality and the uniformity of NBAP resource as much as possible guaranteed.

Description of drawings

Figure 1 shows that distributed system schematic diagram of the present invention;

Fig. 2 (a) is depicted as the NBAP handling process of system according to the present invention on SCM;

Fig. 2 (a ') is depicted as the handling process of map interlinking 2 (a);

Fig. 2 (b) is depicted as the NBAP handling process of system according to the present invention on BBU;

Figure 3 shows that the overall situation backup flow graph of the system of Fig. 1;

Fig. 4 (a) is depicted as the data increment backup flow graph that RNC initiates in the system of Fig. 1;

Fig. 4 (b) is depicted as the data increment backup flow graph that OM initiates in the system of Fig. 1;

Figure 5 shows that active and standby plate of the present invention switches flow process;

Fig. 6 (a) is depicted as the flow process of rear resource recovery on the SCM plate of switching of the present invention.

Fig. 6 (b) is depicted as the flow process of rear resource recovery on the BBU plate of switching of the present invention.

The specific embodiment

According to NodeB distributed storage architecture of the present invention, be to make the NBAP resource distribution on each BBU, relate to the resource of many BBU and message is distributed necessary resource to each BBU and only retain part on the SCM.

In said structure, utilize message to the resource of necessity of each BBU distribution, and resource and the required resource (this part resource and backup, message distribution have nothing to do, and can not store at SCM) of configuration base-band software of the upper storage of SCM is stored on each BBU. For example, in wireless link and reprovision process, SCM stored the Radio Link place residential quarter, frequency, NBCC, Radio Link ID, measure the information such as ID, and the out of Memory relevant with Radio Link then utilizes SCM to be assigned to the upper storage of each BBU in the message between different boards of each BBU such as CCTrCH information, DCH information, DPCH information, metrical information etc. Like this when the Base-Band Processing process is carried out, residential quarter, frequency, NBCC, the Radio Link ID by storing at SCM, measure the information such as ID and judge and search for, just can know this process should by which BBU realization.

The resource of the storage of the upper storage of SCM comprises: the external index that LocalCell (Cell), UARFCN, BBU, NBCC, RL, public Measurement, each resource items of special-purpose Measurement provide is as shown in the table:

Resource items	External index
		LocalCell(Cell)	Corresponding a plurality of UARFCN index

UARFCN	Corresponding BBU index, corresponding LocalCell index
		BBU	Corresponding UARFCN index
NBCC	The index of corresponding RL
		RL	Corresponding UARFCN index, corresponding synchronous reprovision is prepared target UARFCN index, corresponding NBCC index
Special-purpose Measurement	/
		Public Measurement	/

Resource on the BBU comprises: Cell, Common transport channel (PCH, FACH, RACH), public physic channel (PCCPCH, DwPCH, SCCPCH, PICH, PRACH, FPACH), SCCPCH CCTrCH, TS (RU), RL, DCH, DPCH, UL CCTrCH, DL CCTrCH, UARFCN, public Measurement, special-purpose Measurement, BindingID (Connection), for each resource its Resource Properties item is arranged, do not list one by one in the following table. The subordinate relation of each resource items and the external index that provides are as shown in the table:

Resource items	Child resource	Child resource	External index
				Cell	DwPCH	/	/
PCCPCH	/	/
			SCCPCH CCTrCH		/	Corresponding PCH index, corresponding a plurality of FACH index, corresponding a plurality of SCCPCH index
SCCPCH	/	Corresponding SCCPCH CCTrCH index
			FACH		/	Corresponding SCCPCH CCTrCH index
PCH	PICH	Corresponding SCCPCH CCTrCH index
			RACH		/	Corresponding a plurality of PRACH index, corresponding FPACH index
PRACH	/	Corresponding RACH index
			FPACH		/	Corresponding RACH index

UARFCN	TS	RU	/
				RL	/	/
	UL CCTrCH	/	Corresponding a plurality of DPCH index
				DL CCTrCH	/	Corresponding a plurality of DPCH index
	DCH	/	/
				DPCH	/	/
	Public Measurement	/	/
				Special-purpose Measurement	/	/	/
BindingID   (Connection)	/	/	/

Below with reference to NodeB and the NBAP resource distribution situation thereof of Fig. 1 detailed description according to distributed frame of the present invention.

