CN100514944C - Access media gateway and its service processing method - Google Patents
Access media gateway and its service processing method Download PDFInfo
- Publication number
- CN100514944C CN100514944C CNB2004100862813A CN200410086281A CN100514944C CN 100514944 C CN100514944 C CN 100514944C CN B2004100862813 A CNB2004100862813 A CN B2004100862813A CN 200410086281 A CN200410086281 A CN 200410086281A CN 100514944 C CN100514944 C CN 100514944C
- Authority
- CN
- China
- Prior art keywords
- subscriber
- relaying
- tdm
- time slot
- line termination
- 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.)
- Expired - Fee Related
Links
- 238000003672 processing method Methods 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract description 25
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Images
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
This invention relates to an access media GW and its service process method including; separating the user circuit ending device from the code-decode and packet process device by TDM relay, so that they can be at the different geographical positions to meet the needs of network reform, such as: a businessman constructs user access devices at stops having the IP access ability near the user, yet it does not want to reform the access devices to transform the phone or data loaded on the user circuit to IP data flow and users at these stops can be migrated to the NGN network by adding code-decode transfer and packet process devices with this invented access media GW.
Description
Technical field
The present invention relates to network communications technology field, relate in particular to a kind of access media gateway and method for processing business thereof.
Background technology
In NGN (next generation network) network, media gateway and Media Gateway Controller separated structures have been adopted, wherein access media gateway is under the control of Media Gateway Controller, finish the access of PTSN/ISDN (public switched telephone network/integrated services digital network) user, on the basis of IP bearer network, provide with professional like the PSTN network class to IP (Internet protocol) network.The invention provides a kind of novel access media gateway implementation method, adopt center module to add the mode that inserts module, realize the function of access media gateway in the NGN network.
Device architecture as shown in Figure 1 for common AG (medium IAD), at side termination subscriber's line (comprising ordinary telephone wiring and isdn line etc.), after data carried by data on the subscriber's line and voice flow process encoding and decoding conversion and packetization process, obtain the IP traffic of compressed format (as G.723/G.726/G.729) or unpacked format (as G.711) at opposite side, transmit by the IP bearer network, arrive the other side of communication.
Because subscriber's line is not to use always, usually by at subscriber's line to having a convergence encoding and decoding conversion and the packet handling facilities, promptly encoding and decoding conversion and packet handling facilities can be shared by a plurality of subscriber's line timesharing, effectively to utilize Internet resources, to reduce networking cost.
At present, subscriber's line termination equipment is in the same physical equipment with encoding and decoding conversion and packet handling facilities, and this structure can satisfy most user's access demand, in fact also is present modal IAD version.
But the construction of NGN network is a progressive process, and a lot of occasions need be transformed existing network, utilize existing device, the investment of protection operator.Website does not have the IP network connectedness at subscriber's line termination equipment place, or does not want subscriber's line termination equipment is transformed, and when making it have encoding and decoding conversion and packet transaction ability, present this access media gateway can not satisfy this requirement.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the purpose of this invention is to provide a kind of access media gateway and method for processing business thereof, to reduce operator carries out upgrading to network cost.
The objective of the invention is to be achieved through the following technical solutions:
The invention provides a kind of access media gateway, comprising:
Access module: link to each other with user terminal by subscriber's line, be used to provide the termination function of subscriber's line, and link to each other with center module by the time division multiplexing tdm relaying;
Center module: link to each other with described access module by described TDM relaying, be used to provide encoding and decoding conversion and packet-processing function, and described access module is carried out control and management, for subscriber's line distributes the relaying time slot by the dedicated time slot in the described TDM relaying; Connect corresponding relation with subscriber's line termination equipment according to the TDM relaying of preserving, High level data link control HDLC, and the connection state information that is connected with HDLC of corresponding TDM relaying; Determine according to the connection state information that the TDM relaying of preserving is connected with HDLC whether the respective user line termination equipment is available.
Described access module is a subscriber's line termination equipment, and described center module is encoding and decoding conversion and packet handling facilities.
Described trunk is direct-connected physical link or the connection line by transmission equipment.
Described subscriber's line termination equipment is the remote subscriber frame equipment of digital SPC exchange or the optical network unit ONU equipment of V5 Access Network.
Described access module is one or more.
The present invention also provides a kind of method for processing business based on above-mentioned access media gateway, comprising: access module sends business information by the TDM relaying to center module; Described center module receives the service message that access module is sent by middle TDM relaying, and carries out encoding and decoding conversion and packet transaction, also by the dedicated time slot in the described TDM relaying described access module is carried out control and management, for subscriber's line distributes the relaying time slot;
Described method further comprises: connect corresponding relation with subscriber's line termination equipment according to the TDM relaying of preserving, High level data link control HDLC, and the connection state information that is connected with HDLC of corresponding TDM relaying; Determine according to the connection state information that the TDM relaying of preserving is connected with HDLC whether the respective user line termination equipment is available.
