CN102348254B - Access control method, system and device - Google Patents

Access control method, system and device Download PDF

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Publication number
CN102348254B
CN102348254B CN201110306733.4A CN201110306733A CN102348254B CN 102348254 B CN102348254 B CN 102348254B CN 201110306733 A CN201110306733 A CN 201110306733A CN 102348254 B CN102348254 B CN 102348254B
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China
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access control
described
control parameter
access
parameter
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CN201110306733.4A
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Chinese (zh)
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CN102348254A (en
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张惠英
陈东
张英
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电信科学技术研究院
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Abstract

The embodiment of the invention relates to the technical field of wireless communication and particularly relates to an access control method, system and device which are used for reducing the changing frequency of the system information during the variation of ACB (access class barring) parameters. In the access control method provided by the embodiment of the invention, when an RRC (radio resource control) connection establishment request needs to be initialized, user equipment can judge whether the RRC connection establishment request is allowed to be initialized or not according to access control parameters; and if not, the user equipment adjusts the access control parameters and returns to the step of judging whether the RRC connection establishment request is allowed to be initialized or not based on the access control parameters. As the access control parameters can be adjusted in an adaptive manner by the user equipment, the access delay of the terminal can be reduced, the information change of the system can be reduced and the network resource utilization can be improved.

Description

A kind of method, system and equipment of access control

Technical field

The present invention relates to wireless communication technology field, particularly a kind of method of access control, system and equipment.

Background technology

For subscriber equipment (UE), each subscriber equipment can have an AC (Access Class, access grade), and AC is the number in (0...9).AC can be kept in the SIM/USIM card of subscriber equipment.In addition, some subscriber equipment also may have special AC (11...15).The subscriber equipment with special AC has higher priority in some applications.

UMTS (Universal Mobile TelecommunicationSystem at present, universal mobile telecommunications system) and LTE (Long Term Evolution, Long Term Evolution) access control scheme is all that AC based on subscriber equipment forms in system, be referred to as ACB (Access Class Barrinig, access grade is forbidden) mechanism.For UMTS and LTE system, the concrete operations of ACB are again different.

For UMTS, ACB mechanism is whether can provide this AC by the barred indication of (forbidding) for each AC (0...15).The ACB parameter of UMTS is included in SIB (System Information Block, system information block) 3, and in the time that network monitor maybe needs to forbid certain user's equipment access to generation is congested, network side can be broadcasted ACB in SIB3; When reading, subscriber equipment in SIB3, carries ACB parameter, before initiating random access, can be kept at SIM (Subscriber Identity Module according to the content of ACB in SIB3 and subscriber equipment, user identification module) AC in/USIM (Universal Subscriber Identity Module, universal subscriber identity module) card judges whether to be allowed to access by network.

For LTE system, AC be 0...9 subscriber equipment use be identical access probability, forbid the factor (ac-BarringFactor)+the forbid mode of duration (ac-BarringTime), what the subscriber equipment that is 11...15 for AC used is the mode of bitmap (bit map).The ACB parameter of LTE system is included in SIB2, and in the time that network monitor maybe needs to forbid certain user's equipment access to generation is congested, network side can be broadcasted ACB in SIB2; When reading, subscriber equipment in SIB2, carries ACB parameter, that the subscriber equipment of 0...9 is before initiating random access for AC, first generate a random number ' rand ' (0≤rand < 1), if ' rand ' < is ac-BarringFactor, subscriber equipment can be initiated access, otherwise start timer " Tbarring "=(0.7+0.6*rand) * ac-BarringTime, within the scope of timer, the rrc layer of subscriber equipment can not initiated random access again.It is the subscriber equipment of 11...15 for AC, when peculiar one of the ratio corresponding in (ac-Barring For Special AC) parameter of forbidding of special AC is set to 0, just can directly initiate access, otherwise, subscriber equipment can generate a random number ' rand ' (0≤rand < 1), if ' rand ' < is ac-BarringFactor, subscriber equipment can be initiated access, otherwise start timer " Tbarring "=(0.7+0.6*rand) * ac-BarringTime, within the scope of timer, the rrc layer of subscriber equipment can not initiated random access again.

M2M (Machine to Machine, machine is to machine) communication technology causes people's attention gradually, 3GPP (3rd Generation Partnership Project, 3G (Third Generation) Moblie standardization body) standardization body also sets up the project M2M technology specialized in, therefore, all need to support MTC communication for UMTS and LTE system.

