CN101127962B - Establishment method for half call flow of V5 wireless users - Google Patents
Establishment method for half call flow of V5 wireless users Download PDFInfo
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- CN101127962B CN101127962B CN2007101754538A CN200710175453A CN101127962B CN 101127962 B CN101127962 B CN 101127962B CN 2007101754538 A CN2007101754538 A CN 2007101754538A CN 200710175453 A CN200710175453 A CN 200710175453A CN 101127962 B CN101127962 B CN 101127962B
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Abstract
The utility model discloses a method for establishing semi-call process of V5 wireless subscribers, which comprises the following steps: A, wireless side triggers to users to pick up the phone, after receiving the dial tone and then sent the dialed number at one time to the side of V5 which in turn sends the dialed number to the local side; B, the local side searches for the recipient in memory according to the dialed number; C, the dialed side searches for bridging information in memory after receiving the information of finding the dialed information; D, the local side sends setup information after receiving the bridging message sent by the memory; E, the called side sends alerting message to the local side after the called side receives the setup message sent by the local side, and then provides the caller with the ring back tone and a ringing tone for the recipient; F, the local side implements the follow-up semi-call and establishes a process after receiving the alerting message. The utility model can effectively improve the calling connecting speed.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of V5 wireless user establishment method for half call flow.
Background technology
Digital SPC exchange is applied to all trades and professions by telecom operators, and it plays an important role in people's life.V5 interface protocol a small bundle of straw, etc. for silkworms to spin cocoons on has stipulated that signal physical criterion interconnected between Access Network and the digital SPC exchange, call control information transmit agreement, the V5 agreement provides the standard interface between Access Network and the digital SPC exchange, and the V5 interface can be used to carry one or more different types of communication path.
Along with the continuous impact of networking of future generation (NGN), the investment that how to make full use of existing public switched telephone network (PSTN) and how to protect operator has become a very important problem, and the V5 wireless user goes with the tide of historical development and gives birth to.Because the V5 wireless user adopts common frequency spectrum, economizes on resources, make it become a kind of very important the replenishing of PSTN net.
Half call flow is meant whole calling procedure is divided into caller and called two aspects, and oneself that half call flow is responsible in the complete conductively-closed of calling and called both sides separately.Please refer to Fig. 1, the V5 wireless user establishment method for half call flow of prior art comprises the steps:
After step 103, wireless side receive dialing tone, by out-of-band signalling called number is sent to the V5 side by turn, the V5 side-draw goes out the called number in the out-of-band signalling, and called number is sent to the local exchange side by turn;
After step 104, local exchange side joint are received called number, look for called to memory;
After the local exchange side joint is received called number, adopt the methods analyst called number of analyzing by turn, judge,, then send and look for called message to memory if can find calledly according to analysis result;
After step 106, local exchange side joint were received the bridge joint message of memory transmission, the request of transmission was set up (setup) message to callee side;
After step 107, callee side receive the setup message of local exchange side transmission, send (alerting) message of signaling, connect ring-back tone, give the called ring back tone that connects to caller to the local exchange side;
After step 108, local exchange side joint are received alerting message, give back Dual Tone Multifrequency resource or pulse (MFC) resource to memory;
There are the following problems when realizing for above-mentioned flow process:
When 1, the V5 wireless user does caller, report called number by turn, and in general, send an item sign indicating number and need 250ms at least, present domestic big city all is 8 item sign indicating numbers, if dial long-distance or mobile phone is exactly 11, gets off like this, a number process of whole called number is long, so the slow phenomenon of the speed that continues of caller will occur.General local dialing handshaking procedure needs 2s (250 * 8), long-distance longer be 2.75s (250 * 11), that gives the user feels it is not react for a long time after the dialing.
2, the V5 wireless user does when called, callee side is after the setup message that receives the transmission of local exchange side, directly return alerting message to caller, connect ring-back tone to caller, give the called ring back tone that connects, if and the ring-back tone of caller is nipped off in called this moment of just out of reach or shutdown again, cause the problematic misunderstanding of phone to the user.
Summary of the invention
Technical problem to be solved by this invention provides a kind of V5 wireless user establishment method for half call flow, to overcome the caller slow-footed defective that continues.
For solving the problems of the technologies described above, it is as follows to the invention provides technical scheme:
A kind of method for building up of V5 wireless user half call flow comprises the steps:
A, wireless side trigger user's off-hook, after receiving dialing tone, by out-of-band signalling with the disposable V5 side that sends to of called number, and by the V5 side with the disposable local exchange side that sends to of called number;
B, local exchange lateral root are looked for called according to the called number that receives to memory;
C, callee side receive that memory sends find called message after, look for bridge joint message to memory;
After D, local exchange side joint are received the bridge joint message of memory transmission, send setup message to callee side;
After E, callee side receive the setup message of local exchange side transmission, send alerting message, connect ring-back tone, give the called ring back tone that connects to caller to the local exchange side;
After F, local exchange side joint are received alerting message, carry out follow-up half call setup flow process.
