Communication method and communication apparatus

Abstract

The present application provides a communication method and a communication apparatus. The method comprises: in a DC scenario, if the transmission of a first signal by a terminal device and the transmission of a second signal by the terminal device overlap in time, and when a first transmission power of the terminal device when transmitting the first signal on a first carrier and a second transmission power of the terminal device when transmitting the second signal on a second carrier are greater than the maximum transmission power of the terminal device, the terminal device can allocate the maximum transmission power of the terminal device on the basis of any of three ways of power spectral density alignment, equal power allocation, and priority allocation of power to high and low frequency resource units, such that a third transmission power of the terminal device when transmitting the first signal on the first carrier and a fourth transmission power of the terminal device when transmitting the second signal on the second carrier are effectively controlled, thereby preventing the third transmission power and the fourth transmission power from being greater than the maximum transmission power of the terminal device.

Description

Communication method and communication device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on January 11, 2024, with application number 202410050228.5 and application name “A Communication Method and Communication Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and more specifically, to a communication method and a communication device. Background Art

[0003] In the LTE system, a terminal device supports simultaneous access to two network devices. This access mode is called dual connectivity (DC), where one network device is the primary network device and the other network device is the secondary network device. One or more cells that the primary network device provides services to the terminal device are called a master cell group (MCG), and one or more cells that the secondary network device provides services to the terminal device are called a secondary cell group (SCG).

[0004] In order to increase the rate at which terminal devices send uplink signals to network devices, terminal devices that usually work in DC mode can send uplink signals to network devices on carriers in MCG and SCG at the same time in the same time period. However, the total power of uplink signals sent by terminal devices on all carriers is often limited. In related technologies, when the total power of uplink signals sent by terminal devices on all carriers is greater than the maximum transmit power of the terminal device, the terminal device can reduce the power of the uplink signal based on the type of transmitted signal. However, this power control method is only suitable for application scenarios where the transmitted signal is a communication signal, and is not suitable for scenarios where the transmitted signal is a perception signal or a synaesthesia signal.

[0005] Therefore, how terminal devices operating in DC mode can effectively control the transmission power of signals when sending perception signals or synaesthesia signals is an issue that currently needs attention. Summary of the Invention

[0006] This application provides a communication method and communication device. This method redefines the power allocation scheme based on three methods: aligning power spectrum density, equalizing power, and prioritizing power allocation for high- and low-frequency resource units. This allows a terminal device to effectively control the signal transmission power when simultaneously transmitting a perception signal on two different carriers.

[0007] In a first aspect, a communication method is provided. The method provided in the first aspect can be executed by a terminal device or by a chip configured in the terminal device, and this application does not limit this.

[0008] Specifically, the method includes: determining a first transmit power of a first signal within a first time unit on a first carrier, and determining a second transmit power of a second signal within a second time unit on a second carrier, wherein the first time unit and the second time unit overlap, and when the sum of the first transmit power and the second transmit power is greater than a transmit power threshold, determining a third transmit power of the first signal within the first time unit, the third transmit power being less than or equal to the first transmit power, and determining a fourth transmit power of the second signal within the second time unit, the fourth transmit power being less than or equal to the second transmit power; wherein the frequency domain power spectral density of transmitting the first signal is equal to the frequency domain power spectral density of transmitting the second signal; or, the third transmit power is equal to the fourth transmit power; or, the power spectral density of the first frequency domain resource of the first signal on the first carrier is greater than the power spectral density of the fourth frequency domain resource on the second carrier, the frequency of the first carrier is less than the frequency of the second carrier, the frequency of the first frequency domain resource is less than the frequency of the second frequency domain resource, and the frequency of the third frequency domain resource is less than the frequency of the fourth frequency domain resource.

[0009] The method provided in the first aspect, in a DC scenario, if the terminal device has an overlap in the time of sending the first signal and the second signal, and the sum of the first transmission power and the second transmission power is greater than the transmission power threshold, the transmission power of the terminal device can be allocated using any one of the above three methods, so that the third transmission power when the terminal device sends the first signal on the first carrier and the fourth transmission power when the terminal device sends the second signal on the second carrier can be effectively controlled to avoid the third transmission power and the fourth transmission power being greater than the maximum transmission power of the terminal device.

[0010] It should be noted that the first time unit may also be a first time period, and the first time unit may be a subframe unit, a time slot unit, a micro-time slot unit, a symbol unit, etc. The first time period may also include multiple subframe units, multiple time slot units, multiple micro-time slot units, and multiple symbol units, etc. The second time unit may also be a second time period, and the second time unit may also be a subframe unit, a time slot unit, a micro-time slot unit, a symbol unit, etc. The second time period may also include multiple subframe units, multiple time slot units, multiple micro-time slot units, and multiple symbol units, etc. The time lengths of the first time unit and the second time unit may be the same or different. The time lengths of the first time period and the second time period may be the same or different, and the embodiments of the present application do not specifically limit this.

[0011] It should also be noted that the power spectrum density of the first frequency domain resource of the first signal on the first carrier is greater than the power spectrum density of the second frequency domain resource on the first carrier, and the power spectrum density of the third frequency domain resource of the second signal on the second carrier is greater than the power spectrum density of the fourth frequency domain resource on the second carrier. It can be understood that the transmission power of the terminal device is preferentially allocated to the first frequency domain resource in the first carrier and the fourth frequency domain resource in the second carrier, that is, the terminal device allocates transmission power to the first frequency domain resource in the first carrier and the fourth frequency domain resource in the second carrier according to the size of the transmission power. After the allocation of the first frequency domain resource in the first carrier and the fourth frequency domain resource in the second carrier is completed, the transmission power is allocated to the second frequency domain resource in the first carrier and the third frequency domain resource in the second carrier according to the size of the remaining transmission power.

[0012] It should be understood that the first frequency domain resources may include a resource unit, such as a subcarrier, or may include multiple resource units, such as multiple subcarriers, etc. Similarly, the second frequency domain resources may also include a resource unit or multiple resource units, the third frequency domain resources may also include a resource unit or multiple resource units, and the fourth frequency domain resources may also include a resource unit or multiple resource units.

[0013] For example, in an embodiment of the present application, the first signal can be any one of a communication signal, a perception signal or a synaesthesia signal, and the second signal can also be any one of a communication signal, a perception signal or a synaesthesia signal. The first signal and the second signal can be the same or different.

[0014] Optionally, when the frequency domain power spectral density of the first signal is equal to the frequency domain power spectral density of the second signal, and the bandwidth of the first signal is greater than the bandwidth of the second signal, the third transmit power is greater than the fourth transmit power.

[0015] Optionally, when the third transmit power is equal to the fourth transmit power and the bandwidth of the first signal is greater than the bandwidth of the second signal, the frequency domain power spectral density of the first signal is less than the frequency domain power spectral density of the second signal.

[0016] In a possible implementation of the first aspect, before determining the third transmit power of the first signal in the first time unit and determining the fourth transmit power of the second signal in the second time unit, the method further includes: receiving first indication information sent by a network device, the first indication information being used to instruct a terminal device on a power allocation method for sending the first signal on the first carrier and for sending the second signal on the second carrier;

[0017] Determining the third transmit power and the fourth transmit power according to the first indication information includes: when the first indication information indicates the first power allocation method, the frequency domain power spectral density of sending the first signal and the frequency domain power spectral density of sending the second signal are equal, or the third transmit power and the fourth transmit power are equal; when the first indication information indicates the second power allocation method, the power spectral density of the first frequency domain resource of the first signal on the first carrier is greater than the power spectral density of the second frequency domain resource on the first carrier, and the power spectral density of the second signal on the third frequency domain resource on the second carrier is greater than the power spectral density of the second frequency domain resource on the fourth carrier.

[0018] In this implementation method, after receiving the first indication information, the terminal device can determine the allocation method of the third transmit power and the fourth transmit power based on the first indication information of the network device, so that the sum of the third transmit power and the fourth transmit power is not greater than the maximum transmit power of the terminal device.

[0019] In the second aspect, a communication method is provided. The method provided in the second aspect can be executed by a network device or by a chip configured in the network device, and this application does not limit this.

[0020] Specifically, the method includes: receiving a first signal sent by a terminal device using a third transmission power in a first time unit on a first carrier, and a second signal sent using a fourth transmission power in a second time unit on a second carrier; wherein the frequency domain power spectrum density of the first signal is equal to the frequency domain power spectrum density of the second signal; or, the third transmission power is equal to the fourth transmission power; or, the power spectrum density of the first signal in the first frequency domain resource on the first carrier is greater than the power spectrum density of the fourth frequency domain resource on the second carrier, the frequency of the first carrier is less than the frequency of the second carrier, the frequency of the first frequency domain resource is less than the frequency of the second frequency domain resource, and the frequency of the third frequency domain resource is less than the frequency of the fourth frequency domain resource.

[0021] The method provided in the first aspect is that, in a DC scenario, a network device can receive a first signal sent by a terminal device using a third transmission power and a second signal sent using a fourth transmission power, wherein the third transmission power and the fourth transmission power satisfy any one of the above three methods, so that the third transmission power of the first signal received by the network device on the first carrier and the fourth transmission power of the second signal received on the second carrier can be effectively controlled to avoid the third transmission power and the fourth transmission power being greater than the maximum transmission power of the terminal device.

[0022] It should be noted that the first time unit may also be a first time period, and the first time unit may be a subframe unit, a time slot unit, a micro-time slot unit, a symbol unit, etc. The first time period may also include multiple subframe units, multiple time slot units, multiple micro-time slot units, and multiple symbol units, etc. The second time unit may also be a second time period, and the second time unit may also be a subframe unit, a time slot unit, a micro-time slot unit, a symbol unit, etc. The second time period may also include multiple subframe units, multiple time slot units, multiple micro-time slot units, and multiple symbol units, etc. The time lengths of the first time unit and the second time unit may be the same or different. The time lengths of the first time period and the second time period may be the same or different, and the embodiments of the present application do not specifically limit this.

