Telefonaktiebolaget LM Ericsson (publ) patent applications published on October 12th, 2023

Summary of the patent applications from Telefonaktiebolaget LM Ericsson (publ) on October 12th, 2023

• Telefonaktiebolaget LM Ericsson (publ) has filed several patents recently related to managing communication in wireless networks, session management, backup communication devices, registration procedures, random-access messaging, Listen Before Talk (LBT) mechanisms, scheduling communication with user equipment, monitoring PDCCH candidates, and storing multiple NAS security contexts.

• Notable applications include:
• A technology for managing communication by temporarily pausing a user's device in a wireless network.
• Methods performed by a network node in a radio access network (RAN) to establish dual connectivity with a user equipment (UE) as a secondary node.
• A system and method for managing session requests from User Equipment (UE) in a network, including redundancy capable user plane and subscription information for redundant transmissions.
• A method for exchanging information between a main communication device and a backup communication device.
• A wireless device that connects to multiple networks and performs registration procedures, discarding information from the first set and storing information from the second set.
• A method for a wireless device to communicate with a network node using a random-access message and a physical uplink shared channel (PUSCH) payload.
• Systems and methods for changing the Listen Before Talk (LBT) mechanism in unlicensed networks to reduce collisions and interferences.
• A method for a network node to schedule communication with a user equipment (UE) in multiple serving cells without including a specific field for new data indicator (NDI).
• A method for a communication device to monitor PDCCH candidates and decode PDSCH on semi-persistent scheduling (SPS) resources.
• A user equipment (UE) capable of registering in various wireless communication networks and checking if its Universal Subscriber Identity Module (USIM) supports storing multiple Non-Access Stratum (NAS) security contexts.

Patent applications for Telefonaktiebolaget LM Ericsson (publ) on October 12th, 2023

Controlling Movement of a Virtual Character in a Virtual Reality Environment (18020785)

Inventor Alexander Hunt

Brief explanation

The abstract describes a method for controlling the movement of a virtual character in a virtual reality environment using a virtual reality device. The device includes a motion tracker that tracks the positions of the user in a physical movement area. The method involves obtaining the positions of the device in the physical movement area, determining the positions of the virtual character in the virtual reality environment based on the obtained positions, and controlling the movement of the virtual character by applying the determined positions in relation to a specific position in the physical movement area. The abstract also mentions that there are corresponding computer program products, apparatus, and virtual reality headsets associated with this method.

Abstract

A method for controlling movement of a virtual character in a virtual reality environment provided by a virtual reality device is disclosed. The virtual reality device comprising a motion tracker, wherein positions of the virtual character in the virtual reality environment correlate to positions of a user of the virtual reality device in a physical movement area. The method comprises obtaining positions of the virtual reality device in the physical movement area from the motion tracker, determining positions of the virtual character in the virtual reality environment based on the obtained positions of the virtual reality device in the physical movement area, and controlling movement of the virtual character in the virtual reality environment by applying the determined positions in a movement of the virtual character in relation to a position C in the physical movement area. Corresponding computer program product, apparatus, and virtual reality headset are also disclosed.

In-Network Control of Actuators for Robotic Arms (17926364)

Inventor Csaba Györgyi

Brief explanation

The abstract describes a circuit that is placed between a control server and actuators, specifically those associated with a robotic arm. This circuit, which can be a programmable switch or router, has the ability to control the velocity of the actuators in real-time. It also performs other functions such as routing, packet forwarding, and firewall protection.

Abstract

A packet forwarding circuit (), such as a programmable switch or router, for example, is disposed between a control server () and one or more actuators () associated with a robotic arm (), for example. The packet forwarding circuit is configured to perform real-time velocity control of the one or more actuators in addition to other functionalities that it normally performs, such as routing, packet forwarding, and firewall protection.

ASSISTED GLOBAL NAVIGATION SATELLITE SYSTEM ALGORITHM ENHANCEMENT WHEN NO SERVING CELL IS FOUND (18042006)

Inventor Kai WANG

Brief explanation

The abstract describes an apparatus and methods for positioning services. In one scenario, a wireless device sends a request for assistance data to a location management network node. The request includes information about neighboring cells. The wireless device then receives assistance data, which includes satellite measurement information based on the neighboring cell information. In another scenario, the location management network node receives a request for assistance data from a wireless device and sends back assistance data, including satellite measurement information based on the neighboring cell information.

Abstract

Apparatus and methods related to positioning services. In one embodiment, a wireless device (, ) sends a request assistance data message comprising at least one neighbor cell identification, ID, to a location management network node (); and receive a provide assistance data message comprising assistance data, the assistance data including satellite measurement information for the wireless device and the satellite measurement information being based at least in part on the at least one neighbor cell ID. In one embodiment, a location management network node () is configured to receive a request assistance data message comprising at least one neighbor cell ID from a wireless device (, ); and send a provide assistance data message comprising assistance data, the assistance data including satellite measurement information for the wireless device (, ) and the satellite measurement information being based at least in part on the at least one neighbor cell ID.

WATERMARK PROTECTION OF ARTIFICIAL INTELLIGENCE MODEL (18016468)

Inventor N Hari Kumar

Brief explanation

This abstract describes a computer-based method for protecting an artificial intelligence (AI) model from tampering. The method involves determining when the AI model has reached a stable state (convergence) and then identifying a set of baseline parameters for that stable AI model. The method also includes generating a unique identifier (watermark) for the AI model by applying certain transformations to each baseline parameter. This watermark is external to the AI model itself and helps in detecting any tampering attempts.

Abstract

A computer-implemented model for protecting an artificial intelligence (AI) model from tampering is provided. The method includes determining a convergence of the AI model. The method further includes, responsive to the determining, identifying a set of baseline parameters of the converged AI model. The method further includes generating a first watermark for the converged AI model based on applying one or more transformations to each baseline parameter from the set of baseline parameters, wherein the first watermark comprises a value external to the converged AI model.

