Signal transmission method and apparatus

Abstract

Embodiments of the present application provide a signal transmission method and apparatus, capable of improving sensing performance. The method comprises: sending a first sensing signal on P first time units in a first carrier; sending a second sensing signal on Q second time units in a second carrier, the P first time units and the Q second time units comprising M time units having a same time domain position, P being greater than M, and M being an integer greater than or equal to 1.

Description

Signal transmission method and apparatus

[0001] This application claims priority to Chinese Patent Application No. 202411570238.8, filed on November 5, 2024, entitled “Signal Transmission Method and Apparatus”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of integrated communication and sensing technology, and more specifically, to a signal transmission method and apparatus. Background Technology

[0003] In the evolution from the 5th Generation (5G) mobile communication system to 5G-Advanced (5G-A) technology, integrated communication and sensing technology is considered one of the key technologies for expanding the service capabilities of mobile communication networks. The core idea of ​​this technology is to add sensing capabilities to the mobile communication network, building the ability to detect, track, and image targets, thereby integrating communication and sensing capabilities into a single network, achieving harmonious coexistence and even mutual benefit.

[0004] Communication technology involves the transmitter modulating information onto radio waves and sending it to the receiver, which then demodulates the signal to obtain the information. Sensing technology involves the transmitter sending radio waves (such as sensing signals) in a specific direction. When these radio waves strike a target surface, they create reflected waves (such as echo signals). The receiver then receives and processes these reflected waves to obtain information such as the target's distance, speed, and type.

[0005] Since the resolution of distance sensing is related to the bandwidth of the carrier carrying the sensing signal, and the equivalent bandwidth of multiple carriers is greater than that of a single carrier, joint sensing using multiple carriers may result in better sensing performance, such as higher resolution for distance measurement.

[0006] In summary, how to improve sensing performance through joint sensing using multiple carriers has become an urgent problem to be solved in the industry. Summary of the Invention

[0007] This application provides a signal transmission method and apparatus that can improve sensing performance.

[0008] In a first aspect, embodiments of this application provide a signal transmission method, which may include: transmitting a first sensing signal on P first time units in a first carrier; and transmitting a second sensing signal on Q second time units in a second carrier, wherein the P first time units and the Q second time units include M time units with the same time domain position, P is greater than M, and M is an integer greater than or equal to 1.

[0009] Alternatively, the method can be performed by the sending device.

[0010] It should be noted that the length of time that the phase remains continuous determines the resolution of speed perception. That is, the longer the phase remains continuous, the higher the resolution of speed perception, and vice versa.

[0011] The signal transmission method provided in this application improves the speed sensing resolution because the transmission device maintains phase continuity for a single carrier (such as the first carrier) for a longer period of time (i.e., P consecutive time units) than it does for a multi-carrier (such as the first carrier and the second carrier) for a longer period of time (i.e., M consecutive time units). In other words, the speed resolution sensed based on the echo signal of a single carrier is greater than the speed resolution measured based on the echo signal of a multi-carrier.

[0012] Optionally, the time unit (such as the first time unit) mentioned in the embodiments of this application can be a frame, a time slot, a symbol, etc. The embodiments of this application use a time unit as a symbol as an example for description, but the embodiments of this application are not limited to this.

[0013] Optionally, in the embodiments of this application, the P first time units can be distributed at equal intervals or at unequal intervals, and the embodiments of this application do not limit this.

[0014] Optionally, in the embodiments of this application, the interval between P first time units may be less than or equal to the interval between M time units, and the embodiments of this application do not limit this.

[0015] In one possible implementation, the interval between the P first time units is less than the interval between the M time units.

[0016] It should be noted that the transmission interval of the sensing signal determines the range of speed sensing. For example, the smaller the transmission interval, the larger the range of speed sensing, and vice versa.

[0017] The signal transmission method provided in this application improves the speed sensing range because the transmission interval of the transmitting device on a single carrier (such as the first carrier) is smaller than the transmission interval on multiple carriers (such as the first carrier and the second carrier). In other words, the range of speed sensing based on a single carrier is greater than the range of speed sensing based on multiple carriers.

[0018] In one possible implementation, Q is greater than M.

[0019] Optionally, in the embodiments of this application, the Q second time units can be distributed at equal intervals or at unequal intervals, and the embodiments of this application do not limit this.

[0020] Optionally, in the embodiments of this application, the interval between Q second time units may be less than or equal to the interval between M time units, and the embodiments of this application do not limit this.

[0021] In one possible implementation, the interval between the Q second time units is smaller than the interval between the M time units.

[0022] It should be noted that if the time length for maintaining phase continuity on a single carrier is greater than the time length for maintaining phase continuity on multiple carriers, then the resolution of the speed sensed by a single carrier is greater than the resolution of the speed sensed by multiple carriers; if the interval for transmitting sensing signals on a single carrier is less than the interval for transmitting sensing signals on multiple carriers, then the range of speed sensed by a single carrier is greater than the range of speed sensed by multiple carriers.

[0023] Therefore, in the embodiments of this application, the duration of phase continuity on different carriers and the interval of transmitted sensing signals can be flexibly configured to improve the resolution and range of speed sensing. To avoid repetition, various combinations will not be listed here.

[0024] In one possible implementation, P equals Q.

[0025] By employing the signal transmission method provided in the embodiments of this application, since P equals Q, the resolution of speed perception can be improved without increasing resource overhead.

[0026] In one possible implementation, the method may further include: receiving capability reporting information from a receiving device, the capability reporting information indicating that the maximum capability of the receiving device to maintain phase continuity on the first carrier and the second carrier is N consecutive time units, the N consecutive time units including the M time units; transmitting a first sensing signal on P first time units in the first carrier, including: transmitting the first sensing signal on the P first time units in the first carrier based on the capability reporting information; and transmitting a second sensing signal on Q second time units in the second carrier, including: transmitting the second sensing signal on the Q second time units in the second carrier based on the capability reporting information.

[0027] Secondly, embodiments of this application also provide a signal transmission method, which may include: receiving echo signals of a first sensing signal on P first time units in a first carrier; and receiving echo signals of a second sensing signal on Q second time units in a second carrier, wherein the P first time units and the Q second time units include M time units with the same time domain position, P is greater than M, and M is an integer greater than or equal to 1.

[0028] Alternatively, the method can be performed by a receiving device.

[0029] It should be noted that the length of time that the phase remains continuous determines the resolution of speed perception. That is, the longer the phase remains continuous, the higher the resolution of speed perception, and vice versa.

[0030] The signal transmission method provided in this application improves the speed sensing resolution because the receiving device maintains phase continuity for a single carrier (such as the first carrier) for a longer period of time (i.e., P consecutive time units) than it does for a multi-carrier (such as the first carrier and the second carrier) for a longer period of time (i.e., M consecutive time units). In other words, the speed resolution sensed based on the echo signal of a single carrier is greater than the speed resolution measured based on the echo signal of a multi-carrier.

[0031] Optionally, the time unit (such as the first time unit) mentioned in the embodiments of this application can be a frame, a time slot, a symbol, etc. The embodiments of this application use a time unit as a symbol as an example for description, but the embodiments of this application are not limited to this.

