CN101582958B - Method and device for ring-current power management in communication equipment - Google Patents
Method and device for ring-current power management in communication equipment Download PDFInfo
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- CN101582958B CN101582958B CN2008100372901A CN200810037290A CN101582958B CN 101582958 B CN101582958 B CN 101582958B CN 2008100372901 A CN2008100372901 A CN 2008100372901A CN 200810037290 A CN200810037290 A CN 200810037290A CN 101582958 B CN101582958 B CN 101582958B
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Abstract
The invention provides a method and a device for ring-current power management in communication equipment. In the communication equipment which needs to provide ring current for a user terminal, whether the ring-current power required by a new request is lower than or equal to the ring-current power remained from a ring-current source for distributing the ring-current power or not is firstly judged after the new calling ring-current request is received; and if the required ring-current power is less than or equal to the ring-current power remained from the ring-current source, the required ring-current power is distributed to the new ring-current requests. The invention can enable the ring-current source of the communication equipment to support larger simultaneous ringing numbers, improves the operation performance of the system and reduces the design cost of the system.
Description
Technical field
The present invention relates to be connected with the communication equipment of subscriber line circuit loop, particularly a kind of method of ring-current power management and device thereof.
Background technology
In existing communication system, shown in Fig. 1 a, if user terminal is connected with system equipment through the subscriber line circuit loop; Then, often do not require that user terminal must provide the power supply that makes its ring separately, provides ringing-current and change by system equipment through the subscriber line circuit loop in order to simplify the design of subscriber terminal side; Make it produce ring; In the communication system shown in Fig. 1 a, subscriber connecting equipment can be that called user terminal 111 provides ringing-current through local loop, makes it that ring take place.Fig. 1 b has shown the analog line interface board (being a kind of implementation of subscriber connecting equipment among Fig. 1 a) of existing stored-program control exchange, comprising a plurality of SLICs (SLIC, Subscriber LineInterface Circuits).Usually, in this analog line Design of Interface Circuit, for the design of simplifying the peripheral ringing-current source that is connected with this analog line circuit interface board with reduce cost, adopt a plurality of SLIC to share a ringing-current source usually.Shown in Fig. 1 b, n SLIC shared a ringing-current source.
And consider in system's actual moving process; The probability that ring takes place a plurality of user terminals that are connected with same ringing-current source through the subscriber line circuit loop simultaneously is very little; Therefore when system design; The power that is disposed for the ringing-current source can not make all user terminal generation rings that are attached thereto simultaneously, and promptly shown in Fig. 1 b, the maximum number of ring simultaneously that the ringing-current source can be supported will be much smaller than n.
In addition, because each user terminal and the physical parameters such as distance that are attached thereto between the communication equipment that connects have nothing in common with each other, therefore make the needed ringing-current power of each user terminal generation ring also have nothing in common with each other.In the prior art, communication equipment can suppose that the needed ringing-current power of each user terminal is all identical, and all consumes maximum ringing-current power P
MaxLike this, if the gross output in ringing-current source is P, then this ringing-current source can make the number of user terminal ring simultaneously may be calculated M
Max=[P/P
Max], operator [] expression rounds downwards.Therefore, in the prior art, if the ringing-current source has been M
MaxIndividual user terminal provides ringing-current, receives this moment to distribute new ringing-current application again, and then no matter whether the residue ringing-current power in ringing-current source enough makes the user terminal generation ring of new application, and refusal should new application without exception.
And in the actual motion, be not that each terminal use need consume maximum ringing-current power P
Max, therefore working as the ringing-current source is M
MaxWhen individual user terminal provides ringing-current, often also have enough residue ringing-current power to make more user terminal that ringing-current power is provided.Because the M of the largest user terminal number of being scheduled to
MaxRestriction, this part dump power just has been wasted usually.
Summary of the invention
The present invention seeks to solving above-mentioned technical problem of the prior art; And a kind of technical scheme that in communication equipment, is used for ring-current power management has been proposed; Communication equipment is when receiving new ringing-current application; Calculate the ringing-current power of each user terminal actual consumption, and judge whether and to distribute ringing-current power for new ringing-current application according to the current residue ringing-current power in ringing-current source.
