CN103987060B - Flow sharing platform - Google Patents

Flow sharing platform Download PDF

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Publication number
CN103987060B
CN103987060B CN201410235610.XA CN201410235610A CN103987060B CN 103987060 B CN103987060 B CN 103987060B CN 201410235610 A CN201410235610 A CN 201410235610A CN 103987060 B CN103987060 B CN 103987060B
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flow
user
supplier
module
shared
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CN103987060A (en
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吴建平
张朝昆
崔勇
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Tsinghua University
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Tsinghua University
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Abstract

A flow sharing platform comprises a flow provider access end, a flow user access end and a flow sharing server controlling flow interaction between the flow provider access end and the flow user access end. The flow sharing process is independently completed by the two access ends. The flow sharing server only records the generated flow, has control over generated pricing and the like, and does not interfere with communication between the two access ends. As for a provider, before flow sharing, a flow cap needs to be set necessarily, and the unnecessary loss, caused when the provider provides excessive flow for a user, of the user can be avoided. According to the flow sharing platform, trustable connection between unfamiliar mobile phone users through a public key by means of certification can be completed, and flow sharing is successfully carried out. According to the flow sharing platform, the pricing strategy is generated, the flow sharing platform has the advantages of convenience, fairness, expandability and safety, and the balance among the flow provider, the flow user and a service provider is achieved.

Description

A kind of flow shared platform
Technical field
The invention belongs to wireless Internet technologies field, more particularly to a kind of flow shared platform.
Background technology
With the fast development of development of Mobile Internet technology, mobile terminal data flow is being ramped.Estimate according to Cisco, move The flow that dynamic equipment is produced will increase nearly 11 times in following 5 years, and will occupy 55% global ip flow.As current business One of an important part for industry network, the important measures fixed a price alleviation data traffic is become.In history price, occur Such as set meal formula price and the scheme fixed a price based on flow.For set meal formula price, inevasible can throw into question. Because set meal does not consider the actual demand of flow user, only made simple price, and monthly after, set meal flow loses Effect, therefore the waste of flow can be caused, cause user to use the effectiveness of flow to reduce.Now, set meal user considers to redistribute Residual flow gives other flow user, to reach the maximization of the interests of both sides.
Flow shared platform can avoid the waste of flow.In flow shared platform system, some cellphone subscribers are (referred to as Flow supplier) residual flow in set meal will be redistributed.Other cellphone subscribers's (referred to as flow user), due to using Compared with the charging way of low discharge, and wish to obtain more flows within the system, so as to using flow sharing mode Online.
Kim et al. has invented a visual interface, and the interface can effectively help user monitoring and management flow State.The instrument can share unnecessary flow to the people for specifying to use.However, the maximum shortcoming of the instrument is flow providing Person must be enough to flow user trust, it is allowed to flow user is operated by the authority that flow supplier gives. Shair instruments are arranged on mobile phone terminal, can share the remaining cost of the phone call of mobile phone and short message.Because Shair is adopted Bluetooth technologies, it needs shared mobile phone distance near, and user mutually recognizes.U.S. Cellular provides one kind Preferential policy, that is, allow a mobile phone to attach most 10 mobile phones to share flow together, and is paid complete by the mobile phone Portion's expense.This preferential policy is used in family's Mobile Phone Consumption, limited using scene.The Tethering for supporting flow shared Technology will also become one of packaged service that operator promotes mainly.
The price of wireless network has been analysed in depth for the pricing strategy model of flow shared platform, Gizelis et al. Strategy, they are divided into package price strategy and pricing strategy based on parameter etc. pricing strategy.Duan et al. is equally analyzed Package price strategy and usage-based pricing in Wi-Fi markets, provide and can join for flow shared platform pricing strategy The foundation examined, but these schemes are not directed to flow user and flow supplier's our mutual benefit.Ai et al. is proposed A kind of resource-sharing pricing strategy model, the strategy realizes the shared of resource by way of the optimization network bandwidth.By number According to flow, shared to carry out flow unloading be also a popular domain.
Existing flow shared platform instrument, can only could be realized sharing by two people for recognizing by in-plant transmission, It uses scene to be limited.Also, the shared instrument of traditional flow cannot be supplied to the rational flow of flow user to use price, The support of maximum benefit more cannot be given to flow supplier simultaneously.
