CN103828275A - 在协调集合中的低功率节点(lpn)的资源组分的重新安排 - Google Patents
在协调集合中的低功率节点(lpn)的资源组分的重新安排 Download PDFInfo
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Abstract
公开了一种用于重新安排在本地协调集合中的低功率节点(LPN)的资源组分的方法。该方法可以包括本地宏节点从相邻宏节点接收用于相邻宏节点的物理资源的消隐的资源组分和安排的资源组分的资源图。本地宏节点可以与在本地协调集合内的至少一个低功率节点(LPN)分组在一起。相邻宏节点可以与在相邻协调集合内的至少一个LPN分组在一起。相邻宏节点可以在不同于本地协调集合的相邻协调集合内。本地宏节点可以在与相邻宏节点的消隐的资源组分相同的频域索引和相同的时域索引下使用资源图来重新安排用于在本地协调集合中的LPN的小区边缘资源组分。
Description
相关申请:
该申请要求享有2011年9月30日提交的美国临时专利申请(序列号No.61/542,086)的权益,并且其通过参考并入本文中,其中,代理人案号为P39951Z。
背景技术
无线移动通信技术使用各种标准和协议来在传输站与无线装置之间发射数据。一些无线装置通过使用与期望的数字调制方案相组合的正交频分复用(OPDM)来经由物理层进行通信。使用OFDM的标准和协议包括第三代移动通信合作计划(3GPP)长期演进技术(LTE)、电气和电子工程师协会(IEEE)802.16标准(例如,802.16e、802.16m)(其对于产业群一般地被通称为WiMAX(全球微波接入互操作性))以及IEEE802.11标准(其对于产业群一般地被通称为WiFi)。
在3GPP无线电接入网络(RAN)LTE系统中,传输站可以是演进的通用陆地无线电接入网络(E-UTRAN)节点B(也一般地被表示为演进的节点B、增强型节点B、e节点B或eNB)和无线电网络控制器(RNC)的组合,其与被称作用户装备(UE)的无线装置(例如,移动装置)通信。下行链路(DL)传输可以是从传输站(或e节点B)到无线装置(或UE)的通信,并且上行链路(UL)传输可以是从无线装置到传输站的通信。
在同构网络中,也称作宏节点的传输站可以将基本无线覆盖提供给小区中的无线装置。小区可以是无线装置可操作来与宏节点通信所在的区域。异构网络(HetNet)用来处理由于无线装置的增加的使用和功能而导致的在宏节点上的增加的通信量负载。HetNet可以包括用与较低功率节点(微-eNB、微微-eNB、毫微微-eNB或者家庭eNB [HeNB])的层相重叠的计划的高功率宏节点(或宏-eNB)的层,所述较低功率节点的层可以以较差计划的或甚至整个未协调的方式部署在宏节点的覆盖区域(小区)内。较低功率节点一般可以被称为“低功率节点”。宏节点可以用于基本覆盖,而低功率节点可以用来填充覆盖漏洞,以便改善在热点区中或在宏节点的覆盖区域之间的边界处的容量,并且改善建筑物结构阻碍信号传输的室内覆盖。
小区间干扰协调(ICIC)或增强型ICIC(eICIC)可以用于资源协调以减小在诸如宏节点和低功率节点的传输站(或节点)之间的干扰。在ICIC中,干扰节点(被称为攻击者节点)可以放弃对一些资源的使用以便使得能够进行在低功率节点(被称为受害者节点)与由来自攻击者节点的干扰影响的无线装置(被称为受害者装置)之间的控制和数据传输。诸如宏节点和/或较低功率节点(LPN)的传输站也可以与协调多点(CoMP)系统中的其它传输站分组在一起,在所述协调多点(CoMP)系统中,来自多个小区的传输站可以将信号发射到无线装置且从无线装置接收信号。
附图说明
根据结合附图的随后的详细描述,本公开内容的特征和优点将是明显的,所述附图通过举例一起图示了本公开内容的特征;并且,其中:
图1图示了根据示例的多个协调集合的示意图,所述多个协调集合均具有宏节点和低功率节点(LPN)以及用于每一个宏节点和LPN的物理资源;
图2图示了根据示例的用于物理资源块(PRB)的资源图;
图3图示了根据示例的无线电帧资源的框图;
图4图示了根据示例的具有宏节点和低功率节点(LPN)的多个协调集合以及对LPN重新安排物理资源的示意图;
图5描绘了根据示例的用于将本地宏节点的资源图发射到协调多点(CoMP)系统中的相邻宏节点的方法的流程图;
图6描绘了根据示例的用于重新安排在本地协调集合中的低功率节点(LPN)的资源组分的方法的流程图;
图7图示了根据示例的本地宏节点、低功率节点(LPN)、无线装置和相邻宏节点的框图;以及
图8图示了根据示例的无线装置的示意图。
