CN103947266A - 采用载波聚合的上行链路功率控制信令 - Google Patents
采用载波聚合的上行链路功率控制信令 Download PDFInfo
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Abstract
本发明公开了采用载波聚合为半持续调度提供上行链路功率控制信令的技术。一种方法包括:接收识别信息的位置的传送器功率控制(TPC)载波聚合(CA)物理下行链路控制信道(PDCCH)配置信息元素(IE),以使用半持续调度调节所述UE的所选择的分量载波的上行链路功率控制。TPC-CA-PDCCH配置IE包括UE的所选择的分量载波的载波索引值,以允许所选择的分量载波的功率级别被单独调节。物理上行链路共享信道和/或物理上行链路控制信道的功率级别可以针对所选择的分量载波来调节。
Description
背景技术
在现代社会中,无线通信设备的使用继续变得更加无处不在。无线设备使用的大幅度增加部分由设备的增长的能力驱动。尽管无线设备曾经仅被用于传送声音和文本,但其显示视听呈现的能力已驱动下述需求:能够传送和接收图片、与游戏、电视、电影等相关的信息。
增加能够被传送的数据量的一种方式是通过载波聚合的使用。载波是信息被放置在其上的准许频域中的信号。能够被放置在载波上的信息量由载波的带宽确定。所述准许频域通常被限制在带宽中,尤其当存在正同时使用准许频域中的带宽的大量用户时。
载波聚合使多个载波信号能够在用户无线设备和基站之间同时传送。多个不同的载波可以被使用。在一些实例中,载波可以来自不同的准许频域。这给无线设备提供了更广的选择,使更多的带宽能够被获得。更大的带宽能够被用于传送带宽密集操作,诸如,流送视频或大数据文件。
各种无线标准已被草拟,其使得无线通信设备能够共同操作。然而,无线标准未完成如下信息的定义:该信息需要在无线设备和基站之间交换,以允许载波聚合在移动无线通信系统中发生。
附图说明
发明的特征和优点从接下来结合了附图的详细描述将是明显的,附图通过示例的方式一起图示了发明的特征;并且,其中:
图1a图示了依据示例的连续分量载波的载波聚合;
图1b图示了依据示例的非连续分量载波的载波聚合;
图2图示了依据示例的载波聚合的框图;
图3图示了依据示例的描绘信息元素的抽象语法表示1(ASN.1);
图4图示了依据示例的使用载波聚合控制用户设备的上行链路功率的信息元素的框图;
图5描绘了依据本发明的实施例的采用载波聚合为半持续调度提供用户设备(UE)的上行链路功率控制信令的方法的流程图;以及
图6是依据示例的移动设备的框图。
现在将参考图示的示例性实施例,并且特定的语言将在此用于描述相同的实施例。然而将被理解的是,由此不意图限制发明的范围。
具体实施方式
在公开和描述本发明之前,将被理解的是:这个发明不限于在此公开的特定结构、过程步骤、或材料,而是延伸到将由相关领域的普通技术人员认识到的其等价物。还应理解的是:在此所采用的术语仅被用于描述特定实施例的目的,并且不意图是限制性的。
定义
如在此所使用的,术语“基本上”指代动作、特性、性质、状态、结构、项目、或结果的完全或接近完全的范围或程度。例如,被“基本上”包围的对象将意味着所述对象被完全地包围或接近完全地包围。在一些情形下,从绝对完全性偏离的精确可允许程度取决于特定的背景。然而,通常来讲,完成的接近将使得具有相同的总体结果,好像获得绝对和整体的完成。当被用于否定含义时,“基本上”的使用同样可适用于指代动作、特性、性质、状态、结构、项目、或结果的完全或接近完全的缺乏。
示例性实施例
下面提供技术实施例的初始概述,并且然后特定的技术实施例稍后被进一步详细地描述。这个初始的概要旨在帮助读者更快地理解技术,而不是意图识别所述技术的关键特征或必要特征,也不意图限制要求保护的主题的范围。为了下面所描述的概述和实施例的清楚,接下来的定义被提供。
