Terminal access method, system and device and storage medium

Abstract

The invention discloses a terminal access method, system and device and a storage medium, and the method comprises the steps: determining the busy and idle degree of interface resources according to the energy value of a random access window, and transmitting an access window busy and idle indication to an access and mobility management function unit of a core network according to the busy and idle degree; the energy value of the random access window is determined according to an access request of the terminal; receiving an access window instruction sent by the access and mobility management function unit, and modifying the time-frequency resource of the default access group according to the access window instruction; the access window instruction is determined according to the actual default access group resource of the current base station and the access resource of the regional base station. The embodiment of the invention can improve the success rate of terminal access and the utilization rate of interface resources, and can be widely applied to the technical field of communication.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a terminal access method, system, device and storage medium. Background Art

[0002] In current 4G, 5G and other communication systems, the terminal access adopts the aloha access method. This access method will cause access failure when there are many terminals, especially when the IoT terminals are powered on at the same time. The current 3GPP (3rd Generation Partnership Project) solution is: when access fails, it will randomly back off for a period of time, and then restart access. This will greatly increase the access time and seriously waste air interface resources. If the number of merged access users exceeds the maximum window of random backoff, random backoff will also be difficult to access, resulting in a large number of users being unable to go online. Access can only be guaranteed by manually shutting down and starting up in time. Summary of the invention

[0003] In view of this, an object of the embodiments of the present invention is to provide a terminal access method, system, device and storage medium, which can improve the success rate of terminal access and the utilization rate of interface resources.

[0004] On the one hand, an embodiment of the present invention provides a terminal access method, which is applied to a base station, wherein the interface resources of the base station include a default access group and a dynamic access group, including:

[0005] Determine the busyness of the interface resource according to the energy value of the random access window, and send an access window busyness indication to the access and mobility management function unit of the core network according to the busyness; the energy value of the random access window is determined according to the access request of the terminal;

[0006] Receive an access window instruction sent by an access and mobility management functional unit, and modify the time and frequency resources of the default access group according to the access window instruction; the access window instruction is determined according to the actual default access group resources of the current base station and the access resources of the regional base station.

[0007] Optionally, the terminal access method applied to the base station further includes:

[0008] receiving a create access window message sent by the access and mobility management function unit, and creating a dynamic access group according to the create access window message;

[0009] Send scheduling information to the terminal and receive an access request from the terminal.

[0010] Optionally, determining the busyness or idleness of the interface resource according to the energy value of the random access window includes:

[0011] If the energy value of the random access window is greater than the first preset energy value for several consecutive times and no terminal access is successful, it is determined that the interface resource is in a busy state;

[0012] If the energy value of the random access window is less than the second preset energy value for several consecutive times, and the actual default access group resources of the current base station are greater than the preset minimum default resource value, it is determined that the interface resources are in an idle state.

[0013] Optionally, the terminal access method applied to the base station further includes:

[0014] Broadcasting the modified time and frequency resources of the default access group to the terminal;

[0015] Sending modification resource completion information to the access and mobility management function unit.

[0016] On the other hand, an embodiment of the present invention provides a terminal access method, which is applied to an access and mobility management function unit of a core network, including:

[0017] Receiving the access window busy / idle indication sent by the base station, determining the default access group resources to be used by the current base station according to the actual default access group resources of the current base station and the access resources of the regional base station;

[0018] According to the above, the default access group resources should be used to send an access window instruction to the base station.

[0019] Optionally, the terminal access method applied to the access and mobility management function unit of the core network further includes:

[0020] The resource size and period of the dynamic access group are determined according to the number of idle terminals in the area, and a create access window message is sent to the base station according to the resource size and period of the dynamic access group.

[0021] Optionally, the terminal access method applied to the access and mobility management function unit of the core network further includes:

[0022] The receiving terminal sends a resource modification completion message or an access window creation completion message.

