公开(公告)号：US09203466B2

公开(公告)日：2015-12-01

申请号：US12446679

申请日：2007-10-24

申请人： Alexei Gorokhov ,  Aamod Khandekar ,  Michael Mao Wang

发明人： Alexei Gorokhov ,  Aamod Khandekar ,  Michael Mao Wang

IPC分类号： H04W4/00 ,  H04B1/7075

CPC分类号： H04B1/7075 ,  H04B2201/70701

摘要： System(s) and method(s) are provided to facilitate generating and processing acquisition pilots in wireless communications. Acquisition pilots that convey timing and frequency synchronization information, wireless system acquisition and system determination information are modulated with pseudorandom sequences. The R bits of information carried by the acquisition pilot that conveys system determination information are augmented with T bits that convey a counter index associated with the system timing of superframes transmitted from an access point. The processing overhead resulting from the addition of the T bits is offset by the advantages afforded to a wireless communication. Salient advantages include: (i) processing gain at a receiver for communication in a specific sector during asynchronous operation, (ii) packet boundary determination through the counter field values, and (iii) initialization of various pseudorandom registers employed for communication.

摘要翻译： 提供系统和方法以便于在无线通信中生成和处理采集导频。 采用伪随机序列调制传送定时和频率同步信息的采集导频，无线系统采集和系统确定信息。 传送系统确定信息的采集导频携带的R位的信息用传递与从接入点发送的超帧的系统定时相关联的计数器索引的T比特来增大。 由于添加T位而产生的处理开销被提供给无线通信的优点所抵消。 显着的优点包括：（i）在异步操作期间处理在特定扇区中的通信处理增益，（ii）通过计数器字段值确定分组边界，以及（iii）用于通信的各种伪随机寄存器的初始化。

公开(公告)号：US08837609B2

公开(公告)日：2014-09-16

申请号：US12446701

申请日：2007-10-23

申请人： Ravi Palanki ,  Michael Mao Wang

发明人： Ravi Palanki ,  Michael Mao Wang

IPC分类号： H04L27/28 ,  H04L5/02 ,  H04L27/26 ,  H04B7/04

CPC分类号： H04L27/261 ,  H04B7/04 ,  H04L5/023 ,  H04L27/2602

摘要： Systems and methodologies are described that facilitate guard bandwidth independent mapping and de-mapping of bandwidth in a wireless communication system. Broadcast signals can be created as if all bandwidth were available, and guard bandwidth can be initialized over the utilized bandwidth such to puncture the data existing in the guard bandwidth. Upon decoding the broadcast signal, size of the guard bandwidth can be predetermined or estimated allowing a center portion of the signal to be decoded without decoding the guard bandwidth. In this regard, the decoder of the signal need not find exact positions of the guard bandwidth as transforming and decoding the center portion can provide a substantial portion of the signal to interpret the signal.

摘要翻译： 描述了在无线通信系统中有助于保护带宽独立映射和带宽去映射的系统和方法。 可以创建广播信号，就好像所有带宽都可用，并且保护带宽可以在利用的带宽上进行初始化，以刺穿保护带宽中存在的数据。 在对广播信号进行解码时，可以预先确定或估计保护带宽的大小，从而允许对信号的中心部分进行解码而不对保护带宽进行解码。 在这方面，信号的解码器不需要找到保护带宽的精确位置，因为转换和解码中心部分可以提供信号的大部分来解释信号。

公开(公告)号：US08792865B2

公开(公告)日：2014-07-29

申请号：US11612453

申请日：2006-12-18

申请人： Gordon Kent Walker ,  Bruce Collins ,  Christopher R. Wingert ,  Jai N. Subrahmanyam ,  Michael Mao Wang

发明人： Gordon Kent Walker ,  Bruce Collins ,  Christopher R. Wingert ,  Jai N. Subrahmanyam ,  Michael Mao Wang

IPC分类号： H04M3/42 ,  H04W24/00 ,  H04L29/06 ,  H04L12/18 ,  H04W28/04

CPC分类号： H04L1/08 ,  G06F11/1004 ,  H04L12/1868 ,  H04L12/189 ,  H04L29/06027 ,  H04L65/602 ,  H04L65/605 ,  H04W28/04

摘要： Systems and methods are provided for mitigating interference in a wireless network to facilitate network performance. In an aspect, a method for transmitting wireless data packets is provided. The method includes receiving data packets from a wireless distribution network. The data packets are analyzed to determine if a subset of the data packets are to be suppressed in view of transmitter signal conditions and substituting null packets for the subset of data packets if the subset of data packets are determined to be suppressed.