M2M communication is different from existing H2H (Human to Human, Human To Human) subscriber equipment, M2M subscriber equipment has some characteristics, such as, M2M subscriber equipment quantity is far away more than present H2H subscriber equipment, the communication of M2M subscriber equipment has time delay tolerance characteristic, and M2M subscriber equipment it is generally acknowledged to have lower priority etc.Many just because of M2M subscriber equipment quantity, for example, so in some scene, M2M subscriber equipment sends data or has a power failure and powers on afterwards again, more easily causes Access Network congested simultaneously.For this situation, standard proposes to use the mode of EAB (Extended Access Barring, the access control of expansion) to solve this problem at present.EAB thinks the expansion based on current ACB basis, has the characteristic similar with ACB and using method.

In the time that network congestion occurs, the possible a kind of implementation method of network is to adjust dynamically ACB list (UMTS) or ac-BarringFactor/ac-BarringTime (LTE system) better to save random access resource according to current congestion condition, reduces the access delay of subscriber equipment.Especially, for the ACB mechanism of UMTS, network side may, by changing by the AC of barred dynamically, be avoided the subscriber equipment that occurs some AC always by barred, and cause accessing the generation of phenomenon.These implementation methods can embody better fairness.Especially access in the congested scene of the access that causes for a large amount of M2M subscriber equipmenies simultaneously, may need to change more frequently EAB parameter and just can reach comparatively ideal effect.

But in current technology, can only realize network side by the renewal of system message and change dynamically ACB parameter.The frequent variations of system message, needs the frequent read system message of subscriber equipment, causes power consumption.For being only suitable for a certain kind equipment, in the EAB mechanism of MTC equipment, if system message frequent variations, because system message is cell-level, all subscriber equipmenies of community, are that M2M type of user equipment or H2H subscriber equipment all need read system message, once system message alteration, even if the content of these system messages is that H2H subscriber equipment also will go to read, so also can have influence on H2H subscriber equipment for the subscriber equipment of M2M type.

In sum, at present can only be by the renewal of system message, realize network side and change dynamically ACB parameter, thereby cause system message frequent variations.

Summary of the invention

Method, system and the equipment of a kind of access control that the embodiment of the present invention provides, in order in the time carrying out the variation of ACB parameter, reduce the change frequency of system message.

The method of a kind of access control that the embodiment of the present invention provides, comprising:

When subscriber equipment is initiated radio resource control RRC connection foundation request at needs, judge whether to allow to initiate RRC connection foundation request according to access control parameter;

Described subscriber equipment does not allow to initiate, after RRC connection foundation request, to adjust described access control parameter definite, and returns to the step that judges whether to allow initiation RRC connection foundation request according to access control parameter.

The method of the another kind of access control that the embodiment of the present invention provides, comprising:

Network side is determined initial access control parameter and for adjusting the adjustment parameter of described access control parameter;

Described network side is to the subscriber equipment described initial access control parameter of transmission with for adjusting the adjustment parameter of described access control parameter, for notifying described subscriber equipment to carry out access control according to described initial access control parameter, and determining that not allowing to initiate RRC connects after the request of foundation, adjusts access control parameter according to described adjustment parameter.

The subscriber equipment of a kind of access control that the embodiment of the present invention provides, comprising:

Judge module, while setting up request, judges whether that according to access control parameter allowing to initiate RRC connection sets up request for initiate RRC connection at needs;

Adjusting module, for determining that not allowing to initiate RRC connects after the request of foundation, adjusts described access control parameter, and triggers described judge module and continue to judge whether that according to access control parameter allowing to initiate RRC connects the request of foundation.

The network equipment of a kind of access control that the embodiment of the present invention provides, comprising:

Determination module, for definite initial access control parameter with for adjusting the adjustment parameter of described access control parameter;

Sending module, be used for to the subscriber equipment described initial access control parameter of transmission with for adjusting the adjustment parameter of described access control parameter, for notifying described subscriber equipment to carry out access control according to described initial access control parameter, and determining that not allowing to initiate RRC connects after the request of foundation, adjusts access control parameter according to described adjustment parameter.

The system of a kind of access control that the embodiment of the present invention provides, comprising:

Network equipment, for definite initial access control parameter with for adjusting the adjustment parameter of described access control parameter, and to the subscriber equipment described initial access control parameter of transmission with for adjusting the adjustment parameter of described access control parameter;

Subscriber equipment, in the time that needs are initiated RRC connection foundation request, judge whether that according to access control parameter allowing to initiate RRC connects the request of foundation, determining that not allowing to initiate RRC connects after the request of foundation, adjust described access control parameter, and return to the step that judges whether to allow to initiate RRC connection foundation request according to access control parameter.

