Base station admission control method based on location regions and transceiver devices

Abstract

The present application discloses a base station admission control method based on location regions and transceiver devices. A base station is configured with a relationship table, the relationship table comprises location regions, transceiver identifiers, and an action, and the action comprises allowing access or rejecting access; a physical layer of the base station sends uplink data to a media access control layer of the base station; a transceiver device identifier list field is added into an uplink data interface between the physical layer and the media access control layer, the field being used for carrying one or more transceiver device identifiers; on the basis of the relationship table, the media access control layer or a ratio resource control layer of the base station acquires an action corresponding to a location region; a determination result is outputted on the basis of the action corresponding to the location region; the base station allows or rejects the access of a user equipment on the basis of the determination result. According to the method provided by the present application, a finer-grained UE admission control method based on location regions is used to refine admission control requirements.

Description

A base station admission control method based on location area and transceiver equipment Technical Field

[0001] The present invention belongs to the field of 4G LTE and 5G NR wireless communications, and specifically relates to a base station admission / access control method for a terminal / UE based on location, area, and transceiver equipment. Background Art

[0002] In the current 4G LTE and 5G NR wireless communications, admission control schemes are mainly based on the reason for UE connection establishment (normal data service, emergency call), UE priority, number of connected UEs, whether the core network supports it, slicing, RB resources, base station hardware resources (CPU / memory), etc. These admission control methods are all at the cell level.

[0003] Summary of the Invention

[0004] Purpose of the invention: In order to achieve smaller-granularity admission control based on location areas, the present invention proposes a base station admission control method based on location areas and transceiver devices. The transceiver device identifier (such as RU_Port_ID in eAxC_ID) in the fronthaul interface (such as eCPRI interface) between the transceiver device and the base station physical layer L1 is used to submit the transceiver device identifier along with the received data to the upper layer layer by layer. The high-level protocol stack cooperates with the OM's configuration management to implement UE admission control based on the transceiver device location area. If the transceiver device identifier does not exist in the fronthaul interface, the RU_Port_ID can also be obtained through the connection relationship between the transceiver device and the base station, uplink measurement, configuration management, and other methods.

[0005] Invention content: The present invention provides a base station access control method based on location area and transceiver device, wherein the base station is configured with a relationship table, the relationship table including location area, transceiver device identifier and action, the action including allowing access or denying access; the transceiver device receives uplink data of the user terminal, and the physical layer of the base station sends the uplink data to the media access control layer of the base station; a field of a transceiver device identifier list is added to the uplink data interface between the physical layer and the media access control layer, for carrying one or more transceiver device identifiers, and one or more transceiver device identifiers constitute the transceiver device identifier list; the media access control layer or the wireless resource control layer of the base station obtains the action corresponding to the location area based on the relationship table; a judgment result is output based on the action corresponding to the location area; the base station allows the user terminal in the location area to access based on the judgment result, or the base station denies the user terminal that initiates the initial access request in the location area based on the judgment result, or releases the user terminal that has accessed the location area.

[0006] In some embodiments, each of the location areas includes one or more of the transceiver devices.

[0007] In some embodiments, the relationship table further includes a time period and / or a user terminal identifier, and the action value is assigned to the location area according to the time period.

[0008] In some embodiments, the base station is a first-standard base station having a first FAPI interface, and the first FAPI interface serves as an uplink data interface between the physical layer and the media access control layer. The first-standard base station is a 4G base station, and the first FAPI interface is a 4G FAPI interface. In the LTE system, contention-based random access has four signaling messages, msg1 to msg4, which are respectively recorded as the first signaling, the second signaling, the third signaling, and the fourth signaling.

[0009] In some embodiments, the transceiver device identification list field is added to the first FAPI interface, specifically added to any one or several of RACH.indication, NRACH.indication, NB_HARQ.indication, RX_ULSCH.indication, HARQ.indication, CRC.indication, SRS.indication, RX_SR.indication, and RX_CQI.indication in the first FAPI interface.

[0010] In some embodiments, the media access control layer of the first-standard base station receives uplink data containing first signaling, and the uplink data contains the transceiver device identification list. The media access control layer compares the transceiver device identification list with the relationship table based on the relationship table, obtains the action corresponding to the location area, outputs a judgment result based on the action corresponding to the location area, and allows or rejects the user terminal that initiates an initial access request in the location area based on the judgment result; if access is rejected, the media access control layer of the first-standard base station adds a backoff indication information unit in the second signaling, indicating the waiting time for the user terminal in the location area to initiate access again.

[0011] In some embodiments, when the media access control layer of the first-standard base station receives uplink data containing third signaling, the uplink data contains the transceiver device identification list, and the media access control layer compares the transceiver device identification list with the relationship table based on the relationship table, obtains the action corresponding to the location area, outputs a judgment result based on the action corresponding to the location area, and allows or rejects the user terminal that initiates the initial access request in the location area based on the judgment result; if access is rejected, the media access control layer of the first-standard base station sends a fourth signaling to reject access of the user terminal in the location area where the transceiver device is located.

[0012] In some embodiments, the media access control layer of the first-standard base station receives uplink data containing the third signaling and sends it to the wireless resource control layer, and adds a transceiver device identification list field in the uplink control signaling carrying the third signaling, which is used to carry one or more transceiver device identifications; the wireless resource control layer compares the transceiver device identification list with the relationship table based on the relationship table, obtains the action corresponding to the location area, outputs a judgment result based on the action corresponding to the location area, and allows or rejects the user terminal that initiates the initial access request in the location area based on the judgment result; if access is rejected, the wireless resource control layer of the first-standard base station sends signaling to the user terminal in the location area where the transceiver device is located, rejecting access of the user terminal in the location area where the transceiver device is located.

[0013] In some embodiments, the media access control layer of the first-standard base station receives uplink data and records the user terminal identifier and the corresponding transceiver device identifier list, and sends a fourth signaling, wherein the fourth signaling carries a signaling for determining the access of the user terminal device; the media access control layer of the first-standard base station receives uplink data containing the fifth signaling and sends it to the wireless resource control layer, and adds a new transceiver device identifier list field in the uplink control signaling carrying the fifth signaling, which is used to carry one or more transceiver device identifiers; the wireless resource control layer compares the user terminal identifier or the transceiver device identifier list with the relationship table based on the relationship table, obtains the action corresponding to the location area, outputs a judgment result based on the action corresponding to the location area, and allows the service to continue or releases the user terminal that has accessed the location area based on the judgment result; if access is denied, the wireless resource control layer of the first-standard base station sends a signaling to the user terminal in the location area where the transceiver device is located, notifying the user terminal to release the wireless resource connection.

[0014] In some embodiments, the media access control layer of the first-standard base station receives uplink data and records the user terminal identifier and the corresponding transceiver device identifier list, and adds a new information unit in the control message of the uplink data according to the number X of data packets received from the user terminal or at a period P, the information unit is used to carry the transceiver device identifier list, and sends the transceiver device identifier list information of the user terminal to the wireless resource control layer; the wireless resource control layer compares the user terminal identifier or the transceiver device identifier list with the relationship table based on the relationship table, obtains the action corresponding to the location area, outputs a judgment result based on the action corresponding to the location area, and allows the service to continue or releases the user terminal that has accessed the location area based on the judgment result; if access is denied, the first-standard base station initiates control signaling to the mobile management entity to release the user terminal resources; the mobile management entity releases the user terminal resources and sends control signaling to the first-standard base station to release the user terminal; the first-standard base station notifies the user terminal to release the wireless resource connection.

[0015] In some embodiments, the base station is a second-standard base station having a second FAPI interface, and the second FAPI interface, as an uplink data interface between the physical layer and the media access control layer, includes a second FAPI interface in the second-standard base station. The second-standard base station is a 5G base station, and the second API interface is a 5G FAPI interface.

[0016] In some embodiments, a transceiver device identification list field is added to the second FAPI interface to carry one or more transceiver device identifications, specifically added to any one or several interfaces of RACH.indication, RX_Data.indication, CRC.indication, UCI.indication, and SRS.indication in the second FAPI interface.

