A recent report from Silicon Valley tech giant Oracle predicts that LTE diameter signaling traffic will continue to climb rapidly in coming years.

The sixth edition of the company's LTE Diameter Signaling Index noted that the global embrace of smartphones and the Internet of Things shows no signs of abating, and that new technologies will also affect diameter traffic.

LTE broadcast is expected to grow at an average annual rate of 23 percent to 225 million messages per second by 2021, while VoLTE should increase at an average rate of 22 percent annually to 62 million MPS over that span.

Although connected cars should produce 9.4 million MPS in that four-year window, that technology showed higher average annual growth at 30 percent.

Overall, Oracle analysts expect LTE diameter signaling to produce 595 million messages per second by 2021. Analysts added that although diameter will not be the main signaling protocol of 5G, it will nonetheless play a significant role in next-generation networks.

"With consumer expectations at an all-time high, it's more critical than ever that CSPs innovate and plan for continued Diameter signaling growth in order to stay relevant," Oracle Communications senior vice president Doug Suriano said in a statement.

Developing markets in Asia and Eastern Africa are expected to generate the highest growth in LTE diameter signaling in coming years, but Oracle anticipates that the maturing North American market will climb at a slower average rate of 12 percent.