[0023] On the other hand, an embodiment of the present invention provides a terminal access device, including:

[0024] at least one processor;

[0025] at least one memory for storing at least one program;

[0026] When the at least one program is executed by the at least one processor, the at least one processor implements the above-mentioned terminal access method applied to the access and mobility management function unit of the base station or core network.

[0027] On the other hand, an embodiment of the present invention provides a computer-readable storage medium, which stores a program executable by a processor, and the program executable by the processor is used to execute the above-mentioned terminal access method applied to the access and mobility management functional unit of the base station or core network when executed by the processor.

[0028] On the other hand, an embodiment of the present invention provides a terminal access system, including a terminal, a base station and an access and mobility management functional unit of a core network; wherein:

[0029] The terminal is used to initiate an access request to the base station;

[0030] The base station is used to execute the terminal access method applied to the base station;

[0031] The access and mobility management functional unit of the core network is used to execute the terminal access method applied to the access and mobility management functional unit of the core network.

[0032] Implementation of the embodiments of the present invention includes the following beneficial effects: in this embodiment, the base station determines the busyness of the interface resources according to the energy value of the random access window, and sends an access window busy-idle indication to the access and mobility management function unit of the core network according to the busyness of the interface resources; the access and mobility management function unit receives the access window busy-idle indication sent by the base station, determines the default access group resources that should be used by the current base station according to the actual default access group resources of the current base station and the access resources of the regional base station, and sends an access window instruction to the base station according to the default access group resources that should be used; the base station receives the access window instruction sent by the access and mobility management function unit, and modifies the time-frequency resources of the default access group according to the access window instruction; the time-frequency resources of the default access group change in real time according to the energy value of the random access window, that is, the time-frequency resources of the default access group change in real time according to the number of access requests of the terminal, so that when a large number of terminals access, they can quickly access, improve the success rate and access efficiency of terminal access, and improve the utilization rate of interface resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural diagram of a base station partition provided by an embodiment of the present invention;

[0034] Figure 2 It is a structural diagram of a base station access resource grouping provided by an embodiment of the present invention;

[0035] Figure 3 It is a schematic diagram of the steps of a terminal access method applied to a base station provided by an embodiment of the present invention;

[0036] Figure 4It is a schematic flow chart of the steps of a terminal access method applied to an access and mobility management function unit provided by an embodiment of the present invention;

[0037] Figure 5 This is a flow chart of adding default access group resources provided by an embodiment of the present invention;

[0038] Figure 6 is a flow chart of reducing default access group resources provided by an embodiment of the present invention;

[0039] Figure 7 is a flow chart of managing dynamic access group resources provided by an embodiment of the present invention;

[0040] Figure 8 is a flow chart of a terminal accessing a dynamic access group provided by an embodiment of the present invention;

[0041] Fig. 9 is a structural block diagram of a terminal access device provided by an embodiment of the present invention;

[0042] Fig.10 It is a structural block diagram of a terminal access system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0043] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The step numbers in the following embodiments are only provided for the convenience of explanation and description, and the order between the steps is not limited in any way. The execution order of each step in the embodiment can be adaptively adjusted according to the understanding of those skilled in the art.

[0044] It should be noted that, although the functional module division is performed in the device schematic diagram and the logical order is shown in the flow chart, in some cases, the steps shown or described can be performed in a different order from the module division in the device or the order in the flow chart. The terms "first", "second", etc. in the specification and claims and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0046] Some technical terms in this embodiment are explained below.

[0047] AMF (Access and Mobility management Function) supports UEs with different mobility management requirements. It performs the following main tasks: Non-Access Stratum (NAS) signaling termination; NAS signaling security; Access Stratum security control; Core network node signaling for mobility between 3GPP access networks; Idle mode UE reachability (including control and execution of paging retransmissions); Registration area management; Support for intra-system and inter-system mobility; Access authentication; Access authorization, including roaming rights check; Mobility management control (subscription and policy); Support for network slicing; SMF selection.