[0017] In some embodiments, after the distribution unit of the second-standard base station receives the transceiver device identification list sent by the second FAPI interface, it compares the transceiver device identification list with the relationship table based on the relationship table, outputs a judgment result based on the action corresponding to the location area, and allows or rejects the user terminal that initiates an initial access request in the location area based on the judgment result; if access is rejected, the distribution unit of the second-standard base station adds a backoff indication information unit in the second signaling, indicating the waiting time for the user terminal in the location area to initiate access again.

[0018] In some embodiments, the distribution unit of the second-standard base station receives uplink data containing a third signaling, and the uplink data contains a list of transceiver device identifiers. The distribution unit of the second-standard base station compares the list of transceiver device identifiers with the relationship table based on the relationship table, outputs a judgment result based on the action corresponding to the location area, and allows or rejects the user terminal that initiates an initial access request in the location area based on the judgment result; if access is rejected, the distribution unit of the second-standard base station sends a fourth signaling to reject access of the user terminal that initiates a connection request to the location area.

[0019] In some embodiments, the distribution unit of the second-standard base station receives uplink data containing third signaling, and the uplink data contains a list of transceiver device identifiers, fills the third signaling and the transceiver device identifier list into the signaling message between the centralized unit and the distributed unit, and sends it to the centralized unit control plane of the second-standard base station; the centralized unit control plane of the second-standard base station compares the transceiver device identifier list with the relationship table based on the relationship table, obtains the action corresponding to the location area, outputs a judgment result based on the action corresponding to the location area, and allows or rejects the user terminal that initiates the initial access request in the location area based on the judgment result; if access is rejected, the centralized unit of the second-standard base station sends signaling to the user terminal that initiates the connection request in the location area to reject access of the user terminal.

[0020] In some embodiments, the distribution unit of the second-standard base station sends a fourth signaling, which carries a signaling for determining the access of the user terminal; the distribution unit of the second-standard base station receives the fifth signaling, records the user terminal information and the corresponding transceiver device identification list, and adds a new information element in the application protocol signaling between the centralized unit and the distributed unit, and the information element is used to store the transceiver device identification list, which is sent to the centralized unit together with the fifth signaling; the centralized unit control plane of the second-standard base station compares the user terminal identification or the transceiver device identification list with the relationship table based on the relationship table, obtains the action corresponding to the location area, outputs a judgment result based on the action corresponding to the location area, and allows the service to continue or releases the user terminal that has accessed the location area based on the judgment result; if access is denied, the centralized unit control plane of the second-standard base station sends a message to the user terminal in the location area, notifying the user terminal to release the wireless resource connection.

[0021] In some embodiments, the distribution unit of the second-standard base station receives uplink data and records the user terminal identifier and the corresponding transceiver device identifier list. The distribution unit of the second-standard base station compares the user terminal identifier or the transceiver device identifier list with the relationship table based on the relationship table, obtains the action corresponding to the location area, outputs a judgment result based on the action corresponding to the location area, and allows the service to continue or release the user terminal that has been connected in the location area based on the judgment result; if access is denied, the distribution unit of the second-standard base station initiates a request to release the signaling connection to the centralized unit control plane; the centralized unit control plane of the second-standard base station initiates a request to release the signaling connection to the access and mobility management unit; the access and mobility management unit sends a signaling to the centralized unit control plane of the second-standard base station to start the connection release. Release; the centralized unit control plane of the second-standard base station sends a bearer release signaling to the user plane; the centralized unit user plane of the second-standard base station releases all relevant bearer and user data transmission resources, and sends a message to the centralized unit control plane of the second-standard base station to confirm that the release of the centralized unit user plane of the second-standard base station is completed; the centralized unit control plane of the second-standard base station sends a release message to the distributed unit of the second-standard base station; the distributed unit of the second-standard base station sends a signaling to the user terminal, and the user terminal releases the wireless resource connection; the distributed unit of the second-standard base station releases the wireless resources, and sends a message of the user terminal release completion to the centralized unit control plane of the second-standard base station; the second-standard base station sends a message of the user terminal release completion to the access and mobility management unit, and the resource release is completed.

[0022] In some embodiments, the distributed unit of the second-standard base station receives uplink data and records user terminal information and a corresponding transceiver device identification list, and sends the transceiver device identification list information of the user terminal data to the centralized unit control plane of the second-standard base station through a protocol message between the newly added centralized unit and the distributed unit according to the number X of data packets received from the user terminal or at a period P; the centralized unit control plane of the second-standard base station compares the user terminal identification or the transceiver device identification list with the relationship table based on the relationship table, obtains an action corresponding to the location area, outputs a judgment result based on the action corresponding to the location area, and allows the service to continue or releases the user terminal that has been connected to the location area based on the judgment result;

[0023] If the reception is rejected, the centralized unit control surface of the second-standard base station initiates a request to the access and mobility management unit to release the signaling connection;

[0024] The access and mobility management unit sends a terminal release signaling to the centralized unit control plane of the second-standard base station;

[0025] The centralized unit control plane of the second-standard base station sends a signaling of releasing the bearer to the user plane;

[0026] The user plane of the centralized unit of the second-standard base station releases all related bearer and user data transmission resources, and sends a bearer release completion message to the centralized unit control plane of the second-standard base station;

[0027] The centralized unit of the second-standard base station controls the sending of a message of the user terminal release signaling to the distributed unit of the second-standard base station;

[0028] The distribution unit of the second-standard base station sends a signaling to the user terminal, and the user terminal releases the radio resource connection;

[0029] The distributed unit of the second-standard base station releases radio resources and sends a signaling indicating the completion of the user terminal release to the control plane of the centralized unit of the second-standard base station;

[0030] The second-standard base station sends a signaling indicating that the user terminal is released to the access and mobility management unit, and the resource release is completed.

[0031] Beneficial effect: Compared with the existing technology, the base station admission / access control method for terminals / UEs based on location areas and transceiver equipment proposed in the present invention is further subdivided on the basis of the cell level, and the cell coverage range is divided into multiple logical location areas to perform a more fine-grained UE admission control method based on location areas. The existing base station admission control schemes are all based on the cell level, and the cell-level coverage range is large and cannot solve the refined admission control needs of specific customers and scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0033] FIG1 is a schematic diagram showing that a user terminal UE-1 can only access Region-5;

[0034] FIG2 is a schematic diagram of user terminal UE-1 being prohibited from accessing Region-5;

[0035] FIG3 is a flowchart of an action to obtain the location area corresponding to the user terminal UE;

[0036] FIG4 is a flowchart of the rapid rejection in Example 1;

[0037] FIG5 is a flowchart of a fast rejection in Example 2;

[0038] FIG6 is a flowchart of slow rejection in Example 3;

[0039] FIG7 is a schematic diagram of a user terminal UE release process in Example 4;

[0040] FIG8 is a timing diagram of the 5G DU initiating the release of the user terminal UE in Example 10;

[0041] Figure 9 is a timing diagram of UE release initiated by 5G CU-CP in Example 11. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0043] The existing FAPI interface between the physical layer L1 and the media access control layer L2 of 4G and 5G base stations, as well as the signaling / data between the media access control layer L2 and the radio resource control layer L3, do not carry the transceiver device identification. The received data cannot be identified at the higher level, and the receiving location area of ​​the data cannot be queried. Therefore, the existing technology cannot achieve access control with a smaller granularity.

[0044] In some technologies, multiple sets of access control parameters are configured for user terminals (UEs) of the same access level based on network resource availability, prioritizing certain UEs initiating access procedures to access the network. This is essentially intended to improve network resource utilization. However, access control based on the UE's location is not possible. In some technologies, if a base station is located in an illegal area based on base station registration information, it will be denied access to the core network, preventing it from serving users connected to that small base station. This is a base station access control method that does not accurately control UE access by region. Therefore, in scenarios with multiple transceivers (such as AAUs, RUs, RRUs, O-RUs, PRRUs, RRHs, TRPs, RFUs, and headends), such as large-coverage cells and in-building cells, there is currently no solution for access control that prohibits or allows UE access to specific transceivers (e.g., AAUs, RUs, RRUs, O-RUs, PRRUs, RRHs, TRPs, RFUs, and headends). The access control scope is too large, making it impossible to implement more granular, location-area-based access control. Therefore, a more granular, location-area-based admission control method is proposed.

