公开(公告)号：US08089938B2

公开(公告)日：2012-01-03

申请号：US11318467

申请日：2005-12-28

申请人： Peter Bosch ,  Emad N. Farag ,  Sape J. Mullender ,  Alexander Nathues ,  Louis Gwyn Samuel

发明人： Peter Bosch ,  Emad N. Farag ,  Sape J. Mullender ,  Alexander Nathues ,  Louis Gwyn Samuel

IPC分类号： H04W4/00 ,  H04B15/00

CPC分类号： H04B7/2681 ,  H04W36/08 ,  H04W56/009

摘要： A method of synchronizing with an uplink channel and a method of determining a propagation delay in a wireless communications system are provided. In the example method of synchronizing, a propagation delay between a target base station and a mobile station is calculated. Then, the calculated propagation delay is sent to the target base station. In the example method of determining a propagation delay, a first signal is received indicating a first measured chip offset between a downlink channel of a serving base station and a pilot signal of the target base station. A second signal indicating a second measured chip offset between an uplink channel of the mobile station and a pilot signal of the target base station is then received. A propagation delay between the target base station and the mobile station is calculated based at least in part on the first and second measured chip offsets.

摘要翻译： 提供了一种与上行链路信道同步的方法和确定无线通信系统中的传播延迟的方法。 在示例的同步方法中，计算目标基站与移动台之间的传播延迟。 然后，将计算出的传播延迟发送到目标基站。 在确定传播延迟的示例性方法中，接收指示服务基站的下行链路信道与目标基站的导频信号之间的第一测量的码片偏移的第一信号。 然后接收指示移动站的上行链路信道与目标基站的导频信号之间的第二测量的码片偏移的第二信号。 至少部分地基于第一和第二测量的码片偏移来计算目标基站和移动台之间的传播延迟。

公开(公告)号：US20110310877A1

公开(公告)日：2011-12-22

申请号：US12819909

申请日：2010-06-21

申请人： Kam H. Wu ,  Emad N. Farag ,  Shin Horng Wong

发明人： Kam H. Wu ,  Emad N. Farag ,  Shin Horng Wong

IPC分类号： H04J1/00 ,  H04B7/02

CPC分类号： H04B7/12 ,  H04L1/0002 ,  H04L1/0026 ,  H04L1/04 ,  H04L1/1893 ,  H04L5/06

摘要： Embodiments are described to address coverage difference problems in communication systems (300) that operate in multiple frequency bands. Embodiments are described that utilize both Carrier Multiplexing and Carrier Diversity for a plurality of frequency carriers that exhibit a difference in coverage due to differences in path loss. Carrier Diversity is selected for carriers for which one or more of such selected carriers have a smaller coverage in order to increase the signal-to-noise ratio of the diversity combined carriers. This can effectively extend the coverage of diversity combined carriers to match those with larger coverage in Carrier Multiplexing mode.

摘要翻译： 描述实施例以解决在多个频带中操作的通信系统（300）中的覆盖差异问题。 描述了利用载波分集和载波分集对由于路径损耗的差异而表现出覆盖差异的多个频率载波的实施例。 选择载波分集用于其中一个或多个这样选择的载波具有较小覆盖的载波，以增加分集组合载波的信噪比。 这可以有效地扩展分集组合载波的覆盖范围，使其与载波复用模式下的覆盖范围更大。

公开(公告)号：US20110128873A1

公开(公告)日：2011-06-02

申请号：US12952386

申请日：2010-11-23

申请人： Emad N. Farag

发明人： Emad N. Farag

IPC分类号： H04W24/00

CPC分类号： H04W56/0045 ,  H04W92/10

摘要： To address the need for new techniques that are able to support communications in ultra large cells various embodiments are described. For example, one method involves determining that user equipment (UE) is located in a far zone of a transceiver node's coverage area and then determining a timing advance value for the UE such that a transmission from the UE will be received at the transceiver node one slot period after a transmission of a near zone UE assigned to the same HARQ process. This timing advance value is then indicated to the UE.

