CN104756581A - 针对lte-a网络的调度请求和随机接入的使用 - Google Patents

针对lte-a网络的调度请求和随机接入的使用 Download PDF

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CN104756581A
CN104756581A CN201380056115.6A CN201380056115A CN104756581A CN 104756581 A CN104756581 A CN 104756581A CN 201380056115 A CN201380056115 A CN 201380056115A CN 104756581 A CN104756581 A CN 104756581A
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enb
random access
access procedure
scheduling request
periodic scheduling
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CN104756581B (zh
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艾里·T·科克
玛鲁蒂·古普塔
萨蒂什·C·扎
拉蒂·凡尼瑟姆比
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Apple Inc
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Intel Corp
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Abstract

用于在无线网络中进行通信的方法和装置，这些方法和装置包括用来辅助针对UE的周期性调度请求和随机接入过程的同时使用以从eNB请求上行链路资源的机制。

Description

针对LTE-A网络的调度请求和随机接入的使用
相关申请的交叉引用
本申请要求于2012年12月3日提交的、题为“增强的无线通信系统和技术”的美国临时专利申请No.61/732,851的优先权，该申请的全部公开通过引用被合并于此。
技术领域
本文所描述的实施例总体涉及无线通信领域，并且更具体地，涉及用于在无线通信系统中请求上行链路资源的方法和装置。
背景技术
能够尽可能高效并且廉价地向固定订户和移动订户提供电信服务变得更加重要。而且，对移动应用的增加使用已经导致对开发能够以较高速率递送大量数据的无线系统的大量关注。
在无线网络中进行操作的用户设备的电池寿命成为关心的问题，并且(例如，当待机时)针对用户设备已经建议了低功率操作模式。然而，当实现这样的低功率模式时，限制对用户体验的任何消极影响很重要。
附图说明
参照附图，本发明的实施例的方面、特征以及优势将从本发明的如下描述中变得显而易见，其中，相似的标号表示相似的元件，并且其中：
图1是根据各个实施例的示例无线网络的框图；
图2是根据各个实施例示出用户设备中的示例性方法的时间线；
图3是根据各个实施例示出用户设备中的示例性方法的时间线；
图4是根据各个实施例示出用户设备中的示例性方法的另一时间线；
图5是根据各个实施例示出用户设备与eNB之间的通信的顺序图；
图6是根据各个实施例示出用户设备中的示例性方法的框图；
图7是根据各个实施例示出示例系统的框图；
图8是根据本文所公开的创造性方法中的一个或多个，示出被配置以用于在无线网络中进行通信的示例无线装置的框图。
具体实施方式
本公开的说明性实施例包括，而非限于，用于在无线通信网络中选择应答信号时序的方法、系统和装置。
