CN109756852A - Cluster communication method, server, terminal and computer readable storage medium - Google Patents
Cluster communication method, server, terminal and computer readable storage medium Download PDFInfo
- Publication number
- CN109756852A CN109756852A CN201711066475.0A CN201711066475A CN109756852A CN 109756852 A CN109756852 A CN 109756852A CN 201711066475 A CN201711066475 A CN 201711066475A CN 109756852 A CN109756852 A CN 109756852A
- Authority
- CN
- China
- Prior art keywords
- terminal
- audio mixing
- echo
- downlink data
- bearer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Telephonic Communication Services (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the present invention provides a kind of cluster communication method, server, terminal and computer readable storage medium, the echo that the terminal in trunking conversation group is initiated is received to inhibit to make can request that, when terminal is to say user, the reception bearer types for adjusting the downlink data of terminal are unicast bearer；Voice in trunking conversation group is subjected to stereo process, audio mixing Media Stream is formed, and audio mixing Media Stream is transferred to terminal by the unicast bearer of terminal, wherein audio mixing Media Stream include in addition to terminal itself other at least one say the voice of user.Implementation through the embodiment of the present invention, when terminal request echo inhibits, it initiates echo and inhibits enabled, this is adjusted to unicast to the corresponding downlink of terminal by server, to which so that the voice in trunking conversation group is carried out stereo process again, the audio mixing Media Stream of the voice of the terminal is not contained for the terminal transmission to realize that customized audio medium stream provides possibility, the echo for avoiding the terminal generates, and the user experience is improved.
Description
Technical field
The present invention relates to wireless communication technology field more particularly to a kind of cluster communication method, server, terminal and calculating
Machine readable storage medium storing program for executing.
Background technique
To meet requirement of the public safety to wide-band mobile communication, 3GPP introduces MCPTT (Mission in Release13
Critical Push To Talk, key task push to talk) technology realizes to the branch of public safety communication field voice communication
It holds.MCPTT supports half-duplex call mode and the group seized with right of speech to exhale and individual calling call function.MCPTT Server is based on
GCSE framework, the framework clearly propose to use eMBMS (Multimedia Broadcast Multicast Service, more matchmakers
Body broadcast/multicast service) technical solution as wireless side, eMBMS provides the transfer mechanism of point-to-multipoint, the benefit of Internet resources
With the quantity that will depend on content aggregation, rather than number of users.In this way in the case where number of users is very big, the technology is for section
It saves interface-free resources, evade mobile network's capacity disadvantage with apparent advantage.However, in the MCPTT framework based on eMBMS,
Since the multicast users of same multicast area receive business using identical multicast subframe, network survey, which cannot achieve, says different
Person user sends different voice flows, and all received voice flows of user institute are all consistent, and if a speaker, it can also
To be referred to as user, voice is listened to while speaking, this is that downlink can influence user to uplink echogenicity
Experience.
Summary of the invention
The embodiment of the invention provides a kind of cluster communication method, server, terminal and computer readable storage medium, purports
It is solving in the prior art in the MCPTT framework based on eMBMS, the problem of echo of speaker can not be eliminated, poor user experience.
In order to solve the above-mentioned technical problem, the embodiment of the invention provides a kind of cluster communication method, the cluster communications
Method includes:
The echo that the terminal in trunking conversation group is initiated is received to inhibit to make can request that；
When the terminal is to say user, the reception bearer types for adjusting the downlink data of the terminal are unicast bearer；
Voice in the trunking conversation group is subjected to stereo process, forms audio mixing Media Stream, and by the audio mixing media
Stream is transferred to the terminal by the unicast bearer of the terminal；Wherein, the audio mixing Media Stream includes removing the terminal itself
It is outer other at least one say the voice of user.
In addition, the embodiment of the present invention also provides a kind of cluster communication method, comprising:
Server of the terminal into trunking conversation group initiates echo and inhibits to make can request that；
The reception bearer types of the downlink data of the terminal are adjusted to unicast bearer；
The audio mixing Media Stream of the server transport is received, the audio mixing Media Stream is by the language in the trunking conversation group
Sound carries out stereo process and is formed, and the audio mixing Media Stream include in addition to the terminal itself other at least one say user's
Voice.
In addition, the embodiment of the present invention also provides a kind of server, including first processor, first memory and the first communication
Bus；First communication bus is for realizing the connection communication between the first processor and first memory；Described
One processor is for executing the cluster communication program stored in the first memory, to realize cluster communication method above-mentioned
Step.
In addition, the embodiment of the present invention also provides a kind of terminal, including second processor, second memory and the second communication are always
Line；Second communication bus is for realizing the connection communication between the second processor and second memory；Described second
Processor is for executing the cluster communication program stored in the second memory, to realize the step of cluster communication method above-mentioned
Suddenly.
In addition, the embodiment of the present invention also provides a kind of computer readable storage medium, the computer readable storage medium
It is stored with one or more computer program, before the computer program can be executed by one or more processor to realize
The step of cluster communication method stated.
The beneficial effects of the present invention are:
The embodiment of the invention provides a kind of cluster communication method, server, terminal and computer readable storage mediums, connect
It receives the echo that the terminal in trunking conversation group is initiated to inhibit to make can request that, when terminal is to say user, adjusts the lower line number of terminal
According to reception bearer types be unicast bearer；Voice in trunking conversation group is subjected to stereo process, forms audio mixing Media Stream, and
Audio mixing Media Stream is transferred to terminal by the unicast bearer of terminal, wherein audio mixing Media Stream include in addition to terminal itself other
At least one says the voice of user.Implementation through the embodiment of the present invention is initiated echo and is inhibited when terminal request echo inhibits
Enabled, the bearer types of the downlink data of the terminal are adjusted to unicast bearer by server, thus to realize customized voice
Media Stream provides possibility, so that the voice in trunking conversation group is carried out stereo process again, does not contain for the terminal transmission
The audio mixing Media Stream of the voice of the terminal, the echo for avoiding the terminal generate, and the user experience is improved.
