CN101322346A - 借助于无线基站虚拟化的按需服务 - Google Patents
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Abstract
提供了响应于来自无线接入设备的对服务的请求在物理接入点处启动虚拟存在。可以根据所请求的服务的位置和/或类型以按需的方式向用户提供特定的无线服务。在对服务的需求结束时可终止该服务,由此在服务提供商之间可以共享共同的无线服务基础设施,从而不再需要无线电信道协调且提高了这些服务提供商的服务质量。
Description
相关申请的交叉引用
本申请要求申请日为2005年12月1日、发明名称为“Methods andApparatus to Offer On-Demand Services and On-Demand AccessMethods over Wireless Networks by Wireless Base Station Virtualization”的美国临时专利申请第60/741,184号的优先权,该临时专利申请披露的内容通过引用结合于此。
技术领域
本发明涉及无线通信,具体而言涉及无线基站虚拟化。
背景技术
接入点是通过无线链路与一个或者多个远程接收节点进行数据通信的发送器/接收器设备。接入点可包括无线基站(WBS),所述WBS提供系列无线接入设备(WAD)-如IEEE 802.11或者IEEE 802.16e网络接口卡(NIC)或者IEEE 802.16客户端设备(CPE)-到无线网络的接入。在本公开中通篇可以互换使用术语“WBS”和“接入点”。无线网络可以例如是IEEE 802.11或者IEEE 802.16网络。现有技术的接入点广播由WAD接收的信标帧,以指示无线服务可用。另外,配置为接入无线网络的WAD可以广播服务请求帧以请求来自该区域中无线网络的服务。服务请求帧的例子包括如在IEEE 802.11无线标准中描述的探测请求帧,所述IEEE802.11无线标准公开的内容通过引用结合于此。
现有技术的接入点通常限于提供少量的服务。提供的服务数量部分地受限于由接入点产生的信标帧的总长度。通过服务群标识符(SSID)在信标帧内标识所提供的每个服务。随着接入点提供更多的服务,包括信标帧的信号变长。部分地由于在接入点和WAD双方的时间限制和资源约束,典型的WBS只能通告以及因此提供达八至十六个服务。时间限制是由于在每个服务的信标帧之间所需的间隙。资源约束可以包括在接入点处对可用带宽的消耗和对可用处理能力的使用。此外,现有技术的接入点不管在无线网络内的地理位置或者服务使用如何,都限于提供固定和静态的服务群。
图1描绘了如可在现有技术中看到的无线网络100中的控制器和接入点,并且例示了静态服务提供所具有的问题。网络100包括控制器105和一系列接入点110A-110N。控制器105定义与各接入点110A-110N相关联的固定的SSID集。
接入点110A-110C可以(经由控制器105)与同一SSID集(例如airespider、aspd、ruckus、v54、linksys、tsunami、2wire、xlan、wireless、compaq)相关联。接入点110D可以(也经由控制器105)与SSID的子集相关联,所述SSID与接入点110A-110C相关联。例如,图1中的接入点110A-110C与针对ruckus、v54、linksys、tsunami、2wire、xlan、wireless、compaq的SSID相关联,而接入点110D可以仅与针对ruckus(鲁库斯)和v54的SSID相关联。接入点110D不能进一步与在控制器105限定的SSID之外的其他SSID相关联。结果,接入点110D可能不与针对linksys、tsunami、2wire、xlan、wireless和compaq的SSID相关联,即使该接入点可能没有以完全容量进行工作,因此这浪费了可用资源,尤其是在接入点100A-110C由于来自WAD的服务器请求而超负荷时。
