Cell selection or reselection method, information sending method and device

Abstract

An embodiment of the present application provides a cell selection or reselection method, an information sending method and an apparatus; the cell selection or reselection method includes: a terminal device obtains cell information; and performs a process of cell selection and / or cell reselection based on the cell information, wherein the processing unit at least includes: a determination unit, which is used to determine, based on the cell information, whether a first cell and / or a frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of a terminal device with reduced capability.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communication technologies. Background Art

[0002] In the fifth generation (5G) communication technology, services can be sent between network devices and terminal devices. For example, these services may include but are not limited to: enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable and low-latency communication (URLLC), etc.

[0003] In addition, 5G can also support use cases in many vertical industries, such as connecting devices in industrial environments (such as industrial network wireless sensors) to 5G wireless access and core networks, data transmission of surveillance cameras in smart city innovations, and wearable devices, including smart watches, bracelets, health-related devices and medical monitoring equipment.

[0004] The above use cases are characterized by lower equipment cost and complexity than the current standard versions of high-end eMBB and URLLC equipment, especially industrial wireless sensors. In addition, the requirements for most use cases are that the standard design needs to support equipment with smaller size, low service rate requirements, and long battery life for specific use cases.

[0005] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the present application and facilitating the understanding of those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because they are described in the background technology section of the present application. Summary of the invention

[0006] Currently, the 3rd Generation Partnership Project (3GPP) supports the study of the characteristics and parameters of terminal equipment (hereinafter referred to as UE) with reduced capability (RedCap). The RedCap UE can cover the terminal equipment in the above three use cases and has lower-end capabilities than eMBB and URLLC in the current standard version.

[0007] The inventors have found that since these reduced-capability terminal devices may only support 1 to 2 transceiver antennas and / or limited bandwidth, if cells supporting a large number of RedCap UEs are deployed, network capacity and performance will be lost. Therefore, in order to avoid loss of network capacity and performance, the cell needs to restrict the access of RedCap UEs. Currently, there is no relevant method for supporting or restricting RedCap UEs from accessing a cell.

[0008] In addition, when RedCap UE and non-RedCap UE coexist in the network, there is currently no method for distinguishing the access of RedCap UE and non-RedCap UE.

[0009] In response to at least one of the above problems, embodiments of the present application provide a cell selection or reselection method, an information sending method and device.

[0010] According to one aspect of an embodiment of the present application, a cell selection or reselection method is provided, including:

[0011] The terminal device obtains the cell information;

[0012] The terminal device determines, based on the cell information, whether the first cell and / or the frequency where the first cell is located are candidate cells and / or candidate frequencies in a cell selection and / or cell reselection process of the terminal device with reduced capabilities.

[0013] According to another aspect of an embodiment of the present application, a cell selection or reselection device is provided, which is applied to a terminal device, including:

[0014] An acquisition unit, used for acquiring cell information;

[0015] A determination unit is used to determine whether the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process of a terminal device with reduced capabilities according to the cell information.

[0016] According to another aspect of an embodiment of the present application, there is provided a method for sending information, including:

[0017] The network device generates cell information; the cell information is used by the terminal device to determine whether the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capability;

[0018] The network device sends the cell information.

[0019] According to another aspect of an embodiment of the present application, there is provided an information sending device, which is applied to a network device, including:

[0020] A generating unit, which is used to generate cell information; the cell information is used by the terminal device to determine whether the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the process of cell selection and / or cell reselection of the terminal device with reduced capability;

[0021] A sending unit is used to send the cell information.

[0022] One of the beneficial effects of the embodiments of the present application is that the terminal device can determine whether the cell and / or the frequency where the cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities based on the existing cell information or the improved cell information. In this way, in the process of cell selection and / or reselection, by indicating the access status of the cell for the terminal device with reduced capabilities to support or restrict the terminal device with reduced capabilities (RedCap UE) from accessing a cell, it can help avoid congestion caused by the access and connection of a large number of terminal devices with reduced capabilities, maintain network capacity and provide good services to other conventional terminal devices.

[0023] One of the beneficial effects of the embodiments of the present application is that: when terminal devices with reduced capabilities and terminal devices with non-reduced capabilities (such as conventional terminal devices) coexist in the network, the access of terminal devices with reduced capabilities and terminal devices with non-reduced capabilities can be distinguished, which facilitates network operators to limit the access of terminal devices with reduced capabilities (for example, network operators can set a cell and / or frequency to only provide services related to conventional terminals) or limit the access of terminal devices with conventional capabilities (for example, network operators can set a cell and / or frequency to provide services specifically for communication with terminal devices with reduced capabilities (such as industrial wireless sensors). In addition, the operation is simple and has no impact on the behavior of existing conventional terminal devices.

[0024] One of the beneficial effects of the embodiments of the present application is that by configuring specific parameters for terminal devices with reduced capabilities (for example, relevant parameters for determining suitable cells), the judgment results of cell selection and / or reselection of terminal devices with reduced capabilities (for example, whether it is a suitable cell) can be distinguished from the judgment results of cell selection / or reselection of terminal devices with conventional capabilities, thereby achieving the purpose of restricting terminal devices with reduced capabilities from accessing cells or normally residing in cells.

[0025] With reference to the following description and accompanying drawings, the specific embodiments of the present application are disclosed in detail, indicating the way in which the principles of the present application can be adopted. It should be understood that the embodiments of the present application are not limited in scope. Within the scope of the spirit and clauses of the appended claims, the embodiments of the present application include many changes, modifications and equivalents.

[0026] 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, combined with features in other embodiments, or substituted for features in other embodiments.

[0027] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The elements and features described in one figure or one implementation of the present application embodiment may be combined with the elements and features shown in one or more other figures or implementations. In addition, in the accompanying drawings, similar reference numerals represent corresponding parts in several figures and can be used to indicate corresponding parts used in more than one implementation.

[0029] Figure 1 is a schematic diagram of a communication system according to an embodiment of the present application;

[0030] Figure 2 is a schematic diagram of a cell access scenario in an embodiment of the present application;

[0031] Figure 3 is a schematic diagram of a cell selection or reselection method according to an embodiment of the present application;

[0032] Figure 4A is a schematic diagram of a cell selection method according to an embodiment of the present application;

[0033] Figure 4B is a schematic diagram of a cell reselection method according to an embodiment of the present application;

[0034] Figure 5 is a schematic diagram of a method for sending information according to an embodiment of the present application;

[0035] Figure 6 is a schematic diagram of a cell selection or reselection method according to an embodiment of the present application;

[0036] Figure 7 is another schematic diagram of the cell selection or reselection method according to an embodiment of the present application;

[0037] Figure 8 is another schematic diagram of the cell selection or reselection method according to an embodiment of the present application;

[0038] Fig. 9 is a schematic diagram of a cell selection or reselection device according to an embodiment of the present application;

[0039] Fig.10 is another schematic diagram of the cell selection or reselection device according to an embodiment of the present application;

[0040] Fig.11 is another schematic diagram of the cell selection or reselection device according to an embodiment of the present application;

[0041] Fig.12 is another schematic diagram of the cell selection or reselection device according to an embodiment of the present application;

[0042] Fig.13 is another schematic diagram of the information sending device according to an embodiment of the present application;

[0043] Fig.14 is a schematic diagram of a network device according to an embodiment of the present application;

[0044] Fig.15 It is a schematic diagram of a terminal device according to an embodiment of the present application. DETAILED DESCRIPTION

[0045] With reference to the accompanying drawings, the above and other features of the present application will become apparent through the following description. In the description and the accompanying drawings, specific embodiments of the present application are specifically disclosed, which show some embodiments in which the principles of the present application can be adopted. It should be understood that the present application is not limited to the described embodiments. On the contrary, the present application includes all modifications, variations and equivalents falling within the scope of the attached claims.

[0046] In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish different elements from the title, but do not represent the spatial arrangement or time sequence of these elements, etc., and these elements should not be limited by these terms. The term "and / or" includes any one and all combinations of one or more of the terms listed in association. The terms "comprising", "including", "having", etc. refer to the existence of the stated features, elements, components or components, but do not exclude the existence or addition of one or more other features, elements, components or components.

[0047] In the embodiments of the present application, the singular forms "a", "the", etc. include plural forms and should be broadly understood as "a kind" or "a type" rather than being limited to the meaning of "one"; in addition, the term "said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. In addition, the term "according to" should be understood as "at least in part according to...", and the term "based on" should be understood as "at least in part based on...", unless the context clearly indicates otherwise.

[0048] In an embodiment of the present application, the term "communication network" or "wireless communication network" may refer to a network that complies with any of the following communication standards, such as Long Term Evolution (LTE), enhanced Long Term Evolution (LTE-A, LTE-Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed ​​Packet Access (HSPA, High-Speed ​​Packet Access), etc.

[0049] Furthermore, communication between devices in the communication system may be carried out according to communication protocols of any stage, for example, including but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G, New Radio (NR), etc., and / or other communication protocols currently known or to be developed in the future.

[0050] In the embodiments of the present application, the term "network device" refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services for the terminal device. The network device may include, but is not limited to, the following devices: 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), and the like.

[0051] Among them, base stations may include but are not limited to: NodeB (NodeB or NB), evolved NodeB (eNodeB or eNB) and 5G base station (gNB), etc., and may also include remote radio heads (RRH, Remote Radio Head), remote radio units (RRU, Remote Radio Unit), relays or low-power nodes (such as femeto, pico, etc.). And the term "base station" may include some or all of their functions, and each base station may provide communication coverage for a specific geographical 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.

[0052] In the embodiments of the present application, the term "user equipment" (UE) or "terminal equipment" (TE) refers to, for example, a device that accesses a communication network through a network device and receives network services. 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, and the like.

[0053] Among them, the terminal device may include but is not limited to the following devices: cellular phone, personal digital assistant (PDA, Personal Digital Assistant), wireless modem, wireless communication device, handheld device, machine type communication device, laptop computer, cordless phone, wearable device, smart phone, smart watch, digital camera, etc.

[0054] For another example, in scenarios such as the Internet of Things (IoT), the terminal device can also be a machine or device for monitoring or measuring, such as but not limited to: machine type communication (MTC) terminals, vehicle-mounted communication terminals, industrial wireless equipment, surveillance cameras, device to device (D2D) terminals, machine to machine (M2M) terminals, and the like.

[0055] In addition, the term "network side" or "network device side" refers to one side of the network, which can be a base station or a core network device, or can include one or more network devices as above. The term "user side" or "terminal side" or "terminal device side" refers to the side of the user or terminal, which can be a UE, or can include one or more terminal devices as above. Unless otherwise specified in this document, "device" can refer to network equipment or terminal equipment.

[0056] In this embodiment, "allow", "non-prohibit", and "support" can be used interchangeably. "Do not allow", "prohibit", and "do not support" can be used interchangeably.

[0057] The following describes the scenarios of the embodiments of the present application through examples, but the present application is not limited thereto.

[0058] Figure 1 Schematic diagram of a communication system according to an embodiment of the present application, schematically illustrating a situation in which a terminal device and a network device are used as an example. Figure 1 As shown, the communication system 100 may include a network device 101 and terminal devices 102 and 103. For simplicity, Figure 1 Only two terminal devices and one network device are taken as an example for description, but the embodiments of the present application are not limited to this.

[0059] In the embodiment of the present application, existing services or future services can be sent between the network device 101 and the terminal devices 102 and 103. For example, these services may include but are not limited to: enhanced mobile broadband (eMBB), massive machine type communication (mMTC), ultra-reliable and low-latency communication (URLLC), and related communications of terminal devices with reduced capabilities, etc.

