CN108200653B - 上行链路和下行链路比率配置的灵活调整 - Google Patents
上行链路和下行链路比率配置的灵活调整 Download PDFInfo
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Abstract
本文中公开了用于无线通信网络内的各增强节点B(eNodeB)的上行链路‑下行链路比率配置的灵活调整的设备和方法。在一个实施例中,给定eNodeB配置成对于预定时间周期确定当前或者后续上行链路‑下行链路比率配置。将所确定的当前或者后续上行链路‑下行链路比率配置编码到特殊物理下行链路控制信道(PDCCH)中,特殊PDCCH被按照预定时间周期包含在至少一个无线电帧中。将包含特殊PDCCH的无线电帧传送给由给定eNodeB服务的用户设备。
Description
相关申请的交叉引用
本申请要求2011年4月1日提交的标题为“Advanced Wireless CommunicationSystems and Techniques”的美国临时专利申请No.61/471042的优先权,通过引用将其内容完整地结合到本文中。
本申请涉及与此同时提交的标题为“Flexible Configuration of Uplink andDownlink Ratio by Exchanging Information Using An X2 Interface”的PCT专利申请(律师档案号:884.J57W01)。
技术领域
一般来说,本公开涉及无线通信。更具体来说,本公开涉及改变无线通信系统内的上行链路和下行链路比率配置。
背景技术
在当前的第三代合作伙伴项目(3GPP)长期演进(LTE)时分双工(TDD)-高级版系统中,相同频带用于增强节点B(eNodeB)与用户设备(UE)之间的上行链路和下行链路传输。通过在相同频带上以称作子帧的各预定时间块传送上行链路数据或者下行链路数据,来分开上行链路和下行链路传输。在TDD部署中,上行链路和下行链路传输被构造成无线电帧,其时间长度均为10ms。各无线电帧可包括单帧或者时间长度各为5ms的两个半帧。每个半帧又可包括时间长度各为1ms的五个子帧。能够定义用于上行链路或下行链路传输的无线电帧内的子帧的具体指定-称作上行链路和下行链路配置。在图1的表100中示出七个所支持的上行链路和下行链路配置(又称作UL/DL配置、上行链路-下行链路配置、或者上行链路-下行链路比率配置),其中“D”表示为下行链路传输保留的子帧,“U”表示为上行链路传输保留的子帧,以及“S”表示包括下行链路导频时隙(DwPTS)、保护周期(GP)和上行链路导频时隙(UpPTS)字段的特殊子帧。其中还要注意,一些配置比另一些配置具有更多的上行链路子帧。例如,配置0具有六个上行链路子帧,而配置2具有两个上行链路子帧。
一旦演进通用陆地无线电接入网(EUTRAN)决定上述上行链路-下行链路配置中哪一个应用于给定的增强节点B(eNB或eNodeB),则这种配置在eNodeB所服务的一个或多个小区的正常操作期间不会改变。甚至当上行链路或下行链路传输负荷与当前的上行链路-下行链路配置失配时,也是如此。当前3GPP LTE-高级版系统不支持eNodeB的上行链路和下行链路比率配置的灵活调整。
附图说明
图1示出在当前3GPP LTE TDD-高级版标准下所支持的上行链路-下行链路比率配置。
图2示出按照一些实施例的无线通信网络的一个示例(部分)。
图3示出说明按照一些实施例、在图2的无线通信网络中包含的eNodeB的细节的示例框图。
图4示出按照一些实施例、供以TDD模式操作的3GPP LTE-高级版系统中使用的无线电网络临时标识符(RNTI)值的示例表格。
图5示出按照一些实施例、用于动态或者半静态地调整图2的无线通信网络中包含的每个eNodeB的上行链路-下行链路比率配置的示例流程图。
图6A-6C示出说明按照一些实施例、按照不同的预定时间周期包括特殊PDCCH的无线电帧的示例简图。