[0048] The control plane data management function in the core network is mainly implemented by AMF, which is responsible for the following functions: (1) Network signaling: processing of network control plane signaling for terminal access and paging. It ensures the security of control plane data flow and is the termination point of 5G network signaling. (2) Security management: processing of authentication, authorization, and encryption for terminal access to the network. It performs access authentication and roaming authority checks on users, supports network security management and control, is responsible for registration area management, and is responsible for SMF selection. (3) Terminal mobility management: network paging is achieved by recording terminal location information and user network identification, and terminal registration data is managed. Positioning and tracking are achieved through full-process management of terminal mobility, and international roaming or roaming between different PLMNs is supported to provide support for terminal mobility within and outside the system. It manages terminal reachability in idle mode and controls and executes the sending of network paging. The functions of AMF not only fully cover the functions of the 4G network home location register and visitor register, but also support network slicing functions.

[0049] TAC (Tracking Area Code) is used to identify a geographical area in mobility management where terminal devices can register and update their locations. TAC is commonly used to divide tracking areas (TAs) in LTE and 5G networks.

[0050] In 5G networks, gNB (the next Generation Node B) refers to the base station.

[0051] SIB message (System Information Block) is a mechanism used to transmit system information in LTE network. SIB message is sent by base station, transmitted through PDSCH in common search space, and scrambled by SI-RNTI. The main purpose of SIB message is to provide information about cell configuration and operation parameters to user equipment (UE). SIB message is divided into several types, each type carries different information. The most important SIB is SIB1, because it not only contains the parameters for UE to access the cell, but also carries the scheduling information of other SIBs. If UE cannot parse SIB1, it cannot parse other SIBs. Common SIB types include: SIB1: carries the parameters for accessing the cell and the scheduling information of other SIBs; SIB2: contains URA ID information; SIB3: cell selection and reselection threshold parameters; SIB4: cell selection and reselection threshold parameters valid in connected state; SIB5: common channel configuration; SIB6: common channel configuration valid in connected state; SIB7: service access control parameters; SIB8 to SIB13: contain various specific system information, such as measurement control information, positioning information, etc. SIB messages are very important in LTE networks. They provide information about cell configuration, access parameters, reselection parameters, etc., to help UEs access and operate the network correctly. If the UE cannot correctly parse the SIB message, it will not be able to complete cell access and operation, affecting the network experience and data transmission efficiency.

[0052] If the UE wants to obtain services, it needs to register with the network. This registration process is called Attach. The core network Attach process is that the UE registers with the core network, obtains the core network's identity authentication for the UE, obtains the UE's IP address and core network resources, and establishes the UE's S1 connection context and NAS signaling context on the core network side.

[0053] The Service Request process can be triggered by the UE or 5GC, and is used to convert the UE in the control plane idle (CM-IDLE) state to the control plane connected (CM-CONNECTED) state, and restore the NAS signaling connection and data plane connection with the AMF. The user equipment (UE) is in the control plane idle (CM-IDLE) state. When there is downlink data to be transmitted to the UE, the ServiceRequest process is triggered; in the process, the session management function (SMF) notifies the access and mobility management function (AMF) that there is downlink data, and the AMF then evaluates and triggers the UE to initiate the Service Request. The UE in the CM-IDLE state initiates the service request process mainly to send uplink signaling messages, user data or respond to a network paging request. After receiving the service request information, the AMF can perform identity authentication; after establishing a signaling connection with the AMF, the UE or the network can send signaling messages, such as from the UE to the SMF, through the PDU session establishment of the AMF. The UE in the CM-CONNECTED state requests activation of the user plane of the PDU session and responds with a NAS notification message from the AMF; when the user plane connection of the PDU session is activated, the AS layer in the UE indicates it to the NAS layer.

[0054] See also Figure 1 and Figure 2 , TAC includes multiple base stations, such as TAC1 includes base station 1 and base station 2; the access resources of a base station are divided into two categories: default access group and dynamic access group, such as base station 1 includes a default access group and multiple dynamic access groups. The default access group can be dynamically modified by AMF; the dynamic access group is dynamically created, modified or deleted by AMF.

