CN101022356A - ABIS interface bandwidth distributing system and method - Google Patents
ABIS interface bandwidth distributing system and method Download PDFInfo
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- CN101022356A CN101022356A CN 200610003131 CN200610003131A CN101022356A CN 101022356 A CN101022356 A CN 101022356A CN 200610003131 CN200610003131 CN 200610003131 CN 200610003131 A CN200610003131 A CN 200610003131A CN 101022356 A CN101022356 A CN 101022356A
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Abstract
A method for distributing bandwidth of ABIS interface includes setting access thresholds for various types of services at operation maintenance center, detecting whether bandwidth utilization rate of ABIS interface to point protocol is over said threshold or not, reporting bandwidth utilization rate over said threshold if it is, setting state bit of service stream access according to said bandwidth utilization rate and said threshold, carrying out bandwidth distribution decision according to service parameter and bandwidth as well as state bit and distributing bandwidth to service stream satisfying with the conditions or otherwise refusing to make distribution.
Description
Technical field
The present invention relates to a kind of allocated bandwidth system and method, particularly a kind of ABIS interface bandwidth distributing system and method.
Background technology
In the wireless communication system, base station system (BSS) can be divided into two parts, promptly base station controller (Base Station Controller, BSC) and the base station (Base Transceiver Station, BTS).Interface between BSC and the BTS is called the ABIS interface.The logical construction of ABIS interface as shown in Figure 1.
The transmission medium of ABIS interface is a keystone resources, restriction for cost and engineering, the ABIS interface can not be laid rich transfer resource, therefore how to improve the utilance of transfer resource, and the QoS (Quality of Service, service quality) that guarantees miscellaneous service on the ABIS interface is the key technology in the system.
Mobile communication system does not generally manage the ABIS interface band width resource at present, perhaps only simply manages.But if the ABIS interface bandwidth is not managed, the bandwidth request of all Business Streams all will be satisfied so, can cause ABIS interface overload, thereby can not satisfy the service quality of some key businesses, and the phenomenon of chain rupture appears in more serious meeting.
The ABIS interface bandwidth is carried out simple management, and common practices is, supposes that Business Stream takies fixing bandwidth, sees when distributing bandwidth whether remaining bandwidth satisfies, and inserts if satisfy then at every turn, otherwise refusal.Deficiency below this method exists: the one, bandwidth that can not be different according to the different flexible allocation of Business Stream qos parameter only is applicable to the situation that type of service is single and occupied bandwidth is fixing; The 2nd, can not control according to the actual flow situation of ABIS interface, the too much professional of low priority might appear, and the situation that high-priority service can't insert.
Summary of the invention
Technical problem solved by the invention is to provide a kind of ABIS interface bandwidth distributing system and method, with the qos parameter that reaches according to Business Stream is the different bandwidth of traffic flow assignment, and binding site end-to-end protocol (EEP) (PPP, Point-to-Point Protocol) actual bandwidth of link utilizes situation to carry out allocated bandwidth, thereby improves the utilization ratio of ABIS interface bandwidth.
For solving the problems of the technologies described above, the invention provides a kind of ABIS interface bandwidth distributing system and method, native system comprises: operation maintenance center's parameter is provided with module, ppp link traffic monitoring module, ppp link state management module, Business Stream bandwidth estimation module, ppp link Bandwidth Management module and allocated bandwidth judging module, wherein:
Operation maintenance center's parameter is provided with module, is used to be provided with the access thresholding of all kinds business;
Ppp link traffic monitoring module is used for regularly detecting each ppp link bandwidth availability ratio of ABIS interface and whether crosses each service access thresholding that operation maintenance center's parameter is provided with the module setting.If bandwidth availability ratio is crossed the service access thresholding, the bandwidth availability ratio that then will cross behind the thresholding reports the ppp link state management module;
The ppp link state management module is used for the bandwidth availability ratio and the service access threshold value that report according to ABIS interface ppp link, and the state that ppp link is allowed to insert identifies;
Business Stream bandwidth estimation module is used for the QoS parameter according to Business Stream, needs the bandwidth of distributing for the Business Stream estimation;
Ppp link Bandwidth Management module is used for the bandwidth of each ppp link is managed, statistics remaining bandwidth situation.
