CN1801731A - Method for setting signaling channel bandwidth between central module and remote module - Google Patents
Method for setting signaling channel bandwidth between central module and remote module Download PDFInfo
- Publication number
- CN1801731A CN1801731A CN 200410091978 CN200410091978A CN1801731A CN 1801731 A CN1801731 A CN 1801731A CN 200410091978 CN200410091978 CN 200410091978 CN 200410091978 A CN200410091978 A CN 200410091978A CN 1801731 A CN1801731 A CN 1801731A
- Authority
- CN
- China
- Prior art keywords
- bandwidth
- module
- remote end
- end module
- center module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The method to set signaling channel bandwidth between center module and remote module comprises: connecting the center module of exchange or media gateway and remote module with TDM signaling channel; after starting, remote module uses a given default bandwidth to communicate with center module while the latter waiting for communication with same content; after finishing initial communication, remote module requires bandwidth parameters to center module while the latter sending the real bandwidth set by user to former; once obtaining acknowledge, both switches into the set bandwidth to connect again. This invention overcomes lacks in prior art, reduces cost, and convenient to set bandwidth and modify error.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method that the center module of communication equipment and the time division multiplexing signalling path bandwidth between the remote end module are provided with.
Background technology
In TDM (time division multiplexing) switch or the media gateway among the NGN (next generation network) in PSTN (public phone exchanges network), the notion that has remote end module, switch or media gateway are divided into center module and remote end module, connect continuous between the two by TDM.By transmission equipment, both can be or not same geographical position, and remote end module can be placed into the place nearer apart from the end user, is convenient to laying of subscriber's line; Center module can be placed on central machine room, safeguards unified management nearby.
Owing to need control and unify maintenance management to remote end module, during the TDM between remote end module and center module connects usually, mark off some time slots and be used for signaling link, on signaling link, move control messages and maintenance management message.Because the scale of remote end module and traffic carrying capacity is different, the also corresponding difference of the bandwidth of required signaling link, thus requirement that the signaling link bandwidth is provided with has been proposed.
Because the TDM connection characteristics will obtain more bandwidth and normally a plurality of 64K TDM time slots be bound, form the passage of a N * 64K.For this reason, with remote end module identical bandwidth must be set in center module, otherwise between the two can't communication.For example, if the bandwidth of remote end module setting is 2 * 64K passage, be 3 * 64K passage and center module is provided with bandwidth, obviously both can't communication.And this bandwidth can't be provided with by signalling path self usually, because for remote end module, if do not obtain correct communication bandwidth, then can't use signalling path to follow center module to carry out communication; And have only signalling path to use, with center module can communication after, could issue setting to remote end module.
Prior art generally is provided with by the width of toggle switch to signaling link.Toggle switch is set on remote end module, and remote end module is read the numerical value that is provided with on the toggle switch after starting, and determines the communication bandwidth in view of the above, carries out communication with center module.Also need the communication bandwidth is provided with in center module.
The shortcoming of prior art need to be extra hardware device on remote end module, and need mistake occur if be provided with at the enterprising line operate of remote end module, must go to remote location, could revise.On center module, also to be provided with, and will be consistent with remote end module.
Though prior art also can use other modes to be provided with on remote end module, and serial ports and Nonvolatile memory for example are provided on remote end module, by serial ports bandwidth parameter is write Nonvolatile memory.But there is the extra hardware device of above-mentioned needs equally, cost height, the shortcoming of operation and correction trouble.
Summary of the invention
Technical problem to be solved by this invention is: overcoming needs additional hardware when prior art is provided with the signaling link bandwidth between center module and the remote end module, the cost height, and the shortcoming of the operation and the trouble that corrects mistakes, a kind of method that signalling path bandwidth between center module and remote end module is provided with is provided, thereby reduces cost, be provided with easily and revise.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
This method that signalling path bandwidth between center module and remote end module is provided with may further comprise the steps:
Link to each other by the time division multiplexing signalling path between the center module of communication equipment and the remote end module, after remote end module starts, use a default bandwidth that sets in advance to carry out communication with center module, center module also uses the identical default bandwidth that sets in advance to wait for that remote end module is with its communication; After remote end module and center module are finished first communication by default bandwidth, remote end module on this bandwidth to center module bandwidth on demand parameter, center module is handed down to remote end module with the actual bandwidth that the user is provided with, after obtaining to confirm, both sides switch to this bandwidth are set, and restart to attempt contact.
