CN101287185B - Management method of external relay circuit of A interface for code transformer - Google Patents
Management method of external relay circuit of A interface for code transformer Download PDFInfo
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- CN101287185B CN101287185B CN2008101111684A CN200810111168A CN101287185B CN 101287185 B CN101287185 B CN 101287185B CN 2008101111684 A CN2008101111684 A CN 2008101111684A CN 200810111168 A CN200810111168 A CN 200810111168A CN 101287185 B CN101287185 B CN 101287185B
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Abstract
The invention discloses a method for managing an A interface trunk circuit with an external transcoder. The managing method, by means of a mode to transfer information among a base station controller, a mobile switching center and the transcoder through signaling links, manages the A interface trunk circuit timely when changes happen to the circuit states of the three parties, namely the base station controller, the mobile switching center and the transcoder, and can timely ensure that the circuit states of the base station controller, the mobile switching center and the transcoder in the GSM system are consistent and at the same time avoid the phenomenon that the A interface trunk circuit is wrongly designated to complete voice transmission when faults occur to the circuits which resultsin call failure.
Description
Technical field
The present invention relates to a kind of global system for mobile communications GSM (Global System for MobileCommunication; Hereinafter to be referred as GSM) the repeat circuit management method of system; Relate in particular to the external A interface repeat circuit management method of a kind of code pattern converter TC (Transcoder is hereinafter to be referred as TC).
Background technology
Gsm system comprises moving exchanging center MSC (Mobile Switching Center is hereinafter to be referred as MSC), base station services controller BSC (Base Station Controller is hereinafter to be referred as BSC), base station, travelling carriage etc.In mobile communication process; Travelling carriage sends voice or message to the base station; The base station uploads to BSC with voice that receive or message, and BSC uploads to MSC with it again, is connected owing to have a plurality of BSC to set up with MSC simultaneously; MSC at first will search out the BSC compass of competency under the travelling carriage according to the information that receives, and then make corresponding operating or processing.
The speech transmissions speed of wireless channel coding is 16kbps between BSC and the base station; The circuit that the A interface of MSC and the A interface of BSC are connected is called A interface repeat circuit; MSC is 64Kbps through A interface repeat circuit to the speech coding transmission rate of BSC; Make between MSC and the BSC and can set up the speech transmissions circuit, must between MSC and BSC, install a code pattern converter TC additional, the circuit here is the part of A interface repeat circuit between MSC and the BSC.TC is the equipment that big capacity code pattern converter is provided that cooperates BSC to use, and TC can the resource that it is inner distribute dynamically, and for each BSC that is connected on the TC shares use, the interface between TC and the BSC is called Ater Interface at this moment.Every road speech occupied bandwidth is 16K or 8K on the Ater Interface, can save transfer resource in a large number with respect to every road speech 64K of A mouth.The wireless channel speech coding of being accomplished 16kbps by TC is to the conversion the 64kbps coding.
Existing TC can be installed in BSC inside, is called built-in TC, is directly managed by BSC.Can also TC is external, be about under the situation of BSC as autonomous system TC to be arranged on the end near MSC, the networking structure when BSC uses external TC is as shown in Figure 1.Between BSC and the MSC, all have the repeat circuit of transporting speech and the signaling link of message transfer simultaneously between BSC and the TC; The repeat circuit connection is arranged between MSC and the TC and do not have signaling link to connect; Repeat circuit can be connected BSC and MSC through TC with signaling link; This moment, TC was transparent for signaling link, did not change.Under the external situation of TC; BSC no longer manages TC; This moment, TC was used for realizing the physical connection of A interface repeat circuit; BSC is used for then realizing that with MSC the logic of A interface repeat circuit is connected, and A interface repeat circuit is carried out management maintenance, and TC does not play a part to administer and maintain in this process.
On the one hand, at present, under the external situation of TC, BSC does not manage A interface repeat circuit.But in practical application; The situation that the system failure that the meeting appearance occurs because of physical connection causes A interface repeat circuit to break down; If TC can not send to BSC with the A interface repeat circuit state that has changed; BSC does not just know the accurate status of A interface repeat circuit so, can't the accurate status of A interface repeat circuit be reported to MSC yet.
