CN105306269A - QoS guarantee method for achieving distribution network automation service - Google Patents

QoS guarantee method for achieving distribution network automation service Download PDF

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Publication number
CN105306269A
CN105306269A CN201510711690.6A CN201510711690A CN105306269A CN 105306269 A CN105306269 A CN 105306269A CN 201510711690 A CN201510711690 A CN 201510711690A CN 105306269 A CN105306269 A CN 105306269A
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China
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service
type
automation
distribution
power distribution
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CN201510711690.6A
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Chinese (zh)
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CN105306269B (en
Inventor
邵华
樊会丛
赵建华
高立坡
朱士加
林榕
孙轶良
申永鹏
李树水
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国家电网公司
国网河北省电力公司经济技术研究院
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance or administration or management of packet switching networks
    • H04L41/50Network service management, i.e. ensuring proper service fulfillment according to an agreement or contract between two parties, e.g. between an IT-provider and a customer
    • H04L41/5019Ensuring SLA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance or administration or management of packet switching networks
    • H04L41/50Network service management, i.e. ensuring proper service fulfillment according to an agreement or contract between two parties, e.g. between an IT-provider and a customer
    • H04L41/5041Service implementation
    • H04L41/5051Service on demand, i.e. services are defined and provided in real time as requested by the user
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/18Closed circuit television systems, i.e. systems in which the signal is not broadcast

Abstract

The invention provides a QoS guarantee method for achieving distribution network automation service. The method comprises the following steps: receiving a service guarantee request initiated by the distribution network automation service, wherein the service guarantee request comprises a service type, an evaluation index corresponding to the service type and a QoS target demand corresponding to the service type; establishing a linear space corresponding to the service type, and transforming the linear space to obtain a standard linear space corresponding to the service type; establishing a network capacity curved surface of a broadband wireless public network and a QoS demand vector corresponding to the service type; and if the QoS demand vector corresponding to the service type is beyond the range of the network capacity curved surface corresponding to the service type, adjusting the resource configuration of the broadband wireless public network to satisfy the QoS target demand corresponding to the service type. The method is used for providing QoS guarantee for 10Kv and lower middle-lower voltage intelligent distribution network communication servers through the wireless broadband of the public network.

Description

Realize distribution automation QoS of survice support method
Technical field
The present invention relates to wireless communication field, particularly relate to one and realize distribution automation QoS of survice support method.
Background technology
Along with improving constantly of Social Informatization Level, build with " informationization, automation, interactive " for feature, the intelligent grid system covering the links such as generating, transmission of electricity, power transformation, distribution, electricity consumption, scheduling has become the inexorable trend of future development.The operation of power grid integrated becomes new trend and the direction of power network development, and traditional dispatching of power netwoks and distribution need towards realizing dispatching, monitoring, operate target transition that is integrated, intensive, lean.The distribution communication technology is then one of key technology of distribution automation management system.
Intelligent power distribution Network Communication mainly contains these three kinds of communication modes of light communication, carrier wave power line for communication and public network wireless broadband communication at present.First, optical fiber telecommunications system is because reliability is high and it is insensitive to electromagnetic interference, capacity is large, be suitable for the communication as 110kV/35kV transformer station to 10kV power distribution room/switch room, and for the not high 10kv of required communication rate and following low and medium voltage distribution network, then because optical fiber is expensive and be not easy to multiplexing and multiple connection, then should not adopt.Secondly, power line carrier communication is due to quick construction, and cost is lower, basic Maintenance free, compares the concrete condition being suitable for China's upgrading urban and rural power grids, but speed, reliability of its transmission and still have larger dispute at present in the ability that power supply interrupted district normally works.In addition, along with improving constantly of power technology development level, there is in intelligent grid differentiated service quality (QualityofService, QoS) the power distribution automation business of demand is (as power distribution automation business, metering automation business, video monitoring service) constantly universal, make traditional power line carrier can not adapt to this type of business demand very well.Finally, public network wireless broadband communication does not rely on electricity grid network framework, wide coverage, has the advantages such as band is roomy, long transmission distance, non line of sight transmission simultaneously.At present in Southern Power Grid Company, low-voltage collecting meter reading business generally adopts public network wireless broadband communication technology.But existing public network wireless broad band technology all cannot provide specific aim guarantee for power industry.Specific as follows:
(1) specific aim is lacked.Existing public network WiMAX QoS security mechanism there is no the special consideration for power distribution automation business.Due to core business and priority support object that power system service is not public network operator, at present, as shown in Table 1, the QoS security system of third generation partner program tissue (3GPP) specification is mainly from real-time index (time delay), and reliability index (packet loss) and data rate index (bearer types) three angles consider the QoS of business.And present stage " 12 " distribution automation business is except weighing above-mentioned three indexs, there is clear and definite demand too for fail safe and channel connection rate.In addition, the lay particular stress on degree business of concrete distribution automation business to the investigation of each QoS index is different, and the QoS security system of 3GPP specification regards as equal to each QoS index at present.Therefore, the QoS security system of current 3GPP specification is also invariably pointed.
