Method and apparatus for determining cell status

Abstract

In an embodiment of the present application, a method and device for determining a cell state are provided, the method for determining a cell state includes: a repeater receives relevant information of cell selection or reselection, and determines whether a cell can be a candidate cell in the cell selection or reselection process of the repeater according to the relevant information of cell selection or reselection, so that the repeater determines a candidate cell in the cell selection or reselection process according to the relevant information of cell selection or reselection, thereby ensuring flexible deployment of smart repeaters and reducing deployment costs.

Description

[Technical field]

[0001] TECHNICAL FIELD Embodiments of the present application relate to the field of communications technology. [Background technology]

[0002] 5G (fifth generation mobile communication technology) systems can provide wider bandwidth and higher data rates and support more types of terminals and vertical services than traditional 3G (third generation mobile communication technology) and 4G (fourth generation mobile communication technology) systems. Therefore, the deployment frequency of 5G systems is generally much higher than that of 3G and 4G systems. For example, 5G systems can be deployed in the millimeter wave band.

[0003] However, the higher the carrier frequency, the more serious the fading that the signal faces during transmission. Therefore, in the practical deployment of 5G systems, how to further enhance cell coverage, especially in the millimeter wave band, has become an urgent problem to be solved.

[0004] It should be noted that the above description of the technical background is provided to clearly and completely explain the technical aspects of the present invention and to facilitate the understanding of those skilled in the art. Just because these aspects are described in the background section of this application, it cannot be assumed that the technical aspects are known to those skilled in the art. Summary of the Invention [Problem to be solved by the invention]

[0005] In order to better solve the coverage problem of the cellular mobile communication system in the actual deployment, using a radio frequency repeater (RF relay / repeater) to amplify and repeat the communication signal between the terminal device and the network device is a relatively common deployment form. The radio frequency repeater is relatively widely applied in the actual deployment of the 3G system and the 4G system. In general, the radio frequency repeater is a device that amplifies and repeats the signal transmitted and received between the network device and the terminal device in the radio frequency domain.

[0006] To address the coverage issues faced during the deployment of 5G systems, one viable solution is to use radio frequency repeaters to enhance coverage. However, traditional repeaters do not have the ability to communicate with network devices and cannot directly obtain information about uplink / downlink settings from network devices. Therefore, although configuring such repeaters in 5G systems can improve signal strength, they are not flexible enough to respond to complex situation changes and cannot achieve the same effect as deploying the same radio frequency repeaters in 3G and 4G systems.

[0007] A smart repeater is an enhancement over conventional radio frequency repeaters, with the ability to receive and process side control information from the network. The side control information enables the smart repeater to perform its amplification and repeating operations in a more efficient manner, thereby reducing unwanted noise amplification, simplifying transmission and reception with better spatial directionality, and simplifying network integration.

[0008] However, the inventors have discovered that for scenarios in which smart relays are deployed, there is currently still no way for the smart relay to determine the cell status when the smart relay performs cell selection and / or reselection.

[0009] In regard to at least one of the above problems, an embodiment of the present application provides a method and apparatus for determining a cell state.

[0010] According to one aspect of an embodiment of the present application, there is provided a method for determining a cell state applied to a repeater, comprising the steps of: receiving cell selection or reselection related information; and A method for determining a cell status is provided, the method including determining whether a cell can be a candidate cell in a cell selection or reselection process of the repeater based on the cell selection or reselection related information.

[0011] According to another aspect of an embodiment of the present application, there is provided a method for determining a cell state, applied to a network device, comprising: generating cell selection or reselection related information used by a repeater to determine whether a cell can be a candidate cell in a cell selection or reselection process of the repeater; and A method for determining a cell status is provided, the method including transmitting information related to the cell selection or reselection.

[0012] According to another aspect of an embodiment of the present application, there is provided a method for determining a cell state, which is applied to a terminal device, comprising: receiving cell selection or reselection related information; and The method for determining a cell state includes ignoring repeater specific (dedicated) cell selection or reselection related information from the cell selection or reselection related information.

[0013] Regarding at least one of the above problems, an embodiment of the present application is a cell state determination device applied to a repeater, comprising: A receiving unit for receiving information related to cell selection or reselection; and a determining unit for determining whether the cell can be a candidate cell in the cell selection or reselection process of the repeater based on the cell selection or reselection related information.

[0014] According to one aspect of an embodiment of the present application, there is provided a cell state determination device, which is applied to a network device, comprising: a generating unit for generating cell selection or reselection related information for use by a relay to determine whether a cell can be a candidate cell in a cell selection or reselection process of the relay; and a transmitting unit for transmitting information related to the cell selection or reselection.

[0015] According to another aspect of an embodiment of the present application, there is provided a cell state determination device, which is applied to a terminal device, comprising: A receiving unit for receiving information related to cell selection or reselection; a determining unit for ignoring repeater-specific cell selection or reselection related information among the cell selection or reselection related information.

[0016] One of the beneficial effects of the embodiments of the present application is that based on relevant information of cell selection or reselection, the relay determines candidate cells in the cell selection or reselection process, thereby ensuring flexible deployment of smart relays and reducing deployment costs.

[0017] With reference to the following description and drawings, specific embodiments of the present application are disclosed in detail, showing the manner in which the principles of the present application may be employed. The embodiments of the present application are not to be understood as being limited in scope. Numerous changes, modifications and equivalents are encompassed by the embodiments of the present invention within the spirit and terms of the appended claims.

[0018] Features described and / or illustrated in one embodiment may be used in the same or similar manner in one or more other embodiments, or may be combined with or substituted for feature information in the other embodiments.

[0019] It should be emphasized that the term "comprising" when used in this specification refers to the presence of a feature, whole, step or assembly, but does not exclude the presence or addition of one or more other features, wholes, steps or assemblies.

[0020] Elements and features described in one figure or one embodiment of the examples of this application may be combined with elements and features shown in one or more other figures or embodiments. Furthermore, in the figures, like reference numerals may be used to indicate corresponding parts in the several figures and to designate corresponding parts used in multiple embodiments. [Brief description of the drawings]

[0021] [Figure 1] FIG. 2 is a schematic diagram of an application scenario according to an embodiment of the present application; [Diagram 2] FIG. 2 is a schematic diagram of a repeater according to an embodiment of the present application transmitting and receiving signals; [Diagram 3] FIG. 11 is another schematic diagram of a repeater transmitting and receiving signals according to an embodiment of the present application. [Figure 4] FIG. 2 is a schematic diagram of a method for determining a cell state according to an embodiment of the present application; [Diagram 5] FIG. 2 is a schematic diagram of a method for determining a cell state according to an embodiment of the present application; [Figure 6] FIG. 2 is a schematic diagram of a method for determining a cell state according to an embodiment of the present application; [Figure 7] FIG. 1 is a schematic diagram of a cell state determination device according to an embodiment of the present application; [Figure 8] FIG. 1 is a schematic diagram of a cell state determination device according to an embodiment of the present application; [Figure 9] FIG. 1 is a schematic diagram of a cell state determination device according to an embodiment of the present application; [Figure 10] FIG. 2 is a schematic diagram of a network device according to an embodiment of the present application; [Figure 11] FIG. 2 is a schematic diagram of a repeater according to an embodiment of the present application. [Figure 12] FIG. 2 is a schematic diagram of a terminal device according to an embodiment of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] The foregoing and other features of the present application will become apparent from the following specification with reference to the drawings. Certain embodiments of the present application are specifically disclosed in the specification and drawings, illustrating some of the embodiments in which the principles of the present application may be employed. The present application is not limited to the disclosed embodiments, but rather, the present application includes all modifications, variations, and equivalents falling within the scope of the appended claims.

[0023] In the examples of the present application, the terms "first", "second", etc. are used to distinguish different elements from the title, but do not indicate the spatial arrangement, temporal order, etc. of these elements, and these elements should not be limited to these terms. The term "and / or" includes any and all combinations of one or more of the associated listed terms. Terms such as "including", "comprising", "having", etc. refer to the presence of stated features, elements, parts or assemblies, but do not exclude the presence or addition of one or more other features, elements, parts or assemblies.

[0024] In the examples of this application, the singular forms "a," "the," and the like, include the plural and should be understood broadly to mean "a type of," or "a type of," and not limited to the meaning of "one." Furthermore, the term "said" includes both the singular and the plural, unless the context clearly indicates otherwise. Furthermore, the term "according to" should be understood as "at least in part according to," and the term "based on" should be understood as "at least in part based on," unless the context clearly indicates otherwise.

[0025] In embodiments of the present application, the terms "communications network" or "wireless communication network" refer to a network conforming to any suitable communications standard, such as, for example, Long Term Evolution (LTE), Long Term Evolution Advanced (LTE-A, LTE-Advanced), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0026] Moreover, communication between devices in the communication system may be accomplished via any suitable generation of communication protocols, including, but not limited to, 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G, New Radio (NR), etc., and / or other currently known or later developed communication protocols.

[0027] In the embodiments of the present application, the term "network equipment" refers to a device that allows a terminal device to access a communication network and provides services to the terminal device in a communication system, for example. The network equipment may include, but is not limited to, devices such as a base station (BS), an access point (AP), a transmission reception point (TRP), a broadcast transmitter, a mobile management entity (MME), a gateway, a server, a radio network controller (RNC), a base station controller (BSC), etc.

[0028] Among them, the base station may include, but is not limited to, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), and a 5G base station (gNB), etc., as well as a Remote Radio Head (RRH), a Remote Radio Unit (RRU), a relay, or a low power node (e.g., femto, pico, etc.), an Integrated Access and Backhaul (IAB) node, or an IAB-DU, or an IAB-donor. Furthermore, the term "base station" may include some or all of the functions thereof, and each base station may provide communication coverage for a particular geographic area. The term "cell" may refer to a base station and / or its coverage area depending on the context in which the term is used. The terms "cell" and "base station" may be interchangeable unless confusion arises.

[0029] In the embodiments of the present application, the term "User Equipment" (UE) or "Terminal Equipment" (TE) refers to an apparatus that accesses a communication network and receives network services via, for example, a network device. The terminal apparatus may be fixed or mobile, and may be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, etc.

[0030] Among them, the terminal device may include, but is not limited to, a mobile phone, a personal digital assistant (PDA), a wireless modulation / demodulation device, a wireless communication device, a handheld device, a machine-type communication device, a laptop computer, a cordless phone, a smartphone, a smart watch, a digital camera, etc.

[0031] Furthermore, in a scenario such as the Internet of Things (IoT), the terminal device may be a device or apparatus that performs monitoring or measurement, including, but not limited to, a Machine Type Communication (MTC) terminal, an in-vehicle communication terminal, a Device to Device (D2D) terminal, a Machine to Machine (M2M) terminal, etc.

[0032] Furthermore, the term "network side" or "network device side" refers to the side of a network, which may be a base station or may include one or more of the network devices mentioned above. The term "user side" or "terminal side" or "terminal device side" refers to the side of a user or terminal, which may be a UE or may include one or more of the terminal devices mentioned above. In this specification, unless otherwise specified, "device" may refer to a network device or may refer to a terminal device.

[0033] Hereinafter, a scenario in an embodiment of the present invention will be described through an example, but the present invention is not limited thereto.

