CN101854678B - Access control method and device - Google Patents

Access control method and device Download PDF

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Publication number
CN101854678B
CN101854678B CN201010190963.4A CN201010190963A CN101854678B CN 101854678 B CN101854678 B CN 101854678B CN 201010190963 A CN201010190963 A CN 201010190963A CN 101854678 B CN101854678 B CN 101854678B
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access
user terminal
state
layer
described user
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CN101854678A (en
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汤月宝
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ZTE Corp
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ZTE Corp
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access

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

Abstract

The invention provides an access control method and device and relates to the mobile communication field. The invention solves the problem that the efficiency of access management is low. The method comprises the following steps: an AS layer updates the current access state of user terminals stored in the layer; and the AS layer notifies an NAS layer of the current access state of the user terminals. The technical scheme provided by the invention is applicable to the wireless access system.

Description

Connection control method and device
Technical field
The present invention relates to moving communicating field, particularly relate to a kind of connection control method and device.
Background technology
Wireless access system, according to the hierarchy of agreement, can be divided into Non-Access Stratum (NAS layer) and Access Layer (AS layer).Wherein NAS layer exercises core net function, and it comprises and connects association (CM, ConnectionManagement) and mobile management (MM, Mobility Management) two sublayers.AS layer exercises Access Network function, comprise RRM (RRC, Radio Resource Control), wireless chain control layer (RLC, Radio Link Control), medium education (MAC, Media AccessControl) etc.
In a wireless communication system, each terminal equipment can initiate access according to the wish of user terminal (UE, UserEquipment) with Opinion Net.Because this access is random, so there is multi-user initiates access possibility a community simultaneously.Because network capacity is limited, forbid that the UE of the part access grade in community initiates access so network side generally can be random, and again to recover these in this community on certain opportunity and be prohibited the access permission of the UE accessed.
Fig. 1 is the flow chart calculating the best access grade of UE and determine access state.UE is calculated by bar list (forbidding the list of the call class accessed) according to the access grade carried in the system information of the access grade information of the terminal support stored in the information of current residing network, card-like state, card and network side broadcast, obtains current normal call (NC) or the access state of urgent call (EC).
Now general processing scheme is each after the NAS layer initiation business of UE, and AS layer, according to the current access state of Fig. 1 workflow management UE, if just made a call for accessible state, otherwise is just refused this business and notifies NAS layer.
Summary of the invention
The invention provides a kind of connection control method and device, solve the inefficient problem of access-in management.
A kind of connection control method, comprising:
AS layer upgrades the user terminal current access state that this layer stores;
The described user terminal current access state of described AS layer notice NAS layer.
Further, the step of the local user terminal current access state stored of described AS layer renewal comprises:
After described user terminal starts shooting resident success, calculate the available access grade of described user terminal and best access grade;
Can determine with access grade the access state that described user terminal is current according to described user terminal.
Further, the step of the local user terminal current access state stored of described AS layer renewal comprises:
When the Subscriber Identity Module state of described user terminal or system information change, AS layer, according to up-to-date Subscriber Identity Module state or system information, calculates the current available access grade of described user terminal and best access grade;
Compare the best access grade of this user terminal stored according to the current best access grade of described user terminal and described AS layer;
When the access grade of described user terminal changes, the best access grade upgrading the described user terminal that described AS layer stores is current best access grade;
The available access grade determination current access state current according to described user terminal.
Further, after the step of the described user terminal current access state of described AS layer notice NAS layer, also comprise:
Described NAS layer preserves described user terminal current access state.
Further, after the step of the described user terminal current access state of described AS layer notice NAS layer, also comprise:
When described user terminal requests business, described NAS layer, according to described user terminal current access state, judges whether to carry out this business;
When judged result is for carrying out described business, by the request forward of described user terminal to AS layer;
When judged result is not for carrying out described business, refuse this business.
Further, after the step of the described user terminal current access state of described AS layer notice NAS layer, also comprise:
Described NAS layer described user terminal access state from can not access state become accessible state time, initiate accessiblely to be suspended location updating or routing update.
Present invention also offers a kind of access control apparatus, comprising:
AS layer state administration module, for upgrading the user terminal current access state that AS layer stores;
AS layer state notification module, for notifying the described user terminal current access state of NAS layer.
Further, described AS state management module comprises:
Rating calculation unit, for after described user terminal starts shooting resident success, calculates the available access grade of described user terminal and best access grade;
State acquiring unit, for determining according to the available access grade of described user terminal the access state that described user terminal is current.
Further, described rating calculation unit, also for when the Subscriber Identity Module state of described user terminal or system information change, according to up-to-date card-like state or system information, calculate the current available access grade of described user terminal and best access grade, compare the best access grade of this user terminal stored according to the current best access grade of described user terminal and described AS layer, when the access grade of described user terminal changes, the best access grade upgrading the described user terminal that described AS layer stores is current best access grade;
Described state acquiring unit, also for the available access grade determination current access state current according to described user terminal.
Further, above-mentioned access control apparatus also comprises:
