In-building distributed antenna systems (DASs) are used to enhance cellular coverage within buildings to provide wireless customers better coverage and capacity while simultaneously greatly enhancing the user experience. Sounds simple, right? Well, it’s not. And not all DAS solutions are the same. What’s more, most only solve coverage and/or capacity issues without consideration of performance degradation caused by DAS Near-Far.
Addressing DAS Near-Far
One critical issue not normally considered when designing or selecting equipment for an in-building DAS is Near-Far. Near-Far is a term describing performance reduction when a mobile device is operating within a DAS coverage area, but is being serviced by a distant macro cell tower. The Near-Far performance reduction, which includes degraded voice and data service, reduced battery life, and/or complete loss of service, can be experienced by DAS participants as well as non-participants.
Westell’s ClearLink® DAS addresses the Near-Far problem. The ClearLink DAS mitigates signal degradation and subsequent performance issues caused by Near-Far performance reduction when a mobile device is operating within a DAS coverage area, but is being serviced by a distant macro cell tower.
A Revolutionary DAS Solution
Westell’s ClearLink DAS offers unparalleled flexibility and scalability, and provides advanced features to simplify DAS commissioning and optimization.
Highlights of Westell’s ClearLink DAS:
- Hybrid digital and analog solution that provides superior DAS performance for the ultimate end-user experience.
- Improves Near-Far performance by better than 15 dB over a conventional analog DAS.
- Head-end and remote units are designed to provide customers with a ‘pay as you grow’ solution – expanding the system as requirements evolve.
- Provides individual sub-band power control in the remote as well as alarming and user access based on login credentials for neutral host deployments.
- Decreases OpEx by reducing commissioning time with the advanced auto path detection and calibration feature, which adjusts parameters in the RF and optical paths to optimize system performance.
- The echo feature streamlines data entry of like parameters between common modules, further simplifying the configuration process.
- Easily adjust DAS settings and view system status via the user-friendly GUI.
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For more information on Westell’s ClearLink DAS, please visit www.westell.com/ClearLinkDAS.