[0034] FIG. 1 is a schematic diagram of an application scenario according to an embodiment of the present application. As shown in FIG. 1, for convenience of explanation, one network device (e.g., 5G base station gNB or gNB-CU) 101, one repeater 102, and one terminal device (UE) 103 are taken as an example for explanation, but the present application is not limited thereto. As shown in FIG. 1, the terminal device 103 connects to the network device 101 to perform communication. In order to improve communication quality, a signal between the terminal device 103 and the network device 101 is processed (e.g., amplified, etc.) via the repeater 102.

[0035] As shown in Figure 1, radiated or conducted RF carriers are received, processed and transmitted in the downlink (from network equipment to terminal equipment) and uplink (from terminal equipment to network equipment) directions. This processing includes power amplification, beamforming, propagation environment reconstruction, etc. In an operating band where only the downlink or uplink is designated, only the designated uplink or downlink is repeated.

[0036] 2 and 3 are schematic diagrams of transmitting and receiving signals by repeaters, where as shown in FIG. 2, the repeaters include omnidirectional or fixed directional (non-time-adaptive) Tx / Rx, or repeaters capable of time-adaptation, and as shown in FIG. 3, the beams for transmitting radio frequency signals are controlled by a network device (e.g., a RAN node).

[0037] In the embodiment of the present application, existing or future traffic may be transmitted between the network device and the terminal device, including, but not limited to, enhanced mobile broadband (eMBB), massive machine-based communications (mMTC), highly reliable and low latency communications (URLLC), and vehicle-to-everything (V2X) communications.

[0038] In FIG. 1, the repeater may repeat a signal between a network device and a terminal device, but the present application is not limited thereto. For example, the repeater may function as a second device that can transfer a signal between a first device and a third device and directly communicate with the first device and / or the third device. The first device to the third device may be any device in the above-mentioned network. In the following embodiment, an example will be described in which the first device is a network device and the third device is a terminal device.

[0039] In the embodiment of the present application, a beam may be expressed as a lobe, a reference signal (RS), a transmission configuration indication (TCI), a spatial domain filter, etc. Alternatively, it may be expressed as a beam index, a lobe index, a reference signal index, a transmission configuration indication index, a spatial domain filter index, etc. The above reference signal may be, for example, a channel state information reference signal (CSI-RS), a sounding reference signal (SRS), an RS used by a relay station, an RS transmitted by a relay station, etc. The above TCI may also be expressed as a TCI state.

[0040] In the embodiment of the present application, the repeater may be referred to as a network controlled repeater (NCR), a reconfigurable intelligent surfaces (RIS), a repeater, a radio frequency repeater, a repeater device, a radio frequency repeater device, a repeater node, a repeater node, a repeater node, a smart repeater, a smart repeater, a smart repeater node, a smart repeater node, a smart repeater node, etc., and the repeater may be a node, a device, an entity, etc., and the present application is not limited thereto.

[0041] In an embodiment of the present application, the network device may be a device of a serving cell of a terminal device, a device of a cell in which a repeater is located, a device of a serving cell of the repeater, or a parent node of the repeater. This application does not limit the name of the repeater, and any device that realizes the above functions is included in the scope of the repeater of this application.

[0042] Currently, a terminal device receives system information broadcast by a network device, including relevant information for cell selection and / or reselection, and the terminal device may determine whether a cell state is forbidden or permitted, or reserved or unreserved based on the relevant information; in a scenario where a smart relay is deployed, when the smart relay is performing cell selection and / or reselection, if some cell states are set as, for example, forbidden or reserved, the relay cannot select and reside in such cells according to the operation of the existing terminal device, limiting the application scenarios of the relay and increasing the deployment cost.

[0043] In regard to the above-mentioned problems, various embodiments according to the examples of the present application will be described below with reference to the drawings. These embodiments are merely illustrative and do not limit the present application.

[0044] Example of the first aspect In the embodiment of the present application, a method for determining cell status is provided and explained from the repeater side.

[0045] FIG. 4 is a schematic diagram of a method for determining a cell state according to an embodiment of the present application. As shown in FIG. 4, the method includes: 401: Receiving cell selection or reselection related information; and 402: Determining whether a cell can be a candidate cell in a cell selection or reselection process of the relay based on relevant information for cell selection or reselection.

[0046] Thereby, based on the relevant information of cell selection or reselection, the relay can determine candidate cells in the cell selection or reselection process, thereby ensuring flexible deployment of smart relays and reducing deployment costs.

[0047] It should be noted that the above FIG. 4 merely provides a schematic description of an embodiment of the present application, and the present application is not limited thereto. For example, the execution procedure between each operation can be appropriately adjusted, and some other operations can be added or some operations can be omitted. Those skilled in the art can appropriately modify the above content without being limited to the description of FIG. 4.

[0048] For ease of understanding, the cell selection and reselection process will be described in an exemplary manner below first.

[0049] In some embodiments, in the process of the repeater performing cell selection and / or cell reselection, the repeater may receive control information from a network device via the repeater or a specific module within the repeater, such as information on time division duplexing (TDD) settings, beamforming, etc., from the network device, and this application is not limited thereto.

[0050] Regarding the cell selection process, In some embodiments, the cell selection process is required when a repeater transitions from RM-DEREGISTERED to REGISTERED, or from CM-IDEL to CM-CONNECTED, and from CM-CONNECTED to CM-IDEL.

[0051] In some embodiments, the specific process of cell selection includes: A non-access stratum (NAS stratum) of the repeater determines the selected public land mobile network (PLMN) and equivalent PLMNs, where in a scenario where the repeater is deployed or controlled by a RAN node, the repeater may include a process whereby it is not necessary to obtain the above PLMN-related information via the NAS stratum.

[0052] Furthermore, the cell selection process includes an initial cell selection process and an information storing cell selection process, in which the initial cell selection process includes the repeater scanning all radio frequency channels in the frequency band, and the repeater performing cell search for each frequency, and the information storing cell selection process includes the repeater receiving and storing information (and optional cell parameter information) on the frequencies from the previous measurement setting or the previous detected cell, and the repeater performing cell search preferentially on these frequencies. Wherein, for each carrier frequency, in the specific cell search process, the repeater determines the cell with the strongest energy value among cell defining-synchronization signal and PBCH block (CD-SSBs) based on the synchronization raster, and further reads the system information of this cell to determine the PLMN(s) of the cell.

[0053] The repeater then determines one suitable cell, if it cannot determine one suitable cell, it attempts to determine one acceptable cell, and if one suitable cell or only one acceptable cell is found, it stays on that cell and starts the cell reselection process.

[0054] For example, a suitable cell is a cell whose measured cell attributes satisfy the cell selection criteria. Or, the cell PLMN is a selected PLMN, a registered PLMN or an equivalent PLMN. The cell is not barred (allowed) or reserved, and the cell is not included in a tracking area of ​​the "Roaming Prohibited Tracking Area" list. Here, the cell is not barred or reserved.

[0055] For example, an acceptable cell is one whose measured cell attributes meet the cell selection criteria and the cell is not barred.

[0056] About the Cell Reselection Process In some embodiments, when the relay is in an RRC idle state or an RRC inactive state, the specific process of cell reselection is as follows: For a particular carrier frequency, the repeater may determine the cell with the strongest energy value among the cell defining-Synchronization signals and PBCH blocks (CD-SSBs) based on a Synchronization Raster.

[0057] In addition, the repeater also measures the serving cell and neighboring cell attributes to ensure the cell selected by the reselection process. Here, the search and measurement of the inter-frequency neighboring cells may indicate a specific carrier frequency for the search and measurement.

[0058] Furthermore, cell reselection determines the cell in which the repeater should reside based on the following cell reselection criteria:

[0059] - Reselection of the same frequency is based on cell ranking.

[0060] -Inter-frequency reselection is based on absolute priorities, with the repeater attempting to reside on the highest preferred frequency available.

[0061] The serving cell can provide a neighbor cell list (NCL) that handles specific cases of same-frequency and different-frequency neighboring cells.

[0062] -Black lists can be provided to prevent repeaters from being re-selected in certain same-frequency and different-frequency neighboring cells.

[0063] - White lists can be provided in which the repeater is required to reselect to only certain same-frequency and different-frequency neighbor cells.

[0064] Cell reselection can be speed dependent.

[0065] -Business-specific prioritization.

[0066] - The cell is a non-prohibited cell.

[0067] That is, in the cell selection and reselection process, the premise for a cell to be a candidate for cell selection or reselection, i.e., the condition that must be met at least to be a candidate cell, is that the repeater determines (deems) that the access state of the cell is allowed, not barred, supported, or reserved.

[0068] In addition, the above-mentioned candidate cell may be deemed to be accessible, deemed to be not barred, deemed to be suitable, deemed to be an acceptable cell, deemed to be normally resident, deemed to be selectable and / or reselectable, etc. Correspondingly, even if it is not a candidate cell, it may be deemed to be barred, deemed to be not a suitable cell, deemed to be an acceptable cell, not to reselect the cell, excluded from candidates for cell selection and / or cell reselection, excluded from candidates for cell selection and / or cell reselection for a predetermined time (e.g., 300 seconds), etc. The embodiment of the present application is not limited to this description.

[0069] The following describes how a repeater determines the access state of a cell.

[0070] In some embodiments, the network device conveys relevant information for the cell selection or reselection through a main system information block (MIB) and / or a system information block (SIB), where the system information block includes SIB1 and other SIBs, such as SIB2 and SIB3, and the specific contents of SIB1 and other SIBs may refer to the prior art, but the present application is not limited thereto.

[0071] In some embodiments, the cell selection or reselection related information may include existing cell status information, and / or cell restriction information, and / or same frequency reselection information, or may not include newly added cell status information, and / or cell restriction information, and / or same frequency reselection information, and the repeater ignores the cell selection or reselection related information (existing) and / or determines whether the cell can be a candidate cell in the repeater's cell selection or reselection process. Or, the repeater uses the cell selection or reselection related information (existing) to determine whether the cell can be a candidate cell in the repeater's cell selection or reselection process. Or, the repeater determines whether the cell can be a candidate cell in the repeater's cell selection or reselection process via repeater-specific cell selection or reselection related information (newly added). Each of these will be described below. (1) The repeater ignores existing information related to cell selection or reselection and / or determines whether a cell is allowed, not forbidden, supported or reserved in the cell selection or reselection process.

[0072] The above "ignore" may be replaced with "not apply / applicable, not use, skip, etc.", but the embodiments of the present application are not limited thereto.

[0073] In some embodiments, the repeater ignoring information related to cell selection or reselection includes ignoring existing cell state information, cell restriction information, and / or same frequency reselection information that indicates cell state information, cell restriction information, and / or same frequency reselection information configured by the network device for the terminal device and / or IAB-MT, i.e., cell state information, cell restriction information, and / or same frequency reselection information that applies to the terminal device and / or IAB-MT.

[0074] In some embodiments, the cell status information includes at least one of the following information:

[0075] Cell status information that applies to a normal terminal device (user equipment), the status information of a normal terminal device may be indicated by a specific field (area) in a MIB message, for example, a "cellBarred" field in a MIB message, where if the "cellBarred" field is "barred" ("barred"), the meaning is considered to be that this cell is barred or barred by a normal terminal, and if the "cellBarred" field is "notBarred" ("notBarred"), the meaning is considered to be that this cell is not barred or not barred by a normal terminal.

