CN102318389B - Wireless co-existence method based on credit and device thereof - Google Patents

Wireless co-existence method based on credit and device thereof Download PDF

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Publication number
CN102318389B
CN102318389B CN200980156900.2A CN200980156900A CN102318389B CN 102318389 B CN102318389 B CN 102318389B CN 200980156900 A CN200980156900 A CN 200980156900A CN 102318389 B CN102318389 B CN 102318389B
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resource
credit
request
base station
bid
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CN102318389A (en
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邱吉刚
杨峰
徐斌阳
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Nokia Shanghai Bell Co Ltd
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Alcatel Lucent Shanghai Bell Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks

Abstract

In order to solve the problems of resource scrambling, fake leasing and so on, which possibly appear in the present wireless co-existence system based on credit, the invention provides a wireless co-existence method based on credit and the device thereof. On the one hand in the method, when the resource provider performs the resource auction based on requesting credit token, the current resource occupying quantity of the resource requesters is considered synthetically, and the scrambling to the rational resource requests of other resource requesters by the resource requesters that have already occupied much resource is reduced; on the other hand, the resource provider validates the received renting bids of resource requesters, and distributes resource to the resource requesters correctly validated. Thus, the fairness of resource sharing is increased and the communication performance of co-existence community is improved. Preferably, the invention combines the above two aspects, validates the renting bids of resource requesting devices, and among the resource requesting devices whose bids are correctly validated, selects a resource accepting device according to their resource occupying quantity, and performs resource sharing in a wireless co-existence community.

Description

Fiduciary wireless coexistence method and device thereof
Technical field
The present invention relates to wireless communication system, the wireless symbiotic system that especially a plurality of cordless communication networks are formed.
Background technology
Along with multiple wireless communication system based on different agreement, for example digital television broadcasting (DVB), mobile cellular communication, wireless lan (wlan) and wireless MAN various types of wireless networks such as (WiMAX) are at widespread deployment, and it is more and more rare that frequency spectrum resource becomes.In the case, various wireless network is to the shared effective way utilizing limited frequency spectrum resource that becomes of frequency spectrum resource.
In the spectra sharing system, a most crucial part is how limited frequency spectrum resources is dynamically distributed to a plurality of wireless systems.On the one hand, authorizing on the frequency range, the idling-resource that spectra sharing system generally can only opportunistic ground uses uncommitted system still to take carries out transfer of data, and the state that is taken by main system of these resources, namely the busy-idle condition of these resources be at random, dynamic change; Moreover, be based on IP's and the traffic carrying capacity dynamic change data service mostly in the current business that is carried in the spectra sharing system.In the case, if adopt the allocation of radio resources mode of traditional static state, will cause:
1) the current channel utilization of some spectra sharing system is lower than previous default thresholding, and the frequency spectrum resource of namely distributing to these spectra sharing systems can not be fully utilized; 2) the current needed frequency spectrum resource of other spectra sharing system is higher than default thresholding, and namely these systems can not obtain abundant frequency spectrum resource for satisfying its current business load requirement.Desire to address the above problem, be necessary to design a kind of effective frequency spectrum resource dynamic assignment mechanism, thereby realize the coexistence of a plurality of wireless systems.
Cordless communication network can with as yet not by the wireless communication resources of its actual use use or rent to other, the cordless communication network of communication resource deficiency, can take full advantage of frequency spectrum resource like this, improve the availability of frequency spectrum.By the sharing or lease of frequency spectrum resource, a plurality of different wireless communication networks have been formed coexistence corporations (Co-exsitence Community), by the renting mutually of frequency spectrum resource, reach coexistence each other.
In wireless coexistence corporations, how each cordless communication network is reasonably leased with using to idling-resource is a major issue that must solve.In general, do not have a hub scheduler in the coexistence corporations the shared of frequency spectrum carried out overall scheduling, thereby distributed resource-sharing scheme is more attractive solution.At present, two kinds of available resource-sharing modes are arranged: competitive mode and negotiation formula.In competitive mode channel access way at random, for example in the CSMA mode, a plurality of wireless systems are by sending packet separately in this resource, and one or more idle channels (frequency spectrum resource) are shared on dynamic competition ground.But each wireless system produces interference and conflicts in the packet that sends competitively on same Radio Resource meeting between each system, causes the availability of frequency spectrum quite low.In contrast, in consulting the resource-sharing mode of formula, have the idle frequency spectrum resource cordless communication network (resource provider) can with each cordless communication network (resource requestor) that lacks frequency spectrum resource providing/renting and hold consultation frequency spectrum resource in real time.Like this, can guarantee resource recipient use of monopolizing to this idle frequency spectrum resource in the time of deciding through consultation, make that this frequency spectrum resource has the higher availability of frequency spectrum.
For resource negotiation, stipulated that at IEEE802.16h and IEEE802.22 a kind of dynamic resource based on credit token (Credit Token is called for short CT) provides/leasing mechanism, as shown in Figure 1.At first, has the resource provider of idling-resource to other each resource requestor of coexistence corporations, it is the network equipment of frequency spectrum resource of these networks of management such as base station, broadcasting station of other wireless networks, send the resource information of lease, the relevant information that can comprise the frequency spectrum resource of Gong leasing in this information, for example frequency range, rent time started and concluding time etc., this information can also be specified the minimum credits token value (Minimum Number of Credit Token is called for short MNCT) of renting this resource.After each resource requestor is received this information, judge whether it needs to rent this resource, and judge that the credit token self held is whether greater than the minimum credits token value of renting this resource of resource provider appointment.If judge to be, then send resource lease request message and respond resource provider.The for example resource requestor among Fig. 11 and resource requestor 2, they send to resource provider with a resource lease request as replying of resource information of lease respectively, wherein, the relevant information that can comprise resource requestor in this request, and to the bid (representing with the credit token value) of this resource.When resource provider receives the resource lease request that a plurality of resource requestor send in a period of time after, it will elect the resource recipient as to a highest resource requestor of this resource bid, for example the resource requestor among Fig. 11.Then, resource provider sends respectively to two resource requestor 2 and 1 and rents answer, and it is not selected to inform resource requestor 2, and it is selected to inform resource requestor 1.Resource requestor 2 can withdraw from consults or asks to rent other resources.And the credit token value that resource requestor 1 can be decided through consultation it is paid resource provider; After the credit token value of resource provider acceptance from resource provider 1, this resource is rented to resource requestor 1; At last, resource requestor 1 obtains the resource that resource provider rents and is used.
