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 provide wider bandwidth and higher data rates, and can support more types of terminals and vertical services than conventional 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 severe the fading the signal experiences 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 issue 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, and it cannot be assumed that the technical aspects are known to those skilled in the art just because they are described in the background section of this application. Summary of the Invention [Problem to be solved by the invention]

[0005] In order to better solve the coverage problem of cellular mobile communication systems in actual deployment, using a radio frequency repeater (RF relay / repeater) to amplify and relay communication signals between terminal devices and network devices is a relatively common deployment form. Radio frequency repeaters are relatively widely applied in the actual deployment of 3G systems and 4G systems. Generally, a radio frequency repeater is a device that amplifies and relays signals transmitted and received between a network device and a 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, conventional repeaters lack the ability to communicate with network devices and cannot directly obtain information about uplink / downlink settings from network devices. Therefore, although installing such repeaters in 5G systems can improve signal strength, they lack the flexibility to adapt to complex situational changes and cannot achieve the same effect as deploying the same radio frequency repeaters in both 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 and simplifying transmission and reception with better spatial directionality and 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 cell status when the smart relay performs cell selection and / or reselection.

[0009] To address 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, the method comprising: receiving cell selection or reselection related information; and A method for determining a cell status is provided, which includes 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.

[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 relay to determine whether a cell can be a candidate cell in a cell selection or reselection process of said relay; and A method for determining a cell status is provided, which includes 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 A 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; 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 relevant information of the cell selection or reselection.

[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 used 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.

[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 that ignores repeater-specific cell selection or reselection related information from the cell selection or reselection related information.

[0016] One of the beneficial effects of the embodiments of the present application is that based on the 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, particular embodiments of the present application are disclosed in detail, illustrating the manner in which the principles of the present application may be employed. The embodiments of the present application are to be understood as not being limited in scope. Many alterations, modifications, and equivalents are encompassed within the spirit and terms of the appended claims.

[0018] Features described and / or illustrated with respect to 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 other embodiments.

[0019] It should be emphasized that the term "comprising" as used herein 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 indicate corresponding parts in the several figures and may be used to indicate corresponding parts used in multiple embodiments. [Brief explanation of the drawings]

[0021] [Figure 1] FIG. 1 is a schematic diagram of an application scenario according to an embodiment of the present application; [Figure 2] FIG. 2 is a schematic diagram of a repeater according to an embodiment of the present application transmitting and receiving signals; [Figure 3] FIG. 10 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; [Figure 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] 1 is a schematic diagram of a cell state determination device according to an embodiment of the present application; [Figure 8] 1 is a schematic diagram of a cell state determination device according to an embodiment of the present application; [Figure 9] 1 is a schematic diagram of a cell state determination device according to an embodiment of the present application; [Figure 10] FIG. 1 is a schematic diagram of a network device according to an embodiment of the present application; [Figure 11] 1 is a schematic diagram of a repeater according to an embodiment of the present application; [Figure 12] 1 is a schematic diagram of a terminal device according to an embodiment of the present application; DETAILED DESCRIPTION OF THE INVENTION

[0022] The foregoing and other features of the present application will become apparent from the following specification, with reference to the drawings. Particular 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 this application, the terms "first," "second," etc. are used to distinguish different elements from the title, but do not indicate the spatial arrangement or chronological order 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," etc., include the plural and should be understood broadly to mean "one of," or "a type of," and not limited to "one." Furthermore, the term "said" includes both the singular and the plural, unless the context clearly indicates otherwise. Furthermore, unless the context clearly indicates otherwise, the term "according to" should be understood as "at least in part according to," and the term "based on" should be understood as "based at least in part on."

[0025] In the 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), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0026] Additionally, communication between devices in a communication system may be accomplished via any suitable generation of communication protocol, 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, for example, in a communication system. 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), a 5G base station (gNB), etc., as well as a remote radio head (RRH), a remote radio unit (RRU), a relay, a low-power node (e.g., femto, pico, etc.), an integrated access and backhaul (IAB) node, an IAB-DU, or an IAB-donor. Furthermore, the term "base station" may include some or all of these functions, and each base station may provide communication coverage for a specific 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 a device that accesses a communication network and receives network services, for example, via a network device. The terminal device may be fixed or mobile, and may also 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 scenarios 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 described 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 described above. In this specification, unless otherwise specified, "device" may refer to either a network device or a terminal device.

