公开(公告)号：US20100173637A1

公开(公告)日：2010-07-08

申请号：US12652689

申请日：2010-01-05

申请人： Jelena M. Damnjanovic ,  Naga Bhushan ,  Juan Montojo

发明人： Jelena M. Damnjanovic ,  Naga Bhushan ,  Juan Montojo

IPC分类号： H04W16/00

CPC分类号： H04W16/12 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0062 ,  H04W84/045

摘要： Systems and methodologies are described that facilitate employing fractional frequency reuse within carriers in a multicarrier heterogeneous wireless communication environment. Each carrier can be divided into a plurality of frequency reuse sets. Moreover, each of the frequency reuse sets from each carrier can be categorized as being for one of unrestricted reuse or restricted reuse. Further, a downlink transmission can be scheduled upon resources of at least a first subset of frequency reuse sets from a first carrier bandwidth and a second subset of frequency reuse sets from a second carrier bandwidth. For example, the resources can be scheduled based upon a power class of a base station, categorizations of the frequency reuse set (e.g., unrestricted reuse versus restricted reuse, . . . ), and/or received feedback related to downlink channel conditions.

摘要翻译： 描述了有助于在多载波异构无线通信环境中在载波内采用分数频率重用的系统和方法。 每个载波可以被分成多个频率重用集合。 此外，来自每个载波的每个频率重用集合可以被分类为用于无限制重用或受限重用的一个。 此外，可以根据来自第二载波带宽的来自第一载波带宽和频率重用集合的第二子集的频率重用集合的至少第一子集的资源来调度下行链路传输。 例如，可以基于基站的功率等级，频率重用集的分类（例如，不受限制的重用与限制的重用等等）和/或与下行链路信道条件相关的接收的反馈来调度资源。

公开(公告)号：US20100169498A1

公开(公告)日：2010-07-01

申请号：US12643842

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： G06F15/16

CPC分类号： H04W16/14 ,  H04W28/16 ,  H04W48/08 ,  H04W76/10 ,  H04W76/14 ,  H04W76/25 ,  H04W84/045 ,  H04W88/04 ,  H04W92/18

摘要： Techniques for centralized control of peer-to-peer (P2P) communication and centralized control of femto cell operation are described. For centralized control of P2P communication, a designated network entity (e.g., a base station) may control P2P communication of stations (e.g., UEs) located within its coverage area. The designated network entity may receive an indication of a first station (e.g., a UE) desiring to communicate with a second station (e.g., another UE). The designated network entity may determine whether or not to select peer-to-peer communication for the first and second stations, e.g., based on the quality of their communication link. The designated network entity may assign resources to the stations if peer-to-peer communication is selected. For centralized control of femto cell operation, the designated network entity may control the operation of femto cells (e.g., may activate or deactivate femto cells) within its coverage area.

摘要翻译： 描述了用于对等（P2P）通信的集中控制和毫微微小区操作的集中控制的技术。 为了集中控制P2P通信，指定网络实体（例如，基站）可以控制位于其覆盖区域内的站（例如，UE）的P2P通信。 指定网络实体可以接收期望与第二站（例如，另一个UE）通信的第一站（例如，UE）的指示。 指定网络实体可以例如基于其通信链路的质量来确定是否选择第一和第二站的对等通信。 如果选择对等通信，指定的网络实体可以向站分配资源。 为了集中控制毫微微小区操作，指定的网络实体可以控制其覆盖区域内的毫微微小区的操作（例如，可以激活或去激活毫微微小区）。

公开(公告)号：US20100165882A1

公开(公告)日：2010-07-01

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 ,  H04W8/00

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：US07746816B2

公开(公告)日：2010-06-29

申请号：US10389656

申请日：2003-03-13

申请人： Rashid Ahmed Attar ,  Naga Bhushan

发明人： Rashid Ahmed Attar ,  Naga Bhushan

IPC分类号： H04B7/185 ,  H04B7/00 ,  H04Q7/20

CPC分类号： H04W52/48 ,  H04J9/00 ,  H04W28/24 ,  H04W52/16 ,  H04W52/26 ,  H04W52/36

摘要： An apparatus and a method for power control of a channel in a communication system are disclosed.

