CN109660971A - Wireless headset and communication means for wireless headset - Google Patents
Wireless headset and communication means for wireless headset Download PDFInfo
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- CN109660971A CN109660971A CN201811479680.4A CN201811479680A CN109660971A CN 109660971 A CN109660971 A CN 109660971A CN 201811479680 A CN201811479680 A CN 201811479680A CN 109660971 A CN109660971 A CN 109660971A
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- earphone
- frame
- audio frequency
- frequency data
- data frame
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Classifications
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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
-
- 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
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
-
- 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
- H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
- H04L1/0083—Formatting with frames or packets; Protocol or part of protocol for error control
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1041—Mechanical or electronic switches, or control elements
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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
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
Abstract
This disclosure relates to a kind of wireless headset and the communication means for wireless headset.The wireless headset includes main earphone and establishes linking bluetooth from earphone, main earphone and another equipment to carry out Bluetooth communication with another equipment, and the relevant parameter of linking bluetooth is sent to from earphone, to listen to the Bluetooth signal from another equipment from earphone.One earphone is configured as: in the case where it has correctly received the packet header of Bluetooth audio frequency data frame but does not have correctly received Bluetooth audio frequency data frame, the first frame of the only information comprising its packet header for having correctly received Bluetooth audio frequency data frame is sent to another earphone；Another earphone is configured as: in the case where it has correctly received Bluetooth audio frequency data frame and receives the first frame, sending the 2nd ECC frame to an earphone.The wireless headset and communication means can improve the reliability of Bluetooth transmission；Reduce the re-transmission of audio data frame；The synchronism of Bluetooth audio frequency data frame can also be improved to optimizing stereophonic effect.
Description
Technical field
This disclosure relates to which earphone and the communication means for earphone, more particularly, to wireless headset and are used for nothing
The communication means of line earphone.
Background technique
With the raising of social progress and living standards of the people, earphone has become the essential daily necessity of people.It passes
Wired earphone unite by conducting wire connection smart machine (such as smart phone, laptop, tablet computer etc.), this will limit pendant
The action of wearer is especially inconvenient in sports ground conjunction.Meanwhile it the winding of earphone cable and pullling and stethoscope effect all shadows
Ring user experience.Common bluetooth headset eliminates the line between earphone and smart machine, but there are still connect between the ear of left and right
Line.
True wireless stereo headset comes into being.The communication mode of current true wireless headset is: by smart machine and very
Main earphone in wireless headset establishes linking bluetooth, and first by data such as music, voice or other data groupings, (packet has
When also referred to as " wrap ") etc. main earphone is transferred to Blue-tooth communication method, then by main earphone by the data forwarding received give from
Earphone.In such wireless headset and communication means, main earphone needs completely to have with communication equipment and transmitting respectively from earphone
Data are imitated, the data volume of transmission is big, and the reliability of Bluetooth transmission is low, and the power consumption of main earphone is big, the cruise duration of wireless headset
It is short.
Summary of the invention
The disclosure is provided to solve the above-mentioned problems in the prior art.
The communication means for needing a kind of wireless headset and wireless headset, it is correct from another equipment to can be improved wireless headset
The ability of Bluetooth audio frequency data frame is received, the reliability of wireless headset Bluetooth transmission is increased；Another equipment is reduced to Bluetooth audio frequency
The re-transmission of data frame；Both principal and subordinate's earphones can also be improved and receive the synchronism of Bluetooth audio frequency data frame from another equipment to excellent
Change stereophonic effect.
According to the first scheme of the disclosure, a kind of wireless headset is provided, including main earphone and from earphone, the main earphone quilt
It is configured to establish linking bluetooth with another equipment to carry out Bluetooth communication with another equipment, the main earphone is by the indigo plant
The relevant parameter that tooth chain connects sends to described from earphone, listens to from earphone so as to described and receives the indigo plant from another equipment
Tooth signal；It the main earphone and is configured as from an earphone in earphone: having correctly received Bluetooth audio frequency data frame at it
Packet header but in the case where being not properly received Bluetooth audio frequency data frame, sends first frame, the first frame to another earphone
It only include the information in its packet header for having correctly received Bluetooth audio frequency data frame；The main earphone and from another ear in earphone
Machine is configured as: in the case where it has correctly received Bluetooth audio frequency data frame and receives the first frame, to one
Earphone sends the second frame, and second frame includes the error correcting code by encoding to received Bluetooth audio frequency data frame.
In some embodiments, it is not properly received the audio number that Bluetooth audio frequency data frame includes Bluetooth audio frequency data frame
Fail the case where verifying by cyclic redundancy check code according to portion.
In some embodiments, one earphone is also configured to have correctly received Bluetooth audio frequency data frame at it
In the case of to another earphone send third frame, and the third frame includes by received Bluetooth audio frequency data frame volume
The error correcting code that code obtains.
In some embodiments, one earphone is according to the transmission from another equipment and to another equipment
The priority of transmission and the relativity of the main earphone and the signal quality from earphone select.
In some embodiments, another described earphone is configured as: being received third frame at it and is utilized the third
In the case where obtaining correct Bluetooth audio frequency data frame after the error correcting code error correction for including in frame, or indigo plant is correctly received at it
Tooth audio data frame and in the case where receiving the first frame, sends confirmation response bag to another equipment.
