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- radio access layer 无线接入层
- The next page will describe access layer switches. 下一页将描述存取层交换器。
- The access layer provides users in workgroups access to the network. 存取层提供工作群组的用户可以使用网路。
- Operation times may vary depending on radio access technology used, operator network configuration and usage. 使用时间受信号、网络及使用情况影响。
- UMTS use a new high rate radio access technology-Code Division Multiple Access (CDMA). UMTS网络在宽带领域将采用一种全新的高速率无线技术,即宽带码分多址(Code Division Multiple Access,CDMA)。
- Cellular backhaul provides that crucial link between the mobile operator’s radio access network and its core network. 蜂窝回程为移动运营商的无线接入网络和核心网之间提供了关键的链路。
- Abstract: This paper studies how the 3G radio access network side PKI applications to achieve the confidentiality of the identity of the user. 摘要：本文主要研究了如何在3G的接入网端应用无线PKI来实现用户身份的机密性。
- He is team lead and architect for the Process Choreographer database access layer and work item manager. 他是团队负责人,并且从事数据库访问层和工作项目管理器的构建。
- DSL includes data control layer(DCL), data expression layer(DEL) and data access layer(DAL). 数据服务层包括数据控制层、数据表示层和数据访问层。
- This paper compares the characteristic of 3.5GHz fixed radio access system with the LMDS, points out the system can be chose by need in the applications. 本文对3.;5GHz固定无线接入系统与LMDS系统的特性进行了比较;指出在应用时应根据使用目的来选择相应的系统。
- A business logic layer adds rules to the data access layer, such as restricting access on who can view or change the data. 业务逻辑层用于向数据访问层添加规则,例如对可以查看或更改数据的人员进行访问限制。
- Frequentlythe Model will encapsulate database queries, perhaps taking advantageof an abstract database class (a data access layer) to actually performthe queries. 模型常常会封装对数据库的查询，也许是为了充分利用抽象数据库类(一个数据进程层)的优势来进行查询。
- Then in the middle, you find the Business Logic Layer, or the BLL that is the bridge between the Presentation layer and the next layer: the Data Access Layer or the DAL. 然后在中部, 您发现企业逻辑层数, 或是桥梁在表示层和下层数之间的BLL: 数据存取层数或DAL 。
- TD-SCDMA system is difficult to support different radio access data rates,such as vehicular environment: 144 kbit/s,pedestrian environment: 384 kbit/s,indoor office environment: 2.048 Mbit/s,which are required by 3G standards. TD-SCDMA标准很难提供3G标准所规定的在车载、步行、静止环境下分别达到144 kb it/s、384 kb it/s和2 048 kb it/s的无线接入速率要求。
- Remember all of the Data Access Layer code was generated by templates, so later when you change your database structure you can simply rebuild the DAL again from the templates. 记住所有的数据访问层的代码都是通过模版声称的，因此，随后当你改变你的数据库的结构的时候，你可以通过刚才的模版简单的重新构造DAL。
- This paper shows that the capacity of WCDMA system can be enlarged further, by combining UTRA(Universal Terrestrial Radio Access) TDD (Time Division Duplex) Mode with time?switching array antennas. 主要证明将UTRATDD(通用陆基无线时分双工)模式与时间切换阵列天线技术相结合,可进一步增大WCDMA系统容量。
- Multi-input multi-output (MIMO) is expected to be an important component of long term evolution (LTE) of 3G systems particularly for the downlink Evolved Universal Terrestrial Radio Access (E-UTRA). 摘要多输入多输出技术被预期是在第三代通讯系统长程发展下用于下链进阶通用无线接取中一个非常重要的构成要素之一。
- W-CDMA by 3 GPP is a specific formulation, based on the GSM MAP core network, UTRAN (UMTS terrestrial radio access network) interface for the third generation of wireless mobile communication system. W-CDMA是一种由3GPP具体制定的，基于GSM MAP核心网，UTRAN（UMTS陆地无线接入网）为无线接口的第三代移动通信系统。
- A transistorize radio takes no time to warm up. 晶体管收音机不需要预热时间。
- TCP/IP combines the OSI data link and physical layers into its network access layer. IP结合OSI的资料结链层和实体层成它的网路存取层。
