Mobile Broadband

Applications supported by mobile devices have today become an important part of business and social life. The importance of providing high-speed data access to mobile subscribers is increasing. Thanks to our experience in IT market and comprehensive solutions, we ensure that our customers offer high quality and uninterrupted services to the end-users.

Mobil Backhaul

The mobile networks are in need of significant capacity as a result of increase in the use of smart devices that support applications consuming bandwidth, such as mobile e-mail, video and online games. At the same time, the number of mobile users has exceeded the number of stationary users. However, it is also a fact that increasing bandwidth did not bring revenue increase at the same rate.

Thus, operators have started searching for different application models to reduce operating expenses (OPEX) and increase return on investment (ROI). The most preferred model is converting existing networks into a single network that can provide all services. The operators have used many different technologies such as TDM, Frame Relay and ATM in their infrastructures so far and today they are focusing on the vision of "all-IP". They also started using IP NodeB and IP RNCs in their networks, which also support LTE/EPC infrastructures.

The solutions offered by Netaş allow operators to provide the 2G (TDM), 3G (ATM/IP) and 4G (IP) services over a single MPLS network.

4/5G Communication Solutions

Thanks to flexible, scalable and virtualized mobile core network (EPC), new generation IMS, AAA and VoIP and Unified Communication products (TAS/RCS/WebRTC Gateway), Netaş offers a rich 4.5G solution providing end-to-end voice and data transmission services.

The 4.5G products have been developed at the Netaş Kurtköy R&D Center which is the only 4.5G laboratory of Turkey other than the operator.

 

Services:

VoLTE

We offer enriched communication services to our customers including HD voice quality and conference, instant messaging and file sharing. These services use IP infrastructure for voice carrying over LTE technology and for mobile voice transmission.

VoWiFi

With the VoWifi solution, our customers can benefit from the infrastructure on which they can provide voice and SMS/MMS services over Wi-Fi access network. VoWifi allows smart phone users to access voice services with their own phone numbers by using Wi-Fi hotspots as base stations anywhere around the world. The solution allows operators to expand indoor coverage area with low cost and increase the number of active users in user-intense areas.

RCS

RCS allows smart phone users to benefit from advanced communication services such as messaging, file sharing and video calls in addition to the voice communication.

Netaş 4.5G solution offers 4.5G network functions (SGW, PGW, MME and EPDG) defined with standards over virtualized software platform and allows the flexibility and cost-effectiveness required by operators for mobile broadband services. Each product within the solution forms a strong foundation to provide mobile data services with telecommunication quality.

In addition to core network functions, Netaş also offers diameter based products in order to meet authentication and authorization needs on operator networks and to provide solutions to problems encountered by operators in processing diameter traffic. These problems can include complex network infrastructure, integration to current systems, scalability and diameter dependency among network components.

AAA (Authorization, Authentication and Accounting)

Netaş AAA Server has been developed as a local product to meet Authentication, Authorization and Accounting needs for accessing 4.5G networks through Wi-Fi connections.

DRS (Diameter Routing Server)

Diameter Routing Server (DRS) offers functions required in diameter signal traffic management such as central traffic management, scalability, reliability, network traffic routing, bottleneck management and reporting.

Netaş Baseband Module

  1. 3GPP Release 10 & Release 11
  2. Multiple Input Multiple Output (4x4 DL&UL MIMO)
  3. 5xCC DL Carrier Aggregation, 2xCC UL Carrier Aggregation
  4. CoMP (Coordinated Multi-Point)
  5. RAN Sharing
  6. ICIC (Inter Cell Interference Coordination), eICIC, feICIC
  7. Intra / Inter RAT Handover
  8. GPS, IEEE1588, SyncE Synchronization

Mechanical Features:

The 4.5G Baseband Device is compliant with mounting 19 inch rack. The Baseband Device height: 4U 177.5mm (7 in.), width: 447mm (19 in.), weight: 13 kg. To be supplied from -48VDC/14A power supplies.

Environmental Conditions:

  1. Operating temperature: -30 °C - +55 °C
    1. MIL-STD-810G: Method 502.5 Method II (Low temperature), Method 501.5 Method II (High temperature)
  2. Storage temperature range: -30 °C - +70 °C
    1. MIL-STD-810G: Method 502.5 Method I (Low temperature), Method 501.5 Method I (High temperature)
  3. Relative humidity: MIL-STD-810G: Fixed Temperature, Cycle B1 defined in Method 507.5 Method I (Induced (Storage & Transit) and Natural and Cycles)

Reliability Values:

  1. MTBF (hours): minimum 100,000
  2. MTTR: maximum 0.5 hours
  3. Availability: 0.99999
  4. Annual service downtime (minutes/year): 5,2560 minutes/year

Software Features

Physical Layer Software, MAC Layer, Scheduler, RLC, PDCP software, IPv4/IPv6, RRC, X2AP, S1AP protocol software are developed, together with hardware design of the Baseband Unit developed by Netaş. Some of the features are as follows:

Intra / Inter Handover;

During communications performed with user terminals actively receiving service, the signal quality may drop below a threshold value and the existing 4.5G network signals can fail to provide desired level of signal quality. In those cases, Intra / Inter Handover allows the user terminal to communicate over 3G and 2G systems through handover to provide service continuity.

2 Component Carrier Aggregation (40MHz);

This feature has been developed to provide service at higher speed with multiple carriers from the UL and/or DL direction to a user.

Multiple Input Multiple Output (2x2 DL MIMO, 2x4 DL MIMO, 4x2 DL MIMO, 4x4 DL MIMO, 2x2 UL MIMO, 2x4 UL MIMO, 4x4 UL MIMO); 

This refers to a radio term that means multiple input and multiple output. It is a multiple antenna technique, aiming to increase SNR and data speed by using multiple antennas at the transmitter and receiver.

Scheduling;

This process uses measurement results from UE to assign the sub-bands providing optimum channel status to the relevant UE.

Interference Rejection Combining;

This feature is implemented to correctly receive the signal, sent according to the interference and noise correlation values affecting each receiver antennas and channel values.

IPSec;

A security solution to provide firewall to IP based systems.

GPS, SyncE, IEEE1588v2 Synchronization;

These features ensure that all terminal units in the system are synchronized at a nanosecond level.

Enhanced Intercell Interference Coordination (eICIC);

This feature is launched with 3GPP Release 10. The feature has been developed to prevent both intercell interference and interference resulting from using same intracell frequency (intrafrequency), caused by repeated use of the same Resource Block (RB) groups in the same macro cell due to heterogeneous structure that started to be implemented with the LTE-Advanced.

Further Enhanced Intercell Interference Coordination (feICIC);

This feature has been launched with 3GPP Release 11 and aims to strengthen and optimize the performance of the eICIC concept.

Coordinated Multi-Point (CoMP);

This feature allows efficient transmission of high amounts of data for cooperative signal transmission-reception in downlink and uplink direction, improvement of the coverage area and increasing the throughput value for UEs on the cell border.

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