A method and device for integrating wireless communication and wireless sensing
By sending wireless sensing signals at the switching points of the wireless communication signal and receiving echo signals, the problem of the influence of wireless sensing functions on the communication function is solved, efficient frequency band multiplexing of wireless perception and communication is realized, and the requirements for transceivers are reduced.
Patent Information
- Application Number
- CN202110076227.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-01-20
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2041-01-20
AI Technical Summary
In wireless perception and communication systems, the prior art is difficult to effectively reduce the impact of wireless perception functions on communication functions after the introduction of wireless perception functions, especially when multiplexing the same frequency band, the requirements for transceivers are high.
By sending a wireless sensing signal at a target time slot position related to the reception switching point of the wireless communication signal, and receiving the echo signal of the wireless sensing signal after the communication signal transmission time slot is completed, the wireless sensing signal is transmitted and received by the transceiver conversion timing of the communication signal, thereby reducing mutual influence.
Minimize the mutual influence of wireless communication signals and wireless perception signals when multiplexing in the same frequency band, reduce the requirements for transceivers, and improve the system's frequency resource utilization efficiency.
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Figure CN114867110B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of communication technologies, and in particular, to a method and apparatus for integrating wireless communication and wireless sensing. Background Art
[0002] The radar-based wireless sensing technology includes two methods: passive sensing and active sensing. In the passive sensing method, the sensor obtains the electromagnetic waves emitted (such as infrared) or reflected by the target object for sensing; in the active sensing method, the sensor sends electromagnetic waves, and after being reflected by the target object, the sensor receives the echo for sensing. Since the distance between the target object to be sensed and the sensor is not clear during sensing, the sensor needs to receive the reflected signal corresponding to the sensing signal in real time.
[0003] Currently, the integration of wireless sensing and communication mainly adopts the method of cross-band integration, that is, wireless sensing and wireless communication work in different working frequency bands respectively to reduce the influence between them. Usually, wireless sensing works in a higher frequency band, while wireless communication works in a lower frequency band. With the increasing scarcity of frequency resources, the working frequency band of wireless communication systems is getting higher and higher, and the trend of integrating them to work in the same frequency band is becoming more and more obvious. If they are simply arranged to work in the same frequency band, since the radar-based wireless sensing requires real-time reception of echo signals, it increases the requirements for the transceiver of the sensor and will also affect the communication system. Summary of the Invention
[0004] The present invention provides a method and apparatus for integrating wireless communication and wireless sensing to solve the problem that the introduction of the sensing function in the system will affect the communication function.
[0005] An embodiment of the present invention provides a method for integrating wireless communication and wireless sensing, including:
[0006] The communication device sends a wireless sensing signal at a target time slot position related to the switching point between signal transmission and signal reception of the wireless communication signal;
[0007] When the signal transmission time slot of the wireless communication signal ends, receive the echo signal corresponding to the wireless sensing signal.
[0008] Optionally, the target time slot position includes one of the following:
[0009] A time slot position with a duration of τ before the end time of the first time slot, where the first time slot is the last signal transmission time slot of the wireless communication signal;
[0010] A time slot position with a duration of τ after the start time of the second time slot, where the second time slot is the adjacent time slot after the last signal transmission time slot of the wireless communication signal;
[0011] A time slot position with a duration of τ that starts before the end of the first time slot and ends after the start of the second time slot;
[0012] where τ represents the duration of each transmission of the wireless sensing signal.
[0013] Optionally, when the communication device is a base station, the first time slot is a downlink time slot, and the second time slot is an idle time slot or an uplink time slot after the last signal transmission time slot of the wireless communication signal;
[0014] When the communication device is a terminal, the first time slot is an uplink time slot, and the second time slot is an idle time slot or a downlink time slot after the last signal transmission time slot of the wireless communication signal.
[0015] Optionally, the wireless sensing signal occupies all or part of the working frequency band corresponding to the target time slot position.
[0016] Optionally, sending the wireless sensing signal at the target time slot position related to the handover point between signal transmission and signal reception of the wireless communication signal includes:
[0017] Sending the wireless sensing signal N times at a target period within the sensing detection period;
[0018] where N×T1 < T;
[0019] T1 represents the target period, which is an integer multiple of the sub-frame time for sending the wireless communication signal, and T represents the sensing detection period.
[0020] Optionally, when the communication device operates in the full-duplex mode, the time for receiving the echo signal corresponding to the wireless sensing signal is;
[0021] Tr1 = T1 - τ
[0022] where Tr1 represents the time for receiving the echo signal, and τ represents the duration of each transmission of the wireless sensing signal.
[0023] Optionally, when the communication device operates in the time-division multiplexing mode, the time for receiving the echo signal corresponding to the wireless sensing signal is:
[0024] Tr2 = T1 - τ - Td1 - T0
[0025] Among them, Tr2 represents the time for receiving the echo signal, τ represents the duration of each transmission of the wireless sensing signal, Td1 represents the time of the transmission time slot of the wireless communication signal, and T0 represents the conversion time between the signal transmission and signal reception of the wireless communication signal.
[0026] Optionally, the method further includes:
[0027] Generating a first transmission control signal for transmitting the wireless sensing signal, where the first transmission control signal is used to control a first transmission channel to transmit the wireless sensing signal;
[0028] When the signal transmission time slot of the wireless communication signal ends, generating a first reception control signal for receiving an echo signal corresponding to the wireless sensing signal, where the first reception control signal is used to control a first reception channel to receive the echo signal.
[0029] Optionally, the transmitting the wireless sensing signal at a target time slot position related to a switching point between signal transmission and signal reception of the wireless communication signal includes:
[0030] At a target time slot position related to a switching point between signal transmission and signal reception of the wireless communication signal, transmitting the wireless sensing signal through the first transmission channel according to the first transmission control signal;
[0031] The receiving, when the signal transmission time slot of the wireless communication signal ends, an echo signal corresponding to the wireless sensing signal includes:
[0032] When the first reception channel is turned on, receiving, according to the first reception control signal, an echo signal corresponding to the wireless sensing signal through the first reception channel.
[0033] Optionally, the method further includes:
[0034] Generating a second transmission control signal for transmitting a wireless communication signal, where the second transmission control signal is used to control a second transmission channel to transmit the wireless communication signal;
[0035] After transmitting the wireless communication signal, generating a second reception control signal for receiving the wireless communication signal, where the second reception control signal is used to control a second reception channel to receive the wireless communication signal;
[0036] Before transmitting the wireless sensing signal, generating a third transmission control signal for transmitting the wireless sensing signal, where the third transmission control signal is used to control a third transmission channel to transmit the wireless sensing signal;
[0037] When the transmission of the wireless sensing signal is completed and the signal transmission time slot of the wireless communication signal ends, a third reception control signal for generating an echo signal corresponding to the wireless sensing signal is generated, and the third reception control signal is used to control a third reception channel to receive the echo signal.
[0038] Optionally, the method further includes:
[0039] When the second transmission channel is turned on, according to the second transmission control signal, a wireless communication signal is transmitted through the second transmission channel;
[0040] When the second reception channel is turned on, according to the second reception control signal, a wireless communication signal is received through the second reception channel.
[0041] Optionally, the transmitting the wireless sensing signal at a target time slot position related to a signal transmission and signal reception switching point of the wireless communication signal includes:
[0042] When the third transmission channel is turned on, according to the third transmission control signal, at a target time slot position related to a signal transmission and signal reception switching point of the wireless communication signal, the wireless sensing signal is transmitted through the third transmission channel;
[0043] Receiving an echo signal corresponding to the wireless sensing signal when the signal transmission time slot of the wireless communication signal ends includes:
[0044] When the third reception channel is turned on, according to the third reception control signal, an echo signal corresponding to the wireless sensing signal is received through the third reception channel.
[0045] Optionally, before transmitting the wireless sensing signal at a target time slot position related to a signal transmission and signal reception switching point of the wireless communication signal, the method further includes:
[0046] Generating a wireless sensing signal.
[0047] Optionally, before transmitting the wireless sensing signal at a target time slot position related to a signal transmission and signal reception switching point of the wireless communication signal, the method further includes:
[0048] Generating a wireless communication signal.
[0049] An embodiment of the present invention provides a device for fusing wireless communication and wireless sensing, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, the following steps are implemented:
[0050] Transmit a wireless sensing signal at a target time slot position related to the handover point between signal transmission and signal reception of a wireless communication signal;
[0051] When the signal transmission time slot of the wireless communication signal ends, receive an echo signal corresponding to the wireless sensing signal.
[0052] Optionally, the target time slot position includes one of the following:
[0053] A time slot position with a duration of τ before the end time of the first time slot, where the first time slot is the last signal transmission time slot of the wireless communication signal;
[0054] A time slot position with a duration of τ after the start time of the second time slot, where the second time slot is the adjacent time slot after the last signal transmission time slot of the wireless communication signal;
[0055] A time slot position with a duration of τ that starts before the end time of the first time slot and ends after the start time of the second time slot;
[0056] where τ represents the duration of each transmission of the wireless sensing signal.
[0057] Optionally, when the communication device is a base station, the first time slot is a downlink time slot, and the second time slot is an idle time slot or an uplink time slot after the last signal transmission time slot of the wireless communication signal;
[0058] When the communication device is a terminal, the first time slot is an uplink time slot, and the second time slot is an idle time slot or a downlink time slot after the last signal transmission time slot of the wireless communication signal.
[0059] Optionally, the wireless sensing signal occupies all or part of the working frequency band corresponding to the target time slot position.
[0060] Optionally, the transmitting of the wireless sensing signal at the target time slot position related to the handover point between signal transmission and signal reception of the wireless communication signal specifically includes:
[0061] During a sensing detection period, transmit the wireless sensing signal N times at a target period;
[0062] where N×T1 < T;
[0063] T1 represents the target period, which is an integer multiple of the sub-frame time for transmitting the wireless communication signal, and T represents the sensing detection period.
[0064] Optionally, when the communication device operates in a full-duplex mode, the time for receiving the echo signal corresponding to the wireless sensing signal is;
[0065] Tr1 = T1 - τ
[0066] Where Tr1 represents the time to receive the echo signal, and τ represents the duration of each transmission of the wireless sensing signal.
