Why did iota have bad internet? Mobile Internet from Yota is probably the worst and slowest Internet in my life

In this article, we will begin our acquaintance with base stations for broadband Internet access of the 4G standard. It is not as clearly presented as equipment for GSM networks, but there is still a small choice. Demand creates supply and Wimax creates demand.

Introduction

There is nothing unusual about the base stations. All technologies, be it Wimax, GSM, LTE, CDMA, use IP telephony technology. Only 4G communications already use OFDM technology. The DBTS 3900 is designed to work with the IEE 802.16e-2005 standard. It has a modular system and is perfectly installed - everything is good here. Also consists of an antenna, indoor unit and amplifiers. The feature that distinguishes it from its counterparts in terms of communication standards is its compact appearance (all Wimax antennas are much smaller than GSM, CDMA, etc.) and a GPS antenna. The GPS antenna serves to synchronize the reception and transmission of several sectors.

And so the base station consists of an internal unit (it controls all station controls). receives signals from the network and sends them to amplifiers and those, respectively, to the antenna. Well, what can slow down work so sharply, you ask?

Specifications

Let's take a look at the main technical characteristics of the base station 3900 (3900, 3703). Firstly, one antenna sector supports 512 users (not a thousand). Consequently, one station under ideal conditions will take on 1536 users. With a maximum work flow volume of 10k. If we have a bandwidth of 10 MHz. The user’s download speed can reach up to 30 Mbit/sec. And accordingly, if the bandwidth is 5 MHz. Then the user’s speed will drop by half and will be no more than 15 Mbit/sec.

Yota and Huawei DBTS 3900

So why is it slowing down - questions are pouring in from all sides?
We answer:
Yes, because we have at least 3000 users at our base stations
The stations certainly do not cost 3900, but their technical characteristics are lower.

According to official data, Yota is going to increase the number of base stations to 3000. We count and we get 4.5 million people. Do not forget that these are calculations for ideal conditions, and for ordinary cities with dense multi-story buildings, divide by 2. And for Sochi and Olympic venues, divide by 10.

DBS3900 base station overview

Details

DBS3900 is a distributed base station using Huawei's BTS platform. As a base station for a mobile communication system, the DBS3900 consists of a baseband unit (BBU) and a radio remote unit (RRU). BBU3900 is a base frequency processing unit. RF unit RRU3004 supports the operation of two/four radio transmitters.

The DBS3900 uses a remote RF module to meet networking requirements for capacity expansion, installation flexibility and upgradeability.

A CPRI interface is used between the RRU3004 and BBU3900 units, which allows the two modules to be connected using optical cables. This allows you to significantly reduce the costs of creating a car showroom, installing equipment and operating it.

The implementation of DBS3900 with distributed BTS will accelerate the development of mobile networks, ensure their greater compatibility with other networks, and also allow the use of broadband technologies.

BBU3900

The BBU3900 is an indoor baseband processing unit that provides centralized operation and maintenance control and signaling processing of the entire base station system and provides a timing reference signal. The unit also has physical interfaces for connecting to the BSC and RRU3004. The BBU3900 is installed in a 2 U cabinet with a height and width of 47.5 cm. It can be installed in a 19" cabinet or mounted on a wall.

The BBU3900 includes additional cards that provide environmental monitoring, monitoring of the Abis interface and GPRS synchronization signals. The BBU3900 is a compact unit that is easy to install. Consumes a small amount of power and provides a full range of services.

RRU3004

RRU3004 – remote radio frequency unit. Provides processing of fundamental frequency and radio frequency signals. One RRU3004 performs the function of two transceivers. If two RRU3004 modules are installed in an RRU3004 sub-rack, they perform the function of four transceivers.
One RRU3004 module provides two transceivers. Two RRU3004 modules installed in the RRU3004 subrack perform the function of four transceivers.

The RRU3004 is lightweight and easy to install. The RRU3004 sub-stand can be installed on a steel mast, wall or concrete base.

DBS3900 Application Scenarios

A flexible combination of RRU3004 and BBU3900 modules is possible, depending on the actual requirements.

BBU:

Indoors
Mounts on the wall or in a 19" cabinet, RRU3004, APM or OFB cabinet.

