Patent ID: 7986653

Claim:
A method of carrying out a wireless data transmission between a base station and a transponder, comprising the following steps: a) transmitting first data organized in a data packet from said base station to said transponder, comprising modulating said data packet onto an electromagnetic carrier wave and transmitting said carrier wave with said data packet modulated thereon from said base station to said transponder, wherein said data packet includes a header section containing at least one symbol including a reference symbol, and further includes at least one further section; b) receiving said first data, comprising receiving said carrier wave with said data packet modulated thereon, in said transponder; c) transmitting second data from said transponder to said base station, comprising modulating and backscattering said carrier wave in accordance with said second data from said transponder; d) during said transmitting of said header section of said data packet from said base station to said transponder, transmitting transponder operating information from said transponder to said base station by modulating and backscattering said carrier wave in accordance with said transponder operating information to produce a backscattered signal from said transponder, wherein said transponder operating information is indicative of at least one processing parameter that applies to said receiving of said first data and/or said transmitting of said second data by said transponder; e) receiving said transponder operating information in said base station; and f) in said base station, in response to and dependent on said transponder operating information, adjusting a transmission parameter that applies to said transmitting of said first data from said base station to said transponder.