CN108574973B

CN108574973B - Access control method, device and system

Info

Publication number: CN108574973B
Application number: CN201710136344.9A
Authority: CN
Inventors: 刘旭; 戴博; 戴谦; 沙秀斌
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2017-03-08
Filing date: 2017-03-08
Publication date: 2022-07-15
Anticipated expiration: 2037-03-08
Also published as: CN115022941A; CN115022941B; WO2018161703A1; CN108574973A

Abstract

The application discloses a method, a device and a system for access control; the access control method comprises the following steps: the base station configures access control configuration information, wherein the access control configuration information comprises configuration information of CEL of a serving cell of the base station; the base station transmits access control configuration information to the terminal. The method and the device can make full use of system resources by effectively configuring the access control configuration information.

Description

Access control method, device and system

Technical Field

The present invention relates to wireless communication technologies, and in particular, to a method, an apparatus, and a system for access control.

Background

The rapid development of mobile internet, internet of things and other business applications has become a major driving force for the development of fifth generation mobile communication technology (5G). They urgently require 5G to have access rates comparable to optical fiber, billions of devices' connectivity, a perfect real-time experience, and wireless broadband access capabilities anywhere and anytime. In addition, important indexes such as energy consumption efficiency, spectral efficiency and peak rate also need to be comprehensively considered in the design of the 5G system. China has established the IMT-2020(5G) push group in 2013 to drive the development of 5G technology. According to the international global situation, a 5G vision, key capacity requirements and spectrum planning are formed in 2015; the 5G standardization work will then be initiated and is scheduled to begin business after 2020. In terms of international standards, the technical standard of LTE-a (LTE-Advanced, long term evolution, Advanced) is mainly formulated by the 3GPP (Third Generation Partnership Project) international organization for standardization. It was initially believed that 5G-oriented standard research work will be initiated at the 3GPP R14 stage.

In future mobile network applications, the traffic demand, the number of terminals and the types of terminals will all show explosive growth trend. In the MTC (Machine Type Communication) topic, a sub-topic of research on the NarrowBand Internet of Things (NB-IoT) is proposed for the characteristics of low-cost and low-throughput Type terminals, that is, a 200 kilohertz (kHZ) frequency band is used to provide low-throughput wireless Communication services for NB-IoT low-cost terminals. Due to the number and the variety of the terminals, how the NB-IoT system performs access control is a problem to be solved, so as to improve the utilization efficiency of system resources.

Disclosure of Invention

The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

The embodiment of the application provides an access control method, device and system, which can make full use of system resources by effectively configuring access control configuration information.

In a first aspect, an embodiment of the present application provides an access control method, including:

a base station configuring access control configuration information, wherein the access control configuration information includes configuration information of a coverage level (CEL) of a serving cell of the base station;

And the base station transmits the access control configuration information to a terminal.

The base station configures access control configuration information, which may include at least one of:

adding CEL of the serving cell as an access control parameter, and configuring cooperative use information with one or more access control parameters except CEL;

adding CEL of the service cell as a reference, and configuring access control parameter information of corresponding access type AC for each CEL grade;

increasing access class information mapped by a combination of at least two access control parameters of the serving cell, wherein the access control parameters at least include: and (5) CEL.

Wherein the access control configuration information may further include: access control configuration information of one or more neighbor cells of the serving cell.

Wherein, the base station configuring the access control configuration information may further include: and configuring the access control configuration information of one or more adjacent cells according to the minimum overhead.

Wherein the access control configuration information configuring one or more neighboring cells according to the minimum overhead may include one of:

configuring configuration information of one or more access control parameters of one or more neighbor cells;

And configuring one or more adjacent cells to carry out access control according to the coverage capability supported by the terminal.

The transmitting, by the base station, the access control configuration information to the terminal may include:

when the base station is in a preset scene, the base station transmits the access control configuration information of the adjacent cell; wherein the predetermined scenario includes at least one of:

the loads of a predetermined number of neighbor cells of the serving cell all exceed a threshold;

the preset number of adjacent cells limit the access to one or more access-type terminals;

a predetermined number of neighbor cells restrict access to one or more low priority terminals.

Wherein the serving cell may be in a joint area with at least one neighbor cell;

the base station configuring access control configuration information may include:

the base station acquires access control configuration information of each adjacent cell in the combined area, and configures the combined access control configuration information of each cell in the combined area;

the base station transmitting the access control configuration information to the terminal may include:

and the base station transmits the joint access control configuration information of each cell in the joint area, wherein each adjacent cell in the joint area does not independently transmit the respective access control configuration information.

Wherein, the base station transmitting the access control configuration information to the terminal may include at least one of:

broadcasting the access control configuration information through a system message;

the access control configuration information is carried by Radio Resource Control (RRC) signaling or by downlink data packets.

In a second aspect, an embodiment of the present application provides an access control method, including:

a terminal receives access control configuration information transmitted by a base station; wherein the access control configuration information comprises configuration information of CELs of a serving cell of the base station;

and the terminal performs access control processing according to the access control configuration information.

Wherein the access control configuration information may include at least one of: the CEL of the serving cell is used as the cooperative use information of the access control parameters and one or more access control parameters except the CEL; the CEL of the service cell is taken as a reference to configure the access control parameter information of the corresponding access class AC for each CEL grade; access class information mapped by a combination of at least two access control parameters of the serving cell, wherein the access control parameters at least include: and (7) CEL.

The performing, by the terminal, access control processing according to the access control configuration information may include:

the terminal determines the information of at least one access control parameter of the terminal;

and performing access control check according to the information of at least one access control parameter of the mobile terminal and the access control configuration information of the serving cell, wherein the access control parameter comprises at least one of the following parameters: CEL, AC, traffic type.