[0032] Optionally, in the embodiments of this application, the P first time units can be distributed at equal intervals or at unequal intervals, and the embodiments of this application do not limit this.

[0033] Optionally, in the embodiments of this application, the interval between P first time units may be less than or equal to the interval between M time units, and the embodiments of this application do not limit this.

[0034] In one possible implementation, the interval between the P first time units is less than the interval between the M time units.

[0035] It should be noted that the transmission interval of the sensing signal determines the range of speed sensing. For example, the smaller the transmission interval, the larger the range of speed sensing, and vice versa.

[0036] The signal transmission method provided in this application improves the speed sensing range because the transmission interval of the receiving device on a single carrier (such as the first carrier) is smaller than the transmission interval on multiple carriers (such as the first carrier and the second carrier). In other words, the range of speed sensing based on a single carrier is greater than the range of speed sensing based on multiple carriers.

[0037] In one possible implementation, Q is greater than M.

[0038] Optionally, in the embodiments of this application, the Q second time units can be distributed at equal intervals or at unequal intervals, and the embodiments of this application do not limit this.

[0039] Optionally, in the embodiments of this application, the interval between Q second time units may be less than or equal to the interval between M time units, and the embodiments of this application do not limit this.

[0040] In one possible implementation, the interval between the Q second time units is smaller than the interval between the M time units.

[0041] It should be noted that if the time length for maintaining phase continuity on a single carrier is greater than the time length for maintaining phase continuity on multiple carriers, then the resolution of the speed sensed by a single carrier is greater than the resolution of the speed sensed by multiple carriers; if the interval for transmitting sensing signals on a single carrier is less than the interval for transmitting sensing signals on multiple carriers, then the range of speed sensed by a single carrier is greater than the range of speed sensed by multiple carriers.

[0042] Therefore, in the embodiments of this application, the duration of phase continuity on different carriers and the interval of transmitted sensing signals can be flexibly configured to improve the resolution and range of speed sensing. To avoid repetition, various combinations will not be listed here.

[0043] In one possible implementation, P equals Q.

[0044] By employing the signal transmission method provided in the embodiments of this application, since P equals Q, the resolution of speed perception can be improved without increasing resource overhead.

[0045] In one possible implementation, the method further includes: sending capability reporting information to the transmitting device, the capability reporting information indicating that the maximum capability of the receiving device to maintain phase continuity on the first carrier and the second carrier is N consecutive time units, the N consecutive time units including the M time units.

[0046] In one possible implementation, the method further includes: sensing based on the echo signals received over the M time units to obtain a first sensing result of the target, the first sensing result including a first velocity and / or a first distance.

[0047] In other words, the receiving device can perform joint sensing based on the echo signals received within the same M time units on the first and second carriers to obtain the first sensing result of the target.

[0048] In one possible implementation, the method further includes: sensing based on the echo signal of the first sensing signal to obtain a second sensing result of the target, the second sensing result including a second speed and / or a second distance.

[0049] In other words, the receiving device can sense the target based on the echo signal received on a single carrier wave and obtain a second sensing result.

[0050] In one possible implementation, the method further includes: sensing based on the sensing signals received over the M time units to obtain a first sensing result of the target, the first sensing result including a first velocity and / or a first distance; sensing based on the echo signal of the first sensing signal to obtain a second sensing result of the target, the second sensing result including a second velocity and / or a second distance; and obtaining a target sensing result of the target based on the first sensing result and the second sensing result.

[0051] In other words, the receiving device can determine the final target sensing result based on the first sensing result obtained by joint sensing of multiple carriers and the second sensing result obtained by sensing a single carrier.

[0052] Thirdly, embodiments of this application also provide a signal transmission device, which may include: a processor and a communication interface, the processor being coupled to the communication interface, the processor being configured to: transmit a first sensing signal on P first time units in a first carrier through the communication interface; and transmit a second sensing signal on Q second time units in a second carrier through the communication interface, wherein the P first time units and the Q second time units include M time units with the same time domain position, P being greater than M, and M being an integer greater than or equal to 1.

[0053] In one possible implementation, P equals Q.

[0054] In one possible implementation, the interval between the P first time units is less than the interval between the M time units.

[0055] In one possible implementation, the interval between the Q second time units is smaller than the interval between the M time units.

[0056] In one possible implementation, the processor is further configured to: receive capability reporting information from a receiving device via the communication interface, the capability reporting information indicating that the maximum capability of the receiving device to maintain phase continuity on the first carrier and the second carrier is N consecutive time units, the N consecutive time units including the M time units; specifically, the processor is configured to: based on the capability reporting information, transmit the first sensing signal on the P first time units in the first carrier via the communication interface; and based on the capability reporting information, transmit the second sensing signal on the Q second time units in the second carrier via the communication interface.

[0057] Fourthly, embodiments of this application also provide another signal transmission device, which may include: a processor and a communication interface, the processor being coupled to the communication interface, the processor being configured to: receive echo signals of a first sensing signal on P first time units in a first carrier through the communication interface; and receive echo signals of a second sensing signal on Q second time units in a second carrier through the communication interface, wherein the P first time units and the Q second time units include M time units with the same time domain position, P being greater than M, and M being an integer greater than or equal to 1.

[0058] In one possible implementation, P equals Q.

[0059] In one possible implementation, the interval between the P first time units is less than the interval between the M time units.

[0060] In one possible implementation, the interval between the Q second time units is smaller than the interval between the M time units.

[0061] In one possible implementation, the processor is further configured to: send capability reporting information to the transmitting device via the communication interface, the capability reporting information indicating that the maximum capability of the receiving device to maintain phase continuity on the first carrier and the second carrier is N consecutive time units, the N consecutive time units including the M time units.

[0062] In one possible implementation, the processor is further configured to: perform sensing based on the echo signals received over the M time units to obtain a first sensing result of the target, the first sensing result including a first speed and / or a first distance.

[0063] In one possible implementation, the processor is further configured to: perform sensing based on the echo signal of the first sensing signal to obtain a second sensing result of the target, the second sensing result including a second speed and / or a second distance.

[0064] In one possible implementation, the processor is further configured to: perform perception based on the sensing signals received over the M time units to obtain a first perception result of the target, the first perception result including a first speed and / or a first distance; perform perception based on the echo signal of the first sensing signal to obtain a second perception result of the target, the second perception result including a second speed and / or a second distance; and obtain a target perception result of the target based on the first perception result and the second perception result.

[0065] Fifthly, embodiments of this application also provide a signal transmission device for implementing the methods described in the above aspects or any possible implementation thereof, the device including units for implementing the methods described in the above aspects or any possible implementation thereof.

[0066] Sixthly, this application also provides a computer-readable storage medium for storing a computer program including instructions for implementing the methods described in the foregoing aspects or any possible implementation thereof.

[0067] In a seventh aspect, this application also provides a computer program product containing instructions that, when executed on a computer or processor, cause the computer or processor to implement the methods described in the foregoing aspects or any possible implementation thereof.

[0068] Eighthly, this application also provides a chip device, which includes at least one processor and an interface circuit. The at least one processor transmits signals through the interface circuit, and when the at least one processor executes program code or instructions, it implements the methods described in the above aspects or any possible implementation thereof.