[0023] It should also be noted that the power spectrum density of the first frequency domain resource of the first signal on the first carrier is greater than the power spectrum density of the second frequency domain resource on the first carrier, and the power spectrum density of the third frequency domain resource of the second signal on the second carrier is greater than the power spectrum density of the fourth frequency domain resource on the second carrier. It can be understood that the transmission power of the terminal device is preferentially allocated to the first frequency domain resource in the first carrier and the fourth frequency domain resource in the second carrier, that is, the terminal device allocates transmission power to the first frequency domain resource in the first carrier and the fourth frequency domain resource in the second carrier according to the size of the transmission power. After the allocation of the first frequency domain resource in the first carrier and the fourth frequency domain resource in the second carrier is completed, the transmission power is allocated to the second frequency domain resource in the first carrier and the third frequency domain resource in the second carrier according to the size of the remaining transmission power.

[0024] It should be understood that the first frequency domain resources may include a resource unit, such as a subcarrier, or may include multiple resource units, such as multiple subcarriers, etc. Similarly, the second frequency domain resources may also include a resource unit or multiple resource units, the third frequency domain resources may also include a resource unit or multiple resource units, and the fourth frequency domain resources may also include a resource unit or multiple resource units.

[0025] For example, in an embodiment of the present application, the first signal can be any one of a communication signal, a perception signal or a synaesthesia signal, and the second signal can also be any one of a communication signal, a perception signal or a synaesthesia signal. The first signal and the second signal can be the same or different.

[0026] Optionally, when the frequency domain power spectral density of the first signal is equal to the frequency domain power spectral density of the second signal, and the bandwidth of the first signal is greater than the bandwidth of the second signal, the third transmit power is greater than the fourth transmit power.

[0027] Optionally, when the third transmit power is equal to the fourth transmit power and the bandwidth of the first signal is greater than the bandwidth of the second signal, the frequency domain power spectral density of the first signal is less than the frequency domain power spectral density of the second signal.

[0028] In a possible implementation of the second aspect, before receiving a first signal sent by a terminal device using a third transmission power within a first time unit on a first carrier, and a second signal sent using a fourth transmission power within a second time unit on a second carrier, the method further includes: sending first indication information to the terminal device, the first indication information being used to indicate a power allocation method for the terminal device to send the first signal on the first carrier and the second signal on the second carrier; the power allocation method including: when the first indication information indicates a first power allocation method, the frequency domain power spectral density of the first signal and the frequency domain power spectral density of the second signal are equal, or the third transmission power and the fourth transmission power are equal; when the first indication information indicates a second power allocation method, the power spectral density of the first signal in the first frequency domain resource on the first carrier is greater than the power spectral density of the second frequency domain resource on the first carrier, and the power spectral density of the second signal in the third frequency domain resource on the second carrier is greater than the power spectral density of the second frequency domain resource on the fourth carrier.

[0029] In a third aspect, a communication system is provided, which includes a terminal device and a network device, wherein the terminal device is used to execute the method in the above first aspect or any possible implementation of the first aspect, and the network device is used to execute the method in the above second aspect or any possible implementation of the second aspect.

[0030] In a fourth aspect, a communication device is provided, which includes a unit for executing each step in the above first aspect or any possible implementation of the first aspect, or a unit for executing each step in the above second aspect or any possible implementation of the second aspect.

[0031] In a fifth aspect, a communication device is provided, which includes at least one processor and a memory, the processor and the memory are coupled, the memory stores program instructions, and when the program instructions stored in the memory are executed by the processor, the method in the above first aspect or any possible implementation of the first aspect, or the method in the above second aspect or any possible implementation of the second aspect is executed.

[0032] In a sixth aspect, a communication device is provided, which includes at least one processor and an interface circuit, and the at least one processor is used to execute the method in the above first aspect or any possible implementation of the first aspect, or the method in the above second aspect or any possible implementation of the second aspect.

[0033] In the seventh aspect, a computer program product is provided, which includes a computer program. When the computer program is executed by a processor, it is used to execute the method in the above first aspect or any possible implementation of the first aspect, or the method in the above second aspect or any possible implementation of the second aspect.

[0034] In an eighth aspect, a computer-readable storage medium is provided, which stores a computer program. When the computer program is executed, it is used to execute the method in the above first aspect or any possible implementation of the first aspect, or the method in the above second aspect or any possible implementation of the second aspect.

[0035] In the ninth aspect, a chip is provided, which includes: a processor for calling and running a computer program from a memory, so that a communication device equipped with the chip executes a method for executing the above first aspect or any possible implementation of the first aspect, or the above second aspect or any possible implementation of the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] FIG1 is a schematic diagram showing a scenario of determining signal power according to signal priority in the related art.

[0037] FIG2 shows a schematic diagram of a scenario in which an example communication method is applicable provided in an embodiment of the present application.

[0038] FIG3 shows a schematic diagram of six sub-scenes based on a perception scene.

[0039] FIG4 shows a schematic structural diagram of a network device 20 and a terminal device 30 provided in an embodiment of the present application.

[0040] FIG5 shows a schematic interaction diagram of a communication method 500 provided in an embodiment of the present application.

[0041] FIG6 shows a schematic diagram of a power distribution method provided in an embodiment of the present application.

[0042] FIG7 shows a schematic diagram of another power distribution method provided in an embodiment of the present application.

[0043] FIG8 shows a schematic diagram of another power distribution method provided in an embodiment of the present application.

[0044] FIG9 shows a schematic block diagram of a communication device 900 provided in an embodiment of the present application.

[0045] FIG10 shows a schematic block diagram of another communication device 1000 provided in an embodiment of the present application.

[0046] FIG11 shows a schematic block diagram of a communication device 1100 according to an embodiment of the present application.

[0047] FIG12 shows a schematic block diagram of another communication device 1200 provided in an embodiment of the present application.

[0048] FIG13 shows a schematic structural diagram of a terminal device 1300 provided in this application.

[0049] FIG14 shows a schematic structural diagram of a network device 1400 provided in an embodiment of the present application.

[0050] FIG15 shows a schematic diagram of a chip system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application.

[0052] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, future fifth generation (5G) system or new radio (NR), etc.

[0053] The terminal device in the embodiments of the present application may refer to a user device, an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user apparatus. The terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future 5G network, or a terminal device in a future evolved public land mobile network (PLMN), etc., and the embodiments of the present application are not limited thereto.

[0054] The network device in the embodiment of the present application can be a device for communicating with a terminal device. The network device can be a base station (base transceiver station, BTS) in a global system for mobile communications (GSM) system or code division multiple access (CDMA), or a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (CRAN) scenario, or the network device can be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, etc., and the embodiment of the present application is not limited.

[0055] In an embodiment of the present application, a terminal device or a network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also called main memory). The operating system can be any one or more computer operating systems that implement business processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system. The application layer includes applications such as browsers, address books, word processing software, and instant messaging software. In addition, the embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided in the embodiment of the present application. As long as it is possible to communicate according to the method provided in the embodiment of the present application by running a program that records the code of the method provided in the embodiment of the present application, for example, the execution subject of the method provided in the embodiment of the present application can be a terminal device or a network device, or a functional module in the terminal device or the network device that can call a program and execute the program.

[0056] In addition, various aspects or features of the present application can be implemented as methods, apparatus, or articles of manufacture using standard programming and / or engineering techniques. The term "article of manufacture" as used in this application covers computer programs that can be accessed from any computer-readable device, carrier, or medium. For example, computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes, etc.), optical disks (e.g., compact discs (CDs), digital versatile discs (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memories (EPROMs), cards, sticks, or key drives, etc.). In addition, the various storage media described herein may represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0057] As fifth-generation mobile communication systems evolve towards enhanced 5G technologies, communication and perception integration is considered a key technology for expanding the service capabilities of mobile communication networks. The core concept of this technology is to add perception capabilities to mobile communication networks, building the ability to detect, track, and image targets. This allows communication and perception capabilities to be integrated into a single network, achieving harmonious coexistence and even mutual benefit.

[0058] The technical principles of perception differ somewhat from those of communication. In communication, a transmitter modulates information onto radio waves and transmits them to a receiver, which then demodulates the signal carried on the radio waves to retrieve the information. Perception, on the other hand, requires the transmitter to send radio waves in a specific direction. When these waves strike a target surface, they reflect back, which the receiver then processes to obtain information such as the target's location, speed, and type.

[0059] Perception is generally categorized into two modes: single-station sensing and dual-station sensing. In single-station sensing, the transmitter and receiver of the sensing signal are the same device. In terms of the sensing signal process, the sensing station both transmits the sensing signal and receives the signal reflected from the target surface. Therefore, the single-station sensing mode is also called the self-transmitting, self-receiving mode. In dual-station sensing, the transmitter and receiver of the sensing signal are different devices. In terms of the sensing signal process, after sensing station A transmits the sensing signal, the signal reflected from the target surface is received by sensing station B. Therefore, the dual-station sensing mode is also called the A-transmitting, B-receiving mode.

[0060] In a wireless communication system, communications can be divided into different types according to the types of sending nodes and receiving nodes. Generally, sending information from a network device to a terminal device is called downlink communication, and sending information from a terminal device to a network device is called uplink communication. In Long Term Evolution (LTE) / Long Term Evolution Advanced (LTE-A) communication systems and New RAT (NR) systems, communications can be mainly divided into Frequency Division Duplex (FDD) mode and Time Division Duplex (TDD) mode according to the different duplex modes. For a wireless communication system operating in TDD mode, the downlink carrier and uplink carrier of the system are carriers with the same carrier frequency. The multiple access method usually adopts Orthogonal Frequency Division Multiplexing Access (OFDMA) method. The main feature of OFDMA is that it divides transmission resources into mutually orthogonal time-frequency resource elements (REs). The signals sent by the transmitter are all carried on the REs and transmitted to the receiver. Because different REs are orthogonal to each other, the receiver can receive the signals sent on each RE separately.

[0061] In the LTE system, terminal devices support simultaneous access to two network devices. This access method is called Dual Connectivity (DC), where one network device is the primary network device and the other network device is the secondary network device. The one or more cells served by the primary network device for the terminal device are called the Master Cell Group (MCG), and the one or more cells served by the secondary network device for the terminal device are called the Secondary Cell Group (SCG). In the development and evolution of wireless communication systems, operators will deploy 5G NR systems and LTE systems at the same time. Terminal devices also support simultaneous access to LTE network devices and NR network devices. Because LTE is also called Evolved Universal Terrestrial Radio Access (E-UTRA), this access method is called Evolved Universal Terrestrial Radio Access and New Air Interface Dual Connectivity (E-UTRA NR Dual Connectivity, EN-DC). In EN-DC mode, the LTE network device is the primary network device, and the NR network device is the secondary network device. Of course, with the evolution of the system, it can also support NR E-UTRA Dual Connectivity (NE-DC) in the future, that is, the NR network device is the primary network device, and the LTE network device is the secondary network device. Since both EN-DC and NE-DC terminals will access network devices with two different radio access technologies, these DC modes can also be collectively referred to as multi-radio access technology dual connectivity (Multi-RAT Dual Connectivity, MR-DC). In addition, for terminal devices that only support NR, they can also access two different NR network devices at the same time. This type of connection is called NR-NR DC.

