CN108462978B - Access control method and device - Google Patents

Access control method and device Download PDF

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CN108462978B
CN108462978B CN201710095293.XA CN201710095293A CN108462978B CN 108462978 B CN108462978 B CN 108462978B CN 201710095293 A CN201710095293 A CN 201710095293A CN 108462978 B CN108462978 B CN 108462978B
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access control
control parameter
access
layer
coverage enhancement
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CN108462978A (en
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傅婧
梁靖
张元�
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0289—Congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
    • H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/08—Load balancing or load distribution

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application discloses an access control method and device, which are used for better controlling congestion, avoiding heavier network load and improving network performance. The application provides an access control method, which comprises the following steps: determining an access control parameter message of a cell, wherein the access control parameter message comprises a corresponding relation between a coverage enhancement grade in the cell and an access control parameter; and sending the access control parameter message to User Equipment (UE) in the cell.

Description

Access control method and device
Technical Field
The present application relates to the field of communications technologies, and in particular, to an access control method and apparatus.
Background
A terminal in the internet of things may be installed in a basement or other places with path loss greatly exceeding that of ordinary LTE equipment, and in order to enable the terminal to be normally served, a network side or the terminal needs to repeatedly transmit Downlink (DL) or Uplink (UL) data for multiple times, so that the opposite end can decode correct data through merging. The coverage enhancement level (CE level) of the UE is different, and the number of required retransmission times is different. The higher the CE level is, the weaker the coverage of the UE is currently located, the more the number of times of repeated transmission is required, so that the UE side or an evolved node b (eNB) can analyze correct data by merging and decoding. For different CE levels, there are also corresponding Packet Random Access Channel (PRACH) resources for initiating random Access.
When the network load is large, it is necessary to prohibit some UEs from accessing or to prohibit some services from being initiated through access control. The coverage enhancement levels (CE levels) of the UEs are different, the number of required repeated transmissions is different, and the occupied resources are also different. However, in the current access control mechanism, the coverage enhancement level is not considered, and congestion control cannot be reasonably performed, which may cause a heavy network load.
Disclosure of Invention
The embodiment of the application provides an access control method and device, which are used for better controlling congestion, avoiding heavier network load and improving network performance.
On the network side, the access control method provided by the embodiment of the application comprises the following steps:
determining an access control parameter message of a cell, wherein the access control parameter message comprises a corresponding relation between a coverage enhancement grade in the cell and an access control parameter;
and sending the access control parameter message to User Equipment (UE) in the cell.
By the method, an access control parameter message of a cell is determined, the access control parameter message comprises a corresponding relation between a coverage enhancement grade and an access control parameter in the cell, and the access control parameter message is sent to User Equipment (UE) in the cell, so that the UE can carry out access control according to the corresponding relation between the coverage enhancement grade and the access control parameter in the cell.
Optionally, the access control parameter message includes:
the corresponding relation between the access object and the coverage enhancement grade and the access control parameter; alternatively, the first and second electrodes may be,
a first correspondence of access objects to access control parameters, and a second correspondence of coverage enhancement levels to access control parameters.
Optionally, the access control parameter message further includes indication information of an access object that needs to be considered to cover the enhancement level.
Optionally, the access control parameter message is sent to the UE in the cell in a broadcast manner.
On a terminal side, an access control method provided by the embodiment of the application includes:
determining an access control parameter message of a cell, wherein the access control parameter message comprises a corresponding relation between a coverage enhancement grade in the cell and an access control parameter;
and performing access control on an access object according to the access control parameter message.
Optionally, the access control parameter message includes:
the corresponding relation between the access object and the coverage enhancement grade and the access control parameter; alternatively, the first and second electrodes may be,
a first correspondence of access objects to access control parameters, and a second correspondence of coverage enhancement levels to access control parameters.
Optionally, the access control parameter message further includes indication information of an access object that needs to be considered to cover the enhancement level.
Optionally, when the access control parameter message includes the first corresponding relationship and the second corresponding relationship, performing access control on an access object according to the access control parameter message, specifically including:
when the access object needs to consider the coverage enhancement grade, determining a first access control parameter corresponding to the access object according to the first corresponding relation, and determining a second access control parameter corresponding to the coverage enhancement grade according to the second corresponding relation;
and performing access control on the access object according to the first access control parameter and the second access control parameter.
Optionally, the radio resource control RRC layer of the UE, or a higher layer of the UE, or a media access control MAC layer of the UE performs access control on the access object according to the access control parameter message.
Optionally, when the RRC layer of the UE performs access control on an access object according to the access control parameter message, the method further includes:
and the RRC layer of the UE informs an access control result to a high layer of the UE for the high layer to judge whether to trigger a service, and/or informs a Media Access Control (MAC) layer of the UE for the MAC layer to judge whether to trigger a random access process.
Optionally, when the MAC layer prohibits initiating random access, the method further includes: the MAC layer informs the RRC layer of the prohibition result.
Optionally, when the MAC layer initiates the random access successfully, the method further includes: and the MAC layer resets the access control result or the access control parameter submitted by the RRC layer to allow random access to be started under all coverage levels.