In the steps A, the V5 side reports dialing (v5cdmadni) message with the disposable local exchange side that sends to of called number by newly-increased.
Described v5cdmadni message comprises: address field, type of message, called number length and called number.
Step B further comprises:
The local exchange side joint is received v5cdmadni message, obtain called number length according to the called number length field in the message, take out all positions of called number according to called number length, and carry out disposable called number analysis, judge whether to find called according to analysis result, determining to find when called, send and look for called message to memory.
What local exchange side number analysis adopted is tree structure.
In the step e, callee side when the called subscriber is the V5 wireless user, judges further whether the called subscriber is available after receiving the setup message of local exchange side transmission, if, send alerting message to the local exchange side, connect ring-back tone to caller, give the called ring back tone that connects; Otherwise, to after date, discharge this calling at first setting-up time.
In the step e, after callee side receives the setup message of local exchange side,, determine that then the called subscriber can use if in second setting-up time, receive idle message and the online message that the called subscriber sends.
Described first setting-up time is 30s.
Described second setting-up time is 9s.
The present invention improves existing half call flow, after wireless side receives dialing tone, with the disposable V5 side that sends to of called number, and by the V5 side with the disposable local exchange side that sends to of called number, compare with the telephone number that reports by turn of prior art, save 7-9 connecting time doubly, thereby improved the speed that continues of caller.When the called subscriber is the V5 wireless user, after callee side receives the setup message of local exchange side transmission, the present invention also further judges whether the called subscriber is available, after definite called subscriber can use, send alerting message to the local exchange side again, avoided unavailable the called subscriber, for example under called subscriber shutdown or the not online situation, the calling subscriber listens the problem of ring-back tone.
Description of drawings
Fig. 1 is the V5 wireless user establishment method for half call flow schematic diagram of prior art;
Fig. 2 is the V5 wireless user establishment method for half call flow schematic diagram of preferred embodiment of the present invention.
Embodiment
Key of the present invention is: set up in the process at V5 wireless user half call flow, after wireless side receives dialing tone, by out-of-band signalling with the disposable V5 side that sends to of called number, after the V5 side joint is received called number, with the disposable local exchange side that sends to of called number.Further, when the called subscriber was the V5 wireless user, callee side judged whether the called subscriber is available after receiving the setup message of local exchange side transmission, after definite called subscriber can use, sent alerting message to the local exchange side again.
For making the purpose, technical solutions and advantages of the present invention clearer, describe the present invention below in conjunction with the accompanying drawings and the specific embodiments.
Please refer to Fig. 2, the V5 wireless user establishment method for half call flow of preferred embodiment of the present invention comprises the steps:
Step 201, wireless side trigger user's off-hook, and the V5 side sends offhook message to the local exchange side;
Wireless side triggers user's off-hook, and is user resource allocation by the Signalling exchange mode, and after the local exchange side joint was received the offhook message that the V5 side sends, can also further judgement rise exhaled, and can rise and exhale, and then enters step 202, otherwise, connect busy tone to the user.
Step 202, local exchange side connect dialing tone to the user;
The local exchange side sends initialization (InitiateEvent) message to the V5 side, connects dialing tone to the calling subscriber, and wherein, initial message is used for initialization DTMF resource or pulse MFC resource.
After step 203, wireless side received dialing tone, with the disposable V5 side that sends to of called number, the V5 side-draw went out the called number in the out-of-band signalling by out-of-band signalling, and with the disposable local exchange side that sends to of called number;
Wherein, wireless side adopts Dual Tone Multifrequency or pulse (MFC) mode to send and is called out the numbers, and the local exchange side is converted into digital signal by DTMF or MFC decoder with the called number signal; With the disposable local exchange side that sends to of called number, this v5cdmadni message comprises address field, type of message, called number length, called number to the V5 side, and can disposablely carry 40 called numbers by newly-increased v5cdmadni message.
After step 204, local exchange side joint are received called number, look for called to memory;
After the local exchange side joint is received v5cdmadni message, obtain called number length according to the called number length field in the message, take out all positions of called number according to called number length, and carry out disposable called number analysis, what local exchange side number analysis adopted is tree structure, judge according to analysis result,, then send and look for called message to memory if can find calledly.
Step 205, memory find called after, send and to find called message to callee side, callee side receives that memory sends find called message after, send user property message to the local exchange side, and look for bridge joint message to memory;
In this step, callee side receives that memory sends find called message after, can also further judgement incoming call, and whether available resources are arranged, if can incoming call, to local exchange side hair family attribute message, looks for bridge joint message to database then again.
