Low cost transceiver architecture for wireless communication and sensing

Abstract

Embodiments of the present application provide a system and method for wireless communication and wireless sensing in a low-cost common transceiver structure. Specifically, the common transceiver structure can include a common digital-to-analog converter (DAC) for converting digital wireless communication signals and digital wireless sensing signals into analog wireless communication signals and analog wireless sensing signals, respectively. The common transceiver can also include a common transmit antenna for transmitting the analog wireless communication signals and the analog wireless sensing signals.

Description

[0001] Cross-referencing related applications

[0002] This application claims priority to U.S. Provisional Patent Application No. 62 / 790,082, filed January 9, 2019, entitled “Low-Cost Transceiver Structure for Wireless Communication and Sensing,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present invention generally relates to wireless communication, and in specific embodiments, to a system and method for operating a common transceiver for wireless sensing and wireless communication. Background Technology

[0004] Wireless communication and wireless sensing are two types of electromagnetic radio signaling with applications in various fields. Typically, an electronic device contains a transceiver, which is an electronic circuit that includes a transmitter and a receiver to transmit and receive radio frequency (RF) electromagnetic waves.

[0005] In transceivers used for wireless communication, data is exchanged between two devices via a wireless communication bridge. Wireless communication can vary significantly in terms of operating frequency and transmission. Examples of wireless communication include mobile communication, wireless network communication, Bluetooth communication, and near field communication (NFC). In transceivers used for wireless sensing, electromagnetic signals are transmitted and reflected signals are received in sensing modes used in interactive systems and / or applications. In each system, signals are generated, transmitted, received, and processed according to applicable operating conditions. Summary of the Invention

[0006] The technical advantages are typically achieved through embodiments of the present invention, which describes a system and method for operating a common transceiver for wireless sensing and wireless communication.

[0007] According to one embodiment, an apparatus and method for wireless communication and wireless sensing are provided. The method includes: a common digital-to-analog converter (DAC) of the device converting a digital wireless communication signal and a digital wireless sensing signal into an analog wireless communication signal and an analog wireless sensing signal, respectively. The method further includes: transmitting the analog wireless communication signal and the analog wireless sensing signal via a common transmitting antenna of the device.

[0008] In one example, the method further includes: the modem and common processor of the device generating digital wireless communication signals, and the wireless sensing digital transmitter of the device and the common processor generating digital wireless sensing signals. Optionally, in such an example, or in another example, transmitting the analog wireless communication signals and the analog wireless sensing signals via the common transmitting antenna of the device includes: amplifying the analog wireless communication signals and the analog wireless sensing signals with a common transmitting amplifier; and transmitting the amplified analog wireless communication signals and the amplified analog wireless sensing signals via the common transmitting antenna.

[0009] Optionally, in any of the above examples, or in another example, the method further includes: receiving a second analog wireless communication signal and a second analog wireless sensing signal via the common receiving antenna of the device, wherein the second analog wireless sensing signal is a reflected analog signal of the amplified analog wireless sensing signal; and amplifying the second analog wireless communication signal and the second analog wireless sensing signal by the common receiving amplifier of the device.

[0010] Optionally, in any of the above examples, or in another example, the method further includes: the device's common analog-to-digital converter (ADC) converting the second analog wireless communication signal and the second analog wireless sensing signal into a second digital wireless communication signal and a second digital wireless sensing signal, respectively. Optionally, in any of the above examples, or in another example, the method further includes: the device's first analog-to-digital converter (ADC) converting the second analog wireless communication signal into a second digital wireless communication signal; the device's narrowband analog baseband receiver and second ADC converting the second analog wireless sensing signal into a second digital wireless sensing signal, wherein the second ADC includes a high-resolution ADC with a lower sampling rate than the first ADC, and the second analog wireless sensing signal has a narrower bandwidth and a larger dynamic range than the second analog wireless communication signal.

[0011] Optionally, in any of the above examples, or in another example, the method further includes: the common processor and the modem processing the second digital wireless communication signal; the wireless sensing digital receiver of the device and the common processor processing the second digital wireless communication signal. Optionally, in any of the above examples, or in another example, the method further includes: using the common phase-locked loop of the device to synchronize the phase component of the analog wireless communication signal and the phase component of the analog wireless sensing signal.

[0012] Optionally, in any of the above examples, or in another example, the method further includes: using a common phase-locked loop to synchronize the phase component of the second analog wireless communication signal and the phase component of the second analog wireless sensing signal. Optionally, in any of the above examples, or in another example, the wireless sensing is used for at least one of gesture recognition, health monitoring, activity recognition, sleep quality detection, or a combination thereof.

[0013] Optionally, in any of the above examples, or in another example, the method further includes: the device's second common DAC converting the third digital wireless communication signal and the third digital wireless sensing signal into a third analog wireless communication signal and a third analog wireless sensing signal, respectively; and transmitting the third analog wireless communication signal and the third analog wireless sensing signal via the device's second common transmitting antenna.

[0014] Optionally, in any of the above examples, or in another example, each analog wireless communication signal transmitted via each common transmitting antenna is used in a multiple-input multiple-output (MIMO) wireless communication radar technology. Alternatively, in any of the above examples, or in another example, each analog wireless sensing signal transmitted via each common transmitting antenna is used in a multiple-input multiple-output (MIMO) wireless sensing radar technology to detect the orientation of objects reflecting each transmitted analog wireless sensing signal.

[0015] Optionally, in any of the above examples, or in another example, the method further includes: receiving a fourth analog wireless communication signal and a fourth analog wireless sensing signal via a second common receiving antenna of the device, wherein the fourth analog wireless sensing signal is a reflected analog signal of the first or third amplified analog wireless sensing signal; and amplifying the fourth analog wireless communication signal and the fourth analog wireless sensing signal by a second common receiving amplifier of the device. Optionally, in any of the above examples, or in another example, the method further includes: the device's switch alternately sampling the fourth analog wireless sensing signal and the second analog wireless sensing signal; and the wireless sensing digital receiver and the common processor detecting the direction of an object reflecting the first or third amplified analog wireless sensing signal based on the alternating sampling.

[0016] According to another embodiment, a transceiver for wireless communication and wireless sensing is provided. The transceiver includes: a common digital-to-analog converter (DAC) for converting digital wireless communication signals and digital wireless sensing signals into analog wireless communication signals and analog wireless sensing signals, respectively; and a common transmitting antenna for transmitting the analog wireless communication signals and the analog wireless sensing signals. In one example, the transceiver further includes: a common processor; a modem communicating with the common processor for generating digital wireless communication signals; and a wireless sensing digital transmitter communicating with the common processor for generating digital wireless sensing signals.

[0017] Optionally, in one example, or in another, the transceiver further includes: a common transmit amplifier communicating with the common DAC for amplifying the analog wireless communication signal and the analog wireless sensing signal. Optionally, in any of the above examples, or in another, the transceiver further includes: a common receive antenna for receiving the second analog wireless communication signal and the second analog wireless sensing signal, wherein the second analog wireless sensing signal is a reflected analog signal of the amplified analog wireless sensing signal; and a common receive amplifier for amplifying the second analog wireless communication signal and the second analog wireless sensing signal.

[0018] Optionally, in any of the above examples, or in another example, the transceiver further includes: a common analog-to-digital converter (ADC) for converting the second analog wireless communication signal and the second analog wireless sensing signal into a second digital wireless communication signal and a second digital wireless sensing signal, respectively. Optionally, in any of the above examples, or in another example, the transceiver further includes: a first analog-to-digital converter (ADC) for converting the second analog wireless communication signal into a second digital wireless communication signal; a narrowband analog baseband receiver; and a second ADC, including a high-resolution ADC with a lower sampling rate than the first ADC, for converting the second analog wireless sensing signal into a second digital wireless sensing signal, wherein the second analog wireless sensing signal has a narrower bandwidth and a larger dynamic range than the second analog wireless communication signal.

[0019] Optionally, in any of the above examples, or in another example, the modem communicating with the common processor is further configured to process the second digital wireless communication signal. Optionally, in any of the above examples, or in another example, the transceiver further includes: a wireless sensing digital receiver communicating with the common processor, configured to process the second digital wireless communication signal. Optionally, in any of the above examples, or in another example, the transceiver further includes: a phase-locked loop communicating with the common transmit amplifier, configured to synchronize the phase component of the second analog wireless communication signal and the phase component of the second analog wireless sensing signal.

[0020] Optionally, in any of the above examples, or in another example, the wireless sensing is used for at least one of gesture recognition, health monitoring, activity recognition, sleep quality detection, or a combination thereof. Optionally, in any of the above examples, or in another example, the transceiver further includes: a second common DAC for converting the third digital wireless communication signal and the third digital wireless sensing signal into a third analog wireless communication signal and a third analog wireless sensing signal, respectively; and a second common transmitting antenna for transmitting the third analog wireless communication signal and the third analog wireless sensing signal.

[0021] Optionally, in any of the above examples, or in another example, each analog wireless communication signal transmitted via each common transmitting antenna is used in multiple-input multiple-output (MIMO) wireless communication radar technology. Optionally, in any of the above examples, or in another example, each analog wireless sensing signal transmitted via each common transmitting antenna is used in multiple-input multiple-output (MIMO) wireless sensing radar technology to detect the direction of an object reflecting each transmitted analog wireless sensing signal. Optionally, in any of the above examples, or in another example, the transceiver further includes: a second common receiving antenna for receiving a fourth analog wireless communication signal and a fourth analog wireless sensing signal, wherein the fourth analog wireless sensing signal is a reflected analog signal of the first or third amplified analog wireless sensing signal; and a second common receiving amplifier for amplifying the fourth analog wireless communication signal and the fourth analog wireless sensing signal. Optionally, in any of the above examples, or in another example, the transceiver further includes: a switch for alternately sampling the fourth analog wireless sensing signal and the second analog wireless sensing signal; the wireless sensing digital receiver and the common processor are further configured to: detect the orientation of an object reflecting the first or third amplified analog wireless sensing signal based on the alternate sampling.

[0022] According to yet another embodiment, a transceiver for wireless communication and wireless sensing is provided. The transceiver includes: a common digital-to-analog converter (DAC); a common transmit antenna; a non-transient memory containing instructions; and one or more common processors communicating with the common DAC, the common transmit antenna, and the non-transient memory, wherein the one or more common processors execute the instructions to: convert a digital wireless communication signal and a digital wireless sensing signal into an analog wireless communication signal and an analog wireless sensing signal, respectively; and transmit the analog wireless communication signal and the analog wireless sensing signal via the common transmit antenna.