Detailed description of the invention
Fig. 1 is a kind of MCPTT system architecture schematic diagram that various embodiments of the present invention provide；
Fig. 2 is a kind of cluster communication method flow chart that first embodiment of the invention provides；
Fig. 3 is a kind of call schematic diagram for trunking conversation group that first embodiment of the invention provides；
Fig. 4 is a kind of call schematic diagram for trunking conversation group that first embodiment of the invention provides；
Fig. 5 is a kind of cluster communication method flow chart that second embodiment of the invention provides；
Fig. 6 is a kind of cluster communication method signal flow diagram that third embodiment of the invention provides；
Fig. 7 is a kind of cluster communication method signal flow diagram that third embodiment of the invention provides；
Fig. 8 is a kind of cluster communication device composition schematic diagram that fourth embodiment of the invention provides；
Fig. 9 is a kind of cluster communication device composition schematic diagram that fifth embodiment of the invention provides；
Figure 10 is a kind of terminal composition schematic diagram that sixth embodiment of the invention provides；
Figure 11 is a kind of server composition schematic diagram that seventh embodiment of the invention provides.
Specific embodiment
3GPP introduces support of the MCPTT technology realization to the voice communication of public safety communication field in Release13.Separately
On the one hand, in terms of railway communication, FRMCS (Future Railway Mobile Communication System, the following iron
Road mobile communication system) demand to the following railway communication is proposed, including parallel to the multi-user with right of speech control
Pass through the demand of function.
In existing MCPTT group calling, synchronization, which only has a user, can be assigned right of speech (Floor), right of speech user
Also referred to as say that user (talker) can talk, remaining group user is as the speech for listening user (listener) dialogue right user
It is listened to.When right of speech changes, original to say that user becomes listening user, the new user that says is awarded in right of speech, and new says use
The speech at family is listened user to listen in all groups.If the user of speech listens to voice simultaneously, at this moment downlink can be to uplink
Link echogenicity influences the experience of user.Meanwhile it being realized in business progress and enable/going enabled behaviour to what MCPTT echo inhibited
Make, to meet the needs of different user.MCPTT system architecture is as shown in Figure 1.
MCPTT Server is based on GCSE, and (group communication system enabler, group communication system open
With device) framework, which clearly proposes using eMBMS (Multimedia Broadcast Multicast Service, more matchmakers
Body broadcast/multicast service) technical solution as wireless side, eMBMS provides the transfer mechanism of point-to-multipoint, the benefit of Internet resources
With the quantity that will depend on content aggregation, rather than number of users.In this way in the case where number of users is very big, the technology is for section
It saves interface-free resources, evade mobile network's capacity disadvantage with apparent advantage.
Various embodiments of the present invention are illustrated with reference to the accompanying drawing.
First embodiment
Referring to FIG. 2, Fig. 2 is a kind of cluster communication method flow chart that first embodiment of the invention provides, comprising:
S201, the echo for receiving the terminal initiation in trunking conversation group inhibit to make can request that；
S202, terminal be say user when, adjust the downlink data of terminal reception bearer types be unicast bearer；
S203, the voice in trunking conversation group is subjected to stereo process, forms audio mixing Media Stream, and audio mixing media are circulated
The unicast bearer for crossing terminal is transferred to terminal；Wherein, audio mixing Media Stream include in addition to terminal itself other at least one say user
Voice.
E-MBMS framework be enhance broadcast, define enhancing broadcast bearer type, this bearer types between broadcast and
Between multicast, absorb that process in broadcast is simple and multicast in resource optimization the advantages of.When using MBMS multicast bear, Yong Hutong
It crosses to send in unicast bearer and message is added to initiate business, and obtain server-side from server-side by the way of multicast and transmitted
Information, in other words, for terminal, the bearer types of upstream data are always unicast, and in e-MBMS framework, under
The bearer types of row data are then multicast.The benefit of multicast carrying is that server can be to the user in all trunking conversation groups
Same audio medium stream is sent, by same frequency range, can effectively be economized on resources.
In S201, receives the echo that the terminal in trunking conversation group is initiated and inhibit to make can request that.Wherein, echo inhibits, or
Person says that the demand for eliminating that echo is terminal side, terminal can choose whether to need to carry out echo according to the real experiences of oneself
It eliminates.If the spontaneous desired inhibition terminal echo suppressor of terminal user, firstly, terminal should server into trunking conversation group
Echo is sent to inhibit to make can request that.Server knows terminal user's needs after receiving the echo and inhibiting to make can request that
The echo of the user is eliminated, to start subsequent operation.
Echo inhibits to make can request that, that is, the echo of server end is made to inhibit function effective, and this effective process
It at least can be targetedly, that is, for echo is initiated inhibit that the terminal that can request that is made to enable echo inhibition function, without
Other terminals are had an impact, other terminals are carried out still according to talking mode before.
In S202, when terminal is to say user, the reception bearer types for adjusting the downlink data of terminal are unicast bearer.By
It is in the received downlink data of terminal institute in echo, the content of the upstream data containing terminal itself, that is, terminal receive
Audio medium stream in containing oneself Media Stream when can just generate, then, just having when terminal has voice generation can
Echo can occur, in other words, only when the terminal is to say user, be likely to progress echo cancellor is for listening user
It will not be reflective.Wherein, it says that user indicates that the terminal has right of speech, and user is listened to indicate that terminal does not have right of speech and is only capable of receiving
The voice for listening other to say that user is issued.Voice can also equally be listened to by saying user, and it is normal for, it is all to say user and listen use
The voice that family is listened under eMBMS framework is all consistent, and is all each audio medium stream said after user's audio mixing.It please join
Fig. 3 is examined, Fig. 3 shows the voice flow diagram for there are multiple terminals in trunking conversation group.
When determining terminal is to say user, need for the terminal to be distinguished from the multicast under eMBMS framework.Because
The multicasting characteristics of eMBMS framework, it is determined that the voice that all terminals receive all is consistent, and for having initiated echo inhibition
It is the sound for being unable to uppick terminal oneself for making the terminal that can request that, multicast is unable to satisfy this requirement.Therefore, it needs
The reception bearer types of the downlink data of the terminal are subjected to certain adjustment, at least guarantee connecing for the downlink data of the terminal
Receipts bearer types are unicast bearer.It is one-to-one exchange, server hair that unicast bearer, which is meant that between server and terminal,
The downlink data for giving the terminal does not need consistent with other terminals, and certainly, this can occupy other nets to a certain extent
Network resource, because the resource of all terminals is consistent under the framework of multicast.
