公开(公告)号：US06157628A

公开(公告)日：2000-12-05

申请号：US793642

申请日：1997-11-14

申请人： Shinji Uebayashi ,  Hui Zhao

发明人： Shinji Uebayashi ,  Hui Zhao

IPC分类号： H04B7/26 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04W4/00 ,  H04W28/04 ,  H04W72/04 ,  H04W74/04 ,  H04B7/216

CPC分类号： H04L1/1887 ,  H04L1/1692 ,  H04L1/1809 ,  H04B1/707 ,  H04L2001/0096

摘要： In CDMA mobile communication of the packet switching mode which is one-way, the packet is transmitted to divide to a frame unit. In this time, the first, the second and the third transmission timing which are obtained to divide to three pieces the predetermined frame are set up for increasing the transmission efficiency by realizing the retransmission of the frame unit, as the transmission timing of a backward control signal in a backward channel,. Base station 100 transmits a forward signal (a forward control signal and an user data signal) by using code A (a forward channel) at any frame. When the forward signal is received at this frame by mobile station 70, mobile station 70 transmits a receiving acknowledgment signal (a backward control signal) of the forward signal by using code A' at the first transmission timing of the next frame. Conversely, when the forward signal is not received correctly, mobile station 70 transmits a retransmission request signal (the backward control signal) of the forward signal by using code A' at the first transmission timing of the next frame. The similar operation carries out in mobile stations 80 and 90. However, in this case, the transmission timing of the backward channel is the second or the third timing.

摘要翻译： PCT No.PCT / JP96 / 03059 Sec。 371日期：1997年11月14日 102（e）1997年11月14日PCT PCT 1996年10月22日PCT公布。 公开号WO97 / 16044 日期1997年5月1日在单向分组交换模式的CDMA移动通信中，发送分组到帧单元。 此时，为了通过实现帧单元的重发来提高传输效率，为了提高发送效率，设定为了分配三个预定帧而获得的第一，第二和第三发送定时作为后向控制的发送定时 信号在反向信道中。 基站100通过使用任何帧的代码A（正向信道）来发送前向信号（前向控制信号和用户数据信号）。 当移动站70在该帧接收到正向信号时，移动站70在下一帧的第一发送定时通过使用码A'来发送正向信号的接收确认信号（后向控制信号）。 相反，当前向信号未正确接收时，移动台70通过在下一帧的第一发送定时处的代码A'发送正向信号的重发请求信号（后向控制信号）。 类似的操作在移动站80和90中执行。然而，在这种情况下，反向信道的发送定时是第二或第三定时。

公开(公告)号：US6137788A

公开(公告)日：2000-10-24

申请号：US793051

申请日：1997-02-12

申请人： Mamoru Sawahashi ,  Hidehiro Andou ,  Yoshinori Miki ,  Kenichi Higuchi

发明人： Mamoru Sawahashi ,  Hidehiro Andou ,  Yoshinori Miki ,  Kenichi Higuchi

IPC分类号： H04B1/707 ,  H04B7/005 ,  H04J13/00

CPC分类号： H04B1/71075 ,  H04B2001/71077 ,  H04W52/12

摘要： A CDMA demodulating apparatus with an improved interference canceling effect when there are a large number of communicators. A reception signal having a frame configuration in which a pilot signal of a known pattern is inserted between information signals is received from a plurality of communicators. Transmission data of each communicator is demodulated, an interference canceler for estimating is provided in a plurality of stages, in each channel of each stage, a variation of transmission path is estimated in each path to achieve data demodulation and estimation of interference replica. The later the stage, the more error of interference signal replica can be reduced, thereby improving the interference canceling effect. An even better effect can be obtained when interference canceling is performed after detecting a reception level of each channel by summation of reception power of each path of each channel, and channel ranking is determined in the order of higher reception level.

