CN1297127C - Treating method for connection release between nodes based AAL2 signalling protocol - Google Patents
Treating method for connection release between nodes based AAL2 signalling protocol Download PDFInfo
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- CN1297127C CN1297127C CNB2004100694964A CN200410069496A CN1297127C CN 1297127 C CN1297127 C CN 1297127C CN B2004100694964 A CNB2004100694964 A CN B2004100694964A CN 200410069496 A CN200410069496 A CN 200410069496A CN 1297127 C CN1297127 C CN 1297127C
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Abstract
The present invention relates to a method for processing connection release among nodes based on an AAL2 signaling protocol. When the nodes based on the AAL2 signaling protocol receive RLC information transmitted by the opposite terminal, the present invention directly releases the occupied protocol entity and the corresponding resource information. When the connection of the local terminal is in an outgoing release unfinished state, a release conflict state or an outgoing establishment unfinished state, the occupied connection resources are not released. The realization of the present invention ensures that the system rapidly return to normal when the AAL2 signaling protocol has abnormal conditions, and the present invention effectively avoids the appearance of the abnormal conditions which affect the normal communication, and thereby, the realization of the present invention enhances the reliability and the stability of the communication system.
Description
Technical field
The present invention relates to network communications technology field, relate in particular to a kind of based on connecting the processing method that discharges between the node of AAL2 signaling protocol.
Background technology
AAL2 (atm adaptation layer 2) signaling protocol provides to be set up release and safeguards the AAL2 linkage function between two nodes, so that carrying user data in the AAL2 connection, this signaling protocol is widely used in 3GWCDMA (third generation Wideband Code Division Multiple Access (WCDMA)) standard.
The main flow process of this signaling protocol is as follows, referring to Fig. 1 and Fig. 2:
Set up originating end (node 1) and select suitable channel resource CEID (AAL2 linkage unit sign) according to destination-address and routing configuration, comprise path (Path) and channel (Channel), set up request message ERQ to neighbors (node 2) transmission, in the ERQ message except comprising channel resource and relevant informations such as destination address and Resource Properties, also comprised OSAID (source signaling connection identifier), this sign is sent end by message and is distributed, and is used for identification message to send the respective protocol entity of end.
After neighbors is received and is set up request message ERQ, check the validity of CEID and whether satisfy other access conditions, if correctly this end protocol entity enter and set up success status (Established state), and the OSAID in the ERQ message is saved in this locality as DSAID, set up acknowledge message ECF to the originating end loopback, the OSAID that the band local terminal distributes among the ECF, and the OSAID of opposite end filled in the message header as the DSAID (purpose signaling connection identifier) of local terminal.
The agreement originating end is received and is set up acknowledge message ECF, and the OSAID in the message is saved in this locality as DSAID, also enters to set up success status (Established state).
When the release originating end discharges, send release message REL to the opposite end, have DSAID and cause value in the message.Local terminal signaling protocol entity enters the state (Outgoing ReleasePending state) that sends that discharges.
Receive REL message when discharging receiving terminal, be converted to the OSAID of local terminal according to the DSAID in the message, because being local terminal, this value distributes, so than the protocol entity that is easier to find local terminal, discharge this protocol entity and OSAID, send Release complete RLC to discharging originating end, have DSAID in the message.
In communication process, might send release message REL simultaneously by two ends signaling protocol entity, so might be after sending release message, the Release complete RLC that receives the opposite end receives the release message REL of opposite end before earlier, at this moment protocol entity enters and discharges conflict situation (Release Collision state), and at this moment two ends all are to discharge originating end.
Receive RLC when discharging originating end, be converted to the OSAID of local terminal according to the DSAID in the message, find the protocol entity of local terminal according to this value, check whether this protocol entity is in release and sends state (outgoing release pending state) and discharge conflict situation (release collision state), if then discharge this protocol entity and OSAID, otherwise abandon this message.
Simultaneously, when local terminal is received described RLC message, set up unfinished state, then need to discharge this protocol entity and OSAID equally if local terminal is in striking out.
Above-mentioned when receiving described RLC message the handling process of node under normal circumstances can discharge shared protocol entity of corresponding connection and corresponding resource information as required.Yet, for communication system, always do not work under the normal condition, as when connecting the inconsistent situation in two ends and taking place, one end discharges unusually for a certain reason and connects protocol entity and the resource information that takies, but the other end still keeps this connection to be in normal condition, at this moment because a variety of causes is not received release message, the OSAID that has discharged an end of connection may be connected normal the use by other, cause abnormal conditions to take place.
