CN111935796B - Wireless headset for wireless communication, wireless communication method and medium - Google Patents
Wireless headset for wireless communication, wireless communication method and medium Download PDFInfo
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- CN111935796B CN111935796B CN202011013448.9A CN202011013448A CN111935796B CN 111935796 B CN111935796 B CN 111935796B CN 202011013448 A CN202011013448 A CN 202011013448A CN 111935796 B CN111935796 B CN 111935796B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
- H04M1/6041—Portable telephones adapted for handsfree use
- H04M1/6058—Portable telephones adapted for handsfree use involving the use of a headset accessory device connected to the portable telephone
- H04M1/6066—Portable telephones adapted for handsfree use involving the use of a headset accessory device connected to the portable telephone including a wireless connection
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- 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
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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
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/02—Details of telephonic subscriber devices including a Bluetooth interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/06—Details of telephonic subscriber devices including a wireless LAN interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2420/00—Details of connection covered by H04R, not provided for in its groups
- H04R2420/07—Applications of wireless loudspeakers or wireless microphones
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- Engineering & Computer Science (AREA)
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- Acoustics & Sound (AREA)
- Headphones And Earphones (AREA)
Abstract
The present disclosure relates to a wireless headset for wireless communication, a wireless communication method, and a medium. The wireless headset includes a first headset and a second headset. Each of the earphones includes: a first antenna having a radiation distribution in a horizontal direction larger than a radiation distribution in a vertical direction; a second antenna having a radiation distribution in a vertical direction larger than a radiation distribution in a horizontal direction; a switching member configured to: performing switching of the first antenna and the second antenna according to a switching signal; and a processor. The processor issues a switching signal to the switching component such that the second antenna is enabled for communication over the wireless link between the headset and the smart device and the first antenna is enabled for communication over the wireless link between the first and second headsets, depending on the wireless link over which the wireless headset is to communicate. Thus, the strength and quality of the antenna transmission and reception signals can be flexibly improved for various wireless links, and the interference resistance of wireless communication via the wireless headset can be improved.
Description
Technical Field
The present disclosure relates to the field of headsets, and more particularly, to a wireless communication method, a wireless communication system, and a medium for an earphone and a plurality of smart devices.
Background
With the social progress and the improvement of the living standard of people, the earphone becomes an indispensable living article for people. Traditional wired headsets are connected to smart devices (e.g., smartphones, laptops, tablets, etc.) via wires, which, however, can limit the wearer's mobility, especially in sports scenarios. At the same time, the twisting and pulling of the earphone cord and the stethoscope effect all affect the listening experience of the earphone wearer. Although the common Bluetooth headset cancels a wire between the headset and the intelligent device, a wire still exists between the left ear and the right ear. Thus, true wireless stereo headphones come into play.
The existing true wireless earphones generally comprise a first earphone and a second earphone which are respectively used for left and right ears, a single antenna is usually arranged in each earphone, and no special attention is paid to the radiation distribution of the antenna, so that when wireless communication is carried out between the two earphones and between each earphone and intelligent equipment, the strength of a receiving and transmitting signal of the antenna is weak, the quality is poor, the receiving and transmitting signal is sometimes seriously influenced by external interference and noise, and the use experience of a user is obviously influenced. Obviously, the existing earphones cannot provide a technical solution to the above-mentioned problems.
Disclosure of Invention
The present disclosure is provided to solve the above-mentioned problems occurring in the prior art.
There is a need for a wireless headset, a wireless communication method and medium for wireless communication, which respectively provide a first antenna having a radiation distribution in a horizontal direction greater than that in a vertical direction and a second antenna having a radiation distribution in a vertical direction greater than that in a horizontal direction in each (monaural) headset, and can switch to an antenna having a radiation distribution whose dominant direction matches a wireless link through which the wireless headset is to communicate, according to the condition of the wireless link, thereby flexibly improving the strength and quality of signals transmitted and received by the antenna for various wireless links, and improving the interference resistance of wireless communication via the wireless headset.
According to a first aspect of the present disclosure, there is provided a wireless headset for wireless communication, the wireless headset comprising a first headset and a second headset. Each of the first and second earpieces can include a first antenna, a second antenna, a switching component, and a processor. The radiation distribution of the first antenna in the horizontal direction is larger than that in the vertical direction; and a second antenna having a radiation distribution in a vertical direction greater than a radiation distribution in a horizontal direction. The switching component may be configured to: performing switching of the first antenna and the second antenna according to a switching signal. The processor may be configured to: depending on the wireless link via which the wireless headset is to communicate, a switching signal is issued to the switching component such that the second antenna is enabled for communication of the wireless link between the wireless headset and the smart device and the first antenna is enabled for communication of the wireless link between the first headset and the second headset.
According to a second aspect of the present disclosure, there is provided a wireless communication method of a wireless headset including a first headset and a second headset. The wireless communication method may include the following steps. And arranging a first antenna and a second antenna in each of the first earphone and the second earphone, so that the radiation distribution of the first antenna in the horizontal direction is larger than that in the vertical direction, and the radiation distribution of the second antenna in the vertical direction is larger than that in the horizontal direction. A condition of a wireless link over which the wireless headset is to communicate may be determined. The first and second antennas may then be switched depending on the wireless link over which the wireless headset is to communicate, such that the second antenna is enabled for communication over the wireless link between the wireless headset and the smart device and the first antenna is enabled for communication over the wireless link between the first and second headsets.