[0076] The cell status information applied to the degraded terminal device (RedCap UE), the cell status information of the degraded terminal device (RedCap UE) may be indicated by a specific field (area) in the SIB1 message, for example, the "cellBarredRedCap1Rx-r17" and "cellBarredRedCap2Rx" fields in the SIB1 message, where if the "cellBarredRedCap1Rx-r17" field is "barred", the cell is considered to be barred for RedCap UEs with one Rx branch or barred for RedCap UEs with one Rx branch. If the "cellBarredRedCap2Rx-r17" field is "barred", the cell is considered to be barred for RedCap UEs with two Rx branches or barred for RedCap UEs with two Rx branches.

[0077] Cell status information that applies to Integrated Access Backhaul (IAB) or IAB-Mobile Terminal (IAB-MT), where the cell status information of IAB or IAB-MT may be indicated by an IAB-related field (field) in the SIB1 message, for example, the "iab-Support" field in the SIB1 message. If the "iab-Support" field is "true", then this cell can be used for IAB (supports) and is a supporting cell for the IAB-node; if this field does not appear, then this cell cannot be used for IAB, i.e., the IAB-node is not supported.

[0078] In some embodiments, the cell restriction information includes cell restriction information applied to a terminal device (including a normal terminal device and a RedCap UE) and / or an IAB-MT, and the cell restriction information applied to the terminal device and / or the IAB-MT includes at least one of a reserved state in which a cell is used by an operator (cellReservedForOperatorUse), a reserved state in which a cell is used for other purposes (cellReservedForOtherUse), and a reserved state in which a cell is used in the future (cellReservedForFutureUse). Further, the restriction information may be carried via a SIB1 message, for example, with respect to cellReservedForOperatorUse, the cell restriction information is not applied to an IAB-MT having a non-public network (NPN) function, but is applied to a terminal device (a normal terminal device and / or a Redcap UE). For cellReservedForOtherUse, this information is ignored when the IAB-MT makes a cell barring decision, but the IAB-MT with NPN capability takes this information into account when determining an NPN-only cell; for cellReservedForFutureUse, this information is not applied to the IAB-MT, but is applied to the terminal device. If the field in the restriction information area is "not reserved" or "true", the meaning is considered to be that this cell is not reserved or that this terminal device and / or IAB-MT is supported, and if the field is "reserved" or absent, the meaning is considered to be that this cell is reserved or that this terminal device and / or IAB-MT is not supported.

[0079] In some embodiments, the above same frequency reselection information includes same frequency reselection information applied to a normal terminal device and / or same frequency reselection information applied to a RedCap UE.

[0080] For example, the same frequency reselection information applied to the terminal device (including normal terminal device and RedCap UE) is carried by a MIB message, e.g., an "intraFreqReselection" field in the MIB message, and for each cell on the same frequency, if the highest-ranked cell is barred or deemed barred by the terminal device, e.g., if the "cellBarred" field in the MIB message for cell 1 is "barred" and the value of the "intraFreqReselection" field in the MIB message is "allowed", cell selection or reselection may continue in another cell on the same frequency as cell 1, e.g., cell 2. Otherwise, if the value of the "intraFreqReselection" field is "not allowed", cell selection or reselection cannot be performed in another cell on the same frequency as cell 1, e.g., cell 2.

[0081] Also, for example, the same frequency reselection information applied to the degraded terminal device (RedCap UE) is carried via a SIB1 message, for example, an "intraFreqReselectionRedCap-r17" field in the SIB1 message, to control the RedCap UE to select or reselect in other cells of the same frequency cell if the highest ranked cell is forbidden or deemed forbidden by the RedCap UE. Values ​​include "allowed" and "not allowed" (similar to the above embodiment, so the description is omitted here). If this field does not exist, the RedCap UE considers this cell to be forbidden, i.e., this cell does not support RedCap.

[0082] For example, the repeater ignores the cell status information cellBarred and the intraFreqReselection information that are applied to normal terminal devices among the existing MIB messages. Take the following fields as an example.

[0083] [Table 1] Here, the "cellBarred" field may be set to be ignored by the repeater, and / or the "intraFreqReselection" field may be set to be ignored by the repeater. For example,

[0084] [Table 2] As mentioned above, when a repeater receives a MIB message, it ignores the "cellBarred" field in the MIB and assumes that the cell is not barred, and / or it ignores the "intraFreqReselection" field in the MIB and assumes that if this cell or a higher ranked cell on the frequency where this cell is located is barred or is considered to be barred, then the intra-frequency cells of this cell are not barred or are immediately considered to be possible candidate cells for cell reselection.

[0085] In addition, during the cell reselection process, if the cell state is "barred" or the cell state is treated as "barred", if the repeater is able to obtain the current cell state (not because it is not able to obtain a cell whose cell state is treated as "barred"), the repeater shall ignore the "intraFreqReselection" field in the MIB message (regardless of whether the field is set to allowed) and may select another cell on the same frequency if the reselection criteria are met.

[0086] And / or, for example, the relay ignores the cell restriction information in the SIB1 message. Take the following fields as an example:

[0087] [Table 3]

[0088] [Table 4] Here, the "cellReservedForOtherUse" field may be set to be ignored by the repeater, and / or the "cellReservedForFutureUse-r16" field may be set to be ignored by the repeater, and / or the "cellReservedForOperatorUse" field may be set to be ignored by the repeater. For example,

[0089] [Table 5]

[0090] [Table 6] As stated above, when the relay receives the SIB1 message, it shall immediately consider this cell as reserved, ignoring the above "cellReservedForOtherUse" field, and / or it shall immediately consider this cell as reserved, ignoring the above "cellReservedForFutureUse-r16" field setting, and / or it shall immediately consider this cell as reserved, ignoring the above "cellReservedForOperatorUse" field setting.

[0091] As can be seen from the above embodiments, the repeater ignores relevant information for cell selection or reselection applied to the mobile terminal broadcast by the network device, and the repeater reselects and resides in a cell that is deemed prohibited or of limited use by the terminal device, thereby ensuring flexible deployment of the repeater and reducing costs.

[0092] (2) The repeater uses the cell selection or reselection related information (existing) to determine whether the cell is considered by the repeater as allowed, not prohibited, supported, or reserved in the cell selection or reselection process.

[0093] In some embodiments, the repeater's use of relevant information for cell selection or reselection includes using existing cell state information, cell restriction information, and / or same frequency reselection information that indicates cell state information, cell restriction information, and / or same frequency reselection information configured by the network device for the terminal device and / or IAB-MT, i.e., cell state information, cell restriction information, and / or same frequency reselection information that applies to the terminal device and / or IAB-MT.

[0094] In some embodiments, the repeater uses cell status information applied in the IAB or IAB-MT to determine whether a cell is considered by the repeater as allowed, not forbidden, supported, or reserved in the cell selection or reselection process.

[0095] For example, if a field (e.g., iab-support) representing cell status information applicable to IAB or IAB-MT is present, the relay determines that the cell supports a relay and can be a candidate cell in the cell selection or reselection process of the relay, and if a field (e.g., iab-support) representing cell status information applicable to IAB or IAB-MT is not present, the relay determines that the cell does not support a relay and / or cannot be a candidate cell in the cell selection or reselection process of the relay. Alternatively, if a field (e.g., iab-support) representing cell status information applicable to IAB or IAB-MT is not present, the relay determines that the cell supports a relay and can be a candidate cell in the cell selection or reselection process of the relay, and if a field (e.g., iab-support) representing cell status information applicable to IAB or IAB-MT is present, the relay determines that the cell does not support a relay and / or cannot be a candidate cell in the cell selection or reselection process of the relay.

[0096] In some embodiments, the repeater uses the terminal device's existing cell restriction information to determine whether a cell is considered by the repeater as allowed, not forbidden, supported, or reserved in a cell selection or reselection process.

[0097] For example, the repeater uses the cell restriction information in the SIB1 message. Take the following fields as an example:

[0098] [Table 7]

[0099] [Table 8]

[0100] [Table 9] For example, the repeater may use the "cellReservedForFutureUse" field.

[0101] [Table 10] As described above, when the relay receives the SIB1 message, if the "cellReservedForFutureUse" field is present and is "true", the relay considers this cell to be reserved (or a possible candidate cell in the cell selection or reselection process) and the normal terminal device considers this cell to be forbidden; if the "cellReservedForFutureUse" field does not appear, the relay considers this cell to be forbidden and the normal terminal device considers this cell to be reserved (or a possible candidate cell in the cell selection or reselection process).

[0102] And / or, for example, the repeater may use the "cellReservedForOtherUse" field.

[0103] [Table 11] As described above, when the repeater receives the SIB1 message, if the "cellReservedForOtherUse" field is present and is "true", the repeater considers this cell to be reserved (or a possible candidate cell in the cell selection or reselection process) and the normal terminal device considers this cell to be barred; if the "cellReservedForOtherUse" field is not present, the repeater considers this cell to be barred and the normal terminal device considers this cell to be reserved (or a possible candidate cell in the cell selection or reselection process).

[0104] And / or, for example, the repeater may use the "cellReservedForOperatorUse" field.

[0105] [Table 12] As described above, when the repeater receives the SIB1 message, if the "cellReservedForOperatorUse" field is "reserved", the repeater considers this cell to be reserved (or a possible candidate cell in the cell selection or reselection process) and a normal terminal device considers this cell to be forbidden, and if the "cellReservedForOperatorUse" field is "notReserved", the repeater considers this cell to be forbidden and a normal terminal device considers this cell to be reserved (or a possible candidate cell in the cell selection or reselection process).

[0106] In some embodiments, the repeaters may use a combination of two or three of the above three fields to jointly determine whether a cell is reserved (or a candidate cell in a cell selection or reselection process). For example, the field "cellReservedForFutureUse" is "true" and the field "cellReservedForOperatorUse" is "reserved". Otherwise, the repeaters consider this cell to be barred and normal terminal devices consider this cell to be reserved (or a candidate cell in a cell selection or reselection process). No specific examples are given here.

[0107] The above is merely an example, and the repeater may use other existing cell selection or reselection related information, but no specific examples are given here.

[0108] As can be seen from the above embodiments, the repeater uses relevant information for cell selection or reselection applied to the terminal device, and the repeater selects or reselects and resides in a cell that is deemed prohibited or of limited use by the terminal device, thereby ensuring flexible deployment of the repeater and reducing costs. (3) The repeater determines whether a cell is allowed, prohibited, supported, or reserved in the repeater's cell selection or reselection process through the cell selection or reselection related information (newly added) identified by the repeater.

[0109] In some embodiments, "repeater specific cell selection or reselection related information" may be indicated in the MIB and / or SIB1. The repeater specific cell selection or reselection related information is a newly added information element (IE) in the above related information, and the cell status can be indicated by obtaining a value (type) by a field, and / or the cell status can be indicated by the appearance and non-appearance of this information element, for example, the repeater specific cell selection or reselection related information is used to indicate whether a cell (and / or a same-frequency cell) can be a candidate cell in the cell selection or reselection process of the repeater, and / or to indicate whether a cell (and / or a same-frequency cell) supports a repeater, and / or to indicate whether the cell (and / or a same-frequency cell) is considered to be prohibited in the cell selection or reselection process by the repeater, and / or to indicate whether the cell (and / or a same-frequency cell) is considered to be reserved in the cell selection or reselection process by the repeater, etc.

