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    • 12. 发明申请
    • A MULTIPLE ACCESS DIGITAL TRANSMISSION SYSTEM AND A RADIO BASE STATION AND A RECEIVER FOR USE IN SUCH A SYSTEM
    • 多个访问数字传输系统和无线电台站以及在这种系统中使用的接收机
    • WO1995024086A2
    • 1995-09-08
    • PCT/IB1995000115
    • 1995-02-23
    • PHILIPS ELECTRONICS N.V.PHILIPS NORDEN ABPHILIPS PATENTVERWALTUNG GMBHTHIELECKE, JornGRANZOW, Wolfgang
    • PHILIPS ELECTRONICS N.V.PHILIPS NORDEN ABPHILIPS PATENTVERWALTUNG GMBH
    • H04L00/00
    • H04B1/71072H04B1/7107H04B1/711
    • In CDMA systems (1) with time-variant multipath transmission channels, such as mobile radio systems, receivers are used that apply multipath diversity techniques so as to counteract fading. In a known CDMA system, L-tap RAKE receivers (20) are used of which taps are adjusted on the basis of channel estimation means (61) that estimates multipath delays ( tau 11, ..., tau 1L; tau N1, ..., tau NL) from the received signal (y), i.e. searchers are arranged for finding paths. In such a system inter-user and inter-path interference is not taken into account. As a result, it is difficult to detect yet unresolved paths. Especially, it is difficult or even impossible to detect weak users in a strong user environment. A CDMA system (1) is proposed comprising channel estimation means (64) having a channel model for estimating (ŷ) the received signal (y). An interference reduced signal (e) is formed from the received signal (y) and the estimated received signal (ŷ) and is applied to the searchers. In an embodiment the channel model is an adaptive linear combiner (70 ... 80) combining re-spread decision feedback signals (b) weighted by estimated complex amplitudes (A) of resolved paths. Because in the interference reduced signal strong users are no longer present, it is easier to find yet unresolved paths. From the interference reduced signal (e) weak users can be easily detected, thus increasing system capacity.
    • 在具有诸如移动无线电系统的时变多径传输信道的CDMA系统(1)中,使用接收机来应用多径分集技术以抵消衰落。 在已知的CDMA系统中,使用L抽头RAKE接收器(20),其基于估计多路径延迟(τ11,...,τ1 L;τN 1,...)的信道估计装置(61)调整哪些抽头。 ..,tau NL),即搜索者被安排用于寻找路径。 在这种系统中,不考虑用户间和路径间干扰。 因此,很难发现尚未解决的路径。 特别是,在强大的用户环境中检测弱用户是困难甚至不可能的。 提出了一种CDMA系统(1),其包括具有用于估计(ŷ)接收信号(y)的信道模型的信道估计装置(64)。 从接收信号(y)和估计的接收信号(ŷ)形成干扰消除信号(e),并将其应用于搜索者。 在一个实施例中,信道模型是组合由分解路径的估计复幅度(A)加权的再扩展判定反馈信号(b)的自适应线性组合器(70 ... 80)。 因为在干扰减少的信号强大的用户不再存在,更容易找到尚未解决的路径。 从干扰减少信号(e)可以轻易检测到弱用户,从而提高系统容量。
    • 16. 发明申请
    • SIGNAL PROCESSOR
    • 信号处理器
    • WO1997050030A1
    • 1997-12-31
    • PCT/IB1997000760
    • 1997-06-23
    • PHILIPS ELECTRONICS N.V.PHILIPS PATENTVERWALTUNG GMBHPHILIPS NORDEN ABBAUER, HaraldLORENZ, DietmarMEYER, PeterWOUDSMA, Roberto
    • PHILIPS ELECTRONICS N.V.PHILIPS PATENTVERWALTUNG GMBHPHILIPS NORDEN AB
    • G06F07/544
    • G06F15/7857
    • The invention relates to a signal processor comprising at least one data source (3), a plurality of input registers (11, 12, 13, 14, ...) whose inputs are coupled to the data source by data buses (9, 10), a plurality of multipliers (19, 20; 71, 72, ...) for multiplying data buffered in the input registers, and processing means for processing products (p0, p1, ...), generated by the multipliers by arithmetic and/or logic operations. For achieving enhanced flexibility of the signal processor and increasing the number of possible applications, there is proposed that multiplexing means (15, 16, 17, 18; 70) are provided which are used for coupling the multipliers to a respective part of the input registers in dependence on control signals (I, II, III, IV). Such a signal processor comprising parallel data processing branches is preferably used in mobile radio technology. Further fields of application are, for example, audio, video, medical and automotive technology, ISDN systems, digital radio.
