CN109995479A - A kind of voice data communication method, system and audio communication device - Google Patents
A kind of voice data communication method, system and audio communication device Download PDFInfo
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- CN109995479A CN109995479A CN201910476568.3A CN201910476568A CN109995479A CN 109995479 A CN109995479 A CN 109995479A CN 201910476568 A CN201910476568 A CN 201910476568A CN 109995479 A CN109995479 A CN 109995479A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
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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
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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Abstract
Voice data communication method, system and audio communication device are provided in the embodiment of the present application, this method comprises: receiving the packets of audio data that audiogenic device is sent to the first equipment according to the wireless link information between audiogenic device and the first equipment；When not being properly received packets of audio data, interference signal, the response message ACK that interference signal is used to that the first equipment to be interfered to send at the second moment to audiogenic device when being properly received packets of audio data are sent at the first moment.Using the scheme provided in the embodiment of the present application, the reliability that the second equipment obtains audio data can be improved.
Description
Technical field
This application involves fields of communication technology more particularly to a kind of voice data communication method, system and voice communication to set
It is standby.
Background technique
The broad development of Bluetooth technology makes blue tooth products and service become a part of people's life, especially with intelligent hand
Centered on machine, with HFP(Hands-free Profile, handsfree protocol) and A2DP(Advanced Audio Distribution
Profile, advanced audio transmission protocol) based on bluetooth headset to be applied bring the great life convenient of people.It is fully wireless
Double wireless Bluetooth headsets of connection are even more to obtain liking for people.
The method that left and right earphone is wirelessly connected shared audio data is broadly divided into three classes, and the first kind is existed by Bluetooth protocol
Audio data is forwarded between the earphone of left and right.Second class is to forward audio data between the earphone of left and right by privately owned wireless protocols,
For example, using near-field communication or ultrasonic wave etc..Third class is left and right earphone (or principal and subordinate's earphone) shared link information, is supervised from earphone
Main earphone is listened to receive audio data from audiogenic device, so that left and right earphone receives the audio data of source of sound simultaneously.
But it has been recognised by the inventors that haveing the shortcomings that bandwidth availability ratio is low using first kind scheme.Using the second class scheme, need
Increase new communication module, it is at high cost.When using third class scheme, due to from earphone cannot in time by audio data whether just
True received information feeds back to audiogenic device, and causes low from the received audio data reliability of earphone.
Summary of the invention
A kind of voice data communication method, system and audio communication device are provided in the embodiment of the present application, for solving
At least one above-mentioned problem in the prior art.
According to the first aspect of the embodiment of the present application, a kind of voice data communication method is provided, comprising: the second equipment
According to the wireless link information between audiogenic device and the first equipment, the audio data that audiogenic device is sent to the first equipment is received
Packet；When second equipment is not properly received the packets of audio data, interference signal is sent at the first moment, interference signal is used
In the response message ACK for interfering the first equipment to send at the second moment to audiogenic device when being properly received packets of audio data
(Acknowledgement)；Wherein, the second equipment sends the channel of interference signal and sends ACK to audiogenic device for the first equipment
Channel；First moment was at the time of shifting to an earlier date than the second moment or delay scheduled duration；Scheduled duration is less than the one of audiogenic device
It is a to receive fuzzy window.
According to the second aspect of the embodiment of the present application, a kind of voice data communication method is provided, comprising: the second equipment
According to the wireless link information between audiogenic device and the first equipment, the audio data that audiogenic device is sent to the first equipment is received
Packet；When second equipment is not properly received the packets of audio data, interference signal is sent at the first moment, interference signal is used
In the response message ACK for interfering the first equipment to send at the second moment to audiogenic device when being properly received packets of audio data；Its
In, the channel that the second equipment sends interference signal is channel of first equipment to audiogenic device transmission ACK；Entrained by interference signal
Data and data entrained by response message ACK it is at least partly different.
In terms of according to the third of the embodiment of the present application, a kind of audio communication device is provided, comprising: first receives mould
Block, for receiving audiogenic device and being sent to the first equipment according to the wireless link information between audiogenic device and the first equipment
Packets of audio data；First sending module, for sending interference letter at the first moment when not being properly received the packets of audio data
Number, the sound that interference signal is used to that the first equipment to be interfered to send at the second moment to audiogenic device when being properly received packets of audio data
Answer information ACK；Wherein, it is the channel that the first equipment sends ACK to audiogenic device that the second equipment, which sends the channel of interference signal,；The
One moment was at the time of shifting to an earlier date than the second moment or delay scheduled duration；The reception that scheduled duration is less than audiogenic device is fuzzy
Window.
According to the 4th of the embodiment of the present application the aspect, a kind of audio communication device is provided, comprising: second receives mould
Block, for receiving audiogenic device and being sent to the first equipment according to the wireless link information between audiogenic device and the first equipment
Packets of audio data；Second sending module, for sending interference letter at the first moment when not being properly received the packets of audio data
Number, the sound that interference signal is used to that the first equipment to be interfered to send at the second moment to audiogenic device when being properly received packets of audio data
Answer information ACK；Wherein, it is the channel that the first equipment sends ACK to audiogenic device that the second equipment, which sends the channel of interference signal,；It is dry
It disturbs data entrained by signal and data entrained by response message ACK is at least partly different.
According to the 5th of the embodiment of the present application the aspect, a kind of voice data communication system is provided, comprising: first sets
It is standby, for establishing Radio Link with audiogenic device, packets of audio data is received from audiogenic device；And by the nothing between audiogenic device
Wired link information is sent to the second equipment；Second equipment, the second equipment are such as above-mentioned audio communication device.
