CN105340332B - 选择用于数据流量卸载的无线节点 - Google Patents

选择用于数据流量卸载的无线节点 Download PDF

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CN105340332B
CN105340332B CN201480035513.4A CN201480035513A CN105340332B CN 105340332 B CN105340332 B CN 105340332B CN 201480035513 A CN201480035513 A CN 201480035513A CN 105340332 B CN105340332 B CN 105340332B
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CN105340332A (zh
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乔伊·周
萨莎·希洛金
穆泰俄赫·温卡塔查拉姆
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Apple Inc
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Abstract

公开了可操作来在通信网络上选择无线节点的技术。在一个实施例中,用户设备(UE)被配置有:被配置为基于经由操作、管理和维护(OAM)系统传输的无线接入网络(RAN)辅助信息确定何时将UE的数据流量卸载至多无线电接入技术(RAT)通信网络中的无线局域网(WLAN)接入点(AP)的电路。利用RAN辅助信息标识multi‑RAT通信网络中的一个或多个WLAN AP的状态。基于选择标准在multi‑RAT通信网络的小区中选择用于通信的无线节点。

Description

选择用于数据流量卸载的无线节点
相关申请
本申请要求于2013年6月26日递交的、序列号为61/859,121并且代理案卷编号为P59845Z的美国临时专利申请的权益,并且该申请通过引用被结合于此。本申请还要求于2014年6月23日递交的、序列号为14/338,638并且代理案卷编号为P64980的美国非临时专利申请的权益,并且该申请通过引用被结合于此。
背景技术
数据使用量和对通信网络的数据传输容量的需求随着移动设备(比如,移动电话、平板设备、笔记本电脑等)日渐普及而持续增加。随着数据使用量和数据传输容量需求的增加,通信网络运营商和供应商正在经受蜂窝网络拥塞。为满足通信网络中逐渐增加的带宽需求,通信网络运营商和供应商可以利用多无线接入技术(multi-RAT)(例如,蜂窝网络和无线网络)来在通信网络中递送数据。
无线网络使用通信频谱的未经许可的部分,并且无线网络节点可以以相对较低的成本被广泛部署。随着可用的无线网络技术(例如,Wi-Fi网络)的广泛和具成本效益地部署,通信网络运营商和供应商可以将数据流量卸载至无线网络以减少蜂窝网络拥塞。例如,如果智能手机装备有蜂窝网络连接功能和无线网络连接功能两者,那么通信网络运营商和供应商可以将蜂窝网络数据卸载至无线网络。因此,存在对能够有效使用蜂窝网络和无线网络的通信网络的通信方案的需求。
附图说明
本公开的特征和优势将从下文的具体实施方式中变得清楚,具体实施方式结合附图一起通过举例的方式示出了本公开的特征,其中:
图1根据示例描绘了用于无线节点选择的通信网络;
图2根据示例描绘了具有演进型节点B(eNode B)和在eNode B的小区中的无线局域网络(WLAN)接入点(AP)的通信网络;
图3根据示例描绘了示出从WLAN域管理器(DM)接收用于流量卸载的WLAN AP信息的无线广域网络(WWAN)节点的图示;
图4根据示例描绘了将下层(underlaid)WLAN AP信息传输至选定eNode B的流程图;
图5根据示例示出针对在eNode B的覆盖范围内的多个WLAN AP的下层WLAN AP信息的表格;
图6根据示例描绘了eNode B将已经切换至离线状态的WLAN AP从可用WLAN AP的列表中移除的流程图;
图7根据示例描绘了eNode B将已经切换至在线状态的WLAN AP加入可用WLAN AP的列表的流程图;
图8根据示例描绘了eNode B将已经切换至拥塞状态的WLAN AP从可用WLAN AP的列表中移除的流程图;
图9根据示例描绘了eNode B将已经切换至非拥塞状态的WLAN AP加入可用WLANAP的列表的流程图;
图10根据示例描绘了用于数据流量卸载的以网络为中心的WLAN选择的流程图;以及
图11根据示例描绘了可操作来在多无线接入技术(multi-RAT)通信网络的小区中选择无线节点的用户设备(UE)的电路的功能;
图12根据示例描绘了可操作来确定用户设备(UE)何时将数据流量卸载到通信网络的小区中的WLAN节点的eNode B的电路的功能;