According to a third aspect of the present disclosure, a non-transitory computer storage medium disposed in each of wireless headsets and storing computer executable instructions is provided. The wireless earphone comprises a first earphone and a second earphone, each of the first earphone and the second earphone comprises a first antenna and a second antenna, the radiation distribution of the first antenna in the horizontal direction is larger than that in the vertical direction, and the radiation distribution of the second antenna in the vertical direction is larger than that in the horizontal direction. The computer executable instructions, when executed by a processor, perform a method of wireless communication. The wireless communication method may include: determining a condition of a wireless link over which the wireless headset is to communicate; switching the first and second antennas such that the second antenna is enabled for communication over the wireless link between the headset and the smart device and the first antenna is enabled for communication over the wireless link between the first and second headsets, depending on the wireless link over which the wireless headset is to communicate.
With the wireless headset, the wireless communication method, and the medium for wireless communication according to the embodiments of the present disclosure, it is possible to switch to an antenna having a radiation distribution whose dominant direction matches a wireless link through which the wireless headset is to communicate, according to the situation of the wireless link, thereby flexibly improving the strength and quality of antenna transmission and reception signals for various wireless links and improving the interference resistance of wireless communication via the wireless headset.
Drawings
In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments generally by way of example and not by way of limitation, and together with the description and claims serve to explain the disclosed embodiments. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.
Fig. 1 shows a schematic structural diagram of a wireless headset for wireless communication according to an embodiment of the present disclosure.
Fig. 2 illustrates a flowchart of an antenna switching process of a wireless headset for wireless communication according to an embodiment of the present disclosure.
Fig. 3(a) shows a configuration block diagram of a wireless headset for wireless communication according to an embodiment of the present disclosure.
Fig. 3(b) shows a schematic diagram of wireless communication of a wireless headset in a listening mode according to an embodiment of the present disclosure.
Fig. 4 shows a schematic configuration diagram of a first antenna and a second antenna in a wireless headset according to an embodiment of the present disclosure.
Fig. 5(a) illustrates a timing diagram of a wireless communication method of a wireless headset in a listening mode according to an embodiment of the present disclosure.
Fig. 5(b) illustrates a timing diagram of a wireless communication method of a wireless headset in a relay mode according to an embodiment of the present disclosure.
Fig. 6 shows a schematic circuit diagram in each of the wireless headsets according to an embodiment of the disclosure.
Fig. 7 shows a flow chart of the main steps of a wireless communication method of a wireless headset according to an embodiment of the present disclosure.
Detailed Description
For a better understanding of the technical aspects of the present disclosure, reference is made to the following detailed description taken in conjunction with the accompanying drawings. Embodiments of the present disclosure are described in further detail below with reference to the figures and the detailed description, but the present disclosure is not limited thereto. The order in which the various steps described herein are described as examples should not be construed as a limitation if there is no requirement for a context relationship between each other, and one skilled in the art would know that sequential adjustments may be made without destroying the logical relationship between each other, rendering the overall process impractical.
A wireless headset for wireless communication and a wireless communication method according to an embodiment of the present disclosure will be described in detail below with reference to the accompanying drawings.
Fig. 1 shows a schematic structural diagram of a wireless headset for wireless communication according to an embodiment of the present disclosure. The wireless headset is an anti-ear headset and may typically include a first headset and a second headset. Each of the first earphone and the second earphone may have a similar configuration, and the structure of a single earphone (first earphone or second earphone) will be described in detail below with reference to fig. 1.
As shown in fig. 1, each earphone may include a first antenna 101a, a second antenna 101b, a switching part 102, and a main chip 103. The radiation distribution of the first antenna 101a in the horizontal direction is larger than that in the vertical direction as shown by the radiation distribution diagram in the upper left corner, where the x-axis and the y-axis represent orthogonal directions in the horizontal plane, and the z-axis represents the vertical direction (up-down direction). As shown in the radiation distribution diagram at the lower left corner, the radiation distribution of the second antenna 101b in the vertical direction is larger than that in the horizontal direction. That is to say, the dominant radiation direction of the first antenna 101a is close to the horizontal direction, and is consistent with the connection direction in the case that two earphones are worn in the ear of the user, so that when the first antenna 101a is used exclusively for wireless communication between two ears (i.e., the first earphone and the second earphone), the signal strength and quality are better, and the anti-interference effect is better. Compared with the prior art, the dominant radiation direction of the second antenna 101b is close to the vertical direction, and under the condition that the first earphone and the second earphone of the earphone set are both worn in the ear of the user, the smart device is usually disposed at a position lower than the ear of the user, for example, in a pocket of clothes of the user, on a desk, on a support at a lower position, and the like, and the connection direction of each earphone and the smart device is also close to the vertical direction, so that when the second antenna 101b is used exclusively for wireless communication between each earphone and the smart device, the signal strength and quality are better, and the anti-interference effect is better.