[0033] The following describes a scenario in an embodiment of the present invention through an example, but the present invention is not limited thereto.

[0034] 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., a 5G base station gNB or gNB-CU) 101, one repeater 102, and one terminal device (UE) 103 are illustrated as an example, 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. To improve communication quality, signals between the terminal device 103 and the network device 101 are processed (e.g., amplified) 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 operating bands 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-direction (non-time-adaptive) Tx / Rx, or repeaters capable of time-adaptive, 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 an embodiment of the present application, existing or future traffic may be transmitted between a network device and a 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] Although FIG. 1 illustrates an example in which a repeater can relay signals between a network device and a terminal device, the present application is not limited thereto. For example, a repeater may function as a second device that can forward signals between a first device and a third device and communicate directly with the first device and / or the third device. The first device to the third device may be any device in the network described above. 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 embodiments of the present application, a beam may be referred to as a lobe, a reference signal (RS), a transmission configuration indication (TCI), a spatial domain filter, etc. Alternatively, it may be referred to 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 referred to as a TCI state.

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

[0041] In the embodiments of the present application, the network device may be a device of the serving cell of the terminal device, a device of the cell in which the repeater is located, a device of the serving cell of the repeater, or a parent node of the repeater. This application does not limit the name of this 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 this 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 existing terminal devices, which limits the application scenarios of the relay and increases deployment costs.

[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 the cell selection or reselection process of the relay based on relevant information for cell selection or reselection.

[0046] Thus, 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] Note that Figure 4 above merely provides a schematic explanation 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 may be added or some operations may be omitted. Those skilled in the art are not limited to the description of Figure 4 above, and can make appropriate modifications in accordance with the above content.

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

[0049] In some embodiments, in the process of 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, a cell selection process is required when a repeater transitions from Registration Management-Deregistered (RM-DEREGISTERED) to Registration Management-Registered (REGISTERED), or when a repeater transitions from Connection Management-Idle State (CM-IDEL) to Connection Management-Connected State (CM-CONNECTED), and when a repeater transitions from Connection Management-Connected State (CM-CONNECTED) to Connection Management-Idle State (CM-IDEL).

[0051] In some embodiments, the specific process of cell selection is: The non-access stratum (NAS layer) 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 that does not require obtaining the above PLMN-related information via the NAS layer.

[0052] Furthermore, the cell selection process includes an initial cell selection process and an information storage cell selection process. The initial cell selection process includes the repeater scanning all radio frequency channels in the frequency band and performing a cell search for each frequency. The information storage cell selection process includes the repeater receiving and storing information about frequencies (and optional cell parameter information) from the previous measurement setting or the previously detected cell, and performing a cell search preferentially on these frequencies. Here, for each carrier frequency, in a specific cell search process, the repeater determines the cell with the strongest energy value among the cell-defining-synchronization signal and PBCH block (CD-SSBs) based on a 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, and if it cannot determine one suitable cell, it attempts to determine one acceptable cell. If it finds one suitable cell or only one acceptable cell, it stays on that cell and begins the cell reselection process.

[0054] For example, a suitable cell is a cell whose measured cell attributes satisfy the cell selection criteria. Alternatively, 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 Barred 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: 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] Furthermore, the repeater also measures the attributes of the serving cell and neighboring cells to ensure the cell selected by the reselection process. Here, the search and measurement of the different frequency neighboring cells may be performed by specifying 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 priority frequency available.

[0061] The serving cell can provide a neighbor cell list (NCL) that handles specific cases of same-frequency and different-frequency neighbor 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 specific 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 for it to be a candidate cell, is that the relay determines (deems) that the access state of the cell is allowed, not barred, supported, or reserved.

[0068] Note that the above candidate cell may be deemed to be accessible, deemed not barred, deemed suitable, deemed an acceptable cell, deemed capable of normal residence, deemed eligible for selection and / or reselection, etc. Correspondingly, even if the cell is not a candidate cell, it may be deemed to be barred, deemed not suitable, deemed an acceptable cell, not reselected, 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 embodiments of the present application are not intended to limit this description.

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

[0070] In some embodiments, the network device conveys information related to 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 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 existing cell selection or reselection related information and / or determines whether the cell can be a candidate in the repeater's cell selection or reselection process. Alternatively, the repeater uses the existing cell selection or reselection related information to determine whether the cell can be a candidate cell in the repeater's cell selection or reselection process. Alternatively, 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 to determine whether the cell can be a candidate cell in the repeater's cell selection or reselection process. 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, prohibited, 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 to this.