As shown in the figure, comprise respectively message processing module, resource memory module, information receiving and transmitting module and communication between plates driver module among SCM mainboard and each BBU. Wherein, the SCM slave board is for the data backup of being undertaken by the Hot Spare driver module on the SCM mainboard.

Each information receiving and transmitting module is responsible for finishing reception and the transmission of SCM or the needed message of each BBU, and concrete message should send to and where obtain by the query resource memory module.

Message processing module is processed the message that should process among each SCM or each BBU, because the information in the message is also relevant with the destination address of information receiving and transmitting, therefore, message processing module will be finished the configuration to the resource memory module;

The resource memory module is finished the storage of the corresponding relation of NBAP resource to be processed and device hardware resource;

The communication between plates driver module is used for finishing the communication between SCM and the BBU hardware cell.

For the NBAP of SCM and BBU, the difference of modules is that the rank of processing is different. SCM processes the resource in the whole NodeB scope, and is accomplished to distribution and the processing of BBU level. BBU processes the resource in the BBU scope, and the resource of finishing in BBU is distributed and processing.

The NBAP resource of describing the needs backup of storing at SCM in the table 1 in detail and being used for distributing to each BBU. Other resource of NBAP is such as numerous resources such as TS, Code, DCH, DPCH, UL CCTrCH, DL CCTrCH, owing to do not relate to BBU and distributing, therefore these resources are stored on the BBU, like this when the SCM mainboard breaks down, as long as the SCM slave board is still preserved to the required NBAP resource of BBU distribution, the NodeB system just can work.

NBAP resource of the present invention adopts above-mentioned distributed schemes, makes resource distribution on each BBU, relates to the resource of many BBU and message is distributed necessary resource to each BBU and only retain part on the SCM. The major part of each process is processed and will be distributed on each BBU, takes full advantage of the disposal ability of each BBU, improves treatment effeciency; Greatly alleviate the processing pressure of SCM plate; The complex process of the data of having avoided a large amount of backup and not yet having backed up when switching improves the stability of a system.

When certain BBU breaks down (resetting), only lose all resource informations of this BBU board memory storage, and these information exchanges are crossed troubleshooting process, can recover.

Table 1

Resource name	Attribute	Explanation	Relate to process
				LocalCell(Ce   ll)	LocalCell ID	By OM (Operation and Maintenance Unit Operation and Maintenance) configuration, inconsistent with the LocalCell index	Cell Setup
The LocalCell existence	By the OM configuration, whether sign is indicated interpolation or has been deleted this LocalCell by resource status	1ResourceStatusIndication 2Audit 3Cell Setup judges
			N corresponding UARFCN index		The index of the UARFCN that this LocalCell is corresponding	All need to inquire about the process of frequency
Seizure condition	Identify and not yet, or set up Cell on this LocalCell	All need to inquire about the process of Cell
			C_ID		The Cell ID that has set up on this LocalCell	All need to inquire about the process of Cell

	Operational State	The Cell mode of operation of having set up on this LocalCell	1ResourceStatusIndication 2Audit for the Cell of Enabled, inquires about the common channel information on its main carrier frequency BBU, and the Cell of Disabled does not inquire about. 3Cell Setup, Cell Delete change this state 4 all need to inquire about whether available process of this Cell, for the Cell of Disabled, no longer to the BBU dispatch messages.
				Availability Status	The Cell upstate of having set up on this LocalCell	1ResourceStatusIndication 2Audit 3Cell Delete is set to empty.
	Configuration  Generation ID	Owing to be the M item in verification, can not exist on the BBU, otherwise can't find this value for Disabled Cell	1Cell Setup/Recfg   2CTCH Setup/Recfg/Del   3Audit
				Blocking State	Blocked state during this Cell is in and does not block, blocks or	All need to inquire about the process whether this Cell blocks
	DL or Global  Capacity Credit	By the OM configuration, verify the item into M, can not exist on the BBU, otherwise can't find this value for Disabled Cell, lower same	1ResourceStatusIndication 2Audit 3 all processes that relate to physical channel increase and decrease reprovision all need to after the process success, should be worth change
				Common Channels  Capacity  Consumption Law	Disposed by OM	1ResourceStatusIndication   2Audit
	Dedicated Channels  Capacity  Consumption law	Disposed by OM	1ResourceStatusIndication   2Audit
				Maximum DL  Power Capability	By the OM configuration, verify the item into O, but it is the attribute of LocalCell, lower same	1ResourceStatusIndication   2Audit
	Minimum  Spreading Factor	Disposed by OM	1ResourceStatusIndication 2Audit 3 sets up the procedure inspection SF of physical channel
				Minimum DL  Power Capability	Disposed by OM	1ResourceStatusIndication   2Audit
	Reference Clock  Availability	Disposed by OM	1ResourceStatusIndication   2Audit