[0062] To increase the rate at which terminal devices send uplink signals to network devices, terminal devices operating in DC mode can typically send uplink signals to network devices on carriers in both the MCG and SCG simultaneously within the same time period. However, the total power of uplink signals sent by terminal devices on all carriers is often limited, such as a maximum of 23dBm. Therefore, if the total power of uplink signals sent by terminal devices on carriers in the MCG and SCG exceeds the maximum transmit power, the terminal device needs to proactively reduce the transmit power on one or more carriers.

[0063] In related technologies, the priorities of different signals and channels are predefined in the protocol. The terminal device can determine the priority of the signal based on the type of uplink signal sent on the carriers of the MCG and SCG in the same time period, and reduce the power of the low-priority signal, thereby ensuring the power of the high-priority signal. Alternatively, when the terminal device sends the same type of uplink signal on the carriers of the MCG and SCG in the same time period, it can be predefined that the priority of the signal on the MCG is higher than the priority of the signal on the SCG, that is, when the terminal device sends the same type of uplink signal on the carriers of the MCG and SCG in the same time period, the terminal device reduces the power of the uplink signal sent on the carrier of the SCG.

[0064] Exemplarily, the priority of the signal decreases in the following order: carrying the confirmation character ACK, the negative character NACK; the physical uplink control channel (PUCCH) carrying the scheduling request (SR); the physical uplink shared channel (PUSCH) carrying ACK and NACK; the PUCCH carrying the channel state information (CSI); the PUSCH carrying CSI; the PUSCH not carrying ACK, NACK or CSI; and the sounding reference signal (SRS).

[0065] For example, when the signal sent on the carrier in the MCG is a PUCCH carrying ACK, NACK, and SR, and the signal sent on the carrier in the SCG is a PUSCH carrying ACK and NACK, the priority of the signal sent on the carrier in the MCG is greater than the priority of the signal sent on the carrier in the SCG. In order to ensure that the total power of uplink signals sent to the network device on the carriers in the MCG and SCG does not exceed the maximum power of the terminal device, the terminal device can actively reduce the power of the signal sent on the carrier in the SCG. Alternatively, when the signal sent on the carrier in the MCG is a PUSCH carrying ACK and NACK, and the signal sent on the carrier in the SCG is a PUCCH carrying ACK, NACK, and SR, the priority of the signal sent on the carrier in the SCG is greater than the priority of the signal sent on the carrier in the MCG. In order to ensure that the total power of uplink signals sent to the network device on the carriers in the MCG and SCG does not exceed the maximum power of the terminal device, the terminal device can actively reduce the power of the signal sent on the carrier in the MCG.

[0066] For another example, when the signal sent on the carrier in the MCG is a PUCCH carrying ACK, NACK, and SR, and the signal sent on the carrier in the SCG is also a PUCCH carrying ACK, NACK, and SR, the terminal device reduces the power of the uplink signal sent on the carrier in the SCG.

[0067] In this related technology, only the type of communication signal and the type of CG are considered to determine the priority. This method of determining the priority based on the type of communication signal and thereby reducing the signal power transmitted on the carrier with low priority does not take into account the needs of the perception integration scenario. In the uplink multi-carrier perception integration scenario, when the terminal device sends perception signals on two different carriers at the same time, the existing priority and communication methods cannot be applied.

[0068] For example, FIG1 shows a schematic diagram of a scenario in which signal power is determined according to signal priority in the related art. As shown in FIG1 , the terminal device 110 communicates with the network device 120 and the network device 130 respectively. Assuming that the network device 120 serves the terminal device 110 as a primary base station, the one or more cells provided by the network device 120 to the terminal device 110 are MCGs. The network device 130 serves the terminal device 110 as a secondary base station, and the one or more cells provided by the network device 130 to the terminal device 110 are SCGs. In order to increase the power of the uplink signal sent by the terminal device 110 to the network device, the terminal device 110 can simultaneously send a first uplink signal to the network device 120 on the first carrier of the MCG and send a second uplink signal to the network device 130 on the second carrier of the SCG within the same time period. However, the total power of the uplink signals sent by the terminal device 110 on all carriers is limited. If the total power of the first uplink signal and the second uplink signal sent by the terminal device 110 on the carriers in the MCG and the SCG exceeds the maximum transmit power, the terminal device needs to actively reduce the transmit power on one or more carriers.

[0069] In one possible scenario, both the network device 120 and the network device 130 are network devices supporting NR, or both the network device 120 and the network device 130 are network devices supporting LTE.

[0070] In another possible scenario, the network device 120 and the network device 130 are network devices belonging to two different wireless access technologies. For example, the network device 120 may be an NR network device, and the network device 130 may be an LTE network device. The terminal device 110 uses a dual connection DC method to simultaneously access the NR network device and the LTE network device. The terminal device 110 sends a first uplink signal to the NR network device through the NR uplink carrier, and sends a second uplink signal to the LTE network device through the LTE uplink carrier. Of course, carrier aggregation (CA) can also be used to access NR and LTE network devices.

[0071] In the example of Figure 1, when the transmission power of the first uplink signal and the transmission power of the second uplink signal of the terminal device 110 exceed the maximum transmission power of the terminal device 110, the terminal device 110 determines whether to reduce the transmission power of the first uplink signal or reduce the transmission power of the second transmission signal according to the type of the first uplink signal and the type of the second uplink signal so that the total power of the transmission power of the first uplink signal and the transmission power of the second uplink signal does not exceed the maximum transmission power of the terminal device 110.

[0072] However, the above-mentioned related technologies cannot support the problem of uplink power control in the synaesthesia scenario. Therefore, how to control the transmission power of multiple signals sent by the terminal device when the terminal device sends perception signals on two different carriers at the same time in the uplink multi-carrier synaesthesia scenario is a problem that needs to be solved at present.

[0073] In view of this, the present application provides a communication method, which includes: the terminal device divides power equally based on the maximum transmission power, aligns the power spectrum density, and prioritizes power allocation to high and low frequency resource units in three ways, so that the terminal device can achieve optimal multi-carrier joint perception performance without exceeding the maximum transmission power.

[0074] Before introducing the communication method provided by the embodiment of the present application, the application scenarios to which the embodiment of the present application is applicable are first described.

[0075] The application scenario of this application is a communication and perception integration scenario. Figure 2 shows a schematic diagram of a scenario in which the communication method provided by an embodiment of this application is applicable. As shown in Figure 2, the network devices and various terminal devices in the communication network can perceive objects that do not have communication functions while communicating. The perceived targets are not limited to vehicles, low-altitude drones, and pedestrians, but also include other moving or stationary objects.

[0076] It should be understood that integrated sensing and communication (ISAC) refers to the joint design of a system that supports both communication and perception functions. Compared with separate communication and perception systems, ISAC has advantages in size, weight, power consumption, cost, efficiency, etc.

[0077] It should also be understood that communication is the transmission of information between two or more points, and perception is the detection of parameters of the physical environment, such as speed measurement, target positioning, etc. In other words, synaesthesia integration refers to the integration of the two functions of communication and perception, so that future communication systems have both communication and perception functions. While wireless communication transmits information, it actively recognizes and analyzes the characteristics of the channel to perceive the physical characteristics of the surrounding environment, thereby enhancing the communication and perception functions.

[0078] In an ISAC network based on the evolution of an existing cellular communication system, a base station can request multiple terminal devices to measure passive target objects. The passive target objects described in this application may refer to target objects that cannot receive and send signals. For example, the target objects may be vehicles, low-altitude drones, pedestrians, or stationary objects such as buildings as shown in Figure 2.

[0079] Figure 3 shows a schematic diagram of six sub-scenarios based on a perception scenario. As shown in Figure 3 (a), the network device, as the transmitter and receiver of the perception parameter signal, must both send the perception signal to measure the perception parameters of the target object (e.g., a vehicle) and receive the signal reflected from the target object's surface. As shown in Figure 3 (b), the terminal device, as the transmitter and receiver of the perception signal, must both send the perception signal to measure the perception parameters of the target object (e.g., a vehicle) and receive the signal reflected from the target object's surface. As shown in Figure 3(c), network device A acts as a transmitter of a sensing signal, and network device B acts as a receiver of the sensing signal. Network device A transmits the sensing signal to measure the sensing parameters of a target object (e.g., a vehicle), and network device B receives the sensing signal on the surface of the target object. As shown in Figure 3(d), terminal device A acts as a transmitter of a sensing signal, and terminal device B acts as a receiver of the sensing signal. Terminal device A transmits the sensing signal to measure the sensing parameters of a target object (e.g., a vehicle), and terminal device B receives the sensing signal on the surface of the target object. As shown in Figure 3(e), network device A acts as a transmitter of a sensing signal, and terminal device B acts as a receiver of the sensing signal. Network device A transmits the sensing signal to measure the sensing parameters of a target object (e.g., a vehicle), and terminal device B receives the sensing signal on the surface of the target object. As shown in Figure 3(f), terminal device A acts as a transmitter of a sensing signal, and network device B acts as a receiver of the sensing signal. Terminal device A transmits the sensing signal to measure the sensing parameters of a target object (e.g., a vehicle), and terminal device B receives the sensing signal on the surface of the target object.

[0080] The scenarios to which the embodiments of the present application are applicable are mainly scenarios in which the terminal device sends a perception signal, namely the scenarios shown in Figure 3 (b), Figure 3 (d), and Figure 3 (f).

