754 results about "Cell selection" patented technology

A reflective device includes a control element, and a reflective surface with a plurality of reflective elements. Each reflective element of the plurality of reflective elements includes an antenna element and a phase shifting arrangement and is under control of the control element so as to reflect a radio-frequency (RF) signal incident on the reflective surface with an adjustable phase shift. The plurality of reflective elements are connected to the control element via a cell selection bus system that interconnects the plurality of reflective elements.

A method and apparatus for using a CHO configuration for RLF recovery in a wireless communication system is provided. A wireless device may receive, from a network, a CHO configuration including (1) information on candidate cells including a NTN cell, and (2) information on a first time period associated with the NTN cell. The wireless device may stop the CHO evaluation for the NTN cell after the first time period. The wireless device may perform cell selection, upon detecting radio link failure during the second time period. The wireless device may perform a CHO to the NTN cell, based on that the NTN cell is selected by the cell selection.

The disclosure relates to a 5th generation (5G) communication system or a 6th generation (6G) communication system for supporting higher data rates beyond a 4th generation (4G) communication system, such as long term evolution (LTE). A method of managing execution failure of L1 / L2 triggered mobility (LTM), in a user equipment (UE), communicatively coupled to a telecommunication network is provided. The method includes if an initial LTM execution attempt fails, performing, by the UE, cell selection, and if the selected cell is an LTM candidate cell and if the UE has been configured by the telecommunication network to attempt LTM after an LTM execution failure, the attempting, by UE, a further LTM execution.

Systems, methods, apparatuses, and non-transitory computer-readable medium for conditional handover configuration for fast offloading during cell shutdown. For example, a method comprises receiving, with a user equipment from a serving cell, one or more handover configurations. The one or more handover configurations comprises an energy saving conditional handover configuration. At least one of the one or more handover configurations comprises at least one of: an indication of one or more candidate target cells, or information for target cell selection. The method also comprises receiving, from the serving cell, an indication of activation of an energy saving mode at the serving cell. The method further comprises selecting a target cell, from the one or more candidate target cells, based, at least partially, on the one or more handover configurations and the received indication of activation of the energy saving mode at the serving cell.

A wireless transmit / receive unit (WTRU) may perform cell selection and / or beam association as described herein. The WTRU may use contextual information, such as a location, to enable cell selection and / or beam association. The WTRU may be configured with a resource on which to report WTRU contextual information. The WTRU may receive, in response to the contextual information, assistance information associated with one or more cells for enabling cell selection and / or beam association. For example, the WTRU may receive a defined subset of measurement resources in response to the transmission of the location on the resource. The WTRU may determine a base station (BS) and / or a beam pair (BP) based on the assistance information. The WTRU may perform a transmission to the BS using at least one beam of the BP.

In response to detecting a failure (13), a communication device (12) performs cell selection as part of a connection re-establishment procedure in order to select a cell. The communication device (12) may make a decision as to whether to apply any of multiple conditional reconfigurations (16S) stored at the communication device (12) for the selected cell (18S) to recover from the failure (13). Alternatively or additionally, the communication device (12) may select, from the multiple conditional reconfigurations (16S) stored at the communication device (12) for the selected cell (18S), a conditional reconfiguration to apply to recover from the failure (13).

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.

The invention discloses a communication method and related equipment. According to the communication method, the terminal equipment resides on a serving cell to carry out services such as conversation and internet surfing, and the terminal equipment can start a timer T1 under the condition of determining that a reporting condition of a preset measurement event is met and determining that a signal of the serving cell and a signal of an adjacent cell meet a certain condition; and the RLF process is triggered under the condition that the timer T1 is overtime and the terminal equipment does not receive the switching message. And according to the RLF process, the terminal equipment performs cell selection, sends an RRC reestablishment request to the network equipment corresponding to the selected cell so as to establish an RRC connection with the network equipment corresponding to the selected cell, and continues to perform the service based on the RRC connection. According to the method, the service lag time caused by unsuccessful cell switching can be reduced, and the communication experience of the user in the service is improved.

A method can include receiving, by a wireless device, configuration parameters, of an early channel state information (CSI) reporting procedure associated with a layer 1 / 2 triggered mobility (LTM) procedure. The configuration parameters can include a first threshold for a candidate cell selection; a second threshold for a serving cell; and a timer for triggering the early CSI reporting procedure. The method can also include triggering the early CSI reporting procedure in response to an expiry of the timer; a first layer 1 reference signal received power (L1-RSRP) value of a candidate cell being higher than the first threshold; and a second L1-RSRP value of the serving cell being lower than the second threshold. The method can additionally include transmitting, based on the triggering, a CSI report indicating the candidate cell for the LTM procedure.