UARFCN	The UARFCN existence	By the OM configuration, whether sign is indicated interpolation or has been deleted this LocalCell by resource status	1ResourceStatusIndication 2Audit 3Cell Setup judges
				Major-minor sign	This frequency is dominant frequency point or auxiliary frequency, is disposed by OM	Public procedure
	Corresponding BBU index	This UARFCN corresponding the BBU index	All need to inquire about the process of the corresponding BBU of frequency
				Operational State	This frequency mode of operation is relevant with the state of main carrier frequency BBU.	All need to inquire about whether available process of this frequency, for the frequency of Disabled, no longer to the BBU dispatch messages.
	Availability Status	This frequency upstate	1ResourceStatusIndication 2Audit 3Cell Delete is set to empty.
				NBCC	NBCC ID		RL distributes during Setup
CRNC CC ID	Be used for dedicated process group response message	Dispose 2 dedicated process response messages during 1RL Setup
			Seizure condition		Identify this NBCC not yet,, set up	Setting up or delete user's process revises
The RL index of setting up under the NBCC	Be initialized as invalid value	RL Setup/RL Add/RL Del/   Cell Del/Block/Reset
			Synchronized reconfiguration SBR sign		Retraining some process can not carry out	The process Rl del that can not carry out when being in synchronous SBR
Corresponding CCP index	Be used for CCP corresponding to this NBCC of inquiry	Distribute 2 to be used for dedicated process inquiry SAAL ID during 1RLSetup
			RL		Seizure condition	Corresponding RL state	RL Setup/RL Add/RL Del/   Cell Del/Block/Reset
RL ID	The BBU that is used for certain bar link place of inquiry NBCC	RL Setup/RL Add/ need to be according to the process of RL ID to the BBU dispatch messages
				Special-purpose Measurement ID, state	Be used for searching the BBU that measures the place in the measurement termination procedure	Special measurement initializes, special measurement stops
The index of corresponding NBCC	Be initialized as invalid value	RL Setup/RL Add/RL Del/   Cell Del/Block/Reset

Describe multicomputer system and NBAP resource distribution situation thereof according to distributed frame of the present invention in detail below by the NBAP flow process of Fig. 2.

Fig. 2 (a) has illustrated the processing procedure of NBAP process on SCM to Fig. 2 (a ').

Step 1:SCM receives NBAP message, carries out validity judgement, does not pass through as judging, returns failure response to the OM alarm and to RNC, as passes through, and carry out step 2.

Step 2: after the message validity judgement success and the NBAP resource of managing among the SCM carry out resource bid, judge this NBAP message whether with the resource consistence of NodeB storage, as apply for failure, return failure response to the OM alarm and to RNC, such as success, the interim state of storage carry out step 3 in resource.

Illustrate: if what receive is wireless link message, then to make a decision with the resources such as CELL, UARFCN of storing among the SCM, this part work is that the resource processing module among the SCM is carried out, if and the parameter in the message meets, then success, in resource, store the state that Radio Link is being set up, and find the BBU at the corresponding UARFCN of this Radio Link place. And if parameter in the message do not meet, such as the situations such as the residential quarter of wireless link does not exist, the failure of application resource.

Step 3: if application resource success, SCM finds BBU in step 2, and can construct NodeB internal resource configuration request message this moment, send to BBU after, enter the timer wait state.

Illustrate: if wireless link message, then with SCM in after the resources such as CELL, UARFCN of storing make a decision, the information (comprising in the RNC message) such as CELL, the UARFCN of this Radio Link, TS, Code, RL, DCH, DPCH, UL CCTrCH, DL CCTrCH are constructed to NodeB internal resource configuration request message, send to BBU.

