Communication and perception integrated equipment

Abstract

The invention provides a communication and perception integrated device which sends a perception excitation signal and a communication downlink signal on different time domain resources through a downlink frequency band filter, and the downlink frequency band filter is further used for receiving a perception echo signal after the perception excitation signal perceives a target. Furthermore, the uplink frequency band filter is used for receiving a communication uplink signal and sending the communication uplink signal to the first amplifier. According to the technical scheme, the FDD Massive MIMO (namely FDD MM) can support the sensing function.

Description

Technical Field

[0001] The present application relates to the field of communications, and more specifically, to a communication and perception integrated device. Background Art

[0002] As fifth-generation mobile communication systems (5G) evolve toward 5G-advanced (5G-A) and the sixth generation (6G), integrated communication and perception technology is considered a key technology for expanding the service capabilities of mobile communication networks. The core concept of this technology is to add perception capabilities to mobile communication networks, building the ability to detect, track, and image targets. This allows communication and perception capabilities to be integrated into a single network, leveraging the wide-area coverage of mobile communication base stations to expand the application scenarios of mobile communication networks.

[0003] Currently, 5G-A and 6G mobile communication systems have incorporated "communication and perception integration," or "synaesthesia fusion," as one of their fundamental features. For example, in the field of low-altitude drone detection, 5G-A's synaesthesia fusion technology is already commercially available. Synaesthesia fusion technologies often utilize the same spectrum, prioritizing time division duplex (TDD). Furthermore, in TDD duplexing, communication and perception typically operate in different time periods to avoid cross-interference between communication and perception signals.

[0004] However, specifically in the application field, on the one hand, because the current TDD spectrum is higher than the frequency of frequency division duplex (FDD), FDD bands have certain advantages in sensing in certain specific application scenarios, such as long-distance ocean sensing in huge wave scenarios, long-distance rain, snow and fog monitoring, and monitoring of micro-deformation. On the other hand, the current TDD spectrum, such as 3.5GHz and U6G (i.e., 6425MHz to 7125MHz), may have an impact on deployed facilities in adjacent frequency bands, especially satellites. However, using FDD for sensing operations in these frequency bands may circumvent the above problems. Therefore, sensing research in the FDD band is very necessary. Summary of the Invention

[0005] The present application provides a communication and perception integrated device, which can enable FDD massive multiple-input multiple-output (Massive MIMO) (hereinafter referred to as FDD MM) to support perception functions.

[0006] In a first aspect, a communication and perception integrated device is provided, including: a downlink frequency band filter and an uplink frequency band filter, wherein the downlink frequency band filter is used to output a perception excitation signal; the downlink frequency band filter is also used to output a communication downlink signal; the downlink frequency band filter is also used to receive a perception echo signal after the perception excitation signal perceives a target, and send the perception echo signal to a first amplifier; the uplink frequency band filter is used to receive a communication uplink signal; wherein the time domain resource of the downlink frequency band filter outputting the downlink communication signal is different from the time domain resource of the downlink frequency band filter outputting the perception excitation signal.

[0007] In the technical solution of this application, the integrated communication and perception device transmits a perception excitation signal and a communication downlink signal on different time domain resources via a downlink frequency band filter. The downlink frequency band filter is also used to receive a perception echo signal after the perception excitation signal perceives a target and transmits the perception echo signal to a first amplifier. Furthermore, the uplink frequency band filter is used to receive a communication uplink signal and transmit the communication uplink signal to the first amplifier. According to the above technical solution, FDD MM can support perception functions.

[0008] In combination with the first aspect, in certain implementations of the first aspect, it further includes the first amplifier and the second amplifier, the second amplifier being used to output the perception excitation signal and the communication downlink signal to the downlink frequency band filter, and the time domain resources for the second amplifier to output the perception excitation signal are different from the time domain resources for the second amplifier to output the communication downlink signal; the first amplifier is used to receive the perception echo signal from the downlink frequency band filter; the first amplifier is also used to receive the communication uplink signal from the uplink frequency band filter.

[0009] According to the above technical solution, when performing sensing operations on the downlink spectrum, the second amplifier does not need to be broadbanded and can transmit the sensing excitation signal using a power similar to that used for transmitting communication signals, thereby improving performance while reducing costs. Furthermore, performing sensing operations on the downlink spectrum does not affect the performance of the communication uplink.

[0010] In combination with the first aspect, in some implementations of the first aspect, it further includes a first switch, and the downlink frequency band filter is used to output the perception excitation signal through the first switch; the downlink frequency band filter is also used to output the communication downlink signal through the first switch.

[0011] According to the above technical solution, FDD MM can support rapid switching of perception functions and communication modes.

[0012] In combination with the first aspect, in some implementations of the first aspect, a second switch is further included, and the downlink frequency band filter is further used to receive the perception echo signal through the second switch; the uplink frequency band filter is further used to receive the communication uplink signal through the second switch.

[0013] According to the above technical solution, FDD MM can support rapid switching of perception functions and communication modes.

[0014] In combination with the first aspect, in certain implementations of the first aspect, it further includes a first antenna array surface and a second antenna array surface, the first antenna array surface being used to receive and transmit the perception excitation signal from the downlink frequency band filter; the second antenna array surface being used to receive and transmit the communication downlink signal from the downlink frequency band filter; the second antenna array surface being further used to receive and output the perception echo signal to the uplink frequency band filter; the second antenna array surface being further used to receive and output the communication uplink signal to the uplink frequency band filter.

[0015] According to the above technical solution, the FDD MM can support fast switching between the antenna array plane for sensing and the antenna array plane for communication.

[0016] In combination with the first aspect, in certain implementations of the first aspect, the first antenna array surface and the second antenna array surface are isolated from each other.

[0017] According to the above technical solution, the transmit-receive isolation between the first antenna array and the second antenna array can be improved, thereby avoiding mutual interference or blocking between the perception signal and the communication signal.

[0018] With reference to the first aspect, in certain implementations of the first aspect, the perception echo signal and the communication uplink signal are sent on different frequency domain resources.

[0019] In combination with the first aspect, in certain implementations of the first aspect, the second antenna array surface includes a receiving channel for receiving the sensing echo signal and the communication uplink signal.

[0020] According to the above technical solution, the vertical scanning dimension or vertical scanning range of the second antenna array surface can be expanded during perception.

[0021] In combination with the first aspect, in some implementations of the first aspect, a phase shifter is further included, where the phase shifter is used to receive the perception echo signal and the communication uplink signal from the first amplifier.

[0022] According to the above technical solution, the vertical scanning dimension or vertical scanning range of the second antenna array in the perception mode can be expanded. Furthermore, the receiving performance of the uplink in the communication mode can be improved or optimized, which is also an enhancement to the communication mode.

[0023] In combination with the first aspect, in some implementations of the first aspect, the first amplifier is a power amplifier PA, and the second amplifier is a low noise amplifier LNA.

[0024] In the second aspect, a communication and perception integrated device is provided, including: a downlink frequency band filter and an uplink frequency band filter, the downlink frequency band filter is used to output a communication downlink signal; the uplink frequency band filter is used to output a perception excitation signal; the uplink frequency band filter is also used to receive a perception echo signal after the perception excitation signal perceives a target, and sends the perception echo signal to a first amplifier; the uplink frequency band filter is also used to receive a communication uplink signal; wherein, the time domain resources used by the uplink frequency band filter to receive the perception echo signal are different from the time domain resources used by the uplink frequency band filter to receive the communication uplink signal.

[0025] In the technical solution of this application, the integrated communication and perception device transmits a communication downlink signal and a perception excitation signal through a downlink frequency band filter and an uplink frequency band filter, respectively. The uplink frequency band filter is also used to receive the perception echo signal and the communication uplink signal after the perception excitation signal perceives the target, and transmits the perception echo signal and the communication uplink signal to the first amplifier. This technical solution enables FDD MM to support perception functions.