[0060] It is worth noting that Figure 1 It is shown that both terminal devices 102 and 103 are within the coverage of network device 101, but the present application is not limited thereto. Both terminal devices 102 and 103 may not be within the coverage of network device 101, or one terminal device 102 is within the coverage of network device 101 and the other terminal device 103 is outside the coverage of network device 101.

[0061] Figure 2 Schematic diagram of a cell access scenario in an embodiment of the present application. The terminal device must determine the cell access status during the process of powering on, returning to the service area, entering the idle / inactive state from the connected state, or cell reselection, so as to determine whether to camp on or how to camp on the cell. Figure 2As shown, the terminal device searches for signals of three cells during the cell selection and / or reselection process, and needs to determine whether these three cells support UE selection and / or reselection or access or residence, etc. The embodiment of the present application proposes a cell selection or reselection method, and the terminal device can determine whether the cell and / or the frequency where the cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities based on the existing cell information or the improved cell information. In this way, during the cell selection and / or reselection process, by indicating that the cell supports or restricts RedCap UE access to a cell for the access status of the terminal device with reduced capabilities, it can help avoid congestion caused by the access and connection of a large number of terminal devices with reduced capabilities, maintain network capacity and provide good services to other conventional terminal devices. In addition, when terminal devices with reduced capabilities and terminal devices with non-reduced capabilities (such as conventional terminal devices) coexist in the network, the access of terminal devices with reduced capabilities and terminal devices with non-reduced capabilities can be distinguished, which is convenient for network operators to limit the access of terminal devices with reduced capabilities (for example, network operators can set a cell and / or frequency to only provide services related to conventional terminals) or limit the access of terminal devices with conventional capabilities (for example, network operators can set a cell and / or frequency to provide services specifically for communication with terminal devices with reduced capabilities (such as industrial wireless sensors). In addition, the operation is simple and has no impact on the behavior of existing conventional terminal devices. The following is an explanation in conjunction with each embodiment.

[0062] Embodiments of the first aspect

[0063] An embodiment of the present application provides a cell selection or reselection method, which is described from the terminal device side. In the embodiment of the present application, the terminal device is a terminal device with reduced capabilities.

[0064] Figure 3 is a schematic diagram of a cell selection or reselection method according to an embodiment of the present application. Figure 3 As shown, the method includes:

[0065] 301, the terminal device obtains cell information;

[0066] 302. The terminal device determines, based on the cell information, whether the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process of the terminal device with reduced capability.

[0067] It is worth noting that the above Figure 3The embodiments of the present application are only schematically described, but the present application is not limited thereto. For example, the execution order of the various operations can be appropriately adjusted, and other operations can be added or some operations can be reduced. Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the above appended Figure 3 Records of.

[0068] Figure 4A Schematic diagram of a cell selection method in an embodiment of the present application. Figure 4A As shown, the method includes:

[0069] 401, the terminal device performs a cell search;

[0070] 402, the terminal device finds a suitable cell and selects the cell. If not found, it returns to 401.

[0071] The following details are given.

[0072] In some embodiments, the cell selection process includes an initial cell selection process and a cell selection process for storing information. The initial cell selection process includes the terminal device scanning all radio frequency channels in the frequency band, the terminal device performing a cell search on each frequency (for example, the searched cell or frequency can be regarded as a candidate cell or candidate frequency), and when a suitable cell is found, the terminal device selects the cell; the cell selection process for storing information includes the terminal device receiving and storing information about frequencies (and optional cell parameter information) from a previous measurement configuration or from a previously detected cell, the terminal device preferentially performs a cell search on these frequencies (for example, the searched cell or frequency can be regarded as a candidate cell or candidate frequency), and when a suitable cell is found, the terminal device selects the cell, and if no suitable cell is found, the terminal device initiates the initial cell selection process. The above-mentioned suitable cell refers to a cell that at least meets the cell selection S standard and / or the cell is not in a prohibited state and / or the PLMN belongs to a specific PLMN and / or the location area (Tracking area) is not in the prohibited location area list.

[0073] Figure 4B Schematic diagram of a cell reselection method in an embodiment of the present application. Figure 4B As shown, the method includes:

[0074] 401', the terminal device measures the configured cell reselection related frequency and / or cell;

[0075] 402', finding a suitable cell on the above-mentioned specific frequency (high priority or low priority, etc.) according to the comparison result between the measurement result and the threshold;

[0076] 403', reselect the cell and stay in the cell normally.

[0077] The following details are given.

[0078] In some embodiments, the cell reselection process includes a measurement process and a judgment process related to cell reselection. In the measurement process, if the quality of the serving cell is lower than threshold 1, the terminal device performs the same-frequency measurement, and the measured cell (or the frequency where the cell is located) can be used as a candidate cell or candidate frequency; for different-frequency measurement, if the reselection priority of the different frequency related to the cell reselection configured by the network is higher than the reselection priority of the current serving frequency, the terminal device performs the measurement of the different frequency, if the reselection priority of the different frequency related to the cell reselection configured by the network is equal to or lower than the reselection priority of the current serving frequency, then when the quality of the serving cell is lower than threshold 2, the terminal device performs the measurement of the different frequency, and the measured cell (or the frequency where the cell is located) can be used as a candidate cell or candidate frequency. During the judgment process, if the quality of a cell on a different frequency with a higher reselection priority than the current service frequency is greater than threshold 3, the terminal device executes reselection to the cell on the high priority frequency; for cells on the same frequency and the same reselection priority as the current service frequency, the cells are sorted according to the R criterion, and the terminal device executes reselection to the cell of the highest rank; if the quality of a cell on a different frequency with a lower reselection priority than the current service frequency is higher than threshold 4 and the quality of the current service cell is lower than threshold 5, the terminal device executes reselection to the cell on the low priority frequency; wherein, when the terminal device finds a suitable cell on the above-mentioned specific frequency (high priority or low priority, etc.), the terminal device reselects and resides normally in this cell.

[0079] In some embodiments, the candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capability satisfies at least one of the following two conditions:

[0080] A) The cell access status indicates whether the terminal equipment with reduced capabilities is allowed or not prohibited or supported or reserved;

[0081] B) the parameter value indicating the cell quality meets a predetermined condition (S standard);

[0082] The above A) and B) are determined in no particular order, and are described below in combination with the above two conditions.

[0083] For condition A)

[0084] In some embodiments, the access status of the cell for the terminal device with reduced capabilities can be explicitly or implicitly indicated by existing cell information or newly added cell information to determine whether the first cell and / or the frequency where the first cell is located are candidate cells and / or candidate frequencies in the cell selection and / or cell reselection process of the terminal device with reduced capabilities.

[0085] In some embodiments, a new first indication information may be defined in the cell information to explicitly indicate the access status of the cell and / or the frequency where the cell is located for a terminal device with reduced capabilities. For example, the first indication information (cell barred for RedCap UE) is used to indicate that the first cell and / or the frequency where the first cell is located is in a prohibited state or a non-reserved state for a terminal device with reduced capabilities, or the first indication information (cell allow / reserved for RedCap UE or RedCap-support) is used to indicate that the first cell and / or the frequency where the first cell is located is in a supported or reserved state for a terminal device with reduced capabilities.

[0086] In some embodiments, the first indication information is a newly added information element (IE) in the cell information, which can be represented by bits, and the cell access status can be indicated by different bit values, or by the presence or absence of the information element. The following examples are provided.

[0087] In some embodiments, when the cell information includes the first indication information, the cell access status can be indicated by different bit values, for example, the value of the bit is set to 1 to indicate that the first cell and / or the frequency where the first cell is located is in a prohibited state for the terminal device with reduced capabilities, the value of the bit is set to 0 to indicate that the first cell and / or the frequency where the first cell is located is in a supported state for the terminal device with reduced capabilities, or vice versa, or the value of the bit is set to 1 to indicate that the first cell and / or the frequency where the first cell is located is in a reserved state for the terminal device with reduced capabilities, the value of the bit is set to 0 to indicate that the first cell and / or the frequency where the first cell is located is in a non-reserved state for the terminal device with reduced capabilities, or vice versa, which will not be repeated here.

[0088] In the above embodiment, when the first indication information indicates that the first cell and / or the frequency where the first cell is located is in a prohibited or non-reserved state for the terminal device with reduced capabilities, it is determined that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities; and / or, when the first indication information indicates that the first cell and / or the frequency where the first cell is located is in a non-prohibited or supported or reserved state for the terminal device with reduced capabilities, it is determined that the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities; if the first indication information does not appear in the cell information, the network device and the terminal device default that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities, or the network device and the terminal device default that the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities.

[0089] In some embodiments, the cell access status can be indicated by the appearance and non-appearance of the information element, for example, the appearance of the information element (that is, the cell information includes the first indication information) indicates that the first cell and / or the frequency where the first cell is located is in a prohibited state for the terminal device with reduced capabilities, and the non-appearance of the information element (that is, the cell information does not include the first indication information) indicates that the first cell and / or the frequency where the first cell is located is in a supported state for the terminal device with reduced capabilities, or vice versa, or the appearance of the information element (that is, the cell information includes the first indication information) indicates that the first cell and / or the frequency where the first cell is located is in a reserved state for the terminal device with reduced capabilities, and the non-appearance of the information element (that is, the cell information does not include the first indication information) indicates that the first cell and / or the frequency where the first cell is located is in a non-reserved state for the terminal device with reduced capabilities, or vice versa, which will not be repeated here.

[0090] In the above embodiment, when the cell information includes the first indication information (the information element appears), and the appearance of the first indication information indicates that the first cell and / or the frequency where the first cell is located is in a prohibited or non-reserved state for the terminal device with reduced capabilities, it is determined that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities, or the first cell is excluded from the candidate cells for cell selection and / or cell reselection, and / or the frequency where the first cell is located is excluded from the candidate frequencies for cell selection and / or cell reselection; when the cell information does not include the first indication information (the information element does not appear), it is determined that the first cell and / or the frequency where the first cell is located is in a non-prohibited state for the terminal device with reduced capabilities, and then it is determined that the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities, or the first cell and / or the frequency where the first cell is located will not be excluded from the candidate candidate cells and / or candidate frequencies for cell selection and / or cell reselection;

[0091] The opposite is also true, that is,

[0092] When the cell information includes the first indication information (the information element appears), and the appearance of the first indication information indicates that the first cell and / or the frequency where the first cell is located is in a non-prohibited, supported or reserved state for the terminal device with reduced capabilities, it is determined that the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process of the terminal device with reduced capabilities, or the first cell and / or the frequency where the first cell is located will not be excluded from the candidate candidate cells and / or candidate frequencies for cell selection and / or cell reselection; when the cell information does not include the first indication information (the information element does not appear (currently), it is determined that the first cell and / or the frequency where the first cell is located is prohibited or non-reserved for the terminal device with reduced capabilities, and then the first cell and / or the frequency where the first cell is located is excluded from the candidate cells and / or candidate frequencies for cell selection and / or reselection, that is, it is determined that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities, or the first cell is excluded from the candidate cells for cell selection and / or cell reselection, and / or the frequency where the first cell is located is excluded from the candidate frequencies for cell selection and / or cell reselection.

[0093] In some embodiments, relevant information of the reduced-capability terminal device may be newly defined in the cell information to implicitly indicate the access status of the cell and / or the frequency where the cell is located to the reduced-capability terminal device. For example, the relevant information includes at least one of access resource information of the reduced-capability terminal device, system information related to the reduced-capability terminal device, relevant public land mobile network (PLMN) information indicating the reduced-capability terminal device, search space or control resource set information of the reduced-capability terminal device, and bandwidth information of the reduced-capability terminal device.

