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US 10,567,111 B2Granted
Wireless transmission method for simple receivers
AssigneeFraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
InventorsGerd Kilian, Jakob Kneissl, Johannes Wechsler, Josef Bernhard
Life of this patent
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Abstract
Embodiments provide a method for transmitting, according to which the payload data included in the data packet is provided with at least one indicator, such that a degree of interference of the received data (e.g. already decided bits) provided by the receiver for receiving data packets (e.g. a simple cost-effective radio chip) can be determined based on the at least one indicator, such that the determined degree of interference can be considered during channel decoding of the channel-coded payload data for increasing efficiency of channel decoding.
Claims22
Data receiver for receiving payload data transmitted by a data transmitter by means of at least one data packet via a communication channel, comprising:
- receiver for receiving data packets that is configured to receive the at least one data packet, wherein the at least one data packet comprises channel-coded payload data and at least one indicator, wherein the receiver for receiving data packets is configured to output, for the at least one received data packet, received data that comprise the received channel-coded payload data and the at least one received indicator;
- processor for further processing received data that is configured to determine, from the received data, the received channel-coded payload data and the at least one received indicator and to compare the at least one received indicator of the at least one received data packet to at least one reference indicator that is known to the data transmitter and data receiver and to determine, based on the comparison between the at least one received indicator and the at least one reference indicator, at least one degree of interference of the received channel-coded payload data of the at least one received data packet;
- wherein the processor for further processing received data is configured to weight the received channel-coded payload data of the at least one received data packet based on the determined at least one degree of interference for decoding and to perform channel decoding depending on the weighting of the received channel-coded payload data for acquiring the payload data;
- wherein the at least one data packet comprises at least two indicators that are arranged spaced apart from one another in the data packet;
- wherein the processor for further processing received data is configured to determine a degree of interference of part of the channel-coded payload data that has a lower distance to one of the at least two spaced-apart indicators in the data packet more strongly in dependence on the comparison of the one indicator with the respective reference indicator than part of the payload data that has a greater distance to the indicator in the at least one data packet.
2 more elements
Method for receiving payload data that are transmitted by a data transmitter by means of at least one data packet via a communication channel, the method comprising:
- receiving the at least one data packet, wherein the at least one data packet comprises channel-coded payload data and the at least one indicator;
- providing received data for the at least one received data packet, wherein the received data comprise the received channel-coded payload data and the at least one received indicator;
- determining the received channel-coded payload data and the at least one received indicator from the received data;
- comparing the at least one received indicator of the at least one received data packet to at least one reference indicator that is known to the data transmitter and data receiver to determine, based on the comparison between the at least one received indicator and the at least one reference indicator, at least one degree of interference of the received channel-coded payload data of the at least one received data packet;
- weighting the received channel-coded payload data of the at least one received data packet for decoding based on the determined at least one degree of interference;
- and
- performing channel decoding depending on the weighting of the received channel-coded payload data for acquiring the payload data:
- wherein the at least one data packet comprises at least two indicators that are arranged spaced apart from one another in the data packet;
- determining a degree of interference of part of the channel-coded payload data that has a lower distance to one of the at least two spaced-apart indicators in the data packet more strongly in dependence on the comparison of the one indicator with the respective reference indicator than part of the payload data that has a greater distance to the indicator in the at least one data packet.
6 more elements
A non-transitory digital storage medium having a computer program stored thereon to perform the method for receiving payload data that are transmitted by a data transmitter by means of at least one data packet via a communication channel, the method comprising:
- receiving the at least one data packet, wherein the at least one data packet comprises channel-coded payload data and the at least one indicator;
- providing received data for the at least one received data packet, wherein the received data comprise the received channel-coded payload data and the at least one received indicator;
- determining the received channel-coded payload data and the at least one received indicator from the received data;
- comparing the at least one received indicator of the at least one received data packet to at least one reference indicator that is known to the data transmitter and data receiver to determine, based on the comparison between the at least one received indicator and the at least one reference indicator, at least one degree of interference of the received channel-coded payload data of the at least one received data packet;
- weighting the received channel-coded payload data of the at least one received data packet for decoding based on the determined at least one degree of interference;
- and
- performing channel decoding depending on the weighting of the received channel-coded payload data for acquiring the payload data;
- wherein the at least one data packet comprises at least two indicators that are arranged spaced apart from one another in the data packet;
- determining a degree of interference of part of the channel-coded payload data that has a lower distance to one of the at least two spaced-apart indicators in the data packet more strongly in dependence on the comparison of the one indicator with the respective reference indicator than part of the payload data that has a greater distance to the indicator in the at least one data packet,
- when said computer program is run by a computer.
7 more elements
Dependencies are inferred from the claim text.