CN1968497A - Method and apparatus for controlling subscriber-side device access - Google Patents
Method and apparatus for controlling subscriber-side device access Download PDFInfo
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- CN1968497A CN1968497A CNA2006100357067A CN200610035706A CN1968497A CN 1968497 A CN1968497 A CN 1968497A CN A2006100357067 A CNA2006100357067 A CN A2006100357067A CN 200610035706 A CN200610035706 A CN 200610035706A CN 1968497 A CN1968497 A CN 1968497A
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Abstract
The invention relates to a method for controlling the user device access, and relative device, wherein user device via signal channel is connected to the network and transmits data via the support channel relative to the signal channel; the inventive method comprises that: presetting the state of signal channel; a, receiving the access request of user device; b, confirming the signal device relative to the user device; c, based on the state, confirming the allowed user device. The invention can control the state of signal channel to control the access of user device, to educe the consumption caused by the blocked support channel when the signal channel is working. And it can avoid maintaining lots of data.
Description
Technical field
The present invention relates to data communication field, specifically, the present invention relates to a kind of method and device that user side equipment inserts of controlling.
Background technology
Integrated services digital network (Integrated Services Digital Network, ISDN) be with integrated digital telephone network (Integrated Digital Telephone Network, IDN) develop the communication network that forms for base growth, can providing end to end, numeral connects, be used for supporting to comprise speech and non-voice multiple telecommunication service, the user can be by in standard multi-user-network interface Access Network.
Two kinds of channel types are arranged: B passage (Bearer Channel, Bearer Channel) and D passage (Demand Channel, instruction/signaling channel) in the user-network interface of ISDN.Wherein the B passage is used for transmitting user profile such as voice, data, image, and speed is 64kbit/s.The D passage is used for the signaling information and the packetized digital information of transfer circuit exchange, according to the B number of channels that the D passage is supported, can be divided into two kinds in the D passage of the D passage of 2B+D and 30B+D.
ISDN has two kinds of interface types: basic rate interface (Basic Rate Interface, BRI) and primary rate interface (Primary Rate Interface, PRI).
Bri interface is the interface that the general link circuit of existing telephone network is stipulated as isdn user's line, and speed is 144kbit/s, supports 2 B passages and 1 D passage.
The PRI interface is divided into 30B+D (adopt China and North America) and two kinds of distinct interfaces of 23B+D (Europe and Japan adopt).The 30B+D interface is the PRI interface shape that China adopts, and speed is 2048kbit/s, supports 30 B passages and 1 D passage.The PRI interface is the interface that the coaxial line in the existing telephone network is stipulated as isdn user's line, be used for satisfying big traffic user's demand, can insert private branch exchange, local area network (LAN) LAN and internet etc. with the PRI interface with ISDN function, also can transmit high-quality picture for the video conferencing user provides passage.
Between the distinct device unit of isdn network, mainly adopted three kinds of signalings: as the user-network signal of the control signal between subscriber terminal equipment and the network, in return the control signal between the machine the network internal signaling and as the User-User Signaling of control signal between the subscriber terminal equipment.
For be linked into this application of ISDN exchange by above-mentioned isdn interface, what adopt between isdn terminal device and ISDN exchange is user-network signal.At present, and user among the ISDN-network signal employing digital user signalling (ISDN Digital Subscriber Signaling No.1, DSS1).Digital Subscriber Signaling No.1 is a common channel signalling, and common channel signalling has a special signaling channel transmission of control signals, and the controlling links of other Bearer Channel is finished by signaling by signaling channel; In addition, for common channel signalling, the state of Bearer Channel is to depend on the signaling channel state, when signaling channel is in the service, the state of Bearer Channel is a upstate, and when the signaling channel road withdrawed from service, the state of Bearer Channel just migration was malfunction.
Because some above characteristics of ISDN technology itself, simultaneously because insert the advantage that the common channel signalling that is adopted fast, reliably and does not need the configuration purpose signalling point by the PRI mode, the application that inserts by the PRI mode at present gets more and more, and most router also all supports PRI to insert.This access way especially is embodied in switch and private branch exchange or the router butt joint application.
Because the existing comparatively widely and develop of PRI access way,, how the demand that also promptly becomes a reality is effectively controlled in the access of these subscriber terminal equipments that insert by the PRI mode for Virtual network operator.
Characteristics according to ISDN PRI access technology, achieve a butt joint into the access control of user terminal, can pass through dual mode: a kind of be by the management maintenance to the D passage achieve a butt joint into the control of user terminal, another kind be by control be used for the B passage of transmitting user data achieve a butt joint into the control of user terminal.