METHODS AND SYSTEMS FOR UPDATING MACHINE LEARNING MODELS (18027061)

Inventor Johan HARALDSON

Brief explanation

The abstract describes a method and system for updating machine learning (ML) models. The method is performed by a client computing device. Initially, a first ML model is obtained, which is designed to take input data and generate an output data set. Then, a second ML model is trained using the input data set and the first output data set. The result of this training is a third ML model. Finally, the third ML model is deployed, indicating that it is ready for use.

Abstract

Methods () and systems () for updating ML models. The method is performed by a client computing device (()). In one aspect, the method comprises obtaining (s) a first machine learning (ML) model. The first ML model is configured to receive input data set and to generate first output data set. The method further comprises training (s) a second ML model  based at least on the input data set and the first output data set, obtaining (s), as a result of training the second ML model, a third ML model, and deploying the third ML model.

GENERATION OF A 3D POINT CLOUD OF A SCENE (18023008)

Inventor Quinten DEKKER

Brief explanation

This abstract describes a method for creating a 3D representation of a scene using digital images. The method involves segmenting the images into smaller sections and determining depth and normal vectors for each segment. These vectors are used to estimate a 3D plane for each segment, and ultimately, a 3D point cloud of the entire scene is generated by combining all the depth and normal vectors from the pixels in the images.

Abstract

A method for generating a 3D point cloud of a scene is performed by an image processing device. The method obtains digital images depicting the scene. Each digital image is composed of pixels. The method includes segmenting each of the digital images into digital image segments. The method includes determining a depth vector and a normal vector per each of the digital image segments by applying MVS processing to a subset of the pixels per each digital image segment. The method includes forming a map of depth vectors and normal vectors per each pixel in the digital images by, based on the determined depth and normal vectors per each of the digital image segments, estimating a 3D plane per digital image segment. The method includes generating the 3D point cloud of the scene as a combination of all the maps of depth vectors and normal vectors per each pixel in the digital images.

RADIO FREQUENCY POWER DIVIDER AND CIRCUIT INCLUDING THE SAME (18024096)

Inventor Xiaoqin Zhang

Brief explanation

The present disclosure describes a power divider and a circuit that includes this power divider. The power divider consists of at least two branches, with the first branch connected between a first port and a second port, and the second branch connected between the first port and a third port. The first branch includes a transmission line for power dividing and an impedance matching structure connected to the second port. Similarly, the second branch includes a transmission line for power dividing and an impedance matching structure connected to the third port. The power divider reduces the lengths and types of transmission lines used, resulting in a more simplified design.

Abstract

The present disclosure relates to a power divider and a circuit including the same. The power divider may comprise: at least two branches; the at least two branches comprise a first branch coupled between a first port and a second port; and a second branch coupled between the first port and a third port; the first branch comprises a first transmission line for power dividing function coupled to the first port, and a first impedance matching structure coupled to the second port; and the second branch comprises a second transmission line for power dividing function coupled to the first port, and a second impedance matching structure coupled to the third port. According to embodiments of the present disclosure, lengths and/or even types of the transmission lines in the power divider may be reduced.

DIELECTRIC FILTER, AND AU, RU OR BS HAVING THE SAME (18022229)

Inventor Yuhua Xiao

Brief explanation

The abstract describes a dielectric filter that has two radio frequency (RF) passbands. It also includes a radio unit, an antenna unit, and a base station. The dielectric filter is made up of a body with multiple resonators, including a first resonator, a second resonator, and a common resonator. The common resonator is connected to the first resonator to create the first RF passband and connected to the second resonator to create the second RF passband.

Abstract

A dielectric filter with a first radio frequency (RF) passband and a second RF passband, a radio unit, an antenna unit and a base station are disclosed. According to an embodiment, the dielectric filter () comprises a body () with a plurality of resonators (, , , , ) including a first resonator (), a second resonator () and a common resonator (). The common resonator () is coupled under its first resonance mode to the first resonator () to provide the first RF passband, and is coupled under its second resonance mode to the second resonator () to provide the second RF passband.

Base Station (18022547)

Inventor Tao Xie

Brief explanation

The abstract describes a base station that consists of a multi-function board, a radome, and at least one antenna element. The radome is designed to cover the multi-function board, while the antenna element is positioned between the multi-function board and the radome. The multi-function board is capable of integrating with various functions, including a radio board, an EMC cover, an AC board, an antenna reflector, and an antenna board.

Abstract

The present disclosure provides a base station. The base station includes a multi-function board, a radome and at least one antenna element. The radome is configured to cover the multi-function board. The at least one antenna element is provided between the multi-function board and the radome. The multi-function board is configured to integrate with at least two of functions of a radio board, an EMC cover, an AC board, an antenna reflector, and an Antenna board.

Multi-Band Equalizers (18334893)

Inventor Henrik Sjöland

Brief explanation

The abstract describes the concept of on-chip multi-band equalizers used to adjust the signal strength of a receiver that receives multi-band frequency signals. These equalizers consist of multiple tapped LC resonators connected in series. The tapped resonators can be either capacitive or inductive, and the frequency and gain of the desired frequency bands can be adjusted by tuning the capacitances of programmable capacitors or selecting the tapped-out terminals of the inductors. The multi-band equalizer is typically placed between two amplifiers in the receiver and can be connected to a signal node.

Abstract

On-chip multi-band equalizers for adjusting signal strength for a receiver receiving multi-band frequency signals are provided. An example multi-band equalizer comprises multiple series connected tapped LC resonators. The tapped LC resonator may be capacitive tapping or inductive tapping, where both frequency and gain of the frequency bands of interest may be programmed by tuning the capacitances of the programmable capacitors and/or selecting the tapped-out terminals of the inductors. The multi-band equalizer may be connected to a signal node, for instance between two amplifiers in the receiver.