According to a first aspect of the invention; A kind of method that in communication equipment, is used for ring-current power management is provided; After the communication equipment of being in charge of the ringing-current source power receives the new ringing-current application of an incoming call, judge earlier whether the required ringing-current power of this new application is less than or equal to the remaining ringing-current power in ringing-current source that distributes ringing-current power into it; If its required ringing-current power is less than or equal to the remaining ringing-current power in corresponding ringing-current source, then be that this new ringing-current application distributes its required ringing-current power.
According to another aspect of the present invention, a kind of management devices that in communication equipment, is used for ring-current power management is provided, this device comprises receiving system, is used to receive the new ringing-current application of an incoming call; And judgment means, be used to judge whether the required ringing-current power of said new ringing-current application is less than or equal to the remaining ringing-current power in ringing-current source that distributes ringing-current power into said new ringing-current application; And distributor, be less than or equal to the remaining ringing-current power in said ringing-current source if be used for the required ringing-current power of said new ringing-current application, then distribute required ringing-current power for said new ringing-current application.
Compared with prior art, the present invention has the following advantages:
1. under same system configuration, as dispose identical ringing-current source power, through the present invention, can so that system when operation, obtain bigger in the ring number, can make more user terminal that ring takes place simultaneously;
2. through the present invention; Can be so that the situation that failure takes place to distribute when distributing ringing-current communication equipment still less, if promptly current do not have enough ringing-current power can supply to distribute, be then waited for certain hour earlier; If having ringing-current power to discharge in the period at this section takes place; Judged whether enough ringing-current power division so again, taken place to make the situation of whole call failure with regard to having reduced like this, thereby improve systematic function because of ringing-current distributes failure;
3. through the present invention, ring number identical the time can be the littler ringing-current power of system configuration when system design, thereby reduce the system design cost in order to satisfy.
Description of drawings
Fig. 1 a has shown the communication system of the telecommunication circuit that comprises wired subscriber line circuit loop;
Fig. 1 b has shown the circuit block diagram that each SLIC ringing-current in the analog line interface board of existing switch is shared;
Fig. 2 has shown that an embodiment according to the present invention manages the method flow diagram of ringing-current power in communication equipment;
Fig. 3 has shown that another embodiment according to the present invention manages the method flow diagram of ringing-current in communication equipment;
Fig. 4 has shown that an embodiment according to the present invention manages the device block diagram of ringing-current power in communication equipment;
Fig. 5 has shown that another embodiment according to the present invention manages the device block diagram of ringing-current power in communication equipment.
Embodiment
Below through several specific embodiments the technical scheme that the present invention relates to is described in further detail.
Embodiment one
Fig. 2 has shown that an embodiment according to the present invention manages the method flow diagram of ringing-current power in communication equipment.Following with reference to Fig. 2 and combine Fig. 1 a, the method that in the switching equipment shown in Fig. 1 a, is used for ring-current power management is described in detail.Suppose that the call subscriber terminal 110 shown in Fig. 1 a is through local loop 140 and subscriber connecting equipment 120; Make a call to called user terminal 111; Switching equipment 130 is after the request that receives call subscriber terminal 110 initiations; If finding that called user terminal 111 is in can called state, then can initiate the incoming call requests to called user terminal 111, and through subscriber connecting equipment 121 and local loop 141; To called user terminal 111 ringing-current is provided, so that ring takes place terminal called 111.Corresponding, switching equipment 130 will pass through following steps:
At first, in step S21, switching equipment 130 receives a new ringing-current application that distributes ringing-current for incoming call.
Secondly, in step S22, switching equipment 130 judges whether the required ringing-current power of new ringing-current application is less than or equal to the remaining ringing-current power in ringing-current source that distributes ringing-current power into said new ringing-current application.Deterministic process comprises following dual mode at least: mode one: the size of the maximum power that current power sum that has consumed in ringing-current power that newer ringing-current application is required and ringing-current source and ringing-current source can provide; Mode two: the size of the ringing-current power that newer ringing-current application is required and the dump power in ringing-current source, wherein the dump power in the ringing-current source maximum power that can provide for the ringing-current source deducts the current power that has consumed in ringing-current source.
