CN102916939A - Implementation method and implementation system of PTT (push-to-talk) call based on VOIP (voice over internet protocol) technology - Google Patents
Implementation method and implementation system of PTT (push-to-talk) call based on VOIP (voice over internet protocol) technology Download PDFInfo
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- CN102916939A CN102916939A CN2012103435190A CN201210343519A CN102916939A CN 102916939 A CN102916939 A CN 102916939A CN 2012103435190 A CN2012103435190 A CN 2012103435190A CN 201210343519 A CN201210343519 A CN 201210343519A CN 102916939 A CN102916939 A CN 102916939A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
- H04L65/4061—Push-to services, e.g. push-to-talk or push-to-video
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
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Abstract
The invention discloses an implementation method and an implementation system of a PTT (push-to-talk) call based on a VOIP (voice over internet protocol) technology. a speech authority of a PTP client is decided by a PTT server according to a data source mark passed currently, and an RTP (real-time transport protocol) voice data packet transmitted by the PTT client with the speech authority is transmitted to a third party PTT client in a multicast manner to achieve a group call function by carrying out header extension on the RPT voice data packet transmitted by the PTT client and setting the data source mark of the current call at the header extension part. Furthermore, the implementation mode of carrying out header extension on the RTP voice data packet is simple and easy to achieve; a correct decision can be made by the PTT server only through a data source mark, and design and popularization of the system are facilitated.
Description
Technical field
The present invention relates to the application of communication of mobile terminal technology, in particular a kind of PTT call implementing method and realization system based on the VOIP technology.
Background technology
The full name of VoIP is Voice On IP, is the conversation based on Internet, and from the angle of using, it is similar to common mobile phone can realize point-to-point conversation.The advantage of VoIP maximum is conversed cheaply exactly, but can not realize the conversation of one-to-many.
The full name of PTT is Push To Talk, i.e. Push-to-Talk, and its function class is similar to traditional intercom.The advantage of PTT is to have the function of grouping busy.It can arrange in groups, such as has ten personal settings to become one group, and a people is in speech so, and other nine people can both hear.The staff of company, mechanism (such as hotel, airport) or tissue (such as construction team) can form a group and use this function of grouping busy, and unnecessaryly informs by telephone singly.
Along with the development of the communication technology, group busy that based on VOIP technology realization PTT conversation becomes possibility, but how too complicated existing implementation method and system be, is unfavorable for promoting.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is, defects for prior art, a kind of PTT call implementing method based on the VOIP technology and realization system are provided, solve the function of grouping busy of VOIP, and so that group busy the simplicity of design of conversation, easily popularization based on VOIP technology realization PTT.
The technical scheme that technical solution problem of the present invention adopts is as follows:
A kind of PTT call implementing method based on the VOIP technology wherein, may further comprise the steps:
A, the PTT client by having the VOIP function are carried out the head expansion to sent the RTP VoP, the data source identification of one current talking is set at an expansion, and the RTP VoP after the head expansion is sent to the ptt server with VOIP function;
B, described ptt server read the data source identification of the current talking in the RTP VoP after the described head expansion, and judge the competence of speech of described PTT client according to the residing interval range of value of the data source identification of described current talking;
C, when judging that described PTT client has a say, the RTP VoP of described ptt server after with described head expansion sends to third party PTT client with the multicast form.
Described PTT call implementing method based on the VOIP technology, wherein, described steps A comprises:
Described PTT client is with the extended bit position 1 of RTP gland in the RTP VoP to be sent, for the RTP gland increases described expansion.
Described PTT call implementing method based on the VOIP technology, wherein, described step B also comprises:
When the value of the data source identification of described current talking was 0x1, described PTT client had speech and seizes power;
When the value of the data source identification of described current talking was in interval 0x2-0xFFFFFF, described PTT client not speech was seized power, and applies for obtaining the floor when PTT client in no third side is made a speech;
When the value of the data source identification of described current talking was in interval 0x1000000-0xFFFFFFFF, described PTT client did not have right to speak.
Described PTT call implementing method based on the VOIP technology, wherein, described step B also comprises:
When described ptt server receives RTP VoP after the described head expansion, judge in the RTP VoP after described head is expanded whether speech data is arranged;
Judge that when not having speech data in the RTP VoP after the described head expansion this PTT client abandons right to speak, otherwise the residing interval range of value of the data source identification by described current talking is judged the competence of speech of described PTT client.
