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1. 发明授权

US5896374A Variable rate transmission method, transmitter and receiver using the same 失效
标题翻译：变速率传输方式，发射机和接收机使用相同
公开(公告)号：US5896374A
公开(公告)日：1999-04-20
申请号：US732413
申请日：1996-10-22
申请人： Yukihiko Okumura , Fumiyuki Adachi , Koji Ohno , Akihiro Higashi
发明人： Yukihiko Okumura , Fumiyuki Adachi , Koji Ohno , Akihiro Higashi
IPC分类号： H04B1/707 , H04B7/26 , H04J3/14 , H04J3/16 , H04J13/00 , H04L1/00 , H04L1/08 , H04L7/04 , H04B7/216 , H04J13/02
CPC分类号： H04L1/0046 , H04B1/707 , H04B7/2628 , H04J3/14 , H04J3/1682 , H04L1/0002 , H04L1/0007 , H04L1/0013 , H04L1/0038 , H04L1/0039 , H04L1/0061 , H04L1/0063 , H04L1/0071 , H04L1/0079 , H04L1/0086 , H04L1/08 , H04L7/048 , H04B2201/70703 , H04B2201/70705 , H04L1/0009 , H04L1/0025 , H04L1/0032 , H04L1/0059 , H04L2001/0098 , Y02B60/31
摘要： A variable rate transmission method that can vary the transmission rate of data. A transmitting side supplies a transmitted data sequence to an error detecting encoder 105 and a frame memory 103. The frame memory 103 stores data of a variable length to be transmitted in one frame. The error detecting encoder 105 calculates an error detecting code (such as CRC code) for each frame of the transmitted data. A multiplexer 104 adds the calculated error detecting code ahead of the transmitted data to place it at the initial position of the frame, and sequentially outputs the data sequence frame by frame. A receiving side calculates an error detecting code of the data in each transmitted frame in the same manner as the transmitting side, and compares the calculated error detecting code with the error detecting code at the initial position of the frame. The end bit of the frame data is decided as a position at which the two error detecting codes coincide. This makes it possible to transmit variable length data without informing the receiving side of the data length in each frame. This is equivalent that the transmission rate can be varied freely.
摘要翻译： PCT No.PCT / JP96 / 00419 Sec。 371日期1996年10月22日第 102（e）日期1996年10月22日PCT提交1996年2月23日PCT公布。公开号WO96 / 26582 日期1996年8月29日可变速率传输方法可以改变数据传输速率。发送侧将发送的数据序列提供给错误检测编码器105和帧存储器103.帧存储器103将要发送的可变长度的数据存储在一帧中。错误检测编码器105针对发送数据的每一帧计算错误检测码（例如CRC码）。复用器104将所发送的数据之前的计算出的错误检测码相加，将其置于帧的初始位置，并逐帧地依次输出数据序列。接收侧以与发送侧相同的方式计算每个发送帧中的数据的错误检测码，并将计算出的错误检测码与帧的初始位置处的错误检测码进行比较。帧数据的结束位被确定为两个错误检测码一致的位置。这使得可以在不向每个帧中的接收方通知数据长度的情况下发送可变长度数据。这相当于传输速率可以自由变化。

2. 发明授权

US6108384A Data transmittion method, data transmitting system and transmitter and receiver 失效
标题翻译：数据传输方式，数据传输系统和发射机和接收机
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。

