CN102595497A - System and method of code division multiple access (CDMA) data business for easing processor overload automatically - Google Patents
System and method of code division multiple access (CDMA) data business for easing processor overload automatically Download PDFInfo
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- CN102595497A CN102595497A CN2012100789831A CN201210078983A CN102595497A CN 102595497 A CN102595497 A CN 102595497A CN 2012100789831 A CN2012100789831 A CN 2012100789831A CN 201210078983 A CN201210078983 A CN 201210078983A CN 102595497 A CN102595497 A CN 102595497A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0247—Traffic management, e.g. flow control or congestion control based on conditions of the access network or the infrastructure network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
Abstract
The invention relates to a system of code division multiple access (CDMA) data business for easing processor overload automatically, which comprises a base station controller module, a base station module, a paging load control module, an overload state recording module and a grouping control module. The system of the CDMA data business for easing processor overload automatically acquires load states of a base station and a base station controller, adjusts data volume of paging queue to be sent of upper-stream nodes of the base station controller according to the load states, controls quantity and time of paging information to be sent to the base station controller, avoids that volume of business processed by the base station controller and the base station reaches the peak instantly, thereby achieving a paging load transmitting closed-loop control link and a mechanism with the aim that system capacity cannot overload, and improving reliability that users can obtain business service at a telephone traffic peak period.
Description
Technical field
The present invention relates to the CDMA technology field, specifically is a kind of CDMA data service system and method for automatic alleviation processor overload.
Background technology
Commercial at present CDMA (the Code Division Multiple Access that moves; Code division multiple access; One of 2G and 3G wireless network standard) the Packet data service system adopts is the distributed processors network architecture: be provided with the processor that Operation and Maintenance processor, RAP, base station insert multiple execution different tasks such as processor, call control processor, dedicated signaling processor, packet data control processor in the base station controller, and a large amount of inside of base station that link to each other with base station controller also are provided with the base station main control processor.
When certain processor causes utilance too high owing to task is overweight, can go out current task and handle abnormal conditions such as time-delay increase, make flow of packet data traffic journey mortality raise.For example, the internal communication signaling between the veneer is lost, or veneer processing signaling overlong time makes that the waiting timer of another veneer is overtime and causes the Business Processing failure.
Current CDMA Packet data service system is when running into the situation of above-mentioned processor overload; Can't control the traffic load of inflow system based on the overload degree of current system processing power from the source; But abandon current pending interior signaling and the medium face data of waiting; Thereby the QoS that the user obtained that causes having inserted in the network and inserting descends, even continues can not get to improve.
Increase along with offered load; These abnormal conditions are increasingly high at the occurrence frequency of Peak Hour; If directly carry out the processor dilatation to lighten the load, then possibly cause non-Peak Hour processor utilization lower, make the whole economic efficiency of network operation descend.
Summary of the invention
Main purpose of the present invention provides a kind of CDMA data service system of alleviating the processor overload, transmits to realize more efficient network data.
The present invention proposes a kind of CDMA data service system of automatic alleviation processor overload, comprises base station controller module, base station module, paging load control module, overload logging modle and grouping control module;
Said base station module is sent to said base station controller module after being used to obtain base station main processing controller utilance;
Said base station controller module is used to obtain in said base station main control processor utilance and the base station controller and is sent to said overload logging modle after each task processor utilance;
Said overload logging modle is used for according to the said utilance matching system overload class that gets access to;
Said paging load control module is used for according to said system overload grade control data bag formation transmission to downstream node;
Said grouping control module PCF (Packet Control Function) is used for carrying out data interaction with packet data serving node PDSN (Packet Data Serving Node) and base station controller.
Preferably, said paging load control module is according to said system overload grade adjustment packet send window, and the packet of window prescribed level is sent to downstream node.
Preferably, said overload logging modle comprises:
Overload class assignment unit is used for carrying out the overload class assignment according to said utilance for each processor;
The overload class unit is used for calculating and the matching system overload class according to the overload class value.
