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Observing my cellphone switch towers

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Re: Observing my cellphone switch towers

#3
How do i do this myself now?

I always have put my phone in air plane mode when i was in a train due to the modem consuming a lot more energy.

I always assumed and still doe its due switching towers and less connecitivy which means using more power.

Whenever people argue that public transport doesn't need wifi i would argue against it due to power usage and also for more accessablity of the internet in general.

Re: Observing my cellphone switch towers

#7
post #6

> Along the way, five towers and nine cells (a.k.a eNB for Evolved NodeB) What does this mean? Whats the diff between tower and cell?

He explains this two sentences later:

>- Several cellIDs map to the same eNB lat/long coordinates. That's because the antennas mounted on an eNB don't have 360° coverage. The angle and range of each antenna carves the space into pizza slice shaped cells.

Re: Observing my cellphone switch towers

#8
post #6

> Along the way, five towers and nine cells (a.k.a eNB for Evolved NodeB) What does this mean? Whats the diff between tower and cell?

It's explained in the article, one tower can have multiple antennas (author found out they're typically set at 120°) on a single mast. Each antenna is then a cell, altough mounted on a single tower.

Re: Observing my cellphone switch towers

#9
post #6

> Along the way, five towers and nine cells (a.k.a eNB for Evolved NodeB) What does this mean? Whats the diff between tower and cell?

Towers are just locations of at least one set of sender and receiver. There can be more than one set of these at a given location, meaning that more than one cell can originate from a single tower.

The first graphic visualizes this. Recption of the same cell is indicated by the same color there, while towers are at the points that these colored cones radiate from. Several cones of different colors start at the same points, visualizing that there are towers that are providing more than one cell. Observe that the reception can jump back and forth between the same cells as can be seen on the brown and blue colored cells in the top left corner of the graphic.

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