The allocated bandwidth judging module, according to the mode bit and the remaining bandwidth situation of ABIS interface ppp link, the bandwidth that needs to distribute by the Business Stream estimation is the traffic flow assignment bandwidth.
Described ppp link Bandwidth Management module can be after becoming distribution of work bandwidth, and ppp link is write down the bandwidth that utilized bandwidth field adds distribution, after successfully discharging the Business Stream bandwidth, the utilized bandwidth of ppp link record deducted the bandwidth of release.
Described operation maintenance center parameter is provided with module, according to the Business Stream classification service access thresholding is provided with, described Business Stream classification can be: active authorization service class (Unsolicited GrantService, UGS), and the real time polling service class (Real-time Polling Service, rtPS), non real-time poll services class (Non-real-time Polling Service, nrtPS), and the best effort service class (BestEffort, BE).
Described ppp link state management module, can be according to the bandwidth availability ratio of receiving the ppp link that ppp link traffic monitoring module reports, this bandwidth availability ratio and service access threshold value are compared, if bandwidth availability ratio, then is provided with the mode bit of this ppp link more than or equal to the access thresholding of certain business for not allowing the type service access; If bandwidth availability ratio is less than the service access thresholding, then mode bit is set to allow the type service access.
Described operation maintenance center parameter is provided with module, and the minimum reservation bandwidth of bandwidth estimation coefficient, payload coefficient and BE business can further be set;
Described Business Stream bandwidth estimation module for the UGS business, uses the maximum speed that continues to be the traffic flow assignment bandwidth, again with this bandwidth divided by the payload coefficient; For rtPS and nrtPS business, distribute the computational methods of bandwidth as follows: at its maximum rate is MaxRate, minimum-rate is MinRate, when the bandwidth estimation coefficient that the maximum rate of OMC operation maintenance center configuration accounts for is Max_Ratio, bandwidth BW _ the Payload=MaxRate of this traffic assignments * Max_Ratio+MinRate * (1-Max_Ratio), again with this bandwidth divided by the payload coefficient; For the BE business, in operation maintenance center a minimum reservation bandwidth is set, be used for being BE traffic assignments bandwidth.
Described bandwidth estimation coefficient can be maximum speed or the shared ratio of minimum reserved rate of continuing of Business Stream.
Described allocated bandwidth judging module, the bandwidth of utilized bandwidth estimation block estimation, and, from the ppp link that allows this service access, select remaining bandwidth maximum and remaining bandwidth ppp link greater than the estimation bandwidth according to the Link State position that the ppp link state management module is safeguarded.
Describedly selecting according to remaining bandwidth, is before the allocated bandwidth judgement, and the allocated bandwidth judging module is to the remaining bandwidth situation of ppp link Bandwidth Management module inquiry ppp link; And after the traffic flow assignment bandwidth, allocated bandwidth judging module notice ppp link administration module upgrades the remaining bandwidth of ppp link.
The present invention also provides a kind of ABIS interface bandwidth distribution method, it is characterized in that, comprises the steps:
Step 1, the service access thresholding of all types of business is set by operation maintenance center;
Step 2, regularly detect each ppp link bandwidth availability ratio of ABIS interface and whether cross the service access thresholding that operation maintenance center's parameter is provided with, if bandwidth availability ratio is crossed the service access thresholding, the bandwidth availability ratio that then will cross behind the thresholding reports;
Step 3, the bandwidth availability ratio and the service access threshold value that report according to ABIS interface ppp link, the state that this ppp link is allowed to insert identifies;
Step 4, the bandwidth of each ppp link is managed statistics remaining bandwidth situation;
Step 5, according to the QoS parameter of Business Stream, be that the Business Stream estimation needs the bandwidth of distributing;
Step 6, the remaining bandwidth situation according to ABIS interface ppp link, ppp link mode bit, the bandwidth that needs to distribute by the Business Stream estimation is the traffic flow assignment bandwidth.