[0026] In combination with the second aspect, in certain implementations of the second aspect, it further includes the first amplifier and the second amplifier, the second amplifier being used to output the communication downlink signal to the downlink frequency band filter; the second amplifier being used to output the perception excitation signal to the uplink frequency band filter; and the first amplifier being used to receive the perception echo signal and the communication uplink signal from the uplink frequency band filter.

[0027] According to the above technical solution, the sensing operation is performed on the uplink spectrum, and the first amplifier does not need to be broadbanded, which can improve performance while reducing costs. In addition, the sensing operation is performed on the uplink spectrum without affecting the performance of the communication downlink.

[0028] In combination with the second aspect, in some implementations of the second aspect, a second switch is further included, and the uplink frequency band filter is further used to receive the perception echo signal through the second switch; the uplink frequency band filter is further used to receive the communication uplink signal through the second switch.

[0029] In combination with the second aspect, in certain implementations of the second aspect, it further includes a first antenna array surface and a second antenna array surface, the first antenna array surface is used to receive and transmit the perception excitation signal from the uplink frequency band filter; the second antenna array surface is used to receive and transmit the communication downlink signal from the downlink frequency band filter; the second antenna array surface is also used to receive and output the perception echo signal to the uplink frequency band filter; the second antenna array surface is also used to receive and output the communication uplink signal to the uplink frequency band filter.

[0030] In combination with the second aspect, in certain implementations of the second aspect, the first antenna array surface and the second antenna array surface are isolated from each other.

[0031] In combination with the second aspect, in certain implementations of the second aspect, the perception excitation signal and the communication downlink signal are sent on different frequency domain resources.

[0032] In combination with the second aspect, in certain implementations of the second aspect, the second antenna array surface includes a receiving channel for receiving the sensing echo signal and the communication uplink signal.

[0033] In combination with the second aspect, in some implementations of the second aspect, a phase shifter is further included, where the phase shifter is used to receive the perception echo signal and the communication uplink signal from the first amplifier.

[0034] In combination with the second aspect, in some implementations of the second aspect, the first amplifier is a power amplifier PA, and the second amplifier is a low noise amplifier LNA.

[0035] It should be understood that the beneficial effects of the second aspect can refer to the beneficial effects described in the first aspect.

[0036] In a third aspect, a communication system is provided, comprising N communication and perception integrated devices as described in the first aspect and any implementation method of the first aspect, wherein N≥1 and N is a positive integer.

[0037] In combination with the third aspect, in certain implementations of the third aspect, M communication-awareness integrated devices among the N communication-awareness integrated devices include phase shifters, where 1≤M≤N.

[0038] In a fourth aspect, a communication system is provided, comprising N communication-sensing integrated devices as described in the second aspect and any implementation method of the second aspect, wherein N≥1 and N is a positive integer.

[0039] In combination with the fourth aspect, in certain implementations of the fourth aspect, M communication-awareness integrated devices among the N communication-awareness integrated devices include phase shifters, where 1≤M≤N. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 Schematic diagram of a communication-aware integrated site.

[0041] Figure 2 The typical antenna array configuration is shown.

[0042] Figure 3 The following is a schematic diagram of the RF and antenna system architecture in a typical 5G FDD MM AAU.

[0043] Figure 4 This is a schematic diagram of the HBF driver architecture.

[0044] Figure 5 Schematic diagram of full-duplex communication and perception integration in the base station module.

[0045] Figure 6 A schematic structural diagram of a communication system 60 provided in an embodiment of the present application.

[0046] Figure 7 An embodiment of the present application provides an operation mode of a signal in the time and frequency dimensions when performing a sensing operation on an uplink and downlink spectrum.

[0047] Figure 8 Schematic diagram of the 2.1GHz spectrum.

[0048] Figure 9 A schematic structural diagram of a communication system 70 provided in yet another embodiment of the present application.

[0049] Figure 10 A specific structural diagram of a communication and perception integrated device provided in an embodiment of the present application.

[0050] Figure 11 A schematic structural diagram of a communication system 80 provided in yet another embodiment of the present application.

[0051] Figure 12 A schematic structural diagram of a communication system 90 provided in an embodiment of the present application.

[0052] Figure 13 An embodiment of the present application provides an operation mode of a signal in the time and frequency dimensions when performing a sensing operation on an uplink and downlink spectrum.

[0053] Figure 14 A schematic structural diagram of a communication system 100 provided in yet another embodiment of the present application.

[0054] Figure 15 A specific structural diagram of a communication and perception integrated device provided in an embodiment of the present application.

[0055] Figure 16A schematic structural diagram of a communication system 110 is provided in accordance with another embodiment of the present application. DETAILED DESCRIPTION

[0056] The technical solutions in this application will be described below in conjunction with the accompanying drawings. To facilitate understanding of the embodiments of this application, first, a brief introduction to the concepts and technologies involved in the embodiments of this application will be given.

[0057] 1. Duplex mode of mobile communication

[0058] The duplex mode of mobile communications, that is, the way to distinguish between uplink and downlink, the uplink refers to the link from the terminal to the base station, and the downlink refers to the link from the base station to the terminal, is generally divided into TDD, FDD, and full duplex (FD). Among them, TDD refers to the use of different time periods (standard terminology is "time slots") to distinguish the uplink and downlink, and the uplink and downlink can share the same frequency band. FDD means that the uplink and downlink operate on different frequency bands and can operate simultaneously. FD means that the uplink and downlink can operate simultaneously on the same frequency. It should be understood that the relevant content of TDD, FDD, and FD can be referred to the existing technology and will not be elaborated here.

[0059] 2. Perception

[0060] The technical principles of perception differ somewhat from those of communication. In communication, a transmitter modulates information onto radio waves and transmits them to a receiver, which then demodulates the signal carried on the radio waves to retrieve the information. Perception, on the other hand, requires the transmitter to send radio waves in a specific direction. When these waves strike a target surface, they reflect back, which the receiver then processes to obtain information such as the target's location, speed, and type.

[0061] A perception signal refers to a signal used to perceive or detect a target. Alternatively, a perception signal refers to a signal used to perceive or detect environmental information. For example, a perception signal is an electromagnetic wave transmitted by a network device to perceive environmental information. A perception signal may also be referred to as a radar signal, a radar perception signal, a detection signal, a radar detection signal, an environmental perception signal, etc., and is not limited in the present embodiment.

[0062] Perception can generally be categorized into two modes: single-station sensing and dual-station sensing. In single-station sensing, the transmitter and receiver of the sensing signal are the same device. In terms of the sensing signal process, the sensing station both transmits the sensing signal and receives the signal reflected from the target surface. Therefore, the single-station sensing mode is also known as the self-transmitting, self-receiving mode. In dual-station sensing, the transmitter and receiver of the sensing signal are different devices. In terms of the sensing signal process, after sensing station A transmits the sensing signal, the signal reflected from the target surface is received by sensing station B. Therefore, the dual-station sensing mode is also known as the A-transmitting, B-receiving mode.

[0063] 3. Communication and perception integration

[0064] Communication and perception integration, also known as synaesthesia fusion, refers to the introduction of "perception" capabilities on top of wireless base stations supporting mobile communication transmission. Perception is characterized by "transmission and reception" (i.e., transmitting an excitation signal and using the echo signal to detect and perceive targets, similar to radar).

[0065] Figure 1 This is a schematic diagram of a communication-aware integrated site. Figure 1 As shown, the communication perception integrated site A not only sends perception signals (such as perception excitation signals) but also receives signals reflected by the perception signals on the target surface (such as perception echo signals). In addition, the communication perception integrated site A can also send communication downlink signals to the target and receive communication uplink signals sent by the target.

[0066] The site that performs communication perception can be a network device or a terminal device.

