CN100461691C - Method of obtaining state of transmission channel - Google Patents
Method of obtaining state of transmission channel Download PDFInfo
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- CN100461691C CN100461691C CNB2005101016968A CN200510101696A CN100461691C CN 100461691 C CN100461691 C CN 100461691C CN B2005101016968 A CNB2005101016968 A CN B2005101016968A CN 200510101696 A CN200510101696 A CN 200510101696A CN 100461691 C CN100461691 C CN 100461691C
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- media gateway
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- transmission channel
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000012550 audit Methods 0.000 claims abstract description 49
- 230000007257 malfunction Effects 0.000 claims description 8
- 108091006146 Channels Proteins 0.000 description 80
- 230000011664 signaling Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The method is in use for network in next generation. For a transmission channel, media gateway controller audits end points on media gateway corresponding to configured circuits in prearranged quantity. Based on audited result, the controller determines state of the transmission channel. The prearranged quantity is smaller than total number of already configured circuits in transmission channel. The invention reduces load of link and gateway when auditing end points, and increases auditing speed.
Description
Technical field
The present invention relates to communication technical field, more particularly, relate to the method for obtaining state of transmission channel in a kind of next generation network by audit endpoint.
Background technology
At next generation network (Next Generation Network, abbreviation NGN) under the architectural framework, calling out control is separated with carrying, logical circuit is located at Media Gateway Controller (Media Gateway Controller, be called for short MGC) on, the media gateway (Media Gateway is called for short MG) that is connected physical circuit (for example, the E1/T1 line) goes up and forms transmission channel.Each transmission channel is divided into a plurality of time slots by the time component, and a shared little time period of each speech channel is a time slot (a time division multiplexing time slot).The time slot of the transmission channel on the logical circuit on the MGC, the end points on the MG and the MG is corresponding one by one, and H.248 MGC by MGCP, wait MGCP to realize mutual with MG.
Because physical circuit is connected on the MG, MGC must just can obtain the state that MG goes up transmission channel by certain mechanism: a kind of method is the state that is initiatively reported transmission channel by MG, and another kind of method is to obtain the state of transmission channel by the endpoint status on the audit active inquiry MG.
Wherein, audit is meant that MGC passes through the related command (order among the MGCP is AuditEndpoints, and H.248 the order in is AuditValue) among the MGCP/H.248, the attribute of inquiry MG upper extreme point.MG audits to the end points on it after receiving the audit request of MGC, and reports endpoint status (auditing result) in response message.MGC can be according to the auditing result that obtains the response message that reports from MG, and correspondence is provided with the state of logical circuit on it.
Obtain the method for state of transmission channel under the current NGN architectural framework by endpoint audit, audit and auditing during fault in the time of can being divided into the spare time according to the difference of operating position, audit is meant in normal use when wherein not busy, MGC regularly goes up all end points to MG and audits, and judges the state of transmission channel according to the auditing result that obtains; Audit is meant when end points breaks down during fault, and MGC issues audit message immediately all end points are audited, and regularly all fault end points is audited afterwards, and judge the state of transmission channel according to auditing result when obtaining auditing result.
No matter adopt which kind of mode that end points is audited and obtain the state of transmission channel, all need to MGC go up to time slot that should transmission channel all the pairing time division multiplexing end points of configuration circuit audit.Like this, the audit message number that MGC need issue is a lot, has therefore increased the weight of the load of gateway and link, causes audit speed slow.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of method of obtaining media gateway upper extreme point state is provided, and to reduce media gateway and link load, improves audit speed.
The technical solution adopted for the present invention to solve the technical problems is: a kind of method of obtaining media gateway upper extreme point state, be used for next generation network, for the transmission channel that takies of configuration circuit on the Media Gateway Controller, the described Media Gateway Controller end points on the media gateway of configuration circuit correspondence of predetermined number in the described transmission channel of auditing, and judge the state of the end points of described transmission channel correspondence according to auditing result, wherein said predetermined number is less than the sum of the end points of described transmission channel correspondence.