[0045] The refined admission control method based on location area has a wide range of applications, such as:

[0046] (1) Wide coverage flat area (such as manufacturing plants, mines)

[0047] 1) The equipment robot for installing the terminal is limited to working in designated workshops and areas. If it moves out of the authorized range, the connection can be disconnected, and an alarm will be issued to the system, notifying the administrator to deal with it in time to avoid safety accidents; as shown in Figure 1, the base station access control method based on location area and transceiver equipment of the present application can realize that the user terminal UE-1 can only access the location area of ​​Region-5, and can also be realized as shown in Figure 2, which can prohibit the user terminal UE-1 from accessing the location area of ​​Region-5 and allow access to other location areas except the Region-5 location area.

[0048] 2) Unauthorized terminal access is prohibited in specific areas such as core manufacturing areas. This can lead to security incidents such as (camera) terminal equipment being unable to transmit data, leading to leaks, and serious damage caused by hacked devices entering the area.

[0049] (2) Building-based communities (e.g. banks, confidential units)

[0050] 1) For security reasons, the vault / core confidential area is only accessible to high-level authorized terminals, and terminals outside the area are not allowed to access;

[0051] 2) Security or different functional departments have different jurisdictions. The allocated terminals can only be used within their own jurisdiction. Access to terminals outside the jurisdiction will be denied or released, thus avoiding security incidents and terminal leaks.

[0052] The present application provides a base station access control method based on location area and transceiver equipment. First, a relationship table is configured for the base station. The relationship table includes the location area, transceiver equipment identifier and action. The action includes allowing access or denying access. The specific process is as follows: After the transceiver equipment is powered on and started, a registration request is initiated to the configuration management module OM of the base station. The configuration management module OM assigns a unique transceiver equipment identifier Device_ID of the base station to each transceiver equipment. The transceiver equipment identifier is written into the configured relationship table and can be used directly next time.

[0053] The relationship table configured for the base station is shown in Table 1. Each location area includes one or more transceiver devices, and each location area corresponds to an action. The configuration relationship table is as follows:

[0054] Table 1 Relationship between location area and transceiver equipment configuration

[0055] As shown in Tables 2-3, the relationship table may also include time periods and / or user terminal identifiers, and action values ​​are assigned to location areas according to time periods. As shown in Table 2, the time periods are added to the configured relationship table.

[0056] Table 2 contains the configuration relationship table of time periods

[0057] As shown in Table 3, the user terminal identifier UE_ID is added to the configured relationship table;

[0058] Table 3 Relationship between location area and transceiver equipment configuration

[0059] The transceiver receives uplink data from the user terminal UE, and the physical layer of the base station sends the uplink data to the media access control layer L2 of the base station; a field for the transceiver device identification list is added to the FAPI interface between the physical layer and the media access control layer L2 to carry one or more transceiver device port numbers RU_Port_ID;

[0060] The media access control layer L2 or the radio resource control layer L3 of the base station is based on the configured relationship table; obtains the action corresponding to the Region_ID of the location area where the transceiver device is located, and searches under the location area Region_ID whether a user terminal UE is associated. If so, the judgment result is output according to the action Action configured by the user terminal UE. If not, the judgment result is output according to the default action Action in the location area. If there is no default action Action configuration in the location area, the judgment result is output according to the default action of the cell. The flow chart is shown in Figure 2.

[0061] Outputting a judgment result based on the action corresponding to the location area; the base station allows the user terminal UE in the location area to access based on the judgment result, or the base station denies the user terminal UE in the location area to access based on the judgment result.

[0062] Example 1

[0063] In the LTE scenario, the user terminal UE initiates random access. If the area where the transceiver of the base station eNB is located is configured to prohibit all user terminals UE from accessing within a specified time period in the area (or other policies), of course, the relationship table can also be configured with a policy that allows all user terminals UE to access within the current time period. The relationship table configuration is managed by the user. In this case, there is no need to identify the user terminal identifier UE_ID. After the base station eNB receives the first signaling MSG1 sent by the user terminal UE, the media access control layer L2 of the base station eNB directly rejects the user terminal UE's access through the second signaling MSG2, without waiting for the third signaling MSG3 or even the fifth signaling MSG5 signaling interaction before rejecting, thereby achieving the fastest rejection. As shown in Figure 4, the specific implementation steps are as follows:

[0064] Step 101: The network management system configures a relationship table for the base station eNB, assigns action values ​​to location areas according to time periods, and prohibits all user terminals UE from accessing the area where the transceiver is located during a certain time period. The relationship table is shown in Table 2.

[0065] Step 102: The transceiver receives the Preamble data sent by the user terminal UE and sends it to the physical layer of the base station via an uplink data interface eCPRI interface message. The eAxC_ID element in the uplink eCPRI data interface carries the transceiver port number RU_Port_ID, indicating which transceiver received the Preamble.

[0066] Step 103: The physical layer L1 of the base station receives the preamble data of the user terminal UE received by one or more transceiver devices, and after combining, fills the preamble data and the transceiver device port number RU_Port_ID into the RACH.indication or NB_HARQ.indication interface in the SCF082LTE FAPI interface. A new field "Device_ID List" is added to the RACH.indication or NB_HARQ.indication to carry the port number RU_Port_ID of one or more transceiver devices. The port number RU_Port_ID of the transceiver device serves as the transceiver device identifier.

[0067] In step 104, the media access control layer L2 of the base station eNB receives uplink data of the RACH.indication or NB_HARQ.indication interface, which includes the transceiver device identification list Device_ID List, and reads the network management system configuration. It is found through the transceiver device identification list Device_ID List that the area where the user terminal UE is located is currently prohibited from access by all user terminals UE. A backoff indication information unit BI (Backoff Indicator) is added to the second signaling MSG2 (RAR) to indicate the waiting time for the user terminal in the location area to initiate access again. The size of the backoff indication information unit BI is configurable.

[0068] The beneficial effect of the scenario in this embodiment is that the user terminal UE initiates an initial random access request to the LTE system, and the base station eNB directly rejects access by all user terminals UE after receiving the first signaling MSG1. The base station advances the rejection of access to the second signaling MSG2 stage without having to wait until the third signaling MSG3, thereby achieving the fastest response and the highest performance.

[0069] Example 2

[0070] In the LTE scenario, the user terminal UE initiates random access. If the area where the base station eNB's transceiver equipment is located is configured to prohibit all user terminals UE from accessing within the specified time period (or other policies), of course, the relationship table can also be configured with a policy that allows all user terminals UE to access within the current time period. The relationship table configuration is managed by the user. At this time, there is no need to identify the user terminal UE. After the eNB receives the third signaling MSG3 sent by the user terminal UE, the base station eNB media access control layer L2 rejects the user terminal UE's access, reducing the message interaction with the radio resource control layer L3 and achieving a faster access response. As shown in Figure 5, the specific implementation steps are as follows:

[0071] In step 201, the network management system configures a relationship table for the base station eNB, assigns action values ​​to location areas according to time periods, and prohibits all user terminals UE from accessing the area where the transceiver is located during a certain time period. The relationship table is shown in Table 2.

[0072] Step 202: In the third signaling MSG3 phase, the physical layer of the base station receives uplink data from the user terminal UE received by one or more transceiver devices, and after combining, fills the uplink data and the transceiver device port number RU_Port_ID into the RX_ULSCH.indication interface in the SCF082LTE FAPI interface, and adds a "Transceiver Device ID List Device_ID List" field in RX_ULSCH.indication to carry the port number RU_Port_ID of one or more transceiver devices;

[0073] In step 203, the media access control layer L2 of the base station eNB receives uplink data including the third signaling MSG3, which includes a transceiver device identification list, and reads the network management system configuration. It queries the transceiver device identification list Device_ID List in the uplink data and finds that the area where the user terminal UE is located currently prohibits all user terminals UE from accessing. The media access control layer L2 of the base station sends an RRCConnectionReject signaling to the user terminal UE in the location area, rejecting the user terminal UE's access.

[0074] The beneficial effect of the scenario in this embodiment is that the user terminal UE initiates an initial random access request to the LTE system, and the base station eNB rejects the access of the user terminal UE after the media access control layer L2 receives the third signaling MSG3 according to the relationship table, without having to wait for interaction with the mobility management entity MME, thereby reducing the signaling interaction with the user terminal UE and the mobility management entity MME, and having better performance; and the rejection process is advanced to the media access control layer L2 for processing, reducing the signaling interaction between the media access control layer L2 and the radio resource control layer L3, and having higher performance than the rejection of the radio resource control layer L3.