Echo can be held in inhibiting to make to can request that with the reception bearer types of the downlink data of carried terminal, that is, unicast
It carries or multicast carries one of the two；Usually, request echo inhibits connecing for the downlink data for making the terminal that can request that
Receiving bearer types mostly is multicast carrying.It is carried if it is multicast, then can carry corresponding multicast service mark TMGI (group mark
Know) and MCPTT Group ID (identity of key task push to talk group), MCPTT ID (key person's push to talk identity
Mark) etc. information.And the reception bearer types for adjusting the downlink data of terminal are unicast bearer, can specifically include: working as end
When the reception bearer types of the downlink data at end are that multicast carries, the unicast bearer between terminal is established；It notifies under terminal
The reception bearer types of row data switch to unicast bearer from multicast carrying.Terminal is determined in inhibit to make to can request that from echo
Downlink data bearer types be multicast carry when, then need the bearer types by corresponding downlink data to be adjusted to unicast and hold
It carries；And if from echo inhibit to make to can request that in determine terminal downlink data bearer types be unicast bearer after,
It does not need then to be adjusted the bearer types of the downlink data of terminal, keeps unicast bearer.After the handover, then it will cut
The result changed informs corresponding terminal, indicates that the bearer types of downlink data have been switched to unicast bearer by server.
In S203, the voice in trunking conversation group is subjected to stereo process, forms audio mixing Media Stream.Stereo process is service
After device receives the voice in the upstream data of each terminal by unicast fashion, each terminal is sent respectively to each end again
A kind of processing means at end.For the stereo process under multicast framework, each voice for saying user is exactly subjected to audio mixing, then
All terminals being sent in trunking conversation group.All terminals are all one by the voice that server receives under multicast framework
The audio mixing of cause.And some terminal have sent echo inhibit make can request that after, server connects the downlink data of the terminal
Bearer types adjustment is received for unicast bearer, then the received audio mixing of terminal institute can be different from other terminals.And it sends
To the audio mixing Media Stream of the terminal, should at least meet the following conditions: audio mixing Media Stream include in addition to terminal itself other at least one
A voice for saying user, that is to say, that do not include the voice of terminal itself.The audio mixing Media Stream for being sent to the terminal does not include end
If the voice for holding itself, then same content would not occur in the upstream data and downlink data of terminal, that is, eliminate
The echo of the upstream data of terminal.Referring to FIG. 4, Fig. 4 is shown in trunking conversation group after the echo cancellor of certain terminal
The transmission schematic diagram of Media Stream.
Specifically, the voice in trunking conversation group is carried out stereo process, forming audio mixing Media Stream may include: to determine eventually
Hold corresponding audio mixing strategy；The voice in trunking conversation group is subjected to stereo process according to audio mixing strategy, forms audio mixing Media Stream.
Terminal can propose that the audio mixing strategy of oneself or server can formulate corresponding audio mixing plan according to the concrete condition of terminal
Slightly.Science, a kind of simple audio mixing strategy is then that will carry out stereo process in addition to all voices for saying user of the terminal.
In general, the sound in trunking conversation group all says that user is issued, and avoiding the way of echo is exactly to make the terminal
The voice of oneself is not received, then, other other than the terminal are directly said that the voice of user carries out stereo process, are obtained
Audio mixing Media Stream can serve as the downlink data for being transferred to the terminal, and eliminate the echo of the terminal.It is, of course, also possible to logical
Other audio mixing strategies are crossed to carry out stereo process, for example say that selected section user carries out stereo process in user from other, also
Audio mixing can be adjusted in real time when other listen user to be changed into user.
In addition, it is optional, after audio mixing Media Stream is transferred to terminal by the unicast bearer of terminal, it can also wrap
It includes: receiving the echo that terminal is initiated and inhibit to go to make can request that；When the reception bearer types of the downlink data of terminal are unicast bearer
When, the reception bearer types of the downlink data of terminal are switched to multicast carrying by unicast bearer.When the end for needing echo cancellor
When end does not need to eliminate echo, terminal to server sends echo and inhibits to go to make can request that, indicates that the terminal does not need to eliminate back
Sound, then, the reception bearer types of the downlink data of terminal can be switched to multicast from unicast bearer type again at this time and held
Type is carried, allows the user of the terminal and other terminals to share multicast resource, saves the resource of frequency range.Certainly, terminal can continue to
Keep unicast bearer.
In addition, it is optional, after audio mixing Media Stream is transferred to terminal by the unicast bearer of terminal, it can also wrap
Include: when terminal is switched to and listens user, and the reception bearer types of the downlink data of terminal be unicast bearer when, will be under terminal
The reception bearer types of row data are switched to multicast carrying by unicast bearer.Due to being only need that user has echo cancellor
It asks, when user switches to listen user, also there is no need to echo cancellors, no matter the user presses down either with or without echo is sent at this time
It makes and goes to make can request that, the reception bearer types of the downlink data of the terminal can be switched to multicast carrying by server, allow this
The user of terminal and other terminals share multicast resource, save the resource of frequency range.Certainly, terminal can continue to that unicast is kept to hold
It carries.
In addition, if server handover failure in multicast and unicast, such as system resource deficiency and other reasons, then will cut
The result and reason for changing failure feed back to corresponding terminal.
A kind of cluster communication method is present embodiments provided, the echo that the terminal in trunking conversation group is initiated is received and inhibits to make
It can request that, when terminal is to say user, the reception bearer types for adjusting the downlink data of terminal are unicast bearer；By cluster conversation
Voice in group carries out stereo process, forms audio mixing Media Stream, and audio mixing Media Stream is transferred to by the unicast bearer of terminal
Terminal, wherein audio mixing Media Stream does not include the voice of terminal itself.By the implementation of the present embodiment, when terminal request echo is pressed down
It when processed, initiate echo and inhibits enabled, this is adjusted to unicast to the corresponding downlink of terminal by server, to make by oneself to realize
The audio medium stream of justice provides possibility, so that the voice in trunking conversation group is carried out stereo process again, for terminal biography
The audio mixing Media Stream of the defeated voice without containing the terminal, the echo for avoiding the terminal generate, and the user experience is improved.
Second embodiment
Referring to FIG. 5, Fig. 5 is the cluster communication method refined flow chart that second embodiment of the invention provides.
