CN101438612B - 对于不同的业务或服务分类的无活动监控 - Google Patents
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Abstract
把要求不同的无活动定时器设置的不同的业务类型分配给不同的承载或者分配给不同的QoS分类。对于不同的业务类型建立不同的无活动定时器设置。把各单独的承载或者各单独的QoS分类关联到一个相应的无活动定时器简档。所述关联可以用多种方式来实现。例如,可以在3GPP QoS简档中采用一个附加的QoS参数,或者可以把一个新的QoS分类标识符映射到一种无活动定时器设置。不同的无活动定时器设置既允许对于某种业务使得UE电池功率节省优先,又允许对于其他业务使得终端用户体验优先(快速后续响应时间)。
Description
技术领域
本技术领域涉及通信,更具体来说,涉及区别对待分组数据业务。一种示例的有利应用是蜂窝通信系统。
背景技术
当前的蜂窝通信系统(例如基于第三代合作伙伴计划(3GPP)的系统)中的信令是基于把承载(用于在两点之间传送信息的逻辑和/或物理通信信道)与复杂的服务质量(QoS)简档相关联,其中所述复杂的服务质量(QoS)简档包括描述所述承载的所期望的QoS特性的许多参数。从在通用移动通信服务(UMTS)的情境中的3GPP技术规范(TS)23.107取得的图1示出不同的承载服务层的例子。承载服务是一种通信服务,其提供在接入点之间传输信号的能力。
在图1中,在几个级别上实现承载。在移动终端(MT)与无线接入网(RAN)之间有物理无线承载服务,以及在所述RAN与核心网络(CN)节点(比如服务GPRS支持节点(SGSN))之间有物理承载服务。在所述MT与RAN之间有无线承载服务,以及在所述RAN与所述SGSN之间有接入承载服务。在该级别上还有所述SGSN与CN网关(比如网关GPRS支持节点(GGSN))之间的骨干承载服务。无线接入承载(RAB)服务在所述MT与SGSN之间延伸,以及骨干承载服务在所述SGSN与所述GGSN之间延伸。此外还有终端设备(TE)到MT承载服务,以及从所述MT到所述GGSN的UMTS承载服务。该层还包括所述GGSN与所述连接TE的另一端之间的外部承载服务。顶层是两个TE之间的端到端服务。
在用户设备(UE)(UE=TE+MT)与所述GGSN之间建立分组数据协议(PDP)上下文,其对应于图1中的UMTS承载服务。所述PDP上下文是存在于所述SGSN、所述GGSN以及所述UE上的数据结构,当用户具有激活的通信会话(其在此被称作“连接”)时,所述PDP上下文包含该用户的通信会话信息。当移动终端想要使用图1中的承载服务时,其必须首先附着到所述网络并且随后激活PDP上下文。所述附着过程在位于所述用户正在附着的位置处的SGSN中以及在为所述用户的接入点提供服务的GGSN中分配一个PDP上下文数据结构。在所述GGSN和SGSN处所记录的数据包括用户的IP地址、国际移动用户标识符(IMSI)、以及隧道端点ID(TEID)。TEID是由所述GPRS支持节点(GSN)(所述SGSN和GGSN都是GSN)所分配的一个数字,其标识与特定PDP上下文相关的隧道数据。
采用3GPP QoS简档来定义为PDP上下文和RAB提供的服务质量。相应地,对分组数据业务的区别对待是基于建立具有不同QoS简档的承载以及把业务映射到这些不同的承载。在3GPP中正运作用更简单的QoS分类标识符(QCI)来替换所述相对较复杂的QoS简档及其大量QoS参数。QCI的意图是不包括承载的实际特性,而是仅仅提供一个指针,其指向在支持所述承载的各种节点(其中包括所述无线网络控制器(RNC))中所存储及实施的所规定的(预先配置的)业务转发策略。相应地,与所述QoS简档相比,所述QCI更容易用信号来通知并且所需要的带宽更少。本发明的发明人认识到,所述QCI开启了按照不同于利用当前的3GPP QoS参数所可能的方式区分所述业务的新的机会。
在PDP上下文及其相关联的RAB的存在期期间,所述移动无线连接可以关于为之所分配的无线资源操作在不同的活动水平状态下。例如在UMTS中,当某一移动台处于已连接模式下时,其可以采用定义UE正在使用哪一类物理信道的4种无线资源控制(RRC)连接状态的其中之一。在Cell_DCH状态下,把一条专用物理信道和/或共享信道(比如在HSDPA中)分配给所述UE。在Cell_FACH状态下,不为所述UE分配物理信道,而是使用随机接入信道。与所述Cell_DCH状态相比,所述UE使用较低电池功率但是可以侦听广播信道以获取系统信息。在Cell_PCH状态下,所述UE的位置在小区级别上是已知的,但是仅能通过寻呼信道到达所述UE。所述UE的电池消耗要少于所述Cell_FACH状态下的情况。URA_PCH状态非常类似于Cell_PCH状态,但是在所述URA_PCH状态下所述UE不执行小区更新,而是从广播信道读取登记区ID。在上述4种状态当中,所述URA_PCH状态使用最少量的电池功率。
所述3GPP规范允许所述RAN中的无线网络控制器(RAN)基于所述无线连接的活动水平来控制上述UE活动状态之间的过渡。例如,可以对于一种状态设置一个无活动定时器。当该定时器到期时,无线网络控制器(RNC)节点在所述UE中触发从当前活动状态到较低活动状态的过渡。在某些状态(例如WCDMA中的Cell_PCH和URA_PCH状态)下,还有可能基于所述连接活动来设置更长的“睡眠模式”(低功率)周期长度。对于更长的睡眠模式周期来说,所述UE的电池消耗更低。
在所述RNC节点中对于每个UE活动状态静态地配置无活动定时器。在触发了分组数据传输时,与所述无线连接处在更高活动状态下的情况相比,如果所述无线连接处在较低活动状态下,则等待时间(即使得所述移动台开始实质性的数据传送的响应时间)将会更长。例如,在所述Cell_DCH状态下已经把专用无线资源分配给了所述连接。另一方面,较低活动状态的一个显著的益处是所述UE中的较低电池消耗。因此,在等待时间与功率消耗之间存在折衷。