Described method further comprises:
A, subscriber's line termination equipment send business information by the TDM relaying to described center module;
B, described center module receive the service message that subscriber's line termination equipment is sent by the TDM relaying, and carry out encoding and decoding conversion and packet transaction, also subscriber's line termination equipment is carried out control and management by the TDM relaying, also subscriber's line termination equipment is carried out control and management, for subscriber's line distributes the relaying time slot by the dedicated time slot in the described TDM relaying.
Described steps A comprises:
According to the TDM relaying Time Slot Occupancy situation information of preserving is the corresponding available time slot of subscriber's line termination devices allocation;
Subscriber's line termination equipment sends information by distributed time slot in the TDM relaying to described center module.
The method for processing business of described access media gateway also comprises:
Describedly by the dedicated time slot in the described TDM relaying described subscriber's line termination equipment is carried out control and management and comprises:
Realize subscriber's line termination equipment being carried out control and management by High level data link control HDLC by the dedicated time slot in the TDM relaying.
As seen from the above technical solution provided by the invention, the present invention separates with encoding and decoding and packet handling facilities by the subscriber's line termination equipment of TDM relaying with access media gateway, therefore, under some occasion, the present invention can the fine satisfied network rebuilding requirement of satisfying operator.For example, operator near user's web construction customer access equipment, but when the network rebuilding is become the NGN network, do not wish these websites are transformed, make it can insert IP network; Perhaps these websites have had the IP access capability, but operator does not wish customer access equipment is transformed, and make it the voice or data transaction of carrying on the subscriber's line can be become IP traffic.At this moment, if use access media gateway provided by the invention, then as long as simply at central machine room to transforming or newly-increased central apparatus, just the user of these websites can be moved in the NGN network, effectively reduce the cost of the network rebuilding.
Description of drawings
Fig. 1 is the structural representation of existing access media gateway;
Fig. 2 is the structural representation of access media gateway provided by the invention;
Fig. 3 is the networking structure schematic diagram that utilizes access media gateway provided by the invention.
Embodiment
Main feature of the present invention is by TDM (time division multiplexing) relaying the subscriber's line equipment that terminates to be separated with encoding and decoding and packet handling facilities, thereby makes it can be in different geographical position, to satisfy the network rebuilding requirement under some occasion.
The present invention at first provides a kind of access media gateway, as shown in Figures 2 and 3, described access media gateway is made up of center module and access module, in the NGN network, except that setting up a center module, position and the distribution that can look PSTN (public switch telephone network) user provide one or more access module.
Encoding and decoding conversion and the packet handling facilities of described center module for encoding and decoding conversion and packet-processing function are provided; Described access module is for providing the subscriber's line termination equipment of subscriber's line termination function.Usually, in the transformation process of network, described center module is the equipment that need increase newly in network, and access module can be utilized existing subscriber's line termination equipment; Common subscriber's line termination equipment comprises the remote subscriber frame equipment of digital SPC exchange, and the ONU of V5 Access Network (optical network unit) equipment, or the like.
Among the present invention, described access module converges to the TDM relaying with subscriber's line, is connected to center module by the TDM trunk, and center module is connected to the TDM relaying on encoding and decoding conversion and the packet-processing function again; The concrete connected mode of TDM trunk can be direct-connected physical link or pass through the transmission equipment connection line; Since the existence of TDM trunk, thereby the geographical position of center module and access module can be different, center module can be placed on central machine room, and access module can be placed on the place near the user.
The present invention also provides a kind of method for processing business of access media gateway, will be elaborated to described method below.
On access module, because subscribers feeder is not to use always, so from subscribers feeder to the TDM relaying convergence can be arranged, promptly a TDM relaying can be a plurality of subscribers feeder time-sharing multiplexs; The existence of described convergence can reduce center module to the TDM relaying between the access module, reduces the requirement to transmission equipment.Present existing subscriber's line termination equipment, the ONU equipment that comprises remote subscriber frame and V5 Access Network, usually all have this convergence capabilities, and can under the control of higher level equipment, finish multiplexing to up TDM relaying, need not to carry out the software and hardware upgrading and just can directly utilize.
Access media gateway of the present invention when carrying out Business Processing, to the control of the time-sharing multiplex of TDM relaying generally by center module control, but also can directly control by soft switch.If control by center module, then center module must be carried out resource management to the TDM relaying, in still unappropriated TDM relaying time slot at present, be that the subscriber's line that will call out distributes the relaying time slot, call out and finish the relaying time slot that back release has distributed.For this reason, need to preserve a TDM relaying Time Slot Occupancy situation information table, be used to write down the time slot that can distribute to subscriber's line termination equipment in the table, center module can be carried out the distribution of TDM relaying time slot according to this table.
