公开(公告)号：US07856250B2

公开(公告)日：2010-12-21

申请号：US11391108

申请日：2006-03-28

Applicant: Joseph Cleveland ,  Nivi Thadasina ,  John C. Jubin

Inventor： Joseph Cleveland ,  Nivi Thadasina ,  John C. Jubin

IPC: H04B1/38

CPC classification number: H04W52/243

Abstract: A small office/home office base transceiver station (SOHO BTS) server capable of managing interference by correlating pilot strength measurements sent by mobile devices and directing the attenuation settings for each transmit path. An array of antennas coupled to an array of transmit paths are selectively activated one at a time. When a transmit path is activated, the SOHO BTS server sets the associated variable attenuator to its maximum level. The SOHO BTS server detects whether a radio environment report or and a pilot strength measurement message (PSMM) containing information about a mobile station's pilot strength is present. When the pilot strength is greater than a predetermined value, the SOHO BTS server increases the setting on the attenuator. Otherwise, the SOHO BTS server decreases the attenuator setting until such pilot strength information is available or if the lowest attenuator setting has been set. The other transmit paths are also tested accordingly.

Abstract translation: 能够通过将由移动设备发送的导频强度测量相关并且指导每个发射路径的衰减设置来管理干扰的小型办公室/家庭办公室基站收发台（SOHO BTS）服务器。 耦合到发射路径阵列的天线阵列被一次一个地选择性地激活。 当发送路径被激活时，SOHO BTS服务器将相关联的可变衰减器设置为其最大电平。 SOHO BTS服务器检测是否存在包含关于移动台的导频强度的信息的无线电环境报告或导频强度测量消息（PSMM）。 当导频强度大于预定值时，SOHO BTS服务器增加衰减器上的设置。 否则，SOHO BTS服务器减少衰减器设置，直到这种导频强度信息可用或者如果最低衰减器设置已经被设置。 其他发送路径也进行了相应的测试。

公开(公告)号：US20080026763A1

公开(公告)日：2008-01-31

申请号：US11492737

申请日：2006-07-25

Applicant: Cornelius van Rensburg ,  Joseph Cleveland ,  Nivi Thadasina

Inventor： Cornelius van Rensburg ,  Joseph Cleveland ,  Nivi Thadasina

IPC: H04Q7/20

CPC classification number: H04W16/28 ,  H04W16/16 ,  H04W16/32 ,  Y02D70/142 ,  Y02D70/146

Abstract: Beamforming techniques to limit radiated power where there is the potential for interference with macro-cellular coverage or with adjacent mobile stations. Smart antenna beamforming techniques (including the use of angle of arrival information) are combined with access probe information to determine the direction for radiated power and the level of the needed transmitted power as well for the small office or home (SOHO) environment. The placement of RF power in the SOHO specific to where it is needed, minimizes radiating power in directions where it will cause interference with macrocell coverage. In addition, the beamforming techniques provide a base transceiver station with an economical method to quickly solve coverage issues internal to a SOHO, without introducing interference external to this coverage environment. In addition, there specific placement of the RF power where it is needed provides an increase in spectral efficiency of a deployed network.

Abstract translation: 波束形成技术来限制辐射功率，其中存在对宏蜂窝覆盖的干扰或与相邻移动站的干扰。 将智能天线波束形成技术（包括使用到达角信息）与接入探测信息相结合，以确定辐射功率的方向和所需发射功率的水平以及小型办公室或家庭（SOHO）环境。 在SOHO中将RF功率放置在特定于需要的地方，可以最大程度地降低发生干扰宏小区覆盖的方向上的辐射功率。 另外，波束成形技术为基站收发机提供了一种经济的方法来快速解决SOHO内部的覆盖问题，而不会引起该覆盖环境外部的干扰。 此外，在需要的地方，RF功率的具体布置提供了部署网络的频谱效率的提高。

公开(公告)号：US20070066226A1

公开(公告)日：2007-03-22

申请号：US11232346

申请日：2005-09-21

Applicant: Joseph Cleveland ,  Seong Kim ,  Lup Loh

Inventor： Joseph Cleveland ,  Seong Kim ,  Lup Loh

IPC: H04B1/00 ,  H04B15/00

CPC classification number: H04B1/00 ,  H04B7/002 ,  H04B7/10 ,  H04W88/06

Abstract: An apparatus and method for interference cancellation in wireless mobile stations operating concurrently in two or more wireless modes.

Abstract translation: 一种用于在两种或多种无线模式中同时操作的无线移动台中的干扰消除的装置和方法。

公开(公告)号：US07139593B2

公开(公告)日：2006-11-21

申请号：US10023199

申请日：2001-12-14

Applicant: Adnan Kavak ,  Joseph Cleveland

Inventor： Adnan Kavak ,  Joseph Cleveland

IPC: H04M1/00

CPC classification number: H04B7/0617 ,  H04B7/086

Abstract: A system and method is disclosed for improving downlink performance of an adaptive antenna array in a vehicular environment. The system comprises a mobile station that has a first mobile antenna and a second mobile antenna. A spatial signature estimator associated with a base transceiver station obtains spatial signatures from signals from the first mobile antenna and from the second mobile antenna within an uplink interval. Correlation circuitry uses the spatial signatures to identify a least changing spatial signature to obtain an optimal downlink beamforming weight vector to be used in the transmission of a signal to the mobile station in the next downlink interval.

