CN114244389A - Terminal chip, base station device, and bidirectional wireless communication system - Google Patents
Terminal chip, base station device, and bidirectional wireless communication system Download PDFInfo
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- CN114244389A CN114244389A CN202111341012.7A CN202111341012A CN114244389A CN 114244389 A CN114244389 A CN 114244389A CN 202111341012 A CN202111341012 A CN 202111341012A CN 114244389 A CN114244389 A CN 114244389A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/04—Modulator circuits; Transmitter circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/06—Demodulator circuits; Receiver circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/08—Amplitude regulation arrangements
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- Computer Networks & Wireless Communication (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
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Abstract
The embodiment of the invention provides a terminal chip, base station equipment and a bidirectional wireless communication system, and belongs to the technical field of communication. The terminal chip includes: the system comprises a back chirp scattering circuit and an ASK modulation receiving circuit, wherein the back chirp scattering circuit is used for scattering a single-frequency carrier wave of a radio frequency source so as to send a data packet to a base station, and the ASK modulation receiving circuit is used for receiving an ASK modulation signal from the base station. The method realizes bidirectional communication between the terminal and the base station, and simultaneously maintains the ultra-low power consumption performance of the terminal.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a terminal chip, a base station device, and a bidirectional wireless communication system.
Background
A backscattering device used in LoRa scattering communication technology belongs to an ultra-low power consumption device. However, the backscatter device as a terminal has no way of receiving the LoRa signal. In such a communication system, the terminal transmits only signals and does not receive signals, and the base station receives only signals and does not transmit signals, and the communication system belongs to one-way communication. If a receiver for receiving the LoRa signal is forcibly added to the terminal, the power consumption of the terminal is greatly increased, and the ultra-low power consumption characteristic of the LoRa scattering communication technology is offset.
Disclosure of Invention
An object of an embodiment of the present invention is to provide a terminal chip, a base station apparatus, and a bidirectional wireless communication system, which implement bidirectional communication between a terminal and a base station, and at the same time maintain ultra-low power consumption performance of the terminal.
In order to achieve the above object, an embodiment of the present invention provides a terminal chip, including: the system comprises a back chirp scattering circuit and an ASK modulation receiving circuit, wherein the back chirp scattering circuit is used for scattering a single-frequency carrier wave of a radio frequency source so as to send a data packet to a base station, and the ASK modulation receiving circuit is used for receiving an ASK modulation signal from the base station.
Preferably, the back chirp scattering circuit includes: the circuit comprises a first digital baseband, a switch array and an impedance load array, wherein the first digital baseband is connected with the switch array and used for controlling the on/off combination of switches in the switch array; the impedance load array is connected with the switch array and used for changing the impedance value according to the on/off combination of the switches in the switch array so as to change the size of the transmitted linear frequency modulation signal.
Preferably, the back chirp scattering circuit further includes: and the first clock circuit is connected with the first digital baseband and is used for providing a reference clock for the first digital baseband.
Preferably, the ASK modulation receiving circuit includes: the ASK envelope signal processing circuit comprises an ASK demodulation circuit, a hysteresis curve comparator and a second digital baseband, wherein the ASK demodulation circuit is used for filtering out high-frequency components of a received ASK signal to obtain an ASK envelope signal; the hysteresis curve comparator is connected with the ASK demodulation circuit and is used for outputting high/low level signals according to the amplitude of the ASK envelope signals; and the second digital baseband is connected with the hysteresis curve comparator and used for analyzing and extracting the ASK signal according to the high/low level signal.
Preferably, the ASK modulation receiving circuit further includes: and the second clock circuit is connected with the second digital baseband and used for providing a reference clock for the second digital baseband.
Preferably, the terminal chip further includes: a battery for providing power to the devices in the terminal.
Preferably, the terminal chip further includes: and the terminal antenna is connected with the switch array and the ASK demodulation circuit.
Preferably, the back-chirp scattering and ASK modulation use different carrier frequencies.
An embodiment of the present invention further provides a base station device, where the base station device is based on the terminal chip described above, and the base station device includes: the data packet transmission device comprises a linear frequency modulation receiving circuit and an ASK modulation transmitting circuit, wherein the linear frequency modulation receiving circuit is used for receiving the data packet, and the ASK modulation transmitting circuit is used for transmitting the ASK modulation signal.
Preferably, the chirp receiving circuit includes: the first mixer is used for receiving a chirp signal, and the first amplifier is used for amplifying the chirp signal; the chirp signal synchronization unit is connected with the first amplifier and is used for synchronizing the received chirp signal with a local chirp signal; the first mixer is connected with the chirp signal synchronization unit and is used for mixing the received chirp signal with a local chirp signal; the third digital baseband is connected to the first mixer for performing a fast fourier transform to complete demodulation of the received chirp signal.
