CN104429150A - 用于实现设备到设备通信的方法和*** - Google Patents
用于实现设备到设备通信的方法和*** Download PDFInfo
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- CN104429150A CN104429150A CN201380035348.8A CN201380035348A CN104429150A CN 104429150 A CN104429150 A CN 104429150A CN 201380035348 A CN201380035348 A CN 201380035348A CN 104429150 A CN104429150 A CN 104429150A
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Abstract
诸如使用3GPP-LTE或LTE高级的用户设备(UE)的移动通信设备可以经过被称为设备到设备(D2D)通信的***而直接与另一UE进行通信。D2D通信会话的建立可以涉及使所述UE中的一个触发信令过程。具体地说,D2D资源重新分配方法可以用于按照完全由D2D对中的一个(被称为主UE或M-UE)控制的动态方式来优化D2D通信资源利用效率。M-UE可以被布置成基于在所述D2D通信会话中所述UE的缓冲器状态报告(BSR)来重新分配资源。M-UE可以进一步被布置成基于所述D2D通信会话的特性来动态地改变传输窗的配置。
Description
相关申请的交叉引用
本申请要求享有2012年8月3日提交的美国临时专利申请序列号61/679,627的优先权,该临时专利申请通过引用被全部并入本文。
技术领域
实施例涉及电子设备。更具体地说,一些实施例涉及移动电子设备。
背景技术
基于接近度的应用和服务代表可以对蜂窝无线/移动宽带技术的发展具有较大影响的快速增长的社交和技术趋势。这些服务基于两个设备或两个用户彼此接近的意识,并且因而可以能够在设备到设备(D2D)配置(也被称为LTE直接)中与彼此直接进行通信。基于接近度的应用包括社交联网、移动商业、广告、游戏等等。D2D通信对可能能够使用D2D来进行通信而不使基站或演进型节点B(eNB)超载的公共安全第一响应者也会是重要的。此外,D2D通信的使用可以导致从蜂窝网络卸载一些业务。期望具有一种在两个或更多个具有D2D能力的设备之间建立D2D通信会话的更有效的方法。
附图说明
在不一定按比例绘制的附图中,相似的数字可以在不同的视图中描述类似的部件。具有不同的字母后缀的相似的数字可以代表类似部件的不同实例。一些实施例作为示例而不是限制在附图中示出,其中:
图1是具有多个D2D连接的示例性网络;
图2是说明实施例的操作的图;
图3A到3D是在实施例中的示例性传输窗;以及
图4是说明能够执行实施例的示例性机器的方框图。
具体实施方式
下面的描述和附图充分说明了特定的实施例以使本领域中的技术人员能够实施它们。其它实施例可以合并结构、逻辑、电气、过程和其它改变。示例仅仅代表可能的变化。单独的部件和功能是可选的,除非被明确地要求,并且操作的顺序可以变化。一些实施例的部分和特征可以包括在其它实施例的部分和特征中或者代替其它实施例的部分和特征。在权利要求中阐述的实施例包括那些权利要求的所有可得到的等效形式。
在下面的详细描述中,阐述了很多特定的细节,以便提供对本发明的彻底理解。然而,本领域中的技术人员将理解,本发明可以在没有这些特定细节的情况下被实施。在其它实例中,没有详细地描述公知的方法、过程、部件和电路,以便不使本发明难于理解。
虽然本发明的实施例并不被限制在这一方面中,如在本文使用的术语“多个”和“复数个”可以包括例如“诸多”或“两个或更多个”。术语“多个”和“复数个”可以在整个说明书中用于描述两个或更多个部件、设备、元件、单元、参数等等。例如,“多个设备”可以包括两个或更多个设备。
第三代合作伙伴计划(3GPP)是在1998年12月建立以将被称为“组织伙伴”的多个电信标准机构集合在一起的合作协议,该多个电信标准机构目前包括无线工业与商业协会(ARIB)、电信工业解决方案联盟(ATIS)、中国通信标准协会(CCSA)、欧洲电信标准学会(ETSI)、电信技术协会(TTA)和电信技术委员会(TTC)。3GPP的建立在1998年12月通过“第三代合作伙伴计划协议”的签署而被正式化。
3GPP提供在全世界可应用的标准作为基于它们所支持的演进型GSM核心网络和无线接入技术(例如,用于频分双工(FDD)和时分双工(TDD)模式的通用陆地无线接入(UTRA))的第三代移动***的技术规范和技术报告。3GPP也提供全球移动通信***(GSM)的维护和发展的标准作为包括演进型无线接入技术(例如,通用分组无线服务(GPRS)和增强型数据速率GSM演进(EDGE))的技术规范和技术报告。与移动电话有关的当前标准的技术规范对于公众通常是从3GPP组织可得到的。