For a kind of mode in front, the D channel bearing of Digital Subscriber Signaling No.1 is at link layer, the D channel is mainly finished the information that needs are transmitted and is assembled framing according to certain form, between realize receiving and sending synchronously, also to there be certain measure to come the transparent transmission of guarantee information, and carries out tasks such as flow control.(the International Telecommunication Union-Telecommunicationstandardization sector of working group of international telecommunication union telecommunication, ITU-T) described the standard that the D channel should be followed in the Q.921 standard of Zhi Dinging, Q.931 having described the link layer upper strata in the standard is the standard that call control layer should be followed.But, Digital Subscriber Signaling No.1 was mainly used in the control signal between control subscriber terminal equipment and the network originally when design, these two standards all do not have to be described at the function that administers and maintains of D channel itself, therefore, according to the prior art, this method can't realize the access control to the user terminal of ISDN PRI access.
For this mode in back, also promptly realize access control to user terminal by control B passage.When needs forbid that the user terminal of an ISDN PRI interface access inserts, D passage according to this user place finds all B passage related with this D passage, also promptly be used for carrying the Bearer Channel of this access user's business datum, with its obturation, this user terminal just can't be linked into network by ISDN PRI interface like this.When the user terminal that allows this ISDN PRI interface to insert inserts, separate the inaccessible B passage related again with this user terminal, this user terminal just can be linked into network again.
Though adopt this method can realize access control to user terminal also existing following these problems by control B passage:
1. can cause call drop.
Because Digital Subscriber Signaling No.1 is the control signal between family terminal equipment and the network, be a kind of subscriber signaling, unlike relaying signalings such as ISUP, defined the detail circuits management process.Therefore when in an end obturation of communicating pair the words of circuit, there is not signaling process to notify an other end, if also promptly the network side obturation B passage, user side is not known, so the user of user side still can make a call by the D passage, after network side is received this calling, find that circuit is inaccessible, call release has so just caused call drop then.
2. be not easy to safeguard.
Want obturation and all B passage that ISDN PRI user terminal is corresponding, the attendant need find all B channel numbers that this D passage is controlled according to the D passage of user terminal, and then with its obturation.Because it is not a D passage can be supported 256 E1 simultaneously in theory,, easy to operate so office side attendant wants inaccessible 256 * 32 circuit at most.
Summary of the invention
The technical problem that the present invention solves is to propose a kind of method and apparatus that user side equipment inserts of controlling, wherein user side equipment is set up link by signaling channel and network side, transmit data by the Bearer Channel that is associated with signaling channel, network equipment is realized access control to user side equipment by the operation to signaling channel, avoided calling out when controlling because the call drop that the selection of bearer path produces has also been avoided the attended operation to bearer path.
For addressing the above problem, the present invention proposes following technical scheme:
Wherein the method for the control user side equipment of this technical scheme access comprises:
The state of default signaling channel, and may further comprise the steps:
A) the access request message of reception user side equipment;
B) determine the pairing signaling channel of this user side equipment;
C) state according to described signaling channel determines whether to allow to insert this user side equipment.
Wherein, the state of the described signaling channel of step a) is according to setting respectively the access control needs of each user side equipment, and the state of signaling channel comprises state of activation and deactivation status.
Wherein, step c) is described determines whether that allowing to insert this user side equipment is: if state is a state of activation, then allow to insert this user side equipment, otherwise refusal inserts this user side equipment.
Wherein, the described access request message of step a) is a request for building link message.
Wherein, the described permission of step c) inserts this user side equipment for accepting request for building link or initiating request for building link to this user side equipment, described refusal inserts this user side equipment and is the refusal request for building link, and forbids initiating request for building link to this user side equipment.
Correspondingly, for addressing the above problem, this programme has also proposed a kind of device that user side equipment inserts of controlling, and comprising:
Preset the unit, be used to set the state of signaling channel;
Receiving element is used to receive the access request message that user side equipment sends;
Channels determining unit links to each other with receiving element, is used for determining inserting the corresponding signaling channel of requesting users side apparatus with described sending;
The access control unit links to each other with default unit, receiving element and channels determining unit, is used for whether allowing according to the State Control of signaling channel the access of described user side equipment.
Wherein, described default unit is according to the state of the access control needs of each user side equipment being set signaling channel respectively, and this state comprises state of activation and deactivation status.