Though above-mentioned resource provides/and leasing mechanism can guarantee to rent the use of monopolizing of resource, should mechanism have very important shortcoming in actual applications.On the one hand, some greedy resource requestor can be seized ample resources by paying a large amount of credit token value at short notice, makes the rational resource request of other resource requestor be not being met.This situation is similar to a kind of resource and grabs, and has influenced the fairness of resource-sharing and the communication performance of whole coexistence corporations.
On the other hand, this mechanism lacks effectively sincere supervision and to non-honest punitive measures.Particularly, a non-honest resource requestor may be maked a promise to the credit token value more with resource provider at negotiation phase, and after resource provider believed the bid of this resource requestor, can refusal other but resource requestor lower honest bid are provided, the person's that causes the resource provider resource can't be rented the resource requestor to these honest bids.On the contrary, non-honest resource requestor has then obtained the right to use of frequency spectrum resource by the mode of swindle.In the case, the fairness of resource-sharing reduces greatly, and has influenced the communication performance of the whole corporations that coexist.
Summary of the invention
Providing/leasing a kind of rational negotiation mechanism is provided for Radio Resource, avoid the greediness of resource to seize, and provide a kind of effective sincere supervision to reach non-honest punitive measures, be very necessary for improving resource distributional equity and multisystem coexistence performance.
In order to satisfy above one or more technical needs preferably, according to a first aspect of the invention, providing a kind of provides in the equipment for the method for carrying out resource-sharing in the resource that realizes the wireless system coexistence, wherein, comprise the steps: that i. is to each resource request device broadcasts resource information of lease; Ii receives from resource lease request at least one resource request equipment, that contain the lease bid, and determines the resource occupation information of at least one resource request equipment; Iii. according to lease bid and the described resource occupation information of described at least one resource request equipment, therefrom select the resource accepting device.
Preferably, resource provides the resource occupation information of equipment based on described at least one resource request equipment, use default discounting function, calculate the credit bid allowance value of described at least one resource request equipment, then select the resource request equipment of credit bid allowance value maximum as described resource accepting device.
Correspondingly, according to a second aspect of the invention, provide a kind of and in the resource request equipment of wireless symbiotic system, carried out resource management method, wherein, the resource occupation information of other each resource request equipment of this resource request plant maintenance, comprise the steps: I. receive from described resource provide equipment, carry out the resource accepting device selected handle lease relevant information; II. according to the described relevant information of leasing, upgrade the resource occupation information of described resource accepting device.
Preferably, resource request equipment at first receives the resource information of lease that device broadcasts is provided from described resource.
And the present invention also provides a kind of resource at wireless symbiotic system to provide in the equipment to be used for the device that carries out resource-sharing, and wherein, comprising: dispensing device is used for to each resource request device broadcasts resource information of lease; Processing unit receives from resource lease request at least one resource request equipment, that contain the lease bid, and determines the resource occupation information of at least one resource request equipment; Choice device is used for lease bid and described resource occupation information according to described at least one resource request equipment, therefrom selected resource accepting device.
Simultaneously, the present invention also provides a kind of device that carries out resource management at the resource request equipment of wireless symbiotic system, wherein, the resource occupation information of other each resource request equipment of this resource request plant maintenance, comprise: first receiving device is used for receiving the relevant information of leasing that selected processing equipment, that carry out the resource accepting device is provided from described resource; Updating device is used for according to the described relevant information of leasing, and upgrades the resource occupation information of described resource accepting device.
Preferably, resource request equipment also comprises the information of lease receiving system, is used for receiving the resource information of lease that device broadcasts is provided from described resource.
In order to satisfy above one or more technical needs preferably, according to a third aspect of the present invention, provide a kind of resource of wireless system coexistence that realizes to provide in the equipment for the method for carrying out resource-sharing, wherein, this method comprises the steps: that a. is to each asset management device broadcast resource information of lease; B. receive from least one resource request information at least one resource request equipment, that contain the lease bid, and judge whether the lease bid of each resource request equipment is true; C. at least one the resource request equipment to request credit information falseness carries out corresponding credit punishment, and selectes described resource accepting device from real at least one the resource request equipment of request credit information.
Preferably, for real at least one the resource request equipment of request credit information, the resource occupation information that resource provides equipment to determine at least one resource request equipment, and according to the lease of at least one resource request equipment bid and described resource occupation information, therefrom selected resource accepting device.
Correspondingly, according to a fourth aspect of the present invention, provide a kind of resource request equipment at wireless symbiotic system to carry out resource management method, wherein, this resource request plant maintenance resource provides the credit token information of equipment and other each resource request equipment, this method comprises the steps: A. receives provides equipment from resource credit token punishment relevant information, and the relevant information of the resource request equipment that catches hell; B. the corresponding punishment of deduction credit token from the credit token of the resource request equipment of this falseness bid of himself safeguarding, and increase corresponding offset to the credit of this resource request equipment; C. receive the relevant information of leasing of carrying out the selected processing of resource accepting device that equipment is provided from resource; D. according to the described relevant information of leasing, upgrade the credit token information that described resource provides equipment and resource accepting device.
Preferably, resource request equipment at first receives the resource information of lease that device broadcasts is provided from described resource.
And the present invention also provides a kind of resource at wireless symbiotic system to provide in the equipment to be used for the device that carries out resource-sharing, and wherein, this device comprises: dispensing device is used for to each asset management device broadcast resource information of lease; First demo plant is used for receiving from least one resource request information at least one resource request equipment, that contain the lease bid, and verifies whether the lease bid of each resource request equipment is true; Choice device carries out corresponding credit punishment at least one the resource request equipment to request credit information falseness, and selectes described resource accepting device from real at least one the resource request equipment of request credit information.