The server of S501, terminal into trunking conversation group initiates echo and inhibits to make can request that；
S502, the reception bearer types of the downlink data of terminal are adjusted to unicast bearer；
S503, the audio mixing Media Stream for receiving server transport, audio mixing Media Stream are to carry out the voice in trunking conversation group
Stereo process is formed, and audio mixing Media Stream include in addition to terminal itself other at least one say the voice of user.
Echo inhibits, and eliminates the demand that echo is terminal side in other words, and terminal can be selected according to the real experiences of oneself
Whether need to carry out the elimination of echo.If the spontaneous desired inhibition terminal echo suppressor of terminal user, firstly, terminal should be to collection
Server in group phone group sends echo and inhibits to make can request that.Server receive the echo inhibit make can request that after,
Know that the terminal user needs to eliminate the echo of the user, to start subsequent operation.
Echo inhibits to make can request that, that is, the echo of server end is made to inhibit function effective, and this effective process
It at least can be targetedly, that is, for echo is initiated inhibit that the terminal that can request that is made to enable echo inhibition function, without
Other terminals are had an impact, other terminals are carried out still according to talking mode before.
In S502, the reception bearer types of the downlink data of terminal are adjusted to unicast bearer.Since echo is terminal institute
In received downlink data, in the content of the upstream data containing terminal itself, that is, the audio medium stream that receives of terminal
It can just be generated when containing oneself Media Stream, then, it is possible to echo occur when terminal has voice generation, changes speech
It is likely to carry out echo cancellor, for listening user, being will not be reflective only when the terminal is to say user.Its
In, say that user indicates that the terminal has right of speech, and user is listened to indicate that terminal does not have right of speech and is only capable of listening to other and says user institute
The voice of sending.Voice can also equally be listened to by saying user, and it is normal for, it is all to say user and listen user in eMBMS framework
Lower listened to voice is all consistent, and is all each audio medium stream said after user's audio mixing.
When determining terminal is to say user, need for the terminal to be distinguished from the multicast under eMBMS framework.Because
The multicasting characteristics of eMBMS framework, it is determined that the voice that all terminals receive all is consistent, and for having initiated echo inhibition
It is the sound for being unable to uppick terminal oneself for making the terminal that can request that, multicast is unable to satisfy this requirement.Therefore, it needs
The reception bearer types of the downlink data of the terminal are subjected to certain adjustment, at least guarantee connecing for the downlink data of the terminal
Receipts bearer types are unicast bearer.It is one-to-one exchange, server hair that unicast bearer, which is meant that between server and terminal,
The downlink data for giving the terminal does not need consistent with other terminals, and certainly, this can occupy other nets to a certain extent
Network resource, because the resource of all terminals is consistent under the framework of multicast.
Echo can be held in inhibiting to make to can request that with the reception bearer types of the downlink data of carried terminal, that is, unicast
It carries or multicast carries one of the two；Usually, request echo inhibits connecing for the downlink data for making the terminal that can request that
Receiving bearer types mostly is multicast carrying.
In S503, stereo process be server received by unicast fashion voice in the upstream data of each terminal it
Afterwards, by a kind of processing means for being sent respectively to each terminal again of each terminal.For the stereo process under multicast framework, it is exactly
Each voice for saying user is subjected to audio mixing, all terminals being then sent in trunking conversation group.It is all under multicast framework
Terminal is all consistent audio mixing by the voice that server receives.And echo is had sent in some terminal and inhibits to make to can request that it
Afterwards, server adjusts the reception bearer types of the downlink data of the terminal for unicast bearer, then terminal institute is received
Audio mixing can be different from other terminals.And it is sent to the audio mixing Media Stream of the terminal, it should at least meet the following conditions: not include
The voice of terminal itself.Be sent to the terminal audio mixing Media Stream do not include terminal itself voice if, then terminal is upper
Same content would not occur in row data and downlink data, that is, eliminate the echo of the upstream data of terminal.
In addition, it is optional, it can also include: to be initiated to server after the audio mixing Media Stream for receiving server transport
Echo inhibits to go to make can request that；When the reception bearer types of the downlink data of terminal are unicast bearer, by the lower line number of terminal
According to reception bearer types by unicast bearer be switched to multicast carrying.
In addition, it is optional, it can also include: to be switched in terminal after the audio mixing Media Stream for receiving server transport
When listening user, and the reception bearer types of the downlink data of terminal be unicast bearer when, the reception of the downlink data of terminal is held
It carries type and multicast carrying is switched to by unicast bearer.
A kind of cluster communication method is present embodiments provided, server of the terminal into trunking conversation group is initiated echo and inhibited
It is enabled to require, the reception bearer types of the downlink data of terminal are adjusted to unicast bearer, receive the audio mixing matchmaker of server transport
Body stream, the audio mixing Media Stream are the voice in trunking conversation group to be carried out stereo process to be formed, and audio mixing Media Stream does not include end
Hold the voice of itself.By the implementation of the present embodiment, by the way that the reception bearer types of the downlink data of terminal are adjusted to unicast
Then carrying will carry out stereo process in addition to the voice of the terminal to provide possibility for customized transmission audio mixing Media Stream
Audio mixing media stream is formed to the terminal, eliminates the echo of the terminal, the user experience is improved.
3rd embodiment
Referring to FIG. 6, Fig. 6 is a kind of cluster communication method signal flow diagram that third embodiment of the invention provides, comprising:
S601, terminal initiate echo to task key server MCPTT Server and inhibit to make can request that；The terminal is to say
User terminal；
S602, MCPTT Server inhibit the reception for the downlink data for making the terminal that can request that middle carrying to hold according to echo
Type is carried, the reception bearer types for completing the downlink data of the terminal are carried to the switching of unicast bearer from multicast；
S603, notice words person's control server Floor control server use corresponding audio mixing strategy to the terminal
Carry out audio mixing；Wherein, MCPTT Group ID, MCPTT ID and corresponding audio mixing strategy mark are carried；
S604, other other than the terminal of initiation being said to, the voice of user carries out audio mixing, forms audio mixing Media Stream；This
When, the audio mixing strategy of other terminals is remained unchanged；
S605, the media stream under corresponding audio mixing strategy is given to corresponding terminal；
S606, the echo cancellor for completing the terminal.
