CN101111010B - Method for implementing voice transmission in integrated digital enhanced network - Google Patents

Method for implementing voice transmission in integrated digital enhanced network Download PDF

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Publication number
CN101111010B
CN101111010B CN2007101414061A CN200710141406A CN101111010B CN 101111010 B CN101111010 B CN 101111010B CN 2007101414061 A CN2007101414061 A CN 2007101414061A CN 200710141406 A CN200710141406 A CN 200710141406A CN 101111010 B CN101111010 B CN 101111010B
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China
Prior art keywords
voice
pds
link
voice link
flow
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CN2007101414061A
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CN101111010A (en
Inventor
顾燕娟
翟浩杰
王芳
朱进磊
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Caltta Technologies Co ltd
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ZTE Corp
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Priority to CN2007101414061A priority Critical patent/CN101111010B/en
Priority to PCT/CN2007/003652 priority patent/WO2009021373A1/en
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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
    • H04W4/12—Messaging; Mailboxes; Announcements
    • 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

Abstract

The present invention provides a realizing method of the voice transferring in the digital clustering system, which is applied in the mobile communication field. The present invention adopts the method that the voice link is separately design, the voice link is realized with a plurality of protocols and mutual conversion can be performed during the protocols, to realize that the voice of the caller in the clustering calling flows to all the members in the group, and to guarantee that each member in the group can hear the voice of the caller; simultaneously because the method of the separate design of the voice link is adopted, the system resource is saved, and the transmission efficiency is enhanced; the voice link is realized with a plurality of protocols, the application scope is greatly expanded, and the voice data in the voice link is guaranteed to be clear, and the communication quality and efficiency can be improved.

