Wednesday, December 04, 2013

Time Warner and Verizon Wireless 4G LTE on the same 700 MHz Band causes conflicts

Time Warner Cable recently placed some channels, on the same spot in the broadband spectrum that serves Verizon's 4G LTE data service. Those with phones on the Verizon network are most likely to see the interference.

In June, Verizon finished the rollout of 4G LTE in the 700 MHz band of spectrum. It is the only wireless carrier using that part of the spectrum in Raleigh NC. Time Warner uses that same spectrum for some channels in the Triangle, so when a 4G device and a cable box are in the same room, they can come into conflict.

Cable boxes lack the kind of shielding to block interference from other devices, and the LTE phones create the interference inside the set-top boxes whenever the user checks email, sends a text or a tweet, posts a Facebook update or surfs the Internet. It can even happen when no one is using the phone, officials said, as the phone is often doing background communications over the LTE network.

 "We apologize for the inconvenience and are working on a solution that will resolve this problem definitively in the coming weeks," Time Warner said in a statement.

Time Warner officials said such "hyper-local interference" might be resolved simply by taking the phone to another room. People also can put their phones on airplane mode. That solves the interference with TV, but they won't be able to use their phones until switching back.
Another solution involves turning off the 4G service and using Wi-Fi to access the Internet.