[0023] In one example, the transceiver further includes a modem and a wireless sensing digital transmitter communicating with the one or more common processors, the one or more common processors executing the instructions to: generate a digital wireless communication signal via the modem and the one or more common processors; and generate a digital wireless sensing signal via the wireless sensing digital transmitter and the one or more common processors. Optionally, in any of the above examples, or in another example, the transceiver further includes a common transmit amplifier communicating with the common DAC and the one or more common processors, the one or more common processors executing the instructions to: amplify the analog wireless communication signal and the analog wireless sensing signal via the common transmit amplifier.

[0024] Optionally, in any of the above examples, or in another example, the transceiver further includes a common receiving antenna and a common receiving amplifier communicating with the one or more common processors, the one or more common processors executing the instructions to: receive a second analog wireless communication signal and a second analog wireless sensing signal through the second common antenna, wherein the second analog wireless sensing signal is a reflected analog signal of the amplified analog wireless sensing signal; and amplify the second analog wireless communication signal and the second analog wireless sensing signal through the common receiving amplifier.

[0025] Optionally, in any of the above examples, or in another example, the transceiver further includes a common analog-to-digital converter (ADC) communicating with the one or more common processors, the one or more common processors executing the instructions to: convert the second analog wireless communication signal and the second analog wireless sensing signal into a second digital wireless communication signal and a second digital wireless sensing signal, respectively, via the common ADC. Optionally, in any of the above examples, or in another example, the transceiver further includes a first analog-to-digital converter (ADC) and a second ADC, the second ADC including a narrowband analog baseband receiver, the one or more common processors executing the instructions to: convert the second analog wireless communication signal into a second digital wireless communication signal via the first ADC; and convert the second analog wireless sensing signal into a second digital wireless sensing signal via the second ADC, wherein the second ADC includes a high-resolution ADC with a lower sampling rate than the first ADC, and the second analog wireless sensing signal has a narrower bandwidth and a larger dynamic range than the second analog wireless communication signal.

[0026] Optionally, in any of the above examples, or in another example, the one or more common processors execute the instructions to process the second digital wireless communication signal via the modem. Optionally, in any of the above examples, or in another example, the transceiver further includes a wireless sensing digital receiver communicating with the one or more common processors, the one or more common processors executing the instructions to process the second digital wireless communication signal via the wireless sensing digital receiver. Optionally, in any of the above examples, or in another example, the transceiver further includes a phase-locked loop communicating with the one or more common processors and the common transmit amplifier, the one or more common processors executing the instructions to synchronize the phase component of the second analog wireless communication signal with the phase component of the second analog wireless sensing signal.

[0027] Optionally, in any of the above examples, or in another example, the wireless sensing is used for at least one of gesture recognition, health monitoring, activity recognition, or sleep quality detection. Optionally, in any of the above examples, or in another example, the transceiver further includes a second common DAC and a second common transmit antenna communicating with the one or more common processors, the one or more common processors executing the instructions to: convert a third digital wireless communication signal and a third digital wireless sensing signal into a third analog wireless communication signal and a third analog wireless sensing signal, respectively, via the second common DAC; and transmit the third analog wireless communication signal and the third analog wireless sensing signal via the second common transmit antenna.

[0028] Optionally, in any of the above examples, or in another example, each analog wireless communication signal transmitted via each common transmitting antenna is used in a multiple-input multiple-output (MIMO) wireless communication radar technology. Alternatively, in any of the above examples, or in another example, each analog wireless sensing signal transmitted via each common transmitting antenna is used in a multiple-input multiple-output (MIMO) wireless sensing radar technology to detect the orientation of objects reflecting each transmitted analog wireless sensing signal.

[0029] Optionally, in any of the above examples, or in another example, the transceiver further includes a second common receiving antenna and a second common receiving amplifier communicating with the one or more common processors, the one or more common processors executing the instructions to: receive a fourth analog wireless communication signal and a fourth analog wireless sensing signal via the second common receiving antenna, wherein the fourth analog wireless sensing signal is a reflected analog signal of the first or third amplified analog wireless sensing signal; and amplify the fourth analog wireless communication signal and the fourth analog wireless sensing signal via the second common receiving amplifier. Optionally, in any of the above examples, or in another example, the transceiver further includes a switch communicating with the one or more common processors, the one or more common processors executing the instructions to: alternately sample the fourth analog wireless sensing signal and the second analog wireless sensing signal via the switch; and detect the direction of an object reflecting the first or third amplified analog wireless sensing signal based on the alternating sampling.

[0030] According to another embodiment, a transceiver for wireless communication and wireless sensing is provided. The transceiver includes: a common RF analog receiver for down-converting an RF wireless communication signal and an RF wireless sensing signal into analog wireless communication signals and analog wireless sensing signals, respectively; a first analog-to-digital converter (ADC) for converting the analog wireless communication signals into digital wireless communication signals; and a second ADC, including a high-resolution ADC with a lower sampling rate than the first ADC, for converting the analog wireless sensing signals into digital wireless sensing signals, wherein the analog wireless sensing signals have a narrower bandwidth and a larger dynamic range than the analog wireless communication signals. In one example, the transceiver further includes: a plurality of antennas for operation in multiple-input multiple-output (MIMO) radar technology for wireless communication and wireless sensing. Optionally, in one example or another, the transceiver further includes: a common digital-to-analog converter (DAC) for converting the second digital wireless communication signal and the second digital wireless sensing signal into a second analog wireless communication signal and the second analog wireless sensing signal, respectively; and a common transmitting antenna for transmitting the second analog wireless communication signal and the second analog wireless sensing signal.

[0031] Optionally, in any of the above examples, or in another example, the transceiver further includes: a common processor; a modem communicating with the common processor for generating the second digital wireless communication signal; and a wireless sensing digital transmitter communicating with the common processor for generating the second digital wireless sensing signal. Optionally, in any of the above examples, or in another example, the transceiver further includes: a common transmit amplifier communicating with the common DAC for amplifying the second analog wireless communication signal and the second analog wireless sensing signal. Optionally, in any of the above examples, or in another example, the transceiver further includes: a common receive antenna for receiving the analog wireless communication signal and the analog wireless sensing signal, wherein the analog wireless sensing signal is a reflected analog signal of the second analog wireless sensing signal; and a common receive amplifier for amplifying the analog wireless communication signal and the analog wireless sensing signal.

[0032] Optionally, in any of the above examples, or in another example, the common RF analog receiver further includes: a narrowband analog baseband receiver for down-converting the RF wireless sensing signal into the analog wireless sensing signal. Optionally, in any of the above examples, or in another example, the modem communicating with the common processor is further used to process the digital wireless communication signal. Optionally, in any of the above examples, or in another example, the transceiver further includes: a wireless sensing digital receiver communicating with the common processor for processing the digital wireless sensing signal. Optionally, in any of the above examples, or in another example, the transceiver further includes: a phase-locked loop communicating with the common RF analog receiver for synchronizing the phase components of the RF wireless communication signal and the phase components of the RF analog wireless sensing signal using a common clock.

[0033] Optionally, in any of the above examples, or in another example, the wireless sensing is used for at least one of gesture recognition, health monitoring, activity recognition, sleep quality detection, or a combination thereof. Optionally, in any of the above examples, or in another example, the transceiver further includes: a second common DAC for converting the third digital wireless communication signal and the third digital wireless sensing signal into a third analog wireless communication signal and a third analog wireless sensing signal, respectively; and a second common transmitting antenna for transmitting the third analog wireless communication signal and the third analog wireless sensing signal.

[0034] Optionally, in any of the above examples, or in another example, each analog wireless sensing signal transmitted via each common transmitting antenna is used in multiple-input multiple-output (MIMO) wireless sensing radar technology to detect the direction of an object reflecting each transmitted analog wireless sensing signal. Optionally, in any of the above examples, or in another example, the transceiver further includes: a second common receiving antenna for receiving a fourth analog wireless communication signal and a fourth analog wireless sensing signal, wherein the fourth analog wireless sensing signal is a reflected analog signal of one of the transmitted analog wireless sensing signals; and a second common receiving amplifier for amplifying the fourth analog wireless communication signal and the fourth analog wireless sensing signal.

[0035] Optionally, in any of the above examples, or in another example, the transceiver further includes: a switch for alternately sampling each wireless sensing signal received from a plurality of common receiving antennas, wherein the wireless sensing digital receiver and the common processor are further configured to detect the orientation of an object reflecting each of the plurality of sensing signals based on the alternate sampling. Attached Figure Description

[0036] To gain a more complete understanding of the invention and its advantages, reference is now made to the following description taken in conjunction with the accompanying drawings.

[0037] Figure 1 This is a schematic diagram of an exemplary transceiver for transmitting wireless communication signals.

[0038] Figure 2 This is a schematic diagram of an exemplary transceiver for transmitting wireless sensing signals.

[0039] Figure 3 This is a schematic diagram of an exemplary transceiver for transmitting wireless communication signals and wireless sensing signals.

[0040] Figure 4 Another schematic diagram is shown of an exemplary transceiver for transmitting wireless communication signals and wireless sensing signals.

[0041] Figure 5 This is yet another schematic diagram of an exemplary transceiver for transmitting wireless communication signals and wireless sensing signals.

[0042] Figure 6 Another schematic diagram is shown of an exemplary transceiver for transmitting wireless communication signals and wireless sensing signals.

[0043] Figure 7 Another schematic diagram is shown of an exemplary transceiver for transmitting wireless communication signals and wireless sensing signals.

[0044] Figure 8 A schematic diagram of an exemplary wireless communication network is shown.

[0045] Figure 9 A schematic diagram of an exemplary processing system is shown.

[0046] Figure 10 A schematic diagram of an exemplary transceiver is shown.

[0047] Figure 11A and Figure 11B A flowchart illustrating an exemplary method for wireless communication in a common transceiver.

[0048] Figure 12A and Figure 12B A flowchart illustrating an exemplary method for wireless sensing in a common transceiver. Detailed Implementation

[0049] This invention provides numerous applicable inventive concepts that can be embodied in a variety of specific contexts. Specific embodiments are merely illustrative of particular constructions and do not limit the scope of the claimed embodiments. Unless otherwise stated, features of different embodiments can be combined to form other embodiments. Variations or modifications described in conjunction with one embodiment can also be applied to other embodiments. Furthermore, it should be understood that various changes, substitutions, and modifications can be made herein without departing from the spirit and scope of the invention as defined by the appended claims. While aspects of the invention are primarily described in the context of components in smartphones or smartwatches, it should be understood that these aspects of the invention are also applicable to other devices, such as health monitors, heart rate monitors, thermometers, portable computers, optical helmet displays, etc. In the various figures, similar elements having the same name may be denoted by the same or different reference numerals.