[0067] The perceived targets can include various tangible objects on the ground, such as mountains, forests, buildings, etc., and can also include vehicles, drones, terminal devices, etc. It should be noted that Figure 1 The vehicles, drones, and user equipment (UE) shown are only examples. In addition to vehicles and drones, the perceived targets may also include pedestrians, terminal devices (including UEs), and other movable objects. This application does not limit this. It should be understood that the communication and perception integrated site A can communicate with perception targets (such as drones, vehicles), in addition to the UEs shown in the figure. This application does not limit this.

[0068] It should also be understood that a sensed target is a target that can be sensed by a network device with sensing capabilities and that can feed electromagnetic waves back to the network device. A sensed target may also be referred to as a detected target, a sensed object, a detected object, or a sensed device, etc., and this embodiment of the application does not limit this.

[0069] It should be noted that Figure 1 The figure shows a schematic diagram of a communication perception integrated site in a single-station perception mode. For information on communication perception integrated sites in a dual-station perception mode, please refer to Figure 1 As shown, no further description is given here.

[0070] It should also be noted that the above Figure 1 The scenario described is merely an example. In one possible scenario, the network side may include multiple integrated communication awareness sites. For example, the network side may also include three or more integrated communication awareness sites. It should be understood that this embodiment of the present application does not impose any limitations on this. For more information on integrated communication awareness sites, please refer to the above description.

[0071] 4. 5G / 6G Massive MIMO active antenna unit (AAU) form factor

[0072] Figure 2 The typical antenna array shape is shown. It can be seen that the driving relationship of the antenna array is: 2 drives vertically and 1 drive horizontally. Figure 3 The following is a typical 5G FDD MM AAU radio frequency and antenna system architecture diagram. Figure 2 and Figure 3 As can be seen, the 5GMM AAU base station module (including TDD and FDD modes) primarily supports communication modes. To minimize the antenna array's footprint, it typically uses a dual-polarization configuration (with elements placed at + / - 45 degrees) with a common transmit and receive antenna plane.

[0073] Multiple power amplifiers (PAs) drive the antenna array to transmit downlink signals, while multiple low-noise amplifiers (LNAs) receive uplink signals. The duplexer shown in the figure actually functions as a filter, separating the uplink and downlink spectrum. In other words, the duplexer consists of an uplink filter and a downlink filter.

[0074] 5. Digital beam forming (DBF) and hybrid beam forming (HBF) driving modes

[0075] It should be noted that Figure 3 The structure shown is a typical DBF drive form. Figure 4 This is a schematic diagram of the HBF driver architecture. It should be understood that Figure 4 In IEEE 802.11ac, phase shifters are introduced in both uplink and downlink.

[0076] 6. Full-duplex communication and perception integrated node

[0077] If Figure 3 and Figure 4 Introducing perception operations based on the architecture shown requires that the transmitted perception excitation signal and the perception echo signal complement each other in interfering or blocking each other, and in this case, it is usually necessary to introduce a "full-duplex" function. Figure 5 This is a schematic diagram of the full-duplex communication and perception integration in the base station module, as shown in Figure 5 As shown in FIG, the self-interference of the transmitted perception excitation signal on the received perception echo signal can be removed by a “cancellation” approach. It should be noted that this approach is applicable to both TDD MM AAU and FDD MM AAU.

[0078] The present application aims to provide a communication and perception integrated device that can enable FDD MIMO to support perception functions.

[0079] It should be understood that the communication and perception integrated device can also be called a synaesthesia fusion device, or can also be called a device, and the embodiments of the present application do not limit this.

[0080] The embodiments of the present application are described in detail below with reference to the specific drawings.

[0081] Figure 6 This is a schematic structural diagram of a communication system 60 provided in an embodiment of the present application. Figure 6 As shown, the communication system 60 includes N communication sensing integrated devices (eg Figure 6 It should be understood that the communication perception integrated device #61, communication perception integrated device #62, ..., communication perception integrated device #6n shown in Figure 6 The N communication and perception integrated devices have the same structure.

[0082] To facilitate understanding of the embodiments of the present application, the specific structure of the communication and perception integrated device included in the communication system 60 is described in detail below, mainly taking the communication and perception integrated device #61 as an example.

[0083] like Figure 6 As shown, the communication perception integrated device #61 specifically includes: a downlink frequency band filter 611 and an uplink frequency band filter 612.

[0084] The downlink frequency band filter 611 is used to output the perceptual excitation signal and the downlink communication signal, and the time domain resource for outputting the perceptual excitation signal from the downlink frequency band filter 611 is different from the time domain resource for outputting the perceptual excitation signal from the downlink frequency band filter 611. That is, although the perceptual excitation signal and the downlink communication signal are transmitted on the same spectrum (downlink spectrum), the time domain resources for transmitting the perceptual excitation signal and the downlink communication signal are different. Exemplarily, the time domain resource can be a time slot, that is, the perceptual excitation signal and the downlink communication signal are transmitted on different time slots.

[0085] It should be noted that the time domain resources involved in this application may be other time domain resources in addition to time slots. It should be understood that the embodiments of this application do not limit this.

[0086] Figure 7 An embodiment of the present application provides an operation mode of the signal in the time and frequency dimensions when performing a perception operation on the uplink and downlink spectrum. It should be noted in advance that the communication time slot in the uplink spectrum refers to the time slot (or moment) for receiving the communication uplink signal, the communication time slot in the downlink spectrum refers to the time slot (or moment) for outputting the communication downlink signal, and the perception time slot refers to the time slot (or moment) for outputting the perception excitation signal and receiving the perception echo signal.

[0087] For example, Figure 7 As shown, a time frame is used for the description. Assuming that a frame contains 10 time slots, the communication downlink signal is located in the first 8 time slots, and the perception excitation signal is located in the last 2 time slots. In other words, the downlink frequency band filter 611 outputs the communication downlink signal in the first 8 time slots and outputs the perception excitation signal in the last 2 time slots.

[0088] Furthermore, the downlink frequency band filter 611 is also used to receive the perception echo signal. It should be understood that the perception echo signal is the echo signal reflected by the perception stimulus signal after the perception target. Figure 7 As shown, the perception echo signal is also located in the last two time slots, that is, the downlink frequency band filter 611 will also receive the perception echo signal in the last two time slots. It should be noted that the specific division of time slots needs to be designed according to the specific performance requirements of communication and perception, and this embodiment is only an assumption.

[0089] Continue to see Figure 6 and Figure 7, the uplink frequency band filter 612 is used to receive the communication uplink signal. And the uplink frequency band filter 612 receives the communication uplink signal in all time slots. It should be noted that in the embodiment of the present application, the communication uplink signal and the perception echo signal are located in different time domain resources, or in other words, the time domain resource used by the uplink frequency band filter 612 to receive the communication uplink signal is different from the time domain resource used by the downlink frequency band filter 611 to receive the perception echo signal. Exemplarily, the time domain resource can be a time slot.

[0090] Optionally, in a possible implementation, the communication and sensing integrated device may further include a first amplifier 613 .

[0091] Specifically, the first amplifier 613 is configured to receive the perception echo signal from the downlink frequency band filter 611, and is also configured to receive the communication uplink signal from the uplink frequency band filter 612. It should be understood that the first amplifier 613 is configured to amplify the received perception echo signal and the communication uplink signal. Exemplarily, the first amplifier 613 may be an LNA.

[0092] Since, in this embodiment of the present application, the sensing echo signal and the communication uplink signal are transmitted on different frequency domain resources, for example, the sensing echo signal is transmitted in the downlink spectrum, and the communication uplink signal is transmitted in the uplink spectrum, in this embodiment of the present application, the first amplifier 613 needs to support both the uplink spectrum and the downlink spectrum.

