公开(公告)号：US08804662B2

公开(公告)日：2014-08-12

申请号：US12935852

申请日：2009-03-13

申请人： Violeta Cakulev ,  Michael Francis Dolan ,  Subramanian Vasudevan ,  Lily H. Zhu

发明人： Violeta Cakulev ,  Michael Francis Dolan ,  Subramanian Vasudevan ,  Lily H. Zhu

IPC分类号： H04W4/00

CPC分类号： H04W36/14 ,  H04W36/0066 ,  H04W36/08 ,  H04W92/20

摘要： For handover between wireless telecommunications networks of different technology types, an air interface is set up between a first node 4 included in a network of a first technology type and a second node 10 included in a network of a second different technology type. Signaling messaging, in accordance with the second technology type, is related to handover of a mobile terminal from the network of the first technology type to the network of the second technology type. The signaling messaging is encapsulated in a container for transmission over the signaling interface. An identifier is associated with the container to indicate that it encapsulates the signaling messaging. When the identifier is detected at the first node, the container is sent over the interface to the second node. In one method in accordance with the invention, the first technology type is WiMAX and the identifier is a special service flow identifier. This may be detected at an Access Services Network Gateway (ASN GW), for example. A method in accordance with the invention thus permits the use of logical radio channels for encapsulating inter-technology signaling.

摘要翻译： 对于不同技术类型的无线电信网络之间的切换，在包括在第一技术类型的网络中的第一节点4和第二不同技术类型的网络中包括的第二节点10之间建立空中接口。 根据第二技术类型的信令消息传送涉及移动终端从第一技术类型的网络到第二技术类型的网络的切换。 信令消息被封装在容器中，用于通过信令接口进行传输。 标识符与容器相关联，以指示其封装信令消息。 当在第一节点处检测到标识符时，容器通过接口发送到第二节点。 在根据本发明的一种方法中，第一种技术类型是WiMAX，标识符是特殊业务流标识符。 例如，这可以在接入服务网络网关（ASN GW）处检测。 因此，根据本发明的方法允许使用逻辑无线电信道来封装技术间信令。

公开(公告)号：US20130250764A1

公开(公告)日：2013-09-26

申请号：US13427175

申请日：2012-03-22

申请人： Subramanian Vasudevan ,  Rahul N. Pupala ,  Kathiravetpillai Sivanesan

发明人： Subramanian Vasudevan ,  Rahul N. Pupala ,  Kathiravetpillai Sivanesan

IPC分类号： H04W28/08 ,  H04W24/00

CPC分类号： H04W16/14 ,  H04L47/6225 ,  H04L2012/5678 ,  H04L2012/568 ,  H04W16/32 ,  H04W36/30

摘要： A method of setting an almost blank subframe (ABS) duty cycle in a heterogeneous network including a macro cell and one or more small cells, the one or more small cells being underlaid with respect to the macro cell includes obtaining, at a network element, loading information corresponding to each of the macro cell and the one or more small cells, the loading information including, for each of the macro cell and the one or more small cells, an indication of an amount of information buffered at the cell for each user attached to the cell; and determining the ABS duty cycle based on the obtained loading information.

摘要翻译： 一种在包括宏小区和一个或多个小小区的异构网络中设置几乎空白子帧（ABS）占空比的方法，所述一个或多个相对于所述宏小区被嵌套的小小区包括：在网元处， 加载对应于宏小区和一个或多个小小区中的每一个的信息，对于每个宏小区和一个或多个小小区，加载信息包括针对每个用户在小区缓存的信息量的指示 附着于细胞; 以及基于获得的装载信息确定ABS占空比。

公开(公告)号：US08493941B2

公开(公告)日：2013-07-23

申请号：US11409161

申请日：2006-04-21

申请人： Shirish Nagaraj ,  Subramanian Vasudevan

发明人： Shirish Nagaraj ,  Subramanian Vasudevan

IPC分类号： H04B1/707

CPC分类号： H04W52/48 ,  H04W36/24 ,  H04W52/28 ,  H04W52/286 ,  H04W52/36 ,  H04W52/362 ,  H04W52/367 ,  H04W52/40 ,  H04W52/56

