CN107222849B - Multi-terminal voice speaking right distribution method for broadband cluster system - Google Patents
Multi-terminal voice speaking right distribution method for broadband cluster system Download PDFInfo
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- CN107222849B CN107222849B CN201710400822.2A CN201710400822A CN107222849B CN 107222849 B CN107222849 B CN 107222849B CN 201710400822 A CN201710400822 A CN 201710400822A CN 107222849 B CN107222849 B CN 107222849B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- 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
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- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
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Abstract
The invention provides a multi-terminal voice speaking right distribution method of a broadband trunking system, which is based on a group calling scene of a trunking system of LTE (Long term evolution), supports multiple terminal users to simultaneously obtain voice speaking rights in the same trunking group calling service and simultaneously sends voice data to a group calling, and comprises the steps that a trunking terminal initiates a speaking right application request, if other users obtain the voice speaking rights in the trunking group calling service, the distributable speaking right state of the trunking group calling service at the moment is inquired, and if an idle speaking right position is not distributed at present, a speaking right application receiving response message is sent to the trunking terminal applying the speaking rights, and a special bearing is established; after the special bearing establishing process is completed, the cluster terminal obtains the voice speaking right of the cluster group calling, and the former speaking right user also has the speaking right at the same time. Compared with the existing trunking group calling speech right control flow, the invention can effectively improve the communication efficiency of the trunking voice group calling and reduce the signaling overhead consumed by the trunking voice group calling due to the speech right change.
Description
Technical Field
The invention belongs to the field of wireless communication, and describes a method for supporting a plurality of terminal devices to simultaneously have group calling right in a group calling scene of a cluster system based on LTE.
Background
With the continuous development of communication technology, the cluster broadband system is used as a dispatching command communication system used in the industry field, is widely used by different industries, and is mature to be applied to security, electric power, mines, civil aviation, petrochemical industry, government departments and the like at present. With the maturity of Long Term Evolution (LTE for short), the broadband trunking technology based on Long Term Evolution (LTE) has also become the development direction of the next generation trunking communication system, and the broadband trunking protocol standard based on Long Term Evolution (LTE) is also continuously established and perfected.
In the current broadband trunking protocol standard based on Long Term Evolution (LTE), the trunking group call service is a very important broadband trunking function, and the current group call scenario generally supports a sending mode that only a single terminal user is allowed to have the right to speak at the same time, while in actual trunking voice communication, there are often situations where multiple users need to speak at the same time, and other users who do not have the right to speak and need to speak must perform the right queuing and be granted the right to speak. Such a mode may cause a reduction in communication efficiency and may not fully exploit the bandwidth advantages of Long Term Evolution (LTE) technology. How to fully utilize the bandwidth advantage of the Long Term Evolution (LTE) technology and improve the communication efficiency of the trunking communication is an urgent problem to be solved.
Disclosure of Invention
The invention provides a method for realizing simultaneous speech right possession of multiple terminal users of a broadband trunking system based on a Long Term Evolution (LTE) technology, which solves the problem that the speech right of trunking service is simultaneously distributed to multiple users under the condition of utilizing the network deployment of the existing Long Term Evolution (LTE) technology and the unchanged architecture of the broadband trunking system based on the existing Long Term Evolution (LTE) technology; therefore, the problem that a multi-user terminal in the existing trunking protocol can speak only by continuously rotating the request of speaking right is solved, and the communication efficiency of trunking services is improved.