Optionally, the determining the access control parameter message of the cell specifically includes: a Radio Resource Control (RRC) layer of User Equipment (UE) receives an access control parameter message of the cell in a mode of receiving a base station broadcast, acquires a corresponding relation between a coverage enhancement grade and the access control parameter from the RRC layer, and sends the corresponding relation to a high layer of the UE;
the high layer of the UE performs access control on an access object according to the corresponding relation between the coverage enhancement grade and the access control parameter;
or, the determining the access control parameter message of the cell specifically includes: a Radio Resource Control (RRC) layer of User Equipment (UE) receives an access control parameter message of the cell in a mode of receiving a base station broadcast, acquires a corresponding relation between a coverage enhancement grade and an access control parameter from the RRC layer, and sends the corresponding relation to a Media Access Control (MAC) layer of the UE;
and the Media Access Control (MAC) layer of the UE performs access control on an access object according to the corresponding relation between the coverage enhancement grade and the access control parameter.
On the network side, the access control apparatus provided in the embodiment of the present application includes:
a determining unit, configured to determine an access control parameter message of a cell, where the access control parameter message includes a correspondence between a coverage enhancement level in the cell and an access control parameter;
a sending unit, configured to send the access control parameter message to the UE in the cell.
Optionally, the access control parameter message includes:
the corresponding relation between the access object and the coverage enhancement grade and the access control parameter; alternatively, the first and second electrodes may be,
a first correspondence of access objects to access control parameters, and a second correspondence of coverage enhancement levels to access control parameters.
Optionally, the access control parameter message further includes indication information of an access object that needs to be considered to cover the enhancement level.
Optionally, the sending unit sends the access control parameter message to the UE in the cell in a broadcast manner.
On the terminal side, the access control device provided in the embodiment of the present application includes:
a first unit, configured to determine an access control parameter message of a cell, where the access control parameter message includes a correspondence between a coverage enhancement level in the cell and an access control parameter;
and the second unit is used for carrying out access control on the access object according to the access control parameter message.
Optionally, the access control parameter message includes:
the corresponding relation between the access object and the coverage enhancement grade and the access control parameter; alternatively, the first and second electrodes may be,
a first correspondence of access objects to access control parameters, and a second correspondence of coverage enhancement levels to access control parameters.
Optionally, the access control parameter message further includes indication information of an access object that needs to be considered to cover the enhancement level.
Optionally, when the access control parameter message includes the first corresponding relationship and the second corresponding relationship, the second unit is specifically configured to:
when the access object needs to consider the coverage enhancement grade, determining a first access control parameter corresponding to the access object according to the first corresponding relation, and determining a second access control parameter corresponding to the coverage enhancement grade according to the second corresponding relation;
and performing access control on the access object according to the first access control parameter and the second access control parameter.
Optionally, the second unit specifically is: a Radio Resource Control (RRC) layer of the UE, a higher layer of the UE, or a Media Access Control (MAC) layer of the UE.
Optionally, when the second unit is specifically an RRC layer of the UE, the second unit is further configured to:
and informing the access control result to a high layer of the UE for the high layer to judge whether to trigger the service, and/or informing a Media Access Control (MAC) layer of the UE for the MAC layer to judge whether to trigger the random access process.
Optionally, the ue further includes a third unit, as the MAC layer, where when the MAC layer prohibits initiating random access, the MAC layer informs the RRC layer of a prohibition result.
Optionally, the ue further includes a third unit, as the MAC layer, where when the MAC layer successfully initiates the random access, the MAC layer resets an access control result or an access control parameter submitted by the RRC layer to allow the random access to be initiated in all coverage classes.
Optionally, the first unit is used as a radio resource control RRC layer of the UE, and is specifically configured to: receiving the access control parameter message of the cell in a mode of receiving base station broadcast, acquiring the corresponding relation between the coverage enhancement grade and the access control parameter from the access control parameter message, and sending the corresponding relation to the high layer of the UE;
the second unit is used as the high layer of the UE and performs access control on an access object according to the corresponding relation between the coverage enhancement grade and the access control parameter;
or, the first unit is used as a radio resource control RRC layer of the UE, and is specifically configured to: receiving an access control parameter message of the cell in a mode of receiving base station broadcast, acquiring a corresponding relation between a coverage enhancement grade and an access control parameter from the access control parameter message, and sending the corresponding relation to a Media Access Control (MAC) layer of the UE;
and the second unit is used as a Media Access Control (MAC) layer of the UE to perform access control on an access object according to the corresponding relation between the coverage enhancement grade and the access control parameter.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flowchart of an access control method at a network side according to an embodiment of the present application;
fig. 2 is a flowchart illustrating an access control method at a terminal side according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of an access control apparatus on a network side according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an access control apparatus at a terminal side according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of another access control apparatus on a network side according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of another access control apparatus at a terminal side according to an embodiment of the present application.
Detailed Description
The embodiment of the application provides an access control method and device, which are used for better controlling congestion, avoiding heavier network load and improving network performance.