In addition, the present invention also provides a kind of resource request equipment at wireless symbiotic system to be used for the device that carries out resource management, wherein, this resource request plant maintenance resource provides the credit information of equipment and other each resource request equipment, this device comprises: the punishment information receiver is used for receiving the punishment relevant information that equipment is provided from resource; The punishment processing unit, be used for according to described punishment relevant information, this resource request equipment, resource of catching hell of upgrading the plant maintenance of this resource request provide the credit information of equipment and other each resource request equipment, and increase corresponding offset to the credit of this resource request equipment; First receiving device is used for receiving the relevant information of leasing of carrying out the selected processing of resource accepting device that equipment is provided from resource; Updating device is used for according to the described relevant information of leasing, and upgrades the credit token information that described resource provides equipment and resource accepting device.
Preferably, resource request equipment also comprises the information of lease receiving system, is used for receiving the resource information of lease that device broadcasts is provided from described resource.
According to embodiments of the invention, on the one hand, resource provider is when carrying out the resource auction based on request credit token, take all factors into consideration the present resource occupation amount of resource requestor, reduce the resource requestor occupied more resource seizing the reasonable resource request of other resource requestor, increase the fairness of resource-sharing, improved the communication performance of coexistence corporations.On the other hand, resource provider verifies the lease bid of the resource requestor that receives, and the resource requestor that checking is passed through is carried out resource and distributed, and has increased the fairness of resource-sharing, has improved the communication performance of coexistence corporations.Preferably, one embodiment of the present of invention are in conjunction with above two aspects, at first the lease of resource request equipment bid is verified, according to the selected resource accepting device of its resource occupation letter amount, in wireless coexistence corporations, carried out resource-sharing for the real resource apparatus of checking bid.
Description of drawings
By reading the detailed description of doing with reference to the following drawings that non-limiting example is done, above and other feature, purpose and advantage of the present invention will become more apparent:
Fig. 1 is existing a kind of flow chart for the resource share method of realizing the wireless system coexistence;
Fig. 2 is according to one embodiment of present invention, handles by the discounting of value of leass and avoids the greedy plunder of resource, realizes the flow chart of the resource share method of the better coexistence of wireless system;
Fig. 3 is according to another embodiment of the invention, by checking and the punishment to the lease bid, thereby realizes the better flow chart of the resource share method of coexistence of wireless system;
Fig. 4 is according to one embodiment of present invention, and resource provides being used in the equipment to carry out the block diagram of the device of resource-sharing;
Fig. 5 is according to one embodiment of present invention, is used for carrying out the block diagram of the device of resource management in the resource request equipment;
Fig. 6 is according to another embodiment of the invention, and resource provides being used in the equipment to carry out the block diagram of the device of resource-sharing;
Fig. 7 is according to another embodiment of the invention, is used for carrying out the block diagram of the device of resource management in the resource request equipment.
Embodiment
Following with reference to accompanying drawing 2 to Fig. 4, from the angle of method the specific embodiment of the present invention is described in detail.
First embodiment
Following with reference to Fig. 2, the embodiment according to one aspect of the invention is described.Wherein, this is wireless, and coexistence corporations comprise some cordless communication networks, and they can be based on different communication protocol, and belong to different operators.Present embodiment is with in the wireless coexistence corporations, and digital TV broadcasting network is that example describes to the idling-resource that a cellular mobile communication networks, WLAN (wireless local area network) and wireless MAN provide this digital TV broadcasting network to have.Be appreciated that each network in these wireless corporations that coexist has certain credit token value (Credit Tokens) respectively.The initial credit token value that each network contains is respectively decided by operator's negotiation of each network when network design.The credit token can exchange circulation between each network.
At first, in step S10, resource provides equipment, the i.e. management equipment device broadcasts station A of this digital TV broadcasting network, resource request equipment in the same coexistence corporations, be the access node C of base station B, WLAN (wireless local area network) of cellular mobile communication networks and wireless MAN base station D send the resource information of lease, the relevant information that comprises the resource R that Gong leases in this information, for example the frequency range of R, rent time started and concluding time etc., can also comprise the minimum credits token value MNCT that rents this resource R of broadcasting station A appointment in this information.
Base station B, access node C and base station D receiving system receive this resource information of lease.Then, judge whether it needs to rent this resource R, and judge from the credit token of holding whether greater than the minimum credits token value MNCT that rents this resource of broadcasting station A appointment.Concrete, base station B and access node C judge that it needs this resource R, and the credit token of holding separately is all greater than the requirement of broadcasting station A, base station B and access node C become resource requestor, they send to broadcasting station A with a resource lease request (abbreviation resource request) as replying of resource information of lease respectively, wherein, comprise the relevant information of base station B and access node C in this request respectively, and to the bid of this resource (with the valuation of credit token value) N CT_BAnd NCT_C.And base station D does not need this resource, and then it is not replied.
In step S11, in the time that predetermined reception is replied, broadcasting station A receive base station B and access node C, contain separately the resource lease request with the lease bid of credit token valuation.
Then, broadcasting station A gets access to base station B and access node C, the i.e. present resource occupation information S of cellular mobile communication networks and WLAN (wireless local area network) Actul_BAnd S Actul_CPreferably, each wireless network in the coexistence corporations is all being safeguarded the frequency spectrum resource quantity such as frequency range of the Radio Resource that each network takies at present.This resource occupation information can be the information of the frequency spectrum rented of a network, also can be that it is using, comprise frequency spectrum that it is had jurisdiction over and the total amount of its frequency spectrum of renting, etc.Be appreciated that broadcasting station A also can get access to the resource occupation information of each wireless network that carries out resource request by third party's resource database of safeguarding the resource occupation information of all-network in the wireless corporations that coexist.In another case, base station B and access node C add base station B and the present resource occupation information of access node C respectively in its resource lease request.
Then, in step S13, broadcasting station A therefrom selectes the resource accepting device according to lease bid and the resource occupation information of base station B and access node C.