[0073] In some embodiments, the repeater ignoring information related to cell selection or reselection includes ignoring existing cell status information, cell restriction information, and / or same frequency reselection information that indicates cell status 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 status 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), and the status information of a normal terminal device may be indicated by a specific field (area) in the MIB message, for example, the “cellBarred” field in the MIB message, where if the “cellBarred” field is “barred” (“barred”), it means that this cell is barred or is considered to be barred by a normal terminal, and if the “cellBarred” field is “notBarred” (“notBarred”), it means that this cell is not barred or is considered to be not barred by a normal terminal.

[0076] The cell status information applied to a degraded terminal device (RedCap UE), and 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" ("barred"), the cell is considered to be barred for a RedCap UE with one Rx branch or barred for a RedCap UE with one Rx branch. If the "cellBarredRedCap2Rx-r17" field is "barred" ("barred"), the cell is considered to be barred for a RedCap UE with two Rx branches or barred for a RedCap UE with two Rx branches.

[0077] Cell status information applicable 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", this cell can be used (supports) IAB and is a supporting cell for IAB-node; if this field does not appear, this cell cannot be used for IAB, i.e., 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 where a cell is used by an operator (cellReservedForOperatorUse), a reserved state where a cell is used for other purposes (cellReservedForOtherUse), and a reserved state where a cell is used in the future (cellReservedForFutureUse). Further, the restriction information may be carried via an SIB1 message. For example, regarding cellReservedForOperatorUse, it is not applied to an IAB-MT with a non-public network (NPN) function, but is applied to a terminal device (a normal terminal device and / or a RedCap UE). The cellReservedForFutureUse field applies to IAB-MTs (including UEs) and IAB-MTs without NPN functionality; the IAB-MT ignores this information when making cell barring decisions, but the IAB-MT with NPN functionality takes this information into account when determining NPN-only cells; the cellReservedForFutureUse field does not apply to IAB-MTs but does apply to terminal devices. If the field in the restriction information field is "not reserved" or "true," it means that this cell is not reserved or supports this terminal device and / or IAB-MT; if the field is "reserved" or absent, it means that this cell is reserved or does not support this terminal device and / or IAB-MT.

[0079] In some embodiments, 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.

[0080] For example, intra-frequency reselection information applicable to a terminal device (including a normal terminal device and a RedCap UE) is carried by a MIB message, e.g., an "intraFreqReselection" field in the MIB message; 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, intra-frequency reselection information applied to a degraded terminal device (RedCap UE) is carried via an SIB1 message, e.g., an "intraFreqReselectionRedCap-r17" field in the SIB1 message, to control the RedCap UE to select or reselect to another cell of the same frequency if the highest-ranked cell is barred or deemed barred by the RedCap UE. Values ​​include "allowed" and "not allowed" (similar to the above embodiment, and therefore not described here). If this field does not exist, the RedCap UE considers this cell to be barred, i.e., this cell does not support RedCap.

[0082] For example, the repeater ignores the cell status information cellBarred and the intraFreqReselection information intraFreqReselection, which 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 considers the cell not barred, and / or it ignores the "intraFreqReselection" field in the MIB and considers that if this cell or a higher-ranked cell on the frequency where this cell is located is barred or considered barred, then the intra-frequency cells of this cell are not barred or are immediately considered as possible candidate cells for cell reselection.

[0085] It should be noted that in the cell reselection process, if the cell state is "barred" or the cell state is treated as "barred", and the repeater can obtain the current cell state (not because it is unable 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 mentioned above, when a relay receives a SIB1 message, it immediately considers this cell as reserved, ignoring the above "cellReservedForOtherUse" field, and / or it immediately considers this cell as reserved, ignoring the above "cellReservedForFutureUse-r16" field, and / or it immediately considers this cell as reserved, ignoring the above "cellReservedForOperatorUse" field setting.

