Electronic device and method for wireless communication system, and storage medium

Abstract

The present disclosure relates to an electronic device and method for a wireless communication system, and a storage medium. Provided is an electronic device on the network device side comprising a processing circuit system. The processing circuit system is configured to: broadcast a first sensing signal, so that a terminal device obtains a sensing result of a target object on the basis of a first sensing signal received from an electronic device, a first sensing signal reflected from the target object, and the position of the electronic device; receive the sensing result from the terminal device; and when sending a second sensing signal to the terminal device, directionally send a second sensing signal to the target object by means of beamforming and on the basis of the sensing result, so that the terminal device re-obtains a sensing result of the target object on the basis of a second sensing signal received from the electronic device, a second sensing signal reflected from the target object, and the position of the electronic device. Therefore, an electronic device can directionally send a sensing signal on the basis of a preliminary sensing result of a target object obtained by a terminal device, thereby improving the sensing precision.

Description

Electronic device, method and storage medium for wireless communication system Technical Field

[0001] The present disclosure relates to the field of wireless communications, and more particularly, to a technology used in a synaesthesia integration system. Background Art

[0002] Synaesthesia technology is showing great potential in B5G and the future 6G, and is attracting increasing attention. This technology can integrate additional sensing capabilities into existing communication systems within the same frequency band and hardware platform, enabling the communication system to "see" surrounding objects. However, due to the limitations of current wireless technology's sensing capabilities, a single station (e.g., a single base station) or a single terminal (e.g., a single terminal device such as a user equipment) cannot meet the higher-precision user perception requirements.

[0003] Existing integrated synaesthesia systems primarily focus on integrating both communication and perception functions within a single station. However, due to the limited resources and coverage of a single station, they struggle to meet user perception service requirements. To address the single-station perception issue, the concept of a collaborative synaesthesia integrated system has been proposed, attempting to meet user perception needs such as higher accuracy and a wider range. Collaborative synaesthesia integrated systems can be categorized as station-station, station-end, and end-end, depending on the collaborative object. However, due to the limitations of current wireless technology, station-station and end-end collaboration, as A2A models, rely heavily on full-duplex technology, resulting in limited perception accuracy for A2A collaborative synaesthesia integrated systems. While existing station-end collaboration, as A2B models, offers advantages such as high communication reliability, wide coverage, low hardware requirements, and independence from full-duplex technology, these station-end collaborations typically involve complex processing and computation, resulting in extensive signaling interactions and significant resource overhead.

[0004] Therefore, it is hoped to provide a new collaborative approach that can avoid the use of full-duplex technology and improve perception accuracy in a less complex manner. Summary of the Invention

[0005] One aspect of the present disclosure relates to an electronic device for use on a network device side of a wireless communication system. According to one embodiment, the electronic device may include a processing circuit system, which may be configured to: broadcast a first perception signal so that a terminal device obtains a perception result of a target object based on the first perception signal received from the electronic device, the first perception signal reflected from the target object, and the position of the electronic device; receive the perception result from the terminal device; and when sending a second perception signal to the terminal device, send the second perception signal toward the target object through beamforming based on the received perception result, so that the terminal device re-obtains the perception result of the target object based on the second perception signal received from the electronic device, the second perception signal reflected from the target object, and the position of the electronic device.

[0006] Another aspect of the present disclosure relates to an electronic device for a user equipment (UE) in a wireless communication system. According to one embodiment, the electronic device may include a processing circuit system configured to: obtain a perception result of a target object based on a first perception signal received from a base station, a first perception signal broadcast from the base station and reflected from the target object, and the location of the base station; transmit the perception result to the base station so that the base station transmits a second perception signal directionally toward the target object through beamforming based on the perception result; and re-obtain the perception result of the target object based on a second perception signal received from the base station, the second perception signal reflected from the target object, and the location of the base station.

[0007] Another aspect of the present disclosure relates to a method for use in a wireless communication system. According to one embodiment, the method may include: broadcasting a first perception signal so that a terminal device obtains a perception result of a target object based on the first perception signal received from a base station, the first perception signal reflected from the target object, and the location of the base station; receiving the perception result from the terminal device; and, when transmitting a second perception signal to the terminal device, directionally transmitting the second perception signal toward the target object using beamforming based on the received perception result, so that the terminal device re-obtains the perception result of the target object based on the second perception signal received from the base station, the second perception signal reflected from the target object, and the location of the base station.

[0008] Yet another aspect of the present disclosure relates to a method for use in a wireless communication system. In one embodiment, the method may include: obtaining a perception result of a target object based on a first perception signal received from a base station, a first perception signal broadcast from the base station and reflected from the target object, and the location of the base station; transmitting the perception result to the base station so that the base station transmits a second perception signal directionally toward the target object using beamforming based on the perception result; and re-obtaining the perception result of the target object based on a second perception signal received from the base station, the second perception signal reflected from the target object, and the location of the base station.

[0009] Yet another aspect of the present disclosure relates to a computer-readable storage medium storing one or more instructions. In some embodiments, the one or more instructions, when executed by one or more processors of an electronic device, may cause the electronic device to perform the above method.

[0010] The above summary is provided to summarize some exemplary embodiments in order to provide a basic understanding of various aspects of the subject matter described herein. Therefore, the above features are merely examples and should not be construed as narrowing the scope or spirit of the subject matter described herein in any way. Other features, aspects, and advantages of the subject matter described herein will become apparent from the detailed description described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] A better understanding of the present disclosure may be obtained when the following detailed description of the embodiments is considered in conjunction with the accompanying drawings. The same or similar reference numerals are used in the various drawings to represent the same or similar components. The accompanying drawings, together with the following detailed description, are incorporated into and form a part of this specification and are used to illustrate the embodiments of the present disclosure and to explain the principles and advantages of the present disclosure. In particular:

[0012] FIG1 is a schematic diagram of a scenario example of a synaesthesia integration system according to an embodiment of the present disclosure;

[0013] FIG2 is a flow chart of a method for sensing a target object according to an embodiment of the present disclosure;

[0014] FIG3 is another flow chart of a method for sensing a target object according to an embodiment of the present disclosure;

[0015] FIG4 is an example of an interaction process between a base station, a terminal device and / or a cooperative base station in the process of sensing a target object according to an embodiment of the present disclosure;

[0016] 5 is a block diagram of an example structure of a personal computer as an information processing device that can be employed in an embodiment of the present disclosure;

[0017] FIG6 is a block diagram illustrating a first example of a schematic configuration of a gNB to which the technology of the present disclosure may be applied;

[0018] FIG7 is a block diagram illustrating a second example of a schematic configuration of a gNB to which the technology of the present disclosure may be applied;

[0019] FIG8 is a block diagram illustrating an example of a schematic configuration of a smartphone to which the technology of the present disclosure can be applied; and

[0020] FIG. 9 is a block diagram showing an example of a schematic configuration of a car navigation device to which the technology of the present disclosure can be applied.

[0021] While the embodiments described in this disclosure may be susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and are herein described in detail. However, it should be understood that the drawings and detailed description thereof are not intended to limit the embodiments to the particular forms disclosed, but on the contrary, the intent is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the claims. DETAILED DESCRIPTION

[0022] The following describes representative applications of various aspects of the apparatus and method of the present disclosure. The description of these examples is only to add context and help understand the described embodiments. Therefore, it is clear to those skilled in the art that the embodiments described below can be implemented without some or all of the specific details. In other cases, well-known process steps are not described in detail to avoid unnecessarily obscuring the described embodiments. Other applications are also possible, and the solutions of the present disclosure are not limited to these examples.

[0023] First, referring to FIG1 , a schematic diagram of a scenario example of a synaesthesia integration system according to an embodiment of the present disclosure is described.

[0024] The synaesthesia integration system 100 involved in the embodiment of the present disclosure perceives the target object through the collaborative operation of the base station and the terminal device. The system 100 may include one or more terminal devices, one or more base stations and one or more targets. For the sake of simplicity of description, only the terminal device 110, the base station 120, the base station 130 and the target object 140 and the signal transmission relationship between them are shown in Figure 1. Those skilled in the art can easily understand that when there are more terminal devices, more base stations, and more targets, similar signal transmission relationships may exist based on the coverage range of the base station and the distance between the base station, the target object and the terminal device. For example, when the target object is within the coverage range of the base station, the base station can send a signal to the target object; when the distance between the terminal device and the target object is short so that the terminal device can detect the signal from the target object, the terminal device can receive the signal reflected from the target object; after the terminal device chooses to establish a connection with a base station, although the terminal device may still be within the coverage range of another base station, the terminal device only communicates with the base station to which it is connected; the base station can conduct wired or wireless communication with other base stations within its coverage range, and can also conduct wired communication with other base stations outside its coverage range or wireless communication via other network entities.

[0025] The terminal device may correspond to an electronic device on the user equipment side, such as a processor, integrated circuit, etc. in the user equipment. The terminal device 110 may be a user equipment (UE) such as a smartphone, a mobile device equipped with a wireless communication device such as a car or drone, or an information processing device capable of wireless communication such as a roadside unit. The terminal device 110 may connect to a nearby base station using existing random access technologies. When the connected base station cannot meet the service needs of the terminal device 110, the terminal device 110 may select another nearby base station for connection.

[0026] Base stations, including the primary base station, cooperative base station, and candidate base station mentioned below, can correspond to electronic devices on the network device side, such as processors, integrated circuits, etc. in the network device. Base stations 120 and 130 can be various base stations such as NodeBs, gNBs, eNodeBs, and HeNBs, or other access devices that provide wireless access services to user equipment. In the scenario of Figure 1, base station 120 is connected to terminal device 110, enabling bidirectional communication with terminal device 110. Furthermore, base station 120 can transmit sensing signals to terminal device 110 and broadcast or, under certain conditions, send signals to target object 140. Regarding base station 130, regardless of whether terminal device 110 is within the coverage area of ​​base station 130, a terminal device 110 connected to base station 120 can disconnect from base station 130 or receive signals from base station 130. Base station 130 can communicate with base station 120 and broadcast or, under certain conditions, send signals to target object 140.

[0027] The target object 140 is an object that the terminal device 110 needs to perceive, and it does not need to communicate with the devices in the system 100. The target object 140 can be a fixed object such as an obstacle, a tree, or a house, or a mobile object such as a car or a human body. The terminal device 110 can perceive the shape, volume, position, moving speed, moving direction, etc. of the target object 140 through the reflection signal of the perception signal sent to the target object 140 by the base station 120 and / or the reflection signal of the perception signal sent to the target object 140 by the base station 130. The perception result of the target object 140 may affect the operation of the terminal device 110, or may enable the terminal device 110 to have a more comprehensive understanding of the surrounding environment, and may also help the base station know the situation within its coverage area.