将使用本领域技术人员通用的术语来对说明性实施例的各个方面进行描述，以将其工作的实质传达给本领域的其他技术人员。然而，可以使用所描述的各方面的一部分来实施一些替代实施例，这对本领域的技术人员而言是显而易见的。出于解释的目的，提出了具体的数字、材料和配置，以提供对说明性实施例的透彻的理解。然而，可以无需具体细节来实施替代实施例，这对本领域技术人员而言是显而易见的。在其他实例中，为了不模糊说明性实施例，忽略或简化了众所周知的特征。
另外，各个操作将被描述为多个离散的操作，这样的方式对于理解说明性实施例是最有帮助的；然而，不将描述的顺序构建为隐含这些操作必须依赖于顺序。具体地，无需以呈现的顺序来执行这些操作。
短语“在一个实施例中”被重复使用。该短语一般不指代相同的实施例；然而，其可以指代相同的实施例。除非文本中另有所指，否则术语“包含”、“具有”以及“包括”是同义的。短语“A/B”意思是“A或B”。短语“A和/或B”意思是“(A)、(B)、或(A和B)”。短语“A、B和C中的至少一个”意思是“(A)、(B)、(C)、(A和B)、(A和C)、(B和C)或(A、B和C)”。短语“(A)B”意思是“(B)或(A B)”，即，A是可选的。
尽管本文已经示出并描述了具体的实施例，但本领域技术人员应当理解，在不背离本公开的实施例的范围的情况下，多种替代实现方式和/或等同实现方式可以代替所示和所描述的具体实施例。该申请旨在覆盖本文所讨论的实施例的任何改编或变体。因此，显然旨在于，本公开的实施例只被权利要求及其等同来限制。
如本文所使用的，术语“模块”可以指代专用集成电路(ASIC)、电子电路、运行一个或多个软件或固件指令和/或程序的处理器(共享、专用或群组)和/或存储器(共享、专用或群组)、组合逻辑电路和/或提供所描述的功能的其他合适的部件，可以是上述这些的一部分、或包括上述这些。
图1根据各个实施例示意性地示出了无线通信网络100。无线通信网络100(下文称为“网络100”)可以是第三代合作伙伴项目(3GPP)长期演进(LTE)或增强的长期演进(long-term evolution-advanced，LTE-A)网络(例如，演进的通用移动电信系统(UMTS)陆地无线电接入网络(E-UTRAN))。
网络100可以包括基站(例如，演进的节点基站(eNB)104)，该基站被配置为与一个或多个移动设备或终端(例如，用户设备(UE)108)进行无线通信。在各个实施例中，eNB 104可以是固定站(例如，固定节点)或者是移动站/节点。
eNB 104可以包括接收机模块120，利用该接收机模块120经由一个或多个天线130从UE 108接收信号。eNB 104可以包括发送机模块124，利用该发送机模块124经由一个或多个天线130将信号发送至UE 108。eNB 104还可以包括与接收机模块120和发送机模块124进行通信的处理器模块128，该处理器模块128被配置为对由信号所传输的信息进行编码和解码。
在各个实施例中，UE 108和/或eNB 104可以包括用来实现多输入多输出(MIMO)传输系统的多个天线156、130，这可以以各种MIMO模式(包括单用户MIMO(SU-MIMO)、多用户MIMO(MU-MIMO)、闭环MIMO、开环MIMO或智能天线处理的变体)进行操作。
在各个实施例中，UE 108包括发送机模块148和接收机模块144，其中，发送机模块148用于将信号发送至eNB 104，接收机模块144用于从eNB 104接收信号。UE 108还包括处理器模块152，该处理器模块152耦合于接收机模块144与发送机模块148之间，并且该处理器模块152包括通信模块154，该通信模块154用来对由信号所传输的信息进行编码和解码。处理器模块152还包括RACH控制模块158，该RACH控制模块158根据下面所描述的实施例，用来对由UE 108执行的随机接入过程进行选择性控制。
尽管参照LTE网络对本发明的实施例进行描述，但一些实施例可以用于其他类型的无线接入网络。
