CN112512098B - Cell access method, device and terminal - Google Patents

Cell access method, device and terminal Download PDF

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Publication number
CN112512098B
CN112512098B CN201910870258.XA CN201910870258A CN112512098B CN 112512098 B CN112512098 B CN 112512098B CN 201910870258 A CN201910870258 A CN 201910870258A CN 112512098 B CN112512098 B CN 112512098B
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Prior art keywords
terminal
cell
target cell
access
barring
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CN112512098A (en
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郝悦
童辉
李新
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention provides a cell access method, a cell access device and a terminal. The method comprises the following steps: acquiring a master information block MIB message sent by a target cell of a new air interface NR system; when the terminal is an independent networking SA terminal, if the cell forbidden parameter record in the MIB message is non-forbidden indication information, the target cell is judged to be non-forbidden access; and when the terminal is a non-independent network NSA terminal, if the cell barring parameter record in the MIB message is non-barring indication information, judging that the target cell is barred to access. By adopting the method, when the system message cellBarred parameter of the target cell is indicated as non-forbidden, the judgment of the cellBarred parameter by the NSA terminal and the SA terminal is different. By the method, the NSA terminal and the SA terminal can be accessed to the same 5G cell at the same time, and the purposes that the NSA resides in the anchor LTE cell and the SA resides in the NR cell are achieved.

Description

Cell access method, device and terminal
Technical Field
The present invention relates to the field of wireless technologies, and in particular, to a cell access method, an apparatus, and a terminal.
Background
In 5G current Network application, a 5G cell needs to support simultaneous access and initiation of a data service by a Non-Stand Alone (NSA) and Stand Alone (SA) networking dual-mode terminal, where the NSA terminal is configured to camp in an NSA LTE cell by searching for Long Term Evolution (LTE) system information, public Land Mobile Network (PLMN) selection, and cell selection, and the SA anchor point is configured to camp in an NR cell by searching for a New Radio (NR) system cell, PLMN selection, and cell selection of the NSA.
In an existing communication protocol, a cell barred field in a Master Information Block (MIB) message of a system message represents a cell barred parameter, and if a terminal reads that barred is forbidden, it indicates that the terminal is forbidden to camp on the cell, otherwise, camping is allowed.
Assuming that the cell barred configured by the NR-side system message MIB is non-forbidden notgarred, for a 5G cell with an NSA/SA dual-mode terminal, if the SA terminal receives the cell barred as notgarred in the access process, it indicates that the network side allows the SA terminal to camp on, and at the same time, after the NSA terminal camps on the LTE side, the NR-side MIB message needs to be read before adding an NR secondary carrier to determine whether to allow access, but at this time, since the cell barred is set as notgarred, the NSA terminal, if it reads the notgarred, will continue to read a System Information Block (SIB) type 1 on the NR side and camp on the NR cell, which is not in accordance with the original purpose that the NSA cell needs to camp on an LTE anchor, and cannot exert the advantage of better coverage performance of the LTE anchor.
Therefore, in the current protocol, under the configuration of the system message cellBarred, it is impossible to implement that the NSA terminal and the SA terminal access the same 5G cell at the same time, and implement that the NSA resides in the anchor LTE cell and the SA resides in the NR cell.
Disclosure of Invention
The technical scheme of the invention aims to provide a cell access method, a device and a terminal, which are used for solving the problems that the conventional technology cannot realize that an NSA terminal and an SA terminal access the same 5G cell at the same time under the configuration of a system message cell barred, and realize that the NSA terminal resides in an anchor LTE cell and the SA terminal resides in an NR cell.
The embodiment of the invention provides a cell access method, which is applied to a terminal, wherein the method comprises the following steps:
acquiring a master information block MIB message sent by a target cell of a new air interface NR system;
when the terminal is an independent networking SA terminal, if the cell barring parameter record in the MIB message is non-barring indication information, the target cell is judged to be non-barring access; and when the terminal is a non-independent network configuration (NSA) terminal, if the cell forbidden parameter record in the MIB message is non-forbidden indication information, determining that the target cell is forbidden to access.
Optionally, in the cell access method, when the terminal is a non-independent network configuration NSA terminal, the method further includes:
and if the cell barring parameter in the MIB message is recorded as non-barring indication information, giving up reading the system information block SIB type 1 in the NR system.
Optionally, the cell access method, where when the terminal is a non-independent network configuration, after determining that the target cell is prohibited from being accessed, the method further includes:
determining that the target cell is not a candidate cell that can be used for camping.