[0067] Optionally, when the communication device operates in the time-division multiplexing mode, the time to receive the echo signal corresponding to the wireless sensing signal is:
[0068] Tr2 = T1 - τ - Td1 - T0
[0069] Where Tr2 represents the time to receive the echo signal, τ represents the duration of each transmission of the wireless sensing signal, Td1 represents the time of the transmission time slot of the wireless communication signal, and T0 represents the conversion time between the signal transmission and signal reception of the wireless communication signal.
[0070] Optionally, when the processor executes the computer program, it is further configured to implement the following steps:
[0071] Generate a first transmission control signal for transmitting the wireless sensing signal, where the first transmission control signal is used to control a first transmission channel to transmit the wireless sensing signal;
[0072] When the signal transmission time slot of the wireless communication signal ends, generate a first reception control signal for receiving the echo signal corresponding to the wireless sensing signal, where the first reception control signal is used to control a first reception channel to receive the echo signal.
[0073] Optionally, transmitting the wireless sensing signal at a target time slot position related to the switching point between the signal transmission and signal reception of the wireless communication signal specifically includes:
[0074] At a target time slot position related to the switching point between the signal transmission and signal reception of the wireless communication signal, transmit the wireless sensing signal through the first transmission channel according to the first transmission control signal;
[0075] Receiving the echo signal corresponding to the wireless sensing signal when the signal transmission time slot of the wireless communication signal ends specifically includes:
[0076] When the first reception channel is turned on, receive the echo signal corresponding to the wireless sensing signal through the first reception channel according to the first reception control signal.
[0077] Optionally, when the processor executes the computer program, it is further configured to implement the following steps:
[0078] Generate a second transmission control signal for transmitting a wireless communication signal, where the second transmission control signal is used to control a second transmission channel to transmit the wireless communication signal;
[0079] After the wireless communication signal is transmitted, generate a second reception control signal for receiving the wireless communication signal, where the second reception control signal is used to control a second reception channel to receive the wireless communication signal;
[0080] Before transmitting a wireless sensing signal, generate a third transmission control signal for transmitting the wireless sensing signal, where the third transmission control signal is used to control a third transmission channel to transmit the wireless sensing signal;
[0081] When the transmission of the wireless sensing signal is completed and the signal transmission time slot of the wireless communication signal ends, generate a third reception control signal for receiving an echo signal corresponding to the wireless sensing signal, where the third reception control signal is used to control a third reception channel to receive the echo signal.
[0082] Optionally, when the processor executes the computer program, it is further used to implement the following steps:
[0083] When the second transmission channel is turned on, transmit the wireless communication signal through the second transmission channel according to the second transmission control signal;
[0084] When the second reception channel is turned on, receive the wireless communication signal through the second reception channel according to the second reception control signal.
[0085] Optionally, the step of transmitting the wireless sensing signal at a target time slot position related to a signal transmission and signal reception switching point of the wireless communication signal specifically includes:
[0086] When the third transmission channel is turned on, transmit the wireless sensing signal through the third transmission channel at a target time slot position related to a signal transmission and signal reception switching point of the wireless communication signal according to the third transmission control signal;
[0087] When the signal transmission time slot of the wireless communication signal ends, the step of receiving an echo signal corresponding to the wireless sensing signal specifically includes:
[0088] When the third reception channel is turned on, receive the echo signal corresponding to the wireless sensing signal through the third reception channel according to the third reception control signal.
[0089] Optionally, before transmitting the wireless sensing signal at a target time slot position related to a signal transmission and signal reception switching point of the wireless communication signal, when the processor executes the computer program, it is further used to implement the following steps:
[0090] Generate a wireless sensing signal.
[0091] Optionally, at a target time slot position related to a switching point between signal transmission and signal reception of a wireless communication signal, before transmitting the wireless sensing signal, when the processor executes the computer program, it is further configured to implement the following steps:
[0092] Generate a wireless communication signal.
[0093] An embodiment of the present invention provides a device for integrating wireless communication and wireless sensing, including:
[0094] A signal transceiver unit, configured to transmit a wireless sensing signal at a target time slot position related to a switching point between signal transmission and signal reception of a wireless communication signal;
[0095] Receive an echo signal corresponding to the wireless sensing signal when the signal transmission time slot of the wireless communication signal ends.
[0096] Optionally, the target time slot position includes one of the following:
[0097] A time slot position with a duration of τ before the end moment of the first time slot, where the first time slot is the last signal transmission time slot of the wireless communication signal;
[0098] A time slot position with a duration of τ after the start moment of the second time slot, where the second time slot is the adjacent time slot after the last signal transmission time slot of the wireless communication signal;
[0099] A time slot position with a duration of τ that starts before the end moment of the first time slot and ends after the start moment of the second time slot;
[0100] Where τ represents the duration of each transmission of the wireless sensing signal.
[0101] Optionally, when the communication device is a base station, the first time slot is a downlink time slot, and the second time slot is an idle time slot or an uplink time slot after the last signal transmission time slot of the wireless communication signal;
[0102] When the communication device is a terminal, the first time slot is an uplink time slot, and the second time slot is an idle time slot or a downlink time slot after the last signal transmission time slot of the wireless communication signal.
[0103] Optionally, the wireless sensing signal occupies all or part of the working frequency band corresponding to the target time slot position.
[0104] Optionally, the signal transceiver unit is specifically configured to:
[0105] During the sensing detection period, N wireless sensing signals are sent at a target period;
[0106] where N×T1 < T;
[0107] T1 represents the target period, which is an integer multiple of the sub-frame time for sending the wireless communication signal, and T represents the sensing detection period.
[0108] Optionally, when the communication device operates in the full-duplex mode, the time for receiving the echo signal corresponding to the wireless sensing signal is;
[0109] Tr1 = T1 - τ
[0110] where Tr1 represents the time for receiving the echo signal, and τ represents the duration of each transmission of the wireless sensing signal.
[0111] Optionally, when the communication device operates in the time-division multiplexing mode, the time for receiving the echo signal corresponding to the wireless sensing signal is:
[0112] Tr2 = T1 - τ - Td1 - T0
[0113] where Tr2 represents the time for receiving the echo signal, τ represents the duration of each transmission of the wireless sensing signal, Td1 represents the time of the transmission time slot of the wireless communication signal, and T0 represents the conversion time between signal transmission and signal reception of the wireless communication signal.
[0114] Optionally, the device further includes:
[0115] A first signal transceiver controller, configured to generate a first transmission control signal for transmitting the wireless sensing signal, and the first transmission control signal is used to control a first transmission channel to transmit the wireless sensing signal;
[0116] It is further configured to generate a first reception control signal for receiving the echo signal corresponding to the wireless sensing signal when the signal transmission time slot of the wireless communication signal ends, and the first reception control signal is used to control a first reception channel to receive the echo signal.
[0117] Optionally, the signal transceiver unit includes:
[0118] A first time-division duplex transceiver unit, configured to transmit the wireless sensing signal through the first transmission channel according to the first transmission control signal at a target time slot position related to the switching point between signal transmission and signal reception of the wireless communication signal;
[0119] When the first receiving channel is enabled, according to the first receiving control signal, the echo signal corresponding to the wireless sensing signal is received through the first receiving channel.
[0120] Optionally, the device further includes:
[0121] A second signal transceiver controller, configured to generate a second transmission control signal for transmitting a wireless communication signal, where the second transmission control signal is used to control a second transmission channel to transmit the wireless communication signal;
[0122] After the wireless communication signal is transmitted, generate a second receiving control signal for receiving the wireless communication signal, where the second receiving control signal is used to control a second receiving channel to receive the wireless communication signal;
[0123] Before transmitting the wireless sensing signal, generate a third transmission control signal for transmitting the wireless sensing signal, where the third transmission control signal is used to control a third transmission channel to transmit the wireless sensing signal;
[0124] When the wireless sensing signal transmission is completed and the signal transmission time slot of the wireless communication signal ends, generate a third receiving control signal for receiving the echo signal corresponding to the wireless sensing signal, where the third receiving control signal is used to control a third receiving channel to receive the echo signal.
[0125] Optionally, the signal transceiver unit includes:
[0126] A second time-division duplex transceiver unit, configured to transmit a wireless communication signal through the second transmission channel according to the second transmission control signal when the second transmission channel is enabled;
[0127] When the second receiving channel is enabled, receive the wireless communication signal through the second receiving channel according to the second receiving control signal.
[0128] Optionally, the signal transceiver unit further includes:
[0129] A simultaneous and co-frequency full-duplex transceiver unit, configured to transmit the wireless sensing signal through the third transmission channel at a target time slot position related to the switching point between signal transmission and signal reception of the wireless communication signal according to the third transmission control signal when the third transmission channel is enabled;
[0130] When the third receiving channel is enabled, receive the echo signal corresponding to the wireless sensing signal through the third receiving channel according to the third receiving control signal.
[0131] Optionally, the device further includes:
[0132] A wireless sensing signal generation unit for generating a wireless sensing signal.
[0133] Optionally, the device further includes:
[0134] A wireless communication signal generation unit for generating a wireless communication signal.
[0135] An embodiment of the present invention provides a processor-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above method for fusing wireless communication and wireless sensing are implemented.