Preferably, the ASK modulation transmission circuit includes: the digital-to-analog conversion unit is connected with the fourth digital baseband and is used for converting the digital signal of the fourth data baseband into an analog signal; the second mixer is used for mixing the analog signal output by the digital-to-analog conversion unit with a local carrier signal; the second amplifier is connected with the second mixer and is used for amplifying the mixed signals.
Preferably, the base station apparatus further includes: and a base station antenna connected to the first amplifier and the second amplifier.
An embodiment of the present invention further provides a bidirectional wireless communication system, including: the system comprises a radio frequency source, at least one terminal and a base station, wherein the radio frequency source is used for transmitting a single frequency carrier; the terminal comprises the terminal chip; the base station comprises the base station apparatus described above.
By adopting the technical scheme, the ASK modulation receiving circuit is added in the terminal, so that signals can be received, the bidirectional communication between the terminal and the base station is realized, and the ultralow power consumption performance of the terminal is kept due to the characteristics of the ASK modulation receiving circuit.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
fig. 1 is a schematic structural diagram of a terminal chip according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a back chirp scattering circuit according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an ASK modulation receiving circuit according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a terminal chip according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a base station device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a chirp receiving circuit according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an ASK modulation transmitting circuit according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a base station device according to another embodiment of the present invention;
fig. 9 is a schematic structural diagram of a two-way wireless communication system according to an embodiment of the present invention.
Description of the reference numerals
1 back linear frequency modulation scattering circuit 2 ASK modulation receiving circuit
11 first digital baseband 12 switch array
13 impedance load array 14 first clock circuit
21 ASK demodulation circuit 22 hysteresis curve comparator
23 second digital baseband 24 second clock circuit
3 battery 4 terminal antenna
5 linear frequency modulation receiving circuit 6 ASK modulation transmitting circuit
51 third digital baseband 52 first mixer
53 chirp synchronization unit 54 first amplifier
55 third clock circuit 61 fourth digital baseband
62 digital-to-analog conversion unit 63 second mixer
64 second amplifier 65 fourth clock circuit
7 base station antenna
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
Fig. 1 is a schematic structural diagram of a terminal chip according to an embodiment of the present invention. As shown in fig. 1, the terminal chip includes: the system comprises a back chirp scattering circuit 1 and an ASK modulation receiving circuit 2, wherein the back chirp scattering circuit 1 is used for scattering a single-frequency carrier wave of a radio frequency source so as to send a data packet to a base station, and the ASK modulation receiving circuit 2 is used for receiving an ASK modulation signal from the base station.
Specifically, the radio frequency source transmits a single-frequency carrier, the back chirp scattering circuit 1 serves as a back scattering device, and by backscattering, a data packet conforming to the LoRa rule is transmitted to a base station, and the base station receives data. The LoRa scattering communication technology is used, although the power consumption is low, the LoRa scattering communication technology belongs to one-way communication. The embodiment of the present invention sets an ASK (Amplitude Shift Keying) modulation receiving circuit 2 to receive signals and ensure that the characteristics of low power consumption of the terminal are not changed. Preferably, different carrier frequencies are used for the back chirp scattering and ASK modulation to avoid mutual interference and improve sensitivity.
The prior art LoRa scattering technique must include LoRa-specific whitening scrambling, Hamming error correction coding, Interleaving, and Gray coding. The backscattering technology is not only suitable for an LoRa system, but also suitable for a customized Sub-GHz wireless communication system (a wireless communication system with a carrier wave lower than 1GHz frequency) based on linear frequency modulation, and in the customized system, the coding mode is known, so that the design process can be greatly simplified, and the coding mode of the communication process does not need to be cracked by reverse engineering.
Fig. 2 is a schematic structural diagram of a back chirp scattering circuit according to an embodiment of the present invention. As shown in fig. 2, the back chirp scattering circuit 1 includes: a first digital baseband 11, a switch array 12 and an impedance load array 13, wherein the first digital baseband 11 is connected with the switch array 12 for controlling the on/off combination of the switches in the switch array 12; the impedance load array 13 is connected to the switch array 12, and is configured to change an impedance value according to an on/off combination of switches in the switch array 12, so as to change a magnitude of the transmitted chirp signal.
