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    • 4. 发明申请
    • DATA TRANSMISSION METHOD, TRANSMITTER, AND RECEIVER
    • 数据传输方法,发射机和接收机
    • WO1996024206A1
    • 1996-08-08
    • PCT/FI1996000061
    • 1996-01-31
    • NOKIA MOBILE PHONES LTD.HOTTINEN, AriLAAKSO, TimoOJANPERÄ, Tero
    • NOKIA MOBILE PHONES LTD.
    • H04J13/00
    • H04J13/16H04B1/7093H04B1/7103H04B7/264
    • The invention relates to a data transmission method, a transmitter and a receiver in a system which utilizes the CDMA method, in which several users communicate simultaneously on the same frequency band, and in which each user has its own spreading code, and in which the information channel capacity of at least one user differs from the capacity of the other users, the receiver comprising converter means (52) for converting a received transmission into a digital form, and a number of means (61a-61c) for synchronizing and for calculating the characteristic required for a decision from the transmission of each received user. In order to advantageously receive transmissions with multiple data rates or capacities in a receiver according to the invention, said number of means (61a-61c) each comprise a group of correlators (80-83) which may be synchronized with waveforms of different types, and the receiver comprises means (62) for processing said characteristics calculated for different types of waveforms by eliminating the effect of their mutual correlations.
    • 本发明涉及利用CDMA方法的系统中的数据传输方法,发射机和接收机,其中若干用户在同一频带上同时通信,并且每个用户具有其自己的扩展码,并且其中 至少一个用户的信息信道容量与其他用户的容量不同,所述接收机包括用于将所接收的传输转换为数字形式的转换器装置(52)和用于同步和计算的多个装置(61a-61c) 来自每个接收的用户的传输的决定所需的特性。 为了在根据本发明的接收机中有利地接收具有多个数据速率或容量的传输,所述多个装置(61a-61c)各自包括一组相关器(80-83),其可以与不同类型的波形同步, 并且接收机包括用于通过消除其相互关系的影响来处理针对不同类型的波形计算的所述特性的装置(62)。
    • 10. 发明申请
    • A RECEPTION METHOD, AND A RECEIVER
    • 接收方法和接收方
    • WO9608881A2
    • 1996-03-21
    • PCT/FI9500492
    • 1995-09-11
    • NOKIA TELECOMMUNICATIONS OYNOKIA MOBILE PHONES LTDLAAKSO TIMOLILLEBERG JORMA
    • LAAKSO TIMOLILLEBERG JORMA
    • H04B1/707H04B17/00H04B7/005
    • H04B1/7105H04B17/309
    • The invention relates to a reception method and a receiver comprising means (60) where a received signal is sampled, and means (61) 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 (62) the input of which is the sampled signal (64), and in which means (62) 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 (62), the means (62) update the calculated estimates on the basis of the new sample.
    • 本发明涉及包括接收信号被采样的装置(60)的接收方法和接收机,以及装置(61),其中包含在信号中的传输的相互延迟和传输的强度是从接收信号 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(64)的装置(62),并且其中装置(62)根据每个期望传输的样本计算估计值 基于在特定监测期间到达的所有样本,以及每当新样本到达装置(62)的输入时,装置(62)基于新样本更新所计算的估计。