Particularly; Switching equipment 130 can obtain the concrete ringing-current power of the needed reality of this new ringing-current application through modes such as inquiry or calculating; And obtain to be responsible for the dump power that this application is distributed the ringing-current source of ringing-current power, judge whether this ringing-current source has enough residue ringing-current power division to give this new ringing-current application.
Below to above-mentioned inquiry with calculate dual mode and describe.
Mode one: inquiry
Usually; The circuit of user terminal is fixed; Thereby each parameter of subscriber line circuit loop is also fixed, and switching equipment 130 obtains the concrete ringing-current power of the needed reality of this new ringing-current application through the mode of inquiring about and is the remaining ringing-current power in ringing-current source that this new ringing-current application distributes ringing-current power.Particularly; Owing to fix at the circuit of user terminal; Each parameter of each subscriber line circuit loop is also fixing; Therefore the ringing-current power that consumed of each subscriber line circuit loop is also fixed, therefore, and the ringing-current power parameter information that is consumed during the ring of each subscriber line circuit loop that can prestore in the switching equipment 130.
Mode two: calculate
More specifically; Obtain the method for the concrete ringing-current power of the needed reality of this new ringing-current application through approach such as inquiry or calculating; Comprise: the relevant parameter that obtains the corresponding subscriber line circuit loop of this new ringing-current application earlier; And then utilize these relevant parameters, calculate the ringing-current power of its required reality.More specifically, can obtain the relevant parameter of subscriber line circuit loop through the method for Single Ended Loop Testing.Wherein, in these parameters, comprise that the most important parameter of calculating required ringing-current power is the dc impedance R of subscriber line circuit loop
cWith AC impedance R
Ac, at ringing-current voltage alternating voltage Uac and direct voltage U
cUnder the known situation, calculate direct current power P respectively
cWith AC power P
Ac, ringing-current power P=P during ring then
c+ P
Ac
More preferably; Relevant test to the subscriber line circuit loop; Such as Single Ended Loop Testing, can periodically carry out automatically, and the circuit parameter that is obtained is kept in the switching equipment 130 by switching equipment 130; When needs use above-mentioned parameter, can in time obtain easily through the mode of inquiry.
Then, through judging, if the new required ringing-current power of ringing-current application is less than or equal to the remaining ringing-current power in ringing-current source, execution in step S23 then, promptly the ringing-current source was for should new application distributing ringing-current power, this application success; If the new required ringing-current power of ringing-current application is higher than the remaining ringing-current power in ringing-current source, execution in step S24 then, promptly ringing-current source refusal was for should new application distributing ringing-current power, this application failure.
Need to prove; Because the function of existing switching equipment 130 from strength to strength; Usually in a switching equipment 130, can have and a plurality of analog line interface boards; Possible each analog line interface board has a ringing-current source, also possibly be the public ringing-current sources of a plurality of analog line interface boards.Ringing-current source described in this paper if no special instructions, all refers to distribute for new ringing-current application the ringing-current source of ringing-current power.
Need to prove in addition; Though embodiment one is an example with traditional exchange equipment 130 method of ring-current power management of the present invention is illustrated; Those of ordinary skill in the art will be understood that method of the present invention is not limited to only be applied in the switching equipment shown in Fig. 1 a, in other communication equipment that can also be applied to ringing-current power is specifically managed, distributed; In the communication system that comprises the subscriber line circuit loop for other; As keeping at some in the VoIP switch device of subscriber line circuit loops, for telephone terminal and do not require ringing current power source is provided separately that the present invention also all can be suitable for.