摘要： A mobile terminal is controlled via over-the-air feedback so as to enable its data transmissions to be independently and successfully decoded at each of the base stations in its active set absent a transmit power limitation or data retransmission limit. Using the decoded data, the channel is re-estimated and the waveform received from the mobile terminal is reconstructed and subtracted from the total interference at each base station in the active set where decoding has been successful. As a result, transmissions from other mobile terminals, which have yet to be successfully decoded at such a base station, will experience a higher signal-to-noise ratio and thus an increased likelihood of being successfully decoded.

摘要翻译： 通过空中反馈来控制移动终端，以便在没有发射功率限制或数据重传限制的情况下，使得其数据传输能够在其活动集合中的每个基站上独立且成功地解码。 使用解码的数据，重新估计信道，并从移动终端接收到的波形被重构，并从解码成功的有效集中的每个基站的总干扰中减去。 因此，在这种基站尚未成功解码的其他移动终端的传输将会经历更高的信噪比，从而增加成功解码的可能性。

公开(公告)号：US08380195B2

公开(公告)日：2013-02-19

申请号：US10941266

申请日：2004-09-15

申请人： Subramanian Vasudevan ,  Yunsong Yang

发明人： Subramanian Vasudevan ,  Yunsong Yang

IPC分类号： H04W36/00

CPC分类号： H04W72/042 ,  H04W28/22 ,  H04W36/18

摘要： A method for transmitting control information from multiple base stations in an active set to a mobile device in a wireless communication system reduces resource consumption by routing information originating from a plurality of active base stations through a single serving base station. The serving base station pools and resolves the information from the active base stations and sends the resolution of the pooled information over a downlink control channel for evaluation and response by the mobile device.

摘要翻译： 一种用于在无线通信系统中将活动集中的多个基站发送到移动设备的控制信息的方法通过通过单个服务基站路由来自多个活动基站的信息来减少资源消耗。 服务基站对来自活动基站的信息进行分组，并通过下行链路控制信道发送合并信息的分辨率，以便移动设备进行评估和响应。

公开(公告)号：US08369858B2

公开(公告)日：2013-02-05

申请号：US12612704

申请日：2009-11-05

申请人： Subramanian Vasudevan ,  Jialin Zou

发明人： Subramanian Vasudevan ,  Jialin Zou

IPC分类号： H04W36/00

CPC分类号： H04W48/16 ,  H04W84/045

摘要： The present application describes methods involving one or more mobile units, one or more macrocells providing wireless connectivity to one or more first coverage areas, and one or more femtocell providing wireless connectivity to one or more second coverage areas overlapping with the first coverage area(s). One embodiment of the method includes determining, at the femtocell(s), whether to transmit one or more beacon signal from the femtocell(s) on one or more carriers associated with the macrocell(s) based on whether mobile unit(s) are located within the first coverage area(s).

摘要翻译： 本申请描述了涉及一个或多个移动单元的方法，一个或多个宏小区向一个或多个第一覆盖区域提供无线连接，以及一个或多个毫微微小区，向与第一覆盖区域重叠的一个或多个第二覆盖区域提供无线连接 ）。 该方法的一个实施例包括在毫微微小区基于移动单元是否在与一个或多个与宏小区相关联的一个或多个载波上的毫微微小区中发送一个或多个信标信号是否是 位于第一覆盖区域内。

公开(公告)号：US08300584B2

公开(公告)日：2012-10-30

申请号：US12455215

申请日：2009-05-30

申请人： Ashok N. Rudrapatna ,  Ganapathy S. Sundaram ,  Subramanian Vasudevan ,  Jialin Zou

发明人： Ashok N. Rudrapatna ,  Ganapathy S. Sundaram ,  Subramanian Vasudevan ,  Jialin Zou

