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    • 3. 发明申请
    • Modular base station antenna control system
    • 模块化基站天线控制系统
    • US20050085267A1
    • 2005-04-21
    • US10498506
    • 2002-12-23
    • Paul LemsonGideon ArgamanJoseph ShapiraShmuel Miller
    • Paul LemsonGideon ArgamanJoseph ShapiraShmuel Miller
    • H04B7/10H04B7/26H04B17/00H04W16/24H04W88/08H04M1/00
    • H04W88/08H04B7/10H04B7/1555H04W16/24
    • A modular base station enhancing system includes multiple bi-directional amplifiers that are remotely controlled. Duplexers, corresponding to the bi-directional amplifiers, interface the bi-directional amplifiers with base station antenna elements, enabling simultaneous transmission and reception through the antenna elements. A control circuit, located remotely from the base station and the bi-directional amplifiers, enables control of at least one parameter in each of the bi-directional amplifiers to control transmission and reception characteristics of the antennas elements. The controllable bi-directional amplifiers may include a linear power amplifier to amplify transmitted signals and a low-noise amplifier to amplify received signals. The base station enhancing system is interoperable with different types of antenna elements, and may be implemented as a radio frequency (RF) front-end of the base station or as an RF repeater.
    • 模块化基站增强系统包括远程控制的多个双向放大器。 双向放大器对应于双向放大器,将双向放大器与基站天线元件接口,实现通过天线元件的同时传输和接收。 位于远离基站和双向放大器的控制电路使得能够控制每个双向放大器中的至少一个参数来控制天线元件的发射和接收特性。 可控双向放大器可以包括用于放大发射信号的线性功率放大器和用于放大接收信号的低噪声放大器。 基站增强系统可以与不同类型的天线元件互操作,并且可以被实现为基站的射频(RF)前端或者作为RF中继器。
    • 4. 发明授权
    • Radio telephone system for minimizing co-channel interference utilizing
geographic separation of signals and transmission power control
    • 无线电话系统,用于利用信号的地理分离和传输功率控制来最小化同频干扰
    • US5838673A
    • 1998-11-17
    • US557030
    • 1996-07-02
    • Mordechai RitzGiora SilbershatzShmuel Miller
    • Mordechai RitzGiora SilbershatzShmuel Miller
    • H04B7/005H04B1/713
    • H04W52/143H04W52/146H04W52/24Y02B60/50
    • A system for minimizing co-channel interference between transmission sectors at their common periphery. The system exploits the geographic separation of potentially interfering mobile transmitters and utilizes transmission power control. The system employs sectored antennas in a combined frequency hopping, TDMA system wherein each subscriber in a particular sector is assigned a time slot in the system based upon that subscriber's geographic location within that sector. The transmission power in the sector is reduced during certain predetermined time slots and subscribers who are remote from the fringe of the sector are assigned to these power reduced time slots. During up-link the transmission power for subscribers located proximal to the fringe are reduced to cause less co-channel interference between their signals and the signals from other subscribers in different sectors having the same time slot.
    • PCT No.PCT / US94 / 14562 Sec。 371日期:1996年7月2日 102(e)日期1996年7月2日PCT 1994年12月16日PCT PCT。 出版物WO95 / 17048 日期1995年6月22日一种用于最小化其通用外围的传输扇区之间的同频干扰的系统。 该系统利用潜在干扰移动发射机的地理分离,并利用发射功率控制。 该系统在组合的跳频TDMA系统中采用扇形天线,其中特定扇区中的每个用户基于该用户在该扇区内的地理位置在系统中分配时隙。 在某些预定时隙期间扇区中的发射功率减小,并且远离扇区边缘的用户被分配给这些功率减少的时隙。 在上行链路期间,减少了位于边缘附近的用户的发射功率,从而在其信号与来自具有相同时隙的不同扇区中的来自其他用户的信号之间造成较少的同信道干扰。
    • 7. 发明授权
    • Time-delay transmit diversity add-on to a multicarrier base transceiver system
    • 时延发射分集附加到多载波基站收发信机系统
    • US06957050B2
    • 2005-10-18
    • US10277102
    • 2002-10-22
    • Joseph ShapiraShmuel MillerPaul H. Lemson
    • Joseph ShapiraShmuel MillerPaul H. Lemson
    • H04B7/06H04C7/02H04B1/02H04B1/38
    • H04B7/0667H04B7/0678
    • At least two passive antenna arrays of an existing multicarrier base station transceiver system are supplemented by an auxiliary antenna array to provide a system and method of enhancing reverse link sensitivity and reducing the effects of multipath fading in a wireless communication system without the need for modifications to the mobile station. The auxiliary antenna array provides a complementary transmit diversity path for the two passive antennas such that a predetermined time delay is implemented to a composite transmit signal and the delayed composite transmit signal is fed directly to the auxiliary antenna array. The delayed signal and the signals from the passive antenna arrays provide a reduced noise figure and time delay transmit diversity for the multicarrier BTS operation.
    • 现有多载波基站收发器系统的至少两个无源天线阵列由辅助天线阵列补充,以提供增强反向链路灵敏度并减少无线通信系统中的多径衰落的影响的系统和方法,而不需要修改 移动台。 辅助天线阵列为两个无源天线提供互补的发射分集路径,使得对于复合发射信号实现预定的时间延迟,并且将延迟的复合发射信号直接馈送到辅助天线阵列。 来自无源天线阵列的延迟信号和信号为多载波BTS操作提供降低的噪声系数和时间延迟发射分集。