ULTRA-WIDEBAND NON-REFLECTIVE FRONT-END IN MULTIBAND SYSTEM (18019432)

Inventor Xue HUANG

Brief explanation

The abstract describes a network node in a communication network that can split a wideband signal into multiple smaller sub-bands using a wideband multiplexer. The network node can then send a portion of one of these sub-bands through a wideband circulator and a second multiplexer to either an antenna or processing circuitry.

Abstract

A network node operating in a communication network can divide a wideband signal into a plurality of sub-bands using a wideband multiplexer. The network node can further pass a portion of a sub-band of the plurality of sub-bands through a wideband circulator of the network node and a second multiplexer to an antenna or processing circuitry.

Determination of a Preferred Beam in a Cellular Communication Network Employing Signal Beam-Forming (18132254)

Inventor Andreas Nilsson

Brief explanation

This abstract describes a method for determining the preferred beam of a wireless communication device in a cellular network. The network node, which supports multiple beams, sends a message indicating the beam power setting to the device and transmits measurement signals. The device then determines its preferred beam based on these signals and the beam power setting. The abstract also mentions corresponding methods, arrangements, network nodes, devices, networks, and computer program products.

Abstract

A method for acquiring an indication of a preferred beam of a wireless communication device is disclosed. The method is performed in a network node of a cellular communication network. The network node is adapted to support a plurality of beams of a signal beam-forming scheme and to communicate with the wireless communication device using at least one beam of the plurality of beams. A message indicative of the beam power setting is transmitted to the wireless communication device. Measurement signals are also transmitted. A report indicative of the preferred beam is received from the wireless communication device. The preferred beam is determined by the wireless communication device based on the measurement signals and the beam power setting. Corresponding methods for the wireless communication device, as well as corresponding arrangements, network node, wireless communication device, cellular communication network, and computer program products are also disclosed.

EARTH-FIXED CELL ID FOR NON-TERRESTRIAL NETWORKS (18040717)

Inventor Stefan Rommer

Brief explanation

The abstract describes a method performed by a network node, which is a part of a non-geostationary satellite network. The method involves mapping a cell identifier associated with the network node to a cell identifier associated with a specific geographical coverage area of a beam transmitted by the satellite. This mapped cell identifier is then broadcasted to wireless devices within that geographical coverage area. Additionally, the network node transmits the original cell identifier to a core network node as part of location information for one of the wireless devices within the coverage area.

Abstract

According to some embodiments, a method performed by a network node comprises: mapping a first cell identifier associated with the network node to a second cell identifier associated with a first geographical coverage location of a beam transmitted by the non-geostationary satellite; broadcasting the first cell identifier to one or more wireless devices in the first geographical coverage location; and transmitting the second cell identifier to a core network node as part of location information for one of the one or more wireless devices in the first geographical coverage location.

UE SELECTION FOR UE AIDED ANTENNA CALIBRATION (18022768)

Inventor Shaohua Li

Brief explanation

This abstract describes a method for base station antenna calibration in a cellular communications system. The method involves selecting certain User Equipments (UEs) to assist the base station with antenna calibration. The selection is based on criteria such as UE channel state information, uplink channel characteristics, UE capability, UE traffic information, or a combination of these factors. The base station then obtains antenna calibration assistance information from the selected assistant UEs, which is used for antenna calibration.

Abstract

Embodiments of the present disclosure provide methods, apparatuses, and computer products for base station antenna calibration. A method is implemented in a base station for a cellular communications system. The method includes selecting, from a plurality of User Equipments, UEs, assistant UEs to assist the base station with antenna calibration, wherein selecting the assistant UEs is based upon criteria that includes UE channel state information, CSI, from the UEs; one or more uplink channel characteristics of an uplink channel from the UEs to the base station; a UE capability of the UEs, UE traffic information related to the UEs; and any combination thereof. A further step is obtaining antenna calibration assistance information from the assistant UEs, the antenna calibration assistance information being information that is used by the base station for antenna calibration.

OVER-THE-AIR BASED ESTIMATION OF PHASE ACCURACY OF A RADIO TRANSCEIVER DEVICE (18023013)

Inventor Lars Persson

Brief explanation

This abstract describes a method for estimating the phase accuracy of a radio transceiver device using over-the-air (OTA) measurements. The method involves obtaining phase relation estimates between different branches of the transceiver device at various positions relative to another transceiver device. These estimates are obtained from wireless signal measurements between the two devices. The method then calculates an average phase relation for a specific pair of transceiver branches by averaging the obtained estimates over all the positions. This average phase relation represents the phase accuracy of the transceiver device.

Abstract

There is provided mechanisms for OTA based estimation of phase accuracy of a first radio transceiver device. A method is performed by a controller. The method comprises obtaining, per each position in a sequence of positions of a second radio transceiver device relative the first radio transceiver device, a phase relation estimate between transceiver branches of the first radio transceiver device. Each phase relation estimate is obtained from measurements on a signal wirelessly transmitted between the first radio transceiver device and the second radio transceiver device. The method comprises estimating an average phase relation for at least one pair of the transceiver branches of the first radio transceiver device by averaging the obtained phase relation estimates over all the positions in the sequence of positions. The phase accuracy of the first radio transceiver device is represented by the average phase relation for the at least one pair of the transceiver branches.

Methods and Apparatuses for Windowing-Based Channel Filtering in an OFDM-Based Communication Network (17914909)

Inventor Tore André

Brief explanation

The abstract describes a method and apparatus for handling signals in a communication network. The method involves receiving a signal that includes both a payload signal and an interference signal. The payload signal is in a specific frequency band, while the interference signal is in a different frequency band. The method includes separating the payload signal from the interference signal using a filter. The separated signals are then processed using a time window that is the same width as an OFDM symbol. This processing helps to achieve an output signal that includes the payload signal and a time-windowed interference signal, or a second output signal that includes the interference signal and a time-windowed payload signal. The windowed signals are attenuated by the FFT (Fast Fourier Transform) to ensure that the desired signal is not distorted.

