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51. 发明授权

US07302245B2 Method and apparatus for estimating and controlling initial time slot gain in a wireless communication system 失效
标题翻译：用于在无线通信系统中估计和控制初始时隙增益的方法和装置
公开(公告)号：US07302245B2
公开(公告)日：2007-11-27
申请号：US11327864
申请日：2006-01-09
申请人： Rui Yang , Donald M. Grieco , Leonid Kazakevich
发明人： Rui Yang , Donald M. Grieco , Leonid Kazakevich
IPC分类号： H04Q7/20
CPC分类号： H03G3/3052 , H03G3/3036 , H03G3/3042 , H03G3/3047 , H04L5/1484 , H04M3/40
摘要： In a time-division duplex (TDD) system, a reliable initialization scheme that is applicable to an automatic gain controller (AGC) at a base station is implemented in various forms depending on the availability of certain information such as signal-to-interference ratio (SIR), spreading factors and other parameters. A more accurate estimation of the initial control word of a gain-adjustable amplifier for one or more time slots is implemented. The scheme is applicable to AGC initialization for each time slot of the TDD system, but is also applicable to other systems of transmission, without limitation.
摘要翻译：在时分双工（TDD）系统中，可以根据某些信息的可用性（例如信号干扰比）来以各种形式实现适用于基站处的自动增益控制器（AGC）的可靠的初始化方案（SIR），扩散因子等参数。实现了用于一个或多个时隙的增益可调放大器的初始控制字的更准确的估计。该方案适用于TDD系统的每个时隙的AGC初始化，但也适用于其他传输系统，但不限于此。

52. 发明申请

US20070268978A1 Carrier offset estimator 审中-公开
标题翻译：载波偏移估计器
公开(公告)号：US20070268978A1
公开(公告)日：2007-11-22
申请号：US11888168
申请日：2007-07-31
申请人： Leonid Kazakevich , Fatih Ozluturk , Alexander Reznik
发明人： Leonid Kazakevich , Fatih Ozluturk , Alexander Reznik
IPC分类号： H04L5/12
CPC分类号： H04L27/3836 , H04L27/2332 , H04L27/3854 , H04L2027/0065 , H04L2027/0085
摘要： A system for estimating carrier offset includes includes a transmitter configured to transmit a quadrature modulated signal, and a receiver. The receiver includes an input configured to receive the quadrature modulated signal, a local oscillator configured to generate cosine and sine waves at a carrier frequency of the quadrature modulated signal, at least one cosine mixer configured to generate a carrier frequency demodulated output, at least one sine mixer configured to generate a carrier frequency demodulated output, a plurality of lowpass filters configured to filter the demodulated output of the cosine and sine mixers to produce filtered cosine and sine signal components, and a carrier offset detection processor to estimate a carrier offset between the carrier frequency and a local oscillator frequency based on the filtered output of the lowpass filters.
摘要翻译：用于估计载波偏移的系统包括：发射机，被配置为发送正交调制信号;以及接收机。所述接收机包括被配置为接收所述正交调制信号的输入端，被配置为在所述正交调制信号的载波频率上产生余弦和正弦波的本地振荡器，配置成产生载波频率解调输出的至少一个余弦混频器，至少一个配置为产生载波频率解调输出的多个低通滤波器，多个低通滤波器，被配置为对余弦和正弦混频器的解调输出进行滤波，以产生滤波余弦和正弦信号分量;以及载波偏移检测处理器，用于估计载波偏移基于低通滤波器的滤波输出的载波频率和本地振荡器频率。