对提供静态和有限服务所存在的问题的一种解决方案是使用非许可频带射频(RF)。然而,这一解决方案受到来自于在部署环境下的其它设备的RF干扰的风险。在多个服务提供商在其中部署他们的无线服务网络的场所,RF干扰问题可能会严重影响服务质量。
另一解决方案可以提供经协商的提供商到提供商的信道分配。所述协商可以允许各种服务但是可能实际造成增加的RF干扰。该协商也可以证明在提供商之间既麻烦又耗时。
使用非许可频带RF和协商信道分配的一种替代方式是部署如在例如机场和咖啡屋的‘热点’中常见的单个服务提供商。在这样的场所下的单个提供商(例如T-Mobile)一般会具有对场地的独占性部署权,由此迫使WAD的用户订购该提供商的服务。这样的热闹地区可以通过基于在后端的服务提供商托管(mandate)无线网络基础设施、回传(backhaul)无线业务和对服务进行区分来提供附加的服务。然而,许多位置可能由于成本或者其它限制而不想建立或者维护无线基础设施。
需要一种按需的无线服务解决方案。这样的解决方案将允许根据所请求的服务的位置和/或类型以按需的方式向用户提供特定的无线服务。然后可在对特定服务的需求结束时终止这样的服务。这样的解决方案将允许在服务提供商之间共享共同的无线服务基础设施,由此不再需要无线电信道协调且减少了RF干扰和对带宽资源的消耗。还可以在公共无线场所和地点进一步提高所有服务提供商的服务质量。
发明内容
本发明的实施方式允许服务提供商通过部署的无线网络向用户提供不同类型的服务。服务提供商可以在不改变WAD或者违反各种无线标准的情况下,通过基于指定的服务或者接入方法对用户分组来进行这些提供。这里描述的实施方式可以实施于例如基于IEEE 802.11的网络(例如Wi-Fi/无线局域网(WLAN)),以及包括但不限于IEEE 802.16(WiMAX)和IEEE 802.16e-2005(移动WiMAX)的其它网络部署中。
在本发明的一个示例性实施方式中,公开了用于提供按需无线服务的方法。通过这一示例方法,在WBS处接收来自WAD的服务请求。响应于该服务请求,如果WBS被配置为或者以别的方式能够提供所请求的服务,则在WBS处启动虚拟存在(virtual presence)。由WBS广播多个信标帧,指示所请求的服务通过在WBS处的虚拟存在的可用性。与该服务请求相应的无线服务使用所述WBS的虚拟存在被提供给WAD。
在本发明的另一实施方式中,公开了一种用于提供按需无线服务的系统。WBS从WAD接收服务请求且广播多个信标帧。所述多个信标帧指示所请求的服务通过在WBS处的虚拟存在的可用性。响应于该服务请求在WBS启动虚拟存在,且该服务存在使用该存在向WAD提供所请求的服务。
在本发明的又一实施方式中,公开了可以提供接需无线服务的装置。该装置可以实施为WBS,从WAD接收服务请求。如果该装置被配置为或者以别的方式能够提供所请求的服务,则该装置响应于该服务请求启动虚拟存在。该装置广播多个信标帧,这些信标帧指示所请求的服务在该装置处经由该虚拟存在的可用性。该装置然后利用在装置处启动的前述虚拟存在向WAD提供与所述服务请求对应的无线服务。
本发明的又一实施方式提供一种计算机可读介质。该介质中包括一个或者多个程序。该一个或者多个程序可以由计算设备(例如在WBS处的处理器)执行以实现用于提供按需无线服务的方法。对程序的执行可以允许在执行该一个或者多个程序的计算设备处接收WAD启动的服务请求。响应于该服务请求,该一个或者多个程序可以规定在计算设备处启动虚拟存在以及广播多个信标帧,这些信标帧指示所请求的服务通过所述虚拟存在的可用性。该一个或者多个程序然后可以允许利用前述的虚拟存在向该请求WAD提供与服务请求对应的无线服务。
附图说明
图1描绘了可以在现有技术中找到的无线网络中的控制器和接入点;
图2描绘了根据本发明实施方式的通过接入点虚拟化来提供按需服务的示例性无线通信网络;
图3描绘了根据本发明实施方式的通过接入点虚拟化来提供按需服务的示例方法;
图4描绘了在本发明的实施方式中在无线基站之间漫游的示例方法;以及
图5描绘了根据本发明实施方式的通过接入点虚拟化来提供按需无线接入方法的示例方法。