The switching section 102 may be configured to perform switching of the first antenna 101a and the second antenna 101b as needed according to a switching signal from the main chip 103. In fig. 1, the main chip 103 is taken as an example of a main function circuit in each earphone, and it should be understood that the main function circuit is not limited thereto. The primary function circuitry is configured to perform primary functions of the respective headset such as, but not limited to, wireless communication functions (e.g., bluetooth communication, WIFI communication), noise reduction functions, VAD identification functions, and the like. The main functional circuitry may include a processor 104 and a memory 105. Note that, according to various units in various embodiments of the present disclosure, may be implemented as computer-executable instructions stored on a memory, which when executed by a processor may implement corresponding steps; or may be implemented as hardware with corresponding logical computing capabilities; or as a combination of software and hardware (firmware). The units may be integrated within a single headset (either the first headset or the second headset) to speed up the determination of various processes and reduce communication overhead. In some embodiments, the processor 104 may be implemented as any of an FPGA, an ASIC, a DSP chip, an SOC (system on a chip), an MPU (e.g., without limitation, Cortex), and the like. The processor 104 may be communicatively coupled to the memory 105 and configured to execute computer-executable instructions stored therein. Memory 105 may include Read Only Memory (ROM), flash memory, Random Access Memory (RAM), Dynamic Random Access Memory (DRAM) such as synchronous DRAM (sdram) or Rambus DRAM, static memory (e.g., flash memory, static random access memory), etc., on which computer-executable instructions are stored in any format. In some embodiments, computer executable instructions may be accessed by a processor, read from a ROM or any other suitable storage location, and loaded into RAM for execution by the processor to implement a wireless communication method in accordance with various embodiments of the present disclosure.
For convenience of description, the following description mainly takes the case that the processor 104 is implemented as an SOC (correspondingly, the main functional circuit is implemented as the main chip 103), but it should be understood that other implementations described above may be adopted, and are not described herein again.
The processor 104 may be configured to: depending on the wireless link via which the wireless headset is to communicate, a switching signal is issued to the switching component 102 such that the second antenna 101b is enabled for communication of the wireless link between the headset and the smart device and the first antenna 101a is enabled for communication of the wireless link between the first headset and the second headset. Note that "to communicate via a wireless link" may cover a case where communication is to be performed via the wireless link later but communication is not currently performed, or may cover a case where wireless communication is being performed via the wireless link; "the switching signal is sent to the switching means 102 in accordance with the condition of the wireless link through which the wireless headset is to communicate" may include sending a switching signal having different instruction contents in accordance with the condition, or may include not sending a switching signal in accordance with the condition, or the like. Take the wireless link between each headset (i.e. the first headset or the second headset) and the smart device as an example: for the former case, it is determined whether the second antenna 101b is currently enabled, and if so, a switch signal not requiring switching is issued or no switch signal is issued, and if not (the first antenna 101a is currently enabled or no antenna is currently enabled), a switch signal to switch to the second antenna 101b is issued; for the latter case, it is determined whether the second antenna 101b is currently enabled, and if so, a switch signal not requiring switching is issued or no switch signal is issued, and if not (the first antenna 101a is currently enabled), a switch signal to switch to the second antenna 101b is issued. In this way, the processor 104 can generate an appropriate switching signal according to the condition of the wireless link through which the wireless headset is to communicate, and act on the switching component 102 in an appropriate manner (for example, switching to the first antenna 101a or the second antenna 101b or the like with or without switching), so as to flexibly enable an antenna whose dominant radiation direction matches the communication direction of the wireless link, thereby improving the signal transceiving strength and quality of the wireless communication and improving the anti-interference effect. In some cases, the switching signal may be issued by software using a processor. In other cases, the hardware trigger time (e.g., N (positive integer) clock cycle times before the time of transmitting the wireless physical frame, for example, when the clock counter value reaches a certain value) may be configured by software, and the switching action is performed at the hardware trigger time. The advantage of hardware triggering is that software only needs to be configured in advance to switch at a precise moment, and at the moment of switching, the processor can process other tasks without software participation. On one hand, accurate time switching can be achieved, and on the other hand, the load of the processor is reduced.
Fig. 2 illustrates a flowchart of an antenna switching process of a wireless headset for wireless communication according to an embodiment of the present disclosure. Similarly, the antenna switching process may be performed by the processor 104. As shown in fig. 2, at step 201, a communication condition of the wireless headset may be determined. In fig. 2, a case that communication is performed via the wireless link at a later time but communication is not currently performed is taken as an example for explanation, but it should be understood that the present disclosure is not limited thereto, and those skilled in the art can also use the communication in the process of performing wireless communication via the wireless link by adjustment, and details are not described herein.
Further, at step 202, it may be determined whether the current headset is to communicate with the smart device via a wireless link. If not, at step 206, a determination may continue that communication is to be conducted between the first headset and the second headset via the wireless link.
In the case where the current earphone is to communicate with the smart device via the wireless link (affirmative decision in step 202), it may be decided in step 203 whether or not the first antenna (the first antenna 101a whose radiation distribution in the horizontal direction is larger than that in the vertical direction) is currently enabled. If the first antenna is currently enabled, a switching signal for switching to the second antenna (the second antenna 101b having a radiation distribution in the vertical direction larger than that in the horizontal direction) for communication is issued in advance in step 204, so that the second antenna having a dominant radiation direction suitable for the communication direction of the headset and the smart device is switched. If the second antenna is currently enabled instead of the first antenna (negative determination in step 203), i.e. the second antenna has been switched to a dominant radiation direction suitable for the communication direction of the headset with the smart device, no switching is needed in step 205, as long as the current switching state of the switching means is maintained.
