Abstract: An apparatus (UE1, UE2) comprising at least one processor, at least one memory including computer program code, and at least one communication module. The at least one memory and computer program code are configured, with the at least one processor, and the at least one communication module, to cause the apparatus (UE1, UE2) to receive (100, 206) a plurality of radio signal (s0, s2) or at least one resource conflict indicator (RCI). The at least one resource conflict indicator (RCI) indicates at least one radio resource (rr1) that has a potential risk of a resource conflict.

Abstract: An apparatus comprising at least one processor, at least one memory including computer program code, and at least one communication module. The apparatus receives a plurality of radio signals. The apparatus determines at least one communication parameter based on at least one of the radio signals. The apparatus determines at least one resource conflict indicator (RCI) based on the received radio signals and a transmission parameter. The at least RCI indicates at least one radio resource that has a potential risk of a resource conflict. The determined at least one communication parameter is mapped to the transmission parameter for the RCI. The apparatus transmits the RCI.

Abstract: A method to operate a first wireless network unit (A) is provided, wherein the method comprises: determining (102) a data entity (DE) intended to be transmitted via a physical shared radio channel (PSCH); determining (104) a plurality of segments of the determined data entity (DE); determining (106) at least one first radio resource window (rw(n?1)) of the physical shared radio channel (PSCH); monitoring (108) the at least one first radio resource window (rw(n?1)); determining (110) a plurality of candidate resources (rr12, rr22) in a second resource window (rw(n)) of the physical shared radio channel (PSCH) in dependence on monitored radio resources (rr11, rr21) of the at least one first radio resource window (rw(n?1)), wherein each candidate resource (rr12, rr22) of the plurality of candidate resources (rr12, rr22) is part of a resource chain (RC1, RC2) of the physical shared radio channel (PSCH); selecting (112) one of the plurality of candidate resources (rr12, rr22) as a transmission start resource (rr12

Abstract: A first radio terminal of a radio communications network. In one example, the first radio terminal includes an electronic processor, a communication module, and an antenna. The electronic processor is configured, together with the communication module, and the antenna, to cause the radio terminal to transmit, in a first transmission to a second radio terminal, data via a first subset of a set of SPS radio resources, reserve a second subset of the set of SPS radio resources for a subsequent data transmission, and in response to detecting a triggering event, skip the subsequent data transmission.

Abstract: The invention relates to a method for operating a first vehicle terminal (NN1; NN2, NN3; NN4) for a wireless communications network, the method comprising: determining a resource pattern within a resource pool, the resource pattern comprising a plurality of wireless resources of a data channel within the resource pool; and sending, on a control channel, an item of control information which indicates the resource pattern and a group of at least two vehicle terminals associated with the resource pattern.

Abstract: A first radio terminal of a radio communications network. In one example, the first radio terminal includes an electronic processor, a communication module, and an antenna. The electronic processor is configured, together with the communication module, and the antenna, to cause the radio terminal to transmit, in a first transmission to a second radio terminal, data via a first subset of a set of SPS radio resources, reserve a second subset of the set of SPS radio resources for a subsequent data transmission, and in response to detecting a triggering event, skip the subsequent data transmission.

Abstract: A wireless communication method for dynamically adapting resource reservation of a sidelink channel using semi-persistent scheduling. The method includes receiving, at a first item of user equipment, a first and a second item of data for transmission via a semi persistent scheduling mode, and a status indication of a shared wireless resource pool of the first item of user equipment and one or more second items of user equipment; notifying, by the first item of user equipment, an initial semi persistent scheduling reservation for the first item of data to the one or more second items of user equipment via the shared resource pool; notifying, by the first item of user equipment, one or more second items of user equipment of a reservation of a wireless resource defined in the shared wireless resource pool according to a declaration comprised in a further semi-persistent scheduling reservation of the sidelink channel.

Abstract: An apparatus comprising at least one processor, at least one memory including computer program code, and at least one communication module. The apparatus receives a plurality of radio signals. The apparatus determines at least one communication parameter based on at least one of the radio signals. The apparatus determines at least one resource conflict indicator (RCI) based on the received radio signals and a transmission parameter. The at least RCI indicates at least one radio resource that has a potential risk of a resource conflict. The determined at least one communication parameter is mapped to the transmission parameter for the RCI. The apparatus transmits the RCI.

Abstract: A first terminal of a radio communications network. The first terminal includes at least one processor, at least one memory with computer program code, and at least one communication module and at least one antenna. The computer program code is configured in such a way that, using the processor, the communication module, and the antenna, it causes the first terminal to send first messages on a first radio resource to a group of further terminals, to receive at least one response, after sending the particular first message, from at least one of the further terminals of the group, to ascertain a resource change decision as a function of the at least one response, and to send second messages as a function of the resource change decision on a second radio resource to the group of further terminals, the second radio resource being different from the first radio resource.