The receiving, by the terminal, the access control configuration information transmitted by the base station may include:

when the terminal is in an RRC idle state, receiving a system message which is broadcasted by the base station and carries the access control configuration information;

and when the terminal is in an RRC connection state, receiving an RRC signaling or a downlink data packet which is transmitted by the base station and carries the access control configuration information.

When the terminal is in an RRC idle state and receives the system message carrying the access control configuration information and broadcasted by the base station, the terminal performs access control processing according to the access control configuration information, which may include:

The terminal performs cell access control check during cell selection or reselection according to the access control configuration information, and determines a cell set allowing the terminal to access; and carrying out quality measurement on each cell in the cell set so as to determine the cell to be accessed.

When the terminal is in an RRC connected state and receives an RRC signaling or a downlink data packet that is transmitted by the base station and carries the access control configuration information, the terminal performs access control processing according to the access control configuration information, which may include:

the terminal completes RRC connection release and redirects to the cell indicated by the access control configuration information according to the access control configuration information; or, switching to an RRC idle state according to the access control configuration information, and performing cell reselection in the RRC idle state according to the access control configuration information.

In a third aspect, an embodiment of the present application provides an access control apparatus, which is applied to a base station, and includes:

a first processing module configured to configure access control configuration information, wherein the access control configuration information includes configuration information of CELs of a serving cell of the base station;

And the first transmission module is used for transmitting the access control configuration information to the terminal.

Wherein the first processing module may be configured to configure the access control configuration information by at least one of:

Wherein the first transmission module may be configured to transmit the access control configuration information to a terminal by at least one of:

and carrying the access control configuration information through RRC signaling or through a downlink data packet.

In a fourth aspect, an embodiment of the present application provides an access control apparatus, which is applied to a terminal, and includes:

A second transmission module, configured to receive access control configuration information transmitted by a base station; wherein the access control configuration information comprises configuration information of CELs of a serving cell of the base station;

and the second processing module is used for performing access control processing according to the access control configuration information.

Wherein the access control configuration information may include at least one of: the CEL of the serving cell is used as the cooperative use information of the access control parameters and one or more access control parameters except the CEL; the CEL of the service cell is taken as a reference to provide access control parameter information of corresponding access type AC configured for each CEL level; access class information mapped by a combination of at least two access control parameters of the serving cell, wherein the access control parameters at least include: and (7) CEL.

The second transmission module may be configured to receive access control configuration information transmitted by a base station by:

The second processing module may be configured to perform access control processing according to the access control configuration information in the following manner when the terminal is in an RRC idle state and the second transmission module receives the system message carrying the access control configuration information and broadcasted by the base station:

according to the access control configuration information, cell access control check is carried out during cell selection or reselection, and a cell set allowing a terminal to access is determined; performing quality measurement on each cell in the cell set to determine a cell to be accessed;

the second processing module may be further configured to, when the terminal is in an RRC connected state and the second transmission module receives an RRC signaling or a downlink data packet that is transmitted by the base station and carries the access control configuration information, perform access control processing according to the access control configuration information in the following manner:

according to the access control configuration information, completing RRC connection release and redirecting to a cell indicated by the access control configuration information; or, switching to an RRC idle state according to the access control configuration information, and performing cell reselection in the RRC idle state according to the access control configuration information.

In a fifth aspect, an embodiment of the present application provides an access control system, which includes the base station in the third aspect and the terminal in the fourth aspect.

Furthermore, an embodiment of the present application further provides a computer-readable storage medium, which stores computer-executable instructions, and when executed by a processor, the computer-executable instructions implement the method for access control according to the first aspect or the second aspect.

In this embodiment of the present application, the access control configuration information is configured effectively, and the access control configuration information includes: configuration information of a coverage level (CEL) of a serving cell, thereby enabling system resources to be fully utilized.

In some implementation manners, by configuring and transmitting access control configuration information of a neighboring cell of a serving cell, a terminal reduces unnecessary quality measurement of the neighboring cell and avoids frequent cell reselection, thereby achieving the purposes of saving power consumption and reducing access delay.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the claimed subject matter and are incorporated in and constitute a part of this specification, illustrate embodiments of the subject matter and together with the description serve to explain the principles of the subject matter and not to limit the subject matter.

Fig. 1 is a schematic diagram of an access control procedure in an LTE system;

fig. 2 is a flowchart of a method for access control at a base station side according to an embodiment of the present application;

fig. 3 is a flowchart of a method for controlling access at a terminal according to an embodiment of the present disclosure;

fig. 4 is a schematic diagram of an apparatus for access control at a base station side according to an embodiment of the present application;

fig. 5 is a schematic diagram of an apparatus for access control at a terminal according to an embodiment of the present application;

fig. 6 is a hardware diagram of a base station implementing a method for access control according to an embodiment of the present disclosure;

fig. 7 is a hardware schematic diagram of a terminal implementing a method for access control according to an embodiment of the present application.

Detailed Description

The embodiments of the present application will be described in detail below with reference to the accompanying drawings, and it should be understood that the embodiments described below are only for illustrating and explaining the present application and are not intended to limit the present application. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.

In the LTE system, in order to ensure Quality of Service (QoS) of a serving terminal in a cell and timely access of a high-priority terminal, the system needs to have an access control scheme. For example, when the system capacity reaches a preset threshold, access control is required for a terminal that newly initiates an access request. If the access priority of the terminal is lower, the system forbids the access; if the priority of the terminal is higher, the system can redirect the terminal to a low-load cell, or release the connection of the terminal with low priority in the cell or the terminal with poor signal coverage, and can indicate the reason for releasing the connection in the release connection signaling and guide the terminal to access to other suitable cells, and then ensure the access of the terminal with higher priority.

