Abstract:
A method for receiving downlink channels at a user equipment in a wireless communication system. The method according to one embodiment includes monitoring a downlink control channel in a subframe including a plurality of symbols from the base station; and decoding a downlink data channel in the subframe according to the downlink control channel. If a parameter on a starting symbol of the downlink control channel within the plurality of symbols is configured via Radio Resource Control (RRC) layer signaling, the starting symbol of the downlink control channel is determined according to the parameter, otherwise, the starting symbol of the downlink control channel is determined according to a control format indicator.
Abstract:
A method is described for transmitting a physical downlink shared channel (PDSCH) to a relay node at a base station in a multiple antenna wireless communication system. The method includes modulating a relay-node-specific physical downlink control channel (R-PDCCH) based on a relay-node-specific reference signal, and transmitting the R-PDCCH and the PDSCH to the relay node. If the R-PDCCH is modulated based on the relay-node-specific reference signal and carries a specific downlink control information, the PDSCH is encoded based on a predetermined antenna port and a predetermined scrambling identifier (SCID).
Abstract:
The present invention relates to a method and an apparatus which enable a terminal to transmit a signal for device-to-device (D2D) communication in a wireless communication system. Specifically, the present invention transmits a synchronization signal for D2D communication and a demodulation reference signal (DM-RS) for demodulation of the synchronization signal, wherein the base sequence of the demodulation reference signal is generated using a synchronization reference ID.
Abstract:
A method of operating a message exchange server related to vehicle-to-everything (V2X) message transmission and reception in a wireless communication system can include obtaining, by the message exchange server, information of an adjacent message exchange server from a lookup server; and receiving, by the message exchange server, a message published by a User Equipment (UE). Also, in response to determining, by the message exchange server, that a topic included in the message published by the UE is not included in a topic list of the message exchange server, the method can further include transmitting, by the message exchange server, a handover message to the UE.
Abstract:
According to various embodiments, disclosed are a method for transmitting a first message by a first device in a wireless communication system supporting sidelink, and a device therefor. Disclosed are the method and the device for same, the method comprising the steps of: receiving a first request message for requesting transmission of the first message on the basis of a bypass interface; transmitting a response message for acknowledging transmission of the first message; and transmitting a second message, which has been received from the network, as the first message on the basis of the bypass interface, wherein the bypass interface is an interface for transmitting the second message, which has been received through a first interface, as the first message through a second interface without involvement of an application layer of the first device, and the response message includes channel information related to the second interface.
Abstract:
Provided are a vehicle-to-everything (V2X) device and a V2X server for a multicast service. The V2X device determines a service area for a multicast service and generates a first logical channel for requesting subscription of the multicast service. The V2X device transmits, to the V2X server, a service support message including information about the service area and the first logical channel.
Abstract:
Disclosed are a method for merging and transmitting, by a network, VRU messages and an apparatus therefor. The method comprises the steps of: receiving, through an uplink, a first VRU message including information on a first VRU; and transmitting, through a downlink at a preconfigured time point, a second VRU message in which a plurality of VRU messages received from a plurality of VRUs for a preconfigured time period are merged, wherein it is determined whether to merge the first VRU message with the second VRU message according to a mobility change calculated on the basis of previous mobility information on the first VRU and mobility information obtained from the first VRU message, and, when the mobility change is greater than or equal to a preconfigured threshold, the first VRU message is transmitted through the downlink without merging the first VRU message with the second VRU message.
Abstract:
Disclosed are the method, the method comprising the steps of: receiving a VRU path map including joint information about joints where VRU paths are branched; collecting history information about previous VRU paths for the VRU device, on the basis of the joint information; and predicting the entry path on the basis of the joint information and the history information, wherein the VRU device determines a specific joint corresponding to the location of the VRU device from among the joints, obtains, from the VRU path map, a base path value that is a probability value for each of VRU paths branched from the determined specific joint, and obtains a past path value that is a probability value for each of the previous VRU paths, on the basis of the history information, and the entry path is predicted on the basis of the base path value and the past path value.
Abstract:
A device for a vehicle-to-everything (V2X) service selects a first local V2X server from multiple local V2X servers on the basis of current location. The device transmits a V2X service-related subscription request to the selected first local V2X server.
Abstract:
A server for a vehicle-to-everything (V2X) service receives, from a first V2X device, a subscription request for requesting subscription of the V2X service, and sets a subscription area for the first V2X device. The server publishes, to the first V2X device, at least one V2X message published by at least one second V2X device associated with the subscription area.