Table one
(2) extensibility is lacked.First stage " 12 " distribution automation business mainly comprises power distribution automation, metering automation business and a small amount of video monitor business.And follow-up distribution automation business also will include distribution line pilot protection, on a large scale video monitoring, the indoor business such as business, monitoring of equipment of user.The each own respective QoS demand of these business, the input of video monitoring service on a large scale, the follow-up investigation needing the QoS index such as increase delay variation.But the QoS security system of current 3GPP specification also has extensibility invariably.
Generally speaking, consider from integration requirements such as construction cost, difficulty of construction, construction period, communication support, QoS guarantee, fail safe, ease for maintenance, traditional optical fiber and carrier wave power line transmission are not well positioned to meet the requirement of 10kv and the development of following low and medium voltage distribution network.And consider from specific aim, extensibility angle, existing public network wireless broadband communication also cannot provide complete QoS security system for power industry.
Summary of the invention
For defect of the prior art, the invention provides one and realize distribution automation QoS of survice support method, for realizing by public network WiMAX as 10kV and following mesolow intelligent distribution network communication traffic provide QoS to ensure.
The invention provides one and realize distribution automation QoS of survice support method, comprising:
Receive the Service assurance application that distribution automation business is initiated, described Service assurance application comprises evaluation index corresponding to type of service, type of service and QoS target requirement corresponding to type of service;
The evaluation index corresponding according to described type of service, sets up the linear space that type of service is corresponding;
Linear space corresponding for described type of service is converted, obtains the normal linearity subspace that type of service is corresponding;
In the normal linearity subspace that described type of service is corresponding, according to the resource distribution of broadband wireless public network, set up the network capabilities curved surface of broadband wireless public network;
In the normal linearity subspace that described type of service is corresponding, the QoS target requirement corresponding according to described type of service, sets up the QoS demand vector that type of service is corresponding;
If QoS demand vector corresponding to type of service drop on network capabilities curved surface corresponding to this type of service scope outside, then by the resource distribution of adjustment broadband wireless public network to meet QoS target requirement corresponding to type of service.
Preferably, described type of service comprises power distribution automation business, metering automation business or distribution video monitoring service;
The evaluation index that described type of service is corresponding, comprising:
Evaluation index corresponding to power distribution automation business comprises power distribution automation data rate, power distribution automation time delay, the power distribution automation error rate;
Evaluation index corresponding to metering automation business comprises metering automation data rate, channel connection speed, the metering automation error rate;
The evaluation index that distribution video monitoring service is corresponding comprises distribution video monitoring data speed, distribution video monitoring time delay.
Preferably, the described evaluation index corresponding according to type of service, set up the linear space that type of service is corresponding, comprising:
If type of service is power distribution automation business, the real number field linear space that to set up with power distribution automation data rate, power distribution automation time delay, the power distribution automation error rate be coordinate base;
If type of service is metering automation business, the real number field linear space that to set up with metering automation data rate, channel connection speed, the metering automation error rate be coordinate base;
If type of service is distribution video monitoring service, the real number field two-dimensional linear space that to set up with distribution video monitoring data speed, distribution video monitoring time delay be coordinate base.
Preferably, described linear space corresponding for type of service to be converted, obtains the normal linearity subspace that type of service is corresponding, comprising:
The linear space corresponding to type of service is normalized conversion, obtains the normal linearity space that type of service is corresponding;
Linear transformation is carried out in the normal linearity space corresponding to type of service, obtains the normal linearity subspace that type of service is corresponding.
Preferably, the described linear space corresponding to type of service is normalized conversion, obtains the normal linearity space that this type of service is corresponding, comprising:
If type of service is power distribution automation business, adopt logarithmic function to be normalized conversion to power distribution automation data rate, adopt arctan function to be normalized conversion to power distribution automation time delay and the power distribution automation error rate;
If type of service is metering automation business, adopt logarithmic function to be normalized conversion to metering automation data rate and channel connection speed, adopt arctan function to be normalized conversion to the metering automation error rate;
If type of service is distribution video monitoring service, adopt logarithmic function to be normalized conversion to distribution video monitoring data speed, adopt arctan function to be normalized conversion to distribution video monitoring time delay.
Preferably, linear transformation is carried out in the described normal linearity space corresponding to type of service, obtains the normal linearity subspace that type of service is corresponding, comprising:
If type of service is power distribution automation business, according to the preference of power distribution automation business to power distribution automation data rate, power distribution automation time delay and the power distribution automation error rate, coordinate replacement is carried out to coordinate base;
If type of service is metering automation business, according to the preference of metering automation business to metering automation data rate, channel connection speed and the metering automation error rate, coordinate replacement is carried out to coordinate base;
If type of service is distribution video monitoring service, according to the preference of distribution video monitoring service to distribution video monitoring data speed, distribution video monitoring time delay, coordinate replacement is carried out to coordinate base;
Described preference refers to the weight formed based on multiple attributive decision making method, and described multiple attributive decision making method comprises analytic hierarchy process (AHP), gray scale correlation fractal dimension or ideal point method.
