Method for determining the location of echo in an echo canceller
    1.
    发明授权
    Method for determining the location of echo in an echo canceller 失效
    用于确定回声消除器中的回波位置的方法

    公开(公告)号:US5737410A

    公开(公告)日:1998-04-07

    申请号:US666412

    申请日:1996-09-13

    CPC分类号: H04B3/23

    摘要: A method for adaptation to an echo location in an echo canceller comprising an output port, an input port, an adjustable delay unit (43) compensating for the pure delay component in the echo path between the echo location and the output port of the echo canceller, a digital filter (40) calculating, from a signal outgoing to the echo path, an echo location estimate which is shorter than the maximum allowed duration of the echo path. The echo location is determined by calculating the echo path location at which there is a high correlation between the signal outgoing to the echo path and the returned echo. The correlation is calculated in a sliding window having the length of the digital filter.

    摘要翻译: PCT No.PCT / FI94 / 00577 Sec。 371日期1996年9月13日 102(e)1996年9月13日PCT 1994年12月21日PCT PCT。 公开号WO95 / 17784 日期1995年6月29日一种用于适应回波消除器中的回波位置的方法,包括输出端口,输入端口,可调节延迟单元(43),其补偿回波位置和输出端之间的回波路径中的纯延迟分量 回波消除器的端口,从输出到回波路径的信号中计算比回波路径的最大允许持续时间短的回波位置估计的数字滤波器(40)。 回波位置是通过计算回波路径位置来确定的,在回波路径位置处,出现回波路径的信号与返回的回波之间存在高相关性。 在具有数字滤波器的长度的滑动窗口中计算相关性。

    Radio system and a call setup method
    2.
    发明授权
    Radio system and a call setup method 失效
    无线电系统和呼叫建立方法

    公开(公告)号:US6023607A

    公开(公告)日:2000-02-08

    申请号:US866154

    申请日:1997-05-30

    申请人: Mikko Siira

    发明人: Mikko Siira

    CPC分类号: H04B7/10

    摘要: The invention relates to a radio system where oriented antenna beams are used over a radio connection between a network subsystem and a subscriber terminal with a fixed location. The network subsystem comprises means for storing parameters of a bidirectional radio connection, including e.g. the transmit beam angle, the receive beam angle, the air interface delay profile, the air interface impulse response, the transmit power of the network subsystem, the transmit power of the subscriber terminal, and the number of rake branches. The network subsystem also comprises a common measuring unit that measures parameters of a bidirectional test radio connection of a new user.

    摘要翻译: 本发明涉及一种无线电系统,其中定向天线波束在网络子系统和具有固定位置的用户终端之间的无线电连接上使用。 网络子系统包括用于存储双向无线电连接的参数的装置,包括例如。 发射波束角度,接收波束角度,空中接口延迟曲线,空中接口脉冲响应,网络子系统的发射功率,用户终端的发射功率和耙分支数。 网络子系统还包括测量新用户的双向测试无线电连接的参数的公共测量单元。

    Transcoder with prevention of tandem coding of speech
    3.
    发明授权
    Transcoder with prevention of tandem coding of speech 失效
    具有预防语音串联编码的转码器

    公开(公告)号:US5991716A

    公开(公告)日:1999-11-23

    申请号:US930988

    申请日:1997-10-14

    申请人: Matti Lehtimaki

    发明人: Matti Lehtimaki

    摘要: A transcoder which prevents tandem coding of speech in a mobile-to-mobile call within a mobile communication system uses a speech coding method for reducing transmission rate on the radio path. The transcoder includes a speech coder, which encodes the speech signal into speech parameters for transmission to a mobile station, and decodes the speech parameters received from the mobile station into a speech signal according to the speech coding method, as well as a PCM coder for transmitting an uplink speech signal to and for receiving a downlink speech signal from a PCM interface in the form of PCM speech samples. In addition to the normal operation, the transcoder transmits and receives speech parameters through a PCM interface in a subchannel formed by least significant bits of the PCM speech samples. Thus, it is possible to prevent tandem coding while maintaining the standard PCM interface, and the signaling and services associated thereto.

