Method and device for effective data radio transmission
    1.
    发明授权
    Method and device for effective data radio transmission 失效
    用于有效数据无线电传输的方法和装置

    公开(公告)号:US07079496B1

    公开(公告)日:2006-07-18

    申请号:US09446545

    申请日:1997-08-14

    IPC分类号: H04J3/00

    摘要: The invention relates to a method and a device for digital data radiotransmission between a fixed station (1) and at least one mobile station (2, 3) at one or several carrier frequencies (F1, F2 . . . ), wherein the data is transmitted in several time slots (Z1, Z2 . . . ) according to the time-multiplex technique. A specific amount of time is required to change from one carrier frequency to another carrier frequency using a slow-hopping HF module. The data is transmitted in an active followed by an inactive time slot during which no data is transmitted and which is sufficient for the HF module to program the frequency for the following active time slot. According to the invention, an inactive time slot is shorter than an active time slot.

    摘要翻译: 本发明涉及一种在一个或多个载波频率(F 1,F 2 ...)上的固定站(1)和至少一个移动站(2,3)之间的数字数据无线电传输的方法和装置,其中 根据时间复用技术,在几个时隙(Z 1,Z 2 ...)中发送数据。 需要使用慢跳频HF模块从一个载波频率改变到另一载波频率的特定时间量。 数据以活动状态发送,其后不活动时隙,在此期间无数据传输,而HF模块对于下列活动时隙的频率进行编程则足够。 根据本发明,非活动时隙比活动时隙短。

    Radio interface for a small wireless installation in the 2.4 GHZ ISM band
    2.
    发明授权
    Radio interface for a small wireless installation in the 2.4 GHZ ISM band 失效
    无线接口,用于2.4 GHz GHZ ISM频段的小型无线安装

    公开(公告)号:US06967934B1

    公开(公告)日:2005-11-22

    申请号:US09446752

    申请日:1998-12-30

    摘要: The present invention relates to a radio inter-face for a cordless small system using the 2.4 GHz ISM band. According to the present invention, a transmission system having a fixed station (1) and at least one mobile station (2, 3) is provided for this purpose, the fixed station (1) and the mobile station (2) each having devices (RF modules 4, 5) in order to transmit the data in time slots using a frequency-division multiplex method (FDMA) and a time-division multiplex method (TDMA), and with time division duplexing (TDD). As is known from DECT Standard, the data are modulated onto a carrier frequency (fx) using a GMSK modulation method. The RF modules (4, 5) in the fixed station (1) and, respectively, the mobile station (2) are in this case designed such that the carrier frequency (fx) is changed after a predetermined time period, which may correspond, for example, to the time duration of a time slot or of a transmission frame. A transmission frame in this case contains 16 time slots.

    摘要翻译: 本发明涉及一种使用2.4GHz ISM频带的无绳小型系统的无线电接口。 根据本发明,为此目的,提供了具有固定站(1)和至少一个移动站(2,3)的传输系统,固定站(1)和移动台(2)各自具有设备 RF模块4,5),以便使用频分复用方法(FDMA)和时分复用方法(TDMA)以及时分双工(TDD)在时隙中发送数据。 如从DECT标准中已知的,使用GMSK调制方法将数据调制到载波频率(f x x x)上。 在这种情况下,固定站(1)和移动站(2)中的RF模块(4,5)在这种情况下被设计成使得载波频率(f x x)在 预定时间段,其可以对应于例如时隙或传输帧的持续时间。 这种情况下的传输帧包含16个时隙。

    Method, mobile station and base station for transmitting signals
    3.
    发明授权
    Method, mobile station and base station for transmitting signals 失效
    方法,移动台和基站发射信号

    公开(公告)号:US06693885B1

    公开(公告)日:2004-02-17

    申请号:US09446654

    申请日:2000-03-24

    IPC分类号: H04B7212

    摘要: According to the invention, a mobile radio is provided for radio transmission in time-division multiplex frames, where these frames each alternatively have active time slots (Z1) in which data are transmitted, and inactive time slots (Z2) in which no data are transmitted. The time duration of the active time slots is, in this case, twice the duration of the inactive time slots. The mobile radio (1, 2) has a burst mode controller (13) which provides the time-division multiplex frame structure for transmission, and a clock preset device (18), which presets the clock rate for the burst mode controller (13). The clock rate which the clock device (18) presets for the burst mode controller (13) is twice as high during the inactive time slots (Z2) as during the active time slots (Z1).

    摘要翻译: 根据本发明,为时分多路复用帧中的无线电传输提供移动无线电,其中这些帧每个交替地具有其中发送数据的活动时隙(Z1),其中不存在数据的无效时隙(Z2) 传输。 在这种情况下,活动时隙的持续时间是非活动时隙的持续时间的两倍。 移动无线电设备(1,2)具有提供用于传输的时分多路复用帧结构的突发模式控制器(13),以及用于预设突发模式控制器(13)的时钟速率的时钟预设装置(18) 。 时钟设备(18)为突发模式控制器(13)预设的时钟速率在非活动时隙(Z2)期间为在活动时隙(Z1)期间的两倍。

    Method and device for radio transmission
    4.
    发明授权
    Method and device for radio transmission 失效
    无线电传输的方法和装置

    公开(公告)号:US06678262B1

    公开(公告)日:2004-01-13

    申请号:US09446198

    申请日:1999-12-16

    IPC分类号: H04B7212

    摘要: The invention proposes a method and an apparatus for the radio transmission of user data, arranged in data words of a defined length, in time-division multiplex frames having active time slots in which data are transmitted and inactive time slots in which no data are transmitted. The user data are stored temporarily in a memory at a first data rate, and are read out from the memory and converted into the time-division multiplex frames at a second, greater data rate. During the time period from the beginning of an active time slot to the beginning of the subsequent active time slot, n (n=a whole number ≧1) data words of the user data are thereby respectively stored. By synchronizing the storing and the reading out of the user data, these data can be transmitted with the smallest possible delay in an arbitrarily selected time slot of the time-division multiplex frame.

    摘要翻译: 本发明提出了一种用于以具有定义长度的数据字布置的用户数据的无线电传输的方法和装置,在具有发送数据的活动时隙的时分多路复用帧中,其中不传输数据的无效时隙 。 用户数据以第一数据速率临时存储在存储器中,并从存储器读出并以第二更大的数据速率转换成时分多路复用帧。 在从活动时隙开始到后续活动时隙开始的时间段期间,分别存储用户数据的n(n =整数> = 1)数据字。 通过使用户数据的存储和读出同步,可以在时分复用帧的任意选择的时隙中以尽可能小的延迟发送这些数据。