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LTE Overview May 21, 2010

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LTE (Long Term Evolution) standardization within the 3GPP (3rd Generation Partnership Project) has reached a mature state. Changes in the specification are limited to corrections and bug fixes. Since end 2009 LTE mobile communication systems have been deployed as a natural evolution of GSM (Global system for mobile communications) and UMTS (Universal Mobile Telecommunications System).

The ITU (International Telecommunication Union) has coined the term IMT-Advanced to identify mobile systems whose capabilities go beyond those of IMT 2000 (International Mobile Telecommunications). Specifically data rate requirements have been increased. In order to support advanced services and applications 100Mbps for high and 1Gbps for low mobility scenarios must be realized. Throughout 2009 3GPP has worked on a study with the purpose of identifying the LTE improvements required to meet IMT-Advanced requirements. In September 2009 the 3GPP Partners made a formal submission to the ITU proposing that LTE Release 10 & beyond (LTE Advanced) should be evaluated as a candidate for IMT-Advanced. Beyond achieving technical requirements, a major reason for aligning LTE with the call for IMT-Advanced is that IMT conformant systems will be candidates for future new spectrum bands that are still to be identified. This ensures that today’s deployed LTE mobile networks provide an evolutionary path towards many years of commercial operation.

To download the complete notes please click here

Courtesy of Rohde & Schwarz website.

ALU 9370 RNC & 9353 WMS Training – A new way in managing NodeBs September 1, 2009

Posted by admin in : AT&T , 6comments

I was sent to a 4-day training last week in Phoenix about the new RNC being deployed in all AT&T Mobility markets. RNC 9370 is a robust hardware that is capable of handling existing NodeBs in AT&T Mobility Network. The RNC 9370 comes in a single and dual in one cabinet. See picture below.

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The Operations, Administration, Maintenance and Provisioning (OAM&P) is being done using WMS (Wireless Management System). The Wireless Management System (WMS) delivers an integrated UMTS management platform through which all Network Elements (NEs), or NodeBs, are monitored and controlled. It provides the complete end-to-end management solution for UMTS networks. The WMS manages the entire UMTS network which is divided into the UTRAN and core (circuit and packet) areas. The Access Network OAM manages the UTRAN part of the network.

The deployment of these RNC started in 2008 and by end of 2009 or early 2010 it would have installed around 200, replacing the existing RNC 5200, in all of the AT&T regions. The deployment is an upgrade to ensure network reliability and performance.

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