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：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。

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：US07136427B2

公开(公告)日：2006-11-14

申请号：US10347292

申请日：2003-01-21

申请人： Sumaru Niida ,  Toshinori Suzuki ,  Yoshio Takeuchi

发明人： Sumaru Niida ,  Toshinori Suzuki ,  Yoshio Takeuchi

IPC分类号： H04L27/04 ,  H04L27/12 ,  H04L27/20

CPC分类号： H04L1/0643 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0625

摘要： A method of transmitting adaptive modulation signals using space-time block code matrix from a plurality of antennas, the method comprising the steps of: changing adaptively the number of transmission repeat times of the matrix according to a propagation condition, transforming modulation signals at each transmission repeat timing from each antenna by using the matrix, and sending the transformed signals at each transmission repeat timing from each antenna.

公开(公告)号：US6118806A

公开(公告)日：2000-09-12

申请号：US320680

申请日：1999-05-27

申请人： Sumaru Niida ,  Toshinori Suzuki

发明人： Sumaru Niida ,  Toshinori Suzuki

IPC分类号： H04J13/00 ,  H04B1/7115 ,  H04B7/02 ,  H04B7/08 ,  H04L1/02 ,  H04L1/06 ,  H04B15/00 ,  H04K1/00 ,  H04L27/30

CPC分类号： H04B1/712 ,  H04B7/0865 ,  H04L1/06

摘要： An apparatus for combining signals includes RAKE receivers 10, 20, noise-power measuring apparatuses 30, 40, and a branch combiner 50. The RAKE receivers 10, 20 are the same in number as the antenna branches, and each RAKE receiver combines received signals by using a weight based on an amplitude of each received signal. Each of the noise-power measuring apparatus 30, 40 measures a sum of an interference power and a background-noise power in an output signal from each RAKE receiver. The branch combiner 50 multiplies the output signal from each RAKE receiver by an inverse of the sum measured by the noise-power measuring apparatus, and then adds up the value obtained by each multiplication.

摘要翻译： 用于组合信号的装置包括RAKE接收机10,20，噪声功率测量装置30,40和分支组合器50.RAW接收机10,20的数量与天线分支相同，并且每个RAKE接收机组合接收信号 通过使用基于每个接收信号的振幅的权重。 每个噪声功率测量装置30,40测量来自每个RAKE接收机的输出信号中的干扰功率和背景噪声功率之和。 分支组合器50将来自每个RAKE接收机的输出信号乘以由噪声功率测量装置测量的和的倒数，然后将通过每次相乘得到的值相加。

公开(公告)号：US06763059B2

公开(公告)日：2004-07-13

申请号：US09730762

申请日：2000-12-07

申请人： Toshinori Suzuki ,  Yoshio Takeuchi

发明人： Toshinori Suzuki ,  Yoshio Takeuchi

IPC分类号： H04B1707

CPC分类号： H04B1/71075

摘要： This invention provides a spread spectrum signal demodulator in which a noise component included in respective demodulation symbols is reduced and an effect of interference removal is further improved. Symbol decorrelating means detect correlations between spread codes allocated to spread spectrum signals to be removed and a receiving signal. A symbol deciding means 121 synthesizes one or the plurality of one symbol correlation values b1 to bk in common phase, namely, diversity-synthesizes them so as to decide a symbol. As the symbol decision, hard decision or soft decision can be used. Correlation modification means input the one symbol correlation values b1 to bk output from the symbol decorrelating means and the symbol decided result output from the symbol deciding means 121 thereinto, and modify the symbol correlation values b1 to bk. The modified symbol correlation values d1 to dk are transmitted into interference replicating means so as to be spectrum-spread by corresponding spread codes.

摘要翻译： 本发明提供一种扩频信号解调器，其中包括在各个解调符号中的噪声分量被减少，并且进一步提高了干扰去除的效果。 符号去相关装置检测分配给要去除的扩频信号的扩展码与接收信号之间的相关性。 符号决定单元121将共同相位中的一个或多个符号相关值b1〜bk进行合成，即对它们进行分集合成，从而决定符号。 作为符号决定，可以使用硬判决或软判决。 相关修正意味着输入从符号解相关装置输出的一个符号相关值b1至bk和从符号确定装置121输出的符号确定结果，并修改符号相关值b1至bk。 经修改的符号相关值d1至dk被发送到干扰复制装置，以便通过相应的扩展码进行频谱扩展。