[0028] In the synaesthesia integration system 100, the base station 120 connected to the terminal device 110 initially does not know the location of the target object 140. However, it can roughly determine the location of the target object 140 based on the information fed back by the terminal device 110, and thus send a signal directionally toward the target object 140. This signal is reflected (or scattered) by the target object 140, and at least a portion of the reflected signal is transmitted toward the terminal device 110 and received by the terminal device 110. Simultaneously with the signal sent by the base station 120 to the target object 140, the base station 120 sends the same signal to the terminal device 110. In this way, the terminal device 110 can obtain a perception result of the target object 140 based on the signal received from the base station 120, the signal reflected from the target object 140, and the location of the base station 120 itself. For example, the terminal device 110 can use existing positioning technologies such as triangulation to calculate the target object's position, movement speed, and movement direction. For example, terminal device 110 can determine the location of target object 140 based on the arrival angle of the first signal transmitted through the direct channel between terminal device 110 and base station 120, the arrival angle of the second signal reflected from target object 140, and the arrival time difference between the two signals, in combination with the location of base station 120, thereby obtaining the distance between terminal device 110 and target object 140. Here, the first signal and the second signal can be the same signal sent simultaneously by base station 120 in different directions.

[0029] To further enhance the perception effect, the base station 120 can also collaborate with the base station 130 to jointly assist the terminal device 110 in perceiving the target object 140. Although only one base station for collaboration is shown in FIG1 , multiple base stations may collaborate with the base station 120. When multiple base stations collaborate with each other, the base station 120 connected to the terminal device 110 is the master base station, and the base station 130 collaborating with the base station 120 is the collaborative base station (also referred to as a "slave base station"). Under the control of the base station 120, the base station 130 can determine the direction or position of the target object 140 based on the information informed by the master base station 120, so that it can send a signal in a direction toward the target object 140. Simultaneously, the master base station 120 sends the same signal to the target object 140. In this way, multiple identical signals can be sent to the target object 140 at the same time, and then reflected by the target object 140 toward the direction of the terminal device 110. These reflected signals are combined into a synthetic reflected signal, so that the terminal device 110 can receive a reflected signal with stronger signal energy and a higher signal-to-noise ratio (SNR) (or, signal-to-interference-plus-noise ratio (SINR)). In synchronization with the signal transmitted by base station 120, base station 120 also transmits the same signal to terminal device 110. In this way, terminal device 110 can further obtain a more accurate perception result of target object 140 based on the signal received from base station 120, the synthesized reflected signal reflected from target object 140, and the position of base station 120 itself.

[0030] In the absence of base station 130, since base station 120 can transmit a signal in a direction toward target object 140 after knowing the approximate location of target object 140, terminal device 110 can obtain a reflected signal with a higher signal-to-noise ratio compared to a case where there is no directional transmission directed at target object 140, thereby helping terminal device 110 to more accurately obtain a perception result of target object 140, thereby improving perception accuracy. In the case of base station 130, since base station 130 can further transmit a signal in a direction toward target object 140 based on the direction or location of target object 140, compared to a case where only base station 120 transmits a signal in a direction, the signal-to-noise ratio of the reflected signal obtained by terminal device 110 can be further improved, thereby allowing terminal device 110 to further accurately obtain a perception result of target object 140 based on the reflected signal with a further improved signal-to-noise ratio, thereby further improving perception accuracy.

[0031] The following describes in detail the processing and operations of the base station, terminal device, and cooperative base station in the process of cooperatively sensing the target object in combination with the flowchart and the interaction process.

[0032] Figure 2 is a flow chart of a method 200 for sensing a target object according to an embodiment of the present disclosure. Method 200 can be executed by a base station 120 to which a terminal device 110 is connected, and more specifically, can be executed by a processing circuit system of an electronic device in base station 120. Directional transmission from base station 120 to target object 140 enhances the signal-to-noise ratio of the reflected sensing signal, thereby making the sensing result obtained by terminal device 110 more accurate, thereby improving sensing accuracy. It should be noted that the execution of method 200 also involves operations performed by the terminal device, and these operations can be performed by a processing circuit system of an electronic device on the user equipment side.

[0033] In S210 , the base station broadcasts a first perception signal, so that the terminal device obtains a perception result of the target object according to the first perception signal received from the base station, the first perception signal reflected from the target object, and the position of the base station.

[0034] According to an embodiment of the present disclosure, the base station may, for example, broadcast the first perception signal periodically, or may broadcast the first perception signal when initial perception of the target object is required after determining the optimal transmit / receive beam pair with the terminal device. The base station may carry its location information in the broadcast signal so that the terminal device receiving the broadcast signal can determine the location of the base station. Alternatively, the base station may also broadcast its location information separately, or send its location information to the terminal device after establishing a connection with the terminal device. The broadcast first perception signal may be any signal, such as a channel state information reference signal (CSI-RS). In one example, in order to obtain preliminary perception results of the target object as early as possible and thereby improve perception efficiency, the broadcast first perception signal may be a signal used in the initial access process, such as a synchronization signal block (SSB).

[0035] During the broadcast of the first perception signal, the terminal device may receive the first perception signal broadcast by the base station and, at a later time, may also receive a signal from another direction. This signal from another direction is the signal reflected from the target object after the broadcast first perception signal reaches the target object. In other embodiments, the terminal device may receive the first perception signal specifically sent to it by the base station and ignore the broadcast first perception signal.

[0036] By using existing sensing technologies such as positioning technology, the terminal device can obtain the sensing result of the target object, such as the position of the target object, based on the first sensing signal received from the base station (which can be the first sensing signal broadcast by the base station or the first sensing signal sent specifically by the base station to the terminal device), the first sensing signal reflected from the target object, and the position of the base station. In one example, the terminal device can roughly estimate the position of the target object through geometric relationships based on the angle information of the first sensing signal received from the base station, the reception angle information of the first sensing signal from another direction, and the position information of the base station, thereby preliminarily obtaining the sensing result of the target object. Of course, those skilled in the art will understand that the terminal device can also use other existing sensing technologies or algorithms to obtain the moving speed, moving direction, outline, size, etc. of the target object based on the first sensing signal received from the base station, the first sensing signal reflected from the target object, and the position of the base station.

[0037] In S220 , the base station receives a sensing result from the terminal device.

[0038] According to an embodiment of the present disclosure, after a terminal device obtains a perception result of a target object, it transmits the perception result to a base station. This allows the base station to understand the general situation of the target object, such as its location, and can then more specifically help generate a more accurate reflection signal with a higher signal-to-noise ratio, thereby facilitating the terminal device's perception of the target object.

[0039] In S230, when the base station sends the second perception signal to the terminal device, the base station sends the second perception signal in a directionally directed manner toward the target object through beamforming according to the received perception result, so that the terminal device can regain the perception result of the target object based on the second perception signal received from the base station, the second perception signal reflected from the target object, and the position of the base station.

[0040] According to an embodiment of the present disclosure, in order to perform target perception, the base station may simultaneously send perception signals to the terminal device and the target, such as a first perception signal and a second perception signal. Like the first perception signal, the second perception signal may be any signal. The first perception signal and the second perception signal may be signals of the same type, such as CSI-RS, or signals of different types. Since the base station has completed the connection with the terminal device, the base station may send the second perception signal to the terminal device through a direct channel (such as a LOS channel) between the base station and the terminal device. In addition, since the base station has roughly known the position of the target in S220, the base station may send a perception signal to the target through beamforming. Directed transmission through beamforming can increase the energy of the signal sent in a specific direction, so that the energy reaching the target and reflected from the target is higher, thereby increasing the signal-to-noise ratio of the reflected signal, and thus increasing the accuracy of the perception result obtained by processing the perception signal and its reflected signal.

[0041] After receiving the second sensing signal from both the direct channel and the reflected channel between the target object and the terminal device, the terminal device can utilize the existing sensing algorithm based on the second sensing signal and the base station's location to obtain a new sensing result for the target object. Because the signal-to-noise ratio of the reflected signal of the second sensing signal is improved through directional transmission, the perception accuracy of the sensing result is also improved.

[0042] In some embodiments of the present disclosure, one or more of the first and second sensing signals may be a channel state information reference signal (CSI-RS), and the sensing result received in S220 may be received via channel state information (CSI). Since CSI-RS and CSI are continuously transmitted in existing communication systems to detect channel communication quality, multiplexing CSI-RS and CSI for target sensing increases the utilization efficiency of CSI-RS and CSI, reduces system signaling overhead, and reduces system complexity.

[0043] By executing the above method, the base station can use the rough perception results of the target reported by the terminal device to determine the target's location, and then can more accurately send the perception signal in the direction of the target. This enables the terminal device to receive a more accurate reflected perception signal with a higher signal-to-noise ratio, and thus can use the higher signal-to-noise ratio signal to perceive the target, resulting in more accurate perception results and improved perception accuracy.

[0044] Figure 3 illustrates a flow chart of a method 300 for sensing a target object according to an embodiment of the present disclosure. Method 300 may be executed by base station 120 to further improve sensing accuracy through collaboration between base station 120 and one or more base stations 130. Furthermore, in some embodiments, method 300 may also include a terminal device transmitting a sensing request to help base station 120 determine whether it is necessary to collaborate with terminal device 110 to sense the target object, and to help base station 120 determine whether it is necessary to further collaborate with other base stations 130 to sense the target object.

[0045] In S302, the base station receives a sensing requirement from the terminal device.

[0046] For example, the perception requirements may include the terminal device's requirements for perception accuracy, perception resolution, response time, perception range, etc., to indicate the quality requirements for the perception results. Before the base station receives the perception requirements, the base station needs to first perform a connection with the terminal device. This can be done through the existing random access process. Through the transmission of the perception requirements, the base station can determine whether it can complete the target object perception for the terminal device as a single station, or whether it needs to collaborate with the terminal device to jointly complete the target object perception. Of course, those skilled in the art will understand that the perception requirements can be predetermined, or pre-configured into the base station by a technician, or sent to the base station by other devices (such as core network devices), and the present disclosure does not limit this, which means that S302 does not necessarily need to be executed.

[0047] In S304, the base station determines whether it needs to cooperate with the terminal device to perform target object perception based on the perception requirement.

[0048] For example, if the base station has additional channel resources and processing resources to provide target object perception services for the terminal device, and the historical perception performance of the base station is not lower than the perception requirement, the base station can determine to perform single-station perception in S305. At this time, the base station can perceive the target object through the existing single-station operation. If the historical perception performance of the base station is lower than the perception requirement, for example, the base station determines that its perception accuracy or perception range is insufficient, the base station can determine that it needs to cooperate with the terminal device to perceive the target object. Alternatively, when the base station cannot perceive the target object by a single station, or when the perception requirement is too high compared to the historical perception performance, the base station can also notify the terminal device to disconnect from it and select a new base station to provide perception services.

