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    • 4. 发明授权
    • Efficient packet handling for timer-based discard in a wireless communication system
    • 在无线通信系统中基于定时器的丢弃的高效数据包处理
    • US08325608B2
    • 2012-12-04
    • US12536587
    • 2009-08-06
    • Vanitha A. KumarBin QiuAshwini RainaShailesh MaheshwariGang A. XiaoYateesh S. Gowda
    • Vanitha A. KumarBin QiuAshwini RainaShailesh MaheshwariGang A. XiaoYateesh S. Gowda
    • H04W4/00
    • H04L47/14H04L1/0018H04L47/2416H04L47/28H04L47/32H04L47/38H04L49/90H04L69/04H04W28/06H04W80/02
    • Systems and methodologies are described herein that facilitate efficient handling of packets (e.g., Packet Data Convergence Protocol (PDCP) Protocol Data Units (PDUs) or Service Data Units (SDUs)) in a wireless communication system. As described herein, a number of consecutive packets that are discarded due to a discard timer expiration event and/or other causes can be monitored and compared to a number of tolerated consecutive discarded packets. If the number of consecutive discarded packets does not exceed the number of tolerated consecutive packets, conventional processing operations such as header modification and compression, ciphering, or the like can be omitted for respective packets subsequent to a discarded packet, thereby significantly reducing processing overhead. As further described herein, the number of tolerated consecutive discarded packets can be chosen to maintain header compression (e.g., Robust Header Compression (RoHC)) synchronization, ciphering synchronization, and/or other suitable properties.
    • 本文描述了有助于在无线通信系统中有效处理分组(例如,分组数据融合协议(PDCP)协议数据单元(PDU)或服务数据单元(SDU))的系统和方法。 如本文所述,可以监视由于丢弃定时器到期事件和/或其他原因而被丢弃的多个连续分组,并将其与容许的连续丢弃分组的数量进行比较。 如果连续丢弃的数据包的数量不超过允许的连续数据包的数量,则可以在丢弃的分组之后的各个分组中省略诸如报头修改和压缩,加密等的常规处理操作,从而显着地减少处理开销。 如本文进一步描述的,可以选择容忍的连续丢弃分组的数量以维持报头压缩(例如,鲁棒报头压缩(RoHC))同步,加密同步和/或其他合适的属性。