[0081] It should be noted that the terminal devices in the above application scenarios are used to send uplink signals to network devices or receive downlink signals from network devices. They can be fixed devices, mobile devices, handheld devices (such as mobile phones), wearable devices, in-vehicle devices, or wireless devices built into the above devices (such as communication modules, modems, or chip systems). Terminal devices are used to connect people, objects, machines, etc. and can be widely used in various scenarios, such as: cellular communications, device-to-device (D2D) communications, V2X communications, machine-to-machine / machine-type communications (M2M / MTC) communications, Internet of Things (IoT), virtual reality (VR), augmented reality (AR), industrial control, self-driving, remote medical, smart grid, smart furniture, smart office, smart wearables, smart transportation, smart city, drones, robots, and other scenarios. For example, the terminal device may be a handheld terminal in cellular communication, a communication device in D2D, an IoT device in MTC, a surveillance camera in smart transportation and smart cities, or a communication device on a drone, etc. The terminal device may sometimes be referred to as user equipment (UE), user terminal, user device, user unit, user station, terminal, access terminal, access station, UE station, remote station, mobile device, or wireless communication device, etc.

[0082] It should also be noted that the network equipment in the above application scenarios: used to receive uplink signals from terminal equipment, or send downlink signals to terminal equipment; can be LTE and / or NR network equipment, can be base stations (NodeB), evolved base stations (evolved NodeB, eNodeB), next generation base stations (next generation NodeB, gNB) in 5G mobile communication systems, transmission reception points (TRP), base stations that have subsequently evolved with 3GPP, access nodes in WiFi systems, wireless relay nodes, wireless backhaul nodes, etc.

[0083] In some embodiments, the network device 20 and the terminal device 30 may also be referred to as a communication device, which may be a general device or a dedicated device, and the embodiments of the present application do not specifically limit this.

[0084] As shown in FIG4 , it is a schematic diagram of the structures of the network device 20 and the terminal device 30 provided in an embodiment of the present application.

[0085] The terminal device 30 includes at least one processor (in FIG. 4 , the exemplary embodiment includes a processor 301 for example) and at least one transceiver (in FIG. 4 , the exemplary embodiment includes a transceiver 303 for example). Furthermore, the terminal device 30 may also include at least one memory (in FIG. 4 , the exemplary embodiment includes a memory 302 for example), at least one output device (in FIG. 4 , the exemplary embodiment includes an output device 304 for example), and at least one input device (in FIG. 4 , the exemplary embodiment includes an input device 305 for example).

[0086] The processor 301, the memory 302 and the transceiver 303 are connected via a communication line. The communication line may include a path to transmit information between the above components.

[0087] The processor 301 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present application. In a specific implementation, as an embodiment, the processor 301 may also include multiple CPUs, and the processor 301 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. The processor here may refer to one or more devices, circuits, or processing cores for processing data (such as computer program instructions).

[0088] The memory 302 may be a device having a storage function. For example, it may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory 302 may exist independently and be connected to the processor 301 via a communication line. The memory 302 may also be integrated with the processor 301.

[0089] The memory 302 is used to store computer-executable instructions for executing the solution of the present application, and the execution is controlled by the processor 301. Specifically, the processor 301 is used to execute the computer-executable instructions stored in the memory 302, thereby implementing the method described in the embodiment of the present application.

[0090] Alternatively, in the present application, the processor 301 may also perform processing-related functions in the signal sending and receiving method provided in the present application, and the transceiver 303 may be responsible for communicating with other devices or communication networks. The embodiments of the present application do not specifically limit this.

[0091] The computer-executable instructions involved in this application may also be referred to as application code or computer program code, which is not specifically limited in the embodiments of this application.

[0092] The transceiver 303 can be any transceiver-like device for communicating with other devices or communication networks, such as Ethernet, radio access networks (RAN), or wireless local area networks (WLAN). The transceiver 303 includes a transmitter (Tx) and a receiver (Rx).

[0093] Output device 304 communicates with processor 301 and can display information in a variety of ways. For example, output device 304 can be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector.

[0094] The input device 305 communicates with the processor 301 and can accept user input in various ways. For example, the input device 305 can be a mouse, keyboard, touch screen device, or sensor device.

[0095] The network device 20 includes at least one processor (in FIG. 4 , the example is illustrated by including a processor 201) and at least one transceiver (in FIG. 4 , the example is illustrated by including a transceiver 203). Furthermore, the network device 20 may also include at least one memory (in FIG. 4 , the example is illustrated by including a memory 202) and at least one network interface (in FIG. 4 , the example is illustrated by including a network interface 204). The processor 201, the memory 202, the transceiver 203, and the network interface 204 are connected via a communication line. The network interface 204 is used to connect to the core network device via a link, or to connect to the network interface of other network devices via a wired or wireless link (not shown in FIG. 4). This embodiment of the present application does not specifically limit this. In addition, the relevant description of the processor 201, the memory 202, and the transceiver 203 can refer to the description of the processor 301, the memory 302, and the transceiver 303 in the terminal device 30, and will not be repeated here.

[0096] It is understood that the structure shown in FIG4 does not constitute a specific limitation on the terminal device 30 and the network device 20. For example, in other embodiments of the present application, the terminal device 30 and the network device 20 may include more or fewer components than shown, or combine or separate certain components, or arrange the components differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.

[0097] The communication method provided in the present application is described in detail below in conjunction with Figure 5. Figure 5 shows a schematic interaction diagram of a communication method 500 of an embodiment of the present application. The method 500 can be applied in the above-mentioned scenario, and of course can also be applied in other communication scenarios. The embodiment of the present application is not limited here.

[0098] It should be understood that in the embodiments of the present application, the method 500 is described using a terminal device and a network device as examples of the execution entities of each step in the method 500. As an example and not a limitation, the execution entities of each step in the method 500 may also be a chip used in a terminal device and a chip used in a network device.

[0099] As shown in FIG5 , the method 500 includes:

[0100] S510. The terminal device determines to send a first signal to a first network device within a first time unit on a first carrier, and determines to send a second signal to a second network device within a second time unit on a second carrier, wherein the first time unit and the second time unit overlap.

[0101] In this embodiment of the present application, the first carrier and the second carrier are different carriers.

[0102] In some possible implementations, the first carrier and the second carrier may belong to different carriers of the same CG, that is, two carriers of carrier aggregation. In other words, when the first carrier and the second carrier belong to different carriers of the same CG, the terminal device sends a first signal to the first network device within a first time unit on the first carrier and sends a second signal to the first network device within a second time unit on the second carrier. In other words, in this case, the first network device and the second network device are the same network device.

[0103] It should be understood that the first network device and the second network device being the same network device can be understood as the first network device and the second network device being physically the same network device but logically different network devices. Alternatively, it can also be understood as the first network device and the second network device being logically the same network device but physically different network devices.

[0104] In some other possible implementations, the first carrier and the second carrier may belong to different CGs. The first carrier and the second carrier may belong to an MCG and an SCG, respectively. In this case, the terminal device sends a first signal to the first network device within a first time unit on the first carrier and sends a second signal to the second network device within a second time unit on the second carrier. That is, in this case, the first network device and the second network device are different network devices.

[0105] It should be understood that the first network device and the second network device being different network devices can be understood as the first network device and the second network device being physically different network devices and logically different network devices.

[0106] Alternatively, the first carrier and the second carrier may belong to two different SCGs, or the first carrier and the second carrier may belong to two different MCGs. That is, in this case, the first network device and the second network device may be the same network device.

[0107] It should be understood that the first carrier and the second carrier may belong to the same radio access technology, for example, the first carrier and the second carrier are both NR carriers, or the first carrier and the second carrier are both LTE carriers. The first carrier and the second carrier may also belong to different radio access technologies, for example, the first carrier is an NR carrier and the second carrier is an LTE carrier, or the first carrier is an LTE carrier and the second carrier is an NR carrier, or the first carrier is an NR carrier and the second carrier is a 6G carrier; or the first carrier is a 6G carrier and the second carrier is an NR carrier, etc. Of course, the first carrier and the second carrier may also belong to other radio access technologies. The embodiment of the present application does not specifically limit the radio access technologies supported by the first carrier and the second carrier.

[0108] It should be noted that the first time unit may also be a first time period, which may be one first time unit or multiple first time units, and the second time unit may also be a second time period, which may be one second time unit or multiple second time units.

[0109] Optionally, the first time unit and the second time unit may be one of the following time units:

[0110] The first type is a subframe. A subframe is 1ms long and contains 14 orthogonal frequency division multiplexing (OFDM) symbols in a 15kHz subcarrier spacing numerology. Within a subframe, symbol boundaries are aligned for all numerologies with subcarrier spacing of 15kHz or greater. Unless otherwise specified, "symbol" refers to an OFDM symbol.

[0111] The second type: slot, is the time length of a possible scheduling unit. In NR, one slot consists of 14 symbols, and the time length of one slot is related to the value of the subcarrier spacing. For example, when the subcarrier spacing is 15kHz, the length of one slot is 1ms; when the subcarrier spacing is 30kHz, the length of one slot is 0.5ms; when the subcarrier spacing is 60kHz, the length of one slot is 0.25ms; when the subcarrier spacing is 120kHz, the length of one slot is 0.125ms.

[0112] The third type: mini-slot, which is the minimum time length of the scheduling unit. A mini-slot can include 2 or more symbols (less than 14 symbols).

[0113] The fourth type: symbol (Symbol), which can be an OFDM symbol or a DFT-S-OFDM symbol, is not limited here.

[0114] That is, the first time unit may be any one of a first subframe, a first time slot, a first mini-time slot, or a first symbol, and the first time period may be any one of multiple first subframes, multiple first time slots, multiple first mini-time slots, or multiple first symbols. The second time unit may also be any one of a first subframe, a first time slot, a first mini-time slot, or a first symbol, and the second time period may be any one of multiple first subframes, multiple first time slots, multiple first mini-time slots, or multiple first symbols.

[0115] In some embodiments, the first signal may be a perceptual signal or a synaesthesia signal, and the second signal may be a perceptual signal or a synaesthesia signal. The first signal type and the second signal type may be the same or different, that is, the first signal and the second signal may both be perceptual signals, or the first signal and the second signal may both be synaesthesia signals. In other words, the first signal and the second signal may be a perceptual signal and a synaesthesia signal, respectively, that is, the first signal is a perceptual signal and the second signal is a synaesthesia signal, or the first signal is a synaesthesia signal and the second signal is a perceptual signal, etc. The embodiments of the present application do not specifically limit the types of the first signal and the second signal.