Abstract: A first terminal of a radio communications network. The first terminal includes at least one processor, at least one memory with computer program code, and at least one communication module and at least one antenna. The computer program code is configured in such a way that, using the processor, the communication module, and the antenna, it causes the first terminal to send first messages on a first radio resource to a group of further terminals, to receive at least one response, after sending the particular first message, from at least one of the further terminals of the group, to ascertain a resource change decision as a function of the at least one response, and to send second messages as a function of the resource change decision on a second radio resource to the group of further terminals, the second radio resource being different from the first radio resource.

Abstract: A method to operate an apparatus (UE1) comprises: receiving (102) a plurality of radio signals (s0, s2); determining (104) at least one resource conflict indicator (RCI) in dependence on the received radio signals (s0, s2), wherein the at least one resource conflict indicator (RCI) indicates at least one radio resource (rr1) that has a potential risk of a resource conflict; and transmitting (106) the resource conflict indicator (RCI).

Abstract: A first on-board terminal for radio communication in a radio network. The first on-board terminal is designed to retransmit first data via the radio channel after the expiration of a second time period, which begins after the end of the previous transmission of the first data, if the radio channel is not occupied after the expiration of a first time period.

Abstract: A road-side network node for operating in a cell-supported radio communications network is provided. The road-side network node comprises a processor, a memory, a radio module, and an antenna. The road-side network node is configured to: determine or receive a gap information indicating a transmission gap period on a sidelink radio channel; and transmit an energy signature via the sidelink radio channel within the transmission gap period.

Abstract: A first radio terminal of a radio communications network. In one example, the first radio terminal includes an electronic processor, a communication module, and an antenna. The electronic processor is configured, together with the communication module, and the antenna, to cause the radio terminal to transmit, in a first transmission to a second radio terminal, data via a first subset of a set of SPS radio resources, reserve a second subset of the set of SPS radio resources for a subsequent data transmission, and in response to detecting a triggering event, skip the subsequent data transmission.

Abstract: A method is described for the locationally selective transmission of a signal by radio. Both a transmitter and a receiver are synchronized to the same time reference. The receiver receiving and demodulating, at a time that is one of the specified times of the time reference, a signal transmitted by the transmitter, if the receiver has received the signal at a time that is one of the specified times. The method includes the transmitter determining a receive location within a receive zone to which it wishes to transmit the signal in selective fashion, a position in the receive zone being a function of a position of the transmitter and a signal runtime. The method also includes the transmitter transmitting the signal; and the receiver, which is situated inside the receive zone, receives and demodulates the signal.

Abstract: A first on-board terminal for radio communication in a radio network. The first on-board terminal is designed to retransmit first data via the radio channel after the expiration of a second time period, which begins after the end of the previous transmission of the first data, if the radio channel is not occupied after the expiration of a first time period.

Abstract: A method for V2X communication. The method includes transmitting, via at least one V2X radio channel, at least one first V2X message object; receiving, via the at least one V2X radio channel, at least one feedback associated with a reception status of the at least one first V2X message object; deciding, based on the at least one feedback, whether to transmit at least one second V2X message object; and transmitting, via the at least one V2X radio channel, the at least one second V2X message object, if the decision indicates that the at least one second V2X message object is to be transmitted.

Abstract: A method to operate a first radio terminal of a radio communications network, is provided, wherein the method comprises: determining a SPS configuration for the first radio terminal, wherein the SPS configuration indicates a set of SPS, semi-persistently scheduled, radio resources of a shared device-to-device radio channel, in particular of a sidelink channel, SL-CH, wherein the indicated SPS radio resources are intended for a transmission by the first radio terminal; transmitting, towards at least one second radio terminal, data via a first subset of the set of the SPS radio resources; selecting at least one sensing resource out of the set of SPS radio resources; sensing the at least one sensing resource; determining a contention indicator in dependence on the sensing of the at least one sensing resource; and refraining from transmitting data via a second subset of the set of SPS radio resources if the contention indicator indicates a contention situation at the at least one sensing resource.

Abstract: A method to operate a first wireless network unit (A) is provided, wherein the method comprises: determining (102) a data entity (DE) intended to be transmitted via a physical shared radio channel (PSCH); determining (104) a plurality of segments of the determined data entity (DE); determining (106) at least one first radio resource window (rw(n?1)) of the physical shared radio channel (PSCH); monitoring (108) the at least one first radio resource window (rw(n?1)); determining (110) a plurality of candidate resources (rr12, rr22) in a second resource window (rw(n)) of the physical shared radio channel (PSCH) in dependence on monitored radio resources (rr11, rr21) of the at least one first radio resource window (rw(n?1)), wherein each candidate resource (rr12, rr22) of the plurality of candidate resources (rr12, rr22) is part of a resource chain (RC1, RC2) of the physical shared radio channel (PSCH); selecting (112) one of the plurality of candidate resources (rr12, rr22) as a transmission start resource (rr12

Abstract: A first on-board terminal for radio communication in a radio network. The first on-board terminal is designed to retransmit first data via the radio channel after the expiration of a second time period, which begins after the end of the previous transmission of the first data, if the radio channel is not occupied after the expiration of a first time period.