[0094] For example, the access resources may be physical random access (PRACH) resources or random access message A (Msg.A) resources or random access preamble, etc.; the related PLMN may be a selected PLMN, a registered PLMN, an equivalent PLMN or a home PLMN, etc., and / or information of a related location area (Tracking area), such as a location area code (TAC) or a location area identifier (TAI); the system information related to the terminal device with reduced capabilities may be system information dedicated to the terminal device with reduced capabilities (such as SIB1 or a specific on demand SI); the search space or control resource set information may be a specific search space or control resource set for the terminal device with reduced capabilities to receive system information or paging or random access responses; the bandwidth information may be one or more bandwidths supported by the terminal device with reduced capabilities, etc., and examples are not given one by one here.

[0095] In the above embodiment, the cell access status can be implicitly indicated by the appearance and non-appearance of the relevant information. When the cell information includes the relevant information, it implicitly indicates that the first cell and / or the frequency where the first cell is located is in a supported or reserved state for the terminal device with reduced capabilities, thereby determining that the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities; when the cell information does not include the relevant information, it implicitly indicates that the first cell and / or the frequency where the first cell is located is in a prohibited or non-reserved state for the terminal device with reduced capabilities, thereby determining that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities.

[0096] In some embodiments, the access status of the terminal device with reduced capabilities can be indicated by existing cell information to determine whether the first cell and / or the frequency where the first cell is located are candidate cells and / or candidate frequencies in the cell selection and / or cell reselection process of the terminal device with reduced capabilities.

[0097] In some embodiments, the existing cell information includes at least one of the following information (information elements): second indication information (cellBarred), third indication information (cellReservedForOperatorUse), fourth indication information (cellReservedForOtherUse), and fifth indication information (cellReservedForFutureUse); the second indication information indicates whether the first cell and / or the frequency where the first cell is located is in a prohibited state; the third indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for operator use; the fourth indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for other uses; the fifth indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for future use.

[0098] In some embodiments, one or more combinations of the above-mentioned existing cell information can be used to indicate the cell access status for a terminal device with reduced capabilities. Table 1 is an example of using the above-mentioned four indication information to indicate the cell access status. Table 1 is only an example and is not intended to be a limitation on the embodiments of the present application.

[0099] Table 1

[0100]

[0101] Optionally, the terminal device may also ignore the second indication information, the third indication information, the fourth indication information and the fifth indication information, and determine the candidate cell and / or candidate frequency based on the aforementioned first indication information or related information, which will be specifically described in conjunction with the embodiment of the third aspect.

[0102] In the above embodiment, when it is indicated that the first cell and / or the frequency where the first cell is located is in a supported or non-reserved state for the terminal device with reduced capabilities, it is determined that the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities; when it is indicated that the first cell and / or the frequency where the first cell is located is in a prohibited or non-reserved state for the terminal device with reduced capabilities, it is determined that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities.

[0103] In some embodiments, when the above-mentioned various explicit or implicit indications indicate that the first cell and / or the frequency where the first cell is located is in a supported or reserved state for the terminal device with reduced capabilities, the terminal device also needs to determine the cell access state indicated by the existing second indication information, that is, the terminal device also needs to determine whether the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities based on the indication result of the second indication information. For example, when the indication that the first cell and / or the frequency where the first cell is located is in a supported or reserved state for the terminal device with reduced capabilities, and the second indication information indicates that the first cell and / or the frequency where the first cell is located is not in a prohibited state, the terminal device determines that the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities.

[0104] In addition, for the first type of non-reduced capability terminal equipment (for example, a conventional UE specified in protocol version 15 or 16), when the above-mentioned various explicit or implicit indications indicate that the first cell and / or the frequency where the first cell is located is in a reserved or non-reserved state for the terminal equipment with reduced capability, the first type of non-reduced capability terminal equipment can ignore the first indication information or related information, and determine, according to the provisions of the existing standards, in combination with the existing cell information whether the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the first type of non-reduced capability terminal equipment; for the second type of non-reduced capability terminal equipment (for example, a non-reduced capability terminal equipment specified in protocol version 17 or later), when the above-mentioned various explicit or implicit indications indicate that the first cell and / or the frequency where the first cell is located is in a reserved state for the terminal equipment with reduced capability, it is determined that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the second type of non-reduced capability terminal equipment, which will be specifically described in conjunction with the embodiment of the second aspect.

[0105] For condition B)

[0106] In some embodiments, a parameter value representing cell quality may be calculated using newly added cell information, for example, the cell information includes at least one of a minimum receive power, a minimum quality level, an offset, and a maximum transmit power configured for a terminal device with reduced capabilities.

[0107] In the above embodiment, the terminal device can calculate parameter values ​​representing cell quality, such as Srxlev and Squal, based on the above cell information. When the parameter value does not meet the predetermined condition (S standard), it is determined that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency for cell selection and / or cell reselection.

[0108] For example, the S standard is: Srxlev>0 and Squal>0

[0109] Srxlev=Q rxlevmeas –(Q rxlevmin +Q rxlevminoffset )–P compensation -Qoffset temp；

[0110] Squal=Q qualmeas –(Q qualmin +Q qualminoffset )-Qoffset temp

[0111] Among them, Srxlev represents the cell selection reception level value, Squal represents the cell selection quality, Qoffset temp Indicates the offset temporarily applied to the cell, Q rxlevmeas Indicates the measured cell received power value, Q rxlevmin Indicates the minimum required received power level in the cell (dBm), Q rxlevminoffset Indicates the search for high priority PLMN requirements rxlevmin The offset, P compensation Indicates the compensation between uplink and downlink power, which is related to the maximum transmit power p-Max configured in the cell. qualmeas Indicates the measured cell quality, Q qualmin Indicates the minimum required quality level in the cell (dB), Q qualminoffset Indicates the search for high priority PLMN requirements qualmin offset.

[0112] In the above embodiment, the cell information may include the minimum receiving power Q configured for the terminal device with reduced capability. rxlevmin and / or offset Q rxlevminoffset and / or minimum quality level Q qualmin and / or offset Q qualminoffsetand / or at least one of the maximum transmit power p-Max, at least one of which can be configured to be specific to the terminal device with reduced capabilities, that is, configured to a value different from that of the terminal device with normal capabilities. In this way, by configuring specific parameters (e.g., relevant parameters for judging a suitable cell) for the terminal device with reduced capabilities, the judgment result of cell selection and / or reselection of the terminal device with reduced capabilities (e.g., whether it is a suitable cell) can be distinguished from the judgment result of cell selection / or reselection of the terminal device with normal capabilities, thereby achieving the purpose of restricting the terminal device with reduced capabilities from accessing a cell or normally staying in a cell.

[0113] In some embodiments, the first cell is the second cell corresponding to the cell information and / or other cells except the second cell, and the frequency of the first cell is the first frequency of the second cell and / or other frequencies (different frequencies) except the first frequency. Among them, the other cells include at least one other cell, and the other frequencies include at least one other frequency. In other words, the terminal device obtains the cell information of the second cell, and the cell information may include first indication information or related information related to the second cell and / or the first frequency where the second cell is located, or information for calculating the parameter value, and / or may include first indication information or related information related to other cells except the second cell, or information for calculating the parameter value, and / or include first indication information or related information related to other frequencies except the first frequency, or information for calculating the parameter value, for example, the other cell may be a neighboring cell of the second cell; wherein, when the cell information includes information of multiple cells, it can be represented by a cell list or a frequency list, and Table 2 is an example of the first indication information.

[0114] Table 2

[0115] Frequency List Cell access status for RedCap UE Frequency 1 support Frequency 2 Not supported … …

[0116] Or, represented as a list of frequencies including those supporting RedCap UE:

[0117] FreqForRedCapList::=SEQUENCE(SIZE(1..maxFreqRedCap))OF ARFCN-ValueNR; that is, enumerate all supported frequencies;

[0118] It can also be represented as a frequency list that does not support RedCap UE:

[0119] FreqForBarredRedCapList::=SEQUENCE(SIZE(1..maxFreqBarredRedCap))OFARFCN-ValueNR; that is, enumerate all unsupported frequencies;

[0120] In some embodiments, the above-mentioned cell information may also include a newly added first same-frequency reselection parameter specific to the terminal device with reduced capabilities. For example, the information element of the newly added first same-frequency reselection parameter may be expressed as intraFreqReselection, which is used to indicate whether the terminal device with reduced capabilities is allowed to perform same-frequency reselection. For example, in the process of cell selection and / or reselection, if the parameter is set to allowed (allowed), then when the current cell access state is indicated as a prohibited state for the terminal device with reduced capabilities, the terminal device may select another cell with the same frequency as the current cell; if the parameter is set to not allowed (not allowed), then when the current cell access state is indicated as a prohibited state for the terminal device with reduced capabilities, the terminal device determines that another cell with the same frequency as the current cell is also prohibited, or does not reselect another cell on the same frequency.

[0121] In some embodiments, the above-mentioned cell information may include an existing second intra-frequency reselection parameter. For example, the information element of the second intra-frequency reselection parameter may be expressed as intraFreqReselection, which is used to indicate whether the terminal device is allowed to perform intra-frequency reselection. The second intra-frequency reselection parameter is configured for the above-mentioned first type of non-reduced capability terminal device. The reduced capability terminal device may ignore the second intra-frequency reselection parameter during the cell selection and / or reselection process.

[0122] In some embodiments, the above-mentioned cell information can be carried by system information, which includes a master information block (MIB) or a system information block type 1 (SIB1) or RedCap-specific system information, etc., that is, the terminal device obtains the above-mentioned cell information through the system information broadcast by the network device.

[0123] In some embodiments, the cell information may also be included in a random access response (Random Access Response or RAR) message or a radio resource control rejection (RRC reject) message. For example, during the random access process, the terminal device with reduced capabilities requests access through a random access preamble (i.e., sending Msg1), and the network device sends a random access response (i.e., sending Msg2), wherein the cell information is indicated in the sub-header of the MAC sub-protocol data unit (sub-PDU) of Msg2 or in the (RAR); or, after the terminal device with reduced capabilities sends Msg3 (e.g., RRC request request or RRC resume request resume request), the cell information is included in the RRC reject message sent by the network device.

[0124] In some embodiments, the cell information is common to the PLMN or specific to the PLMN, that is, the common cell information can be configured for each PLMN, or the cell information can be configured for each PLMN respectively.

[0125] In some embodiments, the cell information corresponds to the type or usage scenario of the terminal device with reduced capabilities, that is, the cell information is configured for each type or usage scenario of the terminal device with reduced capabilities, wherein the cell information corresponding to at least one type or usage scenario of the terminal device with reduced capabilities is the same or different. Thus, different access states of cells and / or frequencies where cells are located can be provided for different use cases or types of terminal devices with reduced capabilities, so that network operators can distinguish or restrict access of different types (or different capabilities or different levels) of terminal devices with reduced capabilities, thereby serving different application scenarios (such as industrial wireless sensor networks, surveillance cameras, or wearable devices, etc.).

[0126] For example, for industrial wireless sensor types or usage scenarios, especially safety-related sensors, the required communication service availability (communication service availability) is above 99.99%, that is, it is necessary to ensure the access of these devices as much as possible. Therefore, one type of cell information can be set for this type or usage scenario, and another type of cell information can be set for other types or usage scenarios; or different cell information can be set for each type or usage scenario, and the embodiments of the present application are not limited to this.

