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    MULTIPLEXING OF FEEDBACK CHANNELS IN A WIRELESS COMMUNICATION SYSTEM
    91.
    发明申请
    MULTIPLEXING OF FEEDBACK CHANNELS IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
    反馈通道在无线通信系统中的多路复用

    公开(公告)号：US20080225792A1

    公开(公告)日：2008-09-18

    申请号：US12044844

    申请日：2008-03-07

    申请人： Ayman Fawzy Naguib ,  Tingfang Ji

    发明人： Ayman Fawzy Naguib ,  Tingfang Ji

    IPC分类号： H04Q7/00

    CPC分类号： H04L27/2602 ,  H04L5/0007 ,  H04L5/0053

    摘要： Techniques for sending signaling in a wireless communication system are described. Multiple feedback channels may be multiplexed such that they can share time frequency resources. Each feedback channel may be allocated a different subset of subcarriers in each of at least one tile. In one design, a subscriber station may determine time frequency resources including first and second portions of time frequency resources for first and second feedback channels, respectively. The subscriber station may send vectors of modulation symbols of a first length on the first feedback channel and/or vectors of modulation symbols of a second length on the second feedback channel. A base station may receive the first and second feedback channels and may perform detection on vectors of received symbols for each feedback channel to recover the signaling sent on that feedback channel.

    摘要翻译： 描述了在无线通信系统中发送信令的技术。 可以复用多个反馈信道，使得它们可以共享时间频率资源。 每个反馈信道可以在至少一个瓦片中的每一个中分配不同子载波子集。 在一种设计中，订户站可以分别确定包括用于第一和第二反馈信道的时间频率资源的第一和第二部分的时间频率资源。 订户站可以在第一反馈信道上发送第一长度的调制符号向量和/或在第二反馈信道上发送第二长度的调制符号向量。 基站可以接收第一和第二反馈信道，并且可以对每个反馈信道的接收符号的向量执行检测，以恢复在该反馈信道上发送的信令。

    METHOD AND APPARTUS FOR ADJUSTMENTS FOR DELTA-BASED POWER CONTROL IN WIRELESS COMMUNICATION SYSTEMS
    92.
    发明申请
    METHOD AND APPARTUS FOR ADJUSTMENTS FOR DELTA-BASED POWER CONTROL IN WIRELESS COMMUNICATION SYSTEMS 失效
    用于无线通信系统中基于DELTA的功率控制调整的方法和装置

    公开(公告)号：US20080161033A1

    公开(公告)日：2008-07-03

    申请号：US11848865

    申请日：2007-08-31

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

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

    IPC分类号： H04B7/06

    CPC分类号： H04W24/02 ,  H04W52/16 ,  H04W52/243 ,  H04W52/44

    摘要： Systems and methodologies are described that provide techniques for performing adjustments for delta-based power control and interference management in a wireless communication system. A terminal can utilize one or more delta-based power control techniques described herein upon engaging in a reverse link transmission after a predetermined period of silence or after receiving indications of interference from neighboring access points. A delta value can be computed through open-loop projection, based on which transmission resources such as bandwidth and/or transmit power can be increased or decreased to manage interference caused by the terminal. A delta value, other feedback from the terminal, and/or indications of interference caused by the terminal can also be communicated as feedback to a serving access point to allow the access point to assign transmission resources for the terminal.

    摘要翻译： 描述了提供用于在无线通信系统中执行基于增量的功率控制和干扰管理的调整的技术的系统和方法。 在预定的静默期之后或在接收到来自相邻接入点的干扰的指示之后，终端可以利用本文所述的一个或多个基于增量的功率控制技术参与反向链路传输。 可以通过开环投影来计算增量值，基于可以增加或减少诸如带宽和/或发射功率的传输资源来管理由终端引起的干扰。 来自终端的增量值，其他反馈和/或由终端引起的干扰的指示也可以作为反馈传送到服务接入点，以允许接入点为终端分配传输资源。

    RECOVERY FROM RESOURCE MISMATCH IN A WIRELESS COMMUNICATION SYSTEM
    93.
    发明申请
    RECOVERY FROM RESOURCE MISMATCH IN A WIRELESS COMMUNICATION SYSTEM 有权
    在无线通信系统中恢复资源错配

    公开(公告)号：US20080123520A1

    公开(公告)日：2008-05-29

    申请号：US11849646

    申请日：2007-09-04

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

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

    IPC分类号： H04J3/14

    CPC分类号： H04W72/1252

    摘要： System(s) and method(s) that facilitate assignment mismatch recovery are provided. A projected level of resources required to satisfy one or more communication constraints (e.g., inter-cell and intra-cell interference) is generated. The projected resources are contrasted with scheduled resources and a determination is made as to whether a mismatch between assigned and projected resources exists. A mismatch is recovered through an adaptive response that feeds back magnitudes for the communication resources which are compatible with the communication constraints.

