247 results about "Cell selection" patented technology

Certain aspects of the present disclosure provide techniques for RRC connection reestablishment by a remote UE. In some cases, a remote UE may be configured to detect, on at least one of a first link between a first relay UE and a first network entity or a second link between the remote UE and the first relay UE, a radio link failure (RLF) resulting in a loss of radio resource control (RRC) connection and attempt to reestablish RRC connection by performing at least one of relay selection or cell selection.

Techniques are provided for restricted radio access technology-based cell selection. An example method can include processing information from a public land mobile network (PLMN) indicating a first restricted radio access technology (RAT). The method can further include accessing memory to identify a set of RATs for connecting with the PLMN. The method can further include selecting a second RAT instead of the first restricted RAT from the set of RATs-based on the indication of the first restricted RAT. The method can further include connecting with a cell of the PLMN using the second RAT.

An aspect of this disclosure includes a method of a User Equipment (UE). The method includes receiving Target Network Slice Selection Assistance Information (NSSAI). The method includes performing a cell selection or a cell reselection based on the Target NSSAI.

A method and apparatus for a cell selection or a cell reselection considering a network slice in a wireless communication system is described. A wireless device configures multiple network slices. A wireless device receives a network slice information related to the multiple network slices. A wireless device establishes a PDU session for a specific service. A wireless device determines one or more frequencies that support the at least one network slice, used by the PDU session, from among the multiple network slices based on the frequency information. A wireless device performs a cell selection procedure and / or a cell reselection procedure based on the determined one or more frequencies.

An apparatus, operating in a radio resource control idle mode, selects from multiple candidate cells, a target cell to be a next serving cell for the apparatus. The apparatus starts, based on the target cell providing system information block 1 (SIB1) on an on-demand basis and in response to receiving a SIB1 request configuration for the target cell, a SIB1 request for the target cell based at least in part on the SIB1 request configuration for the target cell. The apparatus reselects, in response to receiving no SIB1 for the target cell in response to the SIB1 request, a secondary candidate cell of the multiple candidate cells on a same frequency as the target cell or on another frequency than the target cell based at least in part on whether intra-frequency reselection is allowed, and continues to consider the target cell in future cell selection or reselection evaluation.

The present application describes methods and systems for cell selection and reselection. One aspect describes the apparatus including a non-transitory memory including executable instructions for cell selection or cell reselection, which when executed by a processor, performs the instructions of determining one or more new public land mobile networks (PLMNs) have been selected. The processor is also configured to execute the instructions of scanning radio frequencies for one or more cells in one or more of the selected PLMNs. The processor is further configured to execute the instructions of determining the one or more cells to be an acceptable cell, a suitable cell, not an acceptable cell, or not a suitable cell. The processor is even further configured to execute the instructions of determining a state of the apparatus to be a multi-camped normally state, a reduced power any cell selection state, a reduced power camped on any cell, a camped normally state, an any cell selection state, or a camped on any cell state.

A wireless terminal of a cellular telecommunication system communicates with a first cell served by a mobile base station relay. The wireless terminal comprises receiver circuitry and processor circuitry. The receiver circuitry is configured to receive, from the first cell, a reconfiguration message comprising second cell information including a cell identity and an operating frequency of a second cell and an indication indicating whether or not the first cell will be replaced by the second cell. The processor circuitry is configured to: (1) perform, based on the reconfiguration message, a handover procedure to handover to the second cell, and (2) perform a cell selection procedure in a case that the handover procedure fails. During the cell selection procedure, the first cell is not considered as a candidate in a case that the indication indicates that the first cell will be replaced by the second cell.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The present disclosure provides methods for supporting emergency service in wireless network (1000) by UE (100). In an embodiment, when a current cell on which the UE (100) is camped. does not support the emergency service. the method includes executing for the current cell or a frequency of the current cell at least one of: barring the current cell or the frequency of the current cell and starting one of a cell barring timer for the barred current cell or a frequency barring timer for the barred frequency of the current cell. Further, the method includes deprioritizing the current cell or the frequency of the current cell with a lowest priority for performing cell selection or cell reselection. Further, the method includes allowing the UE to perform the cell selection or cell reselection on cells other than the current cell or the frequency of the current cell.