现在将参考图示的示例性实施例,并且将在本文中使用特定的语言来对其进行描述。无论如何将理解的是,不由此意在限制本发明的范围。
具体实施方式
在公开并描述本发明之前,将理解的是,该发明不被限制为本文中公开的特别的结构、处理步骤或者材料,而延伸到如将由相关领域的普通技术人员辨别的其等同形式。也应当理解的是,本文中采用的术语仅用于描述特别的示例的目的,而不意在为进行限制。在不同的附图中的相同的参考数字表示相同的元素。在流程图和处理中提供的编号被提供来用于清楚地图示步骤和操作,且不必须指示特别的顺序或次序。
示例实施例
下面提供了技术实施例的初始概述,并接着稍后进一步详细地描述特定的技术实施例。该初始概要意在帮助读者更快地理解技术,而不意在识别该技术的关键特征或必要特征,也不意在限制所要求保护的主题的范围。
图1图示了带有高功率宏节点210A-C(例如,宏-eNB)的异构网络(HetNet),所述高功率宏节点210A-C具有与低功率节点(LPN)212A-C(例如,微-eNB、微微-eNB、毫微微-eNB、家庭eNB[HeNB]、远程无线电头端[RRH]或者中继节点)连接的回程通信链路214A-C。每一个宏节点可以向在指定的扇区202A-C中的无线装置进行发射。每一个宏节点和LPN可以被包含在协调集合(例如,协调多点(CoMP)群集200A-C)中。异构网络(HetNet)可以包括宏节点和至少一个低功率节点(LPN)。宏节点可以与协调集合(或CoMP群集)中的至少一个LPN分组在一起。宏节点可以为在协调集合中的LPN(或其它宏节点)提供小区间干扰协调(ICIC)、增强型ICIC(eICIC)或者协调多点(CoMP)传输。宏节点可以不提供用于在协调集合之外的LPN或其它宏节点的ICIC、eICIC或者CoMP。
HetNet可以用来特别地针对不均匀的用户或通信量分布优化性能,并且改善小区的每个单元区域的频谱效率。HetNet也可以显著地达到改善的总容量和小区边缘性能。增强型小区间干扰协调(eICIC)可以用来在HetNet中按资源各自的协调集合来协调在宏节点与LPN之间的资源,并且减小干扰。
例如,由于宏节点相对于LPN的高信号功率,在时分双工(TDD)配置中,由宏节点进行的无线电帧(或其它资源组分)的下行链路子帧的传输可能在基本上相同的载波频率上生成对由LPN进行的到无线装置的下行链路子帧传输的强干扰。当无线装置222A-C在小区范围204A-C内时,干扰可能相对于发射的信号最小,并且干扰可以用在LPN或无线装置处的干扰减轻处理来解决。当无线装置224A-C与在进一步远离LPN且不在小区范围内的静态或动态小区范围扩展(CRE)地区206A-C中的LPN进行通信时,干扰可能更大。干扰可能妨碍无线装置在没有显著错误的情况下解调和/或解码下行链路子帧。
在另一个示例中,干扰可能妨碍LPN正确地解调和/或解码来自无线装置的上行链路传输的上行链路子帧。虽然描述了与子帧有关的干扰,但是诸如无线电帧、无线电子帧、时间片、频率载波、频率子载波、物理资源块(PRB)的任何类型的资源组分也可能经历干扰,尤其是在非对称TDD配置中。为了减轻由宏节点对在CRE地区中的无线装置以及对与CRE地区无线装置进行通信的LPN进行的干扰,当LPN正与在CRE地区中的无线装置进行通信时,宏节点可以在资源组分(例如,子帧)期间对传输进行静噪。资源组分(例如,物理资源组分)可以与时间间隔和频率载波或子载波相关联。资源组分可以包括无线电帧、无线电子帧、时间片、频率载波、频率子载波或者物理资源块(PRB)。用于资源组分的静噪的传输可以被称为消隐的资源组分。可用于传输的资源组分可以被称为安排的资源组分。静噪传输以及使用消隐的资源组分和安排的资源组分可以用在动态点选定/动态点消隐(DPS/DPB)CoMP处理中。
根据通信量状况,DPS/DPB允许从宏节点到在协调集合(例如,CoMP群集)中的LPN的通信量的动态卸载。在DPS/DPB中卸载的通信量可以通过服务点的自适应重新选定(例如,从宏节点(或宏层)到LPN(或低功率层))以及施加资源消隐(例如,在宏节点或宏层上)以抑制干扰来达到。DPS/DPB可以是对半静态CRE处理和时域eICIC处理的动态延伸。可以针对在一个协调集合(例如,CoMP群集)内的宏节点和LPN以集中方式同时进行用于DPS/DPB的安排。
在相邻协调集合中的相邻宏节点也可以生成对在本地协调集合中的LPN和无线装置的干扰。包括消隐的资源组分的时间表的资源图可以由相邻宏节点生成并被发射到本地宏节点。本地宏节点可以基于来自相邻宏节点的资源图重新安排与在LPN和CRE地区中的无线装置(和受来自相邻协调集合中的节点的干扰不利地影响的其它无线装置)之间的传输相关联的资源组分。针对在本地协调集合中的LPN在本地宏节点处重新安排资源组分可以减轻来自相邻协调集合的干扰的影响。