    摘要翻译: PCT No.PCT / FI96 / 00192 Sec。 371日期1997年10月14日第 102(e)1997年10月14日PCT PCT 1996年4月11日PCT公布。 公开号WO96 / 32823 日期1996年10月17日防止移动通信系统内的移动电话到移动通话中语音的串联编码的代码转换器使用用于降低无线电路径上的传输速率的语音编码方法。 代码转换器包括语音编码器,其将语音信号编码成用于传输到移动台的语音参数,并且根据语音编码方法将从移动台接收的语音参数解码为语音信号,以及PCM编码器 以PCM语音样本的形式从PCM接口向下行语音信号发送和接收下行链路语音信号。 除了正常操作之外,代码转换器通过由PCM语音样本的最低有效位形成的子信道中的PCM接口发送和接收语音参数。 因此,可以在保持标准PCM接口以及与其相关联的信令和服务的同时防止串联编码。

    Method for tuning the medium frequency of an RF bandpass filter by
determining and interpolating in relation to medium frequencies at and
offsets from a nominal carrier frequency
    4.
    发明授权
    Method for tuning the medium frequency of an RF bandpass filter by determining and interpolating in relation to medium frequencies at and offsets from a nominal carrier frequency 失效
    通过相对于标称载波频率处的中频和偏移来确定和内插RF带通滤波器的中频的方法

    公开(公告)号:US5448769A

    公开(公告)日:1995-09-05

    申请号:US150132

    申请日:1993-11-30

    申请人: Arto Jantti

    发明人: Arto Jantti

    CPC分类号: H03J1/0075 H03H7/468

    摘要: A method for tuning an RF bandpass filter, especially a combiner filter (10.sub.1, 10.sub.2. . . 10.sub.n) belonging to a GSM system, in which an RF signal having a certain nominal carrier frequency (f.sub.c) is inputted into the RF bandpass filter and a medium frequency of a pass band of the RF bandpass filter is tuned depending on an RF power propagating through the bandpass filter or on an RF power reflected from an input of the bandpass filter. For an easier tuning of the filter and for a tuning accuracy better than before, (a) a carrier is modulated by a signal causing a first predetermined offset (+.DELTA.f), of the carrier frequency, (b) a medium frequency, at which the power propagating through the filter is at the maximum or the power reflected from the input of the filter is at the minimum, is searched for for the bandpass filter, (c) the first medium frequency obtained at stage (b) is stored, (d) the carrier is modulated by a signal causing a second predetermined offset (-.DELTA.f) of the carrier frequency, (e) a medium frequency, at which the power propagating through the filter is at the maximum or the power reflected from the input of the filter is at the minimum, is searched for for the bandpass filter, (f) the second medium frequency obtained at stage (e) is stored, and (g) the filter is tuned by tuning its medium frequency to a value determined on the basis of the frequency values obtained at stages (c) and (f).

    摘要翻译: PCT No.PCT / FI93 / 00128 Sec。 371日期:1993年11月30日 102(e)日期1993年11月30日PCT 1993年3月30日PCT公布。 公开号WO93 / 20616 PCT 日期:1993年10月14日。一种用于调谐RF带通滤波器,特别是属于GSM系统的组合器滤波器(101,102,10.2n)的方法,其中具有特定标称载波频率(fc)的RF信号是 输入到RF带通滤波器中,并且根据通过带通滤波器传播的RF功率或从带通滤波器的输入反射的RF功率来调整RF带通滤波器的通带的中频。 为了更容易地对滤波器进行调谐并且比以前更好地调谐调谐精度,(a)通过信号调制载波,该信号导致载波频率的第一预定偏移(+ DELTA f),(b)中频 通过滤波器传播的功率处于最大或从滤波器的输入反射的功率为最小,搜索带通滤波器,(c)存储在阶段(b)获得的第一中频, (d)通过导致载波频率的第二预定偏移( - DELTA f)的信号来调制载波,(e)中频通过滤波器传播的功率处于最大值或从该频率反射的功率 滤波器的输入为最小,搜索带通滤波器,(f)存储在阶段(e)处获得的第二中频,并且(g)通过将其中频调谐到确定的值来调谐滤波器 基于在阶段(c)和(f)获得的频率值。

