CN101448321A - Method for sharing frequency spectrum resource of isomerism wireless network and device thereof - Google Patents

Method for sharing frequency spectrum resource of isomerism wireless network and device thereof Download PDF

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CN101448321A
CN101448321A CN 200810225230 CN200810225230A CN101448321A CN 101448321 A CN101448321 A CN 101448321A CN 200810225230 CN200810225230 CN 200810225230 CN 200810225230 A CN200810225230 A CN 200810225230A CN 101448321 A CN101448321 A CN 101448321A
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bandwidth
network
current
resources
wireless network
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CN 200810225230
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CN101448321B (en
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亭 李
屹 李
曦 李
梅敬青
王仕果
红 纪
罗常青
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北京邮电大学
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Abstract

The embodiment of the invention provides a method for sharing frequency spectrum resource of an isomerism wireless network and a device thereof. The method comprises the following steps: a bandwidth requirement of a current network in designated time is predicted; if residual bandwidth resource of the current can not meet the predicted bandwidth requirement, then other wireless network bandwidth resource in the same overlay area is searched, then bandwidth resource dispatch is carried out on the searched wireless network which has useable and unoccupied bandwidth resource so as to meet the predicted bandwidth requirement of the current network. Therefore, the method effectively improves the utilization rate of wireless resource of the isomerism wireless network, the access rate of customer service and the throughput of the system, thus improving the performance of the system.

Description

异构无线网络频谱资源共享的方法及装置 Method and apparatus for heterogeneous wireless network resource sharing spectrum

技术领域 FIELD

本发明涉及网络通信领域,尤其涉及一种异构无线网络频谱资源共享的方法及装置。 The present invention relates to network communication field, and more particularly to methods and apparatus for resource sharing, to a heterogeneous wireless network spectrum.

背景技术 Background technique

随着通信技术的快速发展,出现了多种无线网络,并构成了异构无线网络, 但由于可用频镨资源的有限性,仍然无法满足无线业务急剧增长所产生的需求。 With the rapid development of communication technology, a variety of wireless networks, and constitute a heterogeneous wireless network, but because of the limited available frequency resources, praseodymium, still unable to meet the needs of the rapid growth of the wireless business generated. 同时,很多研究表明已分配的频谱资源存在十分严重的闲置和浪费现象, Meanwhile, many studies have shown that there is a very serious phenomenon of idle and waste of resources allocated spectrum,

当前已分配的大多数频段中,利用率都在15%~85%之间。 Most of the currently allocated band, utilization is between 15% to 85%. 因此,研究合理的频谱资源共享方案,在异构无线网络中有效利用其频镨资源为用户提供更好的服务,成为亟待解决的问题。 Therefore, a reasonable research spectrum resource sharing scheme in heterogeneous wireless networks in the effective use of frequency praseodymium its resources to provide users with better service, a problem to be solved.

目前,国内外已经广泛展开了对合理使用非本网络的空闲资源,提高频语资源利用率的研究,其中多数研究都是在采用独立资源管理机制的异构无线网络中,基于感知无线技术进行分布式的频谱空洞检测和占用等。 At present, at home and abroad has launched a wide range of non-rational use of idle resources of this network, study the language resource utilization frequency increase, most of these studies were heterogeneous wireless network in using independent resource management mechanism, based on cognitive radio technology distributed spectrum occupancy hole detection and so on. 但由于其设计方案要求及时回避主用户,且这些方法的流程往往都很复杂,使得系统的额外开销较大;同时现有技术中也缺4L^f具有联合资源管理机制异构无线网络中的频谱共享调度的技术方案,使得无线资源利用率一直得不到有效的提高,影响 But because of its design requirements in a timely manner to avoid the primary user, and the flow of these processes are often very complex, so that a large system overhead; while the prior art also lack 4L ^ f having a joint resource management mechanisms in heterogeneous wireless network spectrum sharing scheduling of technical solutions, enables wireless resource utilization has not effectively improve the impact

了系统的性能。 The performance of the system. 发明内容 SUMMARY

本发明实施方式所要解决的技术问题在于提供一种异构无线网络频谱资源共享的方法及装置。 Embodiments of the invention The technical problem to be solved is to provide a method and apparatus for wireless spectrum resource sharing heterogeneous network. 能够有效的提高异构无线网络中的无线资源利用率,以及用户业务接入率和系统的吞吐量,进而提升系统的性能。 Can effectively improve the radio resource utilization of the heterogeneous wireless networks, and the throughput rate of the user and service access the system, thereby improving system performance. 本发明实施方式是通过以下技术方案实现的: 一种异构无线网络频语资源共享的方法,包括: 预测当前网络在指定时间内的带宽需求; Embodiments of the invention are achieved by the following technical solution: a method of sharing resources in a heterogeneous wireless network frequency language, comprising: a prediction of the current network bandwidth requirements within a specified time;

若所述当前网络的剩余带宽资源不能满足所预测的带宽需求,则对同一覆盖区域的其他无线网络的带宽资源信息进行;险索; If the current residual bandwidth resources of the network can not meet the predicted demand for bandwidth, the bandwidth for the same coverage area information of the other wireless network is performed; risk index;

对所检索出的具有可用空闲带宽资源的无线网络进行带宽资源调度,使得满足所述当前网络的预测带宽需求。 Of the retrieved wireless network having a bandwidth resource available free bandwidth resource scheduling, so as to satisfy the current prediction network bandwidth requirements.

所述预测当前网络在指定时间内的带宽需求,具体包括: The prediction of the current network bandwidth requirements within a specified time, comprises:

预测当前网络在指定时间内发起新业务的数量; Predict the current number initiate new business network within a specified time;

统计每个业务所需要的带宽资源的平均值; The average bandwidth statistics every business needs;

才艮据所预测的新业务的数量和所述平均值,获得所述当前网络在指定时间内的带宽需求值。 It was predicted Gen new services and the number average value, obtaining the current value of the network bandwidth requirements within a specified time.

所述若所述当前网络的剩余带宽资源不能满足所预测的带宽需求,进一步包括: The current residual bandwidth if the resources of the network can not meet the predicted bandwidth requirements, further comprising:

当所述当前网络的剩余带宽资源小于所预测的带宽需求,且两者的差值大于预设的緩沖值时,判断所述当前网络的剩余带宽资源不能满足所预测的带宽需求。 When the current residual bandwidth resources of the network less than the predicted bandwidth requirements, and the difference between the two is greater than a predetermined buffer value, determining the current residual bandwidth resources of the network can not meet the predicted demand for bandwidth.

所述预设的緩冲值根据当前网络的资源使用情况来设定;所述的指定时间根据当前网络的业务量来设定。 The predetermined buffer value is set according to the current network resource usage; said designated time is set according to the current network traffic.