3. 发明授权

US06724806B2 Variable rate transmission and reception methods, and variable rate transmission and reception devices 有权
标题翻译：可变速率发送和接收方法，以及可变速率发送和接收设备
公开(公告)号：US06724806B2
公开(公告)日：2004-04-20
申请号：US09230190
申请日：1999-01-15
申请人： Yukihiko Okumura , Fumiyuki Adachi
发明人： Yukihiko Okumura , Fumiyuki Adachi
IPC分类号： H04B1500
CPC分类号： H04W52/267 , H04B1/707 , H04J13/0048
摘要： A transmission method for implementing variable rate transmission. Part of the baseband processing of a transmitter based on a CDMA transmission scheme is described. A transmitted information sequence in the form of a digital signal is phase modulated by a phase modulator 105. An orthogonal code generator 101 selects, in response to rate information of the transmitted signal, the orthogonal code to be generated. The bit rate of the orthogonal code the orthogonal code generator 101 generates is double the maximum transmission rate. The modulated transmitted signal is multiplied by the orthogonal code corresponding to the rate information with a multiplier 103. The transmitted signal, which is multiplied by the orthogonal code corresponding to the rate information, is further multiplied by a spreading code sequence with a multiplier 104 to be spread into a CDMA signal, and is transmitted under power transmission control based on the rate information. A receiving side can detect the rate without information about the transmission rate.
摘要翻译：一种用于实现可变速率传输的传输方法。描述了基于CDMA传输方案的发射机的基带处理的一部分。数字信号形式的发送信息序列由相位调制器105进行相位调制。正交码发生器101根据发送信号的速率信息选择要产生的正交码。正交码发生器101产生的正交码的比特率是最大传输速率的两倍。经调制的发送信号乘以与乘法器103对应的速率信息的正交码。乘以与速率信息相对应的正交码的发送信号进一步乘以具有乘法器104的扩展码序列，扩展到CDMA信号，并且在基于速率信息的功率传输控制下进行传输。接收侧可以检测速率，而不需要有关传输速率的信息。

4. 发明授权

US6034952A Method and instrument for measuring receiving SIR and transmission power controller 失效
标题翻译：测量接收SIR和传输功率控制器的方法和仪器
公开(公告)号：US6034952A
公开(公告)日：2000-03-07
申请号：US983412
申请日：1997-12-12
申请人： Tomohiro Dohi , Syunsuke Seo , Yukihiko Okumura , Mamoru Sawahashi , Fumiyuki Adachi
发明人： Tomohiro Dohi , Syunsuke Seo , Yukihiko Okumura , Mamoru Sawahashi , Fumiyuki Adachi
IPC分类号： H04B7/005 , H04J13/00
CPC分类号： H04W52/241 , H04B17/336
摘要： An SIR measuring apparatus with a simple configuration capable of improving the accuracy of received SIR measurement in CDMA mobile radio equipment using pilot symbols. A received signal (20) is input to a synchronization detector (21) that regenerates the clock timing of symbols and frame timing equivalent to the repetition period of the pilot signal. An interpolating coherent detector (22) produces information symbols (23) obtained from the received signal (20) through absolute phase coherent detection. A decision signal power calculator (24) obtains desired wave power values. A quasi-interference power calculator (25) obtains differences between the power values of the information symbols and a fading envelope, and adopts the differences as the quasi-interference power. Integrators (26 and 27) integrate received desired wave power and quasi-interference wave power. An SIR measuring portion (28) divides an averaged received desired wave power integral by an averaged quasi-interference power integral to obtain the received SIR (29).
摘要翻译： PCT No.PCT / JP97 / 01289第 371日期1997年12月12日 102（e）日期1997年12月12日PCT提交1997年4月14日PCT公布。第WO97 / 39545号公报日期1997年10月23日具有能够提高使用导频符号的CDMA移动无线电设备中的接收SIR测量精度的简单配置的SIR测量装置。接收信号（20）被输入到同步检测器（21），该同步检测器重新产生与导频信号的重复周期相当的符号的时钟定时和帧定时。内插相干检测器（22）通过绝对相位相干检测产生从接收信号（20）获得的信息符号（23）。决定信号功率计算器（24）获得期望的波功率值。准干扰功率计算器（25）获得信息符号的功率值和衰落包络之间的差异，并将该差作为准干扰功率。积分器（26和27）集成了所需的波功率和准干扰波功率。 SIR测量部分（28）将平均的接收期望波功率积分除以平均准干扰功率积分以获得接收SIR（29）。

