The present disclosure relates to a method and device for providing a V2X service in a next generation radio access technology (new RAT). The present embodiments provide a method for performing sidelink communication by a terminal and a device therefor, the method comprising the steps of: receiving sidelink synchronization block (SSB) configuration information including synchronization information for sidelink communication; monitoring a SSB monitoring slot configured on the basis of the SSB configuration information; and receiving a SSB in the SSB monitoring slot, wherein the SSB comprises a sidelink primary synchronization signal (S-PSS), a sidelink secondary synchronization signal (S-SSS), and a physical sidelink broadcast channel (PSBCH), and the S-PSS, the S-SSS, and the PSBCH are allocated to N consecutive symbols in the SSB monitoring slot.

The present disclosure relates to a method and device for providing a V2X service in a next generation radio access technology (new RAT). The present embodiments provide a method for performing sidelink communication by a terminal and a device therefor, the method comprising the steps of: receiving sidelink synchronization block (SSB) configuration information including synchronization information for sidelink communication; monitoring a SSB monitoring slot configured on the basis of the SSB configuration information; and receiving a SSB in the SSB monitoring slot, wherein the SSB comprises a sidelink primary synchronization signal (S-PSS), a sidelink secondary synchronization signal (S-SSS), and a physical sidelink broadcast channel (PSBCH), and the S-PSS, the S-SSS, and the PSBCH are allocated to N consecutive symbols in the SSB monitoring slot.

Radio Frequency (RF) systems configured to implement full-duplex wireless data transfer for rotary joints are disclosed. An example RF system includes a 60 GHz short distance communication link implemented using elliptically (e.g., circularly) polarized antennas. Such a system may provide a mm-wave, high-speed, wideband wireless communication link in a manner that is associated with simpler design and operation, mechanical integrity, and reduced power consumption, compared to alternative solutions.

Radio Frequency (RF) systems configured to implement full-duplex wireless data transfer for rotary joints are disclosed. An example RF system includes a 60 GHz short distance communication link implemented using elliptically (e.g., circularly) polarized antennas. Such a system may provide a mm-wave, high-speed, wideband wireless communication link in a manner that is associated with simpler design and operation, mechanical integrity, and reduced power consumption, compared to alternative solutions.

In one embodiment, a rendezvous request message is generated (e.g., by a sender) that specifies a channel C and a rendezvous time T for which a distributed message is to be transmitted in a frequency-hopping computer network. The rendezvous request message is then transmitted on one or more channels used in the computer network based on reaching a plurality of intended recipients of the distributed message with the rendezvous request message prior to rendezvous time T. Accordingly, the distributed message is then transmitted on channel C at rendezvous time T. In another embodiment, a device receives a rendezvous request message, and in response to determining to honor the rendezvous request message, listens for the distributed message on channel C at rendezvous time T.

In one embodiment, a rendezvous request message is generated (e.g., by a sender) that specifies a channel C and a rendezvous time T for which a distributed message is to be transmitted in a frequency-hopping computer network. The rendezvous request message is then transmitted on one or more channels used in the computer network based on reaching a plurality of intended recipients of the distributed message with the rendezvous request message prior to rendezvous time T. Accordingly, the distributed message is then transmitted on channel C at rendezvous time T. In another embodiment, a device receives a rendezvous request message, and in response to determining to honor the rendezvous request message, listens for the distributed message on channel C at rendezvous time T.

A base station 100 in a radio transmission system that performs multicast/broadcast transmission comprises a multiplexing unit 110 configured to multiplex a plurality of types of transmission data transmitted in schemes different in error tolerance; and a transmitter 120 configured to transmit multiplexed data obtained by the multiplexing unit 110, by multicast/broadcast. The plurality of types of transmission data includes basic transmission data transmitted, by the transmitter, in a scheme having a first error tolerance and additional transmission data transmitted, by the transmitter, in a scheme having a second error tolerance lower than the first error tolerance. The additional transmission data is utilized in a terminal 200 by being combined with the basic transmission data.

A base station 100 in a radio transmission system that performs multicast/broadcast transmission comprises a multiplexing unit 110 configured to multiplex a plurality of types of transmission data transmitted in schemes different in error tolerance; and a transmitter 120 configured to transmit multiplexed data obtained by the multiplexing unit 110, by multicast/broadcast. The plurality of types of transmission data includes basic transmission data transmitted, by the transmitter, in a scheme having a first error tolerance and additional transmission data transmitted, by the transmitter, in a scheme having a second error tolerance lower than the first error tolerance. The additional transmission data is utilized in a terminal 200 by being combined with the basic transmission data.

A node in a wireless communication network uses a modified data-to-subcarrier mapping on at least a selective basis, wherein the modified mapping effectively extends the cyclic prefix (CP) of a transmission targeted to a given receiver without extending the CP of the Orthogonal Frequency Division Multiplex (OFDM) symbol in which the transmission is conveyed. This approach allows, for example, the node to use a first or normal data-to-subcarrier mapping for transmissions that are targeted to receivers that do not need an effective increase of the CP length, while using the modified mapping for those receivers that need a longer effective CP length, e.g., because of receiver type or channel conditions.

A transmission method is provided for a communication system in which communications using a plurality of communication methods having different transmission parameters are performed at the same frequency (in frequency bands that at least partially overlap with each other). The transmission method includes: generating a first symbol group that includes a control symbol for causing a communication partner apparatus to recognize that communication using a first communication method is to be performed and a second symbol group that includes a data symbol for the first communication method; transmitting the first symbol group at a first transmit power; and transmitting the second symbol group at a second transmit power that is smaller than the first transmit power.