摘要翻译： 提供了系统和方法来减轻无线网络中的干扰，以促进网络性能。 在一方面，提供了一种用于发送无线数据分组的方法。 该方法包括从无线分发网络接收数据分组。 分析数据分组以确定如果数据分组的子集被确定为被抑制，则鉴于发射机信号条件，是否要抑制数据分组的子集，并且将零分组替换为数据分组的子集。

公开(公告)号：US08780767B2

公开(公告)日：2014-07-15

申请号：US12951294

申请日：2010-11-22

申请人： Michael Mao Wang

发明人： Michael Mao Wang

IPC分类号： H04J3/00

CPC分类号： H04B7/2615 ,  H04W48/12

摘要： Methods and apparatus for including mode information in a wireless transmission frame, which is useful for system acquisition. In particular, a first information bit is provided in a preamble of a transmission frame, where the bit is configured to indicate that a wireless communication system is operating according to either a time division duplex (TDD) mode or a frequency division duplex (FDD) mode. The addition of a single bit minimally affects the resources of the preamble. Additionally, another bit resource already present in the preamble for normally communicating whether FDD transmissions are full duplex or half-duplex transmissions, may be further allocated to indicate partitioning information concerning TDD mode transmissions when the first bit indicates TDD mode, thus affording additional information communicated in the frame without increasing preamble resources.

摘要翻译： 在无线传输帧中包括模式信息的方法和装置，其对于系统采集是有用的。 特别地，在发送帧的前导码中提供第一信息比特，其中该比特被配置为指示无线通信系统根据时分双工（TDD）模式或频分双工（FDD）模式进行操作， 模式。 单个位的添加最小限度地影响前导码的资源。 此外，可以进一步分配在前导码中已经存在的用于正常传送FDD传输是全双工或半双工传输的另一比特资源，以指示当第一比特指示TDD模式时关于TDD模式传输的分区信息，从而提供传播的附加信息 在帧中不增加前导资源。

公开(公告)号：US08509859B2

公开(公告)日：2013-08-13

申请号：US11372876

申请日：2006-03-10

申请人： Tadeusz Jarosinski ,  Chinnappa K. Ganapathy ,  Michael Mao Wang

发明人： Tadeusz Jarosinski ,  Chinnappa K. Ganapathy ,  Michael Mao Wang

IPC分类号： H04B1/16 ,  H04B1/38 ,  H04M1/00

CPC分类号： H04W52/0225 ,  H04B1/1615 ,  H04W52/0293 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/164 ,  Y02D70/40

摘要： Disclosed are apparatus and methods for control of sleep modes in a transceiver or receiver. In particular, a transceiver is disclosed including a processor configured to determine timing information concerning sleep periods for at least a portion of components within the transceiver. The transceiver also includes a sleep control logic coupled to the processor to receive information concerning sleep periods from the processor and configured to effect shutting down of the at least a portion of the components of the transceiver during power reduction periods independent of the processor.

摘要翻译： 公开了用于在收发器或接收器中控制睡眠模式的装置和方法。 具体地，公开了一种收发器，其包括被配置为确定关于收发器内的部件的至少一部分的睡眠周期的定时信息的处理器。 收发器还包括耦合到处理器的睡眠控制逻辑，以从处理器接收关于睡眠周期的信息，并且被配置为在与处理器无关的功率衰减周期期间实现收发器的至少一部分组件的关闭。

公开(公告)号：US08223899B2

公开(公告)日：2012-07-17

申请号：US11690590

申请日：2007-03-23

申请人： Michael Mao Wang

发明人： Michael Mao Wang

IPC分类号： H04L27/08

CPC分类号： H04L27/2647 ,  H03G3/005 ,  H03G3/3078

摘要： Methods and apparatus for initial acquisition gain control in a communication system a method for use in a wireless communication system are disclosed. A disclosed methodology includes measuring the power of a signal received by a transceiver a number of times over a prescribed time period, the signal including a number of symbols. A gain of the transceiver is unidirectionally adjusted when a currently measured power is greater than a previously measured power during the prescribed time period until a maximal power level is measured. By adjusting the gain to accommodate a maximal power value, which is the same as the power level of an acquisition pilot symbol, overshoot and distortion by the transceiver are avoided during initial timing and frequency acquisition. Corresponding apparatus are also disclosed.

摘要翻译： 公开了一种用于无线通信系统中的通信系统中的初始采集增益控制的方法和装置。 公开的方法包括在规定的时间周期内测量由收发器接收的信号的功率，该信号包括多个符号。 当在当前测量的功率大于在规定的时间周期内直到测量最大功率电平之前的先前测量的功率时，单向调整收发器的增益。 通过调整增益以适应与采集导频符号的功率电平相同的最大功率值，在初始定时和频率采集期间避免了收发器的过冲和失真。 还公开了相应的装置。

公开(公告)号：US08009551B2

公开(公告)日：2011-08-30

申请号：US11021051

申请日：2004-12-22

申请人： Michael Mao Wang

发明人： Michael Mao Wang

IPC分类号： H04J11/00

CPC分类号： H04L5/0048 ,  H04L5/0023 ,  H04L5/0058

摘要： The subject invention selects a starting sub-carrier frequency group for a pilot staggering sequence to facilitate in mitigating the possibility of pilot signal collisions. In one embodiment, a randomized starting sub-carrier frequency group of the pilot is utilized in a first orthogonal frequency division multiplexing (OFDM) symbol of a frame. In another embodiment, a starting pilot sub-carrier frequency group number is determined by utilizing a random number generator such as, for example, a Pseudo-Noise (PN) sequence generator, seeded by a network identification (ID) number. In this manner, the starting sub-carrier frequency group is specific to that particular network. The subject invention also provides a more scalable system through the trading of system bandwidth for coverage.

