Reception method, and a receiver
    21.
    发明授权
    Reception method, and a receiver 失效
    接收方式和接收方

    公开(公告)号:US5933423A

    公开(公告)日:1999-08-03

    申请号:US602773

    申请日:1996-04-19

    CPC分类号: H04B1/7107

    摘要: A reception method and a receiver in a cellular radio system, the receiver comprising means for measuring the power level of each received signal. To detect the received signal in an advantageous manner, the receiver of the invention comprises means for dividing the received signals into several groups having at least two signals each, and means for detecting the signals in each groups from the received transmission simultaneously.

    摘要翻译: PCT No.PCT / FI95 / 00384 Sec。 371日期:1996年04月19日 102(e)日期1996年4月19日PCT提交1995年7月3日PCT公布。 出版物WO96 / 01544 日期1996年1月18日在蜂窝无线电系统中的接收方法和接收机,接收机包括用于测量每个接收信号的功率电平的装置。 为了以有利的方式检测接收到的信号,本发明的接收机包括用于将接收到的信号分成几组的装置,每组具有至少两个信号,以及用于同时从接收的传输中检测每组中的信号的装置。

    CDMA reception method and a CDMA receiver which calculates an estimate
from samples for each desired signal during a monitoring period
    22.
    发明授权
    CDMA reception method and a CDMA receiver which calculates an estimate from samples for each desired signal during a monitoring period 失效
    CDMA接收方法和CDMA接收机,其在监视期间计算每个期望信号的样本的估计

    公开(公告)号:US5930289A

    公开(公告)日:1999-07-27

    申请号:US809532

    申请日:1997-03-12

    IPC分类号: H04B1/707 H04B17/00 H04B15/00

    CPC分类号: H04B1/7105 H04B17/309

    摘要: The invention relates to a reception method and a receiver comprising means where a received signal is sampled, and means where the mutual delays of the transmissions contained in the signal and the strengths of the transmissions are measured from the received signal, said transmissions originating in one or more transmitters. In order to ensure reception of high quality, the receiver according to the invention comprises means, the input of which, is the sampled signal, and in which an estimate is calculated from the samples for each desired transmission on the basis of all samples which have arrived during a certain monitoring period, and that whenever a new sample arrives at the input of the means, the means updates the calculated estimates on the basis of the new sample.

    摘要翻译: PCT No.PCT / FI95 / 00492 Sec。 371日期1997年3月12日 102(e)1997年3月12日PCT PCT 1995年9月11日PCT公布。 公开号WO96 / 08881 日期1996年3月21日本发明涉及一种接收方法和接收机,包括对接收信号进行采样的装置,以及其中从接收信号测量信号中包含的传输和传输强度的相互延迟的装置, 所述传输源自一个或多个发射机。 为了确保高质量的接收,根据本发明的接收机包括其输入是采样信号的装置,并且其中根据具有所有样本的每个期望传输的样本计算估计值 在某个监测期间到达,每当一个新的样本到达手段的输入时,该手段就会根据新的样本更新计算的估计值。

    Power control method in a cellular communication system, and a receiver
    23.
    发明授权
    Power control method in a cellular communication system, and a receiver 失效
    蜂窝通信系统中的功率控制方法和接收机

    公开(公告)号:US5898740A

    公开(公告)日:1999-04-27

    申请号:US793259

    申请日:1997-02-21

    CPC分类号: H04W52/24

    摘要: In a method for controlling transmission power in a cellular communication system which utilizes a technique for canceling multiple access interference, and in which a receiver controls the transmission power of a transmitter on the basis of a received signal, power control is carried out on the received signal after the received signal has been subjected to interference cancellation.

    摘要翻译: PCT No.PCT / FI95 / 00450 Sec。 371日期1997年2月21日 102(e)1997年2月21日PCT PCT 1995年8月23日PCT公布。 公开号WO96 / 07246 日期:1996年3月7日在一种利用消除多址干扰的技术的蜂窝通信系统中控制发射功率的方法中,接收机根据接收信号来控制发射机的发射功率,功率控制为 在接收到的信号已经被干扰消除之后对接收到的信号执行。

    Method for interference cancellation in a cellular CDMA network
    24.
    发明授权
    Method for interference cancellation in a cellular CDMA network 失效
    蜂窝CDMA网络中的干扰消除方法

    公开(公告)号:US5862124A

    公开(公告)日:1999-01-19

    申请号:US714161

    申请日:1996-11-22

    摘要: Interference in a cellular CDMA network due to mobile stations causing multiple use of one carrier frequency in neighboring cells is cancelled. A hard handover is implemented by defining the phase of a spread spectrum code in a signal transmitted from a base station to a mobile followed by measurement of signal strength in the mobile. Thereafter, the result is reported to the CDMA network, inferring whether the mobile interferes with the base station of the neighboring cells. If interference is present, the surrounding base stations are informed about the mobile station channel used, and this information is taken into account in the receivers of signals transmitted by other mobiles within the cell. The measurement results of the mobile are provided as initial values to the parameters required by the initialization of the interference cancellation routines performed in a neighboring base station. In another embodiment, it is decided whether the mobile station has to be monitored at the neighboring base stations by comparing the measurement results with a predetermined threshold value.

