公开(公告)号：US11606828B2

公开(公告)日：2023-03-14

申请号：US16977765

申请日：2018-03-05

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Klaus Pedersen ,  Daniela Laselva ,  Nurul Mahmood

IPC: H04W76/15 ,  H04W36/00 ,  H04B7/06 ,  H04W36/30

Abstract: Methods, apparatuses, and computer program products for estimating the reliability and/or latency of a transmission in communication systems are provided. One method may include identifying at least one user equipment requiring dual connectivity or multi connectivity support. The method may then include configuring, by an anchor network node, at least one secondary network node to serve as a duplication set for the at least one user equipment. The duplication set may include one or more secondary network nodes that are capable of transmission of a duplicated packet to at least one user equipment. The method may also include receiving, from the at least one secondary network node, estimates of supported latency and reliability for the at least one user equipment. The configuring may include selecting the duplication set that minimizes a probability of outage and minimizes latency of the transmission of the duplicated packet to at least one user equipment.

公开(公告)号：US20190200273A1

公开(公告)日：2019-06-27

申请号：US15851935

申请日：2017-12-22

Applicant: Nokia Technologies Oy

Inventor： Klaus I. Pedersen ,  Daniela Laselva ,  Nurul Mahmood

IPC: H04W40/12 ,  H04L12/823 ,  H04L29/06

CPC classification number: H04W40/12 ,  H04L1/189 ,  H04L47/32 ,  H04L69/22 ,  H04L69/321 ,  H04W76/15 ,  H04W88/02

Abstract: An anchor node receives a packet, duplicates the packet to form two copies, flags each of two data units, each comprising one of the copies, with a duplication flag indicating the corresponding data unit comprises a copy. The anchor node sends one of the two data units through protocol layers towards transmission to a UE, and sends another of the two data units over a network interface and towards one or more duplicating nodes. A duplicating node receives in the data unit a copy of the packet. The duplicating node forwards the data unit with the packet to a first of multiple protocol layers toward transmission via an air interface toward the UE. The duplicating node discards, in the first protocol layer or in a layer lower than the first, the packet in response to receiving an ACK that a copy of the packet was successfully received by the UE.