First, the access network failure showed no signal, it may be up or down severely disrupted, it could be a hardware failure. 4g cell phone jammer
Second, the phone problem, one is not inserted SIM card or SIM card is not inserted. 2, cell phone reception or logic circuit in question 3, the software problem.
Third, the weak coverage very general, very often there is a cell phone signal. Generally in the mountains there is no base or underground shelter and other outside signals not get a place, the phone will not signal.
Fourth, without the leading cause frequent switching cell, but not lead to frequent cell reselection, the described problem. Frequent cell reselection easily lead position update fails, within not find a suitable cell phone showed no signal this time . 4g cell phone jammer
4g cell phone jammer Mobile base station power system is one of the main equipment and transmission equipment matching support system, involving power machinery, chemical, electronics, communications and automatic control technology, computer applications, and other professional disciplines of knowledge. Its purpose is to ensure the maintenance of communication equipment achieve sustained, steady and reliable source of energy, providing a normal operating environment for communications equipment, ensure the security of the system. In this regard, maintenance personnel need to have a certain expertise.
More types of power supplies, influenced by external factors, if not force maintenance, equipment overall failure rate will be high, the loss of utility power and environment monitoring systems, operating costs large base of insecurity more. To reduce operating costs, prevent early battery scrap, are carried out on the base station mains power supply to maintain the environment and focus on the analysis and proposed solutions.
A base station mains environmental factors
In the entire communications industry, the environment is more complex mobile communication base stations, construction of electricity due to the introduction of environmental conditions limit the base station, the construction of the configuration requirements are different, maintenance requirements vary, such as the number of base stations built on tall buildings or mountains . Objectively speaking, the base station mains switching office environment mostly not demanding, but higher quality demands on the battery, which gives the battery pack configuration, maintenance and management adds many difficulties, if maintained properly, it will cause the battery pack early failure. 4g cell phone jammer
(A) a base station tower
Such change in the base station is, in general, more stable power supply. Mains outage time is longer affect two factors: more intense when urban energy, the electricity sector of urban pressure load, the problem generally occurs in the summer, the client phone down, mains failure occurs, such cases are mostly owners no captive diesel generator, fault time is generally not more than 24h. For such problems, should be taken in the dynamic environment monitoring system with a DC load restrictions under measures to prevent battery discharge, battery maintenance charging strengthen afterwards.
(2) high mountain station
Refers to the base station away from the rural hills of the city, such use of rural power base, the higher power requirements of the building to the city. I believe that the construction of such a base should be used to introduce higher electricity manner in accordance with local conditions and security conditions, the best conditions to introduce the use of 10kV high-voltage electricity. In rural electricity supply, high voltage electricity introduces a 380V mains introduction of stable and little affected by human factors. If possible, you can configure an automatic generator set, in order to achieve the AC power automation. The base station is located in the rural hills of inconvenience due to the movement of oil machine access for power generation, automatic generation base station to configure a group, due to electricity problems arising from over-discharge case, coupled with problems with the dynamic environment monitoring system, the system can also be a timely manner. This ensures that the introduction of mains stable, reliable and guarantee smooth communication. 4g cell phone jammer
(3) The base station typically
Whatever station construction should pay attention to the introduction of electricity, electricity introducing any one base station will experience a from construction to maintenance, and further optimize the improvement process according to the local mains conditions, to ensure that when the mains is blocked energy reliable access to fixed or mobile oil machine oil on the battery pack. Therefore, the mobile diesel generator access should establish a "mobile diesel generator system" to ensure that the environment in cooperation with power monitoring system, timely, reliable and safe operation, good battery maintenance.
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