[0055] like Figure 3 As shown, an embodiment of the present invention provides a terminal access method, which is applied to a base station, and the interface resources of the base station include a default access group and a dynamic access group, including:

[0056] S110. Determine the busyness or idleness of the interface resources according to the energy value of the random access window, and send an access window busyness or idleness indication to the access and mobility management function unit of the core network according to the busyness or idleness; the energy value of the random access window is determined according to the access request of the terminal.

[0057] The energy value of the random access window is determined according to the number of access requests from the terminal. The more access requests from the terminal, the greater the energy value of the random access window. The energy value of the random access window is obtained through detection. The greater the energy value of the random access window, the busier the interface resources are, that is, the less sufficient the interface resources are. The smaller the energy value of the random access window, the idler the interface resources are, that is, the more sufficient the interface resources are. When the interface resources are busy to a certain extent, the corresponding access window busy-idle indication is access window overload; when the interface resources are idle to a certain extent, the corresponding access window busy-idle indication is access window idle.

[0058] It should be noted that the access request at this time includes a register / attach access request.

[0059] S120, receiving an access window instruction sent by the access and mobility management function unit, and modifying the time and frequency resources of the default access group according to the access window instruction; the access window instruction is determined according to the actual default access group resources of the current base station and the access resources of the regional base station.

[0060] The access window instruction carries the default access group resources that the current base station should use. The base station sends the access window busy-idle indication to the access and mobility management function unit of the core network according to the busyness; the access and mobility management function unit determines the access window instruction based on the actual default access group resources of the current base station and the access resources of the regional base station, and sends the access window instruction to the base station; the base station modifies the time-frequency resources of the default access group according to the access window instruction.

[0061] Optionally, the terminal access method applied to the base station further includes:

[0062] S130, receiving a create access window message sent by the access and mobility management function unit, and creating a dynamic access group according to the create access window message;

[0063] S140: Send scheduling information to the terminal and receive an access request from the terminal.

[0064] After the terminal accesses successfully, the base station receives the create access window message sent by the access and mobility management functional unit. The create access window message includes the size and period of the dynamic access group, and creates different dynamic access groups according to the create access window message to match access requests with different heights. After the dynamic access group is successfully created, the scheduling information is sent to the terminal, and the access request of the terminal is received.

[0065] Optionally, determining the busyness or idleness of the interface resource according to the energy value of the random access window includes:

[0066] S111, if the energy value of the random access window is greater than the first preset energy value for several consecutive times and no terminal access is successful, it is determined that the interface resource is in a busy state;

[0067] S112: If the energy value of the random access window is less than the second preset energy value for several consecutive times, and the actual default access group resources of the current base station are greater than the preset minimum default resource value, it is determined that the interface resources are in an idle state.

[0068] It should be noted that the number of times is determined according to actual application, and this embodiment does not impose any specific restrictions. The first preset energy value and the second preset energy value are determined according to actual application, and this embodiment does not impose any specific restrictions.

[0069] If the energy value of the random access window is greater than the first preset energy value for several consecutive times, and no terminal access is successful, it is determined that the interface resources are in a busy state; if the energy value of the random access window is less than the second preset energy value for several consecutive times, and the actual default access group resources of the current base station are greater than the preset minimum default resource value, it is determined that the interface resources are in an idle state. Among them, the busy state indicates that the interface resources of the default access group of the current base station are insufficient, and the idle state indicates that the interface resources of the default access group of the current base station have excess interface resources.

[0070] Optionally, the terminal access method applied to the base station further includes:

[0071] S150, broadcasting the modified time and frequency resources of the default access group to the terminal;

[0072] S160: Send resource modification completion information to the access and mobility management function unit.

[0073] If the base station successfully modifies the time and frequency resources of the default access group according to the access window instruction, it broadcasts the modified time and frequency resources of the default access group to the terminal and sends resource modification completion information to the access and mobility management function unit.