摘要翻译： 公开了一种用于通信系统中的信道的功率控制的装置和方法。

公开(公告)号：US07738906B2

公开(公告)日：2010-06-15

申请号：US11670837

申请日：2007-02-02

申请人： Rashid Ahmed Attar ,  Naga Bhushan ,  Mingxi Fan

发明人： Rashid Ahmed Attar ,  Naga Bhushan ,  Mingxi Fan

IPC分类号： H04B7/00

CPC分类号： H04W52/34 ,  H04L1/1692 ,  H04W52/24 ,  H04W52/325 ,  H04W52/40

摘要： An apparatus and a method for a control channel power allocation in a communication system are disclosed. The method of control channel power allocation in an embodiment includes sorting a plurality of access terminals in an order of increasing required medium access control (MAC) channel power into a plurality of bins, sorting the access terminals with equal required MAC channel power in an order of decreasing forward link signal to interference and noise ratio (FL_SINR) if two or more access terminals have equal required MAC channel power, and determining total available ARQ power based upon total MAC channel power, total power allocated to reverse power control (RPC) channels, and total power allocated to reverse activity bit (RAB) channels.

摘要翻译： 公开了一种用于通信系统中的控制信道功率分配的装置和方法。 一个实施例中的控制信道功率分配的方法包括按照将所需的媒体接入控制（MAC）信道功率增加到多个小区中的顺序对多个接入终端进行排序，按照相同的所需MAC信道功率对接入终端进行排序 如果两个或多个接入终端具有相等的所需MAC信道功率，则基于总MAC信道功率，分配给反向功率控制（RPC）信道的总功率确定总可用ARQ功率，从而将前向链路信号降低到干扰和噪声比（FL_SINR） ，以及分配给反向活动位（RAB）通道的总功率。

公开(公告)号：US07734262B2

公开(公告)日：2010-06-08

申请号：US11487182

申请日：2006-07-13

申请人： Rashid Ahmed Akbar Attar ,  Donna Ghosh ,  Christopher Gerard Lott ,  Naga Bhushan

发明人： Rashid Ahmed Akbar Attar ,  Donna Ghosh ,  Christopher Gerard Lott ,  Naga Bhushan

IPC分类号： H04B1/04

CPC分类号： H04W52/34 ,  H04W52/36 ,  H04W52/367

摘要： In one embodiment, the patent application comprises an access terminal, comprising a processing unit, a memory operably connected to the processing unit, a receive circuitry operably connected to the processing unit, a transmit circuitry having a power amplifier used in both single carrier and multi-carrier operations, wherein said transmit circuitry is operably connected to the processing unit, and a throttle control unit operably connected to the power amplifier, adapted to throttle power to provide sufficient headroom for the power amplifier.

摘要翻译： 在一个实施例中，专利申请包括接入终端，包括处理单元，可操作地连接到处理单元的存储器，可操作地连接到处理单元的接收电路，具有用于单载波和多载波的功率放大器的发射电路 载波操作，其中所述发射电路可操作地连接到处理单元，以及可操作地连接到功率放大器的节气门控制单元，其适于节流功率以为功率放大器提供足够的余量。

公开(公告)号：US20100074180A1

公开(公告)日：2010-03-25

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.

摘要翻译： 公开了一种同步无线通信系统的方法。 基于相邻基站获得或维持同步所需的时间来确定基站的静默持续时间。 来自基站的所有传输在静默持续时间内停止。 多个基站级别可以同时停止传输，从而减轻干扰。

公开(公告)号：US20100056215A1

公开(公告)日：2010-03-04

申请号：US12547395

申请日：2009-08-25

申请人： Alexei Y. Gorokhov ,  Siddhartha Mallik ,  Naga Bhushan ,  Alan Barbieri

发明人： Alexei Y. Gorokhov ,  Siddhartha Mallik ,  Naga Bhushan ,  Alan Barbieri

IPC分类号： H04B1/38

CPC分类号： H04W24/02 ,  H04B7/024 ,  H04B17/382

摘要： Systems and methodologies are described that facilitate dynamically forming clusters in a wireless communication environment. A set of non-overlapping clusters can be formed dynamically over time and in a distributed manner. Each of the clusters can include a set of base stations and a set of mobile devices. The clusters can be yielded based upon a set of local strategies selected by base stations across the network converged upon through message passing. For example, each base station can select a particular local strategy as a function of time based upon network-wide utility estimates respectively conditioned upon implementation of the particular local strategy and disparate possible local strategies that can cover the corresponding base station. Moreover, operation within each of the clusters can be coordinated.