Described PTT call implementing method based on the VOIP technology, wherein, the data source identification unique identification one PTT client of the current talking in the described steps A is used for the competence of speech that described ptt server is judged described PTT client accordingly.
Described PTT call implementing method based on the VOIP technology, wherein, the data source identification length of described current talking is 4 bytes.
A kind of PTT conversation realization system based on the VOIP technology wherein, comprises PTT client and ptt server with VOIP function, wherein,
Described PTT client is used for the RTP VoP is carried out the head expansion, and the data source identification of a current talking is set at an expansion, and the RTP VoP after the head expansion is sent to described ptt server;
RTP VoP after described ptt server is expanded for the head that receives described PTT client transmission, and obtain the data source identification of described current talking, judge the competence of speech of described PTT client by the data source identification of described current talking, and make the operation that whether the RTP VoP is sent to third party PTT client in the mode of multicast according to the competence of speech of described PTT client.
Described PTT conversation realization system based on the VOIP technology, wherein, described PTT client and ptt server are the portable terminal with VOIP function, and described PTT client is a plurality of, and described ptt server is one.
PTT call implementing method and realization system based on the VOIP technology provided by the present invention, carry out the head expansion by the RTP VoP that the PTT client is sent, the data source identification of current talking is set at an expansion, so that ptt server goes out the competence of speech of PTT client according to the current data source identification ruling of passing through, the RTP VoP that the PTT client that will have a say sends sends to third party PTT client with the multicast form, realizes grouping busy function.And the implementation of the RTP VoP being carried out the head expansion is fairly simple, is easy to realize, only can make ptt server make correct ruling by a data source identification, is convenient to design and the popularization of system.
Description of drawings
Fig. 1 is the structural representation of the PTT conversation realization system based on the VOIP technology provided by the invention.
Fig. 2 is the flow chart of the PTT call implementing method based on the VOIP technology provided by the invention.
Fig. 3 is the method flow diagram that the competence of speech of PTT client is carried out ruling based on ptt server in the PTT call implementing method of VOIP technology provided by the invention.
Fig. 4 is the method flow diagram that the competence of speech of PTT client is carried out ruling based on ptt server in the PTT call implementing method of VOIP technology provided by the invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, clear and definite, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The invention provides a kind of PTT call implementing method based on the VOIP technology and realization system, as shown in Figure 1, described system comprises several PTT clients and a ptt server, PTT client and ptt server are the conversation with VOIP(Internet-based) portable terminal of function, the PTT client can be the mobile phone that the user uses, be used for the user and carry out the PTT conversation, and in order to improve data processing rate, ptt server can be computer, is used for phonetic incepting and multicast and which PTT client of ruling and has the right to speak.
This system realizes by software, each PTT client is by the RTP(RTP) carry out transfer of data with ptt server, ptt server carries out ruling to the RTP VoP that the PTT client sends, judge the competence of speech of PTT client according to the data source identification in the RTP VoP, and according to the competence of speech of PTT client, issue this RTP VoP with the multicast form to third party PTT client.
Particularly, described PTT client is used for the RTP VoP is carried out the head expansion, after the RTP of RTP VoP gland, increase an expansion, and the data source identification of a current talking is set at an expansion, then the RTP VoP after the head expansion is sent to described ptt server; Wherein, the data source identification of this current conversation is used for the competence of speech of sign PTT client current talking, the value of the data source identification by this current conversation, and ptt server can be judged the competence of speech of PTT client.
RTP VoP after described ptt server is expanded for the head that receives described PTT client transmission, and obtain the data source identification of described current talking, judge the competence of speech of described PTT client by the data source identification of described current talking, and make the operation that whether the RTP VoP is sent to third party PTT client in the mode of multicast according to the competence of speech of described PTT client.
In conjunction with the PTT conversation realization system based on the VOIP technology that the invention described above provides, the present invention also provides a kind of PTT call implementing method based on the VOIP technology, as shown in Figure 2, may further comprise the steps:
Step S100, the PTT client by having the VOIP function are carried out the head expansion to sent the RTP VoP, the data source identification of one current talking is set at an expansion, and the RTP VoP after the head expansion is sent to the ptt server with VOIP function;
Step S200, described ptt server read the data source identification of the current talking in the RTP VoP after the described head expansion, and judge the competence of speech of described PTT client according to the residing interval range of value of the data source identification of described current talking;
Step S300, when judging that described PTT client has a say, the RTP VoP of described ptt server after with described head expansion sends to third party PTT client with the multicast form.