图13根据示例描绘了包括其上存储有指令的非暂态存储介质的产品,这些指令被适配为被执行来实现选择通信网络中的WLAN AP以卸载UE的数据流量的方法;并且
图14根据示例示出UE的图示。
现在将参考示出的示例性实施例,并且本文将使用特定语言来描述相同组分。然而,应该理解的是不打算由此限制本发明的范围。
具体实施方式
在公开和描述本发明之前,应该理解本发明不限于本文公开的特定结构、处理步骤或材料,而是扩展至包括相关领域技术人员认可的它们的等同物。还应该理解的是本文采用的术语只被用于描述特定的示例的目的,而不打算进行限制。在不同附图中的相同参考编号表示相同的元件。在流程图和过程中提供的编号被提供来清楚地说明步骤和操作,并且不一定指示特定的顺序或序列。
由于对移动设备使用的增加和对移动设备的应用的数据消耗的扩大,对通信网络的带宽需求在不断增大,通信网络运营商和供应商可以在通信网络中使用具有多无线接入技术(multi-RAT)的通信方案(例如,蜂窝网络技术和无线网络技术)来传输数据。
在一个示例中,蜂窝网络可以被配置为基于以下蜂窝标准进行操作:例如,第三代合作伙伴计划(3GPP)长期演进(LTE)Rel.8、9、10、11或12标准、或电气与电子工程师协会(IEEE)802.16p、802.16n、802.16m-2011、802.16h-2010、802.16j-2009、或802.16-2009标准。无线网络(例如,无线保真网络(Wi-Fi))可以被配置为利用诸如IEEE 802.11-2012、IEEE 802.11ac或802.11ad标准之类的标准进行操作,或者利用使用通信频谱的未经许可的带宽的另一类无线标准进行操作。
在一个通信方案中,multi-RAT可以被用于从蜂窝网络向无线网络卸载数据流量,例如,无线局域网(WLAN)卸载。WLAN卸载可以被用于减小或者缓解通信网络的数据和带宽拥塞问题。在一个WLAN卸载方案中,WLAN可以与无线广域网(WWAN)(例如,第三代合作伙伴计划(3GPP)蜂窝网络)在核心网络(CN)层和演进分组核心(ECP)层相互作用。在另一WLAN卸载方案中,WLAN可以与WWAN在无线接入网络(RAN)层(例如,RAN2层)相互作用。
在一个WLAN卸载的配置中,可以使用以UE为中心的WLAN卸载方案。在以UE为中心的WLAN卸载的一个实施例中,UE可以选择无线节点(比如WLAN节点或WWAN节点)来引导通信网络中的UE的数据流量。在以UE为中心的WLAN卸载的另一实施例中,接入网发现和选择功能(ANDSF)可以选择无线节点来引导通信网络中的UE的数据流量。
图1示出可操作来选择用来与UE传输数据的无线节点的通信网络。在一个实施例中,通信网络可以包括具有至因特网连接130的通信链接和至演进型节点B(eNode B)140和/或WLAN AP 150的通信链接的演进分组核心(EPC)110。在另一实施例中,EPC可以经由eNode B和/或WLAN AP将数据传输至UE 160。在一个配置中,EPC可以包括服务网络(SGW)112、分组数据网络(PDN)网关(PGW)114、移动管理实体(MME)116、归属用户服务器(HSS)118、和/或接入网发现和选择功能(ANDSF)模块120。
在以UE为中心的WLAN卸载的一个配置中,RAN可以通过广播信令和/或专用信令向UE提供RAN辅助信息。在一个示例中,UE可以使用RAN辅助信息、由WLAN提供的WLAN测量值和WLAN信息、和/或卸载策略来选择把数据流量导向的WLAN AP。在一个实施例中,WLAN测量值可以包括由UE接收到的参考信号接收功率(RSRP)信息和参考信号接收质量(RSRQ)信息。在另一实施例中,WLAN信息可以包括由WLAN AP广播的诸如基本服务集(BSS)负载信息之类的信息。在一个示例中,BSS负载信息可以指示WLAN AP的负载。在一个实施例中,卸载策略可以经由以下各项获得:经由ANDSF;经由开放移动联盟设备管理(OMA-DM)程序;和/或经由在UE处预配置的卸载策略。
在一个示例中,当在通信网络的小区中没有可用的WLAN AP或者小区中的所有WLAN AP拥塞时,那么eNode B可以不广播RAN辅助信息。在该示例中,当UE没有接收到RAN辅助信息时,UE可以决定不将数据流量卸载至WLAN AP。在一个实施例中,只有当WLAN AP可用并且不拥塞时UE才可以将数据流量卸载至WLAN AP。
在WLAN卸载的一个配置中,可以使用以网络为中心的WLAN卸载。在一个实施例中,以网络为中心的WLAN卸载可以是通信网络中的网络元件可以选择使UE将数据流量导向的通信网络中的无线节点。在以网络为中心的WLAN卸载的一个实施例中,eNode B可以使用选定WLAN AP信息(例如,一个或多个WLAN接入点(AP)的可用性状态)来确定何时将UE的数据流量卸载至WLAN。在另一实施例中,WLAN AP信息可以包括针对一个或多个WLAN AP的信息。在另一配置中,操作、管理和维护(OAM)接口或系统可以将一个或多个WLAN AP的选定WLANAP信息传输至eNode B。在一个示例中,只有当WLAN AP的可用性状态是在线并且不拥塞(例如,不超负荷)时,eNode B才可以将数据流量从UE指导或引导至WLAN AP(例如,WLAN卸载)。
