Methods and apparatus for resolving wireless signal components

摘要

Methods and apparatus enabling a wireless network to generate data that can be used by a receiver (e.g., UE) to resolve the contributions of individual transmitters, such as to determine 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 stations using an orthogonal matrix. Advantageously, the encoding and embedded identifier are also transparent to legacy UE, thereby allowing for implementation with no infrastructure or UE modifications other than software. Network and user apparatus implementing these methodologies, and methods of doing business, are also disclosed.

主权项

1. A method of broadcasting signals within a wireless Single Frequency Network (SFN), the method comprising:
at a plurality of transmitters: receiving from a mobile device a location request for the location of the mobile device; weighting at least a portion of payload data based on an orthogonal matrix, wherein said weighting introduces additional diversity into the payload data; embedding the payload data with unique transmitter-identification information for each of said plurality of transmitters and with location-related parameters of the mobile device; and transmitting the weighted and embedded payload data from the plurality of transmitters to the mobile device in response to the location request.