Telefonaktiebolaget Lm Ericsson (publ)

György Miklós

Balázs Varga

János Farkas

János Harmatos

Joachim Sachs

Paul Schliwa-Bertling

Maria Belen Pancorbo Marcos

Johan Rune

Attila Mihály

Gunnar Mildh

Torsten Dudda

Sándor Rácz

Dinand Roeland

Szilveszter Nádas

Stefano Ruffini

Nianshan Shi

Göran Rune

Magnus Sandgren

Robert Baldemair

Yufei W Blankenship

Yi-Pin Eric Wang

Erik A Eriksson

John Walter Diachina

Sorour Falahati

Henning Wiemann

Karl Norrman

Pradeepa Ramachandra

Konstantinos Dimou

Gabor Fodor

Miguel Lopez

Kumar Balachandran

Andreas Höglund

Osman Nuri Can Yilmaz

Niclas Wiberg

Yong Yang

Jonas Fröberg Olsson

Jose Luis Pradas

Niklas Andgart

Stefan Rommer

Mattias Andersson

Hans Bertil Rönneke

Ying Sun

Henrik Enbuske

Patrik Salmela

Bernard Smeets

José Araújo

Zhenhua Zou

Sara Sandberg

Dennis Sundman

Anna Larmo

Zoltán Richárd Turányi

Kun Wang

Marilet De Andrade Jardim

Shabnam Sultana

Kefeng Kenny Zhang

Geza Szabo

Zoltán Turányi

Alexandros Palaios

Lars-Bertil Olsson

Kittipong Kittichokechai

Harald Gustafsson

John Stenfelt

Jan Backman

Maria Cruz Bartolomé Rodrigo

Gergely Pongrácz

Kimmo Juhani Hiltunen

Göran Hall

Roland Gustafsson

Per Persson

Dhruvin Patel

Hubertus Andreas Munz

Michael Breschel

Alexey Shapin

Norbert Reider

András Kern

Abdulrahman Alabbasi

Joakim Persson

Mohit Sethi

John Michael Walker

Zsolt Kenesi

Ola Angelsmark

Gabor Nemeth

Aldo Bolle

Miljenko Opsenica

Majid Gerami

Johan Lundsjö

Bikramjit Singh

Ala Nazari

Tomas Mecklin

Rikard Eriksson

Le Wang

Mårten Wahlström

Heidi-Maria Back

Johan Kristofer Olsson

Fredrik Svensson

Johannes Nygren

Muhammad Ikram Ashraf

Anders Höglund

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

Time-Sensitive Networking (TSN) domains () include centralized entities () for establishing and managing intra- and inter-domain TSN streams, with the inter-domain TSN streams based on an advantageous approach to inter-domain advertisement of respective end stations () operating as talkers and listeners. Based on exploiting and extending talker/listener messaging. inter-domain listener information returned to the TSN domain () of a given talker aggregates the status of TSN stream establishment with respect to each listener in each external TSN domain () that includes one or more end stations () interested in acting as listeners, and with respect to each external TSN domain () used to carry the TSN stream. Correspondingly, the configuration of network resources in the respective TSN domains () is made to depend on the exchanged status information.

Method and apparatus for inter-domain configuration of time-sensitive networks

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 related to congestion monitoring in a mobile communications network; in particular, a congestion monitoring unit that sends congestion information to a policy control unit for a plurality of mobile entities, wherein each of the mobile entities is connected to a respective radio access network and associated with the policy control unit, the congestion information indicates congestion of the respective radio access network. The congestion monitoring unit sends a request message to a policy control unit for transmitting congestion information of a mobile entity, the message routed by a Diameter Routing Agent (DRA) and includes congestion information and an identity for a given mobile entity; in response, the policy control unit sends a response message including an identity of the policy control unit. The congestion monitoring unit can then send aggregated congestion information for a plurality of mobile entities associated with the policy control unit.

Aggregation of congestion control

Systems and methods are disclosed herein that relate to a cellular communications system that operates as a virtual Ethernet bridge(s). Embodiments of a User Equipment (UE) for a cellular communications system and corresponding methods of operation of a UE are disclosed. In some embodiments, a UE for a cellular communications system, where the cellular communications system operates as multiple Ethernet network virtual bridges, comprises one or more transmitters, one or more receivers, and processing circuitry associated with the one or more transmitters and one or more receivers. The processing circuitry is configured to cause the UE to establish a first Protocol Data Unit (PDU) session to an Ethernet network via a first User Plane Function (UPF), wherein PDU sessions that connect to the Ethernet network via the first UPF are grouped into a first Ethernet network virtual bridge. In this manner, shared media in the Ethernet network can be avoided.

Cellular communications system support for virtual ethernet bridge management

A network node in a Wireless Communication Network (WNC) bridge receives scheduling information from a Central Network Controller (CNC). The network node calculates the RAN assistance information based on the scheduling information. The network node forwards the RAN assistance information towards a RAN scheduler that schedules RAN traffic passing through the WCN bridge.

