公开(公告)号：US07076637B2

公开(公告)日：2006-07-11

申请号：US10697592

申请日：2003-10-29

Applicant: Brian Harold Kelley ,  Ramesh Chandrasekhar

Inventor： Brian Harold Kelley ,  Ramesh Chandrasekhar

IPC: G06F9/48

CPC classification number: G06F21/53 ,  G06F9/468 ,  G06F9/4812

Abstract: System for providing transitions between operating modes of a device. The system includes a method for providing transitions between a privileged and a non-privileged operating mode. The method comprises executing an application in the non-privileged mode, generating an interrupt to request the services of a privileged function, and transitioning to the privileged mode to execute the privileged function, wherein the privileged function is executed as part of the same thread of execution as the application.

Abstract translation: 用于在设备的操作模式之间提供转换的系统。 该系统包括用于在特权和非特权操作模式之间提供转换的方法。 所述方法包括以非特权模式执行应用程序，产生中断以请求所述服务的特权功能，以及转换到所述特权模式以执行所述特权功能，其中所述特权功能作为所述特权功能的一部分执行 执行作为应用程序。

公开(公告)号：US07076266B2

公开(公告)日：2006-07-11

申请号：US10964404

申请日：2004-10-12

Applicant: Gurkanwal Singh Sahota

Inventor： Gurkanwal Singh Sahota

IPC: H04B7/00

CPC classification number: H04W52/52 ,  H04B17/13

Abstract: A technique for calibrating the open-loop transmit power of a wireless communication device overcomes the inherent nonlinearities in the gain control input of a variable gain amplifier (VGA). In one embodiment, a feedback circuit generates a signal indicative of the transmit power. This signal is compared with a desired transmit power level, which comprises an open-loop gain component and a closed-loop gain component. The desired transmit power level is compared with the actual transmit power level and an error signal is generated. The error signal is used to alter the gain of the VGA in the transmitter to thereby adjust the actual transmit power level to correspond with the desired transmit power level. In alternative embodiment, the receiver portion, which also contains a VGA, is pre-calibrated in a conventional manner. During a transmitter calibration process, the transmitter is coupled to the receiver input through a mixer and filter. The pre-calibrated receiver determines the actual transmit power level. The difference is used to generate error correction data to adjust for non linearities in the gain control input of the transmitter VGA.

公开(公告)号：US07072359B2

公开(公告)日：2006-07-04

申请号：US10192134

申请日：2002-07-09

Applicant: Nobuyuki Uchida ,  Hai Qu

Inventor： Nobuyuki Uchida ,  Hai Qu

IPC: H04J3/22

CPC classification number: H04W4/14 ,  H04L51/066 ,  H04L51/38 ,  H04W4/18 ,  H04W88/184 ,  H04W92/02

Abstract: Techniques for converting short messages between different formats (e.g., from GSM SMS to CDMA SMS) such that pertinent control information is retained without changing the fundamental structure of these message formats. A new value is defined for the Msg_Encoding field in the User Data subparameter of the CDMA SMS message to indicate that the content of this message is an encapsulated GSM SMS message. The Message_Type field in the User Data subparameter may be used to carry data coding scheme information for the encapsulated GSM SMS message. At a recipient mobile station, the value in the Msg_Encoding field is checked to determine whether or not the CDMA SMS message includes an encapsulated GSM SMS message. If the answer is yes, then the user data in the CHARi fields of the CDMA SMS message is processed based on the data coding scheme information from the Message_Type field.

Abstract translation: 用于将不同格式（例如，从GSM SMS到CDMA SMS）之间的短消息转换成使得相关控制信息被保留而不改变这些消息格式的基本结构的技术。 为CDMA SMS消息的用户数据子参数中的Msg_Encoding字段定义新值，以指示该消息的内容是封装的GSM SMS消息。 用户数据子参数中的Message_Type字段可以用于承载封装的GSM SMS消息的数据编码方案信息。 在收件人移动站处，检查Msg_Encoding字段中的值，以确定CDMA SMS消息是否包括封装的GSM SMS消息。 如果答案为是，则基于来自Message_Type字段的数据编码方案信息处理CDMA SMS消息的CHARi字段中的用户数据。

公开(公告)号：US07058145B2

公开(公告)日：2006-06-06

申请号：US09874661

申请日：2001-06-04

Applicant: Michael J. Wengler

Inventor： Michael J. Wengler

IPC: H04L1/02

CPC classification number: H01Q9/28 ,  H04B7/022 ,  H04B7/0848 ,  H04B7/086

Abstract: A receiver chain (53) for use in a wireless communication system includes a compact, highly correlated, multi-element antenna. The multiple antenna elements (34) and (35) are configured to receive a signal from at least one base station. The highly correlated signals output from the antenna elements (34 and 35) are optimally combined in a controller (55) using a set of weighting factors. The set of weighting factors for each base station signal is determined in response to the spatial signatures of the received signals.