5. 发明授权

US08458549B2 Data transmission method, data reception method, mobile terminal and radio communication system 失效
标题翻译：数据传输方式，数据接收方式，移动终端和无线通信系统
公开(公告)号：US08458549B2
公开(公告)日：2013-06-04
申请号：US12673712
申请日：2008-08-13
申请人： Masayuki Furusawa , Yousuke Iizuka , Yukihiko Okumura
发明人： Masayuki Furusawa , Yousuke Iizuka , Yukihiko Okumura
IPC分类号： G08C25/02
CPC分类号： H04L1/1607 , H04L1/0061 , H04L1/0065
摘要： A data transmission method according to the present invention includes the steps of: (A) adding a first CRC code to transmission data; (B) dividing the transmission data to which the first CRC code has been added into a plurality of encoded bit sequences; (C) adding a second CRC code to at least one of the divided encoded bit sequences; (D) performing error correction encoding processing on the encoded bit sequences; and (E) transmitting the encoded bit sequences on which the error correction encoding processing has been performed.
摘要翻译：根据本发明的数据传输方法包括以下步骤：（A）向发送数据添加第一CRC码; （B）将已经添加了第一CRC码的发送数据划分成多个编码比特序列; （C）向所分割的编码比特序列中的至少一个添加第二CRC码; （D）对编码的比特序列执行纠错编码处理; 和（E）发送已经执行了纠错编码处理的编码比特序列。

6. 发明授权

US08295332B2 Channel estimation device and method, demodulation device and method, and fading frequency decision device and method 有权
标题翻译：信道估计装置及方法，解调装置及方法，衰落频率决策装置及方法
公开(公告)号：US08295332B2
公开(公告)日：2012-10-23
申请号：US13033035
申请日：2011-02-23
申请人： Yukihiko Okumura , Hidehiro Ando , Masafumi Usuda , Yoshihiro Ishikawa , Seizo Onoe
发明人： Yukihiko Okumura , Hidehiro Ando , Masafumi Usuda , Yoshihiro Ishikawa , Seizo Onoe
IPC分类号： H04B1/69 , H04L25/20
CPC分类号： H04L25/0234 , H04B1/707 , H04B1/7115 , H04B2201/70701 , H04L25/0228
摘要： In this invention, a channel estimation value of data symbols of a data channel is calculated by weighting and averaging pilot symbols in a parallel time multiplexing method. Also, a channel estimation value of data symbols during each data symbol interval is calculated by dividing data symbols in a slot into a plurality of data symbol intervals, selecting pilot symbols suitable for calculation of a channel estimation value of data symbols during each data symbol interval and weighting and averaging that pilot symbols. Also, a fading frequency is detected based on an inner product value of pilot symbols. Weighting factors are changed based on the detected fading frequency. Also, a channel estimation value is calculated by weighting and averaging pilot signals using a plurality of weighting sequences. The calculated channel estimation value is used to demodulate received data. The output data with the highest quality is selected by judging reliability of these plurality of demodulated data. It is also possible to select some weighting sequences based on the result of the reliability judgment of the demodulated data for predetermined period of time. In this case, after the selection, demodulation is performed by using these selected weighting sequences only.
摘要翻译：在本发明中，通过并行时间复用方法对导频符号进行加权和平均来计算数据信道的数据符号的信道估计值。此外，通过将时隙中的数据符号划分为多个数据符号间隔来计算每个数据符号间隔期间的数据符号的信道估计值，在每个数据符号间隔期间选择适合于计算数据符号的信道估计值的导频符号并对该导频符号进行加权和平均。此外，基于导频符号的内积值来检测衰落频率。加权因子根据检测到的衰落频率而改变。此外，通过使用多个加权序列对导频信号进行加权和平均来计算信道估计值。所计算的信道估计值用于解调接收的数据。通过判断这些多个解调数据的可靠性来选择具有最高质量的输出数据。也可以基于解调数据的可靠性判断的结果来选择一些加权序列预定的时间段。在这种情况下，在选择之后，仅通过使用这些选择的加权序列来执行解调。

