CN101047553A - Device and method for implementing service automatic recovery - Google Patents
Device and method for implementing service automatic recovery Download PDFInfo
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- CN101047553A CN101047553A CN 200610080516 CN200610080516A CN101047553A CN 101047553 A CN101047553 A CN 101047553A CN 200610080516 CN200610080516 CN 200610080516 CN 200610080516 A CN200610080516 A CN 200610080516A CN 101047553 A CN101047553 A CN 101047553A
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Abstract
A device used for realizing service automatic restoration consists of port state fetching unit for fetching out activation state and synchronous state of master-slave port at office end connected with said fetching unit, detection unit for obtaining said activation state and said synchronous state and for controlling port control unit to carry out activation/ deactivation operation for restoring service, and port control unit for carrying out activation/deactivation operation of master-slave port at office end according to control of detection unit. Its method for automatically restoring service is also disclosed.
Description
Technical field
(Digital Subscriber Line, DSL) technology are specifically related to the apparatus and method that a kind of realized business of the DSL of being applied to technology is automatically recovered to the present invention relates to Digital Subscriber Line.
Background technology
Along with the development of DSL technology, (Single-PairHigh-bit-Rate DSL, SHDSL) technology moves to maturity single pair high bit rate digital subscriber loop.The basic functional principle of the four line modes of SHDSL (also can be described as two lines to mode) is: the twisted-pair feeder that common DSL is connected in originally two ports is bundled on the port, in order to satisfy bigger transmission range, the data communication needs of high transfer rate more.
Usually, (Digital Subscriber Line AccessMultiplexer DSLAM) waits local side apparatus (can abbreviate local side as) application SHDSL technology to provide professional by the modulator-demodulator equipment such as (Modem) of its connection for the user to DSLAM.Can be called local side opposite end side apparatus by the equipment that Modem is such.
Particularly, the annexation between local side and the Modem can have multiple, has showed wherein a kind of annexation among Fig. 1.Referring to Fig. 1, Fig. 1 is the connection diagram of local side and Modem.Among Fig. 1, the local side master port of local side 110 links to each other from port with the Modem side of Modem 120, and the local side of local side 110 then links to each other with the Modem side master port of Modem 120 from port.During proper communication, local side master port, local side all are in state of activation from port and Modem side master port, Modem side from port.
Certainly, be in state of activation, need control local side master port and Modem side in advance and comprise the activation of shaking hands, training, so that local side master port and Modem side finally are in state of activation from port from the port experience in order to guarantee above-mentioned port; Also to control local side in advance and comprise the activation of shaking hands, training, so that local side finally is in state of activation from port and Modem side master port from port and Modem side master port experience.And, also need to be provided for guaranteeing the configuration information of frame synchronization in the activation.
When local side 110 will be to Modem 120 transmit frames, after the odevity frame that 110 pairs of local sides will send splits and add described configuration information in frame, the odevity frame of finishing fractionation is sent to Modem 120 via local side master port, local side from port respectively; 120 of Modem receive the odevity frame that has been split from local side 110 by the Modem side of self from port and Modem side master port, the described odevity frame that will be split according to the configuration information that is comprised in the odevity frame of receiving reconfigures again, and the frame that combines is sent to continuous user side equipment.In like manner, when by Modem 120 during to local side 110 transmit frames, the frame that is sent out also needs to experience the process of recombinant after the fractionation.
As seen, local side 110 can carry out normal data communication with Modem 120 on the basis of frame synchronization, is that Modem 120 provides business to support local side 110.
