Tentpoles scheme to achieve reliable V2V communications
AssigneesGM Global Technology Operations LLC, Carnegie Mellon University
InventorsZheng Li, Fan Bai, Vijayakumar Bhagavatula
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Abstract
A communications system including a transmitter and a receiver. The transmitter transmits a signal with normal data symbols and at least one dual-use data symbol, where the dual-use data symbol has user data and more data protection than the normal data symbols. The receiver receives the transmitted signal and decodes the dual-use data symbol and uses information from decoding of the dual-use data symbol to improve a channel estimate for the normal data symbols.
Claims18
A communications system comprising:
- a transmitter that transmits a signal including user data as normal data symbols and at least one dual-use data symbol, where the at least one dual-use data symbol includes data and additional training symbols, said at least one dual-use data symbol having extra protection that is better than the normal data symbols;
- and a receiver that receives the signal, said receiver decoding the at least one dual-use data symbol and identifying information in the at least one dual-use data symbol that improves channel estimation accuracy, where the transmitter varies the at least one dual-use data symbol based on a channel condition, where the channel condition defines the reliability of the channel.
A communications system comprising:
- a transmitter that transmits a signal including user data in normal subcarriers and in at least one dual-use subcarrier where the at least one dual- use subcarrier includes data and additional training symbols, said at least one dual-use subcarrier having extra protection that is better than the normal subcarriers;
- and a receiver that receives the signal, decodes the at least one dual-use subcarrier and uses information from decoding the subcarrier to improve an estimation accuracy of the normal subcarrier, where the transmitter varies the at least one dual-use data symbol based on a channel condition, where the channel condition defines the reliability of the channel.
A vehicular communications system comprising:
- a transmitter transmitting a signal with user data as normal data symbols and at least one dual-use data symbol, where the at least one dual-use data symbol includes data and additional training symbols, said at least one dual- use data symbol having extra protection that is better than the normal data symbols;
- and a receiver that receives the signal, decodes the at least one dual- use data symbol and uses information from decoding the at least one dual-use data symbol to improve accuracy of a channel estimation, where the transmitter varies the at least one dual-use data symbol based on a channel condition, where the channel condition defines the reliability of the channel.
Dependencies are inferred from the claim text.