DEVICE AND METHOD FOR PERFORMING CHANNEL SELECTION IN WIRELESS AV SYSTEM

    公开(公告)号:US20220255601A1

    公开(公告)日:2022-08-11

    申请号:US17597595

    申请日:2019-07-16

    Abstract: The present invention relates to a device and a method for performing channel selection in a wireless AV system. Such present specification discloses a wireless data transmission device for performing channel selection, the device comprising: a communication unit for performing the steps of selecting an initial channel in a non-connection state on the basis of first channel monitoring, transmitting a periodic beacon onto the initial channel in a standby mode after switching to a connection state, and selecting a new channel in the standby mode on the basis of second channel monitoring in an interval in which beacon transmission does not occur; and a processor connected to the communication unit so as to control the operation of the communication unit. Fast and economic channel selection appropriate for the wireless AV system is possible.

    METHOD AND DEVICE FOR RECEIVING EHT PPDU ON BASIS OF TONE PLAN IN WIRELESS LAN SYSTEM

    公开(公告)号:US20220247544A1

    公开(公告)日:2022-08-04

    申请号:US17610078

    申请日:2020-05-18

    Abstract: Proposed is a method and device for receiving an EHT PPDU on the basis of a tone plan in a wireless LAN system. Specifically, a reception STA receives an EHT PPDU from a transmission STA via a 320 MHz band. The reception STA decodes the EHT PPDU. The EHT PPDU includes a control field and a data field. The control field includes information on a tone plan. The information on the tone plan includes allocation information indicating that a tone plan for the 320 MHz band is configured by four iterations of a tone plan for an 80 MHz band, which is defined in an 802.11ax wireless LAN system. The data field is received via an RU configured based on the allocation information.

    METHOD AND APPARATUS FOR RECEIVING MU PPDU IN WIRELESS LAN SYSTEM

    公开(公告)号:US20220239451A1

    公开(公告)日:2022-07-28

    申请号:US17610587

    申请日:2020-05-19

    Abstract: Proposed are a method and an apparatus for receiving an MU PPDU in a wireless LAN system. Specifically, a receiving STA receives an MU PPDU from a transmitting STA. The receiving STA decodes the MU PPDU. The MU PPDU includes an LSIG field, an RL-SIG field, an HE-SIG field, and an EHT-SIG field. A first reserved bit of the L-SIG field includes information indicating that a first band in which the MU PPDU is transmitted is greater than 160 MHz. A second reserved bit of the HE-SIG field includes information relating to a second band in which the EHT-SIG field is transmitted or the size of the first band. The receiving STA includes an HE STA and an EHT STA.

    DATA TRANSMISSION DEVICE AND RECEPTION DEVICE IN WIRELESS AV SYSTEM

    公开(公告)号:US20220191560A1

    公开(公告)日:2022-06-16

    申请号:US17595058

    申请日:2019-06-05

    Abstract: The present invention relates to a data transmission device and reception device in a wireless AV system. Disclosed in the present specification is a wireless data transmission device comprising: a processor for generating a compressed bitstream by encoding media data; and a communication unit for segmenting the compressed bitstream, mapping the segmentation results to MSDUs, generating an MPDU frame sequentially including a MAC header, a frame body, and an FCS associated with the MAC header in order to transmit the MSDUs, generating a PPDU frame sequentially, which includes a preamble to which at least a portion of the MAC header is mapped, at least one PPDU to which the frame body and the FCS are mapped, and a TRN field, and transmitting the PPDU frame through a wireless channel. A data transmission rate can be improved through a reduction in overhead information.

    METHOD FOR TRANSMITTING AND RECEIVING SIGNAL IN WIRELESS LAN SYSTEM AND APPARATUS FOR SAID METHOD

    公开(公告)号:US20210344539A1

    公开(公告)日:2021-11-04

    申请号:US17362777

    申请日:2021-06-29

    Abstract: Disclosed are a method for a station for transmitting and receiving a signal in a wireless local area network (WLAN) system, and an apparatus for the method. More specifically, disclosed are a method for transmitting and receiving a signal and an apparatus for the method, the method, when a station transmits and receives a signal by means of a channel in which three channels have been bonded, generating an enhanced directional multi gigabit (EDMG) short training field (STF) for an orthogonal frequency division multiplexing (OFDM) packet, and transmitting and receiving a signal comprising the generated EDMG STF field.

    METHOD FOR SUPPORTING TDD SCHEDULING IN WIRELESS LAN SYSTEM AND WIRELESS TERMINAL USING SAME

    公开(公告)号:US20200336279A1

    公开(公告)日:2020-10-22

    申请号:US16959107

    申请日:2018-12-27

    Abstract: A method for supporting TDD in a wireless LAN system of the present specification comprises the steps of: transmitting, by a first wireless terminal, a first frame including a first information element defining a structure of a TDD service period (SP) for TDD channel access, wherein the structure of the TDD SP includes a plurality of consecutive and adjacent TDD intervals, and each of the plurality of TDD intervals includes at least one TDD slot; and transmitting, by the first wireless terminal, a second frame including a second information element defining a schedule for TDD channel access of a second wireless terminal within the TDD SP, to the second wireless terminal, wherein the second information element includes: first information defining an operation type of each of a plurality of TDD slots included in at least one TDD interval for the second wireless terminal within the TDD SP; and second information associated with a duration to which the second information element is applied, and the plurality of TDD slots defined by the first information are repeated during the duration.

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