Concrete, in step S130, broadcasting station A determines the credit bid allowance value of base station B and access node C based on the shared frequency spectrum quantity of base station B and access node C.Present embodiment uses a discounting function f Discount(N Ct, S Actual, S Threshhold) determine:
f discount ( N CT , S actual , S threshhold ) = N CT , S actual ≤ S threshhold N CT × ( 1 - S actual - S threshhold S actual ) , S actual > S threshhold - - - ( 2 )
Wherein, S ThreshholdBe to judge a whether excessive threshold value that takies wireless frequency spectrum of this network: as the shared frequency spectrum quantity S of network ActualDo not surpass S ThreshholdThe time, its request credit token allowance value is identical with its request credit token value; As frequency spectrum quantity S ActualSurpass S ThreshholdThe time, its request credit token allowance value will be in proportion less than its request credit token value, make the resource requestor of having occupied more frequency spectrum resource must pay more credit token value like this and come and other resource requestor competition frequency spectrum resources, reduced the resource of these resource requestor and grabbed.Wherein, S ThreshholdCan be identical for each wireless network, so relatively more fair; It is different that this threshold value also can be in other considerations, for example determines according to the traffic carrying capacity weight of network itself.Be appreciated that, above discounting function is not unique, one of ordinary skill in the art can be according to characteristics such as the traffic carrying capacity of the coexistence corporations network environment of reality, each wireless network and credits thereof, determine rational, as to determine request credit token allowance value method, this specification is not done at this and is given unnecessary details.
For base station B and access node C, broadcasting station A calculates both request credit allowance value f respectively Discount(N Ct_B, S Actual_B, S Threshhold_B) and f Discount(N Ct_C, S Actual_C, S Threshhold_C).For example, in the present embodiment, base station B and access node C ask with 50 credit token value and 40 credit token value respectively, and after the discounting function calculation, the request credit token allowance value of base station B and access node C is respectively 25 and 30.
Then, in step S131, broadcasting station A therefrom selects the access node C of request credit token allowance value maximum as the resource accepting device according to the size of base station B and access node C request credit token allowance value.Broadcasting station A sends to base station B and access node C and rents answer, informs and rents the result.
Then, access node C pays 40 credit token value of its promise.
In step S15, broadcasting station A accepts 30 request credit token allowance values in the 40 credit token value of access node C, and frequency spectrum resource is distributed to access node C, and upgrades the resource occupation information of the access node C that broadcasting station A safeguards.
In step S16, broadcasting station A leases other network base stations B and the base station D that relevant information sends to these wireless corporations that coexist with the frequency spectrum resource amount that provides, the relevant information of access node C etc., so that it upgrades the resource occupation information of access node C.In another case, broadcasting station A also can lease this relevant information and send to as third party's resource database another resource request equipment, aforementioned, makes it upgrade the resource occupation information of access node C.
In addition, because the request credit token allowance value of access node C is less than request credit token value, leasing of broadcasting station A also comprises credit compensation relevant information in the relevant information, is used for auxiliary network base station B and base station D separately credit token value is compensated.This credit compensation relevant information comprises the average of the difference of 40 request credit token value and 30 request credit token allowance values, namely
N CT - f discount ( N CT , S actual , S threshhold ) N n - 2 - - - ( 2 )
N wherein nBe the quantity of the wireless network in the wireless corporations that coexist.In the present embodiment, this result of calculation is 5.
In step S17, base station B and base station D receive from broadcasting station A, broadcasting station A selected access node C and to the relevant information of leasing of its resource R that provides; And because the request credit token allowance value of access node C is less than request credit token value, this is leased relevant information and also comprises credit compensation relevant information.
In step S18, base station B and base station D upgrade resource occupation information in the frequency spectrum resource quantity its maintenance, that each network takies at present, access node C respectively, particularly, base station B and base station D increase corresponding frequency spectrum resource R with the resource occupation of access node C.So that when providing frequency spectrum resource in the future, consider the real-time frequency spectrum occupancy of access node C.
In step S19, base station B and base station D compensate relevant information according to credit, and oneself credit token value is compensated.Particularly, base station B and base station D can directly accept the average 5 that 40 of access node C asks the difference of credit token value and 30 request credit token allowance values.Be appreciated that, base station B and base station D also can based on receive among the step S16, access node C rents the request credit token allowance value that the request credit token value of frequency spectrum resource and broadcasting station A accept to broadcasting station A, the average 5 of the difference of computation requests credit token value and request credit token allowance value voluntarily, and accept it and calculate the offset 5 of gained as the increment of its credit token value.
At present embodiment, under the situation of request credit token allowance value less than request credit token value, resource recipient spends request credit token value and leases resource requirement, resource provider has obtained request credit token allowance value, difference between these two values is by being shared with other resource requestor in the coexistence corporations, and this distribution principle has certain fairness.Be appreciated that the present invention is not limited to this, in another case, resource provider also can exclusively enjoy this difference, it is not given other resource request equipment.
Be appreciated that broadcasting station A is that resource provides equipment in this resource lease process, with it relatively, the access node of other wireless networks, base station etc. are resource request equipment; In other resource lease processes, the management equipment of other wireless networks, for example access node C can provide its frequency spectrum resource for lease, and is at this moment on the other side, and equipment such as broadcasting station A, base station B and base station D become resource request equipment.
More than from the angle of method present embodiment is described.Similarly, of the present invention this also can be realized at device product on the one hand, will sketch from the angle of device below.
Resource according to present embodiment provides equipment, and for example broadcasting station A comprises one for the device 1 that carries out resource-sharing, and wherein, this device comprises dispensing device 10, processing unit 11, choice device 12, distributor 13 and generator 14.Resource request equipment, for example base station B, access node C and base station D comprise a device 2 that carries out resource management, wherein, this device comprises first receiving device 20 and updating device 21.
At first, dispensing device 10 is used for the resource information of lease of lease frequency spectrum resource R to each base station B, access node C and base station D broadcasting.
The information of lease receiving system of base station B and access node C receives this resource information of lease.