Preferably, the resource distribution of described broadband wireless public network comprises grid reference configuration and network tunable configuration;
Described grid reference is configured to the physical layer communication technology that broadband wireless public network adopts, and comprises clean culture, enhanced multicast, enhancement mode multiple antennas, enhanced collaborative multicast communication, enhanced relay, enhancement mode carrier aggregation, enhancement mode interference mitigation technology;
Described network tunable is configured to the network parameters of broadband wireless public network by radio resource control layer signal deployment, comprise channel width and transmitting power that physical layer keeps for distribution automation business, the maximum retransmission of physical layer mixed self-adapting retransmission process, the modulation coding mode of physical layer, the dispatching priority of media access control layer, the maximum retransmission of the adaptive retransmission process of wireless chain control layer, the distribution of radio resource and maintenance priority.
Preferably, in the normal linearity subspace that place type of service is corresponding, according to the resource distribution of broadband wireless public network, set up the network capabilities curved surface of broadband wireless public network, comprising:
If type of service is power distribution automation business, in the normal linearity subspace that power distribution automation business is corresponding, the grid reference being supplied to power distribution automation business with broadband wireless public network configure can provide power distribution automation data rate, power distribution automation time delay, the power distribution automation error rate is for the center of circle, the network tunable being supplied to power distribution automation business with broadband wireless public network configure can provide power distribution automation data rate, power distribution automation time delay, the power distribution automation error rate for semiaxis, set up the network capabilities curved surface that power distribution automation business is corresponding;
If type of service is metering automation business, in the normal linearity subspace that metering automation business is corresponding, the grid reference being supplied to metering automation business with broadband wireless public network configure can provide metering automation data rate, channel connection speed, the metering automation error rate is for the center of circle, the network tunable being supplied to metering automation business with broadband wireless public network configure can provide metering automation data rate, channel connection speed, the metering automation error rate for semiaxis, set up the network capabilities curved surface that metering automation business is corresponding;
If type of service is distribution video monitoring service, in the normal linearity subspace that distribution video monitoring service is corresponding, the grid reference being supplied to distribution video monitoring service with broadband wireless public network configure can provide distribution video monitoring data speed, distribution video monitoring time delay is for the center of circle, the network tunable being supplied to distribution video monitoring service with broadband wireless public network configure can provide distribution video monitoring data speed, distribution video monitoring time delay for semiaxis, set up the network capabilities curved surface that distribution video monitoring service is corresponding.
Preferably, in the described normal linearity subspace corresponding in type of service, the QoS target requirement corresponding according to type of service, set up the QoS demand vector that type of service is corresponding, comprising:
If type of service is power distribution automation business, the QoS target requirement of power distribution automation business is mapped to normal linearity subspace corresponding to power distribution automation business, forms the QoS demand vector of power distribution automation business;
If type of service is metering automation business, the QoS target requirement of metering automation business is mapped to normal linearity subspace corresponding to metering automation business, forms the QoS demand vector of metering automation business;
If type of service is distribution video monitoring service, the QoS target requirement of distribution video monitoring service is mapped to normal linearity subspace corresponding to distribution video monitoring service, forms the QoS demand vector of distribution video monitoring service.
Preferably, if QoS demand vector corresponding to described type of service drop on network capabilities curved surface corresponding to this type of service scope outside, then by the resource distribution of adjustment broadband wireless public network to meet QoS target requirement corresponding to type of service, comprising:
Grid reference configuration in the resource distribution of adjustment broadband wireless public network, the center of circle of the network capabilities curved surface making type of service corresponding changes;
Network tunable configuration in the resource distribution of adjustment broadband wireless public network, the semiaxis of the network capabilities curved surface making type of service corresponding changes;
Repeat the network tunable configuration in the resource distribution of grid reference configuration in the resource distribution of described adjustment broadband wireless public network and described adjustment broadband wireless public network, until within the vectorial scope dropping on network capabilities curved surface corresponding to this type of service of QoS demand corresponding to type of service.
As shown from the above technical solution, the invention provides one and realize distribution automation QoS of survice support method.The method comprises: receive the Service assurance application that distribution automation business is initiated, and described Service assurance application comprises evaluation index corresponding to type of service, type of service and QoS target requirement corresponding to type of service; The evaluation index corresponding according to described type of service, sets up the linear space that type of service is corresponding; Linear space corresponding for described type of service is converted, obtains the normal linearity subspace that type of service is corresponding; In the normal linearity subspace that described type of service is corresponding, according to the resource distribution of broadband wireless public network, set up the network capabilities curved surface of broadband wireless public network; In the normal linearity subspace that described type of service is corresponding, the QoS target requirement corresponding according to described type of service, sets up the QoS demand vector that type of service is corresponding; If QoS demand vector corresponding to type of service drop on network capabilities curved surface corresponding to this type of service scope outside, then by the resource distribution of adjustment broadband wireless public network to meet QoS target requirement corresponding to type of service.The method is used for realizing by public network WiMAX as 10kV and following mesolow intelligent distribution network communication traffic provide QoS to ensure.