The present invention may further include following steps:
Step 7, after becoming distribution of work bandwidth, ppp link is write down the bandwidth that utilized bandwidth field adds distribution, after successfully discharging the Business Stream bandwidth, the utilized bandwidth of ppp link record is deducted the bandwidth of release.
By operation maintenance center the service access thresholding being set described in the described step 1 is, the service access thresholding is provided with according to class of service by operation maintenance center, described class of service can be: initiatively authorization service class, real time polling service class, non real-time poll services class and best effort service class.
Described step 3 can may further comprise the steps:
According to the bandwidth availability ratio of the ppp link that reports, this bandwidth availability ratio and each service access threshold value are compared, if bandwidth availability ratio, then is provided with the mode bit of this ppp link more than or equal to the access thresholding of certain business for not allowing the type service access; If bandwidth availability ratio, then is provided with mode bit less than the access thresholding of certain business for allowing the type service access.
Described step 5 may further include following steps:
The minimum reservation bandwidth of bandwidth estimation coefficient, payload coefficient and BE business is set by operation maintenance center;
For the UGS business, use the maximum speed that continues to be the traffic flow assignment bandwidth, again with this bandwidth divided by the payload coefficient; Professional and the nrtPS business for rtPS, distribute the computational methods of bandwidth as follows: at its maximum rate is MaxRate, minimum-rate is MinRate, when the bandwidth estimation coefficient that the maximum rate of OMC operation maintenance center configuration accounts for is Max_Ratio, the bandwidth BW _ Payload=MaxRate of this traffic assignments * Max_Ratio+MinRate * (1-Max_Ratio); Again with this bandwidth divided by the payload coefficient; For the BE business, distribute bandwidth for it with the minimum reservation bandwidth that operation maintenance center is provided with.
Described bandwidth estimation coefficient can be maximum speed or the shared ratio of minimum reserved rate of continuing of Business Stream.
Described step 6 can comprise the steps:
According to the mode bit of ppp link, from the ppp link that allows this service access, select remaining bandwidth maximum and remaining bandwidth ppp link greater than the estimation bandwidth;
On the ppp link of selecting, be the traffic flow assignment bandwidth,, then refuse the access of Business Stream if there is not the ppp link that satisfies condition.
By adopting the present invention, can guarantee the QoS demand of each Business Stream, saved bandwidth, improved the utilization ratio of ABIS interface band width resource greatly.
Description of drawings
Fig. 1 is the logical schematic of ABIS interface;
Fig. 2 is the structural representation of system described in the embodiment;
Fig. 3 is the allocation flow of allocated bandwidth judging module described in an embodiment schematic diagram;
Fig. 4 is the embodiment schematic flow sheet of ABIS interface bandwidth distribution method described in the present invention.
Embodiment
The transmission medium of ABIS interface can be made up of many E1 lines.Every E1 has 32 time slots.For the ease of management, when the present invention specifically implements, at first the some time slots among the E1 are formed a HDLC (High-level data link control, High-Level Data Link Control) link, form a PPP (Point-to-Point Protocol, peer-peer protocol) link by the binding of one or more HDLC links again.The bandwidth of a time slot is 64k in E1, can calculate the total available bandwidth of ppp link according to the time slot sum that is had.The ABIS interface can have many ppp links, and the bandwidth sum of each ppp link is the total bandwidth of ABIS interface.Distribute the ABIS interface bandwidth, on certain available ppp link, carry out allocated bandwidth exactly in essence for Business Stream.
Below in conjunction with specific embodiment the present invention is described in further detail again.