Below the issuable consequence of described abnormal conditions is described further, as shown in Figure 3, the DSAID that connects the protocol entity 1 in the node 2 among a points to the entity 1 of node 1, and the protocol entity 1 of node 1 is owing to discharging unusually and reused in being connected b, the entity 3 of its DSAID sensing node 2.When initiating to discharge connection a, the entity 1 of node 2 cause the entity 1 of node 1 to discharge, this OSAID is released again with being repeated in being connected c and uses, the entity 5 that causes the entity 1 sensing node 2 of node 1, cause that simultaneously connection b function is undesired, when discharging, the entity 3 of node 2 cause the entity 1 of node 1 to be released again as a same reason, this OSAID is released again with being repeated in being connected d and uses, and causes that simultaneously connection c function is undesired.
Through above-mentioned description to the issuable consequence of abnormal conditions as can be seen, in case there is a connection can cause that unusually other connection takes place unusually chainly.The basic reason that this situation takes place is: have only DSAID and cause parameter in REL message, when illegal REL message is come, can't verify this informed source, can only release sb. unconditionally, this OSAID uses in process subsequently in other the newly-established connection, while, the DSAID according to the opposite end of local terminal record sent RLC message to the opposite end, when RLC message is received in the opposite end, if find oneself is not to discharge to send end, promptly be not in to discharge and send state (outgoing release pending state) and discharge conflict situation (release collision state), be not in striking out yet and set up unfinished state, then abandoning this message does not handle, this protocol entity does not discharge this moment, discharge with regard to protocol entity one end that causes these connection two ends like this and not release of the other end, the protocol entity that discharges will be applied to set up new connection by other connections, can initiatively discharge when connecting and to cause the newly-established connection in opposite end to discharge unusually not discharging an end subsequently, finally cause the system can't proper communication.
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 based on connecting the processing method that discharges between the node of AAL2 signaling protocol, effectively avoiding in communication system occurring the problem of chain release, thereby improve the stability and the reliability of system communication.
The objective of the invention is to be achieved through the following technical solutions:
The invention provides a kind of based on connecting the processing method that discharges between the node of AAL2 signaling protocol, comprise: when receiving the connection Release complete of sending the opposite end based on the node of AAL2 signaling protocol, Incoming discharges unfinished state, Incoming is set up unfinished state, established state, out unfinished state, modification conflict situation or the Incoming modification unfinished state revised if local terminal is in, and then also will discharge the connection resource that this connection takies.
The connection resource that described connection takies comprises: protocol entity that this connection takies and corresponding resource information.
Described based on connecting the processing method that discharges between the node of AAL2 signaling protocol, also comprise: local terminal changed idle condition over to after release connected the connection resource that takies.
It is a kind of based on connecting the processing method that discharges between the node of AAL2 signaling protocol that the present invention also provides, in this method, when receiving the connection Release complete of sending the opposite end based on the node of AAL2 signaling protocol, judge whether local terminal is in idle condition, if be in idle condition, then need not to handle,, then directly discharge the connection resource that this connection takies if be not in idle condition.
The connection resource that described connection takies comprises: protocol entity that this connection takies and corresponding resource information.
Described corresponding resource information comprises source signaling connection identifier OSAID.
Describedly also comprise based on the processing method that connect to discharge between the node of AAL2 signaling protocol: discharge connect the protocol entity that takies and corresponding resource information after local terminal change idle condition over to.
As seen from the above technical solution provided by the invention, the present invention is when receiving the RLC message of sending the opposite end based on the node of AAL2 signaling protocol, the directly protocol entity of release busy and resource information accordingly, and no longer be only local terminal connect be in outly discharge unfinished state, when discharging conflict situation or striking out and setting up unfinished state, the connection resource of ability release busy, guaranteed that the AAL2 signaling protocol is when abnormal conditions occurring, system is can very fast recovery normal, has avoided the proper communication of this anomalous effects to system effectively.Therefore, realization of the present invention has improved the reliability and the stability of communication system.
