# US 2014/0153919 A1 · Optical fiber-based distributed antenna systems, components, and related methods for monitoring and configuring thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0153919 A1 - Document ID: US20140153919A1 - Status: Published application - Kind: A1 - Application number: 14/172,240 - Filed: 2014-02-04 - Published: 2014-06-05 - Earliest claimed: 2009-02-03 - Assignees: Corning Optical Communications LLC - Applicants: Corning Optical Communications LLC - Inventors: Raymond Allen Casterline; Steven Casey Kapp; Rajeshannan Palanisamy; Eric Michael Sadowski; Dale Alan Webb; Michael Brian Webb - Web page: https://patentgrep.com/patent/US20140153919A1 ## CPC - H04B 10/25753: {Distribution optical network, e.g. between a base station and a plurality of remote units} - H04B 10/0795: {Performance monitoring; Measurement of transmission parameters} - H04B 10/25754: {Star network topology} - H04B 10/25756: {Bus network topology} - H04B: TRANSMISSION ## Abstract Optical fiber-based wireless systems and related components and methods support radio frequency (RF) communications with clients over optical fiber, including Radio-over-Fiber (RoF) communications. The systems may be provided as part of an indoor distributed antenna system (IDAS) to provide wireless communication services to clients inside a building or other facility. The communications can be distributed between a head end unit (HEU) that receives carrier signals from one or more service or carrier providers and converts the signals to RoF signals for distribution over optical fibers to end points, which may be remote antenna units (RAUs). A microprocessor-based control system or systems may also be employed. The control systems may include one or more microprocessors or microcontrollers in one or more of the components of the system that execute software instructions to control the various components and provide various features for the optical fiber-based distributed antenna systems. ## Claims ### Claim 1 A wireless communication system, comprising: communication components, comprising: a downlink base transceiver station (BTS) interface configured to receive downlink electrical radio frequency (RF) signals from at least one BTS on at least one communication downlink; at least one optical interface module (OIM) configured to: receive and convert the downlink electrical RF signals from the downlink BTS interface into downlink Radio-over-Fiber (RoF) signals on the at least one communication downlink; and receive and convert uplink RoF signals from at least one remote antenna unit (RAU) into uplink electrical RF signals on at least one communication uplink; an uplink BTS interface configured to receive and communicate the uplink electrical RF signals from the at least one communication uplink to the at least one BTS; and a controller configured to predict the failure of at least one of the communications components based on receiving alarm information from at least one of the communication components defining at least one condition indicative of a predictive failure in the at least one of the communication components, and to calculate the alarm for the at least one of the communication components. ### Claim 2 (depends on 1) The wireless communication system of claim 1, wherein the controller is further configured to report the failure prediction over a network. ### Claim 3 (depends on 1) The wireless communication system of claim 1, wherein the controller is further configured to report the failure prediction to a remote system. ### Claim 4 (depends on 1) The wireless communication system of claim 1, wherein the controller is further configured to calculate the alarm based on an alarm configuration. ### Claim 5 (depends on 1) The wireless communication system of claim 1, wherein the alarm information includes whether the controller or the at least one of the communication components is responsible to calculate an alarm for the at least one of the communication components. ### Claim 6 (depends on 1) The wireless communication system of claim 1, wherein the controller is further configured to periodically receive the alarm information. ### Claim 7 (depends on 6) The wireless communication system of claim 6, wherein the controller is further configured to periodically publish the alarm information. ### Claim 8 (depends on 1) The wireless communication system of claim 1, further comprising a plurality of the remote antenna units (RAUs) optically coupled to the OIM, each RAU being configured to establish a wireless coverage area. ### Claim 9 A wireless communication system, comprising: a plurality of remote antenna units, each RAU being configured to establish a wireless coverage area; communication components, comprising: a downlink base transceiver station (BTS) interface configured to receive downlink electrical radio frequency (RF) signals from at least one BTS on at least one communication downlink; at least one optical interface module (OIM) configured to: receive and convert the downlink electrical RF signals from the downlink BTS interface into downlink Radio-over-Fiber (RoF) signals on the at least one communication downlink; and receive and convert uplink RoF signals from the plurality of remote antenna units (RAUs) into uplink electrical RF signals on at least one communication uplink; an uplink BTS interface configured to receive and communicate the uplink electrical RF signals from the at least one communication uplink to the at least one BTS; and a controller configured to predict the failure of at least one of the communications components based on receiving alarm information from at least one of the communication components defining at least one condition indicative of a predictive failure in the at least one of the communication components. ### Claim 10 (depends on 9) The wireless communication system of claim 9, wherein the controller is further configured to report the failure prediction over a network. ### Claim 11 (depends on 9) The wireless communication system of claim 9, wherein the controller is further configured to report the failure prediction to a remote system. ### Claim 12 (depends on 9) The wireless communication system of claim 9, wherein the controller is further configured to calculate the alarm for the at least one of the communication components. ### Claim 13 (depends on 12) The wireless communication system of claim 12, wherein the controller is further configured to calculate the alarm based on an alarm configuration. ### Claim 14 (depends on 9) The wireless communication system of claim 9, wherein the alarm information includes whether the controller or the at least one of the communication components is responsible to calculate an alarm for the at least one of the communication components. ### Claim 15 (depends on 9) The wireless communication system of claim 9, wherein the controller is further configured to periodically receive the alarm information and to periodically publish the alarm information.