METHOD AND SYSTEM FOR WIRELESS TRANSMISSION OF OF ANALOG SIGNALS BETWEEN ANTENNA AND BASEBAND PROCESSOR

摘要

A wireless communication method and system utilizing optical transmission technology to transport analog signals directly to/from the antenna, without ADC/DAC, so that the optical transport facility can be utilized more efficiently and there is no need to adapt the digital data rate to the transport capacity, as the analog transmission is independent of the digits buried in the given spectrum. Complicated operation is moved into a centralized location, so that a cell site (base station) is light and flexible. In contrast, the standardized approach in the industry, which involves digitized interface between the antenna and the control processor, hits capacity limits of the current transport technology.

主权项

1. A method of optically transmitting an uplink signal and a downlink signal in a fiber comprising:
multiplexing a number of MIMO uplink channels resulting in an uplink signal, wherein a guard band is included for each multiplexed MIMO uplink channel; multiplexing a number of MIMO downlink channels resulting in a downlink signal, wherein a guard band is included for each multiplexed MIMO downlink channel; and optically transmitting, through a fiber, (i) the uplink signal on a first carrier, and (ii) the downlink signal on a second carrier; wherein a separation band is included between the uplink signal and the downlink signal.