Retransmission control method of CDMA mobile communication
    1.
    发明授权
    Retransmission control method of CDMA mobile communication 失效
    CDMA移动通信的重传控制方法

    公开(公告)号:US06157628A

    公开(公告)日:2000-12-05

    申请号:US793642

    申请日:1997-11-14

    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。

    Error control method and error control device for digital communication
    2.
    发明授权
    Error control method and error control device for digital communication 失效
    数字通信的误差控制方法和误差控制装置

    公开(公告)号:US6134694A

    公开(公告)日:2000-10-17

    申请号:US728216

    申请日:1996-10-10

    摘要: In an error control device, an error correction decoding portion 33 selects a bit position which has low reliability from the received signal by means of a predetermined bit number, generates error patterns by assuming that the errors exist at the bit position, and carries out modified Chase decoding for the received signals on the basis of each error pattern in modified Chase decoding portion 332. Modified Chase decoding portion 332 calculates the reliability of each error pattern by using the reliability of each bit in the received signal.

    摘要翻译: 在误差控制装置中,误差校正解码部分33通过预定的比特数从接收信号中选择具有低可靠性的比特位置,通过假设在比特位置存在错误来生成错误模式,并且执行修改 基于修正Chase解码部分332中的每个错误模式对接收到的信号进行追踪解码。修改Chase解码部分332通过使用接收信号中的每个位的可靠性来计算每个错误模式的可靠性。

    SIGNAL TRANSMISSION METHOD AND BASE STATION IN MOBILE COMMUNICATION
    3.
    发明申请
    SIGNAL TRANSMISSION METHOD AND BASE STATION IN MOBILE COMMUNICATION 失效
    信号传输方法和移动通信中的基站

    公开(公告)号:US20090161539A1

    公开(公告)日:2009-06-25

    申请号:US12333090

    申请日:2008-12-11

    IPC分类号: H04L12/26 H04B7/216 H04W88/08

    摘要: A signal transmission method checks, when detecting an occurrence of a communication request, whether the communication request is a high speed communication (step S302). In the case of the high speed communication, it checks whether the number of current high speed communications (m) plus one is greater than the upper limit (mmax) of the high speed communication (step S312). If greater, it cancels the request as a call loss (S316), and sets to a variable a the ratio (h) of the rate of the high speed communication to that of a low speed communication. If the communication request is the low speed communication, it sets one to the variable a (step S304). It compares n plus a with nmax (step S306), where n is the total number of all the current communications, a is the value associated with the communication request, and nmax is the upper limit of the number of communications acceptable in a bandwidth, all of which are expressed in terms of the number of the low speed communications. If n plus a is greater than nmax, the communication request is canceled as a call loss (S316). Otherwise, the total number of the current high speed communications (m) and the total number of all the current communications (n) expressed in terms of the number of the low speed communications are updated, and a channel is assigned to the communication request (step S310).

    摘要翻译: 当检测到通信请求的发生时,信号传输方法检查通信请求是否为高速通信(步骤S302)。 在高速通信的情况下,检查当前高速通信(m)加1的数量是否大于高速通信的上限(mmax)(步骤S312)。 如果较大,则将该请求作为呼叫损失取消(S316),并将高速通信的速率与低速通信的比率(h)设定为变量。 如果通信请求是低速通信,则将其设置为变量a(步骤S304)。 它将n加a与nmax进行比较(步骤S306),其中n是当前通信的总数,a是与通信请求相关联的值,nmax是带宽中可接受的通信数量的上限, 所有这些都以低速通信的数量表示。 如果n加a大于nmax,则通信请求作为呼叫丢失被取消(S316)。 否则,更新当前高速通信的总数(m)和以低速通信的数量表示的所有当前通信的总数(n),并且将通道分配给通信请求 步骤S310)。

    Specific absorption rate measuring system, and a method thereof
    4.
    发明授权
    Specific absorption rate measuring system, and a method thereof 有权
    比吸收率测定系统及其方法

    公开(公告)号:US07511511B2

    公开(公告)日:2009-03-31

    申请号:US11754683

    申请日:2007-05-29

    IPC分类号: G01N22/00 G01R29/08

    CPC分类号: G01R29/0885

    摘要: A biological tissue equivalent phantom unit to be used by the specific absorption rate measuring system for evaluating absorption of electromagnetic wave energy includes a biological tissue equivalent phantom for absorbing an electromagnetic wave. In addition, two or more electro-optical crystals are arranged at two or more measurement points in the biological tissue equivalent phantom. The electro-optical crystals have a dielectric constant that is approximately equal to that of the biological tissue equivalent phantom. Two or more optical fibers are laid in the biological tissue equivalent phantom for optically connecting each of the electro-optical crystals to an external destination.

