Madhukar Tripathi, Sr. Manager-Marketing & Channel Sales, Anritsu India

The use of wireless technology has grown dramatically over the past two decades. The mid-1990s put wireless into the hands of consumers for a wide variety of applications, such as cellular telephony, cordless phones, and wireless audio for entertainment. The rise of the Internet and the consumer's desire to be connected to it at all times drove deployment on high-speed data communications on Wi-Fi and 3G/4G mobile networks. Consumer demand for mobile data is exponential and shows no signs of slowing.

Telecom sites are growing day by day and have created new challenges for telecom industry – be it planning or O&M department. Biggest challenge seen is interference. Mobile operator pays billions of dollars to the government during auctions for additional spectrum. The goal is to meet customer demand, while providing higher throughput, 24/7 uptime, and a higher quality of service. This goal is jeopardized by impairments in the spectrum caused by interference. It is critical that operators and DAS vendors be proactive in maintaining a clear spectrum environment, eliminating problems that could negatively impact the user experience. Spectrum assurance is about guaranteeing signal integrity, solving problems in the network quickly, efficiently, and with minimal disruption of service.

With more antennas on single site and new wireless communication technologies coming in, there are multiple challenges seen, such as minimizing network problems and maintenance costs, troubleshooting the problem, categorizing the problem, and finding the problem which is related to applications, and it is a very important step. Anritsu offers a wide range of remote spectrum monitor and powerful software remote spectrum monitor SpectraVision Software to identify, record interference. These solutions include single-port remote spectrum monitor to dual-port and 12-port or 24-port remote spectrum monitor.

These have many applications; some of them are:

Remote spectrum recording. Typically this is done when a system user complains of interference from an unknown source. In public safety and critical communications, users might complain of broken reception (especially in digital voice systems), warbling, or squealing (analog heterodyne from co-channel signals), or sporadic interference at certain times of the day or night. Recordings can be correlated with time and location estimation reports from users to determine likely sources and facilitate spectrum fingerprint analysis.

Spectrum clearing. In an effort to maximize spectrum use efficiency, regulators in many countries have implemented re-banding rules which require users to vacate spectrum and transition to other frequencies.

Enforcement and rule making. Government regulatory agencies benefit from remote spectrum monitoring because it allows manpower to be effectively multiplied over a wider area and at times when engineers are not normally on duty.

Interference hunting. Interference to mobile telephony can cause subscriber frustration leading to churn – where a subscriber switches to another carrier. Mobile telephony is replacing traditional wireline telephony for some subscribers – hence interference to mobile telephony can be potentially life-threatening if calls for police, fire, or EMS do not go through. Intentional and unintentional interference to aviation, maritime operations, critical infrastructure, and public safety creates a potentially life-threatening scenario that must be quickly addressed.

Being world leader in Telecom Test and Measurement, Anritsu is committed to serve industry and society for a connected and safer world.