Specifically, in the embodiment of the present invention, the first digital baseband 11 is connected to the switch array 12, and the digital circuit is implemented to control the on/off combination of the switches in the switch array 12, and the switch array 12 is connected to the impedance load array 13. The specific working mode is that firstly, the switch array 12 is controlled by the first digital baseband 11, and the advantage of the array is that the backscattering chirp signal amplitude can generate a plurality of values, so that the influence of the third harmonic and the fifth harmonic is reduced. The switch array 12 can then change the impedance load array 13 through different switch combination modes to generate different impedance values so as to change the internal impedance value of the chip, thereby changing the reflection coefficient of the antenna, so that the signal backscattered by the antenna is controlled. The principle of antenna back reflection is to multiply the multivalued signal controlled by the first digital baseband 11 and the received single frequency signal of the rf source in time domain, thereby generating a new frequency component, which is also called subcarrier. By controlling the frequency value of the new frequency component or subcarrier to vary linearly, a linear frequency modulation can be achieved.
In addition, the back chirp scattering circuit 1 further includes: and a first clock circuit 14, connected to the first digital baseband 11, for providing a reference clock for the first digital baseband 11.
In this embodiment, it can be seen that, high-power energy-consuming devices such as a power amplifier and a mixer are not arranged in the back chirp scattering circuit 1, and the back chirp scattering circuit has the characteristic of ultra-low power consumption.
Fig. 3 is a schematic structural diagram of an ASK modulation receiving circuit according to an embodiment of the present invention. As shown in fig. 3, the ASK modulation receiving circuit 2 includes: the ASK demodulation circuit 21, the hysteresis curve comparator 22, and the second digital baseband 23, where the ASK demodulation circuit 21 is configured to filter out a high-frequency component of the received ASK signal to obtain an ASK envelope signal; the hysteresis curve comparator 22 is connected to the ASK demodulation circuit 21, and is configured to output a high/low level signal according to the amplitude of the ASK envelope signal; the second digital baseband 23 is connected to the hysteresis curve comparator 22, and is configured to analyze and extract the ASK signal according to the high/low level signal.
Specifically, in the embodiment of the present invention, the ASK signal format may adopt an ultrahigh frequency RFID standard, for example, an ISO18000-6C protocol. The basic principle of the ASK demodulation circuit 21 is to filter out high-frequency components of ASK and extract an envelope of the ASK signal. The ASK demodulation circuit 21 of this embodiment filters the carrier of the received ASK signal to obtain an envelope signal. The ASK demodulation circuit 21 is connected to the hysteresis curve comparator 22, the hysteresis curve comparator 22 plays a role in comparing signals, the hysteresis curve can effectively eliminate misoperation, and only ASK envelope signals with signal amplitude larger than a threshold value can enable the output of the comparator to be inverted to be high. Thus, the hysteresis curve comparator 22 outputs a digital signal to the second digital baseband 23. The second digital baseband 23 analyzes and extracts the ASK signal. It is specifically understood that the second digital baseband 23 analyzes the form of the received high/low level signal, e.g., the duration of the high/low level and when to transition from high to low or from low to high.
In addition, the ASK modulation receiving circuit 2 further includes: and a second clock circuit 24 connected to the second digital baseband 23 and configured to provide a reference clock for the second digital baseband 23, where the second clock circuit 24 and the first clock circuit 14 may be the same clock circuit or different clock circuits.
In this embodiment, it can be seen that high power consumption devices such as a power amplifier and a mixer are not provided in the ASK demodulation circuit 21, and the ASK demodulation circuit has a characteristic of ultra-low power consumption. The power consumption of the transmitting circuit of the common chirp terminal is about 10mA, while the power consumption of the transmitting circuit of the backscatter chirp terminal in this embodiment is about 0.2 mA. The power consumption of the receiving circuit of the common linear modulation terminal is about 1mA, and the power consumption of the receiving circuit of the terminal of the embodiment is about 0.001 mA.
Fig. 4 is a schematic structural diagram of a terminal chip according to an embodiment of the present invention. As shown in fig. 4, the terminal chip further includes: a battery 3 for providing power to the devices in the terminal. The battery 3 contributes to ultra-low power consumption long-distance communication. If the battery 3 is not used but the infinite energy-harvesting device is used to supply power, although the feature of ultra-low power consumption is maintained, the bottleneck of the communication distance will be the threshold of the infinite energy-harvesting device, so that the communication distance is greatly shortened. The embodiment described above greatly reduces the power consumption value, and a lower power consumption value means a longer life of the battery 3.
The terminal chip further comprises: the terminal antenna 4 is connected to the switch array 12 and the ASK demodulation circuit 21. The terminal antenna 4 is used for transmitting and receiving signals.
