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    • 31. 发明申请
    • REFERENCE UNIT FOR A LOCATION SYSTEM OF A CELLULAR NETWORK
    • 一个细胞网络定位系统的参考单元
    • WO01078260A1
    • 2001-10-18
    • PCT/US2001/008557
    • 2001-03-19
    • H04B7/26
    • H04B7/2696
    • A system is described which provides a timing reference for a plurality of BTSs (base transceiver stations), of an unsynchronized cellular network. The system receives and processes two types of radio sources, namely BTSs signals and navigation satellite signals. It employs internal triggering for snap starts. One embodiment of the system incorporates commercial GPS receiver (65) for executing some of the tasks otherwise performed by the processor and triggering circuit. A local clock (78) determines the rate at which signals of the radio sources are sampled. In the method of the invention, regular satellite positioning is performed out of which local clock bias is calculated, and local clock drift is calculated by the ratio between observed Doppler offset and calculated Doppler offset. Mutual BTSs signals are matched, providing mutual synchronization by referencing the timing of identifiable timing structures of each BTSs to the snap start. The BTSs signals are also referenced to satellite system time in order to facilitate the use of hybrid navigation techniques.
    • 描述了为不同步的蜂窝网络的多个BTS(基站收发器站)提供定时参考的系统。 该系统接收和处理两种类型的无线电源,即BTS信号和导航卫星信号。 它采用内部触发快速启动。 该系统的一个实施例包括用于执行由处理器和触发电路另外执行的一些任务的商用GPS接收器(65)。 本地时钟(78)确定无线电源的信号被采样的速率。 在本发明的方法中,执行常规的卫星定位,由此计算出本地时钟偏差,并且通过观察到的多普勒偏移和计算的多普勒偏移之间的比率来计算本地时钟漂移。 相互BTS信号被匹配,通过参考每个BTS的可识别定时结构的定时到快速启动来提供相互同步。 BTS信号也参考卫星系统时间,以便于使用混合导航技术。
    • 33. 发明申请
    • METHOD AND APPARATUS FOR PROVIDING WIRELESS COMMUNICATION SYSTEM SYNCHRONIZATION
    • 提供无线通信系统同步的方法和装置
    • WO0035117A3
    • 2001-01-04
    • PCT/US9928705
    • 1999-12-03
    • QUALCOMM INC
    • WALLACE MARK STIEDEMANN EDWARD G JRWHEATLEY CHARLES E IIIWALTSON J ROD
    • H04B7/24H04B7/26H04L7/00H04L7/08H04Q7/36
    • H04B7/2696
    • When insufficient traffic is present in the network to maintain synchronization in this manner, other methods must be used. One approach involves making direct measurements of the timing between base stations (602, 604). This is accomplished in one of two ways. The base may interrupt its transmissions on all sectors for a short interval during which it determines the time of arrival of signals from other base stations (602, 604). Given knowledge of the other base station locations, time errors relative to all other base stations (602, 604) may be derived. Alternatively, the base may send a short signal at high power in the mobile transmit band. This time-of-arrival of this signal is measured by the surrounding base stations and the time errors between pairs of base stations are computed. In some cases, a base station (602, 604) may be isolated sufficiently from all other base stations in the network such that direct base-to-base measurement is not viable. In this case, a fixed mobile (606) is placed at a location in the handoff region between the isolated cell and another cell in the network. The fixed mobile (606) either performs measurements of base station pilots on command of the base and reports the timing information, or sends a burst transmission at a specified time and power level to be measured by the base stations.