Described communication equipment can be switch or media gateway.When the actual bandwidth that center module is provided with the user is handed down to remote end module, center module is carried out cyclic redundancy check (CRC) to message itself and is calculated, when remote end module receives message message is carried out cyclic redundancy check (CRC), if verification by remote end module confirm that the message of oneself receiving is correct; Remote end module sends acknowledge message to center module after receiving bandwidth parameter, if the bandwidth parameter in the acknowledge message is identical with the bandwidth numerical value of configuration, then center module affirmation remote end module has been received correct bandwidth parameter, thereby guarantees that actual bandwidth parameter correctly is delivered to remote end module from center module.
Message is all undertaken by reliable link layer host-host protocol, guarantees that bandwidth parameter message and acknowledge message can arrive the other side.The described default bandwidth that sets in advance can adopt minimum bandwidth, i.e. 64K time division multiplexing time slot.If remote end module interrupts with the contact of center module, perhaps use bandwidth is set sets up contact all the time of issuing, then remote end module can return back to described default bandwidth, restart to center module bandwidth on demand parameter, center module also return back to described default bandwidth, waits for the bandwidth request of remote end module.
Beneficial effect of the present invention is: the invention provides a kind of method that the center module of communication equipment and the signalling path bandwidth between remote end module are provided with, overcome and needed additional hardware when prior art is provided with the signaling link bandwidth between center module and the remote end module, cost height, and the shortcoming of the operation and the trouble that corrects mistakes.Utilize the present invention, on remote end module, need not extra hardware device; Only need on center module, be provided with, do not need to go the remote end module direct control to remote location, need not also to worry that remote end module and center module are provided with the inconsistent problem of parameter, can reduce cost, can realize setting easily to the signalling path bandwidth, and to mistake being set or unusually also can revising easily.
Embodiment
According to embodiment the present invention is described in further detail below:
The present invention is provided with problem by the bandwidth that the bandwidth negotiation method solves remote end module.After the remote end module of communication equipment (as switch or media gateway) starts, always be to use a default bandwidth that sets in advance (as minimum bandwidth, i.e. 64K TDM time slot) to carry out communication with center module.Center module also always is to use an identical default bandwidth that sets in advance (as minimum bandwidth, i.e. 64K TDM time slot), waits for that remote end module is with its communication.
In case remote end module and center module are finished first communication by the minimum bandwidth of acquiescence, remote end module just can be to center module bandwidth on demand parameter on this bandwidth.Center module is handed down to remote end module with the actual bandwidth that the user is provided with, and after obtaining to confirm, both sides switch to this bandwidth is set, and restart to attempt contact.Like this, utilize the present invention, on remote end module, need not extra hardware device; Only need on center module, be provided with, not need to go the remote end module direct control, need not also to worry that remote end module and center module are provided with the inconsistent problem of parameter to remote location.
General, remote end module will send communication message after switching on the 64K channel width repeatedly on this channel width.As long as after center module also switches to the 64K channel width, because the message of remote end module sends repeatedly, center module can be received communication message, is unlikely to the problem that exists both sides to stagger in time like this.
In view of the channel width parameter be both sides next step can normal communication the basis, must guarantee that this parameter can correctly be delivered to remote end module from center module.This just requires (1) remote end module to confirm oneself to receive proper messages; (2) center module affirmation remote end module has been received proper messages, and both sides just can carry out next step operation like this, promptly all switch to the actual disposition bandwidth and carry out communication.Reach above-mentioned requirements, the specific implementation method is: when (1) sends message message itself is carried out CRC (cyclic redundancy check (CRC)) and calculate, when receiving message message is carried out CRC check,, in transmission course, do not damage if verification is received proper messages by just thinking.(2) remote end module sends acknowledge message after receiving bandwidth parameter, and center module is waited for the affirmation message of remote end module, if the bandwidth parameter in the acknowledge message is identical with the numerical value of configuration, confirms that then remote end module received correct bandwidth parameter.(3) above message is all passed through reliable link layer host-host protocol, and for example the LAPD agreement (link access protocol on the D channel) of ITU-T definition is carried out, and guarantees that bandwidth parameter message and acknowledge message can arrive the other side, also can obtain notice if can not arrive.