Fig. 5 is a schematic structural diagram of a base station device according to an embodiment of the present invention. As shown in fig. 5, the base station device is based on the terminal chip described above, and the base station device includes: a chirp receiving circuit 5 and an ASK modulation transmitting circuit 6, where the chirp receiving circuit 5 is configured to receive the data packet, and the ASK modulation transmitting circuit 6 is configured to transmit the ASK modulation signal.
Specifically, the base station device has a chirp receiving circuit 5 for receiving the data packet transmitted from the back-chirp scattering circuit 1, and an ASK modulation transmitting circuit 6 for transmitting an ASK modulated signal, corresponding to the terminal chip described above. The base station device may be in the form of a chip or a discrete circuit.
Fig. 6 is a schematic structural diagram of a chirp receiving circuit according to an embodiment of the present invention. As shown in fig. 6, the chirp receiving circuit 5 includes: a third digital baseband 51, a first mixer 52, a chirp synchronization unit 53 and a first amplifier 54, wherein the first amplifier 54 is configured to amplify the received chirp; the chirp synchronization unit 53 is connected to the first amplifier 54, and is configured to synchronize the received chirp with a local chirp; the first mixer 52 is connected to the chirp synchronization unit 53 for mixing the received chirp with a local chirp; the third digital baseband 51 is connected to the first mixer 52 for performing a fast fourier transform to perform demodulation of the received chirp signal.
In addition, the chirp receiving circuit 5 further includes: and a third clock circuit 55, connected to the third digital baseband 51, for providing a reference clock for the third digital baseband 51.
Specifically, first, the first amplifier 54 amplifies the received chirp signal, and the first amplifier 54 may be a low noise amplifier. Then the received chirp signal is synchronized with the local chirp signal by the chirp signal synchronization unit 53, then the local chirp signal and the received chirp signal are mixed by the first mixer 52, and then fast fourier transform calculation is performed in the third digital baseband 51 to obtain the characteristics of the chirp signal, thereby realizing demodulation of the chirp signal.
Fig. 7 is a schematic structural diagram of an ASK modulation transmitting circuit according to an embodiment of the present invention. As shown in fig. 7, the ASK modulation transmission circuit 6 includes: a fourth digital baseband 61, a digital-to-analog conversion unit 62, a second mixer 63, and a second amplifier 64, where the digital-to-analog conversion unit 62 is connected to the fourth digital baseband 61 and is configured to convert a digital signal of the fourth digital baseband into an analog signal; the second mixer 63 is configured to mix the analog signal output by the digital-to-analog conversion unit 62 with a local carrier signal; the second amplifier 64 is connected to the second mixer 63, and amplifies the mixed signal.
In addition, the ASK modulation transmission circuit 6 further includes: and a fourth clock circuit 65 connected to the fourth digital baseband 61 and configured to provide a reference clock for the fourth digital baseband 61, where similarly, the fourth clock circuit 65 and the third clock circuit 55 may be the same clock circuit or different clock circuits.
Specifically, the ASK modulation transmission circuit 6 functions to generate an ASK modulation signal controlled by the fourth digital baseband 61 and perform signal amplification via the second amplifier 64, and the second amplifier 64 may be a power amplifier. The fourth data baseband first generates a digital signal, and the digital signal is converted into an analog signal by a digital-to-analog conversion unit 62(DAC), and then mixed with a local carrier signal by a second mixer 63, and finally amplified by a second amplifier 64 and then transmitted, thereby completing ASK modulation.
Fig. 8 is a schematic structural diagram of a base station device according to another embodiment of the present invention. As shown in fig. 8, the base station apparatus further includes: the base station antenna 7 is connected to the first amplifier 54 and the second amplifier 64. The base station antenna 7 is used for transmitting and receiving signals.
Fig. 9 is a schematic structural diagram of a two-way wireless communication system according to an embodiment of the present invention. As shown in fig. 9, the system includes: the system comprises a radio frequency source, at least one terminal and a base station, wherein the radio frequency source is used for transmitting a single frequency carrier; the terminal comprises the terminal chip; the base station comprises the base station apparatus described above.
Specifically, it is understood that the bidirectional wireless communication system may include a plurality of terminals, for example, three terminals as shown in fig. 9, and the embodiment of the bidirectional wireless communication system is similar to the above-described embodiments of the terminal chip and the base station device, and is not described herein again.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (13)
1. A terminal chip, comprising:
the system comprises a back chirp scattering circuit and an ASK modulation receiving circuit, wherein the back chirp scattering circuit is used for scattering a single-frequency carrier wave of a radio frequency source so as to send a data packet to a base station, and the ASK modulation receiving circuit is used for receiving an ASK modulation signal from the base station.