具体实施方式
提供用于响应于来自WAD的对服务的请求在物理接入点处启动虚拟存在的系统、方法、装置和计算机可读介质。结果,尽管有现有技术的前述限制,仍然可以根据所请求的服务的位置和/或类型以按需的方式向用户提供特定的无线服务。然后可以在对服务的需求结束时终止该服务。结果,可以在服务提供商之间共享共同的无线服务基础设施,由此不再需要无线电信道协调且在公共无线驻地场所(premises site)进一步提高了所有服务提供商的服务质量。
为克服由于例如信标帧的长度而造成的对物理接入点可提供的服务数量的限制,物理接入点以按需方式启动虚拟存在。可以根据接收的来自WAD的服务请求来动态地映射附加的虚拟接入点存在。由于仅提供已请求的服务,所以接入点能够提供对服务更大的选择。另外,接入点存在只需广播与启动的虚拟接入点相应的信标帧,由此减少了服务之间的干扰并保存了网络带宽。该方法还可以针对无线接入方法如安全策略或者认证方案来实施。
通过基于要求服务的用户的请求动态地绑定服务和WBS中的虚拟存在,WBS可以提供M个服务中的N个服务。在这一方程式中,N是在任何给定时刻在WBS中的最多的活动实例(active instance)而M是提供商所提供的服务的总数目(M≥N≥1)。因此,在任何给定时刻,可具有由不同WBS向用户提供的M个服务的不同的N子集。
图2描绘了根据本发明实施方式通过接入点虚拟化来提供按需服务的示例无线通信网络200。网络200包括接入点(WBS)205和一个或者多个WAD,如无线客户机210、215和220。无线客户机210-220可以经由任何不同的无线网络(如IEEE 802.11网络和/或IEEE 802.16网络)与接入点205通信。
接入点205能够通告服务以及根据服务策略允许用户接入无线网络。根据本发明的实施方式,接入点205可以启动一个或者多个虚拟存在,如在图3和图5的情形中描述的方法。图2中的接入点205被配置为访问指示了多个服务的服务列表,这些服务可以称为有效服务,因为接入点250可以向请求的用户提供这些服务。有效服务可包括服务提供商提供的各种无线服务,比如T-Mobile、Verizon Wireless、Sprint、AT&T等。接入点205的功能可以分布于如接入点205a的一个或者多个其它物理设备上。
示例接入点205可以包括硬件,如调制器/解调器(调制解调器)、天线、处理器和存储器。调制解调器可以被配置为从连接到因特网的路由器接收数据以及将数据转换成调制RF信号,包括符合802.11的调制RF信号。天线可以将该调制RF信号无线地传送到在与接入点205相关联的范围内的一个或者多个WAD。天线还可以被配置为接收来自WAD的RF调制数据。天线可以分别负责发送和接收信标帧和服务请求。处理器可以被配置为访问和处理存储在存储器中的指令和/或数据,比如上文描述的有效服务列表。存储器中的指令可以被配置为在WBS处启动虚拟存在和采取认证操作。服务质量(QoS)、安全和漫游指令集也可以存储在存储器中并且可由处理器访问和执行。
客户机210、215和220(如前文所述)是任何种类的WAD(如IEEE802.11,或者IEEE 802.16e NIC和IEEE 802.16CPE)的举例。客户机WAD 210-220可以实现在其它设备,如膝上型计算机、智能电话等中。无论是否本地WBS(如接入点20)实际地通告所需服务的可用性,图2的客户机WAD 210-220都广播具有所需SSID或者其它标识符的服务请求。所述服务请求可以根据相关无线网络标准来广播,使得本发明的实施方式无需改变用户行为。
如将在图3中具体描述的,在从例如WAD客户机210接收到服务请求时,接入点205将确定所请求的服务是否为有效服务(例如为接入点205所提供的请求服务)。如果是,则接入点205将开始广播指示该服务的可用性的多个信标帧以处理该请求。WAD客户机210然后可以与接入点205协商(例如认证),使得WAD可以如这里讨论的那样经由虚拟存在在接入点205处接入所需服务。