可以在各种应用(包括无线电系统的发送机和接收机)中使用下面的创造性实施例，尽管本发明不限于该方面。具体地包括在本发明的范围内的无线电系统包括，但不限于，网络接口卡(NIC)、网络适配器、固定客户设备或移动客户设备、中继、基站、毫微微蜂窝、网关、网桥、集线器、路由器、接入点、或其他网络设备。而且，本发明的范围内的无线电系统可以被实现于蜂窝无线电电话系统、卫星系统、双向无线电系统以及包括这样的无线电系统的计算设备(包括个人计算机(PC)、平板电脑及相关外设、个人数字助理(PDA)、个人计算配件、手持通信设备、以及本质上可能相关的并且创造性实施例的原理可以适于的所有系统)。
为了请求上行链路资源，用户设备(UE)通常使用调度请求(SR)。在3GPP TS 36.213中对调度请求(SR)进行了解释。UE由较高层进行配置，以在物理上行链路控制信道(PUCCH)资源上发送调度请求(SR)。在3GPP TS 36.213的表10.1.5-1中通过由较高层给出的参数SR配置索引ISR对针对SR传输周期SRPERIODICITY和SR子帧偏移NOFFSET，SR的SR配置进行了定义。
表1：来自TS 36.213的SR周期
替代地，可以在任意时间使用随机接入过程来请求上行链路资源。在LTE系统中，UE执行基于竞争的随机接入(RA)过程来获得对上行链路资源的接入。出于该目的，UE使用具体的上行链路信道，该具体的上行链路信道被称为物理随机接入信道(PRACH)。PRACH是公共传输信道，该信道用来在终端上电之后将终端注册到网络、在从一个位置区域移动到另一位置区域之后执行位置更新、或通过从UE建立连接来发起呼叫。如3GPP TS 36.300部分10和3GPP TS 36.321部分5中所描述的，基于竞争的RA过程包括四个步骤。每个UE随机地选取前导签名(preamblesignature)，并且使用PRACH将其发送，随后来自eNB的随机接入响应为UE提供了上行链路分配资源来传输上行链路数据分组。
然而，如果UE已被分配以周期性SR，则网络不允许由用户设备使用随机接入过程。具体地，对由UE发起随机接入过程的任何尝试会导致任何待定的SR被网络取消。
对于相对较短的调度请求周期(例如达到80ms)，对于被强制来等待下一周期调度请求的新的上行链路分组没有显著的延迟问题。平均地，可以预期延迟大约为40ms，这不会显著地影响用户体验。
然而，每80ms或更短时间为用户设备指派调度请求分配可能在上行链路控制信道上带来问题。具体地，在背景流量的情形中，由于UE的低活动性，许多SR将未被使用，从而频繁的调度请求可能成为低效利用的网络资源。为解决该低效，已经建议提供扩展的SR周期，例如，100ms、200ms、400ms，等等。然而，这样的扩展SR周期可能在向网络传输新的上行链路数据分组方面导致显著的延迟。
根据实施例，当UE被配置为使用扩展SR周期(例如，大于80ms的周期)时，UE能够在物理随机接入信道(PRACH)上使用随机接入过程来请求上行链路资源，而无需取消周期性SR。因此，UE不被强制等待直到下一调度请求为止，而是能够在上行链路数据分组准备好传输时便使用RA过程开始请求资源。
通过允许UE同时使用SR和RA过程二者，在对于新的上行链路分组不会显著增加延迟的情况下，可以使用SR周期的较高值(例如，100ms、200ms、400ms、600ms、1000ms、2560ms)。表2中示出上面的表具有新的SR配置的示例更新版本。可以使用诸如1s和2s之类的很长的周期，尤其对于机器类型通信(MTC)设备，以允许在不会显著影响网络性能的情况下将较大数目的MTC设备连接到网络。
表2：新的SR周期表配置的示例变化
根据一些实施例，如果设备通过传输低功率消耗(优化的功率)的功率偏好指示(PPI)信息要素将其以低功率模式进行操作通知给所连接的eNB，则UE可以一起使用SR和RA。
根据实施例，当UE以断续接收(DRX)模式进行操作并且UE的DRX循环超过某一长度(例如，如果长DRX循环或短DRX循环值大于500ms)时，允许UE一起使用SR和RA。