Using voice data communication method, system and audio communication device provided by the embodiments of the present application, the second equipment exists
When being not properly received packets of audio data, the interference signal of the ACK for interfering the first equipment to send to audiogenic device is sent, is promoted
Make audiogenic device retransmitted audio data packet；To improve the reliability that the second equipment obtains audio data.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 shows the voice data communication system schematic according to the embodiment of the present application one；
Fig. 2 a and Fig. 2 b show the two of the voice data communication method executed according to the second equipment side of the embodiment of the present application two
Kind flow chart；
Fig. 3 shows a kind of sequential relationship schematic diagram between interference signal and ack signal according to the embodiment of the present application；
Fig. 4 shows another sequential relationship schematic diagram between interference signal and ack signal according to the embodiment of the present application；
Fig. 5 a and Figure 5b shows that two kinds of structural schematic diagrams according to the audio communication device of the embodiment of the present application three；
Fig. 6 shows the structural schematic diagram of the helmet according to the embodiment of the present application four；
Fig. 7 shows the transmitting-receiving time diagram of the A2DP link according to the embodiment of the present application four；
Fig. 8 shows transmitting-receiving timing signal when failing in the A2DP link according to the embodiment of the present application four from earphone CRC check
Figure；
Transmitting-receiving when Fig. 9 is shown in the A2DP link according to the embodiment of the present application four from earphone synchronization failure or packet header mistake
Time diagram；
Figure 10 shows the transmitting-receiving time diagram of the HFP/eSCO link according to the embodiment of the present application five.
Specific embodiment
In order to which technical solution in the embodiment of the present application and advantage is more clearly understood, below in conjunction with attached drawing to the application
Exemplary embodiment be described in more detail, it is clear that described embodiment be only the application a part implement
Example, rather than the exhaustion of all embodiments.It should be noted that in the absence of conflict, embodiment and reality in the application
The feature applied in example can be combined with each other.
In one embodiment of the application, a kind of voice data communication system is provided, it is wireless by audiogenic device for receiving
The audio signal of transmission comprising the first equipment and at least one second equipment.
Wherein, the audiogenic device can be mobile phone, portable media player, computer, home entertaining or family
Any possible audio data output equipment such as multimedia/audio transmitter in cinema system.
First equipment and the second equipment can be hearing aid, loudspeaker, earphone, speaker, mobile phone, portable matchmaker
Any possible audio that carries out such as body player, computer, smartwatch, wearable electronic, vehicle-mounted audio device is broadcast
The audio communication device put, for example, being sound equipment respectively, such first equipment (or first sound equipment) and one or more second are set
Standby (or second sound equipment) can form Wireless stereo acoustic sound system；It also can be one in these audio communication devices respectively
Loudspeaker, for example, being left ear earphone and auris dextra earphone of headphone etc. respectively.First equipment is based on scheduled wireless
Communication protocol and the audiogenic device, which are established, to be wirelessly connected, and realizes the transmission of the audio datas such as voice, audio, music；Described
When one equipment receives the packets of audio data from audiogenic device, if be properly received, replys response message ACK and set to source of sound
It is standby, it so that audiogenic device sends new packets of audio data, and is not properly received, then replys Negative Acknowledgment information NAK to audiogenic device,
So that audiogenic device retransmits the packets of audio data.
Second equipment obtains first equipment and the audiogenic device establishes the wireless link information being wirelessly connected,
And according to the wireless link information, the packets of audio data that the audiogenic device is sent to the first equipment is received.If the second equipment
Any signal can not then be sent by being properly received the packets of audio data；If the second device Errors receive the packets of audio data,
Sending interference signal prevents the audiogenic device from being properly received the ACK thus retransmitted audio data that the first equipment is sent.
Wherein, second equipment can wirelessly be connected based on scheduled wireless communication protocol and first equipment foundation
It connects, to obtain the wireless link information.The wireless communication protocol can be with the nothing between first equipment and audiogenic device
Line communication protocol is same or different.For example, the second equipment and the first equipment, which are based on proprietary wireless protocols, establishes wireless connection, the
One equipment and audiogenic device are based on bluetooth specification and establish wireless connection.
Terms used herein " wireless communication protocol " can be standard wireless protocol, be also possible to proprietary wireless protocol or private
There are wireless protocols.Terms used herein " standard wireless protocol " refers to any opening or publicly available wireless protocols, including mark
Quasi- mechanism or tissue provide or any wireless protocols of publication, such as bluetooth specification, Wi-Fi.Terms used herein is " specially
Have wireless protocols " or " privately owned wireless protocols " refer to any wireless protocols in addition to standard wireless protocol.
Wherein, the second equipment sends the channel of interference signal and first equipment sends response to the audiogenic device and believes
The channel for ceasing ACK is identical.
The sending time of the interference signal can be same or different with the sending time of the response message ACK.Hair
When sending the time identical, data entrained by data entrained by the interference signal and the response message ACK are at least partly not
Together.When sending time difference, the sending time slots of the interference signal are at least heavy with the sending time slots part of the response message ACK
Folded, data entrained by the interference signal can be identical or different with data entrained by the response message ACK.
In this way, if the first equipment and the second equipment are all properly received the packets of audio data of audiogenic device, audiogenic device
It can receive the response message ACK to the first device replied, thus send new packets of audio data in next time slot.If the
Two device Errors receive the packets of audio data, then no matter the first equipment is correct or garbled-reception, the first device replied source of sound are set
Standby response message ACK or Negative Acknowledgment information NAK can be interfered by the interference signal that the second equipment is sent very in maximum probability and be led
Cause audiogenic device can not receive the first equipment ACK or NAK and retransmitted audio data packet, until confirm the first equipment be properly received sound
Until frequency data packet or re-transmission time time-out.
As it can be seen that a kind of voice data communication method, system and audio communication device provided by the present application, the second equipment are not having
When being properly received packets of audio data, the interference signal of the ACK for interfering the first equipment to send to audiogenic device is sent, is promoted
Audiogenic device retransmitted audio data packet；To improve the reliability that the second equipment obtains audio data.
As a kind of typical application scenarios, the application can be used in helmet, such as in the specific implementation, the first equipment
It can be for example main earphone, the second equipment can be the helmet for example from earphone.For illustrative purposes, it will use below
It main earphone and is described in detail from earphone.It will be appreciated by those skilled in the art that it is other using the technology of the present invention thinkings and
The embodiment of principle is also within the protection scope of the embodiment of the present application.
Using the scheme in the embodiment of the present application, when audiogenic device sends audio data to main earphone, the processing of main earphone
Mode is as follows: replying response message ACK if main earphone is properly received audio data convenient for audiogenic device and sends new data, such as
The main earphone garbled-reception audio data of fruit replys Negative Acknowledgment information NAK then convenient for audiogenic device retransmitted audio data.