上行链路传送功率是在无线通信系统中优化上行链路性能的关键方法之一。在蜂窝类型的无线网络中,上行链路涉及从无线设备传送到网络节点(即,基站)。高效传送数据的能力导致更长的电池组寿命和便携式设备传送和接收更多数据的能力。
在第三代合作伙伴计划(3GPP)长期演进(LTE)版本10(2011年3月23日)中,基于称为传送器功率控制(TPC)的功率控制算法规定传送功率。网络节点被称为演进通用陆地无线电接入网络(E-UTRAN)NodeB(节点B)(eNB 或eNodeB(e节点B))。无线设备被称为用户设备(UE)。
TPC包含两个部分,开环功率控制和闭环功率控制。开环功率控制因数可以被用于为TPC设置基本操作点。开环功率控制因数可以由eNodeB使用介质存取控制(MAC)协议子层通信发送到UE。闭环功率因数进行更细且更快的调节。闭环功率因数可以通过控制信道(诸如,物理下行链路控制信道(PDCCH))发送,其包括用于TPC调节的字段。在一些情形下,在所述控制信道上没有上行链路调度,或者没有上行链路许可。当这发生时,则存在替代的介质来把所述TPC调节从eNodeB传送到UE。
特别地,在PDCCH上承载的下行链路控制信息(DCI)包括两个特定的格式(格式3和3A)来承载TPC信息以允许来自UE的传送功率被频繁地调节。DCI格式3和3A在可公开得到的3GPP LTE技术规范(TS)36.212 版本10中被定义。
在一些实施例中,TPC可以被用于在一个子帧接一个子帧的基础上调节功率,以确保基本上最小必要功率被用于传送每个子帧中的数据,由此优化功率使用并且最大化充电之间的电池使用的长度。在每个子帧处,传送功率可以基于TPC值而递增或递减,所述TPC值被从eNodeB经由PDCCH传送到UE。
半持续调度(SPS)是以下特征:显著减少用于应用的控制信道开销,所述应用需要持续的无线电资源分配,诸如,因特网协议之上的语音(VOIP)。在LTE规范中,因为下行链路和上行链路业务信道是动态共享的信道,所以下行链路和上行链路二者被充分地调度。为了实现动态共享,PDCCH提供访问许可信息以识别哪些用户应解码每个子帧中的物理下行链路共享信道(PDSCH)中的数据,以及哪些用户被允许在物理上行链路共享信道(PHSCH)上传送每个子帧。
采用SPS,每个下行链路或上行链路物理资源块(PRB)分配经由PDCCH上的访问许可消息而被准许。许多类型的应用具有大的分组尺寸,意味着每个子帧仅调度少数用户。然而,对于使用小分组的持续分配的应用(诸如,VOIP),访问许可控制信道开销可能是显著的。
为了减少能够与使用小分组的持续分配的应用一起发生的开销的量,持续物理资源块(PRB)分配在SPS中被引入。UE能够预期在UE处接收的下行链路传送上的持续PRB分配。对于上行链路传送,所述UE也能够使用持续PRB分配。
SPS的使用能够显著地减小开销的量。然而,持续PRB分配的使用意味着在控制信道上通常没有上行链路调度,或没有上行链路许可。因此,TPC信息可以采用DCI格式3或3A承载。
一种增加可以被传送的数据量的方式是通过载波聚合的使用。载波是信息被放置在其上的允许频域中的信号。能够被放置在载波上的信息量由载波带宽确定。所述允许频域通常被限制在带宽中。当大量用户正同时使用所允许的频域中的带宽时,带宽限制变得更加严峻。
载波聚合使多个载波信号能够在用户无线设备和基站之间同时被传送。多个不同的载波可以被使用。在一些实例中,载波可以来自不同的允许频域。这给无线设备提供了更广的选择,使更多的带宽能够被获得。更大的带宽能够被用于传送带宽密集操作,诸如,流送视频或大数据文件。
图1a图示了连续载波的载波聚合的示例。在示例中,三个载波沿着频带被邻近设置。每个载波可以被称为分量载波。在连续类型的系统中,分量载波被设置为彼此相邻,并且典型地被设置在单个频带内。频带是电磁谱中所选择的频率范围。所选择的频带被指定以供无线通信(诸如,无线电话)使用。某些频带由无线服务提供者拥有或租赁。每个相邻分量载波可以具有相同的带宽或不同的带宽。带宽是频带的所选择部分。无线电话传统地在单个频带内进行。