On the other hand, when central relay route MSC assigns, if BSC can't can cause MSC not knowing to assign faulted circuit to remove message transfer under the situation of circuit state the circuit state notice MSC that breaks down, the situation that appearance can't operate as normal; When central relay route BSC assigns, because BSC can't pick out the faulty circuit that causes owing to the TC reason, so BSC also may assign out of order repeat circuit to come message transfer by error.
For the situation of above-mentioned two aspects, just need under the situation of external TC, manage A interface repeat circuit, need BSC that A interface repeat circuit state is synchronous to TC.Simultaneously, safeguard that from TC the angle of A interface repeat circuit is seen, TC also need obtain the accurate circuit state of A interface repeat circuit.The synchronous problem of circuit state between TC, BSC, the MSC three has appearred like this.
Between this three; Owing to do not have third generation partner program (3rd GenerationPartnership Project between TC and the MSC; Abbreviation 3GPP) communication protocol of standard code can be followed; Do not have signaling link yet, have only BSC to have signaling link respectively and between TC and the MSC, so can not directly consult with regard to A interface repeat circuit between TC and the MSC; Therefore have only BSC directly to manage the repeat circuit state of TC and MSC through signaling link, like this MSC to the management of A interface repeat circuit state to the synchronous and TC of TC management result need accomplish by BSC synchronously to MSC to A interface repeat circuit state.
For MSC, TC and BSC are called the opposite end, and MSC is called local terminal; For TC, BSC and MSC are called the opposite end, and TC is called local terminal; And for BSC, then have the requirement of distinguishing MSC and TC.
Therefore, concerning MSC and TC, A interface repeat circuit state has: local terminal is inaccessible, local terminal is separated and closed, the opposite end is inaccessible, the opposite end is separated and closed, the opposite end is unequipped.Wherein, the unequipped BSC of referring in opposite end is unkitted and has the A interface circuit, and obturation comprises inaccessible two kinds of artificial obturation and fault.Concerning BSC; A interface repeat circuit state has: local terminal is inaccessible, local terminal is separated and closed, TC is inaccessible, TC separates and closes, MSC is inaccessible, MSC separates and closes, TC is unequipped, MSC is unequipped; All these states BSC will preserve side by side; The separating of BSC end closes flow process and inaccessible flow process all must be initiated by the network manager is artificial, and can not be initiated automatically by BSC.
Can find out that possibly there is tripartite inconsistent situation in circuit state, how these states reasonably managed, be a problem that presses for solution.
Summary of the invention
The technical problem that the present invention will solve is, provides a kind of code pattern converter external A interface repeat circuit management method, management A interface repeat circuit so that MSC, BSC, the tripartite circuit state of TC realize synchronously.
The technical scheme that the present invention adopts is following:
The present invention is through the signaling link pass-along message between BSC and MSC, BSC and the TC; Promptly send to other each side to the circuit state message that changes timely; And the repeat circuit state of other each side operated accordingly, so that tripartite circuit state is synchronous.
In same A interface repeat circuit,, follow following two principles for the A interface repeat circuit management of MSC and TC:
1) when BSC or MSC when TC is synchronous; When soon the circuit state message of BSC or MSC sends to TC; As long as there be at least a in the inaccessible or MSC obturation of BSC in this A interface repeat circuit; TC thinks that the opposite end is inaccessible; Have only BSC and MS for TC all for separating the state of closing, TC thinks that just this A interface repeat circuit is in the opposite end and separates the state of closing;
2) when TC or BSC when MSC is synchronous; When soon the circuit state message of TC or BSC sends to MSC; As long as there be at least a in the inaccessible or TC obturation of BSC in this A interface repeat circuit; MSC thinks that the opposite end is inaccessible; Have only BSC and TC for MSC all for separating the state of closing, MSC thinks that just this A interface repeat circuit is in the opposite end and separates the state of closing;
3) when among MSC or the TC during unequipped A mouth interface circuit, BSC will initiate inaccessible order to the third party under the furnished situation of third party.