It does not send any signal if being properly received audio data from earphone, is sent if garbled-reception audio data
ACK of the interference signal to interfere main earphone to send to audiogenic device.
That is, for same packets of audio data, if main earphone and being all properly received the audio data of audiogenic device from earphone,
Then audiogenic device can receive the ACK that main earphone is replied, thus new audio data is sent in next time slot.If from ear
Machine receives mistake, then no matter main earphone is correct or garbled-reception, the ACK or NAK of main earphone reply can be sent from earphone
Interference signal interference, and audiogenic device is made to can not receive the ACK or NAK and retransmitted audio data packet that main earphone is sent.To mention
Height obtains the reliability of audio data from earphone.
Embodiment one
Fig. 1 shows the voice data communication system schematic according to the embodiment of the present application one.
As indicated with 1, according to the voice data communication system 10 of the embodiment of the present application one, comprising: the first equipment 200, second
Equipment 300.
In the specific implementation, the first equipment can be the audio communication device of for example main earphone.Second equipment can be example
Such as from the audio communication device of earphone.
In the specific implementation, the equipment that audiogenic device can be such as smart phone or tablet computer；Main earphone can lead to
Wireless communication protocol, such as Bluetooth protocol are crossed, establishes and is wirelessly connected with audiogenic device.Main earphone and nothing can also be passed through from earphone
Line communication protocol, such as Bluetooth protocol are established and are wirelessly connected.Main earphone is given from earphone and provides main earphone between audiogenic device
Wireless link information, convenient for receiving and parsing the audio data that audiogenic device is sent to main earphone from earphone, and it is dry sending
After disturbing signal, when still without being properly received packets of audio data, the packets of audio data lost from earphone is forwarded to the request of main earphone.
In Fig. 1, audiogenic device is decided the main equipment (BT Master) of earphone, and main earphone is the slave equipment of audiogenic device
(BT Slave), main earphone are the BT Master from earphone, monitor audiogenic device as BT Slave from earphone and are sent to main ear
The audio data of machine.Main earphone can first with audiogenic device establish after bluetooth wireless connection again with establish bluetooth from earphone and wirelessly connect
It connects, first can also establish bluetooth wireless connection with audiogenic device again with establishing bluetooth wireless connection from earphone.Main earphone and from ear
The task of bluetooth wireless connection between machine first is that main earphone between audiogenic device bluetooth wireless links information transmit
To from earphone, the Bluetooth address including audiogenic device, bluetooth clock, encryption key pair (Link Key) etc., being convenient for can be same from earphone
Channel and time slot of the main earphone with the bluetooth wireless connection between audiogenic device are walked, thus receives audiogenic device and is sent to main earphone
Link information and audio data.
In the specific implementation, it may include two classes that audiogenic device, which is sent to the audio data of main earphone, and one kind is monophonic
Call voice, another kind of is monophonic or stereo music.If it is monophonic call voice or monophonic music, supervised from earphone
After listening, with main earphone agreement, the identical time plays simultaneously.If it is stereo music, then main earphone and arrange from earphone identical
Time play L channel or right channel respectively.I.e. main earphone plays L channel, right channel is played from earphone, alternatively, main earphone
Right channel is played, plays L channel from earphone.
In the specific implementation, main earphone and the different earphones for only executing respective corresponding function respectively be can be from earphone.That is,
Main earphone, which only has from audiogenic device, receives audio data, and link will be between main earphone and audiogenic device by wireless communication
Wireless link information and audio data be sent to the function from earphone；And only there is monitoring from earphone or receive audio number
According to, and send the function of interference signal.
In another embodiment specific implementation mode, main earphone and it is also possible to be provided simultaneously with the earphone of function each other from earphone.
That is, main earphone and all have from earphone from audiogenic device and receive audio data, and by wireless communication link by this earphone and
Wireless link information and audio data between audiogenic device are sent to another earphone and monitor or receive audio data,
And send the function of interference signal.
It should be appreciated that "master" and "slave" at this time is relative concept, and under different scenes, main earphone and the position from earphone
Setting can be interchanged.For example, left earphone can be by as main earphone, and right earphone is used as from earphone under some scene；And another
Under scene, it is also possible to by right earphone as main earphone, and left earphone is used as from earphone.It should be appreciated that when in two earphones
As soon as when by as " main earphone ", another is corresponding to be used as " from earphone ".
Specifically, main earphone can be determined according to various ways, for example, can using first access audiogenic device earphone as
Main earphone, the conduct accessed afterwards is from earphone；It can also be selected or be arranged to determine main earphone on audiogenic device by user
With from earphone, the application to this with no restriction.
Embodiment two
Fig. 2 a and Fig. 2 b show the two of the voice data communication method executed according to the second equipment side of the embodiment of the present application two
Kind flow chart.
As shown in Figure 2 a, include: according to the voice data communication method that the second equipment side of the embodiment of the present application two executes
S2011, the second equipment receive audiogenic device and are sent to master according to the wireless link information between audiogenic device and main earphone
The packets of audio data of earphone.
S2021 sends interference signal at the first moment when the second equipment is not properly received packets of audio data.Interference letter
Number for the response message of interfering the first equipment to send at the second moment to audiogenic device when being properly received packets of audio data
ACK.The channel that second equipment sends ID packet is identical with the main earphone reply channel of audiogenic device ACK.First moment was than second
At the time of moment shifts to an earlier date or delays scheduled duration；Reception of the scheduled duration less than an audiogenic device obscures window.
In the specific implementation, if the second equipment is properly received packets of audio data, interference signal is not sent.
In the specific implementation, data entrained by data entrained by interference signal and response message ACK are not at least partly
Together.
In the specific implementation, for the ack signal for effectively interfering the first equipment to send, bluetooth ID transmitted by the second equipment
The slot portion overlapping for the ack signal that the time slot of packet is sent with the first equipment.Specifically, bluetooth ID packet transmitted by the second equipment
The bluetooth packet of reply ACK relative to the transmission of the first equipment shifts to an earlier date or delays the fuzzy window of a reception of audiogenic device, for example,
Duration within 10us.More specifically, the duration of previous leading character can be proposed, that is, 4us.