Preferably, said overload class unit specifically is used for:
Said overload class value summation and coupling system disposal ability overload historic state to all processors carry out recursive operation acquisition system processing power overload currency; The matching system overload class, notice paging load control module when the overload grade changes.
Preferably, also comprise the priority identification module, be used for the packet that the paging load control module will be sent out is to downstream node carried out prioritization.
Preferably, said priority identification module specifically is used for:
The said packet that will trigger paging that will send out is to downstream node carried out the protocol analysis row major level assignment of going forward side by side;
With the said packet that will trigger paging according to priority order put into buffering area and travel through formation, when the user profile of the packet of new insertion buffering area and buffering area data with existing bag is identical, press user profile merging data bag:
Before if the data with existing bag comes new insertion packet, then will newly insert packet and move and be incorporated into the data with existing bag, be incorporated into new insertion packet otherwise the data with existing bag moved.
The present invention also proposes a kind of method of automatic alleviation CDMA data service system processor overload, may further comprise the steps:
Obtain utilance and interior each the task processor utilance of base station controller of base station main processing controller;
According to the said utilance matching system overload class that gets access to;
According to said overload class control data bag formation transmission to downstream node.
Preferably, said step according to system overload grade control data bag formation transmission to downstream node specifically comprises:
According to said system overload grade adjustment packet send window, the packet of window prescribed level is sent to downstream node.
Preferably, the step of the said utilance matching system overload class that gets access to of said basis comprises:
Carry out the overload class assignment according to said utilance for each processor;
Calculate and the matching system overload class according to the overload class value.
Preferably, said step according to overload class value matching system overload class specifically comprises:
Said overload class value summation and coupling system disposal ability overload historic state to all processors carry out recursive operation acquisition system processing power overload currency, matching system overload class.
Preferably, also comprise before the said step according to overload class control data bag formation transmission to downstream node:
Packet to sending out to downstream node carries out prioritization.
Preferably, saidly specifically comprise sending out the step that to downstream node packet carries out prioritization:
The said packet that will trigger paging that will send out is to downstream node carried out protocol analysis and gives priority assignment;
With the said packet that will trigger paging according to priority order put into buffering area and travel through formation, when the user profile of the packet of new insertion buffering area and buffering area data with existing bag is identical, press user profile merging data bag:
Before if the data with existing bag comes new insertion packet, then will newly insert packet and move and be incorporated into the data with existing bag, be incorporated into new insertion packet otherwise the data with existing bag moved.
The CDMA data service system of a kind of automatic alleviation processor overload provided by the invention; Through obtaining the load condition of base station and base station controller; And regulate the data volume of the page queue to be sent that base station controller upstream node sends according to this load condition; And then controlled to exhale and built quantity and the time that message is sent to base station controller; Avoid instantaneous the peaking of traffic carrying capacity of base station controller and base station processes, thereby realized with the system capability nonoverload being the paging load transmission closed-loop control link and mechanism of target, improved the reliability of user in Peak Hour acquisition business service.
Description of drawings
Fig. 1 is the structural representation among the CDMA data service system embodiment of automatic alleviation processor overload provided by the invention;
Fig. 2 is the structural representation of overload logging modle among the CDMA data service system embodiment of automatic alleviation processor overload provided by the invention;
Fig. 3 is the structural representation among another embodiment of CDMA data service system of automatic alleviation processor overload provided by the invention;
Fig. 4 is the flow chart of steps among the method embodiment of automatic alleviation CDMA data service system overload provided by the invention;
Fig. 5 among the method embodiment of automatic alleviation CDMA data service system overload provided by the invention according to the flow chart of steps of the utilance matching system overload class that gets access to;
Fig. 6 is the flow chart of steps among another embodiment of method of automatic alleviation CDMA data service system overload provided by the invention.