According to above-mentioned two principles, be to the management method of the external A interface repeat circuit of TC:
1) when the network manager initiates the BSC obturation, the circuit state message that BSC is inaccessible is issued TC and MSC, makes the tripartite state synchronized of BSC, MSC and TC;
2) separate when closing when the network manager initiates BSC,, and do not have the inaccessible and unequipped A interface circuit of MSC of MSC, then BSC is separated the circuit state message of closing and send to TC if this A interface repeat circuit has been equipped the A interface circuit at TC; If this A interface repeat circuit has been equipped the A interface circuit at MSC, and there is not the inaccessible and unequipped A interface circuit of TC of TC, then BSC separated the circuit state message of closing and send to MSC;
3) when TC was inaccessible, BSC received the circuit state message that TC is inaccessible, and BSC judges in conjunction with the state of itself then; If exist BSC inaccessible; Then BSC does not send to MSC with the circuit state of TC, and if there is no BSC is inaccessible, and then BSC sends to MSC with the circuit state of TC;
4) separate when closing as TC; BSC receives that TC separates the circuit state message of closing; BSC judges whether this A interface repeat circuit exists the BSC obturation or MSC is inaccessible or MSC is unequipped then; If exist BSC inaccessible or MSC inaccessible or at least a in unequipped of MSC; Then BSC initiates inaccessible to TC; If there is no BSC is inaccessible; MSC is inaccessible and MSC is unequipped; Then BSC does not send to MSC with the circuit state of TC; Next BSC judges in conjunction with the state of itself; If exist BSC inaccessible; Then the BSC circuit state that BSC is inaccessible sends to MSC, and if there is no BSC is inaccessible, and then BSC sends to MSC with the circuit state of TC;
5) when MSC was inaccessible, BSC received the circuit state message that MSC is inaccessible, and BSC judges in conjunction with the state of itself then; If exist BSC inaccessible; Then BSC does not send to TC with the circuit state of MSC, and if there is no BSC is inaccessible, and then BSC sends to TC with the state of MSC;
6) separate when closing as MSC; BSC receives that MSC separates the circuit state message of closing; BSC judges whether this A interface repeat circuit exists the BSC obturation or TC is inaccessible or TC is unequipped then; If exist BSC inaccessible or TC inaccessible or at least a in unequipped of TC; Then BSC initiates inaccessible to MSC; If there is no BSC is inaccessible; TC is inaccessible and TC is unequipped; Then BSC does not send to TC with the circuit state of MSC; Next BSC judges in conjunction with the state of itself; If exist BSC inaccessible; Then the BSC circuit state that it is inaccessible sends to TC, and if there is no BSC is inaccessible, and then BSC sends to TC with the state of MSC;
7) when the unequipped A interface circuit of TC; TC sends to BSC with the circuit state message of its unequipped A interface circuit; BSC combines the state of MSC to judge then, if MSC has equipped the A interface circuit, then initiates the MSC obturation by BSC; If the unequipped A interface circuit of MSC, then BSC does not initiate the MSC obturation;
8) when the unequipped A interface circuit of MSC, MSC sends to BSC with the circuit state message of its unequipped A interface circuit, and BSC is in conjunction with the state of TC then; If TC has equipped the A interface circuit; Then initiate the TC obturation by BSC, if the unequipped A interface circuit of TC, then BSC does not initiate the TC obturation;
9) when circuit reset that BSC initiates; At first by BSC to MSC transtation mission circuit reset message; Judge then whether this A interface repeat circuit exists BSC inaccessible or TC is unequipped or TC is inaccessible, if exist BSC inaccessible or TC is unequipped or at least a in inaccessible of TC, then BSC initiates inaccessible to MSC; BSC is inaccessible, TC is unequipped and TC is inaccessible if do not exist, and then BSC does not initiate inaccessible to MSC.Next judge whether this A interface repeat circuit exists the BSC obturation or MSC is unequipped or MSC is inaccessible; If exist BSC inaccessible or MSC is unequipped or at least a in inaccessible of MSC; Then BSC initiates inaccessible to TC; If there is no BSC is inaccessible, MSC is unequipped and MSC is inaccessible, and then BSC does not initiate inaccessible to TC;
Adopt technique scheme, the present invention has advantage at least:
The external A interface repeat circuit management method of code pattern converter of the present invention is passed through the mode of signaling link pass-along message; MSC, BSC, TC in the A interface repeat circuit when changing, are effectively managed tripartite circuit state; Can in time guarantee TC in the gsm system, MSC, the tripartite circuit state unanimity of BSC; Thereby avoided when circuit breaks down, assigned out of order A interface repeat circuit to come transporting speech by error, and then caused the phenomenon of conversation failure.