Accompanying drawing explanation
In order to be illustrated more clearly in disclosure embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present disclosure, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these figure.
The schematic flow sheet realizing power distribution automation QoS of survice support method that Fig. 1 provides for one embodiment of the invention;
The normal linearity subspace schematic diagram realizing power distribution automation QoS of survice support method that Fig. 2 provides for one embodiment of the invention;
The schematic flow sheet realizing metering automation QoS of survice support method that Fig. 3 provides for one embodiment of the invention;
The normal linearity subspace schematic diagram realizing metering automation QoS of survice support method that Fig. 4 provides for one embodiment of the invention;
The schematic flow sheet realizing distribution video monitoring service QoS assurance that Fig. 5 provides for one embodiment of the invention.
Embodiment
What must be explained is, " electric power secondary system security protection regulation " (Electricity Monitoring Commission 5 command) and " electric power secondary system security protection overall plan " (Electricity Monitoring Commission's [2006] No. 34 literary compositions) specify that " remote control " class business in power distribution automation business must be carried by power communication private network, the unavailable public network network carrying.
Distribution automation business mainly comprises power distribution automation, metering automation business and a small amount of video monitor business, to meet the functions such as distribution operational monitoring, decision-making, control, distribution line pilot protection; Meet the demand that the electricity consumptions such as adapted electric data collecting, analysis, spatial load forecasting, domestic consumer's interaction support.
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Fig. 1 shows the schematic flow sheet realizing power distribution automation QoS of survice support method that one embodiment of the invention provides, and as shown in Figure 1 and Figure 2, of the present inventionly realizes power distribution automation QoS of survice support method, comprising:
S11, reception power distribution automation Service assurance application, the evaluation index of power distribution automation business and the QoS target requirement of power distribution automation business.
Be understandable that, as shown in Table 2, power distribution automation data rate during power distribution automation business ensures QoS, power distribution automation time delay, the power distribution automation error rate have clear and definite demand, therefore, the evaluation index of power distribution automation business comprises power distribution automation data rate, power distribution automation time delay, the power distribution automation error rate.
Table two
S12, evaluation index according to power distribution automation business, set up the linear space of power distribution automation business.
Be understandable that, comprise power distribution automation data rate, power distribution automation time delay, the power distribution automation error rate for coordinate base with the evaluation index of power distribution automation business, set up the real number field linear space of power distribution automation business.
S13, the linear space of power distribution automation business to be converted, obtain the normal linearity subspace of power distribution automation business.
S131, conversion is normalized to the linear space of power distribution automation business, obtains the normal linearity space of power distribution automation business.
Be understandable that, normalization conversion refers to have the evaluation index of dimension to be converted to nondimensional evaluation index.Power distribution automation data rate is effectiveness type index, is namely the bigger the better, and adopts logarithmic function to be normalized conversion.Power distribution automation time delay and the power distribution automation error rate are cost type index, namely the smaller the better, adopt arctan function to be normalized conversion.
S132, linear transformation is carried out to the normal linearity space of power distribution automation business, obtain the normal linearity subspace of power distribution automation business.
Be understandable that, linear transformation refers to according to the preference of power distribution automation business to power distribution automation data rate, power distribution automation time delay and the power distribution automation error rate, carries out coordinate replacement to coordinate base.Wherein, described preference refers to the weight formed based on multiple attributive decision making method, and described multiple attributive decision making method comprises analytic hierarchy process (AHP), gray scale correlation fractal dimension or ideal point method.
S14, in the normal linearity subspace of power distribution automation business, according to the resource distribution of broadband wireless public network, set up the network capabilities curved surface of broadband wireless public network.
Concrete, in the normal linearity subspace of power distribution automation business, the grid reference being supplied to power distribution automation business with broadband wireless public network configure can provide power distribution automation data rate, power distribution automation time delay, the power distribution automation error rate is for the center of circle, the network tunable being supplied to power distribution automation business with broadband wireless public network configure can provide power distribution automation data rate, power distribution automation time delay, the power distribution automation error rate for semiaxis, set up the network capabilities curved surface of power distribution automation business.
Wherein, described grid reference is configured to the physical layer communication technology that broadband wireless public network adopts, and comprises clean culture, enhanced multicast, enhancement mode multiple antennas, enhanced collaborative multicast communication, enhanced relay, enhancement mode carrier aggregation, enhancement mode interference mitigation technology;
Described network tunable is configured to the network parameters of broadband wireless public network by radio resource control layer signal deployment, comprise channel width and transmitting power that physical layer keeps for power distribution automation business, the maximum retransmission of physical layer mixed self-adapting retransmission process, the modulation coding mode of physical layer, the dispatching priority of media access control layer, the maximum retransmission of the adaptive retransmission process of wireless chain control layer, the distribution of radio resource and maintenance priority.
