公开(公告)号：US09265048B2

公开(公告)日：2016-02-16

申请号：US12483623

申请日：2009-06-12

申请人： Ashwin Sampath ,  Aamod D. Khandekar ,  Alexei Y. Gorokhov ,  Mohammad J. Borran ,  Naga Bhushan ,  Ravi Palanki

发明人： Ashwin Sampath ,  Aamod D. Khandekar ,  Alexei Y. Gorokhov ,  Mohammad J. Borran ,  Naga Bhushan ,  Ravi Palanki

IPC分类号： H04W72/08

CPC分类号： H04W72/082

摘要： Systems and methodologies are described that facilitate indicating a dominant interferer to a target serving base station in a wireless communication environment. A mobile device can detect presence or absence of a dominant interferer. Further, an access probe that includes information related to the presence or absence of the dominant interferer can be generated. For example, the information can be included in a payload of the access probe as an explicit flag, an explicit indication of an interference level, a Channel Quality Indicator (CQI) value (e.g., reserved versus non-reserved, . . . ), etc. Moreover, the access probe can be transmitted to the target serving base station to initiate an access procedure. The target serving base station can select a time-frequency resource to be utilized for a responsive downlink transmission (e.g. access grant signal, subsequent access related message, . . . ) as a function of the information included in the access probe.

摘要翻译： 描述了有助于在无线通信环境中向目标服务基站指示主要干扰源的系统和方法。 移动设备可以检测显着干扰源的存在或不存在。 此外，可以生成包括与显着干扰源的存在或不存在有关的信息的访问探针。 例如，信息可以包括在接入探测器的有效载荷中作为显式标志，干扰级别的显式指示，信道质量指示符（CQI）值（例如，保留与非保留的...）， 此外，可以将接入探针发送到目标服务基站以发起接入过程。 目标服务基站可以根据包括在接入探测器中的信息来选择要用于响应下行链路传输（例如接入许可信号，后续接入相关消息，...）的时间 - 频率资源。

公开(公告)号：US09264976B2

公开(公告)日：2016-02-16

申请号：US12260856

申请日：2008-10-29

申请人： Aamod Khandekar ,  Alexei Gorokhov ,  Naga Bhushan ,  Ravi Palanki ,  Ashwin Sampath ,  Avneesh Agrawal

发明人： Aamod Khandekar ,  Alexei Gorokhov ,  Naga Bhushan ,  Ravi Palanki ,  Ashwin Sampath ,  Avneesh Agrawal

IPC分类号： H04W48/08

CPC分类号： H04W48/08

摘要： Providing for management of wireless communications in a heterogeneous wireless access point (AP) environment is described herein. By way of example, system data of an over-the-air message can be configured to include information identifying a distinct type of transmitting base station. In some aspects, the information can include an access type of the base station and/or a sector ID for distinguishing the base station among large numbers of other base stations. According to other aspects, the information can include wireless channel resources designated for a particular type of base station, or blanked by the transmitting base station, to facilitate interference reduction on such resources. By employing aspects of wireless communication management disclosed herein, efficient and reliable communication can be affected in large heterogeneous AP networks.

摘要翻译： 本文描述了在异构无线接入点（AP）环境中的无线通信的管理。 作为示例，空中消息的系统数据可以被配置为包括标识不同类型的发送基站的信息。 在一些方面，信息可以包括基站的接入类型和/或用于区分大量其他基站中的基站的扇区ID。 根据其他方面，信息可以包括为特定类型的基站指定的无线信道资源，或者由发射基站消隐，以便于对这些资源进行干扰减少。 通过采用这里公开的无线通信管理的方面，可以在大型异构AP网络中影响高效可靠的通信。

公开(公告)号：US09203564B2

公开(公告)日：2015-12-01

申请号：US12580872

申请日：2009-10-16

申请人： Ravi Palanki ,  Kapil Bhattad ,  Naga Bhushan ,  Aamod D. Khandekar ,  Tingfang Ji ,  Juan Montojo

发明人： Ravi Palanki ,  Kapil Bhattad ,  Naga Bhushan ,  Aamod D. Khandekar ,  Tingfang Ji ,  Juan Montojo