3GPP目前研究3G移动***的演进并且考虑专注于UTRA网络(UTRAN)的演进的贡献(观点和提议)。一组高级要求由3GPP研讨会识别出,该组高级要求包括每比特减少的成本、增加的服务提供(即,在较低成本下具有更好的质量的更多的服务)、现有和新频带的使用的灵活性、具有开放接口的简化体系结构和减少/合理的终端功率消耗。对于UTRA&UTRAN长期演进(UTRAN-LTE,也被称为3GPP-LTE和E-UTRA并且有时被简单地称为LTE)的研究开始于2004年12月,目的是发展3GPP无线接入技术朝向高数据速率、低时延和分组优化无线接入技术的演进的框架。该研究考虑对无线接口物理层(下行链路和上行链路)的修改,例如支持高达20MHz的灵活传输带宽的手段、新传输方案的引入和高级多天线技术。3GPP也正在开发LTE高级标准作为LTE的发展进步以提供甚至更高的吞吐量。
3GPP-LTE基于合并正交频分复用(OFDM)技术的无线接口。OFDM是使用大量紧密间隔开的正交子载波来承载相应的用户数据信道的数字多载波调制格式。此外,单载波频分多址(SC-FDMA)可以用在上行链路传输中。使用诸如正交幅度调制(QAM)的常规调制方案当与射频(RF)传输速率相比较时以(相对)低符号速率调制每一个子载波。
具有经由诸如LTE和LTE高级的蜂窝技术进行通信的能力的移动设备在许多国家已经变得非常普遍。这些设备可以包括智能电话、平板计算机、电子阅读器、移动热点等等。在传统上,这样的设备经由核心网络通信到其它设备。例如,数据在被路由到其最终目的地之前可以从移动设备经过演进型节点B(eNB)进行传播。然而,存在使设备彼此直接进行通信而不使用eNB的增加的期望。
在示例性情况中,具有移动设备的用户,或者用户设备(UE0),变得在物理上接近另一移动设备UE1。用户可能希望传送文件、玩游戏或以其它方式从UE0通信到UE1。在UE0和UE1之间的连接可以由应用自动发起,或者可以由用户发起。通过基本网络并且通过设备本身使UE0直接通信到UE1会是期望的。这样的连接具有几个益处。例如,较少的业务将经过eNB,允许eNB服务更多的设备。此外,因为UE0直接与相对极接近的UE1进行通信,UE0和UE1可以能够使用较低功率模式来进行这样的通信,导致功率节省和较长的电池寿命。
图1说明了组合设备到设备(“D2D”)网络与诸如LTE或LET高级网络的无线接入网络的示例性***。移动宽带网络100包括中央协调器,其在这里被说明为eNB 102。用户设备(UE)104和106经由LTE通信信道108与eNB 102进行通信。
在图1中还说明了D2D集群110、120、130、140和150。D2D集群110、120、130、140和150中的每一个包括能够与彼此直接进行通信而不需要经过eNB 102来进行通信的多个UE。本申请可以将具有D2D能力的UE称为dUE,以代表具有D2D能力的用户设备。在图1中,示出了D2D集群的几个不同的布局。应理解,D2D集群的其它配置也是可能的。还应理解,单个eNB可以支持比图1所示的多得多的D2D集群。
微微eNB 112耦合到eNB 102。耦合到微微eNB 112的是D2D集群110和120。在D2D集群110内是D2D协调器115和dUE 116和117。D2D协调器用来管理在dUE 116/117和微微eNB 112之间的通信。在D2D集群120内是D2D协调器125和dUE 126和127。也耦合到微微eNB 112的是UE122。UE 122不耦合到D2D集群110或120。UE 122可以具有或者可以不具有D2D能力。
dUE 116和117具有与彼此的D2D连接,其中在dUE 116和117之间的通信不需要涉及微微eNB 112或eNB 102。替代地,在dUE 116和dUE 117之间直接传输信息。这一设置提供了各种优点。例如,因为dUE 116和dUE117彼此紧密接近,它们不必将数据一直传输到eNB 102,因此,一个或两个设备可以使用低功率收发机模式,延长了dUE 116和dUE 117的电池寿命。此外,因为eNB 112和eNB 102在dUE 116和dUE 117之间的传输中未被涉及,eNB 102和微微eNB 112的有限带宽能力未被使用。如果dUE 116或dUE 117需要通信到eNB 102或微微eNB 112,则这样的通信可以经过D2D协调器115来发生。虽然图1说明了涉及D2D协调器的使用的几种情况,但是应理解,可以在没有任何D2D协调器的情况下直接在诸如eNB 102或微微eNB 112的eNB的控制下来执行在设备之间的通信。类似的配置存在于在dUE 126和dUE 127之间的D2D集群120中,除了在D2D集群120中没有D2D协调器以外。应理解,在D2D协调器115与dUE 116和117之间存在连接,它只是被从图1中省略。
D2D集群130包括D2D协调器135、dUE 136和dUE 137。在D2D集群130中,dUE 136和137可以与彼此并且与D2D控制器135直接进行通信。D2D协调器135用来控制在dUE 136和dUE 137之间的D2D连接。D2D 135也组织与dUE 136或dUE 137的多播/广播传输。如上所述,dUE136和137以及D2D协调器135通过使用与单个传统UE相同的空间来释放eNB 102的带宽。与D2D集群110和120不同,不存在耦合到D2D集群130的微微eNB。
