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    • 11. 发明授权
    • Method and system for adaptively combining signals
    • 自适应组合信号的方法和系统
    • US07184500B2
    • 2007-02-27
    • US10334205
    • 2002-12-30
    • Yingxue LiHaim Harel
    • Yingxue LiHaim Harel
    • H04B7/10H04L1/02
    • H04B7/0857H04B1/707
    • Combining signals includes receiving a plurality of groups of signals at a plurality of antennas at a mobile device, where each group of signals includes a plurality of signals, and each signal includes a time slot. The following is repeated for each group of signals of the plurality of groups of signals. An adjustment associated with a time slot of each signal is set. Each signal of the group of signals is adjusted at the time slot in accordance with the adjustment associated with the time slot. A signal quality associated with each time slot of each signal of the group of signals is established, and an optimal adjustment in accordance with the signal qualities is determined. The signals are adjusted in accordance with the optimal adjustment.
    • 组合信号包括在移动设备处在多个天线处接收多组信号,其中每组信号包括多个信号,并且每个信号包括时隙。 对于多组信号的每组信号重复以下。 设置与每个信号的时隙相关联的调整。 根据与时隙相关联的调整,在时隙处调整信号组中的每个信号。 确定与该组信号的每个信号的每个时隙相关联的信号质量,并且确定根据信号质量的最佳调整。 信号根据最佳调整进行调整。
    • 12. 发明授权
    • Method of transmitting low-power frequency hopped spread spectrum data
    • 低功率跳频扩频数据传输方法
    • US5546422A
    • 1996-08-13
    • US362114
    • 1994-12-22
    • Hanoch YokevHaim HarelYehouda Meiman
    • Hanoch YokevHaim HarelYehouda Meiman
    • G01S1/02G01S3/02G01S3/04G01S3/10G01S5/00G01S5/02G01S5/04G01S19/25G01S19/27H04B1/713H04B1/7156H04B7/26H04W64/00H04W84/02H04W88/02
    • H04W64/00G01S1/026G01S3/023G01S3/043G01S3/10G01S5/0009G01S5/021G01S5/04H04B1/713H04B1/7156H04B7/2681H04B7/2693H04L5/0053H04W84/025H04L5/0007H04L5/0062H04L5/0091H04W88/022
    • An acknowledgement paging system is described which fits within the existing infrastructure of a paging network and which provides low cost manufacture and low power operation while still enabling the acknowledgement paging over long distances. The acknowledgement paging system consists of a standard paging transmitter and a plurality of remote paging units which respond to a page using frequency-hopped spread-spectrum differential bi-phase shift keying communications. The plurality of pagers are assigned to groups with each group being assigned a separate starting location in a common, repeating pseudo-random noise code which determines the frequency hops. The grouping of pagers minimizes the collisions of acknowledgment transmissions between groups and the enables a large number of paging units to operate within a single geographic area. The pagers include a special double loop PLL synthesizer to produce an accurate narrow band frequency and to change or hop frequencies in a rapid fashion. The base receiving unit employs special algorithms for retrieving very low power acknowledgement paging messages in a noisy environment by using data redundancy, data interleaving, soft decoding and error correction codes to strip the bi-phase-modulated, frequency-hopped spread-spectrum digital data transmitted from the remote pocket pagers. A history of the frequency and phase drift is used during reception of the acknowledgement messages to predict the phase and frequency drift of the encoded digital information to further reduce decoding error. Signal to noise ratios are determined for each frequency hop and relatively noisy hops are discarded or minimized in a soft decoding process based redundancy of data bits.
    • 描述了一种确认寻呼系统,其适合于寻呼网络的现有基础设施,并且在远距离执行确认寻呼的同时提供低成本的制造和低功率操作。 确认寻呼系统由标准寻呼发射机和使用跳频扩频差分双相移键控通信响应寻呼的多个远程寻呼单元组成。 多个寻呼机被分配给组,其中每个组被分配在确定跳频的公共重复伪随机噪声码中的单独的起始位置。 寻呼机的分组使组之间的确认传输的冲突最小化,并且使得大量寻呼单元能够在单个地理区域内操作。 寻呼机包括一个特殊的双回路PLL合成器,以产生精确的窄带频率,并以快速方式改变或跳频。 基站接收单元采用特殊算法,通过使用数据冗余,数据交织,软解码和纠错码来消除双相调制的跳频扩频数字数据,在噪声环境中检索极低功率的确认寻呼消息 从远程口袋传呼机传输。 在接收确认消息期间使用频率和相位漂移的历史来预测编码的数字信息的相位和频率漂移以进一步减少解码错误。 针对每个跳频确定信噪比,并且在基于软解码过程的数据比特冗余中丢弃或最小化相对噪声的跳。
    • 14. 发明授权
    • Method, system and apparatus using multiple feedbacks for uplink closed-loop beamforming
    • 使用多个反馈的上行链路闭环波束成形的方法,系统和装置
    • US08903319B2
    • 2014-12-02
    • US13371248
    • 2012-02-10
    • Sherwin J. WangKenneth KludtPhil F. ChenHaim Harel
    • Sherwin J. WangKenneth KludtPhil F. ChenHaim Harel
    • H04B1/00H04B7/00H04B7/04H04B7/06H04W52/42
    • H04B7/0617H04B7/0404H04B7/0619H04B7/0623H04B7/0634H04W52/42
    • A method, apparatus, and system for transmitting and controlling uplink diversity signals in a mobile communication device. While in a soft handoff situation, a mobile communications device may receive a phase feedback signal from a non-serving base station. The mobile device may calculate a modified phase parameter based on the phase feedback signal from the non-serving base station in order to minimize interference with the non-serving base station, for example, by calculating a modified value of a phase difference in a direction opposite to the direction desired by the non-serving base station. In some embodiments of the invention, the mobile device may determine whether to calculate the modified phase parameter in a direction opposite to the direction indicated by the phase feedback signal of the non-serving base station based on a comparison of power feedback signals received from the non-serving and serving base stations.