2. The termination chip of claim 1, wherein the back chirp scattering circuit comprises:
a first digital baseband, a switch array, and an impedance load array, wherein,
the first digital baseband is connected with the switch array and is used for controlling the on/off combination of the switches in the switch array;
the impedance load array is connected with the switch array and used for changing the impedance value according to the on/off combination of the switches in the switch array so as to change the size of the transmitted linear frequency modulation signal.
3. The termination chip of claim 2, wherein the back chirp scattering circuit further comprises:
and the first clock circuit is connected with the first digital baseband and is used for providing a reference clock for the first digital baseband.
4. The termination chip according to claim 2, wherein the ASK modulation reception circuit includes:
ASK demodulation circuit, hysteresis curve comparator and second digital baseband, wherein,
the ASK demodulation circuit is used for filtering out the high-frequency component of the received ASK signal to obtain an ASK envelope signal;
the hysteresis curve comparator is connected with the ASK demodulation circuit and is used for outputting high/low level signals according to the amplitude of the ASK envelope signals;
and the second digital baseband is connected with the hysteresis curve comparator and used for analyzing and extracting the ASK signal according to the high/low level signal.
5. The termination chip according to claim 4, wherein the ASK modulation receiving circuit further comprises:
and the second clock circuit is connected with the second digital baseband and used for providing a reference clock for the second digital baseband.
6. The termination chip of claim 1, wherein the termination chip further comprises:
a battery for providing power to the devices in the terminal.
7. The termination chip of claim 4, wherein the termination chip further comprises:
and the terminal antenna is connected with the switch array and the ASK demodulation circuit.
8. The termination chip of claim 1, wherein the back-chirp scattering and ASK modulation use different carrier frequencies.
9. A base station device, wherein the base station device is based on the terminal chip of any one of claims 1 to 7, and the base station device comprises:
the data packet transmission device comprises a linear frequency modulation receiving circuit and an ASK modulation transmitting circuit, wherein the linear frequency modulation receiving circuit is used for receiving the data packet, and the ASK modulation transmitting circuit is used for transmitting the ASK modulation signal.
10. The base station device of claim 9, wherein the chirp receiving circuit comprises:
a third digital baseband, a first mixer, a chirp synchronization unit, and a first amplifier, wherein,
the first amplifier is used for amplifying the received linear frequency modulation signal;
the chirp signal synchronization unit is connected with the first amplifier and is used for synchronizing the received chirp signal with a local chirp signal;
the first mixer is connected with the chirp signal synchronization unit and is used for mixing the received chirp signal with a local chirp signal;
the third digital baseband is connected to the first mixer for performing a fast fourier transform to complete demodulation of the received chirp signal.
11. The base station apparatus according to claim 10, wherein the ASK modulation transmission circuit includes:
a fourth digital baseband, a digital-to-analog conversion unit, a second mixer, and a second amplifier, wherein,
the digital-to-analog conversion unit is connected with the fourth digital baseband and is used for converting the digital signal of the fourth digital baseband into an analog signal;
the second mixer is used for mixing the analog signal output by the digital-to-analog conversion unit with a local carrier signal;
the second amplifier is connected with the second mixer and is used for amplifying the mixed signals.
12. The base station apparatus according to claim 11, wherein the base station apparatus further comprises:
and a base station antenna connected to the first amplifier and the second amplifier.
13. A two-way wireless communication system, comprising:
a radio frequency source, at least one terminal, and a base station, wherein,
the radio frequency source is used for transmitting a single frequency carrier;
the terminal comprises the terminal chip of any one of claims 1-8;
the base station comprises the base station apparatus of any of claims 9-12.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111341012.7A CN114244389A (en) | 2021-11-12 | 2021-11-12 | Terminal chip, base station device, and bidirectional wireless communication system |
| PCT/CN2022/119368 WO2023082837A1 (en) | 2021-11-12 | 2022-09-16 | Terminal chip, base station device, and bidirectional wireless communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111341012.7A CN114244389A (en) | 2021-11-12 | 2021-11-12 | Terminal chip, base station device, and bidirectional wireless communication system |
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| CN114244389A true CN114244389A (en) | 2022-03-25 |
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| CN202111341012.7A Pending CN114244389A (en) | 2021-11-12 | 2021-11-12 | Terminal chip, base station device, and bidirectional wireless communication system |
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| WO (1) | WO2023082837A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023082837A1 (en) * | 2021-11-12 | 2023-05-19 | 北京智芯微电子科技有限公司 | Terminal chip, base station device, and bidirectional wireless communication system |
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| WO2023082837A1 (en) | 2023-05-19 |
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