摘要翻译： PCT No.PCT / JP96 / 01582 Sec。 371日期1997年2月12日 102（e）日期1997年2月12日PCT提交1996年6月12日PCT公布。 WO96 / 42146 PCT公开号 日期：1996年12月27日当存在大量通信器时具有改善的干扰消除效应的CDMA解调装置。 从多个通信器接收具有其中在信息信号之间插入已知模式的导频信号的帧配置的接收信号。 解调每个通信器的传输数据，在每个级的每个信道中，在多个级中提供用于估计的干扰消除器，在每个路径中估计传输路径的变化，以实现干扰复制的数据解调和估计。 后期，可以减少干扰信号副本的误差，提高干扰消除效果。 通过对每个信道的每个路径的接收功率进行相加检测每个信道的接收电平之后执行干扰消除时，可以获得更好的效果，并且以更高的接收电平的顺序确定信道等级。

公开(公告)号：US06122765A

公开(公告)日：2000-09-19

申请号：US827174

申请日：1997-03-27

申请人： Hirohumi Nakayama ,  Koichi Sawai

发明人： Hirohumi Nakayama ,  Koichi Sawai

IPC分类号： H04B7/26 ,  H04B14/04 ,  H04L1/00 ,  H04M11/06 ,  H04L25/06

CPC分类号： H04L1/0061 ,  H04M11/068

摘要： Multiplex transmission apparatus 10 on the transmitting side multiplexes received signals from non-voice signal input output apparatus 14 and voice signal input output apparatus 16, and also transmits the multiplexed signal from communications network 30 by digital portable telephone 12 on the transmitting side. The digital portable telephone transmits a signal per 20 msec, so that multiplex transmission apparatus 10 alternately transmits the voice signal and the non-voice signal at an interval of 20 msec, for example. Multiplex transmission apparatus 20 sorts out the voice signal and the non-voice signal from the supplied signal by checking the error detecting code of the supplied signal. Multiplex transmission apparatus 20 can judge the type of the signal according to the type of the error detecting code, because a different error detecting code is added to each signal.

摘要翻译： 发送侧的多路复用发送装置10将来自非语音信号输入输出装置14和语音信号输入输出装置16的接收信号进行多路复用，并且还通过发送侧的数字便携式电话12发送来自通信网络30的复用信号。 数字便携式电话每20ms发送一个信号，所以多路传输装置10例如以20毫秒的间隔交替地发送语音信号和非话音信号。 复用发送装置20通过检查所提供的信号的检错码，从提供的信号中分出语音信号和非话音信号。 由于向每个信号添加了不同的检错码，所以多路传输装置20可以根据错误检测码的类型来判断信号的类型。

公开(公告)号：US6108541A

公开(公告)日：2000-08-22

申请号：US873372

申请日：1997-06-12

申请人： Hidetoshi Yazaki ,  Kouji Chiba ,  Norihito Tokuhiro ,  Shigehide Sawayanagi ,  Kazufumi Yunoki

发明人： Hidetoshi Yazaki ,  Kouji Chiba ,  Norihito Tokuhiro ,  Shigehide Sawayanagi ,  Kazufumi Yunoki

IPC分类号： H04W48/16 ,  H04W48/20 ,  H04W52/02 ,  H04Q7/20 ,  H04Q7/36

CPC分类号： H04W48/16 ,  H04W48/20 ,  H04W52/0232 ,  H04W52/0254

摘要： A control channel is searched for call waiting in a mobile station where the power supply for a receiving circuit is turned off during a break time of receiving level measurements, wherein in a first control channel selection mode, all the control channels are divided into a plurality of groups, the receiving levels of the control channels are measured group by group intermittently and sequentially. The intermittent measurement of these groups are repeated until a control channel having a receiving level equal to or greater than a first predetermined value is detected. When a receiving level equal to or greater than the first predetermined value is detected, the receiving levels of all the control channels are measured in a second control channel selection mode.