Embodiment two
Fig. 3 has shown that another embodiment according to the present invention manages the method flow diagram of ringing-current in communication equipment.In the ringing-current management method shown in this flow chart, in step S31, the communication equipment of being responsible for ring-current power management receives a new ringing-current application that distributes ringing-current for incoming call;
Secondly; In step S32; Judge whether the required ringing-current power of said new ringing-current application is less than or equal to the remaining ringing-current power in ringing-current source that distributes ringing-current power into said new ringing-current application; Promptly particularly; Can obtain the concrete ringing-current power of the needed reality of this new ringing-current application through approach such as inquiry or calculating, and obtain to be responsible for the dump power that this application is distributed the ringing-current source of ringing-current power, judge whether this ringing-current source has enough residue ringing-current power division to give this new ringing-current application;
Particularly; Obtain the method for the concrete ringing-current power of the needed reality of this new ringing-current application through approach such as inquiry or calculating; Comprise: the relevant parameter that obtains the corresponding subscriber line circuit loop of this new ringing-current application earlier; And then utilize these relevant parameters, calculate the ringing-current power of its required reality.More specifically, can obtain the relevant parameter of subscriber line circuit loop through the method for Single Ended Loop Testing.Wherein, in these parameters, comprise that the most important parameter of calculating required ringing-current power is the dc impedance R of subscriber line circuit loop
cWith AC impedance R
Ac
In addition; Because the user that required ringing-current power is concrete with corresponding is relevant; If communication system obtains its required ringing-current power through other method in advance, and this parameter is kept in communication equipment or the relevant device as configuration parameter, then can obtains required ringing-current power through the method for inquiry.Such as Single Ended Loop Testing, can periodically carry out automatically, and the circuit parameter that is obtained is kept in the switching equipment 130 by switching equipment 130, when needs use above-mentioned parameter, can in time obtain easily through the mode of inquiry.
Then, through judging, if the new required ringing-current power of ringing-current application is less than or equal to the remaining ringing-current power in ringing-current source, execution in step S33 then, promptly the ringing-current source was for should new application distributing ringing-current power, this application success; If the new required ringing-current power of ringing-current application is higher than the remaining ringing-current power in ringing-current source, then whether execution in step S34 promptly detects scheduled event and takes place, if detect scheduled event, and repeated execution of steps S32 then.
Concrete, this scheduled event comprises ringing-current power release event takes place in the given time.When other just the user of ring because change reasons such as subscribers feeder controlled state like called subscriber's off-hook, calling subscriber's on-hook, operator; When having discharged the ringing-current power of originally distributing to it, then get back to step S32 and rejudge this ringing-current source and whether have the ability to distribute ringing-current power for this new ringing-current application.
If detect less than scheduled event, then execution in step S35 promptly refuses this new ringing-current application.
Embodiment three
Fig. 4 has shown that an embodiment according to the present invention manages the device block diagram of ringing-current power in communication equipment.This ringing-current management devices 40 comprises receiving system 401, judgment means 402 and distributor 403.
Wherein, receiving system 401 is used to receive the new ringing-current application of an incoming call.
Judgment means 402; Be used to judge whether the required ringing-current power of said new ringing-current application is less than or equal to the remaining ringing-current power in ringing-current source that distributes ringing-current power into said new ringing-current application; Promptly particularly; Can obtain the concrete ringing-current power of the needed reality of this new ringing-current application through approach such as inquiry or calculating; And obtain to be responsible for the dump power that this application is distributed the ringing-current source of ringing-current power, judge whether this ringing-current source has enough residue ringing-current power division to give this new ringing-current application.
More specifically, before judgment means 402, can also comprise parameter obtaining device, be used for obtaining the concrete ringing-current power of the needed reality of this new ringing-current application through approach such as inquiry or calculating.The relevant parameter that parameter obtaining device at first obtains the corresponding subscriber line circuit loop of this new ringing-current application utilizes these relevant parameters then, calculates the ringing-current power of its required reality.Parameter obtaining device also may further include testing apparatus, is used for obtaining through the method for Single Ended Loop Testing the relevant parameter of subscriber line circuit loop.Wherein, in these parameters, comprise that the most important parameter of calculating required ringing-current power is the dc impedance R of subscriber line circuit loop
cWith AC impedance R
Ac
In addition; Because the user that required ringing-current power is concrete with corresponding is relevant; If communication system obtains its required ringing-current power through other method in advance; And this parameter is kept in communication equipment or the relevant device as configuration parameter, then testing apparatus also can obtain required ringing-current power through the method for inquiry.
In addition, distributor 403 also is used for, if the required ringing-current power of this new ringing-current application is higher than the remaining ringing-current power in ringing-current source, and then this new ringing-current application of refusal.
Embodiment four
Fig. 5 has shown that another embodiment according to the present invention manages the device block diagram of ringing-current power in communication equipment.This ringing-current management devices 50 comprises receiving system 501, judgment means 502 and distributor 503, and checkout gear 504 and control device 505.