Then, base station B and access node C need to determine lease frequency spectrum resource R, and it sends resource lease request to broadcasting station A, contain the lease bid N with for example credit token valuation in this resource lease request respectively CT_BAnd N CT_C
Then, processing unit 11 receives the resource lease request that contains the lease bid from base station B and access node C.Processing unit is also determined the resource occupation information S of base station B and access node C Actual_BAnd S Actual_CPreferably, each wireless network in the coexistence corporations is all being safeguarded the frequency spectrum resource quantity such as frequency range of the Radio Resource that each network takies at present.
Subsequently, choice device 12 is therefrom selected the resource accepting device according to lease bid and the resource occupation information thereof of base station B and access node C.
Concrete, choice device 12 comprises a definite device 120, is used for the resource occupation information S based on base station B and access node C Actual_BAnd S Actual_C, use default discounting function f Discount(N Ct, S Actual, S Threshhold), determine the credit bid allowance value f of each resource request equipment Discount(N Ct_B, S Actual_B, S Threshhold_B) and f Discount(N Ct_C, S Actual_C, S Threshhol_C).The definition of this function can be with reference to the description among the above method embodiment.
Then, choice device 12 therefrom selects the access node C of credit bid allowance value maximum as described resource accepting device according to the credit bid allowance value of base station B and access node C.
Then, distributor 13 is accepted the credit bid allowance value that access node C provides, and resource is distributed to access node C, and upgrade the resource occupation information of access node C.
Afterwards, generator 14 will be leased base station B and the base station D that relevant information offers this wireless symbiotic system.When the credit of access node C bid allowance value during less than request credit token value, lease relevant information and also comprise credit compensation relevant information.
The relevant information of leasing that the first receiving device 20 of base station B and base station D receives from selected processing broadcasting station A, that carry out the resource accepting device.
Then, updating device 21 upgrades the resource occupation information of broadcasting station A and access node C according to leasing relevant information.Concrete, updating device 21 increases corresponding frequency spectrum resource R with the resource occupation of access node C.
When leasing relevant information when also comprising credit compensation relevant information, device 2 also comprises compensation arrangement 22, is used for increasing according to credit compensation relevant information the credit of this resource request equipment.
Second embodiment
Following with reference to Fig. 3, according to a further aspect of the present invention embodiment is described.Wireless coexistence corporations in this enforcement and participate in the configuration of each wireless network of coexistence and state and above first embodiment in similar.
At first, in step S10, broadcasting station A manages separately to the base station B of cellular mobile communication networks, the access node C of WLAN (wireless local area network) and the base station D of wireless MAN etc. that the network equipment of network spectrum resource sends the resource information of lease, and this information comprises specifies the minimum credits token value MNCT that rents resource R.
Base station B, access node C and base station D receive this resource information of lease.Then, judge whether it needs to rent this resource R, and judge from the credit token of holding whether greater than the minimum credits token value MNCT that rents this resource of broadcasting station A appointment.Concrete, base station B, access node C and base station D judge needs this resource, and the big token of credit that base station B and access node C hold is in the desired MNCT of broadcasting station A, but the credit token that base station D holds is less than the desired MNCT of broadcasting station A.In the present embodiment, base station D is a non-honest resource requestor, and it pretends to claim to have more credit token value itself, wishes to destroy resource-sharing this time.In this case, base station B, access node C and base station D become resource requestor, they send to broadcasting station A with a resource lease request (abbreviation resource request) as replying of resource information of lease respectively, wherein, the relevant information that comprises base station B, access node C and base station D in this request respectively, and to the bid of this resource (request credit token value) N CT_B, N CT_CAnd N CT_DWherein, N CT_DBe the non-honest bid of base station D, in fact base station D does not have so many credit token value.
In step S110, in the time that predetermined reception is replied, broadcasting station A receive base station B, access node C and base station D, contain separately with the value of leass information of credit token valuation and the resource lease request of resource occupation information.
Then, in step S111, whether broadcasting station A judges the lease bid of base station B, access node C and base station D, namely ask the credit token true.
Concrete, in step S1110, broadcasting station A gets access to the reference credit token value of base station B, access node C and base station D.Preferably, coexistence each wireless network in the corporations is all being safeguarded the credit token value that each network is held at present, and then A credit token value that base station B, access node C and the base station D of its maintenance held at present in broadcasting station is as the reference credit token value of base station B, access node C and base station D.Be appreciated that broadcasting station A also can get access to the credit token value of each wireless network that carries out resource request by third party's credit database of safeguarding the credit token value of all-network in the wireless corporations that coexist.
Then, in step S1111, the request credit token value that comprises in the reference credit token value of broadcasting station A comparison base station B, access node C and base station D and the resource request from base station B, access node C and base station D that broadcasting station A receives: if the request credit token value of resource requestor is not more than the credit token value that it is held, then its bid is true; Otherwise then its bid is untrue.By comparing, broadcasting station A finds that the request credit token of base station B and access node C is real; The request credit token of base station D is untrue.
Then, in step S1112, for the false base station D of request credit token information, broadcasting station A deducts punishment credit token value N from credit token value local maintenance, that base station D holds at present DishonestyThis penalty value N DishonestyBe a predetermined penalty value N PredefinedIn two values of credit token value of holding at present with base station D less one.Predetermined penalty value N PredefinedCan be that coexistence each wireless network in the corporations decides through consultation that in advance it can be identical for each wireless network, also can be based on the credit rating of each wireless network and for each wireless network difference.
And the deducted punishment credit of base station D token value compensates to other all resource requestor in these wireless corporations that coexist.Concrete, broadcasting station A increases corresponding offset N to the credit token value of this broadcasting station A Dishonesty/ N n-1, wherein, N nBe the quantity of the wireless network in the wireless corporations that coexist.
And in step S1113, broadcasting station A will punish relevant information, and the relevant information of base station D sends to base station B, access node C and the base station D of this wireless symbiotic system.This information shows that base station D has carried out non-honest bid in this resource-sharing; And indication, deduction punishment credit token value the credit token that base station B, access node C should hold at present from the base station D of its maintenance, and increase corresponding offset for oneself credit token; Base station D deduction self punishment credit.In another case, broadcasting station A also can the punishment relevant information send to as third party's credit database another resource request equipment, aforementioned, make its from the credit token that the base station D of its maintenance holds at present, deduct punishment credit token value with and from the credit token of base station B, access node C corresponding increase increase corresponding offset.