The realization of the object of the invention, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
With reference to Fig. 1; The present invention provides a kind of CDMA data service system of alleviating the processor overload, and this system comprises base station module 110, base station controller module 120, overload logging modle 130, paging load control module 140 and grouping control module 150 at least:
Base station controller module 120; Be used to obtain in base station main control processor utilance and the base station controller and be sent to overload logging modle 130 after each task processor utilance, and be responsible for and base station, overload logging modle, Packet Control Function module communication;
Paging load control module 140 is used for according to system overload grade control data bag formation transmission to downstream node; Paging load control module 140 links to each other with the upstream network element node of PCF or PCF; In the various network framework; The network element node that connects with paging load control module 140 is different; Can be PCF or PSDN, can also be the similar network element node such as router or switch on the bearer network.Paging load control module 140 is according to the system overload grade adjustment packet send window of overload logging modle 130 coupling, and the packet of window specified quantity is sent to downstream node.For example; When paging load control module 140 is connected with PCF; The downstream node of PCF is a base station controller; Paging load control module 140 is mated adjustment and is transmitted to the data packet queue that base station controller sends paging being about to be sent to PCF and triggering it according to the load condition of base station controller, thereby can alleviate the load of base station controller when being implemented in CPU overload automatically.
The present invention is alleviated among the embodiment of CDMA data service system of processor overload, and overload logging modle 130 can be obtained utilance and inner each task processor utilance of base station controller of base station main processing controller through base station controller.The base station is periodically monitored the utilance of main processing controller and is sent to base station controller; The utilance of each task processor (for example in the base station controller periodicity supervisory control system; Task processor comprises Operation and Maintenance processor, RAP, base station access processor, call control processor, dedicated signaling processor and grouping processor controls); After base station controller gets access to the utilance of utilance and each processor of base station controller of base station main processing controller; Allow the upper limit or return to normal range (NR) if utilance surpasses from surpassing the upper limit; Base station controller is sent to overload logging modle 130 with the utilance data, for its processing.
Please with reference to Fig. 2, in one embodiment, overload logging modle 130 specifically comprises overload assignment unit 131 and overload class unit 132.Wherein,
When the utilance of processor is in higher range, explain that the load of system's this moment is higher, be necessary to alleviate system loading pressure.The utilance of each task processor is carried out assignment to the overload class value in the utilance of the base station main processing controller that overload assignment unit 131 bases get access to and the base station.For example, in the present embodiment, to the concrete condition of each processor, overload assignment unit 131 carries out the overload class value:
When the utilance of Operation and Maintenance processor greater than 90% the time, the overload class value is (1/ the type processor sum);
When the utilance of RAP greater than 90% the time, the overload class value is (5/ the type processor sum);
The utilance that inserts processor when the base station is greater than 90% the time, and the overload class value be (3/ the type processor is total);
When the utilance of dedicated signaling processor greater than 90% the time, the overload class value is (3/ the type processor sum);
When the utilance of packet data control processor greater than 90% the time, the overload class value is (3/ the type processor sum);
When the utilance of call control processor greater than 80% the time, the overload class value is (5/ the type processor sum);
When the utilance of base station main control processor greater than 80% the time, the overload class value is (50/ total number of base).
After overload assignment unit 131 had been accomplished system overload grade point assignment, overload class unit 132 was according to each the processor overload class value matching system overload class that gets access to, and this overload class is used for the transmission of paging load module 130 control formations.
More concrete; On the basis of previous embodiment; The 132 pairs of overload class values in overload class unit are sued for peace and coupling system disposal ability overload history value is carried out recursive operation acquisition system processing power overload currency, matching system overload class;
That the overload class value summation that 132 pairs of overload class unit get access to each processor obtains the system overload state value and X (n); With the system overload state value that has got access to and X (n) and system overload state value history value Y (n-1) as input variable, adopt following formula to get access to system overload state currency:
Y(n)＝(1-1/ε)×Y(n-1)+(1/ε)×X(n)
Wherein, Y (n) represents the system overload state currency that n cycle calculate, and ε is a weight parameter, be used to divide the history value Y (n-1) of system overload state value and the system overload state value that gets access to and X (n).The system overload state currency Y (n) that gets access to preserves as system overload state history value, is used for the calculating of n+1 periodic system overload value.