The invention provides a method for distributing multi-terminal voice speaking right of a broadband trunking system, which supports a plurality of terminal users to simultaneously obtain the voice speaking right in the same trunking group calling service and simultaneously send voice data to a group calling under the group calling scene of the trunking system based on LTE, and comprises the following steps,
1) the trunking terminal initiates a speaking right application request, which comprises sending a voice speaking right application request to a trunking core network when a non-speaking right user in the trunking voice group calling service needs to obtain trunking speaking right,
if no other user occupies the speech right at the moment, distributing the speech right to a speech right applicant, sending a speech right notification signaling to notify the other users that the speech right is in an occupied state, and ending the process;
if other users obtain the voice right in the cluster group calling service, entering the step 2);
2) the cluster core network inquires the assignable speaking right state of the cluster group calling service at the moment,
if the number of the existing speaking right is the maximum number of the speaking right, replying a speaking right queuing message and ending the flow;
if the idle speaking right position is not distributed, sending speaking right application receiving response information to the cluster terminal applying for speaking right, and entering step 3);
3) after receiving the speaking right application receiving response message, the cluster terminal applying for speaking right replies a speaking right application request response confirmation message to the cluster core network;
4) the trunking core network receives a speaking right application request response confirmation message sent by the trunking terminal, and triggers a special bearing establishing process, so that a special bearing is established for the trunking terminal; after the special bearing establishing process is completed, the cluster terminal obtains the voice speaking right of the cluster group calling, and the former speaking right user also has the speaking right at the same time;
5) after the dedicated bearer establishment process is completed, the trunking core network sends a speaking right information updating notification message to all terminals in the trunking group calling range.
After receiving the speaking right application message, the cluster core network side updates and modifies the speaking right state content in the context corresponding to the group calling, including adding a new speaking right application party to the current speaking right owner state.
And after receiving the speaking right application message, the cluster core network side updates and modifies the group calling speaking right context, including modifying the voice speaking right quantity of the current cluster group calling service.
And after receiving the speaking right application message, the cluster core network side modifies the speaking right application terminal context, including modifying the proprietary bearer context.
And the parameter configuration of the maximum voice talk right number of the group calling in the group calling context is added in the cluster core network and is used for judging whether the current group calling voice talk right application exceeds the maximum talk right number configured by the network side.
And when detecting that the number of the speaking right in the calling process of the cluster group calling does not exceed the maximum number of the speaking right, the cluster core network prompts the terminal to have an idle speaking right to apply in the issued speaking right information updating message.
The technical scheme of the invention is mainly improved as follows:
1. based on the original protocol, the multi-terminal user of the broadband trunking system based on the Long Term Evolution (LTE) technology can simultaneously have the speaking right when the trunking voice group calling service is carried out.
2. The function of the existing cluster core network is increased, so that the existing cluster core network has configuration parameters based on the maximum call weight number of the voice group call; the cluster core network side can flexibly configure the number of talk rights for the cluster group call service, and the requirement of more group call scenes is met.
3. The function of judging the speaking right state of the current cluster voice group call service based on the maximum simultaneous speaking right number by the cluster core network is added, so that the function of simultaneously obtaining the speaking right of the voice in the cluster voice group call service by a plurality of cluster terminals is realized. The cluster core network side can carry the idle speech right identification in the speech right information updating message under the condition that the speech right is occupied but does not exceed the maximum configured speech right number, informs the terminal of applying the speech right of the group call service, and optimizes the flow of queuing and waiting for the original speech right user to release the speech.
Compared with the existing trunking group calling speaking right control process, the invention can effectively improve the communication efficiency of the trunking voice group calling, reduce the signaling overhead consumed by the trunking voice group calling due to the change of the speaking right and provide brand new user experience. The technical scheme of the invention is in the leading position in the current world communication industry and has important market value.
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Fig. 1 is a schematic diagram of an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the invention provides a method for simultaneously enabling multiple terminals to have voice speaking right in a group calling scene based on an LTE broadband trunking system, so that multiple terminal users can simultaneously obtain the voice speaking right in the same trunking group calling service and simultaneously send voice data to a group calling. In a broadband trunking system based on a long term evolution technology, a parameter option for configuring the number of voice call rights which can be simultaneously allocated is added to a trunking core network side in advance to configure the number of uplink voice call rights which can exist in a trunking communication service at the same time. That is, the configuration of the maximum number of speech right parameters of group calling in the group calling context is added in the cluster core network, and the configuration is used for judging whether the current group calling speech right application exceeds the maximum number of speech right configured on the network side during specific implementation. The cluster core network supports the function of binding the voice data bearers of a plurality of cluster terminal users to the same group call ID at the same time.
Furthermore, the maximum number of the voice speaking right in the configuration parameters can be flexibly configured according to the actual situation, and all members in the group can be enabled to configure the uplink voice speaking right at the same time to the maximum extent.