End points on the media gateway of the time slot correspondence of the transmission channel that the configuration circuit of the method that the present invention obtains state of transmission channel by predetermined number on the audit Media Gateway Controller takies obtains the state of the end points of this transmission channel correspondence, end points because of the predetermined quantity of only need auditing to same transmission channel, promptly issue the audit message of predetermined quantity, reduced the quantity that needs the end points of audit, reduce the quantity of the audit message that issues, thereby reduced the load of link and media gateway; Owing to need the minimizing of issuing message, the end points on the media gateway of more circuit correspondence of auditing of same unit interval, thus improved audit speed; Simultaneously, because of the present invention can be under various failure conditions, carry out on the basis of improving audit speed, having guaranteed the accuracy of audit to the endpoint audit on the media gateway of the correspondence of configuration circuit of predetermined quantity in the same transmission channel with to all conversions between the endpoint audit on the media gateway of configuration circuit correspondence in the same transmission channel.
Description of drawings
Fig. 1 is the flow chart that the present invention obtains the method for state of transmission channel;
Fig. 2 is the flow chart of first embodiment of the invention;
Fig. 3 is the flow chart of second embodiment of the invention.
Embodiment
Basic principle of the present invention is: because time slot is the notion of temporal meaning, though on logic, transmission channel can be divided into several slots by multiplex technique such as time division multiplexing or frequency division multiplexing, but physically, these time slots are all in same transmission channel, its state is consistent, that is to say, if the end points on the media gateway of a time slot correspondence in transmission channel breaks down, the end points on the media gateway of this transmission channel all time slot correspondences of dividing all can have fault so.Therefore the present invention adopts the state of (or a plurality of) time slot to represent the state of whole transmission channel, (or a plurality of) end points on the media gateway of (or a plurality of) time slot correspondence of the transmission channel that takies by audit one (or a plurality of) on Media Gateway Controller configuration circuit (refer to disposed on the Media Gateway Controller circuit) obtains the state of this transmission channel.
As shown in Figure 1, the present invention obtains the method for state of transmission channel, is used for next generation network, and at first, at step S100, Media Gateway Controller judges whether the configuration circuit on it moves normally.If the configuration circuit on judgement Media Gateway Controller operation is normal, then at step S101, for a transmission channel, auditing at a fixed time is the end points on the media gateway of the correspondence of configuration circuit of predetermined number wherein; Otherwise, when Media Gateway Controller judge on it there is fault in configuration circuit the time, at step S102, for a transmission channel, the end points on the media gateway of the correspondence of configuration circuit of predetermined quantity wherein of auditing immediately.Then, at step S103, Media Gateway Controller is judged the state of the circuit place transmission channel on the corresponding Media Gateway Controller of end points according to the auditing result to corresponding endpoint.Wherein predetermined number can be set according to actual needs less than the sum of configuration circuit in this transmission channel.Be that a circuit and a plurality of circuit are that the present invention will be further described for example with the circuit of predetermined number respectively below.
First embodiment of the invention is changed to 1 with predetermined number.As shown in Figure 2, at step S200, Media Gateway Controller judges whether the configuration circuit on it moves normally.If the operation of the configuration circuit on the Media Gateway Controller is normal, then at step S201, for a transmission channel, regularly to one of them the end points on the media gateway of configuration circuit correspondence audit, this circuit can be Media Gateway Controller its in the configuration circuit circuit of picked at random also can be a preassigned configuration circuit, if preassigned circuit, then can be the circuit of circuit number minimum in the configuration circuit, also can be circuit or other any specified circuit of circuit number maximum.Otherwise, when Media Gateway Controller judge on it there is fault in configuration circuit the time, if having the configuration circuit of fault in the transmission channel is one, then at step S202, the end points on the media gateway of the correspondence of configuration circuit of this fault of auditing immediately; If it is a plurality of having the configuration circuit of fault in the transmission channel, then at step S203, end points in the configuration circuit of these a plurality of faults of auditing immediately on the media gateway of the circuit correspondence of circuit number minimum, certainly, end points on the media gateway of the circuit of the circuit number maximum wherein of also can auditing or the correspondence of configuration circuit of arbitrary fault, perhaps one of picked at random configuration circuit, the end points on the media gateway of this circuit correspondence of auditing.