所述对所检索出的具有可用空闲带宽资源的无线网络进行带宽资源调度, 具体包括: The pair of the retrieved wireless network having a bandwidth resource available free bandwidth resource scheduling, comprises:

若只有一个无线网络的可用空闲带宽资源满足要求,则选择从该无线网络进行调度,并通知所述当前网络和该进行调度的无线网络进行带宽资源的调整及记录; If the available free bandwidth resource only to meet the requirements of a wireless network, the schedule selection from the wireless network, and notifying the wireless network and the current network is adjusted scheduling and recording bandwidth resources;

若有多个无线网络的可用空闲带宽资源均满足要求,则从所述多个无线网络中选择一个进行调度,并通知所述当前网络和该进行调度的无线网络进行带 If a plurality of available free bandwidth resource to meet the requirements of wireless networks, wireless networks from a plurality of a selected scheduling, and notifying the wireless network and the current network performs scheduling with

宽资源的调整及记录; And width adjusting the recording resources;

若单个无线网络的可用空闲带宽资源无法满足要求,但多个无线网络可用空闲带宽资源之和能够满足要求,则选择从所述多个无线网络中依次进行调度,直到满足所述当前网络的预测带宽需求,并通知所述当前网络和各进行调度的无线网络进行带宽资源的调整及记录。 When a single wireless network available free bandwidth resource can not meet the requirements, but a plurality of wireless networks and the available free bandwidth resource to meet the requirements, scheduling is selected sequentially from the plurality of wireless networks, the current network until meeting prediction Bandwidth requirements and notifies the respective wireless network and the current network performs scheduling to adjust the recording and bandwidth resources.

所述方法还包括: The method further comprising:

若所述当前网络的剩余带宽资源能够满足所预测的带宽需求,则对所述当 If the current residual bandwidth resources of the network to meet the predicted demand for bandwidth, then when the

前网络从其他无线网络借入带宽资源的记录进行;险查; Before network bandwidth resources borrowed records from other wireless networks; insurance check;

如果存在借入记录,则对存在借入记录的无线网络进行带宽资源的清偿。 If borrowing record exists, the record of the existence of borrowing repayment wireless network bandwidth resources.

所述对存在借入记录的无线网络进行带宽资源的清偿,具体包括: The presence of the recording borrowed wireless network bandwidth resources liquidation comprises:

若只向一个无线网络借入了带宽资源,则对该无线网络进行带宽资源的清 If only borrow bandwidth resources to a wireless network, the wireless network bandwidth resources of Qing

偿,偿还量为:所述当前网络的剩余带宽资源减去所预测的带宽需求之后的差 Compensation, repayment amount: the network bandwidth resources currently remaining after subtracting the difference between the predicted bandwidth requirements

值,与所借入的带宽资源量两者之间的最小值; Median, minimum bandwidth between the two and the amount borrowed;

若向多个无线网络借入了带宽资源,则对该多个无线网络依次按照上述的 When the borrowed bandwidth resources to a plurality of wireless networks, the sequence of the plurality of wireless networks according to the above

偿还方式进行带宽资源的清偿。 Repayment settlement way bandwidth resources.

本发明实施例还提供了一种异构无线网络频谱资源共享的装置,包括: Embodiments of the invention also provides an apparatus for resource sharing spectrum heterogeneous wireless network, comprising:

带宽需求预测单元,用于预测当前网络在指定时间内的带宽需求; Bandwidth demand prediction unit for predicting a current network bandwidth requirements within a specified time;

带宽资源检索单元,用于在所述当前网络的剩余带宽资源不能满足所预测 Bandwidth resources retrieval unit, for the current residual bandwidth resources of the network can not meet the predicted

的带宽需求时,对同一覆盖区域的其他无线网络的带宽资源信息进行;险索; 带宽资源调度单元,用于根据所述带宽资源检索单元的检索结果,对所检 When the bandwidth requirements, the bandwidth for the same resource information to other wireless coverage areas is performed; risk index; bandwidth scheduling unit according to the bandwidth resources search result retrieval units of the subject

索出的具有可用空闲带宽资源的无线网络进行带宽资源调度,使得满足所述当 A cable network having a radio bandwidth resource available free bandwidth resource scheduling, so as to meet the

前网络的预测带宽需求。 Forecast before network bandwidth requirements. 所述装置还包括: Said apparatus further comprising:

带宽资源判断单元,用于判断所述当前网络的剩余带宽资源是否能够满足所预测的带宽需求;当所述当前网络的剩余带宽资源小于所预测的带宽需求, Bandwidth determination means for determining a current residual bandwidth resources of the network is able to meet the predicted demand for bandwidth; when the current residual bandwidth resources of the network less than the predicted bandwidth requirements,

且两者的差值大于预设的緩冲值时,判断所述当前网络的剩余带宽资源不能满 And when the difference between the two is greater than a predetermined buffer value, determining the current residual bandwidth resources of the network can not be filled

足所预测的带宽需求,并将判断结果传送给所述带宽资源;险索单元。 Foot predicted bandwidth requirements, and the determination result to the bandwidth resources; insurance cable elements. 所述装置还包括: Said apparatus further comprising:

带宽资源清偿单元,用于在所述当前网络的剩余带宽资源能够满足所预测的带宽需求时,对所述当前网络从其他无线网络借入带宽资源的记录进行检查,并在存在借入记录时,对存在借入记录的无线网络进行带宽资源的清偿。 Bandwidth settlement means, for when the current residual bandwidth resources of the network to meet the predicted demand for bandwidth, a check of the current network bandwidth resources recording borrow from other wireless networks, and in the presence of borrowing records, there is borrowing record settlement wireless network bandwidth resources.

由上述所提供的技术方案可以看出,首先预测当前网络在指定时间内的带宽需求;若所述当前网络的剩余带宽资源不能满足所预测的带宽需求,则对同一覆盖区域的其他无线网络的带宽资源信息进行检索;然后再对所检索出的具有可用空闲带宽资源的无线网络进行带宽资源调度,4吏得满足所述当前网络的预测带宽需求。 As it can be seen from the above technical solutions provided by the first prediction of the current network bandwidth requirements within a specified time; if the current residual bandwidth resources of the network can not meet the predicted demand for bandwidth for the same coverage areas of other wireless networks bandwidth information retrieval; then to the retrieved wireless network having a bandwidth resource available free bandwidth resource scheduling, 4 officials to satisfy bandwidth requirements of the current prediction network. 这样就可以有效提高异构无线网络中的无线资源利用率,以及用户业务接入率和系统的吞吐量,从而提升了系统的性能。 This can improve the radio resource utilization of the heterogeneous wireless networks, users and service access rate and throughput of the system, thereby improving the system performance.