摘要翻译： 在接收电平测量的断开时间期间，在接收电路的电源被关闭的移动台中搜索控制信道，其中在第一控制信道选择模式中，所有控制信道被分成多个 的组间，间歇地依次测量控制通道的接收电平。 重复这些组的间歇测量，直到检测到具有等于或大于第一预定值的接收电平的控制信道。 当检测到等于或大于第一预定值的接收电平时，在第二控制信道选择模式中测量所有控制信道的接收电平。

公开(公告)号：US6108384A

公开(公告)日：2000-08-22

申请号：US11820

申请日：1998-02-23

申请人： Yukihiko Okumura ,  Fumiyuki Adachi

发明人： Yukihiko Okumura ,  Fumiyuki Adachi

IPC分类号： H03M13/00 ,  H04L1/00 ,  H04L12/70 ,  H04L25/02 ,  H04W28/04 ,  H04W72/04 ,  H04L23/02 ,  G06F11/00 ,  H03D1/00

CPC分类号： H03M13/00 ,  H03M13/3738 ,  H03M13/41 ,  H04L1/0002 ,  H04L1/0006 ,  H04L1/0046 ,  H04L1/0054 ,  H04L1/0061 ,  H04L1/0065 ,  H04L1/0071 ,  H04L1/0083 ,  H03M13/09 ,  H04L1/0025

摘要： A data transmission method, data transmission system, and a transmitter and receiver are provided which can implement higher quality variable rate transmission by making a more positive rate decision. In a variable rate transmission method transmitting fixed time length frames, each including variable length transmitted data, a transmitting side transmits user data plus an error detecting code, and a receiving side, assuming the entire transmittable final bit positions of the frame data, carries out Viterbi decoding of the frame data to the final bit positions. If, at an assumed final bit position, the difference between the maximum value of likelihoods of a plurality of decoded data sequence candidates and the likelihood of the decoded data sequence obtained by terminating the decoding process is within a predetermined range, and a calculated error detecting code agrees with a received error detecting code, a decision is made that the assumed final bit position is the final bit position of the transmitted frame data, and the transmitted data is recovered.

摘要翻译： PCT No.PCT / JP97 / 02145 Sec。 371日期1998年2月23日 102（e）日期1998年2月23日PCT提交1997年6月23日PCT公布。 公开号WO97 / 50219 日期1997年12月31日提供了一种数据传输方法，数据传输系统和发射机和接收机，可以通过做出更积极的速率决策来实现更高质量的可变速率传输。 在发送固定时间长度帧的可变速率传输方法中，每个包括可变长度发送数据，发送侧发送用户数据加上错误检测码，接收侧假定帧数据的整个可发送最终位位置执行 维特比将帧数据解码为最终位位置。 如果在假定的最终比特位置，多个解码数据序列候选的似然度的最大值与通​​过解码处理结束获得的解码数据序列的似然度之间的差在预定范围内，并且计算出的错误检测 代码与接收到的错误检测码一致，判定假定的最终比特位置是发送的帧数据的最终比特位置，并且恢复发送的数据。

公开(公告)号：US6097711A

公开(公告)日：2000-08-01

申请号：US865591

申请日：1997-05-29

申请人： Koichi Okawa ,  Koji Ohno ,  Mamoru Sawahashi ,  Shinji Uebayashi ,  Yukihiko Okumura

发明人： Koichi Okawa ,  Koji Ohno ,  Mamoru Sawahashi ,  Shinji Uebayashi ,  Yukihiko Okumura

IPC分类号： H04W88/00 ,  H04B1/707 ,  H04B7/24 ,  H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04B7/216 ,  H04B3/10 ,  H04J1/16

CPC分类号： H04J13/00 ,  H04B7/2637 ,  H04B2201/70701 ,  H04J13/0077

摘要： A DS-CDMA transmission method capable of improving the accuracy of channel estimation using pilot symbols by eliminating cross-correlation between pilot symbols inserted into code channels in CDMA multiplexing carrying out fast signal transmission. In each frame assembler, the pilot symbols, which are used for channel estimation for coherent detection, are inserted into coded information data on code channels at fixed intervals, and then the data is modulated by the modulator. The modulated data symbols in each code channel from the modulator are spread by the spreading modulator, the pilot symbols are spread using a spreading code, whereas the information symbols are spread using different spreading codes assigned to respective code channels. The spread signals of the code channels are summed up by the adder to be transmitted.

