The intellectual electric wire netting of China passes the construction of the trials and hardships of decades, has already begun to take shape, become communication network of grade separation through the fact that many kinds of communication means such as the satellite, microwave, signal carrier, optical cable are constructed. ... Read more
The intellectual electric wire netting of China passes the construction of the trials and hardships of decades, has already begun to take shape, become communication network of grade separation through the fact that many kinds of communication means such as the satellite, microwave, signal carrier, optical cable are constructed. ... Read more
At present, the intellectual home furnishing has already occupied certain market share on the Chinese market, compared with the situation that the wireless communication way in foreign countries occupies the monopoly status, the customer of China is often because of various reasons, for example systematic stability, dependability, have still adopted the wired intellectual home furnishing solution of the traditional comprehensive wiring way. ... Read more
World Conference on wireless communication has already entered the third week at present in the 2012 when Geneva opened of Switzerland on January 23. It is reported, during two following weeks, the representatives participating in the conference of various countries will increase a great deal of topics such as frequency spectrum and discuss to the international mobile communication system.
As to this, worker letter portion the intersection of respect and relevant personage say from the intersection of China Mobile and systematic current situation of the development, future technical application, the intersection of manufacture and the intersection of industry and the intersection of person who develop and the intersection of and comprehensive analysis delegation, the position of participating the meeting clearly, strive for the development space of future for the industry of China Mobile to the maximum extent.
It is reported until the past two week discuss, the China delegation, according to the goal of the prediction scheme just now, participate in the research of every topic in an all-round way to discuss, make great efforts to carry on the work around the relevant topic of China’s benefit especially, make the preliminary achievement on some topics.
Concern the intersection of Chinese and the intersection of satellite and meteorological phenomena, the intersection of ground and radar system, aquatic the intersection of traffic and the intersection of communication and the intersection of person who navigate and business, output the file to already read and review through the conference with the topic frequently, its result basically accords with the Chinese prediction scheme goal. Among them, have increased the meteorological business of the global satellite in 7850-7900MHz frequency band emptily to the ground Mainly divide, have increased the radiolocation business to divide in 154-156MHz frequency band, it is significant not to be a static orbit meteorological satelliter, future development which surveys the ground radar system of celestial body,etc. to China separately.
This World Conference on wireless communication lasts four weeks, meeting relevant topics and final results will concern using the rights and interests of radio frequency spectrum and satellite orbit resource of various countries directly, to communication, broadcast, traffic, meteorological phenomena, aviation, spaceflight, space remote sensing survey and satellite navigate localization, radar the intersection of radio and development of business exert an important influence.
... Read moreWireless communication Wireless communication It is the characteristic that can spread in the free space with the electromagnetic wave signal that carries on a communication way of information exchange, in the communication field of information in recent years, it is the wireless communication to be with the fastest developing speed, employ the widest one. The wireless communication that is realized in moving is generally called mobile communication again, people call the two jointly wireless mobile communication. ... Read more
Summary: This text designs Gbps wireless communication base station system facing mobile communication standard in the future on the basis of Virtex-5 FPGA, can have a complete one person who dispose again, can finish MIMO, OFDM, LDPC complicated signal punish algorithm, realize the wireless communication of 1Gbps speed. ... Read more
With the development of information technology, especially the E-business E-Commerce developed in application of Internet technology It is a kind of totally brand-new commercial means, it changes the trade way in people’s traditional commercial activity and technology of circulating fundamentally, have a far-reaching impact on social economic development and commercial activity. With the development of the swift and violent progressive drive E-business of information technology and communication, also challenge for enterprise’s organizational change. Wireless development of communication make mobile e-business Mobile Commerce, M-Commerce Arise at the historic moment. The mobile e-business refers to by the mobile phone, mobile communication equipment such as the beeper, palmtop computer, notebook computer bind the E-business of realizing the commercial trade with wireless technology of surfing the Net. High growth and information of the terminal device visit the increase day by day of the demand following moving, no one can underestimate the enormous market prospect of the mobile e-business. The mobile e-business is becoming the operation new mode of commercial affair of fashion of international economy, numerous applied innovation and value-added service will bring the limitless business opportunity to enterprises. ... Read more
WiMAX or WLAN sudden average power measurement that signals is to signify the wireless communication device such as chip group, PC card, amplifier module or mobile phone One basic parameter. Device manufacturers meet the increasingly many difficulty in choosing the appropriate power survey tool. They need to carry on fast but accurate power measurement to the broadband WiMAX and WLAN signal, also possess and only occur abruptly to launching the ability that the pulse measures. ... Read more
MIMO technology in 3 wireless communication systems ... Read more