The terminal in the internet of things may be installed in a basement or other places with path loss greatly exceeding that of ordinary LTE equipment, and in order to enable the terminal to be normally served, a network side or the terminal needs to transmit DL or UL data repeatedly for many times, so that the opposite end can decode correct data through merging. The coverage enhancement levels (CE levels) of the UEs are different, and the number of required repeated transmissions is different, which brings more resource overhead. Different processing may be required for different coverage enhancement levels in access control. Therefore, the embodiment of the application provides an access control scheme, which better realizes congestion control by performing different access controls for different coverage enhancement levels, thereby improving network performance.
The following describes a method for access control proposed in an embodiment of the present application with reference to the accompanying drawings.
Referring to fig. 1, on a network side, for example, on a base station side, an access control method provided in an embodiment of the present application includes:
s101, determining an access control parameter message of a cell, wherein the access control parameter message comprises a corresponding relation between a coverage enhancement grade in the cell and an access control parameter;
s102, sending the access control parameter message to User Equipment (UE) in the cell.
By the method, an access control parameter message of a cell is determined, the access control parameter message comprises a corresponding relation between a coverage enhancement grade and an access control parameter in the cell, and the access control parameter message is sent to User Equipment (UE) in the cell, so that the UE can carry out access control according to the corresponding relation between the coverage enhancement grade and the access control parameter in the cell.
Optionally, the access control parameter message includes:
the corresponding relation between the access object and the coverage enhancement grade and the access control parameter; alternatively, the first and second electrodes may be,
a first correspondence of access objects to access control parameters, and a second correspondence of coverage enhancement levels to access control parameters.
The access object described in the embodiment of the present application may be a service type or a communication type, for example, an access control for an emergency call.
Optionally, the access control parameter message further includes indication information of an access object that needs to be considered to cover the enhancement level.
That is to say, in the embodiment of the present application, the access control parameter corresponding to each CE level of each access object may be directly notified to the UE, or the access control parameter of each access object, whether each access object considers the CE level, and the access control parameter corresponding to each CE level may be separately notified to the UE.
Optionally, the access control parameter message is sent to the UE in the cell in a broadcast manner.
Correspondingly, referring to fig. 2, on the terminal side, the access control method provided in the embodiment of the present application includes:
s201, determining an access control parameter message of a cell, wherein the access control parameter message comprises a corresponding relation between a coverage enhancement grade in the cell and an access control parameter;
s202, performing access control on an access object according to the access control parameter message.
Optionally, the access control parameter message includes:
the corresponding relation between the access object and the coverage enhancement grade and the access control parameter; alternatively, the first and second electrodes may be,
a first correspondence of access objects to access control parameters, and a second correspondence of coverage enhancement levels to access control parameters.
Optionally, the access control parameter message further includes indication information of an access object that needs to be considered to cover the enhancement level.
Optionally, when the access control parameter message includes the first corresponding relationship and the second corresponding relationship, performing access control on an access object according to the access control parameter message, specifically including:
when the access object needs to consider the coverage enhancement grade, determining a first access control parameter corresponding to the access object according to the first corresponding relation, and determining a second access control parameter corresponding to the coverage enhancement grade according to the second corresponding relation;
and performing access control on the access object according to the first access control parameter and the second access control parameter.
For example, when the network side broadcasts the access control parameters corresponding to each CE level individually, for the access control parameter of the access object at each CE level, the UE obtains the intersection of the access control parameter of the access object and the access control parameter at the corresponding CE level, and performs access control on the access object according to the intersection parameter.
Optionally, the radio resource control RRC layer of the UE, or a higher layer of the UE, or a media access control MAC layer of the UE performs access control on the access object according to the access control parameter message.
That is, besides the RRC layer being able to perform access control decision, the RRC layer of the UE may also directly notify the access control parameters corresponding to each coverage enhancement level to the upper layer or the MAC layer, and the upper layer or the MAC layer performs the access control decision according to the current coverage enhancement level and the corresponding access control parameters.
Optionally, when the RRC layer of the UE performs access control on an access object according to the access control parameter message, the method further includes:
and the RRC layer of the UE informs an access control result to a high layer of the UE for the high layer to judge whether to trigger a service, and/or informs a Media Access Control (MAC) layer of the UE for the MAC layer to judge whether to trigger a random access process.
That is to say, in the embodiment of the present application, a Radio Resource Control (RRC) layer of the UE performs access Control according to parameters in the broadcast, and notifies an access Control result corresponding to a corresponding coverage enhancement level to a corresponding higher layer, so as to determine whether to trigger a service by the higher layer; or informing the MAC layer to judge whether to trigger the corresponding random access process in the random access process.
Further, when the MAC layer initiates a random access procedure each time, it needs to determine whether to allow initiation of random access according to the CE level.
Optionally, when the MAC layer prohibits initiating random access, the method further includes: the MAC layer informs the RRC layer of the prohibition result.
Optionally, the prohibition result further includes a CE level for informing prohibition or a prohibition time.
Optionally, when the MAC layer initiates the random access successfully, the method further includes: and the MAC layer resets the access control result or the access control parameter submitted by the RRC layer to allow random access to be started under all coverage levels.
