Access control method and apparatus, communication device, and storage medium

Abstract

Embodiments of the present application disclose an access control method and apparatus, a communication device, and a storage medium. The method comprises: a terminal records or saves first information, and sends the first information to a network device, wherein the first information is related information of a reduced-capability terminal for cell access control.

Description

Access control method, device, communication equipment and storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202410131068.7 and application date of January 30, 2024, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated into this application by introduction. Technical Field

[0003] The present application relates to the field of communication technology, and in particular to an access control method, apparatus, communication equipment, and storage medium. Background Art

[0004] Under normal circumstances, the network may prohibit the access of all Reduced Capability (RedCap) terminals or certain types of RedCap terminals (such as 1Rx or 2Rx RedCap terminals) based on factors such as network capacity and coverage. This can be considered a normal access prohibition state. However, supporting RedCap terminals requires network upgrades and corresponding parameter configuration adjustments. If the access of RedCap terminals is mistakenly prohibited due to delayed network upgrades or parameter configuration issues, especially in the early stages of RedCap commercialization, it may cause significant user experience issues for RedCap terminals. Summary of the Invention

[0005] Embodiments of the present application provide an access control method, apparatus, communication device, and storage medium.

[0006] The technical solution of the embodiment of the present application is implemented as follows:

[0007] In a first aspect, an embodiment of the present application provides an access control method, the method comprising: a terminal recording or saving first information, and sending the first information to a network device; the first information is relevant information for simplifying access control of a terminal cell with a simplified capability.

[0008] In some optional embodiments of the present application, the first information includes at least one of the following:

[0009] The first identifier indicating whether the terminal is a reduced capability terminal or a traditional terminal;

[0010] A second identifier indicating a simplified capability terminal type or application scenario;

[0011] The number of receiving antennas supported by the terminal;

[0012] a cell identifier, where the cell identifier is an identifier of a cell to which all simplified capability terminals or simplified capability terminals with a specific number of receiving antennas are not allowed to access;

[0013] The measured value of the cell downlink channel quality;

[0014] Synchronization Signal / PBCH Block (SSB) index;

[0015] Cell bar indication and / or Intra-Frequency Reselection Identifier (IFRI) indication in the Master Information Block (MIB);

[0016] Cell bar indication and / or Intra-Frequency Reselection Identifier (IFRI) indication in the System Information Block (SIB);

[0017] Types of simplified capability terminals that are prohibited from accessing the cell;

[0018] Intra-frequency reselection identifier (IFRI) indication;

[0019] Terminal location information;

[0020] Terminal capability information.

[0021] In some optional embodiments of the present application, the terminal records or saves the first information, including: the terminal records or saves the first information when detecting that a measurement event is satisfied; or, the terminal records or saves the first information based on a configuration or instruction of a network device; or, the terminal actively records or saves the first information.

[0022] In some optional embodiments of the present application, the measurement event includes at least: the measured cell signal strength and / or quality is greater than or equal to a first threshold and the cell prohibits terminal access; and / or,

[0023] The configuration or instruction of the network device at least includes: the terminal is in an idle state and / or an inactive state, and it is detected during the initial access and / or cell reselection that the cell prohibits the terminal from accessing.

[0024] In some optional embodiments of the present application, the method further includes: the terminal receiving second information sent by the network device, where the second information includes at least one of the following:

[0025] said measurement event;

[0026] first configuration information or first instruction information for configuring or instructing recording or saving of the first information;

[0027] third information configured for a terminal in an initial access state, the third information including one or more of second configuration information, second indication information, and a first trigger condition for configuring or instructing recording or saving the first information;

[0028] The fourth information is reconfigured for the terminal in the connected state, and the fourth information includes one or more of the third configuration information, third indication information and second trigger condition for reconfiguring or instructing to update the record or save the first information.

[0029] In some optional embodiments of the present application, sending the first information to the network device includes: the terminal receiving a first request sent by the network device, and sending the first information to the network device based on the first request; the first request is used to request the terminal to send the first information; or, the terminal actively sends the first information to the network device.

[0030] In some optional embodiments of the present application, the method further includes: the terminal sending fifth information to the network device, where the fifth information is used to notify the network device that the terminal has recorded or saved the first information.

[0031] In some optional embodiments of the present application, the terminal records or saves the first information and sends the first information to the network device, including: the terminal records or saves the first information within a time period based on the configuration or instruction of the network device, and sends the first information to the network device according to a sending strategy within the time period; the sending strategy includes periodic sending, one-time sending, or sending when an event trigger condition is met.

[0032] In the second aspect, an embodiment of the present application also provides an access control method, which includes: a network device receives first information sent by a terminal, the first information including relevant information about access control of a cell of a simplified capability terminal; the network device determines whether to adjust or not to adjust the access control parameters of the cell for the simplified capability terminal based at least on the first information.

[0033] In some optional embodiments of the present application, the first information includes at least one of the following:

[0034] The first identifier indicating whether the terminal is a reduced capability terminal or a traditional terminal;

[0035] A second identifier indicating a simplified capability terminal type or application scenario;

[0036] The number of receiving antennas supported by the terminal;

[0037] a cell identifier, where the cell identifier is an identifier of a cell to which all simplified capability terminals or simplified capability terminals with a specific number of receiving antennas are not allowed to access;

[0038] The measured value of the cell downlink channel quality;

[0039] Synchronization signal and physical broadcast channel block (SSB) index;

[0040] Cell barring (cellbar) indication and / or intra-frequency reselection identifier (IFRI) indication in the master information block (MIB);

[0041] Cell barring indication and / or intra-frequency reselection identifier (IFRI) indication in the system information block (SIB);

[0042] Types of simplified capability terminals that are prohibited from accessing the cell;

[0043] Intra-frequency reselection identifier (IFRI) indication;

[0044] Terminal location information;

[0045] Terminal capability information.

[0046] In some optional embodiments of the present application, before the network device receives the first information sent by the terminal, the method further includes: the network device sending second information to the terminal, where the second information includes at least one of the following:

[0047] Measuring events;

[0048] first configuration information or first instruction information for configuring or instructing recording or saving of the first information;

[0049] third information configured for a terminal in an initial access state, the third information including one or more of second configuration information, second indication information, and a first trigger condition for configuring or instructing recording or saving the first information;

[0050] The fourth information is reconfigured for the terminal in the connected state, and the fourth information includes one or more of the third configuration information, third indication information and second trigger condition for reconfiguring or instructing to update the record or save the first information.

[0051] In some optional embodiments of the present application, before the network device receives the first information sent by the terminal, the method further includes: the network device sending a first request to the terminal, where the first request is used to request the terminal to send the first information.

[0052] In some optional embodiments of the present application, before the network device sends the first request to the terminal, the method further includes: the network device receives fifth information sent by the terminal, and the fifth information is used to notify the network device that the terminal has recorded or saved the first information.

[0053] In some optional embodiments of the present application, the network device determines whether to adjust or not to adjust the access control parameters of the cell for the simplified capability terminal based at least on the first information, including: the network device determines whether to adjust or not to adjust the access control parameters of the cell for the simplified capability terminal based on the first information and the cell access situation.

[0054] In some optional embodiments of the present application, the network device determines whether to adjust or not to adjust the access control parameters of the cell for simplified capability terminals based on the first information and the cell access situation, including: when the cell load is higher than the second threshold and the number of traditional terminal connections is greater than the third threshold, the network device determines not to adjust the access control parameters of the cell for all simplified capability terminals or simplified capability terminals of a specified type; when the cell load is lower than the fourth threshold and resources are not limited, the network device determines to adjust the access control parameters of the cell for all simplified capability terminals or simplified capability terminals of a specified type, so that all simplified capability terminals or simplified capability terminals of a specified type can access the cell.