[0116] It should be understood that perception signals can be understood as signals used to perceive objects or environments, synaesthesia signals can be understood as signals used for both communication and perception, and synaesthesia signals can be understood as signals used for both communication and perception. Signals used for communication include signals used for data transmission, such as PUSCH, and signals for measuring communication channels, such as PUCCH.

[0117] S520. The terminal device determines a first transmission power of a first signal to be sent in a first time unit and a second transmission power of a second signal to be sent in a second time unit.

[0118] In a possible implementation, the first transmission power of the terminal device for sending the first signal is pre-indicated by the network device, and the second transmission power of the terminal device for sending the second signal is also pre-indicated by the network device.

[0119] In another possible implementation, the first transmission power of the terminal device for sending the first signal may be calculated according to a calculation formula indicated by the network device, and the second transmission power of the terminal device for sending the second signal may also be calculated according to a calculation formula indicated by the network device.

[0120] Of course, the terminal device can also determine the first transmit power and the second transmit power through other methods. The embodiment of the present application does not specifically limit the method by which the terminal device determines the first transmit power of the first signal to be sent within the first time unit and the second transmit power of the second signal to be sent within the second time unit.

[0121] S530. When the sum of the first transmit power and the second transmit power is greater than the maximum transmit power of the terminal device, the terminal device determines a third transmit power of the first signal to be sent in the first time period, and a fourth transmit power of the second signal to be sent in the second time period, wherein the third transmit power is less than or equal to the first transmit power, and the fourth transmit power is less than or equal to the second transmit power.

[0122] In an embodiment of the present application, the terminal device may determine, based on the first transmit power and the second transmit power, whether the sum of the first transmit power and the second transmit power is greater than the maximum transmit power of the terminal device. When the sum of the first transmit power and the second transmit power is greater than the maximum transmit power of the terminal device, the terminal device may redetermine, based on the maximum transmit power, the transmit power for transmitting the first signal in the first time unit in the first carrier, i.e., the third transmit power, and redetermine the transmit power for transmitting the second signal in the second time unit in the second carrier, i.e., the fourth transmit power.

[0123] In some embodiments, when allocating the third transmit power and the fourth transmit power based on the maximum transmit power, the terminal device ensures that the frequency domain power spectral density when the first signal is transmitted using the third transmit power is equal to the frequency domain power spectral density when the second signal is transmitted using the fourth transmit power. When the bandwidths of the first signal and the second signal are unequal, the equal frequency domain power spectral density results in a higher power for the signal with the larger bandwidth.

[0124] It should be understood that the frequency domain power spectrum can be understood as the transmission power on each frequency domain resource.

[0125] Exemplarily, Figure 6 shows a schematic diagram of a power allocation method provided in an embodiment of the present application. As shown in Figure 6, the frequency domain power spectral density of the first signal sent by the terminal device in the first time unit on the first carrier is equal to the frequency domain power spectral density of the second signal sent by the terminal device in the second time unit on the second carrier, and it can also be seen from Figure 6 that the bandwidth of the first signal is greater than the bandwidth of the second signal, then the signal power of the first signal is greater than the signal power of the second signal.

[0126] In this implementation, the third transmit power and the fourth transmit power satisfy that the frequency domain power spectral density when the terminal device sends the first signal is equal to the frequency domain power spectral density when sending the second signal, so that the sum of the third transmit power and the fourth transmit power is less than or equal to the maximum transmit power of the terminal device.

[0127] In other embodiments, the terminal device ensures, based on the maximum transmit power, that the power used when transmitting the first signal using the third transmit power is equal to the power used when transmitting the second signal using the fourth transmit power. That is, the terminal device may evenly distribute the third transmit power and the fourth transmit power based on the maximum transmit power, such that the third transmit power and the fourth transmit power are equal. When the bandwidths of the first signal and the second signal are unequal, the frequency power spectral density of the signal with the larger bandwidth is lower.

[0128] For example, Figure 7 shows a schematic diagram of another power allocation method provided in an embodiment of the present application. As shown in Figure 7, the area of ​​the block is the transmission power of the signal, and the power of the first signal sent by the terminal device is equal to the power of the second signal sent by the terminal device. When the bandwidth of the first signal sent by the terminal device in the first time unit in the first carrier is greater than the bandwidth of the second signal sent by the terminal device in the second time unit in the second carrier, the frequency domain power spectral density of the first signal is lower than the frequency domain power spectral density of the second signal.

[0129] In this implementation, the third transmit power and the fourth transmit power satisfy that the power when the terminal device sends the first signal is equal to the power when it sends the second signal, so that the sum of the third transmit power and the fourth transmit power is less than or equal to the maximum transmit power of the terminal device.

[0130] In some further embodiments, the terminal device ensures that power is preferentially allocated to resource units with lower frequencies in carriers with lower frequencies, and resource units with higher frequencies in carriers with higher frequencies, based on the maximum transmit power.

[0131] For example, FIG8 shows a schematic diagram of another power allocation method provided in an embodiment of the present application. As shown in FIG8 , the frequency of the first carrier is less than the frequency of the second carrier, the frequency of the first frequency domain resource in the first carrier is less than the frequency of the second frequency domain resource in the first carrier, and the frequency of the third frequency domain resource in the second carrier is less than the frequency of the fourth frequency domain resource in the second carrier. When allocating the third transmit power and the fourth transmit power based on the maximum transmit power, the terminal device preferentially allocates power to the first frequency domain resource in the first carrier and the fourth frequency domain resource in the second carrier.

[0132] It should be understood that the transmit power of the terminal device is preferentially allocated to the first frequency domain resources in the first carrier and the fourth frequency domain resources in the second carrier. It can be understood that the terminal device allocates transmit power to the first frequency domain resources in the first carrier and the fourth frequency domain resources in the second carrier according to the size of the transmit power. After the allocation of the first frequency domain resources in the first carrier and the fourth frequency domain resources in the second carrier is completed, the transmit power is allocated to the second frequency domain resources in the first carrier and the third frequency domain resources in the second carrier according to the size of the remaining transmit power. That is, the power spectral density of the first frequency domain resource of the first signal on the first carrier is greater than the power spectral density of the second frequency domain resource on the first carrier, and the power spectral density of the second signal on the third frequency domain resource on the second carrier is greater than the power spectral density of the fourth frequency domain resource on the second carrier.

[0133] It should also be understood that the first frequency domain resources may include a resource unit, such as a subcarrier, or may include multiple resource units, such as multiple subcarriers, etc. Similarly, the second frequency domain resources may also include a resource unit or multiple resource units, the third frequency domain resources may also include a resource unit or multiple resource units, and the fourth frequency domain resources may also include a resource unit or multiple resource units.

[0134] In this implementation, the third transmit power and the fourth transmit power satisfy the power priority allocation to resource units with lower frequencies in carriers with lower frequencies, and resource units with higher frequencies in carriers with higher frequencies, thereby improving the signal perception accuracy while ensuring that the sum of the third transmit power and the fourth transmit power is less than or equal to the maximum transmit power of the terminal device.

[0135] In one possible implementation, a terminal device may receive first indication information from a network device, where the first indication information is used to indicate a mode in which the terminal device transmits a perception signal on a first carrier and a second carrier. The perception signal modes include a joint perception mode and an independent perception mode. The joint perception mode enables the network device to perform joint perception of the first signal and the second signal sent by the terminal device, thereby improving perception performance. The independent perception mode enables the network device to perform perception using the first signal and the second signal separately.

[0136] Optionally, when the first indication information indicates that the mode in which the terminal device sends the perception signal on the first carrier and the second carrier is a joint perception mode, the terminal device can determine the third transmission power and the fourth transmission power according to any one of the above three methods.

[0137] When the first indication information indicates that the mode in which the terminal device sends perception signals on the first carrier and the second carrier is an independent perception mode, the terminal device can allocate resources based on priority. For example, the priority of the main carrier is higher than that of the secondary carrier, and the priority of the main CG is higher than that of the secondary CG, so that power is preferentially allocated to signals with higher priority, and if there is any remaining power, it is allocated to signals with lower priority.

[0138] In other words, the first indication information can also be understood as a power allocation method for instructing the terminal device to send a first signal on a first carrier and a second signal on a second carrier; the terminal device determines the third transmit power and the fourth transmit power based on the first indication information, including: when the first indication information indicates the first power allocation method, the frequency domain power spectral density of the first signal and the frequency domain power spectral density of the second signal are equal, or the third transmit power and the fourth transmit power are equal, for example, the examples shown in Figures 6 and 7.

[0139] Alternatively, when the first indication information indicates the second power allocation method, the power spectrum density of the first frequency domain resource of the first signal on the first carrier is greater than the power spectrum density of the second frequency domain resource on the first carrier, and the power spectrum density of the third frequency domain resource of the second signal on the second carrier is greater than the power spectrum density of the second frequency domain resource on the fourth carrier, for example, the example shown in Figure 8.

[0140] S540a: The terminal device sends a first signal to the first network device at a third transmission power within a first time unit on the first carrier.

[0141] S540b: The terminal device sends a second signal to the second network device at a fourth transmission power within a second time unit on the second carrier.

[0142] Based on the power allocation scheme in step S530, a third transmit power for transmitting the first signal by the terminal device and a fourth transmit power for transmitting the second signal are determined, where the sum of the third transmit power and the fourth transmit power is less than or equal to the maximum transmit power of the terminal device. Furthermore, based on the power determination method in step S530, effective power control can be performed when the terminal device simultaneously transmits the perception signal on two different carriers.

[0143] Optionally, in one possible implementation, when the difference between the third transmission power determined in step S530 and the first transmission power in step S520 is greater than a first threshold, the first signal may not be sent in step S540 and only the second signal may be sent; or, when the difference between the fourth transmission power determined in step S530 and the second transmission power in step S520 is greater than a second threshold, the second signal may not be sent in step S540 and only the first signal may be sent.

[0144] It should be understood that the difference between the third transmit power and the first transmit power can be the difference between the logarithmic values ​​of the first transmit power and the third transmit power, or the difference between the third transmit power and the first transmit power can also be the difference between the linear values ​​of the first transmit power and the third transmit power.

[0145] For example, if the first transmission power is 20 dB and the third transmission power is 17 dB, the power difference is 3 dB. If the first threshold is 2 dB and the difference is greater than the first threshold, the terminal device may not send the first signal but only the second signal.