When practical application, if local side master port and the Modem side situation of wiring again after taken place between the port to go offline, local side master port and Modem side can experience activation from port so, finally are in new state of activation from shaking hands, training that is:.Though local side master port and Modem side have experienced above-mentioned activation from port, because this activation and local side are relatively independent from the activation that port and Modem side master port once experienced; Therefore, just no longer there is any relation in the configuration information of the assurance frame synchronization that is comprised in the frame that the local side master port sends after the described activation of experience with the configuration information that experiences the assurance frame synchronization that is sent before the described activation.This will cause local side master port and local side from frame that port sent (claiming that usually this situation is a step-out) no longer synchronously, and then making Modem 120 to carry out normal combination operation to frame from local side 110, the user side equipment that finally causes linking to each other with Modem 120 can't normally be accepted the business that local side 110 is provided.
If the problems referred to above have taken place, the business that local side 110 is provided then can't be recovered automatically.At present applicable unique service restoration method is: wait for the complaint untill further notice that can't normally accept business from the user, activate the local side master port of local side 110 and local side again from port by the attendant for this user again.This obviously is unfavorable for local side 110 normally for the user provides professional very much, and can seriously reduce user satisfaction.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of professional device that recovers automatically of realizing, guarantees that local side can recover this business when professional not normal automatically in that it provided, to improve user satisfaction.
Another object of the present invention is to provide a kind of professional method of recovering automatically that realizes, guarantee that local side can recover this business when professional not normal automatically in that it provided, to improve user satisfaction.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention discloses a kind of professional device that recovers automatically of realizing, this device comprises port status reading unit, detecting unit and the port controlling unit that links to each other successively;
Wherein, the port status reading unit is used to read the state of activation and the synchronous regime of its local side principal and subordinate port that connects;
Detecting unit, be used to obtain the state of activation and the synchronous regime of the local side principal and subordinate port that the port status reading unit read, and be used to the deexcitation of local side principal and subordinate port, the activation manipulation that recover professional according to the state of activation of obtaining and synchronous regime control port control unit;
The port controlling unit is used for carrying out the deexcitation of local side principal and subordinate port, activation manipulation according to the control of detecting unit.
Described local side is DSLAM DSLAM.
Further be provided with timer in the detecting unit, this timer is used for described local side principal and subordinate port deactivating operation and local side principal and subordinate port activation operation spaced apart in time.
The port controlling unit links to each other with local side opposite end side apparatus by local side principal and subordinate port, is used for cooperating with local side opposite end side apparatus finishing described local side principal and subordinate port activation and operating.
Described local side opposite end side apparatus is modulator-demodulator Modem.
This device is the device that is applied among the single pair high bit rate digital subscriber loop SHDSL.
The invention also discloses a kind of professional method of recovering automatically that realizes, this method may further comprise the steps:
A. read the state of activation and the synchronous regime of local side principal and subordinate port;
B. be used to the deexcitation of local side principal and subordinate port, the activation manipulation that recover professional according to the described state of activation that reads in the steps A and synchronous regime.
Step B comprises:
B1. judge according to described state of activation and synchronous regime whether local side principal and subordinate port all is in state of activation and is in synchronous regime, if return steps A or process ends; Otherwise, enter step B2;
B2. deexcitation local side principal and subordinate port activates local side principal and subordinate port again.
Steps A is different with the operating main body of step B, then after the steps A, before the step B, and the further state of activation and the synchronous regime of the local side principal and subordinate port that reads among the obtaining step A.
The method of obtaining described state of activation and synchronous regime is:
The state of activation and the synchronous regime that are read among the mode obtaining step A with the transmit port status inquiry command;
Perhaps, obtain in the mode that directly state of activation that read in the steps A and synchronous regime is reported.
Among the step B, the described activation manipulation that carries out at local side principal and subordinate port comprises:
Local side and local side opposite end side apparatus comprise the activation of shaking hands, training, and make local side principal and subordinate port and the local side opposite end side apparatus principal and subordinate port that connected is in state of activation; And be provided for guaranteeing the synchronous configuration information of local side principal and subordinate port frame.
The described activation of carrying out is:
Local side and local side opposite end side apparatus carry out the activation of shaking hands, training from comprising of port at the local side master port that links to each other, local side opposite end side apparatus; Also carry out at the comprise activation of shaking hands, training of the local side that links to each other from port, local side opposite end side apparatus master port.
