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公开(公告)号：US09191226B2
公开(公告)日：2015-11-17
申请号：US12439059
申请日：2007-09-28
IPC分类号： H04L12/26
CPC分类号： H04L12/2697 , H04L43/50
摘要： Methods and apparatus for determining the quality of a communication link transmitting a specified packet type are disclosed. The methodology includes configuring first packets, which share transmission characteristics with a specific packet type, such as a Voice over IP packet, such that the first packets experience similar communication link treatment as the specific packet type. The first packets are then transmitted over the communication link to a quality monitoring server located near a termination equipment of the particular communication link. Second packets, which are transmitted by the server in response to the first packets, are received and evaluated to determine the quality of the communication link based on characteristics of the second packets. Corresponding apparatus are also disclosed.
摘要翻译： 公开了用于确定发送指定分组类型的通信链路的质量的方法和装置。 该方法包括配置与特定分组类型（例如IP语音分组）共享传输特性的第一分组，使得第一分组经历与特定分组类型类似的通信链路处理。 然后，第一个分组通过通信链路发送到位于特定通信链路的终端设备附近的质量监视服务器。 接收并评估由服务器响应于第一分组而发送的第二分组，以基于第二分组的特性来确定通信链路的质量。 还公开了相应的装置。
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公开(公告)号：US09137713B2
公开(公告)日：2015-09-15
申请号：US13233810
申请日：2011-09-15
申请人： Andrei Dragos Radulescu , Vinay Chande , Jen Mei Chen , Sanjiv Nanda , Damanjit Singh , Mehmet Yavuz
发明人： Andrei Dragos Radulescu , Vinay Chande , Jen Mei Chen , Sanjiv Nanda , Damanjit Singh , Mehmet Yavuz
CPC分类号： H04W64/00 , H04W4/08 , H04W24/10 , H04W36/0061 , H04W36/0083 , H04W36/04 , H04W52/244 , H04W52/325 , H04W84/045
摘要： Methods and apparatuses are provided for causing active hand-in of a device from a macrocell base station to a femto node, which can be an inter-frequency hand-in. The femto node can broadcast a beacon over an operating frequency of the macrocell base station, and the macrocell base station, and/or one or more network components, can identify the femto node based on one or more parameters reported by the device from receiving the beacon. The beacon can be transmitted at varying powers to ensure active hand-in triggering, mitigate interference and/or can be powered on and off for such purposes. In addition, a macrocell base station can regulate compressed mode periods during which a device can measure the femto node based on receiving information regarding device proximity to the femto node, or a device can generate proximity indication messages base on measuring the beacon signals, etc.
摘要翻译： 提供的方法和装置用于使设备从宏小区基站到可以是频率间接入的毫微微节点的主动接入。 毫微微节点可以在宏小区基站的工作频率上广播信标，并且宏小区基站和/或一个或多个网络组件可以基于设备报告的一个或多个参数来识别毫微微节点，以接收 灯塔 可以以不同的功率发送信标，以确保主动的手持触发，减轻干扰和/或可以为此目的打开和关闭电源。 此外，宏小区基站可以调节压缩模式周期，在此期间，设备可以基于接收到与毫微微节点邻近的接收信息来测量毫微微节点，或者设备可以基于测量信标信号等产生接近指示消息。
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公开(公告)号：US09119164B2
公开(公告)日：2015-08-25
申请号：US12542294
申请日：2009-08-17
CPC分类号： H04W52/325 , H04W52/244 , H04W52/245 , H04W52/28 , H04W84/045
摘要： An access point generates beacons at different power levels at different times to provide an acceptable tradeoff between coverage area associated with the beacons and outage experienced at nearby access terminals. For example, a femto access point may transmit beacons at a relatively low power for a relatively long period of time to reduce interference at nearby access terminals that are being served by a macro access point. The femto access point may then transmit beacons at a relatively high power for a relatively short period of time to enable nearby access terminals to receive the beacons. Also, a given transmit chain may be used to provide frequency hopping of high and low power beacons.