After step 206, local exchange side joint are received the bridge joint message of memory transmission, send setup message to callee side;
Step 207, callee side judge whether the called subscriber is available after receiving the setup message of local exchange side transmission, if, send alerting message to the local exchange side, connect ring-back tone, give the called ring back tone that connects to caller, otherwise, to after date, discharge this calling at first setting-up time;
When the called subscriber is the V5 wireless user, after callee side receives the setup message of local exchange side, if in second setting-up time (preferred value is 9s), receive idle message (V5_RingingCompleteEvent) and online message (ZxCDM AUserReadyEvent) that the called subscriber sends, illustrate that the called subscriber can use, send alerting message to the local exchange side again, connect ring-back tone to caller, give the called ring back tone that connects; Otherwise, illustrate that the called subscriber is unavailable, to after date, discharge this calling at first setting-up time (preferred value is 30s).
After step 208, local exchange side joint are received alerting message, give back DTMF resource or MFC resource to memory;
Step 209, called off-hook, both sides enter talking state;
Step 210, mutually not under the control mode, any one party on-hook finishes whole call flow, discharges all resources.
By the method for above-mentioned preferred embodiment, can improve the speed that continues of caller on the one hand; On the other hand, unavailable the called subscriber, for example under called subscriber shutdown or the not online situation, the calling subscriber can not hear ring-back tone, and what it was heard is prompt tone or busy tone.
Should be noted that at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spiritual scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (6)
1. a V5 wireless user establishment method for half call flow is characterized in that, comprises the steps:
A, wireless side trigger user's off-hook, after receiving dialing tone, by out-of-band signalling with the disposable V5 side that sends to of called number, and by the V5 side with the disposable local exchange side that sends to of called number; Wherein, wireless side adopts Dual Tone Multifrequency or pulse (MFC) mode to send and is called out the numbers, and the local exchange side is converted into digital signal by DTMF or MFC decoder with the called number signal; With the disposable local exchange side that sends to of called number, this v5cdmadni message can disposablely be carried 40 called numbers to the V5 side by newly-increased v5cdmadni message;
After B, local exchange side joint are received v5cdmadni message, obtain called number length according to the called number length field in the message, take out all positions of called number according to called number length, and carry out disposable called number analysis, what local exchange side number analysis adopted is tree structure, judge according to analysis result,, then send and look for called message to memory if can find calledly;
C, callee side receive that memory sends find called message after, look for bridge joint message to memory;
After D, local exchange side joint were received the bridge joint message of memory transmission, the request of transmission was set up message to callee side;
E, callee side receive after request that the local exchange side sends sets up message, judge whether the called subscriber is available, if, send signalling message to the local exchange side, connect ring-back tone to caller, to the called ring back tone that connects;
After F, local exchange side joint are received signalling message, give back DTMF resource or MFC resource to memory; Called off-hook, both sides enter talking state; Mutually not under the control mode, any one party on-hook finishes whole call flow, discharges all resources.
2. the method for claim 1 is characterized in that:
Described v5cdmadni message comprises: address field, type of message, called number length and called number.
3. the method for claim 1 is characterized in that:
In the step e, if the called subscriber is unavailable, then at first setting-up time to after date, discharge this calling.
4. method as claimed in claim 3 is characterized in that:
In the step e, after message is set up in the request that callee side receives the local exchange side,, determine that then the called subscriber can use if in second setting-up time, receive idle message and the online message that the called subscriber sends.
5. method as claimed in claim 3 is characterized in that:
Described first setting-up time is 30s.
6. method as claimed in claim 4 is characterized in that:
Described second setting-up time is 9s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101754538A CN101127962B (en) | 2007-09-29 | 2007-09-29 | Establishment method for half call flow of V5 wireless users |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2007101754538A CN101127962B (en) | 2007-09-29 | 2007-09-29 | Establishment method for half call flow of V5 wireless users |
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| Publication Number | Publication Date |
|---|---|
| CN101127962A CN101127962A (en) | 2008-02-20 |
| CN101127962B true CN101127962B (en) | 2011-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101754538A Expired - Fee Related CN101127962B (en) | 2007-09-29 | 2007-09-29 | Establishment method for half call flow of V5 wireless users |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101521862B (en) * | 2008-02-26 | 2013-01-16 | 中兴通讯股份有限公司 | Method for sending called number in wireless local loop system V5 interface |
| CN102571718A (en) * | 2010-12-20 | 2012-07-11 | 中国移动通信集团浙江有限公司 | Voice call handover method based on IMS network and handover application server |
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Granted publication date: 20110713 Termination date: 20170929 |