Be understandable that, keep for channel width and the transmitting power of power distribution automation business, determine power distribution automation data rate; The modulation coding mode of physical layer, determines the power distribution automation error rate under current radio channel environment; The maximum retransmission of the maximum retransmission of physical layer mixed self-adapting retransmission process and the adaptive retransmission process of wireless chain control layer, determines the power distribution automation error rate; The predefine dispatching priority of media access control layer, determines the scheduling strategy of scheduler, queue management policies and rate-shaping strategy, therefore, determines power distribution automation time delay.
S15, in the normal linearity subspace of power distribution automation business, according to the QoS target requirement of power distribution automation business, set up power distribution automation business QoS demand vector.
The resource distribution of S16, adjustment broadband wireless public network is to meet the QoS target requirement of power distribution automation business.
Be understandable that, if the QoS demand vector of power distribution automation business drops within the scope of network capabilities curved surface of this power distribution automation business, then broadband wireless public network continues to keep current resource distribution; If the QoS demand vector of power distribution automation business drops on outside the scope of network capabilities curved surface of this power distribution automation business, then by adjusting the resource distribution of broadband wireless public network to meet the QoS target requirement of power distribution automation business.
Concrete, by adjustment physical layer communication technology, adjust the grid reference configuration of broadband wireless public network significantly, thus the center of circle of the network capabilities curved surface of adjustment power distribution automation business; By adjustment network parameters, adjust the network tunable configuration of broadband wireless public network by a small margin, thus the semiaxis of the network capabilities curved surface of stretching or compression power distribution automation business.
Fig. 3 shows the schematic flow sheet realizing metering automation QoS of survice support method that one embodiment of the invention provides, and as shown in Figure 3, Figure 4, of the present inventionly realizes metering automation QoS of survice support method, comprising:
S31, reception metering automation Service assurance application, the evaluation index of metering automation business and the QoS target requirement of metering automation business.
Be understandable that, as shown in Table 3, metering automation data rate during metering automation business ensures QoS, channel connection speed, the metering automation error rate have clear and definite demand, therefore, the evaluation index of metering automation business comprises metering automation data rate, channel connection speed, the metering automation error rate.
Table three
S32, evaluation index according to metering automation business, set up the linear space of metering automation business.
Be understandable that, comprise metering automation data rate, channel connection speed, the metering automation error rate for coordinate base with the evaluation index of metering automation business, set up the real number field linear space of metering automation business.
S33, the linear space of metering automation business to be converted, obtain the normal linearity subspace of metering automation business.
S331, conversion is normalized to the linear space of metering automation business, obtains the normal linearity space of metering automation business.
Be understandable that, normalization conversion refers to have the evaluation index of dimension to be converted to nondimensional evaluation index.Metering automation data rate and channel connection speed are effectiveness type indexs, are namely the bigger the better, and adopt logarithmic function to be normalized conversion.The metering automation error rate is cost type index, namely the smaller the better, adopts arctan function to be normalized conversion.
S332, linear transformation is carried out to the normal linearity space of metering automation business, obtain the normal linearity subspace of metering automation business.
Be understandable that, linear transformation refers to according to the preference of metering automation business to metering automation data rate, channel connection speed, the metering automation error rate, carries out coordinate replacement to coordinate base.Wherein, described preference refers to the weight formed based on multiple attributive decision making method, and described multiple attributive decision making method comprises analytic hierarchy process (AHP), gray scale correlation fractal dimension or ideal point method.
S34, in the normal linearity subspace of metering automation business, according to the resource distribution of broadband wireless public network, set up the network capabilities curved surface of broadband wireless public network.
Concrete, in the normal linearity subspace of metering automation business, the grid reference being supplied to metering automation business with broadband wireless public network configure can provide metering automation data rate, channel connection speed, the metering automation error rate is for the center of circle, the network tunable being supplied to metering automation business with broadband wireless public network configure can provide metering automation data rate, channel connection speed, the metering automation error rate for semiaxis, set up the network capabilities curved surface of metering automation business.
Wherein, described grid reference is configured to the physical layer communication technology that broadband wireless public network adopts, and comprises clean culture, enhanced multicast, enhancement mode multiple antennas, enhanced collaborative multicast communication, enhanced relay, enhancement mode carrier aggregation, enhancement mode interference mitigation technology;
Described network tunable is configured to the network parameters of broadband wireless public network by radio resource control layer signal deployment, comprise channel width and transmitting power that physical layer keeps for metering automation business, the maximum retransmission of physical layer mixed self-adapting retransmission process, the modulation coding mode of physical layer, the dispatching priority of media access control layer, the maximum retransmission of the adaptive retransmission process of wireless chain control layer, the distribution of radio resource and maintenance priority.
Be understandable that, keep for channel width and the transmitting power of metering automation business, determine metering automation data rate; The modulation coding mode of physical layer, determines the metering automation error rate under current radio channel environment; The predefine dispatching priority of media access control layer, determines the scheduling strategy of scheduler, queue management policies and rate-shaping strategy, therefore, determines the service delay of metering automation business; The distribution of radio resource and maintenance priority, whether the EPS determining carrying metering automation business is carried in the process of establishing of base station and unconditionally performs immediately, also determines the order of priority in process of establishing, therefore, determines channel connection rate.
