WO2018161703A1

WO2018161703A1 - Access control method, device and system

Info

Publication number: WO2018161703A1
Application number: PCT/CN2017/119601
Authority: WO
Inventors: 刘旭; 戴博; 戴谦; 沙秀斌
Original assignee: 中兴通讯股份有限公司
Priority date: 2017-03-08
Filing date: 2017-12-28
Publication date: 2018-09-13
Also published as: CN108574973B; CN108574973A; CN115022941A

Abstract

An access control method comprises: a base station configuring access control configuration information, wherein the access control configuration information includes configuration information associated with a coverage level (CEL) of a service cell of the base station; and the base station transmitting, to a terminal, the access control configuration information.

Description

Access control method, device and system

Technical field

The present disclosure relates to wireless communication technologies, for example, to a method, apparatus, and system for access control.

Background technique

The rapid development of mobile Internet, Internet of Things and other business applications has become one of the driving forces driving the development of fifth generation of wireless mobile telecommunications technology (5G). Mobile Internet, Internet of Things, and other business applications are eagerly demanding 5G's access rate comparable to fiber, the connectivity of billions of devices, the perfect real-time experience, and wireless broadband access anywhere, anytime. In addition, energy efficiency, spectral efficiency and peak rate are also considered in the design of 5G systems.

The IMT-2020 (International Mobile Telecommunication for 2020) (ie, 5G) promotion group has promoted the development of 5G technology since its establishment in 2013. According to the overall situation of the international community, a 5G vision, key capability needs and spectrum planning will be formed in 2015. The 5G standardization work will be initiated and will be commercialized after 2020. In terms of international standards, one of the technical standards of the Long Term Evolution-Advanced (LTE-A) is developed by the Third Generation Partnership Project (3GPP) International Organization for Standardization. The industry initially believes that standard research work for 5G will be initiated in the 3GPP R14 phase.

In the future mobile network applications, the demand for traffic, the number of terminals and the types of terminals will all show explosive growth. In the subject of Machine Type Communication (MTC), the research topic of NarrowBand-Internet of Things (NB-IoT) is proposed for the characteristics of low-cost, low-throughput type terminals. The 200 kilohertz (kHZ) band provides low throughput wireless communication services for NB-IoT low cost terminals. When the number and types of terminals are numerous, how to perform access control on the NB-IoT system, thereby improving the utilization efficiency of system resources is a problem.

Summary of the invention

A method, device and system for access control can fully utilize system resources by configuring access control configuration information.

A method of access control, comprising:

The base station configures access control configuration information, where the access control configuration information includes configuration information of a coverage level CEL of the serving cell of the base station;

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

In an embodiment, the base station configures access control configuration information, including at least one of the following:

Adding a CEL of the serving cell as an access control parameter, and configuring the cooperation use information, where the cooperation use information is used in conjunction with the CEL and one or more access control parameters except the CEL. information;

Adding an access control parameter of the corresponding access type AC for each CEL level by using the CEL of the serving cell as a reference;

Adding access level information mapped by a combination of at least two types of access control parameters of the serving cell, where the at least two types of access control parameters include: the CEL.

In an embodiment, the access control configuration information further includes: access control configuration information of one or more neighboring cells of the serving cell.

In an embodiment, the determining, by the base station, the access control configuration information includes: configuring the access control configuration information of the one or more neighboring cells according to a minimum cost.

In an embodiment, configuring the access control configuration information of the one or more neighboring cells according to a minimum cost, including one of the following:

Configuring configuration information of one or more access control parameters of the one or more neighboring cells;

Configure the access control configuration information of the one or more neighboring cells according to the coverage capability supported by the terminal.

In an embodiment, the transmitting, by the base station, the access control configuration information to the terminal includes:

When the base station is in a predetermined scenario, the base station transmits the access control configuration information of the one or more neighboring cells to the terminal, where the predetermined scenario includes at least one of the following:

The load of the predetermined number of neighboring cells of the serving cell exceeds a threshold;

A predetermined number of neighboring cells restrict access to terminals of one or more access classes;

A predetermined number of neighboring cells restrict access to one or more low priority terminals.

In an embodiment, the serving cell and the at least one neighboring cell are in a joint area;

The base station configures access control configuration information, including:

And acquiring, by the base station, access control configuration information of each neighboring cell in the joint area, and configuring joint access control configuration information of each of the cells;

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

The base station transmits, to the terminal, joint access control configuration information of each cell in the joint area.

In an embodiment, the base station transmits the access control configuration information to the terminal, including at least one of the following:

Broadcasting the access control configuration information by a system message;

The access control configuration information is carried by the RRC signaling by the radio resource or by the downlink data packet.

A method of access control, comprising:

Receiving, by the terminal, access control configuration information transmitted by the base station, where the access control configuration information includes configuration information of a coverage level CEL of the serving cell of the base station;

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

In an embodiment, the access control configuration information includes at least one of the following:

The CEL of the serving cell is used as an access control parameter and cooperation usage information, where the cooperation usage information is information used by the CEL and one or more access control parameters except the CEL;

Access control parameters of respective access-type ACs configured for each CEL level using the CEL of the serving cell as a reference;

The access level information mapped by the combination of the at least two types of access control parameters of the serving cell, where the at least two types of access control parameters include: the CEL.

In an embodiment, the terminal performs access control processing according to the access control configuration information, including:

Determining, by the terminal, at least one access control parameter of the terminal;

Performing an access control check according to the access control configuration information of the serving cell according to the at least one access control parameter, where each access control parameter includes at least one of the following: a CEL, an AC, and a service type.