Abstract

Disclosed is a method and an apparatus for handling signals in an OFDM-based communication network () received at a receiver (). The method comprises obtaining a signal in time domain, the signal comprising a payload signal sent from a transmitter () towards the receiver () as well as an interference signal, the payload signal residing in a first frequency band and the interference signal residing in a second frequency band outside the first frequency band. The method further comprises separating the payload signal from the interference signal using a filter, and processing () the payload signal with a time window (W, W), or the separated interference signal with a time window, (W, W), or processing both the separated payload signal with a window (W, W) and the obtained signal with a window (W, W), the window (W, W, W) being substantially an OFDM symbol wide, so as to achieve a output signal/first output signal comprising the payload signal and a time-windowed interference signal and/or a second output signal comprising the interference signal and a time-windowed payload signal. The windowed signals become attenuated by the FFT so that the wanted signal are achieved undisturbed.

COEXISTENCE OF PTRS WITH NR REFERENCE SIGNALS (18020046)

Inventor Mehrnaz Afshang

Brief explanation

The abstract describes a method for improving the quality of a wireless signal received by a wireless device. The method involves receiving a wireless signal that includes a reference signal on some of the subcarriers. The device then calculates a filter to reduce interference between different subcarriers based on the reference signal and applies this filter to the received signal to improve its quality.

Abstract

According to some embodiments, a method performed by a wireless device comprises receiving a wireless signal R over all subcarriers allocated to the wireless device. The signal R comprises a phase tracking reference signal (PT-RS) on a subset of subcarriers allocated to the wireless device. The method further comprises computing a de-inter-carrier interference (ICI) filter based on a cross correlation of the PT-RS and one or more additional subcarriers and applying the de-ICI filter to the received signal R to generate a de-ICI filtered signal.

PROPAGATION DELAY COMPENSATION (18032850)

Inventor Zhenhua ZOU

Brief explanation

The abstract describes a method performed by a User Equipment (UE) in a wireless communication system. The UE receives a configuration message that contains information about a positioning reference signal (PRS) resource configuration. The UE also receives a trigger message from a base station, which includes information to identify the PRS resource configuration. After receiving the trigger message, the UE receives a PRS signal transmitted by the base station according to the PRS resource configuration. The PRS signal is either semi-persistently or a-periodically transmitted downlink reference signal.

Abstract

A method () performed by a UE. The method includes the UE receiving a configuration message that comprises positioning reference signal (PRS) resource configuration information defining a PRS resource configuration. The method also includes the UE receiving a trigger message transmitted by a base station, the trigger message comprising information for identifying the PRS resource configuration. The method also includes, after receiving the trigger message, the UE receiving a PRS transmitted by the base station according to the PRS resource configuration, wherein The PRS is a semi-persistently or an a-periodically transmitted DL reference signal.

METHOD AND APPARATUS FOR MULTICAST COMMUNICATION (18012678)

Inventor Rui Fan

Brief explanation

The present disclosure describes a method for multicast communication. In this method, a terminal device receives both multicast and unicast traffic from a network node. The terminal device then sends feedback to the network node based on a feedback codebook. The feedback codebook is determined by two types of codebooks: one for multicast traffic and another for unicast traffic. This method allows for efficient and flexible implementation of hybrid automatic repeat request feedback for different types of traffic, such as multicast and unicast.

Abstract

Various embodiments of the present disclosure provide a method for multicast communication. The method which may be performed by a terminal device comprises receiving a multicast traffic and/or a unicast traffic from a network node. The method further comprises transmitting feedback for the multicast traffic and/or the unicast traffic to the network node, according to a feedback codebook. The feedback codebook is based at least in part on a first feedback codebook type for the multicast traffic and/or a second feedback codebook type for the unicast traffic. According to various embodiments of the present disclosure, hybrid automatic repeat request feedback may be implemented efficiently and flexibly for different traffics such as multicast and unicast traffics.

MULTI-NUMEROLOGY FRAME STRUCTURE FOR NR OPERATION IN MM-WAVE FREQUENCY BANDS (18327356)

Inventor Jung-Fu CHENG

Brief explanation

The abstract describes a method, system, and apparatus for a network node to communicate with a wireless device. The network node has processing circuitry that can dynamically indicate a mixed numerology to the wireless device. This mixed numerology consists of a first numerology for a data channel and a second numerology for a control channel. The first numerology is different from the second numerology.

Abstract

A method, system and apparatus are disclosed. According to one or more embodiments, a network node configured to communicate with a wireless device is provided. The network node includes processing circuitry configured to dynamically indicate a mixed numerology to the wireless device for implementation where the mixed numerology corresponds to a first numerology for a data channel and a second numerology for a control channel, the first numerology being different from the second numerology.

DETERMINING CONFLICTS BETWEEN KPI TARGETS IN A COMMUNICATIONS NETWORK (18026920)

Inventor Alessandro PREVITI

Brief explanation

The abstract describes a computer method used in a communications network. It involves obtaining Key Performance Indicator (KPI) targets for various KPIs in the network and using a graph-based machine learning process to determine relationships between these KPIs. These relationships explain how changing the network configuration to affect one KPI can impact another KPI. The method also identifies conflicts between the KPI targets using these relationships.

Abstract

A computer implemented method performed by a node in a communications network comprises obtaining Key Performance Indicator, KPI, targets for a plurality of KPIs, in the communications network, and determining relationships between the KPIs using a model trained using a graph-based machine learning process. Each relationship describes a manner in which changing a network configuration to alter a first one of the plurality of KPIs affects a second one of the plurality of KPIs. The method then comprises determining one or more conflicts between the KPI targets, using the relationships.