[0055] In some optional embodiments of the present application, the method further includes: the network device determining whether to expand the cell or not based on at least the first information.

[0056] In some optional embodiments of the present application, the network device determines whether to expand the cell or not based at least on the first information, including: when the cell load is higher than a second threshold and the number of traditional terminal connections is greater than a third threshold, and the number of first information about the cell received by the network device is greater than a fifth threshold, the network device determines whether to expand the cell or not based at least on the first information.

[0057] In a third aspect, an embodiment of the present application further provides an access control device, which is applied to a terminal and includes: a first processing unit and a first communication unit; wherein,

[0058] The first processing unit is configured to record or save first information; the first information is related information of simplified capability terminal cell access control;

[0059] The first communication unit is configured to send the first information to the network device.

[0060] In a fourth aspect, an embodiment of the present application further provides an access control device, which is applied to a network device and includes: a second communication unit and a second processing unit; wherein,

[0061] The second communication unit is configured to receive first information sent by the terminal, where the first information includes information related to simplified capability terminal cell access control;

[0062] The second processing unit is configured to determine whether to adjust or not to adjust an access control parameter of a cell for a reduced capability terminal based at least on the first information.

[0063] In a fifth aspect, an embodiment of the present application further provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the steps of the access control method described in the first or second aspect of the embodiment of the present application are implemented.

[0064] In a sixth aspect, an embodiment of the present application further provides a communication device, comprising a memory, a processor, and a computer program stored on the memory and runnable on the processor, wherein when the processor executes the program, the steps of the access control method described in the first or second aspect of the embodiment of the present application are implemented.

[0065] In a seventh aspect, an embodiment of the present application further provides a computer program product, comprising computer program instructions, which enable a computer to execute the steps of the access control method described in the first or second aspect of the embodiment of the present application.

[0066] The access control method, apparatus, communication equipment and storage medium provided in the embodiments of the present application include: the terminal records or saves first information and sends the first information to the network device; the first information is relevant information about the access control of the cell of the simplified capability terminal; the network device determines whether to adjust or not to adjust the access control parameters of the cell for the simplified capability terminal based at least on the first information. By adopting the technical solution of the embodiments of the present application, the simplified capability terminal records or saves relevant information about the access control of the cell, reports the information to the network device, and provides auxiliary information to the network device, which helps the network device to discover that the access control configuration for the simplified capability terminal is incorrect and optimize the access control mechanism in time; in addition, by reporting the information, the network device can also discover the access needs of the simplified capability terminal, providing a basis for subsequent network expansion or optimization of random access resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] FIG1 is a flow chart of an access control method according to an embodiment of the present application;

[0068] FIG2 is a second flow chart of the access control method according to an embodiment of the present application;

[0069] FIG3 is a schematic diagram of the first structure of the access control device according to an embodiment of the present application;

[0070] FIG4 is a second schematic diagram of the structure of the access control device according to an embodiment of the present application;

[0071] FIG5 is a schematic diagram of the hardware composition structure of the communication device according to an embodiment of the present application. DETAILED DESCRIPTION

[0072] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0073] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile Communication (GSM) system, Long Term Evolution (LTE) system or 5G system. Optionally, the 5G system or 5G network can also be referred to as a New Radio (NR) system or NR network.

[0074] Exemplarily, the communication system applied in the embodiments of the present application may include a network device and a terminal device (also referred to as a terminal, a communication terminal, etc.); the network device may be a device that communicates with the terminal device. Among them, the network device can provide communication coverage within a certain area and can communicate with terminals located in the area. Optionally, the network device can be a base station in each communication system, such as an evolved base station (eNB, Evolutional Node B) in an LTE system, or a base station (gNB) in a 5G system or an NR system.

[0075] It should be understood that in the embodiments of the present application, devices having communication functions in the network / system may be referred to as communication devices. Communication devices may include network devices and terminals having communication functions. The network devices and terminal devices may be the specific devices described above and will not be described in detail here. Communication devices may also include other devices in the communication system, such as network controllers, mobility management entities, and other network entities, which are not limited in the embodiments of the present application.

[0076] It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and / or" is simply a description of an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " generally indicates that the related objects are in an "or" relationship.

[0077] The terms "first", "second" etc. in the specification and claims of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable in appropriate circumstances, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "comprise" and "have" and any of their variations are intended to cover non-exclusive inclusions, for example, the process, method, system, product or equipment comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or that are inherent to these processes, methods, products or equipment.

[0078] Before describing the technical solution of the embodiment of the present application in detail, a brief description of the relevant situation of the RedCap terminal is first given.

[0079] An important goal of the 5G NR system is to achieve the Internet of Everything, using 5G network connections to improve productivity and efficiency in industrial scenarios, reduce maintenance costs, and improve operational safety. However, for high-key performance indicator (KPI) services such as enhanced mobile broadband (eMBB) scenarios, traditional terminals are expensive. To fill the gap in mid- and low-end IoT devices, the NR system introduces simplified capability terminals (RedCap). RedCap terminals are mainly aimed at three application scenarios: industrial wireless sensors, video surveillance, and wearables. They simplify many communication capabilities of the terminal, such as maximum bandwidth, number of receiving antennas, maximum number of downlink multiple-input multiple-output (MIMO) layers, maximum modulation order, etc., thereby reducing terminal costs. For example, the communication capabilities of the NR RedCap terminal can be shown in Table 1.

[0080] Table 1

[0081] Due to the reduction in terminal capabilities, there are significant differences in performance between RedCap terminals and traditional NR terminals. For example, the reduction in the number of receiving antennas will affect the coverage range of the RedCap terminal, and the reduction in the number of receiving antennas, maximum bandwidth and modulation order will affect the transmission rate of the RedCap terminal.

[0082] To prevent RedCap terminals from impacting other NR terminals and network capacity, the NR system introduces an access control mechanism for RedCap terminals, which allows for flexible control of whether RedCap terminals can access the NR network.

[0083] Access control mechanism based on the Master Information Block (MIB): The cell bar in the MIB indicates that the access denied status applies to all users (traditional NR terminals and RedCap terminals), and the IFRI (intraFreqReselection) further indicates whether intraFreq neighbor cell reselection is allowed.

[0084] Access control mechanism based on system information block (SIB): The cell bar indication in SIB1 is introduced specifically for RedCap terminals. Since RedCap terminals also support a maximum of 1 and a maximum of 2 receiving antennas respectively, and different receiving antennas have different transmission efficiency and coverage, SIB1 also defines a separate cell bar information field for RedCap terminals with different numbers of receiving antennas. If the cell bar indication in the MIB is notbar (accessible), the RedCap terminal needs to continue to obtain SIB1 and determine whether it is prohibited based on the cell bar indication in SIB1. If it is prohibited, it is necessary to reselect according to the IFRI in SIB1. Among them, if IFRI does not exist, it means that the cell does not allow the RedCap terminal to access, and the RedCap terminal is allowed to perform synchronous reselection.

[0085] The present application provides an access control method. FIG1 is a flow chart of the access control method according to the present application. As shown in FIG1 , the method includes:

[0086] Step 101: The terminal records or saves first information and sends the first information to a network device; the first information is related information of simplified capability terminal cell access control.

[0087] In each embodiment of this application, the terminal is a simplified capability terminal. Compared to traditional terminals, these simplified capability terminals have simplified capabilities, such as maximum bandwidth, number of receive antennas, maximum number of downlink MIMO layers, and maximum modulation order, thereby reducing terminal costs. For example, the simplified capability terminal may be a RedCap terminal.