    Direct mode repeater in a mobile radio system
    5.
    发明授权
    Direct mode repeater in a mobile radio system 失效
    直接模式转发器在移动无线电系统中

    公开(公告)号:US6052557A

    公开(公告)日:2000-04-18

    申请号:US704511

    申请日:1996-09-12

    IPC分类号: H04B7/26 H04W84/08 H04B17/02

    CPC分类号: H04W84/08 H04B7/15557

    摘要: A direct mode repeater for forwarding traffic between mobile stations communicating on a direct mode channel, includes a transceiver unit for forwarding radio messages between mobile stations communicating on a direct mode channel, and a control unit for controlling the operation of the repeater and for directing the transceiver unit to the direct mode channel. In order to prevent simultaneous transmission of several repeaters on the same direct mode channel. The transmission on the direct mode channel of the repeater that forwards radio messages on the direct mode channel contains at desired intervals the identifier of the repeater, the identifier indicating that the repeater forwards traffic on the direct mode channel. The the repeater is arranged to monitor the direct mode channel as the repeater is seeking to switch onto the direct mode channel, and to switch onto the direct mode channel only if no identifier from any other repeater has occurred on the direct mode channel during a predetermined monitoring period.

    摘要翻译: PCT No.PCT / FI96 / 00025 Sec。 371日期:1996年9月12日 102(e)1996年9月12日PCT PCT 1996年1月11日PCT公布。 WO96 / 22001 PCT出版物 日期1996年7月18日用于在直接模式信道上通信的移动站之间转发业务的直接模式转发器包括:用于在直接模式信道上通信的移动站之间转发无线电消息的收发器单元和用于控制直接模式信道的操作的控制单元 中继器,并用于将收发器单元引导到直接模式信道。 为了防止在同一直接模式信道上同时传输多个中继器。 在直接模式信道上转发无线电消息的中继器的直接模式信道上的传输以期望的间隔包含中继器的标识符,该标识符指示中继器在直接模式信道上转发业务。 中继器被布置成在中继器正在寻求切换到直接模式信道时监视直接模式信道,并且只有在预定的直接模式信道上没有在直接模式信道上发生来自任何其他中继器的标识符时才切换到直接模式信道 监测期。

    Increasing the capacity of a cellular radio network
    6.
    发明授权
    Increasing the capacity of a cellular radio network 失效
    增加蜂窝无线电网络的容量

    公开(公告)号:US6091955A

    公开(公告)日:2000-07-18

    申请号:US849711

    申请日:1997-06-12

    摘要: A cellular radio network and a method for increasing traffic carrying capacity in a cellular network in which the operating frequency spectrum of the cellular network has been divided so that typically both regular frequencies and super-reuse frequencies are employed in each cell. The regular frequencies use a conventional frequency reuse pattern to provide seamless overall coverage (overlay). A very tight frequency reuse pattern is used for the super-reuse frequencies to provide additional capacity (underlay). The cellular network controls the division of traffic into regular and super-reuse frequencies by radio resource allocation at the call set-up phase and later on during the call by handover procedure. The cellular network continuously monitors the downlink co-channel interference of each super-reuse frequency in the cell separately for each ongoing call. The call is handed over from a regular frequency to a super-reuse frequency when the co-channel interference level on the super-reuse frequency is sufficiently low. When the co-channel interference level on the super-reuse frequency deteriorates, the call is handed over from the super-reuse frequency back to the regular frequency.