在一个实施例中,处于无线资源控制(RRC)连接状态或小区专用信道(DCH)状态的UE可以由使用专用流量指导命令的通信网络中的网络元件控制。在一个配置中,网络元件可以是开放移动联盟设备管理器(OMA DM)、OAM网络管理器(NM)、eNode B、或无线网络控制器(RNC)。在另一实施例中,专用流量指导命令可以基于由UE报告的WLAN测量值。在一个示例中,eNode B或RNC能够在UE测量报告中配置UE测量过程,例如,要被测量的目标WLAN的身份。在另一实施例中,当eNode B或RNC和WLAN AP之间没有网络接口时,WLAN特性可以在eNode B或RNC中经由OAM接口进行配置。在该示例中,eNode B或RNC可以基于WLAN AP的状态或状况信息和/或WLAN AP的位置来选择目标WLAN AP。
在一个实施例中,选定WLAN AP信息可以经由OAM接口被提供给eNode B。在另一实施例中,选定WLAN AP信息可以包括:WLAN AP标识符,例如,服务集标识(SSID)、基本SSID(BSSID)、根据电气与电子工程师协会(IEEE)802.11u热点2.0(HS 2.0)标准的漫游联盟列表、根据IEEE 802.11u HS2.0标准的网络地址标识符(NAI)领域列表、或根据IEEE 802.11uHS2.0标准的使用完全合格域名(FQDN)的域名列表;WLAN AP的媒体访问控制(MAC)规范和物理层(PHY)规范,例如,基于电气与电子工程师协会(IEEE)802.11g标准、IEEE 802.11n标准、IEEE 802.11ac标准、IEEE 802.11-2012标准或IEEE 802.11ad标准的的MAC规范和PHY规范;无线电频率参数,例如,用于传输数据的WLAN AP的频带或信道带;WLAN AP的状态或状况信息,例如拥塞状态、非拥塞状态、耦合于因特网连接状态的在线状态或离线状态;WLAN AP的位置;或WLAN的流量负载信息或回程负载信息,例如,根据一个或多个HS 2.0广接入网(WAN)指标的回程负载信息。
在一个实施例中,蜂窝网络可以是第三代(3G)蜂窝网络。在一个示例中,3G蜂窝网络的OAM接口可以将一个或多个WLAN AP的可用性状态传输至无线网络控制器(RNC)。在另一示例中,轻量级WLAN AP可以由访问控制器(AC)采用和控制。在该示例中,OAM NM可以将一个或多个WLAN AP的可用性状态与AC进行传输。在另一实施例中,蜂窝网络可以是3GPP长期演进(LTE)蜂窝网络,例如,3GPP Rel.8、Rel.9、Rel.10、Rel.11或Rel.12。
在一个实施例中,针对以UE为中心的WLAN卸载和/或以网络为中心的WLAN卸载,通信网络中的eNode B可以确定在eNode B的小区覆盖范围内的WLAN AP的数量和每个WLANAP的状态或状况。图2示出具有eNode B 210以及在eNode B 210的小区1和2中分别具有WLAN AP1-5和WLAN AP 11-14的通信网络。图2还示出WLAN AP 1-5是小区1的下层WLAN AP而WLAN AP 11-14是小区2的下层WLAN AP。
图3示出了蜂窝网络中具有多个eNode B网络元件(NE)310和WLAN AP 320的OAM架构300。图3还示出说明经由网络管理器(NM)340从WLAN域管理器(DM)330接收用于流量卸载的WLAN AP信息的eNode B NE 310。在一个配置中,用于流量卸载的WLAN AP信息可以在控制平面或管理平面(例如,NM 340)上在eNode B NE 310和WLANDM 330之间进行传输。在另一实施例中,WLAN DM可以经由NM 340与WLAN元件管理器(EM)360相关联。
在一个实施例中,WLAN DM 330可以从多个WLAN AP 320接收WLAN AP信息。在一个示例中,WLAN DM 330可以获取基于轮询机制或触发从WLAN AP 320报告的关于多个WLANAP 320的WLAN AP信息。在一个示例中,eNode B NE 310可以向NM 340请求关于蜂窝网络小区中的相邻或下层WLAN AP 320的WLAN AP信息。eNode B NE 310可以经由WWAN DM 350将该请求传输至NM 340。在一个实施例中,eNode B NE 310可以确定针对来自NM 340的WLANAP信息发起请求的频率或条件。在一个示例中,当eNode B NE 310超负荷时,eNode B NE310可以请求来自WLAN DM 330的WLAN AP信息。在该示例中,当eNode B NE 310接收WLANAP信息时,eNode B NE 310可以向UE提供WLAN AP信息以帮助UE选择用于卸载的WLAN AP320。在一个配置中,eNode B NE 310可以请求与在通信网络的特定位置或小区内的WLANAP 320相关联的WLAN AP信息。