具体实施方式
提供以下描述,以便使任何本领域技术人员能够创建和使用计算机系统配置及相关方法和制造产品,来调整无线通信网络内的eNodeB的各个载波频率中的上行链路-下行链路比率配置。在一个实施例中,每个eNodeB基于系统/小区信息来确定或者调度当前或者后续上行链路-下行链路比率配置,并且生成指示所确定的当前或者后续上行链路-下行链路比率配置的特殊PDCCH的配置信息。特殊PDCCH按照预定时间周期被包含在至少一个无线电帧的第一子帧中。无线电帧中包含的特殊PDCCH由特定eNodeB所服务的用户设备来检测,以便适当地与eNodeB传递下行链路和上行链路数据。
本领域技术人员将易于想到对所述实施例的各种修改,本文所定义的一般原理可应用于其它实施例和应用,而没有背离本发明的精神和范围。此外,在以下描述中,为了便于说明而提出许多细节。但是,本领域技术人员会认识到,不用这些具体细节也可实施本发明的实施例。在其它情况下,众所周知的结构和过程没有以框图形式示出,以免不必要的细节影响对本发明的实施例的描述的理解。因此,本公开并不是要局限于所示的实施例,而是要被给予与本文所公开的原理和特征一致的最宽范围。
图2示出按照一些实施例的无线通信网络200的一个示例(部分)。在一个实施例中,无线通信网络200包括使用第三代合作伙伴项目(3GPP)长期演进(LTE)标准的演进通用陆地无线电接入网(EUTRAN),并且以时分双工(TDD)模式操作。无线通信网络200包括增强节点B(eNodeB或eNB)202和多个用户设备(UE)210。
eNodeB 202(又称作基站)配置成服务于表示为小区204的某个地理区域。位于小区204内的UE 210由eNodeB 202服务。eNodeB 202配置成在第一载波频率206(F1)(例如主载波分量)以及可选地在一个或多个辅助载波频率、例如第二载波频率208(F2)(例如辅助载波分量)上与UE 210进行通信。为了便于说明,图2中仅示出单个eNodeB。但是,要理解,无线通信网络200包括不止一个eNodeB,这些eNodeB中的每个eNodeB服务于可以或者可以不与eNodeB 202相邻的特定小区。
UE 210可包括配置成在无线通信网络200内进行通信的多种装置,包括但不限于蜂窝电话、智能电话、平板机、膝上型电脑、台式机、个人计算机、服务器、个人数字助理(PDA)、web设备、机顶盒(STB)、网络路由器、交换机或桥等。一个或多个UE 210可在任何给定时间移入或移出小区204。
在一个实施例中,位于小区204中的UE 210使用无线电帧向eNodeB 202传送数据(上行链路传输),并且从eNodeB 202接收数据(下行链路传输),所述无线电帧包括配置用于时分双工(TDD)操作的正交频分多址(OFDMA)帧。所述无线电帧中的每一个包括多个上行链路和下行链路子帧,上行链路和下行链路子帧按照从图1的表格100中所示的所支持的上行链路-下行链路比率配置之中选取的上行链路-下行链路比率配置来配置。(参见3GPP TS36.211版本9.1.0,E-UTRA物理信道和调制(Release 9),2010年3月)。
图3示出说明按照一些实施例的eNodeB 202的细节的示例框图。eNodeB 202包括处理器302、存储器304、收发器306、指令308和其它组件(未示出)。处理器302包括一个或多个中央处理单元(CPU)、图形处理单元(GPU)或者这两者。处理器302配置成为eNodeB 202提供处理和控制功能性。存储器304包括一个或多个短暂和静态存储器单元,这些存储器单元配置成为eNodeB 202存储指令、数据、设定信息等。收发器306包括一个或多个收发器,这些收发器配置成与eNodeB 202的范围之内的UE 210之间接收上行链路接收和传送下行链路传输。收发器306包括多输入多输出(MIMO)天线,以支持MIMO通信。
