METHOD AND APPARATUS FOR DATA COMMUNICATION WITHIN A PHYSICAL LINK LAYER OF A COMMUNICATIONS SYSTEM

摘要

A method and apparatus that permits direct communication of information between elements within a physical link layer of a communication system is described. This is achieved by exploiting existing relevant standards to transmit a quantity of additional data by encoding it as an additional low frequency phase modulation on an existing data information signal transmitted within the communications system. Importantly the additional information is effectively transparent to the normally transmitted data signals and so these signals are not corrupted by the presence of the additional data while no extra bandwidth requirement is placed on the communications system. The described method and apparatus is architecturally efficient and leads to a solution that exhibits an improved performance, cost and size.