RRU:

Indoor/outdoor
Distributed coverage in cities, highways and railways

Coverage Features

DBS3900 offers the following coverage benefits:
The RRU3004 supports cascading of three RRUs. One RRU module is installed at a distance of up to 40 km from the BBU.
The static sensitivity of the TCH/FS channel is -113 dBm (typical value at normal temperature).
RRU3004 support RRU3004 technology.
The maximum output power of RRU3004 reaches 40 W (900M) or 30 W (1800M).
Maximum configuration up to 12 cells and support for multi-band network.

Distributed transmission and Antenna hopping are supported.

Capacity

The BBU3900 supports 72 transceivers.
Abis over IP.

Networking capabilities

1. E1/T1, optical FE, support radio relay and satellite transmission.
2. Topologies supported: star, tree, chain, ring and mixed topologies.
3. Flex Abis support.
4. GSM and UMTS can use BBU3900.
5. Optimized transmission using the Abis interface. Support detection and recovery of free BTS and BSC packages.

Synchronization

When the synchronization system operates in internal oscillation only mode, the system can operate continuously for 7 days.
Support various synchronization modes: support synchronization with synchronization signal dedicated from Abis interface, support synchronization with GPS system, synchronization with external 2 MHz BITS source.

Multi-range application

• The RRU3004 operates in the 1800 MHz and 900 MHz bands.
• High adaptation to environmental conditions

BBU

BBU is characterized by high adaptability to environmental conditions:
Operating temperature range: –20C ~ +55C.
The BBU can operate at a wide range of operating voltages: –38.4 V DC ~ –57 V DC (nominal voltage –48 V DC).
The power supply used converts 220 V AC to –48 V DC for BBU operation

RRU

RRU is equipment that can operate under different environmental conditions. The module is characterized by adaptability to environmental conditions:
The RRU has a closed integrated design. It meets the waterproof standard (IP65). Protection measures against moisture, mold and salt fog meet Class 1 specifications.
RRU operating temperature range: –40C ~ +50C.
The RRU can operate at a wide range of operating voltages: –36 V DC ~ –57 V DC (nominal voltage –48 V DC).
The power supply used converts 220 V AC to –48 V DC for RRU operation.

Antennas

Remote Electric Tilt (RET) antenna support.

The use of RET antennas allows you to customize network coverage by adjusting the angle of the antennas in the car room. This will save operating and maintenance costs.
Support for dual-polarization antennas, allowing you to reduce the number of antennas in a cell.
AISG1.1 protocol support

Advantages

Fast network deployment

Separate use of BBUs and RRUs, compact design and distributed installation allow you to save site space and mount the BBU and RRU virtually anywhere.
Distributed installation also allows for ease of transport and rapid network deployment.

Low cost

The BBU can be installed anywhere on a wall or on a concrete base. The BBU is also installed inside the BTS, transmission devices or in the power system when installed outdoors.
The RRU is installed near the antennas. This avoids the cost of purchasing and installing cables and feeders.

High reliability

Each RRU provides two high-speed CPRI ports to enable interoperability between the RRU and BBU in a ring topology. One additional CPRI port provides a redundant link between the BBU and the RRU.
Two RRU3004 modules can be installed in one sub-rack to support distributed transmission, providing higher capacity and more carriers. If one of the RRU3004 working modules fails, the backup one provides services in the cell.

MS operation at high speeds

DBS3900 ensures the operation of mobile stations at high speeds of transport (trains, cars, etc.), up to 400 km/h.

Evolution

DBS3900 supports the evolution from GERAN to LTE.
DBS3900 operates on the unified BTS platform and enables the evolution from 2G to 3G.

In 2017, the mobile operator Yota radically changed all its tariff plans, completely abandoning tariff plans with unlimited mobile Internet for smartphones. After the introduction of new tariffs, users noticed that the cost of all operator services had increased significantly, but their quality had dropped significantly. Not so long ago, the editors of the site wrote that, and most of the reviews are negative.