指令308包括指令或软件的一个或多个集合,指令或软件在计算装置(或机器)上执行,从而使这样的计算装置(或机器)执行本文所述方法的任一种。指令308(又称作计算机或机器可读指令)可在其执行期间完全或者至少部分驻留在处理器302和/或存储器304内。处理器302和存储器304还包括机器可读介质。在一个实施例中,处理器302配置成执行指令308,从而导致与在动态或半静态基础上调整给定eNodeB(例如eNodeB 202)的上行链路-下行链路比率配置相关联的操作,如下面详细描述。
图4示出按照一些实施例、供以TDD模式操作的3GPP LTE-高级版系统中使用的无线电网络临时标识符(RNTI)值的示例表格400。在当前技术规范中,RNTI值FFF4-FFFC被保留以供将来使用。(参见3GPP TS 36.321版本9.3.0,E-UTRA媒体访问控制协议规范(Release 9),2010年6月。)相比之下,表格400包括条目402,条目402包含RNTI值FFF4-FFFC的用法定义。在一个实施例中,为下行链路-上行链路-无线电网络临时标识符(DU-RNTI)指定RNTI值FFF4-FFFC。DU-RNTI表示一种附加类型的物理下行链路控制信道(PDCCH),PDCCH指示当前和/或后续无线电帧的上行链路-下行链路比率配置。为了指定新/附加类型的PDCCH,这个PDCCH的循环冗余校验(CRC)位采用一个RNTI值、例如FFF4-FFFC中的一个或多个来掩蔽。
这个PDCCH可放置在一个或多个无线电帧的第一子帧中,其中至少3位信令方案用
于指示哪一种上行链路-下行链路比率配置可适用于当前和/或后续无线电帧。在一个实施
例中,3位信令方案能够定义如下,对应于表格100(图1)中的当前所支持的上行链路-下行
链路比率配置,以便避免重新设计现有的混合自动重传请求(HARQ)。
3位信令 | 上行链路-下行链路配置 |
000 | 0 |
001 | 1 |
010 | 2 |
011 | 3 |
100 | 4 |
101 | 5 |
110 | 6 |
111 | 保留 |
在另一个实施例中,可为新类型的PDCCH实现不同的编码方案,只要该方案能够指定无线通信网络200内可能的上行链路-下行链路比率配置中的每一个。
图5示出按照一些实施例、用于动态或者半静态地调整无线通信网络200中包含的每个eNodeB的上行链路-下行链路比率配置的示例流程图500。使用上述新类型的PDCCH(DU-RNTI)的编码方案,每个eNodeB向UE传递在每一特定时间周期,哪种当前或后续上行链路-下行链路比率配置用于给定eNodeB所服务的小区。所调度的当前或者后续上行链路-下行链路比率配置可以保持或改变在给定eNodeB的现有配置。以下论述针对eNodeB 202进行;但是要理解,无线通信网络200内的每个eNodeB执行流程图500所示的过程。
在框502,eNodeB 202配置成对于预定时间周期调度当前或者后续上行链路-下行链路比率配置(又称作新上行链路-下行链路比率配置或者当前或将来上行链路-下行链路比率配置)。eNodeB 202基于与用户业务模式相关的系统/小区信息来确定小区204的正工作的上行链路-下行链路比率配置是否应当改变。eNodeB 202能够与相邻eNodeB交换与用户业务模式相关的系统/小区信息(例如下行链路和上行链路功率发送/接收或者负荷信息),并且使用这种系统/小区信息来确定正工作的上行链路-下行链路比率配置是否与实际用户业务模式失配。在与本申请同时提交的标题为“Flexible Configuration ofUplink and Downlink Ratio by Exchanging Information Using An X2 Interface”的PCT专利申请(律师档案号:884.J57WO1)中,提供了关于获得和交换与用户业务模式相关的系统/小区信息的细节。