Fig. 2 is the structural representation of system among the embodiment, and as shown in Figure 2, native system is according to flow situation on current each ppp link of ABIS interface, and the remaining bandwidth situation of each ppp link is carried out allocated bandwidth.Mainly be made up of following several modules: the OMC parameter is provided with module 205, ppp link traffic monitoring module 206, ppp link state management module 203, Business Stream bandwidth estimation module 202, ppp link Bandwidth Management module 204 and allocated bandwidth judging module 201.Below these modules are introduced respectively:
The OMC parameter is provided with module 205, and the bandwidth estimation coefficient of Business Stream is set, and the access thresholding of all kinds business.The bandwidth estimation coefficient is mainly used in Business Stream bandwidth estimation module 202.The access thresholding of Business Stream is mainly used in ppp link traffic monitoring module 206 and ppp link state management module 203.The access thresholding of miscellaneous service can be got a fixed value, but for the effective control to Business Stream, can carry out flexible configuration at OMC according to the flow situation of each time period miscellaneous service.The effect that inserts thresholding is when the bandwidth availability ratio on the ABIS interface ppp link during greater than the access thresholding of certain business, the access of refusal the type business on this ppp link, thus the business of high priority can preferentially insert assurance bandwidth anxiety the time.Be exemplified below: the access thresholding that the UGS business is set is 70%, then when the bandwidth availability ratio of ppp link forward direction (or reverse) surpasses 70%, will refuse the access of forward direction (or oppositely) UGS business on this ppp link.
Ppp link traffic monitoring module 206 regularly detects each ppp link forward direction of ABIS interface and inverse bandwidth utilance.If bandwidth availability ratio is crossed the access thresholding of certain business, then the bandwidth availability ratio that will cross behind the thresholding of ppp link traffic monitoring module 206 reports ppp link state management module 203.Cross thresholding and comprise two kinds of situations: bandwidth availability ratio is from being lower than threshold value to being higher than threshold value and bandwidth availability ratio from being higher than threshold value to being lower than threshold value.
Ppp link state management module 203 is safeguarded a mode bit for each ppp link, is used for identifying this ppp link at forward direction with oppositely, and whether all kinds business allows to insert.This mode bit is initially set to and allows to insert, and upgrades according to the bandwidth availability ratio of ABIS interface ppp link and the access threshold value of each business.After ppp link state management module 203 is received forward direction (perhaps reverse) bandwidth availability ratio of certain ppp link that ppp link traffic monitoring module 206 reports, the access threshold value of this bandwidth availability ratio and each business is compared, if bandwidth availability ratio is more than or equal to the access thresholding of certain business, then state management module 203 is provided with the mode bit of this ppp link, is designated this business that does not allow to insert forward direction (perhaps reverse); If bandwidth availability ratio is less than the access thresholding of certain business, then mode bit is set to allow the access of the type business.
Business Stream bandwidth estimation module 202 according to the qos parameter of Business Stream, needs the bandwidth of distribution for the Business Stream estimation.
802.16 in the system, can sort out according to the qos parameter of Business Stream.Can and oppositely separately consider the forward direction of Business Stream, also can not separatedly consider.In 802.16 agreements, business is divided into: UGS (unsolicited grant service, the active authorization service), rtPS (real-time pollingservice, the real time polling service), nrtPS (non-real-time polling service, the non real-time poll services), four kinds of business of BE (best effort, best effort service).These business all have direction, in order more effectively to utilize bandwidth, forward direction and reverse e1 resource separately can be considered.
Because every kind of Business Stream has specific qos parameter, distributing relevant parameter with the ABIS interface bandwidth is minimum reserved rate (Minimum Reserved Traffic Rate) and the maximum speed (Maximum Sustained Traffic Rate) that continues.For admission service stream as much as possible, can use the minimum reserved rate of Business Stream to distribute bandwidth.But underaction like this, some professional minimum reserved rate of using can not meet the demands.Therefore, pressing following method in the embodiment of the invention is each traffic flow assignment bandwidth:
For the UGS business, use the maximum speed that continues to be traffic flow assignment bandwidth (its maximum lasting speed and minimum reserved rate equate);
For nrtPS and rtPS business, use between minimum reserved rate and maximum certain speed that continues between the speed and be the traffic flow assignment bandwidth, need each professional maximum speed or the shared ratio of minimum reserved rate, i.e. bandwidth estimation coefficient of continuing of module 205 configurations be set in the OMC parameter; Distribute the computational methods of bandwidth as follows: to suppose the rtPS business, its maximum rate is MaxRate, minimum-rate is MinRate, the bandwidth estimation coefficient that the maximum rate of OMC configuration accounts for is rtPS_Max_Ratio, then is the bandwidth BW _ RTPS_Payload=MaxRate*rtPS_Max_Ratio+MinRate* (1-rtPS_Max_Ratio) of this rtPS traffic assignments.The similar calculating of nrtPS;
For the BE business, there is not minimum reserved rate, but in order to guarantee for the professional certain bandwidth of the BE that has admitted, be unlikely to bandwidth all by non-BE service occupation, also be provided with a minimum reservation bandwidth for the BE business in the present embodiment, with this minimum reservation bandwidth is BE traffic assignments bandwidth, and this value can be provided with module 205 in the OMC parameter according to concrete application scenarios and do corresponding the adjustment.
