Telefonaktiebolaget Lm Ericsson (publ)

Kun Wang

Paul Schliwa-Bertling

John Walter Diachina

Robert Baldemair

Yufei W Blankenship

Joachim Sachs

Dinand Roeland

György Miklós

Stefano Ruffini

Balázs Varga

János Farkas

Torsten Dudda

Magnus Sandgren

Maria Belen Pancorbo Marcos

János Harmatos

Shabnam Sultana

Zhenhua Zou

Yi-Pin Eric Wang

Sorour Falahati

Pradeepa Ramachandra

Miguel Lopez

Kumar Balachandran

Osman Nuri Can Yilmaz

Jonas Fröberg Olsson

Jose Luis Pradas

Niklas Andgart

Mattias Andersson

Sándor Rácz

Ying Sun

Henrik Enbuske

Patrik Salmela

Nianshan Shi

Bernard Smeets

José Araújo

Sara Sandberg

Anna Larmo

Kittipong Kittichokechai

Geza Szabo

Göran Eriksson

Harald Gustafsson

Mona Matti

Alexey Shapin

Per Persson

Kefeng Kenny Zhang

Marilet De Andrade Jardim

Mårten Wahlström

Anders Höglund

Norbert Reider

András Kern

Abdulrahman Alabbasi

Joakim Persson

Xuejun Cai

Zhang Fu

Zsolt Kenesi

Ola Angelsmark

Alexandros Palaios

Gabor Nemeth

Bikramjit Singh

Majid Gerami

Johan Lundsjö

Dhruvin Patel

Hubertus Andreas Munz

Ala Nazari

Jaeseong Jeong

Gábor Németh

Géza Szabó

Chunmeng Wang

Fredrik Svensson

Johannes Nygren

Muhammad Ikram Ashraf

Torgny Holmberg

Per Skarin

Malgorzata Svensson

Fedor Chernogorov

Rodrigo Berg

Wolfgang Tonutti

Johan Olsson

Jonas Olsson Fröberg

Norberg Reider

Techniques for enhancing performance in Industrial Internet-of-Things (IIoT) scenarios, including techniques for time-sensitive networking (TSN) and 5G wireless network integration. An example method, performed by a wireless device, comprises receiving system information (SI) from a radio base station (RBS) of a radio access network (RAN), the SI being indicative of support for TSN through the RBS, and establishing at least one TSN stream with an external data network, through the RBS. The example method further includes receiving a first timing signal from the wireless communications network, via the RBS, receiving a second timing signal from the external TSN data network to which the wireless device is connected, comparing the first timing signal to the second timing signal to determine an offset, and transmitting the offset to the wireless communications network.

Industrial automation with 5G and beyond

A method performed by a transmitting device, in a 3GPP wireless communicationsystem (), for handling generalized Precise Timing Protocol (gPTP) signaling, from a Time Sensitive Network (TSN) is provided. The transmitting device receives () a gPTP frame from the TSN network. The gPTP frame comprises time information, an indication of a time domain related to the time information and/or a Medium Access Control (MAC) address of a second end station connected to a receiving device. Basedon the indication of the time domain and/or the MAC address, the transmitting device determines () the receiving device which the gPTP frame relates to. The transmitting device transmits (), to the determined receiving device, the gPTP frame in a PDU session related to the determined receiving device.

Devices and methods for handling precise timing protocol frames

Systems and methods are disclosed herein that relate to Time Sensitive Communication (TSC) to Fifth Generation (5G) Quality of Service (QoS) mapping and associated QoS binding. In one embodiment, a method for QoS mapping in a 5G System (5GS) for a virtual Time Sensitive Networking (TSN) bridge comprises, at a first network function, obtaining information from a TSN Application Function (AF) comprising baseline TSC QoS parameters and one or more additional parameters comprising either or both of: (a) one or more additional TSC QoS attributes and (b) one or more additional traffic attributes. The method further comprises, at the first network function, generating one or more Policy and Charging Control (PCC) rules based on the obtained information and providing the one or more PCC rules to a second network function. The method further comprises, at the second network function, performing QoS binding based on the one or more PCC rules.

TSC-5G QoS mapping with consideration of assistance traffic information and PCC rules for TSC traffic mapping and 5G QoS flows binding

Systems and methods for Quality of Service (QoS) mapping based on latency and throughput are provided. A method performed by a first node for mapping Time-Sensitive Networking (TSN) streams includes: receiving traffic class specific information for one or more TSN streams; and determining a set of one or more 5G QoS flows to support the traffic class. This provides solutions where 5QI table entries configured by a 5GS can result in underproviding or overproviding the payload capacity made available to support the traffic class. If less payload space is provided, then TSN stream payload corresponding to the traffic class will be lost. If more space is provided, then radio interface resources will be used inefficiently. As such, the solutions identified herein allow for more efficient use of radio interface resources associated with a 5G QoS flow used to support a set of TSN streams corresponding to a TSN traffic class.

QoS mapping

Systems and methods are disclosed herein for output pacing in a cellular communications system that serves as a virtual Time-Sensitive Networking (TSN) node in a TSN network. In some embodiments, a method of operation of a boundary node associated with a cellular communications system that operates as a virtual TSN node in a TSN network comprises receiving user plane traffic from a node in the cellular communications system. The user plane traffic is user plane traffic received by the cellular communications system from a previous hop TSN node. The method further comprises performing output pacing for the user plane traffic when outputting the user plane traffic to a next hop TSN node such that the user plane traffic is output to the next hop TSN node at a rate that matches a desired rate at the next hop TSN node. Corresponding embodiments of a boundary node are also disclosed.