[0049] In S306 , when the base station determines that it needs to cooperate with the terminal device to sense the target object, the base station sends the location information of the base station to the terminal device.

[0050] The base station may also transmit location information to the terminal device in other steps. For example, the base station may periodically broadcast its location information, or may transmit location information to the terminal device immediately after establishing a connection with the terminal device, or may transmit location information in response to a request from the terminal device for base station location information.

[0051] In S310, the base station broadcasts a first sensing signal so that the terminal device can obtain a sensing result of the target object based on the first sensing signal received from the base station, the first sensing signal reflected from the target object, and the location of the base station. This step is similar to S210.

[0052] In S320, the base station receives the sensing result from the terminal device. This step is similar to S220.

[0053] In S330, when transmitting the second perception signal to the terminal device, the base station transmits the second perception signal directionally toward the target object using beamforming based on the received perception result, so that the terminal device can regain the perception result of the target object based on the second perception signal received from the base station, the second perception signal reflected from the target object, and the position of the base station. This step is similar to S230.

[0054] In S340 , the base station receives the re-acquired sensing result from the terminal device.

[0055] For example, after the terminal device obtains the new perception result, the terminal device can send the new perception result to the base station through, for example, CSI, so that the base station can determine whether the perception result meets the perception requirement in S302. In addition, the base station can obtain more accurate surrounding environment information based on the new perception result.

[0056] In S345 , the base station determines whether it needs to cooperate with other base stations to perform target object perception based on the re-acquired perception result.

[0057] For example, if the base station determines that the perception accuracy and resolution reflected in the perception result are not lower than the perception requirement, then the base station determines that it does not need to cooperate with other base stations to perceive the target object, and then continues to perceive the target object with the terminal device in S347. Conversely, if the base station determines that the current perception result does not meet the perception requirement, it determines that other base stations in the network need to participate in collaboration to enhance perception. The participating base stations can be base stations within the base station's coverage area or base stations outside the base station's coverage area but can communicate with the base station.

[0058] In S350 , when it is determined that it is necessary to cooperate with other base stations to perform target object perception, the base station determines a cooperative base station that can cooperate to perform target object perception by sending a cooperation request to a candidate base station.

[0059] For example, the base station may select the base station whose coverage includes the target object as a candidate base station and send a collaboration request to the candidate base station. In one example, the base station knows the location of other nearby base stations (for example, through pre-configured information), and knows the location of the terminal device (for example, the terminal device actively reports its location, or obtains it through sensing technology or communication with the terminal device) and the location of the target object (for example, obtained through S340). Taking into account that the coverage range of each base station is roughly a predetermined value (for example, 1 km, etc.), the base station can determine the candidate base station covering the target object and send a collaboration request to it.

[0060] Next, the base station can receive a collaborative response sent by the candidate base station in response to the collaborative request. The collaborative response can indicate the perception capability of the candidate base station, so that the base station can select a base station with stronger perception capability from the candidate base stations as a collaborative base station.

[0061] In some embodiments of the present disclosure, the base station 120 connected to the terminal device 110 may determine the number of cooperative base stations 130 based on its resource margin. For example, if base station 120 still has a certain percentage (e.g., 10%, 20%, 30%, etc.) of its channel resources and processing resources idle while providing existing data transmission services and sensing services, the base station may determine to select one, two, three, or other base stations as cooperative base stations. Base station 120 then sends a cooperation request to the candidate base station and receives a response from the candidate base station indicating the candidate base station's sensing capability. Sensing capability represents the ability of the cooperative base station to assist in sensing the target object. For example, base station 120 may determine that base stations closer to the target object have stronger sensing capabilities, base stations with more idle time-frequency resources have stronger sensing capabilities, base stations with more idle spatial resources have stronger sensing capabilities, and so on. In some embodiments, base station 120 may determine the sensing capability of a candidate base station based on the number of sensing antennas of the candidate base station and the distance of the candidate base station from the target object. For example, sensing capability may be the ratio of the number of sensing antennas of the candidate base station to the distance of the candidate base station from the target object. When selecting a base station as a collaborative base station, the base station 120 can select the base station 130 with the strongest perception capability as the collaborative base station; when selecting two base stations as collaborative base stations, the base station 120 can select the base stations 130 ranked in the top two in perception capability as the collaborative base stations; when selecting three base stations as collaborative base stations, the base station 120 can select the base stations 130 ranked in the top three in perception capability as the collaborative base stations; and so on.

[0062] The above-mentioned method of determining the number of cooperative base stations and selecting cooperative base stations is merely an example of the embodiment of the present disclosure. Those skilled in the art can flexibly design the number of cooperative base stations to be selected and how to select them according to actual needs.

[0063] In S355 , the base station performs clock synchronization with the determined cooperative base station, so that the base station as the master base station can control the cooperative base station as the slave base station to perform synchronous signal transmission.

[0064] For example, clock synchronization can include at least one of frequency synchronization and phase synchronization. To accommodate the needs of various application scenarios, base station 120 can support both frequency and phase synchronization. With phase synchronization, the clock of base station 120, acting as a master base station, and the clocks of one or more base stations 130, acting as slave base stations or collaborative base stations, remain consistent at all times. With frequency synchronization, the clocks of base stations 120 and 130 differ, but maintain a constant time difference.

[0065] In an embodiment of the present disclosure, the base station can support at least one of global navigation satellite system (GNSS) clock synchronization, master-slave clock transmission (e.g., synchronous Ethernet) and packet synchronization (e.g., 1588V2 clock), thereby realizing different networking modes. In the case of networking through GNSS clock synchronization, there are two mechanisms on the base station side to achieve synchronization: first, both the master base station and the cooperative base station receive GNSS synchronization signals through GNSS antennas, and each base station is configured in frequency synchronization mode; second, the master base station receives GNSS synchronization signals through a clock module (e.g., packet received data transmission protocol (RGPS) antenna, transmission equipment, etc.), and then transmits the parsed frequency synchronization signal (e.g., 1PPS+TOD signal, synchronous Ethernet, etc.) to the cooperative base station through a cable. In the case of networking through master-slave clocks, the clock source of the master base station is a reference reference clock (PRC) device, and the master base station transmits the clock synchronization signal (e.g., synchronous Ethernet signal) to the next level device such as the cooperative base station step by step through the physical layer interface. In the case of packet synchronization, the master base station synchronizes to a PRC clock source, carries the synchronization signal in a message, and then transmits the message to the cooperating base station via the packet switching network. The cooperating base station recovers the frequency information from the synchronization message, thereby achieving frequency synchronization with the master device. Although base stations currently only support 1588v2 clock synchronization, this disclosure also includes future support for clock synchronization.

[0066] After synchronization between the primary base station and one or more cooperative base stations is complete, at least one of the following two methods may be used to enable the one or more cooperative base stations to synchronously send sensing signals to the target object. That is, after S355, each time the cooperative base stations need to collaborate to sense the target object, method 300 may proceed to S360 or S380.

[0067] Below, method 1 is first described, which includes steps S360 to S375.

[0068] In S360 , the base station (ie, the master base station) sends information related to the third perception signal to the coordinated base station (ie, the slave base station), so that the coordinated base station can send the third perception signal.

[0069] For example, the master base station 120 transmits the third perception signal itself, or configuration information such as configuration parameters used to generate the third perception signal, to the slave base station 130. The third perception signal here can be any signal, for example, the same CSI-RS as in S230. The transmission process here can be via wired transmission or wireless transmission.

[0070] In S365 , the base station obtains the location of the cooperative base station.

[0071] For example, the main base station 120 may request the cooperative base station 130 for location information of the cooperative base station. In response to the request, the cooperative base station 130 may provide feedback of its location information to the main base station 120. For another example, the locations of base stations near the base station 120 may be pre-configured in the base station 120, allowing the base station 120 to query the location of the cooperative base station based on the determined relevant information of the cooperative base station. Alternatively, the information of the cooperative base station 130 may be stored in a server, allowing the base station 120 to obtain its location by requesting the server for the information of the cooperative base station.

[0072] Although S365 is shown here to be executed after S360, S365 may also be executed at other timings as long as S365 is executed after the master base station determines the cooperative base station and before the location where the cooperative base station needs to be used.

[0073] In S370, a joint beamforming matrix is ​​generated according to the target object position based on the sensing result and the acquired position of the cooperative base station.

[0074] For example, the base station 120 can generate a joint beamforming matrix based on the position of the target object and the position of the collaborative base station. The joint beamforming matrix can include beamforming matrices or vectors of at least two base stations (for example, at least two collaborative base stations, or a main base station and at least one collaborative base station, etc.). Each element in the joint beamforming matrix corresponds to the beamforming matrix of the corresponding base station, which is used to instruct the corresponding base station to send a perception signal in the direction of the target object. It should be noted that the beamforming matrix of the base station may also be referred to as the beamforming vector of the base station in this article, and its expression form is not particularly limited, as long as the direction, amplitude and phase of the transmitting antenna can be controlled by a data set containing multiple data.

[0075] The generated joint beamforming matrix can at least be used to instruct one or more slave base stations 130 how to perform beamforming to achieve directional transmission toward target 140. In one example, in addition to instructing one or more slave base stations 130 how to perform beamforming, the generated joint beamforming matrix can also instruct base station 120 itself how to perform beamforming. Of course, those skilled in the art will appreciate that the beamforming of base station 120 itself can also be determined by base station 120 based on the location of the target.

[0076] The base station 120 can generate a joint beamforming matrix in the following manner. The joint beamforming matrix generated in this manner can indicate the beamforming operations of the master base station and one or more slave base stations. Of course, since the beamforming operation of the master base station can be determined separately according to the position of the target object, the following manner can also be used to indicate only the beamforming operations of one or more slave base stations. A joint beamforming matrix containing beamforming vectors of the master base station and each collaborative base station can be obtained based on the position information of the target object, the position information of the master base station, the position information of the collaborative base station, the channel condition from the target object to the terminal device, and the channel condition from the master base station to the collaborative base station. The collaborative beamforming scheme design is described below to generate the joint beamforming matrix in S370.

[0077] Assume that there are M gNBs including the master base station and the cooperative base station, numbered as m∈{1,…,M}, where each base station is equipped with Nt transmit antennas and Nr receive antennas, and there are U terminal devices UE equipped with a single antenna. The data stream sent by each base station includes V communication data streams {x u [l],u∈V} and Q perceptual data streams {x q [l],q∈Ω}, where Ω={V+1,…,V+Q}, l represents the communication or perception data stream of the lth symbol, and the total data stream s is represented by {x s [l],s∈S}, where S=V∪Ω={1,2,...,S}, S=V+Q.

[0078] The transmission signal expression of the lth symbol of base station m is:

[0079] Among them, f mu Base station m sends communication data stream x to UE u u (l) The beamforming vector, f mq Base station m sends sensing data stream x to UE u q (l) The beamforming vector, f ms Base station m sends all data streams x to UE u s (l) is the beamforming vector.

