The various network device drivers run at the interface layer, which receives and transmits data from and to the physical link.
各种网络设备驱动程序在接口层运行，该层从物理链路接收数据，并向物理链路传输数据。
Each layer USES the layers beneath it, so the network layer does not need to worry about how each hop on the network USES the physical and data link layers and so forth.
每一层都使用它下面的层，因此网络层不必担心网络上的每次跳转如何使用物理和数据链接等问题。
The link layer refers to the device drivers providing access to the physical layer, which could be numerous mediums, such as serial links or Ethernet devices.
链路层是指提供对物理层访问的设备驱动程序，这可以是各种介质，例如串口链路或以太网设备。
The link layer provides the physical interface to the communication medium (such as an Ethernet device).
链路层(link layer)提供了通信介质的物理接口(例如以太网设备)。
Main points of the model implementing scheme and designing idea are respectively given for physical layer, data link layer, application layer and user layer.
分别给出物理层、数据链路层、应用层、用户层的模型实施方案及技术要点的设计思想。
The thesis chooses the four-layers structure as the rudiment of our protocol stack system, which includes physical layer, data link layer, network layer and application layer.
本文选择了四层结构作为协议栈体系结构的雏形，即：物理层、数据链路层、网络层、应用层。
This paper mainly discussed the technology of frequency management of communication network based on the physical layer and the data link layer.
本文主要研究了基于该协议物理层和数据链路层的通信网频率管理技术。
The first part of HART protocol include chapter 2,3,4. Chapter 2 introduces the physical layer, data link layer and commands of the HART protocol.
第一部份HART协议部分包括第2、3、4章。 第2章介绍了HART协议，内容包括HART协议的物理层、链路层和命令层。
The communication protocol is designed in term of three layers: Physical layer, Media Access Control layer and Logic Link Control layer.
本通信协议分为物理层、介质访问控制层和逻辑链路控制层三层设计。
This algorithm combined sub-carrier allocation in the physical(PHY) layer with traffic scheduling at the data link layer (DLL) by employing the channel state information.
利用物理层的信道状态信息，该算法将物理层（PHY）的子载波分配同数据链路层（DLL）的数据包业务调度结合起来。
According to the layering structure of CEBus, the principles and implement schemes of physical layer, data link layer and application layer are analyzed completely.
根据消费总线的分层结构，全面剖析了物理层、数据链路层、应用层的原理和实现方法。
Through using 16-bit freescale MCU embedded CAN controller as master chip in each node, it achieved the design of hardware circuit, so realized CAN physical layer and CAN data link layer.
各个节点设计上采用内置CAN模块的飞思卡尔16位单片机作为主控芯片来搭建硬件电路，以实现CAN总线的物理层和数据链路层。
The physical layer defines the electrical, mechanical, procedural, and functional specifications for activating, maintaining, and deactivating the physical link between end systems.
物理层定义了在端系统之间为了建立、维持和撤消物理链路所需的电气的、机械的、过程的和功能的特征。
The 1394 link layer chip can be linked to the physical layer, and then the 1394 chips can complete the task of transmission.
对所选择的1394链路层芯片和物理层芯片进行电路连接，使1394芯片组能够相互配合完成传输任务。
The whole system was divided into three layer: physical layer, communication link layer and application layer.
把整个系统分为三层：物理层，通信链路层和应用层。
Then I introduce the concepts about level design and make the frame structure of the Proximity link protocol. I also analyze the physical layer, data link layer and the progress of the protocol, etc.
然后采用了协议的分层设计概念，根据协议要求制定了帧格式，详细分析并设计了物理层、数据链路层和协议工作流程等。
But the intrinsic error exists in PP model for the effect of the data link layer and physical layer, and the incorrect result is obtained by filter algorithm when the network load is heavy.
由于受数据链路层和物理层的影响，PP测量模型本身存在着固有的测量误差；当网络负载较重时，PP测量模型就不能够通过过滤算法得出正确的测量结果。
Cooperative ARQ protocols will extend Cooperative Communication's range from the signal processing of physical layer to the data transmission of data link layer.
协作ARQ协议将协作通信范围由物理层的信号处理推广到链路层的数据传输。
The structure of physical layer, link layer and application layer was applied in field-bus of network control, data was gained through cyclic query of principal and subordinate PC in link layer.
控制网络现场总线采用物理层、链路层和应用层结构。链路层以主从循环查询获取数据。
The conversion was finished on the physical layer and the data link layer, and the problem of direct communications between fieldbus and Ethernet was solved.
该网关在网络的物理层和数据链路层完成协议转换，解决了现场总线和以太网无法实现直接通信的问题。
Technical regulation of CAN Bus network is lucubrated and Data Link Layer and Physical Layer in hierarchy structure of CAN Bus is described.
研究了CAN网络协议的技术规范，描述了CAN总线的分层结构中的数据链路层和物理层。
Using this integrated physical and link layer controller chip, PC can be connected to all kinds of 1394 video and audio devices according to 1394 bus.
结果表明，通过该接口转换电路能将个人的计算机按照1394电缆连接到各种1394视频音频设备。
In the physical layer, a link state monitoring module was added.
在物理层增加了链路状态监测模块。
OSI/RM classify the structure of the network into application layer, presentation layer, session layer, transport layer, network layer, data link layer and physical layer.
OSI/RM将计算机网络将网体系结构划分为应用层、表示层、会话层、传输层、网络层、数据链路层和 物理层七个层次。
The LCP sits on top of the physical layer and is used to establish, configure, and test the data-link connection.
连结控制协定在实体层的上面，被用于建立、组态与测试资料连结的连线。
The LCP sits on top of the physical layer and is used to establish, configure, and test the data-link connection.
连结控制协定在实体层的上面，被用于建立、组态与测试资料连结的连线。
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