[0110] In addition, the values ​​(types) obtained by the following fields may be "barred" / "not barred", "reserved" / "not reserved", "true", "supported", "allowed" / "not allowed", etc., and the names of the following fields may be replaced with other names, but the embodiments of the present application are not limited thereto. The following describes examples of related information for repeater-specific cell selection or reselection.

[0111] In some embodiments, the cell selection or reselection related information may or may not include repeater specific cell status information and / or cell restriction information used to indicate whether the cell can be a candidate cell in the repeater's cell selection or reselection process, and / or to indicate whether the cell supports a repeater, and / or to indicate whether the cell is prohibited in the repeater's cell selection or reselection process, and / or to indicate whether the cell is considered reserved in the repeater's cell selection or reselection process.

[0112] In some embodiments, the repeater specific cell status information is used to indicate whether the cell is considered by the repeater to be forbidden in a cell selection or reselection process, the repeater specific cell restriction information is used to indicate whether the cell is considered by the repeater to be reserved in a cell selection or reselection process, etc. The repeater specific cell status information and cell restriction information are used to indicate whether the cell can be a candidate cell in the repeater's cell selection or reselection process and / or whether the cell supports a repeater.

[0113] In some embodiments, the state of a cell may be indicated according to the value taken (type) by a field.

[0114] For example, repeater specific cell status information is introduced into the MIB, for example the following fields:

[0115] [Table 13]

[0116] [Table 14] As described above, the spare field (1 bit) in the MIB message is changed to the "NCR-cellBarred" field used to indicate whether the cell is barred from the repeater. If the "NCR-cellBarred" field is "barred", the cell is barred from the repeater. If the "NCR-cellBarred" field is "notBarred", the cell is not barred from the repeater. Furthermore, in the case of a normal terminal device or an IAB-MT device, this field is ignored.

[0117] In some embodiments, the presence and absence of information elements may indicate the state of a cell.

[0118] For example, repeater specific cell restriction information is introduced into the MIB, for example the following fields:

[0119] [Table 15]

[0120] [Table 16] As mentioned above, the spare field (1 bit) of the MIB message is changed to a "cellForNCR" field used to indicate whether the cell supports a repeater or not, and if the "cellForNCR" field is "true", this cell supports NCR or supports the cell for the repeater, and if the "cellForNCR" field does not appear, this cell does not support NCR for the repeater, and vice versa. Furthermore, a normal terminal device or IAB-MT device ignores this field.

[0121] Alternatively, repeater specific cell status information and cell restriction information may be introduced into the MIB, for example with the following fields:

[0122] [Table 17]

[0123] [Table 18] As mentioned above, the spare field (1 bit) of the MIB message is used to indicate whether the cell supports repeaters and / or whether the cell is barred to repeaters; if the "NCR-Support" field is "true", the cell supports NCR to repeaters and is reserved or not barred; if the "NCR-Support" field does not appear, the cell does not support NCR to repeaters or is barred, and vice versa. Furthermore, a normal terminal device or IAB-MT device ignores this field.

[0124] In some embodiments, the repeater specific cell selection or reselection related information includes repeater specific same-frequency reselection information that can be used to indicate whether a cell that is on the same frequency as a cell considered to be forbidden (highest ranking) can be a candidate cell in the repeater's cell selection or reselection process, or whether a cell selection or reselection can be performed in a cell that is on the same frequency as a cell considered to be forbidden (highest ranking).

[0125] For example, repeater specific same frequency reselection information is introduced into the MIB, with the following fields as examples:

[0126] [Table 19]

[0127] [Table 20] As described above, the spare field (1 bit) in the MIB message is changed to the "NCR-intraFreqReselection" field, which is used to indicate whether a cell on the same frequency as a forbidden cell can be a candidate cell in the repeater's cell selection or reselection process. Here, for each cell with the same frequency, if the highest ranked cell, for example, cell 1, has a "cellBarred" field in the MIB message that is "barred" and the value of the "NCR-intraFreqReselection" field in the MIB message is "allowed," then the repeater considers cell 1 to be forbidden, and for another cell with the same frequency as cell 1, for example cell 2, the repeater considers cell 2 to be a candidate cell in the cell selection or reselection process, and may continue cell selection / reselection in cell 2, for example; otherwise, if the value of the "NCR-intraFreqReselection" field is "not allowed," then for another cell with the same frequency as cell 1, for example cell 2, the repeater considers cell 2 to be a candidate cell in the cell selection or reselection process, i.e., the repeater does not continue cell selection or reselection in cell 2 any more. Furthermore, in a normal terminal device or IAB-MT device, this field is ignored.

[0128] In addition, in the cell reselection process, if the cell state is "barred" or the cell state is treated as "barred", if the repeater can obtain the current cell state (not because it cannot obtain a cell whose cell state is treated as "barred"); If the "NCR-intraFreqReselection" field in the MIB message or SIB1 message is set to "allowed", other cells on the same frequency can be candidate cells and the NCR may select other cells on the same frequency if the reselection criteria are met.

[0129] If the "NCR-intraFreqReselection" field in the MIB message is set to "allowed" but the relay has the current cell state "barred" because it could not get a SIB1 message, the relay may exclude this cell as a candidate cell for cell selection or reselection for up to 300 seconds. Otherwise, for example, if the "NCR-intraFreqReselection" field in the MIB message is set to "allowed" and the relay has the current cell state "barred" because it could not get a SIB1 message, the relay shall exclude this cell as a candidate cell for cell selection or reselection for up to 300 seconds.

[0130] If the "NCR-intraFreqReselection" field in the MIB message is set to "not allowed" and the current cell state is "barred" because the repeater could not get a SIB1 message, the repeater may exclude this cell as a candidate cell for cell selection or reselection for up to 300 seconds. Otherwise, for example, if the "NCR-intraFreqReselection" field in the MIB message is set to "not allowed" and the repeater has the current cell state "barred" because the repeater could not get a SIB1 message, the repeater shall exclude this cell as a candidate cell for cell selection / reselection for 300 seconds. Alternatively, the repeater shall exclude this cell as a candidate cell for cell selection or reselection for 300 seconds. The repeater shall not reselect another cell that is on the same frequency as the barred cell and shall not exclude a cell on the same frequency as the barred cell as a candidate cell for cell selection / reselection for 300 seconds. Alternatively, the NCR may select another cell that is on the same frequency if reselection criteria are met.

[0131] For example, relay specific cell status information and / or cell restriction information is introduced in the SIB1 message.

[0132] Here, the manner in which repeater-specific cell status or cell restriction information is introduced into the SIB1 message is similar to the manner in which repeater-specific cell status or cell restriction is introduced into the above-mentioned MIB, for example, cellReservedForNCR, cellForNCR, NCR-Support, etc. are introduced into the cellAccessRelatedInfo shown above, and the value of this field indicates whether or not this cell is considered to be reserved in the repeater's cell selection or reselection process, or whether or not it supports NCR, etc., and no specific examples are given here.

[0133] In some embodiments, if the system information block (SIB1) indicates multiple PLMNs or NPNs, the relay specific cell status information and / or cell restriction information may be specific per PLMN or per NPN, or the relay specific cell status information and / or cell restriction information may be common to the multiple PLMNs or NPNs.

[0134] For example, when the "NCR-Support" field is employed to indicate "repeater-specific cell status information and / or cell restriction information", the repeater-specific cell status information and / or cell restriction information may be specific for each PLMN or each NPN, or may be common to the multiple PLMNs or NPNs.

[0135] For example, relay specific cell status and cell restriction information is introduced in the SIB1 message, taking the fields related to the first PLMN or NPN as follows:

[0136] [Table 21]

[0137] [Table 22]

[0138] [Table 23] For example, the PLMN-IdentityInfo field and / or the "NPN-IdentityInfoList" field of the SIB1 message may include an "NCR-Support" field, which is used to indicate whether the cell supports a repeater and / or whether the cell is barred for a repeater; if the "NCR-Support" field is "true", then for this repeater, the cell supports NCR and the cell is not barred. If the "NCR-Support" field does not appear, then for this repeater, the cell does not support NCR or is barred, and vice versa. Furthermore, a normal terminal device or an IAB-MT device may ignore this field.

[0139] In some embodiments, if all related information matching the first PLMN and / or the first NPN does not include the repeater specific cell status information and / or cell restriction information (e.g., none of them includes the "NCR-Support" field), it is determined that the cell does not support NCR (is prohibited) and / or cannot be a candidate cell in the cell selection or reselection process of the repeater. If at least one of the related information matching the first PLMN and / or the first NPN includes the repeater specific cell status information and / or cell restriction information (including the "NCR-Support" field), it is determined that the cell supports NCR and / or can be a candidate cell in the cell selection or reselection process of the repeater. Here, the first PLMN includes at least one of the selected PLMN, the registered PLMN, and the PLMN of the equivalent PLMN list, and includes at least one of the selected SNPN, the registered SNPN, and the SNPN of the equivalent SNPN list.

[0140] Or, if all the related information matching the first PLMN and / or the first NPN does not include the repeater specific cell status information and / or cell restriction information, determine that the cell supports NCR and / or can be a candidate cell in the cell selection or reselection process of the repeater. If at least one of the related information matching the following first PLMN and / or the first NPN includes the repeater specific cell status information and / or cell restriction information, determine that the cell does not support NCR (is prohibited) and / or can be a candidate cell in the cell selection or reselection process of the repeater.

[0141] For example, the related information matching the first PLMN means a field (e.g., PLMN-IdentityInfo field, hereinafter referred to as a matching field) including a PLMN-Identity where the PLMN-Identity is the same as the selected PLMN (or a registered PLMN, or a PLMN in an equivalent PLMN list), and similarly, the related information matching the first NPN means a field (e.g., NPN-IdentityInfo field) including an NPN-Identity where the NPN-Identity is the same as the selected SNPN (or a registered SNPN, or an SNPN in an equivalent SNPN list).

[0142] For example, all the relevant information matching with the first PLMN and / or the first NPN does not include the repeater specific cell status information and / or cell restriction information, indicating that all the matching fields do not include the repeater specific cell status information and / or cell restriction information (e.g., "NCR-Support"). At least one of the relationships matching with the first PLMN and / or the first NPN includes the repeater specific cell status information and / or cell restriction information, indicating that at least one matching field includes the repeater specific cell status information and / or cell restriction information (e.g., "NCR-Support").

[0143] As can be seen from the above embodiments, the network device broadcasts repeater-specific cell selection or reselection related information, and the repeater selects or reselects and resides in a cell that is deemed prohibited or restricted for use by the terminal device, thereby ensuring flexible deployment of repeaters and reducing costs.

[0144] The above describes how the repeater determines whether the state of a cell is allowed or not prohibited, reserved or supported based on information related to cell selection or reselection. If the state of a cell is allowed, not prohibited, reserved or supported, the cell satisfies one condition as a candidate cell, and further, the cell quality is determined and it is judged whether the cell quality satisfies a predetermined condition (e.g., S criterion), etc., and only if the predetermined condition is satisfied, the cell may be selected or reselected as a candidate cell. Specifically, reference may be made to the prior art, but the description is omitted here.