摘要翻译： 接入点在不同时间产生不同功率电平的信标，以提供与信标相关联的覆盖区域和在附近接入终端处经历的中断之间的可接受的折中。 例如，毫微微接入点可以以相对较低的功率在相对长的时间段内发送信标，以减少正在由宏接入点服务的附近接入终端的干扰。 毫微微接入点然后可以在相对较短的时间段内以相对高的功率发送信标，以使附近的接入终端能够接收信标。 此外，给定的发射链可以用于提供高和低功率信标的跳频。
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公开(公告)号：US09078269B2
公开(公告)日：2015-07-07
申请号：US12212622
申请日：2008-09-17
申请人： Mehmet Yavuz , Sanjiv Nanda , Peter J. Black , Bibhu Mohanty
发明人： Mehmet Yavuz , Sanjiv Nanda , Peter J. Black , Bibhu Mohanty
CPC分类号： H04W72/082 , H04W48/08 , H04W52/244 , H04W72/0406
摘要： Interference that occurs during wireless communication may be managed through the use of fractional reuse and other techniques. In some aspects fractional reuse may relate to HARQ interlaces, portions of a timeslot, frequency spectrum, and spreading codes. Interference may be managed through the use of a transmit power profile and/or an attenuation profile. Interference also may be managed through the use of power management-related techniques.
摘要翻译： 可以通过使用分数重用和其他技术来管理在无线通信期间发生的干扰。 在某些方面，分数重用可涉及HARQ交错，时隙的一部分，频谱和扩展码。 可以通过使用发射功率分布和/或衰减分布来管理干扰。 干扰也可以通过使用与电源管理相关的技术进行管理。
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公开(公告)号：US09055511B2
公开(公告)日：2015-06-09
申请号：US12246388
申请日：2008-10-06
申请人： Rajarshi Gupta , Anand Palanigounder , Fatih Ulupinar , Gavin B. Horn , Parag A. Agashe , Jen Mei Chen , Manoj M. Deshpande , Srinivasan Balasubramanian , Sanjiv Nanda , Osok Song
发明人： Rajarshi Gupta , Anand Palanigounder , Fatih Ulupinar , Gavin B. Horn , Parag A. Agashe , Jen Mei Chen , Manoj M. Deshpande , Srinivasan Balasubramanian , Sanjiv Nanda , Osok Song
IPC分类号： H04M1/66 , H04W48/08 , H04L29/06 , H04W12/08 , H04W8/26 , H04W12/06 , H04W48/02 , H04W48/14 , H04W84/04
CPC分类号： H04W48/08 , H04L63/104 , H04W8/26 , H04W12/06 , H04W12/08 , H04W48/02 , H04W48/14 , H04W84/045
摘要： Provisioning and access control for communication nodes involves assigning identifiers to sets of nodes where the identifiers may be used to control access to restricted access nodes that provide certain services only to certain defined sets of nodes. In some aspects provisioning a node may involve providing a unique identifier for sets of one or more nodes such as restricted access points and access terminals that are authorized to receive service from the restricted access points. Access control may be provided by operation of a restricted access point and/or a network node. In some aspects, provisioning a node involves providing a preferred roaming list for the node. In some aspects, a node may be provisioned with a preferred roaming list through the use of a bootstrap beacon.