摘要翻译： 描述了促进在无线通信环境中动态形成集群的系统和方法。 一组不重叠的簇可以随着时间和分布式动态地形成。 每个群集可以包括一组基站和一组移动设备。 可以基于通过基站通过消息传递收敛的网络选择的一组局部策略来产生群集。 例如，基于分别基于特定局部策略的实施和可覆盖相应基站的不同的可能的局部策略的网络范围的效用估计，每个基站可以选择作为时间的函数的特定局部策略。 此外，可以协调每个群集内的操作。

公开(公告)号：US07609773B2

公开(公告)日：2009-10-27

申请号：US11174108

申请日：2005-06-29

申请人： Naga Bhushan ,  June Namgoong ,  Peter J. Black

发明人： Naga Bhushan ,  June Namgoong ,  Peter J. Black

IPC分类号： H04L27/28 ,  H03D1/00

CPC分类号： H04L27/2662 ,  H04L25/022 ,  H04L27/2665

摘要： In one embodiment, the invention comprises a channel estimation method, comprising determining a FFT window position, and calculating a delay spread. In another embodiment, the step of determining a FFT window position comprises setting an initial position of the FFT window, computing an energy for each tap, time averaging said energy for each tap, comparing an average energy of each tap with a first threshold multiplied by the average energy of all taps, comparing the average energy of each tap with a second threshold multiplied by a maximum average energy in alias components, updating the set of paths if the average energy of the tap is greater than said second threshold multiplied by the maximum average energy in alias components; and refining the FFT window position.

摘要翻译： 在一个实施例中，本发明包括信道估计方法，包括确定FFT窗口位置，并计算延迟扩展。 在另一个实施例中，确定FFT窗口位置的步骤包括设置FFT窗口的初始位置，计算每个抽头的能量，对每个抽头的所述能量进行平均的时间，将每个抽头的平均能量与乘以 所有抽头的平均能量，将每个抽头的平均能量与第二阈值乘以别名分量中的最大平均能量，如果抽头的平均能量大于所述第二阈值乘以最大值，则更新该组路径 别名成分中的平均能量; 并精简FFT窗口位置。

公开(公告)号：US20090264123A1

公开(公告)日：2009-10-22

申请号：US12423513

申请日：2009-04-14

申请人： Parag A. Agashe ,  Naga Bhushan

发明人： Parag A. Agashe ,  Naga Bhushan

IPC分类号： H04W24/00

CPC分类号： H04W48/20 ,  H04W36/30

摘要： Techniques for selecting a serving base station for a terminal by taking into consideration the backhaul quality of candidate base stations are described. In one design, a base station may determine backhaul quality information indicative of its current backhaul quality. The base station may send the backhaul quality information, e.g., in an overhead message sent over the air to terminals or in a backhaul message sent to neighbor base stations or a network controller. A server selection entity may receive backhaul quality information for at least one candidate base station for the terminal. The server selection entity may also determine at least one metric for each candidate base station. The server selection entity may then select the serving base station for the terminal based on the backhaul quality information and the at least one metric for the at least one candidate base station.

摘要翻译： 描述了通过考虑候选基站的回程质量来选择用于终端的服务基站的技术。 在一种设计中，基站可以确定指示其当前回程质量的回程质量信息。 基站可以发送回程质量信息，例如，在通过空中发送的开销消息中发送到终端或发送到邻近基站或网络控制器的回程消息。 服务器选择实体可以为终端的至少一个候选基站接收回程质量信息。 服务器选择实体还可以确定每个候选基站的至少一个度量。 然后，服务器选择实体可以基于回程质量信息和至少一个候选基站的至少一个度量来选择终端的服务基站。