Description

The implementation method that voice are transmitted in a kind of digital cluster system
Technical field
The present invention relates to moving communicating field, relate in particular to the implementation method that voice are transmitted in a kind of digital cluster system.
Background technology
Trunked communication system is the multipurpose of a kind of shared resource, contribution, shared channel equipment and service, dynamical wireless dispatching communication system.It can provide between the group user one to one or the quick voice of one-to-many connect, semiduplex working method is provided, it allows a large number of users (talk group) to share less relatively communication link, come the sharing problem of supervisory communications link by system, the selection of channel and to divide the pairing user all be transparent.
With traditional voice service all is that One-to-one communication is different mostly, and group service can realize that the speech of one-to-many connects.When using the group service of one-to-many, can pre-defined one group of user, make a call, successfully set up a group after, the current speech information of speaking the user of system will be transmitted, and can converse to guarantee other users of trunked call the inside.
But in present digital cluster system, when the inherent realization of cluster voice were transmitted, voice link is separately design, has wasted system resource, has reduced efficiency of transmission; Simultaneously the agreement that adopts of voice link is single, causes that the scope of application is limited, speech data mixes on the communication shared link, influences speech quality and efficient.
Summary of the invention
The technical problem to be solved in the present invention provides the implementation method that voice are transmitted in a kind of digital cluster system, and system resource waste is serious in the solution prior art, and efficiency of transmission is low, and the scope of application is limited, the problem that speech quality is not high.
Technical scheme main feature of the present invention is:
When cluster user made a call, setting up voice link and sending voice by its data feedback channel was trunking dispatch server to PDS;
When different cluster users were on same link, PDS transmitted voice by the down going channel of voice link and gives the user according to the voice link sign that voice flow carries;
When cluster user not on same link, the voice link sign that PDS carries according to voice flow by the conversion of agreement between the different phonetic link, is transmitted user speech by the down going channel of voice link.
Further, in the present invention, non-roaming user makes a call, and carries out voice and transmits, and may further comprise the steps:
Step 1, non-roaming user makes a call, and sets up voice link;
Step 2, non-roaming user sends talk request to PDS, and PDS carries out the right of speech arbitration process, if arbitrate successfully, then PDS sends right of speech to the user and authorizes signaling, execution in step three, on the contrary then the user asks failure, and flow process finishes;
Step 3, the non-roaming user data feedback channel of voice by voice link of will talking sends to PDS;
Step 4, the voice link sign that PDS carries according to its voice flow is connected list item with group, and the down going channel by voice link carries out the voice forwarding.
Further, in the present invention, the roamer makes a call, and carries out voice and transmits, and may further comprise the steps:
Step 1, the roamer initiates the right of speech request to roaming place PDS, and roaming place PDS is transmitted to ownership place PDS with it;
Step 2, ownership place PDS carries out the right of speech arbitration process, if arbitrate successfully, then ownership place PDS sends the right of speech authorization signaling for roaming place PDS, after roaming place PDS receives it is transmitted to the roamer;
Step 3, the roamer's data feedback channel of voice by voice link of will talking sends to roaming place PDS;
Step 4, the voice link sign that roaming place PDS carries according to its voice flow is connected list item with group, and the down going channel by voice link carries out the voice forwarding; Simultaneously, roaming place PDS transmits roamer's voice flow by the data feedback channel of voice link to ownership place PDS;
Step 5, the voice link sign that ownership place PDS carries according to voice flow is connected list item with group, and the down going channel by voice link carries out the voice forwarding.
Further, said method also has following characteristics: when cluster user makes a call, set up voice link and be meant: PDS set up voice link and with all information stores of voice link in group of the system connection table of PDS.
Further, the group of system that said method also has following characteristics: PDS connects the voice link information of preserving in the table, comprising: link attribute, link circuit condition, forwarding attribute.
Further, the voice link that said method also has following characteristics: PDS foundation comprises that three classes: PDS and PDC are the voice link between the cluster client end, is used for PDS and transmits voice to base station sub-system and terminal subsystem; PDS and DAC are the voice link between the dispatching desk client, are used for PDS and transmit voice to DAC; Voice link between PDS and the PDS is used for transmitting voice between ownership place PDS and the roaming place PDS.
Further, said method also has following characteristics: the portable terminal below the same PDC is shared a voice link, and this voice link is two-way, and it comprises a data feedback channel and a down going channel; Data feedback channel is responsible for sending voice flow to PDS, and down going channel is responsible for receiving the voice flow that PDS issues; Sending voice flow to PDS realizes by PDC with the voice flow that the responsible PDS of reception issues.