[0050] Mobile phones and other types of mobile devices are typically equipped with wireless communication transceivers for exchanging data with other devices. When wireless sensing is implemented in a device, it can also offer many promising opportunities in areas such as gesture recognition, health parameter monitoring, human physiological signal sensing, location detection, object detection, and motion detection.

[0051] Therefore, it is advantageous to provide additional wireless sensing capabilities in these mobile devices. It should be understood that adding separate transceivers for each technology to achieve this may be an inefficient approach in terms of financial costs and component footprint costs. However, due to operational differences in technology, a wireless transceiver designed for wireless communication is not easily applicable to wireless sensing. Similarly, a transceiver designed for wireless sensing is not easily applicable to wireless communication. In other words, a transceiver designed for only one application lacks certain components required to perform tasks in other applications.

[0052] This invention provides techniques and circuitry for a common transceiver that, within a host device, can be used for both wireless communication and wireless sensing. By reusing common component modules and intelligently adding non-common modules to the common transceiver circuitry, this common transceiver can add additional functionality. The resulting common transceiver is significantly more efficient in terms of financial and floor space costs than two separate transceivers performing the same function. This is particularly suitable for portable devices with size and weight constraints. Advantages of certain embodiments of the invention may include enabling wireless sensing capabilities in existing wireless communication systems. In other embodiments, existing wireless sensing systems are enhanced with wireless communication functionality. In some embodiments of the invention, to accommodate the low bandwidth and / or large dynamic range of the baseband signal of the wireless sensing signal, the common transceiver may include a dedicated wireless sensing receive path with a narrowband analog baseband receiver and / or a high-resolution, low-sampling-rate analog-to-digital converter (ADC). In other embodiments, the dedicated wireless sensing transmit path may include a narrowband analog baseband transmitter and / or a narrowband digital-to-analog converter (DAC).

[0053] This invention provides various methods and structures for adding wireless sensing capabilities to wireless communication transceivers that include two or more antennas without adding any additional antennas. Multiple wireless sensing transmit and receive paths can be implemented in transceivers that include multiple antennas, such as those used in multiple-input multiple-output (MIMO) radio technology. The advantage of multiple transmit and receive paths is that they can provide sensing capabilities for detecting object orientation, etc. One or more switches can be used to transmit, receive, or sample various input and output signals. These and other details are discussed below.

[0054] Figure 1This is a schematic diagram of an exemplary transceiver 100 for transmitting wireless communication signals in a wireless communication network. The transceiver 100 can be installed in a host device. This host device can be any electronic device, such as a smartphone, smartwatch, wearable device, tracking device, etc. As shown, the transceiver 100 includes a processor 102, a memory 103, a modem 104, a digital-to-analog converter (DAC) 106, an analog-to-digital converter (ADC) 108, a phase-locked loop (PLL) 110, an analog transmitter (Tx) 112, an analog receiver (Rx) 114, a duplexer 116, and an antenna 118, which may or may not be as described above. Figure 1 Configure as shown.

[0055] Processor 102 can be any component or set of components used to perform computational and / or other processing-related tasks, and memory 103 can be any component or set of components used to store programming and / or instructions for execution by processor 102. Modem 104 is used to modulate digital data generated by processor 102, etc., into a modulated signal and / or demodulate the modulated signal into digital data awaiting processing by processor 102. Modem 104 is also referred to as a mobile broadband modem, connection card, or data card. DAC 106 is a circuit or system that converts a digital signal into an analog signal. Conversely, ADC 108 is a circuit or system that converts an analog signal into a digital signal. Analog transmitter 112 can be a circuit including one or more filters, one or more amplifiers, and / or one or more mixers. Analog transmitter 112 can be used to modulate analog signals by amplifying analog signals or up-converting analog signals to different operating frequencies. Analog receiver 114 can be a circuit including one or more filters, one or more amplifiers, and / or one or more mixers. Analog receiver 114 can be used to modulate analog signals by amplifying them using a low-noise amplifier (LNA) or down-converting them to different operating frequencies. Phase-locked loop 110 is typically used to generate an LO signal, which is sent to a mixer in analog transmitter 112 and a mixer in analog receiver 114. The LO signal can be used as input to analog transmitter 112 to up-convert transmitted analog signals or as input to analog receiver 114 to down-convert received analog signals. In either case, the phase of the LO signal is synchronized with the clock of the host device, serving as the common phase for the entire transceiver 100. Duplexer 116 is any component or set of components that allows bidirectional communication via a single path. Duplexer 116 isolates the receive path from the transmit path, allowing the transceiver to use a common antenna. In some embodiments, duplexer 116 can be a switch. In some embodiments, this switch can be controlled by processor 102. In other embodiments, duplexer 116 can be a circulator. Antenna 118 can be any device that transmits and receives electromagnetic signals through space.

[0056] The transmit path of transceiver 100 includes processor 102, modem 104, DAC 106, analog transmitter 112, duplexer 116, and antenna 118. During signal transmission, processor 102 and modem 104 generate a digital wireless communication signal. This digital wireless communication signal is converted into an analog wireless communication signal by DAC 106. An embedded mixer in analog transmitter 112 receives an LO signal from a phase-locked loop. The phase of this LO signal is synchronized with the common clock of the host device. The mixer uses the LO signal to up-convert the analog wireless communication signal into an RF wireless communication signal at a specific operating frequency. In some embodiments, the embedded filter in analog transmitter 112 can be used as a low-pass, band-pass, or high-pass filter to modulate the RF wireless communication signal. The desired frequency range to be selected or eliminated in the various filters may depend on the application. In some embodiments, an amplifier may be embedded in analog transmitter 112 to amplify the RF wireless communication signal before transmission through antenna 118. The duplexer 116 receives the amplified RF wireless communication signal, generates a signal and sends it to the antenna 118, which is used to wirelessly transmit the RF signal to another device in the wireless communication network.

[0057] The receiving path of transceiver 100 includes antenna 118, duplexer 116, analog receiver 114, ADC 108, modem 104, and processor 102. Antenna 118 receives RF wireless communication signals from another host device or base station in a wireless communication network. The RF wireless communication signal is directed to analog receiver 114 via duplexer 116. In some embodiments, an amplifier such as a low-noise amplifier can be used to amplify the RF wireless communication signal. In some embodiments, an embedded filter such as a low-pass, band-pass, or high-pass filter can be used to modulate the received RF wireless communication signal. In some embodiments, an embedded mixer in analog receiver 114 receives an LO signal from phase-locked loop 110, the phase of which is synchronized with the common clock of the host device. The mixer uses the LO signal to down-convert the RF wireless communication signal to a baseband wireless communication signal. ADC 160 converts the analog wireless communication signal into a digital wireless communication signal. Modem 104 and processor 102 receive and process the digital wireless communication signal.

[0058] When using frequency division duplex (FDD) technology, the receive and transmit paths of transceiver 100 typically operate at different carrier frequencies. However, when using time division duplex (TDD) technology such as Wi-Fi or WiGig, the transmit and receive paths can operate at different time slots but the same carrier frequency. Therefore, in transceiver 100, a single antenna may be sufficient for both transmission and reception.

[0059] As mentioned above, unlike wireless communication transceivers, typical wireless sensing transceivers can operate as standalone devices. Furthermore, because the transmitted signal and the reflected received signal are transmitted and received almost simultaneously, wireless sensing transceivers require multiple antennas. Figure 2 This is a schematic diagram of an exemplary wireless sensing transceiver 150 for wireless sensing. The wireless sensing transceiver 150 can be installed in a host device.

[0060] In typical wireless sensing operations, an RF signal is transmitted, the reflected signal of that RF signal is received, and then the reflected RF signal is analyzed to monitor heart rate, respiratory rate, detect objects, determine the position of objects, determine the motion of objects, etc. For example, to monitor respiratory rate, a pulsed or continuous RF signal can be directed to a user's chest. Time-based analysis can be performed on the reflected signal from the chest to estimate the respiratory rate resulting from chest movement. Similarly, to monitor heart rate, a pulsed or continuous RF signal can be directed to the person. The reflected RF signal is analyzed based on the detection time and frequency of the reflected signal. In one embodiment, the RF signal is a pulsed signal. In other embodiments, the RF signal can be a continuous wave signal. In some embodiments, the distance between the wireless sensing transceiver 150 and the reflected signal can be very short (e.g., within millimeters). In other embodiments, the distance between the wireless sensing transceivers 150 can be very long (e.g., several meters).

[0061] As shown in the figure, the wireless sensing transceiver 150 includes a processor 102, a memory 103, a digital transmitter 154, a digital receiver 156, a DAC 106, an ADC 108, a phase-locked loop 110, an analog transmitter 112, an analog receiver 114, and a pair of antennas 118 and 158, which may or may not be as described above. Figure 2The setup is as shown. In the wireless sensing transceiver 150, a predefined detection signal, such as a single-tone waveform, a frequency-modulated continuous waveform (FMCW), or a segmented frequency waveform, can be transmitted via antenna 118. The transmitted signal may be reflected by object 160, and the reflected RF signal is then received at antenna 158. The wireless sensing transceiver 150 transmits and receives the reflected signal of the detection signal almost simultaneously, and then processes the reflected signal to extract information related to the reflecting object 160. Processing the reflected detection signal allows the wireless sensing transceiver 150 to detect objects (e.g., humans), determine location, determine motion, or detect other advanced physiological characteristics (e.g., respiratory rate, heart rate, etc.). The transmit and receive paths in the wireless sensing transceiver 150 can operate at the same frequency and can carry sensing signals simultaneously.

[0062] Wireless sensing transceiver 150 includes a digital transmitter 154, a digital receiver 156, and a second antenna 158 not initially present in transceiver 100. Digital transmitter 154 is any component or set of components used to generate digital wireless sensing signals. Digital receiver 156 is any component or set of components used to receive digital wireless sensing signals. Digital receiver 156 may use or include an estimation algorithm based on discrete Fourier transform (DFT) to detect target distance, determine Doppler shift, downsample the probed signal, or perform other processing tasks on the reflected signal.