QUANTUM COMPUTING DEVICE FOR DETERMINING A NETWORK PARAMETER (18018537)

Inventor Mohan Saravanan

Brief explanation

This abstract describes a quantum computing device and a method for determining a network parameter of a network of nodes. The method involves manipulating quantum states of qubits (quantum bits) in the device. The qubits are organized into two registers, each in an equal superposition state. The qubits in the first register influence the qubits in the second register using operators that represent the network. The method includes performing a first measurement on the qubits in the first register to estimate a principal eigenvalue. Then, a second measurement is performed on the qubits in the second register, and the results of this measurement, corresponding to the principal eigenvalue, are used to calculate the network parameter.

Abstract

Embodiments described herein relate to a quantum computing device, methods and apparatus for determining a network parameter of a network of nodes The method comprises manipulating quantum states of qubits of the quantum computing device, the qubits arranged into a first and a second register each in equal superposition, the qubits of the first register conditionally influencing the qubits of the second register using operators representing the network. The method performs a first measurement on the qubits of the first register to estimate a principal eigenvalue, then performs a subsequent second measurement on the qubits in the second register, and uses the results of the second measurement corresponding to the principal eigenvalue to calculate the network parameter.

Methods and Apparatuses for Providing Quality of Service Handling of User Traffic Transmitted by a Content Provider (18022293)

Inventor Miguel Angel Muñoz De La Torre Alonso

Brief explanation

The abstract describes methods and devices for managing the quality of service (QoS) of user traffic from a specific content provider. The method involves receiving a request from the content provider, which includes information about the QoS handling service they offer.

Abstract

Embodiments described herein relate to methods and apparatuses for providing quality of service handling of user traffic transmitted by a first content provider. A method in a first network function comprises receiving an onboarding request from the first content provider, wherein the onboarding request comprises information relating to a QoS handling service that the first content provider supports.

Technique for Determining a Safety-Critical State (18022512)

Inventor Emrah Tomur

Brief explanation

This abstract describes a technique for identifying a safety-critical state in a cyber-physical system (CPS). The technique involves a safety component of the CPS collecting sensor data from multiple sensors within the system. This sensor data represents the current state of the CPS. The safety component also obtains one or more intent-based safety policies, which are predefined safety rules related to the operational state of the CPS. The safety component then compares the sensor data with the intent-based safety policies to determine if the CPS is in a safety-critical state or not.

Abstract

A technique for determining a safety-critical state in a cyber-physical system, CPS, is disclosed. A method implementation of the technique is performed by a safety component of the CPS and comprises obtaining (S) combined sensor data from a plurality of sensors available in the CPS, the combined sensor data being indicative of a current state of the CPS, obtaining (S) at least one intent-based safety policy, wherein an intent-based safety policy corresponds to a safety policy indicative of a predefined safety-related intent concerning an operational state of the CPS, and checking (S) the combined sensor data against the at least one intent-based safety policy to determine whether or not the CPS is in a safety-critical state.

METHODS PROVIDING MANAGEMENT OF EMERGENCY SESSIONS AND RELATED DEVICES AND NODES (18203523)

Inventor Monica Wifvesson

Brief explanation

This abstract describes a method for determining whether to activate security measures for a wireless device's user plane (UP) session. The method involves receiving a request to establish a UP session for the device and checking if the request is related to an emergency session or if certain security measures are not applied to a control plane (CP) session associated with the device. If either of these conditions is met, it is determined that the UP session should be configured without activating integrity and/or confidentiality protection. A UP security policy is then provided to a radio access network (RAN) node for the device, indicating that the UP session should be configured without activating these security measures.

Abstract

A method is provided to operate a CN node to determine UP security activation. A UP session establishment request is obtained for a wireless device. An indication is obtained that the UP session establishment request is associated with an emergency session and/or that null ciphering and/or null integrity protection are applied to a CP associated with a CP session for the wireless device. It is determined that a UP should be configured for the UP session without activating integrity and/or confidentiality protection for the UP based on the indication. A UP security policy is provided to a RAN node associated with the wireless device, wherein the UP security policy indicates to configure the UP for the UP session without activating integrity and/or confidentiality protection based on determining that a UP should be configured for the UP session without activating integrity and/or confidentiality protection.

METHODS AND NODES FOR DEACTIVATING SERVER NAME INDICATION, SNI, ENCRYPTION IN A TELECOMMUNICATION NETWORK (18023765)

Inventor Miguel Angel MUÑOZ DE LA TORRE ALONSO

Brief explanation

The abstract describes a method for disabling Server Name Indication (SNI) encryption in a telecommunication network. The method involves a Domain Name System (DNS) server receiving a DNS query from a User Equipment (UE) containing a domain name to be converted to an IP address. The DNS server determines that SNI encryption should be deactivated for future traffic related to the domain name. The DNS query is then forwarded to an external DNS server, including a request to disable SNI encryption. The DNS server receives a DNS answer from the external DNS server, which includes the converted IP address and is free from encryption keys for SNI encryption. Finally, the DNS server forwards the DNS answer to the UE, ensuring that the UE is unable to encrypt SNI in subsequent traffic.

Abstract

A method for deactivating Server Name Indication, SNI, encryption in a telecommunication network, wherein said telecommunication network comprises a Domain Name System, DNS, server, said method comprising the steps of receiving, by said DNS server, from a User Equipment, UE, a DNS query comprising a Domain Name to be converted to an Internet Protocol, IP, address, determining, by said DNS server, that SNI encryption is to be deactivated for subsequent traffic associated with said Domain Name, forwarding, by said DNS server, said DNS query to an external DNS server, wherein said DNS query comprises said Domain Name and a request for deactivating SNI encryption, receiving, by said DNS server, from said external DNS server, a DNS answer, wherein said DNS answer comprises said converted IP address and wherein said DNS answer is free from encryption keys for encrypting SNI and forwarding, by said DNS server, said DNS answer comprising said converted IP address to said UE, wherein said DNS answer is free from encryption keys such that said UE is not able to encrypt said SNI in said subsequent traffic.

