Abstract:
A method and apparatus for transmitting data in a wireless communication system is provided. A user equipment (UE) transmits the data in a first cell during a first random access procedure, i.e. early data transmisison. The UE detects that transmission of the data in the first cell during the first random access procedure has failed, and prioritizes a second cell based on candidate cell information. After selecting the second cell, the UE transmits a failed part of the data in the second cell during a second random access procedure.
Abstract:
The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for determining number of retransmissions of sidelink data in wireless communication system, the method comprising: determining number of retransmissions of sidelink data when the sidelink data is available for transmission; transmitting the sidelink data via direct interface between UEs; and retransmitting the sidelink data as many as the determined number of retransmissions.
Abstract:
Method and apparatus for a user equipment (UE) supporting dual connectivity (DC) with a master node and a secondary node are disclosed. According to these, the UE receives first configuration information from the master node and second configuration information from the secondary node. The UE applies the first configuration information first. And, the UE transmits a new configuration request message to the secondary node, if the UE cannot apply the second configuration information after applying the first configuration information.
Abstract:
A method for discarding at least one packet by a user equipment (UE) in a wireless communication system is disclosed. The method includes steps of storing the at least one packet received from an upper layer in a buffer; determining whether or not a number of packets in the buffer is equal to or greater than a threshold value; and discarding the at least one packet from the buffer when the number of packets in the buffer is equal to or greater than the threshold value.
Abstract:
A method for communicating with a network at a user equipment (UE) in a wireless communication system is disclosed. The method includes steps of suspending a connection with the network; selecting one of a first connection procedure or a second connection procedure based on a cause value of a connection provided from a higher layer; and performing the selected connection procedure, wherein the cause value of the connection is determined according to a type of data to be transmitted.
Abstract:
A method and apparatus for steering a traffic in a wireless communication system is provided. A user equipment (UE) receives information on traffic in application level from a network, and steers the traffic from a first link to a second link according to the received information. The first link may be an uplink and a second link may be a sidelink, or vice versa. Or, the first link may be a first sidelink and a second link may be a second sidelink. Or, the first link may be a 3rd generation partnership project (3GPP) access network and a second link may be a non-3GPP access network.
Abstract:
A method and apparatus for controlling a backoff procedure for coverage enhancement (CE) in a wireless communication system is provided. A user equipment (UE) performs a random access procedure in a first CE level, determines to select a random access resource associated with a second CE level, sets a backoff parameter to zero for the second CE level, and performs the random access procedure in the second CE level.
Abstract:
A method for in a wireless communication system is disclosed. The method includes steps of receiving control information indicating a scheme for updating the system information; and updating the system information based on the control information, wherein the scheme for updating the system information comprises an immediate update scheme or a modification period based update scheme.
Abstract:
The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for disconnecting a device to device (D2D) link connection in a wireless communication system. According to an aspect of the present invention, the method comprising: establishing a radio resource control (RRC) connection with a cell; transmitting, to the cell connected with the remote UE, a reporting message on the D2D link connection; if the cell connected with the remote UE and a cell connected with the relay UE are different, receiving, from the relay UE, a first request message for disconnecting the D2D link connection with the relay UE in response to the reporting message; and disconnecting the D2D link connection according to the first request message.
Abstract:
A method for changing a coverage enhancement (CE) mode at a user equipment (UE) in a wireless communication system in a wireless communication system is disclosed. The method includes steps of determining a CE mode level to be changed, transmitting a CE mode change request message to a network based on the determined CE mode level, and receiving a CE mode change message from the network via a physical downlink control channel. Especially, when the determined CE mode level is greater than a current CE mode level, a random access preamble associated with the determined CE mode level is transmitted to the network as the CE mode change request message.