SAN FRANCISCO — Debates over wireless alternatives spanned the spectrum from broadband mobile to the Internet of Things on the opening day of an IEEE conference here. The energy showed the diversity and intensity of competition across the burgeoning field.
Among the clashes:
- A startup called decisions on the first phase of the 5G cellular standard short-sighted.
- A carrier complained that early cellular IoT networks are being misused.
- Companies debated 5G’s role in IoT.
- Wi-Fi proponents said that unlicensed LTE faces an uphill battle.
- A half-dozen startups showed competing wireless data nets.
The first phase of the 5G cellular specification did not fully consider new options such as the air interface proposed by startup Cohere Technologies, said Anton Monk, a vice president of the company.
“Some big vendors wanted to get something done fast and slap a 5G name on it — we’ll see how widely it gets deployed,” said Monk, who recently returned from the the latest 3GPP standards meeting in Dubrovnik.
He described the phase-one spec as “LTE with massive MIMO and beam forming — nothing really new except for including Huawei’s polar codes in the control channel and using LDPC everywhere else.”
Looking ahead, the 3GPP will start to study items on a handful of high-performance use cases that could help define a second phase of the 5G standard. They include enhanced vehicle communications as well as a proposal from ZTE and other companies in China for non-orthogonal multiple-access encoding using the power domain to increase spectral efficiency.
Next page: Early users flood some cellular IoT nets