对于无活动定时器的静态设置取决于所计划的相关联的业务类型。具有“交互式”业务类型的QoS要求的业务对于无活动定时器设置的等待时间要求更为严格。web业务事务是交互式业务的一个例子,在检测到分组数据业务的条件下,所述web业务事务有更高的概率在短时间段内出现后续的继续分组数据业务。例如,如果用户开始进行web浏览,则有可能将在该用户阅读了所述web页面的某一部分之后加载新的web页面。一旦启动了浏览会话,所述用户就对于web页面链接上的后续点击预期短的响应时间(低等待时间)。因此,对应于这种交互式业务的无活动定时器应当相当长(例如长于web页面的平均阅读时间),从而在所述web浏览会话期间允许快速响应时间。虽然可以把所有的无活动定时器都设置成针对所述交互式业务类型进行优化,但是本发明的发明人认识到,存在不具有所述相同要求的其他类型的业务。
本发明的发明人认识到,例如在检测到单一分组数据传输的条件下,面向消息的业务通常具有较低的概率在短时间段内发生附加的事务。这种业务类型例如包括推送式电子邮件事务、IP多媒体子系统(IMS)订购/通知机制(比如存在业务)、机器对机器计量通信、或者诸如SIP消息之类的即时消息(IM)以及诸如SIP订购/通知之类的纯存在业务。由于附加传输的概率低,因此对于后续响应时间的要求就不那么关键。相应地,在传输了单一分组数据突发之后,所述无线连接应当很快返回到较低活动状态,以便节省UE电池功率。因此,对于面向消息的业务应当把无活动定时器设置得较短,从而使得到时更快地发生,并且所述UE可以切换到较低功率消耗状态。同样地,对于所述较低活动水平的折衷意味着更高的等待时间(响应时间),从而用户将必须等待比对应于web类型事务业务通信的情况更长的时间。
因此,静态无活动定时器设置的一个显著缺陷在于,具有类似的QoS要求的业务被映射到具有相同QoS参数的相同承载,但是在涉及无活动定时器设置时,所述业务可能具有不同的等待时间和/或电池功率节省要求。可以对于所有不同类型的业务使用一种折衷的但是不那么令人满意的无活动定时器设置。可选择地,可以把具有类似的QoS要求但是具有不同的无活动定时器设置要求的业务分离到不同的承载上。遗憾的是,在当前的3GPP QoS简档中没有参数用来指示所述业务对于有区别的无活动定时器设置的特性。因此,一个很重要的问题是如何对于不同的业务类型区分移动台活动状态过渡,以及如何在对于响应时间/等待时间、资源使用和电池功率的要求之间允许有区别的平衡。
发明内容
把要求不同的无活动定时器设置的不同的业务类型分配给不同的承载或者分配给不同的QoS分类。对于不同的业务类型建立不同的无活动定时器设置。把各单独的业务承载或者各单独的业务QoS分类关联到一个相关联的无活动定时器简档。所述关联可以用多种方式来实现。例如,可以在3GPP QoS简档中采用一个附加的QoS参数,或者可以把一个新的QoS分类标识符(例如QCI)关联到一种无活动定时器设置。不同的无活动定时器设置允许对于某种业务使得功率节省优先,并且对于其他业务使得终端用户体验优先(快速后续响应时间)。
假设已经建立了与移动无线节点的连接,于是确定与所述连接相关联的业务类型。基于与所述连接相关联的业务类型来确定多个不同的无活动时间段的其中之一。随后生成关于所述其中一个无活动时间段的信息,随后可以使用所述信息来监控该无活动时间段是否已到期而没有在所述连接上检测到该类业务的任何活动。
可以把对应于所述业务类型的无活动时间段设置成平衡对于与该业务类型相对应的响应时间、资源使用、以及功率消耗的要求。示例业务类型包括多事务活动类型和单一事务活动类型。对应于所述多事务活动类型的无活动时间段比对应于所述单一事务活动类型的无活动时间段更长,从而在所述UE中使得较低等待时间优先于电池节省。多事务业务类型的特定例子包括web业务、虚拟专用网(VPN)业务、IP多媒体核心网络子系统(IMS)呼叫控制信令、基于蜂窝的即按即说(PoC)业务、电子邮件访问、或者未识别的因特网业务。单一事务活动类型的例子包括:推送式电子邮件通知业务、即时消息传送(IM)、订购及通知业务、IMS存在业务、机器对机器业务、资费计量业务、或者周期性监视视频业务。
可以定义一个指示所述其中一个无活动时间段的协议参数。由所述连接所载送的数据业务与服务质量分类相关联,并且把一个指示服务质量分类的参数(例如质量控制指示符(QCI))用作指示所述其中一个无活动时间段的协议参数。可以在被用来建立或修改与所述连接相关联的一个或多个承载或服务质量的控制信令中传送所述指示无活动时间段的协议参数。可选择地,可以在与所述连接相关联的业务数据分组中提供指示所述其中一个无活动时间段的所述协议参数。
在分组检查节点处,可以通过检查与移动核心网络中的所述连接相关联的分组的内容并且根据一种或多种移动核心网络运营商策略对其进行分类来确定所述业务类型。可选择地,可以通过在授权由对应于所述连接的会话级别信令所建立的媒体流中所涉及的策略控制节点来确定所述业务类型。策略控制节点控制特定业务类型到承载(对应于所述GRPS、PDP上下文)的映射。由无线接入网(RAN)节点基于与该承载相对应的协议参数指示来确定所述无活动时间段。可选择地,所述协议参数向所述RAN节点明确指示关于所述无活动时间段的值。
可以在负责监控无活动定时器的网络节点处接收与所述连接相关联的业务类型的指示以及多个不同的无活动时间段的其中之一。该节点确定所述其中一个无活动时间段是否已到期而没有在所述连接上检测到所述类型业务的活动。如果所述其中一个无活动时间段已到期,则所述节点发送信息以用于把所述移动式无线台的当前活动状态改变为较低功率消耗移动状态。当对于所述连接建立了多个承载时,所述节点基于与每一个承载相关联的业务类型来为所述连接中的每一个承载建立所述多个不同的无活动时间段的其中之一。如果对应于为所述连接建立的所有承载的相关联的无活动定时器都已到期,则所述节点随后用信号通知把所述移动状态改变为较低功率状态。