[0145] The above describes examples in which cell selection or reselection information includes cell status information and / or cell restriction information and / or same frequency reselection information, but the embodiments of the present application are not limited to this, and the cell selection or reselection information may further include minimum received power, minimum quality level, off-aggregation amount, maximum transmission power (set for the terminal device and / or repeater-specific set for the repeater), etc., and for specific examples, reference may be made to the prior art, but no specific examples are provided here.

[0146] As can be seen from the above embodiments, the present application provides that, based on relevant information of cell selection or reselection, the relay determines candidate cells in the cell selection or reselection process, thereby ensuring flexible deployment of smart relays and reducing deployment costs.

[0147] Example of the second aspect In the embodiments of the present application, a method for determining a cell state is provided, which is described from the network device side, and the overlapping parts with the embodiments of the first aspect are omitted.

[0148] FIG. 5 is a schematic diagram of a method for determining a cell state according to an embodiment of the present application. As shown in FIG. 5, the method includes: 501: Transmitting cell selection or reselection related information used by a repeater to determine whether a cell can be a candidate cell in the repeater's cell selection or reselection process.

[0149] In some embodiments, the network device carries the cell selection or reselection related information by a main system information block (MIB) and / or a system information block (SIB), where the system information block includes SIB1 and other SIBs, such as SIB2 and SIB3, and the specific contents of SIB1 and other SIBs may refer to the prior art, but are not limited thereto in the present application. Furthermore, an embodiment of the cell selection or reselection related information may refer to the embodiment of the first aspect, and redundant description will be omitted.

[0150] In some embodiments, the method further comprises: 500: This may include generating information related to cell selection or reselection (optional).

[0151] In some embodiments, the cell selection or reselection related information includes cell status information, and / or cell restriction information, and / or same frequency reselection information.

[0152] In some embodiments, the cell state information comprises: Cell state information applied to a normal terminal device (user device); Cell status information applied to a degraded terminal device (RedCap UE); and at least one of cell state information applicable to IAB or IAB-MT; In some embodiments, the cell restriction information comprises: Including cell restriction information applied to the terminal device and / or the IAB-MT; The same frequency reselection information includes same frequency reselection information applied to a normal terminal device, and / or same frequency reselection information applied to a RedCap UE; Here, the cell restriction information applied to the terminal device and / or the IAB-MT includes at least one of a reserved state in which the cell is used by the operator (cellReservedForOperatorUse), a reserved state in which the cell is used for other purposes (cellReservedForOtherUse), and a reserved state in which the cell is used in the future (cellReservedForFutureUse).

[0153] In some embodiments, the cell selection or reselection related information may or may not include repeater specific cell status information and / or cell restriction information.

[0154] In some embodiments, the repeater specific cell status information and / or cell restriction information indicates whether the cell is a candidate cell in a cell selection or reselection process of the repeater; and / or Indicating whether the cell supports a repeater; and / or Indicating whether the cell is considered forbidden in the cell selection or reselection process of the relay; and / or It is used to indicate whether the cell is considered reserved or not in the repeater's cell selection or reselection process.

[0155] Here, the cell selection or reselection related information includes repeater specific same frequency reselection information.

[0156] In some embodiments, the repeater specific co-frequency reselection information is used to indicate whether a cell that is co-frequency with a forbidden cell can be a candidate cell in the repeater's cell selection or reselection process, or whether the repeater can perform cell selection or reselection in a cell that is co-frequency with a cell that is considered forbidden.

[0157] It should be noted that the above FIG. 5 merely provides a schematic description of an embodiment of the present application, and the present application is not limited thereto. For example, the execution procedure between each operation can be appropriately adjusted, and some other operations can be added or some operations can be omitted. Those skilled in the art can appropriately modify the above content without being limited to the description of FIG. 5.

[0158] As can be seen from the above embodiments, the relay can determine candidate cells in the cell selection or reselection process based on the relevant information of cell selection or reselection sent by the network device, thereby ensuring flexible deployment of smart relays and reducing deployment costs.

[0159] Example of the third aspect In the embodiment of the present application, a method for determining a cell status is provided and explained from the terminal device side.

[0160] FIG. 6 is a schematic diagram of a method for determining a cell state according to an embodiment of the present application. As shown in FIG. 6, the method includes: 601: Receiving cell selection or reselection related information; and 602: Ignoring repeater-specific cell selection or reselection related information from the cell selection or reselection related information.

[0161] Furthermore, for specific content of the information related to cell selection or reselection, please refer to the embodiments of the first aspect, and for specific process of cell selection or reselection, please refer to the embodiments of the first aspect, and duplicated explanation will be omitted.

[0162] In some embodiments, the repeater specific cell selection or reselection related information includes repeater specific cell status information, and / or repeater specific cell restriction information, and / or repeater specific same frequency reselection information.

[0163] Furthermore, for the specific contents of the repeater-specific cell status information, and / or the repeater-specific cell restriction information, and / or the repeater-specific same frequency reselection information, please refer to the embodiments of the first aspect, and duplicate explanations will be omitted.

[0164] It should be noted that the above FIG. 6 merely provides a schematic description of an embodiment of the present application, and the present application is not limited thereto. For example, the execution procedure between each operation can be appropriately adjusted, and some other operations can be added or some operations can be deleted. Those skilled in the art can appropriately modify the above content without being limited to the description of FIG. 6.

[0165] As can be seen from the above embodiments, the terminal device ignores the repeater-specific cell selection or reselection related information among the cell selection or reselection related information, and the terminal device does not mix it with the repeater-specific cell selection or reselection related information, so that the repeater can determine candidate cells in the cell selection or reselection process, thereby ensuring flexible deployment of smart repeaters and reducing deployment costs.

[0166] Example of the fourth aspect In an embodiment of the present application, a cell state determination device is provided, which may be, for example, a repeater, or may be one or a part or an assembly disposed in the repeater, and the same contents as those in the embodiment of the first aspect are omitted.

[0167] FIG. 7 is a schematic diagram of a cell state determination device of the present invention. As shown in FIG. 7, the cell state determination device 700 includes: A receiving unit 701 for receiving information related to cell selection or reselection; and a determining unit 702 for determining whether a cell can be a candidate cell in a cell selection or reselection process of the relay based on the relevant information of the cell selection or reselection.

[0168] Thereby, based on the relevant information of cell selection or reselection, the cell state determination device 700 can determine candidate cells in the cell selection or reselection process, thereby ensuring flexible deployment of smart relays and reducing deployment costs.

[0169] It should be noted that the above FIG. 7 merely provides a schematic description of an embodiment of the present application, and the present application is not limited thereto. For example, the execution procedure between each operation can be appropriately adjusted, and some other operations can be added or some operations can be omitted. Those skilled in the art can appropriately modify the above content without being limited to the description of FIG. 7.

[0170] In some embodiments, the cell selection or reselection related information may be the cell selection or reselection related information described in the first aspect embodiment, and the specific operations of 701 to 702 may refer to the first aspect embodiment, and duplicated explanations will be omitted.

[0171] In some embodiments, the determining unit 702 is The relay may further include a first determination module (not shown in FIG. 7) for ignoring relevant information for the cell selection or reselection and / or determining that the cell may be a candidate cell in the cell selection or reselection process of the repeater.

[0172] In some embodiments, the first determination module ignores the relevant information for the cell selection or reselection and / or determines that the cell can be a candidate cell in the cell selection or reselection process of the repeater, the specific operations of which may refer to the embodiments of the first aspect, and redundant descriptions will be omitted.

[0173] In some embodiments, the determination unit 702 may include a second determination module (not shown in FIG. 7) that uses the relevant information for the cell selection or reselection to determine whether the cell can be a candidate cell in the cell selection or reselection process of the repeater.

[0174] In some embodiments, the second determination module uses relevant information of the cell selection or reselection to determine whether the cell can be a candidate cell in the cell selection or reselection process of the repeater, and the specific operation may refer to the embodiments of the first aspect, and redundant description will be omitted.

[0175] In some embodiments, the determining unit 702 is If the cell selection or reselection related information does not include the relay specific cell status information and / or cell restriction information, determining that the cell is not a candidate cell in the cell selection or reselection process of the relay; a third determination module, which is used for determining that the cell may be a candidate cell in a cell selection or reselection process of the relay when the cell selection or reselection related information includes relay specific cell status information and / or cell restriction information; Or, If the cell selection or reselection related information includes repeater specific cell status information and / or cell restriction information, determining that the cell is not a candidate in the repeater's cell selection or reselection process; If the cell selection or reselection related information does not include repeater specific cell status information and / or cell restriction information, it may include a fourth decision module (not shown in FIG. 7) that is used to determine that the cell may be a candidate cell in the repeater's cell selection or reselection process.

[0176] In some embodiments, the third decision module or the fourth decision module determines whether the cell can be a candidate cell in the cell selection or reselection process of the repeater, and the specific operation may refer to the embodiments of the first aspect, and duplicated explanations will be omitted.

[0177] In some embodiments, the determination unit 702 may include a fifth determination module (not shown in FIG. 7) that is used to determine that a cell that is co-frequency with a prohibited cell may be a candidate cell in the cell selection or reselection process of the repeater if the repeater-specific co-frequency reselection information is allowed.

[0178] In some embodiments, the fifth decision module determines whether the cell can be a candidate cell in the cell selection or reselection process of the repeater, and the specific operation may refer to the embodiments of the first aspect, and redundant explanations will be omitted.

[0179] The above various embodiments are merely illustrative of the embodiments of the present application, and the present application is not limited thereto, and appropriate modifications may be made based on the above various embodiments. For example, the above various embodiments may be used individually, or one or more of the above various embodiments may be combined.

[0180] In addition, although only various components or modules related to the present application are described above, the present application is not limited thereto. The cell state determination device 700 may further include other components or modules, and the specific contents of these components or modules may refer to the related art.

[0181] Furthermore, for the sake of simplicity, Fig. 7 only exemplarily illustrates the connection relationships or signal directions between various components or modules, but it will be apparent to those skilled in the art that various related technologies such as bus connections can be applied. The above-mentioned various components or modules can be realized by hardware equipment such as a processor, a memory, a transmitter, a receiver, etc. The implementation of the present application is not limited thereto.

[0182] As can be seen from the above embodiments, the relay can determine candidate cells in the cell selection or reselection process based on the relevant information of cell selection or reselection sent by the network device, thereby ensuring flexible deployment of smart relays and reducing deployment costs.

[0183] Example of the fifth aspect In an embodiment of the present application, a cell state determining device is provided, which may be, for example, a network device, or may be one or a part of a component or assembly disposed in the network device, and the same content as in the embodiment of the second aspect is omitted.

[0184] FIG. 8 is a schematic diagram of a cell state determination device of the present invention. As shown in FIG. 8, the cell state determination device 800 includes: It includes a transmitting unit 801 for transmitting cell selection or reselection related information used by a repeater to determine whether a cell can be a candidate cell in the repeater's cell selection or reselection process.

[0185] Thereby, the repeater can determine a candidate cell in the cell selection or reselection process based on the relevant information of cell selection or reselection transmitted by the cell state determination device 800, thereby ensuring flexible deployment of smart repeaters and reducing deployment costs.

[0186] In some embodiments, the transmitting unit 801 conveys information related to the cell selection or reselection through system information, and the embodiment of the information related to the cell selection or reselection may refer to the embodiment of the first aspect, and duplicated description will be omitted.