Abstract translation: 用于无线通信系统的接收器链（53）包括紧凑的，高度相关的多元天线。 多个天线元件（34）和（35）被配置为从至少一个基站接收信号。 使用一组加权因子，在控制器（55）中将从天线元件（34和35）输出的高度相关的信号最佳地组合。 响应于接收信号的空间特征确定每个基站信号的加权因子集合。

公开(公告)号：US07047405B2

公开(公告)日：2006-05-16

申请号：US09826742

申请日：2001-04-05

Applicant: Anthony Mauro

Inventor： Anthony Mauro

IPC: H04L9/00 ,  H04K1/00

CPC classification number: H04L63/0823 ,  G06Q20/367 ,  G06Q20/3672 ,  G06Q20/3674 ,  G06Q20/3676 ,  G06Q20/3678 ,  G06Q20/382 ,  G06Q20/3821 ,  H04W12/06 ,  H04W88/02

Abstract: Techniques for providing secure processing and data storage for a wireless communication device. In one specific design, a remote terminal includes a data processing unit, a main processor, and a secure unit. The data processing unit processes data for a communication over a wireless link. The main processor provides control for the remote terminal. The secure unit includes a secure processor that performs the secure processing for the remote terminal (e.g., using public-key cryptography) and a memory that provides secure storage of data (e.g., electronics funds, personal data, certificates, and so on). The secure processor may include an embedded ROM that stores program instructions and parameters used for the secure processing. For enhanced security, the secure processor and memory may be implemented within a single integrated circuit. Messaging and data may be exchanged with the secure unit via a single entry point provided by a bus.

公开(公告)号：US07031291B2

公开(公告)日：2006-04-18

申请号：US10428400

申请日：2003-05-02

Applicant: An Mei Chen ,  Ling Hang ,  Sajith Balraj ,  Ben Saidi

Inventor： An Mei Chen ,  Ling Hang ,  Sajith Balraj ,  Ben Saidi

IPC: H04B7/216

CPC classification number: H04W76/27 ,  H04W52/0216 ,  H04W52/0219 ,  H04W68/00

Abstract: Methods and apparatus for exchanging information with a dormant target communication device provide for locating a dormant target communication device by a wireless infrastructure, forwarding information to the dormant target communication device by the wireless infrastructure, and allowing the dormant target communication device, upon receiving said information from the wireless structure, to start forwarding information to the wireless structure. The methods and apparatus further provides for piggybacking information sent to and/or received from the dormant target communication device.

Abstract translation: 用于与休眠目标通信装置交换信息的方法和装置提供了通过无线基础设施定位休眠目标通信装置，通过无线基础设施将信息转发到休眠目标通信装置，并且在接收到所述信息时允许休眠目标通信装置 从无线结构开始向无线结构转发信息。 所述方法和装置还提供捎带发送到和/或从休眠目标通信设备接收的信息。

公开(公告)号：US07023902B2

公开(公告)日：2006-04-04

申请号：US10007543

申请日：2001-11-06

Applicant: Gilbert Christopher Sih ,  Ziad Mansour

Inventor： Gilbert Christopher Sih ,  Ziad Mansour

IPC: H04K1/00

CPC classification number: H04B1/7117 ,  H04B2201/70707

Abstract: Techniques for scalable CDMA demodulation with maximum response latency are disclosed. In one aspect, a finger timing unit generates signals indicating cycle boundaries for a plurality of fingers, and an offline processing unit processes stored samples for those fingers in response to the signals. In another aspect, incoming samples are stored in a RAM, while finger timing is maintained using a plurality of counters. The RAM address is stored on symbol boundaries. Symbols for each finger are generated in an offline processing unit, clocked at a higher speed than the finger counters, from a RAM location computed using the stored RAM address. Various other aspects are also presented. These aspects provide for decoupling of the chip rate processing from chip time, which allows a single offline processing unit to service a plurality of fingers, thus reducing additional hardware required to support additional fingers while maintaining maximum latency requirements.

