Method and apparatus for rapidly reporting frequency measurement results in next generation mobile communication system
摘要
說明書
For safety reasons, a packet transmitted through the SRB1/SRB2 may be duplicated and transmitted to the MCG and the SCG. Likewise, a packet transmitted through the SRB3 may be duplicated and transmitted to the SCG and the MCG. This is referred to as a split bearer. A bearer that transmits data from an MCG CN connected to the MCG to the MCG and the SCG is referred to as an MCG split bearer. A bearer that transmits data from an SCG CN connected to the SCG to the SCG and the MCG is referred to as an SCG split bearer. Furthermore, the uplink and the downlink may be applied.
As described above, when the UE 3d-01 transmits/receives data through the SRB or DRB, the UE 3d-01 may perform an integrity check on each packet. The integrity check is to determine whether a packet has been damaged (e.g., by a malicious user). In this case, a message authentication code for integrity (MAC-I) may be included in each packet. A receiving stage may decipher the MAC-I generated based on a certain encryption key and a rule, and may identify whether a corresponding packet has been damaged by identifying whether corresponding information is correct. The MAC-I is always included in SRB packets. The MAC-I may be included in DRB packets for each DRB based on the configuration of an eNB.