[0075] Example 3

[0076] In the LTE scenario, the user terminal UE initiates random access. If the area where the transceiver of the base station eNB is located is configured to prohibit all user terminals UE from accessing within a specified time period in the area (or other policies), of course, the relationship table can also be configured with a policy that allows all user terminals UE to access within the current time period. The relationship table configuration is managed by the user. In this case, there is no need to identify the user terminal identifier UE_ID. After the base station eNB receives the third signaling MSG3 sent by the user terminal UE, the base station eNB radio resource control layer L3 denies the user terminal UE access. As shown in Figure 6, the specific implementation steps are as follows:

[0077] In step 301, the network management system configures a relationship table for the base station eNB, assigns action values ​​to location areas according to time periods, and prohibits all user terminals UE from accessing the area where the transceiver is located during a certain time period. The relationship table is shown in Table 2.

[0078] Step 302: In the third signaling MSG3 phase, the physical layer of the base station receives uplink data from the user terminal UE received by one or more transceiver devices, and after combining, fills the uplink data and the transceiver device port number RU_Port_ID into the RX_ULSCH.indication interface in the SCF082LTE FAPI interface, and adds a "Transceiver Device ID List Device_ID List" field in RX_ULSCH.indication to carry the port number RU_Port_ID of one or more transceiver devices;

[0079] Step 303: The media access control layer L2 of the base station eNB receives uplink data including the third signaling MSG3, and sends the Device_ID List and MSG3 in the uplink data to the radio resource control layer L3. A "Device_ID List" field is added to the uplink control signaling UL-CCCH-Message carrying the third signaling MSG3, which is used to carry the port numbers RU_Port_ID of one or more transceiver devices.

[0080] In step 304, the radio resource control layer L3 reads the relationship table and queries the transceiver device identifier list Device_ID List in the uplink data to find that the area where the user terminal UE is located currently prohibits all user terminals UE from accessing. The radio resource control layer L3 then sends an RRCConnectionReject signaling to the user terminal UE in the location area to deny access to the user terminal UE. The beneficial effect of the scenario in this embodiment is that the user terminal UE initiates an initial random access request to the LTE system, and the base station eNB denies access to all user terminals UE by the radio resource control layer L3 according to the relationship table. Putting the rejection process in the radio resource control layer L3 is more consistent with the architecture of the radio resource control layer L3 performing unified admission control.

[0081] Example 4

[0082] In LTE scenarios, for connected user terminals (UEs), after the base station (eNB) receives the MSG5 sent by the UE, it queries the relationship table and executes the action configured for the UE. The specific implementation steps are as follows:

[0083] Step 401: The network management system configures a relationship table for the base station eNB, as shown in Table 3. The relationship table includes mapping relationships between location areas, transceiver device identifiers, user terminal identifiers UE_ID, and actions.

[0084] Step 402: The user terminal UE sends a fifth message signaling MSG5. The physical layer of the base station receives uplink data of the user terminal UE received by one or more transceiver devices, and after combining, fills the uplink data and the transceiver device port number RU_Port_ID into the SCF082LTE FAPI interface, including HARQ.indication, CRC.indication, RX_ULSCH.indication, SRS.indication, RX_SR.indication, RX_CQI.indication, and NB_HARQ.indication interfaces. A "Transceiver Device Identification List Device_ID List" field is added to the above message. The "Transceiver Device Identification List Device_ID List" field is used to carry the port number RU_Port_ID of one or more transceiver devices.

[0085] Step 403: The media access control layer L2 of the base station eNB receives the uplink data and records the user terminal identifier UE_ID and the transceiver device identifier list Device_ID List;

[0086] Step 404: Add a "Device_ID List" field to the uplink control signaling UL-DCCH-Message and send it to the radio resource control layer L3 together with the fifth signaling MSG5; the newly added "Device_ID List" field is used to store the Device_ID List;

[0087] In step 405, the radio resource control layer L3 reads the relationship table, compares the user terminal identifier UE_ID or the transceiver device identifier list Device_ID with the relationship table, and queries whether the user terminal identifier UE_ID exists in the location area corresponding to the transceiver device identifier. If so, the action configured in the relationship table is executed. If not, the default action corresponding to the location area is executed. If the access is denied, the process proceeds to step 406 to release the user terminal that has accessed the location area.

[0088] Step 406: The base station eNB sends an RRCConnectionRelease message to the user terminal UE, notifying the user terminal UE to release the RRC connection. The ReleaseCause is newly added with the enumeration value "outOfAvailableRegion".

[0089] The beneficial effect of the scenario in this embodiment is that, for a user terminal UE that has accessed the LTE system, the base station eNB denies the user terminal UE access according to the user terminal identifier UE_ID in the relationship table, thereby achieving more accurate access control.

[0090] Example 5

[0091] In an LTE scenario, a user terminal UE is allowed to access a first location area and is prohibited from accessing a second location area. For an already-accessed user terminal UE, when the user terminal UE moves from the first location area where the user terminal UE is allowed to access to a second location area where the user terminal UE is denied access, the base station releases the user terminal UE. As shown in FIG7 , the specific implementation steps are as follows:

[0092] Step 501: The network management system configures a relationship table for the base station eNB, where the relationship table includes mapping relationships between location areas, transceiver device identifiers, user terminal identifiers UE_ID, and actions.

[0093] Step 502: After accessing a first location area where the user terminal UE is allowed, the user terminal UE then moves to a second location area where the user terminal UE is denied access. One or more transceiver devices in the second location area simultaneously receive uplink data sent by the user terminal UE and send the data to the physical layer of the base station via an uplink data interface eCPRI interface message. The eAxC_ID element in the uplink eCPRI data interface carries the transceiver port number RU_Port_ID, indicating which transceiver device received the uplink data.

[0094] Step 503: The physical layer of the base station receives uplink data of the user terminal UE received by one or more transceiver devices, and after combining processing, fills the uplink data and the transceiver device port number RU_Port_ID into the SCF082LTE FAPI interface, including HARQ.indication, CRC.indication, RX_ULSCH.indication, SRS.indication, RX_SR.indication, RX_CQI.indication, and NB_HARQ.indication. A "Transceiver Device Identification List Device_ID List" field is added to the above message. The "Transceiver Device Identification List Device_ID List" field is used to carry the port number RU_Port_ID of one or more transceiver devices;

[0095] Step 504: The media access control layer L2 of the base station eNB receives the uplink data and records the user terminal identifier UE_ID and the transceiver device identifier list Device_ID List; according to the number X of data packets received from the user terminal UE or at a period P, the transceiver device identifier list Device_ID List is sent to the radio resource control layer L3 via the newly added IE "UEReceiveDeviceIdInformation" in the UL-DCCH-Message;

[0096] In step 505, the radio resource control layer L3 reads the relationship table, compares the user terminal identifier UE_ID or the transceiver device identifier list Device_ID with the relationship table, and obtains whether the area where the user terminal UE is located currently allows or denies access to the current user terminal UE; if access is denied, the process proceeds to step 506 to release the user terminal that has accessed the location area;

[0097] Step 506: The eNB sends a UE CONTEXT RELEASE REQUEST to the MME to release the UE's related resources. The Cause in the message is the newly added enumeration value "Out of Available Region".

[0098] Step 507: The mobility management entity MME releases the resources related to the user terminal UE and sends a UE CONTEXT RELEASE COMMAND to the base station eNB to release the user terminal UE. The release cause is the newly added enumeration value "Out of Available Region".

[0099] Step 508: The base station eNB sends an RRCConnectionRelease message to the user terminal UE, notifying the user terminal UE to release the RRC connection. The ReleaseCause field is newly added with the enumeration value "outOfAvailableRegion".

[0100] The beneficial effect of the scenario in this embodiment is that different visited location areas are set for the same user terminal UE, which can restrict the activities of the user terminal UE and disconnect the user terminal UE even if it enters a prohibited location area after access.

