{"id":1993,"date":"2022-07-14T09:09:12","date_gmt":"2022-07-14T07:09:12","guid":{"rendered":"https:\/\/wavebyagc.com\/?p=1993"},"modified":"2023-10-19T13:42:09","modified_gmt":"2023-10-19T11:42:09","slug":"faq-about-mobile-connectivity","status":"publish","type":"post","link":"https:\/\/wavebyagc.com\/en\/faq-about-mobile-connectivity\/","title":{"rendered":"FAQ about mobile connectivity"},"content":{"rendered":"\n

Introduction about the mobile network<\/strong><\/h3>\n\n\n\n

In order to distribute the mobile signal the operators place a series of base stations on the territory. These antennas emit signals for 2G\/3G\/4G\/5G technologies in several frequency bands ranging from 800MHz to 6GHz. The mobile phone antennas are distributed evenly over the territory to ensure a homogeneous coverage.<\/p>\n\n\n\n

Operators use low frequency bands and high frequency bands to distribute the signal. The low bands are used to cover the territory, they propagate better and further but the associated quality of service is low and the number of users that can be addressed is lower, the high bands as for it propagate less well but give a better quality of service and allow to address more users. In terms of signal propagation, the signal from the base stations propagates like sound, the further away from the source the lower the signal.  The higher the frequency the stronger and faster the attenuation.<\/p>\n\n\n

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source : https:\/\/ir.kontron.ag\/5G_in_Iot__Update_on_AI_Neumann.pdf<\/a><\/p>\n\n\n\n

Operators size their network to have an acceptable signal strength outside and inside buildings. Operators combine low frequency and high frequency approaches to provide mobile coverage that can address enough users outdoors and indoors. In their design a reasonable attenuation of about 10dB is taken into account for buildings.<\/p>\n\n\n\n

At the technology level, several technologies coexist at the same time.<\/p>\n\n\n

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Impact of envelope attenuation<\/strong><\/h4>\n\n\n\n

Mobile equipment requires two important elements : signal strength and signal quality. Below a certain threshold, the mobile equipment does not detect any signal and does not work anymore.<\/p>\n\n\n

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Coverage problems can occur for recent buildings that strongly attenuate mobile waves (attenuation < 30dB). In this case the building is out of the assumptions of attenuation used to size the networks used by operators and problems may appear.<\/p>\n\n\n

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In this type of building the outdoor signal is good, but inside the signal is weak and at the limit of sensitivity of phones and often available only in low band. This translates for the end user into :<\/p>\n\n\n\n