After analyzing reviews of the Yota application in the Google Play store for the Android platform, it turned out that for every one good review there are 2-3 bad ones. However, the rating of the entire application is quite positive, but if you look at messages from real subscribers over the past couple of weeks, you will notice a lot of negative reviews. Many desperate subscribers, disappointed with the quality of services of their once favorite operator, told the terrible truth about the speed of mobile Internet and the “old unlimited”, which the company is trying in every possible way to eradicate.

In the last few weeks, Yota subscribers have been actively writing in reviews of the application of the same name in the Google Play store that the speed available to the mobile Internet on old tariff plans, which still had real unlimited unlimited, has dropped many times over. Some people can’t even update apps on their smartphones, and they can even forget about watching HD videos online.

A Yota employee responds to some reviews using a template. It claims that the speed available does not depend on the SIM card or data plan. However, most users do not believe this at all, since on tariffs with the “old unlimited” everything works so poorly that sometimes it is not even possible to communicate by voice via instant messengers. Many subscribers are sure that the operator deliberately “cuts” the connection speed, limiting it to a minimum, in order to force them to switch to new tariff plans, where no one reports such a problem.

In particular, Yota operator subscriber Maxim Kalinin claims that the speed of mobile Internet on the “old unlimited” download ranges from 1 to 3 Mbit/s, and for upload barely reaches 0.5 Mbit/s. In order to verify the plausibility of his hypothesis, he installed a SIM card in the same smartphone with a new tariff plan, where you have to pay for every gigabyte of Internet traffic. As a result, in his words, the speed of mobile Internet instantly increased to 30 Mbit/s, that is, more than 10 times.

In addition, desperate Yota subscribers also told the terrible truth about the instability of the connection. It is noted that if there is a large crowd of people in some place, then the speed of the 4G LTE Internet drops to 2G or even lower, which leads to an almost complete lack of access to the network. Some write that technical support, which takes a very long time to respond, recommends downloading some files or updating applications at a time when the load on the base station is minimal, that is, at night, when everyone is sleeping.

From all this, there is a clear opinion that the mobile operator Yota is deliberately “cutting” the speed of mobile Internet on tariff plans with the “old unlimited”, which was available for connection last year. This is done intentionally so that subscribers switch to new tariffs with limited Internet traffic, which is much more profitable for the operator.

In addition, since Yota operates on the infrastructure of the MegaFon operator, its subscribers most likely receive bandwidth for data and voice transmission last, which leads to critical problems with the unavailability of mobile Internet and voice services. It is because of this that in some places there may be no network access at all, although the smartphone will show a full reception antenna.

The editors of the site are absolutely neutral towards the Yota mobile operator and only provide real facts about what desperate subscribers are dissatisfied with. Anyone can check the accuracy of this information by simply looking at the latest reviews for the application of the same name in the Google Play store.

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05.05.2015

Many who have used or are using Yota unlimited internet are faced with the problem of a weak signal, which leads to low data download speeds. This is, of course, upsetting and frustrating. It even happens that it seemed to be normal before, but now the signal is bad. What to do if the Iota signal is weak, and how to strengthen it?

Let's look at the causes of the problem and ways to solve it.

What to do if the Iota signal is weak?

1. Try to move the modem closer to the window, preferably in the direction of the Yota base station. This may require a USB extension cable. It is not recommended to use a USB extension cable longer than 5 meters; in addition, cheap USB cables may not work with the modem at all.
2. Try moving the modem to another room, to another floor. Thick walls, especially brick and reinforced concrete, hinder signal propagation.
3. Use special . In this case, the panel antenna will help to catch and amplify the scattered signal, and the parabolic antenna will help tune in to the base station at a great distance. It is recommended to use antennas with MIMO technology, because... this allows you to catch a signal simultaneously in the horizontal and vertical planes.

Note that the antenna is a passive element and does not have a 4G LTE amplifier. Yota signal amplification is achieved only by changing the antenna radiation pattern and more accurately focusing the signal. A quantitative measure of the efficiency of an antenna is the gain factor (GC). The more antenna gain, the narrower its radiation pattern and the more difficult it will be to point such an antenna exactly at the base station. Moreover, it is necessary to tune the antenna in two planes: horizontal and vertical.

To accurately assess the signal, as well as select the necessary equipment for Yota signal amplification It’s worth contacting specialists. We offer the service " ".