[0136] The beneficial effects of the above technical solution of the present invention are:
[0137] In the embodiment of the present invention, by using the transceiver conversion timing of the wireless communication signal, the wireless sensing signal is sent, and after the wireless communication signal transmission ends, the reception of the echo signal corresponding to the wireless sensing signal is started, which can minimize the mutual influence between the wireless communication signal and the wireless sensing signal when they are reused in the same frequency band and reduce the requirements for the transceiver. Description of the Drawings
[0138] Figure 1 A schematic flowchart showing the method for fusing wireless communication and wireless sensing according to an embodiment of the present invention;
[0139] Figure 2 A schematic diagram showing the position of the wireless sensing signal transmission when the communication device is a base station;
[0140] Figure 3 A schematic diagram showing the position of the wireless sensing signal transmission when the communication device is a base station;
[0141] Figure 4 A schematic diagram showing the position of the wireless sensing signal transmission when the communication device is a base station;
[0142] Figure 5 A schematic diagram showing the position of the wireless sensing signal transmission when the communication device is a terminal;
[0143] Figure 6 A schematic diagram showing the position of the wireless sensing signal transmission when the communication device is a terminal;
[0144] Figure 7 A schematic diagram showing the position of the wireless sensing signal transmission when the communication device is a terminal;
[0145] Figures 8a - 8c A schematic diagram showing the working frequency band for transmitting the wireless sensing signal according to an embodiment of the present invention;
[0146] Figure 9 A schematic diagram showing the frame format according to an embodiment of the present invention;
[0147] Figure 10 One of the schematic structural diagrams of the device for integrating wireless communication and wireless sensing according to an embodiment of the present invention;
[0148] Figure 11 Another schematic structural diagram of the device for integrating wireless communication and wireless sensing according to an embodiment of the present invention;
[0149] Figure 12 Another schematic diagram of the device for integrating wireless communication and wireless sensing according to an embodiment of the present invention. Detailed implementation manners
[0150] To make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help a comprehensive understanding of the embodiments of the present invention. Therefore, those skilled in the art should clearly understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. In addition, descriptions of known functions and structures are omitted for clarity and conciseness.
[0151] It should be understood that the term "one embodiment" or "an embodiment" mentioned throughout the specification means that a specific feature, structure or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, the appearances of the phrase "in one embodiment" or "in an embodiment" throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in any suitable manner in one or more embodiments.
[0152] In various embodiments of the present invention, it should be understood that the order numbers of the following processes do not mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
[0153] In addition, the terms "system" and "network" are often used interchangeably herein.
[0154] In the embodiments of the present invention, the term "and / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.
[0155] In the embodiments of the present application, the term "a plurality" refers to two or more, and other quantifiers are similar.
[0156] Specifically, an embodiment of the present invention provides a method for integrating wireless communication and wireless sensing to solve the problem that the introduction of a sensing function in a system will affect the communication function.
[0157] As Figure 1 shown, an embodiment of the present invention provides a method for integrating wireless communication and wireless sensing, which specifically includes the following steps:
[0158] Step 101: The communication device sends a wireless sensing signal at a target time slot position related to the switching point between signal transmission and signal reception of the wireless communication signal.
[0159] In this embodiment, the wireless sensing signal can be used to sense information such as the distance and image of a target object. The target object can be a communication device such as a base station or a terminal, or other objects such as a vehicle or a building. The communication device can be a base station or a terminal.
[0160] The target time slot positions at which the communication device does not simultaneously send the wireless sensing signal are different. Taking the communication device as a base station as an example, the base station sends the wireless sensing signal at a position near the switching point between downlink transmission and uplink reception of the wireless communication signal; taking the communication device as a terminal as an example, the terminal sends the wireless sensing signal at a position near the switching point between uplink transmission and downlink reception of the wireless communication signal. The communication device can determine whether there is a target object and other sensing parameters of the target object by sending the wireless sensing signal.
[0161] Step 102: When the signal transmission time slot of the wireless communication signal ends, receive the echo signal corresponding to the wireless sensing signal.
[0162] After the signal transmission time slot of the wireless communication signal ends, the communication device starts to receive the echo signal corresponding to the wireless sensing signal. Among them, after the communication device sends the wireless sensing signal, if there is a target object, the target object reflects the echo signal, and the communication device can perform sensing processing based on the echo signal.
[0163] When the communication device is a base station, the base station starts to receive the echo signal corresponding to the wireless sensing signal after the downlink transmission time slot of the wireless communication signal ends; when the communication device is a terminal, the terminal starts to receive the echo signal corresponding to the wireless sensing signal after the uplink transmission time slot of the wireless communication signal ends.
[0164] In an embodiment of the present invention, by using the transceiver conversion timing of the wireless communication signal, the wireless sensing signal is transmitted, and after the wireless communication signal transmission ends, the reception of the echo signal corresponding to the wireless sensing signal is started, which can minimize the mutual influence between the wireless communication signal and the wireless sensing signal when they are reused in the same frequency band and reduce the requirements for the transceiver.
[0165] Specifically, the target time slot position may include one of the following:
[0166] A time slot position with a duration of τ before the end moment of the first time slot, where the first time slot is the last signal transmission time slot of the wireless communication signal;
[0167] A time slot position with a duration of τ after the start moment of the second time slot, where the second time slot is the adjacent time slot after the last signal transmission time slot of the wireless communication signal;
[0168] A time slot position with a duration of τ that starts before the end moment of the first time slot and ends after the start moment of the second time slot; where τ represents the duration of each transmission of the wireless sensing signal.
[0169] Wherein, when the communication device is a base station, the first time slot is a downlink time slot, and the second time slot is an idle time slot or an uplink time slot after the last signal transmission time slot of the wireless communication signal; when the communication device is a terminal, the first time slot is an uplink time slot, and the second time slot is an idle time slot or a downlink time slot after the last signal transmission time slot of the wireless communication signal.
[0170] In this embodiment, the target time slot position is a time interval. The adjacent time slot after the last signal transmission time slot of the wireless communication signal may be an idle time slot or a reception time slot. Wherein, when the communication device is a base station, the adjacent time slot may be an idle time slot or an uplink time slot; when the communication device is a terminal, the adjacent time slot may be an idle time slot or a downlink time slot. When the target time slot position is a time slot position with a duration of τ that starts before the end moment of the first time slot and ends after the start moment of the second time slot, the specific time of the duration τ before the end moment of the first time slot and the specific time after the start moment of the second time slot are not limited. For example: the duration τ may include: starting from at the start before the end moment of the first time slot, and ending at at the end after the start moment of the second time slot. That is, the specific time of the duration τ before the end moment of the first time slot and the time after the start moment of the second time slot may be equal or unequal.
[0171] Taking the communication device as a base station as an example:
[0172] The target time slot position may be: in the frame structure, at the tail of the last downlink transmission time slot of the wireless communication signal, the time slot position corresponding to the time interval with a duration of τ, as shown in (a1) and (a2) in Figure 2 . Among them, the adjacent time slot after the last signal transmission time slot (i.e., the last downlink time slot) of the wireless communication signal in (a1) is an uplink time slot, and the adjacent time slot in (a2) is an idle time slot.
[0173] Alternatively, the target time slot position may be: at the head of the adjacent time slot after the last downlink transmission time slot of the wireless communication signal, the time slot position corresponding to the time interval with a duration of τ, as shown in (b1) and (b2) in Figure 3 . Among them, the adjacent time slot after the last signal transmission time slot (i.e., the last downlink time slot) of the wireless communication signal in (b1) is an uplink time slot, and the adjacent time slot in (b2) is an idle time slot.
[0174] Alternatively, the target time slot position may be across the end moment of the first time slot and the start moment of the second time slot, and the time slot position corresponding to the time interval with a duration of τ, as shown in (c1) and (c2) in Figure 4 . Among them, the adjacent time slot after the last signal transmission time slot (i.e., the last downlink time slot) of the wireless communication signal in (c1) is an uplink time slot, and the adjacent time slot in (c2) is an idle time slot.
[0175] Taking the communication device as a terminal as an example:
[0176] The target time slot position may be: in the frame structure, at the tail of the last uplink transmission time slot of the wireless communication signal, the time slot position corresponding to the time interval with a duration of τ, as shown in (a1) and (a2) in Figure 5 . Among them, the adjacent time slot after the last signal transmission time slot (i.e., the last uplink time slot) of the wireless communication signal in (a1) is a downlink time slot, and the adjacent time slot in (a2) is an idle time slot.
[0177] Alternatively, the target time slot position may be: at the head of the adjacent time slot after the last uplink transmission time slot of the wireless communication signal, the time slot position corresponding to the time interval with a duration of τ, as shown in (b1) and (b2) in Figure 6 . Among them, the adjacent time slot after the last signal transmission time slot (i.e., the last uplink time slot) of the wireless communication signal in (b1) is a downlink time slot, and the adjacent time slot in (b2) is an idle time slot.
[0178] Alternatively, the target time slot position may be a time slot position corresponding to a time interval that spans the end time of the first time slot and the start time of the second time slot and has a duration of τ, as shown in (c1) and (c2) of Figure 7 . In (c1), the adjacent time slot after the last signal transmission time slot (i.e., the last uplink time slot) of the wireless communication signal is a downlink time slot, and in (c2), the adjacent time slot is an idle time slot. Figure 7 As shown in (c1) and (c2) of Figure 7 , where the adjacent time slot after the last signal transmission time slot (i.e., the last uplink time slot) of the wireless communication signal in (c1) is a downlink time slot, and the adjacent time slot in (c2) is an idle time slot.
[0179] According to Figure 3 , Figure 4 , Figure 6 and Figure 7 , when the target time slot position is a time slot position with a duration of τ after the start time of the second time slot, or when the target time slot position is a time slot position that starts before the end time of the first time slot and ends after the start time of the second time slot and has a duration of τ, when the communication device sends the wireless sensing signal, the communication device needs to perform both transmission and reception operations simultaneously, that is, the communication device has the function of simultaneous transmission and reception on the same frequency band. Specifically, the communication device may adopt a full-duplex scheme or a multi-transmit receive point (TRP) cooperative sensing scheme.
[0180] Furthermore, the wireless sensing signal occupies all or part of the working frequency band corresponding to the target time slot position. When the wireless sensing signal occupies part of the working frequency band corresponding to the target time slot position, a wireless communication signal may or may not be sent on the remaining frequency band of the target time slot. When the wireless sensing signal occupies part of the working frequency band corresponding to the target time slot position and a wireless communication signal is sent on the frequency band other than the part of the working frequency band, it is possible to enable the wireless sensing signal and the wireless communication signal to work using the same time-frequency division multiplexing, and the frequency resources can be utilized to the greatest extent.
[0181] Specifically, sending the wireless sensing signal at the target time slot position related to the switching point between signal transmission and signal reception of the wireless communication signal includes one of the following:
[0182] (1) Sending the wireless sensing signal on all of the working frequency band corresponding to the target time slot position.
