Samplify Systems, a signal compression technology solutions provider for health, wireless, and computing applications, has been awarded a patent by the United States Patent and Trademark Office that discusses the usage of compression over fiber optic links, such as those using the open base station architecture initiative (OBSAI) and common public radio interface (CPRI) protocols, within wireless base stations.
By adopting 4G LTE, the volume of fiber optic connections utilising OBSAI and CPRI between baseband equipments and distant radio heads rises from 614 Mbps to 10 Gbps. To aid this increasing speed, costly field programmable gate arrays (FPGAs) and optical transceivers are needed on either sides of the fiber connection.
Samplify has been experimenting on signal compression from 1999. The Prism IQ compression technology of the company has steadily been optimized especially for sampled I/Q baseband data to assist growing bandwidth requirements by wireless networks. Due to this contribution, the mobile market can rest assured that Prism IQ will provide efficient compression technology for wireless infrastructure applications and attain a maximum of 4:1 compression on 4G LTE signals apart from preserving signal quality based on the error vector magnitude defined by 3GPP.