[0093] In order to enable the first amplifier 613 to support the uplink spectrum and the downlink spectrum of FDD, the first amplifier 613 needs to be broadbanded.

[0094] Figure 8 This is a schematic diagram of the 2.1GHz spectrum, as shown in Figure 8 As shown, the first amplifier 613 is used as an LNA for illustration. Assuming a 2.1 GHz spectrum, without sensing operations, the LNA only needs to support the 1920-1965 MHz frequency band, that is, the LNA only needs to support the uplink spectrum. However, in this application, the LNA not only receives uplink communication signals but also sensing echo signals sent from the downlink spectrum. Therefore, the LNA needs to support the 1920-2155 MHz frequency band, necessitating broadband processing of the LNA.

[0095] It should be noted that although the sensing echo signal and the communication uplink signal pass through the same amplifier (ie, the first amplifier 613), the sensing echo signal and the communication uplink signal are located in different time domain resources. For example, the time domain resource may be a time slot.

[0096] Optionally, in a possible implementation, the communication and sensing integrated device further includes a second amplifier 614 .

[0097] Specifically, the second amplifier 614 is configured to output the perceptual excitation signal and the communication downlink signal to the downlink frequency band filter 611. Furthermore, the second amplifier 614 outputs the perceptual excitation signal and the communication downlink signal in different time domain resources. Exemplarily, the time domain resource may be a time slot, meaning that the perceptual excitation signal and the communication downlink signal are output in different time slots.

[0098] It should be understood that the function of the second amplifier 614 is to amplify the power of the perception excitation signal and the communication downlink signal. Exemplarily, the second amplifier 614 may be a PA.

[0099] Since both the perception excitation signal and the communication downlink signal are sent on the downlink spectrum, in this case, the second amplifier 614 only needs to support the downlink spectrum. Figure 8 As shown, it supports 2110-2155 MHz, and there is no need to perform broadband processing on the second amplifier 614.

[0100] It should be understood that the spectrum of 2.1 GHz mentioned above is only an example and is not limited to this embodiment of the present application.

[0101] According to the above technical solution, when performing sensing operations on the downlink spectrum, the PA does not need to be broadbanded, and can use a power similar to that used to transmit communication signals to transmit sensing excitation signals, which can improve product performance while reducing production costs.

[0102] Optionally, in a possible implementation, the communication and perception integrated device further includes a first switch. Figure 9 FIG. 7 is a schematic structural diagram of a communication system 70 provided in another embodiment of the present application. Figure 9 As shown, the communication perception integrated device in the communication system may further include a first switch 615 .

[0103] Specifically, the downlink frequency band filter 611 can output the perception excitation signal and the communication downlink signal separately through the first switch 615. For example, the perception excitation signal and the communication downlink signal (wherein the perception excitation signal and the communication downlink signal are in different time slots) sent by the second amplifier 614 pass through the downlink frequency band filter 611 and then pass through the first switch 615 to form the perception excitation signal and the communication downlink signal respectively.

[0104] It should be noted that the downlink frequency band filter 611 outputs the perception excitation signal and the communication downlink signal respectively through the first switch 615 in the following manners.

[0105] Method 1: During the sensing time slot (or sensing moment), the first switch 615 switches to the first end (L1), and the downlink frequency band filter 611 outputs the sensing excitation signal through the first end to drive the sensing excitation array of the antenna array, which transmits the sensing excitation signal. During the communication time slot (or communication moment), the first switch 615 switches to the second end (L2), and the downlink frequency band filter 611 outputs the communication downlink signal to drive the sensing echo reception and communication mode resonant surface (hereinafter referred to as the sensing communication resonant surface) of the antenna array, which transmits the communication downlink signal.

[0106] In this case, the first switch 615 can be considered to switch between the perception mode and the communication mode to output the perception excitation signal and the communication downlink signal respectively. It should be understood that whether the downlink frequency band filter 611 outputs the perception excitation signal or the communication downlink signal through the first switch 615 is actually a time slot selection.

[0107] In a second embodiment, the first switch 615 includes a first end (L1) and a second end (L2), wherein the first end (L1) is used to connect to the perception excitation array, and the second end (L2) is used to connect to the perception communication resonance surface. Exemplarily, during a perception time slot (or perception moment), the perception excitation signal passing through the downlink frequency band filter 611 outputs the perception excitation signal through the first end to drive the perception excitation array, which transmits the perception excitation signal. During a communication time slot (or communication moment), the perception excitation signal passing through the downlink frequency band filter 611 outputs the communication downlink signal through the second end to drive the perception communication resonance surface, which transmits the communication downlink signal.

[0108] In this case, it can be considered that the first switch 615 does not need to switch between the first end (L1) and the second end (L2), and only needs to output different signals to different antenna array surfaces through the first end (L1) and the second end (L2) at different time slots (or moments).

[0109] It should be noted that the first switch 615 described above needs to meet RF performance requirements such as high isolation, low insertion loss, and fast switching. For example, high isolation requires that the isolation meets the basic isolation requirements for transmitting and receiving (>25dB), low insertion loss requires that the insertion loss is less than 0.2dB, and fast switching requires a switching speed of 100 nanoseconds or faster.

[0110] It should be understood that the first switch 615 may also be referred to as a synaesthesia mode selection switch, a selection switch, or a synaesthesia selection switch, etc., and the embodiment of the present application does not limit this.

[0111] It should also be understood that the first switch 615 can be a single-pole single-throw switch, or a radio frequency switch, etc., and the embodiment of the present application does not limit this.

[0112] Continue to see Figure 9Optionally, in a possible implementation, the communication-awareness integrated device further includes a second switch. For example, the communication-awareness integrated device #61 further includes a second switch 616.

[0113] Specifically, the downlink frequency band filter 611 is configured to receive the perception echo signal through the second switch 616, and the uplink filter is configured to receive the communication uplink signal through the second switch 616. The perception echo signal and the communication uplink signal are transmitted on different frequency domain resources, and the perception echo signal and the communication uplink signal are also located on different time-frequency resources. For example, the time-frequency resource may be a time slot.

[0114] The second switch 616 switches between the communication mode and the sensing mode. For example, in the sensing time slot (or sensing moment), the second switch 616 switches to connect to the downlink frequency band filter 611 so that the downlink frequency band filter 611 receives the sensing echo signal through the second switch 616. Subsequently, the received sensing echo signal passes through the second amplifier 614 and enters the signal processing unit (not shown in the figure) for signal processing. In the communication time slot (or communication moment), the second switch 616 switches to connect to the uplink frequency band filter 612 so that the uplink frequency band filter 612 receives the communication uplink signal through the second switch 616. Subsequently, the received communication uplink signal passes through the second amplifier 614 and enters the signal processing unit (not shown in the figure) for signal processing. It should be understood that for signal processing, specific reference can be made to the prior art, and this application will not elaborate on it.

[0115] It should be noted that the uplink frequency band filter 612 receives the communication uplink signal through the second switch 616, or the downlink frequency band filter 611 receives the perception echo signal through the second switch 616, which is actually the time slot selection performed by the second switch 616.

[0116] It should be understood that the second switch 616 can be a logic switch, or can also be a radio frequency switch or a single-pole single-throw switch, etc., and the embodiment of the present application does not limit this.

[0117] Continue to see Figure 6 and Figure 9 Optionally, in a possible implementation, the communication and sensing integrated device further includes a first antenna array surface S1 and a second antenna array surface S2.

[0118] Specifically, the first antenna array face S1 is configured to receive a perceptual excitation signal from the downlink frequency band filter 611. The perceptual excitation signal is configured to drive the first antenna array face S1, and the first antenna array face S1 transmits the perceptual excitation signal. It should be noted that the first antenna array face S1 may be the perceptual excitation array face described above. It should be understood that the perceptual excitation array face may also be referred to as a perceptual excitation signal transmitting array face, a perceptual excitation transmitting array face, etc., and this application does not limit this.