Optionally, the cell access method, where when the terminal is an independent networking SA terminal, after determining that the target cell is a non-prohibited access, the method further includes:
determining the target cell as a candidate cell which can be used for camping;
and accessing the target cell.
An embodiment of the present invention further provides a terminal, including a transceiver and a processor, where:
the transceiver is configured to: acquiring a master information block MIB message sent by a target cell of a new air interface NR system;
the processor is configured to: when the terminal is an independent networking SA terminal, if the cell barring parameter record in the MIB message is non-barring indication information, the target cell is judged to be non-barring access;
and when the terminal is a non-independent network configuration (NSA) terminal, if the cell barring parameter record in the MIB message is non-barring indication information, the terminal is used for judging that the target cell is barred to be accessed.
Optionally, the terminal, wherein when the terminal is a non-independent networking NSA terminal, the processor is further configured to:
and if the cell barring parameter record in the MIB message is non-barring indication information, giving up reading the system information block SIB type 1 in the NR system.
Optionally, when the terminal is an dependent non-ad hoc network NSA terminal, after determining that the target cell is prohibited from accessing, the processor is further configured to:
determining that the target cell is not a candidate cell that can be used for camping.
Optionally, the terminal, where when the terminal is an independent networking SA terminal, after determining that the target cell is a non-prohibited access, the processor is further configured to:
determining the target cell as a candidate cell which can be used for camping;
and accessing the target cell.
The embodiment of the invention also provides a cell access device, which is applied to a terminal, wherein the device comprises:
the information acquisition module is used for acquiring a master information block MIB message sent by a target cell of the new air interface NR system;
a processing module to: when the terminal is an independent networking SA terminal, if the cell forbidden parameter record in the MIB message is non-forbidden indication information, the target cell is judged to be non-forbidden access; and when the terminal is a non-independent network configuration (NSA) terminal, if the cell forbidden parameter record in the MIB message is non-forbidden indication information, determining that the target cell is forbidden to access.
Optionally, in the cell access device, when the terminal is an dependent network architecture NSA terminal, the processing module is further configured to:
and if the cell barring parameter record in the MIB message is non-barring indication information, giving up reading the system information block SIB type 1 in the NR system.
Optionally, in the cell access device, when the terminal is an dependent non-ad hoc network NSA terminal, after determining that the target cell is prohibited from being accessed, the processing module is further configured to:
determining that the target cell is not a candidate cell that can be used for camping.
Optionally, the cell access apparatus, where when the terminal is an independent networking SA terminal, after determining that the target cell is a non-prohibited access, the processing module is further configured to:
determining the target cell as a candidate cell which can be used for camping;
and accessing the target cell.
An embodiment of the present invention further provides a terminal, where the terminal includes: a processor, a memory and a program stored on the memory and executable on the processor, the program when executed by the processor implementing the cell access method as claimed in any one of the preceding claims.
An embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and the computer program, when executed by a processor, implements the steps in the cell access method according to any of the above.
At least one of the above technical solutions of the present invention has the following beneficial effects:
by adopting the cell access method of the embodiment of the invention, when the system message cellBarred parameter of the target cell is indicated as non-forbidden, the judgment of the cell barred parameter by the NSA terminal and the SA terminal is different. By the method, the NSA terminal and the SA terminal can access the same 5G cell at the same time, and the purposes that the NSA resides in the anchor LTE cell and the SA resides in the NR cell are achieved.
Drawings
Fig. 1 is a schematic flowchart of a cell access method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of one embodiment of the terminal according to the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a cell access apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another implementation of the terminal according to the embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
In order to solve the problem that the NSA terminal and the SA terminal cannot access the same 5G cell simultaneously and the problem that the NSA terminal resides in an anchor LTE cell and the SA resides in an NR cell in the conventional technology under the configuration of the system message cellBarred, the embodiment of the invention provides a cell access method.
Specifically, an embodiment of the present invention provides a cell access method, which is applied to a terminal, and as shown in fig. 1, the method includes:
s110, acquiring a Master Information Block (MIB) message sent by a target cell of a new air interface NR system;
s120, when the terminal is an independent networking SA terminal, if the cell barring parameter record in the MIB message is non-barring indication information, the target cell is judged to be non-barring access; and when the terminal is a non-independent network configuration (NSA) terminal, if the cell barring parameter record in the MIB message is non-barring indication information, judging that the target cell is barred to access.
