Abstract:
The present invention relates to a method of performing a random access (RA) procedure by a user equipment (UE) in a wireless communication system. In particular, the method includes the steps of: triggering the RA procedure, wherein, when there is an ongoing scheduling request (SR) procedure on a first uplink (UL) bandwidth part (BWP), a second UL BWP is selected, wherein both an SR resource and PRACH resources are configured in the second UL BWP; and transmitting a RA preamble and a SR of the ongoing SR procedure on the second UL BWP.
Abstract:
In the present disclosure, a UE receives configuration information regarding a measurement gap (MG); transmits a MG skip indication associated with the MG; and transmits uplink signals during the MG.
Abstract:
The present invention relates to a method for performing a random access procedure by a user equipment in a wireless communication system. In particular, the method includes transmitting a first number of random access preambles; detecting a second number of random access responses corresponding to the first number of random access preambles; and transmitting an payload using one uplink grant for which a listen before talk (LBT) procedure is firstly successful among a second number of uplink grants included in the second number of random access responses.
Abstract:
Provided are a method of performing cell reselection and a device supporting the method. According to one embodiment of the present invention, the method includes: starting data transmission or data reception while the UE is in radio resource control (RRC) idle state or RRC inactive state; applying an offset value to a serving cell for cell reselection; performing cell reselection based on the applied offset value, during the data transmission or data reception; and stopping applying the offset value to the serving cell, when the data transmission or data reception is succeeded.
Abstract:
The present invention relates to a method for transmitting signals by a user equipment (UE) in a radio resource control (RRC) inactive state or a RRC idle state at a wireless communication system. In particular, the method includes the steps of: measuring neighboring cells; identifying one of the neighboring cells fulfilled with conditions for a cell reselection procedure based on a result of measuring; determining whether to perform the cell reselection procedure with the one of the neighboring cells by considering a timer; and transmitting an uplink data or receiving a downlink data, without performing the cell reselection procedure during the timer is running, when it is determined not to perform the cell reselection procedure.
Abstract:
The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for transmitting a power headroom reporting in wireless communication system, the method comprising: calculating multiple Power Headroom (PH) values per an active cell; selecting one PH value among the multiple PH values for setting a value of a PH field of a corresponding cell to the selected PH value; generating a Power Headroom Reporting (PHR) Medium Access Control (MAC) Control Element (CE) including the PH field set to the selected PH value; and transmitting a MAC Protocol Data Unit (PDU) including the generated PHR MAC CE to a network.
Abstract:
A method for transmitting and receiving data in a wireless communication system and an apparatus for the method are disclosed. More specifically, The present invention provides a method for transmitting downlink data in a wireless communication system can comprise mapping, by a eNB, first downlink data into a physical downlink shared channel (PDSCH) region according to a radio frame structure based on a first transmission time interval (TTI), mapping, by the eNB, second downlink data to a short PDSCH (sPDSCH) region according to a radio frame structure based on a second TTI, and transmitting, by the eNB, the first and the second downlink data.
Abstract:
Provided are a method and apparatus for requesting scheduling for an uplink data transmission in a wireless communication system. The method may include receiving, by a user equipment, an additional scheduling request (SR) resource configuration information including additional SR resource information and buffer size information configured to the additional SR resource in addition to a default SR resource from a base station, transmitting, by the user equipment, an SR through the default SR resource or the additional SR resource to the base station, receiving, by the user equipment, an uplink resource allocation information which is determined according to the resource in which the SR is transmitted from the base station, and transmitting, by the user equipment, the uplink data to the base station through a physical uplink shared channel (PUSCH) resource which is allocated by the uplink resource allocation information.
Abstract:
Provided are a method for allocating a temporary radio network temporary identifier to a terminal within a random access procedure in a wireless communication system, and an apparatus supporting the same. The method for allocating a temporary radio network temporary identifier (T-RNTI) to a user equipment (UE) within a random access procedure in a wireless communication system, includes transmitting, by the UE, a random access preamble to a base station (BS), transmitting, by the UE, a radio resource control (RRC) request message to the BS through a contention-based physical uplink shared channel (PUSCH) resource block in which uplink data can be transmitted without uplink resource allocation scheduling, and receiving, by the UE, an RRC connection setup message identified by a T-RNTI allocated to the UE in response to the RRC request message, wherein the T-RNTI is allocated on the basis of the contention-based PUSCH resource block in which the RRC request message has been transmitted.
Abstract:
A method for perform pre-processing for handover of a moving cell by a serving base station, the method comprises transmitting a handover pre-processing request message including information on a handover history of the moving cell, to at least one neighboring base station adjacent to the serving base station; receiving a pre-processing response message including at least one of a random access preamble allocated from the neighboring base station, radio resource control (RRC) configuration of the neighboring base station and system information of the neighboring base station, from the neighboring base station; and transmitting the pre-processing response message to the moving cell before handover of the moving cell is initiated.