因此，当在主小区上发起随机接入过程时，不是取消所有的待定SR，而是当用户处于低功率模式(即，PPI≠0)或者实现长DRX循环时，将允许待定SR。
图2示出了针对期望被分配以上行链路资源的UE的周期性SR202a、SR 202b之间的时间线200。在图2所示的示例中，SR周期是相对较长的600ms，因此如果要求UE在被分配以上行链路资源之前等待直到下一周期性SR分配202b为止，可能会经历显著的延迟。根据实施例，UE通过发送RACH前导传输204开始RA过程。RA过程需要某一时间段(例如，100ms)，直到在完成RA过程206时UE接收到上行链路资源分配为止。在一些实施例中，一旦已经经由RA过程对上行链路资源进行了分配，则可以取消下一周期性SR，而非全部周期性SR。
在图3所示的时间线300中，由于UE的SR分配302b还有若干毫秒才到期，UE便开始RA过程304。然而，UE不能够在下一SR分配302b可用之前完成RA过程306。因此，UE现在具有用于发送SR的两个上行链路分配而不是一个。这导致不必要的上行链路资源的浪费，因为已使用RA和SR二者来请求上行链路资源。
根据实施例，可以由图4所示的安排通过使用RA阻塞计时器来避免该问题。RA阻塞计时器将由eNB提供给所连接的能够支持同时使用SR和RA的UE。当eNB能够实现较长的SR周期(例如，600ms)时，其还将使得UE能够使用RA过程，并且提供RA阻塞计时器值。仅当SR周期大于预定值(例如，500ms)时触发RA阻塞计时器。使用所提供的RA阻塞计时器值，如果直到下一SR分配402b的时间小于由RA阻塞计时器值定义的RA阻塞周期410，则UE将不针对新的上行链路数据分组发起RA过程。
因此，在图4所示的时间线400中，在SR分配402a、402b之间的时间段，UE确定其具有要被发送的上行链路分组。然而，由于使用RA过程来请求上行链路资源的RACH传输406将在RA阻塞周期410期间发生，则RA过程被禁止，并且UE等待直到下一SR分配402b为止。
eNB可以根据RACH上的负载和所估计的RA过程的成功时间来对RA阻塞计时器值进行适应性地更改。如果在RA阻塞计时器运行的同时任何上行链路分组到来，则UE将不会发起RA过程。图5示出了RA阻止计时器的信令。可以将该信令包括为RRC连接重新配置(RRCConnectionReconfiguration)消息的一部分，该RRC连接重新配置消息被用来将功率优化配置发送给UE。
图6根据实施例示出了由UE 108执行的方法600。根据方法600，UE108向eNB配置周期性调度请求(602)。在调度请求分配之间，在UE处接收要在上行链路信道上发送的新的分组(604)。UE 108然后确定(606)到下一周期性调度请求的时间是否大于由UE从eNB 104接收到的RA阻塞计时器，如果是，则UE发起RA过程(608)来请求上行链路分配。否则，UE等待下一调度SR分配以请求用来发送上行链路分组的上行链路资源。
本文所描述的eNB 104和UE 108可以被实现于使用任意合适的硬件和/或软件按照需要进行配置的系统中。图7针对一个实施例示出了示例系统700，该示例系统700包括一个或多个处理器740、耦合于(一个或多个)处理器740中的至少一个处理器的系统控制逻辑720、耦合于系统控制逻辑720的系统存储器710、耦合于系统控制逻辑720的非易失性存储器(NVM)/存储设备730、以及耦合于系统控制逻辑720的网络接口760。系统控制逻辑720还可以被耦合于输入/输出设备750。
(一个或多个)处理器740可以包括一个或多个单核处理器或多核处理器。(一个或多个)处理器740可以包括通用处理器和专用处理器(例如，图形处理器、应用处理器、基带处理器，等等)的任意组合。处理器740可操作来使用合适的指令或程序(即，通过使用处理器或者其他逻辑、指令进行操作)执行上述方法。这些指令可以作为上行链路资源请求逻辑系统存储器部分715被存储于存储器710中，或者附加地或替代地，这些指令可以作为上行链路资源请求逻辑NVM指令部分735被存储于(NVM)/存储设备730中。