摘要翻译： 通信节点的配置和访问控制涉及将标识符分配给节点组，其中可以使用标识符来控制对仅向某些定义的节点组提供某些服务的受限访问节点的访问。 在一些方面中，提供节点可以包括为被授权从受限访问点接收服务的一个或多个节点（例如受限访问点和接入终端）的集合提供唯一标识符。 可以通过受限访问点和/或网络节点的操作来提供访问控制。 在一些方面，提供节点涉及为节点提供优选的漫游列表。 在一些方面，可以通过使用引导信标来为节点提供优选的漫游列表。
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公开(公告)号：US09037134B2
公开(公告)日：2015-05-19
申请号：US12433417
申请日：2009-04-30
申请人： Matthew S. Grob , Mehmet Yavuz , Sanjiv Nanda
发明人： Matthew S. Grob , Mehmet Yavuz , Sanjiv Nanda
IPC分类号： H04W4/00 , H04W76/02 , H04W36/04 , H04W88/04 , H04W36/30 , H04W36/32 , H04W64/00 , H04W84/04
CPC分类号： H04W36/30 , H04W24/08 , H04W36/0022 , H04W36/04 , H04W36/32 , H04W64/00 , H04W84/045 , H04W88/04
摘要： Aspects describe communications environments in which femtocell capability is provided to devices within the communications network. A non-femto enabled device and/or a femto enabled device can communicate with a femto enabled device in the same geographical area for femto-enabled peer-to-peer communication. Two non-femto enabled devices can be provided femto functionality through utilization of a femto enabled device, which operates as a hub between the two devices. Other aspects relate to enhanced position determination, adaptive coverage enhancement, local mobile networks, open access femtocells without a backhaul, and local broadcast of media though utilization of femto enabled devices.
摘要翻译： 方面描述了将毫微微小区能力提供给通信网络内的设备的通信环境。 非毫微微功能的设备和/或毫微微功能设备可以在相同的地理区域中与毫微微功能的对等通信进行通信。 可以通过利用作为两个设备之间的集线器的毫微微功能设备来提供两个非毫微微功能的设备。 其他方面涉及增强的位置确定，自适应覆盖增强，本地移动网络，没有回程的开放接入毫微微小区以及通过使用毫微微功能设备的媒体的本地广播。
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公开(公告)号：US09008002B2
公开(公告)日：2015-04-14
申请号：US11833925
申请日：2007-08-03
申请人： Sanjiv Nanda , Ashwin Sampath
发明人： Sanjiv Nanda , Ashwin Sampath
CPC分类号： H04W72/1231 , H04W72/02 , H04W72/082
摘要： A wireless media access control supports asynchronous communication and overlapping transmissions. Here, a wireless node may determine whether to request or schedule a transmission based on control messages it receives from neighboring nodes. In some implementations a scheduled transmission may be divided up into several segments so that a transmitting node may receive and transmit control messages between segments. In some implementations a monitoring period is defined after a scheduled transmission period to enable the transmitting node to acquire control information that may otherwise have been transmitted during the scheduled transmission period. In some implementations data and control information are transmitted over different frequency division multiplexed channels to enable concurrent transmission of the data and control information.
摘要翻译： 无线媒体访问控制支持异步通信和重叠传输。 这里，无线节点可以基于从相邻节点接收到的控制消息来确定是否请求或调度传输。 在一些实施方式中，调度的传输可以被划分成若干段，使得发射节点可以在段之间接收和发送控制消息。 在一些实施方式中，在调度的传输周期之后定义监视周期，以使得发送节点获取否则可能在调度的传输周期期间已经发送的控制信息。 在一些实施方式中，数据和控制信息通过不同的频分多路复用通道传输，以实现数据和控制信息的并发传输。
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公开(公告)号：US08938238B2
公开(公告)日：2015-01-20
申请号：US12917627
申请日：2010-11-02
CPC分类号： H04W48/04 , H04W36/0072 , H04W52/143 , H04W52/244 , H04W52/245 , H04W52/246 , H04W52/40 , H04W84/045 , H04W88/08
摘要： Transmissions by a first access point (e.g., a femto cell) are restricted upon detecting an access terminal in the vicinity of the first access point in the event the access terminal is communicating with a second access point (e.g., a macro cell). Upon detection of such an access terminal, the access terminal restricts transmission (e.g., beacon transmission) on a downlink carrier frequency on which the access terminal is actively receiving information from the second access point. This restriction of transmission by the access point may involve, for example, temporarily reducing transmit power, reducing the periodicity of transmission, or ceasing transmission.