[0119] Optionally, the first antenna array S1 may transmit at full power when transmitting the sensing excitation signal, in which case the coverage of the first antenna array S1 can be expanded.

[0120] Optionally, the first antenna array S1 includes a smaller number of elements. In this case, the first antenna array S1 can emit a relatively wide beam, thereby expanding the coverage range.

[0121] The second antenna array surface S2 is used to receive downlink communication signals from the downlink frequency band filter 611. The downlink communication signals are used to drive the second antenna array surface S2, which transmits the downlink communication signals. It should be noted that the second antenna array surface S2 may be the aforementioned sensing echo reception and communication mode resonance surface. It should be understood that the sensing echo reception and communication mode resonance surface may also be referred to as a sensing communication resonance surface, a resonance surface, etc., and this application does not limit this.

[0122] Furthermore, the second antenna array surface S2 is also used to receive the perception echo signal reflected by the perception target, and output the perception echo signal to the downlink frequency band filter 611 through the second switch 616, and the second antenna array surface S2 is also used to receive the communication uplink signal, and output the communication uplink signal to the uplink frequency band filter 612 through the second switch 616.

[0123] In the embodiment of the present application, a receiving circuit channel is added, which connects the second antenna array S2 to the downlink frequency band filter 611 and then to the first amplifier 613, so as to better receive and perceive the echo signal.

[0124] Optionally, in a possible implementation, the first antenna array surface S1 and the second antenna array surface S2 are isolated from each other. It should be understood that in the embodiment of the present application, the first antenna array surface S1 and the second antenna array surface S2 adopt a separate architecture.

[0125] For example, an isolation area is provided between the first antenna array surface S1 and the second antenna array surface S2 for isolating the sensing excitation signal from the sensing echo signal.

[0126] Optionally, the isolation region may be further enhanced by means of isolation enhancement, for example, by filling the isolation region with an absorbing material to improve isolation; or by using advanced metamaterials in the isolation region to improve isolation. It should be understood that other means may also be used to enhance isolation, and this embodiment of the present application is not limited thereto.

[0127] For another example, the first antenna array surface S1 and the second antenna array surface S2 may also be isolated from each other by spatial isolation, wherein the spatial isolation may be understood as the distance between the first antenna array surface S1 and the second antenna array surface S2 being greater than a certain value.

[0128] It should be noted that in the embodiment of the present application, the size of the first antenna array surface S1, the size of the second antenna array surface S2, and the size of the isolation area are mutually constrained. The following is a detailed explanation using the example of the first antenna array surface S1 being a sensory excitation surface and the second antenna array surface S2 being a synaesthesia resonance surface.

[0129] Theoretically, the larger the sensory excitation array, the better. However, currently, commercial antenna arrays for communications are subject to strict size regulations. For example, there are requirements for the total windward surface area and the spacing between antenna elements (typically half a wavelength) at specific frequencies. Therefore, the size of the sensory excitation array, the size of the common sensor array, and the size of the isolation area between the two are mutually constrained. Therefore, comprehensive considerations are required to select an optimal size that meets the required sensory indicators, ensures isolation without compromising performance, and ensures that the antenna array does not exceed commercial size limits.

[0130] Figure 10 A specific structural diagram of a communication perception integrated device provided in an embodiment of the present application, such as Figure 10 As shown, after comprehensive consideration, if more than two rows of arrays are used in the perception excitation array and the synaesthesia resonance surface, taking into account the vertical array spacing (for example, 120 mm), the total vertical height of 1600-120x2-120x8=400 mm, and the isolation interval is too small to ensure isolation, it is concluded that the array of the perception excitation array is 2 rows and 8 columns, or 1 row and 8 columns. The specific design can be based on the perception coverage link budget requirements. The synaesthesia common array surface still has 8 rows and 8 columns, and all antenna array elements are cross-polarized.

[0131] It should be noted that the above description assumes a 2.1 GHz spectrum. It should be understood that the wavelength of the 2.1 GHz spectrum is 143 mm, and the vertical array spacing (e.g., 120 mm) mentioned above is approximately 0.83 wavelengths. It should also be understood that the 2.1 GHz spectrum is merely an example, and accordingly, the specific values ​​of the parameters (vertical array spacing, vertical total height, etc.) mentioned above are also merely examples.

[0132] from Figure 10 It can be seen that the total height of the isolation area can be about 400 mm, and the isolation area can be filled with isolation metamaterials (or other isolation means) to improve the isolation between the perception excitation array and the synaesthesia resonance surface, thereby achieving isolation between the perception excitation signal and the perception echo signal. Figure 10 In the structure shown, the isolation requirement is at least greater than 65dB.

[0133] It should be understood that the isolation metamaterial can be a material with high isolation performance, and there are other means to improve the isolation degree, which is not limited in the embodiments of the present application.

[0134] For example, combined Figure 2 and Figure 10 It can be seen that in the embodiment of the present application, the TRX (antenna array) driving relationship is 1 drive 1 horizontally (a total of 16 TRXs), and in the vertical dimension, the perception excitation array is 2 drive 2 (1 drive is also possible, and can be designed based on the coverage link budget), and the synaesthesia common array is 2 drive vertically.

[0135] Optionally, in a possible implementation, the communication and perception integrated device further includes a phase shifter. Figure 11 FIG. 8 is a schematic structural diagram of a communication system 80 provided in another embodiment of the present application. Figure 11 As shown, the communication-aware integrated device #61 also includes a phase shifter 617.

[0136] Specifically, a phase shifter 617 is provided in the receiving channel of the second antenna array surface S2. This phase shifter 617 is used to receive the sensing echo signal and the communication uplink signal from the first amplifier 613. It should be understood that the placement of the phase shifter 617 in the receiving channel of the second antenna array surface S2 can expand the vertical scanning dimension or vertical scanning range of the second antenna array surface S2 in sensing mode. In other words, the phase shifter 617 creates an "asymmetric" design for the vertical uplink and downlink. "Asymmetric" design can be understood as only providing the phase shifter 617 in the uplink, or including more receiving channels in the uplink.

[0137] In the embodiment of the present application, this asymmetric design improves or optimizes the uplink reception performance in the communication mode, which is also an enhancement to the communication mode.

[0138] It should be noted that not all communication and perception integrated devices include the phase shifter 617. That is to say, among N communication and perception integrated devices, there may be M communication and perception integrated devices including the phase shifter 617 described above, where N≥1, and N is a positive integer, 1≤M≤N.

[0139] In one case, M=1, that is, only one of the N communication-aware integration devices includes a phase shifter 617. For example, Figure 11 As shown, the communication-aware integrated device #61 includes a phase shifter 617.

[0140] In another case, M is between 1 and N, that is, M of the N integrated communication and awareness devices include phase shifter 617, and (NM) integrated communication and awareness devices do not include phase shifter 617. For example, when M=2, one possible case is that integrated communication and awareness device #61 and integrated communication and awareness device #62 include phase shifter 617.

[0141] In another case, M=N, that is, all of the N communication-awareness integrated devices include the phase shifter 617. For example, the communication-awareness integrated devices #61 to #6n include the phase shifter 617.

[0142] In another case, M=0, that is, all the communication-awareness integrated devices in the N communication-awareness integrated devices do not include the phase shifter 617 mentioned above.

[0143] It should be noted that Figure 11 What is shown is only a possible example, and the embodiments of the present application are not limited to this.

[0144] It should also be noted that the phase shifter 617 can be set not only in the uplink, but also in the downlink. It should be understood that the embodiment of the present application does not limit this.

[0145] Optionally, in one possible implementation, the second antenna array surface S2 further includes a receiving channel for receiving the sensing echo signal and the communication uplink signal. In the embodiment of the present application, the second antenna array surface S2 includes a receiving channel for receiving the sensing echo signal and the communication uplink signal. It can be understood that the second antenna array surface S2 includes N times the receiving channels for receiving the sensing echo signal and the communication uplink signal, where N ≥ 2.

