SSTL looks to CDMA 1xAdvanced to boost voice capacity

3 Sep 2009

Indian mobile network operator Sistema Shyam TeleServices Ltd (SSTL), which operates under the MTS India brand, has become the first operator to commit to CDMA 1xAdvanced technology, Light Reading reports. SSTL, which launched commercial services over a CDMA network in Rajasthan in October 2008, is one of the few new players in India’s wireless sector that has opted to utilise CDMA technology. Since launch it has expanded its network to six circles; Rajasthan, Kerala, Tamil Nadu, Calcutta, West Bengal and Bihar. The decision to investigate 1xAdvanced is thought to stem from SSTL’s belief that it can increase uptake of its service through differentiation in terms of service quality, with the cellco viewing the upgrade as a means to improving both voice capacity and data speeds.

Having been ratified by the 3rd Generation Partnership Project 2 (3GPP2) last month, 1xAdvanced is a channel card upgrade that improves base transceiver station (BTS) interference cancellation, power control, early frame termination, and smart blanking. It is understood that the upgrade can theoretically increase voice capacity fourfold, and can be deployed in phases or in one go. If done in phases, the first stage provides a 50% increase in voice capacity, although customers would require new handsets and software upgrades to benefit from the upgrade.

With channel cards expected to be commercially available in the second quarter of 2010 and new devices following that, SSTL has not indicated when it expects 1xAdvanced services to be available commercially.