The described deexcitation, the activation manipulation that carry out at local side principal and subordinate port are triggered by corresponding deexcitation order, activation command, then just send the activation command that is used to trigger described activation manipulation after having finished described deactivating operation.
Described local side is the device that is applied among the SHDSL.
Compared with prior art, the apparatus and method that realize professional automatic recovery provided by the present invention, all need to obtain the state of activation and the synchronous regime of local side principal and subordinate port, and be used to the deexcitation of local side principal and subordinate port, the activation manipulation that recover professional according to this state of activation and synchronous regime.As seen, apparatus of the present invention and method guarantee that all local side can recover this business when professional not normal automatically in that it provided; This obviously helps local side normally for the user provides professional, thereby can increase substantially user satisfaction.
Description of drawings
Fig. 1 is the connection diagram of local side and Modem;
Fig. 2 is the professional installation drawing that recovers automatically of the realized SHDSL of a preferred embodiment of the present invention;
Fig. 3 is the professional flow chart that recovers automatically of the realized SHDSL of a preferred embodiment of the present invention;
The state exchange schematic diagram of Fig. 4 when to be that the realization SHDSL of a preferred embodiment of the present invention is professional recover automatically.
Embodiment
Below in conjunction with drawings and the specific embodiments to the detailed description of the invention.
Provided by the present inventionly realize that the professional device that recovers automatically comprises: the port status reading unit of Xiang Lianing, detecting unit and port controlling unit successively; Wherein, the port status reading unit is used to read the state of activation and the synchronous regime of its local side principal and subordinate port that connects; Detecting unit, be used to obtain the state of activation and the synchronous regime of the local side principal and subordinate port that the port status reading unit read, and be used to the deexcitation of local side principal and subordinate port, the activation manipulation that recover professional according to the state of activation of obtaining and synchronous regime control port control unit; The port controlling unit then is used for carrying out the deexcitation of local side principal and subordinate port, activation manipulation according to the control of detecting unit.
Provided by the present inventionly realize the professional method of recovering automatically, need read the state of activation and the synchronous regime of local side principal and subordinate port, and be used to the deexcitation of local side principal and subordinate port, the activation manipulation that recover professional according to the state of activation that reads and synchronous regime.
Referring to Fig. 2, Fig. 2 is the professional installation drawing that recovers automatically of the realized SHDSL of a preferred embodiment of the present invention, and this device comprises port status reading unit 210, detecting unit 220 and the port controlling unit 230 that links to each other successively; And port status reading unit 210 also links to each other from port with the local side master port, the local side that are positioned at the local side side respectively.As logic entity, port status reading unit 210, detecting unit 220, port controlling unit 230 can be arranged in the same physical entity, or be arranged in three different physical entities; Certainly, also wherein certain two can be arranged in the same physical entity.
During practical application, port status reading unit 210 can be used prior art and read its local side master port that connects and local side state of activation and the synchronous regime from port; And, obtain to detecting unit 220 real-times local side master port that port status reading unit 210 reads and local side state of activation and synchronous regime from port.Concrete acquisition methods has multiple, as: detecting unit 220 is to port status reading unit 210 transmit port status inquiry command, and local side master port that when port status reading unit 210 is received this order self is read and local side send to detecting unit 220 from the state of activation and the synchronous regime of port; Perhaps, local side master ports that directly self read by port status reading unit 210 and local side report detecting unit 220 from the state of activation and the synchronous regime of port.
Certainly, describedly obtain operation and also can periodically carry out.