[0091] As can be seen from the above embodiments, the repeater ignores the 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 considered to be 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 relevant information (existing) for cell selection or reselection to determine whether the cell is considered by the repeater to be allowed, not forbidden, 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 status information, cell restriction information, and / or same frequency reselection information that the network device has configured for the terminal device and / or IAB-MT, i.e., indicating the cell status 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 barred, 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 exists, the relay determines that the cell supports the relay and can be a candidate cell in the relay's cell selection or reselection process; if a field (e.g., iab-support) representing cell status information applicable to IAB or IAB-MT does not exist, the relay determines that the cell does not support the relay and / or cannot be a candidate cell in the relay's cell selection or reselection process. Alternatively, if a field (e.g., iab-support) representing cell status information applicable to IAB or IAB-MT does not exist, the relay determines that the cell supports a relay station and can be a candidate cell in the relay's cell selection or reselection process; if a field (e.g., iab-support) representing cell status information applicable to IAB or IAB-MT exists, the relay determines that the cell does not support a relay station and / or cannot be a candidate cell in the relay's cell selection or reselection process.

[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 the cell selection or reselection process.

[0097] For example, the repeater uses the cell limit 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 barred; if the "cellReservedForFutureUse" field does not appear, the relay 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).

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

[0103] [Table 11] As described above, when the relay receives the SIB1 message, if the "cellReservedForOtherUse" 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 a normal terminal device considers this cell to be barred; if the "cellReservedForOtherUse" field does not appear, the relay considers this cell to be barred, and a 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 relay may use the "cellReservedForOperatorUse" field.

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

[0106] In some embodiments, the repeater 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 "cellReservedForFutureUse" field is "true" and the "cellReservedForOperatorUse" field is "reserved". Otherwise, the repeater considers this cell to be barred, and a normal terminal device considers this cell to be reserved (or a candidate cell in a cell selection or reselection process). Specific examples are not provided 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 considered prohibited or restricted for 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, "relay-specific cell selection or reselection related information" may be indicated in the MIB and / or SIB1. The relay-specific cell selection or reselection related information is a newly added information element (IE) in the related information, and the cell status can be indicated by obtaining a value (type) in a field and / or the cell status can be indicated by the presence or absence of this information element. For example, the relay-specific cell selection or reselection related information is used to indicate whether a cell (and / or a co-frequency cell) can be a candidate cell in the cell selection or reselection process of the relay, and / or whether the cell (and / or the co-frequency cell) supports a relay, and / or whether the cell (and / or the co-frequency cell) is considered to be forbidden by the relay in the cell selection or reselection process, and / or whether the cell (and / or the co-frequency cell) is considered to be reserved by the relay in the cell selection or reselection process, 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 information related to 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 whether the cell supports a repeater, and / or whether the cell is forbidden in the repeater's cell selection or reselection process, and / or 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 barred 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 to indicate 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 mentioned above, the spare field (1 bit) in the MIB message is changed to the "NCR-cellBarred" field, which is used to indicate whether the cell is barred from the repeater. If the "NCR-cellBarred" field is "barred", this cell is barred from the repeater. If the "NCR-cellBarred" field is "notBarred", this 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 the "cellForNCR" field, which is used to indicate whether the cell supports a repeater. If the "cellForNCR" field is "true", this cell supports NCR for a repeater or supports the cell. If the "cellForNCR" field does not appear, this cell does not support NCR for a 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, such as 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 from repeaters. If the "NCR-Support" field is "true", this cell supports NCR from repeaters and is reserved or not barred. If the "NCR-Support" field does not appear, this cell does not support NCR from 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 that is considered forbidden (highest ranked) can be a candidate cell in the repeater's cell selection or reselection process, or whether a repeater can perform cell selection or reselection in a cell that is on the same frequency as a cell that is considered forbidden (highest ranked).

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

[0126] [Table 19]

[0127] [Table 20] As mentioned 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 cell selection or reselection process of the repeater. Here, for each cell on 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 prohibited, and for another cell on 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 for cell 2; otherwise, if the value of the "NCR-intraFreqReselection" field is "not allowed," then for another cell on 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, that is, the repeater does not continue cell selection or reselection for cell 2 any more. Furthermore, a normal terminal device or an IAB-MT device ignores this field.

[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 acquire the current cell state (unless it is unable to acquire 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 was unable to 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 was unable to get a SIB1 message, the relay shall exclude this cell as a candidate cell for cell selection or reselection for 300 seconds.