另一种示例实施方式是在所述移动无线节点中。假设所述移动终端操作在第一活动状态下。该移动终端基于为与所述连接相关联的业务类型所建立的无活动时间段到期而接收到来自无线接入网的状态改变信号。响应于该状态改变信号,所述移动终端把操作从当前状态改变为较低功率消耗状态以便节省电池。所述较低功率消耗状态例如可以是深度睡眠模式状态,以及所述当前状态可以是当在所述连接上传送数据时所使用的较高功率状态。一种非限制性UMTS上下文中的示例状态包括:如上所述的cell_DCH、cell_FACH、cell_PCH以及URA_PCH状态。所述cell_PCH和URA_PCH状态还可以包括可变睡眠模式周期,所述移动终端可以切换到其中。在一个优选实例中,根据以下各项当中的一项或多项来定义每一个移动状态:被分配给所述连接的无线资源水平、所述移动终端的功率消耗水平、或者与过渡到其中可能发生数据传输的移动状态相关联的延迟。
在另一种非限制性示例实施方式中,对于与一个或多个移动无线台的数据通信建立多个服务分类。所述服务分类包括服务质量分类或业务分类。确定与每一个服务分类相关联的业务类型,并且对于每一个服务分类确定相关联的无活动时间段。监控所述相关联的无活动时间段,以便确定其是否已到期而没有检测到所述连接的每一个服务分类的业务活动。
附图说明
图1是示出示例UMTS承载服务的不同层的图;
图2是示出一个示例电信网络的图,其中可以有利地使用在本申请中所描述的技术;
图3是示出对应于移动连接中的不同应用的不同PDP上下文和无线接入承载的功能方框图;
图4是示出可以被用来实施所述UMTS实例中的所述技术的RAN节点中的各种实体的功能方框图;
图5是示出在所述RAN节点中实施的非限制性示例过程的流程图;
图6是一个非限制性UMTS实例的功能方框图,其示出对应于连接中的不同承载的QCI的建立和实施;
图7是用于建立具有特定QCI的IP连接的非限制性示例信令图;
图8是一个更详细的但仍然是非限制性的示例信令图;
图9是示出激活PDP上下文的非限制性示例信令图,其中建立了对应于所述PDP上下文的QCI;
图10是对应于把推送式电子邮件递送到所述移动终端的非限制性示例信令图;以及
图11是一个非限制性示例信令图,其中所述移动终端在同时使用短、长无活动时间段定时器的会话中运行3个应用。
具体实施方式
出于解释而非限制的目的,在下面的描述中阐述了诸如特定节点、功能实体、技术、协议、标准等之类的特定细节以便提供对所描述的技术的理解。对于本领域技术人员而言下述将是显而易见的,即可以在没有下面所公开的特定细节的情况下实践其他实施例。在其他实例中省略了对于公知的方法、设备、技术等的详细描述,以免用不必要的细节来模糊这里的描述。在附图中示出各单独的功能块。本领域技术人员将认识到,可以通过以下方式实施所述功能块的功能:使用单独的硬件电路,与适当编程的微处理器或通用计算机相结合地使用软件程序和数据,使用专用集成电路(ASIC)、现场可编程门阵列、一个或多个数字信号处理器(DSP)等等。
随着电信系统的发展,利用多媒体传输的服务已经变得越来越普遍。3GPP IP多媒体核心网络子系统(IMS-CN)允许运营商以标准化的方式提供基于因特网应用、服务和协议并且建立在其上的用户多媒体服务。虽然可以在能够提供多媒体通信服务的任何通信系统中使用下面的技术,但是在图1中示出一个示例的第三代(3G)移动通信系统。
可以在逻辑上把公共陆地移动网络(PLMN)基础设施分成核心网络(CN)基础设施9、10、11、12和接入网(AN)基础设施5、6、7、8。接入网可以是用于GSM的基站子系统(BSS)8以及用于UMTS的无线网络子系统(RNS)或无线接入网(RAN)5、6、7。在所述3GPP技术规范中,所述核心网络在逻辑上被分成电路交换(CS)域9、分组交换(PS)域10、11以及IP多媒体子系统(IMS)12。所述CS域指代为用户业务提供CS类型的连接的所有CN实体以及支持相关的CS信令的所有实体的集合。CS连接是这样一种连接,其中在建立连接时为之分配专用网络资源并且在释放该连接时释放所述专用网络资源。PS类型的连接利用分组传送用户信息,从而可以与前一个分组独立地路由每一个分组。所述PS域的一个例子是所述通用分组无线服务(GPRS),以及典型实体可以包括服务GPRS支持节点(SGSN)、网关GPRS支持节点(GGSN)、以及策略和计费规则功能(PCRF)。耦合到所述PS-CN的还有非IM服务网络14,其包括推送式电子邮件服务器和web服务器。
在概念上,基于分组的媒体通信系统被提供在所述移动网络之上,以便通过所述通信系统为所述用户设备UE提供媒体通信服务。所述IP多媒体子系统(IMS)包括用来提供多媒体服务的核心网络元件。所述IMS利用所述PS域来传送多媒体信令和承载业务,并且包括用来控制多媒体会话“流”过程的呼叫会话控制功能(CSCF)。在期望的情况下可以在代理CSCF(P-CSCF)、询问CSCF(I-CSCF)与服务CSCF(S-CSCF)之间划分所述CSCF功能。所述CSCF通常包含一个用户数据库,在所述用户终端向所述CSCF登记时把所需的订购数据下载到所述用户数据库中。所述CSCF还可以与所述IMS中的或者所述IMS之外的策略和计费规则功能(PCRF)相关联。
图3示出一个非限制性示例实施例,其用于根据运营商策略区分不同服务的业务以及用于把该业务映射到对应于与所述UE的多媒体IP连接的不同承载。术语“UE”包含能够通过无线接口与接入网进行通信的任何类型的移动终端设备。术语“移动终端MT”在下面常常可与UE互换地使用。所述承载被显示为“管道”,其用于在运行于所述UE上的两个应用A和B与运行在所述网络中的另一个远程UE(远程UE)或应用服务器上的两个对应应用A和B之间传送分组数据。(所述UE与所述网络之间的总体通信被称作“连接”)。每一个承载对应于与相应的QoS分类指示(QCI)相关联的PDP上下文和无线接入承载(RAB)。在建立每一个承载时把该承载的QCI提供到所述无线接入网(RAN)。利用被表示为“x”的第一QoS分类指示(QCI)建立与传送用于应用A的分组数据相关联的第一承载PDP上下文1/RAB1。利用被表示为“y”的不同的第二QoS分类指示(QCI)建立与传送用于应用B的分组数据相关联的第二承载PDP上下文2/RAB2。
