CN115694564A - Bluetooth system, method for processing Bluetooth signal, chip and electronic equipment - Google Patents
Bluetooth system, method for processing Bluetooth signal, chip and electronic equipment Download PDFInfo
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Abstract
A Bluetooth system, a method of processing Bluetooth signals, a chip and an electronic device are provided. This bluetooth system includes: the modulation module is used for modulating and generating a plurality of paths of Bluetooth signals to be transmitted; one end of the phase compensation module is connected with the modulation module, and the phase compensation module is used for performing phase compensation on the multiple paths of Bluetooth signals so that the multiple paths of Bluetooth signals are superposed in the same phase at a receiving end; and the transmitting module is used for transmitting the multiple paths of Bluetooth signals, wherein the multiple paths of Bluetooth signals are transmitted through a plurality of antennas. The embodiment of the application carries out phase compensation on the multi-path Bluetooth signals to be transmitted, so that the multi-path Bluetooth signals can be superposed in the same phase at the receiving end, and the Bluetooth transmission distance is favorably improved.
Description
Technical Field
The present invention relates to the field of bluetooth technology, and more particularly, to a bluetooth system, a method for processing bluetooth signals, a chip and an electronic device.
Background
With the development of wireless communication technology in recent years, the application scenarios of Bluetooth (BT) are also greatly expanded, such as lathe monitoring in industrial production, ward monitoring in the field of physiotherapy, and the like, which all present a greater challenge to the transmission distance of Bluetooth.
However, bluetooth communication usually employs a single-antenna transceiving mechanism, the communication range is generally within 10m, and the transmission distance of bluetooth technology has been gradually unable to meet the requirement.
Disclosure of Invention
The embodiment of the present application provides a bluetooth system, a method for processing a bluetooth signal, a chip and an electronic device, and various aspects of the embodiment of the present application are introduced below.
In a first aspect, a bluetooth system is provided, comprising: the modulation module is used for modulating and generating a plurality of paths of Bluetooth signals to be transmitted; one end of the phase compensation module is connected with the modulation module, and the phase compensation module is used for performing phase compensation on the multiple paths of Bluetooth signals so that the multiple paths of Bluetooth signals are superposed in the same phase at a receiving end; and the transmitting module is used for transmitting the multiple paths of Bluetooth signals, wherein the multiple paths of Bluetooth signals are transmitted through a plurality of antennas.
In a second aspect, a method of processing bluetooth signals is provided, comprising: acquiring a plurality of paths of Bluetooth signals to be transmitted; carrying out phase compensation on the multiple paths of Bluetooth signals to be transmitted, so that the multiple paths of Bluetooth signals are superposed in phase at a receiving end; and transmitting the multi-path Bluetooth signals through a plurality of antennas.
In a third aspect, a chip is provided, which comprises a memory for storing codes and a processor for executing the codes stored in the memory, and the method according to the second aspect can be implemented.
In a fourth aspect, an electronic device is provided, comprising the chip according to the third aspect.
In a fifth aspect, there is provided a computer readable storage medium having stored thereon executable code that, when executed, is capable of implementing the method of the second aspect.
A sixth aspect provides a computer program product comprising executable code which, when executed, is capable of implementing the method of the second aspect.
The bluetooth system in this application embodiment includes phase compensation module, carries out phase compensation through utilizing phase compensation module to treat the multichannel bluetooth signal of launching for this multichannel bluetooth signal can the homophase stack at the receiving terminal, has improved the gain of bluetooth signal, thereby helps improving bluetooth transmission distance.
Drawings
Fig. 1 is a schematic structural diagram of a transmit-receive bluetooth transmission mode according to an embodiment of the present application.
Fig. 2 is a schematic diagram of a bluetooth system according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of another bluetooth system according to an embodiment of the present application.
Fig. 4 is a flowchart illustrating a bluetooth data transmission process according to an embodiment of the present application.
Fig. 5 is a flowchart illustrating a method for processing a bluetooth signal according to an embodiment of the present application.