Below in conjunction with specific embodiment above-mentioned steps is described in detail.
In actual communication process, a plurality of PTT clients can send the RTP VoP by Real-time Transport Protocol to ptt server simultaneously, ptt server can carry out ruling to each RTP VoP that receives, which PTT client of ruling has right to speak, and the RTP VoP of the PTT client that will have a say sends to third party PTT client with the multicast form, thereby realizes grouping busy function.
For the ease of ptt server the PTT client is made correct ruling, the PTT client is carried out the head expansion to sent the RTP VoP, and the form of RTP gland is as follows:
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| V=2|P|X| CC | M| PT | sequence number |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -+-+-+-+-+-+-+
| timestamp |
-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| data source identification |
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
| contribution data source sign | | .... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Wherein, data source identification is used for identifying different data sources, and each data source has a data source identification, and has data source to set.X represents the extended bit position, if X puts 1, then representing has an expansion after the gland.And the form of an expansion is:
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| definition format | length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| the head expansion |
| .... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Wherein, an expansion comprises the length field of 16 bits, the number of 32 bit words in the indication extension item.Only allowing stature expansion after the RTP gland. front 16 bits of extension are in order to identification marking symbol or parameter. and the form of this 16 bit does not illustrate in RTP, but is defined by the upper-layer protocol of specific implementation.Because PTT does not need to use these 16, therefore these 16 are all set to 0.
Therefore, the present invention is with the extended bit position 1 of RTP gland in the RTP VoP to be sent, for the RTP gland increases an expansion.Wherein, the form of PTT expansion is:
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| length（1） |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| the data source identification of current talking |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Wherein, front 16 all set to 0, and length is 1, and expression has only increased the data source identification of current talking, and the data source identification of current talking is 4 bytes, represents the current data source identification of holding right to speak, that is to say to identify the PTT client of holding right to speak.If there is not the PTT client to obtain right to speak, then the data source identification of current talking all sets to 0.
The present invention is to the expansion of RTP, and main the data source identification of this current conversation is set by the PTT client, and is unique exactly in order to increase the data source identification of a current talking, and ptt server accordingly which PTT client of ruling is had a say.
During RTP VoP after ptt server receives the carrying out head expansion that the PTT client sends, read the data source identification of the current talking of an expansion in the RTP VoP, then judge the competence of speech of described PTT client according to the residing interval range of value of the data source identification of current talking.
As can be seen from the table shown in Figure 3, when the value of the data source identification of described current talking was 0x1, described PTT client had speech and seizes power; When the value of the data source identification of described current talking was in interval 0x2-0xFFFFFF, described PTT client not speech was seized power, and applies for obtaining the floor when PTT client in no third side is made a speech; When the value of the data source identification of described current talking was in interval 0x1000000-0xFFFFFFFF, described PTT client did not have right to speak.
Ptt server operates accordingly according to the competence of speech of PTT client.If have a say then the RTP VoP that the PTT client sends is sent to third party PTT client with the multicast form, third party PTT client can be listened to by the RTP VoP dialog context of this PTT client, has well realized grouping busy function.。
Certainly, ptt server can judge whether include speech data in the RTP VoP after receiving the RTP VoP.If there is not speech data, judge that then this PTT client abandons current right to speak; And if speech data is arranged, then distinguish user class by the data source identification of current talking, thereby carry out the ruling of right to speak.
As shown in Figure 4, to carry out the concrete steps of ruling as follows for ptt server:
S11, whether receive the RTP VoP; If so, execution in step S12, otherwise continue to judge whether to receive the RTP VoP;
In S12, the RTP VoP whether speech data is arranged; If so, execution in step S14, otherwise execution in step S13;
S13, abandon right to speak, and return step S11;
S14, according to the value of the data source identification of current talking, judge the competence of speech of PTT client;
If the value of the data source identification of S15 current talking is 0x1, then the PTT client is super spokesman, and execution in step S16;
S16, obtain the floor, and return step S11;
If the value of the data source identification of S17 current talking is in interval 0x2-0xFFFFFF, then the PTT client is the spokesman, and execution in step S18;
S18, currently whether the PTT client is arranged in speech, if execution in step S20, otherwise execution in step S16;
If the value of the data source identification of S19 current talking is in interval 0x1000000-0xFFFFFFFF, then the PTT client is the hearer, and execution in step S20;
S20, do not have right to speak, and return step S11.