Because during the payload of Media Stream process ABIS mouth, need through adding the MAC head, the group bag waits operation, extra expense is arranged, thus need be with the bandwidth of calculating above divided by a payload coefficient, and the payload coefficient is provided with module 205 configurations by the OMC parameter, the all types business all can shared this coefficient, divided by the bandwidth that just can really be distributed behind the payload coefficient, for top example, computing formula is: BW=BW_Payload/BW_Payload_Ratio.
Ppp link Bandwidth Management module 204 manages the bandwidth of each ppp link.Each ppp link is represented the operating position of bandwidth with three fields, be respectively the total bandwidth AvailTotalBandWith (forward direction is with oppositely identical) of ppp link, forward direction is utilized bandwidth UsedBandWidth_For, oppositely utilized bandwidth UsedBandWidth_Rev.Can calculate the forward direction remaining bandwidth is AvailTotalBandWith-UsedBandWidth_For, and oppositely remaining bandwidth is AvailTotalBandWith-UsedBandWidth_Rev.After becoming distribution of work bandwidth, the bandwidth that the forward direction or the reverse utilized bandwidth field of ppp link record need be added distribution.Equally, after successfully discharging the Business Stream bandwidth, the bandwidth that the forward direction or the reverse utilized bandwidth of ppp link record need be deducted release.
Allocated bandwidth judging module 201 according to the bandwidth availability ratio of ABIS interface ppp link and the remaining bandwidth situation of ppp link, is the traffic flow assignment bandwidth.This is the key modules that the ABIS interface bandwidth distributes.According to the mode bit of ppp link, from the ppp link that allows this service access, select remaining bandwidth maximum and remaining bandwidth ppp link greater than the estimation bandwidth; On the ppp link of selecting, be the traffic flow assignment bandwidth,, then refuse the access of Business Stream if there is not the ppp link that satisfies condition.
Figure 3 shows that allocated bandwidth judging module allocation flow schematic diagram, as shown in the figure, its workflow is:
Step 300: Business Stream bandwidth estimation module 202 is provided with the bandwidth estimation coefficient that module 205 disposes according to the qos parameter and the OMC parameter of Business Stream, estimates to be the bandwidth of traffic flow assignment;
Step 301: all ppp links of traversal ABIS interface, look for one currently can insert the type business, and the ppp link of remaining bandwidth maximum.If ppp link has traveled through, change step 306; Otherwise continue to judge whether next ppp link satisfies condition, change step 302;
Step 302: judge that current this Business Stream that whether allows of this ppp link inserts.Judge according to the mode bit that ppp link state management module 203 is provided with.If this ppp link does not allow the access of the type Business Stream, change step 301, continue the traversal ppp link; Otherwise change step 303;
Step 303: judge that the remaining bandwidth of this ppp link on the Business Stream direction is whether more than or equal to the bandwidth of step 300 estimation.If do not satisfy, change step 301, continue the traversal ppp link; Otherwise change step 304;
Step 304: whether the remaining bandwidth of judging this ppp link is maximum in the ppp link that satisfies distributive condition that has found, if not, change step 301, continue the traversal ppp link; Otherwise change step 305;
Step 305: this ppp link is labeled as remaining bandwidth maximum in the ppp link that satisfies condition, just on this ppp link, distributes when bandwidth is distributed in the back.Change step 301, continue the traversal ppp link;
Step 306:PPP link traversal is intact, judges whether to find the ppp link that satisfies condition.If do not find, change step 307, the access of refusal Business Stream; If find, change step 308, allow the access of Business Stream, change step 309;
Step 309: be the traffic flow assignment bandwidth on the ppp link of remaining bandwidth maximum, and according to the direction of Business Stream, ppp link Bandwidth Management module 204 adds the bandwidth of distribution with the forward direction (perhaps reverse) of ppp link utilized bandwidth.