Fig. 6 is a schematic structural diagram of an apparatus for processing a bluetooth signal according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
Bluetooth is a wireless technology standard that enables short-range data exchange (using UHF radio waves in the ISM band of 2.4 to 2.485 GHz) between fixed devices, mobile devices and building personal area networks. The bluetooth signal transmission is a transmission mode of transmission-reception, that is, every time the bluetooth device a transmits a data packet, it receives the feedback message transmitted by the peer device B. For example, referring to fig. 1, after the bluetooth device a sends a first bluetooth signal packet (which may be referred to as a first packet for short) to the bluetooth device B, the bluetooth device a receives feedback information sent by the bluetooth device B, and if the feedback information is ACK (Acknowledgement) information, it indicates that the bluetooth device B successfully receives the first packet. Then, the bluetooth device a may send a second data packet to the bluetooth device B, and then the bluetooth device a waits for receiving the feedback information of the second data packet, and if the feedback information of the second data packet is ACK, the bluetooth device a may send a third data packet to the bluetooth device B, and so on, so that data transmission from the bluetooth device a to the bluetooth device B may be completed by using bluetooth communication. It should be understood that if the bluetooth device a receives NACK (Negative Acknowledgement) information sent by the bluetooth device B, it indicates that the bluetooth device B fails to receive the current data packet. After receiving the NACK message, the bluetooth device a may retransmit the current transmission failure frame.
At present, the Bluetooth mainly has Bluetooth formats such as BR, EDR and BLE, and a plurality of bluetooth equipment of bluetooth joinable carry out data transmission, have overcome the synchronous difficult problem of data. However, bluetooth communication generally employs a single antenna transceiving mechanism, and the communication range is generally within 10 m. With the development of the Bluetooth wireless communication technology, the application scene of Bluetooth is greatly expanded. Bluetooth communication plays an extremely important role in such scenarios as remote diagnosis and monitoring of vehicles in the automotive field, monitoring and recording of lathes in industrial production, and ward monitoring in the medical field. These scenarios are different from the data transmission of the traditional bluetooth headset and mobile phone, and both of them pose a greater challenge to the transmission distance of bluetooth. The shortcoming that the existing Bluetooth technology is short in transmission distance is gradually enlarged, and the requirement cannot be met gradually.
In view of the above problems, an embodiment of the present application provides a bluetooth system, which performs phase compensation on multiple bluetooth signals transmitted by multiple antennas by using a phase compensation module, so that the multiple bluetooth signals can be superimposed in phase at a receiving end, thereby improving the gain of the bluetooth signals and contributing to improving the bluetooth transmission distance.
Fig. 2 is a schematic structural diagram of a bluetooth system according to an embodiment of the present application. The bluetooth system 200 may include a modulation module 210, a phase compensation module 220, and a transmission module 230.
The modulation module 210 may be, for example, a Modulator (Modulator), and the modulation module 210 may translate the bluetooth digital bits into corresponding bluetooth baseband IQ signals. The modulation module 210 includes a plurality of transmission ports, which can be connected to a plurality of signal transmission paths of the bluetooth system 200, and the modulation module 210 can be configured to modulate and generate a plurality of bluetooth signals to be transmitted, which can be transmitted along the plurality of signal transmission paths.
The phase compensation module 220 may be located on a plurality of signal transmission paths of the bluetooth system 200, and one end of the phase compensation module 220 may be connected to the modulation module 210. The phase compensation module 220 can be used to perform phase compensation on the multiple bluetooth signals, so that the multiple bluetooth signals can be superimposed in phase at the receiving end.
In some embodiments, the bluetooth system 200 may include a plurality of phase compensation modules 220, the plurality of phase compensation modules 220 may be correspondingly disposed on a plurality of signal transmission paths, one end of each of the plurality of phase compensation modules 220 may be correspondingly connected to a plurality of transmission ports of the modulation module 210, and each of the plurality of phase compensation modules 220 may be configured to perform phase compensation on the plurality of bluetooth signals, so that the plurality of bluetooth signals may be superimposed in phase at a receiving end. Of course, the bluetooth system 200 may also include a phase compensation module 220, and the phase compensation module 220 may perform phase compensation on multiple bluetooth signals simultaneously, so that the multiple bluetooth signals may be superimposed in phase at the receiving end.
It should be noted that the in-phase in the embodiment of the present application may refer to the same phase direction of multiple bluetooth signals, so that after the multiple bluetooth signals are superimposed at the receiving end, a positive gain may be obtained, thereby increasing the transmission range of the bluetooth signals. It should be understood that the multiple bluetooth signals are in the same phase, which is a particular phase co-direction. For example, the phase compensation module 220 may be used to perform phase compensation on the multiple bluetooth signals so that the phases of the multiple bluetooth signals are the same, so that the multiple bluetooth signals are superimposed in phase at the receiving end to obtain the maximum positive gain. For example, taking the multiple bluetooth signals as two bluetooth signals, the phase compensation module 220 may perform phase compensation on the two bluetooth signals, so that the two bluetooth signals have the same phase, and after the receiving ends are superposed in phase, at most 3dB gain may be obtained, thereby doubling the transmission range of the bluetooth signals. This also achieves the effect of beamforming.