下面提供了示例的附加细节。图1图示了多个协调集合200A-C的示意图,所述多个协调集合200A-C均具有宏节点210A-C和低功率节点(LPN)212A-C以及用于每一个宏节点和LPN的物理资源。图1可以表示采用DPS/DPB的CoMP系统,其可以包括至少三种类型的不同用户。不同类型的用户可以包括以非CoMP模式服务的宏用户220A-C、以非CoMP模式服务的微微用户222A-C以及以带有自适应微微点选定和宏节点消隐的DPS/DPB CoMP模式服务的微微用户224A-C。
宏用户220A-C可以是与宏节点直接通信的无线装置(即,不从LPN接收数据传输)。非CoMP模式可以指的是在与LPN的资源组分相同的频域索引和相同的时域索引处安排宏节点的资源组分。
宏用户的用于宏节点210A-C中的每一个宏节点的资源组分10-19的时间表230A-C可以包括安排的资源组分252(以非CoMP模式)和消隐的资源组分250(用于以DPS/DPB CoMP模式消隐的宏节点)。在非CoMP模式下的微微用户222A-C可以是在与LPN通信的小区范围204A-C内的无线装置。在DPS/DPB CoMP模式下的微微用户224A-C可以是在与LPN通信的CRE地区206A-C内的无线装置。
非CoMP模式可以指的是在与宏节点的资源组分相同的频域索引和相同的时域索引处安排LPN的资源组分。DPS/DPB CoMP模式可以指的是在与宏节点的消隐的资源组分(例如,静噪的传输)相同的频域索引和相同的时域索引处安排LPN的资源组分。
微微用户的用于LPN 212A-C中的每一个LPN的资源组分10-19的时间表232A-C可以包括非CoMP模式安排的资源组分256和DPS/DPB CoMP模式安排的资源组分254(例如,小区边缘资源组分)。DPS/DPB CoMP模式安排的资源组分可以包括用于在非CoMP模式和DPS/DPB CoMP模式两者下的微微用户的资源组分。宏用户和微微用户可以被安排在协调集合内。可以在与小区边缘资源组分(例如,用于在DPS/DPB模式下的微微用户的资源组分)相同的频域索引和相同的时域索引处安排宏节点的消隐的资源组分。
为了说明和参考的目的,宏节点可以被称为本地宏节点210A。本地宏节点可以与在被称为本地协调集合200A的相同的协调集合内的本地LPN 212A相关联。在本地协调集合外部的宏节点可以被称为相邻宏节点210B-C。在本地协调集合外部的LPN可以被称为相邻LPN 212B-C。本地协调集合可以不同于相邻协调集合200B-C。宏节点资源组分230A-C相对于LPN资源组分232A-C的安排和协调可以针对每一个协调集合200A-C分开地执行。
在图1所示的示例中,包括用于每一个协调集合的宏节点资源组分230A-C和LPN资源组分232A-C的安排信息(例如,资源图)可以不同于其它协调集合的安排信息。DPS/DPB CoMP系统可以通过动态用户重新关联到微微层(例如,LPN)来从宏层(例如,宏节点)卸载通信量,并且使用资源消隐以抑制来自相同的协调集合(例如,CoMP群集)的宏层的干扰。来自相邻协调集合的宏层的干扰由于在协调集合之间的独立的安排决定而可能不被抑制。
为了减小来自相邻协调集合中的相邻宏节点的干扰,本地宏节点的安排信息可以在将资源组分传输到无线装置之前经由诸如X2接口的回程通信链路(图4的216)与相邻宏节点的安排信息交换。回程通信链路可以连接在不同的协调集合中的宏节点之间。可替换地,回程通信链路可以在本地协调集合的任何节点与相邻协调集合的任何节点之间。诸如资源图的安排信息的交换针对在微微层上的CoMP用户增加了安排决定的鲁棒性。
例如,在每一个协调集合的宏层上的安排信息230A-C可以以资源图的形式进行编码。资源图可以包括数据结构,诸如:位阵列、位图、位组、位串、数据阵列、列表、串、表格以及这些数据结构的组合。
在示例中,如图2所示,资源图包括位图,并且每一个资源组分由位表示。可以与相邻协调集合交换该位图。该位图的每一个元素(例如,位420A-C和420N)可以指示诸如用于消隐的资源组分的数字值“0”和用于安排的资源组分的数字值“1”的安排决定。资源组分可以是在无线电帧中的每一个时间片400A-B和410M的每一个PRB 410A-C、410N、412A-C、412N、414A-C和414N。消隐的资源组分(或基本上消隐的资源组分)和安排的资源组分可以包括无线电帧、无线电子帧、时间片、频率载波、频率子载波、物理资源快(PRB)或这些资源组分的组合。