Through the cell access method of the embodiment, when the target cell sets the cell barred parameter in the MIB message as the non-barred indication information, and allows the terminal in the target cell to access and implement camping, for the SA terminal receiving the MIB message, according to the cell barred parameter, it is determined that the target cell is non-barred to enable the target cell to be a candidate cell for cell selection, and further camp in the target cell; and for the NSA terminal receiving the MIB message, judging that the target cell is forbidden to be accessed according to the cellBarred parameter so as to keep the LTE cell resident and continuously finish the processes of auxiliary carrier addition and random access.
Therefore, by adopting the cell access method of the embodiment of the invention, when the cellBarred parameter of the system message is indicated as non-forbidden, the terminals in different modes have different judgments on the cellBarred parameter, so that the NSA terminal and the SA terminal can be ensured to be simultaneously accessed into the same 5G cell, the NSA terminal is resided in the anchor LTE cell, and the SA is resided in the NR cell.
It should be noted that the main process involved from the terminal being powered on to the cell being camped on includes: frequency point scanning and downlink synchronization, system information reading, PLMN selection, cell selection and reselection, location area registration and the like. The frequency point scanning and downlink synchronization mainly relate to a physical layer process, and the process related to a high layer mainly comprises the following steps: system information reading, PLMN selection, cell selection and reselection and location area registration. The System Information mainly provides cell-level configuration Information for a terminal, so that the terminal can perform operations such as cell selection and cell reselection, and the System Information (SI) is divided into two parts, namely Minimum System Information (Minimum SI) and Other System Information (Other SI), and the Minimum System Information uses two different messages (master Information block: MIB and System Information block type 1.
Specifically, at least a portion of the minimum system information is to be broadcast by the cell in which each terminal UE may camp. For the cell/carrier frequency where the terminal UE can camp, the UE is not required to acquire the minimum system information of the current cell/carrier frequency from other cells/carrier frequencies. If the UE cannot obtain all the minimum system information for a cell (including valid system information received from the cell or previously stored for the cell), the UE may determine that the cell is barred.
And when the cellBarred parameter of the master information block MIB message sent by the target cell is the non-forbidden indication information, indicating that the target cell is allowed to reside.
By adopting the cell access method of the embodiment of the invention, for the SA terminal, after the SA terminal is started, in the process of accessing the cell, the scanning of the frequency point and the cell search and downlink synchronization are sequentially executed, wherein the process includes the process of reading the master information block MIB message sent by the target cell, when the cell barred parameter in the obtained master information block MIB message is the non-barred indication information, the SA terminal determines that the target cell is the non-barred access, determines that the target cell is a candidate cell which can be used for residing, that is, executes the steps S110 and S120.
Further, the process of cell search and downlink synchronization further includes:
reading a system information block SIB type 1, and performing PLMN selection and cell selection to access and reside in a target cell.
Through the above process, in the MIB message of the master information block sent by the target cell of the NA system, the SA terminal can camp on the NR cell when the cell barred parameter is the non-barring indication information.
With the cell access method according to the embodiment of the present invention, for the NSA terminal, when the cell barred parameter is the non-barred indication information in the MIB message of the master information block acquired in step S110, the NSA terminal determines that the target cell is barred for access; further, the method further comprises:
if the cell barring parameter record in the MIB message is non-barring indication information, giving up reading a system information block SIB type 1 in the NR system; and
determining that the target cell is not a candidate cell that can be used for camping.
Specifically, after the NSA terminal is powered on, camping is implemented from the anchor LTE side, and in the process of adding the NR subcarrier, an NR system message MIB needs to be read to determine whether the target cell allows access. When the cell barred parameter in the MIB message is the non-barred indication information, if the NSA terminal reads the cell barred parameter as the non-barred indication, the NSA terminal will continue to read the SIB1 at the NR system side and reside in the NR cell, which is not compatible with the original purpose that the NSA terminal needs to reside in the LTE anchor, and cannot take advantage of better coverage performance of the LTE anchor, and cannot realize a scenario that the NSA resides in the anchor LTE cell and the SA resides in the NR cell. When the cell barred parameter in the MIB message is the non-barred indication information, the NSA terminal reads the cell barred parameter as the barred indication, that is, determines that the target cell is barred for access.
On this basis, the NSA terminal does not continue to read the SIB1 message on the NR side to keep the LTE cell camped, and then continues to complete the secondary carrier addition and random access procedure to enable access to the 5G cell.