Referring to FIG. 7, Fig. 7 is a kind of cluster communication method signal flow diagram that third embodiment of the invention provides, comprising:
S701, terminal initiate echo to MCPTT Server and inhibit to make can request that；
S702, MCPTT Server inhibit the reception for the downlink data for making the terminal that can request that middle carrying to hold according to echo
Type is carried, the switching that the reception bearer types of the downlink data of the terminal are carried from unicast bearer to multicast is completed；
S703, notice Floor control server carry out audio mixing using corresponding audio mixing strategy to the terminal；
S704, the audio mixing Media Stream for initiating the terminal all voices for saying user in trunking conversation group；
S705, the terminal for giving each multicast to carry audio mixing media stream.
Fourth embodiment
Referring to FIG. 8, Fig. 8 is a kind of cluster communication device composition schematic diagram that fourth embodiment of the invention provides, comprising:
Request receiving module 801, the echo for receiving the initiation of the terminal in trunking conversation group inhibit to make can request that；
The first adjustment module 802, for adjusting the reception bearer types of the downlink data of terminal when terminal is to say user
For unicast bearer；
Audio mixing sending module 803, for forming audio mixing Media Stream for the voice progress stereo process in trunking conversation group,
And audio mixing Media Stream is transferred to terminal by the unicast bearer of terminal；Wherein, audio mixing Media Stream include in addition to terminal itself its
He at least one says the voice of user.
Request receiving module 801 is used to receive the echo that the terminal in trunking conversation group is initiated and inhibits to make can request that.Wherein,
Echo inhibits, and eliminates the demand that echo is terminal side in other words, and terminal can choose whether to need according to the real experiences of oneself
Carry out the elimination of echo.If the spontaneous desired inhibition terminal echo suppressor of terminal user, firstly, terminal should be to trunking conversation group
Interior server sends echo and inhibits to make can request that.Server knows the end after receiving the echo and inhibiting to make can request that
End subscriber needs to eliminate the echo of the user, to start subsequent operation.
Echo inhibits to make can request that, that is, the echo of server end is made to inhibit function effective, and this effective process
It at least can be targetedly, that is, for echo is initiated inhibit that the terminal that can request that is made to enable echo inhibition function, without
Other terminals are had an impact, other terminals are carried out still according to talking mode before.
The first adjustment module 802 is used to adjust the reception bearer types of the downlink data of terminal when terminal is to say user
For unicast bearer.Since echo is the content of the upstream data containing terminal itself in the received downlink data of terminal institute, also
Be in audio medium stream that terminal receives containing the Media Stream of oneself when can just generate, then, have voice and if only if terminal
It is possible to echo occur when generation, in other words, only when the terminal is to say user, is likely to carry out echo cancellor, for
For listening user, being will not be reflective.Wherein, it says that user indicates that the terminal has right of speech, and user is listened to indicate that terminal does not have
There is right of speech and be only capable of listening to other and says the voice that user is issued.Voice can also equally be listened to by saying user, and it is normal for, institute
The voice for having user and user being listened to be listened under eMBMS framework is all consistent, be all it is each say user's audio mixing after
Audio medium stream.
When determining terminal is to say user, need for the terminal to be distinguished from the multicast under eMBMS framework.Because
The multicasting characteristics of eMBMS framework, it is determined that the voice that all terminals receive all is consistent, and for having initiated echo inhibition
It is the sound for being unable to uppick terminal oneself for making the terminal that can request that, multicast is unable to satisfy this requirement.Therefore, it needs
The reception bearer types of the downlink data of the terminal are subjected to certain adjustment, at least guarantee connecing for the downlink data of the terminal
Receipts bearer types are unicast bearer.It is one-to-one exchange, server hair that unicast bearer, which is meant that between server and terminal,
The downlink data for giving the terminal does not need consistent with other terminals, and certainly, this can occupy other nets to a certain extent
Network resource, because the resource of all terminals is consistent under the framework of multicast.
Echo can be held in inhibiting to make to can request that with the reception bearer types of the downlink data of carried terminal, that is, unicast
It carries or multicast carries one of the two；Usually, request echo inhibits connecing for the downlink data for making the terminal that can request that
Receiving bearer types mostly is multicast carrying.Carried if it is multicast, then can carry corresponding multicast service mark TMGI and
MCPTT Group ID, MCPTT ID etc. information.And the reception bearer types for adjusting the downlink data of terminal are unicast bearer,
It can specifically include: when the reception bearer types of the downlink data of terminal are multicast carrying, establishing the unicast between terminal
Carrying；The reception bearer types of the downlink data of terminal are notified to switch to unicast bearer from multicast carrying.Make when from echo inhibition
When the bearer types for determining the downlink data of terminal in can request that are multicast carrying, then holding corresponding downlink data is needed
It carries type and is adjusted to unicast bearer；And if from echo inhibit to make to can request that in determine terminal downlink data bearer types
It has been not need then to be adjusted the bearer types of the downlink data of terminal after unicast bearer, has kept unicast bearer.
After the handover, then the result of switching is informed into corresponding terminal, indicates that server cuts the bearer types of downlink data
Unicast bearer is shifted to.
Audio mixing sending module 803 is used to the voice in trunking conversation group carrying out stereo process, forms audio mixing Media Stream.It is mixed
After sound processing is the voice that server is received by unicast fashion in the upstream data of each terminal, by distinguishing again for each terminal
It is sent to a kind of processing means of each terminal.For the stereo process under multicast framework, exactly by each voice for saying user
Carry out audio mixing, all terminals being then sent in trunking conversation group.All terminals are received by server under multicast framework
To voice be all consistent audio mixing.And had sent after echo inhibits to make can request that in some terminal, server is by the terminal
The reception bearer types of downlink data adjust for unicast bearer, then the received audio mixing of terminal institute can be with other ends
End is different.And it is sent to the audio mixing Media Stream of the terminal, should at least meet the following conditions: audio mixing Media Stream includes except terminal itself
It is outer other at least one say the voice of user, that is to say, that do not include the voice of terminal itself.It is sent to the audio mixing matchmaker of the terminal
If body stream does not include the voice of terminal itself, then the upstream data and downlink data of terminal would not occur in same
Hold, that is, eliminates the echo of the upstream data of terminal.
Specifically, the voice in trunking conversation group is carried out stereo process, forming audio mixing Media Stream may include: to determine eventually
Hold corresponding audio mixing strategy；The voice in trunking conversation group is subjected to stereo process according to audio mixing strategy, forms audio mixing Media Stream.