Then, at step S204, in judging at the appointed time, Media Gateway Controller whether obtains auditing result to corresponding endpoint.If do not obtain auditing result at the appointed time to end points, the transmission channel of then judging the circuit place on the Media Gateway Controller of this end points correspondence is that down state is a malfunction, enter step S206 subsequently, all in this transmission channel of auditing at a fixed time are the end points on the media gateway of configuration circuit correspondence.
After Media Gateway Controller obtains auditing result to corresponding endpoint at the appointed time, at step S205, judge whether this end points is in available attitude, and according to judged result upgrade with the Media Gateway Controller of this end points corresponding circuits in same transmission channel on all states of configuration circuit: if the end points of audit is in available attitude, then the transmission channel to circuit place that should end points is that upstate is a normal condition, returns step S200; Otherwise, be that down state is a malfunction to the transmission channel at circuit place that should end points, and enter step S206 subsequently that all in this transmission channel of auditing at a fixed time are the end points on the media gateway of configuration circuit correspondence.
Among the step S206, when judging that transmission channel is malfunction, in this transmission channel of auditing at a fixed time all are the end points on the media gateway of configuration circuit correspondence, when certain is audited to this transmission channel in all auditing result unanimities of the end points on the media gateway of configuration circuit correspondence, return step S200 again.
Second embodiment of the invention is changed to a plurality of (at least two) with predetermined number.As shown in Figure 3, at step S300, Media Gateway Controller judges whether the configuration circuit on it moves normally.If the operation of the configuration circuit on the Media Gateway Controller is normal, then at step S301, for a transmission channel, regularly the end points on the media gateway of a plurality of correspondences of configuration circuit is wherein audited, these a plurality of configuration circuits can be that a plurality of circuit of picked at random in configuration circuit also can be a plurality of configuration circuits of appointment, as a plurality of configuration circuits of circuit number order increasing or decreasing; Otherwise, when Media Gateway Controller judge on it there is fault in configuration circuit the time, if having the configuration circuit of fault in the transmission channel is one, then at step S302, the end points on the media gateway of the correspondence of configuration circuit of this fault of auditing immediately; If it is a plurality of having the circuit of fault in the transmission channel, then at step S303, the end points in the configuration circuit of this fault of auditing immediately on the media gateway of at least two circuit correspondences.
Be noted that before the one group of auditing result that obtains the end points on the media gateway of a plurality of circuit correspondences in the transmission channel, generally the end points on the media gateway of the circuit correspondence in this transmission channel do not carried out new one group of audit.
Then, at step S304, in judging at the appointed time, Media Gateway Controller whether obtains all auditing results (one or more) that the end points on the media gateway of the correspondence of configuration circuit in the transmission channel is audited, if do not obtain all auditing results that the end points on the media gateway of the correspondence of configuration circuit in this transmission channel is audited at the appointed time, judge that then this transmission channel is that down state is a malfunction, enter step S306 subsequently, the end points on the media gateway of all the circuit correspondences in this transmission channel of auditing at a fixed time.
If Media Gateway Controller obtains all auditing results that the end points on the media gateway of the correspondence of configuration circuit in this transmission channel is audited at the appointed time, then according to the state of this transmission channel at the circuit place on the Media Gateway Controller of all auditing results of end points being determined jointly the end points correspondence.At first at step S305, whether all auditing results that judgement is audited to the end points on the media gateway of the correspondence of configuration circuit in this transmission channel are consistent, if auditing result is inconsistent, judge that then this transmission channel is that down state is a malfunction, enter step S306 subsequently, all end points on the media gateway of configuration circuit correspondence in this transmission channel of auditing at a fixed time; Otherwise if to all auditing result unanimities of end points, then execution in step S307 judges whether the end points of being audited is in available attitude, and upgrades on the Media Gateway Controller in this transmission channel all states of configuration circuit according to judged result.If the end points of being audited all is in available attitude, then this transmission channel is that upstate is a normal condition, returns step 300; If at least one end points is in unavailable attitude in the auditing result, then this transmission channel is that down state is a malfunction, and enters step S306 subsequently, the end points on the media gateway of all the circuit correspondences in this transmission channel of auditing at a fixed time.