作为一个示例,如果系统/小区信息指示正工作的上行链路-下行链路比率配置的上行链路子帧正承载着高业务负荷,而下行链路子帧正承载着低业务负荷,则eNodeB 202可决定改变到不同的上行链路-下行链路比率配置,该比率配置包括比正工作的上行链路-下行链路比率配置多的上行链路子帧。例如,如果正工作的配置是配置4(在每个无线电帧具有两个上行链路子帧和七个下行链路子帧),则eNodeB 202可确定切换到配置1(在每个无线电帧具有四个上行链路子帧)更好地服务于小区204内的UE 210。
另一方面,如果与用户业务模式相关的系统/小区信息使得发现正工作的配置是足够的,则由eNodeB 202所确定的当前或后续上行链路-下行链路比率配置可包括(现有的)正工作的配置。在任何情况下,eNodeB 202已经确定或者调度什么当前或者后续上行链路-下行链路比率配置将用于预定时间周期。
接下来,在框504,eNodeB 202配置成生成新类型的PDCCH,采用与框502中所确定的当前或者后续上行链路-下行链路比率配置对应的以上定义的DU-RNTI来掩蔽该PDCCH。这个PDCCH又可称作特殊PDCCH、新PDCCH、或者指示(或关联)上行链路-下行链路配置的PDCCH。eNodeB 202配置成按照eNodeB 202所调度的当前或者后续上行链路-下行链路比率配置在至少一个无线电帧的第一子帧的PDCCH区域中,调度以能够是值FFF4-FFFC中的一个或多个值的DU-RNTI来掩蔽的PDCCH。每个无线电帧是否包括以DU-RNTI掩蔽的PDCCH取决于预定时间周期,如下面详细描述。在eNodeB 202的辅助小区(Scell)上的物理下行链路共享信道(PDSCH)由主小区(Pcell)来调度的情况下,以DU-RNTI掩蔽的PDCCH仅在Pcell上传送。在Scell上的PDSCH由Scell本身来调度的情况下,则以DU-RNTI掩蔽的PDCCH仅在Scell上传送。
一旦PDCCH包括表示所调度的当前或者后续上行链路-下行链路比率配置的信息,则eNodeB 202配置成按照预定时间周期来传送包括这种PDCCH的无线电帧(框506)。在一个实施例中,传输包括对eNodeB 202所服务的所有UE 210广播。UE 210配置成在每个预定时间周期监测来自eNodeB 202的传输,以检测在无线电帧的第一子帧的PDCCH区域中的、以DU-RNTI掩蔽的PDCCH。在检测到这种PDCCH时,由eNodeB 202所调度的当前或者后续上行链路-下行链路比率配置这时是UE 210已知的。UE 210相应地进行调整,以便与eNodeB 202传递上行链路和下行链路数据。
eNodeB 202对于每个预定时间周期重复框502-506(循环508)。在一个实施例中,预定时间周期包括无线电帧时间长度(例如10ms),以及以DU-RNTI掩蔽的PDCCH包含在各无线电帧的第一子帧中。因此,无线通信网络200内的每个eNodeB提供上行链路-下行链路配置的动态指示。与RRC信令-设置上行链路-下行链路配置(没有用于后续调整的选项)的传统方式-相比,这种方案提供少的等待时间和高灵活性以适应变化的业务情况。但是,如果用于这个PDCCH的控制信道元素(CCE)的聚合等级小,则在这个PDCCH的盲检测中存在低可靠性的可能性。这种低可靠性的可能性可通过增加用于这个PDCCH的CCE的聚合等级来改进。例如,CCE的聚合等级可设置为4或8。
图6A示出说明按照一些实施例、经由各无线电帧的第一子帧中的特殊PDCCH的上行链路-下行链路比率配置的动态指示的示例简图。图6A示出用于eNodeB 202的与第一载波频率206(F1)相关联的无线电帧600以及与第二载波频率208(F2)相关联的无线电帧602。在图6A中,无线电帧时间周期604包括预定时间周期。以DU-RNTI 606掩蔽的PDCCH分别包含在无线电帧600、602的至少一个无线电帧的第一子帧的每个中。例如,PDCCH 606采用指示配置4的信号来编码,以及图6A示出从现有配置3动态调整为配置4的无线电帧600、602。分别在无线电帧600、602的无线电帧的第一子帧的每个中包含的、以DU-RNTI 608掩蔽的PDCCH指示对于另一个无线电帧时间周期所确定的当前或者后续上行链路-下行链路配置。