NAS layer state administration module, for preserving the described user terminal current access state that described AS layer state notification module sends at NAS layer.
Further, above-mentioned access control apparatus also comprises:
NAS layer access Executive Module, for when described user terminal requests business, according to described user terminal current access state, judge whether to carry out this business, and when judged result is for carrying out described business, by the request forward of described user terminal to AS layer, or in judged result for refusing this business when can not carry out described business; Or,
Described user terminal access state from can not access state become accessible state time, initiate accessiblely to be suspended location updating or routing update.
The invention provides a kind of connection control method and device, upgrade the UE current access state of this layer of storage at AS layer after, the described UE current access state of notice NAS layer, to make NAS layer can manage according to the access of UE current access state to UE, solve the inefficient problem of access-in management.
Accompanying drawing explanation
Fig. 1 is the flow chart calculating the best access grade of UE and determine access state;
The flow chart of a kind of connection control method that Fig. 2 provides for embodiments of the invention one;
The flow chart of a kind of connection control method that Fig. 3 provides for embodiments of the invention two;
The structural representation of a kind of access control apparatus that Fig. 4 provides for embodiments of the invention;
Fig. 5 is the structural representation of AS state management module 401 in Fig. 4;
The structural representation of a kind of access control apparatus that Fig. 6 provides for another embodiment of the present invention;
The structural representation of a kind of access control apparatus that Fig. 7 provides for another embodiment of the present invention.
Embodiment
Now general processing scheme is each after the NAS layer initiation business of UE, and AS layer is according to the current access state of Fig. 1 workflow management, concrete:
Step 101, AS layer judge whether current UE exists Subscriber Identity Module;
In the embodiment of the present invention, described Subscriber Identity Module is specially SIM card or usim card, is described below for usim card.
If there is usim card in step 102 UE, then according to the UE access grade information stored in card and current resident network type, judge that access grade actual available in access grade in current card is as which, judgment principle is: UE resides in home network (HPLMN, Home Public Land MobileNetwork) time, access grade 0-9 and 11-15 is effective, when the national code of residing network is identical with HPLMN national code, access grade 0-9 and 12-14 is effective, and during other network resident, access grade 0-9 is effective.
Step 103, determine normal call can access grade;
In this step, get UE can access grade after, with being done one_to_one corresponding by bar list (i.e. network forbid access grade list) and compare of system information broadcast, from the available access grade that step 102 obtains, reject those access grades forbidden by network.
Further, determine the access state of UE according to available access grade, comprise the access state of normal call and the access state of urgent call, access state is divided into accessible state and can not access state two kinds.If available access grade list relatively is not later empty, then thinks that the access state of normal call is for accessible state, and maximum access grade remaining in list is preserved as best access grade, use when initial random access.
Step 104, determine urgent call can access grade;
Again according to the system information of Web broadcast by the information of bar list, contrast with access grade available in usim card, whether limit the judgement of urgent call.
If judge to there is not usim card in UE in step 105 step 101, then think that the access state of normal call is for can not access state, and according to the system information of Web broadcast by the AC of bar list [10], (the access grade list in system information comprises 0-15 totally 16 grades, wherein access grade 10 is called for short AC [10], is used as the flag of restriction urgent call) whether judged whether limit urgent call without during usim card by bar.
Step 106, metered call access state result;
Comprise the record access state of normal call and the access state of urgent call.
This processing method causes the generation of following two kinds of situations:
1, NAS layer does not know AS layer access state, does not likely allow the stage to repeat initiation business at AS layer to UE access;
If what NAS layer was initiated is general business, by NAS layer notice UE service fail after AS layer refusal, flow process is not affected.But UE does not also know failure cause, likely make repeated attempts initiation business, and each NAS layer all can make a call to AS layer, and AS layer just needs the access control repeatedly doing repetition to calculate, and cause redundancy process, access control efficiency is low.
2, when the access state of UE changes, NAS layer cannot know this change, can not initiate in time to making some business;
The access state change that may occur comprises two kinds: a. access state and occurs by the change that can be accessed by; B. access state is by being linked into accessible change.For (a) this situation, the impact caused is identical with (1) this situation.For (b) this situation, do not know the change of the access state of AS layer due to NAS layer, some are led to the failure by bar due to access, but access become accessible after need the business initiated immediately, can not initiate immediately, traffic affecting instantaneity, access control efficiency is low.
In order to solve the problem, The embodiment provides a kind of connection control method, below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
First, a kind of connection control method that embodiments of the invention one provide is described.
Embodiments of the invention one provide a kind of connection control method, the AS layer of UE is after start also successfully resides in a community, or behind the resident community of Idle state success, according to after the access state that Fig. 1 workflow management is current, the access state of metered call and access grade information, and use the method to complete the process of access control as shown in Figure 2 on current access state notice NAS layer, comprising:
Step 201, after UE starts shooting resident success, calculate described UE can access grade and best access grade;
Each UE starts shooting after resident success, and AS layer is flow process according to Fig. 1 all, calculates the access grade of UE, and from the highest ranking available access grade as best access grade.
Step 202, according to described UE can access grade determine the access state that described UE is current;
In this step, according to UE can access grade, determine the normal call of current UE and the access state of urgent call, namely there is available normal call access grade and namely think that the access state of normal call is for accessible state, there is available urgent call access grade and namely think that the access state of urgent call is for accessible state, the best access grade of record UE and access state.
