中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

624 records (took 0.033 seconds)

    METHOD AND DEVICE FOR TRANSMITTING DATA
    121.
    发明申请
    METHOD AND DEVICE FOR TRANSMITTING DATA 审中-公开
    数据传输方法及装置

    公开(公告)号：WO01024395A1

    公开(公告)日：2001-04-05

    申请号：PCT/DE2000/003417

    申请日：2000-09-28

    IPC: H04B1/707 ,  H04J11/00 ,  H04J13/00 ,  H04J13/12

    CPC classification number: H04B1/7097 ,  H04B2201/70705 ,  H04J13/0022 ,  H04J13/12

    Abstract: The invention relates to a method for transmitting data wherein a CDMA-coded data signal is transmitted in the form of a data flow consisting of spread data bursts between a transmitter and a receiver (RE, E1, ..., En), whereby hierarchical CDMA codes are used for transmission. In a first step, the spread data is detected according to a mother code c of the receiver code(s). In a second step, the detected code is unspread by means of generator(s) (a, b). In a third step, the detection process is interrupted if the data is sufficiently unspread or the second step with the latest unspread data is repeated until said data is sufficiently unspread.

    Abstract translation: 本发明提供了其中在从一个发送器和一个接收器之间的扩展数据突发的数据流的形式的CDMA编码的数据信号（RE，E1，...，EN）被传送时，具有分级CDMA码被用于传输的数据传输方法。 在第一步骤中扩展数据根据的或接收码的母码c“（I，> 检测。 在第二步骤中，检测到的数据通过与或发电机解扩解扩（A，B）。 在第三步骤中，如果数据被解扩足够远，或以其它方式，重复与上次的解扩数据的第二步骤，直到数据被解扩足够远的检测过程被中断。

    WIRELESS COMMUNICATIONS METHOD, USER EQUIPMENT, BASE STATION AND SYSTEM
    123.
    发明申请
    WIRELESS COMMUNICATIONS METHOD, USER EQUIPMENT, BASE STATION AND SYSTEM 有权
    无线通信方法，用户设备，基站和系统

    公开(公告)号：US20160013832A1

    公开(公告)日：2016-01-14

    申请号：US14866282

    申请日：2015-09-25

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yongxia LYU ,  Tong JI ,  Wen ZHANG

    IPC: H04B1/709 ,  H04B1/69 ,  H04W4/00

    CPC classification number: H04B1/709 ,  H04B1/69 ,  H04B2201/70703 ,  H04B2201/70705 ,  H04J13/0003 ,  H04L25/03006 ,  H04W4/70 ,  H04W24/02 ,  H04W88/08

    Abstract: Embodiments of the present invention provide a wireless communications method, user equipment, a base station and a system, and relate to the field of wireless communications. The method includes: acquiring a frequency domain spreading factor, a symbol-level spreading factor and a transmission time interval-level spreading factor; and performing frequency domain spreading, symbol-level spreading and transmission time interval-level spreading on first to-be-sent information respectively according to the acquired spreading factors and sending first spread information; or, despreading, according to the acquired spreading factors, second spread information sent by a base station.

    Abstract translation: 本发明的实施例提供一种无线通信方法，用户设备，基站和系统，并涉及无线通信领域。 该方法包括：获取频域扩频因子，符号级扩频因子和传输时间间隔级扩频因子; 并且根据所获取的扩展因子分别对第一待发送信息执行频域扩展，符号级扩展和传输时间间隔级扩展，并发送第一扩展信息; 或者，根据获取的扩频因素解扩，由基站发送的第二扩频信息。

    DATA DETECTION FOR CODES WITH NON-UNIFORM SPREADING FACTORS
    126.
    发明申请
    DATA DETECTION FOR CODES WITH NON-UNIFORM SPREADING FACTORS 有权
    具有非均匀扩展因子的代码的数据检测

    公开(公告)号：US20100020856A1

    公开(公告)日：2010-01-28

    申请号：US12549959

    申请日：2009-08-28

    Applicant: Younglok Kim ,  Jung-Lin Pan ,  Ariela Zeira ,  Alexander Reznik

    Inventor： Younglok Kim ,  Jung-Lin Pan ,  Ariela Zeira ,  Alexander Reznik

    IPC: H04B1/707

    CPC classification number: H04J13/0044 ,  H04B1/707 ,  H04B1/71052 ,  H04B1/71055 ,  H04B2201/70703 ,  H04B2201/70705

    Abstract: A plurality of communication signals is received. Each communication signal has an associated code. At least two of the communication signals has a different spreading factor. The associated codes have a scrambling code period. A total system response matrix has blocks. Each block has one dimension of a length M and another dimension of a length based on in part M and the spreading factor of each communication. M is based on the scrambling code period. Data of the received plurality of communication signals is received using the constructed system response matrix.