[0080] For the beamforming vector f of base station m ms The power P of base station m needs to be satisfied m Constraints: E[||x m (l)|| 2 ]=∑ s∈S ||f ms || 2 ≤P m

[0081] Define the joint beamforming matrix in represents the beamforming vector f when base station m sends all data streams s ms The transpose of .

[0082] As a conventional representation of a communication channel, when a communication channel exists between a base station m and a UE u (although in the embodiment of the present disclosure, a communication channel exists only between the primary base station and the UE), the communication channel from the base station m to the UE u is represented as h mu , the communication signal received by UE u on the lth symbol is (wherein the signal related to the communication is indicated by (c)):

[0083] Where U is the set of terminal devices, u′ is the other UEs except UE u, and f mu′ Base station m sends communication data stream x to UE u′ u′ (l) beamforming vector, and n u (l) represents the noise at UE u of the lth symbol, which has a mean of 0 and a variance of Gaussian distribution, that is It should be noted that since UE u′ represents a UE different from UE u, and since multi-user interference may be generated by other UEs, the current UE itself needs to be excluded when calculating the multi-user interference.

[0084] Therefore, the communication SINR at UE u can be expressed as:

[0085] in, is the conjugate transpose of the matrix of the communication channel from all base stations to UE u, f u is the beamforming matrix of all base stations for UE u, f u′ is the beamforming matrix of all base stations for UE u′, f qis the perceptual beamforming matrix of all base stations for UE u. It should be noted that although the noise in the signal-to-noise ratio (SNR) may not include interference between multiple users and only refers to channel noise, in this article, all parts that are not part of the desired signal can be considered as noise, regardless of whether they are generated by the channel or interference from other communications. Therefore, those skilled in the art will understand that SNR and SINR can be used interchangeably in this article.

[0086] The sensing channel from base station m to the perceived target (also called the target object) to UE u is expressed as: g mu =ω mu a(θ u )a H (θ m )

[0087] The channel coefficient β mu is the path loss, σ is the radar cross-section RCS of the perceived target, a(θ u ) is the UE u-side receiving array response vector, a H (θ m ) is the conjugate transpose of the antenna array response vector at the base station m side, and the departure angle at the base station m side and the arrival angle at the UE u side are θ m and θ u Assume that the RCS modeling of the perception channel is based on the Swerling I model, which is a commonly used RCS model in radar systems. Commonly used RCS models in radar systems are mainly divided into four types: Swerling I, Swerling II, Swerling III, and Swerling IV. Typically, the scanning process of the sensing receiver when sensing a target is periodic. If multiple echoes within the same scanning cycle are correlated, while multiple echoes between different scanning cycles are uncorrelated, it indicates that the fluctuation characteristics of the perceived target vary slowly, known as slow fluctuation, and the perception channel can be described by the Swerling I and Swerling III models. If multiple echoes within the same scanning cycle are uncorrelated, it indicates that the fluctuation characteristics of the perceived target vary rapidly, known as fast fluctuation, and the perception channel can be described by the Swerling II and Swerling IV models. Different Swerling models have different probability distribution characteristics. Swerling I and Swerling II models model RCS as a Rayleigh distribution, while Swerling III and Swerling IV models model RCS as a chi-square distribution.

[0088] The perception signal received by UE u at symbol l can be expressed as (wherein the signal related to perception is indicated by (s)):

[0089] The noise That is, it obeys the mean of 0 and the variance of Gaussian distribution.

[0090] make

[0091] but

[0092] in, represents the conjugate matrix of the beamforming matrix for base station m, which is composed of the set of each independent beamforming vector. Each beamforming vector f ms represents the beamforming vector of the base station m sending the communication or sensing signal s, where s comes from the above S which is the union of the communication signal V and the sensing signal Q, that is, from the set of all sensing and communication signals. Represents the conjugate matrix of the matrix composed of the signal sent by base station m, where each x s is the transmitted signal, which may be a communication signal (when s∈V) or a perception signal (when s∈Q). There are L transmitted symbols. Since the radar and communication signals are statistically independent, then x s It can be expressed as x s =[x s [1],…,x s [L]] T .

[0093] The perception signal of UE u can be reformulated as: N u =[n u [1],…,n u [L]]

[0094] The perceived SINR is:

[0095] Let the ratio of power allocated by base station m for communication be ρ, then Then, the power allocated by base station m for sensing is

[0096] Next, joint communication and perception beam optimization is performed. Specifically, the perception SINR can be optimized based on the minimum communication SINR constraint problem.

[0097] in, It is an optimization problem, which means finding the SINR (s) The maximum beamforming matrix f ms; and the two expressions following st are constraints, and γ is a fixed value that can be selected according to actual needs.

[0098] In order to solve the above optimization problem, it can be transformed into a semi-definite programming convex optimization problem. Define the beamforming optimization variable as a matrix:

[0099] where f s is the joint beamforming matrix when all base stations transmit signal s, which can include the beamforming components of sensing and communication. Each element of this matrix corresponds to the beamforming vector of the corresponding base station. s , the following constraints can be made: (Indicates F s belongs to the Hermitian positive semidefinite matrix)

[0100] And the rank of the matrix satisfies the constraint: rank(F s )=1

[0101] Define the selection matrix:

[0102] Among them, diag() means d m Construct a diagonal matrix for the diagonal; represents the Krone product; the indicator vector d of base station m m =[d m1 ,...,d mM ], and d mm =1,d mm′ =0, any And m≠m′.

[0103] Another definition

[0104] Where, as mentioned above, a(θ m ) T Represents the conjugate transpose of the antenna array response vector at side m of the base station.

[0105] Then, SINR can be rewritten (s) for:

[0106] Wherein, Tr() is a function for finding the trace of a matrix known in the art.

[0107] Another definition

[0108] Where, as mentioned above, h u is the matrix of communication channels from all base stations to UE u; f uis the beamforming matrix of all base stations for UE u, which is composed of the beamforming vector of each base station for UE u; f u′ is the beamforming matrix of all base stations for UE u′, which is composed of the beamforming vector of each base station for UE u′; f q is the sensing beamforming matrix of all base stations for UE u.

[0109] Then, you can rewrite for:

[0110] Therefore, the above optimization problem and its constraints

[0111] The constraints can be rewritten as:

[0112] Then the optimization problem and its constraints can be written as:

[0113] in, is the optimization goal, which means finding the SINR (s) The largest F s ; and the four expressions following st are constraints.

[0114] This optimization problem can be solved by optimizing the semi-positive programming problem to obtain the optimal solution, denoted as F′ s , we can get F′ s The eigenvector f s , and rank(F′ s )=1. As mentioned above, f s is the joint beamforming matrix when all base stations send signal s, and each element of this matrix corresponds to the beamforming vector of the corresponding base station. By solving the above optimization problem, the joint beamforming matrix f can be obtained s .

[0115] After the design of the joint beamforming matrix is ​​completed, enter S375.

[0116] In S375, the base station sends the beamforming matrix to the cooperative base station, so that the cooperative base station synchronously sends the third perception signal directionally toward the target object through beamforming according to the beamforming matrix.

[0117] For example, after receiving the beamforming matrix, one or more slave base stations 130 can adjust the transmit phase and amplitude of their antenna arrays based on their corresponding vectors, thereby aligning the transmission direction toward target object 140. Thus, one or more slave base stations 130 can synchronously and directionally transmit the third sensing signal based on the information received in S360 toward target object 140. After S375, method 300 proceeds to S390.

[0118] Next, a method 2 for enabling the base station to synchronously send a sensing signal to the target object is described. The method 2 includes steps S380 and S385.

[0119] In S380, the base station sends information related to the third perception signal to the cooperative base station, so that the cooperative base station can send the third perception signal.

[0120] For example, base station 120 may transmit the third perception signal itself to one or more slave base stations 130, or may transmit information enabling the slave base stations 130 to generate the same third perception signal. In this way, under the control of master base station 120, slave base stations 130 may simultaneously transmit the same third perception signal to target object 140. The third perception signal may be, for example, a CSI-RS. By multiplexing existing CSI-RS for sensing, system signaling overhead may be reduced, and system implementation complexity may be lowered.

[0121] In S385 , the base station sends the target object position based on the sensing result to the cooperative base station, so that the cooperative base station synchronously sends the third sensing signal to the target object through beamforming according to the target object position.

[0122] For example, the master base station 120 may transmit the more accurate perception result of the target object 140 received in S340 to one or more slave base stations 130. In this way, the slave base stations 130 may determine the direction or position of the target object 140. The slave base stations 130 may then synchronously transmit the third perception signal in a directionally directed manner toward the target object 140 through beamforming. Because directional transmission can concentrate more energy in the direction of the target object, the signal that reaches and is reflected from the target object 140 has greater energy and a higher signal-to-noise ratio, which helps the terminal device 110 obtain more accurate perception results.

[0123] After the master and slave base stations are synchronized, any of the above methods can be used to ensure that the slave base stations, under the control of the master base station, synchronously transmit the same sensing signal to the target object, thereby generating more and stronger reflected signals at the target object. These reflected signals are combined to enhance the signal-to-noise ratio of the reflected signal from the target object.

[0124] In S390, synchronously with the cooperative base station sending the third perception signal directionally toward the target object, the base station sends the third perception signal directionally toward the target object through beamforming, and sends the third perception signal to the terminal device, so that the terminal device regains the perception result of the target object based on the third perception signal received from the base station, the third perception signal reflected from the target object, and the position of the base station.

[0125] In some embodiments, when the slave base station 130 synchronously transmits the third sensing signal in a directionally transmitted manner toward the target object 140 in S375 or S385, the master base station 120 also needs to synchronously transmit the third sensing signal to the target object 140 and the terminal device 110. The master base station 120 may transmit the third sensing signal in a directionally transmitted manner toward the target object 140 based on the joint beamforming matrix, or may transmit the third sensing signal in a directionally transmitted manner toward the target object 140 based on the position of the target object 140 obtained in S340. By having the master base station 120 and the slave base station 130 synchronously transmit the third sensing signal to the target object 140, and the master base station 120 simultaneously transmit the third sensing signal to the terminal device 110, the terminal device 110 may sense the target object 140 based on an existing sensing algorithm. The increased number of third sensing signals reflected from the target object 140 results in a higher signal-to-noise ratio, enabling the terminal device 120 to obtain multiple signals for collaborative sensing, thereby generating a sensing combining gain. Thus, the terminal device 110 may utilize more accurate signals for sensing, thereby improving sensing accuracy.

[0126] In some embodiments, after executing S390, the process may return to S340 to provide further accurate sensing results to the primary base station 120, and may proceed to S345 to determine whether the sensing requirements are met. If the sensing requirements are not met, subsequent sensing operations may be continued by determining new or more cooperative base stations until the sensing requirements are met.

