公开(公告)号：US06895038B2

公开(公告)日：2005-05-17

申请号：US09770819

申请日：2001-01-26

申请人： Joichi Saito ,  Hideki Shimizu ,  Naoki Tsubaki ,  Yuuji Ishida ,  Toshinori Suzuki

发明人： Joichi Saito ,  Hideki Shimizu ,  Naoki Tsubaki ,  Yuuji Ishida ,  Toshinori Suzuki

IPC分类号： H04J13/00 ,  H04B1/7093 ,  H04B1/7107 ,  H04W76/02 ,  H04W88/08 ,  H04B15/00 ,  H04K1/00 ,  H04L27/30

CPC分类号： H04B1/7107

摘要： A low-cost communication system utilizing a code division multiple access, which controls scale-up of an apparatus due to the provision of an interference suppressing function in a base transceiver station, prevents the reduction of channel utilization efficiency, and enables a high-quality communication. Conventionally, a signal obtained through an interference cancellation stage process has been processed at subsequent cascade-connected stages. The interference cancellation stage process has been carried out by cascade-connecting several circuits performing the same process in a multi-stage interference-canceling device. However, in the present invention, by performing a demodulation process for generating replica signals, feeding back the replica signals to a correlation circuit for another demodulation process, and repeating the same signal process, the interference cancellation stage process is carried out. Such a configuration enables reduction of hardware.

摘要翻译： 利用码分多址的低成本通信系统，其控制由于在基站收发台中提供干扰抑制功能而使设备的放大，防止信道利用效率的降低，并且能够实现高质量 通讯。 通常，通过干扰消除级处理获得的信号已经在随后的级联连接级处理。 干扰消除阶段处理是通过在多级干扰消除装置中级联连接执行相同处理的多个电路来执行的。 然而，在本发明中，通过执行用于产生复制信号的解调处理，将复制信号反馈到用于另一解调处理的相关电路，并重复相同的信号处理，执行干扰消除级处理。 这样的配置能够减少硬件。

公开(公告)号：US06834197B2

公开(公告)日：2004-12-21

申请号：US09725840

申请日：2000-11-30

申请人： Naruhito Nakahara ,  Yuuji Ishida ,  Naoki Tsubaki ,  Joichi Saito ,  Toshinori Suzuki ,  Yoshio Takeuchi ,  Sumaru Niida

发明人： Naruhito Nakahara ,  Yuuji Ishida ,  Naoki Tsubaki ,  Joichi Saito ,  Toshinori Suzuki ,  Yoshio Takeuchi ,  Sumaru Niida

IPC分类号： H04Q720

CPC分类号： H04W52/24 ,  H04W52/08 ,  H04W52/12

摘要： A base station apparatus, a mobile radio system, and a transmission power control method that can perform transmission power control having the high interference suppressing effect with a smaller processing delay are provided. The base station apparatus comprises: a measurement part for measuring SIRs of a received signal subjected to interference suppression by an interference suppressing receiving circuit in a former stage in an interference suppressing receiving part of the radio base station apparatus, and of a received signal subjected to interference suppression by an interference suppressing receiving circuit in a later stage; a calculation part for calculating a correction SIR based on the obtained SIRs, and for estimating a transmission power control SIR from a current first stage SIR and a past correction SIR; and a signal generator for generating a transmission power control signal by comparing the transmission power control SIR and a target SIR. Control of transmission power of a mobile station is performed by transmitting this transmission power control signal to the mobile station.

摘要翻译： 提供了能够以较小的处理延迟进行具有高干扰抑制效果的发送功率控制的基站装置，移动无线电系统以及发送功率控制方法。 基站装置包括：测量部，用于测量由无线基站装置的干扰抑制接收部分中的前级的干扰抑制接收电路进行了干扰抑制的接收信号的SIR，以及接收信号 在后期的干扰抑制接收电路的干扰抑制; 计算部分，用于基于所获得的SIR来计算校正SIR，并且用于从当前第一阶段SIR和过去校正SIR估计发送功率控制SIR; 以及信号发生器，用于通过比较发送功率控制SIR和目标SIR来产生发送功率控制信号。 通过向移动台发送该发送功率控制信号来执行移动台的发送功率的控制。

公开(公告)号：US06925592B2

公开(公告)日：2005-08-02

申请号：US09934601

申请日：2001-08-23

申请人： Takao Inoue ,  Naoki Tsubaki ,  Masayasu Suzuki ,  Arata Nakagoshi

发明人： Takao Inoue ,  Naoki Tsubaki ,  Masayasu Suzuki ,  Arata Nakagoshi

IPC分类号： H03M13/27 ,  H03M13/29 ,  H03M13/03

CPC分类号： H03M13/6502 ,  H03M13/2764 ,  H03M13/2771 ,  H03M13/2957

摘要： In an interleaver for use in a turbo decoder, a deinterleaver, or an interleaver for use in a turbo encoder, an offset is set based on previously determined thresholds in accordance with symbol numbers generated by a counter. A symbol numbers inputted immediately before generating an address is corrected with the set offset, and the corrected symbol number is converted to generate an interleave read address.

摘要翻译： 在用于turbo解码器，解交织器或用于turbo编码器的交织器的交织器中，根据由计数器产生的符号数，基于先前确定的阈值来设置偏移。 在产生地址之前立即输入的符号号用设定的偏移量进行校正，并且将经校正的符号号转换为产生交错读取地址。

公开(公告)号：US06615030B1

公开(公告)日：2003-09-02

申请号：US09656139

申请日：2000-09-06

申请人： Joichi Saito ,  Naruhito Nakahara ,  Yuuji Ishida ,  Naoki Tsubaki ,  Toshinori Suzuki ,  Yoshio Takeuchi ,  Sumaru Niida

发明人： Joichi Saito ,  Naruhito Nakahara ,  Yuuji Ishida ,  Naoki Tsubaki ,  Toshinori Suzuki ,  Yoshio Takeuchi ,  Sumaru Niida

IPC分类号： H04B110

CPC分类号： H04B1/71075

摘要： In order to prevent decrease of channel efficiency and to effectuate high quality communication while moderating increase of apparatus scale of an interference canceler part and cutting down costs, in a mobile communication and radio base station apparatus according to the present invention, an interference cancel processing part within the base station apparatus is provided with reverse spread processing/respread processing parts for performing reverse spread processing and respread processing on received signals, synthesizing processing parts for synthesizing signals that have been subjected to the respread processing, and subtraction processing parts for subtracting the synthesized signal from received signal, in multiple stages. The interference cancel processing part processes received signals of users #1-#k. As a demodulation processing part, there is provided n demodulation processing parts that perform demodulation processing for received signals of users #1-#n, the number of those users being larger than the number of the users that can be processed in the interference cancel processing part. Those demodulation processing parts perform demodulation processing with respect to signals that have been subjected to the interference cancel processing.

摘要翻译： 在本发明的移动通信和无线基站装置中，为了防止信道效率的降低和高质量的通信的同时抑制干扰消除部的装置规模的增加和降低成本，在本发明的移动通信和无线基站装置中， 在基站装置内设置有用于对接收信号进行反向扩展处理和再次处理的反向扩展处理/再处理部分，合成用于合成已经进行了再次处理的信号的处理部分，以及用于减去合成的 来自接收信号的信号，多级。 干扰消除处理部分处理用户＃1-＃k的接收信号。 作为解调处理部分，提供了对用户＃1-＃n的接收信号执行解调处理的n个解调处理部分，这些用户的数量大于在干扰消除处理中可以处理的用户的数量 部分。 那些解调处理部分对已经经过干扰消除处理的信号执行解调处理。