Per-stream filtering and policing for RAN scheduling optimization in 5GS virtual TSN

A method for establishing a Protocol Data Unit (PDU) Session(s) is disclosed. In examples disclosed herein, a device (e.g., a wireless device) uses a unique Port Number(s) (e.g., an internal physical or logical Port Number) to search for a matching User Equipment (UE) Route Selection Policies (URSP) rule(s) having a Traffic Descriptor(s) that matches the unique Port Number(s). The device then determines whether there exists a matching PDU Session(s) associated with a Route Selection Descriptor(s) of the matching URSP rule(s). Accordingly, the device can reuse the matching PDU Session(s) in a presence of the matching PDU Session(s) or establish a new PDU Session(s) in an absence of the matching PDU Session(s). By using the unique Port Number(s) as the Traffic Descriptor(s) in the URSP rule(s), it is possible to simplify configuration of the device, especially for redundant traffic handling.

UE route selection policies for multi-port devices

Methods and systems for coordinated change of Protocol Data Unit (PDU) Session Anchors (PSAs) are provided. According to one embodiment, a method for coordinated change of PSAs comprises, at a node for maintaining PSA change status for PDU sessions, receiving a request for a PSA change or handover for a first PDU session having a first PSA, where the first PDU session and a second PDU session having a second PSA different from the first PSA are redundant PDU sessions with each other. If the second PDU session is undergoing a PSA change or handover, the request to change the first PDU session is denied; otherwise, the request to change the first PDU session is granted, and the second PDU session will not be allowed to be changed until the PSA change or handover for the first PDU session is complete.

Coordinated change of protocol data unit session anchors

Systems and methods are disclosed herein that relate to actions performed by a Radio Access Network (RAN) when redundancy is not available. In this regard, embodiments of a method performed by a RAN node are disclosed. In one embodiment, a method performed by a RAN node for RAN action when redundancy is not available comprises receiving, from a core network node, a request for a set of User Plane (UP) resources in the RAN. The method further comprises determining whether the request for the set of UP resources in the RAN can be met and sending, to the core network node, a response to the request for the set of UP resources that is based on whether the request for the set of UP resources in the RAN can be met.

Core network indication of radio access network action when redundancy is not available

A Virtual Endpoint and a method therein for enabling end-to-end connectivity between a wireless communication network and a wired communication network are disclosed. A Virtual Endpoint is implemented in the wireless communication network and certain user and control plane features used in the wired communication network are implemented in the VEP. The VEP maps data traffic between a device in the wireless communication network and a device in the wired communication network based on Quality-of-Service (QoS) and performs required actions defined by the features used in the wired communication network.

Methods for interworking between wireless and wired communication networks

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

Avoiding jitter in a communication network. A method for avoiding jitter includes receiving, an ingress point of the communication network, a packet, wherein the packet is received at the ingress point at a time within a particular time slot. The method also includes the ingress point creating a modified packet that includes the received packet and a slot identifier indicating the particular time slot in which the packet was received, the ingress point transmitting (s) the modified packet towards an egress point of the communication network.

Avoiding jitter in a communication system

A method may be performed by a network entity of a wireless communication network. A first PDU session may be established for a wireless terminal (UE) using a first NodeB base station (MgNB) and a first user plane function entity (UPF). A second PDU session may be established for the wireless terminal (UE) using a second NodeB base station (SgNB) and a second user plane function entity (UPF). The first and second PDU sessions may be established for the wireless terminal (UE) using the first and second NodeB base stations so that the first and second PDU sessions are provided concurrently using dual connectivity DC to provide redundant data paths for communication of data for the wireless terminal (UE) through the wireless communication network.

Methods providing dual connectivity for redundant user plane paths and related network nodes

A technique for monitoring a redundancy status of a connection established between a User Equipment, UE, and a cellular network is disclosed, wherein the connection is established using redundant communication paths between the UE and the cellular network. A method implementation of the technique is performed by a first node of the cellular network and comprises triggering determining a current redundancy status of the connection, the current redundancy status indicating whether or not the redundant communication paths are fully disjoint on at least a portion of the redundant communication paths, and triggering sending a redundancy notification to a second node of the cellular network, the redundancy notification including an indication of the determined current redundancy status.

Technique for monitoring a redundancy status of a connection

Systems and methods are disclosed herein that relate to reporting a multicast Medium Access Control (MAC) address used by a particular Protocol Data Unit (PDU) session in a cellular communications system. In some embodiments, a method performed in a core network of a cellular communications system comprises, at a User Plane Function (UPF), obtaining multicast MAC address information comprising a multicast MAC address to be used on a particular PDU session and information that identifies either or both of a User Equipment (UE) associated with the particular PDU session and the particular PDU session and reporting, to a Session Management Function (SMF), use of the multicast MAC address on the particular PDU session. The method further comprises, at the SMF, receiving the report from the UPF, and using the multicast MAC address to perform one or more operational tasks.

Reporting of multicast MAC addresses

Growing community of inventors

Pilisborosjenö, Hungary

György Miklós