    摘要翻译: PCT No.PCT / FI95 / 00146 Sec。 371日期:1996年11月22日 102(e)日期1996年11月22日PCT 1995年3月20日PCT公布。 出版物WO95 / 26593 日期1995年10月5日由于在相邻小区中导致多个使用一个载波频率的移动站而导致的蜂窝CDMA网络中的干扰被取消。 通过在从基站发送到移动站的信号中定义扩频码的相位,随后在移动台中测量信号强度来实现硬切换。 此后,将结果报告给CDMA网络,推断移动台是否干扰相邻小区的基站。 如果存在干扰,则周围的基站被通知关于所使用的移动站信道,并且该信息在接收机中被考虑到由小区内的其他移动台发送的信号。 将移动台的测量结果作为在相邻基站中执行的干扰消除例程的初始化所需的参数的初始值提供。 在另一实施例中,通过将测量结果与预定阈值进行比较来确定是否必须在相邻基站处监视移动台。

    Receiving method and receiver
    26.
    发明授权
    Receiving method and receiver 失效
    接收方式和接收方

    公开(公告)号:US6011812A

    公开(公告)日:2000-01-04

    申请号:US632416

    申请日:1996-04-24

    CPC分类号: H04B1/71052

    摘要: A receiving method and a receiver in a data transmission system in which CDMA multiple access is applied, the receiver having a decorrelating detector. In order that the receiver can function effectively both in the event of multiuser interference and on a multipath channel, the decorrelating detector of the receiver has separate equalizers for equalizing the effect of the multipath channel in the received signal, and filters matched with the codes contained in the received signal, and multipliers for multiplying the received signal by the inverse matrix of the cross-correlation matrix of the codes contained in the received signal.

    摘要翻译: PCT No.PCT / FI95 / 00451 Sec。 371日期:1996年4月24日 102(e)日期1996年4月24日PCT提交1995年8月23日PCT公布。 公开号WO96 / 06487 日期1996年2月29日在应用CDMA多址的数据传输系统中的接收方法和接收机,该接收机具有解相关检测器。 为了使接收机在多用户干扰的情况下和多路径信道上都能有效地发挥作用,接收机的去相关检测器具有分离的均衡器,用于均衡接收信号中的多路径信道的影响,以及与包含的码相匹配的滤波器 以及用于将接收信号乘以包含在接收信号中的代码的互相关矩阵的逆矩阵的乘法器。

    Method for estimating a channel and a receiver
    27.
    发明授权
    Method for estimating a channel and a receiver 失效
    用于估计信道和接收机的方法

    公开(公告)号:US5905946A

    公开(公告)日:1999-05-18

    申请号:US912418

    申请日:1997-08-18

    CPC分类号: H04B1/7107

    摘要: A method for estimating a channel in a receiver of a cellular radio system, and a receiver in a cellular radio system, the receiver comprising means (22) for subjecting the received signal to elimination of multiple access interference. To obtain good channel estimates, the receiver of the invention comprises means (23) for computing channel estimates from a signal that has undergone elimination of multiple access interference. (FIG. 2)

    摘要翻译: 一种用于估计蜂窝无线电系统的接收机中的信道的方法和蜂窝无线电系统中的接收机,所述接收机包括用于对所接收的信号进行多址接入干扰的消除的装置(22)。 为了获得良好的信道估计,本发明的接收机包括用于从已经消除多址干扰的信号计算信道估计的装置(23)。 (图2)

    Method and circuit arrangement for processing received signal
    28.
    发明授权
    Method and circuit arrangement for processing received signal 失效
    用于处理接收信号的方法和电路装置

    公开(公告)号:US5812608A

    公开(公告)日:1998-09-22

    申请号:US642339

    申请日:1996-05-03

    摘要: The invention is related to a method and circuit arrangement for processing a received signal in a variable symbol rate system, such as a digital television system. In the method and arrangement according to the system, a received signal is sampled at a fixed sampling frequency (f.sub.f) that is higher than the symbol frequency of any one of the received signals. The resulting sample sequence is converted to another sample sequence the sampling frequency of which equals the symbol frequency (f.sub.i) of the received signal or its integer multiple. Then the samples are filtered (8) and signal value decisions are made (9) for the filtered samples. Conversion of the sampling frequency is advantageously performed using a so-called modified Farrow-type fractional delay filter (6) which is controlled using a control signal proportional to the delay of each sample. Using the method and arrangement according to the invention it is possible to process received signals the symbol frequencies of which are arbitrary within set limits.

    摘要翻译: 本发明涉及用于处理诸如数字电视系统的可变符号率系统中的接收信号的方法和电路装置。 在根据系统的方法和装置中,以比接收信号中的任一个的符号频率高的固定采样频率(ff)对接收信号进行采样。 所得到的采样序列被转换为其采样频率等于接收信号的符号频率(fi)或其整数倍的另一采样序列。 然后对样本进行滤波(8),并对滤波后的样本做出信号值决定(9)。 使用所谓的修改的Farrow型小数分数延迟滤波器(6)有利地进行采样频率的转换,其使用与每个样本的延迟成比例的控制信号来控制。 使用根据本发明的方法和装置,可以处理其设定限制内的符号频率是任意的接收信号。