D2D集群140包括微微eNB 141、dUE 142和143;D2D控制器145;以及dUE 146和147。dUE 142和143耦合到微微eNB 141,但是不耦合到任何其它UE。D2D协调器145也耦合到微微eNB 142。dUE 146和147在多跳配置中,只有dUE 146耦合到D2D控制器145。如果微微eNB想要将数据发送到dUE 146,它可以经过D2D协调器/控制器dUE 145发送数据。如果D2D控制器需要将信号发送到dUE 147,则信号首先被传输到dUE146。
D2D集群150包括在网状配置中耦合到彼此的dUE 152、154、156和158,dUE 152、154、156和158中的每一个如所说明地耦合到彼此。如果dUE需要将数据发送到它没有直接耦合到的dUE(例如dUE 152和156),则它可以经过它所连接到的dUE(例如dUE 154)来发送数据。如同在图1中说明的所有连接一样,D2D控制器不是必要的。
D2D通信的益处之一是将通常由eNB承载的业务移动或卸载到D2D连接的能力。将甚至更多的业务卸载到D2D连接的一种方式是将D2D连接的建立和维护中的一些从eNB移动到UE。
下面将讨论要经由D2D连接而进行连接的两个UE之间的假定连接。然而应理解,D2D连接不局限于两个UE;下面讨论的原理可以扩展到支持在D2D通信组中的多于两个D2D UE。
在两个UE之间的假定D2D连接中,UE中的一个可以用于建立D2D连接。使用UE中的一个来建立连接可以导致几个益处。例如,它使用某个数量的控制开销来监控各种UE的状态。使用UE来建立连接使用了UE的开销,而不是eNB的开销,这解放了eNB来执行其它任务。
典型地,当UE连接到网络时,它可以将关于其D2D能力的信息发送到eNB。这一信息可以包括其D2D配置文件和任何D2D限制。可选地,可以经过诸如用户的签约配置文件的其它手段来配置D2D配置文件和D2D限制信息,该用户的签约配置文件可以包含在归属位置寄存器(HLR)或某一其它网络实体中。此外,可以使用网络特定的D2D策略/限制来配置网络。这些策略/限制可以包括诸如地理限制、漫游限制、带宽策略等等的局限。
参照图2,提供了用于建立D2D连接的示例性方法。在下面的描述中,将在我们将称为UE0(250)和UE1(252)的两个UE之间建立连接。这一方法中的其它参与者可以包括eNB 254和移动性管理实体(MME)256以及D2D管理实体(DCME)258。
UE0250通过将消息发送到MME 256来发起建立过程(202)。这一消息可以是D2D建立/配对请求NAS(非接入层)消息。该消息可以包含目标UE(在这种情况下,UE1)的标识符。标识符可以是唯一地识别UE1的标识符,例如D2D ID或UE ID。D2D ID可以是在UE在附接过程期间报告用于D2D通信的其能力之后为每一个D2D UE分配的新定义的标识符。标识符也可以是另一唯一的标识符,例如移动用户综合业务数字网络号(MSISDN)、全球唯一临时标识符(GUTI)、临时移动用户标识符(TMSI)、国际移动用户标识符(IMSI)等等。UE0可能在发现阶段期间已经知道D2DIE或UE ID。可选地,UE0可能经由由eNB提供的D2D UE列表而知道目标UE的D2D ID或UE ID。在UE连接到eNB时,eNB可能经由由每一个UE发送的消息而编译了D2D UE列表。这一消息可以被从MME 256转发到DCME 258。
在下文中,MME或DCME在使能D2D模式(未在图2中示出)之前针对策略授权而核实策略计费和规则功能(PCRF)。如果在UE0和UE1之间的D2D连接不被允许,则请求被拒绝并且不进行连接(206)。可能存在由D2D通信管理实体(ECME)发送到UE0的D2D连接拒绝消息。这一消息可以基于配置文件/限制信息。
可选地,关于UE的D2D能力的诸如策略/限制的信息在核心网络侧会不是可用的也是可能的。在这样的情况下,目标UE(在这种情况下是UE1)能够决定是否接受来自UE0的D2D建立请求。
如果在UE0和UE1之间的D2D连接被允许或以其它方式未被禁止,则MME将D2D建立/配对请求消息转发到UE1(208)。该建立/配对请求消息可以包含D2D ID、UE ID或UE0的其它标识符。响应于建立/配对请求消息,UE1将确认消息发送到接受或拒绝D2D通信建立请求的MME(210)。换句话说,此时,UE1也具有拒绝D2D连接的选择。用户可以配置UE1以便仅接受来自某些UE的请求,拒绝所有D2D连接请求,等等。用户可能希望出于带宽节约原因、功率节省原因、私人原因或各种其它原因而这样做。如果UE1拒绝建立请求,则确认消息可以是D2D连接拒绝消息。D2D连接拒绝消息被转发到UE0,并且建立过程终止(212)。
在其中D2D连接被允许并且UE1接受连接的情况下,MME将一个或多个消息发送到eNB以向eNB通知在UE0和UE1之间的D2D连接的建立(214)。该消息可以包括经由S1应用协议(AP)发送的D2D建立请求消息。该消息还可以包括D2D ID、UE ID或者UE0和UE1二者的其它标识符、UE0和UE1的缓冲器状态报告(SR)、D2D连接的服务质量(QoS)要求等等。
在从MME接收到D2D建立请求消息之后,eNB经由RRC将D2DUE状态信息请求消息发送到UE0和UE1二者(216)。这一消息触发UE0和UE1以报告用于通过eNB进行的随后的D2D资源分配的各种信息。
在接收到上述消息之后,UE0和UE1二者使用D2DUE状态信息报告消息做出响应(218)。这些消息可以包含D2D相关信息,例如缓冲器状态报告(BSR)、天线配置、设备到设备链路质量测量报告、QoS要求等等。