Among the step S306, in auditing at a fixed time one transmission channel all are the end points on the media gateway of configuration circuit correspondence, the auditing result that when certain is audited, obtains show in this transmission channel all the end points on the media gateway of configuration circuit correspondence all be in available attitude, return step 300 again.
As a kind of selectable execution mode, the present invention can dispose in the audit measure of the end points on the media gateway of the correspondence of configuration circuit of predetermined number in transmission channel of auditing at a fixed time and transmission channel of auditing at a fixed time all audit measures of the end points on the media gateway of configuration circuit correspondence simultaneously on Media Gateway Controller, according to user's needs difference is set and constantly starts different audit measures, obtain the state of transmission channel.All can be undertaken by existing method when the end points on the media gateway of configuration circuit correspondence has obtained the state of transmission channel in selecting by transmission channel of auditing at a fixed time; When selection is obtained the state of transmission channel by the end points on the media gateway of the correspondence of configuration circuit of predetermined quantity in transmission channel of auditing at a fixed time, can according to as 2 or first embodiment or second embodiment shown in Figure 3 carry out.
Implement the present invention, can reduce link and media gateway load, improve audit speed.Illustrate with object lesson, when the media gateway location because earthquake, when causing the E1 line (transmission channel) that connects on the media gateway to be damaged in a large number, Media Gateway Controller needs audit to the E1 line that damages immediately.Suppose to have 10 E1 lines to be damaged, adopt the prior art scheme, need 300 circuit correspondences of audit end points (because of 0 time slot of E1 line as synchronously, 16 time slots are used for passing line signalling when the E1 line passes channel associated signalling, generally can issue audit message (but when transmitting common channel signalling, need issue audit message)), and enforcement the present invention, the end points of 30 or 30 * m (m is the quantity of the time slot in each audit one E1 line) the circuit correspondences of only need auditing.This shows, implement the quantity that the present invention can greatly reduce the end points that needs audit, reduce the quantity of the audit message that issues, thus the load of link and media gateway when having reduced audit endpoint; Owing to need the minimizing of issuing message, the end points on the media gateway of more circuit correspondence of auditing of same unit interval, thus improved audit speed.
Simultaneously, because of the present invention can be under various failure conditions, carry out (or a plurality of) endpoint audit on the media gateway of configuration circuit correspondence and to all conversions between the endpoint audit on the media gateway of configuration circuit correspondence in the transmission channel, on the basis of improving audit speed, guaranteed the accuracy of audit one (or a plurality of) in the transmission channel.
Claims (6)
1. method of obtaining media gateway upper extreme point state, be used for next generation network, it is characterized in that, for the transmission channel that takies of configuration circuit on the Media Gateway Controller, the described Media Gateway Controller end points on the media gateway of configuration circuit correspondence of predetermined number in the described transmission channel of auditing, and judge the state of the end points of described transmission channel correspondence according to auditing result, wherein said predetermined number is less than the sum of the end points of described transmission channel correspondence.
2. the method for obtaining media gateway upper extreme point state according to claim 1 is characterized in that described method specifically comprises the following steps:
(1) Media Gateway Controller judges whether the configuration circuit on it moves normally;
(2) if judge that configuration circuit is normal, then for a transmission channel, the Media Gateway Controller auditing at a fixed time is the end points on the media gateway of the correspondence of configuration circuit of predetermined number wherein;
(3) otherwise, when judging the configuration circuit operation troubles, for a transmission channel, the Media Gateway Controller end points on the media gateway of configuration circuit correspondence of predetermined number in the described transmission channel of auditing immediately;
(4) Media Gateway Controller is judged the state of other end points of not audited in the circuit place transmission channel on the corresponding Media Gateway Controller of corresponding endpoint according to the auditing result to end points.