Wherein, receiving system 501 is used to receive the new ringing-current application of an incoming call.
Judgment means 502; Be used to judge whether the required ringing-current power of said new ringing-current application is less than or equal to the remaining ringing-current power in ringing-current source that distributes ringing-current power into said new ringing-current application; Promptly particularly; Can obtain the concrete ringing-current power of the needed reality of this new ringing-current application through approach such as inquiry or calculating; And obtain to be responsible for the dump power that this application is distributed the ringing-current source of ringing-current power, judge whether this ringing-current source has enough residue ringing-current power division to give this new ringing-current application.
More specifically, before judgment means 502, can also comprise parameter obtaining device, be used for obtaining the concrete ringing-current power of the needed reality of this new ringing-current application through approach such as inquiry or calculating.The relevant parameter that parameter obtaining device at first obtains the corresponding subscriber line circuit loop of this new ringing-current application utilizes these relevant parameters then, calculates the ringing-current power of its required reality.Parameter obtaining device also may further include testing apparatus, is used for obtaining through the method for Single Ended Loop Testing the relevant parameter of subscriber line circuit loop.Wherein, in these parameters, comprise that the most important parameter of calculating required ringing-current power is the dc impedance Rc and the AC impedance Rac of subscriber line circuit loop.
In addition; Because the user that required ringing-current power is concrete with corresponding is relevant; If communication system obtains its required ringing-current power through other method in advance; And this parameter is kept in communication equipment or the relevant device as configuration parameter, then testing apparatus also can obtain required ringing-current power through the method for inquiry.
In addition, judge when judgment means 502 to draw that the required ringing-current power of this new ringing-current application is higher than the remaining ringing-current power in ringing-current source, whether then the detection starting device 504, be used to detect scheduled event and take place.Wherein, this scheduled event comprises ringing-current power release event takes place in the given time.
If checkout gear 504 detects the scheduled time, then the start-up control device 505, are used to control judgment means 502 and accomplish its above-mentioned arbitration functions and above-mentioned distribution function respectively once more with distributor 503.
In addition, distributor 503 also is used for, if the required ringing-current power of this new ringing-current application is higher than the remaining ringing-current power in ringing-current source, and then this new ringing-current application of refusal.
More than specific embodiment of the present invention is described.It will be appreciated that the present invention is not limited to above-mentioned specific implementations, those skilled in the art can make various modification or modification within the scope of the appended claims.
Claims (12)
1. a method that in communication equipment, is used for ring-current power management is characterized in that, comprises step:
Receive the new ringing-current application of an incoming call;
Wherein, also comprise:
A. obtain the required ringing-current power of said new ringing-current application;
B. judge whether the required ringing-current power of said new ringing-current application is less than or equal to the remaining ringing-current power in ringing-current source that distributes ringing-current power into said new ringing-current application;
If the required ringing-current power of c. said new ringing-current application is less than or equal to the remaining ringing-current power in said ringing-current source, then distribute required ringing-current power for said new ringing-current application.
2. the method for ring-current power management according to claim 1 is characterized in that, also comprises:
If the required ringing-current power of-said new ringing-current application is higher than the remaining ringing-current power in said ringing-current source, then refuse said new ringing-current application.
3. the method for ring-current power management according to claim 1 is characterized in that, also comprises:
If-saidly be higher than the remaining ringing-current power in said ringing-current source for the required ringing-current power of new ringing-current application, then detect scheduled event and whether take place, wherein, this scheduled event comprises ringing-current power release event takes place in the given time;
-if said scheduled event, then repeating said steps b to c take place.
4. according to each described ring-current power management method among the claim 1-3, it is characterized in that said step a also comprises the steps:
A1. obtain the relevant parameter of said new ringing-current application respective user circuit loop;
A2. based on said relevant parameter, calculating said is the required ringing-current power of said new ringing-current application.
5. ring-current power management method according to claim 4 is characterized in that, said step a1 comprises:
-obtain the relevant parameter of said new ringing-current application respective user circuit loop through Single Ended Loop Testing.
6. ring-current power management method according to claim 4 is characterized in that, said relevant parameter comprises the dc impedance and the AC impedance of said subscriber line circuit loop.