在一个示例中,如图3所示,资源组分可以表示使用普通长期演进(LTE)帧结构在节点或传输站(或eNodeB)与无线装置(或UE)之间的下行链路传输或上行链路传输中的物理(PHY)层上发射的无线电帧结构的元素。尽管图示了LTE帧结构,但是也可以使用用于IEEE802.16标准(WiMax)、IEEE802.11标准(WiFi)或者使用OFDM的另一种类型的通信标准的帧结构。上行链路传输可以具有用在将上行链路信息从无线装置发射到节点中的与下行链路传输类似的帧结构。
图3图示了下行链路无线电帧结构类型2。在示例中,用来发射数据的信号的无线电帧100可以被配置为具有10毫秒(ms)的持续时间Tf。每一个无线电帧可以被分段或划分为10个子帧110i,每一个子帧110i均是1ms长。每一个子帧可以被进一步再分为两个时间片120a和120b,每一个时间片具有0.5ms的持续时间T时间片。由发射站和接收站使用的用于组分载波(CC)的每一个时间片可以基于CC频率带宽包括多个资源块(RB)130a、130b、130i、130m和130n。CC可以具有载波频率,所述载波频率具有带宽和中心频率。每一个RB(物理RB或PRB)130i可以包括12-15kHz子载波136(在频率轴上)以及每个子载波的6或7个正交频分复用(OFDM)符号132(在时间轴上)。如果采用了短的或正常的循环前缀,则RB可以使用七个OFDM符号。如果使用了扩展的循环前缀,则RB可以使用六个OFDM符号。可以通过使用短的或正常的循环前缀来将资源块映射到84个资源元素(RE)140i,或者可以通过使用扩展的循环前缀来将资源块映射到72个RE(未示出)。RE可以是一个OFDM符号142乘一个子载波(即,15kHz)146的单位。每一个RE在正交相移键控(QPSK)调制的情况下可以发射信息的两位150a和150b。可以使用其它类型的调制,诸如:用来在每一个RE中发射更大数量的位的16正交幅度调制(QAM)或64QAM、或者用来在每一个RE中发射更小数量的位(单个位)的二进制相移键控(BPSK)调制。RB可以被配置为用于从eNodeB到UE的下行链路传输,或者RB可以被配置为用于从UE到eNodeB的上行链路传输。
图4图示了基于从相邻宏节点210B-C接收到的资源图230B-C重新安排用于LPN的组分资源。基于从相邻宏节点接收到的资源图和在宏层上的本地宏节点210A的安排信息230A,可以识别用于每一个资源的干扰保护级别。资源图可以经由回程链路216由本地宏节点接收。因为资源组分10、17和18是用于本地宏节点和相邻宏节点的消隐的资源组分,消隐的资源组分10、17和18可以具有高干扰保护级别,其可以用来在具有对于相邻宏节点的干扰灵敏度的情况下安排微微用户(包括在DPS/DPB CoMP模式下的微微用户)。干扰保护级别以及用户性能对来自相邻协调集合的宏层干扰的灵敏度可以用来改善在微微层上的安排决定,因此提供了在CoMP DPS/DPB用户(例如,在DPS/DPB模式下的微微用户)的性能针对相邻节点干扰中的附加的鲁棒性。在一个示例中,可以通过比较不同的节点针对指定的准则的信号干扰的参考信号(RS)测量(例如,参考信号接收功率(RSRP)、参考信号接收质量(RSRQ)或者RSRP和RSRQ的组合)来获得用户性能的灵敏度。也可以执行其它类型的灵敏度测量。
例如,在CoMP群集A 200A中,在资源组分位置12处的小区边缘资源组分(例如,DPS/DPB CoMP模式安排的资源组分)可以被重新安排到资源组分位置10,以增加用于在DPS/DPB CoMP模式下的微微用户的干扰保护级别。在资源组分位置10中的非CoMP模式安排的资源组分(由小区边缘资源组分取代)可以被重新安排240到资源组分位置12。所以有效地,小区边缘资源组分与非CoMP模式安排的资源组分交换资源组分位置,其可以不那么受相邻宏节点干扰或者相邻协调集合中的节点影响。
同样地,在资源组分位置15处的小区边缘资源组分可以被重新安排242并与在资源组分位置17中的非CoMP模式安排的资源组分交换。现有的在332A的高干扰保护级别位置18中的小区边缘资源组分可以保持,而不重新安排。在具有CoMP群集B 200B的示例中,在资源组分位置19处的小区边缘资源组分可以被重新安排246并与在资源组分位置18中的非CoMP模式安排的资源组分交换。在具有CoMP群集C 200C的示例中,在资源组分位置16处的小区边缘资源组分可以被重新安排244并与在资源组分位置17中的非CoMP模式安排的资源组分交换。
在协调集合(例如,CoMP群集)之间交换的安排信息可以提供在相邻协调集合之间安排协调的协调集合,所以,CoMP用户可以被重新安排到具有高干扰保护的组分资源,其中,对不同的CoMP群集的消隐决定是相同的。