Fig. 1 is a schematic diagram illustrating an access control procedure in an LTE system. As shown in fig. 1, the base station configures access control configuration information of the local cell and broadcasts the access control configuration information in the cell. After receiving the broadcast message, the terminal in the RRC idle state first checks whether its own Access Class (AC, Access Class) allows Access, and if the Access is allowed, the terminal will reside in the cell and initiate random Access at a required time; if the access is limited, the terminal performs cell quality measurement to perform cell reselection until an accessible cell is found. After reselecting a cell with better quality, the terminal receives the access control configuration information of the cell, checks whether the access class of the terminal allows access, and if the access is allowed, the terminal resides in the cell and initiates random access at a required time; and if the access is limited, the terminal performs cell quality measurement and continues to perform cell reselection.

The base station may broadcast Access Barring-parameter Information (Access Barring-parameter) of the cell to the terminal through a System Information Block (SIB) message, and the terminal detects the Access Barring-parameter Information according to its own AC, thereby completing the determination of Access Barring. However, in the current protocol version, access control for the coverage level of the terminal is not included in the access control configuration information of the own cell, and system resources can be effectively used if the coverage level problem can be considered. Moreover, in the current protocol version, only the access control configuration information of the local cell is configured, and the access control configuration information of the neighboring cell is not configured, which may cause a situation that the cell is not allowed to be accessed after being reselected to a certain neighboring cell after the measurement of the local cell and the neighboring cell is completed when the terminal performs cell reselection, which may cause unnecessary quality measurement of the neighboring cell, increase power consumption of the terminal, and also affect access delay. If the access control configuration information of some neighboring cells can be configured when the access control configuration information of the cell is configured, unnecessary quality measurement of the neighboring cells can be reduced and frequent cell reselection can be avoided.

The embodiment of the application provides an access control method, device and system, which can make full use of system resources by effectively configuring access control configuration information; moreover, by configuring and transmitting the access control configuration information of the adjacent cell in the cell, the terminal reduces unnecessary quality measurement of the adjacent cell and avoids frequent cell reselection, thereby saving power consumption and reducing access delay.

As shown in fig. 2, an embodiment of the present application provides an access control method, including:

step 201, a base station configures access control configuration information, wherein the access control configuration information includes configuration information of a Coverage Level (CEL) of a serving cell of the base station;

step 202, the base station transmits access control configuration information to the terminal.

Wherein, step 201 may include at least one of:

adding CEL of a service cell as an access control parameter, and configuring the cooperative use information of one or more access control parameters except the CEL;

adding CEL of a service cell as a reference, and configuring corresponding AC access control parameter information for each CEL grade;

increasing access grade information mapped by a combination of at least two access control parameters of a serving cell, wherein the access control parameters at least comprise: and (5) CEL.

In an exemplary embodiment, the base station adds the CEL of the serving cell as an access control parameter and configures the co-usage information with other access control parameters (e.g., AC or traffic type). For example, the base station may broadcast access control information for CEL in addition to access control information for Access Class (AC). The correspondence between the AC and the access class (priority) may be broadcast by the base station through a system message, and the access priority corresponding to a high AC value is lower. The terminal may perform access control checks based on the CEL and the AC. For example, the terminal may be restricted from accessing the serving cell only when the information of at least one of the CEL and the AC of the terminal is restricted from accessing the serving cell.

In an exemplary embodiment, the base station adds access control parameter information configuring a corresponding AC for each CEL level with the CEL of the serving cell as a reference. For example, the access control configuration information of the serving cell configured by the base station may include: restricted access above AC15 of CEL0 rating; limited access above AC10 of CEL1 rating; restricted access above AC5 of CEL2 rating; restricted access below AC5 of CEL3 rating; at this time, after the terminal has measured its own CEL level, it can know whether it is restricted to access or not by referring to the configuration information according to its own AC information.

In an exemplary embodiment, the base station increases the CEL of the serving cell as a different combination of one dimension with the other mapped onto the access class. For example, the base station may configure and broadcast access class list information including CEL, and the terminal determines its access class according to its CEL and parameter information of other dimensions, and then performs access control check. Wherein, the parameters of other dimensions may include: AC. Type of service (e.g., data traffic, signaling, emergency calls/notifications, etc.), and so on.

In an exemplary embodiment, the access control configuration information configured and transmitted by the base station may further include: access control configuration information for one or more neighbor cells of a serving cell.

The base station may configure the access control configuration information of one or more neighboring cells according to a minimum overhead. The configuration information of the access control of one or more neighboring cells according to the minimum overhead may include one of: configuring configuration information of one or more access control parameters of one or more adjacent cells in a first mode; and secondly, configuring one or more adjacent cells to carry out access control according to the coverage capability supported by the terminal. In the first mode, the configuration information of the one or more access control parameters may include at least one of the following: threshold information of CELs, access control information of ACs of one or more neighbor cells. In the second mode, some of the coverage capabilities of the terminal only support the conventional coverage, and some of the coverage capabilities support the two coverage capabilities; access control from the terminal's capability perspective may also be considered, such as restricting access to coverage enhancing terminals.

In an exemplary embodiment, step 202 may include:

when the base station is in a preset scene, the base station transmits access control configuration information of a neighbor cell; wherein the predetermined scenario may include at least one of:

the predetermined number of neighboring cells of the serving cell all have a load exceeding a threshold (e.g., a number of neighboring cells are in a heavy load state), the predetermined number of neighboring cells restrict access to terminals of one or more access classes, and the predetermined number of neighboring cells restrict access to terminals of one or more low priorities.