    摘要翻译: PCT No.PCT / FI96 / 00540 Sec。 371日期:1997年6月12日 102(e)1997年6月12日PCT PCT 1996年10月11日PCT公布。 出版物WO97 / 14260 PCT 日期1997年04月17日蜂窝无线电网络和蜂窝网络中增加业务承载能力的方法,其中蜂窝网络的工作频谱已被划分,使得通常在每个小区中采用常规频率和超重用频率 。 常规频率使用传统的频率复用模式来提供无缝的整体覆盖(覆盖)。 非常紧密的频率复用模式用于超重用频率以提供额外的容量(底层)。 蜂窝网络通过在呼叫建立阶段的无线电资源分配以及在通过切换过程的呼叫期间控制将业务划分为常规和超重用频率。 蜂窝网络对于每个正在进行的呼叫,分别连续地监视小区中每个超重用频率的下行链路同信道干扰。 当超重用频率上的同信道干扰电平足够低时,呼叫从常规频率切换到超重用频率。 当超重用频率上的同频道干扰电平恶化时,呼叫从超重用频率切换回正常频率。

    Method for comparing attribute values of controllable object expressions
in a network element
    7.
    发明授权
    Method for comparing attribute values of controllable object expressions in a network element 失效
    用于比较网元中可控对象表达的属性值的方法

    公开(公告)号:US5941978A

    公开(公告)日:1999-08-24

    申请号:US860560

    申请日:1997-06-30

    申请人: Olli Finni

    发明人: Olli Finni

    IPC分类号: H04Q3/00 G06F15/173

    CPC分类号: H04Q3/0062 H04Q2213/13516

    摘要: A method for selecting a target group for an operation applied to a network element (NE) of a communication network includes (a) receiving from a network management element information on the operation and on the first target group (S), which is a group of object instances contained in the memory of the network element, and as comparison criteria of object instance attributes, the criteria containing the reference values, (b) comparing the attribute values of object instances belonging to the first target group to said reference values, and (c) selecting the final target group from among those object instances in the first target group (S) that have attributes fulfilling the received comparison criteria. To achieve a general-purpose method, a comparison between the attributes of a single object instance is carried out by (i) reading a semantic data which has been prestored in the network element memory, and which is associated with the attribute, (ii) searching the associated attribute value of the object instance from the network element, and (iii) comparing the attribute value to the received reference value by utilizing the semantic data read.

    摘要翻译: PCT No.PCT / FI95 / 00719 Sec。 371日期:1997年6月30日 102(e)日期1997年6月30日PCT 1995年12月29日PCT PCT。 出版物WO96 / 21324 日期1996年7月11日一种用于选择应用于通信网络的网元(NE)的操作的目标组的方法包括:(a)从网络管理元件接收关于操作的信息和关于第一目标组(S) ,其是包含在网元的存储器中的一组对象实例,以及对象实例属性的比较标准,包含参考值的标准,(b)将属于第一目标组的对象实例的属性值与 所述参考值,以及(c)从具有满足接收到的比较标准的属性的第一目标组(S)中的那些对象实例中选择最终目标组。 为了实现通用方法,通过(i)读取已经存储在网元存储器中并与该属性相关联的语义数据来执行单个对象实例的属性之间的比较,(ii) 从所述网元搜索所述对象实例的关联属性值,以及(iii)通过利用所读取的语义数据来比较所述属性值与所接收的参考值。

    Method for allocating radio channels in a quasi-transmission-trunked
mobile communication system
    8.
    发明授权
    Method for allocating radio channels in a quasi-transmission-trunked mobile communication system 失效
    在准传输集群移动通信系统中分配无线电信道的方法

    公开(公告)号:US5745853A

    公开(公告)日:1998-04-28

    申请号:US602837

    申请日:1996-02-27

    申请人: Leo Hippelainen

    发明人: Leo Hippelainen

    IPC分类号: H04W84/08 H04Q7/20 H04B7/00

    摘要: A method for allocating radio channels in a quasi-transmission trunked mobile communication system including base stations and a first mobile station communicating with the base stations using radio channels, and at least one other mobile station requiring a radio channel. In the method, a radio channel is kept reserved for such a call in which the first mobile station is participating. This radio channel is allocated for the first mobile station for the duration of its call transaction. The first mobile station terminates and its call transaction, the radio channel is kept reserved for a predetermined time for the call. For accelerating allocation of new call transactions, it is checked whether the radio channel may still be kept reserved for the call. If the radio channel may still be kept reserved for the call, time-out time (T.sub.s) for a call transaction depending on the traffic load of the radio channels is calculated, and the channel is kept reserved for the time corresponding to the calculated time-out time, subsequent to which the radio channel is released. If the radio channel may no longer be kept reserved for the call, the radio channel is released.

