Method and apparatus for segmenting radio resource control message in next-generation mobile communication system
The present disclosure relates to a pre-5 th -Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4 th -Generation (4G) communication system such as Long Term Evolution (LTE). The present disclosure relates to a method of segmenting data by a transmitting side in a mobile communication system. The method includes: determining whether a size of a RRC (radio resource control) message exceeds a maximum PDCP (packet data convergence protocol) SDU (service data unit) size; when the size of the RRC message exceeds the maximum PDCP SDU size, performing a segmentation of the RRC message into a plurality of segments in a RRC layer; and transmitting, to a base station (BS), the plurality of segments of the RRC message.
1. A method performed by a user equipment (UE), the method comprising:
receiving, from a base station (BS) via a radio resource control (RRC) signaling, a UE capability enquiry message including an indicator indicating that a segmentation of a UE capability information message is allowed;
determining whether a size of the UE capability information message exceeds a maximum packet data convergence protocol (PDCP) service data unit (SDU) size;
in case that the size of the UE capability information message exceeds the maximum PDCP SDU size, performing the segmentation of the UE capability information message into a plurality of segments in a RRC layer based on the indicator; and
transmitting, to the BS, messages for transmitting the plurality of segments of the UE capability information message,
wherein each of the messages includes information on a segment number and information for segment type.
2. The method of claim 1 , further comprising:
setting the segment number for a first segment of the plurality of segments to 0; and
incrementing the segment number for each subsequent segment of the plurality of segments.
3. The method of claim 1 ,
wherein the information for segment type indicates whether a segment is a last segment of the plurality of segments or not.
4. The method of claim 1 , wherein the messages for transmitting the plurality of segments of the UE capability information message are transmitted by transmitting to lower layers based on the segment number.
5. A user equipment (UE), the UE comprising:
a transceiver; and
at least one processor coupled with the transceiver, wherein the at least one processor configured to:
receive, from a base station (BS), via a radio resource control (RRC) signaling, a UE capability enquiry message including an indicator indicating that a segmentation of a UE capability information message is allowed;
determine whether a size of the UE capability information message exceeds a maximum packet data convergence protocol (PDCP) service data unit (SDU) size;
in case that the size of the UE capability information message exceeds the maximum PDCP SDU size, perform the segmentation of the UE capability information message into a plurality of segments in a RRC layer based on the indicator; and
transmit, to the BS, messages for transmitting the plurality of segments of the UE capability information message,
wherein each of the messages includes information on a segment number and information for segment type.
6. The UE of claim 5 , wherein the at least one processor further configured to:
set the segment number for a first segment of the plurality of segments to 0; and
increment the segment number for each subsequent segment of the plurality of segments.
7. The UE of claim 5 , wherein the information for segment type indicates whether a segment is a last segment of the plurality of segments or not.
8. The UE of claim 5 , wherein the messages for transmitting the plurality of segments of the UE capability information message are transmitted by transmitting to lower layers based on the segment number.
9. A method performed by a base station (BS), the method comprising:
transmitting, to a user equipment (UE) via a radio resource control (RRC) signaling, a UE capability enquiry message including an indicator indicating that a segmentation of a UE capability information message is allowed; and
receiving, from a user equipment (UE), messages for transmitting a plurality of segments of the UE capability information message,
wherein the segmentation of the UE capability information message is performed in a RRC layer based on the indicator in case that a size of the UE capability information message exceeds a maximum packet data convergence protocol (PDCP) service data unit (SDU) size, and
wherein each of the messages includes information on a segment number and information for segment type.
10. The method of claim 9 , wherein the information for segment type indicates whether a segment is a last segment of the plurality of segments or not.
11. The method of claim 9 , wherein the messages for transmitting the plurality of segments of the UE capability information message are transmitted by transmitting to lower layers of the UE based on the segment number.