S35, in the normal linearity subspace of metering automation business, according to the QoS target requirement of metering automation business, set up metering automation business QoS demand vector.
The resource distribution of S36, adjustment broadband wireless public network is to meet the QoS target requirement of metering automation business.
Be understandable that, if the QoS demand vector of metering automation business drops within the scope of network capabilities curved surface of this metering automation business, then broadband wireless public network continues to keep current resource distribution; If the QoS demand vector of metering automation business drops on outside the scope of network capabilities curved surface of this metering automation business, then by adjusting the resource distribution of broadband wireless public network to meet the QoS target requirement of metering automation business.
Concrete, by adjustment physical layer communication technology, adjust the grid reference configuration of broadband wireless public network significantly, thus the center of circle of the network capabilities curved surface of adjustment metering automation business; By adjustment network parameters, adjust the network tunable configuration of broadband wireless public network by a small margin, thus the semiaxis of the network capabilities curved surface of stretching or compression metering automation business.
Fig. 5 shows the schematic flow sheet realizing distribution video monitoring service QoS assurance that one embodiment of the invention provides, and as shown in Figure 5, of the present inventionly realizes distribution video monitoring service QoS assurance, comprising:
S51, reception distribution video monitoring service ensure application, the evaluation index of distribution video monitoring service and the QoS target requirement of distribution video monitoring service.
Be understandable that, distribution video monitoring data speed during distribution video monitoring service ensures QoS, distribution video monitoring time delay have clear and definite demand, therefore, the evaluation index of distribution video monitoring service comprises distribution video monitoring data speed, distribution video monitoring time delay.
S52, evaluation index according to distribution video monitoring service, set up the linear space of distribution video monitoring service.
Be understandable that, comprise distribution video monitoring data speed, distribution video monitoring time delay for coordinate base with the evaluation index of distribution video monitoring service, set up the real number field two-dimensional linear space of distribution video monitoring service.
S53, the linear space of distribution video monitoring service to be converted, obtain the normal linearity subspace of distribution video monitoring service.
S531, conversion is normalized to the linear space of distribution video monitoring service, obtains the normal linearity space of distribution video monitoring service.
Be understandable that, normalization conversion refers to have the evaluation index of dimension to be converted to nondimensional evaluation index.Distribution video monitoring data speed is effectiveness type index, is namely the bigger the better, and adopts logarithmic function to be normalized conversion.Distribution video monitoring time delay is cost type index, namely the smaller the better, adopts arctan function to be normalized conversion.
S532, linear transformation is carried out to the normal linearity space of distribution video monitoring service, obtain the normal linearity subspace of distribution video monitoring service.
Be understandable that, linear transformation refers to according to the preference of distribution video monitoring service to distribution video monitoring data speed, distribution video monitoring time delay, carries out coordinate replacement to coordinate base.Wherein, described preference refers to the weight formed based on multiple attributive decision making method, and described multiple attributive decision making method comprises analytic hierarchy process (AHP), gray scale correlation fractal dimension or ideal point method.
S54, in the normal linearity subspace of distribution video monitoring service, according to the resource distribution of broadband wireless public network, set up the network capabilities curved surface of broadband wireless public network.
Concrete, in the normal linearity subspace of distribution video monitoring service, the grid reference being supplied to distribution video monitoring service with broadband wireless public network configure can provide distribution video monitoring data speed, distribution video monitoring time delay is for the center of circle, the network tunable being supplied to distribution video monitoring service with broadband wireless public network configure can provide distribution video monitoring data speed, distribution video monitoring time delay for semiaxis, set up the network capabilities curved surface of distribution video monitoring service.
Wherein, described grid reference is configured to the physical layer communication technology that broadband wireless public network adopts, and comprises clean culture, enhanced multicast, enhancement mode multiple antennas, enhanced collaborative multicast communication, enhanced relay, enhancement mode carrier aggregation, enhancement mode interference mitigation technology;
Described network tunable is configured to the network parameters of broadband wireless public network by radio resource control layer signal deployment, comprise channel width and transmitting power that physical layer keeps for distribution video monitoring service, the maximum retransmission of physical layer mixed self-adapting retransmission process, the modulation coding mode of physical layer, the dispatching priority of media access control layer, the maximum retransmission of the adaptive retransmission process of wireless chain control layer, the distribution of radio resource and maintenance priority.
S55, in the normal linearity subspace of distribution video monitoring service, according to the QoS target requirement of distribution video monitoring service, set up distribution video monitoring service QoS demand vector.
The resource distribution of S56, adjustment broadband wireless public network is to meet the QoS target requirement of distribution video monitoring service.
Be understandable that, if the QoS demand vector of distribution video monitoring service drops within the scope of network capabilities curved surface of this distribution video monitoring service, then broadband wireless public network continues to keep current resource distribution; If the QoS demand vector of distribution video monitoring service drops on outside the scope of network capabilities curved surface of this distribution video monitoring service, then by adjusting the resource distribution of broadband wireless public network to meet the QoS target requirement of distribution video monitoring service.
