Access control method and apparatus, terminal, and network device

1 . An access control method performed by a terminal, comprising:

receiving a first access control parameter, wherein the first access control parameter comprises a first set of access control parameters and a second set of access control parameters;

wherein the first access control parameter comprises an access-prohibition factor of access control, the first set of access control parameters comprises a first value of the access-prohibition factor of access control, and the second set of access control parameters comprises a second value of the access-prohibition factor of access control;

determining the first set of access control parameters is a second access control parameter when a preset condition is met;

determining the second set of access control parameters is the second access control parameter when the preset condition is not met; and

performing an access control-related operation according to the second access control parameter;

wherein the preset condition comprises:

an antenna quantity is less than 4, equal to 2, or equal to 1.

2 . The method according to claim 1 , wherein the first access control parameter is carried through at least one of the following: a physical broadcast channel (PBCH), a master information block (MIB), system information of a first system information block (SIB), extended system information, or a dedicated radio resource control (RRC) message, wherein

the first SIB is an SIB corresponding to a first type of terminal.

3 . The method according to claim 2 , wherein the extended system information comprises at least one of the following:

system information corresponding to a second type of terminal in a first SIB1, wherein the first SIB1 belongs to the first SIB;

system information corresponding to the second type of terminal in an SIBx, wherein x is an integer greater than 1, the SIBx belongs to a second SIB, and the second SIB is an SIB corresponding to the second type of terminal; or

system information corresponding to the second type of terminal in an SIBy, wherein y is an integer greater than 1, and the SIBy belongs to the first SIB.

4 . The method according to claim 3 , wherein the system information corresponding to the second type of terminal in the first SIB 1 is used for indicating any one of the following:

system information supporting the second type of terminal; or

system information allowing the second type of terminal to camp on or access.

5 . The method according to claim 3 , wherein the system information corresponding to the second type of terminal in the SIBx and the SIB y are used for indicating: system information required by a cell accessed or camped on by the second type of terminal.

6 . The method according to claim 3 , wherein the second type of terminal is a lightweight terminal.

7 . The method according to claim 1 , wherein the first access control parameter further comprises at least one of the following:

an access control category;

access control public land mobile network information;

a probability parameter of access control;

duration-related information of access control;

identification information corresponding to access control;

type information corresponding to access control;

access control level information;

a reason value for establishing a radio resource control (RRC) connection;

an access attempt category; or

event information corresponding to access control.

8 . The method according to claim 1 , wherein the performing an access control-related operation according to the second access control parameter comprises at least one of the following:

in a case of determining that a first cell is prohibited to be accessed according to the second access control parameter, performing a first operation; or

in a case of determining that the first cell is accessible according to the second access control parameter, performing a second operation, wherein

the first operation comprises at least one of the following:

not allowing to camp on the first cell;

prohibiting to access the first cell or prohibiting to access the first cell in a preset time;

not accessing the first cell or not allowing to perform an access attempt for the first cell; or

choosing or re-choosing a cell; and

the second operation comprises at least one of the following:

allowing to camp on the first cell;

not prohibiting to access the first cell;

allowing to access the first cell; or

allowing to perform an access attempt for the first cell.

9 . An access control method performed by a network device, comprising:

transmitting a first access control parameter, wherein the first access control parameter comprises a first set of access control parameters and a second set of access control parameters, wherein the first access control parameter comprises an access-prohibition factor of access control, the first set of access control parameters comprises a first value of the access-prohibition factor of access control, and the second set of access control parameters comprises a second value of the access-prohibition factor of access control; wherein

the first access control parameter is used for determining the first set of access control parameters is a second access control parameter when a preset condition is met, and determining the second set of access control parameters is the second access control parameter when the preset condition is not met, wherein

the preset condition comprises:

an antenna quantity is less than 4, equal to 2, or equal to 1.

10 . The method according to claim 9 , wherein the first access control parameter is carried through at least one of the following: a physical broadcast channel (PBCH), a master information block (MIB), system information of a first system information block (SIB), extended system information, or a dedicated RRC message, wherein

the first SIB is an SIB corresponding to a first type of terminal.

11 . The method according to claim 10 , wherein the extended system information comprises at least one of the following:

system information corresponding to a second type of terminal in a first SIB1, wherein the first SIB1 belongs to the first SIB;

system information corresponding to the second type of terminal in an SIBx, wherein x is an integer greater than 1, the SIBx belongs to a second SIB, and the second SIB is an SIB corresponding to the second type of terminal; or

system information corresponding to the second type of terminal in an SIBy, wherein y is an integer greater than 1, and the SIBy belongs to the first SIB.

12 . The method according to claim 11 , wherein the system information corresponding to the second type of terminal in the first SIB 1 is used for indicating any one of the following:

system information supporting the second type of terminal; or

system information allowing the second type of terminal to camp on or access.

13 . The method according to claim 11 , wherein the system information corresponding to the second type of terminal in the SIBx and the SIBy is used for indicating:

system information required by a cell accessed or camped on by the second type of terminal.

14 . The method according to claim 11 , wherein the second type of terminal is a lightweight terminal.

15 . A communication device, comprising:

a processor; and

a memory storing a program or instruction that is runnable on the processor, wherein the program or instruction, when executed by the processor, causes the communication device to perform the access control method according to claim 11 .

16 . The method according to claim 9 , wherein the first access control parameter further comprises at least one of the following:

an access control category;

access control public land mobile network information;

a probability parameter of access control;

duration-related information of access control;

identification information corresponding to access control;

type information corresponding to access control;

access control level information;

a reason value for establishing a radio resource control (RRC) connection;

an access attempt category; or

event information corresponding to access control.

17 . A communication device, comprising:

a processor; and

a memory storing a program or instruction that is runnable on the processor, wherein the program or instruction, when executed by the processor, causes the communication device to:

receive a first access control parameter, wherein the first access control parameter comprises a first set of access control parameters and a second set of access control parameters; wherein the first access control parameter comprises an access-prohibition factor of access control, the first set of access control parameters comprises a first value of the access-prohibition factor of access control, and the second set of access control parameters comprises a second value of the access-prohibition factor of access control;

determine the first set of access control parameters is a second access control parameter when a preset condition is met;

determine the second set of access control parameters is the second access control parameter when the preset condition is not met; and

perform an access control-related operation according to the second access control parameter;

wherein the preset condition comprises:

an antenna quantity is less than 4, equal to 2, or equal to 1.

18 . The communication device according to claim 17 , wherein the first access control parameter is carried through at least one of the following: a physical broadcast channel (PBCH), a master information block (MIB), system information of a first system information block (SIB), extended system information, or a dedicated radio resource control (RRC) message, wherein

the first SIB is an SIB corresponding to a first type of terminal.

19 . The communication device according to claim 18 , wherein the extended system information comprises at least one of the following:

system information corresponding to a second type of terminal in a first SIB1, wherein the first SIB1 belongs to the first SIB;

system information corresponding to the second type of terminal in an SIBx, wherein x is an integer greater than 1, the SIBx belongs to a second SIB, and the second SIB is an SIB corresponding to the second type of terminal; or

system information corresponding to the second type of terminal in an SIBy, wherein y is an integer greater than 1, and the SIBy belongs to the first SIB.

20 . The communication device according to claim 19 , wherein the system information corresponding to the second type of terminal in the first SIB1 is used for indicating any one of the following:

system information supporting the second type of terminal; or

system information allowing the second type of terminal to camp on or access.