摘要翻译： 为了解决能够支持超大型电池中的通信的新技术的需要，描述了各种实施例。 例如，一种方法涉及确定用户设备（UE）位于收发器节点的覆盖区域的远区域中，然后确定UE的定时提前值，使得来自UE的传输将在收发器节点1处被接收 在发送分配给相同HARQ进程的近区域UE之后的时隙周期。 然后将该定时提前值指示给UE。

公开(公告)号：US07764743B2

公开(公告)日：2010-07-27

申请号：US11197306

申请日：2005-08-05

申请人： Emad N. Farag

发明人： Emad N. Farag

IPC分类号： H04L5/12

CPC分类号： H03M13/2957 ,  H03M13/6306 ,  H03M13/635 ,  H04L1/0066 ,  H04L1/0068 ,  H04L1/1819 ,  H04L2001/0098

摘要： A method of encoding data for transmission to one or more users selects a given number of bits of data from a transport block to be subject to hybrid ARQ functionality for channel coding. Only the selected bits are channel coded in a HARQ block for subsequent transmission using a given set of channelization codes to one or more users.

摘要翻译： 编码用于传输给一个或多个用户的数据的方法从传输块中选择给定数量的数据位以进行信道编码的混合ARQ功能。 只有所选择的比特在HARQ块中进行信道编码，以便使用给定的一组信道化码给一个或多个用户进行后续发送。

公开(公告)号：US07646801B2

公开(公告)日：2010-01-12

申请号：US11339570

申请日：2006-01-26

申请人： Emad N. Farag ,  Yousef M. Hawwar

发明人： Emad N. Farag ,  Yousef M. Hawwar

IPC分类号： H04B1/00

CPC分类号： H04L27/206 ,  H04J13/0044 ,  H04J13/10

摘要： According to one embodiment, a lower order modulator is provided using a number of higher order modulators. According to another embodiment, a signal having a lower order spreading factor is generated using circuitry for generating a number of signals with a higher order spreading factor.

摘要翻译： 根据一个实施例，使用多个高阶调制器提供低阶调制器。 根据另一个实施例，使用用于产生具有较高阶扩频因子的多个信号的电路来产生具有较低阶扩频因子的信号。

公开(公告)号：US20150327290A1

公开(公告)日：2015-11-12

申请号：US14270695

申请日：2014-05-06

申请人： Jerry Z. WANG ,  Venkata VANKAYALA ,  Ramdhan SINGH ,  Constant CONAN ,  Emad N. FARAG ,  Taofik SAIDI

发明人： Jerry Z. WANG ,  Venkata VANKAYALA ,  Ramdhan SINGH ,  Constant CONAN ,  Emad N. FARAG ,  Taofik SAIDI

IPC分类号： H04W72/12 ,  H04W16/02 ,  H04W56/00 ,  H04W88/08

CPC分类号： H04W56/00 ,  H04L5/001 ,  H04L5/0044 ,  H04L5/0053 ,  H04W56/001 ,  H04W72/12 ,  H04W72/1263 ,  H04W88/08

摘要： A transceiver station includes a first board and a second board. The first board includes an anchor cell L2 scheduler configured to schedule at least one of uplink and downlink transmissions for a multi-carrier user on only a first of the plurality of carriers. The second board includes a secondary cell L2 scheduler configured to schedule at least one of uplink and downlink transmissions for the multi-carrier user on only a second of the plurality of carriers, the second board being separate from, but interconnected with the first board.

摘要翻译： 收发台包括第一板和第二板。 第一板包括锚小区L2调度器，其被配置为仅在多个载波中的第一个载波上调度用于多载波用户的上行链路和下行链路传输中的至少一个。 第二板包括辅助小区L2调度器，其被配置为仅在多个载波中的第二个载波上调度用于多载波用户的上行链路和下行链路传输中的至少一个，第二板与第一板分离，但与第一板互连。

公开(公告)号：US07194020B1

公开(公告)日：2007-03-20

申请号：US09591560

申请日：2000-06-09

申请人： Emad N. Farag ,  Michael Flanagan

发明人： Emad N. Farag ,  Michael Flanagan

IPC分类号： H04B1/00

CPC分类号： H04W52/028 ,  Y02D70/00

摘要： A method for detecting packet data transmission following an inactive period of a transmitter. The method includes using a dynamic acquisition search window which grows from an initial width (determined by the size of the corresponding standard search window prior to entering the inactive period) up to a maximum width (for example, the width of a full cell) in correspondence with the length of time that the transmitter is in the inactive state. The method is particularly directed to a mobile transmitter having active and inactive periods. The method according to the present invention is also useful relative to streaming data, such as voice, including a plurality of multipath components.