所述服务递送控制系统的策略控制负责对于由承载提供的各种服务的策略控制,其中包括关于为不同的业务分类或不同的服务提供不同的无活动时间段的策略。所述策略由IMS运营商配置。例如,所述策略控制为每一个承载建立相应的QoS策略,并且利用在相关的节点处配置的分组过滤器对于通过所述承载传送的业务实施所述QoS策略。如图3中所示,所述UE和所述GGSN分别为每一个承载配置一个分组过滤器(其被显示为三角形),以便确保每一个承载仅仅传送所同意的业务。还可以通过单独的分组检查对分组业务进行分类。除了为承载建立典型的QoS参数(比如传输延迟、保证比特率、优先级、误比特率等或者仅有QCI)之外,所述策略控制优选地(尽管不是一定)为与每一个承载相关联的不同的业务或服务分类建立不同的无活动时间段。虽然在图3中显示为从所述服务递送控制系统组织所述策略控制,但是也可以在其他位置处按照多种方式来实施所述策略控制,并且该策略控制框架的一部分可以被分布到所述UE。
可以使用各种方式来指示对应于与每一个承载相关联的不同的业务或服务分类的不同的无活动时间段。一种方式是隐含地用信号通知所述无活动时间段,这是通过作为指向在所述RAN(或别处)预先配置的QoS简档的“指针”来用信号通知QCI,并且在预先配置在所述RAN中的所述QoS简档中包括无活动定时器设置。另一种方式是明确地用信号通知所述无活动时间段,这是通过把一个新的无活动参数添加到在建立承载时用信号通知的QoS参数列表中。出于说明的目的,除非另作说明,否则在下面采用QCI实施方式。
在一种优选的但是示例的实施方式中,在一个新的协议参数中定义所确定的依业务/服务区别的无活动时间段,其中该新的协议参数指示所述QoS简档中的所期望的无活动定时器设置,并且把所述QoS的相关联QCI提供到所述无线接入网(RAN),在该处把所述QCI映射到一种无活动定时器设置。可以在所述无线接入网(RAN)中实施不同的无活动定时器,但是其他的实施方式也是可能的。
图4示出使得RAN节点关于活动状态控制实施有区别的业务/服务对待的一种示例方式。对于WCDMA来说,所述RAN节点可以被实施在所述RNC中。但是也可以在所述基站(节点B)或其他节点中实施该功能。对于每一个承载(例如PDP上下文/RAB2在图4中被强调),从一个GSN节点(其在此被显示为GGSN)用信号向所述RAN节点通知QCI。所述QCI被所述RAN节点用作一个指针,其指向由所述运营商对于每一个QCI在所述RAN中预先配置的一组无活动定时器值(每个UE活动状态一个值)。这由图4中示出的QCI到定时器的映射数据库26来说明。随后使用从所述数据库26检索的QCI寻址的无活动时间段来设置对应于所述PDP上下文2/RAB2的无活动定时器24。虽然没有示出,对于PDP上下文1/RAB1执行类似的过程,但是其中利用了不同的QCI并且可能利用了不同的QCI到定时器的映射。
对于每一个承载还有业务活动检测器20和活动状态确定实体22。所述业务活动检测器20向所述活动状态确定实体22通知其承载上的数据分组传输活动。所述无活动定时器24用信号向所述活动状态确定实体22通知为该承载设置的所述无活动时间段何时到时。如果该活动状态确定实体22在接收到来自所述无活动定时器24的到时之前检测到所述承载上的活动,则该实体利用相同的无活动时间段值重置该无活动定时器24,从而重新开始所述无活动时间段。但是如果所述活动状态确定实体22确定所述无活动定时器到时而没有在所述承载上检测到任何业务活动,则其用信号向UE活动状态控制器28(例如在所述RAN节点中示出)通知对于该承载期望把UE活动状态改变为较低活动状态。
如在背景部分中所描述的那样,对于3GPP WCDMA实例有4种UE活动状态:Cell_DCH、cell_FACH、cell_PCH和URA_PCH。所述Cell_DCH状态打算具有最多传输活动,因此应当具有最短的无活动时间段。所述cell_FACH状态打算具有比所述Cell_DCH状态更少的活动,因此具有略微更长的无活动时间段。所述cell_PCH状态打算具有比所述cell_FACH状态更少的活动,因此具有甚至更长的无活动时间段。所述URA_PCH状态打算具有比所述cell_FACH状态更少的活动,并且具有所述4种UE状态当中最长的无活动时间段。
还可以基于在适用的UE状态(例如所述cell_PCH和URA_PCH状态)下的到期的无活动时间段通过UE状态改变来触发可变睡眠模式周期(例如不连续接收(DRX)周期)。例如,在所述URA_PCH状态下的UE活动状态的降档可以触发重新配置到更长的DRX周期。
对于具有多个承载的UE连接来说,所述RAN节点基于从每一个所述承载指示的活动水平来控制所述UE活动水平。在一种非限制性示例实施方式中,从所有所述连接承载确定的最高活动水平决定所述UE连接的特定活动水平以及发送到所述UE的活动水平命令。
下面的非限制性实例说明了可以为两个业务分类分配不同的无活动时间段的一种方式。在这里的说明中所描述的概念可以被用来为在承载响应时间与UE电池耗用之间具有不同折衷的任何数目的业务或服务分类分配不同的无活动时间段。一个业务分类A与面向多事务的类型相关,对于所述面向多事务的类型应当把所述活动状态过渡设置成优化所述承载响应时间,从而增强用户体验。另一个业务分类B包括面向单一事务的活动,对于所述面向单一事务的活动应当把所述活动状态过渡设置成减少所述UE的电池消耗。该示例说明还基于诸如QCI之类的简化的QoS模型。
对于所述策略控制系统中的网络配置,所述网络运营商定义哪一类业务落入类别A以及哪一业务落入类别B。A类业务(面向多事务的类型的业务)的非限制性实例包括web业务、虚拟专用网(VPN)业务、IMS呼叫控制信令、基于蜂窝的即按即说(PoC)业务、电子邮件访问、未识别的因特网业务等等。B类业务(单一事务类型的业务)的非限制性实例包括推送式电子邮件通知、即时消息、IMS订购/通知、IMS存在业务、机器对机器通信、资费计量业务(电、水等等)、不频繁的但是周期性的监视画面等等。单一事务类型的业务的另一个例子是通常被用来保活网络地址翻译器(NAT)或防火墙中的上下文的TCP连接或其他协议的保活(keep-alive)信令。这种保活消息不指示后续动作的更高概率,因此不会促成长时间保持在所述更高活动状态下。“单一事务”类型的业务的又一个例子将是由膝上型计算机/PC的操作系统发送的各种消息,比如IP/ICMP分组。