eNB接着将D2D资源配置消息发送到UE0和UE1二者(220)。这一消息针对D2D通信而分配资源并且可以经由无线资源控制(RRC)信令或者通过动态物理下行链路控制信道(PDCCH)信令而被发送。可以基于来自UE0和UE1的包含在BSR中的信息、D2D链路质量测量、所请求的QoS水平等等来分配资源。
D2D资源配置消息也可以包含:资源块(RB)分配,其指示将在D2D通信中使用的RB索引;D2D资源间隔UL,其指示在两个连续D2D子帧之间的时间间隔;以及D2D资源配置持续时间,其指示将被分配到UE0和UE1的D2D资源的持续时间。D2D资源配置消息也可以将UE0或者UE1中的一个分配为主UE(M-UE)。在下文中,在UE0和UE1之间的D2D通信开始(222)。
RB分配在用于D2D通信的频域中指示RB索引,该RB索引通常用于由在D2D对中的UE进行的D2D通信。资源可以是正交的,以便最小化对经由蜂窝链路与eNB进行通信的其它UE的潜在的UE间干扰。
D2D资源间隔UL指代在两个连续的D2D子帧之间的时间间隔。这可以按照子帧的数量来表示。在LTE中,帧典型地在长度上是10毫秒(ms),并且每一个帧在长度上被分成1ms的十个子帧。因而,对于具有6的D2D资源间隔UL的资源分配可以相应于6个子帧或6ms。
D2D资源配置持续时间消息指示为D2D对分配的D2D资源的持续时间(以毫秒为单位)。
在通信期间,可以例如响应于改变D2D对的业务负载而由UE中被称为主UE(M-UE)的一个UE在D2D对内动态地重新分配资源。例如,针对从UE(S-UE)的传输/接收的D2D资源配置可以由M-UE改变。在下面参照图3A到3D来详述这一过程。此外,M-UE能够决定基于在UE0和UE1之间的D2D链路质量来动态地改变针对D2D对中的UE的调制和编码方案(MCS)。MCS可以用于基于在UE0和UE1之间的连接质量来确定数据传输的调制和编码速率。
M-UE可以由eNB在D2D资源配置消息中指定,如上所述。可选地,发起UE(在本例中的UE0)可以默认地变成M-UE。
可以由M-UE改变的一个变量是传输窗的尺寸和配置。这将参照图3A到3D进行解释。在D2D通信的上下文中,D2D下行链路(D-DL)指代从M-UE到S-UE的链路。D2D上行链路(D-UL)指代从S-UE到M-UE的链路。D2D传输窗315包括由M-UE发送的多个连续的D-DL子帧210和由S-UE发送的D-UL子帧。在图3A中,存在四个D-DL子帧,后面是四个D-UL子帧。被标记为M的子帧是D-DL子帧(由M-UE发送的子帧)。被标记为S的子帧是D-UL子帧(由S-UE发送的子帧)。
这些数字可以由M-UE动态地改变。例如,可以存在被称为时隙分配(TA)的信令字段,该信令字段可以用于指示在每一个传输窗内的切换点312(从D-DL到D-UL的改变)。例如在图3B中,传输窗325具有三个D-DL帧,接着切换点320出现,将TA从0改变到1,指示UE从D-DL切换到D-UL。类似地,在图3C中,传输窗335具有五个D-DL帧,接着切换点330出现,将TA从0改变到1,指示UE从D-DL切换到D-UL。
在图3D所示的可选实施例中,可以存在可变的传输窗尺寸。图3A到3C的实施例示出了每传输窗八个子帧(虽然应理解,在图3A到3C的固定传输窗尺寸实施例中,子帧的数量可以大于或小于八)。相反,图3D的实施例示出了可变传输窗尺寸。如在图3D中说明的,传输窗可以包括两个、三个或四个子帧(虽然未在图3D中示出,但是应理解,也可以使用多于四个子帧),从D-DL到D-UL的转变由TA从0切换到1来触发。在这样的实施例中,TA也可以布置成指示传输窗的尺寸。例如,在指示从D-DL到D-UL的转变应该发生之后,TA也可以指示待发送的D-UL帧的数量。
在图3D中,传输窗350包含两个子帧、D-DL子帧和D-UL子帧。传输窗360和365示出了包含三个子帧的两个可选的传输窗配置。在传输窗360中,存在两个D-DL子帧,后面是一个D-UL子帧。在传输窗365中,存在一个D-DL子帧,后面是两个D-UL子帧。传输窗370和375示出了包含四个子帧的两个可选的传输窗配置。传输窗370具有三个D-DL子帧,后面是一个D-UL子帧。传输窗375具有一个D-DL子帧,后面是三个D-UL子帧。应理解,也可以使用后面是一个或多个连续的D-UL子帧的一个或多个连续的D-DL子帧的其它组合,即使它们未在图3D中示出。
继续参照图2,继续在UE0和UE1之间的D2D连接的讨论。在建立D2D连接(见上文)之后,M-UE可以从eNB直接请求资源(224)。可以基于D2D对的BSR来做出这一请求。为了知道S-UE的BSR,S-UE可以周期性地将其BSR报告给M-UE。可以存在对于做出请求以动态地改变分配到D2D连接的资源的几个其它原因。例如,如上面讨论的,在UE0和UE1之间的业务可以不是对称的。也就是说,UE0可以将比UE1发送到UE0的数据更多的数据发送到UE1。在这样的情况下,UE0可能想要重新调整在UE0和UE1之间的传输窗的尺寸以便反映这样的非对称数据模式。