在一个配置中,eNode B NE 310可以为UE选择将流量卸载至的WLAN AP 320。在一个实施例中,eNode B NE 310可以请求针对多个WLAN AP 320的WLAN AP信息并且使用该WLAN AP信息来选择WLAN AP 320卸载数据流量。在另一实施例中,被发送至每个eNode BNE 310的WLAN AP信息可以是基于eNode B NE 310的位置和/或eNode B NE 310的覆盖区域。在另一实施例中,信息可以在使用第二类接口的WWAN DM 350和NM 340、或WLAN DM 330和NM 340之间进行传输。在另一实施例中,信息可以在使用1类接口的WWAN DM 350和eNodeB NE 310、或WLAN DM 330和WLAN AP 320之间进行传输。
图4示出向所选eNode B传输下层WLAN AP信息的流程图。在一个配置中,OAM系统可以提供eNode B与在eNode B的小区内的下层WLAN AP进行通信的系统架构,如图2所示。在一个实施例中,WLAN DM 410可以将WLAN AP系统参数配置传输至NM 420,如框450。在另一实施例中,NM可以将一个或多个WLAN AP的下层WLAN AP信息传输至WWAN DM 430,如框460。WWAN DM 430可以将一个或多个WLAN AP的下层WLAN AP信息传输至eNode B NE 440,如框470。
图5示出针对eNode B的覆盖区域内的多个WLAN AP 1-5的下层WLAN AP信息的表格。图5还描绘了WLAN AP信息可以包括:WLAN AP标识符;WLAN AP的MAC规范和PHY规范;射频参数;WLAN AP的状态或状况信息;WLAN AP的位置;和/或WLAN AP的流量负载信息。
图6示出eNode B NE 640从可用WLAN AP的列表中移除已经切换至离线状态的WLAN AP的流程图。在一个实施例中,WLAN DM 610可以将指示WLAN AP已经切换至离线状态的WLAN AP离线通知传输至NM 620,如框650。在另一实施例中,NM可以将指示把具有离线状态的WLAN AP从可用WLAN AP的列表中移除的消息传输至WWAN DM 630,如框660。在另一实施例中,WWAN DM可以将指示把具有离线状态的WLAN AP从可用WLAN AP的列表中移除的消息传输至eNode B NE 640,如框670。在另一实施例中,OAM接口可以向eNode B NE传输消息以指示从可用WLAN AP的列表中移除已经切换至离线状态的WLAN APWLAN AP的列表。
图7示出eNode B 740将已经切换至在线状态的WLAN AP加入可用WLAN AP的列表的流程图。在一个实施例中,WLAN DM 710可以将指示已经切换至在线状态的WLAN AP的WLAN AP在线通知传输至NM 720,如方框750。在另一实施例中,NM可以将WWAN DM 730传输消息以指示把具有在线状态的WLAN AP加入可用WLAN AP的列表,如框760。在另一实施例中,WWAN DM可以向eNode B NE 740传输消息以指示把具有在线状态的WLAN AP加入可用WLAN AP的列表,如框770。在另一实施例中,OAM接口可以向eNode B传输消息以指示把已经切换至在线状态的WLAN AP加入可用WLAN AP的列表。
图8示出eNode B NE 840将切换至拥塞状态的WLAN AP从可用WLAN AP的列表中移除的流程图。在一个实施例中,当WLAN AP的数据流量负载超过阈值时,WLAN AP可以切换至拥塞状态。在另一实施例中,WLAN DM 810可以将指示WLAN AP已经切换至拥塞状态的消息(例如,WLAN AP拥塞通知)传输至NM 820,如框850。在另一实施例中,NM可以向WWAN DM 830传输消息以指示把具有拥塞状态的WLAN AP从可用WLAN AP的列表中移除,如框860。WWANDM可以向eNode B NE 840传输消息以指示把具有拥塞状态的WLAN AP从可用WLAN AP的列表中移除,如框870。在一个实施例中,OAM接口可以向eNode B NE传输消息以指示把已经切换至拥塞状态的WLAN AP从可用WLAN AP的列表中移除。
图9示出eNode NE 940将已经切换至非拥塞状态的WLAN AP加入可用WLAN AP的列表的流程图。在一个实施例中,当WLAN AP的数据流量负载降低到阈值以下时,WLAN AP可以切换至拥塞状态。在一个实施例中,WLAN DM 910可以将指示WLAN AP已经切换至非拥塞状态的消息(例如,WLAN AP非拥塞通知)传输至NM 920,如框950。在另一实施例中,NM可以向WWAN DM 930传输消息以指示把具有非拥塞状态的WLAN AP加入可用WLAN AP的列表,如框960。在另一实施例中,WWAN DM可以向eNode B NE 940传输消息以指示把具有非拥塞状态的WLAN AP加入可用WLAN AP的列表,如框970。在一个实施例中,OAM接口可以向eNode B NE传输消息以指示把已经切换至非拥塞状态的WLAN AP加入可用WLAN AP的列表。
