Method and apparatus for transmitting and receiving information
Embodiment of the present application provides the method comprising receiving a first message and/or transmitting a second message, to transmit a first data based on a resource configuration corresponding to the first message and/or the second message; initiating a random access request message, to transmit the first data request message first data based on the resource configuration. Based on the solutions provided by embodiments of the present disclosure, optimization of the procedure that requires data transmission when the user device is in the first connected status can be achieved.
1 . A method performed by a first node in a wireless communication system, the method comprising:
transmitting, to a second node, an user equipment (UE) context modification request message including a request indication for configuration information for configured grant (CG)-small data transmission (SDT) or SDT bearer configuration;
receiving, from the second node, an UE context modification response message including configuration information for SDT related with CG based on the request indication; and
transmitting, to the second node, an UE context release command message for an UE entering radio resource control (RRC) inactive state, wherein the UE context release command message includes an indication information indicating not to release information related to at least one of SDT RLC configuration or tunnel of a SDT bearer.
2 . The method of claim 1 ,
wherein the UE context modification request message further includes identity information of a radio bearer and indication information of small data.
3 . The method of claim 2 ,
wherein in case that the request indication for the configuration information for CG-SDT is included in the UE context modification request message, the UE context modification response message includes at least one of time alignment timer for configured grant, or configuration of physical uplink shared channel (PUSCH), and
wherein in case that the request indication for the SDT bearer configuration is included in the UE context modification request message, the UE context modification response message, includes radio link control (RLC) bearer configuration for SDT bearer including at least one of bearer identity, logical channel identity, RLC configuration information, or logical channel configuration information.
4 . The method of claim 1 , wherein the first node is a central unit of a base station or control plane entity of the central unit of the base station and the second node is a distributed unit of the base station.
5 . A first node in a wireless communication system, the first node comprising:
at least one transceiver; and
at least one processor connected to the transceiver,
wherein the at least one processor is configured to:
transmit, to a second node, an user equipment (UE) context modification request message including a request indication for configuration information for configured grant (CG)-small data transmission (SDT) or SDT bearer configuration,
receive, from the second node, an UE context modification response message including configuration information for SDT related with CG, based on the request indication, and
transmit, to the second node, an UE context release command message for an UE entering radio resource control (RRC) inactive state, wherein the UE context release command message includes indication information indicating not to release information related to at least one of SDT RLC configuration or tunnel of a SDT bearer.
6 . The first node of claim 5 ,
wherein the UE context modification request message further includes identity information of a radio bearer and indication information of small data.
7 . The first node of claim 6 ,
wherein in case that the request indication for the configuration information for CG-SDT is included in the UE context modification request message, the UE context modification response message includes at least one of time alignment timer for configured grant, or configuration of physical uplink shared channel (PUSCH), and
wherein in case that the request indication for the SDT bearer configuration is included in the UE context modification request message, the UE context modification response message, includes radio link control (RLC) bearer configuration for SDT bearer including at least one of bearer identity, logical channel identity, RLC configuration information, and logical channel configuration information.
8 . A method performed by a second node in a wireless communication system, the method comprising:
receiving, from a first node, an user equipment (UE) context modification request message including a request indication for configuration information for configured grant (CG)-small data transmission (SDT) or SDT bearer configuration;
transmitting, to the first node, an UE context modification response message including configuration information for SDT related with CG, based on the request indication; and
receiving, from the first node, an UE context release command message for an UE entering radio resource control (RRC) inactive state, wherein the UE context release command message includes indication information indicating not to release information related to at least one of SDT RLC configuration or tunnel of a SDT bearer.
9 . The method of claim 8 ,
wherein the UE context modification request message further includes identity information of a radio bearer and indication information of small data.
10 . The method of claim 9 ,
wherein in case that the request indication for the configuration information for CG-SDT is included in the UE context modification request message, the UE context modification response message includes at least one of time alignment timer for configured grant, or configuration of physical uplink shared channel (PUSCH), and
wherein in case that the request indication for the SDT bearer configuration is included in the UE context modification request message, the UE context modification response message, includes radio link control (RLC) bearer configuration for SDT bearer including at least one of bearer identity, logical channel identity, RLC configuration information, and logical channel configuration information.
11 . A second node in a wireless communication system, the second node comprising:
at least one transceiver; and
at least one processor connected to the transceiver,
wherein the at least one processor is configured to:
receive, from a first node, an user equipment (UE) context modification request message including a request indication for configuration information for confugured grant (CG)-small data transmission (SDT) or SDT bearer configuration,
transmit, to the first node, an UE context modification response message including configuration information for SDT related with CG, based on the request indication, and
receive, from the first node, an UE context release command message for an UE entering radio resource control (RRC) inactive state, wherein the UE context release command message includes indication information indicating not to release information related to at least one of SDT RLC configuration or tunnel of a SDT bearer.
12 . The second node of claim 11 ,
wherein the UE context modification request message further includes identity information of a radio bearer and indication information of small data.
13 . The second node of claim 11 , wherein the at least one processor is further configured to configure, to the UE, threshold information indicating a threshold for amount of small data.