公开(公告)号：US20120083302A1

公开(公告)日：2012-04-05

申请号：US13326062

申请日：2011-12-14

申请人： Mohammad Jaber Borran ,  Alexei Gorokhov ,  Aamod Khandekar ,  Tingfang Ji ,  Arumugam Chendamarai Kannan

发明人： Mohammad Jaber Borran ,  Alexei Gorokhov ,  Aamod Khandekar ,  Tingfang Ji ,  Arumugam Chendamarai Kannan

IPC分类号： H04B15/00 ,  H04W72/00

CPC分类号： H04W72/082

摘要： Systems and methods that facilitate management of interference and communication resources are provided. A differential approach is devised in which other-sector interference (OSI) and communication resources are managed by adjusting an offset (delta) value associated with the resources in response to receiving an indication of other-sector interference. An OSI indication can be issued based on a short and a long time scale, and effective interference metrics over time-frequency resources. The adjusted delta value is communicated to a serving access point, which reassigns communication resources in order to mitigate other-sector interference.

摘要翻译： 提供了便于管理干扰和通信资源的系统和方法。 设计出差分方法，其中响应于接收到其他扇区干扰的指示，通过调整与资源相关联的偏移量（delta）值来管理其他扇区干扰（OSI）和通信资源。 可以基于短时间和长时间尺度发出OSI指示，并且可以根据时间 - 频率资源发出有效的干扰度量。 经调整的增量值被传送到服务接入点，服务接入点重新分配通信资源以便减轻其他扇区干扰。

公开(公告)号：US20120063293A1

公开(公告)日：2012-03-15

申请号：US13212114

申请日：2011-08-17

申请人： Aamod Khandekar ,  Alexei Gorokhov ,  Naga Bhushan

发明人： Aamod Khandekar ,  Alexei Gorokhov ,  Naga Bhushan

IPC分类号： H04W36/00 ,  H04J11/00

CPC分类号： H04J13/0048 ,  H04B2001/70935 ,  H04B2201/70707 ,  H04W36/08 ,  H04W48/16 ,  H04W74/0833

摘要： A method includes scrambling a Walsh sequence with a random sequence to produce a scrambled Walsh sequence. The method also includes transmitting the scrambled Walsh sequence as an access-based handoff probe.

摘要翻译： 一种方法包括用随机序列对沃尔什序列进行加扰以产生加扰沃尔什序列。 该方法还包括发送加扰的沃尔什序列作为基于接入的切换探测。

公开(公告)号：US08078135B2

公开(公告)日：2011-12-13

申请号：US12091468

申请日：2006-10-27

申请人： Rajat Prakash ,  Fatih Ulupinar ,  Edward Harrison Teague ,  Arak Sutivong ,  Aamod Khandekar ,  Alexei Gorokhov

发明人： Rajat Prakash ,  Fatih Ulupinar ,  Edward Harrison Teague ,  Arak Sutivong ,  Aamod Khandekar ,  Alexei Gorokhov

IPC分类号： H04M11/00

CPC分类号： H04W52/0235 ,  H04B17/318 ,  H04B17/382 ,  H04L1/0003 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/0675 ,  H04L27/2647 ,  H04L41/0803 ,  H04L41/083 ,  H04L41/0869 ,  H04W24/10 ,  H04W88/02 ,  Y02D30/32 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162

摘要： A method and apparatus for transmitting and processing a QuickChannelInfo block is described. A plurality of superframe indices are determined, and a QuickChannelInfo block is transmitted to an access terminal in the superframe with an odd superframe index. The contents of the QuickChannelInfo block are changed in accordance with a QuickChannelInfo Validity field of the QuickChannelInfo block. It is determined if a multi-carrier mode of a protocol is MultiCarrierOn. The QuickChannelInfo block is transmitted on each carrier of the protocol. The QuickChannelInfo block is transmitted to the access terminal over a communication link. The QuickChannelInfo block is processed after the QuickChannelInfo block is received at the access terminal over the communication link.

摘要翻译： 描述用于发送和处理QuickChannelInfo块的方法和装置。 确定多个超帧索引，并且使用奇数超帧索引将QuickChannelInfo块发送到超帧中的接入终端。 QuickChannelInfo块的内容根据QuickChannelInfo块的QuickChannelInfo Validity字段进行更改。 确定协议的多载波模式是MultiCarrierOn。 QuickChannelInfo块在协议的每个载波上传输。 QuickChannelInfo块通过通信链路发送到接入终端。 在通过通信链路在接入终端接收到QuickChannelInfo块之后处理QuickChannelInfo块。

公开(公告)号：US20110255522A9

公开(公告)日：2011-10-20

申请号：US11768135

申请日：2007-06-25

申请人： Alexei Gorokhov ,  Aamod Khandekar ,  Mohammad Borran ,  Rajat Prakash

发明人： Alexei Gorokhov ,  Aamod Khandekar ,  Mohammad Borran ,  Rajat Prakash

IPC分类号： H04Q7/24

CPC分类号： H04L1/0045 ,  H04L1/0061 ,  H04L1/0072 ,  H04L1/0078

摘要： Various methods and systems receiving information from an access point over a wireless link in order to reduce processing and/or transmission overhead are disclosed. Such methods and systems may include the processing of a received packet using a descrambling operation on at least a portion of the packet's information based on a MAC-ID associated with an access terminal to produce at least a first processed packet, and determining whether the received packet is targeted to the access terminal based on the first processed packet.