When detecting unit 220 obtains local side master port and local side from the state of activation of port and synchronous regime from port status reading unit 210, judge according to the port status that obtains whether local side principal and subordinate port all is in state of activation and is in synchronous regime, if, 220 of detecting units immediately or obtain local side master port and local side state of activation and the synchronous regime from port once more from port status reading unit 210 after waiting for a period of time and judge according to the port status that obtains whether local side principal and subordinate port all is in state of activation and is in synchronous regime ...; Otherwise, detecting unit 220 sends deexcitation local side master port orders and deexcitation local side from port command to port controlling unit 230, when detecting unit 220 sends deexcitation order at certain port or afterwards, also at this port to port controlling unit 230 transmit port activation commands, that is: detecting unit 220 also sends the order of activation local side master port to port controlling unit 230 when port controlling unit 230 sends the order of deexcitation local side master port or afterwards, and also 230 transmissions activate local side from port command to detecting unit 220 to the port controlling unit when port controlling unit 230 sends the deexcitation local sides from port command or afterwards.
Can will comprise the order of above-mentioned deexcitation local side master port, deexcitation local side from port command and activate the order of local side master port, activate local side and be referred to as the port operation order from the order that is used to recover professional of port command.
In actual applications, timer can also be set in detecting unit in advance, and determine that at detecting unit 220 local side principal and subordinate port starts this timer when all not being in state of activation as yet or not being in synchronous regime; This timer is notified detecting unit 220 to send modes such as message when overtime, detecting unit 220 judges once more when knowing timer expiry whether local side principal and subordinate port all is in state of activation and is in synchronous regime, if, 220 of detecting units immediately or obtain local side master port and local side state of activation and the synchronous regime from port once more from port status reading unit 210 after waiting for a period of time and judge according to the port status that obtains whether local side principal and subordinate port all is in state of activation and is in synchronous regime ...; Otherwise 220 of detecting units send described port operation order to port controlling unit 230.
By the above as seen, deexcitation local side master port order from detecting unit 220 can be received in port controlling unit 230, the deexcitation local side is from port command and activate the order of local side master port, activate local side from port command.
When receiving the order of deexcitation local side master port, prior art is used with the deexcitation of local side master port in port controlling unit 230, and concrete operations are generally: the communications status attribute of local side master port is set to deactivation status; When receiving the deexcitation local side from port command, from the port deexcitation, concrete operations are generally: local side is set to deactivation status from the communications status attribute of port to port controlling unit 230 application prior aries with local side.
When receiving the order of activation local side master port, port controlling unit 230 is used prior art the local side master port is activated, concrete operations are generally: port controlling unit 230 carries out the activation of shaking hands, training from comprising of port at local side master port, Modem side by local side master port, the central processing unit (CPU) of Modem side from port and Modem that links to each other, and makes local side master port and Modem side finally be in state of activation from port.When receiving the activation local side from port command, port controlling unit 230 use prior aries with local side from port activation, concrete operations are generally: port controlling unit 230 is undertaken at the comprise activation of shaking hands, training of local side from port, Modem side master port by the CPU of local side from port, Modem side master port and Modem that links to each other, and makes local side finally be in state of activation from port and Modem side master port.
Certainly, in carrying out above-mentioned process with local side principal and subordinate port activation, port controlling unit 230 also needs to use prior art and is provided for guaranteeing the synchronous configuration information of local side principal and subordinate port frame, this configuration information can be added in the frame that the follow-up quilt that is sent split to guarantee local side principal and subordinate port; When making the frame that Modem receives that the quilt from local side principal and subordinate port splits, can reconfigure according to the frame that the configuration information that is comprised in the frame will be split, so that the frame that combines is sent to continuous user side equipment.
In fact, no matter whether be provided with described timer, detecting unit 220 can send described port operation order at the synchronization or the different moment.When sending described port operation order constantly in difference, detecting unit 220 at first sends the order of deexcitation local side master port usually, sends the deexcitation local side again from port command; After this, can detecting unit 220 be waited for a period of time, send by detecting unit 220 then and activate the order of local side master port, send again afterwards and activate local side from port command by modes such as timer are set.