[0063] On the transmission path, digital transmitter 154 generates a digital wireless sensing signal. In one embodiment, processor 102 generates a signal to be driven by digital transmitter 154. In another embodiment, wireless sensing transceiver 150 may optionally include a tone generator (not shown) driven by digital transmitter 154. In such an embodiment, the optional tone generator or digital transmitter may be controlled by processor 102 to generate the digital wireless signal. DAC 106 converts the digital wireless sensing signal into an analog wireless sensing signal. A mixer in analog transmitter 112 can upconvert the analog wireless sensing signal to an RF wireless sensing signal using the LO signal from phase-locked loop 110. In some embodiments, a filter embedded in analog transmitter 112 may be used to condition the RF signal to remove unwanted noise, etc., at other frequencies. In some embodiments, an amplifier in the analog transmitter may amplify the RF sensing signal before transmission. The RF sensing signal is then transmitted through antenna 118.

[0064] On the receiving path, antenna 158 receives an RF wireless sensing signal, which is a reflected signal of the RF wireless signal transmitted through antenna 118. Since the wireless sensing transceiver 150 includes two separate antennas for transmitting and receiving, a duplexer is not required. An example of a reflected signal is a signal reflected from a body part such as skin, which is then processed to detect a user's heartbeat. It should be understood that the reflected signal can be a reflected signal from other objects and can be used in a variety of applications. The received RF wireless signal can be amplified using an embedded low-noise amplifier, etc., in analog receiver 114. In other embodiments, analog receiver 114 may include a filter to remove unwanted RF signals with frequencies different from the operating frequency of wireless sensing transceiver 150. An embedded mixer in analog receiver 114 can down-convert the received RF signal into an analog wireless sensing signal using the LO signal from phase-locked loop 110. The processor and digital receiver 156 can then process the reflected sensing signal.

[0065] It should be understood that there are some differences between transceivers used for wireless sensing and transceivers used for wireless communication. For example, each transceiver can transmit different types of signals. Correspondingly, the signal processing on the receiving side of each transceiver can also differ. Similarly, the specific characteristics of one transceiver may not be applicable to another. For example, in wireless sensing, the power of the leaked signal from the transmitting antenna to the receiving antenna can be greater than the power of the expected reflected signal, and the leaked signal has almost simultaneous transmission and reception characteristics. Therefore, various methods can be used to address interference problems in wireless sensing applications. This problem is generally not present in wireless communication.

[0066] It should also be understood that in wireless sensing using self-mixing technology (i.e., using the same carrier signal for both transmission and reception), the baseband bandwidth is typically narrower than that in wireless communication. In wireless communication, the channel capacity of the communication channel, or the data rate transmitted through the channel, is directly related to the channel bandwidth. Therefore, in wireless communication that transmits large amounts of data, a larger bandwidth is preferred. Conversely, a narrow bandwidth is desired in wireless sensing. For example, vital signs signals to be monitored by a wireless sensing device have a very narrow bandwidth (e.g., typical breathing is less than half a hertz (Hz), and a heartbeat is just over 1 Hz). In this example, the baseband bandwidth is minimized, allowing only the vital signs signal to pass through while blocking high-frequency interference. For example, the baseband bandwidth used for wireless communication signals might be 1.76 GHz, while the baseband bandwidth used for wireless sensing might be 2 MHz.

[0067] As shown in the figure, the wireless sensing transceiver 150 can share several common component blocks with the transceiver 100. The common components of the transceiver 100 and the wireless sensing transceiver 150 include a processor 102, a memory 103, a DAC 106, an ADC 108, a phase-locked loop 110, an analog transmitter 112, an analog receiver 114, and an antenna 118. An advantage of the various embodiments of the present invention is that it provides an alternative transceiver structure that allows simultaneous operation in wireless communication and wireless sensing due to the presence of common components in different transceivers.

[0068] Figure 3 This is a schematic diagram of an exemplary transceiver 200 for transmitting wireless communication signals and wireless sensing signals. The transceiver 200 can be installed in a host device. As shown, the transceiver 200 includes a processor 102, a memory 103, a modem 104, a wireless sensing digital transmitter 154, a wireless sensing digital receiver 156, a DAC 106, an ADC 108, a phase-locked loop 110, an analog transmitter 112, an analog receiver 114, and a pair of antennas 118 and 158, which may (or may not) be as shown in the diagram. Figure 3 Configure as shown. It should be understood that the phase-locked loop 110 can provide an LO signal as an input to the analog receiver 114.

[0069] In this embodiment, the existing wireless communication system is enhanced with wireless sensing functionality by adding a second antenna 158, a wireless sensing digital transmitter 154, and a wireless sensing digital receiver 156 to the transceiver 100. Since the transmit and receive paths in the transceiver 200 are separate and distinct, a duplexer is no longer required. The second antenna 158 replaces the duplexer 116.

[0070] Common components used for wireless sensing and wireless communication include processor 102, memory 103, DAC 106, ADC 108, phase-locked loop 110, analog transmitter 112, analog receiver 114, and antennas 118 and 158. Wireless sensing digital transmitter 154 and wireless sensing digital receiver 156 are primarily used for wireless sensing, while modem 104 is primarily used for wireless communication.

[0071] Wireless sensing digital transmitter 154 generates wireless sensing detection signals, which are transmitted via DAC 106, analog transmitter 112, and then propagated through antenna 118. The reflected signal is received at antenna 158 and then transmitted to wireless sensing digital receiver 156 via analog receiver 114 and ADC 108. This signal is then processed by processor 102 and memory 103. Therefore, the advantage of transceiver 200 is that it adds wireless sensing functionality to a traditional single-antenna transceiver by adding an antenna and two low-cost digital modules.

[0072] In wireless communication, processor 102, memory 103, and modem 104 generate wireless communication signals, which are transmitted via DAC 106 and analog transmitter 112, and then propagated via antenna 118. Received communication signals are received at antenna 158, then transmitted to modem 104 via analog receiver 114 and ADC 108, and processed by processor 102 and memory 103.

[0073] It should be noted that wireless communication and wireless sensing are two different operating modes of transceiver 200. The operating mode can be selected automatically via advanced software or manually. For example, a cellular phone can switch to communication mode to transmit data, while operating in sensing mode at other times.

[0074] Figure 4 This is a schematic diagram of an exemplary transceiver 300 for transmitting wireless communication signals and wireless sensing signals. The transceiver 300 can be installed in a host device. As shown, the transceiver 300 includes a processor 102, a memory 103, a modem 104, a wireless sensing digital transmitter 154, a wireless sensing digital receiver 156, a pair of DACs 106 and 302, a pair of ADCs 108 and 304, a phase-locked loop 110, a pair of analog transmitters 112 and 306, a pair of analog receivers 114 and 308, a pair of duplexers 116 and 310, and a pair of antennas 118 and 312, which may (or may not) be as described above. Figure 4 Configure as shown. It should be understood that the phase-locked loop 110 can provide an LO signal as an input to the analog transmitters 112 and 306 and the analog receivers 114 and 308.

[0075] In this embodiment, the dual-antenna wireless communication transceiver adds wireless sensing functionality by adding a wireless sensing digital transmitter 154 and a wireless sensing digital receiver 156 to the dual-antenna wireless communication transceiver. Since transceiver 300 is equipped with multiple transmit and receive paths, it can have additional functionality compared to transceiver 200. In some embodiments, the wireless communication can be applied to 2×2 multiple-input multiple-output (MIMO) radar technology. In some applications, the wireless transceiver 300 can communicate with two different devices within a wireless communication network.

[0076] The advantage of transceiver 300 is that it adds wireless sensing capabilities to existing dual-antenna wireless communication transceivers, such as dual-antenna Wi-Fi transceivers in smartphones. Existing dual-antenna wireless communication transceivers include two antennas, two transmit path chains, and two receive path chains to achieve better communication performance (e.g., higher data transmission rates). To reuse the existing wireless communication transceiver, in addition to a transmit path chain for transmitting probe signals and a receive path chain for receiving probe signals almost simultaneously, one of the two antennas can be used for wireless sensing.

[0077] Common components for wireless sensing and wireless communication include processor 102, memory 103, DAC 106, ADC 304, phase-locked loop 110, analog transmitter 112, analog receiver 308, duplexers 116 and 310, and antennas 118 and 158. Wireless sensing digital transmitter 154 and wireless sensing digital receiver 156 are used for wireless sensing, while modem 104 is used for wireless communication. ADC 108 and analog receiver 114 are used in the second receiving path of wireless communication, while DAC 302 and analog transmitter 306 are used in the second transmitting path of wireless communication.

[0078] Wireless sensing digital transmitter 154 generates wireless sensing detection signals, which are transmitted via DAC 106, analog transmitter 112, and then guided by duplexer 116 through antenna 118. The reflected sensing RF signal is received at antenna 158 and then transmitted via analog receiver 308 and ADC 304 to wireless sensing digital receiver 156. This signal is then processed by processor 102 and memory 103. Therefore, the advantage of transceiver 300 is that it adds wireless sensing functionality to an existing dual-antenna communication transceiver by adding two low-cost digital modules.

[0079] In the first path for wireless communication, processor 102, memory 103, and modem 104 generate a wireless communication signal, which is transmitted via DAC 106 and analog transmitter 112, and then guided by duplexer 116 to propagate through antenna 118. In the second path for wireless communication, processor 102, memory 103, and modem 104 generate a wireless communication signal, which is transmitted via DAC 302 and analog transmitter 306, and then guided by duplexer 310 to propagate through antenna 158.

[0080] In the first path for wireless communication, the received communication signal is received at antenna 118, then guided by duplexer 116 through analog receiver 114 and ADC 108 to modem 104, where it is processed by processor 102 and memory 103. In the second path for wireless communication, the received communication signal is received at antenna 158, then guided by duplexer 310 through analog receiver 308 and ADC 304 to modem 104, where it is processed by processor 102 and memory 103.

[0081] Figure 5 This is a schematic diagram of an exemplary transceiver 350 for transmitting wireless communication signals and wireless sensing signals. The transceiver 350 can be installed in a host device. As shown, the transceiver 350 includes a processor 102, a memory 103, a modem 104, a wireless sensing digital transmitter 154, a wireless sensing digital receiver 156, a pair of DACs 106 and 302, several ADCs 108, 304 and 358, a phase-locked loop 110, a pair of analog transmitters 112 and 306, a pair of analog receivers 114 and 158, a pair of duplexers 116 and 310, a pair of antennas 118 and 312, and an analog baseband (BB) receiver 356, which may (or may not) be as shown in the diagram. Figure 5 Configure as shown. It should be understood that the phase-locked loop 110 can provide an LO signal as an input to analog transmitters 112 and 306 and analog receivers 114 and 308. Analog receiver 308 includes RF component 352 and analog component 354. ADC 358 is a low sampling rate / high resolution ADC.