Specifically, Fig. 3 shows a kind of sequential relationship between the interference signal and ack signal according to the embodiment of the present application
Schematic diagram.As shown in figure 3, when packets of audio data is the music data of 2DH5, such as the first device replied ACK of main earphone
Using NULL packet, NULL packet includes 4us leading character, 64us synchronization character (synchronizing sequence), leads symbol and the packet header 54us after 4us.Such as
For the interference signal sent from the second equipment of earphone, that is, bluetooth ID packet includes 4us leading character, 64us synchronization character (synchronous sequence
Column).It is 10us that the reception of audiogenic device at this time, which obscures window, and ID packet ratio NULL packet can be set and shift to an earlier date 4us transmission.
Fig. 4 shows the signal of another sequential relationship between interference signal and ack signal according to the embodiment of the present application
Figure.As shown in figure 4, it includes 4us that main earphone, which replys the 2EV3 packet that ACK is used, when packets of audio data is the voice data of 2EV3
Leading character, 64us synchronization character lead the data payload of symbol and the packet header 54us and length not etc. after 4us.The interference letter sent from earphone
Number, that is, bluetooth ID packet includes 4us leading character, 64us synchronization character.It is 10us that the reception of audiogenic device at this time, which obscures window, can be with
ID packet ratio 2EV3 packet is set and shifts to an earlier date 4us transmission.
From figs. 3 and 4 it can be seen that the ACK that the synchronization character for the interference signal that the second equipment is sent and the first equipment are sent
The synchronization character of signal partly overlaps, so that audiogenic device can not normally receive the ack signal of the first equipment transmission, reaches dry
The purpose disturbed.
As shown in Figure 2 b, another voice data communication method packet executed according to the second equipment side of the embodiment of the present application two
It includes:
S2012, the second equipment receive audiogenic device and are sent to master according to the wireless link information between audiogenic device and main earphone
The packets of audio data of earphone.
S2022 sends interference signal when the second equipment is not properly received packets of audio data.Interference signal is for interfering
The response message ACK that first equipment is sent at the second moment to audiogenic device when being properly received packets of audio data.Second equipment
The channel for sending interference signal is channel of first equipment to audiogenic device transmission response message ACK；Interference signal is taken
The data of band and data entrained by response message ACK are at least partly different.
When using bluetooth connection between the first equipment and audiogenic device, interference signal can be bluetooth characteristic ID
(Identification) it wraps；ID packet includes leading character field and synchronization character field；What the synchronization character field of interference signal carried
Synchronization character sequence is different from the synchronization character sequence that the synchronization character field of response message ACK carries.
Specifically, synchronization character sequence can be generated according to the Bluetooth address of the second equipment.Due to the bluetooth of second equipment
Location is all different with the Bluetooth address of audiogenic device and the first equipment, and therefore, generated synchronization character sequence is same with the first equipment
The synchronization character sequence of the bluetooth packet communicated between audiogenic device is different.Since synchronization character sequence is different, can generate effectively
Interference.
It should be appreciated that the generation of synchronization character sequence can use various ways, generated according to the Bluetooth address of the second equipment
Only one of specific embodiment.
In the specific implementation, the transmission power of bluetooth ID packet is not less than the transmission power of ACK.In order to effectively source of sound be promoted to set
The standby audio data retransmitting the second equipment and being not properly received, the second equipment can also be improved the transmitting function for sending bluetooth ID packet
Rate, so that the transmission power for sending bluetooth ID packet is higher than the transmission power of ACK.For example, 3dB can be improved.
In the specific implementation, the second equipment is not properly received situation there are two types of packets of audio data, and one is CRC(Cyclic
Redundancy Check, cyclic redundancy check) failure；Another kind is packets of audio data synchronization failure or packet header mistake.
In the case where CRC failure, since the second equipment is believed by the Radio Link between audiogenic device and the first equipment
Breath can determine next sending time slots of the first equipment, therefore can directly make a reservation in advance than next sending time slots of the first equipment
Duration, for example, 4us sends interference signal, thus the ACK that the first equipment of interference is sent to audiogenic device, so that source of sound is set
The standby ACK that can not receive the return of the first equipment, triggering retransmit.For example, when audio data is music data, the first equipment
Next sending time slots are after 3125us, then the second equipment sends interference signal in 3121us.
In the case where packet synchronisation failure or packet header mistake, due to the second equipment synchronization failure or packet header mistake, nothing
Method knows next sending time slots of the first equipment, therefore can send and interfere at one or more moment since next time slot
Signal, so that the Time Slot Overlap of at least one sending instant and the first device replied ACK.Specifically, the second equipment can be from
Next time slot of the time of reception of the packets of audio data of synchronization failure or packet header mistake shifts to an earlier date scheduled duration and sends interference signal.Example
Such as, next sending time slots of the first equipment are after 3125us, but due to the second equipment synchronization failure or packet header mistake, in this case it is not apparent that
Next sending time slots of first equipment.At this point, the second equipment judges next time slot after 625us, then 4us in advance, sends out in 621us
Send interference signal.It is sending in next time slot after interference signal, discovery still synchronization failure or packet header mistake then continue
Under next time slot, that is, 1871us send interference signal；And repeat the process, until the interference signal that is sent in 3121us with
The Time Slot Overlap of first device replied ACK.
In the specific implementation, in the case where the first equipment is properly received packets of audio data, the second equipment reception failure, such as
It, can when the second equipment of fruit confirms that certain packets of audio data is not correctly received according to the sequence number or gap information of packets of audio data
To send the forwarding request of packets of audio data to the second equipment, the sequence of the packets of audio data of request forwarding is carried in forwarding request
Row number.That is, the second equipment passes through the first equipment and the second equipment according to the sequence number or gap information of the packets of audio data of loss
Between bluetooth wireless connection request the first device forwards packets of audio data, thus improve the second equipment obtain audio data can
By property.If the first equipment can not forward the audio data of loss, the packets of audio data of loss can be disappeared by audio post-processing
It removes, i.e., is handled using PLC (Packet Loss Concealment, bag-losing hide) technology.