(一个或多个)处理器740可以被配置为根据各个实施例来运行图2-图6的实施例。在系统700实现eNB 104的实施例中，(一个或多个)处理器740可以被配置为向UE 108发送RA阻塞计时器值和/或使用RA过程和SR过程二者来请求上行链路资源的指示。
针对一个实施例的系统控制逻辑720可以包括用来向(一个或多个)处理器740中的至少一个和/或与系统控制逻辑720进行通信的任意合适的设备或部件提供任何合适的接口的任意合适的接口控制器。
针对一个实施例的系统控制逻辑720可以包括用来向系统存储器710提供接口的一个或多个存储器控制器(未示出)。系统存储器710可以被用于例如针对系统700来加载和存储数据和/或指令。针对一个实施例的系统存储器710可以包括任意合适的易失性存储器，例如，合适的动态随机存取存储器(DRAM)。
NVM/存储设备730可以包括例如用来存储数据和/或指令的一个或多个有形的非暂态计算机可读介质。NVM/存储设备730可以包括任意合适的非易失性存储器(例如，闪存)和/或可以包括(一个或多个)任意合适的非易失性存储设备(例如，一个或多个硬盘驱动(HDD)、一个或多个压缩盘(CD)驱动、和/或一个或多个数字通用盘(DVD)驱动)。
NVM/存储设备730可以包括物理上为设备的一部分的存储资源，其中，系统700被安装在该设备上或系统700可以由该设备访问但不一定是该设备的一部分。例如，NVM/存储设备730可以经由网络接口760通过网络来访问。
具体地，系统存储器710和NVM/存储设备730可以分别包括例如上行链路资源请求逻辑指令部分715和735的暂时副本和永久副本。指令部分715和735可以包括指令，当这些指令由(一个或多个)处理器740中的至少一个运行时使得系统700实现本文所描述的方法600或任意其他实施例的(一个或多个)方法。在一些实施例中，指令部分715和735、或其硬件部分、固件部分、和/或软件部分可以附加地/替代地位于系统控制逻辑720、网络接口760、和/或(一个或多个)处理器740中。
网络接口760可以具有收发机模块765，以向系统700提供用来通过一个或多个网络(例如，无线通信网络)进行通信和/或与任意其他合适的设备进行通信的无线电接口。在各个实施例中，收发机765可以与系统700的其他部件相集成。例如，收发机765可以包括(一个或多个)处理器740中的处理器、系统存储器710的存储器以及NVM/存储设备730的NVM/存储设备。网络接口760可以包括任意合适的硬件和/或固件。网络接口760可以在操作上被耦合于多个天线，以提供多输入、多输出无线电接口。针对一个实施例的网络接口760例如可以包括网络适配器、无线网络适配器、电话调制解调器和/或无线调制解调器。
针对一个实施例，可以将(一个或多个)处理器740中的至少一个处理器与针对系统控制逻辑720的一个或多个控制器的逻辑封装在一起。对于一个实施例，可以将(一个或多个)处理器740中的至少一个处理器与针对系统控制逻辑720的一个或多个控制器的逻辑封装在一起，以形成系统级封装(SiP)。对于一个实施例，可以将(一个或多个)处理器740中的至少一个处理器与针对系统控制逻辑720的一个或多个控制器的逻辑集成在同一管芯(die)上。对于一个实施例，可以将(一个或多个)处理器740中的至少一个处理器集成于与针对系统控制逻辑720的一个或多个控制器的逻辑相同的管芯上，以形成片上系统(SoC)。
在各个实施例中，I/O设备750可以包括用户接口、外设部件接口和/或传感器，其中，用户接口被设计为使得用户与系统700能够进行交互，外设部件接口被设计为使得外设部件与系统700能够进行交互，传感器被设计为确定与系统700相关的位置信息和/或环境状况。