    摘要翻译: 用于评估电磁波能量吸收的比吸收率测定系统使用的生物体组织等效体模部包括吸收电磁波的生物体组织等效体模。 此外,在生物组织等效体模的两个以上的测定点配置2个以上的电光晶体。 电光晶体的介电​​常数近似等于生物组织等效体模的介电常数。 将两根或更多根光纤放置在生物组织等效体模中,以将每个电光晶体光学地连接到外部目的地。

    Measurement system of specific absorption rate
    6.
    发明申请
    Measurement system of specific absorption rate 有权
    比吸收率测量系统

    公开(公告)号:US20060012530A1

    公开(公告)日:2006-01-19

    申请号:US11169646

    申请日:2005-06-30

    IPC分类号: H01Q1/24

    CPC分类号: G01R29/0857

    摘要: A specific absorption rate measuring apparatus comprises a probe configured to measure, in a two-dimensional plane, the amplitude and the phase of an electric or magnetic field generated in a phantom of which electrical properties similar to a human body tissues; an electric and/or magnetic field estimation unit configured to estimate a three-dimensional electric field distribution to be produced from a wave source defined by the two-dimensional electric and magnetic fields at a measuring point, based on the measurement results of the probe; and a specific absorption rate estimation unit configured to estimate a three-dimensional distribution of specific absorption rate based on the estimation result of the electric field estimation unit.

    摘要翻译: 具体的吸收率测量装置包括被配置成在二维平面中测量以类似于人体组织的电特性的体模中产生的电场或磁场的振幅和相位的探针; 电场和/或磁场估计单元,其被配置为基于所述探针的测量结果来估计在由测量点由所述二维电场和磁场限定的波源产生的三维电场分布; 以及比吸收率估计单元,其被配置为基于电场估计单元的估计结果来估计特定吸收率的三维分布。

    Communicating encrypted signals in which random bits and random bit
position data are inserted
    8.
    发明授权
    Communicating encrypted signals in which random bits and random bit position data are inserted 失效
    通信其中插入随机位和随机位位置数据的加密信号

    公开(公告)号:US6084966A

    公开(公告)日:2000-07-04

    申请号:US549827

    申请日:1996-04-08

    IPC分类号: H04L9/18 H04K1/00

    摘要: A transmitted signal is enciphered or concealed to thereby prevent interference, even when data indicative of the receiver terminal is made public because of the use of a common access channel. In the transmitter, in a random-number bit adder 6, a random-number .alpha. (digital signal) generated by a random-number generator 5 is inserted into a transmitting data signal DA generated by a transmitting data generator 1, and the resultant is outputted as a signal (DA, .alpha.). An encipherment processor 2 enciphers the signal (DA, .alpha.) and outputs it as a signal (DA, .alpha.)'. In the receiver, this signal (DA, .alpha.)' is deciphered into (DA, .alpha.), and the random-bits .varies. are removed from (DA, .alpha.) to restore the signal DA.

    摘要翻译: PCT No.PCT / JP95 / 01410 Sec。 371日期:1996年4月8日 102(e)日期1996年4月8日PCT提交1995年7月14日PCT公布。 出版物WO96 / 02992 日期1996年2月1日发送的信号被加密或隐藏,从而防止干扰,即使由于使用公共接入信道而使表示接收机终端的数据被公开。 在发送机中,在随机数位加法器6中,将由随机数发生器5生成的随机数α(数字信号)插入到由发送数据生成器1生成的发送数据信号DA中,结果是 作为信号(DA,α)输出。 加密处理器2加密信号(DA,α)并将其作为信号(DA,α)'输出。 在接收机中,该信号(DA,α)被解密为(DA,α),并且从(DA,α)中去除随机比特比例以恢复信号DA。

