重传

This model can provide the good base of adaptive modulation and coding and automatic repeat request as well as dynamic resource allocation.

首先分析了正交频分复用技术频域信道统计特性，说明了Nakagami-m分布能更好地描述衰落信道；然后针对高速移动及OFDM信号传输的特点，采用状态持续时间相等法建立了OFDM频域信道有限状态马尔可夫模型，分别给出了计算持续时间、状态门限及状态数、转移概率、状态差错率的一般方法及m=0.5\1\2典型值的闭式解，该模型能为自适应模型控制、混合自动重传请求 HARQ、动态资源分配等技术提供良好的基础。

Adaptive Modulation and Coding and Hybrid Automatic Repeat reQuest are two main link adaptation techniques. Along with the higher demands of data rate and quality of service, the system performance can be well improved by employing AMC and HARQ.

链路自适应技术能有效地提高数据传输速率和频谱利用率，是目前和未来移动通信系统的关键技术之一，自适应调制编码AMC和混合自动请求重传HARQ是其中两种主要的链路自适应技术。

The High Speed Uplink Packet Access technology includes Adaptive Modulation and Coding, Hybrid Automatic Repeat Request, and Node B fast scheduling. It also solves the problem of sharing the uplink channel resources for User Equipment.

为了改善上行性能，高速上行分组接入主要考虑的技术包括自适应调制编码、混合自动重传、节点B快速调度，以及用户终端如何共享上行信道资源，同时包括增加增强的媒体访问控制实体，对协议进行增强和优化。

Any subsequent retransmit operation, will reset the read pointer to this marked location.

任何后续重传操作，将重置读指针这标志着位置。

commited information rate,round trip time and retransmission timeout,can bias bandwidth assurance.through researching the relation between bandwidth and these factors, this paper proposed a cir,rtt,rto aware marker(crr3cm) based on time sliding window three color marker(tsw3cm),which could achieve proportional fair sharing of excess bandwidth among aggregates and mitigate the impact of cir,rtt,rto for bandwidth assurance.

摘 要：往返时间、目标速度以及重传超时等因素导致了带宽分配的不均匀。通过研究带宽与这些因素的关系，在时间滑动窗口三色标记器（tsw3cm）的基础上，提出一种cir、rtt、rto感知的标记器(crr3cm)。该标记器完成了在各汇聚流之间对剩余带宽的公平分配，减少了目标速度、往返时间，以及重传超时因素对带宽分配的影响。

Multiple network transmissions overlapping in the physical channel, resulting in garbled data and necessitating ''.

多个网络传输重迭发生在同一物理信道上，它导致数据被破坏，因而必须重传。

In different parameter setting, noted down the times of data retransmission, resending the data package, the time of passing link layer, utilization ratio of link layer, average length of each queue etc.

在不同的参数设置下，统计了数据重传次数、产生的重发包数、数据通过链路的时间、链路利用率、平均队长等具体指标。

commited information rate,round trip time and retransmission timeout,can bias bandwidth assurance.through researching the relation between bandwidth and these factors, this paper proposed a cir,rtt,rto aware marker(crr3cm) based on time sliding window three color marker(tsw3cm),which could achieve proportional fair sharing of excess bandwidth among aggregates and mitigate the impact of cir,rtt,rto for bandwidth assurance.

小 摘 要：往返时间、目标速度以及重传超时等因素导致了带宽分配的不均匀。通过研究带宽与这些因素的关系，在时间滑动窗口三色标记器（tsw3cm）的基础上，提出一种cir、rtt、rto感知的标记器(crr3cm)。该标记器完成了在各汇聚流之间对剩余带宽的公平分配，减少了目标速度、往返时间，以及重传超时因素对带宽分配的影响。

The method for requesting data retransmission retransmits a plurality of data through the information state PDU with a plurality of data, saves the consumption of the state PDU and improves the system retransmission efficiency.

本发明通过一个携带多个数据的信息状态PDU，重传多个数据，节省了状态PDU的开销，提高了系统的重传效率。

An embodiment of the invention discloses an automatic retransmission requesting method in a relay network. The method comprises the following procedures: storing the data and transmitting the data to the receiving end when a relay station RS confirms that the data from the transmitting side is correctly received; returning an affirmative response of the corresponding data to the transmitting side by the RS when the RS confirms that the data corresponding to the response information is correctly received by the receiving end according to the response information from the receiving end; and retransmitting the corresponding data when the RS confirms that the data stored by itself is not correctly received by the receiving end according to the response information.

本发明实施例公开了一种中继网络中的自动重传请求方法，该方法包括：中继站RS确定正确接收到来自发端的数据时，保存所述数据，将所述数据转发给收端；所述RS根据来自所述收端的应答信息，确认所述应答信息对应的数据已被所述收端正确接收，则向所述发端返回对应数据的肯定应答；所述RS根据所述应答信息确定自身已保存的数据未被所述收端正确接收，则向所述收端重传对应数据。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。