IPC分类号： H04L1/18 ,  H04B7/26

CPC分类号： H04L1/1867 ,  H04B7/2606

摘要： Techniques for supporting data transmission via a relay station are described. In an aspect, data transmission may be supported using ACK-and-suspend. A transmitter station sends a first transmission of a packet to a receiver station. The transmitter station receives no ACK information for the first transmission of the packet and suspends transmission of the packet. The transmitter station thereafter receives an indication to resume transmission of the packet and, in response, sends a second transmission of the packet. In another aspect, different ACK timeline may be used when applicable. The receiver station may send ACK information in a designated subframe if available for use or in a different subframe. In yet another aspect, ACK repetition may be used. The receiver may send ACK information in multiple subframes to facilitate reception of the ACK information when the transmitter station is unable to receive one or more of the multiple subframes.

摘要翻译： 描述了通过中继站支持数据传输的技术。 在一方面，可以使用ACK和挂起来支持数据传输。 发送站发送分组的第一次发送到接收站。 发送台不接收用于分组的第一次发送的ACK信息，并且暂停分组的发送。 然后，发送站接收到恢复分组的发送的指示，并且作为响应，发送分组的第二发送。 在另一方面，当适用时可以使用不同的ACK时间线。 接收站可以在指定的子帧中发送ACK信息，如果可以使用或在不同的子帧中。 在另一方面，可以使用ACK重复。 接收机可以在多个子帧中发送ACK信息，以便当发射机站不能接收多个子帧中的一个或多个时，接收ACK信息。

公开(公告)号：US08849316B2

公开(公告)日：2014-09-30

申请号：US12198833

申请日：2008-08-26

申请人： Gavin B. Horn ,  Avneesh Agrawal ,  Ashwin Sampath ,  Alexei Gorokhov ,  Naga Bhushan ,  Rajarshi Gupta ,  Fatih Ulupinar ,  Parag A. Agashe ,  Rajat Prakash ,  Aamod Khandekar ,  Ravi Palanki

发明人： Gavin B. Horn ,  Avneesh Agrawal ,  Ashwin Sampath ,  Alexei Gorokhov ,  Naga Bhushan ,  Rajarshi Gupta ,  Fatih Ulupinar ,  Parag A. Agashe ,  Rajat Prakash ,  Aamod Khandekar ,  Ravi Palanki

IPC分类号： H04W68/00 ,  H04W48/08

CPC分类号： H04W48/08 ,  H04W68/00

摘要： Signaling-only access may be established with an access node under certain circumstances such as, for example, upon determining that a node is not authorized for data access at the access node. A node that is not authorized for data access at an access node may still be paged by the access node through the use of signaling-only access. In this way, transmissions by the access node may not interfere with the reception of pages at the node. A first node may be selected for providing paging while a second node is selected for access under certain circumstances such as, for example, upon determining that the second node provides more desirable service than the first node.

摘要翻译： 在某些情况下，例如在确定节点未被授权用于访问节点处的数据访问时，可以与接入节点建立仅信令访问。 在访问节点处未被授权用于数据访问的节点仍然可以由接入节点通过使用仅信令接入进行寻呼。 以这种方式，接入节点的传输可能不干扰节点处的页面的接收。 可以选择第一节点来提供寻呼，而在某些情况下例如在确定第二节点提供比第一节点更理想的服务时，第二节点被选择用于接入。

公开(公告)号：US08843069B2

公开(公告)日：2014-09-23

申请号：US12262013

申请日：2008-10-30

申请人： Mohammad J. Borran ,  Aamod Khandekar ,  Naga Bhushan ,  Ashwin Sampath ,  Alexei Gorokhov ,  Avneesh Agrawal ,  Ravi Palanki ,  Gavin B. Horn

发明人： Mohammad J. Borran ,  Aamod Khandekar ,  Naga Bhushan ,  Ashwin Sampath ,  Alexei Gorokhov ,  Avneesh Agrawal ,  Ravi Palanki ,  Gavin B. Horn

IPC分类号： H04W28/00 ,  H04W52/24 ,  H04B17/00 ,  H04B7/06

CPC分类号： H04W52/243 ,  H04B7/0617 ,  H04B17/382 ,  H04W52/247

摘要： Techniques for transmitting data with short-term interference mitigation in a wireless communication system are described. In one design, a first station (e.g., a base station or a terminal) may send a first message to at least one interfering station to request reduction of interference on at least one resource. The first station may send the first message in anticipation of receiving data on the at least one resource. An interfering station may receive the first message from the first station and may reduce interference on the at least one resource by reducing its transmit power and/or by steering its power in a direction different from the first station. The first station may thereafter receive data from a second station on the at least one resource. The techniques may be used for data transmission on the forward and reverse links.

