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Advanced receivers for WCDMA terminal platforms and base stations
WCDMA continues to evolve to support high-bit-rate applications. High-speed downlink packet access (HSDPA) technology, for example, substantially increases data rates in the downlink. As data rates increase, however, greater self-interference from the dispersive radio channel limits performance. As a consequence, Ericsson has developed advanced receivers for WCDMA terminal platforms and base stations. The authors describe an advanced receiver approach known as generalized Rake (G-Rake) reception. The G-Rake receiver functions like an equalizer, suppressing self-interference. To minimize cost and time-to-market, the receiver architecture builds on the traditional Rake receiver architecture. Tests show that the G-Rake receiver can significantly improve throughput and system capacity for high-bit-rate applications. Ericsson will include G-Rake for HSDPA services starting with its U350 and U360 WCDMA platforms.
Tags
base station, platforms, WCDMA, HSDPA, EMP, technology evolution
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