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    • 2. 发明申请
    • METHOD AND APPARATUS FOR PERFORMING HANDOVER USING PACKET DATA CONVERGENCE PROTOCOL (PDCP) REORDERING IN MOBILE COMMUNICATION SYSTEM
    • 在移动通信系统中使用分组数据汇总协议(PDCP)执行切换的方法和装置
    • US20080095116A1
    • 2008-04-24
    • US11875315
    • 2007-10-19
    • Soeng-Hun KIMKyeong-In JeongGert Van LieshoutHimke Van Der Velde
    • Soeng-Hun KIMKyeong-In JeongGert Van LieshoutHimke Van Der Velde
    • H04Q7/00
    • H04W36/0055H04L1/1841H04W36/02H04W36/24
    • Improving communication efficiency in handover re-establishing an ARQ entity in a mobile communication system is disclosed. The method includes transmitting first Packet Data Convergence Protocol (PDCP) Packet Data Units (PDUs) correctly received from the source cell, together with a special indication requiring reordering of the first PDCP PDUs, from a Radio Link Control (RLC) receiving buffer to a PDCP receiving entity when a handover command message from a source cell to a target cell is received; buffering the first PDCP PDUs in a PDCP PDU reordering buffer by the PDCP receiving entity in response to the special indication; and when a second PDCP PDU is received from the target cell through a new RLC receiving entity for the target cell, outputting third PDCP PDUs up to a PDCP PDU before a first missing PDCP PDU having a sequence number higher than that of the second PDCP PDU from the PDCP reordering buffer. In the method, a PDCP entity performs reordering, thereby improving efficiency of communication.
    • 公开了提高移动通信系统中重传ARQ实体的切换中的通信效率。 该方法包括将从源小区正确接收的第一分组数据收敛协议(PDCP)分组数据单元(PDU)以及需要从第一PDCP PDU重新排序的特殊指示从无线链路控制(RLC)接收缓冲区发送到 当从源小区到目标小区的切换命令消息被接收时,PDCP接收实体; 响应特殊指示,由PDCP接收实体缓冲PDCP PDU重排序缓冲器中的第一PDCP PDU; 并且当通过用于目标小区的新的RLC接收实体从目标小区接收到第二PDCP PDU时,在具有比第二PDCP PDU的序列号高的序列号的第一丢失PDCP PDU之前,将第三PDCP PDU输出直到PDCP PDU 从PDCP重新排序缓冲区。 在该方法中,PDCP实体执行重新排序,从而提高通信的效率。