[0082] The RF components in analog receiver 308 may include RF-related components such as mixers and low-noise amplifiers. The analog components in analog receiver 308 may include non-RF-related components such as low-pass filters.

[0083] As mentioned above, wireless communication and wireless sensing transceivers can have different operating requirements. Specifically, these differences can apply to analog baseband receivers and ADCs. In some embodiments, the baseband signal of a wireless sensing signal can have a lower bandwidth and a larger dynamic range compared to the wireless communication signal. The analog baseband receiver and ADC in a typical wireless communication transceiver may not meet the operating requirements of the wireless sensing signal. Therefore, in some embodiments, an analog baseband receiver 356 with a narrowband analog baseband can be used for wireless sensing. Furthermore, the ADC 358 connected to the analog baseband receiver 356 can be a high-resolution and / or low-sampling-rate ADC compared to ADCs 108 and 304. This adaptive technique of sampling different signals at different rates can help reduce operating power and improve system efficiency.

[0084] Typically, a high-resolution ADC corresponds to an ADC with a code rate greater than or equal to 10 bits. Conversely, a low-resolution ADC, or a typical ADC, corresponds to an ADC with a code rate less than 10 bits. Similarly, a high sampling rate ADC typically corresponds to an ADC with a sampling rate greater than or equal to 100 MHz. Conversely, a low sampling rate, or a typical sampling rate, corresponds to a sampling rate less than 100 MHz. It should be understood that sampling rate and resolution vary depending on the application. For example, a high-speed, low-resolution ADC corresponds to an 8-bit ADC at 800 MHz, while a low-speed, high-resolution ADC corresponds to a 14-bit ADC at 4 MHz.

[0085] The advantage of the improved transceiver 350 is that it adds wireless sensing capabilities to a dual-antenna wireless communication transceiver without adding any additional antennas. Including a narrowband / high dynamic range baseband receiver and a high-resolution / low-sampling-rate ADC improves the performance and robustness of wireless sensing.

[0086] In transceiver 350, wireless sensing capability is added to an existing wireless communication system that includes two separate communication paths. A wireless sensing digital transmitter 154 is added to one of the transmission paths originally used for wireless communication. A wireless sensing digital receiver 156, an ADC 358, and an analog baseband receiver 356 are added to one of the reception paths originally used for wireless communication.

[0087] Common components for wireless sensing and wireless communication include processor 102, memory 103, DAC 106, phase-locked loop 110, analog transmitter 112, RF component 352 in analog receiver 308, duplexers 116 and 310, and antennas 118 and 158. Wireless sensing digital transmitter 154, wireless sensing digital receiver 156, ADC 358, and analog baseband receiver 356 are used for wireless sensing, while...

[0088] Modem 104 is used for wireless communication. ADC 108 and analog receiver 114 are used in the second receiving path of wireless communication, while DAC 302 and analog transmitter 306 are used in the second transmitting path of wireless communication. The wireless communication receiving path shared by the wireless sensing section includes analog component 354 in ADC 304 and analog receiver 308.

[0089] Wireless sensing digital transmitter 154 generates wireless sensing detection signals, which are transmitted via DAC 106, analog transmitter 112, and then guided by duplexer 116 through antenna 118. The reflected sensing RF signal is received at antenna 158 and then transmitted to wireless sensing digital receiver 156 via RF component 352, analog baseband receiver 356, and ADC 358 in analog receiver 308. This signal is then processed by processor 102 and memory 103. Therefore, the advantage of transceiver 350 is that it adds wireless sensing functionality to an existing dual-antenna transceiver by adding two low-cost digital modules and two low-cost analog modules.

[0090] In the first transmission path for wireless communication, processor 102, memory 103, and modem 104 generate a wireless communication signal, which is transmitted via DAC 106 and analog transmitter 112, and then guided by duplexer 116 to propagate through antenna 118. In the second transmission path for wireless communication, processor 102, memory 103, and modem 104 generate a wireless communication signal, which is transmitted via DAC 302 and analog transmitter 306, and then guided by duplexer 310 to propagate through antenna 158.

[0091] In the first receiving path for wireless communication, the received communication signal is received at antenna 118, then guided by duplexer 116 through analog receiver 114 and ADC 108 to modem 104, where it is processed by processor 102 and memory 103. In the second receiving path for wireless communication, the received communication signal is received at antenna 158, then guided by duplexer 310 through analog receiver 308 and ADC 304 to modem 104, where it is processed by processor 102 and memory 103.

[0092] Figure 6This is a schematic diagram of an exemplary transceiver 400 for transmitting wireless communication signals and wireless sensing signals. The transceiver 400 can be installed in a host device. As shown, the transceiver 400 includes a processor 102, a memory 103, a modem 104, a wireless sensing digital transmitter 154, a wireless sensing digital receiver 156, a pair of DACs 106 and 302, several ADCs 108, 304 and 358, a phase-locked loop 110, a pair of analog transmitters 112 and 306, a pair of RF analog receivers 406 and 408, several analog baseband receivers 410, 412 and 356, a switch 414, and multiple antennas 118, 158, 402 and 404, which may (or may not) be as shown in the diagram. Figure 6 Configure as shown.

[0093] It should be understood that the phase-locked loop 110 can provide an LO signal as an input to analog transmitters 112 and 306 and RF analog receivers 406 and 408. It should also be understood that even... Figure 6 Four antennas are shown, but a transceiver with more antennas and additional transmit and receive paths is also conceivable, to consider the use of techniques such as 8×8 MIMO. RF analog receivers 406 and 408 may include RF-related components such as mixers and low-noise amplifiers. Analog baseband receivers 410 and 412 may include non-RF-related components such as low-pass filters. The multiple antennas in transceiver 400 can be used for multiple-input multiple-output (MIMO) methods in wireless communication. MIMO is used to increase the capacity of a wireless link through multiple antennas, thereby utilizing multipath propagation, etc.

[0094] Transceiver 400 adds wireless sensing capabilities to existing wireless communication transceivers (such as WiGig transceivers) that include multiple antennas. On the transmit path, wireless sensing detection signals can be transmitted simultaneously or alternately using any of the transmit paths. On the receive path, switch 414 can be used to sample reflected signals in an alternating sequence for processing by the wireless sensing digital receiver 156. The advantage of transceiver 400 is that it adds wireless sensing capabilities to existing multi-antenna wireless communication transceivers without adding additional antennas. Transceiver 400 can also add wireless sensing capabilities implemented using MIMO radar technology, enabling the determination of the direction of the object from which the wireless sensing detection signal is reflected. Including a narrowband / high dynamic range baseband receiver and a high-resolution / low-sampling-rate ADC improves the performance and robustness of wireless sensing.

[0095] Common components used for wireless sensing and wireless communication include processor 102, memory 103, DACs 106 and 302, phase-locked loop 110, analog transmitters 112 and 306, RF analog receivers 406 and 408, and antennas 118, 158, 402, and 404. Wireless sensing digital transmitter 154, wireless sensing digital receiver 156, ADC 358, analog baseband receiver 356, and switch 414 are used for wireless sensing, while modem 104, ADCs 108 and 304, and analog baseband receivers 410 and 412 are used for wireless communication.

[0096] Wireless sensing digital transmitter 154 generates wireless sensing detection signals, which can be transmitted simultaneously or alternately from two different transmission path chains. In the first wireless sensing transmission path, the detection signal is transmitted via antenna 118 after being transmitted through DAC 106 and analog transmitter 112. In the second wireless sensing transmission path, the detection signal is transmitted via antenna 402 after being transmitted through DAC 302 and analog transmitter 306.

[0097] On the receiving side, the reflected sensed RF signal is received at antennas 158 and 404. In the first wireless sensing receiving path, the reflected sensed signal is received at the wireless sensing digital receiver 156 after passing through RF analog receiver 406, switch 414, analog baseband receiver 356, and ADC 358. In the second wireless sensing receiving path, the reflected sensed signal is received at the wireless sensing digital receiver 156 after passing through RF analog receiver 408, switch 414, analog baseband receiver 356, and ADC 358. In the switching scheme, switch 414 is used to alternately sample the reflected RF signals received at antennas 158 and 404. Therefore, the transceiver 400 has the advantage of adding MIMO-related wireless sensing capabilities to an existing quad-dual-antenna transceiver by adding two low-cost digital modules and two low-cost analog modules.

[0098] In the first transmission path for wireless communication, processor 102, memory 103, and modem 104 generate a wireless communication signal, which is transmitted via DAC 106 and analog transmitter 112, and then propagated via antenna 118. In the second transmission path for wireless communication, processor 102, memory 103, and modem 104 generate a wireless communication signal, which is transmitted via DAC 302 and analog transmitter 306, and then propagated via antenna 402.

[0099] In the first receiving path for wireless communication, the received communication signal is received at antenna 158, then transmitted to modem 104 via RF analog receiver 406, analog baseband receiver 410, and ADC 108, and processed by processor 102 and memory 103. In the second receiving path for wireless communication, the received communication signal is received at antenna 404, then transmitted to modem 104 via RF analog receiver 408, analog baseband receiver 412, and ADC 304, and processed by processor 102 and memory 103.

[0100] Figure 7 This is a schematic diagram of an exemplary transceiver 500 for transmitting wireless communication signals and wireless sensing signals. The transceiver 500 can be installed in a host device. As shown, the transceiver 500 includes a processor 102, a memory 103, a modem 104, a wireless sensing digital transmitter 154, a wireless sensing digital receiver 156, several DACs 106, 302, and 502, several ADCs 108, 304, and 358, a phase-locked loop 110, several analog baseband transmitters 508, 510, and 504, a pair of RF analog transmitters 512 and 514, a pair of RF analog receivers 406 and 408, several analog baseband receivers 410, 412, and 356, a pair of switches 414 and 506, and multiple antennas 118, 158, 402, and 404, which may (or may not) be as shown in the diagram. Figure 7 Configure as shown.

[0101] It should be understood that the phase-locked loop 110 can provide an LO signal as an input to the RF analog transmitters 512 and 514 and the RF analog receivers 406 and 408. It should also be understood that even... Figure 7 Four antennas are shown, but a transceiver with more antennas and additional transmit and receive paths is also conceivable, to consider the use of techniques such as 8×8 MIMO. RF analog receivers 512 and 514 may include RF-related components such as mixers and amplifiers. Analog baseband transmitters 508 and 510 may include non-RF-related components such as filters. The multiple antennas in transceiver 500 can be used for multiple-input multiple-output (MIMO) methods in wireless communication.