In case communication is to be performed between the first headset and the second headset via the wireless link (affirmative decision in step 206), it may be decided in step 207 whether the second antenna is currently enabled. If the second antenna is currently enabled, a switch signal to switch to the first antenna for communication is issued in advance in step 208, so that the first antenna having the dominant radiation direction suitable for the communication direction between the first headset and the second headset is switched. If the first antenna is currently enabled instead of the second antenna (negative determination in step 207), i.e. the first antenna has been switched to a dominant radiation direction suitable for the communication method between the first and second headset, no switching is necessary in step 205, as long as the current switching state of the switching means is maintained.
Note that step 203 and step 207 may take other implementations. In some embodiments, it may also be determined in step 203 whether any antenna has not been enabled, and if not, a switching signal for switching to a second antenna (the second antenna 101b having a radiation distribution in the vertical direction larger than that in the horizontal direction) for communication may also be issued in step 204 in advance. Similar situation applies to step 207, which is not described herein.
Fig. 3(a) shows a configuration block diagram of the wireless headset 100 for wireless communication according to an embodiment of the present disclosure, and fig. 3(b) shows a schematic diagram of wireless communication of the wireless headset 100 in a listening mode according to an embodiment of the present disclosure. The following describes a wireless communication flow of the wireless headset 100 in the listening mode with reference to fig. 3(a) and 3 (b).
In some embodiments, the first earpiece 103a may include a first wireless communication unit 106a and the second earpiece 103b may include a second wireless communication unit 106 b. The first wireless communication unit 103a may be configured to: a first wireless link 301a is established for communication with the smart device 300 to receive audio data information from the smart device 300 via the first wireless link 301a and to transmit an acknowledgement packet (ACK/NACK) to the smart device 300. The first wireless communication unit 103a may be configured to associate communication parameters of the first wireless link 301a, such as but not limited to identification information such as a media access control (mac) address of the smart device 300, synchronization information, frequency band information, encryption parameters, etc., so that the second wireless communication unit 106b may listen and, via listening to the wireless link 301b, obtain audio data information from the smart device 300 and, if necessary, transmit an acknowledgement packet (ACK/NACK) to the smart device 300.
As shown in fig. 3(a), the first earphone 103a may further include a switching unit 109a, the second earphone 103b may further include a switching unit 109b, and the switching unit 109a and the switching unit 109b may be assigned to respectively perform the determination of the corresponding earphone regarding the antenna switching and issue a corresponding switching signal to drive the switching component 102 to enable/maintain the appropriate first antenna 101 a/second antenna 101 b.
In some embodiments, the first earpiece 103a may further include a third wireless communication unit 107a, the second earpiece 103b may further include a fourth wireless communication unit 107b, and the third wireless communication unit 107a and the fourth wireless communication unit 107b may be configured to: a second wireless link 302 between the first earpiece 103a and the second earpiece 103b is established in order to send an indication packet to the other earpiece via the second wireless link 302, the indication packet containing information whether its sender correctly received audio data from the smart device 300. As an example, the indication packet may include an ECC packet, and in case that a sender thereof correctly receives information of the audio data from the smart device 300, the ECC packet may contain an error correction code encoded for the correctly received audio data and not the audio data, so that the data amount thereof may be significantly smaller than the corresponding audio data packet. In some embodiments, when the sender sends an ECC packet, meaning that it correctly receives the information of the audio data from the smart device 300, the receiver may preferentially use the ECC packet with a smaller data amount to attempt to correct the error of the audio data intercepted by the sender, thereby improving the success rate and efficiency of the audio data error correction while reducing the communication load. As another example, the indication packet may also take other implementations (in the simplest form, such as an ACK/NACK packet) to convey information whether the sender correctly received the audio data from the smart device 300. With the benefit of the indication packet, the first earpiece 103a or the second earpiece 103b may reply to the smart device 300 with an ACK/NACK packet that embodies whether both the first earpiece 103a and the second earpiece 103b correctly received the audio data, for the smart device 300 to decide accordingly not to retransmit the audio data frame.
In some embodiments, the first earpiece 103a may further include a fifth wireless communication unit 108a, the second earpiece 103b may further include a sixth wireless communication unit 108b, and the fifth wireless communication unit 108a and the sixth wireless communication unit 108b may be configured to: a third wireless link 303 is established between the first earphone 103a and the second earphone 103b for transmitting interaction information between the earphones, such as, but not limited to, related communication parameters of the first wireless link 301a, synchronized playing information between the first earphone 103a and the second earphone 103b, frequency hopping information, simultaneous adjustment of volume of interaction information, command interaction information of master-slave switching, and the like. Note that the third wireless link 303 and the second wireless link 302 are independent of each other, and may employ communication modes (bluetooth, WIFI, etc.) different from each other.
Fig. 4 shows a schematic configuration diagram of a first antenna 401 and a second antenna 402 in a wireless headset according to an embodiment of the present disclosure. A one-ear headphone to be worn in the left ear is illustrated in fig. 4 as an example. In some embodiments, the first antenna 401 of the headset may be arranged on the upper part of the side facing away from the ear (i.e. the left side in fig. 4), so as to be as far away from the head as possible in the lateral direction, so that the radiated signal is not easily obscured by the head; the second antenna 402 may be disposed in a lower portion, such as but not limited to a hollow support pole of the headset, so that the radiated signal is not easily obscured by the headset member during transmission in a downward direction (e.g., a direction extending toward the ground). Through proper arrangement of the first antenna 401 and the second antenna 402 on the positions, shielding of the transceiving signals can be reduced, and then strength and quality of the transceiving signals are improved.