[0127] In some embodiments, the determination that the cell is a candidate cell and / or a candidate frequency may also be that the cell is considered accessible, or that the cell is not prohibited, or that the cell is a suitable cell, or that the cell can be normally resident, or that the cell and / or the frequency can be selected and / or reselected, etc.; the non-candidate cell and / or non-candidate frequency may also be that the cell is prohibited, or that the cell is not a suitable cell (suitable cell), or that the cell is an acceptable cell (acceptable cell), or that the cell is temporarily resident, or that the cell and / or the frequency is not reselected, or that the cell and / or the frequency is excluded from the cell selection and / or cell reselection candidates, or that the cell and / or the frequency is excluded from the cell selection and / or cell reselection candidates for a predetermined time (e.g., 300 seconds), etc. The embodiments of the present application do not limit this statement.

[0128] In some embodiments, during the process of cell selection and / or reselection of a terminal device with reduced capabilities, the searched or measured cells and / or frequencies are considered to be candidate cells and / or candidate frequencies, that is, the cells and / or frequencies are considered to be non-prohibited or reserved for the terminal device with reduced capabilities. Only then can they be selected and / or reselected as suitable / acceptable cells by the terminal device with reduced capabilities. In other words, the suitable / acceptable cells found during the cell selection and / or reselection process must not be cells that are prohibited or non-reserved for the terminal device with reduced capabilities.

[0129] In some embodiments, before determining the candidate cell and / or candidate frequency, the cell selection process further includes: the terminal device performs a cell search, searches for at least two third cells with the strongest signals, or determines a fourth cell with a reference signal received power RSRP higher than a threshold; and the terminal device obtains the cell information sent by the third cell or the fourth cell. Different from the prior art, the terminal device does not search for a cell with the strongest signal, but searches for multiple cells with the strongest signals or selects a cell with an RSRP higher than a threshold, thereby increasing the probability of selecting a cell that supports the reduced capability of the terminal device.

[0130] The above embodiments are merely exemplary of the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0131] It can be seen from the above embodiments that the indication information indicating the cell access status in the existing cell selection and / or reselection process does not distinguish the type of terminal equipment to be accessed to the cell, that is, the existing indication information indicating the cell access status does not distinguish whether the type of terminal equipment is a terminal equipment with conventional capabilities or a terminal equipment with reduced capabilities. Therefore, the existing indication information cannot play a role in restricting or supporting terminal equipment with reduced capabilities to access the cell.

[0132] It can be seen from the above embodiments that the terminal equipment can determine whether the cell and / or the frequency where the cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal equipment with reduced capabilities based on the existing cell information or the improved cell information. In this way, in the process of cell selection and / or reselection, by indicating that the cell supports or restricts the access status of the terminal equipment with reduced capabilities to a cell, it can help avoid congestion caused by the access and connection of a large number of terminal equipment with reduced capabilities, maintain network capacity and provide good services to other conventional terminal equipment.

[0133] In addition, when the terminal devices with reduced capabilities and the terminal devices with non-reduced capabilities (such as the terminal devices with conventional capabilities) coexist in the network, the access of the terminal devices with reduced capabilities and the terminal devices with non-reduced capabilities can be distinguished, so that the network operator can limit the access of the terminal devices with reduced capabilities (for example, the network operator can set a cell and / or frequency to only provide services related to the conventional capabilities terminal) or limit the access of the terminal devices with conventional capabilities (for example, the network operator can set a cell and / or frequency to provide services specifically for the communication of the terminal devices with reduced capabilities (such as industrial wireless sensors). In addition, the operation is simple and has no impact on the behavior of the existing conventional terminal devices.

[0134] Embodiments of the second aspect

[0135] An embodiment of the present application provides an information sending method, which is described from the perspective of a network device, wherein the overlapping parts with the embodiment of the first aspect are not repeated.

[0136] Figure 5 is a schematic diagram of the information sending method of an embodiment of the present application, such as Figure 5 As shown, the method includes:

[0137] 501, the network device sends cell information, where the cell information is used by the terminal device to determine whether the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process of the terminal device with reduced capability;

[0138] In some embodiments, the network device sends the cell information through system information, or includes the cell information in a random access response (RAR) message or a radio resource control reject (RRCreject) message and sends it to the terminal device. The implementation method of the cell information can refer to the embodiment of the first aspect, and the repeated parts will not be repeated.

[0139] In some embodiments, the method may further include (optionally):

[0140] 500, the network device generates the cell information;

[0141] In some embodiments, the network device generates cell information corresponding to the type or usage scenario of the terminal device with reduced capabilities based on the type or usage scenario of the terminal device with reduced capabilities, wherein the cell information corresponding to at least one type or usage scenario of the terminal device with reduced capabilities is the same or different. For details, please refer to the embodiment of the first aspect.

[0142] In some embodiments, the cell information is common to the PLMN or specific to the PLMN, that is, the network device may generate common cell information for each PLMN, or generate the cell information for each PLMN respectively.

[0143] It can be seen from the above embodiments that the terminal equipment can determine whether the cell and / or the frequency where the cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal equipment with reduced capabilities based on the existing cell information or the improved cell information. In this way, in the process of cell selection and / or reselection, by indicating that the cell supports or restricts the access status of the terminal equipment with reduced capabilities to a cell, it can help avoid congestion caused by the access and connection of a large number of terminal equipment with reduced capabilities, maintain network capacity and provide good services to other conventional terminal equipment.

[0144] In addition, when the terminal devices with reduced capabilities and the terminal devices with non-reduced capabilities (such as the terminal devices with conventional capabilities) coexist in the network, the access of the terminal devices with reduced capabilities and the terminal devices with non-reduced capabilities can be distinguished, so that the network operator can limit the access of the terminal devices with reduced capabilities (for example, the network operator can set a cell and / or frequency to only provide services related to the conventional capabilities terminal) or limit the access of the terminal devices with conventional capabilities (for example, the network operator can set a cell and / or frequency to provide services specifically for the communication of the terminal devices with reduced capabilities (such as industrial wireless sensors). In addition, the operation is simple and has no impact on the behavior of the existing conventional terminal devices.

[0145] Embodiments of the third aspect

[0146] An embodiment of the present application provides a cell selection or reselection method, which is described from the perspective of a terminal device with reduced capabilities.

[0147] Figure 6 is a schematic diagram of a cell selection or reselection method according to an embodiment of the present application. Figure 6 As shown, the method includes:

[0148] 601, the terminal device obtains cell information, where the cell information includes at least one of a minimum receiving power, a minimum quality level, an offset, and a maximum transmitting power configured for the terminal device with reduced capability;

[0149] 602, the process of the terminal device performing cell selection and / or cell reselection according to the cell information.

[0150] It is worth noting that the above Figure 6The embodiments of the present application are only schematically described, but the present application is not limited thereto. For example, the execution order of the various operations can be appropriately adjusted, and other operations can be added or some operations can be reduced. Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the above appended Figure 6 Records of.

[0151] In some embodiments, the process of cell selection and / or reselection includes at least: calculating a parameter value representing the cell quality, and determining based on the parameter value whether the first cell and / or the frequency where the first cell is located reduces the candidate cells and / or candidate frequencies in the cell selection and / or cell reselection process of the terminal device.

[0152] For example, a parameter value representing the cell quality may be calculated using newly added cell information, such as the cell information including at least one of a minimum receive power, a minimum quality level, an offset, and a maximum transmit power configured for a terminal device with reduced capabilities.

[0153] In the above embodiment, the terminal device can calculate a parameter value representing the cell quality based on the above cell information. When the parameter value does not meet a predetermined condition (S standard), it is determined that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or a candidate frequency. For details, please refer to the embodiment of the first aspect and will not be repeated here.

[0154] It can be seen from the above embodiments that by configuring specific parameters for the terminal equipment with reduced capabilities (for example, relevant parameters for judging suitable cells), the judgment results of cell selection and / or reselection of the terminal equipment with reduced capabilities (for example, whether it is a suitable cell) can be distinguished from the judgment results of cell selection / or reselection of the terminal equipment with normal capabilities, thereby achieving the purpose of restricting the terminal equipment with reduced capabilities from accessing cells or normally staying in cells.

[0155] Embodiments of the fourth aspect

[0156] An embodiment of the present application provides a cell selection or reselection method, which is described from the perspective of a terminal device with reduced capabilities.

[0157] Figure 7 is a schematic diagram of a cell selection or reselection method according to an embodiment of the present application. Figure 7 As shown, the method includes:

[0158] 701, the terminal device obtains cell information; the cell information includes at least one of second indication information, third indication information, fourth indication information, and fifth indication information, the second indication information indicates whether the first cell and / or the frequency where the first cell is located is in a prohibited state; the third indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for use by the operator; the fourth indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for other use; the fifth indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for future use;

[0159] 702, the terminal device ignores the cell information and performs a process of cell selection and / or cell reselection.

[0160] It is worth noting that the above Figure 7 The embodiments of the present application are only schematically described, but the present application is not limited thereto. For example, the execution order of the various operations can be appropriately adjusted, and other operations can be added or some operations can be reduced. Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the above appended Figure 7 Records of.

[0161] In some embodiments, the implementation of the second indication information, the third indication information, the fourth indication information, and the fifth indication information can refer to the embodiment of the first aspect and will not be repeated here.

[0162] In some embodiments, the RedCap UE does not consider (ignores) the above-mentioned cell information when performing the cell selection and / or cell reselection process. For example, when you want to restrict the access of non-RedCap UEs and support the access of RedCap UEs, you can set the above-mentioned cell information to a prohibited state or a reserved state, that is, for non-RedCap UEs, the cell and / or the frequency where the cell is located is considered not to be a candidate cell and / or candidate frequency, that is, the access of non-RedCap UEs is restricted, and the RedCap UE ignores the above-mentioned cell information, that is, it has no effect on the cell selection and / or reselection process of the RedCap UE.

[0163] It can be seen from the above embodiments that when terminal devices with reduced capabilities and terminal devices with non-reduced capabilities (such as conventional terminal devices) coexist in the network, the access of terminal devices with reduced capabilities and terminal devices with non-reduced capabilities can be distinguished, which is convenient for network operators to limit the access of terminal devices with reduced capabilities (for example, network operators can set a cell and / or frequency to only provide services related to conventional terminals) or limit the access of terminal devices with conventional capabilities (for example, network operators can set a cell and / or frequency to provide services specifically for communication with terminal devices with reduced capabilities (such as industrial wireless sensors). In addition, the operation is simple and has no impact on the behavior of existing conventional terminal devices.

[0164] Embodiments of the fifth aspect

[0165] An embodiment of the present application provides a cell selection or reselection method, which is described from the perspective of a second type of non-reduced capability terminal device.

[0166] Figure 8 is a schematic diagram of a cell selection or reselection method according to an embodiment of the present application. Figure 8 As shown, the method includes:

[0167] 801, the terminal device obtains cell information;

[0168] 802, the terminal device determines, according to the cell information, whether the first cell and / or the frequency where the first cell is located is in a reserved state for the terminal device with reduced capability;

[0169] 803. When it is determined to be in the retention state, the terminal device excludes the first cell and / or the frequency where the first cell is located from the candidate cells and / or candidate frequencies in the cell selection and / or cell reselection process; and performs the cell selection and / or cell reselection process according to the exclusion result.

[0170] It is worth noting that the above Figure 8 The embodiments of the present application are only schematically described, but the present application is not limited thereto. For example, the execution order of the various operations can be appropriately adjusted, and other operations can be added or some operations can be reduced. Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the above appended Figure 8 Records of.