In an embodiment, the terminal receives the access control configuration information transmitted by the base station, including:

Receiving, by the terminal, a system message that is broadcast by the base station and carrying the access control configuration information, and the terminal is in a radio resource control RRC idle state;

When the terminal is in the RRC connected state, it receives the RRC signaling or downlink data packet that is transmitted by the base station and carries the access control configuration information.

In an embodiment, when the terminal is in an RRC idle state and receives a system message that is broadcast by the base station and carries the access control configuration information, the terminal performs access control processing according to the access control configuration information. ,include:

The terminal performs a cell access control check when the cell is selected or reselected according to the access control configuration information, determines a cell set that the terminal is allowed to access, and performs quality measurement on each cell in the cell set. Determine the cell to be accessed.

In an embodiment, when the terminal is in an RRC connected state, and receives the RRC signaling or the downlink data packet that is sent by the base station and carries the access control configuration information, the terminal is configured according to the access control configuration information. Perform access control processing, including:

The terminal completes the RRC connection release and redirects to the cell indicated by the access control configuration information according to the access control configuration information; or, according to the access control configuration information, switches to the RRC idle state, and The cell reselection is performed according to the access control configuration information in the RRC idle state.

An access control device is applied to a base station, including:

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;

The first transmission module is configured to transmit the access control configuration information to the terminal.

In an embodiment, the processing module is configured to configure access control configuration information in at least one of the following manners:

In an embodiment, the transmission module is configured to transmit the access control configuration information to the terminal in at least one of the following manners:

Broadcasting the access control configuration information by a system message;

An access control device is applied to a terminal, including:

a second receiving module, configured to receive access control configuration information transmitted by the base station, where the access control configuration information includes configuration information of a coverage level CEL of the serving cell of the base station;

The second processing module is configured to perform access control processing according to the access control configuration information.

In an embodiment, the receiving module is configured to receive access control configuration information transmitted by the base station by:

Receiving, by the base station, a system message that carries the access control configuration information when the terminal is in a radio resource control RRC idle state;

And receiving, by the base station, the RRC signaling or the downlink data packet that carries the access control configuration information when the terminal is in an RRC connected state.

In an embodiment, the processing module is configured to: when the terminal is in an RRC idle state, and the transmitting module receives a system message that is broadcast by the base station and carries the access control configuration information, according to the following manner The access control configuration information is used for access control processing:

Determining, according to the access control configuration information, a cell access control check when the cell is selected or reselected, determining a set of cells that the terminal is allowed to access, and performing quality measurement on each cell in the set of cells to determine Accessed cell;

The processing module is further configured to: when the terminal is in an RRC connected state, and the transmitting module receives the RRC signaling or the downlink data packet that is sent by the base station and carries the access control configuration information, according to the following manner, The access control configuration information is subjected to access control processing:

And completing the RRC connection release and redirecting to the cell indicated by the access control configuration information according to the access control configuration information; or switching to the RRC idle state according to the access control configuration information, and in the RRC idle state The cell reselection is performed according to the access control configuration information.

A system for access control, comprising any of the above-mentioned devices for access control of a base station and any of the above-mentioned devices for access control of a terminal.

A computer readable storage medium storing computer executable instructions arranged to perform any of the methods described above.

A base station comprising:

At least one processor;

a memory communicatively coupled to the at least one processor; wherein

The memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to cause the at least one processor to perform a method performed by a base station.

A terminal comprising:

At least one processor;

a memory communicatively coupled to the at least one processor; wherein

The memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to cause the at least one processor to perform a method performed by a terminal.

DRAWINGS

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

2 is a flowchart of a method for access control on a base station side according to an embodiment;

3 is a flowchart of a method for access control on a terminal side according to an embodiment;

4 is a schematic diagram of an apparatus for access control on a base station side according to an embodiment;

FIG. 5 is a schematic diagram of an apparatus for access control on a terminal side according to an embodiment; FIG.

6 is a schematic diagram of hardware of a base station provided by an embodiment;

FIG. 7 is a schematic diagram of hardware of a terminal provided by an embodiment.

detailed description

The steps illustrated in the flowchart of the figures may be executed in a computer system such as a set of computer executable instructions. Also, although the logical order is shown in the flowcharts, in some cases, the illustrated or described steps may be performed in a different order than the steps in the flowchart.

In the Long Term Evolution (LTE) system, the system (LTE system) can set access control in order to ensure the quality of service (QoS) of the serving terminal in the cell and the high priority terminal can access the cell in time. Program. For example, when the system capacity reaches a preset threshold, access control can be performed on the terminal that newly initiates the access request. For example, if the access priority of the terminal is low, the system will prohibit the terminal from accessing; if the priority of the terminal is high, the system can redirect the terminal to a low-load cell. In an embodiment, the low-priority terminal of the cell or the terminal with poor signal coverage may be released, and the reason for the terminal being released from the connection may be indicated in the release connection signaling, and the terminal is instructed to access other suitable devices. The cell ensures that the terminal with higher priority has priority access.

FIG. 1 is a schematic flowchart of an access control method in an LTE system. As shown in FIG. 1, the access control method includes the following steps.

In step 110, the base station configures access control configuration information of the first cell and broadcasts in the first cell.

In step 120, the terminal in the radio resource control (RRC) idle state checks the access class (AC) of the terminal after receiving the broadcast message, and determines whether the terminal itself is allowed to access the first according to the AC. Community.

In step 130, the terminal determines whether it is restricted to access the first cell. If the terminal is restricted to access the first cell, step 140 is performed. If the terminal is allowed to access the first cell, step 190 is performed.

In step 140, the terminal performs neighbor cell quality measurement to perform cell reselection until an accessible neighbor cell is found.

