Systems and methods for code sequence extension over transmission in wireless communication environments
AssigneeAcer Incorporated
InventorYan-Xiu ZHENG
Life of this patent
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Abstract
A transmitter for transmitting signals to a receiver is provided. The transmitter generates a padded code sequence including a plurality of symbols with the last symbol being a duplication of the first symbol, and transmit the padded code sequence with the symbols therein respectively corresponding to a plurality of first sub-carriers to the receiver via an air interface using a first antenna in a time period. Also, the transmitter duplicates the padded code sequence and transmits the duplicated padded code sequence with the symbols therein respectively corresponding to a plurality of second sub-carriers to the receiver via the air interface using a second antenna in the time period.
Claims76
A transmitter for transmitting signals to a receiver, wherein the transmitter is configured to generate a padded code sequence comprising a plurality of symbols with the last symbol being a duplication of the first symbol, transmit the padded code sequence with the symbols therein respectively corresponding to a plurality of first sub-carriers to the receiver via an air interface using a first antenna in a time period, and duplicate the padded code sequence and transmit the duplicated padded code sequence with the symbols therein respectively corresponding to a plurality of second sub-carriers to the receiver via the air interface using a second antenna in the time period.
An OFDM transmitter for transmitting signals to a receiver, wherein the OFDM transmitter is configured to generate a padded Zadoff-Chu code sequence comprising a plurality of symbols for a ranging preamble code with the last symbol being a duplication of the first symbol and transmit the padded Zadoff-Chu code sequence to a receiver via an air interface.
A transmission method for a wireless communication device, comprising:
- generating a padded code sequence comprising a plurality of symbols with the last symbol being a duplication of the first symbol;
- transmitting the padded code sequence with the symbols therein respectively corresponding to a plurality of first sub-carriers to a receiver via an air interface using a first antenna in a time period;
- and
- duplicating the padded code sequence and transmitting the duplicated and padded code sequence with the symbols therein respectively corresponding to a plurality of second sub-carriers to the receiver via the air interface using a second antenna in the time period.
A transmission method for an OFDM wireless communication device, comprising:
- generating a padded Zadoff-Chu code sequence comprising a plurality of symbols for a ranging preamble code with the last symbol being a duplication of the first symbol;
- and
- transmitting the padded Zadoff-Chu code sequence to a receiver via an air interface.
A non-transitory machine-readable storage medium comprising a computer program, when executed, causes a wireless communication device to perform a transmission method, wherein the transmission method comprises:
- generating a padded code sequence comprising a plurality of symbols with the last symbol being a duplication of the first symbol;
- transmitting the padded code sequence with the symbols therein respectively corresponding to a plurality of first sub-carriers to a receiver via an air interface using a first antenna in a time period;
- and
- duplicating the padded code sequence and transmitting the duplicated and padded code sequence with the symbols therein respectively corresponding to a plurality of second sub-carriers to the receiver via the air interface using a second antenna in the time period.
A non-transitory machine-readable storage medium comprising a computer program, when executed, causes an OFDM wireless communication device to perform a transmission method, wherein the transmission method comprises:
- generating a padded Zadoff-Chu code sequence comprising a plurality of symbols for a ranging preamble code with the last symbol being a duplication of the first symbol;
- and
- transmitting the padded Zadoff-Chu code sequence to a receiver via an air interface.
Dependencies are inferred from the claim text.