Description of drawings
Fig. 1 is that the A interface signaling link between BSC and the MSC passes through TC transparent transmission sketch map;
Fig. 2 artificial BSC of initiation that serves as reasons separates and closes flow chart;
Fig. 3 inaccessible flow chart of the artificial BSC of initiation of serving as reasons;
Fig. 4 is for being initiated to separate to close flow chart by MSC;
Fig. 5 is for to initiate inaccessible flow chart by MSC;
Fig. 6 is the flow chart of safeguarding under the unequipped situation of MSC;
Fig. 7 is the circuit reset flow chart of being initiated by BSC.
Embodiment
Reach technological means and the effect that predetermined purpose is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to the external A interface repeat circuit management method of code pattern converter that proposes according to the present invention, specify as after.
All there is repeat circuit to connect between MSC, BSC and TC three are mutual; Also has the connection of signaling link between MSC and the BSC, between BSC and the TC; Embodiments of the invention are through the signaling link pass-along message between BSC and MSC, BSC and the TC; Promptly send to other each side to the circuit state message that changes timely, and the repeat circuit state of other each side is operated accordingly, so that tripartite circuit state is synchronous.
The separating of BSC end closes flow process and inaccessible flow process all must be initiated by the network manager is artificial, and can not be initiated automatically by BSC.
When MSC, BSC, the tripartite circuit state appearance of TC variation, following for the management process of contingent several kinds of situation:
1. initiate the inaccessible flow process of BSC by manual work, as shown in Figure 2.
Step 1, the network manager initiates certain bar A interface repeat circuit obturation of BSC end;
Step 2, the state that BSC is provided with this A interface repeat circuit of local terminal is that BSC is inaccessible, and sends the inaccessible message of BSC to TC and MSC;
Step 3, flow process finishes.
Need to prove that BSC can send the inaccessible message of BSC to TC earlier in the last step 2, also can send the inaccessible message of BSC to MSC earlier.
2. separate by manual work initiation BSC and close flow process, as shown in Figure 3.
Step 1, certain bar A interface repeat circuit manual work that the network manager initiates BSC end is separated and is closed;
Step 2, the state that BSC is provided with this repeat circuit of local terminal is separated for the BSC manual work and is closed, and judges whether to exist the BSC fault inaccessible, if exist the BSC fault inaccessible, then changes step 5 over to, otherwise execution in step three;
Step 3; Under the situation of TC equipment, BSC judges whether this A interface repeat circuit state exists MSC inaccessible or MSC is unequipped, if there be at least a in unequipped of MSC obturation and MSC; Then BSC does not separate the message of closing with it and sends to TC; Be that BSC does not initiate synchronously to TC, if do not exist MSC inaccessible and MSC is unequipped, then BSC separates the message of closing with it and sends to TC;
Step 4; Under the situation of MSC equipment, BSC judges whether this A interface repeat circuit state exists TC inaccessible or TC is unequipped, if there be at least a in unequipped of the inaccessible perhaps TC of TC; Then BSC does not separate the message of closing with it and sends to MSC; Be that BSC does not initiate synchronously to MSC, perhaps TC is unequipped if there is not the TC obturation, and then BSC separates the message of closing with it and sends to MSC;
Step 5, flow process finishes.