Why sending the order of activation local side master port to port controlling unit 230, activating local side will wait for a period of time before port command, be because port controlling unit 230 is being received from the deexcitation local side master port order of detecting unit 220 and deexcitation local side after port command, expending some times is used to carry out corresponding local side master port deactivating operation and local side from the port deactivating operation, if in this deactivating operation process, send the order of activation local side master port to port controlling unit 230, activate local side from port command, 230 of port controlling unit might cause deexcitation or activation manipulation failure because of receiving too much order at short notice.Therefore, preferably before port command, waiting for a period of time, with the deactivating operation that guarantees that port controlling unit 230 can during this period of time be finished at local side principal and subordinate port to the 230 transmission activation local side master port orders of port controlling unit, activation local side.
As seen from Figure 2, if what local side provided is professional not normal, so after finishing described local side principal and subordinate port deactivating operation and local side principal and subordinate port activation operation, Modem can normally receive, make up the frame from local side, and the frame of finishing combination can be sent to the user side equipment that links to each other with Modem; Therefore, use the user of this user side equipment just can accept business naturally from local side, that is: the device of being made up of port status reading unit 210, detecting unit 220 and port controlling unit 230 can guarantee that local side can recover this business when professional not normal automatically in that it provided.This obviously helps local side normally for the user provides professional, thereby can increase substantially user satisfaction.
If the operation that device shown in Figure 2 can be carried out is represented with flow process, then as shown in Figure 3.Fig. 3 is the professional flow chart that recovers automatically of the realized SHDSL of a preferred embodiment of the present invention, and this flow process mainly may further comprise the steps:
Step 310: the activation, the synchronous regime that detect local side principal and subordinate port.
Step 320: judge according to activation, the synchronous regime of detected local side principal and subordinate port whether local side principal and subordinate port all is in state of activation and is in synchronous regime, if, process ends or return step 310 then; Otherwise, enter step 330.
In actual applications, when local side principal and subordinate port all is in unactivated state, also can process ends or return step 310.
Step 330: deexcitation local side principal and subordinate port, and activate local side principal and subordinate port once more.To concrete port activate, during deactivating operation according to time sequencing can be with reference to the corresponding description among Fig. 2.
In fact, described in Fig. 2, Fig. 3 to concrete port activate, during deactivating operation according to time sequencing, be to realize, and this state machine software is arranged in the detecting unit usually by state machine software commonly used at present is set.
Particularly, the operation relevant with time sequencing that can realize of described state machine software as shown in Figure 4; More precisely, Fig. 4 is the schematic diagram that state machine software control detecting unit is realized the operating state conversion.Below, the function that the angle of changing from the detecting unit operating state can realize state machine software is described.
Among Fig. 4, detecting unit at first can be in initial condition, and judges whether local side principal and subordinate port all is in state of activation.When definite local side principal and subordinate port all was in state of activation, detecting unit can remain on initial condition; Whether when having only a port to be in state of activation in definite local side principal and subordinate port, detecting unit then is transformed into state A, timer and Rule of judgment X are set satisfy.Described condition X is: local side principal and subordinate port all is in state of activation and is in synchronous regime.
In general, when condition Y satisfied, detecting unit can remain on initial condition usually.Described condition Y is: present state of activation of local side principal and subordinate port or unactivated state are identical.
When being in state A, when the counting of timer during less than N, detecting unit remains on state A; Certainly, if at this moment detecting unit determines that condition X is satisfied, then returns to initial condition.When the counting of timer arrived N, whether detecting unit Rule of judgment X satisfied, if satisfy, detecting unit then returns to initial condition; Otherwise detecting unit is transformed into state B.
When being in state B, whether detecting unit Rule of judgment X satisfies, if satisfy, detecting unit then returns to initial condition; Otherwise detecting unit sends the order of described deexcitation local side master port, is carried out with the operation that guarantees deexcitation local side master port, and is transformed into state C.
When being in state C, detecting unit sends described deexcitation local side from port command, is carried out from the operation of port with assurance deexcitation local side, and is transformed into state D.
