Pilot symbols

Details Pilot symbols Pilot symbols

H - Electricity

04

B

H04B 1/76 (2006.01) H04B 7/216 (2006.01) H04B 1/707 (2006.01)

Patent

CA 2272513

The invention includes a method of inserting pilot symbols into communication signals in which a plurality of signals to be transmitted are generated; each signal is divided into frames and each frame consists of a plurality of blocks. A pilot signal block is inserted into each frame of each signal before transmission. The pilot signal blocks are inserted in a time staggered fashion, spread though out the frame. The pilot symbols are time-staggered using an arbitrary algorithm for the pilot symbol insertion. This enables each receiver to perform more accurate, continuous channel estimation and results in a reduced Bit Error Rate (BER) and an improved Quality of Service (QoS). A receiver according to the invention makes use of pilot symbols of all other users in the system in order to improve its channel estimation for user k and this gives more reliable data detection.

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