图1b图示了非连续分量载波的载波聚合的示例。非连续分量载波可以被沿着频率范围分离。每个分量载波甚至可以被设置在不同的频带中。使用不同频带中的分量载波的能力实现了更快的通信速度和可用带宽的更高效使用。
在3GPP LTE标准中的载波聚合(CA)的一个实施例中,通用移动电信系统(UMTS)陆地无线电接入网络的分量载波(CC)可以被组合在一起以形成针对UE的较大的带宽(如图2中所图示的)。例如,UMTS可以在频谱216中具有100 MHz的系统带宽210,其中每个CC 212具有20 MHz的带宽。每个CC可以包括多个子载波214。一些UE 230可以通过把五个20 MHz的CC聚合在一起来获得100 MHz的UE带宽220而使用整个100 MHz的系统带宽。
在另一个示例中,两个UE 232a和232b(每个具有40MHz带宽容量)均可以一起使用两个20 MHz的CC以获得针对每个UE的40 MHz的UE带宽222。在另一示例中,每个UE 234a、234b、234c、234d和234e可以使用单个20 MHz的CC,以获得20 MHz的UE带宽224。eNodeB处的CC可以被聚合用于一些UE,而其它的UE可以在相同的时间间隔期间使用单个CC。例如,当均使用单个20 MHz CC的三个UE在100 MHz带宽系统(未示出)中被使用时,具有40 MHz带宽的一个UE可以被配置。载波聚合允许由eNodeB基于无线通信系统的限制、UE的能力和带宽需求、系统的可用带宽和/或系统上其它UE的加载来调节和适配UE的带宽。
每个UMTS可以使用不同的载波带宽(如图2中所图示的)。例如,3GPP LTE版本8(REL - 8)的载波带宽和版本10(REL - 10)的CC带宽可以包括:1.4 MHz 310, 3 MHz 312, 5 MHz 314, 10 MHz 316, 15 MHz 318和20 MHz 320。1.4 MHz的CC可以包括6个资源块(RB),该资源块包括72个子载波。每个RB可以包括12个15 MHz的子载波(在频率轴上),以及每个子载波6或7个正交频分复用(OFDM)符号。3MHz的CC可以包括15个RB,该RB包含180个子载波。5MHz的CC可以包括25个RB,该RB包含300个子载波。10MHz的CC可以包括50个RB,该RB包含600个子载波。15MHz的CC可以包括75个RB,该RB包含900个子载波。20MHz的CC可以包100个RB,该RB包含1200个子载波。这些示例不意图是限制性的。载波聚合可以使用在每个CC中具有不同带宽和不同数量子载波的附加模式来实现。
每个eNodeB可以具有多个不同的载波。例如,eNodeB可以具有五个分离的载波。每个载波可以具有特定的带宽和中心频率。载波可以被设置在相同的频带或不同的频带。
eNodeB的每个可用的载波可以由eNodeB分配eNodeB特定载波索引(eNB CI)。即,所述CI对于所述eNodeB是特定的。如果UE被切换到另一个eNodeB,则那个eNodeB将被分配新的eNB CI。eNodeB CI可以由eNodeB用于将来的参考。
当被配置成以与 3GPP LTE 版本8/9/10过程一致的方式操作的UE被上电时,则所述UE典型地配置成扫描、选择和附着到由eNodeB提供的可用载波中的一个。可以假设的是:全部的RRC-IDLE模式过程也由与 3GPP LTE 版本8/9/10过程一致的每个UE处理。
