Ralf Keller

Person

Wurselen, DE

People

Patents Grantslast 30 patents

Information Patent Grant
First IMS node, first core network node, second IMS node, and metho...
- Patent number 12,368,761
- Issue date Jul 22, 2025
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf Keller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Network node, user equipment, and methods performed in a communicat...
- Patent number 12,336,049
- Issue date Jun 17, 2025
- Telefonaktiebolaget LM Ericsson (publ)
- Afshin Abtin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Battery device
- Patent number 12,327,879
- Issue date Jun 10, 2025
- Dr. Ing. h.c.F. Porsche Aktiengesellschaft
- Philipp Kellner
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Battery arrangement for an electric vehicle
- Patent number 12,315,950
- Issue date May 27, 2025
- Dr. Ing. h.c.F. Porsche Aktiengesellschaft
- Philipp Kellner
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Maintaining N32 interface when using different radio access technol...
- Patent number 12,256,361
- Issue date Mar 18, 2025
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf Keller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Session establishment with a local serving network
- Patent number 12,232,188
- Issue date Feb 18, 2025
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf Keller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Methods and apparatuses for implementing mobile terminating call
- Patent number 12,206,819
- Issue date Jan 21, 2025
- Telefonaktiebolagget LM Ericsson (Publ)
- Lei Xia
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Drive battery
- Patent number 12,199,301
- Issue date Jan 14, 2025
- Dr. Ing. h.c.F. Porsche Aktiengesellschaft
- Maximilian Müller
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Short message service (SMS) delivery
- Patent number 12,192,860
- Issue date Jan 7, 2025
- Telefonaktiebolaget LM Ericsson (publ)
- David Castellanos Zamora
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dynamic RSFP
- Patent number 12,150,095
- Issue date Nov 19, 2024
- Telefonaktiebolaget LM Ericsson (publ)
- George Foti
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Packet data connectivity control with volume charged service limita...
- Patent number 12,143,528
- Issue date Nov 12, 2024
- Telefonaktiebolaget L M Ericsson (Publ)
- Ralf Keller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and network node for home charging of offloaded traffic at v...
- Patent number 12,022,023
- Issue date Jun 25, 2024
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf Keller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optimized handling of traffic management-initiated access change
- Patent number 11,985,556
- Issue date May 14, 2024
- Telefonaktiebolaget LM Ericsson (publ)
- Christer Gustafsson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Controlled handover from an incoming access network to a cellular a...
- Patent number 11,943,678
- Issue date Mar 26, 2024
- Telefonaktiebolaget LM Ericsson (publ)
- George Foti
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Internet protocol multimedia subsystem emergency calls for roaming...
- Patent number 11,917,516
- Issue date Feb 27, 2024
- Telefonaktiebolaget LM Ericsson (publ)
- Fredrik Lindholm
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method, and nodes, for discovering services in a telecommunication...
- Patent number 11,864,091
- Issue date Jan 2, 2024
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf Keller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Technique for preparing user equipment mobility
- Patent number 11,838,805
- Issue date Dec 5, 2023
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf Keller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Battery arrangement for electric vehicle
- Patent number 11,811,033
- Issue date Nov 7, 2023
- Dr. Ing. h.c. F. Porsche Aktiengesellschaft
- Philipp Kellner
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Motor vehicle comprising a traction battery module
- Patent number 11,780,310
- Issue date Oct 10, 2023
- Dr. Ing. h.c. F. Porsche Aktiengesellschaft
- Philipp Kellner
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Internet protocol multimedia subsystem emergency calls for roaming...
- Patent number 11,743,705
- Issue date Aug 29, 2023
- Telefonaktiebolaget LM Ericsson (publ)
- Fredrik Lindholm
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication establishment
- Patent number 11,722,936
- Issue date Aug 8, 2023
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf Keller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Core network node, user equipment and methods in a packet communica...
- Patent number 11,696,182
- Issue date Jul 4, 2023
- Telefonaktiebolaget LM Ericsson (publ)
- Panagiotis Saltsidis
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Device registration in a communications network
- Patent number 11,647,476
- Issue date May 9, 2023
- Telefonaktiebolaget LM Ericsson (publ)
- Mats Stille
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Access control in communications network comprising slices
- Patent number 11,641,620
- Issue date May 2, 2023
- Telefonaktiebolaget LM Ericsson (publ)
- Branko Djordjevic
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Technique for preparing user equipment mobility
- Patent number 11,611,913
- Issue date Mar 21, 2023
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf Keller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Battery module for a motor vehicle and method for the production th...
- Patent number 11,532,849
- Issue date Dec 20, 2022
- Dr. Ing. h.c.F. Porsche AG
- Philipp Kellner
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Network repository function in 5GC
- Patent number 11,523,307
- Issue date Dec 6, 2022
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf Keller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Technique for preparing user equipment mobility
- Patent number 11,470,528
- Issue date Oct 11, 2022
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf Keller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of establishing a voice over internet protocol, VoIP, call b...
- Patent number 11,445,560
- Issue date Sep 13, 2022
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf Keller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Network slicing awareness in IP multimedia subsystem
- Patent number 11,438,831
- Issue date Sep 6, 2022
- Telefonaktiebolaget LM Ericsson (publ)
- Mats Stille
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
UE POLICIES PROVISIONING IN A COMMUNICATIONS NETWORK
- Publication number 20250219855
