Ofdm communication system with multiple ofdm symbol sizes

Details Ofdm communication system with multiple ofdm symbol sizes Ofdm communication system with multiple ofdm symbol sizes

H - Electricity

04

J

H04J 11/00 (2006.01) H04B 7/005 (2006.01) H04B 7/02 (2006.01) H04L 27/26 (2006.01)

Patent

CA 2756741

System traffic may be arranged into different categories (e.g., control data, user data, and pilot data). For each category, one or more OFDM symbols of the proper sizes may be selected for use based on the expected payload size for the traffic in that category. For example, control data may be transmitted using OFDM symbols of a first size, user data may be transmitted using OFDM symbols of the first size and a second size, and pilot data may be transmitted using OFDM symbols of a third size or the first size. In one exemplary design, a small OFDM symbol is utilized for pilot and for transport channels used to send control data, and a large OFDM symbol and the small OFDM symbol are utilized for transport channels used to send user data.

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