The content of the invention
In order to overcome the shortcoming of above-mentioned prior art, it is an object of the invention to provide a kind of flow shared platform, can be with The flow of the cellphone subscriber being not familiar with is redistributed, these cellphone subscribers either flow supplier, or flow is used Person, as long as trusting the platform, can be to use by registering and employing;Also, the optimal pricing model of the flow shared platform The information of COS and user credit grade can be passed through, an exercisable billing model is provided for both, the price mould Type can utilize the interests between platform in balance user, make making without the conflict of interest between flow supplier and flow user With the public flow of platform.
To achieve these goals, the technical solution used in the present invention is:
A kind of flow shared platform, including:Flow supplier's incoming end (Provider Access Terminal, referred to as PAT), flow user incoming end (Consumer Access Terminal, abbreviation CAT) and flow shared server (Traffic Sharing Server, abbreviation TSS), wherein, the flow interaction scenario of CAT and PAT is uniformly controlled by TSS;Its In:
The PAT includes:
The registration login module one for logging in is registered for flow supplier;
For managing the user management module one of subscriber data, password and integration;
For limiting the flow cap setup module that flow supplier provides flow amount;
Module is provided for providing focus for the flow that flow user is accessed;
And for generating the traffic report module one that traffic report is consulted for flow supplier;
The CAT includes:
The registration login module two for logging in is registered for flow user;
For managing the user management module two of subscriber data, password and integration;
Module is used for selecting focus and accessing the flow for using;
And for generating the traffic report module two that traffic report is consulted for flow user;
The TSS includes:
For controlling the registering and logging of CAT and PAT and CAT and PAT being authenticated to connect to guarantee that CAT and PAT sets up The Access Control module for connecing;
For obtaining the shared concrete condition of flow according to the analysis of history use time, cellphone subscriber ID and shared uninterrupted Flow analysis module;
For obtaining the track following module that flow supplier is connected concrete condition with flow user;
For carrying out credit rating simultaneously for management for flow supplier and flow user record integration and according to integration Member is integrated the Point Management Module of inquiry;
For according to credit grade and COS convection current amount supplier and the flow user corresponding progressive price of formulation Pricing management module.
In the user management module one, after the shared flow that flow supplier provides is by use, flow offer is given Person integrates accordingly, and increases on original integration, the credit grade of flow supplier is improved by integration, to make flow The flow that supplier provides produces bigger income;In the user management module two, in flow user shared flow is used Afterwards, integrate accordingly to flow user, and increase on original integration, corresponding flow user letter is generated by integration With grade, when next flow user uses shared flow, according to credit grade flow price to be adjusted.
The flow cap setup module includes that flow cap function is inquired about and arranged to residual flow, makes flow supplier timely Solution residual flow situation, so that it is configured.
At the end of flow is interacted, the flow provides module and generates flow information, is on the one hand stored on PAT so as to shape Into traffic report, the flow information situation for producing on the other hand is reported to TSS;The flow generates flow information using module, On the one hand it is stored on CAT to form traffic report, the flow information situation for producing on the other hand is reported to TSS;Two streams Flow amount is equal in amount information.
After once shared flow connection is finished, link information is obtained by track following module, by the module Two parties ID of connection every time are obtained, every time the time of connection, and the shared flow quantity produced by connection every time, the mould Block flow information is provided by flow supplier with flow user both sides, if the flow that both sides provide is inconsistent, reason To there is a side to exit suddenly or interrupt signal, connection traffic then accepts and believe the information of the opposing party's offer.
No. ID and the type of flow supplier offer flow in the information of the focus only including mobile phone virtual user.
The TSS is to the process that CAT and PAT are authenticated:
The flow supplier new for one, is registered first on PAT, to obtain an ID, and one For his transparent login private key M1;When flow supplier logs in, TSS can be according to its ID and private key M1, generating one can The public key M for being supplied to flow user to be accessed nearby to use2
The flow user new for one, is registered first on CAT, to obtain an ID and a login Private key M3, by ID and private key M3Complete to log in, and obtain hotspot list.
Compared with prior art, the invention has the beneficial effects as follows:
(1) convenience.User uses shared flow by the flow shared platform, it is only necessary to registers on the platform and logs in Can use, without the need for carrying out extra checking or the offer of additional password.Therefore, the flow user of the platform need not be known and carry Donor is convenient acquisition flow under the premise of whose.For supplier, they can easily provide residual flow, so as to Obtain certain remuneration (general to feed back to supplier in the form of integration).Supplier can also easily set offer flow Full amount, in order to avoid beyond the scope for oneself possessing flow.