图3描绘了根据本发明实施方式的用于通过接入点虚拟化来提供按需服务的示例方法300。方法300可以由接入点205和/或接入点205a执行。在其它实施方式中,可以执行方法300以在例如企业环境中提供按需无线接入方法。所述无线接入方法可以包括用户认证、授权、数据保密和QoS处理。方法300还提供在当前没有用户在WBS的范围内并请求与虚拟存在相关联的特定服务的情况下终止在WBS处的虚拟存在。
在步骤305中,初始化WBS(比如接入点205)。初始化可以包括进入运行(RUN)状态,这进一步可包括WBS广播指示网络标识符的信标帧。网络标识符可包括与物理接入网络提供商相关的ID,所述物理接入网络提供商可以是操作WBS设备的实体。在一些实施方式中,WBS可以出于网络安全的目的而不广播指示网络标识符的信标帧。网络提供商可以与特定服务提供商相关联。如在图2的情形中所述,WBS功能可以分布于接入点组(例如接入点205和205a)之间以允许例如冗余性和可扩缩性。
在步骤310中,WBS可以可选地广播与一个或者多个服务相关联的一个或者多个信标帧。例如,WBS可以基于默认设置、经由WBS频繁接入的服务或者与WBS(接入点205)上启动的虚拟WBS存在相关联的服务来广播信标帧。
在步骤315中,在WBS处从WAD接收服务请求。无论WBS是否事先通告特定服务的可用性,WAD都将广播WBS可以接收的服务请求。该服务请求指示所需服务的标识符,所述标识符又可指示特定的服务提供商。参照图2,WAD客户机210可以例如广播针对T-Mobile无线服务的服务标识符而WAD客户机215可以指示表明对来自Verizon Wireless的无线服务的需求的独特的服务标识符。WBS(接入点205)可以接收WAD客户机210和WAD客户机215的广播服务请求。
在步骤320中,WBS确定该服务请求是否有效。WBS可以访问在存储器中或者在本地或者远程可访问数据库中存储的服务列表,所述服务列表显示了与有效服务相关的一个或者多个服务标识符。如果该服务请求不是有效的,则方法300结束,不在WBS处建立虚拟存在。
然而,如果该服务请求有效,则在步骤325,WBS确定是否有与该服务标识符对应的现存的虚拟WBS存在。再次参照图2,如果例如VerizonWireless服务请求是从WAD客户机210接收到的,而WAD客户机220已经经由Verizon Wireless连接到虚拟WBS存在,则可对现存的虚拟WBS存在进行识别。然而,如果该服务请求是从请求T-Mobile服务的WAD客户机215接收的,则可能没有现存的虚拟WBS存在,因为没有其它客户机已通过在WBS处的虚拟存在启动该T-Mobile服务。
如果没有现存的WBS虚拟存在,则可以在步骤330中由物理WBS启动虚拟存在。WBS可以能够同时提供达八至十六个虚拟的WBS存在,当然,在一些实施方式中,WBS实际提供的有效服务可超过该数目。如果WBS当前正在提供所述最大数目的虚拟存在,则WBS可能不能启动另外的虚拟WBS存在。然而,另一附近的WBS可以承担启动并主动提供另外的虚拟存在的任务。
当单个WBS就提供针对特定服务的虚拟存在而言已达到物理极限时,WBS可以不对与已经活动的虚拟存在不相应的服务请求做出响应。可以由产生或取回与服务提供商相关联的SSID的WBS启动该虚拟WBS存在。该WBS然后可以广播与该SSID相关联的信标帧,所述信标帧指示该服务通过虚拟WBS存在的可用性。后续WAD可以经由受例如认证或者其它服务策略控制的虚拟存在来接入该服务。
如果有现存的虚拟WBS存在或者已经启动虚拟WBS存在,则在步骤335中,WAD根据服务提供商的认证策略来参与认证处理。认证策略可以包括与虚拟WBS存在相关联的证书和特权。
在步骤340中,确定WAD是否被认证。在一些实例中,WAD可能由于例如缺乏证书的原因而无法通过与服务提供商进行的认证处理。在一些实施方式中,为了避免拒绝服务(DoS)攻击,如果在启动虚拟WBS存在之后的设定的时段内没有获得认证的WAD,则可终止该虚拟WBS存在。该时段可以是默认时段或者可由网络或者服务管理员配置。如果WAD未被认证或者该设定的时段已消逝,则方法300结束。如果WAD获得认证,则虚拟WBS提供到该WAD的无线连接且在步骤345中开始服务于该WAD。
