Method and apparatus for accelerating data processing in next-generation wireless communication system
The disclosure relates to a 5th generation (5G) or 6 th generation (6G) communication system for supporting a higher data rate than that of a beyond-4G communication system such as Long-term evolution (LTE). A method and an apparatus for improving procedures that have high data processing complexity or require a lot of time for data processing in a next-generation mobile communication system are provided.
1 . A method performed by a packet data convergence protocol (PDCP) layer of a transmission device in a wireless communication system, the method comprising:
receiving, from an upper layer, PDCP service data units (SDUs);
generating a PDCP control protocol data unit (PDU);
performing concatenation of the PDCP SDUs to generate a concatenated data, wherein the concatenation is not applied to the PDCP control PDU;
applying at least one operation of integrity protection or ciphering for the concatenated data, based on security key information; and
submitting, to a lower layer, at least one PDCP PDU including the concatenated data for which the at least one operation is applied.
2 . The method of claim 1 , further comprising:
generating a field related to the concatenation,
wherein the at least one PDCP PDU further includes the field.
3 . The method of claim 2 ,
wherein the field is included in the concatenated data of the at least one PDCP PDU.
4 . The method of claim 2 ,
wherein the at least one PDCP PDU further includes a PDCP header, and
wherein the field is included in the PDCP header.
5 . The method of claim 1 , wherein the PDCP SDUs are concatenated based on an order of reception from the upper layer.
6 . A method performed by a packet data convergence protocol (PDCP) layer of a reception device in a wireless communication system, the method comprising:
receiving, from a transmission device through a lower layer, at least one PDCP protocol data unit (PDU);
identifying a PDCP control PDU and concatenated data from the at least one PDCP PDU;
applying at least one operation of integrity verification or a deciphering for the concatenated data, based on security key information;
obtaining PDCP service data units (SDUs) separated from the concatenated data, and PDCP control SDU from the PDCP control PDU; and
delivering, to an upper layer, the PDCP control SDU and the PDCP SDU.
7 . The method of claim 6 , further comprising:
identifying a field related to concatenation included in the at least one PDCP PDU,
wherein the PDCP SDUs are separated from the concatenated data based on the field.
8 . The method of claim 7 ,
wherein the field is included in the concatenated data of the at least one PDCP PDU.
9 . The method of claim 7 ,
wherein the at least one PDCP PDU further includes a PDCP header, and
wherein the field is included in the PDCP header.
10 . The method of claim 6 , wherein the separated PDCP SDUs are transferred to the upper layer based on an order of placement from a front.
11 . A transmission device in a wireless communication system, the transmission device comprising:
a transceiver; and
a controller configured to control a packet data convergence protocol (PDCP) layer to:
receive, from an upper layer, PDCP service data units (SDUs),
generate a PDCP control protocol data unit (PDU),
perform concatenation of the PDCP SDUs to generate a concatenated data, wherein the concatenation is not applied to the PDCP control PDU,
apply at least one operation of integrity protection or ciphering for the concatenated data, based on security key information, and
submit, to a lower layer, at least one PDCP PDU including the concatenated data for which the at least one operation is applied.
12 . The transmission device of claim 11 ,
wherein the controller is further configured to generate a field related to the concatenation, and
wherein the at least one PDCP PDU further includes the field.
13 . The transmission device of claim 12 ,
wherein the field is included in the concatenated data of the at least one PDCP PDU.
14 . The transmission device of claim 12 ,
wherein the at least one PDCP PDU further includes a PDCP header, and
wherein the field is included in the PDCP header.
15 . The transmission device of claim 11 , wherein the controller is further configured to concatenate the PDCP SDUs based on an order of reception from the upper layer.
16 . A reception device in a wireless communication system, the reception device comprising:
a transceiver; and
a controller configured to control a packet data convergence protocol (PDCP) layer to:
receive, from a lower layer, at least one PDCP protocol data unit (PDU),
identify a PDCP control PDU and concatenated data from the at least one PDCP PDU,
apply at least one operation of integrity verification or a deciphering for the concatenated data, based on security key information,
obtain PDCP service data units (SDUs) separated from the concatenated data, and PDCP control SDU from the PDCP control PDU, and
deliver, to an upper layer, the PDCP control SDU and the PDCP SDUs.
17 . The reception device of claim 16 ,
wherein the controller is further configured to identify a field related to concatenation included in the at least one PDCP PDU, and
wherein the PDCP SDUs are separated from the concatenated data based on the field.
18 . The reception device of claim 17 ,
wherein the field is included in the concatenated data of the at least one PDCP PDU.
19 . The reception device of claim 17 ,
wherein the at least one PDCP PDU further includes a PDCP header, and
wherein the field is included in the PDCP header.
20 . The reception device of claim 16 ,
wherein the controller is further configured to transfer the separated PDCP SDUs to the upper layer in an order of placement from a front.