Optionally, the determining the access control parameter message of the cell specifically includes: a Radio Resource Control (RRC) layer of User Equipment (UE) receives an access control parameter message of the cell in a mode of receiving a base station broadcast, acquires a corresponding relation between a coverage enhancement grade and the access control parameter from the RRC layer, and sends the corresponding relation to a high layer of the UE;
the high layer of the UE performs access control on an access object according to the corresponding relation between the coverage enhancement grade and the access control parameter;
or, the determining the access control parameter message of the cell specifically includes: a Radio Resource Control (RRC) layer of User Equipment (UE) receives an access control parameter message of the cell in a mode of receiving a base station broadcast, acquires a corresponding relation between a coverage enhancement grade and an access control parameter from the RRC layer, and sends the corresponding relation to a Media Access Control (MAC) layer of the UE;
and the Media Access Control (MAC) layer of the UE performs access control on an access object according to the corresponding relation between the coverage enhancement grade and the access control parameter.
Specific description of the embodiments is given below:
example 1: and the cell broadcasts the access control parameter corresponding to each CE level under each access object.
Assuming that a cell supports coverage enhancement, the CE level under the coverage of the cell is: CE level 1, CE level2, CE level 3. The UE does not belong to any one particular ac (access class). The specific access control method includes:
the method comprises the following steps: the cell broadcasts access control parameters corresponding to each CE level under each access object, such as:
for the MMTEL voice under the SSAC, broadcasting the corresponding access control parameters:
when CE level is 1, the access control parameters are configured as { the access control prohibition factor is 0.85, the access control prohibition time is 32s, and access is allowed to the AC of special UE };
when CE level is 2, the access control parameters are configured as { the access control prohibition factor is 0.75, the access control prohibition time is 32s, and access is allowed to the AC of special UE };
when CE level is 3, the access control parameters are configured as { the access control prohibition factor is 0.6, the access control prohibition time is 64s, and access is allowed to the AC of special UE };
that is, in the present embodiment, the access control parameter message broadcasted by the base station side includes: the access object and the coverage enhancement level and the access control parameter.
Step two: the IMS layer of the UE triggers the AS layer of the UE to provide current MMTEL voice access control parameters, the AS layer of the UE determines that the UE is under CE level 1 according to the current Reference Signal Receiving Power (RSRP) result of the UE, but the UE does not belong to any special AC, and the UE submits an { access control prohibition factor of 0.85 and an access control prohibition time of 32s } to the IMS layer for the IMS layer to carry out access control.
It should be noted that, if a certain CE level under an access object does not have a corresponding access control parameter, the access object may be defaulted, and when the UE is at the CE level, the access is allowed.
Example 2: and the cell broadcasts whether each access object considers CE level and corresponding access control parameters under each CE level.
It is assumed that access control parameters of all PLMNs in a certain cell are the same and support coverage enhancement, and CE level levels under the coverage of the cell include CE level 1, CE level2, and CE level 3. The UE does not belong to any special ac (access class), and the UE side initiates Mobile originated data (MO data), that is, the access object is MO data. The specific access control method includes:
the method comprises the following steps: in addition to broadcasting access control parameters for each access object, the cell also broadcasts whether CE level levels are considered, such as:
the access control parameters of the MO data are { the access control prohibition factor is 0.8, the access control prohibition time is 64s, and access is allowed for the AC of special UE }, and different CE level levels are required to be considered when the preset bit indicates that the access control of the MO data is carried out;
and the cell also broadcasts the corresponding access control parameters under each CE level:
when CE level is 1, the access control parameters are configured as { the access control prohibition factor is 0.85, the access control prohibition time is 32s, and access is allowed to the AC of special UE };
when CE level is 2, the access control parameters are configured as { the access control prohibition factor is 0.75, the access control prohibition time is 32s, and access is allowed to the AC of special UE };
when CE level is 3, the access control parameters are configured as { the access control prohibition factor is 0.6, the access control prohibition time is 64s, and access is allowed to the AC of special UE };
that is to say, in this embodiment, the access control parameter message broadcasted by the base station includes: the first corresponding relation between the access object and the access control parameter needs to consider the indication information of the access object covering the enhancement level and the second corresponding relation between the coverage enhancement level and the access control parameter.
Step two: and initiating MO data by the UE side, and performing access control by the RRC layer of the UE side. Specifically, according to the information broadcasted by the cell, different CE level levels need to be considered when the MO data access control is performed. For the MOdata access control parameter under each CE level, the UE side takes the intersection of the access control parameter of the MO data and the access control parameter under the corresponding CE level, namely the corresponding access control prohibition factor takes the minimum value of the two; the access control prohibition time takes the maximum value of the access control prohibition time and the access control prohibition time; for AC access control of a particular UE, access is considered not to be allowed as long as there is indication information indicating that access is not allowed in both. Therefore, the UE side converts the MO data access control parameters under each CE level into:
when CE level is 1, the MO data access control parameters are configured to { the access control prohibition factor is 0.8, the access control prohibition time is 64s, and access is allowed for the AC of special UE };
when CE level is 2, the MO data access control parameters are configured to { the access control prohibition factor is 0.75, the access control prohibition time is 64s, and access is allowed for the AC of special UE };
when CE level is 3, the MO data access control parameters are configured to { the access control prohibition factor is 0.6, the access control prohibition time is 64s, and access is allowed for the AC of special UE };
the RRC layer of the UE executes MO access control and informs an MO access control result under each CE level to the MAC layer of the UE, and the MAC layer considers the access control result under the CE level corresponding to the random access process when initiating random access. For example, if the UE generates a random number rand of 0.7 and CE level is 1, the rand is less than 0.8, and the access control result is allowed to access; when CElevel is 2, rand is less than 0.75, and the access control result is allowed access; when CE level is 3, rand is greater than 0.6, access control result is access prohibition, and prohibition duration is (0.7+0.6 rand) × 64 ═ 76.16 s.