[0101] Example 6

[0102] In NR scenarios, when a user terminal (UE) initiates random access, if the area where the gNB's transceiver is located is configured to prohibit all UEs from accessing the area during a specified time period (or other policies), a policy that allows all UEs to access the area during the current time period can also be configured in the relationship table. The relationship table configuration is managed by the user. In this case, the UE ID does not need to be identified. After the gNB receives the first signaling message MSG1 sent by the UE, the 5G base station distribution unit (DU) denies the UE access, reducing the exchange of gNB-CU-CP messages and achieving a faster admission response. The specific implementation steps are as follows:

[0103] In step 601, the network management system configures a relationship table for the gNB, assigning action values ​​to location areas based on time periods. The area where the transceiver is located prohibits all user terminals (UEs) from accessing it during a certain time period. The relationship table is shown in Table 2.

[0104] In step 602, the user terminal (UE) sends a preamble to the gNB. One or more transceivers receive the preamble data from the user terminal (UE) and send it to the physical layer via an uplink data interface (eCPRI) interface message. The eAxC_ID information element in the uplink eCPRI data interface carries the transceiver port ID (RU_Port_ID) indicating which transceiver received the preamble.

[0105] In step 603, the physical layer of the base station receives the preamble data of the user terminal UE received by one or more transceiver devices, and after combining, fills the preamble data and the transceiver device port number RU_Port_ID into the RACH.indication of the 5G FAPI interface. A new "Device_ID List" field is added to the RACH.indication to carry the port number RU_Port_ID of one or more transceiver devices;

[0106] In step 604, after receiving the uplink data of the RACH.indication interface, the 5G base station distribution unit gNB-DU reads the relationship table and queries the transceiver device identification list Device_ID List to find that the area where the user terminal UE is located currently prohibits all user terminals UE from accessing. A backoff indication information unit BI (Backoff Indicator) is added to the second signaling MSG2 (RAR) to indicate the waiting time for user terminals in the location area to initiate access again. The size of the backoff indication information unit BI is configurable.

[0107] The beneficial effect of the scenario in this embodiment is that when the user terminal UE initiates random access to the 5G NR system, the base station gNB directly rejects access of all user terminals UE after receiving the first signaling MSG1 according to the relationship table by the 5G base station distribution unit DU. This scenario advances the access rejection to the earliest second or third signaling MSG2 stage without having to wait until MSG3, achieving the best performance.

[0108] Example 7

[0109] In NR scenarios, when a user terminal (UE) initiates random access, if the area where the gNB's transceiver is located is configured to prohibit all UEs from accessing the area during a specified time period (or other policies), a policy that allows all UEs to access the area during the current time period can also be configured in the relationship table. The relationship table configuration is managed by the user. In this case, the UE_ID does not need to be identified. After the gNB receives the third signaling message MSG3 sent by the UE, the 5G base station distribution unit gNB-DU denies the UE access, reducing the interaction with the gNB-CU-CP message and achieving a faster admission response. The specific implementation steps are as follows:

[0110] In step 701, the network management system configures a relationship table for the gNB, assigning action values ​​to location areas based on time periods. The area where the transceiver is located prohibits all user terminals (UEs) from accessing it during a certain time period. The relationship table is shown in Table 2.

[0111] Step 702: In the third signaling MSG3 phase, the physical layer of the base station receives uplink data from the user terminal UE received by one or more transceiver devices, and after combining, fills the uplink data and the transceiver device port number RU_Port_ID into the RX_Data.indication of the 5G FAPI interface. A new "Transceiver Device ID List Device_ID List" field is added to RX_Data.indication to carry the port number RU_Port_ID of one or more transceiver devices;

[0112] In step 703, the 5G base station distribution unit gNB-DU receives uplink data including the third signaling MSG3, which includes the transceiver device identification list Device_ID List. The 5G base station distribution unit gNB-DU reads the relationship table and finds through the transceiver device identification list Device_ID List that the area where the user terminal UE is located currently prohibits all user terminals UE from accessing. The 5G base station distribution unit gNB-DU sends an RRCReject signaling to the user terminal UE to deny access to the user terminal UE.

[0113] The beneficial effect of this embodiment is that when a user terminal (UE) initiates random access to the 5G NR system, the gNB denies access to all UEs after receiving the third signaling message MSG3 from the distributed unit (DU) according to the relationship table. This scenario advances the denial of access to after MSG3, eliminating the need for signaling interaction with the AMF, resulting in faster access. Furthermore, by moving the denial process to the distributed unit (DU), the signaling interaction between the distributed unit (DU) and the centralized unit (CU) is reduced, resulting in higher performance compared to centralized unit (CU) denial.

[0114] Example 8

[0115] In the NR scenario, a user terminal UE initiates random access. If the area where the base station gNB's transceiver is located is configured to prohibit all user terminals UE from accessing the area during a specified time period (or other policies), the relationship table can also be configured to allow all user terminals UE to access the area during the current time period. The relationship table configuration is managed by the user. In this case, the user terminal identifier UE_ID does not need to be identified. After the base station gNB receives the third signaling MSG3 sent by the user terminal UE, it sends the third signaling MSG3 to the centralized unit CU via the F1 interface message, and the centralized unit CU denies the user terminal UE access. The specific implementation steps are as follows:

[0116] In step 801, the network management system configures a relationship table for the gNB, assigning action values ​​to location areas based on time periods. The area where the transceiver is located prohibits all user terminals (UEs) from accessing it during a certain time period. The relationship table is shown in Table 2.

[0117] Step 802: In the third signaling MSG3 phase, the physical layer of the base station receives uplink data from the user terminal UE received by one or more transceiver devices, and after combining, fills the uplink data and the transceiver device port number RU_Port_ID into the RX_Data.indication of the 5G FAPI interface. A new "Transceiver Device ID List Device_ID List" field is added to RX_Data.indication to carry the port number RU_Port_ID of one or more transceiver devices;

[0118] In step 803, the 5G base station distributed unit gNB-DU receives uplink data including the third signaling message MSG3, and adds the transceiver device identifier list (Device_ID List) of the uplink data to the F1 signaling message INITIAL UL RRC MESSAGE TRANSFER between the centralized unit and the distributed unit. The message is sent to the centralized unit control plane gNB-CU-CP along with the third signaling message. A new IE field "Device_ID List" is added to the INITIAL UL RRC MESSAGE TRANSFER.

[0119] In step 804, the 5G base station centralized unit control plane gNB-CU-CP reads the relationship table and queries the transceiver device identification list Device_ID List to find that the area where the user terminal UE is located currently prohibits all user terminals UE from accessing. The 5G base station centralized unit control plane gNB-CU-CP sends RRCReject signaling to the user terminal UE to reject access.

[0120] The beneficial effect of the scenario in this embodiment is that when the user terminal UE initiates random access to the 5G NR system, the base station gNB centralized unit CU rejects all user terminals UE access, and the rejection process is placed in the centralized unit CU for processing, which is more in line with the architecture of CU performing unified admission control.

[0121] Embodiment 9

[0122] Used in NR scenarios, when a user terminal (UE) initiates random access. After the gNB CU receives the fifth signaling message MSG5 from the user terminal, but the area where the transceiver is located is configured to prohibit access to the user terminal UE.

[0123] Step 901: The network management system configures a relationship table for the base station gNB. The relationship table contains mapping relationships between location areas, transceiver device identifiers, user terminal identifiers UE_IDs, and actions.

[0124] Step 902: In the fifth signaling MSG5 stage, the physical layer of the base station receives the uplink data of the user terminal UE received by one or more transceiver devices, and after combining, fills the uplink data and the transceiver device port number RU_Port_ID into the 5G FAPI interface, including RX_Data.indication, CRC.indication, UCI.indication, and SRS.indication. A new "Transceiver Device Identification List Device_ID List" field is added to the above interface to carry the port number RU_Port_ID of one or more transceiver devices;

[0125] Step 903: The 5G base station distribution unit gNB-DU receives the uplink data and records the user terminal identifier UE_ID and the transceiver device identifier list Device_ID List;

[0126] Step 904: Fill the transceiver device identification list Device_ID List into the application protocol F1AP signaling message UL RRC MESSAGE TRANSFER between the centralized unit and the distributed unit, and send it to the centralized unit CU together with the fifth signaling message MSG5. A new IE "Transceiver Device Identification List Device_ID List" field is added to the UL RRC MESSAGE TRANSFER.