Y (n) belongs in (1,10) interval, and then the system overload grade is an one-level;
Y (n) belongs in (10,20) interval, and then the system overload grade is a secondary;
Y (n) belongs in (20,30) interval, and then the system overload grade is three grades;
Y (n) belongs in (30,40) interval, and then the system overload grade is a level Four.
Paging load control module 140 will be notified in overload class unit 132 when the overload grade changes, and paging load control module 140 is according to the transmission of this system overload grade control page queue.In the present embodiment; Be connected to example (as paging load control module 140 is resided among the PCF) with paging load control module 140 with PCF; Method of the present invention is described, and paging load control module 140 is adjusted packet send window and security window according to the system overload grade of coupling:
If overload has appearred in system processing power; Then paging load control module 140 is adjusted into 1/2 of packet send window size when overload takes place with security window, and is 1/ (overload class+3) of current size based on overload class downward modulation packet send window;
If system processing power is overload not, then dynamically update the packet send window: if the current data packet send window, is then adjusted the packet send window less than security window is 2 times of current size; If it is 1.1 times of current size that the current data packet send window, is then adjusted the packet send window greater than security window.Paging load control module 140 is according to packet send window adjustment buffer size.
When the paging load control module 140 in the PCF receives the data packet queue that upstream node hands down; Whether set up through PCF inspection user's link corresponding (A8 link); When setting up, paging load control module 140 is directly given PCF with the data packet queue that receives and is forwarded to corresponding base station controller; Otherwise will temporarily put into buffering area.
When the buffering area of paging load control module 140 in full load or the buffering area packet loaded and etc. to be sent reach certain hour after, paging load control module 140 is taken out data packet queue in order from buffering area and is forwarded to PCF.
Under the extreme overload situations of system CPU; The situation that paging load control module 140 affiliated packet send windows are closed or extremely shrink may appear; This moment may occur flowing into the situation that the packet of paging load control module 140 overflows buffering area, paging load control module 140 will abandon these packets that overflows.
Please with reference to Fig. 3, in another embodiment, system provided by the invention also comprises priority identification module 160, is used for the packet that paging load control module 140 will be sent out is to downstream node carried out prioritization.After priority identification module 160 is accomplished the prioritization of packet, data packet queue is returned paging load control module 140, send packet by it and give PCF, thereby ensure that important service is preferentially triggered paging.More concrete, 160 pairs of priority identification modules will be sent out to downstream node packet and carry out the protocol analysis row major level assignment of going forward side by side;
With packet according to priority order put into buffering area and travel through formation, when the user profile of the packet of new insertion buffering area and buffering area data with existing bag is identical, press user profile merging data bag:
Before if the data with existing bag comes new insertion packet, then will newly insert packet and move and be incorporated into the data with existing bag, be incorporated into new insertion packet otherwise the data with existing bag moved.
Following PCF is that example is further described priority identification module 160 as the upstream network element node, is appreciated that to paging load control module 140 is connected with PCF this moment, and for example, it is inner to reside in traditional P CF.
When the paging load control module 140 in the PCF receives the data packet queue that upstream node hands down; Whether set up through PCF inspection user's link corresponding (A8 link); When setting up, paging load control module 140 is directly given PCF with the data packet queue that receives and is forwarded to corresponding base station controller; Otherwise, earlier data packet queue is forwarded to priority identification module 160.
After the parsing that priority identification module 160 is accomplished packet, adopt the priority policy that presets that priority assignment is carried out in formation according to analysis result, and it is sorted.For example, priority identification module 160 is kept a buffering area and a timer T1 that size is identical with the packet send window of paging load control module 140, and priority identification module 160 is put into packet in the buffering area before timer T1 is overtime.Priority identification module 160 is given the treaty override level based on the protocol analysis result for each packet, safeguards timer T2 for each packet simultaneously, and T2 changes from big to small.Get access to final each priority of data packets according to following formula:
Final each priority of data packets=treaty override level/T2
For the continuity that guarantees that formation is sent, priority identification module 160 packet send window granularities are the user, and promptly belonging to same user's data bag must transmit simultaneously.In the present embodiment; Priority identification module 160 is put into the packet in the formation buffering area and is traveled through formation; Existing packet and the new position relation of inserting between the packet in the inquiry buffering area; Wherein, If find that the data with existing bag is identical by user profile merging data bag with the new user profile of inserting packet: before coming new insertion packet as if the interior data with existing bag of buffering area, then will newly insert packet and move and be incorporated into the data with existing bag, and be incorporated into new insertion packet otherwise data with existing bag in the buffering area moved.
