Abstract:
A method and a device for performing active scanning are disclosed. The method for active scanning of a STA comprises the steps of: transmitting a probe request frame that contains channel monitoring type information in a scanning channel; determining whether the scanning channel is in a busy state until a MinimumChannelTime; determining whether a PPDU including a valid PLCP header is received in the scanning channel until the MinimumChannelTime; and determining a time for monitoring a probe response frame transmitted by the AP in the scanning channel based on whether the PPDU is received until the MinimumChannelTime and channel monitoring type information, when the scanning channel is in the busy state, wherein the channel monitoring type information can contain information on a type with which the STA monitors the probe response frame in the scanning channel.
Abstract:
The present invention relates to a wireless communication system, and a method for executing a service search and an advertisement. To this end, the method by which a first wireless device performs a service search comprises the steps of: transmitting a probe request frame which includes a hash value; receiving, from a second wireless device, a probe response frame which includes first service information corresponding to the hash value; transmitting a service search request frame which includes a search word to the second wireless device; and receiving, from the second wireless device, a service search response frame which includes second service information corresponding to the search word, wherein if a preset symbol is attached to the search word, the second service information can include at least one service name having the search word as a prefix.
Abstract:
The present invention relates to a wireless communication system, and more particularly, to a service discovery method and device in a wireless LAN system. A service discovery method in a wireless LAN system according to one embodiment of the present invention can comprise: transmitting, by a request device, a service discovery request frame to a response device; and receiving, by the request device, a service discovery response frame, which comprises service information of the response device and service information of each of one or more other devices, from the response device. The one or more other devices can comprise a device which does not belong to the same group as the response device.
Abstract:
A method of sharing a service provided to a neighboring user equipment, which is shared by a user equipment in a wireless communication system, includes the steps of obtaining at least one URL (uniform resource locator) information corresponding to an IP (internet protocol)-based service provided by a first communication network by the neighboring user equipment, executing an application corresponding to the obtained URL information and making a request for the IP-based service to the first communication network, receiving the requested IP-based service from the first communication network, and controlling the application to execute the received IP-based service.
Abstract:
Disclosed are a method and an apparatus for generating an STF signal usable in a wireless LAN system. The STF signal is included in a field used to improve AGC estimation of a MIMO transmission. A portion of the STF signal is used to transmit an uplink, and can be used for uplink MU PPDUs transmitted from a plurality of STAs. The STF signal that is disclosed, for example, is used for a 40 MHz band or an 80 MHz band, is desirably usable for the 40 MHz band, and can be generated based on a sequence in which a predetermined M sequence is repeated. The predetermined M sequence can be a binary sequence of which the length is 15 bits.
Abstract:
A wireless communication system and, more particularly, to a method for performing efficient signaling for a reserved sub-band in a wireless LAN system, and a method and an apparatus for signal transmission using the same. To this end, an STA provides resource allocation information for transmitting data to a plurality of STAs using an orthogonal frequency divisional multiple access (OFDMA) or multiple user MIMO (MU-MIMO) method; transmits the resource allocation information to the plurality of STAs; and transmits data to the plurality of STAs according to the resource allocation information. The entire frequency band may include a sub-band which is not used for the data transmission, and it is preferable that the resource allocation information includes a resource allocation bitmap having a form common to the plurality of STAs and indication information which informs a sub-band, from among the entire frequency band, which is not used for the data transmission.
Abstract:
Proposed are a method and device for performing wireless sensing in a wireless LAN system based on wireless sensing. Specifically, a wireless apparatus collects CSI data and lifelog. The wireless apparatus performs learning and prediction on the basis of the CSI data to acquire a first user estimation result. When the first user estimation result is at most a threshold value, the wireless apparatus predicts a second user estimation result on the basis of the lifelog.
Abstract:
A method and apparatus for performing wireless sensing in a wireless LAN system on the basis of wireless sensing are proposed. Specifically, a wireless device determines a first time for collecting empty data. The wireless device collects empty data during the first time. The empty data is a wireless signal when there is no user in a preset space.
Abstract:
Provided are a method for transmitting and receiving data and a device for same in a short-range wireless communication system. More specifically, the method comprises the steps of: receiving, from a first slave device, a first advertising message for providing a service related to transmitting and receiving the data; forming a shared link, which is for transmitting and receiving the data and is formed on the basis of the first advertising message, on the basis of link parameters for the configuration of the shared link, the shared link including (i) a first link for data transmission from a master device to a slave device, and (ii) a second link for data transmission from the slave device to the master device; and receiving, from a second slave device, a second advertising message for providing the service. wherein the link parameters applied to the shared link are updated on the basis of the second advertising message in order to add the second slave device as a slave device related to the shared link, and the updated link parameters are configured as different values for each of (i) the first link, and (ii) the second link on the basis of the characteristics of the first and second links.
Abstract:
Proposed are a method and an apparatus in which a plurality of CHIP controllers control an accessory STA in a wireless LAN system in a smart home environment. Particularly, the accessory STA performs a connection procedure for a first CHIP network to which a first controller belongs. The accessory STA receives a set configuration request message from the first controller. The accessory STA transmits a set configuration response message to the first controller. The accessory STA performs a connection procedure for a second CHIP network to which a second controller belongs.