    • 一种用于在移动通信设备中发送和控制上行链路分集信号的方法,装置和系统。 在软切换情况下,移动通信设备可以从非服务基站接收相位反馈信号。 移动设备可以基于来自非服务基站的相位反馈信号来计算修改的相位参数,以便最小化对非服务基站的干扰,例如,通过计算方向上的相位差的修改值 与非服务基站所期望的方向相反。 在本发明的一些实施例中,移动设备可以基于从所述非服务基站接收的功率反馈信号的比较来确定是否在与非服务基站的相位反馈信号所指示的方向相反的方向上计算修改的相位参数 非服务和服务基站。
    • 17. 发明授权
    • System and method for adaptive beamforming for specific absorption rate control
    • 用于特定吸收率控制的自适应波束成形的系统和方法
    • US08442457B2
    • 2013-05-14
    • US12876977
    • 2010-09-07
    • Haim HarelPhil F. ChenKenneth Kludt
    • Haim HarelPhil F. ChenKenneth Kludt
    • H04B7/02H04B1/04H01Q11/12
    • H01Q3/00H01Q3/2605H04B1/3838H04B7/0404H04B7/0617H04B7/0689H04B17/103Y02D70/40Y02D70/444
    • A system may include a modifiable mobile device having at least two antennas coupled to fractional amplifiers, with returned power detectors. A beamformer unit provides adaptive beam shaping pattern, and a baseband processor provides beam pattern requirements, wherein the beamformer unit modifies the beam pattern requirements with return loss sampling information to shape the adaptive beam pattern so that a transmitted beam pattern minimizes transmitted power reflected back to the mobile device. A method may include regularly measuring a return power level, if output power is greater than a specific absorption rate level, comparing the return power level to a first threshold, else implementing mobile transmit diversity (MTD), and repeating. If the return power level is greater than the first threshold, implementing a MTD combined with reflection-based beamforming that modifies beam pattern requirements of the mobile device with return loss sampling information to create an adaptive beam pattern.
    • 系统可以包括具有耦合到分数放大器的至少两个天线的可修改移动设备,其具有返回的功率检测器。 波束形成器单元提供自适应波束整形模式,并且基带处理器提供波束图案要求,其中波束形成器单元利用回波损耗采样信息来修改波束图案要求,以形成自适应波束图案,使得发射波束图案将发射功率最小化,反射回到 移动设备。 方法可以包括如果输出功率大于特定吸收率水平,则将定时测量返回功率水平,将返回功率水平与第一阈值进行比较,否则实现移动发射分集(MTD)并重复。 如果返回功率水平大于第一阈值,则实施MTD结合基于反射的波束成形,其通过返回损耗采样信息修改移动设备的波束图案要求,以创建自适应波束图案。
    • 18. 发明申请
    • METHOD, SYSTEM AND APPARATUS USING MULTIPLE FEEDBACKS FOR UPLINK CLOSED-LOOP BEAMFORMING
    • 使用多个反馈进行UPLINK闭环光束的方法,系统和设备
    • US20120208467A1
    • 2012-08-16
    • US13371248
    • 2012-02-10
    • Sherwin J. WANGKenneth KLUDTPhil F. CHENHaim HAREL
    • Sherwin J. WANGKenneth KLUDTPhil F. CHENHaim HAREL
    • H04B7/02H04B1/02H03C7/02
    • H04B7/0617H04B7/0404H04B7/0619H04B7/0623H04B7/0634H04W52/42
    • A method, apparatus, and system for transmitting and controlling uplink diversity signals in a mobile communication device. While in a soft handoff situation, a mobile communications device may receive a phase feedback signal from a non-serving base station. The mobile device may calculate a modified phase parameter based on the phase feedback signal from the non-serving base station in order to minimize interference with the non-serving base station, for example, by calculating a modified value of a phase difference in a direction opposite to the direction desired by the non-serving base station. In some embodiments of the invention, the mobile device may determine whether to calculate the modified phase parameter in a direction opposite to the direction indicated by the phase feedback signal of the non-serving base station based on a comparison of power feedback signals received from the non-serving and serving base stations.
    • 一种用于在移动通信设备中发送和控制上行链路分集信号的方法,装置和系统。 在软切换情况下,移动通信设备可以从非服务基站接收相位反馈信号。 移动设备可以基于来自非服务基站的相位反馈信号来计算修改的相位参数,以便最小化对非服务基站的干扰,例如,通过计算方向上的相位差的修改值 与非服务基站所期望的方向相反。 在本发明的一些实施例中,移动设备可以基于从所述非服务基站接收的功率反馈信号的比较来确定是否在与非服务基站的相位反馈信号所指示的方向相反的方向上计算修改的相位参数 非服务和服务基站。