Need to prove, above-mentionedly initiate by manual work that BSC separates the step 3 of closing flow process and the order of step 4 can be exchanged.
3. initiate inaccessible flow process by TC.
Step 1, BSC receives the message that TC is inaccessible;
Step 2, whether this A interface repeat circuit of BSC inquiry exists, if exist, execution in step three if do not exist, is then directly responded the unequipped message of circuit to TC;
Step 3, it is the TC blocked state that BSC is provided with this A interface repeat circuit, and responds inaccessible response to TC;
Step 4; BSC judges whether this A interface repeat circuit exists BSC inaccessible; If exist BSC inaccessible; Then BSC does not send to third party MSC with the inaccessible message of an inaccessible side TC; Be that BSC does not initiate synchronously to MSC; If there is no BSC is inaccessible, and then BSC sends to third party MSC with the inaccessible message of an inaccessible side TC;
Step 5, flow process finishes.
4. initiate to separate to close flow process by TC.
Step 1, BSC receives that TC separates the message of closing;
Step 2, whether this A interface repeat circuit of BSC inquiry exists, if exist, execution in step three if do not exist, is then directly responded the unequipped message of circuit to TC;
Step 3, BSC returns to separate to close to TC and replys;
Step 4; BSC judges whether this A interface repeat circuit exists BSC obturation or third party MSC obturation or third party MSC unequipped; If there be at least a in unequipped of inaccessible or MSC obturation of BSC or MSC; Then BSC closes side TC initiation obturation to separating; If there is no BSC is inaccessible, MSC is inaccessible and MSC is unequipped, and then BSC will not separate the circuit state that closes a side TC and send to third party MSC;
Step 5, BSC judges whether this A interface repeat circuit exists BSC inaccessible, if exist BSC inaccessible, then the BSC message that it is inaccessible sends to MSC, and promptly BSC initiates synchronously to MSC, if do not exist BSC inaccessible, then BSC separates the message of closing with TC and sends to MSC;
Step 6, flow process finishes.
5. initiate inaccessible flow process by MSC.As shown in Figure 4.
Step 1, BSC receives the message that MSC is inaccessible;
Step 2, whether this A interface repeat circuit of BSC inquiry exists, if exist, execution in step three if do not exist, is then directly responded the unequipped message of circuit to MSC;
Step 3, it is the MSC blocked state that BSC is provided with this A interface repeat circuit, and responds inaccessible response to MSC;
Step 4; BSC judges whether this A interface repeat circuit exists BSC inaccessible; If exist BSC inaccessible; Then BSC does not send to third party TC with the inaccessible message of an inaccessible side MSC; Be that BSC does not initiate synchronously to TC; If there is no BSC is inaccessible, and then BSC sends to third party TC with the inaccessible message of an inaccessible side MSC;
Step 5, flow process finishes.
6. initiate to separate to close flow process by MSC, as shown in Figure 5.
Step 1, BSC receives that MSC separates the message of closing;
Step 2, whether this A interface repeat circuit of BSC inquiry exists, if exist, execution in step three if do not exist, is then directly responded the unequipped message of circuit to MSC;
Step 3, it is that MSC separates the state of closing that BSC is provided with this A interface repeat circuit, and returns to separate to close to MSC and reply;
Step 4; BSC judges whether this A interface repeat circuit exists BSC obturation or third party TC obturation or third party TC unequipped; If there be at least a in unequipped of inaccessible or TC obturation of BSC or TC; Then BSC closes side MSC initiation obturation to separating; If there is no BSC is inaccessible, TC is inaccessible and TC is unequipped, and then BSC will not separate the circuit state that closes a side MSC and send to third party TC;
Step 5, BSC judges whether this A interface repeat circuit exists BSC inaccessible, if exist BSC inaccessible, then the BSC message that it is inaccessible sends to TC, and promptly BSC initiates synchronously to TC, if do not exist BSC inaccessible, then BSC separates the message of closing with MSC and sends to TC;
Step 6, flow process finishes.
7.TC the circuit under the unequipped situation is safeguarded flow process.
