欢迎使用 FreeBSD！ 本手册适用于安装 FreeBSD 8.4-RELEASE 和 FreeBSD 9.2-RELEASE 以及它们的日常使用。 这个手册目前由很多人 持续地 维 护。 其中的内容需要不断地更新。 如果您有兴趣参加这个项目， 请发邮件到 FreeBSD 文档计划邮件列表。 此文档最新的英文原始版本可以从 FreeBSD 网 站 上获得 (本手册的较早期版本可以在 http://docs.FreeBSD.org/doc/ 找到)。 由 FreeBSD 中文计划 维护的最新译本可以在 FreeBSD 中文计划 快照网站 获得， 这一译本会持续地向主站同步。 此外， 您也可以从 FreeBSD FTP 服务器 及其 众多 镜像站点 取得这份文档的各种其它格式， 以及压缩形式的版本。 如果 您希望得到一份印刷版本的手册， 可以从 FreeBSD Mall 购买。 除此之外， 您还可以 在手册中搜索内容
上传时间： 2019-05-07
上传用户：shexiatang
Digital cellular telecommunications system (Phase 2+); Technical realization of the Short Message Service (SMS) Point-to-Point (PP) (3GPP TS 03.40 version 7.5.0 Release 1998)
标签： GSM
上传时间： 2019-06-14
上传用户：twogozi
Digital cellular telecommunications system (Phase 2+); Security mechanisms for SIM application toolkit; Stage 2 (3GPP TS 03.48 version 8.8.0 Release 1999)
标签： GSM
上传时间： 2019-06-14
上传用户：twogozi
TM Forum Technical Report CSP Use Cases Utilizing 1Blockchain TR279 Release 17.5.0 December 2017
标签： 英文
上传时间： 2019-09-25
上传用户：kongqm
Delphi三层数据库连接池 (1) Connection Pool for Delphi release notes ------------------------------------------------------------------------------- This document contains: - Short description of the product - Other text files - TRIAL version limitations - Delphi - versions supported - Installation of Connection Pool for Delphi - Installation of Connection Pool for Delphi help file - Ordering information - Support and Web resources - Thanks To
上传时间： 2019-12-12
上传用户：me2008
LTE-Advanced becomes a truly global standard for 4G cellular communications. Relay, as one of the key technologies of LTE-Advanced, can significantly extend the coverage, and improve the system throughput. LTE-A standards and tech- nologies were described in several recent books where the limited pages for relay feature prevent the detailed explanations of the technology. In this book, we tried to provide an in-depth description of LTE-A relay development. More specifically, significant portions are spent on relay channel modeling and potential technologies during the study item phase of the development, although some of those tech- nologies, such as Type 2 cooperative relay, multi-hop relay, relay with backhaul of carrier aggregation, were not standardized in Release 10 LTE.
标签： LTE-Advanced Technology Relay
上传时间： 2020-05-27
上传用户：shancjb
When 3GPP started standardizing the IMS a few years ago, most analysts expected the number of IMS deploymentsto grow dramatically as soon the initial IMS specifications were ready (3GPP Release 5 was functionallyfrozenin the first half of 2002and completedshortly after that). While those predictions have proven to be too aggressive owing to a number of upheavals hitting the ICT (Information and Communications Technologies) sector, we are now seeing more and more commercial IMS-based service offerings in the market. At the time of writing (May 2008), there are over 30 commercial IMS networks running live traffic, addingup to over10million IMS users aroundthe world; the IMS is beingdeployedglobally. In addition, there are plenty of ongoing market activities; it is estimated that over 130 IMS contracts have been awarded to all IMS manufacturers. The number of IMS users will grow substantially as these awarded contracts are launched commercially. At the same time, the number of IMS users in presently deployed networks is steadily increasing as new services are introduced and operators running these networks migrate their non-IMS users to their IMS networks.
标签： Multimedia Subsystem The IMS 3G IP
上传时间： 2020-06-01
上传用户：shancjb
Since its release, Arduino has become more than just a development platform; it has become a culture built around the idea of open source and open hardware, and one that is reimagining computer science and education. Arduino has opened hardware development by making the starting skills easy to obtain, but retaining the complexities of real-world application. This combination makes Arduino a perfect environment for school students, seasoned developers, and designers. This is the first Arduino book to hold the title of “Pro,” and demonstrates skills and concepts that are used by developers in a more advanced setting. Going beyond projects, this book provides examples that demonstrate concepts that can be easily integrated into many different projects and provide inspiration for future ones. The focus of this book is as a transition from the intermediate to the professional.
上传时间： 2020-06-09
上传用户：shancjb
全志A33芯片资料A33核心板技术手册硬件参考设计A33开发板CADENCE原理图PADS PCB图文件：A33 brief 20140522.pdfA33 Datasheet release1.0.pdfA33 user manual release 1.0.pdfA33-Core3引脚定义表.pdfA33-Core3核心板外围电路设计参考.pdfA33-Core3核心板硬件手册.pdfA33_Vstar3使用手册VerC.pdf尺寸图底板PCB图开发底板原理图PCB网卡电路参考设计说明.txtA33-Core3引脚图.pdfA33-Vstar-LCD07-10.pdfRER-A33-DVK3-padslogic95.schRER-A33-DVK3-SCH.DSNRER-A33-DVK3-SCH.pdf第二版改MIPI座子
上传时间： 2021-11-08
上传用户：qdxqdxqdxqdx
学习本章要达到的目标：口1.理解 Linux内核编译选项的含义口2.学会根据不同的硬件配置裁减定制内核；口3.理解内核编译过程中每一步的功能，并编译 Linux2.630内核。需要去重新编译 Linux内核口增加操作系统对新的硬件设备的支持口增加内核新的功能口对内核代码或内核配置进行优化时Prompt for development and/or incomplete code/drivers口显示处于开发调试中或尚未完善的代码或驱口选中：如果是测试人员或者开发者；口不选：其他情况Local version append to kerne release口追加本地版本号口使用命令“uname-a”进行查看。POSIX Message Queues口 POSIX消息队列的支持，这是 POSIX进程间通信的一部分BSD Process Accounting口将进程的统计信息写入文件口信息通常包括建立时间、所有者、命令名称、内存使用、控制终端等，这个选项一般是选择的。Enable loadable module support口使能可加载模块支持口如果使能此选项则可以通过"makemodules_insta"把内核模块安装在/lib/modules/中Kernel support for ELF binaries口内核对ELF文件格式的支持口ELF是开放平台下最常用的二进制文件格式支持动态连接，支持不同的硬件平台Kernel support for a out and ECOFF binaries口早期UNIX系统的可执行文件格式，目前已经被ELF格式取代Unix domain sockets口本机高效率的 Socket口仅能运行在本机上的高效率的 Socket，简称 Unix socket。口很多进程使用为这种机制在操作系统内部进行进程间通信，例如 X Window和 syslog等TCP/IP networking口TcP/IP网络协议的支持
标签： linux
上传时间： 2022-03-29
上传用户：kingwide