The present invention carries out the head expansion by the RTP VoP that the PTT client is sent, the data source identification of current talking is set at an expansion, so that ptt server goes out the competence of speech of PTT client according to the current data source identification ruling of passing through, the RTP VoP that the PTT client that will have a say sends sends to third party PTT client with the multicast form, realizes grouping busy function.And the implementation of the RTP VoP being carried out the head expansion is fairly simple, is easy to realize, only can make ptt server make correct ruling by a data source identification, is convenient to design and the popularization of system.
Should be understood that, application of the present invention is not limited to above-mentioned giving an example, and for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection range of claims of the present invention.
Claims (8)
1. the PTT call implementing method based on the VOIP technology is characterized in that, may further comprise the steps:
A, the PTT client by having the VOIP function are carried out the head expansion to sent the RTP VoP, the data source identification of one current talking is set at an expansion, and the RTP VoP after the head expansion is sent to the ptt server with VOIP function;
B, described ptt server read the data source identification of the current talking in the RTP VoP after the described head expansion, and judge the competence of speech of described PTT client according to the residing interval range of value of the data source identification of described current talking;
C, when judging that described PTT client has a say, the RTP VoP of described ptt server after with described head expansion sends to third party PTT client with the multicast form.
2. the PTT call implementing method based on the VOIP technology according to claim 1 is characterized in that, described steps A comprises:
Described PTT client is with the extended bit position 1 of RTP gland in the RTP VoP to be sent, for the RTP gland increases described expansion.
3. the PTT call implementing method based on the VOIP technology according to claim 1 is characterized in that, described step B also comprises:
When the value of the data source identification of described current talking was 0x1, described PTT client had speech and seizes power;
When the value of the data source identification of described current talking was in interval 0x2-0xFFFFFF, described PTT client not speech was seized power, and applies for obtaining the floor when PTT client in no third side is made a speech;
When the value of the data source identification of described current talking was in interval 0x1000000-0xFFFFFFFF, described PTT client did not have right to speak.
4. the PTT call implementing method based on the VOIP technology according to claim 1 is characterized in that, described step B also comprises:
When described ptt server receives RTP VoP after the described head expansion, judge in the RTP VoP after described head is expanded whether speech data is arranged;
Judge that when not having speech data in the RTP VoP after the described head expansion this PTT client abandons right to speak, otherwise the residing interval range of value of the data source identification by described current talking is judged the competence of speech of described PTT client.
5. the PTT call implementing method based on the VOIP technology according to claim 1, it is characterized in that, the data source identification unique identification one PTT client of the current talking in the described steps A is used for the competence of speech that described ptt server is judged described PTT client accordingly.
6. the PTT call implementing method based on the VOIP technology according to claim 5 is characterized in that, the data source identification length of described current talking is 4 bytes.
7. the PTT conversation realization system based on the VOIP technology is characterized in that, comprises PTT client and ptt server with VOIP function, wherein,
Described PTT client is used for the RTP VoP is carried out the head expansion, and the data source identification of a current talking is set at an expansion, and the RTP VoP after the head expansion is sent to described ptt server;
RTP VoP after described ptt server is expanded for the head that receives described PTT client transmission, and obtain the data source identification of described current talking, judge the competence of speech of described PTT client by the data source identification of described current talking, and make the operation that whether the RTP VoP is sent to third party PTT client with the multicast form according to the competence of speech of described PTT client.
8. the PTT conversation realization system based on the VOIP technology according to claim 7 is characterized in that, described PTT client and ptt server are the portable terminal with VOIP function, and described PTT client is a plurality of, and described ptt server is one.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103435190A CN102916939A (en) | 2012-09-17 | 2012-09-17 | Implementation method and implementation system of PTT (push-to-talk) call based on VOIP (voice over internet protocol) technology |
| PCT/CN2013/077159 WO2014040433A1 (en) | 2012-09-17 | 2013-06-13 | Implementation method and implementation system for ptt call based on voip technology |
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| CN2012103435190A CN102916939A (en) | 2012-09-17 | 2012-09-17 | Implementation method and implementation system of PTT (push-to-talk) call based on VOIP (voice over internet protocol) technology |
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| WO2014040433A1 (en) | 2014-03-20 |
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Application publication date: 20130206 |