In some embodiments, the first antenna 401 may be a patch antenna, and the second antenna 402 may be a wire antenna. The inner side of the curved surface of the upper part of the earphone provides sufficient arrangement space for the patch antenna, the slender hollow support rod of the lower part of the earphone provides sufficient arrangement space for the linear antenna, and by adopting the antenna form, the two antennas can be embedded without changing the conventional earphone structure, so that the cost is reduced, and the antenna arrangement according to the various embodiments of the present disclosure has compatibility with various existing wireless earphones.
In some embodiments, each of the first antenna 401 and the second antenna 402 may be a patch antenna or a wire antenna. The patch antenna may be formed inside the case of the corresponding earphone via plating or laser engraving, and the wire antenna is folded around to be received inside the case of the corresponding earphone so as to be isolated from the outside via the case of the corresponding earphone. Therefore, each antenna can be prevented from directly contacting with the human body through the isolating piece, and the antenna is less affected by the static electricity of the human body. Furthermore, the existing surplus inner surface of the inner side of the shell of the corresponding earphone can be fully utilized, and the patch antenna with a sufficient area is formed through film coating or laser etching, so that the receiving and transmitting strength and quality of signals are ensured, and the anti-interference performance is improved. By using the spare accommodation space in the support rod of each earphone base, the wire antenna with a sufficient length (for example, about 30 mm) (which can ensure the receiving and transmitting strength and quality) can be coiled into a folded shape, so that the size can be reduced to about 3mm by 9mm, and the wire antenna can be conveniently accommodated and fixed in the spare accommodation space in the support rod. Thus, the existing redundant accommodating surface and accommodating space in each wireless earphone are fully utilized, two antennas with good signal receiving and transmitting quality are properly arranged in the wireless earphones, and meanwhile, the compact appearance of each wireless earphone is still maintained.
In some embodiments, the deviation of the maximum radiation direction of the first antenna 401 from the horizontal direction may be smaller than a first threshold, and the deviation of the maximum radiation direction of the second antenna 402 from the vertical direction may be smaller than a second threshold, so as to ensure that the maximum radiation direction of the first antenna 401 is closer to the connection direction between two earphones when the headset is worn in the ear, and the maximum radiation direction of the second antenna 402 is directed to the ground (or a smart device placed below the earphones in general) when the smart device is used, so that sufficient radiation intensity is ensured in the signal transmission direction, and the signal quality and the interference resistance are improved.
Fig. 5(a) illustrates a timing diagram of a wireless communication method of a wireless headset in a listening mode according to an embodiment of the present disclosure. For details of the listening mode, reference may be made to the description in conjunction with fig. 3(b), which is not described herein.
As shown in fig. 5(a), during a first time period 501 of an nth communication frame, a smart device may Transmit (TX) audio data information, a first headset may Receive (RX) audio data information from the smart device via a first wireless link, and a second headset may obtain (RX) audio data information from the smart device via a listening wireless link.
During a third time period 503 within the nth communication frame, other than the first time period 501, the first headset Transmits (TX) an indication packet (e.g., an ECC packet) via the second wireless link to the second headset, which may contain information whether its sender correctly received audio data from the smart device, which the second headset may Receive (RX).
During the second time period 502 of the (N + 1) th communication frame, the second headset may transmit an acknowledgement packet (TX (ACK or NACK)) to the smart device via listening to the wireless link. In some embodiments, during the second time period 502 of the (N + 1) th communication frame, the first headset may transmit an acknowledgement packet to the smart device via the first wireless link.
In some embodiments, prior to the first time period 501 of the nth communication frame, the second antenna may be switched in advance for communication if the first antenna is currently enabled.
In some embodiments, a switch signal to switch to the first antenna for communication may be issued by the processor before the third time period 503 within the nth communication frame, and a switch signal to switch to the second antenna for communication may be issued by the processor after the third time period 503 within the nth communication frame. Wireless communication between the earphones with the communication direction mainly in the horizontal direction is performed in the third time period 503, wireless communication between the smart device and the earphones with the communication direction mainly in the vertical direction is performed in the first time period 501 before the third time period and in the second time period 502 after the third time period, wireless communication between the earphones is performed by switching the enabled antenna in the first time period 501 to the first antenna with the radiation dominant direction in the horizontal direction, and wireless communication between the smart device and the earphones is performed by switching the enabled antenna in the third time period 503 to the second antenna with the radiation dominant direction in the vertical direction, so that the matched antenna is ensured to be enabled in the whole range for various wireless communication in the Nth communication frame and the (N + 1) th communication frame, the overall signal strength of the wireless communication is better, and the signal quality is better, the anti-interference performance is better. In addition, the two kinds of switching respectively and effectively utilize the surplus time period between the first time period 501 and the third time period 503 and the surplus time period between the third time period 503 and the second time period 502, so that the switching mode can be well compatible with the common communication time sequence between the intelligent device and the earphone in the listening mode.