[0171] In some embodiments, the cell information may be the first indication information or related information described in the embodiment of the first aspect. The specific operations of 801-802 may refer to the embodiment of the first aspect and will not be repeated here.

[0172] In some embodiments, when it is determined that the first cell and / or the frequency where the first cell is located is in a reserved state for a terminal device with reduced capabilities, the terminal device with reduced capabilities will determine that the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency, and the second type of non-reduced capability terminal device will exclude the first cell and / or the frequency where the first cell is located from the candidate cells and / or candidate frequencies in the cell selection and / or cell reselection process; the process of performing cell selection and / or cell reselection based on the exclusion result can be specifically referred to the relevant technology and will not be repeated here.

[0173] As can be seen from the above embodiments, non-reduced-capacity terminal devices can determine whether the cell and / or the frequency where the cell is located is allowed to access based on the cell information. Therefore, the network operator can prohibit the access of non-reduced-capacity terminal devices by setting the cell information, thereby setting specific cells and / or frequencies to specifically serve the relevant services of reduced-capacity terminal devices, and performing specific settings and optimization of network parameters based on the relevant services, etc., which helps to better provide services for reduced-capacity terminal devices. For example, in an industrial or factory environment, a certain cell(s) and / or frequency can be set as a dedicated network for industrial wireless sensor service communications.

[0174] Embodiments of the sixth aspect

[0175] The embodiment of the present application provides a cell selection or reselection device. The device may be, for example, a terminal device (such as a terminal device with reduced capabilities), or may be one or more components or assemblies configured in the terminal device, and the contents identical to those of the embodiment of the first aspect are not repeated here.

[0176] Fig. 9 is another schematic diagram of the cell selection or reselection device according to an embodiment of the present application, such as Fig. 9 As shown, the cell selection or reselection device 900 includes:

[0177] An acquisition unit 901, which acquires cell information;

[0178] The determination unit 902 determines, according to the cell information, whether the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process of a terminal device with reduced capability.

[0179] In some embodiments, the acquisition unit 901 and the determination unit 902 may refer to 301-302 of the first aspect embodiment, which will not be repeated here.

[0180] In some embodiments, the cell information includes first indication information or does not include first indication information, and the first indication information is used to indicate that the first cell and / or the frequency where the first cell is located is in a prohibited state or a non-reserved state for the terminal device with reduced capabilities, or the first indication information is used to indicate that the first cell and / or the frequency where the first cell is located is in a supported or reserved state for the terminal device with reduced capabilities.

[0181] In some embodiments, the determining unit 902 includes:

[0182] a first determination module (not shown), configured to determine that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process of the terminal device with reduced capability, when the cell information includes the first indication information and the first indication information indicates that the first cell and / or the frequency where the first cell is located is in a prohibited or non-reserved state for the terminal device with reduced capability;

[0183] and / or,

[0184] a second determination module (not shown), configured to determine that the first cell and / or the frequency of the first cell is a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process of the terminal device with reduced capability, when the cell information includes the first indication information and the first indication information indicates that the first cell and / or the frequency of the first cell is in a non-prohibited, supported or reserved state for the terminal device with reduced capability;

[0185] In some embodiments, the determining unit 902 includes:

[0186] a third determination module (not shown), configured to determine that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process of a terminal device with reduced capabilities when the cell information includes the first indication information and the first indication information indicates that the first cell and / or the frequency where the first cell is located is a prohibited or non-reserved state for the terminal device with reduced capabilities; and to determine that the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process of a terminal device with reduced capabilities when the cell information does not include the first indication information;

[0187] or,

[0188] A fourth determination module (not shown) is used to determine that the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities when the cell information includes the first indication information and the first indication information indicates that the first cell and / or the frequency where the first cell is located is a non-prohibited, supported or reserved state for the terminal device with reduced capabilities; and to determine that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities when the cell information does not include the first indication information.

[0189] In the above embodiment, the third determination module determines that the first cell and / or the frequency where the first cell is located is in a non-prohibited state for the terminal device with reduced capabilities when the cell information does not include the first indication information, and the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities; or, the fourth determination module determines that the first cell and / or the frequency where the first cell is located is in a prohibited or non-reserved state for the terminal device with reduced capabilities when the cell information does not include the first indication information, and determines that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities.

[0190] In some embodiments, the cell information includes or does not include relevant information of the terminal device with reduced capabilities, the relevant information including at least one of access resource information of the terminal device with reduced capabilities, system information related to the terminal device with reduced capabilities, relevant PLMN information indicating the terminal device with reduced capabilities, search space or control resource set information of the terminal device with reduced capabilities, and bandwidth information of the terminal device with reduced capabilities. The determining unit 902 includes:

[0191] A fifth determination module (not shown) is used to determine that the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the process of cell selection and / or cell reselection of a terminal device with reduced capabilities when the cell information includes the relevant information; and to determine that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency in the process of cell selection and / or cell reselection of a terminal device with reduced capabilities when the cell information does not include the relevant information.

[0192] In some embodiments, the cell information also includes at least one of second indication information, third indication information, fourth indication information, and fifth indication information, the second indication information indicating whether the first cell and / or the frequency where the first cell is located is in a prohibited state; the third indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for operator use; the fourth indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for other uses; and the fifth indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for future use.

[0193] In some embodiments, the determining unit 902 further includes:

[0194] The seventh determination module (not shown) is used to determine whether the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capability based on at least one of the second indication information, the third indication information, the fourth indication information and the fifth indication information.

[0195] In some embodiments, the determining unit 902 may also ignore the second indication information, the third indication information, the fourth indication information and the fifth indication information.

[0196] In some embodiments, the determination unit 902 determines that the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capability when the second indication information indicates that the first cell and / or the frequency where the first cell is located is not in a prohibited state, and determines that the first cell and / or the frequency where the first cell is located is in a reserved state for the terminal device with reduced capability.

[0197] In some embodiments, the cell information includes at least one of a minimum receive power, a minimum quality level, an offset, and a maximum transmit power configured for the reduced capability terminal device.

[0198] In this implementation, the determining unit 902 further includes:

[0199] a calculation module (not shown), configured to calculate a parameter value representing cell quality according to the cell information;

[0200] The sixth determination module (not shown) is configured to determine that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or a candidate frequency when the parameter value does not satisfy a predetermined condition.

[0201] In some embodiments, the above-mentioned first determination module, second determination module, third (fourth) determination module, fifth determination module, sixth determination module, and seventh determination module can be implemented separately or in combination, and this embodiment is not limited to this.

[0202] In some embodiments, the first cell is the second cell corresponding to the cell information and / or other cells except the second cell, and the frequency of the first cell is the first frequency of the second cell and / or other frequencies except the first frequency. The other cells include at least one other cell, and the other frequencies include at least one other frequency.

[0203] In some embodiments, the cell information is carried by system information, or the cell information may also be included in a random access response (Random Access Response or RAR) message or a radio resource control reject (RRC reject) message.

[0204] In some embodiments, the cell information corresponds to the type or usage scenario of the terminal device with reduced capabilities, that is, the cell information is configured separately for each type or usage scenario of the terminal device with reduced capabilities, wherein the cell information corresponding to at least one type or usage scenario of the terminal device with reduced capabilities is the same or different; and / or the cell information is PLMN-common or PLMN-specific.

[0205] In some embodiments, the apparatus further comprises:

[0206] A search unit (optional, not shown), configured to search for at least two third cells with the strongest signals, or determine a fourth cell with an RSRP higher than a threshold;

[0207] Furthermore, the acquiring unit 901 acquires the cell information sent by the third cell and / or the fourth cell.

[0208] The above embodiments are merely exemplary of the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0209] It is worth noting that only the components or modules related to the present application are described above, but the present application is not limited thereto. The cell selection or reselection device 900 may also include other components or modules, and the specific contents of these components or modules may refer to the relevant technology.

[0210] Furthermore, for simplicity, Fig. 9The connection relationship or signal direction between the various components or modules is only exemplified, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned various components or modules can be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the implementation of this application is not limited to this.

[0211] It can be seen from the above embodiments that the terminal equipment can determine whether the cell and / or the frequency where the cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal equipment with reduced capabilities based on the existing cell information or the improved cell information. In this way, in the process of cell selection and / or reselection, by indicating that the cell supports or restricts the access status of the terminal equipment with reduced capabilities to a cell, it can help avoid congestion caused by the access and connection of a large number of terminal equipment with reduced capabilities, maintain network capacity and provide good services to other conventional terminal equipment.

[0212] In addition, when the terminal devices with reduced capabilities and the terminal devices with non-reduced capabilities (such as the terminal devices with conventional capabilities) coexist in the network, the access of the terminal devices with reduced capabilities and the terminal devices with non-reduced capabilities can be distinguished, so that the network operator can limit the access of the terminal devices with reduced capabilities (for example, the network operator can set a cell and / or frequency to only provide services related to the conventional capabilities terminal) or limit the access of the terminal devices with conventional capabilities (for example, the network operator can set a cell and / or frequency to provide services specifically for the communication of the terminal devices with reduced capabilities (such as industrial wireless sensors). In addition, the operation is simple and has no impact on the behavior of the existing conventional terminal devices.

[0213] Embodiment of the seventh aspect

[0214] The embodiment of the present application provides a cell selection or reselection device. The device may be, for example, a terminal device, or may be one or more components or assemblies configured in the terminal device, and the contents identical to those in the embodiment of the third aspect will not be repeated.

[0215] Fig.10 is another schematic diagram of the cell selection or reselection device according to an embodiment of the present application, such as Fig.10 As shown, the cell selection or reselection device 1000 includes:

[0216] An acquiring unit 1001, which acquires cell information, the cell information including at least one of a minimum receiving power, a minimum quality level, an offset, and a maximum transmitting power configured for a terminal device with reduced capability;

[0217] The processing unit 1002 performs a cell selection and / or cell reselection process according to the cell information.

[0218] In some embodiments, the acquisition unit 1001 and the processing unit 1002 may refer to 601-602 of the third aspect embodiment and will not be repeated here.

[0219] The above embodiments are merely exemplary of the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0220] It is worth noting that only the components or modules related to the present application are described above, but the present application is not limited thereto. The cell selection or reselection device 1000 may also include other components or modules, and the specific contents of these components or modules may refer to the relevant technology.

[0221] Furthermore, for simplicity, Fig.10 The connection relationship or signal direction between the various components or modules is only exemplified, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned various components or modules can be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the implementation of this application is not limited to this.

[0222] It can be seen from the above embodiments that by configuring specific parameters for the terminal equipment with reduced capabilities (for example, relevant parameters for judging suitable cells), the judgment results of cell selection and / or reselection of the terminal equipment with reduced capabilities (for example, whether it is a suitable cell) can be distinguished from the judgment results of cell selection / or reselection of the terminal equipment with normal capabilities, thereby achieving the purpose of restricting the terminal equipment with reduced capabilities from accessing cells or normally staying in cells.

[0223] Embodiments of the eighth aspect

[0224] The embodiment of the present application provides a cell selection or reselection device. The device may be, for example, a terminal device, or may be one or more components or assemblies configured in the terminal device, and the contents identical to those in the embodiment of the fourth aspect will not be repeated.