In some embodiments, another described earphone is configured as: being not properly received Bluetooth audio frequency data at it
Frame and in the case where being not received by third error correcting code, denies response bag or not to described another to another equipment transmission
Equipment sends response bag.
In some embodiments, another described earphone is additionally configured to, in the case where it receives third frame: not being had at it
Have have correctly received Bluetooth audio frequency data frame and using after the error correcting code error correction for including in received third frame still without obtaining just
In the case where true Bluetooth audio frequency data frame, denies response bag to another equipment transmission or do not sent out to another equipment
Send response bag.
In some embodiments, another described earphone is additionally configured to: being not received by the first frame and described at it
In the case where third frame, denies response bag to another equipment transmission or do not send response bag to another equipment.
According to the alternative plan of the disclosure, a kind of communication means for wireless headset is provided, the wireless headset includes
Main earphone and from earphone, the main earphone are configured as establishing linking bluetooth with another equipment to carry out with another equipment
Bluetooth communication, the communication means include: the relevant parameter of the linking bluetooth is sent to by the main earphone it is described from ear
Machine listens to from earphone so as to described and receives the Bluetooth signal from another equipment；From the main earphone and from earphone
Select an earphone；The packet header of Bluetooth audio frequency data frame is had correctly received in a selected earphone but is not properly received
In the case where Bluetooth audio frequency data frame, first frame is sent from one earphone to another earphone, the first frame is only wrapped
The information in the packet header of Bluetooth audio frequency data frame is had correctly received containing one earphone；It is had correctly received in another described earphone
Bluetooth audio frequency data frame and in the case where receiving the first frame from one earphone, from another described earphone to
One earphone sends the second frame, and second frame includes by encoding to received Bluetooth audio frequency data frame
Error correcting code.
In some embodiments, it is not properly received the audio number that Bluetooth audio frequency data frame includes Bluetooth audio frequency data frame
Fail the case where verifying by cyclic redundancy check code according to portion.
In some embodiments, the communication means further include: have correctly received Bluetooth audio frequency number in one earphone
In the case where according to frame, third frame is sent from one earphone to another earphone, and the third frame includes by described
The error correcting code that Bluetooth audio frequency data frame received by one earphone encodes.
In some embodiments, according to the transmission from another equipment and to the priority of the transmission of another equipment
And the relativity of the main earphone and the signal quality from earphone selects one earphone.
In some embodiments, the communication means further include: receive third frame and utilization in another described earphone
In the case where obtaining correct Bluetooth audio frequency data frame after the error correcting code error correction for including in the third frame, or described another
In the case that a earphone is correctly received Bluetooth audio frequency data frame and receives the first frame, from another described earphone to
Another equipment sends confirmation response bag.
In some embodiments, the communication means further include: be not properly received bluetooth in another described earphone
Audio data frame and in the case where being not received by third error correcting code, sends no from another described earphone to another equipment
Recognize response bag or does not send response bag to another equipment.
In some embodiments, the communication means further include: in another described earphone in the feelings for receiving third frame
Under condition: be not properly received Bluetooth audio frequency data frame at it and using the error correcting code error correction for including in received third frame after still
In the case where not obtaining correct Bluetooth audio frequency data frame, deny answering from another described earphone to another equipment transmission
It answers packet or does not send response bag to another equipment.
In some embodiments, the communication means further include: be not properly received bluetooth sound in one earphone
In the case where the packet header of frequency data frame, deny response bag or not to described from one earphone to another equipment transmission
Another equipment sends response bag.
In some embodiments, the third frame and the first frame receive corresponding Bluetooth audio frequency in one earphone
It is transmitted after Bluetooth audio frequency data frame in the n-th unit interval of data frame, second frame is passed in another described earphone
It is transmitted after response bag in the N+1 unit interval and/or its subsequent unit interval of defeated response bag, wherein N is to appoint
What natural number.
Using the wireless headset and communication means according to the various embodiments of the disclosure, selecting an earphone blue as receiving
It, can in the case that the preferred earphone but the earphone of tooth audio data frame only have correctly received the packet header of Bluetooth audio frequency data frame
It benefits from another earphone and one ear is improved to being properly received using the error correcting code from it for Bluetooth audio frequency data frame
The accuracy rate of the audio data of machine reduces another equipment to Bluetooth audio frequency to increase the reliability of wireless headset Bluetooth transmission
The re-transmission of data frame, and then the stereophonic effect of both improvement principal and subordinate's earphones.
Detailed description of the invention
In the attached drawing being not drawn necessarily to scale, identical appended drawing reference can describe similar in different views
Component.Same reference numerals with letter suffix or different letter suffix can indicate the different instances of similar component.Attached drawing
Generally through citing rather than the mode of limitation shows various embodiments, and reinstates with specification and claims one
It is illustrated in the disclosed embodiments.In due course, make to be referred to identical reference in all the appended drawings same
One or similar part.Such embodiment is illustrative, and is not intended as the exhaustive or exclusive of the present apparatus or method
Embodiment.
