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1. (WO2011162983) COVERAGE EXTENSION USING CARRIER DIVERSITY IN MULTI-CARRIER COMMUNICATION SYSTEMS

Pub. No.:    WO/2011/162983    International Application No.:    PCT/US2011/039947
Publication Date: Dec 29, 2011 International Filing Date: Jun 10, 2011
IPC: H04B 7/12
Applicants: ALCATEL LUCENT
WU, Kam, H.
FARAG, Emad, N.
WONG, Shin, Horng
Inventors: WU, Kam, H.
FARAG, Emad, N.
WONG, Shin, Horng
Title: COVERAGE EXTENSION USING CARRIER DIVERSITY IN MULTI-CARRIER COMMUNICATION SYSTEMS
Abstract:
Embodiments are described to address coverage difference problems in communication systems (300) that operate in multiple frequency bands. Embodiments are described that utilize both Carrier Multiplexing and Carrier Diversity for a plurality of frequency carriers that exhibit a difference in coverage due to differences in path loss. Carrier Diversity is selected for carriers for which one or more of such selected carriers have a smaller coverage in order to increase the signal-to-noise ratio of the diversity combined carriers. This can effectively extend the coverage of diversity combined carriers to match those with larger coverage in Carrier Multiplexing mode.