Fig. 4 is the embodiment schematic flow sheet of ABIS interface bandwidth distribution method among the present invention, as shown in the figure:
Step 401: Business Stream is sorted out.
For example can sort out according to the qos parameter of Business Stream.Can and oppositely separately consider the forward direction of Business Stream, also can not separatedly consider.In 802.16 agreements, business is divided into: UGS, rtPS, four kinds of business of nrtPS, BE.These business all have direction, in order more effectively to utilize bandwidth, forward direction and reverse e1 resource separately can be considered.
Step 402: be the different access thresholding of dissimilar business settings.
Forward direction and reverse swing door limit value can be provided with respectively, also can be set to same value.The purpose that inserts threshold value is set is, guarantees professional preferential access of high priority when bandwidth is nervous.When forward direction (perhaps reverse) the actual bandwidth utilance of ppp link during greater than the access thresholding of this direction of certain business, the access of ppp link refusal forward direction (perhaps reverse) the type business.
Step 403: the forward direction and the inverse bandwidth utilance that regularly detect ABIS interface ppp link, and the access threshold value of forward direction (perhaps reverse) bandwidth availability ratio of ppp link and each business compared, judge forward direction and the reverse access that allows which business respectively on current this ppp link, upgrade the ppp link mode bit according to testing result.
Step 404: be the traffic flow assignment bandwidth.
At first according to the qos parameter of Business Stream and the definite bandwidth of distributing of coefficient correlation of OMC (Operation Maintenance Center, operation maintenance center) configuration; Then, from the ppp link that allows this service access, select remaining bandwidth maximum and remaining bandwidth ppp link greater than the estimation bandwidth according to the mode bit of ppp link; Last is the traffic flow assignment bandwidth on the ppp link of selecting.If there is not the ppp link that satisfies condition, then refuse the access of Business Stream.
Step 405: become distribution of work bandwidth, perhaps successfully discharge bandwidth after, according to the direction of Business Stream, upgrade the bandwidth usage on the ppp link respective direction.
It more than is preferred embodiment of the present invention.By adopting the present invention, can guarantee the QoS demand of each Business Stream, carry out allocated bandwidth by the qos parameter of Business Stream, saved bandwidth, improved the utilization ratio of ABIS interface band width resource greatly.Because the speed of Business Stream all is dynamic change, the present invention also monitors the actual flow situation of ABIS interface in real time, and in view of the above allocated bandwidth is controlled, more the actual conditions of compliance with system bandwidth use.
Claims (14)
1, a kind of ABIS interface bandwidth distributing system, it is characterized in that, comprise: operation maintenance center's parameter is provided with module, peer-peer protocol link flow monitoring module, peer-peer protocol Link State administration module, Business Stream bandwidth estimation module, peer-peer protocol link bandwidth administration module and allocated bandwidth judging module, wherein:
Operation maintenance center's parameter is provided with module, is used to be provided with the service access thresholding of Business Stream;
Peer-peer protocol link flow monitoring module, be used for regularly detecting each peer-peer protocol link bandwidth utilization rate of ABIS interface and whether cross the service access thresholding that operation maintenance center's parameter is provided with the module setting, if bandwidth availability ratio is crossed the service access thresholding, the bandwidth availability ratio that then will cross behind the thresholding reports peer-peer protocol Link State administration module;
Peer-peer protocol Link State administration module, the bandwidth availability ratio and the operation maintenance center's parameter that are used for reporting according to ABIS point of interface end-to-end protocol (EEP) link flow monitoring module are provided with the service access threshold value that module is provided with, and the state that the peer-peer protocol link is allowed to insert identifies;
Business Stream bandwidth estimation module is used for the QoS parameter according to Business Stream, needs the bandwidth of distributing for the Business Stream estimation;
Peer-peer protocol link bandwidth administration module is used for the bandwidth of each peer-peer protocol link is managed, statistics remaining bandwidth situation.
