Patent application number | Description | Published |
20150181507 | METHOD AND APPARATUS FOR SCANNING IN WIRELESS LAN - A method and an apparatus for scanning in a wireless LAN are disclosed. The method for scanning in a wireless LAN comprises the steps of: enabling a station (STA) to receive, from a first access point (AP) operated in a first channel, a detection frame comprising identifier information of a second AP operated in a second channel and beacon frame transmission time information of the second AP, and enabling the STA to scan a beacon frame of the second AP on the basis of the beacon frame transmission time information of the second AP. Thus, the present invention can rapidly perform a scanning operation. | 06-25-2015 |
20150208330 | SCANNING METHOD AND APPARATUS IN WIRELESS LAN - A scanning method and apparatus in wireless LAN is disclosed. The method comprises determining, by an access point (AP), whether to accommodate a station (STA) conducting an initial link setup and transmitting, by the AP, a frame to the STA, the frame including scanning redirection information for the STA to switch other channel, other band, or a neighbor AP when the AP determines not to accommodate the STA. The scanning redirection information includes a band field and a channel field. The band field indicating a band in which the STA conducts the initial link setup when the STA conducts the initial link setup from current band to the other band. The channel field indicating a channel in which the STA conducts the initial link setup when the STA conducts the initial link setup from current channel to the other channel. | 07-23-2015 |
20150208444 | METHOD AND APPARATUS FOR ACCESSING CHANNEL IN WIRELESS LAN - Disclosed are a method and an apparatus for accessing a channel in a wireless LAN. A method for a station (STA) initially accessing the channel in the wireless LAN comprises the steps of: the STA receiving from an access point (AP) a frame including channel state information and a set of an N (a natural number wherein N>1) number of access parameter sets; the STA selecting a random variable when the channel state information indicates that a wireless link is busy; the STA selecting one access parameter set from the N number of access parameter sets on the basis of the one access parameter and transmitting an association request frame to the AP. | 07-23-2015 |
20150222447 | METHOD AND APPARATUS FOR SCANNING IN WIRELESS LAN - Disclosed are a method and an apparatus for scanning in a wireless LAN. A method for scanning by a station (STA) can comprise the steps of: the STA generating a MAC layer management entity (MLME).SCAN.request.primitive comprising information for a basic service set identifier (BSSID) and a service set identifier (SSID); the STA generating a probe request frame comprising wildcard BSSID and SSID; the STA multi-casting the probe request frame to a first AP forming an extended service set (ESS) network using a particular SSID; and the STA receiving a probe response frame broadcast from the first AP as a response to the probe request frame. | 08-06-2015 |
20150230093 | METHOD AND APPARATUS FOR ACCESSING INITIAL CHANNEL IN WIRELESS LAN - A method for accessing an initial channel by a STA can comprise the steps of: the STA receiving, via a first band from a multiband AP, a scanning frame comprising a neighboring AP information element, wherein the neighboring AP information element comprises information for a second band which is an operating band for the neighboring AP; the STA determining whether accessing the neighboring AP is possible on the basis of information comprised in the neighboring AP information element regarding an access network type of the neighboring AP operating in the second band; if access to the neighboring AP is possible, the STA transmitting an association request frame to the neighboring AP via the second band, wherein the access network type can comprise information regarding an access permission type of a neighboring AP. | 08-13-2015 |
20150230161 | METHOD AND APPARATUS FOR SCANNING IN A WIRELESS LAN - Disclosed are a method and an apparatus for scanning in a wireless LAN. The method may comprise the following steps: an STA determining identifier information of an AP to be included in a probe request frame as a wildcard SSID and a wildcard BSSID, based on a first MLME; the STA receiving from the AP a frame including information on the BSSID of the AP and the SSID of the AP before a probe delay time expires; the STA determining wither the AP is a target AP based on the BSSID and the SSID; the STA redetermining the identifier information of the AP to be included in the probe request frame based on the BSSID and the SSID, when the AP is the target AP; and the STA unicasting a probe request frame that is re-determined based on the BSSID and the SSID. | 08-13-2015 |
20150230162 | METHOD AND APPARATUS FOR SCANNING IN WIRELESS LAN - A method for scanning by a STA can comprise the steps of: the STA unicasting a probe request frame to a target AP from a first channel, the target AP having been determined in accordance with a BSSID comprised in a primitive; the STA processing an ACK transmitted via the first channel within a first ACK transmission time, and determining whether the first ACK for the probe request frame is received; if the first ACK is received within the first ACK transmission time, then the STA monitoring a probe response frame, which is a response to the probe request frame from the first channel; and if the first ACK is not received within the first ACK transmission time, then regardless of a CCA level detected during the first ACK transmission time, the STA switching the scanning channel. | 08-13-2015 |