The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates and satisfying various service requirements. A method performed by a terminal in a communication system is provided. The method includes transmitting, to a network function related to mobility management, a first NAS message including capability information that indicates whether the terminal supports an access technology utilization control; receiving, from the network function, a second NAS message including information on the access technology utilization control, the information on the access technology utilization control indicating restricted access technology associated with a current PLMN; storing the information on the access technology utilization control; and applying the information on the access technology utilization control for a cell selection and a cell reselection in the current PLMN to restrict an access to the restricted access technology.

Methods, devices, and systems for communication by a wireless transmit / receive unit (WTRU) associated with a source cell. The WTRU is configured with a conditional reconfiguration which includes a trigger condition and a configured target cell. The WTRU detects an occurrence of an impairment event resulting in impairment to operation of the WTRU in the source cell. If the impairment event satisfies the trigger condition, a reconfiguration is performed with the configured target cell. If the impairment event does not satisfy the trigger condition, a target cell is selected based on a cell selection procedure, and if the WTRU is configured with a conditional reconfiguration for the selected target cell, a reconfiguration is performed with the selected target cell; and if the WTRU is not configured with a conditional reconfiguration for the target cell, a reestablishment is performed with the selected target cell.

Extended Reality (XR) applications may require high throughput and very low latency. New Radio (NR) Wireless receiver / transmitter units (WTRUs) running XR applications (XR-WTRUs) may be confronted with link failures when these applications are used in dense urban or indoor environments because of these devices operating in the millimeter band. Methods and devices are provided therefore for performing cell selection and beam management proactively to avoid link failure due to objects being in line of sight between the XR-WTRU and a network node with which it has established a connection. XR-WTRUs may therefore perform visual sensing that may enable visualizing current and future radio environment and using this information to prevent link failures by handing the XR-WTRU over to an alternative network node in line of sight of the XR-WTRU before the XR-WTRU is no longer in line of sight of the network node with which it has established a connection.

Methods and apparatuses for area management in a wireless communication system. A method of operating a UE comprises: receiving a first neighboring cell list and a second neighboring cell list; determining a priority between an NTN and a TN; and prioritizing the first neighboring cell list or the second neighboring cell list in a cell selection or reselection operation based on the priority. The first neighboring cell list includes one or more NTN cells and the second neighboring cell list includes one or more TN cells.

Techniques are described to perform cell selection operation or cell reselection operation by using slice information. An example wireless communication method includes receiving, by a communication device, a slice information that indicates a configuration associated with one or more slices; and performing, by the communication device, a cell selection operation or a cell re-selection operation with a target cell that is determined by the communication device using the slice information.

Disclosed are techniques for wireless communication. In an aspect, a wireless communication device may obtain, while operating in an RRC not-connected state and having selected and camped on a current cell associated with a first SRS validity area, first one or more mobility measurements of a first candidate cell associated with the first SRS validity area and second one or more mobility measurements of a second candidate cell associated with a second SRS validity area. The wireless communication device may reselect to the first candidate cell based on: the first candidate cell and the second candidate cell being qualified for cell reselection, a second cell selection value being greater than a first cell selection value, the second cell selection value being based on the second one or more mobility measurements, and the first cell selection value being based on the first one or more mobility measurements, and a difference between the first cell selection value and the second cell selection value meeting a prioritization criterion.

Cell selection circuit is provided between n cells connected in series, where n is an integer of 2 or more, and inductor, and is provided at both ends of the selected cell and both ends of inductor can be conductive. Clamp circuit includes at least one clamp switch for forming a closed loop including inductor in a state where cell selection circuit does not select any cells. Current detection circuit detects the value of the current flowing through inductor. Low-pass filter band-limits the detection value. Overcurrent detection circuit activates the protection of inductor when the band-limited detection value exceeds the threshold.