53. 发明申请

US20070206684A1 Method and system for all digital gain control 失效
标题翻译：所有数字增益控制的方法和系统
公开(公告)号：US20070206684A1
公开(公告)日：2007-09-06
申请号：US11800114
申请日：2007-05-03
申请人： Leonid Kazakevich , Rui Yang
发明人： Leonid Kazakevich , Rui Yang
IPC分类号： H04B14/04
CPC分类号： H03G7/06 , H03G3/001 , H03M1/1235
摘要： An analog/digital gain control device avoid some of the requirements associated with the nature of a closed-loop AGC circuits and which meets the remaining requirements without much difficulty uses an analog to digital conversion method that increases the number of effective ADC bits by compressing the baseband input analog signal using a logarithmic circuit. After the compressed analog signal is converted into a digital signal, a digital anti-log process or look-up table (LUT) is used to expand the digital signal back to the original linear scale. The word size of the output of the anti-log process is larger than the input word size due to the nature of the anti-log function. To reduce the word size of the digital signal an open loop normalization technique can be applied.
摘要翻译：模拟/数字增益控制装置避免了与闭环AGC电路的性质相关的一些要求，并且满足剩余要求，而没有太多困难使用模数转换方法，通过压缩有效ADC位数来增加有效ADC位的数量基带输入模拟信号使用对数电路。在将压缩的模拟信号转换为数字信号之后，使用数字反对数处理或查找表（LUT）将数字信号扩展回原始的线性刻度。由于反日志功能的性质，反日志进程输出的字大小大于输入字大小。为了减小数字信号的字大小，可以应用开环归一化技术。

54. 发明授权

US07239874B2 Wireless communication method and system with controlled WTRU peer-to-peer communications 有权
标题翻译：无线通信方法和具有受控WTRU对等通信的系统
公开(公告)号：US07239874B2
公开(公告)日：2007-07-03
申请号：US11366114
申请日：2006-03-02
申请人： Gautam G. Reddy , Prabhakar R. Chitrapu , Leonid Kazakevich , Teresa Joanne Hunkeler , Arty Chandra
发明人： Gautam G. Reddy , Prabhakar R. Chitrapu , Leonid Kazakevich , Teresa Joanne Hunkeler , Arty Chandra
IPC分类号： H04Q7/20
CPC分类号： H04W88/04 , G01S5/0027 , H04W4/02 , H04W64/00 , H04W84/00 , H04W88/06
摘要： A wireless network provides controlled wireless communications with multi-mode wireless WTRUs. The wireless network has at least one base station having a transceiver operating in an infrastructure communication mode with multi mode WTRUs and a controller that transmits control signals via infrastructure communications with a WTRU that control peer-to-peer mode communications of that WTRU with other WTRUs. A WTRU has transceiver components configured for selective operation in an infrastructure communication mode with a network base station and in a peer-to-peer communication mode with other WTRUs. The WTRU also has a transceiver controller configured to selectively control peer-to-peer mode communications with other WTRUs based on communication signals received in infrastructure communications with a network base station. Preferably, the transceiver controller is configured to control the transceiver components to switch between infrastructure communication mode and peer-to-peer communication mode based on Quality of Service criteria.
摘要翻译：无线网络提供与多模式无线WTRU的受控无线通信。无线网络具有至少一个基站，其具有在具有多模式WTRU的基础设施通信模式中工作的收发器，以及控制器，其经由与WTRU的基础设施通信来发送控制信号，该WTRU控制该WTRU与其他WTRU的对等模式通信。 WTRU具有被配置为在与基站通信模式中的选择性操作并且与其他WTRU的对等通信模式中的选择性操作的收发器组件。 WTRU还具有收发器控制器，其被配置为基于在与基站通信的基础设施通信中接收的通信信号来选择性地控制与其他WTRU的对等模式通信。优选地，收发器控制器被配置为基于服务质量标准来控制收发器组件在基础设施通信模式和对等通信模式之间切换。

55. 发明申请

US20070117522A1 Multi-mode radio with interference cancellation circuit 有权
标题翻译：具有干扰消除电路的多模无线电
公开(公告)号：US20070117522A1
公开(公告)日：2007-05-24
申请号：US11654766
申请日：2007-01-17
申请人： Timothy Axness , Leonid Kazakevich
发明人： Timothy Axness , Leonid Kazakevich
IPC分类号： H04B1/44
CPC分类号： H04B1/0057 , H04B1/525
摘要： A multi-mode wireless transmit/receive unit (WTRU) includes at least one antenna, first and second communication mode receivers and a first communication mode transmitter. The first and second receivers simultaneously receive signals from the antenna. The first transmitter generates and sends a first type of signal to the antenna while, at the same time, the second receiver receives a second type of signal from the antenna. In a preferred embodiment, the WTRU further includes a vector multiplier configured to reduce or eliminate interference of signals received by the second receiver, the interference being caused by the first transmitter. The vector multiplier adjusts the phase and amplitude of noise (i.e., spurious in-band noise) measured by the second receiver. The WTRU may further include a second communication mode transmitter configured to generate and send a second type of signal to the antenna.
摘要翻译：多模式无线发射/接收单元（WTRU）包括至少一个天线，第一和第二通信模式接收机和第一通信模式发射机。第一和第二接收机同时从天线接收信号。第一发射机产生并向天线发送第一类型的信号，同时第二接收机从天线接收第二类型的信号。在优选实施例中，WTRU还包括被配置为减少或消除由第二接收机接收的信号的干扰的矢量乘法器，该干扰由第一发射机引起。矢量乘法器调节由第二接收机测量的噪声的相位和幅度（即，杂带带内噪声）。 WTRU可以进一步包括第二通信模式发射机，其被配置为产生并向天线发送第二类型的信号。