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.

The disclosure relates to a 5th generation (5G) communication system or a 6th generation (6G) communication system for supporting higher data rates beyond a 4th generation (4G) communication system, such as long term evolution (LTE). A method of managing execution failure of L1 / L2 triggered mobility (LTM), in a user equipment (UE), communicatively coupled to a telecommunication network is provided. The method includes if an initial LTM execution attempt fails, performing, by the UE, cell selection, and if the selected cell is an LTM candidate cell and if the UE has been configured by the telecommunication network to attempt LTM after an LTM execution failure, the attempting, by UE, a further LTM execution.

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.

Provided are a wireless communication method, and a terminal device and a network device. The method comprises: a terminal device receiving first information, wherein the first information is used for performing cell selection / cell reselection, and the first information is related to a low-power-consumption wake-up signal. The first information is carried in system information, and the terminal device is a terminal device that supports the low-power wake-up signal.

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.

An electronic device is provided. The electronic device includes an antenna, a communication module connected to the antenna, and a processor connected to the communication module, wherein the processor can confirm a frequency band supportable by the electronic device, receive, from a base station, system information including information about a peripheral cell, determine whether the peripheral cell is either an unlicensed cell or a non-terrestrial cell on the basis of the confirmed frequency band and / or the received system information, determine the priority of a frequency, which is the reference for cell selection, on the basis of at least one from among the confirmed frequency band, the received system information, and the type of determined cell, and select a cell according to the determined priority of the frequency.

The invention discloses a wireless communication method, device and equipment, and belongs to the field of communication, and the wireless communication method comprises the steps that a terminal sends first information to network side equipment; wherein the first information is used for indicating at least one of the following items: preference of the terminal for executing the first operation and information obtained by mobility reasoning based on an AI model; the first operation comprises at least one of the following items: cell switching, cell redirection, connection reestablishment, cell selection, cell reselection, activation of a turned-off cell, entering an idle state, leaving a connection state, shutdown, entering a flight mode, and mobility reasoning based on an AI model. In the embodiment of the invention, the terminal reports the preference of the terminal for executing the first operation or the information obtained by the mobility reasoning based on the AI model, so that the network side equipment can perform terminal-level configuration optimization according to the preference information of the terminal or the information obtained by the mobility reasoning based on the AI model, and the performance improvement taking the terminal as the center is realized.

The present application is related to a method and apparatus for controlling a cell selection procedure and a handover procedure under 3GPP 5G New Radio (NR) technology. A method for wireless communication performed by a user equipment (UE) includes: starting a first timer for controlling a cell selection procedure; and performing the cell selection procedure to select a cell.

Systems and methods for configuring cell selection and access are provided. A wireless device can receive configuration information, from a network node, including a plurality of cell access threshold parameters, wherein each parameter indicates a cell access threshold for at least one feature. The wireless device can determine that a first feature associated with a first cell access threshold parameter is supported by the wireless device and select a cell for access accordingly.

A communication control apparatus has: a movement information acquisition unit that acquires movement information concerning the movement of a relay station that can communicate with a base station and expand the communication cell provided by the base station; an expansion cell selection unit that selects a communication cell to be expanded by the moving relay station based on the movement information; and a connection control unit that connects the relay station to the base station that provides the selected communication cell. The relay station is installed to a movable vehicle.

Systems and methods for User Equipment (UE) operation in presence of Clear Channel Assessment (CCA) are provided. In some embodiments, a method performed by a wireless device for cell selection accounting for requirements includes: determining a measurement period in a serving cell for the cell selection or cell re-selection (T1), wherein the measurement period is determined based on a number of consecutive Discontinuous Reception (DRX) cycles; determining a number of measurement occasions configured with a Discovery Reference Signal (DRS) in the serving cell during T1; determining availability of the DRS at the measurement occasions; and performing measurement based on availability of the DRS at the measurement occasions during T1. In this way, a wireless device may operate in NR RRC_IDLE / RRC_INACTIVE in the presence of CCA, e.g., Listen-Before-Talk (LBT).

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.

This application discloses a cell selection or reselection method and apparatus. The cell selection or reselection method includes: A terminal receives target configuration information; and the terminal performs cell selection or reselection based on the target configuration information, where the target configuration information is related to network energy-saving, and the target configuration information includes at least one of the following: first configuration information, used to indicate whether the terminal is allowed to select or reselect to a cell; second configuration information, including a first frequency list or a first cell list, where the first frequency list includes a frequency of a cell that supports network energy-saving or a frequency that supports network energy-saving, and the first cell list includes the cell that supports network energy-saving; and third configuration information, used to indicate reselection information related to network energy-saving.