Compared with the original broadband cluster core network which only supports a single terminal to have the speaking right at the same time, the cluster core network has the function of simultaneously establishing uplink voice data and a cluster group calling service tunnel for multiple terminals.
Further, when detecting that the number of talk burst in the trunking group call process does not exceed the maximum number of talk burst, the trunking core network may prompt the terminal to have an idle talk burst to apply in the issued talk burst information update message.
Referring to the embodiment shown in fig. 1, in a current network system based on the Long Term Evolution (LTE) broadband trunking protocol standard, when a non-speaking-right user needs to obtain trunking speaking right, the following process is performed:
1) the trunking terminal initiates a speaking right application request: the non-speaking right user sends a voice speaking right application request to the cluster core network when needing to obtain the cluster speaking right, and the request content comprises the voice media content description information of the terminal.
At this time, the non-speaking-right user should be under the trunking voice group call service.
If no other user (cluster terminal) occupies the speaking right at the moment, the speaking right is distributed to the speaking right application party according to the original process, and a speaking right notification signaling is issued to inform other users that the speaking right is in an occupied state, and the process is finished.
However, at this time, other users may have applied for and occupied the current speech right of the trunking group calling, and if the speech right is already occupied by other terminals according to the original traditional speech right distribution flow, the trunking core network cannot distribute speech right to the new user who applies for speech right at this time. The invention proposes that if other terminals obtain the voice right in the trunking group calling service, the non-right-of-speech terminal applies for the right to the trunking core network at the moment and then enters step 2), the trunking core network needs to inquire the voice number of the current group calling, and compares the voice number with the configured maximum voice number to judge whether the non-right-of-speech terminal can carry out the voice right authorization.
2) The cluster core network inquires the assignable speaking right state of the cluster group calling service at the moment:
after receiving the speaking right request, the cluster core network inquires the cluster service, if the existing speaking right number is the maximum speaking right number, then replying the speaking right queuing information, and ending the process.
After receiving the speaking right request, the cluster core network inquires the cluster service, if the idle speaking right position is not distributed at present, the cluster core network can send a speaking right application receiving response message to the speaking right application terminal, and the step 3 is entered, wherein the message carries the cluster group calling identification number and the voice media coding and decoding information.
Furthermore, after receiving the speaking right application message, the trunking core network side updates and modifies the speaking right state content in the context corresponding to the group calling, including adding a new speaking right application party to the current speaking right owner state, and the like.
Furthermore, after receiving the speaking right application message, the cluster core network side updates and modifies the group calling speaking right context, including modifying the voice speaking right quantity of the current cluster group calling service.
Further, after receiving the speaking right application message, the cluster core network side modifies the context of the speaking right application terminal, including modifying the proprietary bearer context.
3) The trunking terminal performs a speaking right application acceptance message confirmation reply: the terminal applying for speaking right replies a speaking right application request response confirmation message to the cluster core network after receiving the speaking right application receiving response message, and confirms that the speaking right application receiving response message sent by the cluster core network is received.
4) Adding a voice data tunnel for the group call service: the trunking core network receives the response confirmation message of the speaking right application request sent by the terminal, triggers the process of establishing a special bearer, establishes the special bearer for the terminal, and interacts with a Trunking Media Function (TMF) to add an uplink voice tunnel bound with the group calling service. After the special bearing establishing process is completed, the terminal obtains the voice speaking right of the cluster group calling, and the former speaking right user also has the speaking right at the same time.
5) And sending a talk right updating message, and after the establishment flow of the special bearer is completed, the cluster core network sends a talk right information updating notification message (namely the talk right updating message) to all terminals in the cluster group calling range. The message carries the cluster group calling identification number of the latest applied speech right, the network number of the speech right application terminal, the network user name, the group number, the speech right application identification and whether the residual idle speech right identification exists.
And under the condition that the voice call right of the cluster group calling service is updated, the cluster core network sends a call right update notification message to inform the cluster terminal of the current call right state. According to the flow based on LTE broadband trunking system protocol (B-TRUNC), under the condition that a terminal in voice group call service obtains the talk right, if a new terminal applies the talk right to a core network, the core network only allows one terminal to have the talk right at the same time, so that the terminal can only wait until the talk right side terminal releases the talk right and can not grant the talk right. Different from the LTE-based broadband trunking system protocol (B-TRUNC), when the existing terminal of the voice group call service obtains the talk right, but the talk right number does not exceed the maximum talk right number configured by the trunking core network, the method can still mark the vacant voice talk right position in the talk right updating notification message for application.