在接收到对额外资源的请求之后,eNB可以通过将新的D2D资源分配发送到UE0和UE1来拒绝这一请求或接受该请求(226)。按照这样的方式,eNB不必监控在UE0和UE1之间的D2D连接,然而仍然能够根据需要来改变资源分配。此外,eNB可以基于周期性地从M-UE接收的D2D链路质量反馈独自地将资源重新分配到D2D对,而没有对于额外资源的请求。
当期望终止D2D连接时,M-UE将D2D连接释放消息发送到eNB(228)。eNB接收该D2D连接释放消息,释放D2D连接,并且将D2D连接释放完成消息发送到UE0和UE1二者(230)。在下文中,先前用于D2D连接的资源自由地由其它设备使用。
本文描述的示例可以包括逻辑或多个部件、模块或机构或者可以在逻辑或多个部件、模块或机构上操作。模块是能够执行规定的操作并且可以按照某种方式进行配置或布置的有形实体(例如,硬件)。在示例中,电路可以用规定的方式被布置为模块(例如在内部或相对于诸如其他电路的外部实体)。在示例中,一个或多个计算机***(例如,独立的客户端或服务器计算机***)或者一个或多个硬件处理器的全部或部分可以由固件或软件(例如,指令、应用部分或应用)配置为操作以执行规定的操作的模块。在示例中,软件可以存在于机器可读介质上。在示例中,软件在由模块的基本硬件执行时使该硬件执行规定的操作。
因此,术语“模块”被理解为包括有形实体,是在物理上被构造、被特别配置(例如,硬连线)或被临时(例如,暂时)配置(例如,编程)来以规定的方式进行操作或者执行本文描述的任何操作的部分或全部的实体。考虑其中模块被临时配置的示例,每一个模块不需要在任一时刻被实例化。例如,在模块包括使用软件来配置的通用硬件处理器的场合,通用硬件处理器可以被配置为在不同时间的相应的不同模块。软件可以相应地配置硬件处理器,例如以便在同一时间构造特定的模块并且在不同的时间构造不同的模块。
图4是说明示例机器500的方框图,本文讨论的技术中的任意一个或多个可以在该示例机器500上执行。在可选实施例中,机器500可以作为独立设备操作或者可以连接(例如联网)到其它机器。在联网部署中,机器500可以在服务器-客户端网络环境中在服务器机器、客户端机器或这两者的容量中进行操作。在示例中,机器500可以在对等(P2P)(或其它分布式)网络环境中用作对等机器。机器500可以是个人计算机(PC)、平板PC、机顶盒(STB)、个人数字助理(PDA)、智能电话、网络电器、网络路由器、交换机或桥、专用导航设备、膝上型计算机、电视机或能够执行规定将由该机器采取的动作的指令(顺序的或以其它方式)的任何机器。此外,虽然只说明了单个机器,术语“机器”也应该被理解为包括单独地或联合地执行一组(或多组)指令以便执行本文讨论的方法中的任意一个或多个的机器的任何集合,该方法例如是云计算、软件即服务(SaaS)、其它计算机集群配置。
机器(例如,计算机***)500可以包括硬件处理器502(例如,中央处理单元(CPU)、图形处理单元(GPU)、硬件处理器核心或其任何组合)、主存储器504和静态存储器506,其中的一些或全部可以经由互连链路(例如,总线)508与彼此进行通信。机器500可以进一步包括显示设备510、字母数字输入设备512(例如,键盘)和用户接口(UI)导航设备514(例如,鼠标或轨迹板)。在示例中,显示设备510、输入设备512和UI导航设备514可以是实现所有三个任务的触摸屏显示器。机器500可以此外包括海量存储设备(例如,驱动单元)516、信号生成设备518(例如,扬声器)、网络接口设备520和一个或多个传感器521,该传感器例如是全球定位***(GPS)传感器、罗盘、加速度计或其它传感器。机器500可以包括输出控制器528,例如串行(例如,通用串行总线(USB)、并行或其它有线或无线(例如,红外(IR))连接以便与一个或多个***设备(例如打印机、读卡器等等)进行通信或者控制一个或多个***设备(例如打印机、读卡器等等)。
海量存储设备526可以包括机器可读介质522,其上存储有体现本文描述的技术或功能中的任意一个或多个或者由本文描述的技术或功能中的任意一个或多个利用的一组或多组数据结构或指令524(例如,软件)。指令524还可以在其由机器500执行期间全部或至少部分地存在于主存储器504内、静态存储器506内或硬件处理器502内。在示例中,硬件处理器502、主存储器504、静态存储器506或海量存储设备516的一个或任何组合可以构成机器可读介质。
虽然机器可读介质522被说明为单个介质,但是术语“机器可读介质”可以包括被布置成存储一个或多个指令524的单个介质或多个介质(例如,集中式或分布式数据库和/或相关联的高速缓存和服务器)。
术语“机器可读介质”可以包括能够存储、编码或承载用于由机器500执行并且使机器500执行本公开的技术中的任意一个或多个的指令或者能够存储、编码或承载由这样的指令使用或与这样的指令相关联的数据结构的任何介质。非限制性的机器可读介质示例可以包括固态存储器以及光学和磁性介质。在示例中,聚集机器可读介质包括具有多个粒子的机器可读介质,该多个粒子具有静止质量。聚集机器可读介质的特定示例可以包括:诸如半导体存储器设备(例如,电可编程只读存储器(EPROM)、电可擦除可编程只读存储器(EEPROM))和闪存设备的非易失性存储器;诸如内部硬盘和可移动磁盘的磁性盘;磁光盘;以及CD-ROM、DVD-ROM和蓝光盘。