The transmitting module 230 may be configured to transmit the compensated multiple bluetooth signals. The transmitting module 230 may include, for example, a radio frequency unit 231 and an antenna unit 232, and the radio frequency unit 231 is connected to the antenna unit 232. The rf unit 231 may transmit the compensated multiple bluetooth signals through multiple antennas in the antenna unit 232. The rf unit 231 may include a plurality of rf paths for transmitting multiple bluetooth signals. It should be understood that the transmitting module 230 may also be configured to receive a bluetooth signal sent by the peer device, that is, the bluetooth signal sent by the peer device may be received through multiple antennas in the antenna unit 232. It should be noted that the radio frequency unit may include components such as an amplifier, a duplexer, and a switch.
Research shows that the parameters of devices such as components and antennas on different radio frequency paths are different, which results in that: the modulation module 210 modulates the generated multiple bluetooth signals to be transmitted, and generates different phase offsets after the multiple bluetooth signals are transmitted by multiple antennas in the antenna unit 232 through the rf unit 231. Therefore, in the scheme of the embodiment of the present application, the phase compensation module 220 is added to perform phase compensation on multiple bluetooth signals, so that the multiple bluetooth signals can be superimposed in the same phase at the receiving end, and the transmission distance of the bluetooth signals is increased. The phase compensation of multiple bluetooth signals is illustrated in conjunction with fig. 3. Fig. 3 is another bluetooth system according to an embodiment of the present application.
In some embodiments, referring to fig. 3, the bluetooth communication system 200 may further include a determination module 250. The determining module 250 is located in a signal receiving path of the bluetooth system 200, and is configured to perform initial phase estimation according to bluetooth receiving signals of multiple antennas, so as to estimate a phase offset generated when multiple bluetooth signals pass through the rf unit 231. Due to the reciprocity between the transmit path and the receive path, the phase offsets of the multiple bluetooth signals generated in the transmit path and the receive path can be considered to be the same. Therefore, the phase compensation module 220 is connected to the determining module 250, and is configured to perform phase compensation on the multiple bluetooth signals to be transmitted according to the initial phase estimation result of the determining module 250.
In some embodiments, the bluetooth system 200 may include a plurality of determining modules 250, the plurality of determining modules 250 may be correspondingly disposed on a plurality of signal receiving paths, and the plurality of determining modules 250 may be configured to perform an initial phase estimation according to bluetooth receiving signals of a plurality of antennas to determine a result of the initial phase estimation. The plurality of determining modules 250 may be respectively connected to the plurality of compensating modules 220, and correspondingly transmit the result of the initial phase estimation of the bluetooth reception signals of the plurality of antennas to the plurality of phase compensating modules 220. The plurality of phase compensation modules 220 may perform phase compensation on the multiple bluetooth signals to be transmitted according to the result of the initial phase estimation, so that the multiple bluetooth signals may be superimposed in phase at the receiving end. It should be understood that the bluetooth system 200 may also include a determining module 250, and the determining module 250 may perform initial phase estimation on bluetooth received signals of multiple antennas at the same time and send the result of the initial phase estimation to the phase compensating module 220.
In some embodiments, to facilitate initial phase estimation of bluetooth received signals of multiple antennas, the determining module 250 may include a synchronizing unit 251 and a phase estimating unit 252.
The synchronization unit 251 may be configured to perform a signal synchronization operation on the bluetooth reception signals of the plurality of antennas before performing an initial phase estimation on the bluetooth reception signals of the plurality of antennas. The synchronization of any two bluetooth signals of the multiple bluetooth signals received by the multiple antennas is taken as an example for explanation. For example, a sliding correlation method may be used to perform data synchronization on the two bluetooth signals, and specifically, phase correlation sliding may be performed on the two bluetooth signals to search for a maximum sliding correlation peak. If the maximum correlation peak is found, the two Bluetooth signals are considered to be successfully synchronized, and if the two Bluetooth signals are successfully synchronized, the position of the synchronization sequence in the two Bluetooth signal data is determined. And if the maximum correlation peak is not found, the data synchronization of the two Bluetooth signals is considered to be failed.