公开(公告)号：US06526261B1

公开(公告)日：2003-02-25

申请号：US09516784

申请日：2000-03-01

申请人： Yoshio Takeuchi ,  Toshinori Suzuki

发明人： Yoshio Takeuchi ,  Toshinori Suzuki

IPC分类号： H04Q700

CPC分类号： H04W52/20 ,  H04W52/12 ,  H04W52/24

摘要： A control method of transmitting power in a cellular system includes a step of measuring a signal to interference power ratio of a received signal at said receiving side, a step of detecting frame errors of the received signal at the receiving side, a step of counting the number of the detected frame errors n(k) (k and n(k) are positive integers and 1≦k≦K) for every M(k) (M(k) is a positive integer) frames, or for last N(k) (N(k) is a positive integer) frames just before the frame error is detected, a step of adjusting a value of a target SIR depending on one or set of the counted numbers of frame error n(1) to n(K), a step of comparing the measured SIR with the adjusted target SIR to provide a compared result, and a step of controlling at the transmitting side the transmitting power depending on the compared result.

摘要翻译： 在蜂窝系统中发送功率的控制方法包括测量所述接收侧的接收信号的信号与干扰功率比的步骤，检测接收侧的接收信号的帧错误的步骤， 对于每个M（k）（M（k）是正整数）帧，检测到的帧错误n（k）（k和n（k））是正整数，并且1 <= k <= K） 在检测到帧错误之前的N（k）（N（k）是正整数）帧;根据帧错误n（1）的计数数目的一个或一组来调整目标SIR的值的步骤 n（K），将测量的SIR与调整后的目标SIR进行比较以提供比较结果的步骤，以及根据比较结果在发送侧控制发送功率的步骤。

公开(公告)号：US6088383A

公开(公告)日：2000-07-11

申请号：US952342

申请日：1997-10-15

申请人： Toshinori Suzuki ,  Yoshio Takeuchi

发明人： Toshinori Suzuki ,  Yoshio Takeuchi

IPC分类号： H04B1/707 ,  H04B1/7107 ,  H04B15/00

CPC分类号： H04B1/71075

摘要： A spread spectrum signal demodulator receives a received signal including a plurality of spread spectrum signals, and comprises at least one signal strength suppressing means, which reduces a correlation signal outputted from a first correlation detecting means or replica signals until the correlation signal has been traveled through a replica signal generating means, a replica signal subtracting means and a second correlation detecting means. According to the invention, it is possible to improve interference cancellation capacity with a computational effort substantially comparable to that in a prior art replica signal cancellation system and improve interference cancellation performance with increasing number of interference cancellers irrespective of the magnitude of the correlation. With a sufficient number of interference cancellers provided, it is possible to obtain the same effect as obtainable with prior art decorrelation in a real time processing irrespective of the correlation magnitude.

摘要翻译： PCT No.PCT / JP97 / 00679 Sec。 371日期：1997年10月15日 102（e）日期1997年10月15日PCT提交1997年3月5日PCT公布。 公开号WO97 / 33401 日期1997年9月12日扩频信号解调器接收包括多个扩频信号的接收信号，并且包括至少一个信号强度抑制装置，其减少从第一相关检测装置输出的相关信号或复制信号，直到相关 已经通过复制信号产生装置，复制信号减法装置和第二相关检测装置行进信号。 根据本发明，可以通过与现有技术的复制信号消除系统基本上相当的计算能力来改进干扰消除能力，并且随着相关数量的大小而增加干扰消除器数量而改善干扰消除性能。 在提供足够数量的干扰消除器的情况下，可以获得与实际处理中的现有技术去相关可获得的效果相同的效果，而与相关幅度无关。

公开(公告)号：US5596641A

公开(公告)日：1997-01-21

申请号：US404290

申请日：1995-03-14

申请人： Masayoshi Ohashi ,  Yoshio Takeuchi ,  Toshinori Suzuki ,  Akira Yamaguchi ,  Seiichiro Sakai ,  Toshio Mizuno

发明人： Masayoshi Ohashi ,  Yoshio Takeuchi ,  Toshinori Suzuki ,  Akira Yamaguchi ,  Seiichiro Sakai ,  Toshio Mizuno