Further, said method also has following characteristics: voice link adopts various protocols realization and PDS to finish the conversion of the agreement of various voice links.
The present invention has realized that speaker voice flow all members in group transmit in the trunked call, and each member can hear the voice of speaker in the assurance group.Simultaneously, voice link adopts the separately method of design, has saved system resource, has improved efficiency of transmission; Simultaneously, voice link can use various protocols to realize, the scope of application expand greatly and link on speech data clear, improved speech quality and efficient.
Description of drawings
Fig. 1 is the network structure of the digital clustering communication system used of the present invention;
Fig. 2 is voice flow forwarding process figure when the user talks in the non-roaming trunked call of the present invention;
Fig. 3 is that the present invention roams voice flow forwarding process figure when the roaming place user talks in the trunked call.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail.
As shown in Figure 1, be the typical digital cluster system network structure of correspondence of the present invention, each part is described as follows:
1, MS (Mobile Station, terminal): possess the terminal equipment of PTT (Push To Talk, PoC) group service function, also possess multiple business abilities such as interconnect call business, Packet data service, short message service simultaneously.
2, BTS (Base Transceiver Station, base station transceiver): the equipment that transmits and receives wireless signal.
3, BSC (Base Station Controller, base station controller): finish the access function of terminal, and use type of service to distribute corresponding subsystem processes according to the user.
4, PDC (PTT Dispatch Client, the PTT dispatching client): the dispatching client that is group system, processing terminal backward signaling and PTT speech business stream compiled on reverse link is handled the forward direction signaling of PDS on the forward link and PTT speech business stream is distributed.
5, PDS (PTT Dispatch Server, the PTT dispatch server): the trunking dispatch server that is group system, be responsible for PTT call establishment, release and scheduling, receive the PTT voice packet of reverse link simultaneously, and being distributed to forward link, all operations that relates among the present invention all is to be finished by the business module on the PDS.
6, PHR (PTT Home Register, PTT cluster authentication server): PTT group registration, group member registration are provided, finish functions such as PTT calling authorization, mandate and charging simultaneously.
7, DAS (Dispatching Agent Server, dispatching desk server): DAC is linked into the acting server of group system, transmits functions such as control for the access of DAC client provides rights management, agency.
8, DAC (Despatching Agent Client, dispatching desk client): offer the operated client of cluster user, the difference according to the user logins status is divided into dispatching desk and turnkey console.
Wherein PDS is the core network element of PTT scheduler subsystem, finish operations such as calling out control, subscriber paging, voice forwarding, also set up in addition and safeguard that current all voice that are in state of activation group transmit (being referred to as group of system connection table), each Active Set groupcall is to a record in should voice transmitting (group that is referred to as this group connects list item), it has preserved all voice link information that this activation group is comprised, and comprises link attribute, link circuit condition, forwarding attribute etc.PDS finds correct group earlier and connects list item (promptly group of pairing system of this activation group connects a record in the table) when transmitting the voice of trunked call, then according to its all voice link information that comprise, carries out the voice forwarding and handles.
From the communication network element that voice link connects, voice link can be divided into three classes: the voice link between (1) PDS and the PDC is used for PDS and transmits voice to base station sub-system and terminal subsystem; (2) voice link between PDS and the DAC is used for PDS and transmits voice to the dispatching desk client; (3) voice link between PDS and the PDS is used for transmitting voice between ownership place PDS and the roaming place PDS.Article one, group connects list item and can comprise a class or a few class in the above-mentioned three class voice links.
Fig. 2 and Fig. 3 describe the handling process that voice are transmitted in this group system in detail, for convenience of description, suppose that here member MS-1 and member MS-3 are under same PDC-1 after the trunked call foundation, and MS-2 are under another PDC-2.
Fig. 2 is the forwarding process of voice flow when the user talks in the non-roaming trunked call of the present invention, and concrete steps are described as follows:
Step 201, MS-1 initiates talk request, and the on-site PDC-1 of MS-1 is transmitted to PDS to the right of speech demand signalling of MS-1;
Step 202, PDS carries out the right of speech arbitration process, if current system allows the MS-1 speech, authorize the signaling loopback with the right of speech of MS-1 and give PDC-1, PDC-1 is transmitted to MS-1 again, and MS-1 receives that right of speech is authorized and replys right to speak in its acquisition group of denoting signaling, can begin speech;
Step 203, terminal is given the PDC-1 at its place with the MS-1 voice of talking, and PDC-1 is transmitted to PDS to its voice flow;