At center module leading subscriber line during to the convergence of TDM relaying, to some important subscriber's line, such as semipermanent connection line or hot line subscriber's line, need to guarantee that by reserve TDM relaying time slot method for it these circuits can be assigned to TDM relaying time interval resource.
Among the present invention, connect whole faults, should think that subscriber's line termination equipment is also unavailable if arrive the TDM relaying of a subscriber's line termination equipment.For this reason, need all the TDM relaying connection status on the central monitoring position module, and the corresponding relation between related TDM relaying and the subscriber's line termination equipment, promptly be maintained into the TDM relaying tabulation of each subscriber's line termination equipment, can determine that according to content (being the connection status of TDM relaying) in the tabulation corresponding TDM relaying can use, or all unavailable, and then determine whether corresponding subscriber's line termination equipment is available.
Among the present invention, also be included in the TDM relaying and use special-purpose time slot, by HDLC (High level data link control) and on the reliable link layer protocol send message and realize by of the management control of TDM relaying to subscriber's line termination equipment.Comprise: connect by TDM subscriber's line termination equipment is controlled, make the shared TDM relaying of a plurality of subscriber's lines; And by the TDM relaying subscriber's line termination equipment is managed, described management comprises that the state of equipment checks, safeguards, operates, disposes or the like.
Therefore, among the present invention, if the TDM relaying can be used, interrupt but connect to the HDLC of subscriber's line termination equipment, for example the other side is responsible for the single board default that HDLC connects, and is equivalent to lose the control to subscriber's line termination equipment, also thinks the equipment fault of subscriber's line termination; Need all HDLC on the central monitoring position module to connect for this reason, and be maintained into the HDLC connection tabulation of each subscriber's line termination equipment, connect the subscriber's line termination equipment that interrupts for HDLC and determine that it is down state equally.
Need be for realizing that the shared TDM of a plurality of subscriber's lines connects by center module or MGC (medium access control) part the corresponding time slot of Client-initiated call distribution for each subscriber's line connection, thereby the Client-initiated that makes subscriber's line connect is called out the TDM relaying that can obtain needs, and communicates by letter with center module.
For this reason, center module needs related TDM to be relayed to the corresponding relation of subscriber's line termination equipment, be maintained into the TDM relaying time slot tabulation of certain subscriber's line termination equipment, writing down TDM relaying Time Slot Occupancy situation information in the table, can write down the gap information that can take usually.When the user makes a call, give the user with time slot allocation available in the tabulation of TDM relaying time slot, and connect notice subscriber's line termination equipment by above-mentioned HDLC.The time slot of release busy behind call release.Simultaneously, center module need monitor the state of TDM relaying, can not reallocate to subscriber's line termination equipment for the time slot that breaks down, nature should be deleted from freelist, normally just can add tabulation up to its recovery, that is to say the time slot situation that in store TDM relaying can be used in the tabulation of TDM relaying.
In addition, can not distribute to other subscriber's lines termination equipment for the user by the time slot that disposes semipermanent connection or hot line service and forever take, also should from available described tabulation, delete, when the user deletes corresponding configuration, just it can be joined in the described tabulation again.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (9)
1, a kind of access media gateway is characterized in that, comprising:
Access module: link to each other with user terminal by subscriber's line, be used to provide the termination function of subscriber's line, and link to each other with center module by the time division multiplexing tdm relaying;
Center module: link to each other with described access module by described TDM relaying, be used to provide encoding and decoding conversion and packet-processing function, and described access module is carried out control and management, for subscriber's line distributes the relaying time slot by the dedicated time slot in the described TDM relaying; According to the corresponding relation of the TDM relaying of preserving, High level data link control HDLC connection and subscriber's line termination equipment, and the connection state information that corresponding TDM relaying is connected with HDLC determines whether the respective user line termination equipment is available.
2, access media gateway according to claim 1 is characterized in that, described access module is a subscriber's line termination equipment, and described center module is encoding and decoding conversion and packet handling facilities.
3, access media gateway according to claim 2 is characterized in that, described trunk is direct-connected physical link or the connection line by transmission equipment.
4, access media gateway according to claim 2 is characterized in that, the remote subscriber frame equipment that described subscriber's line termination equipment is digital SPC exchange, or the optical network unit ONU equipment of V5 Access Network.
According to claim 1,2 or 4 described access media gateways, it is characterized in that 5, described access module is one or more.