In other words, the base station is triggered to transmit the access control configuration information of the neighbor cells only in some predetermined scenarios.

In an exemplary embodiment, a serving cell is in a joint area with at least one neighbor cell; at this time, step 201 may include: acquiring access control configuration information of each adjacent cell in a joint area, and configuring the joint access control configuration information of each cell in the joint area; step 202 may include: the base station transmits the joint access control configuration information of each cell in the joint area, wherein each adjacent cell in the joint area does not independently transmit the respective access control configuration information.

In this embodiment, when the network is deployed, a joint area of multiple cells may be planned, and each cell in the joint area may interact with its own access control configuration information and perform broadcast in combination. For example, the serving cell of the base station belongs to a joint area, and the access control configuration information of these cells can be obtained from other cells in the joint area, the access control configuration information of the joint area is configured, and the access control configuration information of the joint area is broadcasted. At this time, other cells in the joint area do not need to broadcast own access control configuration information, thereby avoiding the waste of system resources. In other implementations, the access control configuration information of the union region may also be broadcast by any of the other cells; or, the macro base station broadcasts the access control configuration information of the joint area. This is not a limitation of the present application.

In an exemplary embodiment, step 202 may include at least one of:

broadcasting access control configuration information through system messages;

the access Control configuration information is carried by RRC (Radio Resource Control) signaling or downlink data packets.

In this embodiment, a terminal in an RRC idle state may receive access control configuration information carried by a system message; the terminal in the RRC connected state may receive access control configuration information carried by an RRC signaling or a downlink data packet, where the access control configuration information may instruct the terminal to release connection and redirect to another cell, or instruct the terminal to determine an adjacent cell set capable of being accessed when performing cell reselection.

As shown in fig. 3, an embodiment of the present application provides an access control method, including:

301, a terminal receives access control configuration information transmitted by a base station; wherein the access control configuration information comprises configuration information of CELs of a serving cell of the base station;

step 302, the terminal performs access control processing according to the access control configuration information.

In an exemplary embodiment, the access control configuration information may include at least one of: the CEL of the serving cell is used as the cooperative use information of the access control parameters and one or more access control parameters except the CEL; access control parameter information of a corresponding AC configured for each CEL grade by taking CEL of a serving cell as a reference; access class information mapped by a combination of at least two access control parameters of a serving cell, wherein the access control parameters at least include: and (7) CEL.

In this embodiment, step 302 may include: the terminal determines the information of at least one access control parameter of the terminal, and performs access control check according to the information of at least one access control parameter of the terminal and by referring to the access control configuration information of the serving cell, wherein the access control parameter may include at least one of the following: CEL, AC, traffic type.

For example, the access control configuration information may include: access class information mapped by a combination of at least two access control parameters of a serving cell; at this time, step 302 may include: determining the access grade of the terminal according to the information of each access control parameter of the terminal and the received access control configuration information; and performing access control check according to the access grade of the terminal.

In an exemplary embodiment, the access control configuration information may further include: access control configuration information for one or more neighbor cells of a serving cell.

In an exemplary embodiment, step 301 may include:

when the terminal is in an RRC idle state, receiving a system message which is broadcasted by a base station and carries access control configuration information;

Wherein, when the terminal is in an RRC idle state and receives a system message carrying access control configuration information broadcast by the base station, step 302 may include:

When the terminal is in an RRC connected state and receives an RRC signaling or a downlink data packet carrying access control configuration information transmitted by the base station, step 302 may include:

the terminal completes RRC connection release and redirects to the cell indicated by the access control configuration information according to the access control configuration information; or switching to an RRC idle state according to the access control configuration information, and performing cell reselection in the RRC idle state according to the access control configuration information. For example, the configured access control neighbor cell set is checked during cell reselection, and then the cell set for performing cell quality measurement is determined.

As shown in fig. 4, an access control apparatus provided in an embodiment of the present application is applied to a base station, and includes: a first processing module 402, configured to configure access control configuration information, where the access control configuration information includes configuration information of a CEL of a serving cell of a base station; a first transmission module 401, configured to transmit the access control configuration information to the terminal.

The first processing module 402 may be configured to configure the access control configuration information by at least one of:

Adding CEL of a service cell as a reference, and configuring corresponding AC access control parameter information for each CEL level;

increasing access class information mapped by a combination of at least two access control parameters of a serving cell, wherein the access control parameters at least comprise: and (5) CEL.

The access control configuration information configured by the first processing module 402 may further include: access control configuration information for one or more neighbor cells of a serving cell.

The first transmission module 401 may be configured to transmit the access control configuration information to the terminal by at least one of:

broadcasting access control configuration information through system messages;

the access control configuration information is carried through RRC signaling or through a downlink data packet.

For the related description of the apparatus of this embodiment, reference may be made to the description of the embodiment shown in fig. 2, and therefore, the description thereof is omitted here.

As shown in fig. 5, an access control apparatus provided in an embodiment of the present application is applied to a terminal, and includes: a second transmission module 501, configured to receive access control configuration information transmitted by a base station; wherein the access control configuration information comprises configuration information of CELs of a serving cell of the base station; a second processing module 502, configured to perform access control processing according to the access control configuration information.