摘要翻译： 一种DS-CDMA传输方法，其能够通过消除在执行快速信号传输的CDMA复用中插入到码信道中的导频符号之间的互相关，来提高使用导频符号的信道估计的精度。 在每个帧汇编器中，用于相干检测的信道估计的导频符号以固定的间隔插入到代码信道的编码信息数据中，然后由调制器调制数据。 来自调制器的每个码信道中的调制数据符号由扩展调制器扩展，导频符号使用扩展码进行扩展，而信息符号使用分配给各个代码信道的不同扩频码进行扩展。 代码通道的扩展信号由加法器求和以发送。

公开(公告)号：US6061354A

公开(公告)日：2000-05-09

申请号：US894585

申请日：1997-08-22

申请人： Hiroki Morikawa ,  Yukichi Saito ,  Hiroshi Kawakami ,  Fumiaki Ishino ,  Akihisa Nakajima

发明人： Hiroki Morikawa ,  Yukichi Saito ,  Hiroshi Kawakami ,  Fumiaki Ishino ,  Akihisa Nakajima

IPC分类号： H04L12/70 ,  H04Q11/04 ,  H04L12/28

CPC分类号： H04Q11/0478 ,  H04L2012/5649 ,  H04L2012/5652 ,  H04L2012/5661 ,  H04L2012/5672 ,  H04L2012/5679 ,  H04L2012/5681

摘要： A concrete circuit configuration is proposed of a multiplex transmitter for loading a standard ATM cell with multiplexed micro-frames which are each shorter than the standard ATM cell. The input micro-frames are delivered to a distributor 504 in the input order through an interface 503. The distributor 504 distributes the input micro-frames using distributing information input. The distributing information accords with the service condition of each connection or micro-frame. An extracting circuit 506 selects buffers in accordance with predetermined buffer selection logic. A cell cancellation monitor circuit 508 relinquishes micro-frames exceeding cell tolerable time periods T2-1-T2-m. A multiplexing processor 507 transfers the cell or a idle cell to a sender 511 in accordance with the cell transfer timing of the sender 511.

摘要翻译： PCT No.PCT / JP96 / 03764 Sec。 371日期1997年8月22日 102（e）日期1997年8月22日PCT 1996年12月24日PCT公布。 第WO97 / 23975号公报 日期1997年7月3日提出了一种多路复用发送器的具体电路配置，用于加载具有比标准ATM信元短的多路复用微帧的标准ATM信元。 输入微帧通过接口503以输入顺序传送到分配器504.分配器504使用分配信息输入来分配输入微帧。 分发信息符合每个连接或微框架的服务条件。 提取电路506根据预定的缓冲器选择逻辑选择缓冲器。 单元取消监视电路508放弃超过单元容许时间段T2-1-T2-m的微帧。 复用处理器507根据发送器511的小区传输定时将小区或空闲小区传送到发送方511。

公开(公告)号：US06021516A

公开(公告)日：2000-02-01

申请号：US786479

申请日：1997-01-21

申请人： Ichiro Okajima ,  Akihiro Maebara ,  Katsumi Kobayashi ,  Koji Sasada ,  Hiroyuki Hattori

发明人： Ichiro Okajima ,  Akihiro Maebara ,  Katsumi Kobayashi ,  Koji Sasada ,  Hiroyuki Hattori

IPC分类号： H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  G08C25/02

CPC分类号： H04L1/1621 ,  H04L1/0007 ,  H04L1/1809

摘要： In a communication system having a transmission station which transmits the data signal and a receiving station which receives the data signal, the transmission station consists of an adding means for adding an error detecting code showing a position of a transmission error, which occurs on said data signal, in said data signal to said data signal and a retransmission means for retransmission of a part in said data signal when said receiving station requests the retransmission of the part in said data signal. The receiving station consists of a judgment means for judging a position of the transmission error in said data signal on the basis of the error detecting code which is added by the adding means and a request means for requesting the retransmission of the part containing the transmission error in the data signal on the basis of the position of the transmission error.