In step 150, after reselecting the neighboring area with good quality, the terminal receives the access control configuration information of the neighboring area, and checks its own access class.

In step 160, the terminal determines whether it is restricted to access the neighboring cell according to its own access class. If the terminal is restricted to access the neighboring cell, step 170 is performed. If the terminal is allowed to access the neighboring cell, step 180 is performed. .

In step 170, the terminal performs cell quality measurement and continues cell reselection.

In step 180, the terminal resides in the neighboring cell and initiates a random access request at a timer.

In step 190, the terminal camps on the first cell and initiates a random access request at a timer.

In an embodiment, the base station may broadcast the access control configuration information (Access Barring-parameter) of the local cell to the terminal by using a system information block (SIB) message, and the terminal detects the access control configuration information according to the AC of the terminal. , thereby completing the determination of access control.

In the protocol version in the related art, the access control configuration information of the current cell does not include the access level access control of the terminal, and if the coverage level problem is considered, the utilization of system resources can be improved.

In the protocol version in the related art, 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 will cause the terminal to complete the cell and the neighboring cell when performing cell reselection. After the measurement, there may be a case where the neighboring cell is reselected to a neighboring cell, and the neighboring cell is not allowed to access the terminal, which causes unnecessary measurement of the quality of the neighboring cell, which leads to an increase in power consumption of the terminal, and also affects the access delay. . If the access control configuration information of the neighboring cell is also configured when the access control configuration information of the local network is configured, unnecessary neighbor cell quality measurement can be reduced and frequent cell reselection can be avoided.

The method, device, and system for access control provided by the following embodiments improve the system resource utilization by configuring the access control configuration information, and configuring and transmitting the access control configuration information of the neighboring cell in the local cell to reduce the terminal unnecessary. Quality measurement of neighboring cells and avoid frequent cell reselection, reducing power consumption and reducing access delay.

As shown in FIG. 2, an embodiment provides a method for access control, where the method includes the following steps.

In step 201, the base station configures access control configuration information, where the access control configuration information includes configuration information of a coverage level (Coverage Enhancement Level, CEL) of the serving cell of the base station.

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

In an embodiment, step 201 may include at least one of the following:

Adding a CEL of the serving cell as an access control parameter, and configuring the cooperation use information, where the cooperation use information is information used by the CEL and one or more access control parameters except the CEL;

Adding the CEL of the serving cell as a reference, and configuring the corresponding AC access control parameters for each CEL level;

And increasing access level information mapped by a combination of at least two types of access control parameters of the serving cell, where the at least two types of access control parameters include: CEL.

In an exemplary embodiment, the base station increases the CEL of the serving cell as an access control parameter, and configures the cooperative use information used by the CEL in conjunction with other access control parameters (eg, AC or service type). For example, the base station can broadcast the access control information of the CEL in addition to the access control information of the broadcast access class (AC). For example, the cooperation use information includes: information used by the CEL in conjunction with the AC, information used by the CEL in conjunction with the service type, or information used in conjunction with the CEL, the AC, and the service type.

In an embodiment, the correspondence between the AC and the access level (priority) may be broadcast by the base station through a system message, and the access priority corresponding to the high AC value is lower. The terminal can perform access control check according to CEL and AC. For example, when information of at least one of the CEL and the AC of the terminal is restricted to access the serving cell, the terminal is restricted from accessing the serving cell.

In an exemplary embodiment, the base station increases the access control parameters of the 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: CEL0 level and terminals above AC15 are restricted from accessing; terminals of CEL1 level and above AC10 are restricted from accessing; terminals of CEL2 level and above AC5 are restricted. Terminals with CEL3 rating and below AC5 are restricted from access. After detecting the CEL level of the terminal, the terminal can compare the configuration information according to its own AC information, and the terminal can know whether it is restricted access.

In an exemplary embodiment, the base station increases the CEL of the serving cell as a different combination of dimensions and other dimensions onto the access level. For example, the base station can configure and broadcast the access level list information including the CEL, and the terminal determines its own access level according to the parameter information of its own CEL and other dimensions, and performs an access control check. In an embodiment, the parameters of other dimensions may include: AC and a service type (eg, at least one of data service, signaling, emergency call, and notification).

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

In an embodiment, the base station may configure access control configuration information of one or more neighboring cells according to a minimum cost. The configuration of the access control configuration information of one or more neighboring cells according to the minimum cost may include one of the following two manners.

In the first manner, configuration information of one or more access control parameters of one or more neighboring cells is configured. In the second mode, one or more neighboring cells are configured to perform access control according to the coverage capability supported by the terminal.

In the first manner, the configuration information of the one or more access control parameters may include at least one of: threshold information of a CEL of one or more neighboring cells, access control information of the CEL, and access control information of the AC.

In mode 2, some terminals only support regular coverage, some terminals support these two coverage capabilities (regular coverage and coverage enhancement), and may also consider access control from the perspective of the capabilities of the terminal, such as limiting access support enhanced coverage. .

In an exemplary embodiment, step 202 may include:

When in a predetermined scenario, the base station transmits the access control configuration information of the neighboring cell; wherein the predetermined scenario may include at least one of the following:

The load of the predetermined number of neighboring cells of the serving cell exceeds a threshold (for example, multiple neighboring cells are in a state of heavy load), a predetermined number of neighboring cells restrict access to terminals of one or more access classes, and reservations A number of neighboring cells restrict access to one or more low priority terminals.

In some predetermined scenarios, the base station may transmit the access control configuration information of the neighboring cell.