Fig. 1 shows the configuration schematic diagram of the wireless headset according to the embodiment of the present disclosure, the wireless headset and another equipment
It is communicated；
Fig. 2 shows according to the embodiment of the present disclosure wireless headset with as another equipment the exemplary smart machine into
The diagram of the synchronous method of row；
Fig. 3 show wireless headset according to the embodiment of the present disclosure and the exemplary smart machine as another equipment into
The timing diagram of the method for row communication；
Fig. 4 (a) and Fig. 4 (b) shows the structure chart of the bluetooth physical frame according to the embodiment of the present disclosure；
Fig. 5 shows the structure chart in the packet header of the confirmation response according to the embodiment of the present disclosure/deny response bag；
Fig. 6 shows the flow chart of the communication means for wireless headset according to the embodiment of the present disclosure.
Specific embodiment
To make those skilled in the art better understand the technical solution of the disclosure, with reference to the accompanying drawing and specific embodiment party
Formula elaborates to the disclosure.Embodiment of the disclosure work is further retouched in detail in the following with reference to the drawings and specific embodiments
It states, but not as the restriction to the disclosure.The wording of " first ", " second " and " third " that use in the disclosure, only purport
Corresponding feature is being distinguished, is not representing and needs such sequence, also may not only indicate singular.
Fig. 1 shows the configuration schematic diagram of the wireless headset according to the embodiment of the present disclosure.As shown in Figure 1, the wireless headset
100 include main earphone 101 and from earphone 102, the main earphone 101 be configured as establishing with another equipment 103 linking bluetooth with
Just Bluetooth communication is carried out with another equipment 103, wherein the main earphone 101 is by including the nothings such as bluetooth, short-range communication
Line communication mode, by the relevant parameter of the linking bluetooth, such as the Bluetooth address of another equipment 103, main earphone 101 with
The information such as the encryption parameter of 103 linking bluetooth of another equipment are sent to from earphone 102, to listen to and connect from earphone 102
The Bluetooth signal from another equipment 103 is received, includes the Bluetooth audio frequency data of transmitting audio-frequency information in the Bluetooth signal
Frame.Wherein, it main earphone 101 and is configured as from an earphone in earphone 102: having correctly received Bluetooth audio frequency data frame at it
Packet header but in the case where being not properly received Bluetooth audio frequency data frame, send first frame to another earphone, described first
Frame only includes the information in its packet header for having correctly received Bluetooth audio frequency data frame.Also, the main earphone 101 and from earphone
Another earphone in 102 is configured as: being had correctly received Bluetooth audio frequency data frame at it and is received the feelings of the first frame
Under condition, the second frame is sent to one earphone, second frame includes by received Bluetooth audio frequency data frame volume
The error correcting code that code obtains.Hereinafter, in order to be differentiated with the frame for being only properly received information comprising packet header, also will likely include
The frame of error correcting code is known as error correcting code frame (abbreviation ECC frame).In some embodiments, it is not properly received Bluetooth audio frequency data frame
Include the case where that the audio data portion of Bluetooth audio frequency data frame fails by verifying code check, check code includes but is not limited to recycle
Redundancy check (CRC) code, the situation such as CRC code check results have the case where bit errors.
Although being shown in Fig. 1 using main earphone 101 as the one earphone for sending first frame, this is only to show
Example, can also be on demand using one earphone from earphone 102 as transmission first frame.From earphone 102 by from main earphone
101 receive the relevant parameter of linking bluetooth, " can pretend " to carry out Bluetooth communication with another equipment 103 at main earphone 101, also
It is to say, undergoes the process for establishing linking bluetooth with another equipment 103 like that without main earphone 101 from earphone 102, but directly
" camouflage " carries out Bluetooth communication with another equipment 103 using the linking bluetooth that it is established at main earphone 101.
It is configured to directly pass Bluetooth audio frequency data frame with another equipment 103 of single bluetooth devices as a result,
It is defeated by main earphone 101 and from both earphones 102, the audio number forwarded from main earphone 102 can only be received by thus comparing from earphone 102
According to the prior art of frame, the synchronism of the audio signal of two earphones can be improved.Note that the Bluetooth audio frequency having correctly received
Data frame carries out in the obtained code stream of channel coding, including Bluetooth audio frequency data and error correcting code two parts, and the latter such as second
The data length of frame is considerably shorter than the former；And only comprising having correctly received the first of the information in the packet header of Bluetooth audio frequency data frame
Frame, data length are also considerably shorter than Bluetooth audio frequency data portion.As a result, according to the wireless headset of each embodiment of the disclosure
In, main earphone and from only transmitted between earphone error correction code portion and indicate packet header reception condition frame, thus significantly reduce
Volume of transmitted data between two earphones, to reduce the delay between two earphones and data transmission stability.That is toilet
One earphone of selection is not properly received complete Bluetooth audio frequency data frame, but only has correctly received its packet header,
It can use the error correction for including from another earphone received second (ECC) frame for having correctly received Bluetooth audio frequency data frame
Code, successfully carrying out error correction to the bit-errors of Bluetooth audio frequency frame, (one earphone significantly improves being properly received for packet header
Utilize the success rate of error correcting code error correction), so that the accuracy for reproducing the audio data frame of audio is improved, so as to improve institute
The stereophonic effect of wireless headset 100 is stated, while re-transmission of another equipment 103 to Bluetooth audio frequency data frame can also be reduced.?
After one earphone receives the 2nd ECC frame, Bluetooth audio frequency frame that not only can be wrong to current bit carries out error correction；If
Current Bluetooth audio frame is the retransmission frame of another equipment 103, then one earphone can use the 2nd ECC frame to connecing in the past
The wrong Bluetooth audio frequency frame of the bit received carries out error correction.