[0127] In step 905, the 5G base station centralized unit control plane gNB-CU-CP reads the relationship table, compares the user terminal identifier UE_ID or the transceiver device identifier list Device_ID List with the relationship table, and queries whether the user terminal identifier UE_ID exists in the location area corresponding to the transceiver device identifier. If so, the action is executed according to the configuration in the relationship table. If not, the default action corresponding to the location area is executed. If the comparison result is access denied, the process proceeds to step 906 to release the user terminal that has accessed the location area.

[0128] In step 906, the 5G base station centralized unit control plane gNB CU-CP sends an RRCRelease message to the user terminal UE, notifying the user terminal UE to release the RRC connection.

[0129] The beneficial effect of the scenario in this embodiment is that during the 5G NR random access process, the base station gNB denies access to the user terminal UE according to the user terminal identifier UE_ID according to the relationship table, thereby achieving more precise access control.

[0130] Example 10

[0131] In NR scenarios, a user terminal (UE) is allowed to access the network in a first location area and has already accessed the network in the first location area. If the user terminal (UE) moves from the first location area where it is allowed to access to a second location area where it is denied access, the base station distribution unit (gNB DU) initiates a UE connection release. As shown in Figure 8, the specific implementation steps are as follows:

[0132] Step 1001: The network management system configures a relationship table for a base station eNB, where the relationship table includes mapping relationships between location areas, transceiver device identifiers, user terminal identifiers UE_IDs, and actions.

[0133] Step 1002: After accessing a first location area where the user terminal UE is allowed, the user terminal UE then moves to a second location area where the user terminal UE is denied access. One or more transceiver devices in the second location area simultaneously receive uplink data sent by the user terminal UE and send the data to the physical layer of the base station via an uplink data interface eCPRI interface message. The eAxC_ID element in the uplink eCPRI data interface carries the transceiver port number RU_Port_ID, indicating which transceiver device received the uplink data.

[0134] Step 1003: The physical layer of the base station receives uplink data from one or more transceiver devices to the user terminal UE. After combining, the uplink data and the transceiver device port number RU_Port_ID are filled into the 5G FAPI interface, including RX_Data.indication, CRC.indication, UCI.indication, and SRS.indication. A new "Transceiver Device Identification List Device_ID List" field is added to the above interface. The "Transceiver Device Identification List Device_ID List" field is used to carry the port number RU_Port_ID of one or more transceiver devices.

[0135] In step 1004, the 5G base station distribution unit gNB-DU receives uplink data and records the user terminal identifier UE_ID and the transceiver device identifier list Device_ID List. It compares the user terminal identifier UE_ID or the transceiver device identifier list Device_ID with the relationship table and queries whether the user terminal identifier UE_ID exists in the location area corresponding to the transceiver device identifier. If so, the action configured in the relationship table is executed. If not, the default action corresponding to the location area is executed. If the comparison result is access denied, the process proceeds to step 1005.

[0136] Step 1005: The 5G base station distribution unit gNB-DU initiates a UE CONTEXT RELEASE REQUEST message to the centralized control plane CU-CP to release the signaling connection. The Cause in the message is the newly added enumeration value "Out of Available Region".

[0137] Step 1006: The gNB initiates a UE CONTEXT RELEASE REQUEST request to the 5GC AMF to release the signaling connection. The Cause in the message is the newly added enumeration value "Out of Available Region".

[0138] In step 1007, the access and mobility management module (AMF) decides to terminate the service for the UE. The AMF sends a UE CONTEXT RELEASE COMMAND signaling to the gNB to trigger the connection release. The release Cause is the newly added enumeration value "Out of Available Region".

[0139] In step 1008, the centralized unit control plane gNB-CU-CP of the 5G base station sends a BEARER CONTEXT RELEASE COMMAND message to the user plane gNB-CU-UP, where Cause is the newly added enumeration value "Out of Available Region".

[0140] In step 1009, the centralized unit user plane gNB-CU-UP of the 5G base station releases all related bearer and user data transmission resources and sends a BEARER CONTEXT RELEASE COMPLETE message to the centralized unit control plane gNB-CU-CP.

[0141] Step 1010: The 5G base station centralized unit control plane gNB-CU-CP sends a UE CONTEXT RELEASE COMMAND message to the 5G base station distributed unit gNB-DU, carrying an RRCRelease message, with the release Cause being the newly added enumeration value "Out of Available Region".

[0142] Step 1011: The 5G base station distribution unit gNB-DU sends an RRCRelease signaling to the user terminal UE, and the user terminal UE releases the RRC connection;

[0143] Step 1012: The 5G base station distributed unit gNB-DU releases radio resources and sends a UE CONTEXT RELEASE COMPLETE message to the 5G base station centralized unit control plane gNB-CU-CP.

[0144] In step 1013, the gNB sends a UE CONTEXT RELEASE COMPLETE message to the AMF, indicating that the resource release is complete.

[0145] The beneficial effect of this scenario is that different access zones or time periods can be set for the same user terminal (UE), allowing for more flexible UE activity restrictions. When a UE in a 5G NR network moves from an allowed access zone to a new unavailable location zone, the base station distribution unit (gNB DU) initiates UE release. The DU is the first to detect and proactively release the UE, ensuring more timely processing.

[0146] Example 11

[0147] In the NR scenario, the user terminal UE is allowed to access in the first location area and has already accessed the network in the first location area. For the user terminal UE that has already accessed the network, when the user terminal UE moves from the first location area where the user terminal is allowed to access to the second location area where the user terminal UE is denied access, the centralized unit control plane gNB-CU-CP of the 5G base station releases the user terminal UE connection. As shown in Figure 9, the specific implementation steps are as follows:

[0148] Step 1101: The network management system configures a relationship table for the base station eNB, where the relationship table includes mapping relationships between location areas, transceiver device identifiers, user terminal identifiers UE_ID, and actions.

[0149] Step 1102: After accessing a first location area where the user terminal UE is allowed, the user terminal UE then moves to a second location area where the user terminal UE is denied access. One or more transceiver devices in the second location area simultaneously receive uplink data sent by the user terminal UE and send the data to the physical layer of the base station via an uplink data interface eCPRI interface message. The eAxC_ID element in the uplink eCPRI data interface carries the transceiver port number RU_Port_ID, indicating which transceiver device received the uplink data.

[0150] Step 1103: The physical layer of the base station receives uplink data from one or more transceiver devices to the user terminal UE. After combining, the uplink data and the transceiver device port number RU_Port_ID are filled into the 5G FAPI interface, including RX_Data.indication, CRC.indication, UCI.indication, and SRS.indication. A new "Transceiver Device Identification List Device_ID List" field is added to the above interface. The "Transceiver Device Identification List Device_ID List" field is used to carry the port number RU_Port_ID of one or more transceiver devices.

[0151] In step 1104, the 5G base station distributed unit gNB-DU receives uplink data and records the user terminal identifier UE_ID and the transceiver device identifier list Device_ID List. Based on the number X of data packets received from the user terminal UE or at a period P, the 5G base station distributed unit gNB-DU sends the UE data receiving and transceiver device identifier list Device_ID List to the centralized unit control plane gNB-CU-CP of the base station via the newly added F1AP signaling between the centralized unit and the distributed unit "UE Receive Device ID Information".

[0152] In step 1105, the centralized unit control plane gNB-CU-CP of the 5G base station reads the relationship table, compares the user terminal identifier UE_ID or the transceiver device identifier list Device_ID with the relationship table, and queries whether the user terminal identifier UE_ID exists in the location area corresponding to the transceiver device identifier. If so, the action configured in the relationship table is executed. If not, the default action corresponding to the location area is executed. If the comparison result is access denied, the process proceeds to step 1106.

[0153] In step 1106, the centralized unit control plane gNB-CU-CP of the 5G base station initiates a UE CONTEXT RELEASE REQUEST request to the access and mobility management unit 5GC AMF to release the signaling connection. The Cause in the message is the newly added enumeration value "Out of Available Region".

[0154] In step 1107, the access and mobility management module (AMF) decides to terminate the service for the UE. The AMF sends a UE CONTEXT RELEASE COMMAND signaling to the gNB to trigger the connection release. The release Cause is the newly added enumeration value "Out of Available Region".

[0155] In step 1108, the centralized unit control plane gNB-CU-CP of the 5G base station sends a BEARER CONTEXT RELEASE COMMAND message to the user plane gNB-CU-UP, where the Cause is the newly added enumeration value "Out of Available Region".