[0069] The signal transmission device, computer storage medium, computer program product, and chip device provided in this application embodiment are all used to execute the signal transmission method provided above. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the signal transmission method provided above, and will not be repeated here. Attached Figure Description

[0070] Figure 1 is a schematic block diagram of a signal transmission system 100 provided in an embodiment of this application;

[0071] Figure 2 is a schematic diagram of resource allocation for existing multi-carrier joint sensing methods;

[0072] Figure 3 is a schematic flowchart of the signal transmission method 200 provided in an embodiment of this application;

[0073] Figure 4 is a schematic diagram of the resource configuration of the sensing signal provided in an embodiment of this application;

[0074] Figure 5 is a schematic diagram of another resource configuration for sensing signals provided in an embodiment of this application;

[0075] Figure 6 is a schematic diagram of another resource configuration for the sensing signal provided in an embodiment of this application;

[0076] Figure 7 is a schematic diagram of another resource configuration for the sensing signal provided in an embodiment of this application;

[0077] Figure 8 is a schematic block diagram of the signal transmission device 300 provided in an embodiment of this application;

[0078] Figure 9 is a schematic block diagram of the signal transmission device 400 provided in an embodiment of this application;

[0079] Figure 10 is a schematic block diagram of a signal transmission device 500 provided in an embodiment of this application;

[0080] Figure 11 is a schematic block diagram of a signal transmission device 600 provided in an embodiment of this application. Detailed Implementation

[0081] The implementation of the embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0082] First, let me introduce the signal transmission system used in the signal transmission method and apparatus provided in the embodiments of this application.

[0083] Figure 1 shows a schematic block diagram of a signal transmission system 100 provided in an embodiment of this application. As shown in Figure 1, the system 100 may include a transmitting device 110, a receiving device 120, and at least one target (target 130 shown in Figure 1).

[0084] The transmitting device 110 is used to transmit a sensing signal on each of a plurality of carriers using the signal transmission method provided in the embodiments of this application;

[0085] The receiving device 120 is used to receive echo signals of the sensed signal on each carrier using the signal transmission method provided in the embodiments of this application; and to perform speed measurement based on the received multiple echo signals to obtain the speed of the target 130.

[0086] Optionally, the receiving device 120 is further configured to send capability reporting information to the transmitting device 110, the capability reporting information being used to indicate that the receiving device 120 supports the maximum capability to maintain phase continuity on the plurality of carriers; the transmitting device 110 is specifically configured to transmit a sensing signal on each carrier based on the capability reporting information.

[0087] Optionally, the system 100 may also include at least one communication device (communication device 140 shown in FIG1).

[0088] Optionally, the transmitting device 110 is also used to transmit data 1 to the communication device 140.

[0089] Optionally, the receiving device 120 is also used to receive data 2 sent by the communication device 140.

[0090] In other words, the communication device 140 can be used to receive data 1 from the transmitting device 110 and / or send data 2 to the receiving device 120.

[0091] Optionally, the specific form of the transmitting device 110 and the receiving device 120 is not limited in the embodiments of this application.

[0092] In one possible implementation, the transmitting device 110 and the receiving device 120 can be two independent devices.

[0093] For example, the transmitting device 110 can be a first network device, and the receiving device 120 can be a second network device.

[0094] For example, the transmitting device 110 can be a first terminal device, and the receiving device 120 can be a second terminal device.

[0095] For example, the transmitting device 110 can be a network device, and the receiving device 120 can be a terminal device.

[0096] For example, the transmitting device 110 can be a terminal device, and the receiving device 120 can be a network device.

[0097] In another possible implementation, the transmitting device 110 and the receiving device 120 can be integrated into the same device as functional modules or chip devices.

[0098] For example, the transmitting device 110 and the receiving device 120 can be integrated into a network device as functional modules or chip devices.

[0099] For example, the transmitting device 110 and the receiving device 120 can be integrated into the terminal device as functional modules or chip devices.

[0100] It should be noted that Figure 1 only schematically illustrates one target and one communication device, but the embodiments of this application are not limited thereto. Optionally, the system 100 may include two or more targets or two or more communication devices, and the embodiments of this application do not limit this.

[0101] It should be noted that Figure 1 only schematically shows one transmitting device and one receiving device, but the embodiments of this application are not limited thereto. Optionally, the system 100 may include two or more transmitting devices or two or more receiving devices, and the embodiments of this application do not limit this.

[0102] Optionally, the technical solutions of this application embodiment can be applied to various communication systems. For example, Global System for Mobile Communications (GSM), Long Term Evolution (LTE) system, Universal Mobile Telecommunication System (UMTS), 4th generation (4G) mobile communication system, 4.5th generation (4.5G) mobile communication system, Worldwide Interoperability for Microwave Access (WiMAX) communication system, 5th generation (5G) mobile communication system, or new radio access technology (NR). As communication technology continues to develop, the technical solutions of this application embodiment can also be used in subsequent evolved communication systems, such as 6th generation (6G) mobile communication system, 7th generation (7G) mobile communication system, etc. The technical solutions of this application embodiment can also be applied to Universal Mobile Telecommunications System (UMTS), Code Division Multiple Access (CDMA) system, Wireless Local Area Network (WLAN), Open RAN (O-RAN or ORAN), Cloud Radio Access Network (CRAN), etc.The technical solutions of this application embodiment can also be applied to vehicle-to-X (V2X), where V2X can include vehicle-to-network (V2N), vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P), Long Term Evolution-Vehicle (LTE-V), vehicle-to-everything (V2X), machine-type communication (MTC), Internet of Things (IoT), Long Term Evolution-Machine (LTE-M), machine-to-machine (M2M), etc.

[0103] Optionally, the communication device mentioned in the embodiments of this application can be various devices with wireless communication functions, such as network devices, terminal devices, etc., and the embodiments of this application do not limit this.

[0104] Optionally, the terminal device mentioned in the embodiments of this application may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem with wireless communication functions. The terminal device may be user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. Terminal devices can also be satellite phones, cellular phones, smartphones, wireless data cards, wireless modems, machine-type communication devices, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices or wearable devices, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical care, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, terminal devices in 5G networks or future communication networks, etc.

[0105] Optionally, the network device mentioned in the embodiments of this application may also be referred to as an access device or a wireless access network device. The network device may include, but is not limited to: an evolved node B (eNB), a baseband unit (BBU), an access point (AP), a wireless relay node, a wireless backhaul node, a transmission point (TP), a transmission reception point (TRP), or an integrated access and backhaul (IAB) or wireless access and backhaul (WAB) node in a Wi-Fi system. The network device may also be a gNB, TRP, or TP in a 5G system, or one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system. Furthermore, the network device may also be a network node constituting a gNB or TP, such as a BBU, or a distributed unit (DU). Alternatively, network devices can also be devices that perform network-side functions in device-to-device (D2D) communication systems, machine-to-machine (M2M) communication systems, Internet of Things (IoT) communication systems, vehicle-to-everything (V2X) communication systems, or other communication systems.