[0127] In the above perception process involving terminal devices and / or collaborative base stations, the reflected signal of the perception signal is enhanced and the signal-to-noise ratio is improved due to the directional transmission to the target object, which effectively reduces the perception interference of the neighboring cell base station on the current cell, thereby improving the user perception performance and improving the perception accuracy in the mobile communication system. Through the reuse of CSI-RS signals, simple interaction between base stations or between base stations and terminal devices, etc., the signaling overhead is reduced, the system complexity is reduced, and the hardware architecture changes are avoided under the condition of existing base station deployment. The use of full-duplex technology is also avoided, making it easy to implement in engineering. Moreover, through the selection and collaboration mode of collaborative base stations, the resource utilization of collaborative base stations can be effectively improved and optimized. In addition, with the help of collaborative base stations, the perception service coverage of the main base station can be expanded, and it can be directly applied in the current base station without changing the original architecture, which helps to achieve architecture upgrades at a lower cost.

[0128] Next, an example of the interaction between a base station, a terminal device, and / or a cooperating base station during the process of sensing a target object according to an embodiment of the present disclosure will be described with reference to Figure 4 . Different embodiments may include different steps in Figure 4 . For example, when base station gNB1 determines that it can perform the sensing service based on the sensing requirements of the terminal device UE, it may only execute S401 and S402 . After gNB1 and the UE collaboratively complete the sensing of the target object and obtain a more accurate sensing result, the sensing service may be terminated without the participation of the cooperating base station gNBm. If the sensing result obtained by the collaboration between gNB1 and the UE fails to meet the sensing requirements, the cooperating base station gNBm may participate in the sensing service to help further improve sensing accuracy. Although Figure 4 shows only one cooperating base station, those skilled in the art will appreciate that there may be more than one cooperating base station, such as two or three.

[0129] In S401, the UE performs initial access to gNB1. For example, before initiating a sensing request, the UE first completes a cell search and random access procedure. As a result, the UE establishes a connection with gNB1.

[0130] In S402, the UE reports a sensing requirement including sensing metrics such as accuracy and resolution to gNB1. For example, after the UE and gNB1 enter a connected state, the UE sends the sensing requirement to gNB1. For example, the sensing requirement may be initiated according to 3GPP SA1 Rel-19.

[0131] In S403, gNB1 determines whether it can meet the required sensing requirements. For example, gNB1 can determine whether it can perform single-base station sensing based on its own resource configuration. If single-base station sensing can meet the UE's required sensing requirements, gNB1 performs sensing and notifies the UE of the sensing result. Otherwise, gNB1 activates the "single-base station" collaboration module to trigger the base station and terminal device to collaborate on communication sensing.

[0132] It should be noted here that when a single base station cannot complete perception, considering the relatively large resource overhead of cooperating with other base stations for communication perception, gNB1 first performs perception through station-side collaboration (i.e., collaboration between gNB1 and UE).

[0133] In S403, when gNB1 determines that it cannot meet the indicators of the perception requirements, the interaction process enters S404.

[0134] In S404, gNB1 transmits a first sensing signal (CSI-RS) to the UE. At the same time, gNB1 may broadcast the signal so that the target object can reflect the signal.

[0135] In S405, gNB1 sends its own location information to the UE. This step can be performed simultaneously with or before S404. For example, gNB1 can send a CSI-RS signal to the UE along with its own location information based on the optimal transmit / receive beam pair established during the UE's initial access.

[0136] In S406, the UE completes a preliminary estimation of the position of the target object (also referred to as the perceived target) through geometric relationships based on the gNB1 location information and the received perception signal CSI-RS (including the CSI-RS received from gNB1 through the direct channel and the CSI-RS reflected by the target object).

[0137] In S407, the UE reports the location information of the target object to gNB1. For example, the UE sends the sensing result including the location information of the target object to gNB1 in CSI.

[0138] In S408, gNB1 uses the target sensing information reported by the UE as auxiliary information to design a beamforming scheme tailored to the sensing task, aiming to transmit signals toward the target. gNB1 then transmits the CSI-RS, a second sensing signal, simultaneously toward the UE and the target.

[0139] In S409, the UE receives the second perception signal CSI-RS from two directions: direct transmission from gNB1 and reflection from the target object.

[0140] In S410 , the UE performs refined perception of the target's location information using an existing perception algorithm based on the received second perception signals in two directions and in combination with the location of the base station.

[0141] In S411, the UE reports the perception result to gNB1.

[0142] In S412, gNB1 determines whether the sensing requirement indicators are met based on the reported sensing results. If so, the interaction process ends. Otherwise, gNB1 activates the "multi-station terminal" coordination module to trigger the communication sensing process of the base station, coordinated base stations, and terminal devices.

[0143] In S412, when gNB1 determines that the perception result fed back in S411 still does not meet the perception requirements, the interaction process enters S413.

[0144] In S413, gNB1 selects other gNBm to participate in collaborative sensing according to a predetermined strategy based on the UE location and the target object location fed back in S411.

[0145] For example, gNB1 can initiate a collaboration request to a candidate base station, searching for other base stations that can provide sensing capabilities. gNB1 can select a certain number of collaborative base stations, denoted as gNBm, based on the sensing capability information provided by other base stations in response to the collaboration request. For example, the following method can be used to determine the collaborative base stations, which is both easy to implement and has low algorithmic complexity. In this method, the number of collaborative base stations can be determined based on gNB1's resource headroom, and the sensing capability of the candidate base station can be defined as the ratio γ of the number of sensing antennas of the candidate base station to the distance between the candidate base station and the target object. γ is used as a selection metric to select the top-ranked candidate base stations as collaborative base stations. γ can be specifically expressed as:

[0146] Those skilled in the art will appreciate that the number of collaborative base stations gNBm and the sensing capability indicators can be flexibly adjusted based on actual needs and are not specifically limited in this disclosure. For example, the base station closest to the target object or the primary base station can be determined as a collaborative base station.

[0147] In S414, gNB1 and gNBm complete clock synchronization. For example, the master station gNB1 and the coordinated base station gNBm complete clock synchronization by exchanging information via the Xn interface.

[0148] In S415, gNB1 sends the third perception signal CSI-RS configuration information to each collaborative base station gNBm through the Xn interface, and at the same time requests each collaborative base station gNBm to report its own location information.

[0149] In S416, each collaborative base station gNBm reports its own location information to gNB1.

[0150] In S417, gNB1 generates a joint beamforming matrix based on the target location information fed back by the UE and the acquired location information of each cooperating base station gNBm, and sends the joint beamforming matrix to each cooperating base station gNBm. The method for generating the joint beamforming matrix is ​​described above with reference to S370 and is not repeated here.

[0151] In S418, gNB1 sends a third perception signal CSI-RS to the UE.

[0152] In parallel with step S418, in step S419, each cooperating base station gNBm simultaneously transmits a third sensing signal (CSI-RS) toward the target based on the received beamforming matrix. At this point, gNB1 can also simultaneously transmit the third sensing signal toward the target based on the joint beamforming matrix generated in step S417.

[0153] In S420, the UE recalculates the location information of the target object based on the third sensing signal received from gNB1 and the third sensing signal sent from gNB1 and gNBm and reflected from the target object, combined with the location of gNB1.

[0154] In S421, the UE feeds the sensing result back to gNB1. If the sensing result meets the sensing requirements, the interaction process ends, or sensing services continue to be provided based on the UE's current service needs. If the sensing result still does not meet the sensing requirements, the process returns to S413 to reselect a new or additional collaborative base station to repeat the collaborative sensing process.

[0155] The above describes various exemplary devices and methods according to embodiments of the present disclosure. It should be understood that the operations or functions of these devices can be combined with each other to achieve more or fewer operations or functions than described. The operational steps of each method can also be combined with each other in any appropriate order to similarly achieve more or fewer operations than described.

[0156] It should be understood that the machine-executable instructions in the machine-readable storage medium or program product according to the embodiments of the present disclosure can be configured to perform operations corresponding to the above-mentioned device and method embodiments. When referring to the above-mentioned device and method embodiments, the embodiments of the machine-readable storage medium or program product are clear to those skilled in the art and are therefore not described again. Machine-readable storage media and program products for carrying or including the above-mentioned machine-executable instructions also fall within the scope of the present disclosure. Such storage media may include, but are not limited to, floppy disks, optical disks, magneto-optical disks, memory cards, memory sticks, and the like.

[0157] In addition, it should be understood that the above series of processes and devices can also be implemented through software and / or firmware. In the case of implementation through software and / or firmware, the program constituting the software is installed from a storage medium or a network to a computer with a dedicated hardware structure, such as the general-purpose personal computer 1300 shown in Figure 5. When various programs are installed, the computer can perform various functions, etc. Figure 5 is a block diagram showing an example structure of a personal computer as an information processing device that can be used in an embodiment of the present disclosure. In one example, the personal computer can correspond to the above-mentioned exemplary terminal device according to the present disclosure.

[0158] 5 , a central processing unit (CPU) 1301 executes various processes according to a program stored in a read-only memory (ROM) 1302 or a program loaded from a storage section 1308 to a random access memory (RAM) 1303. In the RAM 1303, data required when the CPU 1301 executes various processes and the like is also stored as needed.

[0159] The CPU 1301, the ROM 1302, and the RAM 1303 are connected to one another via a bus 1304. An input / output interface 1305 is also connected to the bus 1304.

[0160] The following components are connected to the input / output interface 1305: an input section 1306 including a keyboard, a mouse, etc.; an output section 1307 including a display such as a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 1308 including a hard disk, etc.; and a communication section 1309 including a network interface card such as a LAN card, a modem, etc. The communication section 1309 performs communication processing via a network such as the Internet.

[0161] A drive 1310 is also connected to the input / output interface 1305 as needed. A removable medium 1311 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc. is mounted on the drive 1310 as needed so that a computer program read therefrom is installed in the storage section 1308 as needed.

[0162] In the case of realizing the above-described series of processing by software, a program constituting the software is installed from a network such as the Internet or a storage medium such as the removable medium 1311 .

[0163] Those skilled in the art will appreciate that such storage media are not limited to the removable medium 1311 shown in FIG5 , which stores the program and is distributed separately from the device to provide the program to the user. Examples of the removable medium 1311 include magnetic disks (including floppy disks (registered trademark)), optical disks (including compact disk read-only memories (CD-ROMs) and digital versatile disks (DVDs)), magneto-optical disks (including minidiscs (MDs) (registered trademark)), and semiconductor memories. Alternatively, the storage medium may be the ROM 1302, a hard disk included in the storage section 1308, or the like, in which the program is stored and distributed to the user together with the device containing the program.

