A transmitting method includes: configuring a frame using a plurality of orthogonal frequency-division multiplexing (OFDM) symbols, by allocating a plurality of transmission data to a plurality of areas; and transmitting the frame. The plurality of areas are each identified by at least one time resource among resources and at least one frequency resource among frequency resources. The frame includes a first period in which a preamble is transmitted, and a second period in which the plurality of transmission data are transmitted by at least one of time division and frequency division. The second period includes a first area, and the first area includes a data symbol generated from first transmission data, a data symbol generated from second transmission data and subsequent to the data symbol generated from the first transmission data, and a dummy symbol subsequent to the data symbol generated from the second transmission data.

A method and apparatus provide a physical uplink channel in resource blocks. Scheduling information can be received. The scheduling information can be to transmit a first physical uplink channel within a slot. The slot can include a plurality of symbols. The slot can include the first physical uplink channel and a second physical uplink channel. The first physical uplink channel can be shorter in duration than the second physical uplink channel. One or more allocated resource blocks for the first physical uplink channel can be determined based on a sub-band group and one or more resource block groups within the sub-band group. The sub-band group can include one or more sub-bands. Each sub-band can include one or more resource block groups. Each resource block group can include one or more resource blocks. A resource block can include one or more contiguous resource elements in the frequency domain. The first physical uplink channel can be transmitted in the determined one or more allocated resource blocks in the slot.

A channel access process method in a wireless local area network is provided. The method includes: generating, by a station, a backoff counter value; then performing, by the station, a backoff operation after receiving a first trigger frame, where the backoff operation includes: deducting, from the backoff counter value, a quantity N of subchannels for random access, to obtain a new backoff counter value; and when the new backoff counter value is 0 or a negative number, randomly selecting, by the station, one subchannel from the subchannels for random access, and then accessing the subchannel to send an uplink frame. The present application further provides a corresponding channel access apparatus. Applying the method and the apparatus of the embodiments of the present application improves system access efficiency and avoids a waste of system resources.

Embodiments of this application provide a signal sending method, including: determining a first subcarrier, wherein an offset is between the first subcarrier and a center subcarrier of target resource blocks in a target bandwidth, and the offset is related to a subcarrier spacing; and determining a signal, wherein a location of the first subcarrier is the same as a carrier frequency location of the signal.

A transmitting method includes: configuring a frame using a plurality of orthogonal frequency-division multiplexing (OFDM) symbols, by allocating time resources and frequency resources to a plurality of transmission data; and transmitting the frame, wherein the frame includes a first period in which a preamble which includes information on a frame configuration of the frame is transmitted, and a second period in which the plurality of transmission data are transmitted by at least one of time division and frequency division, and among the plurality of OFDM symbols, OFDM symbols included in the second period include pilot symbols arranged along a time axis with a predetermined spacing therebetween, and a predetermined number of data symbols.

Scheduling information for transmitting a first physical uplink channel within a slot can be transmitted, the slot including a plurality of symbols and including the first physical uplink channel and a second physical uplink channel, and the first physical uplink channel is shorter in duration than the second physical uplink channel. One or more allocated RBs can be determined for the first physical uplink channel based on an indicated sub-band group and one or more indicated RBGs within the indicated sub-band group, the sub-band group including one or more sub-bands, each sub-band comprising one or more RBGs, each RBG comprising one or more RBs, and an RB including one or more contiguous REs. The first physical uplink channel can be transmitted in the one or more allocated RBs in the slot. The scheduling information can indicate the sub-band group and the one or more resource block groups within the sub-band group.

Provided are a frame configuring unit configured to configure a frame using a plurality of orthogonal frequency-division multiplexing (OFDM) symbols, by allocating time resources and frequency resources to a plurality of transmission data, and a transmitter which transmits the frame. The frame includes a first period in which a preamble which includes information on a frame configuration of the frame is transmitted, a second period in which a plurality of transmission data are transmitted by time division, a third period in which a plurality of transmission data are transmitted by frequency division, and a fourth period in which a plurality of transmission data are transmitted by time division and frequency division.

In a wireless communication network, pilot signals are transmitted over a wireless communication channel by determining a maximum delay spread for a transmission channel, determining a maximum Doppler frequency spread for the transmission channel, and allocating a set of transmission resources in a time-frequency domain to a number of pilot signals based on the maximum delay spread and the maximum Doppler frequency spread.

A transmitting method includes: configuring a frame using a plurality of orthogonal frequency-division multiplexing (OFDM) symbols, by allocating a plurality of transmission data to a plurality of areas; and transmitting the frame. The plurality of areas are each identified by at least one time resource among resources and at least one frequency resource among frequency resources. The frame includes a first period in which a preamble is transmitted, and a second period in which the plurality of transmission data are transmitted by at least one of time division and frequency division. The second period includes a first area, and the first area includes a data symbol generated from first transmission data, a data symbol generated from second transmission data and subsequent to the data symbol generated from the first transmission data, and a dummy symbol subsequent to the data symbol generated from the second transmission data.

A method for receiving a broadcasting signal in a wireless communication system. The method comprises receiving, from a base station (BS), a physical broadcasting channel (PBCH) content over a PBCH, and determining the PBCH content including a payload, wherein the payload includes uncommon information within a transmission time interval (TTI) of the PBCH that comprises at least a portion of a 10-bit system frame number (SFN), a half frame index within a radio frame, and at least part of a synchronization signal (SS) block time index.