Fig. 5(b) illustrates a timing diagram of a wireless communication method of a wireless headset in a relay mode according to an embodiment of the present disclosure. In the forwarding mode, unlike the listening mode, the first headset receives audio data from the smart device and places the audio data in the audio memory, and then the first headset reads the audio data from the audio memory or acquires the audio data of one of the channels and forwards the audio data to the second headset. Transmitting (TX) audio data information by the smart device to the first headset and Receiving (RX) audio data information by the first headset during a fourth time period 504 of the nth communication frame, different from the listening mode; during a fifth time period 505 of the (N + 1) th communication frame, an acknowledgement packet (TX (ACK or NACK)) whether the audio data information was correctly received is transmitted by the first headset to be Received (RX) by the smart device. Then, in a sixth time period of the (N + 2) th communication frame, forwarding (TX), by the first headset to the second headset for Reception (RX), the received audio data information (which may contain audio data information received by the first headset from the smart device earlier in time than the nth communication frame); during a seventh time period of the N +3 th communication frame, an acknowledgement packet (TX (ACK or NACK)) whether the forwarded audio data information was correctly received is transmitted by the second headset to be Received (RX) by the first headset.
In some embodiments, prior to the fourth time period 504, it may be detected in advance whether a first antenna suitable for wireless communication between the smart device and the headset is enabled, and if not, the first antenna may be switched in advance to be used for wireless communication between the smart device and the headset. In some embodiments, after the fifth time period of the N +1 th frame, it may be detected whether a second antenna suitable for wireless communication between the earpieces is enabled, and if not, the second antenna is switched in advance to be used for wireless communication between the first earpiece and the second earpiece. In some embodiments, after the seventh period of N +3 communication frames, especially in case that the second headset correctly receives the audio data information forwarded by the first headset, the first antenna suitable for wireless communication between the smart device and the headset may also be switched to be ready for the next subsequent wireless communication between the smart device and the headset.
Fig. 6 shows a schematic circuit diagram in each of the wireless headsets according to an embodiment of the disclosure. As shown in fig. 6, the processor is implemented via an SOC chip (see the main chip 103), the switching part 102 may include a radio frequency switch chip, the radio frequency switch chip may have a first PIN 1, a second PIN 2, and a third PIN 3, the first PIN 1 may be connected to the first antenna 101a via the first antenna matching circuit 601, the second PIN 2 may be connected to the second antenna 101b via the second antenna matching circuit 602, and the third PIN 3 may be connected to PIN 4 of the SOC chip 103. In some embodiments, PIN 4 may be a dedicated interface of the main chip 103 or one of the designated GPIO interfaces. As indicated by the dashed line and its connected dashed line box, in some embodiments, the first antenna matching circuit 601 may be implemented as a simple circuit shown in the dashed line box, which includes a grounded capacitor 601b and an inductor 601a connected to the non-grounded end of the capacitor 601b, and the parameters of the capacitor 601b and the inductor 601a may be set to match the impedance of the corresponding antenna (i.e., the first antenna 101 a). In some embodiments, the second antenna matching circuit 602 may also adopt a similar circuit structure, which is not described herein.
In some embodiments, PIN 3 of the rf switch chip 102 and PIN 4 of the main chip 103 may be directly connected via a wire or may be connected via an rf matching circuit (not shown).
Fig. 7 shows a flow chart of the main steps of a wireless communication method of a wireless headset according to an embodiment of the present disclosure. As shown in fig. 7, the wireless communication method first starts in step 701, where a first antenna and a second antenna are provided in each of the first headset and the second headset. The radiation distribution of the first antenna in the horizontal direction is larger than that of the second antenna in the vertical direction, and the radiation distribution of the first antenna in the horizontal direction is larger than that of the second antenna in the horizontal direction, so that the first antenna and the second antenna are suitable for wireless communication between the earphones and the intelligent device.
Next, at step 702, a determination can be made as to the wireless link over which the wireless headset is to communicate. For example, whether the current headset is to communicate with the smart device via a wireless link, whether the first headset is to communicate with the second headset via a wireless link, whether there is no wireless communication, etc. In step 703, the first and second antennas may be switched according to the wireless link over which the wireless headset is to communicate, such that the second antenna is enabled for communication over the wireless link between the headset and the smart device and the first antenna is enabled for communication over the wireless link between the first and second headsets. Specific examples of switching the first antenna and the second antenna according to the condition of the wireless link via which the wireless headset is to communicate according to various embodiments of the present disclosure may be cited herein independently or in combination with each other, as a further description of step 703, which is not repeated herein.
In some embodiments, a non-transitory computer storage medium disposed in each of the wireless headsets (i.e., the first and second headsets) and storing computer executable instructions is also provided. Each of the earphones may include a first antenna having a radiation distribution in a horizontal direction larger than a radiation distribution in a vertical direction, and a second antenna having a radiation distribution in a vertical direction larger than the radiation distribution in the horizontal direction. The computer executable instructions, when executed by a processor, may perform a method of wireless communication in accordance with various embodiments of the present disclosure, including: determining a condition of a wireless link over which the wireless headset is to communicate; switching the first and second antennas such that the second antenna is enabled for communication over the wireless link between the headset and the smart device and the first antenna is enabled for communication over the wireless link between the first and second headsets, depending on the wireless link over which the wireless headset is to communicate. The wireless communication method according to various embodiments of the present disclosure is incorporated herein and will not be described in detail herein.
