The present application discloses a method and a device in a node for wireless communications. A first receiver receives a first signaling and a second signaling; and a first transmitter transmits a first signal in a target radio resource block, the first signal carrying a first bit block; wherein the first signaling is used to determine the first bit block, and the first signaling is used to determine a first radio resource block; the second signaling is used to determine a second radio resource block, the second radio resource block being reserved for a second bit block; the first bit block comprises at least one of first-type information bit(s) or second-type information bit(s); the second signaling comprises a first field; when the first bit block comprises the first-type information bit(s).

The present application discloses a method and a device in a node for wireless communications. A first receiver receives a first signaling and a second signaling; and a first transmitter transmits a first signal in a target radio resource block, the first signal carrying a first bit block; wherein the first signaling is used to determine the first bit block, and the first signaling is used to determine a first radio resource block; the second signaling is used to determine a second radio resource block, the second radio resource block being reserved for a second bit block; the first bit block comprises at least one of first-type information bit(s) or second-type information bit(s); the second signaling comprises a first field; when the first bit block comprises the first-type information bit(s).

A data transmission device includes a wireless communication unit that wirelessly communicates with an external communication device, a travel route information acquirer that acquires a future travel route of a moving object, a travel route, a propagation environment information acquirer that acquires propagation environment information of a radio wave propagation path used in wireless communication, a speed information acquisition unit that acquires the moving speed of a moving object, and a converter that converts a relationship between the travel route and propagation environment information into a plurality of data slots each defined by the communication speed per unit time; a transmission instructor that instructs the wireless communication unit to transmit the data allocated to the data slot.

A method to reduce a probability of occurrence of a hidden node in a data transmission process in a high-frequency system is disclosed. The method implemented by a communications apparatus includes determining at least one beam to be used for sending a resource reservation message, where the at least one beam includes a first beam, where a direction of the first beam is opposite to a direction of a second beam, and where the direction of the second beam is a potential transmission direction in which the communications apparatus sends information. The method further includes sending the resource reservation message by using the at least one beam, where the resource reservation message includes a resource reservation request message or a resource reservation response message, where the resource reservation request message is used to request to reserve a transmission resource, and where the resource reservation response message is used to determine to reserve a transmission resource.

A method to reduce a probability of occurrence of a hidden node in a data transmission process in a high-frequency system is disclosed. The method implemented by a communications apparatus includes determining at least one beam to be used for sending a resource reservation message, where the at least one beam includes a first beam, where a direction of the first beam is opposite to a direction of a second beam, and where the direction of the second beam is a potential transmission direction in which the communications apparatus sends information. The method further includes sending the resource reservation message by using the at least one beam, where the resource reservation message includes a resource reservation request message or a resource reservation response message, where the resource reservation request message is used to request to reserve a transmission resource, and where the resource reservation response message is used to determine to reserve a transmission resource.

Provided is a transmission bandwidth configuration method. The method includes: configuring a first channel bandwidth (CB) of a carrier; and in response to determining that the first CB is greater than a first preset bandwidth, configuring subcarriers in a first TBC according to a preset percentage X of the first TBC in the first CB and the first CB, so as to complete a subcarrier configuration in a transmission bandwidth configuration. The preset percentage X is within a range of [a preset lower limit value, a preset upper limit value], the preset lower limit value is greater than 90% and the preset upper limit value is less than 100%. Also provided is a transmitting node.

Provided is a transmission bandwidth configuration method. The method includes: configuring a first channel bandwidth (CB) of a carrier; and in response to determining that the first CB is greater than a first preset bandwidth, configuring subcarriers in a first TBC according to a preset percentage X of the first TBC in the first CB and the first CB, so as to complete a subcarrier configuration in a transmission bandwidth configuration. The preset percentage X is within a range of [a preset lower limit value, a preset upper limit value], the preset lower limit value is greater than 90% and the preset upper limit value is less than 100%. Also provided is a transmitting node.

Methods, systems, and devices for wireless communications are described. A first UE may transmit a sidelink request to a second UE. The sidelink request may indicate a set or a segment of the data resources. A second UE may transmit a positive sidelink response indicating that the set or the segment of resources is available for reservation, or may refrain from transmitting a positive sidelink response if the set or the segment of the data resources is unavailable for reservation. A third UE may transmit a negative sidelink response indicating that the set or the segment of the data resources is unavailable for reservation, or may refrain from transmitting a negative sidelink response if the set or the segment of the data resources is available for reservation. If the requested data resources are available, then the first UE may transmit a sidelink confirmation reserving the requested data resources.

Methods, systems, and devices for wireless communications are described. A first UE may transmit a sidelink request to a second UE. The sidelink request may indicate a set or a segment of the data resources. A second UE may transmit a positive sidelink response indicating that the set or the segment of resources is available for reservation, or may refrain from transmitting a positive sidelink response if the set or the segment of the data resources is unavailable for reservation. A third UE may transmit a negative sidelink response indicating that the set or the segment of the data resources is unavailable for reservation, or may refrain from transmitting a negative sidelink response if the set or the segment of the data resources is available for reservation. If the requested data resources are available, then the first UE may transmit a sidelink confirmation reserving the requested data resources.

A resource selection method, an apparatus, and a device, where the method includes determining, by first user equipment (UE), parameter information of a sensing window, where the parameter information includes at least one of a start time, a time span, or a quantity, sensing, by the first UE, the resource in the sensing window according to the parameter information of the sensing window, and selecting, by the first UE, a resource according to a sensing result.