- Publication date Jul 3, 2025
- Telefonaktiebolaget LM Ericsson (publ)
- Antonio INIESTA GONZALEZ
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHODS FOR EXPOSURE OF DATA/ANALYTICS OF A COMMUNICATION NETWORK I...
- Publication number 20250211967
- Publication date Jun 26, 2025
- Telefonaktiebolaget LM Ericsson (publ)
- Zhang FU
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DYNAMIC RETRIEVAL OF NSAC INFORMATION
- Publication number 20250113216
- Publication date Apr 3, 2025
- Telefonaktiebolaget LM Ericsson (publ)
- George Foti
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Handling Discovery Requests in a Network
- Publication number 20250088566
- Publication date Mar 13, 2025
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf Keller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SLICE TRAFFIC MANAGEMENT
- Publication number 20250016602
- Publication date Jan 9, 2025
- Telefonaktiebolaget LM Ericsson (publ)
- George Foti
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Distributed Network Edge Security Architecture
- Publication number 20240334184
- Publication date Oct 3, 2024
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf Keller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
NETWORK SLICE QUOTAS IN THE PRESENCE OF INTERWORKING
- Publication number 20240323708
- Publication date Sep 26, 2024
- Telefonaktiebolaget LM Ericsson (publ)
- George Foti
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
First IMS Node, First Core Network Node, Second IMS Node, and Metho...
- Publication number 20240236151
- Publication date Jul 11, 2024
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf Keller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
First IMS Node, First Core Network Node, Second IMS Node, and Metho...
- Publication number 20240137392
- Publication date Apr 25, 2024
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf Keller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
NETWORK NODE, TERMINAL, AND METHODS THEREIN
- Publication number 20240129029
- Publication date Apr 18, 2024
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf Keller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
REDIRECTION AND RETRY OF REGISTRATION
- Publication number 20240080787
- Publication date Mar 7, 2024
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf Keller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
RVAS NETWORK FUNCTION FOR HPLMN
- Publication number 20240080651
- Publication date Mar 7, 2024
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf KELLER
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ENSURING NETWORK CONTROL OF SIMULTANEOUS ACCESS TO NETWORK SLICES W...
- Publication number 20230388909
- Publication date Nov 30, 2023
- Telefonaktiebolaget LM Ericsson (publ)
- Peter Hedman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
VoWiFi SPLIT PDU SESSION HANDOVER
- Publication number 20230319621
- Publication date Oct 5, 2023
- Telefonaktiebolaget LM Ericsson (publ)
- Juying Gan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MOTOR VEHICLE HAVING A GAS CHANNEL BETWEEN A BATTERY SYSTEM AND AN...
- Publication number 20230286396
- Publication date Sep 14, 2023
- Dr. Ing. h.c.F. Porsche Aktiengesellschaft
- Ralf Keller
- B60 - VEHICLES IN GENERAL
Information Patent Application
NETWORK NODES, AND METHODS PERFORMED IN A WIRELESS COMMUNICATION NE...
- Publication number 20230284108
- Publication date Sep 7, 2023
- Telefonaktiebolaget LM Ericsson (publ)
- Afshin ABTIN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Communication Establishment
- Publication number 20230276316
- Publication date Aug 31, 2023
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf Keller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and Network Node for Home Charging of Offloaded Traffic at V...
- Publication number 20230208983
- Publication date Jun 29, 2023
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf Keller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
BATTERY FOR A DRIVE OF A MOTOR VEHICLE
- Publication number 20230187772
- Publication date Jun 15, 2023
- Dr. Ing. h.c.F. Porsche Aktiengesellschaft
- Daniel Fink
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
VOICE SERVICE HANDLING OF A UE IN A 5G SYSTEM
- Publication number 20230188574
- Publication date Jun 15, 2023
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf KELLER
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR INFORMATION SYNCHRONIZATION
- Publication number 20230180116
- Publication date Jun 8, 2023
- Telefonaktiebolaget LM Ericsson (publ)
- Chunbo WANG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FIRST NODE, SECOND NODE, THIRD NODE AND METHODS PERFORMED THEREBY F...
- Publication number 20230164659
- Publication date May 25, 2023
- Telefonaktiebolaget LM Ericsson (publ)
- Afshin ABTIN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MOTOR VEHICLE TRACTION BATTERY ARRANGEMENT
- Publication number 20230130699
- Publication date Apr 27, 2023
- Dr. Ing. h.c.F. Porsche Aktiengesellschaft
- Philipp Kellner
- B60 - VEHICLES IN GENERAL
Information Patent Application
NETWORK NODE, USER EQUIPMENT, AND METHODS PERFORMED IN A COMMUNICAT...
- Publication number 20230089553
- Publication date Mar 23, 2023
- Telefonaktiebolaget LM Ericsson (publ)
- Afshin Abtin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MAINTAINING N32 INTERFACE WHEN USING DIFFERENT RADIO ACCESS TECHNOL...
- Publication number 20230083873
- Publication date Mar 16, 2023
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf KELLER
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
BATTERY ARRANGEMENT
- Publication number 20230057595
- Publication date Feb 23, 2023
- Dr. Ing. h.c.F. Porsche Aktiengesellschaft
- Immanuel Vogel
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
BATTERY ARRANGEMENT FOR AN ELECTRIC VEHICLE
- Publication number 20220407164
- Publication date Dec 22, 2022
- Dr. Ing. h.c.F. Porsche Aktiengesellschaft
- Philipp Kellner
- B60 - VEHICLES IN GENERAL
Information Patent Application
Network Slicing Scalability Attributes
- Publication number 20220377655
- Publication date Nov 24, 2022
- Telefonaktiebolaget LM Ericsson (publ)
- Ralf Keller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
NETWORK SLICE BIT RATE ENFORCEMENT
- Publication number 20220369155
- Publication date Nov 17, 2022
- Telefonaktiebolaget LM Ericsson (publ)
- Peter HEDMAN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SHORT MESSAGE SERVICE (SMS) DELIVERY
- Publication number 20220360954
- Publication date Nov 10, 2022
- Telefonaktiebolaget LM Ericsson (publ)
- David CASTELLANOS ZAMORA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Ralf Keller

