59 results about "Slice selection" patented technology

Network Slice Selection Assistance Information (NSSAI) may be signaled between User Equipment (UE) and a network. NSSAI sent from the network to the UE may include, for example, Operating Frequency Band (OFB) for each Single NSSAI (S-NSSAI) in the NSSAI, as well as a Radio Access Technology (RAT) Frequency Selection Priority (RFSP) index, which the network configures as a part of UE access and mobility subscription, during a UE registration procedure. RAT restrictions may be enhanced to indicate to the UE that certain slices are not accessible via certain RATs. A UE may be provided by the network with an alternative NSSAI and corresponding OFBs for each S-NSSAI, thereby indicating to the UE that these S-NSSAI would have been allowed had they been requested. A UE may be able to choose an alternative Allowed NSSAI and send a registration update request to the network.

According to one embodiment of this specification, a method may comprise: locally removing a Single Network Slice Selection Assistance Information (S-NSSAI) from an Allowed NSSAI if a slice deregistration inactivity timer expires; and de-mapping a replaced S-NSSAI and an alternative S-NSSAI in an access type when the replaced S-NSSAI or alternative S-NSSAI is removed from an allowed NSSAI due to the slice deregistration inactivity timer expiry over a corresponding access type.

An example aspect of this disclosure includes a method of a User Equipment (UE). The method includes communicating with a communication apparatus. The method includes sending, to the communication apparatus, first Single Network Slice Selection Assistance Information (S-NSSAI) included in Pending Network Slice Selection Assistance Information (NSSAI).

In the current 3GPP specifications, there are some unclear situations regarding the NSSAA procedure.An aspect of this disclosure includes a method of a first communication apparatus. The method includes communicating with a second communication apparatus. The method includes sending Requested Network Slice Selection Assistance Information (NSSAI) to the second communication apparatus in a case where the first communication apparatus has Pending NSSAI. The Requested NSSAI includes the Pending NSSAI.

According to one embodiment of this specification, there is provided a method. The method may comprise: receiving a Registration Accept message or UE Configuration Update Command message. The Registration Accept message or UE Configuration Update Command message includes at least one of a slice deregistration inactivity timer and validity time for one or more Single Network Slice Selection Assistance Information (S-NSSAI). The method may comprise: starting a first timer based on the slice deregistration inactivity timer. If the first timer expires, the UE locally removes the S-NSSAI from the Allowed NSSAI. If UE does not trigger Mobility Registration Update and Allowed NSSAI becomes empty after expiry of the validity time, then the UE enters deregistered state implicitly.

According to one embodiment, a method may comprise: starting a slice deregistration inactivity timer; locally removing a Single Network Slice Selection Assistance Information (S-NSSAI) from an Allowed NSSAI if the slice deregistration inactivity timer expires; and de-mapping a replaced S-NSSAI and an alternative S-NSSAI in an access type when the replaced S-NSSAI or alternative S-NSSAI is removed from an allowed NSSAI due to the slice deregistration inactivity timer expiry over a corresponding access type.

Methods and apparatus in a wireless communication system are directed to establishing augmented reality and / or media XRM service traffic between a user equipment (UE) (102) and a data network. A core network, CN, element (110) of the system receives (311), from a radio access network, RAN, node (104), single network slice selection assistance information, S-NSSAI, or XRM capabilities for XRM services of the UE (102). The CN element (110) sends (315) a Quality of Service, QoS, parameter based on a Packet Data Unit, PDU, to a Radio Access Network, RAN, node (104), and activates (317), at a User Plane Function, UPF, (166), a PDU set based handling corresponding to the PDU set QoS parameter for a PDU set based QoS flow of a PDU session associated with a network slice corresponding to the selected S-NSSAI.

Various embodiments of the disclosure provide a device performing communication and a method for operating the same. According to an embodiment, an operation method comprise receiving, by the AMF, a registration request message from a user equipment (UE) through a base station, the registration request message including network slice selection assistance information (NSSAI) requested from the UE, identifying, by the AMF, whether the requested NSSAI can be serviced, transmitting, by the AMF, a message for requesting a target AMF capable of servicing the requested NSSAI to a network slice manager (NSM) through a network slicing selection function (NSSF) when the requested NSSAI cannot be serviced, and receiving, by the AMF, information regarding the target AMF from the NSM through the NSSF and transmitting the information regarding the target AMF and NSSAI allowed by the target AMF to the base station.

In a method for creating an image dataset of a mapping area situated in a measuring volume, k-space corresponding to the mapping area may be read out and image data may be reconstructed based on recorded first and second raw data points of k-space. The reading out of k-space may include: switching a gradient in the slice selection direction and a phase-encoding gradient in at least one further encoding direction, radiating a non-slice-selective radio-frequency (RF) excitation pulse, recording echo signals and storing them as first raw data points along a radial k-space trajectory predefined by the full strength of the phase-encoding gradients (Gp) further switched during recording of the echo signals, and reading out k-space corresponding to the mapping area as second raw data points.