    • 本发明涉及一种信号处理器,其包括至少一个数据源(3),多个输入寄存器(11,12,13,14,...),其输入通过数据总线(9,10)耦合到数据源 ),用于乘以在输入寄存器中缓冲的数据的多个乘法器(19,20; 71,72,...),以及用于通过算术处理由乘法器产生的乘积(p0,p1,...)的处理装置 和/或逻辑运算。 为了实现信号处理器的增强的灵活性并增加可能的应用的数量,提出了提供多路复用装置(15,16,17,18; 70),用于将乘法器耦合到输入寄存器的相应部分 依赖于控制信号(I,II,III,IV)。 包括并行数据处理分支的这种信号处理器优选地用于移动无线电技术中。 其他应用领域是例如音频,视频,医疗和汽车技术,ISDN系统,数字无线电。
    • 17. 发明申请
    • TELECOMMUNICATION NETWORK WITH LEAST COST ROUTING
    • 具有最低成本路由的电信网络
    • WO1997039592A1
    • 1997-10-23
    • PCT/IB1997000405
    • 1997-04-14
    • PHILIPS ELECTRONICS N.V.PHILIPS PATENTVERWALTUNG GMBHPHILIPS NORDEN ABSCHREYER, OliverMAASS, HenningGAPPISCH, Holger
    • PHILIPS ELECTRONICS N.V.PHILIPS PATENTVERWALTUNG GMBHPHILIPS NORDEN AB
    • H04Q03/66
    • H04Q3/62H04M7/009
    • The invention relates to a telecommunication network (1, 19, 29) having a route allocation based on switching data. The switching takes place on the basis of stored switching data which describe the most favorable route determined on the basis of definable functions. More particularly, the switching data may be determined on the basis of charges (LCR data). For minimizing the arising charges for users of the telecommunication network, for example, via the LCR functions, whose locations are at least partially wide apart, there is proposed that a plurality of mutually coupled private branch exchanges (2-1, 2-2, ... 2-n, 21, 24, 30, 31, 32) are provided to which are assigned respective storage means (6-1, 6-2, ... 6-n) for storing switching data and which include processing means (7-1, 7-2, ... 7-n) for determining the most favorable route to a subscriber terminal (22, 37, 52) positioned inside or outside the telecommunication network (1) in dependence on the stored switching data, while an outgoing route of a private branch exchange (21, 30) leads through one or more of the other private branch exchanges (24, 31, 32) and/or through one or more other telecommunication networks (26, 38, 51, 52).
    • 本发明涉及具有基于切换数据的路由分配的电信网络(1,19,29)。 切换是基于存储的切换数据进行的,该切换数据描述了基于可定义的功能确定的最有利的路由。 更具体地,切换数据可以基于电荷(LCR数据)来确定。 为了最小化电信网络用户产生的费用,例如,经由位置至少部分宽的LCR功能,提出了多个相互耦合的专用分支交换机(2-1,2-2, ... 2-n,21,24,30,31,32)被分配有用于存储切换数据的相应的存储装置(6-1,6-2,... 6-n),其包括处理 用于根据存储的切换确定到位于电信网络(1)内部或外部的用户终端(22,37,52)的最佳路由的装置(7-1,7-2,... 7-n) 数据,而专用小交换机(21,30)的输出路由通过一个或多个其他专用分支交换机(24,31,32)和/或通过一个或多个其他电信网络(26,38,51) ,52)。
    • 18. 发明申请
    • EQUALIZER WITH A SEQUENCE ESTIMATION METHOD WITH STATE REDUCTION FOR A RECEIVER IN A DIGITAL TRANSMISSION SYSTEM
    • 具有序列估计方法的平均化与数字传输系统中的接收器的减少状态
    • WO1997039550A2
    • 1997-10-23
    • PCT/IB1997000361
    • 1997-04-07
    • PHILIPS ELECTRONICS N.V.PHILIPS PATENTVERWALTUNG GMBHPHILIPS NORDEN ABMEYER, RaimundFISCHER, RobertGERSTACKER, WolfgangHUBER, JohannesSCHRAMM, Peter
    • PHILIPS ELECTRONICS N.V.PHILIPS PATENTVERWALTUNG GMBHPHILIPS NORDEN AB
    • H04L01/00
    • H04L25/03178H04L25/03261
    • The invention relates to a digital transmission system comprising a receiver, which receiver includes an equalizer for estimating transmitted binary symbols from a sequence of sample values (6) of a received signal distorted by a transmission channel, by means of a reduced-state sequence estimation method or reduced-state single symbol estimation method (11). To provide a receiver featuring a high reliability combined with a clear state reduction of the estimation method, a minimum-phase substitute system (14) distorts the sample values received after a known training sequence (27) in the sequence of sample values (6) in the received order, and a maximum-phase substitute system (14) distorts the sample values (6) received before a known training sequence (27) and to be processed in reverse order for forming an estimate (11) for a received signal. The number of coefficients of the impulse response which are reduced by the state reduction and used for the estimation, render the estimation inaccurate. In a minimum-phase system the first coefficients of the impulse response of the substitute system have maximum energy with an unchanged frequency response. When these coefficients transformed in this manner are used for the state reduction, nearly all the information is used for the estimation. This achieves a high reliability of the sequence estimation as is achieved when all the states are used.
    • 本发明涉及一种包括接收机的数字传输系统,该接收机包括均衡器,用于通过减少状态序列估计从传输信道失真的接收信号的采样值序列(6)中估计发送的二进制符号 方法或简化状态单符号估计方法(11)。 为了提供具有高可靠性的接收机以及估计方法的清晰状态减少,最小相位替代系统(14)使得在样本值(6)的序列中的已知训练序列(27)之后接收的样本值变形, 并且最大相位替代系统(14)使在已知训练序列(27)之前接收的采样值(6)变形,并以相反的顺序进行处理,以形成接收信号的估计(11)。 通过状态减少而减少并用于估计的脉冲响应的系数数使估计不准确。 在最小相位系统中,替代系统的脉冲响应的第一系数具有不变频率响应的最大能量。 当以这种方式变换的这些系数用于状态减少时,几乎所有信息都用于估计。 这实现了当使用所有状态时实现的序列估计的高可靠性。