2023年4月16日 · Downlink Data Delivery Status (DDDS) is the F1⁃U message sent by DU during the inter-DU-intra-CU handover phase to inform the gNB⁃CU about the highest PDCP PDU …

2023年3月24日 · DDDS (Downlink Data Delivery Status) is a signaling mechanism used in cellular networks to track the delivery status of data sent from the network to a mobile device. This …

2021年6月29日 · DDDS stands for downlink data delivery status. The DDDS is basically an elementary procedure of NRUP protocol defined in 3gpp in 38.425 and 36.425 for 5G and 4G …

In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and "cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting …

If the UP function supports the Downlink data delivery status notification with UPF buffering, the UP function shall set the DDDS feature flag in the UP Function Features IE (see clause 8.2.25).

ETSI 3GPP TS 38.401 version 15.2.0 Release 15 5 ETSI TS 138 401 V15.2.0 (2018-07) Foreword This Technical Specification has been produced by the 3rd Generation Partnership …

在 5g 网络中，完整性保护是一项至关重要的安全功能，旨在确保传输数据的真实性和完整性。 这种保护在控制平面中尤其重要，其中关键信令数据在用户设备（UE - 用户设备）和网络之间 …

2018年8月1日 · 该过程用于UE在同一gNB-DU内从一个小区移动到另一个小区的情况，或者用于在NR操作期间执行小区内切换的情况，当执行小区内切换时，gNB-CU向gNB-DU提供新的UL …

在3GPP空口协议定义里， PDCP 层位于 SDAP / RRC 层和 RLC 层之间。 PDCP一方面通过RLC channel访问传输服务，另一方面向上层提供 DRB 和 SRB 服务。 PDCP data transfer可理解 …

2022年5月26日 · Downlink Control Information (DCI) carries information from gNB-to-UE such as info DL/UL resource scheduling, power control, modulation and coding schemes to decode a …