(2) fairness.Because flow user wishes to use flow with the price lower than operator, and supplier wishes Interests as much as possible are provided from offer.The flow shared platform can pass through the interests that rational price adjusts both sides, make Common interest reaches maximization.This is not available for other platforms.
(3) extensibility.With being continuously increased for user, the flow shared platform will become more stable, or even than just Phase effect is more preferable.
(4) safety.To trust the platform it is basic between user due to being with respect to other shareware, therefore this is flat The especially careful consideration of the work of platform secure context, it is ensured that than other similar softwares more safe and reliable.
Description of the drawings
Fig. 1 is inventive flow user incoming end functional structure chart.
Fig. 2 is inventive flow supplier's incoming end functional structure chart.
Fig. 3 is inventive flow shared server functional structure chart.
Fig. 4 is present invention registration login process figure.
Fig. 5 is that the present invention selects hotspot list flow chart.
Fig. 6 is the shared flow chart of inventive flow.
Fig. 7 is flow diagram of authentication procedures of the present invention.
Specific embodiment
Describe embodiments of the present invention in detail with reference to the accompanying drawings and examples.
The present invention is a kind of flow shared platform, and especially provides as described below to flow shared platform pricing strategy.
1. functional module
Inventive flow shared platform includes altogether three end systems, is respectively flow user incoming end (Consumer Access Terminal, abbreviation CAT), supplier's incoming end (Provider Access Terminal, abbreviation PAT) and flow Shared server (Traffic Sharing Server, abbreviation TSS), wherein, CAT and PAT is used as client, and function is close, The interaction scenario of both flows is uniformly controlled by TSS, is reasonably fixed a price to provide both, and strains some burst feelings Condition, such as interrupts.
(1) for flow user incoming end CAT, it mainly includes 4 modules, is respectively registration login module 2nd, user management module two, flow uses module and traffic report module two, as shown in Figure 1.In order to shared using flow Flow in platform, flow user should be registered first in platform.For old user, directly logged in. In user management module two, in addition to the basic function such as user information management and Password Management, also including integration managing function.When Flow user has been used after shared flow, and system generates corresponding integration automatically according to using traffic conditions, and increases to original On some integrations.By integration, corresponding flow user credit grade can be automatically generated.The purposes of these credit grades exists In, when user next using shared flow when, can according to credit grade adjust customer flow price (credit grade is higher, Flow price is lower).The basic function of flow user is that flow is used.Flow user can be selected in flow shared platform The focus of supplier's offer is provided, and accesses the focus.After authentication, then can have using the right of flow.Using altogether The process of flow is enjoyed, TSS is only monitored to shared two ends, and is not disturbed.At the end of interaction, CAT preserves stream Amount information, and report use information to TSS.The flow information that second traffic report module can preserve according to CAT is counted, raw Into traffic report.Flow user can be with the discharge record of query history, the traffic conditions that this month has used, and produces expense Situation.
(2) for supplier incoming end PAT, it mainly includes 5 modules, is respectively registration login module one, uses Family management module one, flow cap setup module, flow provide module and traffic report module one, as shown in Figure 2.For offer stream For the user of amount, need also exist for first registering and log in again, therefore, PAT is still needed with registration login feature.User management mould The function of block one is similar with CAT, slightly distinguish where be integration managing functionally.The integrating function of PAT is mainly for carrying The credit grade of high supplier, so that the flow for providing supplier produces bigger income.Flow cap setup module be in order to The flow restriction for preventing the flow that supplier provides from should possess beyond oneself, to supplier unnecessary loss is caused.Cause This, the functional module includes that flow cap function is inquired about and arranged to residual flow, makes supplier understand residual flow situation in time, with Just it is configured.Flow provides module guarantees that supplier can provide focus, and after being connected with the foundation of flow user, carries out Flow is shared.At the end of flow is interacted, flow information is generated, be on the one hand stored on PAT just to form traffic report, it is another Situations such as aspect reports the flow information of generation to TSS.Traffic report module is similar with CAT situations, repeats no more.
(3) for flow shared server end TSS, it mainly include 5 modules, be respectively Access Control module, Flow analysis module, track following module, Point Management Module and pricing management module, as shown in Figure 3.Access Control module can To control the registering and logging of CAT and PAT, such as differentiate whether registered user name has been present, whether login password correct etc..Should Module can also be authenticated to two terminals of flow user and supplier.By certification, it can be ensured that what is be not familiar with is double Side can be set up by TSS and be trusted, and by setting up connection, complete the shared of flow between two cellphone subscribers, and authentication module is use The foundation stone that the trust at family two ends is shared.