[0164] The technology of the present disclosure can be applied to various products. For example, the base station mentioned in the present disclosure can be implemented as any type of evolved Node B (gNB), such as macro gNB and small gNB. Small gNB can be a gNB that covers a cell smaller than a macro cell, such as pico gNB, micro gNB and home (femto) gNB. Alternatively, the base station can be implemented as any other type of base station, such as NodeB and Base Transceiver Station (BTS). The base station may include: a main body (also called a base station device) configured to control wireless communication; and one or more remote radio heads (RRH) located in a place different from the main body. In addition, the various types of terminals described below can all work as base stations by temporarily or semi-persistently performing base station functions.

[0165] For example, the terminal device mentioned in the present disclosure is also referred to as a user device in some examples, and can be implemented as a mobile terminal (such as a smart phone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable / dongle-type mobile router, and a digital camera) or a vehicle-mounted terminal (such as a car navigation device). The user device can also be implemented as a terminal that performs machine-to-machine (M2M) communication (also referred to as a machine-type communication (MTC) terminal). In addition, the user device can be a wireless communication module (such as an integrated circuit module including a single chip) installed on each of the above-mentioned terminals.

[0166] Application examples according to the present disclosure will be described below with reference to FIG. 6 to FIG. 9 .

[0167] [Application examples for base stations]

[0168] It should be understood that the term "base station" in the present disclosure has the full breadth of its usual meaning and at least includes a wireless communication station used as part of a wireless communication system or radio system to facilitate communication. Examples of base stations may include, but are not limited to, the following: a base station may be one or both of a base transceiver station (BTS) and a base station controller (BSC) in a GSM system, one or both of a radio network controller (RNC) and a Node B in a WCDMA system, an eNB in ​​an LTE and LTE-Advanced system, or a corresponding network node in a future communication system (such as a gNB, eLTE eNB, etc. that may appear in a 5G communication system). Some of the functions in the base station of the present disclosure may also be implemented as an entity that has a control function for communication in D2D, M2M, and V2V communication scenarios, or as an entity that plays a spectrum coordination role in a cognitive radio communication scenario.

[0169] First application example

[0170] FIG6 is a block diagram illustrating a first example of a schematic configuration of a gNB to which the techniques of this disclosure may be applied. gNB 1400 includes multiple antennas 1410 and a base station device 1420. Base station device 1420 and each antenna 1410 may be connected to each other via an RF cable. In one implementation, gNB 1400 (or base station device 1420) herein may correspond to electronic devices 300A, 1300A, and / or 1500B described above.

[0171] Each antenna 1410 includes a single or multiple antenna elements (such as multiple antenna elements included in a multiple-input multiple-output (MIMO) antenna) and is used for base station device 1420 to transmit and receive wireless signals. As shown in Figure 6, gNB 1400 may include multiple antennas 1410. For example, multiple antennas 1410 may be compatible with multiple frequency bands used by gNB 1400.

[0172] The base station device 1420 includes a controller 1421 , a memory 1422 , a network interface 1423 , and a wireless communication interface 1425 .

[0173] The controller 1421 may be, for example, a CPU or DSP, and operates various higher-layer functions of the base station device 1420. For example, the controller 1421 generates data packets based on the data in the signal processed by the wireless communication interface 1425 and transmits the generated packets via the network interface 1423. The controller 1421 may bundle data from multiple baseband processors to generate bundled packets and transmit the generated bundled packets. The controller 1421 may have logic functions for performing control such as radio resource control, radio bearer control, mobility management, admission control, and scheduling. This control may be performed in conjunction with a nearby gNB or core network node. The memory 1422 includes RAM and ROM and stores programs executed by the controller 1421 and various types of control data (such as terminal lists, transmission power data, and scheduling data).

[0174] The network interface 1423 is a communication interface for connecting the base station device 1420 to the core network 1424. The controller 1421 can communicate with the core network node or another gNB via the network interface 1423. In this case, the gNB 1400 and the core network node or other gNB can be connected to each other via a logical interface (such as an S1 interface and an X2 interface). The network interface 1423 can also be a wired communication interface or a wireless communication interface for wireless backhaul. If the network interface 1423 is a wireless communication interface, the network interface 1423 can use a higher frequency band for wireless communication than the frequency band used by the wireless communication interface 1425.

[0175] The wireless communication interface 1425 supports any cellular communication scheme, such as Long Term Evolution (LTE) and LTE-Advanced, and provides wireless connectivity to terminals located in the cell of the gNB 1400 via the antenna 1410. The wireless communication interface 1425 may typically include, for example, a baseband (BB) processor 1426 and RF circuitry 1427. The BB processor 1426 can perform various signal processing functions, such as encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and performs various types of signal processing for layers such as Layer 1 (L1), Medium Access Control (MAC), Radio Link Control (RLC), and Packet Data Convergence Protocol (PDCP). In place of the controller 1421, the BB processor 1426 may perform some or all of the aforementioned logical functions. The BB processor 1426 may be a memory storing communication control programs, or a module including a processor configured to execute programs and associated circuitry. Program updates can modify the functionality of the BB processor 1426. This module may be a card or blade inserted into a slot in the base station device 1420. Alternatively, it may be a chip mounted on the card or blade. Meanwhile, the RF circuit 1427 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives wireless signals via the antenna 1410. Although FIG6 shows an example in which one RF circuit 1427 is connected to one antenna 1410, the present disclosure is not limited to this illustration, and one RF circuit 1427 may be connected to multiple antennas 1410 at the same time.

[0176] As shown in Figure 6 , the wireless communication interface 1425 may include multiple BB processors 1426. For example, multiple BB processors 1426 may be compatible with multiple frequency bands used by gNB 1400. As shown in Figure 6 , the wireless communication interface 1425 may include multiple RF circuits 1427. For example, multiple RF circuits 1427 may be compatible with multiple antenna elements. While Figure 6 illustrates an example in which the wireless communication interface 1425 includes multiple BB processors 1426 and multiple RF circuits 1427, the wireless communication interface 1425 may also include a single BB processor 1426 or a single RF circuit 1427.

[0177] Second application example

[0178] FIG7 is a block diagram illustrating a second example of a schematic configuration of a gNB to which the techniques of the present disclosure can be applied. A gNB 1530 includes multiple antennas 1540, a base station device 1550, and an RRH 1560. The RRH 1560 and each antenna 1540 can be connected to each other via an RF cable. The base station device 1550 and the RRH 1560 can be connected to each other via a high-speed line such as an optical fiber cable. In one implementation, the gNB 1530 (or base station device 1550) herein may correspond to the electronic devices 300A, 1300A, and / or 1500B described above.

[0179] Each antenna 1540 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used for RRH 1560 to transmit and receive wireless signals. As shown in Figure 7, gNB 1530 may include multiple antennas 1540. For example, multiple antennas 1540 may be compatible with multiple frequency bands used by gNB 1530.

[0180] Base station device 1550 includes a controller 1551, a memory 1552, a network interface 1553, a wireless communication interface 1555, and a connection interface 1557. Controller 1551, memory 1552, and network interface 1553 are the same as controller 1421, memory 1422, and network interface 1423 described with reference to FIG.

[0181] The wireless communication interface 1555 supports any cellular communication scheme (such as LTE and LTE-Advanced) and provides wireless communication to terminals located in the sector corresponding to the RRH 1560 via the RRH 1560 and the antenna 1540. The wireless communication interface 1555 may generally include, for example, a BB processor 1556. The BB processor 1556 is identical to the BB processor 1426 described with reference to FIG. 6 , except that the BB processor 1556 is connected to the RF circuit 1564 of the RRH 1560 via the connection interface 1557. As shown in FIG. 7 , the wireless communication interface 1555 may include multiple BB processors 1556. For example, multiple BB processors 1556 may be compatible with multiple frequency bands used by the gNB 1530. Although FIG. 7 illustrates an example in which the wireless communication interface 1555 includes multiple BB processors 1556, the wireless communication interface 1555 may also include a single BB processor 1556.

[0182] The connection interface 1557 is an interface for connecting the base station device 1550 (wireless communication interface 1555) to the RRH 1560. The connection interface 1557 may also be a communication module for connecting the base station device 1550 (wireless communication interface 1555) to the RRH 1560 for communication in the high-speed line.

[0183] The RRH 1560 includes a connection interface 1561 and a wireless communication interface 1563 .

[0184] The connection interface 1561 is an interface for connecting the RRH 1560 (wireless communication interface 1563) to the base station device 1550. The connection interface 1561 may also be a communication module for communication in the above-mentioned high-speed line.

[0185] The wireless communication interface 1563 transmits and receives wireless signals via the antenna 1540. The wireless communication interface 1563 may generally include, for example, an RF circuit 1564. The RF circuit 1564 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives wireless signals via the antenna 1540. Although FIG. 7 shows an example in which one RF circuit 1564 is connected to one antenna 1540, the present disclosure is not limited to this illustration, and one RF circuit 1564 may be connected to multiple antennas 1540 simultaneously.

[0186] As shown in FIG7 , the wireless communication interface 1563 may include multiple RF circuits 1564. For example, the multiple RF circuits 1564 may support multiple antenna elements. Although FIG7 shows an example in which the wireless communication interface 1563 includes multiple RF circuits 1564, the wireless communication interface 1563 may also include a single RF circuit 1564.

[0187] [Application examples on user devices]

[0188] First application example

[0189] Figure 8 is a block diagram illustrating an example of a schematic configuration of a smartphone 1600 to which the techniques of the present disclosure may be applied. The smartphone 1600 includes a processor 1601, a memory 1602, a storage device 1603, an external connection interface 1604, a camera 1606, a sensor 1607, a microphone 1608, an input device 1609, a display 1610, a speaker 1611, a wireless communication interface 1612, one or more antenna switches 1615, one or more antennas 1616, a bus 1617, a battery 1618, and an auxiliary controller 1619. In one implementation, the smartphone 1600 (or processor 1601) herein may correspond to the aforementioned terminal devices 300B and / or 1500A.

[0190] The processor 1601 may be, for example, a CPU or a system on a chip (SoC), and controls the functions of the application layer and other layers of the smartphone 1600. The memory 1602 includes RAM and ROM, and stores data and programs executed by the processor 1601. The storage device 1603 may include storage media such as semiconductor memories and hard disks. The external connection interface 1604 is an interface for connecting external devices (such as memory cards and universal serial bus (USB) devices) to the smartphone 1600.

[0191] The camera 1606 includes an image sensor (such as a charge coupled device (CCD) and a complementary metal oxide semiconductor (CMOS)) and generates a captured image. The sensor 1607 may include a group of sensors such as a measurement sensor, a gyroscope sensor, a geomagnetic sensor, and an acceleration sensor. The microphone 1608 converts the sound input to the smartphone 1600 into an audio signal. The input device 1609 includes, for example, a touch sensor, a keypad, a keyboard, a button, or a switch configured to detect a touch on the screen of the display device 1610, and receives an operation or information input from the user. The display device 1610 includes a screen (such as a liquid crystal display (LCD) and an organic light emitting diode (OLED) display) and displays the output image of the smartphone 1600. The speaker 1611 converts the audio signal output from the smartphone 1600 into sound.