在步骤350中,在存在虚拟WBS时,确定在WBS的范围内是否还有订购WAD。如果仍有用户,则保留该虚拟WBS存在和服务。如果不再有用户,则可以在步骤355中终止该虚拟WBS存在。在一些实施方式中,如果最后的订购WAD离开该WBS的范围,则在经过某一时段之后,终止该虚拟WBS存在。
在终止该虚拟WBS存在之后,WBS可启动新的虚拟WBS存在。通过动态地向WBS分配SSID,该WBS可以按需向WAD提供服务。此外,通过仅提供所请求的服务,方法300减少了无线网络中的设备与WBS之间的RF干扰的影响。也保存了否则可能会消耗在不必要地广播的信标帧上的带宽和处理能力。
图4描绘了在本发明实施方式中在WBS之间漫游的示例方法400。本发明可以允许WAD在服务会话期间从一个WBS服务区漫游到另一个WBS服务区。漫游包括使用在可与特定WBS相关联的预定‘归属’区之外的特定WAD,以及WAD在由多重WBS提供的服务区之间的一般移动。
在步骤410中,确定在WAD准备漫游到的服务区中是否有现存的虚拟WBS存在。可以通过由WBS广播识别无线网络提供商的信标帧来识别现存的虚拟WBS存在。该广播标识可以是物理网络提供商或者单独的服务提供商。也可以通过漫游WAD广播对特定服务的服务请求以及特定WBS响应该请求且广播信标帧来识别现存的虚拟WBS存在。
可以通过在WAD与WBS虚拟存在之间信号质量的降低来指示对WAD预备从当前WBS虚拟存在进行漫游的判断(由此需要在步骤410的判断)。在可以配置的某一阈值,WAD或者WBS可尝试识别与WAD相关联的更好的WBS虚拟存在。指示漫游的阈值也可与可能是由信号质量降低造成的重传尝试失败的次数相关联。在一些实施方式中,对新的WBS虚拟存在的识别可包括对‘最佳可用’WBS而不是‘可用’WBS的确定,以帮助确保最高质量的无线服务会话。WAD和WBS可以指出对漫游的需要。
如果在步骤410中没有识别到先前存在的虚拟WBS存在,则可以例如在图3的情形中所述的步骤420启动新的虚拟WBS存在。与在图3的情形中描述的方法类似,如果不能启动新的虚拟存在(例如服务请求不是有效的),则方法400结束,且可以使无线服务临时中断或者全然终止。在一些实施方式中,WAD可以开始搜寻新的WBS以提供之前接入的服务(例如WAD可以继续或者尝试漫游)。
已经漫游到新的WBS的服务区中并且启动新的虚拟存在(步骤420)的WAD在步骤430中可能需要被认证。可要求在该新的WBS处的认证(如在图3的情形中所述)以保持网络安全。在漫游对且在WBS处首次启动虚拟存在的情况下,可降低认证级别(例如相对于无线切换/控制器机制)。可以通过由先前WBS向新的WBS提供的某些认证信息来简化认证。也可以通过例如在用第一WBS进行的授权之后由WAD拥有的认证令牌来提供某些认证信息。
继认证之后,先前WBS将该WAD‘移交’给新的WBS。然后在步骤440中,以与图3的方式类似的方式由新的WBS的虚拟存在来服务于该WAD。在WBS之间的WAD交接过程可符合例如在IEEE 802.11r和IEEE802.16e-2005标准中定义的交接过程,其公开内容通过引用结合于此。
在步骤450中,即在已经向一个或者多个WAD用户提供服务之后,对在该虚拟存在处是否留有WAD用户进行判断。这一判断可以是例如相对于对特定服务的最后服务请求或者启动特定虚拟存在的可配置的时段。如果在到期之时或者之后(例如从对特定服务的服务请求起10分钟或者在启动存在之后20分钟)没有WAD用户(初始和/或后续用户),则可以释放专用于维持关联虚拟存在的WBS资源并且在步骤460终止该特定存在。如果留有WAD用户(如可根据前述时段确定的那样),则在步骤470维持该虚拟存在,且以后在步骤450重复该确定。