The RRC layer of the UE informs the MAC layer of the access control result of each CE level, the MAC layer considers the access control result in the random access process, for example, when the UE initiates the random access, the CE level at the moment is 2, the access is allowed, and the UE initiates the random access process; subsequently, because of the failure of random access, the UE initiates random access at the next CE level (CE level is 3), and according to the access control result, the access is prohibited under the condition, the UE does not initiate the random access process, and informs the prohibited result to the RRC layer (optionally, informs the prohibited CE level or the prohibited time), and the RRC layer executes the relevant access prohibition operation after receiving the result; alternatively, the first and second electrodes may be,
the RRC layer of the UE can directly inform the MAC layer of the MO data access control parameters under each CE level, when the MAC layer initiates random access, the MAC layer performs corresponding access control (the judgment criterion is operated with the RRC layer) according to the CE level corresponding to the random access process, if the access is allowed, the random access process is initiated, if the access is not allowed, the UE informs the RRC of an access forbidding instruction and access forbidding duration (duration calculation is processed with the RRC layer), and the RRC layer performs corresponding MO data access forbidding related operations;
if the UE random access process is successful, resetting an access control result or an access control parameter submitted by an RRC layer, namely allowing to initiate random access under all CE levels.
It should be noted that:
in embodiment 2, the access control parameter of each access object broadcasted by the cell may be a prohibition or non-prohibition indication directly, and the access control parameter corresponding to each CE level may also be a prohibition or non-prohibition indication directly, so that when the UE-side RRC layer performs access control, the access control parameter corresponding to the access corresponding to each CE level still takes the intersection of the access control parameter of the access object and the access control parameter corresponding to the CE level.
For example, the access control parameter of the access control object MO data is { the access control barring factor is 0.85, the access control barring time is 64s, and access is allowed to the AC of the special UE }; the corresponding access control parameters under each CE level are: access is allowed under CE level 1, access is allowed under CE level2, and access is forbidden under CE level 3; then, for the MO data access control parameter at each CE level, the following steps are performed:
when CE level is 1, the MO data access control parameters are configured to { the access control prohibition factor is 0.85, the access control prohibition time is 64s, and access is allowed for the AC of special UE };
when CE level is 2, the MO data access control parameters are configured to { the access control prohibition factor is 0.75, the access control prohibition time is 64s, and access is allowed for the AC of special UE };
and when the CE level is 3, the MO data is forbidden to be accessed.
The remaining steps are similar to step two in example 2.
For example, the access control parameter for the access object EAB is { valid for all UEs, and barringbitmap is 1100001000 }; the corresponding access control parameters under each CE level are: access is allowed under CE level 1, access is allowed under CE level2, and access is forbidden under CE level 3; the access control parameters for EAB at each CE level are transformed into:
when CE level is 1, the MO data access control parameter is configured to be effective to all UE, and barringbitmap is 1100001000;
when CE level is 2, the MO data access control parameter is configured to be effective to all UE, and barringbitmap is 1100001000;
and when the CE level is 3, the MO data is forbidden to be accessed.
In the same manner as the second step in embodiment 2, the RRC layer of the UE performs MO access control, and notifies the MAC layer of the UE of an MO access control result at each CE level, and when initiating random access, the MAC layer considers an access control result at a CE level corresponding to a random access process, and if the UE belongs to AC0 and a bit corresponding to the MAC level is 1 according to a barring bitmap, the RRC layer prohibits access when the CE level is 1, prohibits access when the CE level is 2, and prohibits access when the CE level is 3, and notifies the MAC layer; or the RRC layer of the UE informs the MAC layer of the access control parameter of the EAB at each CE level, and when the MAC layer initiates random access, performs corresponding access control according to the CE level corresponding to the random access process (the judgment criterion is operated as the RRC layer).
An apparatus corresponding to the above method is described below.
Referring to fig. 3, on a network side, for example, a base station side, an access control apparatus provided in an embodiment of the present application includes:
a determining unit 11, configured to determine an access control parameter message of a cell, where the access control parameter message includes a correspondence between a coverage enhancement level in the cell and an access control parameter;
a sending unit 12, configured to send the access control parameter message to the UE in the cell.
Optionally, the access control parameter message includes:
the corresponding relation between the access object and the coverage enhancement grade and the access control parameter; alternatively, the first and second electrodes may be,
a first correspondence of access objects to access control parameters, and a second correspondence of coverage enhancement levels to access control parameters.