Flow analysis module can be according to history use time, cellphone subscriber ID (no matter flow user or supplier) Statistical analysiss are carried out with shared uninterrupted, the shared concrete condition of flow is obtained.
Track following module is mainly responsible for obtaining the concrete condition that flow user is connected with supplier.When once sharing After flow connection is finished, flow shared platform obtains link information by track following module.By the module, system can To learn two parties ID of each connection, the time of connection, and the shared flow quantity produced by connection every time every time.Should Module flow information can be given by flow user and supplier both sides and be provided.Both flows are usually consistent, if not Unanimously, then situation about occurring is only possible to be have a side to exit suddenly or interrupt signal that then connection traffic then accepts and believe the opposing party's statistics Information.
Point Management Module can help manager to be integrated inquiry, and the flow produced to each effectively connection to logical Letter both sides' note integration, and according to integration adjustment user two ends credit grade.
Pricing management module is by credit grade and COS (such as 2G, 3G and 4G) come to flow user and supplier Corresponding progressive price is formulated respectively, the price demand actual to meet both sides.
2. flow process is realized
Communication means in the present invention between flow user, flow supplier and flow shared platform includes following step Suddenly:
Step 1:Registration login process.No matter flow user or flow supplier are required for registering and logging in the platform Could use, idiographic flow is as shown in Figure 4.
Step 1.1:No matter flow user or flow supplier, first when platform of the cellphone subscriber using the present invention First should be registered.When mobile phone A PP is opened, the system determines whether new user.
Step 1.2:If new user, then registration is needed.Registration process is similar with other mobile phone As PP, i.e., carry to platform For phone user information.After the completion of registration, TSS will store user's virtual ID number of the cellphone subscriber, used as the mobile phone The mark of user, and private key cryptographic is generated for the user, the checking so as to after is used.
Step 1.3:If old user, Jing CAT/PAT judge, are directly entered login interface, are logged in.User utilizes The username and password of registration and random identifying code are logged in.
Step 1.4:Empirical tests, if matching is consistent, login successfully, and enter inbound traffics shared platform interface, otherwise log in Failure.
Step 2:Select focus process.After cellphone subscriber's Successful login, there is provided person will provide focus, and flow user will Focus therein is selected to be attached.The process is as shown in Figure 5.
Step 2.1:For supplier, after login, then hot information can be provided to flow shared server.Heat Point information does not include supplier's terminal sensitive information, such as cell-phone number, user's Real Name, and only includes mobile phone virtual ID Number, there is provided person provides the type of flow, such as 2G, 3G and 4G.
Step 2.2:For flow user, after login, then focus row can be obtained from flow shared server Table information, and any focus is independently selected as access point, selection gist in addition to signal strength, can be with according to offer stream The type of amount is selected, i.e., flow user can select to be carried out using 2G, 3G or 4G flow by flow shared platform Consumption.
Step 3:Flow uses process.After successful connection, user two ends proceed by flow interaction.During a little TSS is only monitored, without making any interference to PAT and CAT.Between just carrying out after shared flow interaction terminates Interaction, carries out the flow processs such as necessary valuation.Idiographic flow is as shown in Figure 6.
Step 3.1:For flow supplier, in order to prevent providing restriction of the flow beyond flow is possessed, providing Before flow, PAT allows supplier to arrange flow cap.Before flow is provided, PAT will inquire whether supplier arranges flow Cap, if agreed to, provides flow and is configured to PAT, otherwise will start to provide flow.If being not provided with flow restriction, PAT will Default traffic cap is a maximum that can provide flow.
Step 3.2:CAT directly carries out the use of flow after the focus for accessing is selected to, and flow user is now The Internet can normally be connected.
Step 3.3:After interaction terminates, both sides disconnect, and the traffic generating record of generation is saved in each Mobile phone terminal.In addition, the flow essential information that interaction is produced is sent to TSS, including ID by mobile phone interaction two ends, is made With the COS of flow, between flow interaction terminates, situations such as the flow quantity of generation.If interruption occurs in folk prescription to cause to hand over Mutually improper end, then only interacted by normal side with TSS, and problem side to appear again interacts remaining information after recovering normally Finish.If interruption occur in both sides to cause to interact improper end simultaneously, TSS has found that letter cannot be monitored within the fixed cycle Number, then assert that interaction terminates, the actual connection of both disconnections, when both sides interact again with TSS, interaction again does not complete information.
