View article

Methods and apparatus enabling a wireless network to gen erate data that can be used by a receiver (eg, UE) to resolve the contributions of individual transmitters, such as to deter mine its location without resort to external devices such as

GPS satellites. In one embodiment, the wireless network comprises a single frequency network (SFN), and a unique base station identifier is embedded within the data, and encoded in a manner which allows the UE to calculate path characteristics (such as path latency, and Direction of Arrival) to triangulate its position. In one variant, the data encoding comprises weighting frames of data from different base sta tions using an orthogonal matrix. Advantageously, the encod ing and embedded identifier are also transparent to legacy UE, thereby allowing for implementation with no infrastructure or