[0106] Optionally, the access device can be a device in a radio access network (RAN), or in other words, a RAN node that connects the terminal device to the wireless network. For example, taking the access device as an access network device, the access network device can be: gNB, transmission reception point (TRP), evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved Node B, or home Node B (HNB), base band unit (BBU), or wireless fidelity (Wi-Fi) access point (AP), etc., and this application embodiment does not limit this.

[0107] Optionally, the aforementioned RAN can be an open access network (O-RAN or ORAN) system. For example, RAN nodes may include central units (CU), distributed units (DU), CU-control plane (CP), CU-user plane (UP), or radio units (RU), etc. The CU may include CU-CP and CU-UP.

[0108] Optionally, the CU and DU can be configured separately, or they can be configured in the same network element. For example, the CU and DU can be configured in the baseband unit (BBU).

[0109] Optionally, the RU can be located in a radio frequency device or radio frequency unit. For example, the RU can be located in a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0110] Optionally, the access network equipment may include at least one CU, at least one DU, or at least one radio unit (RU).

[0111] Optionally, the CU may have some of the functions of the core network. The CU may be connected to the core network and at least one DU.

[0112] In existing multi-carrier joint sensing methods, the transmitting device sends sensing signals through multiple carriers respectively, and the receiving device performs joint sensing based on the echo signals received on multiple carriers to determine the target's position, velocity, etc. In this method, the resources of the sensing signals configured on multiple carriers are required to be aligned in the time domain, that is, the start point, symbol interval, period, etc. of the time domain symbols of the resources configured on each carrier are the same.

[0113] For example, taking the multi-carrier joint positioning of a target by a transmitting device and a receiving device using a first carrier and a second carrier as an example, Figure 2 shows a schematic diagram of the resource configuration of an existing multi-carrier joint sensing method. As shown in Figure 2, the transmitting device transmits a first sensing signal to the receiving device on the four first time units (such as the first symbol) indicated by the slash shaded area in the first carrier, and transmits a second sensing signal to the receiving device on the four second time units (such as the second symbol) indicated by the black shaded area in the second carrier. The four first time units and the four second time units are aligned in the time domain.

[0114] It should be noted that the alignment of multiple first symbols (such as 4 first symbols) and multiple second symbols (such as multiple second symbols) in the time domain mentioned in the embodiments of this application can be understood as: the time domain positions of multiple first symbols and multiple second symbols are the same, that is, the starting point, symbol interval, period, etc. of multiple first symbols and multiple second symbols are the same.

[0115] It should be noted that the length of time that the phase remains continuous determines the resolution of speed perception. That is, the longer the phase remains continuous, the higher the resolution of speed perception, and vice versa.

[0116] However, the resolution of velocity sensing is determined by the length of time the receiver maintains phase continuity across multiple carriers (i.e., the length of time from the first time unit to the fourth time unit). However, the receiver's maximum ability to maintain phase continuity across multiple carriers is limited, and the resource requirements of the sensing signals configured on multiple carriers are aligned in the time domain. Therefore, the resolution of velocity sensing is limited by the existing multi-carrier joint sensing method.

[0117] To address the problems existing in the prior art, this application provides a signal transmission method and apparatus. The method may include transmitting a first sensing signal over P first time units in a first carrier and transmitting a second sensing signal over Q second time units in a second carrier. The P first time units and Q second time units include M time units with the same time domain position, where P is greater than M and M is an integer greater than or equal to 1. Since the receiving device maintains phase continuity for a single carrier (e.g., the first carrier) for a period of 6 consecutive time units, which is longer than the receiving device maintains phase continuity for a multi-carrier system (e.g., the first carrier and the second carrier) for a period of 4 consecutive time units, the signal transmission method provided in this application can improve sensing performance, such as the resolution of speed sensing.

[0118] The signal transmission system 100 provided in the embodiments of this application has been described above with reference to Figure 1. The signal transmission method applied to the system 100 will be described in detail below with reference to Figures 3 to 7.

[0119] Figure 3 shows a schematic flowchart of a signal transmission method 200 provided in an embodiment of this application. As shown in Figure 3, the method 200 may include the following steps S201 to S202.

[0120] S201. The transmitting device transmits a first sensing signal on P first time units in the first carrier; correspondingly, the receiving device receives the echo signal of the first sensing signal on P first time units in the first carrier.

[0121] In one possible implementation, method 200 can be applied to the system 100 described above. For example, the transmitting device in method 200 can be the transmitting device 110 in the system 100 described above, and the receiving device in method 200 can be the receiving device 120 in the system 100 described above.

[0122] Optionally, the time unit (such as the first time unit) mentioned in the embodiments of this application can be a frame, a time slot, a symbol, etc. The embodiments of this application use a time unit as a symbol as an example for description, but the embodiments of this application are not limited to this.

[0123] S202. The transmitting device transmits a second sensing signal on Q second time units in the second carrier, wherein the P first time units and the Q second time units include M time units with the same time domain position, P is greater than M, and M is an integer greater than or equal to 1; correspondingly, the receiving device receives the echo signal of the second sensing signal on Q second time units in the second carrier.

[0124] Optionally, the method 200 may further include: the receiving device sensing based on the echo signals received in the M time units to obtain a first sensing result of the target, the first sensing result including a first speed and / or a first distance.

[0125] It should be noted that the echo signals received by the receiving device in the M time units may include: the echo signals of the first sensing signal received in the M time units in the first carrier, and the echo signals of the second sensing signal received in the M time units in the second carrier.

[0126] In other words, the receiving device can perform joint sensing based on the echo signals received within the same M time units on the first and second carriers to obtain the first sensing result of the target.

[0127] Optionally, the method 200 may further include: the receiving device sensing based on the echo signal of the first sensing signal to obtain a second sensing result of the target, the second sensing result including a second speed and / or a second distance.

[0128] In other words, the receiving device can sense the target based on the echo signal received on a single carrier wave and obtain a second sensing result.

[0129] Optionally, the method 200 may further include: the receiving device sensing based on the sensing signals received over the M time units to obtain a first sensing result of the target, the first sensing result including a first speed and / or a first distance; sensing based on the echo signal of the first sensing signal to obtain a second sensing result of the target, the second sensing result including a second speed and / or a second distance; and obtaining a target sensing result of the target based on the first sensing result and the second sensing result.

[0130] In other words, the receiving device can determine the final target sensing result based on the first sensing result obtained by joint sensing of multiple carriers and the second sensing result obtained by sensing a single carrier.

[0131] For example, taking a value of 6 for P, a value of 4 for Q, and a value of 4 for M, Figure 4 shows a schematic diagram of the resource configuration of the sensing signal provided in an embodiment of this application. As shown in Figure 4, the transmitting device can transmit a first sensing signal to the receiving device on the 6 first time units indicated by the slash shaded area in the first carrier, and transmit a second sensing signal to the receiving device on the 4 second time units indicated by the black shaded area in the second carrier. The 4 first time units and 4 second time units shown by the dashed box have the same time domain position.

[0132] Alternatively, the receiving device can sense based on the received echo signal in a variety of ways.

[0133] In one possible implementation, the receiving device can sense the target based on the echo signals received in the four time units (including echo signals of the first sensing signal received in the four first time units and echo signals of the second sensing signal received in the four second time units) to obtain a first sensing result of the target, which includes the first velocity of the target.