由UE选择用于附着到eNodeB的载波可以被认为是初始和缺省载波,在此被称为主分量载波(PCC)。由eNodeB使用的所有其它载波可以被称为第二分量载波(SCC)。UE的PCC可以出于各种目的而被改变。例如,PCC可以由于负载平衡、干扰管理、或其它链路级别的优选而被改变。在不使用网络级别信令的情形下,所述改变可以通过使用RRC等级级别配置更新来实现。关于载波聚合的附加信息可以在案卷号P36467、2010年12月22日提交的美国专利申请12/ 975,725中被获得。
当前,对于DCI格式3/3A,3GPP LTE 版本10规范仅支持单个小区。因此,当SPS被使用且TPC信息被经由DCI格式3/3A传送时,仅单个分量载波可以被使用。这当前把使用SPS和TPC的应用(诸如,VOIP)限制到单个分量载波。
为了克服这个限制,DCI格式3/3A可以被修改以支持附加分量载波的使用。通过修改DCI格式3和3A来支持附加分量载波,采用SPS的应用可以利用由载波聚合提供的附加带宽。
在本发明的一个实施例中,DCI格式3/3A可以被配置成显式调节每个单独UE的功率控制。可以由eNodeB通过TPC-PDCCH-配置信息元素(IE)通知每个UE关于在TPC中包含的哪些位是UE的功率调节。为了支持每个UE的每个分量载波的功率调节,TPC-PDCCH-Config IE可以被更新以包括附着到UE的多个分量载波的载波的索引信息。在一个实施例中,附着到UE的每个分量载波可以被监控和更新。可替代地,仅活动分量载波可以被监控。
例如,图3提供了PTC-CA-PDCCH-Config IE的一个示例,其对于被配置成与eNodeB通信的每个UE支持全部的活动的PCell和SCell组合。使用抽象语法表示1(ASN.1)来图示信息元素。ASN.1是标准化的表示,其被用于描述表示、编码、传送和解码数据的结构。
在图3的示例中,可以使用IE设置或释放功率控制功能。TPC无线电网络临时标识符(RNTI)被用于发送TPC命令,该命令可适用于物理上行链路控制信道(PUCCH)或物理上行链路共享信道(PUSCH)。TPC-Index值是值N或M,其中N表示3GPP LTE TS 36.212,第5.3.3.1.6节中描述的两位功率调节值,以及M表示版本10中的3GPP LTE TS 36.212, 第5.3.3.1.7 节中描述的一位功率调节值。参数TPC-Index(TPC-索引)可以通过较高的层传送,并且确定对给定UE的TPC命令的索引。采用包括载波聚合(CA)索引,基于分量载波的载波索引(CID)值,对TPC命令的索引可以用于给定分量载波。
图4示出了当使用具有3个活动分量载波的频分复用(FDD)在UE和eNodeB之间通信时使用图3的TPC-CA-PDCCH-Config IE的一个示例。所述活动分量载波被图示为CC1、CC2和CC3。上行链路和下行链路信号二者被示出。在这个示例中,在CC1上的子帧1中的PDCCH上接收的信息可以被解码,以确定TPC-RNTI和TPC-CA-Index(TPC-CA-索引)。TPC-CA索引的值可以是“m ”或“n”(如之前相对于DCI格式3和3A所描述的),以识别第m个1位(DCI格式3A)或第n个2位(DCI格式3)。采用三个分量载波,将存在三个不同的indexOfFormat3(格式3索引)值和三个不同的indexOfFormat3A(格式3A索引)值的可能性。尽管对于使用单个位的功率调节和两个位的功率调节的特定示例被提供,但这不意图是限制性的。在一个实施例中,更精细的调节可以被提供,诸如,调节功率级别的3个或更多位的分辨率。