    摘要翻译: PCT No.PCT / FI95 / 00368 Sec。 371日期1996年2月27日 102(e)日期1996年2月27日PCT归档1995年6月26日PCT公布。 出版物WO96 / 日期:1996年1月4日一种包括基站和使用无线电信道与基站通信的第一移动站的准传输集群移动通信系统中的无线电信道的分配方法,以及需要无线电信道的至少一个其他移动台。 在该方法中,为第一移动台正在参与的呼叫保留无线信道。 在其呼叫交易期间,该无线电信道被分配给第一移动台。 第一移动台终止并且其呼叫交易,无线电信道保留预定时间用于呼叫。 为了加速新呼叫交易的分配,检查无线电信道是否仍然可以保留为呼叫保留。 如果无线电信道仍然可以保留用于呼叫,则计算出根据无线电信道的业务负载的呼叫交易的超时时间(Ts),并且在与所计算的时间相对应的时间内保留该信道 - 随后无线电频道被释放的时间。 如果无线电信道可能不再保留用于呼叫,则无线电信道被释放。

    Dielectric resonator structure having resonator displaceable between
support plates for adjusting resonance frequency
    9.
    发明授权
    Dielectric resonator structure having resonator displaceable between support plates for adjusting resonance frequency 失效
    介质谐振器结构,其谐振器可在支撑板之间移动以调节谐振频率

    公开(公告)号:US5352997A

    公开(公告)日:1994-10-04

    申请号:US960396

    申请日:1993-01-07

    申请人: Veli-Matti Sarkka

    发明人: Veli-Matti Sarkka

    IPC分类号: H01P7/10

    CPC分类号: H01P7/10

    摘要: A dielectric resonator structure includes a resonator made of a dielectric material. The resonator is supported between two support plates and can be displaced at least in one direction between the plates. At least one of the plates is made of a dielectric material so that the amount of the dielectric material of the support plate varies in the direction of displacement of the resonator.

    摘要翻译: PCT No.PCT / FI92 / 00144 Sec。 371日期:1993年1月7日 102(e)日期1993年1月7日PCT提交日期为1992年5月5日PCT公布。 第WO92 / 20115A PCT公开 日期:1992年11月12日。介质谐振器结构包括由介电材料制成的谐振器。 谐振器支撑在两个支撑板之间,并且可以至少在板之间的一个方向上移位。 至少一个板由介电材料制成,使得支撑板的电介质材料的量在谐振器的位移方向上变化。

    Method and system for controlling statistically multiplexed ATM bus
    10.
    发明授权
    Method and system for controlling statistically multiplexed ATM bus 失效
    控制统计复用ATM总线的方法和系统

    公开(公告)号:US5841774A

    公开(公告)日:1998-11-24

    申请号:US676202

    申请日:1996-07-16

    摘要: A method and system for controlling a statistically multiplexed ATM bus, to the bus being connected a bus controller and interface units for transmission of packets, i.e. cells, over the bus, in which, having detected, for each cell to be transmitted to an ATM bus, the address of the interface unit participating in the transmission, the bus controller sets the address on an address bus of the ATM bus, thereby activating transmission of the cell from the bus controller to the interface unit, or vice versa, over a data bus of the ATM bus. During the transmission of the cell, the bus controller fetches the next interface unit address for transmission of the next cell from or to the interface unit concerned.

    摘要翻译: PCT No.PCT / FI95 / 00012 Sec。 371日期:1996年7月16日 102(e)日期1996年7月16日PCT提交1995年1月13日PCT公布。 WO95 / 19674 PCT公开号 日期1995年7月20日一种用于控制统计复用的ATM总线的方法和系统,连接到总线控制器的总线和用于传输总线上的分组即单元的接口单元,其中,已经检测到每个单元 发送到ATM总线,参与传输的接口单元的地址,总线控制器在ATM总线的地址总线上设置地址,从而激活小区从总线控制器到接口单元的传输,或者是副 在ATM总线的数据总线上。 在小区传输期间,总线控制器从相关的接口单元提取下一个单元地址以发送下一个单元。