Regulate access control parameter owing to having realized subscriber equipment self adaptation, thereby reduced the access delay of terminal, reduce the change of the message of system, improve network resource usage efficiency.

Accompanying drawing explanation

Figure 1A is the method flow schematic diagram of the parameter that embodiment of the present invention network side broadcast access control is relevant;

Figure 1B is the system configuration schematic diagram of embodiment of the present invention access control;

Fig. 2 is the structural representation of embodiment of the present invention subscriber equipment;

Fig. 3 is the structural representation of embodiment of the present invention network equipment;

Fig. 4 is the method flow schematic diagram that embodiment of the present invention subscriber equipment carries out access control;

Fig. 5 is the method flow schematic diagram that embodiment of the present invention network side notifying user equipment is adjusted parameter;

Fig. 6 is the method flow schematic diagram that embodiment of the present invention subscriber equipment is adjusted access control parameter.

Embodiment

For can only be by the renewal of system message in background technology, realize network side and change dynamically ACB parameter, thereby cause the problem of system message frequent variations, embodiment of the present invention subscriber equipment does not allow to initiate RRC (Radio Resource Control determining, Radio Resource control) connect after the request of foundation, adjust access control parameter.Regulate access control parameter (being ACB parameter) owing to having realized subscriber equipment self adaptation, thereby reduced the access delay of terminal, reduce the change of the message of system, improve network resource usage efficiency.

Preferably, the network of the embodiment of the present invention passes through the relevant parameter of system information broadcast access control, the access control relevant parameter in subscriber equipment saved system information, and the ACB parameter using according to the rule adjustment oneself of agreement.Network needn't dynamically change ACB parameter more frequently.Wherein, above-mentioned access control relevant parameter can be defined ACB parameter in current standard, and the needs of rule according to a preconcerted arrangement that can also be extra comprise more heterogeneous related parameter.

The method of the parameter that as shown in Figure 1A, network side broadcast access control is relevant comprises:

Step 101, network side monitor RAN (Radio Access Network, wireless access network) and overload, the relevant parameter of broadcast access control;

Step 102, subscriber equipment are received and are preserved the relevant parameter of access control of receiving;

Step 103, initiate RRC when the NAS of subscriber equipment layer request rrc layer and connect and set up when request, use the relevant parameter of access control of having preserved to start access control flow process.

Wherein, the embodiment of the present invention can be applied in LTE system or UTMS, can also be applied in other systems that need to adjust access control parameter.

Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.

In declarative procedure below, first implement to describe from the cooperation of network side and user equipment side, finally describe from the enforcement of network side and user equipment side respectively, but this does not also mean that the two must coordinate enforcement, in fact, separate while implementing when network side and user equipment side, also solved respectively in network side, the existing problem of user equipment side, when just the two is combined with, can obtain better technique effect.

As shown in Figure 1B, the system of embodiment of the present invention access control comprises: network equipment 10 and subscriber equipment 20.

Network equipment 10, for determining initial access control parameter and for adjusting the adjustment parameter of access control parameter, and sends initial access control parameter and for adjusting the adjustment parameter of access control parameter to subscriber equipment 20;

Subscriber equipment 20, in the time that needs are initiated RRC connection foundation request, judge whether that according to access control parameter allowing to initiate RRC connects the request of foundation, determining that not allowing to initiate RRC connects after the request of foundation, adjust access control parameter, and return to the step that judges whether to allow to initiate RRC connection foundation request according to access control parameter.

Such as, subscriber equipment 20 judges whether that according to initial access control parameter allowing to initiate RRC connects the request of foundation for the first time, if allowed, determine that access control parameter allows to initiate RRC and connects the request of foundation (if having other restriction also to need to continue judgement); Otherwise initial access control parameter, and then judge whether that according to the access control parameter after adjusting allowing to initiate RRC connects the request of foundation, if allowed, determine that access control parameter allows to initiate RRC and connects the request of foundation (if having other restriction also to need to continue judgement); Otherwise continue to adjust access control parameter, the like.

Preferably, subscriber equipment 20 is adjusted access control parameters according to one or more in following rule:

Forbidden AC in rule 1, periodic roll-call access control parameter;

Rule 2, at interval of a period of time, reduce or increase be prohibited access AC number;

Rule 3, at interval of a period of time, increase or reduce access barred parameter value (accessing the factor) based on certain step value;

Rule 4, at interval of a period of time, increase or reduce the duration (within the scope of timer, the rrc layer of subscriber equipment can not initiated random access again) of access barred timer based on certain step value;

Rule 5, the effective duration of access control parameter is set.