    Abstract translation: 接收多个通信信号。 每个通信信号具有相关代码。 至少两个通信信号具有不同的扩展因子。 相关代码具有扰码周期。 总系统响应矩阵具有块。 每个块具有长度M的一维和基于部分M的长度的另一维度和每个通信的扩展因子。 M基于扰码周期。 使用所构建的系统响应矩阵来接收所接收的多个通信信号的数据。

    Spread spectrum communication system
    127.
    发明授权
    Spread spectrum communication system 失效
    扩频通信系统

    公开(公告)号：US07415060B1

    公开(公告)日：2008-08-19

    申请号：US10089145

    申请日：1999-09-29

    Applicant: Harri Holma

    Inventor： Harri Holma

    IPC: H04B1/707

    CPC classification number: H04B1/707 ,  H04B2201/70705

    Abstract: Techniques and systems for estimating the spreading factor of data in a channel in a spread spectrum radio communication system is described. An illustrative method includes communication between a base station and a mobile station that takes place over a multirate data channel having a corresponding control channel. The control channel is transmitted in parallel with the data channel and is decoded to extract control information in order to decode the data channel. An illustrative method and system for estimating the spreading factor of data in a channel in a spread spectrum radio communication system includes a transmitter and a receiver, wherein the transmitter transmits a data unit at one of a plurality of spreading factors over a data channel and transmits in parallel over a control channel a control unit including information for decoding the data unit.

    Abstract translation: 描述了用于估计扩频无线电通信系统中的信道中的数据的扩展因子的技术和系统。 说明性方法包括在具有相应控制信道的多速率数据信道上发生的基站与移动台之间的通信。 控制信道与数据信道并行发送，并被解码以提取控制信息以便解码数据信道。 用于估计扩频无线电通信系统中的信道中的数据的扩频因子的说明性方法和系统包括发射机和接收机，其中，所述发射机通过数据信道以多个扩频因子中的一个发射数据单元，并发射 在控制信道上并行地包括用于解码数据单元的信息的控制单元。

    DUAL MODE WPAN TRANSCEIVER
    128.
    发明申请
    DUAL MODE WPAN TRANSCEIVER 审中-公开
    双模WPAN收发器

    公开(公告)号：US20080137570A1

    公开(公告)日：2008-06-12

    申请号：US11951040

    申请日：2007-12-05

    Applicant: Sang Hyun MIN ,  Tah Joon Park ,  Koon Shik Cho ,  Jae Hyung Lee

    Inventor： Sang Hyun MIN ,  Tah Joon Park ,  Koon Shik Cho ,  Jae Hyung Lee

    IPC: H04B7/00 ,  H04L27/00

    CPC classification number: H04L27/3872 ,  H04B1/005 ,  H04B1/707 ,  H04B1/7163 ,  H04B1/71635 ,  H04B1/71637 ,  H04B2201/70705

    Abstract: There is provided a dual mode WPAN transceiver including a dual mode WPAN transmitter and a dual mode WPAN receiver. In the dual mode WPAN transceiver, the dual mode WPAN transmitter includes a low-speed spreading transmission block spreading low bit-rate data corresponding to a low data rate in low data rate mode, and a high-speed encoding transmission block encoding high bit-rate data corresponding to a high data rate in high data rate mode, and the dual mode WPAN receiver includes an A/D block converting analog I and Q signals into digital I and Q signals, a differential block obtaining a phase difference between the digital I and Q signals from the A/D unit and complex signals adjacent thereto to offset phase errors of the digital I and Q signals, a low-speed despreading reception unit despreading the digital I and Q signals differentiated by the differential block to detect low bit-rate data in low data rate mode, and a high-speed decoding reception unit decoding the digital I and Q signals differentiated by the differential block to detect high bit-rate data.