If buffering area has been filled or timer T1 is overtime, then data are returned paging load control module 140 in the priority identification module 160 taking-up buffering areas.
Under the extreme overload situations of system CPU; The situation that the packet send window is closed or extreme is shunk that priority identification module 160 is endowed may appear; This moment can occur flowing into the situation that the packet of priority identification module 160 overflows buffering area, priority identification module 160 will abandon these packets that overflows.
When paging load control module 140 received new packet and is transmitted to PCF, priority identification module 160 also carried out prioritization in circulation to the next group packet that newly receives.
The CDMA data service system of a kind of automatic alleviation processor overload provided by the invention; Through obtaining the load condition of base station and base station controller; And regulate the data volume of the page queue to be sent that base station controller upstream node sends according to this load condition; And then controlled to exhale and built quantity and the time that message is sent to base station controller; Avoid instantaneous the peaking of traffic carrying capacity of base station controller and base station processes, thereby realized with the system capability nonoverload being the paging load transmission closed-loop control link and mechanism of target, improved the reliability of user in Peak Hour acquisition business service.
With reference to Fig. 4, the present invention also proposes a kind of method of the CDMA of alleviation data service system processor overload, may further comprise the steps:
S410: obtain the utilance of main processing controller in the base station and the utilance of inner each task processor of base station controller;
Obtain utilance and inner each task processor utilance of base station controller of base station main processing controller through base station controller.The base station is periodically monitored the utilance of main processing controller and is sent to base station controller; The utilance of each task processor (for example in the base station controller periodicity supervisory control system; Task processor comprises Operation and Maintenance processor, RAP, base station access processor, call control processor, dedicated signaling processor and grouping processor controls); Allow the upper limit or allow the upper limit to return to normal range (NR) from surpassing if utilance surpasses, system will be notified the last look of each processor utilization.
S420: according to the utilance matching system overload class that gets access to; The utilance that gets access to has reflected the load condition of system, and according to this utilance matching system overload class, this overload class is used for the transmission to downstream node of control data bag.
Please with reference to Fig. 5, more concrete, step S420 may further comprise the steps:
S421: carry out the overload class value for each processor according to getting access to utilance;
When the utilance of processor is in higher range, explain that the load of system's this moment is higher, be necessary to alleviate system loading pressure.The utilance of each task processor is carried out the overload class assignment in the utilance of the base station main processing controller that system's basis gets access to and the base station.For example, in the present embodiment, to the concrete condition of each processor, system carries out the overload class assignment:
When the utilance of Operation and Maintenance processor greater than 90% the time, the overload class value is (1/ the type processor sum);
When the utilance of RAP greater than 90% the time, the overload class value is (5/ the type processor sum);
The utilance that inserts processor when the base station is greater than 90% the time, and the overload class value be (3/ the type processor is total);
When the utilance of dedicated signaling processor greater than 90% the time, the overload class value is (3/ the type processor sum);
When the utilance of packet data control processor greater than 90% the time, the overload class value is (3/ the type processor sum);
When the utilance of call control processor greater than 80% the time, the overload class value is (5/ the type processor sum);
When the utilance of base station main control processor greater than 80% the time, the overload class value is (50/ total number of base).
