Abstract:
A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for receiving broadcast signals, the apparatus comprises a receiver to receive the broadcast signals, a demodulator to demodulate the received broadcast signals by an OFDM (Orthogonal Frequency Division Multiplex) scheme, a frame parser to parse a signal frame from the demodulated broadcast signals, wherein the signal frame includes at least one service data, a time deinterleaver to time deinterleave each the service data, wherein the time deinterleaving is performed depending on a number of physical paths for each the service data, a damapper to demap the time deinterleaved data and a decoder to decode the demapped service data.
Abstract:
As an aspect of the present invention, an embodiment of the invention provides a method of transmitting broadcast data, the method comprising: encoding transmission units for forward error correction, wherein the transmission units carry the broadcast data which carry a service or service component; mapping the encoded transmission units on constellations; MIMO encoding the mapped transmission units; time-interleaving the MIMO encoded transmission units; building signal frames including the time-interleaved transmission units; modulating the signal frames by Orthogonal Frequency Division Multiplexing, OFDM scheme; and transmitting the modulated signal frames, wherein the transmitted signal frames include preambles, the preambles having physical signaling data for the transmission units.
Abstract:
Proposed is an operation method of a first device (100) in a wireless communication system. The method may comprise the steps of: receiving sidelink (SL) data related to a first SL service from a second device (200) at a first time point within an active time of a second SL discontinuous reception (DRX) configuration related to a second SL service; and starting a first timer of a first SL DRX configuration related to the first SL service on the basis of reception of the SL data.
Abstract:
Provided is a method for a user device in a wireless communication system according to an aspect of the present disclosure in which: allocation information relating to a plurality of bandwidth parts (BWPs) is received, wherein the plurality of BWPs comprise a first BWP and a plurality of second BWPs comprised in the first BWP; a sidelink signal is transmitted on the first BWP on the basis of the activation of the first BWP; and the sidelink signal is transmitted on at least one second BWP on the basis of the activation of the at least one second BWP among the plurality of second BWPs. The allocation information comprises: the start point of the first BWP and the plurality of second BWPs; the size of the first BWP and the plurality of second BWPs; and the gap among the plurality of second BWPs. Each of the plurality of second BWPs is allocated within the first BWP from the start point in the gap unit on a frequency domain.
Abstract:
Provided are a method for performing wireless communication by a first device, and an apparatus for supporting same. The method may comprise: starting a timer for an active time; receiving, from a second device through a physical sidelink control channel (PSCCH) based on a first sidelink (SL) resource, a first sidelink control information (SCI) including information related to a time domain of a second SL resource and information related to a frequency domain of the second SL resource; receiving, from the second device through a physical sidelink shared channel (PSSCH) related to the PSCCH based on the first SL resource, a second SCI and data; determining a value of a SL discontinuous reception (DRX) hybrid automatic repeat request (HARQ) round trip time (RTT) timer, based on a time interval between the first SL resource and the second SL resource; and starting the SL DRX HARQ RTT timer.
Abstract:
According to an aspect of the present disclosure, a method for transmitting a sidelink signal by a user equipment in a wireless communication system comprises: mapping a first complex-valued modulation symbol, which is associated with a sidelink control signal, to a control resource included in a sidelink resource, mapping at least one second complex-valued modulation symbol, which is associated with a sidelink data signal, to a data resource included in the sidelink source, and mapping a pre-configured value to a plurality of subcarriers included in the sidelink resource; generating the sidelink signal by modulating the at least one first complex-valued modulation symbol, the at least one second complex-valued modulation symbol, and the pre-configured value via orthogonal frequency division multiplexing (OFDM), wherein the sidelink signal comprises the sidelink control signal and the sidelink data signal; and transmitting the sidelink signal, wherein the plurality of subcarriers comprise a subcarrier having an intermediate frequency index in the sidelink resource, and power allocated to each of the plurality of subcarriers is one of values included within a preset range.
Abstract:
Provided are a method for performing wireless communication by a first device, and an apparatus for supporting same. The method may comprise: establishing a radio resource control (RRC) connection with a first base station; establishing a PC5 connection with a second device; receiving an RRC reconfiguration message for handover from the first base station; establishing an RRC connection with a second base station based on the RRC reconfiguration message; and based on (i) the first device which is a relay device relaying communication between the second device and the first base station, and (ii) the first device establishing the RRC connection with the second base station, transmitting information regarding relay reselection to the second device.
Abstract:
One embodiment is a sidelink discovery-related UE operation method in a wireless communication system, the operation method comprising the steps in which: the UE generates a discovery message; and the UE transmits the discovery message, wherein the discovery message is delivered to a Medium Access Control (MAC) layer through a logical channel (LCH), and the LCH has a fixed Logical Channel Identity (LCID) and a fixed priority for the discovery.
Abstract:
Disclosed is a method for operating a first device (100) in a wireless communication system. The method may comprise the steps in which: resource selection for a resource included in an active time of a sidelink (SL) discontinuous reception (DRX) configuration is performed on the basis of a second device (200) performing SL communication on the basis of the SL DRX configuration; and information related to the resource selected on the basis of the resource selection is transmitted to the second device (200).
Abstract:
An embodiment proposes a method for performing wireless communication by a first device. The method may comprise a step of receiving information related to a configured grant (CG) from a base station, the information related to the CG including information related to a hybrid automatic repeat request (HARQ) process ID for the CG, and period information of a resource related to the CG, and transmitting a first transport block to a second device at a first period on the basis of the period information and a first HARQ process ID. For example, on the basis that transmission of the first transport block fails, and the first HARQ process ID and a second HARQ process ID are the same, a discontinuous reception (DRX) timer related to the first transport block may be stopped at a second period related to the second HARQ process ID. For example, DRX related to the first transport block may include DRX between the first device and the base station and DRX between the first device and the second device.