Terminal can propose that the audio mixing strategy of oneself or server can formulate corresponding audio mixing plan according to the concrete condition of terminal
Slightly.Science, a kind of simple audio mixing strategy is then that will carry out stereo process in addition to all voices for saying user of the terminal.
In general, the sound in trunking conversation group all says that user is issued, and avoiding the way of echo is exactly to make the terminal
The voice of oneself is not received, then, other other than the terminal are directly said that the voice of user carries out stereo process, are obtained
Audio mixing Media Stream can serve as the downlink data for being transferred to the terminal, and eliminate the echo of the terminal.It is, of course, also possible to logical
Other audio mixing strategies are crossed to carry out stereo process, for example say that selected section user carries out stereo process in user from other, also
Audio mixing can be adjusted in real time when other listen user to be changed into user.
In addition, it is optional, after audio mixing Media Stream is transferred to terminal by the unicast bearer of terminal, it can also wrap
It includes: receiving the echo that terminal is initiated and inhibit to go to make can request that；When the reception bearer types of the downlink data of terminal are unicast bearer
When, the reception bearer types of the downlink data of terminal are switched to multicast carrying by unicast bearer.When the end for needing echo cancellor
When end does not need to eliminate echo, terminal to server sends echo and inhibits to go to make can request that, indicates that the terminal does not need to eliminate back
Sound, then, the reception bearer types of the downlink data of terminal can be switched to multicast from unicast bearer type again at this time and held
Type is carried, allows the user of the terminal and other terminals to share multicast resource, saves the resource of frequency range.Certainly, terminal can continue to
Keep unicast bearer.
In addition, it is optional, after audio mixing Media Stream is transferred to terminal by the unicast bearer of terminal, it can also wrap
Include: when terminal is switched to and listens user, and the reception bearer types of the downlink data of terminal be unicast bearer when, will be under terminal
The reception bearer types of row data are switched to multicast carrying by unicast bearer.Due to being only need that user has echo cancellor
It asks, when user switches to listen user, also there is no need to echo cancellors, no matter the user presses down either with or without echo is sent at this time
It makes and goes to make can request that, the reception bearer types of the downlink data of the terminal can be switched to multicast carrying by server, allow this
The user of terminal and other terminals share multicast resource, save the resource of frequency range.Certainly, terminal can continue to that unicast is kept to hold
It carries.
In addition, if server handover failure in multicast and unicast, such as system resource deficiency and other reasons, then will cut
The result and reason for changing failure feed back to corresponding terminal.
5th embodiment
Referring to FIG. 9, Fig. 9 is the cluster communication device composition schematic diagram that fifth embodiment of the invention provides, comprising:
Initiation module 901 is requested, echo is initiated for the server into trunking conversation group and inhibits to make can request that；
Second adjustment module 902, for the reception bearer types of the downlink data of terminal to be adjusted to unicast bearer；
Audio mixing receiving module 903, for receiving the audio mixing Media Stream of server transport, audio mixing Media Stream is by cluster conversation
Voice in group carries out stereo process and is formed, and audio mixing Media Stream include in addition to terminal itself other at least one say user's
Voice.
Echo inhibits to make can request that, that is, the echo of server end is made to inhibit function effective, and this effective process
It at least can be targetedly, that is, for echo is initiated inhibit that the terminal that can request that is made to enable echo inhibition function, without
Other terminals are had an impact, other terminals are carried out still according to talking mode before.
Second adjustment module 902 is used to the reception bearer types of the downlink data of terminal being adjusted to unicast bearer.Due to
Echo is the content of the upstream data containing terminal itself in the received downlink data of terminal institute, that is, terminal receives
It can just be generated when in audio medium stream containing the Media Stream of oneself, then, it is possible to when terminal has voice generation
There is echo, in other words, only when the terminal is to say user, is likely to carry out echo cancellor to be not for listening user
It can be reflective.Wherein, it says that user indicates that the terminal has right of speech, and user is listened to indicate that terminal does not have right of speech and is only capable of listening to
Other say the voice that user is issued.Voice can also equally be listened to by saying user, and it is normal for, it is all to say user and listen user
The voice listened under eMBMS framework is all consistent, and is all each audio medium stream said after user's audio mixing.
When determining terminal is to say user, need for the terminal to be distinguished from the multicast under eMBMS framework.Because
The multicasting characteristics of eMBMS framework, it is determined that the voice that all terminals receive all is consistent, and for having initiated echo inhibition
It is the sound for being unable to uppick terminal oneself for making the terminal that can request that, multicast is unable to satisfy this requirement.Therefore, it needs
The reception bearer types of the downlink data of the terminal are subjected to certain adjustment, at least guarantee connecing for the downlink data of the terminal
Receipts bearer types are unicast bearer.It is one-to-one exchange, server hair that unicast bearer, which is meant that between server and terminal,
The downlink data for giving the terminal does not need consistent with other terminals, and certainly, this can occupy other nets to a certain extent
Network resource, because the resource of all terminals is consistent under the framework of multicast.
Echo can be held in inhibiting to make to can request that with the reception bearer types of the downlink data of carried terminal, that is, unicast
It carries or multicast carries one of the two；Usually, request echo inhibits connecing for the downlink data for making the terminal that can request that
Receiving bearer types mostly is multicast carrying.
Audio mixing receiving module 903 is for the upstream data that stereo process is that server receives each terminal by unicast fashion
In voice after, by a kind of processing means for being sent respectively to each terminal again of each terminal.For mixed under multicast framework
Each voice for saying user is exactly carried out audio mixing, all terminals being then sent in trunking conversation group by sound processing.Multicast frame
All terminals are all consistent audio mixing by the voice that server receives under structure.And echo is had sent in some terminal and is inhibited
Make after can request that, server adjusts the reception bearer types of the downlink data of the terminal for unicast bearer, then the end
The received audio mixing of end institute can be different from other terminals.And it is sent to the audio mixing Media Stream of the terminal, should at least it meet following
Condition: not including the voice of terminal itself.Be sent to the terminal audio mixing Media Stream do not include terminal itself voice if, that
Same content would not occur in the upstream data and downlink data of terminal, that is, eliminate time of the upstream data of terminal
Sound.