附图说明 BRIEF DESCRIPTION

图1为本发明实施例1所提供方法的流程示意图; Figure 1 provides a schematic flow chart of the method according to one embodiment of the present invention;

图2为本发明实施例2所提供装置的结构示意图; Figure 2 provides a schematic structural diagram of the apparatus according to the second embodiment of the present invention;

图3为本发明实施方式所述具体网络架构的组网结构示意图; FIG 3 is a schematic network architecture specific network structure of the embodiment of the invention embodiment;

图4为本发明实施方式所述网络覆盖关系及初始用户数的示意图; FIG 4 is a schematic view in covering relation to the initial number of users and the network embodiment of the invention;

图5为本发明实施方式所述系统的用户业务接入率的仿真计算结果示意 The simulation results of FIG user service access Embodiment 5 of the embodiment of the present invention, a schematic system

图; Figure;

图6为本发明实施方式所述系统的频谱资源利用率的仿真计算结果示意 Simulation spectrum resource utilization in the present embodiment of the invention in FIG. 6 the result is a schematic system

图; Figure;

图7为本发明实施方式所述系统的吞吐量的仿真计算结果示意图。 FIG 7 is a schematic manner throughput simulation results of the system of the present invention. 具体实施方式本发明实施方式提供了一种异构无线网络频谱资源共享的方法及装置。 DETAILED DESCRIPTION Embodiments of the invention provide a method and apparatus in a heterogeneous wireless network resource sharing spectrum. 通过分析网络在当前和过往的状态信息,建立带宽需求预测^^型,然后以此来预 By analyzing network status information about the current and past, the establishment of the bandwidth demand forecasting ^^ type, and then in order to advance

测当前网络在指定时间内的带宽需求,即频谱资源需求;然后在当前网络检查到剩余资源不能满足预期的带宽需求时,请求特定的处理单元(例如可以是联合资源管理单元JRRM unit)对同一覆盖区域的其他无线网络的资源使用信息进行检索,从具有较多空闲资源的网络中进行频谱资源调度,以实现空闲资源的有效利用。 Measuring current network bandwidth requirements within a specified time, i.e., spectral resource needs; Then the remaining resources in the current network checks can not meet the expected demand for bandwidth requests a particular processing unit (e.g., may be a joint resource management unit JRRM unit) of the same other resources coverage area of ​​a wireless network using information retrieval, the spectrum resource scheduling from a network with more free resources in order to achieve effective utilization of free resources. 这样就可以有效的提高异构无线网络中的无线资源利用率,以及用户业务接入率和系统的吞吐量,进而提升系统的性能。 This can effectively improve the utilization of radio resources in a heterogeneous wireless network, the user and service access rate and throughput of the system, thereby improving system performance.

如图1所示为本发明实施例1所提供方法的流程示意图,所述方法包括: As shown in Example 1 provides a schematic flow chart of a method embodiment of the present invention shown in FIG. 1, the method comprising:

步骤11:预测当前网络在指定时间内的带宽需求。 Step 11: predicting the current network bandwidth requirements within a specified time.

具体来说,是对当前网络在指定时间内的带宽需求量进行预测,这里预测的方式可以通过参考当前网络的状态和历史信息来进行手动配置,也可以建立相应的预测模型通过统计的方式来获得。 Specifically, the current bandwidth demand is a network within a specified time to predict where a predictable way can be manually configured by referring to the current network status and historical information, may also establish the appropriate statistical forecasting model by way of obtain.

举例来说,本实施例可以建立一种基于对网络状态和历史信息进行分析处理的带宽需求预测模型。 For example, the present embodiment can build a prediction model based on the bandwidth requirements for the network status and historical information analysis processing. 该预测模型通过计算指定预测周期内发起新业务的数量,并统计每个业务所需要的带宽资源平均值,来实现对预测时间内系统带宽需求的预估。 The number of predictive models by initiating a new service within the specified forecast period is calculated, and the statistical average for each business bandwidth resources needed to achieve the forecast bandwidth demand on the system within the predicted time.

假设业务的连接持续时间为N,满足平均值为1/(1屮)的几何分布: p(N:n)V1(1-//),itf1,2,3…(1) Suppose connection service duration is N, the average value satisfying 1 / (1 Che) geometric distribution: p (N: n) V1 (1 - //), itf1,2,3 ... (1)

在实际应用中,jii的取值通常大于0.98;而预测周期的取值不能太长也不能太短,这是因为如果预测时间过长,如数分钟,网络状态的动态变化可能会使预测值与实际情况存在较大偏差,带来无效的预测才乘作;而如果预测时间过短,如数周期,就会降低预测行为的有效性和实际意义。 In practice, the value JII typically greater than 0.98; and the value of the forecast period is not too long nor too short, since if the prediction time is too long, such as dynamic changes minutes, network status may cause the predicted value there is a large deviation of the actual situation, bring valid only multiply as predicted; and if the predicted time is too short, in full period, it will reduce the effectiveness and practical significance to predict behavior. 在实际操作过程中, 预测周期数的取值必须要适当,例如可以是数十周期或数秒;在这种情况下,已有的业务在此期间内结束或同一用户发起两次业务的概率均极小,这样对预测结果的影响就可以忽略不计。 In practice, the value of the number of forecast period must be appropriate, for example, may be a few seconds or tens period; in this case, the existing business in the end of this period initiated by the user or the same service twice all probability very small, so the impact on the predicted results will be negligible.

现假设在t个周期内,网络中所有无业务用户发起业务的次数,服从强度 Assume now that the number of periods in the t, the network initiates a service for all users without service, subject to strength

为入t泊+〉分布: T is the poise +> Distribution:

P(X=k) = (Ar)k " / W =(2) P (X = k) = (Ar) k "/ W = (2)

其中,k表示当前时刻起的t个周期以内所有用户发起的业务次数,而P(k, 入t )表示用户在t个周期内发起k个业务的概率。 Wherein, k represents the number of operations within the current time t of one cycle from all the user-initiated, and P (k, into t) represents a k th user initiates a service in a period of t probabilities.

