Method and apparatus for transmitting and receiving a pilot sequence in a broadcasting communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsSung-Ryul YUN, Hong-Sil Jeong
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Abstract
A method and an apparatus for transmitting and receiving a pilot sequence in an Single Carrier-Orthogonal Frequency Division Multiplexing (SC-OFDM) scheme of a broadcasting communication system. The method includes determining seed values for Orthogonal Frequency Division Multiplexing (OFDM) symbols; generating pilot sequences including information related to an OFDM symbol index by applying a Zadoff-Chu sequence to each of the seed values; inserting the pilot sequences into a determined subcarrier position in a frame according to a pilot pattern; and transmitting the frame.
Claims20
A method of transmitting a pilot sequence in a broadcasting communication system, the method comprising:
- determining seed values for Orthogonal Frequency Division Multiplexing (OFDM) symbols;
- generating pilot sequences including information related to an OFDM symbol index by applying a Zadoff-Chu sequence to each of the seed values;
- inserting the pilot sequences into a determined subcarrier position in a frame according to a pilot pattern;
- and
- transmitting the frame.
A method of receiving a pilot sequence in a broadcasting communication system, the method comprising:
- detecting a position of a pilot subcarrier in a received frame, by comparing sizes of the pilot subcarrier and a data subcarrier included in a received frame;
- identifying a pilot sequence corresponding to the position of the pilot subcarrier;
- detecting a seed value from the pilot sequence;
- and
- detecting information related to an Orthogonal Frequency Division Multiplexing (OFDM) symbol index, using the position of the pilot subcarrier and the seed value,
- wherein the pilot sequences are inserted into a determined subcarrier position of the frame according to a pilot pattern, and
- wherein the pilot sequence is generated by applying a Zadoff-Chu sequence to each of a plurality of seed values including the seed value.
An apparatus for transmitting a pilot sequence in a broadcasting communication system, the apparatus comprising:
- a control unit that determines seed values for Orthogonal Frequency Division Multiplexing (OFDM) symbols, generates pilot sequences including information related to an OFDM symbol index by applying a Zadoff-Chu sequence to each of the seed values, and inserts the pilot sequences into a determined subcarrier position in a frame according to a pilot pattern;
- and
- a transmission unit that transmits the frame.
An apparatus for receiving a pilot sequence in a broadcasting communication system, the apparatus comprising:
- a reception unit that receives a frame from a transmitter;
- and
- a control unit that detects a position of a pilot subcarrier included in the frame by comparing sizes of the pilot subcarrier and a data subcarrier included in the frame, identifies a pilot sequence corresponding to the position of the pilot subcarrier, detects a seed value from the pilot sequence, and detects information related to an Orthogonal Frequency Division Multiplexing (OFDM) symbol index, using the position of the pilot subcarrier and the seed value,
- wherein the pilot sequences are inserted into a determined subcarrier position of the frame according to a pilot pattern, and
- wherein the pilot sequence is generated by applying a Zadoff-Chu sequence to each of a plurality of seed values including the seed value.
Dependencies are inferred from the claim text.