Abstract: Provided is a method for processing a physical resource block in a wireless communication system. The method includes identifying, by a distributed unit, user equipment (UE) connected to each of a plurality of radio units (RUs) and acquiring connection information, generating, by the distributed unit, physical resource block allocation information on a resource block area allocated to each of the plurality of RUs based on the connection information, distributing, by a fronthaul multiplexer (FHM), the resource block area allocated to each of the plurality of RUs based on the physical resource block allocation information, and transmitting, by each of the plurality of RUs, a radio signal to at least one UE based on the distributed physical resource block area.

Abstract: The present disclosure in some embodiments relates to a method of providing a neutral host network service, and a system and a device therefor, the method using a blockchain and a smart contract to efficiently process complicated agreements and fulfillment management between telecommunication service providers, such as those for reducing transaction costs including trust-building, setting reasonable service rates according to quality and their settlement, and compensation based on an SLA.

Abstract: A system for compensating for a latency difference in a fronthaul in ring topology is provided, including a centralization node linked to a BBU group, a plurality of distribution nodes linked to a plurality of RRH groups, an optical bi-directional ring network connecting the central node and the distribution nodes and allows a WDM optical signal to be transmitted and received between the central node and the distribution nodes, and a FIFO buffer that stores an electrical signal. Each of the distribution nodes demultiplexes the WDM optical signal, converts each demultiplexed optical signal into an electrical signal, stores the electrical signal in the FIFO buffer, converts the electrical signal stored in the FIFO buffer into an optical signal, and adjusts a size of the FIFO buffer, thus compensating for a difference between latencies before and after an occurrence of a switchover in the optical bi-directional ring network.

Abstract: A system for sharing an optical fiber for a cloud-based wired and wireless access network, includes: a centralization device to generate summing signals by respectively summing multi-channel optical signals input from a wireless donor unit group and by summing multi-channel wired signals input from a wired donor unit group or generate wavelength-converted signals by wavelength-converting the multi-channel optical signals or the multi-channel wired signals, multiplex the summing signals or the wavelength-converted signals, and distribute the summing signals or the wavelength-converted signals to a plurality of devices connected to the centralization device via a shared optical fiber; and a distribution device group to generate corresponding optical signals by demultiplexing the summing signals or the wavelength-converted signals in units of wavelengths, and transmit the corresponding optical signals or the multi-channel wired signals to a wireless remote unit group and/or a wired remote unit group via a preset