What accordingly, network equipment 10 sent includes but not limited at least one of following parameters for adjusting the adjustment parameter of access control parameter:

Adjust the initial cycle of access control parameter, the initial step value of adjusting access control parameter and initial step value and adjust interval.

For rule 1, such as network equipment 10 is at SIB (System Information Broadcast, system information broadcast) to broadcast ACB parameter in 3 be ACB list, and wherein the terminal of AC 1-9 is all prohibited, and only allowing AC is that 0 subscriber equipment is initiated RRC and is linked into network.After through after a while (such as the interval=25*SIB cycle), subscriber equipment thinks that current ACB list is AC 0, and the subscriber equipment of 2-9 is all prohibited, and only allowing AC is that 1 subscriber equipment is initiated RRC and is linked into network.By that analogy, terminal just converts ACB list so long every the interval cycle.So more embody justice avoids network to change frequently system message simultaneously.

In force, the cycle is that agreement regulation or subscriber equipment are determined or configured by network side.

If subscriber equipment 20 oneself is determined the cycle, preferably subscriber equipment 20 is determined the cycle according to the initial access control parameter of network side configuration.Be n such as configuration in initial access parameter allows access AC number, the cycle can be n*T so, and wherein T is basic chronomere, can be the value of agreement regulation.That is to say, cycle and permission access grade number are the relations of multiple.

In the above example, interval can be, but not limited to relevant to SFN, for example interval=50, other AC outside AC0 are by barred, this terminal of current time determines that according to (SFN mod (50*10))/50+ACnotbarred which AC can access, if multiple AC are not by barred in ACB list, use respectively and bring formula above for No. AC into and calculate, draw the AC list that certainly can access.Interval can be also that each subscriber equipment 20 is directly cumulative according to the time of oneself initiating request, uses the mode of similar timer, spends the time of Interval just to allowing the AC of access to carry out the mode of cyclic shift.It is that network waits RRC signaling static configuration by broadcast that the advice method of Interval can be, but not limited to, and can be also agreement agreement.

For rule 2, the subscriber equipment that is AC 0-9 such as initial access control parameter is all prohibited to access, after having crossed so certain hour interval T, subscriber equipment thinks that the subscriber equipment that current access control parameter becomes AC0-5 is prohibited, and the subscriber equipment of AC6-9 is allowed to access.If the AC grade of this subscriber equipment is in 6-9 so, after the duration of T, subscriber equipment is thought own and is allowed access by network so.In other words forbidden AC grade has reduced gradually.

For rule 3, subscriber equipment 20 is with Fixed Time Interval, and fixed step size value increases or reduce access barred parameter value.

Such as: it is that access barred parameter value is that 0.2, timer is 4s that network equipment 10 is broadcasted ACB parameter in SIB2.Subscriber equipment 20 starts to initiate random access and uses this parameter; After being prohibited, through after interval=15s, subscriber equipment 20 thinks that ACB parameter becomes 0.2+0.1, and timer is 4s.If be also prohibited, through after interval=15s, subscriber equipment 20 thinks that ACB parameter becomes 0.2+0.1+0.1, and timer is 4s; By that analogy, subscriber equipment 20 can improve access barred parameter value gradually, is allowed to probability to improve access.Wherein each step-length (the present embodiment is 0.1) improving can be, but not limited to be network side by broadcast waits RRC signaling static configuration, the modes such as computing formula (to access this parameter of use etc. relevant) calculating or agreement agreement of arrange by agreement obtain.

For rule 3, subscriber equipment 20 can also increase or reduce access barred parameter value with step value corresponding to current time interval, wherein in two time intervals of arbitrary neighborhood, rear one interval greater than or be less than the previous time interval, and a rear step value corresponding to the time interval is greater than or less than step value corresponding to the previous time interval.

Here comprise possibility in 4:

1, increase or reduce access barred parameter value with step value corresponding to current time interval, wherein in two time intervals of arbitrary neighborhood, rear one interval greater than the previous time interval, and a rear step value corresponding to the time interval is greater than step value corresponding to the previous time interval.Be the time interval of subscriber equipment to increase gradually, the step value raising gradually increases or reduces access access barred parameter value;

2, increase or reduce access barred parameter value with step value corresponding to current time interval, wherein in two time intervals of arbitrary neighborhood, rear one interval greater than the previous time interval, and a rear step value corresponding to the time interval is less than step value corresponding to the previous time interval.Be the time interval of subscriber equipment to increase gradually, the step value reducing gradually increases or reduces access access barred parameter value;

3, increase or reduce access barred parameter value with step value corresponding to current time interval, wherein in two time intervals of arbitrary neighborhood, a rear time interval is less than the previous time interval, and a rear step value corresponding to the time interval is greater than step value corresponding to the previous time interval.Be the time interval of subscriber equipment to reduce gradually, the step value raising gradually increases or reduces access access barred parameter value;

4, increase or reduce access barred parameter value with step value corresponding to current time interval, wherein in two time intervals of arbitrary neighborhood, a rear time interval is less than the previous time interval, and a rear step value corresponding to the time interval is less than step value corresponding to the previous time interval.Be the time interval of subscriber equipment to reduce gradually, the step value reducing gradually increases or reduces access access barred parameter value.

