1. Field of the Invention
The present invention relates to wireless communication, and more particularly, to a method for transmitting a data unit in a wireless local area network system and a device for supporting the same.
2. Related Art
In recent years, with the development of information and communication technology, various wireless communication technologies have been developed. Among them, a Wireless Local Area Network (WLAN) is a technology that enables a portable terminal such as a Personal Digital Assistant (PDA), a laptop computer, and a Portable Multimedia Player (PMP) to access an Internet in a wireless scheme at a house, a business, or a specific service providing zone.
Unlike an existing wireless LAND system for supporting High Throughput (HT) and High Throughput (VHT) using 20/40/80/160/80+80 MHz bandwidth of 2 GHz and/or 5 GHz band, a wireless LAN system capable of being operated at a band less than 1 GHz is suggested. If the wireless LAN system is operated at a band less than 1 GHz, service coverage by an access point AP may be expanded as compared with an existing LAN system. Accordingly, one AP manages more STAs.
Meanwhile, according to variation in a frequency band and a bandwidth of a used wireless channel, and rapid increase of service coverage due to this, various implementation examples with respect to a format of a new data unit usable in a next generation wireless LAN system and a transmitting method according thereto have been provided. According to the varied wireless environment and introduction of a varied format of the data unit, there is a need to suggest a method of transmitting data units capable of reducing performance degradation of a wireless LAN system and providing more efficient data processing performance.