[0088] In this embodiment, the simplified capability terminal records or saves relevant information about cell access control and reports the information to the network device, providing auxiliary information for the network device, which helps the network device to discover errors in the access control configuration for the simplified capability terminal and timely optimize the access control mechanism; in addition, by reporting this information, the network device can also discover the access needs of the simplified capability terminal, providing a basis for subsequent network expansion or optimization of random access resources.

[0089] In some optional embodiments, the first information includes at least one of the following:

[0090] The first identifier indicating whether the terminal is a reduced capability terminal or a traditional terminal;

[0091] A second identifier indicating a simplified capability terminal type or application scenario;

[0092] The number of receiving antennas supported by the terminal;

[0093] a cell identifier, where the cell identifier is an identifier of a cell to which all simplified capability terminals or simplified capability terminals with a specific number of receiving antennas are not allowed to access;

[0094] The measured value of the cell downlink channel quality;

[0095] Synchronization signal and physical broadcast channel block (SSB) index;

[0096] Cell barring (cellbar) indication and / or intra-frequency reselection identifier (IFRI) indication in the master information block (MIB);

[0097] Cell barring indication and / or intra-frequency reselection identifier (IFRI) indication in the system information block (SIB);

[0098] Types of simplified capability terminals that are prohibited from accessing the cell;

[0099] Intra-frequency reselection identifier (IFRI) indication;

[0100] Terminal location information;

[0101] Terminal capability information.

[0102] In this embodiment, the first identifier is used to indicate whether the terminal is a reduced-capability terminal or a traditional terminal. For example, the first identifier can be represented by one bit. When the first identifier is set to 1 or true, it indicates that the terminal is a reduced-capability terminal; correspondingly, when the first identifier is set to 0 or false, it indicates that the terminal is a traditional terminal.

[0103] In this embodiment, the second identifier is used to represent the simplified capability terminal type or application scenario. Here, different application scenarios may correspond to different simplified capability terminals. In other words, the simplified capability terminal type and the application scenario may correspond. Exemplarily, the second identifier may be represented by 3 bits, or a bitmap may be used to represent the second identifier. Taking the second identifier represented by 3 bits as an example, for example, when the second identifier is set to 000, it indicates that the simplified capability terminal type is an industrial wireless sensor; when the second identifier is set to 001, it indicates that the simplified capability terminal type is a video surveillance device; when the second identifier is set to 010, it indicates that the simplified capability terminal type is a wearable device. Other simplified capability terminal types or application scenarios may also be shown in the above examples.

[0104] In this embodiment, the number of receive antennas refers to the number of receive antennas supported by the terminal (reduced capability terminal). For example, the number of receive antennas can be represented by a single bit, with this bit set to 1 or 0 to correspond to 1Rx or 2Rx, respectively. In other optional embodiments, the number of receive antennas can also be represented by a bitmap.

[0105] In this embodiment, the cell identifier is a cell identifier that does not allow all simplified capability terminals or simplified capability terminals with a specific number of receiving antennas to access. Exemplarily, when the terminal discovers or detects that the cell does not allow all simplified capability terminals or simplified capability terminals with a specific number of receiving antennas to access, the cell identifier (cell ID) may be recorded or stored through the first information.

[0106] In this embodiment, the cell downlink channel quality measurement value refers to the downlink channel quality measured by the terminal under the condition of the number of receiving antennas supported by the terminal, and can be represented by any indicator value that identifies the channel quality. Exemplarily, the cell downlink channel quality measurement value can be represented by Reference Signal Received Power (RSRP) and / or Reference Signal Received Quality (RSRQ).

[0107] In this embodiment, the SSB index refers to the SSB index (SSB index) measured by the terminal.

[0108] In this embodiment, the cell bar indication in the MIB is used to indicate an access rejection state; the intra-frequency reselection identifier (IFRI) indication in the MIB is used to indicate whether intra-frequency neighbor cell reselection is allowed.

[0109] In this embodiment, the cell barring (cellbar) indication in the SIB is specifically for the simplified capability terminal (or RedCap terminal), and specifically can be the (cellbar) indication and / or the same-frequency reselection identifier (IFRI) indication corresponding to the simplified capability terminal with different numbers of receiving antennas of the cell; wherein, the cell barring (cellbar) indication is used to indicate the access rejection status; the same-frequency reselection identifier (IFRI) indication is used to indicate whether the same-frequency neighboring cell reselection is allowed.

[0110] Since simplified capability terminals (or RedCap terminals) support a maximum of 1 and a maximum of 2 receiving antennas respectively, and different receiving antennas have different transmission efficiency and coverage, the SIB (such as SIB1) also defines a cell bar information field for simplified capability terminals (or RedCap terminals) with different numbers of receiving antennas. If the cell bar indication in the MIB is notbar (indicating accessible), the simplified capability terminal (or RedCap terminal) needs to continue to obtain the SIB (such as SIB1) and determine whether it is prohibited from access based on the cell bar indication in the SIB (such as SIB1); if it is prohibited from access, it is necessary to perform neighbor cell reselection according to the IFRI indication in the SIB (such as SIB1). Among them, if the cell bar indication in the SIB (such as SIB1) is prohibited from access and there is no IFRI indication in the SIB, it means that the cell does not allow the simplified capability terminal (or RedCap terminal) to access, and the simplified capability terminal (or RedCap terminal) is allowed to reselect the neighbor cell.

[0111] In this embodiment, the types of simplified capability terminals that are prohibited from accessing the cell may be, for example, all simplified capability terminals (i.e., all types of RedCap terminals are prohibited from accessing), simplified capability terminals with a receiving antenna number of 1 (1Rx RedCap terminal), simplified capability terminals with a receiving antenna number of 2 (2Rx RedCap terminal), and the like.

[0112] In this embodiment, the intra-frequency reselection identifier (IFRI) indication is used to indicate whether the cell allows a reduced capability terminal (or RedCap terminal) to perform intra-frequency neighbor cell reselection, and the IFRI configuration in the MIB and / or SIB may be recorded.

[0113] In this embodiment, the location information of the terminal is specifically the geographical location information of the terminal. The geographical location information can be represented by longitude and latitude, or by a relative position with respect to a network device.

[0114] In this embodiment, the capability information of the terminal includes but is not limited to at least one of the following information of a simplified capability terminal (or RedCap terminal): maximum bandwidth, maximum modulation order, maximum number of MIMO layers, etc.

[0115] In this embodiment, the terminal (reduced capability terminal) can detect or discover one or more cells that prohibit the simplified capability terminal from accessing; the terminal then records or saves one or more of the detected first information, such as the cell identifier, the cell downlink channel quality measurement value, the SSB index, the cell barring (cellbar) indication and / or the same-frequency reselection identifier (IFRI) indication in the master information block (MIB), the cell barring (cellbar) indication and / or the same-frequency reselection identifier (IFRI) indication in the system information block (SIB), the same-frequency reselection identifier (IFRI) indication and other information, and the terminal's location information. In some optional embodiments, the above-mentioned first information can be recorded or saved in the form of a structure, with each cell corresponding to a structure, that is, each cell corresponds to a set of first information.

[0116] In some optional embodiments, the terminal records or saves the first information, including: the terminal records or saves the first information when a trigger condition is met; the trigger condition includes at least one of the following: the terminal is in an idle state and / or an inactive state, and performs an initial access and / or cell reselection process.