Concrete, by adjustment physical layer communication technology, adjust the grid reference configuration of broadband wireless public network significantly, thus the center of circle of the network capabilities curved surface of adjustment distribution video monitoring service; By adjustment network parameters, adjust the network tunable configuration of broadband wireless public network by a small margin, thus the semiaxis of the network capabilities curved surface of stretching or compression distribution video monitoring service.
In sum, the invention provides one and realize distribution automation QoS of survice support method.The method comprises: receive the Service assurance application that distribution automation business is initiated, and described Service assurance application comprises evaluation index corresponding to type of service, type of service and QoS target requirement corresponding to type of service; The evaluation index corresponding according to described type of service, sets up the linear space that type of service is corresponding; Linear space corresponding for described type of service is converted, obtains the normal linearity subspace that type of service is corresponding; In the normal linearity subspace that described type of service is corresponding, according to the resource distribution of broadband wireless public network, set up the network capabilities curved surface of broadband wireless public network; In the normal linearity subspace that described type of service is corresponding, the QoS target requirement corresponding according to described type of service, sets up the QoS demand vector that type of service is corresponding; If QoS demand vector corresponding to type of service drop on network capabilities curved surface corresponding to this type of service scope outside, then by the resource distribution of adjustment broadband wireless public network to meet QoS target requirement corresponding to type of service.The method is used for realizing by public network WiMAX as 10kV and following mesolow intelligent distribution network communication traffic provide QoS to ensure.
In sum, the invention provides one and one of ordinary skill in the art will appreciate that: above each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of the claims in the present invention.

Claims (10)

1. realize a distribution automation QoS of survice support method, it is characterized in that, comprising:
Receive the Service assurance application that distribution automation business is initiated, described Service assurance application comprises evaluation index corresponding to type of service, type of service and QoS target requirement corresponding to type of service;
The evaluation index corresponding according to described type of service, sets up the linear space that type of service is corresponding;
Linear space corresponding for described type of service is converted, obtains the normal linearity subspace that type of service is corresponding;
In the normal linearity subspace that described type of service is corresponding, according to the resource distribution of broadband wireless public network, set up the network capabilities curved surface of broadband wireless public network;
In the normal linearity subspace that described type of service is corresponding, the QoS target requirement corresponding according to described type of service, sets up the QoS demand vector that type of service is corresponding;
If QoS demand vector corresponding to type of service drop on network capabilities curved surface corresponding to this type of service scope outside, then by the resource distribution of adjustment broadband wireless public network to meet QoS target requirement corresponding to type of service.
2. the method for claim 1, is characterized in that, described type of service comprises power distribution automation business, metering automation business or distribution video monitoring service;
The evaluation index that described type of service is corresponding, comprising:
Evaluation index corresponding to power distribution automation business comprises power distribution automation data rate, power distribution automation time delay, the power distribution automation error rate;
Evaluation index corresponding to metering automation business comprises metering automation data rate, channel connection speed, the metering automation error rate;
The evaluation index that distribution video monitoring service is corresponding comprises distribution video monitoring data speed, distribution video monitoring time delay.
3. method as claimed in claim 2, is characterized in that the described evaluation index corresponding according to type of service is set up the linear space that type of service is corresponding, being comprised:
If type of service is power distribution automation business, the real number field linear space that to set up with power distribution automation data rate, power distribution automation time delay, the power distribution automation error rate be coordinate base;
If type of service is metering automation business, the real number field linear space that to set up with metering automation data rate, channel connection speed, the metering automation error rate be coordinate base;
If type of service is distribution video monitoring service, the real number field two-dimensional linear space that to set up with distribution video monitoring data speed, distribution video monitoring time delay be coordinate base.
4. method as claimed in claim 3, is characterized in that, describedly linear space corresponding for type of service is converted, and obtains the normal linearity subspace that type of service is corresponding, comprising:
The linear space corresponding to type of service is normalized conversion, obtains the normal linearity space that type of service is corresponding;
Linear transformation is carried out in the normal linearity space corresponding to type of service, obtains the normal linearity subspace that type of service is corresponding.
5. method as claimed in claim 4, it is characterized in that, the described linear space corresponding to type of service is normalized conversion, obtains the normal linearity space that this type of service is corresponding, comprising:
If type of service is power distribution automation business, adopt logarithmic function to be normalized conversion to power distribution automation data rate, adopt arctan function to be normalized conversion to power distribution automation time delay and the power distribution automation error rate;
If type of service is metering automation business, adopt logarithmic function to be normalized conversion to metering automation data rate and channel connection speed, adopt arctan function to be normalized conversion to the metering automation error rate;
If type of service is distribution video monitoring service, adopt logarithmic function to be normalized conversion to distribution video monitoring data speed, adopt arctan function to be normalized conversion to distribution video monitoring time delay.