参数a代表在单位周期内所有用户发起的业务次数,该参数可以依据系统的业务信息进行动态调整,假设网络在上一个周期的关键参数为Ao,在前t个周期内,共有m个无业务用户,发起了S项业务;若当前时刻系统有M个无业务用户,则可以得到: Parameter A represents a number of times within a unit period for all services initiated by users, the parameter may be dynamically adjusted based on traffic information system network is assumed that the key parameters for a period Ao of, the preceding cycle t, there are m serviceless user initiated a service item S; if the current system time has M users without service, can be obtained:

r=(^ + A。)/2 r = (^ + A.) / 2

wr (3) wr (3)

在上述公式(2)和(3)的^出上,预测T个周期之内,所有用户发起业务数为k的概率,满足泊松分布: In the above equation (2) and (3) a ^ out, the prediction of T cycles, all the user initiates a service number k of probability, Poisson distribution:

PT,k=PT(X=k)=^V' PT, k = PT (X = k) = ^ V '

k! (4) k! (4)

假设当前网络中有M个无业务用户,则在指定时间T内发起业务次数的期望值S为: Suppose there are M current network user without service, the number of operations is initiated a specified time T S is a desired value:

s 二r义(5) r s two sense (5)

同时,再以^表示当前周期内业务的平均带宽需求,其值也可以依据网络的历史服务信息进行动态的调整,假设网络在上一个周期预测时业务平均带 At the same time, then ^ represents the average bandwidth requirement in the current business cycle, its value can also be dynamically adjusted based on historical service information network, assuming a network when the business cycle forecasting average band

宽需求值为5。 5 is bandwidth requirements. ,且所有S项业务各自实际的带宽需求为Bi, K[1,S],则有-.S (6) , S and all business items to their actual demand bandwidth Bi, K [1, S], there -.S (6)

那么根据上述公式5和6,就可以得到在T周期以后当前网络带宽需求的预 Then the above equation 5 and 6, can be obtained after the pre-T cycle of the current network bandwidth requirements

测值Bp为: Bp measurement value is:

(7) (7)

通过上述的预测模型,就可以计算统计获得当前网络在指定时间内的带宽需求量,然后再进行下面的操作步骤。 By the above-described prediction model can calculate current bandwidth demand network statistics obtained within the specified time, and then performs the following steps.

另外,由于考虑到实际应用中网络通信的业务类型和^t量可能与时间具有一定的关联性,上述预测模型中的关键参数A和B可以利用网络服务的历史信息进行自适应的动态调整,这样就可以更准确地预测网络服务状态的变化。 Further, considering the practical application of the service type and network communication ^ t amount may have some relevance to time, the prediction model parameters A and B may be critical utilization history information network service dynamically adjusting adaptive, so that we can more accurately predict changes in network service status.

步骤12:若所述当前网络的剩余带宽资源不能满足所预测的带宽需求,则对同一覆盖区域的其他无线网络的带宽资源信息进行^r索。 Step 12: if the current residual bandwidth resources of the network can not meet the predicted demand for bandwidth, the bandwidth for the same coverage area information of the other wireless network is ^ r cable.

具体来说,在获得了当前网络在指定时间内的带宽需求量之后,就可以比较当前网络的剩余带宽资源量和所预测的带宽需求量,以判断资源是否充足。 Specifically, after obtaining the current bandwidth demand network within a specified time, you can compare the current residual bandwidth resources of the network and the predicted bandwidth demand, to determine whether sufficient resources.

举例来说,将当前网络的剩余带宽资源(记为crnt一radio)与预测带宽需求值Bp进行比较,若Bp〉crntj"adio,则可以判断当前网络的剩余带宽资源不能满足所预测的带宽需求,此时就可以向特定的管理单元发出频谱资源调度的请求,由该特定的管理单元对同一覆盖区域的其他无线网络的带宽资源信息进行检索。 For example, the current residual bandwidth resources of the network (referred to as a crnt radio) and the predicted value Bp comparing bandwidth requirements, if Bp> crntj "adio, it is possible to determine the remaining bandwidth of the current network bandwidth can not meet the predicted demand in this case it can send a request to a specific spectrum resource scheduling management unit retrieved by the management unit of the particular bandwidth resource information same coverage area of ​​other wireless networks.

另外,为了避免在crnt—radio与Bp相近时,出现频繁的请求行为,本实施例还可以在判决条件上引入緩冲值Bu,只有当crntjadio + Bu < Bp时,当前网 In order to avoid when crnt-radio similar to Bp, frequent request behavior, the present embodiment can also be incorporated in the buffer value Bu determining condition, only when crntjadio + Bu <Bp, the current network

络才向特定的管理单元发送频语资源调度请求,以说明当前网络状态以及所欠缺的带宽资源量。 Only specific network management unit sends a speech frequency resource scheduling request, to indicate the current status of the network resources and the amount of bandwidth is lacking.

其中,该所欠缺的带宽资源量可以用brjadio表示,该brjadio = Bp -cmt—radio;另外,所述的緩冲值可以根据当前网络的资源使用情况来进行设定,例如可以是当前网络初始带宽资源的5%;而以上所述特定的管理单元可以是联合资源管理单元JRRM unit,也可以是其他具有相同功能的网络实体。 Wherein the bandwidth of the resource may be lacking brjadio represent the brjadio = Bp -cmt-radio; Further, the buffer value may be set according to the current network resource usage, for example, may be the initial current network 5% bandwidth resources; and the above specific joint resource management unit may be snap JRRM unit, or may be other network entities having the same function.

步骤13:对所检索出的具有可用空闲带宽资源的无线网络进行带宽资源调度,使得满足当前网络的预测带宽需求。 Step 13: on the retrieved wireless network having a bandwidth resource available free bandwidth resource scheduling, so as to satisfy bandwidth requirements of the current prediction network.

具体来说,在经过上述步骤12的操作,对同一覆盖区域的其他无线网络的带宽资源信息进行检索之后,获得具有空闲带宽资源的无线网络,在对比该空闲带宽资源的频率,判断是否可以在发出调度请求的无线网络中使用,从而确定可用空闲带宽资源的无线网络,并根据检索结果进行相应的带宽资源调度操作,使其能够满足当前网络的预测带宽需求。 Specifically, after the operation of the above-described step 12, the same coverage areas of other wireless network bandwidth resources retrieval information, obtain wireless network has a free bandwidth resource, in contrast to the frequency of the free bandwidth resource can be judged whether issuing a scheduling request using a wireless network, the wireless network to determine the available free bandwidth resource, and the corresponding bandwidth resource scheduling operation based on the search result, it is possible to meet the bandwidth requirements of the current prediction network.

