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    • 8. 发明授权
    • Retransmission-request transmitting method and receiving side apparatus
    • 再发送请求发送方法和接收侧装置
    • US08098664B2
    • 2012-01-17
    • US12532718
    • 2008-03-21
    • Anil UmeshAtsushi Harada
    • Anil UmeshAtsushi Harada
    • H04L12/28
    • H04L1/1832H04L1/1628H04L1/1664H04L1/1812H04L1/1848
    • In a retransmission-request transmitting method, the receiving side apparatus activates a reordering timer, when receiving a first packet before receiving an unreceived packet with a sequence number smaller than a sequence number of the first packet; triggers transmission of a retransmission request for the unreceived packet, when having not received the unreceived packet by the time of expiration of the reordering timer activated in response to the receipt of the first packet; and stops and reactivates the reordering timer activated in response to the receipt of the first packet, when a value of the sequence number of the first packet falls out of a range of the receiving side window as a result of changing the upper limit value and the lower limit value in accordance with a sequence number of a second packet received from the transmitting side apparatus.
    • 在重传请求发送方法中,接收侧装置在接收到序列号小于第一分组的序列号的未发送分组之前接收到第一分组时,激活重新排序定时器; 当在响应于接收到第一分组而被激活的重新排序定时器期满时没有接收到未接收分组时,触发对未接收分组的重发请求的传输; 并且当所述第一分组的序列号的值从所述接收侧窗口的范围中移除时,停止并重新激活响应于所述第一分组的接收而被激活的所述重新排序定时器,作为改变所述上限值的结果,并且 根据从发送侧装置接收到的第二分组的序列号,确定下限值。
    • 9. 发明授权
    • Radio communication method and radio base station apparatus based on variable TTI length control
    • 基于可变TTI长度控制的无线电通信方法和无线基站装置
    • US07965640B2
    • 2011-06-21
    • US12299000
    • 2007-04-26
    • Atsushi HaradaMinami IshiiSadayuki Abeta
    • Atsushi HaradaMinami IshiiSadayuki Abeta
    • H04L12/26
    • H04W28/06H04L1/0026H04L1/1812H04L1/1887H04W64/006
    • A controlling method and a radio base station apparatus capable of variably determining a Transmission Time Interval (TTI) length in accordance with a communication environment of a mobile terminal is disclosed. The radio base station apparatus includes a receiving section receiving information via an uplink channel; and a scheduler variably determining a Transmission Time Interval (TTI) length for any one of an uplink shared channel and a downlink shared channel or both based on at least any of a moving speed of a mobile terminal, location of the mobile terminal in a cell, a provided throughput value, and a number of retransmissions obtained from the received information. Preferably, the scheduler includes a TTI length allocation table describing relationships between parameter values and the corresponding TTI length, the parameters being used for estimating the location and/or the moving speed of the mobile terminal.
    • 公开了一种能够根据移动终端的通信环境可变地确定传输时间间隔(TTI)长度的控制方法和无线基站装置。 无线基站装置包括经由上行链路信道接收信息的接收部分; 以及基于移动终端的移动速度,移动终端在小区中的位置中的至少一个可变地确定上行链路共享信道和下行链路共享信道中的任一个的传输时间间隔(TTI)长度或二者的调度器 ,提供的吞吐量值和从接收到的信息获得的重传次数。 优选地,调度器包括描述参数值与对应的TTI长度之间的关系的TTI长度分配表,用于估计移动终端的位置和/或移动速度的参数。