回到本方法的开始(400),在某些情况下,特定的虚拟存在可能已经存在于WBS处,如在步骤410中确定的。在这样的情况下,可以在步骤480针对提供虚拟存在的WBS可选地进行对可用资源的判断。例如,特定服务可以由该WBS提供,但是该WBS也可能正在托管(host)数个其它WAD。尽管该服务可能是可用的,但是该WBS可能在接收新的漫游用户WAD和/或对用于该特定服务或者可通过在WBS处的虚拟存在提供的任何其它服务的现存WAD维持某一服务水平方面存在困难。
如果所述资源可用,且WBS可以接纳和管理该新的WAD,则可以分别在步骤430和440中进行认证和服务。如果WBS不能接纳和/或管理如可由特定QoS或者准入控制策略所控制的WAD,则可以拒绝新用户并且可使无线服务临时中断或者全然终止。在一些实施方式中,WAD可以开始搜寻新的WBS以提供先前接入的服务(例如WAD可以继续或者尝试漫游)。
图5示出了根据本发明示例实施方式的用于基于用户证书来提供按需无线服务的示例方法500。如上所述,在本发明的一些实施方式中,WBS可以通告无线接入方法而不是无线服务。由WBS广播的无线接入方法可以指示通过空中接口的用户认证、授权、数据保密和QoS处理的机制。在这样的实施方式中,可以基于用户证书而不是与WAD用户相关联的WBS处的用户虚拟存在来提供服务。该WBS虚拟存在的动态特征用来指定WAD用户的准入策略,由此一旦用户连接到无线网络基础设施,则用户可用的服务类型是基于前述的用户证书的。
在步骤510中,接入点(如WBS)被初始化,然后开始广播默认的无线链路接入方法。在步骤520中,用户WAD可以广播关于优选的无线接入方法的请求。WBS在接收WAD请求时在步骤530中确定WAD所标识的方法是否为有效方法。这一确定可类似于如在例如图3的情形中描述的确定方法。在步骤540中,假设所请求的接入方法有效,则WBS可以开始广播指示所请求的接入方法的可用性的信标帧。该WBS也可在步骤550在WBS处启动与前述接入方法相应的虚拟存在。
在步骤560中,可以用与在例如图3和图4的情形中描述的方式类似的方式进行针对该请求WAD的认证过程。在步骤570中,一旦已经认证WAD用户并许可其进入网络,就基于它的证书对WAD进行分组。无论WAD用来进入网络的接入方法如何,这一证书分组将在步骤580中确定WAD可以接入和利用什么无线服务。
如在例如图3和图4的情形中讨论过的,后续的WAD可基于在图5的情形中的特定接入方法被准入特定WBS处的已有虚拟存在,而不是基于如在图3和图4中的情况下的所请求的服务。也可以针对在最后用户结束他们与WBS的连接之后特定接入方法的终止来进行各种判断。如在图3和图4的情形中的情况那样,在发生终止之前必须经过的时段是可以调节的且基于多种触发点。本方法还支持如在图4的情形下讨论过的WAD漫游以及不可用的方法处理和DoS攻击预防。
以上描述是说明性而不是限制性的。通过查阅该公开,本发明的许多变化对于本领域技术人员而言将变得明显。因此,这里公开的具体细节不应解释为限制性的而应当解释为权利要求的示例基础以及解释为教导本领域技术人员以实质上任何适当的具体系统、结构、方法、处理或者方式来利用本发明的代表性的基础。
就此而言,在图2中描述的系统是示例性的并且可包括其各种替换、等效或者衍生内容。类似地,在图3、图4和图5中描述的步骤(及其顺序)是示例性的并且可以包括其(包括但不限于其执行顺序)各种替换、等效或者衍生内容。前述方法的步骤(及其各种替换)可以用硬件或者软件来实施,该硬件或者软件包括计算机可读介质(例如计算机存储器、光盘、存储器卡、载波等),该计算机可读介质包括可由例如计算设备的处理器执行的程序和/或指令。
Claims (33)
1.提供按需无线服务的方法,包括:
接收来自无线接入设备的服务请求;
响应所述服务请求启动虚拟无线基站存在,所述虚拟无线基站存在是在被配置为提供所请求的服务的无线基站处启动的;
广播由所述无线基站产生的多个信标帧,所述多个信标帧指示所请求的服务经由所述虚拟无线基站存在的可用性;以及
经由所述虚拟无线基站存在向所述无线接入设备提供所请求的服务。
2.根据权利要求1所述的方法,还包括认证与所述无线接入设备相关联的服务用户证书。