Take 3 as example such as, pass through for the first time 5s, increase by 0.1; Pass through 4s next time, increase by 0.2; Pass through again 3s next time, increase by 0.3, the like.

For rule 3, preferably, if be applied in LTE system, access barred parameter value is ac-BarringFactor; If be applied in UMTS, access barred parameter value is persistent value.

For rule 4, subscriber equipment is with Fixed Time Interval, and fixed step size value increases or reduce the duration of access barred timer.

Such as: in initial access parameter, forbid that the length of duration is 16s, once that is to say that subscriber equipment 20 is prohibited to access, at least in 16s, be no longer allowed to access; After having crossed certain hour interval T, subscriber equipment 20 thinks that the current duration of forbidding has become 8s, and after terminal is prohibited to get involved again, the duration that is not allowed to initiate to access has just shortened to 8s.

For rule 4, subscriber equipment 20 can also increase or reduce with step value corresponding to current time interval the duration of access barred timer, wherein in two time intervals of arbitrary neighborhood, rear one interval greater than or be less than the previous time interval, and a rear step value corresponding to the time interval is greater than or less than step value corresponding to the previous time interval.

Here comprise possibility in 4:

1, increase or reduce the duration of access barred timer with step value corresponding to current time interval, wherein in two time intervals of arbitrary neighborhood, rear one interval greater than the previous time interval, and a rear step value corresponding to the time interval is greater than step value corresponding to the previous time interval.Be the time interval of subscriber equipment to increase gradually, the step value raising gradually increases or reduces the duration of access barred timer;

2, increase or reduce the duration of access barred timer with step value corresponding to current time interval, wherein in two time intervals of arbitrary neighborhood, rear one interval greater than the previous time interval, and a rear step value corresponding to the time interval is less than step value corresponding to the previous time interval.Be the time interval of subscriber equipment to increase gradually, the step value reducing gradually increases or reduces the duration of access access barred timer;

3, increase or reduce the duration of access barred timer with step value corresponding to current time interval, wherein in two time intervals of arbitrary neighborhood, a rear time interval is less than the previous time interval, and a rear step value corresponding to the time interval is greater than step value corresponding to the previous time interval.Be the time interval of subscriber equipment to reduce gradually, the step value raising gradually increases or reduces the duration of access access barred timer;

4, increase or reduce the duration of access barred timer with step value corresponding to current time interval, wherein in two time intervals of arbitrary neighborhood, a rear time interval is less than the previous time interval, and a rear step value corresponding to the time interval is less than step value corresponding to the previous time interval.Be the time interval of subscriber equipment to reduce gradually, the step value reducing gradually increases or reduces the duration of access access barred timer.

Take 3 as example such as, pass through for the first time 5s, increase by 0.1; Pass through 4s next time, increase by 0.2; Pass through again 3s next time, increase by 0.3, the like.

For rule 5, exceeding after the effective duration of access control parameter, determine that access control parameter allows to initiate RRC and connects the request of foundation (if having other restriction also to need to continue judgement).

It should be noted that, the embodiment of the present invention is not limited to rule in above-mentioned 5, and other rules that can make subscriber equipment 20 adjust access control parameter are all suitable for the embodiment of the present invention.

Wherein, the network equipment 10 of the embodiment of the present invention can be base station (such as macro base station, Home eNodeB etc.), can be also RN (relaying) equipment, can also be other network equipment.

Based on same inventive concept, in the embodiment of the present invention, also provide a kind of method that subscriber equipment, network equipment, subscriber equipment carry out access control and network side notifying user equipment to adjust the method for parameter, because the principle that these equipment are dealt with problems with method is similar to the system of embodiment of the present invention access control, therefore the enforcement of these equipment can be referring to the enforcement of system, repeats part and repeat no more.

As shown in Figure 2, the subscriber equipment of the embodiment of the present invention comprises: judge module 200 and adjusting module 210.