[0074] like Figure 4 As shown, an embodiment of the present invention provides a terminal access method, which is applied to an access and mobility management function unit of a core network, including:

[0075] S210, receiving an access window busy / idle indication sent by a base station, and determining the default access group resources to be used by the current base station according to the actual default access group resources of the current base station and the access resources of the regional base station;

[0076] S220: Send an access window instruction to the base station based on the use of default access group resources.

[0077] The access and mobility management functional unit of the core network receives the access window busy / idle indication sent by the base station. If the access window busy / idle indication is access window overload, it means that the actual default access group resources of the current base station are insufficient. The idle access resources of other base stations in the area are reallocated to the current base station to obtain the default access group resources that should be used by the current base station. If the access window busy / idle indication is access window idle, it means that the actual default access group resources of the current base station are idle. The spare resources of the current base station are reallocated to other base stations in the area to obtain the default access group resources that should be used by the current base station. An access window instruction is sent to the base station based on the default access group resources that should be used, that is, the access window instruction includes relevant parameters of the default access group resources that should be used by the current base station.

[0078] Optionally, the terminal access method applied to the access and mobility management function unit of the core network further includes:

[0079] S230: Determine the resource size and period of the dynamic access group according to the number of idle terminals in the area, and send a create access window message to the base station according to the resource size and period of the dynamic access group.

[0080] When the terminal is released, the access and mobility management function unit of the core network determines the resource size and period of the dynamic access group according to the number of idle terminals in the area, and then sends a create access window message to the base station according to the resource size and period of the dynamic access group.

[0081] Optionally, the terminal access method applied to the access and mobility management function unit of the core network further includes:

[0082] S240: Receive resource modification completion information or access window creation completion information sent by the terminal.

[0083] When the base station successfully modifies the time and frequency resources of the default access group according to the access window instruction, the base station sends resource modification completion information to the access and mobility management function unit, and the access and mobility management function unit receives the resource modification completion information sent by the terminal; when the base station completes the creation of the dynamic access window, it sends access window creation completion information to the access and mobility management function unit, and the access and mobility management function unit receives the access window creation completion information sent by the base station.

[0084] Implementation of the embodiments of the present invention includes the following beneficial effects: in this embodiment, the base station determines the busyness of the interface resources according to the energy value of the random access window, and sends an access window busy-idle indication to the access and mobility management function unit of the core network according to the busyness of the interface resources; the access and mobility management function unit receives the access window busy-idle indication sent by the base station, determines the default access group resources that should be used by the current base station according to the actual default access group resources of the current base station and the access resources of the regional base station, and sends an access window instruction to the base station according to the default access group resources that should be used; the base station receives the access window instruction sent by the access and mobility management function unit, and modifies the time-frequency resources of the default access group according to the access window instruction; the time-frequency resources of the default access group change in real time according to the energy value of the random access window, that is, the time-frequency resources of the default access group change in real time according to the number of access requests of the terminal, so that when a large number of terminals access, they can quickly access, improve the success rate and access efficiency of terminal access, and improve the utilization rate of interface resources.

[0085] The following describes the terminal access process with several specific embodiments.

[0086] Example 1, see Figure 5 , increase the interface resources of the default access group.

[0087] S11. The UE initiates register / attach access. The base station determines whether there are multiple UEs initiating random access through the energy value of the random access window. If it is detected that the energy value of the random access window is too large for multiple times but no UE successfully accesses, it can be considered that a collision has occurred, and the interface resources for increasing the default access group are insufficient.

[0088] S12. If the gNB determines that the access resources are insufficient, it initiates an access window overload indication to the AMF; the AMF dynamically determines the default access group resources that the current base station should use by judging the default access group resources of the current base station and the access resources of the neighboring base stations.

[0089] S13. AMF sends the default access group resources to the base station. The base station dynamically modifies the time and frequency resources of the access window according to the parameters carried in the command and allocates more time and frequency resources for access.