The described UE current access state of step 203, AS layer notice NAS layer;
In this step, AS layer, these access states, by the form of message, is sent to the NAS layer of UE.
Step 204, NAS layer preserve described UE current access state;
In this step, NAS layer, after receiving the access state information that AS layer reports, preserves.
Step 205, when described UE requested service, described NAS layer, according to described UE current access state, judges whether to carry out this business;
In this step, before each initiation business, NAS layer, all according to the UE current access state that this layer stores, judges currently whether can initiate this business.
Step 206, judged result for can carry out described business time, by the request forward of described UE to AS layer;
Step 207, judged result for can not carry out described business time, refuse this business.
Below in conjunction with accompanying drawing, embodiments of the invention two are described.
Embodiments of the invention two provide a kind of connection control method, when network side broadcast system information change or Subscriber Identity Module state change (as change Subscriber Identity Module, without card-like state under insert Subscriber Identity Module, card in storage access grade list change) after, the access state that the AS layer of UE is new according to Fig. 1 workflow management, compare with original access state, if access state or best access grade change, then by message, new access state is notified NAS layer.
The connection control method using embodiments of the invention to provide completes the flow process of access control as shown in Figure 3, comprising:
When the state of Subscriber Identity Module or system information change time, all notify AS layer, AS layer is according to up-to-date Subscriber Identity Module information or system information, according to flow process shown in Fig. 1, determine the access state of current UE and best access grade, and compare with the best access grade preserved before and UE access state.If best access grade there occurs change, then upgrade the local best access grade information stored, if access state changes, then send the up-to-date access state information of access state change instruction notice NAS layer to NAS layer, upgrade the UE access state of this layer of storage for NAS layer.If NAS receives the access state change instruction of the UE that AS layer sends, find that access state becomes accessible from accessible, then initiate immediately, because be accessiblely suspended location register or routing update flow process, to ensure that follow-up flow process can normally be initiated.
The connection control method that embodiments of the invention provide, upgrade the UE current access state of this layer of storage at AS layer after, the described UE current access state of notice NAS layer, to make NAS layer can manage according to the access of UE current access state to UE, solves the inefficient problem of access-in management.By the associated treatment of AS layer and NAS layer, avoid when accessing forbidden, NAS layer repeats issuing service to AS layer owing to not knowing the access state of AS layer, solve when the access state of UE is by when can not be linked into accessible conversion, NAS layer cannot initiate the problem of the business be suspended in time owing to not knowing access state to change simultaneously.
Embodiments of the invention additionally provide a kind of access control apparatus, and its structure as shown in Figure 4, comprising:
AS layer state administration module 401, for upgrading the UE current access state that AS layer stores;
AS layer state notification module 402, for notifying the described UE current access state of NAS layer.
Further, the structure of described AS state management module 401 as shown in Figure 5, comprising:
Rating calculation unit 4011, for after described UE starts shooting resident success, calculates the available access grade of described UE and best access grade;
State acquiring unit 4012, for determining with access grade the access state that described UE is current according to described UE.
Further, described rating calculation unit 4011, also for when the Subscriber Identity Module state of described user terminal or system information change, according to up-to-date card-like state or system information, calculate the current available access grade of described user terminal and best access grade, compare the best access grade of this user terminal stored according to the current best access grade of described user terminal and described AS layer, when the access grade of described user terminal changes, the best access grade upgrading the described user terminal that described AS layer stores is current best access grade,
Described state acquiring unit 4012, also for the available access grade determination current access state current according to described user terminal.
Further, the structure of above-mentioned access control apparatus as shown in Figure 6, also comprises:
NAS layer state administration module 403, for preserving the described UE current access state that described AS layer state notification module sends at NAS layer.
Further, the structure of above-mentioned access control apparatus as shown in Figure 7, also comprises:
NAS layer access Executive Module 404, for when described UE requested service, according to described UE current access state, judge whether to carry out this business, and when judged result is for carrying out described business, by the request forward of described UE to AS layer, or in judged result for refusing this business when can not carry out described business; Or,
Described UE access state from can not access state become accessible state time, initiate accessiblely to be suspended location updating or routing update.
Above-mentioned access control apparatus, can combine with a kind of connection control method that embodiments of the invention provide, upgrade the UE current access state of this layer of storage at AS layer after, the described UE current access state of notice NAS layer, to make NAS layer can manage according to the access of UE current access state to UE, solve the inefficient problem of access-in management.
One of ordinary skill in the art will appreciate that all or part of step of above-described embodiment can use computer program flow process to realize, described computer program can be stored in a computer-readable recording medium, described computer program (as system, unit, device etc.) on corresponding hardware platform performs, when performing, step comprising embodiment of the method one or a combination set of.
Alternatively, all or part of step of above-described embodiment also can use integrated circuit to realize, and these steps can be made into integrated circuit modules one by one respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
Each device/functional module/functional unit in above-described embodiment can adopt general calculation element to realize, and they can concentrate on single calculation element, also can be distributed on network that multiple calculation element forms.
Each device/functional module/functional unit in above-described embodiment using the form of software function module realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.The above-mentioned computer read/write memory medium mentioned can be read-only memory, disk or CD etc.