6. method as claimed in claim 5, it is characterized in that, linear transformation is carried out in the described normal linearity space corresponding to type of service, obtains the normal linearity subspace that type of service is corresponding, comprising:
If type of service is power distribution automation business, according to the preference of power distribution automation business to power distribution automation data rate, power distribution automation time delay and the power distribution automation error rate, coordinate replacement is carried out to coordinate base;
If type of service is metering automation business, according to the preference of metering automation business to metering automation data rate, channel connection speed and the metering automation error rate, coordinate replacement is carried out to coordinate base;
If type of service is distribution video monitoring service, according to the preference of distribution video monitoring service to distribution video monitoring data speed, distribution video monitoring time delay, coordinate replacement is carried out to coordinate base;
Described preference refers to the weight formed based on multiple attributive decision making method, and described multiple attributive decision making method comprises analytic hierarchy process (AHP), gray scale correlation fractal dimension or ideal point method.
7. method as claimed in claim 6, is characterized in that, the resource distribution of described broadband wireless public network comprises grid reference configuration and network tunable configuration;
Described grid reference is configured to the physical layer communication technology that broadband wireless public network adopts, and comprises clean culture, enhanced multicast, enhancement mode multiple antennas, enhanced collaborative multicast communication, enhanced relay, enhancement mode carrier aggregation, enhancement mode interference mitigation technology;
Described network tunable is configured to the network parameters of broadband wireless public network by radio resource control layer signal deployment, comprise channel width and transmitting power that physical layer keeps for distribution automation business, the maximum retransmission of physical layer mixed self-adapting retransmission process, the modulation coding mode of physical layer, the dispatching priority of media access control layer, the maximum retransmission of the adaptive retransmission process of wireless chain control layer, the distribution of radio resource and maintenance priority.
8. method as claimed in claim 7, is characterized in that, in the normal linearity subspace that place type of service is corresponding, according to the resource distribution of broadband wireless public network, set up the network capabilities curved surface of broadband wireless public network, comprising:
If type of service is power distribution automation business, in the normal linearity subspace that power distribution automation business is corresponding, the grid reference being supplied to power distribution automation business with broadband wireless public network configure can provide power distribution automation data rate, power distribution automation time delay, the power distribution automation error rate is for the center of circle, the network tunable being supplied to power distribution automation business with broadband wireless public network configure can provide power distribution automation data rate, power distribution automation time delay, the power distribution automation error rate for semiaxis, set up the network capabilities curved surface that power distribution automation business is corresponding;
If type of service is metering automation business, in the normal linearity subspace that metering automation business is corresponding, the grid reference being supplied to metering automation business with broadband wireless public network configure can provide metering automation data rate, channel connection speed, the metering automation error rate is for the center of circle, the network tunable being supplied to metering automation business with broadband wireless public network configure can provide metering automation data rate, channel connection speed, the metering automation error rate for semiaxis, set up the network capabilities curved surface that metering automation business is corresponding;
If type of service is distribution video monitoring service, in the normal linearity subspace that distribution video monitoring service is corresponding, the grid reference being supplied to distribution video monitoring service with broadband wireless public network configure can provide distribution video monitoring data speed, distribution video monitoring time delay is for the center of circle, the network tunable being supplied to distribution video monitoring service with broadband wireless public network configure can provide distribution video monitoring data speed, distribution video monitoring time delay for semiaxis, set up the network capabilities curved surface that distribution video monitoring service is corresponding.
9. method as claimed in claim 8, is characterized in that, in the described normal linearity subspace corresponding in type of service, and the QoS target requirement corresponding according to type of service, set up the QoS demand vector that type of service is corresponding, comprising:
If type of service is power distribution automation business, the QoS target requirement of power distribution automation business is mapped to normal linearity subspace corresponding to power distribution automation business, forms the QoS demand vector of power distribution automation business;
If type of service is metering automation business, the QoS target requirement of metering automation business is mapped to normal linearity subspace corresponding to metering automation business, forms the QoS demand vector of metering automation business;
If type of service is distribution video monitoring service, the QoS target requirement of distribution video monitoring service is mapped to normal linearity subspace corresponding to distribution video monitoring service, forms the QoS demand vector of distribution video monitoring service.
10. method as claimed in claim 9, it is characterized in that, if outside the vectorial scope dropping on network capabilities curved surface corresponding to this type of service of QoS demand that described type of service is corresponding, then by adjusting the resource distribution of broadband wireless public network to meet QoS target requirement corresponding to type of service, comprising:
Grid reference configuration in the resource distribution of adjustment broadband wireless public network, the center of circle of the network capabilities curved surface making type of service corresponding changes;
Network tunable configuration in the resource distribution of adjustment broadband wireless public network, the semiaxis of the network capabilities curved surface making type of service corresponding changes;
Repeat the network tunable configuration in the resource distribution of grid reference configuration in the resource distribution of described adjustment broadband wireless public network and described adjustment broadband wireless public network, until within the vectorial scope dropping on network capabilities curved surface corresponding to this type of service of QoS demand corresponding to type of service.
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