Proposed is a method and device for receiving data in a wireless LAN system. Specifically, an AP transmits a trigger frame to a first to a third station (STA) through a multi-band. The AP receives data from the first to third STAs on the basis of the trigger frame. In the multi-band, a first band to a third band are combined. The trigger frame includes a common information field and a first to a third user information field. When the first and second STAs are associated with the first band, the first user information field includes user information relating to the first and second STAs. When the second and third STAs are associated with the second band, the second user information field includes user information relating to the second and third STAs. When the third STA is associated with the third band, the third user information field includes user information relating to the third STA.

A method of transmitting a frame by a station (STA) in a wireless LAN system supporting an HE PPDU (high efficiency physical layer protocol data unit) according to an embodiment of the present invention includes: setting a first duration field included in an HE-SIG A field; and transmitting a frame including the HE-SIG A field and a MAC header, wherein the first duration field is set to indicate a TXOP (transmission opportunity) value using a smaller number of bits than a second duration field included in the MAC header, and a granularity of a time unit used for indicating the TXOP value in the first duration field is set to be different from a granularity of a time unit used in the second duration field.

Embodiments of a User Equipment (UE), generation Node-B (gNB) and methods of communication are generally described herein. The UE may receive, from a gNB, a narrowband physical downlink control channel (NPDCCH) that indicates a number of narrowband internet-of-things (NB-IoT) downlink subframes for a downlink scheduling delay of a narrowband physical downlink shared channel (NPDSCH) in one or more radio frames configured for time-division duplexing (TDD) operation. Subframes of the one or more radio frames may include uplink subframes, NB-IoT downlink subframes for downlink NB-IoT transmissions, and downlink subframes for other downlink transmissions. The UE may determine the downlink scheduling delay based on an earliest subframe for which a count of NB-IoT downlink subframes is equal to the number of NB-IoT downlink subframes indicated in the NPDCCH.

Proposed are a method and a device for receiving a PPDU in a wireless LAN system. Specifically, a reception STA receives a PPDU from a transmission STA through a broadband and decodes the PPDU. The broadband is a 320 MHz band or a 160+160 MHz band. The PPDU includes a first field and a second field. The first field includes an L-LTF. The first field is generated on the basis of a first phase rotation value. The first phase rotation value is [1 −1 −1 −1 −j j j j 1 −1 −1 −1 −j j j j]. One element of the first phase rotation value is a phase rotation value applied to each 20 MHz band of the 320 MHz band or the 160+160 MHz band.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a non-linearity model associated with one or more downlink communications. The UE may receive the one or more downlink communications based at least in part on the non-linearity model. Numerous other aspects are described.

Disclosed are a data transmission method, a terminal device and a network device. The method comprises: the terminal device determining a basic parameter set for transmitting data; the terminal device detecting, according to the basic parameter set, downlink control information DCI sent by the network device for scheduling data; the terminal device detecting, according to the basic parameter set and the detected DCI, data sent by the network device, or sending data to the network device. The data transmission method, the terminal device and the network device of the embodiments of the present invention can realize the scheduling using different DCI formats for the data transmission on the basis of different basic parameter sets, and increase the flexibility of the control signaling design.

Embodiments of this disclosure improve the reliability of blind decoding when beamforming is used by having a user equipment (UE) receive a single downlink control information (DCI) message with different transmission and/or reception parameters. In some embodiments, a UE receives more than one set of configuration parameters, where any two sets of configuration parameters out of the more than one set of configuration parameters have at least one different parameter. The UE may receive two sets of configuration parameters each having a different transmission modes, but the same search space type. Additional examples are also provided.

A method and an apparatus for transmitting and receiving a signal based on a spatial parameter in a wireless communication system are disclosed. A method of performing downlink reception by a user equipment (UE) in a wireless communication system according to an embodiment of the present disclosure may comprise: receiving, from a base station, at least one of downlink control information (DCI) or configuration information including a first spatial parameter for uplink transmission; and receiving, from the base station, a downlink channel based on a second spatial parameter based on the first spatial parameter, and based on that the downlink channel is a physical downlink control channel (PDCCH), the second spatial parameter based on the first spatial parameter may be applied for at least one specific CORESET among at least one CORESET configured for the UE.

Aspects are provided which allow a first device to secure transmission of polar encoded control information by encoding at least a portion of frozen bits and/or information bits with a shared key with a second device before these bits are encoded by a polar encoder. The first device determines whether to encode at least one of a plurality of frozen bits or a plurality of information bits using the shared key. Based on the determination, the first device encodes the frozen bits and/or the information bits, and sends the encoded frozen bits and/or the encoded information bits to the second device. Since the receiving device has the shared key, the receiving device may successfully decode the control information, while an eavesdropper who receives the encoded bits may fail to decode the control information due to lack of knowledge of the shared key.

In the present specification, a user equipment may: receive RRC configuration including first configuration information relating to a first DCI format and second configuration information relating to a second DCI format; receive a configured grant configuration including a repetition scheme and resource allocation information; determine resource allocation of a configured grant on the basis of i) configuration information, which includes the same repetition scheme as the repetition scheme in the configured grant configuration, among the first configuration information and the second configuration information, and ii) the resource allocation information; and perform PUSCH transmission on the basis of the resource allocation. Each of the first configuration information and the second configuration information may include a TDRA table.