Described access control unit further comprises again:
Search the unit, according to definite signaling channel search with its to corresponding state;
Allow to insert processing unit, be used to accept the access of user side equipment;
Refusal inserts processing unit, is used for the access of refusing user's side apparatus;
Control unit judges whether to allow user side equipment to insert according to the state of signaling channel, if state is a state of activation, notice allows to insert processing unit processes, otherwise the notice refusal inserts processing unit processes.
Wherein, the access request message that described receiving element received is a request for building link message.
Wherein, the described access of accepting user side equipment is for accepting request for building link or initiating request for building link to this user side equipment;
The access of described refusing user's side apparatus is for refusing request for building link and forbidding initiating request for building link to this user side equipment.
In the scheme of said method and device, described signaling channel is the integrated services digital network signaling channel.Described user side equipment is that integrated services digital network passes through the user terminal that primary rate PRI interface inserts.
Compared with prior art, the present invention has the following advantages:
1. the present invention controls the access of user side equipment by the control and the state of the signaling channel of user side equipment, when not allowing the user to insert, this signaling channel of deexcitation, therefore the Bearer Channel corresponding with this signaling channel is in malfunction, when calling out control, these Bearer Channels can not be chosen to, and therefore can not cause call drop.
2. the present invention directly passes through the access to the State Control user side equipment of signaling channel, do not need Bearer Channel is operated, thereby the attendant need be when user side equipment not be carried out access control yet a large amount of Bearer Channel data of Operation and Maintenance, made things convenient for maintenance.
Description of drawings
Fig. 1 is that the present invention controls the method step figure that user side equipment inserts;
Fig. 2 is an integrated service numeral access network networking diagram;
Fig. 3 is that the present invention controls the method embodiment block diagram that user side equipment inserts;
Fig. 4 is that the present invention controls the structure drawing of device that user side equipment inserts;
Fig. 5 is the access control cellular construction figure that the present invention controls the device of user side equipment access.
Embodiment
In the present invention, user side equipment, is set up by signaling channel and network equipment and to be used for the link of transmit traffic data to the network equipment transmit traffic data by Bearer Channel.User side equipment is before the network equipment transmit traffic data, must set up and network equipment between link, afterwards could with the normal transmit traffic data of network equipment; Determine according to the state of the pairing signaling channel of this user side equipment that and whether set up link signaling channel is in state of activation, then allow to set up link, otherwise refusal is set up link with user side equipment with user side equipment with user side equipment.So just can control the access that whether allows to insert this user side equipment, this main thought just of the present invention by the state of signaling channel of control user side equipment.
This invention thinking is embodied in following key step, as shown in Figure 1:
10) state of default signaling channel, and may further comprise the steps:
20) the access request message of reception user side equipment;
30) determine the pairing signaling channel of this user side equipment;
40) state according to described signaling channel determines whether to allow to insert this user side equipment.
With reference to the accompanying drawings embodiments of the invention are made detailed explanation below.
As shown in Figure 2, in an integrated service numeral access network, ISDN terminal is linked into ISDN exchange by ISDN PRI interface, and integrated services digital network provides comprehensive data and speech business for the ISDN terminal user.In order to realize service provider or operator, need carry out effectively control to all such ISDN terminal to the access of network in ISDN exchange side to network and professional effective management.
Fig. 3 is the execution in step of present embodiment:
11) default state to the pairing D passage of ISDN terminal.
In the present embodiment, the access control of ISDN terminal is comprised: allow this ISDN terminal to insert central office equipment and this ISDN terminal of refusal inserts central office equipment.
Before the control ISDN terminal inserted, ISDN exchange local side set in advance the state of D passage according to the control needs.If allow this ISDN terminal to insert, then activate the D passage corresponding with this ISDN terminal; Insert if refuse this ISDN terminal, then the deexcitation D passage corresponding with this ISDN terminal.
According to actual business requirement, for there being a plurality of ISDN terminal to control, should to each ISDN terminal respectively the state of corresponding D passage all carry out setting state, like this, in central office equipment, just exist the state table of such D passage, indicated the state of each relevant D passage.
21) the request for building link message of reception ISDN terminal.
The interface that each of central office equipment is corresponding with ISDN terminal all might receive the link request information that ISDN terminal is initiated.
31) determine the pairing D passage of user side equipment.
An interface of central office equipment obtains and the pairing D passage of this user side equipment ID according to the user configuration information in the equipment after receiving request for building link message from ISDN terminal.
Suppose, the D passage ID of ISDN terminal correspondence be 10 (Channel ID, CID=10).
41) search the state of D passage.