The access control configuration information received by the second transmission module 501 may include at least one of the following: the CEL of the serving cell is used as the cooperative use information of the access control parameters and one or more access control parameters except the CEL; access control parameter information of corresponding AC configured for each CEL grade by taking CEL of a serving cell as a reference; access class information mapped by a combination of at least two access control parameters of a serving cell, wherein the access control parameters at least include: and (7) CEL.

The access control configuration information received by the second transmission module 501 may further include: access control configuration information for one or more neighbor cells of a serving cell.

The second transmission module 501 may be configured to receive access control configuration information transmitted by a base station by:

when a terminal is in an RRC idle state, receiving a system message which is broadcasted by a base station and carries access control configuration information;

The second processing module 502 may be configured to perform access control processing according to the access control configuration information in the following manner when the terminal is in an RRC idle state and the second transmission module 501 receives a system message carrying the access control configuration information and broadcasted by the base station:

According to the access control configuration information, cell access control check is carried out during cell selection or reselection, and a cell set allowing the terminal to access is determined; performing quality measurement on each cell in the cell set to determine a cell to be accessed;

the second processing module 502 may also be configured to, when the terminal is in an RRC connected state and the second transmission module 501 receives an RRC signaling or a downlink data packet that is transmitted by the base station and carries the access control configuration information, perform access control processing according to the access control configuration information in the following manner:

The related description of the apparatus of this embodiment can refer to the description of the embodiment shown in fig. 3, and therefore will not be repeated herein.

The method of the present application is illustrated below by means of a number of examples.

Example one

This embodiment illustrates a procedure for configuring access control configuration information of a serving cell by a base station.

In this embodiment, the base station may configure the access control configuration information of the serving cell in at least one of the following manners:

Increasing a Coverage Level (CEL) as an access control parameter, and configuring the information of the cooperative use of the Coverage Level and other access control parameters (namely one or more access control parameters except the CEL);

adding CELs of a service cell as a reference of access control parameters, and configuring access control parameter information of corresponding access type ACs for each CEL level;

and adding CEL as different combinations of one dimension and other dimensions to be mapped to one access grade so that the terminal performs access control check according to the access grade.

When the base station increases the coverage level as an access control parameter, the base station broadcasts access control information of each CEL in addition to the access control information of the original access control parameter (for example, AC). At this time, the terminal may perform access control check according to its CEL and AC. For example, in one approach, an or access control relationship is configured between the access control of CEL and the access control of AC (or access class mapped by other access control parameters); restricted access such as "above CEL2 or" above AC10 (or other parameter mapping with a medium access level); in another way, configure an access control relationship that is "and" between the access control of the CEL and the access control of the AC (or access class mapped by other access control parameters); restricted access such as "above CEL2 and" above AC10 (or other parameter mapping with a medium access level);

The AC information under each CEL is configured by taking the CEL as a reference; restricted access above AC15 such as CEL 0; access restricted above AC10 of CEL 1; restricted access above AC5 of CEL 2; restricted access below AC5 of CEL 3; at this time, after the terminal has measured its own CEL level, it can know whether it is restricted to access or not by referring to the configuration information according to its own AC information.

When the base station adds the CEL to be mapped to one access class as different combinations of one dimension and other dimensions, the base station can broadcast the access class list information containing the CEL; at this time, the terminal may determine its access class according to its CEL and parameter information of other dimensions, and then perform access control check. For example, the access control configuration information includes a combination of CEL and AC, or a combination of CEL and AC and a service type.

Taking the access control configuration information comprising a combination of CEL and AC as an example, the access control configuration information may include: access classes less than or equal to CEL3 and less than or equal to AC5 are mapped onto access level 1; access classes less than or equal to CEL2 and greater than AC5 and less than or equal to AC10 are mapped on access level 2; access classes less than or equal to CEL2 and greater than AC10 and less than or equal to AC15 are mapped on access level 3; access classes less than or equal to CEL1 and greater than AC15 are mapped on access level 4.

Taking the access control configuration information including a combination of CEL, AC and service type as an example, the access control configuration information may include: the access classes less than or equal to CEL3 and less than or equal to AC5 and the traffic types are signaling or voice traffic or emergency call or emergency notification or downlink traffic (such as paging traffic) are mapped to access class 1; mapping access classes less than or equal to CEL2 and greater than AC5 and less than or equal to AC10 and traffic types of data traffic to access class 2; mapping of access classes less than or equal to CEL2 and greater than AC10 and less than or equal to AC15 and traffic types that are data traffic to access class 3; access classes less than or equal to CEL1 and greater than AC15 and traffic types are mapped for data traffic on access class 4.

The access control configuration information in this embodiment is only an example, and in practical applications, the corresponding access control configuration information may be configured according to practical situations.

Example two

This embodiment describes a procedure for configuring access control configuration information of a neighboring cell of a serving cell by a base station.

In this embodiment, the base station may configure the access control configuration information of the neighboring cell in at least one of the following manners: the base station configures partial access control parameters or all access control parameters of partial or all adjacent cells; and jointly configuring access control parameters of a plurality of cells.

The serving cell may exchange cell load information with other neighboring cells, and the content to be exchanged may include the terminal category to which each neighboring cell is restricted from accessing. The serving cell configures access control configuration information of the neighboring cells, wherein the access control configuration information may include configuration information of all access control parameters or configuration information of part of the access control parameters, and broadcasts the access control configuration information in the serving cell range through a system message. For example, in one mode, the configuration information of the access control parameter at least includes one of the following: threshold information of CELs, access control information of ACs of one or more neighbor cells; the terminal firstly completes the measurement of CEL of the adjacent cell and then completes the check of access control according to the access control information of at least one of CEL and AC; in another mode, the configuration information of the access control parameters can be distinguished according to the modes of normal coverage and coverage enhancement to carry out access control; the coverage capability of the terminal only supports conventional coverage, and the coverage capability of the terminal supports both the conventional coverage and the conventional coverage; access control may also consider access control from the terminal's capability perspective, such as restricting access to coverage enhancement terminals. The terminal determines whether the access is allowed according to the coverage capability supported by the terminal and the configuration information of the access control parameter related to the coverage capability.