Judge module 200, while setting up request, judges whether that according to access control parameter allowing to initiate RRC connection sets up request for initiate RRC connection at needs;

Adjusting module 210, for determining that not allowing to initiate RRC connects after the request of foundation, adjusts access control parameter, and triggers judge module and continue to judge whether that according to access control parameter allowing to initiate RRC connects the request of foundation.

Preferably, judge module 200 is adjusted access control parameters according to one or more in following rule:

Periodically forbidden AC in roll-call access control parameter;

At interval of a period of time, reduce or increase be prohibited access AC number;

At interval of a period of time, increase or reduce access barred parameter value based on certain step value;

At interval of a period of time, increase or reduce the duration of access barred timer based on certain step value;

The effective duration of access control parameter is set.

Preferably, the cycle is that agreement regulation or judge module 200 are determined or configured by network side.

Preferably, definite cycle of judge module 200 is the relation of multiple with allowing access grade number.

Preferably, judge module 200 is with Fixed Time Interval, and fixed step size value increases or reduce access barred parameter value; Or increase or reduce access barred parameter value with step value corresponding to current time interval, wherein in two time intervals of arbitrary neighborhood, rear one interval greater than or be less than the previous time interval, and a rear step value corresponding to the time interval is greater than or less than step value corresponding to the previous time interval.

Preferably, if be applied in LTE system, access barred parameter value is ac-BarringFactor; If be applied in UMTS, access barred parameter value is persistent value.

Preferably, judge module 200 is with Fixed Time Interval, and fixed step size value increases or reduce the duration of access barred timer; Or increase or reduce the duration of access barred timer with step value corresponding to current time interval, wherein in two time intervals of arbitrary neighborhood, rear one interval greater than or be less than the previous time interval, and a rear step value corresponding to the time interval is greater than or less than step value corresponding to the previous time interval.

As shown in Figure 3, the network equipment of the embodiment of the present invention comprises: determination module 300 and sending module 310.

Determination module 300, for definite initial access control parameter with for adjusting the adjustment parameter of access control parameter;

Sending module 310, for sending initial access control parameter and for adjusting the adjustment parameter of access control parameter to subscriber equipment, carry out access control for notifying user equipment according to initial access control parameter, and determining that not allowing to initiate RRC connects after the request of foundation, adjusts access control parameter according to adjusting parameter.

Preferably, adjusting parameter is at least one in following parameters:

Adjust the initial cycle of access control parameter, the initial step value of adjusting access control parameter and initial step value and adjust interval.

As shown in Figure 4, the method that embodiment of the present invention subscriber equipment carries out access control comprises the following steps:

When step 401, subscriber equipment are initiated RRC connection foundation request at needs, judge whether to allow to initiate RRC connection foundation request according to access control parameter;

Step 402, subscriber equipment, after determining that not allowing to initiate RRC connection foundation asks, are adjusted access control parameter, and return to the step that judges whether to allow initiation RRC connection foundation request according to access control parameter.

Such as, subscriber equipment judges whether that according to initial access control parameter allowing to initiate RRC connects the request of foundation for the first time, if allowed, determine that access control parameter allows to initiate RRC and connects the request of foundation (if having other restriction also to need to continue judgement); Otherwise initial access control parameter, and then judge whether that according to the access control parameter after adjusting allowing to initiate RRC connects the request of foundation, if allowed, determine that access control parameter allows to initiate RRC and connects the request of foundation (if having other restriction also to need to continue judgement); Otherwise continue to adjust access control parameter, the like.

Preferably, subscriber equipment is adjusted access control parameters according to one or more in following rule:

Forbidden AC in rule 1, periodic roll-call access control parameter;

Rule 2, at interval of a period of time, reduce or increase be prohibited access AC number;

Rule 3, at interval of a period of time, increase or reduce access barred parameter value (accessing the factor) based on certain step value;

Rule 4, at interval of a period of time, increase or reduce the duration of access barred timer based on certain step value;

Rule 5, the effective duration of access control parameter is set.

Preferably, the above-mentioned cycle is that agreement regulation or subscriber equipment are determined or configured by network side.

Preferably, definite cycle of subscriber equipment is the relation of multiple with allowing access grade number.

Preferably, for rule 3, subscriber equipment 20 is with Fixed Time Interval, and fixed step size value increases or reduce access barred parameter value; Or increase or reduce access barred parameter value with step value corresponding to current time interval, wherein in two time intervals of arbitrary neighborhood, rear one interval greater than or be less than the previous time interval, and a rear step value corresponding to the time interval is greater than or less than step value corresponding to the previous time interval.

For rule 3, preferably, if be applied in LTE system, access barred parameter value is ac-BarringFactor; If be applied in UMTS, access barred parameter value is persistent value.

