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    • 2. 发明申请
    • METHOD FOR CODING DATA AND DATA CODING DEVICE
    • 编码数据和数据编码设备的方法
    • WO2008138807A1
    • 2008-11-20
    • PCT/EP2008/055542
    • 2008-05-06
    • NOKIA SIEMENS NETWORKS OYCOSTA, ElenaFRANK, TobiasKLEIN, AnjaSOHL, Anja
    • COSTA, ElenaFRANK, TobiasKLEIN, AnjaSOHL, Anja
    • H04L27/26
    • H04L27/2614H04L5/0007H04L5/0044H04L5/0048H04L25/0232
    • The invention relates to a Method for coding data to be transmitted in a transmitted signal, wherein the transmitted signal comprises multiple subcarriers with orthogonal or quasi-orthogonal frequencies, and wherein at least a subset of a number Q of subcarriers is assigned to a specific user, said method comprising the steps of: mapping data symbols relating to the specific user onto at least a part of the elements of a vector with a number of at most Q, applying a unitary transform to the vector with the number of at most Q elements and mapping the elements of the transformed vector to the subcarriers assigned to the specific user. In order to achieve a low Peak-to-Average-Power-Ratio, it is proposed that pilot symbols for performing a channel estimation are mapped to a part of the elements of said vector with at most Q elements before applying said a unitary transform to the vector with the number of Q elements.
    • 本发明涉及一种用于编码要在发送信号中发送的数据的方法,其中所发送的信号包括具有正交或准正交频率的多个子载波,并且其中子载波数量Q的至少一个子集被分配给特定用户 所述方法包括以下步骤:将与所述特定用户相关的数据符号映射到具有多于Q个的向量的至少一部分元素,对所述向量应用最多为Q个元素的一维变换 以及将所述变换的矢量的元素映射到分配给所述特定用户的子载波。 为了实现较低的峰值平均功率比,提出用于执行信道估计的导频符号在应用所述单一变换之前被映射到具有最多Q个元素的所述向量的元素的一部分 矢量与Q元素的数量。
    • 9. 发明申请
    • METHOD FOR ADAPTING DATA RATES IN UNIVERSAL MOBILE TELEPHONE SYSTEMS (UMTS)
    • 的程序对通用移动电话系统数据速率调整(UMTS)
    • WO0021229A3
    • 2000-06-22
    • PCT/DE9903182
    • 1999-10-01
    • SIEMENS AGSOMMER VOLKERKOEHN REINHARDULRICH THOMASKRAUSE JOERNKLEIN ANJA
    • SOMMER VOLKERKOEHN REINHARDULRICH THOMASKRAUSE JOERNKLEIN ANJA
    • H04J13/00H04B7/26H04L1/00H04W28/18H04L1/08
    • H04W28/18H04B7/2646H04L1/0002
    • According to the invention, a service-specific static rate adaptation factor that controls a service-specific quality of service is determined in a manner already known per se. A dynamic rate-oriented rate adaptation factor is determined for a link, whereby said factor adapts the hypothetical volume of data to a volume of data that is available in the next frame while taking into account the adaptation of the service-specific data rate that is yet to be performed. It is possible to pass through several optimization loops if said data volume is not rigidly predetermined as a result of a sufficient number of transmission channels and spread factors. A service-specific rate adaptation factor is determined by combining the static rate adaptation factor and the dynamic link-oriented rate adaptation factor, whereupon one single and therefore one-step adaptation of the data rate is carried out. Service data is thus compressed or expanded only once with said service-specific rate adaptation factors and inputted into a frame for transmission. The method is suitable for CDMA transmission methods within a UMTS.
    • 根据本发明,如已经公知的,确定哪个设置服务的特定服务质量的服务特定的静态速率匹配因数。 要连接动态面向连接的速率匹配因数确定适应考虑尚未实现特定于服务的数据速率在数据的下一帧数据的假想量匹配到可用的。 在这里,如果数据量是不固定的,由于足够数目的传输信道的,传播因子几个优化环路可以运行。 服务特定的速率匹配因数由静态速率匹配因数的组合和动态面向连接的速率来确定匹配因子,然后才进行的,唯一的,单级速率匹配。 的服务的数据与这些特定于服务的速率匹配因素仅一次或膨胀并输入到用于传输的帧很沮丧。 该方法适合于在UMTS中的CDMA发送方法。