Step 1, BSC receives the unequipped message of TC, it is that TC is unequipped that this repeat circuit state is set;
Step 2; BSC judges whether this A interface repeat circuit exists BSC inaccessible or third party MSC is unequipped; If there be at least a in unequipped of the inaccessible or MSC of BSC, then BSC does not send to MSC with the unequipped message of TC, and promptly BSC does not initiate synchronously to MSC; If do not exist BSC obturation and MSC unequipped, then BSC initiates inaccessible to MSC;
Step 3, flow process finishes.
8.MSC the circuit that is not equipped with under the situation is safeguarded flow process, and is as shown in Figure 6.
Step 1, BSC receives the unequipped message of MSC, it is that MSC is unequipped that this repeat circuit state is set;
Step 2; BSC judges whether this A interface repeat circuit exists BSC inaccessible or third party TC is unequipped; If there be at least a in unequipped of the inaccessible or TC of BSC, then BSC does not send to TC with the unequipped message of MSC, and promptly BSC does not initiate synchronously to TC; If do not exist BSC obturation and TC unequipped, then BSC initiates inaccessible to TC;
Step 3, flow process finishes.
9. the circuit reset flow process of initiating by BSC, as shown in Figure 7.
Step 1, BSC initiates circuit reset for a certain reason, to MSC transtation mission circuit reset message;
Step 2; BSC judges whether this A interface repeat circuit exists the BSC obturation or TC is unequipped or TC is inaccessible; If exist BSC inaccessible or TC is unequipped or at least a in inaccessible of TC; Then BSC initiates inaccessible to MSC; If there is no BSC is inaccessible, TC is unequipped and TC is inaccessible, and then BSC does not initiate inaccessible to MSC;
Step 3; BSC judges whether this A interface repeat circuit exists the BSC obturation or MSC is unequipped or MSC is inaccessible; If exist BSC inaccessible or MSC is unequipped or at least a in inaccessible of MSC; Then BSC initiates inaccessible to TC; If there is no BSC is inaccessible, MSC is unequipped and MSC is inaccessible, and then BSC does not initiate inaccessible to TC;
Step 4, flow process finishes.
Need to prove that in the above-mentioned circuit reset flow process by the BSC initiation, the order of step 3 and step 2 can be exchanged.
Because MSC and TC are the relation of equity with respect to BSC; Closed the management method of the circuit maintenance under flow process and the unequipped situation of TC by the obturation reconciliation of TC initiation similar with the flow chart of the management method of being closed the circuit maintenance under flow process and the unequipped situation of MSC by the obturation reconciliation of MSC initiation; So only provided the flow chart that is closed the management method of the circuit maintenance under flow process and the unequipped situation of MSC by the obturation reconciliation of MSC initiation in the Figure of description, still the flow chart of the management method of the circuit maintenance under flow process and the unequipped situation of TC is closed in the obturation reconciliation of type release TC initiation easily thus.
Through the explanation of embodiment, when can being to reach technological means and the effect that predetermined purpose takes to be able to more deeply and concrete understanding to the present invention, yet appended diagram only provides the usefulness of reference and explanation, is not to be used for the present invention is limited.