S422: according to the overload class value matching system overload class that gets access to;
In this step, system is according to each the processor overload class value matching system overload class that gets access to, and this overload class is used to control the transmission of formation.More concrete, system sues for peace to the overload class value and coupling system disposal ability overload history value is carried out recursive operation acquisition system processing power overload currency, matching system overload class;
That the summation of the overload class value that gets access to obtains the system overload state value and X (n); With the system overload state value that has got access to and X (n) and system overload state value history value Y (n-1) as input variable, adopt following formula to get access to system overload state currency:
Y(n)＝(1-1/ε)×Y(n-1)+(1/ε)×X(n)
Wherein, Y (n) represents the system overload state currency that n cycle calculate, and ε is a weight parameter, be used to divide the history value Y (n-1) of system overload state value and the system overload state value that gets access to and X (n).The system overload state currency Y (n) that gets access to preserves as system overload state history value, is used for the calculating of n+1 periodic system overload value.
According to currency Y (n) the matching system overload class of acquired system mode value, when the currency of system mode value was big more, the system overload grade of coupling was high more:
Y (n) belongs in (1,10) interval, and then the system overload grade is an one-level;
Y (n) belongs in (10,20) interval, and then the system overload grade is a secondary;
Y (n) belongs in (20,30) interval, and then the system overload grade is three grades;
Y (n) belongs in (30,40) interval, and then the system overload grade is a level Four.
S430: according to overload class control data bag formation transmission to downstream node; Control is positioned at the transmission of the upstream network element node data bag formation of base station controller to base station controller according to overload class; In the various network framework; This upstream network element node is different; Can be PCF or PSDN, can also be the similar network element node such as router or switch on the bearer network.System is according to overload class adjustment upstream network element node data bag send window, and the packet of window specified quantity is sent to downstream node.For example; When the upstream network element node is PCF; The downstream node of PCF is a base station controller; System matees adjustment and transmits to the data packet queue that base station controller sends paging being about to be sent to PCF and triggering it according to the load condition of base station controller, thereby can alleviate the load of base station controller when being implemented in CPU overload automatically.
More concrete, in the present embodiment, system periodically adjusts packet send window and security window according to the system overload grade of coupling:
If overload has appearred in system processing power, then security window is adjusted into 1/2 of packet send window size when overload takes place, and is 1/ (overload class+3) of current size based on overload class downward modulation packet send window;
If system processing power is overload not, then dynamically update the packet send window: if the current data packet send window, is then adjusted the packet send window less than security window is 2 times of current size; If it is 1.1 times of current size that the current data packet send window, is then adjusted the packet send window greater than security window.
When upstream node sent packet to system, whether system set up through PCF inspection user's link corresponding (A8 link), and when setting up, system directly is forwarded to PCF with the data packet queue that receives; Otherwise system will temporarily put into buffering area with packet.
When buffering area in full load or the buffering area packet loaded and etc. to be sent reach certain hour after, system is forwarded to PCF with the data packet queue in the buffering area in order.
Under the extreme overload situations of system CPU, the situation that the packet send window is closed or extreme is shunk may appear being used for, and the situation that the upstream data bag overflows send window may appear in this moment, and these packets that overflow will be dropped.
Please, in another embodiment, also comprise before the step S430 with reference to Fig. 6:
S440: the packet to sending out to downstream node carries out prioritization; System sends packet according to priority orders after the prioritization of accomplishing packet, sent by preferential to ensure important service.More concrete, step S440 specifically may further comprise the steps:
Carry out the protocol analysis row major level assignment of going forward side by side to sending out to downstream node the packet that will trigger paging;
With the packet that is about to trigger paging according to priority order put into buffering area and travel through formation, when the user profile of the packet of new insertion buffering area and buffering area data with existing bag is identical, press user profile merging data bag:
Before if the data with existing bag comes new insertion packet, then will newly insert packet and move and be incorporated into the data with existing bag, be incorporated into new insertion packet otherwise the data with existing bag moved.
The packet that will be sent to downstream node with adjustment PCF in the present embodiment is an example, the present invention further described,
When system receives the data packet queue that upstream node hands down, whether set up through PCF inspection user's link corresponding (A8 link), when setting up, directly giving PCF with the data packet queue that receives initiates paging by it to base station controller; Otherwise, data packet queue is carried out prioritization.