可以进一步通过通信网络526使用传输介质经由利用多个传输协议(例如帧中继、互联网协议(IP)、传输控制协议(TCP)、用户数据报协议(UDP)、超文本传输协议(HTTP)等等)中的任意一个的网络接口设备520来传输或接收指令524。示例通信网络可以包括局域网(LAN)、广域网(WAN)、分组数据网络(例如,互联网)、移动电话网络(例如,蜂窝网络)、普通老式电话(POTS)网络和无线数据网络(例如,被称为的电气与电子工程师协会(IEEE)802.11标准系列、被称为的IEEE802.16标准系列)、对等(P2P)网络等等。在示例中,网络接口设备520可以包括一个或多个物理插孔(例如,以太网、同轴或电话插孔)或者一个或多个天线以连接到通信网络526。在示例中,网络接口设备520可以包括多个天线以便使用单输入多输出(SIMO)、多输入多输出(MIMO)或多输入单输出(MISO)技术中的至少一个来无线地进行通信。术语“传输介质”应被理解为包括能够存储、编码或承载用于由机器500执行的指令并且包括数字或模拟通信信号或其它无形介质以便于这样的软件的通信的任何无形介质。
下面的示例涉及进一步的实施例。
示例1包括由D2D通信管理实体(DCME)执行的用于在第一用户设备(UE)和第二UE之间建立设备到设备(D2D)通信会话的方法,该方法包括:从第一UE接收请求以便建立D2D通信会话;将配对请求消息发送到第二UE;并且在从第二UE接收到确认之后,将D2D建立请求消息发送到演进型节点B(eNB)。
在示例2中,示例1的主题可以可选地进一步包括:检查策略计费和规则功能以便确定在第一UE和第二UE之间的D2D通信是否被禁止;并且如果在第一UE和第二UE之间的D2D通信被禁止,则发送被布置成向第一UE通知该请求被拒绝的D2D连接拒绝消息。
在示例3中,示例1的主题可以可选地进一步包括:如果第二UE拒绝该连接请求,则将D2D连接拒绝消息发送到第一UE。
示例4是由演进型节点B(eNB)执行的用于在第一用户设备(UE)和第二UE之间建立设备到设备(D2D)通信会话的方法,该方法包括:从被布置成指示eNB将建立D2D通信会话的D2D通信管理实体(DCME)接收D2D建立请求消息;将D2DUE状态信息请求消息发送到第一UE和第二UE;从第一UE并从第二UE接收D2Due状态信息报告消息;将资源分配给D2D通信会话;以及将详述所分配的资源的D2D资源配置消息发送到第一UE和第二UE。
在示例5中,示例4的主题可以可选地包括额外的特征,其中所述D2DUE状态信息请求消息被布置成从第一UE并且从第二UE请求信息,所述信息选自包括下列项目的组:缓冲器状态报告、天线配置、链路质量测量报告、服务质量要求。
在示例6中,示例5的主题可以可选地包括额外的特征,其中D2DUe状态信息报告消息被布置成将信息发送到eNB,所述信息选自包括下列项目的组:缓冲器状态报告、天线配置、链路质量测量报告、服务质量要求。
在示例7中,示例4的主题可以可选地包括额外的特征,其中D2D资源配置消息经由无线资源控制(RRC)信令或经由动态物理下行链路控制信道(PDCCH)信令而被发送。
在示例8中,示例4的主题可以可选地包括额外的特征,其中D2D资源配置消息进一步包括下列项目中的一个或多个:被布置成指示将用于D2D通信会话的资源块索引的资源块分配;被布置成指示在连续的D2D子帧之间的时间间隔的D2D资源间隔UL消息;以及被布置成指示将被分配给D2D通信会话的D2D资源的持续时间的D2D资源配置持续时间消息。
在示例9中,示例8的主题可以可选地包括额外的特征,其中D2D资源配置消息进一步被布置成将第一UE或第二UE中的一个指定为主UE。
在示例10中,示例9的主题可以可选地进一步包括:从主UE接收D2D资源请求消息,其中D2D资源请求消息被布置成请求资源到D2D连接的重新分配;以及基于D2D资源请求消息将资源重新分配到D2D连接。
在示例11中,示例4的主题可以可选地进一步包括:从第一UE接收D2D连接释放消息;重新分配由D2D连接使用的资源;以及将D2D连接释放消息发送到第一UE和第二UE。
示例12是由第一用户设备(UE)执行的用于修改与第二UE的设备到设备(D2D)通信会话的方法,该方法包括:确定应该改变在第一用户设备和第二用户设备之间的资源分配;发送一个或多个D2D上行链路帧;发送被布置成向第二UE指示开始发送D2D帧的时隙分配(TA)消息;以及从第二UE接收一个或多个D2D下行链路帧;并且将TA消息从第一UE发送到第二UE以便在第一UE和第二UE之间动态地重新分配多个D2D帧。
在示例13中,示例12的主题可以可选地包括额外的特征,其中时隙分配消息进一步被布置成指示传输窗的尺寸,其中传输窗的尺寸等于从第一UE到第二UE的D2D上行链路帧的数量和从第二UE到第一UE的D2D帧的数量的和。
在示例14中,示例13的主题可以可选地包括额外的特征,其中传输窗的尺寸是可变的;并且进一步地其中所述时隙分配消息进一步被布置成指示传输窗的尺寸。
在示例15中,示例13的主题可以可选地包括额外的特征,其中传输窗的尺寸是固定的。
在示例16中,示例12的主题可以可选地进一步包括改变针对D2D通信会话的调制和编码方案(MCS)。