Using the voice data communication method of the embodiment of the present application, the second equipment is being not properly received packets of audio data
When, the interference signal for interfering the first equipment to audiogenic device transmission response message is sent, audiogenic device retransmitted audio is promoted
Data packet, to improve the reliability that the second equipment obtains audio data.
Based on the same inventive concept, a kind of audio communication device is additionally provided in the embodiment of the present application, since the audio is logical
The principle that letter equipment solves the problems, such as is similar to method provided by the embodiment of the present application two, therefore the implementation of the audio communication device
Method may refer to the implementation of method, and overlaps will not be repeated.
Embodiment three
Fig. 5 a and Figure 5b shows that two kinds of structural schematic diagrams according to the audio communication device of the embodiment of the present application three.
As shown in Figure 5 a, according to the audio communication device 500 of the embodiment of the present application three, comprising: the first receiving module 5011,
For receiving the audio that audiogenic device is sent to the first equipment according to the wireless link information between audiogenic device and the first equipment
Data packet；First sending module 5021, for sending interference signal at the first moment when not being properly received packets of audio data；
Interference signal is for interfering the first equipment to send out at the second moment to the audiogenic device when being properly received the packets of audio data
The response message ACK sent；Wherein, it sends the channel of interference signal and sends ACK's to the audiogenic device for first equipment
Channel；First moment is at the time of shifting to an earlier date than the second moment or delay scheduled duration；Less than one sound of the scheduled duration
The reception of source device obscures window.
In the specific implementation, data entrained by data entrained by interference signal and response message ACK are not at least partly
Together.
In the specific implementation, when using bluetooth connection between main earphone and audiogenic device, interference signal can be bluetooth
Characteristic ID packet；ID packet includes leading character field and synchronization character field；The synchronization character sequence that the synchronization character field of interference signal carries
It is different from the synchronization character sequence that the synchronization character field of response message ACK carries.
It as shown in Figure 5 b, can also include: the second reception mould according to the audio communication device 500 of the embodiment of the present application three
Block 5012, for according to the wireless link information between audiogenic device and the first equipment, reception audiogenic device to be sent to first and sets
Standby packets of audio data；Second sending module 5022 is done for sending interference signal when not being properly received packets of audio data
Disturb response message ACK of the signal for interfering the first equipment to send when being properly received packets of audio data to audiogenic device；Wherein,
The channel for sending interference signal is channel of first equipment to audiogenic device transmission response message ACK；Entrained by interference signal
Data and data entrained by response message ACK are at least partly different.
In the specific implementation, interference signal is bluetooth characteristic ID packet；ID packet includes leading character field and synchronization character field；It is dry
The synchronization character sequence that the synchronization character sequence of synchronization character field carrying and the synchronization character field of response message ACK for disturbing signal carry is not
Together.
In the specific implementation, the synchronization character sequence of bluetooth characteristic ID packet is generated according to the Bluetooth address of the second equipment.
In the specific implementation, when not to be properly received packets of audio data be packets of audio data synchronization failure or packet header mistake, the
Two equipment shift to an earlier date scheduled duration from next time slot and send interference signal.
In the specific implementation, which can also include: forwarding module, for according to audio data
When the sequence number or gap information of packet confirm that certain packets of audio data is not correctly received, packets of audio data is sent to the first equipment
Forwarding request, forwarding request in carry packets of audio data sequence number or gap information.
In the specific implementation, the transmission power for sending power and being more than or equal to ACK of interference signal.
Using the audio communication device of the embodiment of the present application, when being not properly received packets of audio data, send for doing
The interference signal that another equipment sends response message to audiogenic device is disturbed, audiogenic device retransmitted audio data packet is promoted；To mention
High equipment obtains the reliability of audio data.
Based on the same inventive concept, a kind of helmet is additionally provided in the embodiment of the present application, due to the helmet solution
Certainly the principle of problem is similar to method provided by the embodiment of the present application two, therefore the implementation of the helmet may refer to method
Implementation, overlaps will not be repeated.
Example IV
Fig. 6 shows the structural schematic diagram of the helmet according to the embodiment of the present application four.
As shown in fig. 6, including: main earphone 601 according to the helmet 600 of the embodiment of the present application four；And from earphone
602。
In the specific implementation, it may refer to three sound intermediate frequency communication equipment 500 of the embodiment of the present application from the implementation of earphone 602
Implement, overlaps will not be repeated.
In the specific implementation, main earphone 200 can receive audio data using only having in the prior art from audiogenic device,
And by wireless communication link by between main earphone and audiogenic device wireless link information and audio data be sent to from
The earphone of the function of earphone.Can also be in addition to above-mentioned function in the prior art, the slave ear that is also equipped in the embodiment of the present application
The earphone of machine function, the application to this with no restriction.
In the specific implementation, main earphone is by Bluetooth wireless communication agreement with audiogenic devices such as smart phone or tablet computers
It establishes and is wirelessly connected, realize audio transmission.Main earphone and from earphone also by Bluetooth protocol establish be wirelessly connected, main earphone give from
Earphone provides main earphone with the wireless link information between audiogenic device, is sent to convenient for audiogenic device is received and parsed from earphone
The audio data of main earphone.When being not properly received audiogenic device audio data from earphone, main earphone passes through between principal and subordinate
Bluetooth connection forwards the audio data lost from earphone.
Fig. 7 shows the transmitting-receiving time diagram of the A2DP link according to the embodiment of the present application four.
As shown in fig. 7, by taking A2DP link as an example, when audiogenic device sends the 2DH5 packet of carrying audio data, main earphone with
The 2DH5 that audiogenic device is sent all is received in reception state simultaneously from earphone.After main earphone is properly received, sent in TX time slot
NULL packet replys audiogenic device ACK, after main earphone garbled-reception, sends NULL packet reply audiogenic device NAK in TX time slot.From ear
After machine is properly received, interference signal is not sent in TX time slot, after earphone garbled-reception, sends interference signal in TX time slot.