    CDMA communications method and system
    9.
    发明授权
    CDMA communications method and system 失效
    CDMA通信方式和系统

    公开(公告)号:US5586113A

    公开(公告)日:1996-12-17

    申请号:US335089

    申请日:1994-11-07

    CPC分类号: H04B7/264

    摘要: A CDMA communications method capable of multiplex transmission of data over a wide range from a low rate to high rate such as image data without a considerable increase in a circuit scale. A fundamental transmission rate is determined, for example, at 32 kbps, a rate higher than 8 kbps conventionally used. The data whose transmission rate is equal to the fundamental transmission rate is transmitted in frames including no vacant portion. Data whose transmission rate is lower than the fundamental transmission rate (16 kbps, for example) is transmitted in frames including vacant portions. The vacant portions are not transmitted. This makes it possible to receive data through other channels during a time period associated with the vacant portions. Data of a higher transmission rate, 128 kbps, for example, can be multiplexed and transmitted through four channels using different spreading codes.

    摘要翻译: 一种CDMA通信方法,其能够在诸如图像数据的低速率到高速率的宽范围内多路传输数据,而不会显着增加电路规模。 确定基本传输速率,例如以32kbps,高于常规使用的8kbps的速率。 传输速率等于基本传输速率的数据以包括空格部分在内的帧发送。 传输速率低于基本传输速率(例如16kbps)的数据在包括空白部分的帧中传输。 空的部分不被传送。 这使得可以在与空闲部分相关联的时间段期间通过其他信道接收数据。 例如,128kbps的较高传输速率的数据可以通过使用不同扩展码的四个信道进行复用和传输。

    Speech signal transmission method providing for control
    10.
    发明授权
    Speech signal transmission method providing for control 失效
    语音信号传输方式提供控制

    公开(公告)号:US5553190A

    公开(公告)日:1996-09-03

    申请号:US240391

    申请日:1994-05-10

    CPC分类号: H04B1/46

    摘要: A method of communicating a speech signal over a communication medium which utilizes VOX (Voice Operated Transmitter) control, and a speech signal transmitting unit and a speech signal receiving unit used in said method. The speech signal includes at least one speech-active duration in which actual speech exists and one silent duration in which no actual speech exists. At a transmitting side, the speech signal is analyzed for each of successive frames thereof to determine whether each frame is in the speech-active duration, and is coded for each of successive frames thereof to produce a series of successive coded data of the speech signal. Then, in response to the detection of a speech starting frame of the speech-active duration, the coded data of the speech starting frame is switched to a preamble, and the preamble and the successive coded data subsequent to the speech starting frame are transmitted in the form of a series of successive frames. At a receiving side, the preamble is detected and the decoded results of the coded actual speech data subsequent to the detected preamble are output as a speech signal. When a predetermined number of successive coded actual speech data have been detected without having detected a preamble preceding thereto, it is decided that the decoded results of the coded actual speech data are in a speech-active duration and the decoded results are outputted as a speech signal.

    摘要翻译: 一种通过使用VOX(语音操作发送器)控制的通信介质传送语音信号的方法,以及在所述方法中使用的语音信号发送单元和语音信号接收单元。 语音信号包括其中存在实际语音的至少一个语音活动持续时间和不存在实际语音的一个静默持续时间。 在发送侧,分析其每个连续帧的语音信号,以确定每个帧是否处于语音活动持续时间,并且针对其每个连续帧进行编码,以产生语音信号的一系列连续编码数据 。 然后,响应于语音激活持续时间的语音开始帧的检测,将语音起始帧的编码数据切换到前同步码,并且在语音开始帧之后的前导码和连续的编码数据被发送 一系列连续帧的形式。 在接收侧,检测前同步码,并且将检测到的前导码之后的编码的实际语音数据的解码结果输出为语音信号。 当已经检测到预定数量的连续编码的实际语音数据而没有检测到其中的前导码时,确定编​​码的实际语音数据的解码结果处于语音活动持续时间,并且将解码的结果作为语音输出 信号。