Preferably, for rule 4, subscriber equipment is with Fixed Time Interval, and fixed step size value increases or reduce the duration of access barred timer; Or increase or reduce the duration of access barred timer with step value corresponding to current time interval, wherein in two time intervals of arbitrary neighborhood, rear one interval greater than or be less than the previous time interval, and a rear step value corresponding to the time interval is greater than or less than step value corresponding to the previous time interval.

As shown in Figure 5, the method for embodiment of the present invention network side notifying user equipment adjustment parameter comprises the following steps:

Step 501, network side are determined initial access control parameter and for adjusting the adjustment parameter of access control parameter;

Step 502, network side send initial access control parameter and for adjusting the adjustment parameter of access control parameter to subscriber equipment, carry out access control for notifying user equipment according to initial access control parameter, and determining that not allowing to initiate RRC connects after the request of foundation, adjusts access control parameter according to adjusting parameter.

Preferably, adjusting parameter is at least one in following parameters:

Adjust the initial cycle of access control parameter, the initial step value of adjusting access control parameter and initial step value and adjust interval.

As shown in Figure 6, the method for embodiment of the present invention subscriber equipment adjustment access control parameter comprises:

Step 601, subscriber equipment determine that high level requests initiation RRC connects;

Step 602, subscriber equipment judge whether that according to access control parameter allowing to initiate RRC connects the request of foundation; If so, perform step 603; Otherwise, execution step 604;

Step 603, subscriber equipment determine that access control parameter allows to initiate RRC and connects the request of foundation, and process ends;

Step 604, subscriber equipment are adjusted access control parameter, and are returned to step 602.

Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, completely implement software example or the form in conjunction with the embodiment of software and hardware aspect.And the present invention can adopt the form at one or more upper computer programs of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.

The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction that makes to carry out by the processor of computer or other programmable data processing device produces the device for realizing the function of specifying at flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.

These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame on computer or other programmable devices.

Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to be interpreted as comprising preferred embodiment and fall into all changes and the modification of the scope of the invention.

Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.

Claims (15)