[0183] In this embodiment, when the communication device sends the wireless sensing signal, it may only send the wireless sensing signal on the working frequency band corresponding to the target time slot position. As shown in Figure 8a , the wireless sensing signal occupies the entire frequency band. When the communication device is a base station, the time slot in Figure 8a is a downlink time slot, and when the communication device is a terminal, the time slot in Figure 8a Figure 8a As shown, the wireless sensing signal occupies the entire frequency band. When the communication device is a base station, the time slot in Figure 8a is a downlink time slot, and when the communication device is a terminal, the time slot in Figure 8a Figure 8a the time slot in Figure 8a is a downlink time slot, and when the communication device is a terminal, the time slot in Figure 8a Figure 8aThe time slot therein is an uplink time slot, Figure 8a The shaded part therein is the frequency band for transmitting the wireless sensing signal. At this time, the wireless communication signal can be transmitted in Figure 8a the frequency band before the working frequency band shown in.
[0184] (2) Transmit the wireless sensing signal in a partial working frequency band corresponding to the target time slot position.
[0185] In this embodiment, when the communication device transmits the wireless sensing signal, it can transmit the wireless sensing signal in a partial frequency band of the working frequency band corresponding to the target time slot position. As Figure 8b shown, the wireless sensing signal occupies a partial frequency band. When the communication device is a base station, Figure 8b the time slot therein is a downlink time slot. When the communication device is a terminal, Figure 8b the time slot therein is an uplink time slot, Figure 8b the shaded part therein is the frequency band for transmitting the wireless sensing signal. In Figure 8b the wireless sensing signal does not perform frequency division multiplexing with the wireless communication signal.
[0186] (3) Transmit the wireless sensing signal and the wireless communication signal in the working frequency band corresponding to the target time slot position in a frequency division multiplexing manner.
[0187] In this embodiment, when the communication device transmits the wireless sensing signal, it can transmit the wireless sensing signal in a partial frequency band of the working frequency band corresponding to the target time slot position, and transmit the wireless communication signal in other partial frequency bands of the working frequency band. As Figure 8c shown, the wireless sensing signal occupies a partial frequency band, and the wireless communication signal occupies the remaining partial frequency band. When the communication device is a base station, Figure 8c the time slot therein is a downlink time slot. When the communication device is a terminal, Figure 8c the time slot therein is an uplink time slot, Figure 8c the shaded part therein is the partial frequency band for transmitting the wireless sensing signal, and the remaining blank part of this working frequency band is the frequency band part for transmitting the wireless communication signal. In Figure 8c the wireless sensing signal performs frequency division multiplexing with the wireless communication signal.
[0188] This embodiment integrates wireless sensing and wireless communication and works using the same working frequency band, which can maximize the utilization of frequency resources.
[0189] Furthermore, transmitting the wireless sensing signal at a target time slot position related to the switching point between signal transmission and signal reception of the wireless communication signal includes:
[0190] During the sensing detection period, N wireless sensing signals are sent at the target period;
[0191] where N×T1 < T;
[0192] T1 represents the target period, which is an integer multiple of the sub-frame time for sending the wireless communication signal, and T represents the sensing detection period.
[0193] In this embodiment, during the sensing detection period, sending N wireless sensing signals at the target period can be the same wireless sensing signal or different sensing signals to achieve deblurring and / or scanning the environment.
[0194] Specifically, taking the communication device as a base station as an example, the frame formats of the wireless sensing signal and the wireless communication signal can be as Figure 9 shown. The wireless sensing signal can be generated by signal generation methods widely used in radar systems, such as chirp, phase shift keying modulation, etc. During the sensing detection period, the wireless sensing signal is sent N times at the target period T1, and the duration of each send is τ, N×T1 < T. By setting the double periods (sensing detection period and target period) for sending the wireless sensing signal, deblurring can be achieved, and sending the wireless sensing signal multiple times can improve the sensing accuracy. It can avoid the situation that when setting a single period, if no echo signal is received during the period of sending the wireless sensing signal and an echo signal is received in the next period, it is impossible to know the sending position of the echo signal.
[0195] As an alternative embodiment, when the communication device operates in the full-duplex mode, the time for receiving the echo signal corresponding to the wireless sensing signal is;
[0196] Tr1 = T1 - τ
[0197] where Tr1 represents the time for receiving the echo signal, τ represents the duration of each send of the wireless sensing signal, and the conversion time between signal sending and signal receiving of the wireless communication signal is zero.
[0198] As another alternative embodiment, when the communication device operates in the time-division multiplexing mode (Time Division Duplex, TDD), the time for receiving the echo signal corresponding to the wireless sensing signal is:
[0199] Tr2 = T1 - τ - Td1 - T0
[0200] where Tr2 represents the time for receiving the echo signal, τ represents the duration of each send of the wireless sensing signal, Td1 represents the time of the sending time slot of the wireless communication signal, and T0 represents the conversion time between signal sending and signal receiving of the wireless communication signal.
[0201] Among them, the time window for receiving the echo signal corresponding to the wireless sensing signal can be determined by the sensing receiver of the communication device according to the sensing detection range. The sensing receiver of the communication device detects the echo signal during the time of receiving the echo signal, and determines the arrival time, phase, intensity, etc. of the echo signal through detection algorithms such as sliding filtering of the local wireless sensing signal and the echo signal, so as to sense information such as the target position, attitude, and image of the target object.
[0202] The following uses specific embodiments to respectively illustrate the implementation process of the method for fusing wireless communication and wireless sensing when the communication device is a base station, and the implementation process of the method for fusing wireless communication and wireless sensing when the communication device is a terminal.
[0203] Example 1: The base station sends a wireless sensing signal.
[0204] The base station sends a sensing signal near the handover point from downlink transmission to uplink reception, and after the end of its downlink transmission, starts to receive the echo signal corresponding to the wireless sensing signal. Among them, near the handover point from downlink transmission to uplink reception means that in the frame structure, the tail of the last time slot of downlink transmission (as Figure 2 shown), the head of the time slot after the last time slot of downlink transmission (including the two cases where it is an idle time slot or an uplink time slot) (as Figure 3 shown), or straddling the tail of the last time slot and the head of the time slot after it (as Figure 4 shown).
[0205] Specifically, after the end of the downlink transmission, it means after the end of the downlink time slot corresponding to the wireless communication signal transmission. For the two wireless sensing signal transmission schemes at the tail of the last time slot of downlink transmission and straddling the tail of the last time slot and the head of the time slot after it, the base station needs to perform both transmission and reception operations, that is, the base station has the function of simultaneous transmission and reception on the same frequency band. Specifically, the base station can adopt a full-duplex scheme or a multi-TRP collaborative sensing scheme.
[0206] When sending a wireless sensing signal, the wireless sensing signal can be sent only on the working frequency band corresponding to the target time slot position, occupying all or part of the working frequency band; or a wireless communication signal and a wireless sensing signal can be sent simultaneously, and the two adopt a frequency division multiplexing method, as Figures 8a - 8c shown.
[0207] Example 2: The terminal sends a wireless sensing signal.
[0208] The terminal sends a wireless sensing signal near the handover point from uplink transmission to downlink reception, and after the end of its uplink transmission, starts to receive the echo signal corresponding to the wireless sensing signal.
[0209] Among them, the vicinity of the handover point from uplink transmission to downlink reception refers to, in the frame structure, the tail of the last time slot of the uplink transmission (as shown in Figure 5 ), the head of the time slot after the last time slot of the uplink transmission (including the cases where it is an idle time slot or a downlink time slot), as shown in Figure 6 ), or spanning the tail of the last time slot and the head of the time slot after it, as shown in Figure 7 ).
[0210] Specifically, after the uplink transmission ends, it means after the uplink time slot corresponding to the wireless communication signal transmission ends. When the wireless sensing signal is transmitted in the time slot after the last time slot of the uplink transmission, the terminal needs to perform both transmission and reception operations simultaneously, that is, the terminal has the function of simultaneous transmission and reception on the same frequency band.
[0211] When transmitting the wireless sensing signal, the wireless sensing signal can be only transmitted on the working frequency band corresponding to the target time slot position, occupying all or part of the working frequency band; or the wireless communication signal and the wireless sensing signal can be transmitted simultaneously, and the two adopt the frequency division multiplexing method, as shown in Figures 8a - 8c ).
[0212] Optionally, before transmitting the wireless sensing signal at the target time slot position related to the handover point between the signal transmission and signal reception of the wireless communication signal, the method further includes: generating the wireless sensing signal. Before transmitting the wireless sensing signal at the target time slot position related to the handover point between the signal transmission and signal reception of the wireless communication signal, the method can also include: generating the wireless communication signal.
[0213] As an alternative embodiment, the method may further include: generating a first transmission control signal for transmitting the wireless sensing signal, and the first transmission control signal is used to control the first transmission channel to transmit the wireless sensing signal; in the case where the signal transmission time slot of the wireless communication signal ends, generating a first reception control signal for receiving the echo signal corresponding to the wireless sensing signal, and the first reception control signal is used to control the first reception channel to receive the echo signal. Specifically, transmitting the wireless sensing signal at the target time slot position related to the handover point between the signal transmission and signal reception of the wireless communication signal may include: at the target time slot position related to the handover point between the signal transmission and signal reception of the wireless communication signal, according to the first transmission control signal, transmitting the wireless sensing signal through the first transmission channel. Receiving the echo signal corresponding to the wireless sensing signal in the case where the signal transmission time slot of the wireless communication signal ends may include: in the case where the first reception channel is turned on, according to the first reception control signal, receiving the echo signal corresponding to the wireless sensing signal through the first reception channel.
[0214] This embodiment is applied to a scenario where the communication device sends a wireless sensing signal at a time slot position with a duration of τ before the end of the first time slot. The communication device sends the wireless communication signal and the wireless sensing signal through the first transmission channel. After the wireless communication signal transmission time slot (downlink time slot or uplink time slot) ends, the first transmission channel can be turned off and the first reception channel can be started, regardless of whether the time slot after the transmission time slot is a reception time slot (whether it is an uplink time slot or a downlink time slot) or an idle time slot. After the communication device sends out the wireless communication signal and the wireless sensing signal, a conversion between the first transmission channel and the first reception channel is performed. When the first reception channel is turned on, an echo signal corresponding to the wireless sensing signal is received. Specifically, the wireless sensing signal is located at the tail of the last transmission time slot of the wireless communication signal. It can occupy the entire working frequency band, or only occupy a part of the working frequency band, or can also perform frequency division multiplexing with the wireless communication signal on the same working frequency band.