In some embodiments, one earphone can be according to the transmission from another equipment 103 and to described another
The priority of the transmission of one equipment 103 and the relativity of the main earphone 101 and the signal quality from earphone 102 are selected
It selects.Particularly, if application scenarios, which are more taken notice of from another equipment 103, is properly received Bluetooth audio frequency data frame, main ear may be selected
Machine 101 and from earphone 102 signal quality preferably that as one earphone；And if application scenarios more take notice of it is another
Equipment 103 is properly received the feedback signal (such as response bag) from two earphones, then selects main earphone 101 and from earphone 102
That better another earphone as described in of middle signal quality.In some embodiments, signal quality can be by signal-to-noise ratio
(SNR), received signal intensity instruction (RSSI), at least one parameter in packet error probability (PER) characterize.In some realities
It applies in example, the earphone for receiving preferable signal quality may be selected one earphone.In this way, one earphone is higher general
Rate can have correctly received the Bluetooth audio frequency data frame from another equipment 103, so as to send more bands to another earphone
The ECC frame (referred to as the 3rd ECC frame) of error correcting code, the Bluetooth audio frequency data frame for enabling the latter to have more parts bit errors are entangled
Just, to reduce another equipment 103 to the re-transmission of Bluetooth audio frequency data frame and increase by wireless headset 100 and another
The reliability of Bluetooth transmission in the system that one equipment 103 is constituted.In some embodiments, it is only had correctly received there are two earphone
In the case where Bluetooth audio frequency data frame, just confirmation response (ACK) point can be sent from another described earphone to another equipment 103
Group is then conducive to another described earphone to another equipment by the way that the preferable earphone of signal quality is selected as another earphone
The 103 ACK containings sent are changed places to be properly received by another equipment 103.Specifically, in that conduct of selection signal better quality
In the case where another the described earphone for sending response bag, another possible described earphone has correctly received Bluetooth audio frequency data
Frame, and one earphone is then not properly received Bluetooth audio frequency data frame, for example, only having correctly received the feelings in its packet header
Under condition, also can benefit from signal quality, preferably another earphone is properly received Bluetooth audio frequency data frame, using coming from
The error correcting code frame for including in its 2nd ECC frame successfully carries out error correction, to take into account another equipment correctly connecing to feedback signal
The accurate received effect of receipts and the Bluetooth audio frequency data frame from another equipment.
It in some embodiments, can real-time or near-real-time monitoring master by chip built-in in wireless headset 100
Earphone 101 and the signal quality received by the earphone 102, and dynamically switch one earphone accordingly, so that it is guaranteed that energy
Enough meet the demand instantly of application scenarios.In some embodiments, it another is set from the transmission of another equipment 103 and to described
The priority of standby 103 transmission can be preset, can also by the chip according to the received ginseng about application scenarios
Number carrys out dynamic mapping.The signal quality for two earphones for selecting one earphone to be based on can be real-time or almost real-time
Signal quality is also possible to the average signal quality of long period.
Fig. 2 shows the figures for the method 200 that the wireless headset and another equipment according to the embodiment of the present disclosure synchronize
Show.In some embodiments, another equipment may include that cellular phone, mobile PC, tablet computer, portable intelligent help
Any one of hand, intelligent wearable device.Hereinafter the example using smart machine as another equipment is to the disclosure
It is illustrated.
(do not show as shown in Fig. 2, the wireless headset including principal and subordinate's earphone is received using radio-frequency front-end 201 from smart machine
Radiofrequency signal out) is sampled using 202 pairs of received radiofrequency signals of institute of analog-digital converter to obtain digital signal, then benefit
It is handled with synchronous and demodulation module 203 to obtain timing synchronization errors 204 and carrier synchronization error 205.Timing Synchronization misses
One of both poor 204 and carrier synchronization error 205 or both can be fed to phaselocked loop 206, to be gone using phaselocked loop 206
The crystal oscillation frequency for adjusting the earphone chip of wireless headset, so that wireless headset can be same in clock frequency with smart machine
Frequently.Also, time synchronization signals are synchronized with the starting point of the time slot of the bluetooth transmission signal of smart machine, in this way include master
It is achieved that from the wireless headset of earphone synchronous with the clock of smart machine.Principal and subordinate's earphone is all same with smart machine clock
Step can guarantee that the music signal that principal and subordinate's earphone is played is synchronous, so as to improve sound quality (such as, but not limited to stereophonic effect).
As described above, according to the demand of concrete application scene, first frame can be transferred to from main earphone 101 from earphone
102, it can also be by being transferred to main earphone from earphone 102, below by taking former transmission direction as an example, to illustrate wireless headset 100
The timing of the method communicated with the smart machine 103.Firstly, main earphone 101 and from earphone 102 for example via figure
Synchronous method shown in 2 realizes synchronous with the clock of smart machine 103.
In general, Bluetooth communication can be carried out with the time interval of predetermined length, phase is carried out in each predetermined amount of time
The information answered sends and receives, and such predetermined amount of time can also be referred to as a Bluetooth frame sometimes.In some embodiments
In, each predetermined amount of time can occupy the time of a time slot or several time slots.According to Bluetooth protocol, the time of a time slot
It is 625 μ s.One Bluetooth frame can often occupy multiple time slots when using Advanced Audio Distribute Profile Stack (A2DP)；And
When using hands-free framework agreement (HFP), a time slot is generally occupied.