公开(公告)号：US20060209671A1

公开(公告)日：2006-09-21

申请号：US11344298

申请日：2006-01-31

Applicant: Farooq Khan ,  Joseph Cleveland

Inventor： Farooq Khan ,  Joseph Cleveland

IPC: H04B17/00 ,  H04J11/00

CPC classification number: H04B7/2606 ,  H04B7/15542 ,  H04L5/0007 ,  H04L5/0035 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/006

Abstract: The present disclosure relates generally to a system and method for use in a communications network. In one example, the method includes dividing a total available frequency band of a first node into a multiple subcarriers using orthogonal frequency division multiplexing (OFDM). A first portion of subcarriers is allocated to a first link coupling the first node with a second node and a second portion of the subcarriers is allocated to a second link coupling the first node to a third node.

Abstract translation: 本公开一般涉及在通信网络中使用的系统和方法。 在一个示例中，该方法包括使用正交频分复用（OFDM）将第一节点的总可用频带划分为多个子载波。 子载波的第一部分被分配给将第一节点与第二节点耦合的第一链路，并且子载波的第二部分被分配给将第一节点耦合到第三节点的第二链路。

公开(公告)号：US07095809B2

公开(公告)日：2006-08-22

申请号：US10037454

申请日：2001-12-31

Applicant: Joseph Cleveland ,  Adnan Kavak

Inventor： Joseph Cleveland ,  Adnan Kavak

IPC: H03D1/00

CPC classification number: H04B1/707 ,  H04B1/7115 ,  H04J13/16

Abstract: A demodulator for demodulating S possible orthogonal modulation codes received serially as binary data, wherein each of the S possible orthogonal modulation codes comprises M binary bits representing an N-bit data symbol and wherein M=2N. The demodulator comprises Logic 00, Logic 01, Logic 10, and Logic 11 input detectors, each of which compares M/2 sequential pairs of the M binary bits of the orthogonal modulation codes to a respective one of a Logic 00 value, a Logic 01 value, a Logic 10 value, or a Logic 11 value and outputs a [+1,+1] signal if a match occurs and outputs a [−1,−1] signal if a match does not occur. An input decision circuit detects a [+1,+1] signal output by one of the input detectors after a comparison of a jth sequential pair of the M/2 sequential pairs of the M binary bits. In response to the detection, the input decision circuit adds the [+1,+1] signal to one or more of S accumulators if a jth one of the M/2 code mask bits in a corresponding one of a Logic 00 code mask, a Logic 01 code mask, a Logic 10 code mask, or a Logic 11 code mask is a Logic 1.

Abstract translation: 一种解调器，用于解调串行地作为二进制数据接收的S个可能的正交调制码，其中每个S个可能的正交调制码包括表示N位数据符号的M个二进制位，并且其中M = 2 N N。 解调器包括逻辑00，逻辑01，逻辑10和逻辑11输入检测器，每个输入检测器将正交调制码的M个二进制位的M / 2个连续对与逻辑00值，逻辑01 值，逻辑10值或逻辑11值，并且如果匹配发生则输出[+ 1，+ 1]信号，并且如果不发生匹配则输出[-1，-1]信号。 在比较M个二进制位的M / 2个顺序对的第j个顺序对之后，输入判定电路检测输入检测器之一输出的[+ 1，+ 1]信号。 响应于检测，输入判定电路将[+ 1，+ 1]信号添加到S个累加器中的一个或多个，如果在逻辑00代码掩码中相应的一个中的第一个M / 2码屏蔽位， 逻辑01代码掩码，逻辑10代码掩码或逻辑11代码掩码是逻辑1。

公开(公告)号：US20060140296A1

公开(公告)日：2006-06-29

申请号：US11285780

申请日：2005-11-22

Applicant: Joseph Cleveland ,  Akshaya Trivedi

Inventor： Joseph Cleveland ,  Akshaya Trivedi

IPC: H04K1/10 ,  H04L25/03

CPC classification number: H04L27/2618

Abstract: An apparatus is provided for reducing the peak-to-average power ratio (PAPR) of a multicarrier transmission system. The apparatus comprises a detector for receiving a plurality of symbols to be transmitted and determining a peak amplitude of the plurality of symbols and a controller for determining if the peak amplitude associated with the plurality of symbols exceeds a predetermined threshold. If the peak amplitude exceeds the predetermined threshold, the apparatus generates at least one correction carrier signal. The at least one correction carrier signal is combined with a plurality of modulated carrier signals associated with the plurality of symbols to thereby reduce a peak-to-average power ratio associated with the plurality of modulated carrier signals.