在图4中,ASN.1的图示示出了CHOICE(选择)将被基于TPC-CA-Index值做出。在示例中,信息在i+4子帧中的第二分量载波的上行链路上被传送。如果上行链路中的第二分量载波被针对采用DCI格式3的闭环功率控制(CLPC)设置,则其是第二个选择,并且值“2”可在ASN.1消息中被发送以识别哪个CC被针对这个功率控制设置。如果上行链路中的第二CC被针对采用格式3A的CLPC设置,则其是第五个选择(即,三个CID-indexOfFormat3(CID-格式3索引)变量,继之以两个CID-indexOfFormat3A(CID-格式3A索引)变量,其中第二个(列表中的第五个)表示CC2)。因此,值5可以在ASN.1消息中被设置。相似地,对于下一个子帧(i+5),第三分量载波可以基于3(对于DCI格式3)或6(对于DCI格式3A)来选择,以把第三个分量载波识别为针对CLPC设置的分量载波。然后,上行链路子帧中的信息可以包括PUSCH中的SPS传送。
相对于图3和4描述的显式方法的使用提供了显式地调节每个单独UE的每个分量载波的功率控制的灵活方法。然而,其还使用附加的信令。在一些情形下,可能令人期望的是:传送较少的信息,而仍对采用DCI格式3和3A的分量载波提供支持。
因此,在另一个实施例中,在不修改TPC-PDCCH-Config IE的情形下,隐式的方法可以被用于识别SCell的TPC索引。至少存在三种不同的方式来把SCell TPC索引链接到PCell TPC索引。
在第一示例中,全部所支持的SCell被基于PCell TPC索引值分配缺省索引值分配。例如,UE可以具有一个PCell 和两个SCell。在这个示例中,PCell的TPC-index(TPC-索引)值是6。第一SCell的TPC-index可以使用TPC-index值7。第二SCell可以使用TPC-index值8。TPC-index的值可以被基于其CID从最小到最大分配给SCell。可替代的分配也可以被使用,诸如,最大到最小,或分配每隔一个TPC-index值或每n个值(其中n是正整数),而不是邻近的值。可以认识到的是:附加的分配模式也可以被使用。
在与第一示例相似的第二示例中,PCell可以被分配缺省的TPC索引值,继之以为UE的全部活动SCell提供分配。在这种情形下,仅活动SCell被针对TPC-index计数。例如,UE可以具有一个PCell和两个SCell。PCell的TPC-index值可以是6。SCell中的一个可以是活动的,而其它是不活动的。在这种情形下,活动SCell可以被分配TPC-index值7。当另一SCell从不活动状态移动到活动状态时,TPC-index需求可以被信号发送。如果第一SCell仍是活动的,则第二SCell可以被分配TPC-index值8。可替代地,如果在第二SCell变为活动之前第一SCell变为不活动,则第二SCell可以被分配TPC-index值7。如在第一示例中,TPC-index值可以基于其CID被分配给SCell,从最小到最大。可替代的分配也可以被使用,诸如,从最大到最小,或分配每隔一个TPC-index值或每n个值(其中,in是正整数),而不是连续值。可以认识到的是:附加的分配模式也可以被使用。
在第三示例中,PCell和SCell功率调节可以被捆绑在一起。这为计数多个分量载波和调节其功率提供了最简单的过程。在这种情形下,全部的SCell可以使用相同的TPC索引值。与PCell相同的传送功率调节可以被应用到每个SCell。然而,由于每个分量载波中的不同的加载和/或干扰配置,这个过程与显式过程或第一和第二隐式示例相比可能是低效率的。
在另一个实施例中,公开了采用载波聚合为半持续调度提供用户设备(UE)的上行链路功率控制信令的方法,如在图5的流程图中描绘的。所述方法包括如下操作:接收识别信息位置的传送器功率控制(TPC)载波聚合(CA)物理下行链路控制信道(PDCCH)配置信息元素(IE),以使用半持续调度调节UE的所选择的分量载波的上行链路功率控制(如块510中所示)。TPC-CA-PDCCH配置IE可以包括UE的所选择分量载波的载波索引值,以允许所选择分量载波的功率级别被单独地调节。所述方法进一步包括:调节所选择分量载波的物理上行链路共享信道(PUSCH)和物理上行链路控制信道(PUCCH)中的至少一个的功率级别(如块520中所示)。