As shown in figure 3, smart machine 103 in n-th predetermined amount of time (N is natural number) sends Bluetooth audio frequency data
Frame, and establish the main earphone 101 of linking bluetooth therewith and listen to the slave earphone 102 of Bluetooth signal simultaneously from smart machine from it
103 receive Bluetooth audio frequency data frame.
As shown in figure 3, in some embodiments, transmission and main ear of the smart machine 103 for Bluetooth audio frequency data frame
Machine 101 and the earphone 102 of reception from to(for) Bluetooth audio frequency data frame occupy the preceding part of n-th predetermined amount of time；Main earphone
101 for indicating that it has correctly received the transmission of the first frame in the packet header of Bluetooth audio frequency data frame and from earphone 102 for first
The reception of frame occupies the rear part of n-th predetermined amount of time.In addition, main earphone 101 and/or from earphone 102 to smart machine
103 send response bag, then are next predetermined times in the n-th predetermined amount of time for sending and receiving Bluetooth audio frequency data frame
Section, that is, completed in the N+1 predetermined amount of time.In some embodiments, as shown in figure 3, from from earphone 102 to intelligence
Equipment 103, which is sent, to be confirmed/denies response bag (ACK/NACK response bag), and sending and receiving for the response bag can be at N+1
It is partially completed before predetermined amount of time.First frame is being received from earphone 102 and has correctly received Bluetooth audio frequency from earphone 102
In the case where data frame, the 2nd ECC frame can be sent to main earphone 101 in the rear of response bag in the N+1 predetermined amount of time,
Correspondingly, main earphone 102 can receive the 2nd ECC frame in the rear part in the N+1 predetermined amount of time, thus using should
The error correcting code for including in 2nd ECC frame successfully corrects the mistake in Bluetooth audio frequency data frame.
Although Fig. 3 is shown after the n-th predetermined amount of time of transmission first frame in adjacent the N+1 predetermined amount of time
The 2nd ECC frame is transmitted, this is merely exemplary.In some embodiments, the transmission of the 2nd ECC frame can be predetermined in the n-th
It is executed in other subsequent predetermined amount of time of period.
In the case where main earphone 101 has correctly received Bluetooth audio frequency data frame, the timing diagram in Fig. 3 can corresponding change.
Particularly, the rear part in n-th predetermined amount of time, main earphone 101 are sent by the Bluetooth audio frequency received by it
The third frame for the error correcting code that data frame encodes, and receive the third frame from earphone 102 and can use in the third frame and wrap
The error correcting code contained carries out error correction to its received Bluetooth audio frequency data frame of institute.Correspondingly, it is not necessarily in the N+1 predetermined amount of time
The transmission of the 2nd ECC frame is carried out after the transmission of response bag.
The structure of the bluetooth physical frame according to the embodiment of the present disclosure is illustrated below with reference to Fig. 4 (a) and Fig. 4 (b).It is blue
There are two types of message transmission rates for tooth transmission, and one is basic rate, another kind is enhancing rate.The packet format of basic rate is such as
Shown in Fig. 4 (a), bluetooth physical frame includes 3 fields, is to visit respectively on the direction from least significant bit to most significant bit
Ask the fields such as code 401, packet header 402 and payload 403, in which: access code 401 is the mark with piconet (piconet),
For timing synchronization, migration, paging and inquiry；Packet header 402 includes the information for Bluetooth link control；Payload
503 carrying effective informations, in the disclosure mainly Bluetooth audio frequency data.Technical term " Bluetooth audio frequency used herein
Data frame " indicates to remove in bluetooth physical frame audio number corresponding to payload 403 after the information such as access code 401, packet header 402
According to.Shown in the packet format such as Fig. 4 (b) for enhancing rate, bluetooth physical frame includes 6 fields, from least significant bit to highest
On the direction of significance bit, it is access code 404 respectively, packet header 405, protection interval 406, synchronizes 407, reinforces rate payload
The fields such as 408 and packet tail 409, wherein the visit in access code 404, packet header 405 and reinforcement rate payload 408 and Fig. 4 (a)
Ask that code 401, packet header 402 are similar with payload 403, this will not be repeated here.Protection interval 406 indicate packet header 405 with synchronous 407 it
Between interval time；Synchronous 407 include synchronizing sequence, and usually differential phase keying (DPSK) modulates used synchronizing sequence；Packet tail
409 use different settings for different modulating mode.In some embodiments, it for synchronous data, is effectively carrying
Lotus 403 and reinforcement rate payload 408 are finally, be also provided with such as 16 bits for cyclic redundancy check.
The error correcting code contained in ECC frame described herein is to payload 403 and to reinforce rate payload 408
In audio data Error Correction of Coding, can use various coding modes, including but not limited in institute (RS) coding, BCH
(Bose, Ray-Chaudhuri and Hocquenghem) coding etc..In some embodiments, ECC frame is each more than physical layer
Layer, the layers multiplexed Bluetooth agreement such as bluetooth medium access control (mac) layer, bluetooth host control interface layer can be adopted in physical layer
With the symbol rate of 2Mb/s, modulation system can be quadrature phase shift keying (QPSK) or GFSK Gaussian Frequency Shift Keying (GFSK).Bluetooth physics
Layer can use the symbol rate of 1Mb/s, and ECC frame uses higher symbol rate, can transmit more correction bits, can have and preferably entangle
Wrong ability.