[0090] S14. gNB broadcasts the currently available default access group access resources through the sib message.

[0091] S15. gNB replies to AMF to complete resource modification.

[0092] Example 2, see Figure 6 , reduce the interface resources of the default access group.

[0093] S21. The base station determines whether there are multiple UEs initiating random access through the energy value of the random access window. If it is detected that the energy value of the random access window is continuously too low for multiple times, it can be considered that the access resources are idle, and the access resources are greater than the minimum default resource value. Then the base station initiates an access window idle indication to the AMF. The AMF dynamically determines the default access group resources that the current base station should use by judging the default access group resources of the current base station and the access resources of the neighboring base stations.

[0094] S22. AMF sends the default access group resources to the base station; the base station dynamically modifies the time and frequency resources of the access window according to the parameters carried in the command to reduce the time and frequency resources used for access.

[0095] S23. Broadcast the currently available default access group access resources through the sib message.

[0096] S24. gNB replies to AMF to complete resource modification.

[0097] Example 3, see Figure 7 , deregister / detach release process.

[0098] S31. When the UE initiates the release, the AMF determines the number of idle terminals within the TAC range, calculates the resource size and period to be used by the dynamic access group, and then sends a create access window message to the base station. The base station performs scheduling according to the corresponding parameters.

[0099] S32. After receiving the message and the local configuration takes effect, the base station initiates a message to create an access window to notify AMF that the configuration is successful.

[0100] Example 4, see Figure 8 , terminal dynamic access process.

[0101] S41. The UE upper layer application determines that there is an access requirement, and the UE specified a dynamic access group to be used for the next access when it was released last time. At this time, the UE will not initiate random access immediately, but wait for scheduling information.

[0102] S42. The MAC layer of the base station initiates a dynamic scheduling request corresponding to the dynamic access group, and allocates corresponding dynamic access resources in the base station.

[0103] S43. After receiving the scheduling information, the UE checks whether it is its own dynamic access group through matching. If it is, it initiates access; if not, it ignores this information.

[0104] The embodiment of the present invention ensures fast access when large-scale terminals access through a scheduling-based method. The core network participates in access control, and each base station has a default access group. When the terminal initiates register / attach, random access is performed through this access group. After successful access, when entering the idle state, the core network AMF determines the group used by the UE for the next random access based on the number of idle UEs in the TA. If the number of UEs in the used group reaches the maximum value, the AMF will dynamically create an access group and send signaling to the base station. The base station will reserve time and frequency resources for random access of the UE.

[0105] See also Fig. 9 , an embodiment of the present invention provides a terminal access device, including:

[0106] at least one processor;

[0107] at least one memory for storing at least one program;

[0108] When at least one program is executed by at least one processor, the at least one processor implements the above-mentioned terminal access method applied to the access and mobility management function unit of the base station or core network.

[0109] Among them, the memory, as a non-transient computer-readable storage medium, can be used to store non-transient software programs and non-transient computer executable programs. The memory may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some embodiments, the memory may optionally include a remote memory remotely arranged relative to the processor, and these remote memories may be connected to the processor via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0110] It can be seen that the contents of the above method embodiments are all applicable to the present device embodiments, the functions specifically implemented by the present device embodiments are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

[0111] In addition, the embodiment of the present application also discloses a computer program product or a computer program, and the computer program product or the computer program is stored in a computer-readable storage medium. The processor of the computer device can read the computer program from the computer-readable storage medium, and the processor executes the computer program, so that the computer device performs the above method. Similarly, the contents in the above method embodiment are all applicable to the storage medium embodiment, and the functions specifically implemented by the storage medium embodiment are the same as those in the above method embodiment, and the beneficial effects achieved are also the same as those achieved by the above method embodiment.

[0112] An embodiment of the present invention further provides a computer-readable storage medium, which stores a program executable by a processor. The program executable by the processor is used to implement the above method when executed by the processor.