IPC分类号： H04W80/00

CPC分类号： H04W72/082 ,  H04B7/022 ,  H04L1/0048 ,  H04L1/1607 ,  H04L2001/0092 ,  H04W72/0413

摘要： A method is provided for scheduling transmission resources to a mobile station served by a plurality of base stations. According to the method of the invention, feedback information respecting data received by the mobile station from each of at least two of the plurality of base stations is received by the each of the plurality of base stations. An inference is then drawn at a second of the plurality of base stations of throughput parameters respecting a transmission channel between a first of the plurality of base stations and the mobile station. Transmission resources for the mobile station are then scheduled by the second base station as a function of the inferred throughput parameters.

摘要翻译： 提供了一种用于向由多个基站服务的移动台调度传输资源的方法。 根据本发明的方法，由多个基站中的至少两个基站中的每一个接收由移动台接收的数据的反馈信息由多个基站中的每个基站接收。 然后在多个基站中的第二个基础上，对与多个基站中的第一个基站和移动台之间的传输信道相关的吞吐量参数进行推断。 然后由第二基站调度用于移动站的传输资源作为推断的吞吐量参数的函数。

公开(公告)号：US20120236977A1

公开(公告)日：2012-09-20

申请号：US13051071

申请日：2011-03-18

申请人： Jialin Zou ,  Subramanian Vasudevan

发明人： Jialin Zou ,  Subramanian Vasudevan

IPC分类号： H04L7/00

CPC分类号： H04W56/0015 ,  H04J3/0682 ,  H04L7/042 ,  H04W56/00

摘要： Example embodiments are directed to a method including transmitting, by a small cell, a pilot signal to a user equipment (UE) based on a first training signal received from the UE, and receiving, by the small cell, a second training signal from the UE. The second training signal is offset by a time based on the pilot signal transmitted by the small cell. The time offset represents a difference in time between the UE receiving a reference signal transmitted by a macro cell and the UE receiving the pilot signal transmitted by the small cell. The small cell adjusts a local reference timing based on the second training signal.

摘要翻译： 示例性实施例涉及一种方法，包括：由小单元基于从UE接收的第一训练信号向用户设备（UE）发送导频信号，以及由小小区接收来自所述UE的第二训练信号 UE。 第二训练信号基于由小小区发送的导频信号而偏移一个时间。 时间偏移表示UE接收由宏小区发送的参考信号与接收小小区发送的导频信号的UE之间的时间差。 小单元基于第二训练信号来调整本地参考定时。

公开(公告)号：US20120014360A1

公开(公告)日：2012-01-19

申请号：US12838949

申请日：2010-07-19

申请人： Jialin Zou ,  Subramanian Vasudevan ,  Kathiravetpillai Sivanesan

发明人： Jialin Zou ,  Subramanian Vasudevan ,  Kathiravetpillai Sivanesan

IPC分类号： H04W4/00

CPC分类号： H04W16/16 ,  H04W84/045 ,  Y02D70/122 ,  Y02D70/1242 ,  Y02D70/1262

摘要： A method is provided a wireless system for providing small “guard” cells in a heterogeneous network at locations proximate to privately-maintained HeNB (or femto) cells in the heterogeneous network. More particularly, the methodology of the invention addresses the problem of a mobile user in a heterogeneous network located nearby to a privately maintained HeNB cell in the heterogeneous network, and the inherent interference created for the HeNB cell by the necessity of the mobile user having to transmit and receive communications from a distant public macro eNB. By deploying small public “guard” cells in the macro cell proximate to the private HeNB cells, such a public mobile terminal is enabled to communicate with the public small cell at generally lower power than would have been necessary for communication with the distant macro eNB, with a resulting reduction in interference for the nearby HeNB cell. The FL interference between the macro cell and the HeNBs is also mitigated.