In addition, it is optional, it can also include: to be initiated to server after the audio mixing Media Stream for receiving server transport
Echo inhibits to go to make can request that；When the reception bearer types of the downlink data of terminal are unicast bearer, by the lower line number of terminal
According to reception bearer types by unicast bearer be switched to multicast carrying.
In addition, it is optional, it can also include: to be switched in terminal after the audio mixing Media Stream for receiving server transport
When listening user, and the reception bearer types of the downlink data of terminal be unicast bearer when, the reception of the downlink data of terminal is held
It carries type and multicast carrying is switched to by unicast bearer.
Sixth embodiment
Referring to FIG. 10, Figure 10 is a kind of composition schematic diagram for server that fourth embodiment of the invention provides, comprising:
First processor 101, first memory 102 and the first communication bus 103；First communication bus 103 for realizing
Connection communication between first processor 101 and first memory 102；First processor 101 is for executing first memory 102
The cluster communication program of middle storage, to realize the embodiment of cluster communication method above-mentioned, which is not described herein again.
7th embodiment
Figure 11 is please referred to, Figure 11 is a kind of terminal composition schematic diagram that fourth embodiment of the invention provides, comprising: processor
111, memory 112 and communication bus 113；Communication bus 113 is for realizing the connection between processor 111 and memory 112
Communication；Processor 111 is for executing the cluster communication program stored in memory 112, to realize cluster communication method above-mentioned
Embodiment, which is not described herein again.
In addition, the present embodiment additionally provides a kind of computer readable storage medium, deposited in the computer readable storage medium
One or more computer program is contained, computer program can be executed by one or more processor, above-mentioned to realize
The embodiment of cluster communication method, which is not described herein again.
Obviously, those skilled in the art should be understood that each module of aforementioned present invention or each step can be with general
Computing device realizes that they can be concentrated on a single computing device, or be distributed in constituted by multiple computing devices
On network, optionally, they can be realized with the program code that computing device can perform, it is thus possible to be stored in
It is performed by computing device in storage medium (ROM/RAM, magnetic disk, CD), and in some cases, it can be to be different from this
The sequence at place executes shown or described step, perhaps they are fabricated to each integrated circuit modules or by it
In multiple modules or step be fabricated to single integrated circuit module to realize.So the present invention is not limited to any specific
Hardware and software combine.
The above content is specific embodiment is combined, further detailed description of the invention, and it cannot be said that this hair
Bright specific implementation is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, it is not taking off
Under the premise of from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to protection of the invention
Range.
Claims (14)
1. a kind of cluster communication method characterized by comprising
The echo that the terminal in trunking conversation group is initiated is received to inhibit to make can request that；
When the terminal is to say user, the reception bearer types for adjusting the downlink data of the terminal are unicast bearer；
Voice in the trunking conversation group is subjected to stereo process, forms audio mixing Media Stream, and the audio mixing media are circulated
The unicast bearer for crossing the terminal is transferred to the terminal；Wherein, the audio mixing Media Stream include in addition to the terminal itself its
He at least one says the voice of user.
2. cluster communication method as described in claim 1, which is characterized in that the terminal received in trunking conversation group is initiated
Echo inhibit the enabled request to include:
It includes the reception bearer types of the downlink data of the terminal that the echo, which inhibits enabled request,；
It is described the terminal be say user when, adjust the downlink data of the terminal reception bearer types be unicast bearer packet
It includes:
When the reception bearer types of the downlink data of the terminal are that multicast carries, the unicast established between the terminal is held
It carries；
The reception bearer types of the downlink data of the terminal are notified to switch to unicast bearer from multicast carrying.
3. cluster communication method as described in claim 1, which is characterized in that the voice by the trunking conversation group into
Row stereo process, forming audio mixing Media Stream includes:
Determine the corresponding audio mixing strategy of the terminal；
The voice in the trunking conversation group is subjected to stereo process according to the audio mixing strategy, forms the audio mixing Media Stream.
4. cluster communication method as claimed in claim 3, which is characterized in that the audio mixing strategy includes:
Stereo process will be carried out in addition to all voices for saying user of the terminal.
5. cluster communication method according to any one of claims 1-4, which is characterized in that described by the audio mixing Media Stream
It is transferred to after the terminal by the unicast bearer of the terminal, further includes:
The echo that the terminal is initiated is received to inhibit to go to make can request that；
When the reception bearer types of the downlink data of the terminal are unicast bearer, by the reception of the downlink data of the terminal
Bearer types are switched to multicast carrying by unicast bearer.
6. the audio mixing Media Stream is passed through the end described by cluster communication method according to any one of claims 1-4
The unicast bearer at end is transferred to after the terminal, further includes:
When the terminal is switched to and listens user, and the reception bearer types of the downlink data of the terminal be unicast bearer when,
The reception bearer types of the downlink data of the terminal are switched to multicast carrying by unicast bearer.
7. a kind of cluster communication method characterized by comprising
Server of the terminal into trunking conversation group initiates echo and inhibits to make can request that；
The reception bearer types of the downlink data of the terminal are adjusted to unicast bearer；
Receive the audio mixing Media Stream of the server transport, the audio mixing Media Stream be by the voice in the trunking conversation group into
Row stereo process is formed, and the audio mixing Media Stream include in addition to the terminal itself other at least one say the language of user
Sound.
8. cluster communication method as claimed in claim 7, which is characterized in that server of the terminal into trunking conversation group
Initiating the enabled request of echo inhibition includes:
It includes the reception bearer types of the downlink data of the terminal that the echo, which inhibits enabled request,.
9. cluster communication method as claimed in claim 7 or 8, which is characterized in that in the reception server transport
After audio mixing Media Stream, further includes:
Echo is initiated to the server to inhibit to go to make can request that；
When the reception bearer types of the downlink data of the terminal are unicast bearer, by the reception of the downlink data of the terminal
Bearer types are switched to multicast carrying by unicast bearer.
10. cluster communication method as claimed in claim 7 or 8, which is characterized in that in the reception server transport
After audio mixing Media Stream, further includes:
When the terminal is switched to and listens user, and the reception bearer types of the downlink data of the terminal be unicast bearer when,
The reception bearer types of the downlink data of the terminal are switched to multicast carrying by unicast bearer.