In specific implementation, automatic flow operation can be realized by adopting a software mode at the cluster core network side.
The above description is only one example of the present invention and should not be taken as limiting the invention, and any modifications, equivalents, improvements and the like that are made within the principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. A multi-terminal voice speaking right distribution method of a broadband cluster system is characterized in that: the group calling scene of the LTE-based trunking system supports multiple terminal users to simultaneously acquire voice speaking right in the same trunking group calling service and simultaneously send voice data to the group calling, and comprises the following steps,
1) the trunking terminal initiates a speaking right application request, which comprises sending a voice speaking right application request to a trunking core network when a non-speaking right user in the trunking voice group calling service needs to obtain trunking speaking right,
if no other user occupies the speech right at the moment, distributing the speech right to a speech right applicant, sending a speech right notification signaling to notify the other users that the speech right is in an occupied state, and ending the process;
if other users obtain the voice right in the cluster group calling service, entering the step 2);
2) the cluster core network inquires the assignable speaking right state of the cluster group calling service at the moment,
if the number of the existing speaking right is the maximum number of the speaking right, replying a speaking right queuing message and ending the flow;
if the idle speaking right position is not distributed, sending speaking right application receiving response information to the cluster terminal applying for speaking right, and entering step 3);
3) after receiving the speaking right application receiving response message, the cluster terminal applying for speaking right replies a speaking right application request response confirmation message to the cluster core network;
4) the trunking core network receives a speaking right application request response confirmation message sent by the trunking terminal, and triggers a special bearing establishing process, so that a special bearing is established for the trunking terminal; after the special bearing establishing process is completed, the cluster terminal obtains the voice speaking right of the cluster group calling, and the former speaking right user also has the speaking right at the same time;
5) after the dedicated bearer establishment process is completed, the trunking core network sends a speaking right information updating notification message to all terminals in the trunking group calling range.
2. The method for distributing the multi-terminal voice right of speaking in the broadband trunking system of claim 1, wherein: after receiving the speaking right application message, the cluster core network side updates and modifies the speaking right state content in the context corresponding to the group calling, including adding a new speaking right application party to the current speaking right owner state.
3. The method for distributing the multi-terminal voice right of speaking in the broadband trunking system of claim 1, wherein: after receiving the speaking right application message, the cluster core network side updates and modifies the group calling speaking right context, including modifying the voice speaking right quantity of the current cluster group calling service.
4. The method for distributing the multi-terminal voice right of speaking in the broadband trunking system of claim 1, wherein: after receiving the speaking right application message, the cluster core network side modifies the context of the speaking right application terminal, including modifying the proprietary bearer context.
5. The method for distributing the multi-terminal voice right of speaking in broadband trunking system according to claim 1, 2, 3 or 4, wherein: and increasing the parameter configuration of the maximum voice talk right number of the group call in the group call context in the cluster core network, and judging whether the current group call voice talk right application exceeds the maximum talk right number configured by the network side.
6. The method for distributing the multi-terminal voice right of speaking in broadband trunking system according to claim 1, 2, 3 or 4, wherein: when detecting that the number of speaking right in the calling process of the cluster group calling does not exceed the maximum number of speaking right, the cluster core network prompts the terminal to have free speaking right to apply in the issued speaking right information updating message.
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CN108307082B (en) * | 2018-02-07 | 2020-05-15 | 中国信息通信研究院 | Method for realizing IP voice service access |
CN110290479A (en) * | 2018-03-19 | 2019-09-27 | 海能达通信股份有限公司 | The control method and relevant device of right of speech in a kind of MCPTT system |
CN110365702B (en) * | 2019-07-30 | 2022-03-04 | 南京安谱软件有限公司 | Extensible multi-intercom system intercommunication system and method |
CN114710754A (en) * | 2022-03-09 | 2022-07-05 | 海能达通信股份有限公司 | Multi-talk right control method, device and system in offline mode and terminal |
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