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。

公开(公告)号：US07376209B2

公开(公告)日：2008-05-20

申请号：US10456148

申请日：2003-06-06

申请人： June Namgoong ,  Jun Ma ,  Mingxi Fan ,  Naga Bhushan ,  Peter Black

发明人： June Namgoong ,  Jun Ma ,  Mingxi Fan ,  Naga Bhushan ,  Peter Black

IPC分类号： H03D1/00 ,  H04L27/06

CPC分类号： H03M13/3927 ,  H03M13/2957 ,  H03M13/658 ,  H04L1/0045 ,  H04L1/0066 ,  H04L1/1812 ,  H04L1/1825 ,  Y10S370/912

摘要： A method and an apparatus for scaling demodulated data symbols contained in a packet to generate scaled log-likelihood ratios for Turbo decoding are disclosed. A packet consists of one or more subpackets depending on the type of packet. Each subpacket is identified by a subpacket identification number. The payload size of the packet and the subpacket identification number may be determined by decoding a reverse rate indicator (RRI) channel. A scale factor which is associated with a specific subpacket identification number and a specific payload size results in a performance measure that is closest to an expected performance measure. The scale factor is used for scaling the demodulated data symbols to generate scaled log-likelihood ratios for Turbo decoding.

摘要翻译： 公开了一种用于缩放分组中包含的解调数据符号以产生用于Turbo解码的缩放对数似然比的方法和装置。 数据包由一个或多个子数据包组成，具体取决于数据包的类型。 每个子分组由子分组标识号码标识。 可以通过解码反向速率指示符（RRI）信道来确定分组的有效载荷大小和子分组标识号码。 与特定子分组标识号和特定有效载荷大小相关联的比例因子导致最接近预期性能测量的性能度量。 缩放因子用于缩放解调的数据符号以产生用于Turbo解码的缩放的对数似然比。

公开(公告)号：US20070268848A1

公开(公告)日：2007-11-22

申请号：US11748878

申请日：2007-05-15

申请人： Aamod Khandekar ,  Naga Bhushan

发明人： Aamod Khandekar ,  Naga Bhushan

IPC分类号： H04L5/14 ,  H04L5/16

CPC分类号： H04B7/2656 ,  H04B7/2628

摘要： Systems and methodologies are described that provide half-duplex communication in a frequency division duplex (FDD) system. Communications in an FDD system may be divided into half-duplex interlaces, wherein a terminal may receive at one time period and transmit at another time period. An access network in an FDD system may then utilize half-duplex communication to communicate with an access terminal that is not capable of transmitting and receiving simultaneously by using a half-duplex interlace. Further, an access network may also utilize full-duplex communication to communicate with an access terminal that is capable of transmitting and receiving simultaneously.

摘要翻译： 描述了在频分双工（FDD）系统中提供半双工通信的系统和方法。 FDD系统中的通信可以被划分为半双工交错，其中终端可以在一个时间段接收并在另一时间段进行发送。 然后，FDD系统中的接入网络可以利用半双工通信来与不能够通过使用半双工交错同时进行发送和接收的接入终端进行通信。 此外，接入网络还可以利用全双工通信来与能够同时发送和接收的接入终端进行通信。

公开(公告)号：US20070195899A1

公开(公告)日：2007-08-23

申请号：US11676952

申请日：2007-02-20

申请人： Naga Bhushan ,  Alexei Gorokhov

发明人： Naga Bhushan ,  Alexei Gorokhov

IPC分类号： H04K1/10

CPC分类号： H04L5/1438 ,  H04B7/0452 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0639 ,  H04J13/0044 ,  H04L1/0002 ,  H04L1/0025 ,  H04L1/0028 ,  H04L1/06 ,  H04L1/1671 ,  H04L1/1812 ,  H04L5/0026 ,  H04L5/0048 ,  H04L5/023 ,  H04L25/0204 ,  H04L25/0206 ,  H04L25/0226 ,  H04L27/2613 ,  H04W28/06 ,  H04W28/18 ,  H04W48/08 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/144 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/444

摘要： Techniques for efficiently sending data in a wireless communication system are described. Time frequency resources available for orthogonal frequency division multiplexing (OFDM), which exclude time frequency resources used for traffic data and signaling sent with code division multiplexing (CDM), may be determined. The time frequency resources available for OFDM may be partitioned into multiple tiles. Each tile may be defined based on multiple OFDM symbol numerologies and may have a non-rectangular shape. Each terminal may be assigned at least one tile. A pilot pattern may be selected for each terminal from among multiple pilot patterns, which may support different delay spreads, spatial ranks, etc. Data and pilot may be exchanged with each terminal via the time frequency resources in the at least one tile assigned to the terminal. OFDM symbols may be processed based on multiple OFDM symbol numerologies for each assigned tile.