Then, in step S1114, base station B, access node C and base station D receive the punishment relevant information from broadcasting station A, and the relevant information of the base station D that catches hell.
Then, in step S1115, base station B and access node C be deduction punishment credit token amount N from credit that safeguard, this base station D Dishonestx, and increase corresponding offset N to the credit token of this resource request equipment Dshonesty/ N n-1.In step S1116, base station D deduction self punishment credit token N Dishonesty, and withdraw from negotiation.
Afterwards, in step S13, broadcasting station A according to its value of leass with the valuation of credit token, therefrom selectes the adequate resources accepting device for the request real base station B of credit token value and access node C.Like this, avoid the false resource request of resource requestor, increased the fairness of resource-sharing, improved the communication performance of coexistence corporations.This selection can for example be selected according to the request credit token value size of base station B and access node C based on any fiduciary selection resource recipient's method.
In a preferred embodiment, in step S130, broadcasting station A can be based on the method for first embodiment description, based on the resource occupation information of determining base station B and access node C and request credit token value thereof, determine base station B and access node C request credit token allowance value, and then the higher access node C of selected request credit token allowance value as the resource accepting device.Detailed operational processes flow process can not carried out unnecessary description at this referring to above first embodiment.
Especially, in step S131, broadcasting station A sends to base station B and access node C and rents answer, informs and rents result and separately request credit token value, verifies to base station B with request credit token value, resource occupation information or request credit token allowance value to access node C.
Then, in step S14, base station B can carry out following at least one verification operation:
The credit token value that-all-network safeguarded based on base station B is held at present, whether be less than or equal to the credit token value that it is held at present by the request credit token value of judging access node C, whether the lease bid behavior of checking access node C exists deceptive practices;
The resource occupation information of-each network of safeguarding based on base station B, the checking broadcasting station based on the resource occupation information of access node C whether correct;
The resource occupation information of-each network of safeguarding based on base station B is calculated the request credit token allowance value of access node C, and whether the request credit token allowance value of checking access node C is correct.
If the checking of the access node C of base station B is not passed through, the request credit token value of namely judging access node C is untrue, and/or resource occupation information, and/or request credit token allowance value is incorrect, then base station B can initiate an arbitration/voting process, so that its doubting of authenticity to access node C is offered broadcasting station A.Broadcasting station A can further take other measure, verifies authenticity or the correctness of the information of access node C, and non-honest resource requestor is punished that present embodiment is not done at this and given unnecessary details.
If the checking of the access node C of base station B is passed through, the result that it will be verified feeds back to broadcasting station A.
In step S15, broadcasting station A determines this resource is leased to access node C, it accepts 30 request credit token allowance values in the 40 credit token value of access node C, and frequency spectrum resource is distributed to access node C, and upgrades the resource occupation information of the access node C that broadcasting station A safeguards.
In step S16, broadcasting station A leases other network base stations B and the base station D that relevant information sends to these wireless corporations that coexist with the frequency spectrum resource amount that provides, the relevant information of access node C etc., so that it upgrades the resource occupation information of access node C.
In step S17, base station B and base station D receive from broadcasting station A, broadcasting station A selected access node C and to the relevant information of leasing of its resource R that provides; And because the request credit token allowance value of access node C is less than request credit token value, this is leased relevant information and also comprises credit compensation relevant information.
In step S18, base station B and base station D upgrade resource occupation information in the frequency spectrum resource quantity its maintenance, that each network takies at present, access node C respectively, particularly, base station B and base station D increase corresponding frequency spectrum resource R with the resource occupation of access node C.So that when providing frequency spectrum resource in the future, consider the real-time frequency spectrum occupancy of access node C.
In step S19, base station B and base station D compensate relevant information according to credit, and oneself credit token value is compensated.Particularly, base station B and base station D can directly accept the average 5 that 40 of access node C asks the difference of credit token value and 30 request credit token allowance values.Be appreciated that, base station B and base station D also can based on receive among the step S16, access node C rents the request credit token allowance value that the request credit token value of frequency spectrum resource and broadcasting station A accept to broadcasting station A, the average 5 of the difference of computation requests credit token value and request credit token allowance value voluntarily, and accept it and calculate the offset 5 of gained as the increment of its credit token value.
Especially, in step S20, base station B and base station D be according to leasing relevant information, upgrades the credit token value of that base station B and base station D safeguard, broadcasting station A and access node C, namely the two added and deducts the credit token value that broadcasting station A obtains loses with access node C respectively.When leasing relevant information when also comprising credit compensation relevant information, base station B and base station D also upgrade the credit token value plant maintenance of this resource request, each resource request equipment, namely add corresponding offset, also increase corresponding offset to this resource request equipment
As seen, in the present embodiment, except the authenticity verification of the request credit token of the resource requestor of broadcasting station A that resource is provided, coexistence corporations also adopt distributed means, to the authenticity of this coexistence other resource requestor in corporations to selected resource recipient's request credit token value, or the correctness of resource occupation information, or the correctness of request credit token allowance value is verified, carry out resource and distribute verifying correct resource requestor, increase the fairness of resource-sharing, improved the communication performance of coexistence corporations.
More than from the angle of method present embodiment is described.Similarly, of the present invention this also can be realized at device product on the one hand, will sketch from the angle of device below.
Resource provides equipment, and for example broadcasting station A comprises be used to the device 1 ' that carries out resource-sharing, wherein, comprises dispensing device 10 ', the first demo plant 11 ' and the choice device 12 '.Resource request equipment, for example base station B, access node C and base station D comprise be used to the device 2 ' that carries out resource management, wherein, comprise punishment information receiver 20 ', punishment processing unit 21 ', first receiving device 24 ' and updating device 25 '.
At first, the dispensing device 10 ' of broadcasting station A sends the resource information of lease to base station B, access node C and base station D.
