公开(公告)号：US07639597B2

公开(公告)日：2009-12-29

申请号：US10770202

申请日：2004-02-02

Applicant: Steve J Shattil

Inventor： Steve J Shattil

IPC: H04J11/00

CPC classification number: H04L27/2614 ,  H04B2201/70706

Abstract: Transmission waveforms are synthesized from orthogonal subcarriers using appropriate combinations of complex sub-carrier codes. This allows conventional single-carrier signaling (such as GSM and CDMA transmission protocols) to be generated and received using a multicarrier platform that is similar to OFDM. Carrier interferometry provides unprecedented bandwidth efficiency and enables substantial improvements in interference rejection, power efficiency, and system versatility.

Abstract translation: 使用复合子载波代码的适当组合从正交子载波合成传输波形。 这允许使用类似于OFDM的多载波平台来生成和接收常规的单载波信令（例如GSM和CDMA传输协议）。 载波干涉测量提供了前所未有的带宽效率，并能够大大提高干扰抑制，功率效率和系统通用性。

公开(公告)号：US07620098B2

公开(公告)日：2009-11-17

申请号：US10995096

申请日：2004-11-24

Applicant: Een Kee Hong ,  Jin Woong Cho ,  Sung Jin Kang ,  Dae Ki Hong ,  Yong Seong Kim ,  Min Chul Ju ,  Sung Pil Kim ,  Myoung Jin Kim

Inventor： Een Kee Hong ,  Jin Woong Cho ,  Sung Jin Kang ,  Dae Ki Hong ,  Yong Seong Kim ,  Min Chul Ju ,  Sung Pil Kim ,  Myoung Jin Kim

IPC: H04B1/69

CPC classification number: H04L27/2278 ,  H04B1/707 ,  H04B2201/70706 ,  H04J13/0048 ,  H04J13/0077

Abstract: Disclosed is a demodulation method for enhancing decoding performance of information bits in a constant-amplitude multi-code biorthogonal modulation communication system, which performs encoding to cause the level of a transmission symbol to be constant.

Abstract translation: 公开了一种在恒定幅度多码双正交调制通信系统中增强信息比特的解码性能的解调方法，该系统进行编码以使发送码元的电平恒定。

公开(公告)号：US20090245209A1

公开(公告)日：2009-10-01

申请号：US12463884

申请日：2009-05-11

Applicant: Joon-Young CHO ,  Ju-Ho LEE ,  Youn-Hyoung HEO ,  Yong-Jun KWAK ,  Young-Bum KIM

Inventor： Joon-Young CHO ,  Ju-Ho LEE ,  Youn-Hyoung HEO ,  Yong-Jun KWAK ,  Young-Bum KIM

IPC: H04B7/216

CPC classification number: H04B1/707 ,  H04B2201/70706 ,  H04J13/0044 ,  H04J13/20

Abstract: An apparatus and method in which an Enhanced Uplink Dedicated transport CHannel (EUDCH) is used in a Wideband Code Division Multiple Access (WCDMA) system is provided. In a User Equipment (UE), when physical channels for transmitting EUDCH data are transmitted in addition to existing physical channels, a Peak-to-Average Power Ratio (PAPR) of an uplink transport signal increases. The increase in PAPR depends upon Orthogonal Variable Spreading Factor (OVSF) codes allocated to the corresponding physical channels and In-phase/Quadrature-phase (I/Q) channels. Therefore, the apparatus and method allocate optimum OVSF codes and I/Q channels to EUDCH-related physical channels in order to minimize an increase in PAPR due to EUDCH.

Abstract translation: 提供了一种在宽带码分多址（WCDMA）系统中使用增强上行专用传输信道（EUDCH）的装置和方法。 在用户设备（UE）中，除了现有物理信道之外还发送用于发送EUDCH数据的物理信道，上行链路传输信号的峰均功率比（PAPR）增加。 PAPR的增加取决于分配给相应物理信道和同相/正交相（I / Q）信道的正交可变扩频因子（OVSF）码。 因此，该装置和方法为EUDCH相关物理信道分配最佳OVSF码和I / Q信道，以便最小化EUDCH引起的PAPR增加。

公开(公告)号：US07548528B2

公开(公告)日：2009-06-16

申请号：US11349269

申请日：2006-02-08

Applicant: Volker Breuer ,  Steffen Junghanns ,  Frank Lamprecht ,  Armin Splett ,  Thomas Ulrich ,  Gunter Wolff

Inventor： Volker Breuer ,  Steffen Junghanns ,  Frank Lamprecht ,  Armin Splett ,  Thomas Ulrich ,  Gunter Wolff

IPC: H04B7/216

CPC classification number: H04J13/20 ,  H04B2201/70706

Abstract: Codes are assigned and scheduled for data transmissions, between a radio station and at least one subscriber station, over a wireless interface of a radio communication system, in such a way that both for transmissions in the upward direction (uplink), from subscriber stations to the radio station, and also for transmissions in the downward direction (downlink), from the radio station to subscriber stations, the lowest possible signal-to-average ratio can be achieved.