Considering the overhead problem of the system message, the serving cell may configure only the access control configuration information of some neighboring cells. For the neighboring cell with high load, the serving cell configures the access control configuration information of the portion of neighboring cells in the system message, where the access control configuration information of the portion of neighboring cells may be configuration information of all access control parameters or configuration information of a portion of access control parameters. For example, in one mode, the configuration information of the access control parameter at least includes one of the following: threshold information of CELs, access control information of CELs of one or more neighbor cells; in another mode, the configuration information of the access control parameters can be distinguished according to the modes of normal coverage and coverage enhancement to carry out access control; the coverage capability of the terminal only supports conventional coverage, and the coverage capability of the terminal supports both the conventional coverage and the conventional coverage; access control may also consider access control from the terminal's capability perspective, such as restricting access to coverage enhancement terminals.

In addition, when the cells are deployed, the cells in a certain area range can be considered to be combined together to configure and broadcast the access control parameters. Each cell in the area needs to interact with respective access control configuration information, and then the configuration of the access control parameters of each cell in the combined area is completed. The macro base station or the base station of any cell may broadcast the access control configuration information, and other cells within the area may not broadcast their respective access control configuration information.

EXAMPLE III

This embodiment illustrates a process in which a base station broadcasts access control configuration information of a neighbor cell.

In this embodiment, the base station broadcasting the access control configuration information of the neighboring cell may include at least one of the following manners: the base station triggers and broadcasts the access control configuration information of the adjacent cell; the base station directly broadcasts the access control configuration information of the adjacent cell in the system message; and jointly broadcasting the access control configuration information among the cells.

The triggering and broadcasting of the access control configuration information of the neighbor cell by the base station may include: when the number of the neighbor cells with heavy load reaches a threshold (the threshold can be determined and configured by the network), the access control configuration information of the neighbor cells is triggered to be broadcasted through the system message; otherwise, only broadcasting the access control configuration information of the service cell.

When the access control configuration information is jointly broadcast among the cells, each cell in the joint area can share one SIB message, and then the joint access control configuration information is broadcast in the joint area.

Example four

This embodiment illustrates a procedure for transmitting access control configuration information by a base station.

In this embodiment, for a terminal in an RRC connected state, a base station may transmit access control configuration information through RRC signaling or through a downlink data packet.

For example, for a terminal in an RRC connected state, the base station may carry access control configuration information of the serving cell, access control configuration information changed by the serving cell, or access control configuration information of a neighboring cell through an RRC signaling. Alternatively, the access control configuration information of the serving cell, the access control configuration information changed by the serving cell, or the access control configuration information of the neighboring cell may be transmitted in a downlink data packet.

The access control configuration information transmitted by the base station may be used to instruct the terminal to release connection, redirect to a certain neighboring cell, or instruct the terminal to check the configured access control neighboring cell set when the cell is reselected when the terminal is to be switched to an RRC idle state.

EXAMPLE five

This embodiment describes a process in which a terminal receives and processes access control configuration information.

In this embodiment, when the broadcasted system message carries access control configuration information of the neighboring cell, the terminal in the RRC idle state may perform access control check on the neighboring cell according to the access control configuration information of the neighboring cell broadcasted in the system message, and perform cell quality measurement on the remaining neighboring cells after removing the neighboring cell with access restriction, thereby completing cell reselection.

In this embodiment, when an RRC signaling or a downlink data packet carries access control configuration information, a terminal in an RRC connected state may receive the access control configuration information of the serving cell carried by the RRC signaling or the downlink data packet, or the access control configuration information of the serving cell and an adjacent cell; the terminal may complete RRC connection release according to the indication of the access control configuration information, and redirect the RRC connection to the cell indicated by the terminal, or perform a cell reselection related operation according to the access control configuration information when the terminal is switched to an RRC idle state according to the indication of the access control configuration information, for example, check a configured access control neighboring cell set during cell reselection, and further determine a target cell set for cell quality measurement.

Example six

This embodiment illustrates a manner in which a base station restricts access of a terminal.

In this embodiment, considering that there are many terminals in the same access class, the base station may limit access to all terminals in a certain class, or may limit access to some terminals in the class. The base station can determine a part of terminals for limiting access in a random mode; and determining which terminals are used as the terminals with limited access according to other factors (such as service types and transmission data volumes), thereby ensuring the utilization rate of the system and the QoS of the high-priority terminals to the maximum extent. After the terminal is restricted from accessing for one time, in the subsequent access request process, if the AC according to the terminal is still the category restricted from accessing, the base station may determine whether the access of this time can be used as the terminal allowed to access in the category according to the random access request type and the load condition of the current cell, and the time interval after the last restricted access.

EXAMPLE seven

This embodiment illustrates a manner in which a base station directs cell reselection of a terminal.

In this embodiment, the base station broadcasts two sets of access control configuration information: a set of terminals used for access unrestricted in the serving cell; and the set of terminals is used for being limited to access in the service cell. The access control configuration information for the terminal which is not restricted to access in the serving cell includes at least one of the following: configuring more neighbor cell list information, such as neighbor cell access control configuration information of a neighbor cell list consisting of neighbor cells with wider load degree; configuring adjacent cell access control configuration information of an adjacent cell with a wider access control limit range; the access control parameter configuration information for the terminal restricted to access in the serving cell includes at least one of the following: configuring less neighbor cell list information, such as neighbor cell access control parameter configuration information of a neighbor cell list consisting of neighbor cells with lighter loads; and configuring the adjacent cell access control parameter configuration information with narrower access control limit range.