1. a method for access control, is characterized in that, the method comprises:
When subscriber equipment is initiated radio resource control RRC connection foundation request at needs, judge whether to allow to initiate RRC connection foundation request according to access control parameter;
Described subscriber equipment does not allow to initiate, after RRC connection foundation request, to adjust described access control parameter definite, and returns to the step that judges whether to allow initiation RRC connection foundation request according to access control parameter; Wherein, described subscriber equipment is adjusted described access control parameter according to one or more in following rule:
Periodically forbidden access grade AC in roll-call access control parameter;
At interval of a period of time, reduce or increase be prohibited access AC number;
At interval of a period of time, increase or reduce access barred parameter value based on certain step value;
At interval of a period of time, increase or reduce the duration of access barred timer based on certain step value;
The effective duration of access control parameter is set.
2. the method for claim 1, is characterized in that, the described cycle is that agreement regulation or described subscriber equipment are determined or configured by network side.
3. method as claimed in claim 2, is characterized in that, definite cycle of described subscriber equipment is the relation of multiple with allowing access grade number.
4. the method for claim 1, is characterized in that, described subscriber equipment, at interval of a period of time, increases or reduces access barred parameter value based on certain step value and comprise:
Described subscriber equipment is with Fixed Time Interval, and fixed step size value increases or reduce access barred parameter value; Or
Described subscriber equipment increases or reduces access barred parameter value with step value corresponding to current time interval, wherein in two time intervals of arbitrary neighborhood, rear one interval greater than or be less than the previous time interval, and a rear step value corresponding to the time interval is greater than or less than step value corresponding to the previous time interval.
5. the method as described in claim 1 or 4, is characterized in that, if be applied in Long Term Evolution LTE system, described access barred parameter value is ac-BarringFactor;
If be applied in universal mobile telecommunications system UMTS, described access barred parameter value is persistent value.
6. the method for claim 1, is characterized in that, described subscriber equipment is at interval of a period of time, and the duration that increases or reduce access barred timer based on certain step value comprises:
Described subscriber equipment is with Fixed Time Interval, and fixed step size value increases or reduce the duration of access barred timer; Or
Described subscriber equipment increases or reduces the duration of access barred timer with step value corresponding to current time interval, wherein in two time intervals of arbitrary neighborhood, rear one interval greater than or be less than the previous time interval, and a rear step value corresponding to the time interval is greater than or less than step value corresponding to the previous time interval.
7. a method for access control, is characterized in that, the method comprises:
Network side is determined initial access control parameter and for adjusting the adjustment parameter of described access control parameter;
Described network side is to the subscriber equipment described initial access control parameter of transmission with for adjusting the adjustment parameter of described access control parameter, for notifying described subscriber equipment to carry out access control according to described initial access control parameter, and determining that not allowing to initiate RRC connects after the request of foundation, adjusts described initial access control parameter according to described adjustment parameter;
Wherein, described adjustment parameter is at least one in following parameters:
Adjust the initial cycle of described access control parameter, the initial step value of adjusting described access control parameter and initial step value and adjust interval.
8. a subscriber equipment for access control, is characterized in that, this subscriber equipment comprises:
Judge module, while setting up request, judges whether that according to access control parameter allowing to initiate RRC connection sets up request for initiate RRC connection at needs;
Adjusting module, for determining that not allowing to initiate RRC connects after the request of foundation, adjusts described access control parameter, and triggers described judge module and continue to judge whether that according to access control parameter allowing to initiate RRC connects the request of foundation;
Described judge module is adjusted described access control parameter according to one or more in following rule:
Periodically forbidden AC in roll-call access control parameter;
At interval of a period of time, reduce or increase be prohibited access AC number;
At interval of a period of time, increase or reduce access barred parameter value based on certain step value;
At interval of a period of time, increase or reduce the duration of access barred timer based on certain step value;
The effective duration of access control parameter is set.
9. subscriber equipment as claimed in claim 8, is characterized in that, the described cycle is that agreement regulation or described judge module are determined or configured by network side.
10. subscriber equipment as claimed in claim 9, is characterized in that, definite cycle of described judge module is the relation of multiple with allowing access grade number.
11. subscriber equipmenies as claimed in claim 8, is characterized in that, described judge module specifically for:
With Fixed Time Interval, fixed step size value increases or reduces access barred parameter value; Or
Increase or reduce access barred parameter value with step value corresponding to current time interval, wherein in two time intervals of arbitrary neighborhood, rear one interval greater than or be less than the previous time interval, and a rear step value corresponding to the time interval is greater than or less than step value corresponding to the previous time interval.
12. subscriber equipmenies as described in claim 8 or 11, is characterized in that, if be applied in LTE system, described access barred parameter value is ac-BarringFactor;
If be applied in UMTS, described access barred parameter value is persistent value.
13. subscriber equipmenies as claimed in claim 8, is characterized in that, described judge module specifically for:
With Fixed Time Interval, fixed step size value increases or reduces the duration of access barred timer; Or
Increase or reduce the duration of access barred timer with step value corresponding to current time interval, wherein in two time intervals of arbitrary neighborhood, rear one interval greater than or be less than the previous time interval, and a rear step value corresponding to the time interval is greater than or less than step value corresponding to the previous time interval.
The network equipment of 14. 1 kinds of access controls, is characterized in that, this network equipment comprises:
Determination module, for definite initial access control parameter with for adjusting the adjustment parameter of described access control parameter;
Sending module, be used for to the subscriber equipment described initial access control parameter of transmission with for adjusting the adjustment parameter of described access control parameter, for notifying described subscriber equipment to carry out access control according to described initial access control parameter, and determining that not allowing to initiate RRC connects after the request of foundation, adjusts described initial access control parameter according to described adjustment parameter;
Described adjustment parameter is at least one in following parameters:
Adjust the initial cycle of described access control parameter, the initial step value of adjusting described access control parameter and initial step value and adjust interval.
The system of 15. 1 kinds of access controls, is characterized in that, this system comprises:
Network equipment, for definite initial access control parameter with for adjusting the adjustment parameter of described access control parameter, and to the subscriber equipment described initial access control parameter of transmission with for adjusting the adjustment parameter of described access control parameter, wherein, described adjustment parameter is at least one in following parameters: adjust the initial cycle of described access control parameter, the initial step value of adjusting described access control parameter and initial step value and adjust interval;
Subscriber equipment, in the time that needs are initiated RRC connection foundation request, judge whether that according to access control parameter allowing to initiate RRC connects the request of foundation, determining that not allowing to initiate RRC connects after the request of foundation, adjust described access control parameter, and return to the step that judges whether to allow to initiate RRC connection foundation request according to access control parameter; Wherein, described subscriber equipment is adjusted described access control parameter according to one or more in following rule:
Periodically forbidden access grade AC in roll-call access control parameter;
At interval of a period of time, reduce or increase be prohibited access AC number;
At interval of a period of time, increase or reduce access barred parameter value based on certain step value;
At interval of a period of time, increase or reduce the duration of access barred timer based on certain step value;
The effective duration of access control parameter is set.
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