    • 当网络中不足够的流量以这种方式维持同步时,必须使用其他方法。 一种方法涉及对基站(602,604)之间的定时进行直接测量。 这是通过两种方式之一实现的。 基站可以在其间确定来自其他基站(602,604)的信号的到达时间的短间隔中断其在所有扇区上的传输。 考虑到其他基站位置的知识,可以导出相对于所有其他基站(602,604)的时间误差。 或者,基站可以在移动发射频带中以高功率发送短信号。 该信号的到达时间由周围的基站测量,并且计算基站对之间的时间误差。 在一些情况下,基站(602,604)可以与网络中的所有其他基站充分隔离,使得直接基站到基站测量不可行。 在这种情况下,固定移动台(606)被放置在隔离小区与网络中的另一个小区之间的切换区域的位置。 固定移动台(606)可以根据基地台的指令进行基站导频的测量,并报告定时信息,或者在指定的时间和功率水平上发送要由基站测量的突发传输。
    • 34. 发明申请
    • METHOD AND APPARATUS FOR PROVIDING WIRELESS COMMUNICATION SYSTEM SYNCHRONIZATION
    • 提供无线通信系统同步的方法和装置
    • WO00035117A2
    • 2000-06-15
    • PCT/US1999/028705
    • 1999-12-03
    • H04B7/24H04B7/26H04L7/00H04L7/08H04Q7/36H04B7/00
    • H04B7/2696
    • When insufficient traffic is present in the network to maintain synchronization in this manner, other methods must be used. One approach involves making direct measurements of the timing between base stations (602, 604). This is accomplished in one of two ways. The base may interrupt its transmissions on all sectors for a short interval during which it determines the time of arrival of signals from other base stations (602, 604). Given knowledge of the other base station locations, time errors relative to all other base stations (602, 604) may be derived. Alternatively, the base may send a short signal at high power in the mobile transmit band. This time-of-arrival of this signal is measured by the surrounding base stations and the time errors between pairs of base stations are computed. In some cases, a base station (602, 604) may be isolated sufficiently from all other base stations in the network such that direct base-to-base measurement is not viable. In this case, a fixed mobile (606) is placed at a location in the handoff region between the isolated cell and another cell in the network. The fixed mobile (606) either performs measurements of base station pilots on command of the base and reports the timing information, or sends a burst transmission at a specified time and power level to be measured by the base stations.
    • 当网络中不足够的流量以这种方式维持同步时,必须使用其他方法。 一种方法涉及对基站(602,604)之间的定时进行直接测量。 这是通过两种方式之一实现的。 基站可以在其间确定来自其他基站(602,604)的信号到达时间的短间隔中断其在所有扇区上的传输。 考虑到其他基站位置的知识,可以导出相对于所有其他基站(602,604)的时间误差。 或者,基站可以在移动发射频带中以高功率发送短信号。 该信号的到达时间由周围的基站测量,并且计算基站对之间的时间误差。 在一些情况下,基站(602,604)可以与网络中的所有其他基站充分隔离,使得直接基站到基站测量不可行。 在这种情况下,固定移动台(606)被放置在隔离小区与网络中的另一个小区之间的切换区域的位置。 固定移动台(606)可以根据基地台的指令进行基站导频的测量,并报告定时信息,或者在指定的时间和功率水平上发送要由基站测量的突发传输。
    • 35. 发明申请
    • METHOD AND SYSTEM TO DIAGNOSE THE FUNCTIONAL STATE OF RADIO BASE STATIONS IN A DIGITAL TELECOMMUNICATION SYSTEM
    • 用于诊断数字电信系统中无线电台站的功能状态的方法和系统
    • WO00019752A1
    • 2000-04-06
    • PCT/EP1999/007009
    • 1999-09-21
    • H04B7/26H04W24/00H04Q7/34
    • H04W24/00H04B7/2696
    • The invention relates to a method and a system to diagnose the functional state of a radio base station (RFP) in a system of a digital telecommunication system of the type known as DECT system (Digital Enhanced Cordless Telecommunications), that is a system in which the signals are arranged in frames, and the frame is divided in 2 half frames, during the first one of which the stations (RFP) are arranged to monitor the interference level of the radio channels, while they are arranged during the second half frame to pick up the access requests of the mobile stations (PP). According to the invention the method foresees the steps of: predisposing every radio base station (RFP) to tune up to the programmes transmitted by another radio base station (RFP) during said first half frame seeking a synchronism word/field (S) representing the configuration emitted by the radio base stations; if the tuning operation presents a positive result, decoding the field (D) reserved for the data transmission and sending of the decoded station identification data (RFPI) to the central control fixed part (CCFP) for further processing.