In addition, an embodiment of the present application further provides a base station, which includes the apparatus for access control shown in fig. 4. An embodiment of the present application further provides a terminal, including the access control apparatus as shown in fig. 5. The above-mentioned devices are described as above, and thus are not described herein again.

In addition, the embodiment of the application also provides an access control system, which comprises a base station and a terminal. The description of the base station and the terminal is the same as that described above, and therefore will not be repeated herein.

The method embodiment corresponding to fig. 2 may be performed in a base station or similar device. Taking the operation on the base station as an example, fig. 6 is a hardware structure block diagram of the base station implementing an access control method according to the embodiment of the present invention. As shown in fig. 6, the base station 60 may include one or more (only one shown) processors 62 (the processors 62 may include, but are not limited to, a processing device such as a Microprocessor (MCU) or a programmable logic device (FPGA)), a memory 64 for storing data, and a transmission device 66 for communication functions. It will be understood by those skilled in the art that the structure shown in fig. 6 is only an illustration and is not intended to limit the structure of the electronic device. For example, base station 60 may also include more or fewer components than shown in FIG. 6, or have a different configuration than shown in FIG. 6.

The memory 64 may be used to store software programs and modules of application software, such as program instructions/modules corresponding to the access control method in the embodiment of the present invention, and the processor 62 executes various functional applications and data processing by running the software programs and modules stored in the memory 64, so as to implement the method described above. The memory 64 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 64 may further include memory located remotely from the processor 62, which may be connected to the base station 60 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The transmission device 66 is used for receiving or transmitting data via a network. In one example, the transmission device 66 may be a Radio Frequency (RF) module, which is used for communicating with the internet in a wireless manner.

The method embodiment corresponding to fig. 3 may be executed in a terminal, a computer terminal or similar device. Taking the operation on the terminal as an example, fig. 7 is a hardware structure block diagram of the terminal implementing an access control method according to an embodiment of the present invention. As shown in fig. 7, the terminal 70 may include one or more processors 72 (only one shown in the figure) (the processors 72 may include, but are not limited to, processing devices such as MCUs or FPGAs), a memory 74 for storing data, and a transmission device 76 for communication functions. It will be understood by those skilled in the art that the structure shown in fig. 7 is only an illustration and is not intended to limit the structure of the electronic device. For example, terminal 70 may also include more or fewer components than shown in FIG. 7, or have a different configuration than shown in FIG. 7.

The memory 74 may be used for storing software programs and modules of application software, such as program instructions/modules corresponding to the access control method in the embodiment of the present invention, and the processor 72 executes various functional applications and data processing by running the software programs and modules stored in the memory 74, so as to implement the method described above. The memory 74 may include high speed random access memory and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 74 may further include memory located remotely from the processor 72, which may be connected to the terminal 70 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The transmission device 76 is used to receive or transmit data via a network. The above-described specific example of the network may include a wireless network provided by a communication provider of the terminal 70. In one example, the transmission device 76 includes a Network adapter (NIC), which can be connected to other Network devices through a base station so as to communicate with the internet. In one example, the transmission device 76 may be a Radio Frequency (RF) module used to communicate with the internet by wireless means.

In addition, the embodiment of the present application further provides a computer-readable storage medium, which stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, the method for implementing access control on a base station side is implemented.

In addition, the embodiment of the present application also provides a computer-readable storage medium, which stores computer-executable instructions, and the computer-executable instructions, when executed by a processor, implement a method for access control at a terminal side.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by a program instructing associated hardware (e.g., a processor) to perform the steps, and the program may be stored in a computer readable storage medium, such as a read only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Accordingly, the modules/units in the above embodiments may be implemented in hardware, for example, by an integrated circuit, or may be implemented in software, for example, by a processor executing programs/instructions stored in a memory to implement the corresponding functions. The present application is not limited to any specific form of combination of hardware and software.

The foregoing shows and describes the general principles and features of the present application, together with the advantages thereof. The present application is not limited to the above-described embodiments, which are described in the specification and drawings only to illustrate the principles of the application, but also to provide various changes and modifications within the spirit and scope of the application, which are within the scope of the claimed application.

Claims

1. A method of access control, comprising:

a base station configures access control configuration information, wherein the access control configuration information comprises configuration information of a coverage grade CEL of a serving cell of the base station;

the base station transmits the access control configuration information to a terminal;

the serving cell is in a joint area with at least one neighbor cell;

the base station configures access control configuration information, including:

the base station acquires the access control configuration information of each adjacent cell in the combined area, and configures the combined access control configuration information of each cell in the combined area;

the base station transmits the access control configuration information to the terminal, including:

2. The method of claim 1, wherein the base station configures access control configuration information comprising at least one of:

3. The method of claim 1, wherein the access control configuration information further comprises: access control configuration information of one or more neighbor cells of the serving cell.

4. The method of claim 3, wherein the base station configures access control configuration information, further comprising: and configuring the access control configuration information of one or more adjacent cells according to the minimum overhead.

5. The method of claim 4, wherein the configuring the access control configuration information of the one or more neighbor cells with minimum overhead comprises one of:

6. The method of claim 3, wherein the base station transmits the access control configuration information to the terminal, and wherein the method comprises:

limiting access to one or more access classes of terminals by a predetermined number of adjacent cells;

7. The method according to any of claims 1 to 6, wherein the base station transmits the access control configuration information to the terminal, comprising at least one of:

and carrying the access control configuration information through Radio Resource Control (RRC) signaling or through a downlink data packet.