In this way, if main earphone and being all properly received 2DH5 from earphone, mobile phone if, will receive the ACK that main earphone is replied, hand
Chance continues to send next data packet.If main earphone garbled-reception 2DH5 is properly received 2DH5 from earphone, mobile phone be will receive
The NAK that main earphone is replied, mobile phone retransmit 2DH5.If main earphone is properly received 2DH5, from earphone garbled-reception 2DH5, because from
Earphone replys the ACK that interference signal interferes main earphone to send, and causes mobile phone that will can not receive the ACK of main earphone reply, and mobile phone will weigh
Send out 2DH5.
If main earphone garbled-reception 2DH5, from earphone also garbled-reception 2DH5, because it is dry to reply interference signal from earphone
The NAK that main earphone is sent is disturbed, causes mobile phone that will can not receive the NAK of main earphone reply, mobile phone will retransmit 2DH5.
That is, no matter main earphone or from earphone, as long as there is an earphone garbled-reception 2DH5, mobile phone can all be retransmitted
2DH5, until main earphone is properly received audio data or retransmission time out.
Interference signal is exactly the bluetooth ID packet generated with the synchronization character generated from the Bluetooth address of earphone.Wherein, from earphone
Bluetooth address be different from the Bluetooth address of audiogenic device and main earphone, therefore, generated bluetooth ID packet is included
Synchronization character sequence is different with the synchronization character sequence of the bluetooth packet communicated between audiogenic device with main earphone.
Further, for the ack signal for effectively interfering main earphone to send, the channel of ID packet is sent with main earphone from earphone
The channel for replying audiogenic device ACK is identical.Meanwhile the ack signal in order to effectively interfere main earphone to send, transmitted by earphone
The ack signal that the time slot of bluetooth ID packet is sent with main earphone partly overlaps.
Specifically, the bluetooth packet for the reply ACK that the bluetooth ID packet transmitted by the earphone is sent relative to main earphone shifts to an earlier date spy
The fixed time, for example, 4us.It is, the reply that the synchronization character sequence of the bluetooth ID packet transmitted by the earphone is sent with main earphone
The leading character and part synchronization character overlapping sequences of the bluetooth packet of ACK, and with the other of the bluetooth packet of the reply ACK of main earphone transmission
Part is not overlapped.
The sequential relationship of NULL packet and the ID packet sent from earphone that main earphone replys ACK and NAK may refer to Fig. 3.
NULL packet includes 4us leading character, and 64us synchronization character leads symbol and the packet header 54us after 4us.ID packet includes 4us leading character, and 64us is synchronous
Word.ID packet ratio NULL packet shifts to an earlier date 4us and sends.
The audio data being not properly received to effectively promote audiogenic device to retransmit from earphone improves 3dB hair from earphone
Send the transmission power of ID packet.
Fig. 8 shows transmitting-receiving timing when failing in the A2DP link according to the embodiment of the present application four from earphone CRC check
Schematic diagram.
Specifically, as shown in figure 8, main earphone receives, first 2DH5 packet is correct, and the TX time slot after 3125us is sent
NULL (solid line of TX time slot in Fig. 7) is to reply audiogenic device ACK.CRC fails when receiving first 2DH5 packet from earphone, because
And send interference signal, i.e. ID packet (dotted line of TX time slot in Fig. 8).The NULL and exist from the ID packet that earphone is sent that main earphone is sent
Identical channel, time slot relationship are as shown in Figure 3.In this way, will lead to audiogenic device from the ID packet that earphone is sent cannot be properly received
The ack signal that main earphone is replied causes audiogenic device to retransmit 2DH5.Main earphone and the 2DH5 that repeating transmission is all properly received from earphone
Afterwards, main earphone sends NULL to reply ACK, does not send any packet from earphone.In this way, audiogenic device can be properly received main earphone hair
The ACK that replys of NULL, and new audio data is sent in next time slot.The above process can make to greatly increase from earphone just
Probability of the acknowledgement to 2DH5 audio data.
When Fig. 9 is shown in the A2DP link according to the embodiment of the present application four from earphone synchronization failure or packet header mistake
Receive and dispatch time diagram.
As shown in figure 9, main earphone receives, first 2DH5 packet is correct, and the TX time slot after 3125us sends NULL to reply
Audiogenic device ACK.Synchronization failure or packet header mistake when receiving first 2DH5 packet from earphone, thus in 621us (relative to indigo plant
The TX time slot that tooth technical specification defines shifts to an earlier date 4us, i.e., is in advance 621us from 625us) after TX time slot send ID packet (dotted line institute
Show), then in 1871us, (the TX time slot defined relative to bluetooth specification shifts to an earlier date 4us, i.e., is in advance from 1875us
(the TX time slot relative to specification definition shifts to an earlier date 4us, i.e., is in advance from 3125us for TX time slot and 3121us after 1871us)
TX time slot after 3121us) continues to send ID packet.
The NULL that TX time slot of the main earphone after 3125us the is sent and ID sent from TX time slot of the earphone after 3121us
For packet in identical channel, time slot relationship is as shown in Figure 3.In this way, sent from earphone ID packet (such as Fig. 9, ID packet shown in dotted line with
The NULL packet portion of solid line is overlapped) it will lead to the ACK that audiogenic device cannot be properly received main earphone reply, lead to audiogenic device weight
Send out 2DH5.
Main earphone and after being all properly received the 2DH5 of repeating transmission from earphone, main earphone sends NULL to reply ACK, not from earphone
Send any packet.In this way, audiogenic device can be properly received the ACK that the NULL of main earphone hair is replied, and sent out in next time slot
Send new audio data.The above process can make to receive 2DH5 audio data from earphone maximum probability.
In the case where main earphone is properly received audiogenic device audio data, do not promote if sending interference signal from earphone
Make audiogenic device retransmitted audio data or re-transmission time time-out, is not properly received current audio data Bao Ershou from earphone
When to new packets of audio data, pass through between principal and subordinate's earphone from earphone according to the sequence number or gap information of the audio data of loss
Bluetooth wireless connection request main earphone to forward audio data, to improve the reliability for obtaining audio data from earphone.If
Main earphone can not forward the audio data of loss, and packet loss is eliminated by audio post-processing, that is, use Discarded Packets compensation technology PLC
(Packet Loss Concealment)。
Using the voice data communication system in the embodiment of the present application, packets of audio data is being not properly received from earphone
When, the interference signal for interfering main earphone to audiogenic device transmission response message is sent, audiogenic device retransmitted audio number is promoted
According to packet；To improve the reliability for obtaining audio data from earphone.