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

[0131] For example, relay specific cell status information and / or cell restriction information is introduced into 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 specific examples are not shown 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 to 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, and the fields related to the first PLMN or NPN are 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", the cell supports NCR for the repeater and is not barred. If the "NCR-Support" field does not appear, the cell does not support NCR or is barred for the repeater, and vice versa. Furthermore, a normal terminal device or an IAB-MT device may ignore this field.

[0139] In some embodiments, if all of 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 (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 repeater's cell selection or reselection process. If at least one of the related information matching the first PLMN and / or the first NPN includes 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 repeater's cell selection or reselection process. Here, the first PLMN includes at least one of the selected PLMN, the registered PLMN, and the PLMN in the equivalent PLMN list, and at least one of the selected SNPN, the registered SNPN, and the SNPN in the equivalent SNPN list.

[0140] Alternatively, if all the 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, 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.If at least one of the relevant information matching the following first PLMN and / or the first NPN includes the repeater-specific cell status information and / or cell restriction information, it is determined 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) containing a PLMN-Identity when the PLMN-Identity is the same as the selected PLMN (or a registered PLMN, or a PLMN in an equivalent PLMN list). Similarly, the related information matching the first NPN means a field (e.g., NPN-IdentityInfo field) containing an NPN-Identity when 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, if all the relationship information matching the first PLMN and / or the first NPN does not include the repeater-specific cell status information and / or cell restriction information, it indicates 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 matching relationships with the first PLMN and / or the first NPN includes the repeater-specific cell status information and / or cell restriction information, it indicates 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 information related to repeater-specific cell selection or reselection, and the repeater selects or reselects and resides in a cell that is considered prohibited or restricted for use by the terminal device, thereby ensuring flexible deployment of repeaters and reducing costs.

[0144] The above has described how the repeater determines whether the state of a cell is allowed or not, reserved or supported based on the relevant information for 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 determines the cell quality and judges whether the cell quality satisfies a predetermined condition (e.g., S criterion), etc. Only if the predetermined condition is met, the cell may be selected or reselected as a candidate cell. Specifically, reference may be made to the prior art, but the description thereof will be omitted here.

[0145] The above has been described with 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. 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 enables a relay to determine candidate cells in the cell selection or reselection process based on relevant information for cell selection or reselection, 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, and the description is given from the network device side, and the overlapping parts with the examples 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 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 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: Generating cell selection or reselection related information (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: Contains cell restriction information applicable to the terminal device and / or 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 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 the repeater's cell selection or reselection process; and / or Indicating whether the cell supports a repeater; and / or indicating whether the cell is considered barred in the cell selection or reselection process of the relay; and / or It is used to indicate whether the cell is considered reserved 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] Note that Figure 5 above 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 may be added or some operations may be omitted. Those skilled in the art are not limited to the description of Figure 5 above, and can make appropriate modifications in accordance with the above content.

[0158] As can be seen from the above embodiments, the relay determines 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 cell status is provided and explained from the terminal device side.

[0160] 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 the specific content of the information related to cell selection or reselection, please refer to the embodiments of the first aspect, and for the specific process of cell selection or reselection, please refer to the embodiments of the first aspect, and duplicated explanations 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 examples of the first aspect, and duplicate explanations will be omitted.

[0164] Note that Figure 6 above 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 may be added or some operations may be omitted. Those skilled in the art are not limited to the description of Figure 6 above, and can make appropriate modifications in accordance with the above content.

[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 determines the candidate cell 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 of a component or assembly disposed in the repeater, and the same content as in the embodiment of the first aspect is omitted.

[0167] FIG. 7 is a schematic diagram of the 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 the cell selection or reselection process of the repeater based on the relevant information of the cell selection or reselection.

[0168] Thus, 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] Note that Figure 7 above 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 may be added or some operations may be omitted. Those skilled in the art are not limited to the description of Figure 7 above, and can make appropriate modifications in accordance with the above content.

[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: It may also include a first determination module (not shown in FIG. 7) that 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.

[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, and the specific operations thereof 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 the 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 operations may refer to the embodiments of the first aspect, and redundant explanations will be omitted.

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

[0176] In some embodiments, the third determination module or the fourth determination module determines whether the cell can be a candidate cell in the cell selection or reselection process of the repeater, and the specific operations thereof may refer to the embodiments of the first aspect, and redundant 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 on the same frequency as a prohibited cell can be a candidate cell in the cell selection or reselection process of the repeater if the repeater-specific same-frequency reselection information is allowed.

