Abstract:
A method and corresponding device for performing active scanning in a wireless local area network (LAN). The method includes: receiving, by a first station (STA), a second probe request frame from a second STA, wherein the second probe request frame is transmitted based on broadcast; and determining, by the first STA, whether to transmit a first probe request frame for an active scanning based on the second probe request frame. The first STA determines not to transmit the first probe request frame if the first STA is capable of receiving information related to an AP to be associated based on the second probe request frame.
Abstract:
Disclosed are a terminal device for controlling uplink signal transmission power, and a method therefore. The present invention relates to a method and terminal device for controlling uplink transmission power, wherein the method, in which a terminal that communicates with cells of each timing alignment (TA) group controls uplink transmission power in the event a plurality of TA groups including one or more cells exists in a wireless communication system, comprises: a step of determining the uplink transmission power for at least one channel in the event at least two channels from among a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH) including a plurality of pieces of uplink control information (UCI), a PUSCH including no UCI, a physical random access channel (PRACH), and a sounding reference signal (SRS) are simultaneously transmitted in the same subframe in each specific cell of the plurality of TA groups; and a step of transmitting said at least one channel with the determined uplink transmission power, wherein said uplink transmission power is determined in consideration of a TA group index.
Abstract:
The present invention relates to a wireless communication system and more particularly, to a method for performing connection setting for Wi-Fi direct services communication and a device therefor, the method comprising a step of performing device discovery between two devices through an NFC touch.
Abstract:
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.
Abstract:
Disclosed are a method and an apparatus for active scanning in a wireless LAN. The method for active scanning in a wireless LAN may comprise the steps of: a first station (STA) transmitting a first probe request frame to an access point (AP); and a first STA receiving a probe response frame from the AP, wherein the probe response frame is a response for the probe request frame, and the first probe request frame comprises fast initial link setup (FILS) capability information which can indicate whether the first STA supports FILS.
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 method and terminal apparatus which involve transmitting a sounding reference signal (SRS)-triggering-based SRS in a wireless communication system. The terminal apparatus of the present invention comprises a receiver which receives, from a base station, an SRS-triggering indicator for triggering an SRS transmission; and a transmitter which transmits the SRS via a preconfigured uplink subframe in accordance with the SRS-triggering indicator.
Abstract:
A method and an apparatus for accessing a channel in a wireless LAN. A method for a station (STA) accessing a channel may comprise: a step of the STA receiving an access distribution element through a passive scanning frame; the STA selecting an access random variable based on the access distribution element; a step of the STA determining a minimum value of a passive scanning-specific competition window based on the access random variable; and the STA accessing the channel based on a back off time that is determined based on the passive scanning-specific competition window.
Abstract:
A method and apparatus for transmitting a downlink signal in a wireless communication system are disclosed. An apparatus for receiving a downlink (DL) signal from a base station (BS) and transmitting the received DL signal to a user equipment (UE) in a wireless communication includes: a plurality of reception antennas configured to receive DL signals from the BS; a processor configured to map the received DL signals to at least one transmission antenna; and a plurality of transmission antennas configured to transmit the received DL signals to the UE, wherein the processor is configured to select M transmission antenna(s) from among the plurality of transmission antennas (Ntx,REP Tx antennas), and map the received L signals to the M transmission antenna(s), and the number of the transmission antennas (Ntx,REP) is higher than the number of the reception antennas (Nrx,REP), and M is the number of the transmission antennas which is used to transmit the received DL signals.
Abstract:
One embodiment of the present invention relates to a method for acquiring control information, comprising: a step of receiving a plurality of first sequential indexes associated with a resource region via which downlink control information is transmitted; a step of determining a plurality of second indexes from the plurality of first indexes; and a step of determining control channel elements in the order of the resource regions according to the plurality of second indexes, and performing blind decoding wherein the determination o the plurality of second indexes is dependent on a transmission mode and/or downlink control information.