[0146] Alternatively, the first transmission power is 0.05 W and the third transmission power is 0.03 W, and the power difference is 0.02 W. Assuming that the first threshold is 0.01 W, the difference is greater than the first threshold, and the terminal device may not send the first signal but only send the second signal.

[0147] It should be noted that the first threshold can be determined according to specific circumstances, and the embodiment of the present application does not specifically limit the value of the first threshold.

[0148] Of course, the difference between the fourth transmit power and the second transmit power may also be the difference between the logarithmic values ​​of the second and fourth transmit powers, or the difference between the fourth transmit power and the second transmit power may also be the difference between the linear values ​​of the second and fourth transmit powers. The second threshold value may be determined based on specific circumstances, and the embodiment of the present application does not specifically limit the value of the second threshold value.

[0149] It should be noted that in the example of Figure 5, the terminal device sends a first signal to the first network device at a third transmit power within a first time unit on the first carrier, and sends a second signal to the second network device at a fourth transmit power within a second time unit on the second carrier. The first network device and the second network device can jointly sense the object to be detected based on the received first and second signals. The first network device and the second network device can be the same device or different devices.

[0150] The applicable scenarios of the embodiments of the present application also include terminal devices serving as the sending and receiving ends of perception signals, that is, the terminal device sends a perception signal, and the terminal device receives the signal reflected by the perception signal on the surface of the object to be measured, and the terminal device performs joint perception of the object to be measured based on the received first signal and the second signal, wherein the terminal device sending the perception signal and the terminal device receiving the perception signal can be the same terminal device or different terminal devices, and the embodiments of the present application do not make specific limitations on this.

[0151] To summarize, based on the communication method provided in the embodiment of the present application, an uplink power allocation scheme for the communication signal of the perception signal is defined. The allocation scheme includes three methods: aligning the power spectrum density, evenly allocating power, and prioritizing power allocation to high and low frequency resource units. This optimizes the joint perception performance of multiple carriers in the DC scenario, so that when the terminal device sends perception signals on two different carriers at the same time, effective power control can be performed.

[0152] It should be understood that the methods, situations, categories and divisions of the embodiments in the present application are only for the convenience of description and should not constitute special limitations. The features of various methods, categories, situations and embodiments can be combined without contradiction.

[0153] It should also be understood that the above is merely intended to help those skilled in the art better understand the embodiments of the present application, and is not intended to limit the scope of the embodiments of the present application. Based on the above examples, those skilled in the art can obviously make various equivalent modifications or variations. For example, certain steps in the above method 500 may be unnecessary, or certain new steps may be added. Or any combination of any two or more of the above embodiments. Such modifications, variations, or combinations also fall within the scope of the embodiments of the present application.

[0154] It should also be understood that the above description of the embodiments of the present application focuses on emphasizing the differences between the various embodiments. The same or similar points that are not mentioned can be referenced with each other. For the sake of brevity, they will not be repeated here.

[0155] It should also be understood that the size of the serial numbers of the above-mentioned processes does not mean 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.

[0156] It should also be understood that in the embodiments of the present application, "pre-setting" and "pre-definition" can be achieved by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices). This application does not limit its specific implementation method.

[0157] It should also be understood that in the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0158] The above describes in detail the examples of communication methods provided by the present application. It is understandable that, in order to realize the above functions, the authentication service function, the terminal device, and the unified data management include hardware structures and / or software modules corresponding to the execution of each function. It should be easily appreciated by those skilled in the art that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present application.

[0159] The communication device provided by this application will be introduced below.

[0160] For example, Figure 9 shows a schematic block diagram of a communication device 900 provided in an embodiment of the present application. The communication device 900 may correspond to the terminal device described in each embodiment of the above method 500, or may be a chip or component applied to the terminal device. Moreover, each module or unit in the communication device 900 is respectively used to execute each action or processing process performed by the terminal device described in each embodiment of the above method 500.

[0161] As shown in FIG9 , the communication device 900 includes a transceiver unit 910 and a processing unit 920. The transceiver unit 910 is configured to perform specific signal transmission and reception under the drive of the processing unit 920.

[0162] In some embodiments:

[0163] a processing unit 920, configured to determine a first transmit power of a first signal in a first time unit on a first carrier, and determine a second transmit power of a second signal in a second time unit on a second carrier, wherein the first time unit and the second time unit overlap in time;

[0164] The processing unit 920 is further configured to, when the sum of the first transmit power and the second transmit power is greater than a transmit power threshold, determine a third transmit power of the first signal within the first time unit, where the third transmit power is less than or equal to the first transmit power, and determine a fourth transmit power of the second signal within the second time unit, where the fourth transmit power is less than or equal to the second transmit power; wherein the frequency domain power spectral density of transmitting the first signal is equal to the frequency domain power spectral density of transmitting the second signal; or,

[0165] The third transmit power is equal to the fourth transmit power; or, the power spectrum density of the first frequency domain resource of the first signal on the first carrier is greater than the power spectrum density of the second frequency domain resource on the first carrier, the power spectrum density of the third frequency domain resource of the second signal on the second carrier is greater than the power spectrum density of the fourth frequency domain resource on the second carrier, the frequency of the first carrier is less than the frequency of the second carrier, the frequency of the first frequency domain resource is less than the frequency of the second frequency domain resource, and the frequency of the third frequency domain resource is less than the frequency of the fourth frequency domain resource.

[0166] The communication device provided in the present application, in a DC scenario, if the terminal device overlaps in the time of sending the first signal and the second signal, and the sum of the first transmission power and the second transmission power is greater than the transmission power threshold, the transmission power of the terminal device can be allocated using any one of the above three methods, so that the third transmission power when the terminal device sends the first signal on the first carrier and the fourth transmission power when the terminal device sends the second signal on the second carrier can be effectively controlled to avoid the third transmission power and the fourth transmission power being greater than the maximum transmission power of the terminal device.

[0167] In some possible implementations, the processing unit 920 is further configured to preferentially allocate the transmit power of the terminal device to the first frequency domain resources in the first carrier and the fourth frequency domain resources in the second carrier.

[0168] In some possible implementations, when the frequency domain power spectral density of the first signal is equal to the frequency domain power spectral density of the second signal, and the bandwidth of the first signal is greater than the bandwidth of the second signal, the third transmit power is greater than the fourth transmit power.

[0169] In some possible implementations, when the first transmit power and the second transmit power are equal and the bandwidth of the first signal is greater than the bandwidth of the second signal, the frequency domain power spectral density of the first signal is less than the frequency domain power spectral density of the second signal.

[0170] In some possible implementations, the transceiver unit 910 is further used to receive first indication information sent by a network device, where the first indication information is used to indicate a power allocation method for the terminal device to send the first signal on the first carrier and the second signal on the second carrier; determine the third transmit power and the fourth transmit power according to the first indication information, including: when the first indication information indicates a first power allocation method, the frequency domain power spectral density of sending the first signal and the frequency domain power spectral density of sending the second signal are equal, or the third transmit power and the fourth transmit power are equal; when the first indication information indicates a second power allocation method, the power spectral density of the first signal in the first frequency domain resource on the first carrier is greater than the power spectral density of the second frequency domain resource on the first carrier, and the power spectral density of the second signal in the third frequency domain resource on the second carrier is greater than the power spectral density of the second frequency domain resource on the fourth carrier.

[0171] It should be understood that the specific processes by which each unit in communication device 900 executes the corresponding steps described above can be found in the description of the terminal device described above in conjunction with method 500 and the related embodiment in FIG5 . For example, transceiver unit 910 may execute the steps involving receiving and transmitting in the above method embodiment, while processing unit 920 may execute steps other than transmitting and receiving. The various specific processes are described in the method embodiment. For the sake of brevity, they are not further described here.

[0172] Optionally, the transceiver unit 910 may include a receiving unit (module) and a sending unit (module), configured to execute the steps of the terminal device receiving information and sending information in each embodiment of the aforementioned method 500 .

[0173] It should be understood that the transceiver unit 910 may be a transceiver, an input / output interface, or an interface circuit. The storage unit may be a memory. The processing unit 920 may be implemented by a processor. Figure 10 shows a schematic block diagram of another example communication device 1000 provided in an embodiment of the present application. As shown in Figure 10, the communication device 1000 may include a processor 1010, a memory 1020, and a transceiver 1030.

[0174] The communication device 900 shown in FIG9 or the communication device 1000 shown in FIG10 can implement the steps performed by the terminal device in the embodiment of the aforementioned method 500. Similar descriptions can refer to the descriptions of the aforementioned corresponding methods. To avoid repetition, they are not repeated here.

[0175] It should also be understood that the communication device 900 shown in FIG. 9 or the communication device 1000 shown in FIG. 10 may be a terminal device.

[0176] Figure 11 shows a schematic block diagram of a communication device 110 according to an embodiment of the present application. The communication device 1100 may correspond to the network device described in the above method 500, or may be a chip or component applied to the network device. Moreover, each module or unit in the communication device 1100 is respectively used to execute each action or processing process performed by the network device in the above method 500.

[0177] As shown in FIG11 , the communication device 1100 may include a transceiver unit 1110 and a processing unit 1120. The transceiver unit 1110 is configured to perform specific signal transmission and reception under the drive of the processing unit 1120.

[0178] In some embodiments:

[0179] The transceiver unit 1110 is configured to receive a first signal sent by a terminal device using a third transmit power in a first time unit on a first carrier, and a second signal sent using a fourth transmit power in a second time unit on a second carrier;

[0180] The frequency domain power spectral density of the first signal is equal to the frequency domain power spectral density of the second signal; or

[0181] The third transmission power and the fourth transmission power are equal; or,

[0182] The power spectrum density of the first frequency domain resource of the first signal on the first carrier is greater than the power spectrum density of the second frequency domain resource on the first carrier, the power spectrum density of the second signal on the third frequency domain resource on the second carrier is greater than the power spectrum density of the fourth frequency domain resource on the second carrier, the frequency of the first carrier is less than the frequency of the second carrier, the frequency of the first frequency domain resource is less than the frequency of the second frequency domain resource, and the frequency of the third frequency domain resource is less than the frequency of the fourth frequency domain resource.