摘要翻译： 一种用于在发射机的非活动时段之后检测分组数据传输的方法。 该方法包括使用动态采集搜索窗口，其从初始宽度（由进入非活动时段之前的对应标准搜索窗口的大小确定）直到最大宽度（例如，全小区的宽度）在 与发射机处于非活动状态的时间长度的对应关系。 该方法特别涉及具有活动和非活动时段的移动发射机。 根据本发明的方法对于包括多个多路径分量的诸如语音的流数据也是有用的。

公开(公告)号：US10123287B2

公开(公告)日：2018-11-06

申请号：US14270695

申请日：2014-05-06

申请人： Jerry Z. Wang ,  Venkata Vankayala ,  Ramdhan Singh ,  Constant Conan ,  Emad N. Farag ,  Taofik Saidi

发明人： Jerry Z. Wang ,  Venkata Vankayala ,  Ramdhan Singh ,  Constant Conan ,  Emad N. Farag ,  Taofik Saidi

IPC分类号： H04W72/12 ,  H04W56/00 ,  H04W88/08 ,  H04L5/00

摘要： A transceiver station includes a first board and a second board. The first board includes an anchor cell L2 scheduler configured to schedule at least one of uplink and downlink transmissions for a multi-carrier user on only a first of the plurality of carriers. The second board includes a secondary cell L2 scheduler configured to schedule at least one of uplink and downlink transmissions for the multi-carrier user on only a second of the plurality of carriers, the second board being separate from, but interconnected with the first board.

公开(公告)号：US08271848B2

公开(公告)日：2012-09-18

申请号：US11398535

申请日：2006-04-06

申请人： Robert David Bresalier ,  Francis Dominique ,  Emad N. Farag ,  Hongwei Kong

发明人： Robert David Bresalier ,  Francis Dominique ,  Emad N. Farag ,  Hongwei Kong

IPC分类号： H03M13/00

CPC分类号： H03M13/2957

摘要： In a multiple access environment, to improve decoding efficiency for small code blocks by a constituent decoder, multiple code blocks may be concatenated to form a single larger code block. Example embodiments of the present invention concatenate code blocks for turbo codes I and II. Example embodiments of the present invention may also concatenate code blocks for convolutional code. Example embodiments of the present invention also disclose a system to concatenate the code blocks.

摘要翻译： 在多址环境中，为了通过构成解码器提高小代码块的解码效率，可以将多个代码块级联以形成单个更大的代码块。 本发明的示例实施例用于turbo码I和II的级联码块。 本发明的示例性实施例也可以连接用于卷积码的代码块。 本发明的示例性实施例还公开了一种用于级联代码块的系统。

公开(公告)号：US07078981B2

公开(公告)日：2006-07-18

申请号：US10899184

申请日：2004-07-27

申请人： Emad N. Farag

发明人： Emad N. Farag

IPC分类号： H03C3/00 ,  H04L27/36

CPC分类号： H04L27/362 ,  H04L5/12 ,  H04L27/3488

摘要： In one embodiment, the 16-quadrature amplitude modulation QAM modulator includes a logic operation device performing a logic operation on first-fourth bits of received data to generate first and second logic outputs. A first quadrature phase shift keying QPSK modulator receives the first and second bits of received data and generates a first QPSK signal. A second QPSK modulator receives the first and second logic outputs and generates a second QPSK signal. A combiner combines the first and second QPSK signals to generate a 16-QAM signal.

摘要翻译： 在一个实施例中，16正交幅度调制QAM调制器包括对接收数据的第四位进行逻辑运算以产生第一和第二逻辑输出的逻辑运算装置。 第一正交相移键控QPSK调制器接收接收数据的第一和第二比特并产生第一QPSK信号。 第二QPSK调制器接收第一和第二逻辑输出并产生第二QPSK信号。 组合器组合第一和第二QPSK信号以产生16-QAM信号。