Description: 分频计时4.615ms产生中断信息用于GSM中的信息验证，大家可以拿来参考一下-4.615ms time-frequency information is used to generate an interrupt information in the GSM authentication, can be used to refer to U.S. Platform: |
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Author:麻振兴 |
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Description: GSM Security and the protocols involves in a mobile environment authentication proce-GSM Security and the protocols involves in a mobile environment authentication process Platform: |
Size: 118784 |
Author:renuka |
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Description: GSM通信流程包括两方面的内容呼叫基本流程信令基本流程其中呼叫流程主要包含移动主叫流程移动被叫流程汇接呼
叫流程信令基本流程主要包含鉴权流程位置登记流程呼叫重建流程BSC内部切换流程BSC间切换流程MSC间切换流程
移动始发短消息流程移动终结短消息流程定向重试流程
这些流程从系统的角度描述了移动用户经常发生的行为描述了GSM的几个组成部分在呼叫流程信令流程中的相互关系对移动性
特征做重点说明-GSM communication process consists of two aspects of the basic flow of the call signaling process in which the basic call flow processes mainly include mobile calling tandem mobile call flow signaling process called the basic procedure involved location registration procedure call authentication process renewal process within the switch BSC BSC MSC process to switch between processes to switch between process moving before the end mobile short message Send PM process flow directed retry process from a system point of view these processes describe the behavior of mobile users frequently described GSM several components of the letter in the call flow so that the relationship between process characteristics for mobility do highlight Platform: |
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Author: |
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Description: linphone-3.3.0 版本，这个就不多做介绍了，知道的人都知道！如果还是不知道，那么看看下面英文的介绍吧。-Features
Linphone provides a large amount of functionalities.
List of supported features:
* audio with the following codecs: speex (narrow band and wideband), G711 (ulaw,alaw), GSM, and iLBC (through an optional plugin)
* video with codecs: H263-1998, MPEG4, theora and H264 (thanks to a plugin based on x264), with resolutions from QCIF(176x144) to SVGA(800x600) provided that network bandwidth and cpu power are sufficient.
* Supports any webcam with V4L or V4L2 driver under linux
* Any webcam on windows
* text instant messaging and presence (using the SIMPLE standart)
* Addressbook
* DTMF (telephone tones) support using SIP INFO or RFC2833
* understands SIP ENUMS (sip phone numbers using the naptr DNS service, without proxy)
* echo cancelation using the great speex echo canceler
* SIP proxy support: registrar, proxies, with digest authentication
* STUN support for traversal of UDP NATs (=firewall)
* sound backend using either ALSA (t Platform: |
Size: 8246272 |
Author:独孤一笑 |
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Description: GSM-WDMA鉴权过程及原理的说明，希望对大家有用-GSM-WDMA description of the authentication process and the principle of Platform: |
Size: 148480 |
Author:renchao |
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Description: a paper about UMTS, In this paper authors present a man-in-the-middle attack on the
Universal Mobile Telecommunication Standard (UMTS),
one of the newly emerging 3G mobile technologies. The attack
allows an intruder to impersonate a valid GSM base station
to a UMTS subscriber regardless of the fact that UMTS
authentication and key agreement are used. As a result, an
intruder can eavesdrop on all mobile-station-initiated traffic Platform: |
Size: 97280 |
Author:aliaskari
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Description: 毕设论文+源码+原理图PCB图+答辩资料+文献翻译等全套毕设资料。能实现家电远程控制，操作提示音、六位密码身份认证、密码修改和密码掉电保存功能，实现盗警，煤气泄漏手机短信息方式远程报警等功能。利用SM8952AC25P、MT8870、TC35 modem和各类家居传感器设计制作一款GSM智能家居控制系统样机。(The complete set of complete set of data is set up with the paper + source code + principle map PCB chart + plea data + literature translation. It can realize remote control of household appliances, operation prompting, six bit password authentication, password modification and password power saving, and realize the functions of stealing police, gas leakage, mobile phone short message, remote alarm, etc. A prototype of GSM intelligent home control system is designed and manufactured by using SM8952AC25P, MT8870, TC35 modem and all kinds of home sensors.) Platform: |
Size: 14963712 |
Author:girl_lily |
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