Detection Of Inconsistent Data In A Data Transmission
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsAlexey Shapin, Niklas Andgart, Kittipong Kittichokechai, Mårten Sundberg, Gustav Wikström
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Abstract
The present disclosure provides methods and apparatus for detecting when a data transmission has been preempted or punctured by detecting inconsistency in the modulation or other signal characteristic of a received signal. If an inconsistency is detected, measures can be taken to mitigate potential problems caused by the inconsistent data. In one example, the receiving device (30) may identify soft bits in a soft buffer that may have been corrupted and flush the corrupted parts from the soft buffer.
Claims27
1-39. (canceled)
A method of detecting inconsistent data in a data transmission affected by a data insertion or interference, the method comprising:
- receiving a data signal from a transmitting device;
- demodulating the data signal to generate soft bit values;
- computing detection metrics for two or more subsets of the soft bit values;
- and
- detecting inconsistent data in at least one subset of the soft bit values based on the detection metrics corresponding to the at least one subset.
A receiving device configured to detect inconsistent data in a data transmission affected by a data insertion or interference, the receiving device comprising:
- a receiving circuit configured to receive a data signal from a transmitting device;
- a demodulator configured to demodulate the data signal to generate soft bit values;
- and
- a detection circuit configured to:
- compute detection metrics for two or more subsets of the soft bit values;
- and
- detect inconsistent data in at least one subset of the soft bit values based on the detection metrics corresponding to the at least one subset.
Dependencies are inferred from the claim text.