7. 发明授权

US08201040B2 Communication device, radio communication terminal, radio base station and communication method 有权
标题翻译：通信设备，无线通信终端，无线基站和通信方式
公开(公告)号：US08201040B2
公开(公告)日：2012-06-12
申请号：US11969492
申请日：2008-01-04
申请人： Etsuhiro Okamoto , Yukihiko Okumura , Tetsuro Kitayama , Hidetoshi Ebara
发明人： Etsuhiro Okamoto , Yukihiko Okumura , Tetsuro Kitayama , Hidetoshi Ebara
IPC分类号： H04L1/18 , H03M13/00
CPC分类号： H04W52/06 , H04L1/1685 , H04L1/1825 , H04L1/1848 , H04L1/188 , H04W52/08 , H04W52/12 , H04W52/14 , H04W52/48
摘要： A communication method for continuously receiving multiple pieces of data from a radio base station via a radio link. The method includes determining whether or not any one of the multiple pieces of data is lost; and making an instruction to the radio base station to increase the transmission power of the radio base station when it is determined that any one of the multiple pieces of data is lost, the instruction being made before a retransmission timing when the transmitter retransmits the lost data piece.
摘要翻译：一种用于经由无线电链路从无线电基站连续接收多条数据的通信方法。该方法包括确定多条数据中的任何一条是否丢失; 以及当确定所述多个数据中的任何一个丢失时，向所述无线电基站指示增加所述无线电基站的发射功率，所述指令是在所述发射机重发所述丢失数据之前在重传定时之前进行的片。

8. 发明授权

US08010878B2 Data transmission method, data transmission system, transmitting method, receiving method, transmitting apparatus and receiving apparatus 有权
标题翻译：数据传输方法，数据传输系统，发送方式，接收方式，发送装置和接收装置
公开(公告)号：US08010878B2
公开(公告)日：2011-08-30
申请号：US11910248
申请日：2006-03-30
申请人： Yukihiko Okumura
发明人： Yukihiko Okumura
IPC分类号： H03M13/00
CPC分类号： H04L1/0046 , H03M13/09 , H04L1/0041 , H04L1/0054 , H04L1/0061 , H04L1/0075 , H04L1/0083 , H04L1/0091
摘要： In variable rate data transmission, a data transmission method or the like is provided which enables adjustment for achieving desired erroneous rate detection. A transmitting side places a calculated error detecting code after the transmission data in each frame, generates frame data in which an R-bit series before the final bit position of the error detecting code is rearranged in inverse order, and transmits. A receiving side assumes the transmission data and error detecting code by assuming the final bit position of the frame data in each frame, conducting the assumption presuming that the rearrangement in inverse order has occurred on the transmitting side. Among the assumed final bit positions, the position determined to be errorless as a result of the error detection based on the assumed transmission data and error detecting code is determined as the final bit position. R can be greater or less than the number of bits of the error detecting code.
摘要翻译：在可变速率数据传输中，提供数据传输方法等，其能够进行调整以实现期望的错误率检测。发送侧将计算出的错误检测码放在每帧中的发送数据之后，生成帧数据，其中错误检测码的最后位位置之前的R比特序列以相反的顺序重排，并发送。接收侧通过假设每帧中的帧数据的最终比特位置来假定发送数据和错误检测码，进行假定在发送侧发生了相反顺序的重新排列的假设。在假定的最终位位置中，作为基于假定的发送数据和错误检测码的错误检测的结果而被确定为无错的位置被确定为最终位位置。 R可以大于或小于错误检测码的位数。