The present disclosure relates to a communication method, a terminal, a network device and a storage medium. The method comprises: receiving a first system information block (SIB) sent by a network device, wherein the first SIB comprises configuration information for one or more network energy saving (NES) cells, and wherein the terminal is in a radio resource control (RRC) connected state, and the configuration information is used for the terminal to request a SIB1 and / or request SI when cell selection is performed on the NES cell. In the method of the present disclosure, the terminal in the connected state can obtain the configuration information through the first SIB, and when cell selection is performed on the NES cell, the terminal can ensure that there is valid configuration information, so as to facilitate timely request of the SI or the SIB1 according to the pre-received configuration information.

The invention discloses a cell selection method, a cell selection system and a related device. And the terminal resides in the first cell and executes the first service. Wherein the type of the first service is the first type. If the terminal detects that the first service is blocked, searching a first cell list; wherein the first cell list comprises one or more cells, and the one or more cells in the first cell list comprise the second cell. And the terminal acquires capability information of one or more cells in the first cell list. And the terminal resides in the second cell based on the first type and the capability information of one or more cells in the first cell list. Thus, the terminal jointly selects the cell to be resided according to the service type and the capability information of the cell, consideration factors are more diversified, and the method is more suitable for the application scene of the terminal. When the network is seriously congested and interfered, the cell suitable for executing the first service can be efficiently determined, and higher throughput and better service experience can be realized.

A method, apparatus, and computer program are described comprising: obtaining information from a mobile communication system, wherein the mobile communication system comprises a reconfigurable intelligent surface, RIS, that is configured to support communications between a network node and user equipment of at least a first cell of the mobile communication system, and wherein the information is indicative of the RIS being configured to provide said support; and determining during a cell selection or reselection procedure to camp on the first cell based at least in part on the obtained information.

A method for cell selection is provided. The method may include the following steps. A user equipment (UE) may determine whether a current cell is a power-saving cell, a high-throughput cell or a power-saving and high-throughput cell based on a plurality of parameters configured by a network node. Then, the UE may determine whether to perform a cell selection in response to the current cell being a power-saving cell, a high-throughput cell or a power-saving and high-throughput cell.

Apparatuses, methods, and systems are disclosed for performing cell selection / reselection on a radio frequency associated with a network slice. One apparatus includes a processor and a transceiver that camps on a first frequency layer of a RAN while in a RRC idle state, the first frequency layer supporting a first set of network slices, where the first set of network slices is prioritized for use with a first frequency. The processor iteratively performs cell search on a second frequency layer while the apparatus is camped on the first frequency layer, the second frequency layer supporting a second set of network slices, where the second set of network slices is prioritized for use with a second frequency. The processor maintains in parallel the second frequency layer while in the RRC idle state.

Various aspects of the present disclosure relate to cell selection using a low power processor. A user equipment (UE) includes one or more primary radios corresponding to one or more radio access technologies (RATs) or frequencies, and also includes a low power radio (LR). The LR uses various information to perform cell measurements and cell selection or reselection procedures (e.g., according to a priority list provided by network equipment). After performing cell selection or reselection, the LR can wake up one or both of the corresponding RAT or primary radio of the selected cell, allowing other RATs or primary radios in the UE to remain in a low power mode (e.g., powered off or in a sleep state).

A user equipment in a communication system, a network and methods used thereby are disclosed. The user equipment comprises a receiver configured to receive first information and second information from a network, the first information indicating at least one parameter for cell selection, the second information indicating an offset value for a supplementary uplink carrier, SUL carrier; and a processor configured to determine a cell selection criterion for a cell based on the first information and the second information in case the UE supports the SUL carrier.