[0102] Transceiver 500 adds wireless sensing capabilities to existing wireless communication transceivers (such as WiGig transceivers) that include multiple antennas. A narrowband DAC 502 and a narrowband baseband transmitter 504 are added to the transmit path for wireless sensing. The narrowband DAC 502 and narrowband baseband transmitter 504 provide low-power options for wireless sensing.

[0103] Typically, a high-resolution DAC corresponds to a DAC with a bit rate greater than or equal to 10 bits. Conversely, a low-resolution DAC, or a typical DAC, corresponds to a DAC with a bit rate less than 10 bits. Similarly, a high sampling rate DAC typically corresponds to a DAC with a sampling rate greater than or equal to 100 MHz. Conversely, a low sampling rate DAC, or a typical sampling rate DAC, corresponds to a DAC with a sampling rate less than 100 MHz. It should be understood that the sampling rate and resolution vary depending on the application. For example, a high-speed, low-resolution DAC corresponds to an 8-bit DAC at 800 MHz, while a low-speed, high-resolution DAC corresponds to a 14-bit DAC at 4 MHz. This adaptive technique of sampling different signals at different rates can help reduce operating power and improve system efficiency.

[0104] The transceiver 500 can also be equipped with wireless sensing capabilities implemented using MIMO radar technology, which enables the determination of the direction of objects that generate reflected wireless sensing signals. The advantage of the improved transceiver 500 is that it adds wireless sensing functionality to a dual-antenna wireless communication transceiver without adding any additional antennas.

[0105] Common components for wireless sensing and wireless communication include processor 102, memory 103, phase-locked loop 110, RF analog transmitters 512 and 514, RF analog receivers 406 and 408, and antennas 118, 158, 402, and 404. Wireless sensing digital transmitter 154, wireless sensing digital receiver 156, DAC 502, ADC 358, analog baseband transmitter 504, analog baseband receiver 356, and switches 506 and 414 are used for wireless sensing, while modem 104, DACs 106 and 302, ADCs 108 and 304, analog baseband transmitters 508 and 510, and analog baseband receivers 410 and 412 are used for wireless communication.

[0106] Wireless sensing digital transmitter 154 generates a wireless sensing probe signal, which can be transmitted simultaneously or alternately from two different transmission path chains. The probe signal passes through DAC 502, analog baseband transmitter 504, and is then split into two transmission path chains at switch 506. On the first wireless sensing transmission path, the probe signal is transmitted using antenna 118 after passing through RF analog transmitter 512. On the second wireless sensing transmission path, the probe signal is transmitted using antenna 402 after passing through RF analog transmitter 514.

[0107] On the receiving side, the reflected sensed RF signal is received at antennas 158 and 404. In the first wireless sensing receiving path, the reflected sensed signal is received at wireless sensing digital receiver 156 after passing through RF analog receiver 406, switch 414, analog baseband receiver 356, and ADC 358. In the second wireless sensing receiving path, the reflected sensed signal is received at wireless sensing digital receiver 156 after passing through RF analog receiver 408, switch 414, analog baseband receiver 356, and ADC 358. In the switching scheme, switch 414 is used to alternately sample the reflected RF signals received at antennas 158 and 404.

[0108] In the first transmission path for wireless communication, processor 102, memory 103, and modem 104 generate a wireless communication signal, which is transmitted via DAC 106, analog baseband transmitter 508, and RF analog transmitter 512, and then propagated using antenna 118. In the second transmission path for wireless communication, processor 102, memory 103, and modem 104 generate a wireless communication signal, which is transmitted via DAC 302, analog baseband transmitter 510, and RF analog transmitter 514, and then propagated using antenna 402.

[0109] In the first receiving path for wireless communication, the received communication signal is received at antenna 158, then transmitted to modem 104 via RF analog receiver 406, analog baseband receiver 410, and ADC 108, and processed by processor 102 and memory 103. In the second receiving path for wireless communication, the received communication signal is received at antenna 404, then transmitted to modem 104 via RF analog receiver 408, analog baseband receiver 412, and ADC 304, and processed by processor 102 and memory 103.

[0110] Figure 8This is a schematic diagram of a data transmission network 600. Network 600 includes a base station 610 with a coverage area 601, multiple UEs 620, and a backhaul network 630. As shown, base station 610 establishes uplink (dashed line) and / or downlink (dotted line) connections with UEs 620 for transmitting data from UEs 620 to base station 610 and vice versa. Data transmitted via uplink / downlink connections may include data transmitted between mobile devices 620 and data transmitted to and from a remote location (not shown) via backhaul network 630. As used herein, the term "base station" refers to any network-side device used to provide wireless access to the network, such as an enhanced base station (eNodeB or eNB), gNB, transmit / receive point (TRP), macro cell, femtocell, Wi-Fi access point (AP), and other wireless-enabled devices. The base station can provide wireless access according to one or more wireless communication protocols, such as 5th generation new radio (5G NR), LTE, LTE advanced (LTE-A), High Speed ​​Packet Access (HSPA), Wi-Fi 802.11a / b / g / n / ac, etc. As used herein, the term "UE" refers to any user-side device used to establish a wireless connection with the base station, such as a mobile device, mobile station (STA), vehicle, and other wireless-enabled devices. In some embodiments, network 600 may include various other wireless devices, such as relay stations, low-power nodes, etc. While it should be understood that the communication system can employ multiple access nodes capable of communicating with multiple UEs, for simplicity, only one base station 610 and two UEs 620 are shown.

[0111] Figure 9 This is a block diagram of another exemplary processing system 700 that performs the methods described herein. Processing system 700 may be installed in a host device. As shown, processing system 700 includes a processor 702, memory 704, and interfaces 706, 708, and 710, which may or may not be as described herein. Figure 9The configuration is as shown. Processor 702 can be any component or set of components for performing computational and / or other processing-related tasks, and memory 704 can be any component or set of components for storing programming and / or instructions for execution by processor 702. In one embodiment, memory 704 includes a non-transitory computer-readable medium. Interfaces 706, 708, and 710 can be any component or set of components that enables processing system 700 to communicate with other devices / components and / or users. In one embodiment, one or more of interfaces 706, 708, and 710 can be used to transmit data, control, or management messages from processor 702 to applications installed on host devices and / or remote devices. In another embodiment, one or more of interfaces 706, 708, and 710 can be used to enable a user or user device (e.g., a personal computer (PC)) to interact / communicate with processing system 700. Processing system 700 may include... Figure 9 Other components not shown include long-term memory (e.g., non-volatile memory).

[0112] In some embodiments, the processing system 700 is included in a network device that is connected to or part of a telecommunications network. In one embodiment, the processing system 700 is located in a network-side device in a wireless or wired telecommunications network, such as a base station, relay station, scheduler, controller, gateway, router, application server, or any other device in the telecommunications network. In other embodiments, the processing system 700 is located in a user-side device connected to a wireless or wired telecommunications network, such as a mobile station, user equipment (UE), personal computer (PC), tablet computer, wearable communication device (e.g., smartwatch), wireless-enabled vehicle, wireless-enabled pedestrian, wireless-enabled infrastructure element, or any other device for accessing the telecommunications network.

[0113] In some embodiments, one or more of interfaces 706, 708, and 710 connect the processing system 700 to a transceiver for transmitting and receiving signaling over a telecommunications network. Figure 10This is a block diagram of a transceiver 800 for transmitting and receiving signaling via a telecommunications network. The transceiver 800 can be installed in a host device. As shown, the transceiver 800 includes a network-side interface 802, a coupler 804, a transmitter 806, a receiver 808, a signal processor 810, and a device-side interface 812. The network-side interface 802 may include any component or set of components for transmitting or receiving signaling via a wireless or wired telecommunications network. The coupler 804 may include any component or set of components for facilitating bidirectional communication via the network-side interface 802. The transmitter 806 may include any component or set of components (e.g., an up-converter, power amplifier, etc.) for converting a baseband signal into a modulated carrier signal suitable for transmission via the network-side interface 802. The receiver 808 may include any component or set of components (e.g., a down-converter, low-noise amplifier, etc.) for converting a carrier signal received via the network-side interface 802 into a baseband signal. The signal processor 810 may include any component or set of components for converting baseband signals into data signals suitable for communication via one or more device-side interfaces 812 (or converting data signals into data signals). The one or more device-side interfaces 812 may include any component or set of components for data signal communication between the signal processor 810 and components within a host device (e.g., processing system 700, local area network (LAN) port, etc.).

[0114] Transceiver 800 can transmit and receive signaling via any type of communication medium. In some embodiments, transceiver 800 transmits and receives signaling via a wireless medium. In some embodiments, transceiver 800 may be a wireless transceiver for communicating according to wireless telecommunication protocols, such as cellular protocols (e.g., Long-Term Evolution, LTE), wireless local area network (WLAN) protocols (e.g., Wi-Fi), or any other type of wireless protocol (e.g., Bluetooth, Near Field Communication, NFC). In these embodiments, network-side interface 802 includes one or more antenna / radiating elements. In some embodiments, network-side interface 802 may include a single antenna, multiple independent antennas, or a multi-antenna array for multi-layer communication, such as single-input multiple-output (SIMO), multiple-input single-output (MISO), multiple-input multiple-output (MIMO), etc. In other embodiments, transceiver 800 transmits and receives signaling via wired media such as twisted-pair cable, coaxial cable, or optical fiber. A particular processing system and / or transceiver may utilize all of the components shown, or only a subset of these components, and the level of integration may vary from device to device.

[0115] Figure 11A and Figure 11B This is a flowchart illustrating exemplary methods for wireless communication. These methods can be performed by a common transceiver in a host device. Figure 11A This is a flowchart of an exemplary method 850 for wireless communication on a transmit path of a common transceiver. In step 852, the common transceiver uses a common processor and modem therein to generate a digital wireless communication signal. In some embodiments where the common transceiver includes multiple transmit paths, multiple wireless communication signals may be generated for each transmit path. In step 854, the digital wireless communication signal is converted into an analog wireless communication signal using a DAC. In some embodiments, the DAC may be a common component for wireless communication and wireless sensing. In some embodiments, wireless communication and wireless sensing may have different DACs. In step 856, an analog transmitter is used to amplify the analog wireless communication signal. In some embodiments, the analog transmitter may also be used to filter unwanted signals. In step 858, the amplified analog wireless communication signal is transmitted through the common transmit antenna of the common transceiver.