    摘要翻译： 提供了有助于分配失配恢复的系统和方法。 产生满足一个或多个通信约束（例如，小区间和小区内干扰）所需的预计资源量。 预计资源与预定的资源形成对照，并确定是否存在分配和预计资源之间的不匹配。 通过自适应响应恢复不匹配，该自适应响应反馈与通信约束兼容的通信资源的幅度。

    Systems and methods for providing adaptive pulse position modulated code division multiple access for ultra-wideband communication links
    97.
    发明授权
    Systems and methods for providing adaptive pulse position modulated code division multiple access for ultra-wideband communication links 有权
    为超宽带通信链路提供自适应脉冲位置调制码分多址的系统和方法

    公开(公告)号：US07187715B2

    公开(公告)日：2007-03-06

    申请号：US10252351

    申请日：2002-09-23

    申请人： Krishna Balachandran ,  Doru Calin ,  Tingfang Ji ,  Joseph H. Kang

    发明人： Krishna Balachandran ,  Doru Calin ,  Tingfang Ji ,  Joseph H. Kang

    IPC分类号： H04B14/04

    CPC分类号： H04B1/7176 ,  H04B2001/6908 ,  H04L25/4902

    摘要： An adaptive pulse position modulated CDMA scheme for use in UWB communications systems is disclosed. A stream of input bits is encoded with spreading code sequence. The spreading code sequence consists of a number of code elements that may have one of two values. Each bit is encoded into a symbol consisting of a predefined number of chips, which are transmitted during a symbol period. Next, at least one code element is associated with each chip in the symbol. Then, an encoded pulse is generated in each chip. Each encoded pulse has a value determined by multiplying the data bit with the code value associated with the particular chip. The encoded pulse is then pulse position modulated by shifting the position of the pulse to a first position or a second position within the chip depending upon the encoded value of the pulse.

    摘要翻译： 公开了一种用于UWB通信系统的自适应脉冲位置调制CDMA方案。 输入比特流用扩展码序列编码。 扩展码序列由可能具有两个值之一的多个代码元素组成。 每个位被编码成由符号周期内发送的预定数量的芯片组成的符号。 接下来，至少一个代码元素与符号中的每个芯片相关联。 然后，在每个芯片中产生编码脉冲。 每个编码脉冲具有通过将数据位与与特定芯片相关联的代码值相乘确定的值。 然后根据脉冲的编码值，将脉冲的位置移位到芯片内的第一位置或第二位置，从而进行脉冲位置调制。

    Power control and overlapping control for a quasi-orthogonal communication system
    100.
    发明申请
    Power control and overlapping control for a quasi-orthogonal communication system 有权

    公开(公告)号：US20060211441A1

    公开(公告)日：2006-09-21

    申请号：US11158587

    申请日：2005-06-21

    申请人： Murat Mese ,  Ayman Naguib ,  Arak Sutivong ,  Dhananjay Gore ,  Alexei Gorokhov ,  Tingfang Ji

    发明人： Murat Mese ,  Ayman Naguib ,  Arak Sutivong ,  Dhananjay Gore ,  Alexei Gorokhov ,  Tingfang Ji

    IPC分类号： H04B7/00

    CPC分类号： H04W52/243 ,  H04W52/34

    摘要： Techniques for controlling transmit power and the amount of overlapping in a quasi-orthogonal system are described. A base station for a sector receives transmissions from terminals in that sector and neighbor sectors and determines performance metrics (e.g., overall throughput) and/or QoS metrics (e.g., minimum data rate) for the terminals in the sector. The base station updates an overlapping factor based on the performance metrics and updates a QoS power control parameter based on the QoS metrics. The overlapping factor indicates the average number of overlapping transmissions sent simultaneously on each time-frequency block usable for data transmission. The QoS power control parameter ensures that the terminals in the sector can achieve minimum QoS requirements. A power control mechanism with multiple loops is used to adjust the transmit power of each terminal. The overlapping factor and QoS power control parameter are updated by two of the loops.