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    • 2. 发明申请
    • DOWNLINK RECEPTION INDICATION METHOD IN PACKET BASED MOBILE COMMUNICATION SYSTEM
    • 基于分组的移动通信系统中的下行接收指示方法
    • US20100111028A1
    • 2010-05-06
    • US12638385
    • 2009-12-15
    • Jae-Heung KIMKyoung-Seok LeeJung-Im KimByung-Han RyuSeung-Chan Bang
    • Jae-Heung KIMKyoung-Seok LeeJung-Im KimByung-Han RyuSeung-Chan Bang
    • H04W72/04
    • H04W76/28H04W56/0005H04W74/00
    • Provided is a method for indicating a mobile station maintaining radio resource control (RRC) connection but not maintaining uplink physical layer synchronization to receive downlink signals when packet data to be transmitted to the mobile station are generated to thereby make the mobile station start uplink signal transmission. The method includes: (a) allocating a random access preamble index and generating a downlink signal reception indication message including the allocated random access preamble index in a base station; (b) transmitting the generated downlink signal reception indication message to the mobile station; (c) forming a response message to random access, when a preamble signal designated by the random access preamble index is transmitted from the mobile station in response to the downlink signal reception indication message; and (d) transmitting the response message to random access to the mobile station to thereby control uplink physical layer synchronization.
    • 提供了一种用于指示移动台维持无线电资源控制(RRC)连接但不保持上行链路物理层同步以在发送到移动台的分组数据被生成以接收下行链路信号的方法,从而使得移动站启动上行链路信号传输 。 该方法包括:(a)分配随机接入前导索引,并在基站中产生包括所分配的随机接入前导码索引的下行链路信号接收指示消息; (b)向移动台发送所生成的下行链路信号接收指示消息; (c)响应于所述下行链路信号接收指示消息从所述移动台发送由所述随机接入前导码索引指定的前导信号时,形成随机接入的响应消息; 和(d)将所述响应消息发送到对所述移动站的随机接入,从而控制上行链路物理层同步。
    • 3. 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。
    • 10. 发明授权
    • Method and apparatus for error correction in MBMS receipt system
    • MBMS接收系统纠错方法和装置
    • US08711829B2
    • 2014-04-29
    • US12089352
    • 2006-10-02
    • Jung-Im KimJae-Heung KimKyoung-Seok LeeByung-Han RyuSeung-Chan Bang
    • Jung-Im KimJae-Heung KimKyoung-Seok LeeByung-Han RyuSeung-Chan Bang
    • H04J3/00H04L12/26H04J3/24G06F11/00H03M13/00
    • H04L1/0072H04L1/0061
    • Provided is an error correcting method that can provide improved error correction efficiency in a multimedia broadcast/multicast service (MBMS) by marking the presence of an error in a Protocol Data Unit (PDU) with an error instead of discarding the erroneous PDU in an MBMS terminal of the MBMS system, which performs error correction in an application layer, and transmitting the erroneous PDU together with a PDU without an error to the application layer, and an error correction apparatus employing the method. The MBMS terminal includes: a radio link control (RLC) protocol processor configured to receive PDUs generated from the reception data, generate service data units (SDUs) by combining the PDUs, mark whether there is an SDU recovered from a PDU with an error, and output the SDUs; and a packet data convergence protocol (PDCP) processing means configured to receive and deliver the SDUs.
    • 提供了一种错误校正方法,其可以通过在具有错误的协议数据单元(PDU)中标记出现错误而不是丢弃MBMS中的错误PDU来在多媒体广播/多播服务(MBMS)中提供改进的纠错效率 在应用层中执行纠错的MBMS系统的终端以及与错误的PDU一起发送到应用层的错误PDU以及采用该方法的纠错装置。 MBMS终端包括:无线链路控制(RLC)协议处理器,被配置为接收从接收数据生成的PDU,通过组合PDU来生成服务数据单元(SDU),标记是否存在从PDU恢复的SDU与错误, 并输出SDU; 以及被配置为接收和传送所述SDU的分组数据融合协议(PDCP)处理装置。