[0192] The wireless communication interface 1612 supports any cellular communication scheme (such as LTE and LTE-Advanced) and performs wireless communications. The wireless communication interface 1612 may generally include, for example, a BB processor 1613 and an RF circuit 1614. The BB processor 1613 may perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and perform various types of signal processing for wireless communication. Meanwhile, the RF circuit 1614 may include, for example, a mixer, a filter, and an amplifier, and transmit and receive wireless signals via an antenna 1616. The wireless communication interface 1612 may be a chip module on which the BB processor 1613 and the RF circuit 1614 are integrated. As shown in FIG8 , the wireless communication interface 1612 may include multiple BB processors 1613 and multiple RF circuits 1614. Although FIG8 shows an example in which the wireless communication interface 1612 includes multiple BB processors 1613 and multiple RF circuits 1614, the wireless communication interface 1612 may also include a single BB processor 1613 or a single RF circuit 1614.

[0193] In addition, in addition to the cellular communication scheme, the wireless communication interface 1612 can support other types of wireless communication schemes, such as a short-range wireless communication scheme, a near field communication scheme, and a wireless local area network (LAN) scheme. In this case, the wireless communication interface 1612 may include a BB processor 1613 and an RF circuit 1614 for each wireless communication scheme.

[0194] Each of the antenna switches 1615 switches the connection destination of the antenna 1616 between a plurality of circuits (eg, circuits for different wireless communication schemes) included in the wireless communication interface 1612 .

[0195] Each of the antennas 1616 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used for transmitting and receiving wireless signals via the wireless communication interface 1612. As shown in FIG8 , the smartphone 1600 may include multiple antennas 1616. Although FIG8 shows an example in which the smartphone 1600 includes multiple antennas 1616, the smartphone 1600 may also include a single antenna 1616.

[0196] In addition, the smartphone 1600 may include an antenna 1616 for each wireless communication scheme. In this case, the antenna switch 1615 may be omitted from the configuration of the smartphone 1600.

[0197] The bus 1617 connects the processor 1601, the memory 1602, the storage device 1603, the external connection interface 1604, the camera 1606, the sensor 1607, the microphone 1608, the input device 1609, the display device 1610, the speaker 1611, the wireless communication interface 1612, and the auxiliary controller 1619. The battery 1618 supplies power to the various blocks of the smartphone 1600 shown in FIG8 via feeders, which are partially shown as dashed lines in the figure. The auxiliary controller 1619 operates the minimum necessary functions of the smartphone 1600, for example, in sleep mode.

[0198] Second application example

[0199] FIG9 is a block diagram illustrating an example of a schematic configuration of a car navigation device 1720 to which the techniques of the present disclosure may be applied. Car navigation device 1720 includes a processor 1721, a memory 1722, a global positioning system (GPS) module 1724, a sensor 1725, a data interface 1726, a content player 1727, a storage medium interface 1728, an input device 1729, a display device 1730, a speaker 1731, a wireless communication interface 1733, one or more antenna switches 1736, one or more antennas 1737, and a battery 1738. In one implementation, car navigation device 1720 (or processor 1721) herein may correspond to terminal device 300B and / or 1500A described above.

[0200] The processor 1721 may be, for example, a CPU or an SoC, and controls a navigation function and other functions of the car navigation device 1720. The memory 1722 includes a RAM and a ROM, and stores data and programs executed by the processor 1721.

[0201] The GPS module 1724 uses GPS signals received from GPS satellites to measure the position (such as latitude, longitude, and altitude) of the car navigation device 1720. The sensor 1725 may include a group of sensors such as a gyroscope sensor, a geomagnetic sensor, and an air pressure sensor. The data interface 1726 is connected to, for example, the vehicle network 1741 via a terminal not shown, and obtains data generated by the vehicle (such as vehicle speed data).

[0202] The content player 1727 reproduces content stored in a storage medium (such as a CD or DVD) inserted into the storage medium interface 1728. The input device 1729 includes, for example, a touch sensor, button, or switch configured to detect a touch on the screen of the display device 1730, and receives operations or information input from the user. The display device 1730 includes a screen such as an LCD or OLED display and displays images of the navigation function or reproduced content. The speaker 1731 outputs sounds of the navigation function or reproduced content.

[0203] The wireless communication interface 1733 supports any cellular communication scheme (such as LTE and LTE-Advanced) and performs wireless communication. The wireless communication interface 1733 may generally include, for example, a BB processor 1734 and an RF circuit 1735. The BB processor 1734 may perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and perform various types of signal processing for wireless communication. Meanwhile, the RF circuit 1735 may include, for example, a mixer, a filter, and an amplifier, and transmit and receive wireless signals via an antenna 1737. The wireless communication interface 1733 may also be a chip module on which the BB processor 1734 and the RF circuit 1735 are integrated. As shown in FIG9 , the wireless communication interface 1733 may include multiple BB processors 1734 and multiple RF circuits 1735. Although FIG9 shows an example in which the wireless communication interface 1733 includes multiple BB processors 1734 and multiple RF circuits 1735, the wireless communication interface 1733 may also include a single BB processor 1734 or a single RF circuit 1735.

[0204] In addition, in addition to the cellular communication scheme, the wireless communication interface 1733 can support other types of wireless communication schemes, such as short-range wireless communication schemes, near field communication schemes, and wireless LAN schemes. In this case, for each wireless communication scheme, the wireless communication interface 1733 can include a BB processor 1734 and an RF circuit 1735.

[0205] Each of the antenna switches 1736 switches a connection destination of the antenna 1737 between a plurality of circuits included in the wireless communication interface 1733 , such as circuits for different wireless communication schemes.

[0206] Each of the antennas 1737 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used for transmitting and receiving wireless signals via the wireless communication interface 1733. As shown in FIG9, the car navigation device 1720 may include multiple antennas 1737. Although FIG9 shows an example in which the car navigation device 1720 includes multiple antennas 1737, the car navigation device 1720 may also include a single antenna 1737.

[0207] In addition, the car navigation device 1720 may include an antenna 1737 for each wireless communication scheme. In this case, the antenna switch 1736 may be omitted from the configuration of the car navigation device 1720.

[0208] The battery 1738 supplies power to the respective blocks of the car navigation device 1720 shown in Fig. 9 via a feeder line, which is partially shown as a dotted line in the figure. The battery 1738 accumulates the power supplied from the vehicle.

[0209] The technology of the present disclosure may also be implemented as an in-vehicle system (or vehicle) 1740 including a car navigation device 1720, an in-vehicle network 1741, and one or more blocks of a vehicle module 1742. The vehicle module 1742 generates vehicle data (such as vehicle speed, engine speed, and fault information) and outputs the generated data to the in-vehicle network 1741.

[0210] The exemplary embodiments of the present disclosure are described above with reference to the accompanying drawings, but the present disclosure is certainly not limited to the above examples. Those skilled in the art may obtain various changes and modifications within the scope of the appended claims, and it should be understood that these changes and modifications will naturally fall within the technical scope of the present disclosure.

[0211] For example, a plurality of functions included in one unit in the above embodiments may be implemented by separate devices. Alternatively, a plurality of functions implemented by a plurality of units in the above embodiments may be implemented by separate devices, respectively. In addition, one of the above functions may be implemented by a plurality of units. Needless to say, such a configuration is included in the technical scope of the present disclosure.

[0212] In this specification, the steps described in the flowchart include not only processing executed in time series in the order described, but also processing executed in parallel or individually rather than necessarily in time series. In addition, even in the steps processed in time series, it goes without saying that the order can be changed as appropriate.