Moreover, although exemplary embodiments have been described herein, the scope thereof includes any and all embodiments based on the disclosure with equivalent elements, modifications, omissions, combinations (e.g., of various embodiments across), adaptations or alterations. The elements of the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.
The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. In addition, in the foregoing detailed description, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.
Claims (17)
1. A wireless headset for wireless communication, the wireless headset comprising a first headset and a second headset, wherein each of the first headset and the second headset comprises:
a first antenna having a radiation distribution in a horizontal direction larger than a radiation distribution in a vertical direction;
a second antenna having a radiation distribution in a vertical direction larger than a radiation distribution in a horizontal direction;
a switching member configured to: performing switching of the first antenna and the second antenna according to a switching signal; and
a processor configured to:
issuing a switching signal to the switching component in dependence on the wireless link via which the wireless headset is to communicate, such that the second antenna is enabled for communication of the wireless link between the wireless headset and the smart device and the first antenna is enabled for communication of the wireless link between the first headset and the second headset,
the processor is further configured to:
in the case where communication is to be conducted via the wireless link between the wireless headset and the smart device but the first antenna is currently enabled, issuing a switching signal to switch to the second antenna for communication in advance; and
in the case where communication is to be conducted via a wireless link between the first headset and the second headset but a second antenna is currently enabled, a switching signal to switch to the first antenna for communication is issued in advance.
2. The wireless headset of claim 1,
the first earphone further comprises:
a first wireless communication unit configured to:
establishing a first wireless link with the smart device for communication; and
receiving audio data information from the smart device via the first wireless link during a first time period of an Nth communication frame;
the second earpiece further comprising:
a second wireless communication unit configured to: acquiring audio data information from the smart device via the listening wireless link during a first time period of an Nth communication frame; and
the first wireless communication unit of the first headset is further configured to: transmitting a response packet to the smart device via the first wireless link during a second time period of an N +1 th communication frame; or
The second wireless communication unit of the second headset is further configured to: transmitting a reply packet to the smart device via the listening wireless link during a second time period of an N +1 th communication frame,
wherein the switching component is configured to: pre-switching to the second antenna for communication with the first antenna currently enabled prior to a first time period of an Nth communication frame.
3. The wireless headset of claim 2,
the first earpiece further includes a third wireless communication unit, the second earpiece further includes a fourth wireless communication unit, the third and fourth wireless communication units configured to: establishing a second wireless link between the first headset and the second headset;
the third wireless communication unit or the fourth wireless communication unit is configured to:
transmitting an indication packet to another headset via the second wireless link during a third time period within an nth communication frame other than the first time period, the indication packet including information whether its sender correctly received audio data from the smart device;
the processor is further configured to:
sending a switching signal for switching to the first antenna for communication before a third time period within an nth communication frame; and
sending a switch signal to switch to the second antenna for communication after a third time period within an Nth communication frame.
4. A wireless headset according to any of claims 1-3, wherein the wireless link between the first headset and the second headset further comprises a third wireless link for transmitting headset interaction information, the first headset further comprises a fifth wireless communication unit, the second headset further comprises a sixth wireless communication unit, the fifth and sixth wireless communication units being configured to: establishing the third wireless link between the first headset and the second headset;
the processor is further configured to: in a case where communication is to be performed via the third wireless link but the second antenna is currently enabled, issuing a switching signal in advance causes the switching section to switch to the first antenna.
5. A wireless headset according to any of claims 1-3, characterized in that the first antenna of each headset is arranged in the upper part of the side of the respective headset facing away from the ear and the second antenna of each headset is arranged in the lower part of the respective headset.
6. The wireless headset of claim 5, wherein the first antenna is a patch antenna and the second antenna is a wire antenna.
7. The wireless headset according to claim 5, wherein each of the first antenna and the second antenna is a patch antenna or a wire antenna, the patch antenna being formed inside a case of the corresponding headset via a plating or radium etching, the wire antenna being folded around to be received inside the case of the corresponding headset so as to be isolated from the outside via the case of the corresponding headset.
8. A wireless earphone according to any of claims 1-3, wherein the deviation of the maximum radiation direction of the first antenna from the horizontal direction is smaller than a first threshold value and the deviation of the maximum radiation direction of the second antenna from the vertical direction is smaller than a second threshold value.
9. The wireless headset of any one of claims 1-3, wherein the processor is implemented via an SOC chip, wherein the switching component comprises a radio frequency switch chip having a first pin, a second pin, and a third pin, the first pin connected to the first antenna via a first antenna matching circuit, the second pin connected to the second antenna via a second antenna matching circuit, and the third pin connected to the SOC chip.
10. A method of wireless communication of a wireless headset comprising a first headset and a second headset, the method comprising:
arranging a first antenna and a second antenna in each of the first earphone and the second earphone, such that a radiation distribution of the first antenna in a horizontal direction is greater than a radiation distribution of the second antenna in a vertical direction;
determining a condition of a wireless link over which the wireless headset is to communicate;
switching the first and second antennas such that the second antenna is enabled for communication over the wireless link between the wireless headset and the smart device and the first antenna is enabled for communication over the wireless link between the first headset and the second headset, in accordance with a wireless link over which the wireless headset is to communicate, further comprising:
switching to the second antenna for communication if communication is to be conducted via the wireless link between the wireless headset and the smart device but the first antenna is currently enabled; and
switching to the first antenna for communication if communication is to be conducted via a wireless link between the first and second headsets but a second antenna is currently enabled.
