Menu
MWC 2015: Vendors search for best approach to LTE in unlicensed spectrum

MWC 2015: Vendors search for best approach to LTE in unlicensed spectrum

Before the halfway point of the first day of MWC 2015 Alcatel-Lucent, Ericsson, Qualcomm, and SK Telecom had already spoken about using unlicensed spectrum in conjunction with LTE over licensed spectrum.

Before the halfway point of the first day of MWC 2015 Alcatel-Lucent, Ericsson, Qualcomm, and SK Telecom had already spoken about using unlicensed spectrum in conjunction with LTE over licensed spectrum.

“Clearly this is a popular, as well as confusing, topic,” observes Daryl Schoolar, Principal Analyst, Intelligent Networks, Ovum.

Since CES in January, Schoolar says Ericsson has been talking about LTE Licensed Assisted Access (LTE-LAA) - here LTE is aggregated between both licensed spectrum and unlicensed 5GHz spectrum.

At Mobile World Congress 2015 however, Alcatel-Lucent provided a different approach, whereby the downlink remains Wi-Fi but LTE is used in the uplink - the vendor can see full carrier aggregation between Wi-Fi and LTE; it also supports LTE-LAA.

“All of this can be confusing: service models are uncertain, as are decisions on which type of harmonisation to use, and when,” Schoolar claims.

“Hopefully Qualcomm can help here, because it supports both Ericsson and Alcatel-Lucent’s options.

“Most confusing of all, gaining regulatory approval to use unlicensed bands to support licensed bands is very questionable.

“SK Telecom – an LTE-LAA partner of Ericsson – said at an analyst event on Sunday that regulatory concerns give it cause to hesitate on full commitment to this technology.”


Follow Us

Join the newsletter!

Error: Please check your email address.

Tags MWC 2015Ericssonltealcatel-lucent5GSK Telecomqualcomm

Featured

Slideshows

Channel celebrates as HP marks 50 years in NZ

Channel celebrates as HP marks 50 years in NZ

HP marked 50 years in New Zealand at an event in the vendor's Auckland's headquarters last night, with a host of key channel figures coming along to celebrate. Photos by HP.

Channel celebrates as HP marks 50 years in NZ
EDGE 2017 - Icebreaker Sessions round 2

EDGE 2017 - Icebreaker Sessions round 2

EDGE guests experience the value of networking at the second round of Icebreaker sessions.. Photos by Maria Stefina

EDGE 2017 - Icebreaker Sessions round 2
Show Comments