图10示出用于数据流量卸载的以网络为中心的WLAN选择的流程图。图10还示出接收包括一个或多个WLAN AP的状态或状况信息(如在先前段落所讨论的)和该一个或多个WLAN AP的位置的WLAN AP状态报告的eNode B 1030。在一个实施例中,WLAN AP 1010可以将WLAN AP状态报告传输至NM 1020,如框1050。在另一实施例中,NM可以将WLAN AP状态报告传输至eNode B,如框1060。在另一实施例中,eNode B可以将测量控制传输至UE 1040,如框1070。在另一实施例中,UE可以将测量报告传输至eNode B,如框1072。在另一实施例中,eNode B可以向UE传输指导命令,如框1074。在另一实施例中,UE可以向eNode B发送确认消息,如框1076。在一个示例中,确认消息可以指示UE已经从eNode B接收到了指导命令。使用状态或状况信息的Wi-Fi卸载的一个优势是当WLAN AP可用并且不拥塞时提高WLAN AP的利用率。使用状态或状况信息的Wi-Fi卸载的另一优势是通过减少确定何时向WLAN AP卸载UE的数据流量的WLAN扫描或者WLAN发现LAI减少电池消耗。
另一示例提供可操作来选择在多无线接入技术(multi-RAT)通信网络的小区中的无线节点的用户设备(UE)的电路的功能1100,如图11中的流程图所示。该功能可以作为方法来实现或者该功能可以作为指令在机器上执行,其中这些指令被包含在至少一个计算机可读介质或至少一个非暂态机器可读存储介质上。电路可以被配置为基于经由操作管理和维护(OAM)系统传输的无线接入网络(RAN)辅助信息来确定何时将UE的数据流量卸载至在multi-RAT通信网络中的无线局域网络(WLAN)接入点(AP),如框1110。电路还可以被配置为利用RAN辅助信息识别multi-RAN通信网络中的一个或多个WLAN AP的状态,如框1120。电路还可以被配置为基于选择标准选择用于通信的multi-RAT通信网络中的无线节点,如框1130。
在一个实施例中,无线节点可以是无线广域网(WWAN)节点或WLAN AP。在另一实施例中,选择标准可以是一个或多个WLAN AP的状态。在另一实施例中,OAM系统包括WLAN域管理器(DM)元件管理器(EM)、WLAN网络管理器(NM)、以及WWAN DM EM中的至少一个。
在一个实施例中,电路还可以被配置为至少部分基于一个或多个WLAN AP的状态来卸载数据流量。在另一实施例中,一个或多个WLAN AP的状态可以是在线状态、离线状态、耦合于互联网连接状态、拥塞状态、或非拥塞状态。在另一实施例中,WLAN AP的在线状态能够指示WLAN AP正在活动地发送数据或活动地接收数据;并且WLAN AP的离线状态能够指示WLAN AP未活动地发送数据或未活动地接收数据。在另一实施例中,电路可以进一步被配置为当一个或多个WLAN AP在在线状态以及非拥塞状态时确定将UE的数据流量卸载至所选WLAN AP。在另一实施例中,电路还可以被配置为将UE的数据流量导向无线广域网(WWAN)节点:当一个或多个WLAN AP的状态是离线状态或拥塞状态时;当没有WLAN AP位于通信网络的小区中时;或当UE没有从RAN接收到RAN辅助信息时。在另一实施例中,电路还可以被配置为至少部分基于RAN辅助信息选择一个或多个WLAN AP中的WLAN AP来卸载数据流量。在另一实施例中,电路还被配置为经由广播信令或专用信令从RAN接收RAN辅助信息。在另一实施例中,电路还被配置为:从一个或多个WLAN AP接收WLAN测量值和WLAN信息;获取卸载策略:从接入网发现和选择功能(ANDSF)模块;经由开放移动联盟设备管理(OMA-DM)程序;或在UE处预配置;以及至少部分基于WLAN测量值、WLAN信息、和卸载策略来选择一个或多个WLAN AP中的WLANAP来卸载数据流量。
另一示例提供了可操作来确定用户设备(UE)何时将数据流量卸载至通信网络的小区中的无线局域网络(WLAN)节点的演进型节点B(eNode B)的电路的功能1200,如图12中的流程图所示。该功能可以作为方法来实现或者该功能可以作为指令在机器上执行,其中这些指令被包含在至少一个计算机可读介质或至少一个非暂态机器可读存储介质上。电路可以被配置为经由通信网络的网络管理器(NM)从WLAN接入点(AP)接收指示小区中的一个或多个WLAN AP的状态的WLAN AP状态报告,如框1210。电路还可以被配置为基于针对UE的一个或多个WLAN AP的状态,将标识目标WLAN AP的测量控制信息传输至UE以采用目标WLANAP的选定测量值,如框1220。电路还可以被配置为从UE接收包括选定测量值的信息的目标WLAN AP的测量值报告,如框1230。电路还可以被配置为向UE传输指导命令,其中指导命令指示UE将选定数据流量导向的无线节点,如框1240。