[0134] In another possible implementation, the receiving device can perceive the target based on the echo signal of the first sensing signal received in six first time units, and obtain a second sensing result of the target, which includes the second velocity of the target.

[0135] In another possible implementation, the receiving device can obtain a target perception result based on a first speed and a second speed, the target perception result including the target speed of the target. For example, the receiving device can perform weighted processing on the first speed and the second speed to obtain the target speed.

[0136] Optionally, in the embodiments of this application, the P first time units can be distributed at equal intervals or at unequal intervals, and the embodiments of this application do not limit this.

[0137] For example, Figure 4 only illustrates the distribution of P first time units at equal intervals, but the embodiments of this application are not limited to this.

[0138] Optionally, in the embodiments of this application, the interval between P first time units may be less than or equal to the interval between M time units, and the embodiments of this application do not limit this.

[0139] For example, Figure 4 only illustrates an interval where P first time units are equal to M time units, but the embodiments of this application are not limited thereto.

[0140] It should be noted that the length of time that the phase remains continuous determines the resolution of speed perception. That is, the longer the phase remains continuous, the higher the resolution of speed perception, and vice versa.

[0141] Since the receiving device maintains phase continuity for a single carrier (such as the first carrier) for a period of 6 consecutive time units, which is longer than the receiving device maintains phase continuity for a multi-carrier (such as the first carrier and the second carrier) for a period of 4 consecutive time units, the resolution of the second velocity and the resolution of the target velocity are both greater than the resolution of the first velocity.

[0142] In summary, the signal transmission method provided in the embodiments of this application can improve the resolution of speed perception.

[0143] In one possible implementation, the interval between the P first time units is less than the interval between the M time units.

[0144] For example, taking a value of 8 for P, a value of 4 for Q, and a value of 4 for M, Figure 5 shows another resource configuration diagram of the sensing signal provided in an embodiment of this application. As shown in Figure 5, the transmitting device can transmit a first sensing signal to the receiving device on the eight first time units indicated by the slash shaded area in the first carrier, and transmit a second sensing signal to the receiving device on the four second time units indicated by the black shaded area in the second carrier. The four first time units and four second time units indicated by the dashed box have the same time domain position.

[0145] Optionally, the receiving device can sense based on the received echo signal in a variety of ways, and the embodiments of this application do not limit this.

[0146] In one possible implementation, the receiving device can sense the target based on the echo signals received in the four time units (including echo signals of the first sensing signal received in the four first time units and echo signals of the second sensing signal received in the four second time units) to obtain a first sensing result of the target, which includes the first velocity of the target.

[0147] In another possible implementation, the receiving device can perceive the target based on the echo signal of the first sensing signal received in eight first time units, and obtain a second sensing result of the target, which includes the second velocity of the target.

[0148] In another possible implementation, the receiving device can obtain a target perception result based on a first speed and a second speed, the target perception result including the target speed of the target. For example, the receiving device can perform weighted processing on the first speed and the second speed to obtain the target speed.

[0149] Optionally, in the embodiments of this application, Q is greater than M.

[0150] Optionally, in the embodiments of this application, the Q second time units can be distributed at equal intervals or at unequal intervals, and the embodiments of this application do not limit this.

[0151] For example, Figure 5 only illustrates the distribution of Q second time units at equal intervals, but the embodiments of this application are not limited to this.

[0152] Optionally, in the embodiments of this application, the interval between Q second time units may be less than or equal to the interval between M time units, and the embodiments of this application do not limit this.

[0153] For example, Figure 5 only illustrates an interval where Q second time units equal M time units, but the embodiments of this application are not limited thereto.

[0154] It should be noted that the length of time that the phase remains continuous determines the resolution of speed perception. The longer the phase remains continuous, the higher the resolution of speed perception, and vice versa.

[0155] Since the receiving device maintains phase continuity for a single carrier (e.g., 8 consecutive time units) for a longer period than it maintains phase continuity for multiple carriers (e.g., 4 consecutive time units) on multiple carriers (e.g., the first carrier and the second carrier), the resolution of the second velocity and the resolution of the target velocity are both greater than the resolution of the first velocity.

[0156] In summary, the signal transmission method provided in the embodiments of this application can improve the resolution of speed perception.

[0157] It should also be noted that the transmission interval of the sensing signal determines the range of speed sensing. For example, the smaller the transmission interval, the larger the range of speed sensing, and vice versa.

[0158] Because the transmission interval of the receiving device on a single carrier (such as the first carrier) (i.e., the interval of the 8 first time units shown by the slash shaded area is 3 time units) is smaller than the transmission interval on multiple carriers (such as the first carrier and the second carrier) (i.e., the interval of the 4 time units shown by the dashed box is 7 time units), the range of sensing speed based on a single carrier is larger than the range of sensing speed based on multiple carriers.

[0159] In summary, the signal transmission method provided in this application embodiment can improve the range of speed perception.

[0160] For example, taking a value of P of 5, a value of Q of 7, and a value of M of 4, Figure 6 shows another resource configuration diagram of the sensing signal provided in an embodiment of this application. As shown in Figure 6, the transmitting device can transmit a first sensing signal to the receiving device on the 5 first time units indicated by the slash shaded area in the first carrier, and transmit a second sensing signal to the receiving device on the 7 second time units indicated by the black shaded area in the second carrier. The 4 first time units and 4 second time units shown by the dashed box have the same time domain position.

[0161] Optionally, the receiving device can sense based on the received echo signal in a variety of ways, and the embodiments of this application do not limit this.

[0162] In one possible implementation, the receiving device can sense the target based on the echo signals received in the four time units (including echo signals of the first sensing signal received in the four first time units and echo signals of the second sensing signal received in the four second time units) to obtain a first sensing result of the target, which includes the first velocity of the target.

[0163] In another possible implementation, the receiving device can perceive the target based on the echo signal of the first sensing signal received in five first time units, and obtain a second sensing result of the target, which includes the second velocity of the target.

[0164] In another possible implementation, the receiving device can obtain a target perception result based on a first speed and a second speed, the target perception result including the target speed of the target. For example, the receiving device can perform weighted processing on the first speed and the second speed to obtain the target speed.

[0165] In another possible implementation, the receiving device can perceive the target based on the echo signal of the second sensing signal received over seven second time units to obtain a fourth sensing result of the target, which includes the target's fourth velocity.

[0166] In another possible implementation, the receiving device can obtain a target perception result based on a first velocity and a fourth velocity, the target perception result including the target velocity of the target. For example, the receiving device can perform weighted processing on the first velocity and the fourth velocity to obtain the target velocity.

[0167] In another possible implementation, the receiving device can obtain a target perception result based on a first speed, a second speed, and a fourth speed, the target perception result including the target speed of the target. For example, the receiving device can perform weighted processing on the first speed, the second speed, and the fourth speed to obtain the target speed.

[0168] As can be seen from Figures 3 to 6, if the time length for maintaining phase continuity on a single carrier is greater than the time length for maintaining phase continuity on multiple carriers, then the resolution of the speed sensed by a single carrier is greater than the resolution of the speed sensed by multiple carriers; if the interval for transmitting sensing signals on a single carrier is less than the interval for transmitting sensing signals on multiple carriers, then the range of speed sensed by a single carrier is greater than the range of speed sensed by multiple carriers.