图6提供了移动设备(诸如,用户设备(UE)、移动站(MS)、移动无线设备、移动通信设备、平板、手持机、或其它类型的移动无线设备)的示例性图示说明。移动设备可以包括一个或多个天线,该天线配置成与节点、宏节点、低功率节点(LPN)、或者传送站(诸如,基站(BS)、演进型Node B(eNB)、基带单元(BBU)、远程无线头端(RRH)、远程无线电设备(RRE)、中继站(RS)、无线电设备(RE)、或者其它类型的无线广域网(WWAN)接入点)进行通信。移动设备可以配置成使用至少一个无线通信标准进行通信,该标准包括:3GPP LTE、WiMAX、高速分组接入(HSPA)、蓝牙(Bluetooth)和WiFi。移动设备可以使用针对每个无线通信标准的单独天线、或针对多个无线通信标准的共享天线进行通信。移动设备可以在无线局域网(WLAN)、无线个人区域网(WPAN)和/或WWAN中通信。
图6还提供了可以被用于来自移动设备的音频输入和输出的麦克风和一个或多个扬声器的图示说明。显示器屏可以是液晶显示器(LCD)屏、或其它类型的显示器屏,诸如,有机发光二极管(OLED)显示器。显示器屏可以被配置为触摸屏。触摸屏可以使用电容性、电阻性或另一类型的触摸屏技术。应用处理器和图形处理器可以被耦合到内部存储器,以提供处理和显示的能力。非易失性存储器端口还可以被用于把数据输入/输出选项提供给用户。非易失性存储器端口还可以被用于扩展移动设备的存储器能力。键盘可以与移动设备集成到一起,或被无线连接到移动设备,以提供附加的用户输入。虚拟键盘也可以使用触摸屏提供。
各种技术或其某些方面或部分可以采用体现在有形介质(诸如,软盘、CD-ROM、硬盘驱动器、非临时性计算机可读存储介质、或任何其它机器可读存储介质)中的程序代码(即,指令)的形式,其中,当所述程序代码被加载到机器(诸如,计算机)中并且被机器所执行时,所述机器变为用于实施各种技术的装置。在可编程计算机上的程序代码执行的情形下,所述计算设备可以包括:处理器、可由处理器读取的存储介质(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。所述易失性和非易失性存储器和/或存储元件可以是:RAM、EPROM、闪存驱动器、光学驱动器、磁性硬盘驱动器、或用于存储电子数据的其它介质。所述基站和移动设备还可以包括: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。可以实现或利用在此描述的各种技术的一个或多个程序可以使用应用编程接口(API)、可重用控件等。此类程序可以用高级别的面向过程或面向对象的编程语言来实现,以与计算机系统通信。然而,如果需要,则(一个或多个)程序可以以汇编或机器语言来实现。在任何情形下,所述语言可以是编译或解释语言,并且与硬件实现方式相结合。
应理解的是:在本说明书中描述的许多功能单元已被标记为模块,以便更特别地强调其实现方式的独立性。例如,模块可以被实现为硬件电路,该硬件电路包括:定制VLSI电路或门阵列、现成(off-the-shelf)的半导体(诸如,逻辑芯片、晶体管)、或其它分立组件。模块还可以在可编程硬件设备(诸如,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。
模块还可以在供各种类型的处理器执行的软件中实现。例如,可执行代码的所识别模块可以包括:计算机指令的一个或多个物理或逻辑块,其例如可以被组织为对象、过程或函数。然而,所识别模块的可执行体不必被物理地放置在一起,而是可以包括在不同位置中存储的不同的指令,其当被逻辑上连接在一起时包括所述模块并且实现所述模块的上述目的。