Optionally, the access control parameter message further includes indication information of an access object that needs to be considered to cover the enhancement level.
Optionally, the sending unit sends the access control parameter message to the UE in the cell in a broadcast manner.
Correspondingly, referring to fig. 4, at a terminal side, an access control apparatus provided in an embodiment of the present application includes:
a first unit 21, configured to determine an access control parameter message of a cell, where the access control parameter message includes a correspondence between a coverage enhancement level in the cell and an access control parameter;
a second unit 22, configured to perform access control on an access object according to the access control parameter message.
Optionally, the access control parameter message includes:
the corresponding relation between the access object and the coverage enhancement grade and the access control parameter; alternatively, the first and second electrodes may be,
a first correspondence of access objects to access control parameters, and a second correspondence of coverage enhancement levels to access control parameters.
Optionally, the access control parameter message further includes indication information of an access object that needs to be considered to cover the enhancement level.
Optionally, when the access control parameter message includes the first corresponding relationship and the second corresponding relationship, the second unit is specifically configured to:
when the access object needs to consider the coverage enhancement grade, determining a first access control parameter corresponding to the access object according to the first corresponding relation, and determining a second access control parameter corresponding to the coverage enhancement grade according to the second corresponding relation;
and performing access control on the access object according to the first access control parameter and the second access control parameter.
Optionally, the second unit specifically is: a Radio Resource Control (RRC) layer of the UE, a higher layer of the UE, or a Media Access Control (MAC) layer of the UE.
Optionally, when the second unit is specifically an RRC layer of the UE, the second unit is further configured to:
and informing the access control result to a high layer of the UE for the high layer to judge whether to trigger the service, and/or informing a Media Access Control (MAC) layer of the UE for the MAC layer to judge whether to trigger the random access process.
Optionally, the ue further includes a third unit, as the MAC layer, where when the MAC layer prohibits initiating random access, the MAC layer informs the RRC layer of a prohibition result.
Optionally, the ue further includes a third unit, as the MAC layer, where when the MAC layer successfully initiates the random access, the MAC layer resets an access control result or an access control parameter submitted by the RRC layer to allow the random access to be initiated in all coverage classes.
Optionally, the first unit is used as a radio resource control RRC layer of the UE, and is specifically configured to: receiving the access control parameter message of the cell in a mode of receiving base station broadcast, acquiring the corresponding relation between the coverage enhancement grade and the access control parameter from the access control parameter message, and sending the corresponding relation to the high layer of the UE;
the second unit is used as the high layer of the UE and performs access control on an access object according to the corresponding relation between the coverage enhancement grade and the access control parameter;
or, the first unit is used as a radio resource control RRC layer of the UE, and is specifically configured to: receiving an access control parameter message of the cell in a mode of receiving base station broadcast, acquiring a corresponding relation between a coverage enhancement grade and an access control parameter from the access control parameter message, and sending the corresponding relation to a Media Access Control (MAC) layer of the UE;
and the second unit is used as a Media Access Control (MAC) layer of the UE to perform access control on an access object according to the corresponding relation between the coverage enhancement grade and the access control parameter.
Each unit can be realized by a component such as a processor.
Referring to fig. 5, on a network side, for example, a base station side, another access control apparatus provided in the embodiment of the present application includes:
the processor 500, which is used to read the program in the memory 520, executes the following processes:
determining an access control parameter message of a cell, wherein the access control parameter message comprises a corresponding relation between a coverage enhancement grade in the cell and an access control parameter;
the access control parameter message is sent to the user equipment UE in the cell through the transceiver 510.
Optionally, the access control parameter message includes:
the corresponding relation between the access object and the coverage enhancement grade and the access control parameter; alternatively, the first and second electrodes may be,
a first correspondence of access objects to access control parameters, and a second correspondence of coverage enhancement levels to access control parameters.
Optionally, the access control parameter message further includes indication information of an access object that needs to be considered to cover the enhancement level.
Optionally, the processor 500 sends the access control parameter message to the user equipment UE in the cell through the transceiver 510 in a broadcast manner.
A transceiver 510 for receiving and transmitting data under the control of the processor 500.
Wherein in fig. 5, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 500, and various circuits, represented by memory 520, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 510 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 500 in performing operations.
The processor 500 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD)
Correspondingly, referring to fig. 6, on the terminal side, another access control apparatus provided in the embodiment of the present application includes:
the processor 600, which is used to read the program in the memory 620, executes the following processes:
determining an access control parameter message of a cell, wherein the access control parameter message comprises a corresponding relation between a coverage enhancement grade in the cell and an access control parameter;
and performing access control on an access object according to the access control parameter message.
Optionally, the access control parameter message includes:
the corresponding relation between the access object and the coverage enhancement grade and the access control parameter; alternatively, the first and second electrodes may be,
a first correspondence of access objects to access control parameters, and a second correspondence of coverage enhancement levels to access control parameters.
Optionally, the access control parameter message further includes indication information of an access object that needs to be considered to cover the enhancement level.