[0187] In some embodiments, the apparatus may include a generating unit 802 for generating information relevant to the cell selection or reselection (optional).

[0188] In some embodiments, the transmitting unit 801 and the generating unit 802 may refer to 500 to 501 in the embodiments of the second aspect, and the related information for the cell selection or reselection may refer to the embodiments of the first aspect, but the description is omitted here.

[0189] The above various embodiments are merely illustrative of the embodiments of the present application, and the present application is not limited thereto, and appropriate modifications may be made based on the above various embodiments. For example, the above various embodiments may be used individually, or one or more of the above various embodiments may be combined.

[0190] In addition, although only various components or modules related to the present application are described above, the present application is not limited thereto. The cell state determination device 800 may further include other components or modules, and the specific contents of these components or modules may refer to the related art.

[0191] Furthermore, for the sake of simplicity, Fig. 8 only exemplarily illustrates the connection relationships or signal directions between various components or modules, but those skilled in the art will appreciate that various related technologies, such as bus connections, may be applied. The above-mentioned components or modules may be realized by hardware equipment, such as a processor, a memory, a transmitter, a receiver, etc. The implementation of the present application is not limited thereto.

[0192] As can be seen from the above embodiments, the relay can determine candidate cells in the cell selection or reselection process based on the relevant information of cell selection or reselection sent by the network device, thereby ensuring flexible deployment of smart relays and reducing deployment costs.

[0193] Example of the sixth aspect In an embodiment of the present application, a cell state determination device is provided, which may be, for example, a terminal device, or may be one or a part of a component or assembly disposed in the terminal device, and the same content as in the embodiment of the third aspect is omitted.

[0194] FIG. 9 is a schematic diagram of a cell state determination device of the present invention. As shown in FIG. 9, the cell state determination device 900 includes: A receiving unit 901 for receiving information related to cell selection or reselection; and a determining unit 902 for ignoring repeater-specific cell selection or reselection related information among the cell selection or reselection related information.

[0195] In some embodiments, the receiving unit 901 and the determining unit 902 may refer to 601-602 in the embodiments of the third aspect, and the relevant information for the cell selection or reselection may refer to the embodiments of the first aspect, but the description is omitted here.

[0196] The above various embodiments are merely illustrative of the embodiments of the present application, and the present application is not limited thereto, and appropriate modifications may be made based on the above various embodiments. For example, the above various embodiments may be used individually, or one or more of the above various embodiments may be combined.

[0197] In addition, although only various components or modules related to the present application are described above, the present application is not limited thereto. The cell state determination device 900 may further include other components or modules, and the specific contents of these components or modules may refer to the related art.

[0198] Furthermore, for the sake of simplicity, Fig. 9 only exemplarily illustrates the connection relationships or signal directions between various components or modules, but it will be apparent to those skilled in the art that various related technologies such as bus connections can be applied. The above-mentioned various components or modules can be realized by hardware equipment such as a processor, a memory, a transmitter, a receiver, etc. The implementation of the present application is not limited thereto.

[0199] As can be seen from the above embodiments, the terminal device ignores the repeater-specific cell selection or reselection related information among the cell selection or reselection related information, and the terminal device does not mix it with the repeater-specific cell selection or reselection related information, so that the repeater can determine candidate cells in the cell selection or reselection process, thereby ensuring flexible deployment of smart repeaters and reducing deployment costs.

[0200] Example of the seventh aspect In the embodiments of the present application, a communication system is further provided, which may refer to FIG. 1, and the same contents as those in the embodiments of the first to sixth aspects are omitted.

[0201] In some embodiments, the communication system 100 may include at least a network device 1000 , a repeater 1100 and a terminal device 1200 .

[0202] In some embodiments, the network device 1000 transmits cell selection or reselection related information, and the repeater 1100 receives the cell selection or reselection related information and determines whether a cell can be a candidate cell in the cell selection or reselection process of the repeater, where the cell selection or reselection related information includes cell status information, cell restriction information, and / or same frequency reselection information.

[0203] In some embodiments, the network device 1000 transmits cell selection or reselection related information, the terminal device 1200 receives the cell selection or reselection related information, and the terminal device 1200 ignores repeater-specific cell selection or reselection related information among the cell selection or reselection related information.

[0204] In the embodiment of the present application, a network device is further provided, which may be, for example, a base station, but the present application is not limited thereto and may be other network devices.

[0205] Fig. 10 is a schematic diagram of a network device 1000 according to an embodiment of the present application. As shown in Fig. 10, the network device 1000 may include a processor 1010 (e.g., a central processor CPU) and a memory 1020, and the memory 1020 is coupled to the processor 1010. Here, the memory 1020 can store various data, and further stores a program 1030 for information processing, and executes the program 1030 under the control of the processor 1010.

[0206] For example, the processor 1010 may be configured to execute a program to implement the cell state determination method described in the embodiment of the second aspect.

[0207] Furthermore, as shown in Fig. 10, the network device 1000 may further include a transceiver 1040 and an antenna 1050, etc. Here, the functions of the above components are similar to those of the prior art, and the description is omitted here. It is not necessary for the network device 1000 to include all the components shown in Fig. 10. Furthermore, the network device 1000 may further include components not shown in Fig. 10, and may refer to the prior art.

[0208] In the embodiment of the present application, a repeater is further provided, but the present application is not limited thereto, and may be other devices, for example, a terminal device with a repeater function.

[0209] 11 is a schematic diagram of a repeater 1100 according to an embodiment of the present application. As shown in FIG. 11, the repeater 1100 may include a processor 1110 and a memory 1120, where the memory 1120 stores data and programs and is coupled to the processor 1110. It should be noted that the diagram is exemplary and other types of structures may be used to supplement or replace the structures so as to realize electrical communication functions or other functions.

[0210] For example, the processor 1110 may be configured to execute a program to implement the cell state determination method described in the embodiment of the first aspect.

[0211] As shown in Fig. 11, the repeater 1100 may further include a communication module 1130, an input unit 1140, a display 1150, and a power supply 1160. Here, the functions of the above components are similar to those of the prior art, and the description is omitted here. It is noted that the repeater 1100 does not need to include all the components shown in Fig. 11, and the components are not essential. Furthermore, the repeater 1100 may further include components not shown in Fig. 11, and may refer to the prior art.

[0212] In the embodiment of the present application, a terminal device is further provided, but the present application is not limited thereto and may be other devices.

[0213] Fig. 12 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in Fig. 12, the terminal device 1200 may include a processor 1210 and a memory 1220, where the memory 1220 stores data and programs and is coupled to the processor 1210. It should be noted that the diagram is exemplary, and other types of structures may be used to supplement or replace the structures so as to realize telecommunication functions or other functions.

[0214] For example, the program 1210 may be arranged to be executed to realize the method for determining a cell state described in the embodiment of the third aspect.

[0215] As shown in Fig. 12, the terminal device 1200 may further include a communication module 1230, an input unit 1240, a display 1250, and a power source 1260. Here, the functions of the above components are similar to those of the prior art, and the description is omitted here. Note that the terminal device 1200 does not need to include all the components shown in Fig. 12, and does not need to include those components. Furthermore, the terminal device 1200 may further include components not shown in Fig. 12, and may refer to the prior art.

[0216] In an embodiment of the present application, a computer program is further provided, where, when the program is executed in a repeater, the program causes the repeater to perform the method for determining a cell state according to the embodiment of the first aspect.

[0217] In an embodiment of the present application, a storage medium is provided having a computer program stored thereon, wherein the computer program causes a repeater to perform a method for determining a cell state according to the embodiment of the first aspect.

[0218] In an embodiment of the present application, there is further provided a computer program, wherein, when the program is executed in a network device, the program causes the network device to perform the method for determining a cell state according to the embodiment of the second aspect.

[0219] In an embodiment of the present application, there is further provided a storage medium storing a computer program, wherein the computer program causes a network device to perform the method for determining a cell status according to the embodiment of the second aspect.

[0220] In an embodiment of the present application, a computer program is further provided, wherein, when the program is executed in a terminal device, the program causes the terminal device to perform a method for determining a cell state according to an embodiment of the third aspect.

[0221] In an embodiment of the present application, a storage medium storing a computer program is further provided, wherein the computer program causes a terminal device to perform the method for determining a cell status according to the embodiment of the third aspect.

[0222] The above-mentioned apparatus and method of the present application may be realized by hardware or a combination of hardware and software. The present application relates to a computer readable program which, when executed by a logic element, causes the logic element to realize the above-mentioned apparatus or components or to realize the various methods or steps described above. The present application further relates to a storage medium, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc., on which the above-mentioned program is stored.

[0223] The methods / apparatuses described with reference to the embodiments of the present application may be embodied directly as hardware, software modules executed by a processor, or a combination of both. For example, one or more functional blocks and / or one or more combinations of functional blocks in the functional block diagrams shown in the figures may correspond to each software module in a computer program flow or each hardware module. These software modules may correspond to each step shown in the figures. These hardware modules may be realized by implementing these software modules in hardware using, for example, a field programmable gate array (FPGA).

[0224] The software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. The storage medium may be coupled to the processor such that the processor can read information from and write information to the storage medium, or the storage medium may be a component of the processor. The processor and the storage medium may reside in an ASIC. The software module may be stored in a memory of the mobile terminal, or in a memory card that can be inserted into the mobile terminal. For example, if a device (e.g., a mobile terminal) uses a relatively large capacity MEGA-SIM card or a large capacity flash memory device, the software module may be stored in the MEGA-SIM card or the large capacity flash memory device.

[0225] One or more of the functional blocks and / or one or more combinations of functional blocks in the functional block diagrams illustrated in the figures may be implemented with a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any suitable combination thereof to perform the functions described herein. One or more of the functional blocks and / or one or more combinations of functional blocks in the functional block diagrams illustrated in the figures may be implemented with a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in combination with a DSP communication, or any other configuration.

[0226] Although the present invention has been described above with reference to specific embodiments, it is obvious to those skilled in the art that the above description is merely illustrative and does not limit the scope of protection of the present invention. Those skilled in the art may make various modifications and amendments to the present invention based on the spirit and principles of this application, and these modifications and amendments are also within the scope of the present invention.

[0227] The following supplementary notes are further disclosed regarding the embodiments including the above examples.

[0228] (Appendix 1) A method for determining a cell state, applied to a repeater, comprising the steps of: receiving cell selection or reselection related information; and A method for determining a cell status, comprising: determining whether a cell can be a candidate cell in a cell selection or reselection process of the repeater based on relevant information of the cell selection or reselection.

[0229] (Appendix 2) The cell selection or reselection related information includes cell status information, and / or cell restriction information, and / or same frequency reselection information; The method described in Appendix 1.

[0230] (Appendix 3) The cell state information is Cell state information applied to a normal terminal device (user device); Cell status information applied to a degraded terminal device (RedCap UE); and at least one of cell state information applicable to IAB or IAB-MT; The cell restriction information is Including cell restriction information applied to the terminal device and / or the IAB-MT; The method according to claim 2, wherein the same frequency reselection information includes same frequency reselection information applied to a normal terminal device and / or same frequency reselection information applied to a RedCap UE.