As a safeguard measure, in case remote end module interrupts with the contact of center module, perhaps use bandwidth is set can't sets up contact all the time of issuing, remote end module will be automatically retracted back into default bandwidth, restart the bandwidth on demand parameter; Center module also return back to default bandwidth, waits for the bandwidth request of remote end module.Like this,, needn't go to revise to remote location, and, restart the bandwidth on demand parameter, revise easily by being automatically retracted back into default bandwidth if be provided with when mistake or abnormal conditions occurring.
Certainly, default bandwidth also can set in advance and be other bandwidth, those skilled in the art do not break away from essence of the present invention and spirit, can there be the various deformation scheme to realize the present invention, the above only is the preferable feasible embodiment of the present invention, be not so limit to interest field of the present invention, the equivalent structure that all utilizations specification of the present invention and accompanying drawing content are done changes, and all is contained within the interest field of the present invention.
Claims (6)
1, a kind of method that signalling path bandwidth between center module and remote end module is provided with is characterized in that, may further comprise the steps:
Link to each other by the time division multiplexing signalling path between the center module of communication equipment and the remote end module, after remote end module starts, use a default bandwidth that sets in advance to carry out communication with center module, center module also uses the identical default bandwidth that sets in advance to wait for that remote end module is with its communication;
After remote end module and center module are finished first communication by default bandwidth, remote end module on this bandwidth to center module bandwidth on demand parameter, center module is handed down to remote end module with the actual bandwidth that the user is provided with, after obtaining to confirm, both sides switch to this bandwidth are set, and restart to attempt contact.
2, the method that the signalling path bandwidth between center module and remote end module is provided with according to claim 1, it is characterized in that: described communication equipment is switch or media gateway.
3, the method that the signalling path bandwidth between center module and remote end module is provided with according to claim 1 and 2 is characterized in that: the described default bandwidth that sets in advance adopts minimum bandwidth, i.e. 64K time division multiplexing time slot.
4, the method that the signalling path bandwidth between center module and remote end module is provided with according to claim 3, it is characterized in that: when the actual bandwidth that center module is provided with the user is handed down to remote end module, center module is carried out cyclic redundancy check (CRC) to message itself and is calculated, when remote end module receives message message is carried out cyclic redundancy check (CRC), if verification by remote end module confirm that the message of oneself receiving is correct; Remote end module sends acknowledge message to center module after receiving bandwidth parameter, if the bandwidth parameter in the acknowledge message is identical with the bandwidth numerical value of configuration, then center module affirmation remote end module has been received correct bandwidth parameter, thereby guarantees that actual bandwidth parameter correctly is delivered to remote end module from center module.
5, the method that the signalling path bandwidth between center module and remote end module is provided with according to claim 4, it is characterized in that: described message is all undertaken by reliable link layer host-host protocol, guarantees that bandwidth parameter message and acknowledge message can arrive the other side.
6, the method that the signalling path bandwidth between center module and remote end module is provided with according to claim 3, it is characterized in that: if remote end module interrupts with the contact of center module, perhaps use bandwidth is set sets up contact all the time of issuing, then remote end module return back to described default bandwidth, restart to center module bandwidth on demand parameter, center module also return back to described default bandwidth, waits for the bandwidth request of remote end module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410091978XA CN100407640C (en) | 2004-12-31 | 2004-12-31 | Method for setting signaling channel bandwidth between central module and remote module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410091978XA CN100407640C (en) | 2004-12-31 | 2004-12-31 | Method for setting signaling channel bandwidth between central module and remote module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1801731A true CN1801731A (en) | 2006-07-12 |