图8示出了系统700以移动设备800的具体形式实现UE 108的实施例。
在各个实施例中，用户接口可以包括，但不限于，显示器840(例如，液晶显示器、触屏显示器，等等)、扬声器830、麦克风890、一个或多个照相机880(例如，静止照相机和/或视频照相机)、闪光灯(例如，发光二极管)和键盘870。
在各个实施例中，外设部件接口可以包括，但不限于，非易失性存储器端口、音频插座、以及电源接口。
在各个实施例中，传感器可以包括，但不限于，陀螺仪传感器、加速计、距离传感器、环境光传感器、以及定位单元。定位单元也可以是网络接口760的一部分，或者与网络接口760进行交互，以与定位网络(例如，全球定位系统(GPS)卫星)的部件进行通信。
在各个实施例中，系统700可以是移动计算设备(例如，但不限于，膝上型计算设备、平板式计算设备、上网本、移动电话，等等)。在各个实施例中，系统700可以具有或多或少的部件和/或不同的架构。
在实施例中，所实现的无线网络可以是第三代合作伙伴项目的增强的长期演进(LTE)无线通信标准，该无线通信标准可以包括，但不限于，3GPP的LTE-A标准的Release 8、9、10、11和12或者之后的版本。
尽管出于描述的目的已经示出并且描述了某些实施例，但被设计以实现相同目的的各种替代和/或等同实施例或实现方式可以在不背离本公开的范围的情况下代替所示出和所描述的实施例。本申请旨在覆盖本文所讨论的实施例的任何改编或变体。因此，显然旨在于本文所描述的实施例仅由权利要求及其等同进行限定。
根据各个实施例，存在一种装置，该装置包括处理电路，该处理电路被配置为生成用于在物理上行链路控制信道(PUCCH)上利用预定周期向eNB发送的调度请求(SR)，并且在维护具有该预定周期的调度请求的生成的同时，发起随机接入过程来请求对上行链路资源进行分配。
根据各个实施例，处理电路还被配置为生成功率偏好指示符(PPI)信息要素，该PPI信息要素指示该装置正以低功耗状态进行操作。
根据各个实施例，处理电路还被配置为使得装置以超过接近500ms的断续接收(DRX)循环进行操作。
根据各个实施例，该装置还包括接收机模块，该接收机模块被配置为从eNB接收RA阻塞计时器，其中，该电路还被配置为：如果到传输下一周期性调度请求的时间小于接收到的RA阻塞计时器值，则禁止发起随机接入过程。
根据各个实施例，预定的周期是如下项之一：100ms、200ms、400ms、600ms、1000ms以及2560ms。
根据各个实施例，该装置还包括接收模块，该接收模块可操作来从eNB接收RRC连接重新配置消息，该RRC连接重新配置消息包括RA阻塞计时器值。
根据各个实施例，提供了一种装置，该装置包括用于生成在物理上行链路控制信道(PUCCH)上利用预定周期向eNB发送的调度请求(SR)的装置，以及用于在维护具有该预定周期的调度请求的生成的同时发起随机接入过程来请求对上行链路资源进行分配的装置。
根据各个实施例，该装置还包括如下项之一：片上系统、芯片组、用户设备以及机器类型通信(MTC)设备。
根据各个实施例，提供了一种用户设备，该用户设备包括任何所描述的实施例的装置，并且还包括如下项中的一项或多项：屏幕、扬声器、触摸屏、键盘、包括多个天线的天线阵列、图形处理器、或应用处理器。
根据各个实施例，提供了一种在无线通信网络中请求上行链路资源的方法，该方法包括：在物理上行链路控制信道(PUCCH)上向eNB发送周期性调度请求(SR)，利用第一预定周期来发送所述周期性调度请求；以及在继续以该预定周期发送周期性调度请求的同时，执行随机接入(RA)过程以请求对上行链路资源进行分配。
根据各个实施例，该方法还包括从eNB接收RA阻塞计时器值，以及只在发送下一周期性调度之前的时间大于接收到的RA阻塞计时器值时执行随机接入过程。
根据各个实施例，接收RA阻塞计时器值还包括从eNB接收RRC连接重新配置消息，该RRC连接重新配置消息包括RA阻塞计时器值。