在另一个实施例中,预定时间周期包括监测周期,所述监测周期是周期性的,并且它的时间长度大于无线电帧时间长度。举例来说,监测周期可以是420ms、7小时、14小时、7天、14天等。使用与无线电帧时间长度相比不太频繁的预定时间周期减少了UE 210所需的特殊PDCCH的监测量,由此降低UE 210的功耗。UE 210能够期待每个监测周期检测特殊PDCCH一次,以及eNodeB 202可按照至少监测周期在每个无线电帧的第一子帧(而不是在每个无线电帧)中传送特殊PDCCH。因此,上行链路-下行链路比率配置能够最多在每个监测周期调整一次。
可在RRC信令中提供监测周期。以下提供的是TDD-Config信息元素的一个示例部分,其中字段“monitoringPeriod”字段能够是被添加以指定监测周期的一个RRC信令。
其中,atp0表示没有调整(例如,不改变上行链路和下行链路比率配置),atp1表示420ms调整周期,atp2表示7小时调整周期,atp3表示14小时调整周期,atpm表示14天调整周期,等等。
图6B示出说明按照一些实施例、按照监测周期经由各无线电帧的第一子帧中的特殊PDCCH的上行链路-下行链路比率配置的半静态指示的示例简图。图6B示出用于eNodeB202的与第一载波频率206(F1)相关联的无线电帧610以及与第二载波频率208(F2)相关联的无线电帧612。在图6B中,监测周期614包括预定时间周期。以DU-RNTI 616掩蔽的PDCCH分别包含在无线电帧610、612的无线电帧的第一子帧的每个中。例如,PDCCH 616采用指示配置4的信号来编码,以及图6B示出从现有配置3半静态调整为配置4的无线电帧610、612。分别在无线电帧610、612的无线电帧的第一子帧的每个中包含的、以DU-RNTI 618掩蔽的PDCCH指示对于另一个监测周期所确定的当前或者后续上行链路-下行链路配置。
在又一个实施例中,预定时间周期包括调整周期,调整周期比无线电帧时间长度要长,并且可以是周期性的或者非周期性的。换言之,调整周期可以是临时设置的。考虑用于所支持的上行链路-下行链路配置的完整HARQ过程传输和重传的不同数量-例如,对于配置1到5是20ms,对于配置0是70ms,对于配置6是60ms-调整周期可以至少是20ms、70ms或60ms的整数倍,诸如420秒、7小时、14小时、14天等等。
eNodeB 202能够配置成在需要时,通过在调整周期开始之前在RRC信令中指定调整周期(使得UE 210会知道何时监测无线电帧以检测特殊PDCCH),然后按照调整周期在至少一个无线电帧的第一子帧中提供特殊PDCCH,来调整各载波频率中的上行链路-下行链路配置。以下提供的是TDD-Config信息元素的一个示例部分,其中字段“subframeReassignmentPeriod”能够是被添加以指定调整周期的一个RRC信令。
其中,atp0表示没有调整(例如,不改变上行链路和下行链路比率配置),atp1表示420秒调整周期,atp2表示7小时调整周期,atp3表示14小时调整周期,atpm表示14天调整周期,等等。
图6C示出说明按照一些实施例、按照调整周期经由各无线电帧的第一子帧中的特殊PDCCH的半静态指示的上行链路-下行链路比率配置的示例简图。图6C示出用于eNodeB202的与第一载波频率206(F1)相关联的无线电帧620以及与第二载波频率208(F2)相关联的无线电帧622。在图6C中,调整周期624包括预定时间周期。以DU-RNTI 626掩蔽的PDCCH分别包含在无线电帧620、622的无线电帧的第一子帧的每个中。例如,PDCCH 626采用指示配置4的信号来编码,以及图6C示出从现有配置3半静态调整为配置4的无线电帧620、622。分别在无线电帧620、622的无线电帧的第一子帧的每个中包含的、以DU-RNTI 628掩蔽的PDCCH指示对于另一个调整周期所确定的当前或者后续上行链路-下行链路配置。