摘要翻译： 提供了一种无线系统，用于在异构网络中的邻近私有维护HeNB（或毫微微）小区的位置的异构网络中提供小的“保护”小区。 更具体地说，本发明的方法解决了位于异构网络中私有维护的HeNB小区附近的异构网络中的移动用户的问题，以及由移动用户必须为HeNB小区创建的固有干扰 从远程的公共宏eNB发送和接收通信。 通过在靠近私有HeNB小区的宏小区中部署小的公共“保卫”小区，这样的公共移动终端能够以比与远程宏eNB进行通信所需的一般功率更小的功率与公共小小区进行通信， 导致附近HeNB电池的干扰减少。 宏小区和HeNB之间的FL干扰也得到缓解。

公开(公告)号：US20110188469A1

公开(公告)日：2011-08-04

申请号：US12935852

申请日：2009-03-13

申请人： Violeta Cakulev ,  Michael Francis Dolan ,  Subramanian Vasudevan ,  Lily H. Zhu

发明人： Violeta Cakulev ,  Michael Francis Dolan ,  Subramanian Vasudevan ,  Lily H. Zhu

IPC分类号： H04W36/14

CPC分类号： H04W36/14 ,  H04W36/0066 ,  H04W36/08 ,  H04W92/20

摘要： For handover between wireless telecommunications networks of different technology types, an air interface is set up between a first node 4 included in a network of a first technology type and a second node 10 included in a network of a second different technology type. Signaling messaging, in accordance with the second technology type, is related to handover of a mobile terminal from the network of the first technology type to the network of the second technology type. The signaling messaging is encapsulated in a container for transmission over the signaling interface. An identifier is associated with the container to indicate that it encapsulates the signaling messaging. When the identifier is detected at the first node, the container is sent over the interface to the second node. In one method in accordance with the invention, the first technology type is WiMAX and the identifier is a special service flow identifier. This may be detected at an Access Services Network Gateway (ASN GW), for example. A method in accordance with the invention thus permits the use of logical radio channels for encapsulating inter-technology signaling.

摘要翻译： 对于不同技术类型的无线电信网络之间的切换，在包括在第一技术类型的网络中的第一节点4和第二不同技术类型的网络中包括的第二节点10之间建立空中接口。 根据第二技术类型的信令消息传送涉及移动终端从第一技术类型的网络到第二技术类型的网络的切换。 信令消息被封装在容器中，用于通过信令接口进行传输。 标识符与容器相关联，以指示其封装信令消息。 当在第一节点处检测到标识符时，容器通过接口发送到第二节点。 在根据本发明的一种方法中，第一种技术类型是WiMAX，标识符是特殊业务流标识符。 例如，这可以在接入服务网络网关（ASN GW）处检测。 因此，根据本发明的方法允许使用逻辑无线电信道来封装技术间信令。

公开(公告)号：US20100291935A1

公开(公告)日：2010-11-18

申请号：US12459341

申请日：2009-06-30

申请人： Ashok N. Rudrapatna ,  Kathiravetpillai Sivanesan ,  Subramanian Vasudevan

发明人： Ashok N. Rudrapatna ,  Kathiravetpillai Sivanesan ,  Subramanian Vasudevan

IPC分类号： H04W72/00 ,  H04B7/14

CPC分类号： H04B7/2606 ,  H04B7/155 ,  H04W16/26 ,  H04W40/22 ,  H04W72/082

摘要： A multi-stream wireless relay is arranged to maintain independent data streams with multiple base stations and thereby provide a relay from those multiple base stations to mobile units having respective communication relationships with those multiple base stations. In an alternative approach, the data streams from the multiple base stations are superposed on each other, wherein harmful inter-cell interference is converted into useful information bearing signals, thereby enabling the scheduling of transmission resources from the multiple base stations for a single mobile unit via the relay.

摘要翻译： 多流无线中继器被设置为维持具有多个基站的独立数据流，从而提供从那些多个基站到具有与那些多个基站具有相应通信关系的移动单元的中继。 在另一种方法中，来自多个基站的数据流彼此重叠，其中有害的小区间干扰被转换为有用的信息承载信号，从而使得能够从单个移动单元的多个基站调度传输资源 通过继电器