Step 4: if timer expiry or BBU return failure response, this NBAP message is described in the inner not success of NodeB, SCM will be to the OM alarm, and the interim state of the resource in the recovering step 2, returns failure response to RNC.

If receive the success response of BBU, then can in the SCM resource, write the state after the change of resource, and this change is sent to Hot Spare driver module, SCM slave board receive data by certain form packing, unpack, according to the corresponding resource of data modification of backup.

Illustrate: if wireless link message, receive the success response of BBU after, the state of this Radio Link changed into from set up sets up. The wireless link information packing is sent to the Hot Spare driver module, and the state of this Radio Link also will be changed into and set up in the SCM slave board. Other resources also are similar processing.

Fig. 2 (b) has illustrated the processing procedure of NBAP process on BBU.

After step 1:BBU receives the NodeB internal resource configuration request message of SCM transmission, judge with information such as the TS that stores among the BBU, Code, RL, DCH, DPCH, UL CCTrCH, DL CCTrCH, as judge failure, then return failure response to SCM, such as success, turn to step 2.

Illustrate: if the NodeB internal resource configuration request message of wireless link process, then the NBAP resource of storing among the information such as CELL, the UARFCN of this Radio Link, TS, Code, RL, DCH, DPCH, UL CCTrCH, DL CCTrCH and the BBU is made a decision, this part work is that the resource processing module among the SCM is carried out, if parameter is legal, then success, the state that the storage Radio Link has been set up in resource, and revise the state of the related resource such as CELL, UARFCN, TS, Code, RL, DCH, DPCH, UL CCTrCH, DL CCTrCH of this Radio Link, if parameter is illegal, such as the TS of Radio Link and the time slot state of residential quarter situation, the then failures in resource application such as do not conform to.

Step 2: if the information and sending that disposes to baseband processing unit is then constructed in previous step resource bid success, and return the success response message of NodeB internal resource configuration to SCM.

By finding out as mentioned above, according to distributed frame of the present invention, the NBAP resource distribution is stored on each BBU, so that the part data volume of the needs of storing on SCM mainboard backup reduces greatly, improved and backed up the required time, increase largely the reliability of Backup Data on the standby processor, reduced the possibility that the data processing makes mistakes in the NBAP process.

Data backup process between SCM and the BBU is divided into overall backup procedure and incremental backup process. Overall situation backup procedure is by OM (Operation and Maintenance, Operation and Maintenance Unit) process that the whole resources with on the SCM of initiating back up, incremental backup then are the processes that the part resource that changed for SCM in NodeB NBAP resource distribution process backs up.

Be described in detail in NBAP resource backup method in this distributed frame below in conjunction with accompanying drawing.

Embodiment one

Fig. 3-Figure 4 shows that backup flow process according to the first embodiment under the distributed storage architecture of the present invention.

At first, describe the process of overall situation backup in detail in conjunction with Fig. 3.

Step 1, SCM mainboard receive the resource full backup message that OM sends, and whole resources of storage on it are packed by certain form sends to the Hot Spare driver module;

Step 2, the SCM slave board receives the packet that the Hot Spare driver module sends, and unpacks, and then revises corresponding resource according to Backup Data;

The OM that step 3, SCM slave board full backup are finished backward SCM slave board sends backup success response message.

Below, in conjunction with the be elaborated process of incremental backup of Fig. 3,4.

The incremental backup process is included in the concrete NBAP process, is divided into the NBAP process of RNC initiation and the NBAP process that NodeB initiates.

(1) the NBAP process of RNC initiation is described in detail as follows shown in Fig. 4 (a):

Step 1, the SCM mainboard receives the NBAP resource allocation request message of RNC, obtain sending required information to BBU by the NBAP resource (i.e. the content of table one) of storing among the inquiry SCM, set up process such as the residential quarter, can comprise the residential quarter in the message of RNC, frequency, the information such as time slot, after the NBAP process is processed and is inquired about this message, check in the LocalCell at this place, residential quarter on which BBU, the parameter of just residential quarter that message comprises being set up in this residential quarter sends on this BBU, BBU just can set up the residential quarter after receiving message, also stored like this content of this residential quarter on the SCM, the content of this residential quarter of also storing on the BBU, that still will deposit is more, when the wireless link process begins, which residential quarter SCM just can inquire this Radio Link in, and can find again this and which BBU to have sent configuration messages to, thus structure NodeB internal resource configuration request message;