[0231] (Appendix 4) The method described in Supplementary Note 3, wherein the cell restriction information applied to the terminal device and / or IAB-MT includes at least one of a reserved state in which the cell is used by the operator (cellReservedForOperatorUse), a reserved state in which the cell is used for other purposes (cellReservedForOtherUse), and a reserved state in which the cell is used in the future (cellReservedForFutureUse).

[0232] (Appendix 5) The step of determining whether a cell can be a candidate cell in a cell selection or reselection process of the relay based on the cell selection or reselection related information, 5. The method of claim 1, further comprising ignoring information related to the cell selection or reselection and / or determining that the cell may be a candidate cell in a cell selection or reselection process of the repeater.

[0233] (Appendix 6) The step of determining whether a cell can be a candidate cell in a cell selection or reselection process of the relay based on the cell selection or reselection related information, 5. The method of claim 1, further comprising: using the cell selection or reselection related information to determine whether the cell can be a candidate cell in a cell selection or reselection process of the repeater.

[0234] (Appendix 7) The step of using the cell selection or reselection related information to determine whether the cell can be a candidate cell in the cell selection or reselection process of the repeater includes a step of using cell restriction information applied to a terminal device and / or an IAB-MT to determine whether the cell can be a candidate cell in the cell selection or reselection process of the repeater, the step comprising: determining that the cell may be a candidate cell in a cell selection or reselection process of the relay if the cellReservedForOperatorUse state is "reserved"; if the state of cellReservedForOtherUse is "true", determining that the cell may be a candidate cell in a cell selection or reselection process of the relay; and 7. The method of claim 6, further comprising at least one of: determining that the cell may be a candidate cell in a cell selection or reselection process of the relay if a state of cellReservedForFutureUse is "true".

[0235] (Appendix 8) The step of using the cell selection or reselection related information to determine whether the cell can be a candidate cell in the cell selection or reselection process of the repeater includes the step of using cell status information applied to IAB or IAB-MT to determine whether the cell can be a candidate cell in the cell selection or reselection process of the repeater, the step comprising: 7. The method of claim 6, comprising determining that the cell may be a candidate cell in a cell selection or reselection process of the relay if a field representing cell status information that applies to IAB or IAB-MT is present.

[0236] (Appendix 9) 5. The method of claim 1, wherein the cell selection or reselection related information includes or does not include repeater specific cell status information and / or cell restriction information.

[0237] (Appendix 10) the repeater specific cell status information and / or cell restriction information indicating whether the cell is a candidate cell in a cell selection or reselection process of the repeater; and / or Indicating whether the cell supports a repeater; and / or Indicating whether the cell is considered forbidden in a cell selection or reselection process of the relay; and / or 10. The method of claim 9, used to indicate whether the cell is considered reserved or not in a cell selection or reselection process of the repeater.

[0238] (Appendix 11) If the cell selection or reselection related information does not include the repeater specific cell status information and / or cell restriction information, determining that the cell is not a candidate cell in the repeater's cell selection or reselection process; If the cell selection or reselection related information includes the repeater specific cell status information and / or cell restriction information, determine that the cell may be a candidate cell in the cell selection or reselection process of the repeater; Or, If the cell selection or reselection related information includes the repeater specific cell status information and / or cell restriction information, determining that the cell is not a candidate cell in the repeater's cell selection or reselection process; 10. The method of claim 9, further comprising determining that the cell may be a candidate cell in a cell selection or reselection process of the repeater if the cell selection or reselection related information does not include repeater specific cell status information and / or cell restriction information.

[0239] (Appendix 12) If all relevant information matching the first PLMN and / or the first NPN does not include the repeater specific cell status information and / or cell restriction information, determining that the cell is not a candidate cell in the repeater's cell selection or reselection process; If at least one of the associated information matching the first PLMN and / or the first NPN includes the repeater specific cell status information and / or cell restriction information, determining that the cell may be a candidate cell in a cell selection or reselection process of the repeater; Or, determining that the cell may be a candidate cell in a cell selection or reselection process of the relay if all relevant information matching the first PLMN and / or the first NPN does not include the relay specific cell status information and / or cell restriction information; 12. The method of claim 11, further comprising determining that the cell is not a candidate cell in a cell selection or reselection process of the relay if at least one of the associated information matching the first PLMN and / or the first NPN includes repeater specific cell status information and / or cell restriction information.

[0240] (Appendix 13) The first PLMN comprises: A selected PLMN, Registered PLMN, Contains the PLMNs of the Equivalent PLMN List, The first NPN is The selected SNPN, Registered SNPN, 13. The method of claim 12, including an SNPN from an equivalent SNPN list.

[0241] (Appendix 14) If the system information block indicates multiple PLMNs or SNPNs: The repeater specific cell status information and / or cell restriction information is specific per PLMN or per NPN, or 10. The method of claim 9, wherein the repeater-specific cell status information and / or cell restriction information is common to the multiple PLMNs or SNPNs.

[0242] (Appendix 15) 5. The method of claim 1, wherein the cell selection or reselection related information includes repeater specific same frequency reselection information.

[0243] (Appendix 16) 16. The method of claim 15, wherein the repeater specific same-frequency reselection information is used to indicate whether a cell that is same-frequency as a forbidden cell can be a candidate cell in the repeater's cell selection or reselection process or whether the repeater can perform cell selection or reselection in a cell that is same-frequency as a cell that is considered to be forbidden.

[0244] (Appendix 17) 16. The method of claim 15, wherein the step of determining whether a cell can be a candidate cell in the cell selection or reselection process of the repeater based on the cell selection or reselection related information includes determining that a cell that is co-frequency with a prohibited cell can be a candidate cell in the cell selection or reselection process of the repeater if the repeater specific co-frequency reselection information is allowed.

[0245] (Appendix 18) The cell selection or reselection related information is carried via a main system information block (MIB) and / or a system information block (SIB); 18. An apparatus according to any one of claims 1 to 17.

[0246] (Appendix 19) A method for determining a cell state, applied to a network device, comprising: generating cell selection or reselection related information used by a repeater to determine whether a cell can be a candidate cell in a cell selection or reselection process of the repeater; and A method for determining a cell status, comprising transmitting information related to the cell selection or reselection.

[0247] (Appendix 20) The cell selection or reselection related information includes cell status information, and / or cell restriction information, and / or same frequency reselection information; 19. The method according to claim 19.

[0248] (Appendix 21) The cell state information is Cell state information applied to a normal terminal device (user device); Cell status information applied to a degraded terminal device (RedCap UE); and at least one of cell state information applicable to IAB or IAB-MT; The cell restriction information is Including cell restriction information applied to the terminal device and / or the IAB-MT; The method according to claim 20, wherein the same frequency reselection information includes same frequency reselection information applied to a normal terminal device and / or same frequency reselection information applied to a RedCap UE.

[0249] (Appendix 22) The method described in Supplementary Note 21, wherein the cell restriction information applied to the terminal device and / or the IAB-MT includes at least one of a reserved state in which the cell is used by the operator (cellReservedForOperatorUse), a reserved state in which the cell is used for other purposes (cellReservedForOtherUse), and a reserved state in which the cell is used in the future (cellReservedForFutureUse).

[0250] (Appendix 23) 23. The method of claim 19, wherein the cell selection or reselection related information includes or does not include repeater specific cell status information and / or cell restriction information.

[0251] (Appendix 24) the repeater specific cell status information and / or cell restriction information indicating whether the cell is a candidate cell in a cell selection or reselection process of the repeater; and / or Indicating whether the cell supports a repeater; and / or Indicating whether the cell is considered forbidden in a cell selection or reselection process of the relay; and / or 24. The method of claim 23, used to indicate whether the cell is considered reserved in a cell selection or reselection process of the repeater.

[0252] (Appendix 25) 23. The method of any one of claims 19 to 22, wherein the cell selection or reselection related information includes repeater specific same frequency reselection information.

[0253] (Appendix 26) 26. The method of claim 25, wherein the repeater specific same frequency reselection information is used to indicate whether a cell which is on the same frequency as a forbidden cell can be a candidate cell in the repeater's cell selection or reselection process or whether the repeater can perform cell selection or reselection in a cell which is on the same frequency as a cell which is considered to be forbidden.

[0254] (Appendix 27) The cell selection or reselection related information is carried by a main system information block (MIB) and / or a system information block (SIB); 27. The apparatus of any one of claims 19 to 26.

[0255] (Appendix 28) A method for determining a cell state, which is applied to a terminal device, comprising: receiving cell selection or reselection related information; and A method for determining a cell state, comprising ignoring repeater-specific cell selection or reselection related information from the cell selection or reselection related information.

[0256] (Appendix 29) The repeater specific cell selection or reselection related information includes repeater specific cell status information, and / or repeater specific cell restriction information, and / or repeater specific same frequency reselection information; 29. The method according to claim 28.

[0257] (Appendix 30) A repeater comprising: a memory having a computer program stored therein; and a processor configured to execute the computer program and to implement a method for determining a cell state as set forth in any one of appendices 1-18.

[0258] (Appendix 31) A network device comprising: a memory in which a computer program is stored; and a processor configured to execute the computer program and to perform a cell state determination method according to any one of appendices 19 to 27.

[0259] (Appendix 32) A terminal device comprising: a memory in which a computer program is stored; and a processor configured to execute the computer program and to perform a cell state determination method according to any one of appendices 28 to 29.

[0260] (Appendix 37) A cell state determination device, applied to a repeater, comprising: A receiving unit for receiving information related to cell selection or reselection; and a determining unit for determining whether a cell can be a candidate cell in a cell selection or reselection process of the repeater based on the cell selection or reselection related information.

[0261] (Appendix 38) The cell selection or reselection related information includes cell status information, and / or cell restriction information, and / or same frequency reselection information; 38. The apparatus of claim 37.

[0262] (Appendix 39) The cell state information is Cell state information applied to a normal terminal device (user device); Cell status information applied to a degraded terminal device (RedCap UE); and at least one of cell state information applicable to IAB or IAB-MT; The cell restriction information is Including cell restriction information applied to the terminal device and / or the IAB-MT; The apparatus of claim 38, wherein the same frequency reselection information includes same frequency reselection information applied to a normal terminal device and / or same frequency reselection information applied to a RedCap UE.

[0263] (Appendix 40) The device described in Supplementary Note 39, wherein the cell restriction information applied to the terminal device and / or the IAB-MT includes at least one of a reserved state in which the cell is used by the operator (cellReservedForOperatorUse), a reserved state in which the cell is used for other purposes (cellReservedForOtherUse), and a reserved state in which the cell is used in the future (cellReservedForFutureUse).

[0264] (Appendix 41) The decision unit is 41. The apparatus according to any one of claims 37 to 40, comprising a first decision module for ignoring cell selection or reselection related information and / or for determining that the cell is a possible candidate cell in a cell selection or reselection process of the repeater.

[0265] (Appendix 42) The decision unit is 41. The apparatus of any one of claims 37 to 40, further comprising a second decision module for using the cell selection or reselection related information to determine whether the cell can be a candidate cell in a cell selection or reselection process of the repeater.

[0266] (Appendix 43) The step of the second determination module using cell restriction information applied to the terminal device and / or IAB-MT to determine whether the cell can be a candidate cell in a cell selection or reselection process of the relay, if the cellReservedForOperatorUse state is "reserved", the second determination module determines that the cell may be a candidate cell in a cell selection or reselection process of the relay; if the state of cellReservedForOtherUse is "true", the second determination module determines that the cell may be a candidate cell in a cell selection or reselection process of the relay; and 43. The apparatus of claim 42, wherein if a state of cellReservedForFutureUse is “true”, the second decision module includes at least one of determining that the cell may be a candidate cell in a cell selection or reselection process of the repeater.

