Radio link and method for operating it
First Claim
6. In a radiolink having a transmitter, transmitting a datastream including data packets having content and duplicates of the data packets, and a receiver;
- said receiver comprising;
a receiving unit for receiving the data packets;
a receiver control unit connected to the receiving unit, processing received data packets, and outputting the received data packets;
said receiver control unit determining a test code for each data packet, determining whether an error free or an errored received data packet is present by comparing each test code with the content of the data packet, and rejecting errored data packets on receipt;
said receiver control unit determining expected times for each data packet to be received; and
said receiver control unit evaluating successive data packets by using a temporal spacing between the two data packets;
the receiving unit being designed such that duplicates of the data packets can be received, and that the receiver control unit is designed such that the duplicates can be processed and output;
said receiver control unit being determines one test code each of a duplicate, said receiver control unit determining from comparing the test code with the content of the duplicate whether an error free duplicate is present, and said receiver control unit rejecting an errored duplicate on reception, the receiver further being designed such that it determines an offsetting rule for a time offset between data packets and duplicates from at least one item of offset information extracted from the data packets and/or their duplicates, and selectively evaluates the duplicates by using the offsetting rule.
2 Assignments
0 Petitions
Accused Products
Abstract
A radio link with transmitters and a receiver transmits data packets of a data stream at a regular time interval. To receive the data packets, the data stream is sampled for the presence of data packets in a locked mode. In addition, times for an expected reception of one data packet each are predetermined. In a transmission mode, one data packet each is sampled at regular time intervals, it being determined from a comparison of a test coding with the content of the data packet whether an error-free data packet is present.
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Citations
29 Claims
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6. In a radiolink having a transmitter, transmitting a datastream including data packets having content and duplicates of the data packets, and a receiver;
- said receiver comprising;
a receiving unit for receiving the data packets;
a receiver control unit connected to the receiving unit, processing received data packets, and outputting the received data packets;
said receiver control unit determining a test code for each data packet, determining whether an error free or an errored received data packet is present by comparing each test code with the content of the data packet, and rejecting errored data packets on receipt;
said receiver control unit determining expected times for each data packet to be received; and
said receiver control unit evaluating successive data packets by using a temporal spacing between the two data packets;
the receiving unit being designed such that duplicates of the data packets can be received, and that the receiver control unit is designed such that the duplicates can be processed and output;
said receiver control unit being determines one test code each of a duplicate, said receiver control unit determining from comparing the test code with the content of the duplicate whether an error free duplicate is present, and said receiver control unit rejecting an errored duplicate on reception, the receiver further being designed such that it determines an offsetting rule for a time offset between data packets and duplicates from at least one item of offset information extracted from the data packets and/or their duplicates, and selectively evaluates the duplicates by using the offsetting rule. - View Dependent Claims (1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 12, 13, 16, 17, 19, 20, 21, 22, 24, 25, 26)
- said receiver comprising;
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14. A radiolink having at least one transmitter, and having at least one receiver.
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15. A combined transceiving module for a radiolink, the transceiving module having a transmitter, and a receiver.
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18. A method for emitting a data stream, having data packets, for a radiolink with at least one transmitter and with at least one receiver for transmitting a data stream comprising data packets, the method exhibiting the regularly repeated execution of the following steps:
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providing a data packet to be transmitted, inserting a predetermined test code, resulting from the content of the respective data packet, into the respective data packet, emitting the data packet, generating a duplicate of the data packet, and inserting in each case an item of type information into the data packet and/or into the duplicate, predetermining an item of offset information for a time offset between data packet and duplicate, and inserting the item of offset information into at least one data packet and/or into at least one duplicate, and emitting at least one duplicate, the emission of the duplicate with reference to the data packet being performed with a time offset in accordance with the offset information, and the time offset between the respective data packet and its duplicate being yielded from the offset information in accordance with a predetermined offsetting rule, the item of offset information being generated from a prescribed enumeration, specifically by using a counter reading of the counting of the transmitted data packets.
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22-1. The method for receiving a data stream according to claim 20, characterized in that there is decoded from at least one data packet or from at least one duplicate an item of identity information assigned to the transmitter of the data packet, an offsetting rule for a time offset between data packets and duplicates being determined from at least one item of offset information extracted from data packets and/or their duplicates.
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27. A method for operating a radiolink that has the steps of a method for emitting a data stream having data packets and duplicates of the data packets, and a method for receiving a data stream.
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28. A bicycle computer with at least one transmitter, and with a receiver, the transmitter being connected to a sensor for measuring wheel revolutions, to a sensor for measuring the crank revolutions and/or to a sensor for measuring the tractive resistance, and the receiver having a display for displaying the value transmitted by the sensor.
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29. A fitness computer with at least one transmitter, and with a receiver, the transmitter being connected to a sensor for measuring the heartbeat and/or the stepping frequency of a user, and the receiver having a display for displaying the value transmitted by the sensor.
Specification