SECURE TRANSFER OF POSITIONING INTEGRITY KPI (18012310)

Inventor Ritesh Shreevastav

Brief explanation

This abstract describes a system and method for securely transmitting positioning integrity Key Performance Indicators (KPIs) and related information. A network node provides a key that can be used to decode positioning integrity assistance information. A wireless device can receive encrypted positioning integrity assistance information and use the key to decrypt the information. The device can then use this decrypted information to perform positioning methods accurately and securely.

Abstract

Systems and methods for managing the secure transmission of positioning integrity KPIs and associated information are provided. A network node provides a key configured to decode positioning integrity assistance information. A wireless device can receive encrypted positioning integrity assistance information and use the key to decrypt the information and perform positioning method(s) in accordance with the decrypted positioning integrity assistance information.

Technique for Header Integrity in a Relayed Radio Communication (18021080)

Inventor Antonino Orsino

Brief explanation

This abstract describes a technique for protecting and validating the header integrity in a relayed radio communication. The technique involves adding a token to the header of a data unit (DU) at the adaptation layer of the transmitter. This token includes a local temporary identifier (ID) of the remote radio device. The integrity-protected header is then attached to the DU obtained from the transparent layer and transmitted to the receiver.

Abstract

A technique for protecting and validating header integrity in a relayed radio communication is described. As to a method aspect of the technique, integrity of a header of a data unit, DU, is protected at an adaptation layer for a relayed radio communication between a remote radio device (-RM) and a radio access network, RAN (-NN), or a further radio device (-RM), through a relay radio device (- RL). A DU is obtained at a transmitter, TX, from a transparent layer, wherein the relayed radio communication uses a protocol stack comprising the adaptation layer below the transparent layer that is relayed transparently at the relay radio device (-RL). The integrity of the header of the DU is protected at the adaptation layer of the TX by including a token in the header of the DU at the adaptation layer, the token comprising a local temporary identifier, ID, of the remote radio device (-RM), wherein the integrity-protected header is attached to the DU obtained from the transparent layer. The DU comprising the integrity-protected header is transmitted from the TX to a receiver, RX.

Systems and Methods for Prioritizing Channel State Information Reports (18134938)

Inventor Sebastian Faxér

Brief explanation

The abstract describes a method used by a wireless device to prioritize the transmission of channel state information reports. These reports are scheduled for transmission in separate slots, but if they would be transmitted in the same slot, the device determines to transmit only a portion of the reports along with acknowledgement information indicating the success or failure of data reception. The wireless device then transmits this portion of channel state information and acknowledgement information in that slot. The abstract also mentions that there are methods performed by a base station and a wireless device, but does not provide further details.

Abstract

There is provided a method performed by a wireless device for prioritizing channel state information reports. The method comprises determining to transmit a portion of a plurality of channel state information reports that are each separately scheduled for transmission responsive to determining that the reports would be transmitted in a same slot with acknowledgement information indicating whether data was successfully or unsuccessfully received by the wireless device. The method further comprises transmitting, by the wireless device in that slot, that portion of the channel state information and the acknowledgement information. There is also provided a method performed by a base station, a wireless device and a base station.

METHODS AND APPARATUS FOR DATA VOLUME COUNTING (18019272)

Inventor Zhang ZHANG

Brief explanation

The abstract describes methods and devices that assist in direct device-to-device (D2D) communications. Specifically, it explains a method performed by a relay user equipment (UE) where the relay UE monitors the amount of data traffic it is handling. It then determines the size of the data traffic volume that is related to itself (the relay UE) and the size of the data traffic volume that is related to a remote UE connected to it.

Abstract

Methods and apparatus supportive to D2D communications are disclosed. A method performed by a relay user equipment, relay UE, comprises: monitoring a data traffic volume at the relay UE; and determining a size of a first portion of the data traffic volume related to the relay UE, and a size of a second portion of the data traffic volume related to a remote UE that is connected to the relay UE.

PROVIDING DATA IN A PDCP MESSAGE (18024799)

Inventor Gunner MILDH

Brief explanation

The abstract describes a method and apparatus for a User Equipment (UE) to provide data to a higher layer without using a specific process called PDCP reordering. The UE receives an indication to bypass the PDCP reordering process for a received PDCP message and directly provides the data in that message to the higher layer.

Abstract

Methods and apparatus are provided. In an example aspect, a method in a User Equipment (UE) of providing data in a PDCP message to a layer above a PDCP layer is provided. The method includes receiving an indication that a PDCP message received at the UE should bypass a PDCP reordering process, and providing data in the PDCP message to a layer above a PDCP layer without using the PDCP reordering process.

HANDLING OF BUFFERED TRAFFIC DURING INTER-CU MIGRATION OF AN ANCESTOR INTEGRATED ACCESS BACKHAUL (IAB) NODE (18017756)

Inventor Oumer Teyeb

Brief explanation

The abstract describes methods performed by a network node in an Integrated Access Backhaul (IAB) network. The network node is the ancestor of another network node and is responsible for handling data associated with the second network node. The methods involve determining when the second network node is migrating from one centralized unit (CU) to another CU. Once this migration is detected, the first network node modifies how it handles buffered data related to the second network node. This includes handling uplink (UL) data buffered at the first network node, downlink (DL) data buffered at the first network node, and UL data buffered at child nodes of the first network node. The abstract also mentions that there are complementary methods for the first CU and that network nodes in the IAB network are configured to perform these methods.

