PDCP stands for Packet Data Convergence Protocol . It is a layer of 5G NR radio protocol stack. It is placed top of the RLC Layer and below of the SDAP layer(for user plane) or RRC layer (for control plane) in the Radio Protocol Stack in 5G NR. Due to header compression functionality, it is called as convergence …5 Oca 2022
Read moreWhat is PDCP duplication?
Indicates whether or not uplink duplication status at the time of receiving this IE is configured and activated as specified in TS 38.323 [5]. The presence of this field indicates that duplication is configured. PDCP duplication is not configured for CA packet duplication of LTE RLC bearer.
Read moreWhat is PDCP PDU?
PDCP Header Compression : PDCP removes IP header (Minimum 20 bytes) from PDU, and adds Token of 1-4 bytes . Which provides a tremendous savings in the amount of header that would otherwise have to go over the air. RLC layer does segmentation of these SDUS to make the RLC PDUs.
Read moreWhat is ciphering and deciphering in LTE?
Encryption/Ciphering: It refers to the process of encryption/ciphering by a sender and deciphering or decryption by a receiver . The sender ciphers the message using its key and a certain algorithm and sends it to the receiver, who then decrypts it using the same key and algorithm.
Read moreWhat is ciphering in 5G?
The new 5G system brings high demands on cryptographic algorithms used for air encryption. Ericsson Research together with Lund University have revised the design of SNOW 3G and updated it to a new faster cipher called SNOW-V , which could be used to secure 5G and the coming mobile systems.
Read moreWhat are the ciphering and integrity algorithms available in LTE?
Possible algorithms are: 128-eia0: Null ciphering algorithm (128-EIA0) for LTE integrity as the integrity algorithm for security procedures. 128-eia1: SNOW 3G synchronous stream ciphering algorithm (128-EIA1) for LTE integrity as the integrity algorithm for security procedures.
Read moreWhat is integrity key and ciphering key?
While integrity check is a mandatory function, ciphering is an optional function. NAS security keys, such as integrity key (KNASint) and ciphering key (KNASenc), are derived by UEs and MMEs from K ASME. AS Security. AS security is purposed to ensure secure delivery of data between a UE and an eNB over radio links.
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