摘要翻译： 描述用于在无线通信系统中有效发送数据的技术。 可以确定可用于正交频分复用（OFDM）的时间频率资源，其排除用于业务数据的时间频率资源和用码分多路复用（CDM）发送的信令。 可用于OFDM的时间频率资源可以被划分为多个瓦片。 可以基于多个OFDM符号数学来定义每个瓦片，并且可以具有非矩形形状。 每个终端可以被分配至少一个瓦片。 可以从多个导频模式中的每个终端选择导频模式，这可以支持不同的延迟扩展，空间等级等。数据和导频可以经由分配给该终端的至少一个瓦片中的时间频率资源与每个终端进行交换 终奌站。 可以基于每个分配的瓦片的多个OFDM符号数学来处理OFDM符号。

公开(公告)号：US20060291389A1

公开(公告)日：2006-12-28

申请号：US11512881

申请日：2006-08-29

申请人： Rashid Attar ,  Naga Bhushan

发明人： Rashid Attar ,  Naga Bhushan

IPC分类号： H04L12/26 ,  H04L12/56

CPC分类号： H04W74/0891 ,  H04W52/146 ,  H04W52/16 ,  H04W52/26 ,  H04W52/48

摘要： Methods and apparatus for a data transmission in a communication system are disclosed. Each of a subset of plural access terminals desiring to transmit user data in an interval transmits a request to transmit in the interval to an access network. The access network makes a decision to schedule at least one of the subset of the plural access terminals to transmit in the interval in accordance with the request. At least one access point of the access network transmits the decision to the plural access terminals.

摘要翻译： 公开了一种在通信系统中进行数据传输的方法和装置。 期望在间隔中发送用户数据的多个接入终端的子集中的每一个将间隔中的发送请求发送到接入网络。 所述接入网络作出决定，按照所述请求，在所述间隔内调度所述多个接入终端的所述子集中的至少一个进行发送。 接入网的至少一个接入点将决定发送到多个接入终端。

公开(公告)号：US20060109810A1

公开(公告)日：2006-05-25

申请号：US10997271

申请日：2004-11-24

申请人： Jean Au ,  Rashid Attar ,  Naga Bhushan

发明人： Jean Au ,  Rashid Attar ,  Naga Bhushan

IPC分类号： H04Q7/00

CPC分类号： H04L1/1819

摘要： A communication system (100) transmits data packets from a sender (120A) to a receiver (130A) using hybrid automatic repeat request processes. The sender redundantly encodes each packet, divides the packet into subpackets, and sends the subpackets to the receiver in a time-interlaced manner. When the receiver returns a positive acknowledgement of a subpacket using an acknowledgement channel, the sender terminates transmission of the subpackets. The sender interprets the signals on the acknowledgement channel using a metric resulting from correlation of the signals with positive and negative acknowledgement symbols. The sender interprets low correlation of the acknowledgement channel signal with both positive and negative acknowledgement symbols as a preamble miss, and terminates transmission of the subpackets. After termination, the packet may be rescheduled for transmission. Early termination of packet transmission after a preamble miss improves bandwidth utilization and decreases latency of the packet with the missed preamble.

摘要翻译： 通信系统（100）使用混合自动重复请求过程将数据分组从发送器（120A）发送到接收机（130A）。 发送方对每个数据包进行冗余编码，将数据包划分为子数据包，并以时间间隔方式将子数据包发送给接收方。 当接收方使用确认信道返回子包的肯定确认时，发送方终止子数据包的传输。 发送者使用由信号与正和负确认符号的相关产生的度量来确认确认信道上的信号。 发送方解释确认信道信号与正和负确认符号的低相关性作为前导码缺失，并终止子分组的传输。 终止之后，可以重新安排分组以进行传输。 前导码丢失后的数据包传输的提前终止提高了带宽利用率并降低了丢失前导码的数据包的等待时间。

公开(公告)号：US07050405B2

公开(公告)日：2006-05-23

申请号：US10313594

申请日：2002-12-06

申请人： Rashid Ahmed Attar ,  Naga Bhushan

发明人： Rashid Ahmed Attar ,  Naga Bhushan

IPC分类号： H04B1/46

CPC分类号： H04W52/48 ,  H04W52/12 ,  H04W52/146 ,  H04W52/16 ,  H04W52/26

摘要： Novel data transmission method and apparatus in a communication system require novel method and apparatus for power control and rate of data determination, which are disclosed.