In an exemplary embodiment, the serving cell and the at least one neighboring cell are in a joint area. In this case, step 201 may include: acquiring access control configuration information of each neighboring cell in the joint area, and configuring each cell in the joint area. The joint access control configuration information, wherein the joint area is an area formed by a plurality of neighboring cells that exchange respective access control configuration information.

Step 202 may include: the base station transmits joint access control configuration information of each cell in the joint area, where multiple neighbor cells in the joint area no longer separately transmit respective access control configuration information.

In an embodiment, when a network is deployed, a joint area of multiple cells may be planned, and multiple cells in the joint area may exchange respective access control configuration information and jointly broadcast. For example, the serving cell of the base station belongs to the joint area, and the access control configuration information of the cell is obtained from the other cells of the joint area (the cells other than the serving cell where the base station is located), and the access control configuration information of the joint area is configured, and Broadcast access control configuration information for the joint area. At this time, other cells in the joint area do not need to broadcast their own access control configuration information, thereby avoiding waste of system resources.

In an embodiment, multiple neighboring cells in the joint area do not separately transmit respective access control configuration information, and access control configuration information of multiple cells in the joint area is broadcast by any one of the other cells, or The macro base station (which may be the base station herein) broadcasts.

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

Controlling configuration information through system message broadcast access;

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

In an embodiment, the terminal in the RRC idle state may receive the access control configuration information carried by the system message; the terminal in the RRC connected state may receive the access control configuration information carried by the RRC signaling or the downlink data packet. The access control configuration information may instruct the terminal to release the connection and redirect to other cells, or guide the terminal to determine the set of neighboring cells that can be accessed when performing cell reselection.

As shown in FIG. 3, an embodiment provides a method for access control, where the method includes the following steps.

In step 301, the terminal receives the access control configuration information transmitted by the base station, where the access control configuration information includes configuration information of the CEL of the serving cell of the base station.

In 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 following:

The CEL of the serving cell is used as an access control parameter and the cooperation use information, wherein the cooperation use information is information used by the CEL and one or more access control parameters except the CEL;

Access control parameters of respective ACs configured for each CEL level based on the CEL of the serving cell;

The access level information mapped by the combination of the at least two types of access control parameters of the serving cell, where the at least two types of access control parameters include: CEL.

In an embodiment, the step 302 may include: the terminal determines at least one access control parameter of the terminal, and performs access control check according to the access control configuration information of the serving cell according to the at least one access control parameter of the terminal, where The access control parameter may include at least one of the following: CEL, AC, and service type.

For example, the access control configuration information may include: access level information mapped by a combination of at least two access control parameters of the serving cell, and step 302 may include: according to multiple access control parameters of the terminal and the received access Control configuration information, determine the access level of the terminal; perform access control check according to the access level of the terminal.

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

In an exemplary embodiment, step 301 can include:

Receiving, by the base station, a system message that carries the access control configuration information broadcasted by the base station when the terminal is in the RRC idle state;

When the terminal is in the RRC connected state, it receives the RRC signaling or downlink data packet that carries the access control configuration information transmitted by the base station.

In an embodiment, when the terminal is in the RRC idle state and receives the system message that is broadcasted by the base station and carries the access control configuration information, step 302 may include:

The terminal performs cell access control check when the cell is selected or reselected according to the access control configuration information, determines a set of cells that the terminal is allowed to access, and performs quality measurement on each cell in the cell set to determine the to-be-accessed Community.

When the terminal is in the RRC connected state and receives the RRC signaling or the downlink data packet that carries the access control configuration information, the step 302 may include:

The terminal completes the RRC connection release and redirects to the cell indicated by the access control configuration information according to the access control configuration information; or switches to the RRC idle state according to the access control configuration information, and according to the access control in the RRC idle state The configuration information is used for cell reselection. For example, when the cell is reselected, the set of neighbor cells of the configured access control is checked, and the cell set for performing cell quality measurement is determined.

FIG. 4 is an apparatus for access control according to an embodiment, which is applied to a base station, and includes: a first transmission module 401 and a first processing module 402. The first processing module 402 is configured to configure access control configuration information, where the access control configuration information includes configuration information of a CEL of a serving cell of the base station. The first transmission module 401 is configured to transmit access control configuration information to the terminal.

In an embodiment, the first processing module 402 can be configured to configure the access control configuration information in at least one of the following manners:

In an embodiment, the access control configuration information configured by the first processing module 402 may further include: access control configuration information of one or more neighboring cells of the serving cell.

In an embodiment, the first transmission module 401 can be configured to transmit access control configuration information to the terminal in at least one of the following manners:

Controlling configuration information through system message broadcast access;

The access control configuration information is carried by RRC signaling or by a downlink data packet.

For a description of the apparatus shown in Fig. 4, reference may be made to the description of the embodiment shown in Fig. 2.

FIG. 5 is an apparatus for access control according to an embodiment, which is applied to a terminal, and includes: a second transmission module 501 and a second processing module 502. The second transmission module 501 is configured to receive access control configuration information transmitted by the base station; where the access control configuration information includes configuration information of a CEL of the serving cell of the base station. The second processing module 502 is configured to perform access control processing according to the access control configuration information.

In an embodiment, the access control configuration information received by the second transmission module 501 may include at least one of the following: a CEL of the serving cell as an access control parameter, and the usage information, wherein the cooperation usage information is the CEL and the Information used in conjunction with one or more access control parameters other than CEL; access control parameters of respective ACs configured for each CEL level based on the CEL of the serving cell; and at least two types of serving cells Access level information mapped by a combination of control parameters, wherein at least two types of access control parameters include: CEL.

In an embodiment, the access control configuration information received by the second transmission module 501 may further include: access control configuration information of one or more neighboring cells of the serving cell.