Step 3.4:No matter supplier or flow user, after interaction terminates, all generate interaction flow information Traffic report, and be stored in corresponding mobile module, so that future query is used.PAT/CAT is produced using the traffic report for generating Raw corresponding integration.
Step 3.5:For TSS, then the flow information for obtaining from PAT/CAT generates corresponding expense.
3. verification process
Share to allow the cellphone subscriber both sides being not familiar with to carry out flow, the technology of most critical is the stream of the present invention Safety certification process in amount shared platform.Detailed verification process is as shown in Figure 7.
For a new supplier, he must be registered on PAT, upon the registration of the flow shared platform, It will obtain an ID, and one for his transparent login key M1.When supplier logs in, TSS meeting bases are carried The ID of donor and its private key M1, generate a public key M2, the public key can be supplied to flow user to be accessed nearby to make With.
For similarly, for flow user, when they succeed in registration, ID and a login private key will be obtained M3.By ID and private key M3, flow user completes to log in, and obtains hotspot list.Afterwards, flow user selects heat The focus for being adapted to connection in point list is easily connected.
The specifying information of user and all of public-key cryptographic keys are all stored in an encrypted form in the data base of server, Before realizing information sharing, flow user needs to consult checking by M2 on TSS, by the both sides for verifying, then can be with Normally carry out information sharing.
4. pricing management
A kind of layer-stepping pricing management mechanism of invention is flat to stimulate supplier and flow user to be used in conjunction with this Platform, and ensure that user's overall utility reaches maximum.Common C flow user, P offer in flow shared platform are provided Person.For invention pricing strategy, it is ensured that
Wherein, qciAnd qpjThe traffic demand and supplier for referring to consumer expects the flow number for providing.What u was indicated For utility function.According to weight ratio fair algorithm and Lagrange relaxation theorem, outflow user global optimum valency is solved Lattice are
Wherein, wciRefer to the weight that flow user i wishes are paid for flow.However, this flow user Price be unified price, need according to COS and user credit grade being adjusted, only guarantee that average price is identical , i.e.,
So the class price of flow user that final flow rate shared platform is given is:
Wherein,
Here siRefer to the COS of flow user i, S for COS sum (if only 2G, 3G and 4G, then S=3).gciRefer to the credit grade of flow user i, GcFor the number of flow user credit grade.pcarrier The flow unit price of operator's offer is provided.As can be seen that the present invention provides handss level price will be less than the valency that operator provides Lattice, meet flow user.
Similarly, for the price of supplier, determined by equation below:
Wherein, sjThe COS of supplier j is referred to, S is the sum of COS (if only 2G, 3G and 4G, S =3).gpjRefer to the credit grade of supplier j, GpFor the number of supplier's credit grade.System a and b are by formula (5) and public affairs Formula (6) is given.Obviously, supplier's price that the present invention is given can effectively transfer its enthusiasm for providing flow.

Claims (9)

1. a kind of flow shared platform, including:Flow supplier's incoming end (Provider Access Terminal, referred to as PAT), flow user incoming end (Consumer Access Terminal, abbreviation CAT) and flow shared server (Traffic Sharing Server, abbreviation TSS), wherein, the flow interaction scenario of CAT and PAT is uniformly controlled by TSS;Its In:
The PAT includes:
The registration login module one for logging in is registered for flow supplier;
For managing the user management module one of subscriber data, password and integration;
For limiting the flow cap setup module that flow supplier provides flow amount;
Module is provided for providing focus for the flow that flow user is accessed;
And for generating the traffic report module one that traffic report is consulted for flow supplier;
The CAT includes:
The registration login module two for logging in is registered for flow user;
For managing the user management module two of subscriber data, password and integration;
Module is used for selecting focus and accessing the flow for using;
And for generating the traffic report module two that traffic report is consulted for flow user;
The TSS includes:
For controlling the registering and logging of CAT and PAT and CAT and PAT being authenticated to guarantee that CAT and PAT sets up connection Access Control module;
For obtaining the stream of the shared concrete condition of flow according to the analysis of history use time, cellphone subscriber ID and shared uninterrupted Amount analysis module;
For obtaining the track following module that flow supplier is connected concrete condition with flow user;
For for flow supplier is with flow user record integration and carries out credit rating according to integration while entering for manager The Point Management Module of row integration inquiry;
For determining according to credit grade and COS convection current amount supplier and the flow user corresponding progressive price of formulation Valency management module;
Characterized in that, in the user management module one, after the shared flow that flow supplier provides is by use, giving and flowing Amount supplier integrate accordingly, and increases on original integration, and by integration the credit grade of flow supplier is improved, so as to The flow that flow supplier provides is set to produce bigger income;In the user management module two, use altogether in flow user After enjoying flow, integrate accordingly to flow user, and increase on original integration, generating corresponding flow by integration makes User's credit grade, when next flow user uses shared flow, according to credit grade flow price to be adjusted.