摘要翻译： 本发明选择用于导频交错序列的起始子载波频率组以便于减轻导频信号冲突的可能性。 在一个实施例中，在帧的第一正交频分复用（OFDM）符号中使用导频的随机起始子载波频率组。 在另一个实施例中，通过利用随机数生成器（例如伪噪声（PN）序列发生器）来确定起始导频副载波频率组号，该编码发生器由网络标识（ID）号码接收。 以这种方式，起始子载波频率组是特定于该特定网络的。 本发明还通过用于覆盖的系统带宽的交易来提供更可扩展的系统。

公开(公告)号：US07948907B2

公开(公告)日：2011-05-24

申请号：US11343380

申请日：2006-01-30

申请人： Michael Mao Wang ,  Ashok Mantravadi ,  Murali Ramaswamy Chari

发明人： Michael Mao Wang ,  Ashok Mantravadi ,  Murali Ramaswamy Chari

IPC分类号： H04L12/26 ,  H04W4/00

CPC分类号： H04B1/3805 ,  H04H20/26 ,  H04H40/18

摘要： The disclosure is directed to a mobile communication device that may receive wireless broadcast signals from a number of different base stations or transmitters. As the location of the device moves relative to the transmitters, one transmitter will likely be identified as the transmitter broadcast the strongest, or highest quality, signal. When that determination is made, the user of the mobile device is presented the opportunity to switch to receiving that transmitters signal. Based on the user's reply, the device may remain with the current transmitter, even though it does not have the strongest signal, or the device may be configured to acquire and start receiving the new transmitter's signal. The measuring of the quality of a transmitter's signal may be based on a composite score that combines a number of individual measurements made over a predetermined period of time.

摘要翻译： 本公开针对可从多个不同基站或发射机接收无线广播信号的移动通信设备。 随着设备的位置相对于发射机移动，一个发射机可能被识别为发射机广播最强或最高质量的信号。 当进行该确定时，向移动设备的用户呈现切换到接收该发射机信号的机会。 基于用户的答复，即使设备没有最强的信号，设备仍然可以保持当前的发射机，或者设备可能被配置为获取和开始接收新的发射机的信号。 发射机信号的质量的测量可以基于组合在预定时间段内进行的多个单独测量的综合得分。

公开(公告)号：US20110080924A1

公开(公告)日：2011-04-07

申请号：US12896780

申请日：2010-10-01

申请人： Michael Mao Wang ,  Bojan Vrcelj ,  Krishna Kiran Mukkavilli ,  Raghuraman Krishnamoorthi ,  Ashok Mantravadi

发明人： Michael Mao Wang ,  Bojan Vrcelj ,  Krishna Kiran Mukkavilli ,  Raghuraman Krishnamoorthi ,  Ashok Mantravadi

IPC分类号： H04J3/00

CPC分类号： H04L27/2613 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/023

摘要： Systems and methods are provided for the transmission of waveforms to aid channel estimation, timing synchronization, and AGC bootstrapping in a wireless network. The method includes inserting at least one TDM pilot symbol located at a transition between wide area and local area waveforms to facilitate decoding of the transmission block.

摘要翻译： 提供了用于传输波形以辅助无线网络中的信道估计，定时同步和AGC自举的系统和方法。 该方法包括插入位于广域和局域波形之间的转变处的至少一个TDM导频符号，以便于传输块的解码。

公开(公告)号：US07860036B2

公开(公告)日：2010-12-28

申请号：US12178201

申请日：2008-07-23

申请人： Michael Mao Wang

发明人： Michael Mao Wang

IPC分类号： H04J3/00

CPC分类号： H04B7/2615 ,  H04W48/12

摘要： Methods and apparatus for including mode information in a wireless transmission frame, which is useful for system acquisition. In particular, a first information bit is provided in a preamble of a transmission frame, where the bit is configured to indicate that a wireless communication system is operating according to either a time division duplex (TDD) mode or a frequency division duplex (FDD) mode. The addition of a single bit minimally affects the resources of the preamble. Additionally, another bit resource already present in the preamble for normally communicating whether FDD transmissions are full duplex or half-duplex transmissions, may be further allocated to indicate partitioning information concerning TDD mode transmissions when the first bit indicates TDD mode, thus affording additional information communicated in the frame without increasing preamble resources.

摘要翻译： 在无线传输帧中包括模式信息的方法和装置，其对于系统采集是有用的。 特别地，在发送帧的前导码中提供第一信息比特，其中该比特被配置为指示无线通信系统根据时分双工（TDD）模式或频分双工（FDD）模式进行操作， 模式。 单个位的添加最小限度地影响前导码的资源。 此外，可以进一步分配在前导码中已经存在的用于正常传送FDD传输是全双工或半双工传输的另一比特资源，以指示当第一比特指示TDD模式时关于TDD模式传输的分区信息，从而提供传播的附加信息 在帧中不增加前导资源。