A method and apparatus for data transmission at energy efficient rates. The advertising panel can be used for providing advertising on the inner surface of the windshield of a vehicle. The remote computer system executes the code module, and allows the executing code module to read the post-mortem information from the remote computer system. 5 to 9% ethylenically-unsaturated dicarboxylic acid monomer by weight, based on the weight of the emulsion polymer; and a polyol in the amount of from 0. If so, a further check may be made as whether the resources remaining to be allocated for downlink and uplink have a difference in excess of a given amount.