Therefore, by adopting the cell access method of the embodiment of the invention, after the NSA terminal resides in the anchor LTE cell, the terminal does not take the NR cell as a candidate cell but resides in the anchor LTE cell in the cell selection process.
When the system message cellBarred parameter of the target cell is indicated as non-barred, the decision of the NSA terminal and the SA terminal on the cellBarred parameter is different. By the method, the NSA terminal and the SA terminal can be accessed to the same 5G cell at the same time, and the purposes that the NSA resides in the anchor LTE cell and the SA resides in the NR cell are achieved.
An embodiment of the present invention further provides a terminal, as shown in fig. 2, the terminal includes a transceiver 210 and a processor 220, where:
the transceiver 210 is configured to: acquiring a master information block MIB message sent by a target cell of a new air interface NR system;
the processor 220 is configured to: when the terminal is an independent networking SA terminal, if the cell barring parameter record in the MIB message is non-barring indication information, the target cell is judged to be non-barring access;
and when the terminal is a non-independent network configuration (NSA) terminal, if the cell forbidden parameter record in the MIB message is non-forbidden indication information, judging that the target cell is forbidden to access.
According to the terminal provided by the embodiment of the invention, when the cellBarred parameter of the system message is indicated to be non-forbidden, the judgment of the cellBarred parameter by the NSA terminal and the SA terminal is different, so that the NSA terminal and the SA terminal can be ensured to be simultaneously accessed to the same 5G cell, the NSA terminal is resided in the anchor LTE cell, and the SA is resided in the NR cell.
Optionally, the terminal, where the terminal is a non-standalone networking NSA terminal, the processor 220 is further configured to:
and if the cell barring parameter record in the MIB message is non-barring indication information, the NR system is abandoned to read the system information block SIB type 1.
Optionally, in the terminal, when the terminal is a non-independent network group NSA terminal, after determining that the target cell is prohibited from accessing, the processor 220 is further configured to:
determining that the target cell is not a candidate cell that can be used for camping.
Optionally, the terminal, where, when the terminal is an independent networking SA terminal, after determining that the target cell is a non-prohibited access, the processor 220 is further configured to:
determining the target cell as a candidate cell which can be used for camping;
and accessing the target cell.
An embodiment of the present invention further provides a cell access apparatus, which is applied to a terminal, and as shown in fig. 3, the apparatus includes:
an information obtaining module 310, configured to obtain a master information block MIB message sent by a target cell of a new air interface NR system;
a processing module 320 configured to: when the terminal is an independent networking SA terminal, if the cell forbidden parameter record in the MIB message is non-forbidden indication information, the target cell is judged to be non-forbidden access; and when the terminal is a non-independent network configuration (NSA) terminal, if the cell forbidden parameter record in the MIB message is non-forbidden indication information, determining that the target cell is forbidden to access.
Optionally, in the cell access apparatus, when the terminal is a non-independent network configuration NSA terminal, the processing module 320 is further configured to:
and if the cell barring parameter record in the MIB message is non-barring indication information, giving up reading the system information block SIB type 1 in the NR system.
Optionally, in the cell access apparatus, when the terminal is a non-independent network configuration NSA terminal, after determining that the target cell is prohibited to be accessed, the processing module 320 is further configured to:
determining that the target cell is not a candidate cell that can be used for camping.
Optionally, in the cell access apparatus, when the terminal is an independent networking SA terminal, after determining that the target cell is a non-prohibited access, the processing module 320 is further configured to:
determining the target cell as a candidate cell capable of being used for camping;
and accessing the target cell.
Another aspect of the embodiments of the present invention further provides a terminal, as shown in fig. 4, including: a processor 401; and a memory 403 connected to the processor 401 through a bus interface 402, wherein the memory 403 is used for storing programs and data used by the processor 401 in executing operations, and the processor 401 calls and executes the programs and data stored in the memory 403.
The transceiver 404 is connected to the bus interface 402, and is configured to receive and transmit data under the control of the processor 401, and specifically, the processor 401 is configured to read a program in the memory 403 and execute the following processes:
acquiring a master information block MIB message sent by a target cell of a new air interface NR system;
when the terminal is an independent networking SA terminal, if the cell barring parameter record in the MIB message is non-barring indication information, the target cell is judged to be non-barring access; and when the terminal is a non-independent network configuration (NSA) terminal, if the cell barring parameter record in the MIB message is non-barring indication information, judging that the target cell is barred to access.