[0116] Figure 11BThis is a flowchart of an exemplary method 870 for wireless communication on a receive path of a common transceiver. In step 872, the common transceiver receives an analog wireless communication signal through a common receive antenna therein. In some embodiments where the common transceiver includes multiple receive paths, multiple wireless communication signals can be received through multiple common receive antennas. In step 874, an analog receiver can be used to amplify the received analog wireless communication signal. In some embodiments, the analog transmitter can also filter out unwanted signals. In step 876, the analog wireless communication signal is converted into a digital wireless communication signal using an ADC. In some embodiments, the ADC can be a common component shared by wireless communication and wireless sensing. In some embodiments, wireless sensing and wireless communication can each have different ADCs. In step 878, the common processor and modem of the common transceiver process the digital wireless communication signal.

[0117] Figure 12A and Figure 12B This is a flowchart illustrating exemplary methods for wireless sensing. These methods can be executed by a common transceiver in a host device. Figure 12A This is a flowchart of an exemplary method 900 for wireless sensing on a transmit path of a common transceiver. In step 902, the common transceiver generates a digital wireless sensing signal using a common processor and a wireless sensing digital transmitter. In some embodiments where the common transceiver includes multiple transmit paths, multiple wireless sensing signals can be generated. In step 904, the digital wireless sensing signal is converted into an analog wireless sensing signal using a DAC. In some embodiments, the DAC can be shared by wireless communication paths. In some embodiments, the DAC can operate in a narrower frequency band than the DAC used for wireless communication. In step 906, an analog transmitter can be used to amplify the wireless sensing signal. In some embodiments, the analog transmitter can operate in a different baseband than the analog transmitter used for wireless communication. In some embodiments, a switch can be used to direct multiple wireless sensing signals to multiple transmit paths. In step 908, the amplified analog wireless sensing signal is transmitted through the common antenna of the transceiver.

[0118] Figure 12BThis is a flowchart of an exemplary method 920 for wireless sensing on a receive path of a common transceiver. In step 922, the common transceiver receives an analog wireless sensing signal via a common receiving antenna therein. The analog wireless sensing signal is a reflected signal of a wireless sensing signal emitted by the common transceiver. In some embodiments where the common transceiver includes multiple receive paths, multiple wireless sensing signals can be received via multiple common receiving antennas. In step 924, an analog receiver can be used to amplify the received analog wireless sensing signal. In some embodiments, the analog receiver may also have a narrowband analog baseband. In step 926, the analog wireless sensing signal is converted into a digital wireless sensing signal using an ADC. In some embodiments, the ADC may be a high-resolution and / or low-sampling-rate ADC compared to an ADC used for wireless communication. In some embodiments, a switch can be used to sample the wireless sensing signals received at multiple common receiving antennas. In these embodiments, the direction of the object causing the reflection can be determined by signal sampling. In step 928, a common processor and a wireless sensing digital receiver can be used to process the wireless sensing signal.

[0119] Despite the detailed description, it should be understood that various changes, substitutions, and modifications can be made without departing from the spirit and scope of this disclosure as defined by the appended claims. The same reference numerals denote the same elements in the various drawings. Furthermore, the scope of this disclosure is not intended to be limited to the specific embodiments described herein, and those skilled in the art will readily understand from this disclosure that processes, machines, manufacturing processes, material compositions, components, methods, or steps (including those currently existing or to be developed hereafter) can perform substantially the same functions or achieve substantially the same effects as the corresponding embodiments described herein. Accordingly, the appended claims encompass such processes, machines, products, material compositions, components, methods, or steps. Therefore, the specification and drawings are to be considered merely as a description of the invention as defined by the appended claims, and are intended to cover any and all modifications, variations, combinations, or equivalents falling within the scope of the invention.

Claims

1. A method for wireless communication and wireless sensing, characterized in that, The method includes: A common digital-to-analog converter (DAC) of a device converts digital wireless communication signals into analog wireless communication signals; The analog wireless communication signal is transmitted via the device's common transmitting antenna; The common DAC converts digital wireless sensing signals into analog wireless sensing signals; The analog wireless sensing signal is transmitted via the common transmitting antenna; The device receives a second analog wireless communication signal and a second analog wireless sensing signal via its common receiving antenna, wherein the second analog wireless sensing signal is a reflected analog signal of an amplified analog wireless sensing signal. The device’s common receiving amplifier amplifies the second analog wireless communication signal and the second analog wireless sensing signal; The device's first analog-to-digital converter (ADC) converts the second analog wireless communication signal into a second digital wireless communication signal; The narrowband analog baseband receiver and the second ADC of the device convert the second analog wireless sensing signal into a second digital wireless sensing signal, wherein the second ADC includes a high-resolution ADC with a lower sampling rate than the first ADC, and the second analog wireless sensing signal has a narrower bandwidth and a larger dynamic range than the second analog wireless communication signal.

2. The method according to claim 1, characterized in that, The method further includes: The device's modem and common processor generate digital wireless communication signals; The device’s wireless sensing digital transmitter and the common processor generate digital wireless sensing signals.

3. The method according to claim 1 or 2, characterized in that, The transmission of the analog wireless communication signal and the analog wireless sensing signal via the common transmitting antenna of the device includes: A common transmit amplifier amplifies the analog wireless communication signal and the analog wireless sensing signal; The amplified analog wireless communication signal and the amplified analog wireless sensing signal are transmitted via the common transmitting antenna.

4. The method according to claim 1 or 2, characterized in that, The method further includes: the device's common analog-to-digital converter (ADC) converts the second analog wireless communication signal and the second analog wireless sensing signal into a second digital wireless communication signal and a second digital wireless sensing signal, respectively.

5. The method according to claim 1 or 2, characterized in that, The method further includes: The common processor and the modem process the second digital wireless communication signal; The device's wireless sensing digital receiver and the common processor process the second digital wireless communication signal.

6. The method according to claim 1 or 2, characterized in that, The method further includes: using the common phase-locked loop of the device to synchronize the phase component of the analog wireless communication signal and the phase component of the analog wireless sensing signal.

7. The method according to claim 6, characterized in that, The method further includes: using the common phase-locked loop to synchronize the phase component of the second analog wireless communication signal and the phase component of the second analog wireless sensing signal.

8. The method according to claim 1 or 2, characterized in that, The wireless sensing is used for at least one of gesture recognition, health monitoring, activity recognition, sleep quality detection, or a combination thereof.

9. The method according to claim 1 or 2, characterized in that, The method further includes: The device’s second common DAC converts the third digital wireless communication signal and the third digital wireless sensing signal into the third analog wireless communication signal and the third analog wireless sensing signal, respectively. The third analog wireless communication signal and the third analog wireless sensing signal are transmitted via the second common transmitting antenna of the device.

10. The method according to claim 1 or 2, characterized in that, Each analog wireless communication signal transmitted via each common transmitting antenna is used in multiple-input multiple-output (MIMO) wireless communication radar technology.

11. The method according to claim 1 or 2, characterized in that, Each analog wireless sensing signal transmitted via each common transmitting antenna is used in multiple-input multiple-output (MIMO) wireless sensing radar technology to detect the orientation of objects that reflect each transmitted analog wireless sensing signal.

12. The method according to claim 1 or 2, characterized in that, The method further includes: The device receives a fourth analog wireless communication signal and a fourth analog wireless sensing signal via its second common receiving antenna, wherein the fourth analog wireless sensing signal is a reflected analog signal of the first or third analog wireless sensing signal. The device's second common receiver amplifier amplifies the fourth analog wireless communication signal and the fourth analog wireless sensing signal.

13. The method according to claim 5, characterized in that, The method further includes: The device's switch alternately samples each analog wireless signal received from the transceiver's multiple antennas; The wireless sensing digital receiver and the common processor detect the orientation of the object reflecting each emitted wireless sensing signal based on the alternating sampling.

14. A transceiver for wireless communication and wireless sensing, characterized in that, The transceiver includes: A common digital-to-analog converter (DAC) is used to convert digital wireless communication signals into analog wireless communication signals and digital wireless sensing signals into analog wireless sensing signals. A common transmitting antenna is used to transmit the analog wireless communication signal and the analog wireless sensing signal; A common receiving antenna is used to receive a second analog wireless communication signal and a second analog wireless sensing signal, wherein the second analog wireless sensing signal is a reflected analog signal of the amplified analog wireless sensing signal; A common receiving amplifier is used to amplify the second analog wireless communication signal and the second analog wireless sensing signal. A first analog-to-digital converter (ADC) is used to convert the second analog wireless communication signal into a second digital wireless communication signal; Narrowband analog baseband receiver; The second ADC includes a high-resolution ADC with a lower sampling rate than the first ADC, and is used to convert the second analog wireless sensing signal into a second digital wireless sensing signal, wherein the second analog wireless sensing signal has a narrower bandwidth and a larger dynamic range than the second analog wireless communication signal.

15. The transceiver according to claim 14, characterized in that, The transceiver also includes: Public processor; A modem that communicates with the common processor is used to generate the digital wireless communication signal; A wireless sensing digital transmitter that communicates with the common processor is used to generate the digital wireless sensing signal.

16. The transceiver according to claim 14 or 15, characterized in that, The transceiver further includes a common transmit amplifier that communicates with the common DAC for amplifying the analog wireless communication signal and the analog wireless sensing signal.

17. The transceiver according to claim 14 or 15, characterized in that, The transceiver further includes an analog-to-digital converter (ADC) for converting the second analog wireless communication signal and the second analog wireless sensing signal into a second digital wireless communication signal and a second digital wireless sensing signal, respectively.

18. The transceiver according to claim 14 or 15, characterized in that, The modem that communicates with the common processor is also used to process the second digital wireless communication signal.

19. The transceiver according to claim 14 or 15, characterized in that, The transceiver further includes a wireless sensing digital receiver that communicates with the common processor for processing the second digital wireless sensing signal.

20. The transceiver according to claim 16, characterized in that, The transceiver further includes a phase-locked loop communicating with the common transmit amplifier for synchronizing the phase component of the second analog wireless communication signal and the phase component of the second analog wireless sensing signal.

21. The transceiver according to claim 14 or 15, characterized in that, The wireless sensing is used for at least one of gesture recognition, health monitoring, activity recognition, sleep quality detection, or a combination thereof.

22. The transceiver according to claim 14 or 15, characterized in that, The transceiver also includes: The second common DAC is used to convert the third digital wireless communication signal and the third digital wireless sensing signal into the third analog wireless communication signal and the third analog wireless sensing signal, respectively. The second common transmitting antenna is used to transmit the third analog wireless communication signal and the third analog wireless sensing signal.