HetNet(和同构网络)可以包括宏节点210A-C的有规律(计划的)放置,所述宏节点210A-C通常可以在例如大约5瓦(W)到40W的高功率级别下进行发射以覆盖宏扇区202A-C。HetNet可以与低功率节点(LPN)212A-C重叠,所述低功率节点(LPN)212A-C可以在诸如大约100毫瓦(mW)到2W的基本上较低功率级别下进行发射。
如图5中的流程图所示,另一个示例提供了用于将本地宏节点的资源图发射到在协调多点(CoMP)系统中的相邻宏节点的方法。该方法包括如在块510中的生成用于本地宏节点的物理资源的消隐的资源组分和安排的资源组分的资源图的操作。如在块520中跟随着,将资源图从本地宏节点发射到相邻宏节点的操作,其中,相邻宏节点在不同于本地协调集合的相邻协调集合内。
本地宏节点可以与本地协调集合内的至少一个低功率节点(LPN)分组在一起。该方法可以进一步包括本地宏节点针对与用于本地协调集合中的LPN的小区边缘资源组分相同的频域索引和相同的时域索引来安排用于本地宏节点的消隐的资源组分。在另一个实施例中,该方法可以进一步包括相邻宏节点通过使用资源图来在与本地宏节点的消隐的资源组分相同的频域索引和相同的时域索引下重新安排用于在相邻协调集合中的LPN的小区边缘资源组分。相邻宏节点可以与在相邻协调集合内的至少一个LPN分组在一起。资源图可以包括位阵列、位图、位组、位串、数据阵列、列表、串、表格或者这些数据结构的组合。消隐的资源组分和安排的资源组分可以包括无线电帧、无线电子帧、时间片、频率载波、频率子载波、物理资源快(PRB)以及这些资源组分的组合。将资源图从本地宏节点发射到相邻宏节点的操作可以包括经由有线连接、无线连接或光纤连接的X2信令或回程链路信令。
如图6中的流程图所示,另一个示例提供了用于重新安排在本地协调集合中的低功率节点(LPN)的资源组分的方法600。该方法包括如在块610中的在本地宏节点处从相邻宏节点接收用于相邻宏节点的物理资源的消隐的资源组分和安排的资源组分的资源图的操作,其中,相邻宏节点在不同于本地协调集合的相邻协调集合内。如在块620中跟随了,由本地宏节点在与相邻宏节点的消隐的资源组分相同的频域索引和相同的时域索引下使用资源图来重新安排用于在本地协调集合中的LPN的小区边缘资源组分的操作。
本地宏节点与本地协调集合内的至少一个低功率节点(LPN)分组在一起,并且相邻宏节点与相邻协调集合内的至少一个LPN分组在一起。该方法可以进一步包括宏节点从本地协调集合内的LPN或直接从无线装置接收在LPN的小区边缘内的无线装置上的信号干扰的参考信号(RS)测量。RS测量可以包括来自相邻宏节点的安排的资源组分的信号干扰。重新安排用于在本地协调集合中的LPN的小区边缘资源组分的操作可以进一步包括当RS测量满足指定的准则时重新安排用于在本地协调集合中的LPN的小区边缘资源组分。RS测量可以包括参考信号接收功率(RSRP)、参考信号接收质量(RSRQ)以及这些RS测量的组合。
在另一个实施例中,该方法可以进一步包括相邻宏节点在与本地宏节点的消隐的资源组分相同的频域索引和相同的时域索引下使用资源图来重新安排用于在相邻协调集合中的LPN的小区边缘资源组分。相邻宏节点可以与相邻协调集合内的至少一个LPN分组在一起。资源图可以包括位图,并且每一个资源组分可以由位表示。在另一个实施例中,资源图可以包括位阵列、位图、位组、位串、数据阵列、列表、串、表格或者这些数据结构的组合。消隐的资源组分和安排的资源组分可以包括无线电帧、无线电子帧、时间片、频率载波、频率子载波、物理资源块(PRB)以及这些资源组分的组合。将资源图从本地宏节点发射到相邻宏节点的操作可以包括经由有线连接、无线连接或光纤连接的X2信令或回程链路信令。
图7图示了在异构网络(HetNet)中的示例节点和示例无线装置720。节点可以包括宏节点(例如,宏eNB)或低功率节点730(例如,微eNB、微微eNB、毫微微eNB或HeNB)。宏节点可以包括本地宏节点710A和相邻宏节点710B。本地宏节点可以具有包括至少一个低功率节点(LPN)的本地协调集合。相邻宏节点可以具有包括至少一个LPN(未示出)的相邻协调集合。
每一个宏节点可以包括相邻协调模块714A和714B、调度器716A和716B、LPN协调模块718A和718B、无线收发器712A和712B以及处理模块或处理器708A和708B。相邻协调模块714A和714B可以被配置为经由回程链路750向在不同于本地协调集合740A的相邻协调集合内的相邻宏节点710B传送资源图。资源图可以包括用于宏节点的物理资源的消隐的资源组分和安排的资源组分。