按照检索结果的不同,相应的处理方式也不同,具体来说:第一种情况, 若只有一个无线网络的可用空闲带宽资源满足要求,则选择从该无线网络进行调度,并通知所述当前网络和该进行调度的无线网络进行带宽资源的调整及记录。 According to the different search result, the corresponding processing in different ways, in particular: a first case, only when the available free bandwidth resource to meet the requirements of a wireless network, for scheduling is selected from the wireless network, the current network and notify and scheduling the wireless network and to adjust the recording bandwidth resources. 举例来说,如果只有一个网络的可用空闲带宽资源(记为spr一radio)满足调度需求,即spr—radio >= br_radio,则选择从该网络进行调度,并将结果通知相关的两个网络进行频谱资源的调整及记录。 For example, if only one network is available free bandwidth resource (spr referred to as a radio) to meet scheduling requirements, i.e. spr-radio> = br_radio, scheduling is selected from the network, and to inform the relevant two networks adjust and record the spectrum resources.

第二种情况,若有多个无线网络的可用空闲带宽资源均满足要求,则从所述多个无线网络中选择一个进行调度,并通知所述当前网络和该进行调度的无线网络进行带宽资源的调整及记录。 The second case, if a plurality of available free bandwidth resource meet the requirements of the wireless network, from the wireless network to select a plurality of scheduling, and informs the wireless network of the current network and bandwidth resources for scheduling adjustment and records. 举例来说,如果有多个网络的可用空闲带宽资源均满足br一radio的调度需求,则从所述多个无线网络中选择一个进行调度,这里可以选择/人空闲资源最多的网络进行调度,也可以选择从空闲资源最少的网络进行调度,具体可以根据其他网络的使用情况来决定;然后再将结果通知相关的两个网络进行频谱资源的调整并记录。 For example, if there are a plurality of networks available free bandwidth resource scheduling needs are met br of a radio, from said plurality of selecting a wireless network for scheduling, where you can select / person most idle network resource scheduling, may be selected from a minimum idle scheduling network resources, can be determined according specific usage of other network; then notify the result of two networks and to adjust the spectrum resource record.

第三种去情况,若单个无线网络的可用空闲带宽资源无法满足要求,但多个无线网络可用空闲带宽资源之和能够满足要求,则选择从所述多个无线网络中依次进行调度,直到满足所述当前网络的预测带宽需求,并通知所述当前网络和各进行调度的无线网络进行带宽资源的调整及记录。 To the third case, if a single wireless network available free bandwidth resource can not meet the requirements, but a plurality of wireless networks and the available free bandwidth resource to meet the requirements, scheduling is selected from the plurality of wireless network sequentially, until meeting the current prediction network bandwidth requirements, and notifying the wireless network and the current network for scheduling respective adjusting and recording bandwidth resources. 举例来说,如果没有 For example, if there is no

单个网络的可用空闲带宽资源可以满足br一radio的调度需求,但是多个网络可用空闲资源之和可以满足,则选择从所述多个无线网络中依次进行调度,这里可以选择/人可用空闲资源最多的网络开始依次调度,也可以选择/人可用空闲资源最少的网络开始依次调度,具体可以根据其他网络的使用情况来决定;上述依次进行调度,直到能够满足当前网络的预测带宽需求;然后再将结果通知各相关网络进行频语资源的调整并记录。 Available free bandwidth resource scheduling to meet the needs of a single network of a radio br, but a plurality of network resources available free and meet, scheduling is selected from the plurality of wireless network sequentially, where you can select / human resources available free most network sequentially scheduling can also select / person available minimum idle network resources sequentially scheduling, may be specifically determined according to the use of other networks; and the order scheduling, up to meet the current prediction bandwidth demand network; then the results inform the relevant language resource network frequency adjustment and recorded.

通过上述技术方案的实施,就可以有效提高异构无线网络中的无线资源利用率,以及用户业务接入率和系统的吞吐量,进而提升了系统的性能。 By implementing the above technical solution, it can improve the radio resource utilization of the heterogeneous wireless networks, and the throughput rate of the user and service access systems, thereby improving the system performance.

另外,在上述步骤12中,若所述当前网络的剩余带宽资源能够满足所预测的带宽需求,则可以对所述当前网络从其他无线网络借入带宽资源的记录进行检查;当检查出存在借入记录时,就可以对存在借入记录的无线网络进行带宽资源的清偿。 Further, in step 12, if the current residual bandwidth resources of the network to meet the predicted demand for bandwidth, the bandwidth resources can borrow the recording of the current wireless network from another network check; check out when recording the presence borrow when it can pay off to the presence of borrowed bandwidth recording wireless network.

具体来说,若检查出只向一个无线网络借入了带宽资源,则只需要对该无线网络进行带宽资源的清偿,偿还量为:所述当前网络的剩余带宽资源减去所预测的带宽需求之后的差值,与所借入的带宽资源量两者之间的最小值。 After the current remaining network bandwidth resources minus the predicted bandwidth requirements: In particular, if only to borrow to check out a wireless network bandwidth resources, we only need to pay off the wireless network bandwidth resources to repay the amount of minimum difference between the two, with the borrowed bandwidth resources. 举例来说,如果只向一个网络借入了频语资源(记为br—radio),则只对该网络的资源进行清偿,偿还量为min(br一radio, temp),其中的temp- crnt一radio - Bp, 表示当前网络的剩余带宽资源减去所预测的带宽需求之后的差值;另外,如果br—radio < temp,则可以进一步记录temp = temp — br—radio;否则,进一步记录temp = 0。 For example, if only the frequency words borrowed resources to a network (referred to as br-radio), only the resources of the network will be paid, the amount of the repayment min (br a radio, temp), wherein a temp- crnt radio - Bp, representing the current residual bandwidth minus the resources of the network after the predicted bandwidth requirements; further, if br-radio <temp, may be further recorded temp = temp - br-radio; otherwise, further recording temp = 0.

若向多个无线网络借入了带宽资源,则对该多个无线网络依次按照上述的偿还方式进行带宽资源的清偿。 When the borrowed bandwidth resources to a plurality of wireless networks, the bandwidth resources sequentially performed as described above settlement of reimbursement of the plurality of wireless networks. 举例来说,如果向多个网络借入了频谱资源, 则可以按照借入资源brj"adio由少到多或由多到少的顺序,依次按照上述的偿 For example, if the borrowed spectrum resources to the plurality of networks, it is possible according to borrow resources brj "adio from less to more or less by a descending order, sequentially compensated in accordance with the above

13还原则来进行清偿处理。 13 also principle to settle process.

另外,在进行上述的清偿处理之后,若temp〉0,则可以进一步记录当前网络的空闲带宽资源为spr一radio = temp,以便向其他无线网络借出相应的带宽资源。 Further, after performing the above-described settlement process, if temp> 0, the current may be further recorded as spare network bandwidth resources spr a radio = temp, so that the corresponding bandwidth resources loaned to other wireless networks.