Abstract

Embodiments include methods performed by a first network node arranged as an ancestor node of a second network node in an Integrated Access Backhaul (IAB) network. Such methods include determining that the second network node is migrating from a first centralized unit (CU) to a second CU and, based on determining that the second network node is migrating from the first CU to the second CU, performing modified handling of buffered data associated with the second network node, including at least one of the following: uplink (UL) data buffered at the first network node, downlink (DL) data buffered at the first network node, and UL data buffered at one or more child nodes of the first network node. Other embodiments include complementary methods for a first CU, as well as network nodes (e.g., IAB nodes, distributed units, CUs) configured to perform such methods.

HANDLING REGISTRATIONS OF A USER EQUIPMENT IN DIFFERENT COMMUNICATION NETWORKS (18028167)

Inventor Prajwol Kumar Nakarmi

Brief explanation

The abstract describes a user equipment (UE) that is capable of registering in various wireless communication networks. The UE can check if its Universal Subscriber Identity Module (USIM) supports storing multiple Non-Access Stratum (NAS) security contexts associated with different wireless networks. It does this by obtaining information about the USIM's capabilities and then determining if it can store the multiple NAS security contexts.

Abstract

A user equipment (“UE”) can handle registrations of the UE in different wireless communication networks. The UE can obtain information indicating whether a Universal Subscriber Identity Module (“USIM”) of the UE supports storing multiple different Non-Access Stratum (“NAS”) security contexts of the UE associated with the different wireless communication networks. The UE can further determine whether the USIM supports storing the multiple different NAS security contexts of the UE associated with the different wireless communication networks based on the obtained information.

METHODS PROVIDING DOWNLINK CONTROL INFORMATION AND DOWNLINK DATA USING OVERLAPPING RESOURCES AND RELATED COMMUNICATION DEVICES AND RADIO ACCESS NETWORK NODES (18010568)

Inventor Bikramjit SINGH

Brief explanation

This abstract describes a method for operating a communication device in a communication network. The device is equipped with resources for monitoring PDCCH candidates, which partially overlap with resources used for semi-persistent scheduling of a PDSCH. The method involves monitoring PDCCH candidates on the configured resources. If a PDCCH is successfully decoded, the method proceeds to decode a PDSCH on the SPS PDSCH resources, with the PDSCH rate-matched around the PDCCH resource. If a PDCCH is not successfully decoded, the method directly decodes the PDSCH on the SPS PDSCH resources. The abstract also mentions the existence of a communication device, a radio access network node, and a method related to them.

Abstract

A method of operating a communication device in a communication network is provided. The communication device is configured with resources for monitoring physical downlink channel, PDCCH, candidates, where the resources at least in part overlaps with resources configured for semi-persistent scheduling, SPS, of a physical downlink shared channel, PDSCH. The method includes monitoring PDCCH candidates on the configured PDCCH resources. If a PDCCH is successfully decoded for the configured PDCCH resources, the method includes decoding a PDSCH, on the resources configured for SPS PDSCH, where the PDSCH is rate-matched around the PDCCH resource according to the PDCCH decoding. If a PDCCH is not successfully decoded, the method includes decoding PDSCH on the resources configured for SPS PDSCH. There is also presented a communication device, a radio access network node and a method therefore.

DATA INDICATOR FOR DCI SCHEDULING MULTIPLE CELLS (18018620)

Inventor Ajit NIMBALKER

Brief explanation

This abstract describes a method for operating a network node in a wireless communication system. The network node configures a message called downlink control information (DCI) to schedule communication with a user equipment (UE) in multiple serving cells. The DCI message does not include a specific field called new data indicator (NDI) for at least one of the serving cells. The network node then transmits this DCI message to the UE. On the UE side, it receives the DCI message which schedules communication in multiple serving cells. The DCI message also does not include an explicit NDI field for a specific serving cell. In response, the UE determines the NDI value associated with the scheduled communication for that serving cell or identifies if there is a new data transmission scheduled for that serving cell.

Abstract

A method of operating a network node in a wireless communication system includes configuring a downlink control information (DCI) message that schedules uplink or downlink communications with a user equipment (UE) in a plurality of serving cells. The DCI message does not include an explicit new data indicator (NDI) field for at least one of the serving cells scheduled by the DCI message. The network node transmits the DCI message to the UE. A method performed by a UE includes receiving a DCI message that schedules uplink or downlink communications in a plurality of serving cells. The DCI message does not include an explicit NDI field for a serving cell scheduled by the DCI message. In response, the UE determines an NDI value associated with scheduled communications for the serving cell or determines that the scheduled communications for the serving cell contains a new data transmission.

SYSTEMS AND METHODS FOR CHANGING LBT FOR UNLICENSED NETWORKS (18021192)

Inventor Tai Do

Brief explanation

This abstract describes systems and methods for changing the Listen Before Talk (LBT) mechanism in unlicensed networks. The method involves a wireless device receiving signaling from a base station indicating whether to use LBT for transmissions. Based on this signaling, the device determines whether or not to use LBT and transmits accordingly. The approach aims to reduce collisions and interferences in network performance by adaptively using LBT. It defines two simple modes, LBT and No LBT, to simplify the process and minimize signaling overhead and specification impact.

Abstract

Systems and methods for changing Listen Before Talk (LBT) for unlicensed networks are provided. In some embodiments, a method performed by a wireless device includes: receiving signaling from a base station that indicates when the wireless device uses LBT for transmissions; determining, based on the received signaling, whether or not to use LBT for transmissions; and transmitting based on the determination whether or not to use LBT for transmissions. Some embodiments provide a low complexity (in term of signaling overhead and specification impact) approach of adaptively using LBT mechanism by defining two simple modes for LBT operation (LBT and No LBT modes). Some embodiments reduce the probability of simultaneous transmissions that cause collisions, by using LBT mode, in environments and circumstances where network performance suffers from collision and/or interferences.