示例17是用户设备(UE),其被布置成经由在所述UE和第二UE之间的设备到设备(D2D)通信会话来进行通信,所述用户设备包括:处理器;收发机,其耦合到处理器并被布置成经由天线组件来传输和接收信号;其中,所述处理器被布置成:确定应该改变在所属UE和第二UE之间的资源分配;向第二UE发送一个或多个D2D上行链路帧;发送被布置成向第二UE指示开始发送D2D帧的时隙分配(TA)消息;从第二UE接收一个或多个D2D下行链路帧;以及将TA消息从所述UE发送到第二UE以在所述UE和第二UE之间动态地重新分配多个D2D帧。
在示例18中,示例17的主题可以可选地包括额外的特征,其中时隙分配消息进一步被布置成指示传输窗的尺寸,其中传输窗的尺寸等于从第一UE到第二UE的D2D上行链路帧的数量和从第二UE到第一UE的D2D帧的数量的和。
在示例19中,示例17的主题可以可选地包括额外的特征,其中传输窗的尺寸是可变的;并且进一步地其中所述时隙分配消息进一步被布置成指示传输窗的尺寸。
在示例20中,示例17的主题可以可选地包括额外的特征,其中传输窗的尺寸是固定的。
在示例21中,示例17的主题可以可选地包括额外的特征,其中处理器进一步被布置成改变针对D2D通信会话的调制和编码方案(MCS)。
示例22是机器可读介质,其包括用于修改在第一用户设备(UE)和第二UE之间的设备到设备(D2D)通信会话的指令,所述指令在由第一计算设备执行时使该第一计算设备执行下列操作:确定应该改变在第一用户设备和第二用户设备之间的资源分配;发送一个或多个D2D上行链路帧;发送被布置成向第二UE指示开始发送D2D帧的时隙分配(TA)消息;从第二UE接收一个或多个D2D下行链路帧;以及将时隙分配(TA)消息从第一UE发送到第二UE以在第一UE和第二UE之间动态地重新分配多个D2D帧。
在示例23中,示例22的主题可以可选地包括额外的特征,其中所述时隙分配消息进一步被布置成指示传输窗的尺寸,其中所述传输窗的尺寸等于从第一UE到第二UE的D2D上行链路帧的数量和从第二UE到第一UE的D2D帧的数量的和。
虽然在本文说明和描述了本发明的某些特征,但是本领域中的技术人员可以想到很多修改、代替、改变和等效形式。因此应理解,所附权利要求旨在涵盖落在本发明的范围内的所有这样的修改和改变。
上面的详细描述包括对形成详细描述的一部分的附图的参照。附图通过说明的方式示出了可以被实施的特定实施例。这些实施例在本文也被称为“示例”。这样的示例可以包括除了所示出或描述的那些元件以外的元件。然而也设想包括所示出或描述的元件的示例。而且,还设想关于特定的示例(或其一个或多个方面)或关于在本文示出或描述的其它示例(或其一个或多个方面)使用所示出或描述的那些元件的任何组合或置换的示例(或其一个或多个方面)。
在本文件中提到的公布、专利和专利文档通过引用被全部并入本文,好像通过引用被单独地并入一样。在本文档和通过引用这样并入的那些文档之间的不一致使用的情况下,在所合并的参考资料中的使用补充本文档的使用;对于无法调和的不一致性,本文档中的使用起支配作用。
在本文档中,如在专利文件中常见的,使用术语“一”或“一个”来包括一个或多于一个,而与“至少一个”或者“一个或多个”的任何其它实例或使用无关。在本文档中,术语“或”用于指代非排他性的或,使得“A或B”包括“A但不是B”、“B但不是A”以及“A和B”,除非以其它方式指示。在所附权利要求中,术语“包含”和“在其中”分别用作相应的术语“包括”和“其中”的浅近英语等效形式。并且,在下面的权利要求中,术语“包含”和“包括”是开放的,即,包括除了在权利要求中的这样的术语之后列出的那些元件以外的元件的***、设备、制品或过程仍然被认为落在该权利要求的范围内。而且,在下面的权利要求中,术语“第一”、“第二”、“第三”等等仅用作标记,并且并不意在暗示它们的对象的数字顺序。
上面的描述旨在是说明性的而不是限制性的。例如,上述示例(或其一个或多个方面)可以结合其它示例来使用。其它实施例可以例如由本领域中的普通技术人员在审阅上面的描述时使用。摘要应该允许读者快速地确定技术公开的性质,例如以便符合美国的37C.F.R.§1.72(b)。应当理解,它并不用于解释或限制权利要求的范围或含义。并且,在上面的详细描述中,各种特征被分组在一起以使本公开简单化。然而,权利要求可以不阐述在本文公开的每一个特征,因为实施例可以以所述特征的子集为特征。进而,实施例可以包括比在特定的示例中公开的那些特征更少的特征。因而,下面的权利要求特此被合并到详细描述中,权利要求独立地作为单独的实施例。应参照所附权利要求来确定本文公开的实施例的范围,连同这样的权利要求被给与权利的等效形式的完全范围。
Claims (21)
1.一种由设备到设备(D2D)通信管理实体(DCME)执行的用于在第一用户设备(UE)和第二UE之间建立D2D通信会话的方法,所述方法包括:
接收来自所述第一UE的请求,以便建立所述D2D通信会话;
将配对请求消息发送到所述第二UE;以及
在从所述第二UE接收到确认之后,将D2D建立请求消息发送到演进型节点B(eNB)。
2.如权利要求1所述的方法,进一步包括:
检查策略计费和规则功能,以便确定在所述第一UE和所述第二UE之间的D2D通信是否被禁止;以及
如果在所述第一UE和所述第二UE之间的D2D通信被禁止,则发送被布置成向所述第一UE通知所述请求被拒绝的D2D连接拒绝消息。
3.如权利要求1所述的方法,进一步包括:
如果所述第二UE拒绝所述连接请求,则将D2D连接拒绝消息发送到所述第一UE。
4.一种由演进型节点B(eNB)执行的用于在第一用户设备(UE)和第二UE之间建立设备到设备(D2D)通信会话的方法,所述方法包括:
从被布置成指示所述eNB将建立所述D2D通信会话的D2D通信管理实体(DCME)接收D2D建立请求消息;
将D2DUE状态信息请求消息发送到所述第一UE和所述第二UE;
从所述第一UE并且从所述第二UE接收D2DUe状态信息报告消息;
将资源分配给所述D2D通信会话;以及
将详述所分配的资源的D2D资源配置消息发送到所述第一UE和所述第二UE。
5.如权利要求4所述的方法,其中,所述D2DUE状态信息请求消息被布置成从所述第一UE并且从所述第二UE请求信息,所述信息选自包括下列项目的组:缓冲器状态报告、天线配置、链路质量测量报告、服务质量要求。
6.如权利要求5所述的方法,其中,所述D2DUe状态信息报告消息被布置成将信息发送到所述eNB,所述信息选自包括下列项目的组:缓冲器状态报告、天线配置、链路质量测量报告、服务质量要求。
7.如权利要求4所述的方法,其中,所述D2D资源配置消息是经由无线资源控制(RRC)信令或者经由动态物理下行链路控制信道(PDCCH)信令来发送的。
8.如权利要求4所述的方法,其中,所述D2D资源配置消息包括下列项目中的一个或多个:
被布置成指示将用于所述D2D通信会话的资源块索引的资源块分配;
被布置成指示在连续的D2D子帧之间的时间间隔的D2D资源间隔UL消息;以及
被布置成指示将被分配给所述D2D通信会话的D2D资源的持续时间的D2D资源配置持续时间消息。
9.如权利要求8所述的方法,其中,所述D2D资源配置消息进一步被布置成将所述第一UE或者所述第二UE中的一个指定为主UE。
10.如权利要求9所述的方法,进一步包括:
从所述主UE接收D2D资源请求消息,其中,所述D2D资源请求消息被布置成请求资源到所述D2D连接的重新分配;以及
基于所述D2D资源请求消息将资源重新分配到所述D2D连接。
11.如权利要求4所述的方法,进一步包括:
从所述第一UE接收D2D连接释放消息;
重新分配由所述D2D连接使用的资源;以及
将D2D连接释放消息发送到所述第一UE和所述第二UE。
12.一种由第一用户设备(UE)执行的用于修改与第二UE的设备到设备(D2D)通信会话的方法,所述方法包括:
确定应该改变在所述第一用户设备和所述第二用户设备之间的资源分配;
发送一个或多个D2D上行链路帧;
发送被布置成向所述第二UE指示开始发送D2D帧的时隙分配(TA)消息;
从所述第二UE接收一个或多个D2D下行链路帧;以及
将TA消息从所述第一UE发送到所述第二UE,以便在所述第一UE和所述第二UE之间动态地重新分配D2D帧的数量。
13.如权利要求12所述的方法,其中,所述时隙分配消息进一步被布置成指示传输窗的尺寸,其中,所述传输窗的尺寸等于从所述第一UE到所述第二UE的D2D上行链路帧的数量和从所述第二UE到所述第一UE的D2D帧的数量的总和。
14.如权利要求13所述的方法,其中:
所述传输窗的尺寸是可变的;并且进一步地其中
所述时隙分配消息进一步被布置成指示所述传输窗的尺寸。
15.如权利要求13所述的方法,其中,所述传输窗的尺寸是固定的。
16.如权利要求12所述的方法,进一步包括:
改变针对所述D2D通信会话的调制和编码方案(MCS)。
17.一种用户设备(UE),所述用户设备被布置成经由在所述UE和第二UE之间的设备到设备(D2D)通信会话来进行通信,所述用户设备包括:
处理器;
收发机,其耦合到所述处理器,并且被布置成经由天线组件来传输和接收信号;其中
所述处理器被布置成:
确定应该改变在所述UE和所述第二UE之间的资源分配;
指导所述收发机向所述第二UE发送一个或多个D2D上行链路帧;
指导所述收发机发送被布置成向所述第二UE指示开始发送D2D帧的时隙分配(TA)消息;
指导所述收发机从所述第二UE接收一个或多个D2D下行链路帧;以及
将TA消息从所述UE发送到所述第二UE,以便在所述UE和所述第二UE之间动态地重新分配D2D帧的数量。
18.如权利要求17所述的UE,其中,所述时隙分配消息进一步被布置成指示传输窗的尺寸,其中,所述传输窗的尺寸等于从所述第一UE到所述第二UE的D2D上行链路帧的数量和从所述第二UE到所述第一UE的D2D帧的数量的总和。
19.如权利要求17所述的UE,其中:
所述传输窗的尺寸是可变的;并且进一步地其中
所述时隙分配消息进一步被布置成指示所述传输窗的尺寸。
20.如权利要求17所述的UE,其中,所述传输窗的尺寸是固定的。
21.如权利要求17所述的UE,其中,所述处理器进一步被布置成:
改变针对所述D2D通信会话的调制和编码方案(MCS)。
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WO2014022776A1 (en) | 2014-02-06 |
EP2880955A4 (en) | 2016-07-20 |
US9363702B2 (en) | 2016-06-07 |
EP2880955B1 (en) | 2021-03-31 |
US20150139197A1 (en) | 2015-05-21 |
EP2880955A1 (en) | 2015-06-10 |
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