In an embodiment, the second transmission module 501 can be configured to receive access control configuration information transmitted by the base station by:

Receiving, by the base station, a system message carrying the access control configuration information when the terminal is in the RRC idle state;

When the terminal is in the RRC connected state, the RRC signaling or downlink data packet carrying the access control configuration information transmitted by the base station is received.

In an embodiment, the second processing module 502 may be configured to set the access control configuration information according to the following manner when the terminal is in the RRC idle state, and the second transmission module 501 receives the system message that is broadcasted by the base station and carries the access control configuration information. Perform access control processing:

Performing, according to the access control configuration information, a cell access control check when the cell is selected or reselected, determining a set of cells that the terminal is allowed to access, and performing quality measurement on each cell in the set of cells to determine the to-be-accessed Community.

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

According to the access control configuration information, complete the RRC connection release and redirect to the cell indicated by the access control configuration information; or switch to the RRC idle state according to the access control configuration information, and configure according to the access control in the RRC idle state. Information is used for cell reselection.

For a description of the apparatus shown in Fig. 5, reference may be made to the embodiment shown in Fig. 3.

An embodiment illustrates a process in which a base station configures access control configuration information of a serving cell. In this embodiment, the base station may configure access control configuration information of the serving cell in at least one of the following manners:

Increasing the coverage level CEL as an access control parameter, and configuring the cooperation usage information, wherein the cooperation usage information is between the CEL and other access control parameters (ie, one or more access control parameters except CEL) Information used in conjunction with;

Adding the CEL of the serving cell as a reference for the access control parameter, and configuring the access control parameters of the corresponding access type AC for each CEL level;

The CEL is added as a different combination of dimensions and other dimensions to an access level, so that the terminal performs an access control check according to the access level.

In an embodiment, when the base station increases the coverage level as the access control parameter, the base station broadcasts the access control information of each CEL in addition to the access control information of the original access control parameter (for example, AC). At this point, the terminal can perform access control checks based on its own CEL and AC.

For example, in one mode, the access control of the CEL is configured to be an OR control relationship between the access control of the AC (or the access level mapped by other access control parameters); for example, CEL2 or higher or AC10 Terminals (or other priority mappings whose access levels are medium priority) are restricted from access.

In another mode, the access control configured between the CEL and the access control of the AC (or the access level mapped by other access control parameters) is an "and" access control relationship; for example, CEL2 or more "and" AC10 ( Terminals with access levels other than medium priority mapping or other parameter mappings are restricted from access.

In one embodiment, AC information under each CEL is configured on a CEL basis, for example, CEL0 and terminals above AC15 are restricted from accessing, terminals above CEL1 and AC10 are restricted from accessing, and terminals above CEL2 and AC5 are restricted. Terminals that are in, or CEL3, and below AC5 are restricted from access. After measuring the CEL level of the terminal, the terminal can compare the configuration information according to its own AC information to know whether it is restricted access.

In an embodiment, when the base station adds CEL as a dimension and a different combination of other dimensions to map to an access level, the base station may broadcast the access level list information including the CEL; the terminal may according to its own CEL and other dimension parameters. The information determines its own access level and performs access control checks. For example, the access control configuration information includes a CEL and an AC combination, or the access control configuration information includes a CEL, an AC, and a service type.

In an embodiment, the access control configuration information includes an access control configuration information that is combined with the CEL and the AC. The access control configuration information may include: an access class that is less than or equal to CEL3 and less than or equal to AC5 is mapped to access. Level 1; an access class less than or equal to CEL2 and greater than AC5 and less than or equal to AC10 is mapped to access level 2; an access class less than or equal to CEL2 and greater than AC10 and less than or equal to AC15 is mapped to access level 3 The access class less than or equal to CEL1 and greater than AC15 is mapped to access level 4.

In an embodiment, the access control configuration information, where the access control configuration information includes the combination of the CEL and the AC, and the service type, is used as an example. The access control configuration information may include: an access class that is less than or equal to CEL3 and less than or equal to AC5, and The service type is signaling or voice service or emergency call or emergency notification or downlink service (such as paging service) is mapped to access level 1; access class and service less than or equal to CEL2 and greater than AC5 and less than or equal to AC10 The type is the data service mapped to access level 2; the access class less than or equal to CEL2 and greater than AC10 and less than or equal to AC15 and the service type is mapped to access level 3 of the data service; less than or equal to CEL1 and greater than The access class and service type of the AC15 are mapped to the access level 4 for the data service.

An embodiment illustrates a process in which a base station configures access control configuration information of a neighboring cell of a serving cell. In this embodiment, the base station may configure the access control configuration information of the neighboring cell in at least one of the following ways: the base station configures part of the access control parameters or all access control parameters of the neighboring cell; and jointly allocates multiple cells. Access control parameters.

In an embodiment, the serving cell may exchange cell load information with other neighboring cells, and the content that can be exchanged may include the terminal class that each neighboring cell restricts access to. The access control configuration information of the neighboring cells is configured by the serving cell, and 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 the The incoming control configuration information is broadcast within the serving cell range.

For example, in one mode, the configuration information of the access control parameter includes at least one of the following: threshold information of a CEL of one or more neighboring cells, access control information of the CEL, and access control information of the AC. The terminal completes the measurement of the CEL of the neighboring cell, and the access control check may be completed according to the access control information of at least one of the CEL and the AC.

In another mode, the configuration information of the access control parameter may also be differentiated according to the conventional coverage and the coverage enhanced mode, where some terminals only support regular coverage, and some terminals support the two coverage capabilities; access control It is also conceivable to perform access control from the perspective of the capabilities of the terminal, such as limiting access support for enhanced coverage. The terminal determines whether access is allowed according to the coverage capability supported by the terminal and the configuration information of the access control parameters related to the coverage capability.