When being in state D, timer is set; When the counting of timer during less than M, detecting unit remains on state D; When the counting of timer arrived M, detecting unit sent the order of described activation local side master port, was carried out with the operation that guarantees activation local side master port, and was transformed into state E.
When being in state E, detecting unit sends described activation local side from port command, activates local side with assurance and is carried out from the operation of port, and be transformed into initial condition.
So far, state machine software has been finished with regard to the control detection unit and can have been made the professional whole process of recovering automatically of SHDSL.
The effect that described state D is set is: waited for a period of time before port command at the order of the described activation local side master port of transmission, activation local side, during this period of time can finish smoothly at the deactivating operation of local side principal and subordinate port with assurance.Have, the timer described in state A and state D can be same timer again, also can be two different timers.Have again, above-mentioned M, N be respectively can be identical or different time span.
Need to prove that the present invention not only is confined to the SHDSL technical field; In DSL in addition outside other technical field in, at other communication technology like the SHDSL technology type, also can use apparatus of the present invention and method.
By the above as can be seen, provided by the present inventionly realize the professional apparatus and method of recovering automatically, guarantee that all local side can recover this business when professional not normal automatically in that it provided; This obviously helps local side normally for the user provides professional, thereby can increase substantially user satisfaction.
Claims (14)
1, a kind of device of realizing professional automatic recovery is characterized in that, this device comprises port status reading unit, detecting unit and the port controlling unit that links to each other successively;
Wherein, the port status reading unit is used to read the state of activation and the synchronous regime of its local side principal and subordinate port that connects;
Detecting unit, be used to obtain the state of activation and the synchronous regime of the local side principal and subordinate port that the port status reading unit read, and be used to the deexcitation of local side principal and subordinate port, the activation manipulation that recover professional according to the state of activation of obtaining and synchronous regime control port control unit;
The port controlling unit is used for carrying out the deexcitation of local side principal and subordinate port, activation manipulation according to the control of detecting unit.
2, device as claimed in claim 1 is characterized in that, described local side is DSLAM DSLAM.
3, device as claimed in claim 1 is characterized in that, further is provided with timer in the detecting unit, and this timer is used for described local side principal and subordinate port deactivating operation and local side principal and subordinate port activation operation spaced apart in time.
As each described device of claim 1 to 3, it is characterized in that 4, the port controlling unit links to each other with local side opposite end side apparatus by local side principal and subordinate port, be used for cooperating and finish described local side principal and subordinate port activation and operate with local side opposite end side apparatus.
5, device as claimed in claim 4 is characterized in that, described local side opposite end side apparatus is modulator-demodulator Modem.
6, device as claimed in claim 1 is characterized in that, this device is the device that is applied among the single pair high bit rate digital subscriber loop SHDSL.
7, a kind of method that realizes professional automatic recovery is characterized in that this method may further comprise the steps:
A. read the state of activation and the synchronous regime of local side principal and subordinate port;
B. be used to the deexcitation of local side principal and subordinate port, the activation manipulation that recover professional according to the described state of activation that reads in the steps A and synchronous regime.
8, method as claimed in claim 7 is characterized in that, step B comprises:
B1. judge according to described state of activation and synchronous regime whether local side principal and subordinate port all is in state of activation and is in synchronous regime, if return steps A or process ends; Otherwise, enter step B2;
B2. deexcitation local side principal and subordinate port activates local side principal and subordinate port again.
As claim 7 or 8 described methods, it is characterized in that 9, steps A is different with the operating main body of step B, then after the steps A, before the step B, the further state of activation and the synchronous regime of the local side principal and subordinate port that reads among the obtaining step A.
10, method as claimed in claim 9 is characterized in that, the method for obtaining described state of activation and synchronous regime is:
The state of activation and the synchronous regime that are read among the mode obtaining step A with the transmit port status inquiry command;
Perhaps, obtain in the mode that directly state of activation that read in the steps A and synchronous regime is reported.
