Precision wireless network coverage trends

With the development of mobile communication, users are increasingly demanding on the depth and breadth of coverage. At the same time, the quality of mobile communication in indoor areas has become increasingly important to operators and users. In particular, with the development of mobile communication applications and services, the probability of business occurrence in the room is further increased. Indoor Coverage has become an important way for operators to improve service quality and increase business volume. Traditional indoor distribution systems are designed to solve large-scale indoor blind spots and areas with weak signals. Traditional indoor distribution systems cannot completely solve the problems in areas with weak signals of less than 100 m². This is because, first, the operator does not have so many resources to reach any region, and the other is to be affected by various factors such as cost and engineering. Therefore, these small blocks of weak signal areas become the final blind spots of mobile communication systems. With the further development of network coverage, operators should begin to find solutions for blind spots in these tiny regions.

Due to the characteristics of the Radio Wave Propagation, the loss of the radio wave penetrating wall is large, generally more than 10 dB. If it is a high frequency system, the loss of the radio wave penetrating building can be more than 20 dB. Based on the characteristics of the Radio Wave Propagation, we can know that even if the outdoor area is well covered, in the room, the blocks of buildings make the small area with weak signals still exist widely.

How can we solve this problem? An indoor distribution system is used to solve the problem. However, due to resource, cost, interference, system and Engineering Constraints, using this solution to solve indoor coverage in small areas cannot solve all problems. Another solution is to increase the number of base stations, or increase the coverage of base stations, and use the addition of outdoor coverage to solve the weak indoor signal areas in this small area. This solution is costly. First, it will not completely achieve the effect. In addition to the difficult solution to the site address problem, the over-encrypted base stations will also cause more interference to the system network. It should be pointed out that only increasing the transmit power of the base station cannot solve this problem, because this method cannot solve the uplink coverage, to solve overwriting, both the upstream and downstream links must be resolved.

So how can we solve the coverage of Small-Block areas? In terms of system equipment, there are low-power home base stations (such as MW flying cell femtocell). Such base stations can not only cover small areas, it can also meet users' big data business needs. Due to cost, transmission and various factors, low-power residential base stations can only solve indoor coverage problems in some small areas. As a result, an application that solves the problem of micro-cell coverage is shown. Such a device should have no need to transmit resources, it also provides features such as low power, low gain, low cost, intelligent protection, reverse shutdown, self-excitation detection, and easy installation, this is a micro-power mobile communication wireless signal enhancement system that solves blind spots in small areas or areas with weak signals.

Some Basic indicators of such equipment can be obtained from the above. The downstream RF power required for micro-cell coverage is generally 10 mw (10dBm, therefore, the device gain can be controlled at around 50 dB, so the cost of such equipment is low. Because the system requires overload protection and self-excitation prevention, the equipment should also have intelligent protection, reverse shutdown, and self-excitation detection functions.

Consider the impact of such devices on mobile networks. The device gain and power are low, especially the uplink power can be controlled below 1 mw (0 dBm, this is much smaller than the maximum transmit power of a mobile phone of 200 mw (20dBm). Therefore, the device has little uplink interference with the system. In this way, such a wireless signal booster can be regarded as an ordinary terminal's interference magnitude. If the self-excitation is well controlled, the impact of such devices on the network is basically equivalent to the interference volume of ordinary mobile terminals.

Based on the above analysis, we can find the typical application scenarios covered by small areas:

1. the wireless public phone signal booster is mainly used for wireless public phone calls and so on. It is suitable for areas with frequent wireless public calls and can further promote the development of wireless public phone services, this solution can greatly increase the system traffic in the application area;

2. Mobile phone companions are mainly used for indoor buildings in the lower floors of intensive buildings and personal applications in urban villages. This solution focuses on personal applications;

3. Applications of small places and high traffic indoor areas, such as small meeting rooms, waiter lounge, small elevators, and other areas with high personnel density and urgent demands for communication services, the signal booster can be used to absorb more mobile communication traffic;

4. Applications in small mobile vehicles, such as small vessels and mobile vehicles in the near sea and inland rivers, have a lot of business application requirements and require wireless signal coverage. The application of the signal booster not only meets the needs of voice services but also meets the needs of many data services in these locations, especially high-speed data services;

5. Applications of 3G high data services, due to the fact that some 3G networks are designed to provide continuous outdoor coverage at the highest rate. For example, WCDMA is designed to achieve continuous coverage of 64 K data services, therefore, on the edge of a residential area, users cannot use services at the highest rate. In indoor areas without indoor coverage, areas that cannot enjoy the highest-speed services will be larger (more than 30%). This situation will affect users' perception of 3G services to a certain extent. The small-power signal booster of the 3G system can improve this situation.

Advantages of using a micro-power wireless signal booster: This improves the wireless coverage of the network, basically solves the blind spots of network coverage, and features low investment, fast effect, and easy installation; this series of solutions are highly targeted to target users. The coverage of small hotspot areas can greatly increase the business volume, increase revenue for operators, and further increase users' awareness of the operator's network and brand; for 3G systems, 64 K or K is used for continuous coverage. Due to the characteristics of the CDMA system, service coverage at a higher rate will result in large holes, therefore, the system can solve the continuous use of high-speed business problems for some users. If interference can be well controlled, this micro-power signal enhancement system will certainly provide more help to operators and users. Another benefit to the application of such products is the increased wireless coverage, which greatly reduces the uplink power of mobile terminals and the radiation of mobile phones to human body.

The motive power of technological application comes from the market demand, and the market demand comes from the user's business needs. Due to the urgent demand for business applications, some users have used devices that are similar to small area coverage. As the competition between operators becomes more intense, network coverage will directly affect users' perception of operators, the coverage of tiny areas has become the last undeveloped area of the mobile communication wireless network. Especially when we enter the 3G era, the regions and assurance measures for higher application rates will gradually increase as competition increases. A solution cannot solve all problems, multiple Solutions can make the network more active. The development of mobile communication technology is comprehensive, and a technological breakthrough will inevitably drive the development of other network technologies. A variety of multi-technology solutions are also the development trend of network technology. The tiny area coverage solution will certainly serve the majority of users in an all-round way together with other technical means.

Mobile communication networks are always the trade-offs between various factors. Only better is not the best. The tiny area coverage solution brings many benefits to operators, and the impact on the network can also be controlled within a very small range. Just like the distribution of direct stations and indoors, because of the urgency of the user's initial use of mobile communication services, the original distribution of direct stations and indoors is built by the user spontaneously, however, this construction method affects the performance of the entire mobile communication network. After that, the entire network level was improved and guaranteed only when it was switched to construction by a carrier. The wireless signal booster is also used spontaneously by some users and has not been well regulated. If you let yourself stream, it may affect the network, carriers and relevant departments should also study and manage this, and turn the congestion into guidance, from passive to active, from harmful to the network, to help the network form a refined coverage, it enables the micro-power and small-area coverage solution to be effectively applied and play a positive and positive effect.

At present, the communication market has changed from extensive management to refined marketing. Operators also pay more attention to user experience, and have focused on user service management from a simple focus on ARPU value to a refined and comprehensive focus on user information. As a result, refined network layout and refined network coverage have become inevitable for the development of the network. The coverage solution for micro-power tiny areas helps the network achieve more refined coverage, it will inevitably attract the attention of all parties. Micro-power and small-region coverage solutions will become an indispensable and effective means for the mobile communication network to be refined and fully covered. It is foreseeable that such a micro-power coverage solution for small areas may have a place in the future mobile communication network and play an irreplaceable role.

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