[0225] Fig.11 is another schematic diagram of the cell selection or reselection device according to an embodiment of the present application, such as Fig.11 As shown, the cell selection or reselection device 1100 includes:

[0226] An acquiring unit 1101 is configured to acquire cell information; the cell information includes at least one of second indication information, third indication information, fourth indication information, and fifth indication information, wherein the second indication information indicates whether the first cell and / or the frequency where the first cell is located is in a prohibited state; the third indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for use by an operator; the fourth indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for other use; and the fifth indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for future use;

[0227] The processing unit 1102 ignores the cell information and performs a process of cell selection and / or cell reselection.

[0228] In some embodiments, the acquisition unit 1101 and the processing unit 1102 can refer to 701-702 of the fourth aspect embodiment and will not be repeated here.

[0229] The above embodiments are merely exemplary of the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0230] It is worth noting that only the components or modules related to the present application are described above, but the present application is not limited thereto. The cell selection or reselection device 1100 may also include other components or modules, and the specific contents of these components or modules may refer to the relevant technology.

[0231] Furthermore, for simplicity, Fig.11 The connection relationship or signal direction between the various components or modules is only exemplified, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned various components or modules can be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the implementation of this application is not limited to this.

[0232] It can be seen from the above embodiments that when terminal devices with reduced capabilities and terminal devices with non-reduced capabilities (such as conventional terminal devices) coexist in the network, the access of terminal devices with reduced capabilities and terminal devices with non-reduced capabilities can be distinguished, which is convenient for network operators to limit the access of terminal devices with reduced capabilities (for example, network operators can set a cell and / or frequency to only provide services related to conventional terminals) or limit the access of terminal devices with conventional capabilities (for example, network operators can set a cell and / or frequency to provide services specifically for communication with terminal devices with reduced capabilities (such as industrial wireless sensors). In addition, the operation is simple and has no impact on the behavior of existing conventional terminal devices.

[0233] Embodiment of the ninth aspect

[0234] The embodiment of the present application provides a cell selection or reselection device. The device may be, for example, a terminal device, or may be one or more components or assemblies configured in the terminal device, and the contents identical to those in the embodiment of the fifth aspect will not be repeated.

[0235] Fig.12 is another schematic diagram of the cell selection or reselection device according to an embodiment of the present application, such as Fig.12 As shown, the cell selection or reselection device 1200 includes:

[0236] An acquiring unit 1201, which acquires cell information;

[0237] A determination unit 1202, which determines whether the first cell and / or the frequency where the first cell is located is in a reserved state for the terminal device with reduced capability according to the cell information;

[0238] Processing unit 1203, when determining unit 1202 determines that it is in the retention state, the terminal device excludes the first cell and / or the frequency where the first cell is located from the candidate cells and / or candidate frequencies in the cell selection and / or cell reselection process; and performs the cell selection and / or cell reselection process according to the exclusion result.

[0239] In some embodiments, the acquisition unit 1201, the determination unit 1202 and the processing unit 1203 can refer to 400-401 of the fifth aspect embodiment and will not be repeated here.

[0240] The above embodiments are merely exemplary of the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0241] It is worth noting that the above only describes the components or modules related to the present application, but the present application is not limited thereto. The cell selection or reselection device 1200 may also include other components or modules, and the specific contents of these components or modules may refer to the relevant technology.

[0242] Furthermore, for simplicity, Fig.12 The connection relationship or signal direction between the various components or modules is only exemplified, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned various components or modules can be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the implementation of this application is not limited to this.

[0243] As can be seen from the above embodiments, non-reduced-capacity terminal devices can determine whether the cell and / or the frequency where the cell is located is allowed to access based on the cell information. Therefore, the network operator can prohibit the access of non-reduced-capacity terminal devices by setting the cell information, thereby setting specific cells and / or frequencies to specifically serve the relevant services of reduced-capacity terminal devices, and performing specific settings and optimization of network parameters based on the relevant services, etc., which helps to better provide services for reduced-capacity terminal devices. For example, in an industrial or factory environment, a certain cell(s) and / or frequency can be set as a dedicated network for industrial wireless sensor service communications.

[0244] Embodiments of the tenth aspect

[0245] The embodiment of the present application provides an information sending device, which may be, for example, a network device, or may be one or more components or assemblies configured in the network device, and the same contents as those in the embodiment of the second aspect will not be repeated.

[0246] Fig.13 is another schematic diagram of the information sending device according to an embodiment of the present application. Fig.13 As shown, the cell selection or reselection device 1300 includes:

[0247] A sending unit 1301, which sends cell information, where the cell information is used by a terminal device to determine whether a first cell and / or a frequency where the first cell is located is a candidate cell and / or a candidate frequency in a cell selection and / or cell reselection process of a terminal device with reduced capability;

[0248] In some embodiments, the sending unit 1301 carries the cell information through system information, or may also carry the cell information through a random access response message or an RRC reject message. The implementation method of the cell information may refer to the embodiment of the first aspect, and the repeated parts will not be repeated.

[0249] In some embodiments, the apparatus may further include (optionally):

[0250] A generating unit 1302, which generates the cell information;

[0251] In some embodiments, the sending unit 1301 and the generating unit 1302 may refer to 500-501 of the embodiment of the second aspect, and the cell information may refer to the embodiment of the first aspect, which will not be repeated here.

[0252] The above embodiments are merely exemplary of the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0253] It is worth noting that the above only describes the components or modules related to the present application, but the present application is not limited thereto. The information sending device 1300 may also include other components or modules, and the specific contents of these components or modules may refer to the relevant technology.

[0254] Furthermore, for simplicity, Fig.13 The connection relationship or signal direction between the various components or modules is only exemplified, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned various components or modules can be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the implementation of this application is not limited to this.

[0255] It can be seen from the above embodiments that the terminal equipment can determine whether the cell and / or the frequency where the cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal equipment with reduced capabilities based on the existing cell information or the improved cell information. In this way, in the process of cell selection and / or reselection, by indicating that the cell supports or restricts the access status of the terminal equipment with reduced capabilities to a cell, it can help avoid congestion caused by the access and connection of a large number of terminal equipment with reduced capabilities, maintain network capacity and provide good services to other conventional terminal equipment.

[0256] In addition, when the terminal devices with reduced capabilities and the terminal devices with non-reduced capabilities (such as the terminal devices with conventional capabilities) coexist in the network, the access of the terminal devices with reduced capabilities and the terminal devices with non-reduced capabilities can be distinguished, so that the network operator can limit the access of the terminal devices with reduced capabilities (for example, the network operator can set a cell and / or frequency to only provide services related to the conventional capabilities terminal) or limit the access of the terminal devices with conventional capabilities (for example, the network operator can set a cell and / or frequency to provide services specifically for the communication of the terminal devices with reduced capabilities (such as industrial wireless sensors). In addition, the operation is simple and has no impact on the behavior of the existing conventional terminal devices.

[0257] Embodiment of the eleventh aspect

[0258] The present application also provides a communication system. Figure 1 , the contents that are the same as those in the embodiments of the first to tenth aspects will not be repeated.

[0259] In some embodiments, the communication system 100 may include at least: a terminal device 102 and a network device 101 .

[0260] In some embodiments, the network device 101 sends cell information, and the terminal device 102 obtains the cell information; based on the cell information, it is determined whether the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capability.

[0261] In some embodiments, the network device 101 sends cell information, and the terminal device 102 obtains the cell information, which includes at least one of the minimum receiving power, minimum quality level, offset, and maximum transmitting power configured for the terminal device with reduced capabilities; and performs a process of cell selection and / or cell reselection based on the cell information.

[0262] In some embodiments, the network device 101 sends cell information, and the terminal device 102 obtains the cell information, the cell information including at least one of the second indication information, the third indication information, the fourth indication information, and the fifth indication information, the second indication information indicating whether the first cell and / or the frequency where the first cell is located is in a prohibited state; the third indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for operator use; the fourth indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for other uses; the fifth indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for future use; the terminal device 102 ignores the cell information to perform a process of cell selection and / or cell reselection.

[0263] In some embodiments, the network device 101 sends cell information, the terminal device 102 obtains the cell information, and determines based on the cell information whether the first cell and / or the frequency where the first cell is located is in a reserved state for the terminal device with reduced capabilities; when it is determined to be in a reserved state, the terminal device 102 excludes the first cell and / or the frequency where the first cell is located from the candidate cells and / or candidate frequencies in the cell selection and / or cell reselection process; and performs the cell selection and / or cell reselection process based on the exclusion result.

[0264] An embodiment of the present application further provides a network device, which may be, for example, a base station, but the present application is not limited thereto and may also be other network devices.

[0265] Fig.14 Schematic diagram of the network device in the embodiment of the present application. Fig.14 As shown, the network device 1400 may include: a processor 1410 (e.g., a central processing unit CPU) and a memory 1420; the memory 1420 is coupled to the processor 1410. The memory 1420 may store various data; in addition, it may store a program 1430 for information processing, and execute the program 1430 under the control of the processor 1410.

[0266] For example, the processor 1410 may be configured to execute a program to implement the information sending method as described in the embodiment of the second aspect. For example, the processor 1410 may be configured to perform the following control: sending cell information, where the cell information is used by the terminal device to determine whether the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process of a terminal device with reduced capability.

[0267] In addition, if Fig.14 As shown, the network device 1400 may also include: a transceiver 1440 and an antenna 1450, etc.; wherein the functions of the above components are similar to those of the prior art and are not described here. It is worth noting that the network device 1400 does not necessarily have to include Fig.14 In addition, the network device 1400 may also include Fig.14 For components not shown, reference may be made to the prior art.

[0268] The embodiment of the present application also provides a terminal device, but the present application is not limited thereto and may also be other devices.

[0269] Fig.15 Schematic diagram of a terminal device in an embodiment of the present application. Fig.15As shown, the terminal device 1500 may include a processor 1510 and a memory 1520; the memory 1520 stores data and programs and is coupled to the processor 1510. It is worth noting that this figure is exemplary; other types of structures may also be used to supplement or replace this structure to implement telecommunication functions or other functions.

[0270] For example, the processor 1510 may be configured to execute a program to implement the cell selection or reselection method as described in the first, third to fifth aspects of the embodiments. For example, the processor 1510 may be configured to perform the following control: obtaining cell information; determining, based on the cell information, whether the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capability.

[0271] For example, processor 1510 can be configured to perform the following control: obtaining cell information; the cell information includes at least one of second indication information, third indication information, fourth indication information, and fifth indication information, the second indication information indicating whether the first cell and / or the frequency where the first cell is located is in a prohibited state; the third indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for operator use; the fourth indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for other uses; the fifth indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for future use, and the cell information is ignored to perform a process of cell selection and / or cell reselection.

[0272] For example, processor 1510 can be configured to perform the following control: obtaining cell information; determining, based on the cell information, whether the first cell and / or the frequency where the first cell is located is in a reserved state for a terminal device with reduced capabilities; when it is determined to be in a reserved state, excluding the first cell and / or the frequency where the first cell is located from candidate cells and / or candidate frequencies in a cell selection and / or cell reselection process; and performing a cell selection and / or cell reselection process based on the exclusion result.

[0273] For example, processor 1510 can be configured to perform the following control: obtaining cell information, the cell information including at least one of a minimum receiving power, a minimum quality level, an offset, and a maximum transmitting power configured for a terminal device with reduced capabilities; and performing a cell selection and / or cell reselection process based on the cell information.

[0274] like Fig.15 As shown, the terminal device 1500 may also include: a communication module 1530, an input unit 1540, a display 1550, and a power supply 1560. The functions of the above components are similar to those of the prior art and are not described here. It is worth noting that the terminal device 1500 does not necessarily have to include Fig.15 All components shown in the figure are not necessary; in addition, the terminal device 1500 may also include Fig.15 For components not shown, reference may be made to the prior art.

