Abstract:
Provided are a method for mmWAVE vehicle-to-everything (V2X) communication in a multiple user equipment (UE) communication environment, and a device therefor. During a data period, on the basis of having data to be transmitted to a receiving user equipment (UE), a transmitting UE i) transmits, to the receiving UE, a first physical sidelink control channel (PSCCH) for triggering transmission of a beam management reference signal (BRS), ii) transmits the BRS to the receiving UE, iii) transmits, to the receiving UE, a second PSCCH for scheduling the data, and iv) transmits the data to the receiving UE. The transmitting UE receives a measurement result of the BRS from the receiving UE, and adjusts a transmission beam on the basis of the measurement result of the BRS.
Abstract:
Provided are a method for operating a device in a wireless communication system, and a device using the method. The method comprises: measuring a plurality of reference beams; selecting at least one beam from among the plurality of reference beams; and communicating with a base station using the at least one selected beam, wherein the plurality of reference beams are beams transmitted according to a first scheme or a second scheme. In the first scheme, N (N is a natural number greater than or equal to two) reference beams are transmitted at a first transmission time, and an offset is applied to the N reference beams at a second transmission time. In the second scheme, 2N reference beams are transmitted, wherein a second frequency interval between adjacent beams of the 2N reference beams is half a first frequency interval between adjacent beams of the N reference beams.
Abstract:
Disclosed in various embodiments are: a method by which user equipment (UE) performs beam sweeping by using a plurality of transmission beams in a wireless communication system for supporting a sidelink; and a device therefor. Particularly, disclosed in various embodiments are a method and a device therefor, the method comprising the steps of: receiving configuration information related to the beam sweeping; grouping the plurality of transmission beams into a plurality of groups on the basis of the number of reference beams included in the configuration information; and performing beam sweeping according to a transmission order determined for the plurality of groups, wherein the transmission order is determined on the basis of a group index for the plurality of groups and the number of repetitions in which the beam sweeping is repeatedly performed.
Abstract:
Disclosed, according to various embodiments, are a method for assigning a beam management ID based on a plurality of zones in which a user equipment (UE) is included in a pre-set region, in a wireless communication system supporting a sidelink, and an apparatus therefor. Disclosed are the method for assigning a beam management ID based on a plurality of zones in which a user equipment (UE) is included in a pre-set region, and the apparatus therefor, the method comprising the steps of: transmitting, to a base station, an assignment request signal requesting assignment of a beam obtainment ID related to any one zone among the plurality of zones; and obtaining, from the base station, information about a first zone specified among the plurality of zones, on the basis of the assignment request signal, and information about a first beam obtainment ID for identifying a beam management signal in the first zone, wherein the first zone is one zone specified among the plurality of zones, on the basis of a moving direction of the UE.
Abstract:
Disclosed are a method by which a first user equipment (UE) changes a reception timing in a wireless communication system supporting side links, and an apparatus therefor, according to various embodiments. The method comprises the steps of: forming a first side link with a second UE in a first frequency band; estimating a second reception timing related to a second side link formed in a second frequency band, which is adjacent to the first frequency band, on the basis of a synchronization signal for a third UE using the second frequency band, and timing advance (TA) information; and determining whether to change a reception timing of a side link signal for the first side link on the basis of a difference value between a first reception timing related to the first side link and the second reception timing.
Abstract:
The present invention discloses a method and an apparatus for a terminal receiving control information, which includes a modified physical hybrid ARQ indicator channel (PHICH) configuration, through a downlink shared channel (DL-SCH), in a heterogeneous network system comprising a macro cell and a femto cell. The method for the terminal receiving the control information in the heterogeneous network system comprising the macro cell and the femto cell, according to one embodiment of the present invention, comprises the steps of: the terminal accessing the macro cell undergoing a handover to the femto cell; and receiving PHICH reconfiguration information from the femto cell through the downlink shared channel (DL-SCH), when the configuration of the physical hybrid ARQ indicator channel (PHICH) used by the terminal which has undergone the handover is modified.
Abstract:
In order to achieve the above purpose, a disclosure of the present specification provides a method for communicating, by a first transmission terminal, with a first reception terminal. The method may comprise the steps of: receiving, by the first transmission terminal, a measurement report from the first reception terminal, wherein the measurement report includes a result of measuring, by the first reception terminal, a first signal strength from the first transmission terminal and a second signal strength from a second transmission terminal; on the basis of a difference between the first signal strength and the second signal strength, determining whether or not to change and assign a resource to be used for communication with the first reception terminal; and communicating with the first reception terminal by assigning the resource for communication with the first reception terminal.
Abstract:
Various embodiments provide a method for performing beam sweeping by a user equipment (UE) in a wireless communication system supporting a sidelink, and a device therefor. Disclosed are a method for performing beam sweeping and a device therefor, the method comprising the steps of: forming a first group for performing the beam sweeping; receiving group information related to the first group; and performing beam sweeping on the basis of the group information, wherein the group information includes area allocation information for a plurality of areas divided on the basis of the number of a plurality of beams that can be formed by UEs included in the first group, and the beam sweeping is performed only within a first area, which has been pre-configured in response to the UEs, from among the plurality of areas.