56. 发明申请

US20070085718A1 System and method for a direct conversion multi-carrier processor 审中-公开
标题翻译：直接转换多载波处理器的系统和方法
公开(公告)号：US20070085718A1
公开(公告)日：2007-04-19
申请号：US11562802
申请日：2006-11-22
申请人： Timothy Axness , Leonid Kazakevich
发明人： Timothy Axness , Leonid Kazakevich
IPC分类号： H03M3/00
CPC分类号： H04L5/06 , H03G3/3052 , H04B1/30 , H04L27/2608 , H04L27/3845
摘要： A method for a radio communications device such as a receiver, transmitter or transceiver provides direct conversion of quadrature signals between a radio frequency signal and a plurality of resolved channels. The method provides block processing of multiple RF carriers in a wireless communication system using a direct conversion transmitter/receiver and baseband signal processing.
摘要翻译：诸如接收机，发射机或收发机之类的无线电通信设备的方法提供了在射频信号和多个解决信道之间的正交信号的直接转换。该方法使用直接转换发射机/接收机和基带信号处理在无线通信系统中提供多个RF载波的块处理。

57. 发明申请

US20070036353A1 Authentication and encryption methods using shared secret randomness in a joint channel 审中-公开
标题翻译：在联合通道中使用共享秘密随机性的认证和加密方法
公开(公告)号：US20070036353A1
公开(公告)日：2007-02-15
申请号：US11444558
申请日：2006-05-31
申请人： Alexander Reznik , Debashish Purkayastha , Steven Goldberg , Robert Olesen , Marian Rudolf , Inhyok Cha , Alan Carlton , Yogendra Shah , Shamim Rahman , Rajat Mukherjee , Robert DiFazio , Gregory Sternberg , Leonid Kazakevich , Kazimierz Siwiak , Guodong Zhang , Tanbir Haque , Louis Guccione , Prabhakar Chitrapu , Akinlolu Kumoluyi , Alain Briancon
发明人： Alexander Reznik , Debashish Purkayastha , Steven Goldberg , Robert Olesen , Marian Rudolf , Inhyok Cha , Alan Carlton , Yogendra Shah , Shamim Rahman , Rajat Mukherjee , Robert DiFazio , Gregory Sternberg , Leonid Kazakevich , Kazimierz Siwiak , Guodong Zhang , Tanbir Haque , Louis Guccione , Prabhakar Chitrapu , Akinlolu Kumoluyi , Alain Briancon
IPC分类号： H04L9/30
CPC分类号： H04B7/0434 , H04B7/0695 , H04L9/0631 , H04L9/0656 , H04L9/0875 , H04L9/3271 , H04L63/0428 , H04L63/061 , H04L63/08 , H04L63/1441 , H04L63/1466 , H04L63/18 , H04L2209/34 , H04L2209/80 , H04W12/00503 , H04W12/00508 , H04W12/02 , H04W12/04 , H04W12/06 , H04W92/10
摘要： The present invention relates to secret key generation and authentication methods that are based on joint randomness not shared by others (JRNSO), in which unique channel response between two communication terminals generates a secret key. Multiple network access points use a unique physical location of a receiving station to increase user data security. High data rate communication data is encrypted by generating a random key and a pseudo-random bit stream. A configurable interleaving is achieved by introduction of JRNSO bits to an encoder used for error-correction codes. Databases of user data are also protected by JRNSO-based key mechanisms. Additional random qualities are induced on the joint channel using MIMO eigen-beamforming, antenna array deflection, polarization selection, pattern deformation, and path selection by beamforming or time correlation. Gesturing induces randomness according to uniquely random patterns of a human user's arm movements inflected to the user device.
摘要翻译：本发明涉及基于其他人不共享的联合随机性（JRNSO）的秘密密钥生成和认证方法，其中两个通信终端之间的唯一信道响应产生密钥。多个网络接入点使用接收站的唯一物理位置来增加用户数据的安全性。通过生成随机密钥和伪随机比特流来加密高数据速率通信数据。通过将JRNSO位引入用于纠错码的编码器来实现可配置的交错。用户数据的数据库也受到基于JRNSO的关键机制的保护。使用MIMO本征波束形成，天线阵列偏转，偏振选择，图案变形以及通过波束形成或时间相关的路径选择在联合信道上引起附加随机质量。手势根据用户装置的人体手臂运动的唯一随机模式引起随机性。

