Abstract:
A method is presented for a mobile station operating in a wireless communication system. The mobile station receives configuration information for power management from a base station. The configuration information informs the mobile station a first time period during which the mobile station monitors signals from the base station and a second time period during which the mobile station does not monitor signals from the base station. The mobile station applies the configuration information for power management to one or more primary carriers and one or more activated secondary carriers. The mobile station receives downlink data from the base station via the one or more primary carriers and the one or more activated secondary carriers during the first time period. The mobile station receives a specific Medium Access Control (MAC) message from the base station, wherein the mobile station stops the first time period when receiving the specific MAC message.
Abstract:
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.
Abstract:
The present invention relates to a wireless communication system, and more specifically, a method and a device whereby a station (STA) performs link setup with an access point (AP) in a WLAN system are disclosed. The method according to one embodiment of the present invention comprises: a step in which an STA receives a first frame related to link setup from an AP in a wireless communication system; and a step in which a second frame related to association is transmitted to the AP, wherein the first frame is a fast initial link setup (FILS) discovery frame and the second frame may comprise timestamp request information in case an AP configuration change count (CCC) value the STA has and an AP CCC value included in the received first frame are determined to be the same.
Abstract:
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.
Abstract:
The present invention is directed to a wireless communication system. Specifically, the present invention is directed to a method of controlling network access and an apparatus therefore, wherein the method comprises: receiving a first field for indicating network overload situation and a second field for indicating a network access priority; and receiving at least one of a N-bit field for indicating a first back-off window and a M-bit field for indicating a second back-off window, wherein if a configured priority is equal to or higher than the network access priority, a random access (RA) procedure is performed using the first back-off window, wherein if the configured priority is lower than the network access priority, the RA procedure is selectively barred or performed using at least one of the first back-off window and the second back-off window.
Abstract:
The present invention relates to a method and apparatus for associating a station (STA) with an access point (AP). The method for associating a first AP with an STA in a wireless LAN includes the steps of: a first AP receiving an association request frame from the STA; the first AP requesting authentication information on the STA from a second AP with which the STA was previously associated; the first AP receiving authentication information on the STA from the second AP, wherein the first and second AP's are linked by a distribution system, the association request frame includes identification information on the second AP, and the authentication information on the STA can include at least one of a paired main key (PMK) and a recertification main session key (rMSK). Accordingly, fast association between the STA and the AP can be achieved by a simplified authentication procedure without repeating a full authentication procedure.
Abstract:
A method for scanning assigned carriers in a multicarrier system may include receiving a multicarrier advertisement message from a base station, the multicarrier advertisement message including scan reporting trigger control information of assigned secondary carriers, performing scanning for the assigned secondary carriers, and reporting the scan results to the base station when a specific metric measured by the scanning meets a condition set in the scan reporting trigger control information.
Abstract:
The present invention is directed to a method and an apparatus for use in a wireless communication system. Specifically, the present invention is directed to a method and an apparatus of performing a network access procedure, the method comprising: receiving system information including Application-based (APP-based) information set, wherein the APP-based information set includes one or more APP-based information subsets, and each APP-based information subset is used to control network access per application; and performing the network access procedure under control of APP-based information subset corresponding to an application that causes the network access procedure.
Abstract:
The present invention is directed to a method and an apparatus for use in a wireless communication system. Specifically, the present invention is directed to a method of performing a discovery procedure for a ProSe and an apparatus therefore, in which the method comprises: receiving first resource allocation information for plural ProSe channels from a base station via a broadcast signal; sensing the plural ProSe channels; transmitting a sensing result for the plural ProSe channels to the base station; receiving second resource allocation information indicating one of the plural ProSe channels from the base station via a unicast signal; and transmitting a discovery signal via the ProSe channel indicated by the second resource allocation information.
Abstract:
The present invention relates to a wireless communication system and, more specifically, to a method and a device for updating system information in a wireless LAN system. The method for updating system information in a station (STA) of a wireless communication system, according to one embodiment of the present invention, comprising: allowing the STA to transmit, to an access point (AP), a probe request frame that includes a change sequence field which is set to a value of a change sequence field stored in the STA, if a value of a change sequence field received from the AP is different from the value of the change sequence field stored in the STA; and allowing the STA to receive, from the AP, a probe response frame which responds to the probe request frame that includes the change sequence field, wherein the probe request frame is a short probe request frame.