在一个实施例中,无线节点可以是无线广域网(WWAN)节点或WLAN AP。在另一实施例中,指导命令可以基于来自UE的测量报告。在另一实施例中,电路还可以被配置为:从操作管理和维护(OAM)接口接收WLAN AP信息;以及利用所述一个或多个WLAN AP中的每个WLAN AP的WLAN AP信息确定一个或多个WLAN AP的可用性。
在一个实施例中,WLAN AP信息包括WLAN AP的标识符、WLAN AP的介质访问控制(MAC)规范和物理层(PHY)规范、WLAN AP的射频参数、WLAN AP的状态信息、WLAN AP的位置、或WLAN AP的流量负载信息。在另一实施例中,WLAN AP的标识符可以是服务集标识符(SSID)、基本SSID(BSSID)、根据电气与电子工程师协会(IEEE)802.11u热点2.0(HS2.0)标准的漫游联盟列表、根据IEEE 802.11u HS2.0标准的网络地址标识符(NAI)、或者根据IEEE802.11u HS2.0标准使用完全合格域名(FQDN)的域名列表。在另一实施例中,WLAN AP的射频参数可以是用于传输数据的WLAN AP的频带或信道组。在另一实施例中,电路还可以被配置为确定在通信网络小区内的WLAN AP的数量并且编译在通信网络的小区中可用于卸载的WLAN AP的列表。
在一个实施例中,电路还可以被配置为:当选定WLAN AP的状态变为离线状态时从可用WLAN AP的列表中移除选定WLAN AP;当选定WLAN AP的状态变为拥塞状态时从可用WLAN AP的列表中移除选定WLAN AP;当选定WLAN AP的状态变为在线状态时将WLAN AP加入可用WLAN AP的列表。并且选定WLAN AP的状态变为非拥塞状态时将WLAN AP加入可用WLANAP的列表。在另一实施例中,电路还可以被配置为基于一个或多个WLAN AP的状态识别UE的目标WLAN AP以采用选定测量值。
另一示例提供了包括其上存储有指令的非暂态存储介质的产品的功能1300,这些指令被适配为被执行来实现选择在通信网络中的无线本地接入网络(WLAN)接入点(AP)以卸载用户设备(UE)的数据流量的方法,如图13中的流程图。该产品的指令可以作为方法或者作为器件上的指令来实现,其中,这些指令被包含在至少一个计算机可读介质或至少一个非暂态机器可读存储介质上。该方法可以包括在UE处从演进型节点B(eNode B)接收标识UE的目标WLAN AP的测量控制信息以采用目标WLAN AP的选定测量值,如框1310。该方法还包括将测量报告从UE传输至包括选定测量值的信息的目标WLAN AP的eNode B,如框1320。该方法还包括在UE处从eNode B接收数据流量指导命令信息,其中,数据流量指导命令信息指示UE将数据流量导向的WLAN AP,如框1330。
在一个实施例中,该方法还包括将指示UE已经从eNode B接收到指导命令的确认消息从UE传输至eNode B。在另一实施例中,UE的数据流量指导命令信息可以是在无线资源控制(RRC)连接状态或小区专用信道(DCH)状态,并且UE可以由使用专用流量指导命令的通信网络中的网络元件控制。在另一实施例中,网络元件可以是开放移动联盟设备管理器、操作管理和维护(OAM)网络管理器(NM)、eNode B、或无线电网络控制器(RNC)。在另一实施例中,专用流量指导命令可以基于WLAN AP的选定测量值。在另一实施例中,该方法还包括UE基于测量控制信息从eNode B接收标识选定WLAN AP的WLAN AP标识(ID)信息以采用选定测量值,并且UE采用测量报告的选定WLAN AP的选定测量值来进行测量报告。在另一实施例中,可以基于一个或多个WLAN AP的状态来识别目标WLAN AP。
图14提供了无线设备(例如,用户设备(UE)、移动站(MS)、移动无线设备、移动通信设备、平板电脑、手机、或其它类型的无线设备)的示例图示。无线设备可以包括被配置为与节点或传输站(例如,基站(BS)、演进型节点B(eNode B)、基带单元(BBU)、远程无线电头端(RRH)、远程无线电设备(RRE)、中继站(RS)、无线电设备(RE)、远程无线电单元(RRU)、中央处理模块(CPM)、或其它类型的无线广域网(WWAN)接入点)通信的一个或多个天线。无线设备可以被配置为利用包括以下各项中至少一项的无线通信标准进行通信:3GPP LTE、WiMAX、高速分组接入(HSPA)、蓝牙、和Wi-Fi。无线设备可以利用针对每个通信标准独立的天线或者针对多个无线通信标准共享的天线进行通信。无线设备可以在无线局域网络(WLAN)、无线个人区域网络(WPAN)、和/或WWAN中进行通信。
图14还提供了可被用于无线设备的语音输入和输出的麦克风和一个或多个扬声器的示例。显示屏可以是液晶显示(LCD)屏、或其它类型的显示屏,例如,有机发光二极管(OLED)显示屏。显示屏可以被配置成触摸屏。触摸屏可以利用电容、电阻或其它类型的触摸屏技术。应用处理器和图形处理器可以耦合于内部存储器以提供处理和显示能力。非易失性存储器端口还可以向用户提供数据输入/输出选择。非易失性存储器端口还可以被用于扩展无线设备的存储能力。键盘可以与无线设备相集成或者与无线设备无线连接以提供额外的用户输入。还可以利用触摸屏来提供虚拟键盘。