对于每一种服务或业务类型,所述网络运营商还定义正常QoS要求。基于上述要求,所述网络运营商定义各QoS分类。每一个QoS分类不仅由其高水平QoS特性来表征,而且还由其无活动定时器设置来表征。所述网络运营商规定所述网络的总容量的大小并且配置每个QoS分类的网络节点。特别地,在所述RAN节点中,对于每个QoS分类或者每个QCI设置无活动定时器,以便匹配类别A的业务/服务或者类别B的业务/服务。
在建立每一个承载时,可以在所述承载PDP上下文建立过程中从策略控制和计费规则功能(PCRF)用信号向所述GGSN并向所述SGSN通知所述QCI。随后可以在所述RAB建立过程中用信号从所述SGSN向所述RNC通知所述QCI。利用从针对该特定QCI配置在所述RAN节点(可能是RNC,但是该节点可以是基站/节点B)中的QoS简档导出的无线承载参数来配置所述UE。虽然在图4中没有示出,但是可以采用包含QCI到无线承载参数映射的另一个数据库。
对于下行链路业务,利用所述GGSN中的分组过滤器把数据分组映射到所期望的承载/PDP上下文。利用基于针对业务分类的运营商策略所确定的所述承载的QCI在所述GGSN中配置所述承载/PDP上下文。在具有相同的QCI的相应的RAB上把所述下行链路数据分组传送到所述RNC,其中所述RAB是在所述SGSN中配置的。基于UE本地的策略或者从所述网络下载到所述UE的规则,利用上行链路分组过滤器在所述UE中把上行链路数据分组映射到具有特定QCI的所期望的承载/PDP。把上行链路分组排入队列以供在相应的RAB和无线承载(RB)上传送到所述无线接入网。
图5中的流程图示出用于所述RAN节点的非限制性示例区别的无活动监控过程。在配置对应于UE连接的无线接入承载(RAB)的过程中,把一个无活动时间段与两个(或更多个)不同类型的业务分类当中的每一个相关联(步骤S1)。在上面的示例中,所述UE连接具有两个业务分类:类别A和类别B。对于所述UE连接的每一个所述RAB监控传输活动。假设所述UE处在其中将不传送数据的较低活动状态下,检测到用于在RAB上传输的数据分组(步骤S2)将触发从所述RAN节点到所述UE的指示以便改变为传输活动状态,例如改变为Cell_DCH状态(步骤S3)。随后把对于该RAB缓冲的分组传送到所述UE(下行链路),或者从所述UE接收所述分组(上行链路)(步骤S4)。当不再通过所述RAB传送数据时,该RAN节点开始一个相关联的无活动定时器,其中该无活动定时器是利用对应于正通过所述RAB传送的传输业务类型的业务分类无活动时间段来设置的(步骤S5)。在步骤S6中判定是否还将通过所述RAB传送更多数据。如果是的话,则所述控制返回到步骤S3。如果不是的话,则判定所述相关联的无活动定时器是否已到期(步骤S7)。如果还没有到期,则所述控制返回到步骤S6。如果已到期的话,则所述RAN节点指示改变为较低UE活动水平(例如Cell_FACH、Cell_PCH或者URA_PCH)或者甚至进入深度睡眠状态(步骤S8)。此时,利用与该较低UE活动水平相关联的业务分类时间段来设置所述RAB的无活动定时器(步骤S9)。执行监控以便确定是否将在所述RAB上传送任何数据(在步骤S10中)。如果是的话,则所述控制返回到步骤S3。如果不是的话,则判定当前的无活动定时器是否已到期(步骤S11)。如果还没有到期,则所述控制返回到步骤S10。如果已到期的话,则所述控制返回到步骤S8,以便改变为甚至更低的UE活动水平。
图6示出针对采用不同的QCI x、y和z的UE连接的3个承载的一种非限制性示例实施方式,其中每一个QCI具有不同的无活动时间段。所述3个承载被显示为3个PDP上下文,其支持去往/来自处在所述移动终端侧的3个应用App1、App2和App3的一组分组流。由所述GGSN中的所述承载和过滤器控制功能来控制对应于特定QCI的承载的建立、对于下行链路在所述GGSN中配置分组过滤器(PF)以及对于上行链路在所述MT中配置分组过滤器(PF)。所述分组过滤器基于IP报头信息把输入分组映射到承载,所述IP报头信息比如是IP地址、端口号、协议ID或者区别服务代码点(DSCP)信息。
应用App1使用具有较长无活动定时器的承载,并且不使用与所述IMS网络的任何会话级别信令。App1例如可以是web浏览器类应用。可以把所述数据分组(分组流“1”)映射到不需要对于该应用控制特定分组过滤器的默认承载。
应用App2仅仅使用具有较短无活动定时器的承载。App2例如可以是推送式邮件客户端应用。App2生成两类分组流:分组流“2a”包括所述App2与所述IMS网络的代理CSCF(最终到所述IMS网络中的某一应用服务器)之间的IMS SIP信令。这些SIP消息不会触发到所述PCRF的任何信令,从而不会把动态产生的映射(策略)规则从PCRF安装到GGSN。
通过多种替换方案把所述SIP消息本身映射到合适的承载。相应地对于该承载,第一映射替换方案根据单独的IP地址+端口号来区分该SIP消息流,并且在所述MT和GGSN中配置所述上行链路和下行链路分组过滤器。第二映射替换方案在所述P-CSCF或分组检查功能(下行链路)中以及在所述终端中的App2客户端(上行链路)中利用特定的区别服务代码点(DSCP)或TOS值来标记所述特定的SIP消息流的分组,并且利用相应的DSCP值来配置所述分组过滤器(下行链路:GGSN,上行链路:MT)。所述P-CSCF或所述分组检查功能将通过解释所述SIP消息的各部分来识别所述特定的SIP消息流,比如消息类型(SIPNOTIFY(通知)或SIP MESSAGE(消息)消息)、源/目的地地址(其例如标识发出该消息的服务器)、或者服务标识符(其例如指示“即时消息传送”或“SIP推送”等等)。第三映射替换方案如上所述地在所述分组检查功能中识别所述分组流,并且随后通过所述承载和过滤器控制功能来触发对所述过滤器的配置,以便基于当前IP地址和端口号来定义各过滤器。第四映射替换方案在所述GGSN内部执行如上所述的分组检查以供直接映射到承载。