[0215] To support the wireless sensing signal to be sent in a subsequent time slot after the last transmission time slot of the wireless communication signal, as another optional embodiment, the method may further include: generating a second transmission control signal for sending the wireless communication signal, where the second transmission control signal is used to control a second transmission channel to send the wireless communication signal; after the wireless communication signal is sent, generating a second reception control signal for receiving the wireless communication signal, where the second reception control signal is used to control a second reception channel to receive the wireless communication signal; before sending the wireless sensing signal, generating a third transmission control signal for sending the wireless sensing signal, where the third transmission control signal is used to control a third transmission channel to send the wireless sensing signal; when the wireless sensing signal is sent and the signal transmission time slot of the wireless communication signal ends, generating a third reception control signal for receiving the echo signal corresponding to the wireless sensing signal, where the third reception control signal is used to control a third reception channel to receive the echo signal.
[0216] When the second transmission channel is enabled, the communication device transmits a wireless communication signal through the second transmission channel according to the second transmission control signal; when the second reception channel is enabled, the communication device receives a wireless communication signal through the second reception channel according to the second reception control signal. Specifically, transmitting a wireless sensing signal at a target time slot position related to a signal transmission and signal reception switching point of the wireless communication signal may include: when the third transmission channel is enabled, according to the third transmission control signal, at the target time slot position related to the signal transmission and signal reception switching point of the wireless communication signal, transmitting the wireless sensing signal through the third transmission channel; when the signal transmission time slot of the wireless communication signal ends, receiving an echo signal corresponding to the wireless sensing signal may include: when the third reception channel is enabled, according to the third reception control signal, receiving the echo signal corresponding to the wireless sensing signal through the third reception channel.
[0217] In this embodiment, the communication device activates the second transmission channel before transmitting the wireless sensing signal. When the second transmission channel is enabled, the communication device transmits the wireless communication signal through the second transmission channel, performs the conversion between the second transmission channel and the second reception channel, and when the second reception channel is enabled, the communication device can receive a wireless communication signal through the second reception channel.
[0218] The communication device activates the third transmission channel before transmitting the wireless sensing signal. When the third transmission channel is enabled, the communication device transmits the wireless sensing signal through the third transmission channel. After the wireless sensing signal is transmitted, the third transmission channel can be turned off (or not). After the transmission time slot (downlink time slot or uplink time slot) of the wireless communication signal ends, the third reception channel is activated, and the communication device receives the echo signal corresponding to the wireless sensing signal through the third reception channel. After receiving the echo signal, the third reception channel can be turned off (or not). Specifically, the wireless sensing signal may be located at the tail of the last transmission time slot of the wireless communication signal, at the head of a subsequent time slot after the last transmission time slot of the wireless communication signal, or span the tail of the last transmission time slot and the head of a subsequent time slot of the wireless communication signal. It may occupy the entire working frequency band, or only occupy a part of the working frequency band, or may perform frequency division multiplexing with the communication signal on the same working frequency band.
[0219] In the embodiment of the present invention, by using the transceiver conversion opportunity of the wireless communication signal to transmit the wireless sensing signal and starting to receive the echo signal corresponding to the wireless sensing signal after the wireless communication signal is transmitted, the mutual influence between the wireless communication signal and the wireless sensing signal during co-frequency reuse can be minimized, and the requirements for the transceiver can be reduced.
[0220] The technical solutions provided by the embodiments of this application can be applied to multiple systems, especially 5G systems. For example, applicable systems can be the global system of mobile communication (GSM) system, code division multiple access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) general packet radio service (GPRS) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, long term evolution advanced (LTE-A) system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G New Radio (NR) system, etc. Both terminal devices and network devices are included in these multiple systems. The system may also include a core network part, such as the Evolved Packet System (EPS), 5G System (5GS), etc.
[0221] The above embodiments introduce the method for the integration of wireless communication and wireless sensing of the present invention. Next, this embodiment will further describe the corresponding device with reference to the accompanying drawings.
[0222] Taking the device for implementing the above method as Figure 10 an example, it includes a wireless communication signal generation unit 1010, a wireless sensing signal generation unit 1020, a first signal transceiver controller 1030, and a first time division duplex transceiver unit 1040; among them, the wireless communication signal generation unit 1010 is responsible for generating a wireless communication signal and sending it to the first time division duplex transceiver unit 1040; the wireless sensing signal generation unit 1020 is responsible for generating a wireless sensing signal and sending it to the first time division duplex transceiver unit 1040.
[0223] The first signal transceiver controller 1030: Controls the switching moment of the first time division duplex transceiver unit 1040 according to the frame structure. Specifically, first, it is used to control the closing (or not closing) of the first transmission channel after the end of the transmission time slot (downlink time slot or uplink time slot) of the wireless communication signal, and start the first reception channel, regardless of whether the time slot after the transmission time slot is a reception time slot (uplink time slot or downlink time slot) or an idle time slot. Second, it is used to clarify the time-frequency multiplexing scheme of the communication signal and the sensing signal, and notify the first time division duplex transceiver unit 1040.
[0224] The first time division duplex transceiver unit 1040 is used to, according to the indication of the first signal transceiver controller 1030, when the first transmission channel is turned on, send out the received wireless communication signal and wireless sensing signal; perform the conversion between the first transmission channel and the first reception channel; when the first reception channel is turned on, receive the echo signal corresponding to the wireless sensing signal.
[0225] It should be noted that this device is applied to the scenario where the communication device sends the wireless sensing signal at the end of the last transmission time slot. Sending the wireless sensing signal can occupy the entire working frequency band, or only occupy a part of the working frequency band, or can also perform frequency division multiplexing with the wireless communication signal on the same working frequency band.
[0226] Taking the device for implementing the method as Figure 11 an example, it includes a wireless communication signal generation unit 1010, a wireless sensing signal generation unit 1020, a second signal transceiver controller 1130, a second time division duplex transceiver unit 1140, and a simultaneous co-frequency full-duplex transceiver unit 1150; among them, the wireless communication signal generation unit 1010: is responsible for generating a wireless communication signal and sending it to the second time division duplex transceiver unit 1140; the wireless sensing signal generation unit 1020: is responsible for generating a wireless sensing signal and sending it to the simultaneous co-frequency full-duplex transceiver unit 1150.
[0227] The second signal transceiver controller 1130: First, it is used to control the switching moment of the second time division duplex transceiver unit 1140 according to the frame structure; second, it is used to control the switching moment of the simultaneous co-frequency full-duplex transceiver unit 1150. Specifically, it controls the activation of the third transmission channel of the simultaneous co-frequency full-duplex transceiver unit 1150 before the wireless sensing signal is sent, and controls the closing of the third transmission channel after the wireless sensing signal is sent; after the end of the transmission time slot (downlink time slot or uplink time slot) of the wireless communication signal, it controls the activation of the third reception channel in the simultaneous co-frequency full-duplex transceiver unit 1150, and controls the closing of the third reception channel after the echo signal is received. Third, it is used to clarify the time-frequency multiplexing scheme of the wireless communication signal and the wireless sensing signal, and notify the second time division duplex transceiver unit 1140 and the simultaneous co-frequency full-duplex transceiver unit 1150.
[0228] The second time-division duplex transceiver unit 1140: configured to, according to the indication of the second signal transceiver controller 1130, when the second transmission channel is turned on, transmit the received wireless communication signal; perform the conversion between the second transmission channel and the second reception channel; and when the second reception channel is turned on, receive the wireless communication signal.
[0229] The simultaneous co-frequency full-duplex transceiver unit 1150: configured to, according to the indication of the second signal transceiver controller 1130, when the third transmission channel is turned on, transmit the received wireless sensing signal; perform the conversion between the third transmission channel and the third reception channel; and when the third reception channel is turned on, receive the echo signal corresponding to the wireless sensing signal.
[0230] It should be noted that the device can be applied to any one of the following three scenarios: the tail of the last transmission time slot of the wireless communication signal of the communication device, the head of the subsequent time slot after the last transmission time slot of the wireless communication signal, and the head spanning the tail of the last transmission time slot and the subsequent time slot of the wireless communication signal. Transmitting the wireless sensing signal can occupy the entire working frequency band corresponding to the target time slot position, or only occupy a part of the working frequency band, or can perform frequency division multiplexing with the wireless communication signal on the same working frequency band.
[0231] Specifically, an embodiment of the present invention provides a device for fusing wireless communication and wireless sensing, which is applied to a communication device. The communication device can be a base station or a terminal, and includes:
[0232] A signal transceiver unit, configured to transmit a wireless sensing signal at a target time slot position related to the switching point between signal transmission and signal reception of the wireless communication signal of the communication device;
[0233] configured to receive the echo signal corresponding to the wireless sensing signal when the signal transmission time slot of the wireless communication signal ends.
[0234] Optionally, the target time slot position includes one of the following:
[0235] A time slot position with a duration of τ before the end moment of the first time slot, where the first time slot is the last signal transmission time slot of the wireless communication signal;
[0236] A time slot position with a duration of τ after the start moment of the second time slot, where the second time slot is the adjacent time slot after the last signal transmission time slot of the wireless communication signal;
[0237] A time slot position with a duration of τ that starts before the end moment of the first time slot and ends after the start moment of the second time slot;
[0238] where τ represents the duration of each transmission of the wireless sensing signal.
[0239] Optionally, when the communication device is a base station, the first time slot is a downlink time slot, and the second time slot is an idle time slot or an uplink time slot after the last signal transmission time slot of the wireless communication signal;
[0240] When the communication device is a terminal, the first time slot is an uplink time slot, and the second time slot is an idle time slot or a downlink time slot after the last signal transmission time slot of the wireless communication signal.
[0241] Optionally, the wireless sensing signal occupies all or part of the operating frequency band corresponding to the target time slot position.
[0242] Optionally, the signal transceiver unit is specifically configured to:
[0243] During the sensing detection period, send the wireless sensing signal N times at a target period;
[0244] where N×T1 < T;
[0245] T1 represents the target period, which is an integer multiple of the sub-frame time for sending the wireless communication signal, and T represents the sensing detection period.