3. the method for obtaining media gateway upper extreme point state according to claim 1 and 2 is characterized in that, in the described transmission channel predetermined number the end points on the media gateway of configuration circuit correspondence be that Media Gateway Controller is selected at random or preassigned.
4. the method for obtaining media gateway upper extreme point state according to claim 2 is characterized in that, the described predetermined number end points on the media gateway of configuration circuit correspondence is more than one end points.
5. the method for obtaining media gateway upper extreme point state according to claim 1 is characterized in that, describedly judges that according to auditing result the state of described transmission channel specifically comprises:
Whether the auditing result and the described end points that whether obtain described end points in judging at the appointed time according to auditing result are in upstate;
If judged result is for being that then described channel is a normal condition.
6. the method for obtaining media gateway upper extreme point state according to claim 5 is characterized in that, described step (4) further comprises:
A. whether obtain auditing result in Media Gateway Controller is judged at the appointed time to described end points;
If b. do not obtain auditing result at the appointed time, judge that then the transmission channel at the circuit place on the Media Gateway Controller of this end points correspondence is a malfunction to end points;
C. otherwise, judge whether the end points of audit is in available attitude, if the end points of audit is in available attitude, judge that then the transmission channel to circuit place that should end points is a normal condition; If the end points of audit is in unavailable attitude, judge that then the transmission channel to circuit place that should end points is a malfunction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101016968A CN100461691C (en) | 2005-11-22 | 2005-11-22 | Method of obtaining state of transmission channel |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005101016968A CN100461691C (en) | 2005-11-22 | 2005-11-22 | Method of obtaining state of transmission channel |
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| CN1874261A CN1874261A (en) | 2006-12-06 |
| CN100461691C true CN100461691C (en) | 2009-02-11 |
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| CNB2005101016968A Expired - Fee Related CN100461691C (en) | 2005-11-22 | 2005-11-22 | Method of obtaining state of transmission channel |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101299732B (en) * | 2007-04-30 | 2011-11-16 | 华为技术有限公司 | Circuit batch auditing method, medium gateway and medium gateway controller |
| CN110830093B (en) | 2018-08-10 | 2021-10-15 | 华为技术有限公司 | Method and device for transmitting channel state information |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1509031A (en) * | 2002-12-19 | 2004-06-30 | 华为技术有限公司 | Media gateway controler and interacting method between media gateways |
| CN1533113A (en) * | 2003-03-20 | 2004-09-29 | 华为技术有限公司 | Method for detecting transmission link state by using medium gateway control protocol |
| WO2004089003A1 (en) * | 2003-03-31 | 2004-10-14 | Siemens Aktiengesellschaft | Communication method between a media gateway controller and a media gateway |
| CN1558613A (en) * | 2004-02-05 | 2004-12-29 | 中兴通讯股份有限公司 | Method for self-detecting speech coding/decoding channel conducting capability for media gateway equipment |
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2005
- 2005-11-22 CN CNB2005101016968A patent/CN100461691C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1509031A (en) * | 2002-12-19 | 2004-06-30 | 华为技术有限公司 | Media gateway controler and interacting method between media gateways |
| CN1533113A (en) * | 2003-03-20 | 2004-09-29 | 华为技术有限公司 | Method for detecting transmission link state by using medium gateway control protocol |
| WO2004089003A1 (en) * | 2003-03-31 | 2004-10-14 | Siemens Aktiengesellschaft | Communication method between a media gateway controller and a media gateway |
| CN1558613A (en) * | 2004-02-05 | 2004-12-29 | 中兴通讯股份有限公司 | Method for self-detecting speech coding/decoding channel conducting capability for media gateway equipment |
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