应用App2还生成另一个分组流“2b”,其可以表示用于把邮件检索到P-IMAP调度器/IMAP服务器的TCP连接。同样地,关于如何把所述分组流映射到所期望的承载有不同的示例替换方案。第一映射替换方案是把所述分组过滤器配置成把去往/来自所述IMAP服务器的IP地址的分组映射到所期望的承载。在第二映射替换方案中,所述IMAP服务器利用一个DSCP值来标记下行链路方向上的分组,并且所述推送式邮件客户端利用一个DSCP值来标记上行链路分组。所述分组过滤器被配置成把具有该DSCP的分组映射到所期望的承载。在第三映射替换方案中,所述GGSN内部或外部的分组检查功能把所述分组流识别为将用短的无活动定时器来对待的分组。所述分组检查功能从而利用一个短无活动定时器DSCP值(下行链路)来标记所述分组,或者替换地通过所述GGSN中的所述承载和过滤器控制功能来触发所述分组过滤器的更新,从而把当前的IP分组流映射到所期望的承载。
应用App3对于SIP会话建立信令(分组流“3a”)使用一个具有长无活动定时器的承载,并且对于利用所述SIP会话建立信令所建立的媒体流(分组流“3b”)使用另一个承载。这可以表示多媒体电话应用。所述SIP会话信令(分组流“3a”)被映射到一个具有长无活动定时器的承载,这是默认地实现的或者是通过以下方式实现的:利用一个DSCP值标记分组并且利用该值来定义分组过滤器、在所述应用客户端与所述终端中的MT之间配置这种映射(上行链路)、或者基于所述GGSN中的所述P-CSCF IP地址来定义过滤器(下行链路)。从而可以按照这种方式把对应于同一个IMS移动终端的不同SIP消息映射到不同的承载。
把所述媒体流(分组流“3b”)映射到通过所述网络中的策略控制功能优化的承载,以便载送实际的媒体分组(例如语音分组)。所述P-CSCF把从所述SIP信令中导出的会话服务信息转发到所述PCRF。该信息例如包括服务标识(“语音电话”)和所述媒体流的定义(例如语音比特率、上行链路/下行链路IP地址、以及端口号)。基于该会话服务信息以及基于运营商配置的映射规则,所述PCRF把所述媒体流映射到合适的QoS分类(QCI),并且在动态策略规则下用信号向所述GGSN通知该映射。所述GGSN随后产生对应于具有所请求的QCI的承载的分组过滤器,并且在所述GGSN中安装下行链路过滤器以及在所述MT中安装上行链路过滤器。当所述媒体流分组到达时,利用上述分组过滤器将其映射到所期望的承载。与用于媒体流的承载相对应的无活动定时器可以相当短,从而允许所述控制信令确定何时切换活动状态。然而,对于某些媒体流类型可能有理由允许更长的无活动定时器,例如如果仅仅把视频流送暂停一小段时间,则可以在一段时间内把所述活动状态保持为高以便允许快速恢复。
在图6中,分别通过所述MT和所述GGSN在分组流2a/3a中载送App2/App3与所述P-CSCF之间的SIP信令。
对于上面描述的所有应用,可以(例如利用图7的建立序列)预先建立具有所期望的QCI的承载。可选择地,所述GGSN可以利用下面描述的图9中所示的信令序列来动态地建立所述承载。
可以对于上行链路和下行链路分组传输不同地设置无活动定时器。可选择地,如果不可能控制上行链路分组到正确的承载和无活动定时器的映射,则可以通过总是把对应于上行链路业务的无活动定时器设置得相当短而仅仅在下行链路业务上区别所述无活动定时器。在这种情况下,对应于下行链路业务的无活动定时器可以短也可以长。如果有针对向下切换到较低活动状态的请求,则所述切换优选地仅仅在所述上行链路和下行链路无活动定时器都已到期时才发生。
可以对于使用相同应用的不同用户不同地选择所述QCI,以便对于例如可能正在使用不同类型的UE的所述不同用户区分无活动定时器。如果所述网络(例如PCRF)知道所述移动终端是从电池功率切换到AC功率还是从AC功率切换到电池功率,则上述QCI选择可以改变。
还可以根据所传送的数据量动态地改变被用来递送特定服务的无活动定时器。一个例子是,如果递送具有预定义长度的视频剪辑,则在递送期间把所述无活动定时器设置得更长,以便允许用户暂停播放但是却可以接收到快速的播放恢复。一旦完成了所述视频剪辑,就可以例如通过以下措施把所述无活动定时器切换到一个较短值:在递送期间把分组流从一个QCI重新映射到另一个QCI,在递送期间修改承载的QCI,或者在递送了所述视频剪辑之后释放所述承载从而强制释放所述无活动定时器。
还可以基于被映射到某一承载的业务的所测量的统计量来调节为该承载所选择的QCI的无活动定时器。这种可调节的情况可以示例地应用于仅仅使用默认承载的UE终端。示例统计量可以包括相关属性,比如以业务活动为条件在特定时间内发生附加业务的概率。可以在所述IP网络连接期间收集所述统计量,或者可以对于每一个用户存储所述统计量。基于所收集的统计量,在建立所述默认的承载时选择对应于合适的无活动定时器的QCI,或者在所述IP网络连接期间动态地修改所述承载的QCI。
图7示出建立与UE的IP连接的一个非限制性实例。所述UE首先开始建立第一承载(PDP上下文),这意味着为该UE分配IP地址。所述网络为该第一承载分配默认的QoS分类(QCI)。基于所述PCRF中的运营商提供的规则,从一开始就建立具有另一个QCI的特定承载。该另一个QCI对应于所述RAN中的另一个无活动定时器。在正常情况下,所述默认QCI对应于一个长定时器,而该另一个QCI对应于一个短定时器。基于建立第二承载的决定,所述PCRF向所述GGSN发送消息(安装策略规则),从而指示将为所述新的承载预先建立的所期望的QCI。此外还包括在所述UE中安装对应于该承载的上行链路分组过滤器(UL业务流模板),其在此时为空、基于静态IP地址、或者基于一个DSCP值。所述GGSN随后继续下面在图9中详细描述的序列。当完成时,所述GGSN利用消息向所述PCRF指示完成。该信令是用虚线箭头示出的,这是因为预先建立所述第二承载是可选的—替换地可以在所述网络检测出需要在特定QCI上传送数据时建立该承载。最后,所述UE中的所述IMS客户端向所述IMS网络进行登记。
