Abstract:
A method and an apparatus for scanning existing networks in TV White Space are disclosed. For scanning existing networks at a station to operate as an unlicensed device in a regulatory domain where a licensed device and the unlicensed device are permitted to operate, the method comprises: receiving a white space map (WSM) comprising information for available channels to be used for the unlicensed device to operate a wireless local area network (WLAN) operation and maximum transmission powers allowed for each of the available channels from an enabling station, wherein the enabling station is a station determining the available channels at its location using its own geographic location identification and a regulatory database access capability; and scanning the existing networks on the available channels identified within the received WSM.
Abstract translation:公开了一种用于扫描TV White Space中现有网络的方法和装置。 为了扫描站点处的现有网络以在许可设备和非许可设备被允许操作的调节域中作为未许可设备操作,所述方法包括:接收包括要使用的可用信道的信息的空白地图(WSM) 用于未许可的设备操作无线局域网(WLAN)操作和从启用站允许每个可用信道的最大发射功率,其中启用站是使用其自己的地理位置来确定其位置处的可用信道的站 识别和监管数据库访问能力; 并扫描在所接收的WSM内标识的可用信道上的现有网络。
Abstract:
A method for power saving in a wireless local area network. The method according to one embodiment includes acquiring, by a wireless device, a transmission opportunity (TXOP); and receiving a signal field from the transmitting device. A group identifier indicates recipients, a number indicator indicates spatial streams, and a power saving indicator indicates that the transmitting device is allowed to enter a doze state during the TXOP. The method according to the embodiment further includes determining, by the wireless device, whether a first condition or a second condition is satisfied. The first condition is satisfied if the power saving indicator indicates an allowance, the wireless device is a recipient indicated by the group identifier, and the number of spatial streams is equal to zero. The second condition is satisfied if the power saving indicator indicates an allowance, and the wireless device is not a recipient indicated by the group identifier.
Abstract:
A method for a wireless local area network. The method according to one embodiment is performed by an access point and includes receiving a power save (PS) poll on a first 20 MHz channel from a station operating in a power save mode; receiving at least one duplicated PS poll frame on at least one second 20 MHz channel from the station, the at least one duplicated PS poll frame including at least one duplicate of the PS poll frame; and transmitting a buffered frame to the station as a response to at least one of the PS poll frame and the at least one duplicated PS poll frame.
Abstract:
A method and apparatus are described for performing cipher communication in a wireless local area network system. A pseudo noise (PN) code sequence for a plaintext Medium Access Control (MAC) protocol data unit (MPDU) is obtained. An additional authentication data (AAD) is constructed by using at least one field in a header of the plaintext MPDU. A Nonce is constructed from the PN code sequence, an Address 2 field in the header of the plaintext MPDU and a Priority field in the header of the plaintext MPDU. A counter mode (CTR) is generated with cipher block chaining (CBC)-MAC Protocol (CCMP) header. Encrypted data and Message Integrity Code (MIC) are generated by using a temporal key, the AAD, and the Nonce. An encrypted MPDU is generated to be transmitted to a peer station by combining the plaintext MPDU header, the CCMP header, the encrypted data and the MIC.
Abstract:
A wireless local area network (WLAN) apparatus for a WLAN system is provided that includes a first medium access protocol (MAC) entity supporting a first frequency band and a second MAC entity supporting a second frequency band, where a MAC management frame for the first frequency band is encapsulated in a MAC management frame for the second frequency band and transmitted via the second frequency band.
Abstract:
A method for a wireless local area network, the method including selecting, by an access point (AP), a direct link setup (DLS) channel among a plurality of channels, the DLS channel being used for a communication of a DLS link between a first station and a second station; and transmitting, by the AP, a control frame to the first station and the second station, the control frame including a channel field indicating the DLS channel.
Abstract:
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.
Abstract:
A method of operating in a wireless local area network system is provided. The method includes receiving a channel usage response from an access point, the channel usage response comprising channel usage information and transmit power regulation information, the channel usage information being for coexistence with an infrastructure network, and operating by using the channel usage information. The channel usage information includes at least one channel entry field indicating at least one recommended channel and a usage mode field indicating usage of the at least one recommended channel listed in the at least one channel entry field. The transmit power regulation information includes a plurality of maximum transmit power fields. Each of maximum transmit power field specifies a maximum transmit power limit for transmission on a corresponding channel bandwidth.
Abstract:
There is provided a method of transmitting control information in a Wireless Local Area Network (WLAN) system, comprising transmitting first control information by means of cyclic shift delay diversity beam-forming and transmitting second control information. The first control information comprises information necessary for each of a plurality of target stations of the second control information to receive the second control information. The second control information beamformed and transmitted to the plurality of target stations.
Abstract:
A method of power saving in a wireless local area network is provided. The method is performed by a wireless device that acquires TXOP (transmission opportunity) from an access point (AP), and the TXOP indicates an interval of time when the AP has the right to transmit at least one data block for multi user-multiple input multiple output (MU-MIMO) transmission. The method includes receiving a power saving indicator from the AP, the power saving indicator indicating whether the AP is allowed to enter doze state during the TXOP; and entering the wireless device into the doze state until the end of the TXOP if the power saving indicator indicates an allowance of entering the doze state.