Industry Predicts 21 Mbps to Be Next Mobile Broadband Baseline

Mobile broadband is continuing to grow at a fast pace due to the ever increasing introduction of new technologies, new networks, new devices and competitive innovation in the market. In July, the Global mobile Suppliers Association (GSA) announced that 7.2 Mbps had become the new baseline for mobile broadband globally, since at that time half of the HSPA networks in commercial service globally were capable of supporting a peak downlink data speed of 7.2 Mbps or higher, supported by almost 600 user devices capable of 7.2 Mbps or higher which had been launched in the market. Some HSPA systems support a peak downlink data speed up to 14.4 Mbps.

HSPA Evolution (HSPA+) is the next step for many operators, which increases data rates by using higher order modulation schemes and multiple antenna technology (MIMO). 3GPP Release 7 introduced 64 QAM modulation, increasing the downlink peak data bit rate by 50% to 21 Mbps. In the uplink, 16 QAM doubles the peak data bit rate from 5.76 Mbps to 11.5 Mbps. Release 8 allows for combining 64 QAM with 2Ч2 MIMO for peak rates up to 42 Mbps downlink and 11.5 Mbps uplink (per 5 MHz carrier). Further evolution of HSPA will utilize combinations of multi-carrier and MIMO to reach peak rates of 84 Mbps downlink and 23 Mbps uplink.

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