Step 2, the BBU that the SCM mainboard arrives to this NBAP process influence sends the inner NBAP resource allocation request of NodeB message;

Step 3, if this NBAP process influence arrives a plurality of BBU, the SCM mainboard sends the inner NBAP resource allocation request of NodeB message to a plurality of BBU;

Step 4, BBU finishes the resource distribution to Base Band Unit after receiving NodeB internal resource configuration request message, returns the response of NodeB internal resource configuration successful, as occurring abnormal conditions (such as the failure of configuration Base Band Unit) in this step, return the response of NodeB internal resource configuration failure;

Step 5, if this NBAP process influence arrives a plurality of BBU, then a plurality of BBU take and step 4 same operation;

Step 6, if the SCM mainboard receives all NodeB internal resource configuration successful response messages, then dispose NBAP resource on the SCM mainboard, the NBAP resource that will back up is by certain form, such as the message that sends 8 bytes, front 4 bytes represent cell id, rear 4 bytes represent the residential quarter and have set up, just this residential quarter is set to after the SCM slave board is received and sets up, those skilled in the art can formulate form according to actual conditions, packing sends to the Hot Spare driver module, and the process success forwards step 7 to; If receive failure response, then do not send the backup messages between active and standby plate; If do not receive all success responses, timer expiry does not send backup messages between active and standby plate yet, rear two kinds of situation procedure failures;

Step 7, the SCM slave board receives the packet of Hot Spare driver module, unpacks, and then revises corresponding resource according to Backup Data;

Step 8, whether return successfully or failure response to RNC by success according to step 6 process for the SCM mainboard.

(2) the NBAP process of NodeB initiation is described in detail as follows shown in Fig. 4 (b):

Step 1, SCM mainboard receive the resource allocation request message of OM, by the NBAP resource of storing among the inquiry SCM, the configuration request message that structure sends to RNC;

Step 2, the resource that the SCM mainboard will back up sends to the Hot Spare driver module by certain form packing, and SCM slave board receive data unpacks, according to the corresponding resource of data modification of backup;

Step 3, the SCM mainboard sends configuration request message to RNC;

Step 4, SCM mainboard receive the RNC response, if success response then enters step 5; If failure response then skips to step 9, process according to the part of processing the RNC failure response;

Step 5, the BBU that the SCM mainboard arrives to this NBAP process influence sends NodeB internal resource configuration request message;

Step 6, if this NBAP process influence arrives a plurality of BBU, the SCM mainboard sends NodeB internal resource configuration request message to a plurality of BBU;

Step 7, after BBU receives the NodeB inner configuration request message, finish the configuration to Base Band Unit, return the success response of NodeB internal configurations, as occurring abnormal conditions (such as the failure of configuration Base Band Unit) in this step, return NodeB internal configurations failure response;

Step 8, if this NBAP process influence arrives a plurality of BBU, a plurality of BBU can take and step 7 same operation;

Step 9, if the SCM mainboard receives all NodeB internal configurations success response message, then dispose NBAP resource on the main SCM plate, the resource that will back up sends to the Hot Spare driver module by certain form packing, SCM slave board receive data, unpack, according to the corresponding resource of data modification of backup;

If the SCM mainboard is received the RNC failure response, perhaps receive NodeB internal resource configuration failure response in the RNC success response situation receiving, the configuration concurrency of then cancelling the NBAP resource send backup messages; SCM slave board receive data unpacks, according to the corresponding resource of data modification of backup;

Step 10, the SCM mainboard returns successfully or failure response to OM according to the RNC response message and the NodeB internal configurations response message that receive.

Embodiment two

Figure 5 shows that the second embodiment of the data back up method of distributed storage architecture of the present invention.

Can find out from the incremental backup process, the NBAP process has communication between plates when the NodeB internal operation, can be for some time between response message to returning at the request message of receiving between plate, and the Hot Spare driver module is sent to slave board to resource backup also needs a period of time, although adopt the multicomputer system of Distributed Storage structure greatly to improve the efficient of Hot Spare, but still may appear at certain NBAP resource distribution that has generated on the BBU, and masterslave switchover when occuring the SCM slave board still do not have the situation of corresponding NBAP resource.