In an embodiment, the serving cell may only configure access control configuration information of a part of the neighboring cells in consideration of the overhead of the system message. For the neighboring cell that is in a high load, the serving cell may configure the access control configuration information of the neighboring cell in the system message, and the access control configuration information of the neighboring cell may be the configuration information of all the access control parameters or Part of the configuration information of the access control parameters. For example, in one mode, the configuration information of the access control parameter includes at least one of the following: threshold information of a CEL of one or more neighboring cells, and access control information of the CEL. In another mode, the configuration information of the access control parameter may also be differentiated according to the conventional coverage and the coverage enhanced mode; wherein, some terminals only support regular coverage, and some terminals support the two coverage capabilities; It is also conceivable to perform access control from the perspective of the capabilities of the terminal, such as limiting access support for enhanced coverage.

In an embodiment, when a cell is deployed, it may be considered to combine cells in a certain area to perform configuration and broadcast of access control parameters. A plurality of cells in the area may exchange respective access control configuration information to complete configuration of access control parameters of multiple cells in the joint area. The broadcast control configuration information may be broadcast by the macro base station or the base station of any cell, and other cells in the area may not broadcast the respective access control configuration information.

An embodiment illustrates a process in which a base station broadcasts access control configuration information of a neighboring cell. In this embodiment, the base station broadcasts access control configuration information of the neighboring cell may include at least one of the following modes: the base station triggers access control of the broadcast neighboring cell. Configuration information; the base station directly broadcasts the access control configuration information of the neighboring cell in the system message; and the inter-cell joint broadcast access control configuration information.

In an embodiment, the base station triggering the access control configuration information of the broadcast neighboring cell may include: when the number of the neighboring cells with heavy load reaches a threshold (the threshold may be determined and configured by the network), the neighboring cell is triggered to be broadcasted through the system message. Access control configuration information; otherwise, only the access control configuration information of the serving cell is broadcast.

In an embodiment, when the access control configuration information is jointly broadcasted between the cells, each cell in the joint area may share one SIB message, and then broadcast the joint access control configuration information in the joint area.

An embodiment illustrates a process in which a base station transmits access control configuration information. In this embodiment, for a terminal in an RRC connected state, the base station may carry the access control configuration information through RRC signaling or through a downlink data packet.

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

In an embodiment, the access control configuration information transmitted by the base station may be used to indicate that the terminal releases the connection, redirects to a neighboring cell, or instructs the terminal to check the configuration when the cell is reselected, when the terminal is switched to the RRC idle state. The access control neighbor cell set.

An embodiment illustrates a process in which a terminal receives access control configuration information and performs processing. In this embodiment, when the broadcast system message carries the access control configuration information of the neighboring cell, the terminal in the RRC idle state may be in the system message. The access control configuration information of the neighboring cell of the broadcast performs the access control check of the neighboring cell, removes the neighboring cell of the access restriction, performs cell quality measurement on the remaining neighboring cells, and completes cell reselection.

In an embodiment, when the RRC signaling or the downlink data packet carries the access control configuration information, the terminal in the RRC connected state may receive the RRC signaling or the access control configuration information of the serving cell carried by the downlink data packet, or The access control configuration information of the serving cell and the neighboring cell; wherein the terminal may complete the RRC connection release according to the indication of the access control configuration information, and redirect to the indicated cell, or according to the indication of the access control configuration information, When it switches to the RRC idle state, the cell reselection-related operation is performed according to the access control configuration information, for example, when the cell reselection is performed, the configured access control neighbor cell set is checked, and then the target cell set of the cell quality measurement is determined.

An embodiment illustrates a manner in which a base station restricts access by a terminal. In this embodiment, considering that the number of terminals in the same access class is large, the base station may restrict access to all types of terminals, and may also restrict a part of the terminals in the category. Terminal access. The base station can determine a part of the terminal that restricts access in a random manner; and can determine which terminals are restricted access terminals according to other factors (such as service type and amount of transmitted data), thereby maximally ensuring system utilization and QoS for high priority terminals. After the terminal access is restricted, in the subsequent access request process, if the AC according to the terminal is still in the restricted access category, the base station may according to the random access request type and the current cell load situation. And the factors such as the time interval after the last restricted access, determine whether the current access can be used as a terminal allowed to access in this category.

An embodiment illustrates a manner in which a base station directs terminal cell reselection. In an embodiment, a base station broadcasts two sets of access control configuration information: a set of access control configuration information is used for a terminal that is not restricted in access to the serving cell. And another set of terminals for restricted access in the serving cell.

In an embodiment, the access control configuration information of the terminal used for the unrestricted access in the serving cell includes at least one of the following:

Configuring a plurality of neighbor cell list information, such as neighbor cell access control configuration information including a neighbor cell list formed by a neighboring cell having a relatively large load;

Configuring the access control configuration information of the neighboring cell of the neighboring cell with a wide range of the access control, where the access control parameter configuration information of the terminal that is restricted to access in the serving cell includes at least one of the following: The neighbor cell list information, such as the neighbor cell access control parameter configuration information including only the neighbor cell list formed by the lighter neighbor cells;

Configure neighboring cell access control parameter configuration information with narrow access control restrictions.

An embodiment provides a base station comprising means for access control as shown in FIG. An embodiment provides a terminal comprising an apparatus for access control as shown in FIG.

An embodiment provides a system for access control, including a base station and a terminal. Among them, the method or the modules involved in the execution of the base station and the terminal are as described above.