Embodiment five
Structural schematic diagram shown in fig. 6 can be referred to according to the structure of the helmet of the embodiment of the present application five comprising main ear
Machine and from earphone, wireless communication protocol is bluetooth.Main earphone is by Bluetooth wireless communication agreement with smart phone or tablet computer
Equal audiogenic devices, which are established, to be wirelessly connected, and realizes voice transfer.Main earphone and from earphone also by Bluetooth protocol establish be wirelessly connected,
Main earphone is given from earphone and provides main earphone with the wireless link information between audiogenic device, convenient for source of sound is received and parsed from earphone
Equipment is sent to the audio data of main earphone.When being not properly received audiogenic device audio data from earphone, main earphone passes through
Bluetooth connection between principal and subordinate forwards the audio data lost from earphone.
Figure 10 shows the transmitting-receiving time diagram of the HFP/eSCO link according to the embodiment of the present application five.
As shown in Figure 10, by taking HFP/eSCO link as an example, main earphone and from earphone simultaneously receive audiogenic device send
2EV3 packet.After main earphone is properly received 2EV3, the TX time slot after 625us sends 2EV3 and answering mobile phone ACK.Main earphone mistake
After receiving 2EV3, then the TX time slot after 625us sends 2EV3 and answering mobile phone NAK.It is properly received 2EV3 from earphone,
TX time slot after 625us does not send any packet.From earphone garbled-reception 2EV3, then in 621us (when relative to the TX for standardizing definition
Gap shifts to an earlier date 4us, i.e., is in advance 621us from 625us) after TX time slot send interference signal on the identical channel of main earphone, that is,
Bluetooth ID packet, to interfere audiogenic device to be properly received ACK or NAK that main earphone is replied.
If main earphone and being all properly received 2EV3 from earphone, audiogenic device can receive the 2EV3 that main earphone is replied and
ACK, and main earphone ACK or NAK is replied with POLL or NULL.If main earphone garbled-reception 2EV3, is properly received from earphone
2EV3, mobile phone can receive the 2EV3 and NAK that main earphone is replied, and retransmit 2EV3 and reply main earphone ACK or NAK.If from
Earphone garbled-reception 2EV3, the 2EV3 for interfering main earphone to send out from earphone hair ID, causes audiogenic device to retransmit 2EV3 and replys main ear
Machine NAK.Until main earphone or until from earphone be all properly received 2EV3 voice data, alternatively, until maximum allowable re-transmission time
Number.
The sequential relationship of 2EV3 packet and the ID packet from earphone distinctive signal that main earphone replys ACK may refer to Fig. 4.2EV3
Including 4us leading character, 64us synchronization character leads the data payload of symbol and the packet header 54us and length not etc. after 4us.Before ID includes 4us
Lead symbol, 64us synchronization character.ID packet ratio 2EV3 packet shifts to an earlier date 4us and sends.
As shown in Figure 10, after main earphone receives first 2EV3 that audiogenic device is sent, the TX time slot after 625us is sent
2EV3 simultaneously replys ACK or NAK, the TX time slot after first 2EV3 that earphone garbled-reception audiogenic device is sent, after 621us
Send ID packet on the identical channel of main earphone (with the partly overlapping dotted line ID packet of 2EV3).
At this point, audiogenic device is not properly received the 2EV3 that main earphone is sent, then 2EV3 is retransmitted in next time slot and returned
At this moment multiple NAK main earphone and is properly received the 2EV3 of audiogenic device repeating transmission from earphone, main earphone replys 2EV3 and ACK.Thus
Main earphone and the voice data that can be received by audiogenic device transmission from earphone.
In the case where main earphone is properly received the 2EV3 of audiogenic device transmission, if the interference signal sent from earphone is not
Promote audiogenic device retransmitted audio data or re-transmission time time-out, the language in current eSCO link gaps can be lost from earphone
Sound data.If be not properly received current speech data from earphone and retransmit window more than eSCO link, it can lead to from earphone
The bluetooth wireless connection crossed between principal and subordinate's earphone requests main earphone forwarding 2EV3 voice data, obtains 2EV3 to improve from earphone
The reliability of voice data.
If main earphone can not forward the 2EV3 voice data of loss, packet loss is eliminated by audio post-processing, that is, uses PLC
(Packet Loss Concealment)。
For above-mentioned HFP/eSCO link, the voice data that audiogenic device is sent to main earphone is monophonic call voice.
After listening to from earphone, arrange the identical time with main earphone and play simultaneously, to make main earphone and from the identical language of earphone broadcasting
Sound.
Using the voice data communication system in the embodiment of the present application, packets of audio data is being not properly received from earphone
When, the interference signal for interfering main earphone to audiogenic device transmission response message is sent, audiogenic device retransmitted audio number is promoted
According to packet；To improve the reliability for obtaining audio data from earphone.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although the preferred embodiment of the application has been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the application range.
Obviously, those skilled in the art can carry out various modification and variations without departing from the essence of the application to the application
Mind and range.In this way, if these modifications and variations of the application belong to the range of the claim of this application and its equivalent technologies
Within, then the application is also intended to include these modifications and variations.
Claims (19)
1. a kind of voice data communication method characterized by comprising
Second equipment receives the audiogenic device and is sent to according to the wireless link information between audiogenic device and the first equipment
The packets of audio data of one equipment；
When second equipment is not properly received the packets of audio data, interference signal is sent at the first moment, the interference signal is used
In the sound for interfering first equipment to send at the second moment to the audiogenic device when being properly received the packets of audio data
Answer information ACK；
Wherein, the second equipment sends the channel of interference signal and sends response message to the audiogenic device for first equipment
The channel of ACK；First moment is at the time of shifting to an earlier date than the second moment or delay scheduled duration；The scheduled duration is less than sound
One of source device receives fuzzy window.