根据各个实施例，该方法还包括从eNB接收指示，该指示指示eNB使能在继续发送周期性调度请求的同时使用随机接入过程。
根据各个实施例，执行随机接入过程包括：响应于识别出一个或多个上行链路数据分组要被发送至eNB，执行随机接入过程。
根据各个实施例，在继续发送周期性调度请求的同时执行随机接入过程还包括：响应于以低功耗状态进行操作，在继续发送周期性调度请求的同时执行随机接入过程。
根据各个实施例，在继续发送周期性调度请求的同时执行随机接入过程还包括：响应于以超过500ms的断续接收(DRX)循环进行操作，在继续发送周期性调度请求的同时执行随机接入过程。
根据各个实施例，提供了一种用户设备，该用户设备包括处理器和包括计算机程序指令的非暂态存储器，当这些计算机指令在处理器上被运行时使得用户设备执行上述任意实施例的方法。
根据各个实施例，提供了在无线通信系统中使用的eNB，该eNB包括电路，该电路被配置为对被连接到该eNB的UE可以支持同时使用调度请求(SR)过程和随机接入(RA)过程进行确定，在确定UE支持同时使用SR过程和RA过程时，向UE提供RA阻塞计时器。
根据各个实施例，该电路还被配置为使得由UE使用的SR周期大于80ms。
根据各个实施例，该电路还被配置为生成RRC连接重新配置消息，该RRC连接重新配置消息包括用于向UE发送的RA阻塞计时器。
根据各个实施例，提供了在无线通信系统中使用的eNB，该eNB包括用于对被连接到该eNB的UE可以支持同时使用调度请求(SR)过程和随机接入(RA)过程进行确定的装置，以及可操作来在确定UE支持同时使用SR过程和RA过程时向UE提供RA阻塞计时器的装置。
根据各个实施例，eNB还可以包括用于向UE发送如下项中至少一项的装置：RA阻塞计时器和使用RA过程和SR过程二者的指示。
根据各个实施例，提供了一种在无线通信网络中生成用于向UE发送的RA阻塞计时器的方法，该方法包括：对所连接的UE可以支持同时使用调度请求(SR)过程和随机接入(RA)过程以请求上行链路资源进行确定，基于随机接入信道(RACH)上的负载和针对UE完成随机接入过程所估计的时间来确定阻塞计时器值。
根据各个实施例，该方法还包括将RRC连接重新配置消息发送至UE，该RRC连接重新配置消息包括RA阻塞计时器值。
根据各个实施例，提供了一种非暂态计算机可读介质，该非暂态计算机可读介质包括计算机程序指令，当这些计算机程序指令在处理器上被运行时使得执行所描述的任意实施例的方法。

Claims (25)

1.一种包括处理电路的装置，所述处理电路被配置为：
生成用于在物理上行链路控制信道(PUCCH)上利用预定周期向eNB发送的调度请求(SR)；以及
在维护利用所述预定周期生成调度请求的同时，发起随机接入过程来请求对上行链路资源的分配。
2.如权利要求1所述的装置，其中所述处理电路还被配置为：生成功率偏好指示符(PPI)信息要素，该PPI信息要素指示所述装置正以低功耗状态进行操作。
3.如权利要求1所述的装置，其中所述处理电路还被配置为使得所述装置以超过500ms的断续接收(DRX)循环进行操作。
4.如权利要求1所述的装置，还包括接收机模块，所述接收机模块被配置为从所述eNB接收RA阻塞计时器，并且其中所述处理电路还被配置为：如果到发送下一周期性调度请求的时间小于所接收的RA阻塞计时器值，则禁止发起所述随机接入过程。
5.如权利要求1所述的装置，其中所述预定周期是如下项之一：100ms、200ms、400ms、600ms、1000ms以及2560ms。
6.如权利要求4所述的装置，还包括接收模块，所述接收模块可操作来从所述eNB接收RRC连接重新配置消息，所述RRC连接重新配置消息包括所述RA阻塞计时器值。
7.一种装置，包括：
用于生成用来在物理上行链路控制信道(PUCCH)上利用预定周期向eNB发送的调度请求(SR)的装置；以及
用于在维护具有所述预定周期的调度请求的生成的同时发起随机接入过程来请求对上行链路资源的分配的装置。