[0246] Optionally, when the communication device operates in the full-duplex mode, the time for receiving the echo signal corresponding to the wireless sensing signal is;
[0247] Tr1 = T1 - τ
[0248] where Tr1 represents the time for receiving the echo signal, and τ represents the duration of each transmission of the wireless sensing signal.
[0249] Optionally, when the communication device operates in the time-division multiplexing mode, the time for receiving the echo signal corresponding to the wireless sensing signal is:
[0250] Tr2 = T1 - τ - Td1 - T0
[0251] where Tr2 represents the time for receiving the echo signal, τ represents the duration of each transmission of the wireless sensing signal, Td1 represents the time of the transmission time slot of the wireless communication signal, and T0 represents the conversion time between signal transmission and signal reception of the wireless communication signal.
[0252] As an optional embodiment, the device further includes:
[0253] Such as Figure 10As shown, the first signal transceiver controller 1030 is configured to generate a first transmission control signal for transmitting the wireless sensing signal, and the first transmission control signal is used to control the first transmission channel to transmit the wireless sensing signal.
[0254] It is also configured to generate a first reception control signal for receiving an echo signal corresponding to the wireless sensing signal when the signal transmission time slot of the wireless communication signal ends, and the first reception control signal is used to control the first reception channel to receive the echo signal.
[0255] Optionally, the signal transceiver unit includes:
[0256] As Figure 10 shown, the first time-division duplex transceiver unit 1040 can receive the control signal of the first signal transceiver controller 1030, and the control signal may include: a control signal for controlling the switching moment of the first time-division duplex transceiver unit 1040 according to the frame structure, and a control signal for clarifying the time-frequency multiplexing scheme of the communication signal and the sensing signal.
[0257] Specifically, the first time-division duplex transceiver unit may be configured to: at a target time slot position related to the switching point between signal transmission and signal reception of the wireless communication signal, transmit the wireless sensing signal through the first transmission channel according to the first transmission control signal;
[0258] When the first reception channel is turned on, receive an echo signal corresponding to the wireless sensing signal through the first reception channel according to the first reception control signal.
[0259] As an optional embodiment, the device further includes:
[0260] As Figure 11 shown, the second signal transceiver controller 1130 is configured to generate a second transmission control signal for transmitting the wireless communication signal, and the second transmission control signal is used to control the second transmission channel to transmit the wireless communication signal;
[0261] After transmitting the wireless communication signal, generate a second reception control signal for receiving the wireless communication signal, and the second reception control signal is used to control the second reception channel to receive the wireless communication signal;
[0262] Before transmitting the wireless sensing signal, generate a third transmission control signal for transmitting the wireless sensing signal, and the third transmission control signal is used to control the third transmission channel to transmit the wireless sensing signal;
[0263] When the wireless sensing signal transmission is completed and at the end of the signal transmission time slot of the wireless communication signal, a third reception control signal for generating an echo signal corresponding to the wireless sensing signal is generated, and the third reception control signal is used to control a third reception channel to receive the echo signal.
[0264] Optionally, the signal transceiver unit includes:
[0265] As Figure 11 shown, the second time-division duplex transceiver unit 1140 can receive control signals from the second signal transceiver controller 1130, and the control signals may include: a control signal for controlling the switching moment of the second time-division duplex transceiver unit 1140 according to the frame structure, and a control signal for clarifying the time-frequency multiplexing scheme of the communication signal and the sensing signal.
[0266] Specifically, the second time-division duplex transceiver unit can be used to, when the second transmission channel is turned on, transmit a wireless communication signal through the second transmission channel according to the second transmission control signal;
[0267] when the second reception channel is turned on, receive a wireless communication signal through the second reception channel according to the second reception control signal.
[0268] Optionally, the signal transceiver unit further includes:
[0269] As Figure 11 shown, the simultaneous co-frequency full-duplex transceiver unit 1150 can receive control signals from the second signal transceiver controller 1130, and the control signals may include: a control signal for controlling the switching moment of the simultaneous co-frequency full-duplex transceiver unit 1150 according to the frame structure, and a control signal for clarifying the time-frequency multiplexing scheme of the communication signal and the sensing signal.
[0270] Specifically, the simultaneous co-frequency full-duplex transceiver unit can be used to, when the third transmission channel is turned on, transmit the wireless sensing signal through the third transmission channel at a target time slot position related to the switching point between the signal transmission and signal reception of the wireless communication signal according to the third transmission control signal;
[0271] when the third reception channel is turned on, receive an echo signal corresponding to the wireless sensing signal through the third reception channel according to the third reception control signal.
[0272] Optionally, the device further includes:
[0273] As Figure 10 and Figure 11 shown, the wireless sensing signal generation unit 1020 is used to generate a wireless sensing signal.
[0274] Optionally, the device further includes:
[0275] As Figure 10 and Figure 11 shown, a wireless communication signal generation unit 1010, configured to generate a wireless communication signal.
[0276] It should be noted that the embodiments of this device correspond to the embodiments of the above method for integrating wireless communication and wireless sensing. All implementation manners in the above method embodiments are applicable to the embodiments of this device and can achieve the same technical effects. Since the method embodiments and the embodiments of this device are based on the same inventive concept and have similar principles for solving problems, they can be referred to each other, and the repeated parts will not be elaborated.
[0277] It should be noted that the division of units in the embodiments of this application is illustrative, merely a logical function division. In actual implementation, there may be other division methods. In addition, in each embodiment of this application, the functional units can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated units can be implemented in the form of hardware or in the form of software functional units.
[0278] If the above integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on such an understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the embodiments of this application. The foregoing storage medium includes: various media such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disc that can store program codes.
[0279] As Figure 12 shown, an embodiment of the present invention further provides a device for integrating wireless communication and wireless sensing, which is applied to a communication device. The communication device can be a base station or a terminal, and includes: a memory 1220, a transceiver 1200, and a processor 1210; wherein, the memory 1220 is used to store a computer program; the transceiver 1200 is used to transmit and receive data under the control of the processor 1210;
[0280] The processor 1210 is configured to read the computer program in the memory 1220 and perform the following operations:
[0281] Transmit a wireless sensing signal at a target time slot position related to a switching point between signal transmission and signal reception of a wireless communication signal;
[0282] Receive an echo signal corresponding to the wireless sensing signal when the signal transmission time slot of the wireless communication signal ends.
[0283] Optionally, the target time slot position includes one of the following:
[0284] A time slot position with a duration of τ before the end moment of the first time slot, where the first time slot is the last signal transmission time slot of the wireless communication signal;
[0285] A time slot position with a duration of τ after the start moment of the second time slot, where the second time slot is the adjacent time slot after the last signal transmission time slot of the wireless communication signal;
[0286] A time slot position with a duration of τ that starts before the end moment of the first time slot and ends after the start moment of the second time slot;
[0287] Where τ represents the duration of each transmission of the wireless sensing signal.
[0288] Optionally, when the communication device is a base station, the first time slot is a downlink time slot, and the second time slot is an idle time slot or an uplink time slot after the last signal transmission time slot of the wireless communication signal;
[0289] When the communication device is a terminal, the first time slot is an uplink time slot, and the second time slot is an idle time slot or a downlink time slot after the last signal transmission time slot of the wireless communication signal.
[0290] Optionally, the wireless sensing signal occupies all or part of the working frequency band corresponding to the target time slot position.
[0291] Optionally, the transmitting the wireless sensing signal at a target time slot position related to a switching point between signal transmission and signal reception of a wireless communication signal specifically includes:
[0292] Transmit the wireless sensing signal N times at a target period within a sensing detection period;
[0293] Where N×T1 < T;
[0294] T1 represents the target period, which is an integer multiple of the sub-frame time for transmitting the wireless communication signal, and T represents the sensing detection period.
[0295] Optionally, when the communication device operates in the full-duplex mode, the time for receiving the echo signal corresponding to the wireless sensing signal is:
[0296] Tr1 = T1 - τ
[0297] where Tr1 represents the time for receiving the echo signal, and τ represents the duration of each transmission of the wireless sensing signal.
[0298] Optionally, when the communication device operates in the time-division multiplexing mode, the time for receiving the echo signal corresponding to the wireless sensing signal is:
[0299] Tr2 = T1 - τ - Td1 - T0
[0300] where Tr2 represents the time for receiving the echo signal, τ represents the duration of each transmission of the wireless sensing signal, Td1 represents the time of the transmission time slot of the wireless communication signal, and T0 represents the conversion time between the signal transmission and signal reception of the wireless communication signal.
[0301] Optionally, when the processor executes the computer program, it is further configured to implement the following steps:
[0302] Generate a first transmission control signal for transmitting the wireless sensing signal, where the first transmission control signal is used to control a first transmission channel to transmit the wireless sensing signal;
[0303] When the signal transmission time slot of the wireless communication signal ends, generate a first reception control signal for receiving the echo signal corresponding to the wireless sensing signal, where the first reception control signal is used to control a first reception channel to receive the echo signal.
[0304] Optionally, transmitting the wireless sensing signal at a target time slot position related to the switching point between the signal transmission and signal reception of the wireless communication signal specifically includes:
[0305] At a target time slot position related to the switching point between the signal transmission and signal reception of the wireless communication signal, transmit the wireless sensing signal through the first transmission channel according to the first transmission control signal;
[0306] Receiving the echo signal corresponding to the wireless sensing signal when the signal transmission time slot of the wireless communication signal ends specifically includes:
[0307] When the first reception channel is enabled, receive the echo signal corresponding to the wireless sensing signal through the first reception channel according to the first reception control signal.
[0308] Optionally, when the processor executes the computer program, it is further configured to implement the following steps:
[0309] Generate a second transmission control signal for transmitting a wireless communication signal, where the second transmission control signal is used to control a second transmission channel to transmit the wireless communication signal;
[0310] After the wireless communication signal is transmitted, generate a second reception control signal for receiving a wireless communication signal, where the second reception control signal is used to control a second reception channel to receive the wireless communication signal;
[0311] Before transmitting a wireless sensing signal, generate a third transmission control signal for transmitting the wireless sensing signal, where the third transmission control signal is used to control a third transmission channel to transmit the wireless sensing signal;
[0312] When the wireless sensing signal is transmitted and the signal transmission time slot of the wireless communication signal ends, generate a third reception control signal for receiving an echo signal corresponding to the wireless sensing signal, where the third reception control signal is used to control a third reception channel to receive the echo signal.