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

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

[0180] Although the above description only describes various components or modules relevant to the present application, 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 be found in the related art.

[0181] Furthermore, for the sake of simplicity, Fig. 7 only exemplifies 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 also be applied. The various components or modules described above may be realized by hardware equipment, such as a processor, a memory, a transmitter, a receiver, etc., but the implementation of the present application is not limited thereto.

[0182] As can be seen from the above embodiments, the relay determines 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 determination 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 the 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 cell selection or reselection process of the repeater.

[0185] This allows the relay to determine candidate cells in the cell selection or reselection process based on the relevant information for cell selection or reselection sent by the cell status determination device 800, thereby ensuring flexible deployment of smart relays 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 descriptions will be omitted.

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

[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 thereof will be omitted here.

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

[0190] Although the above description only describes various components or modules relevant to the present application, 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 be found in the related art.

[0191] Furthermore, for the sake of simplicity, Fig. 8 only exemplifies 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, may be applied. The various components or modules described above may be realized by hardware equipment, such as a processor, a memory, a transmitter, a receiver, etc., but the implementation of the present application is not limited thereto.

[0192] As can be seen from the above embodiments, the relay determines 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 the 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 from 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 related 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-described various embodiments are merely illustrative of the embodiments of the present application, and the present application is not limited thereto. Appropriate modifications may be made based on the above-described various embodiments. For example, the above-described various embodiments may be used individually, or one or more of the above-described various embodiments may be combined.

[0197] Although the above describes only various components or modules related to the present application, 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 be referred to in the related art.

[0198] Furthermore, for the sake of simplicity, Fig. 9 only exemplifies 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, may be applied. The various components or modules described above 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.

[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 determines the candidate cell 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] 10 is a configuration 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, the memory 1020 being 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 method for determining a cell state described in the embodiments of the second aspect.

[0207] Furthermore, as shown in Fig. 10, the network device 1000 may further include a transceiver 1040, an antenna 1050, etc. Here, the functions of the above components are similar to those of the prior art, and therefore, description thereof will be omitted here. Note that the network device 1000 does not need to include all the components shown in Fig. 10. Furthermore, the network device 1000 may further include components not shown in Fig. 10, and prior art may be referred to.

[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 illustrative and that other types of structures may be used to supplement or replace the structures so as to realize telecommunications or other functions.

[0210] For example, the processor 1110 may be configured to execute a program to implement the method for determining a cell state 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 therefore, description thereof will be omitted here. Note that the repeater 1100 does not need to include all the components shown in Fig. 11, and these 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] 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 illustrative and that other types of structures may be used to supplement or replace the structures so as to realize telecommunication or other functions.

[0214] For example, the program 1210 may be arranged to be executed to realize the method for determining the 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 supply 1260. Here, the functions of the above components are similar to those of the prior art, and description thereof will be 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 prior art may be referred to.

[0216] In an embodiment of the present application, a computer program is further provided, wherein, 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 storing a computer program is provided, wherein the computer program causes a repeater to perform the 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 state 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, there is further provided a storage medium storing a computer program, wherein the computer program causes a terminal device to perform the method for determining a cell state according to the embodiment of the third aspect.

[0222] The above-described 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 that, when executed by a logic element, causes the logic element to realize the above-described apparatus or components or to implement the various methods or steps described above. The present application also relates to a storage medium, such as a hard disk, a magnetic disk, an optical disk, a DVD, or a flash memory, on which the program is stored.

[0223] The methods / apparatuses described with reference to the embodiments of the present application may be embodied directly in hardware, as software modules executed by a processor, or as 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 software modules in a computer program flow or hardware modules. These software modules may correspond to steps shown in the figures. These hardware modules may be implemented by implementing these software modules in hardware using, for example, a field programmable gate array (FPGA).

[0224] The software modules 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 integral to the processor. The processor and the storage medium may reside in an ASIC. The software modules may be stored in memory of the mobile terminal or in a memory card insertable 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 modules 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 set forth 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 set forth in the figures may also 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 also fall 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: 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 the cell selection or reselection related information.

[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 Contains cell restriction information applicable to the terminal device and / or IAB-MT; The method 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.

[0231] (Appendix 4) The method described in Appendix 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 comprises: 5. The method of any one of claims 1 to 4, comprising ignoring information related to the cell selection or reselection and / or determining that the cell can be a candidate cell in a cell selection or reselection process of the relay.