Redirection and retry of registration is disclosed herein. In some embodiments, a User Equipment (UE) of a Next Generation Radio Access Network (NG-RAN) is adapted to transmit a Non-Access Stratum (NAS) registration request comprising one or more Single-Network Slice Selection Assistance Information (S-NSSAI), indicated as one or more requested S-NSSAI. The UE is further adapted to receive, in an Access Stratum (AS) protocol, an AS-level registration reattempt indication to instruct the UE to reattempt the NAS registration request in a target cell. The UE is also adapted to reattempt the NAS registration in the target cell, responsive to receiving the AS-level registration reattempt indication.

The embodiment of the invention provides a three-dimensional magnetic resonance imaging method and system and a storage medium, and the method comprises the steps: obtaining the k-space data of a target object, and the target object comprises a plurality of layers; and reconstructing a three-dimensional magnetic resonance image of the target object based on the k-space data. Wherein the k-space data comprises a spiral data line acquired in each of a plurality of repetition times, and the spiral data line is acquired by applying an imaging sequence to the target object by using the magnetic resonance equipment and acquiring the imaging sequence in a spiral sampling manner. The imaging sequence includes applying a random phase encoding gradient to the plurality of layers in a selected layer direction such that the spiral data line acquired within each repetition time corresponds to a random one of the plurality of layers.

Disclosed in the present application are a communication processing method and apparatus, and a device and a readable storage medium. The method comprises: a first communication device executing a first behavior, which comprises at least one of the following: a first sub-behavior and a second sub-behavior, wherein the first sub-behavior comprises at least one of the following: acquiring related information of a first operation, the related information comprising at least one of the following: an identifier of the first operation, first indication information, a DNN, slice selection assistance information, information of a destination, and an identifier of a terminal device, executing at least one of the following on the basis of the related information of the first operation: exchanging the information related to the first operation with the destination, and sending an operation result of the first operation to the destination, and establishing a first channel; and the second sub-behavior comprises at least one of the following: acquiring at least one of the following: first information and a first rule, and executing at least one of the following on the basis of at least one of the first information, the first rule and the related information of the first operation: determining or establishing a first channel, and sending the first information to a second communication device by means of the first channel.

Example embodiments of the present disclosure are directed to inter-Radio Access Technology (Inter-RAT) network slice switching. A method comprises a user equipment (UE) transmitting to a core network

A method for recording scan data of an examination object which includes spins of at least two different spin species by means of a magnetic resonance system. The method includes: radiating in a composite RF pulse, for example, a binomial pulse comprising at least two subpulses; switching bipolar slice selection gradients so that successive subpulses of the composite RF pulse are encoded with differently polarized slice selection gradients; recording as scan data magnetic resonance signals triggered by the composite RF pulse; and storing and / or further processing the recorded scan data, wherein the subpulses are radiated in at a frequency that is detuned by a detuning shift relative to a resonance frequency of a spin species that is to be represented, such that by way of the detuning shift a linear evolution of the phase over the temporal progression of the composite RF pulse results.

A User Equipment (UE) includes a transmission and reception unit, a storage unit, and a controller, in which the transmission and reception unit is configured to receive Allowed Network Slice Selection Assistance Information (NSSAI) and one or more first mapped Single Network Slice Selection Assistance Information (S-NSSAI) for the Allowed NSSAI, and unless the storage unit stores an S-NSSAI associated with second mapped S-NSSAI in rejected NSSAI and the second mapped S-NSSAI is not included in the one or more first mapped S-NSSAI for the Allowed NSSAI, the controller removes an S-NSSAI included in the Allowed NSSAI from the rejected NSSAI stored in the storage unit.

According to one embodiment of this specification, there is provided a method performed by a user equipment (UE). The method may comprise: receiving a REGISTRATION ACCEPT message or a CONFIGURATION UPDATE COMMAND message including on-demand Network Slice Selection Assistance Information (NSSAI) and a slice deregistration inactivity timer. The on-demand NSSAI may include one or more on-demand single NSSAIs (S-NSSAIs). The method may further comprise: starting the slice deregistration inactivity timer for a first on-demand S-NSSAI, if a protocol data unit (PDU) session associated with the first on-demand S-NSSAI is released, if there is no established user plane resources of a multi-access (MA) PDU session associated with the first on-demand S-NSSAI and if there is no PDU session associated with the first on-demand S-NSSAI.

