SIMCOM公司SIM5320电信3G无线通讯模块AT命令手册
标签： SIM5320_AT命令手册
上传时间： 2015-07-10
上传用户：GP Lee
AD公司的接收芯片，芯片中包括混频器，放大器，限幅放大器。多用于基站的应用方面。
标签： AD608
上传时间： 2016-01-22
上传用户：dovelz
3G中核心算法KASUMI算法的实现 f9算法的实现 C++
标签： KASUMI F9 3G
上传时间： 2016-04-28
上传用户：xusidu
N7100,破解,基带,卡刷，N7100刷入4.4.x第三方rom后可能出现无法注册到网络，无3G信号时，刷入该基带，重启后即可。药到病除。
上传时间： 2016-05-09
上传用户：songziyan1986
主要仿真3G通讯中WCDMA的各种特性，非常的有用、环印下载
上传时间： 2018-03-14
上传用户：ygm2275202514
医疗设备向着便携和无线网络化两个趋势发展，本课题基于MSP430FG439对心电采集传感器进行了开发，并利用3G传输模块实现了心电信息的远距离无线传输。本装置实现了人体心电采集、波形显示和心率计算。得到的心电波形特征波明显，能够进行相关疾病的判断，具有功耗低、体积小、精度高、使用方便等特点。
上传时间： 2018-10-17
上传用户：cyyyyyy
In recent years, cellular voice networks have transformed into powerful packet-switched access networks for both voice communication and Internet access. Evolving Universal Mobile Telecommunication System (UMTS) networks and first Long Term Evolution (LTE) installations now deliver bandwidths of several megabits per second to individual users, and mobile access to the Internet from handheld devices and notebooks is no longer perceived as slower than a Digital Subscriber Line (DSL) or cable connection. Bandwidth and capacity demands, however, keep rising because of the increasing number of people using the networks and because of bandwidth-intensive applications such as video streaming. Thus, network manufacturers and network operators need to find ways to continuously increase the capacity and performance of their cellular networks while reducing the cost.
标签： BRINGING NETWORKS Beyond and 3G 4G
上传时间： 2020-05-26
上传用户：shancjb
During the past years, there has been a quickly rising interest in radio access tech- nologies for providing mobile as well as nomadic and fixed services for voice, video, and data. The difference in design, implementation, and use between telecom and datacom technologies is also getting more blurred. One example is cellular technologies from the telecom world being used for broadband data and wireless LAN from the datacom world being used for voice over IP.
上传时间： 2020-05-26
上传用户：shancjb
One traditional view of how wireless networks evolve is of a continuous, inevitable progres- sion to higher link speeds, combined with greater mobility over wider areas. This standpoint certainly captures the development from first and second generation cellular systems focused on voice support, and the early short-range wireless data networks, through to today’s 3G cellular and mobile broadband systems; there is every confidence that the trend will continue some way into the future.
上传时间： 2020-05-26
上传用户：shancjb
The rapid growth in mobile communications has led to an increasing demand for wide- band high data rate communications services. In recent years, Distributed Antenna Systems (DAS) has emerged as a promising candidate for future (beyond 3G or 4G) mobile communications, as illustrated by projects such as FRAMES and FuTURE. The architecture of DAS inherits and develops the concepts of pico- or micro-cell systems, where multiple distributed antennas or access points (AP) are connected to and con- trolled by a central unit.
标签： Distributed Antenna Systems
上传时间： 2020-05-27
上传用户：shancjb