    • 本发明涉及一种用于诊断被称为DECT系统(数字增强无绳电信)的数字电信系统的系统中的无线电基站(RFP)的功能状态的方法和系统,其是其中 信号被布置成帧,并且帧被分成2个半帧,其中第一个站点(RFP)布置成监视无线电信道的干扰电平,而它们在第二个半帧期间被布置 接收移动台(PP)的接入请求。 根据本发明,该方法预见了以下步骤:在所述前半帧期间,倾听每个无线电基站(RFP)调谐到由另一无线电基站(RFP)发送的节目,寻找表示所述第一半帧的同步字/字段 由无线电基站发射的配置; 如果调谐操作呈现肯定结果,则为保留用于数据传输的字段(D)和解码站标识数据(RFPI)发送到中央控制固定部分(CCFP)进行进一步处理。
    • 37. 发明申请
    • DECT SYSTEM SYNCHRONIZATION BY BASE STATION DRIFT
    • SYNCHRONIZING DECT系统BY漂移基站
    • WO98057448A1
    • 1998-12-17
    • PCT/DE1998/001550
    • 1998-06-05
    • H04Q7/36H04B7/26
    • H04B7/2696
    • The invention relates to a method and to a base station for radio communication with a mobile component according to a TDMA format. The base station is fitted with a device (3) for detecting whether other systems are active in the send/receive range and optionally detects the relative time lags in the time slot for each of the other systems which are active in the send/receive range in relation to the base station. The base station also has a device (4) for storing the relative time lags detected. Subsequently, the time position of the base station time slot is displaced by a device (5) to minimize the sum of the detected time lags stored in device (4).
    • 根据本发明,它是根据TDMA格式中,一种方法以及用于与手机无线通信的基站提供。 在这种情况下,基站有一个装置(3),其检测在所述发送/接收范围的其它活性系统是否,和进一步任选地各自在发送/接收范围,进一步的活性​​系统中的时隙的相对时间偏移相对于基站 检测。 所述基站还包括:(4),用于存储检测到的相对时间偏移的装置。 装置(5)然后将这个基站的时隙的时间位置,使得所检测到之和(4)中被最小化存储的时间偏移的装置。
    • 38. 发明申请
    • LINK ADAPTION RELATED TO RADIO
    • 链接自适应无线电
    • WO98046026A1
    • 1998-10-15
    • PCT/SE1998/000614
    • 1998-04-03
    • H04L29/08H04B7/26H04L1/18H04W28/06H04N7/34H04B17/00
    • H04W28/06H04B7/2696H04L1/0009H04L1/0026H04L1/18
    • The invention relates to a method and an arrangement at a wireless, digital, radio communications system which contribute to improving the automatic link adaption, i.e. to, while a call is going on, make it possible to change the channel coding for, for instance, the GSM-services 14,4 kbps and HSCSD. The invention solves this by, at change of channel coding from 14,4 kbps to a more robust channel coding, such as 9,4 kbps, also parameters from RLP, in addition to RXQUAL, are utilized, which also makes possible use of information which describes status of the data transmission link and indirectly real data rate. This will increase the possibilities to, at right point of time, trig a change of channel coding while signal communication is going on between the transmitting and receiving equipments.
    • 本发明涉及一种在无线数字无线电通信系统中的方法和装置,其有助于改善自动链路适配,即,在呼叫进行时,可以改变信道编码,例如, GSM服务14,4kbps和HSCSD。 本发明通过在将信道编码从14,4kbps改变为更鲁棒的信道编码(诸如9,4kbps)的情况下解决这个问题,并且除了使用RXQUAL之外,还使用来自RLP的参数,这也使得可以使用信息 其描述了数据传输链路的状态和间接的实际数据速率。 这将增加在正确的时间点在发送和接收设备之间进行信号通信时引发信道编码的改变的可能性。