Preamble configuring method in the wireless LAN system, and a method for a frame synchronization
AssigneeElectronics and Telecommunications Research Institute
InventorsWoo-Yong Lee, Sok-Kyu Lee
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Abstract
A method of configuring a preamble of a downlink frame for synchronization in data frame transmission of a 60 GHz wireless local area network system, the method comprising arranging a short preamble having a plurality of repetitive S symbols, and an IS symbol, and arranging a long preamble having a long cyclic prefix (CP) and a plurality of L symbols for frame synchronization and symbol timing by performing auto-correlation according to the length of window of the auto-correlation.
Claims2
A method to configure a frame in a wireless local area network system, the method comprising:
- arranging a short preamble used for synchronization in a receiver at a starting point of a burst, wherein arranging the short preamble comprises:
- arranging S symbols at the starting point, and
- arranging an IS symbol after the S symbols, wherein the IS symbol has the same length as the S symbol and is 180°-phased with respect to the S symbol;
- and
- arranging a channel estimation preamble used for channel estimation in the receiver after the short preamble,
- wherein an S symbol of the S symbols is repeated 16 times.
An apparatus for configuring a frame in a wireless local area network system, the apparatus comprising:
- one or more processors that arrange a short preamble used for synchronization in a receiver at a starting point of a burst, and arrange a channel estimation preamble used for channel estimation in the receiver after the short preamble,
- wherein the one or more processors arrange the short preamble by arranging S symbols at the starting point and arranging an IS symbol after the S symbols,
- wherein the IS symbol has the same length as the S symbol and is 180°-phased with respect to the S symbol, and
- wherein an S symbol of the S symbols is repeated 16 times.
Dependencies are inferred from the claim text.