Method and apparatus for controlling transmission of response signal in wireless communication system
The present disclosure relates to method and apparatus for controlling a transmission of a response signal in a wireless communication system. According to an embodiment of the present disclosure, a method performed by a wireless device in a wireless communication system, comprises receiving a signal for a paging from a network; and receiving downlink (DL) data related to the paging, wherein a transmission of at least one of a paging response for the paging or acknowledgment (ACK) information for the DL data is determined based on information included in the signal for the paging.
1. A method performed by a wireless device in a wireless communication system, the method comprising:
receiving a paging from a network;
initiating a random access procedure after receiving the paging;
transmitting, to the network, a message 1 (Msg1) of the random access procedure including a preamble;
receiving, from the network, a message 2 (Msg2) of the random access procedure including a response for the preamble,
wherein the response includes an uplink (UL) grant;
transmitting, to the network, a message 3 (Msg3) of the random access procedure based on the UL grant,
wherein the Msg3 includes an early data transmission (EDT) cause; and
receiving, from the network, a message 4 (Msg4) of the random access procedure after transmitting the Msg3,
wherein the Msg4 includes downlink data related to the paging,
wherein the method further comprises determining whether a transmission of a paging response for the paging is required or not based on a configuration by the network,
wherein the Msg3 includes a non-access stratum (NAS) message for the paging response based on a determination that the transmission of the paging response is required, and
wherein the Msg3 excludes the NAS message for the paging response based on a determination that the transmission of the paging response is not required.
2. The method of claim 1 , further comprising:
determining whether a transmission of an acknowledgment (ACK) information for the downlink data is required or not based on the configuration by the network; and
transmitting, to the network, the ACK information for downlink data based on a determination that the transmission of the ACK information is required.
3. The method of claim 2 , further comprising:
in response to transmitting the ACK information, transitioning to an idle mode without receiving a radio resource control (RRC) connection release message from the network,
wherein the Msg3 excludes the NAS message for the paging response.
4. The method of claim 2 , wherein the NAS message for the paging response and the ACK information for the DL data are transmitted in a same message.
5. The method of claim 1 , further comprising:
transitioning to a connected mode in response to receiving the DL data.
6. The method of claim 1 , wherein the downlink data is received via a non-access stratum (NAS) protocol data unit (PDU) during the random access procedure.
7. A wireless device in a wireless communication system, comprising:
a memory;
a transceiver; and
at least one processor, operatively coupled to the memory and the transceiver, configured to:
control the transceiver to receive a paging from a network;
initiate a random access procedure after receiving the paging;
control the transceiver to transmit, to the network, a message 1 (Msg1) of the random access procedure including a preamble;
control the transceiver to receive, from the network, a message 2 (Msg2) of the random access procedure including a response for the preamble,
wherein the response includes an uplink (UL) grant;
control the transceiver to transmit, to the network, a message 3 (Msg3) of the random access procedure based on the UL grant,
wherein the Msg3 includes an early data transmission (EDT) cause; and
control the transceiver to receive, from the network, a message 4 (Msg4) of the random access procedure after transmitting the Msg3,
wherein the Msg4 includes downlink data related to the paging,
wherein the at least one processor is further configured to determine whether a transmission of a paging response for the paging is required or not based on a configuration by the network,
wherein the Msg3 includes a non-access stratum (NAS) message for the paging response based on a determination that the transmission of the paging response is required, and
wherein the Msg3 excludes the NAS message for the paging response based on a determination that the transmission of the paging response is not required.