Step 204, PDS receives after the voice, according to the voice link sign that the voice flow of MS-1 carries, finds among the PDS link information that should voice link, and then finds group that should trunked call is connected list item.PDS judges whether the current voice of receiving are voice of the current speaker MS-1 of group earlier, if not, then abandon this voice flow, otherwise traversal group connects all voice links of list item table the inside record, and carry out the voice forwarding according to the attribute of these voice links;
When traversing MS-1 and MS-3 when sharing voice link (being the voice link of setting up for this trunked call between PDS and the PDC-1), PDS is to the voice flow of the MS-3 forwarding current speaker MS-1 of group, and so far MS-3 can hear the voice of MS-1; Here the speech voice of MS-1 are that data feedback channel by this voice link sends to PDS, and the PDS down going channel by this voice link again is transmitted to MS-3 with the voice flow of MS-1;
When PDS traversed the voice link of setting up for this trunked call between PDS and the PDC-2, PDS transmitted the voice flow of the current speaker MS-1 of group to MS-2 by the down going channel of this voice link;
When PDS traversed the voice link of setting up for this trunked call between PDS and the DAC, PDS transmitted the voice flow of the current speaker MS-1 of group to DAC by the down going channel of this voice link.
In addition, consider that voice link can use various protocols to realize, therefore when having multiple voice link in the trunked call, just need carry out necessary voice flow conversion, in native system, can allow PDS finish such conversion according to the attribute of different phonetic link.For example, it is generic route encapsulation that voice link between PDS and the PDC adopts the GRE encapsulation, and the employing of the voice link between PDS and DAC RTP encapsulation is the real-time protocol (RTP) encapsulation, and then PDS just must convert the voice flow of GRE encapsulation to RTP in step (204), and then is issued to DAC.
Fig. 3 is the forwarding process that the present invention roams voice flow when the roaming place user talks in the trunked call, and concrete steps are described as follows:
Step 301, roaming place MS-1 initiates the right of speech request, the on-site PDC-1 of MS-1 issues corresponding roaming place PDS to the right of speech request, because roaming place PDS can't organize interior right of speech arbitration process, so roaming place PDS is transmitted to ownership place PDS with this right of speech request again;
Step 302, ownership place PDS carries out the right of speech arbitration process, if current system allows the MS-1 speech, then ownership place PDS sends the right of speech authorization signaling of MS-1 for roaming place PDS, after receiving, roaming place PDS is transmitted to this right of speech authorization signaling of MS-1 again, MS-1 receives that right of speech is authorized and replys right to speak in its acquisition group of denoting signaling, can begin speech;
Step 303, terminal is given the PDC-1 at its place with the MS-1 voice of talking, and PDC-1 is transmitted to roaming place PDS to its voice flow;
Step 304, roaming place PDS is according to the voice link sign that the voice flow of MS-1 carries, and finds among the PDS of roaming place link information that should voice link, and then finds group that should trunked call is connected list item; Roaming place PDS judges whether the current voice of receiving are voice of the current speaker MS-1 of group earlier, if not, then abandon this voice flow, otherwise traversal group connects all voice links of list item table the inside record, and carry out the voice forwarding according to the attribute of these voice links; When traversing the voice link of setting up for this trunked call between roaming place PDS and the ownership place PDS, roaming place PDS transmits the voice flow of the current speaker MS-1 of group to ownership place PDS by the data feedback channel of this voice link; When roaming place PDS traversed the voice link of setting up for this trunked call between roaming place PDS and the PDC-1, roaming place PDS transmitted the voice flow of the current speaker MS-1 of group to MS-3 by the down going channel of this voice link;
Step 305, after ownership place PDS receives that roaming place PDS transmits next MS-1 voice flow, according to the voice link sign that the voice flow of MS-1 carries, find among the ownership place PDS link information that should voice link, and then find group that should trunked call is connected list item.Ownership place PDS judges whether the current voice of receiving are voice of the current speaker MS-1 of group earlier, if not, then abandon this voice flow, otherwise traversal group connects all voice links of list item table the inside record, and carry out the voice forwarding according to the attribute of these voice links; When traversing the voice link of setting up for this trunked call between ownership place PDS and the PDC-2, ownership place PDS transmits the voice flow of the current speaker MS-1 of group to MS-2 by the down going channel of this voice link; When Radix Angelicae Sinensis possession PDS traversed the voice link of setting up for this trunked call between ownership place PDS and the DAC, ownership place PDS transmitted the voice flow of the current speaker MS-1 of group to DAC by the down going channel of this voice link.
The present invention has realized that roamer and non-roaming user speaker voice flow all members in group in trunked call transmit, and each member can hear the voice of speaker in the assurance group.Simultaneously, voice link adopts the separately method of design, has saved system resource, has improved efficiency of transmission; Simultaneously, voice link can use various protocols to realize, the scope of application expand greatly and link on speech data clear, improved speech quality and efficient.