The allocated bandwidth judging module is used for according to the remaining bandwidth situation of ABIS point of interface end-to-end protocol (EEP) link and the mode bit of peer-peer protocol link, and the bandwidth of estimating by the Business Stream estimation block is the traffic flow assignment bandwidth.
2, the system as claimed in claim 1, it is characterized in that, described peer-peer protocol link bandwidth administration module, after the allocated bandwidth judging module becomes distribution of work bandwidth, the peer-peer protocol link is write down the bandwidth that utilized bandwidth field adds distribution, after successfully discharging the Business Stream bandwidth, the utilized bandwidth of peer-peer protocol link record is deducted the bandwidth of release.
3, the system as claimed in claim 1, it is characterized in that, described operation maintenance center parameter is provided with module, according to the Business Stream classification service access thresholding is provided with, described Business Stream classification can be: active authorization service class, real time polling service class, non real-time poll services class and best effort service class.
4, the system as claimed in claim 1, it is characterized in that, described peer-peer protocol Link State administration module, be according to the bandwidth availability ratio of receiving the peer-peer protocol link that peer-peer protocol link flow monitoring module reports, this bandwidth availability ratio and service access threshold value are compared, if bandwidth availability ratio, then is provided with the mode bit of this peer-peer protocol link more than or equal to the access thresholding of certain business for not allowing the type service access; If bandwidth availability ratio, then is provided with the mode bit of this peer-peer protocol link less than the service access thresholding for allowing the type service access.
5, the system as claimed in claim 1 is characterized in that, wherein:
Described operation maintenance center parameter is provided with module, further is provided for being estimated as the minimum reservation bandwidth of bandwidth estimation coefficient, payload coefficient and the best effort service business of Business Stream original allocation;
Described Business Stream bandwidth estimation module for unsolicited grant service, uses the maximum speed that continues to be the traffic flow assignment bandwidth, again with this bandwidth divided by the payload coefficient; For non-real-time polling service and real-time polling service, distribute the computational methods of bandwidth as follows: at its maximum rate is MaxRate, minimum-rate is MinRate, when the bandwidth estimation coefficient that the maximum rate of operation maintenance center's configuration accounts for is Max_Ratio, the bandwidth BW Payload=MaxRate of this traffic assignments * Max_Ratio+MinRate * (1-Max_Ratio), again with this bandwidth divided by the payload coefficient; For the best endeavors business, distribute bandwidth for it with the minimum reservation bandwidth of operation maintenance center's configuration.
6, system as claimed in claim 5 is characterized in that, described bandwidth estimation coefficient is maximum speed or the shared ratio of minimum reserved rate of continuing of Business Stream.
7, the system as claimed in claim 1, it is characterized in that, the bandwidth of described allocated bandwidth judging module utilized bandwidth estimation block estimation, according to the Link State position that peer-peer protocol Link State administration module provides, from the peer-peer protocol link that allows this service access, select remaining bandwidth maximum and remaining bandwidth peer-peer protocol link greater than the estimation bandwidth; On the peer-peer protocol link of selecting, be the traffic flow assignment bandwidth,, then refuse the access of Business Stream if there is not the peer-peer protocol link that satisfies condition.
8, a kind of ABIS interface bandwidth distribution method is characterized in that, comprises the steps:
Step 1, the service access thresholding of Business Stream is set by operation maintenance center;
Step 2, timing detect each peer-peer protocol link bandwidth utilization rate of ABIS interface and whether cross the service access thresholding that operation maintenance center's parameter is provided with the module setting, if bandwidth availability ratio is crossed the service access thresholding, the bandwidth availability ratio that then will cross behind the thresholding reports;
Step 3, the bandwidth availability ratio that reports according to ABIS point of interface end-to-end protocol (EEP) link and the access threshold value of Business Stream, the state that the peer-peer protocol link is allowed to insert identifies;
Step 4, the bandwidth of each peer-peer protocol link is managed statistics remaining bandwidth situation;
Step 5, according to the QoS parameter of Business Stream, be that the Business Stream estimation needs the bandwidth of distributing;
Step 6, according to the remaining bandwidth situation and the peer-peer protocol Link State position of ABIS point of interface end-to-end protocol (EEP) link, be the traffic flow assignment bandwidth by the bandwidth of Business Stream estimation block estimation.