Abstract translation: 公开了具有最大响应延迟的可扩展CDMA解调技术。 一方面，手指定时单元产生指示多个手指的周期边界的信号，并且离线处理单元响应于该信号来处理这些手指的存储样本。 在另一方面，输入的样本存储在RAM中，而使用多个计数器保持手指定时。 RAM地址存储在符号边界上。 从使用存储的RAM地址计算的RAM位置的离线处理单元生成以比手指计数器更高的速度产生的符号。 还提出了各种其他方面。 这些方面提供了芯片速率处理与芯片时间的去耦合，这允许单个脱机处理单元为多个指状物提供服务，从而减少支持附加手指所需的附加硬件，同时保持最大等待时间要求。

公开(公告)号：US07020225B2

公开(公告)日：2006-03-28

申请号：US10017073

申请日：2001-12-07

Applicant: Nagabhushana T. Sindhushayana ,  Serguei A. Glazko ,  Peter J. Black

Inventor： Nagabhushana T. Sindhushayana ,  Serguei A. Glazko ,  Peter J. Black

IPC: H04L27/06 ,  H04L7/00

CPC classification number: H04B1/707 ,  H04L27/2272 ,  H04L2027/0055 ,  H04L2027/0065 ,  H04L2027/0087

Abstract: A searcher is centered on frequency bins to search for an incoming signal. The frequency locked loop generates an initial phase signal and a phase increment signal that are input to an accumulator. The accumulator accumulates the phase increments over a predetermined interval. After the interval, the accumulator generates a control signal that instructs a rotator to perform a phase rotation function.

公开(公告)号：US07012911B2

公开(公告)日：2006-03-14

申请号：US09871563

申请日：2001-05-31

Applicant: Nitin Kasturi ,  Rajat Rajinderkumar Dhawan ,  Daisuke Terasawa ,  Avneesh Agrawal ,  Arak Sutivong

Inventor： Nitin Kasturi ,  Rajat Rajinderkumar Dhawan ,  Daisuke Terasawa ,  Avneesh Agrawal ,  Arak Sutivong

IPC: H04B7/20 ,  H04J3/02 ,  H04Q7/00

CPC classification number: H04L1/0071 ,  H04J13/00 ,  H04L1/0041 ,  H04L1/0065 ,  H04L1/08

Abstract: Techniques for efficient W-CDMA modulation are disclosed. In one aspect, a multiplexing/coding chain for use in modulation such as that defined by the W-CDMA specification is disclosed. In another aspect, transport blocks are processed and concatenated, utilizing memory efficiently. This aspect has the further benefit of preparing transport channels for efficient subsequent processing. It also allows for ease of interface with the transport channel source. In another aspect, the use of repeated channel coding is used in lieu of an interleaver memory to provide channel coding and interleaving. These aspects, collectively, yield the advanced benefits of a system, such as W-CDMA, in a hardware efficient manner. The techniques described herein apply equally to both access points and access terminals. The techniques are not limited to W-CDMA systems; they are quite suitable to other systems requiring the various benefits the invention offers. Various other aspects of the invention are also presented.

公开(公告)号：US07002946B2

公开(公告)日：2006-02-21

申请号：US09907096

申请日：2001-07-16

Applicant: Andrew Sendonaris

Inventor： Andrew Sendonaris

IPC: H04B7/216

CPC classification number: H04L27/0014 ,  H04L2027/0024 ,  H04L2027/0055 ,  H04L2027/0065

Abstract: A cross product is determined for a received signal. A dot product is also determined for the received signal. If the cross product is greater than a predetermined threshold, the cross product is decremented by the product of the dot product multiplied by a constant value. If the cross product is less than or equal to the predetermined threshold, the cross product is incremented by the product of the dot product multiplied by the constant value. The incrementing or decrementing is continued until the frequency error approaches a minimum value.

Abstract translation: 确定接收信号的交叉积。 还针对接收到的信号确定点积。 如果十字积大于预定阈值，则交叉乘积乘积乘积恒定值的积乘积。 如果交叉积小于或等于预定阈值，则交叉乘积乘以点乘积乘以常数值的乘积。 继续递增或递减直到频率误差接近最小值。