[0117] In this embodiment, the state of the terminal may specifically be a Radio Resource Control (RRC) state; the idle state specifically refers to an RRC idle state (RRC_IDLE), and the inactive state specifically refers to an RRC inactive state (RRC_INACTIVE).

[0118] In some optional embodiments of the present application, the terminal records or saves the first information, including: the terminal records or saves the first information when detecting that a measurement event is satisfied; or, the terminal records or saves the first information based on a configuration or instruction of a network device; or, the terminal actively records or saves the first information.

[0119] In some optional embodiments, the measurement event includes at least: the measured cell signal strength and / or quality is greater than or equal to a first threshold and the cell prohibits terminal access; and / or the configuration or indication of the network device includes at least: the terminal is in an idle state and / or an inactive state, and it is detected that the cell prohibits terminal access during initial access and / or cell reselection.

[0120] In this embodiment, as an implementation method, the terminal records or saves the first information, which may be triggered based on detecting that a measurement event is satisfied. Exemplarily, the measurement event may specifically be the terminal measuring the cell signal quality and / or strength under the condition of the number of receiving antennas supported by the terminal (such as 1Rx or 2Rx). When the cell signal quality and / or strength is greater than or equal to a first threshold and the cell prohibits access by simplified capability terminals, indicating that the signal quality of the cell is good, but access by simplified capability terminals is still prohibited, the terminal records or saves the first information.

[0121] In some optional embodiments, the measurement event and / or the first value may be implemented by the terminal itself. For example, the terminal may record or save the first information when detecting that a measurement event is satisfied based on its own logic. In other optional embodiments, the measurement event and / or the first value may be configured by a network device or implemented through a protocol definition.

[0122] As another embodiment, the terminal may also record or save the first information based on the configuration or instruction of the network device. Exemplarily, when the network device instructs the terminal to perform initial access and / or cell reselection and detects that the cell prohibits the terminal from accessing, the terminal records or saves the relevant information of the cell (i.e., records or saves the first information). Exemplarily, the network sends a 1-bit indication message. When the indication message is set to 1 or TRUE, it indicates that when the terminal performs initial access and / or cell reselection and detects that the cell prohibits the terminal from accessing, the terminal records or saves the first information.

[0123] As another implementation, the terminal may also actively record or save the first information. For example, the terminal may actively record or save the first information when detecting that the cell prohibits the terminal from accessing during initial access and / or cell reselection according to its own logic.

[0124] In some optional embodiments of the present application, the method further includes: the terminal receiving second information sent by the network device, where the second information includes at least one of the following:

[0125] said measurement event;

[0126] first configuration information or first instruction information for configuring or instructing recording or saving of the first information;

[0127] third information configured for a terminal in an initial access state, the third information including one or more of second configuration information, second indication information, and a first trigger condition for configuring or instructing recording or saving the first information;

[0128] The fourth information is reconfigured for the terminal in the connected state, and the fourth information includes one or more of the third configuration information, third indication information and second trigger condition for reconfiguring or instructing to update the record or save the first information.

[0129] In this embodiment, the network device configures the second information for the terminal, and the terminal may trigger the recording or saving of the first information based on the configuration of the second information. The third information includes one or more of the second configuration information configured for the terminal in the initial state for configuring or instructing the recording or saving of the first information, the second instruction information, and the first trigger condition. Exemplarily, the third information may be used to indicate whether the terminal in the initial access state is permitted to record or save the first information, and may also be used to configure or instruct specific trigger conditions for recording or saving the first information.

[0130] In this embodiment, the fourth information includes one or more of the third configuration information, third indication information and second trigger condition for reconfiguring or instructing to update the record or save the first information. The fourth information can specifically be reconfiguration information or release information, which is used to reconfigure the configuration information previously used for recording or saving the first information. Exemplarily, the fourth information can be used to indicate whether a terminal in the initial access state is allowed to record or save the first information, and can also be used to configure or indicate the specific trigger conditions for recording or saving the first information. If the above-mentioned third information is used to indicate that a terminal in the initial access state is not allowed to record or save the first information, the fourth information can be the same as the configuration of the third information, or it can be different, that is, the fourth information can be used to indicate that a terminal in the initial access state is allowed to record or save the first information, and can also be used to configure or indicate the specific trigger conditions for recording or saving the first information.

[0131] In some optional embodiments, the second information may be transmitted via signaling or a message, and the second information may be carried by a newly added information element (IE, Information Element) in the signaling or the message.

[0132] In some optional embodiments of the present application, sending the first information to the network device includes: the terminal receiving a first request sent by the network device, and sending the first information to the network device based on the first request; the first request is used to request the terminal to send the first information; or, the terminal actively sends the first information to the network device.

[0133] In this embodiment, as one implementation method, the terminal may send the first information to the network device based on a first request from the network device, where the first request is used to request the terminal to send the first information. As another implementation method, the terminal may also proactively send the first information to the network device, that is, the terminal may record or save the first information based on its own logic and then send the first information to the network device according to its own logic.

[0134] In some optional embodiments of the present application, the method further includes: the terminal sending fifth information to the network device, where the fifth information is used to notify the network device that the terminal has recorded or saved the first information.

[0135] In this embodiment, the terminal may send fifth information to the network device, which may also be notification information or a notification message, to notify the network device that the terminal has recorded or saved the first information. In some optional embodiments, after receiving the fifth information, the network device may determine that the terminal has recorded or saved the first information and send a first request to the terminal. The terminal may send the first information to the network device according to the first request.

[0136] In some optional embodiments of the present application, the terminal records or saves the first information and sends the first information to the network device, including: the terminal records or saves the first information within a time period based on the configuration or instruction of the network device, and sends the first information to the network device according to a sending strategy within the time period; the sending strategy includes periodic sending, one-time sending, or sending when an event trigger condition is met.

[0137] In this embodiment, the terminal may send the first information to the network device according to a sending policy; the sending policy may include periodic sending, one-time sending, or sending when an event trigger condition is met. The sending policy may be configured or instructed by the network device. In other optional implementations, the sending policy may also be agreed upon by a protocol or implemented by the terminal's internal logic.

[0138] Based on the above embodiment, the present application also provides an access control method. FIG2 is a second flow chart of the access control method of the present application embodiment; as shown in FIG2 , the method includes:

[0139] Step 201: A network device receives first information sent by a terminal, where the first information includes information related to simplified capability terminal cell access control;

[0140] Step 202: The network device determines whether to adjust or not to adjust access control parameters of a cell for a reduced capability terminal based at least on the first information.

[0141] In this embodiment, the simplified capability terminal records or saves relevant information about cell access control and reports the information to the network device, providing auxiliary information for the network device, which helps the network device to discover errors in the access control configuration for the simplified capability terminal and timely optimize the access control mechanism; in addition, by reporting this information, the network device can also discover the access needs of the simplified capability terminal, providing a basis for subsequent network expansion or optimization of random access resources.

[0142] In some optional embodiments, the first information includes at least one of the following:

[0143] The first identifier indicating whether the terminal is a reduced capability terminal or a traditional terminal;

[0144] A second identifier indicating a simplified capability terminal type or application scenario;

[0145] The number of receiving antennas supported by the terminal;

[0146] a cell identifier, where the cell identifier is an identifier of a cell to which all simplified capability terminals or simplified capability terminals with a specific number of receiving antennas are not allowed to access;

[0147] The measured value of the cell downlink channel quality;

[0148] SSB index;

[0149] Cell barring (cellbar) indication and / or Intra-Frequency Reselection Identifier (IFRI) indication in the MIB;

[0150] Cell barring (cellbar) indication and / or intra-frequency reselection identifier (IFRI) indication in the SIB;

[0151] Types of simplified capability terminals that are prohibited from accessing the cell;

[0152] Intra-frequency reselection identifier (IFRI) indication;

[0153] Terminal location information;

[0154] Terminal capability information.