[0313] Optionally, when the processor executes the computer program, it is further configured to implement the following steps:
[0314] When the second transmission channel is enabled, transmit a wireless communication signal through the second transmission channel according to the second transmission control signal;
[0315] When the second reception channel is enabled, receive a wireless communication signal through the second reception channel according to the second reception control signal.
[0316] Optionally, transmitting the wireless sensing signal at a target time slot position related to a signal transmission and signal reception switching point of the wireless communication signal specifically includes:
[0317] When the third transmission channel is enabled, transmit the wireless sensing signal through the third transmission channel at a target time slot position related to a signal transmission and signal reception switching point of the wireless communication signal according to the third transmission control signal;
[0318] When the signal transmission time slot of the wireless communication signal ends, receiving an echo signal corresponding to the wireless sensing signal specifically includes:
[0319] When the third reception channel is enabled, receive an echo signal corresponding to the wireless sensing signal through the third reception channel according to the third reception control signal.
[0320] Optionally, at a target time slot position related to a handover point between signal transmission and signal reception of a wireless communication signal, before transmitting a wireless sensing signal, when the processor executes the computer program, the processor is further configured to implement the following steps:
[0321] Generate a wireless sensing signal.
[0322] Optionally, at a target time slot position related to a handover point between signal transmission and signal reception of a wireless communication signal, before the wireless sensing signal, when the processor executes the computer program, the processor is further configured to implement the following steps:
[0323] Generate a wireless communication signal.
[0324] Wherein, in Figure 12 The bus architecture may include any number of interconnected buses and bridges. Specifically, various circuits represented by one or more processors represented by the processor 1210 and the memory represented by the memory 1220 are linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art. Therefore, they will not be further described herein. The bus interface provides an interface. The transceiver 1200 may be a plurality of components, that is, including a transmitter and a transceiver, and provides a unit for communicating with various other devices on a transmission medium. The processor 1210 is responsible for managing the bus architecture and general processing, and the memory 1220 may store data used by the processor 1210 when executing operations.
[0325] The processor 1210 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.
[0326] The processor is configured to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions by calling a computer program stored in the memory. The processor and the memory may also be physically separated.
[0327] It should be noted here that the above device provided in the embodiments of the present invention can implement all the method steps implemented by the above method embodiments of the fusion of wireless communication and wireless sensing, and can achieve the same technical effects. Therefore, the same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.
[0328] In addition, a specific embodiment of the present invention further provides a processor-readable storage medium, on which a computer program is stored. When the program is executed by a processor, it implements the steps of the method for fusing wireless communication and wireless sensing as described above, and can achieve the same technical effects. To avoid repetition, it will not be elaborated here. The readable storage medium may be any available medium or data storage device accessible by the processor, including but not limited to magnetic memories (such as floppy disks, hard disks, magnetic tapes, magneto-optical discs (MO), etc.), optical memories (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor memories (such as ROMs, EPROMs, EEPROMs, non-volatile memories (NAND FLASH), solid-state drives (SSD)).
[0329] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories and optical memories, etc.) containing computer-usable program code.
[0330] The present application is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the functions specified in one or more flows in the flowchart and / or one or more blocks in the block diagram.
[0331] These processor-executable instructions can also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the processor-readable memory generate a manufactured article including an instruction device that implements the functions specified in one or more flows in the flowchart and / or one or more blocks in the block diagram.
[0332] These processor-executable instructions can also be loaded onto a computer or other programmable data processing apparatus, so that a series of operation steps are executed on the computer or other programmable apparatus to generate a computer-implemented process, thereby the instructions executed on the computer or other programmable apparatus provide steps for implementing the functions specified in one process or more processes of the flowchart and / or one block or more blocks of the block diagram.
[0333] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to cover these changes and modifications.
Claims
1. A method for integrating wireless communication and wireless sensing, characterized in that Including: The communication device transmits a wireless sensing signal at a target time slot position related to the switching point between signal transmission and signal reception of the wireless communication signal; When the signal transmission time slot of the wireless communication signal ends, the communication device receives an echo signal corresponding to the wireless sensing signal; The target time slot position includes one of the following: A time slot position with a duration of τ before the end time of the first time slot, where the first time slot is the last signal transmission time slot of the wireless communication signal; A time slot position with a duration of τ after the start time of the second time slot, where the second time slot is the adjacent time slot after the last signal transmission time slot of the wireless communication signal; A time slot position with a duration of τ that starts before the end time of the first time slot and ends after the start time of the second time slot; Where τ represents the duration of each transmission of the wireless sensing signal.
2. The method according to claim 1, wherein When the communication device is a base station, the first time slot is a downlink time slot, and the second time slot is an idle time slot or an uplink time slot after the last signal transmission time slot of the wireless communication signal; When the communication device is a terminal, the first time slot is an uplink time slot, and the second time slot is an idle time slot or a downlink time slot after the last signal transmission time slot of the wireless communication signal.
3. The method according to claim 1, wherein The wireless sensing signal occupies all or part of the working frequency band corresponding to the target time slot position.
4. The method according to claim 1, wherein The step of transmitting a wireless sensing signal at a target time slot position related to the switching point between signal transmission and signal reception of the wireless communication signal includes: During the sensing detection period, the wireless sensing signal is transmitted N times at a target period; Where N×T1 < T; T1 represents the target period, which is an integer multiple of the sub-frame time for transmitting the wireless communication signal, and T represents the sensing detection period.
5. The method according to claim 4, wherein When the communication device operates in the full-duplex mode, the time for receiving the echo signal corresponding to the wireless sensing signal is; Tr1 = T1 - τ Where Tr1 represents the time for receiving the echo signal, and τ represents the duration of each transmission of the wireless sensing signal.
6. The method according to claim 4, wherein When the communication device operates in the time-division multiplexing mode, the time for receiving the echo signal corresponding to the wireless sensing signal is: Tr2 = T1 - τ - Td1 - T0 Where Tr2 represents the time for receiving the echo signal, τ represents the duration of each transmission of the wireless sensing signal, Td1 represents the time of the signal transmission time slot of the wireless communication signal, and T0 represents the conversion time between signal transmission and signal reception of the wireless communication signal.
7. The method according to claim 1, wherein The method further includes: Generating a first transmission control signal for transmitting the wireless sensing signal, where the first transmission control signal is used to control a first transmission channel to transmit the wireless sensing signal; When the signal transmission time slot of the wireless communication signal ends, generating a first reception control signal for receiving the echo signal corresponding to the wireless sensing signal, where the first reception control signal is used to control a first reception channel to receive the echo signal.
8. The method according to claim 7, wherein The step of transmitting a wireless sensing signal at a target time slot position related to the switching point between signal transmission and signal reception of the wireless communication signal includes: At a target time slot position related to a switching point between signal transmission and signal reception of a wireless communication signal, transmit the wireless sensing signal through the first transmission channel according to the first transmission control signal; Receiving an echo signal corresponding to the wireless sensing signal when the signal transmission time slot of the wireless communication signal ends, includes: When the first receiving channel is turned on, receive the echo signal corresponding to the wireless sensing signal through the first receiving channel according to the first receiving control signal.
9. The method according to claim 1, characterized in that, The method further includes: Generate a second transmission control signal for transmitting a wireless communication signal, where the second transmission control signal is used to control a second transmission channel to transmit the wireless communication signal; After transmitting the wireless communication signal, generate a second receiving control signal for receiving the wireless communication signal, where the second receiving control signal is used to control a second receiving channel to receive the wireless communication signal; Before transmitting the wireless sensing signal, generate a third transmission control signal for transmitting the wireless sensing signal, where the third transmission control signal is used to control a third transmission channel to transmit the wireless sensing signal; When the transmission of the wireless sensing signal is completed and the signal transmission time slot of the wireless communication signal ends, generate a third receiving control signal for receiving the echo signal corresponding to the wireless sensing signal, where the third receiving control signal is used to control a third receiving channel to receive the echo signal.
10. The method according to claim 9, characterized in that, The method further includes: When the second transmission channel is turned on, transmit the wireless communication signal through the second transmission channel according to the second transmission control signal; When the second receiving channel is turned on, receive the wireless communication signal through the second receiving channel according to the second receiving control signal.
11. The method according to claim 9, wherein Transmitting the wireless sensing signal at a target time slot position related to a switching point between signal transmission and signal reception of the wireless communication signal, includes: When the third transmission channel is turned on, at a target time slot position related to a switching point between signal transmission and signal reception of the wireless communication signal, transmit the wireless sensing signal through the third transmission channel according to the third transmission control signal; Receiving an echo signal corresponding to the wireless sensing signal when the signal transmission time slot of the wireless communication signal ends, includes: When the third receiving channel is turned on, receive the echo signal corresponding to the wireless sensing signal through the third receiving channel according to the third receiving control signal.
12. The method according to claim 1, wherein Before transmitting the wireless sensing signal at a target time slot position related to a switching point between signal transmission and signal reception of the wireless communication signal, the method further includes: Generate a wireless sensing signal.
13. The method according to claim 1, characterized in that, Before transmitting the wireless sensing signal at a target time slot position related to a switching point between signal transmission and signal reception of the wireless communication signal, the method further includes: Generate a wireless communication signal.
14. A device for integrating wireless communication and wireless sensing, comprising: A transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein when the processor executes the computer program, the following steps are implemented: Transmit a wireless sensing signal at a target time slot position related to a switching point between signal transmission and signal reception of a wireless communication signal; When the signal transmission time slot of the wireless communication signal ends, receive an echo signal corresponding to the wireless sensing signal; The target time slot position includes one of the following: A time slot position with a duration of τ before the end time of the first time slot, where the first time slot is the last signal transmission time slot of the wireless communication signal; A time slot position with a duration of τ after the start time of the second time slot, where the second time slot is the adjacent time slot after the last signal transmission time slot of the wireless communication signal; A time slot position with a duration of τ that starts before the end time of the first time slot and ends after the start time of the second time slot; Where τ represents the duration of each transmission of the wireless sensing signal.
