A main body device includes a first communicator (an RF communicator) for transmitting and receiving a signal in a first communication scheme, a second communicator (an IR communicator) for receiving a signal in a second communication scheme, and a controller that executes a process in accordance with an operation signal transmitted from an operation device and received via the first communicator or the second communicator. The controller, by communicating with a communication device via the first communicator, determines whether the controller can determine the timing of transmitting or receiving a signal to or from the communication device via the first communicator. If the controller determines that the controller cannot determine such a timing, the controller executes a switching process that causes the operation device to transmit an operation signal in the second communication scheme.

A main body device includes a first communicator (an RF communicator) for transmitting and receiving a signal in a first communication scheme, a second communicator (an IR communicator) for receiving a signal in a second communication scheme, and a controller that executes a process in accordance with an operation signal transmitted from an operation device and received via the first communicator or the second communicator. The controller, by communicating with a communication device via the first communicator, determines whether the controller can determine the timing of transmitting or receiving a signal to or from the communication device via the first communicator. If the controller determines that the controller cannot determine such a timing, the controller executes a switching process that causes the operation device to transmit an operation signal in the second communication scheme.

According to various embodiments of the present disclosure, an electronic device comprises: a communication circuit, and a processor operably connected to the communication circuit, wherein the processor is configured to: receive signals for at least two channels during a designated search time, identify whether a frame is a designated frame based on information included in at least some of the signals, and store information about an access point (AP) based on the signal identified as the designated frame.

According to various embodiments of the present disclosure, an electronic device comprises: a communication circuit, and a processor operably connected to the communication circuit, wherein the processor is configured to: receive signals for at least two channels during a designated search time, identify whether a frame is a designated frame based on information included in at least some of the signals, and store information about an access point (AP) based on the signal identified as the designated frame.

Systems and methods are provided for synchronizing uplink (UL) and downlink (DL) traffic. In particular, frames associated with Quality of Service (QoS}-sensitive traffic flows to be transmitted in a first direction are prioritized commensurate with frames to be transmitted in a second direction, different/opposite to that of the first direction. For example, UL traffic flows can be prioritized based on DL traffic flows, where the traffic flows belong to the same application flow, and vice versa, where DL traffic flows can be prioritized based on UL traffic flows for the same application flow. In this way, end-to-end QoS can be achieved.

Systems and methods are provided for synchronizing uplink (UL) and downlink (DL) traffic. In particular, frames associated with Quality of Service (QoS}-sensitive traffic flows to be transmitted in a first direction are prioritized commensurate with frames to be transmitted in a second direction, different/opposite to that of the first direction. For example, UL traffic flows can be prioritized based on DL traffic flows, where the traffic flows belong to the same application flow, and vice versa, where DL traffic flows can be prioritized based on UL traffic flows for the same application flow. In this way, end-to-end QoS can be achieved.

Access to a wireless medium is made more flexible by combining the distributed access and central controlled access. A wireless device may be allowed to perform both orthogonal frequency-division multiple access (OFDMA) and enhanced distributed channel access (EDCA) channel access mechanisms at same time and start the channel access via a mechanism that allows a faster access to the channel. Depending on channel acquisition, the wireless device can use a multi-user format or a single-user format to transmit uplink anPLCP protocol data unit (PPDU).

Access to a wireless medium is made more flexible by combining the distributed access and central controlled access. A wireless device may be allowed to perform both orthogonal frequency-division multiple access (OFDMA) and enhanced distributed channel access (EDCA) channel access mechanisms at same time and start the channel access via a mechanism that allows a faster access to the channel. Depending on channel acquisition, the wireless device can use a multi-user format or a single-user format to transmit uplink anPLCP protocol data unit (PPDU).

In an embodiment of the present invention, a method for indicating, by an access point (AP) associated with a first basic service set (BSS), spatial reuse (SR) in a wireless LAN (WLAN) system includes transmitting a trigger frame which requests uplink multi-user (UL MU) transmission of a plurality of stations (STAs) and receiving an UL MU physical protocol data unit (PPDU) generated based on the trigger frame from the plurality of STAs. The trigger frame may include SR indication information for indicating the SR of an overlapping BSS (OBSS) STA. The first high efficiency (HE)-signal (SIG) A field of the UL MU PPDU may include SR support information generated based on the SR indication information.

In an embodiment of the present invention, a method for indicating, by an access point (AP) associated with a first basic service set (BSS), spatial reuse (SR) in a wireless LAN (WLAN) system includes transmitting a trigger frame which requests uplink multi-user (UL MU) transmission of a plurality of stations (STAs) and receiving an UL MU physical protocol data unit (PPDU) generated based on the trigger frame from the plurality of STAs. The trigger frame may include SR indication information for indicating the SR of an overlapping BSS (OBSS) STA. The first high efficiency (HE)-signal (SIG) A field of the UL MU PPDU may include SR support information generated based on the SR indication information.