Abstract translation: 通过无线电通信系统的无线接口，以无线电台和至少一个用户台之间的数据传输分配和调度代码，使得既可以从上行方向（上行链路）向用户站传输 无线站，也可以从无线站到用户站向下方向（下行）的传输，可以实现最低的信号与平均比。

公开(公告)号：US07496130B2

公开(公告)日：2009-02-24

申请号：US10668547

申请日：2003-09-23

Applicant: Moray Denham Rumney

Inventor： Moray Denham Rumney

IPC: H04B1/69 ,  H04B1/707

CPC classification number: H04J13/18 ,  H04B2201/70706 ,  H04B2201/709709 ,  H04J13/004

Abstract: The existence of non-linearities in a spread-spectrum communications system can result in a transmitter generating code spurs projecting onto channels used to communicate information symbols between a transmitter and a receiver. The present invention provides a method of predicting at least one signalling code corresponding to at least one respective code spur by performing vector products of signalling codes expressed in a bipolar form to yield a signalling code where a code spur will occur.

Abstract translation: 在扩频通信系统中存在非线性可导致发射机产生代码突发到用于在发射机和接收机之间传送信息符号的信道上。 本发明提供了一种通过执行以双极形式表达的信令码的向量积来预测与至少一个相应代码杂散相对应的至少一个信令码的方法，以产生其中将发生码分支的信令码。

公开(公告)号：US20090028219A1

公开(公告)日：2009-01-29

申请号：US11880564

申请日：2007-07-23

Applicant: Goran Djuknic

Inventor： Goran Djuknic

IPC: H04B1/69

CPC classification number: H04B1/713 ,  H04B1/692 ,  H04B2201/70706

Abstract: A hybrid spread spectrum system includes a signal combiner for (a) receiving a plurality of spread spectrum encoded data signals and (b) forming a plurality of combined signals. A first set of mixers is included for (a) receiving the plurality of combined signals and at least two carriers, and (b) forming at least a two-carrier, constant envelope signal. A second set of mixers is also included for (a) receiving the at least two-carrier, constant envelope signal and a transmitter hopping signal and (b) forming a hybrid spread spectrum signal. The combined signals include (a) [s1(t)−s1(t)s2(t)s3(t)] and (b) [s2(t)+s3(t)], where si(t) are three separate spread spectrum encoded data signals. The transmitter hopping signal is a sequence of tones having (a) a duration Tc, where Tc is a chip duration, and (b) frequencies fn taken from a set of 2k values, where k is a number of bits from a pseudo-random noise (PRN) sequence.

Abstract translation: 混合扩频系统包括信号组合器，用于（a）接收多个扩频编码数据信号，（b）形成多个组合信号。 包括第一组混频器，用于（a）接收多个组合信号和至少两个载波，以及（b）形成至少一个双载波恒定包络信号。 还包括第二组混频器，用于（a）接收至少两载波恒定包络信号和发射机跳变信号，以及（b）形成混合扩频信号。 组合信号包括（a）[s1（t）-s1（t）s2（t）s3（t）]和（b）[s2（t）+ s3（t）]，其中si（t） 扩频编码数据信号。 发射机跳变信号是具有（a）持续时间Tc的音调序列，其中Tc是码片持续时间，以及（b）从一组2k值得到的频率fn，其中k是来自伪随机的比特数 噪声（PRN）序列。

公开(公告)号：US20080310484A1

公开(公告)日：2008-12-18

申请号：US12177619

申请日：2008-07-22

Applicant: Steve J. Shattil

Inventor： Steve J. Shattil

IPC: H04B1/707

CPC classification number: H04L27/0004 ,  H04B2201/70706 ,  H04L1/04 ,  H04L5/0023 ,  H04L5/023 ,  H04L25/0216 ,  H04L27/2601 ,  H04L27/2614

Abstract: Techniques for reducing peak-to-average power in multicarrier transmitters employ peak cancellation with subcarriers that are impaired by existing channel conditions. The use of Carrier Interferometry (CI) coding further improves the effectiveness of peak reduction. CI coding can also be impressed onto pulse sequences in the time domain, which enhances spectral selection and facilitates peak-power control.