2. the method according to claim 1, wherein data entrained by the interference signal and the response are believed
It is at least partly different to cease data entrained by ACK.
3. according to the method described in claim 2, it is characterized in that, when using bluetooth between first equipment and audiogenic device
When connection, the interference signal is bluetooth characteristic ID packet；The ID packet includes leading character field and synchronization character field；The interference
The synchronization character sequence that the synchronization character field of synchronization character sequence and the response message ACK that the synchronization character field of signal carries carries
It is different.
4. a kind of voice data communication method characterized by comprising
Second equipment receives the audiogenic device and is sent to according to the wireless link information between audiogenic device and the first equipment
The packets of audio data of one equipment；
When second equipment is not properly received the packets of audio data, interference signal is sent, the interference signal is described for interfering
The response message ACK that first equipment is sent when being properly received the packets of audio data to the audiogenic device；
Wherein, the second equipment sends the channel of interference signal and sends response message to the audiogenic device for first equipment
The channel of ACK；Data entrained by the interference signal and data entrained by the response message ACK are at least partly different.
5. method as claimed in claim 4, it is characterised in that: the interference signal is bluetooth characteristic ID packet；The ID packet
Include leading character field and synchronization character field；The synchronization character sequence and the response that the synchronization character field of the interference signal carries are believed
Cease the synchronization character sequence difference that the synchronization character field of ACK carries.
6. method as claimed in claim 4, it is characterised in that: the synchronization character sequence of the bluetooth characteristic ID packet is set according to second
Standby Bluetooth address generates.
7. method according to claim 1 or 4, which is characterized in that the packets of audio data that is not properly received is the sound
When frequency data packet synchronization failure or packet header mistake, second equipment shifts to an earlier date scheduled duration in next time slot and sends interference signal.
8. method according to claim 1 or 4, which is characterized in that further include:
If second equipment according to the sequence number or gap information of the packets of audio data confirm certain packets of audio data not by
It is properly received, then the forwarding request of the packets of audio data is sent to first equipment, in the forwarding request described in carrying
The sequence number or gap information of packets of audio data.
9. method according to claim 1 or 4, which is characterized in that the transmission power of the interference signal is more than or equal to institute
State the transmission power that the first equipment sends ACK to the audiogenic device.
10. a kind of audio communication device characterized by comprising
First receiving module, for receiving the source of sound and setting according to the wireless link information between audiogenic device and the first equipment
The standby packets of audio data for being sent to the first equipment；
First sending module, for sending interference signal at the first moment when not being properly received the packets of audio data；It is described
Interference signal is for interfering first equipment to set at the second moment to the source of sound when being properly received the packets of audio data
The response message ACK that preparation is sent；
Wherein, the channel for sending interference signal is channel of first equipment to audiogenic device transmission ACK；Described first
Moment is at the time of shifting to an earlier date than the second moment or delay scheduled duration；The scheduled duration is less than a reception mould of audiogenic device
Paste window.
11. equipment according to claim 10, which is characterized in that data entrained by the interference signal and the response
Data entrained by information ACK are at least partly different.
12. equipment according to claim 10, which is characterized in that blue when being used between first equipment and audiogenic device
When tooth connects, the interference signal is bluetooth characteristic ID packet；The ID packet includes leading character field and synchronization character field；It is described dry
Disturb synchronization character sequence and the synchronization character sequence of the synchronization character field carrying of the response message ACK that the synchronization character field of signal carries
Column are different.
13. a kind of audio communication device characterized by comprising
Second receiving module, for receiving the source of sound and setting according to the wireless link information between audiogenic device and the first equipment
The standby packets of audio data for being sent to the first equipment；
Second sending module, for when not being properly received the packets of audio data, sending interference signal, the interference signal is used
In the response message ACK for interfering first equipment to send when being properly received the packets of audio data to the audiogenic device；
Wherein, the channel for sending interference signal is channel of first equipment to audiogenic device transmission response message ACK；
Data entrained by the interference signal and data entrained by the response message ACK are at least partly different.
14. equipment as claimed in claim 13, which is characterized in that the interference signal is bluetooth characteristic ID packet；The ID packet
Including leading character field and synchronization character field；The synchronization character sequence and the response that the synchronization character field of the interference signal carries
The synchronization character sequence that the synchronization character field of information ACK carries is different.
15. equipment as claimed in claim 13, it is characterised in that: the synchronization character sequence of the bluetooth characteristic ID packet is according to second
The Bluetooth address of equipment generates.
16. equipment described in 0 or 13 according to claim 1, which is characterized in that the packets of audio data that is not properly received is described
When packets of audio data synchronization failure or packet header mistake, second equipment shifts to an earlier date scheduled duration in next time slot and sends interference letter
Number.
17. equipment described in 0 or 13 according to claim 1, which is characterized in that further include:
Forwarding module, for the sequence number or gap information according to the packets of audio data confirm certain packets of audio data not by
When being properly received, the first equipment of Xiang Suoshu sends the forwarding request of the packets of audio data, in the forwarding request described in carrying
The sequence number or gap information of packets of audio data.
18. equipment described in 0 or 13 according to claim 1, which is characterized in that the transmission power of the interference signal is more than or equal to
First equipment sends the transmission power of ACK to the audiogenic device.
19. a kind of voice data communication system characterized by comprising
First equipment receives packets of audio data from audiogenic device for establishing Radio Link with audiogenic device；And it will be set with source of sound
Wireless link information between standby is sent to the second equipment；
Second equipment, second equipment are the audio communication device as described in any one of claim 10-18.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910476568.3A CN109995479A (en) | 2019-06-03 | 2019-06-03 | A kind of voice data communication method, system and audio communication device |
| CN201910961041.XA CN110708142A (en) | 2019-06-03 | 2019-10-11 | Audio data communication method, system and equipment |
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| CN201910476568.3A CN109995479A (en) | 2019-06-03 | 2019-06-03 | A kind of voice data communication method, system and audio communication device |
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| CN201910961041.XA Pending CN110708142A (en) | 2019-06-03 | 2019-10-11 | Audio data communication method, system and equipment |
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