Patent ID: 8811277
Filing Date: 2014-08-19
Classification: H04W,Y02D

Abstract:
1. A method of a low duty mode (LDM) operation based on a superframe structure for a femto base station, the method comprising: performing the LDM operation at an available interval and an unavailable interval according to a default LDM pattern, wherein each of a first superframe and a second superframe corresponding to the superframe structure includes a first frame, a second frame, a third frame, and a forth frame sequentially, the first frame includes a secondary advanced (SA) preamble and a superframe header, the second frame includes a primary advanced (PA) preamble, the third frame includes the SA preamble, and the PA preamble is included in only the second frame, and wherein the available interval according to the default LDM pattern begins with the second frame of the first superframe and encompasses contiguous portions of the first superframe and the second superframe such that the PA preamble, one or more of the SA preambles, and the superframe header are transmitted sequentially during the available interval.