2. flow shared platform according to claim 1, it is characterised in that the flow cap setup module includes residual stream Amount inquiry and setting flow cap function, make flow supplier understand residual flow situation in time, so that it is configured.
3. flow shared platform according to claim 1, it is characterised in that at the end of flow is interacted, the flow is carried Flow information is generated for module, is on the one hand stored in form traffic report on PAT, on the other hand report what is produced to TSS Flow information situation;The flow generates flow information using module, is on the one hand stored in form traffic report on CAT, On the other hand the flow information situation for producing is reported to TSS;Flow amount is equal in two flow informations.
4. flow shared platform according to claim 1, it is characterised in that finish when flow connection is once shared Afterwards, link information is obtained by track following module, two parties ID of connection every time is obtained by the module, each connection Time, and the shared flow quantity produced by connection every time, the module flow information is used by flow supplier with flow Person both sides provide, if the flow that both sides provide is inconsistent, reason is have a side to exit suddenly or interrupt signal, connection traffic The information of the opposing party's offer is then provided.
5. flow shared platform according to claim 1, it is characterised in that only include that mobile phone is empty in the information of the focus No. ID of user and the type of flow supplier offer flow are provided.
6. flow shared platform according to claim 1, it is characterised in that the TSS is authenticated to CAT and PAT Process is:
The flow supplier new for one, is registered first on PAT, to obtain an ID, and one for He is transparent login private key M1;When flow supplier logs in, TSS can be according to its ID and private key M1, generating one can provide To the public key M that flow user to be accessed nearby is used2
The flow user new for one, is registered first on CAT, to obtain an ID and a login private key M3, by ID and private key M3Complete to log in, and obtain hotspot list.
7. flow shared platform according to claim 6, it is characterised in that the specifying information of the user and all of public affairs Key private key is stored in an encrypted form in the data base of server, and before information sharing is realized, flow user needs By the M on TSS2Consult checking, by the both sides for verifying information sharing can be carried out.
8. flow shared platform according to claim 1, it is characterised in that the pricing management module performs following price Management mode:
The class price of flow user is:
p c i = 1 + α s i S + 1 - β g c i G c + 1 1 + α S S + 1 - β G c + 1 p c a r r i e r , i = 1 , 2 , ... , C
The class price of flow supplier is:
p p j = 1 + α s j S + 1 + β g p j G p + 1 1 + α S S + 1 + β G p G p + 1 m i n i = 1 C { p c i } , j = 1 , 2 , ... , P
Wherein:
α = ( g c i G c + 1 - 1 ) Cp c * + C - Σ i = 1 C g c i G c + 1 ( s i S + 1 + g c i G c + 1 ) CP c * - Σ i = 1 C ( s i S + 1 + g c i G c + 1 )
β = ( s i S + 1 + 1 ) Cp c * - C - Σ i = 1 C s i S + 1 ( s i S + 1 + g c i G c + 1 ) Cp c * - Σ i = 1 C ( s i S + 1 + g c i G c + 1 )
siFor the COS of flow user i, S for COS sum, gciFor the credit grade of flow user i, GcFor The number of flow user credit grade, pcarrierFor the flow unit price that operator provides, C is the individual of flow user in platform Number, P is the number of flow supplier in platform,For global optimum's price of flow user,ωciFor stream The weight that amount user i wishes are paid for flow, qpjFor the flow number that j-th supplier's wish is provided, sjFor flow supplier j COS, gpjFor the credit grade of flow supplier j, GpFor the number of flow supplier's credit grade.
9. the flow shared platform according to claim 1 or 8, it is characterised in that the COS include 2G, 3G and 4G。
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