[0155] In this embodiment, the first identifier is used to indicate whether the terminal is a reduced-capability terminal or a traditional terminal. For example, the first identifier can be represented by one bit. When the first identifier is set to 1 or true, it indicates that the terminal is a reduced-capability terminal; correspondingly, when the first identifier is set to 0 or false, it indicates that the terminal is a traditional terminal.

[0156] In this embodiment, the second identifier is used to represent the simplified capability terminal type or application scenario. Here, different application scenarios may correspond to different simplified capability terminals. In other words, the simplified capability terminal type and the application scenario may correspond. Exemplarily, the second identifier may be represented by 3 bits, or a bitmap may be used to represent the second identifier. Taking the second identifier represented by 3 bits as an example, for example, when the second identifier is set to 000, it indicates that the simplified capability terminal type is an industrial wireless sensor; when the second identifier is set to 001, it indicates that the simplified capability terminal type is a video surveillance device; when the second identifier is set to 010, it indicates that the simplified capability terminal type is a wearable device. Other simplified capability terminal types or application scenarios may also be shown in the above examples.

[0157] In this embodiment, the number of receive antennas refers to the number of receive antennas supported by the terminal (reduced capability terminal). For example, the number of receive antennas can be represented by a single bit, with this bit set to 1 or 0 to correspond to 1Rx or 2Rx, respectively. In other optional embodiments, the number of receive antennas can also be represented by a bitmap.

[0158] In this embodiment, the cell identifier is a cell identifier that does not allow all simplified capability terminals or simplified capability terminals with a specific number of receiving antennas to access. Exemplarily, when the terminal discovers or detects that the cell does not allow all simplified capability terminals or simplified capability terminals with a specific number of receiving antennas to access, the cell identifier (cell ID) may be recorded or stored through the first information.

[0159] In this embodiment, the cell downlink channel quality measurement value refers to the downlink channel quality measured by the terminal under the condition of the number of receiving antennas supported by the terminal, and can be represented by any indicator value that identifies the channel quality. Exemplarily, the cell downlink channel quality measurement value can be represented by RSRP and / or RSRQ.

[0160] In this embodiment, the SSB index refers to the SSB index (SSB index) measured by the terminal.

[0161] In this embodiment, the cell bar indication in the MIB is used to indicate an access rejection state; the intra-frequency reselection identifier (IFRI) indication in the MIB is used to indicate whether intra-frequency neighbor cell reselection is allowed.

[0162] In this embodiment, the cell barring (cellbar) indication in the SIB is specifically for the simplified capability terminal (or RedCap terminal), and specifically can be the (cellbar) indication and / or the same-frequency reselection identifier (IFRI) indication corresponding to the simplified capability terminal with different numbers of receiving antennas of the cell; wherein, the cell barring (cellbar) indication is used to indicate the access rejection status; the same-frequency reselection identifier (IFRI) indication is used to indicate whether the same-frequency neighboring cell reselection is allowed.

[0163] Since simplified capability terminals (or RedCap terminals) support a maximum of 1 and a maximum of 2 receiving antennas respectively, and different receiving antennas have different transmission efficiency and coverage, the SIB (such as SIB1) also defines a cell bar information field for simplified capability terminals (or RedCap terminals) with different numbers of receiving antennas. If the cell bar indication in the MIB is notbar (indicating accessible), the simplified capability terminal (or RedCap terminal) needs to continue to obtain the SIB (such as SIB1) and determine whether it is prohibited from access based on the cell bar indication in the SIB (such as SIB1); if it is prohibited from access, it is necessary to perform neighbor cell reselection according to the IFRI indication in the SIB (such as SIB1). Among them, if the cell bar indication in the SIB (such as SIB1) is prohibited from access and there is no IFRI indication in the SIB, it means that the cell does not allow the simplified capability terminal (or RedCap terminal) to access, and the simplified capability terminal (or RedCap terminal) is allowed to reselect the neighbor cell.

[0164] In this embodiment, the types of simplified capability terminals that are prohibited from accessing the cell may be, for example, all simplified capability terminals (i.e., all types of RedCap terminals are prohibited from accessing), simplified capability terminals with a receiving antenna number of 1 (1Rx RedCap terminal), simplified capability terminals with a receiving antenna number of 2 (2Rx RedCap terminal), and the like.

[0165] In this embodiment, the intra-frequency reselection identifier (IFRI) indication is used to indicate whether the cell allows a reduced capability terminal (or RedCap terminal) to perform intra-frequency neighbor cell reselection, and the IFRI configuration in the MIB and / or SIB may be recorded.

[0166] In this embodiment, the location information of the terminal is specifically the geographical location information of the terminal. The geographical location information can be represented by longitude and latitude, or by a relative position with respect to a network device.

[0167] In this embodiment, the capability information of the terminal includes but is not limited to at least one of the following information of a simplified capability terminal (or RedCap terminal): maximum bandwidth, maximum modulation order, maximum number of MIMO layers, etc.

[0168] In some optional embodiments of the present application, before the network device receives the first information sent by the terminal, the method further includes: the network device sending second information to the terminal, where the second information includes at least one of the following:

[0169] Measuring events;

[0170] first configuration information or first instruction information for configuring or instructing recording or saving of the first information;

[0171] third information configured for a terminal in an initial access state, the third information including one or more of second configuration information, second indication information, and a first trigger condition for configuring or instructing recording or saving the first information;

[0172] The fourth information is reconfigured for the terminal in the connected state, and the fourth information includes one or more of the third configuration information, third indication information and second trigger condition for reconfiguring or instructing to update the record or save the first information.

[0173] In this embodiment, the network device configures the second information for the terminal, and the terminal may trigger the recording or saving of the first information based on the configuration of the second information. The third information includes one or more of the second configuration information configured for the terminal in the initial state for configuring or instructing the recording or saving of the first information, the second instruction information, and the first trigger condition. Exemplarily, the third information may be used to indicate whether the terminal in the initial access state is permitted to record or save the first information, and may also be used to configure or instruct specific trigger conditions for recording or saving the first information.

[0174] In this embodiment, the fourth information includes one or more of the third configuration information, third indication information and second trigger condition for reconfiguring or instructing to update the record or save the first information. The fourth information can specifically be reconfiguration information or release information, which is used to reconfigure the configuration information previously used for recording or saving the first information. Exemplarily, the fourth information can be used to indicate whether a terminal in the initial access state is allowed to record or save the first information, and can also be used to configure or indicate the specific trigger conditions for recording or saving the first information. If the above-mentioned third information is used to indicate that a terminal in the initial access state is not allowed to record or save the first information, the fourth information can be the same as the configuration of the third information, or it can be different, that is, the fourth information can be used to indicate that a terminal in the initial access state is allowed to record or save the first information, and can also be used to configure or indicate the specific trigger conditions for recording or saving the first information.

[0175] In some optional embodiments, the second information may be transmitted via signaling or a message, and the second information may be carried via a newly added IE in the signaling or the message.

[0176] In some optional embodiments of the present application, before the network device receives the first information sent by the terminal, the method further includes: the network device sending a first request to the terminal, where the first request is used to request the terminal to send the first information.

[0177] In this embodiment, the network device may send a first request to the terminal, and the terminal sends the first information to the network device after receiving the first request.