The method embodiment corresponding to Figure 2 can be performed in a base station or similar device. For example, the method embodiment is used to run on a base station. FIG. 6 is a block diagram of a hardware structure of a base station according to an embodiment. As shown in FIG. 6, base station 60 may include one or more (only one shown) processor 62 (processor 62 may include a Microcontroller Unit (MCU) or a programmable logic device (Field-Programmable Gate). Array, FPGA)), a memory 64 provided to store data, and a transmission device 66 having a communication function.

Base station 60 may also include more or fewer components than shown in FIG. 6, or have a different configuration than that shown in FIG.

The memory 64 may be provided as a software program and a module for storing application software, such as program instructions or modules corresponding to the access control method in the above embodiment, and the processor 62 executes the software program and the module stored in the memory 64 to execute A functional application and data processing, that is, a method performed by the above base station.

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, memory 64 may also include memory remotely located relative to processor 62, which may be coupled to base station 60 over a network. Examples of such networks include the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

Transmission device 66 is arranged to receive or transmit data via a network. In one example, transmission device 66 can be a radio frequency (RF) module that is configured to communicate with the Internet wirelessly.

The method embodiment corresponding to FIG. 3 can be performed in a terminal, a computer terminal, or the like. For example, the terminal is operated on the terminal. FIG. 7 is a block diagram of a hardware structure of a terminal provided by an embodiment. As shown in FIG. 7, terminal 70 may include one or more (only one shown) processor 72 (processor 72 may include an MCU or FPGA), memory 74 configured to store data, and communication with communication capabilities. Device 76. Terminal 70 may also include more or fewer components than shown in FIG. 7, or have a different configuration than that shown in FIG.

The memory 74 can be configured as a software program and a module for storing application software, such as program instructions or modules corresponding to the access control method in the above embodiment, and the processor 72 executes the software program and the module stored in the memory 74 to execute A functional application and data processing, that is, a method for implementing the above terminal execution.

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, memory 74 may also include memory remotely located relative to processor 72, which may be connected to terminal 70 over a network. Examples of such networks include the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

Transmission device 76 is arranged to receive or transmit data via a network. The network instance described above may include a wireless network provided by a communication provider of terminal 70. In one example, transmission device 76 includes a Network Interface Controller (NIC) that can be connected to other network devices through a base station to communicate with the Internet. In one example, the transmission device 76 can be a Radio Frequency (RF) module that is configured to communicate with the Internet wirelessly.

An embodiment provides a computer readable storage medium storing computer executable instructions for performing a method of access control at a base station side when executed by a processor.

An embodiment provides a computer readable storage medium storing computer executable instructions that implement a method of access control on a terminal side when executed by a processor.

All or part of the above steps may be performed by a program to instruct related hardware (eg, a processor), which may be stored in a computer readable storage medium such as a read only memory, a magnetic disk, or an optical disk. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits.

The plurality of modules or units in the foregoing embodiments may be implemented in the form of hardware, for example, by implementing an integrated circuit to implement its corresponding function, or may be implemented in the form of a software function module, for example, executing a program or an instruction stored in the memory by a processor. To achieve its corresponding functions, it can also be implemented in the form of a combination of hardware and software.

The above technical solution may be embodied in the form of a software product stored in a storage medium, including one or more instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to execute All or part of the steps of the method described in the above embodiments. The foregoing storage medium may be a non-transitory storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. A medium that can store program code, or a transitory storage medium.

Industrial applicability

The method, device and system for access control can fully utilize system resources by configuring access control configuration information.

Claims

A method of access control, comprising:

The base station configures access control configuration information, where the access control configuration information includes configuration information of a coverage level CEL of the serving cell of the base station;

The base station transmits the access control configuration information to a terminal.
The method of claim 1, wherein the base station configures access control configuration information, including at least one of the following:

Adding a CEL of the serving cell as an access control parameter, and configuring the cooperation use information, where the cooperation use information is used in conjunction with the CEL and one or more access control parameters except the CEL. information;

Adding an access control parameter of the corresponding access type AC for each CEL level by using the CEL of the serving cell as a reference;

Adding access level information mapped by a combination of at least two types of access control parameters of the serving cell, where the at least two types of access control parameters include: the CEL.
The method according to claim 1, wherein the access control configuration information further comprises: access control configuration information of one or more neighboring cells of the serving cell.
The method according to claim 3, wherein the configuring, by the base station, access control configuration information comprises: configuring access control configuration information of the one or more neighboring cells according to a minimum overhead.
The method according to claim 4, wherein the configuring the access control configuration information of the one or more neighboring cells according to a minimum overhead comprises one of the following:

Configuring configuration information of one or more access control parameters of the one or more neighboring cells;

The access control configuration information of the one or more neighboring cells is configured according to the coverage capability supported by the terminal.
The method of claim 3, wherein the transmitting, by the base station, the access control configuration information to the terminal comprises:

When the base station is in a predetermined scenario, the base station transmits the access control configuration information of the one or more neighboring cells to the terminal, where the predetermined scenario includes at least one of the following:

The load of the predetermined number of neighboring cells of the serving cell exceeds a threshold;

A predetermined number of neighboring cells restrict access to terminals of one or more access classes;

A predetermined number of neighboring cells restrict access to one or more low priority terminals.
The method of claim 1, wherein the serving cell is in a joint area with at least one neighboring cell;

The base station configures access control configuration information, including:

And acquiring, by the base station, access control configuration information of each neighboring cell in the joint area, and configuring joint access control configuration information of each of the cells;

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

The base station transmits, to the terminal, joint access control configuration information of each cell in the joint area.
The method according to any one of claims 1 to 7, wherein the base station transmits the access control configuration information to a terminal, including at least one of the following:

Broadcasting the access control configuration information by a system message;