BEAM INDICATION IN RANDOM ACCESS (18041156)

Inventor Jan CHRISTOFFERSSON

Brief explanation

The abstract describes a method used by a wireless device to communicate with a network node in a communication network. The wireless device sends a random-access message, which includes a payload called a physical uplink shared channel (PUSCH), as part of a random-access channel (RACH) procedure. The PUSCH payload contains information that indicates the specific beam selected by the wireless device.

Abstract

There is disclosed a method performed by a wireless device for indicating a selected beam to a network node within a communication network, the method comprising: transmitting a random- access message comprising a physical uplink shared channel (PUSCH) payload as part of a random-access channel (RACH) procedure to the network node, wherein the PUSCH payload comprises content indicating the beam selected by the wireless device.

METHODS PROVIDING INFORMATION MESSAGES INCLUDING RACH REPORTS AND RELATED WIRELESS DEVICES (18333640)

Inventor Ali PARICHEHREHTEROUJENI

Brief explanation

This abstract describes a wireless device that connects to a first network and performs a series of registration procedures. The device then switches to a second network and performs another set of registration procedures. The information from the first set of procedures is discarded, and the information from the second set is stored. The device then sends a message to the second network containing reports of the second set of procedures.

Abstract

A wireless device registers with a first PLMN having a first PLMN identity. A first plurality of RA procedures is performed while registered with the first PLMN. First information related to the first plurality of RA procedures is stored. The wireless device registers with a second PLMN having a second PLMN identity different than the first PLMN identity after registering with the first PLMN and after performing the first plurality of RA procedures. The first information is discarded responsive to registering with the second PLMN. A second plurality of RA procedures is performed while registered with the second PLMN. Second information related to the second plurality of RA procedures is stored. An information message is transmitted to the second PLMN. The information message includes a plurality of RACH reports corresponding to the second plurality of RA procedures based on the second information.

A method and communication devices for establishing a connection and for exchanging information between the communication devices over the established connection (17927913)

Inventor Tommy Arngren

Brief explanation

The abstract describes a method for exchanging information between a main communication device and a backup communication device. If the main device is not functioning properly, the method detects indications from the backup device that it can provide substitute functionality. It then establishes a connection between the main and backup devices and carries out commands received from the backup device's substitute functionality.

Abstract

A method for providing information exchange between a primary communication device and a secondary communication device, where the method, when executed in the primary communication device, comprises: determining that functionality of the primary communication device is malfunctioning; recognizing at least one indication, each being received from a secondary communication device, indicating that the respective secondary communication device is capable of providing substitute functionality for the malfunctioning functionality; setting up a connection between the primary and the secondary communication device, and executing a command, received from the substitute functionality of the secondary communication device.

POLICY CONTROL FOR REDUNDANT TRANSMISSIONS (18020517)

Inventor Maria Belen PANCORBO MARCOS

Brief explanation

The abstract describes a system and method for managing session requests from User Equipment (UE) in a network. The Session Management Function (SMF) receives a session request message from the UE, which includes a specific Data Network Name (DNN) and Single Network Slice Selection Assistance Information (S-NSSAI) pair. Upon receiving the session request, the SMF sends a policy create message to the Policy Control Function (PCF). This message includes the DNN and S-NSSAI pair, information indicating that the user plane for a PDU session is redundancy capable, and subscription information for the UE, indicating that the subscriber is allowed to have redundant transmissions. The PCF, upon receiving the policy control request, retrieves policy information associated with the UE from a data repository. This policy information includes a list of allowed services. The PCF then determines whether any of the allowed services require redundant transmissions.

Abstract

Disclosed herein is a SMF () that receives a session request message transmitted by a User Equipment, UE (), the session request message comprising a DNN and S-NSSAI pair; and after receiving the session request message, the SMF transmits towards a PCF (), a policy create message that includes one or more of: i) the DNN and S-NSSAI pair from the session request message, ii) information indicating that a user plane for a PDU session for the DNN and S-NSSAI pair is redundancy capable, and iii) subscription information for the UE that indicates that the subscriber is allowed to have redundant transmissions. Also disclosed is a method in a PCF () that receives a policy control request comprising a UE identifier that identifies a UE (); and after receiving the policy control request, obtains from a data repository () policy information associated with the UE (), wherein the policy information includes a list of allowed services; and determines whether any of the allowed services require redundant transmissions;

Slicing of Network Resources for Dual Connectivity using NR (18335501)

Inventor Per Willars

Brief explanation

The abstract describes methods performed by a first network node in a radio access network (RAN). The first network node determines a priority index associated with a user equipment (UE) and sends a request to a second network node to establish a dual connectivity with the UE as a secondary node. The request includes the priority index. The abstract also mentions that there are other embodiments and methods performed by the second network node and other network nodes.

Abstract

Embodiments include methods performed by a first network node configured to operate in a radio access network (RAN). Such methods include determining a radio access technology (RAT)/Frequency Selection Priority (RFSP) index associated with a user equipment (UE) served by the first network node. Such methods include sending, to a second network node, a request for the second network node to establish dual connectivity with the UE as a secondary node (SN). The request includes the RFSP index. Other embodiments include complementary methods performed by the second network node, as well as network nodes configured to perform such methods.

RELEASE CAUSE FOR TRANSITION FROM CONNECTED STATE (18334749)

Inventor Christofer Lindheimer

Brief explanation

The abstract describes a technology that deals with managing communication for temporarily pausing a user's device in a wireless network. The method involves the user's device receiving a message from the network indicating that it should be suspended. The device then applies certain settings based on the suspension instructions and enters an inactive state.

Abstract

Systems, methods, and apparatus for handling communications relating to suspending a user equipment in a radio access network (RAN) are disclosed. An example method includes the user equipment receiving a radio resource control (RRC) release message from a network node. The user equipment determines that the RRC release message includes a suspend configuration field. The user equipment applies delta signalling corresponding to a suspend configuration indicated by the suspend configuration field and transitions to an inactive state.