The phase estimation unit 252 is connected to the synchronization unit 251, and the phase estimation unit 252 is configured to: and under the condition that the synchronous operation is successful, performing initial phase estimation according to Bluetooth receiving signals of a plurality of antennas to determine the result of the initial phase estimation. More specifically, the phase estimation unit 252 may compare the local sequence and the synchronization sequence of the two bluetooth signal data, so as to obtain a phase difference between the two bluetooth signals to be transmitted, and further calculate the initial phase of the two bluetooth signals.
In other embodiments, phase estimation unit 252 may also be configured to: and under the condition of failure of synchronous operation, performing phase compensation on the multiple paths of Bluetooth signals to be transmitted according to the historical data of initial phase estimation. The initial phase estimation history data may refer to initial phase estimation data before the current data packet, for example, the current data packet is a third data packet, the multiple antennas may receive the feedback bluetooth signals of the first data packet and the second data packet, and the initial phase estimation data of the feedback bluetooth signals of the first data packet and the second data packet is the initial phase estimation history data. It should be appreciated that if there is no historical data for the initial phase estimate, a default initial phase estimate value, such as 0, may be used, indicating that there is no phase compensation for the multiple bluetooth signals to be transmitted.
It should be noted that the determining module 250 may perform initial phase estimation on the bluetooth receiving signals of the multiple antennas in real time, and then perform phase compensation on the multiple bluetooth signals to be transmitted by using the phase compensating module 220 according to real-time data of the initial phase estimation, so as to alleviate an error of phase estimation caused by an external environment. Or, the initial phase estimation may be performed only once on the bluetooth receiving signals of the multiple antennas, and then the phase compensation module 220 may be used to perform phase compensation on the multiple bluetooth signals to be transmitted according to the initial phase estimation data that is fixed once. The phase estimation module may also be used to perform initial phase estimation on bluetooth received signals of multiple antennas in real time, then obtain a phase estimation mean value of current initial phase estimation data and historical initial phase estimation data, and then perform phase compensation on multiple bluetooth signals to be transmitted by using the phase compensation module 220 according to the phase estimation mean value. This is not particularly limited by the embodiments of the present application.
In some embodiments, with continued reference to fig. 3, the bluetooth system 200 further includes a filtering module 260 and a demodulation module 270.
The filtering module 260 may be located on a signal transmitting and receiving path of the bluetooth system 200, the filtering module 260 may be a Low Pass Filter (LPF), and the filtering module 260 may be configured to filter a high frequency component of the baseband signal. The bluetooth system 200 may include a plurality of filtering modules 260 respectively disposed in the plurality of signal transmission and reception paths.
The demodulation module 270 may be a Demodulator (Demodulator), and the demodulation module 270 may translate the bluetooth baseband IQ signal into corresponding bluetooth digital bits and send the corresponding bluetooth digital bits to the processor for corresponding data processing.
In order to better understand the phase compensation method in the embodiment of the present application, it is assumed that the bluetooth device a sends data to the bluetooth device B, where the bluetooth device a includes a bluetooth system 200, and the bluetooth system 200 includes two antennas and two bluetooth signals as an example, and a synchronous workflow of the multiple bluetooth signals is illustrated with reference to fig. 3 and fig. 4. The method comprises the following specific steps:
step 1: the Bluetooth device A is connected with the Bluetooth device B in a matching mode. And when the Bluetooth device A and the Bluetooth device B are successfully matched and connected, starting a data transmission process and entering the step 2.
Step 2: the Bluetooth device A firstly sends a data packet to the Bluetooth device B, then the Bluetooth device A serves as a receiving end, two antennas can be used for receiving Bluetooth signal feedback data of the data packet sent by the Bluetooth device B, two paths of data are obtained, and the step 3 is carried out.
And step 3: and (4) respectively carrying out synchronous operation on the Bluetooth receiving signals (namely the Bluetooth signal feedback data) of the two antennas, and entering the step 4.
In some embodiments, a sliding correlation method may be used to perform data synchronization on bluetooth receiving signals of two antennas, and specifically, a sliding correlation operation may be performed on two bluetooth signals and a local synchronization sequence, and a maximum sliding correlation peak may be found. If the maximum correlation peak is found, the two paths of Bluetooth signals are considered to be successfully synchronized, otherwise, the data synchronization of the two paths of Bluetooth signals is failed.
And 4, step 4: checking the synchronization condition of the two paths of Bluetooth signal data, and entering step 5 if the two paths of Bluetooth signal data are synchronized successfully; otherwise, go to step 6.