调度器716A和716B可以被配置为安排用于宏节点和LPN的资源组分,并且基于从相邻宏节点接收到的资源图重新安排用于在本地协调集合中的LPN的边缘资源组分。LPN协调模块718A和718B可以被配置为向在协调集合内的至少一个LPN传送协调集合信息。针对具有与宏节点协调的信令的至少一个LPN,协调集合信息可以包括消隐的资源组分、安排的资源组分或者资源图。可以经由回程链路752将协调集合信息从宏节点710A中的LPN协调模块718A发射到LPN 730中的宏节点协调模块734。
回程链路750和752可以包括经由有线连接、无线连接或光纤连接的X2信令或回程链路信令。无线收发器712A和712B可以被配置为与无线装置通信并从无线装置接收参考信号(RS)测量。处理模块或处理器708A和708B可以被配置为用于实现小区间干扰协调(ICIC)、增强型小区间干扰协调(eICIC)、协调多点(CoMP)或者用于协调集合中的或在协调集合之间的节点的这些HetNet干扰协调处理的组合。
LPN 730可以包括无线收发器732和宏节点协调模块734。LPN的无线收发器可以被配置为将协调集合信息发射到无线装置且将请求发射到HetNet中的无线装置以将指定的参考信号(RS)偏置施加至从LPN RS导出的LPN RS测量,所述LPN RS是从协调集合中的至少一个LPN接收的。对于具有与宏节点的协调的信令的至少一个LPN,协调集合信息可以包括用于LPN标识符所述。宏节点协调模块可以被配置为经由回程链路752向宏节点传送协调集合信息。
无线装置720(例如,UE)可以与本地宏节点710A或LPN 730通信且从相邻宏节点710B接收干扰。在示例中,宏节点的可用传输功率可以是LPN的可用传输功率的至少十倍。无线装置可以包括收发器722。无线装置的收发器可以被配置为从节点接收DL传输信息,并且将UL传输信息发射到节点。UL传输信息可以包括RS测量,所述RS测量包括RSRP或RSRQ。
图8提供了诸如用户装备(UE)、移动站(MS)、移动无线装置、移动通信装置、平板、手机、或者其它类型的移动无线装置的无线装置的示例图解。无线装置可以包括配置为与节点、宏节点、低功率节点(LPN)或者传输站通信的一个或多个天线,所述传输站诸如是:基站(BS)、演进的节点B(eNB)、基带单元(BBU)、远程无线电头(RRH)、远程无线电装备(RRE)、中继站(RS)、无线电装备(RE)或者其它类型的无线宽域网(WWAN)接入点。无线装置可以被配置为通过使用至少一种无线通信标准来进行通信,所述无线通信标准包括3GPP LTE、WiMAX、高速分组接入(HSPA)、蓝牙和WiFi。无线装置可以通过使用用于每一种无线通信标准的分开的天线或者用于多个无线通信标准的共享的天线来进行通信。无线装置可以在无线局域网(WLAN)、无线个域网(WPAN)和/或WWAN中进行通信。
图8也提供了可以用于从无线装置的音频输入和输出的麦克风和一个或多个扬声器的图解。显示屏可以是液晶显示(LCD)屏或者诸如有机发光二极管(OLED)显示器的其它类型的显示屏。显示屏可以被配置为触摸屏。触摸屏可以使用电容性、电阻性或另一种类型的触摸屏技术。应用处理器和图形处理器可以耦合至内部存储器以提供处理和显示能力。非易失性存储器端口也可以用来向用户提供数据输入/输出选项。非易失性存储器端口也可以用来扩展无线装置的存储器能力。键盘可以与无线装置集成或无线地连接到无线装置以提供附加的用户输入。也可以通过使用触摸屏来提供虚拟键盘。
在高干扰保护的情况下重新安排组分资源可以减轻由相邻协调集合中的相邻宏节点进行的干扰的影响,并且提高了HetNet和CoMP系统的效率。
各种技术或者其特定的方面或部分可以采取在有形的介质中体现的程序代码(即指令)的形式,所述有形的介质诸如是:软盘、CD-ROM、硬盘驱动器、非瞬态计算机可读存储媒介或者任何其它的机器可读存储媒介,其中,当程序代码被加载到机器(诸如计算机)中并由该机器执行时,该机器变成用于实践各种技术的设备。在可编程计算机上执行程序代码的情况下,计算装置可以包括处理器、由处理器可读的存储媒介(包括易失性和非易失性存储器和/或存储元件)、至少一个输入装置以及至少一个输出装置。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、光驱动器、磁硬盘驱动器或者用于存储电子数据的其它媒介。基站和无线装置也可以包括收发器模块、计数器模块、处理模块和/或时钟模块或计时器模块。可以实现或利用本文中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)、可重复使用的控制器等等。这样的程序可以以高级过程或面向对象编程语言来实现以与计算机系统通信。然而,如果需要,一个或多个程序可以以汇编或机器语言来实现。在任何情况下,该语言可以是已编译或已解释语言,并且与硬件实现相组合。