[0169] Therefore, in the embodiments of this application, the duration of phase continuity on different carriers and the interval of transmitted sensing signals can be flexibly configured to improve the resolution and range of speed sensing. To avoid repetition, various combinations will not be listed here.

[0170] Alternatively, P can be equal to Q.

[0171] For example, taking a value of 4 for P, a value of 4 for Q, and a value of 2 for M, Figure 6 shows another resource configuration diagram of the sensing signal provided in an embodiment of this application. As shown in Figure 6, the transmitting device can transmit a first sensing signal to the receiving device on the four first time units indicated by the slash shaded area in the first carrier, and transmit a second sensing signal to the receiving device on the four second time units indicated by the black shaded area in the second carrier. The two first time units and two second time units shown by the dashed box have the same time domain position.

[0172] Comparing Figure 2 and Figure 7, it can be seen that the number of resources included in Figure 7 and Figure 2 is the same, namely 4 first time units and 4 second time units.

[0173] Furthermore, the time length during which the receiving device maintains phase continuity on the second carrier (i.e., the time length between the first and fourth second time units shown in the black shaded area) in Figure 7 is greater than the time length during which it maintains phase continuity on the first and second carriers. Therefore, without increasing resource overhead, the speed sensing resolution can be improved by using the signal transmission method provided in the embodiments of this application.

[0174] It should be noted that the transmitting and receiving devices in the embodiments of this application can transmit sensing signals on multiple carriers. Method 200 is only described with the example of the multiple carriers including the first carrier and the second carrier, but the embodiments of this application are not limited thereto.

[0175] For example, the plurality of carriers may further include a third carrier, and the transmitting device may further transmit a third sensing signal on R third time units within the third carrier. The P first time units, the Q second time units, and the R third time units include M time units with the same time domain position. The relationship between R and M can be referenced to the relationship between P and M, or to the relationship between Q and M. Accordingly, the receiving end can perform velocity measurement based on the echo signals received on the plurality of carriers; to avoid repetition, this will not be elaborated further here.

[0176] Optionally, before S201 and S202, the method 200 may further include: the receiving device sending capability reporting information to the transmitting device, the capability reporting information being used to indicate that the maximum capability of the receiving device to maintain phase continuity on the first carrier and the second carrier is N consecutive time units, the N consecutive time units including the M time units.

[0177] Accordingly, S201 may include: the transmitting device transmitting the first sensing signal on the P first time units in the first carrier based on the capability reporting information.

[0178] Accordingly, S202 may include: the transmitting device transmitting the second sensing signal on the Q second time units in the first carrier based on the capability reporting information.

[0179] Optionally, the capability reporting information can be indicated by at least one bit.

[0180] For example, taking the capability reporting information indicated by 3 bits, "000" indicates that the maximum capability of the receiving device to maintain continuous phase on the first carrier and the second carrier is 1 consecutive time unit; "001" indicates that the maximum capability of the receiving device to maintain continuous phase on the first carrier and the second carrier is 2 consecutive time units; "010" indicates that the maximum capability of the receiving device to maintain continuous phase on the first carrier and the second carrier is 3 consecutive time units; "011" indicates that the maximum capability of the receiving device to maintain continuous phase on the first carrier and the second carrier is 4 consecutive time units; "100" indicates that the maximum capability of the receiving device to maintain continuous phase on the first carrier and the second carrier is 5 consecutive time units; "101" indicates that the maximum capability of the receiving device to maintain continuous phase on the first carrier and the second carrier is 6 consecutive time units; "110" indicates that the maximum capability of the receiving device to maintain continuous phase on the first carrier and the second carrier is 7 consecutive time units; and "111" indicates that the maximum capability of the receiving device to maintain continuous phase on the first carrier and the second carrier is 8 consecutive time units.

[0181] Optionally, if the transmitting device and the receiving device are independent devices, before S201 and S202, the transmitting device may send resource configuration information to the receiving device, which is used to indicate P first time units on the first carrier and Q second time units on the second carrier.

[0182] Accordingly, S201 may include: the transmitting device transmitting the first sensing signal on the P first time units in the first carrier based on the resource configuration information.

[0183] Accordingly, S202 may include: the transmitting device transmitting the second sensing signal on the Q second time units in the first carrier based on the resource configuration information.

[0184] Optionally, the resource configuration information can be determined in various ways, and this application embodiment does not limit this.

[0185] In one possible implementation, the resource configuration information can be determined based on the information reported by the capability.

[0186] Optionally, the transmitting device may send the resource configuration information to the receiving device in various ways, and this application embodiment does not limit this.

[0187] In one possible implementation, the resource configuration information can be carried in an RRC message.

[0188] The signal transmission method provided by the embodiments of this application has been described above with reference to Figures 2 to 7. The signal transmission device provided by the embodiments of this application will be further described below.

[0189] Figure 8 shows a schematic block diagram of a signal transmission device 300 provided in an embodiment of this application. As shown in Figure 8, the device 300 may include a transmitting unit 301.

[0190] Optionally, the device 300 can be used in the signal transmission system 100 described above. Further, the device 300 can be used in the transmitting device 110 in the signal transmission system 100, such as a virtual device formed by software executed by a processor or controller on the transmitting device 110.

[0191] The transmitting unit 301 is used to transmit a first sensing signal on P first time units in a first carrier and transmit a second sensing signal on Q second time units in a second carrier, wherein the P first time units and the Q second time units include M time units with the same time domain position, P is greater than M, and M is an integer greater than or equal to 1.

[0192] In one possible implementation, P equals Q.

[0193] In one possible implementation, the interval between the P first time units is less than the interval between the M time units.

[0194] In one possible implementation, the interval between the Q second time units is smaller than the interval between the M time units.

[0195] In one possible implementation, the device 300 may further include a receiving unit 302, which is configured to receive capability reporting information from the receiving device. The capability reporting information indicates that the maximum capability of the receiving device to maintain phase continuity on the first carrier and the second carrier is N consecutive time units, where the N consecutive time units include the M time units. The transmitting unit 301 is specifically configured to transmit the first sensing signal on the P first time units in the first carrier based on the capability reporting information; and to transmit the second sensing signal on the Q second time units in the second carrier, which includes transmitting the second sensing signal on the Q second time units in the second carrier based on the capability reporting information.

[0196] It should be noted that the information interaction and execution process between the above-mentioned devices are based on the same concept as the method 200 embodiment of this application. Their specific functions and technical effects can be found in the method embodiment section, and will not be repeated here. In an optional example, the device 300 can specifically be the sending device in the above-mentioned method 200 embodiment. The device 300 can be used to execute the various processes and / or steps corresponding to the sending device in the above-mentioned method 200 embodiment. To avoid repetition, these will not be repeated here.

[0197] One or more of the modules in the embodiments shown in Figure 8 can be implemented by software, hardware, firmware, or a combination thereof. The software or firmware includes, but is not limited to, computer program instructions or code, and can be executed by a hardware processor. The hardware includes, but is not limited to, various integrated circuits, such as central processing units (CPUs), digital signal processors (DSPs), field-programmable gate arrays (FPGAs), or application-specific integrated circuits (ASICs).