The information of lease receiving system of base station B, access node C and base station D receives this resource information of lease.
Whether then, base station B, access node C and base station D judge respectively whether it needs to rent this resource R, and judge from the credit token of holding greater than the minimum credits token value MNCT that rents this resource of broadcasting station A appointment.Concrete, base station B, access node C and base station D judge needs this resource, and the big token of credit that base station B and access node C hold is in the desired MNCT of broadcasting station A, but the credit token that base station D holds is less than the desired MNCT of broadcasting station A.In the present embodiment, base station D is a non-honest resource requestor, and it pretends to claim to have more credit token value itself, wishes to destroy resource-sharing this time.In this case, base station B, access node C and base station D become resource requestor, they send to broadcasting station A with a resource lease request information (abbreviation resource request information) as replying of resource information of lease respectively, wherein, the relevant information that comprises base station B, access node C and base station D in this request respectively, and to the bid of this resource (request credit token value) N CT_B, N CT_CAnd N CT_DWherein, N CT_DBe the non-honest bid of base station D, in fact base station D does not have so many credit token value.
Then, in the time that predetermined reception is replied, first demo plant 11 ' of broadcasting station A receive base station B, access node C and base station D, contain separately with the value of leass information of credit token valuation and the resource lease request of resource occupation information.
Whether first demo plant 11 ' is judged the lease bid of base station B, access node C and base station D, namely ask the credit token true.
Concrete, first demo plant 11 ' gets access to the reference credit token value of base station B, access node C and base station D.Preferably, coexistence each wireless network in the corporations is all being safeguarded the credit token value that each network is held at present, and then first demo plant 11 ' credit token value that base station B, access node C and the base station D of its maintenance held at present is as the reference credit token value of base station B, access node C and base station D.
Then, the request credit token value that comprises in the reference credit token value of first demo plant, 11 ' comparison base station B, access node C and base station D and the resource request from base station B, access node C and base station D that broadcasting station A receives: if the request credit token value of resource requestor is not more than the credit token value that it is held, then its bid is true; Otherwise then its bid is untrue.By comparing, broadcasting station A finds that the request credit token of base station B and access node C is real; The request credit token of base station D is untrue.
Then, for the false base station D of request credit token information, first demo plant 11 ' is deducted punishment credit token value N from credit token value local maintenance, that base station D holds at present Dishonesty
And the deducted punishment credit of base station D token value compensates to other all resource requestor in these wireless corporations that coexist.Concrete, first demo plant 11 ' increases corresponding offset N to the credit token value of this broadcasting station A Dishoesty/ N n-1, wherein, N nBe the quantity of the wireless network in the wireless corporations that coexist.
And first demo plant 11 ' will be punished relevant information, and the relevant information of base station D sends to base station B, access node C and the base station D of this wireless symbiotic system.This information shows that base station D has carried out non-honest bid in this resource-sharing; And indication, deduction punishment credit token value the credit token that base station B, access node C should hold at present from the base station D of its maintenance, and increase corresponding offset for oneself credit token; Base station D deduction self punishment credit.
Then, the punishment information receiver 20 ' reception of base station B, access node C and base station D is from the punishment relevant information of broadcasting station A.
Then, punishment processing unit 21 ' deduction punishment credit token amount N from credit that safeguard, this base station D Dishonesty, and increase corresponding offset N to the credit token of this resource request equipment Dishonesty/ N n-1.Base station D deduction self punishment credit token N Dishonesty, withdraw from negotiation.
Afterwards, the choice device 12 ' of broadcasting station A according to its value of leass with the valuation of credit token, is therefrom selected the adequate resources accepting device for the request real base station B of credit token value and access node C.Like this, avoid the false resource request of resource requestor, increased the fairness of resource-sharing, improved the communication performance of coexistence corporations.This selection can for example be selected according to the request credit token value size of base station B and access node C based on any fiduciary selection resource recipient's method.
In a preferred embodiment, broadcasting station A can be based on the method for first embodiment description, based on the resource occupation information of determining base station B and access node C and request credit token value thereof, determine base station B and access node C request credit token allowance value, and then the higher access node C of selected request credit token allowance value as the resource accepting device.In this case, device 1 ' also comprises second demo plant 13 ', distributor 13 ' and generator 14 '; Device 2 ' also comprises second receiving system 22 ' and the 3rd demo plant 23 '.
Concrete, choice device 12 ' comprises a definite device 120 ', is used for the resource occupation information S based on base station B and access node C Actual_BAnd S Actual_C, use default discounting function f Discount(N Ct, S Actual, S Threshhold), determine the credit bid allowance value f of each resource request equipment Discount(N Ct_B, S Actual_B, S Threshhold_B) and f Discount(N Ct_C, S Actual_C, S Threshhold_C).The definition of this function can be with reference to the description among above first embodiment.
Then, choice device 12 ' therefrom selects the access node C of credit bid allowance value maximum as described resource accepting device according to the credit bid allowance value of base station B and access node C.
Second demo plant 13 ' of broadcasting station A sends to base station B and access node C and rents answer, inform and rent result and request credit token value separately, verify to base station B with request credit token value, resource occupation information or request credit token allowance value to access node C.
Second receiving system 22 ' of base station B receives request credit token value, resource occupation information or the request credit token allowance value of access node C.
Then, whether the request credit token information of the described resource accepting device of the 3rd demo plant 23 ' checking of base station B is true.
If the checking of the access node C of base station B is passed through, the choice device 12 ' of broadcasting station A is determined to elect access node C as the resource accepting device so.
Then, distributor 13 ' is accepted the credit bid allowance value that access node C provides, and resource is distributed to access node C, and upgrade the resource occupation information of access node C.
Afterwards, generator 14 ' will be leased base station B and the base station D that relevant information offers this wireless symbiotic system.When the credit of access node C bid allowance value during less than request credit token value, lease relevant information and also comprise credit compensation relevant information.
The relevant information of leasing that the first receiving device 24 ' of base station B and base station D receives from selected processing broadcasting station A, that carry out the resource accepting device.
