REACH: a high-performance wireless base station front end

Ray W. Nettleton

doi:10.1117/12.229462

8 January 1996 REACH: a high-performance wireless base station front end

Ray W. Nettleton

Proceedings Volume 2602, Wireless Technologies and Services for Cellular and Personal Communication Services; (1996) https://doi.org/10.1117/12.229462
Event: Photonics East '95, 1995, Philadelphia, PA, United States

Abstract

The link budget determines the relationships between range, capacity and transmitted power for any wireless technology. In every case it is a key determinant of the system's performance from both an engineering and an economic point of view. Unfortunately, the new 1.9 GHz PCS systems will begin life with an inherent 7 dB disadvantage over the 800 MHz cellular due to propagation differences. Additionally, system wiring and electronics often degrade performance by a further 5 to 10 dB due to long coaxial runs and noisy front end amplification, both of which are harder issues to deal with at 1.9 GHz than at 800 MHz. SCT's REACH^TM products address these shortcomings by packaging critical components--front end amplification, filtering, etc.--in a compact cryoelectronic package intended for mounting near the antennas of the base station. In a recent trial with Qualcomm in San Diego, this package improved the CDMA uplink budget by 6 dB--enough to halve the number of base stations that are needed in most areas. This paper examines the technical and economic ramifications of the REACH^TM product.

Citation Download Citation

Ray W. Nettleton "REACH: a high-performance wireless base station front end", Proc. SPIE 2602, Wireless Technologies and Services for Cellular and Personal Communication Services, (8 January 1996); https://doi.org/10.1117/12.229462

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