23. The transceiver according to claim 14 or 15, characterized in that, Each analog wireless communication signal transmitted via each common transmitting antenna is used in multiple-input multiple-output (MIMO) wireless communication radar technology.

24. The transceiver according to claim 14 or 15, characterized in that, Each analog wireless sensing signal transmitted via each common transmitting antenna is used in multiple-input multiple-output (MIMO) wireless sensing radar technology to detect the orientation of objects that reflect each transmitted analog wireless sensing signal.

25. The transceiver according to claim 19, characterized in that, The transceiver also includes: The second common receiving antenna is used to receive the fourth analog wireless communication signal and the fourth analog wireless sensing signal, wherein the fourth analog wireless sensing signal is a reflected analog signal of the first or third analog wireless sensing signal. The second common receiving amplifier is used to amplify the fourth analog wireless communication signal and the fourth analog wireless sensing signal.

26. The transceiver according to claim 25, characterized in that, The transceiver further includes a switch for alternately sampling the fourth analog wireless sensing signal and the second analog wireless sensing signal, wherein the wireless sensing digital receiver and the common processor are further configured to: detect the orientation of an object reflecting the first or third analog wireless sensing signal based on the alternate sampling.

27. A transceiver for wireless communication and wireless sensing, characterized in that, The transceiver includes: Common digital-to-analog converter (DAC); Common transmitting antenna; Non-transient memory containing instructions; A first analog-to-digital converter (ADC) and a second ADC, the second ADC including a narrowband analog baseband receiver; One or more common processors communicating with the common DAC, the common transmit antenna, and the non-transient memory, wherein the one or more common processors execute the instructions to: The common DAC converts digital wireless communication signals into analog wireless communication signals. A common receiving antenna and a common receiving amplifier communicate with the one or more common processors, the one or more common processors executing the instructions to: The second analog wireless communication signal and the second analog wireless sensing signal are received through the common receiving antenna, wherein the second analog wireless sensing signal is a reflected analog signal of the amplified analog wireless sensing signal; The second analog wireless communication signal and the second analog wireless sensing signal are amplified by the common receiving amplifier; The analog wireless communication signal is transmitted via a common transmitting antenna; The digital wireless sensing signal is converted into an analog wireless sensing signal using the common DAC. The analog wireless sensing signal is transmitted via the common transmitting antenna; The first ADC converts the second analog wireless communication signal into a second digital wireless communication signal. The second analog wireless sensing signal is converted into a second digital wireless sensing signal by the second ADC, wherein the second ADC includes a high-resolution ADC with a lower sampling rate than the first ADC, and the second analog wireless sensing signal has a narrower bandwidth and a larger dynamic range than the second analog wireless communication signal.

28. The transceiver according to claim 27, characterized in that, The transceiver also includes a modem and a wireless sensing digital transmitter that communicate with the one or more common processors, the one or more common processors executing the instructions to: Digital wireless communication signals are generated through the modem and the one or more common processors; Digital wireless sensing signals are generated using the wireless sensing digital transmitter and the one or more common processors.

29. The transceiver according to claim 27 or 28, characterized in that, The transceiver also includes a common transmit amplifier that communicates with the common DAC and the one or more common processors, the one or more common processors executing the instructions to amplify the analog wireless communication signal and the analog wireless sensing signal via the common transmit amplifier.

30. The transceiver according to claim 27 or 28, characterized in that, The transceiver also includes a common analog-to-digital converter (ADC) that communicates with the one or more common processors, the one or more common processors executing the instructions to convert the second analog wireless communication signal and the second analog wireless sensing signal into a second digital wireless communication signal and a second digital wireless sensing signal, respectively, via the common ADC.

31. The transceiver according to claim 27 or 28, characterized in that, The one or more common processors execute the instructions to process the second digital wireless communication signal via the modem.

32. The transceiver according to claim 27 or 28, characterized in that, The transceiver also includes a wireless sensing digital receiver that communicates with the one or more common processors, the one or more common processors executing the instructions to process the second digital wireless communication signal via the wireless sensing digital receiver.

33. The transceiver according to claim 29, characterized in that, The transceiver also includes a phase-locked loop communicating with the one or more common processors and the common transmit amplifier, the one or more common processors executing the instructions to synchronize the phase component of the second analog wireless communication signal and the phase component of the second analog wireless sensing signal.

34. The transceiver according to claim 27 or 28, characterized in that, The wireless sensing is used for at least one of gesture recognition, health monitoring, activity recognition, sleep quality detection, or a combination thereof.

35. The transceiver according to claim 27 or 28, characterized in that, The transceiver also includes a second common DAC and a second common transmit antenna that communicate with the one or more common processors, the one or more common processors executing the instructions to: The third digital wireless communication signal and the third digital wireless sensing signal are converted into a third analog wireless communication signal and a third analog wireless sensing signal, respectively, through the second common DAC. The third analog wireless communication signal and the third analog wireless sensing signal are transmitted via the second common transmitting antenna.

36. The transceiver according to claim 27 or 28, characterized in that, Each analog wireless communication signal transmitted via each common transmitting antenna is used in multiple-input multiple-output (MIMO) wireless communication radar technology.

37. The transceiver according to claim 27 or 28, characterized in that, Each analog wireless sensing signal transmitted via each common transmitting antenna is used in multiple-input multiple-output (MIMO) wireless sensing radar technology to detect the orientation of objects that reflect each transmitted analog wireless sensing signal.

38. The transceiver according to claim 27 or 28, characterized in that, The transceiver further includes a second common receiving antenna and a second common receiving amplifier communicating with the one or more common processors, the one or more common processors executing the instructions to: A fourth analog wireless communication signal and a fourth analog wireless sensing signal are received via the second common receiving antenna, wherein the fourth analog wireless sensing signal is a reflected analog signal of the first or third analog wireless sensing signal; The fourth analog wireless communication signal and the fourth analog wireless sensing signal are amplified by the second common receiving amplifier.

39. The transceiver according to claim 38, characterized in that, The transceiver also includes a switch for communicating with the one or more common processors, which execute the instructions to: The fourth analog wireless sensing signal and the second analog wireless sensing signal are sampled alternately using the switch. Based on the alternating sampling, the orientation of the object reflecting the first or third analog wireless sensing signal is detected.

40. A transceiver for wireless communication and wireless sensing, characterized in that, The transceiver includes: A common RF analog receiver is used to downconvert RF wireless communication signals and RF wireless sensing signals into analog wireless communication signals and analog wireless sensing signals, respectively. The first analog-to-digital converter (ADC) is used to convert the analog wireless communication signal into a digital wireless communication signal; The second ADC includes a high-resolution ADC with a lower sampling rate than the first ADC, and is used to convert the analog wireless sensing signal into a digital wireless sensing signal, wherein the analog wireless sensing signal has a narrower bandwidth and a larger dynamic range than the analog wireless communication signal.

41. The transceiver according to claim 40, characterized in that, The transceiver also includes multiple antennas for operation in multiple-input multiple-output (MIMO) radar technology for wireless communication and wireless sensing.

42. The transceiver according to claim 40 or 41, characterized in that, The transceiver also includes: A common digital-to-analog converter (DAC) is used to convert a second digital wireless communication signal and a second digital wireless sensing signal into a second analog wireless communication signal and a second analog wireless sensing signal, respectively. A common transmitting antenna is used to transmit the second analog wireless communication signal and the second analog wireless sensing signal.

43. The transceiver according to claim 42, characterized in that, The transceiver also includes: Public processor; A modem communicating with the common processor is used to generate the second digital wireless communication signal; A wireless sensing digital transmitter that communicates with the common processor is used to generate the second digital wireless sensing signal.

44. The transceiver according to claim 42, characterized in that, The transceiver also includes: A common transmit amplifier that communicates with the common DAC is used to amplify the second analog wireless communication signal and the second analog wireless sensing signal.

45. The transceiver according to claim 42, characterized in that, The transceiver also includes: A common receiving antenna is used to receive the analog wireless communication signal and the analog wireless sensing signal, wherein the analog wireless sensing signal is a reflected analog signal of the second analog wireless sensing signal; A common receiving amplifier is used to amplify the analog wireless communication signal and the analog wireless sensing signal.

46. ​​The transceiver according to claim 40 or 41, characterized in that, The common RF analog receiver further includes a narrowband analog baseband receiver, used to downconvert the RF wireless sensing signal into the analog wireless sensing signal.

47. The transceiver according to claim 43, characterized in that, The modem that communicates with the common processor is also used to process the digital wireless communication signals.

48. The transceiver according to claim 43, characterized in that, The transceiver further includes a wireless sensing digital receiver that communicates with the common processor for processing the digital wireless sensing signals.

49. The transceiver according to claim 40 or 41, characterized in that, The transceiver further includes a phase-locked loop communicating with the common RF analog receiver, used to synchronize the phase components of the RF wireless communication signal and the RF analog wireless sensing signal via a common clock.

50. The transceiver according to claim 40 or 41, characterized in that, The wireless sensing is used for at least one of gesture recognition, health monitoring, activity recognition, sleep quality detection, or a combination thereof.

51. The transceiver according to claim 40 or 41, characterized in that, The transceiver also includes: The second common DAC is used to convert the third digital wireless communication signal and the third digital wireless sensing signal into the third analog wireless communication signal and the third analog wireless sensing signal, respectively. The second common transmitting antenna is used to transmit the third analog wireless communication signal and the third analog wireless sensing signal.

52. The transceiver according to claim 40 or 41, characterized in that, Each analog wireless sensing signal transmitted via each common transmitting antenna is used in multiple-input multiple-output (MIMO) wireless sensing radar technology to detect the orientation of objects that reflect each transmitted analog wireless sensing signal.

53. The transceiver according to claim 40 or 41, characterized in that, The transceiver also includes: The second common receiving antenna is used to receive a fourth analog wireless communication signal and a fourth analog wireless sensing signal, wherein the fourth analog wireless sensing signal is a reflected analog signal of one of the transmitted analog wireless sensing signals. The second common receiving amplifier is used to amplify the fourth analog wireless communication signal and the fourth analog wireless sensing signal.

54. The transceiver according to claim 48, characterized in that, The transceiver further includes a switch for alternately sampling each wireless sensing signal received from a plurality of common receiving antennas, and the wireless sensing digital receiver and the common processor are further configured to detect the orientation of an object reflecting each of the plurality of sensing signals based on the alternate sampling.

Images