摘要翻译： 在具有发送数据信号的发送站和接收数据信号的接收站的通信系统中，发送站由加法装置构成，该附加装置用于将表示在所述数据上发生的发送错误的位置的错误检测码相加 在所述数据信号中向所述数据信号发送信号;以及重传装置，用于当所述接收站请求所述数据信号中的部分的重传时，重传所述数据信号中的一部分。 接收站包括一个判断装置，用于根据由加法装置相加的检错码和用于请求重发包含发送错误的部分的请求装置判断所述数据信号中的传输错误的位置 在数据信号的基础上根据传输误差的位置。

公开(公告)号：US5953326A

公开(公告)日：1999-09-14

申请号：US812693

申请日：1997-03-06

申请人： Takehiro Nakamura ,  Kouji Ohno ,  Etsuhiro Nakano ,  Seizo Onoe

发明人： Takehiro Nakamura ,  Kouji Ohno ,  Etsuhiro Nakano ,  Seizo Onoe

IPC分类号： H04W48/12 ,  H04W48/20 ,  H04J13/02 ,  H04Q7/36

CPC分类号： H04W48/20 ,  H04W48/12

摘要： A cell selection scheme in a CDMA mobile communication system which is capable of shortening the cell selection processing time while constructing a mobile communication system with a practically feasible base station configuration. In a CDMA mobile communication system, first type base stations which share a common reference timing are transmitting pilot channels spread by using an identical pilot channel spread code at mutually different spread code phases with respect to the common reference timing where these mutually different spread code phases are assigned to different first type base stations, and second type base stations which do not share the common reference timing are transmitting pilot channels spread by using mutually different pilot channel spread codes at arbitrary spread code phases where these mutually different pilot channel spread codes being assigned to different second type base stations. A mobile station receives these pilot channels and judges a located cell of the mobile station according to receiving levels, pilot channel spread codes and spread code phases of received pilot channels.

摘要翻译： CDMA移动通信系统中的小区选择方案，其能够在构建具有实际可行的基站配置的移动通信系统的同时缩短小区选择处理时间。 在CDMA移动通信系统中，共享公共基准定时的第一类型基站相对于公共基准定时发送通过使用相同的导频信道扩展码扩展的导频信道，该相同的导频信道扩频码相互不同的扩频码相位 分配给不同的第一类型基站，并且不共享公共基准定时的第二类型基站通过使用相互不同的导频信道扩展码扩展的导频信道，该导频信道扩展码以任意扩频码相位分配，其中分配了相互不同的导频信道扩展码 到不同的第二类型基站。 移动台接收这些导频信道，根据接收到的导频信道的接收电平，导频信道扩频码和扩频码相位来判断移动台的定位小区。

公开(公告)号：US5933782A

公开(公告)日：1999-08-03

申请号：US903025

申请日：1997-07-29

申请人： Etsuhiro Nakano ,  Takehiro Nakamura ,  Koji Ohno ,  Takaaki Sato

发明人： Etsuhiro Nakano ,  Takehiro Nakamura ,  Koji Ohno ,  Takaaki Sato

IPC分类号： H04B7/005 ,  H04B1/00

CPC分类号： H04W52/40 ,  H04W52/367

摘要： A downlink transmission power control scheme for a mobile communication system using the site diversity, which carries out a primary downlink transmission power control using a primary control signal which is transmitted from the mobile station and terminated at each base station, and an additional downlink transmission power control using additional control signals which are transmitted from the base station control station to the base stations. The additional downlink transmission power control may also use a secondary control signal which is transmitted from the mobile station and terminated at the base station control station. The primary downlink transmission power control can be carried out during a non-site diversity period while the additional downlink transmission power control is carried out during the site diversity period, or the primary downlink transmission power control and the additional downlink transmission power control can be both carried out during the site diversity period.

摘要翻译： 一种使用现场分集的移动通信系统的下行链路发送功率控制方案，其使用从移动台发送并终止于各基站的主控制信号进行主下行链路发送功率控制，以及附加下行链路发送功率 使用从基站控制站向基站发送的附加控制信号进行控制。 附加的下行链路发送功率控制也可以使用从移动台发送并终止于基站控制站的辅助控制信号。 主要下行链路发送功率控制可以在非站点分集周期期间执行，而在站点分集周期期间执行附加下行链路发送功率控制，或者主下行链路发送功率控制和附加下行链路发送功率控制可以两者 在现场多样化期间进行。