The invention relates to a method for acquiring a magnetic resonance image with a field of view (S) expanded in at least one direction using a magnetic resonance tomograph (1), the method comprising the following steps: (a) providing a directory correction function for the expanded field of view, (b) providing (24) at least one optimized position along the slice selection direction, wherein the static magnetic field has a high degree of homogeneity within the slice at the optimized position in at least one predetermined region (40a, 40b) in the periphery of the field of view (S), (c) providing (25) an optimized readout gradient, wherein the strength and polarity of the optimized readout gradient are selected such that distortions in the magnetic resonance image caused by inhomogeneities of the static magnetic field and distortions caused by non-linearities of the readout gradient field,are compensatingly superimposed within the at least one predetermined region (40a, 40b), (d) acquiring the magnetic resonance image at the optimized position along the slice selection direction with the optimized readout gradient, and (e) performing a directory correction of the acquired magnetic resonance image based on the directory correction function. The invention is also directed to a computer program and a magnetic resonance tomograph.

The invention discloses a lumbar vertebra scanning processing method and device, a storage medium and electronic equipment, and the method comprises the steps: obtaining a sagittal three-dimensional image of a lumbar vertebra, carrying out the three-dimensional segmentation of the lumbar vertebra and an intervertebral disc in the sagittal three-dimensional image, and obtaining a lumbar vertebra segmentation result and an intervertebral disc segmentation result; inputting the lumbar vertebra segmentation result and the intervertebral disc segmentation result into a preset anatomical key point detection network for anatomical key point identification to obtain an anatomical key point set, and constructing a local vector space based on the anatomical key point set, according to a preset magnetic resonance lumbar vertebra scanning constraint rule, target scanning positioning parameters corresponding to multiple target scanning orientations are matched in the local vector space, and the target scanning positioning parameters at least comprise a phase coding direction, a frequency coding direction, a slice selection direction and a slice center position; and controlling magnetic resonance equipment to execute lumbar vertebra scanning based on the target scanning positioning parameter. The lumbar vertebra scanning parameter planning can be automatically completed.

A method performed by a base station (BS) is provided. The method includes transmitting system information including network slice related information, receiving, from a user equipment (UE), a radio resource control (RRC) connection complete message including single network slice selection assistance information (S-NSSAI), and transmitting, to the UE, an RRC connection release message including priority information related to the S-NSSAI.

In a method for slice-specific correction of scan data recorded for at least two slices simultaneously of an examination object using an EPI-SMS technique, navigator signals encoded in a slice selection direction using a bipolar readout gradient for the at least two slices temporally after a RF excitation pulse radiated into the examination object and temporally before the recording of scan data to be corrected may be simultaneously recorded. Mean navigator signal(s) from at least two of the recorded navigator signals of a same polarity may be determined. Single-slice navigator signals may be determined based on the mean navigator signal and a navigator signal having been recorded with the same polarity as the mean navigator signal(s), but with a different slice selection encoding. Slice-specific correction data from the single-slice navigator signals may be determined, and scan data may be corrected based on the slice-specific correction data.

A method and apparatus for obtaining T1-weighted and susceptibility-weighted imaging images may include in a 3D EPI process with a plurality of times of excitation, for each time of excitation, first performing radio frequency pulse excitation on target tissue, and simultaneously applying a slice selection gradient pulse to the target tissue in a slice selection encoding direction. When a preset T1W data acquisition time arrives, T1W data for an excited echo may be acquired. After the T1W data acquisition is completed, SWI data for the excited echo may be acquired. Image reconstruction may then be performed on T1W data acquired in all excitation processes to obtain a T1W image of the target tissue, and image reconstruction on SWI data acquired in all the excitation processes may be performed to obtain an SWI image of the target tissue. Both T1W data and SWI data can be obtained in one excitation process.

A user equipment (UE) is provided for processing slice information having a Single Network Slice Selection Assist Information (S-NSSAI) mapping for a Universal Integrated Circuit Card (UICC) processor. The UE operates by determining whether its baseband processor is busy. Based on the determination that the baseband processor is not busy, the baseband processor transmits a retrieval message to the UE's UICC processor, wherein the retrieval message is transmitted in response to receiving an active command pending message from the UICC processor. The baseband processor receives an active command message from the UICC processor, wherein the active command message corresponds to a request for Single Network Slice Selection Assist Information (S-NSSAI) information corresponding to one or more network slices. Finally, the baseband processor transmits a response message with the S-NSSAI information to the UICC processor.

A method for performing magnetic resonance (MR) scanner simulation in a magnetic resonance imaging (MRI) simulator is described, the method comprising: inputting data parameters into a web interface of the MRI simulator, wherein the inputted data parameters are at least pulse sequences and an anatomical model; connecting the web interface and a cloud-based simulator engine of the MRI simulator to pass the data parameters to the cloud-based simulator engine, the method comprising: importing a pulse sequence calculation model; setting the inputted data; and slice selection on the obtained images in the web interface; the method further comprising: recomputing the data parameters to provide one or more simulated MR signals, the recomputing being performed in the cloud, and wherein the method further comprises: reconstructing an MR image based on the one or more simulated MR signals, the reconstruction of the MR image being performed in the cloud; and sending the MR image to the web interface.