Optionally, when the access control parameter message includes the first corresponding relationship and the second corresponding relationship, the processor 600 is specifically configured to:
when the access object needs to consider the coverage enhancement grade, determining a first access control parameter corresponding to the access object according to the first corresponding relation, and determining a second access control parameter corresponding to the coverage enhancement grade according to the second corresponding relation;
and performing access control on the access object according to the first access control parameter and the second access control parameter.
Alternatively, the processor 600 may act as: a Radio Resource Control (RRC) layer of the UE, a higher layer of the UE, or a Media Access Control (MAC) layer of the UE.
Optionally, when the processor 600 is specifically an RRC layer of the UE, the processor 600 is further configured to:
the access control result is notified to the higher layer of the UE through the transceiver 610 for the higher layer to determine whether to trigger a service, and/or notified to the media access control MAC layer of the UE through the transceiver 610 for the MAC layer to determine whether to trigger a random access procedure.
Optionally, the processor 600 may further serve as a MAC layer, and when the MAC layer prohibits initiating random access, the MAC layer informs the RRC layer of a prohibition result.
Optionally, the processor 600 may further serve as a MAC layer, and when the MAC layer initiates the random access successfully, the MAC layer resets an access control result or an access control parameter submitted by the RRC layer to allow the random access to be initiated in all coverage levels.
Optionally, when the processor 600 is used as a radio resource control RRC layer of the user equipment UE, the processor is specifically configured to: receiving the access control parameter message of the cell by the transceiver 610 in a manner of receiving a base station broadcast, acquiring a corresponding relationship between a coverage enhancement level and an access control parameter from the access control parameter message, and transmitting the coverage enhancement level and the access control parameter message to a higher layer of the UE by the transceiver 610;
the processor 600 may also be used as a higher layer of the UE, and perform access control on an access object according to the correspondence between the coverage enhancement level and an access control parameter;
or, when the processor 600 is used as a radio resource control RRC layer of the user equipment UE, the processor is specifically configured to: receiving an access control parameter message of the cell in a mode of receiving base station broadcast, acquiring a corresponding relation between a coverage enhancement grade and an access control parameter from the access control parameter message, and sending the corresponding relation to a Media Access Control (MAC) layer of the UE;
the processor 600 may also be used as a media access control MAC layer of the UE, and perform access control on an access object according to the correspondence between the coverage enhancement level and an access control parameter.
A transceiver 610 for receiving and transmitting data under the control of the processor 600.
Where in fig. 6, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 600 and memory represented by memory 620. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 610 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. For different user devices, the user interface 630 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.
The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 600 in performing operations.
Alternatively, the processor 600 may be a CPU (central processing unit), an ASIC (Application specific integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device).
To sum up, the access control scheme provided in the embodiment of the present application performs different access controls for different coverage enhancement levels, thereby better implementing congestion control.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (20)

1. An access control method, comprising:
determining an access control parameter message of a cell, wherein the access control parameter message comprises a corresponding relation between a coverage enhancement grade in the cell and an access control parameter; wherein, different coverage enhancement grades correspond to different access control parameters;
sending the access control parameter message to User Equipment (UE) in the cell;
wherein the access control parameter message includes:
the corresponding relation between the access object and the coverage enhancement grade and the access control parameter; alternatively, the first and second electrodes may be,
a first correspondence of access objects to access control parameters, and a second correspondence of coverage enhancement levels to access control parameters.
2. The method of claim 1, wherein the access control parameter message further includes indication information of an access object that needs to be considered to cover an enhanced level.
3. An access control method, comprising:
determining an access control parameter message of a cell, wherein the access control parameter message comprises a corresponding relation between a coverage enhancement grade in the cell and an access control parameter; wherein, different coverage enhancement grades correspond to different access control parameters;
performing access control on an access object according to the access control parameter message;
the access control parameter message comprises:
the corresponding relation between the access object and the coverage enhancement grade and the access control parameter; alternatively, the first and second electrodes may be,
a first correspondence of access objects to access control parameters, and a second correspondence of coverage enhancement levels to access control parameters.
4. The method of claim 3, wherein the access control parameter message further includes indication information of an access object that needs to be considered to cover an enhanced level.
5. The method according to claim 4, wherein when the access control parameter message includes the first corresponding relationship and the second corresponding relationship, performing access control on an access object according to the access control parameter message specifically includes:
when the access object needs to consider the coverage enhancement grade, determining a first access control parameter corresponding to the access object according to the first corresponding relation, and determining a second access control parameter corresponding to the coverage enhancement grade according to the second corresponding relation;
and performing access control on the access object according to the first access control parameter and the second access control parameter.
6. The method of claim 3, wherein a Radio Resource Control (RRC) layer of the UE, or a higher layer of the UE, or a Media Access Control (MAC) layer of the UE performs access control on the access object according to the access control parameter message.
7. The method of claim 6, wherein when the RRC layer of the UE performs access control on the access object according to the access control parameter message, the method further comprises:
and the RRC layer of the UE informs an access control result to a high layer of the UE for the high layer to judge whether to trigger a service, and/or informs a Media Access Control (MAC) layer of the UE for the MAC layer to judge whether to trigger a random access process.
