Large Transport
Flight Crew Air Transport Pilot (ATP)
Training / Qualification
Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance; Inflight Event / Encounter Wake Vortex Encounter; Inflight Event / Encounter Weather / Turbulence
Air Traffic Control Issued Advisory / Alert
Environment - Non Weather Related; Human Factors; Procedure
There were calm winds on descent tracking the BRBBQ1 STAR landing north.  We encountered wake turbulence that rolled our aircraft 10-12 degrees on the longitudinal axis for a couple of miles.  I told First Officer to offset to the right.  We entered 1 mile right offset in the MCDU. A few minutes later Center mentioned we appeared to be off course. I told him we had offset 1 mile due to wake turbulence. The aircraft in front of us was 10 miles ahead.  We were not off course.  I am under the impression we get 4 miles before being 'off course.'Wake turbulence on these arrivals occur with no winds aloft. Offsets work fine getting out of the turbulence.Allow offsets.
Cargo widebody Captain reported selecting a 1 mile offset after a wake turbulence encounter; and was questioned by ATC regarding the deviation.