摘要翻译： 在接入终端与第二接入点（例如，宏小区）进行通信的情况下，在检测到第一接入点附近的接入终端时，第一接入点（例如，毫微微小区）的传输受到限制。 在检测到这样的接入终端时，接入终端限制在接入终端主动接收来自第二接入点的信息的下行链路载波频率上的传输（例如信标发送）。 接入点的这种传输限制可能涉及例如临时降低发射功率，减少传输周期或停止传输。
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公开(公告)号：US08909279B2
公开(公告)日：2014-12-09
申请号：US12187304
申请日：2008-08-06
申请人： Mehmet Yavuz , Sanjiv Nanda , Mostafa S. El-Khamy
发明人： Mehmet Yavuz , Sanjiv Nanda , Mostafa S. El-Khamy
CPC分类号： H04W52/40 , H04W16/16 , H04W36/04 , H04W52/143 , H04W52/244 , H04W52/245 , H04W52/367
摘要： Transmit power (e.g., maximum transmit power) may be defined based on the maximum received signal strength allowed by a receiver and a minimum coupling loss from a transmitting node to a receiver. Transmit power may be defined for an access node (e.g., a femto node) such that a corresponding outage created in a cell (e.g., a macro cell) is limited while still providing an acceptable level of coverage for access terminals associated with the access node. An access node may autonomously adjust its transmit power based on channel measurement and a defined coverage hole to mitigate interference. Transmit power may be defined based on channel quality. Transmit power may be defined based on a signal-to-noise ratio at an access terminal. The transmit power of neighboring access nodes also may be controlled by inter-access node signaling.
摘要翻译： 可以基于接收机允许的最大接收信号强度和从发射节点到接收机的最小耦合损耗来定义发射功率（例如，最大发射功率）。 可以为接入节点（例如，毫微微节点）定义发射功率，使得在小区（例如，宏小区）中创建的相应中断受到限制，同时仍然为与接入节点相关联的接入终端提供可接受的覆盖水平 。 接入节点可以基于信道测量和定义的覆盖孔来自主地调整其发射功率以减轻干扰。 发射功率可以基于信道质量来定义。 可以基于接入终端的信噪比来定义发射功率。 相邻接入节点的发射功率也可以由接入间节点信令来控制。
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公开(公告)号：US08903440B2
公开(公告)日：2014-12-02
申请号：US12882945
申请日：2010-09-15
申请人： Sanjiv Nanda , J. Rodney Walton
发明人： Sanjiv Nanda , J. Rodney Walton
CPC分类号： H04W72/1278 , H04W72/1231 , H04W84/18
摘要： An ad hoc network with distributed hierarchical scheduling is disclosed. In one aspect, stations in a network mesh detect interfering neighbor stations and form interference lists. Stations transmit their interference lists. Scheduling stations schedule allocations for child stations in response to interference lists, received remote allocations, or a combination thereof. Coordination messages are transmitted including frame structure, allocations, and interference lists, among others. In another aspect, an ad hoc mesh network may be organized into a tree topology. In an example wireless backhaul network, this matches traffic flow. Distributed, hierarchical scheduling is provided where parents schedule communication with children while respecting already scheduled transmissions to/from interferers and to/from interferers of their respective children. Procedures to construct interference constraints for distributed, hierarchical scheduling are described, resulting in efficient scheduling and reuse in an ad hoc wireless network, without centralized scheduling. Various other aspects are also disclosed.
摘要翻译： 公开了一种具有分布式分层调度的自组织网络。 在一个方面，网络网络中的站检测干扰相邻站并形成干扰列表。 车站发送干扰列表。 调度站响应于干扰列表，接收的远程分配或其组合来调度子站的分配。 发送协调消息，包括帧结构，分配和干扰列表等。 在另一方面，可以将自组织网状网络组织成树形拓扑。 在无线回程网络的示例中，这匹配了流量。 提供了分布式的分层调度，其中父母调度与孩子的通信，同时尊重已经调度的传输到/来自干扰源和/或来自其相应子项的干扰。 描述了为分布式分层调度构建干扰约束的过程，从而在ad hoc无线网络中进行有效的调度和重用，而无需集中调度。 还公开了各种其它方面。
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