Huawei 4G communication module BGA assembly

     The concept of 4G communication comes from the technologies of other wireless services, from Wireless Application Protocol, Global Pocket Wireless Service to 3G, 4G communication is a research topic beyond 2010, 4G communication is a system of systems that can utilize various wireless technology. 4G communication technology does not break away from the previous communication technology, but is based on traditional communication technology and uses some new communication technologies to continuously improve the network efficiency and functions of wireless communication.

Technical advantages

     If 2G and 3G communications are negligible for the development of human informatization, then the future 4G communications will give us real freedom of communication and will completely change our way of life and even social forms. The 4G communication currently being conceived has the following characteristics, and the 4G communication module produced by Kingford Technology has a particularly good effect of BGA assembly:

1. Faster communication speed

    Since the original purpose of people's research on 4G communication is to increase the rate of wireless access to the Internet by cellular phones and other mobile devices, the most impressive feature of 4G communication is that it has a faster wireless communication speed. Compared with the data transmission rate of the mobile communication system, the first-generation analog type only provides voice services; the transmission rate of the second-generation digital mobile communication system is only 9.6Kbps, up to 32Kbps, such as PHS; The data transmission rate can reach 2Mbps; experts predict that the fourth-generation mobile communication system can reach 10Mbps to 20Mbps, and even the highest speed can reach up to 100Mbps per second to transmit wireless information, which is equivalent to 1 of the transmission speed of current mobile phones. About ten thousand times.

2. Broader network spectrum

    In order to achieve 100Mbps transmission in 4G communication, communication operators must carry out substantial transformation and research on the basis of 3G communication network, so that the communication bandwidth of 4G network is much higher than that of the cellular system of 3G network. According to executives at AT&T, which studies 4G communications, it is estimated that each 4G channel will occupy 100MHz of spectrum, equivalent to 20 times that of a W-CDMA 3G network.

3. Communication is more flexible

    Strictly speaking, the functions of 4G mobile phones can no longer be simply classified as "telephones". After all, the transmission of voice data is only one of the functions of 4G mobile phones. Therefore, future 4G mobile phones should be regarded as a small mobile phone. Computers are gone, and 4G mobile phones will have even more amazing breakthroughs in terms of appearance and style. We can imagine that glasses, watches, cosmetic boxes, and travel shoes, on the premise of convenience and individuality, any one you can see Items may become 4G terminals, but we still don't know what to call it. The future 4G communication will enable us not only to communicate anytime and anywhere, but also to download and transfer data, pictures, and videos in two directions, and of course, to play games online with strangers we have never met. Maybe you will have the anguish of being permanently locked by the online positioning system, but compared with the convenience and security it provides based on the map, this is simply negligible.

4. Higher intelligent performance

    The intelligence of the fourth-generation mobile communication is higher, not only in the design and operation of 4G communication terminal equipment is intelligent, such as the dependence on menu and scrolling operations will be greatly reduced, more importantly, 4G mobile phones can achieve many unimaginable function. For example, a 4G mobile phone will be able to timely remind the owner of the mobile phone what to do or what not to do according to the environment, time and other set factors. The 4G mobile phone can directly download the movie theater box office data to the PDA. , these information can clearly display the current ticket sales situation and seat situation, and you can use this information to purchase movie tickets online; 4G mobile phones can be regarded as a portable TV for watching sports games All kinds of live broadcasts.

5. The compatibility performance is smoother

    To make 4G communication accepted by people as soon as possible, not only its powerful functions, but also the basis of existing communication should be considered, so that more existing communication users can easily transition with the least investment. to 4G communication. Therefore, from this perspective, the future fourth-generation mobile communication system should have the characteristics of global roaming, open interfaces, interconnection with various networks, diversified terminals, and smooth transition from the second generation.

6. Provide various value-added services

    4G communication did not evolve from a simple upgrade on the basis of 3G communication. Their core construction technologies are fundamentally different. The 3G mobile communication system mainly uses CDMA as the core technology, while the 4G mobile communication system technology uses regular Multitasking frequency division technology (OFDM) has attracted the most attention. With this technology, people can realize wireless communication multiplication services such as wireless local loop (WLL) and digital audio broadcasting (DAB); however, considering the differences with 3G communication Transitional, the fourth-generation mobile communication system will not only adopt OFDM technology in the future, CDMA technology will cooperate with OFDM technology in the fourth-generation mobile communication system to play a greater role, and even the future The fourth-generation mobile communication system will also have new integrated technologies such as OFDM/CDMA. The digital audio broadcasting mentioned above actually uses the OFDM/FDMA integrated technology, which also uses the combination of the two technologies. . Therefore, the future fourth-generation mobile communication system with OFDM as the core technology will also combine the advantages of the two technologies, and part of it will be an extended technology of CDMA.

7. Achieve higher quality multimedia communication

    Although the third-generation mobile communication system can also realize various multimedia communications, the future 4G communication can meet the high-speed data and high-resolution multimedia services that the third-generation mobile communication cannot achieve in terms of coverage, communication quality, and cost. The wireless multimedia communication service provided by the fourth-generation mobile communication system transmits a large amount of information including voice, data, and video through broadband channels. For this reason, the future fourth-generation mobile communication system is also called "multimedia mobile communication". ". The fourth-generation mobile communication is not only to cope with the increase in the number of users, but more importantly, it must meet the transmission requirements of multimedia, and of course, it also includes the requirements of communication quality. To sum up, first of all, it must be able to accommodate the huge number of users in the market, improve the poor quality of existing communication, and meet the requirements of high-speed data transmission.

8. Higher frequency usage efficiency

    Compared with the third-generation mobile communication technology, the fourth-generation mobile communication technology uses and introduces many powerful breakthrough technologies in the development process. For example, some optical fiber communication product companies introduce In addition to switching layer technology, this technology can cover different types of communication interfaces at the same time, that is to say, the fourth generation mainly uses routing technology (Routing)-based network architecture. The use of radio frequencies is much more efficient than second and third generation systems due to the use of several different technologies. At best, this efficiency could allow more people to do more things with the same amount of wireless spectrum as before, and do them quite quickly. Download speeds of 5Mbps to 10Mbps are possible, the researchers said.

9. Communication costs are cheaper

    Because 4G communication not only solves the compatibility problem with 3G communication, but also allows more existing communication users to easily upgrade to 4G communication, and 4G communication introduces many cutting-edge communication technologies, which ensure that 4G communication can provide a A very flexible system operation mode, so compared to other technologies, 4G communication is much easier and faster to deploy; at the same time, when building a 4G communication network system, communication operators will consider directly building on the infrastructure of the 3G communication network. On top of that, the method of gradual introduction is adopted, which can effectively reduce the cost of operators and users. According to researchers, 4G communications, such as wireless instant connectivity, will be cheaper than 3G communications for certain services.