8. The method of claim 7, wherein when the MAC layer prohibits initiating random access, further comprising: the MAC layer informs the RRC layer of the prohibition result.
9. The method of claim 7, wherein when the MAC layer initiated random access is successful, further comprising: and the MAC layer resets the access control result or the access control parameter submitted by the RRC layer to allow random access to be started under all coverage levels.
10. The method according to claim 3, wherein the determining the access control parameter message of the cell specifically includes: a Radio Resource Control (RRC) layer of User Equipment (UE) receives an access control parameter message of the cell in a mode of receiving a base station broadcast, acquires a corresponding relation between a coverage enhancement grade and the access control parameter from the RRC layer, and sends the corresponding relation to a high layer of the UE;
the high layer of the UE performs access control on an access object according to the corresponding relation between the coverage enhancement grade and the access control parameter;
or, the determining the access control parameter message of the cell specifically includes: a Radio Resource Control (RRC) layer of User Equipment (UE) receives an access control parameter message of the cell in a mode of receiving a base station broadcast, acquires a corresponding relation between a coverage enhancement grade and an access control parameter from the RRC layer, and sends the corresponding relation to a Media Access Control (MAC) layer of the UE;
and the Media Access Control (MAC) layer of the UE performs access control on an access object according to the corresponding relation between the coverage enhancement grade and the access control parameter.
11. An access control device, comprising:
a determining unit, configured to determine an access control parameter message of a cell, where the access control parameter message includes a correspondence between a coverage enhancement level in the cell and an access control parameter; wherein, different coverage enhancement grades correspond to different access control parameters;
a sending unit, configured to send the access control parameter message to a user equipment UE in the cell;
the access control parameter message comprises:
the corresponding relation between the access object and the coverage enhancement grade and the access control parameter; alternatively, the first and second electrodes may be,
a first correspondence of access objects to access control parameters, and a second correspondence of coverage enhancement levels to access control parameters.
12. The apparatus of claim 11, wherein the access control parameter message further comprises indication information of an access object that needs to be considered to cover an enhanced level.
13. An access control device, comprising:
a first unit, configured to determine an access control parameter message of a cell, where the access control parameter message includes a correspondence between a coverage enhancement level in the cell and an access control parameter; wherein, different coverage enhancement grades correspond to different access control parameters;
a second unit, configured to perform access control on an access object according to the access control parameter message;
the access control parameter message comprises:
the corresponding relation between the access object and the coverage enhancement grade and the access control parameter; alternatively, the first and second electrodes may be,
a first correspondence of access objects to access control parameters, and a second correspondence of coverage enhancement levels to access control parameters.
14. The apparatus of claim 13, wherein the access control parameter message further comprises indication information of an access object that needs to be considered to cover an enhanced level.
15. The apparatus according to claim 14, wherein when the first corresponding relationship and the second corresponding relationship are included in the access control parameter message, the second unit is specifically configured to:
when the access object needs to consider the coverage enhancement grade, determining a first access control parameter corresponding to the access object according to the first corresponding relation, and determining a second access control parameter corresponding to the coverage enhancement grade according to the second corresponding relation;
and performing access control on the access object according to the first access control parameter and the second access control parameter.
16. The device according to claim 13, wherein the second unit is specifically: a Radio Resource Control (RRC) layer of the UE, a higher layer of the UE, or a Media Access Control (MAC) layer of the UE.
17. The apparatus of claim 16, wherein when the second unit is specifically an RRC layer of the UE, the second unit is further configured to:
and informing the access control result to a high layer of the UE for the high layer to judge whether to trigger the service, and/or informing a Media Access Control (MAC) layer of the UE for the MAC layer to judge whether to trigger the random access process.
18. The apparatus according to claim 17, further comprising a third unit as the MAC layer, wherein when the MAC layer prohibits initiation of random access, the MAC layer informs the RRC layer of a prohibition result.
19. The apparatus of claim 17, further comprising a third unit as the MAC layer, wherein when the MAC layer initiates random access successfully, the MAC layer resets an access control result or an access control parameter submitted by an RRC layer to allow random access to be initiated in all coverage levels.
20. The apparatus according to claim 13, wherein the first unit, as a radio resource control, RRC, layer of a user equipment, UE, is specifically configured to: receiving the access control parameter message of the cell in a mode of receiving base station broadcast, acquiring the corresponding relation between the coverage enhancement grade and the access control parameter from the access control parameter message, and sending the corresponding relation to the high layer of the UE;
the second unit is used as the high layer of the UE and performs access control on an access object according to the corresponding relation between the coverage enhancement grade and the access control parameter;
or, the first unit is used as a radio resource control RRC layer of the UE, and is specifically configured to: receiving an access control parameter message of the cell in a mode of receiving base station broadcast, acquiring a corresponding relation between a coverage enhancement grade and an access control parameter from the access control parameter message, and sending the corresponding relation to a Media Access Control (MAC) layer of the UE;
and the second unit is used as a Media Access Control (MAC) layer of the UE to perform access control on an access object according to the corresponding relation between the coverage enhancement grade and the access control parameter.
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