Patent ID: 9693326
Date: 2017-06-27
CPC Classifications: H04J,H04L,H04W

Claim:
1. A method for providing phase synchronization to non-phase synchronized cellular base stations, comprising at least one phase synchronized cellular base station having at least one transmit antenna for transmitting a signal to a at least one non-phase synchronized cellular base station, the method comprising: transmitting by said at least one transmit antenna of said phased-synchronized cellular base station a beacon signal to said at least one non-phase synchronized cellular base station, included as part of said transmitted signal, said beacon signal comprising two orthogonal length-8 Walsh-Hadamard sequences to be broadcasted by said at least one phase synchronized cellular base station in order to provide said phase synchronization; and mapping said two orthogonal length-8 Walsh-Hadamard sequences of said beacon signal on unused Resource Elements at the slots symbols where Primary and Secondary Synchronization Signals are transmitted, said unused Resource Elements being reserved for transmission of any other signals thus having no interference from other cells in time-synchronized networks.