Claims (8)

1. the implementation method that voice are transmitted in the digital cluster system is characterized in that,
When cluster user made a call, setting up voice link and sending voice by its data feedback channel was trunking dispatch server to PDS;
When different cluster users were on same link, PDS transmitted voice by the down going channel of voice link and gives the user according to the voice link sign that voice flow carries;
When cluster user not on same link, the voice link sign that PDS carries according to voice flow by the conversion of agreement between the different phonetic link, is transmitted user speech by the down going channel of voice link.
2. method according to claim 1 is characterized in that non-roaming user makes a call, and carries out voice and transmits, and may further comprise the steps:
Step 1, non-roaming user makes a call, and sets up voice link;
Step 2, non-roaming user sends talk request to PDS, and PDS carries out the right of speech arbitration process, if arbitrate successfully, then PDS sends right of speech to the user and authorizes signaling, execution in step three, on the contrary then the user asks failure, and flow process finishes;
Step 3, the non-roaming user data feedback channel of voice by voice link of will talking sends to PDS;
Step 4, the voice link sign that PDS carries according to its voice flow is connected list item with group, and the down going channel by voice link carries out the voice forwarding.
3. method according to claim 1 is characterized in that the roamer makes a call, and carries out voice and transmits, and may further comprise the steps:
Step 1, the roamer initiates the right of speech request to roaming place PDS, and roaming place PDS is transmitted to ownership place PDS with it;
Step 2, ownership place PDS carries out the right of speech arbitration process, if arbitrate successfully, then ownership place PDS sends the right of speech authorization signaling for roaming place PDS, after roaming place PDS receives it is transmitted to the roamer;
Step 3, the roamer's data feedback channel of voice by voice link of will talking sends to roaming place PDS;
Step 4, the voice link sign that roaming place PDS carries according to its voice flow is connected list item with group, and the down going channel by voice link carries out the voice forwarding; Simultaneously, roaming place PDS transmits roamer's voice flow by the data feedback channel of voice link to ownership place PDS;
Step 5, the voice link sign that ownership place PDS carries according to voice flow is connected list item with group, and the down going channel by voice link carries out the voice forwarding.
4. method according to claim 1 is characterized in that, when cluster user makes a call, sets up voice link and is meant: PDS set up voice link and with all information stores of voice link in group of the system connection table of PDS.
5. method according to claim 4 is characterized in that, the group of system of PDS connects the voice link information of preserving in the table, comprising: link attribute, link circuit condition, forwarding attribute.
6. method according to claim 1 is characterized in that, the voice link that PDS sets up comprises that three classes: PDS and PDC are the voice link between the cluster client end, is used for PDS and transmits voice to base station sub-system and terminal subsystem; PDS and DAC are the voice link between the dispatching desk client, are used for PDS and transmit voice to DAC; Voice link between PDS and the PDS is used for transmitting voice between ownership place PDS and the roaming place PDS.
7. method according to claim 6 is characterized in that, the portable terminal below the same PDC is shared a voice link, and this voice link is two-way, and it comprises a data feedback channel and a down going channel; Data feedback channel is responsible for sending voice flow to PDS, and down going channel is responsible for receiving the voice flow that PDS issues; Sending voice flow to PDS realizes by PDC with the voice flow that the responsible PDS of reception issues.
8. method according to claim 7 is characterized in that, voice link adopts various protocols realization and PDS to finish the conversion of the agreement of various voice links.
CN2007101414061A 2007-08-16 2007-08-16 Method for implementing voice transmission in integrated digital enhanced network Expired - Fee Related CN101111010B (en)

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PCT/CN2007/003652 WO2009021373A1 (en) 2007-08-16 2007-12-18 Implement method of voice forward in digital cluster system

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CN110839212A (en) * 2018-08-16 2020-02-25 上海霹迪梯通讯科技有限公司 Communication method of TETRA digital trunking system and related products thereof
CN109672610B (en) * 2018-12-26 2022-01-11 深圳市自然门科技有限公司 Multi-group voice real-time communication method and system
CN110381451B (en) * 2019-07-18 2022-02-11 中国联合网络通信集团有限公司 Method, device and system for establishing group communication by mobile network

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