[0156] In step 1109, the 5G base station centralized unit user plane gNB-CU-UP releases all related bearer and user data transmission resources and sends a BEARER CONTEXT RELEASE COMPLETE message to the 5G base station centralized unit control plane gNB-CU-CP.

[0157] Step 1110: The central control plane of the gNB-CU-CP sends a UE CONTEXT RELEASE COMMAND message to the distributed unit gNB-DU, carrying an RRCRelease message with the release Cause being the newly added enumeration value "Out of Available Region".

[0158] Step 1111: The 5G base station distribution unit gNB-DU sends an RRCRelease signaling to the user terminal UE, and the user terminal UE releases the RRC connection.

[0159] In step 1112, the 5G base station distributed unit gNB-DU releases radio resources and sends a UE CONTEXT RELEASE COMPLETE message to the centralized unit control plane gNB-CU-CP of the base station.

[0160] In step 1113, the gNB sends a UE CONTEXT RELEASE COMPLETE message to the AMF, completing the resource release.

[0161] The beneficial effects of the scenario in this embodiment are: setting different access areas or time periods for the same user terminal UE can more flexibly restrict the activities of the user terminal UE; the centralized unit control plane CU-CP processing is more in line with the unified admission control processing specification, reducing the processing load of the DU.

[0162] This application divides multiple logical location areas at the cell level, and configures a mapping relationship table between the logical location area Region_ID and the transceiver device identifier. The location area is bound to the user terminal UE identifier (UE_ID: IMSI, MSISDN, SUPI, etc.) and configures whether the user terminal UE is allowed to access the area. At the same time, the signaling and data received by the base station need to carry the transceiver device identifier list Device_ID List and the user terminal identifier UE_ID. The transceiver device list can be one or more transceiver devices.

[0163] Then, through the mapping relationship table configured above, combined with the Device_ID List in the data received by the base station high-level layer (media access control layer L2, radio resource control layer L3), the Region_ID of the transceiver device is queried, and then the UE_ID of the signaling / data is queried to see if it is within the range. If it is within the range, the configured action is executed. If allowed, the UE will successfully access and continue subsequent services. If prohibited, the corresponding rejection process is used according to the different stages of UE access to prohibit UE access. If the terminal has already accessed, the connection between the UE and the base station is released. If the UE is not within the range, the default admission control policy will be used to determine whether the UE is allowed to access.

[0164] To implement this application, it is necessary to transform and enhance the uplink data interface of the FAPI interface between the physical layer L1 and the media access control layer L2, the data reception signaling between the media access control layer L2 and the radio resource control layer L3, and add signaling of the relationship between the UE and the transceiver device to which the received data belongs in the access scenario, as well as expand the UE release cause value "Out of Available Region" with each protocol layer (F1, S1, NG, E1, etc.).

[0165] This application does not conflict with existing base station access technology, but is a powerful supplement to existing technology. By enhancing, expanding and adding various interfaces through this application, customers can implement access control measures with a smaller range than the existing cell level in scenarios with multiple transceiver devices such as wide coverage or three-dimensional cells, thereby meeting customers' needs for more precise and flexible management and control of terminal available location areas, and creating value for customers.

[0166] In addition to implementing location-based access control, this application can also be extended to various applications, such as:

[0167] 1) When entering an unauthorized area, the terminal can be restricted, scheduled, and slowed down. The scalable actions are not limited to allow and deny.

[0168] 2) Record terminal activity traces for operation and maintenance management and security tracking;

[0169] 3) Enter unauthorized areas, conduct alarm notifications, and send various forms of notifications;

[0170] 4) Database can be introduced to record terminal business, occurrence area and other event logs for retrospective tracking;

[0171] 5) Users can flexibly configure the actions of management terminals in designated areas, such as allowing access, prohibiting access, continuing service, reducing speed, releasing connection, recording services and tracks, issuing alarms, and other personalized needs;

[0172] 6) The policy for a specific area can be combined with complex rules such as time periods, such that different rules can be applied to different time periods in the area;

[0173] 7) Calculate the area where the user terminal UE is located through high-precision positioning;

[0174] 8) Establish whitelist and blacklist configurations for user terminal UE admission control.

Claims

1. A base station admission control method based on location area and transceiver equipment, characterized in that: The base station is configured with a relationship table, the relationship table includes a location area, a transceiver device identifier and an action, the action includes allowing access or denying access; the transceiver device receives uplink data of a user terminal, and the physical layer of the base station sends the uplink data to the media access control layer of the base station; A field of a transceiver device identification list is added in an uplink data interface between the physical layer and the media access control layer, for carrying one or more transceiver device identifications, wherein the one or more transceiver device identifications constitute the transceiver device identification list; The media access control layer or the radio resource control layer of the base station acquires an action corresponding to the location area based on the relationship table; Outputting a judgment result based on the action corresponding to the location area; the base station allows the user terminal in the location area to access based on the judgment result, or, the base station rejects the user terminal initiating an initial access request in the location area based on the judgment result, or releases the user terminal that has accessed the location area.

2. A base station admission control method based on location area and transceiver equipment according to claim 1, characterized in that: Each of the location areas includes one or more of the transceiver devices.

3. A method for base station admission control based on location area and transceiver equipment according to claim 2, characterized in that: The relationship table also includes time periods and / or user terminal identifiers, and action values ​​are assigned to the location areas according to time periods.

4. A method for base station admission control based on location area and transceiver equipment according to claim 2 or 3, characterized in that: The base station is a first-standard base station having a first FAPI interface, and the first FAPI interface serves as an uplink data interface between the physical layer and the media access control layer.

5. A method for base station admission control based on location area and transceiver equipment according to claim 4, characterized in that: The transceiver device identification list field is added to the first FAPI interface, specifically, it is added to any one or several interfaces of RACH.indication, NRACH.indication, NB_HARQ.indication, RX_ULSCH.indication, HARQ.indication, CRC.indication, SRS.indication, RX_SR.indication, and RX_CQI.indication in the first FAPI interface.

6. A method for base station admission control based on location area and transceiver equipment according to claim 4, characterized in that: The media access control layer of the first-standard base station receives uplink data including the first signaling, the uplink data including the transceiver device identification list, the media access control layer compares the transceiver device identification list with the relationship table based on the relationship table, obtains the action corresponding to the location area, outputs a judgment result based on the action corresponding to the location area, and allows or rejects the user terminal that initiates the initial access request in the location area based on the judgment result; If access is denied, the media access control layer of the first standard base station adds a backoff indication information unit in the second signaling, Indicates a waiting time for the user terminal in the location area to initiate access again.

7. A method for base station admission control based on location area and transceiver equipment according to claim 4, characterized in that: When the media access control layer of the first-standard base station receives uplink data including the third signaling, the uplink data includes the transceiver device identification list, the media access control layer compares the transceiver device identification list with the relationship table based on the relationship table, obtains the action corresponding to the location area, outputs a judgment result based on the action corresponding to the location area, and allows or rejects the user terminal that initiates the initial access request in the location area based on the judgment result; If access is denied, the media access control layer of the first-standard base station sends a fourth signaling to deny access to the user terminal in the location area where the transceiver device is located.

8. A method for base station admission control based on location area and transceiver equipment according to claim 4, characterized in that: The media access control layer of the first-standard base station receives uplink data including the third signaling and sends it to the radio resource control layer, and adds a transceiver device identifier list field in the uplink control signaling carrying the third signaling, which is used to carry one or more transceiver device identifiers; the radio resource control layer compares the transceiver device identifier list with the relationship table based on the relationship table, obtains the action corresponding to the location area, outputs a judgment result based on the action corresponding to the location area, and allows or rejects the user terminal that initiates the initial access request in the location area based on the judgment result; If access is denied, the radio resource control layer of the first-standard base station sends a signaling to the user terminal in the location area where the transceiver device is located, denying access to the user terminal in the location area where the transceiver device is located.