[0267] (Appendix 44) 43. The apparatus of claim 42, wherein the second decision module determines that the cell may be a candidate cell in a cell selection or reselection process of the repeater if a field representing cell status information that applies to IAB or IAB-MT is present.

[0268] (Appendix 45) 41. An apparatus according to any one of claims 37 to 40, wherein the cell selection or reselection related information includes or does not include repeater specific cell status information and / or cell restriction information.

[0269] (Appendix 46) the repeater specific cell status information and / or cell restriction information indicating whether the cell is a candidate cell in a cell selection or reselection process of the repeater; and / or Indicating whether the cell supports a repeater; and / or Indicating whether the cell is considered forbidden in a cell selection or reselection process of the relay; and / or 46. ​​The apparatus of claim 45, used to indicate whether the cell is considered reserved in a cell selection or reselection process of the repeater.

[0270] (Appendix 47) The decision unit is If the cell selection or reselection related information does not include the repeater specific cell status information and / or cell restriction information, determining that the cell is not a candidate cell in the repeater's cell selection or reselection process; a third determination module, which is used for determining that the cell may be a candidate cell in a cell selection or reselection process of the relay when the cell selection or reselection related information includes the relay specific cell status information and / or cell restriction information; Or, determining that the cell is not a candidate in a cell selection or reselection process of the relay if the cell selection or reselection related information includes the relay specific cell status information and / or cell restriction information; 47. The apparatus of claim 46, further comprising a fourth determination module adapted to determine that the cell may be a candidate cell in a cell selection or reselection process of the repeater if the cell selection or reselection related information does not include repeater specific cell status information and / or cell restriction information.

[0271] (Appendix 48) The third determination module determines that the cell is not a candidate cell in the cell selection or reselection process of the relay if all related information matching the first PLMN and / or the first NPN does not include the relay specific cell status information and / or cell restriction information; If at least one of the related information matching the first PLMN and / or the first NPN includes the repeater specific cell status information and / or cell restriction information, determine that the cell may be a candidate cell in the repeater's cell selection or reselection process; Or, A fourth determination module determines that the cell may be a candidate cell in a cell selection or reselection process of the relay if all related information matching the first PLMN and / or the first NPN does not include the relay-specific cell status information and / or cell restriction information; 48. The apparatus of claim 47, further comprising: determining that the cell is not a candidate cell in a cell selection or reselection process of the repeater if at least one of the associated information matching the first PLMN and / or the first NPN includes cell status information and / or cell restriction information specific to the repeater.

[0272] (Appendix 49) The first PLMN comprises: A selected PLMN, Registered PLMN, Contains the PLMNs of the Equivalent PLMN List, The first NPN is The selected SNPN, Registered SNPN, 49. The apparatus of claim 48, comprising an SNPN from an equivalent SNPN list.

[0273] (Appendix 50) If the system information block indicates multiple PLMNs or SNPNs: The repeater specific cell status information and / or cell restriction information is specific per PLMN or per NPN, or 46. ​​The apparatus of claim 45, wherein the repeater-specific cell status information and / or cell restriction information is common to the plurality of PLMNs or SNPNs.

[0274] (Appendix 51) 41. The apparatus of any one of claims 37 to 40, wherein the cell selection or reselection related information comprises repeater specific same frequency reselection information.

[0275] (Appendix 52) 52. The apparatus of claim 51, wherein the repeater specific same frequency reselection information is used to indicate whether a cell that is on the same frequency as a forbidden cell can be a candidate cell in the repeater's cell selection or reselection process or whether the repeater can perform cell selection or reselection in a cell that is on the same frequency as a cell that is considered forbidden.

[0276] (Appendix 53) The decision unit is 52. The apparatus of claim 51, further comprising a fifth decision module adapted to determine that a cell that is co-frequency with a prohibited cell may be a candidate cell in a cell selection or reselection process of the repeater if the repeater-specific co-frequency reselection information is allowed.

[0277] (Appendix 54) The cell selection or reselection related information is carried via a main system information block (MIB) and / or a system information block (SIB); 54. The apparatus of any one of claims 37 to 53.

[0278] (Appendix 55) A cell state determination device applied to a network device, comprising: a generating unit for generating cell selection or reselection related information, which is used by a relay to determine whether a cell can be a candidate cell in a cell selection or reselection process of the relay; and a transmitting unit for transmitting information related to the cell selection or reselection.

[0279] (Appendix 56) A cell state determination device applied to a terminal device, comprising: A receiving unit for receiving information related to cell selection or reselection; a determining unit for ignoring repeater-specific cell selection or reselection related information among the cell selection or reselection related information.

[0280] (Appendix 57) A repeater as defined in claim 30, and / or A network device as set forth in Supplementary Note 31, and / or 33. A communication system comprising the terminal device of claim 32.

Claims

1. A cell state determination device, applied to a repeater, comprising: A receiving unit for receiving information related to cell selection or reselection; and a determination unit for determining whether the cell can be a candidate cell in a cell selection or reselection process of the repeater based on the relevant information of the cell selection or reselection.

2. The cell selection or reselection related information includes cell status information, and / or cell restriction information, and / or same frequency reselection information; 2. The apparatus of claim 1.

3. The cell state information is Cell state information applied to a normal terminal device (user equipment); Cell status information applied to a degraded terminal device (RedCap UE); and at least one of cell state information applicable to IAB or IAB-MT; The cell restriction information is Including cell restriction information applied to the terminal device and / or the IAB-MT; The apparatus of claim 2 , wherein the same frequency reselection information includes same frequency reselection information applied to a normal terminal device and / or same frequency reselection information applied to a RedCap UE.

4. The device of claim 3, wherein the cell restriction information applied to the terminal device and / or the IAB-MT includes at least one of a reserved state in which the cell is used by the operator (cellReservedForOperatorUse), a reserved state in which the cell is used for other purposes (cellReservedForOtherUse), and a reserved state in which the cell is used in the future (cellReservedForFutureUse).

5. The decision unit is The apparatus of claim 1 , comprising: a first determining module for ignoring relevant information for the cell selection or reselection and / or determining that the cell is a possible candidate cell in the cell selection or reselection process of the repeater.

6. The decision unit is The apparatus of claim 1 , further comprising: a second determination module for determining whether the cell can be a candidate cell in a cell selection or reselection process of the repeater using the cell selection or reselection related information.

7. The step of the second determination module using cell restriction information applied to the terminal device and / or IAB-MT to determine whether the cell can be a candidate cell in a cell selection or reselection process of the relay, if the cellReservedForOperatorUse state is “reserved”, the second determination module determines that the cell may be a candidate cell in a cell selection or reselection process of the relay; If the state of cellReservedForOtherUse is "true", the second decision module determines that the cell may be a candidate cell in a cell selection or reselection process of the relay; and The apparatus of claim 6 , wherein if a state of cellReservedForFutureUse is “true”, the second decision module includes at least one of determining that the cell is a possible candidate cell in a cell selection or reselection process of the relay.

8. 7. The apparatus of claim 6, wherein the second determination module determines that the cell may be a candidate cell in a cell selection or reselection process of the repeater if a field representing cell status information that applies to IAB or IAB-MT is present.

9. The apparatus of claim 1 , wherein the cell selection or reselection related information includes or does not include repeater specific cell status information and / or cell restriction information.

10. the repeater specific cell status information and / or cell restriction information indicating whether the cell is a candidate cell in a cell selection or reselection process of the repeater; and / or Indicating whether the cell supports a repeater; and / or Indicating whether the cell is considered forbidden in a cell selection or reselection process of the relay; and / or 10. The apparatus of claim 9, used to indicate whether the cell is considered reserved or not in a cell selection or reselection process of the repeater.

11. The determination unit is If the cell selection or reselection related information does not include the repeater specific cell status information and / or cell restriction information, determining that the cell is not a candidate cell in the repeater's cell selection or reselection process; a third determination module, which is used for determining that the cell may be a candidate cell in a cell selection or reselection process of the relay when the cell selection or reselection related information includes the relay specific cell status information and / or cell restriction information; Or, determining that the cell is not a candidate in the cell selection or reselection process of the relay if the cell selection or reselection related information includes the relay specific cell status information and / or cell restriction information; The apparatus of claim 10, further comprising: a fourth determination module that is used to determine that the cell may be a candidate cell in a cell selection or reselection process of the repeater if the cell selection or reselection related information does not include repeater specific cell status information and / or cell restriction information.

12. The third determination module determines that the cell is not a candidate cell in a cell selection or reselection process of the relay if all related information matching the first PLMN and / or the first NPN does not include the relay-specific cell status information and / or cell restriction information; If at least one of the associated information matching the first PLMN and / or the first NPN includes the repeater-specific cell status information and / or cell restriction information, determine that the cell may be a candidate cell in a cell selection or reselection process of the repeater; Or, A fourth determination module determines that the cell may be a candidate cell in a cell selection or reselection process of the relay if all related information matching the first PLMN and / or the first NPN does not include the relay-specific cell status information and / or cell restriction information; 12. The apparatus of claim 11, further comprising: determining that the cell is not a candidate cell in a cell selection or reselection process of the repeater if at least one of the associated information matching the first PLMN and / or the first NPN includes the repeater specific cell status information and / or cell restriction information.

13. The first PLMN is A selected PLMN, A registered PLMN, Contains the PLMNs in the equivalent PLMN list, The first NPN is The selected SNPN, Registered SNPN, The apparatus of claim 12 , further comprising a SNPN from a list of equivalent SNPNs.

14. If the system information block indicates multiple PLMNs or SNPNs: The repeater specific cell status information and / or cell restriction information is specific per PLMN or per NPN, or The apparatus of claim 9 , wherein the repeater specific cell status information and / or cell restriction information is common to the multiple PLMNs or SNPNs.

15. The apparatus of claim 1 , wherein the cell selection or reselection related information includes repeater specific same-frequency reselection information.

16. 16. The apparatus of claim 15, wherein the repeater specific co-frequency reselection information is used to indicate whether a cell that is co-frequency with a forbidden cell can be a candidate cell in the repeater's cell selection or reselection process or whether the repeater can perform cell selection or reselection in a cell that is co-frequency with a cell that is considered forbidden.

17. The determination unit is 16. The apparatus of claim 15, further comprising a fifth decision module adapted to determine that a cell that is co-frequency with a prohibited cell may be a candidate cell in a cell selection or reselection process of the repeater if the repeater specific co-frequency reselection information is allowed.

18. The cell selection or reselection related information is carried by a Main System Information Block (MIB) and / or a System Information Block (SIB); 2. The apparatus of claim 1.

19. A cell state determination device applied to a network device, comprising: a generating unit for generating cell selection or reselection related information for use by a relay to determine whether a cell can be a candidate cell in a cell selection or reselection process of the relay; a transmitting unit for transmitting information related to the cell selection or reselection.

20. A cell state determination device applied to a terminal device, comprising: A receiving unit for receiving information related to cell selection or reselection; a determining unit for ignoring repeater-specific cell selection or reselection related information among the cell selection or reselection related information.

Images