3.根据权利要求2所述的方法,还包括如果在设定的时段内所述服务用户证书没有获得认证,则终止所述虚拟无线基站存在。
4.根据权利要求1所述的方法,还包括:
接收来自第二无线接入设备的服务请求;以及
使用所述虚拟无线基站存在向所述第二无线接入设备提供所请求的服务。
5.根据权利要求1所述的方法,还包括如果所述无线接入设备不再订购所请求的服务,则终止所述虚拟无线基站存在。
6.根据权利要求1所述的方法,还包括在第二无线基站处启动第二虚拟无线基站存在,以允许所述无线接入设备在与各所述无线基站相关联的服务区之间漫游。
7.根据权利要求1所述的方法,还包括基于在所述无线基站处是否启动其它虚拟无线基站存在确定是否启动所述虚拟无线基站存在,以及提供所请求的服务。
8.根据权利要求1所述的方法,还包括确定所请求的服务是否与在可用服务列表上指示的无线服务相关联。
9.提供按需无线服务的系统,包括:
802.11无线网络;
至少一个无线接入设备,配置为广播服务请求;以及
无线基站,配置为:
接收所述服务请求;
响应于所述服务请求启动虚拟无线基站存在;
广播多个信标帧,所述多个信标帧指示所请求的服务经由虚拟无线基站存在的可用性;以及
经由所述虚拟无线基站存在向所述无线接入设备提供所请求的服务。
10.根据权利要求9所述的系统,其中所述无线基站还被配置为认证与所述无线接入设备相关联的服务用户证书。
11.根据权利要求10所述的系统,其中所述无线基站还被配置为在所述服务用户证书在设定的时段内没有获得认证的情况下,终止所述虚拟无线基站存在。
12.根据权利要求9所述的系统,其中所述无线基站还被配置为接收来自其它无线接入设备的服务请求以及经由所述虚拟无线基站存在向所述其它无线接入设备提供所请求的服务。
13.根据权利要求9所述的系统,其中所述无线基站还被配置为在所述无线接入设备不再订购所请求的服务的情况下,终止所述虚拟无线基站存在。
14.根据权利要求9所述的系统,其中所述无线基站还被配置为在第二无线基站处启动第二虚拟无线基站存在,以允许所述无线接入设备在与各所述无线基站相关联的服务区之间漫游。
15.根据权利要求9所述的系统,其中所述无线基站还被配置为基于在所述无线基站处是否启动其它虚拟无线基站存在确定是否启动所述虚拟无线基站存在,以及提供所请求的服务。
16.根据权利要求9所述的系统,其中所述无线基站还被配置为确定在服务列表上是否指示了所请求的服务。
17.无线基站,包括:
存储器,包括可由处理器执行的第一指令集,其中所述处理器对所述第一指令集的执行响应于服务请求启动虚拟无线基站存在;
天线,配置为接收来自无线接入设备的所述服务请求,所述天线还配置为广播多个信标帧,所述多个信标帧指示所请求的服务经由所述虚拟无线基站存在的可用性;以及
耦合到所述天线的调制解调器,所述调制解调器被配置为经由所述虚拟无线基站存在提供所请求的服务。
18.根据权利要求17所述的无线基站,其中所述处理器还被配置为认证与所述无线接入设备相关联的服务用户证书。
19.根据权利要求18所述的无线基站,其中所述存储器还包括可由所述处理器执行的第二指令集,其中如果所述服务用户证书在设定的时段内没有获得认证,则对所述第二指令集的执行使所述虚拟无线基站存在终止。
20.根据权利要求17所述的无线基站,其中所述天线还被配置为接收来自其它无线接入设备的服务请求,且所述调制解调器还被配置为经由所述虚拟无线基站存在向所述其它无线接入设备提供所请求的服务。
21.根据权利要求17所述的无线基站,其中所述存储器还包括可由所述处理器执行的第二指令集,如果所述无线接入设备不再订购所请求的服务,则对所述第二指令集的执行使所述虚拟无线基站存在终止。
22.根据权利要求17所述的无线基站,其中所述存储器还包括可由所述处理器执行的第二指令集,其中对所述第二指令集的执行在第二无线基站处启动第二虚拟无线基站存在,以允许所述无线接入设备在与各所述无线基站相关联的服务区之间漫游。
23.根据权利要求17所述的无线基站,其中所述存储器还包括可由所述处理器执行的第二指令集,对所述第二指令集的执行基于在所述无线基站处是否启动其它虚拟无线基站存在来确定是否启动所述虚拟无线基站存在,以及提供所请求的服务。