8.如任意前述权利要求所述的装置，其中所述装置包括如下项之一：片上系统、芯片组、用户设备以及机器类型通信(MTC)设备。
9.一种包括权利要求1至7中任意权利要求所述的装置的用户设备，并且所述用户设备还包括如下项中的一项或多项：屏幕、扬声器、触摸屏、键盘、包括多个天线的天线阵列、图形处理器、或应用处理器。
10.一种在无线通信网络中请求上行链路资源的方法，所述方法包括：
在物理上行链路控制信道(PUCCH)上向eNB发送周期性调度请求(SR)，所述周期性调度请求是以第一预定周期来进行发送的；以及
在继续以该预定周期发送所述周期性调度请求的同时，执行随机接入(RA)过程以请求对上行链路资源的分配。
11.如权利要求10所述的方法，还包括：
从所述eNB接收RA阻塞计时器值；以及
仅在发送下一周期性调度之前的时间大于所接收的RA阻塞计时器值时执行所述随机接入过程。
12.如权利要求11所述的方法，其中接收所述RA阻塞计时器值还包括：从所述eNB接收RRC连接重新配置消息，所述RRC连接重新配置消息包括所述RA阻塞计时器值。
13.如权利要求10所述的方法，还包括从所述eNB接收指示，所述指示表明所述eNB使能在继续发送所述周期性调度请求的同时使用所述随机接入过程。
14.如权利要求10所述的方法，其中执行所述随机接入过程包括：响应于识别出一个或多个上行链路数据分组要被发送至所述eNB，执行所述随机接入过程。
15.如权利要求10所述的方法，其中在继续发送所述周期性调度请求的同时执行随机接入过程还包括：响应于以低功耗状态进行操作，在继续发送所述周期性调度请求的同时执行所述随机接入过程。
16.如权利要求10所述的方法，其中在继续发送所述周期性调度请求的同时执行随机接入过程还包括：响应于以超过500ms的断续接收(DRX)循环进行操作，在继续发送所述周期性调度请求的同时执行所述随机接入过程。
17.一种用户设备，包括：
处理器；以及
非暂态存储器，所述非暂态存储器包括计算机程序指令，当所述计算机程序指令在处理器上被运行时使得所述用户设备执行权利要求10至16中任意权利要求的方法。
18.一种用于无线通信系统的eNB，所述eNB包括电路，所述电路被配置为：
对被连接到所述eNB的UE能够支持同时使用调度请求(SR)过程和随机接入(RA)过程进行确定；
在确定所述UE支持同时使用SR过程和RA过程时，向所述UE提供RA阻塞计时器。
19.如权利要求18所述的eNB，其中所述电路还被配置为：使得由UE使用的SR周期大于80ms。
20.如权利要求19所述的eNB，其中所述电路还被配置为：生成RRC连接重新配置消息，所述RRC连接重新配置消息包括用于向所述UE发送的RA阻塞计时器。
21.一种用于无线通信系统的eNB，所述eNB包括：
用于对被连接到所述eNB的UE能够支持同时使用调度请求(SR)过程和随机接入(RA)过程进行确定的装置；以及
可操作来在确定所述UE支持同时使用SR过程和RA过程时向所述UE提供RA阻塞计时器的装置。
22.如权利要求21所述的eNB，还包括用于向所述UE发送如下项中至少一项的装置：RA阻塞计时器和使用RA过程和SR过程二者的指示。
23.一种在无线通信网络中生成用于向UE发送的RA阻塞计时器的方法，所述方法包括：
对所连接的UE能够支持同时使用调度请求(SR)过程和随机接入(RA)过程以请求上行链路资源进行确定；
基于随机接入信道(RACH)上的负载和针对所述UE完成随机接入过程所估计的时间来确定阻塞计时器值。
24.如权利要求23所述的方法，还包括将RRC连接重新配置消息发送至所述UE，所述RRC连接重新配置消息包括RA阻塞计时器值。
25.一种非暂态计算机可读介质，所述非暂态计算机可读介质包括计算机程序指令，当所述计算机程序指令在处理器上被运行时使得权利要求10至16或者权利要求23或24中任意权利要求所述的方法被执行。
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