Claims (10)

1. a connection control method, is characterized in that, comprising:
Access Layer AS layer upgrades the user terminal current access state that this layer stores;
The described user terminal current access state of described AS layer notice Non-Access Stratum NAS layer;
Described NAS layer described user terminal access state from can not access state become accessible state time, initiate accessiblely to be suspended location updating or routing update.
2. connection control method according to claim 1, is characterized in that, the step that described AS layer upgrades the local user terminal current access state stored comprises:
After described user terminal starts shooting resident success, calculate the available access grade of described user terminal and best access grade;
Can determine with access grade the access state that described user terminal is current according to described user terminal.
3. connection control method according to claim 1, is characterized in that, the step that described AS layer upgrades the local user terminal current access state stored comprises:
When the Subscriber Identity Module state of described user terminal or system information change, AS layer, according to up-to-date Subscriber Identity Module state or system information, calculates the current available access grade of described user terminal and best access grade;
The best access grade of the best access grade that more described user terminal is current and this user terminal that described AS layer stores;
When the access grade of described user terminal changes, the best access grade upgrading the described user terminal that described AS layer stores is current best access grade;
The available access grade determination current access state current according to described user terminal.
4. connection control method according to claim 1, is characterized in that, after the step of the described user terminal current access state of described AS layer notice NAS layer, also comprises:
Described NAS layer preserves described user terminal current access state.
5. the connection control method according to claim 1 or 2 or 4, is characterized in that, after the step of the described user terminal current access state of described AS layer notice NAS layer, also comprises:
When described user terminal requests business, described NAS layer, according to described user terminal current access state, judges whether to carry out this business;
When judged result is for carrying out described business, by the request forward of described user terminal to AS layer;
When judged result is not for carrying out described business, refuse this business.
6. an access control apparatus, is characterized in that, comprising:
AS layer state administration module, for upgrading the user terminal current access state that AS layer stores;
AS layer state notification module, for notifying the described user terminal current access state of NAS layer;
This device also comprises:
NAS layer access Executive Module, for described user terminal access state from can not access state become accessible state time, initiate accessiblely to be suspended location updating or routing update.
7. access control apparatus according to claim 6, is characterized in that, described AS state management module comprises:
Rating calculation unit, for after described user terminal starts shooting resident success, calculates the available access grade of described user terminal and best access grade;
State acquiring unit, for determining according to the available access grade of described user terminal the access state that described user terminal is current.
8. access control apparatus according to claim 7, is characterized in that,
Described rating calculation unit, also for when the Subscriber Identity Module state of described user terminal or system information change, according to up-to-date card-like state or system information, calculate the current available access grade of described user terminal and best access grade, the best access grade of the best access grade that more described user terminal is current and this user terminal that described AS layer stores, when the access grade of described user terminal changes, the best access grade upgrading the described user terminal that described AS layer stores is current best access grade;
Described state acquiring unit, also for the available access grade determination current access state current according to described user terminal.
9. access control apparatus according to claim 6, is characterized in that, this device also comprises:
NAS layer state administration module, for preserving the described user terminal current access state that described AS layer state notification module sends at NAS layer.
10. access control apparatus according to claim 6, is characterized in that, this device also comprises:
NAS layer access Executive Module, also for when described user terminal requests business, according to described user terminal current access state, judge whether to carry out this business, and when judged result is for carrying out described business, by the request forward of described user terminal to AS layer, or in judged result for refusing this business when can not carry out described business.
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