图8示出一个详细的信令图,其示出用来在所述UE与对应于图6的App3的远程UE之间建立多媒体呼叫的会话信令。所述始发IMS客户端应用利用到所述IMS核心A的SIP INVITE(邀请)来启动所述会话建立。所述IMS核心(P-CSCF)把相关的会话服务信息转发到所述PCRF,该PCRF把所述媒体流映射到某一QCI并且在所述GGSN中安装相应的策略规则。所述QCI确定对于如在所述RAN中配置的媒体流承载所用的无活动定时器。所述PCRF可以例如根据媒体流类型或用户数据选择不同的QCI以便实现不同的无活动定时器。所述GGSN评估是否已经存在具有该QCI的承载(在该例中没有)。所述GGSN触发建立所述新的承载,在图9中示出关于这方面的一个详细的例子。在终接侧发生相应的动作。一旦终接用户应答所述呼叫,则知道了对应于到该用户的方向上的媒体流的IP+端口信息,并且相应地更新所述分组过滤器(终接侧的下行链路过滤器和始发侧的上行链路过滤器)。
图9示出用于从所述网络建立承载的非限制性示例信令序列的细节。通过来自所述PCRF的针对建立具有特定特性的新承载的请求或者通过检测到根据所述GGSN中的预定义规则应当接收这些特性的(上行链路或下行链路)业务来触发该GGSN开始上述序列。前一种情况包括在图7中示出的例子,其中已经在连接到所述IP网络时建立了所述承载。后一种情况包括具有以下内容的分组:特定IP地址和端口号集合、所述IP报头中的特定区别服务代码点(DSCP)值、通过分组检查功能揭示的特定更高层协议特性、或者以上各项的任何组合。
一旦被触发,所述GGSN就通过所述SGSN向所述移动终端(MT)发送请求,其被称作网络请求辅助PDP上下文激活(NSRPCA)。该请求包括一个上行链路分组过滤器(即所述上行链路(UL)业务流模板(TFT)),其可以为空并且稍后被填充,或者该过滤器可以基于IP地址、IP端口号、IP协议ID、IP DSCP值、或者其任何组合。所述上行链路过滤器被存储在与将要建立的承载相关联的MT中。把QoS’参数和下行链路(DL)TFT包括在通过由所述MT发送所述NRSPCA而触发的所述辅助PDP上下文激活中。
所述辅助PDP上下文激活被发送到所述SGSN,其根据已知的过程利用产生PDP上下文请求消息把所述请求转发到所述GGSN。该GGSN利用所述QoS’和/或DL TFT把该消息与较早的NRSPCA相关联。所述GGSN现在可以响应于所述SGSN而改变所述QoS(例如如果所述MT已改变了所请求的QoS’的话),并且可以包括所述最终的QoS以作为QCI值。所述SGSN随后从所述无线接入网(RAN)请求包括所述QCI值的无线接入承载。所述RAN执行与所述MT的必要的无线承载信令并且对所述SGSN做出响应,其通过到所述MT和所述GGSN的信令完成所述建立。
图10示出用于把推送式电子邮件递送到移动终端的非限制性示例信令序列的细节。该序列是由新的电子邮件到达所述IMAP(邮件)服务器而触发的,该IMAP服务器还充当推送式IMAP(P-IMAP)调度器。该P-IMAP调度器首先利用(在该例中)SIP MESSAGE消息或SIPNOTIFY消息向所述移动终端中的所述推送式IMAP客户端通知关于新邮件的到达。一种替换方案(未示出)是通过短消息信令(SMS)发送所述通知。作为IMS SIP信令,所述SIP通知消息通过所述代理CSCF被路由,该代理CSCF标记去往所述GGSN的分组,以便与用来建立呼叫的IMS SIP信令做出区分。所述“标记”在该例中是一个DSCP值。所述GGSN从而把所述分组映射到具有短无活动定时器的承载,这被显示为图10中的消息上的圆圈。
所述通知触发所述P-IMAP客户端打开TCP连接、登入所述IMAP服务器/P-IMAP服务器、选择收件箱、检索邮件列表、检索新邮件的报头、检索新邮件的完全实体、登出所述服务器、以及关闭所述TCP连接。所有这些消息都被所述GGSN(下行链路)和所述MT(上行链路)映射到具有短无活动时间段的承载。在下行链路中,通过以下措施来确保该映射:由所述P-IMAP调度器/IMAP服务器进行分组标记(比如DSCP),把所述GGSN配置成在所述P-IMAP调度器/IMAP服务器的IP地址上进行过滤,或者由所述GGSN内部或外部的分组检查功能把分组识别为推送式邮件分组。在上行链路中,可以通过以下措施进行所述映射:把所述P-IMAP客户端应用配置成在其分组上设置特定的DSCP值,以及确保把所述上行链路分组过滤器(UL TFT)定义成使得具有该DSCP值的分组被映射到特定承载。可选择地,可能无法关于无活动定时器来区分上行链路分组,并且对于上行链路方向利用短的无活动定时器配置所述RAN。在这种情况下,仅仅由下行链路活动或无活动来触发状态过渡。虽然用来把电子邮件推送到所述移动终端的信令序列包括多条消息,但是该信令序列作为由单一事件(新邮件到达)触发的一批消息而被执行。
图11示出移动终端中的3个应用的使用情况。在所述GGSN(下行链路)和所述MT(上行链路)中进行的映射中,图中的圆圈表明分组被映射到具有短无活动定时器的承载,而矩形表明分组被映射到具有长无活动定时器的承载。最初,所述移动终端处于低活动状态下。首先,新邮件到达,从而根据图10触发推送该邮件。这样会把所述移动终端的连接切换到高活动状态,正如图中的粗垂直线所指示的那样。当所述邮件推送被完成时,所述连接很快被切换到低活动状态(推送式邮件使用具有短无活动定时器的承载),这由所述粗垂直线的终止指示。
接下来向IMS存在服务器通知关于所述UE用户的朋友的状态改变(例如该朋友现在在线)。所述IMS存在服务器从而产生SIPNOTIFY消息,以便更新所述终端的客户端中的存在信息。通过所述代理CSCF来发送该消息。至于所述推送式邮件通知,携带该SIP消息的分组被所述P-CSCF标记为将由所述GGSN映射到所述具有短无活动定时器的承载。对该SIP NOTIFY消息的传送还可以触发来自所述存在客户端的中间响应,这在图中没有示出。所述移动终端连接被切换到高活动状态以便传送所述(多条)SIP消息,但是其在完成所述事务之后不久就回到低活动状态。