本发明实施例2还提供了一种异构无线网络频谘资源共享的装置,如图2所示为所述装置的结构示意图,所述装置包括带宽需求预测单元、带宽资源;险索单元和带宽资源调度单元。 Example 2 The present invention further provides an apparatus for frequency consultation heterogeneous wireless network resource sharing, the structure shown in FIG. 2 is a schematic view of the apparatus, the apparatus comprising a prediction unit bandwidth requirements, bandwidth resources; insurance cable element and bandwidth scheduling unit.

其中,所述的带宽需求预测单元用于预测当前网络在指定时间内的带宽需求;具体进行预测的方式见以上方法实施例1中所述。 Wherein said prediction means for predicting bandwidth requirements of the current network bandwidth requirements within a specified time; specific manner, see the above prediction method described in Example 1.

所述的带宽资源检索单元用于在所述当前网络的剩余带宽资源不能满足所预测的带宽需求时,对同一覆盖区域的其他无线网络的带宽资源信息进行检索。 The bandwidth resources retrieval unit configured to, when the current residual bandwidth resources of the network can not meet the predicted demand for bandwidth for the same coverage area of ​​the other wireless network bandwidth resource information retrieval.

所述的带宽资源调度单元用于根据所述带宽资源检索单元的检索结果,对所检索出的具有可用空闲带宽资源的无线网络进行带宽资源调度,使得满足所述当前网络的预测带宽需求。 The scheduling unit for bandwidth resources based on the search result of the search unit of bandwidth resources of the retrieved wireless network having a bandwidth resource available free bandwidth resource scheduling, so as to satisfy the current prediction network bandwidth requirements. 具体进行调度的方式见以上方法实施例1中所述。 See Example 1 The above method for scheduling specific embodiment.

另外,以上所述装置中还可包括带宽资源判断单元,所述的带宽资源判断单元,用于判断所述当前网络的剩余带宽资源是否能够满足所预测的带宽需求;其中,若所述当前网络的剩余带宽资源小于所预测的带宽需求,且两者的差值大于预设的緩冲值时,判断所述当前网络的剩余带宽资源不能满足所预测的带宽需求,并将判断结果传送给所述带宽资源;险索单元。 Further, the above apparatus may further comprise a judgment unit bandwidth, the bandwidth resource determination means for determining a current residual bandwidth resources of the network is able to meet the predicted demand for bandwidth; wherein, if the current network when the residual bandwidth is less than the predicted bandwidth requirements, and the difference between the two is greater than a predetermined buffer value, determining the current residual bandwidth resources of the network can not meet the predicted demand for bandwidth, and transmits the determination result to the said bandwidth; insurance cable elements.

优选的,以上所述装置中还可包括带宽资源清偿单元,所述的带宽资源清偿单元用于在所述当前网络的剩余带宽资源能够满足所预测的带宽需求时,对所述当前网络从其他无线网络借入带宽资源的记录进行检查,并在存在借入记录时,对存在借入记录的无线网络进行带宽资源的清偿。 Preferably, the above apparatus may further comprise a settlement unit bandwidth, the bandwidth resources of the settlement unit is configured to, when a current residual bandwidth resources of the network to meet the predicted demand for bandwidth, the current from the other network recording borrow wireless network bandwidth resources are checked, and in the presence of borrowing records, records exist borrowed wireless network bandwidth resources settlement. 具体进行清偿的方式见以上方法实施例1中所述。 DETAILED for settlement of the above method, see Example 1. 以上所述的装置可以设置于无线网络的基站或接入点中;也可以设置成单独的功能实体,和无线网络的基站或接入点保持连接关系。 The above-described means may be provided to a base station or a wireless network access point; may also be provided as a separate functional entity, and a wireless network base station or access point connection relationship maintained.

上述装置实施例中,所包括的各个单元只是按照功能逻辑进行划分的,但并不局限于上述的划分,只要能够实现相应的功能即可;另外,各功能单元的具体名称也只是为了便于相互区分,并不用于限制本发明的保护范围。 Means the above-described embodiment, the respective units included in only divided according to functional logic, but are not limited to the division, as long as the corresponding functions can be achieved; Also, specific names of the functional units are only to facilitate the mutual distinction, are not intended to limit the scope of the present invention.

下面针对具体的网络架构,对本发明实施方式所述方法做进一步说明,此处的网纟备架构是由LTE國TDD ( Long Term Evolution - time division duplex,长期演进画时分双工)、WiMAX (Worldwide Interoperability for Microwave Access,全J求互动式《敖波"I妾入)和WLAN (Wireless Local Area Network,无线局域网)组成的,如图3所示为具体网络架构的组网结构示意图,图中:所有的接入点AP或者基站BS都具有感知无线模块及全球定位系统GPS功能,能够定期的扫描附近网络的相关频谱,测量干扰能量值,并将相关信息与GPS地址信息一起上报到特定的管理单元,即联合资源管理单元JRRM unit;然后JRRM unit再根据所收到的信息确定各网络之间的重叠覆盖关系;同时所有的终端设备UE均支持感知无线模块,能够在指定的频率上进行通信。此外,为了便于支持本发明实施方式所述的方法,所有的AP或BS都会按 The following specific network architecture, further described embodiment of the invention the method, Si network architecture here is prepared by the National LTE TDD (Long Term Evolution - time division duplex, Videos long term evolution time division duplex), WiMAX (Worldwide Interoperability for Microwave Access, J seeking full interactive "Ao wave" into the I concubine) and WLAN (wireless Local Area network, wireless local area network) composed of, as shown in FIG 3 is a schematic view of network specific network architecture shown in FIG: All access points AP or base station BS has an associated wireless spectrum sensing module and global positioning system (GPS) function, the network can be periodically scanning the vicinity, the interference power measurement value, and reports the information to a specific address management information with GPS unit, i.e. the joint resource management unit JRRM unit; JRRM unit and then determine the relationship between the overlapping coverage network in accordance with the information received; and all the support equipment UE-aware wireless module capable of communicating on a designated frequency Furthermore, for the method of the embodiment of the present invention facilitates the support of all the BS or AP will press 频率增序尽量集中的分配无线网络带宽资源。 Frequency increasing order try to focus on the wireless network bandwidth resource allocation.