[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 comprises: 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 relay.

[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 can be a candidate cell in a cell selection or reselection process of the relay; and 7. The method of claim 6, comprising at least one of determining that the cell can be a candidate cell in a cell selection or reselection process of the relay if the 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 applicable to IAB or IAB-MT exists.

[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 the repeater's cell selection or reselection process; and / or indicating whether the cell supports a repeater; and / or indicating whether the cell is considered barred in the 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 in the 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, determine 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 can 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 cell selection or reselection process of the repeater; 10. The method of claim 9, wherein if the cell selection or reselection related information does not include repeater-specific cell status information and / or cell restriction information, determining that the cell can be a candidate cell in the repeater's cell selection or reselection process.

[0239] (Appendix 12) If all the 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, determine 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, determine that the cell can be a candidate cell in the repeater's cell selection or reselection process; Or, 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, determine that the cell can be a candidate cell in the repeater's cell selection or reselection process; 12. The method of claim 11, wherein 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, determining that the cell is not a candidate cell in the repeater's cell selection or reselection process.

[0240] (Appendix 13) The first PLMN is the selected PLMN, Registered PLMN, including the PLMNs of the equivalent PLMN list, The first NPN is 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 relay-specific cell status information and / or cell restriction information is common to the plurality of PLMNs or SNPNs.

[0242] (Appendix 15) 5. The method of any one of claims 1 to 4, 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 co-frequency with a forbidden cell can be a candidate cell in the cell selection or reselection process of the repeater, or whether the repeater can perform cell selection or reselection in a cell that is co-frequency with a cell that is considered 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. The apparatus of 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 relay to determine whether a cell can be a candidate cell in a cell selection or reselection process of said relay; and A method for determining a cell state, 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 described in Appendix 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 Contains cell restriction information applicable to the terminal device and / or IAB-MT; 21. The method of 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 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 any one of claims 19 to 22, 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 the repeater's cell selection or reselection process; and / or indicating whether the cell supports a repeater; and / or indicating whether the cell is considered barred in the 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 that is co-frequency with a forbidden cell can be a candidate cell in the cell selection or reselection process of the repeater, or whether the repeater can perform cell selection or reselection in a cell that is co-frequency with a cell that is considered 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 described in Appendix 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 perform a method for determining a cell state as set forth in any one of appendices 1 to 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 Supplementary Notes 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 Supplementary Notes 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 determination 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 Contains cell restriction information applicable to the terminal device and / or IAB-MT; 39. 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 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: 41. The apparatus according to any one of claims 37 to 40, comprising a first determination module configured to ignore information relevant to the cell selection or reselection and / or to determine that the cell is a possible candidate cell in a cell selection or reselection process of the relay.

[0265] (Appendix 42) The decision unit: 41. The apparatus of any one of claims 37 to 40, further comprising a second determination module configured to use 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 can 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 can be a candidate cell in a cell selection or reselection process of the relay; and 43. The apparatus of claim 42, wherein if the state of cellReservedForFutureUse is “true”, the second decision module includes at least one of determining that the cell can be a candidate cell in a cell selection or reselection process of the relay.

[0267] (Appendix 44) 43. The apparatus of claim 42, wherein the second determination module determines that the cell can be a candidate cell in the cell selection or reselection process of the relay if a field representing cell status information applicable to IAB or IAB-MT exists.

[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 the repeater's cell selection or reselection process; and / or indicating whether the cell supports a repeater; and / or indicating whether the cell is considered barred in the cell selection or reselection process of the relay; and / or 46. ​​The apparatus of claim 45, wherein the cell is 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: If the cell selection or reselection related information does not include the repeater specific cell status information and / or cell restriction information, determine that the cell is not a candidate cell in the repeater's cell selection or reselection process; a third determination module, used for determining that the cell can be a candidate cell in the 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, 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 in the repeater's cell selection or reselection process; 47. The apparatus of claim 46, further comprising: a fourth determination module adapted to determine that the cell may be a candidate cell in the 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 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 can be a candidate cell in the repeater's cell selection or reselection process; Or, A fourth determination module determines that the cell can 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, wherein 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, the apparatus determines that the cell is not a candidate cell in the repeater's cell selection or reselection process.