9, method as claimed in claim 8 is characterized in that, further comprises the steps:
Step 7, after becoming distribution of work bandwidth, the peer-peer protocol link is write down the bandwidth that utilized bandwidth field adds distribution, after successfully discharging the Business Stream bandwidth, the utilized bandwidth of peer-peer protocol link record is deducted the bandwidth of release.
10, method as claimed in claim 8, it is characterized in that, by operation maintenance center the service access thresholding being set described in the step 1 is, the service access thresholding is provided with according to the Business Stream classification by operation maintenance center, described Business Stream classification is: initiatively authorization service class, real time polling service class, non real-time poll services class and best effort service class.
11, method as claimed in claim 8 is characterized in that, described step 3 may further comprise the steps:
Bandwidth availability ratio according to the peer-peer protocol link that reports, this bandwidth availability ratio and service access threshold value are compared, if bandwidth availability ratio, then is provided with the mode bit of this peer-peer protocol link more than or equal to the access thresholding of certain business for not allowing the access of the type business; If bandwidth availability ratio is less than the access thresholding of certain business, then the mode bit of set-point end-to-end protocol (EEP) link is for allowing the access of the type business.
12, method as claimed in claim 8 is characterized in that, described step 5 further comprises the steps:
The minimum reservation bandwidth of bandwidth estimation coefficient, payload coefficient and best effort service business is set by operation maintenance center;
For unsolicited grant service, use the maximum speed that continues to be the traffic flow assignment bandwidth, again with this bandwidth divided by the payload coefficient;
For non-real-time polling service and real-time polling service, distribute the computational methods of bandwidth as follows: at its maximum rate is MaxRate, minimum-rate is MinRate, when the bandwidth estimation coefficient that the maximum rate of operation maintenance center's configuration accounts for is Max_Ratio, the bandwidth BW _ Payload=MaxRate of this traffic assignments * Max_Ratio+MinRate * (1-Max_Ratio); Again with this bandwidth divided by the payload coefficient;
For the best endeavors business, distribute bandwidth for it with the minimum reservation bandwidth of operation maintenance center's configuration.
13, method as claimed in claim 12 is characterized in that, described bandwidth estimation coefficient is maximum speed or the shared ratio of minimum reserved rate of continuing of Business Stream.
14, method as claimed in claim 8 is characterized in that, described step 6 comprises the steps:
According to the mode bit of peer-peer protocol link, from the peer-peer protocol link that allows this service access, select remaining bandwidth maximum and remaining bandwidth peer-peer protocol link greater than the estimation bandwidth;
On the peer-peer protocol link of selecting, be the traffic flow assignment bandwidth,, then refuse the access of Business Stream if there is not the peer-peer protocol link that satisfies condition.
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| CN101808033A (en) * | 2010-03-09 | 2010-08-18 | 杭州华三通信技术有限公司 | Method and apparatus for allocating reservation bandwidth of traffic |
| WO2010142094A1 (en) * | 2009-06-12 | 2010-12-16 | 中兴通讯股份有限公司 | Method and system for application layer link control |
| CN101516111B (en) * | 2008-02-21 | 2011-04-06 | 中兴通讯股份有限公司 | Resource distribution method and system |
| CN101184340B (en) * | 2007-12-27 | 2011-12-07 | 中兴通讯股份有限公司 | Abis resource full dynamic allocation based base station ring networking method |
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| CN103326951B (en) * | 2013-06-25 | 2017-02-08 | 广东电网公司佛山供电局 | bandwidth control method and device for electric power communication network |
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