Mobile Internet sometimes works well, and sometimes it works very poorly. We can endlessly talk about the fact that the best way out of a situation with poor wireless connection quality is to connect through a wired provider. But in some cases this is not possible. Yes, and on the street it can be very difficult to manage without communication. Let's see what needs to be done if Yota Internet does not work on your phone, tablet or modem.

Understanding mobile devices

A smartphone and a tablet are practically the same thing, the only difference is the size of the display. Therefore, our instructions are equally suitable for both mobile devices. It is on them that users may encounter problems with the Internet - it completely disappears or freezes, incredibly getting on the nerves of subscribers. Let's look at a few main reasons.

Weak signal from Yota network

Poor Yota LTE 4G reception or unstable 3G signal reception always leads to an unstable Internet connection. In this case, mobile devices switch to second-generation networks, from which it is generally impossible to achieve normal speeds - a maximum of several tens of kilobits, and sometimes even less. The reception indicator on your phone allows you to measure the signal level, but you shouldn’t count on it - it has low accuracy.

If the Internet disappears due to a low signal, you can do the following:

• Return to the zone of reliable reception, where the Internet from Yota worked normally.
• Try switching your phone to forced 3G or 4G mode - sometimes this helps.
• Try rebooting the phone.

It is difficult to improve reception on a phone, because it is not a modem that can be installed at the focus of a store-bought antenna. And if it shows "No Signal" or switches to 2G mode, you should go back to where there is a normal signal.

Base station load

Problems with Yota may arise due to the fault of the operator itself. There are several reasons for the slow speed:

• There is a problem with the operator's equipment - you will have to wait until the situation is corrected.
• High load on Yota base stations - the quality of the Internet directly depends on the load on the network.
• Maintenance work may be carried out at one of the base stations - during this time, interruptions in the Internet are possible.

Very rarely problems arise on one specific number - others work fine at this time. In this case, you need to call Yota support and report that the Internet does not work on your phone. Describe the problem in as much detail as possible, force the consultant to transfer the problem to technical specialists.

Features of the network

The Internet works slowly, the phone does not load videos well or does not load any files at all - all this often indicates that the Yota network imposes an artificial connection restriction. This is often observed on modems and routers, but sometimes noticeable “brakes” are applied to handsets. It is impossible to do anything about this - these are the features of Yota and all cellular networks.

Understanding modems and routers

Modems and routers work in fourth-generation Yota networks; they do not work in networks of other generations. This is probably due to some kind of load distribution, so as not to overload the networks of other generations, where hundreds of thousands of handsets and tablets are registered. Let's see what problems can arise with Yota modems and routers.

No Iota network or weak signal

If the modem does not receive Yota 4G, then there will be no Internet. Communication problems most often arise in areas remote from large cities. The low signal strength of Yota leads to a lack of coverage where its presence is indicated on official maps. Signal statistics are shown on the modem status page - this is the SINR and RSRP signal. The higher the numbers, the better the reception of the Yota network. A bad signal needs to be amplified.

The following solutions will help improve Yota 4G LTE Internet reception:

• Moving the modem to an area with a good signal (closer to the window or to the second floor).
• Installing the modem at the focus of the indoor antenna - the statistics page will help you check the Yota signal. If the device is installed correctly and pointed towards nearby base stations, the signal strength numbers should increase.
• Connecting external antennas to the modem is the best option to help improve poor internet from Yota.

The last method is most effective.

There are many specialized companies offering comprehensive solutions for installing receiving and transmitting equipment - they allow you to connect to the Internet at a distance of up to 40 km from the nearest base stations.

You can complain about the low signal strength of Yota to the operator's help desk. But this rarely leads to any results (unless the problem is widespread).

Features of the network

Iota does not work - the modem is connected, but in general the Internet does not work. The problem may lie in the use of torrents and file-sharing networks. The operator does not hide the fact that it imposes restrictions on the operation of these protocols. There is only one way out - to deceive the operator by encrypting the traffic in a torrent client or via a VPN.

But even in the latter case there can be problems - the operator struggles with any high load. According to some reports, subscribers experience problems even when watching videos frequently. And if your Yota connection is not working, it is quite possible that you are putting a high load on the network - that’s why the Internet is not working.