For solving this abnormal conditions, when switching generation, after the SCM slave board is received the OM switching notification message, escalate into new SCM mainboard but not immediately startup, but start first a timer, before timer expiry, send a NBAP resource recovery request message to normal each BBU of state, the Organization of Data that is used for the NBAP resource recovery that BBU will store becomes NBAP resource recovery response message to send to new SCM mainboard, and new SCM mainboard upgrades the resource of relevant position according to the NBAP resource recovery response message of the BBU that receives.

Each BBU processes one or more carrier waves, the resource recovery response message comprises Resource Properties (seeing Table), UARFCN attribute, RL number and the attribute of the CELL that this carrier wave is corresponding and corresponding NBCC and attribute, and this part information can be recovered in the SCM resource part data about the one or more carrier wave.

Owing to switching when occuring, might there be the situation of the undesired and resource recovery information drop-out of BBU work, therefore still be as the criterion with the data that the incremental backup process writes for the upper corresponding resource of the BBU that does not receive resource recovery message. After new SCM slave board started successfully, OM can trigger overall backup procedure, with the resource backup of new SCM mainboard in new SCM slave board.

Switch rear resource recovery process as shown in Figure 5 according to of the present invention, be described in detail as follows:

Step 1, SCM mainboard abnormal;

Step 2, OM detects unusual generation, triggers switching notification message to former SCM slave board, notifies former SCM slave board to switch;

Step 3, former SCM slave board send to OM and switch response message, and notice OM reversed process begins to carry out;

Step 4, former SCM slave board upgrades to the SCM mainboard, starts resource recovery process timer, and length is 1 second level, revises to switch to be designated notReady, and the sign reversed process is carried out, and during this period, does not process for message such as RNC message and OM configurations;

Step 5, new SCM mainboard (former SCM slave board) sends the resource recovery request message to BBU now working properly;

Step 6, if a plurality of BBU is working properly, new SCM mainboard (former SCM slave board) sends the resource recovery request message to a plurality of BBU;

Step 7, BBU organizes the resource on this BBU after receiving new SCM mainboard (former SCM slave board) NodeB resource recovery request message, sends to new SCM mainboard (former SCM slave board) resource recovery response message according to certain format;

Step 8, if a plurality of BBU is working properly, each BBU can take and step 7 same operation;

Step 9, new SCM mainboard (former SCM slave board) is if received the resource recovery response message that all normal operation sub-processors send before timer expiry, then dispose the upper NBAP resource of new SCM mainboard (former SCM slave board) according to the resource recovery response message of receiving, abort timer, modification is switched and is designated Ready, and the sign reversed process is finished;

New SCM mainboard (former SCM slave board) if before not receiving all resource recovery response messages timer expiry, then do not revise the NBAP resource on the new SCM mainboard (former SCM slave board), modification is switched and is designated Ready, and the sign reversed process is finished;

Step 10, new SCM mainboard (former SCM slave board) sends to RNC and verifies request message, because reversed process might cause RNC and NodeB resource inconsistent, after RNC receives and verifies request message, initiate to verify request message and further make RNC and NodeB resource consistence;

Step 11 when new SCM slave board (former SCM mainboard) is finished initialization again, can detect this plate by driving triggering OM and start successfully;

Step 12, OM detects new SCM slave board (former SCM mainboard) and starts successfully, triggers overall backup request message to new SCM mainboard (former SCM slave board);

Step 13, new SCM mainboard (former SCM slave board) receives overall backup request message, and whole resources that will back up send to the Hot Spare driver module by certain form packing, begin overall backup procedure; The operation of back is identical with overall backup procedure, does not repeat them here.

More than describe incremental backup, overall situation backup in detail, switch the backup method that rear NBAP resource recovery various ways combines.

Embodiment three

Below RNC message and the processing of OM configuration messages and the processing of carrying out process during the main explanation NBAP resource recovery process (reversed process).

In NBAP resource recovery process, be consistent owing to will guarantee the NBAP resource of this moment SCM and a plurality of BBU, therefore, require during the NBAP resource recovery, can not carry out new NBAP process, otherwise the NBAP resource of the upper storage of SCM is easy to the generation confusion. For the RNC resource allocation request message of receiving in the resource recovery process and OM resource distribution message, this part message after wait resource recovery process is finished, is carried out the processing of this part message temporarily at the SCM buffer memory again.