Claims (3)
1. A interface repeat circuit management method that code pattern converter is external is characterized in that comprising following treatment step:
1) when the network manager initiates base station services controller BSC obturation, the circuit state message that BSC is inaccessible is issued code pattern converter TC and moving exchanging center MSC;
2) separate when closing when the network manager initiates BSC,, and do not have MSC obturation or the unequipped A interface circuit of MSC, then BSC is separated the circuit state message of closing and send to TC if this A interface repeat circuit has been equipped the A interface circuit at TC; If this A interface repeat circuit has been equipped the A interface circuit at MSC, and does not have TC obturation or the unequipped A interface circuit of TC, then BSC is separated the circuit state message of closing and send to MSC;
3) when TC or MSC obturation; BSC receives TC obturation or the inaccessible circuit state message of MSC; BSC judges in conjunction with the state of itself then; If exist BSC inaccessible; Then BSC does not send to the third party with an inaccessible side's circuit state; If there is no BSC is inaccessible, and then BSC sends to the third party with an inaccessible side's circuit state;
4) separate when closing as TC or MSC; BSC receives that TC or MSC separate the circuit state message of closing, and BSC judges whether this A interface repeat circuit exists BSC inaccessible or the third party inaccessible or the unequipped A interface circuit of third party then, if exist BSC inaccessible or the third party is inaccessible or the unequipped A interface circuit of third party at least a; Then BSC closes side initiation obturation to separating; BSC is inaccessible, the third party is inaccessible and the unequipped A interface circuit of third party if do not exist, and then BSC will not separate the circuit state that closes a side and send to the third party, and next the state of BSC combination itself is judged; If exist BSC inaccessible; Then the BSC circuit state that BSC is inaccessible sends to the third party, if do not exist BSC inaccessible, then BSC will separate the circuit state that closes a side and send to the third party;
5) when the unequipped A interface circuit of TC or MSC, BSC receives the circuit state message of TC or the unequipped A interface circuit of MSC, and BSC has equipped the third party under the situation of A interface circuit, and the third party is initiated inaccessible order.
2. the A interface repeat circuit management method that code pattern converter according to claim 1 is external; It is characterized in that also comprising the circuit reset flow process of BSC initiation; Concrete treatment step is following: at first by BSC to MSC transtation mission circuit reset message, judge then whether this A interface repeat circuit exists the inaccessible or unequipped A interface circuit of TC of BSC or TC inaccessible, if there be at least a in BSC inaccessible or unequipped A interface circuit of TC or the TC obturation; Then BSC initiates inaccessible to MSC; If do not have BSC obturation, the unequipped A interface circuit of TC and TC obturation, then BSC does not initiate obturation to MSC, judges next whether this A interface repeat circuit exists inaccessible perhaps unequipped A interface circuit of MSC of BSC or MSC obturation; If there be at least a in BSC inaccessible or unequipped A interface circuit of MSC or the MSC obturation; Then BSC initiates obturation to TC, if do not exist BSC obturation, the unequipped A interface circuit of MSC and MSC inaccessible, then BSC does not initiate inaccessible to TC.
3. the A interface repeat circuit management method that code pattern converter according to claim 1 is external; It is characterized in that also comprising the circuit reset flow process of BSC initiation; Concrete treatment step is following: at first by BSC to MSC transtation mission circuit reset message, judge then whether this A interface repeat circuit exists the inaccessible or unequipped A interface circuit of MSC of BSC or MSC inaccessible, if there be at least a in BSC inaccessible or unequipped A interface circuit of MSC or the MSC obturation; Then BSC initiates inaccessible to TC; If do not have BSC obturation, the unequipped A interface circuit of MSC and MSC obturation, then BSC does not initiate obturation to TC, judges next whether this A interface repeat circuit exists inaccessible perhaps unequipped A interface circuit of TC of BSC or TC obturation; If there be at least a in BSC inaccessible or unequipped A interface circuit of TC or the TC obturation; Then BSC initiates obturation to MSC, if do not exist BSC obturation, the unequipped A interface circuit of TC and TC inaccessible, then BSC does not initiate inaccessible to MSC.
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| CN101778432B (en) * | 2009-12-22 | 2012-10-17 | 华为技术有限公司 | Method and device for conversion of voice rate |
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| CN101657046A (en) * | 2009-09-14 | 2010-02-24 | 中兴通讯股份有限公司 | Data transmitting method of userplane based on Iur-g interface and device |
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| CN1859643A (en) * | 2005-12-20 | 2006-11-08 | 华为技术有限公司 | Digital cluster system and method in A interface sharing relay circuit |
| CN1878420A (en) * | 2006-07-10 | 2006-12-13 | 华为技术有限公司 | Method for holding resource consistency between wireless network controller and base station |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101778432B (en) * | 2009-12-22 | 2012-10-17 | 华为技术有限公司 | Method and device for conversion of voice rate |
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| CN101287185A (en) | 2008-10-15 |
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