各种技术或其某方面或部分可以采用体现于有形介质(例如,软盘、CD-ROM、硬驱动、非暂态计算机可读存储介质、或任意其它机器可读存储介质)中的程序代码的形式,其中,当程序代码被载入机器(例如,计算机)并且在机器上执行时,该机器变成实践各种技术的装置。在程序代码在可编程计算机上执行的情况下,计算设备可以包括处理器、处理器可读的存储介质(包括易失性和非易失性存储器和/或存储元件)、至少一个输入设备、和至少一个输出设备。易失性和非易失性存储器和/或存储元件可以是RAM、EPROM、闪速驱动、光驱动、硬磁盘驱动、或其它用于存储电子数据的介质。基站和移动站还可以包括收发器模块、计数器模块、处理模块、和/或时钟模块或定时器模块。可以实施或利用本文所述的各种技术的一个或多个程序可以利用应用编程接口(API)、可重用控制等。这样的程序可以以高级过程或面向对象的编程语言来与计算机系统进行通信。然而,如果需要的话,(一个或多个)程序可以以汇编语言或机器语言来实现。在任何情况下,语言可以是编译或解释语言并且与硬件实现方式相结合。
应该理解是本说明书中描述的功能性单元中很多被标记为模块,以便更具体地强调它们实现的独立性。例如,模块可以被实现为包括定制VLSI电路或门阵列、成品半导体(例如,逻辑芯片)、晶体管、或其它分立元件的硬件电路。模块还可以在可编程硬件设备(例如,现场可编程门阵列、可编程阵列逻辑、可编程逻辑设备等)中实现。
模块还可以在由各种处理器执行的软件中实现。经标识的可执行代码的模块可以,例如,包括例如可以被组织成对象、程序或功能的计算机指令的一个或多个物理或逻辑框。然而,经标识的模块的执行文件不需要物理地放置在一起,而是可以包括存储在不同位置的不相干指令,这些指令当被逻辑地结合在一起时包括该模块并且实现该模块的规定用途。
事实上,可执行代码的模块可以是单一指令或多个指令,并且甚至可以分布在多个不同的代码片段、不同的程序和多个存储器设备中。类似地,可操作数据可以在本文的模块内被识别或示出,并且可以以任意适当的形式体现并且被组织在任意适当类型的数据结构中。可操作数据可以被收集为单一数据集、或者分布于包括多个不同存储设备的不同位置,并且可以至少部分地只作为系统或网络上的电子信号存在。模块可以是无源或有源的,包括可操作来执行所需功能的代理。
说明书通篇提及的“示例”表示与包含在本发明的至少一个实施例中的示例相关的具体特征、结构或特性。因此,贯穿说明书的各个位置的词组“在一个示例中”不一定全部指代相同的实施例。
如本文所用,为了方便,多个项目、结构元件、组合元件、和/或材料可以存在于同一列表中。然而,这些列表应该被解释为列表中的每个元件被独立标识为单独和唯一的元件。因此,在没有相反的指示的情况下,仅仅基于它们出现在同一群组,该列表中没有单独的元件应该被解释成是相同列表中的任意其它元件的实际等同物。此外,本发明的各种实施例和示例在本文中可以连同其各种组件的替换物被提及。应该理解的是这些实施例、示例和替换不应被解释成彼此的实际等同物,而应该被认为是本发明的独立和自主表示。
此外,在一个或多个实施例中所述特征、结构或特性可以以任意适当的形式相结合。在下文的描述中,提供了大量具体的细节(例如,布局、距离、网络示例等的示例)以提供对本发明的实施例的彻底理解。然而,本领域的相关技术人员应该承认本发明可以在没有一个或多个具体细节的情况下、或者在具有其它方法、组件、布局等的情况下实践。在其它实例中,没有详细示出或描述已知的结构、材料或操作以免模糊本发明的方面。
虽然上述示例在一个或多个具体应用中示出了本发明的原则,但对本领域的相关技术人员而言,在不付出创造性劳动并且不背离本发明的原则和概念的情况下,可以对实现方式的形式、用法和细节进行大量修改是清楚的。因此,示例不打算限制本发明,除非是由提出的权利要求进行限制。

Claims (16)

1.一种演进型节点B即eNode B,可操作来确定用户设备UE何时将数据流量卸载至在通信网络的小区中的无线局域网WLAN节点,所述eNode B具有被配置为执行以下操作的电路:
经由所述通信网络的网络管理器NM从WLAN接入点AP接收指示所述小区中的一个或多个WLAN AP的状态的WLAN AP状态报告,其中,所述一个或多个WLAN AP的状态是在线状态、离线状态、耦合于互联网连接状态、拥塞状态、或非拥塞状态;
基于所述一个或多个WLAN AP的状态,将标识目标WLAN AP的测量控制信息传输至所述UE,以配置所述UE针对所述目标WLAN AP执行测量过程;
从所述UE接收所述目标WLAN AP的测量报告,所述测量报告包括所述测量过程的测量结果;以及
基于所述测量结果,将指导命令传输至所述UE,其中,所述指导命令指示所述UE将选定数据流量导向的无线节点。
2.根据权利要求1所述的eNode B,其中,所述无线节点是无线广域网WWAN节点或WLANAP。
3.根据权利要求1所述的eNode B,所述电路还被配置为:
从操作、管理和维护OAM接口接收WLAN AP信息;以及
利用一个或多个WLAN AP中的每个WLAN AP的WLAN AP信息确定所述一个或多个WLANAP的可用性。
4.根据权利要求3所述的eNode B,其中,所述WLAN AP信息包括以下各项:所述WLAN AP的标识符、所述WLAN AP的介质访问控制MAC规范和物理层PHY规范、所述WLAN AP的射频参数、所述WLANAP的状态信息、所述WLAN AP的位置、或所述WLAN AP的流量负载信息。
5.根据权利要求4所述的eNode B,其中,所述WLAN AP的标识符是:服务集标识SSID、基本SSID即BSSID、根据电气与电子工程师协会IEEE 802.11u热点2.0即HS2.0标准的漫游联盟列表、根据IEEE 802.11uHS2.0标准的网络地址标识符NAI领域列表、或根据IEEE802.11u HS2.0标准的使用完全合格域名FQDN的域名列表。
6.根据权利要求4所述的eNode B,其中,所述WLAN AP的射频参数是:所述WLAN AP的用于传输数据的频带或信道组。
7.根据权利要求1所述的eNode B,所述电路还被配置为:
确定在通信网络的所述小区内的WLAN AP的数量;以及
编译所述通信网络的所述小区中可用于卸载的WLAN AP的列表。
8.根据权利要求7所述的eNode B,所述电路还被配置为:
当选定WLAN AP的状态变成离线状态时从可用WLAN AP的列表中移除所述选定WLANAP;
当所述选定WLAN AP的状态变成拥塞状态时从所述可用WLAN AP的列表中移除所述选定WLAN AP;
当所述选定WLAN AP的状态变成在线状态时将WLAN AP加入所述可用WLAN AP的列表;以及
当所述选定WLAN AP的状态变成非拥塞状态时将WLAN AP加入所述可用WLAN AP的列表。
9.一种其上存储有指令的非暂态存储介质,所述指令在被演进型节点B即eNode B的处理器执行时使所述处理器执行确定用户设备UE何时将数据流量卸载至在通信网络的小区中的无线局域网WLAN节点的方法,所述方法包括:
经由所述通信网络的网络管理器NM从WLAN接入点AP接收指示所述小区中的一个或多个WLAN AP的状态的WLAN AP状态报告,其中,所述一个或多个WLAN AP的状态是在线状态、离线状态、耦合于互联网连接状态、拥塞状态、或非拥塞状态;
基于所述一个或多个WLAN AP的状态,将标识目标WLAN AP的测量控制信息传输至所述UE,以配置所述UE针对所述目标WLAN AP执行测量过程;
从所述UE接收所述目标WLAN AP的测量报告,所述测量报告包括所述测量过程的测量结果;以及
基于所述测量结果,将指导命令传输至所述UE,其中,所述指导命令指示所述UE将选定数据流量导向的无线节点。
10.根据权利要求9所述的非暂态存储介质,其中,所述无线节点是无线广域网WWAN节点或WLAN AP。
11.根据权利要求9所述的非暂态存储介质,所述方法还包括:
从操作、管理和维护OAM接口接收WLAN AP信息;以及
利用一个或多个WLAN AP中的每个WLAN AP的WLAN AP信息确定所述一个或多个WLANAP的可用性。
12.根据权利要求11所述的非暂态存储介质,其中,所述WLAN AP信息包括以下各项:所述WLAN AP的标识符、所述WLAN AP的介质访问控制MAC规范和物理层PHY规范、所述WLAN AP的射频参数、所述WLAN AP的状态信息、所述WLAN AP的位置、或所述WLAN AP的流量负载信息。
13.根据权利要求12所述的非暂态存储介质,其中,所述WLAN AP的标识符是:服务集标识SSID、基本SSID即BSSID、根据电气与电子工程师协会IEEE 802.11u热点2.0即HS2.0标准的漫游联盟列表、根据IEEE802.11u HS2.0标准的网络地址标识符NAI领域列表、或根据IEEE 802.11uHS2.0标准的使用完全合格域名FQDN的域名列表。
14.根据权利要求12所述的非暂态存储介质,其中,所述WLAN AP的射频参数是:所述WLAN AP的用于传输数据的频带或信道组。
15.根据权利要求9所述的非暂态存储介质,所述方法还包括:
确定在通信网络的所述小区内的WLAN AP的数量;以及
编译所述通信网络的所述小区中可用于卸载的WLAN AP的列表。
16.根据权利要求15所述的非暂态存储介质,所述方法还包括:
当选定WLAN AP的状态变成离线状态时从可用WLAN AP的列表中移除所述选定WLANAP;
当所述选定WLAN AP的状态变成拥塞状态时从所述可用WLAN AP的列表中移除所述选定WLAN AP;
当所述选定WLAN AP的状态变成在线状态时将WLAN AP加入所述可用WLAN AP的列表;以及
当所述选定WLAN AP的状态变成非拥塞状态时将WLAN AP加入所述可用WLAN AP的列表。
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