System resolves the data packet queue that will trigger paging that PCF is about to be sent to downstream node, and with the content that parsing gets access to prioritization is carried out in formation.For example, whether default policy can be the File Transfer Protocol packet for distinguishing this packet in the present embodiment, and in other embodiment, the input that can also accept the user is provided with parses policy, and according to the strategy that the user is provided with packet is resolved.
After system accomplishes the parsing to packet, adopt the priority policy that presets that data packet queue is carried out priority assignment according to analysis result, and it is sorted.For example, system can keep a buffering area and a timer T1 that size is identical with the packet send window, before timer T1 is overtime, packet is put in the buffering area.Give the treaty override level based on the protocol analysis result for each packet, safeguard timer T2 for each packet simultaneously, T2 changes from big to small.Get access to final each priority of data packets according to following formula:
Final each priority of data packets=treaty override level/T2
For the continuity that guarantees that formation is sent, packet send window granularity is the user, and promptly belonging to same user's data bag must transmit simultaneously.In the present embodiment; System will travel through formation after the packet in the formation is according to priority put into buffering area; Existing packet and the new position relation of inserting between the packet in the inquiry buffering area; Wherein, If find that the data with existing bag is identical by user profile merging data bag with the new user profile of inserting packet: before coming new insertion packet as if the interior data with existing bag of buffering area, then will newly insert packet and move and be incorporated into the data with existing bag, and be incorporated into new insertion packet otherwise data with existing bag in the buffering area moved.
If buffering area has been filled or timer T1 is overtime, then takes out in the buffering area size and return PCF for the packet of packet send window.
Under the extreme overload situations of system CPU, the situation that the packet send window is closed or extreme is shunk that buffering area is endowed may appear, the situation that the packet that can occur flowing into this moment overflows buffering area, the packet that overflows will be dropped.
A kind of method of alleviating CDMA data service system processor overload provided by the invention; Through obtaining the load condition of base station and base station controller; And regulate the data volume of the page queue to be sent that base station controller upstream node sends according to this load condition; And then controlled to exhale and built quantity and the time that message is sent to base station controller; Avoided base station controller to peak, thereby realized with the system capability nonoverload being the paging load transmission closed-loop control link and mechanism of target, improved the reliability of user in Peak Hour acquisition business service in the traffic carrying capacity of base station processes is instantaneous.
More than be merely preferred embodiment of the present invention,, all any modifications of within spirit of the present invention and principle, being done, be equal to and replace and improvement etc., all should be included within protection scope of the present invention not in order to restriction the present invention.
Claims (12)
1. a CDMA data service system of alleviating the processor overload automatically is characterized in that, comprises base station controller module, base station module, paging load control module, overload logging modle and grouping control module;
Said base station module is sent to said base station controller module after being used to obtain base station main processing controller utilance;
Said base station controller module is used to obtain in said base station main control processor utilance and the base station controller and is sent to said overload logging modle after each task processor utilance;
Said overload logging modle is used for according to the said utilance matching system overload class that gets access to;
Said paging load control module is used for according to said system overload grade control data bag formation transmission to downstream node;
Said grouping control module is used for carrying out data interaction with packet data serving node PDSN (Packet Data Serving Node) and base station controller.
2. system according to claim 1 is characterized in that, said paging load control module is according to said system overload grade adjustment packet send window, and the packet of window specified quantity is sent to downstream node.
3. system according to claim 1 is characterized in that, said overload logging modle comprises:
Overload class assignment unit is used for carrying out the overload class assignment according to said utilance for each processor;
The overload class unit is used for calculating and the matching system overload class according to the overload class value.
4. system according to claim 3 is characterized in that, said overload class unit specifically is used for:
Said overload class value summation and coupling system disposal ability overload historic state to all processors carry out recursive operation acquisition system processing power overload currency; The matching system overload class, notice paging load control module when the overload grade changes.