[0146] Continue to see Figure 11 Taking the example of integrated communication and perception device #6n, which includes receiving channels for receiving sensing echo signals and communication uplink signals, as an example, assuming that the original integrated communication and perception device #6n has 32 receiving channels (receiving sensing echo signals and communication uplink signals), to expand the vertical scanning dimension or vertical scanning range of the second antenna array S2 during sensing, the number of receiving channels of the integrated communication and perception device #6n is increased to 64 (see the dashed line portion in the figure). It should be understood that the above is merely an example and is not intended to be limiting in this application.

[0147] Alternatively, in one possible implementation, to ensure coverage of the sensor excitation signal and increase the scanning range of the echo signal, the first antenna array plane S1 may use fewer array elements in the vertical dimension. In this case, the first antenna array plane S1 can transmit a wider beam signal with higher transmission power, thereby ensuring coverage.

[0148] According to the above technical solution, FDD MIMO can support the sensing function, and further, can correctly use the FDD spectrum and support fast switching between the sensing mode and the communication mode.

[0149] Figure 12 This is a schematic structural diagram of a communication system 90 provided in an embodiment of the present application. Figure 12 As shown, the communication system 90 includes N communication sensing integrated devices (e.g. Figure 12 , communication-awareness integrated device #91, communication-awareness integrated device #92, ..., communication-awareness integrated device #9n). It should be understood that the N communication-awareness integrated devices included in the communication system 90 have the same structure.

[0150] To facilitate understanding of the embodiments of the present application, the specific structure of the communication perception integrated device in the communication system 90 is described in detail below, mainly taking the communication perception integrated device #91 as an example.

[0151] like Figure 12 As shown, the communication perception integrated device #91 specifically includes a downlink frequency band filter 911 and an uplink frequency band filter 912.

[0152] Among them, the downlink frequency band filter 911 is used to output the communication downlink signal, and the uplink frequency band filter 912 is used to output the perception excitation signal, and the time domain resources of the downlink frequency band filter 911 outputting the communication downlink signal and the uplink frequency band filter 912 outputting the perception excitation signal are different. Exemplarily, the time-frequency resource can be a time slot, that is, the perception excitation signal and the communication downlink signal are sent in different time slots.

[0153] The uplink frequency band filter 912 is also used to receive the perception echo signal and the communication uplink signal. It should be noted that the time domain resources used by the uplink frequency band filter 912 to receive the perception echo signal are different from the time domain resources used by the uplink frequency band filter 912 to receive the communication uplink signal. The perception echo signal is the echo signal reflected by the perception stimulus signal after the perception target.

[0154] It should be noted that the time domain resources involved in this application may be other time domain resources in addition to time slots. It should be understood that the embodiments of this application do not limit this.

[0155] Figure 13 An embodiment of the present application provides an operation mode of the signal in the time and frequency dimensions when performing a perception operation on an uplink and downlink spectrum. It should be noted in advance that the communication time slot in the uplink spectrum refers to the time slot (or moment) for receiving the communication uplink signal, the perception time slot refers to the time slot (or moment) for outputting the perception excitation signal and receiving the perception echo signal, and the communication time slot in the downlink spectrum refers to the time slot (or moment) for outputting the communication downlink signal.

[0156] For example, Figure 13As shown, a frame is used as a time frame for illustration. Assuming a frame contains 10 time slots, the uplink communication signal is located in the first 8 time slots, and the sensing echo signal is located in the last 2 time slots. In other words, the uplink frequency band filter 912 receives the uplink communication signal in the first 8 time slots and the sensing echo signal in the last 2 time slots. It should be noted that the specific time slot division needs to be designed based on the specific performance requirements of communication and sensing. This embodiment is only an assumption.

[0157] It should be noted that in this embodiment of the present application, the communication downlink signal and the perceptual excitation signal are located in different time domain resources. That is, the time domain resources used by the downlink frequency band filter 911 to output the communication downlink signal and the uplink frequency band filter 912 to output the perceptual excitation signal are different. Exemplarily, the time domain resources may be time slots.

[0158] Optionally, in a possible implementation, the communication and sensing integrated device further includes a first amplifier 913 .

[0159] Specifically, the first amplifier 913 is configured to receive the perception echo signal and the communication uplink signal from the uplink frequency band filter 912. It should be understood that the first amplifier 913 is configured to amplify the received perception echo signal and the communication uplink signal. Exemplarily, the first amplifier 913 may be a low noise amplifier (LNA).

[0160] Since the sensing echo signal and the communication uplink signal are sent on the same frequency domain resources in the embodiment of the present application, for example, the sensing echo signal and the communication uplink signal are both sent on the uplink spectrum. Therefore, in the embodiment of the present application, the first amplifier 913 only supports the uplink spectrum. Figure 8 , the first amplifier 913 only supports 1920~1965MHz, and there is no need to perform broadband processing on the first amplifier 913.

[0161] Optionally, in a possible implementation, the communication and sensing integrated device further includes a second amplifier 914 .

[0162] Specifically, the second amplifier 914 is used to output a communication downlink signal to the downlink frequency band filter 911, and the second amplifier 914 is also used to output a perception excitation signal to the uplink frequency band filter 912. It should be understood that the function of the second amplifier 914 is to amplify the power of the perception excitation signal and the communication downlink signal. Exemplarily, the second amplifier 914 can be a PA.

[0163] Since, in this embodiment of the present application, the sensory excitation signal and the communication downlink signal are transmitted on different frequency domain resources, for example, the sensory excitation signal is transmitted in the uplink spectrum, and the communication downlink signal is transmitted in the downlink spectrum, in this embodiment of the present application, the second amplifier 914 needs to support both the uplink spectrum and the downlink spectrum.

[0164] In order to enable the second amplifier 914 to support the uplink spectrum and the downlink spectrum of FDD, the second amplifier 914 needs to be broadbanded.

[0165] Continue to see Figure 8 For the purpose of illustration, the second amplifier 914 is used as the PA. Assuming a 2.1 GHz spectrum, without sensing operations, the PA only needs to support the 2110-2155 MHz frequency band, that is, the PA only needs to support the downlink spectrum. However, in this application, the PA not only transmits downlink communication signals in the downlink spectrum, but also transmits sensing excitation signals in the uplink spectrum. Therefore, the PA needs to support the 1920-2155 MHz frequency band, necessitating broadband processing of the PA.

[0166] It should be noted that although the perception excitation signal and the communication downlink signal pass through the same amplifier (ie, the second amplifier 914), it is obvious that the perception excitation signal and the communication downlink signal are located in different frequency domain resources.

[0167] It should also be noted that the perception excitation signal and the communication downlink signal are also located in different time-frequency resources, that is, the perception excitation signal and the communication downlink signal are sent on different time domain resources. Exemplarily, the time domain resource can be a time slot.

[0168] It should be understood that the spectrum of 2.1 GHz mentioned above is only an example and is not limited to this embodiment of the present application.

[0169] According to the above technical solution, sensing operations are performed on the uplink spectrum, and the LNA does not need to perform broadband processing, which can improve product performance while reducing production costs.

[0170] Optionally, in a possible implementation, the communication and perception integrated device further includes a second switch 915, Figure 14 FIG1 is a schematic structural diagram of a communication system 100 provided in another embodiment of the present application. Figure 14 As shown, the communication awareness integrated device #91 in the communication system 100 may also include a second switch 915.

[0171] Specifically, the uplink frequency band filter 912 is used to receive the perception echo signal through the second switch 915, and the uplink frequency band filter 912 is also used to receive the communication uplink signal through the second switch 915, wherein the perception echo signal and the communication uplink signal are sent on different time domain resources. Exemplarily, the time domain resource can be a time slot.