After having determined the D passage of ISDN terminal, equipment can be searched the state with this D passage in the described default D channel status table of step 10).
Suppose that the D channel status of CID=10 is deexcitation.
51) state according to the D passage determines whether to allow to insert this ISDN terminal.
The access control unit of ISDN determines whether to allow the access of this ISDN terminal according to the state of D passage.If the state of D passage is a state of activation, then allow its access, if the D channel status is a deactivation status, then refuse its access.
Whether allow this ISDN terminal to insert and show as here, whether accept the request for building link that this ISDN terminal sends.If allow this ISDN terminal to insert, then accept its request for building link; Insert if refuse this ISDN terminal, then refusal is accepted its request for building link, and forbids sending request for building link to it.
Here, central office equipment does not receive the request for building link from ISDN terminal if allow an ISDN terminal to insert, and central office equipment can initiatively be initiated request for building link to ISDN terminal.
For the ISDN terminal of above-mentioned CID=10, can't set up link with ISDN exchange this moment, thereby this ISDN terminal also just can't be linked into central office equipment.
Correspondingly, the present invention also provides a kind of device, and this device is built in the central office equipment, realizes the ISDN terminal that is connected is carried out access control.Also it is specifically described with reference to the accompanying drawings below.
As shown in Figure 4, this device mainly comprises default unit, receiving element, channels determining unit and access control unit.
Default unit:
Before the control ISDN terminal inserted, ISDN exchange local side set in advance the state of D passage according to the control needs; If allow this ISDN terminal to insert, then activate the D passage corresponding with this ISDN terminal, insert if refuse this ISDN terminal, then the deexcitation D passage corresponding with this ISDN terminal.Default unit is used for activating or deexcitation D passage exactly.
Because be connected with many ISDN terminal in a central office equipment, each ISDN terminal all has the D passage corresponding with it respectively, like this, just exists the state table of a D passage in central office equipment, indicated the state of each relevant D passage.Default unit is by setting the state of D passage to the attended operation of this D channel status table.
Receiving element:
Be used to receive the access request message that ISDN terminal sends.The interface that each of central office equipment is corresponding with ISDN terminal all might receive the link request information that ISDN terminal is initiated, so receiving element links to each other with each isdn interface.
Channels determining unit:
Link to each other with receiving element, be used for determining inserting the corresponding signaling channel of requesting users side apparatus with described sending.
After an interface of central office equipment received request for building link message from ISDN terminal, channels determining unit was obtained and the pairing D passage of this user side equipment ID according to the user configuration information in the equipment.
Similarly, suppose the CID=10 of ISDN terminal correspondence.
Access control unit: link to each other with default unit, receiving element and channels determining unit, be used for whether allowing the access of ISDN terminal according to the State Control of signaling channel.The D passage ID that access control unit input need be carried out access control, and the access control of being responsible for carrying out the corresponding ISDN terminal of this D passage institute is operated.As shown in Figure 5, it further comprises with lower unit again.
Search the unit:
After having determined the D passage of ISDN terminal, search the unit and be responsible in above-mentioned D channel status table, searching state with this D passage.
Suppose that through searching, the D channel status of CID=10 is deexcitation.
Allow to insert processing unit:
Be used to accept the request for building link of the ISDN terminal that received, and initiate request for building link to ISDN terminal on one's own initiative.
Refusal inserts processing unit:
Be used to refuse the request for building link of the ISDN terminal that received, and forbid initiating request for building link to this ISDN terminal.
Control unit:
The access control unit of ISDN determines whether to allow the access of the ISDN terminal corresponding with this D passage according to the state of searching the determined D passage in unit.If the state of D passage is a state of activation, then allow its access, if the D channel status is a deactivation status, then refuse its access.
Whether allow this ISDN terminal to insert and show as here, whether accept the request for building link that this ISDN terminal sends.So if allow this ISDN terminal to insert, then notice allows to insert processing unit processes; Insert if refuse this ISDN terminal, then the notice refusal inserts processing unit processes.
Like this, according to above hypothesis, for the ISDN terminal of above-mentioned CID=10, the access control unit can not send to it and set up link request, simultaneously when it receive that this ISDN terminal sends set up link request the time, also can refuse this request.Because the link between this ISDN terminal and the exchange can't be set up, so the ISDN terminal of this CID=10 can't be linked into ISDN exchange.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (14)
1. control the method that user side equipment inserts for one kind, described user side equipment is set up link by signaling channel and network side, transmits data by the Bearer Channel that is associated with signaling channel, it is characterized in that, the state of default signaling channel, and may further comprise the steps:
A) the access request message of reception user side equipment;
B) determine the pairing signaling channel of this user side equipment;
C) state according to described signaling channel determines whether to allow to insert this user side equipment.