The present disclosure relates to cell selection in wireless communications. According to various embodiments, a method performed by a wireless device in a wireless communication system comprises: receiving, from each of a plurality of mobile cells, location information related to each of the plurality of mobile cells and identifier (ID) information related to each of the plurality of mobile cells; estimating a movement pattern of each of the plurality of mobile cells based on the location information and the identifier information; determining a mobile cell among the plurality of mobile cells for a cell selection based on the movement pattern; and performing the cell selection to the determined mobile cell.

Systems, methods, devices, and instrumentalities are described herein related to sensing service continuity. A wireless transmit / receive unit (WTRU) may connect with a first cell. The WTRU may send a first message to a network node that indicates sensing and location related information. The WTRU may receive a second message from the network node that indicates a sensing service associated with a sensing service area restriction (SSAR) list. The WTRU may determine that the sensing service is activated. The WTRU may perform idle mode cell selection and reselection procedure based on the sensing service associated with the SSAR list. The WTRU may determine the quality of the first cell falls below a threshold. The WTRU may connect with a second cell for reselection based on the SSAR list and determination of the quality of the first cell falling below the threshold.

Methods, systems, and devices for power savings in mobile devices operating in mobile communication technology are described. An example method of wireless communication includes transmitting, by a first network node to a wireless device, a block of system information, wherein the block of system information is a block of system information of a first type, a block of system information of a second type, or a block of system information of a third type, wherein the block of system information of the first type comprises cell-specific parameters for cell selection or cell reselection by the wireless device, wherein the block of system information of the second type comprises parameters for connection setup or service setup, and wherein the block of system information of the third type comprises parameters associated with a change in system information.

A non-contact real-time monitoring system of physiological signs based on millimeter-wave radar includes a millimeter-wave radar and multiple modules for processing radar signals. The millimeter-wave radar is configured to continuously transmit electromagnetic wave signals and simultaneously receive echo signals, perform frequency mixing processing on the echo signals to obtain an intermediate frequency signal, and process the intermediate frequency signal to obtain a radar four-dimensional data matrix. Human body physiological signs are monitored by analyzing body thoracic cavity micro-motion information in signals through the modules; a target echo is processed by adopting a constant false alarm rate detection algorithm, and invalid signals are filtered. A self-adaptive range cell selection algorithm based on short-time stability of respiratory signals is adopted to capture radar echoes reflecting physiological movement. Mixed human body physiological sign signals are processed by using a VMD algorithm, and key parameters in VMD are optimized by using a GWO algorithm.

To provide slice-recognition cell selection and random access techniques.SOLUTION: Techniques are described in relation to implementing slice-recognition cell selection or slice-recognition random access techniques. An exemplary wireless communication method includes implementing, by a communication device, a cell selection technique using one set of cell selection-related information associated with a slice. The one set of cell selection-related information is from a plurality of sets of cell selection-related information related to a plurality of slices, and each set of cell selection-related information is associated with one slice from the plurality of slices.SELECTED DRAWING: Figure 2

A communication method and apparatus are provided. The method includes: a terminal device receives first indication information from a first cell, and performs cell selection or reselection based on the first indication information, where the terminal device camps on the first cell, and the first indication information indicates the terminal device to perform cell selection or reselection, so that a first terminal device accesses another cell to reduce a quantity of terminal devices served by the first cell, and further reduce energy consumption of a communication system. Because the terminal device is indicated to perform cell selection or reselection, the terminal device can be enabled to perform normal communication.

The present disclosure relates to a 5G or 6G communication system for providing a higher data transmission rate than the previous 4G communication system, such as LTE. A method for operating a UE according to an embodiment of the present disclosure may comprise the steps of: receiving a radio resource control (RRC) connection release message from a base station; receiving, from the base station, system information comprising cell reselection-related configuration information of a UE supporting LR; determining whether a cell supporting a low power wake-up signal (LP-WUS) satisfies a cell selection criterion on the basis of the cell reselection-related configuration information of the UE supporting LR; and according to the determination, performing cell reselection for the cell supporting the LP-WUS.

A system and a method are disclosed for reducing power consumption in cell selection / reselection. The method includes transmitting, to a network node by the UE, a wake-up signal (WUS) in response to a trigger condition, receiving, from the network node by the UE, a confirmation message of a receipt of the WUS, and receiving an on-demand message via a Synchronization Signal Block (SSB) or a System Information Block Type 1 (SIB1) within a time window.