11. The wireless communication method according to claim 10, further comprising:
establishing, by the first headset, a first wireless link with the smart device for communication;
receiving, by the first headset, audio data information from the smart device via the first wireless link during a first time period of an nth communication frame, the audio data information from the smart device being obtained by the second headset via listening to the wireless link;
transmitting, by the first headset or the second headset, a response packet to the smart device via the first wireless link or the listening wireless link during a second time period of the N +1 th communication frame;
wherein the wireless communication method further comprises: pre-switching to the second antenna for communication with the first antenna currently enabled prior to a first time period of an Nth communication frame.
12. The wireless communication method according to claim 11, further comprising:
establishing a second wireless link between the first headset and the second headset;
transmitting, by a headset to another headset via the second wireless link, an indication packet including information whether its sender correctly received audio data from the smart device within a third time period within an nth communication frame other than the first time period;
the wireless communication method further comprises:
switching to the first antenna for communication prior to a third time period within an Nth communication frame; and
switching to the second antenna for communication after a third time period within an Nth communication frame.
13. The wireless communication method of claim 12, further comprising:
establishing a third wireless link between the first headset and the second headset for transmitting headset interaction information, the third wireless link and the second wireless link being independent of each other;
switching to the first antenna if communication is to be conducted via the third wireless link but the second antenna is currently enabled.
14. A non-transitory computer storage medium disposed in each of a wireless headset including a first headset and a second headset, each of the first headset and the second headset including a first antenna and a second antenna, a radiation distribution of the first antenna in a horizontal direction being greater than a radiation distribution in a vertical direction, a radiation distribution of the second antenna in the vertical direction being greater than the radiation distribution in the horizontal direction, the computer executable instructions when executed by a processor performing a wireless communication method comprising:
determining a condition of a wireless link over which the wireless headset is to communicate;
switching the first and second antennas such that the second antenna is enabled for communication over the wireless link between the headset and the smart device and the first antenna is enabled for communication over the wireless link between the first and second headsets, in accordance with the wireless link over which the wireless headset is to communicate, further comprising:
switching to the second antenna for communication if communication is to be conducted via the wireless link between the wireless headset and the smart device but the first antenna is currently enabled; and
switching to the first antenna for communication if communication is to be conducted via a wireless link between the first and second headsets but a second antenna is currently enabled.
15. The non-transitory computer storage medium of claim 14, wherein the wireless communication method further comprises:
establishing, by the first headset, a first wireless link with a smart device for communication;
receiving, by the first headset, audio data information from the smart device via the first wireless link during a first time period of an nth communication frame, the audio data information from the smart device being obtained by the second headset via listening to the wireless link;
transmitting, by the first headset or the second headset, a response packet to the smart device via the first wireless link or the listening wireless link during a second time period of the N +1 th communication frame;
wherein the wireless communication method further comprises: pre-switching to the second antenna for communication with the first antenna currently enabled prior to a first time period of an Nth communication frame.
16. The non-transitory computer storage medium of claim 15, wherein the wireless communication method further comprises:
establishing a second wireless link between the first headset and the second headset;
transmitting, by a headset to another headset via the second wireless link, an indication packet including information whether its sender correctly received audio data from the smart device within a third time period within an nth communication frame other than the first time period;
the wireless communication method further comprises:
switching to the first antenna for communication prior to a third time period within an Nth communication frame; and
switching to the second antenna for communication after a third time period within an Nth communication frame.
17. The non-transitory computer storage medium of claim 16, wherein the wireless communication method further comprises:
establishing a third wireless link between the first headset and the second headset for transmitting headset interaction information, the third wireless link and the second wireless link being independent of each other;
switching to the first antenna if communication is to be conducted via the third wireless link but the second antenna is currently enabled.
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| CN202011013448.9A CN111935796B (en) | 2020-09-24 | 2020-09-24 | Wireless headset for wireless communication, wireless communication method and medium |
| US17/093,636 US10944154B1 (en) | 2020-09-24 | 2020-11-10 | Wireless audio system and method for wirelessly communicating audio information using the same |
| US17/161,481 US11171410B1 (en) | 2020-09-24 | 2021-01-28 | Wireless audio system and method for wirelessly communicating audio information using the same |
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| CN114697794B (en) * | 2020-12-31 | 2025-03-14 | Oppo广东移动通信有限公司 | Data transmission method, wireless headset, and computer storage medium |
| WO2022236828A1 (en) * | 2021-05-14 | 2022-11-17 | 华为技术有限公司 | Head-mounted wireless earphones and communication method therefor |
| CN114390389A (en) * | 2021-12-08 | 2022-04-22 | 安克创新科技股份有限公司 | Adaptive control method of earphone antenna and earphone |
| CN114979972B (en) * | 2022-05-19 | 2024-04-23 | 恒玄科技(上海)股份有限公司 | Audio broadcast source device and audio sharing method |
| CN120358443A (en) * | 2024-01-15 | 2025-07-22 | 海思技术有限公司 | Signal detection method and device for wireless earphone |
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