实际上,可执行代码的模块可以是单个指令,或许多指令,并且甚至可以被分布在数个不同的代码段上、在不同程序之间且跨越数个存储器设备。相似地,操作数据在此可以在模块内被说明和识别,并且可以被采用任何适合的形式体现和被组织在任何适合类型的数据结构内。操作数据可以被收集为单个数据集合,或可以被分布在不同位置上(包括在不同存储设备上),并且可以至少部分地仅仅作为电子信号存在于系统或网络上。所述模块可以是不活动的或活动的,包括可操作用于执行期望功能的代理。
遍及本说明书,对“一个实施例”或“实施例”的参考意味着:关于实施例描述的特定特征、结构、或特性被包括在本发明的至少一个实施例中。因此,在遍及本说明书的各个位置中出现的措辞“在一个实施例中”或“在实施例中”不一定都指代相同的实施例。
如在此被使用的,多个术语、结构元件、构成要素、和/或材料为了方便可以在通用的列表中呈现。然而,这些列表应被解释为好像所述列表的每个成员作为单独和唯一的成员被单独地识别。因此,此类列表的单独成员不应在没有相反指示的情形下仅基于其在通用组中的呈现而被解释为相同列表的任何其它成员的事实上的等同物。此外,本发明的各种实施例和示例在此可以连同其各种组件的替代物一起被参考。要理解的是:此类实施例、示例、和替代物将不被解释为彼此的事实上的等同物,而是将被解释为本发明的独立和自治的表示。
此外,在一个或多个实施例中,可以采用任何适合的方式组合所描述的特征、结构、或特性。在接下来的描述中,提供了众多特定的细节,诸如,材料、扣件、尺寸、长度、宽度、形状等的示例,从而提供了对发明的实施例的彻底理解。然而,相关领域的技术人员将认识到:本发明能够在不具有一个或多个所述特定细节的情形下实施,或者采用其它的方法、组件、材料等实施。在其它的实例中,众所周知的结构、材料、或操作未被详细地示出或描述,以避免使本发明的各方面模糊。
尽管之前的示例以一个或多个特定应用说明了本发明的原则,但对于本领域的普通技术人员将显然的是:能够在不具有创造性的劳动并且不背离发明的原则和概念的情形下做出实现方式的形式、使用和细节的众多修改。因此,除了如由下面提出的权利要求限制之外,不旨在限制本发明。
Claims (20)
1. 一种用户设备(UE),其被配置成采用载波聚合为半持续调度提供上行链路功率控制信令,所述用户设备UE包括:
传送器功率控制(TPC)模块,其被配置成接收识别TPC索引值和信息位置的TPC物理下行链路控制信道(PDCCH)配置信息元素(IE),以调节与所述UE相关联的所选择的分量载波的上行链路功率控制,其中,所述UE被配置成提供半持续调度;
TPC分配模块,其被配置成基于被分配给所选择的分量载波的TPC索引值把TPC索引值分配给至少一个分量载波;以及
功率调节模块,其被配置成调节所选择的分量载波和所述至少一个分量载波的物理上行链路共享信道(PUSCH)和物理上行链路控制信道(PUCCH)中的至少一个的功率级别。
2. 如权利要求1所述的UE,其中TPC分配模块被配置成基于被分配给所选择的分量载波的TPC索引值把TPC索引值分配给每个分量载波。
3. 如权利要求1所述的UE,其中TPC分配模块被配置成基于被分配给所选择的分量载波的TPC索引值把TPC索引值分配给每个活动分量载波。
4. 如权利要求1所述的UE,其中不同的TPC索引值被分配给每个分量载波,以识别所选择的分量载波和所述至少一个分量载波,从而把不同的功率级别调节应用到所选择的分量载波和所述至少一个分量载波。
5. 如权利要求1所述的UE,其中相同的功率级别调节被应用到所选择的分量载波和所述至少一个分量载波。
6. 如权利要求1所述的UE,其中,在TPC-PDCCH配置IE中,为每个分量载波提供分离的单个位功率控制值和两个位功率控制值,其中,基于每个分量载波的TPC索引值识别单个位功率控制值和两个位功率控制值中的一个。
7. 一种用户设备(UE),其被配置成采用载波聚合为半持续调度提供上行链路功率控制信令,所述用户设备UE包括:
载波聚合传送器功率控制(CA-TPC)模块,其被配置成接收识别信息的位置的TPC载波聚合(CA)物理下行链路控制信道(PDCCH)配置信息元素IE,以使用半持续调度调节UE的所选择的分量载波的上行链路功率控制;
其中,TPC-CA-PDCCH配置IE包括UE的所选择的分量载波的载波索引值,以允许所选择的分量载波的功率级别被单独调节;以及
功率调节模块,其被配置成调节所选择的分量载波的物理上行链路共享信道(PUSCH)和物理上行链路控制信道(PUCCH)中的至少一个的功率级别。
8. 如权利要求7所述的UE,其中TPC-CA-PDCCH配置IE被配置成基于第三代合作伙伴计划(3GPP)长期演进LTE下行链路控制信息(DCI)的格式3或格式3A进行操作。
9. 如权利要求7所述的UE,其中调节所选择的分量载波的上行链路功率控制的信息包括一个位和两个位中的一个。
10. 如权利要求7所述的UE,其中TPC-CA-PDCCH配置IE包括UE的每个分量载波的载波索引值。
11. 如权利要求7所述的UE,其中TPC-CA-PDCCH配置IE包括UE的每个活动分量载波的载波索引值。
12. 如权利要求7所述的UE,其中TPC-CA-PDCCH配置IE包括UE的每个分量载波的载波索引值以及每个分量载波的分离的单个位功率控制值和两个位功率控制值,其中,基于每个分量载波的载波索引值识别单个位功率控制值和两个位功率控制值。
13. 如权利要求7所述的UE,其中功率调节模块被配置成调节每个子帧处的物理上行链路共享信道(PUSCH)和物理上行链路控制信道(PUCCH)中的至少一个的功率级别。
14. 如权利要求7所述的UE,其中功率调节模块被配置成调节半持续调度的每个持续物理资源块分配处的物理上行链路共享信道(PUSCH)和物理上行链路控制信道(PUCCH)中的至少一个的功率级别。
15. 至少一种计算机可读介质,具有存储于其上的指令,指令用于采用载波聚合为半持续调度提供用户设备(UE)的上行链路功率控制信令,当所述指令在机器上执行时,使所述机器:
接收识别信息的位置的传送器功率控制(TPC)载波聚合(CA)物理下行链路控制信道(PDCCH)配置信息元素(IE),以使用半持续调度调节所述UE的所选择的分量载波的上行链路功率控制,其中TPC-CA-PDCCH配置IE包括UE的所选择的分量载波的载波索引值,以允许所选择的分量载波的功率级别被单独调节;以及
调节所选择的分量载波的物理上行链路共享信道(PUSCH)和物理上行链路控制信道(PUCCH)中的至少一个的功率级别。
16. 如权利要求15所述的计算机可读介质,当所述指令在机器上执行时,使所述机器:
从与所选择的分量载波相关联的eNodeB在物理下行链路控制信道(PDCCH上)接收TPC-CA-PDCCH配置IE。
17. 如权利要求15所述的计算机可读介质,当所述指令在机器上执行时,使所述机器:
接收TPC-CA-PDCCH配置IE,其中调节UE的所选择的分量载波的上行链路功率控制的信息包括单个位和多于一个位中的一种。
18. 如权利要求15所述的计算机可读介质,当所述指令在机器上执行时,使所述机器:
在TPC-CA-PDCCH配置IE中接收调节UE的每个分量载波的上行链路功率控制的信息的位置。
19. 如权利要求15所述的计算机可读介质,当所述指令在机器上执行时,使所述机器:
在TPC-CA-PDCCH配置IE中接收调节UE的每个活动分量载波的上行链路功率控制的信息的位置。
20. 如权利要求15所述的计算机可读介质,当所述指令在机器上执行时,使所述机器:
在TPC-CA-PDCCH配置IE中为UE的每个分量载波提供载波索引值并且为每个分量载波提供分离的单个位功率控制值和两个位功率控制值,其中,基于每个分量载波的载波索引值识别单个位功率控制值和两个位功率控制值。
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