数据传输方法及其装置

    公开(公告)号:CN1373935A

    公开(公告)日:2002-10-09

    申请号:CN00812603.8

    申请日:2000-09-28

    CPC classification number: H04B1/7097 H04B2201/70705 H04J13/0022 H04J13/12

    Abstract: 本发明涉及数据传输方法,其中CDMA编码数据信号以扩展的数据串的数据流的形式在发送机和接收机(RE,E1,…,En)之间传输,其中使用了分级的CDMA码来传输。在第一步骤中,检测接收码中属于母码C(i,j)的数据。在第二步骤中,用生成元对检测的数据进行去扩展。在第三步骤中,如果数据被足够宽地去扩展,则中断检测处理,或否则将用最后去扩展数据一直重复进行第二步骤,直至数据被足够宽地去扩展为止。

    受信装置および伝送レート判定方法
    86.
    发明申请
    受信装置および伝送レート判定方法 审中-公开
    接收设备和传输速率判断方法

    公开(公告)号:WO2005039066A1

    公开(公告)日:2005-04-28

    申请号:PCT/JP2004/015535

    申请日:2004-10-20

    Inventor: 尾田 靖代

    CPC classification number: H04B1/707 H04B2201/70705

    Abstract:  従属チャネルが複数の基準チャネルに従属する場合に、高い信頼度をもって伝送レート判定を行い、受信性能を向上させることができる受信装置を開示する。この装置において、尤度値算出部(301)は、TF判定部(114a)で求まった基準チャネルおよび従属チャネルのTFを用いて各チャネルを復号し、この復号結果の尤度値を算出する。一方、従属グループ調査部(303)は、復調データを調査し、互いに従属関係にある基準チャネルと従属チャネルとを1グループとする。尤度値比較部(304)は、各基準チャネルの尤度値を各グループ同士で比較し、最大尤度値を有するグループの基準チャネルと従属チャネルのTF組み合わせを、真のTF組み合わせとする。TF再判定部(305)は、最大尤度値を有する基準チャネルのTFを用いて他の基準チャネルおよびこれに従属する従属チャネルのTFを再判定する。

    Abstract translation: 公开了一种接收装置,其能够以高可靠性进行传输速率判断,并且当从属信道属于多个参考信道时,提高接收性能。 在该装置中,似然度计算部(301)通过使用TF判定部(114a)获得的参考信道的TF和从属信道来对每个信道进行解码,并计算解码结果的似然值。 另一方面,从属组检查单元(303)检查解码数据,并将依赖关系中的参考信道和从属信道分类为一组。 似然值比较单元(304)比较组之间的各个参考信道的似然值,并将参考信道的TF组合和具有最大似然值的相关信道确定为真TF组合。 TF重新判断单元(305)通过使用具有最大似然值的参考信道的TF来重新判断另一参考信道的TF和其相关信道。

    基地局装置及びパケット伝送方法
    87.
    发明申请
    基地局装置及びパケット伝送方法 审中-公开
    基站设备和分组传输方法

    公开(公告)号:WO2003069805A1

    公开(公告)日:2003-08-21

    申请号:PCT/JP2003/001597

    申请日:2003-02-14

    Abstract: A despreading section (104) outputs a signal representing the number of paths for which despreading is conducted to a likelihood calculating section (108). An fD determining section (107) determines the Doppler frequency (fD) of the fading fluctuation of the propagation path between each communication terminal and the base station device from the despread signal. The likelihood calculating section (108) calculates the likelihood of the reported value transmitted from each communication terminal on the basis of the number of paths for which despreading is carried out and the Doppler frequency. A transmission destination determining section (151) determines a communication terminal to which a downlink high-speed packet is transmitted on the basis of the judgment value which is the product of the reported value by the likelihood. A modulation method determining section (152) determines the coding rate and modulation method of the downlink high-speed packet on the basis of the judgment value. By transmitting a downlink high-speed packet in consideration of the error included in the reported value, the number of retransmissions is reduced, the transmission efficiency is improved, and the system capacity is increased.

    Abstract translation: 解扩部分(104)将表示进行解扩的路径数的信号输出到似然度计算部(108)。 fD判定部(107)从解扩信号中确定各通信终端与基站装置之间的传播路径的衰落波动的多普勒频率(fD)。 似然度计算部(108)根据进行解扩的路径数和多普勒频率,计算从各通信终端发送的报告值的似然度。 发送目的地确定部(151)基于作为报告值乘以似然率的乘积的判定值,确定发送下行高速分组的通信终端。 调制方法确定部(152)基于判定值来决定下行高速分组的编码率和调制方式。 通过考虑报告值中包含的误差来发送下行高速分组,减少重发次数,提高传输效率,提高系统容量。

    METHOD AND APPARATUS FOR PROCESSING A PHYSICAL CHANNEL WITH PARTIAL TRANSPORT FORMAT INFORMATION
    88.
    发明申请
    METHOD AND APPARATUS FOR PROCESSING A PHYSICAL CHANNEL WITH PARTIAL TRANSPORT FORMAT INFORMATION 审中-公开
    用于处理具有部分运输格式信息的物理通道的方法和装置