| CN100407640C CN100407640C (en) | 2008-07-30 |
Family
ID=36811509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200410091978XA Expired - Fee Related CN100407640C (en) | 2004-12-31 | 2004-12-31 | Method for setting signaling channel bandwidth between central module and remote module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100407640C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009092221A1 (en) * | 2007-12-28 | 2009-07-30 | Huawei Technologies Co., Ltd. | A method, media gateway and media gateway controller for adjusting signal transmission bandwidth |
| CN102318289A (en) * | 2011-07-29 | 2012-01-11 | 华为技术有限公司 | Bandwidth adjusting method, bus controller and signal converter |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6016311A (en) * | 1997-11-19 | 2000-01-18 | Ensemble Communications, Inc. | Adaptive time division duplexing method and apparatus for dynamic bandwidth allocation within a wireless communication system |
| CA2437476A1 (en) * | 2001-02-06 | 2002-08-15 | Harris Corporation | System and method for demodulator state controller |
| CN1302644C (en) * | 2003-06-03 | 2007-02-28 | 华为技术有限公司 | Method for building permanent virtual connection |
-
2004
- 2004-12-31 CN CN200410091978XA patent/CN100407640C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009092221A1 (en) * | 2007-12-28 | 2009-07-30 | Huawei Technologies Co., Ltd. | A method, media gateway and media gateway controller for adjusting signal transmission bandwidth |
| CN101471848B (en) * | 2007-12-28 | 2012-03-21 | 华为技术有限公司 | Method for adjusting signal transmission bandwidth, medium gateway and medium gateway controller |
| RU2461971C2 (en) * | 2007-12-28 | 2012-09-20 | Хуавэй Текнолоджиз Ко., Лтд. | Method for adjusting signal delivery bandwidth, media gateway and media gateway controller |
| US8358581B2 (en) | 2007-12-28 | 2013-01-22 | Huawei Technologies Co., Ltd. | Method for adjusting signal delivery bandwidth, media gateway and media gateway controller |
| CN102318289A (en) * | 2011-07-29 | 2012-01-11 | 华为技术有限公司 | Bandwidth adjusting method, bus controller and signal converter |
| WO2012109857A1 (en) * | 2011-07-29 | 2012-08-23 | 华为技术有限公司 | Bandwidth adjustment method, bus controller and signal converter |
| CN102318289B (en) * | 2011-07-29 | 2014-12-10 | 华为技术有限公司 | Bandwidth adjusting method, bus controller and signal converter |
| US9450886B2 (en) | 2011-07-29 | 2016-09-20 | Huawei Technologies Co., Ltd. | Bandwidth adjustment method, bus controller, and signal convertor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100407640C (en) | 2008-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100463538C (en) | Method and system for improving reliability of soft switch using off-site backup | |
| EP1798993B1 (en) | Remote access communication system and control method thereof | |
| US6424700B1 (en) | Network based distributed PBX with connection loss survival features | |
| KR100476455B1 (en) | Apparatus for N:1 Redundancy of voice processing unit in media gateway system and method thereof | |
| CN1801731A (en) | Method for setting signaling channel bandwidth between central module and remote module | |
| CN1192642C (en) | Method for updating subscriber-related data in telecommunication network | |
| WO2016106520A1 (en) | Method, terminal and system for transmitting information in optical network | |
| JP3544287B2 (en) | Setting up a flexible rate interface (FRI) link to recover a channel from a failed communication link | |
| EP0835038B1 (en) | ISDN BRI link restoration without loss of calls | |
| JP2001186165A (en) | Information communication system and connection method for call controller | |
| AU741494B2 (en) | Procedure for the switching of data traffic in a data communication system | |
| AU741495B2 (en) | Procedure for the switching of data traffic in a data communication system | |
| KR101043139B1 (en) | Method and system for rerouting at detecting network impediment on Next Generation Network | |
| JP3624851B2 (en) | Remote switching system switching method and switching system | |
| CN100353798C (en) | Method for positoning call fault | |
| KR100426476B1 (en) | C-Channel Management of V5.2 Protocol | |
| KR100385218B1 (en) | System and Method of Processing Origination Call | |
| CN100589508C (en) | A kind of method that stationary tone is provided in access device | |
| US7002991B1 (en) | Method and apparatus for provisioning distribution channels in a communications network | |
| KR100219222B1 (en) | Method for processing primitives in gcr layer of isdn uni | |
| KR20040072003A (en) | local exchange for service of V5.2 protocol and method variant information management | |
| KR100219224B1 (en) | Method for processing primitives in layer 3 of isdn uni | |
| EP2141859B1 (en) | Shutting down a media gateway controller | |
| KR100237473B1 (en) | Method of establishing packet pvc's in n-isdn | |
| CN1997018B (en) | A device and method supporting flexible connection of the non-standard users of the protocols for different layers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080730 Termination date: 20121231 |