NBAP process for the RNC initiation, will be to new SCM mainboard (former SCM slave board) after generation is switched in the BBU judgement, send one and switch rear response message, replace the under normal circumstances inner NBAP resource allocation response of NodeB message, new SCM mainboard (former SCM slave board), receive and no longer dispose local NBAP resource after this switches rear response message, and directly send this NBAP process response message to RNC, success response or failure response depend on the success and failure of inner NBAP resource allocation response message, avoided the NBAP resource repeat write.

For the NBAP process that NodeB initiates, during switching, receive the RNC response after, this part message is temporarily at new SCM mainboard (former SCM slave board) buffer memory, wait for that the resource recovery process is finished after, carry out again the processing of this part message.

SCM according to resource recovery method of the present invention upward judges the flow process (program that the operation of SCM slave board is identical) shown in Fig. 6 (a) of processing to message:

Step 1, the SCM program begins, and turns to step 2;

Step 2, initialization is switched and is designated Ready, and sign is not switched generation, and the initiating task receipt message turns to step 3;

Step 3, the SCM task receives message, turns to step 4;

Step 4 is judged and is switched sign, is designated Ready if switch, and sign is not switched generation, turns to step 5, carries out otherwise identify to switch, turns to step 10;

Step 5 judges whether the type of message that receives is OM notice switching messages, if so, turns to step 6, otherwise turns to step 7;

Step 6, the message that receives are OM notice switching messages, then revise to switch being designated notReady, and sign is switched generation, starts to switch timer, the rear steering of finishing dealing with step 3;

Step 7 judges whether the type of message that receives is the rear response message of switching of BBU transmission, if so, turns to step 9, otherwise turns to step 8;

Step 8, the message that receives are general message, carry out normal Message Processing, the resource of configuration SCM plate, the rear steering of finishing dealing with step 3;

Step 9, the message that receives are the rear response messages of switching of BBU transmission, directly return response message to RNC, the rear steering of finishing dealing with step 3;

Step 10 is switched and is designated notReady, judges whether the type of message that receives is the resource recovery response message that BBU sends, and if so, turns to step 14, otherwise turns to step 11;

Step 11 judges that the type of message that receives whether for switching overtime message, if so, turns to step 16, otherwise turns to step 12;

Step 12 judges whether the type of message that receives is the rear response message of switching of BBU transmission, if so, turns to step 9, otherwise turns to step 13;

Step 13, the message that receives are general message, this moment the reversed process well afoot, this part message buffering is processed first this part message, the rear steering of finishing dealing with step 3 after switching messages finishes;

Step 14, the message that receives are the resource recovery response messages that BBU sends, and the resource recovery response message that the son of judgement normal operation has been processed receives, and if so, turns to step 15, otherwise turns to step 3;

Step 15, the resource recovery response message receives, and ends to switch timer, recovers the SCM resource according to message content, turns to step 16;

Step 16, the type of message that the resource recovery response message receives or receives are to switch overtime message, revise to switch being designated Ready, and sign is not switched generation, and reversed process finishes, and turns to step 3.

Message is judged according to the BBU of resource recovery method of the present invention is upper the below is elaborated shown in the flow chart 6 (b) of processing.

Step 1, the BBU program begins, and turns to step 2;

Step 2, initialization is switched and is masked as 0, and the initiating task receipt message turns to step 3;

Step 3, the BBU task receives message, turns to step 4;

Step 4 judges whether the type of message that receives is SCM resource recovery request message, if so, turns to step 5, otherwise turns to step 6;

Step 5, the type of message that receives are SCM resource recovery request messages, illustrate that this moment, the SCM plate was switched generation, sign is switched in modification, is set to 1 or be set to 0 from 1 from 0, stores new SCM address, construct resource recovery message and send the rear steering of finishing dealing with step 3 to SCM;

Step 6 judges whether the type of message that receives is the resource distribution message that SCM sends, and if so, turns to step 7, otherwise turns to step 8;

Step 7, the type of message that receives are the resource distribution message that SCM sends, preserve and switch sign, and the configuration Base Band Unit, configuration is also preserved local resource, turns to step 8;