上述网络架构和参数设置中:共包括三种无线网络的9个基站/接入点,其中5个WLAN的AP,编号为ID1〜ID5; 3个LTE-TDD的BS,编号为ID6〜ID8; 1 个WiMAX的BS,编号为ID9。 Said network architecture and parameter settings: 9 comprises a total of three wireless network base station / access point, wherein the AP of the WLAN 5, numbered ID1~ID5; 3 th LTE-TDD of the BS, numbered ID6~ID8; of a WiMAX BS, number ID9. 为了简化方案,对各网络的一些参数,如初始带宽资源量及业务类型进行了一定的简化,但并不影响结果的有效性,其网络覆盖关系及初始用户数如图4所示,且其初始频谱资源及业务设置如下表所示: To simplify the scheme, a number of parameters of the network, such as the initial amount of bandwidth resources and service types for a certain simplification, but does not affect the validity of the results, the initial number of network coverage and the user relationship shown in Figure 4, and which The initial spectrum resources and services provided in the following table:

<table>table see original document page 15</column></row> <table><table>table see original document page 16</column></row> <table> <Table> table see original document page 15 </ column> </ row> <table> <table> table see original document page 16 </ column> </ row> <table>

通过上述的设置之后,就可以按照本发明实施例1所述的方法进行异构无线网络频镨资源的共享调度,在实际应用中可以将该方法定义为频谱资源共享 After passing through the above arrangement, it is the method of Example 1 can be a heterogeneous wireless network according to the embodiment of the present invention, a shared frequency resource scheduling praseodymium, in practical applications the method can be defined as the spectrum resource sharing

调度算法(Spectrum Sharing Algorithm, SSA)。 Scheduling algorithm (Spectrum Sharing Algorithm, SSA).

如图5所示为系统在釆用了SSA和不采用SSA时,用户业务接入率的仿真计算结果,从图中可以看出:采用SSA之后,系统的用户业务接入率有了较大的提升;这是因为当不采用SSA时,如果一个网络的负载过重而缺乏频谱资源, 只能降低/中断对现有的低优先级业务的服务来接入新业务,又或者直接拒绝该新业务的接入请求,这样就会导致用户业务接入率较低;而在采用SSA的系统中,当前网络可以通过向同一覆盖区域内其他具有空闲资源的网络借用频语资源,从实现接入新的业务,这样也就有效的提高了用户业务的接入率。 5 preclude the use of the system in the SSA and the SSA is not employed, the simulation result of the user service access rate, can be seen from the figure: SSA after use, the user service access rate of the system has a large promotion; this is because when not using SSA, if a heavily loaded network and the lack of spectrum resources, can only reduce / interrupt existing lower priority traffic services to access new services, or directly deny the new service access request, this will result in a lower rate of user services; in the SSA system uses, the current network can borrow frequency language other network resources by covering with free resources in the same region, then the realized into the new business, which will effectively improve the access of user services.

另夕卜,在上述的图5中,当时间t《30时,接入率曲线存在较大的降低趋势, 这是因为刚开始时没有业务,系统资源较多,用户业务接入率较高;然后由于资源已经被大量占用,用户业务接入率开始降低,最后再趋于稳定;从图中也可以看出,采用SSA的系统始终可以保持更高的接入率。 Another Bu Xi, in the above-described FIG. 5, when the time t "30, the access rate trend curve there is a large decrease, because there is no traffic at the beginning, more system resources, higher user rate service access ; since then a large number of resources already occupied, the user service access rate began to decrease, and finally stabilized; can also be seen from the figure, the SSA system can always maintain higher access rates.

如图6所示为系统频语资源利用率的仿真结果。 The system shown in FIG. 6 is a simulation result of frequency language resource utilization. 从图中可以看出:当采用SSA时,由于系统的空闲资源得到了更充分的利用,系统的频谱资源利用率要明显优于不采用SSA算法时,其频语资源利用率的平均提升量约为20。 As can be seen from the figure: When using SSA, since the system has been idle resources more fully utilize spectrum resource utilization of the system is much better than without using SSA algorithm, the average frequency lift amount which language resource utilization about 20. /。 /. .

如图7所示为系统吞吐量的仿真结果。 FIG system throughput simulation results shown in FIG. 从图中也可以看出:在采用SSA算法之后,系统的吞吐量也获得了明显的提升,平均提升量也大约为20%,与系统的频谱资源利用率的提升程度相似。 It can also be seen from the figure: after using the SSA method, system throughput is also obtained a significant lift-an average amount of about 20%, the degree of similarity and improve system utilization of spectrum resources.

综上所述,本发明实施方式可以有效提高异构无线网络中的无线资源利用率,以及用户业务接入率和系统的吞吐量,从而提升了系统的性能。 In summary, embodiments of the present invention can effectively improve the radio resource utilization of the heterogeneous wireless networks, users and service access rate and throughput of the system, thereby improving the system performance.

以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明实施例揭露的技术范围内, 可轻易想到的变化或替换,都应涵盖在本发明的保护范围之内。 Above, the present invention is merely preferred specific embodiments, but the scope of the present invention is not limited thereto, within the technical scope of any skilled in the art in the art disclosed in the embodiment of the present invention can be easily thought of changes or replacements shall fall within the protection scope of the present invention. 因此,本发明的保护范围应该以权利要求的保护范围为准。 Accordingly, the scope of the present invention should be defined by the scope of the claims.

Claims (10)