Provided in the present application are a wireless communication method, a device, a chip, a storage medium and a program product. The method comprises: a terminal device receiving first information, wherein the first information is used for configuring a first model, and the first model is an artificial intelligence (AI) model for cell selection and / or cell reselection.

Methods, systems, and devices for wireless communication are described that provide for cell selection or reselection at a user equipment (UE) based on cell selection preference criteria of the UE. The UE may receive a set of cell selection criteria that provides a priority order for cell selection based on one or more cell features, cell types, or combinations thereof. The UE, based on one or more signal measurements of available cells and the cell selection criteria, may select one of the available cells for communications. The UE may also maintain a feature cell database in which a number of cells and an associated feature mask may be stored and used to identify cells having features or types associated with the cell selection criteria for use in cell prioritization. Cell selection criteria may be used for cell selection / reselection procedures, mobility procedures, or any combinations thereof.

Methods for triggered mobility event evaluation, in the presence of cross-link interference (CLI), are disclosed. A wireless transmit / receive unit (WTRU) may communicate, with a base station in a serving cell, using downlink subbands of a first frequency band and an uplink subband of the first frequency band in full duplex slots, wherein the downlink subbands and the uplink subband are non-overlapping. The WTRU may measure a signal strength of a signal received on the uplink subband in a first full duplex slot. The WTRU may select a set of reference signal received power (RSRP) threshold values from among a plurality of sets of RSRP threshold values by comparing the measured signal strength to at least one threshold. The WTRU may evaluate one or more mobility measurement events using the selected set of RSRP threshold values to trigger and perform cell switching, cell selection, or cell reselection.

This invention provides a method and a user equipment (UE) executed by a relay user equipment (UE). The method includes the following steps: the relay UE triggers or initiates a Radio Resource Control (RRC) connection re-establishment procedure; during the RRC connection re-establishment procedure, if the relay UE determines that it is performing an operation as an intermediate relay UE, the relay UE performs relay selection but not cell selection; if the relay UE determines that it is performing an operation as a last relay UE, the relay UE performs cell selection but not relay selection; if the relay UE determines that it has the capability to perform an intermediate relay UE operation, and if the UE determines that it is not performing an operation from UE to network U2N relay UE, then the relay UE performs either cell selection or relay selection; if the relay UE determines that it is performing an operation as a U2N relay UE, then the relay UE performs cell selection but not relay selection.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a message that includes a multi-operator core network (MOCN) frequency indicator that indicates whether an operating frequency is configured with at least one shared cell that is associated with multiple public land mobile network (PLMN) identities. The UE may perform a cell selection or reselection procedure to select a cell associated with the operating frequency based on the cell satisfying a threshold such as a quality threshold. The UE may then select, as part of the cell reselection procedure, a shared cell associated with the operating frequency based on the cell being unavailable for selection based on a PLMN identity associated with the cell, and the MOCN frequency indicator indicating that the operating frequency is configured with the at least one shared cell.

The present invention addresses the problem of providing a cell selection method that enables the assessment of the damage tolerance of cells in a floating culture system, a device for selecting cells and a device system for selecting cells. According to the present invention, provided is a cell selection method that comprises introducing cells into a microchannel, passing the cells through the microchannel, assessing the damage tolerance of the cells against a damage caused by the passage of the cells through the microchannel, and selecting cells on the basis of the assessment of the damage tolerance.

A method for cell selection or reselection is implemented in a user equipment (UE). The method comprises receiving (504), in a serving cell and in a first system information block (SIB), non-terrestrial (NTN) carrier frequency information for an NTN radio access technology (RAT); receiving (508), in the serving cell and in a second SIB, satellite information for the NTN RAT; and selecting (514) an NTN cell associated with the NTN RAT.

The embodiment of the application provides a communication method and related device, and the method comprises the following steps: obtaining first information, wherein the first information is used for indicating that a terminal device leaves a first coverage interval at a first time; and starting to perform a cell selection process at the first time. The embodiment of the application can save the power consumption of the terminal device.