[0178] In some optional embodiments, before the network device sends the first request to the terminal, the method further includes: the network device receiving fifth information sent by the terminal, the fifth information being used to notify the network device that the terminal has recorded or saved the first information.

[0179] In this embodiment, the terminal may send fifth information to the network device, which may also be notification information or a notification message, to notify the network device that the terminal has recorded or saved the first information. In some optional embodiments, after receiving the fifth information, the network device may determine that the terminal has recorded or saved the first information and send a first request to the terminal. The terminal may send the first information to the network device according to the first request.

[0180] In some optional embodiments of the present application, the network device determines whether to adjust or not to adjust the access control parameters of the cell for the simplified capability terminal based at least on the first information, including: the network device determines whether to adjust or not to adjust the access control parameters of the cell for the simplified capability terminal based on the first information and the cell access situation.

[0181] In some optional embodiments, the network device determines whether to adjust or not to adjust the access control parameters of the cell for simplified capability terminals based on the first information and the cell access situation, including: when the cell load is higher than a second threshold and the number of traditional terminal connections is greater than a third threshold, the network device determines not to adjust the access control parameters of the cell for all simplified capability terminals or simplified capability terminals of a specified type; when the cell load is lower than a fourth threshold and resources are not limited, the network device determines to adjust the access control parameters of the cell for all simplified capability terminals or simplified capability terminals of a specified type, so that all simplified capability terminals or simplified capability terminals of a specified type can access the cell.

[0182] In this embodiment, if the cell load is high (such as the cell load is higher than the second threshold) and the number of traditional terminal connections is large (the number of traditional terminal connections is greater than the third threshold), the network device may maintain the cell's prohibition mechanism for all simplified capability terminals or a specific type of simplified capability terminals (such as simplified capability terminals with 1Rx or 2Rx receiving antennas).

[0183] If the load of the cell is low (such as the cell load is lower than the fourth threshold) and the resources are not limited, the network device may consider allowing all simplified capability terminals or specific types of simplified capability terminals (such as simplified capability terminals with 1Rx or 2Rx receiving antennas) to access the cell, and synchronously adjust the access control parameters. The access control parameters can be, for example, the cell bar configuration in the SIB (such as SIB1); further, the network device can optimize the random access channel (RACH) resource configuration to provide dedicated RACH resources (including preamble code and random access time-frequency resources) for access by simplified capability terminals. For example, if the network device finds through statistics that for a certain cell ID (a cell that does not allow redcap terminals to access), the received signal quality of the 2Rx type RedCap terminal reported in the first information from multiple UEs (for example, meeting a certain threshold value or ratio) is better (can be determined based on the number of receiving antennas, cell downlink channel quality measurement value, SSB index, UE location information and other information in the first information), the network device can adjust the configuration to allow 2Rx type RedCap terminals to access this cell, and correspondingly adjust the 2Rx cellbar and IFRI configurations in the SIB message.

[0184] In some optional embodiments of the present application, the method further includes: the network device determining whether to expand the cell or not based on at least the first information.

[0185] In some optional embodiments, the network device determines whether to expand or not to expand the cell based at least on the first information, including: when the cell load is higher than a second threshold and the number of traditional terminal connections is greater than a third threshold, and the number of first information about the cell received by the network device is greater than a fifth threshold, the network device determines whether to expand or not to expand the cell based at least on the first information.

[0186] In this embodiment, if the load of a certain cell (corresponding to the cell ID in the first information) is high (such as higher than the second threshold) and the number of traditional terminal connections is large (such as the number of terminal connections is greater than the third threshold), but the network device statistics finds that multiple UEs (for example, meeting a certain threshold value or proportion) have reported the first information for this cell, that is, a large number of RedCap terminals are within the coverage of this cell and have access needs (which can be determined based on the number of receiving antennas in the first information, the cell downlink channel quality measurement value, the SSB index, the UE location information, and the redcap terminal access control configuration in the SIB message), the network device can further determine whether to expand the capacity of the cell to provide services for the RedCap terminals.

[0187] Based on the above embodiments, the present application also provides an access control device, which is applied to a terminal. FIG3 is a schematic diagram of the structure of the access control device according to the present application; as shown in FIG3 , the device includes: a first processing unit 31 and a first communication unit 32; wherein,

[0188] The first processing unit 31 is configured to record or save first information; the first information is related information of simplified capability terminal cell access control;

[0189] The first communication unit 32 is configured to send the first information to the network device.

[0190] In some optional embodiments of the present application, the first information includes at least one of the following:

[0191] The first identifier indicating whether the terminal is a reduced capability terminal or a traditional terminal;

[0192] A second identifier indicating a simplified capability terminal type or application scenario;

[0193] The number of receiving antennas supported by the terminal;

[0194] a cell identifier, where the cell identifier is an identifier of a cell to which all simplified capability terminals or simplified capability terminals with a specific number of receiving antennas are not allowed to access;

[0195] The measured value of the cell downlink channel quality;

[0196] Synchronization signal and physical broadcast channel block (SSB) index;

[0197] cellbar indication and / or Intra-Frequency Reselection Identifier (IFRI) indication in the Master Information Block (MIB);

[0198] Cellbar indication and / or Intra-Frequency Reselection Identifier (IFRI) indication in the System Information Block (SIB);

[0199] Types of simplified capability terminals that are prohibited from accessing the cell;

[0200] Intra-frequency reselection identifier (IFRI) indication;

[0201] Terminal location information;

[0202] Terminal capability information.

[0203] In some optional embodiments of the present application, the first processing unit 31 is configured to record or save the first information when detecting that a measurement event is satisfied; or, record or save the first information based on the configuration or instruction of the network device; or, actively record or save the first information.

[0204] In some optional embodiments of the present application, the measurement event includes at least: the measured cell signal strength and / or quality is greater than or equal to a first threshold and the cell prohibits terminal access; and / or the configuration or indication of the network device includes at least: the terminal is in an idle state and / or an inactive state, and it is detected that the cell prohibits terminal access during initial access and / or cell reselection.

[0205] In some optional embodiments of the present application, the first communication unit 32 is further configured to receive second information sent by the network device, where the second information includes at least one of the following:

[0206] said measurement event;

[0207] first configuration information or first instruction information for configuring or instructing recording or saving of the first information;

[0208] third information configured for a terminal in an initial access state, the third information including one or more of second configuration information, second indication information, and a first trigger condition for configuring or instructing recording or saving the first information;

[0209] The fourth information is reconfigured for the terminal in the connected state, and the fourth information includes one or more of the third configuration information, third indication information and second trigger condition for reconfiguring or instructing to update the record or save the first information.

[0210] In some optional embodiments of the present application, the first communication unit 32 is configured to receive a first request sent by the network device, and send the first information to the network device based on the first request; the first request is used to request the terminal to send the first information; or, actively send the first information to the network device.

[0211] In some optional embodiments of the present application, the first communication unit 32 is further configured to send fifth information to the network device, where the fifth information is used to notify the network device that the terminal has recorded or saved the first information.

[0212] In some optional embodiments of the present application, the first communication unit 32 is configured to record or save the first information within a time period based on the configuration or instruction of the network device, and send the first information to the network device according to a sending strategy within the time period; the sending strategy includes periodic sending, one-time sending, or sending when an event trigger condition is met.

[0213] In an embodiment of the present application, the first processing unit 31 in the device can be implemented by a central processing unit (CPU), a digital signal processor (DSP), a microcontroller unit (MCU) or a programmable gate array (FPGA) in actual applications; the first communication unit 32 in the device can be implemented by a communication module (including: basic communication kit, operating system, communication module, standardized interface and protocol, etc.) and a transceiver antenna in actual applications.