And 5: the two paths of bluetooth signals are successfully synchronized, which is equivalent to that the positions of the synchronization sequences in the two paths of bluetooth data are determined, and then the local sequences and the synchronization sequences of the two paths of bluetooth signals are compared to obtain the phase difference, so that the transmission initial phases of the two paths of bluetooth signals can be obtained, and the step 7 is performed.
And 6: if the synchronization of the two bluetooth signals fails, the historical data of the initial phase estimation (for example, the last initial phase estimation value) may be used as the result of the estimation, and if there is no historical estimation value, a default initial phase estimation value, such as 0, may be used, that is, the two bluetooth signals to be transmitted are not compensated, and step 7 is performed.
And 7: and when the Bluetooth device A sends the signals, performing corresponding phase compensation on the Bluetooth signals to be transmitted according to the initial phase estimation value of each antenna. Then, the bluetooth device a may send the two paths of bluetooth signal data after phase compensation to the bluetooth device B by using the dual antenna, and then prepare to receive the feedback information of the current transmission data, and enter step 2.
Embodiments of the bluetooth system of the present application are described in detail above with reference to fig. 1 to 4, and embodiments of the method of the present application are described in detail below with reference to fig. 5. It is to be understood that the description of the method embodiments corresponds to the description of the embodiments of the bluetooth system, and therefore, reference may be made to the embodiments of the bluetooth system before for parts not described in detail.
Fig. 5 is a schematic flowchart of a method for processing a bluetooth signal according to an embodiment of the present application. The method 500 shown in FIG. 5 may include steps S520-S540, which are described in detail below.
In step S520, multiple bluetooth signals to be transmitted are acquired.
In step S540, the multiple bluetooth signals to be transmitted are phase compensated, so that the multiple bluetooth signals are superimposed in phase at the receiving end.
In step S560, the multiple bluetooth signals are transmitted through multiple antennas.
Optionally, the performing phase compensation on the multiple bluetooth signals to be transmitted includes: performing initial phase estimation according to the Bluetooth receiving signals of the multiple antennas; and performing phase compensation on the multi-path Bluetooth signals to be transmitted according to the result of the initial phase estimation.
Optionally, the performing initial phase estimation according to the bluetooth received signals of the multiple antennas includes: performing signal synchronization operation on the Bluetooth receiving signals of the plurality of antennas; and under the condition that the synchronous operation is successful, performing initial phase estimation according to the Bluetooth receiving signals of the multiple antennas.
Optionally, the method further comprises: and under the condition that the synchronous operation fails, performing phase compensation on the multi-path Bluetooth signals to be transmitted according to the historical data of the initial phase estimation.
The following describes an apparatus 600 for processing bluetooth signals in the embodiment of the present application with reference to fig. 6. The dashed lines in fig. 6 indicate that the unit or module is optional. The apparatus 600 may be used to implement the methods described in the method embodiments above. The apparatus 600 may be a computer or any type of electronic device.
The apparatus 600 may include one or more processors 610. The processor 610 may enable the apparatus 600 to implement the methods described in the previous method embodiments.
The apparatus 600 may also include one or more memories 620. The memory 620 has stored thereon a program that can be executed by the processor 610 to cause the processor 610 to perform the methods described in the previous method embodiments. The memory 620 may be separate from the processor 610 or may be integrated in the processor 610.
The apparatus 600 may also include a transceiver 630. The processor 610 may communicate with other devices through the transceiver 630. For example, the processor 610 may transmit and receive data with other devices through the transceiver 630.
Embodiments of the present application provide a chip, which includes a memory and a processor, where the memory is used to store codes, and the processor is used to execute the codes stored in the memory, so as to implement the methods in the foregoing embodiments.
The electronic device in the embodiment of the present application may be, for example, a mobile phone, a wireless headset, a sound box, a smart watch, and the like.
The embodiment of the application also provides a machine-readable storage medium for storing the program. And the program causes the computer to execute the method in the embodiments of the present application.
The embodiment of the application also provides a computer program product. The computer program product includes a program. The program causes a computer to execute the method in the embodiments of the present application.
The embodiment of the application also provides a computer program. The computer program causes a computer to perform the methods of the various embodiments of the present application.
It should be understood that, in the various embodiments of the present application, "first", "second", and the like are used for distinguishing different objects, and are not used for describing a specific order, the order of execution of the above-mentioned processes is not meant to imply any order of execution, and the order of execution of the processes should be determined by their functions and inherent logic, and should not be construed as limiting the implementation processes of the embodiments of the present application.