[0183] The communication device provided in the present application, in a DC scenario, the network device can receive a first signal sent by a terminal device using a third transmission power and a second signal sent using a fourth transmission power, wherein the third transmission power and the fourth transmission power satisfy any one of the above three methods, so that the third transmission power of the first signal received by the network device on the first carrier and the fourth transmission power of the second signal received on the second carrier can be effectively controlled to avoid the third transmission power and the fourth transmission power being greater than the maximum transmission power of the terminal device.

[0184] In some possible implementations, when the frequency domain power spectral density of the first signal is equal to the frequency domain power spectral density of the second signal, and the bandwidth of the first signal is greater than the bandwidth of the second signal, the third transmit power is greater than the fourth transmit power.

[0185] In some possible implementations, when the third transmit power is equal to the fourth transmit power and the bandwidth of the first signal is greater than the bandwidth of the second signal, the frequency domain power spectral density of the first signal is less than the frequency domain power spectral density of the second signal.

[0186] In some possible implementations, the transceiver unit 1110 is further configured to send first indication information to the terminal device, where the first indication information is used to instruct the terminal device on a power allocation mode for sending the first signal on the first carrier and sending the second signal on the second carrier;

[0187] The power allocation mode includes: when the first indication information indicates a first power allocation mode, the frequency domain power spectral density of sending the first signal is equal to the frequency domain power spectral density of sending the second signal, or the third transmit power is equal to the fourth transmit power;

[0188] When the first indication information indicates the second power allocation method, the power spectrum density of the first frequency domain resources of the first signal on the first carrier is greater than the power spectrum density of the second frequency domain resources on the first carrier, and the power spectrum density of the second signal on the third frequency domain resources on the second carrier is greater than the power spectrum density of the second frequency domain resources on the fourth carrier.

[0189] It should be understood that the specific processes by which each unit in communication device 1100 executes the corresponding steps described above can be found in the description of the network device described above in conjunction with the relevant embodiments of method 500. For example, transceiver unit 1110 may perform the steps involving receiving and sending in the aforementioned method embodiments, while processing unit 1120 may perform steps other than processing and transceiving. The various specific processing methods are described in the method embodiments. For the sake of brevity, they are not further detailed here.

[0190] Optionally, the transceiver unit 1110 may include a receiving unit (module) and a sending unit (module), configured to execute the steps of the network device receiving information and sending information in each embodiment of the aforementioned method 500 .

[0191] It should be understood that the transceiver unit 1110 may be a transceiver, an input / output interface, or an interface circuit. The storage unit may be a memory. The processing unit 1120 may be implemented by a processor. Figure 12 shows a schematic block diagram of another example communication device 1200 provided in an embodiment of the present application. As shown in Figure 12, the communication device 1200 may include a processor 1210, a memory 1220, and a transceiver 1230.

[0192] The communication device 1100 shown in FIG11 or the communication device 1200 shown in FIG12 can implement the steps performed by the network device in the embodiment of the aforementioned method 500. Similar descriptions can refer to the descriptions of the aforementioned corresponding methods. To avoid repetition, they are not repeated here.

[0193] It should also be understood that the communication device 1100 shown in FIG. 11 or the communication device 1200 shown in FIG. 12 may be a network device.

[0194] It should also be understood that the division of units in the above device is merely a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. Moreover, the units in the device can all be implemented in the form of software called through processing elements; or all be implemented in the form of hardware; or some units can be implemented in the form of software called through processing elements, and some units can be implemented in the form of hardware. For example, each unit can be a separately established processing element, or it can be integrated into a certain chip of the device. In addition, it can also be stored in a memory in the form of a program, and called by a certain processing element of the device to execute the function of the unit. Here, the processing element can also be called a processor, which can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each unit above can be implemented by the integrated logic circuit of the hardware in the processor element or in the form of software called through the processing element.

[0195] In one example, the unit in any of the above devices may be one or more integrated circuits configured to implement the above method, such as one or more application specific integrated circuits (ASICs), or one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms. For another example, when the unit in the device can be implemented in the form of a processing element scheduler, the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call a program. For another example, these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0196] Figure 13 is a schematic diagram of the structure of a terminal device 1300 provided in this application, which can be used to implement the functions of the terminal device in the above method. The above-mentioned communication device 900 or communication device 1000 can be configured in the terminal device 1300. Alternatively, the communication device 900 or communication device 1000 itself can be the terminal device 1300. In other words, the terminal device 1300 can perform the actions performed by the terminal device in the above method 500. Optionally, for ease of explanation, Figure 13 only shows the main components of the terminal device. As shown in Figure 13, the terminal device 1300 includes a processor, memory, control circuit, antenna, and input and output devices.

[0197] The processor is primarily used to process communication protocols and communication data, control the entire terminal device, execute software programs, and process software program data, such as supporting the terminal device in executing the actions described in the embodiment of the method for indicating a transmission precoding matrix. The memory is primarily used to store software programs and data, such as the codebook described in the above embodiment. The control circuit is primarily used to convert baseband signals into radio frequency signals and process radio frequency signals. The control circuit and antenna together are also called a transceiver, which is primarily used to transmit and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, displays, and keyboards, are primarily used to receive user input and output data to the user.

[0198] When the terminal device is powered on, the processor reads the software program stored in the storage unit, interprets and executes the program's instructions, and processes the program's data. When data needs to be transmitted wirelessly, the processor performs baseband processing on the data to be transmitted and outputs the baseband signal to the RF circuit. The RF circuit then performs RF processing on the baseband signal and transmits it via the antenna as electromagnetic waves. When data is sent to the terminal device, the RF circuit receives the RF signal via the antenna, converts it into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes it.

[0199] Those skilled in the art will appreciate that, for ease of explanation, FIG13 shows only one memory and processor. In an actual terminal device, multiple processors and memories may exist. The memory may also be referred to as a storage medium or storage device, etc., which is not limited in the present embodiment.

[0200] For example, a processor may include a baseband processor and a central processing unit (CPU). The baseband processor is primarily responsible for processing communication protocols and communication data, while the CPU is primarily responsible for controlling the entire terminal device, executing software programs, and processing data from software programs. The processor in Figure 13 integrates the functions of both the baseband processor and the CPU. Those skilled in the art will appreciate that the baseband processor and the CPU may also be independent processors interconnected via a bus or other technology. Those skilled in the art will appreciate that a terminal device may include multiple baseband processors to accommodate different network standards, multiple CPUs to enhance its processing capabilities, and that the various components of the terminal device may be connected via various buses. The baseband processor may also be referred to as a baseband processing circuit or a baseband processing chip. The CPU may also be referred to as a central processing circuit or a central processing chip. The functionality for processing communication protocols and communication data may be built into the processor or stored as a software program in a storage unit, with the processor executing the software program to implement the baseband processing functionality.

[0201] By way of example, in an embodiment of the present application, an antenna and a control circuit having transceiver functions may be regarded as a transceiver unit 1301 of the terminal device 1300, and a processor having a processing function may be regarded as a processing unit 1302 of the terminal device 1300. As shown in FIG13 , the terminal device 1300 includes a transceiver unit 1301 and a processing unit 1302. The transceiver unit may also be referred to as a transceiver, a transceiver, a transceiver device, etc. Optionally, the device used to implement the receiving function in the transceiver unit 1301 may be regarded as a receiving unit, and the device used to implement the transmitting function in the transceiver unit 1301 may be regarded as a transmitting unit, that is, the transceiver unit 1301 includes a receiving unit and a transmitting unit. By way of example, the receiving unit may also be referred to as a receiver, a receiver, a receiving circuit, etc., and the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit, etc.

[0202] Figure 14 is a structural diagram of a network device 1400 provided in an embodiment of the present application, which can be used to implement the functions of the network device in the above method. The network device 1400 includes one or more radio frequency units, such as a remote radio unit (RRU) 1401 and one or more baseband units (BBU) (also known as digital units, DU) 1402. The RRU 1401 can be called a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., and may include at least one antenna 14011 and a radio frequency unit 14012. The RRU 1401 part is mainly used for receiving and transmitting radio frequency signals and converting radio frequency signals into baseband signals, for example, for sending signaling messages in the above embodiment to terminal devices. The BBU 1402 part is mainly used for baseband processing, controlling the base station, etc. The RRU 1401 and BBU 1402 can be physically set together or physically separated, that is, a distributed base station.

[0203] The BBU 1402 is the control center of the base station, which can also be called a processing unit, and is mainly used to perform baseband processing functions such as channel coding, multiplexing, modulation, spread spectrum, etc. For example, the BBU (processing unit) 1402 can be used to control the base station to execute the operation process of the network device in the above method embodiment.

[0204] In one example, the BBU 1402 may be composed of one or more single boards, and the multiple single boards may jointly support a wireless access network of a single access standard (such as an LTE system or a 5G system), or may respectively support wireless access networks of different access standards. The BBU 1402 also includes a memory 14021 and a processor 14022. The memory 14021 is used to store necessary instructions and data. For example, the memory 14021 stores the codebook in the above embodiment, etc. The processor 14022 is used to control the base station to perform necessary actions, such as controlling the base station to execute the operation process of the network device in the above method embodiment. The memory 14021 and the processor 14022 can serve one or more single boards. That is, a memory and a processor can be set separately on each single board. Alternatively, multiple single boards may share the same memory and processor. In addition, necessary circuits may be provided on each single board.

[0205] In one possible implementation, with the development of system-on-chip (SoC) technology, all or part of the functions of parts 1402 and 1401 can be implemented using SoC technology. For example, they can be implemented using a base station function chip that integrates a processor, memory, antenna interface, and other components. Programs for base station-related functions are stored in the memory, and the processor executes the programs to implement the base station-related functions. Optionally, the base station function chip can also read memory external to the chip to implement the base station-related functions.