摘要翻译： 公开了通过无线链路从接入点接收信息以减少处理和/或传输开销的各种方法和系统。 这样的方法和系统可以包括基于与接入终端相关联的MAC-ID，使用对分组信息的至少一部分的解扰操作来处理接收到的分组，以产生至少第一处理分组，以及确定是否接收到 分组基于第一处理分组被定向到接入终端。

公开(公告)号：US20100046447A1

公开(公告)日：2010-02-25

申请号：US12446689

申请日：2007-10-26

申请人： Ravi Palanki ,  Alexei Gorokhov ,  Aamod Khandekar ,  Avneesh Agrawal

发明人： Ravi Palanki ,  Alexei Gorokhov ,  Aamod Khandekar ,  Avneesh Agrawal

IPC分类号： H04W72/04

CPC分类号： H04L27/261 ,  H04W28/00 ,  H04W72/04

摘要： Beacon symbols are sent periodically from the base stations in an OFDM system. The entire power of the base station, or a large portion of it is concentrated in these symbols, thus they are very easily recognized by the mobile stations. The frequencies upon which these symbols are transmitted and the time at which they are transmitted communicates information such as the base station/sector identity and the preferred carrier of the given base station/sector to the mobile station. In order to avoid collision between the beacon symbols of different base stations and sectors, the beacon symbols from different base stations/sectors are transmitted at different symbols times and on different subcarriers.

摘要翻译： 信标符号在OFDM系统中从基站周期性地发送。 基站的整个功率或其大部分集中在这些符号中，因此它们被移动台非常容易地识别。 发送这些符号的频率和它们被发送的时间将诸如基站/扇区标识和给定基站/扇区的优选载波的信息传送给移动站。 为了避免不同基站和扇区的信标符号之间的冲突，来自不同基站/扇区的信标符号在不同的符号时间和不同子载波上发送。

公开(公告)号：US07616711B2

公开(公告)日：2009-11-10

申请号：US11022360

申请日：2004-12-22

申请人： Dhananjay Ashok Gore ,  Avneesh Agrawal ,  Aamod Khandekar ,  Alexei Gorokhov

发明人： Dhananjay Ashok Gore ,  Avneesh Agrawal ,  Aamod Khandekar ,  Alexei Gorokhov

IPC分类号： H03D1/00 ,  H04L27/06

CPC分类号： H04L27/2647 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/006 ,  H04L25/022 ,  H04L25/0226 ,  H04L25/023

摘要： A channel estimation system comprises a filtering component that selectively scales a plurality of carriers as a function of location of the plurality of carriers within a frequency band, wherein the plurality of carriers comprises at least one data carrier and at least one pilot carrier. A component thereafter extrapolates an observation from the at least one pilot carrier, wherein a channel is estimated as a function of the extrapolated observation. The scaling of the carriers facilitates reducing a flooring effect associated with channel estimation. The filtering component can be employed at a transmitter and/or at a receiver, and can be activated and/or deactivated as a function of a sensed data packet type.

摘要翻译： 信道估计系统包括：滤波部件，其选择性地按照频带内的多个载波的位置来缩放多个载波，其中所述多个载波包括至少一个数据载波和至少一个导频载波。 然后，组件从至少一个导频载波外推观测，其中，估计信道作为外推观测的函数。 载波的缩放有助于减少与信道估计相关的地板效应。 滤波组件可以在发射机和/或接收机处采用，并且可以作为感测数据分组类型的功能被激活和/或去激活。

公开(公告)号：US20090197629A1

公开(公告)日：2009-08-06

申请号：US12262022

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： H04B7/00

CPC分类号： H04W72/048 ,  H04W52/242 ,  H04W52/243 ,  H04W52/28 ,  H04W52/325 ,  H04W52/34

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 receive a message sent by a second station to request reduction of interference on at least one resource. In response to receiving the message, the first station may determine a first transmit power level to use for the at least one resource based on one or more factors such as a priority metric sent in the message, the buffer size at the first station, etc. The first station may send a power decision pilot on the at least one resource at a second transmit power level determined based on the first transmit power level.