Description of drawings
Fig. 1 is not for there being the AAL2 signaling protocol basic procedure that discharges conflict and revise conflict situation;
The AAL2 signaling protocol basic procedure of Fig. 2 for taking place to discharge conflict and revising conflict situation;
Connect when Fig. 3 takes place for abnormal conditions and discharge entity relationship diagram;
Fig. 4 is the schematic diagram of method of the present invention.
Embodiment
Core concept of the present invention is to have carried out corresponding modification on the basis of standard A AL2 signaling protocol at the processing procedure that discharges connection, reduced to discharge and connected the protocol entity that takies and the state restrictive condition of corresponding resource information, promptly when receiving the Release complete that send the opposite end, if local terminal is not in the out unfinished state that discharges, discharge conflict situation or striking out and set up unfinished state, still can discharge the operational processes of connection resource according to the actual needs, thereby guaranteed to occur still can dischargeing protocol entity and the corresponding resource that takies reliably when unusual, made communication system can recover normal in the short period of time when connecting two ends.
When bring out now unusual release when connecting the protocol entity that takies and corresponding resource information based on one in the connection two ends of AAL2 signaling protocol, the state that the other end may be in usually comprises: Incoming discharges unfinished state (Incoming release pending), Incoming is set up unfinished state (incomingestablishment pending), established state (established), the out unfinished state (outgoing modify pending) of revising is revised conflict situation (modify collision) or Incoming and is revised unfinished state (incoming modify pending).Among the present invention, for guarantee that the communication two ends can all discharge the connection resource that takies in the regular hour section, avoid occurring the problem of chain release, then need to bring out existing abnormal conditions and discharge when connecting the connection resource that takies when communication one in two ends, after the other end was received and Release complete that abnormal conditions one end sends occurred, also the connection resource that connection is taken discharged.The connection resource that described connection takies comprises: protocol entity that this connection takies and corresponding resource information.Corresponding resource information comprises OSAID
For this reason, among the present invention, when receiving the Release complete that send the opposite end, judge that local terminal connects the specific state that is in, to be in protocol entity and the corresponding resource (connection resource that promptly takies) that the connection of particular state takies according to the needs that connect to discharge then and discharge, described particular state can set up unfinished state, established state for Incoming discharges unfinished state, Incoming, outly revise unfinished state, revise conflict situation and Incoming revises a kind of, multiple or whole in the unfinished state.For example, suppose that specific state comprises that Incoming sets up unfinished state and established state, then after local terminal is received the Release complete of sending the opposite end, judge that local terminal connects and whether be in Incoming and set up unfinished state or established state, if then discharge the connection resource that this connection takies.Local terminal changed idle condition over to after release connected the connection resource that takies.
If described particular state is chosen as all, then the present invention's technical scheme that can also adopt is: after receiving the Release complete of sending the opposite end when local terminal, only judge whether local terminal is in idle condition, if be in idle condition (being vacant any protocol entity and corresponding resource), then need not to carry out any processing, as be not in idle condition, then directly protocol entity and the corresponding resource that takies discharged.
That is to say, among the present invention, when node is received the Release complete of opposite end, illustrate that the opposite end has discharged its protocol entity and corresponding resource, so the protocol entity of local terminal and corresponding resource also should be done corresponding release.Therefore, even this moment, protocol entity was not to be in out release unfinished state, release conflict situation and striking out to set up unfinished state, Incoming discharges unfinished state, Incoming is set up unfinished state, established state, out unfinished state, modification conflict situation or the Incoming modification unfinished state revised but be in, and needs to discharge protocol entity and the respective resources (as OSAID information) that this connection takies too.Promptly as shown in Figure 4, after receiving the Release complete of sending the opposite end when local terminal, judge local terminal connect whether locate outly to discharge unfinished state, discharge conflict situation, unfinished state is set up in striking out, Incoming discharges unfinished state, Incoming is set up unfinished state, established state, outly revise unfinished state, revise conflict situation or Incoming is revised unfinished state, if, then discharge the connection resource that this connection takies, otherwise, do not do any processing.
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 (8)
1, a kind of based on connecting the processing method that discharges between the node of AAL2 signaling protocol, it is characterized in that this method comprises, when receiving the connection Release complete of sending the opposite end based on the node of atm adaptation layer 2 AAL2 signaling protocol, Incoming discharges unfinished state, Incoming is set up unfinished state, established state, out unfinished state, modification conflict situation or the Incoming modification unfinished state revised if local terminal is in, and then also will discharge the connection resource that this connection takies.