24.根据权利要求17所述的无线基站,其中所述存储器还包括可由所述处理器执行的第二指令集,对所述第二指令集的执行确定在服务列表上是否指示了所请求的服务。
25.计算机可读存储介质,其上包含指令,所述指令用于在由处理器执行时提供按需无线服务,所述指令包括以下步骤:
接收来自无线接入设备的服务请求;
响应于所述服务请求启动虚拟无线基站存在,所述虚拟无线基站存在是在被配置为提供所请求的服务的无线基站处启动的;
广播由所述无线基站产生的多个信标帧,所述多个信标帧指示所请求的服务经由所述虚拟无线基站存在的可用性;以及
经由所述虚拟无线基站存在向所述无线接入设备提供所请求的服务。
26.根据权利要求25所述的计算机可读存储介质,其中所述指令还包括以下步骤:认证与所述无线接入设备相关联的服务用户证书。
27.根据权利要求26所述的计算机可读存储介质,其中所述指令还包括以下步骤:如果所述服务用户证书在设定的时段内没有获得认证,则终止所述虚拟无线基站存在。
28.根据权利要求25所述的计算机可读存储介质,其中所述指令还包括以下步骤:
接收来自其它无线接入设备的服务请求;以及
经由所述虚拟无线基站存在向所述其它无线接入设备提供所请求的服务。
29.根据权利要求25所述的计算机可读存储介质,其中所述指令还包括以下步骤:如果所述无线接入设备不再订购所请求的服务,则终止所述虚拟无线基站存在。
30.根据权利要求25所述的计算机可读存储介质,其中所述指令还包括以下步骤:在第二无线基站处启动第二虚拟无线基站存在,以允许所述无线接入设备在与各所述无线基站相关联的服务区之间漫游。
31.根据权利要求25所述的计算机可读存储介质,其中所述指令还包括以下步骤:基于在所述无线基站处是否启动其它虚拟无线基站存在来确定是否启动所述虚拟无线基站存在,以及提供所请求的服务。
32.根据权利要求25所述的计算机可读存储介质,其中所述指令还包括以下步骤:确定在服务列表上是否指示了所请求的服务。
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CN106101978A (zh) * | 2015-04-30 | 2016-11-09 | Sk普兰尼特有限公司 | 用于使用一个信标提供多个服务的方法、设备和系统 |
CN106101978B (zh) * | 2015-04-30 | 2019-12-03 | Sk 普兰尼特有限公司 | 用于使用一个信标提供多个服务的方法、设备和系统 |
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US20070130456A1 (en) | 2007-06-07 |
US8009644B2 (en) | 2011-08-30 |
WO2007064822A2 (en) | 2007-06-07 |
EP1958369B1 (en) | 2015-04-08 |
US20140066112A1 (en) | 2014-03-06 |
WO2007064822A3 (en) | 2007-11-22 |
US20150133089A1 (en) | 2015-05-14 |
US8605697B2 (en) | 2013-12-10 |
US8923265B2 (en) | 2014-12-30 |
US9313798B2 (en) | 2016-04-12 |
EP1958369A4 (en) | 2011-08-10 |
EP2763443B1 (en) | 2019-05-22 |
US20110281609A1 (en) | 2011-11-17 |
EP1958369A2 (en) | 2008-08-20 |
EP2763443A1 (en) | 2014-08-06 |
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