LTE, EPC & Converged Mobile Backhaul

The Magic of Converged Mobile Backhaul for LTE

 

 
Service providers are revamping their Backhaul strategies with the deployment of  LTE and LTE-Advanced, and with an eye on the real cost of capacity provided by Packet Microwave as one of the most cost-effective and rapid rollout solution to LTE backhaul.

Packet Microwave is the Next Generation microwave radios supporting ‘All-IP"architecture suitable for LTE and LTE-Advanced supporting:

• Native IP transport with built-in Layer 2 Ethernet switching
• Intelligent use of spectrum using Adaptive Coding and/or Modulation, combined with co-channel operation
• Legacy TDM traffic supported natively (hybrid) and/or using emulation technologies such as Pseudowire (PWE)
• Packet synchronization support (e.g., IEEE 1588v2, Synchronous Ethernet)
• Advanced OAM (Operations, Administration, and Management) to ITU-T Y.1731,IEEE 802.1ag and IEEE 802.1ah

Example of Available Channel Size(applied to LTE)

• 10 MHz
• 20 MHz 
• 100 MHZ

Modulation Format

• QPSK
• 16QAM
• 64QAM
•  256QAM

Example of Receiver Sensitivity

•     -62 dBm (256 QAM maximum speed);
•     -88 dBm (QPSK minimum speed)

Features

•     ATPC (Automatic Transmit Power Control)
•     Modulation Shifting
•     Forward Error Correction

Mcirowave Backhaul for LTE

Wireless Backhaul for LTE and LTE-Advanced

LTE mobile network operators can  chose between microwave and fiber solutions. The benefits of microwave backhaul is more scalability and less costly. Microwave is reliable and it is a viable  backhaul solution.  LTE backhaul capacity needs are being easily addressed by packet microwave today with speed up to 1 Gbit/s.

 Microwave backhaul is not as susceptible to construction accidents.  Millimeter technology allows for high-density deployments, facilitating co-location and facility sharing. For example, 80 GHz systems can achieve multi-gigabit speeds at 5-6 mile ranges with high service availability.
  

 Why Microwave Backhaul for LTE:

• Lower transport costs and no monthly fees 
• Faster deployment time  
• Higher density deployments 
• High reliability 

 

LTE traffic will be dominated by data, and multimedia  applications ranging from non-real time services such as email , web browsing, peer-to-peer, video, location based services, maps,  and file sharing to real-time and delay sensitive services such as video and voice. LTE-ready microwave backhaul systems must deliver high capacity and low latency over an IP network with important features such as:

•  QoS aware Adaptive Coding and Modulation supporting QPSK, 16QAM, 64QAM and 256QAM
• Statistical Multiplexing
  Ethernet rings using IP/MPLS, PBT or Carrier Ethernet
• Carrier Grade Ethernet switch as part of the Radio link up to 99.999% availability

True value of LTE (Long Term Evolution) Technology

Benefits of LTE

LTE (Long Term Evolution) is more spectral efficient, scalable and makes excellent usage of the spectrum.  Faster data rates, low latency, lower  transport costs and flat network architecture are other benefits.


The objective for LTE was to provide scalable high performance Radio Access Network (RAN) technology that offers nomadic, pedestrian mobility and full vehicular speed mobility.  Because of scalable bandwidth, operators will be able to easily migrate their networks and users from HSPA to LTE over time

LTE and LTE-Advanced, the latest 3GPP evolution RAN  will significantly improve network performance with peak data rates up to 300Mbps in the 20 MHz allocation scheme.




LTE-Advanced will introduce spectrum aggregation up to 100MHz and data rate up to 1Gbps downlink. With cell-capacity with up to 200 users per cell in 5 MHz allocation, this technology will bring great benefits to users and the operators.