2, according to claim 1 based on connecting the processing method that discharges between the node of AAL2 signaling protocol, it is characterized in that the connection resource that described connection takies comprises:
Protocol entity that this connection takies and corresponding resource information.
3, according to claim 2 based on connecting the processing method that discharges between the node of AAL2 signaling protocol, it is characterized in that described corresponding resource information comprises source signaling connection identifier OSAID.
4, according to claim 1 and 2 based on connecting the processing method that discharges between the node of AAL2 signaling protocol, it is characterized in that also comprising:
Local terminal changed idle condition over to after release connected the connection resource that takies.
5, a kind of based on connecting the processing method that discharges between the node of AAL2 signaling protocol, it is characterized in that, when receiving the connection Release complete of sending the opposite end based on the node of AAL2 signaling protocol, judge whether local terminal is in idle condition, if be in idle condition, then need not to handle,, then directly discharge the connection resource that this connection takies if be not in idle condition.
6, according to claim 5 based on connecting the processing method that discharges between the node of AAL2 signaling protocol, it is characterized in that the connection resource that described connection takies comprises:
Protocol entity that this connection takies and corresponding resource information.
7, according to claim 6 based on connecting the processing method that discharges between the node of AAL2 signaling protocol, it is characterized in that described corresponding resource information comprises source signaling connection identifier OSAID.
8, according to claim 5 based on connecting the processing method that discharges between the node of AAL2 signaling protocol, it is characterized in that this method also comprises:
Local terminal changes idle condition over to after protocol entity that the release connection takies and the corresponding resource information.
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| CNB2004100694964A CN1297127C (en) | 2004-06-28 | 2004-06-28 | Treating method for connection release between nodes based AAL2 signalling protocol |
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| CNB2004100694964A CN1297127C (en) | 2004-06-28 | 2004-06-28 | Treating method for connection release between nodes based AAL2 signalling protocol |
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| CN1297127C true CN1297127C (en) | 2007-01-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101202769B (en) * | 2006-12-14 | 2011-08-24 | 华为技术有限公司 | Method and system for node identifying in wireless Mesh network |
| WO2015039340A1 (en) * | 2013-09-23 | 2015-03-26 | 华为技术有限公司 | Control method for active release of device, base station and user equipment |
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| CN1095544A (en) * | 1993-01-27 | 1994-11-23 | 艾利森电话股份有限公司 | The disconnect method of having set up in the mobile radio system that communicates to connect |
| WO2002052887A2 (en) * | 2000-12-22 | 2002-07-04 | Siemens Aktiengesellschaft | Method and device for atm transmission |
| WO2003010933A1 (en) * | 2001-07-24 | 2003-02-06 | Ntt Docomo, Inc. | Connection cutting method and associated link cut reporting method |
| CN1422500A (en) * | 2000-04-07 | 2003-06-04 | 艾利森电话股份有限公司 | Optimized packet-resource management |
| KR20030056513A (en) * | 2001-12-28 | 2003-07-04 | 엘지전자 주식회사 | Method of Stabilizing ALL2 Link for RACH FP |
| CN1440175A (en) * | 2002-01-31 | 2003-09-03 | 诺基亚公司 | System for radio telecommunication network |
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- 2004-06-28 CN CNB2004100694964A patent/CN1297127C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1095544A (en) * | 1993-01-27 | 1994-11-23 | 艾利森电话股份有限公司 | The disconnect method of having set up in the mobile radio system that communicates to connect |
| CN1422500A (en) * | 2000-04-07 | 2003-06-04 | 艾利森电话股份有限公司 | Optimized packet-resource management |
| WO2002052887A2 (en) * | 2000-12-22 | 2002-07-04 | Siemens Aktiengesellschaft | Method and device for atm transmission |
| WO2003010933A1 (en) * | 2001-07-24 | 2003-02-06 | Ntt Docomo, Inc. | Connection cutting method and associated link cut reporting method |
| KR20030056513A (en) * | 2001-12-28 | 2003-07-04 | 엘지전자 주식회사 | Method of Stabilizing ALL2 Link for RACH FP |
| CN1440175A (en) * | 2002-01-31 | 2003-09-03 | 诺基亚公司 | System for radio telecommunication network |
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