Then, updating device 25 ' upgrades the resource occupation information of broadcasting station A and access node C according to leasing relevant information.Concrete, updating device 21 increases corresponding frequency spectrum resource R with the resource occupation of access node C.
Updating device 25 ' also according to leasing relevant information, upgrades the credit token information of broadcasting station A and access node C, namely the two is added and deducts the credit token value that broadcasting station A obtains loses with access node C respectively.
When leasing relevant information when also comprising credit compensation relevant information, device 2 also comprises compensation arrangement 26 ', is used for increasing according to credit compensation relevant information the credit of this resource request equipment.
If the checking of the access node C of base station B is not passed through, the request credit token value of namely judging access node C is untrue, and/or resource occupation information, and/or request credit token allowance value is incorrect, then base station B can initiate an arbitration/voting process, so that its doubting of authenticity to access node C is offered broadcasting station A.Broadcasting station A can further take other measure, verifies authenticity or the correctness of the information of access node C, and non-honest resource requestor is punished that present embodiment is not done at this and given unnecessary details.
As seen, in the present embodiment, provide the authenticity of request credit token of the resource requestor of broadcasting station A of resource to verify; Coexistence corporations also adopt distributed means, to the authenticity of this coexistence other resource requestor in corporations to selected resource recipient's request credit token value, or the correctness of resource occupation information, or the correctness of request credit token allowance value is verified, carry out resource and distribute verifying correct resource requestor, increase the fairness of resource-sharing, improved the communication performance of coexistence corporations.
More than specific embodiments of the invention are described, it will be appreciated that the present invention is not limited to above-mentioned specific execution mode, those skilled in the art can make various variants and modifications within the scope of the appended claims.

Claims (13)

1. the resource at wireless symbiotic system provides and is used for the method for carrying out resource-sharing in the equipment, wherein, comprises the steps:
I. to each resource request device broadcasts resource information of lease;
Ii. receive from resource lease request at least one resource request equipment, that contain the lease bid, and determine the resource occupation information of at least one resource request equipment;
Iii. according to lease bid and the described resource occupation information of described at least one resource request equipment, therefrom select the resource accepting device, wherein, described step I ii comprises:
-based on the resource occupation information of described each resource request equipment, use default discounting function, determine the credit bid allowance value of each resource request equipment, this default discounting function makes the resource requestor of having occupied more frequency spectrum resource pay more lease and bids and other resource requestor competition frequency spectrum resources;
-select the resource request equipment of credit bid allowance value maximum as described resource accepting device.
2. method according to claim 1 is characterized in that, described lease bid comprises the request credit token value for request resource.
3. method according to claim 2 is characterized in that, described method also comprises the steps:
V. accept the credit bid allowance value that described resource accepting device provides, resource is distributed to described resource accepting device, and upgrade the resource occupation information of described resource accepting device;
Vi. will lease the resource request equipment that relevant information offers this wireless symbiotic system; When the credit of described resource accepting device bid allowance value during less than described request credit token value, the described relevant information of leasing also comprises credit compensation relevant information.
4. method according to claim 3 is characterized in that, described step I i comprises the steps:
Whether the request credit token value of ii1. verifying at least one resource request equipment is true;
Ii2. for real at least one the resource request equipment of request credit token value, determine its resource occupation information, and carry out described step I ii.
5. method according to claim 4 is characterized in that, described step I i2 also comprises:
-for the false resource request equipment of request credit token value, carry out corresponding credit punishment, and will punish that relevant information offers other each resource request equipment.
6. method according to claim 4 is characterized in that, described method also comprises the steps:
Iv. to the request credit token value of described resource accepting device, and/or resource occupation information, and/or credit bid allowance value, verify to described resource request equipment: if checking is passed through, then carry out described step v and vi.
7. the resource at wireless symbiotic system provides and is used for the device that carries out resource-sharing in the equipment, wherein, comprising:
-dispensing device is used for to each resource request device broadcasts resource information of lease;
-processing unit receives from resource lease request at least one resource request equipment, that contain the lease bid, and determines the resource occupation information of at least one resource request equipment;
-choice device is used for lease bid and described resource occupation information according to described at least one resource request equipment, therefrom selectes the resource accepting device, and wherein, described choice device comprises:
-determine device, be used for the resource occupation information based on described each resource request equipment, use default discounting function, determine the credit bid allowance value of each resource request equipment, wherein, this default discounting function makes the resource requestor of having occupied more frequency spectrum resource pay next and other resource requestor competition frequency spectrum resources of more lease bid;
Described choice device is used for, and according to the credit bid allowance value of described each resource request equipment, therefrom selects the resource request equipment of credit bid allowance value maximum as described resource accepting device.
8. device according to claim 7 is characterized in that, described lease bid comprises the request credit token value for request resource.
9. device according to claim 8 is characterized in that, this device also comprises:
-distributor is accepted the credit bid allowance value that described resource accepting device provides, and resource is distributed to described resource accepting device, and upgrade the resource occupation information of described resource accepting device;
-generator is used for leasing the resource request equipment that relevant information offers this wireless symbiotic system; When the credit of described resource accepting device bid allowance value during less than described request credit token value, the described relevant information of leasing also comprises credit compensation relevant information.
10. device according to claim 9 is characterized in that, this device also comprises:
-the first demo plant, whether the request credit token value that is used at least one resource request equipment of checking is true;
Described processing unit is determined its resource occupation information for real at least one the resource request equipment of request credit token value;
Described distributor also is used for:
The reference credit token value of the described resource accepting device of-renewal.
11. device according to claim 10 is characterized in that, described first demo plant also is used for:
-for the false resource request equipment of request credit token value, carry out corresponding credit punishment, and will punish that relevant information offers other each resource request equipment.
12. device according to claim 10 is characterized in that, this device also comprises:
-the second demo plant is used for the request credit token value to described resource accepting device, and/or resource occupation information, and/or credit bid allowance value, verifies to described resource request equipment.
13. the resource of a wireless symbiotic system provides equipment, it is characterized in that, comprises according to each is described be used to the device that carries out resource-sharing in the claim 7 to 12.
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