[0214] The embodiment of the present application also provides an access control device, which is applied to a network device. FIG4 is a second schematic diagram of the structure of the access control device of the embodiment of the present application; As shown in FIG4 , the device includes: a second communication unit 41 and a second processing unit 42; wherein,

[0215] The second communication unit 41 is configured to receive first information sent by a terminal, where the first information includes information related to simplified capability terminal cell access control;

[0216] The second processing unit 42 is configured to determine whether to adjust or not to adjust the access control parameters of the cell for the reduced capability terminal based at least on the first information.

[0217] In some optional embodiments of the present application, the first information includes at least one of the following:

[0218] The first identifier indicating whether the terminal is a reduced capability terminal or a traditional terminal;

[0219] A second identifier indicating a simplified capability terminal type or application scenario;

[0220] The number of receiving antennas supported by the terminal;

[0221] a cell identifier, where the cell identifier is an identifier of a cell to which all simplified capability terminals or simplified capability terminals with a specific number of receiving antennas are not allowed to access;

[0222] The measured value of the cell downlink channel quality;

[0223] Synchronization signal and physical broadcast channel block SSB index;

[0224] cellbar indication and / or Intra-Frequency Reselection Identifier (IFRI) indication in the Master Information Block (MIB);

[0225] Cellbar indication and / or Intra-Frequency Reselection Identifier (IFRI) indication in the System Information Block (SIB);

[0226] Types of simplified capability terminals that are prohibited from accessing the cell;

[0227] Intra-frequency reselection identifier (IFRI) indication;

[0228] Terminal location information;

[0229] Terminal capability information.

[0230] In some optional embodiments of the present application, the second communication unit 41 is further configured to send second information to the terminal before receiving the first information sent by the terminal, where the second information includes at least one of the following:

[0231] Measuring events;

[0232] first configuration information or first instruction information for configuring or instructing recording or saving of the first information;

[0233] third information configured for a terminal in an initial access state, the third information including one or more of second configuration information, second indication information, and a first trigger condition for configuring or instructing recording or saving the first information;

[0234] The fourth information is reconfigured for the terminal in the connected state, and the fourth information includes one or more of the third configuration information, third indication information and second trigger condition for reconfiguring or instructing to update the record or save the first information.

[0235] In some optional embodiments of the present application, the second communication unit 41 is further configured to send a first request to the terminal before receiving the first information sent by the terminal, where the first request is used to request the terminal to send the first information.

[0236] In some optional embodiments of the present application, the second communication unit 41 is further configured to receive fifth information sent by the terminal before sending the first request to the terminal, and the fifth information is used to notify the network device that the terminal has recorded or saved the first information.

[0237] In some optional embodiments of the present application, the second processing unit 42 is configured to determine whether to adjust or not to adjust the access control parameters of the cell for the reduced capability terminal based on the first information and the cell access situation.

[0238] In some optional embodiments of the present application, the second processing unit 42 is configured to determine not to adjust the access control parameters of the cell for all simplified capability terminals or simplified capability terminals of a specified type when the cell load is higher than a second threshold and the number of traditional terminal connections is greater than a third threshold; and to determine to adjust the access control parameters of the cell for all simplified capability terminals or simplified capability terminals of a specified type to enable all simplified capability terminals or simplified capability terminals of a specified type to access the cell when the cell load is lower than a fourth threshold and resources are not limited.

[0239] In some optional embodiments of the present application, the second processing unit 42 is further configured to determine whether to expand the cell or not based on at least the first information.

[0240] In some optional embodiments of the present application, the second processing unit 42 is configured to determine whether to expand the cell or not based on at least the first information when the cell load is higher than a second threshold and the number of traditional terminal connections is greater than a third threshold, and the number of first information about the cell received by the second communication unit 41 is greater than a fifth threshold.

[0241] In an embodiment of the present application, the second processing unit 42 in the device can be implemented by a CPU, DSP, MCU or FPGA in actual applications; the second communication unit 41 in the device can be implemented by a communication module (including: basic communication kit, operating system, communication module, standardized interface and protocol, etc.) and a transceiver antenna in actual applications.

[0242] It should be noted that the access control device provided in the above embodiment only uses the division of the aforementioned program modules as an example to illustrate access control. In actual applications, the aforementioned processing can be assigned to different program modules as needed, that is, the internal structure of the device can be divided into different program modules to complete all or part of the aforementioned processing. Furthermore, the access control device provided in the above embodiment and the access control method embodiment are based on the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0243] The present application also provides a communication device, such as the terminal or network device described in the aforementioned embodiments. FIG5 is a schematic diagram of the hardware structure of the communication device described in the present application. As shown in FIG5 , the communication device includes a memory 52, a processor 51, and a computer program stored in the memory 52 and executable on the processor 51. When the processor 51 executes the program, the steps of the access control method applied to the terminal or network device described in the present application are implemented.

[0244] Optionally, the communication device may further include at least one network interface 53. The various components in the communication device are coupled together via a bus system 54. It will be appreciated that bus system 54 is used to enable connectivity and communication between these components. In addition to a data bus, bus system 54 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in FIG5 , all of these buses are labeled as bus system 54.

[0245] It is understood that the memory 52 can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory, a magnetic surface memory, an optical disk, or a compact disc read-only memory (CD-ROM); the magnetic surface memory can be a magnetic disk or a magnetic tape. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct rambus random access memory (DRRAM).The memory 52 described in the embodiments of the present application is intended to include, but is not limited to, these and any other suitable types of memory.

[0246] The methods disclosed in the above embodiments of the present application can be applied to or implemented by the processor 51. The processor 51 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by the hardware integrated logic circuit in the processor 51 or by instructions in the form of software. The above processor 51 may be a general-purpose processor, a DSP, or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc. The processor 51 can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. A general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of the present application can be directly implemented as being executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium located in the memory 52. ​​The processor 51 reads the information in the memory 52 and, in conjunction with its hardware, completes the steps of the above method.

[0247] In an exemplary embodiment, the communication device may be implemented by one or more application-specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), FPGAs, general-purpose processors, controllers, MCUs, microprocessors, or other electronic components to perform the aforementioned method.

[0248] In an exemplary embodiment, the present application also provides a computer-readable storage medium, such as a memory 52 including a computer program. The computer program can be executed by the processor 51 of the communication device to perform the steps of the aforementioned method. The computer-readable storage medium can be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface mount storage, optical disk, or CD-ROM; or various devices including any one or any combination of the aforementioned memories.

[0249] The computer-readable storage medium provided in the embodiment of the present application stores a computer program thereon, which, when executed by a processor, implements the steps of the access control method applied to a terminal or a network device in the embodiment of the present application.

[0250] An embodiment of the present application further provides a computer program product, including a computer program, which can be executed by a processor of a computer (such as the processor 51 of a communication device) to complete the steps of the access control method described in any of the aforementioned methods.

[0251] The methods disclosed in the several method embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments.

[0252] The features disclosed in the several product embodiments provided in this application can be arbitrarily combined without conflict to obtain new product embodiments.

[0253] The features disclosed in the several method or device embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments or device embodiments.

[0254] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0255] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0256] In addition, all functional units in the embodiments of the present application can be integrated into one processing unit, or each unit can be a separate unit, or two or more units can be integrated into one unit; the above-mentioned integrated units can be implemented in the form of hardware or in the form of hardware plus software functional units.