    Abstract translation: 提供了一种双模WPAN收发器，包括双模WPAN发送器和双模WPAN接收器。 在双模WPAN收发器中，双模WPAN发送器包括一个低速扩展传输块，它以低数据速率模式扩展对应于低数据速率的低比特率数据，以及一个高位编码传输块， 速率数据对应于高数据速率模式下的高数据速率，双模WPAN接收机包括将模拟I和Q信号转换成数字I和Q信号的A / D块，差分块获得数字I 和来自A / D单元的Q信号和与其相邻的复信号以消除数字I和Q信号的相位误差;低速解扩接收单元解扩由差分块区分的数字I和Q信号，以检测低位 - 低数据速率模式的速率数据，以及对由差分块区分的数字I和Q信号进行解码以检测高比特率数据的高速解码接收单元。

    Reverse link correlation filter in wireless communication systems
    129.
    发明申请
    Reverse link correlation filter in wireless communication systems 失效
    无线通信系统中的反向链路相关滤波器

    公开(公告)号：US20080075150A1

    公开(公告)日：2008-03-27

    申请号：US11901571

    申请日：2007-09-17

    Applicant: Antoine Rouphael ,  John Hoffmann ,  George Nelson ,  Samir Patel ,  James Proctor ,  Daniel Riley

    Inventor： Antoine Rouphael ,  John Hoffmann ,  George Nelson ,  Samir Patel ,  James Proctor ,  Daniel Riley

    IPC: H04B1/69

    CPC classification number: H04B1/707 ,  H04B1/7105 ,  H04B1/712 ,  H04B2201/70703 ,  H04B2201/70705 ,  H04B2201/7071

    Abstract: A single, common correlation filter (CF) core is provided in a receiver for recovery of data from received code division multiple access (CDMA) signals. Signals are received over CDMA channels with different data rates, where the received signals include user information such as pilot and data symbols that have been spread according to different despreading rates including tier 1, tier 2 and tier 3 rates, where tier 1 is the smallest despreading rate. The received signal is correlated at the smallest despreading rate in the correlation filter (CF) by time multiplexing delayed versions of the pseudorandom noise (PN) code. The correlated information is then demultiplexed and pilot-aided QPSK demodulated. The demodulated information is summed at the proper integer multiple of the tier 1 rate to achieve tier 2 and tier 3 despreading rates. According to an embodiment, the three strongest multipaths components in terms of the received power are selected in a window or time period for optimal information recovery.

    Abstract translation: 在接收机中提供单个公共相关滤波器（CF）核，用于从接收的码分多址（CDMA）信号中恢复数据。 在具有不同数据速率的CDMA信道上接收信号，其中所接收的信号包括诸如导频和数据符号之类的用户信息，所述导频和数据符号根据不同的解扩速率（包括层1，层2和层3速率）进行扩展，其中层1是最小的 解散率。 接收到的信号通过伪随机噪声（PN）码的延迟版本的时间复用以相关滤波器（CF）中的最小解扩频率相关。 然后将相关信息解复用并导频辅助QPSK解调。 解调信息以1级速率的适当整数倍相加，以实现2级和3级解扩速率。 根据实施例，在用于最佳信息恢复的窗口或时间段中选择关于接收功率的三个最强多径分量。

    Base transceiver station
    130.
    发明申请
    Base transceiver station 失效
    基站收发台

    公开(公告)号：US20060221908A1

    公开(公告)日：2006-10-05

    申请号：US11391176

    申请日：2006-03-29

    Applicant: Koya Hoshina

    Inventor： Koya Hoshina

    IPC: H04Q7/00 ,  H04B7/216

    CPC classification number: H04W88/08 ,  H04B1/707 ,  H04B2201/70705 ,  H04B2201/7071

    Abstract: On the basis of a spreading factor obtained by despreading a control channel of received data by a control channel despreading unit, a spreading factor determination unit determines a transmission rate of the received data. User data subjected to despreading processing at a user data despreading unit is demodulated by a demodulator and temporarily stored in a demodulated data memory. The user data read from the demodulated data memory is decoded by a decoder, whereas the result of decoding by the decoder is supplied to a delay measurement unit, where a delay time relative to the above processing, of the user data is detected. A channel resource management unit manages the number of available resources at all times or in a constant cycle on the basis of transmission rates of respective radio channels detected by the spreading factor determination unit and delay processing times of the respective radio channels detected by the delay measurement unit.

    Abstract translation: 扩展因子确定单元基于通过控制信道解扩单元解扩接收数据的控制信道而获得的扩频因子，确定接收数据的传输速率。 用户数据解扩单元进行解扩处理的用户数据由解调器解调，并临时存储在解调数据存储器中。 从解调数据存储器读取的用户数据由解码器解码，而由解码器解码的结果被提供给延迟测量单元，其中检测到用户数据相对于上述处理的延迟时间。 信道资源管理单元根据由扩展因子确定单元检测到的各个无线电信道的传输速率和由延迟测量检测到的各个无线电信道的延迟处理时间，在所有时间或恒定周期内管理可用资源的数量 单元。

Patent Agency Ranking