摘要翻译： 描述了在无线通信系统中发送具有短期干扰抑制的数据的技术。 在一种设计中，第一站（例如，基站或终端）可以向至少一个干扰站发送第一消息，以请求减少对至少一个资源的干扰。 第一站可以发送第一消息以预期在至少一个资源上接收数据。 干扰站可以从第一站接收第一消息，并且可以通过减少其发射功率和/或通过在与第一站不同的方向上转向其功率来减少对至少一个资源的干扰。 此后，第一站可以在至少一个资源上从第二站接收数据。 这些技术可以用于前向和反向链路上的数据传输。

公开(公告)号：US08693444B2

公开(公告)日：2014-04-08

申请号：US13465943

申请日：2012-05-07

申请人： Aamod Khandekar ,  Alexei Gorokhov ,  Naga Bhushan ,  Sandip Sarkar ,  Ravi Palanki

发明人： Aamod Khandekar ,  Alexei Gorokhov ,  Naga Bhushan ,  Sandip Sarkar ,  Ravi Palanki

IPC分类号： H04B7/216 ,  H04W72/04 ,  H04B1/713 ,  H04W72/08 ,  H04L5/00 ,  H04B7/26

CPC分类号： H04W72/04 ,  H04B1/713 ,  H04B7/2621 ,  H04L1/1692 ,  H04L5/0053 ,  H04W52/146 ,  H04W52/16 ,  H04W52/243 ,  H04W52/247 ,  H04W52/362 ,  H04W52/60 ,  H04W72/08

摘要： Techniques for sending control information in a wireless communication system are described. A control segment may include L≧1 tiles, and each tile may include a number of transmission units. A number of control resources may be defined and mapped to the transmission units for the control segment. For symmetric mapping, multiple sets of S≧1 control resources may be formed, and each batch of L consecutive sets of S control resources may be mapped to S transmission units at the same location in the L tiles. For localized mapping, S>1, and each set of S control resources may be mapped to a cluster of S adjacent transmission units in one tile. For distributed mapping, S=1, and each control resource may be mapped to one transmission unit in one tile. For diversity, each control resource may be mapped to multiple (e.g., three) transmission units in at least one tile.

公开(公告)号：US08614975B2

公开(公告)日：2013-12-24

申请号：US12561844

申请日：2009-09-17

申请人： Ravi Palanki ,  Parag A. Agashe ,  Vikram Gupta ,  Rajarshi Gupta ,  Naga Bhushan

发明人： Ravi Palanki ,  Parag A. Agashe ,  Vikram Gupta ,  Rajarshi Gupta ,  Naga Bhushan

IPC分类号： H04W4/00 ,  H04J3/06

CPC分类号： H04W56/0015

摘要： A method for synchronizing a wireless communication system is disclosed. A silence duration for a base station is determined based on the time required for a neighbor base station to obtain or maintain synchronization. All transmissions from the base station are ceased for the silence duration. Multiple base stations level may cease transmissions at the same time, thus mitigating interference.

公开(公告)号：US08599705B2

公开(公告)日：2013-12-03

申请号：US12359612

申请日：2009-01-26

申请人： Avneesh Agrawal ,  Aamod D. Khandekar ,  Naga Bhushan ,  Alexei Y. Gorokhov ,  Ravi Palanki

发明人： Avneesh Agrawal ,  Aamod D. Khandekar ,  Naga Bhushan ,  Alexei Y. Gorokhov ,  Ravi Palanki

IPC分类号： H04L1/00 ,  H04W4/00

CPC分类号： H04W72/082 ,  H04W24/10

摘要： Techniques for managing interference in a wireless network are described. A base station may receive enhanced pilot measurement reports from user equipments (UEs) and may make an interference management decision based on the received reports. The base station may select a serving base station for a UE based on an enhanced pilot measurement report received from the UE. The base station may determine resources with a low target interference level at a neighbor base station and may avoid scheduling a UE for uplink transmission on the resources. The base station may also determine whether to reserve resources for a neighbor base station based on data performance of the neighbor base station, whether the neighbor base station observes high interference from UEs served by the base station, or whether UEs served by the neighbor base station observe high interference from the base station, which may be determined based on the enhanced pilot measurement reports.