Abstract translation: 降低多载波发射机的峰均功率的技术采用由现有信道条件削弱的副载波的峰值消除。 使用载波干涉测量（CI）编码进一步提高了峰值降低的有效性。 CI编码也可以在时域中的脉冲序列上印象，这增强了光谱选择并促进了峰值功率控制。

公开(公告)号：US07457371B2

公开(公告)日：2008-11-25

申请号：US11137384

申请日：2005-05-26

Applicant: Hirosada Atsuta

Inventor： Hirosada Atsuta

IPC: H04L27/00

CPC classification number: H04W52/34 ,  H04B2201/70706

Abstract: A transmission signal generating circuit in a radio base station that employs spread processing circuits in order to output spread transmission signals. The signal generating circuit further contains power class selecting circuits, which categorize spread transmission signals into power classes, a first adding circuit, which combines these signals, multipliers, which adjust transmission power of these signals for respective power classes, and a second adding circuit, which combines these signals. The circuit measures and quantinizes the total transmission power to output a power level. A power limitation control memory outputs a multiplication coefficient representing the power class for which transmission power control. Selectors in the circuit select when this control is permitted for a given power class and output this information to the multiplier corresponding to the class. When this control is inhibited for the class, a multiplication coefficient is formed from a predetermined value, and output to the corresponding multiplier.

Abstract translation: 一种无线基站中的发送信号生成电路，其使用扩展处理电路来输出扩展的发送信号。 信号发生电路还包括将扩展传输信号分类为功率等级的功率等级选择电路，组合这些信号的第一加法电路，调整各个功率等级的这些信号的发射功率的乘法器和第二加法电路， 它们结合了这些信号。 电路测量和量化总发射功率以输出功率电平。 功率限制控制存储器输出表示发射功率控制的功率等级的乘法系数。 当该控制被允许用于给定功率等级时，电路中的选择器选择该信号，并将该信息输出到与该等级对应的乘法器。 当对该类禁止该控制时，从预定值形成乘法系数，并输出到相应的乘法器。

公开(公告)号：US20080151854A1

公开(公告)日：2008-06-26

申请号：US12016793

申请日：2008-01-18

Applicant: Ramesh Mantha ,  Jeffrey P. Castura ,  Frank M. Van Heeswyk

Inventor： Ramesh Mantha ,  Jeffrey P. Castura ,  Frank M. Van Heeswyk

IPC: H04B7/216

CPC classification number: H04L1/0071 ,  H04B2201/70706 ,  H04L1/0083

Abstract: System and method for transmitting data over a communications link in at least two channels. At least one transmitter transmits data in the two channels simultaneously. At least one interleaver interleaves data to be transmitted in the two channels prior to transmission by the at least one transmitter. The at least one interleaver employs different sets of interleaving parameters when interleaving data to be transmitted in different channels, such that data to be transmitted in each channel is interleaved in a different pattern than data to be transmitted in the other channel(s). At least one receiver receives the data transmitted in at least one of the two channels. A de-interleaver, associated with the at least one receiver, employs the set of interleaving parameters corresponding to the at least one channel received by the at least one receiver to de-interleave data received by the at least one receiver.

Abstract translation: 用于通过至少两个通道中的通信链路发送数据的系统和方法。 至少一个发送器同时在两个通道中发送数据。 至少一个交织器在由至少一个发射机传输之前交织要在两个信道中传输的数据。 当交织要在不同频道中发送的数据时，所述至少一个交织器采用不同的交织参数集合，使得要在每个频道中发送的数据以不同于其他频道中要发送的数据的模式进行交织。 至少一个接收器接收在两个信道中的至少一个中发送的数据。 与至少一个接收机相关联的去交织器使用与由至少一个接收机接收的至少一个信道相对应的交织参数集合来对由至少一个接收机接收的数据进行解交织。

公开(公告)号：US20080150625A1

公开(公告)日：2008-06-26

申请号：US11614596

申请日：2006-12-21

Applicant: Lars Sundstrom

Inventor： Lars Sundstrom

IPC: H03K5/00

CPC classification number: H04L27/2624 ,  H04B2201/70706

Abstract: A method and apparatus taught herein reduce the peak-to-average ratio (PAR) of a complex-valued signal based on detecting peaks in the signal that are above a peak threshold, characterizing the detected peaks in Cartesian coordinates, generating cancellation pulses in Cartesian coordinates based on the detected peak characterizations. PAR reduction processing continues with canceling the detected peaks by combining the cancellation pulses with a correspondingly delayed version of the signal. Advantageously, peak detection may be performed in polar form using a computationally efficient peak detection algorithm that avoids calculation of the I and Q peak waveforms unless a signal peak beyond a defined threshold is present. In one or more embodiments, the generation and use of asymmetric and/or shaped cancellation pulses offers further performance advantages.

Abstract translation: 本文教导的方法和装置基于检测到高于峰值阈值的信号中的峰值来表示复数值信号的峰值平均比（PAR），表征笛卡尔坐标中检测到的峰值，产生笛卡尔坐标中的取消脉冲 基于检测到的峰值表征的坐标。 通过将消除脉冲与信号的相应延迟版本组合，PAR减小处理继续消除检测到的峰值。 有利地，峰值检测可以使用计算上有效的峰值检测算法以极性形式进行，其避免计算I和Q峰值波形，除非存在超出限定阈值的信号峰值。 在一个或多个实施例中，不对称和/或成形的取消脉冲的产生和使用提供了进一步的性能优点。