[0206] It should also be understood that the division of units in the above device is merely a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. Moreover, the units in the device can all be implemented in the form of software called through processing elements; or all be implemented in the form of hardware; or some units can be implemented in the form of software called through processing elements, and some units can be implemented in the form of hardware. For example, each unit can be a separately established processing element, or it can be integrated into a certain chip of the device. In addition, it can also be stored in a memory in the form of a program, and called by a certain processing element of the device to execute the function of the unit. Here, the processing element can also be called a processor, which can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each unit above can be implemented by the integrated logic circuit of the hardware in the processor element or in the form of software called through the processing element. In one example, the unit in any of the above devices may be one or more integrated circuits configured to implement the above method, such as one or more application specific integrated circuits (ASICs), or one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms. For another example, when the unit in the device can be implemented in the form of a processing element scheduler, the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call a program. For another example, these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0207] An embodiment of the present application also provides a chip system, as shown in Figure 15, which includes at least one processor 1510 and at least one interface circuit 1520. The processor 1510 and the interface circuit 1520 can be interconnected via lines. For example, the interface circuit 1520 can be used to receive signals from other devices (such as the memory of the terminal device 1300). For another example, the interface circuit 1520 can be used to send signals to other devices (such as the processor 1510). Exemplarily, the interface circuit 1520 can read instructions stored in the memory and send the instructions to the processor 1510. When the instructions are executed by the processor 1510, the terminal device can execute the various steps performed by the terminal device in the above embodiment. Of course, the chip system can also include other discrete components, which is not specifically limited in the embodiment of the present application.

[0208] An embodiment of the present application also provides a communication system, which includes: the network device and terminal device provided in the above method embodiment.

[0209] The present application also provides a computer-readable storage medium for storing computer program code, wherein the computer program includes instructions for executing any of the communication methods provided in the embodiments of the present application. The computer-readable storage medium may be a read-only memory (ROM) or a random access memory (RAM), which is not limited in the present application.

[0210] The present application also provides a computer program product, which includes instructions. When the instructions are executed, the network device and the terminal device perform corresponding operations corresponding to the above method.

[0211] The present application also provides a chip in a communication device, comprising a processing unit and a communication unit. The processing unit may be, for example, a processor, and the communication unit may be, for example, an input / output interface, a pin, or a circuit. The processing unit may execute computer instructions to cause the communication device to perform any of the communication methods provided in the embodiments of the present application.

[0212] Optionally, the computer instructions are stored in a storage unit.

[0213] Optionally, the storage unit is a storage unit within the chip, such as a register, cache, etc. The storage unit can also be a storage unit located outside the chip within the terminal, such as a ROM or other type of static storage device that can store static information and instructions, random access RAM, etc. The processor mentioned in any of the above can be a CPU, a microprocessor, an ASIC, or one or more integrated circuits for controlling the execution of the program of the above-mentioned feedback information transmission method. The processing unit and the storage unit can be decoupled and respectively set on different physical devices, and connected by wired or wireless means to implement the respective functions of the processing unit and the storage unit to support the system chip to implement the various functions in the above-mentioned embodiments. Alternatively, the processing unit and the memory can also be coupled on the same device.

[0214] Among them, the terminal device, computer-readable storage medium, computer program product or chip provided in this embodiment are all used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding methods provided above, and will not be repeated here.

[0215] It will be appreciated that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a ROM, a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a RAM, which is used as an external cache. There are many different types of RAM, 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 link dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM).

[0216] Various objects such as various messages / information / equipment / network elements / systems / devices / actions / operations / processes / concepts that may appear in this application are named. It can be understood that these specific names do not constitute a limitation on the relevant objects. The names assigned may change with factors such as scenarios, contexts or usage habits. The understanding of the technical meaning of the technical terms in this application should be mainly determined from the functions and technical effects embodied / executed in the technical solutions.

[0217] In the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0218] Those skilled in the art will appreciate that the units and algorithm steps of each example 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 performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel 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.

[0219] The methods in the embodiments of the present application can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, they can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instruction is loaded and executed on a computer, the process or function described in the embodiments of the present application is executed in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program or instruction can be stored in a computer-readable storage medium or transmitted via the computer-readable storage medium. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server that integrates one or more available media.

[0220] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0221] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0222] The units described as separate components may or may not be physically separate, and 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 these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0223] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0224] If the functions are implemented in the form of 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 the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a readable storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned readable storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

[0225] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that, The method is applied to a terminal device, and the method includes: Determining a first transmission power of a first signal within a first time unit on a first carrier, and determining a second transmission power of a second signal within a second time unit on a second carrier, where the first time unit and the second time unit overlap in time; When the sum of the first transmission power and the second transmission power is greater than a transmission power threshold, determining a third transmission power of the first signal within the first time unit, where the third transmission power is less than or equal to the first transmission power, and determining a fourth transmission power of the second signal within the second time unit, where the fourth transmission power is less than or equal to the second transmission power; Wherein, the frequency-domain power spectral density of transmitting the first signal is equal to the frequency-domain power spectral density of transmitting the second signal; or, The third transmission power is equal to the fourth transmission power; or, The power spectral density of the first signal on a first frequency-domain resource on the first carrier is greater than the power spectral density on a second frequency-domain resource on the first carrier, the power spectral density of the second signal on a third frequency-domain resource on the second carrier is greater than the power spectral density on a fourth frequency-domain resource on the second carrier, the frequency of the first carrier is less than the frequency of the second carrier, the frequency of the first frequency-domain resource is less than the frequency of the second frequency-domain resource, and the frequency of the third frequency-domain resource is less than the frequency of the fourth frequency-domain resource.

2. The method according to claim 1, wherein The method further includes: Prioritizing the allocation of the transmission power of the terminal device to the first frequency-domain resource in the first carrier and the fourth frequency-domain resource in the second carrier.

3. The method according to claim 1 or 2, characterized in that, When the frequency-domain power spectral density of transmitting the first signal is equal to the frequency-domain power spectral density of transmitting the second signal, and the bandwidth of the first signal is greater than the bandwidth of the second signal, the third transmission power is greater than the fourth transmission power.

4. The method according to claim 1 or 2, characterized in that When the third transmission power is equal to the fourth transmission power, and the bandwidth of the first signal is greater than the bandwidth of the second signal, the frequency-domain power spectral density of the first signal is less than the frequency-domain power spectral density of the second signal.

5. The method according to any one of claims 1-4, characterized in that, Before determining the third transmission power of the first signal within the first time unit and determining the fourth transmission power of the second signal within the second time unit, the method further includes: Receiving first indication information sent by a network device, where the first indication information is used to indicate a power allocation manner for the terminal device to transmit the first signal on the first carrier and the second signal on the second carrier; Determining the third transmission power and the fourth transmission power according to the first indication information, including: In the case where the first indication information indicates a first power allocation manner, the frequency-domain power spectral density of transmitting the first signal is equal to the frequency-domain power spectral density of transmitting the second signal, or the third transmission power is equal to the fourth transmission power; When the first indication information indicates the second power allocation method, the power spectral density of the first signal in the first frequency-domain resource on the first carrier is greater than the power spectral density of the first signal in the second frequency-domain resource on the first carrier, and the power spectral density of the second signal in the third frequency-domain resource on the second carrier is greater than the power spectral density of the second signal in the fourth frequency-domain resource on the second carrier.

6. The method according to any one of claims 1-5, characterized in that, The first signal is a sensing signal or a communication-sensing integrated signal, and the second signal is a sensing signal or a communication-sensing integrated signal.

7. A communication method, characterized in that, The method is applied to a network device, and the method includes: Receiving a first signal transmitted by a terminal device with a third transmission power within a first time unit on a first carrier, and a second signal transmitted by the terminal device with a fourth transmission power within a second time unit on a second carrier; wherein, the frequency-domain power spectral density of transmitting the first signal is equal to the frequency-domain power spectral density of transmitting the second signal; or, the third transmission power is equal to the fourth transmission power; or, the power spectral density of the first signal in the first frequency-domain resource on the first carrier is greater than the power spectral density of the first signal in the second frequency-domain resource on the first carrier, the power spectral density of the second signal in the third frequency-domain resource on the second carrier is greater than the power spectral density of the second signal in the fourth frequency-domain resource on the second carrier, the frequency of the first carrier is less than the frequency of the second carrier, the frequency of the first frequency-domain resource is less than the frequency of the second frequency-domain resource, and the frequency of the third frequency-domain resource is less than the frequency of the fourth frequency-domain resource.

8. The method according to claim 7, wherein When the frequency-domain power spectral density of transmitting the first signal is equal to the frequency-domain power spectral density of transmitting the second signal, and the bandwidth of the first signal is greater than the bandwidth of the second signal, the third transmission power is greater than the fourth transmission power.

9. The method according to claim 7, wherein When the third transmission power is equal to the fourth transmission power, and the bandwidth of the first signal is greater than the bandwidth of the second signal, the frequency-domain power spectral density of the first signal is less than the frequency-domain power spectral density of the second signal.

10. The method according to any one of claims 7-9, characterized in that, Before receiving the first signal transmitted by the terminal device with a third transmission power within a first time unit on a first carrier, and the second signal transmitted by the terminal device with a fourth transmission power within a second time unit on a second carrier, the method further includes: Sending first indication information to the terminal device, where the first indication information is used to indicate the power allocation method for the terminal device to transmit the first signal on the first carrier and the second signal on the second carrier; The power allocation method includes: when the first indication information indicates the first power allocation method, the frequency-domain power spectral density of transmitting the first signal is equal to the frequency-domain power spectral density of transmitting the second signal, or the third transmission power is equal to the fourth transmission power. When the first indication information indicates the second power allocation mode, the power spectral density of the first signal in the first frequency domain resource on the first carrier is greater than the power spectral density in the second frequency domain resource on the first carrier, and the power spectral density of the second signal in the third frequency domain resource on the second carrier is greater than the power spectral density in the fourth frequency domain resource on the second carrier.

11. The method according to any one of claims 7 to 10, characterized in that, The first signal is a sensing signal or a communication-sensing integrated signal, and the second signal is a sensing signal or a communication-sensing integrated signal.

12. A communication device, characterized in that, The device includes at least one processor, and the at least one processor is coupled to at least one memory: The at least one processor is configured to execute computer programs or instructions in the at least one memory, so that the method according to any one of claims 1 to 6 is executed, or so that the method according to any one of claims 7 to 11 is executed.

13. A computer-readable storage medium, characterized in that, Computer programs or instructions are stored in the computer-readable storage medium. When the computer reads and executes the computer programs or instructions, the computer is caused to execute the method according to any one of claims 1 to 6, or to execute the method according to any one of claims 7 to 11.

14. A chip, characterized in that, Including: A processor, configured to execute the method according to any one of claims 1 to 6, or to execute the method according to any one of claims 7 to 11.

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