因此,公开了一种用于LTE-TDD网络内的每个eNodeB的上行链路-下行链路比率配置的灵活调整的编码方案。每个eNodeB按照预定时间周期来确定该eNodeB所服务的各载波频率的当前或者后续上行链路-下行链路配置,其中,这种配置可以与eNodeB的现有的正工作的上行链路-下行链路配置相同或者不同。eNodeB则生成以DU-RNTI掩蔽的特殊PDCCH,该特殊PDCCH指示所确定的当前或者后续上行链路-下行链路配置。按照预定时间周期将这个特殊PDCCH包含在至少一个无线电帧的第一子帧中。指示由给定eNodeB服务的UE按照预定时间周期、经由例如RRC信令信息来监测特殊PDCCH。预定时间周期可包括无线电帧时间周期、周期性的并且比无线电帧时间周期要长的监测周期、或者周期性或非周期性的并且比无线电帧时间周期要长的调整周期。
术语“机器可读介质”、“计算机可读介质”等应当被认为包括单个介质或者多个介质(例如,集中或分布式数据库和/或关联高速缓存和服务器),所述介质存储一个或多个指令集。术语“机器可读介质”也应被视为包括能够存储、编码或承载供机器执行的指令集并且使机器执行本公开的方法的任何一个或多个的任何介质。因此,术语“机器可读介质”应被视为包括但不限于固态存储器、光和磁介质、以及载波信号。
应当理解,为了清楚起见,以上描述参照不同的功能单元或处理器来描述一些实施例。但是,显然可使用不同功能单元、处理器或域之间的功能性的任何适当分布,而不会有损于本发明的实施例。例如,示为要由分开的处理器或控制器执行的功能性可由同一处理器或控制器来执行。因此,提到特定功能单元仅应看作提到用于提供所述功能性的适当手段,而不是指示严格的逻辑或物理结构或组织。
虽然已经结合一些实施例描述了本发明,但是并不是要局限于本文所述的具体形式。本领域技术人员会知道,按照本发明,可组合所述实施例的各种特征。此外,应当理解,本领域技术人员可进行各种修改和变更,而没有背离本发明的精神和范围。
“公开的摘要”是为了符合要求摘要以允许读者迅速确定技术公开的性质的37C.F.R.§1.72(b)而提供的。要理解,提交它并不是要用于解释或限制权利要求的范围或含意。另外,在以上详细描述中能够看到,各种特征被组合到单个实施例中以便简化本公开。这种公开方法不是要被解释为反映了要求保护的实施例需要比各权利要求中明确记载的特征更多的特征的意图。相反,如以下权利要求所反映的,本发明主题在于少于单个公开实施例的全部特征。因此,以下权利要求由此结合到详细描述中,其中各权利要求本身代表一个独立的实施例。
Claims (10)
1.一种增强节点B(eNB)的设备,所述设备包括:
存储器;以及
处理电路,所述处理电路被配置成:
解码从相邻eNB接收的过载指示和第一上行链路/下行链路(UL/DL)配置;
响应于已解码的过载指示和第一UL/DL配置,适配用于至少一个用户设备(UE)的第二UL/DL配置;
在物理下行链路控制信道(PDCCH)的下行链路控制信息(DCI)中,编码所适配的第二UL/DL配置;
采用为发信号通知UL/DL配置而保留的无线电网络临时标识符(RNTI)来对用于所述PDCCH的循环冗余校验(CRC)进行加扰;以及
对所述PDCCH进行编码以用于传输到所述至少一个UE,
其中所述存储器被配置成存储所适配的第二UL/DL配置。
2.如权利要求1所述的设备,其中,所述处理电路还被配置成经由无线电资源控制(RRC)信息元素(IE)发信号通知所适配的第二UL/DL配置适用于的预定时间周期。
3.如权利要求1所述的设备,其中,所适配的第二UL/DL配置包含用于UL子帧、DL子帧和至少一个特殊子帧的相应的指示符,以及所述处理电路还被配置成:
进一步适配所适配的第二UL/DL配置,以将所适配的第二UL/DL配置的UL子帧指示符和至少一个特殊子帧指示符中的至少一个改变成进一步适配的第二UL/DL配置中的DL子帧指示符;
在另外的PDCCH的另外的DCI中,编码所述进一步适配的第二UL/DL配置;
采用为发信号通知所述UL/DL配置而保留的所述RNTI来对所述另外的PDCCH的另外的CRC进行加扰;以及
对所述另外的PDCCH进行编码以用于传输到所述至少一个UE,其中,所述存储器配置成存储所述进一步适配的第二UL/DL配置。
4.如权利要求3所述的设备,其中,所述至少一个UE包含第一UE和第二UE,以及所述处理电路被配置成对所述PDCCH进行编码以用于传输到所述第一UE和所述第二UE,并且对所述另外的PDCCH进行编码以用于传输到所述第一UE和所述第二UE。
5.如权利要求1所述的设备,其中,所述处理电路被配置成与所述相邻eNB交换涉及用户业务模式的系统/小区信息。
6.如权利要求5所述的设备,其中,涉及所述用户业务模式的所述系统/小区信息包含上行链路传输功率、下行链路传输功率或负荷信息中的至少一个。
7.如权利要求1所述的设备,其中,所述处理电路还被配置成经由无线电资源控制(RRC)信息元素(IE)发信号通知包含相应适配的UL/DL配置的连续PDCCH传输之间的时间量。
8.如权利要求1所述的设备,其中,所述至少一个UE包含多个UE,以及所述处理电路还被配置成对所述PDCCH进行编码以用于传输到所述多个UE。
9.一种用于为时分双工通信改变上行链路和下行链路子帧配置的方法,所述方法包括:
在基站(202)确定(502)用于预定时间周期的改变的上行链路和下行链路子帧配置(100);
生成(504)配置信息以用于要包含在至少无线电帧(600)的第一子帧中的物理下行链路控制信道PDCCH信息,所述PDCCH信息表示所确定的改变的上行链路和下行链路子帧配置;以及
传送(506)包含所述PDCCH信息的所述第一子帧。
10.一种用于增强节点B、即eNB(202)的方法,所述eNB被配置用于在时分双工TDD网络中操作,为至少一个用户设备、即UE(210)动态调整上行链路/下行链路、即UL/DL子帧配置,其特征在于:
解码从相邻eNB接收的负荷信息和第一UL/DL子帧配置;
响应于已解码的负荷信息和第一UL/DL子帧配置,适配用于所述至少一个UE(210)的第二UL/DL子帧配置;
在物理下行链路控制信道PDCCH的下行链路控制信息DCI中,编码所适配的第二UL/DL子帧配置;
采用为发信号通知UL/DL子帧配置而保留的无线电网络临时标识符RNTI来对用于所述PDCCH的循环冗余校验CRC进行掩蔽;以及
对所述PDCCH进行编码以用于传输到所述至少一个UE(210)。
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EP3364707A1 (en) | 2018-08-22 |
EP2695312B1 (en) | 2019-01-30 |
CN108200653A (zh) | 2018-06-22 |
US20180139689A1 (en) | 2018-05-17 |
EP3364707B1 (en) | 2020-04-01 |
EP2695312A1 (en) | 2014-02-12 |
ES2719843T3 (es) | 2019-07-16 |
US9794859B2 (en) | 2017-10-17 |
WO2012134580A1 (en) | 2012-10-04 |
CN103563272A (zh) | 2014-02-05 |
US10455482B2 (en) | 2019-10-22 |
US20140010213A1 (en) | 2014-01-09 |
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