摘要:
A method of transmitting modulation and coding scheme (MCS) feedback (MFB) in a wireless local area network system is provided. The method is performed by a first station and includes receiving, from a second station, a physical layer convergence procedure (PLCP) protocol data unit (PPDU), estimating a MFB based on the PPDU and transmitting, to the second station, feedback information including a MFB field and a MFB type field. The MFB field includes the MFB and the MFB type field indicates whether or not the MFB is in response to a MFB request (MRQ) of the second station.
摘要:
A method of receiving a multi-user packet by a receiver in a wireless local area network system. The method includes: receiving a first group identifier (ID) management request message from a transmitter, wherein the group ID management request message includes information about at least one group ID which is intended to be allocated to the receiver for multi user-multiple input multiple output (MU-MIMO) transmission, and the information about the at least one group ID indicates each group ID and a spatial stream set position for the each group ID; transmitting a first group ID management response message to the transmitter, wherein the group ID management response message indicates admission or adjustment for allocation of the at least one group ID; and receiving at least one multi-user packet from the transmitter, wherein the multi-user packet is transmitted using MU-MIMO transmission.
摘要:
A method of transmitting management information, performed by an access point (AP), in a wireless local area network system. The method according to one embodiment includes transmitting, to a station, a frame including a basic service set (BSS) load information element, the BSS load information element including a multi user (MU) multiple input multiple output (MIMO) capable station (STA) count field and a plurality of bandwidth utilization fields. The MU-MIMO capable STA count field indicates a total number of STAB with MU reception capability currently associated with a candidate BSS managed by the AP. Each of the plurality of bandwidth utilization fields includes information about time that each corresponding channel width is busy.
摘要:
A method and apparatus of scanning channels of a white space zone in a wireless local area network is provided. A beacon frame includes a white space map including information about whether each white space channel in the white space zone is occupied by an incumbent user. Channels of the white space zone are scanned based on the white space map.
摘要:
An embodiment of the present invention provides a method of controlling channel access in a WLAN system, comprising receiving, from an access point, a first channel access control message sent to stations located in some area through a directional antenna of the access point, and attempting to access a channel according to the first channel access control message. The method enables coexistence of several users and improves scalability of a wireless system.
摘要:
A wireless local area network (WLAN) apparatus for a WLAN system includes a first medium access protocol (MAC) entity which supports a first frequency band; and a second MAC entity which supports a second frequency band, wherein a MAC management frame for the first frequency band is encapsulated in a MAC management frame for the second frequency band, and transmitted through the second frequency band.
摘要:
A method of transmitting a spatial stream for multi user (MU)-multiple input multiple output (MIMO) in a wireless local area network system, performed by a transmitter is provided. the method includes transmitting, to a receiver, a management frame including group information to assign or change a position of a plurality of spatial streams corresponding to each of a plurality of groups, and transmitting, to the receiver, a frame including at least one spatial stream, wherein the group information includes a plurality of group indicators and a plurality of spatial stream (SS) indicators, each of the plurality of group indicators indicating whether or not the receiver is a member of each of the plurality of groups, each of the plurality of SS indicators indicating a position of the plurality of spatial streams corresponding to each of the plurality of groups.
摘要:
There is provided a method and apparatus for transmitting a frame which is performed by a transmission STA in a WLAN system. The method of transmitting a frame according to the present invention includes generating an MAC Protocol Data Unit (MPDU) to be transmitted to a target station, generating a PLCP Protocol Data Unit (PPDU) by attaching a Physical Layer Convergence Procedure (PLCP) header to the MPDU, and transmitting the PPDU to the target station. The PLCP header comprises a partial Association ID (AID) of the target station.
摘要:
A method and apparatus of scanning channels of a white space zone in a wireless local area network is provided. A response frame includes a white space map including information about whether each white space channel in the white space zone is occupied by an incumbent user. Channels of the white space zone are scanned based on the white space map.
摘要:
A method and apparatus of accessing a channel in a wireless communication system is provided. The method includes receiving a first frame including configuration information on a channel allocated from a bandwidth including a primary channel, a secondary channel and an extension channel from an access point (AP), and transmitting a second frame to the AP by using the allocated channel. The configuration information includes an extension channel offset element field that sets the extension channel as the offset of the primary channel.