摘要翻译： 描述了用于管理无线网络中的干扰的技术。 基站可以从用户设备（UE）接收增强的导频测量报告，并且可以基于所接收的报告进行干扰管理决定。 基站可以基于从UE接收的增强型导频测量报告来选择用于UE的服务基站。 基站可以在相邻基站处确定具有低目标干扰电平的资源，并且可以避免在资源上调度UE用于上行链路传输。 基站还可以基于邻近基站的数据性能来确定是否为相邻基站预留资源，邻近基站是否观察到来自基站所服务的UE的高干扰，或者是否由邻居基站服务的UE 观察来自基站的高干扰，其可以基于增强的导频测量报告来确定。

公开(公告)号：US08493887B2

公开(公告)日：2013-07-23

申请号：US12643845

申请日：2009-12-21

申请人： Ravi Palanki ,  Avneesh Agrawal ,  Naga Bhushan

发明人： Ravi Palanki ,  Avneesh Agrawal ,  Naga Bhushan

IPC分类号： H04L12/28 ,  H04W4/00

CPC分类号： H04W8/005 ,  H04W72/085 ,  H04W76/14

摘要： Techniques for centralized control of peer discovery pilot transmission are described. In an aspect, a designated network entity (e.g., a base station or a network controller) may control transmission of peer discovery pilots by stations located within its coverage area. In one design, the network entity may receive signaling triggering peer discovery pilot transmission. The network entity may direct each of at least one station to transmit a peer discovery pilot to allow one or more stations to detect the at least one station. The peer discovery pilot may include at least one synchronization signal or at least one reference signal. The network entity may receive pilot measurements from the one or more stations for peer discovery pilots from peer stations and/or reference signals from base stations. The network entity may determine whether or not to select peer-to-peer communication for two stations based on the pilot measurements.

摘要翻译： 描述了用于集中控制对等体发现导频传输的技术。 一方面，指定的网络实体（例如，基站或网络控制器）可以通过位于其覆盖区域内的站点来控制对等体发现导频的传输。 在一种设计中，网络实体可以接收信令触发对等体发现导频传输。 网络实体可以指示至少一个站中的每一个发送对等体发现导频，以允许一个或多个站检测至少一个站。 对等体发现导频可以包括至少一个同步信号或至少一个参考信号。 网络实体可以从一个或多个站接收来自对等站的对等体发现导频和/或来自基站的参考信号的导频测量。 网络实体可以基于导频测量来确定是否为两个站点选择对等通信。

公开(公告)号：US20100323717A1

公开(公告)日：2010-12-23

申请号：US12761224

申请日：2010-04-15

申请人： Parag Arun Agashe ,  Ravi Palanki ,  Tingfang Ji ,  Naga Bhushan

发明人： Parag Arun Agashe ,  Ravi Palanki ,  Tingfang Ji ,  Naga Bhushan

IPC分类号： H04W24/00

CPC分类号： G01S5/0045 ,  G01S1/68 ,  G01S11/06 ,  H04W64/003 ,  H04W84/045

摘要： Methods, apparatuses, and computer program products are disclosed for facilitating proximity detection in wireless networks. a location enhancement device is activated and a unique identifier associated with the location enhancement device is ascertained. A positioning signal that emulates a base station reference signal is then generated, which includes the unique identifier. The positioning signal is transmitted from the location enhancement device, wherein the positioning signal is detectable by wireless terminals proximate to the location enhancement device. Proximity detection is then facilitated by processing the positioning signal.

摘要翻译： 公开了用于促进无线网络中的接近检测的方法，装置和计算机程序产品。 激活位置增强设备并且确定与位置增强设备相关联的唯一标识符。 然后生成模拟基站参考信号的定位信号，其包括唯一标识符。 定位信号从位置增强设备发送，其中定位信号可由靠近位置增强设备的无线终端检测。 然后通过处理定位信号来促进接近检测。