[0113] It is understood that all or some steps and systems in the disclosed method above can be implemented as software, firmware, hardware and appropriate combinations thereof. Some physical components or all physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, and the computer-readable medium can include a computer storage medium (or a non-transitory medium) and a communication medium (or a temporary medium). As known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassette, magnetic tape, disk storage or other magnetic storage device, or any other medium that can be used to store desired information and can be accessed by a computer. Furthermore, it is well known to those skilled in the art that communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0114] See also Fig.10 The embodiment of the present invention provides a terminal access system, including a terminal, a base station and an access and mobility management functional unit of a core network; wherein,

[0115] A terminal, used to initiate an access request to a base station;

[0116] A base station, configured to execute the above-mentioned terminal access method applied to the base station;

[0117] The access and mobility management functional unit of the core network is used to execute the terminal access method applied to the access and mobility management functional unit of the core network.

[0118] Specifically, the terminal may be different types of electronic devices, including but not limited to mobile phones, tablet computers, smart bracelets, wearable devices, etc.

[0119] It can be seen that the contents of the above method embodiments are all applicable to the present system embodiments, the functions specifically implemented by the present system embodiments are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

[0120] It should be understood that in the present application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0121] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0122] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0123] The above is a specific description of the preferred implementation of the present invention, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A terminal access method, characterized in that: Applied to a base station, the interface resources of the base station include a default access group and a dynamic access group, including: Determine the busyness of the interface resource according to the energy value of the random access window, and send an access window busyness indication to the access and mobility management function unit of the core network according to the busyness; the energy value of the random access window is determined according to the access request of the terminal; Receive an access window instruction sent by an access and mobility management functional unit, and modify the time and frequency resources of the default access group according to the access window instruction; the access window instruction is determined according to the actual default access group resources of the current base station and the access resources of the regional base station.

2. The method according to claim 1, characterized in that The method further comprises: receiving a create access window message sent by the access and mobility management function unit, and creating a dynamic access group according to the create access window message; Send scheduling information to the terminal and receive an access request from the terminal.

3. The method according to claim 1, characterized in that The determining the busyness or idleness of the interface resource according to the energy value of the random access window includes: If the energy value of the random access window is greater than the first preset energy value for several consecutive times and no terminal access is successful, it is determined that the interface resource is in a busy state; If the energy value of the random access window is less than the second preset energy value for several consecutive times, and the actual default access group resources of the current base station are greater than the preset minimum default resource value, it is determined that the interface resources are in an idle state.

4. The method according to claim 1, characterized in that: The method further comprises: Broadcasting the modified time and frequency resources of the default access group to the terminal; Sending modification resource completion information to the access and mobility management function unit.

5. A terminal access method, characterized in that: Access and mobility management functional units applied to the core network include: Receiving the access window busy / idle indication sent by the base station, determining the default access group resources to be used by the current base station according to the actual default access group resources of the current base station and the access resources of the regional base station; According to the above, the default access group resources should be used to send an access window instruction to the base station.

6. The method according to claim 5, characterized in that The method further comprises: The resource size and period of the dynamic access group are determined according to the number of idle terminals in the area, and a create access window message is sent to the base station according to the resource size and period of the dynamic access group.

7. The method according to claim 6, characterized in that The method further comprises: The receiving terminal sends a resource modification completion message or an access window creation completion message.

8. A terminal access device, characterized in that: include: at least one processor; at least one memory for storing at least one program; When the at least one program is executed by the at least one processor, the at least one processor implements the method according to any one of claims 1 to 7.

9. A computer-readable storage medium storing a program executable by a processor, characterized in that: The processor-executable program is used to perform the method according to any one of claims 1 to 7 when executed by the processor.

10. A terminal access system, characterized in that: It includes access and mobility management functional units of terminals, base stations and core networks; among which, The terminal is used to initiate an access request to the base station; The base station is used to perform the method according to any one of claims 1 to 4; The access and mobility management functional unit of the core network is used to execute the method described in any one of claims 5-7.

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