58. 发明申请

US20060205403A1 Format converter for WLAN-UMTS interworking employing UMTS air interface 失效
公开(公告)号：US20060205403A1
公开(公告)日：2006-09-14
申请号：US11433958
申请日：2006-05-15
申请人： Kamel Shaheen , Leonid Kazakevich
发明人： Kamel Shaheen , Leonid Kazakevich
IPC分类号： H04Q7/20
CPC分类号： H04W92/02
摘要： A format converter for use with a universal mobile telecommunications system (UMTS) having a transceiver, a wireless local area network (WLAN) having an access point (AP) and a wireless terminal, for providing access to the UMTS by the terminal. The format converter comprises a WLAN transceiver for sending and receiving messages to and from the AP; a UMTS transceiver for sending and receiving messages to and from the transceiver in the UMTS; and a translator for translating WLAN messages to UMTS format and UMTS messages to WLAN format.

59. 发明授权

US07085255B2 Selectively activated AGC signal measurement unit 失效
公开(公告)号：US07085255B2
公开(公告)日：2006-08-01
申请号：US09872038
申请日：2001-06-01
申请人： Alexander Jacques , Leonid Kazakevich , Avi Silverberg
发明人： Alexander Jacques , Leonid Kazakevich , Avi Silverberg
IPC分类号： H04B7/212
CPC分类号： H04W52/52 , H03G3/3047
摘要： In a TDD wireless communication system between transmitters and associated receivers, automatic gain control of a receiver is only applied during the corresponding time slot within the TDD signal time frame architecture. Successive received signal strengths are measured and gain levels are stored as estimates for an initial gain level in future time slots of the TDD signal. Estimating techniques, such as averaging or trending of received signal strength over successive time slots, and averaging or trending of gain level settings, provide improved estimation of future initial gain levels.

60. 发明申请

US20060050810A1 Hybrid transmitter architecture having high efficiency and large dynamic range 审中-公开
标题翻译：混合发射机架构具有高效率和大动态范围
公开(公告)号：US20060050810A1
公开(公告)日：2006-03-09
申请号：US11192523
申请日：2005-07-29
申请人： Tanbir Haque , Leonid Kazakevich
发明人： Tanbir Haque , Leonid Kazakevich
IPC分类号： H04L25/49 , H04L27/20
CPC分类号： H03F3/24 , H03F1/34 , H03F2200/336 , H03F2200/57 , H04L27/364
摘要： An adaptive hybrid transmitter architecture for use in a communication unit which dynamically adapts to maximize efficiency, delivers a large dynamic range and provides good distortion performance depending upon the required output power of the transmitter. In the upper portion of the operating range, the hybrid transmitter operates in a sigma delta mode including a noise shaping feedback loop. In the middle portion of the operating range, the transmitter operates in a Cartesian correction mode for error correction. At the lower portion of the operating range, the amplifier is operated in a linear mode, without feedback.
摘要翻译：用于通信单元的自适应混合发射机架构，其动态地适应最大化效率，提供大的动态范围，并且根据发射机的所需输出功率提供良好的失真性能。在操作范围的上部，混合发射机以包括噪声整形反馈回路的Σ-Δ模式工作。在操作范围的中间部分，发射机以笛卡尔校正模式操作，用于纠错。在工作范围的较低部分，放大器工作在线性模式，无反馈。

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