Abstract translation: 提供一种用于降低多载波传输系统的峰均功率比（PAPR）的装置。 该装置包括用于接收要发送的多个符号并确定多个符号的峰值幅度的检测器，以及用于确定与多个符号相关联的峰值幅度是否超过预定阈值的控制器。 如果峰值振幅超过预定阈值，则装置产生至少一个校正载波信号。 所述至少一个校正载波信号与与所述多个符号相关联的多个调制载波信号组合，从而减少与所述多个调制载波信号相关联的峰均功率比。

公开(公告)号：US20060046647A1

公开(公告)日：2006-03-02

申请号：US10934912

申请日：2004-09-02

Applicant: Deepak Parikh ,  Joseph Cleveland ,  Purva Rajkotia

Inventor： Deepak Parikh ,  Joseph Cleveland ,  Purva Rajkotia

IPC: H04B3/36 ,  H04B7/14 ,  H04L12/56 ,  H04L12/28 ,  H04B7/15

CPC classification number: H04W88/04 ,  H04B7/155 ,  H04W88/02

Abstract: A proxy mobile station for retransmitting reverse channel signals from a mobile station to a base station of a wireless network. The proxy mobile station comprises: 1) a controller for receiving reverse channel data to be transmitted to the base station and transmitting the reverse channel data using an assigned mobile station identifier associated with the mobile station; and 2) a radio frequency transceiver for up-converting the encoded reverse channel data for transmission to the base station. The assigned mobile station is modifiable and may be modified by an external control device.

Abstract translation: 一种用于从移动台向无线网络的基站重传反向信道信号的代理移动站。 代理移动台包括：1）控制器，用于接收要发送到基站的反向信道数据，并使用与移动台相关联的分配的移动台标识符发送反向信道数据; 以及2）射频收发器，用于对编码的反向信道数据进行上变频以传输到基站。 分配的移动台是可修改的，并且可以由外部控制设备修改。

公开(公告)号：US20060040611A1

公开(公告)日：2006-02-23

申请号：US11145619

申请日：2005-06-06

Applicant: Yinong Ding ,  Cornelius Rensburg ,  Joseph Cleveland

Inventor： Yinong Ding ,  Cornelius Rensburg ,  Joseph Cleveland

IPC: H04B7/15

CPC classification number: H04B7/15585

Abstract: A system and method for channel estimation and echo cancellation in wireless system repeaters. A repeater with improved echo cancellation comprises an input radio control element having a receiving antenna and an output radio control element having a transmitting antenna; a power amplifier connected between the input radio control element and the output radio control element; and a signal processing unit connected between the input radio control element and the output radio control element. The signal processing unit is configured to estimate the communication channel from the transmitting antenna to the receiving antenna to produce a channel estimation. The signal processing unit is further configured to perform echo cancellation based on the channel estimation.

公开(公告)号：US20050265274A1

公开(公告)日：2005-12-01

申请号：US10841256

申请日：2004-05-07

Applicant: Joseph Cleveland

Inventor： Joseph Cleveland

IPC: H04B7/216 ,  H04B17/40 ,  H04J11/00 ,  H04L5/02 ,  H04L27/26

CPC classification number: H04L27/2647 ,  H04L5/0021 ,  H04L5/0048 ,  H04L25/022 ,  H04L25/0228 ,  H04L25/03299

Abstract: For use in a multi-carrier CDMA receiver, a noise reduction circuit for improving a signal-to-noise ratio of a multi-carrier signal corresponding to a predetermined sequence of chips. Each chip has a value of Logic 0 or Logic 1. The noise reduction circuit comprises a Fast Fourier Transform (FFT) circuit for receiving the multi-carrier signal and generating frequency-domain component signals. A sampling circuit generates a first sequence of samples of the frequency-domain component signals. A controller identifies samples in the first sample sequence corresponding to Logic 0 chips and identifies samples in the first sample sequence corresponding to Logic 1 chips. A randomizing circuit generates a second sample sequence by shifting positions within the first sample sequence of some of the identified samples corresponding to Logic 0 chips, or by shifting positions within the first sample sequence of some of the identified samples corresponding to Logic 1 chips.

Abstract translation: 为了在多载波CDMA接收机中使用噪声降低电路，用于改善对应于预定的码片序列的多载波信号的信噪比。 每个芯片具有逻辑0或逻辑1的值。噪声降低电路包括用于接收多载波信号并产生频域分量信号的快速傅里叶变换（FFT）电路。 采样电路产生频域分量信号的第一采样序列。 控制器识别与逻辑0码片相对应的第一采样序列中的样本，并识别与逻辑1码片对应的第一采样序列中的样本。 随机化电路通过移位对应于逻辑0码片的一些所识别的样本的第一采样序列内的位置，或通过移位与逻辑1码片相对应的一些识别样本的第一采样序列内的位置来产生第二采样序列。