IPC分类号： H04L9/32 ,  H04W12/06 ,  H04L9/00

CPC分类号： H04W12/06 ,  H04L9/3271 ,  H04L2209/80

摘要： In the preliminary authentication stage, the mobile station (35) is authenticated by sending from the home network (30) to the roamed network (31), a plurality of pairs of first random numbers (RNDa.sub.1, . . . , RNDa.sub.n) and calculation results (SRESa.sub.1, . . . , SRESa.sub.n) of the cipher function (f), which calculation is performed at the home network using the secret key (ki) and the first random numbers (RNDa.sub.1, . . . , RND.sub.an), by sending, from the roamed network to the mobile station, third random numbers formed by coupling second random numbers (RNDb.sub.1, . . . , RNDb.sub.m) produced at the roamed network with the first random numbers (RNDa.sub.1, . . . , RNDan), by sending, from the mobile station to the roamed network, calculation results (SRESa.sub.1, . . . , SRESa.sub.n, SRESb.sub.1, . . . , SRESb.sub.m)) of the cipher function (f), which calculation is performed at the mobile station using the secret key (ki) and the sent third random numbers, and by confirming, at the roamed network, coincidence of the calculation results (SRESa.sub.1, . . . , SRESa.sub.n) sent from the mobile station with the calculation results (SRESa.sub.1, . . . , SRESa.sub.n) sent from the home network. In the main authentication, the mobile station is authenticated by using a pair of the second random number (RNDb.sub.1, . . . , RNDb.sub.m) and of the calculation result (SRESb.sub.1, . . . , SRESb.sub.m) with respect to the second random number (RNDb.sub.1, . . . , RNDb.sub.m), sent from the mobile station.

摘要翻译： 在初步认证阶段，通过从家庭网络（30）向漫游网络（31）发送多对第一随机数（RNDa1，...，RNDan）和计算来对移动台（35）进行认证 使用密钥（ki）和第一随机数（RNDa1，...，RNDan）在家庭网络中执行计算的密码函数（f）的结果（SRESa1，...，SRESan），通过发送 从漫游网络到移动台，通过将在漫游网络产生的第二随机数（RNDb1，...，RNDbm）与第一随机数（RNDa1，...，RNDan）相耦合而形成的第三随机数，通过发送 ，从移动站到漫游网络，计算结果（SRESa1，...，SRESan，SRESb1，...，SRESbm）），该密码函数（f）在移动站使用密钥执行计算 （ki）和发送的第三个随机数，并通过在漫游网络上确认计算结果的一致性 lts（SRESa1，。 。 。 ，SRESan）从移动台发送来自家庭网络的计算结果（SRESa1，...，SRESan）。 在主认证中，通过使用一对第二随机数（RNDb1，...，RNDbm）和计算结果（SRESb1，...，SRESbm）对第二随机数（ RNDb1，...，RNDbm），从移动台发送。

公开(公告)号：US5467368A

公开(公告)日：1995-11-14

申请号：US333074

申请日：1994-11-01

申请人： Yoshio Takeuchi ,  Toshinori Suzuki

发明人： Yoshio Takeuchi ,  Toshinori Suzuki

IPC分类号： H04B1/707 ,  H04B1/7107 ,  H04W76/00 ,  H04W76/02 ,  H04J13/04

CPC分类号： H04B1/71075 ,  H04B1/709

摘要： A demodulator receiving as input signal a sum of a plurality of spread spectrum signals is disclosed. The demodulator comprises means for obtaining a correlation between a spreading code assigned to each of spread spectrum signals contained in the input signal and the input signal for each spread spectrum signal symbol and making the correlation thus obtained to be a 0-th detected correlation, a 1-st interference canceller stage for receiving as inputs the input signal and the 0-th detected correlation and outputting 1-st residual error signal, 1-st detected correlation and sum of the 0-th and 1-st detected correlations, and a plurality of interference canceller stages operable similarly to the 1-st interference canceller stage by receiving as input the output signal of the preceding interference canceller stage.

摘要翻译： 公开了作为输入信号接收多个扩频信号的和的解调器。 解调器包括用于获得分配给包含在输入信号中的每个扩频信号的扩展码与每个扩展频谱信号符号的输入信号之间的相关性的装置，并使所得到的相关性成为第0检测到的相关性， 用于接收输入信号和第0检测相关的第1干扰消除器级，并输出第1残差误差信号，第1检测相关和第0和第1检测相关的和， 多个干扰消除器级通过作为输入接收前一个干扰消除器级的输出信号而与第一干扰消除器级类似地操作。