The access control configuration information is carried by the RRC signaling by the radio resource or by the downlink data packet.
A method of access control, comprising:

Receiving, by the terminal, access control configuration information transmitted by the base station, where the access control configuration information includes configuration information of a coverage level CEL of the serving cell of the base station;

The terminal performs access control processing according to the access control configuration information.
The method of claim 9, wherein the access control configuration information comprises at least one of the following:

The CEL of the serving cell is used as an access control parameter and cooperation usage information, where the cooperation usage information is information used by the CEL and one or more access control parameters except the CEL;

Access control parameters of respective access-type ACs configured for each CEL level using the CEL of the serving cell as a reference;

The access level information mapped by the combination of the at least two types of access control parameters of the serving cell, where the at least two types of access control parameters include: the CEL.
The method according to claim 10, wherein the terminal performs access control processing according to the access control configuration information, including:

Determining at least one access control parameter of the terminal;

Performing an access control check according to the access control configuration information of the serving cell according to the at least one access control parameter, where each access control parameter includes at least one of the following: a CEL, an AC, and a service type.
The method according to claim 9, wherein the access control configuration information further comprises: access control configuration information of one or more neighboring cells of the serving cell.
The method according to any one of claims 9 to 12, wherein the terminal receives the access control configuration information transmitted by the base station, including:

Receiving, by the terminal, a system message that carries the access control configuration information that is broadcast by the base station, when the terminal is in a radio resource control RRC idle state;

When the terminal is in the RRC connected state, it receives the RRC signaling or downlink data packet that is transmitted by the base station and carries the access control configuration information.
The method according to claim 13, wherein the terminal is configured according to the access control when the terminal is in an RRC idle state and receives a system message that is broadcast by the base station and carries the access control configuration information. Information for access control processing, including:

The terminal performs a cell access control check when the cell is selected or reselected according to the access control configuration information, determines a cell set that the terminal is allowed to access, and performs quality measurement on each cell in the cell set. Determine the cell to be accessed.
The method according to claim 13, 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 terminal according to the method The access control configuration information is used for access control processing, including:

The terminal completes the RRC connection release and redirects to the cell indicated by the access control configuration information according to the access control configuration information; or, according to the access control configuration information, switches to the RRC idle state, and The cell reselection is performed according to the access control configuration information in the RRC idle state.
An access control device is applied to a base station, including:

a 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;

And a transmission module, configured to transmit the access control configuration information to the terminal.
The apparatus of claim 16, wherein the processing module is configured to configure access control configuration information in at least one of:

Adding a CEL of the serving cell as an access control parameter, and configuring the cooperation use information, where the cooperation use information is used by the CEL and one or more access control parameters except the CEL. information;

Adding an access control parameter of the corresponding access type AC for each CEL level by using the CEL of the serving cell as a reference;

Adding access level information mapped by a combination of at least two types of access control parameters of the serving cell, where the at least two types of access control parameters include: the CEL.
The apparatus according to claim 16, wherein the access control configuration information further comprises: access control configuration information of one or more neighboring cells of the serving cell.
The apparatus according to any one of claims 16 to 18, wherein the transmission module is configured to transmit the access control configuration information to a terminal by at least one of the following:

Broadcasting the access control configuration information by a system message;

The access control configuration information is carried by the RRC signaling by the radio resource or by the downlink data packet.
An access control device is applied to a terminal, including:

a receiving module, configured to receive access control configuration information transmitted by the base station, where the access control configuration information includes configuration information of a coverage level CEL of the serving cell of the base station;

The processing module is configured to perform access control processing according to the access control configuration information.
The apparatus of claim 20, wherein the access control configuration information comprises at least one of the following:

The CEL of the serving cell is used as an access control parameter and cooperation usage information, where the cooperation usage information is information used by the CEL and one or more access control parameters except the CEL;

Access control parameters of respective access-type ACs configured for each CEL level using the CEL of the serving cell as a reference;

The access level information mapped by the combination of the at least two types of access control parameters of the serving cell, where the at least two types of access control parameters include: the CEL.
The apparatus according to claim 20, wherein the access control configuration information further comprises: access control configuration information of one or more neighboring cells of the serving cell.
The apparatus according to any one of claims 20 to 22, wherein the receiving module is configured to receive access control configuration information transmitted by the base station by:

Receiving, by the base station, a system message that carries the access control configuration information when the terminal is in a radio resource control RRC idle state;

And receiving, by the base station, the RRC signaling or the downlink data packet that carries the access control configuration information when the terminal is in an RRC connected state.
The device according to claim 23, wherein

The processing module is configured to: when the terminal is in an RRC idle state, and the transmitting module receives the system message that is broadcast by the base station and carries the access control configuration information, according to the access control configuration Information for access control processing: and

Determining, according to the access control configuration information, a cell access control check when the cell is selected or reselected, determining a set of cells that the terminal is allowed to access, and performing quality measurement on each cell in the set of cells to determine Accessed cell;

The processing module is further configured to: when the terminal is in an RRC connected state, and the transmitting module receives the RRC signaling or the downlink data packet that is sent by the base station and carries the access control configuration information, according to the following manner, The access control configuration information is subjected to access control processing:

And completing the RRC connection release and redirecting to the cell indicated by the access control configuration information according to the access control configuration information; or switching to the RRC idle state according to the access control configuration information, and in the RRC idle state The cell reselection is performed according to the access control configuration information.
An access control system comprising the apparatus for access control of a base station according to any one of claims 16 to 19 and the apparatus for access control of the terminal according to any one of claims 20 to 24.
A computer readable storage medium storing computer executable instructions arranged to perform the method of any of claims 1-15.