7. a management devices that in communication equipment, is used for ring-current power management is characterized in that, comprising:
-receiving system is used to receive the new ringing-current application of an incoming call;
Wherein, also comprise:
Parameter obtaining device is used to obtain the required ringing-current power of said new ringing-current application;
-judgment means is used to judge whether the required ringing-current power of said new ringing-current application is less than or equal to the remaining ringing-current power in ringing-current source that distributes ringing-current power into said new ringing-current application;
-distributor is less than or equal to the remaining ringing-current power in said ringing-current source if be used for the required ringing-current power of said new ringing-current application, then distributes required ringing-current power for said new ringing-current application.
8. the management devices that is used for ring-current power management according to claim 7 is characterized in that, said distributor also is used for:
If the required ringing-current power of-said new ringing-current application is higher than the remaining ringing-current power in said ringing-current source, then refuse said new ringing-current application.
9. the management devices that is used for ring-current power management according to claim 7 is characterized in that, also comprises:
Whether-checkout gear if be used for saidly being higher than the remaining ringing-current power in said ringing-current source for the required ringing-current power of new ringing-current application, then detect scheduled event and takes place, and wherein, this scheduled event comprises ringing-current power release event takes place in the given time;
-control device takes place if be used for said scheduled event, then controls said judgment means and said distributor and accomplishes its said deterministic process and said assigning process respectively.
10. according to each described management devices that is used for ring-current power management among the claim 7-9, it is characterized in that said parameter obtaining device also is used to obtain the relevant parameter of said new ringing-current application respective user circuit loop;
And be used for based on said relevant parameter, calculating said is the required ringing-current power of said new ringing-current application.
11. the management devices that is used for ring-current power management according to claim 10 is characterized in that, said parameter obtaining device comprises:
-testing apparatus: the relevant parameter that is used for obtaining said new ringing-current application respective user circuit loop through Single Ended Loop Testing.
12. the management devices that is used for ring-current power management according to claim 10 is characterized in that, said relevant parameter comprises the dc impedance and the AC impedance of said subscriber line circuit loop.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100372901A CN101582958B (en) | 2008-05-12 | 2008-05-12 | Method and device for ring-current power management in communication equipment |
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|---|---|---|---|
| CN2008100372901A CN101582958B (en) | 2008-05-12 | 2008-05-12 | Method and device for ring-current power management in communication equipment |
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| CN101582958A CN101582958A (en) | 2009-11-18 |
| CN101582958B true CN101582958B (en) | 2012-05-23 |
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| CN2008100372901A Active CN101582958B (en) | 2008-05-12 | 2008-05-12 | Method and device for ring-current power management in communication equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102035958A (en) * | 2010-12-17 | 2011-04-27 | 华为技术有限公司 | Plain old telephony service (POTS) call processing equipment, system and method |
| CN103167083B (en) | 2013-01-08 | 2016-03-02 | 中兴通讯股份有限公司 | A kind of VOIP terminal and ring parameter setting method thereof |
| CN109525742B (en) * | 2019-01-04 | 2020-12-08 | 烽火通信科技股份有限公司 | Intelligent ringing voltage adjusting method and system for multi-channel voice equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1267987A (en) * | 1999-03-18 | 2000-09-27 | 上海贝尔电话设备制造有限公司 | User board controller for cut-in network equipment |
| US20030185385A1 (en) * | 2002-04-01 | 2003-10-02 | Adtran, Inc. | Peak power management and active decoupling arrangement for span-powered remote terminal access platforms |
| US6735305B1 (en) * | 1999-10-04 | 2004-05-11 | Agere Systems Inc. | Detection of low tip/ring currents in a line powered DAA |
-
2008
- 2008-05-12 CN CN2008100372901A patent/CN101582958B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1267987A (en) * | 1999-03-18 | 2000-09-27 | 上海贝尔电话设备制造有限公司 | User board controller for cut-in network equipment |
| US6735305B1 (en) * | 1999-10-04 | 2004-05-11 | Agere Systems Inc. | Detection of low tip/ring currents in a line powered DAA |
| US20030185385A1 (en) * | 2002-04-01 | 2003-10-02 | Adtran, Inc. | Peak power management and active decoupling arrangement for span-powered remote terminal access platforms |
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