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）可以接收由第二站发送的消息以请求减少对至少一个资源的干扰。 响应于接收到消息，第一站可以基于一个或多个因素来确定用于至少一个资源的第一发射功率电平，诸如消息中发送的优先级度量，第一站的缓冲器大小等 第一站可以基于第一发射功率电平确定的第二发射功率电平在所述至少一个资源上发送功率决定导频。

公开(公告)号：US20090197588A1

公开(公告)日：2009-08-06

申请号：US12260849

申请日：2008-10-29

申请人： Aamod Khandekar ,  Avneesh Agrawal ,  Ashwin Sampath ,  Gavin B. Horn ,  Alexei Gorokhov ,  Naga Bhushan ,  Tingfang Ji

发明人： Aamod Khandekar ,  Avneesh Agrawal ,  Ashwin Sampath ,  Gavin B. Horn ,  Alexei Gorokhov ,  Naga Bhushan ,  Tingfang Ji

IPC分类号： H04W4/00 ,  H04B1/00

CPC分类号： H04W72/082 ,  H04W52/243 ,  H04W72/0426 ,  H04W84/045 ,  H04W92/20 ,  Y02D70/00

摘要： Providing for interference reduction and/or avoidance utilizing backhaul signaling between wireless access points (APs) of a wireless access network (AN) is described herein. By way of example, an interference avoidance request (IAR) can be issued by an AP to reduce signal interference on forward link (FL) and/or downlink (DL) transmissions by neighboring APs. The IAR can be routed via a backhaul network and/or over-the-air via access terminals (ATs) coupled with the AP or one or more interfering APs. Upon receiving the IAR, an interfering AP can determine reduced transmit power levels for FL and/or RL transmissions and respond to the IAR. The response can include reduced power levels and can be sent via the backhaul network or OTA. By employing the backhaul network in full or in part, interference avoidance can be conducted even for semi-planned or unplanned heterogeneous networks coupled by the backhaul.

摘要翻译： 本文描述了在无线接入网络（AN）的无线接入点（AP）之间利用回程信令来提供减少干扰和/或避免的干扰。 作为示例，AP可以发出干扰避免请求（IAR），以减少相邻AP在前向链路（FL）和/或下行链路（DL）传输上的信号干扰。 IAR可以经由回程网络和/或通过与AP或一个或多个干扰AP耦合的接入终端（AT）进行路由。 在接收到IAR时，干扰AP可以确定用于FL和/或RL传输的降低的发射功率电平并响应于IAR。 响应可以包括降低的功率级别，并且可以通过回程网络或OTA发送。 通过全面或部分采用回程网络，即使对于通过回程耦合的半计划或计划外异构网络，也可以进行干扰回避。

公开(公告)号：US20080181181A1

公开(公告)日：2008-07-31

申请号：US11945559

申请日：2007-11-27

申请人： Alexei Gorokhov ,  Arnab Das ,  Aamod Khandekar ,  Junyi Li

发明人： Alexei Gorokhov ,  Arnab Das ,  Aamod Khandekar ,  Junyi Li

IPC分类号： H04B7/216

CPC分类号： H04W48/08 ,  H04B1/707 ,  H04B2201/70701 ,  H04L5/0016 ,  H04L5/0053 ,  H04W72/02

摘要： Systems and methodologies are described that facilitate communicating reverse link control information over OFDMA control channel(s) and CDMA control channel(s). Dedicated OFDMA control channel resources can be assigned to mobile device(s). Control information related to one or more logical control channels can be generated by a mobile device. Further, a physical control channel type (e.g., OFDMA control channel or a CDMA control channel) can be selected for sending the control information via the reverse link. For example, control information associated with periodic, logical control channels can be multiplexed and sent over the OFDMA control channel (e.g., utilizing the dedicated OFDMA control channel resources) while control information related to non-periodic, logical control channels can be transmitted over the CDMA control channel.

公开(公告)号：US20080167040A1

公开(公告)日：2008-07-10

申请号：US11968642

申请日：2008-01-02

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： H04Q7/20

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.

摘要翻译： 描述用于在无线通信系统中发送控制信息的技术。 控制段可以包括L> = 1瓦片，并且每个瓦片可以包括多个传输单元。 可以将多个控制资源定义并映射到控制段的传输单元。 对于对称映射，可以形成多组S> = 1控制资源，并且每L批连续的S个控制资源组可以被映射到L个瓦片中相同位置处的S个传输单元。 对于局部映射，S> 1，并且每组S个控制资源可以被映射到一个瓦片中的S个相邻传输单元的簇。 对于分布式映射，S = 1，并且每个控制资源可以映射到一个瓦片中的一个传输单元。 对于分集，每个控制资源可以映射到至少一个瓦片中的多个（例如，三个）传输单元。