Method and apparatus for data communication between a base station and a transponder
First Claim
1. A method for wireless data communication between a base station and at least one transponder by a high-frequency electromagnetic carrier signal, the method comprising the steps of:
- modulating information packets onto the high-frequency electromagnetic carrier signal, each information packet including a header section, a middle section, and a trailer section, the header section being provided in a forward link of a data communication between the base station and the at least one transponder for controlling the data communication, using the header section in a return link of the data communication in order to transmit information from the at least one transponder to the base station.
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Accused Products
Abstract
A method and system for data communication between a base station and at least one transponder via a high-frequency electromagnetic carrier signal onto which information packets are modulated. Each information packet has a header section, a middle section, and a trailer section. The header section can be provided in a forward link of a data communication between the base station and the transponders for controlling data communication. The header section is used in a return link of a data communication in order to transmit information from the transponder to the base station.
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Citations
24 Claims
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1. A method for wireless data communication between a base station and at least one transponder by a high-frequency electromagnetic carrier signal, the method comprising the steps of:
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modulating information packets onto the high-frequency electromagnetic carrier signal, each information packet including a header section, a middle section, and a trailer section, the header section being provided in a forward link of a data communication between the base station and the at least one transponder for controlling the data communication, using the header section in a return link of the data communication in order to transmit information from the at least one transponder to the base station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A base station for data communication with at least one transponder, the base station comprising:
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a transmitting/receiving device for transmitting high-frequency carrier signals to the at least one transponder and for receiving corresponding response signals from the at least one transponder that receives the carrier signals;
a control unit for controlling the data communication with the at least one transponder;
an analysis device, which follows the transmitting/receiving device on a receive side and analyzes a header section of a response signal that is transmitted by the transponder; and
an adjusting device that carries out an adaptation to control information transmitted to the transponder in a header section of a forward link by using the analyzed response signal, wherein the header section of the response signal that is transmitted by the transponder is used in order to transmit information from a transponder to the base station.
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23. A data communication system comprising:
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at least one transponder; and
a base station comprising;
a transmitting/receiving device for transmitting high-frequency carrier signals to the at least one transponder and for receiving corresponding response signals from the at least one transponder that receives the carrier signals;
a control unit for controlling the data communication with the at least one transponder;
an analysis device, which follows the transmitting/receiving device on a receive side and analyzes a header section of a response signal that is transmitted by the transponder; and
an adjusting device that carries out an adaptation to control information transmitted to the transponder in a header section of a forward link by using the analyzed response signal, wherein the header section of the response signal that is transmitted by the transponder is used in order to transmit information from a transponder to the base station. - View Dependent Claims (24)
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Specification