In the above embodiments, all or part of the implementation may be realized by software, hardware, firmware or any other combination. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions described in accordance with the embodiments of the disclosure are, in whole or in part, generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a machine-readable storage medium or transmitted from one machine-readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The machine-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., digital Video Disk (DVD)), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
In the several embodiments provided in this application, it should be understood that when a portion is referred to as being "connected" or "coupled" to another portion, it is intended that the portion can be not only "directly connected," but also "electrically connected," with another element interposed therebetween. In addition, the term "connected" also means that the parts are "physically connected" as well as "wirelessly connected". In addition, when a portion is referred to as "comprising" an element, it means that the portion may include another element without excluding the other element unless otherwise stated.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A bluetooth system, comprising:
the modulation module is used for modulating and generating a plurality of paths of Bluetooth signals to be transmitted;
the phase compensation module is used for carrying out phase compensation on the multiple paths of Bluetooth signals so that the multiple paths of Bluetooth signals are superposed in the same phase at a receiving end;
and the transmitting module is used for transmitting the multiple paths of Bluetooth signals, wherein the multiple paths of Bluetooth signals are transmitted through a plurality of antennas.
2. The bluetooth system according to claim 1, characterized in that the bluetooth system further comprises:
a determining module, configured to perform initial phase estimation according to bluetooth receiving signals of the multiple antennas to determine a result of the initial phase estimation;
and the phase compensation module is connected with the determination module and is used for carrying out phase compensation on the multi-path Bluetooth signals to be transmitted according to the result of the initial phase estimation, so that the multi-path Bluetooth signals are superposed in phase at a receiving end.
3. The bluetooth system according to claim 2, wherein the determining module comprises:
a synchronization unit, configured to perform signal synchronization operation on the bluetooth receiving signals of the multiple antennas before performing initial phase estimation on the bluetooth receiving signals of the multiple antennas;
a phase estimation unit connected to the synchronization unit, the phase estimation unit being configured to: and under the condition that the synchronous operation is successful, performing initial phase estimation according to Bluetooth receiving signals of the multiple antennas to determine the result of the initial phase estimation.
4. The bluetooth system according to claim 3, wherein the phase estimation unit is further configured to:
and under the condition that the synchronous operation fails, carrying out phase compensation on the multi-path Bluetooth signals to be transmitted according to the historical data of the initial phase estimation.
5. A method of processing bluetooth signals, comprising:
acquiring a plurality of paths of Bluetooth signals to be transmitted;
carrying out phase compensation on the multiple paths of Bluetooth signals to be transmitted, so that the multiple paths of Bluetooth signals are superposed in phase at a receiving end;
and transmitting the multi-path Bluetooth signals through a plurality of antennas.
6. The method of claim 5, wherein the phase compensating the plurality of Bluetooth signals to be transmitted comprises:
performing initial phase estimation according to the Bluetooth receiving signals of the multiple antennas;
and performing phase compensation on the multi-path Bluetooth signals to be transmitted according to the result of the initial phase estimation.
7. The method of claim 6, wherein the performing initial phase estimation based on the Bluetooth received signals from the plurality of antennas comprises:
performing signal synchronization operation on the Bluetooth receiving signals of the plurality of antennas;
and under the condition that the synchronous operation is successful, performing initial phase estimation according to the Bluetooth receiving signals of the multiple antennas.
8. The method of claim 7, further comprising:
and under the condition that the synchronous operation fails, performing phase compensation on the multi-path Bluetooth signals to be transmitted according to the historical data of the initial phase estimation.
9. A chip comprising a memory for storing code and a processor for executing the code stored in the memory to perform the method of any one of claims 5-8.
10. An electronic device comprising the chip of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211319071.9A CN115694564B (en) | 2022-10-26 | 2022-10-26 | Bluetooth system, method for processing Bluetooth signals, chip and electronic equipment |
Applications Claiming Priority (1)
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| CN112886985A (en) * | 2021-01-28 | 2021-06-01 | 展讯通信（上海）有限公司 | Bluetooth signal receiving/sending method, device, chip and equipment |
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| CN101252227A (en) * | 2007-11-21 | 2008-08-27 | 北京理工大学 | Millimeter wave integration multichannel active transmitting antenna and phase compensation method thereof |
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| US20180248399A1 (en) * | 2017-02-28 | 2018-08-30 | Ossia Inc. | Predictive Phase Tracking In Wireless Power Delivery Environments |
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