8. A method of access control, comprising:

A terminal receives access control configuration information transmitted by a base station; wherein the access control configuration information comprises configuration information of a coverage level CEL of a serving cell of the base station;

the terminal carries out access control processing according to the access control configuration information;

the serving cell is in a joint area with at least one neighbor cell;

the access control configuration information is configured by the base station and comprises:

the terminal receives the access control configuration information transmitted by the base station, and the access control configuration information comprises the following steps:

and the terminal receives the joint access control configuration information of each cell in the joint area, which is transmitted by the base station, wherein each adjacent cell in the joint area does not independently transmit the respective access control configuration information.

9. The method of claim 8, wherein the access control configuration information comprises at least one of: the CEL of the serving cell is used as the cooperative use information of the access control parameters and one or more access control parameters except the CEL; the CEL of the service cell is taken as a reference to configure the access control parameter information of the corresponding access class AC for each CEL grade; access class information mapped by a combination of at least two access control parameters of the serving cell, wherein the access control parameters at least include: and (5) CEL.

10. The method of claim 9, wherein the performing, by the terminal, access control processing according to the access control configuration information comprises:

according to the information of at least one access control parameter of the mobile terminal, performing access control check by contrasting the access control configuration information of the serving cell, wherein the access control parameter comprises at least one of the following parameters: CEL, AC, traffic type.

11. The method of claim 8, wherein the access control configuration information further comprises: access control configuration information of one or more neighbor cells of the serving cell.

12. The method according to any of claims 8 to 11, wherein the terminal receives the access control configuration information transmitted by the base station, and comprises:

when the terminal is in a Radio Resource Control (RRC) idle state, receiving a system message which is broadcasted by the base station and carries the access control configuration information;

13. The method of claim 12, wherein when the terminal is in an RRC idle state and receives a system message carrying the access control configuration information and broadcasted by the base station, the terminal performs access control processing according to the access control configuration information, and the method comprises:

14. The method of claim 12, wherein when the terminal is in an RRC connected state and receives an RRC signaling or a downlink data packet that is transmitted by the base station and carries the access control configuration information, the performing, by the terminal, access control processing according to the access control configuration information includes:

the terminal completes RRC connection release and redirects to the cell indicated by the access control configuration information according to the access control configuration information; or switching to an RRC idle state according to the access control configuration information, and performing cell reselection in the RRC idle state according to the access control configuration information.

15. An access control device, applied to a base station, includes:

a first processing module, configured to configure access control configuration information, where the access control configuration information includes configuration information of a coverage level CEL of a serving cell of the base station;

a first transmission module, configured to transmit the access control configuration information to a terminal;

the serving cell is in a joint area with at least one neighbor cell;

the configuring the access control configuration information comprises:

acquiring access control configuration information of each adjacent cell in the combined area, and configuring the combined access control configuration information of each cell in the combined area;

the transmitting the access control configuration information to the terminal includes:

and transmitting the joint access control configuration information of each cell in the joint area, wherein each adjacent cell in the joint area does not independently transmit the respective access control configuration information.

16. The apparatus of claim 15, wherein the first processing module is configured to configure the access control configuration information by at least one of:

increasing access class information mapped by a combination of at least two access control parameters of the serving cell, wherein the access control parameters at least include: and (7) CEL.

17. The apparatus of claim 15, wherein the access control configuration information further comprises: access control configuration information of one or more neighbor cells of the serving cell.

18. The apparatus of any one of claims 15 to 17, wherein the first transmitting module is configured to transmit the access control configuration information to the terminal by at least one of:

19. An access control device, applied to a terminal, includes:

a second transmission module, configured to receive access control configuration information transmitted by a base station; wherein the access control configuration information comprises configuration information of a coverage level CEL of a serving cell of the base station;

The second processing module is used for carrying out access control processing according to the access control configuration information;

the serving cell is in a joint area with at least one neighbor cell;

the receiving of the access control configuration information transmitted by the base station includes:

and receiving the joint access control configuration information of each cell in the joint area, which is transmitted by the base station, wherein each adjacent cell in the joint area does not independently transmit the respective access control configuration information.

20. The apparatus of claim 19, wherein the access control configuration information comprises at least one of: the CEL of the serving cell is used as the matching use information of the access control parameters and one or more access control parameters except the CEL; the CEL of the service cell is taken as a reference to configure the access control parameter information of the corresponding access class AC for each CEL grade; access class information mapped by a combination of at least two access control parameters of the serving cell, wherein the access control parameters include at least: and (7) CEL.

21. The apparatus of claim 19, wherein the access control configuration information further comprises: access control configuration information of one or more neighbor cells of the serving cell.

22. The apparatus according to any of claims 19 to 21, wherein the second transmission module is configured to receive the access control configuration information transmitted by the base station by:

23. The apparatus of claim 22, wherein the second processing module is configured to perform access control processing according to the access control configuration information by, when the terminal is in an RRC idle state and the second transmission module receives a system message that is broadcasted by the base station and carries the access control configuration information:

The second processing module is further configured to perform access control processing according to the access control configuration information in the following manner when the terminal is in an RRC connected state and the second transmission module receives an RRC signaling or a downlink data packet that is transmitted by the base station and carries the access control configuration information:

24. A system for access control, comprising a base station according to any one of claims 15 to 18 and a terminal according to any one of claims 19 to 23.