A method and apparatus for selecting a random access configuration is provided. The Method includes receiving a System Information Block1, selecting a feature-combination-related-information based on a feature-combination-information and performing random access procedure based on the selected feature-combination-related-information. The SIB1 includes a one or more RACH-ConfigCommon, each of the one or more RACH-ConfigCommon includes a zero or one or more feature-combination-related-information, each of the one or more feature-combination-related-information includes a feature-combination-information, the feature-combination-information includes a redcap related field and a smallData related field and a message 3 repetition related field and a slice related field, each of the redcap related field and the smallData related field and the message 3 repetition field includes a bit indicating a single value, the slice related field includes a information corresponding to one or more Single-Network Slice Selection Assistance Information (S-NSSAI), the information corresponding to one or more Single Network Slice Selection Assistance Information (S-NSSAI) consists of multiple bits.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a terminal in a wireless communication system is provided. The method includes receiving, from an access and mobility management function (AMF), information on a location, identifying whether single network slice selection assistance information (S-NSSAI) is supported, and in case that the S-NSSAI is supported, performing a transition to a radio resource control (RRC) connected state.

The disclosure relates to a fifth generation (5G) or sixth generation (6G) communication system for supporting a higher data transmission rate. A method and system for handling slice replacement in a communication network system are provided. The method includes receiving by the user equipment (UE) Single Network Slice Selection Assistance Information (S-NSSAI) time validity information for Single Network Slice Selection Assistance Information (S-NSSAI) from the first network apparatus. The method includes detecting by the UE that the S-NSSAI time validity information indicates that the S-NSSAI is available. The method includes locally removing by the UE the entry of at least one of a replaced S-NSSAI, an alternative S-NSSAI from an alternative NSSAI, or an S-NSSAI from allowed NSSAI or partially allowed NSSAI when the S-NSSAI time validity information indicates that the S-NSSAI is not available. The entry includes S-NSSAI corresponding to the replaced S-NSSAI or the alternative S-NSSAI.

This application relates to a method and a terminal device for slice selection. The method includes: the terminal device receiving deployment-related slice information; and the terminal device selecting a slice based on the deployment-related slice information. According to embodiments of this application, based on the deployment-related slice information, a suitable slice can be selected, reducing latency for terminal device access and service delivery.

One example of the present specification relates to a method performed by a user equipment (UE). The method may include receiving a REGISTRATION ACCEPT message or a CONFIGRATION UPDATE COMMAND message including an on-demand network slice selection assistance information (on-demand NSSAI), and a slice cancellation inactive timer (slice cancellation), the REGISTRATION ACCEPT message or the CONFIGRATION UPDATE COMMAND message including an on-demand network slice selection assistance information (on-demand NSSAI) and a slice cancellation inactive timer (slice cancellation). The on-demand NSSAI may include one or more on-demand single network slice selection assistance information (on-demand S-NSSAI) (s). The method may include, in a case where a PDU (Protocol Data Unit) session related to a first on-demand S-NSSAI has been released, and a user plane resource of a Multi-Access (MA) PDU session related to the first on-demand S-NSSAI does not exist, and a PDU session related to the first on-demand S-NSSAI does not exist, transmitting a PDU session to the first on-demand S-NSSAI. And a slice logout inactive timer of the first on-demand S-NSSAI is started.

The disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). Embodiments disclosed herein provide a method for managing a NSSAI list in a wireless network (1000) by a UE (100). The method includes receiving the partially allowed NSSAI list or an allowed NSSAI list from a NF entity (200) in the wireless network (1000). Further, the method includes deleting the S-NSSAI, from the partially rejected NSSAI, included in the partially allowed NSSAI list or allowed NSSAI list. Further, the method includes receiving the configured NSSAI information from the NF entity (200). Further, the method includes deleting a stored partially rejected NSSAI based on the configured NSSAI information.

The present invention discloses a magnetic resonance pulse generation method and a magnetic resonance imaging method. The magnetic resonance pulse generation method includes: acquiring a slice of a target object, wherein the slice includes multiple single layers arranged along a preset slice selection direction; dividing the single layer into multiple sublayers according to the preset slice selection direction, wherein each sublayer has a positive or negative pulse excitation direction; and generating a sub-excitation pulse signal corresponding to each sublayer based on the parameters of each sublayer and the pulse excitation direction of each sublayer. The present invention solves the technical problem that the existing 90-degree effect elimination solution cannot effectively eliminate the 90-degree effect.