Patent application number | Description | Published |
20150304940 | ACTIVE SCANNING METHOD AND DEVICE - Disclosed are an active scanning method and an active scanning device. The active scanning method in a wireless LAN comprises the steps of: a second station (STA) receiving a first probe request frame which has been broadcast by a first STA; and the second STA broadcasting a second probe request frame. The second probe request frame may include a probe request frame detection field, and the probe request frame detection field may indicate that the second STA has received the first probe request frame. Accordingly, a probe response frame is broadcast to a plurality of STAs, thus simplifying a scanning procedure. | 10-22-2015 |
20150305069 | METHOD AND APPARATUS OF UPLINK SET-UP IN A WIRELESS COMMUNICATION SYSTEM - The present invention is directed to a wireless communication system. Specifically, the present invention is directed to a method of performing a procedure for link-setup and an apparatus therefore, wherein the method comprises: receiving a probe request frame including time information via a channel, wherein the time information indicates at least one of a minimum scan time for the channel and a maximum scan time for the channel; and performing a procedure for transmitting a probe response frame after receipt of the probe request frame, wherein if a beacon transmission time occurs within a time given based on the time information, transmission of the probe response frame is omitted. | 10-22-2015 |
20160007386 | METHOD AND APPARATUS FOR FILTERING-BASED SCANNING IN WLAN SYSTEM - The present invention relates to a wireless communication system, and more specifically, disclosed are a method and an apparatus for filtering-based scanning in a WLAN system. A method for a station (STA) setting up a high-speed link in the wireless communication system, according to one embodiment of the present invention, comprises the steps of: transmitting a first frame comprising filtering information to at least one access point (AP); and receiving a second frame from a portion or all of the at least one AP, wherein whether to transmit the second frame can be determined on the basis of the filtering information. | 01-07-2016 |
Patent application number | Description | Published |
20160094323 | INTERCELL INTERFERENCE CONTROL THROUGH CONTROL SIGNAL PROVIDED BY TERMINAL - The present disclosure relates to a wireless communication system, and more particularly to a method for transmitting a reference signal in a wireless communication system. A new structure allows coexistence of a control channel and a data cannel in one time-frequency resource, thereby increasing efficiency of resources. The data and control channels coexist using a time division scheme. The coexistent control channels reallocate regions of the control signal and reference signal to maintain reliability of the control signal. Also proposed are an auxiliary control signal for measuring or controlling inter-cell interference and a method for thereby controlling interference of a base station/terminal. A new control channel structure is designed for transmitting the auxiliary control signal, whereby enabling coexistence with the legacy terminal. This provides a method for transmission/reception of relevant information between the base station and terminals to prevent erroneous operation of the legacy terminal. | 03-31-2016 |
20160095077 | NEW TDD FRAME STRUCTURE FOR UPLINK CENTRALIZED TRANSMISSION - The present disclosure relates to a wireless communication system, and more particularly to a method for transmitting synchronization channel and cell search signal in wireless communication system. Synchronization channel and cell search signal allow a terminal in a multi-layer cell supporting multiple carriers to effectively search and distinguish cells at different frequencies. To minimize terminal power consumption, new cell search signal transmission method proposes that base station connected at a frequency be used for transmitting information by other base stations at different frequencies, thereby allowing the terminal to readily recognizing neighbor cells and to determine about performing additional cell search. For the multi-layer cell to clearly distinguish cell identifications including inter-frequency measurement information, a cell ID pair between macro/small cells is proposed, achieving enhanced small cell efficiency. An uplink centralized transmission frame supports a multi-layer cell based on TDD, proposing a method for configuring synchronization signal in corresponding frame. | 03-31-2016 |
20160105871 | ADDITIONAL CONFIGURATION OF SMALL CELL NETWORK DATA RESOURCE USING COMMON REFERENCE SIGNAL - The present disclosure relates to a wireless communication system. The present disclosure relates to a wireless communication system supporting at least one of SC-FDMA, MC-FDMA and OFDMA, and more particularly, to a method for transmitting a reference signal in a wireless communication system. The present disclosure proposes a method for selecting, from common reference signals, a reference signal in a downlink data region and assigning the selected reference signal to a scheduling channel of the downlink data for data transfer, further proposes a method for selecting some common reference signals and diverting them to demodulation reference signals, and thereby promotes a reduction of the system overhead and an increase of data transmission capacity. Moreover, the present disclosure proposes preventing malfunction of the legacy terminals with a method for transmitting and receiving related information between terminals and base stations. | 04-14-2016 |