1、一种异构无线网络频谱资源共享的方法,其特征在于,预测当前网络在指定时间内的带宽需求;若所述当前网络的剩余带宽资源不能满足所预测的带宽需求,则对同一覆盖区域的其他无线网络的带宽资源信息进行检索;对所检索出的具有可用空闲带宽资源的无线网络进行带宽资源调度,使得满足所述当前网络的预测带宽需求。 1. A method for wireless spectrum resource sharing heterogeneous network, wherein the prediction of the current network bandwidth requirements within a specified time; if the current residual bandwidth resources of the network can not meet the predicted demand for bandwidth for the same coverage other wireless network bandwidth resources information retrieval area; of the retrieved wireless network having a bandwidth resource available free bandwidth resource scheduling, so as to satisfy the current prediction network bandwidth requirements.
2、 如权利要求1所述的方法,其特征在于,所述预测当前网络在指定时间内的带宽需求,具体包括:预测当前网络在指定时间内发起新业务的数量; 统计每个业务所需要的带宽资源的平均值;根据所预测的新业务的数量和所述平均值,获得所述当前网络在指定时间内的带宽需求值。 2. The method as claimed in claim 1, wherein the prediction of the current network bandwidth requirements within a specified time, comprises: a prediction of the current number of network initiating a new service within a specified time; statistics for each required service average bandwidth resources; according to the predicted number of new services and the average value to obtain the current value of the network bandwidth requirements within a specified time.
3、 如权利要求1所述的方法,其特征在于,所述若所述当前网络的剩余带宽资源不能满足所预测的带宽需求,进一步包括:当所述当前网络的剩余带宽资源小于所预测的带宽需求,且两者的差值大于预设的緩沖值时,判断所述当前网络的剩余带宽资源不能满足所预测的带宽需求。 3. The method of claim 1, wherein said residual bandwidth if the current resources of the network can not meet the predicted bandwidth requirements, further comprising: when the current residual bandwidth resources of the network less than the predicted when the bandwidth requirements, and the difference between the two is greater than a predetermined buffer value, determining the current residual bandwidth resources of the network can not meet the predicted demand for bandwidth.
4、 如权利要求3所述的方法,其特征在于,所述预设的緩冲值根据当前网络的资源使用情况来设定;所述的指定时间根据当前网络的业务量来设定。 4. The method as claimed in claim 3, wherein the predetermined buffer value is set according to the current network resource usage; said designated time is set according to the current network traffic.
5、 如权利要求1所述的方法,其特征在于,所述对所检索出的具有可用空闲带宽资源的无线网络进行带宽资源调度,具体包括:若只有一个无线网络的可用空闲带宽资源满足要求,则选择从该无线网络进行调度,并通知所述当前网络和该进行调度的无线网络进行带宽资源的调整若有多个无线网络的可用空闲带宽资源均满足要求,则A^所述多个无线网络中选择一个进行调度,并通知所述当前网络和该进行调度的无线网络进行带宽资源的调整及记录;若单个无线网络的可用空闲带宽资源无法满足要求,但多个无线网络可用空闲带宽资源之和能够满足要求,则选择从所述多个无线网络中依次进行调度,直到满足所述当前网络的预测带宽需求,并通知所述当前网络和各进行调度的无线网络进行带宽资源的调整及记录。 5. The method of claim 1, wherein the bandwidth of the retrieved resource scheduling in a wireless network having available free bandwidth resource, comprises: If only one available free bandwidth resource to meet the requirements of the wireless network is selected from the wireless network performs scheduling and notifies the wireless network and the current network scheduling is adjusted if a plurality of wireless network bandwidth resources available free bandwidth resource requirements are met, then the plurality of a ^ selecting a wireless network for scheduling, and notifying the wireless network and the current network is adjusted scheduling and recording bandwidth resources; single wireless network if available free bandwidth resource can not meet the requirements, a plurality of wireless networks are available but idle bandwidth and to meet the requirements of the resources, scheduling is selected from the plurality of wireless network sequentially, until meeting the current prediction network bandwidth requirements, and notifying the current network and for scheduling each wireless network bandwidth resources to adjust and records.
6、 如权利要求1所述的方法,其特征在于,所述方法还包括: 若所述当前网络的剩余带宽资源能够满足所预测的带宽需求,则对所述当前网络从其他无线网络借入带宽资源的记录进行检查;如果存在借入记录,则对存在借入记录的无线网络进行带宽资源的清偿。 6. The method as claimed in claim 1, wherein said method further comprises: if the current residual bandwidth resources of the network to meet the predicted demand for bandwidth, then the current network bandwidth is borrowed from another wireless network resource record is checked; if the borrowing record exists, then the presence of the wireless network recording borrowing settlement bandwidth resources.
7、 如权利要求6所述的方法,其特征在于,所述对存在借入记录的无线网络进行带宽资源的清偿,具体包括:若只向一个无线网络借入了带宽资源,则对该无线网络进行带宽资源的清偿,偿还量为:所述当前网络的剩余带宽资源减去所预测的带宽需求之后的差值,与所借入的带宽资源量两者之间的最小值;若向多个无线网络借入了带宽资源,则对该多个无线网络依次按照上述的偿还方式进行带宽资源的清偿。 7. The method as claimed in claim 6, wherein said bandwidth resources for settlement to the presence of the recording borrowed wireless network, comprises: If only borrow bandwidth resources to a wireless network, the wireless network is performed settlement of bandwidth resources, repayment amount: the network bandwidth resources currently remaining after subtracting the difference between the predicted bandwidth requirements, the bandwidth between the minimum amount of resources and borrowed; if a plurality of wireless networks to borrowed bandwidth resources, bandwidth resources are sequentially performed as described above settlement of reimbursement of the plurality of wireless networks.
8、 一种异构无线网络频谱资源共享的装置,其特征在于,包括: 带宽需求预测单元,用于预测当前网络在指定时间内的带宽需求; 带宽资源检索单元,用于在所述当前网络的剩余带宽资源不能满足所预测的带宽需求时,对同一覆盖区域的其他无线网络的带宽资源信息进行检索;带宽资源调度单元,用于根据所述带宽资源检索单元的检索结果,对所检索出的具有可用空闲带宽资源的无线网络进行带宽资源调度,使得满足所述当前网络的预测带宽需求。 8. An apparatus for wireless spectrum resource sharing heterogeneous network, characterized by comprising: a bandwidth demand prediction unit for predicting a current network bandwidth requirements within a specified time; bandwidth resources retrieval unit for the current network when the remaining bandwidth resources can not meet the predicted demand for bandwidth, bandwidth for the same coverage area of ​​another wireless network information retrieval; bandwidth scheduling unit according to the bandwidth resources search result retrieval unit, of the retrieved bandwidth resource scheduling of available free bandwidth resource with the wireless network, so as to satisfy the current prediction network bandwidth requirements.
9、 如权利要求1所述的装置,其特征在于,所述装置还包括: 带宽资源判断单元,用于判断所述当前网络的剩余带宽资源是否能够满足所预测的带宽需求;当所述当前网络的剩余带宽资源小于所预测的带宽需求, 且两者的差值大于预设的緩沖值时,判断所述当前网络的剩余带宽资源不能满足所预测的带宽需求,并将判断结果传送给所述带宽资源;险索单元。 9. The apparatus as claimed in claim 1, characterized in that said apparatus further comprising: bandwidth determining means for determining the current residual bandwidth resources of the network is able to meet the predicted demand for bandwidth; when the current when less than the remaining bandwidth resources of the network the predicted bandwidth requirements, and the difference between the two is greater than a predetermined buffer value, determining the current residual bandwidth resources of the network can not meet the predicted demand for bandwidth, and transmits the determination result to the said bandwidth; insurance cable elements.
10、 如权利要求1所述的装置,其特征在于,所述装置还包括:带宽资源清偿单元,用于在所述当前网络的剩余带宽资源能够满足所预测的带宽需求时,对所述当前网络从其他无线网络借入带宽资源的记录进行检查,并在存在借入记录时,对存在借入记录的无线网络进行带宽资源的清偿。 10. The apparatus as claimed in claim 1, characterized in that said apparatus further comprises: settlement means bandwidth, for when the current residual bandwidth resources of the network bandwidth to meet the predicted demand, the current network bandwidth resources borrowed from another recording wireless network checks, and when borrowing record, recording the existence of borrowing the wireless network bandwidth resource in the presence of settlement.
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