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GPRS(General Packet Radio Service)是通用分组无线业务的简称。GPRS是GSM Phase2.1规范实现的内容之一，能提供比现有...
GPRS(General Packet Radio Service)是通用分组无线业务的简称。GPRS是GSM Phase2.1规范实现的内容之一，能提供比现有GSM网9.6kbit/s更高的数据率。GPRS采用与GSM 相同的频段、频带宽度、突发结构、无线调制标准、跳频规则以及相同的TDMA帧结构。因此，在GSM系统的基础上构建GPRS系统时，GSM系统中的绝大部分部件都不需要作硬件改动，只需作软件升级。-GPRS (General Packet Radio Service) is a General Packet Radio Service abbreviation. GPRS GSM Phase2.1 norms to achieve one of the elements that can provide more than the existing GSM network 9.6kbit/s higher data rate. GSM and GPRS using the same frequency and bandwidth, unexpected structure, the wireless standard modulation, frequency hopping and the same rules TDMA frame structure. Therefore, in the GSM system builds on the GPRS system, the GSM system of most components do not need to make hardware changes, only for software upgrades.
- 2022-10-21 03:00:04下载
- 积分：1
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DWR与界面开发 包括树控件 XML配置 界面开发规范
DWR与界面开发 包括树控件 XML配置 界面开发规范-DWR and interface development, including tree controls the development of XML configuration interface specification
- 2022-03-02 19:19:56下载
- 积分：1
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一个模拟显示自然云彩的C程序
一个模拟显示自然云彩的C程序-A simulated display of natural clouds of C procedures
- 2022-08-20 21:52:52下载
- 积分：1
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我写了这篇文章来捕捉到一个窗口图像的位图文件，W。
I have written this article to capture a Windows image into a bitmap file that will support all PaintBrush tools and Thumbnail Views of Windows Explorer. I have found many programmers suffering from this problem, including me, until I wrote this article. 捕获一个窗口图像并存入一个支持MS画笔的位图文件中 我写的这篇文章介绍了捕获一个窗口图像并存入一个支持所有画笔和Windows Explorer的位图文件中。 我发现许多程序员因这个问题而烦恼,包括我在内,直到我写了这篇文章。 来源: http://www.codeguru.com/bitmap/WndToBmpFile.html-I have written this article to capture a Windows image into a bitmap file that will support all PaintBrush tools and Thumbnail Views of Windows Explorer. I have found many programmers suffering from this problem, including me, until I wrote this article.
- 2022-02-04 23:22:33下载
- 积分：1
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s2go论坛精华帖 CHM
s2go论坛精华帖 CHM -s2go Forum essence TIE CHM
- 2022-04-02 04:18:29下载
- 积分：1
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maintenance depots information on the internal circulation
联想维修站的内部发行资料-maintenance depots information on the internal circulation
- 2023-08-09 09:40:03下载
- 积分：1
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uiOne introductory phone after Got development trends
uiOne的介绍 手机以后ui开发的趋向-uiOne introductory phone after Got development trends
- 2022-03-23 03:51:50下载
- 积分：1
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C8051F0XX bootloaders procedures for consideration and
C8051F0XX引导装入程序考虑及举例-C8051F0XX bootloaders procedures for consideration and
- 2022-12-27 06:55:03下载
- 积分：1
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web页在线开发源码!
web页在线开发源码!-web pages online source development!
- 2022-07-09 19:02:11下载
- 积分：1
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一些自己开发的控件源代码
一些自己开发的控件源代码-some control source code developed by someone
- 2022-05-29 02:44:32下载
- 积分：1