9. 发明申请

US20110142102A1 CHANNEL ESTIMATION DEVICE AND METHOD, DEMODULATION DEVICE AND METHOD, AND FADING FREQUENCY DECISION DEVICE AND METHOD 有权
标题翻译：信道估计装置和方法，解调装置和方法以及渐变频率决策装置和方法
公开(公告)号：US20110142102A1
公开(公告)日：2011-06-16
申请号：US13033035
申请日：2011-02-23
申请人： Yukihiko Okumura , Hidehiro Ando , Masafumi Usuda , Yoshihiro Ishikawa , Seizo Onoe
发明人： Yukihiko Okumura , Hidehiro Ando , Masafumi Usuda , Yoshihiro Ishikawa , Seizo Onoe
IPC分类号： H04B1/10 , H04L27/06 , H04B1/707
CPC分类号： H04L25/0234 , H04B1/707 , H04B1/7115 , H04B2201/70701 , H04L25/0228
摘要： In this invention, a channel estimation value of data symbols of a data channel is calculated by weighting and averaging pilot symbols in a parallel time multiplexing method. Also, a channel estimation value of data symbols during each data symbol interval is calculated by dividing data symbols in a slot into a plurality of data symbol intervals, selecting pilot symbols suitable for calculation of a channel estimation value of data symbols during each data symbol interval and weighting and averaging that pilot symbols. Also, a fading frequency is detected based on an inner product value of pilot symbols. Weighting factors are changed based on the detected fading frequency. Also, a channel estimation value is calculated by weighting and averaging pilot signals using a plurality of weighting sequences. The calculated channel estimation value is used to demodulate received data. The output data with the highest quality is selected by judging reliability of these plurality of demodulated data. It is also possible to select some weighting sequences based on the result of the reliability judgment of the demodulated data for predetermined period of time. In this case, after the selection, demodulation is performed by using these selected weighting sequences only.
摘要翻译：在本发明中，通过并行时间复用方法对导频符号进行加权和平均来计算数据信道的数据符号的信道估计值。此外，通过将时隙中的数据符号划分为多个数据符号间隔来计算每个数据符号间隔期间的数据符号的信道估计值，在每个数据符号间隔期间选择适合于计算数据符号的信道估计值的导频符号并对该导频符号进行加权和平均。此外，基于导频符号的内积值来检测衰落频率。加权因子根据检测到的衰落频率而改变。此外，通过使用多个加权序列对导频信号进行加权和平均来计算信道估计值。所计算的信道估计值用于解调接收的数据。通过判断这些多个解调数据的可靠性来选择具有最高质量的输出数据。也可以基于解调数据的可靠性判断的结果来选择一些加权序列预定的时间段。在这种情况下，在选择之后，仅通过使用这些选择的加权序列来执行解调。

10. 发明申请

US20110080884A1 COORDINATED TRANSMISSION METHOD, COORDINATED TRANSMISSION SYSTEM, CENTRAL STATION AND RADIO BASE STATION 有权
标题翻译：协调传输方式，协调传输系统，中心站和无线基站
公开(公告)号：US20110080884A1
公开(公告)日：2011-04-07
申请号：US12896082
申请日：2010-10-01
申请人： Yusuke Ohwatari , Anass Benjebbour , Yukihiko Okumura , Junichiro Hagiwara
发明人： Yusuke Ohwatari , Anass Benjebbour , Yukihiko Okumura , Junichiro Hagiwara
IPC分类号： H04W4/00 , H04B7/00
CPC分类号： H04B7/022 , H04W16/28
摘要： A coordinated transmission method of the invention has the steps of selecting a directional pattern corresponding to an area in which a radio terminal locates, from among a plurality of directional patterns determined respectively corresponding to a plurality of resources in frequency domains where the plurality of directional patterns is configured so that a plurality of radio base stations surrounding the area transmits, to the area, directional beams of same frequency domain resources to face one another, while not transmitting the directional beams of the same frequency domain resources using the same frequency domain resources to areas adjacent to the area, and of distributing a signal to transmit to the radio terminal according to the selected directional pattern, determining a frequency domain and directions of directional beams regarding the distributed signal, and delivering the signal to each of the plurality of radio base stations that simultaneously transmits the signal to the radio terminal.
摘要翻译：本发明的协调传输方法具有以下步骤：从分别对应于多个方向图中的多个资源的多个资源中确定的多个方向图中选择与无线电终端所在的区域相对应的方向图，被配置为使得围绕该区域的多个无线电基站将相同频域资源的定向波束面向彼此发送，同时不使用相同的频域资源发送相同频域资源的定向波束与该区域相邻的区域，并且根据所选择的方向图分发信号到无线终端，确定关于分布式信号的定向波束的频域和方向，以及将信号传送到多个无线电基站同时发送信号的站无线电终端。

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