[0275] An embodiment of the present application also provides a computer program, wherein when the program is executed in a terminal device, the program enables the terminal device to execute the cell selection or reselection method described in the first, third to fifth embodiments.

[0276] An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the cell selection or reselection method described in the first, third to fifth embodiments.

[0277] An embodiment of the present application also provides a computer program, wherein when the program is executed in a network device, the program causes the network device to execute the information sending method described in the embodiment of the second aspect.

[0278] An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a network device to execute the information sending method described in the embodiment of the second aspect.

[0279] The above devices and methods of the present application can be implemented by hardware, or by hardware combined with software. The present application relates to such a computer-readable program, which, when executed by a logic component, enables the logic component to implement the above-mentioned devices or components, or enables the logic component to implement the various methods or steps described above. The present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0280] The method / device described in conjunction with the embodiments of the present application may be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams shown in the figure and / or one or more combinations of the functional block diagrams may correspond to various software modules of the computer program flow or to various hardware modules. These software modules may correspond to the various steps shown in the figure, respectively. These hardware modules may be implemented by solidifying these software modules, for example, using a field programmable gate array (FPGA).

[0281] The software module may be located in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. A storage medium may be coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be an integral part of the processor. The processor and the storage medium may be located in an ASIC. The software module may be stored in a memory of a mobile terminal or in a memory card that can be inserted into the mobile terminal. For example, if a device (such as a mobile terminal) uses a large-capacity MEGA-SIM card or a large-capacity flash memory device, the software module may be stored in the MEGA-SIM card or the large-capacity flash memory device.

[0282] For one or more of the functional blocks described in the drawings and / or one or more combinations of functional blocks, it can be implemented as a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component or any appropriate combination thereof for performing the functions described in the present application. For one or more of the functional blocks described in the drawings and / or one or more combinations of functional blocks, it can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.

[0283] The present application is described above in conjunction with specific implementation methods, but it should be clear to those skilled in the art that these descriptions are exemplary and are not intended to limit the scope of protection of the present application. Those skilled in the art can make various modifications and variations to the present application based on the spirit and principles of the present application, and these modifications and variations are also within the scope of the present application.

[0284] Regarding the implementation methods including the above embodiments, the following additional notes are also disclosed:

[0285] 1. A cell selection or reselection method, applied to a terminal device, the method comprising:

[0286] The terminal device obtains cell information;

[0287] The terminal device determines, based on the cell information, whether the first cell and / or the frequency where the first cell is located are candidate cells and / or candidate frequencies in a cell selection and / or cell reselection process of a terminal device with reduced capabilities.

[0288] 2. A method according to Note 1, wherein the cell information includes first indication information or does not include first indication information, the first indication information being used to indicate that the first cell and / or the frequency where the first cell is located is in a prohibited state or a non-reserved state for a terminal device with reduced capabilities, or the first indication information being used to indicate that the first cell and / or the frequency where the first cell is located is in a supported or reserved state for a terminal device with reduced capabilities.

[0289] 3. The method according to Note 2, wherein the step of the terminal device determining, based on the cell information, whether the first cell and / or the frequency of the first cell is a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process of a terminal device with reduced capability comprises:

[0290] When the cell information includes the first indication information, and the first indication information indicates that the first cell and / or the frequency where the first cell is located is in a prohibited or non-reserved state for the terminal device with reduced capabilities, determining that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process of the terminal device with reduced capabilities;

[0291] and / or,

[0292] When the cell information includes the first indication information, and the first indication information indicates that the first cell and / or the frequency where the first cell is located is in a non-prohibited, supported or reserved state for the terminal device with reduced capabilities, it is determined that the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities.

[0293] 4. The method according to Note 2, wherein the step of the terminal device determining, based on the cell information, whether the first cell and / or the frequency of the first cell is a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process of a terminal device with reduced capability comprises:

[0294] When the cell information includes the first indication information, and the first indication information indicates that the first cell and / or the frequency where the first cell is located is in a prohibited or non-reserved state for the terminal device with reduced capabilities, determining that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process for the terminal device with reduced capabilities; when the cell information does not include the first indication information, determining that the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process for the terminal device with reduced capabilities;

[0295] or,

[0296] When the cell information includes the first indication information, and the first indication information indicates that the first cell and / or the frequency where the first cell is located is in a non-prohibited, supported or reserved state for the terminal device with reduced capabilities, it is determined that the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities; when the cell information does not include the first indication information, it is determined that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities.

[0297] 5. The method according to Note 4, wherein, when the cell information does not include the first indication information, determining that the first cell and / or the frequency of the first cell is a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process of a terminal device with reduced capability includes:

[0298] When the cell information does not include the first indication information, it is determined that the first cell and / or the frequency where the first cell is located is in a non-prohibited state for the terminal device with reduced capabilities, and the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities.

[0299] 6. The method according to Note 4, wherein, when the cell information does not include the first indication information, determining that the first cell and / or the frequency of the first cell is not a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process of a terminal device with reduced capability includes:

[0300] When the cell information does not include the first indication information, it is determined that the first cell and / or the frequency where the first cell is located is prohibited or non-reserved for the terminal device with reduced capabilities, and it is determined that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities.

[0301] 7. The method according to Note 1, wherein the cell information includes or does not include relevant information of a terminal device with reduced capabilities, wherein the step of the terminal device determining, according to the cell information, whether the first cell and / or the frequency at which the first cell is located is a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process of a terminal device with reduced capabilities comprises:

[0302] When the cell information includes the relevant information, it is determined that the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities; when the cell information does not include the relevant information, it is determined that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities.

[0303] 8. A method according to Note 7, wherein the relevant information includes access resource information of the terminal device with reduced capabilities, system information related to the terminal device with reduced capabilities, relevant PLMN information indicating the terminal device with reduced capabilities, search space or control resource set information of the terminal device with reduced capabilities, and at least one of bandwidth information of the terminal device with reduced capabilities.

[0304] 9. A method according to any one of Notes 1 to 8, wherein the first cell is the second cell corresponding to the cell information and / or other cells except the second cell, and the frequency where the first cell is located is the first frequency where the second cell is located and / or other frequencies except the first frequency.

[0305] 10. The method according to Note 9, wherein the other cells include at least one other cell, and the other frequencies include at least one other frequency.

[0306] 11. The method according to any one of Notes 1 to 10, wherein the cell information further includes at least one of second indication information, third indication information, fourth indication information, and fifth indication information, wherein the second indication information indicates whether the first cell and / or the frequency where the first cell is located is in a prohibited state;

[0307] The third indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for use by the operator;

[0308] The fourth indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for other uses;

[0309] The fifth indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for future use.

[0310] 12. A method according to any one of Notes 1 to 11, wherein the terminal device is a terminal device with reduced capabilities.

[0311] 13. A method according to Note 3 or 4, wherein, when the second indication information indicates that the first cell and / or the frequency where the first cell is located is not in a prohibited state, and the terminal device with reduced capabilities determines that the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities.

[0312] 14. A method according to Note 1, wherein the cell information includes at least one of a minimum receive power, a minimum quality level, an offset, and a maximum transmit power configured for a terminal device with reduced capabilities.

[0313] 15. The method according to Note 14, wherein the process of the terminal device performing cell selection and / or cell reselection according to the cell information further comprises:

[0314] A parameter value indicating cell quality is calculated according to the cell information, and when the parameter value does not meet a predetermined condition, it is determined that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or a candidate frequency.

[0315] 16. According to the method described in Note 11, the step of determining, by the terminal device, whether the first cell and / or the frequency of the first cell is a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process of a terminal device with reduced capability according to the cell information comprises:

[0316] The terminal device determines whether the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capability based on at least one of the second indication information, the third indication information, the fourth indication information and the fifth indication information.

[0317] 17. The method according to Note 11, wherein the terminal device with reduced capabilities ignores the second indication information, the third indication information, the fourth indication information and the fifth indication information.

[0318] 18. The method according to Note 1, wherein the cell information is carried by system information or a random access response message or a wireless resource control rejection message.

[0319] 19. A method according to any one of Notes 1 to 18, wherein the cell information corresponds to a type or usage scenario of a terminal device with reduced capabilities.

[0320] 20. A method according to Note 19, wherein the cell information corresponding to the type or usage scenario of at least one terminal device with reduced capabilities is the same or different.

[0321] 21. A method according to any one of Notes 1 to 18, wherein the cell information is PLMN-common or PLMN-specific.

[0322] 22. The method according to any one of Notes 1 to 21, wherein the method further comprises:

[0323] The terminal device searches for at least two third cells with the strongest signals, or determines a fourth cell with an RSRP higher than a threshold;

[0324] Furthermore, the terminal device obtains the cell information sent by the third cell and / or the fourth cell.

[0325] 23. A method for sending information, applied to a network device, the method comprising:

[0326] The network device generates cell information; the cell information is used by the terminal device to determine whether the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process of the terminal device with reduced capability;

[0327] The network device sends the cell information.

[0328] 24. A method according to Note 23, wherein the cell information includes first indication information or does not include first indication information, the first indication information being used to indicate that the first cell and / or the frequency where the first cell is located is in a prohibited or non-reserved state for a terminal device with reduced capabilities, or the first indication information being used to indicate that the first cell and / or the frequency where the first cell is located is in a non-prohibited or supported or reserved state for a terminal device with reduced capabilities.

[0329] 25. A method according to Note 23, wherein the cell information includes or does not include relevant information of the terminal device with reduced capabilities, the relevant information including access resource information of the terminal device with reduced capabilities, system information related to the terminal device with reduced capabilities, relevant PLMN information indicating the terminal device with reduced capabilities, at least one of the search space or control resource set information of the terminal device with reduced capabilities, and / or the cell information includes at least one of the minimum receiving power, minimum quality level, offset, and maximum transmitting power configured for the terminal device with reduced capabilities.

[0330] 26. A method according to any one of Notes 23 to 25, wherein the first cell is the second cell corresponding to the cell information and / or other cells except the second cell, and the frequency where the first cell is located is the first frequency where the second cell is located and / or other frequencies except the first frequency.

[0331] 27. The method according to Note 26, wherein the other cells include at least one other cell, and the other frequencies include at least one other frequency.

[0332] 28. A method according to any one of Notes 23 to 27, wherein the cell information is carried by system information or a random access response message or a wireless resource control rejection message.

[0333] 29. A method according to any one of Notes 23 to 27, wherein the network device generates the information corresponding to the type or usage scenario of the terminal device with reduced capabilities based on the type or usage scenario of the terminal device with reduced capabilities.

[0334] 30. A method according to Note 29, wherein the cell information corresponding to the type or usage scenario of at least one terminal device with reduced capabilities is the same or different.

[0335] 31. A method according to any one of Notes 23 to 27, wherein the cell information is PLMN-common or PLMN-specific.

[0336] 32. A method for sending information, applied to a network device, the method comprising:

[0337] The network device sends cell information; the cell information is used to determine whether the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities.

[0338] 33. A cell selection or reselection method, applied to a terminal device with reduced capabilities, the method comprising:

[0339] The terminal device acquires cell information; the cell information includes at least one of second indication information, third indication information, fourth indication information, and fifth indication information, and the second indication information indicates whether the first cell and / or the frequency where the first cell is located is in a prohibited state;

[0340] The third indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for use by the operator;

[0341] The fourth indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for other uses;

[0342] The fifth indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for future use;

[0343] The terminal device ignores the cell information to perform a process of cell selection and / or cell reselection.