    公开(公告)号:WO02021729A2

    公开(公告)日:2002-03-14

    申请号:PCT/US2001/027626

    申请日:2001-09-05

    Abstract: Techniques for recovering data transmitted on a physical channel in which channelization code is not known at the time of the data recovery. A modulated signal is received and processed to provide received samples (612). A hypothesized channelization code (e.g., an OVSF code in the W-CDMA system) is selected (616) and used to process the received samples to generate partially processed symbols (618). The hypothesized channelization code is a "base" code that can be used to generate all possible channelization codes that may have been used for the physical channel. Intermediate results representative of the partially processed symbols are stored (622) and, upon determination of the actual channelization code (624), further processed (626) in accordance with the actual and hypothesized channelization codes to provide the final results. The additional processing includes partitioning the intermediate results into sets, scaling each intermediate result in a particular set with a scaling factor (+1 or 1) determined by the actual and hypothesized channelization codes, and combining the scaled results in each set to obtain a final result. In the STTD mode in the W-CDMA system, the final results from multiple actual OVSF code intervals can be selectively combine to obtain a recovered symbol (628).

    Abstract translation: 用于恢复在数据恢复时在信道化码不知道的物理信道上发送的数据的技术。 接收并处理调制信号以提供接收样本(612)。 选择(616)假设的信道化码(例如,W-CDMA系统中的OVSF码),并用于处理所接收的采样以产生部分处理的符号(618)。 假设的信道化码是可以用于生成可能已经用于物理信道的所有可能的信道化码的“基”码。 存储代表部分处理的符号的中间结果(622),并且根据实际信道化码(624)的确定,根据实际和假设的信道化码进一步处理(626)以提供最终结果。 附加处理包括将中间结果划分成集合,按照由实际和假设的信道化码确定的缩放因子(+1或1)来缩放特定集合中的每个中间结果,并将每个集合中的缩放结果组合以获得最终 结果。 在W-CDMA系统的STTD模式中,可以有选择地组合来自多个实际OVSF码间隔的最终结果以获得恢复符号(628)。

    METHOD AND APPARATUS FOR DETERMINING THE DATA RATE OF A RECEIVED SIGNAL
    89.
    发明申请
    METHOD AND APPARATUS FOR DETERMINING THE DATA RATE OF A RECEIVED SIGNAL 审中-公开
    用于确定接收信号的数据速率的方法和装置

    公开(公告)号:WO1995001032A1

    公开(公告)日:1995-01-05

    申请号:PCT/US1994006956

    申请日:1994-06-20

    Abstract: A system for determining the rate at which data has been encoded in the receiver (12) of a variable-rate communications system. The data is received in symbols that are grouped in frames. When data is transmitted at full rate, the frame is filled with symbols. When the data is transmitted at less than full rate, symbols are repeated within a frame until the frame is full or the symbols are spaced apart within a frame. At an encoding rate of one fourth the full rate, for example, each symbol in the frame is repeated four times or data is transmitted one quarter of the time. The incoming frames are decoded, for example by decoder (48), and re-encoded, for example by encoder (76), at each possible data rate. A comparator, for example comparator (84), compares the re-encoded symbols with the originally received symbols and a counter, for example counter (100), counts the number of symbol errors. Each decoding process produces an indication of the quality of the decoding process which may include Cyclic Redundancy Check (CRC) results, for example CRC (120), or Yamamoto Quality Metrics. The counted errors and the quality indication comprise an error metric which is passed to a processor, for example microprocessor (56). The processor analyzes the error metric for each data rate and determines the most probable rate at which the incoming symbols were encoded.

    Abstract translation: 一种用于确定在可变速率通信系统的接收机(12)中数据被编码的速率的系统。 以帧分组的符号接收数据。 当以全速率传输数据时,帧用符号填充。 当以小于全速传输数据时,在帧内重复符号,直到帧满了,或者符号在帧内间隔开。 以全速率的四分之一的编码率,例如,帧中的每个符号重复四次,或者在四分之一时间内传输数据。 输入帧例如通过解码器(48)进行解码,并以每个可能的数据速率例如由编码器(76)重新编码。 比较器例如比较器(84)将再编码的符号与原始接收到的符号进行比较,并且计数器(例如计数器(100))对符号错误的数量进行计数。 每个解码过程产生可能包括循环冗余校验(CRC)结果的解码过程的质量的指示,例如CRC(120)或Yamamoto质量度量。 计数的错误和质量指示包括传递到处理器(例如微处理器(56))的误差度量。 处理器分析每个数据速率的误差度量,并确定输入符号被编码的最可能的速率。

    SYNCHRONIZATION IN A FLEXIBLE BANDWIDTH WIRELESS NETWORK
    90.
    发明申请
    SYNCHRONIZATION IN A FLEXIBLE BANDWIDTH WIRELESS NETWORK 有权
    柔性带宽无线网络中的同步

    公开(公告)号:US20130259007A1

    公开(公告)日:2013-10-03

    申请号:US13787115

    申请日:2013-03-06

    Inventor: Paul Howard

    CPC classification number: H04W56/001 H04B1/707 H04B2201/70705 H04W92/10

    Abstract: In a wireless network, a primary synchronization signal and a secondary synchronization signal are sent at a predetermined bandwidth in a transmission. The predetermined bandwidth is a lowest operating bandwidth of the wireless network. Data is also sent in the transmission using an operating bandwidth greater than the lowest operating bandwidth.

    Abstract translation: 在无线网络中,在传输中以预定带宽发送主同步信号和辅同步信号。 预定带宽是无线网络的最低​​工作带宽。 使用大于最低工作带宽的工作带宽也在传输中发送数据。

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