Optionally, the terminal, where the terminal is a non-independent networking NSA terminal, the processor 401 is further configured to:
and if the cell barring parameter in the MIB message is recorded as non-barring indication information, giving up reading the system information block SIB type 1 in the NR system.
Optionally, in the terminal, when the terminal is a non-independent network group NSA terminal, after determining that the target cell is prohibited from accessing, the processor 401 is further configured to:
determining that the target cell is not a candidate cell that can be used for camping.
Optionally, the terminal, where, when the terminal is an independent networking SA terminal, after determining that the target cell is a non-prohibited access, the processor 401 is further configured to:
determining the target cell as a candidate cell which can be used for camping;
and accessing the target cell.
It should be noted that in fig. 4, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 401 and various circuits of memory represented by memory 403 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 404 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. For different terminals, the user interface 405 may also be an interface capable of interfacing with a desired device, including but not limited to a keypad, display, speaker, microphone, joystick, etc. The processor 401 is responsible for managing the bus architecture and general processing, and the memory 403 may store data used by the processor 401 in performing operations.
Those skilled in the art will understand that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program includes instructions for executing part or all of the steps of the above methods; and the program may be stored in a readable storage medium, which may be any form of storage medium.
In addition, a computer-readable storage medium is provided, on which a computer program is stored, where the program is executed by a processor to implement the steps in the cell access method as described in any one of the above.
In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately and physically included, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the transceiving method according to various embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims (11)

1. A cell access method is applied to a terminal, and is characterized in that the method comprises the following steps:
acquiring a master information block MIB message sent by a target cell of a new air interface NR system;
when the terminal is an independent networking SA terminal, if the cell barring parameter record in the MIB message is non-barring indication information, the target cell is judged to be non-barring access; and when the terminal is a non-independent network configuration (NSA) terminal, if the cell forbidden parameter record in the MIB message is non-forbidden indication information, determining that the target cell is forbidden to access.
2. The cell access method according to claim 1, wherein when the terminal is a non-standalone network, NSA, terminal, the method further comprises:
and if the cell barring parameter record in the MIB message is non-barring indication information, the NR system is abandoned to read the system information block SIB type 1.
3. The cell access method according to claim 1 or 2, wherein when the terminal is a non-independent network NSA terminal, after determining that the target cell is an access barring terminal, the method further comprises:
determining that the target cell is not a candidate cell that can be used for camping.
4. The cell access method according to claim 1, wherein when the terminal is an SA terminal, after determining that the target cell is a non-barred access, the method further comprises:
determining the target cell as a candidate cell which can be used for camping;
and accessing the target cell.
5. A terminal comprising a transceiver and a processor, characterized in that:
the transceiver is configured to: acquiring a master information block MIB message sent by a target cell of a new air interface NR system;
the processor is configured to: when the terminal is an independent networking SA terminal, if the cell forbidden parameter record in the MIB message is non-forbidden indication information, judging that the target cell is non-forbidden access;
and when the terminal is a non-independent network configuration (NSA) terminal, if the cell barring parameter record in the MIB message is non-barring indication information, the terminal is used for judging that the target cell is barred to be accessed.
6. The terminal of claim 5, wherein when the terminal is a non-standalone networking, NSA, terminal, the processor is further configured to:
and if the cell barring parameter record in the MIB message is non-barring indication information, the NR system is abandoned to read the system information block SIB type 1.
7. The terminal according to claim 5 or 6, wherein when the terminal is a non-standalone network, NSA, terminal, after determining that the target cell is forbidden access, the processor is further configured to:
determining that the target cell is not a candidate cell that can be used for camping.
8. The terminal of claim 5, wherein when the terminal is an independent networking SA terminal, after determining that the target cell is a non-barred access, the processor is further configured to:
determining the target cell as a candidate cell which can be used for camping;
and accessing the target cell.
9. A cell access device applied to a terminal, the device comprising:
the information acquisition module is used for acquiring a master information block MIB message sent by a target cell of the new air interface NR system;
a processing module to: when the terminal is an independent networking SA terminal, if the cell barring parameter record in the MIB message is non-barring indication information, the target cell is judged to be non-barring access; and when the terminal is a non-independent network configuration (NSA) terminal, if the cell barring parameter record in the MIB message is non-barring indication information, judging that the target cell is barred to access.
10. A terminal, comprising: a processor, a memory and a program stored on the memory and executable on the processor, the program, when executed by the processor, implementing the cell access method of any of claims 1 to 4.
11. A computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the cell access method according to any one of claims 1 to 4.
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