Step 8, the message that receives is the message of timer message or Base Band Unit, or handles the resource distribution message that SCM sends, and judges whether satisfy condition from response message to SCM that return this moment, if satisfy, turns to step 9, otherwise turns to step 3;

Step 9 satisfies condition from response message to SCM that return, judge switch this moment sign and preserve before switch sign whether counter-rotating occured, if turn to step 10, otherwise turn to step 11;

Step 10, counter-rotating has occured in the sign of switching of switching sign and preserving before, illustrates that SCM has occured to switch, and this moment, the local resource of BBU took the SCM plate to by resource recovery message, return to SCM and to switch rear response message, the rear steering of finishing dealing with step 3;

Step 11, the sign of switching of switching sign and before preservation does not reverse, and illustrates that SCM does not switch, and returns NodeB internal configurations response message to SCM, the rear steering of finishing dealing with step 3.

Can be found out by the above, because the present invention has adopted RNC configuration request message and OM configuration messages and RNC response message buffering in the above-mentioned resource recovery process, and the alternative under normal circumstances method of NodeB internal resource configuration response message of rear response message is switched in employing, guaranteed that the NBAP process of not finishing during the resource recovery can carry out, the new process that RNC, OM trigger can be proceeded after switching. For this reason, adopted one to switch sign and switch timer and guaranteed the reliability of NBAP resource in the flow process on the SCM.

The system of resource distribution formula storage of the present invention and data backup and resume method thereof not only are confined to storage, the data backup and resume for the NBAP resource on the NodeB, those skilled in the art can be by known technological know-how, the technical scheme of instructing according to the present invention, be configured processing and backup and recovery for the resource in other any Data Transport Protocols, such as, SCM, BBU distributed frame also can be applied to a lot of software modules, OM Operation and Maintenance software for example, the resource of OM management also can split according to the resource of the necessary resource of distribution and BBU management, can take same processing policy and flow process when backup and resource recovery.

Claims (4)

1. the backup method of the NBAP resource of a NodeB, NodeB comprises the control and management cell S CM of system and baseband processing unit BBU, wherein SCM is used for storage to the necessary resource of each BBU distribution NodeB inner configuration request message, BBU is used for resource and the required resource of Base-Band Processing of the upper storage of storage SCM, and the method comprising the steps of:

Step 1, SCM mainboard receive the resource allocation request message that RNC sends, and the BBU that has influence on to this NBAP sends the NodeB inner configuration request message;

Step 2, BBU receives the NodeB inner configuration request message, finishes the configuration to Base Band Unit, returns the configuration successful response message to the SCM mainboard;

Step 3, SCM mainboard receive BBU internal configurations success response message, then dispose the NBAP resource on the SCM mainboard, and the resource that will back up sends to the SCM slave board;

Step 4, the SCM slave board is according to the corresponding resource of resource modifying of backup.

2. the restoration methods of the NBAP resource of a NodeB, NodeB comprises SCM and BBU, wherein SCM is used for storage to the necessary resource of each BBU distribution NodeB inner configuration request message, and BBU is used for resource and the required resource of Base-Band Processing of the upper storage of storage SCM, and the method comprising the steps of:

Step 1, Operation and Maintenance Unit OM detects SCM mainboard abnormal, triggers switching notification message to former SCM slave board, notifies former SCM slave board to switch;

Step 2, former SCM slave board upgrades to new SCM mainboard, starts resource recovery process timer, and the sign reversed process is carried out;

Step 3, new SCM mainboard sends the resource recovery request message to BBU working properly;

Step 4 if new SCM mainboard received the resource recovery response message that all normal operation sub-processors send before timer expiry, then enters step 5; If new SCM mainboard timer expiry before not receiving all resource recovery response messages is not then revised the NBAP resource on the new SCM mainboard, revise to switch being designated Ready, the sign reversed process is finished;

Step 5, the resource recovery response message that new SCM mainboard basis is received disposes the resource on the new SCM mainboard, and abort timer identifies new SCM mainboard reversed process and finishes.

3. method according to claim 2 is characterized in that, also comprises step after the step 5:

NodeB sends to RNC and verifies request message.

4. method according to claim 2 is characterized in that,

Comprise also in described step 5 SCM judges whether the type of message that receives is RNC resource allocation request message or OM resource distribution message, if so, with message buffering.

Images