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Dear All,
In order to help us in evaulating the performance of the existing preamble and compare it against any changes, we would like to know the simulation scenarion that needs to be assumed (eg. a 19 cell model) and the procedure for the initial acquisition (after power on of mobile).
Specifically, we want to know whether one can assume that initial symbol timing acquisition is done using CP correlation of the OFDM symbols and that the preamble is used only for Frame timing. If this is a valid assumption, has any one run any simulations using the CP technique to measure its reliability? If so can they share their results with the group?
In case the CP base symbol timing is not reliable, we have to perform a time correlation against the preamble sequence itself for initial symbol timing acquisition – in this case, we are concerned with the correlator complexity which could be potentially large as we have to do these correlation operations per ADC output sample. So, in this case we would like to suggest that we look at alternative preamble structures and sequences to reduce the complexity (and in turn power consumption) of the mobile for initial symbol timing acquisition.
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