[0272] (Appendix 49) The first PLMN is the selected PLMN, Registered PLMN, including the PLMNs of the equivalent PLMN list, The first NPN is Selected SNPN, Registered SNPN, 49. The apparatus of claim 48, including 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 includes 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 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.

[0276] (Appendix 53) The decision unit: 52. The apparatus of claim 51, further comprising a fifth determination module adapted to determine that a cell that is co-frequency with a prohibited cell can 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 clauses 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 used 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.

[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 from the cell selection or reselection related information.

[0280] (Appendix 57) a repeater as defined in Appendix 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. 1. An apparatus for determining a cell state, applied to a network controlled repeater (NCR), comprising: a receiver for receiving information related to cell selection or reselection; and a processor; The processor considers a cell to be a candidate for cell selection by the network-controlled repeater based on the cell selection or reselection related information, and / or ignores the cell selection or reselection related information; The cell selection or reselection related information may or may not include repeater-specific cell status information and / or cell restriction information; The repeater-specific cell status information and / or cell restriction information is used to indicate whether the cell is considered a candidate for cell selection or reselection for the network-controlled repeater and whether the cell supports the network-controlled repeater.

2. 10. The apparatus of claim 1, The cell selection or reselection related information further includes cell status information and / or intra-frequency reselection information.

3. 3. The apparatus of claim 2, The device, wherein the information related to the cell selection or reselection is carried by an MIB and / or an SIB.

4. 4. The apparatus of claim 3, The cell status information includes cell status information applied to a terminal device (user equipment), The cell restriction information includes cell restriction information applied to a terminal device and / or an IAB-MT; The same frequency reselection information includes same frequency reselection information applied to a terminal device.

5. 5. The apparatus of claim 4, The cell restriction information applied to the terminal equipment and / or IAB-MT is: cellReservedForOperatorUse; cellReservedForOtherUse; and cellReservedForFutureUse 10. An apparatus comprising:

6. 5. The apparatus of claim 4, The processor ignores the cellBarred field in the MIB.

7. 6. The apparatus of claim 5, An apparatus, wherein the processor ignores the cellReservedForOperatorUse field and / or the cellReservedForOtherUse field and / or the cellReservedForFutureUse field in the SIB.

8. 5. The apparatus of claim 4, The processor ignores same frequency reselection information in the MIB.

9. 10. The apparatus of claim 1, The repeater-specific cell status information and / or cell restriction information is included in a field in SIB1.

10. 10. The apparatus of claim 9, The fields include supporting the network-controlled repeater and cell status of the network-controlled repeater; If the field is present, the cell supports the network-controlled repeater and the cell is considered to be a candidate for cell selection or reselection by the network-controlled repeater; If the field is not present, the cell does not support the network-controlled repeater and / or the cell is prohibited for the network-controlled repeater.

11. 11. The apparatus of claim 10, The apparatus, wherein the processor considers a cell to be a candidate for cell selection if the cell is indicated by a broadcast SIB to support the network-controlled repeater.

12. 10. The apparatus of claim 1, When multiple PLMNs or NPNs are indicated by SIB1, The repeater-specific cell status information and / or cell restriction information is common to the plurality of PLMNs or NPNs.

13. An apparatus for determining a cell state, applied to a network device, comprising: a processor and a transmitter; the processor generates cell selection or reselection related information, which is used by a network-controlled relay to consider a cell as a candidate for cell selection, and / or the network-controlled relay ignores the cell selection or reselection related information; the transmitter transmits information related to the cell selection or reselection; The cell selection or reselection related information may or may not include repeater-specific cell status information and / or cell restriction information; The repeater-specific cell status information and / or cell restriction information is used to indicate whether the cell is considered a candidate for cell selection or reselection for the network-controlled repeater and whether the cell supports the network-controlled repeater.

14. 14. The apparatus of claim 13, The repeater-specific cell status information and / or cell restriction information is included in a field in SIB1.

15. 15. The apparatus of claim 14, The fields include supporting the network-controlled repeater and cell status of the network-controlled repeater; If the field is present, the cell supports the network-controlled repeater and the cell is considered to be a candidate for cell selection or reselection by the network-controlled repeater; If the field is not present, the cell does not support the network-controlled repeater and / or the cell is prohibited for the network-controlled repeater.

16. 16. The apparatus of claim 15, The apparatus, wherein the processor considers a cell to be a candidate for cell selection if the cell is indicated by a broadcast SIB to support the network-controlled repeater.

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