[0198] Figure 9 shows a schematic block diagram of a communication device 400 provided in an embodiment of this application. The device 400 may include a processor 401 and a communication interface 402, which are coupled together.

[0199] In an alternative example, those skilled in the art will understand that the device 400 may specifically be the transmitting device in the above-described method 200 embodiment, and the device 400 may be the physical hardware structure of the transmitting device. The device 400 may be used to execute the various processes and / or steps corresponding to the transmitting device in the above-described method 200 embodiment, and will not be described again here to avoid repetition.

[0200] The processor 401 in this embodiment may include one or more processing units. Optionally, the processing unit may include, but is not limited to, a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA, discrete gate or transistor logic devices, or discrete hardware components. The general-purpose processor may be a microprocessor, a microcontroller, or any conventional processor.

[0201] For example, the processor 401 is used to transmit a first sensing signal on P first time units in a first carrier through the communication interface; and to transmit a second sensing signal on Q second time units in a second carrier through the communication interface, wherein the P first time units and the Q second time units include M time units with the same time domain position, P is greater than M, and M is an integer greater than or equal to 1.

[0202] Optionally, the device 400 may also include a memory 403.

[0203] Memory 403 can be volatile memory or non-volatile memory, or may include both. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM).

[0204] Specifically, memory 403 is used to store the program code and instructions of device 400. Optionally, memory 403 is also used to store data obtained by processor 401 during the execution of the above method 200, such as capability reporting information.

[0205] Alternatively, the memory 403 may be a separate device or integrated into the processor 401.

[0206] It should be noted that Figure 9 only shows a simplified design of the device 400. In practical applications, the device 400 may also include other necessary components, including but not limited to any number of communication interfaces, processors, selectors, memories, etc., and all devices 400 that can implement this application are within the protection scope of this application.

[0207] In one possible design, the device 400 can be a chip. Optionally, the chip may further include one or more memories for storing computer-executable instructions, which, when the chip device is running, can be executed by a processor to cause the chip to perform the steps performed by the sending device described in method 200 above.

[0208] Optionally, the chip device can be a field-programmable gate array, a dedicated integrated circuit, a system-on-a-chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, or a programmable controller or other integrated chip to implement the relevant functions.

[0209] Figure 10 shows a schematic block diagram of a signal transmission device 500 provided in an embodiment of this application. As shown in Figure 10, the device 500 may include a receiving unit 501.

[0210] Optionally, the device 500 can be used in the signal transmission system 100 described above. Further, the device 500 can be used in the receiving device 120 in the signal transmission system 100, such as a virtual device formed by software executed by a processor or controller on the receiving device 120.

[0211] The receiving unit 501 is used to receive the echo signal of the first sensing signal on P first time units in the first carrier and to receive the echo signal of the second sensing signal on Q second time units in the second carrier, wherein the P first time units and the Q second time units include M time units with the same time domain position, P is greater than M, and M is an integer greater than or equal to 1.

[0212] In one possible implementation, P equals Q.

[0213] In one possible implementation, the interval between the P first time units is less than the interval between the M time units.

[0214] In one possible implementation, the interval between the Q second time units is smaller than the interval between the M time units.

[0215] In one possible implementation, the device 500 may further include a transmitting unit 502, which is used to transmit capability reporting information to the transmitting device. The capability reporting information is used to indicate that the maximum capability of the receiving device to maintain phase continuity on the first carrier and the second carrier is N consecutive time units, and the N consecutive time units include the M time units.

[0216] In one possible implementation, the device 500 may further include a sensing unit 503, which is used to sense based on the echo signals received over the M time units to obtain a first sensing result of the target, the first sensing result including a first speed and / or a first distance.

[0217] In one possible implementation, the device 500 may further include a sensing unit 503, which is used to sense based on the echo signal of the first sensing signal to obtain a second sensing result of the target, the second sensing result including a second speed and / or a second distance.

[0218] In one possible implementation, the device 500 may further include a sensing unit 503, which is used to sense based on the sensing signals received over the M time units to obtain a first sensing result of the target, the first sensing result including a first speed and / or a first distance; to sense based on the echo signal of the first sensing signal to obtain a second sensing result of the target, the second sensing result including a second speed and / or a second distance; and to obtain a target sensing result of the target based on the first sensing result and the second sensing result.

[0219] It should be noted that the information interaction and execution process between the above-mentioned devices are based on the same concept as the method 300 embodiment of this application. Their specific functions and technical effects can be found in the method embodiment section, and will not be repeated here. In an optional example, the device 500 can specifically be the receiving device in the method 200 embodiment described above. The device 500 can be used to execute the various processes and / or steps corresponding to the receiving device in the method 300 embodiment described above. To avoid repetition, these will not be repeated here.

[0220] One or more of the modules in the embodiment shown in Figure 10 can be implemented by software, hardware, firmware, or a combination thereof. The software or firmware includes, but is not limited to, computer program instructions or code, and can be executed by a hardware processor. The hardware includes, but is not limited to, various integrated circuits such as CPUs, DSPs, FPGAs, or ASICs.

[0221] Figure 11 shows a schematic block diagram of a signal transmission device 600 provided in an embodiment of this application. The signal transmission device 600 may include a processor 601 and a communication interface 602, which are coupled together.

[0222] In an optional example, those skilled in the art will understand that the device 600 may specifically be the receiving device in the above-described method 200 embodiment, and the device 600 may be the physical hardware structure of the receiving device. The device 600 may be used to execute the various processes and / or steps corresponding to the receiving device in the above-described method 200 embodiment, and will not be described again here to avoid repetition.

[0223] The processor 601 in this embodiment may include one or more processing units. Optionally, the processing unit may include, but is not limited to, a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA, discrete gate or transistor logic devices, or discrete hardware components. The general-purpose processor may be a microprocessor, a microcontroller, or any conventional processor.

[0224] For example, the processor 601 is configured to receive echo signals of a first sensing signal on P first time units in a first carrier wave via a communication interface 602; and to receive echo signals of a second sensing signal on Q second time units in a second carrier wave via the communication interface 602, wherein the P first time units and the Q second time units include M time units with the same time domain position, where P is greater than M and M is an integer greater than or equal to 1. Optionally, the device 600 may further include a memory 603.

[0225] Memory 603 may be volatile memory or non-volatile memory, or may include both. Non-volatile memory may be ROM, PROM, EPROM, EEPROM, or flash memory. Volatile memory may be RAM, which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as SRAM, DRAM, SDRAM, DDR SDRAM, ESDRAM, SLDRAM, and DR RAM.

[0226] Specifically, memory 603 is used to store program code and instructions of device 600. Optionally, memory 603 is also used to store data obtained by processor 601 during the execution of the above-described method 300 embodiments, such as capability reporting information.

[0227] Alternatively, the memory 603 may be a separate device or integrated into the processor 601.

[0228] It should be noted that Figure 11 only shows a simplified design of the device 600. In practical applications, the device 600 may also include other necessary components, including but not limited to any number of communication interfaces, processors, selectors, memories, etc., and all devices 600 that can implement this application are within the protection scope of this application.