15. The device according to claim 14, characterized in that, When the communication device is a base station, the first time slot is a downlink time slot, and the second time slot is an idle time slot or an uplink time slot after the last signal transmission time slot of the wireless communication signal; When the communication device is a terminal, the first time slot is an uplink time slot, and the second time slot is an idle time slot or a downlink time slot after the last signal transmission time slot of the wireless communication signal.
16. The device according to claim 14, characterized in that, The wireless sensing signal occupies all or part of the working frequency band corresponding to the target time slot position.
17. The device according to claim 14, characterized in that, Transmitting the wireless sensing signal at the target time slot position related to the switching point between signal transmission and signal reception of the wireless communication signal specifically includes: During the sensing detection period, transmitting the wireless sensing signal N times at a target period; Where N×T1 < T; T1 represents the target period, which is an integer multiple of the sub-frame time for transmitting the wireless communication signal, and T represents the sensing detection period.
18. The device according to claim 17, characterized in that, When the communication device operates in the full-duplex mode, the time for receiving the echo signal corresponding to the wireless sensing signal is; Tr1 = T1 - τ Where Tr1 represents the time for receiving the echo signal, and τ represents the duration of each transmission of the wireless sensing signal.
19. The device according to claim 17, characterized in that, When the communication device operates in the time-division multiplexing mode, the time for receiving the echo signal corresponding to the wireless sensing signal is: Tr2 = T1 - τ - Td1 - T0 Where Tr2 represents the time for receiving the echo signal, τ represents the duration of each transmission of the wireless sensing signal, Td1 represents the time of the transmission time slot of the wireless communication signal, and T0 represents the conversion time between signal transmission and signal reception of the wireless communication signal.
20. The device according to claim 14, characterized in that When the processor executes the computer program, it is further used to implement the following steps: Generate a first transmission control signal for transmitting the wireless sensing signal, where the first transmission control signal is used to control the first transmission channel to transmit the wireless sensing signal; When the signal transmission time slot of the wireless communication signal ends, generate a first reception control signal for receiving the echo signal corresponding to the wireless sensing signal, where the first reception control signal is used to control the first reception channel to receive the echo signal.
21. The device according to claim 20, characterized in that, Transmitting the wireless sensing signal at the target time slot position related to the switching point between signal transmission and signal reception of the wireless communication signal specifically includes: At a target time slot position related to a switching point between signal transmission and signal reception of a wireless communication signal, transmit the wireless sensing signal through the first transmission channel according to the first transmission control signal; The receiving of the echo signal corresponding to the wireless sensing signal when the signal transmission time slot of the wireless communication signal ends specifically includes: When the first receiving channel is turned on, receive the echo signal corresponding to the wireless sensing signal through the first receiving channel according to the first receiving control signal.
22. The device according to claim 14, wherein, When the processor executes the computer program, it is further used to implement the following steps: Generate a second transmission control signal for transmitting a wireless communication signal, where the second transmission control signal is used to control a second transmission channel to transmit the wireless communication signal; After transmitting the wireless communication signal, generate a second receiving control signal for receiving the wireless communication signal, where the second receiving control signal is used to control a second receiving channel to receive the wireless communication signal; Before transmitting the wireless sensing signal, generate a third transmission control signal for transmitting the wireless sensing signal, where the third transmission control signal is used to control a third transmission channel to transmit the wireless sensing signal; When the wireless sensing signal is transmitted and the signal transmission time slot of the wireless communication signal ends, generate a third receiving control signal for receiving the echo signal corresponding to the wireless sensing signal, where the third receiving control signal is used to control a third receiving channel to receive the echo signal.
23. The device according to claim 22, characterized in that, When the processor executes the computer program, it is further used to implement the following steps: When the second transmission channel is turned on, transmit the wireless communication signal through the second transmission channel according to the second transmission control signal; When the second receiving channel is turned on, receive the wireless communication signal through the second receiving channel according to the second receiving control signal.
24. The device according to claim 22, wherein, The transmitting of the wireless sensing signal at a target time slot position related to a switching point between signal transmission and signal reception of the wireless communication signal specifically includes: When the third transmission channel is turned on, transmit the wireless sensing signal through the third transmission channel at a target time slot position related to a switching point between signal transmission and signal reception of the wireless communication signal according to the third transmission control signal; The receiving of the echo signal corresponding to the wireless sensing signal when the signal transmission time slot of the wireless communication signal ends specifically includes: When the third receiving channel is turned on, receive the echo signal corresponding to the wireless sensing signal through the third receiving channel according to the third receiving control signal.
25. The device according to claim 14, characterized in that, Before transmitting the wireless sensing signal at a target time slot position related to a switching point between signal transmission and signal reception of the wireless communication signal, when the processor executes the computer program, it is further used to implement the following steps: Generate a wireless sensing signal.
26. The device according to claim 14, characterized in that Before transmitting the wireless sensing signal at a target time slot position related to a switching point between signal transmission and signal reception of the wireless communication signal, when the processor executes the computer program, it is further used to implement the following steps: Generate a wireless communication signal.
27. A device for the integration of wireless communication and wireless sensing, characterized in that, Including: A signal transceiver unit, configured to transmit a wireless sensing signal at a target time slot position related to a handover point between signal transmission and signal reception of a wireless communication signal; receive an echo signal corresponding to the wireless sensing signal when the signal transmission time slot of the wireless communication signal ends; The target time slot position includes one of the following: A time slot position with a duration of τ before the end time of the first time slot, where the first time slot is the last signal transmission time slot of the wireless communication signal; A time slot position with a duration of τ after the start time of the second time slot, where the second time slot is the adjacent time slot after the last signal transmission time slot of the wireless communication signal; A time slot position with a duration of τ that starts before the end time of the first time slot and ends after the start time of the second time slot; where τ represents the duration of each transmission of the wireless sensing signal.
28. The device according to claim 27, wherein When the communication device is a base station, the first time slot is a downlink time slot, and the second time slot is an idle time slot or an uplink time slot after the last signal transmission time slot of the wireless communication signal; When the communication device is a terminal, the first time slot is an uplink time slot, and the second time slot is an idle time slot or a downlink time slot after the last signal transmission time slot of the wireless communication signal.
29. The device according to claim 27, characterized in that, The wireless sensing signal occupies all or part of the working frequency band corresponding to the target time slot position.
30. The device according to claim 27, characterized in that, The signal transceiver unit is specifically configured to: transmit the wireless sensing signal N times at a target period within a sensing detection period; where N×T1 < T; T1 represents the target period, which is an integer multiple of the sub-frame time for transmitting the wireless communication signal, and T represents the sensing detection period.
31. The device according to claim 30, characterized in that, When the communication device operates in the full-duplex mode, the time for receiving the echo signal corresponding to the wireless sensing signal is; Tr1 = T1 - τ where Tr1 represents the time for receiving the echo signal, and τ represents the duration of each transmission of the wireless sensing signal.
32. The device according to claim 30, wherein, When the communication device operates in the time-division multiplexing mode, the time for receiving the echo signal corresponding to the wireless sensing signal is: Tr2 = T1 - τ - Td1 - T0 where Tr2 represents the time for receiving the echo signal, τ represents the duration of each transmission of the wireless sensing signal, Td1 represents the time of the signal transmission time slot of the wireless communication signal, and T0 represents the conversion time between signal transmission and signal reception of the wireless communication signal.
33. The device according to claim 27, wherein The apparatus further includes: A first signal transceiver controller, configured to generate a first transmission control signal for transmitting the wireless sensing signal, where the first transmission control signal is used to control a first transmission channel to transmit the wireless sensing signal; and further configured to generate a first reception control signal for receiving the echo signal corresponding to the wireless sensing signal when the signal transmission time slot of the wireless communication signal ends, where the first reception control signal is used to control a first reception channel to receive the echo signal.
34. The apparatus according to claim 33, wherein The signal transceiver unit includes: The first time-division duplex transceiver unit is used to transmit the wireless sensing signal through the first transmission channel according to the first transmission control signal at a target time slot position related to a switching point between signal transmission and signal reception of a wireless communication signal. When the first reception channel is enabled, it receives an echo signal corresponding to the wireless sensing signal through the first reception channel according to the first reception control signal.
35. The device according to claim 27, characterized in that, The device further includes: A second signal transceiver controller for generating a second transmission control signal for transmitting a wireless communication signal, where the second transmission control signal is used to control a second transmission channel to transmit the wireless communication signal. After transmitting the wireless communication signal, it generates a second reception control signal for receiving the wireless communication signal, where the second reception control signal is used to control a second reception channel to receive the wireless communication signal. Before transmitting the wireless sensing signal, it generates a third transmission control signal for transmitting the wireless sensing signal, where the third transmission control signal is used to control a third transmission channel to transmit the wireless sensing signal. When the transmission of the wireless sensing signal is completed and the signal transmission time slot of the wireless communication signal ends, it generates a third reception control signal for receiving an echo signal corresponding to the wireless sensing signal, where the third reception control signal is used to control a third reception channel to receive the echo signal.
36. The device according to claim 35, wherein The signal transceiver unit includes: A second time-division duplex transceiver unit for transmitting the wireless communication signal through the second transmission channel according to the second transmission control signal when the second transmission channel is enabled. When the second reception channel is enabled, it receives the wireless communication signal through the second reception channel according to the second reception control signal.
37. The device according to claim 35, characterized in that, The signal transceiver unit further includes: A simultaneous and co-frequency full-duplex transceiver unit for transmitting the wireless sensing signal through the third transmission channel at a target time slot position related to a switching point between signal transmission and signal reception of the wireless communication signal according to the third transmission control signal when the third transmission channel is enabled. When the third reception channel is enabled, it receives an echo signal corresponding to the wireless sensing signal through the third reception channel according to the third reception control signal.
38. The device according to claim 27, characterized in that, The device further includes: A wireless sensing signal generation unit for generating a wireless sensing signal.
39. The device according to claim 27, characterized in that, The device further includes: A wireless communication signal generation unit for generating a wireless communication signal.
40. A processor-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the steps of the method for fusing wireless communication and wireless sensing as described in any one of claims 1 to 13.
Citation Information
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