[0213] Although the present disclosure and its advantages have been described in detail, it should be understood that various changes, substitutions and transformations can be made without departing from the spirit and scope of the present disclosure as defined by the appended claims. Moreover, the terms "comprises," "comprising," or any other variations thereof in the embodiments of the present disclosure are intended to cover non-exclusive inclusions, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the statement "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0214] It will be appreciated from the description herein that the embodiments of the present disclosure can be configured as follows: 1. An electronic device on the network device side of a wireless communication system, comprising a processing circuit system, the processing circuit system being configured to: broadcast a first perception signal so that a terminal device obtains a perception result of a target object based on the first perception signal received from the electronic device, the first perception signal reflected from the target object, and the position of the electronic device; receive the perception result from the terminal device; and when sending a second perception signal to the terminal device, send the second perception signal to the target object through beamforming based on the received perception result, so that the terminal device regains the perception result of the target object based on the second perception signal received from the electronic device, the second perception signal reflected from the target object, and the position of the electronic device. 2. An electronic device according to clause 1, wherein the processing circuit system is further configured to: receive the regained perception result from the terminal device; and determine, based on the regained perception result, whether it is necessary to collaborate with other electronic devices on the network device side to perform target perception. 3. The electronic device according to clause 2, wherein the processing circuit system is further configured to: determine a cooperative electronic device on the network device side that can cooperate in target object perception by sending a cooperation request to a candidate electronic device on the network device side when it is determined that it is necessary to cooperate with other electronic devices to perceive the target object. 4. The electronic device according to clause 3, wherein the processing circuit system is further configured to: perform clock synchronization with the cooperative electronic device so that the electronic device can control the cooperative electronic device to perform synchronous signal transmission. 5. The electronic device according to clause 4, wherein the processing circuit system is further configured to: send information related to the third perception signal to the cooperative electronic device so that the cooperative electronic device can send the third perception signal; obtain the position of the cooperative electronic device; generate a beamforming matrix based on the target object position based on the perception result and the obtained position of the cooperative electronic device; and send the generated beamforming matrix to the cooperative electronic device so that the cooperative electronic device can synchronously send the third perception signal to the target object through beamforming according to the beamforming matrix. 6. An electronic device according to clause 4, wherein the processing circuit system is further configured to: send information related to the third perception signal to the collaborative electronic device so that the collaborative electronic device can send the third perception signal; and send the target object position based on the perception result to the collaborative electronic device so that the collaborative electronic device can synchronously send the third perception signal to the target object through beamforming according to the target object position.7. The electronic device according to clause 5 or 6, wherein the processing circuit system is further configured to: synchronously with the cooperative electronic device transmitting the third sensing signal in a directionally directed manner toward the target object, transmit the third sensing signal in a directionally directed manner toward the target object through beamforming, and transmit the third sensing signal to the terminal device, so that the terminal device re-acquires the sensing result of the target object based on the third sensing signal received from the electronic device, the third sensing signal reflected from the target object, and the position of the electronic device. 8. The electronic device according to clause 5 or 6, wherein the third sensing signal is a channel state information reference signal (CSI-RS). 9. The electronic device according to clause 3, wherein the processing circuit system is further configured to: determine the number of cooperative electronic devices based on the resource margin of the electronic device; and select the candidate electronic device with the highest number of sensing capabilities as the cooperative electronic device. 10. The electronic device according to clause 9, wherein the sensing capability of the candidate electronic device is determined based on the number of sensing antennas of the candidate electronic device and the distance of the candidate electronic device from the target object. 11. The electronic device of clause 1, wherein the processing circuitry is further configured to: receive a sensing requirement from a terminal device; and determine, based on the sensing requirement, whether it is necessary to collaborate with the terminal device to sense the target object. 12. The electronic device of clause 11, wherein the processing circuitry is further configured to: transmit the location of the electronic device to the terminal device if it is determined that it is necessary to collaborate with the terminal device to sense the target object. 13. The electronic device of clause 1, wherein at least one of the first sensing signal and the second sensing signal is a channel state information reference signal (CSI-RS), and at least one of the acquired sensing result and the reacquired sensing result is received via channel state information (CSI). 14. An electronic device for a user equipment (UE) in a wireless communication system, comprising a processing circuit system, the processing circuit system being configured to: obtain a perception result of a target object based on a first perception signal received from a base station, a first perception signal broadcast from the base station and reflected from the target object, and the location of the base station; send the perception result to the base station so that the base station transmits a second perception signal directionally toward the target object through beamforming based on the perception result; and re-obtain the perception result of the target object based on a second perception signal received from the base station, the second perception signal reflected from the target object, and the location of the base station. 15. An electronic device according to clause 14, wherein the processing circuit system is further configured to: send the re-obtained perception result to the base station so that the base station determines whether it needs to cooperate with other base stations to perform target perception.16. The electronic device according to clause 15, wherein the processing circuit system is further configured to: in the case where the base station collaborates with other base stations to perform target object perception, re-obtain a target object perception result based on a third perception signal received from the base station, a third perception signal synchronously transmitted by the base station and other base stations toward the target and reflected from the target, and the position of the base station. 17. The electronic device according to clause 16, wherein the third perception signal is a channel state information reference signal (CSI-RS). 18. The electronic device according to clause 14, wherein the processing circuit system is further configured to: before obtaining the target object perception result, send a perception request to the base station, so that the base station determines whether it needs to collaborate with the electronic device to perform target object perception based on the perception request. 19. The electronic device according to clause 18, wherein the processing circuit system is further configured to: in the case where the base station collaborates with the electronic device to perform target object perception, receive the base station's position from the base station. 20. The electronic device of clause 14, wherein the first perception signal received from the base station and the first perception signal reflected from the target are transmitted simultaneously from the base station, and the second perception signal received from the base station and the second perception signal reflected from the target are transmitted simultaneously from the base station. 21. The electronic device of clause 14, wherein at least one of the first perception signal and the second perception signal is a channel state information reference signal (CSI-RS), and at least one of the obtained perception result and the re-obtained perception result is transmitted via channel state information (CSI). 22. A method for use in a wireless communication system, comprising: broadcasting a first perception signal so that a terminal device can obtain a perception result of the target based on the first perception signal received from the base station, the first perception signal reflected from the target, and the location of the base station; receiving the perception result from the terminal device; and when transmitting a second perception signal to the terminal device, directionally transmitting the second perception signal toward the target using beamforming based on the received perception result, so that the terminal device can re-obtain a perception result of the target based on the second perception signal received from the base station, the second perception signal reflected from the target, and the location of the base station. 23. A method for use in a wireless communication system, comprising: obtaining a perception result of a target object based on a first perception signal received from a base station, a first perception signal broadcast from the base station and reflected from the target object, and a position of the base station; sending the perception result to the base station so that the base station sends a second perception signal toward the target object through beamforming based on the perception result; and re-obtaining the perception result of the target object based on a second perception signal received from the base station, the second perception signal reflected from the target object, and the position of the base station.24. A computer-readable storage medium storing one or more instructions that, when executed by one or more processors of an electronic device, cause the electronic device to perform the method according to clause 22 or 23.

Claims

1. An electronic device for use on a network device side in a wireless communication system, comprising a processing circuit system, wherein the processing circuit system is configured to: Broadcasting a first sensing signal so that the terminal device obtains a sensing result of the target object based on the first sensing signal received from the electronic device, the first sensing signal reflected from the target object, and the position of the electronic device; receiving the sensing result from a terminal device; as well as When sending the second perception signal to the terminal device, the second perception signal is directionally sent toward the target object through beamforming according to the received perception result, so that the terminal device can regain the perception result of the target object based on the second perception signal received from the electronic device, the second perception signal reflected from the target object, and the position of the electronic device.

2. The electronic device according to claim 1, wherein The processing circuitry is further configured to: receiving the retrieved sensing result from the terminal device; and Based on the re-acquired perception results, determine whether it is necessary to collaborate with other electronic devices on the network device side to perceive the target object.

3. The electronic device according to claim 2, wherein The processing circuitry is further configured to: When it is determined that it is necessary to cooperate with other electronic devices to perform target object perception, a cooperative electronic device on the network device side that can cooperate to perform target object perception is determined by sending a cooperation request to the candidate electronic device on the network device side.

4. The electronic device according to claim 3, wherein The processing circuitry is further configured to: Clock synchronization is performed with a cooperating electronic device so that the electronic device can control the cooperating electronic device to perform synchronous signal transmission.

5. The electronic device according to claim 4, wherein The processing circuitry is further configured to: sending information related to the third perception signal to the cooperating electronic device, so that the cooperating electronic device can send the third perception signal; obtaining the location of the cooperating electronic device; generating a joint beamforming matrix according to the position of the target object based on the sensing result and the acquired position of the cooperative electronic device; as well as The generated joint beamforming matrix is ​​sent to the cooperative electronic device, so that the cooperative electronic device synchronously sends the third perception signal directionally toward the target object through beamforming according to the corresponding beamforming matrix in the joint beamforming matrix. The electronic device according to claim 4 , wherein: The processing circuitry is further configured to: sending information related to the third perception signal to the cooperating electronic device, so that the cooperating electronic device can send the third perception signal; and The target object position based on the sensing result is sent to the cooperative electronic device, so that the cooperative electronic device synchronously sends a third sensing signal to the target object through beamforming according to the target object position.

7. The electronic device according to claim 5 or 6, wherein: The processing circuitry is further configured to: Synchronously with the cooperative electronic device sending the third perception signal directionally toward the target object, the third perception signal is sent directionally toward the target object through beamforming, and the third perception signal is sent to the terminal device, so that the terminal device regains the perception result of the target object based on the third perception signal received from the electronic device, the third perception signal reflected from the target object, and the position of the electronic device.

8. The electronic device according to claim 5 or 6, wherein: The third perception signal is the channel state information reference signal CSI-RS.

9. The electronic device according to claim 3, wherein: The processing circuitry is further configured to: determining the number of cooperative electronic devices according to the resource margin of the electronic device; and The candidate electronic devices with the top number of sensing capability rankings are selected as the cooperative electronic devices.

10. The electronic device according to claim 9, wherein The sensing capability of the electronic device to be selected is determined according to the number of sensing antennas of the electronic device to be selected and the distance between the electronic device to be selected and the target object.

11. The electronic device according to claim 1, wherein The processing circuitry is further configured to: receiving sensing requirements from the terminal device; and Determine whether it is necessary to collaborate with the terminal device to perceive the target object based on the perception requirements.

12. The electronic device according to claim 11, wherein The processing circuitry is further configured to: When it is determined that cooperation with the terminal device is required to perform target object perception, the position of the electronic device is sent to the terminal device.

13. The electronic device according to claim 1, wherein At least one of the first perception signal and the second perception signal is a channel state information reference signal CSI-RS, and at least one of the obtained perception result and the re-obtained perception result is received through channel state information CSI.

14. An electronic device for a user equipment side in a wireless communication system, comprising a processing circuit system, wherein the processing circuit system is configured to: obtaining a perception result of the target object based on a first perception signal received from the base station, a first perception signal broadcast from the base station and reflected from the target object, and a position of the base station; Sending the sensing result to a base station, so that the base station sends a second sensing signal directionally toward the target object through beamforming according to the sensing result; as well as The perception result of the target object is re-obtained according to the second perception signal received from the base station, the second perception signal reflected from the target object, and the position of the base station.

15. The electronic device according to claim 14, wherein The processing circuitry is further configured to: The retrieved sensing result is sent to the base station so that the base station can determine whether it needs to cooperate with other base stations to sense the target object.

16. The electronic device according to claim 15, wherein The processing circuitry is further configured to: When the base station cooperates with other base stations to perceive the target object, the perception result of the target object is retrieved based on the third perception signal received from the base station, the third perception signal synchronously sent by the base station and other base stations toward the target object and reflected from the target object, and the position of the base station.

17. The electronic device according to claim 16, wherein: The third perception signal is the channel state information reference signal CSI-RS.

18. The electronic device according to claim 14, wherein The processing circuitry is further configured to: Before obtaining the perception result of the target object, a perception requirement is sent to the base station, so that the base station determines whether it is necessary to cooperate with the electronic device to perform target object perception according to the perception requirement.

19. The electronic device according to claim 18, wherein The processing circuitry is further configured to: In the case where the base station cooperates with the electronic device to sense the target object, the position of the base station is received from the base station.

20. The electronic device according to claim 14, wherein The first perception signal received from the base station and the first perception signal reflected from the target object are sent from the base station at the same time, and the second perception signal received from the base station and the second perception signal reflected from the target object are sent from the base station at the same time.

21. The electronic device according to claim 14, wherein At least one of the first perception signal and the second perception signal is a channel state information reference signal CSI-RS, and at least one of the obtained perception result and the re-obtained perception result is transmitted through the channel state information CSI.

22. A method for use in a wireless communication system, comprising: Broadcasting a first perception signal so that the terminal device obtains a perception result of the target object based on the first perception signal received from the base station, the first perception signal reflected from the target object, and the position of the base station; receiving the sensing result from a terminal device; as well as When sending the second perception signal to the terminal device, the second perception signal is directionally sent toward the target object through beamforming according to the received perception result, so that the terminal device can regain the perception result of the target object based on the second perception signal received from the base station, the second perception signal reflected from the target object, and the position of the base station.

23. A method for use in a wireless communication system, comprising: obtaining a perception result of the target object based on a first perception signal received from the base station, a first perception signal broadcast from the base station and reflected from the target object, and a position of the base station; Sending the sensing result to a base station, so that the base station sends a second sensing signal directionally toward the target object through beamforming according to the sensing result; as well as The perception result of the target object is re-obtained according to the second perception signal received from the base station, the second perception signal reflected from the target object, and the position of the base station.

24. A computer-readable storage medium storing one or more instructions, which, when executed by one or more processors of an electronic device, cause the electronic device to perform the method according to claim 22 or 23.

Images