接下来,用户通过“点击”所述浏览器中的链接(或输入地址)来启动web浏览会话。这样会触发到所述web服务器的HTTP GET消息以及返回的响应。(没有示出在HTTP信令之前潜在地需要的其他消息,比如TCP连接建立和DNS查询。)对于每一次鼠标点击(或者其他用户交互),可以有多次HTTP消息交换以便获得web页面的不同对象。在图11中把所述HTTP消息交换显示为一个事务以便简化说明。所述HTTP消息被映射到具有利用矩形示出的长无活动定时器的承载。在该例中对于上述操作不需要特殊的分组过滤器,这是因为HTTP消息被映射到利用所述长的无活动定时器配置的默认承载。因此,对HTTP分组的传送把所述连接切换到高活动状态。对于所述用户的第一次点击,上述切换可能招致响应时间中的额外延迟。但是随后所述连接将在用户阅读所述web页面的同时保持在该状态下,从而对于该用户的后续点击,所述连接已经处在高活动状态下,并且响应时间更短。
在所述连接由于检测到所述具有长无活动定时器的承载上的业务而处在高活动状态下的同时,可能会有在所述具有短无活动定时器的承载上发送的业务(其被显示为另一个存在更新)。这不会改变所述连接的状态。只有在更长时间段内没有web浏览数据的情况下,所述连接才被切换回到低活动状态。最后示出另一个存在更新,其后把所述连接很快切换回到低活动状态。
对于上面的WCDMA UTRAN实例,对于业务和无活动时间段的区分是在每个承载级别上执行的,其中所述承载包括所述PDP上下文和所述RAB。但是可以按照其他方式以及在其他类型的网络中应用上面描述的原理。例如,另一种无线接入网可能不在承载级别上实施无活动时间段。代之以,可以使用对QoS分类(或者“业务分类”)的每分组指示。在这种情况下,可以对于每个QoS分类执行所述无活动定时器设置、业务活动监控、以及活动水平确定。随后可以按照与先前描述的承载类似的方式对待每一个QoS分类。其他变型也被设想到。
在上面的非限制性实例中,通过识别出特定的应用来确定业务的类型,其被归类为所述各种业务类型的其中之一。在另一非限制性示例应用中,由所述网络通过测量与某一用户相关的业务的统计量来检测所述业务类型。所述统计量可以包括以先前的业务活动为条件在某一时间段内发生后续的业务活动的概率。所述统计量可以被存储在所述CN中的数据库内,例如存储在所述PCRF或用户存储库中。该方法还适用于其中在一个通用承载上载送混合应用业务的情况。如果对于一个用户来说所述业务混合由“单一事务”类型业务主导,则把对应于该通用承载的所述QCI(从而间接地是所述无活动定时器)设置为相对较短的值。如果对于另一个用户来说所述业务混合由“多事务”类型业务主导,则把对应于该通用承载的所述QCI(从而间接地是所述无活动定时器)设置为相对较长的值。
虽然详细示出及描述了各种实施例,但是权利要求书并不限于任何特定实施例或实例。上面的描述不应被视为暗示任何特定元件、步骤、范围或功能的重要性使得必须将其包括在权利要求书的范围内。要求专利权的主题的范围仅由权利要求书来限定。法律保护的范围由在所允许的权利要求书及其等效表述中所陈述的措辞来限定。除非使用“用于...的装置”这样的措辞,否则权利要求不打算援引35USC§112的第6段。
Claims (7)
1.一种用在其中存在与移动终端(MS/UE)的连接的移动无线通信中的方法,该方法包括以下步骤:
接收与所述连接相关联的业务类型的指示(QCI)以及基于与所述连接相关联的业务类型所确定的多个不同的无活动时间段的其中之一;
确定所述其中一个无活动时间段是否已到期而没有在所述连接上检测到所述业务类型的活动(20,22,24),其中所述移动终端操作在多个移动状态当中的第一移动状态下;以及
如果所述其中一个无活动时间段已到期(28)而没有在所述连接上检测到所述业务类型的活动(20,22,24),则发送信息以用于把所述移动终端的所述第一移动状态改变为较低功率消耗移动状态。
2.权利要求1所述的方法,其中,根据以下各项当中的一项或多项来定义每一个移动状态:被分配给所述连接的无线资源水平、所述移动终端的功率消耗水平、或者与过渡到其中可能发生数据传输的移动状态相关联的延迟。
3.权利要求2所述的方法,其中,当对于所述连接建立了多个承载时,所述方法还包括:
基于与每一个承载相关联的业务类型来为所述连接中的每一个承载建立所述多个不同的无活动时间段的其中之一(S1);以及
如果为所述连接所建立的所有承载的相关联的无活动定时器都已到期,则把所述第一移动状态改变为较低功率状态(S8)。
4.权利要求1所述的方法,其中,当对于所述连接建立了多个服务质量时,所述方法还包括:
为每一个服务质量建立所述多个不同的无活动时间段的其中之一(S1);以及
如果为所述连接所建立的所有服务质量的相关联的无活动定时器都已到期,则把所述第一移动状态改变为较低功率状态(S8)。
5.一种用在其中存在与移动终端(MT/UE)的连接的移动无线通信中的装置,包括:
用于接收与所述连接相关联的业务类型的指示(QCI)以及基于与所述连接相关联的业务类型所确定的多个不同的无活动时间段的其中之一的装置,
用于确定所述其中一个无活动时间段是否已到期而没有在所述连接上检测到所述业务类型的活动(20,22,24)的装置,其中所述移动终端操作在多个移动状态当中的第一移动状态下,以及
用于在所述其中一个无活动时间段已到期(28)而没有在所述连接上检测到所述业务类型的活动(20,22,24)的情况下发送信息以用于把所述移动终端的所述第一移动状态改变为较低功率消耗移动状态的装置。
6.权利要求5所述的装置,还包括:
用于基于与每一个承载相关联的业务类型(QCI)来为所述连接中的每一个承载建立所述多个不同的无活动时间段(24)的其中之一的装置;以及
用于在为所述连接所建立的所有承载的相关联的无活动定时器都已到期的情况下向所述移动终端发送信息以指示从所述第一移动状态改变为较低功率状态(28)的装置。
7.权利要求5所述的装置,还包括:
用于为每一个服务质量建立所述多个不同的无活动时间段(24)的其中之一的装置;以及
用于在为所述连接所建立的所有服务质量的相关联的无活动定时器都已到期的情况下,向所述移动终端发送信息(28)以指示从所述第一移动状态改变为较低功率状态的装置。
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