sip_rfc2543 standardized documents

本文件内第三代合作伙伴计划 （3GPP TM），已经制定，并可能进一步阐述为 3GPP 的目的。 本文件尚未经过任何审批程序由 3GPP 组织伙伴并不予以实施。 此规范是为未来的发展工作范围内的 3GPP 只提供的。组织伙伴接受供任何这种规格的使用不承担任何责任。 规格和 3GPP TM 系统的执行情况的报告应获得通过 3GPP 组织伙伴的刊物办事处。

移动通信基本知识:从通信网的角度看，移动网可以看成是有线通信网的延伸，它由无线和有线两部分组成。无线部分提供用户终端的接入，利用有限的频率资源在空中可靠地传送话音和数据；有线部分完成网络功能，包括交换、用户管理、漫游、鉴权等，构成公众陆地移动通信网PLMN。从陆地移动通信的具体实现形式来分主要有模拟移动通信和数字移动通信这两部种。-Basic knowledge of mobile communications: From the perspective of communication networks, mobile networks can be seen as an extension of wired communication network, which is both wireless and wired components. Part of user terminals to provide wireless access, frequency of use of limited resources in the air and reliable transmission of voice and data wired part of the completion of network functions, including switching, subscriber management, roaming, authentication and so on, constitute a public land mobile communication network PLMN. From land-based mobile communications to the specific forms of the main points have analog and digital mobile communications that two kinds of mobile communication.

To show Gibbs phenomenon, using FFTs to sum Fourier Give the curve plot at the end of the simulation

在以往的关于多用户检测程序，给出的多是针对CDMA系统的。出于长期以来笔者对TD-SCDMA系统应用研究，在这里我进行了一些修改，内容如文：-In the past on the multi-user detection procedures are given for CDMA systems. For a long time writer on the TD-SCDMA system, applied research, I made some changes to the content such as text:

Unix 到 Newton通讯的程序 -Communication between Unix and Newton

计算机并口通讯程序-computer parallel port communication procedures

直接数字合成(DDS)技术具有信号频率分辨率高、控制灵活、可编程及任意波形输出等优 点-direct digital synthesis (DDS) technology with high resolution signal frequency, flexible control, and programmable arbitrary waveform output advantages

Serial communication

一种关于可信平台下身份认证技术的方案，直接匿名证明方案（DAA），该方案可实现匿名性。-A credible platform on authentication technologies, direct proof of the program Anonymous (DAA), the program can achieve anonymity.

对于做串口程序的人来说，简直就是雪中送炭-Serial port to do the procedure for anyone who is simply a temporary relief