会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • System and method for transmitting and receiving a signal in a mobile communication system using a multiple input multiple output adaptive antenna array scheme
    • 使用多输入多输出自适应天线阵列方案在移动通信系统中发送和接收信号的系统和方法
    • US07499728B2
    • 2009-03-03
    • US10899400
    • 2004-07-26
    • Chan-Byoung ChaeChang-Ho SuhByoung-Yun KimKatz Marcos DanielPan-Yuh Joo
    • Chan-Byoung ChaeChang-Ho SuhByoung-Yun KimKatz Marcos DanielPan-Yuh Joo
    • H04M1/00
    • H04B7/0634H04B7/0617H04B7/0854
    • A method for transmitting and receiving weight information for creating transmission/reception beams in a mobile communication system using a multiple input multiple output adaptive antenna array scheme. The method includes a receiver receiving a predetermined signal, and differentially providing weights to a first scheme and a second scheme for minimizing an error between the received signal and a predetermined reference signal, thereby obtaining a minimum error value. The receiver generates a despread signal by despreading the received signal, produces a reception weight for creation of a reception beam by the receiver through calculation using the despread signal and the minimum error value, and produces a transmission weight for creation of a transmission beam by a counterpart transmitter through calculation using the reception weight and the minimum error value. The receiver generates predetermined feedback information including the transmission weight and a transmitter transmits the feedback information to a counterpart receiver.
    • 一种用于在使用多输入多输出自适应天线阵列方案的移动通信系统中发送和接收用于创建发送/接收波束的加权信息的方法。 该方法包括接收预定信号的接收机,并且差分地提供第一方案的权重和用于最小化接收信号与预定参考信号之间的误差的第二方案,由此获得最小误差值。 接收机通过解扩接收的信号来产生解扩信号,通过使用去扩展信号和最小误差值的计算产生接收机通过接收机产生接收波束的接收权重,并产生用于通过 通过使用接收权重和最小误差值计算对方发射机。 接收机产生包括传输权重的预定反馈信息,并且发射机将反馈信息发送到对方接收机。
    • 7. 发明授权
    • Transmission apparatus and method for use in mobile communication system based on orthogonal frequency division multiplexing scheme
    • 基于正交频分复用方案的移动通信系统中使用的传输装置和方法
    • US07417964B2
    • 2008-08-26
    • US10872807
    • 2004-06-21
    • Young-Kwon ChoKatz Marcos DanielSeok-Hyun YoonDong-Seek ParkSeong-Ill ParkHo-Kyu ChoiPan-Yuh JooYoung-Kyun KimHyeon-Woo Lee
    • Young-Kwon ChoKatz Marcos DanielSeok-Hyun YoonDong-Seek ParkSeong-Ill ParkHo-Kyu ChoiPan-Yuh JooYoung-Kyun KimHyeon-Woo Lee
    • H04B7/204
    • H04L5/006H04L5/0017H04L5/0046H04L5/0048
    • A transmitter for a mobile communication system based on an OFDM scheme and a method for controlling the same. The transmitter can implement a characteristic of a multiple access scheme based on an OFDM scheme, a characteristic of a CDMA scheme, and a characteristic of a frequency hopping scheme which has very strong resistance to the frequency selective fading. An apparatus for transmitting information bit sequences from a BS (Base Station) transmitter to different users, includes a plurality of channelizers for dividing a single frame of information bit sequences to be transmitted to individual users into a plurality of times according to a given time interval, simultaneously transmitting the information bit sequences to the individual users within the plurality of division times, dividing the information bit sequences, spreading the divided information bit sequences using different Walsh codes, converting the spread information bit sequences into a single sequence associated with the individual users, and outputting the single sequence; and a frequency hopper for dividing the single sequence, distributing the spread information bit sequences over a plurality of bandwidths capable of mapping-processing the spread information bit sequences with sub-carrier frequencies, and preventing each of the bandwidths from overlapping with time-frequency cells given by the given time interval.
    • 一种用于基于OFDM方案的移动通信系统的发射机及其控制方法。 发射机可以基于OFDM方案,CDMA方案的特征以及对频率选择性衰落具有非常强的抵抗性的跳频方案的特性来实现多址方案的特性。 用于从BS(基站)发射机向不同用户发送信息比特序列的装置包括:多个信道化器,用于根据给定的时间间隔将要发送给各个用户的单个信息比特序列划分成多个时间 同时在多个分割时间内将信息比特序列发送给各个用户,分割信息比特序列,使用不同的沃尔什码扩展分割的信息比特序列,将扩展信息比特序列转换成与各个用户相关联的单个序列 并输出单个序列; 以及用于分割单个序列的频率漏斗,在扩展信息比特序列分布在能够对扩展信息比特序列进行映射处理的子载波频率的多个带宽上分布,并且防止每个带宽与时频小区重叠 由给定的时间间隔给出。