Person

Patents Grantslast 30 patents

First IMS node, first core network node, second IMS node, and metho...

Network node, user equipment, and methods performed in a communicat...

Battery device

Battery arrangement for an electric vehicle

Maintaining N32 interface when using different radio access technol...

Session establishment with a local serving network

Methods and apparatuses for implementing mobile terminating call

Drive battery

Short message service (SMS) delivery

Dynamic RSFP

Packet data connectivity control with volume charged service limita...

Method and network node for home charging of offloaded traffic at v...

Optimized handling of traffic management-initiated access change

Controlled handover from an incoming access network to a cellular a...

Internet protocol multimedia subsystem emergency calls for roaming...

Method, and nodes, for discovering services in a telecommunication...

Technique for preparing user equipment mobility

Battery arrangement for electric vehicle

Motor vehicle comprising a traction battery module

Internet protocol multimedia subsystem emergency calls for roaming...

Communication establishment

Core network node, user equipment and methods in a packet communica...

Device registration in a communications network

Access control in communications network comprising slices

Technique for preparing user equipment mobility

Battery module for a motor vehicle and method for the production th...

Network repository function in 5GC

Technique for preparing user equipment mobility

Method of establishing a voice over internet protocol, VoIP, call b...

Network slicing awareness in IP multimedia subsystem

Patents Applicationslast 30 patents

UE POLICIES PROVISIONING IN A COMMUNICATIONS NETWORK

METHODS FOR EXPOSURE OF DATA/ANALYTICS OF A COMMUNICATION NETWORK I...

DYNAMIC RETRIEVAL OF NSAC INFORMATION

Handling Discovery Requests in a Network

SLICE TRAFFIC MANAGEMENT

Distributed Network Edge Security Architecture

NETWORK SLICE QUOTAS IN THE PRESENCE OF INTERWORKING

First IMS Node, First Core Network Node, Second IMS Node, and Metho...

First IMS Node, First Core Network Node, Second IMS Node, and Metho...

NETWORK NODE, TERMINAL, AND METHODS THEREIN

REDIRECTION AND RETRY OF REGISTRATION

RVAS NETWORK FUNCTION FOR HPLMN

ENSURING NETWORK CONTROL OF SIMULTANEOUS ACCESS TO NETWORK SLICES W...

VoWiFi SPLIT PDU SESSION HANDOVER

MOTOR VEHICLE HAVING A GAS CHANNEL BETWEEN A BATTERY SYSTEM AND AN...

NETWORK NODES, AND METHODS PERFORMED IN A WIRELESS COMMUNICATION NE...

Communication Establishment

Method and Network Node for Home Charging of Offloaded Traffic at V...

BATTERY FOR A DRIVE OF A MOTOR VEHICLE

VOICE SERVICE HANDLING OF A UE IN A 5G SYSTEM

METHOD AND APPARATUS FOR INFORMATION SYNCHRONIZATION

FIRST NODE, SECOND NODE, THIRD NODE AND METHODS PERFORMED THEREBY F...

MOTOR VEHICLE TRACTION BATTERY ARRANGEMENT

NETWORK NODE, USER EQUIPMENT, AND METHODS PERFORMED IN A COMMUNICAT...

MAINTAINING N32 INTERFACE WHEN USING DIFFERENT RADIO ACCESS TECHNOL...

BATTERY ARRANGEMENT

BATTERY ARRANGEMENT FOR AN ELECTRIC VEHICLE

Network Slicing Scalability Attributes

NETWORK SLICE BIT RATE ENFORCEMENT

SHORT MESSAGE SERVICE (SMS) DELIVERY