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    • 6. 发明申请
    • LAYERED TRANSMISSION APPARATUS AND METHOD, RECEPTION APPARATUS AND RECEPTION METHOD
    • 分层传输装置和方法,接收装置和接收方法
    • US20110194643A1
    • 2011-08-11
    • US13024867
    • 2011-02-10
    • Seong Rag KIMSeuck Ho WonJung-Im Kim
    • Seong Rag KIMSeuck Ho WonJung-Im Kim
    • H04L27/00
    • H04L27/3488H04L1/007H04L25/03197H04L2025/0342
    • A layered transmission apparatus for transmitting information regarding a plurality of layers includes: a plurality of coding units configured to code an information bit of a corresponding layer to generate code bits; a plurality of bit interleaving units configured to bit-interleave a corresponding code bit to generate interleaved symbols; a modulation unit configured to classify the plurality of layers into a plurality of layer groups, and modulate the plurality of the interleaved symbols corresponding to each of the layer groups to generate a modulation symbol of each of the layer groups; a gain control unit configured to control the gain of the modulation symbol of each of the layer groups; and an adding unit configured to add the gain-controlled modulation symbols of the plurality of layer groups to generate a transmission symbol. A reception apparatus includes: a symbol metric estimation unit configured to estimate a symbol metric of a layer transmission signal received from a layered transmission apparatus; a plurality of bit metric calculation units configured to calculate a bit metric corresponding to an interleaved bit generated from the layered transmission apparatus based on the estimated symbol metric; a plurality of deinterleaving units configured to calculate a code bit metric based on the bit metric; a plurality of layer symbol metric calculation units, configured to calculate a symbol metric of the corresponding layer based on the code bit metric of the corresponding layer; and a plurality of decoding units, configured to decode an information bit of the corresponding layer based on the symbol metric of the corresponding layer.
    • 用于发送关于多个层的信息的分层发送装置包括:多个编码单元,被配置为对相应层的信息比特进行编码以生成码比特; 多个比特交织单元,被配置为对相应的码比特进行比特交织以产生交织符号; 调制单元,被配置为将多个层分成多个层组,并且调制与每个层组对应的多个交织符号,以生成每个层组的调制符号; 增益控制单元,被配置为控制每个层组的调制符号的增益; 以及添加单元,被配置为添加所述多个层组的增益控制调制符号以生成发送符号。 接收装置包括:符号度量估计单元,被配置为估计从分层发送装置接收的层发送信号的符号度量; 多个比特度量计算单元,被配置为基于所估计的符号度量来计算与从所述分层发送装置生成的交织比特相对应的比特度量; 多个解交织单元,被配置为基于比特度量计算码比特度量; 多个层符号度量计算单元,被配置为基于相应层的码位度量来计算相应层的符号度量; 以及多个解码单元,被配置为基于相应层的符号度量来对相应层的信息位进行解码。
    • 7. 发明申请
    • MBMS DATA TRANSMISSION AND RECEIVING IN PACKET BASED ON CELLULAR SYSTEM
    • 基于细胞系统的分组数据传输和接收
    • US20110044223A1
    • 2011-02-24
    • US12438529
    • 2007-08-23
    • Jung-Im KimYoung-Jo KoJae-Heung KimKyoung-Seok LeeByung-Han RyuSeung-Chan Bang
    • Jung-Im KimYoung-Jo KoJae-Heung KimKyoung-Seok LeeByung-Han RyuSeung-Chan Bang
    • H04W40/00
    • H04L1/1816H04L1/0025H04L1/1887H04L2001/0093
    • Provided is a method for transmitting and receiving multimedia broadcast multicast service (MBMS) data in a packet based cellular system. The method for transmitting multimedia broadcast multicast service (MBMS) to a plurality of mobile stations in a packet based cellular system, includes the steps of: a) transmitting scheduling information of transmission data, b) hybrid automatic repeat request (HARQ) information, and a service group identifier (ID) for MBMS to the mobile stations through a MBMS dedicated control channel; b) transmitting information about a dedicated feedback channel of a mobile station and unique scrambling codes different by cells and mobile stations to the mobile stations; c) transmitting a MBMS data packet to the mobile station; d) transmitting radio resource information of data retransmitted using a downlink control signal to the mobile stations if negative acknowledgment (NACK) is received from at least one of the mobile stations; and e) transmitting the retransmitted data to the mobile stations.
    • 提供了一种在基于分组的蜂窝系统中发送和接收多媒体广播多播服务(MBMS)数据的方法。 在基于分组的蜂窝系统中向多个移动站发送多媒体广播组播服务(MBMS)的方法包括以下步骤:a)发送传输数据的调度信息,b)混合自动重传请求(HARQ)信息,以及 通过MBMS专用控制信道向移动台发送用于MBMS的业务组标识符(ID); b)向移动台发送关于移动台的专用反馈信道的信息和由小区和移动台不同的唯一扰码; c)向所述移动台发送MBMS数据分组; d)如果从所述移动站中的至少一个接收到否定确认(NACK),则向所述移动站发送使用下行链路控制信号重发的数据的无线资源信息; 以及e)将重传的数据发送到移动站。