In some embodiments, ACK/NACK packet described in the disclosure can be realized using packet header as shown in Figure 5,
Wherein, on the direction from least significant bit to most significant bit, which sequentially includes following field: logical transport address
501, type 502, flow 503, response instruction 504, sequence numbering method 505 and stem error control 506, wherein response refers to
Show that 504 be a bit, indicate that this is an ACK packet when being 1, indicates that this is a NACK packet when being 0.
Fig. 6 shows the flow chart of the communication means 600 for wireless headset according to the embodiment of the present disclosure, the wireless ear
Machine can be using according to the wireless headset of each embodiment of the disclosure comprising main earphone and from earphone, the main earphone is matched
It is set to and establishes linking bluetooth with another equipment to carry out Bluetooth communication with another equipment.Note that " used in Fig. 6
One frame ", " the second frame " and " third frame " have with according to " first frame " of each embodiment of the disclosure, " second (ECC) frame " and
" third (ECC) frame " identical art-recognized meanings, this will not be repeated here.
As shown in fig. 6, the communication means 600 includes the following steps: the relevant parameter of the linking bluetooth by main earphone
It sends to described from earphone, is listened to from earphone so as to described and receive the Bluetooth signal (step 601) from another equipment；
Select an earphone as first frame and/or third frame sender's (step 602) from the main earphone and from earphone, as showing
Example, the selection can be dynamically be also possible to it is pre-set.In step 603, whether a selected earphone is determined
Have correctly received Bluetooth audio frequency data frame.If it is, sending third frame (step from one earphone to another earphone
610), then, utilize the error correcting code for including in third frame to received Bluetooth audio frequency data frame by another described earphone
Error correction (step 611) is carried out, if error correction success (being "Yes" in the result of step 612), sends ACK response to another equipment
Packet (is expressed as step), NACK response bag otherwise, which is sent, to another equipment (is expressed as step)。
If it is determined that a selected earphone is not properly received Bluetooth audio frequency data frame, (result of step 603 is
"No"), but determine its packet header for having correctly received Bluetooth audio frequency data frame (result of step 604 is "Yes"), then by described one
A earphone sends first frame (step 605) to another earphone.Then, in step 606, whether just another described earphone is determined
Really receive Bluetooth audio frequency data frame: if it is, sending the second frame (step from another described earphone to one earphone
607), and to another equipment ACK response bag is sent；Otherwise, NACK response bag is sent to another equipment.In step 608, described one
A earphone carries out error correction to received Bluetooth audio frequency data frame using the error correcting code for including in the second frame.
In one embodiment, if another described earphone is not received by the first frame that one earphone is sent
And another described earphone is not received by the third frame that one earphone is sent, from another described earphone to another equipment
It sends NACK response bag and (is expressed as step).Under another embodiment, if it is determined that a selected earphone does not have
Bluetooth audio frequency data frame (result of step 603 is "No") is had correctly received, and determines that it is not properly received Bluetooth audio frequency
The packet header (result of step 604 is "No") of data frame, then send NACK response bag from one earphone to another equipment.This
Two kinds of embodiments will not be implemented simultaneously, be only possible to selection one.
The Bluetooth communication of different subpatterns can be used to wireless headset and smart machine for different application scenarios.Under
Face is described in detail the wireless headset and its communication means of each embodiment of the disclosure under various subpatterns.
It is described below from earphone as first frame and/or the first mode of the sender of third frame.
First mode
From headphone monitor and receive the Bluetooth audio frequency data frame that smart machine sends to main earphone.In some predetermined time
It is described in section (such as n-th predetermined amount of time shown in Fig. 3) that the indigo plant that the smart machine is sent is had correctly received from earphone
In the case where tooth audio data frame, channel coding is made to this Bluetooth audio frequency data frame first to obtain error correcting code, then to main earphone
Send i.e. a 3rd ECC frame of the ECC frame with error correcting code.It is described from earphone be not properly received Bluetooth audio frequency data frame but
In the case where the packet header for having correctly received Bluetooth audio frequency data frame, then a frame without error correcting code is sent from earphone to main earphone
(referred to as first frame), the first frame indicate the information that packet header is had correctly received from earphone.
In some embodiments, indigo plant is also not properly received being not properly received Bluetooth audio frequency data frame from earphone
In the case where the packet header of tooth audio data frame: can also then send the frame the (the referred to as the 4th without error correcting code to main earphone from earphone
Frame), the instruction of the 4th frame is not properly received Bluetooth audio frequency data frame from earphone and is also not properly received Bluetooth audio frequency number
According to the information in the packet header of frame；Or frame can not be sent to main earphone from earphone.