9. A method for base station admission control based on location area and transceiver equipment according to claim 4, characterized in that: The media access control layer of the first-standard base station receives the uplink data and records the user terminal identifier and the corresponding transceiver device identifier list, and sends a fourth signaling, where the fourth signaling carries a signaling for determining the access of the user terminal device; The media access control layer of the first-standard base station receives uplink data including the fifth signaling and sends it to the radio resource control layer, and adds a transceiver device identifier list field in the uplink control signaling carrying the fifth signaling, which is used to carry one or more transceiver device identifiers; the radio resource control layer compares the user terminal identifier or the transceiver device identifier list with the relationship table based on the relationship table, obtains the action corresponding to the location area, outputs a judgment result based on the action corresponding to the location area, and allows the service to continue or releases the user terminal that has been connected in the location area based on the judgment result; If the access is denied, the radio resource control layer of the first standard base station sends a signaling to the user terminal in the location area where the transceiver device is located, informing the user terminal to release the radio resource connection.

10. A method for base station admission control based on location area and transceiver equipment according to claim 4, characterized in that: The media access control layer of the first-standard base station receives uplink data and records the user terminal identifier and the corresponding transceiver device identifier list, adds an information unit to the control message of the uplink data according to the number of data packets X received from the user terminal or at a period P, the information unit is used to carry the transceiver device identifier list, and sends the transceiver device identifier list information of the user terminal to the radio resource control layer; The radio resource control layer compares the user terminal identifier or the transceiver device identifier list with the relationship table based on the relationship table, obtains the action corresponding to the location area, outputs a judgment result based on the action corresponding to the location area, and allows the service to continue or releases the user terminal that has been connected in the location area based on the judgment result; If the access is denied, the first standard base station initiates control signaling to the mobility management entity to release the user terminal resources; The mobility management entity releases user terminal resources and sends a control signaling to the first-standard base station to release the user terminal; The first-standard base station notifies the user terminal to release the radio resource connection.

11. A method for base station admission control based on location area and transceiver equipment according to claim 2 or 3, characterized in that: The base station is a second-standard base station having a second FAPI interface, and the second FAPI interface serves as an uplink data interface between the physical layer and the media access control layer and includes the second FAPI interface in the second-standard base station.

12. A method for base station admission control based on location area and transceiver equipment according to claim 11, characterized in that: in, A transceiver device identification list field is added to the second FAPI interface to carry one or more transceiver device identifications, specifically added to any one or several interfaces of RACH.indication, RX_Data.indication, CRC.indication, UCI.indication, and SRS.indication in the second FAPI interface.

13. A method for base station admission control based on location area and transceiver equipment according to claim 11, characterized in that: After receiving the transceiver device identification list sent by the second FAPI interface, the distribution unit of the second standard base station compares the transceiver device identification list with the relationship table based on the relationship table, outputs a judgment result based on the action corresponding to the location area, and allows or rejects the user terminal that initiates the initial access request in the location area based on the judgment result; If the access is denied, the distribution unit of the second-standard base station adds a backoff indication information unit in the second signaling to indicate a waiting time for the user terminal in the location area to initiate access again.

14. A method for base station admission control based on location area and transceiver equipment according to claim 11, characterized in that: The distribution unit of the second-standard base station receives uplink data including the third signaling, the uplink data including a transceiver device identification list, the distribution unit of the second-standard base station compares the transceiver device identification list with the relationship table based on the relationship table, outputs a judgment result based on the action corresponding to the location area, and allows or rejects the user terminal that initiates the initial access request in the location area based on the judgment result; If access is denied, the distribution unit of the second-standard base station sends a fourth signaling to deny access to the user terminal that initiates a connection request to the location area.

15. The base station admission control method based on location area and transceiver equipment according to claim 11, characterized in that: The distributed unit of the second-standard base station receives uplink data including the third signaling, the uplink data including the transceiver device identification list, fills the third signaling and the transceiver device identification list into the signaling message between the centralized unit and the distributed unit, and sends it to the centralized unit control plane of the second-standard base station; The centralized unit control plane of the second-standard base station compares the transceiver device identification list with the relationship table based on the relationship table, obtains the action corresponding to the location area, outputs a judgment result based on the action corresponding to the location area, and allows or rejects the user terminal that initiates the initial access request in the location area based on the judgment result; If access is denied, the centralized unit of the second-standard base station sends a signaling to the user terminal that initiates a connection request in the location area to deny access to the user terminal.

16. A method for base station admission control based on location area and transceiver equipment according to claim 11, characterized in that: The distributed unit of the second-standard base station sends a fourth signaling, the fourth signaling carries a signaling for determining the access of the user terminal; the distributed unit of the second-standard base station receives the fifth signaling, records the user terminal information and the corresponding transceiver device identification list, and adds a new cell in the application protocol signaling between the centralized unit and the distributed unit, the cell is used to store the transceiver device identification list, and is sent to the centralized unit together with the fifth signaling; The centralized unit control plane of the second-standard base station compares the user terminal identifier or the transceiver device identifier list with the relationship table based on the relationship table, obtains the action corresponding to the location area, outputs a judgment result based on the action corresponding to the location area, and allows the service to continue or releases the user terminal that has been connected in the location area based on the judgment result; If the access is denied, the centralized unit of the second-standard base station controls the sending of a message to the user terminal in the location area to notify the user terminal to release the wireless resource connection.

17. A method for base station admission control based on location area and transceiver equipment according to claim 11, characterized in that: The distribution unit of the second-standard base station receives uplink data and records the user terminal identifier and the corresponding transceiver device identifier list, and the distribution unit of the second-standard base station compares the user terminal identifier or the transceiver device identifier list with the relationship table based on the relationship table, obtains the action corresponding to the location area, outputs a judgment result based on the action corresponding to the location area, and allows the service to continue or releases the user terminal that has been connected in the location area based on the judgment result; If the access is denied, the distributed unit of the second standard base station initiates a request to the centralized unit control plane to release the signaling connection; The centralized unit control of the second standard base station initiates a request to release the signaling connection to the access and mobility management unit; The access and mobility management unit sends a signaling to the centralized unit control plane of the second-standard base station to start connection release; The centralized unit control plane of the second-standard base station sends a bearer release signaling to the user plane; The centralized unit user plane of the second-standard base station releases all related bearer and user data transmission resources, and transmits the second-standard The centralized unit control plane of the second-standard base station sends a message to confirm that the user plane of the centralized unit of the second-standard base station is released; The centralized unit of the second-standard base station controls sending a release message to the distributed unit of the second-standard base station; The distribution unit of the second-standard base station sends a signaling to the user terminal, and the user terminal releases the radio resource connection; The distributed unit of the second-standard base station releases the radio resources, and sends a message of completion of the user terminal release to the centralized unit control plane of the second-standard base station; The second-standard base station sends a message indicating that the user terminal is released to the access and mobility management unit, and the resource release is completed.

18. The base station admission control method based on location area and transceiver equipment according to claim 11, characterized in that: The distributed unit of the second-standard base station receives uplink data and records the user terminal information and the corresponding transceiver device identification list, and sends the receiving transceiver device identification list information of the user terminal data to the control plane of the centralized unit of the second-standard base station through a protocol message added between the centralized unit and the distributed unit according to the number X of data packets received from the user terminal or at a period P; The centralized unit control plane of the second-standard base station compares the user terminal identifier or the transceiver device identifier list with the relationship table based on the relationship table, obtains the action corresponding to the location area, outputs a judgment result based on the action corresponding to the location area, and allows the service to continue or releases the user terminal that has been connected in the location area based on the judgment result; If the reception is rejected, the centralized unit control of the second standard base station initiates a request to release the signaling connection to the access and mobility management unit; The access and mobility management unit sends a signaling to the centralized unit control plane of the second-standard base station to start connection release; The centralized unit control plane of the second-standard base station sends a signaling of releasing the bearer to the user plane; The centralized unit user plane of the second-standard base station releases all related bearers and user data transmission resources, and sends a bearer release completion message to the centralized unit control plane of the second-standard base station; The centralized unit of the second-standard base station controls the distributed unit of the second-standard base station to send a message of the user terminal release signaling; The distribution unit of the second-standard base station sends a signaling to the user terminal, and the user terminal releases the radio resource connection; The distributed unit of the second-standard base station releases the radio resources, and sends a signaling indicating the completion of the user terminal release to the control plane of the centralized unit of the second-standard base station; The second-standard base station sends a signaling indicating the completion of releasing the user terminal to the access and mobility management unit, and the resource release is completed.

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