[0257] Those skilled in the art will understand that all or part of the steps of implementing the above-mentioned method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above-mentioned method embodiment; and the aforementioned storage medium includes: mobile storage devices, ROM, RAM, disks or optical disks, etc. Various media that can store program codes.

[0258] Alternatively, if the above-mentioned integrated unit of the present application is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, magnetic disks or optical disks.

[0259] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. An access control method, the method comprising: The terminal records or saves the first information, and sends the first information to the network device; The first information is information related to simplified capability terminal cell access control.

2. The method according to claim 1, wherein The first information includes at least one of the following: The first identifier indicating whether the terminal is a reduced capability terminal or a traditional terminal; A second identifier indicating a simplified capability terminal type or application scenario; The number of receiving antennas supported by the terminal; a cell identifier, where the cell identifier is an identifier of a cell to which all simplified capability terminals or simplified capability terminals with a specific number of receiving antennas are not allowed to access; The measured value of the cell downlink channel quality; Synchronization signal and physical broadcast channel block SSB index; Cellbar indication and / or IFRI indication in the master information block MIB; Cell bar indication and / or intra-frequency reselection identifier IFRI indication in the system information block SIB; Types of simplified capability terminals that are prohibited from accessing the cell; Intra-frequency reselection identifier IFRI indication; Terminal location information; Terminal capability information.

3. The method according to claim 1, wherein The terminal records or stores the first information, including: The terminal records or saves the first information when detecting that the measurement event is satisfied; or The terminal records or saves the first information based on the configuration or instruction of the network device; or The terminal actively records or saves the first information.

4. The method according to claim 3, wherein: The measurement event at least includes: the measured cell signal strength and / or quality is greater than or equal to a first threshold and the cell prohibits the terminal from accessing; and / or, The configuration or instruction of the network device at least includes: the terminal is in an idle state and / or an inactive state, and it is detected during the initial access and / or cell reselection that the cell prohibits the terminal from accessing.

5. The method according to claim 3, wherein: The method further comprises: The terminal receives second information sent by the network device, where the second information includes at least one of the following: said measurement event; first configuration information or first instruction information for configuring or instructing recording or saving of the first information; third information configured for a terminal in an initial access state, the third information including one or more of second configuration information, second indication information, and a first trigger condition for configuring or instructing recording or saving the first information; The fourth information is reconfigured for the terminal in the connected state, and the fourth information includes one or more of the third configuration information, third indication information and second trigger condition for reconfiguring or instructing to update the record or save the first information.

6. The method according to claim 1, wherein The sending the first information to the network device includes: The terminal receives a first request sent by the network device, and sends the first information to the network device based on the first request; the first request is used to request the terminal to send the first information; or The terminal actively sends the first information to the network device.

7. The method according to claim 6, wherein: The method further comprises: The terminal sends fifth information to the network device, where the fifth information is used to notify the network device that the terminal has recorded or saved the first information.

8. The method according to claim 1, wherein The terminal recording or storing the first information and sending the first information to the network device includes: The terminal records or saves the first information within a time period based on the configuration or instruction of the network device, and sends the first information to the network device according to a sending strategy within the time period; the sending strategy includes periodic sending, one-time sending, or sending when an event trigger condition is met.

9. An access control method, the method comprising: The network device receives first information sent by the terminal, where the first information includes information related to simplified capability terminal cell access control; The network device determines, based at least on the first information, whether to adjust an access control parameter of a cell for a reduced capability terminal.

10. The method according to claim 9, wherein: The first information includes at least one of the following: The first identifier indicating whether the terminal is a reduced capability terminal or a traditional terminal; A second identifier indicating a simplified capability terminal type or application scenario; The number of receiving antennas supported by the terminal; a cell identifier, where the cell identifier is an identifier of a cell to which all simplified capability terminals or simplified capability terminals with a specific number of receiving antennas are not allowed to access; The measured value of the cell downlink channel quality; Synchronization signal and physical broadcast channel block SSB index; Cellbar indication and / or IFRI indication in the master information block MIB; Cell bar indication and / or intra-frequency reselection identifier IFRI indication in the system information block SIB; Types of simplified capability terminals that are prohibited from accessing the cell; Intra-frequency reselection identifier IFRI indication; Terminal location information; Terminal capability information.

11. The method according to claim 9, wherein: Before the network device receives the first information sent by the terminal, the method further includes: The network device sends second information to the terminal, where the second information includes at least one of the following: Measuring events; first configuration information or first instruction information for configuring or instructing recording or saving of the first information; third information configured for a terminal in an initial access state, the third information including one or more of second configuration information, second indication information, and a first trigger condition for configuring or instructing recording or saving the first information; The fourth information is reconfigured for the terminal in the connected state, and the fourth information includes one or more of the third configuration information, third indication information and second trigger condition for reconfiguring or instructing to update the record or save the first information.

12. The method according to claim 9, wherein Before the network device receives the first information sent by the terminal, the method further includes: The network device sends a first request to the terminal, where the first request is used to request the terminal to send first information.

13. The method according to claim 12, wherein: Before the network device sends the first request to the terminal, the method further includes: The network device receives fifth information sent by the terminal, where the fifth information is used to notify the network device that the terminal has recorded or saved the first information.

14. The method according to any one of claims 9 to 13, wherein: The network device determining, based at least on the first information, whether to adjust or not adjust an access control parameter of a cell for a reduced capability terminal, including: The network device determines whether to adjust or not to adjust an access control parameter of the cell for the reduced capability terminal based on the first information and the cell access situation.

15. The method according to claim 14, wherein The network device determining, based on the first information and the cell access status, whether to adjust or not to adjust an access control parameter of a cell for a reduced capability terminal, including: When the cell load is higher than the second threshold and the number of legacy terminal connections is greater than the third threshold, the network device determines not to adjust the access control parameters of the cell for all reduced capability terminals or reduced capability terminals of a specified type; When the cell load is lower than a fourth threshold and resources are not limited, the network device determines to adjust the access control parameters of the cell for all simplified capability terminals or simplified capability terminals of a specified type, so that all simplified capability terminals or simplified capability terminals of a specified type can access the cell.

16. The method according to any one of claims 9 to 13, wherein: The method further comprises: The network device determines whether to expand the cell or not based on at least the first information.

17. The method according to claim 16, wherein The network device determining whether to expand or not expand the cell based at least on the first information includes: When the cell load is higher than the second threshold and the number of traditional terminal connections is greater than the third threshold, and the amount of first information about the cell received by the network device is greater than the fifth threshold, the network device determines whether to expand the cell or not based on at least the first information.

18. An access control device, applied to a terminal, comprising: a first processing unit and a first communication unit; wherein, The first processing unit is configured to record or save first information; the first information is related information of simplified capability terminal cell access control; The first communication unit is configured to send the first information to the network device.

19. An access control device, applied to a network device, comprising: A second communication unit and a second processing unit; wherein, The second communication unit is configured to receive first information sent by a terminal, where the first information includes information related to simplified capability terminal cell access control; The second processing unit is configured to determine whether to adjust or not to adjust an access control parameter of a cell for a reduced capability terminal based at least on the first information.

20. A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method according to any one of claims 1 to 8; or When the program is executed by a processor, the steps of the method according to any one of claims 9 to 17 are implemented.

21. A communication device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the steps of the method according to any one of claims 1 to 8 are implemented; or When the processor executes the program, the steps of the method according to any one of claims 9 to 17 are implemented.

22. A computer program product comprising computer program instructions, the computer program instructions causing a computer to execute the steps of the method according to any one of claims 1 to 8; or The computer program instructions cause a computer to execute the steps of the method according to any one of claims 9 to 17.

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