Main earphone receives the Bluetooth audio frequency data frame that the smart machine is sent.When the institute in a certain predetermined amount of time
After stating the Bluetooth audio frequency data frame that main earphone receives the smart machine transmission, main earphone is continued to from described from ear
3rd ECC frame of machine.Bluetooth audio frequency data frame is properly received in main earphone or main earphone receives the third with error correcting code
ECC frame and using correct Bluetooth audio frequency data frame is obtained after error correcting code error correction in the case where, then to smart machine send one
ACK packet.Receiving the 3rd ECC frame with error correcting code in main earphone, (this indicates to have had correctly received Bluetooth audio frequency data from earphone
Frame), but be not properly received Bluetooth audio frequency data frame and using after error correcting code error correction still without obtaining correct Bluetooth audio frequency data
In the case where frame, then a NACK packet is sent to smart machine.It is not properly received Bluetooth audio frequency data frame in main earphone, and
And the 4th frame for being not received by the 3rd ECC frame or receiving without error correcting code (indicates to be not properly received indigo plant from earphone at this time
Tooth audio data frame) in the case where, then a NACK packet is sent out then to smart machine.
In some embodiments, Bluetooth audio frequency data frame is had correctly received in main earphone and receive first frame (this expression
The packet header of Bluetooth audio frequency data frame is had correctly received from earphone) in the case where, it is sent from the main earphone to the smart machine
ACK response bag.This means that main earphone can send the 2nd ECC frame to from earphone, the 2nd ECC frame includes to received
Thus the error correcting code that Bluetooth audio frequency data frame encodes can benefit from from the 2nd ECC frame that main earphone obtains from earphone
Error correcting code realize successful correction so that two earphones can finally have correctly received Bluetooth audio frequency data frame.
In some embodiments, in the case where being not properly received the packet header of Bluetooth audio frequency frame from earphone, this meaning
Even if main earphone provide it ECC frame and can not also carry out successful correction to its received Bluetooth audio frequency data frame, then from earphone
NACK response bag is sent to smart machine.
In some embodiments, under any scene for sending NACK packet according to the disclosure, main earphone can also be with
Any response bag is not sent to smart machine, smart machine is in the case where receiving NACK packet, or in preset sound
It answers in the case where being not received by any response bag in the period, Bluetooth audio frequency data frame can be retransmitted.
Main earphone is similar with first mode as the mode of first frame and/or the sender of third frame, and this will not be repeated here.This
Outside, although exemplary embodiment has been described herein, range include it is any and all based on the disclosure have etc.
Same element, modification, omission, combination (for example, scheme that various embodiments are intersected), reorganization or the embodiment changed.Claim
Element in book will be construed broadly as based on the language used in claim, however it is not limited in the present specification or the application
Implementation during described example, example is to be interpreted as nonexcludability.Therefore, this specification and example be intended to only by
It is considered example, real scope and spirit are as indicated by following following claims and the full scope of its equivalent.
The sequence of each step in the disclosure is only exemplary, and not restrictive.Do not influencing the disclosure
Realization in the case where (in the case where not destroying the logical relation between required step), can to step execution sequence into
Row adjustment, the various embodiments obtained after adjustment are still fallen within the scope of this disclosure.
Above description is intended to illustrative rather than restrictive.For example, above-mentioned example (or one or more side
Case) it can be in combination with one another.Such as other embodiments can be used when reading foregoing description in those of ordinary skill in the art.
In addition, various features can be grouped together to simplify the disclosure in above-mentioned specific embodiment.This should not be construed as
A kind of not claimed disclosed feature is necessary intention for any claim.On the contrary, subject of the present invention can be with
Less than whole features of specific disclosed embodiment.To which following claims is incorporated to herein as example or embodiment
In specific embodiment, wherein each claim is independently as individual embodiment, and consider that these embodiments can be with
It is combined with each other with various combinations or arrangement.The scope of the present invention should refer to appended claims and these claims are entitled
The full scope of equivalent form determines.
Claims (17)
1. a kind of wireless headset, including main earphone and from earphone, the main earphone is configured as establishing bluetooth chain with another equipment
It connects to carry out Bluetooth communication with another equipment, which is characterized in that
The main earphone sends the relevant parameter of the linking bluetooth to described from earphone, listens to and connects from earphone so as to described
Receive the Bluetooth signal from another equipment；
It the main earphone and is configured as from an earphone in earphone: in the packet header that it has correctly received Bluetooth audio frequency data frame
But in the case where being not properly received Bluetooth audio frequency data frame, first frame is sent to another earphone, the first frame is only
Information comprising its packet header for having correctly received Bluetooth audio frequency data frame；
It the main earphone and is configured as from another earphone in earphone: having correctly received Bluetooth audio frequency data frame at it and connect
In the case where receiving the first frame, the second frame is sent to one earphone, second frame includes by received
The error correcting code that encodes of Bluetooth audio frequency data frame.
2. wireless headset according to claim 1, which is characterized in that being not properly received Bluetooth audio frequency data frame includes
The audio data portion of Bluetooth audio frequency data frame fails the case where verifying by cyclic redundancy check code.
3. wireless headset according to claim 1, which is characterized in that one earphone is also configured to correct at it
It receives and sends third frame to another earphone in the case where Bluetooth audio frequency data frame, and the third frame includes by being connect
The error correcting code that the Bluetooth audio frequency data frame received encodes.
4. wireless headset according to claim 1, which is characterized in that one earphone is according to from another equipment
The relativity of the priority from the transmission to another equipment and the main earphone and the signal quality from earphone of transmission and
To select.
5. wireless headset according to claim 3, which is characterized in that another described earphone is configured as: in its reception
In the case where to third frame and using correct Bluetooth audio frequency data frame is obtained after the error correcting code error correction for including in the third frame,
Or in the case where it is correctly received Bluetooth audio frequency data frame and receives the first frame, sent out to another equipment
Send confirmation response bag.