2. the method that control user side equipment as claimed in claim 1 inserts is characterized in that, the state of described signaling channel is according to setting respectively the access control needs of each user side equipment, and the state of signaling channel comprises state of activation and deactivation status.
3. the method that control user side equipment as claimed in claim 2 inserts is characterized in that:
Step c) is described to determine whether that allowing to insert this user side equipment is: if state is a state of activation, then allow to insert this user side equipment, otherwise refusal inserts this user side equipment.
4. the method that control user side equipment as claimed in claim 1 inserts is characterized in that:
The described access request message of step a) is a request for building link message.
5. the method that control user side equipment as claimed in claim 4 inserts is characterized in that:
The described permission of step c) inserts this user side equipment for accepting request for building link or initiating request for building link to this user side equipment, described refusal inserts this user side equipment and is the refusal request for building link, and forbids initiating request for building link to this user side equipment.
6. as the method for each described control user side equipment access of claim 1 to 5, it is characterized in that: described signaling channel is the integrated services digital network signaling channel.
7. as the method for each described control user side equipment access of claim 1 to 5, it is characterized in that: described user side equipment is that integrated services digital network passes through the user terminal that primary rate interface PRI inserts.
8. control the device that user side equipment inserts for one kind, it is characterized in that, comprising:
Preset the unit, be used to set the state of signaling channel;
Receiving element is used to receive the access request message that user side equipment sends;
Channels determining unit links to each other with receiving element, is used for determining inserting the corresponding signaling channel of requesting users side apparatus with described sending;
The access control unit links to each other with default unit, receiving element and channels determining unit, is used for whether allowing according to the State Control of signaling channel the access of described user side equipment.
9. the device that control user side equipment as claimed in claim 8 inserts is characterized in that, described default unit is according to the state of the access control needs of each user side equipment being set signaling channel respectively, and this state comprises state of activation and deactivation status.
10. the device that control user side equipment as claimed in claim 9 inserts is characterized in that described access control unit further comprises:
Search the unit, according to definite signaling channel search with its to corresponding state;
Allow to insert processing unit, be used to accept the access of user side equipment;
Refusal inserts processing unit, is used for the access of refusing user's side apparatus;
Control unit judges whether to allow user side equipment to insert according to the state of signaling channel, if state is a state of activation, notice allows to insert processing unit processes, otherwise the notice refusal inserts processing unit processes.
11. the device that control user side equipment as claimed in claim 10 inserts is characterized in that the access request message that described receiving element received is a request for building link message.
12. the device that control user side equipment as claimed in claim 11 inserts is characterized in that:
The described access of accepting user side equipment is for accepting request for building link or initiating request for building link to this user side equipment;
The access of described refusing user's side apparatus is for refusing request for building link and forbidding initiating request for building link to this user side equipment.
13. the method as each described control user side equipment of claim 8 to 12 inserts is characterized in that described signaling channel is the integrated services digital network signaling channel.
14., it is characterized in that described user side equipment is that integrated services digital network passes through the user terminal that primary rate PRI interface inserts as each described user side equipment access control apparatus of claim 8 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100357067A CN100488285C (en) | 2006-05-30 | 2006-05-30 | Method and apparatus for controlling subscriber-side device access |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100357067A CN100488285C (en) | 2006-05-30 | 2006-05-30 | Method and apparatus for controlling subscriber-side device access |
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| Publication Number | Publication Date |
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| CN1968497A true CN1968497A (en) | 2007-05-23 |
| CN100488285C CN100488285C (en) | 2009-05-13 |
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| CNB2006100357067A Expired - Fee Related CN100488285C (en) | 2006-05-30 | 2006-05-30 | Method and apparatus for controlling subscriber-side device access |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109996324A (en) * | 2017-12-29 | 2019-07-09 | 展讯通信（上海）有限公司 | EPS loaded state synchronous method, device and network side equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109996324A (en) * | 2017-12-29 | 2019-07-09 | 展讯通信（上海）有限公司 | EPS loaded state synchronous method, device and network side equipment |
| CN109996324B (en) * | 2017-12-29 | 2022-03-01 | 展讯通信（上海）有限公司 | EPS bearing state synchronization method, device and network side equipment |
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| CN100488285C (en) | 2009-05-13 |
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