[0344] 34. A cell selection or reselection method, applied to a first type of non-reduced capability terminal device, the method comprising:

[0345] The terminal device obtains cell information;

[0346] The terminal device determines, according to the cell information, whether the first cell and / or the frequency where the first cell is located is in a reserved state for the terminal device with reduced capability;

[0347] When it is determined to be in the reserved state, the terminal device excludes the first cell and / or the frequency where the first cell is located from the candidate cells and / or candidate frequencies in the cell selection and / or cell reselection process;

[0348] The process of performing cell selection and / or cell reselection based on the exclusion results.

[0349] 35. A cell selection or reselection method, applied to a terminal device, the method comprising:

[0350] The terminal device acquires cell information, the cell information including at least one of a minimum receiving power, a minimum quality level, an offset, and a maximum transmitting power configured for the terminal device with reduced capability;

[0351] The terminal device performs a process of cell selection and / or cell reselection based on the cell information.

[0352] 36. A terminal device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the cell selection or reselection method as described in any one of Notes 1 to 22 and 33 to 35.

[0353] 37. A network device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the information sending method as described in any one of Notes 23 to 31.

[0354] 38. A cell selection or reselection device, applied to a terminal device, the device comprising:

[0355] An acquisition unit, used for acquiring cell information;

[0356] A determination unit is used to determine whether the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process of a terminal device with reduced capabilities according to the cell information.

[0357] 39. An apparatus according to Note 38, wherein the cell information includes first indication information or does not include first indication information, the first indication information being used to indicate that the first cell and / or the frequency where the first cell is located is in a prohibited state or a non-reserved state for a terminal device with reduced capabilities, or the first indication information being used to indicate that the first cell and / or the frequency where the first cell is located is in a supported or reserved state for a terminal device with reduced capabilities.

[0358] 40. The apparatus according to Note 39, wherein the determining unit comprises:

[0359] A first determination module, configured to determine that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process of the terminal device with reduced capability, when the cell information includes the first indication information and the first indication information indicates that the first cell and / or the frequency where the first cell is located is in a prohibited or non-reserved state for the terminal device with reduced capability;

[0360] and / or,

[0361] A second determination module is used to determine that the first cell and / or the frequency where the first cell is located are candidate cells and / or candidate frequencies in the cell selection and / or cell reselection process of the terminal device with reduced capabilities when the cell information includes the first indication information and the first indication information indicates that the first cell and / or the frequency where the first cell is located is in a non-prohibited, supported or reserved state for the terminal device with reduced capabilities.

[0362] 41. The apparatus according to Note 39, wherein the determining unit comprises:

[0363] A third determination module, which is used to determine that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process of a terminal device with reduced capabilities when the cell information includes the first indication information and the first indication information indicates that the first cell and / or the frequency where the first cell is located is a prohibited or non-reserved state for the terminal device with reduced capabilities; and when the cell information does not include the first indication information, determine that the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in a cell selection and / or cell reselection process of a terminal device with reduced capabilities;

[0364] or,

[0365] A fourth determination module is used to determine that the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities when the cell information includes the first indication information and the first indication information indicates that the first cell and / or the frequency where the first cell is located is in a non-prohibited, supported or reserved state for the terminal device with reduced capabilities; and to determine that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities when the cell information does not include the first indication information.

[0366] 42. The apparatus according to Note 41, wherein the third determination module determines that the first cell and / or the frequency where the first cell is located is a non-prohibited state for the terminal device with reduced capabilities when the cell information does not include the first indication information, and the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities; or,

[0367] When the cell information does not include the first indication information, the fourth determination module determines that the first cell and / or the frequency where the first cell is located is prohibited or non-reserved for the terminal device with reduced capabilities, and determines that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of the terminal device with reduced capabilities.

[0368] 43. The apparatus according to Note 38, wherein the cell information includes or does not include relevant information of a terminal device with reduced capabilities, wherein the determining unit includes:

[0369] A fifth determination module is used to determine that the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the process of cell selection and / or cell reselection of a terminal device with reduced capabilities when the cell information includes the relevant information; and to determine that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or candidate frequency in the process of cell selection and / or cell reselection of a terminal device with reduced capabilities when the cell information does not include the relevant information.

[0370] 44. An apparatus according to Note 43, wherein the relevant information includes access resource information of the terminal device with reduced capabilities, system information related to the terminal device with reduced capabilities, relevant PLMN information indicating the terminal device with reduced capabilities, search space or control resource set information of the terminal device with reduced capabilities, and at least one of bandwidth information of the terminal device with reduced capabilities.

[0371] 45. An apparatus according to any one of Notes 38 to 44, wherein the first cell is the second cell corresponding to the cell information and / or other cells except the second cell, and the frequency where the first cell is located is the first frequency where the second cell is located and / or other frequencies except the first frequency.

[0372] 46. ​​The apparatus according to Note 45, wherein the other cells include at least one other cell, and the other frequencies include at least one other frequency.

[0373] 47. The device according to any one of Notes 38 to 46, wherein the cell information further includes at least one of second indication information, third indication information, fourth indication information, and fifth indication information, and the second indication information indicates whether the first cell and / or the frequency where the first cell is located is in a prohibited state;

[0374] The third indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for use by the operator;

[0375] The fourth indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for other uses;

[0376] The fifth indication information indicates whether the first cell and / or the frequency where the first cell is located is reserved for future use.

[0377] 48. An apparatus according to any one of Notes 38 to 47, wherein the terminal device is a terminal device with reduced capabilities.

[0378] 49. An apparatus according to Note 47, wherein the determination unit determines that the first cell and / or the frequency where the first cell is located are candidate cells and / or candidate frequencies in the cell selection and / or cell reselection process of the terminal device with reduced capabilities when the second indication information indicates that the first cell and / or the frequency where the first cell is located is not in a prohibited state and it is determined that the first cell and / or the frequency where the first cell is located is in a reserved state for the terminal device with reduced capabilities.

[0379] 50. An apparatus according to Note 38, wherein the cell information includes at least one of a minimum receive power, a minimum quality level, an offset, and a maximum transmit power configured for a terminal device with reduced capabilities.

[0380] 51. The apparatus according to Note 50, wherein the determining unit further comprises:

[0381] A calculation module, configured to calculate a parameter value representing cell quality according to the cell information;

[0382] A sixth determination module is configured to determine, when the parameter value does not satisfy a predetermined condition, that the first cell and / or the frequency where the first cell is located is not a candidate cell and / or a candidate frequency.

[0383] 52. According to the device of Note 38, the determining unit comprises:

[0384] A seventh determination module is used to determine whether the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the cell selection and / or cell reselection process of a terminal device with reduced capability based on at least one of the second indication information, the third indication information, the fourth indication information and the fifth indication information.

[0385] 53. An apparatus according to Note 47, wherein the determination unit is further used to ignore the second indication information, the third indication information, the fourth indication information and the fifth indication information.

[0386] 54. An apparatus according to any one of Notes 38 to 53, wherein the cell information is carried by system information or a random access response message or a wireless resource control rejection message.

[0387] 55. An apparatus according to any one of Notes 38 to 54, wherein the cell information corresponds to a type or usage scenario of a terminal device with reduced capabilities; and / or the cell information is PLMN-common or PLMN-specific.

[0388] 56. The device according to any one of Notes 38 to 55, wherein the device further comprises:

[0389] A searching unit, configured to search for at least two third cells with the strongest signals, or determine a fourth cell with an RSRP higher than a threshold;

[0390] Furthermore, the acquiring unit acquires the cell information sent by the third cell and / or the fourth cell.

[0391] 57. An information sending device, applied to a network device, comprising:

[0392] A generating unit, which is used to generate cell information; the cell information is used by the terminal device to determine whether the first cell and / or the frequency where the first cell is located is a candidate cell and / or candidate frequency in the process of cell selection and / or cell reselection of the terminal device with reduced capability;

[0393] A sending unit is used to send the cell information.

Claims

1. A cell selection or reselection device, applied to a terminal device, the device comprising: A receiver, configured to receive cell information from a first cell, wherein the cell information includes first indication information and second indication information, the first indication information being used to indicate whether the first cell is in a prohibited state for a terminal device with reduced capability, and the second indication information being used to indicate whether the first cell is in a prohibited state; a processor, configured to determine, according to the first indication information and the second indication information, whether the first cell is a candidate cell in a cell selection and / or cell reselection process of a terminal device with reduced capability, When the second indication information indicates that the first cell is in a prohibited state or the first indication information indicates that the first cell is in a prohibited state, it is determined that the first cell is not a candidate cell in the cell selection and / or cell reselection process of a terminal device with reduced capabilities within 300 seconds.

2. The device according to claim 1, wherein: The cell information includes a first intra-frequency reselection parameter (intraFreqReselection) for a terminal device with reduced capabilities.

3. The device according to claim 1, wherein: The receiver is further configured to receive information on whether the second frequency supports access by terminal devices with reduced capabilities.

4. The device according to claim 1, wherein: The cell information includes or does not include relevant information of the terminal device with reduced capabilities, wherein the processor is further used to determine that the first cell is a candidate cell in the cell selection and / or cell reselection process of the terminal device with reduced capabilities when the cell information includes the relevant information; and determine that the first cell is not a candidate cell in the cell selection and / or cell reselection process of the terminal device with reduced capabilities when the cell information does not include the relevant information.

5. The device according to claim 4, wherein: The relevant information includes access resource information of the terminal device with reduced capabilities, system information related to the terminal device with reduced capabilities, relevant PLMN information indicating the terminal device with reduced capabilities, search space or control resource set information of the terminal device with reduced capabilities, and at least one of bandwidth information of the terminal device with reduced capabilities.

6. The device according to claim 1, wherein: The first cell is the second cell corresponding to the cell information and / or other cells except the second cell.

7. The device according to claim 6, wherein: The other cells include at least one other cell.

8. The device according to claim 1, wherein: The terminal device is a reduced capability terminal device.

9. The device according to claim 1, wherein: The cell information includes at least one of a minimum receive power, a minimum quality level, an offset, and a maximum transmit power configured for a terminal device with reduced capabilities.

10. The device according to claim 9, wherein: The processor is further configured to: Calculating a parameter value representing cell quality; When the parameter value does not satisfy a predetermined condition, it is determined that the first cell is not a candidate cell.

11. The device according to claim 1, wherein: The receiver is further configured to receive system information including the cell information, a random access response message including the cell information, or a radio resource control rejection message bearer including the cell information.

12. The device according to claim 1, wherein: The cell information corresponds to a type or usage scenario of a terminal device with reduced capabilities; and / or the cell information is PLMN-common or PLMN-specific.

13. The device according to claim 1, wherein: The processor is further configured to: Control the search for at least two third cells with the strongest signals, or determine a fourth cell with an RSRP higher than a threshold; Furthermore, the receiver receives the cell information sent by the third cell and / or the fourth cell.

14. An information sending device, applied to a network device, comprising: A processor, configured to generate cell information, wherein the cell information includes first indication information and second indication information, wherein the first indication information is used to indicate whether the first cell is in a prohibited state for a terminal device with reduced capabilities, and the second indication information indicates whether the first cell is in a prohibited state; the first indication information and the second indication information are used by a terminal device to determine whether the first cell is a candidate cell in a cell selection and / or cell reselection process for a terminal device with reduced capabilities, wherein when the second indication information indicates that the first cell is in a prohibited state or when the first indication information indicates that the first cell is in a prohibited state, the first cell is not a candidate cell in a cell selection and / or cell reselection process for a terminal device with reduced capabilities within 300 seconds; A sending unit is used to send the cell information.

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