11. a kind of server, which is characterized in that including first processor, first memory and the first communication bus；Described first
Communication bus is for realizing the connection communication between the first processor and first memory；The first processor is for holding
The cluster communication program stored in the row first memory, to realize cluster communication as claimed in any one of claims 1 to 6
The step of method.
12. a kind of terminal, which is characterized in that including second processor, second memory and the second communication bus；Described second is logical
Believe bus for realizing the connection communication between the second processor and second memory；The second processor is for executing
The cluster communication program stored in the second memory, to realize such as the described in any item cluster communication sides claim 7-10
The step of method.
13. a kind of computer readable storage medium, which is characterized in that be stored in the computer readable storage medium one or
The multiple computer programs of person, the computer program can be executed by one or more processor, to realize such as claim 1-6
The step of described in any item cluster communication methods.
14. a kind of computer readable storage medium, which is characterized in that be stored in the computer readable storage medium one or
The multiple computer programs of person, the computer program can be executed by one or more processor, to realize such as claim 7-
The step of 10 described in any item cluster communication methods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711066475.0A CN109756852A (en) | 2017-11-02 | 2017-11-02 | Cluster communication method, server, terminal and computer readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711066475.0A CN109756852A (en) | 2017-11-02 | 2017-11-02 | Cluster communication method, server, terminal and computer readable storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109756852A true CN109756852A (en) | 2019-05-14 |
Family
ID=66398489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711066475.0A Withdrawn CN109756852A (en) | 2017-11-02 | 2017-11-02 | Cluster communication method, server, terminal and computer readable storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109756852A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112019488A (en) * | 2019-05-31 | 2020-12-01 | 广州市百果园信息技术有限公司 | Voice processing method, device, equipment and storage medium |
| CN113038060A (en) * | 2019-12-25 | 2021-06-25 | 中国电信股份有限公司 | Multi-channel audio processing method and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0629080B1 (en) * | 1993-06-09 | 2000-02-23 | STMicroelectronics S.r.l. | Adaptive method to remove ghosts in video signals |
| CN102325230A (en) * | 2011-09-07 | 2012-01-18 | 中兴通讯股份有限公司 | Processing method and system for eliminating echoes and digital microphone |
| CN105913853A (en) * | 2016-06-13 | 2016-08-31 | 上海盛本智能科技股份有限公司 | Near-field cluster intercom echo elimination system and realization method thereof |
| WO2017023109A1 (en) * | 2015-08-06 | 2017-02-09 | 삼성전자 주식회사 | Terminal, and operation method for terminal |
-
2017
- 2017-11-02 CN CN201711066475.0A patent/CN109756852A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0629080B1 (en) * | 1993-06-09 | 2000-02-23 | STMicroelectronics S.r.l. | Adaptive method to remove ghosts in video signals |
| CN102325230A (en) * | 2011-09-07 | 2012-01-18 | 中兴通讯股份有限公司 | Processing method and system for eliminating echoes and digital microphone |
| WO2017023109A1 (en) * | 2015-08-06 | 2017-02-09 | 삼성전자 주식회사 | Terminal, and operation method for terminal |
| CN105913853A (en) * | 2016-06-13 | 2016-08-31 | 上海盛本智能科技股份有限公司 | Near-field cluster intercom echo elimination system and realization method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 3GPP TSG-SA WG6 MEETING #19: "Introduction of the multi-talker control", 《3GPP TSG-SA WG6 MEETING #19》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112019488A (en) * | 2019-05-31 | 2020-12-01 | 广州市百果园信息技术有限公司 | Voice processing method, device, equipment and storage medium |
| CN112019488B (en) * | 2019-05-31 | 2023-12-12 | 广州市百果园信息技术有限公司 | Voice processing method, device, equipment and storage medium |
| CN113038060A (en) * | 2019-12-25 | 2021-06-25 | 中国电信股份有限公司 | Multi-channel audio processing method and system |
| CN113038060B (en) * | 2019-12-25 | 2022-11-18 | 中国电信股份有限公司 | Multi-channel audio processing method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2371854C2 (en) | Transmission method of services of multimedia broadcasting/multicasting | |
| CN104854888B (en) | The idle mode reception method and user equipment of group communication | |
| US8656029B2 (en) | Multicast session setup in networks by determining a multicast session parameter based on a pre-existing unicast session parameter | |
| CN101616364B (en) | Group call business realizing method | |
| US20090303909A1 (en) | Point-to-multipoint data communication | |
| EP1906684B1 (en) | A method and apparatus for obtaining group information by the invited user during the session | |
| WO2013096032A4 (en) | Method and apparatus for processing group event notifications and providing group policy in a communication system | |
| CN102088662B (en) | Method for realizing real-time transmission of multimedia service in broadband digital cluster group | |
| WO2008025239A1 (en) | Evolved-mbms base station, user equipment and method | |
| RU2666128C1 (en) | Method and device for the management of the word right | |
| CN101262630B (en) | Receiving/transmission method and device for multimedia broadcast and multicast service | |
| KR20070118667A (en) | System and method for distributing voip data packets in group communications among wireless telecommunication devices | |
| TW200822647A (en) | Method and apparatus of selecting operating frequency for user equipment in a wireless communications system | |
| CN1778130A (en) | Method for delayed entering into a conversation or renewed entering into a conversation of at least one radio communication device in an already existing push-to-talk-group discussion, radio communica | |
| CN103583077A (en) | Group communications over evolved multimedia broadcast/multicast services | |
| KR20050073114A (en) | Method and apparatus for providing of broadcast/multicast service in wireless telecommunication system | |
| TW201101871A (en) | Method and apparatus for improving MCCH monitoring mechanism | |
| CN100477862C (en) | Method and system for determining centrally controlled server | |
| CN103686620A (en) | Method for preventing voices from being lost in group calling rapidly-building process | |
| CN101467469B (en) | Device and control procedure for FDD and non-FDD bandwidth | |
| CN103096261A (en) | Method and system based on priority level managing cluster speaking right | |
| CN101507304B (en) | Rapid push-to-talk call setup method and apparatus | |
| CN100588274C (en) | Method for switching booking of multipartite call right to speak in numeral intercommunication system | |
| CN109756852A (en) | Cluster communication method, server, terminal and computer readable storage medium | |
| CN101448201B (en) | Method, apparatus and system for establishing broadcast or multicast bearer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190514 |