[0229] In one possible design, the device 600 can be a chip. Optionally, the chip may further include one or more memories for storing computer-executable instructions, which, when the chip device is running, can be executed by a processor to cause the chip to perform the steps performed by the receiving device as described in method 300 above.

[0230] Optionally, the chip device can be a field-programmable gate array, a dedicated integrated circuit, a system-on-a-chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, or a programmable controller or other integrated chip to implement the relevant functions.

[0231] This application also provides a computer-readable storage medium storing computer instructions that, when executed on a computer, implement the signal transmission method described in the above method embodiments.

[0232] This application also provides a computer program product that, when run on a processor, implements the signal transmission method described in the above method embodiments.

[0233] The signal transmission device, computer-readable storage medium, computer program product, or chip provided in the embodiments of this application are all used to execute the corresponding methods provided above. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects described in the corresponding methods provided above, and will not be repeated here.

[0234] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0235] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0236] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0237] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0238] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0239] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0240] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the 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 to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0241] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A signal transmission method, characterized in that, include: The first sensing signal is transmitted on P first time units in the first carrier; A second sensing signal is transmitted on Q second time units in the second carrier, wherein the P first time units and the Q second time units include M time units with the same time domain position, where P is greater than M and M is an integer greater than or equal to 1.

2. The method according to claim 1, characterized in that, P equals Q.

3. The method according to claim 1 or 2, characterized in that, The interval between the P first time units is less than the interval between the M time units.

4. The method according to any one of claims 1-3, characterized in that, The interval between the Q second time units is less than the interval between the M time units.

5. The method according to any one of claims 1-4, characterized in that, The method further includes: The receiving device receives capability reporting information, which indicates that the maximum capability of the receiving device to maintain phase continuity on the first carrier and the second carrier is N consecutive time units, wherein the N consecutive time units include the M time units. The transmission of the first sensing signal on P first time units in the first carrier includes: Based on the capability reporting information, the first sensing signal is transmitted on the P first time units in the first carrier. The transmission of the second sensing signal on Q second time units in the second carrier includes: Based on the capability reporting information, the second sensing signal is transmitted on the Q second time units in the second carrier.

6. A signal transmission method, characterized in that, include: The echo signal of the first sensing signal is received on P first time units in the first carrier. The echo signal of the second sensing signal is received on Q second time units in the second carrier, wherein the P first time units and the Q second time units include M time units with the same time domain position, P is greater than M, and M is an integer greater than or equal to 1.

7. The method according to claim 6, characterized in that, P equals Q.

8. The method according to claim 6 or 7, characterized in that, The interval between the P first time units is less than the interval between the M time units.

9. The method according to any one of claims 6-8, characterized in that, The interval between the Q second time units is less than the interval between the M time units.

10. The method according to any one of claims 6-9, characterized in that, The method further includes: The capability reporting information is sent to the transmitting device to indicate that the maximum capability of the receiving device to maintain phase continuity on the first carrier and the second carrier is N consecutive time units, wherein the N consecutive time units include the M time units.

11. The method according to any one of claims 6-10, characterized in that, The method further includes: Based on the echo signals received over the M time units, a first perception result of the target is obtained, which includes a first speed and / or a first distance.

12. The method according to any one of claims 6-11, characterized in that, The method further includes: Based on the echo signal of the first sensing signal, a second sensing result of the target is obtained, which includes a second speed and / or a second distance.

13. The method according to any one of claims 6-12, characterized in that, The method further includes: Based on the sensing signals received in the M time units, a first sensing result of the target is obtained, which includes a first speed and / or a first distance; Based on the echo signal of the first sensing signal, a second sensing result of the target is obtained, which includes a second speed and / or a second distance; Based on the first perception result and the second perception result, the target perception result of the target is obtained.

14. A signal transmission device, characterized in that, include: A processor and a communication interface, the processor being coupled to the communication interface, the processor being used for: The first sensing signal is transmitted through the communication interface on P first time units in the first carrier. The second sensing signal is transmitted through the communication interface on Q second time units in the second carrier, wherein the P first time units and the Q second time units include M time units with the same time domain position, where P is greater than M and M is an integer greater than or equal to 1.

15. The apparatus according to claim 14, characterized in that, P equals Q.

16. The apparatus according to claim 14 or 15, characterized in that, The interval between the P first time units is less than the interval between the M time units.

17. The apparatus according to any one of claims 14-16, characterized in that, The interval between the Q second time units is less than the interval between the M time units.

18. The apparatus according to any one of claims 14-17, characterized in that, The processor is also used for: The receiving device receives capability reporting information through the communication interface. The capability reporting information is used to indicate that the maximum capability of the receiving device to maintain phase continuity on the first carrier and the second carrier is N consecutive time units, and the N consecutive time units include the M time units. The processor is specifically used for: Based on the capability reporting information, the first sensing signal is transmitted through the communication interface on the P first time units in the first carrier; Based on the capability reporting information, the second sensing signal is transmitted through the communication interface on the Q second time units in the second carrier.

19. A signal transmission device, characterized in that, include: A processor and a communication interface, the processor being coupled to the communication interface, the processor being used for: The echo signal of the first sensing signal is received through the communication interface on P first time units in the first carrier. The echo signal of the second sensing signal is received through the communication interface on Q second time units in the second carrier, wherein the P first time units and the Q second time units include M time units with the same time domain position, P is greater than M, and M is an integer greater than or equal to 1.

20. The apparatus according to claim 19, characterized in that, P equals Q.

21. The apparatus according to claim 19 or 20, characterized in that, The interval between the P first time units is less than the interval between the M time units.

22. The apparatus according to any one of claims 19-21, characterized in that, The interval between the Q second time units is less than the interval between the M time units.

23. The apparatus according to any one of claims 19-22, characterized in that, The processor is also used for: The capability reporting information is sent to the transmitting device through the communication interface. The capability reporting information is used to indicate that the maximum capability of the receiving device to maintain phase continuity on the first carrier and the second carrier is N consecutive time units, and the N consecutive time units include the M time units.

24. The apparatus according to any one of claims 19-23, characterized in that, The processor is also used for: Based on the echo signals received over the M time units, a first perception result of the target is obtained, which includes a first speed and / or a first distance.

25. The apparatus according to any one of claims 19-24, characterized in that, The processor is also used for: Based on the echo signal of the first sensing signal, a second sensing result of the target is obtained, which includes a second speed and / or a second distance.

26. The apparatus according to any one of claims 19-25, characterized in that, The processor is also used for: Based on the sensing signals received in the M time units, a first sensing result of the target is obtained, which includes a first speed and / or a first distance; Based on the echo signal of the first sensing signal, a second sensing result of the target is obtained, which includes a second speed and / or a second distance; Based on the first perception result and the second perception result, the target perception result of the target is obtained.

27. A computer-readable storage medium, characterized in that, Used to store a computer program, which, when executed by a processor, implements the method as described in any one of claims 1-13.

28. A computer program product, characterized in that, When the computer program product is run on a processor, it implements the method as described in any one of claims 1-13.

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