6, a kind of method for processing business based on above-mentioned access media gateway is characterized in that, comprising:
Access module sends business information by the TDM relaying to center module; Described center module receives the service message that access module is sent by the TDM relaying, and carries out encoding and decoding conversion and packet transaction, also by the dedicated time slot in the described TDM relaying described access module is carried out control and management, for subscriber's line distributes the relaying time slot;
Described method further comprises: according to the corresponding relation of the TDM relaying of preserving, High level data link control HDLC connection and subscriber's line termination equipment, and the connection state information that the TDM relaying is connected with HDLC determines whether the respective user line termination equipment is available.
7, the method for processing business of access media gateway according to claim 6 is characterized in that, this method further comprises:
A, subscriber's line termination equipment send business information by the TDM relaying to described center module;
B, described center module receive the service message that subscriber's line termination equipment is sent by the TDM relaying, and carry out encoding and decoding conversion and packet transaction, also subscriber's line termination equipment is carried out control and management, for subscriber's line distributes the relaying time slot by the dedicated time slot in the described TDM relaying.
8, the method for processing business of access media gateway according to claim 7 is characterized in that, described steps A comprises:
According to the TDM relaying Time Slot Occupancy situation information of preserving is the corresponding available time slot of subscriber's line termination devices allocation;
Subscriber's line termination equipment sends information by distributed time slot in the TDM relaying to described center module.
9, according to the method for processing business of claim 7 or 8 described access media gateways, it is characterized in that, describedly by the dedicated time slot in the described TDM relaying described subscriber's line termination equipment carried out control and management and comprise:
Realize subscriber's line termination equipment being carried out control and management by High level data link control HDLC by the dedicated time slot in the TDM relaying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100862813A CN100514944C (en) | 2004-10-29 | 2004-10-29 | Access media gateway and its service processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100862813A CN100514944C (en) | 2004-10-29 | 2004-10-29 | Access media gateway and its service processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1767510A CN1767510A (en) | 2006-05-03 |
| CN100514944C true CN100514944C (en) | 2009-07-15 |
Family
ID=36743119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100862813A Expired - Fee Related CN100514944C (en) | 2004-10-29 | 2004-10-29 | Access media gateway and its service processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100514944C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100454906C (en) * | 2006-07-04 | 2009-01-21 | 华为技术有限公司 | Method and gateway for transmitting voice stream based on network load in wireless packet network |
| CN100456893C (en) * | 2006-09-30 | 2009-01-28 | 华为技术有限公司 | Load-supporting method and system for voice data |
| CN101179634B (en) * | 2007-12-12 | 2010-06-02 | 华为技术有限公司 | Method and equipment for screening data service |
| CN101707765B (en) * | 2009-09-16 | 2011-12-21 | 深圳市震有科技有限公司 | Method for transmitting calling number in V5 and media gateway control protocol converter |
-
2004
- 2004-10-29 CN CNB2004100862813A patent/CN100514944C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1767510A (en) | 2006-05-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6639913B1 (en) | System and method for communicating voice and data over a local packet network | |
| US6292482B2 (en) | Systems and methods for multiple mode voice and data communications using intelligently bridged TDM and packet buses | |
| US4757497A (en) | Local area voice/data communications and switching system | |
| EP0863679B1 (en) | Method and device for centralised call handling | |
| US8144729B2 (en) | Systems and methods for multiple mode voice and data communications using intelligently bridged TDM and packet buses | |
| CN1909558B (en) | Integrated access system, method and narrow-band service interface module | |
| KR19980703180A (en) | Narrowband voice traffic adaptation device in a local access network that enables transmission to a wideband asynchronous transmission mode network | |
| JPH06501365A (en) | Packet switching communication system | |
| JPH08214060A (en) | Communication system topology that providing dynamic assignment of b-channel | |
| JPH10271136A (en) | Method and system for asynchronous transfer mode integrated access service | |
| CN101262528B (en) | A multi-gateway backup method for voice access of network call | |
| CN101848134B (en) | Multi-service access node and data message forwarding method thereof | |
| US6456633B1 (en) | Unified distributed voice and data local area networking | |
| CN100514944C (en) | Access media gateway and its service processing method | |
| JP5251879B2 (en) | Access gateway and its operation method | |
| CN100452786C (en) | Large compositive gateway access system based on NGN | |
| EP1418789A1 (en) | Universal network termination | |
| EP1210809B1 (en) | Data routing means and method | |
| CN101015190B (en) | Method for transmitting telecommunications data from an access network to a media gateway controller | |
| CN101018197A (en) | A method, system and device for media stream transmission | |
| JP3101861B2 (en) | Common additional delay controller | |
| JPH11205338A (en) | Multimedia bus exchange and method | |
| US6925093B2 (en) | Communication apparatus, communication system and method for integrating speech and data | |
| KR20010028719A (en) | Method For Resource Release Of Using V5.2 PSTN Protocol Message | |
| CN101098317A (en) | Media gateway system |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090715 |