6. wireless headset according to claim 3, which is characterized in that another described earphone is configured as: not having at it
In the case where having correctly received Bluetooth audio frequency data frame and being not received by third error correcting code, deny to another equipment transmission
Response bag does not send response bag to another equipment.
7. wireless headset according to claim 5, which is characterized in that another described earphone is additionally configured to, in its reception
In the case where third frame: being not properly received Bluetooth audio frequency data frame at it and entangled using include in received third frame
After error code error correction still without correct Bluetooth audio frequency data frame is obtained in the case where, deny response bag to another equipment transmission
Or response bag is not sent to another equipment.
8. wireless headset according to claim 5, which is characterized in that one earphone is additionally configured to: at it without just
In the case where the packet header for really receiving Bluetooth audio frequency data frame, deny response bag or not to described to another equipment transmission
Another equipment sends response bag.
9. a kind of communication means for wireless headset, the wireless headset includes main earphone and from earphone, the main earphone quilt
It is configured to establish linking bluetooth with another equipment to carry out Bluetooth communication, the feature of the communication means with another equipment
Be include:
The relevant parameter of the linking bluetooth sent to by the main earphone described from earphone, is listened to simultaneously so as to described from earphone
Receive the Bluetooth signal from another equipment；
An earphone is selected from the main earphone and from earphone；
The packet header of Bluetooth audio frequency data frame is had correctly received in a selected earphone but is not properly received Bluetooth audio frequency
In the case where data frame, first frame is sent from one earphone to another earphone, the first frame only includes described one
A earphone has correctly received the information in the packet header of Bluetooth audio frequency data frame；
Another described earphone have correctly received Bluetooth audio frequency data frame and receive from one earphone described
In the case where one frame, the second frame is sent from another described earphone to one earphone, second frame includes by institute
The error correcting code that the Bluetooth audio frequency data frame received encodes.
10. communication means according to claim 9, which is characterized in that be not properly received Bluetooth audio frequency data frame packet
The audio data portion for including Bluetooth audio frequency data frame fails the case where verifying by cyclic redundancy check code.
11. communication means according to claim 9, which is characterized in that the communication means further include: in one ear
In the case that machine has correctly received Bluetooth audio frequency data frame, third frame, and institute are sent from one earphone to another earphone
Stating third frame includes by the error correcting code that Bluetooth audio frequency data frame encodes received by one earphone.
12. communication means according to claim 11, which is characterized in that according to the transmission from another equipment and to institute
The relativity of the priority and the main earphone and the signal quality from earphone of stating the transmission of another equipment is described to select
One earphone.
13. communication means according to claim 11, which is characterized in that the communication means further include: described another
A earphone receives third frame and using obtaining correct Bluetooth audio frequency data after the error correcting code error correction for including in the third frame
In the case where frame, or Bluetooth audio frequency data frame is correctly received in another described earphone and receives the first frame
In the case of, confirmation response bag is sent from another described earphone to another equipment.
14. communication means according to claim 11, which is characterized in that the communication means further include: described another
In the case that a earphone is not properly received Bluetooth audio frequency data frame and is not received by third error correcting code, by it is described another
Earphone denies response bag to another equipment transmission or does not send response bag to another equipment.
15. communication means according to claim 13, which is characterized in that the communication means further include: described another
A earphone is in the case where receiving third frame: being not properly received Bluetooth audio frequency data frame at it and utilizes received third
After the error correcting code error correction for including in frame still without correct Bluetooth audio frequency data frame is obtained in the case where, by another described earphone
Deny response bag to another equipment transmission or does not send response bag to another equipment.
16. communication means according to claim 13, which is characterized in that the communication means further include: one
In the case that earphone is not properly received the packet header of Bluetooth audio frequency data frame, sent out from one earphone to another equipment
It send and denies response bag or do not send response bag to another equipment.
17. communication means described in any one of 1-16 according to claim 1, which is characterized in that the third frame and described
First frame is in Bluetooth audio frequency data in the n-th unit interval that one earphone receives corresponding Bluetooth audio frequency data frame
It is transmitted after frame, second frame is in N+1 unit interval of another earphone transmission response bag and/or its is subsequent
It is transmitted after response bag in unit interval, wherein N is any natural number.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811479680.4A CN109660971B (en) | 2018-12-05 | 2018-12-05 | Wireless earphone and communication method for wireless earphone |
| US16/244,056 US10341758B1 (en) | 2018-11-29 | 2019-01-09 | Wireless audio system and method for wirelessly communicating audio information using the same |
| US16/450,996 US10798477B2 (en) | 2018-11-29 | 2019-06-24 | Wireless audio system and method for wirelessly communicating audio information using the same |
| US15/930,329 US11064280B2 (en) | 2018-11-29 | 2020-05-12 | Wireless audio system and method for wirelessly communicating audio information using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811479680.4A CN109660971B (en) | 2018-12-05 | 2018-12-05 | Wireless earphone and communication method for wireless earphone |
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| Publication Number | Publication Date |
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| CN109660971A true CN109660971A (en) | 2019-04-19 |
| CN109660971B CN109660971B (en) | 2021-11-23 |
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| CN201811479680.4A Active CN109660971B (en) | 2018-11-29 | 2018-12-05 | Wireless earphone and communication method for wireless earphone |
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