5. system according to claim 1 is characterized in that, also comprises the priority identification module, is used for the packet that the paging load control module will be sent out is to downstream node carried out prioritization.
6. system according to claim 5 is characterized in that, said priority identification module specifically is used for:
The said packet that will trigger paging that will send out is to downstream node carried out the protocol analysis row major level assignment of going forward side by side;
With the said packet that will trigger paging according to priority order put into buffering area and travel through formation, when the user profile of the packet of new insertion buffering area and buffering area data with existing bag is identical, press user profile merging data bag:
Before if the data with existing bag comes new insertion packet, then will newly insert packet and move and be incorporated into the data with existing bag, be incorporated into new insertion packet otherwise the data with existing bag moved.
7. a method of alleviating CDMA data service system processor overload automatically is characterized in that, may further comprise the steps:
Obtain utilance and interior each the task processor utilance of base station controller of base station main processing controller;
According to the said utilance matching system overload class that gets access to;
According to said overload class control data bag formation transmission to downstream node.
8. method according to claim 7 is characterized in that, said step according to system overload grade control data bag formation transmission to downstream node specifically comprises:
According to said system overload grade adjustment packet send window, the packet of window specified quantity is sent to downstream node.
9. method according to claim 7 is characterized in that, the step of the said utilance matching system overload class that said basis gets access to comprises:
Carry out the overload class assignment according to said utilance for each processor;
Calculate and the matching system overload class according to the overload class value.
10. method according to claim 9 is characterized in that, said step according to overload class value matching system overload class specifically comprises:
Said overload class value summation and coupling system disposal ability overload historic state to all processors carry out recursive operation acquisition system processing power overload currency, matching system overload class.
11. method according to claim 7 is characterized in that, also comprises before the said step according to overload class control data bag formation transmission to downstream node:
Packet to sending out to downstream node carries out prioritization.
12. method according to claim 11 is characterized in that, saidly specifically comprises sending out the step that to downstream node packet carries out prioritization:
The said packet that will trigger paging that will send out is to downstream node carried out protocol analysis and gives priority assignment;
With the said packet that will trigger paging according to priority order put into buffering area and travel through formation, when the user profile of the packet of new insertion buffering area and buffering area data with existing bag is identical, press user profile merging data bag:
Before if the data with existing bag comes new insertion packet, then will newly insert packet and move and be incorporated into the data with existing bag, be incorporated into new insertion packet otherwise the data with existing bag moved.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210078983.1A CN102595497B (en) | 2012-03-22 | 2012-03-22 | The CDMA data service system of automatic alleviation processor overload and method thereof |
| PCT/CN2012/077854 WO2013139097A1 (en) | 2012-03-22 | 2012-06-29 | System and method of cdma data service for easing processor overload automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210078983.1A CN102595497B (en) | 2012-03-22 | 2012-03-22 | The CDMA data service system of automatic alleviation processor overload and method thereof |
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| CN102595497A true CN102595497A (en) | 2012-07-18 |
| CN102595497B CN102595497B (en) | 2016-03-30 |
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| WO (1) | WO2013139097A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103986775A (en) * | 2014-05-27 | 2014-08-13 | 天津七一二通信广播有限公司 | Fault information collecting system based on digital cluster PDT base station |
| CN108990097A (en) * | 2018-09-18 | 2018-12-11 | 奇酷互联网络科技（深圳）有限公司 | Automatically evade the insufficient method of Internet resources, mobile terminal and storage medium |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP7010171B2 (en) * | 2018-08-10 | 2022-01-26 | 日本電信電話株式会社 | Maintenance management system and data processing method |
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- 2012-03-22 CN CN201210078983.1A patent/CN102595497B/en not_active Expired - Fee Related
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| CN108990097B (en) * | 2018-09-18 | 2021-08-31 | 深圳市知赢科技有限公司 | Method, mobile terminal and storage medium for automatically avoiding network resource deficiency |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102595497B (en) | 2016-03-30 |
| WO2013139097A1 (en) | 2013-09-26 |
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