[0172] The second switch 915 switches between the communication mode and the perception mode. For example, in the perception time slot (or perception moment), the second switch 915 switches the connection between the uplink frequency band filter 912 and the receiving channel of the perception echo signal, so that the uplink frequency band filter 912 receives the perception echo signal through the second switch 915. Subsequently, the received perception echo signal passes through the second amplifier 914 and enters the signal processing unit (not shown in the figure) for signal processing. In the communication time slot (or communication moment), the second switch 915 switches the connection between the uplink frequency band filter 912 and the receiving channel of the communication uplink signal, so that the uplink frequency band filter 912 receives the communication uplink signal through the second switch 915. Subsequently, the received communication uplink signal passes through the second amplifier 914 and enters the signal processing unit (not shown in the figure) for signal processing. It should be understood that for signal processing, specific reference can be made to the prior art, and this application will not elaborate on it.

[0173] It should be noted that whether the uplink frequency band filter 912 receives the communication uplink signal through the second switch 915 or the uplink frequency band filter 912 receives the perception echo signal through the second switch 915 is actually the time slot selection performed by the second switch 915.

[0174] It should be understood that the second switch 915 can be a logic switch, or can also be a radio frequency switch or a single-pole single-throw switch, etc., and the embodiment of the present application does not limit this.

[0175] According to the above technical solution, the uplink spectrum is used for sensing operations without introducing the first switch, which can reduce complexity and has little impact on the performance of the communication downlink.

[0176] Continue to see Figure 12 and Figure 14 Optionally, in a possible implementation, the communication and sensing integrated device further includes a first antenna array surface S1 and a second antenna array surface S2.

[0177] Specifically, the first antenna array face S1 is configured to receive a perceptual excitation signal from the uplink frequency band filter 912. The perceptual excitation signal is configured to drive the first antenna array face S1, and the first antenna array face S1 transmits the perceptual excitation signal. It should be noted that the first antenna array face S1 may be the perceptual excitation array face described above. It should be understood that the perceptual excitation array face may also be referred to as a perceptual excitation signal transmitting array face, a perceptual excitation transmitting array face, etc., and this application does not limit this.

[0178] Optionally, the first antenna array S1 may transmit at full power when transmitting the sensing excitation signal, in which case the coverage of the first antenna array S1 can be expanded.

[0179] Optionally, the first antenna array S1 includes a smaller number of elements. In this case, the first antenna array S1 can emit a relatively wide beam, thereby expanding the coverage range.

[0180] The second antenna array surface S2 is used to receive downlink communication signals from the downlink frequency band filter 911. The downlink communication signals are used to drive the second antenna array surface S2, which transmits the downlink communication signals. It should be noted that the second antenna array surface S2 can be the aforementioned sensing echo reception and communication mode resonance surface. It should be understood that the sensing echo reception and communication mode resonance surface can also be referred to as a sensing communication resonance surface, a resonance surface, etc., and this application does not limit this.

[0181] Furthermore, the second antenna array surface S2 is also used to receive the perception echo signal reflected by the perception target, and output the perception echo signal to the uplink frequency band filter 912 through the second switch 915, and the second antenna array surface S2 is also used to receive the communication uplink signal, and output the communication uplink signal to the uplink frequency band filter 912 through the second switch 915.

[0182] Optionally, in a possible implementation, the first antenna array surface S1 and the second antenna array surface S2 are isolated from each other. It should be understood that in the embodiment of the present application, the first antenna array surface S1 and the second antenna array surface S2 adopt a separate architecture.

[0183] For example, an isolation area is provided between the first antenna array surface S1 and the second antenna array surface S2 for isolating the sensing excitation signal from the sensing echo signal.

[0184] Optionally, the isolation region may be further enhanced by means of isolation enhancement, for example, by filling the isolation region with an absorbing material to improve isolation; or by using advanced metamaterials in the isolation region to improve isolation. It should be understood that other means may also be used to enhance isolation, and this embodiment of the present application is not limited thereto.

[0185] For another example, the first antenna array surface S1 and the second antenna array surface S2 may also be isolated from each other by spatial isolation, wherein the spatial isolation may be understood as the distance between the first antenna array surface S1 and the second antenna array surface S2 being greater than a certain value.

[0186] It should be noted that in the embodiment of the present application, the size of the first antenna array surface S1, the size of the second antenna array surface S2, and the size of the isolation area are mutually constrained. For the relevant description of the mutual constraints between the size of the first antenna array surface S1, the size of the second antenna array surface S2, and the size of the isolation area, please refer to the previous description and will not be repeated here.

[0187] Figure 15 A specific structural diagram of a communication perception integrated device provided in an embodiment of the present application, such as Figure 15 As shown, after comprehensive consideration, if more than two rows of arrays are used in the perception excitation array and the synaesthesia resonance surface, taking into account the vertical array spacing (for example, 120 mm), the total vertical height of 1600-120x2-120x8=400 mm, and the isolation interval is too small to ensure isolation, it is concluded that the array of the perception excitation array is 2 rows and 8 columns, or 1 row and 8 columns. The specific design can be based on the perception coverage link budget requirements. The synaesthesia common array surface still has 8 rows and 8 columns, and all antenna array elements are cross-polarized.

[0188] It should be noted that the above description assumes a 2.1 GHz spectrum. It should be understood that the wavelength of the 2.1 GHz spectrum is 143 mm, and the vertical array spacing (e.g., 120 mm) mentioned above is approximately 0.83 wavelengths. It should also be understood that the 2.1 GHz spectrum is merely an example, and accordingly, the specific values ​​of the parameters (vertical array spacing, vertical total height, etc.) mentioned above are also merely examples.

[0189] from Figure 15 It can be seen that the total height of the isolation area can be about 400mm, and the isolation area can be filled with isolation metamaterials to improve the isolation between the sensory excitation array and the synaesthesia resonance surface, thereby achieving isolation between the sensory excitation signal and the sensory echo signal. Figure 15 In the structure shown, the isolation requirement is at least greater than 65dB.

[0190] It should be understood that the isolation metamaterial can be a material with high isolation performance, or other means to improve isolation, and the embodiments of the present application are not limited to this.

[0191] For example, combined Figure 2 and Figure 10 It can be seen that in the embodiment of the present application, the TRX driving relationship is 1 drive 1 horizontally (for 16 TRXs), and in the vertical dimension, the perception excitation array is 2 drive 2 (1 drive is also possible, and can be designed based on the coverage link budget), and the synaesthesia common array is 2 drive vertically.

[0192] Optionally, in a possible implementation, the communication and sensing integrated device further includes a phase shifter. Figure 16A schematic structural diagram of a communication system 110 is provided for another embodiment of the present application. For example, the communication and perception integrated device #91 further includes a phase shifter 916.

[0193] like Figure 16 As shown, a phase shifter 916 is provided in the receiving channel of the second antenna array surface S2. This phase shifter 916 is used to receive the sensing echo signal and the communication uplink signal from the first amplifier 913. It should be understood that the placement of the phase shifter 916 in the receiving channel of the second antenna array surface S2 can expand the vertical scanning dimension or vertical scanning range of the second antenna array surface S2 in sensing mode. In other words, the effect of the phase shifter 916 creates an "asymmetric" design for the vertical uplink and downlink. "Asymmetric" design can be understood as only providing the phase shifter 916 in the uplink, or including more receiving channels in the uplink.

[0194] In the embodiment of the present application, this asymmetric design improves or optimizes the uplink reception performance in the communication mode, which is also an enhancement to the communication mode.

[0195] It should be noted that not all communication and perception integrated devices include the phase shifter 916. That is to say, among N communication and perception integrated devices, there may be M communication and perception integrated devices including the phase shifter 916 described above, where N≥1, and N is a positive integer, 1≤M≤N.

