Linguistic frame of reference is a frame of reference as it is expressed in a language.
A frame of reference is a coordinate system used to identify location of an object. In languages different frames of reference can be used. They are: the Relative frame of reference, the Intrinsic frame of reference, and the Absolute frame of reference. Each frame of reference in a language can be associated with distinct linguistic expressions.
References
Linguistic frame of reference Wikipedia(Text) CC BY-SA