SIMCOM公司SIM5320電信3G無線通訊模塊AT命令手冊
標簽： SIM5320_AT命令手冊
上傳時間： 2015-07-10
上傳用戶：GP Lee
AD公司的接收芯片，芯片中包括混頻器，放大器，限幅放大器。多用于基站的應用方面。
標簽： AD608
上傳時間： 2016-01-22
上傳用戶：dovelz
3G中核心算法KASUMI算法的實現 f9算法的實現 C++
標簽： KASUMI F9 3G
上傳時間： 2016-04-28
上傳用戶：xusidu
N7100,破解,基帶,卡刷，N7100刷入4.4.x第三方rom后可能出現無法注冊到網絡，無3G信號時，刷入該基帶，重啟后即可。藥到病除。
上傳時間： 2016-05-09
上傳用戶：songziyan1986
主要仿真3G通訊中WCDMA的各種特性，非常的有用、環印下載
上傳時間： 2018-03-14
上傳用戶：ygm2275202514
醫療設備向著便攜和無線網絡化兩個趨勢發展，本課題基于MSP430FG439對心電采集傳感器進行了開發，并利用3G傳輸模塊實現了心電信息的遠距離無線傳輸。本裝置實現了人體心電采集、波形顯示和心率計算。得到的心電波形特征波明顯，能夠進行相關疾病的判斷，具有功耗低、體積小、精度高、使用方便等特點。
上傳時間： 2018-10-17
上傳用戶：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.
標簽： BRINGING NETWORKS Beyond and 3G 4G
上傳時間： 2020-05-26
上傳用戶：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.
上傳時間： 2020-05-26
上傳用戶：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.
上傳時間： 2020-05-26
上傳用戶：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.
標簽： Distributed Antenna Systems
上傳時間： 2020-05-27
上傳用戶：shancjb