[0196] In one case, M=1, that is, only one of the N communication-sensing integrated devices includes a phase shifter 916, for example Figure 12 As shown, the communication-aware integrated device #n includes a phase shifter 916 .

[0197] In another case, the value of M is between 1 and N, that is, among the N communication-awareness integrated devices, M communication-awareness integrated devices include the phase shifter 916 , and (NM) communication-awareness integrated devices do not include the phase shifter 916 .

[0198] In another case, M=N, that is, all the N communication-awareness integrated devices include the phase shifter 916 .

[0199] In another case, M=0, that is, all the communication-awareness integrated devices in the N communication-awareness integrated devices do not include the phase shifter 916 mentioned above.

[0200] It should be noted that the phase shifter 916 can be set not only in the uplink, but also in the downlink. It should be understood that the embodiment of the present application does not limit this.

[0201] Optionally, in one possible implementation, the second antenna array surface S2 further includes a receiving channel for receiving the sensing echo signal and the communication uplink signal. In the embodiment of the present application, the second antenna array surface S2 includes a receiving channel for receiving the sensing echo signal and the communication uplink signal. It can be understood that the second antenna array surface S2 includes N times the receiving channels for receiving the sensing echo signal and the communication uplink signal, where N ≥ 2.

[0202] Continue to see Figure 16 Taking the example of an integrated communication and perception device # including receiving channels for receiving sensing echo signals and communication uplink signals, assuming that the original integrated communication and perception device # has 32 receiving channels (receiving channels for receiving sensing echo signals and communication uplink signals), in order to expand the vertical scanning dimension or vertical scanning range of the second antenna array surface S2 during sensing, the number of receiving channels of the integrated communication and perception device # is increased to 64 (N=2). It should be understood that the above is merely an example and is not intended to be limiting in this application.

[0203] Alternatively, in one possible implementation, to ensure coverage of the sensor excitation signal and increase the scanning range of the echo signal, the first antenna array plane S1 may use fewer array elements in the vertical dimension. In this case, the first antenna array plane S1 can transmit a wider beam signal with higher transmission power, thereby ensuring coverage.

[0204] According to the above technical solution, FDD MIMO can support the sensing function, and further, can correctly use the FDD spectrum and support fast switching between the sensing mode and the communication mode.

[0205] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A communication and perception integrated device, characterized in that: include: Downlink frequency band filter, uplink frequency band filter, The downlink frequency band filter is used to output a perception excitation signal; The downlink frequency band filter is also used to output a communication downlink signal; The downlink frequency band filter is further configured to receive a perception echo signal after the perception excitation signal perceives a target, and send the perception echo signal to the first amplifier; The uplink frequency band filter is used to receive the communication uplink signal; The time domain resource through which the downlink frequency band filter outputs the downlink communication signal is different from the time domain resource through which the downlink frequency band filter outputs the perception excitation signal.

2. The device according to claim 1, characterized in that Also includes the first amplifier and the second amplifier, The second amplifier is used to output the perception excitation signal and the communication downlink signal to the downlink frequency band filter, and the time domain resource of the second amplifier outputting the perception excitation signal is different from the time domain resource of the second amplifier outputting the communication downlink signal; The first amplifier is configured to receive the sensed echo signal from the downlink frequency band filter; The first amplifier is further configured to receive the communication uplink signal from the uplink frequency band filter.

3. The device according to claim 1 or 2, characterized in that Also includes a first switch, The downlink frequency band filter is used to output the perception excitation signal through the first switch; The downlink frequency band filter is further configured to output the communication downlink signal through the first switch.

4. The device according to any one of claims 1 to 3, characterized in that Also comprising a second switch, The downlink frequency band filter is further configured to receive the perception echo signal through the second switch; The uplink frequency band filter is further configured to receive the communication uplink signal through the second switch.

5. The device according to any one of claims 1 to 4, characterized in that Also includes a first antenna array face and a second antenna array face, The first antenna array is used to receive and transmit the perception excitation signal from the downlink frequency band filter; The second antenna array is used to receive and transmit the communication downlink signal from the downlink frequency band filter; The second antenna array is further configured to receive and output the sensed echo signal to the uplink frequency band filter; The second antenna array is further configured to receive and output the communication uplink signal to the uplink frequency band filter.

6. The device according to claim 5, characterized in that The first antenna array surface and the second antenna array surface are isolated from each other.

7. The device according to any one of claims 1 to 6, characterized in that The perception echo signal and the communication uplink signal are sent on different frequency domain resources.

8. The device according to any one of claims 5 to 7, characterized in that The second antenna array surface includes a receiving channel for receiving the perception echo signal and the communication uplink signal.

9. The device according to any one of claims 2 to 7, characterized in that Also includes phase shifters, The phase shifter is used to receive the sensing echo signal and the communication uplink signal from the first amplifier. One or more sets, some of which have phase shifters.

10. The device according to any one of claims 2 to 9, characterized in that The first amplifier is a power amplifier PA, and the second amplifier is a low noise amplifier LNA.

11. A communication and perception integrated device, characterized in that: include: Downlink frequency band filter, uplink frequency band filter, The downlink frequency band filter is used to output a communication downlink signal; The uplink frequency band filter is used to output a perception excitation signal; The uplink frequency band filter is further configured to receive a perception echo signal after the perception excitation signal perceives a target, and send the perception echo signal to the first amplifier; The uplink frequency band filter is also used to receive communication uplink signals; The time domain resource for the uplink frequency band filter to receive the perception echo signal is different from the time domain resource for the uplink frequency band filter to receive the communication uplink signal.

12. The device according to claim 11, characterized in that Also includes the first amplifier and the second amplifier, The second amplifier is used to output the communication downlink signal to the downlink frequency band filter; The second amplifier is further configured to output the perception excitation signal to the uplink frequency band filter; The first amplifier is configured to receive the perception echo signal and the communication uplink signal from the uplink frequency band filter.

13. The device according to claim 11 or 12, characterized in that Also comprising a second switch, The uplink frequency band filter is further configured to receive the perception echo signal via the second switch; The uplink frequency band filter is further configured to receive the communication uplink signal through the second switch.

14. The device according to any one of claims 11 to 13, characterized in that Also includes a first antenna array face and a second antenna array face, The first antenna array is used to receive and transmit the perception excitation signal from the uplink frequency band filter; The second antenna array is used to receive and transmit communication downlink signals from the downlink frequency band filter; The second antenna array is further configured to receive and output the sensed echo signal to the uplink frequency band filter; The second antenna array is further configured to receive and output the communication uplink signal to the uplink frequency band filter.

15. The device according to claim 14, characterized in that The first antenna array surface and the second antenna array surface are isolated from each other.

16. The device according to any one of claims 11 to 15, characterized in that The perception excitation signal and the communication downlink signal are sent on different frequency domain resources.

17. The device according to any one of claims 14 to 16, characterized in that The second antenna array surface includes a receiving channel for receiving the perception echo signal and the communication uplink signal.

18. The apparatus according to any one of claims 12 to 17, characterized in that Also includes phase shifters, The phase shifter is configured to receive the perception echo signal and the communication uplink signal from the first amplifier.

19. The apparatus according to any one of claims 12 to 18, characterized in that The first amplifier is a power amplifier PA, and the second amplifier is a low noise amplifier LNA.

20. A communication system comprising N communication-sensing integrated devices according to any one of claims 1 to 10, wherein N≥1, and N is a positive integer.

21. The communication system according to claim 20, wherein: M of the N integrated communication and perception devices include phase shifters, where 1≤M≤N.

22. A communication system comprising N communication-awareness integrated devices according to any one of claims 11 to 19, wherein N≥1 and N is a positive integer.

23. The communication system according to claim 22, wherein: M of the N integrated communication and perception devices include phase shifters, where 1≤M≤N.

Images