应当理解的是,在该说明书中描述的功能单元中的许多功能单元已经被标注为模块,以便更特别地强调它们的实现独立性。例如,模块可以被实现为包括定制VLSI电路或门阵列的硬件电路,诸如逻辑芯片、晶体管或其它分立组件的现成的半导体器件。模块也可以在诸如现场可编程门阵列、可编程阵列逻辑、可编程逻辑器件等等的可编程硬件装置中实现。
模块也可以在软件中实现以供各种类型的处理器执行。可执行代码的所识别的模块可以例如包括计算机指令的一个或多个物理或逻辑块,其可以例如被组织为对象、过程或函数。尽管如此,所识别的模块的可执行文件不需要物理地位于一起,而可以包括存储在不同位置中的不同的指令,所述不同的指令当逻辑地结合在一起时包括该模块并针对该模块达到表明的目的。
当然,可执行代码的模块可以是单个指令或者许多指令,并且甚至可以分布在若干不同的代码段上、在不同的程序之间以及跨越若干存储器装置。类似地,操作数据在本文中可以在模块内被识别并图示,并且可以以任何合适的形式体现并被组织在任何合适类型的数据结构内。操作数据可以被收集为单个数据集合,或者可以分布在包括在不同的储存装置上的不同位置上,并且可以至少部分地仅作为在系统或网络上的电子信号而存在。模块可以是无源或有源的,包括可操作来执行期望的功能的代理。
遍及该说明书参考“示例”意味着结合示例描述的特别的特征、结构或特性被包含在本发明的至少一个实施例中。因此,在遍及该说明书的各个地方出现的短语“在示例中”不必都指的是相同的实施例。
如本文中使用的,为了方便可以在共同的列表中呈现多个项目、结构元素、成分元素和/或材料。然而,应当就如该列表的每一个成员被个别地识别为单独且唯一的成员一样来解释这些列表。因此,在没有相反的指示的情况下,这样的列表的个别成员不应当仅基于它们在共同的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形式。此外,在本文中可以与用于本发明的各种实施例和示例的各种组分的替换一起参考本发明的各种实施例和示例。理解的是,这样的实施例、示例和替换将不被解释为彼此的事实上的等同形式,但将被解释为本发明的单独的且自主的表示。
此外,所描述的特征、结构或特性可以以任何合适的方式被组合在一个或多个实施例中。在下面的描述中,提供了许多具体细节(诸如布局的示例、距离、网络示例等等)以提供对本发明的实施例的透彻理解。然而,相关领域的技术人员将认识到本发明可以在没有具体细节中的一个或多个具体细节的情况下或用其他方法、组分、布局等等来实践。在其它情况下,没有详细示出或描述公知的结构、材料或操作以避免使本发明的方面模糊。
尽管前述的示例说明了在一个或多个特别的应用中的本发明的原理,但对于本领域普通技术人员将明显的是,在不运用发明才能且不脱离本发明的原理和概念的情况下,可以在形式、使用和实现的细节中做许多修改。因此,除了如由下面的权利要求叙述的以外,不意在限制本发明。
Claims (21)
1. 一种计算机程序产品,包括非瞬态计算机可读存储媒介,所述非瞬态计算机可读存储媒介在其中体现有计算机可读程序代码,所述计算机可读程序代码适于被执行以实现用于将本地宏节点的资源图发射到在协调多点(CoMP)系统中的相邻宏节点的方法,包括:
生成用于所述本地宏节点的物理资源的消隐的资源组分和安排的资源组分的资源图;以及
将所述资源图从所述本地宏节点发射到所述相邻宏节点,其中,所述相邻宏节点在不同于所述本地协调集合的相邻协调集合内。
2. 权利要求1所述的计算机程序产品,进一步包括在生成所述资源图以前:
针对与用于在所述本地协调集合中的LPN的小区边缘资源组分相同的频域索引和相同的时域索引来安排用于本地宏节点的所述消隐的资源组分。
3. 根据权利要求1和2中的一项权利要求所述的计算机程序产品,进一步包括:
由所述相邻宏节点在与所述本地宏节点的消隐的资源组分相同的频域索引和相同的时域索引下使用所述资源图来重新安排用于在所述相邻协调集合中的LPN的小区边缘资源组分,其中,所述相邻宏节点与所述相邻协调集合内的至少一个LPN分组在一起。
4. 根据权利要求1至3中的一项权利要求所述的计算机程序产品,其中,将所述资源图从所述本地宏节点发射到相邻宏节点包括经由有线连接、无线连接或光纤连接的X2信令或回程链路信令。
5. 一种计算机程序产品,包括非瞬态计算机可读存储媒介,所述非瞬态计算机可读存储媒介在其中体现有计算机可读程序代码,所述计算机可读程序代码适于被执行以实现用于重新安排在本地协调集合中的低功率节点(LPN)的资源组分的方法,包括:
在本地宏节点处从相邻宏节点接收用于所述相邻宏节点的物理资源的消隐的资源组分和安排的资源组分的资源图,其中,所述相邻宏节点在不同于所述本地协调集合的相邻协调集合内;以及
由所述本地宏节点在与所述相邻宏节点的消隐的资源组分相同的频域索引和相同的时域索引下使用所述资源图来重新安排用于在所述本地协调集合中的LPN的小区边缘资源组分。
6. 权利要求5所述的计算机程序产品,进一步包括:
在本地宏节点处从在所述本地协调集合内的LPN或直接从无线装置接收对在所述LPN的小区边缘内的所述无线装置的信号干扰的参考信号(RS)测量,包括来自所述相邻宏节点的安排的资源组分的信号干扰;以及
其中,重新安排用于在所述本地协调集合中的LPN的所述小区边缘资源组分进一步包括当所述RS测量满足指定的准则时重新安排用于在所述本地协调集合中的LPN的所述小区边缘资源组分。
7. 权利要求6所述的计算机程序产品,其中,所述RS测量选自包含参考信号接收功率(RSRP)、参考信号接收质量(RSRQ)以及其组合的组。
8. 根据权利要求5至7中的一项权利要求所述的计算机程序产品,其中,在本地宏节点处从相邻宏节点接收所述资源图包括经由有线连接、无线连接或光纤连接的X2信令或回程链路信令。
9. 根据权利要求1至8中的一项权利要求所述的计算机程序产品,其中,所述资源图包括位图,并且每一个资源组分由位表示。
10. 根据权利要求1至9中的一项权利要求所述的计算机程序产品,其中,所述资源图选自包含位阵列、位图、位组、位串、数据阵列、列表、串、表格以及其组合的组。
11. 根据权利要求1至10中的一项权利要求所述的计算机程序产品,其中,所述消隐的资源组分和所述安排的资源组分选自包含无线电帧、无线电子帧、时间片、频率载波、频率子载波或者物理资源块(PRB)以及其组合的组。
12. 根据权利要求1至11中的一项权利要求所述的计算机程序产品,其中,所述本地宏节点与在本地协调集合内的至少一个低功率节点(LPN)分组在一起。
13. 根据权利要求1至12中的一项权利要求所述的计算机程序产品,其中,所述相邻宏节点与在相邻协调集合内的至少一个LPN分组在一起。
14. 一种在异构网络(HetNet)中的宏节点,所述异构网络(HetNet)具有包括至少一个低功率节点(LPN)的本地协调集合,包括:
相邻协调模块,被配置为向在不同于所述本地协调集合的相邻协调集合内的相邻宏节点传送资源图,其中,所述资源图包括用于所述宏节点的物理资源的消隐的资源组分和安排的资源组分;以及
调度器,被配置为基于从所述相邻宏节点接收到的资源图重新安排用于在本地协调集合中的所述至少一个LPN的小区边缘资源组分。
15. 权利要求14所述的宏节点,进一步包括:
LPN协调模块,被配置为向在所述协调集合内的所述至少一个LPN传送协调集合信息,其中,对于具有与所述宏节点的协调的信令的所述至少一个LPN,所述协调集合信息包括所述消隐的资源组分、所述安排的资源组分以及所述资源图中的至少一个协调。
16. 根据权利要求14和15中的一项权利要求所述的宏节点,其中,所述与在所述协调集合内的所述至少一个LPN的通信以及与所述相邻宏节点的通信包括经由有线连接、无线连接或光纤连接的X2信令或回程链路信令。
17. 根据权利要求14至16中的一项权利要求所述的宏节点,其中,所述资源图选自包含位阵列、位图、位组、位串、数据阵列、列表、串、表格以及其组合的组。
18. 根据权利要求14至17中的一项权利要求所述的宏节点,其中,所述消隐的资源组分和所述安排的资源组分选自包含无线电帧、无线电子帧、时间片、频率载波、频率子载波或者物理资源块(PRB)以及其组合的组。
19. 根据权利要求14至18中的一项权利要求所述的宏节点,进一步包括:
无线收发器,被配置为与无线装置通信并且从所述无线装置接收参考信号(RS)测量,其中,所述无线装置包括带有天线的用户装备(UE)、触摸敏感显示屏、扬声器、麦克风、图形处理器、应用处理器、内部存储器、非易失性存储器端口或者其组合。
20. 根据权利要求14至19中的一项权利要求所述的宏节点,进一步包括:
处理模块,被配置为针对在所述协调集合中的所述节点实现小区间干扰协调(ICIC)、增强型小区间干扰协调(eICIC)、协调多点(CoMP)或者其组合。
21. 根据权利要求14至20中的一项权利要求所述的宏节点,其中,所述宏节点包括宏演进节点B(宏eNB),并且所述LPN包括微eNB、微微eNB、毫微微eNB或者家庭eNB(HeNB)。
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