As claim 7 or 8 described methods, it is characterized in that 11, among the step B, the described activation manipulation that carries out at local side principal and subordinate port comprises:
Local side and local side opposite end side apparatus comprise the activation of shaking hands, training, and make local side principal and subordinate port and the local side opposite end side apparatus principal and subordinate port that connected is in state of activation; And be provided for guaranteeing the synchronous configuration information of local side principal and subordinate port frame.
12, method as claimed in claim 11 is characterized in that, the described activation of carrying out is:
Local side and local side opposite end side apparatus carry out the activation of shaking hands, training from comprising of port at the local side master port that links to each other, local side opposite end side apparatus; Also carry out at the comprise activation of shaking hands, training of the local side that links to each other from port, local side opposite end side apparatus master port.
13, as claim 7 or 8 described methods, it is characterized in that, the described deexcitation, the activation manipulation that carry out at local side principal and subordinate port are triggered by corresponding deexcitation order, activation command, then just send the activation command that is used to trigger described activation manipulation after having finished described deactivating operation.
14, method as claimed in claim 7 is characterized in that, described local side is the device that is applied among the SHDSL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100805167A CN100479382C (en) | 2006-05-11 | 2006-05-11 | Device and method for implementing service automatic recovery |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100805167A CN100479382C (en) | 2006-05-11 | 2006-05-11 | Device and method for implementing service automatic recovery |
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| CN101047553A true CN101047553A (en) | 2007-10-03 |
| CN100479382C CN100479382C (en) | 2009-04-15 |
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| CNB2006100805167A Expired - Fee Related CN100479382C (en) | 2006-05-11 | 2006-05-11 | Device and method for implementing service automatic recovery |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103248510A (en) * | 2012-02-14 | 2013-08-14 | 中兴通讯股份有限公司 | Method and device for automatic recovery and reactivation of business |
| CN103312429A (en) * | 2013-06-08 | 2013-09-18 | 杭州华三通信技术有限公司 | Time synchronization method and time synchronization device |
| CN105049229A (en) * | 2015-06-15 | 2015-11-11 | 上海斐讯数据通信技术有限公司 | Method for improving stability of broadband modem system and system thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4715044A (en) * | 1986-07-03 | 1987-12-22 | American Telephone & Telegraph Company | Automatic synchronous/asynchronous modem |
| CN1564571A (en) * | 2004-04-16 | 2005-01-12 | 港湾网络有限公司 | Method of avoiding unable synchronous port of ADSL |
| CN100362776C (en) * | 2004-09-24 | 2008-01-16 | 华为技术有限公司 | Method of proceeding resynchronization of interface link |
-
2006
- 2006-05-11 CN CNB2006100805167A patent/CN100479382C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103248510A (en) * | 2012-02-14 | 2013-08-14 | 中兴通讯股份有限公司 | Method and device for automatic recovery and reactivation of business |
| CN103248510B (en) * | 2012-02-14 | 2017-11-10 | 中兴通讯股份有限公司 | The method and apparatus that a kind of business recovers reactivation automatically |
| CN103312429A (en) * | 2013-06-08 | 2013-09-18 | 杭州华三通信技术有限公司 | Time synchronization method and time synchronization device |
| CN103312429B (en) * | 2013-06-08 | 2015-11-25 | 杭州华三通信技术有限公司 | A kind of method for synchronizing time and device |
| CN105049229A (en) * | 2015-06-15 | 2015-11-11 | 上海斐讯数据通信技术有限公司 | Method for improving stability of broadband modem system and system thereof |
| CN105049229B (en) * | 2015-06-15 | 2018-07-31 | 上海斐讯数据通信技术有限公司 | Improve the method and its system of broadband cat system stability |
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| Publication number | Publication date |
|---|---|
| CN100479382C (en) | 2009-04-15 |
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