摘要翻译： 通信系统中的新型数据传输方法和装置需要用于功率控制和数据确定速率的新颖的方法和装置，这被公开。

公开(公告)号：US09801188B2

公开(公告)日：2017-10-24

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 ,  H04W72/08 ,  H04W52/24 ,  H04W72/04 ,  H04W84/04 ,  H04W92/20

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.

公开(公告)号：US09264183B2

公开(公告)日：2016-02-16

申请号：US12446709

申请日：2007-10-24

申请人： Alexei Gorokhov ,  Aamod Khandekar ,  Naga Bhushan ,  Petru Christian Budianu ,  Ravi Palanki ,  Siddhartha Mallik

发明人： Alexei Gorokhov ,  Aamod Khandekar ,  Naga Bhushan ,  Petru Christian Budianu ,  Ravi Palanki ,  Siddhartha Mallik

IPC分类号： H04W4/00 ,  H04L1/16 ,  H04L1/18 ,  H04W76/02

CPC分类号： H04L1/1671 ,  H04L1/1858 ,  H04W76/10

摘要： Systems and methodologies are described that facilitate establishing a forward link acknowledgement channel and transmitting acknowledgment signals thereupon. In particular, the signals can be spread within contiguous channel clusters in a tile where the signals in the cluster are mutually orthogonal to one another. Additionally, the signals can be multiplexed over a plurality of frequency regions. In this regard, the acknowledgment signals are diverse with respect to frequency and interference; moreover, the signals can be received and decoded even where one of the channels experiences high interference. Furthermore, the acknowledgement signals can also communicate a channel deassignment value, which allows devices to utilize persistent channels in communicating data to one another.

摘要翻译： 描述了有助于建立前向链路确认信道并在其上发送确认信号的系统和方法。 特别地，信号可以在其中簇中的信号彼此相互正交的瓦片中的相邻信道簇内扩展。 另外，可以在多个频率区域上复用信号。 在这方面，确认信号在频率和干扰方面是不同的; 此外，即使在一个信道经受高干扰的情况下也可以接收和解码信号。 此外，确认信号还可以传送信道去分配值，这允许设备利用持久信道将数据彼此通信。

公开(公告)号：US09215669B2

公开(公告)日：2015-12-15

申请号：US12260826

申请日：2008-10-29

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

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

IPC分类号： H04W52/24 ,  H04W72/00 ,  H04B17/318 ,  H04L5/00 ,  H04W72/12 ,  H04W92/20 ,  H04L1/18

CPC分类号： H04W52/244 ,  H04B17/318 ,  H04L1/1854 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0053 ,  H04L5/006 ,  H04L5/0091 ,  H04W72/00 ,  H04W72/12 ,  H04W92/20

摘要： Providing for base station (BS) acquisition in semi-planned or unplanned wireless access networks is described herein. By way of example, a signal preamble can be dynamically allocated to wireless signal resources, such that the preamble is scheduled to different resource(s) across different cycles of the signal. Dynamic allocation can be pseudo-random, based on collision feedback, or determined by a suitable algorithm to mitigate collisions from a dominant interferer. In addition, dynamic scheduling can be particular to a type of BS to significantly reduce collisions from BSs of disparate types. In at least one aspect, a preamble resource can be sub-divided into multiple frequency sub-carrier tiles. Control channel information can be transmitted on each tile of a group of such tiles, further mitigating effects of a dominant interferer on a subset of the tile group.

摘要翻译： 本文描述了在半计划或非计划无线接入网络中提供基站（BS）采集。 作为示例，可以将信号前同步码动态地分配给无线信号资源，使得前导码被调度到跨越信号的不同周期的不同资源。 动态分配可以是伪随机的，基于碰撞反馈，或者由适当的算法确定，以减轻来自主要干扰源的冲突。 此外，动态调度对于一种类型的BS可以是特别的，以显着减少来自不同类型的BS的冲突。 在至少一个方面，前导码资源可以被细分为多个频率子载波瓦片。 可以在一组这样的瓦片的每个瓦片上发送控制信道信息，进一步减轻显着干扰源对瓦片组的子集的影响。