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signaling

fpga差分信號

LVDS：Low Voltage Differential signaling，低電壓差分信號。 LVDS傳輸支持速率一般在155Mbps（大約為77MHZ）以上。

標簽： 差分信號

上傳時間： 2015-03-04

上傳用戶：初夏淺淺時光
Cognitive+Wireless+Network

Cognitive radio has emerged as a promising technology for maximizing the utiliza- tion of the limited radio bandwidth while accommodating the increasing amount of services and applications in wireless networks. A cognitive radio (CR) transceiver is able to adapt to the dynamic radio environment and the network parameters to maximize the utilization of the limited radio resources while providing flexibility in wireless access. The key features of a CR transceiver are awareness of the radio envi- ronment (in terms of spectrum usage, power spectral density of transmitted/received signals, wireless protocol signaling) and intelligence.

標簽： Cognitive Wireless Network

上傳時間： 2020-05-26

上傳用戶：shancjb
UMTS+Performance+Measurement+A+Practical+Guide

Having dealt with in-depth analysis of SS#7, GSM and GPRS networks I started to monitor UTRAN interfaces approximately four years ago. Monitoring interfaces means decoding the data captured on the links and analysing how the different data segments and messages are related to each other. In general I wanted to trace all messages belonging to a single call to prove if the network elements and protocol entities involved worked fine or if there had been failures or if any kind of suspicious events had influenced the normal call proceeding or the call’s quality of service. Cases showing normal network behaviour have been documented in Kreher and Ruedebusch (UMTS signaling. John Wiley & Sons, Ltd, 2005), which provides examples for technical experts investigating call flows and network procedures.

標簽： Performance Measurement Practical Guide UMTS

上傳時間： 2020-06-01

上傳用戶：shancjb
Understanding+Optical+Communications

The use of light to send messages is not new. Fires were used for signaling in biblical times, smoke signals have been used for thousands of years and flashing lights have been used to communicate between warships at sea since the days of Lord Nelson. The idea of using glass fibre to carry an optical communications signal originated with Alexander Graham Bell. However this idea had to wait some 80 years for better glasses and low-cost electronics for it to become useful in practical situations.

標簽： Communications Understanding Optical

上傳時間： 2020-06-01

上傳用戶：shancjb
5G通信技術白皮書技術資料合集

5G通信技術白皮書技術資料合集摘要 5G 致力于應對 2020 后多樣化差異化業務的巨大挑戰，滿足超高速率、超低時延、高速移動、高能效和超高流量與連接數密度等多維能力指標。FuTURE 論壇 5G 特別興趣組（SIG）圍繞著“柔性、綠色、極速”的 5G 愿景，以“5+2”技術理念，重新思考 5G 網絡的設計原則： 1) 香農理論再思考（Rethink Shannon）：為無線通信系統開啟綠色之旅 2) 蜂窩再思考（Rethink Ring & Young）：蜂窩不再（no more cell） 3) 信令控制再思考（Rethink signaling & control）：讓網絡更智能 4) 天線再思考（Rethink antennas）：通過 SmarTIle 讓基站隱形 5) 頻譜空口再思考（Rethink spectrum & air interface）：

標簽： 5G通信

上傳時間： 2022-03-06

上傳用戶：
SiI9135芯片手冊

Introduction The Sil9135/Sil9135A HDMI Receiver with Enhanced Audio and Deep Color Outputs is a second-generation dual-input High Definition Multimedia Interface(HDMI)receiver. It is software-compatible with the Sil9133receiver, but adds audio support for DTS-HD and Dolby TrueHD. Digital televisions that can display 10-or 12-bit color depth can now provide the highest quality protected digital audio and video over a single cable. The Sil9135and Sil9135A devices, which are functionally identical, can receive Deep Color video up to 12-bit,1080p @60Hz. Backward compatibility with the DVI 1.0specification allows HDMI systems to connect to existing DVI 1.0 hosts, such as HD set-top boxes and PCs. Silicon Image HDMI receivers use the latest generation Transition Minimized Differential signaling(TMDS) core technology that runs at 25-225 MHz.The chip comes pre-programmed with High-bandwidth?

標簽： sii9135 芯片

上傳時間： 2022-06-25

上傳用戶：