Output pacing in a cellular communications system serving as a time-sensitive networking (TSN) node

Systems and methods are disclosed herein that relate to Quality of Service (QoS) mapping in a cellular communications system that operates as a Time Sensitive Networking (TSN) bridge. In one embodiment, a method of operation of a Session Management Function (SMF) in a cellular communications system that operates as a bridge for a TSN system comprises obtaining a QoS mapping table that maps TSN traffic classes to QoS flows within the cellular communications system and distributing at least a part of the QoS mapping table to a User Plane Function (UPF) or a TSN Translator (TT) at the UPF side. In this manner, QoS mapping is provided. Corresponding embodiments of an SMF and a network node that implements an SMF are also disclosed. Embodiments of method of operation of an Application Function (AF) and corresponding embodiments of an AF and a network node that implements an AF are also disclosed.

TSN and 5GS QoS mapping—a user plane based method

Systems and methods related to conveying Time Sensitive Networking (TSN) synchronization information within a cellular communication system (e.g., a Fifth Generation System (5GS)) are disclosed. In one embodiment, a method performed by a User Equipment (UE) in a cellular communications system or a TSN Translator (TT) associated with the UE comprises receiving, from a TSN end station, a Precision Time Protocol (PTP) or generalized PTP (gPTP) announce message comprising information that identifies one or more clock domains for which the TSN end station desires to receive PTP or gPTP messages. The method further comprises sending, to a core network node in the cellular communications system, either: (a) the information that identifies the one or more clock domains extracted from the PTP or gPTP announce message or (b) the PTP or gPTP announce message. Using this information, UE specific PTP or gPTP message filtering may be applied.

5G system signaling methods to convey TSN synchronization information

Methods and apparatuses for logical time sensitive network (TSN) bridge are disclosed. According to an embodiment, a session management node receives, from a mobility management node in a mobile network, a first request for establishing a protocol data unit (PDU) session for a terminal device which is associated with a port of a logical TSN bridge. The session management node obtains a first port number of the logical TSN bridge at the side of the terminal device. The session management node obtains configuration information of the logical TSN bridge at a side of a user plane node corresponding to the PDU session.

Methods and apparatuses for logical TSN bridge

Systems and methods related to Time-Sensitive Networking (TSN)-cellular communication system Quality of Service (QoS) mapping are disclosed. In some embodiments, a method performed for operating a cellular communications system as a virtual TSN node in a TSN system comprises, at a TSN application function, receiving one or more TSN QoS parameters for the virtual TSN node from a controller associated with the TSN system and providing the one or more TSN QoS parameters to a core network function in a core network of the cellular communications system. The method further comprises, at the core network function, receiving the one or more TSN QoS parameters, mapping them to one or more QoS policies and/or one or more rules in the cellular communications system, and applying the one or more QoS policies and/or the one or more rules in the cellular communications system.

TSN-cellular communication system QoS mapping and RAN optimization based on TSN traffic pattern related information

Systems and method are disclosed herein that relate to support for virtual Time-Sensitive Networking (TSN) bridge management, Quality of Service (QoS) mapping, and TSN related scheduling in a cellular communications system. In some embodiments, a method performed by one or more network nodes of a cellular communications system operating as a virtual TSN bridge of a TSN network comprises providing, to a controller associated with the TSN network, parameters that relate to capabilities of the virtual TSN bridge. The parameters that relate to the capabilities of the virtual TSN bridge comprise a first parameter that defines a clock accuracy of an entity in the cellular communications system that operates gating control for the virtual TSN bridge and a second parameter that informs the controller associated with the TSN network that the virtual TSN bridge or a particular egress port of the virtual TSN bridge is restricted to exclusive gating.

5G system support for virtual TSN bridge management, QoS mapping and TSN Qbv scheduling

Embodiments described herein provide methods and apparatuses for relate to methods and apparatuses for providing processing functions by microservices in a service. A first microservice is capable of providing a first processing function in a service comprising a plurality of microservices. The method includes receiving a processing request to provide the first processing function; obtaining a sequence of a plurality of microservices associated with the processing request, wherein the sequence comprises the first microservice; obtaining a current latency requirement associated with the remaining microservices in the sequence; obtaining an estimated latency associated with the remaining microservices in the sequence; and placing the processing request in a processing queue based on a comparison between the current latency requirement and the estimated latency.

Methods and apparatuses for service discovery

A de-jitter function for holding-and-forwarding packets such that the packets are delivered with an agreed fixed latency. The de-jitter function can be placed at the edge of a virtual 5G TSN switch (e.g. the de-jitter function can be deployed as part of a UPF for uplink (UL) packets and/or it can be deployed as part of a user equipment (UE) for downlink (DL) packets). By using the de-jitter function, the TSN can consider the wireless network as having a consistent, deterministic latency with no jitter.

Communication system with de-jitter buffer for reducing jitter

Systems and methods to enable 5G system support for conveying time synchronization are provided. In some embodiments, a method performed by a wireless device for conveying external time domain information is provided. The method includes receiving a message in a first time domain used by the wireless device, the message comprising external time domain information; determining information about a second time domain based on the external time domain information; and conveying information about the second time domain to another node. In some embodiments, timing information is included into a GPRS Tunneling Protocol (GTP) payload, and the wireless device can get timing information directly from the data payload. This minimizes the RAN and/or gNB impact and adds the potential for multiple time domain support.

5G system support for conveying TSN time synchronization

Growing community of inventors

Solna, Sweden

Kun Wang